diff options
182 files changed, 9401 insertions, 13343 deletions
diff --git a/COPYRIGHT.txt b/COPYRIGHT.txt index a9edfac7a1..763f7a4440 100644 --- a/COPYRIGHT.txt +++ b/COPYRIGHT.txt @@ -127,7 +127,7 @@ License: Expat Files: ./thirdparty/basis_universal/ Comment: Basis Universal -Copyright: 2019, Binomial LLC. +Copyright: 2022, Binomial LLC. License: Apache-2.0 Files: ./thirdparty/brotli/ @@ -166,17 +166,17 @@ Comment: etcpak Copyright: 2013-2021, Bartosz Taudul License: BSD-3-clause -Files: ./thirdparty/fonts/DroidSans*.ttf +Files: ./thirdparty/fonts/DroidSans*.woff2 Comment: DroidSans font Copyright: 2008, The Android Open Source Project License: Apache-2.0 -Files: ./thirdparty/fonts/JetBrainsMono_Regular.ttf +Files: ./thirdparty/fonts/JetBrainsMono_Regular.woff2 Comment: JetBrains Mono font Copyright: 2020, JetBrains s.r.o. License: OFL-1.1 -Files: ./thirdparty/fonts/NotoSans*.ttf +Files: ./thirdparty/fonts/NotoSans*.woff2 Comment: Noto Sans font Copyright: 2012, Google Inc. License: OFL-1.1 diff --git a/core/io/dir_access.h b/core/io/dir_access.h index d63453e947..b97d097842 100644 --- a/core/io/dir_access.h +++ b/core/io/dir_access.h @@ -137,6 +137,10 @@ struct DirAccessRef { DirAccess *f = nullptr; DirAccessRef(DirAccess *fa) { f = fa; } + DirAccessRef(DirAccessRef &&other) { + f = other.f; + other.f = nullptr; + } ~DirAccessRef() { if (f) { memdelete(f); diff --git a/core/io/file_access.h b/core/io/file_access.h index 5413665440..a6cb5d9fc6 100644 --- a/core/io/file_access.h +++ b/core/io/file_access.h @@ -188,6 +188,10 @@ struct FileAccessRef { operator FileAccess *() { return f; } FileAccessRef(FileAccess *fa) { f = fa; } + FileAccessRef(FileAccessRef &&other) { + f = other.f; + other.f = nullptr; + } ~FileAccessRef() { if (f) { memdelete(f); diff --git a/core/io/ip.cpp b/core/io/ip.cpp index 8e0d47e762..2f88307d94 100644 --- a/core/io/ip.cpp +++ b/core/io/ip.cpp @@ -186,7 +186,7 @@ IP::ResolverID IP::resolve_hostname_queue_item(const String &p_hostname, IP::Typ } IP::ResolverStatus IP::get_resolve_item_status(ResolverID p_id) const { - ERR_FAIL_INDEX_V(p_id, IP::RESOLVER_MAX_QUERIES, IP::RESOLVER_STATUS_NONE); + ERR_FAIL_INDEX_V_MSG(p_id, IP::RESOLVER_MAX_QUERIES, IP::RESOLVER_STATUS_NONE, vformat("Too many concurrent DNS resolver queries (%d, but should be %d at most). Try performing less network requests at once.", p_id, IP::RESOLVER_MAX_QUERIES)); IP::ResolverStatus res = resolver->queue[p_id].status.get(); if (res == IP::RESOLVER_STATUS_NONE) { @@ -197,7 +197,7 @@ IP::ResolverStatus IP::get_resolve_item_status(ResolverID p_id) const { } IPAddress IP::get_resolve_item_address(ResolverID p_id) const { - ERR_FAIL_INDEX_V(p_id, IP::RESOLVER_MAX_QUERIES, IPAddress()); + ERR_FAIL_INDEX_V_MSG(p_id, IP::RESOLVER_MAX_QUERIES, IPAddress(), vformat("Too many concurrent DNS resolver queries (%d, but should be %d at most). Try performing less network requests at once.", p_id, IP::RESOLVER_MAX_QUERIES)); MutexLock lock(resolver->mutex); @@ -217,7 +217,7 @@ IPAddress IP::get_resolve_item_address(ResolverID p_id) const { } Array IP::get_resolve_item_addresses(ResolverID p_id) const { - ERR_FAIL_INDEX_V(p_id, IP::RESOLVER_MAX_QUERIES, Array()); + ERR_FAIL_INDEX_V_MSG(p_id, IP::RESOLVER_MAX_QUERIES, Array(), vformat("Too many concurrent DNS resolver queries (%d, but should be %d at most). Try performing less network requests at once.", p_id, IP::RESOLVER_MAX_QUERIES)); MutexLock lock(resolver->mutex); if (resolver->queue[p_id].status.get() != IP::RESOLVER_STATUS_DONE) { @@ -237,7 +237,7 @@ Array IP::get_resolve_item_addresses(ResolverID p_id) const { } void IP::erase_resolve_item(ResolverID p_id) { - ERR_FAIL_INDEX(p_id, IP::RESOLVER_MAX_QUERIES); + ERR_FAIL_INDEX_MSG(p_id, IP::RESOLVER_MAX_QUERIES, vformat("Too many concurrent DNS resolver queries (%d, but should be %d at most). Try performing less network requests at once.", p_id, IP::RESOLVER_MAX_QUERIES)); resolver->queue[p_id].status.set(IP::RESOLVER_STATUS_NONE); } diff --git a/core/io/ip.h b/core/io/ip.h index 5602710550..ab00b7b0a6 100644 --- a/core/io/ip.h +++ b/core/io/ip.h @@ -56,7 +56,7 @@ public: }; enum { - RESOLVER_MAX_QUERIES = 32, + RESOLVER_MAX_QUERIES = 256, RESOLVER_INVALID_ID = -1 }; diff --git a/core/math/bvh.h b/core/math/bvh.h index e686e27445..f429ce189b 100644 --- a/core/math/bvh.h +++ b/core/math/bvh.h @@ -196,6 +196,7 @@ public: //////////////////////////////////////////////////// void move(BVHHandle p_handle, const BOUNDS &p_aabb) { + DEV_ASSERT(!p_handle.is_invalid()); BVH_LOCKED_FUNCTION if (tree.item_move(p_handle, p_aabb)) { if (USE_PAIRS) { @@ -205,10 +206,12 @@ public: } void recheck_pairs(BVHHandle p_handle) { + DEV_ASSERT(!p_handle.is_invalid()); force_collision_check(p_handle); } void erase(BVHHandle p_handle) { + DEV_ASSERT(!p_handle.is_invalid()); BVH_LOCKED_FUNCTION // call unpair and remove all references to the item // before deleting from the tree @@ -225,6 +228,7 @@ public: // set pairable has never been called. // (deferred collision checks are a workaround for visual server for historical reasons) void force_collision_check(BVHHandle p_handle) { + DEV_ASSERT(!p_handle.is_invalid()); BVH_LOCKED_FUNCTION if (USE_PAIRS) { // the aabb should already be up to date in the BVH @@ -243,6 +247,7 @@ public: // but generically this makes items add or remove from the // tree internally, to speed things up by ignoring inactive items bool activate(BVHHandle p_handle, const BOUNDS &p_aabb, bool p_delay_collision_check = false) { + DEV_ASSERT(!p_handle.is_invalid()); BVH_LOCKED_FUNCTION // sending the aabb here prevents the need for the BVH to maintain // a redundant copy of the aabb. @@ -267,6 +272,7 @@ public: } bool deactivate(BVHHandle p_handle) { + DEV_ASSERT(!p_handle.is_invalid()); BVH_LOCKED_FUNCTION // returns success if (tree.item_deactivate(p_handle)) { @@ -285,6 +291,7 @@ public: } bool get_active(BVHHandle p_handle) { + DEV_ASSERT(!p_handle.is_invalid()); BVH_LOCKED_FUNCTION return tree.item_get_active(p_handle); } @@ -307,6 +314,7 @@ public: // prefer calling this directly as type safe void set_tree(const BVHHandle &p_handle, uint32_t p_tree_id, uint32_t p_tree_collision_mask, bool p_force_collision_check = true) { + DEV_ASSERT(!p_handle.is_invalid()); BVH_LOCKED_FUNCTION // Returns true if the pairing state has changed. bool state_changed = tree.item_set_tree(p_handle, p_tree_id, p_tree_collision_mask); @@ -465,13 +473,6 @@ private: continue; } -#ifdef BVH_CHECKS - // if neither are pairable, they should ignore each other - // THIS SHOULD NEVER HAPPEN .. now we only test the pairable tree - // if the changed item is not pairable - CRASH_COND(params.test_pairable_only && !tree._extra[ref_id].pairable); -#endif - // checkmasks is already done in the cull routine. BVHHandle h_collidee; h_collidee.set_id(ref_id); @@ -485,6 +486,7 @@ private: public: void item_get_AABB(BVHHandle p_handle, BOUNDS &r_aabb) { + DEV_ASSERT(!p_handle.is_invalid()); BVHABB_CLASS abb; tree.item_get_ABB(p_handle, abb); abb.to(r_aabb); diff --git a/core/math/bvh_structs.inc b/core/math/bvh_structs.inc index b0d9ae3615..58c8f0479a 100644 --- a/core/math/bvh_structs.inc +++ b/core/math/bvh_structs.inc @@ -60,11 +60,23 @@ private: public: // accessors - BVHABB_CLASS &get_aabb(uint32_t p_id) { return aabbs[p_id]; } - const BVHABB_CLASS &get_aabb(uint32_t p_id) const { return aabbs[p_id]; } + BVHABB_CLASS &get_aabb(uint32_t p_id) { + BVH_ASSERT(p_id < MAX_ITEMS); + return aabbs[p_id]; + } + const BVHABB_CLASS &get_aabb(uint32_t p_id) const { + BVH_ASSERT(p_id < MAX_ITEMS); + return aabbs[p_id]; + } - uint32_t &get_item_ref_id(uint32_t p_id) { return item_ref_ids[p_id]; } - const uint32_t &get_item_ref_id(uint32_t p_id) const { return item_ref_ids[p_id]; } + uint32_t &get_item_ref_id(uint32_t p_id) { + BVH_ASSERT(p_id < MAX_ITEMS); + return item_ref_ids[p_id]; + } + const uint32_t &get_item_ref_id(uint32_t p_id) const { + BVH_ASSERT(p_id < MAX_ITEMS); + return item_ref_ids[p_id]; + } bool is_dirty() const { return dirty; } void set_dirty(bool p) { dirty = p; } diff --git a/core/math/bvh_tree.h b/core/math/bvh_tree.h index da9b307778..cdb2bb4413 100644 --- a/core/math/bvh_tree.h +++ b/core/math/bvh_tree.h @@ -54,7 +54,7 @@ #define BVH_EXPAND_LEAF_AABBS // never do these checks in release -#if defined(TOOLS_ENABLED) && defined(DEBUG_ENABLED) +#ifdef DEV_ENABLED //#define BVH_VERBOSE //#define BVH_VERBOSE_TREE //#define BVH_VERBOSE_PAIRING @@ -217,7 +217,7 @@ private: BVH_ASSERT(!parent.is_leaf()); int child_num = parent.find_child(p_old_child_id); - BVH_ASSERT(child_num != BVHCommon::INVALID); + BVH_ASSERT(child_num != -1); parent.children[child_num] = p_new_child_id; TNode &new_child = _nodes[p_new_child_id]; @@ -229,7 +229,7 @@ private: BVH_ASSERT(!parent.is_leaf()); int child_num = parent.find_child(p_child_id); - BVH_ASSERT(child_num != BVHCommon::INVALID); + BVH_ASSERT(child_num != -1); parent.remove_child_internal(child_num); diff --git a/core/object/object.cpp b/core/object/object.cpp index 096edd4e60..226d3ef0b8 100644 --- a/core/object/object.cpp +++ b/core/object/object.cpp @@ -416,12 +416,22 @@ void Object::set(const StringName &p_name, const Variant &p_value, bool *r_valid } return; - } else if (p_name == CoreStringNames::get_singleton()->_meta) { - metadata = p_value.duplicate(); - if (r_valid) { - *r_valid = true; + } else { + OrderedHashMap<StringName, Variant>::Element *E = metadata_properties.getptr(p_name); + if (E) { + E->get() = p_value; + if (r_valid) { + *r_valid = true; + } + return; + } else if (p_name.operator String().begins_with("metadata/")) { + // Must exist, otherwise duplicate() will not work. + set_meta(p_name.operator String().replace_first("metadata/", ""), p_value); + if (r_valid) { + *r_valid = true; + } + return; } - return; } // Something inside the object... :| @@ -496,9 +506,12 @@ Variant Object::get(const StringName &p_name, bool *r_valid) const { *r_valid = true; } return ret; + } + + const OrderedHashMap<StringName, Variant>::Element *E = metadata_properties.getptr(p_name); - } else if (p_name == CoreStringNames::get_singleton()->_meta) { - ret = metadata; + if (E) { + ret = E->get(); if (r_valid) { *r_valid = true; } @@ -648,13 +661,20 @@ void Object::get_property_list(List<PropertyInfo> *p_list, bool p_reversed) cons if (!is_class("Script")) { // can still be set, but this is for user-friendliness p_list->push_back(PropertyInfo(Variant::OBJECT, "script", PROPERTY_HINT_RESOURCE_TYPE, "Script", PROPERTY_USAGE_DEFAULT)); } - if (!metadata.is_empty()) { - p_list->push_back(PropertyInfo(Variant::DICTIONARY, "__meta__", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL)); - } + if (script_instance && !p_reversed) { p_list->push_back(PropertyInfo(Variant::NIL, "Script Variables", PROPERTY_HINT_NONE, String(), PROPERTY_USAGE_CATEGORY)); script_instance->get_property_list(p_list); } + + for (OrderedHashMap<StringName, Variant>::ConstElement K = metadata.front(); K; K = K.next()) { + PropertyInfo pi = PropertyInfo(K.value().get_type(), "metadata/" + K.key().operator String()); + if (K.value().get_type() == Variant::OBJECT) { + pi.hint = PROPERTY_HINT_RESOURCE_TYPE; + pi.hint_string = "Resource"; + } + p_list->push_back(pi); + } } void Object::_validate_property(PropertyInfo &property) const { @@ -915,11 +935,23 @@ bool Object::has_meta(const StringName &p_name) const { void Object::set_meta(const StringName &p_name, const Variant &p_value) { if (p_value.get_type() == Variant::NIL) { - metadata.erase(p_name); + if (metadata.has(p_name)) { + metadata.erase(p_name); + metadata_properties.erase("metadata/" + p_name.operator String()); + notify_property_list_changed(); + } return; } - metadata[p_name] = p_value; + OrderedHashMap<StringName, Variant>::Element E = metadata.find(p_name); + if (E) { + E.value() = p_value; + } else { + ERR_FAIL_COND(!p_name.operator String().is_valid_identifier()); + E = metadata.insert(p_name, p_value); + metadata_properties["metadata/" + p_name.operator String()] = E; + notify_property_list_changed(); + } } Variant Object::get_meta(const StringName &p_name) const { @@ -928,7 +960,7 @@ Variant Object::get_meta(const StringName &p_name) const { } void Object::remove_meta(const StringName &p_name) { - metadata.erase(p_name); + set_meta(p_name, Variant()); } Array Object::_get_property_list_bind() const { @@ -954,20 +986,16 @@ Array Object::_get_method_list_bind() const { Vector<StringName> Object::_get_meta_list_bind() const { Vector<StringName> _metaret; - List<Variant> keys; - metadata.get_key_list(&keys); - for (const Variant &E : keys) { - _metaret.push_back(E); + for (OrderedHashMap<StringName, Variant>::ConstElement K = metadata.front(); K; K = K.next()) { + _metaret.push_back(K.key()); } return _metaret; } void Object::get_meta_list(List<StringName> *p_list) const { - List<Variant> keys; - metadata.get_key_list(&keys); - for (const Variant &E : keys) { - p_list->push_back(E); + for (OrderedHashMap<StringName, Variant>::ConstElement K = metadata.front(); K; K = K.next()) { + p_list->push_back(K.key()); } } diff --git a/core/object/object.h b/core/object/object.h index 6b4f1c81e6..41365cfe51 100644 --- a/core/object/object.h +++ b/core/object/object.h @@ -39,6 +39,7 @@ #include "core/templates/hash_map.h" #include "core/templates/list.h" #include "core/templates/map.h" +#include "core/templates/ordered_hash_map.h" #include "core/templates/safe_refcount.h" #include "core/templates/set.h" #include "core/templates/vmap.h" @@ -530,7 +531,8 @@ private: #endif ScriptInstance *script_instance = nullptr; Variant script; // Reference does not exist yet, store it in a Variant. - Dictionary metadata; + OrderedHashMap<StringName, Variant> metadata; + HashMap<StringName, OrderedHashMap<StringName, Variant>::Element> metadata_properties; mutable StringName _class_name; mutable const StringName *_class_ptr = nullptr; diff --git a/core/variant/variant_construct.h b/core/variant/variant_construct.h index 6027cb027e..ce2e9af04f 100644 --- a/core/variant/variant_construct.h +++ b/core/variant/variant_construct.h @@ -543,14 +543,12 @@ public: class VariantConstructNoArgsObject { public: static void construct(Variant &r_ret, const Variant **p_args, Callable::CallError &r_error) { - VariantInternal::clear(&r_ret); - VariantInternal::object_assign_null(&r_ret); + r_ret = (Object *)nullptr; // Must construct a TYPE_OBJECT containing nullptr. r_error.error = Callable::CallError::CALL_OK; } static inline void validated_construct(Variant *r_ret, const Variant **p_args) { - VariantInternal::clear(r_ret); - VariantInternal::object_assign_null(r_ret); + *r_ret = (Object *)nullptr; // Must construct a TYPE_OBJECT containing nullptr. } static void ptr_construct(void *base, const void **p_args) { PtrConstruct<Object *>::construct(nullptr, base); diff --git a/doc/classes/@GlobalScope.xml b/doc/classes/@GlobalScope.xml index f692a49ba1..a2b310ca82 100644 --- a/doc/classes/@GlobalScope.xml +++ b/doc/classes/@GlobalScope.xml @@ -2405,7 +2405,8 @@ Additionally, other keywords can be included: "exp" for exponential range editing, "radians" for editing radian angles in degrees, "degrees" to hint at an angle and "noslider" to hide the slider. </constant> <constant name="PROPERTY_HINT_ENUM" value="2" enum="PropertyHint"> - Hints that an integer, float or string property is an enumerated value to pick in a list specified via a hint string such as [code]"Hello,Something,Else"[/code]. + Hints that an integer, float or string property is an enumerated value to pick in a list specified via a hint string. + The hint string is a comma separated list of names such as [code]"Hello,Something,Else"[/code]. For integer and float properties, the first name in the list has value 0, the next 1, and so on. Explicit values can also be specified by appending [code]:integer[/code] to the name, e.g. [code]"Zero,One,Three:3,Four,Six:6"[/code]. </constant> <constant name="PROPERTY_HINT_ENUM_SUGGESTION" value="3" enum="PropertyHint"> Hints that a string property can be an enumerated value to pick in a list specified via a hint string such as [code]"Hello,Something,Else"[/code]. diff --git a/doc/classes/Environment.xml b/doc/classes/Environment.xml index 90d774058b..e5e7efd315 100644 --- a/doc/classes/Environment.xml +++ b/doc/classes/Environment.xml @@ -207,21 +207,6 @@ </member> <member name="sky_rotation" type="Vector3" setter="set_sky_rotation" getter="get_sky_rotation" default="Vector3(0, 0, 0)"> </member> - <member name="ss_reflections_depth_tolerance" type="float" setter="set_ssr_depth_tolerance" getter="get_ssr_depth_tolerance" default="0.2"> - The depth tolerance for screen-space reflections. - </member> - <member name="ss_reflections_enabled" type="bool" setter="set_ssr_enabled" getter="is_ssr_enabled" default="false"> - If [code]true[/code], screen-space reflections are enabled. Screen-space reflections are more accurate than reflections from [VoxelGI]s or [ReflectionProbe]s, but are slower and can't reflect surfaces occluded by others. - </member> - <member name="ss_reflections_fade_in" type="float" setter="set_ssr_fade_in" getter="get_ssr_fade_in" default="0.15"> - The fade-in distance for screen-space reflections. Affects the area from the reflected material to the screen-space reflection). Only positive values are valid (negative values will be clamped to [code]0.0[/code]). - </member> - <member name="ss_reflections_fade_out" type="float" setter="set_ssr_fade_out" getter="get_ssr_fade_out" default="2.0"> - The fade-out distance for screen-space reflections. Affects the area from the screen-space reflection to the "global" reflection. Only positive values are valid (negative values will be clamped to [code]0.0[/code]). - </member> - <member name="ss_reflections_max_steps" type="int" setter="set_ssr_max_steps" getter="get_ssr_max_steps" default="64"> - The maximum number of steps for screen-space reflections. Higher values are slower. - </member> <member name="ssao_ao_channel_affect" type="float" setter="set_ssao_ao_channel_affect" getter="get_ssao_ao_channel_affect" default="0.0"> The screen-space ambient occlusion intensity on materials that have an AO texture defined. Values higher than [code]0[/code] will make the SSAO effect visible in areas darkened by AO textures. </member> @@ -264,6 +249,21 @@ <member name="ssil_sharpness" type="float" setter="set_ssil_sharpness" getter="get_ssil_sharpness" default="0.98"> The amount that the screen-space indirect lighting effect is allowed to blur over the edges of objects. Setting too high will result in aliasing around the edges of objects. Setting too low will make object edges appear blurry. </member> + <member name="ssr_depth_tolerance" type="float" setter="set_ssr_depth_tolerance" getter="get_ssr_depth_tolerance" default="0.2"> + The depth tolerance for screen-space reflections. + </member> + <member name="ssr_enabled" type="bool" setter="set_ssr_enabled" getter="is_ssr_enabled" default="false"> + If [code]true[/code], screen-space reflections are enabled. Screen-space reflections are more accurate than reflections from [VoxelGI]s or [ReflectionProbe]s, but are slower and can't reflect surfaces occluded by others. + </member> + <member name="ssr_fade_in" type="float" setter="set_ssr_fade_in" getter="get_ssr_fade_in" default="0.15"> + The fade-in distance for screen-space reflections. Affects the area from the reflected material to the screen-space reflection). Only positive values are valid (negative values will be clamped to [code]0.0[/code]). + </member> + <member name="ssr_fade_out" type="float" setter="set_ssr_fade_out" getter="get_ssr_fade_out" default="2.0"> + The fade-out distance for screen-space reflections. Affects the area from the screen-space reflection to the "global" reflection. Only positive values are valid (negative values will be clamped to [code]0.0[/code]). + </member> + <member name="ssr_max_steps" type="int" setter="set_ssr_max_steps" getter="get_ssr_max_steps" default="64"> + The maximum number of steps for screen-space reflections. Higher values are slower. + </member> <member name="tonemap_exposure" type="float" setter="set_tonemap_exposure" getter="get_tonemap_exposure" default="1.0"> The default exposure used for tonemapping. </member> diff --git a/doc/classes/IP.xml b/doc/classes/IP.xml index 7ecac8680a..569f7fe570 100644 --- a/doc/classes/IP.xml +++ b/doc/classes/IP.xml @@ -103,7 +103,7 @@ <constant name="RESOLVER_STATUS_ERROR" value="3" enum="ResolverStatus"> DNS hostname resolver status: Error. </constant> - <constant name="RESOLVER_MAX_QUERIES" value="32"> + <constant name="RESOLVER_MAX_QUERIES" value="256"> Maximum number of concurrent DNS resolver queries allowed, [constant RESOLVER_INVALID_ID] is returned if exceeded. </constant> <constant name="RESOLVER_INVALID_ID" value="-1"> diff --git a/doc/classes/ReflectionProbe.xml b/doc/classes/ReflectionProbe.xml index debbfd8d5d..ff66a89cb7 100644 --- a/doc/classes/ReflectionProbe.xml +++ b/doc/classes/ReflectionProbe.xml @@ -5,7 +5,7 @@ </brief_description> <description> Captures its surroundings as a cubemap, and stores versions of it with increasing levels of blur to simulate different material roughnesses. - The [ReflectionProbe] is used to create high-quality reflections at a low performance cost (when [member update_mode] is [constant UPDATE_ONCE]). [ReflectionProbe]s can be blended together and with the rest of the scene smoothly. [ReflectionProbe]s can also be combined with [VoxelGI], SDFGI ([member Environment.sdfgi_enabled]) and screen-space reflections ([member Environment.ss_reflections_enabled]) to get more accurate reflections in specific areas. [ReflectionProbe]s render all objects within their [member cull_mask], so updating them can be quite expensive. It is best to update them once with the important static objects and then leave them as-is. + The [ReflectionProbe] is used to create high-quality reflections at a low performance cost (when [member update_mode] is [constant UPDATE_ONCE]). [ReflectionProbe]s can be blended together and with the rest of the scene smoothly. [ReflectionProbe]s can also be combined with [VoxelGI], SDFGI ([member Environment.sdfgi_enabled]) and screen-space reflections ([member Environment.ssr_enabled]) to get more accurate reflections in specific areas. [ReflectionProbe]s render all objects within their [member cull_mask], so updating them can be quite expensive. It is best to update them once with the important static objects and then leave them as-is. [b]Note:[/b] Unlike [VoxelGI] and SDFGI, [ReflectionProbe]s only source their environment from a [WorldEnvironment] node. If you specify an [Environment] resource within a [Camera3D] node, it will be ignored by the [ReflectionProbe]. This can lead to incorrect lighting within the [ReflectionProbe]. </description> <tutorials> diff --git a/doc/classes/String.xml b/doc/classes/String.xml index 9a6155c8a8..8108c5eb46 100644 --- a/doc/classes/String.xml +++ b/doc/classes/String.xml @@ -633,8 +633,8 @@ var some_string = "One,Two,Three,Four" var some_array = some_string.rsplit(",", true, 1) print(some_array.size()) # Prints 2 - print(some_array[0]) # Prints "Four" - print(some_array[1]) # Prints "Three,Two,One" + print(some_array[0]) # Prints "One,Two,Three" + print(some_array[1]) # Prints "Four" [/gdscript] [csharp] // There is no Rsplit. diff --git a/doc/classes/TabBar.xml b/doc/classes/TabBar.xml index 420ab2adeb..aca5e2d7f3 100644 --- a/doc/classes/TabBar.xml +++ b/doc/classes/TabBar.xml @@ -323,6 +323,9 @@ </constant> </constants> <theme_items> + <theme_item name="drop_mark_color" data_type="color" type="Color" default="Color(1, 1, 1, 1)"> + Modulation color for the [theme_item drop_mark] icon. + </theme_item> <theme_item name="font_disabled_color" data_type="color" type="Color" default="Color(0.875, 0.875, 0.875, 0.5)"> Font color of disabled tabs. </theme_item> @@ -356,6 +359,9 @@ <theme_item name="decrement_highlight" data_type="icon" type="Texture2D"> Icon for the left arrow button that appears when there are too many tabs to fit in the container width. Used when the button is being hovered with the cursor. </theme_item> + <theme_item name="drop_mark" data_type="icon" type="Texture2D"> + Icon shown to indicate where a dragged tab is gonna be dropped (see [member drag_to_rearrange_enabled]). + </theme_item> <theme_item name="increment" data_type="icon" type="Texture2D"> Icon for the right arrow button that appears when there are too many tabs to fit in the container width. When the button is disabled (i.e. the last tab is visible) it appears semi-transparent. </theme_item> diff --git a/doc/classes/TabContainer.xml b/doc/classes/TabContainer.xml index ec2be012e9..c506152546 100644 --- a/doc/classes/TabContainer.xml +++ b/doc/classes/TabContainer.xml @@ -172,6 +172,9 @@ </signal> </signals> <theme_items> + <theme_item name="drop_mark_color" data_type="color" type="Color" default="Color(1, 1, 1, 1)"> + Modulation color for the [theme_item drop_mark] icon. + </theme_item> <theme_item name="font_disabled_color" data_type="color" type="Color" default="Color(0.875, 0.875, 0.875, 0.5)"> Font color of disabled tabs. </theme_item> @@ -206,6 +209,9 @@ <theme_item name="decrement_highlight" data_type="icon" type="Texture2D"> Icon for the left arrow button that appears when there are too many tabs to fit in the container width. Used when the button is being hovered with the cursor. </theme_item> + <theme_item name="drop_mark" data_type="icon" type="Texture2D"> + Icon shown to indicate where a dragged tab is gonna be dropped (see [member drag_to_rearrange_enabled]). + </theme_item> <theme_item name="increment" data_type="icon" type="Texture2D"> Icon for the right arrow button that appears when there are too many tabs to fit in the container width. When the button is disabled (i.e. the last tab is visible) it appears semi-transparent. </theme_item> diff --git a/editor/SCsub b/editor/SCsub index 35c215b663..5dcc253e8b 100644 --- a/editor/SCsub +++ b/editor/SCsub @@ -99,6 +99,8 @@ if env["tools"]: # Fonts flist = glob.glob(env.Dir("#thirdparty").abspath + "/fonts/*.ttf") flist.extend(glob.glob(env.Dir("#thirdparty").abspath + "/fonts/*.otf")) + flist.extend(glob.glob(env.Dir("#thirdparty").abspath + "/fonts/*.woff")) + flist.extend(glob.glob(env.Dir("#thirdparty").abspath + "/fonts/*.woff2")) flist.sort() env.Depends("#editor/builtin_fonts.gen.h", flist) env.CommandNoCache( diff --git a/editor/action_map_editor.cpp b/editor/action_map_editor.cpp index ea51e1f399..96931efd3b 100644 --- a/editor/action_map_editor.cpp +++ b/editor/action_map_editor.cpp @@ -1100,6 +1100,31 @@ void ActionMapEditor::update_action_list(const Vector<ActionInfo> &p_action_info event_item->set_meta("__event", event); event_item->set_meta("__index", evnt_idx); + // First Column - Icon + Ref<InputEventKey> k = event; + if (k.is_valid()) { + if (k->get_physical_keycode() == Key::NONE) { + event_item->set_icon(0, action_tree->get_theme_icon(SNAME("Keyboard"), SNAME("EditorIcons"))); + } else { + event_item->set_icon(0, action_tree->get_theme_icon(SNAME("KeyboardPhysical"), SNAME("EditorIcons"))); + } + } + + Ref<InputEventMouseButton> mb = event; + if (mb.is_valid()) { + event_item->set_icon(0, action_tree->get_theme_icon(SNAME("Mouse"), SNAME("EditorIcons"))); + } + + Ref<InputEventJoypadButton> jb = event; + if (jb.is_valid()) { + event_item->set_icon(0, action_tree->get_theme_icon(SNAME("JoyButton"), SNAME("EditorIcons"))); + } + + Ref<InputEventJoypadMotion> jm = event; + if (jm.is_valid()) { + event_item->set_icon(0, action_tree->get_theme_icon(SNAME("JoyAxis"), SNAME("EditorIcons"))); + } + // Third Column - Buttons event_item->add_button(2, action_tree->get_theme_icon(SNAME("Edit"), SNAME("EditorIcons")), BUTTON_EDIT_EVENT, false, TTR("Edit Event")); event_item->add_button(2, action_tree->get_theme_icon(SNAME("Remove"), SNAME("EditorIcons")), BUTTON_REMOVE_EVENT, false, TTR("Remove Event")); diff --git a/editor/editor_builders.py b/editor/editor_builders.py index 67d4b8534f..e73fbc6107 100644 --- a/editor/editor_builders.py +++ b/editor/editor_builders.py @@ -5,6 +5,10 @@ All such functions are invoked in a subprocess on Windows to prevent build flaki """ import os import os.path +import shutil +import subprocess +import tempfile +import uuid from platform_methods import subprocess_main @@ -89,10 +93,40 @@ def make_translations_header(target, source, env, category): sorted_paths = sorted(source, key=lambda path: os.path.splitext(os.path.basename(path))[0]) + msgfmt_available = shutil.which("msgfmt") is not None + + if not msgfmt_available: + print("WARNING: msgfmt is not found, using .po files instead of .mo") + xl_names = [] for i in range(len(sorted_paths)): - with open(sorted_paths[i], "rb") as f: - buf = f.read() + if msgfmt_available: + mo_path = os.path.join(tempfile.gettempdir(), uuid.uuid4().hex + ".mo") + cmd = "msgfmt " + sorted_paths[i] + " --no-hash -o " + mo_path + try: + subprocess.Popen(cmd, shell=True, stderr=subprocess.PIPE).communicate() + with open(mo_path, "rb") as f: + buf = f.read() + except OSError as e: + print( + "WARNING: msgfmt execution failed, using .po file instead of .mo: path=%r; [%s] %s" + % (sorted_paths[i], e.__class__.__name__, e) + ) + with open(sorted_paths[i], "rb") as f: + buf = f.read() + finally: + try: + os.remove(mo_path) + except OSError as e: + # Do not fail the entire build if it cannot delete a temporary file + print( + "WARNING: Could not delete temporary .mo file: path=%r; [%s] %s" + % (mo_path, e.__class__.__name__, e) + ) + else: + with open(sorted_paths[i], "rb") as f: + buf = f.read() + decomp_size = len(buf) # Use maximum zlib compression level to further reduce file size # (at the cost of initial build times). diff --git a/editor/editor_dir_dialog.cpp b/editor/editor_dir_dialog.cpp index 32ef87a4ab..866f28c03b 100644 --- a/editor/editor_dir_dialog.cpp +++ b/editor/editor_dir_dialog.cpp @@ -156,10 +156,15 @@ void EditorDirDialog::_make_dir_confirm() { String dir = ti->get_metadata(0); + if (EditorFileSystem::get_singleton()->get_filesystem_path(dir + makedirname->get_text())) { + mkdirerr->set_text(TTR("Could not create folder. File with that name already exists.")); + mkdirerr->popup_centered(); + return; + } + DirAccessRef d = DirAccess::open(dir); ERR_FAIL_COND_MSG(!d, "Cannot open directory '" + dir + "'."); Error err = d->make_dir(makedirname->get_text()); - if (err != OK) { mkdirerr->popup_centered(Size2(250, 80) * EDSCALE); } else { diff --git a/editor/editor_export.cpp b/editor/editor_export.cpp index afb5bd9d4d..a1081fcbfb 100644 --- a/editor/editor_export.cpp +++ b/editor/editor_export.cpp @@ -1760,8 +1760,9 @@ void EditorExportPlatformPC::get_preset_features(const Ref<EditorExportPreset> & } void EditorExportPlatformPC::get_export_options(List<ExportOption> *r_options) { - r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "custom_template/debug", PROPERTY_HINT_GLOBAL_FILE), "")); - r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "custom_template/release", PROPERTY_HINT_GLOBAL_FILE), "")); + String ext_filter = (get_os_name() == "Windows") ? "*.exe" : ""; + r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "custom_template/debug", PROPERTY_HINT_GLOBAL_FILE, ext_filter), "")); + r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "custom_template/release", PROPERTY_HINT_GLOBAL_FILE, ext_filter), "")); r_options->push_back(ExportOption(PropertyInfo(Variant::INT, "debug/export_console_script", PROPERTY_HINT_ENUM, "No,Debug Only,Debug and Release"), 1)); @@ -1794,8 +1795,8 @@ bool EditorExportPlatformPC::can_export(const Ref<EditorExportPreset> &p_preset, // Look for export templates (first official, and if defined custom templates). bool use64 = p_preset->get("binary_format/64_bits"); - bool dvalid = exists_export_template(use64 ? debug_file_64 : debug_file_32, &err); - bool rvalid = exists_export_template(use64 ? release_file_64 : release_file_32, &err); + bool dvalid = exists_export_template(get_template_file_name("debug", use64 ? "64" : "32"), &err); + bool rvalid = exists_export_template(get_template_file_name("release", use64 ? "64" : "32"), &err); if (p_preset->get("custom_template/debug") != "") { dvalid = FileAccess::exists(p_preset->get("custom_template/debug")); @@ -1830,19 +1831,7 @@ Error EditorExportPlatformPC::export_project(const Ref<EditorExportPreset> &p_pr template_path = template_path.strip_edges(); if (template_path.is_empty()) { - if (p_preset->get("binary_format/64_bits")) { - if (p_debug) { - template_path = find_export_template(debug_file_64); - } else { - template_path = find_export_template(release_file_64); - } - } else { - if (p_debug) { - template_path = find_export_template(debug_file_32); - } else { - template_path = find_export_template(release_file_32); - } - } + template_path = find_export_template(get_template_file_name(p_debug ? "debug" : "release", p_preset->get("binary_format/64_bits") ? "64" : "32")); } if (!template_path.is_empty() && !FileAccess::exists(template_path)) { @@ -1878,7 +1867,6 @@ Error EditorExportPlatformPC::export_project(const Ref<EditorExportPreset> &p_pr if (err == OK && !so_files.is_empty()) { // If shared object files, copy them. - da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM); for (int i = 0; i < so_files.size() && err == OK; i++) { String src_path = ProjectSettings::get_singleton()->globalize_path(so_files[i].path); String target_path; @@ -1922,22 +1910,6 @@ void EditorExportPlatformPC::set_logo(const Ref<Texture2D> &p_logo) { logo = p_logo; } -void EditorExportPlatformPC::set_release_64(const String &p_file) { - release_file_64 = p_file; -} - -void EditorExportPlatformPC::set_release_32(const String &p_file) { - release_file_32 = p_file; -} - -void EditorExportPlatformPC::set_debug_64(const String &p_file) { - debug_file_64 = p_file; -} - -void EditorExportPlatformPC::set_debug_32(const String &p_file) { - debug_file_32 = p_file; -} - void EditorExportPlatformPC::get_platform_features(List<String> *r_features) { r_features->push_back("pc"); //all pcs support "pc" r_features->push_back("s3tc"); //all pcs support "s3tc" compression diff --git a/editor/editor_export.h b/editor/editor_export.h index 108abab29b..7c61e7cff6 100644 --- a/editor/editor_export.h +++ b/editor/editor_export.h @@ -426,11 +426,6 @@ private: String name; String os_name; - String release_file_32; - String release_file_64; - String debug_file_32; - String debug_file_64; - int chmod_flags = -1; public: @@ -445,17 +440,13 @@ public: virtual bool can_export(const Ref<EditorExportPreset> &p_preset, String &r_error, bool &r_missing_templates) const override; virtual Error export_project(const Ref<EditorExportPreset> &p_preset, bool p_debug, const String &p_path, int p_flags = 0) override; virtual Error sign_shared_object(const Ref<EditorExportPreset> &p_preset, bool p_debug, const String &p_path); + virtual String get_template_file_name(const String &p_target, const String &p_arch) const = 0; void set_name(const String &p_name); void set_os_name(const String &p_name); void set_logo(const Ref<Texture2D> &p_logo); - void set_release_64(const String &p_file); - void set_release_32(const String &p_file); - void set_debug_64(const String &p_file); - void set_debug_32(const String &p_file); - void add_platform_feature(const String &p_feature); virtual void get_platform_features(List<String> *r_features) override; virtual void resolve_platform_feature_priorities(const Ref<EditorExportPreset> &p_preset, Set<String> &p_features) override; diff --git a/editor/editor_file_dialog.cpp b/editor/editor_file_dialog.cpp index 31f2f24066..fe19e73db9 100644 --- a/editor/editor_file_dialog.cpp +++ b/editor/editor_file_dialog.cpp @@ -781,12 +781,19 @@ void EditorFileDialog::update_file_list() { continue; } - if (show_hidden_files || !dir_access->current_is_hidden()) { + if (show_hidden_files) { if (!dir_access->current_is_dir()) { files.push_back(item); } else { dirs.push_back(item); } + } else if (!dir_access->current_is_hidden()) { + String full_path = cdir == "res://" ? item : dir_access->get_current_dir() + "/" + item; + if (dir_access->current_is_dir() && !EditorFileSystem::_should_skip_directory(full_path)) { + dirs.push_back(item); + } else { + files.push_back(item); + } } item = dir_access->get_next(); } @@ -1092,6 +1099,13 @@ EditorFileDialog::Access EditorFileDialog::get_access() const { } void EditorFileDialog::_make_dir_confirm() { + if (EditorFileSystem::get_singleton()->get_filesystem_path(makedirname->get_text().strip_edges())) { + error_dialog->set_text(TTR("Could not create folder. File with that name already exists.")); + error_dialog->popup_centered(Size2(250, 50) * EDSCALE); + makedirname->set_text(""); // Reset label. + return; + } + Error err = dir_access->make_dir(makedirname->get_text().strip_edges()); if (err == OK) { dir_access->change_dir(makedirname->get_text().strip_edges()); diff --git a/editor/editor_inspector.cpp b/editor/editor_inspector.cpp index 9601eaf5f5..18c9a9f495 100644 --- a/editor/editor_inspector.cpp +++ b/editor/editor_inspector.cpp @@ -40,6 +40,7 @@ #include "editor/editor_scale.h" #include "editor/editor_settings.h" #include "multi_node_edit.h" +#include "scene/gui/center_container.h" #include "scene/property_utils.h" #include "scene/resources/packed_scene.h" @@ -2506,7 +2507,7 @@ void EditorInspector::update_tree() { List<PropertyInfo>::Element *N = E_property->next(); bool valid = true; while (N) { - if (N->get().usage & PROPERTY_USAGE_EDITOR && (!restrict_to_basic || (N->get().usage & PROPERTY_USAGE_EDITOR_BASIC_SETTING))) { + if (!N->get().name.begins_with("metadata/_") && N->get().usage & PROPERTY_USAGE_EDITOR && (!restrict_to_basic || (N->get().usage & PROPERTY_USAGE_EDITOR_BASIC_SETTING))) { break; } if (N->get().usage & PROPERTY_USAGE_CATEGORY) { @@ -2580,7 +2581,7 @@ void EditorInspector::update_tree() { continue; - } else if (!(p.usage & PROPERTY_USAGE_EDITOR) || _is_property_disabled_by_feature_profile(p.name) || (restrict_to_basic && !(p.usage & PROPERTY_USAGE_EDITOR_BASIC_SETTING))) { + } else if (p.name.begins_with("metadata/_") || !(p.usage & PROPERTY_USAGE_EDITOR) || _is_property_disabled_by_feature_profile(p.name) || (restrict_to_basic && !(p.usage & PROPERTY_USAGE_EDITOR_BASIC_SETTING))) { // Ignore properties that are not supposed to be in the inspector. continue; } @@ -2915,7 +2916,7 @@ void EditorInspector::update_tree() { ep->set_checked(checked); ep->set_keying(keying); ep->set_read_only(property_read_only); - ep->set_deletable(deletable_properties); + ep->set_deletable(deletable_properties || p.name.begins_with("metadata/")); } current_vbox->add_child(F.property_editor); @@ -2956,6 +2957,15 @@ void EditorInspector::update_tree() { } } + if (!hide_metadata) { + Button *add_md = memnew(Button); + add_md->set_text(TTR("Add Metadata")); + add_md->set_focus_mode(Control::FOCUS_NONE); + add_md->set_icon(get_theme_icon("Add", "EditorIcons")); + add_md->connect("pressed", callable_mp(this, &EditorInspector::_show_add_meta_dialog)); + main_vbox->add_child(add_md); + } + // Get the lists of to add at the end. for (Ref<EditorInspectorPlugin> &ped : valid_plugins) { ped->parse_end(object); @@ -3055,6 +3065,11 @@ void EditorInspector::set_hide_script(bool p_hide) { update_tree(); } +void EditorInspector::set_hide_metadata(bool p_hide) { + hide_metadata = p_hide; + update_tree(); +} + void EditorInspector::set_use_filter(bool p_use) { use_filter = p_use; update_tree(); @@ -3323,6 +3338,14 @@ void EditorInspector::_property_deleted(const String &p_path) { return; } + if (p_path.begins_with("metadata/")) { + String name = p_path.replace_first("metadata/", ""); + undo_redo->create_action(vformat(TTR("Remove metadata %s"), name)); + undo_redo->add_do_method(object, "remove_meta", name); + undo_redo->add_undo_method(object, "set_meta", name, object->get_meta(name)); + undo_redo->commit_action(); + } + emit_signal(SNAME("property_deleted"), p_path); } @@ -3650,6 +3673,81 @@ Variant EditorInspector::get_property_clipboard() const { return property_clipboard; } +void EditorInspector::_add_meta_confirm() { + String name = add_meta_name->get_text(); + + object->editor_set_section_unfold("metadata", true); // Ensure metadata is unfolded when adding a new metadata. + + Variant defval; + Callable::CallError ce; + Variant::construct(Variant::Type(add_meta_type->get_selected_id()), defval, nullptr, 0, ce); + undo_redo->create_action(vformat(TTR("Add metadata %s"), name)); + undo_redo->add_do_method(object, "set_meta", name, defval); + undo_redo->add_undo_method(object, "remove_meta", name); + undo_redo->commit_action(); +} + +void EditorInspector::_check_meta_name(String name) { + String error; + + if (name == "") { + error = TTR("Metadata can't be empty."); + } else if (!name.is_valid_identifier()) { + error = TTR("Invalid metadata identifier."); + } else if (object->has_meta(name)) { + error = TTR("Metadata already exists."); + } + + if (error != "") { + add_meta_error->add_theme_color_override("font_color", get_theme_color(SNAME("error_color"), SNAME("Editor"))); + add_meta_error->set_text(error); + add_meta_dialog->get_ok_button()->set_disabled(true); + } else { + add_meta_error->add_theme_color_override("font_color", get_theme_color(SNAME("success_color"), SNAME("Editor"))); + add_meta_error->set_text(TTR("Metadata name is valid.")); + add_meta_dialog->get_ok_button()->set_disabled(false); + } +} + +void EditorInspector::_show_add_meta_dialog() { + if (!add_meta_dialog) { + add_meta_dialog = memnew(ConfirmationDialog); + add_meta_dialog->set_title(TTR("Add Metadata Property")); + VBoxContainer *vbc = memnew(VBoxContainer); + add_meta_dialog->add_child(vbc); + HBoxContainer *hbc = memnew(HBoxContainer); + vbc->add_child(hbc); + hbc->add_child(memnew(Label(TTR("Name:")))); + add_meta_name = memnew(LineEdit); + add_meta_name->set_custom_minimum_size(Size2(200 * EDSCALE, 1)); + hbc->add_child(add_meta_name); + hbc->add_child(memnew(Label(TTR("Type:")))); + add_meta_type = memnew(OptionButton); + for (int i = 0; i < Variant::VARIANT_MAX; i++) { + if (i == Variant::NIL || i == Variant::RID || i == Variant::CALLABLE || i == Variant::SIGNAL) { + continue; //not editable by inspector. + } + String type = i == Variant::OBJECT ? String("Resource") : Variant::get_type_name(Variant::Type(i)); + + add_meta_type->add_icon_item(get_theme_icon(type, "EditorIcons"), type, i); + } + hbc->add_child(add_meta_type); + add_meta_dialog->get_ok_button()->set_text(TTR("Add")); + add_child(add_meta_dialog); + add_meta_dialog->register_text_enter(add_meta_name); + add_meta_dialog->connect("confirmed", callable_mp(this, &EditorInspector::_add_meta_confirm)); + add_meta_error = memnew(Label); + vbc->add_child(add_meta_error); + + add_meta_name->connect("text_changed", callable_mp(this, &EditorInspector::_check_meta_name)); + } + + add_meta_dialog->popup_centered(); + add_meta_name->set_text(""); + _check_meta_name(""); + add_meta_name->grab_focus(); +} + void EditorInspector::_bind_methods() { ClassDB::bind_method("_edit_request_change", &EditorInspector::_edit_request_change); diff --git a/editor/editor_inspector.h b/editor/editor_inspector.h index 3c482a07e7..d625a8043c 100644 --- a/editor/editor_inspector.h +++ b/editor/editor_inspector.h @@ -35,6 +35,7 @@ #include "scene/gui/button.h" #include "scene/gui/dialogs.h" #include "scene/gui/line_edit.h" +#include "scene/gui/option_button.h" #include "scene/gui/panel_container.h" #include "scene/gui/scroll_container.h" #include "scene/gui/texture_rect.h" @@ -445,6 +446,7 @@ class EditorInspector : public ScrollContainer { LineEdit *search_box; bool show_categories = false; bool hide_script = true; + bool hide_metadata = true; bool use_doc_hints = false; bool capitalize_paths = true; bool use_filter = false; @@ -511,6 +513,15 @@ class EditorInspector : public ScrollContainer { void _update_inspector_bg(); + ConfirmationDialog *add_meta_dialog = nullptr; + LineEdit *add_meta_name = nullptr; + OptionButton *add_meta_type = nullptr; + Label *add_meta_error = nullptr; + + void _add_meta_confirm(); + void _show_add_meta_dialog(); + void _check_meta_name(String name); + protected: static void _bind_methods(); void _notification(int p_what); @@ -541,6 +552,7 @@ public: void set_show_categories(bool p_show); void set_use_doc_hints(bool p_enable); void set_hide_script(bool p_hide); + void set_hide_metadata(bool p_hide); void set_use_filter(bool p_use); void register_text_enter(Node *p_line_edit); diff --git a/editor/editor_resource_picker.cpp b/editor/editor_resource_picker.cpp index a7b2a4cfa6..53f1a689d6 100644 --- a/editor/editor_resource_picker.cpp +++ b/editor/editor_resource_picker.cpp @@ -327,6 +327,13 @@ void EditorResourcePicker::_edit_menu_cbk(int p_which) { case OBJ_MENU_PASTE: { edited_resource = EditorSettings::get_singleton()->get_resource_clipboard(); + if (edited_resource->is_built_in() && EditorNode::get_singleton()->get_edited_scene() && + edited_resource->get_path().get_slice("::", 0) != EditorNode::get_singleton()->get_edited_scene()->get_scene_file_path()) { + // Automatically make resource unique if it belongs to another scene. + _edit_menu_cbk(OBJ_MENU_MAKE_UNIQUE); + return; + } + emit_signal(SNAME("resource_changed"), edited_resource); _update_resource(); } break; diff --git a/editor/editor_settings.cpp b/editor/editor_settings.cpp index 08cc957ec7..1364f7891e 100644 --- a/editor/editor_settings.cpp +++ b/editor/editor_settings.cpp @@ -422,9 +422,9 @@ void EditorSettings::_load_defaults(Ref<ConfigFile> p_extra_config) { #endif EDITOR_SETTING(Variant::INT, PROPERTY_HINT_ENUM, "interface/editor/font_subpixel_positioning", 1, "Disabled,Auto,One half of a pixel,One quarter of a pixel") - EDITOR_SETTING(Variant::STRING, PROPERTY_HINT_GLOBAL_FILE, "interface/editor/main_font", "", "*.ttf,*.otf") - EDITOR_SETTING(Variant::STRING, PROPERTY_HINT_GLOBAL_FILE, "interface/editor/main_font_bold", "", "*.ttf,*.otf") - EDITOR_SETTING(Variant::STRING, PROPERTY_HINT_GLOBAL_FILE, "interface/editor/code_font", "", "*.ttf,*.otf") + EDITOR_SETTING(Variant::STRING, PROPERTY_HINT_GLOBAL_FILE, "interface/editor/main_font", "", "*.ttf,*.otf,*.woff,*.woff2,*.pfb,*.pfm") + EDITOR_SETTING(Variant::STRING, PROPERTY_HINT_GLOBAL_FILE, "interface/editor/main_font_bold", "", "*.ttf,*.otf,*.woff,*.woff2,*.pfb,*.pfm") + EDITOR_SETTING(Variant::STRING, PROPERTY_HINT_GLOBAL_FILE, "interface/editor/code_font", "", "*.ttf,*.otf,*.woff,*.woff2,*.pfb,*.pfm") EDITOR_SETTING_USAGE(Variant::FLOAT, PROPERTY_HINT_RANGE, "interface/editor/low_processor_mode_sleep_usec", 6900, "1,100000,1", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_RESTART_IF_CHANGED) // Default unfocused usec sleep is for 10 FPS. Allow an unfocused FPS limit // as low as 1 FPS for those who really need low power usage (but don't need @@ -711,7 +711,7 @@ void EditorSettings::_load_defaults(Ref<ConfigFile> p_extra_config) { EDITOR_SETTING(Variant::INT, PROPERTY_HINT_RANGE, "network/debug/remote_port", 6007, "1,65535,1") // SSL - EDITOR_SETTING(Variant::STRING, PROPERTY_HINT_GLOBAL_FILE, "network/ssl/editor_ssl_certificates", _SYSTEM_CERTS_PATH, "*.crt,*.pem") + EDITOR_SETTING_USAGE(Variant::STRING, PROPERTY_HINT_GLOBAL_FILE, "network/ssl/editor_ssl_certificates", _SYSTEM_CERTS_PATH, "*.crt,*.pem", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_RESTART_IF_CHANGED); // Profiler _initial_set("debugger/profiler_frame_history_size", 600); diff --git a/editor/editor_themes.cpp b/editor/editor_themes.cpp index 28feac5d2b..1fea759a90 100644 --- a/editor/editor_themes.cpp +++ b/editor/editor_themes.cpp @@ -288,17 +288,40 @@ void editor_register_and_generate_icons(Ref<Theme> p_theme, bool p_dark_theme = dark_icon_color_dictionary[Color::html("#5fff97")] = success_color; dark_icon_color_dictionary[Color::html("#ffdd65")] = warning_color; + // Use the accent color for some icons (checkbox, radio, toggle, etc.). + Dictionary accent_color_icon_color_dictionary; + Set<StringName> accent_color_icons; + + const Color accent_color = p_theme->get_color(SNAME("accent_color"), SNAME("Editor")); + accent_color_icon_color_dictionary[Color::html("699ce8")] = accent_color; + if (accent_color.get_luminance() > 0.75) { + accent_color_icon_color_dictionary[Color::html("ffffff")] = Color(0.2, 0.2, 0.2); + } + + accent_color_icons.insert("GuiChecked"); + accent_color_icons.insert("GuiRadioChecked"); + accent_color_icons.insert("GuiIndeterminate"); + accent_color_icons.insert("GuiToggleOn"); + accent_color_icons.insert("GuiToggleOnMirrored"); + accent_color_icons.insert("PlayOverlay"); + // Generate icons. if (!p_only_thumbs) { for (int i = 0; i < editor_icons_count; i++) { - float saturation = p_icon_saturation; + Ref<ImageTexture> icon; - if (strcmp(editor_icons_names[i], "DefaultProjectIcon") == 0 || strcmp(editor_icons_names[i], "Godot") == 0 || strcmp(editor_icons_names[i], "Logo") == 0) { - saturation = 1.0; - } + if (accent_color_icons.has(editor_icons_names[i])) { + icon = editor_generate_icon(i, true, EDSCALE, 1.0, accent_color_icon_color_dictionary); + } else { + float saturation = p_icon_saturation; - const int is_exception = exceptions.has(editor_icons_names[i]); - const Ref<ImageTexture> icon = editor_generate_icon(i, !is_exception, EDSCALE, saturation, dark_icon_color_dictionary); + if (strcmp(editor_icons_names[i], "DefaultProjectIcon") == 0 || strcmp(editor_icons_names[i], "Godot") == 0 || strcmp(editor_icons_names[i], "Logo") == 0) { + saturation = 1.0; + } + + const int is_exception = exceptions.has(editor_icons_names[i]); + icon = editor_generate_icon(i, !is_exception, EDSCALE, saturation, dark_icon_color_dictionary); + } p_theme->set_icon(editor_icons_names[i], SNAME("EditorIcons"), icon); } @@ -514,8 +537,8 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) { // Register icons + font - // The resolution and the icon color (dark_theme bool) has not changed, so we do not regenerate the icons. - if (p_theme != nullptr && fabs(p_theme->get_constant(SNAME("scale"), SNAME("Editor")) - EDSCALE) < 0.00001 && (bool)p_theme->get_constant(SNAME("dark_theme"), SNAME("Editor")) == dark_theme && prev_icon_saturation == icon_saturation) { + // The editor scale, icon color (dark_theme bool), icon saturation, and accent color has not changed, so we do not regenerate the icons. + if (p_theme != nullptr && fabs(p_theme->get_constant(SNAME("scale"), SNAME("Editor")) - EDSCALE) < 0.00001 && (bool)p_theme->get_constant(SNAME("dark_theme"), SNAME("Editor")) == dark_theme && prev_icon_saturation == icon_saturation && p_theme->get_color(SNAME("accent_color"), SNAME("Editor")) == accent_color) { // Register already generated icons. for (int i = 0; i < editor_icons_count; i++) { theme->set_icon(editor_icons_names[i], SNAME("EditorIcons"), p_theme->get_icon(editor_icons_names[i], SNAME("EditorIcons"))); @@ -612,7 +635,8 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) { style_tab_selected->set_border_width_all(0); style_tab_selected->set_border_width(SIDE_TOP, Math::round(2 * EDSCALE)); // Make the highlight line prominent, but not too prominent as to not be distracting. - style_tab_selected->set_border_color(dark_color_2.lerp(accent_color, 0.75)); + Color tab_highlight = dark_color_2.lerp(accent_color, 0.75); + style_tab_selected->set_border_color(tab_highlight); // Don't round the top corners to avoid creating a small blank space between the tabs and the main panel. // This also makes the top highlight look better. style_tab_selected->set_corner_radius_all(0); @@ -1056,17 +1080,19 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) { theme->set_stylebox("tab_selected", "TabBar", style_tab_selected); theme->set_stylebox("tab_unselected", "TabBar", style_tab_unselected); theme->set_stylebox("tab_disabled", "TabBar", style_tab_disabled); + theme->set_stylebox("button_pressed", "TabBar", style_menu); + theme->set_stylebox("button_highlight", "TabBar", style_menu); + theme->set_stylebox("SceneTabFG", "EditorStyles", style_tab_selected); + theme->set_stylebox("SceneTabBG", "EditorStyles", style_tab_unselected); theme->set_color("font_selected_color", "TabContainer", font_color); theme->set_color("font_unselected_color", "TabContainer", font_disabled_color); theme->set_color("font_selected_color", "TabBar", font_color); theme->set_color("font_unselected_color", "TabBar", font_disabled_color); + theme->set_color("drop_mark_color", "TabContainer", tab_highlight); + theme->set_color("drop_mark_color", "TabBar", tab_highlight); theme->set_icon("menu", "TabContainer", theme->get_icon(SNAME("GuiTabMenu"), SNAME("EditorIcons"))); theme->set_icon("menu_highlight", "TabContainer", theme->get_icon(SNAME("GuiTabMenuHl"), SNAME("EditorIcons"))); - theme->set_stylebox("SceneTabFG", "EditorStyles", style_tab_selected); - theme->set_stylebox("SceneTabBG", "EditorStyles", style_tab_unselected); theme->set_icon("close", "TabBar", theme->get_icon(SNAME("GuiClose"), SNAME("EditorIcons"))); - theme->set_stylebox("button_pressed", "TabBar", style_menu); - theme->set_stylebox("button_highlight", "TabBar", style_menu); theme->set_icon("increment", "TabContainer", theme->get_icon(SNAME("GuiScrollArrowRight"), SNAME("EditorIcons"))); theme->set_icon("decrement", "TabContainer", theme->get_icon(SNAME("GuiScrollArrowLeft"), SNAME("EditorIcons"))); theme->set_icon("increment", "TabBar", theme->get_icon(SNAME("GuiScrollArrowRight"), SNAME("EditorIcons"))); @@ -1075,6 +1101,8 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) { theme->set_icon("decrement_highlight", "TabBar", theme->get_icon(SNAME("GuiScrollArrowLeftHl"), SNAME("EditorIcons"))); theme->set_icon("increment_highlight", "TabContainer", theme->get_icon(SNAME("GuiScrollArrowRightHl"), SNAME("EditorIcons"))); theme->set_icon("decrement_highlight", "TabContainer", theme->get_icon(SNAME("GuiScrollArrowLeftHl"), SNAME("EditorIcons"))); + theme->set_icon("drop_mark", "TabContainer", theme->get_icon(SNAME("GuiTabDropMark"), SNAME("EditorIcons"))); + theme->set_icon("drop_mark", "TabBar", theme->get_icon(SNAME("GuiTabDropMark"), SNAME("EditorIcons"))); theme->set_constant("hseparation", "TabBar", 4 * EDSCALE); // Content of each tab diff --git a/editor/filesystem_dock.cpp b/editor/filesystem_dock.cpp index 038cc2ab2f..2100a787c8 100644 --- a/editor/filesystem_dock.cpp +++ b/editor/filesystem_dock.cpp @@ -1413,6 +1413,12 @@ void FileSystemDock::_make_dir_confirm() { if (!directory.ends_with("/")) { directory = directory.get_base_dir(); } + + if (EditorFileSystem::get_singleton()->get_filesystem_path(directory + dir_name)) { + EditorNode::get_singleton()->show_warning(TTR("Could not create folder. File with that name already exists.")); + return; + } + print_verbose("Making folder " + dir_name + " in " + directory); DirAccessRef da = DirAccess::create(DirAccess::ACCESS_RESOURCES); Error err = da->change_dir(directory); diff --git a/editor/groups_editor.cpp b/editor/groups_editor.cpp index 4b3a7a8313..37d535aed2 100644 --- a/editor/groups_editor.cpp +++ b/editor/groups_editor.cpp @@ -416,6 +416,8 @@ void GroupDialog::_bind_methods() { ClassDB::bind_method("_rename_group_item", &GroupDialog::_rename_group_item); + ClassDB::bind_method("_group_selected", &GroupDialog::_group_selected); + ADD_SIGNAL(MethodInfo("group_edited")); } diff --git a/editor/icons/GuiTabDropMark.svg b/editor/icons/GuiTabDropMark.svg new file mode 100644 index 0000000000..c85b165c71 --- /dev/null +++ b/editor/icons/GuiTabDropMark.svg @@ -0,0 +1 @@ +<svg height="32" viewBox="0 0 16 32" width="16" xmlns="http://www.w3.org/2000/svg"><path d="m5 2h6v30h-6z" fill="#fff"/></svg> diff --git a/editor/import/editor_import_collada.cpp b/editor/import/editor_import_collada.cpp index 3b5a82b2c3..69fa64c24c 100644 --- a/editor/import/editor_import_collada.cpp +++ b/editor/import/editor_import_collada.cpp @@ -994,13 +994,12 @@ Error ColladaImport::_create_mesh_surfaces(bool p_optimize, Ref<ImporterMesh> &p Array a = p_morph_meshes[mi]->get_surface_arrays(surface); //add valid weight and bone arrays if they exist, TODO check if they are unique to shape (generally not) - if (has_weights) { - a[Mesh::ARRAY_WEIGHTS] = d[Mesh::ARRAY_WEIGHTS]; - a[Mesh::ARRAY_BONES] = d[Mesh::ARRAY_BONES]; + // Enforce blend shape mask array format + for (int mj = 0; mj < Mesh::ARRAY_MAX; mj++) { + if (!(Mesh::ARRAY_FORMAT_BLEND_SHAPE_MASK & (1 << mj))) { + a[mj] = Variant(); + } } - - a[Mesh::ARRAY_INDEX] = Variant(); - //a.resize(Mesh::ARRAY_MAX); //no need for index mr.push_back(a); } diff --git a/editor/inspector_dock.cpp b/editor/inspector_dock.cpp index 087e51b0cb..9ebea79435 100644 --- a/editor/inspector_dock.cpp +++ b/editor/inspector_dock.cpp @@ -679,6 +679,7 @@ InspectorDock::InspectorDock(EditorData &p_editor_data) { inspector->set_v_size_flags(Control::SIZE_EXPAND_FILL); inspector->set_use_doc_hints(true); inspector->set_hide_script(false); + inspector->set_hide_metadata(false); inspector->set_enable_capitalize_paths(bool(EDITOR_GET("interface/inspector/capitalize_properties"))); inspector->set_use_folding(!bool(EDITOR_GET("interface/inspector/disable_folding"))); inspector->register_text_enter(search); diff --git a/editor/plugins/asset_library_editor_plugin.cpp b/editor/plugins/asset_library_editor_plugin.cpp index 1468d63daf..20bd145299 100644 --- a/editor/plugins/asset_library_editor_plugin.cpp +++ b/editor/plugins/asset_library_editor_plugin.cpp @@ -997,7 +997,7 @@ HBoxContainer *EditorAssetLibrary::_make_pages(int p_page, int p_page_count, int hbc->add_theme_constant_override("separation", 5 * EDSCALE); Button *first = memnew(Button); - first->set_text(TTR("First")); + first->set_text(TTR("First", "Pagination")); if (p_page != 0) { first->connect("pressed", callable_mp(this, &EditorAssetLibrary::_search), varray(0)); } else { @@ -1007,7 +1007,7 @@ HBoxContainer *EditorAssetLibrary::_make_pages(int p_page, int p_page_count, int hbc->add_child(first); Button *prev = memnew(Button); - prev->set_text(TTR("Previous")); + prev->set_text(TTR("Previous", "Pagination")); if (p_page > 0) { prev->connect("pressed", callable_mp(this, &EditorAssetLibrary::_search), varray(p_page - 1)); } else { @@ -1037,7 +1037,7 @@ HBoxContainer *EditorAssetLibrary::_make_pages(int p_page, int p_page_count, int } Button *next = memnew(Button); - next->set_text(TTR("Next")); + next->set_text(TTR("Next", "Pagination")); if (p_page < p_page_count - 1) { next->connect("pressed", callable_mp(this, &EditorAssetLibrary::_search), varray(p_page + 1)); } else { @@ -1048,7 +1048,7 @@ HBoxContainer *EditorAssetLibrary::_make_pages(int p_page, int p_page_count, int hbc->add_child(next); Button *last = memnew(Button); - last->set_text(TTR("Last")); + last->set_text(TTR("Last", "Pagination")); if (p_page != p_page_count - 1) { last->connect("pressed", callable_mp(this, &EditorAssetLibrary::_search), varray(p_page_count - 1)); } else { diff --git a/editor/plugins/mesh_library_editor_plugin.cpp b/editor/plugins/mesh_library_editor_plugin.cpp index 41e3471a78..423ec5f4ed 100644 --- a/editor/plugins/mesh_library_editor_plugin.cpp +++ b/editor/plugins/mesh_library_editor_plugin.cpp @@ -271,7 +271,7 @@ MeshLibraryEditor::MeshLibraryEditor() { menu = memnew(MenuButton); Node3DEditor::get_singleton()->add_control_to_menu_panel(menu); menu->set_position(Point2(1, 1)); - menu->set_text(TTR("Mesh Library")); + menu->set_text(TTR("MeshLibrary")); menu->set_icon(EditorNode::get_singleton()->get_gui_base()->get_theme_icon(SNAME("MeshLibrary"), SNAME("EditorIcons"))); menu->get_popup()->add_item(TTR("Add Item"), MENU_OPTION_ADD_ITEM); menu->get_popup()->add_item(TTR("Remove Selected Item"), MENU_OPTION_REMOVE_ITEM); diff --git a/editor/plugins/ot_features_plugin.cpp b/editor/plugins/ot_features_plugin.cpp index 9cd428a2d4..27b35d803c 100644 --- a/editor/plugins/ot_features_plugin.cpp +++ b/editor/plugins/ot_features_plugin.cpp @@ -96,10 +96,19 @@ OpenTypeFeaturesEditor::OpenTypeFeaturesEditor() { /*************************************************************************/ void OpenTypeFeaturesAdd::_add_feature(int p_option) { - get_edited_object()->set("opentype_features/" + TS->tag_to_name(p_option), 1); + edited_object->set("opentype_features/" + TS->tag_to_name(p_option), 1); } -void OpenTypeFeaturesAdd::update_property() { +void OpenTypeFeaturesAdd::_features_menu() { + Size2 size = get_size(); + menu->set_position(get_screen_position() + Size2(0, size.height * get_global_transform().get_scale().y)); + menu->reset_size(); + menu->popup(); +} + +void OpenTypeFeaturesAdd::setup(Object *p_object) { + edited_object = p_object; + menu->clear(); menu_ss->clear(); menu_cv->clear(); @@ -107,7 +116,7 @@ void OpenTypeFeaturesAdd::update_property() { bool have_ss = false; bool have_cv = false; bool have_cu = false; - Dictionary features = Object::cast_to<Control>(get_edited_object())->get_theme_font(SNAME("font"))->get_feature_list(); + Dictionary features = Object::cast_to<Control>(edited_object)->get_theme_font(SNAME("font"))->get_feature_list(); for (const Variant *ftr = features.next(nullptr); ftr != nullptr; ftr = features.next(ftr)) { String ftr_name = TS->tag_to_name(*ftr); if (ftr_name.begins_with("stylistic_set_")) { @@ -134,20 +143,11 @@ void OpenTypeFeaturesAdd::update_property() { } } -void OpenTypeFeaturesAdd::_features_menu() { - Size2 size = get_size(); - menu->set_position(get_screen_position() + Size2(0, size.height * get_global_transform().get_scale().y)); - menu->reset_size(); - menu->popup(); -} - void OpenTypeFeaturesAdd::_notification(int p_what) { switch (p_what) { case NOTIFICATION_THEME_CHANGED: case NOTIFICATION_ENTER_TREE: { - set_label(""); - button->set_icon(get_theme_icon(SNAME("Add"), SNAME("EditorIcons"))); - button->set_size(get_theme_icon(SNAME("Add"), SNAME("EditorIcons"))->get_size()); + set_icon(get_theme_icon(SNAME("Add"), SNAME("EditorIcons"))); } break; } } @@ -156,6 +156,8 @@ void OpenTypeFeaturesAdd::_bind_methods() { } OpenTypeFeaturesAdd::OpenTypeFeaturesAdd() { + set_text(TTR("Add Feature...")); + menu = memnew(PopupMenu); add_child(menu); @@ -171,13 +173,7 @@ OpenTypeFeaturesAdd::OpenTypeFeaturesAdd() { menu_cu->set_name("CUMenu"); menu->add_child(menu_cu); - button = memnew(Button); - button->set_flat(true); - button->set_text(RTR("Add feature...")); - button->set_tooltip(RTR("Add feature...")); - add_child(button); - - button->connect("pressed", callable_mp(this, &OpenTypeFeaturesAdd::_features_menu)); + connect("pressed", callable_mp(this, &OpenTypeFeaturesAdd::_features_menu)); menu->connect("id_pressed", callable_mp(this, &OpenTypeFeaturesAdd::_add_feature)); menu_cv->connect("id_pressed", callable_mp(this, &OpenTypeFeaturesAdd::_add_feature)); menu_ss->connect("id_pressed", callable_mp(this, &OpenTypeFeaturesAdd::_add_feature)); @@ -193,7 +189,8 @@ bool EditorInspectorPluginOpenTypeFeatures::can_handle(Object *p_object) { bool EditorInspectorPluginOpenTypeFeatures::parse_property(Object *p_object, const Variant::Type p_type, const String &p_path, const PropertyHint p_hint, const String &p_hint_text, const uint32_t p_usage, const bool p_wide) { if (p_path == "opentype_features/_new") { OpenTypeFeaturesAdd *editor = memnew(OpenTypeFeaturesAdd); - add_property_editor(p_path, editor); + editor->setup(p_object); + add_custom_control(editor); return true; } else if (p_path.begins_with("opentype_features")) { OpenTypeFeaturesEditor *editor = memnew(OpenTypeFeaturesEditor); diff --git a/editor/plugins/ot_features_plugin.h b/editor/plugins/ot_features_plugin.h index 8c38d888de..fcbc8692ca 100644 --- a/editor/plugins/ot_features_plugin.h +++ b/editor/plugins/ot_features_plugin.h @@ -56,10 +56,10 @@ public: /*************************************************************************/ -class OpenTypeFeaturesAdd : public EditorProperty { - GDCLASS(OpenTypeFeaturesAdd, EditorProperty); +class OpenTypeFeaturesAdd : public Button { + GDCLASS(OpenTypeFeaturesAdd, Button); - Button *button = nullptr; + Object *edited_object = nullptr; PopupMenu *menu = nullptr; PopupMenu *menu_ss = nullptr; PopupMenu *menu_cv = nullptr; @@ -73,7 +73,7 @@ protected: static void _bind_methods(); public: - virtual void update_property() override; + void setup(Object *p_object); OpenTypeFeaturesAdd(); }; diff --git a/editor/project_manager.cpp b/editor/project_manager.cpp index d011d7a7e7..cd95f97286 100644 --- a/editor/project_manager.cpp +++ b/editor/project_manager.cpp @@ -2872,10 +2872,17 @@ ProjectManager::ProjectManager() { if (scale_factor > 1.0) { Vector2i window_size = DisplayServer::get_singleton()->window_get_size(); Vector2i screen_size = DisplayServer::get_singleton()->screen_get_size(); - window_size *= scale_factor; + Vector2i screen_position = DisplayServer::get_singleton()->screen_get_position(); + + // Consider the editor display scale. + window_size.x = round((float)window_size.x * scale_factor); + window_size.y = round((float)window_size.y * scale_factor); + + // Make the window centered on the screen. Vector2i window_position; - window_position.x = (screen_size.x - window_size.x) / 2; - window_position.y = (screen_size.y - window_size.y) / 2; + window_position.x = screen_position.x + (screen_size.x - window_size.x) / 2; + window_position.y = screen_position.y + (screen_size.y - window_size.y) / 2; + DisplayServer::get_singleton()->window_set_size(window_size); DisplayServer::get_singleton()->window_set_position(window_position); } diff --git a/modules/basis_universal/SCsub b/modules/basis_universal/SCsub index 1f9fde966d..a3bd85089d 100644 --- a/modules/basis_universal/SCsub +++ b/modules/basis_universal/SCsub @@ -13,16 +13,15 @@ thirdparty_obj = [] thirdparty_dir = "#thirdparty/basis_universal/" # Sync list with upstream CMakeLists.txt encoder_sources = [ - "apg_bmp.c", - "basisu_astc_decomp.cpp", + "basisu_uastc_enc.cpp", "basisu_backend.cpp", "basisu_basis_file.cpp", "basisu_bc7enc.cpp", + "basisu_opencl.cpp", "basisu_comp.cpp", "basisu_enc.cpp", "basisu_etc.cpp", "basisu_frontend.cpp", - "basisu_global_selector_palette_helpers.cpp", "basisu_gpu_texture.cpp", "basisu_kernels_sse.cpp", "basisu_pvrtc1_4.cpp", @@ -31,7 +30,7 @@ encoder_sources = [ "basisu_ssim.cpp", "basisu_uastc_enc.cpp", "jpgd.cpp", - "lodepng.cpp", + "pvpngreader.cpp", ] encoder_sources = [thirdparty_dir + "encoder/" + file for file in encoder_sources] transcoder_sources = [thirdparty_dir + "transcoder/basisu_transcoder.cpp"] diff --git a/modules/basis_universal/register_types.cpp b/modules/basis_universal/register_types.cpp index a3c662ba08..8e328a519d 100644 --- a/modules/basis_universal/register_types.cpp +++ b/modules/basis_universal/register_types.cpp @@ -49,8 +49,6 @@ enum BasisDecompressFormat { //workaround for lack of ETC2 RG #define USE_RG_AS_RGBA -basist::etc1_global_selector_codebook *sel_codebook = nullptr; - #ifdef TOOLS_ENABLED static Vector<uint8_t> basis_universal_packer(const Ref<Image> &p_image, Image::UsedChannels p_channels) { Vector<uint8_t> budata; @@ -77,18 +75,14 @@ static Vector<uint8_t> basis_universal_packer(const Ref<Image> &p_image, Image:: memcpy(buimg.get_ptr(), r, vec.size()); } - //image->save_png("pepeche.png"); - basisu::basis_compressor_params params; + params.m_uastc = true; params.m_max_endpoint_clusters = 512; params.m_max_selector_clusters = 512; params.m_multithreading = true; - //params.m_no_hybrid_sel_cb = true; //fixme, default on this causes crashes //seems fixed? - params.m_pSel_codebook = sel_codebook; //params.m_quality_level = 0; //params.m_disable_hierarchical_endpoint_codebooks = true; //params.m_no_selector_rdo = true; - params.m_auto_global_sel_pal = false; basisu::job_pool jpool(OS::get_singleton()->get_processor_count()); params.m_pJob_pool = &jpool; @@ -225,7 +219,7 @@ static Ref<Image> basis_universal_unpacker(const Vector<uint8_t> &p_buffer) { ptr += 4; size -= 4; - basist::basisu_transcoder tr(nullptr); + basist::basisu_transcoder tr; ERR_FAIL_COND_V(!tr.validate_header(ptr, size), image); @@ -267,7 +261,9 @@ static Ref<Image> basis_universal_unpacker(const Vector<uint8_t> &p_buffer) { void register_basis_universal_types() { #ifdef TOOLS_ENABLED - sel_codebook = new basist::etc1_global_selector_codebook(basist::g_global_selector_cb_size, basist::g_global_selector_cb); + using namespace basisu; + using namespace basist; + basisu_encoder_init(); Image::basis_universal_packer = basis_universal_packer; #endif Image::basis_universal_unpacker = basis_universal_unpacker; @@ -275,7 +271,6 @@ void register_basis_universal_types() { void unregister_basis_universal_types() { #ifdef TOOLS_ENABLED - delete sel_codebook; Image::basis_universal_packer = nullptr; #endif Image::basis_universal_unpacker = nullptr; diff --git a/modules/fbx/data/fbx_mesh_data.cpp b/modules/fbx/data/fbx_mesh_data.cpp index 643a74f83e..1d59851778 100644 --- a/modules/fbx/data/fbx_mesh_data.cpp +++ b/modules/fbx/data/fbx_mesh_data.cpp @@ -371,6 +371,17 @@ ImporterMeshInstance3D *FBXMeshData::create_fbx_mesh(const ImportState &state, c Array mesh_array = surface->surface_tool->commit_to_arrays(); Array blend_shapes = surface->morphs; + // Enforce blend shape mask array format + for (int i = 0; i < blend_shapes.size(); i++) { + Array bsdata = blend_shapes[i]; + + for (int j = 0; j < Mesh::ARRAY_MAX; j++) { + if (!(Mesh::ARRAY_FORMAT_BLEND_SHAPE_MASK & (1 << j))) { + bsdata[j] = Variant(); + } + } + } + if (surface->material.is_valid()) { mesh->add_surface(Mesh::PRIMITIVE_TRIANGLES, mesh_array, blend_shapes, Dictionary(), surface->material, surface->material->get_name()); } else { diff --git a/modules/gdscript/gdscript.cpp b/modules/gdscript/gdscript.cpp index c12c1a43a3..d415684d10 100644 --- a/modules/gdscript/gdscript.cpp +++ b/modules/gdscript/gdscript.cpp @@ -827,10 +827,6 @@ Error GDScript::reload(bool p_keep_state) { if (basedir.begins_with(EditorSettings::get_singleton()->get_project_script_templates_dir())) { return OK; } -#else - if (source.contains("_BASE_")) { - return OK; - } #endif { diff --git a/modules/gltf/gltf_document.cpp b/modules/gltf/gltf_document.cpp index c70081a620..a8211569eb 100644 --- a/modules/gltf/gltf_document.cpp +++ b/modules/gltf/gltf_document.cpp @@ -2907,6 +2907,13 @@ Error GLTFDocument::_parse_meshes(Ref<GLTFState> state) { } array_copy = blend_surface_tool->commit_to_arrays(); + // Enforce blend shape mask array format + for (int l = 0; l < Mesh::ARRAY_MAX; l++) { + if (!(Mesh::ARRAY_FORMAT_BLEND_SHAPE_MASK & (1 << l))) { + array_copy[l] = Variant(); + } + } + morphs.push_back(array_copy); } } diff --git a/modules/openxr/openxr_api.cpp b/modules/openxr/openxr_api.cpp index 4d533337f3..bf668bac27 100644 --- a/modules/openxr/openxr_api.cpp +++ b/modules/openxr/openxr_api.cpp @@ -99,17 +99,7 @@ bool OpenXRAPI::openxr_is_enabled() { } OpenXRAPI *OpenXRAPI::get_singleton() { - if (singleton != nullptr) { - // already constructed, return our singleton - return singleton; - } else if (openxr_is_enabled()) { - // construct our singleton and return it - singleton = memnew(OpenXRAPI); - return singleton; - } else { - // not enabled, don't instantiate, return nullptr - return nullptr; - } + return singleton; } String OpenXRAPI::get_default_action_map_resource_name() { @@ -145,7 +135,7 @@ String OpenXRAPI::get_swapchain_format_name(int64_t p_swapchain_format) const { } bool OpenXRAPI::load_layer_properties() { - // This queries additional layers that are available and can be initialised when we create our OpenXR instance + // This queries additional layers that are available and can be initialized when we create our OpenXR instance if (layer_properties != nullptr) { // already retrieved this return true; @@ -175,7 +165,7 @@ bool OpenXRAPI::load_layer_properties() { } bool OpenXRAPI::load_supported_extensions() { - // This queries supported extensions that are available and can be initialised when we create our OpenXR instance + // This queries supported extensions that are available and can be initialized when we create our OpenXR instance if (supported_extensions != nullptr) { // already retrieved this @@ -1010,7 +1000,7 @@ bool OpenXRAPI::is_running() { return running; } -bool OpenXRAPI::initialise(const String &p_rendering_driver) { +bool OpenXRAPI::initialize(const String &p_rendering_driver) { ERR_FAIL_COND_V_MSG(instance != XR_NULL_HANDLE, false, "OpenXR instance was already created"); if (p_rendering_driver == "vulkan") { @@ -1034,7 +1024,7 @@ bool OpenXRAPI::initialise(const String &p_rendering_driver) { ERR_FAIL_V_MSG(false, "OpenXR: Unsupported rendering device."); } - // initialise + // initialize if (!load_layer_properties()) { destroy_instance(); return false; @@ -1068,7 +1058,7 @@ bool OpenXRAPI::initialise(const String &p_rendering_driver) { return true; } -bool OpenXRAPI::initialise_session() { +bool OpenXRAPI::initialize_session() { if (!create_session()) { destroy_session(); return false; @@ -1599,7 +1589,7 @@ void OpenXRAPI::end_frame() { OpenXRAPI::OpenXRAPI() { // OpenXRAPI is only constructed if OpenXR is enabled. - // It will be constructed when the rendering device first accesses OpenXR (be it the Vulkan or OpenGL rendering system) + singleton = this; if (Engine::get_singleton()->is_editor_hint()) { // Enabled OpenXR in the editor? Adjust our settings for the editor @@ -1656,7 +1646,7 @@ OpenXRAPI::OpenXRAPI() { frame_state.predictedDisplayPeriod = 0; #ifdef ANDROID_ENABLED - // our android wrapper will initialise our android loader at this point + // our android wrapper will initialize our android loader at this point register_extension_wrapper(memnew(OpenXRAndroidExtension(this))); #endif } @@ -1683,6 +1673,8 @@ OpenXRAPI::~OpenXRAPI() { memfree(layer_properties); layer_properties = nullptr; } + + singleton = nullptr; } Transform3D OpenXRAPI::transform_from_pose(const XrPosef &p_pose) { diff --git a/modules/openxr/openxr_api.h b/modules/openxr/openxr_api.h index e20826c849..5d1cea1217 100644 --- a/modules/openxr/openxr_api.h +++ b/modules/openxr/openxr_api.h @@ -234,8 +234,8 @@ public: bool is_initialized(); bool is_running(); - bool initialise(const String &p_rendering_driver); - bool initialise_session(); + bool initialize(const String &p_rendering_driver); + bool initialize_session(); void finish(); XrTime get_next_frame_time() { return frame_state.predictedDisplayTime + frame_state.predictedDisplayPeriod; }; diff --git a/modules/openxr/openxr_interface.cpp b/modules/openxr/openxr_interface.cpp index 39f9153f0d..7152cdb605 100644 --- a/modules/openxr/openxr_interface.cpp +++ b/modules/openxr/openxr_interface.cpp @@ -466,7 +466,7 @@ void OpenXRInterface::free_interaction_profiles() { interaction_profiles.clear(); } -bool OpenXRInterface::initialise_on_startup() const { +bool OpenXRInterface::initialize_on_startup() const { if (openxr_api == nullptr) { return false; } else if (!openxr_api->is_initialized()) { @@ -495,7 +495,7 @@ bool OpenXRInterface::initialize() { // load up our action sets before setting up our session, note that our profiles are suggestions, OpenXR takes ownership of (re)binding _load_action_map(); - if (!openxr_api->initialise_session()) { + if (!openxr_api->initialize_session()) { return false; } diff --git a/modules/openxr/openxr_interface.h b/modules/openxr/openxr_interface.h index 421838e445..a223acfed0 100644 --- a/modules/openxr/openxr_interface.h +++ b/modules/openxr/openxr_interface.h @@ -106,7 +106,7 @@ public: virtual PackedStringArray get_suggested_tracker_names() const override; virtual TrackingStatus get_tracking_status() const override; - bool initialise_on_startup() const; + bool initialize_on_startup() const; virtual bool is_initialized() const override; virtual bool initialize() override; virtual void uninitialize() override; diff --git a/modules/openxr/register_types.cpp b/modules/openxr/register_types.cpp index 7a74c8c089..bb550980cf 100644 --- a/modules/openxr/register_types.cpp +++ b/modules/openxr/register_types.cpp @@ -45,9 +45,13 @@ void preregister_openxr_types() { // For now we create our openxr device here. If we merge it with openxr_interface we'll create that here soon. OpenXRAPI::setup_global_defs(); - openxr_api = OpenXRAPI::get_singleton(); - if (openxr_api) { - if (!openxr_api->initialise(Main::get_rendering_driver_name())) { + if (OpenXRAPI::openxr_is_enabled()) { + openxr_api = memnew(OpenXRAPI); + ERR_FAIL_NULL(openxr_api); + + if (!openxr_api->initialize(Main::get_rendering_driver_name())) { + memdelete(openxr_api); + openxr_api = nullptr; return; } } @@ -67,7 +71,7 @@ void register_openxr_types() { openxr_interface.instantiate(); xr_server->add_interface(openxr_interface); - if (openxr_interface->initialise_on_startup()) { + if (openxr_interface->initialize_on_startup()) { openxr_interface->initialize(); } } @@ -75,7 +79,7 @@ void register_openxr_types() { void unregister_openxr_types() { if (openxr_interface.is_valid()) { - // uninitialise just in case + // uninitialize just in case if (openxr_interface->is_initialized()) { openxr_interface->uninitialize(); } @@ -96,5 +100,6 @@ void unregister_openxr_types() { if (openxr_api) { openxr_api->finish(); memdelete(openxr_api); + openxr_api = nullptr; } } diff --git a/modules/websocket/library_godot_websocket.js b/modules/websocket/library_godot_websocket.js index c88986fbe3..57f1f10b02 100644 --- a/modules/websocket/library_godot_websocket.js +++ b/modules/websocket/library_godot_websocket.js @@ -135,7 +135,7 @@ const GodotWebSocket = { if (!ref) { return; } - GodotWebSocket.close(p_id, 1001, ''); + GodotWebSocket.close(p_id, 3001, 'destroyed'); IDHandler.remove(p_id); ref.onopen = null; ref.onmessage = null; diff --git a/platform/javascript/package-lock.json b/platform/javascript/package-lock.json index 35f864f01a..f72cde955a 100644 --- a/platform/javascript/package-lock.json +++ b/platform/javascript/package-lock.json @@ -1884,9 +1884,9 @@ } }, "node_modules/minimist": { - "version": "1.2.5", - "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz", - "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==", + "version": "1.2.6", + "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.6.tgz", + "integrity": "sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q==", "dev": true }, "node_modules/mkdirp": { @@ -4444,9 +4444,9 @@ } }, "minimist": { - "version": "1.2.5", - "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz", - "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==", + "version": "1.2.6", + "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.6.tgz", + "integrity": "sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q==", "dev": true }, "mkdirp": { diff --git a/platform/linuxbsd/export/export.cpp b/platform/linuxbsd/export/export.cpp index 8aa6c47c15..ec83e52f09 100644 --- a/platform/linuxbsd/export/export.cpp +++ b/platform/linuxbsd/export/export.cpp @@ -44,10 +44,6 @@ void register_linuxbsd_exporter() { platform->set_name("Linux/X11"); platform->set_extension("x86_32"); platform->set_extension("x86_64", "binary_format/64_bits"); - platform->set_release_32("linux_x11_32_release"); - platform->set_debug_32("linux_x11_32_debug"); - platform->set_release_64("linux_x11_64_release"); - platform->set_debug_64("linux_x11_64_debug"); platform->set_os_name("LinuxBSD"); platform->set_chmod_flags(0755); diff --git a/platform/linuxbsd/export/export_plugin.cpp b/platform/linuxbsd/export/export_plugin.cpp index 08fc9c0452..24906fa3fb 100644 --- a/platform/linuxbsd/export/export_plugin.cpp +++ b/platform/linuxbsd/export/export_plugin.cpp @@ -77,6 +77,10 @@ void EditorExportPlatformLinuxBSD::set_extension(const String &p_extension, cons extensions[p_feature_key] = p_extension; } +String EditorExportPlatformLinuxBSD::get_template_file_name(const String &p_target, const String &p_arch) const { + return "linux_x11_" + p_arch + "_" + p_target; +} + List<String> EditorExportPlatformLinuxBSD::get_binary_extensions(const Ref<EditorExportPreset> &p_preset) const { List<String> list; for (const KeyValue<String, String> &E : extensions) { diff --git a/platform/linuxbsd/export/export_plugin.h b/platform/linuxbsd/export/export_plugin.h index 593916e586..f46fc68e1d 100644 --- a/platform/linuxbsd/export/export_plugin.h +++ b/platform/linuxbsd/export/export_plugin.h @@ -45,6 +45,7 @@ public: void set_extension(const String &p_extension, const String &p_feature_key = "default"); virtual List<String> get_binary_extensions(const Ref<EditorExportPreset> &p_preset) const override; virtual Error export_project(const Ref<EditorExportPreset> &p_preset, bool p_debug, const String &p_path, int p_flags = 0) override; + virtual String get_template_file_name(const String &p_target, const String &p_arch) const override; virtual Error fixup_embedded_pck(const String &p_path, int64_t p_embedded_start, int64_t p_embedded_size) const override; }; diff --git a/platform/osx/display_server_osx.mm b/platform/osx/display_server_osx.mm index 9e32cab5ed..8820201c10 100644 --- a/platform/osx/display_server_osx.mm +++ b/platform/osx/display_server_osx.mm @@ -1682,7 +1682,11 @@ Point2i DisplayServerOSX::mouse_get_position() const { for (NSScreen *screen in [NSScreen screens]) { NSRect frame = [screen frame]; if (NSMouseInRect(mouse_pos, frame, NO)) { - return Vector2i((int)mouse_pos.x, (int)-mouse_pos.y) * scale + _get_screens_origin(); + Vector2i pos = Vector2i((int)mouse_pos.x, (int)mouse_pos.y); + pos *= scale; + pos -= _get_screens_origin(); + pos.y *= -1; + return pos; } } return Vector2i(); diff --git a/platform/windows/export/export.cpp b/platform/windows/export/export.cpp index 37fdf93ecf..0fa2913218 100644 --- a/platform/windows/export/export.cpp +++ b/platform/windows/export/export.cpp @@ -55,10 +55,6 @@ void register_windows_exporter() { logo->create_from_image(img); platform->set_logo(logo); platform->set_name("Windows Desktop"); - platform->set_release_32("windows_32_release.exe"); - platform->set_debug_32("windows_32_debug.exe"); - platform->set_release_64("windows_64_release.exe"); - platform->set_debug_64("windows_64_debug.exe"); platform->set_os_name("Windows"); EditorExport::get_singleton()->add_export_platform(platform); diff --git a/platform/windows/export/export_plugin.cpp b/platform/windows/export/export_plugin.cpp index f20cff90c1..e627253739 100644 --- a/platform/windows/export/export_plugin.cpp +++ b/platform/windows/export/export_plugin.cpp @@ -86,6 +86,10 @@ Error EditorExportPlatformWindows::export_project(const Ref<EditorExportPreset> return err; } +String EditorExportPlatformWindows::get_template_file_name(const String &p_target, const String &p_arch) const { + return "windows_" + p_arch + "_" + p_target + ".exe"; +} + List<String> EditorExportPlatformWindows::get_binary_extensions(const Ref<EditorExportPreset> &p_preset) const { List<String> list; list.push_back("exe"); diff --git a/platform/windows/export/export_plugin.h b/platform/windows/export/export_plugin.h index 04707a5667..39d1cf4c77 100644 --- a/platform/windows/export/export_plugin.h +++ b/platform/windows/export/export_plugin.h @@ -49,6 +49,7 @@ public: virtual void get_export_options(List<ExportOption> *r_options) override; virtual bool get_export_option_visibility(const String &p_option, const Map<StringName, Variant> &p_options) const override; virtual bool can_export(const Ref<EditorExportPreset> &p_preset, String &r_error, bool &r_missing_templates) const override; + virtual String get_template_file_name(const String &p_target, const String &p_arch) const override; virtual Error fixup_embedded_pck(const String &p_path, int64_t p_embedded_start, int64_t p_embedded_size) const override; }; diff --git a/scene/animation/tween.cpp b/scene/animation/tween.cpp index a2fed718be..c8eb270a0a 100644 --- a/scene/animation/tween.cpp +++ b/scene/animation/tween.cpp @@ -741,12 +741,12 @@ bool PropertyTweener::step(float &r_delta) { } float time = MIN(elapsed_time - delay, duration); - target_instance->set_indexed(property, tween->interpolate_variant(initial_val, delta_val, time, duration, trans_type, ease_type)); - if (time < duration) { + target_instance->set_indexed(property, tween->interpolate_variant(initial_val, delta_val, time, duration, trans_type, ease_type)); r_delta = 0; return true; } else { + target_instance->set_indexed(property, final_val); finished = true; r_delta = elapsed_time - delay - duration; emit_signal(SNAME("finished")); @@ -895,8 +895,13 @@ bool MethodTweener::step(float &r_delta) { return true; } + Variant current_val; float time = MIN(elapsed_time - delay, duration); - Variant current_val = tween->interpolate_variant(initial_val, delta_val, time, duration, trans_type, ease_type); + if (time < duration) { + current_val = tween->interpolate_variant(initial_val, delta_val, time, duration, trans_type, ease_type); + } else { + current_val = final_val; + } const Variant **argptr = (const Variant **)alloca(sizeof(Variant *)); argptr[0] = ¤t_val; @@ -938,6 +943,7 @@ MethodTweener::MethodTweener(Callable p_callback, Variant p_from, Variant p_to, callback = p_callback; initial_val = p_from; delta_val = tween->calculate_delta_value(p_from, p_to); + final_val = p_to; duration = p_duration; } diff --git a/scene/animation/tween.h b/scene/animation/tween.h index 5b0745b2b3..62c357dfb4 100644 --- a/scene/animation/tween.h +++ b/scene/animation/tween.h @@ -274,6 +274,7 @@ private: Ref<Tween> tween; Variant initial_val; Variant delta_val; + Variant final_val; Callable callback; }; diff --git a/scene/gui/dialogs.cpp b/scene/gui/dialogs.cpp index e3744eedca..be57ca9084 100644 --- a/scene/gui/dialogs.cpp +++ b/scene/gui/dialogs.cpp @@ -93,6 +93,9 @@ void AcceptDialog::_notification(int p_what) { } void AcceptDialog::_text_submitted(const String &p_text) { + if (get_ok_button() && get_ok_button()->is_disabled()) { + return; // Do not allow submission if OK button is disabled. + } _ok_pressed(); } diff --git a/scene/gui/subviewport_container.cpp b/scene/gui/subviewport_container.cpp index c66e145bc4..799eea7eac 100644 --- a/scene/gui/subviewport_container.cpp +++ b/scene/gui/subviewport_container.cpp @@ -223,6 +223,23 @@ void SubViewportContainer::unhandled_input(const Ref<InputEvent> &p_event) { } } +TypedArray<String> SubViewportContainer::get_configuration_warnings() const { + TypedArray<String> warnings = Node::get_configuration_warnings(); + + bool has_viewport = false; + for (int i = 0; i < get_child_count(); i++) { + if (Object::cast_to<SubViewport>(get_child(i))) { + has_viewport = true; + break; + } + } + if (!has_viewport) { + warnings.push_back(TTR("This node doesn't have a SubViewport as child, so it can't display its intended content.\nConsider adding a SubViewport as a child to provide something displayable.")); + } + + return warnings; +} + void SubViewportContainer::_bind_methods() { ClassDB::bind_method(D_METHOD("set_stretch", "enable"), &SubViewportContainer::set_stretch); ClassDB::bind_method(D_METHOD("is_stretch_enabled"), &SubViewportContainer::is_stretch_enabled); diff --git a/scene/gui/subviewport_container.h b/scene/gui/subviewport_container.h index f52f01e4e2..55b7802aa4 100644 --- a/scene/gui/subviewport_container.h +++ b/scene/gui/subviewport_container.h @@ -58,6 +58,8 @@ public: virtual Vector<int> get_allowed_size_flags_horizontal() const override; virtual Vector<int> get_allowed_size_flags_vertical() const override; + TypedArray<String> get_configuration_warnings() const override; + SubViewportContainer(); }; diff --git a/scene/gui/tab_bar.cpp b/scene/gui/tab_bar.cpp index 8128bbd11d..ce2dca0ea3 100644 --- a/scene/gui/tab_bar.cpp +++ b/scene/gui/tab_bar.cpp @@ -35,6 +35,7 @@ #include "scene/gui/box_container.h" #include "scene/gui/label.h" #include "scene/gui/texture_rect.h" +#include "scene/main/viewport.h" Size2 TabBar::get_minimum_size() const { Size2 ms; @@ -158,7 +159,13 @@ void TabBar::gui_input(const Ref<InputEvent> &p_event) { } } + if (get_viewport()->gui_is_dragging() && can_drop_data(pos, get_viewport()->gui_get_drag_data())) { + dragging_valid_tab = true; + update(); + } + _update_hover(); + return; } @@ -333,6 +340,13 @@ void TabBar::_notification(int p_what) { } } break; + case NOTIFICATION_DRAG_END: { + if (dragging_valid_tab) { + dragging_valid_tab = false; + update(); + } + } break; + case NOTIFICATION_DRAW: { if (tabs.is_empty()) { return; @@ -346,8 +360,6 @@ void TabBar::_notification(int p_what) { Color font_disabled_color = get_theme_color(SNAME("font_disabled_color")); Ref<Texture2D> incr = get_theme_icon(SNAME("increment")); Ref<Texture2D> decr = get_theme_icon(SNAME("decrement")); - Ref<Texture2D> incr_hl = get_theme_icon(SNAME("increment_highlight")); - Ref<Texture2D> decr_hl = get_theme_icon(SNAME("decrement_highlight")); bool rtl = is_layout_rtl(); Vector2 size = get_size(); @@ -391,7 +403,10 @@ void TabBar::_notification(int p_what) { } if (buttons_visible) { - int vofs = (get_size().height - incr->get_size().height) / 2; + Ref<Texture2D> incr_hl = get_theme_icon(SNAME("increment_highlight")); + Ref<Texture2D> decr_hl = get_theme_icon(SNAME("decrement_highlight")); + + int vofs = (size.height - incr->get_size().height) / 2; if (rtl) { if (missing_right) { @@ -419,6 +434,39 @@ void TabBar::_notification(int p_what) { } } } + + if (dragging_valid_tab) { + int x; + + int tab_hover = get_hovered_tab(); + if (tab_hover != -1) { + Rect2 tab_rect = get_tab_rect(tab_hover); + + x = tab_rect.position.x; + if (get_local_mouse_position().x > x + tab_rect.size.width / 2) { + x += tab_rect.size.width; + } + } else { + if (rtl ^ (get_local_mouse_position().x < get_tab_rect(0).position.x)) { + x = get_tab_rect(0).position.x; + if (rtl) { + x += get_tab_rect(0).size.width; + } + } else { + Rect2 tab_rect = get_tab_rect(get_tab_count() - 1); + + x = tab_rect.position.x; + if (!rtl) { + x += tab_rect.size.width; + } + } + } + + Ref<Texture2D> drop_mark = get_theme_icon(SNAME("drop_mark")); + Color drop_mark_color = get_theme_color(SNAME("drop_mark_color")); + + drop_mark->draw(get_canvas_item(), Point2(x - drop_mark->get_width() / 2, (size.height - drop_mark->get_height()) / 2), drop_mark_color); + } } break; } } @@ -906,6 +954,8 @@ void TabBar::_on_mouse_exited() { cb_hover = -1; hover = -1; highlight_arrow = -1; + dragging_valid_tab = false; + update(); } @@ -1057,13 +1107,29 @@ void TabBar::drop_data(const Point2 &p_point, const Variant &p_data) { NodePath to_path = get_path(); if (from_path == to_path) { - if (hover_now < 0) { - hover_now = get_tab_count() - 1; + if (tab_from_id == hover_now) { + return; + } + + // Drop the new tab to the left or right depending on where the target tab is being hovered. + if (hover_now != -1) { + Rect2 tab_rect = get_tab_rect(hover_now); + if (is_layout_rtl() ^ (p_point.x <= tab_rect.position.x + tab_rect.size.width / 2)) { + if (hover_now > tab_from_id) { + hover_now -= 1; + } + } else if (tab_from_id > hover_now) { + hover_now += 1; + } + } else { + hover_now = is_layout_rtl() ^ (p_point.x < get_tab_rect(0).position.x) ? 0 : get_tab_count() - 1; } move_tab(tab_from_id, hover_now); - emit_signal(SNAME("active_tab_rearranged"), hover_now); - set_current_tab(hover_now); + if (!is_tab_disabled(hover_now)) { + emit_signal(SNAME("active_tab_rearranged"), hover_now); + set_current_tab(hover_now); + } } else if (get_tabs_rearrange_group() != -1) { // Drag and drop between Tabs. @@ -1075,11 +1141,17 @@ void TabBar::drop_data(const Point2 &p_point, const Variant &p_data) { return; } - Tab moving_tab = from_tabs->tabs[tab_from_id]; - if (hover_now < 0) { - hover_now = get_tab_count(); + // Drop the new tab to the left or right depending on where the target tab is being hovered. + if (hover_now != -1) { + Rect2 tab_rect = get_tab_rect(hover_now); + if (is_layout_rtl() ^ (p_point.x > tab_rect.position.x + tab_rect.size.width / 2)) { + hover_now += 1; + } + } else { + hover_now = is_layout_rtl() ^ (p_point.x < get_tab_rect(0).position.x) ? 0 : get_tab_count(); } + Tab moving_tab = from_tabs->tabs[tab_from_id]; from_tabs->remove_tab(tab_from_id); tabs.insert(hover_now, moving_tab); @@ -1092,7 +1164,13 @@ void TabBar::drop_data(const Point2 &p_point, const Variant &p_data) { } } - set_current_tab(hover_now); + if (!is_tab_disabled(hover_now)) { + set_current_tab(hover_now); + } else { + _update_cache(); + update(); + } + update_minimum_size(); if (tabs.size() == 1) { diff --git a/scene/gui/tab_bar.h b/scene/gui/tab_bar.h index e0c4ba85ef..548a2e62af 100644 --- a/scene/gui/tab_bar.h +++ b/scene/gui/tab_bar.h @@ -101,6 +101,7 @@ private: int max_width = 0; bool scrolling_enabled = true; bool drag_to_rearrange_enabled = false; + bool dragging_valid_tab = false; bool scroll_to_selected = true; int tabs_rearrange_group = -1; diff --git a/scene/gui/tab_container.cpp b/scene/gui/tab_container.cpp index ee61c862b7..1697e743be 100644 --- a/scene/gui/tab_container.cpp +++ b/scene/gui/tab_container.cpp @@ -173,9 +173,9 @@ void TabContainer::_notification(int p_what) { int x = is_layout_rtl() ? 0 : get_size().width - menu->get_width(); if (menu_hovered) { - menu_hl->draw(get_canvas_item(), Size2(x, (header_height - menu_hl->get_height()) / 2)); + menu_hl->draw(get_canvas_item(), Point2(x, (header_height - menu_hl->get_height()) / 2)); } else { - menu->draw(get_canvas_item(), Size2(x, (header_height - menu->get_height()) / 2)); + menu->draw(get_canvas_item(), Point2(x, (header_height - menu->get_height()) / 2)); } } } break; @@ -201,6 +201,8 @@ void TabContainer::_on_theme_changed() { tab_bar->add_theme_icon_override(SNAME("increment_highlight"), get_theme_icon(SNAME("increment_highlight"))); tab_bar->add_theme_icon_override(SNAME("decrement"), get_theme_icon(SNAME("decrement"))); tab_bar->add_theme_icon_override(SNAME("decrement_highlight"), get_theme_icon(SNAME("decrement_highlight"))); + tab_bar->add_theme_icon_override(SNAME("drop_mark"), get_theme_icon(SNAME("drop_mark"))); + tab_bar->add_theme_color_override(SNAME("drop_mark_color"), get_theme_color(SNAME("drop_mark_color"))); tab_bar->add_theme_color_override(SNAME("font_selected_color"), get_theme_color(SNAME("font_selected_color"))); tab_bar->add_theme_color_override(SNAME("font_unselected_color"), get_theme_color(SNAME("font_unselected_color"))); tab_bar->add_theme_color_override(SNAME("font_disabled_color"), get_theme_color(SNAME("font_disabled_color"))); @@ -384,8 +386,6 @@ void TabContainer::_drop_data_fw(const Point2 &p_point, const Variant &p_data, C return; } - int hover_now = get_tab_idx_at_point(p_point); - Dictionary d = p_data; if (!d.has("type")) { return; @@ -393,11 +393,27 @@ void TabContainer::_drop_data_fw(const Point2 &p_point, const Variant &p_data, C if (String(d["type"]) == "tabc_element") { int tab_from_id = d["tabc_element"]; + int hover_now = get_tab_idx_at_point(p_point); NodePath from_path = d["from_path"]; NodePath to_path = get_path(); + if (from_path == to_path) { - if (hover_now < 0) { - hover_now = get_tab_count() - 1; + if (tab_from_id == hover_now) { + return; + } + + // Drop the new tab to the left or right depending on where the target tab is being hovered. + if (hover_now != -1) { + Rect2 tab_rect = tab_bar->get_tab_rect(hover_now); + if (is_layout_rtl() ^ (p_point.x <= tab_rect.position.x + tab_rect.size.width / 2)) { + if (hover_now > tab_from_id) { + hover_now -= 1; + } + } else if (tab_from_id > hover_now) { + hover_now += 1; + } + } else { + hover_now = is_layout_rtl() ^ (p_point.x < tab_bar->get_tab_rect(0).position.x) ? 0 : get_tab_count() - 1; } move_child(get_tab_control(tab_from_id), get_tab_control(hover_now)->get_index(false)); @@ -407,16 +423,31 @@ void TabContainer::_drop_data_fw(const Point2 &p_point, const Variant &p_data, C } else if (get_tabs_rearrange_group() != -1) { // Drag and drop between TabContainers. + Node *from_node = get_node(from_path); TabContainer *from_tabc = Object::cast_to<TabContainer>(from_node); + if (from_tabc && from_tabc->get_tabs_rearrange_group() == get_tabs_rearrange_group()) { + // Get the tab properties before they get erased by the child removal. + String tab_title = from_tabc->get_tab_title(tab_from_id); + bool tab_disabled = from_tabc->is_tab_disabled(tab_from_id); + + // Drop the new tab to the left or right depending on where the target tab is being hovered. + if (hover_now != -1) { + Rect2 tab_rect = tab_bar->get_tab_rect(hover_now); + if (is_layout_rtl() ^ (p_point.x > tab_rect.position.x + tab_rect.size.width / 2)) { + hover_now += 1; + } + } else { + hover_now = is_layout_rtl() ^ (p_point.x < tab_bar->get_tab_rect(0).position.x) ? 0 : get_tab_count(); + } + Control *moving_tabc = from_tabc->get_tab_control(tab_from_id); from_tabc->remove_child(moving_tabc); add_child(moving_tabc, true); - if (hover_now < 0) { - hover_now = get_tab_count() - 1; - } + set_tab_title(get_tab_count() - 1, tab_title); + set_tab_disabled(get_tab_count() - 1, tab_disabled); move_child(moving_tabc, get_tab_control(hover_now)->get_index(false)); if (!is_tab_disabled(hover_now)) { diff --git a/scene/resources/capsule_shape_2d.cpp b/scene/resources/capsule_shape_2d.cpp index a1ad487bff..c7bd4cb698 100644 --- a/scene/resources/capsule_shape_2d.cpp +++ b/scene/resources/capsule_shape_2d.cpp @@ -109,8 +109,8 @@ void CapsuleShape2D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_height", "height"), &CapsuleShape2D::set_height); ClassDB::bind_method(D_METHOD("get_height"), &CapsuleShape2D::get_height); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "radius"), "set_radius", "get_radius"); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "height"), "set_height", "get_height"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "radius", PROPERTY_HINT_RANGE, "0.01,1024,0.01,or_greater"), "set_radius", "get_radius"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "height", PROPERTY_HINT_RANGE, "0.01,1024,0.01,or_greater"), "set_height", "get_height"); ADD_LINKED_PROPERTY("radius", "height"); ADD_LINKED_PROPERTY("height", "radius"); } diff --git a/scene/resources/capsule_shape_3d.cpp b/scene/resources/capsule_shape_3d.cpp index 2179ce82dd..d708706ff2 100644 --- a/scene/resources/capsule_shape_3d.cpp +++ b/scene/resources/capsule_shape_3d.cpp @@ -29,6 +29,7 @@ /*************************************************************************/ #include "capsule_shape_3d.h" + #include "servers/physics_server_3d.h" Vector<Vector3> CapsuleShape3D::get_debug_mesh_lines() const { @@ -112,8 +113,8 @@ void CapsuleShape3D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_height", "height"), &CapsuleShape3D::set_height); ClassDB::bind_method(D_METHOD("get_height"), &CapsuleShape3D::get_height); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "radius", PROPERTY_HINT_RANGE, "0.001,4096,0.001"), "set_radius", "get_radius"); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "height", PROPERTY_HINT_RANGE, "0.001,4096,0.001"), "set_height", "get_height"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "radius", PROPERTY_HINT_RANGE, "0.001,100,0.001,or_greater"), "set_radius", "get_radius"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "height", PROPERTY_HINT_RANGE, "0.001,100,0.001,or_greater"), "set_height", "get_height"); ADD_LINKED_PROPERTY("radius", "height"); ADD_LINKED_PROPERTY("height", "radius"); } diff --git a/scene/resources/circle_shape_2d.cpp b/scene/resources/circle_shape_2d.cpp index de931fca7e..c287de9ede 100644 --- a/scene/resources/circle_shape_2d.cpp +++ b/scene/resources/circle_shape_2d.cpp @@ -56,7 +56,7 @@ void CircleShape2D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_radius", "radius"), &CircleShape2D::set_radius); ClassDB::bind_method(D_METHOD("get_radius"), &CircleShape2D::get_radius); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "radius", PROPERTY_HINT_RANGE, "0.01,16384,0.5"), "set_radius", "get_radius"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "radius", PROPERTY_HINT_RANGE, "0.01,1024,0.01,or_greater"), "set_radius", "get_radius"); } Rect2 CircleShape2D::get_rect() const { diff --git a/scene/resources/cylinder_shape_3d.cpp b/scene/resources/cylinder_shape_3d.cpp index c4f1cba341..a1fe5c46fb 100644 --- a/scene/resources/cylinder_shape_3d.cpp +++ b/scene/resources/cylinder_shape_3d.cpp @@ -29,6 +29,7 @@ /*************************************************************************/ #include "cylinder_shape_3d.h" + #include "servers/physics_server_3d.h" Vector<Vector3> CylinderShape3D::get_debug_mesh_lines() const { @@ -99,8 +100,8 @@ void CylinderShape3D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_height", "height"), &CylinderShape3D::set_height); ClassDB::bind_method(D_METHOD("get_height"), &CylinderShape3D::get_height); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "radius", PROPERTY_HINT_RANGE, "0.001,4096,0.001"), "set_radius", "get_radius"); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "height", PROPERTY_HINT_RANGE, "0.001,4096,0.001"), "set_height", "get_height"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "height", PROPERTY_HINT_RANGE, "0.001,100,0.001,or_greater"), "set_height", "get_height"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "radius", PROPERTY_HINT_RANGE, "0.001,100,0.001,or_greater"), "set_radius", "get_radius"); } CylinderShape3D::CylinderShape3D() : diff --git a/scene/resources/default_theme/SCsub b/scene/resources/default_theme/SCsub index f27bd9144e..5bef7e5a6c 100644 --- a/scene/resources/default_theme/SCsub +++ b/scene/resources/default_theme/SCsub @@ -8,10 +8,10 @@ import default_theme_icons_builders env.add_source_files(env.scene_sources, "*.cpp") -env.Depends("#scene/resources/default_theme/default_font.gen.h", "#thirdparty/fonts/OpenSans_SemiBold.ttf") +env.Depends("#scene/resources/default_theme/default_font.gen.h", "#thirdparty/fonts/OpenSans_SemiBold.woff2") env.CommandNoCache( "#scene/resources/default_theme/default_font.gen.h", - "#thirdparty/fonts/OpenSans_SemiBold.ttf", + "#thirdparty/fonts/OpenSans_SemiBold.woff2", run_in_subprocess(default_theme_builders.make_fonts_header), ) diff --git a/scene/resources/default_theme/default_theme.cpp b/scene/resources/default_theme/default_theme.cpp index da37228ed9..eb71401a3a 100644 --- a/scene/resources/default_theme/default_theme.cpp +++ b/scene/resources/default_theme/default_theme.cpp @@ -801,6 +801,7 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const theme->set_icon("increment_highlight", "TabContainer", icons["scroll_button_right_hl"]); theme->set_icon("decrement", "TabContainer", icons["scroll_button_left"]); theme->set_icon("decrement_highlight", "TabContainer", icons["scroll_button_left_hl"]); + theme->set_icon("drop_mark", "TabContainer", icons["tabs_drop_mark"]); theme->set_icon("menu", "TabContainer", icons["tabs_menu"]); theme->set_icon("menu_highlight", "TabContainer", icons["tabs_menu_hl"]); @@ -811,6 +812,7 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const theme->set_color("font_unselected_color", "TabContainer", control_font_low_color); theme->set_color("font_disabled_color", "TabContainer", control_font_disabled_color); theme->set_color("font_outline_color", "TabContainer", Color(1, 1, 1)); + theme->set_color("drop_mark_color", "TabContainer", Color(1, 1, 1)); theme->set_constant("side_margin", "TabContainer", 8 * scale); theme->set_constant("icon_separation", "TabContainer", 4 * scale); @@ -828,6 +830,7 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const theme->set_icon("increment_highlight", "TabBar", icons["scroll_button_right_hl"]); theme->set_icon("decrement", "TabBar", icons["scroll_button_left"]); theme->set_icon("decrement_highlight", "TabBar", icons["scroll_button_left_hl"]); + theme->set_icon("drop_mark", "TabBar", icons["tabs_drop_mark"]); theme->set_icon("close", "TabBar", icons["close"]); theme->set_font("font", "TabBar", Ref<Font>()); @@ -837,6 +840,7 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const theme->set_color("font_unselected_color", "TabBar", control_font_low_color); theme->set_color("font_disabled_color", "TabBar", control_font_disabled_color); theme->set_color("font_outline_color", "TabBar", Color(1, 1, 1)); + theme->set_color("drop_mark_color", "TabBar", Color(1, 1, 1)); theme->set_constant("hseparation", "TabBar", 4 * scale); theme->set_constant("outline_size", "TabBar", 0); diff --git a/scene/resources/default_theme/tabs_drop_mark.svg b/scene/resources/default_theme/tabs_drop_mark.svg new file mode 100644 index 0000000000..b1415bec45 --- /dev/null +++ b/scene/resources/default_theme/tabs_drop_mark.svg @@ -0,0 +1 @@ +<svg height="32" viewBox="0 0 16 32" width="16" xmlns="http://www.w3.org/2000/svg"><path d="m5 1h6v30h-6z" fill="#d3d3d3"/></svg> diff --git a/scene/resources/environment.cpp b/scene/resources/environment.cpp index 82d8ad4444..78698835fc 100644 --- a/scene/resources/environment.cpp +++ b/scene/resources/environment.cpp @@ -1079,7 +1079,7 @@ void Environment::_validate_property(PropertyInfo &property) const { "fog_", "volumetric_fog_", "auto_exposure_", - "ss_reflections_", + "ssr_", "ssao_", "sdfgi_", "glow_", @@ -1091,7 +1091,7 @@ void Environment::_validate_property(PropertyInfo &property) const { static const char *high_end_prefixes[] = { "auto_exposure_", "tonemap_", - "ss_reflections_", + "ssr_", "ssao_", nullptr @@ -1241,12 +1241,12 @@ void Environment::_bind_methods() { ClassDB::bind_method(D_METHOD("set_ssr_depth_tolerance", "depth_tolerance"), &Environment::set_ssr_depth_tolerance); ClassDB::bind_method(D_METHOD("get_ssr_depth_tolerance"), &Environment::get_ssr_depth_tolerance); - ADD_GROUP("SS Reflections", "ss_reflections_"); - ADD_PROPERTY(PropertyInfo(Variant::BOOL, "ss_reflections_enabled"), "set_ssr_enabled", "is_ssr_enabled"); - ADD_PROPERTY(PropertyInfo(Variant::INT, "ss_reflections_max_steps", PROPERTY_HINT_RANGE, "1,512,1"), "set_ssr_max_steps", "get_ssr_max_steps"); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ss_reflections_fade_in", PROPERTY_HINT_EXP_EASING), "set_ssr_fade_in", "get_ssr_fade_in"); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ss_reflections_fade_out", PROPERTY_HINT_EXP_EASING), "set_ssr_fade_out", "get_ssr_fade_out"); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ss_reflections_depth_tolerance", PROPERTY_HINT_RANGE, "0.01,128,0.1"), "set_ssr_depth_tolerance", "get_ssr_depth_tolerance"); + ADD_GROUP("SSR", "ssr_"); + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "ssr_enabled"), "set_ssr_enabled", "is_ssr_enabled"); + ADD_PROPERTY(PropertyInfo(Variant::INT, "ssr_max_steps", PROPERTY_HINT_RANGE, "1,512,1"), "set_ssr_max_steps", "get_ssr_max_steps"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ssr_fade_in", PROPERTY_HINT_EXP_EASING), "set_ssr_fade_in", "get_ssr_fade_in"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ssr_fade_out", PROPERTY_HINT_EXP_EASING), "set_ssr_fade_out", "get_ssr_fade_out"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ssr_depth_tolerance", PROPERTY_HINT_RANGE, "0.01,128,0.1"), "set_ssr_depth_tolerance", "get_ssr_depth_tolerance"); // SSAO ClassDB::bind_method(D_METHOD("set_ssao_enabled", "enabled"), &Environment::set_ssao_enabled); diff --git a/scene/resources/height_map_shape_3d.cpp b/scene/resources/height_map_shape_3d.cpp index 121930d86f..824dc4a544 100644 --- a/scene/resources/height_map_shape_3d.cpp +++ b/scene/resources/height_map_shape_3d.cpp @@ -29,6 +29,7 @@ /*************************************************************************/ #include "height_map_shape_3d.h" + #include "servers/physics_server_3d.h" Vector<Vector3> HeightMapShape3D::get_debug_mesh_lines() const { @@ -186,8 +187,8 @@ void HeightMapShape3D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_map_data", "data"), &HeightMapShape3D::set_map_data); ClassDB::bind_method(D_METHOD("get_map_data"), &HeightMapShape3D::get_map_data); - ADD_PROPERTY(PropertyInfo(Variant::INT, "map_width", PROPERTY_HINT_RANGE, "1,4096,1"), "set_map_width", "get_map_width"); - ADD_PROPERTY(PropertyInfo(Variant::INT, "map_depth", PROPERTY_HINT_RANGE, "1,4096,1"), "set_map_depth", "get_map_depth"); + ADD_PROPERTY(PropertyInfo(Variant::INT, "map_width", PROPERTY_HINT_RANGE, "0.001,100,0.001,or_greater"), "set_map_width", "get_map_width"); + ADD_PROPERTY(PropertyInfo(Variant::INT, "map_depth", PROPERTY_HINT_RANGE, "0.001,100,0.001,or_greater"), "set_map_depth", "get_map_depth"); ADD_PROPERTY(PropertyInfo(Variant::PACKED_FLOAT32_ARRAY, "map_data"), "set_map_data", "get_map_data"); } diff --git a/scene/resources/separation_ray_shape_2d.cpp b/scene/resources/separation_ray_shape_2d.cpp index 0406c91b70..df7b0d969a 100644 --- a/scene/resources/separation_ray_shape_2d.cpp +++ b/scene/resources/separation_ray_shape_2d.cpp @@ -89,7 +89,7 @@ void SeparationRayShape2D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_slide_on_slope", "active"), &SeparationRayShape2D::set_slide_on_slope); ClassDB::bind_method(D_METHOD("get_slide_on_slope"), &SeparationRayShape2D::get_slide_on_slope); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "length"), "set_length", "get_length"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "length", PROPERTY_HINT_RANGE, "0.01,1024,0.01,or_greater"), "set_length", "get_length"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "slide_on_slope"), "set_slide_on_slope", "get_slide_on_slope"); } diff --git a/scene/resources/separation_ray_shape_3d.cpp b/scene/resources/separation_ray_shape_3d.cpp index 5aa7616589..736cb60c1c 100644 --- a/scene/resources/separation_ray_shape_3d.cpp +++ b/scene/resources/separation_ray_shape_3d.cpp @@ -80,7 +80,7 @@ void SeparationRayShape3D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_slide_on_slope", "active"), &SeparationRayShape3D::set_slide_on_slope); ClassDB::bind_method(D_METHOD("get_slide_on_slope"), &SeparationRayShape3D::get_slide_on_slope); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "length", PROPERTY_HINT_RANGE, "0,4096,0.001"), "set_length", "get_length"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "length", PROPERTY_HINT_RANGE, "0.001,100,0.001,or_greater"), "set_length", "get_length"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "slide_on_slope"), "set_slide_on_slope", "get_slide_on_slope"); } diff --git a/scene/resources/sphere_shape_3d.cpp b/scene/resources/sphere_shape_3d.cpp index 8282992401..8de0dc1650 100644 --- a/scene/resources/sphere_shape_3d.cpp +++ b/scene/resources/sphere_shape_3d.cpp @@ -29,6 +29,7 @@ /*************************************************************************/ #include "sphere_shape_3d.h" + #include "servers/physics_server_3d.h" Vector<Vector3> SphereShape3D::get_debug_mesh_lines() const { @@ -77,7 +78,7 @@ void SphereShape3D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_radius", "radius"), &SphereShape3D::set_radius); ClassDB::bind_method(D_METHOD("get_radius"), &SphereShape3D::get_radius); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "radius", PROPERTY_HINT_RANGE, "0,4096,0.001"), "set_radius", "get_radius"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "radius", PROPERTY_HINT_RANGE, "0.001,100,0.001,or_greater"), "set_radius", "get_radius"); } SphereShape3D::SphereShape3D() : diff --git a/scene/resources/world_boundary_shape_2d.cpp b/scene/resources/world_boundary_shape_2d.cpp index 9789388c6a..ac5be79d24 100644 --- a/scene/resources/world_boundary_shape_2d.cpp +++ b/scene/resources/world_boundary_shape_2d.cpp @@ -108,7 +108,7 @@ void WorldBoundaryShape2D::_bind_methods() { ClassDB::bind_method(D_METHOD("get_distance"), &WorldBoundaryShape2D::get_distance); ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "normal"), "set_normal", "get_normal"); - ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "distance"), "set_distance", "get_distance"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "distance", PROPERTY_HINT_RANGE, "0.01,1024,0.01,or_greater"), "set_distance", "get_distance"); } WorldBoundaryShape2D::WorldBoundaryShape2D() : diff --git a/servers/physics_2d/godot_broad_phase_2d_bvh.cpp b/servers/physics_2d/godot_broad_phase_2d_bvh.cpp index 06f035a506..2cc60fc765 100644 --- a/servers/physics_2d/godot_broad_phase_2d_bvh.cpp +++ b/servers/physics_2d/godot_broad_phase_2d_bvh.cpp @@ -39,31 +39,37 @@ GodotBroadPhase2D::ID GodotBroadPhase2DBVH::create(GodotCollisionObject2D *p_obj } void GodotBroadPhase2DBVH::move(ID p_id, const Rect2 &p_aabb) { + ERR_FAIL_COND(!p_id); bvh.move(p_id - 1, p_aabb); } void GodotBroadPhase2DBVH::set_static(ID p_id, bool p_static) { + ERR_FAIL_COND(!p_id); uint32_t tree_id = p_static ? TREE_STATIC : TREE_DYNAMIC; uint32_t tree_collision_mask = p_static ? TREE_FLAG_DYNAMIC : (TREE_FLAG_STATIC | TREE_FLAG_DYNAMIC); bvh.set_tree(p_id - 1, tree_id, tree_collision_mask, false); } void GodotBroadPhase2DBVH::remove(ID p_id) { + ERR_FAIL_COND(!p_id); bvh.erase(p_id - 1); } GodotCollisionObject2D *GodotBroadPhase2DBVH::get_object(ID p_id) const { + ERR_FAIL_COND_V(!p_id, nullptr); GodotCollisionObject2D *it = bvh.get(p_id - 1); ERR_FAIL_COND_V(!it, nullptr); return it; } bool GodotBroadPhase2DBVH::is_static(ID p_id) const { + ERR_FAIL_COND_V(!p_id, false); uint32_t tree_id = bvh.get_tree_id(p_id - 1); return tree_id == 0; } int GodotBroadPhase2DBVH::get_subindex(ID p_id) const { + ERR_FAIL_COND_V(!p_id, 0); return bvh.get_subindex(p_id - 1); } diff --git a/servers/physics_3d/godot_broad_phase_3d_bvh.cpp b/servers/physics_3d/godot_broad_phase_3d_bvh.cpp index ecdf74fd41..b34f9d214f 100644 --- a/servers/physics_3d/godot_broad_phase_3d_bvh.cpp +++ b/servers/physics_3d/godot_broad_phase_3d_bvh.cpp @@ -40,31 +40,37 @@ GodotBroadPhase3DBVH::ID GodotBroadPhase3DBVH::create(GodotCollisionObject3D *p_ } void GodotBroadPhase3DBVH::move(ID p_id, const AABB &p_aabb) { + ERR_FAIL_COND(!p_id); bvh.move(p_id - 1, p_aabb); } void GodotBroadPhase3DBVH::set_static(ID p_id, bool p_static) { + ERR_FAIL_COND(!p_id); uint32_t tree_id = p_static ? TREE_STATIC : TREE_DYNAMIC; uint32_t tree_collision_mask = p_static ? TREE_FLAG_DYNAMIC : (TREE_FLAG_STATIC | TREE_FLAG_DYNAMIC); bvh.set_tree(p_id - 1, tree_id, tree_collision_mask, false); } void GodotBroadPhase3DBVH::remove(ID p_id) { + ERR_FAIL_COND(!p_id); bvh.erase(p_id - 1); } GodotCollisionObject3D *GodotBroadPhase3DBVH::get_object(ID p_id) const { + ERR_FAIL_COND_V(!p_id, nullptr); GodotCollisionObject3D *it = bvh.get(p_id - 1); ERR_FAIL_COND_V(!it, nullptr); return it; } bool GodotBroadPhase3DBVH::is_static(ID p_id) const { + ERR_FAIL_COND_V(!p_id, false); uint32_t tree_id = bvh.get_tree_id(p_id - 1); return tree_id == 0; } int GodotBroadPhase3DBVH::get_subindex(ID p_id) const { + ERR_FAIL_COND_V(!p_id, 0); return bvh.get_subindex(p_id - 1); } diff --git a/servers/rendering/renderer_rd/shaders/scene_forward_clustered.glsl b/servers/rendering/renderer_rd/shaders/scene_forward_clustered.glsl index 33b0ee5fae..4e6e50bc44 100644 --- a/servers/rendering/renderer_rd/shaders/scene_forward_clustered.glsl +++ b/servers/rendering/renderer_rd/shaders/scene_forward_clustered.glsl @@ -453,7 +453,7 @@ layout(location = 9) in flat uint instance_index_interp; //defines to keep compatibility with vertex -#define model_matrix instances.data[instance_index].transform +#define model_matrix instances.data[draw_call.instance_index].transform #ifdef USE_MULTIVIEW #define projection_matrix scene_data.projection_matrix_view[ViewIndex] #define inv_projection_matrix scene_data.inv_projection_matrix_view[ViewIndex] diff --git a/tests/core/io/test_resource.h b/tests/core/io/test_resource.h index b3983bb06d..84d651b63f 100644 --- a/tests/core/io/test_resource.h +++ b/tests/core/io/test_resource.h @@ -69,7 +69,7 @@ TEST_CASE("[Resource] Duplication") { TEST_CASE("[Resource] Saving and loading") { Ref<Resource> resource = memnew(Resource); resource->set_name("Hello world"); - resource->set_meta(" ExampleMetadata ", Vector2i(40, 80)); + resource->set_meta("ExampleMetadata", Vector2i(40, 80)); resource->set_meta("string", "The\nstring\nwith\nunnecessary\nline\n\t\\\nbreaks"); Ref<Resource> child_resource = memnew(Resource); child_resource->set_name("I'm a child resource"); @@ -84,7 +84,7 @@ TEST_CASE("[Resource] Saving and loading") { loaded_resource_binary->get_name() == "Hello world", "The loaded resource name should be equal to the expected value."); CHECK_MESSAGE( - loaded_resource_binary->get_meta(" ExampleMetadata ") == Vector2i(40, 80), + loaded_resource_binary->get_meta("ExampleMetadata") == Vector2i(40, 80), "The loaded resource metadata should be equal to the expected value."); CHECK_MESSAGE( loaded_resource_binary->get_meta("string") == "The\nstring\nwith\nunnecessary\nline\n\t\\\nbreaks", @@ -99,7 +99,7 @@ TEST_CASE("[Resource] Saving and loading") { loaded_resource_text->get_name() == "Hello world", "The loaded resource name should be equal to the expected value."); CHECK_MESSAGE( - loaded_resource_text->get_meta(" ExampleMetadata ") == Vector2i(40, 80), + loaded_resource_text->get_meta("ExampleMetadata") == Vector2i(40, 80), "The loaded resource metadata should be equal to the expected value."); CHECK_MESSAGE( loaded_resource_text->get_meta("string") == "The\nstring\nwith\nunnecessary\nline\n\t\\\nbreaks", diff --git a/tests/core/object/test_object.h b/tests/core/object/test_object.h index e44b93bb66..5b9d9cab53 100644 --- a/tests/core/object/test_object.h +++ b/tests/core/object/test_object.h @@ -133,7 +133,7 @@ TEST_CASE("[Object] Core getters") { } TEST_CASE("[Object] Metadata") { - const String meta_path = "hello/world complex métadata\n\n\t\tpath"; + const String meta_path = "complex_metadata_path"; Object object; object.set_meta(meta_path, Color(0, 1, 0)); diff --git a/thirdparty/README.md b/thirdparty/README.md index 2b90fb1657..ced1165d69 100644 --- a/thirdparty/README.md +++ b/thirdparty/README.md @@ -20,7 +20,7 @@ Files extracted from upstream source: ## basis_universal - Upstream: https://github.com/BinomialLLC/basis_universal -- Version: git (646a9f826131cb0b9e14b5e4740874808315f83a, 2021) +- Version: git (1531cfaf9ed5232248a0a45736686a849ca3befc, 2022) - License: Apache 2.0 Files extracted from upstream source: @@ -130,25 +130,25 @@ Files extracted from upstream source: ## fonts -- `NotoSans*.ttf`, `NotoNaskhArabicUI_*.ttf`: +- `NotoSans*.woff2`, `NotoNaskhArabicUI_*.woff2`: * Upstream: https://github.com/googlefonts/noto-fonts * Version: v2017-10-24-phase3-second-cleanup * License: OFL-1.1 * Comment: Use UI font variant if available, because it has tight vertical metrics and good for UI. -- `JetBrainsMono_Regular.ttf`: +- `JetBrainsMono_Regular.woff2`: * Upstream: https://github.com/JetBrains/JetBrainsMono * Version: 2.242 * License: OFL-1.1 -- `DroidSans*.ttf`: +- `DroidSans*.woff2`: * Upstream: https://android.googlesource.com/platform/frameworks/base/+/master/data/fonts/ * Version: ? (pre-2014 commit when DroidSansJapanese.ttf was obsoleted) * License: Apache 2.0 -- `OpenSans_SemiBold.ttf`: +- `OpenSans_SemiBold.woff2`: * Upstream: https://fonts.google.com/specimen/Open+Sans * Version: 1.10 (downloaded from Google Fonts in February 2021) * License: Apache 2.0 - +- All fonts are converted from the `.ttf` sources using `https://github.com/google/woff2` tool. ## freetype diff --git a/thirdparty/basis_universal/encoder/apg_bmp.c b/thirdparty/basis_universal/encoder/apg_bmp.c deleted file mode 100644 index d342b20fc8..0000000000 --- a/thirdparty/basis_universal/encoder/apg_bmp.c +++ /dev/null @@ -1,541 +0,0 @@ -/* -BMP File Reader/Writer Implementation -Anton Gerdelan -Version: 3 -Licence: see apg_bmp.h -C99 -*/ - -#ifdef _MSC_VER -#define _CRT_SECURE_NO_WARNINGS 1 -#endif - -#include "apg_bmp.h" -#include <assert.h> -#include <stdbool.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -/* Maximum pixel dimensions of width or height of an image. Should accommodate max used in graphics APIs. - NOTE: 65536*65536 is the biggest number storable in 32 bits. - This needs to be multiplied by n_channels so actual memory indices are not uint32 but size_t to avoid overflow. - Note this will crash stb_image_write et al at maximum size which use 32bits, so reduce max size to accom. */ -#define _BMP_MAX_DIMS 65536 -#define _BMP_FILE_HDR_SZ 14 -#define _BMP_MIN_DIB_HDR_SZ 40 -#define _BMP_MIN_HDR_SZ ( _BMP_FILE_HDR_SZ + _BMP_MIN_DIB_HDR_SZ ) -#define _BMP_MAX_IMAGE_FILE_SIZE (1024ULL*1024ULL*1024ULL) - -#pragma pack( push, 1 ) // supported on GCC in addition to individual packing attribs -/* All BMP files, regardless of type, start with this file header */ -typedef struct _bmp_file_header_t { - char file_type[2]; - uint32_t file_sz; - uint16_t reserved1; - uint16_t reserved2; - uint32_t image_data_offset; -} _bmp_file_header_t; - -/* Following the file header is the BMP type header. this is the most commonly used format */ -typedef struct _bmp_dib_BITMAPINFOHEADER_t { - uint32_t this_header_sz; - int32_t w; // in older headers w & h these are shorts and may be unsigned - int32_t h; // - uint16_t n_planes; // must be 1 - uint16_t bpp; // bits per pixel. 1,4,8,16,24,32. - uint32_t compression_method; // 16 and 32-bit images must have a value of 3 here - uint32_t image_uncompressed_sz; // not consistently used in the wild, so ignored here. - int32_t horiz_pixels_per_meter; // not used. - int32_t vert_pixels_per_meter; // not used. - uint32_t n_colours_in_palette; // - uint32_t n_important_colours; // not used. - /* NOTE(Anton) a DIB header may end here at 40-bytes. be careful using sizeof() */ - /* if 'compression' value, above, is set to 3 ie the image is 16 or 32-bit, then these colour channel masks follow the headers. - these are big-endian order bit masks to assign bits of each pixel to different colours. bits used must be contiguous and not overlap. */ - uint32_t bitmask_r; - uint32_t bitmask_g; - uint32_t bitmask_b; -} _bmp_dib_BITMAPINFOHEADER_t; -#pragma pack( pop ) - -typedef enum _bmp_compression_t { - BI_RGB = 0, - BI_RLE8 = 1, - BI_RLE4 = 2, - BI_BITFIELDS = 3, - BI_JPEG = 4, - BI_PNG = 5, - BI_ALPHABITFIELDS = 6, - BI_CMYK = 11, - BI_CMYKRLE8 = 12, - BI_CMYRLE4 = 13 -} _bmp_compression_t; - -/* convenience struct and file->memory function */ -typedef struct _entire_file_t { - void* data; - size_t sz; -} _entire_file_t; - -/* -RETURNS -- true on success. record->data is allocated memory and must be freed by the caller. -- false on any error. Any allocated memory is freed if false is returned */ -static bool _read_entire_file( const char* filename, _entire_file_t* record ) { - FILE* fp = fopen( filename, "rb" ); - if ( !fp ) { return false; } - fseek( fp, 0L, SEEK_END ); - record->sz = (size_t)ftell( fp ); - - // Immediately bail on anything larger than _BMP_MAX_IMAGE_FILE_SIZE. - if (record->sz > _BMP_MAX_IMAGE_FILE_SIZE) { - fclose( fp ); - return false; - } - - record->data = malloc( record->sz ); - if ( !record->data ) { - fclose( fp ); - return false; - } - rewind( fp ); - size_t nr = fread( record->data, record->sz, 1, fp ); - fclose( fp ); - if ( 1 != nr ) { return false; } - return true; -} - -static bool _validate_file_hdr( _bmp_file_header_t* file_hdr_ptr, size_t file_sz ) { - if ( !file_hdr_ptr ) { return false; } - if ( file_hdr_ptr->file_type[0] != 'B' || file_hdr_ptr->file_type[1] != 'M' ) { return false; } - if ( file_hdr_ptr->image_data_offset > file_sz ) { return false; } - return true; -} - -static bool _validate_dib_hdr( _bmp_dib_BITMAPINFOHEADER_t* dib_hdr_ptr, size_t file_sz ) { - if ( !dib_hdr_ptr ) { return false; } - if ( _BMP_FILE_HDR_SZ + dib_hdr_ptr->this_header_sz > file_sz ) { return false; } - if ( ( 32 == dib_hdr_ptr->bpp || 16 == dib_hdr_ptr->bpp ) && ( BI_BITFIELDS != dib_hdr_ptr->compression_method && BI_ALPHABITFIELDS != dib_hdr_ptr->compression_method ) ) { - return false; - } - if ( BI_RGB != dib_hdr_ptr->compression_method && BI_BITFIELDS != dib_hdr_ptr->compression_method && BI_ALPHABITFIELDS != dib_hdr_ptr->compression_method ) { - return false; - } - // NOTE(Anton) using abs() in the if-statement was blowing up on large negative numbers. switched to labs() - if ( 0 == dib_hdr_ptr->w || 0 == dib_hdr_ptr->h || labs( dib_hdr_ptr->w ) > _BMP_MAX_DIMS || labs( dib_hdr_ptr->h ) > _BMP_MAX_DIMS ) { return false; } - - /* NOTE(Anton) if images reliably used n_colours_in_palette we could have done a palette/file size integrity check here. - because some always set 0 then we have to check every palette indexing as we read them */ - return true; -} - -/* NOTE(Anton) this could have ifdef branches on different compilers for the intrinsics versions for perf */ -static uint32_t _bitscan( uint32_t dword ) { - for ( uint32_t i = 0; i < 32; i++ ) { - if ( 1 & dword ) { return i; } - dword = dword >> 1; - } - return (uint32_t)-1; -} - -unsigned char* apg_bmp_read( const char* filename, int* w, int* h, unsigned int* n_chans ) { - if ( !filename || !w || !h || !n_chans ) { return NULL; } - - // read in the whole file into memory first - much faster than parsing on-the-fly - _entire_file_t record; - if ( !_read_entire_file( filename, &record ) ) { return NULL; } - if ( record.sz < _BMP_MIN_HDR_SZ ) { - free( record.data ); - return NULL; - } - - // grab and validate the first, file, header - _bmp_file_header_t* file_hdr_ptr = (_bmp_file_header_t*)record.data; - if ( !_validate_file_hdr( file_hdr_ptr, record.sz ) ) { - free( record.data ); - return NULL; - } - - // grad and validate the second, DIB, header - _bmp_dib_BITMAPINFOHEADER_t* dib_hdr_ptr = (_bmp_dib_BITMAPINFOHEADER_t*)( (uint8_t*)record.data + _BMP_FILE_HDR_SZ ); - if ( !_validate_dib_hdr( dib_hdr_ptr, record.sz ) ) { - free( record.data ); - return NULL; - } - - // bitmaps can have negative dims to indicate the image should be flipped - uint32_t width = *w = abs( dib_hdr_ptr->w ); - uint32_t height = *h = abs( dib_hdr_ptr->h ); - - // TODO(Anton) flip image memory at the end if this is true. because doing it per row was making me write bugs. - // bool vertically_flip = dib_hdr_ptr->h > 0 ? false : true; - - // channel count and palette are not well defined in the header so we make a good guess here - uint32_t n_dst_chans = 3, n_src_chans = 3; - bool has_palette = false; - switch ( dib_hdr_ptr->bpp ) { - case 32: n_dst_chans = n_src_chans = 4; break; // technically can be RGB but not supported - case 24: n_dst_chans = n_src_chans = 3; break; // technically can be RGBA but not supported - case 8: // seems to always use a BGR0 palette, even for greyscale - n_dst_chans = 3; - has_palette = true; - n_src_chans = 1; - break; - case 4: // always has a palette - needed for a MS-saved BMP - n_dst_chans = 3; - has_palette = true; - n_src_chans = 1; - break; - case 1: // 1-bpp means the palette has 3 colour channels with 2 colours i.e. monochrome but not always black & white - n_dst_chans = 3; - has_palette = true; - n_src_chans = 1; - break; - default: // this includes 2bpp and 16bpp - free( record.data ); - return NULL; - } // endswitch - *n_chans = n_dst_chans; - // NOTE(Anton) some image formats are not allowed a palette - could check for a bad header spec here also - if ( dib_hdr_ptr->n_colours_in_palette > 0 ) { has_palette = true; } - -#ifdef APG_BMP_DEBUG_OUTPUT - printf( "apg_bmp_debug: reading image\n|-filename `%s`\n|-dims %ux%u pixels\n|-bpp %u\n|-n_src_chans %u\n|-n_dst_chans %u\n", filename, *w, *h, - dib_hdr_ptr->bpp, n_src_chans, n_dst_chans ); -#endif - - uint32_t palette_offset = _BMP_FILE_HDR_SZ + dib_hdr_ptr->this_header_sz; - bool has_bitmasks = false; - if ( BI_BITFIELDS == dib_hdr_ptr->compression_method || BI_ALPHABITFIELDS == dib_hdr_ptr->compression_method ) { - has_bitmasks = true; - palette_offset += 12; - } - if ( palette_offset > record.sz ) { - free( record.data ); - return NULL; - } - - // work out if any padding how much to skip at end of each row - uint32_t unpadded_row_sz = width * n_src_chans; - // bit-encoded palette indices have different padding properties - if ( 4 == dib_hdr_ptr->bpp ) { - unpadded_row_sz = width % 2 > 0 ? width / 2 + 1 : width / 2; // find how many whole bytes required for this bit width - } - if ( 1 == dib_hdr_ptr->bpp ) { - unpadded_row_sz = width % 8 > 0 ? width / 8 + 1 : width / 8; // find how many whole bytes required for this bit width - } - uint32_t row_padding_sz = 0 == unpadded_row_sz % 4 ? 0 : 4 - ( unpadded_row_sz % 4 ); // NOTE(Anton) didn't expect operator precedence of - over % - - // another file size integrity check: partially validate source image data size - // 'image_data_offset' is by row padded to 4 bytes and is either colour data or palette indices. - if ( file_hdr_ptr->image_data_offset + ( unpadded_row_sz + row_padding_sz ) * height > record.sz ) { - free( record.data ); - return NULL; - } - - // find which bit number each colour channel starts at, so we can separate colours out - uint32_t bitshift_rgba[4] = {0, 0, 0, 0}; // NOTE(Anton) noticed this was int and not uint32_t so changed it. 17 Mar 2020 - uint32_t bitmask_a = 0; - if ( has_bitmasks ) { - bitmask_a = ~( dib_hdr_ptr->bitmask_r | dib_hdr_ptr->bitmask_g | dib_hdr_ptr->bitmask_b ); - bitshift_rgba[0] = _bitscan( dib_hdr_ptr->bitmask_r ); - bitshift_rgba[1] = _bitscan( dib_hdr_ptr->bitmask_g ); - bitshift_rgba[2] = _bitscan( dib_hdr_ptr->bitmask_b ); - bitshift_rgba[3] = _bitscan( bitmask_a ); - } - - // allocate memory for the output pixels block. cast to size_t in case width and height are both the max of 65536 and n_dst_chans > 1 - unsigned char* dst_img_ptr = (unsigned char*)malloc( (size_t)width * (size_t)height * (size_t)n_dst_chans ); - if ( !dst_img_ptr ) { - free( record.data ); - return NULL; - } - - uint8_t* palette_data_ptr = (uint8_t*)record.data + palette_offset; - uint8_t* src_img_ptr = (uint8_t*)record.data + file_hdr_ptr->image_data_offset; - size_t dst_stride_sz = width * n_dst_chans; - - // == 32-bpp -> 32-bit RGBA. == 32-bit and 16-bit require bitmasks - if ( 32 == dib_hdr_ptr->bpp ) { - // check source image has enough data in it to read from - if ( (size_t)file_hdr_ptr->image_data_offset + (size_t)height * (size_t)width * (size_t)n_src_chans > record.sz ) { - free( record.data ); - free( dst_img_ptr ); - return NULL; - } - size_t src_byte_idx = 0; - for ( uint32_t r = 0; r < height; r++ ) { - size_t dst_pixels_idx = r * dst_stride_sz; - for ( uint32_t c = 0; c < width; c++ ) { - uint32_t pixel; - memcpy( &pixel, &src_img_ptr[src_byte_idx], 4 ); - // NOTE(Anton) the below assumes 32-bits is always RGBA 1 byte per channel. 10,10,10 RGB exists though and isn't handled. - dst_img_ptr[dst_pixels_idx++] = ( uint8_t )( ( pixel & dib_hdr_ptr->bitmask_r ) >> bitshift_rgba[0] ); - dst_img_ptr[dst_pixels_idx++] = ( uint8_t )( ( pixel & dib_hdr_ptr->bitmask_g ) >> bitshift_rgba[1] ); - dst_img_ptr[dst_pixels_idx++] = ( uint8_t )( ( pixel & dib_hdr_ptr->bitmask_b ) >> bitshift_rgba[2] ); - dst_img_ptr[dst_pixels_idx++] = ( uint8_t )( ( pixel & bitmask_a ) >> bitshift_rgba[3] ); - src_byte_idx += 4; - } - src_byte_idx += row_padding_sz; - } - - // == 8-bpp -> 24-bit RGB == - } else if ( 8 == dib_hdr_ptr->bpp && has_palette ) { - // validate indices (body of image data) fits in file - if ( file_hdr_ptr->image_data_offset + height * width > record.sz ) { - free( record.data ); - free( dst_img_ptr ); - return NULL; - } - size_t src_byte_idx = 0; - for ( uint32_t r = 0; r < height; r++ ) { - size_t dst_pixels_idx = ( height - 1 - r ) * dst_stride_sz; - for ( uint32_t c = 0; c < width; c++ ) { - // "most palettes are 4 bytes in RGB0 order but 3 for..." - it was actually BRG0 in old images -- Anton - uint8_t index = src_img_ptr[src_byte_idx]; // 8-bit index value per pixel - - if ( palette_offset + index * 4 + 2 >= record.sz ) { - free( record.data ); - return dst_img_ptr; - } - dst_img_ptr[dst_pixels_idx++] = palette_data_ptr[index * 4 + 2]; - dst_img_ptr[dst_pixels_idx++] = palette_data_ptr[index * 4 + 1]; - dst_img_ptr[dst_pixels_idx++] = palette_data_ptr[index * 4 + 0]; - src_byte_idx++; - } - src_byte_idx += row_padding_sz; - } - - // == 4-bpp (16-colour) -> 24-bit RGB == - } else if ( 4 == dib_hdr_ptr->bpp && has_palette ) { - size_t src_byte_idx = 0; - for ( uint32_t r = 0; r < height; r++ ) { - size_t dst_pixels_idx = ( height - 1 - r ) * dst_stride_sz; - for ( uint32_t c = 0; c < width; c++ ) { - if ( file_hdr_ptr->image_data_offset + src_byte_idx > record.sz ) { - free( record.data ); - free( dst_img_ptr ); - return NULL; - } - // handle 2 pixels at a time - uint8_t pixel_duo = src_img_ptr[src_byte_idx]; - uint8_t a_index = ( 0xFF & pixel_duo ) >> 4; - uint8_t b_index = 0xF & pixel_duo; - - if ( palette_offset + a_index * 4 + 2 >= record.sz ) { // invalid src image - free( record.data ); - return dst_img_ptr; - } - if ( dst_pixels_idx + 3 > width * height * n_dst_chans ) { // done - free( record.data ); - return dst_img_ptr; - } - dst_img_ptr[dst_pixels_idx++] = palette_data_ptr[a_index * 4 + 2]; - dst_img_ptr[dst_pixels_idx++] = palette_data_ptr[a_index * 4 + 1]; - dst_img_ptr[dst_pixels_idx++] = palette_data_ptr[a_index * 4 + 0]; - if ( ++c >= width ) { // advance a column - c = 0; - r++; - if ( r >= height ) { // done. no need to get second pixel. eg a 1x1 pixel image. - free( record.data ); - return dst_img_ptr; - } - dst_pixels_idx = ( height - 1 - r ) * dst_stride_sz; - } - - if ( palette_offset + b_index * 4 + 2 >= record.sz ) { // invalid src image - free( record.data ); - return dst_img_ptr; - } - if ( dst_pixels_idx + 3 > width * height * n_dst_chans ) { // done. probably redundant check since checking r >= height. - free( record.data ); - return dst_img_ptr; - } - dst_img_ptr[dst_pixels_idx++] = palette_data_ptr[b_index * 4 + 2]; - dst_img_ptr[dst_pixels_idx++] = palette_data_ptr[b_index * 4 + 1]; - dst_img_ptr[dst_pixels_idx++] = palette_data_ptr[b_index * 4 + 0]; - src_byte_idx++; - } - src_byte_idx += row_padding_sz; - } - - // == 1-bpp -> 24-bit RGB == - } else if ( 1 == dib_hdr_ptr->bpp && has_palette ) { - /* encoding method for monochrome is not well documented. - a 2x2 pixel image is stored as 4 1-bit palette indexes - the palette is stored as any 2 RGB0 colours (not necessarily B&W) - so for an image with indexes like so: - 1 1 - 0 1 - it is bit-encoded as follows, starting at MSB: - 01000000 00000000 00000000 00000000 (first byte val 64) - 11000000 00000000 00000000 00000000 (first byte val 192) - data is still split by row and each row padded to 4 byte multiples - */ - size_t src_byte_idx = 0; - for ( uint32_t r = 0; r < height; r++ ) { - uint8_t bit_idx = 0; // used in monochrome - size_t dst_pixels_idx = ( height - 1 - r ) * dst_stride_sz; - for ( uint32_t c = 0; c < width; c++ ) { - if ( 8 == bit_idx ) { // start reading from the next byte - src_byte_idx++; - bit_idx = 0; - } - if ( file_hdr_ptr->image_data_offset + src_byte_idx > record.sz ) { - free( record.data ); - return dst_img_ptr; - } - uint8_t pixel_oct = src_img_ptr[src_byte_idx]; - uint8_t bit = 128 >> bit_idx; - uint8_t masked = pixel_oct & bit; - uint8_t palette_idx = masked > 0 ? 1 : 0; - - if ( palette_offset + palette_idx * 4 + 2 >= record.sz ) { - free( record.data ); - return dst_img_ptr; - } - dst_img_ptr[dst_pixels_idx++] = palette_data_ptr[palette_idx * 4 + 2]; - dst_img_ptr[dst_pixels_idx++] = palette_data_ptr[palette_idx * 4 + 1]; - dst_img_ptr[dst_pixels_idx++] = palette_data_ptr[palette_idx * 4 + 0]; - bit_idx++; - } - src_byte_idx += ( row_padding_sz + 1 ); // 1bpp is special here - } - - // == 24-bpp -> 24-bit RGB == (but also should handle some other n_chans cases) - } else { - // NOTE(Anton) this only supports 1 byte per channel - if ( file_hdr_ptr->image_data_offset + height * width * n_dst_chans > record.sz ) { - free( record.data ); - free( dst_img_ptr ); - return NULL; - } - size_t src_byte_idx = 0; - for ( uint32_t r = 0; r < height; r++ ) { - size_t dst_pixels_idx = ( height - 1 - r ) * dst_stride_sz; - for ( uint32_t c = 0; c < width; c++ ) { - // re-orders from BGR to RGB - if ( n_dst_chans > 3 ) { dst_img_ptr[dst_pixels_idx++] = src_img_ptr[src_byte_idx + 3]; } - if ( n_dst_chans > 2 ) { dst_img_ptr[dst_pixels_idx++] = src_img_ptr[src_byte_idx + 2]; } - if ( n_dst_chans > 1 ) { dst_img_ptr[dst_pixels_idx++] = src_img_ptr[src_byte_idx + 1]; } - dst_img_ptr[dst_pixels_idx++] = src_img_ptr[src_byte_idx]; - src_byte_idx += n_src_chans; - } - src_byte_idx += row_padding_sz; - } - } // endif bpp - - free( record.data ); - return dst_img_ptr; -} - -void apg_bmp_free( unsigned char* pixels_ptr ) { - if ( !pixels_ptr ) { return; } - free( pixels_ptr ); -} - -unsigned int apg_bmp_write( const char* filename, unsigned char* pixels_ptr, int w, int h, unsigned int n_chans ) { - if ( !filename || !pixels_ptr ) { return 0; } - if ( 0 == w || 0 == h ) { return 0; } - if ( labs( w ) > _BMP_MAX_DIMS || labs( h ) > _BMP_MAX_DIMS ) { return 0; } - if ( n_chans != 3 && n_chans != 4 ) { return 0; } - - uint32_t height = (uint32_t)labs( h ); - uint32_t width = (uint32_t)labs( w ); - // work out if any padding how much to skip at end of each row - const size_t unpadded_row_sz = width * n_chans; - const size_t row_padding_sz = 0 == unpadded_row_sz % 4 ? 0 : 4 - unpadded_row_sz % 4; - const size_t row_sz = unpadded_row_sz + row_padding_sz; - const size_t dst_pixels_padded_sz = row_sz * height; - - const size_t dib_hdr_sz = sizeof( _bmp_dib_BITMAPINFOHEADER_t ); - _bmp_file_header_t file_hdr; - { - file_hdr.file_type[0] = 'B'; - file_hdr.file_type[1] = 'M'; - file_hdr.file_sz = _BMP_FILE_HDR_SZ + (uint32_t)dib_hdr_sz + (uint32_t)dst_pixels_padded_sz; - file_hdr.reserved1 = 0; - file_hdr.reserved2 = 0; - file_hdr.image_data_offset = _BMP_FILE_HDR_SZ + (uint32_t)dib_hdr_sz; - } - _bmp_dib_BITMAPINFOHEADER_t dib_hdr; - { - dib_hdr.this_header_sz = _BMP_MIN_DIB_HDR_SZ; // NOTE: must be 40 and not include the bitmask memory in size here - dib_hdr.w = w; - dib_hdr.h = h; - dib_hdr.n_planes = 1; - dib_hdr.bpp = 3 == n_chans ? 24 : 32; - dib_hdr.compression_method = 3 == n_chans ? BI_RGB : BI_BITFIELDS; - dib_hdr.image_uncompressed_sz = 0; - dib_hdr.horiz_pixels_per_meter = 0; - dib_hdr.vert_pixels_per_meter = 0; - dib_hdr.n_colours_in_palette = 0; - dib_hdr.n_important_colours = 0; - // big-endian masks. only used in BI_BITFIELDS and BI_ALPHABITFIELDS ( 16 and 32-bit images ) - // important note: GIMP stores BMP data in this array order for 32-bit: [A][B][G][R] - dib_hdr.bitmask_r = 0xFF000000; - dib_hdr.bitmask_g = 0x00FF0000; - dib_hdr.bitmask_b = 0x0000FF00; - } - - uint8_t* dst_pixels_ptr = (uint8_t*)malloc( dst_pixels_padded_sz ); - if ( !dst_pixels_ptr ) { return 0; } - { - size_t dst_byte_idx = 0; - uint8_t padding[4] = {0, 0, 0, 0}; - uint8_t rgba[4] = {0, 0, 0, 0}; - uint8_t bgra[4] = {0, 0, 0, 0}; - - for ( uint32_t row = 0; row < height; row++ ) { - size_t src_byte_idx = ( height - 1 - row ) * n_chans * width; - for ( uint32_t col = 0; col < width; col++ ) { - for ( uint32_t chan = 0; chan < n_chans; chan++ ) { rgba[chan] = pixels_ptr[src_byte_idx++]; } - if ( 3 == n_chans ) { - bgra[0] = rgba[2]; - bgra[1] = rgba[1]; - bgra[2] = rgba[0]; - } else { - /* NOTE(Anton) RGBA with alpha channel would be better supported with an extended DIB header */ - bgra[0] = rgba[3]; - bgra[1] = rgba[2]; - bgra[2] = rgba[1]; - bgra[3] = rgba[0]; // alpha - } - memcpy( &dst_pixels_ptr[dst_byte_idx], bgra, n_chans ); - dst_byte_idx += (size_t)n_chans; - } // endfor col - if ( row_padding_sz > 0 ) { - memcpy( &dst_pixels_ptr[dst_byte_idx], padding, row_padding_sz ); - dst_byte_idx += row_padding_sz; - } - } // endfor row - } - { - FILE* fp = fopen( filename, "wb" ); - if ( !fp ) { - free( dst_pixels_ptr ); - return 0; - } - if ( 1 != fwrite( &file_hdr, _BMP_FILE_HDR_SZ, 1, fp ) ) { - free( dst_pixels_ptr ); - fclose( fp ); - return 0; - } - if ( 1 != fwrite( &dib_hdr, dib_hdr_sz, 1, fp ) ) { - free( dst_pixels_ptr ); - fclose( fp ); - return 0; - } - if ( 1 != fwrite( dst_pixels_ptr, dst_pixels_padded_sz, 1, fp ) ) { - free( dst_pixels_ptr ); - fclose( fp ); - return 0; - } - fclose( fp ); - } - free( dst_pixels_ptr ); - - return 1; -} diff --git a/thirdparty/basis_universal/encoder/apg_bmp.h b/thirdparty/basis_universal/encoder/apg_bmp.h deleted file mode 100644 index 8cd73b62e0..0000000000 --- a/thirdparty/basis_universal/encoder/apg_bmp.h +++ /dev/null @@ -1,123 +0,0 @@ -/* -BMP File Reader/Writer Implementation -Anton Gerdelan -Version: 3.1 18 March 2020. -Licence: see bottom of file. -C89 ( Implementation is C99 ) - -Contributors: -- Anton Gerdelan - Initial code. -- Saija Sorsa - Fuzz testing. - -Instructions: -- Just drop this header, and the matching .c file into your project. -- To get debug printouts during parsing define APG_BMP_DEBUG_OUTPUT. - -Advantages: -- The implementation is fast, simple, and supports more formats than most BMP reader libraries. -- The reader function is fuzzed with AFL https://lcamtuf.coredump.cx/afl/. -- The reader is robust to large files and malformed files, and will return any valid partial data in an image. -- Reader supports 32bpp (with alpha channel), 24bpp, 8bpp, 4bpp, and 1bpp monochrome BMP images. -- Reader handles indexed BMP images using a colour palette. -- Writer supports 32bpp RGBA and 24bpp uncompressed RGB images. - -Current Limitations: -- 16-bit images not supported (don't have any samples to test on). -- No support for interleaved channel bit layouts eg RGB101010 RGB555 RGB565. -- No support for compressed BMP images, although in practice these are not used. -- Output images with alpha channel are written in BITMAPINFOHEADER format. - For better alpha support in other apps the 124-bit v5 header could be used instead, - at the cost of some backward compatibility and bloat. - -To Do: -- FUZZING - - create a unique fuzz test set for (8,4,1 BPP). -- (maybe) FEATURE Flipping the image based on negative width and height in header, and/or function arguments. -- (maybe) PERF ifdef intrinsics/asm for bitscan. Platform-specific code so won't include unless necessary. -- (maybe) FEATURE Add parameter for padding output memory to eg 4-byte alignment or n channels. -- (maybe) FEATURE Improved apps support in alpha channel writing (using v5 header). -*/ - -#ifndef APG_BMP_H_ -#define APG_BMP_H_ - -#ifdef __cplusplus -extern "C" { -#endif /* CPP */ - -/* Reads a bitmap from a file, allocates memory for the raw image data, and returns it. -PARAMS - * w,h, - Retrieves the width and height of the BMP in pixels. - * n_chans - Retrieves the number of channels in the BMP. -RETURNS - * Tightly-packed pixel memory in RGBA order. The caller must call free() on the memory. - * NULL on any error. Any allocated memory is freed before returning NULL. */ -unsigned char* apg_bmp_read( const char* filename, int* w, int* h, unsigned int* n_chans ); - -/* Calls free() on memory created by apg_bmp_read */ -void apg_bmp_free( unsigned char* pixels_ptr ); - -/* Writes a bitmap to a file. -PARAMS - * filename - e.g."my_bitmap.bmp". Must not be NULL. - * pixels_ptr - Pointer to tightly-packed pixel memory in RGBA order. Must not be NULL. There must be abs(w)*abs(h)*n_chans bytes in the memory pointed to. - * w,h, - Width and height of the image in pixels. - * n_chans - The number of channels in the BMP. 3 or 4 supported for writing, which means RGB or RGBA memory, respectively. -RETURNS - * Zero on any error, non zero on success. */ -unsigned int apg_bmp_write( const char* filename, unsigned char* pixels_ptr, int w, int h, unsigned int n_chans ); - -#ifdef __cplusplus -} -#endif /* CPP */ - -#endif /*_APG_BMP_H_ */ - -/* -------------------------------------------------------------------------------------- -This software is available under two licences - you may use it under either licence. -------------------------------------------------------------------------------------- -FIRST LICENCE OPTION - -> Apache License -> Version 2.0, January 2004 -> http://www.apache.org/licenses/ -> Copyright 2019 Anton Gerdelan. -> Licensed under the Apache License, Version 2.0 (the "License"); -> you may not use this file except in compliance with the License. -> You may obtain a copy of the License at -> http://www.apache.org/licenses/LICENSE-2.0 -> Unless required by applicable law or agreed to in writing, software -> distributed under the License is distributed on an "AS IS" BASIS, -> WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -> See the License for the specific language governing permissions and -> limitations under the License. -------------------------------------------------------------------------------------- -SECOND LICENCE OPTION - -> This is free and unencumbered software released into the public domain. -> -> Anyone is free to copy, modify, publish, use, compile, sell, or -> distribute this software, either in source code form or as a compiled -> binary, for any purpose, commercial or non-commercial, and by any -> means. -> -> In jurisdictions that recognize copyright laws, the author or authors -> of this software dedicate any and all copyright interest in the -> software to the public domain. We make this dedication for the benefit -> of the public at large and to the detriment of our heirs and -> successors. We intend this dedication to be an overt act of -> relinquishment in perpetuity of all present and future rights to this -> software under copyright law. -> -> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -> EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -> MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -> IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR -> OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, -> ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR -> OTHER DEALINGS IN THE SOFTWARE. -> -> For more information, please refer to <http://unlicense.org> -------------------------------------------------------------------------------------- -*/ diff --git a/thirdparty/basis_universal/encoder/basisu_astc_decomp.cpp b/thirdparty/basis_universal/encoder/basisu_astc_decomp.cpp deleted file mode 100644 index 53bccfc515..0000000000 --- a/thirdparty/basis_universal/encoder/basisu_astc_decomp.cpp +++ /dev/null @@ -1,1561 +0,0 @@ -// basisu_astc_decomp.cpp: Only used for ASTC decompression, to validate the transcoder's output. -// This version does not support HDR. - -/*------------------------------------------------------------------------- - * drawElements Quality Program Tester Core - * ---------------------------------------- - * - * Copyright 2016 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * rg: Removed external dependencies, remarked out HDR support because - * we don't need it, minor fix to decompress() so it converts non-sRGB - * output to 8-bits correctly. I've compared this decoder's output - * vs. astc-codec with random inputs on 4x4 blocks, and after fixing a few obvious - * bugs in astc-codec where it didn't correctly follow the spec they match so - * I'm assuming they are both correct for 4x4 now. - * HDR support should be easily added back in, but as we don't need it - * I'm leaving this for someone else. - * - *//*! - * \file - * \brief ASTC Utilities. - *//*--------------------------------------------------------------------*/ -#include "basisu_astc_decomp.h" -#include <assert.h> -#include <algorithm> - -#define DE_LENGTH_OF_ARRAY(x) (sizeof(x)/sizeof(x[0])) -#define DE_UNREF(x) (void)x - -typedef uint8_t deUint8; -typedef int8_t deInt8; -typedef uint32_t deUint32; -typedef int32_t deInt32; -typedef uint16_t deUint16; -typedef int16_t deInt16; -typedef int64_t deInt64; -typedef uint64_t deUint64; - -#define DE_ASSERT assert - -#ifdef _MSC_VER -#pragma warning (disable:4505) // unreferenced local function has been removed -#elif defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wunused-function" -#endif - -namespace basisu_astc -{ - static bool inBounds(int v, int l, int h) - { - return (v >= l) && (v < h); - } - - static bool inRange(int v, int l, int h) - { - return (v >= l) && (v <= h); - } - - template<typename T> - static inline T max(T a, T b) - { - return (a > b) ? a : b; - } - - template<typename T> - static inline T min(T a, T b) - { - return (a < b) ? a : b; - } - - template<typename T> - static inline T clamp(T a, T l, T h) - { - if (a < l) - return l; - else if (a > h) - return h; - return a; - } - - struct UVec4 - { - uint32_t m_c[4]; - - UVec4() - { - m_c[0] = 0; - m_c[1] = 0; - m_c[2] = 0; - m_c[3] = 0; - } - - UVec4(uint32_t x, uint32_t y, uint32_t z, uint32_t w) - { - m_c[0] = x; - m_c[1] = y; - m_c[2] = z; - m_c[3] = w; - } - - uint32_t x() const { return m_c[0]; } - uint32_t y() const { return m_c[1]; } - uint32_t z() const { return m_c[2]; } - uint32_t w() const { return m_c[3]; } - - uint32_t& x() { return m_c[0]; } - uint32_t& y() { return m_c[1]; } - uint32_t& z() { return m_c[2]; } - uint32_t& w() { return m_c[3]; } - - uint32_t operator[] (uint32_t idx) const { assert(idx < 4); return m_c[idx]; } - uint32_t& operator[] (uint32_t idx) { assert(idx < 4); return m_c[idx]; } - }; - - struct IVec4 - { - int32_t m_c[4]; - - IVec4() - { - m_c[0] = 0; - m_c[1] = 0; - m_c[2] = 0; - m_c[3] = 0; - } - - IVec4(int32_t x, int32_t y, int32_t z, int32_t w) - { - m_c[0] = x; - m_c[1] = y; - m_c[2] = z; - m_c[3] = w; - } - - int32_t x() const { return m_c[0]; } - int32_t y() const { return m_c[1]; } - int32_t z() const { return m_c[2]; } - int32_t w() const { return m_c[3]; } - - int32_t& x() { return m_c[0]; } - int32_t& y() { return m_c[1]; } - int32_t& z() { return m_c[2]; } - int32_t& w() { return m_c[3]; } - - UVec4 asUint() const - { - return UVec4(basisu::maximum(0, m_c[0]), basisu::maximum(0, m_c[1]), basisu::maximum(0, m_c[2]), basisu::maximum(0, m_c[3])); - } - - int32_t operator[] (uint32_t idx) const { assert(idx < 4); return m_c[idx]; } - int32_t& operator[] (uint32_t idx) { assert(idx < 4); return m_c[idx]; } - }; - - struct IVec3 - { - int32_t m_c[3]; - - IVec3() - { - m_c[0] = 0; - m_c[1] = 0; - m_c[2] = 0; - } - - IVec3(int32_t x, int32_t y, int32_t z) - { - m_c[0] = x; - m_c[1] = y; - m_c[2] = z; - } - - int32_t x() const { return m_c[0]; } - int32_t y() const { return m_c[1]; } - int32_t z() const { return m_c[2]; } - - int32_t& x() { return m_c[0]; } - int32_t& y() { return m_c[1]; } - int32_t& z() { return m_c[2]; } - - int32_t operator[] (uint32_t idx) const { assert(idx < 3); return m_c[idx]; } - int32_t& operator[] (uint32_t idx) { assert(idx < 3); return m_c[idx]; } - }; - - static uint32_t deDivRoundUp32(uint32_t a, uint32_t b) - { - return (a + b - 1) / b; - } - - static bool deInBounds32(uint32_t v, uint32_t l, uint32_t h) - { - return (v >= l) && (v < h); - } - -namespace astc -{ -using std::vector; -namespace -{ -// Common utilities -enum -{ - MAX_BLOCK_WIDTH = 12, - MAX_BLOCK_HEIGHT = 12 -}; -inline deUint32 getBit (deUint32 src, int ndx) -{ - DE_ASSERT(basisu_astc::inBounds(ndx, 0, 32)); - return (src >> ndx) & 1; -} -inline deUint32 getBits (deUint32 src, int low, int high) -{ - const int numBits = (high-low) + 1; - DE_ASSERT(basisu_astc::inRange(numBits, 1, 32)); - if (numBits < 32) - return (deUint32)((src >> low) & ((1u<<numBits)-1)); - else - return (deUint32)((src >> low) & 0xFFFFFFFFu); -} -inline bool isBitSet (deUint32 src, int ndx) -{ - return getBit(src, ndx) != 0; -} -inline deUint32 reverseBits (deUint32 src, int numBits) -{ - DE_ASSERT(basisu_astc::inRange(numBits, 0, 32)); - deUint32 result = 0; - for (int i = 0; i < numBits; i++) - result |= ((src >> i) & 1) << (numBits-1-i); - return result; -} -inline deUint32 bitReplicationScale (deUint32 src, int numSrcBits, int numDstBits) -{ - DE_ASSERT(numSrcBits <= numDstBits); - DE_ASSERT((src & ((1<<numSrcBits)-1)) == src); - deUint32 dst = 0; - for (int shift = numDstBits-numSrcBits; shift > -numSrcBits; shift -= numSrcBits) - dst |= shift >= 0 ? src << shift : src >> -shift; - return dst; -} - -inline deInt32 signExtend (deInt32 src, int numSrcBits) -{ - DE_ASSERT(basisu_astc::inRange(numSrcBits, 2, 31)); - const bool negative = (src & (1 << (numSrcBits-1))) != 0; - return src | (negative ? ~((1 << numSrcBits) - 1) : 0); -} - -//inline bool isFloat16InfOrNan (deFloat16 v) -//{ -// return getBits(v, 10, 14) == 31; -//} - -enum ISEMode -{ - ISEMODE_TRIT = 0, - ISEMODE_QUINT, - ISEMODE_PLAIN_BIT, - ISEMODE_LAST -}; -struct ISEParams -{ - ISEMode mode; - int numBits; - ISEParams (ISEMode mode_, int numBits_) : mode(mode_), numBits(numBits_) {} -}; -inline int computeNumRequiredBits (const ISEParams& iseParams, int numValues) -{ - switch (iseParams.mode) - { - case ISEMODE_TRIT: return deDivRoundUp32(numValues*8, 5) + numValues*iseParams.numBits; - case ISEMODE_QUINT: return deDivRoundUp32(numValues*7, 3) + numValues*iseParams.numBits; - case ISEMODE_PLAIN_BIT: return numValues*iseParams.numBits; - default: - DE_ASSERT(false); - return -1; - } -} -ISEParams computeMaximumRangeISEParams (int numAvailableBits, int numValuesInSequence) -{ - int curBitsForTritMode = 6; - int curBitsForQuintMode = 5; - int curBitsForPlainBitMode = 8; - while (true) - { - DE_ASSERT(curBitsForTritMode > 0 || curBitsForQuintMode > 0 || curBitsForPlainBitMode > 0); - const int tritRange = curBitsForTritMode > 0 ? (3 << curBitsForTritMode) - 1 : -1; - const int quintRange = curBitsForQuintMode > 0 ? (5 << curBitsForQuintMode) - 1 : -1; - const int plainBitRange = curBitsForPlainBitMode > 0 ? (1 << curBitsForPlainBitMode) - 1 : -1; - const int maxRange = basisu_astc::max(basisu_astc::max(tritRange, quintRange), plainBitRange); - if (maxRange == tritRange) - { - const ISEParams params(ISEMODE_TRIT, curBitsForTritMode); - if (computeNumRequiredBits(params, numValuesInSequence) <= numAvailableBits) - return ISEParams(ISEMODE_TRIT, curBitsForTritMode); - curBitsForTritMode--; - } - else if (maxRange == quintRange) - { - const ISEParams params(ISEMODE_QUINT, curBitsForQuintMode); - if (computeNumRequiredBits(params, numValuesInSequence) <= numAvailableBits) - return ISEParams(ISEMODE_QUINT, curBitsForQuintMode); - curBitsForQuintMode--; - } - else - { - const ISEParams params(ISEMODE_PLAIN_BIT, curBitsForPlainBitMode); - DE_ASSERT(maxRange == plainBitRange); - if (computeNumRequiredBits(params, numValuesInSequence) <= numAvailableBits) - return ISEParams(ISEMODE_PLAIN_BIT, curBitsForPlainBitMode); - curBitsForPlainBitMode--; - } - } -} -inline int computeNumColorEndpointValues (deUint32 endpointMode) -{ - DE_ASSERT(endpointMode < 16); - return (endpointMode/4 + 1) * 2; -} -// Decompression utilities -enum DecompressResult -{ - DECOMPRESS_RESULT_VALID_BLOCK = 0, //!< Decompressed valid block - DECOMPRESS_RESULT_ERROR, //!< Encountered error while decompressing, error color written - DECOMPRESS_RESULT_LAST -}; -// A helper for getting bits from a 128-bit block. -class Block128 -{ -private: - typedef deUint64 Word; - enum - { - WORD_BYTES = sizeof(Word), - WORD_BITS = 8*WORD_BYTES, - NUM_WORDS = 128 / WORD_BITS - }; - //DE_STATIC_ASSERT(128 % WORD_BITS == 0); -public: - Block128 (const deUint8* src) - { - for (int wordNdx = 0; wordNdx < NUM_WORDS; wordNdx++) - { - m_words[wordNdx] = 0; - for (int byteNdx = 0; byteNdx < WORD_BYTES; byteNdx++) - m_words[wordNdx] |= (Word)src[wordNdx*WORD_BYTES + byteNdx] << (8*byteNdx); - } - } - deUint32 getBit (int ndx) const - { - DE_ASSERT(basisu_astc::inBounds(ndx, 0, 128)); - return (m_words[ndx / WORD_BITS] >> (ndx % WORD_BITS)) & 1; - } - deUint32 getBits (int low, int high) const - { - DE_ASSERT(basisu_astc::inBounds(low, 0, 128)); - DE_ASSERT(basisu_astc::inBounds(high, 0, 128)); - DE_ASSERT(basisu_astc::inRange(high-low+1, 0, 32)); - if (high-low+1 == 0) - return 0; - const int word0Ndx = low / WORD_BITS; - const int word1Ndx = high / WORD_BITS; - // \note "foo << bar << 1" done instead of "foo << (bar+1)" to avoid overflow, i.e. shift amount being too big. - if (word0Ndx == word1Ndx) - return (deUint32)((m_words[word0Ndx] & ((((Word)1 << high%WORD_BITS << 1) - 1))) >> ((Word)low % WORD_BITS)); - else - { - DE_ASSERT(word1Ndx == word0Ndx + 1); - return (deUint32)(m_words[word0Ndx] >> (low%WORD_BITS)) | - (deUint32)((m_words[word1Ndx] & (((Word)1 << high%WORD_BITS << 1) - 1)) << (high-low - high%WORD_BITS)); - } - } - bool isBitSet (int ndx) const - { - DE_ASSERT(basisu_astc::inBounds(ndx, 0, 128)); - return getBit(ndx) != 0; - } -private: - Word m_words[NUM_WORDS]; -}; -// A helper for sequential access into a Block128. -class BitAccessStream -{ -public: - BitAccessStream (const Block128& src, int startNdxInSrc, int length, bool forward) - : m_src (src) - , m_startNdxInSrc (startNdxInSrc) - , m_length (length) - , m_forward (forward) - , m_ndx (0) - { - } - // Get the next num bits. Bits at positions greater than or equal to m_length are zeros. - deUint32 getNext (int num) - { - if (num == 0 || m_ndx >= m_length) - return 0; - const int end = m_ndx + num; - const int numBitsFromSrc = basisu_astc::max(0, basisu_astc::min(m_length, end) - m_ndx); - const int low = m_ndx; - const int high = m_ndx + numBitsFromSrc - 1; - m_ndx += num; - return m_forward ? m_src.getBits(m_startNdxInSrc + low, m_startNdxInSrc + high) - : reverseBits(m_src.getBits(m_startNdxInSrc - high, m_startNdxInSrc - low), numBitsFromSrc); - } -private: - const Block128& m_src; - const int m_startNdxInSrc; - const int m_length; - const bool m_forward; - int m_ndx; -}; -struct ISEDecodedResult -{ - deUint32 m; - deUint32 tq; //!< Trit or quint value, depending on ISE mode. - deUint32 v; -}; -// Data from an ASTC block's "block mode" part (i.e. bits [0,10]). -struct ASTCBlockMode -{ - bool isError; - // \note Following fields only relevant if !isError. - bool isVoidExtent; - // \note Following fields only relevant if !isVoidExtent. - bool isDualPlane; - int weightGridWidth; - int weightGridHeight; - ISEParams weightISEParams; - ASTCBlockMode (void) - : isError (true) - , isVoidExtent (true) - , isDualPlane (true) - , weightGridWidth (-1) - , weightGridHeight (-1) - , weightISEParams (ISEMODE_LAST, -1) - { - } -}; -inline int computeNumWeights (const ASTCBlockMode& mode) -{ - return mode.weightGridWidth * mode.weightGridHeight * (mode.isDualPlane ? 2 : 1); -} -struct ColorEndpointPair -{ - UVec4 e0; - UVec4 e1; -}; -struct TexelWeightPair -{ - deUint32 w[2]; -}; -ASTCBlockMode getASTCBlockMode (deUint32 blockModeData) -{ - ASTCBlockMode blockMode; - blockMode.isError = true; // \note Set to false later, if not error. - blockMode.isVoidExtent = getBits(blockModeData, 0, 8) == 0x1fc; - if (!blockMode.isVoidExtent) - { - if ((getBits(blockModeData, 0, 1) == 0 && getBits(blockModeData, 6, 8) == 7) || getBits(blockModeData, 0, 3) == 0) - return blockMode; // Invalid ("reserved"). - deUint32 r = (deUint32)-1; // \note Set in the following branches. - if (getBits(blockModeData, 0, 1) == 0) - { - const deUint32 r0 = getBit(blockModeData, 4); - const deUint32 r1 = getBit(blockModeData, 2); - const deUint32 r2 = getBit(blockModeData, 3); - const deUint32 i78 = getBits(blockModeData, 7, 8); - r = (r2 << 2) | (r1 << 1) | (r0 << 0); - if (i78 == 3) - { - const bool i5 = isBitSet(blockModeData, 5); - blockMode.weightGridWidth = i5 ? 10 : 6; - blockMode.weightGridHeight = i5 ? 6 : 10; - } - else - { - const deUint32 a = getBits(blockModeData, 5, 6); - switch (i78) - { - case 0: blockMode.weightGridWidth = 12; blockMode.weightGridHeight = a + 2; break; - case 1: blockMode.weightGridWidth = a + 2; blockMode.weightGridHeight = 12; break; - case 2: blockMode.weightGridWidth = a + 6; blockMode.weightGridHeight = getBits(blockModeData, 9, 10) + 6; break; - default: DE_ASSERT(false); - } - } - } - else - { - const deUint32 r0 = getBit(blockModeData, 4); - const deUint32 r1 = getBit(blockModeData, 0); - const deUint32 r2 = getBit(blockModeData, 1); - const deUint32 i23 = getBits(blockModeData, 2, 3); - const deUint32 a = getBits(blockModeData, 5, 6); - r = (r2 << 2) | (r1 << 1) | (r0 << 0); - if (i23 == 3) - { - const deUint32 b = getBit(blockModeData, 7); - const bool i8 = isBitSet(blockModeData, 8); - blockMode.weightGridWidth = i8 ? b+2 : a+2; - blockMode.weightGridHeight = i8 ? a+2 : b+6; - } - else - { - const deUint32 b = getBits(blockModeData, 7, 8); - switch (i23) - { - case 0: blockMode.weightGridWidth = b + 4; blockMode.weightGridHeight = a + 2; break; - case 1: blockMode.weightGridWidth = b + 8; blockMode.weightGridHeight = a + 2; break; - case 2: blockMode.weightGridWidth = a + 2; blockMode.weightGridHeight = b + 8; break; - default: DE_ASSERT(false); - } - } - } - const bool zeroDH = getBits(blockModeData, 0, 1) == 0 && getBits(blockModeData, 7, 8) == 2; - const bool h = zeroDH ? 0 : isBitSet(blockModeData, 9); - blockMode.isDualPlane = zeroDH ? 0 : isBitSet(blockModeData, 10); - { - ISEMode& m = blockMode.weightISEParams.mode; - int& b = blockMode.weightISEParams.numBits; - m = ISEMODE_PLAIN_BIT; - b = 0; - if (h) - { - switch (r) - { - case 2: m = ISEMODE_QUINT; b = 1; break; - case 3: m = ISEMODE_TRIT; b = 2; break; - case 4: b = 4; break; - case 5: m = ISEMODE_QUINT; b = 2; break; - case 6: m = ISEMODE_TRIT; b = 3; break; - case 7: b = 5; break; - default: DE_ASSERT(false); - } - } - else - { - switch (r) - { - case 2: b = 1; break; - case 3: m = ISEMODE_TRIT; break; - case 4: b = 2; break; - case 5: m = ISEMODE_QUINT; break; - case 6: m = ISEMODE_TRIT; b = 1; break; - case 7: b = 3; break; - default: DE_ASSERT(false); - } - } - } - } - blockMode.isError = false; - return blockMode; -} -inline void setASTCErrorColorBlock (void* dst, int blockWidth, int blockHeight, bool isSRGB) -{ - if (isSRGB) - { - deUint8* const dstU = (deUint8*)dst; - for (int i = 0; i < blockWidth*blockHeight; i++) - { - dstU[4*i + 0] = 0xff; - dstU[4*i + 1] = 0; - dstU[4*i + 2] = 0xff; - dstU[4*i + 3] = 0xff; - } - } - else - { - float* const dstF = (float*)dst; - for (int i = 0; i < blockWidth*blockHeight; i++) - { - dstF[4*i + 0] = 1.0f; - dstF[4*i + 1] = 0.0f; - dstF[4*i + 2] = 1.0f; - dstF[4*i + 3] = 1.0f; - } - } -} -DecompressResult decodeVoidExtentBlock (void* dst, const Block128& blockData, int blockWidth, int blockHeight, bool isSRGB, bool isLDRMode) -{ - const deUint32 minSExtent = blockData.getBits(12, 24); - const deUint32 maxSExtent = blockData.getBits(25, 37); - const deUint32 minTExtent = blockData.getBits(38, 50); - const deUint32 maxTExtent = blockData.getBits(51, 63); - const bool allExtentsAllOnes = minSExtent == 0x1fff && maxSExtent == 0x1fff && minTExtent == 0x1fff && maxTExtent == 0x1fff; - const bool isHDRBlock = blockData.isBitSet(9); - if ((isLDRMode && isHDRBlock) || (!allExtentsAllOnes && (minSExtent >= maxSExtent || minTExtent >= maxTExtent))) - { - setASTCErrorColorBlock(dst, blockWidth, blockHeight, isSRGB); - return DECOMPRESS_RESULT_ERROR; - } - const deUint32 rgba[4] = - { - blockData.getBits(64, 79), - blockData.getBits(80, 95), - blockData.getBits(96, 111), - blockData.getBits(112, 127) - }; - if (isSRGB) - { - deUint8* const dstU = (deUint8*)dst; - for (int i = 0; i < blockWidth*blockHeight; i++) - for (int c = 0; c < 4; c++) - dstU[i*4 + c] = (deUint8)((rgba[c] & 0xff00) >> 8); - } - else - { - float* const dstF = (float*)dst; - if (isHDRBlock) - { - // rg - REMOVING HDR SUPPORT FOR NOW -#if 0 - for (int c = 0; c < 4; c++) - { - if (isFloat16InfOrNan((deFloat16)rgba[c])) - throw InternalError("Infinity or NaN color component in HDR void extent block in ASTC texture (behavior undefined by ASTC specification)"); - } - for (int i = 0; i < blockWidth*blockHeight; i++) - for (int c = 0; c < 4; c++) - dstF[i*4 + c] = deFloat16To32((deFloat16)rgba[c]); -#endif - } - else - { - for (int i = 0; i < blockWidth*blockHeight; i++) - for (int c = 0; c < 4; c++) - dstF[i*4 + c] = rgba[c] == 65535 ? 1.0f : (float)rgba[c] / 65536.0f; - } - } - return DECOMPRESS_RESULT_VALID_BLOCK; -} -void decodeColorEndpointModes (deUint32* endpointModesDst, const Block128& blockData, int numPartitions, int extraCemBitsStart) -{ - if (numPartitions == 1) - endpointModesDst[0] = blockData.getBits(13, 16); - else - { - const deUint32 highLevelSelector = blockData.getBits(23, 24); - if (highLevelSelector == 0) - { - const deUint32 mode = blockData.getBits(25, 28); - for (int i = 0; i < numPartitions; i++) - endpointModesDst[i] = mode; - } - else - { - for (int partNdx = 0; partNdx < numPartitions; partNdx++) - { - const deUint32 cemClass = highLevelSelector - (blockData.isBitSet(25 + partNdx) ? 0 : 1); - const deUint32 lowBit0Ndx = numPartitions + 2*partNdx; - const deUint32 lowBit1Ndx = numPartitions + 2*partNdx + 1; - const deUint32 lowBit0 = blockData.getBit(lowBit0Ndx < 4 ? 25+lowBit0Ndx : extraCemBitsStart+lowBit0Ndx-4); - const deUint32 lowBit1 = blockData.getBit(lowBit1Ndx < 4 ? 25+lowBit1Ndx : extraCemBitsStart+lowBit1Ndx-4); - endpointModesDst[partNdx] = (cemClass << 2) | (lowBit1 << 1) | lowBit0; - } - } - } -} -int computeNumColorEndpointValues (const deUint32* endpointModes, int numPartitions) -{ - int result = 0; - for (int i = 0; i < numPartitions; i++) - result += computeNumColorEndpointValues(endpointModes[i]); - return result; -} -void decodeISETritBlock (ISEDecodedResult* dst, int numValues, BitAccessStream& data, int numBits) -{ - DE_ASSERT(basisu_astc::inRange(numValues, 1, 5)); - deUint32 m[5]; - m[0] = data.getNext(numBits); - deUint32 T01 = data.getNext(2); - m[1] = data.getNext(numBits); - deUint32 T23 = data.getNext(2); - m[2] = data.getNext(numBits); - deUint32 T4 = data.getNext(1); - m[3] = data.getNext(numBits); - deUint32 T56 = data.getNext(2); - m[4] = data.getNext(numBits); - deUint32 T7 = data.getNext(1); - switch (numValues) - { - // \note Fall-throughs. - case 1: T23 = 0; - case 2: T4 = 0; - case 3: T56 = 0; - case 4: T7 = 0; - case 5: break; - default: - DE_ASSERT(false); - } - const deUint32 T = (T7 << 7) | (T56 << 5) | (T4 << 4) | (T23 << 2) | (T01 << 0); - static const deUint32 tritsFromT[256][5] = - { - { 0,0,0,0,0 }, { 1,0,0,0,0 }, { 2,0,0,0,0 }, { 0,0,2,0,0 }, { 0,1,0,0,0 }, { 1,1,0,0,0 }, { 2,1,0,0,0 }, { 1,0,2,0,0 }, { 0,2,0,0,0 }, { 1,2,0,0,0 }, { 2,2,0,0,0 }, { 2,0,2,0,0 }, { 0,2,2,0,0 }, { 1,2,2,0,0 }, { 2,2,2,0,0 }, { 2,0,2,0,0 }, - { 0,0,1,0,0 }, { 1,0,1,0,0 }, { 2,0,1,0,0 }, { 0,1,2,0,0 }, { 0,1,1,0,0 }, { 1,1,1,0,0 }, { 2,1,1,0,0 }, { 1,1,2,0,0 }, { 0,2,1,0,0 }, { 1,2,1,0,0 }, { 2,2,1,0,0 }, { 2,1,2,0,0 }, { 0,0,0,2,2 }, { 1,0,0,2,2 }, { 2,0,0,2,2 }, { 0,0,2,2,2 }, - { 0,0,0,1,0 }, { 1,0,0,1,0 }, { 2,0,0,1,0 }, { 0,0,2,1,0 }, { 0,1,0,1,0 }, { 1,1,0,1,0 }, { 2,1,0,1,0 }, { 1,0,2,1,0 }, { 0,2,0,1,0 }, { 1,2,0,1,0 }, { 2,2,0,1,0 }, { 2,0,2,1,0 }, { 0,2,2,1,0 }, { 1,2,2,1,0 }, { 2,2,2,1,0 }, { 2,0,2,1,0 }, - { 0,0,1,1,0 }, { 1,0,1,1,0 }, { 2,0,1,1,0 }, { 0,1,2,1,0 }, { 0,1,1,1,0 }, { 1,1,1,1,0 }, { 2,1,1,1,0 }, { 1,1,2,1,0 }, { 0,2,1,1,0 }, { 1,2,1,1,0 }, { 2,2,1,1,0 }, { 2,1,2,1,0 }, { 0,1,0,2,2 }, { 1,1,0,2,2 }, { 2,1,0,2,2 }, { 1,0,2,2,2 }, - { 0,0,0,2,0 }, { 1,0,0,2,0 }, { 2,0,0,2,0 }, { 0,0,2,2,0 }, { 0,1,0,2,0 }, { 1,1,0,2,0 }, { 2,1,0,2,0 }, { 1,0,2,2,0 }, { 0,2,0,2,0 }, { 1,2,0,2,0 }, { 2,2,0,2,0 }, { 2,0,2,2,0 }, { 0,2,2,2,0 }, { 1,2,2,2,0 }, { 2,2,2,2,0 }, { 2,0,2,2,0 }, - { 0,0,1,2,0 }, { 1,0,1,2,0 }, { 2,0,1,2,0 }, { 0,1,2,2,0 }, { 0,1,1,2,0 }, { 1,1,1,2,0 }, { 2,1,1,2,0 }, { 1,1,2,2,0 }, { 0,2,1,2,0 }, { 1,2,1,2,0 }, { 2,2,1,2,0 }, { 2,1,2,2,0 }, { 0,2,0,2,2 }, { 1,2,0,2,2 }, { 2,2,0,2,2 }, { 2,0,2,2,2 }, - { 0,0,0,0,2 }, { 1,0,0,0,2 }, { 2,0,0,0,2 }, { 0,0,2,0,2 }, { 0,1,0,0,2 }, { 1,1,0,0,2 }, { 2,1,0,0,2 }, { 1,0,2,0,2 }, { 0,2,0,0,2 }, { 1,2,0,0,2 }, { 2,2,0,0,2 }, { 2,0,2,0,2 }, { 0,2,2,0,2 }, { 1,2,2,0,2 }, { 2,2,2,0,2 }, { 2,0,2,0,2 }, - { 0,0,1,0,2 }, { 1,0,1,0,2 }, { 2,0,1,0,2 }, { 0,1,2,0,2 }, { 0,1,1,0,2 }, { 1,1,1,0,2 }, { 2,1,1,0,2 }, { 1,1,2,0,2 }, { 0,2,1,0,2 }, { 1,2,1,0,2 }, { 2,2,1,0,2 }, { 2,1,2,0,2 }, { 0,2,2,2,2 }, { 1,2,2,2,2 }, { 2,2,2,2,2 }, { 2,0,2,2,2 }, - { 0,0,0,0,1 }, { 1,0,0,0,1 }, { 2,0,0,0,1 }, { 0,0,2,0,1 }, { 0,1,0,0,1 }, { 1,1,0,0,1 }, { 2,1,0,0,1 }, { 1,0,2,0,1 }, { 0,2,0,0,1 }, { 1,2,0,0,1 }, { 2,2,0,0,1 }, { 2,0,2,0,1 }, { 0,2,2,0,1 }, { 1,2,2,0,1 }, { 2,2,2,0,1 }, { 2,0,2,0,1 }, - { 0,0,1,0,1 }, { 1,0,1,0,1 }, { 2,0,1,0,1 }, { 0,1,2,0,1 }, { 0,1,1,0,1 }, { 1,1,1,0,1 }, { 2,1,1,0,1 }, { 1,1,2,0,1 }, { 0,2,1,0,1 }, { 1,2,1,0,1 }, { 2,2,1,0,1 }, { 2,1,2,0,1 }, { 0,0,1,2,2 }, { 1,0,1,2,2 }, { 2,0,1,2,2 }, { 0,1,2,2,2 }, - { 0,0,0,1,1 }, { 1,0,0,1,1 }, { 2,0,0,1,1 }, { 0,0,2,1,1 }, { 0,1,0,1,1 }, { 1,1,0,1,1 }, { 2,1,0,1,1 }, { 1,0,2,1,1 }, { 0,2,0,1,1 }, { 1,2,0,1,1 }, { 2,2,0,1,1 }, { 2,0,2,1,1 }, { 0,2,2,1,1 }, { 1,2,2,1,1 }, { 2,2,2,1,1 }, { 2,0,2,1,1 }, - { 0,0,1,1,1 }, { 1,0,1,1,1 }, { 2,0,1,1,1 }, { 0,1,2,1,1 }, { 0,1,1,1,1 }, { 1,1,1,1,1 }, { 2,1,1,1,1 }, { 1,1,2,1,1 }, { 0,2,1,1,1 }, { 1,2,1,1,1 }, { 2,2,1,1,1 }, { 2,1,2,1,1 }, { 0,1,1,2,2 }, { 1,1,1,2,2 }, { 2,1,1,2,2 }, { 1,1,2,2,2 }, - { 0,0,0,2,1 }, { 1,0,0,2,1 }, { 2,0,0,2,1 }, { 0,0,2,2,1 }, { 0,1,0,2,1 }, { 1,1,0,2,1 }, { 2,1,0,2,1 }, { 1,0,2,2,1 }, { 0,2,0,2,1 }, { 1,2,0,2,1 }, { 2,2,0,2,1 }, { 2,0,2,2,1 }, { 0,2,2,2,1 }, { 1,2,2,2,1 }, { 2,2,2,2,1 }, { 2,0,2,2,1 }, - { 0,0,1,2,1 }, { 1,0,1,2,1 }, { 2,0,1,2,1 }, { 0,1,2,2,1 }, { 0,1,1,2,1 }, { 1,1,1,2,1 }, { 2,1,1,2,1 }, { 1,1,2,2,1 }, { 0,2,1,2,1 }, { 1,2,1,2,1 }, { 2,2,1,2,1 }, { 2,1,2,2,1 }, { 0,2,1,2,2 }, { 1,2,1,2,2 }, { 2,2,1,2,2 }, { 2,1,2,2,2 }, - { 0,0,0,1,2 }, { 1,0,0,1,2 }, { 2,0,0,1,2 }, { 0,0,2,1,2 }, { 0,1,0,1,2 }, { 1,1,0,1,2 }, { 2,1,0,1,2 }, { 1,0,2,1,2 }, { 0,2,0,1,2 }, { 1,2,0,1,2 }, { 2,2,0,1,2 }, { 2,0,2,1,2 }, { 0,2,2,1,2 }, { 1,2,2,1,2 }, { 2,2,2,1,2 }, { 2,0,2,1,2 }, - { 0,0,1,1,2 }, { 1,0,1,1,2 }, { 2,0,1,1,2 }, { 0,1,2,1,2 }, { 0,1,1,1,2 }, { 1,1,1,1,2 }, { 2,1,1,1,2 }, { 1,1,2,1,2 }, { 0,2,1,1,2 }, { 1,2,1,1,2 }, { 2,2,1,1,2 }, { 2,1,2,1,2 }, { 0,2,2,2,2 }, { 1,2,2,2,2 }, { 2,2,2,2,2 }, { 2,1,2,2,2 } - }; - const deUint32 (& trits)[5] = tritsFromT[T]; - for (int i = 0; i < numValues; i++) - { - dst[i].m = m[i]; - dst[i].tq = trits[i]; - dst[i].v = (trits[i] << numBits) + m[i]; - } -} -void decodeISEQuintBlock (ISEDecodedResult* dst, int numValues, BitAccessStream& data, int numBits) -{ - DE_ASSERT(basisu_astc::inRange(numValues, 1, 3)); - deUint32 m[3]; - m[0] = data.getNext(numBits); - deUint32 Q012 = data.getNext(3); - m[1] = data.getNext(numBits); - deUint32 Q34 = data.getNext(2); - m[2] = data.getNext(numBits); - deUint32 Q56 = data.getNext(2); - switch (numValues) - { - // \note Fall-throughs. - case 1: Q34 = 0; - case 2: Q56 = 0; - case 3: break; - default: - DE_ASSERT(false); - } - const deUint32 Q = (Q56 << 5) | (Q34 << 3) | (Q012 << 0); - static const deUint32 quintsFromQ[256][3] = - { - { 0,0,0 }, { 1,0,0 }, { 2,0,0 }, { 3,0,0 }, { 4,0,0 }, { 0,4,0 }, { 4,4,0 }, { 4,4,4 }, { 0,1,0 }, { 1,1,0 }, { 2,1,0 }, { 3,1,0 }, { 4,1,0 }, { 1,4,0 }, { 4,4,1 }, { 4,4,4 }, - { 0,2,0 }, { 1,2,0 }, { 2,2,0 }, { 3,2,0 }, { 4,2,0 }, { 2,4,0 }, { 4,4,2 }, { 4,4,4 }, { 0,3,0 }, { 1,3,0 }, { 2,3,0 }, { 3,3,0 }, { 4,3,0 }, { 3,4,0 }, { 4,4,3 }, { 4,4,4 }, - { 0,0,1 }, { 1,0,1 }, { 2,0,1 }, { 3,0,1 }, { 4,0,1 }, { 0,4,1 }, { 4,0,4 }, { 0,4,4 }, { 0,1,1 }, { 1,1,1 }, { 2,1,1 }, { 3,1,1 }, { 4,1,1 }, { 1,4,1 }, { 4,1,4 }, { 1,4,4 }, - { 0,2,1 }, { 1,2,1 }, { 2,2,1 }, { 3,2,1 }, { 4,2,1 }, { 2,4,1 }, { 4,2,4 }, { 2,4,4 }, { 0,3,1 }, { 1,3,1 }, { 2,3,1 }, { 3,3,1 }, { 4,3,1 }, { 3,4,1 }, { 4,3,4 }, { 3,4,4 }, - { 0,0,2 }, { 1,0,2 }, { 2,0,2 }, { 3,0,2 }, { 4,0,2 }, { 0,4,2 }, { 2,0,4 }, { 3,0,4 }, { 0,1,2 }, { 1,1,2 }, { 2,1,2 }, { 3,1,2 }, { 4,1,2 }, { 1,4,2 }, { 2,1,4 }, { 3,1,4 }, - { 0,2,2 }, { 1,2,2 }, { 2,2,2 }, { 3,2,2 }, { 4,2,2 }, { 2,4,2 }, { 2,2,4 }, { 3,2,4 }, { 0,3,2 }, { 1,3,2 }, { 2,3,2 }, { 3,3,2 }, { 4,3,2 }, { 3,4,2 }, { 2,3,4 }, { 3,3,4 }, - { 0,0,3 }, { 1,0,3 }, { 2,0,3 }, { 3,0,3 }, { 4,0,3 }, { 0,4,3 }, { 0,0,4 }, { 1,0,4 }, { 0,1,3 }, { 1,1,3 }, { 2,1,3 }, { 3,1,3 }, { 4,1,3 }, { 1,4,3 }, { 0,1,4 }, { 1,1,4 }, - { 0,2,3 }, { 1,2,3 }, { 2,2,3 }, { 3,2,3 }, { 4,2,3 }, { 2,4,3 }, { 0,2,4 }, { 1,2,4 }, { 0,3,3 }, { 1,3,3 }, { 2,3,3 }, { 3,3,3 }, { 4,3,3 }, { 3,4,3 }, { 0,3,4 }, { 1,3,4 } - }; - const deUint32 (& quints)[3] = quintsFromQ[Q]; - for (int i = 0; i < numValues; i++) - { - dst[i].m = m[i]; - dst[i].tq = quints[i]; - dst[i].v = (quints[i] << numBits) + m[i]; - } -} -inline void decodeISEBitBlock (ISEDecodedResult* dst, BitAccessStream& data, int numBits) -{ - dst[0].m = data.getNext(numBits); - dst[0].v = dst[0].m; -} -void decodeISE (ISEDecodedResult* dst, int numValues, BitAccessStream& data, const ISEParams& params) -{ - if (params.mode == ISEMODE_TRIT) - { - const int numBlocks = deDivRoundUp32(numValues, 5); - for (int blockNdx = 0; blockNdx < numBlocks; blockNdx++) - { - const int numValuesInBlock = blockNdx == numBlocks-1 ? numValues - 5*(numBlocks-1) : 5; - decodeISETritBlock(&dst[5*blockNdx], numValuesInBlock, data, params.numBits); - } - } - else if (params.mode == ISEMODE_QUINT) - { - const int numBlocks = deDivRoundUp32(numValues, 3); - for (int blockNdx = 0; blockNdx < numBlocks; blockNdx++) - { - const int numValuesInBlock = blockNdx == numBlocks-1 ? numValues - 3*(numBlocks-1) : 3; - decodeISEQuintBlock(&dst[3*blockNdx], numValuesInBlock, data, params.numBits); - } - } - else - { - DE_ASSERT(params.mode == ISEMODE_PLAIN_BIT); - for (int i = 0; i < numValues; i++) - decodeISEBitBlock(&dst[i], data, params.numBits); - } -} -void unquantizeColorEndpoints (deUint32* dst, const ISEDecodedResult* iseResults, int numEndpoints, const ISEParams& iseParams) -{ - if (iseParams.mode == ISEMODE_TRIT || iseParams.mode == ISEMODE_QUINT) - { - const int rangeCase = iseParams.numBits*2 - (iseParams.mode == ISEMODE_TRIT ? 2 : 1); - DE_ASSERT(basisu_astc::inRange(rangeCase, 0, 10)); - static const deUint32 Ca[11] = { 204, 113, 93, 54, 44, 26, 22, 13, 11, 6, 5 }; - const deUint32 C = Ca[rangeCase]; - for (int endpointNdx = 0; endpointNdx < numEndpoints; endpointNdx++) - { - const deUint32 a = getBit(iseResults[endpointNdx].m, 0); - const deUint32 b = getBit(iseResults[endpointNdx].m, 1); - const deUint32 c = getBit(iseResults[endpointNdx].m, 2); - const deUint32 d = getBit(iseResults[endpointNdx].m, 3); - const deUint32 e = getBit(iseResults[endpointNdx].m, 4); - const deUint32 f = getBit(iseResults[endpointNdx].m, 5); - const deUint32 A = a == 0 ? 0 : (1<<9)-1; - const deUint32 B = rangeCase == 0 ? 0 - : rangeCase == 1 ? 0 - : rangeCase == 2 ? (b << 8) | (b << 4) | (b << 2) | (b << 1) - : rangeCase == 3 ? (b << 8) | (b << 3) | (b << 2) - : rangeCase == 4 ? (c << 8) | (b << 7) | (c << 3) | (b << 2) | (c << 1) | (b << 0) - : rangeCase == 5 ? (c << 8) | (b << 7) | (c << 2) | (b << 1) | (c << 0) - : rangeCase == 6 ? (d << 8) | (c << 7) | (b << 6) | (d << 2) | (c << 1) | (b << 0) - : rangeCase == 7 ? (d << 8) | (c << 7) | (b << 6) | (d << 1) | (c << 0) - : rangeCase == 8 ? (e << 8) | (d << 7) | (c << 6) | (b << 5) | (e << 1) | (d << 0) - : rangeCase == 9 ? (e << 8) | (d << 7) | (c << 6) | (b << 5) | (e << 0) - : rangeCase == 10 ? (f << 8) | (e << 7) | (d << 6) | (c << 5) | (b << 4) | (f << 0) - : (deUint32)-1; - DE_ASSERT(B != (deUint32)-1); - dst[endpointNdx] = (((iseResults[endpointNdx].tq*C + B) ^ A) >> 2) | (A & 0x80); - } - } - else - { - DE_ASSERT(iseParams.mode == ISEMODE_PLAIN_BIT); - for (int endpointNdx = 0; endpointNdx < numEndpoints; endpointNdx++) - dst[endpointNdx] = bitReplicationScale(iseResults[endpointNdx].v, iseParams.numBits, 8); - } -} -inline void bitTransferSigned (deInt32& a, deInt32& b) -{ - b >>= 1; - b |= a & 0x80; - a >>= 1; - a &= 0x3f; - if (isBitSet(a, 5)) - a -= 0x40; -} -inline UVec4 clampedRGBA (const IVec4& rgba) -{ - return UVec4(basisu_astc::clamp(rgba.x(), 0, 0xff), - basisu_astc::clamp(rgba.y(), 0, 0xff), - basisu_astc::clamp(rgba.z(), 0, 0xff), - basisu_astc::clamp(rgba.w(), 0, 0xff)); -} -inline IVec4 blueContract (int r, int g, int b, int a) -{ - return IVec4((r+b)>>1, (g+b)>>1, b, a); -} -inline bool isColorEndpointModeHDR (deUint32 mode) -{ - return mode == 2 || - mode == 3 || - mode == 7 || - mode == 11 || - mode == 14 || - mode == 15; -} -void decodeHDREndpointMode7 (UVec4& e0, UVec4& e1, deUint32 v0, deUint32 v1, deUint32 v2, deUint32 v3) -{ - const deUint32 m10 = getBit(v1, 7) | (getBit(v2, 7) << 1); - const deUint32 m23 = getBits(v0, 6, 7); - const deUint32 majComp = m10 != 3 ? m10 - : m23 != 3 ? m23 - : 0; - const deUint32 mode = m10 != 3 ? m23 - : m23 != 3 ? 4 - : 5; - deInt32 red = (deInt32)getBits(v0, 0, 5); - deInt32 green = (deInt32)getBits(v1, 0, 4); - deInt32 blue = (deInt32)getBits(v2, 0, 4); - deInt32 scale = (deInt32)getBits(v3, 0, 4); - { -#define SHOR(DST_VAR, SHIFT, BIT_VAR) (DST_VAR) |= (BIT_VAR) << (SHIFT) -#define ASSIGN_X_BITS(V0,S0, V1,S1, V2,S2, V3,S3, V4,S4, V5,S5, V6,S6) do { SHOR(V0,S0,x0); SHOR(V1,S1,x1); SHOR(V2,S2,x2); SHOR(V3,S3,x3); SHOR(V4,S4,x4); SHOR(V5,S5,x5); SHOR(V6,S6,x6); } while (false) - const deUint32 x0 = getBit(v1, 6); - const deUint32 x1 = getBit(v1, 5); - const deUint32 x2 = getBit(v2, 6); - const deUint32 x3 = getBit(v2, 5); - const deUint32 x4 = getBit(v3, 7); - const deUint32 x5 = getBit(v3, 6); - const deUint32 x6 = getBit(v3, 5); - deInt32& R = red; - deInt32& G = green; - deInt32& B = blue; - deInt32& S = scale; - switch (mode) - { - case 0: ASSIGN_X_BITS(R,9, R,8, R,7, R,10, R,6, S,6, S,5); break; - case 1: ASSIGN_X_BITS(R,8, G,5, R,7, B,5, R,6, R,10, R,9); break; - case 2: ASSIGN_X_BITS(R,9, R,8, R,7, R,6, S,7, S,6, S,5); break; - case 3: ASSIGN_X_BITS(R,8, G,5, R,7, B,5, R,6, S,6, S,5); break; - case 4: ASSIGN_X_BITS(G,6, G,5, B,6, B,5, R,6, R,7, S,5); break; - case 5: ASSIGN_X_BITS(G,6, G,5, B,6, B,5, R,6, S,6, S,5); break; - default: - DE_ASSERT(false); - } -#undef ASSIGN_X_BITS -#undef SHOR - } - static const int shiftAmounts[] = { 1, 1, 2, 3, 4, 5 }; - DE_ASSERT(mode < DE_LENGTH_OF_ARRAY(shiftAmounts)); - red <<= shiftAmounts[mode]; - green <<= shiftAmounts[mode]; - blue <<= shiftAmounts[mode]; - scale <<= shiftAmounts[mode]; - if (mode != 5) - { - green = red - green; - blue = red - blue; - } - if (majComp == 1) - std::swap(red, green); - else if (majComp == 2) - std::swap(red, blue); - e0 = UVec4(basisu_astc::clamp(red - scale, 0, 0xfff), - basisu_astc::clamp(green - scale, 0, 0xfff), - basisu_astc::clamp(blue - scale, 0, 0xfff), - 0x780); - e1 = UVec4(basisu_astc::clamp(red, 0, 0xfff), - basisu_astc::clamp(green, 0, 0xfff), - basisu_astc::clamp(blue, 0, 0xfff), - 0x780); -} -void decodeHDREndpointMode11 (UVec4& e0, UVec4& e1, deUint32 v0, deUint32 v1, deUint32 v2, deUint32 v3, deUint32 v4, deUint32 v5) -{ - const deUint32 major = (getBit(v5, 7) << 1) | getBit(v4, 7); - if (major == 3) - { - e0 = UVec4(v0<<4, v2<<4, getBits(v4,0,6)<<5, 0x780); - e1 = UVec4(v1<<4, v3<<4, getBits(v5,0,6)<<5, 0x780); - } - else - { - const deUint32 mode = (getBit(v3, 7) << 2) | (getBit(v2, 7) << 1) | getBit(v1, 7); - deInt32 a = (deInt32)((getBit(v1, 6) << 8) | v0); - deInt32 c = (deInt32)(getBits(v1, 0, 5)); - deInt32 b0 = (deInt32)(getBits(v2, 0, 5)); - deInt32 b1 = (deInt32)(getBits(v3, 0, 5)); - deInt32 d0 = (deInt32)(getBits(v4, 0, 4)); - deInt32 d1 = (deInt32)(getBits(v5, 0, 4)); - { -#define SHOR(DST_VAR, SHIFT, BIT_VAR) (DST_VAR) |= (BIT_VAR) << (SHIFT) -#define ASSIGN_X_BITS(V0,S0, V1,S1, V2,S2, V3,S3, V4,S4, V5,S5) do { SHOR(V0,S0,x0); SHOR(V1,S1,x1); SHOR(V2,S2,x2); SHOR(V3,S3,x3); SHOR(V4,S4,x4); SHOR(V5,S5,x5); } while (false) - const deUint32 x0 = getBit(v2, 6); - const deUint32 x1 = getBit(v3, 6); - const deUint32 x2 = getBit(v4, 6); - const deUint32 x3 = getBit(v5, 6); - const deUint32 x4 = getBit(v4, 5); - const deUint32 x5 = getBit(v5, 5); - switch (mode) - { - case 0: ASSIGN_X_BITS(b0,6, b1,6, d0,6, d1,6, d0,5, d1,5); break; - case 1: ASSIGN_X_BITS(b0,6, b1,6, b0,7, b1,7, d0,5, d1,5); break; - case 2: ASSIGN_X_BITS(a,9, c,6, d0,6, d1,6, d0,5, d1,5); break; - case 3: ASSIGN_X_BITS(b0,6, b1,6, a,9, c,6, d0,5, d1,5); break; - case 4: ASSIGN_X_BITS(b0,6, b1,6, b0,7, b1,7, a,9, a,10); break; - case 5: ASSIGN_X_BITS(a,9, a,10, c,7, c,6, d0,5, d1,5); break; - case 6: ASSIGN_X_BITS(b0,6, b1,6, a,11, c,6, a,9, a,10); break; - case 7: ASSIGN_X_BITS(a,9, a,10, a,11, c,6, d0,5, d1,5); break; - default: - DE_ASSERT(false); - } -#undef ASSIGN_X_BITS -#undef SHOR - } - static const int numDBits[] = { 7, 6, 7, 6, 5, 6, 5, 6 }; - DE_ASSERT(mode < DE_LENGTH_OF_ARRAY(numDBits)); - d0 = signExtend(d0, numDBits[mode]); - d1 = signExtend(d1, numDBits[mode]); - const int shiftAmount = (mode >> 1) ^ 3; - a <<= shiftAmount; - c <<= shiftAmount; - b0 <<= shiftAmount; - b1 <<= shiftAmount; - d0 <<= shiftAmount; - d1 <<= shiftAmount; - e0 = UVec4(basisu_astc::clamp(a-c, 0, 0xfff), - basisu_astc::clamp(a-b0-c-d0, 0, 0xfff), - basisu_astc::clamp(a-b1-c-d1, 0, 0xfff), - 0x780); - e1 = UVec4(basisu_astc::clamp(a, 0, 0xfff), - basisu_astc::clamp(a-b0, 0, 0xfff), - basisu_astc::clamp(a-b1, 0, 0xfff), - 0x780); - if (major == 1) - { - std::swap(e0.x(), e0.y()); - std::swap(e1.x(), e1.y()); - } - else if (major == 2) - { - std::swap(e0.x(), e0.z()); - std::swap(e1.x(), e1.z()); - } - } -} -void decodeHDREndpointMode15(UVec4& e0, UVec4& e1, deUint32 v0, deUint32 v1, deUint32 v2, deUint32 v3, deUint32 v4, deUint32 v5, deUint32 v6In, deUint32 v7In) -{ - decodeHDREndpointMode11(e0, e1, v0, v1, v2, v3, v4, v5); - const deUint32 mode = (getBit(v7In, 7) << 1) | getBit(v6In, 7); - deInt32 v6 = (deInt32)getBits(v6In, 0, 6); - deInt32 v7 = (deInt32)getBits(v7In, 0, 6); - if (mode == 3) - { - e0.w() = v6 << 5; - e1.w() = v7 << 5; - } - else - { - v6 |= (v7 << (mode+1)) & 0x780; - v7 &= (0x3f >> mode); - v7 ^= 0x20 >> mode; - v7 -= 0x20 >> mode; - v6 <<= 4-mode; - v7 <<= 4-mode; - v7 += v6; - v7 = basisu_astc::clamp(v7, 0, 0xfff); - e0.w() = v6; - e1.w() = v7; - } -} -void decodeColorEndpoints (ColorEndpointPair* dst, const deUint32* unquantizedEndpoints, const deUint32* endpointModes, int numPartitions) -{ - int unquantizedNdx = 0; - for (int partitionNdx = 0; partitionNdx < numPartitions; partitionNdx++) - { - const deUint32 endpointMode = endpointModes[partitionNdx]; - const deUint32* v = &unquantizedEndpoints[unquantizedNdx]; - UVec4& e0 = dst[partitionNdx].e0; - UVec4& e1 = dst[partitionNdx].e1; - unquantizedNdx += computeNumColorEndpointValues(endpointMode); - switch (endpointMode) - { - case 0: - e0 = UVec4(v[0], v[0], v[0], 0xff); - e1 = UVec4(v[1], v[1], v[1], 0xff); - break; - case 1: - { - const deUint32 L0 = (v[0] >> 2) | (getBits(v[1], 6, 7) << 6); - const deUint32 L1 = basisu_astc::min(0xffu, L0 + getBits(v[1], 0, 5)); - e0 = UVec4(L0, L0, L0, 0xff); - e1 = UVec4(L1, L1, L1, 0xff); - break; - } - case 2: - { - const deUint32 v1Gr = v[1] >= v[0]; - const deUint32 y0 = v1Gr ? v[0]<<4 : (v[1]<<4) + 8; - const deUint32 y1 = v1Gr ? v[1]<<4 : (v[0]<<4) - 8; - e0 = UVec4(y0, y0, y0, 0x780); - e1 = UVec4(y1, y1, y1, 0x780); - break; - } - case 3: - { - const bool m = isBitSet(v[0], 7); - const deUint32 y0 = m ? (getBits(v[1], 5, 7) << 9) | (getBits(v[0], 0, 6) << 2) - : (getBits(v[1], 4, 7) << 8) | (getBits(v[0], 0, 6) << 1); - const deUint32 d = m ? getBits(v[1], 0, 4) << 2 - : getBits(v[1], 0, 3) << 1; - const deUint32 y1 = basisu_astc::min(0xfffu, y0+d); - e0 = UVec4(y0, y0, y0, 0x780); - e1 = UVec4(y1, y1, y1, 0x780); - break; - } - case 4: - e0 = UVec4(v[0], v[0], v[0], v[2]); - e1 = UVec4(v[1], v[1], v[1], v[3]); - break; - case 5: - { - deInt32 v0 = (deInt32)v[0]; - deInt32 v1 = (deInt32)v[1]; - deInt32 v2 = (deInt32)v[2]; - deInt32 v3 = (deInt32)v[3]; - bitTransferSigned(v1, v0); - bitTransferSigned(v3, v2); - e0 = clampedRGBA(IVec4(v0, v0, v0, v2)); - e1 = clampedRGBA(IVec4(v0+v1, v0+v1, v0+v1, v2+v3)); - break; - } - case 6: - e0 = UVec4((v[0]*v[3]) >> 8, (v[1]*v[3]) >> 8, (v[2]*v[3]) >> 8, 0xff); - e1 = UVec4(v[0], v[1], v[2], 0xff); - break; - case 7: - decodeHDREndpointMode7(e0, e1, v[0], v[1], v[2], v[3]); - break; - case 8: - if (v[1]+v[3]+v[5] >= v[0]+v[2]+v[4]) - { - e0 = UVec4(v[0], v[2], v[4], 0xff); - e1 = UVec4(v[1], v[3], v[5], 0xff); - } - else - { - e0 = blueContract(v[1], v[3], v[5], 0xff).asUint(); - e1 = blueContract(v[0], v[2], v[4], 0xff).asUint(); - } - break; - case 9: - { - deInt32 v0 = (deInt32)v[0]; - deInt32 v1 = (deInt32)v[1]; - deInt32 v2 = (deInt32)v[2]; - deInt32 v3 = (deInt32)v[3]; - deInt32 v4 = (deInt32)v[4]; - deInt32 v5 = (deInt32)v[5]; - bitTransferSigned(v1, v0); - bitTransferSigned(v3, v2); - bitTransferSigned(v5, v4); - if (v1+v3+v5 >= 0) - { - e0 = clampedRGBA(IVec4(v0, v2, v4, 0xff)); - e1 = clampedRGBA(IVec4(v0+v1, v2+v3, v4+v5, 0xff)); - } - else - { - e0 = clampedRGBA(blueContract(v0+v1, v2+v3, v4+v5, 0xff)); - e1 = clampedRGBA(blueContract(v0, v2, v4, 0xff)); - } - break; - } - case 10: - e0 = UVec4((v[0]*v[3]) >> 8, (v[1]*v[3]) >> 8, (v[2]*v[3]) >> 8, v[4]); - e1 = UVec4(v[0], v[1], v[2], v[5]); - break; - case 11: - decodeHDREndpointMode11(e0, e1, v[0], v[1], v[2], v[3], v[4], v[5]); - break; - case 12: - if (v[1]+v[3]+v[5] >= v[0]+v[2]+v[4]) - { - e0 = UVec4(v[0], v[2], v[4], v[6]); - e1 = UVec4(v[1], v[3], v[5], v[7]); - } - else - { - e0 = clampedRGBA(blueContract(v[1], v[3], v[5], v[7])); - e1 = clampedRGBA(blueContract(v[0], v[2], v[4], v[6])); - } - break; - case 13: - { - deInt32 v0 = (deInt32)v[0]; - deInt32 v1 = (deInt32)v[1]; - deInt32 v2 = (deInt32)v[2]; - deInt32 v3 = (deInt32)v[3]; - deInt32 v4 = (deInt32)v[4]; - deInt32 v5 = (deInt32)v[5]; - deInt32 v6 = (deInt32)v[6]; - deInt32 v7 = (deInt32)v[7]; - bitTransferSigned(v1, v0); - bitTransferSigned(v3, v2); - bitTransferSigned(v5, v4); - bitTransferSigned(v7, v6); - if (v1+v3+v5 >= 0) - { - e0 = clampedRGBA(IVec4(v0, v2, v4, v6)); - e1 = clampedRGBA(IVec4(v0+v1, v2+v3, v4+v5, v6+v7)); - } - else - { - e0 = clampedRGBA(blueContract(v0+v1, v2+v3, v4+v5, v6+v7)); - e1 = clampedRGBA(blueContract(v0, v2, v4, v6)); - } - break; - } - case 14: - decodeHDREndpointMode11(e0, e1, v[0], v[1], v[2], v[3], v[4], v[5]); - e0.w() = v[6]; - e1.w() = v[7]; - break; - case 15: - decodeHDREndpointMode15(e0, e1, v[0], v[1], v[2], v[3], v[4], v[5], v[6], v[7]); - break; - default: - DE_ASSERT(false); - } - } -} -void computeColorEndpoints (ColorEndpointPair* dst, const Block128& blockData, const deUint32* endpointModes, int numPartitions, int numColorEndpointValues, const ISEParams& iseParams, int numBitsAvailable) -{ - const int colorEndpointDataStart = numPartitions == 1 ? 17 : 29; - ISEDecodedResult colorEndpointData[18]; - { - BitAccessStream dataStream(blockData, colorEndpointDataStart, numBitsAvailable, true); - decodeISE(&colorEndpointData[0], numColorEndpointValues, dataStream, iseParams); - } - { - deUint32 unquantizedEndpoints[18]; - unquantizeColorEndpoints(&unquantizedEndpoints[0], &colorEndpointData[0], numColorEndpointValues, iseParams); - decodeColorEndpoints(dst, &unquantizedEndpoints[0], &endpointModes[0], numPartitions); - } -} -void unquantizeWeights (deUint32 dst[64], const ISEDecodedResult* weightGrid, const ASTCBlockMode& blockMode) -{ - const int numWeights = computeNumWeights(blockMode); - const ISEParams& iseParams = blockMode.weightISEParams; - if (iseParams.mode == ISEMODE_TRIT || iseParams.mode == ISEMODE_QUINT) - { - const int rangeCase = iseParams.numBits*2 + (iseParams.mode == ISEMODE_QUINT ? 1 : 0); - if (rangeCase == 0 || rangeCase == 1) - { - static const deUint32 map0[3] = { 0, 32, 63 }; - static const deUint32 map1[5] = { 0, 16, 32, 47, 63 }; - const deUint32* const map = rangeCase == 0 ? &map0[0] : &map1[0]; - for (int i = 0; i < numWeights; i++) - { - DE_ASSERT(weightGrid[i].v < (rangeCase == 0 ? 3u : 5u)); - dst[i] = map[weightGrid[i].v]; - } - } - else - { - DE_ASSERT(rangeCase <= 6); - static const deUint32 Ca[5] = { 50, 28, 23, 13, 11 }; - const deUint32 C = Ca[rangeCase-2]; - for (int weightNdx = 0; weightNdx < numWeights; weightNdx++) - { - const deUint32 a = getBit(weightGrid[weightNdx].m, 0); - const deUint32 b = getBit(weightGrid[weightNdx].m, 1); - const deUint32 c = getBit(weightGrid[weightNdx].m, 2); - const deUint32 A = a == 0 ? 0 : (1<<7)-1; - const deUint32 B = rangeCase == 2 ? 0 - : rangeCase == 3 ? 0 - : rangeCase == 4 ? (b << 6) | (b << 2) | (b << 0) - : rangeCase == 5 ? (b << 6) | (b << 1) - : rangeCase == 6 ? (c << 6) | (b << 5) | (c << 1) | (b << 0) - : (deUint32)-1; - dst[weightNdx] = (((weightGrid[weightNdx].tq*C + B) ^ A) >> 2) | (A & 0x20); - } - } - } - else - { - DE_ASSERT(iseParams.mode == ISEMODE_PLAIN_BIT); - for (int weightNdx = 0; weightNdx < numWeights; weightNdx++) - dst[weightNdx] = bitReplicationScale(weightGrid[weightNdx].v, iseParams.numBits, 6); - } - for (int weightNdx = 0; weightNdx < numWeights; weightNdx++) - dst[weightNdx] += dst[weightNdx] > 32 ? 1 : 0; - // Initialize nonexistent weights to poison values - for (int weightNdx = numWeights; weightNdx < 64; weightNdx++) - dst[weightNdx] = ~0u; -} -void interpolateWeights (TexelWeightPair* dst, const deUint32 (&unquantizedWeights) [64], int blockWidth, int blockHeight, const ASTCBlockMode& blockMode) -{ - const int numWeightsPerTexel = blockMode.isDualPlane ? 2 : 1; - const deUint32 scaleX = (1024 + blockWidth/2) / (blockWidth-1); - const deUint32 scaleY = (1024 + blockHeight/2) / (blockHeight-1); - DE_ASSERT(blockMode.weightGridWidth*blockMode.weightGridHeight*numWeightsPerTexel <= (int)DE_LENGTH_OF_ARRAY(unquantizedWeights)); - for (int texelY = 0; texelY < blockHeight; texelY++) - { - for (int texelX = 0; texelX < blockWidth; texelX++) - { - const deUint32 gX = (scaleX*texelX*(blockMode.weightGridWidth-1) + 32) >> 6; - const deUint32 gY = (scaleY*texelY*(blockMode.weightGridHeight-1) + 32) >> 6; - const deUint32 jX = gX >> 4; - const deUint32 jY = gY >> 4; - const deUint32 fX = gX & 0xf; - const deUint32 fY = gY & 0xf; - const deUint32 w11 = (fX*fY + 8) >> 4; - const deUint32 w10 = fY - w11; - const deUint32 w01 = fX - w11; - const deUint32 w00 = 16 - fX - fY + w11; - const deUint32 i00 = jY*blockMode.weightGridWidth + jX; - const deUint32 i01 = i00 + 1; - const deUint32 i10 = i00 + blockMode.weightGridWidth; - const deUint32 i11 = i00 + blockMode.weightGridWidth + 1; - // These addresses can be out of bounds, but respective weights will be 0 then. - DE_ASSERT(deInBounds32(i00, 0, blockMode.weightGridWidth*blockMode.weightGridHeight) || w00 == 0); - DE_ASSERT(deInBounds32(i01, 0, blockMode.weightGridWidth*blockMode.weightGridHeight) || w01 == 0); - DE_ASSERT(deInBounds32(i10, 0, blockMode.weightGridWidth*blockMode.weightGridHeight) || w10 == 0); - DE_ASSERT(deInBounds32(i11, 0, blockMode.weightGridWidth*blockMode.weightGridHeight) || w11 == 0); - for (int texelWeightNdx = 0; texelWeightNdx < numWeightsPerTexel; texelWeightNdx++) - { - // & 0x3f clamps address to bounds of unquantizedWeights - const deUint32 p00 = unquantizedWeights[(i00 * numWeightsPerTexel + texelWeightNdx) & 0x3f]; - const deUint32 p01 = unquantizedWeights[(i01 * numWeightsPerTexel + texelWeightNdx) & 0x3f]; - const deUint32 p10 = unquantizedWeights[(i10 * numWeightsPerTexel + texelWeightNdx) & 0x3f]; - const deUint32 p11 = unquantizedWeights[(i11 * numWeightsPerTexel + texelWeightNdx) & 0x3f]; - dst[texelY*blockWidth + texelX].w[texelWeightNdx] = (p00*w00 + p01*w01 + p10*w10 + p11*w11 + 8) >> 4; - } - } - } -} -void computeTexelWeights (TexelWeightPair* dst, const Block128& blockData, int blockWidth, int blockHeight, const ASTCBlockMode& blockMode) -{ - ISEDecodedResult weightGrid[64]; - { - BitAccessStream dataStream(blockData, 127, computeNumRequiredBits(blockMode.weightISEParams, computeNumWeights(blockMode)), false); - decodeISE(&weightGrid[0], computeNumWeights(blockMode), dataStream, blockMode.weightISEParams); - } - { - deUint32 unquantizedWeights[64]; - unquantizeWeights(&unquantizedWeights[0], &weightGrid[0], blockMode); - interpolateWeights(dst, unquantizedWeights, blockWidth, blockHeight, blockMode); - } -} -inline deUint32 hash52 (deUint32 v) -{ - deUint32 p = v; - p ^= p >> 15; p -= p << 17; p += p << 7; p += p << 4; - p ^= p >> 5; p += p << 16; p ^= p >> 7; p ^= p >> 3; - p ^= p << 6; p ^= p >> 17; - return p; -} -int computeTexelPartition (deUint32 seedIn, deUint32 xIn, deUint32 yIn, deUint32 zIn, int numPartitions, bool smallBlock) -{ - DE_ASSERT(zIn == 0); - const deUint32 x = smallBlock ? xIn << 1 : xIn; - const deUint32 y = smallBlock ? yIn << 1 : yIn; - const deUint32 z = smallBlock ? zIn << 1 : zIn; - const deUint32 seed = seedIn + 1024*(numPartitions-1); - const deUint32 rnum = hash52(seed); - deUint8 seed1 = (deUint8)( rnum & 0xf); - deUint8 seed2 = (deUint8)((rnum >> 4) & 0xf); - deUint8 seed3 = (deUint8)((rnum >> 8) & 0xf); - deUint8 seed4 = (deUint8)((rnum >> 12) & 0xf); - deUint8 seed5 = (deUint8)((rnum >> 16) & 0xf); - deUint8 seed6 = (deUint8)((rnum >> 20) & 0xf); - deUint8 seed7 = (deUint8)((rnum >> 24) & 0xf); - deUint8 seed8 = (deUint8)((rnum >> 28) & 0xf); - deUint8 seed9 = (deUint8)((rnum >> 18) & 0xf); - deUint8 seed10 = (deUint8)((rnum >> 22) & 0xf); - deUint8 seed11 = (deUint8)((rnum >> 26) & 0xf); - deUint8 seed12 = (deUint8)(((rnum >> 30) | (rnum << 2)) & 0xf); - seed1 = (deUint8)(seed1 * seed1 ); - seed2 = (deUint8)(seed2 * seed2 ); - seed3 = (deUint8)(seed3 * seed3 ); - seed4 = (deUint8)(seed4 * seed4 ); - seed5 = (deUint8)(seed5 * seed5 ); - seed6 = (deUint8)(seed6 * seed6 ); - seed7 = (deUint8)(seed7 * seed7 ); - seed8 = (deUint8)(seed8 * seed8 ); - seed9 = (deUint8)(seed9 * seed9 ); - seed10 = (deUint8)(seed10 * seed10); - seed11 = (deUint8)(seed11 * seed11); - seed12 = (deUint8)(seed12 * seed12); - const int shA = (seed & 2) != 0 ? 4 : 5; - const int shB = numPartitions == 3 ? 6 : 5; - const int sh1 = (seed & 1) != 0 ? shA : shB; - const int sh2 = (seed & 1) != 0 ? shB : shA; - const int sh3 = (seed & 0x10) != 0 ? sh1 : sh2; - seed1 = (deUint8)(seed1 >> sh1); - seed2 = (deUint8)(seed2 >> sh2); - seed3 = (deUint8)(seed3 >> sh1); - seed4 = (deUint8)(seed4 >> sh2); - seed5 = (deUint8)(seed5 >> sh1); - seed6 = (deUint8)(seed6 >> sh2); - seed7 = (deUint8)(seed7 >> sh1); - seed8 = (deUint8)(seed8 >> sh2); - seed9 = (deUint8)(seed9 >> sh3); - seed10 = (deUint8)(seed10 >> sh3); - seed11 = (deUint8)(seed11 >> sh3); - seed12 = (deUint8)(seed12 >> sh3); - const int a = 0x3f & (seed1*x + seed2*y + seed11*z + (rnum >> 14)); - const int b = 0x3f & (seed3*x + seed4*y + seed12*z + (rnum >> 10)); - const int c = numPartitions >= 3 ? 0x3f & (seed5*x + seed6*y + seed9*z + (rnum >> 6)) : 0; - const int d = numPartitions >= 4 ? 0x3f & (seed7*x + seed8*y + seed10*z + (rnum >> 2)) : 0; - return a >= b && a >= c && a >= d ? 0 - : b >= c && b >= d ? 1 - : c >= d ? 2 - : 3; -} -DecompressResult setTexelColors (void* dst, ColorEndpointPair* colorEndpoints, TexelWeightPair* texelWeights, int ccs, deUint32 partitionIndexSeed, - int numPartitions, int blockWidth, int blockHeight, bool isSRGB, bool isLDRMode, const deUint32* colorEndpointModes) -{ - const bool smallBlock = blockWidth*blockHeight < 31; - DecompressResult result = DECOMPRESS_RESULT_VALID_BLOCK; - bool isHDREndpoint[4]; - for (int i = 0; i < numPartitions; i++) - { - isHDREndpoint[i] = isColorEndpointModeHDR(colorEndpointModes[i]); - - // rg - REMOVING HDR SUPPORT FOR NOW - if (isHDREndpoint[i]) - return DECOMPRESS_RESULT_ERROR; - } - - for (int texelY = 0; texelY < blockHeight; texelY++) - for (int texelX = 0; texelX < blockWidth; texelX++) - { - const int texelNdx = texelY*blockWidth + texelX; - const int colorEndpointNdx = numPartitions == 1 ? 0 : computeTexelPartition(partitionIndexSeed, texelX, texelY, 0, numPartitions, smallBlock); - DE_ASSERT(colorEndpointNdx < numPartitions); - const UVec4& e0 = colorEndpoints[colorEndpointNdx].e0; - const UVec4& e1 = colorEndpoints[colorEndpointNdx].e1; - const TexelWeightPair& weight = texelWeights[texelNdx]; - if (isLDRMode && isHDREndpoint[colorEndpointNdx]) - { - if (isSRGB) - { - ((deUint8*)dst)[texelNdx*4 + 0] = 0xff; - ((deUint8*)dst)[texelNdx*4 + 1] = 0; - ((deUint8*)dst)[texelNdx*4 + 2] = 0xff; - ((deUint8*)dst)[texelNdx*4 + 3] = 0xff; - } - else - { - ((float*)dst)[texelNdx*4 + 0] = 1.0f; - ((float*)dst)[texelNdx*4 + 1] = 0; - ((float*)dst)[texelNdx*4 + 2] = 1.0f; - ((float*)dst)[texelNdx*4 + 3] = 1.0f; - } - result = DECOMPRESS_RESULT_ERROR; - } - else - { - for (int channelNdx = 0; channelNdx < 4; channelNdx++) - { - if (!isHDREndpoint[colorEndpointNdx] || (channelNdx == 3 && colorEndpointModes[colorEndpointNdx] == 14)) // \note Alpha for mode 14 is treated the same as LDR. - { - const deUint32 c0 = (e0[channelNdx] << 8) | (isSRGB ? 0x80 : e0[channelNdx]); - const deUint32 c1 = (e1[channelNdx] << 8) | (isSRGB ? 0x80 : e1[channelNdx]); - const deUint32 w = weight.w[ccs == channelNdx ? 1 : 0]; - const deUint32 c = (c0*(64-w) + c1*w + 32) / 64; - if (isSRGB) - ((deUint8*)dst)[texelNdx*4 + channelNdx] = (deUint8)((c & 0xff00) >> 8); - else - ((float*)dst)[texelNdx*4 + channelNdx] = c == 65535 ? 1.0f : (float)c / 65536.0f; - } - else - { - //DE_STATIC_ASSERT((basisu_astc::meta::TypesSame<deFloat16, deUint16>::Value)); - // rg - REMOVING HDR SUPPORT FOR NOW -#if 0 - const deUint32 c0 = e0[channelNdx] << 4; - const deUint32 c1 = e1[channelNdx] << 4; - const deUint32 w = weight.w[ccs == channelNdx ? 1 : 0]; - const deUint32 c = (c0*(64-w) + c1*w + 32) / 64; - const deUint32 e = getBits(c, 11, 15); - const deUint32 m = getBits(c, 0, 10); - const deUint32 mt = m < 512 ? 3*m - : m >= 1536 ? 5*m - 2048 - : 4*m - 512; - const deFloat16 cf = (deFloat16)((e << 10) + (mt >> 3)); - ((float*)dst)[texelNdx*4 + channelNdx] = deFloat16To32(isFloat16InfOrNan(cf) ? 0x7bff : cf); -#endif - } - } - } - } - return result; -} -DecompressResult decompressBlock (void* dst, const Block128& blockData, int blockWidth, int blockHeight, bool isSRGB, bool isLDR) -{ - DE_ASSERT(isLDR || !isSRGB); - // Decode block mode. - const ASTCBlockMode blockMode = getASTCBlockMode(blockData.getBits(0, 10)); - // Check for block mode errors. - if (blockMode.isError) - { - setASTCErrorColorBlock(dst, blockWidth, blockHeight, isSRGB); - return DECOMPRESS_RESULT_ERROR; - } - // Separate path for void-extent. - if (blockMode.isVoidExtent) - return decodeVoidExtentBlock(dst, blockData, blockWidth, blockHeight, isSRGB, isLDR); - // Compute weight grid values. - const int numWeights = computeNumWeights(blockMode); - const int numWeightDataBits = computeNumRequiredBits(blockMode.weightISEParams, numWeights); - const int numPartitions = (int)blockData.getBits(11, 12) + 1; - // Check for errors in weight grid, partition and dual-plane parameters. - if (numWeights > 64 || - numWeightDataBits > 96 || - numWeightDataBits < 24 || - blockMode.weightGridWidth > blockWidth || - blockMode.weightGridHeight > blockHeight || - (numPartitions == 4 && blockMode.isDualPlane)) - { - setASTCErrorColorBlock(dst, blockWidth, blockHeight, isSRGB); - return DECOMPRESS_RESULT_ERROR; - } - // Compute number of bits available for color endpoint data. - const bool isSingleUniqueCem = numPartitions == 1 || blockData.getBits(23, 24) == 0; - const int numConfigDataBits = (numPartitions == 1 ? 17 : isSingleUniqueCem ? 29 : 25 + 3*numPartitions) + - (blockMode.isDualPlane ? 2 : 0); - const int numBitsForColorEndpoints = 128 - numWeightDataBits - numConfigDataBits; - const int extraCemBitsStart = 127 - numWeightDataBits - (isSingleUniqueCem ? -1 - : numPartitions == 4 ? 7 - : numPartitions == 3 ? 4 - : numPartitions == 2 ? 1 - : 0); - // Decode color endpoint modes. - deUint32 colorEndpointModes[4]; - decodeColorEndpointModes(&colorEndpointModes[0], blockData, numPartitions, extraCemBitsStart); - const int numColorEndpointValues = computeNumColorEndpointValues(colorEndpointModes, numPartitions); - // Check for errors in color endpoint value count. - if (numColorEndpointValues > 18 || numBitsForColorEndpoints < (int)deDivRoundUp32(13*numColorEndpointValues, 5)) - { - setASTCErrorColorBlock(dst, blockWidth, blockHeight, isSRGB); - return DECOMPRESS_RESULT_ERROR; - } - // Compute color endpoints. - ColorEndpointPair colorEndpoints[4]; - computeColorEndpoints(&colorEndpoints[0], blockData, &colorEndpointModes[0], numPartitions, numColorEndpointValues, - computeMaximumRangeISEParams(numBitsForColorEndpoints, numColorEndpointValues), numBitsForColorEndpoints); - // Compute texel weights. - TexelWeightPair texelWeights[MAX_BLOCK_WIDTH*MAX_BLOCK_HEIGHT]; - computeTexelWeights(&texelWeights[0], blockData, blockWidth, blockHeight, blockMode); - // Set texel colors. - const int ccs = blockMode.isDualPlane ? (int)blockData.getBits(extraCemBitsStart-2, extraCemBitsStart-1) : -1; - const deUint32 partitionIndexSeed = numPartitions > 1 ? blockData.getBits(13, 22) : (deUint32)-1; - return setTexelColors(dst, &colorEndpoints[0], &texelWeights[0], ccs, partitionIndexSeed, numPartitions, blockWidth, blockHeight, isSRGB, isLDR, &colorEndpointModes[0]); -} - -} // anonymous - -bool decompress(uint8_t *pDst, const uint8_t * data, bool isSRGB, int blockWidth, int blockHeight) -{ - // rg - We only support LDR here, although adding back in HDR would be easy. - const bool isLDR = true; - DE_ASSERT(isLDR || !isSRGB); - - float linear[MAX_BLOCK_WIDTH * MAX_BLOCK_HEIGHT * 4]; - - const Block128 blockData(data); - if (decompressBlock(isSRGB ? (void*)pDst : (void*)& linear[0], - blockData, blockWidth, blockHeight, isSRGB, isLDR) != DECOMPRESS_RESULT_VALID_BLOCK) - return false; - - if (!isSRGB) - { - int pix = 0; - for (int i = 0; i < blockHeight; i++) - { - for (int j = 0; j < blockWidth; j++, pix++) - { - pDst[4 * pix + 0] = (uint8_t)(basisu_astc::clamp<int>((int)(linear[pix * 4 + 0] * 65536.0f + .5f), 0, 65535) >> 8); - pDst[4 * pix + 1] = (uint8_t)(basisu_astc::clamp<int>((int)(linear[pix * 4 + 1] * 65536.0f + .5f), 0, 65535) >> 8); - pDst[4 * pix + 2] = (uint8_t)(basisu_astc::clamp<int>((int)(linear[pix * 4 + 2] * 65536.0f + .5f), 0, 65535) >> 8); - pDst[4 * pix + 3] = (uint8_t)(basisu_astc::clamp<int>((int)(linear[pix * 4 + 3] * 65536.0f + .5f), 0, 65535) >> 8); - } - } - } - - return true; -} - -} // astc -} // basisu_astc - -#if defined(__GNUC__) -#pragma GCC diagnostic pop -#endif diff --git a/thirdparty/basis_universal/encoder/basisu_astc_decomp.h b/thirdparty/basis_universal/encoder/basisu_astc_decomp.h deleted file mode 100644 index 9ec2e46076..0000000000 --- a/thirdparty/basis_universal/encoder/basisu_astc_decomp.h +++ /dev/null @@ -1,43 +0,0 @@ -#ifndef _TCUASTCUTIL_HPP -#define _TCUASTCUTIL_HPP -/*------------------------------------------------------------------------- - * drawElements Quality Program Tester Core - * ---------------------------------------- - * - * Copyright 2016 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - *//*! - * \file - * \brief ASTC Utilities. - *//*--------------------------------------------------------------------*/ - -#include "../transcoder/basisu.h" // to pick up the iterator debug level madness -#include <vector> -#include <stdint.h> - -namespace basisu_astc -{ -namespace astc -{ - -// Unpacks a single ASTC block to pDst -// If isSRGB is true, the spec requires the decoder to scale the LDR 8-bit endpoints to 16-bit before interpolation slightly differently, -// which will lead to different outputs. So be sure to set it correctly (ideally it should match whatever the encoder did). -bool decompress(uint8_t* pDst, const uint8_t* data, bool isSRGB, int blockWidth, int blockHeight); - -} // astc -} // basisu - -#endif diff --git a/thirdparty/basis_universal/encoder/basisu_backend.cpp b/thirdparty/basis_universal/encoder/basisu_backend.cpp index 19911fcbb4..abb61750a6 100644 --- a/thirdparty/basis_universal/encoder/basisu_backend.cpp +++ b/thirdparty/basis_universal/encoder/basisu_backend.cpp @@ -49,22 +49,17 @@ namespace basisu m_output.clear(); } - void basisu_backend::init(basisu_frontend* pFront_end, basisu_backend_params& params, const basisu_backend_slice_desc_vec& slice_descs, const basist::etc1_global_selector_codebook* pGlobal_sel_codebook) + void basisu_backend::init(basisu_frontend* pFront_end, basisu_backend_params& params, const basisu_backend_slice_desc_vec& slice_descs) { m_pFront_end = pFront_end; m_params = params; m_slices = slice_descs; - m_pGlobal_sel_codebook = pGlobal_sel_codebook; - - debug_printf("basisu_backend::Init: Slices: %u, ETC1S: %u, EndpointRDOQualityThresh: %f, SelectorRDOQualityThresh: %f, UseGlobalSelCodebook: %u, GlobalSelCodebookPalBits: %u, GlobalSelCodebookModBits: %u, Use hybrid selector codebooks: %u\n", + + debug_printf("basisu_backend::Init: Slices: %u, ETC1S: %u, EndpointRDOQualityThresh: %f, SelectorRDOQualityThresh: %f\n", m_slices.size(), params.m_etc1s, params.m_endpoint_rdo_quality_thresh, - params.m_selector_rdo_quality_thresh, - params.m_use_global_sel_codebook, - params.m_global_sel_codebook_pal_bits, - params.m_global_sel_codebook_mod_bits, - params.m_use_hybrid_sel_codebooks); + params.m_selector_rdo_quality_thresh); debug_printf("Frontend endpoints: %u selectors: %u\n", m_pFront_end->get_total_endpoint_clusters(), m_pFront_end->get_total_selector_clusters()); @@ -106,63 +101,17 @@ namespace basisu m_selector_palette.resize(r.get_total_selector_clusters()); - if (m_params.m_use_global_sel_codebook) + for (uint32_t i = 0; i < r.get_total_selector_clusters(); i++) { - m_global_selector_palette_desc.resize(r.get_total_selector_clusters()); - - for (int i = 0; i < static_cast<int>(r.get_total_selector_clusters()); i++) - { - basist::etc1_selector_palette_entry& selector_pal_entry = m_selector_palette[i]; - - etc1_global_selector_cb_entry_desc& pal_entry_desc = m_global_selector_palette_desc[i]; - pal_entry_desc.m_pal_index = r.get_selector_cluster_global_selector_entry_ids()[i].m_palette_index; - pal_entry_desc.m_mod_index = r.get_selector_cluster_global_selector_entry_ids()[i].m_modifier.get_index(); - - pal_entry_desc.m_was_used = true; - if (m_params.m_use_hybrid_sel_codebooks) - pal_entry_desc.m_was_used = r.get_selector_cluster_uses_global_cb_vec()[i]; - - if (pal_entry_desc.m_was_used) - { - const etc_block& selector_bits = r.get_selector_cluster_selector_bits(i); - (void)selector_bits; - - basist::etc1_selector_palette_entry global_pal_entry(m_pGlobal_sel_codebook->get_entry(r.get_selector_cluster_global_selector_entry_ids()[i])); + etc1_selector_palette_entry& s = m_selector_palette[i]; - for (uint32_t y = 0; y < 4; y++) - { - for (uint32_t x = 0; x < 4; x++) - { - selector_pal_entry(x, y) = global_pal_entry(x, y); + const etc_block& selector_bits = r.get_selector_cluster_selector_bits(i); - assert(selector_bits.get_selector(x, y) == global_pal_entry(x, y)); - } - } - } - else - { - const etc_block& selector_bits = r.get_selector_cluster_selector_bits(i); - - for (uint32_t y = 0; y < 4; y++) - for (uint32_t x = 0; x < 4; x++) - selector_pal_entry[y * 4 + x] = static_cast<uint8_t>(selector_bits.get_selector(x, y)); - } - } - } - else - { - for (uint32_t i = 0; i < r.get_total_selector_clusters(); i++) + for (uint32_t y = 0; y < 4; y++) { - basist::etc1_selector_palette_entry& s = m_selector_palette[i]; - - const etc_block& selector_bits = r.get_selector_cluster_selector_bits(i); - - for (uint32_t y = 0; y < 4; y++) + for (uint32_t x = 0; x < 4; x++) { - for (uint32_t x = 0; x < 4; x++) - { - s[y * 4 + x] = static_cast<uint8_t>(selector_bits.get_selector(x, y)); - } + s[y * 4 + x] = static_cast<uint8_t>(selector_bits.get_selector(x, y)); } } } @@ -388,6 +337,8 @@ namespace basisu if (!is_video) return; + debug_printf("basisu_backend::check_for_valid_cr_blocks\n"); + uint32_t total_crs = 0; uint32_t total_invalid_crs = 0; @@ -454,6 +405,11 @@ namespace basisu void basisu_backend::create_encoder_blocks() { + debug_printf("basisu_backend::create_encoder_blocks\n"); + + interval_timer tm; + tm.start(); + basisu_frontend& r = *m_pFront_end; const bool is_video = r.get_params().m_tex_type == basist::cBASISTexTypeVideoFrames; @@ -565,6 +521,7 @@ namespace basisu { if ((is_video) && (endpoint_pred == basist::CR_ENDPOINT_PRED_INDEX)) continue; + int pred_block_x = block_x + g_endpoint_preds[endpoint_pred].m_dx; if ((pred_block_x < 0) || (pred_block_x >= (int)num_blocks_x)) continue; @@ -586,11 +543,23 @@ namespace basisu unpack_etc1(trial_etc_block, trial_colors); uint64_t trial_err = 0; - for (uint32_t p = 0; p < 16; p++) + if (r.get_params().m_perceptual) { - trial_err += color_distance(r.get_params().m_perceptual, src_pixels.get_ptr()[p], trial_colors[p], false); - if (trial_err > thresh_err) - break; + for (uint32_t p = 0; p < 16; p++) + { + trial_err += color_distance(true, src_pixels.get_ptr()[p], trial_colors[p], false); + if (trial_err > thresh_err) + break; + } + } + else + { + for (uint32_t p = 0; p < 16; p++) + { + trial_err += color_distance(false, src_pixels.get_ptr()[p], trial_colors[p], false); + if (trial_err > thresh_err) + break; + } } if (trial_err <= thresh_err) @@ -643,6 +612,8 @@ namespace basisu sort_selector_codebook(); check_for_valid_cr_blocks(); + + debug_printf("Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); } void basisu_backend::compute_slice_crcs() @@ -670,7 +641,9 @@ namespace basisu etc_block& output_block = *(etc_block*)gi.get_block_ptr(block_x, block_y); output_block.set_diff_bit(true); - output_block.set_flip_bit(true); + // Setting the flip bit to false to be compatible with the Khronos KDFS. + //output_block.set_flip_bit(true); + output_block.set_flip_bit(false); const uint32_t endpoint_index = m.m_endpoint_index; @@ -679,7 +652,7 @@ namespace basisu const uint32_t selector_idx = m.m_selector_index; - const basist::etc1_selector_palette_entry& selectors = m_selector_palette[selector_idx]; + const etc1_selector_palette_entry& selectors = m_selector_palette[selector_idx]; for (uint32_t sy = 0; sy < 4; sy++) for (uint32_t sx = 0; sx < 4; sx++) output_block.set_selector(sx, sy, selectors(sx, sy)); @@ -707,6 +680,9 @@ namespace basisu } // slice_index } + //uint32_t g_color_delta_hist[255 * 3 + 1]; + //uint32_t g_color_delta_bad_hist[255 * 3 + 1]; + // TODO: Split this into multiple methods. bool basisu_backend::encode_image() { @@ -737,6 +713,12 @@ namespace basisu uint_vec block_endpoint_indices, block_selector_indices; + interval_timer tm; + tm.start(); + + const int COLOR_DELTA_THRESH = 8; + const int SEL_DIFF_THRESHOLD = 11; + for (uint32_t slice_index = 0; slice_index < m_slices.size(); slice_index++) { //const int prev_frame_slice_index = is_video ? find_video_frame(slice_index, -1) : -1; @@ -782,7 +764,7 @@ namespace basisu } // block_x } // block_y - + for (uint32_t block_y = 0; block_y < num_blocks_y; block_y++) { for (uint32_t block_x = 0; block_x < num_blocks_x; block_x++) @@ -857,68 +839,170 @@ namespace basisu etc_block etc_blk(r.get_output_block(block_index)); const uint64_t cur_err = etc_blk.evaluate_etc1_error(src_pixels.get_ptr(), r.get_params().m_perceptual); + const uint32_t cur_inten5 = etc_blk.get_inten_table(0); + const etc1_endpoint_palette_entry& cur_endpoints = m_endpoint_palette[m.m_endpoint_index]; + if (cur_err) { const float endpoint_remap_thresh = maximum(1.0f, m_params.m_endpoint_rdo_quality_thresh); const uint64_t thresh_err = (uint64_t)(cur_err * endpoint_remap_thresh); - uint64_t best_trial_err = UINT64_MAX; - int best_trial_idx = 0; - - etc_block trial_etc_blk(etc_blk); + //const int MAX_ENDPOINT_SEARCH_DIST = (m_params.m_compression_level >= 2) ? 64 : 32; + const int MAX_ENDPOINT_SEARCH_DIST = (m_params.m_compression_level >= 2) ? 64 : 16; - const int MAX_ENDPOINT_SEARCH_DIST = 32; - const int search_dist = minimum<int>(iabs(endpoint_delta) - 1, MAX_ENDPOINT_SEARCH_DIST); - for (int d = -search_dist; d < search_dist; d++) + if (!g_cpu_supports_sse41) { - int trial_idx = prev_endpoint_index + d; - if (trial_idx < 0) - trial_idx += (int)r.get_total_endpoint_clusters(); - else if (trial_idx >= (int)r.get_total_endpoint_clusters()) - trial_idx -= (int)r.get_total_endpoint_clusters(); + const uint64_t initial_best_trial_err = UINT64_MAX; + uint64_t best_trial_err = initial_best_trial_err; + int best_trial_idx = 0; + + etc_block trial_etc_blk(etc_blk); + + const int search_dist = minimum<int>(iabs(endpoint_delta) - 1, MAX_ENDPOINT_SEARCH_DIST); + for (int d = -search_dist; d < search_dist; d++) + { + int trial_idx = prev_endpoint_index + d; + if (trial_idx < 0) + trial_idx += (int)r.get_total_endpoint_clusters(); + else if (trial_idx >= (int)r.get_total_endpoint_clusters()) + trial_idx -= (int)r.get_total_endpoint_clusters(); + + if (trial_idx == new_endpoint_index) + continue; + + // Skip it if this new endpoint palette entry is actually never used. + if (!m_new_endpoint_was_used[trial_idx]) + continue; + + const etc1_endpoint_palette_entry& p = m_endpoint_palette[m_endpoint_remap_table_new_to_old[trial_idx]]; + + if (m_params.m_compression_level <= 1) + { + if (p.m_inten5 > cur_inten5) + continue; + + int delta_r = iabs(cur_endpoints.m_color5.r - p.m_color5.r); + int delta_g = iabs(cur_endpoints.m_color5.g - p.m_color5.g); + int delta_b = iabs(cur_endpoints.m_color5.b - p.m_color5.b); + int color_delta = delta_r + delta_g + delta_b; + + if (color_delta > COLOR_DELTA_THRESH) + continue; + } - if (trial_idx == new_endpoint_index) - continue; + trial_etc_blk.set_block_color5_etc1s(p.m_color5); + trial_etc_blk.set_inten_tables_etc1s(p.m_inten5); - // Skip it if this new endpoint palette entry is actually never used. - if (!m_new_endpoint_was_used[trial_idx]) - continue; + uint64_t trial_err = trial_etc_blk.evaluate_etc1_error(src_pixels.get_ptr(), r.get_params().m_perceptual); + + if ((trial_err < best_trial_err) && (trial_err <= thresh_err)) + { + best_trial_err = trial_err; + best_trial_idx = trial_idx; + } + } + + if (best_trial_err != initial_best_trial_err) + { + m.m_endpoint_index = m_endpoint_remap_table_new_to_old[best_trial_idx]; - const etc1_endpoint_palette_entry& p = m_endpoint_palette[m_endpoint_remap_table_new_to_old[trial_idx]]; - trial_etc_blk.set_block_color5_etc1s(p.m_color5); - trial_etc_blk.set_inten_tables_etc1s(p.m_inten5); + new_endpoint_index = best_trial_idx; - uint64_t trial_err = trial_etc_blk.evaluate_etc1_error(src_pixels.get_ptr(), r.get_params().m_perceptual); + endpoint_delta = new_endpoint_index - prev_endpoint_index; - if (trial_err <= thresh_err) + total_endpoint_indices_remapped++; + } + } + else + { +#if BASISU_SUPPORT_SSE + uint8_t block_selectors[16]; + for (uint32_t i = 0; i < 16; i++) + block_selectors[i] = (uint8_t)etc_blk.get_selector(i & 3, i >> 2); + + const int64_t initial_best_trial_err = INT64_MAX; + int64_t best_trial_err = initial_best_trial_err; + int best_trial_idx = 0; + + const int search_dist = minimum<int>(iabs(endpoint_delta) - 1, MAX_ENDPOINT_SEARCH_DIST); + for (int d = -search_dist; d < search_dist; d++) { - if (trial_err < best_trial_err) + int trial_idx = prev_endpoint_index + d; + if (trial_idx < 0) + trial_idx += (int)r.get_total_endpoint_clusters(); + else if (trial_idx >= (int)r.get_total_endpoint_clusters()) + trial_idx -= (int)r.get_total_endpoint_clusters(); + + if (trial_idx == new_endpoint_index) + continue; + + // Skip it if this new endpoint palette entry is actually never used. + if (!m_new_endpoint_was_used[trial_idx]) + continue; + + const etc1_endpoint_palette_entry& p = m_endpoint_palette[m_endpoint_remap_table_new_to_old[trial_idx]]; + + if (m_params.m_compression_level <= 1) + { + if (p.m_inten5 > cur_inten5) + continue; + + int delta_r = iabs(cur_endpoints.m_color5.r - p.m_color5.r); + int delta_g = iabs(cur_endpoints.m_color5.g - p.m_color5.g); + int delta_b = iabs(cur_endpoints.m_color5.b - p.m_color5.b); + int color_delta = delta_r + delta_g + delta_b; + + if (color_delta > COLOR_DELTA_THRESH) + continue; + } + + color_rgba block_colors[4]; + etc_block::get_block_colors_etc1s(block_colors, p.m_color5, p.m_inten5); + + int64_t trial_err; + if (r.get_params().m_perceptual) + { + perceptual_distance_rgb_4_N_sse41(&trial_err, block_selectors, block_colors, src_pixels.get_ptr(), 16, best_trial_err); + } + else + { + linear_distance_rgb_4_N_sse41(&trial_err, block_selectors, block_colors, src_pixels.get_ptr(), 16, best_trial_err); + } + + //if (trial_err > thresh_err) + // g_color_delta_bad_hist[color_delta]++; + + if ((trial_err < best_trial_err) && (trial_err <= (int64_t)thresh_err)) { best_trial_err = trial_err; best_trial_idx = trial_idx; } } - } - if (best_trial_err != UINT64_MAX) - { - m.m_endpoint_index = m_endpoint_remap_table_new_to_old[best_trial_idx]; + if (best_trial_err != initial_best_trial_err) + { + m.m_endpoint_index = m_endpoint_remap_table_new_to_old[best_trial_idx]; - new_endpoint_index = best_trial_idx; + new_endpoint_index = best_trial_idx; - endpoint_delta = new_endpoint_index - prev_endpoint_index; + endpoint_delta = new_endpoint_index - prev_endpoint_index; - total_endpoint_indices_remapped++; - } - } - } + total_endpoint_indices_remapped++; + } +#endif // BASISU_SUPPORT_SSE + } // if (!g_cpu_supports_sse41) + + } // if (cur_err) + + } // if ((m_params.m_endpoint_rdo_quality_thresh > 1.0f) && (iabs(endpoint_delta) > 1) && (!block_endpoints_are_referenced(block_x, block_y))) if (endpoint_delta < 0) endpoint_delta += (int)r.get_total_endpoint_clusters(); delta_endpoint_histogram.inc(endpoint_delta); - } + + } // if (m.m_endpoint_predictor == basist::NO_ENDPOINT_PRED_INDEX) block_endpoint_indices.push_back(m_endpoint_remap_table_new_to_old[new_endpoint_index]); @@ -927,10 +1011,13 @@ namespace basisu if ((!is_video) || (m.m_endpoint_predictor != basist::CR_ENDPOINT_PRED_INDEX)) { int new_selector_index = m_selector_remap_table_old_to_new[m.m_selector_index]; + + const float selector_remap_thresh = maximum(1.0f, m_params.m_selector_rdo_quality_thresh); //2.5f; int selector_history_buf_index = -1; - if (m.m_is_cr_target) + // At low comp levels this hurts compression a tiny amount, but is significantly faster so it's a good tradeoff. + if ((m.m_is_cr_target) || (m_params.m_compression_level <= 1)) { for (uint32_t j = 0; j < selector_history_buf.size(); j++) { @@ -944,89 +1031,99 @@ namespace basisu } } } - else + + // If the block is a CR target we can't override its selectors. + if ((!m.m_is_cr_target) && (selector_history_buf_index == -1)) { const pixel_block& src_pixels = r.get_source_pixel_block(block_index); - const etc_block& etc_blk = r.get_output_block(block_index); + etc_block etc_blk = r.get_output_block(block_index); + + // This is new code - the initial release just used the endpoints from the frontend, which isn't correct/accurate. + const etc1_endpoint_palette_entry& q = m_endpoint_palette[m_endpoint_remap_table_new_to_old[new_endpoint_index]]; + etc_blk.set_block_color5_etc1s(q.m_color5); + etc_blk.set_inten_tables_etc1s(q.m_inten5); + + color_rgba block_colors[4]; + etc_blk.get_block_colors(block_colors, 0); - color_rgba etc_blk_unpacked[16]; - unpack_etc1(etc_blk, etc_blk_unpacked); + const uint8_t* pCur_selectors = &m_selector_palette[m.m_selector_index][0]; uint64_t cur_err = 0; if (r.get_params().m_perceptual) { for (uint32_t p = 0; p < 16; p++) - cur_err += color_distance(true, src_pixels.get_ptr()[p], etc_blk_unpacked[p], false); + cur_err += color_distance(true, src_pixels.get_ptr()[p], block_colors[pCur_selectors[p]], false); } else { for (uint32_t p = 0; p < 16; p++) - cur_err += color_distance(false, src_pixels.get_ptr()[p], etc_blk_unpacked[p], false); + cur_err += color_distance(false, src_pixels.get_ptr()[p], block_colors[pCur_selectors[p]], false); } - + + const uint64_t limit_err = (uint64_t)ceilf(cur_err * selector_remap_thresh); + + // Even if cur_err==limit_err, we still want to scan the history buffer because there may be equivalent entries that are cheaper to code. + uint64_t best_trial_err = UINT64_MAX; int best_trial_idx = 0; uint32_t best_trial_history_buf_idx = 0; - const float selector_remap_thresh = maximum(1.0f, m_params.m_selector_rdo_quality_thresh); //2.5f; - const bool use_strict_search = (m_params.m_compression_level == 0) && (selector_remap_thresh == 1.0f); - - const uint64_t limit_err = (uint64_t)ceilf(cur_err * selector_remap_thresh); - for (uint32_t j = 0; j < selector_history_buf.size(); j++) { const int trial_idx = selector_history_buf[j]; - if (use_strict_search) + const uint8_t* pSelectors = &m_selector_palette[m_selector_remap_table_new_to_old[trial_idx]][0]; + + if (m_params.m_compression_level <= 1) { - if (trial_idx == new_selector_index) + // Predict if evaluating the full color error would cause an early out, by summing the abs err of the selector indices. + int sel_diff = 0; + for (uint32_t p = 0; p < 16; p += 4) { - best_trial_err = 0; - best_trial_idx = trial_idx; - best_trial_history_buf_idx = j; - break; + sel_diff += iabs(pCur_selectors[p + 0] - pSelectors[p + 0]); + sel_diff += iabs(pCur_selectors[p + 1] - pSelectors[p + 1]); + sel_diff += iabs(pCur_selectors[p + 2] - pSelectors[p + 2]); + sel_diff += iabs(pCur_selectors[p + 3] - pSelectors[p + 3]); + if (sel_diff >= SEL_DIFF_THRESHOLD) + break; } + if (sel_diff >= SEL_DIFF_THRESHOLD) + continue; } - else - { - uint64_t trial_err = 0; - const uint64_t thresh_err = minimum(limit_err, best_trial_err); - - color_rgba block_colors[4]; - etc_blk.get_block_colors(block_colors, 0); - - const uint8_t* pSelectors = &m_selector_palette[m_selector_remap_table_new_to_old[trial_idx]](0, 0); - if (r.get_params().m_perceptual) + const uint64_t thresh_err = minimum(limit_err, best_trial_err); + uint64_t trial_err = 0; + + // This tends to early out quickly, so SSE has a hard time competing. + if (r.get_params().m_perceptual) + { + for (uint32_t p = 0; p < 16; p++) { - for (uint32_t p = 0; p < 16; p++) - { - uint32_t sel = pSelectors[p]; - trial_err += color_distance(true, src_pixels.get_ptr()[p], block_colors[sel], false); - if (trial_err > thresh_err) - break; - } + uint32_t sel = pSelectors[p]; + trial_err += color_distance(true, src_pixels.get_ptr()[p], block_colors[sel], false); + if (trial_err > thresh_err) + break; } - else + } + else + { + for (uint32_t p = 0; p < 16; p++) { - for (uint32_t p = 0; p < 16; p++) - { - uint32_t sel = pSelectors[p]; - trial_err += color_distance(false, src_pixels.get_ptr()[p], block_colors[sel], false); - if (trial_err > thresh_err) - break; - } + uint32_t sel = pSelectors[p]; + trial_err += color_distance(false, src_pixels.get_ptr()[p], block_colors[sel], false); + if (trial_err > thresh_err) + break; } + } - if ((trial_err < best_trial_err) && (trial_err <= thresh_err)) - { - assert(trial_err <= limit_err); - - best_trial_err = trial_err; - best_trial_idx = trial_idx; - best_trial_history_buf_idx = j; - } + if ((trial_err < best_trial_err) && (trial_err <= thresh_err)) + { + assert(trial_err <= limit_err); + + best_trial_err = trial_err; + best_trial_idx = trial_idx; + best_trial_history_buf_idx = j; } } @@ -1043,6 +1140,7 @@ namespace basisu selector_history_buf_histogram.inc(best_trial_history_buf_idx); } + } // if (m_params.m_selector_rdo_quality_thresh > 0.0f) m.m_selector_index = m_selector_remap_table_new_to_old[new_selector_index]; @@ -1164,6 +1262,14 @@ namespace basisu } // slice_index + //for (int i = 0; i <= 255 * 3; i++) + //{ + // printf("%u, %u, %f\n", g_color_delta_bad_hist[i], g_color_delta_hist[i], g_color_delta_hist[i] ? g_color_delta_bad_hist[i] / (float)g_color_delta_hist[i] : 0); + //} + + double total_prep_time = tm.get_elapsed_secs(); + debug_printf("basisu_backend::encode_image: Total prep time: %3.2f\n", total_prep_time); + debug_printf("Endpoint pred RDO total endpoint indices remapped: %u %3.2f%%\n", total_endpoint_indices_remapped, total_endpoint_indices_remapped * 100.0f / get_total_blocks()); @@ -1554,215 +1660,82 @@ namespace basisu bool basisu_backend::encode_selector_palette() { const basisu_frontend& r = *m_pFront_end; + + histogram delta_selector_pal_histogram(256); - if ((m_params.m_use_global_sel_codebook) && (!m_params.m_use_hybrid_sel_codebooks)) + for (uint32_t q = 0; q < r.get_total_selector_clusters(); q++) { - histogram global_mod_indices(1 << m_params.m_global_sel_codebook_mod_bits); - - for (uint32_t q = 0; q < r.get_total_selector_clusters(); q++) - global_mod_indices.inc(m_global_selector_palette_desc[q].m_mod_index); - - huffman_encoding_table global_pal_model, global_mod_model; - - if (!global_mod_model.init(global_mod_indices, 16)) - { - error_printf("global_mod_model.init() failed!"); - return false; - } - - bitwise_coder coder; - coder.init(1024 * 1024); - - coder.put_bits(1, 1); // use global codebook - - coder.put_bits(m_params.m_global_sel_codebook_pal_bits, 4); // pal bits - coder.put_bits(m_params.m_global_sel_codebook_mod_bits, 4); // mod bits - - uint32_t mod_model_bits = 0; - if (m_params.m_global_sel_codebook_mod_bits) - mod_model_bits = coder.emit_huffman_table(global_mod_model); - - uint32_t total_pal_bits = 0; - uint32_t total_mod_bits = 0; - for (uint32_t q = 0; q < r.get_total_selector_clusters(); q++) - { - const uint32_t i = m_selector_remap_table_new_to_old[q]; - - if (m_params.m_global_sel_codebook_pal_bits) - { - coder.put_bits(m_global_selector_palette_desc[i].m_pal_index, m_params.m_global_sel_codebook_pal_bits); - total_pal_bits += m_params.m_global_sel_codebook_pal_bits; - } - - if (m_params.m_global_sel_codebook_mod_bits) - total_mod_bits += coder.put_code(m_global_selector_palette_desc[i].m_mod_index, global_mod_model); - } - - coder.flush(); + if (!q) + continue; - m_output.m_selector_palette = coder.get_bytes(); + const etc1_selector_palette_entry& cur = m_selector_palette[m_selector_remap_table_new_to_old[q]]; + const etc1_selector_palette_entry predictor(m_selector_palette[m_selector_remap_table_new_to_old[q - 1]]); - debug_printf("Modifier model bits: %u Avg per entry: %3.3f\n", mod_model_bits, mod_model_bits / float(r.get_total_selector_clusters())); - debug_printf("Palette bits: %u Avg per entry: %3.3f, Modifier bits: %u Avg per entry: %3.3f\n", total_pal_bits, total_pal_bits / float(r.get_total_selector_clusters()), total_mod_bits, total_mod_bits / float(r.get_total_selector_clusters())); + for (uint32_t j = 0; j < 4; j++) + delta_selector_pal_histogram.inc(cur.get_byte(j) ^ predictor.get_byte(j)); } - else if (m_params.m_use_hybrid_sel_codebooks) - { - huff2D used_global_cb_bitflag_huff2D(1, 8); - - histogram global_mod_indices(1 << m_params.m_global_sel_codebook_mod_bits); - - for (uint32_t s = 0; s < r.get_total_selector_clusters(); s++) - { - const uint32_t q = m_selector_remap_table_new_to_old[s]; - - const bool used_global_cb_flag = r.get_selector_cluster_uses_global_cb_vec()[q]; - - used_global_cb_bitflag_huff2D.emit(used_global_cb_flag); - global_mod_indices.inc(m_global_selector_palette_desc[q].m_mod_index); - } - - huffman_encoding_table global_mod_indices_model; - if (!global_mod_indices_model.init(global_mod_indices, 16)) - { - error_printf("global_mod_indices_model.init() failed!"); - return false; - } - - bitwise_coder coder; - coder.init(1024 * 1024); + if (!delta_selector_pal_histogram.get_total()) + delta_selector_pal_histogram.inc(0); - coder.put_bits(0, 1); // use global codebook - coder.put_bits(1, 1); // uses hybrid codebooks + huffman_encoding_table delta_selector_pal_model; + if (!delta_selector_pal_model.init(delta_selector_pal_histogram, 16)) + { + error_printf("delta_selector_pal_model.init() failed!"); + return false; + } - coder.put_bits(m_params.m_global_sel_codebook_pal_bits, 4); // pal bits - coder.put_bits(m_params.m_global_sel_codebook_mod_bits, 4); // mod bits + bitwise_coder coder; + coder.init(1024 * 1024); - used_global_cb_bitflag_huff2D.start_encoding(16); - coder.emit_huffman_table(used_global_cb_bitflag_huff2D.get_encoding_table()); + coder.put_bits(0, 1); // use global codebook + coder.put_bits(0, 1); // uses hybrid codebooks - if (m_params.m_global_sel_codebook_mod_bits) - coder.emit_huffman_table(global_mod_indices_model); + coder.put_bits(0, 1); // raw bytes - uint32_t total_global_cb_entries = 0; - uint32_t total_pal_bits = 0; - uint32_t total_mod_bits = 0; - uint32_t total_selectors = 0; - uint32_t total_selector_bits = 0; - uint32_t total_flag_bits = 0; + coder.emit_huffman_table(delta_selector_pal_model); - for (uint32_t s = 0; s < r.get_total_selector_clusters(); s++) + for (uint32_t q = 0; q < r.get_total_selector_clusters(); q++) + { + if (!q) { - const uint32_t q = m_selector_remap_table_new_to_old[s]; - - total_flag_bits += used_global_cb_bitflag_huff2D.emit_next_sym(coder); - - const bool used_global_cb_flag = r.get_selector_cluster_uses_global_cb_vec()[q]; - - if (used_global_cb_flag) - { - total_global_cb_entries++; - - total_pal_bits += coder.put_bits(r.get_selector_cluster_global_selector_entry_ids()[q].m_palette_index, m_params.m_global_sel_codebook_pal_bits); - total_mod_bits += coder.put_code(r.get_selector_cluster_global_selector_entry_ids()[q].m_modifier.get_index(), global_mod_indices_model); - } - else - { - total_selectors++; - total_selector_bits += 32; - - for (uint32_t j = 0; j < 4; j++) - coder.put_bits(m_selector_palette[q].get_byte(j), 8); - } + for (uint32_t j = 0; j < 4; j++) + coder.put_bits(m_selector_palette[m_selector_remap_table_new_to_old[q]].get_byte(j), 8); + continue; } - coder.flush(); + const etc1_selector_palette_entry& cur = m_selector_palette[m_selector_remap_table_new_to_old[q]]; + const etc1_selector_palette_entry predictor(m_selector_palette[m_selector_remap_table_new_to_old[q - 1]]); - m_output.m_selector_palette = coder.get_bytes(); - - debug_printf("Total global CB entries: %u %3.2f%%\n", total_global_cb_entries, total_global_cb_entries * 100.0f / r.get_total_selector_clusters()); - debug_printf("Total selector entries: %u %3.2f%%\n", total_selectors, total_selectors * 100.0f / r.get_total_selector_clusters()); - debug_printf("Total pal bits: %u, mod bits: %u, selector bits: %u, flag bits: %u\n", total_pal_bits, total_mod_bits, total_selector_bits, total_flag_bits); + for (uint32_t j = 0; j < 4; j++) + coder.put_code(cur.get_byte(j) ^ predictor.get_byte(j), delta_selector_pal_model); } - else - { - histogram delta_selector_pal_histogram(256); - - for (uint32_t q = 0; q < r.get_total_selector_clusters(); q++) - { - if (!q) - continue; - const basist::etc1_selector_palette_entry& cur = m_selector_palette[m_selector_remap_table_new_to_old[q]]; - const basist::etc1_selector_palette_entry predictor(m_selector_palette[m_selector_remap_table_new_to_old[q - 1]]); - - for (uint32_t j = 0; j < 4; j++) - delta_selector_pal_histogram.inc(cur.get_byte(j) ^ predictor.get_byte(j)); - } - - if (!delta_selector_pal_histogram.get_total()) - delta_selector_pal_histogram.inc(0); + coder.flush(); - huffman_encoding_table delta_selector_pal_model; - if (!delta_selector_pal_model.init(delta_selector_pal_histogram, 16)) - { - error_printf("delta_selector_pal_model.init() failed!"); - return false; - } + m_output.m_selector_palette = coder.get_bytes(); - bitwise_coder coder; + if (m_output.m_selector_palette.size() >= r.get_total_selector_clusters() * 4) + { coder.init(1024 * 1024); coder.put_bits(0, 1); // use global codebook coder.put_bits(0, 1); // uses hybrid codebooks - coder.put_bits(0, 1); // raw bytes - - coder.emit_huffman_table(delta_selector_pal_model); + coder.put_bits(1, 1); // raw bytes for (uint32_t q = 0; q < r.get_total_selector_clusters(); q++) { - if (!q) - { - for (uint32_t j = 0; j < 4; j++) - coder.put_bits(m_selector_palette[m_selector_remap_table_new_to_old[q]].get_byte(j), 8); - continue; - } - - const basist::etc1_selector_palette_entry& cur = m_selector_palette[m_selector_remap_table_new_to_old[q]]; - const basist::etc1_selector_palette_entry predictor(m_selector_palette[m_selector_remap_table_new_to_old[q - 1]]); + const uint32_t i = m_selector_remap_table_new_to_old[q]; for (uint32_t j = 0; j < 4; j++) - coder.put_code(cur.get_byte(j) ^ predictor.get_byte(j), delta_selector_pal_model); + coder.put_bits(m_selector_palette[i].get_byte(j), 8); } coder.flush(); m_output.m_selector_palette = coder.get_bytes(); - - if (m_output.m_selector_palette.size() >= r.get_total_selector_clusters() * 4) - { - coder.init(1024 * 1024); - - coder.put_bits(0, 1); // use global codebook - coder.put_bits(0, 1); // uses hybrid codebooks - - coder.put_bits(1, 1); // raw bytes - - for (uint32_t q = 0; q < r.get_total_selector_clusters(); q++) - { - const uint32_t i = m_selector_remap_table_new_to_old[q]; - - for (uint32_t j = 0; j < 4; j++) - coder.put_bits(m_selector_palette[i].get_byte(j), 8); - } - - coder.flush(); - - m_output.m_selector_palette = coder.get_bytes(); - } - - } // if (m_params.m_use_global_sel_codebook) + } debug_printf("Selector codebook bits: %u bytes: %u, Bits per entry: %3.1f, Avg bits/texel: %3.3f\n", (int)m_output.m_selector_palette.size() * 8, (int)m_output.m_selector_palette.size(), diff --git a/thirdparty/basis_universal/encoder/basisu_backend.h b/thirdparty/basis_universal/encoder/basisu_backend.h index 393dccd22f..07778aeb9b 100644 --- a/thirdparty/basis_universal/encoder/basisu_backend.h +++ b/thirdparty/basis_universal/encoder/basisu_backend.h @@ -17,11 +17,86 @@ #include "../transcoder/basisu.h" #include "basisu_enc.h" #include "../transcoder/basisu_transcoder_internal.h" -#include "../transcoder/basisu_global_selector_palette.h" #include "basisu_frontend.h" namespace basisu { + struct etc1_selector_palette_entry + { + etc1_selector_palette_entry() + { + clear(); + } + + void clear() + { + basisu::clear_obj(*this); + } + + uint8_t operator[] (uint32_t i) const { assert(i < 16); return m_selectors[i]; } + uint8_t& operator[] (uint32_t i) { assert(i < 16); return m_selectors[i]; } + + void set_uint32(uint32_t v) + { + for (uint32_t byte_index = 0; byte_index < 4; byte_index++) + { + uint32_t b = (v >> (byte_index * 8)) & 0xFF; + + m_selectors[byte_index * 4 + 0] = b & 3; + m_selectors[byte_index * 4 + 1] = (b >> 2) & 3; + m_selectors[byte_index * 4 + 2] = (b >> 4) & 3; + m_selectors[byte_index * 4 + 3] = (b >> 6) & 3; + } + } + + uint32_t get_uint32() const + { + return get_byte(0) | (get_byte(1) << 8) | (get_byte(2) << 16) | (get_byte(3) << 24); + } + + uint32_t get_byte(uint32_t byte_index) const + { + assert(byte_index < 4); + + return m_selectors[byte_index * 4 + 0] | + (m_selectors[byte_index * 4 + 1] << 2) | + (m_selectors[byte_index * 4 + 2] << 4) | + (m_selectors[byte_index * 4 + 3] << 6); + } + + uint8_t operator()(uint32_t x, uint32_t y) const { assert((x < 4) && (y < 4)); return m_selectors[x + y * 4]; } + uint8_t& operator()(uint32_t x, uint32_t y) { assert((x < 4) && (y < 4)); return m_selectors[x + y * 4]; } + + bool operator< (const etc1_selector_palette_entry& other) const + { + for (uint32_t i = 0; i < 16; i++) + { + if (m_selectors[i] < other.m_selectors[i]) + return true; + else if (m_selectors[i] != other.m_selectors[i]) + return false; + } + + return false; + } + + bool operator== (const etc1_selector_palette_entry& other) const + { + for (uint32_t i = 0; i < 16; i++) + { + if (m_selectors[i] != other.m_selectors[i]) + return false; + } + + return true; + } + + private: + uint8_t m_selectors[16]; + }; + + typedef basisu::vector<etc1_selector_palette_entry> etc1_selector_palette_entry_vec; + struct encoder_block { encoder_block() @@ -78,14 +153,11 @@ namespace basisu float m_endpoint_rdo_quality_thresh; float m_selector_rdo_quality_thresh; uint32_t m_compression_level; - - bool m_use_global_sel_codebook; - uint32_t m_global_sel_codebook_pal_bits; - uint32_t m_global_sel_codebook_mod_bits; - bool m_use_hybrid_sel_codebooks; - + bool m_used_global_codebooks; + bool m_validate; + basisu_backend_params() { clear(); @@ -99,12 +171,8 @@ namespace basisu m_endpoint_rdo_quality_thresh = 0.0f; m_selector_rdo_quality_thresh = 0.0f; m_compression_level = 0; - - m_use_global_sel_codebook = false; - m_global_sel_codebook_pal_bits = ETC1_GLOBAL_SELECTOR_CODEBOOK_MAX_PAL_BITS; - m_global_sel_codebook_mod_bits = basist::etc1_global_palette_entry_modifier::cTotalBits; - m_use_hybrid_sel_codebooks = false; m_used_global_codebooks = false; + m_validate = true; } }; @@ -205,7 +273,7 @@ namespace basisu void clear(); - void init(basisu_frontend *pFront_end, basisu_backend_params ¶ms, const basisu_backend_slice_desc_vec &slice_desc, const basist::etc1_global_selector_codebook *pGlobal_sel_codebook); + void init(basisu_frontend *pFront_end, basisu_backend_params ¶ms, const basisu_backend_slice_desc_vec &slice_desc); uint32_t encode(); @@ -217,10 +285,9 @@ namespace basisu basisu_backend_params m_params; basisu_backend_slice_desc_vec m_slices; basisu_backend_output m_output; - const basist::etc1_global_selector_codebook *m_pGlobal_sel_codebook; - + etc1_endpoint_palette_entry_vec m_endpoint_palette; - basist::etc1_selector_palette_entry_vec m_selector_palette; + etc1_selector_palette_entry_vec m_selector_palette; struct etc1_global_selector_cb_entry_desc { diff --git a/thirdparty/basis_universal/encoder/basisu_comp.cpp b/thirdparty/basis_universal/encoder/basisu_comp.cpp index 10f96cec4a..166a1c4fe0 100644 --- a/thirdparty/basis_universal/encoder/basisu_comp.cpp +++ b/thirdparty/basis_universal/encoder/basisu_comp.cpp @@ -21,6 +21,8 @@ #define MINIZ_NO_ZLIB_COMPATIBLE_NAMES #include "basisu_miniz.h" +#include "basisu_opencl.h" + #if !BASISD_SUPPORT_KTX2 #error BASISD_SUPPORT_KTX2 must be enabled (set to 1). #endif @@ -45,21 +47,45 @@ using namespace buminiz; namespace basisu { basis_compressor::basis_compressor() : + m_pOpenCL_context(nullptr), m_basis_file_size(0), m_basis_bits_per_texel(0.0f), m_total_blocks(0), - m_auto_global_sel_pal(false), - m_any_source_image_has_alpha(false) + m_any_source_image_has_alpha(false), + m_opencl_failed(false) { debug_printf("basis_compressor::basis_compressor\n"); + + assert(g_library_initialized); } + basis_compressor::~basis_compressor() + { + if (m_pOpenCL_context) + { + opencl_destroy_context(m_pOpenCL_context); + m_pOpenCL_context = nullptr; + } + } + bool basis_compressor::init(const basis_compressor_params ¶ms) { debug_printf("basis_compressor::init\n"); + + if (!g_library_initialized) + { + error_printf("basis_compressor::init: basisu_encoder_init() MUST be called before using any encoder functionality!\n"); + return false; + } + if (!params.m_pJob_pool) + { + error_printf("basis_compressor::init: A non-null job_pool pointer must be specified\n"); + return false; + } + m_params = params; - + if (m_params.m_debug) { debug_printf("basis_compressor::init:\n"); @@ -68,9 +94,7 @@ namespace basisu #define PRINT_INT_VALUE(v) debug_printf("%s: %i %u\n", BASISU_STRINGIZE2(v), static_cast<int>(m_params.v), m_params.v.was_changed()); #define PRINT_UINT_VALUE(v) debug_printf("%s: %u %u\n", BASISU_STRINGIZE2(v), static_cast<uint32_t>(m_params.v), m_params.v.was_changed()); #define PRINT_FLOAT_VALUE(v) debug_printf("%s: %f %u\n", BASISU_STRINGIZE2(v), static_cast<float>(m_params.v), m_params.v.was_changed()); - - debug_printf("Has global selector codebook: %i\n", m_params.m_pSel_codebook != nullptr); - + debug_printf("Source images: %u, source filenames: %u, source alpha filenames: %i, Source mipmap images: %u\n", m_params.m_source_images.size(), m_params.m_source_filenames.size(), m_params.m_source_alpha_filenames.size(), m_params.m_source_mipmap_images.size()); @@ -83,14 +107,12 @@ namespace basisu } PRINT_BOOL_VALUE(m_uastc); + PRINT_BOOL_VALUE(m_use_opencl); PRINT_BOOL_VALUE(m_y_flip); PRINT_BOOL_VALUE(m_debug); - PRINT_BOOL_VALUE(m_validate); + PRINT_BOOL_VALUE(m_validate_etc1s); PRINT_BOOL_VALUE(m_debug_images); - PRINT_BOOL_VALUE(m_global_sel_pal); - PRINT_BOOL_VALUE(m_auto_global_sel_pal); PRINT_INT_VALUE(m_compression_level); - PRINT_BOOL_VALUE(m_no_hybrid_sel_cb); PRINT_BOOL_VALUE(m_perceptual); PRINT_BOOL_VALUE(m_no_endpoint_rdo); PRINT_BOOL_VALUE(m_no_selector_rdo); @@ -107,12 +129,7 @@ namespace basisu PRINT_BOOL_VALUE(m_renormalize); PRINT_BOOL_VALUE(m_multithreading); PRINT_BOOL_VALUE(m_disable_hierarchical_endpoint_codebooks); - - PRINT_FLOAT_VALUE(m_hybrid_sel_cb_quality_thresh); - - PRINT_INT_VALUE(m_global_pal_bits); - PRINT_INT_VALUE(m_global_mod_bits); - + PRINT_FLOAT_VALUE(m_endpoint_rdo_thresh); PRINT_FLOAT_VALUE(m_selector_rdo_thresh); @@ -148,6 +165,7 @@ namespace basisu PRINT_INT_VALUE(m_resample_width); PRINT_INT_VALUE(m_resample_height); PRINT_FLOAT_VALUE(m_resample_factor); + debug_printf("Has global codebooks: %u\n", m_params.m_pGlobal_codebooks ? 1 : 0); if (m_params.m_pGlobal_codebooks) { @@ -165,6 +183,8 @@ namespace basisu debug_printf("Key: \"%s\"\n", m_params.m_ktx2_key_values[i].m_key.data()); debug_printf("Value size: %u\n", m_params.m_ktx2_key_values[i].m_value.size()); } + + PRINT_BOOL_VALUE(m_validate_output_data); #undef PRINT_BOOL_VALUE #undef PRINT_INT_VALUE @@ -178,6 +198,20 @@ namespace basisu return false; } + if ((m_params.m_compute_stats) && (!m_params.m_validate_output_data)) + { + m_params.m_validate_output_data = true; + + debug_printf("Note: m_compute_stats is true, so forcing m_validate_output_data to true as well\n"); + } + + if ((m_params.m_use_opencl) && opencl_is_available() && !m_pOpenCL_context && !m_opencl_failed) + { + m_pOpenCL_context = opencl_create_context(); + if (!m_pOpenCL_context) + m_opencl_failed = true; + } + return true; } @@ -424,7 +458,7 @@ namespace basisu #endif if (m_params.m_debug) - debug_printf("Total mipmap generation time: %f secs\n", tm.get_elapsed_secs()); + debug_printf("Total mipmap generation time: %3.3f secs\n", tm.get_elapsed_secs()); return true; } @@ -579,11 +613,11 @@ namespace basisu if ((file_image.get_width() > BASISU_MAX_SUPPORTED_TEXTURE_DIMENSION) || (file_image.get_height() > BASISU_MAX_SUPPORTED_TEXTURE_DIMENSION)) { - error_printf("basis_compressor::read_source_images: Source image is too large!\n"); + error_printf("basis_compressor::read_source_images: Source image \"%s\" is too large!\n", pSource_filename); return false; } - source_images.push_back(file_image); + source_images.enlarge(1)->swap(file_image); source_filenames.push_back(pSource_filename); } @@ -624,17 +658,19 @@ namespace basisu for (uint32_t source_file_index = 0; source_file_index < total_source_files; source_file_index++) { - image &file_image = source_images[source_file_index]; const std::string &source_filename = source_filenames[source_file_index]; // Now, for each source image, create the slices corresponding to that image. basisu::vector<image> slices; slices.reserve(32); - + // The first (largest) mipmap level. - slices.push_back(file_image); - + image& file_image = source_images[source_file_index]; + + // Reserve a slot for mip0. + slices.resize(1); + if (m_params.m_source_mipmap_images.size()) { // User-provided mipmaps for each layer or image in the texture array. @@ -666,6 +702,10 @@ namespace basisu return false; } + // Swap in the largest mipmap level here to avoid copying it, because generate_mips() will change the array. + // NOTE: file_image is now blank. + slices[0].swap(file_image); + uint_vec mip_indices(slices.size()); for (uint32_t i = 0; i < slices.size(); i++) mip_indices[i] = i; @@ -734,18 +774,16 @@ namespace basisu save_png(string_format("basis_debug_source_image_%u_slice_%u.png", source_file_index, slice_index).c_str(), slice_image); } + const uint32_t dest_image_index = m_slice_images.size(); + enlarge_vector(m_stats, 1); enlarge_vector(m_slice_images, 1); enlarge_vector(m_slice_descs, 1); - - const uint32_t dest_image_index = (uint32_t)m_stats.size() - 1; - + m_stats[dest_image_index].m_filename = source_filename.c_str(); m_stats[dest_image_index].m_width = orig_width; m_stats[dest_image_index].m_height = orig_height; - - m_slice_images[dest_image_index] = slice_image; - + debug_printf("****** Slice %u: mip %u, alpha_slice: %u, filename: \"%s\", original: %ux%u actual: %ux%u\n", m_slice_descs.size() - 1, mip_indices[slice_index], is_alpha_slice, source_filename.c_str(), orig_width, orig_height, slice_image.get_width(), slice_image.get_height()); basisu_backend_slice_desc &slice_desc = m_slice_descs[dest_image_index]; @@ -777,6 +815,10 @@ namespace basisu m_total_blocks += slice_desc.m_num_blocks_x * slice_desc.m_num_blocks_y; total_macroblocks += slice_desc.m_num_macroblocks_x * slice_desc.m_num_macroblocks_y; + + // Finally, swap in the slice's image to avoid copying it. + // NOTE: slice_image is now blank. + m_slice_images[dest_image_index].swap(slice_image); } // slice_index @@ -1055,7 +1097,7 @@ namespace basisu endpoint_clusters = clamp<uint32_t>((uint32_t)(.5f + lerp<float>(ENDPOINT_CODEBOOK_MID_QUALITY_CODEBOOK_SIZE, static_cast<float>(max_endpoints), color_endpoint_quality)), 32, basisu_frontend::cMaxEndpointClusters); } - float bits_per_selector_cluster = m_params.m_global_sel_pal ? 21.0f : 14.0f; + float bits_per_selector_cluster = 14.0f; const float max_desired_selector_cluster_bits_per_texel = 1.0f; // .15f int max_selectors = static_cast<int>((max_desired_selector_cluster_bits_per_texel * total_texels) / bits_per_selector_cluster); @@ -1110,21 +1152,7 @@ namespace basisu m_params.m_selector_rdo_thresh *= lerp<float>(1.0f, .75f, l); } } - - m_auto_global_sel_pal = false; - if (!m_params.m_global_sel_pal && m_params.m_auto_global_sel_pal) - { - const float bits_per_selector_cluster = 31.0f; - double selector_codebook_bpp_est = (bits_per_selector_cluster * selector_clusters) / total_texels; - debug_printf("selector_codebook_bpp_est: %f\n", selector_codebook_bpp_est); - const float force_global_sel_pal_bpp_threshold = .15f; - if ((total_texels <= 128.0f*128.0f) && (selector_codebook_bpp_est > force_global_sel_pal_bpp_threshold)) - { - m_auto_global_sel_pal = true; - debug_printf("Auto global selector palette enabled\n"); - } - } - + basisu_frontend::params p; p.m_num_source_blocks = m_total_blocks; p.m_pSource_blocks = &m_source_blocks[0]; @@ -1137,27 +1165,24 @@ namespace basisu p.m_tex_type = m_params.m_tex_type; p.m_multithreaded = m_params.m_multithreading; p.m_disable_hierarchical_endpoint_codebooks = m_params.m_disable_hierarchical_endpoint_codebooks; - p.m_validate = m_params.m_validate; + p.m_validate = m_params.m_validate_etc1s; p.m_pJob_pool = m_params.m_pJob_pool; p.m_pGlobal_codebooks = m_params.m_pGlobal_codebooks; - - if ((m_params.m_global_sel_pal) || (m_auto_global_sel_pal)) - { - p.m_pGlobal_sel_codebook = m_params.m_pSel_codebook; - p.m_num_global_sel_codebook_pal_bits = m_params.m_global_pal_bits; - p.m_num_global_sel_codebook_mod_bits = m_params.m_global_mod_bits; - p.m_use_hybrid_selector_codebooks = !m_params.m_no_hybrid_sel_cb; - p.m_hybrid_codebook_quality_thresh = m_params.m_hybrid_sel_cb_quality_thresh; - } + + // Don't keep trying to use OpenCL if it ever fails. + p.m_pOpenCL_context = !m_opencl_failed ? m_pOpenCL_context : nullptr; if (!m_frontend.init(p)) { error_printf("basisu_frontend::init() failed!\n"); return false; } - + m_frontend.compress(); + if (m_frontend.get_opencl_failed()) + m_opencl_failed = true; + if (m_params.m_debug_images) { for (uint32_t i = 0; i < m_slice_descs.size(); i++) @@ -1184,6 +1209,9 @@ namespace basisu bool basis_compressor::extract_frontend_texture_data() { + if (!m_params.m_compute_stats) + return true; + debug_printf("basis_compressor::extract_frontend_texture_data\n"); m_frontend_output_textures.resize(m_slice_descs.size()); @@ -1242,13 +1270,10 @@ namespace basisu if (!m_params.m_no_selector_rdo) backend_params.m_selector_rdo_quality_thresh = m_params.m_selector_rdo_thresh; - backend_params.m_use_global_sel_codebook = (m_frontend.get_params().m_pGlobal_sel_codebook != NULL); - backend_params.m_global_sel_codebook_pal_bits = m_frontend.get_params().m_num_global_sel_codebook_pal_bits; - backend_params.m_global_sel_codebook_mod_bits = m_frontend.get_params().m_num_global_sel_codebook_mod_bits; - backend_params.m_use_hybrid_sel_codebooks = m_frontend.get_params().m_use_hybrid_selector_codebooks; backend_params.m_used_global_codebooks = m_frontend.get_params().m_pGlobal_codebooks != nullptr; + backend_params.m_validate = m_params.m_validate_output_data; - m_backend.init(&m_frontend, backend_params, m_slice_descs, m_params.m_pSel_codebook); + m_backend.init(&m_frontend, backend_params, m_slice_descs); uint32_t total_packed_bytes = m_backend.encode(); if (!total_packed_bytes) @@ -1278,140 +1303,143 @@ namespace basisu m_output_basis_file = comp_data; - interval_timer tm; - tm.start(); - - basist::basisu_transcoder_init(); - - debug_printf("basist::basisu_transcoder_init: Took %f ms\n", tm.get_elapsed_ms()); - - // Verify the compressed data by transcoding it to ASTC (or ETC1)/BC7 and validating the CRC's. - basist::basisu_transcoder decoder(m_params.m_pSel_codebook); - if (!decoder.validate_file_checksums(&comp_data[0], (uint32_t)comp_data.size(), true)) + uint32_t total_orig_pixels = 0, total_texels = 0, total_orig_texels = 0; + for (uint32_t i = 0; i < m_slice_descs.size(); i++) { - error_printf("decoder.validate_file_checksums() failed!\n"); - return false; + const basisu_backend_slice_desc& slice_desc = m_slice_descs[i]; + + total_orig_pixels += slice_desc.m_orig_width * slice_desc.m_orig_height; + total_texels += slice_desc.m_width * slice_desc.m_height; } - m_decoded_output_textures.resize(m_slice_descs.size()); - m_decoded_output_textures_unpacked.resize(m_slice_descs.size()); + m_basis_file_size = (uint32_t)comp_data.size(); + m_basis_bits_per_texel = total_orig_texels ? (comp_data.size() * 8.0f) / total_orig_texels : 0; - m_decoded_output_textures_bc7.resize(m_slice_descs.size()); - m_decoded_output_textures_unpacked_bc7.resize(m_slice_descs.size()); - - tm.start(); - if (m_params.m_pGlobal_codebooks) - { - decoder.set_global_codebooks(m_params.m_pGlobal_codebooks); - } + debug_printf("Total .basis output file size: %u, %3.3f bits/texel\n", comp_data.size(), comp_data.size() * 8.0f / total_orig_pixels); - if (!decoder.start_transcoding(&comp_data[0], (uint32_t)comp_data.size())) + if (m_params.m_validate_output_data) { - error_printf("decoder.start_transcoding() failed!\n"); - return false; - } + interval_timer tm; + tm.start(); - double start_transcoding_time = tm.get_elapsed_secs(); + basist::basisu_transcoder_init(); - debug_printf("basisu_compressor::start_transcoding() took %3.3fms\n", start_transcoding_time * 1000.0f); + debug_printf("basist::basisu_transcoder_init: Took %f ms\n", tm.get_elapsed_ms()); - uint32_t total_orig_pixels = 0; - uint32_t total_texels = 0; + // Verify the compressed data by transcoding it to ASTC (or ETC1)/BC7 and validating the CRC's. + basist::basisu_transcoder decoder; + if (!decoder.validate_file_checksums(&comp_data[0], (uint32_t)comp_data.size(), true)) + { + error_printf("decoder.validate_file_checksums() failed!\n"); + return false; + } - double total_time_etc1s_or_astc = 0; + m_decoded_output_textures.resize(m_slice_descs.size()); + m_decoded_output_textures_unpacked.resize(m_slice_descs.size()); - for (uint32_t i = 0; i < m_slice_descs.size(); i++) - { - gpu_image decoded_texture; - decoded_texture.init(m_params.m_uastc ? texture_format::cASTC4x4 : texture_format::cETC1, m_slice_descs[i].m_width, m_slice_descs[i].m_height); - - tm.start(); + m_decoded_output_textures_bc7.resize(m_slice_descs.size()); + m_decoded_output_textures_unpacked_bc7.resize(m_slice_descs.size()); - basist::block_format format = m_params.m_uastc ? basist::block_format::cASTC_4x4 : basist::block_format::cETC1; - uint32_t bytes_per_block = m_params.m_uastc ? 16 : 8; - - if (!decoder.transcode_slice(&comp_data[0], (uint32_t)comp_data.size(), i, - reinterpret_cast<etc_block *>(decoded_texture.get_ptr()), m_slice_descs[i].m_num_blocks_x * m_slice_descs[i].m_num_blocks_y, format, bytes_per_block)) + tm.start(); + if (m_params.m_pGlobal_codebooks) { - error_printf("Transcoding failed on slice %u!\n", i); - return false; + decoder.set_global_codebooks(m_params.m_pGlobal_codebooks); } - total_time_etc1s_or_astc += tm.get_elapsed_secs(); - - if (encoded_output.m_tex_format == basist::basis_tex_format::cETC1S) + if (!decoder.start_transcoding(&comp_data[0], (uint32_t)comp_data.size())) { - uint32_t image_crc16 = basist::crc16(decoded_texture.get_ptr(), decoded_texture.get_size_in_bytes(), 0); - if (image_crc16 != encoded_output.m_slice_image_crcs[i]) - { - error_printf("Decoded image data CRC check failed on slice %u!\n", i); - return false; - } - debug_printf("Decoded image data CRC check succeeded on slice %i\n", i); + error_printf("decoder.start_transcoding() failed!\n"); + return false; } - m_decoded_output_textures[i] = decoded_texture; + double start_transcoding_time = tm.get_elapsed_secs(); - total_orig_pixels += m_slice_descs[i].m_orig_width * m_slice_descs[i].m_orig_height; - total_texels += m_slice_descs[i].m_width * m_slice_descs[i].m_height; - } - - double total_time_bc7 = 0; + debug_printf("basisu_compressor::start_transcoding() took %3.3fms\n", start_transcoding_time * 1000.0f); + + double total_time_etc1s_or_astc = 0; - if (basist::basis_is_format_supported(basist::transcoder_texture_format::cTFBC7_RGBA, basist::basis_tex_format::cUASTC4x4) && - basist::basis_is_format_supported(basist::transcoder_texture_format::cTFBC7_RGBA, basist::basis_tex_format::cETC1S)) - { for (uint32_t i = 0; i < m_slice_descs.size(); i++) { gpu_image decoded_texture; - decoded_texture.init(texture_format::cBC7, m_slice_descs[i].m_width, m_slice_descs[i].m_height); + decoded_texture.init(m_params.m_uastc ? texture_format::cUASTC4x4 : texture_format::cETC1, m_slice_descs[i].m_width, m_slice_descs[i].m_height); tm.start(); + basist::block_format format = m_params.m_uastc ? basist::block_format::cUASTC_4x4 : basist::block_format::cETC1; + uint32_t bytes_per_block = m_params.m_uastc ? 16 : 8; + if (!decoder.transcode_slice(&comp_data[0], (uint32_t)comp_data.size(), i, - reinterpret_cast<etc_block*>(decoded_texture.get_ptr()), m_slice_descs[i].m_num_blocks_x * m_slice_descs[i].m_num_blocks_y, basist::block_format::cBC7, 16)) + reinterpret_cast<etc_block*>(decoded_texture.get_ptr()), m_slice_descs[i].m_num_blocks_x * m_slice_descs[i].m_num_blocks_y, format, bytes_per_block)) { - error_printf("Transcoding failed to BC7 on slice %u!\n", i); + error_printf("Transcoding failed on slice %u!\n", i); return false; } - total_time_bc7 += tm.get_elapsed_secs(); + total_time_etc1s_or_astc += tm.get_elapsed_secs(); + + if (encoded_output.m_tex_format == basist::basis_tex_format::cETC1S) + { + uint32_t image_crc16 = basist::crc16(decoded_texture.get_ptr(), decoded_texture.get_size_in_bytes(), 0); + if (image_crc16 != encoded_output.m_slice_image_crcs[i]) + { + error_printf("Decoded image data CRC check failed on slice %u!\n", i); + return false; + } + debug_printf("Decoded image data CRC check succeeded on slice %i\n", i); + } - m_decoded_output_textures_bc7[i] = decoded_texture; + m_decoded_output_textures[i] = decoded_texture; } - } - for (uint32_t i = 0; i < m_slice_descs.size(); i++) - { - m_decoded_output_textures[i].unpack(m_decoded_output_textures_unpacked[i]); + double total_time_bc7 = 0; - if (m_decoded_output_textures_bc7[i].get_pixel_width()) - m_decoded_output_textures_bc7[i].unpack(m_decoded_output_textures_unpacked_bc7[i]); - } + if (basist::basis_is_format_supported(basist::transcoder_texture_format::cTFBC7_RGBA, basist::basis_tex_format::cUASTC4x4) && + basist::basis_is_format_supported(basist::transcoder_texture_format::cTFBC7_RGBA, basist::basis_tex_format::cETC1S)) + { + for (uint32_t i = 0; i < m_slice_descs.size(); i++) + { + gpu_image decoded_texture; + decoded_texture.init(texture_format::cBC7, m_slice_descs[i].m_width, m_slice_descs[i].m_height); - debug_printf("Transcoded to %s in %3.3fms, %f texels/sec\n", m_params.m_uastc ? "ASTC" : "ETC1", total_time_etc1s_or_astc * 1000.0f, total_orig_pixels / total_time_etc1s_or_astc); + tm.start(); - if (total_time_bc7 != 0) - debug_printf("Transcoded to BC7 in %3.3fms, %f texels/sec\n", total_time_bc7 * 1000.0f, total_orig_pixels / total_time_bc7); + if (!decoder.transcode_slice(&comp_data[0], (uint32_t)comp_data.size(), i, + reinterpret_cast<etc_block*>(decoded_texture.get_ptr()), m_slice_descs[i].m_num_blocks_x * m_slice_descs[i].m_num_blocks_y, basist::block_format::cBC7, 16)) + { + error_printf("Transcoding failed to BC7 on slice %u!\n", i); + return false; + } - debug_printf("Total .basis output file size: %u, %3.3f bits/texel\n", comp_data.size(), comp_data.size() * 8.0f / total_orig_pixels); - - uint32_t total_orig_texels = 0; - for (uint32_t slice_index = 0; slice_index < m_slice_descs.size(); slice_index++) - { - const basisu_backend_slice_desc &slice_desc = m_slice_descs[slice_index]; + total_time_bc7 += tm.get_elapsed_secs(); - total_orig_texels += slice_desc.m_orig_width * slice_desc.m_orig_height; + m_decoded_output_textures_bc7[i] = decoded_texture; + } + } - const uint32_t total_blocks = slice_desc.m_num_blocks_x * slice_desc.m_num_blocks_y; - BASISU_NOTE_UNUSED(total_blocks); + for (uint32_t i = 0; i < m_slice_descs.size(); i++) + { + m_decoded_output_textures[i].unpack(m_decoded_output_textures_unpacked[i]); - assert(m_decoded_output_textures[slice_index].get_total_blocks() == total_blocks); - } + if (m_decoded_output_textures_bc7[i].get_pixel_width()) + m_decoded_output_textures_bc7[i].unpack(m_decoded_output_textures_unpacked_bc7[i]); + } - m_basis_file_size = (uint32_t)comp_data.size(); - m_basis_bits_per_texel = (comp_data.size() * 8.0f) / total_orig_texels; + debug_printf("Transcoded to %s in %3.3fms, %f texels/sec\n", m_params.m_uastc ? "ASTC" : "ETC1", total_time_etc1s_or_astc * 1000.0f, total_orig_pixels / total_time_etc1s_or_astc); + + if (total_time_bc7 != 0) + debug_printf("Transcoded to BC7 in %3.3fms, %f texels/sec\n", total_time_bc7 * 1000.0f, total_orig_pixels / total_time_bc7); + for (uint32_t slice_index = 0; slice_index < m_slice_descs.size(); slice_index++) + { + const basisu_backend_slice_desc& slice_desc = m_slice_descs[slice_index]; + + const uint32_t total_blocks = slice_desc.m_num_blocks_x * slice_desc.m_num_blocks_y; + BASISU_NOTE_UNUSED(total_blocks); + + assert(m_decoded_output_textures[slice_index].get_total_blocks() == total_blocks); + } + } // if (m_params.m_validate_output_data) + return true; } @@ -1465,175 +1493,171 @@ namespace basisu m_stats.resize(m_slice_descs.size()); - uint32_t total_orig_texels = 0; - - for (uint32_t slice_index = 0; slice_index < m_slice_descs.size(); slice_index++) + if (m_params.m_validate_output_data) { - const basisu_backend_slice_desc &slice_desc = m_slice_descs[slice_index]; - - total_orig_texels += slice_desc.m_orig_width * slice_desc.m_orig_height; - - if (m_params.m_compute_stats) + for (uint32_t slice_index = 0; slice_index < m_slice_descs.size(); slice_index++) { - printf("Slice: %u\n", slice_index); + const basisu_backend_slice_desc& slice_desc = m_slice_descs[slice_index]; - image_stats &s = m_stats[slice_index]; + if (m_params.m_compute_stats) + { + printf("Slice: %u\n", slice_index); - // TODO: We used to output SSIM (during heavy encoder development), but this slowed down compression too much. We'll be adding it back. + image_stats& s = m_stats[slice_index]; - image_metrics em; - - // ---- .basis stats - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 0, 3); - em.print(".basis RGB Avg: "); - s.m_basis_rgb_avg_psnr = em.m_psnr; + // TODO: We used to output SSIM (during heavy encoder development), but this slowed down compression too much. We'll be adding it back. - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 0, 4); - em.print(".basis RGBA Avg: "); - s.m_basis_rgba_avg_psnr = em.m_psnr; + image_metrics em; - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 0, 1); - em.print(".basis R Avg: "); - - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 1, 1); - em.print(".basis G Avg: "); - - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 2, 1); - em.print(".basis B Avg: "); + // ---- .basis stats + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 0, 3); + em.print(".basis RGB Avg: "); + s.m_basis_rgb_avg_psnr = em.m_psnr; - if (m_params.m_uastc) - { - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 3, 1); - em.print(".basis A Avg: "); + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 0, 4); + em.print(".basis RGBA Avg: "); + s.m_basis_rgba_avg_psnr = em.m_psnr; - s.m_basis_a_avg_psnr = em.m_psnr; - } + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 0, 1); + em.print(".basis R Avg: "); - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 0, 0); - em.print(".basis 709 Luma: "); - s.m_basis_luma_709_psnr = static_cast<float>(em.m_psnr); - s.m_basis_luma_709_ssim = static_cast<float>(em.m_ssim); + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 1, 1); + em.print(".basis G Avg: "); - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 0, 0, true, true); - em.print(".basis 601 Luma: "); - s.m_basis_luma_601_psnr = static_cast<float>(em.m_psnr); - - if (m_slice_descs.size() == 1) - { - const uint32_t output_size = comp_size ? (uint32_t)comp_size : (uint32_t)comp_data.size(); - debug_printf(".basis RGB PSNR per bit/texel*10000: %3.3f\n", 10000.0f * s.m_basis_rgb_avg_psnr / ((output_size * 8.0f) / (slice_desc.m_orig_width * slice_desc.m_orig_height))); - debug_printf(".basis Luma 709 PSNR per bit/texel*10000: %3.3f\n", 10000.0f * s.m_basis_luma_709_psnr / ((output_size * 8.0f) / (slice_desc.m_orig_width * slice_desc.m_orig_height))); - } + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 2, 1); + em.print(".basis B Avg: "); - if (m_decoded_output_textures_unpacked_bc7[slice_index].get_width()) - { - // ---- BC7 stats - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 0, 3); - em.print("BC7 RGB Avg: "); - s.m_bc7_rgb_avg_psnr = em.m_psnr; + if (m_params.m_uastc) + { + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 3, 1); + em.print(".basis A Avg: "); - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 0, 4); - em.print("BC7 RGBA Avg: "); - s.m_bc7_rgba_avg_psnr = em.m_psnr; + s.m_basis_a_avg_psnr = em.m_psnr; + } - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 0, 1); - em.print("BC7 R Avg: "); + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 0, 0); + em.print(".basis 709 Luma: "); + s.m_basis_luma_709_psnr = static_cast<float>(em.m_psnr); + s.m_basis_luma_709_ssim = static_cast<float>(em.m_ssim); - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 1, 1); - em.print("BC7 G Avg: "); + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked[slice_index], 0, 0, true, true); + em.print(".basis 601 Luma: "); + s.m_basis_luma_601_psnr = static_cast<float>(em.m_psnr); - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 2, 1); - em.print("BC7 B Avg: "); + if (m_slice_descs.size() == 1) + { + const uint32_t output_size = comp_size ? (uint32_t)comp_size : (uint32_t)comp_data.size(); + debug_printf(".basis RGB PSNR per bit/texel*10000: %3.3f\n", 10000.0f * s.m_basis_rgb_avg_psnr / ((output_size * 8.0f) / (slice_desc.m_orig_width * slice_desc.m_orig_height))); + debug_printf(".basis Luma 709 PSNR per bit/texel*10000: %3.3f\n", 10000.0f * s.m_basis_luma_709_psnr / ((output_size * 8.0f) / (slice_desc.m_orig_width * slice_desc.m_orig_height))); + } - if (m_params.m_uastc) + if (m_decoded_output_textures_unpacked_bc7[slice_index].get_width()) { - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 3, 1); - em.print("BC7 A Avg: "); + // ---- BC7 stats + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 0, 3); + em.print("BC7 RGB Avg: "); + s.m_bc7_rgb_avg_psnr = em.m_psnr; - s.m_bc7_a_avg_psnr = em.m_psnr; - } + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 0, 4); + em.print("BC7 RGBA Avg: "); + s.m_bc7_rgba_avg_psnr = em.m_psnr; - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 0, 0); - em.print("BC7 709 Luma: "); - s.m_bc7_luma_709_psnr = static_cast<float>(em.m_psnr); - s.m_bc7_luma_709_ssim = static_cast<float>(em.m_ssim); + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 0, 1); + em.print("BC7 R Avg: "); - em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 0, 0, true, true); - em.print("BC7 601 Luma: "); - s.m_bc7_luma_601_psnr = static_cast<float>(em.m_psnr); - } + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 1, 1); + em.print("BC7 G Avg: "); - if (!m_params.m_uastc) - { - // ---- Nearly best possible ETC1S stats - em.calc(m_slice_images[slice_index], m_best_etc1s_images_unpacked[slice_index], 0, 0); - em.print("Unquantized ETC1S 709 Luma: "); + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 2, 1); + em.print("BC7 B Avg: "); - s.m_best_etc1s_luma_709_psnr = static_cast<float>(em.m_psnr); - s.m_best_etc1s_luma_709_ssim = static_cast<float>(em.m_ssim); + if (m_params.m_uastc) + { + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 3, 1); + em.print("BC7 A Avg: "); - em.calc(m_slice_images[slice_index], m_best_etc1s_images_unpacked[slice_index], 0, 0, true, true); - em.print("Unquantized ETC1S 601 Luma: "); + s.m_bc7_a_avg_psnr = em.m_psnr; + } - s.m_best_etc1s_luma_601_psnr = static_cast<float>(em.m_psnr); + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 0, 0); + em.print("BC7 709 Luma: "); + s.m_bc7_luma_709_psnr = static_cast<float>(em.m_psnr); + s.m_bc7_luma_709_ssim = static_cast<float>(em.m_ssim); - em.calc(m_slice_images[slice_index], m_best_etc1s_images_unpacked[slice_index], 0, 3); - em.print("Unquantized ETC1S RGB Avg: "); + em.calc(m_slice_images[slice_index], m_decoded_output_textures_unpacked_bc7[slice_index], 0, 0, true, true); + em.print("BC7 601 Luma: "); + s.m_bc7_luma_601_psnr = static_cast<float>(em.m_psnr); + } - s.m_best_etc1s_rgb_avg_psnr = static_cast<float>(em.m_psnr); + if (!m_params.m_uastc) + { + // ---- Nearly best possible ETC1S stats + em.calc(m_slice_images[slice_index], m_best_etc1s_images_unpacked[slice_index], 0, 3); + em.print("Unquantized ETC1S RGB Avg: "); + s.m_best_etc1s_rgb_avg_psnr = static_cast<float>(em.m_psnr); + + em.calc(m_slice_images[slice_index], m_best_etc1s_images_unpacked[slice_index], 0, 0); + em.print("Unquantized ETC1S 709 Luma: "); + s.m_best_etc1s_luma_709_psnr = static_cast<float>(em.m_psnr); + s.m_best_etc1s_luma_709_ssim = static_cast<float>(em.m_ssim); + + em.calc(m_slice_images[slice_index], m_best_etc1s_images_unpacked[slice_index], 0, 0, true, true); + em.print("Unquantized ETC1S 601 Luma: "); + s.m_best_etc1s_luma_601_psnr = static_cast<float>(em.m_psnr); + } } - } - - std::string out_basename; - if (m_params.m_out_filename.size()) - string_get_filename(m_params.m_out_filename.c_str(), out_basename); - else if (m_params.m_source_filenames.size()) - string_get_filename(m_params.m_source_filenames[slice_desc.m_source_file_index].c_str(), out_basename); - string_remove_extension(out_basename); - out_basename = "basis_debug_" + out_basename + string_format("_slice_%u", slice_index); + std::string out_basename; + if (m_params.m_out_filename.size()) + string_get_filename(m_params.m_out_filename.c_str(), out_basename); + else if (m_params.m_source_filenames.size()) + string_get_filename(m_params.m_source_filenames[slice_desc.m_source_file_index].c_str(), out_basename); - if ((!m_params.m_uastc) && (m_frontend.get_params().m_debug_images)) - { - // Write "best" ETC1S debug images - if (!m_params.m_uastc) + string_remove_extension(out_basename); + out_basename = "basis_debug_" + out_basename + string_format("_slice_%u", slice_index); + + if ((!m_params.m_uastc) && (m_frontend.get_params().m_debug_images)) { - gpu_image best_etc1s_gpu_image(m_best_etc1s_images[slice_index]); - best_etc1s_gpu_image.override_dimensions(slice_desc.m_orig_width, slice_desc.m_orig_height); - write_compressed_texture_file((out_basename + "_best_etc1s.ktx").c_str(), best_etc1s_gpu_image); + // Write "best" ETC1S debug images + if (!m_params.m_uastc) + { + gpu_image best_etc1s_gpu_image(m_best_etc1s_images[slice_index]); + best_etc1s_gpu_image.override_dimensions(slice_desc.m_orig_width, slice_desc.m_orig_height); + write_compressed_texture_file((out_basename + "_best_etc1s.ktx").c_str(), best_etc1s_gpu_image); - image best_etc1s_unpacked; - best_etc1s_gpu_image.unpack(best_etc1s_unpacked); - save_png(out_basename + "_best_etc1s.png", best_etc1s_unpacked); + image best_etc1s_unpacked; + best_etc1s_gpu_image.unpack(best_etc1s_unpacked); + save_png(out_basename + "_best_etc1s.png", best_etc1s_unpacked); + } } - } - if (m_params.m_debug_images) - { - // Write decoded ETC1S/ASTC debug images + if (m_params.m_debug_images) { - gpu_image decoded_etc1s_or_astc(m_decoded_output_textures[slice_index]); - decoded_etc1s_or_astc.override_dimensions(slice_desc.m_orig_width, slice_desc.m_orig_height); - write_compressed_texture_file((out_basename + "_transcoded_etc1s_or_astc.ktx").c_str(), decoded_etc1s_or_astc); + // Write decoded ETC1S/ASTC debug images + { + gpu_image decoded_etc1s_or_astc(m_decoded_output_textures[slice_index]); + decoded_etc1s_or_astc.override_dimensions(slice_desc.m_orig_width, slice_desc.m_orig_height); + write_compressed_texture_file((out_basename + "_transcoded_etc1s_or_astc.ktx").c_str(), decoded_etc1s_or_astc); - image temp(m_decoded_output_textures_unpacked[slice_index]); - temp.crop(slice_desc.m_orig_width, slice_desc.m_orig_height); - save_png(out_basename + "_transcoded_etc1s_or_astc.png", temp); - } + image temp(m_decoded_output_textures_unpacked[slice_index]); + temp.crop(slice_desc.m_orig_width, slice_desc.m_orig_height); + save_png(out_basename + "_transcoded_etc1s_or_astc.png", temp); + } - // Write decoded BC7 debug images - if (m_decoded_output_textures_bc7[slice_index].get_pixel_width()) - { - gpu_image decoded_bc7(m_decoded_output_textures_bc7[slice_index]); - decoded_bc7.override_dimensions(slice_desc.m_orig_width, slice_desc.m_orig_height); - write_compressed_texture_file((out_basename + "_transcoded_bc7.ktx").c_str(), decoded_bc7); + // Write decoded BC7 debug images + if (m_decoded_output_textures_bc7[slice_index].get_pixel_width()) + { + gpu_image decoded_bc7(m_decoded_output_textures_bc7[slice_index]); + decoded_bc7.override_dimensions(slice_desc.m_orig_width, slice_desc.m_orig_height); + write_compressed_texture_file((out_basename + "_transcoded_bc7.ktx").c_str(), decoded_bc7); - image temp(m_decoded_output_textures_unpacked_bc7[slice_index]); - temp.crop(slice_desc.m_orig_width, slice_desc.m_orig_height); - save_png(out_basename + "_transcoded_bc7.png", temp); + image temp(m_decoded_output_textures_unpacked_bc7[slice_index]); + temp.crop(slice_desc.m_orig_width, slice_desc.m_orig_height); + save_png(out_basename + "_transcoded_bc7.png", temp); + } } } - } + } // if (m_params.m_validate_output_data) return true; } @@ -2116,4 +2140,252 @@ namespace basisu return true; } + bool basis_parallel_compress( + uint32_t total_threads, + const basisu::vector<basis_compressor_params>& params_vec, + basisu::vector< parallel_results >& results_vec) + { + assert(g_library_initialized); + if (!g_library_initialized) + { + error_printf("basis_parallel_compress: basisu_encoder_init() MUST be called before using any encoder functionality!\n"); + return false; + } + + assert(total_threads >= 1); + total_threads = basisu::maximum<uint32_t>(total_threads, 1); + + job_pool jpool(total_threads); + + results_vec.resize(0); + results_vec.resize(params_vec.size()); + + std::atomic<bool> result; + result = true; + + std::atomic<bool> opencl_failed; + opencl_failed = false; + + for (uint32_t pindex = 0; pindex < params_vec.size(); pindex++) + { + jpool.add_job([pindex, ¶ms_vec, &results_vec, &result, &opencl_failed] { + + basis_compressor_params params = params_vec[pindex]; + parallel_results& results = results_vec[pindex]; + + interval_timer tm; + tm.start(); + + basis_compressor c; + + // Dummy job pool + job_pool task_jpool(1); + params.m_pJob_pool = &task_jpool; + // TODO: Remove this flag entirely + params.m_multithreading = true; + + // Stop using OpenCL if a failure ever occurs. + if (opencl_failed) + params.m_use_opencl = false; + + bool status = c.init(params); + + if (c.get_opencl_failed()) + opencl_failed = true; + + if (status) + { + basis_compressor::error_code ec = c.process(); + + if (c.get_opencl_failed()) + opencl_failed = true; + + results.m_error_code = ec; + + if (ec == basis_compressor::cECSuccess) + { + results.m_basis_file = c.get_output_basis_file(); + results.m_ktx2_file = c.get_output_ktx2_file(); + results.m_stats = c.get_stats(); + results.m_basis_bits_per_texel = c.get_basis_bits_per_texel(); + results.m_any_source_image_has_alpha = c.get_any_source_image_has_alpha(); + } + else + { + result = false; + } + } + else + { + results.m_error_code = basis_compressor::cECFailedInitializing; + + result = false; + } + + results.m_total_time = tm.get_elapsed_secs(); + } ); + + } // pindex + + jpool.wait_for_all(); + + if (opencl_failed) + error_printf("An OpenCL error occured sometime during compression. The compressor fell back to CPU processing after the failure.\n"); + + return result; + } + + void* basis_compress( + const basisu::vector<image>& source_images, + uint32_t flags_and_quality, float uastc_rdo_quality, + size_t* pSize, + image_stats* pStats) + { + // Check input parameters + if ((!source_images.size()) || (!pSize)) + { + error_printf("basis_compress: Invalid parameter\n"); + assert(0); + return nullptr; + } + + *pSize = 0; + + // Initialize a job pool + uint32_t num_threads = 1; + if (flags_and_quality & cFlagThreaded) + num_threads = basisu::maximum<uint32_t>(1, std::thread::hardware_concurrency()); + + job_pool jp(num_threads); + + // Initialize the compressor parameter struct + basis_compressor_params comp_params; + comp_params.m_pJob_pool = &jp; + + comp_params.m_y_flip = (flags_and_quality & cFlagYFlip) != 0; + comp_params.m_debug = (flags_and_quality & cFlagDebug) != 0; + + // Copy the largest mipmap level + comp_params.m_source_images.resize(1); + comp_params.m_source_images[0] = source_images[0]; + + // Copy the smaller mipmap levels, if any + if (source_images.size() > 1) + { + comp_params.m_source_mipmap_images.resize(1); + comp_params.m_source_mipmap_images[0].resize(source_images.size() - 1); + + for (uint32_t i = 1; i < source_images.size(); i++) + comp_params.m_source_mipmap_images[0][i - 1] = source_images[i]; + } + + comp_params.m_multithreading = (flags_and_quality & cFlagThreaded) != 0; + comp_params.m_use_opencl = (flags_and_quality & cFlagUseOpenCL) != 0; + + comp_params.m_write_output_basis_files = false; + + comp_params.m_perceptual = (flags_and_quality & cFlagSRGB) != 0; + comp_params.m_mip_srgb = comp_params.m_perceptual; + comp_params.m_mip_gen = (flags_and_quality & (cFlagGenMipsWrap | cFlagGenMipsClamp)) != 0; + comp_params.m_mip_wrapping = (flags_and_quality & cFlagGenMipsWrap) != 0; + + comp_params.m_uastc = (flags_and_quality & cFlagUASTC) != 0; + if (comp_params.m_uastc) + { + comp_params.m_pack_uastc_flags = flags_and_quality & cPackUASTCLevelMask; + comp_params.m_rdo_uastc = (flags_and_quality & cFlagUASTCRDO) != 0; + comp_params.m_rdo_uastc_quality_scalar = uastc_rdo_quality; + } + else + comp_params.m_quality_level = basisu::maximum<uint32_t>(1, flags_and_quality & 255); + + comp_params.m_create_ktx2_file = (flags_and_quality & cFlagKTX2) != 0; + + if (comp_params.m_create_ktx2_file) + { + // Set KTX2 specific parameters. + if ((flags_and_quality & cFlagKTX2UASTCSuperCompression) && (comp_params.m_uastc)) + comp_params.m_ktx2_uastc_supercompression = basist::KTX2_SS_ZSTANDARD; + + comp_params.m_ktx2_srgb_transfer_func = comp_params.m_perceptual; + } + + comp_params.m_compute_stats = (pStats != nullptr); + + // Create the compressor, initialize it, and process the input + basis_compressor comp; + if (!comp.init(comp_params)) + { + error_printf("basis_compress: basis_compressor::init() failed!\n"); + return nullptr; + } + + basis_compressor::error_code ec = comp.process(); + + if (ec != basis_compressor::cECSuccess) + { + error_printf("basis_compress: basis_compressor::process() failed with error code %u\n", (uint32_t)ec); + return nullptr; + } + + // Get the output file data and return it to the caller + void* pFile_data = nullptr; + const uint8_vec* pFile_data_vec = comp_params.m_create_ktx2_file ? &comp.get_output_ktx2_file() : &comp.get_output_basis_file(); + + pFile_data = malloc(pFile_data_vec->size()); + if (!pFile_data) + { + error_printf("basis_compress: Out of memory\n"); + return nullptr; + } + memcpy(pFile_data, pFile_data_vec->get_ptr(), pFile_data_vec->size()); + + *pSize = pFile_data_vec->size(); + + if ((pStats) && (comp.get_stats().size())) + { + *pStats = comp.get_stats()[0]; + } + + return pFile_data; + } + + void* basis_compress( + const uint8_t* pImageRGBA, uint32_t width, uint32_t height, uint32_t pitch_in_pixels, + uint32_t flags_and_quality, float uastc_rdo_quality, + size_t* pSize, + image_stats* pStats) + { + if (!pitch_in_pixels) + pitch_in_pixels = width; + + if ((!pImageRGBA) || (!width) || (!height) || (pitch_in_pixels < width) || (!pSize)) + { + error_printf("basis_compress: Invalid parameter\n"); + assert(0); + return nullptr; + } + + *pSize = 0; + + if ((width > BASISU_MAX_SUPPORTED_TEXTURE_DIMENSION) || (height > BASISU_MAX_SUPPORTED_TEXTURE_DIMENSION)) + { + error_printf("basis_compress: Image too large\n"); + return nullptr; + } + + // Copy the source image + basisu::vector<image> source_image(1); + source_image[0].crop(width, height, width, g_black_color, false); + for (uint32_t y = 0; y < height; y++) + memcpy(source_image[0].get_ptr() + y * width, (const color_rgba*)pImageRGBA + y * pitch_in_pixels, width * sizeof(color_rgba)); + + return basis_compress(source_image, flags_and_quality, uastc_rdo_quality, pSize, pStats); + } + + void basis_free_data(void* p) + { + free(p); + } + } // namespace basisu diff --git a/thirdparty/basis_universal/encoder/basisu_comp.h b/thirdparty/basis_universal/encoder/basisu_comp.h index 2c3af968f7..aa5ea6fec3 100644 --- a/thirdparty/basis_universal/encoder/basisu_comp.h +++ b/thirdparty/basis_universal/encoder/basisu_comp.h @@ -16,12 +16,11 @@ #include "basisu_frontend.h" #include "basisu_backend.h" #include "basisu_basis_file.h" -#include "../transcoder/basisu_global_selector_palette.h" #include "../transcoder/basisu_transcoder.h" #include "basisu_uastc_enc.h" -#define BASISU_LIB_VERSION 115 -#define BASISU_LIB_VERSION_STRING "1.15" +#define BASISU_LIB_VERSION 116 +#define BASISU_LIB_VERSION_STRING "1.16" #ifndef BASISD_SUPPORT_KTX2 #error BASISD_SUPPORT_KTX2 is undefined @@ -36,6 +35,9 @@ namespace basisu { + struct opencl_context; + typedef opencl_context* opencl_context_ptr; + const uint32_t BASISU_MAX_SUPPORTED_TEXTURE_DIMENSION = 16384; // Allow block's color distance to increase by 1.5 while searching for an alternative nearby endpoint. @@ -203,13 +205,9 @@ namespace basisu struct basis_compressor_params { basis_compressor_params() : - m_pSel_codebook(NULL), m_compression_level((int)BASISU_DEFAULT_COMPRESSION_LEVEL, 0, (int)BASISU_MAX_COMPRESSION_LEVEL), m_selector_rdo_thresh(BASISU_DEFAULT_SELECTOR_RDO_THRESH, 0.0f, 1e+10f), m_endpoint_rdo_thresh(BASISU_DEFAULT_ENDPOINT_RDO_THRESH, 0.0f, 1e+10f), - m_hybrid_sel_cb_quality_thresh(BASISU_DEFAULT_HYBRID_SEL_CB_QUALITY_THRESH, 0.0f, 1e+10f), - m_global_pal_bits(8, 0, ETC1_GLOBAL_SELECTOR_CODEBOOK_MAX_PAL_BITS), - m_global_mod_bits(8, 0, basist::etc1_global_palette_entry_modifier::cTotalBits), m_mip_scale(1.0f, .000125f, 4.0f), m_mip_smallest_dimension(1, 1, 16384), m_max_endpoint_clusters(512), @@ -234,9 +232,8 @@ namespace basisu void clear() { - m_pSel_codebook = NULL; - m_uastc.clear(); + m_use_opencl.clear(); m_status_output.clear(); m_source_filenames.clear(); @@ -249,11 +246,8 @@ namespace basisu m_y_flip.clear(); m_debug.clear(); - m_validate.clear(); + m_validate_etc1s.clear(); m_debug_images.clear(); - m_global_sel_pal.clear(); - m_auto_global_sel_pal.clear(); - m_no_hybrid_sel_cb.clear(); m_perceptual.clear(); m_no_selector_rdo.clear(); m_selector_rdo_thresh.clear(); @@ -269,9 +263,6 @@ namespace basisu m_swizzle[2] = 2; m_swizzle[3] = 3; m_renormalize.clear(); - m_hybrid_sel_cb_quality_thresh.clear(); - m_global_pal_bits.clear(); - m_global_mod_bits.clear(); m_disable_hierarchical_endpoint_codebooks.clear(); m_no_endpoint_rdo.clear(); @@ -319,15 +310,16 @@ namespace basisu m_ktx2_zstd_supercompression_level.clear(); m_ktx2_srgb_transfer_func.clear(); + m_validate_output_data.clear(); + m_pJob_pool = nullptr; } - - // Pointer to the global selector codebook, or nullptr to not use a global selector codebook - const basist::etc1_global_selector_codebook *m_pSel_codebook; - + // True to generate UASTC .basis file data, otherwise ETC1S. bool_param<false> m_uastc; + bool_param<false> m_use_opencl; + // If m_read_source_images is true, m_source_filenames (and optionally m_source_alpha_filenames) contains the filenames of PNG images to read. // Otherwise, the compressor processes the images in m_source_images. basisu::vector<std::string> m_source_filenames; @@ -353,20 +345,16 @@ namespace basisu // Output debug information during compression bool_param<false> m_debug; - bool_param<false> m_validate; + bool_param<false> m_validate_etc1s; // m_debug_images is pretty slow bool_param<false> m_debug_images; - // Compression level, from 0 to BASISU_MAX_COMPRESSION_LEVEL (higher is slower) + // ETC1S compression level, from 0 to BASISU_MAX_COMPRESSION_LEVEL (higher is slower). + // This parameter controls numerous internal encoding speed vs. compression efficiency/performance tradeoffs. + // Note this is NOT the same as the ETC1S quality level, and most users shouldn't change this. param<int> m_compression_level; - - bool_param<false> m_global_sel_pal; - bool_param<false> m_auto_global_sel_pal; - - // Frontend/backend codec parameters - bool_param<false> m_no_hybrid_sel_cb; - + // Use perceptual sRGB colorspace metrics instead of linear bool_param<true> m_perceptual; @@ -398,13 +386,10 @@ namespace basisu bool_param<false> m_renormalize; + // If true the front end will not use 2 level endpoint codebook searching, for slightly higher quality but much slower execution. + // Note some m_compression_level's disable this automatically. bool_param<false> m_disable_hierarchical_endpoint_codebooks; - - // Global/hybrid selector codebook parameters - param<float> m_hybrid_sel_cb_quality_thresh; - param<int> m_global_pal_bits; - param<int> m_global_mod_bits; - + // mipmap generation parameters bool_param<false> m_mip_gen; param<float> m_mip_scale; @@ -415,9 +400,9 @@ namespace basisu bool_param<true> m_mip_wrapping; bool_param<true> m_mip_fast; param<int> m_mip_smallest_dimension; - + // Codebook size (quality) control. - // If m_quality_level != -1, it controls the quality level. It ranges from [0,255] or [BASISU_QUALITY_MIN, BASISU_QUALITY_MAX]. + // If m_quality_level != -1, it controls the quality level. It ranges from [1,255] or [BASISU_QUALITY_MIN, BASISU_QUALITY_MAX]. // Otherwise m_max_endpoint_clusters/m_max_selector_clusters controls the codebook sizes directly. uint32_t m_max_endpoint_clusters; uint32_t m_max_selector_clusters; @@ -444,6 +429,7 @@ namespace basisu param<int> m_resample_width; param<int> m_resample_height; param<float> m_resample_factor; + const basist::basisu_lowlevel_etc1s_transcoder *m_pGlobal_codebooks; // KTX2 specific parameters. @@ -454,21 +440,27 @@ namespace basisu param<int> m_ktx2_zstd_supercompression_level; bool_param<false> m_ktx2_srgb_transfer_func; + bool_param<false> m_validate_output_data; + job_pool *m_pJob_pool; }; - + + // Important: basisu_encoder_init() MUST be called first before using this class. class basis_compressor { BASISU_NO_EQUALS_OR_COPY_CONSTRUCT(basis_compressor); public: basis_compressor(); + ~basis_compressor(); + // Note it *should* be possible to call init() multiple times with different inputs, but this scenario isn't well tested. Ideally, create 1 object, compress, then delete it. bool init(const basis_compressor_params ¶ms); enum error_code { cECSuccess = 0, + cECFailedInitializing, cECFailedReadingSourceImages, cECFailedValidating, cECFailedEncodeUASTC, @@ -495,9 +487,13 @@ namespace basisu double get_basis_bits_per_texel() const { return m_basis_bits_per_texel; } bool get_any_source_image_has_alpha() const { return m_any_source_image_has_alpha; } + + bool get_opencl_failed() const { return m_opencl_failed; } private: basis_compressor_params m_params; + + opencl_context_ptr m_pOpenCL_context; basisu::vector<image> m_slice_images; @@ -509,8 +505,7 @@ namespace basisu basisu_backend_slice_desc_vec m_slice_descs; uint32_t m_total_blocks; - bool m_auto_global_sel_pal; - + basisu_frontend m_frontend; pixel_block_vec m_source_blocks; @@ -536,6 +531,8 @@ namespace basisu bool m_any_source_image_has_alpha; + bool m_opencl_failed; + bool read_source_images(); bool extract_source_blocks(); bool process_frontend(); @@ -550,6 +547,98 @@ namespace basisu void get_dfd(uint8_vec& dfd, const basist::ktx2_header& hdr); bool create_ktx2_file(); }; + + // Alternative simple C-style wrapper API around the basis_compressor class. + // This doesn't expose every encoder feature, but it's enough to get going. + // Important: basisu_encoder_init() MUST be called first before calling these functions. + // + // Input parameters: + // source_images: Array of "image" objects, one per mipmap level, largest mipmap level first. + // OR + // pImageRGBA: pointer to a 32-bpp RGBx or RGBA raster image, R first in memory, A last. Top scanline first in memory. + // width/height/pitch_in_pixels: dimensions of pImageRGBA + // + // flags_and_quality: Combination of the above flags logically OR'd with the ETC1S or UASTC level, i.e. "cFlagSRGB | cFlagGenMipsClamp | cFlagThreaded | 128" or "cFlagSRGB | cFlagGenMipsClamp | cFlagUASTC | cFlagThreaded | cPackUASTCLevelDefault". + // In ETC1S mode, the lower 8-bits are the ETC1S quality level which ranges from [1,255] (higher=better quality/larger files) + // In UASTC mode, the lower 8-bits are the UASTC pack level (see cPackUASTCLevelFastest, etc.). Fastest/lowest quality is 0, so be sure to set it correctly. + // + // uastc_rdo_quality: Float UASTC RDO quality level (0=no change, higher values lower quality but increase compressibility, initially try .5-1.5) + // + // pSize: Returns the output data's compressed size in bytes + // + // Return value is the compressed .basis or .ktx2 file data, or nullptr on failure. Must call basis_free() to free it. + enum + { + cFlagUseOpenCL = 1 << 8, // use OpenCL if available + cFlagThreaded = 1 << 9, // use multiple threads for compression + cFlagDebug = 1 << 10, // enable debug output + + cFlagKTX2 = 1 << 11, // generate a KTX2 file + cFlagKTX2UASTCSuperCompression = 1 << 12, // use KTX2 Zstd supercompression on UASTC files + + cFlagSRGB = 1 << 13, // input texture is sRGB, use perceptual colorspace metrics, also use sRGB filtering during mipmap gen, and also sets KTX2 output transfer func to sRGB + cFlagGenMipsClamp = 1 << 14, // generate mipmaps with clamp addressing + cFlagGenMipsWrap = 1 << 15, // generate mipmaps with wrap addressing + + cFlagYFlip = 1 << 16, // flip source image on Y axis before compression + + cFlagUASTC = 1 << 17, // use UASTC compression vs. ETC1S + cFlagUASTCRDO = 1 << 18 // use RDO postprocessing when generating UASTC files (must set uastc_rdo_quality to the quality scalar) + }; + // This function accepts an array of source images. + // If more than one image is provided, it's assumed the images form a mipmap pyramid and automatic mipmap generation is disabled. + void* basis_compress( + const basisu::vector<image> &source_images, + uint32_t flags_and_quality, float uastc_rdo_quality, + size_t* pSize, + image_stats* pStats = nullptr); + + // This function only accepts a single source image. + void* basis_compress( + const uint8_t* pImageRGBA, uint32_t width, uint32_t height, uint32_t pitch_in_pixels, + uint32_t flags_and_quality, float uastc_rdo_quality, + size_t* pSize, + image_stats* pStats = nullptr); + + // Frees the dynamically allocated file data returned by basis_compress(). + void basis_free_data(void* p); + + // Parallel compression API + struct parallel_results + { + double m_total_time; + basis_compressor::error_code m_error_code; + uint8_vec m_basis_file; + uint8_vec m_ktx2_file; + basisu::vector<image_stats> m_stats; + double m_basis_bits_per_texel; + bool m_any_source_image_has_alpha; + + parallel_results() + { + clear(); + } + + void clear() + { + m_total_time = 0.0f; + m_error_code = basis_compressor::cECFailedInitializing; + m_basis_file.clear(); + m_ktx2_file.clear(); + m_stats.clear(); + m_basis_bits_per_texel = 0.0f; + m_any_source_image_has_alpha = false; + } + }; + + // Compresses an array of input textures across total_threads threads using the basis_compressor class. + // Compressing multiple textures at a time is substantially more efficient than just compressing one at a time. + // total_threads must be >= 1. + bool basis_parallel_compress( + uint32_t total_threads, + const basisu::vector<basis_compressor_params> ¶ms_vec, + basisu::vector< parallel_results > &results_vec); + } // namespace basisu diff --git a/thirdparty/basis_universal/encoder/basisu_enc.cpp b/thirdparty/basis_universal/encoder/basisu_enc.cpp index daaf65badc..b427215ee3 100644 --- a/thirdparty/basis_universal/encoder/basisu_enc.cpp +++ b/thirdparty/basis_universal/encoder/basisu_enc.cpp @@ -13,16 +13,20 @@ // See the License for the specific language governing permissions and // limitations under the License. #include "basisu_enc.h" -#include "lodepng.h" #include "basisu_resampler.h" #include "basisu_resampler_filters.h" #include "basisu_etc.h" #include "../transcoder/basisu_transcoder.h" #include "basisu_bc7enc.h" -#include "apg_bmp.h" #include "jpgd.h" +#include "pvpngreader.h" +#include "basisu_opencl.h" #include <vector> +#define MINIZ_HEADER_FILE_ONLY +#define MINIZ_NO_ZLIB_COMPATIBLE_NAMES +#include "basisu_miniz.h" + #if defined(_WIN32) // For QueryPerformanceCounter/QueryPerformanceFrequency #define WIN32_LEAN_AND_MEAN @@ -158,34 +162,62 @@ namespace basisu { 0x6E, 0x3B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // U+007E (~) { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} // U+007F }; - + + bool g_library_initialized; + std::mutex g_encoder_init_mutex; + // Encoder library initialization (just call once at startup) - void basisu_encoder_init() + void basisu_encoder_init(bool use_opencl, bool opencl_force_serialization) { + std::lock_guard<std::mutex> lock(g_encoder_init_mutex); + + if (g_library_initialized) + return; + detect_sse41(); basist::basisu_transcoder_init(); pack_etc1_solid_color_init(); //uastc_init(); bc7enc_compress_block_init(); // must be after uastc_init() + + // Don't bother initializing the OpenCL module at all if it's been completely disabled. + if (use_opencl) + { + opencl_init(opencl_force_serialization); + } + + g_library_initialized = true; } - void error_printf(const char *pFmt, ...) + void basisu_encoder_deinit() { - char buf[2048]; + opencl_deinit(); + + g_library_initialized = false; + } + + void error_vprintf(const char* pFmt, va_list args) + { + char buf[8192]; - va_list args; - va_start(args, pFmt); #ifdef _WIN32 vsprintf_s(buf, sizeof(buf), pFmt, args); #else vsnprintf(buf, sizeof(buf), pFmt, args); #endif - va_end(args); fprintf(stderr, "ERROR: %s", buf); } + void error_printf(const char *pFmt, ...) + { + va_list args; + va_start(args, pFmt); + error_vprintf(pFmt, args); + va_end(args); + } + #if defined(_WIN32) inline void query_counter(timer_ticks* pTicks) { @@ -195,7 +227,7 @@ namespace basisu { QueryPerformanceFrequency(reinterpret_cast<LARGE_INTEGER*>(pTicks)); } -#elif defined(__APPLE__) || defined(__OpenBSD__) +#elif defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) #include <sys/time.h> inline void query_counter(timer_ticks* pTicks) { @@ -284,59 +316,6 @@ namespace basisu } const uint32_t MAX_32BIT_ALLOC_SIZE = 250000000; - - bool load_bmp(const char* pFilename, image& img) - { - int w = 0, h = 0; - unsigned int n_chans = 0; - unsigned char* pImage_data = apg_bmp_read(pFilename, &w, &h, &n_chans); - - if ((!pImage_data) || (!w) || (!h) || ((n_chans != 3) && (n_chans != 4))) - { - error_printf("Failed loading .BMP image \"%s\"!\n", pFilename); - - if (pImage_data) - apg_bmp_free(pImage_data); - - return false; - } - - if (sizeof(void *) == sizeof(uint32_t)) - { - if ((w * h * n_chans) > MAX_32BIT_ALLOC_SIZE) - { - error_printf("Image \"%s\" is too large (%ux%u) to process in a 32-bit build!\n", pFilename, w, h); - - if (pImage_data) - apg_bmp_free(pImage_data); - - return false; - } - } - - img.resize(w, h); - - const uint8_t *pSrc = pImage_data; - for (int y = 0; y < h; y++) - { - color_rgba *pDst = &img(0, y); - - for (int x = 0; x < w; x++) - { - pDst->r = pSrc[0]; - pDst->g = pSrc[1]; - pDst->b = pSrc[2]; - pDst->a = (n_chans == 3) ? 255 : pSrc[3]; - - pSrc += n_chans; - ++pDst; - } - } - - apg_bmp_free(pImage_data); - - return true; - } bool load_tga(const char* pFilename, image& img) { @@ -392,53 +371,35 @@ namespace basisu bool load_png(const uint8_t *pBuf, size_t buf_size, image &img, const char *pFilename) { + interval_timer tm; + tm.start(); + if (!buf_size) return false; - unsigned err = 0, w = 0, h = 0; - - if (sizeof(void*) == sizeof(uint32_t)) + uint32_t width = 0, height = 0, num_chans = 0; + void* pImage = pv_png::load_png(pBuf, buf_size, 4, width, height, num_chans); + if (!pBuf) { - // Inspect the image first on 32-bit builds, to see if the image would require too much memory. - lodepng::State state; - err = lodepng_inspect(&w, &h, &state, pBuf, buf_size); - if ((err != 0) || (!w) || (!h)) - return false; - - const uint32_t exepected_alloc_size = w * h * sizeof(uint32_t); - - // If the file is too large on 32-bit builds then just bail now, to prevent causing a memory exception. - if (exepected_alloc_size >= MAX_32BIT_ALLOC_SIZE) - { - error_printf("Image \"%s\" is too large (%ux%u) to process in a 32-bit build!\n", (pFilename != nullptr) ? pFilename : "<memory>", w, h); - return false; - } - - w = h = 0; - } - - std::vector<uint8_t> out; - err = lodepng::decode(out, w, h, pBuf, buf_size); - if ((err != 0) || (!w) || (!h)) - return false; - - if (out.size() != (w * h * 4)) + error_printf("pv_png::load_png failed while loading image \"%s\"\n", pFilename); return false; + } - img.resize(w, h); + img.grant_ownership(reinterpret_cast<color_rgba*>(pImage), width, height); - memcpy(img.get_ptr(), &out[0], out.size()); + //debug_printf("Total load_png() time: %3.3f secs\n", tm.get_elapsed_secs()); return true; } bool load_png(const char* pFilename, image& img) { - std::vector<uint8_t> buffer; - unsigned err = lodepng::load_file(buffer, std::string(pFilename)); - if (err) + uint8_vec buffer; + if (!read_file_to_vec(pFilename, buffer)) + { + error_printf("load_png: Failed reading file \"%s\"!\n", pFilename); return false; - + } return load_png(buffer.data(), buffer.size(), img, pFilename); } @@ -468,8 +429,6 @@ namespace basisu if (strcasecmp(pExt, "png") == 0) return load_png(pFilename, img); - if (strcasecmp(pExt, "bmp") == 0) - return load_bmp(pFilename, img); if (strcasecmp(pExt, "tga") == 0) return load_tga(pFilename, img); if ( (strcasecmp(pExt, "jpg") == 0) || (strcasecmp(pExt, "jfif") == 0) || (strcasecmp(pExt, "jpeg") == 0) ) @@ -482,61 +441,67 @@ namespace basisu { if (!img.get_total_pixels()) return false; - - const uint32_t MAX_PNG_IMAGE_DIM = 32768; - if ((img.get_width() > MAX_PNG_IMAGE_DIM) || (img.get_height() > MAX_PNG_IMAGE_DIM)) - return false; - - std::vector<uint8_t> out; - unsigned err = 0; + void* pPNG_data = nullptr; + size_t PNG_data_size = 0; + if (image_save_flags & cImageSaveGrayscale) { - uint8_vec g_pixels(img.get_width() * img.get_height()); - uint8_t *pDst = &g_pixels[0]; + uint8_vec g_pixels(img.get_total_pixels()); + uint8_t* pDst = &g_pixels[0]; for (uint32_t y = 0; y < img.get_height(); y++) for (uint32_t x = 0; x < img.get_width(); x++) *pDst++ = img(x, y)[grayscale_comp]; - err = lodepng::encode(out, (const uint8_t*)&g_pixels[0], img.get_width(), img.get_height(), LCT_GREY, 8); + pPNG_data = buminiz::tdefl_write_image_to_png_file_in_memory_ex(g_pixels.data(), img.get_width(), img.get_height(), 1, &PNG_data_size, 1, false); } else { - bool has_alpha = img.has_alpha(); - if ((!has_alpha) || ((image_save_flags & cImageSaveIgnoreAlpha) != 0)) + bool has_alpha = false; + + if ((image_save_flags & cImageSaveIgnoreAlpha) == 0) + has_alpha = img.has_alpha(); + + if (!has_alpha) { - const uint64_t total_bytes = (uint64_t)img.get_width() * 3U * (uint64_t)img.get_height(); - if (total_bytes > INT_MAX) - return false; - uint8_vec rgb_pixels(static_cast<size_t>(total_bytes)); - uint8_t *pDst = &rgb_pixels[0]; - + uint8_vec rgb_pixels(img.get_total_pixels() * 3); + uint8_t* pDst = &rgb_pixels[0]; + for (uint32_t y = 0; y < img.get_height(); y++) { + const color_rgba* pSrc = &img(0, y); for (uint32_t x = 0; x < img.get_width(); x++) { - const color_rgba& c = img(x, y); - pDst[0] = c.r; - pDst[1] = c.g; - pDst[2] = c.b; + pDst[0] = pSrc->r; + pDst[1] = pSrc->g; + pDst[2] = pSrc->b; + + pSrc++; pDst += 3; } } - err = lodepng::encode(out, (const uint8_t*)& rgb_pixels[0], img.get_width(), img.get_height(), LCT_RGB, 8); + pPNG_data = buminiz::tdefl_write_image_to_png_file_in_memory_ex(rgb_pixels.data(), img.get_width(), img.get_height(), 3, &PNG_data_size, 1, false); } else { - err = lodepng::encode(out, (const uint8_t*)img.get_ptr(), img.get_width(), img.get_height(), LCT_RGBA, 8); + pPNG_data = buminiz::tdefl_write_image_to_png_file_in_memory_ex(img.get_ptr(), img.get_width(), img.get_height(), 4, &PNG_data_size, 1, false); } } - err = lodepng::save_file(out, std::string(pFilename)); - if (err) + if (!pPNG_data) return false; - return true; + bool status = write_data_to_file(pFilename, pPNG_data, PNG_data_size); + if (!status) + { + error_printf("save_png: Failed writing to filename \"%s\"!\n", pFilename); + } + + free(pPNG_data); + + return status; } bool read_file_to_vec(const char* pFilename, uint8_vec& data) @@ -1620,7 +1585,8 @@ namespace basisu void job_pool::job_thread(uint32_t index) { - debug_printf("job_pool::job_thread: starting %u\n", index); + BASISU_NOTE_UNUSED(index); + //debug_printf("job_pool::job_thread: starting %u\n", index); while (true) { @@ -1656,7 +1622,7 @@ namespace basisu m_no_more_jobs.notify_all(); } - debug_printf("job_pool::job_thread: exiting\n"); + //debug_printf("job_pool::job_thread: exiting\n"); } // .TGA image loading @@ -1779,6 +1745,8 @@ namespace basisu return nullptr; } + //const uint32_t bytes_per_line = hdr.m_width * tga_bytes_per_pixel; + const uint8_t *pSrc = pBuf + sizeof(tga_header); uint32_t bytes_remaining = buf_size - sizeof(tga_header); diff --git a/thirdparty/basis_universal/encoder/basisu_enc.h b/thirdparty/basis_universal/encoder/basisu_enc.h index 0ce011452d..0efeaa461f 100644 --- a/thirdparty/basis_universal/encoder/basisu_enc.h +++ b/thirdparty/basis_universal/encoder/basisu_enc.h @@ -33,14 +33,23 @@ // If BASISU_USE_HIGH_PRECISION_COLOR_DISTANCE is 1, quality in perceptual mode will be slightly greater, but at a large increase in encoding CPU time. #define BASISU_USE_HIGH_PRECISION_COLOR_DISTANCE (0) +#if BASISU_SUPPORT_SSE +// Declared in basisu_kernels_imp.h, but we can't include that here otherwise it would lead to circular type errors. +extern void update_covar_matrix_16x16_sse41(uint32_t num_vecs, const void* pWeighted_vecs, const void* pOrigin, const uint32_t *pVec_indices, void* pMatrix16x16); +#endif + namespace basisu { extern uint8_t g_hamming_dist[256]; extern const uint8_t g_debug_font8x8_basic[127 - 32 + 1][8]; + // true if basisu_encoder_init() has been called and returned. + extern bool g_library_initialized; + // Encoder library initialization. // This function MUST be called before encoding anything! - void basisu_encoder_init(); + void basisu_encoder_init(bool use_opencl = false, bool opencl_force_serialization = false); + void basisu_encoder_deinit(); // basisu_kernels_sse.cpp - will be a no-op and g_cpu_supports_sse41 will always be false unless compiled with BASISU_SUPPORT_SSE=1 extern void detect_sse41(); @@ -51,8 +60,9 @@ namespace basisu const bool g_cpu_supports_sse41 = false; #endif + void error_vprintf(const char* pFmt, va_list args); void error_printf(const char *pFmt, ...); - + // Helpers inline uint8_t clamp255(int32_t i) @@ -170,18 +180,24 @@ namespace basisu class running_stat { public: - running_stat() : - m_n(0), - m_old_m(0), m_new_m(0), m_old_s(0), m_new_s(0) - { - } + running_stat() { clear(); } + void clear() { m_n = 0; + m_total = 0; + m_old_m = 0; + m_new_m = 0; + m_old_s = 0; + m_new_s = 0; + m_min = 0; + m_max = 0; } + void push(double x) { m_n++; + m_total += x; if (m_n == 1) { m_old_m = m_new_m = x; @@ -191,6 +207,7 @@ namespace basisu } else { + // See Knuth TAOCP vol 2, 3rd edition, page 232 m_new_m = m_old_m + (x - m_old_m) / m_n; m_new_s = m_old_s + (x - m_old_m) * (x - m_new_m); m_old_m = m_new_m; @@ -199,15 +216,23 @@ namespace basisu m_max = basisu::maximum(x, m_max); } } + uint32_t get_num() const { return m_n; } + + double get_total() const + { + return m_total; + } + double get_mean() const { return (m_n > 0) ? m_new_m : 0.0; } + // Returns sample variance double get_variance() const { return ((m_n > 1) ? m_new_s / (m_n - 1) : 0.0); @@ -230,7 +255,7 @@ namespace basisu private: uint32_t m_n; - double m_old_m, m_new_m, m_old_s, m_new_s, m_min, m_max; + double m_total, m_old_m, m_new_m, m_old_s, m_new_s, m_min, m_max; }; // Linear algebra @@ -401,6 +426,8 @@ namespace basisu typedef vec<3, float> vec3F; typedef vec<2, float> vec2F; typedef vec<1, float> vec1F; + + typedef vec<16, float> vec16F; template <uint32_t Rows, uint32_t Cols, typename T> class matrix @@ -504,6 +531,164 @@ namespace basisu [pKeys](uint32_t a, uint32_t b) { return pKeys[a] < pKeys[b]; } ); } + + // 1-4 byte direct Radix sort. + template <typename T> + T* radix_sort(uint32_t num_vals, T* pBuf0, T* pBuf1, uint32_t key_ofs, uint32_t key_size) + { + assert(key_ofs < sizeof(T)); + assert((key_size >= 1) && (key_size <= 4)); + + uint32_t hist[256 * 4]; + + memset(hist, 0, sizeof(hist[0]) * 256 * key_size); + +#define BASISU_GET_KEY(p) (*(uint32_t *)((uint8_t *)(p) + key_ofs)) + + if (key_size == 4) + { + T* p = pBuf0; + T* q = pBuf0 + num_vals; + for (; p != q; p++) + { + const uint32_t key = BASISU_GET_KEY(p); + + hist[key & 0xFF]++; + hist[256 + ((key >> 8) & 0xFF)]++; + hist[512 + ((key >> 16) & 0xFF)]++; + hist[768 + ((key >> 24) & 0xFF)]++; + } + } + else if (key_size == 3) + { + T* p = pBuf0; + T* q = pBuf0 + num_vals; + for (; p != q; p++) + { + const uint32_t key = BASISU_GET_KEY(p); + + hist[key & 0xFF]++; + hist[256 + ((key >> 8) & 0xFF)]++; + hist[512 + ((key >> 16) & 0xFF)]++; + } + } + else if (key_size == 2) + { + T* p = pBuf0; + T* q = pBuf0 + (num_vals >> 1) * 2; + + for (; p != q; p += 2) + { + const uint32_t key0 = BASISU_GET_KEY(p); + const uint32_t key1 = BASISU_GET_KEY(p + 1); + + hist[key0 & 0xFF]++; + hist[256 + ((key0 >> 8) & 0xFF)]++; + + hist[key1 & 0xFF]++; + hist[256 + ((key1 >> 8) & 0xFF)]++; + } + + if (num_vals & 1) + { + const uint32_t key = BASISU_GET_KEY(p); + + hist[key & 0xFF]++; + hist[256 + ((key >> 8) & 0xFF)]++; + } + } + else + { + assert(key_size == 1); + if (key_size != 1) + return NULL; + + T* p = pBuf0; + T* q = pBuf0 + (num_vals >> 1) * 2; + + for (; p != q; p += 2) + { + const uint32_t key0 = BASISU_GET_KEY(p); + const uint32_t key1 = BASISU_GET_KEY(p + 1); + + hist[key0 & 0xFF]++; + hist[key1 & 0xFF]++; + } + + if (num_vals & 1) + { + const uint32_t key = BASISU_GET_KEY(p); + hist[key & 0xFF]++; + } + } + + T* pCur = pBuf0; + T* pNew = pBuf1; + + for (uint32_t pass = 0; pass < key_size; pass++) + { + const uint32_t* pHist = &hist[pass << 8]; + + uint32_t offsets[256]; + + uint32_t cur_ofs = 0; + for (uint32_t i = 0; i < 256; i += 2) + { + offsets[i] = cur_ofs; + cur_ofs += pHist[i]; + + offsets[i + 1] = cur_ofs; + cur_ofs += pHist[i + 1]; + } + + const uint32_t pass_shift = pass << 3; + + T* p = pCur; + T* q = pCur + (num_vals >> 1) * 2; + + for (; p != q; p += 2) + { + uint32_t c0 = (BASISU_GET_KEY(p) >> pass_shift) & 0xFF; + uint32_t c1 = (BASISU_GET_KEY(p + 1) >> pass_shift) & 0xFF; + + if (c0 == c1) + { + uint32_t dst_offset0 = offsets[c0]; + + offsets[c0] = dst_offset0 + 2; + + pNew[dst_offset0] = p[0]; + pNew[dst_offset0 + 1] = p[1]; + } + else + { + uint32_t dst_offset0 = offsets[c0]++; + uint32_t dst_offset1 = offsets[c1]++; + + pNew[dst_offset0] = p[0]; + pNew[dst_offset1] = p[1]; + } + } + + if (num_vals & 1) + { + uint32_t c = (BASISU_GET_KEY(p) >> pass_shift) & 0xFF; + + uint32_t dst_offset = offsets[c]; + offsets[c] = dst_offset + 1; + + pNew[dst_offset] = *p; + } + + T* t = pCur; + pCur = pNew; + pNew = t; + } + + return pCur; + } + +#undef BASISU_GET_KEY // Very simple job pool with no dependencies. class job_pool @@ -805,17 +990,28 @@ namespace basisu int dg = e1.g - e2.g; int db = e1.b - e2.b; +#if 0 int delta_l = dr * 27 + dg * 92 + db * 9; int delta_cr = dr * 128 - delta_l; int delta_cb = db * 128 - delta_l; - + uint32_t id = ((uint32_t)(delta_l * delta_l) >> 7U) + ((((uint32_t)(delta_cr * delta_cr) >> 7U) * 26U) >> 7U) + ((((uint32_t)(delta_cb * delta_cb) >> 7U) * 3U) >> 7U); +#else + int64_t delta_l = dr * 27 + dg * 92 + db * 9; + int64_t delta_cr = dr * 128 - delta_l; + int64_t delta_cb = db * 128 - delta_l; + + uint32_t id = ((uint32_t)((delta_l * delta_l) >> 7U)) + + ((((uint32_t)((delta_cr * delta_cr) >> 7U)) * 26U) >> 7U) + + ((((uint32_t)((delta_cb * delta_cb) >> 7U)) * 3U) >> 7U); +#endif if (alpha) { int da = (e1.a - e2.a) << 7; + // This shouldn't overflow if da is 255 or -255: 29.99 bits after squaring. id += ((uint32_t)(da * da) >> 7U); } @@ -1258,7 +1454,7 @@ namespace basisu { codebook.resize(codebook.size() + 1); codebook.back() = cur.m_training_vecs; - + if (node_stack.empty()) break; @@ -1295,6 +1491,9 @@ namespace basisu uint32_t total_leaf_nodes = 1; + //interval_timer tm; + //tm.start(); + while ((var_heap.size()) && (total_leaf_nodes < max_size)) { const uint32_t node_index = var_heap.get_top_index(); @@ -1315,6 +1514,8 @@ namespace basisu } } + //debug_printf("tree_vector_quant::generate %u: %3.3f secs\n", TrainingVectorType::num_elements, tm.get_elapsed_secs()); + return true; } @@ -1443,17 +1644,32 @@ namespace basisu { const uint32_t N = TrainingVectorType::num_elements; - matrix<N, N, float> cmatrix(cZero); + matrix<N, N, float> cmatrix; - // Compute covariance matrix from weighted input vectors - for (uint32_t i = 0; i < node.m_training_vecs.size(); i++) + if ((N != 16) || (!g_cpu_supports_sse41)) { - const TrainingVectorType v(m_training_vecs[node.m_training_vecs[i]].first - node.m_origin); - const TrainingVectorType w(static_cast<float>(m_training_vecs[node.m_training_vecs[i]].second) * v); + cmatrix.set_zero(); + + // Compute covariance matrix from weighted input vectors + for (uint32_t i = 0; i < node.m_training_vecs.size(); i++) + { + const TrainingVectorType v(m_training_vecs[node.m_training_vecs[i]].first - node.m_origin); + const TrainingVectorType w(static_cast<float>(m_training_vecs[node.m_training_vecs[i]].second) * v); - for (uint32_t x = 0; x < N; x++) - for (uint32_t y = x; y < N; y++) - cmatrix[x][y] = cmatrix[x][y] + v[x] * w[y]; + for (uint32_t x = 0; x < N; x++) + for (uint32_t y = x; y < N; y++) + cmatrix[x][y] = cmatrix[x][y] + v[x] * w[y]; + } + } + else + { +#if BASISU_SUPPORT_SSE + // Specialize the case with 16x16 matrices, which are quite expensive without SIMD. + // This SSE function takes pointers to void types, so do some sanity checks. + assert(sizeof(TrainingVectorType) == sizeof(float) * 16); + assert(sizeof(training_vec_with_weight) == sizeof(std::pair<vec16F, uint64_t>)); + update_covar_matrix_16x16_sse41(node.m_training_vecs.size(), m_training_vecs.data(), &node.m_origin, node.m_training_vecs.data(), &cmatrix); +#endif } const float renorm_scale = 1.0f / node.m_weight; @@ -1632,16 +1848,19 @@ namespace basisu } } + // Node is unsplittable using the above algorithm - try something else to split it up. if ((!l_weight) || (!r_weight)) { l_children.resize(0); new_l_child.set(0.0f); l_ttsum = 0.0f; l_weight = 0; + r_children.resize(0); new_r_child.set(0.0f); r_ttsum = 0.0f; r_weight = 0; + TrainingVectorType firstVec; for (uint32_t i = 0; i < node.m_training_vecs.size(); i++) { @@ -1847,31 +2066,67 @@ namespace basisu uint32_t max_codebook_size, uint32_t max_parent_codebook_size, basisu::vector<uint_vec>& codebook, basisu::vector<uint_vec>& parent_codebook, - uint32_t max_threads, job_pool *pJob_pool) + uint32_t max_threads, job_pool *pJob_pool, + bool even_odd_input_pairs_equal) { typedef bit_hasher<typename Quantizer::training_vec_type> training_vec_bit_hasher; + typedef std::unordered_map < typename Quantizer::training_vec_type, weighted_block_group, training_vec_bit_hasher> group_hash; + //interval_timer tm; + //tm.start(); + group_hash unique_vecs; - weighted_block_group g; - g.m_indices.resize(1); + unique_vecs.reserve(20000); - for (uint32_t i = 0; i < q.get_training_vecs().size(); i++) + weighted_block_group g; + + if (even_odd_input_pairs_equal) { - g.m_total_weight = q.get_training_vecs()[i].second; - g.m_indices[0] = i; + g.m_indices.resize(2); - auto ins_res = unique_vecs.insert(std::make_pair(q.get_training_vecs()[i].first, g)); + assert(q.get_training_vecs().size() >= 2 && (q.get_training_vecs().size() & 1) == 0); - if (!ins_res.second) + for (uint32_t i = 0; i < q.get_training_vecs().size(); i += 2) { - (ins_res.first)->second.m_total_weight += g.m_total_weight; - (ins_res.first)->second.m_indices.push_back(i); + assert(q.get_training_vecs()[i].first == q.get_training_vecs()[i + 1].first); + + g.m_total_weight = q.get_training_vecs()[i].second + q.get_training_vecs()[i + 1].second; + g.m_indices[0] = i; + g.m_indices[1] = i + 1; + + auto ins_res = unique_vecs.insert(std::make_pair(q.get_training_vecs()[i].first, g)); + + if (!ins_res.second) + { + (ins_res.first)->second.m_total_weight += g.m_total_weight; + (ins_res.first)->second.m_indices.push_back(i); + (ins_res.first)->second.m_indices.push_back(i + 1); + } + } + } + else + { + g.m_indices.resize(1); + + for (uint32_t i = 0; i < q.get_training_vecs().size(); i++) + { + g.m_total_weight = q.get_training_vecs()[i].second; + g.m_indices[0] = i; + + auto ins_res = unique_vecs.insert(std::make_pair(q.get_training_vecs()[i].first, g)); + + if (!ins_res.second) + { + (ins_res.first)->second.m_total_weight += g.m_total_weight; + (ins_res.first)->second.m_indices.push_back(i); + } } } + //debug_printf("generate_hierarchical_codebook_threaded: %u training vectors, %u unique training vectors, %3.3f secs\n", q.get_total_training_vecs(), (uint32_t)unique_vecs.size(), tm.get_elapsed_secs()); debug_printf("generate_hierarchical_codebook_threaded: %u training vectors, %u unique training vectors\n", q.get_total_training_vecs(), (uint32_t)unique_vecs.size()); Quantizer group_quant; @@ -2491,7 +2746,27 @@ namespace basisu return *this; } - image &crop(uint32_t w, uint32_t h, uint32_t p = UINT32_MAX, const color_rgba &background = g_black_color) + // pPixels MUST have been allocated using malloc() (basisu::vector will eventually use free() on the pointer). + image& grant_ownership(color_rgba* pPixels, uint32_t w, uint32_t h, uint32_t p = UINT32_MAX) + { + if (p == UINT32_MAX) + p = w; + + clear(); + + if ((!p) || (!w) || (!h)) + return *this; + + m_pixels.grant_ownership(pPixels, p * h, p * h); + + m_width = w; + m_height = h; + m_pitch = p; + + return *this; + } + + image &crop(uint32_t w, uint32_t h, uint32_t p = UINT32_MAX, const color_rgba &background = g_black_color, bool init_image = true) { if (p == UINT32_MAX) p = w; @@ -2509,15 +2784,25 @@ namespace basisu cur_state.swap(m_pixels); m_pixels.resize(p * h); - - for (uint32_t y = 0; y < h; y++) + + if (init_image) { - for (uint32_t x = 0; x < w; x++) + if (m_width || m_height) { - if ((x < m_width) && (y < m_height)) - m_pixels[x + y * p] = cur_state[x + y * m_pitch]; - else - m_pixels[x + y * p] = background; + for (uint32_t y = 0; y < h; y++) + { + for (uint32_t x = 0; x < w; x++) + { + if ((x < m_width) && (y < m_height)) + m_pixels[x + y * p] = cur_state[x + y * m_pitch]; + else + m_pixels[x + y * p] = background; + } + } + } + else + { + m_pixels.set_all(background); } } @@ -2590,9 +2875,25 @@ namespace basisu const image &extract_block_clamped(color_rgba *pDst, uint32_t src_x, uint32_t src_y, uint32_t w, uint32_t h) const { - for (uint32_t y = 0; y < h; y++) - for (uint32_t x = 0; x < w; x++) - *pDst++ = get_clamped(src_x + x, src_y + y); + if (((src_x + w) > m_width) || ((src_y + h) > m_height)) + { + // Slower clamping case + for (uint32_t y = 0; y < h; y++) + for (uint32_t x = 0; x < w; x++) + *pDst++ = get_clamped(src_x + x, src_y + y); + } + else + { + const color_rgba* pSrc = &m_pixels[src_x + src_y * m_pitch]; + + for (uint32_t y = 0; y < h; y++) + { + memcpy(pDst, pSrc, w * sizeof(color_rgba)); + pSrc += m_pitch; + pDst += w; + } + } + return *this; } @@ -2947,21 +3248,18 @@ namespace basisu }; // Image saving/loading/resampling - + bool load_png(const uint8_t* pBuf, size_t buf_size, image& img, const char* pFilename = nullptr); bool load_png(const char* pFilename, image& img); inline bool load_png(const std::string &filename, image &img) { return load_png(filename.c_str(), img); } - bool load_bmp(const char* pFilename, image& img); - inline bool load_bmp(const std::string &filename, image &img) { return load_bmp(filename.c_str(), img); } - bool load_tga(const char* pFilename, image& img); inline bool load_tga(const std::string &filename, image &img) { return load_tga(filename.c_str(), img); } bool load_jpg(const char *pFilename, image& img); inline bool load_jpg(const std::string &filename, image &img) { return load_jpg(filename.c_str(), img); } - // Currently loads .BMP, .PNG, or .TGA. + // Currently loads .PNG, .TGA, or .JPG bool load_image(const char* pFilename, image& img); inline bool load_image(const std::string &filename, image &img) { return load_image(filename.c_str(), img); } @@ -3129,6 +3427,29 @@ namespace basisu } void fill_buffer_with_random_bytes(void *pBuf, size_t size, uint32_t seed = 1); + + const uint32_t cPixelBlockWidth = 4; + const uint32_t cPixelBlockHeight = 4; + const uint32_t cPixelBlockTotalPixels = cPixelBlockWidth * cPixelBlockHeight; + + struct pixel_block + { + color_rgba m_pixels[cPixelBlockHeight][cPixelBlockWidth]; // [y][x] + + inline const color_rgba& operator() (uint32_t x, uint32_t y) const { assert((x < cPixelBlockWidth) && (y < cPixelBlockHeight)); return m_pixels[y][x]; } + inline color_rgba& operator() (uint32_t x, uint32_t y) { assert((x < cPixelBlockWidth) && (y < cPixelBlockHeight)); return m_pixels[y][x]; } + + inline const color_rgba* get_ptr() const { return &m_pixels[0][0]; } + inline color_rgba* get_ptr() { return &m_pixels[0][0]; } + + inline void clear() { clear_obj(*this); } + + inline bool operator== (const pixel_block& rhs) const + { + return memcmp(m_pixels, rhs.m_pixels, sizeof(m_pixels)) == 0; + } + }; + typedef basisu::vector<pixel_block> pixel_block_vec; } // namespace basisu diff --git a/thirdparty/basis_universal/encoder/basisu_etc.cpp b/thirdparty/basis_universal/encoder/basisu_etc.cpp index 232e8965b0..f8bd0f12e5 100644 --- a/thirdparty/basis_universal/encoder/basisu_etc.cpp +++ b/thirdparty/basis_universal/encoder/basisu_etc.cpp @@ -158,6 +158,22 @@ namespace basisu } } } + +#if 0 + for (uint32_t y = 0; y < 64; y++) + { + printf("{"); + for (uint32_t x = 0; x < 256; x++) + { + printf("0x%X", g_etc1_inverse_lookup[y][x]); + if (x != 255) + printf(","); + if (((x & 63) == 63) && (x != 255)) + printf("\n"); + } + printf("},\n"); + } +#endif } // Packs solid color blocks efficiently using a set of small precomputed tables. @@ -1126,6 +1142,7 @@ namespace basisu if (!g_eval_dist_tables[inten_table][m_max_comp_spread]) continue; } + #if 0 if (m_pParams->m_quality <= cETCQualityMedium) { diff --git a/thirdparty/basis_universal/encoder/basisu_etc.h b/thirdparty/basis_universal/encoder/basisu_etc.h index 1e3ece43b8..208f2aac1b 100644 --- a/thirdparty/basis_universal/encoder/basisu_etc.h +++ b/thirdparty/basis_universal/encoder/basisu_etc.h @@ -490,6 +490,35 @@ namespace basisu return dc; } + void get_block_colors_etc1s(color_rgba* pBlock_colors) const + { + color_rgba b; + + unpack_color5(b, get_base5_color(), true); + + const int* pInten_table = g_etc1_inten_tables[get_inten_table(0)]; + + pBlock_colors[0].set(clamp255(b.r + pInten_table[0]), clamp255(b.g + pInten_table[0]), clamp255(b.b + pInten_table[0]), 255); + pBlock_colors[1].set(clamp255(b.r + pInten_table[1]), clamp255(b.g + pInten_table[1]), clamp255(b.b + pInten_table[1]), 255); + pBlock_colors[2].set(clamp255(b.r + pInten_table[2]), clamp255(b.g + pInten_table[2]), clamp255(b.b + pInten_table[2]), 255); + pBlock_colors[3].set(clamp255(b.r + pInten_table[3]), clamp255(b.g + pInten_table[3]), clamp255(b.b + pInten_table[3]), 255); + } + + static void get_block_colors_etc1s(color_rgba* pBlock_colors, const color_rgba &base5_color, uint32_t inten_table) + { + color_rgba b; + b.r = (base5_color.r << 3U) | (base5_color.r >> 2U); + b.g = (base5_color.g << 3U) | (base5_color.g >> 2U); + b.b = (base5_color.b << 3U) | (base5_color.b >> 2U); + + const int* pInten_table = g_etc1_inten_tables[inten_table]; + + pBlock_colors[0].set(clamp255(b.r + pInten_table[0]), clamp255(b.g + pInten_table[0]), clamp255(b.b + pInten_table[0]), 255); + pBlock_colors[1].set(clamp255(b.r + pInten_table[1]), clamp255(b.g + pInten_table[1]), clamp255(b.b + pInten_table[1]), 255); + pBlock_colors[2].set(clamp255(b.r + pInten_table[2]), clamp255(b.g + pInten_table[2]), clamp255(b.b + pInten_table[2]), 255); + pBlock_colors[3].set(clamp255(b.r + pInten_table[3]), clamp255(b.g + pInten_table[3]), clamp255(b.b + pInten_table[3]), 255); + } + void get_block_color(color_rgba& color, uint32_t subblock_index, uint32_t selector_index) const { color_rgba b; diff --git a/thirdparty/basis_universal/encoder/basisu_frontend.cpp b/thirdparty/basis_universal/encoder/basisu_frontend.cpp index 324fc8e447..00210e6679 100644 --- a/thirdparty/basis_universal/encoder/basisu_frontend.cpp +++ b/thirdparty/basis_universal/encoder/basisu_frontend.cpp @@ -19,6 +19,7 @@ // #include "../transcoder/basisu.h" #include "basisu_frontend.h" +#include "basisu_opencl.h" #include <unordered_set> #include <unordered_map> @@ -43,61 +44,15 @@ namespace basisu // TODO - How to handle internal verifies in the basisu lib static inline void handle_verify_failure(int line) { - fprintf(stderr, "ERROR: basisu_frontend: verify check failed at line %i!\n", line); + error_printf("basisu_frontend: verify check failed at line %i!\n", line); abort(); } bool basisu_frontend::init(const params &p) { -#if 0 - // HACK HACK - FILE* pFile; - fopen_s(&pFile, "tv.bin", "rb"); - if (pFile) - { - debug_printf("Using tv.bin\n"); - - fseek(pFile, 0, SEEK_END); - uint32_t size = ftell(pFile); - fseek(pFile, 0, SEEK_SET); - - uint32_t tv = size / sizeof(vec6F_quantizer::training_vec_with_weight); - - basisu::vector<vec6F_quantizer::training_vec_with_weight> v(tv); - fread(&v[0], 1, sizeof(v[0]) * tv, pFile); - - for (uint32_t i = 0; i < tv; i++) - m_endpoint_clusterizer.add_training_vec(v[i].first, v[i].second); - - m_endpoint_clusterizer.generate(16128); - basisu::vector<uint_vec> codebook; - m_endpoint_clusterizer.retrieve(codebook); - - printf("Generated %u entries\n", (uint32_t)codebook.size()); - - fclose(pFile); - exit(0); - } -#endif - - if (p.m_use_hybrid_selector_codebooks) - { - if (!p.m_pGlobal_sel_codebook) - { - debug_printf("basisu_frontend::init: No global sel codebook!\n"); - assert(0); - return false; - } - } - - debug_printf("basisu_frontend::init: Multithreaded: %u, NumEndpointClusters: %u, NumSelectorClusters: %u, Perceptual: %u, CompressionLevel: %u\n", - p.m_multithreaded, p.m_max_endpoint_clusters, p.m_max_selector_clusters, p.m_perceptual, p.m_compression_level); - - debug_printf("Global sel codebook pal bits: %u, Global sel codebook mod bits: %u, Use hybrid selector codebook: %u, Hybrid codebook quality thresh: %f\n", - p.m_num_global_sel_codebook_pal_bits, - p.m_num_global_sel_codebook_mod_bits, - p.m_use_hybrid_selector_codebooks, - p.m_hybrid_codebook_quality_thresh); + debug_printf("basisu_frontend::init: Multithreaded: %u, Job pool total threads: %u, NumEndpointClusters: %u, NumSelectorClusters: %u, Perceptual: %u, CompressionLevel: %u\n", + p.m_multithreaded, p.m_pJob_pool ? p.m_pJob_pool->get_total_threads() : 0, + p.m_max_endpoint_clusters, p.m_max_selector_clusters, p.m_perceptual, p.m_compression_level); if ((p.m_max_endpoint_clusters < 1) || (p.m_max_endpoint_clusters > cMaxEndpointClusters)) return false; @@ -106,8 +61,22 @@ namespace basisu m_source_blocks.resize(0); append_vector(m_source_blocks, p.m_pSource_blocks, p.m_num_source_blocks); - + m_params = p; + + if (m_params.m_pOpenCL_context) + { + BASISU_ASSUME(sizeof(cl_pixel_block) == sizeof(pixel_block)); + + // Upload the RGBA pixel blocks a single time. + if (!opencl_set_pixel_blocks(m_params.m_pOpenCL_context, m_source_blocks.size(), (cl_pixel_block*)m_source_blocks.data())) + { + // This is not fatal, we just won't use OpenCL. + error_printf("basisu_frontend::init: opencl_set_pixel_blocks() failed\n"); + m_params.m_pOpenCL_context = nullptr; + m_opencl_failed = true; + } + } m_encoded_blocks.resize(m_params.m_num_source_blocks); memset(&m_encoded_blocks[0], 0, m_encoded_blocks.size() * sizeof(m_encoded_blocks[0])); @@ -194,8 +163,12 @@ namespace basisu m_total_blocks = m_params.m_num_source_blocks; m_total_pixels = m_total_blocks * cPixelBlockTotalPixels; + // Encode the initial high quality ETC1S texture + init_etc1_images(); + // First quantize the ETC1S endpoints + if (m_params.m_pGlobal_codebooks) { init_global_codebooks(); @@ -205,16 +178,26 @@ namespace basisu init_endpoint_training_vectors(); generate_endpoint_clusters(); - + for (uint32_t refine_endpoint_step = 0; refine_endpoint_step < m_num_endpoint_codebook_iterations; refine_endpoint_step++) { - BASISU_FRONTEND_VERIFY(check_etc1s_constraints()); + if (m_params.m_validate) + { + BASISU_FRONTEND_VERIFY(check_etc1s_constraints()); + + BASISU_FRONTEND_VERIFY(validate_endpoint_cluster_hierarchy(false)); + } if (refine_endpoint_step) { introduce_new_endpoint_clusters(); } + if (m_params.m_validate) + { + BASISU_FRONTEND_VERIFY(validate_endpoint_cluster_hierarchy(false)); + } + generate_endpoint_codebook(refine_endpoint_step); if ((m_params.m_debug_images) && (m_params.m_dump_endpoint_clusterization)) @@ -236,7 +219,7 @@ namespace basisu if ((m_params.m_tex_type == basist::cBASISTexTypeVideoFrames) && (!refine_endpoint_step) && (m_num_endpoint_codebook_iterations == 1)) { eliminate_redundant_or_empty_endpoint_clusters(); - generate_endpoint_codebook(refine_endpoint_step); + generate_endpoint_codebook(basisu::maximum(1U, refine_endpoint_step)); } if ((m_params.m_debug_images) && (m_params.m_dump_endpoint_clusterization)) @@ -250,22 +233,37 @@ namespace basisu dump_endpoint_clusterization_visualization(buf, true); } } + + if (m_params.m_validate) + { + BASISU_FRONTEND_VERIFY(validate_endpoint_cluster_hierarchy(false)); + } eliminate_redundant_or_empty_endpoint_clusters(); + if (m_params.m_validate) + { + BASISU_FRONTEND_VERIFY(validate_endpoint_cluster_hierarchy(false)); + } + if (m_params.m_debug_stats) debug_printf("Total endpoint clusters: %u\n", (uint32_t)m_endpoint_clusters.size()); if (early_out) break; } - - BASISU_FRONTEND_VERIFY(check_etc1s_constraints()); + + if (m_params.m_validate) + { + BASISU_FRONTEND_VERIFY(check_etc1s_constraints()); + } generate_block_endpoint_clusters(); create_initial_packed_texture(); + // Now quantize the ETC1S selectors + generate_selector_clusters(); if (m_use_hierarchical_selector_codebooks) @@ -276,12 +274,12 @@ namespace basisu create_optimized_selector_codebook(0); find_optimal_selector_clusters_for_each_block(); - + introduce_special_selector_clusters(); } else { - const uint32_t num_refine_selector_steps = m_params.m_pGlobal_sel_codebook ? 1 : m_num_selector_codebook_iterations; + const uint32_t num_refine_selector_steps = m_num_selector_codebook_iterations; for (uint32_t refine_selector_steps = 0; refine_selector_steps < num_refine_selector_steps; refine_selector_steps++) { create_optimized_selector_codebook(refine_selector_steps); @@ -289,7 +287,7 @@ namespace basisu find_optimal_selector_clusters_for_each_block(); introduce_special_selector_clusters(); - + if ((m_params.m_compression_level >= 4) || (m_params.m_tex_type == basist::cBASISTexTypeVideoFrames)) { if (!refine_block_endpoints_given_selectors()) @@ -297,7 +295,7 @@ namespace basisu } } } - + optimize_selector_codebook(); if (m_params.m_debug_stats) @@ -574,9 +572,6 @@ namespace basisu { debug_printf("introduce_special_selector_clusters\n"); - if (m_params.m_pGlobal_sel_codebook) - return; - uint32_t total_blocks_relocated = 0; const uint32_t initial_selector_clusters = (uint32_t)m_selector_cluster_block_indices.size(); @@ -722,23 +717,15 @@ namespace basisu } basisu::vector<etc_block> new_optimized_cluster_selectors(m_optimized_cluster_selectors.size() ? total_new_entries : 0); - basist::etc1_global_selector_codebook_entry_id_vec new_optimized_cluster_selector_global_cb_ids(m_optimized_cluster_selector_global_cb_ids.size() ? total_new_entries : 0); basisu::vector<uint_vec> new_selector_cluster_indices(m_selector_cluster_block_indices.size() ? total_new_entries : 0); - bool_vec new_selector_cluster_uses_global_cb(m_selector_cluster_uses_global_cb.size() ? total_new_entries : 0); for (uint32_t i = 0; i < total_new_entries; i++) { if (m_optimized_cluster_selectors.size()) new_optimized_cluster_selectors[i] = m_optimized_cluster_selectors[new_to_old[i]]; - if (m_optimized_cluster_selector_global_cb_ids.size()) - new_optimized_cluster_selector_global_cb_ids[i] = m_optimized_cluster_selector_global_cb_ids[new_to_old[i]]; - //if (m_selector_cluster_block_indices.size()) // new_selector_cluster_indices[i] = m_selector_cluster_block_indices[new_to_old[i]]; - - if (m_selector_cluster_uses_global_cb.size()) - new_selector_cluster_uses_global_cb[i] = m_selector_cluster_uses_global_cb[new_to_old[i]]; } for (uint32_t i = 0; i < m_block_selector_cluster_index.size(); i++) @@ -747,9 +734,7 @@ namespace basisu } m_optimized_cluster_selectors.swap(new_optimized_cluster_selectors); - m_optimized_cluster_selector_global_cb_ids.swap(new_optimized_cluster_selector_global_cb_ids); m_selector_cluster_block_indices.swap(new_selector_cluster_indices); - m_selector_cluster_uses_global_cb.swap(new_selector_cluster_uses_global_cb); // This isn't strictly necessary - doing it for completeness/future sanity. if (m_selector_clusters_within_each_parent_cluster.size()) @@ -771,66 +756,93 @@ namespace basisu m_etc1_blocks_etc1s.resize(m_total_blocks); - const uint32_t N = 4096; - for (uint32_t block_index_iter = 0; block_index_iter < m_total_blocks; block_index_iter += N) + bool use_cpu = true; + + if (m_params.m_pOpenCL_context) + { + uint32_t total_perms = 64; + if (m_params.m_compression_level == 0) + total_perms = 4; + else if (m_params.m_compression_level == 1) + total_perms = 16; + else if (m_params.m_compression_level == BASISU_MAX_COMPRESSION_LEVEL) + total_perms = OPENCL_ENCODE_ETC1S_MAX_PERMS; + + bool status = opencl_encode_etc1s_blocks(m_params.m_pOpenCL_context, m_etc1_blocks_etc1s.data(), m_params.m_perceptual, total_perms); + if (status) + use_cpu = false; + else + { + error_printf("basisu_frontend::init_etc1_images: opencl_encode_etc1s_blocks() failed! Using CPU.\n"); + m_params.m_pOpenCL_context = nullptr; + m_opencl_failed = true; + } + } + + if (use_cpu) { - const uint32_t first_index = block_index_iter; - const uint32_t last_index = minimum<uint32_t>(m_total_blocks, first_index + N); + const uint32_t N = 4096; + for (uint32_t block_index_iter = 0; block_index_iter < m_total_blocks; block_index_iter += N) + { + const uint32_t first_index = block_index_iter; + const uint32_t last_index = minimum<uint32_t>(m_total_blocks, first_index + N); #ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->add_job( [this, first_index, last_index] { + m_params.m_pJob_pool->add_job([this, first_index, last_index] { #endif - for (uint32_t block_index = first_index; block_index < last_index; block_index++) - { - const pixel_block &source_blk = get_source_pixel_block(block_index); + for (uint32_t block_index = first_index; block_index < last_index; block_index++) + { + const pixel_block& source_blk = get_source_pixel_block(block_index); - etc1_optimizer optimizer; - etc1_optimizer::params optimizer_params; - etc1_optimizer::results optimizer_results; - - if (m_params.m_compression_level == 0) - optimizer_params.m_quality = cETCQualityFast; - else if (m_params.m_compression_level == 1) - optimizer_params.m_quality = cETCQualityMedium; - else if (m_params.m_compression_level == BASISU_MAX_COMPRESSION_LEVEL) - optimizer_params.m_quality = cETCQualityUber; - - optimizer_params.m_num_src_pixels = 16; - optimizer_params.m_pSrc_pixels = source_blk.get_ptr(); - optimizer_params.m_perceptual = m_params.m_perceptual; + etc1_optimizer optimizer; + etc1_optimizer::params optimizer_params; + etc1_optimizer::results optimizer_results; - uint8_t selectors[16]; - optimizer_results.m_pSelectors = selectors; - optimizer_results.m_n = 16; + if (m_params.m_compression_level == 0) + optimizer_params.m_quality = cETCQualityFast; + else if (m_params.m_compression_level == 1) + optimizer_params.m_quality = cETCQualityMedium; + else if (m_params.m_compression_level == BASISU_MAX_COMPRESSION_LEVEL) + optimizer_params.m_quality = cETCQualityUber; - optimizer.init(optimizer_params, optimizer_results); - if (!optimizer.compute()) - BASISU_FRONTEND_VERIFY(false); + optimizer_params.m_num_src_pixels = 16; + optimizer_params.m_pSrc_pixels = source_blk.get_ptr(); + optimizer_params.m_perceptual = m_params.m_perceptual; - etc_block &blk = m_etc1_blocks_etc1s[block_index]; + uint8_t selectors[16]; + optimizer_results.m_pSelectors = selectors; + optimizer_results.m_n = 16; - memset(&blk, 0, sizeof(blk)); - blk.set_block_color5_etc1s(optimizer_results.m_block_color_unscaled); - blk.set_inten_tables_etc1s(optimizer_results.m_block_inten_table); - blk.set_flip_bit(true); + optimizer.init(optimizer_params, optimizer_results); + if (!optimizer.compute()) + BASISU_FRONTEND_VERIFY(false); - for (uint32_t y = 0; y < 4; y++) - for (uint32_t x = 0; x < 4; x++) - blk.set_selector(x, y, selectors[x + y * 4]); - } + etc_block& blk = m_etc1_blocks_etc1s[block_index]; + + memset(&blk, 0, sizeof(blk)); + blk.set_block_color5_etc1s(optimizer_results.m_block_color_unscaled); + blk.set_inten_tables_etc1s(optimizer_results.m_block_inten_table); + blk.set_flip_bit(true); + + for (uint32_t y = 0; y < 4; y++) + for (uint32_t x = 0; x < 4; x++) + blk.set_selector(x, y, selectors[x + y * 4]); + } #ifndef __EMSCRIPTEN__ - } ); + }); #endif - } + } #ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->wait_for_all(); + m_params.m_pJob_pool->wait_for_all(); #endif - debug_printf("Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); + } // use_cpu + + debug_printf("init_etc1_images: Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); } void basisu_frontend::init_endpoint_training_vectors() @@ -889,13 +901,15 @@ namespace basisu const uint32_t parent_codebook_size = (m_params.m_max_endpoint_clusters >= 256) ? BASISU_ENDPOINT_PARENT_CODEBOOK_SIZE : 0; uint32_t max_threads = 0; max_threads = m_params.m_multithreaded ? minimum<int>(std::thread::hardware_concurrency(), cMaxCodebookCreationThreads) : 0; + if (m_params.m_pJob_pool) + max_threads = minimum<int>((int)m_params.m_pJob_pool->get_total_threads(), max_threads); - debug_printf("Using %u threads to create codebook\n", max_threads); + debug_printf("max_threads: %u\n", max_threads); bool status = generate_hierarchical_codebook_threaded(m_endpoint_clusterizer, m_params.m_max_endpoint_clusters, m_use_hierarchical_endpoint_codebooks ? parent_codebook_size : 0, m_endpoint_clusters, m_endpoint_parent_clusters, - max_threads, m_params.m_pJob_pool); + max_threads, m_params.m_pJob_pool, true); BASISU_FRONTEND_VERIFY(status); if (m_use_hierarchical_endpoint_codebooks) @@ -940,6 +954,9 @@ namespace basisu for (uint32_t j = 0; j < cluster.size(); j++) { const uint32_t block_index = cluster[j] >> 1; + + BASISU_FRONTEND_VERIFY(block_index < m_block_parent_endpoint_cluster.size()); + if (!j) { parent_cluster_index = m_block_parent_endpoint_cluster[block_index]; @@ -956,6 +973,7 @@ namespace basisu debug_printf("Total endpoint clusters: %u, parent clusters: %u\n", (uint32_t)m_endpoint_clusters.size(), (uint32_t)m_endpoint_parent_clusters.size()); } + // Iterate through each array of endpoint cluster block indices and set the m_block_endpoint_clusters_indices[][] array to indicaste which cluster index each block uses. void basisu_frontend::generate_block_endpoint_clusters() { m_block_endpoint_clusters_indices.resize(m_total_blocks); @@ -974,11 +992,14 @@ namespace basisu } // cluster_indices_iter } - for (uint32_t block_index = 0; block_index < m_total_blocks; block_index++) + if (m_params.m_validate) { - uint32_t cluster_0 = m_block_endpoint_clusters_indices[block_index][0]; - uint32_t cluster_1 = m_block_endpoint_clusters_indices[block_index][1]; - BASISU_FRONTEND_VERIFY(cluster_0 == cluster_1); + for (uint32_t block_index = 0; block_index < m_total_blocks; block_index++) + { + uint32_t cluster_0 = m_block_endpoint_clusters_indices[block_index][0]; + uint32_t cluster_1 = m_block_endpoint_clusters_indices[block_index][1]; + BASISU_FRONTEND_VERIFY(cluster_0 == cluster_1); + } } } @@ -989,6 +1010,7 @@ namespace basisu m_endpoint_clusters_within_each_parent_cluster.resize(0); m_endpoint_clusters_within_each_parent_cluster.resize(m_endpoint_parent_clusters.size()); + // Note: It's possible that some blocks got moved into the same cluster, but live in different parent clusters. for (uint32_t block_index = 0; block_index < m_total_blocks; block_index++) { const uint32_t cluster_index = m_block_endpoint_clusters_indices[block_index][0]; @@ -1125,6 +1147,8 @@ namespace basisu std::unordered_set<uint32_t> ignore_cluster; + uint32_t total_new_clusters = 0; + while (num_new_endpoint_clusters) { if (m_subblock_endpoint_quant_err_vec.size() == 0) @@ -1173,10 +1197,14 @@ namespace basisu cluster_sizes[subblock_to_move.m_cluster_index] -= 2; ignore_cluster.insert(subblock_to_move.m_cluster_index); + + total_new_clusters++; num_new_endpoint_clusters--; } + debug_printf("Introduced %i new endpoint clusters\n", total_new_clusters); + for (uint32_t i = 0; i < num_orig_endpoint_clusters; i++) { uint_vec &cluster_indices = m_endpoint_clusters[i]; @@ -1200,150 +1228,433 @@ namespace basisu generate_block_endpoint_clusters(); } + struct color_rgba_hasher + { + inline std::size_t operator()(const color_rgba& k) const + { + uint32_t v = *(const uint32_t*)&k; + + //return bitmix32(v); + + //v ^= (v << 10); + //v ^= (v >> 12); + + return v; + } + }; + // Given each endpoint cluster, gather all the block pixels which are in that cluster and compute optimized ETC1S endpoints for them. // TODO: Don't optimize endpoint clusters which haven't changed. + // If step>=1, we check to ensure the new endpoint values actually decrease quantization error. void basisu_frontend::generate_endpoint_codebook(uint32_t step) { debug_printf("generate_endpoint_codebook\n"); + + interval_timer tm; + tm.start(); m_endpoint_cluster_etc_params.resize(m_endpoint_clusters.size()); - const uint32_t N = 128; - for (uint32_t cluster_index_iter = 0; cluster_index_iter < m_endpoint_clusters.size(); cluster_index_iter += N) + bool use_cpu = true; + // TODO: Get this working when step>0 + if (m_params.m_pOpenCL_context && !step) { - const uint32_t first_index = cluster_index_iter; - const uint32_t last_index = minimum<uint32_t>((uint32_t)m_endpoint_clusters.size(), cluster_index_iter + N); + const uint32_t total_clusters = m_endpoint_clusters.size(); -#ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->add_job( [this, first_index, last_index, step ] { -#endif + basisu::vector<cl_pixel_cluster> pixel_clusters(total_clusters); + + std::vector<color_rgba> input_pixels; + input_pixels.reserve(m_total_blocks * 16); - for (uint32_t cluster_index = first_index; cluster_index < last_index; cluster_index++) + std::vector<uint32_t> pixel_weights; + pixel_weights.reserve(m_total_blocks * 16); + + uint_vec cluster_sizes(total_clusters); + + //typedef basisu::hash_map<color_rgba, uint32_t, color_rgba_hasher> color_hasher_type; + //color_hasher_type color_hasher; + //color_hasher.reserve(2048); + + interval_timer hash_tm; + hash_tm.start(); + + basisu::vector<uint32_t> colors, colors2; + colors.reserve(65536); + colors2.reserve(65536); + + for (uint32_t cluster_index = 0; cluster_index < m_endpoint_clusters.size(); cluster_index++) + { + const basisu::vector<uint32_t>& cluster_indices = m_endpoint_clusters[cluster_index]; + assert((cluster_indices.size() & 1) == 0); + +#if 0 + uint64_t first_pixel_index = input_pixels.size(); + const uint32_t total_pixels = 16 * (cluster_indices.size() / 2); + + input_pixels.resize(input_pixels.size() + total_pixels); + pixel_weights.resize(pixel_weights.size() + total_pixels); + + uint64_t dst_ofs = first_pixel_index; + + uint64_t total_r = 0, total_g = 0, total_b = 0; + for (uint32_t cluster_indices_iter = 0; cluster_indices_iter < cluster_indices.size(); cluster_indices_iter++) { - const basisu::vector<uint32_t>& cluster_indices = m_endpoint_clusters[cluster_index]; + const uint32_t subblock_index = cluster_indices[cluster_indices_iter] & 1; + if (subblock_index) + continue; - BASISU_FRONTEND_VERIFY(cluster_indices.size()); + const uint32_t block_index = cluster_indices[cluster_indices_iter] >> 1; + const color_rgba* pBlock_pixels = get_source_pixel_block(block_index).get_ptr(); - const uint32_t total_pixels = (uint32_t)cluster_indices.size() * 8; + for (uint32_t i = 0; i < 16; i++) + { + input_pixels[dst_ofs] = pBlock_pixels[i]; + pixel_weights[dst_ofs] = 1; + dst_ofs++; - basisu::vector<color_rgba> cluster_pixels(total_pixels); + total_r += pBlock_pixels[i].r; + total_g += pBlock_pixels[i].g; + total_b += pBlock_pixels[i].b; + } + } - for (uint32_t cluster_indices_iter = 0; cluster_indices_iter < cluster_indices.size(); cluster_indices_iter++) + //printf("%i %f %f %f\n", cluster_index, total_r / (float)total_pixels, total_g / (float)total_pixels, total_b / (float)total_pixels); + + pixel_clusters[cluster_index].m_first_pixel_index = first_pixel_index; + pixel_clusters[cluster_index].m_total_pixels = total_pixels; + cluster_sizes[cluster_index] = total_pixels; +#elif 1 + colors.resize(cluster_indices.size() * 8); + colors2.resize(cluster_indices.size() * 8); + uint32_t dst_ofs = 0; + + for (uint32_t cluster_indices_iter = 0; cluster_indices_iter < cluster_indices.size(); cluster_indices_iter++) + { + const uint32_t subblock_index = cluster_indices[cluster_indices_iter] & 1; + if (subblock_index) + continue; + + const uint32_t block_index = cluster_indices[cluster_indices_iter] >> 1; + const color_rgba* pBlock_pixels = get_source_pixel_block(block_index).get_ptr(); + + memcpy(colors.data() + dst_ofs, pBlock_pixels, sizeof(color_rgba) * 16); + dst_ofs += 16; + + } // cluster_indices_iter + + uint32_t* pSorted = radix_sort(colors.size(), colors.data(), colors2.data(), 0, 3); + + const uint64_t first_pixel_index = input_pixels.size(); + + uint32_t prev_color = 0, cur_weight = 0; + + for (uint32_t i = 0; i < colors.size(); i++) + { + uint32_t cur_color = pSorted[i]; + if (cur_color == prev_color) { - const uint32_t block_index = cluster_indices[cluster_indices_iter] >> 1; - const uint32_t subblock_index = cluster_indices[cluster_indices_iter] & 1; + if (++cur_weight == 0) + cur_weight--; + } + else + { + if (cur_weight) + { + input_pixels.push_back(*(const color_rgba*)&prev_color); + pixel_weights.push_back(cur_weight); + } - const bool flipped = true; + prev_color = cur_color; + cur_weight = 1; + } + } - const color_rgba *pBlock_pixels = get_source_pixel_block(block_index).get_ptr(); + if (cur_weight) + { + input_pixels.push_back(*(const color_rgba*)&prev_color); + pixel_weights.push_back(cur_weight); + } - for (uint32_t pixel_index = 0; pixel_index < 8; pixel_index++) + uint32_t total_unique_pixels = (uint32_t)(input_pixels.size() - first_pixel_index); + + pixel_clusters[cluster_index].m_first_pixel_index = first_pixel_index; + pixel_clusters[cluster_index].m_total_pixels = total_unique_pixels; + + cluster_sizes[cluster_index] = total_unique_pixels; +#else + color_hasher.reset(); + + for (uint32_t cluster_indices_iter = 0; cluster_indices_iter < cluster_indices.size(); cluster_indices_iter++) + { + const uint32_t subblock_index = cluster_indices[cluster_indices_iter] & 1; + if (subblock_index) + continue; + + const uint32_t block_index = cluster_indices[cluster_indices_iter] >> 1; + const color_rgba* pBlock_pixels = get_source_pixel_block(block_index).get_ptr(); + + uint32_t *pPrev_weight = nullptr; + color_rgba prev_color; + + { + color_rgba cur_color = pBlock_pixels[0]; + auto res = color_hasher.insert(cur_color, 0); + + uint32_t& weight = (res.first)->second; + if (weight != UINT32_MAX) + weight++; + + prev_color = cur_color; + pPrev_weight = &(res.first)->second; + } + + for (uint32_t i = 1; i < 16; i++) + { + color_rgba cur_color = pBlock_pixels[i]; + + if (cur_color == prev_color) + { + if (*pPrev_weight != UINT32_MAX) + *pPrev_weight = *pPrev_weight + 1; + } + else { - const color_rgba &c = pBlock_pixels[g_etc1_pixel_indices[flipped][subblock_index][pixel_index]]; - cluster_pixels[cluster_indices_iter * 8 + pixel_index] = c; + auto res = color_hasher.insert(cur_color, 0); + + uint32_t& weight = (res.first)->second; + if (weight != UINT32_MAX) + weight++; + + prev_color = cur_color; + pPrev_weight = &(res.first)->second; } } - endpoint_cluster_etc_params new_subblock_params; + } // cluster_indices_iter + + const uint64_t first_pixel_index = input_pixels.size(); + uint32_t total_unique_pixels = color_hasher.size(); + + pixel_clusters[cluster_index].m_first_pixel_index = first_pixel_index; + pixel_clusters[cluster_index].m_total_pixels = total_unique_pixels; + + input_pixels.resize(first_pixel_index + total_unique_pixels); + pixel_weights.resize(first_pixel_index + total_unique_pixels); - { - etc1_optimizer optimizer; - etc1_solution_coordinates solutions[2]; + uint32_t j = 0; + + for (auto it = color_hasher.begin(); it != color_hasher.end(); ++it, ++j) + { + input_pixels[first_pixel_index + j] = it->first; + pixel_weights[first_pixel_index + j] = it->second; + } - etc1_optimizer::params cluster_optimizer_params; - cluster_optimizer_params.m_num_src_pixels = total_pixels; - cluster_optimizer_params.m_pSrc_pixels = &cluster_pixels[0]; + cluster_sizes[cluster_index] = total_unique_pixels; +#endif - cluster_optimizer_params.m_use_color4 = false; - cluster_optimizer_params.m_perceptual = m_params.m_perceptual; + } // cluster_index - if (m_params.m_compression_level <= 1) - cluster_optimizer_params.m_quality = cETCQualityMedium; - else if (m_params.m_compression_level == BASISU_MAX_COMPRESSION_LEVEL) - cluster_optimizer_params.m_quality = cETCQualityUber; + debug_printf("Total hash time: %3.3f secs\n", hash_tm.get_elapsed_secs()); - etc1_optimizer::results cluster_optimizer_results; + debug_printf("Total unique colors: %llu\n", input_pixels.size()); - basisu::vector<uint8_t> cluster_selectors(total_pixels); - cluster_optimizer_results.m_n = total_pixels; - cluster_optimizer_results.m_pSelectors = &cluster_selectors[0]; + uint_vec sorted_cluster_indices_new_to_old(total_clusters); + indirect_sort(total_clusters, sorted_cluster_indices_new_to_old.data(), cluster_sizes.data()); + //for (uint32_t i = 0; i < total_clusters; i++) + // sorted_cluster_indices_new_to_old[i] = i; - optimizer.init(cluster_optimizer_params, cluster_optimizer_results); + uint_vec sorted_cluster_indices_old_to_new(total_clusters); + for (uint32_t i = 0; i < total_clusters; i++) + sorted_cluster_indices_old_to_new[sorted_cluster_indices_new_to_old[i]] = i; - if (!optimizer.compute()) - BASISU_FRONTEND_VERIFY(false); + basisu::vector<cl_pixel_cluster> sorted_pixel_clusters(total_clusters); + for (uint32_t i = 0; i < total_clusters; i++) + sorted_pixel_clusters[i] = pixel_clusters[sorted_cluster_indices_new_to_old[i]]; - new_subblock_params.m_color_unscaled[0] = cluster_optimizer_results.m_block_color_unscaled; - new_subblock_params.m_inten_table[0] = cluster_optimizer_results.m_block_inten_table; - new_subblock_params.m_color_error[0] = cluster_optimizer_results.m_error; - } + uint32_t total_perms = 64; + if (m_params.m_compression_level <= 1) + total_perms = 16; + else if (m_params.m_compression_level == BASISU_MAX_COMPRESSION_LEVEL) + total_perms = OPENCL_ENCODE_ETC1S_MAX_PERMS; - endpoint_cluster_etc_params &prev_etc_params = m_endpoint_cluster_etc_params[cluster_index]; + basisu::vector<etc_block> output_blocks(total_clusters); - bool use_new_subblock_params = false; - if ((!step) || (!prev_etc_params.m_valid)) - use_new_subblock_params = true; - else + if (opencl_encode_etc1s_pixel_clusters( + m_params.m_pOpenCL_context, + output_blocks.data(), + total_clusters, + sorted_pixel_clusters.data(), + input_pixels.size(), + input_pixels.data(), + pixel_weights.data(), + m_params.m_perceptual, total_perms)) + { + for (uint32_t old_cluster_index = 0; old_cluster_index < m_endpoint_clusters.size(); old_cluster_index++) + { + const uint32_t new_cluster_index = sorted_cluster_indices_old_to_new[old_cluster_index]; + + const etc_block& blk = output_blocks[new_cluster_index]; + + endpoint_cluster_etc_params& prev_etc_params = m_endpoint_cluster_etc_params[old_cluster_index]; + + prev_etc_params.m_valid = true; + etc_block::unpack_color5(prev_etc_params.m_color_unscaled[0], blk.get_base5_color(), false); + prev_etc_params.m_inten_table[0] = blk.get_inten_table(0); + prev_etc_params.m_color_error[0] = 0; // dummy value - we don't actually use this + } + + use_cpu = false; + } + else + { + error_printf("basisu_frontend::generate_endpoint_codebook: opencl_encode_etc1s_pixel_clusters() failed! Using CPU.\n"); + m_params.m_pOpenCL_context = nullptr; + m_opencl_failed = true; + } + + } // if (opencl_is_available() && m_params.m_use_opencl) + + if (use_cpu) + { + const uint32_t N = 128; + for (uint32_t cluster_index_iter = 0; cluster_index_iter < m_endpoint_clusters.size(); cluster_index_iter += N) + { + const uint32_t first_index = cluster_index_iter; + const uint32_t last_index = minimum<uint32_t>((uint32_t)m_endpoint_clusters.size(), cluster_index_iter + N); + +#ifndef __EMSCRIPTEN__ + m_params.m_pJob_pool->add_job([this, first_index, last_index, step] { +#endif + + for (uint32_t cluster_index = first_index; cluster_index < last_index; cluster_index++) { - assert(prev_etc_params.m_valid); + const basisu::vector<uint32_t>& cluster_indices = m_endpoint_clusters[cluster_index]; - uint64_t total_prev_err = 0; - + BASISU_FRONTEND_VERIFY(cluster_indices.size()); + + const uint32_t total_pixels = (uint32_t)cluster_indices.size() * 8; + + basisu::vector<color_rgba> cluster_pixels(total_pixels); + + for (uint32_t cluster_indices_iter = 0; cluster_indices_iter < cluster_indices.size(); cluster_indices_iter++) { - color_rgba block_colors[4]; + const uint32_t block_index = cluster_indices[cluster_indices_iter] >> 1; + const uint32_t subblock_index = cluster_indices[cluster_indices_iter] & 1; - etc_block::get_block_colors5(block_colors, prev_etc_params.m_color_unscaled[0], prev_etc_params.m_inten_table[0], false); + const bool flipped = true; - uint64_t total_err = 0; + const color_rgba* pBlock_pixels = get_source_pixel_block(block_index).get_ptr(); - for (uint32_t i = 0; i < total_pixels; i++) + for (uint32_t pixel_index = 0; pixel_index < 8; pixel_index++) { - const color_rgba &c = cluster_pixels[i]; + const color_rgba& c = pBlock_pixels[g_etc1_pixel_indices[flipped][subblock_index][pixel_index]]; + cluster_pixels[cluster_indices_iter * 8 + pixel_index] = c; + } + } - uint64_t best_err = UINT64_MAX; - //uint32_t best_index = 0; + endpoint_cluster_etc_params new_subblock_params; + + { + etc1_optimizer optimizer; + etc1_solution_coordinates solutions[2]; + + etc1_optimizer::params cluster_optimizer_params; + cluster_optimizer_params.m_num_src_pixels = total_pixels; + cluster_optimizer_params.m_pSrc_pixels = &cluster_pixels[0]; + + cluster_optimizer_params.m_use_color4 = false; + cluster_optimizer_params.m_perceptual = m_params.m_perceptual; + + if (m_params.m_compression_level <= 1) + cluster_optimizer_params.m_quality = cETCQualityMedium; + else if (m_params.m_compression_level == BASISU_MAX_COMPRESSION_LEVEL) + cluster_optimizer_params.m_quality = cETCQualityUber; + + etc1_optimizer::results cluster_optimizer_results; + + basisu::vector<uint8_t> cluster_selectors(total_pixels); + cluster_optimizer_results.m_n = total_pixels; + cluster_optimizer_results.m_pSelectors = &cluster_selectors[0]; + + optimizer.init(cluster_optimizer_params, cluster_optimizer_results); + + if (!optimizer.compute()) + BASISU_FRONTEND_VERIFY(false); + + new_subblock_params.m_color_unscaled[0] = cluster_optimizer_results.m_block_color_unscaled; + new_subblock_params.m_inten_table[0] = cluster_optimizer_results.m_block_inten_table; + new_subblock_params.m_color_error[0] = cluster_optimizer_results.m_error; + } + + endpoint_cluster_etc_params& prev_etc_params = m_endpoint_cluster_etc_params[cluster_index]; + + bool use_new_subblock_params = false; + if ((!step) || (!prev_etc_params.m_valid)) + use_new_subblock_params = true; + else + { + assert(prev_etc_params.m_valid); + + uint64_t total_prev_err = 0; + + { + color_rgba block_colors[4]; + + etc_block::get_block_colors5(block_colors, prev_etc_params.m_color_unscaled[0], prev_etc_params.m_inten_table[0], false); - for (uint32_t s = 0; s < 4; s++) + uint64_t total_err = 0; + + for (uint32_t i = 0; i < total_pixels; i++) { - uint64_t err = color_distance(m_params.m_perceptual, c, block_colors[s], false); - if (err < best_err) + const color_rgba& c = cluster_pixels[i]; + + uint64_t best_err = UINT64_MAX; + //uint32_t best_index = 0; + + for (uint32_t s = 0; s < 4; s++) { - best_err = err; - //best_index = s; + uint64_t err = color_distance(m_params.m_perceptual, c, block_colors[s], false); + if (err < best_err) + { + best_err = err; + //best_index = s; + } } + + total_err += best_err; } - total_err += best_err; + total_prev_err += total_err; } - total_prev_err += total_err; + // See if we should update this cluster's endpoints (if the error has actually fallen) + if (total_prev_err > new_subblock_params.m_color_error[0]) + { + use_new_subblock_params = true; + } } - // See if we should update this cluster's endpoints (if the error has actually fallen) - if (total_prev_err > new_subblock_params.m_color_error[0]) + if (use_new_subblock_params) { - use_new_subblock_params = true; - } - } + new_subblock_params.m_valid = true; - if (use_new_subblock_params) - { - new_subblock_params.m_valid = true; + prev_etc_params = new_subblock_params; + } - prev_etc_params = new_subblock_params; - } - - } // cluster_index + } // cluster_index #ifndef __EMSCRIPTEN__ - } ); + }); #endif - } // cluster_index_iter + } // cluster_index_iter #ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->wait_for_all(); + m_params.m_pJob_pool->wait_for_all(); #endif + } + + debug_printf("Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); } bool basisu_frontend::check_etc1s_constraints() const @@ -1373,6 +1684,8 @@ namespace basisu return true; } + // For each block, determine which ETC1S endpoint cluster can encode that block with lowest error. + // This reassigns blocks to different endpoint clusters. uint32_t basisu_frontend::refine_endpoint_clusterization() { debug_printf("refine_endpoint_clusterization\n"); @@ -1380,6 +1693,8 @@ namespace basisu if (m_use_hierarchical_endpoint_codebooks) compute_endpoint_clusters_within_each_parent_cluster(); + // Note: It's possible that an endpoint cluster may live in more than one parent cluster after the first refinement step. + basisu::vector<vec2U> block_clusters(m_total_blocks); for (int cluster_index = 0; cluster_index < static_cast<int>(m_endpoint_clusters.size()); cluster_index++) @@ -1400,156 +1715,255 @@ namespace basisu // Create a new endpoint clusterization + interval_timer tm; + tm.start(); + uint_vec best_cluster_indices(m_total_blocks); - const uint32_t N = 1024; - for (uint32_t block_index_iter = 0; block_index_iter < m_total_blocks; block_index_iter += N) + bool use_cpu = true; + // TODO: Support non-hierarchical endpoint codebooks here + if (m_params.m_pOpenCL_context && m_use_hierarchical_endpoint_codebooks) { - const uint32_t first_index = block_index_iter; - const uint32_t last_index = minimum<uint32_t>(m_total_blocks, first_index + N); + // For the OpenCL kernel, we order the parent endpoint clusters by smallest to largest for efficiency. + // We also prepare an array of block info structs that point into this new parent endpoint cluster array. + const uint32_t total_parent_clusters = m_endpoint_clusters_within_each_parent_cluster.size(); -#ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->add_job( [this, first_index, last_index, &best_cluster_indices, &block_clusters] { -#endif + basisu::vector<cl_block_info_struct> cl_block_info_structs(m_total_blocks); + + // the size of each parent cluster, in total clusters + uint_vec parent_cluster_sizes(total_parent_clusters); + for (uint32_t i = 0; i < total_parent_clusters; i++) + parent_cluster_sizes[i] = m_endpoint_clusters_within_each_parent_cluster[i].size(); + + uint_vec first_parent_cluster_ofs(total_parent_clusters); + uint32_t cur_ofs = 0; + for (uint32_t i = 0; i < total_parent_clusters; i++) + { + first_parent_cluster_ofs[i] = cur_ofs; - for (uint32_t block_index = first_index; block_index < last_index; block_index++) + cur_ofs += parent_cluster_sizes[i]; + } + + // Note: total_actual_endpoint_clusters is not necessarly equal to m_endpoint_clusters.size(), because clusters may live in multiple parent clusters after the first refinement step. + BASISU_FRONTEND_VERIFY(cur_ofs >= m_endpoint_clusters.size()); + const uint32_t total_actual_endpoint_clusters = cur_ofs; + basisu::vector<cl_endpoint_cluster_struct> cl_endpoint_cluster_structs(total_actual_endpoint_clusters); + + for (uint32_t i = 0; i < total_parent_clusters; i++) + { + const uint32_t dst_ofs = first_parent_cluster_ofs[i]; + + const uint32_t parent_cluster_size = parent_cluster_sizes[i]; + + assert(m_endpoint_clusters_within_each_parent_cluster[i].size() == parent_cluster_size); + + for (uint32_t j = 0; j < parent_cluster_size; j++) { - const uint32_t cluster_index = block_clusters[block_index][0]; - BASISU_FRONTEND_VERIFY(cluster_index == block_clusters[block_index][1]); + const uint32_t endpoint_cluster_index = m_endpoint_clusters_within_each_parent_cluster[i][j]; - const color_rgba *pSubblock_pixels = get_source_pixel_block(block_index).get_ptr(); - const uint32_t num_subblock_pixels = 16; + color_rgba cluster_etc_base_color(m_endpoint_cluster_etc_params[endpoint_cluster_index].m_color_unscaled[0]); + uint32_t cluster_etc_inten = m_endpoint_cluster_etc_params[endpoint_cluster_index].m_inten_table[0]; - uint64_t best_cluster_err = INT64_MAX; - uint32_t best_cluster_index = 0; + cl_endpoint_cluster_structs[dst_ofs + j].m_unscaled_color = cluster_etc_base_color; + cl_endpoint_cluster_structs[dst_ofs + j].m_etc_inten = (uint8_t)cluster_etc_inten; + cl_endpoint_cluster_structs[dst_ofs + j].m_cluster_index = (uint16_t)endpoint_cluster_index; + } + } + + for (uint32_t block_index = 0; block_index < m_total_blocks; block_index++) + { + const uint32_t block_parent_endpoint_cluster_index = m_block_parent_endpoint_cluster[block_index]; + + cl_block_info_structs[block_index].m_num_clusters = (uint16_t)(parent_cluster_sizes[block_parent_endpoint_cluster_index]); + cl_block_info_structs[block_index].m_first_cluster_ofs = (uint16_t)(first_parent_cluster_ofs[block_parent_endpoint_cluster_index]); - const uint32_t block_parent_endpoint_cluster_index = m_block_parent_endpoint_cluster.size() ? m_block_parent_endpoint_cluster[block_index] : 0; - const uint_vec *pCluster_indices = m_endpoint_clusters_within_each_parent_cluster.size() ? &m_endpoint_clusters_within_each_parent_cluster[block_parent_endpoint_cluster_index] : nullptr; + const uint32_t block_cluster_index = block_clusters[block_index][0]; + cl_block_info_structs[block_index].m_cur_cluster_index = (uint16_t)block_cluster_index; + cl_block_info_structs[block_index].m_cur_cluster_etc_inten = (uint8_t)m_endpoint_cluster_etc_params[block_cluster_index].m_inten_table[0]; + } + + uint_vec block_cluster_indices(m_total_blocks); + for (uint32_t i = 0; i < m_total_blocks; i++) + block_cluster_indices[i] = block_clusters[i][0]; - const uint32_t total_clusters = m_use_hierarchical_endpoint_codebooks ? (uint32_t)pCluster_indices->size() : (uint32_t)m_endpoint_clusters.size(); + uint_vec sorted_block_indices(m_total_blocks); + indirect_sort(m_total_blocks, sorted_block_indices.data(), block_cluster_indices.data()); - for (uint32_t i = 0; i < total_clusters; i++) + bool status = opencl_refine_endpoint_clusterization( + m_params.m_pOpenCL_context, + cl_block_info_structs.data(), + total_actual_endpoint_clusters, + cl_endpoint_cluster_structs.data(), + sorted_block_indices.data(), + best_cluster_indices.data(), + m_params.m_perceptual); + + if (status) + { + use_cpu = false; + } + else + { + error_printf("basisu_frontend::refine_endpoint_clusterization: opencl_refine_endpoint_clusterization() failed! Using CPU.\n"); + m_params.m_pOpenCL_context = nullptr; + m_opencl_failed = true; + } + } + + if (use_cpu) + { + const uint32_t N = 1024; + for (uint32_t block_index_iter = 0; block_index_iter < m_total_blocks; block_index_iter += N) + { + const uint32_t first_index = block_index_iter; + const uint32_t last_index = minimum<uint32_t>(m_total_blocks, first_index + N); + +#ifndef __EMSCRIPTEN__ + m_params.m_pJob_pool->add_job([this, first_index, last_index, &best_cluster_indices, &block_clusters] { +#endif + + for (uint32_t block_index = first_index; block_index < last_index; block_index++) { - const uint32_t cluster_iter = m_use_hierarchical_endpoint_codebooks ? (*pCluster_indices)[i] : i; + const uint32_t cluster_index = block_clusters[block_index][0]; + BASISU_FRONTEND_VERIFY(cluster_index == block_clusters[block_index][1]); - color_rgba cluster_etc_base_color(m_endpoint_cluster_etc_params[cluster_iter].m_color_unscaled[0]); - uint32_t cluster_etc_inten = m_endpoint_cluster_etc_params[cluster_iter].m_inten_table[0]; + const color_rgba* pSubblock_pixels = get_source_pixel_block(block_index).get_ptr(); + const uint32_t num_subblock_pixels = 16; - uint64_t total_err = 0; + uint64_t best_cluster_err = INT64_MAX; + uint32_t best_cluster_index = 0; - const uint32_t low_selector = 0;//subblock_etc_params_vec[j].m_low_selectors[0]; - const uint32_t high_selector = 3;//subblock_etc_params_vec[j].m_high_selectors[0]; - color_rgba subblock_colors[4]; - // Can't assign it here - may result in too much error when selector quant occurs - if (cluster_etc_inten > m_endpoint_cluster_etc_params[cluster_index].m_inten_table[0]) - { - total_err = INT64_MAX; - goto skip_cluster; - } + const uint32_t block_parent_endpoint_cluster_index = m_block_parent_endpoint_cluster.size() ? m_block_parent_endpoint_cluster[block_index] : 0; + const uint_vec* pCluster_indices = m_endpoint_clusters_within_each_parent_cluster.size() ? &m_endpoint_clusters_within_each_parent_cluster[block_parent_endpoint_cluster_index] : nullptr; - etc_block::get_block_colors5(subblock_colors, cluster_etc_base_color, cluster_etc_inten); - -#if 0 - for (uint32_t p = 0; p < num_subblock_pixels; p++) + const uint32_t total_clusters = m_use_hierarchical_endpoint_codebooks ? (uint32_t)pCluster_indices->size() : (uint32_t)m_endpoint_clusters.size(); + + for (uint32_t i = 0; i < total_clusters; i++) { - uint64_t best_err = UINT64_MAX; + const uint32_t cluster_iter = m_use_hierarchical_endpoint_codebooks ? (*pCluster_indices)[i] : i; - for (uint32_t r = low_selector; r <= high_selector; r++) + color_rgba cluster_etc_base_color(m_endpoint_cluster_etc_params[cluster_iter].m_color_unscaled[0]); + uint32_t cluster_etc_inten = m_endpoint_cluster_etc_params[cluster_iter].m_inten_table[0]; + + uint64_t total_err = 0; + + const uint32_t low_selector = 0;//subblock_etc_params_vec[j].m_low_selectors[0]; + const uint32_t high_selector = 3;//subblock_etc_params_vec[j].m_high_selectors[0]; + color_rgba subblock_colors[4]; + // Can't assign it here - may result in too much error when selector quant occurs + if (cluster_etc_inten > m_endpoint_cluster_etc_params[cluster_index].m_inten_table[0]) { - uint64_t err = color_distance(m_params.m_perceptual, pSubblock_pixels[p], subblock_colors[r], false); - best_err = minimum(best_err, err); - if (!best_err) - break; + total_err = INT64_MAX; + goto skip_cluster; } - total_err += best_err; - if (total_err > best_cluster_err) - break; - } // p -#else - if (m_params.m_perceptual) - { - if (!g_cpu_supports_sse41) + etc_block::get_block_colors5(subblock_colors, cluster_etc_base_color, cluster_etc_inten); + +#if 0 + for (uint32_t p = 0; p < num_subblock_pixels; p++) { - for (uint32_t p = 0; p < num_subblock_pixels; p++) + uint64_t best_err = UINT64_MAX; + + for (uint32_t r = low_selector; r <= high_selector; r++) { - uint64_t best_err = UINT64_MAX; + uint64_t err = color_distance(m_params.m_perceptual, pSubblock_pixels[p], subblock_colors[r], false); + best_err = minimum(best_err, err); + if (!best_err) + break; + } - for (uint32_t r = low_selector; r <= high_selector; r++) + total_err += best_err; + if (total_err > best_cluster_err) + break; + } // p +#else + if (m_params.m_perceptual) + { + if (!g_cpu_supports_sse41) + { + for (uint32_t p = 0; p < num_subblock_pixels; p++) { - uint64_t err = color_distance(true, pSubblock_pixels[p], subblock_colors[r], false); - best_err = minimum(best_err, err); - if (!best_err) + uint64_t best_err = UINT64_MAX; + + for (uint32_t r = low_selector; r <= high_selector; r++) + { + uint64_t err = color_distance(true, pSubblock_pixels[p], subblock_colors[r], false); + best_err = minimum(best_err, err); + if (!best_err) + break; + } + + total_err += best_err; + if (total_err > best_cluster_err) break; - } - - total_err += best_err; - if (total_err > best_cluster_err) - break; - } // p - } - else - { + } // p + } + else + { #if BASISU_SUPPORT_SSE - find_lowest_error_perceptual_rgb_4_N_sse41((int64_t*)&total_err, subblock_colors, pSubblock_pixels, num_subblock_pixels, best_cluster_err); + find_lowest_error_perceptual_rgb_4_N_sse41((int64_t*)&total_err, subblock_colors, pSubblock_pixels, num_subblock_pixels, best_cluster_err); #endif + } } - } - else - { - if (!g_cpu_supports_sse41) + else { - for (uint32_t p = 0; p < num_subblock_pixels; p++) + if (!g_cpu_supports_sse41) { - uint64_t best_err = UINT64_MAX; - - for (uint32_t r = low_selector; r <= high_selector; r++) + for (uint32_t p = 0; p < num_subblock_pixels; p++) { - uint64_t err = color_distance(false, pSubblock_pixels[p], subblock_colors[r], false); - best_err = minimum(best_err, err); - if (!best_err) + uint64_t best_err = UINT64_MAX; + + for (uint32_t r = low_selector; r <= high_selector; r++) + { + uint64_t err = color_distance(false, pSubblock_pixels[p], subblock_colors[r], false); + best_err = minimum(best_err, err); + if (!best_err) + break; + } + + total_err += best_err; + if (total_err > best_cluster_err) break; - } - - total_err += best_err; - if (total_err > best_cluster_err) - break; - } // p - } - else - { + } // p + } + else + { #if BASISU_SUPPORT_SSE - find_lowest_error_linear_rgb_4_N_sse41((int64_t*)&total_err, subblock_colors, pSubblock_pixels, num_subblock_pixels, best_cluster_err); + find_lowest_error_linear_rgb_4_N_sse41((int64_t*)&total_err, subblock_colors, pSubblock_pixels, num_subblock_pixels, best_cluster_err); #endif + } } - } #endif - skip_cluster: - if ((total_err < best_cluster_err) || - ((cluster_iter == cluster_index) && (total_err == best_cluster_err))) - { - best_cluster_err = total_err; - best_cluster_index = cluster_iter; - - if (!best_cluster_err) - break; - } - } // j - - best_cluster_indices[block_index] = best_cluster_index; + skip_cluster: + if ((total_err < best_cluster_err) || + ((cluster_iter == cluster_index) && (total_err == best_cluster_err))) + { + best_cluster_err = total_err; + best_cluster_index = cluster_iter; - } // block_index + if (!best_cluster_err) + break; + } + } // j + + best_cluster_indices[block_index] = best_cluster_index; + + } // block_index #ifndef __EMSCRIPTEN__ - } ); + }); #endif - - } // block_index_iter + + } // block_index_iter #ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->wait_for_all(); + m_params.m_pJob_pool->wait_for_all(); #endif + + } // use_cpu + + debug_printf("refine_endpoint_clusterization time: %3.3f secs\n", tm.get_elapsed_secs()); basisu::vector<typename basisu::vector<uint32_t> > optimized_endpoint_clusters(m_endpoint_clusters.size()); uint32_t total_subblocks_reassigned = 0; @@ -1647,51 +2061,91 @@ namespace basisu void basisu_frontend::create_initial_packed_texture() { debug_printf("create_initial_packed_texture\n"); + + interval_timer tm; + tm.start(); - const uint32_t N = 4096; - for (uint32_t block_index_iter = 0; block_index_iter < m_total_blocks; block_index_iter += N) + bool use_cpu = true; + + if ((m_params.m_pOpenCL_context) && (opencl_is_available())) { - const uint32_t first_index = block_index_iter; - const uint32_t last_index = minimum<uint32_t>(m_total_blocks, first_index + N); + basisu::vector<color_rgba> block_etc5_color_intens(m_total_blocks); + + for (uint32_t block_index = 0; block_index < m_total_blocks; block_index++) + { + uint32_t cluster0 = m_block_endpoint_clusters_indices[block_index][0]; + + const color_rgba& color_unscaled = m_endpoint_cluster_etc_params[cluster0].m_color_unscaled[0]; + uint32_t inten = m_endpoint_cluster_etc_params[cluster0].m_inten_table[0]; + + block_etc5_color_intens[block_index].set(color_unscaled.r, color_unscaled.g, color_unscaled.b, inten); + } + + bool status = opencl_determine_selectors(m_params.m_pOpenCL_context, block_etc5_color_intens.data(), + m_encoded_blocks.data(), + m_params.m_perceptual); + if (!status) + { + error_printf("basisu_frontend::create_initial_packed_texture: opencl_determine_selectors() failed! Using CPU.\n"); + m_params.m_pOpenCL_context = nullptr; + m_opencl_failed = true; + } + else + { + use_cpu = false; + } + } + + if (use_cpu) + { + const uint32_t N = 4096; + for (uint32_t block_index_iter = 0; block_index_iter < m_total_blocks; block_index_iter += N) + { + const uint32_t first_index = block_index_iter; + const uint32_t last_index = minimum<uint32_t>(m_total_blocks, first_index + N); #ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->add_job( [this, first_index, last_index] { + m_params.m_pJob_pool->add_job([this, first_index, last_index] { #endif - - for (uint32_t block_index = first_index; block_index < last_index; block_index++) - { - uint32_t cluster0 = m_block_endpoint_clusters_indices[block_index][0]; - uint32_t cluster1 = m_block_endpoint_clusters_indices[block_index][1]; - BASISU_FRONTEND_VERIFY(cluster0 == cluster1); - const color_rgba *pSource_pixels = get_source_pixel_block(block_index).get_ptr(); + for (uint32_t block_index = first_index; block_index < last_index; block_index++) + { + uint32_t cluster0 = m_block_endpoint_clusters_indices[block_index][0]; + uint32_t cluster1 = m_block_endpoint_clusters_indices[block_index][1]; + BASISU_FRONTEND_VERIFY(cluster0 == cluster1); - etc_block &blk = m_encoded_blocks[block_index]; + const color_rgba* pSource_pixels = get_source_pixel_block(block_index).get_ptr(); - color_rgba unscaled[2] = { m_endpoint_cluster_etc_params[cluster0].m_color_unscaled[0], m_endpoint_cluster_etc_params[cluster1].m_color_unscaled[0] }; - uint32_t inten[2] = { m_endpoint_cluster_etc_params[cluster0].m_inten_table[0], m_endpoint_cluster_etc_params[cluster1].m_inten_table[0] }; - - blk.set_block_color5(unscaled[0], unscaled[1]); - blk.set_flip_bit(true); + etc_block& blk = m_encoded_blocks[block_index]; - blk.set_inten_table(0, inten[0]); - blk.set_inten_table(1, inten[1]); + color_rgba unscaled[2] = { m_endpoint_cluster_etc_params[cluster0].m_color_unscaled[0], m_endpoint_cluster_etc_params[cluster1].m_color_unscaled[0] }; + uint32_t inten[2] = { m_endpoint_cluster_etc_params[cluster0].m_inten_table[0], m_endpoint_cluster_etc_params[cluster1].m_inten_table[0] }; - blk.determine_selectors(pSource_pixels, m_params.m_perceptual); - - } // block_index + blk.set_block_color5(unscaled[0], unscaled[1]); + blk.set_flip_bit(true); + + blk.set_inten_table(0, inten[0]); + blk.set_inten_table(1, inten[1]); + + blk.determine_selectors(pSource_pixels, m_params.m_perceptual); + + } // block_index #ifndef __EMSCRIPTEN__ - } ); + }); #endif - } // block_index_iter + } // block_index_iter #ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->wait_for_all(); + m_params.m_pJob_pool->wait_for_all(); #endif + } // use_cpu + m_orig_encoded_blocks = m_encoded_blocks; + + debug_printf("Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); } void basisu_frontend::compute_selector_clusters_within_each_parent_cluster() @@ -1739,8 +2193,7 @@ namespace basisu void basisu_frontend::generate_selector_clusters() { debug_printf("generate_selector_clusters\n"); - - typedef vec<16, float> vec16F; + typedef tree_vector_quant<vec16F> vec16F_clusterizer; vec16F_clusterizer::array_of_weighted_training_vecs training_vecs(m_total_blocks); @@ -1800,12 +2253,14 @@ namespace basisu uint32_t max_threads = 0; max_threads = m_params.m_multithreaded ? minimum<int>(std::thread::hardware_concurrency(), cMaxCodebookCreationThreads) : 0; + if (m_params.m_pJob_pool) + max_threads = minimum<int>((int)m_params.m_pJob_pool->get_total_threads(), max_threads); bool status = generate_hierarchical_codebook_threaded(selector_clusterizer, m_params.m_max_selector_clusters, m_use_hierarchical_selector_codebooks ? parent_codebook_size : 0, m_selector_cluster_block_indices, m_selector_parent_cluster_block_indices, - max_threads, m_params.m_pJob_pool); + max_threads, m_params.m_pJob_pool, false); BASISU_FRONTEND_VERIFY(status); if (m_use_hierarchical_selector_codebooks) @@ -1864,235 +2319,105 @@ namespace basisu { debug_printf("create_optimized_selector_codebook\n"); + interval_timer tm; + tm.start(); + const uint32_t total_selector_clusters = (uint32_t)m_selector_cluster_block_indices.size(); debug_printf("Total selector clusters (from m_selector_cluster_block_indices.size()): %u\n", (uint32_t)m_selector_cluster_block_indices.size()); m_optimized_cluster_selectors.resize(total_selector_clusters); + + uint32_t total_clusters_processed = 0; - if ((m_params.m_pGlobal_sel_codebook) && (!m_params.m_use_hybrid_selector_codebooks)) + // For each selector codebook entry, and for each of the 4x4 selectors, determine which selector minimizes the error across all the blocks that use that quantized selector. + const uint32_t N = 256; + for (uint32_t cluster_index_iter = 0; cluster_index_iter < total_selector_clusters; cluster_index_iter += N) { - uint32_t total_clusters_processed = 0; - - m_optimized_cluster_selector_global_cb_ids.resize(total_selector_clusters); + const uint32_t first_index = cluster_index_iter; + const uint32_t last_index = minimum<uint32_t>((uint32_t)total_selector_clusters, cluster_index_iter + N); - const uint32_t N = 256; - for (uint32_t cluster_index_iter = 0; cluster_index_iter < total_selector_clusters; cluster_index_iter += N) - { - const uint32_t first_index = cluster_index_iter; - const uint32_t last_index = minimum<uint32_t>((uint32_t)total_selector_clusters, cluster_index_iter + N); - -#ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->add_job( [this, first_index, last_index, &total_clusters_processed, &total_selector_clusters] { -#endif - - for (uint32_t cluster_index = first_index; cluster_index < last_index; cluster_index++) - { - const basisu::vector<uint32_t> &cluster_block_indices = m_selector_cluster_block_indices[cluster_index]; - - if (!cluster_block_indices.size()) - continue; - - etc_block_vec etc_blocks; - pixel_block_vec pixel_blocks; - - for (uint32_t cluster_block_index = 0; cluster_block_index < cluster_block_indices.size(); cluster_block_index++) - { - const uint32_t block_index = cluster_block_indices[cluster_block_index]; - - etc_blocks.push_back(m_encoded_blocks[block_index]); - - pixel_blocks.push_back(get_source_pixel_block(block_index)); - } - - uint32_t palette_index; - basist::etc1_global_palette_entry_modifier palette_modifier; - - #if 0 - m_params.m_pGlobal_sel_codebook->find_best_entry(etc_blocks.size(), pixel_blocks.get_ptr(), etc_blocks.get_ptr(), - palette_index, palette_modifier, - m_params.m_perceptual, 1 << m_params.m_num_global_sel_codebook_pal_bits, 1 << m_params.m_num_global_sel_codebook_mod_bits); - #else - etc1_global_selector_codebook_find_best_entry(*m_params.m_pGlobal_sel_codebook, - (uint32_t)etc_blocks.size(), &pixel_blocks[0], &etc_blocks[0], - palette_index, palette_modifier, - m_params.m_perceptual, 1 << m_params.m_num_global_sel_codebook_pal_bits, 1 << m_params.m_num_global_sel_codebook_mod_bits); - #endif - - m_optimized_cluster_selector_global_cb_ids[cluster_index].set(palette_index, palette_modifier); - - basist::etc1_selector_palette_entry pal_entry(m_params.m_pGlobal_sel_codebook->get_entry(palette_index, palette_modifier)); - - for (uint32_t y = 0; y < 4; y++) - for (uint32_t x = 0; x < 4; x++) - m_optimized_cluster_selectors[cluster_index].set_selector(x, y, pal_entry(x, y)); - - { - std::lock_guard<std::mutex> lock(m_lock); - - total_clusters_processed++; - if ((total_clusters_processed % 63) == 0) - debug_printf("Global selector palette optimization: %3.1f%% complete\n", total_clusters_processed * 100.0f / total_selector_clusters); - } - - } // cluster_index - -#ifndef __EMSCRIPTEN__ - } ); +#ifndef __EMSCRIPTEN__ + m_params.m_pJob_pool->add_job([this, first_index, last_index, &total_clusters_processed, &total_selector_clusters] { #endif - } // cluster_index_iter - -#ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->wait_for_all(); -#endif - } - else - { - const bool uses_hybrid_sel_codebook = ((m_params.m_pGlobal_sel_codebook) && (m_params.m_use_hybrid_selector_codebooks)); - if (uses_hybrid_sel_codebook) - { - m_selector_cluster_uses_global_cb.resize(total_selector_clusters); - m_optimized_cluster_selector_global_cb_ids.resize(total_selector_clusters); - } + for (uint32_t cluster_index = first_index; cluster_index < last_index; cluster_index++) + { + const basisu::vector<uint32_t>& cluster_block_indices = m_selector_cluster_block_indices[cluster_index]; - uint32_t total_clusters_processed = 0; + if (!cluster_block_indices.size()) + continue; - // For each selector codebook entry, and for each of the 4x4 selectors, determine which selector minimizes the error across all the blocks that use that quantized selector. + uint64_t overall_best_err = 0; - const uint32_t N = 256; - for (uint32_t cluster_index_iter = 0; cluster_index_iter < total_selector_clusters; cluster_index_iter += N) - { - const uint32_t first_index = cluster_index_iter; - const uint32_t last_index = minimum<uint32_t>((uint32_t)total_selector_clusters, cluster_index_iter + N); + uint64_t total_err[4][4][4]; + clear_obj(total_err); -#ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->add_job( [this, first_index, last_index, &uses_hybrid_sel_codebook, &total_clusters_processed, &total_selector_clusters] { -#endif - - for (uint32_t cluster_index = first_index; cluster_index < last_index; cluster_index++) + for (uint32_t cluster_block_index = 0; cluster_block_index < cluster_block_indices.size(); cluster_block_index++) { - const basisu::vector<uint32_t> &cluster_block_indices = m_selector_cluster_block_indices[cluster_index]; + const uint32_t block_index = cluster_block_indices[cluster_block_index]; - if (!cluster_block_indices.size()) - continue; + const etc_block& blk = m_encoded_blocks[block_index]; - uint64_t overall_best_err = 0; + color_rgba blk_colors[4]; + blk.get_block_colors(blk_colors, 0); for (uint32_t y = 0; y < 4; y++) { for (uint32_t x = 0; x < 4; x++) { - uint64_t best_err = UINT64_MAX; - uint32_t best_s = 0; + const color_rgba& orig_color = get_source_pixel_block(block_index)(x, y); - for (uint32_t s = 0; s < 4; s++) + if (m_params.m_perceptual) { - uint32_t total_err = 0; - - for (uint32_t cluster_block_index = 0; cluster_block_index < cluster_block_indices.size(); cluster_block_index++) - { - const uint32_t block_index = cluster_block_indices[cluster_block_index]; - - const etc_block &blk = m_encoded_blocks[block_index]; - - const color_rgba &orig_color = get_source_pixel_block(block_index)(x, y); - - color_rgba block_color; - blk.get_block_color(block_color, blk.get_subblock_index(x, y), s); - total_err += color_distance(m_params.m_perceptual, block_color, orig_color, false); - - if (total_err > best_err) - break; - - } // block_index - - if (total_err < best_err) - { - best_err = total_err; - best_s = s; - if (!best_err) - break; - } - - } // s - - m_optimized_cluster_selectors[cluster_index].set_selector(x, y, best_s); - - overall_best_err += best_err; - + for (uint32_t s = 0; s < 4; s++) + total_err[y][x][s] += color_distance(true, blk_colors[s], orig_color, false); + } + else + { + for (uint32_t s = 0; s < 4; s++) + total_err[y][x][s] += color_distance(false, blk_colors[s], orig_color, false); + } } // x } // y - if (uses_hybrid_sel_codebook) - { - etc_block_vec etc_blocks; - pixel_block_vec pixel_blocks; + } // cluster_block_index - for (uint32_t cluster_block_index = 0; cluster_block_index < cluster_block_indices.size(); cluster_block_index++) - { - const uint32_t block_index = cluster_block_indices[cluster_block_index]; - - etc_blocks.push_back(m_encoded_blocks[block_index]); - - pixel_blocks.push_back(get_source_pixel_block(block_index)); - } - - uint32_t palette_index; - basist::etc1_global_palette_entry_modifier palette_modifier; - - #if 0 - uint64_t best_global_cb_err = m_params.m_pGlobal_sel_codebook->find_best_entry(etc_blocks.size(), pixel_blocks.get_ptr(), etc_blocks.get_ptr(), - palette_index, palette_modifier, - m_params.m_perceptual, 1 << m_params.m_num_global_sel_codebook_pal_bits, 1 << m_params.m_num_global_sel_codebook_mod_bits); - #else - uint64_t best_global_cb_err = etc1_global_selector_codebook_find_best_entry(*m_params.m_pGlobal_sel_codebook, (uint32_t)etc_blocks.size(), &pixel_blocks[0], &etc_blocks[0], - palette_index, palette_modifier, - m_params.m_perceptual, 1 << m_params.m_num_global_sel_codebook_pal_bits, 1 << m_params.m_num_global_sel_codebook_mod_bits); - #endif + for (uint32_t y = 0; y < 4; y++) + { + for (uint32_t x = 0; x < 4; x++) + { + uint64_t best_err = total_err[y][x][0]; + uint8_t best_sel = 0; - if (best_global_cb_err <= overall_best_err * m_params.m_hybrid_codebook_quality_thresh) + for (uint32_t s = 1; s < 4; s++) { - m_selector_cluster_uses_global_cb[cluster_index] = true; - - m_optimized_cluster_selector_global_cb_ids[cluster_index].set(palette_index, palette_modifier); - - basist::etc1_selector_palette_entry pal_entry(m_params.m_pGlobal_sel_codebook->get_entry(palette_index, palette_modifier)); - - for (uint32_t y = 0; y < 4; y++) - for (uint32_t x = 0; x < 4; x++) - m_optimized_cluster_selectors[cluster_index].set_selector(x, y, pal_entry(x, y)); + if (total_err[y][x][s] < best_err) + { + best_err = total_err[y][x][s]; + best_sel = (uint8_t)s; + } } - else - { - m_optimized_cluster_selector_global_cb_ids[cluster_index].set(0, basist::etc1_global_palette_entry_modifier(0)); - m_selector_cluster_uses_global_cb[cluster_index] = false; - } - } + m_optimized_cluster_selectors[cluster_index].set_selector(x, y, best_sel); - if (uses_hybrid_sel_codebook) - { - std::lock_guard<std::mutex> lock(m_lock); - - total_clusters_processed++; - if ((total_clusters_processed % 63) == 0) - debug_printf("Global selector palette optimization: %3.1f%% complete\n", total_clusters_processed * 100.0f / total_selector_clusters); - } + overall_best_err += best_err; + } // x + } // y - } // cluster_index + } // cluster_index #ifndef __EMSCRIPTEN__ - } ); + }); #endif - } // cluster_index_iter + } // cluster_index_iter #ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->wait_for_all(); + m_params.m_pJob_pool->wait_for_all(); #endif - } // if (m_params.m_pGlobal_sel_codebook) + debug_printf("Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); if (m_params.m_debug_images) { @@ -2133,17 +2458,25 @@ namespace basisu } } + // For each block: Determine which quantized selectors best encode that block, given its quantized endpoints. + // Note that this method may leave some empty clusters (i.e. arrays with no block indices), including at the end. void basisu_frontend::find_optimal_selector_clusters_for_each_block() { debug_printf("find_optimal_selector_clusters_for_each_block\n"); - // Sanity checks - BASISU_FRONTEND_VERIFY(m_selector_cluster_block_indices.size() == m_optimized_cluster_selectors.size()); - for (uint32_t i = 0; i < m_selector_clusters_within_each_parent_cluster.size(); i++) + interval_timer tm; + tm.start(); + + if (m_params.m_validate) { - for (uint32_t j = 0; j < m_selector_clusters_within_each_parent_cluster[i].size(); j++) + // Sanity checks + BASISU_FRONTEND_VERIFY(m_selector_cluster_block_indices.size() == m_optimized_cluster_selectors.size()); + for (uint32_t i = 0; i < m_selector_clusters_within_each_parent_cluster.size(); i++) { - BASISU_FRONTEND_VERIFY(m_selector_clusters_within_each_parent_cluster[i][j] < m_optimized_cluster_selectors.size()); + for (uint32_t j = 0; j < m_selector_clusters_within_each_parent_cluster[i].size(); j++) + { + BASISU_FRONTEND_VERIFY(m_selector_clusters_within_each_parent_cluster[i][j] < m_optimized_cluster_selectors.size()); + } } } @@ -2151,20 +2484,120 @@ namespace basisu if (m_params.m_compression_level == 0) { - // Don't do anything, just leave the blocks in their original selector clusters. - for (uint32_t i = 0; i < m_selector_cluster_block_indices.size(); i++) + // Just leave the blocks in their original selector clusters. + for (uint32_t selector_cluster_index = 0; selector_cluster_index < m_selector_cluster_block_indices.size(); selector_cluster_index++) { - for (uint32_t j = 0; j < m_selector_cluster_block_indices[i].size(); j++) - m_block_selector_cluster_index[m_selector_cluster_block_indices[i][j]] = i; + for (uint32_t j = 0; j < m_selector_cluster_block_indices[selector_cluster_index].size(); j++) + { + const uint32_t block_index = m_selector_cluster_block_indices[selector_cluster_index][j]; + + m_block_selector_cluster_index[block_index] = selector_cluster_index; + + etc_block& blk = m_encoded_blocks[block_index]; + blk.set_raw_selector_bits(m_optimized_cluster_selectors[selector_cluster_index].get_raw_selector_bits()); + } } + + debug_printf("Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); + + return; } - else + + bool use_cpu = true; + + if ((m_params.m_pOpenCL_context) && m_use_hierarchical_selector_codebooks) { - // Note that this method may leave some empty clusters (i.e. arrays with no block indices), including at the end. - basisu::vector< basisu::vector<uint32_t> > new_cluster_indices(m_optimized_cluster_selectors.size()); + const uint32_t num_parent_clusters = m_selector_clusters_within_each_parent_cluster.size(); + + basisu::vector<fosc_selector_struct> selector_structs; + selector_structs.reserve(m_optimized_cluster_selectors.size()); + + uint_vec parent_selector_cluster_offsets(num_parent_clusters); + + uint_vec selector_cluster_indices; + selector_cluster_indices.reserve(m_optimized_cluster_selectors.size()); + + uint32_t cur_ofs = 0; + for (uint32_t parent_index = 0; parent_index < num_parent_clusters; parent_index++) + { + parent_selector_cluster_offsets[parent_index] = cur_ofs; + + for (uint32_t j = 0; j < m_selector_clusters_within_each_parent_cluster[parent_index].size(); j++) + { + const uint32_t selector_cluster_index = m_selector_clusters_within_each_parent_cluster[parent_index][j]; + + uint32_t sel_bits = 0; + for (uint32_t p = 0; p < 16; p++) + sel_bits |= (m_optimized_cluster_selectors[selector_cluster_index].get_selector(p & 3, p >> 2) << (p * 2)); + + selector_structs.enlarge(1)->m_packed_selectors = sel_bits; + + selector_cluster_indices.push_back(selector_cluster_index); + } + + cur_ofs += m_selector_clusters_within_each_parent_cluster[parent_index].size(); + } + + const uint32_t total_input_selectors = cur_ofs; - // For each block: Determine which quantized selectors best encode that block, given its quantized endpoints. + basisu::vector<fosc_block_struct> block_structs(m_total_blocks); + for (uint32_t i = 0; i < m_total_blocks; i++) + { + const uint32_t parent_selector_cluster = m_block_parent_selector_cluster[i]; + + const etc_block& blk = m_encoded_blocks[i]; + blk.unpack_color5(block_structs[i].m_etc_color5_inten, blk.get_base5_color(), false); + + block_structs[i].m_etc_color5_inten.a = (uint8_t)blk.get_inten_table(0); + block_structs[i].m_first_selector = parent_selector_cluster_offsets[parent_selector_cluster]; + block_structs[i].m_num_selectors = m_selector_clusters_within_each_parent_cluster[parent_selector_cluster].size(); + } + + uint_vec output_selector_cluster_indices(m_total_blocks); + + bool status = opencl_find_optimal_selector_clusters_for_each_block( + m_params.m_pOpenCL_context, + block_structs.data(), + total_input_selectors, + selector_structs.data(), + selector_cluster_indices.data(), + output_selector_cluster_indices.data(), + m_params.m_perceptual); + + if (!status) + { + error_printf("basisu_frontend::find_optimal_selector_clusters_for_each_block: opencl_find_optimal_selector_clusters_for_each_block() failed! Using CPU.\n"); + m_params.m_pOpenCL_context = nullptr; + m_opencl_failed = true; + } + else + { + for (uint32_t i = 0; i < m_selector_cluster_block_indices.size(); i++) + { + m_selector_cluster_block_indices[i].resize(0); + m_selector_cluster_block_indices[i].reserve(128); + } + + for (uint32_t block_index = 0; block_index < m_total_blocks; block_index++) + { + etc_block& blk = m_encoded_blocks[block_index]; + + uint32_t best_cluster_index = output_selector_cluster_indices[block_index]; + + blk.set_raw_selector_bits(m_optimized_cluster_selectors[best_cluster_index].get_raw_selector_bits()); + m_block_selector_cluster_index[block_index] = best_cluster_index; + + vector_ensure_element_is_valid(m_selector_cluster_block_indices, best_cluster_index); + m_selector_cluster_block_indices[best_cluster_index].push_back(block_index); + } + + use_cpu = false; + } + } + + if (use_cpu) + { basisu::vector<uint8_t> unpacked_optimized_cluster_selectors(16 * m_optimized_cluster_selectors.size()); for (uint32_t cluster_index = 0; cluster_index < m_optimized_cluster_selectors.size(); cluster_index++) { @@ -2176,36 +2609,74 @@ namespace basisu } } } - - const uint32_t N = 1024; + + const uint32_t N = 2048; for (uint32_t block_index_iter = 0; block_index_iter < m_total_blocks; block_index_iter += N) { const uint32_t first_index = block_index_iter; const uint32_t last_index = minimum<uint32_t>(m_total_blocks, first_index + N); -#ifndef __EMSCRIPTEN__ - m_params.m_pJob_pool->add_job( [this, first_index, last_index, &new_cluster_indices, &unpacked_optimized_cluster_selectors] { -#endif + #ifndef __EMSCRIPTEN__ + m_params.m_pJob_pool->add_job( [this, first_index, last_index, &unpacked_optimized_cluster_selectors] { + #endif + + int prev_best_cluster_index = 0; for (uint32_t block_index = first_index; block_index < last_index; block_index++) { - const color_rgba* pBlock_pixels = get_source_pixel_block(block_index).get_ptr(); - + const pixel_block& block = get_source_pixel_block(block_index); + etc_block& blk = m_encoded_blocks[block_index]; - + + if ((block_index > first_index) && (block == get_source_pixel_block(block_index - 1))) + { + blk.set_raw_selector_bits(m_optimized_cluster_selectors[prev_best_cluster_index].get_raw_selector_bits()); + + m_block_selector_cluster_index[block_index] = prev_best_cluster_index; + + continue; + } + + const color_rgba* pBlock_pixels = block.get_ptr(); + color_rgba trial_block_colors[4]; - blk.get_block_colors(trial_block_colors, 0); + blk.get_block_colors_etc1s(trial_block_colors); // precompute errors for the i-th block pixel and selector sel: [sel][i] uint32_t trial_errors[4][16]; - - for (int sel = 0; sel < 4; ++sel) + + if (m_params.m_perceptual) { - for (int i = 0; i < 16; ++i) - { - trial_errors[sel][i] = color_distance(m_params.m_perceptual, pBlock_pixels[i], trial_block_colors[sel], false); - } + for (uint32_t sel = 0; sel < 4; ++sel) + for (uint32_t i = 0; i < 16; ++i) + trial_errors[sel][i] = color_distance(true, pBlock_pixels[i], trial_block_colors[sel], false); } + else + { + for (uint32_t sel = 0; sel < 4; ++sel) + for (uint32_t i = 0; i < 16; ++i) + trial_errors[sel][i] = color_distance(false, pBlock_pixels[i], trial_block_colors[sel], false); + } + + // Compute the minimum possible errors (given any selectors) for pixels 0-15 + uint64_t min_possible_error_0_15 = 0; + for (uint32_t i = 0; i < 16; i++) + min_possible_error_0_15 += basisu::minimum(trial_errors[0][i], trial_errors[1][i], trial_errors[2][i], trial_errors[3][i]); + + // Compute the minimum possible errors (given any selectors) for pixels 4-15 + uint64_t min_possible_error_4_15 = 0; + for (uint32_t i = 4; i < 16; i++) + min_possible_error_4_15 += basisu::minimum(trial_errors[0][i], trial_errors[1][i], trial_errors[2][i], trial_errors[3][i]); + + // Compute the minimum possible errors (given any selectors) for pixels 8-15 + uint64_t min_possible_error_8_15 = 0; + for (uint32_t i = 8; i < 16; i++) + min_possible_error_8_15 += basisu::minimum(trial_errors[0][i], trial_errors[1][i], trial_errors[2][i], trial_errors[3][i]); + + // Compute the minimum possible errors (given any selectors) for pixels 12-15 + uint64_t min_possible_error_12_15 = 0; + for (uint32_t i = 12; i < 16; i++) + min_possible_error_12_15 += basisu::minimum(trial_errors[0][i], trial_errors[1][i], trial_errors[2][i], trial_errors[3][i]); uint64_t best_cluster_err = INT64_MAX; uint32_t best_cluster_index = 0; @@ -2215,7 +2686,7 @@ namespace basisu const uint32_t total_clusters = m_use_hierarchical_selector_codebooks ? (uint32_t)pCluster_indices->size() : (uint32_t)m_selector_cluster_block_indices.size(); -#if 0 + #if 0 for (uint32_t cluster_iter = 0; cluster_iter < total_clusters; cluster_iter++) { const uint32_t cluster_index = m_use_hierarchical_selector_codebooks ? (*pCluster_indices)[cluster_iter] : cluster_iter; @@ -2246,99 +2717,73 @@ namespace basisu early_out: ; } -#else - if (m_params.m_perceptual) - { - for (uint32_t cluster_iter = 0; cluster_iter < total_clusters; cluster_iter++) - { - const uint32_t cluster_index = m_use_hierarchical_selector_codebooks ? (*pCluster_indices)[cluster_iter] : cluster_iter; - //const etc_block& cluster_blk = m_optimized_cluster_selectors[cluster_index]; - - uint64_t trial_err = 0; - - for (int i = 0; i < 16; i++) - { - const uint32_t sel = unpacked_optimized_cluster_selectors[cluster_index * 16 + i]; - - trial_err += trial_errors[sel][i]; - if (trial_err > best_cluster_err) - goto early_out; - } - - if (trial_err < best_cluster_err) - { - best_cluster_err = trial_err; - best_cluster_index = cluster_index; - if (!best_cluster_err) - break; - } - - early_out: - ; - - } // cluster_iter - } - else + #else + for (uint32_t cluster_iter = 0; cluster_iter < total_clusters; cluster_iter++) { - for (uint32_t cluster_iter = 0; cluster_iter < total_clusters; cluster_iter++) - { - const uint32_t cluster_index = m_use_hierarchical_selector_codebooks ? (*pCluster_indices)[cluster_iter] : cluster_iter; - //const etc_block& cluster_blk = m_optimized_cluster_selectors[cluster_index]; + const uint32_t cluster_index = m_use_hierarchical_selector_codebooks ? (*pCluster_indices)[cluster_iter] : cluster_iter; + + const uint8_t* pSels = &unpacked_optimized_cluster_selectors[cluster_index * 16]; - uint64_t trial_err = 0; + uint64_t trial_err = (uint64_t)trial_errors[pSels[0]][0] + trial_errors[pSels[1]][1] + trial_errors[pSels[2]][2] + trial_errors[pSels[3]][3]; + if ((trial_err + min_possible_error_4_15) >= best_cluster_err) + continue; - for (int i = 0; i < 16; i++) - { - const uint32_t sel = unpacked_optimized_cluster_selectors[cluster_index * 16 + i]; + trial_err += (uint64_t)trial_errors[pSels[4]][4] + trial_errors[pSels[5]][5] + trial_errors[pSels[6]][6] + trial_errors[pSels[7]][7]; + if ((trial_err + min_possible_error_8_15) >= best_cluster_err) + continue; - trial_err += trial_errors[sel][i]; - if (trial_err > best_cluster_err) - goto early_out2; - } + trial_err += (uint64_t)trial_errors[pSels[8]][8] + trial_errors[pSels[9]][9] + trial_errors[pSels[10]][10] + trial_errors[pSels[11]][11]; + if ((trial_err + min_possible_error_12_15) >= best_cluster_err) + continue; - if (trial_err < best_cluster_err) - { - best_cluster_err = trial_err; - best_cluster_index = cluster_index; - if (!best_cluster_err) - break; - } + trial_err += (uint64_t)trial_errors[pSels[12]][12] + trial_errors[pSels[13]][13] + trial_errors[pSels[14]][14] + trial_errors[pSels[15]][15]; - early_out2: - ; + if (trial_err < best_cluster_err) + { + best_cluster_err = trial_err; + best_cluster_index = cluster_index; + if (best_cluster_err == min_possible_error_0_15) + break; + } - } // cluster_iter - } -#endif + } // cluster_iter + #endif blk.set_raw_selector_bits(m_optimized_cluster_selectors[best_cluster_index].get_raw_selector_bits()); m_block_selector_cluster_index[block_index] = best_cluster_index; - - { - std::lock_guard<std::mutex> lock(m_lock); - vector_ensure_element_is_valid(new_cluster_indices, best_cluster_index); - new_cluster_indices[best_cluster_index].push_back(block_index); - } + prev_best_cluster_index = best_cluster_index; } // block_index -#ifndef __EMSCRIPTEN__ + #ifndef __EMSCRIPTEN__ } ); -#endif + #endif } // block_index_iter -#ifndef __EMSCRIPTEN__ + #ifndef __EMSCRIPTEN__ m_params.m_pJob_pool->wait_for_all(); -#endif + #endif + + for (uint32_t i = 0; i < m_selector_cluster_block_indices.size(); i++) + { + m_selector_cluster_block_indices[i].resize(0); + m_selector_cluster_block_indices[i].reserve(128); + } - m_selector_cluster_block_indices.swap(new_cluster_indices); - } + for (uint32_t block_index = 0; block_index < m_total_blocks; block_index++) + { + const uint32_t best_cluster_index = m_block_selector_cluster_index[block_index]; - for (uint32_t i = 0; i < m_selector_cluster_block_indices.size(); i++) - vector_sort(m_selector_cluster_block_indices[i]); + vector_ensure_element_is_valid(m_selector_cluster_block_indices, best_cluster_index); + m_selector_cluster_block_indices[best_cluster_index].push_back(block_index); + } + + } // if (use_cpu) + + debug_printf("Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); } // TODO: Remove old ETC1 specific stuff, and thread this. @@ -2837,7 +3282,81 @@ namespace basisu //debug_printf("validate_output: %u\n", validate_output()); } - + + // Endpoint clusterization hierarchy integrity checker. + // Note this doesn't check for empty clusters. + bool basisu_frontend::validate_endpoint_cluster_hierarchy(bool ensure_clusters_have_same_parents) const + { + if (!m_endpoint_parent_clusters.size()) + return true; + + int_vec subblock_parent_indices(m_total_blocks * 2); + subblock_parent_indices.set_all(-1); + + int_vec subblock_cluster_indices(m_total_blocks * 2); + subblock_cluster_indices.set_all(-1); + + for (uint32_t parent_index = 0; parent_index < m_endpoint_parent_clusters.size(); parent_index++) + { + for (uint32_t i = 0; i < m_endpoint_parent_clusters[parent_index].size(); i++) + { + uint32_t subblock_index = m_endpoint_parent_clusters[parent_index][i]; + if (subblock_index >= m_total_blocks * 2) + return false; + + // If the endpoint cluster lives in more than one parent node, that's wrong. + if (subblock_parent_indices[subblock_index] != -1) + return false; + + subblock_parent_indices[subblock_index] = parent_index; + } + } + + // Make sure all endpoint clusters are present in the parent cluster. + for (uint32_t i = 0; i < subblock_parent_indices.size(); i++) + { + if (subblock_parent_indices[i] == -1) + return false; + } + + for (uint32_t cluster_index = 0; cluster_index < m_endpoint_clusters.size(); cluster_index++) + { + int parent_index = 0; + + for (uint32_t i = 0; i < m_endpoint_clusters[cluster_index].size(); i++) + { + uint32_t subblock_index = m_endpoint_clusters[cluster_index][i]; + if (subblock_index >= m_total_blocks * 2) + return false; + + if (subblock_cluster_indices[subblock_index] != -1) + return false; + + subblock_cluster_indices[subblock_index] = cluster_index; + + // There are transformations on the endpoint clusters that can break the strict tree requirement + if (ensure_clusters_have_same_parents) + { + // Make sure all the subblocks are in the same parent cluster + if (!i) + parent_index = subblock_parent_indices[subblock_index]; + else if (subblock_parent_indices[subblock_index] != parent_index) + return false; + } + } + } + + // Make sure all endpoint clusters are present in the parent cluster. + for (uint32_t i = 0; i < subblock_cluster_indices.size(); i++) + { + if (subblock_cluster_indices[i] == -1) + return false; + } + + return true; + } + + // This is very slow and only intended for debugging/development. It's enabled using the "-validate_etc1s" command line option. bool basisu_frontend::validate_output() const { debug_printf("validate_output\n"); @@ -2889,29 +3408,7 @@ namespace basisu CHECK(rdo_output_block.get_base5_color() == blk.get_base5_color()); CHECK(rdo_output_block.get_delta3_color() == blk.get_delta3_color()); CHECK(rdo_output_block.get_raw_selector_bits() == blk.get_raw_selector_bits()); - - if (m_params.m_pGlobal_sel_codebook) - { - bool used_global_cb = true; - if (m_params.m_use_hybrid_selector_codebooks) - used_global_cb = m_selector_cluster_uses_global_cb[selector_cluster_index]; - - if (used_global_cb) - { - basist::etc1_global_selector_codebook_entry_id pal_id(get_selector_cluster_global_selector_entry_ids()[selector_cluster_index]); - - basist::etc1_selector_palette_entry pal_entry(m_params.m_pGlobal_sel_codebook->get_entry(pal_id)); - - for (uint32_t y = 0; y < 4; y++) - { - for (uint32_t x = 0; x < 4; x++) - { - CHECK(pal_entry(x, y) == blk.get_selector(x, y)); - } - } - } - } - + #undef CHECK } diff --git a/thirdparty/basis_universal/encoder/basisu_frontend.h b/thirdparty/basis_universal/encoder/basisu_frontend.h index 4ff6d40466..cda73f3984 100644 --- a/thirdparty/basis_universal/encoder/basisu_frontend.h +++ b/thirdparty/basis_universal/encoder/basisu_frontend.h @@ -16,12 +16,14 @@ #include "basisu_enc.h" #include "basisu_etc.h" #include "basisu_gpu_texture.h" -#include "basisu_global_selector_palette_helpers.h" #include "../transcoder/basisu_file_headers.h" #include "../transcoder/basisu_transcoder.h" namespace basisu { + struct opencl_context; + typedef opencl_context* opencl_context_ptr; + struct vec2U { uint32_t m_comps[2]; @@ -51,7 +53,8 @@ namespace basisu m_use_hierarchical_endpoint_codebooks(false), m_use_hierarchical_selector_codebooks(false), m_num_endpoint_codebook_iterations(0), - m_num_selector_codebook_iterations(0) + m_num_selector_codebook_iterations(0), + m_opencl_failed(false) { } @@ -73,19 +76,12 @@ namespace basisu m_perceptual(true), m_debug_stats(false), m_debug_images(false), - m_dump_endpoint_clusterization(true), m_validate(false), m_multithreaded(false), m_disable_hierarchical_endpoint_codebooks(false), - m_pGlobal_sel_codebook(NULL), - m_num_global_sel_codebook_pal_bits(0), - m_num_global_sel_codebook_mod_bits(0), - m_use_hybrid_selector_codebooks(false), - m_hybrid_codebook_quality_thresh(0.0f), m_tex_type(basist::cBASISTexType2D), - m_pGlobal_codebooks(nullptr), - + m_pOpenCL_context(nullptr), m_pJob_pool(nullptr) { } @@ -106,13 +102,10 @@ namespace basisu bool m_multithreaded; bool m_disable_hierarchical_endpoint_codebooks; - const basist::etc1_global_selector_codebook *m_pGlobal_sel_codebook; - uint32_t m_num_global_sel_codebook_pal_bits; - uint32_t m_num_global_sel_codebook_mod_bits; - bool m_use_hybrid_selector_codebooks; - float m_hybrid_codebook_quality_thresh; basist::basis_texture_type m_tex_type; const basist::basisu_lowlevel_etc1s_transcoder *m_pGlobal_codebooks; + + opencl_context_ptr m_pOpenCL_context; job_pool *m_pJob_pool; }; @@ -150,10 +143,7 @@ namespace basisu uint32_t get_total_selector_clusters() const { return static_cast<uint32_t>(m_selector_cluster_block_indices.size()); } uint32_t get_block_selector_cluster_index(uint32_t block_index) const { return m_block_selector_cluster_index[block_index]; } const etc_block &get_selector_cluster_selector_bits(uint32_t cluster_index) const { return m_optimized_cluster_selectors[cluster_index]; } - - const basist::etc1_global_selector_codebook_entry_id_vec &get_selector_cluster_global_selector_entry_ids() const { return m_optimized_cluster_selector_global_cb_ids; } - const bool_vec &get_selector_cluster_uses_global_cb_vec() const { return m_selector_cluster_uses_global_cb; } - + // Returns block indices using each selector cluster const uint_vec &get_selector_cluster_block_indices(uint32_t selector_cluster_index) const { return m_selector_cluster_block_indices[selector_cluster_index]; } @@ -161,6 +151,8 @@ namespace basisu void reoptimize_remapped_endpoints(const uint_vec &new_block_endpoints, int_vec &old_to_new_endpoint_cluster_indices, bool optimize_final_codebook, uint_vec *pBlock_selector_indices = nullptr); + bool get_opencl_failed() const { return m_opencl_failed; } + private: params m_params; uint32_t m_total_blocks; @@ -192,13 +184,14 @@ namespace basisu vec6F_quantizer m_endpoint_clusterizer; // For each endpoint cluster: An array of which subblock indices (block_index*2+subblock) are located in that cluster. - // Array of block indices for each endpoint cluster basisu::vector<uint_vec> m_endpoint_clusters; - // Array of block indices for each parent endpoint cluster + // Array of subblock indices for each parent endpoint cluster + // Note: Initially, each endpoint cluster will only live in a single parent cluster, in a shallow tree. + // As the endpoint clusters are manipulated this constraint gets broken. basisu::vector<uint_vec> m_endpoint_parent_clusters; - // Each block's parent cluster index + // Each block's parent endpoint cluster index uint8_vec m_block_parent_endpoint_cluster; // Array of endpoint cluster indices for each parent endpoint cluster @@ -295,10 +288,7 @@ namespace basisu // Array of selector cluster indices for each parent selector cluster basisu::vector<uint_vec> m_selector_clusters_within_each_parent_cluster; - - basist::etc1_global_selector_codebook_entry_id_vec m_optimized_cluster_selector_global_cb_ids; - bool_vec m_selector_cluster_uses_global_cb; - + // Each block's selector cluster index basisu::vector<uint32_t> m_block_selector_cluster_index; @@ -330,6 +320,8 @@ namespace basisu std::mutex m_lock; + bool m_opencl_failed; + //----------------------------------------------------------------------------- void init_etc1_images(); @@ -351,6 +343,7 @@ namespace basisu void find_optimal_selector_clusters_for_each_block(); uint32_t refine_block_endpoints_given_selectors(); void finalize(); + bool validate_endpoint_cluster_hierarchy(bool ensure_clusters_have_same_parents) const; bool validate_output() const; void introduce_special_selector_clusters(); void optimize_selector_codebook(); diff --git a/thirdparty/basis_universal/encoder/basisu_global_selector_palette_helpers.cpp b/thirdparty/basis_universal/encoder/basisu_global_selector_palette_helpers.cpp deleted file mode 100644 index 102fc24980..0000000000 --- a/thirdparty/basis_universal/encoder/basisu_global_selector_palette_helpers.cpp +++ /dev/null @@ -1,71 +0,0 @@ -// basiu_global_selector_palette_helpers.cpp -// Copyright (C) 2019 Binomial LLC. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -#include "basisu_global_selector_palette_helpers.h" - -namespace basisu -{ - uint64_t etc1_global_selector_codebook_find_best_entry(const basist::etc1_global_selector_codebook &codebook, - uint32_t num_src_pixel_blocks, const pixel_block *pSrc_pixel_blocks, const etc_block *pBlock_endpoints, - uint32_t &palette_index, basist::etc1_global_palette_entry_modifier &palette_modifier, - bool perceptual, uint32_t max_pal_entries, uint32_t max_modifiers) - { - uint64_t best_err = UINT64_MAX; - uint32_t best_pal_index = 0; - basist::etc1_global_palette_entry_modifier best_pal_modifier; - - if (!max_pal_entries) - max_pal_entries = codebook.size(); - - if (!max_modifiers) - max_modifiers = basist::etc1_global_palette_entry_modifier::cTotalValues; - - for (uint32_t pal_index = 0; pal_index < max_pal_entries; pal_index++) - { - for (uint32_t mod_index = 0; mod_index < max_modifiers; mod_index++) - { - const basist::etc1_global_palette_entry_modifier pal_modifier(mod_index); - - const basist::etc1_selector_palette_entry pal_entry(codebook.get_entry(pal_index, pal_modifier)); - - uint64_t trial_err = 0; - for (uint32_t block_index = 0; block_index < num_src_pixel_blocks; block_index++) - { - etc_block trial_block(pBlock_endpoints[block_index]); - - for (uint32_t y = 0; y < 4; y++) - for (uint32_t x = 0; x < 4; x++) - trial_block.set_selector(x, y, pal_entry(x, y)); - - trial_err += trial_block.evaluate_etc1_error(reinterpret_cast<const basisu::color_rgba *>(pSrc_pixel_blocks[block_index].get_ptr()), perceptual); - if (trial_err >= best_err) - break; - } - - if (trial_err < best_err) - { - best_err = trial_err; - best_pal_index = pal_index; - best_pal_modifier = pal_modifier; - } - } // mod_index - } // pal_index - - palette_index = best_pal_index; - palette_modifier = best_pal_modifier; - - return best_err; - } - -} // namespace basisu diff --git a/thirdparty/basis_universal/encoder/basisu_global_selector_palette_helpers.h b/thirdparty/basis_universal/encoder/basisu_global_selector_palette_helpers.h deleted file mode 100644 index 7c35439df8..0000000000 --- a/thirdparty/basis_universal/encoder/basisu_global_selector_palette_helpers.h +++ /dev/null @@ -1,46 +0,0 @@ -// File: basisu_global_selector_palette_helpers.h -// Copyright (C) 2019 Binomial LLC. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -#pragma once - -#include "../transcoder/basisu.h" -#include "basisu_etc.h" -#include "../transcoder/basisu_global_selector_palette.h" - -namespace basisu -{ - const uint32_t cPixelBlockWidth = 4; - const uint32_t cPixelBlockHeight = 4; - const uint32_t cPixelBlockTotalPixels = cPixelBlockWidth * cPixelBlockHeight; - - struct pixel_block - { - color_rgba m_pixels[cPixelBlockHeight][cPixelBlockWidth]; // [y][x] - - const color_rgba &operator() (uint32_t x, uint32_t y) const { assert((x < cPixelBlockWidth) && (y < cPixelBlockHeight)); return m_pixels[y][x]; } - color_rgba &operator() (uint32_t x, uint32_t y) { assert((x < cPixelBlockWidth) && (y < cPixelBlockHeight)); return m_pixels[y][x]; } - - const color_rgba *get_ptr() const { return &m_pixels[0][0]; } - color_rgba *get_ptr() { return &m_pixels[0][0]; } - - void clear() { clear_obj(*this); } - }; - typedef basisu::vector<pixel_block> pixel_block_vec; - - uint64_t etc1_global_selector_codebook_find_best_entry(const basist::etc1_global_selector_codebook &codebook, - uint32_t num_src_pixel_blocks, const pixel_block *pSrc_pixel_blocks, const etc_block *pBlock_endpoints, - uint32_t &palette_index, basist::etc1_global_palette_entry_modifier &palette_modifier, - bool perceptual, uint32_t max_pal_entries, uint32_t max_modifiers); - -} // namespace basisu diff --git a/thirdparty/basis_universal/encoder/basisu_gpu_texture.cpp b/thirdparty/basis_universal/encoder/basisu_gpu_texture.cpp index 3f9fb67bdd..dec769d5ac 100644 --- a/thirdparty/basis_universal/encoder/basisu_gpu_texture.cpp +++ b/thirdparty/basis_universal/encoder/basisu_gpu_texture.cpp @@ -15,7 +15,9 @@ #include "basisu_gpu_texture.h" #include "basisu_enc.h" #include "basisu_pvrtc1_4.h" +#if BASISU_USE_ASTC_DECOMPRESS #include "basisu_astc_decomp.h" +#endif #include "basisu_bc7enc.h" namespace basisu @@ -1150,8 +1152,12 @@ namespace basisu } case texture_format::cASTC4x4: { +#if BASISU_USE_ASTC_DECOMPRESS const bool astc_srgb = false; basisu_astc::astc::decompress(reinterpret_cast<uint8_t*>(pPixels), static_cast<const uint8_t*>(pBlock), astc_srgb, 4, 4); +#else + memset(pPixels, 255, 16 * sizeof(color_rgba)); +#endif break; } case texture_format::cATC_RGB: @@ -1498,6 +1504,8 @@ namespace basisu header.m_pixelWidth = width; header.m_pixelHeight = height; + + header.m_glTypeSize = 1; header.m_glInternalFormat = internal_fmt; header.m_glBaseInternalFormat = base_internal_fmt; diff --git a/thirdparty/basis_universal/encoder/basisu_kernels_declares.h b/thirdparty/basis_universal/encoder/basisu_kernels_declares.h index e24bdd7978..b03e2ea6e8 100644 --- a/thirdparty/basis_universal/encoder/basisu_kernels_declares.h +++ b/thirdparty/basis_universal/encoder/basisu_kernels_declares.h @@ -22,4 +22,6 @@ void CPPSPMD_NAME(find_selectors_linear_rgb_4_N)(int64_t* pDistance, uint8_t* pS void CPPSPMD_NAME(find_lowest_error_perceptual_rgb_4_N)(int64_t* pDistance, const basisu::color_rgba* pBlock_colors, const basisu::color_rgba* pSrc_pixels, uint32_t n, int64_t early_out_error); void CPPSPMD_NAME(find_lowest_error_linear_rgb_4_N)(int64_t* pDistance, const basisu::color_rgba* pBlock_colors, const basisu::color_rgba* pSrc_pixels, uint32_t n, int64_t early_out_error); + +void CPPSPMD_NAME(update_covar_matrix_16x16)(uint32_t num_vecs, const void* pWeighted_vecs, const void *pOrigin, const uint32_t* pVec_indices, void *pMatrix16x16); #endif diff --git a/thirdparty/basis_universal/encoder/basisu_kernels_imp.h b/thirdparty/basis_universal/encoder/basisu_kernels_imp.h index 046880517b..dcf1ce069a 100644 --- a/thirdparty/basis_universal/encoder/basisu_kernels_imp.h +++ b/thirdparty/basis_universal/encoder/basisu_kernels_imp.h @@ -548,6 +548,65 @@ namespace CPPSPMD_NAME(basisu_kernels_namespace) } }; + struct update_covar_matrix_16x16 : spmd_kernel + { + void _call( + uint32_t num_vecs, const void* pWeighted_vecs_void, const void* pOrigin_void, const uint32_t* pVec_indices, void* pMatrix16x16_void) + { + const std::pair<vec16F, uint64_t>* pWeighted_vecs = static_cast< const std::pair<vec16F, uint64_t> *>(pWeighted_vecs_void); + + const float* pOrigin = static_cast<const float*>(pOrigin_void); + vfloat org0 = loadu_linear_all(pOrigin), org1 = loadu_linear_all(pOrigin + 4), org2 = loadu_linear_all(pOrigin + 8), org3 = loadu_linear_all(pOrigin + 12); + + vfloat mat[16][4]; + vfloat vzero(zero_vfloat()); + + for (uint32_t i = 0; i < 16; i++) + { + store_all(mat[i][0], vzero); + store_all(mat[i][1], vzero); + store_all(mat[i][2], vzero); + store_all(mat[i][3], vzero); + } + + for (uint32_t k = 0; k < num_vecs; k++) + { + const uint32_t vec_index = pVec_indices[k]; + + const float* pW = pWeighted_vecs[vec_index].first.get_ptr(); + vfloat weight((float)pWeighted_vecs[vec_index].second); + + vfloat vec[4] = { loadu_linear_all(pW) - org0, loadu_linear_all(pW + 4) - org1, loadu_linear_all(pW + 8) - org2, loadu_linear_all(pW + 12) - org3 }; + + vfloat wvec0 = vec[0] * weight, wvec1 = vec[1] * weight, wvec2 = vec[2] * weight, wvec3 = vec[3] * weight; + + for (uint32_t j = 0; j < 16; j++) + { + vfloat vx = ((const float*)vec)[j]; + + store_all(mat[j][0], mat[j][0] + vx * wvec0); + store_all(mat[j][1], mat[j][1] + vx * wvec1); + store_all(mat[j][2], mat[j][2] + vx * wvec2); + store_all(mat[j][3], mat[j][3] + vx * wvec3); + + } // j + + } // k + + float* pMatrix = static_cast<float*>(pMatrix16x16_void); + + float* pDst = pMatrix; + for (uint32_t i = 0; i < 16; i++) + { + storeu_linear_all(pDst, mat[i][0]); + storeu_linear_all(pDst + 4, mat[i][1]); + storeu_linear_all(pDst + 8, mat[i][2]); + storeu_linear_all(pDst + 12, mat[i][3]); + pDst += 16; + } + } + }; + } // namespace using namespace CPPSPMD_NAME(basisu_kernels_namespace); @@ -582,3 +641,7 @@ void CPPSPMD_NAME(find_lowest_error_linear_rgb_4_N)(int64_t* pDistance, const co spmd_call< find_lowest_error_linear_rgb_4_N >(pDistance, pBlock_colors, pSrc_pixels, n, early_out_error); } +void CPPSPMD_NAME(update_covar_matrix_16x16)(uint32_t num_vecs, const void* pWeighted_vecs, const void* pOrigin, const uint32_t *pVec_indices, void* pMatrix16x16) +{ + spmd_call < update_covar_matrix_16x16 >(num_vecs, pWeighted_vecs, pOrigin, pVec_indices, pMatrix16x16); +} diff --git a/thirdparty/basis_universal/encoder/basisu_kernels_sse.cpp b/thirdparty/basis_universal/encoder/basisu_kernels_sse.cpp index 12d2321f20..4f15a5a12b 100644 --- a/thirdparty/basis_universal/encoder/basisu_kernels_sse.cpp +++ b/thirdparty/basis_universal/encoder/basisu_kernels_sse.cpp @@ -32,7 +32,7 @@ #error SSE4.1/SSE3/SSE4.2/SSSE3 cannot be enabled to use this file #endif #else - #if !__SSE4_1__ || !__SSE3__ || __SSE4_2__ || !__SSSE3__ + #if !__SSE4_1__ || !__SSE3__ || !__SSSE3__ #error Please check your compiler options #endif #endif diff --git a/thirdparty/basis_universal/encoder/basisu_miniz.h b/thirdparty/basis_universal/encoder/basisu_miniz.h index 8627abe893..18de997232 100644 --- a/thirdparty/basis_universal/encoder/basisu_miniz.h +++ b/thirdparty/basis_universal/encoder/basisu_miniz.h @@ -76,6 +76,14 @@ #define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1 #endif +// Using unaligned loads and stores causes errors when using UBSan. Jam it off. +#if defined(__has_feature) +#if __has_feature(undefined_behavior_sanitizer) +#undef MINIZ_USE_UNALIGNED_LOADS_AND_STORES +#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 0 +#endif +#endif + #if defined(_M_X64) || defined(_WIN64) || defined(__MINGW64__) || defined(_LP64) || defined(__LP64__) || defined(__ia64__) || defined(__x86_64__) // Set MINIZ_HAS_64BIT_REGISTERS to 1 if operations on 64-bit integers are reasonably fast (and don't involve compiler generated calls to helper functions). #define MINIZ_HAS_64BIT_REGISTERS 1 @@ -236,6 +244,7 @@ int mz_inflateInit2(mz_streamp pStream, int window_bits); // MZ_BUF_ERROR if no forward progress is possible because the input buffer is empty but the inflater needs more input to continue, or if the output buffer is not large enough. Call mz_inflate() again // with more input data, or with more room in the output buffer (except when using single call decompression, described above). int mz_inflate(mz_streamp pStream, int flush); +int mz_inflate2(mz_streamp pStream, int flush, int adler32_checking); // Deinitializes a decompressor. int mz_inflateEnd(mz_streamp pStream); @@ -880,10 +889,10 @@ int mz_inflateInit(mz_streamp pStream) return mz_inflateInit2(pStream, MZ_DEFAULT_WINDOW_BITS); } -int mz_inflate(mz_streamp pStream, int flush) +int mz_inflate2(mz_streamp pStream, int flush, int adler32_checking) { inflate_state* pState; - mz_uint n, first_call, decomp_flags = TINFL_FLAG_COMPUTE_ADLER32; + mz_uint n, first_call, decomp_flags = adler32_checking ? TINFL_FLAG_COMPUTE_ADLER32 : 0; size_t in_bytes, out_bytes, orig_avail_in; tinfl_status status; @@ -971,6 +980,11 @@ int mz_inflate(mz_streamp pStream, int flush) return ((status == TINFL_STATUS_DONE) && (!pState->m_dict_avail)) ? MZ_STREAM_END : MZ_OK; } +int mz_inflate(mz_streamp pStream, int flush) +{ + return mz_inflate2(pStream, flush, MZ_TRUE); +} + int mz_inflateEnd(mz_streamp pStream) { if (!pStream) @@ -1348,7 +1362,8 @@ tinfl_status tinfl_decompress(tinfl_decompressor *r, const mz_uint8 *pIn_buf_nex common_exit: r->m_num_bits = num_bits; r->m_bit_buf = bit_buf; r->m_dist = dist; r->m_counter = counter; r->m_num_extra = num_extra; r->m_dist_from_out_buf_start = dist_from_out_buf_start; *pIn_buf_size = pIn_buf_cur - pIn_buf_next; *pOut_buf_size = pOut_buf_cur - pOut_buf_next; - if ((decomp_flags & (TINFL_FLAG_PARSE_ZLIB_HEADER | TINFL_FLAG_COMPUTE_ADLER32)) && (status >= 0)) + //if ((decomp_flags & (TINFL_FLAG_PARSE_ZLIB_HEADER | TINFL_FLAG_COMPUTE_ADLER32)) && (status >= 0)) + if ((decomp_flags & TINFL_FLAG_COMPUTE_ADLER32) && (status >= 0)) { const mz_uint8 *ptr = pOut_buf_next; size_t buf_len = *pOut_buf_size; mz_uint32 i, s1 = r->m_check_adler32 & 0xffff, s2 = r->m_check_adler32 >> 16; size_t block_len = buf_len % 5552; @@ -1362,7 +1377,9 @@ common_exit: for ( ; i < block_len; ++i) s1 += *ptr++, s2 += s1; s1 %= 65521U, s2 %= 65521U; buf_len -= block_len; block_len = 5552; } - r->m_check_adler32 = (s2 << 16) + s1; if ((status == TINFL_STATUS_DONE) && (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) && (r->m_check_adler32 != r->m_z_adler32)) status = TINFL_STATUS_ADLER32_MISMATCH; + r->m_check_adler32 = (s2 << 16) + s1; + if ((status == TINFL_STATUS_DONE) && (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) && (r->m_check_adler32 != r->m_z_adler32)) + status = TINFL_STATUS_ADLER32_MISMATCH; } return status; } @@ -2479,7 +2496,7 @@ void *tdefl_write_image_to_png_file_in_memory_ex(const void *pImage, int w, int // write dummy header for (z = 41; z; --z) tdefl_output_buffer_putter(&z, 1, &out_buf); // compress image data - tdefl_init(pComp, tdefl_output_buffer_putter, &out_buf, s_tdefl_png_num_probes[MZ_MIN(10, level)] | TDEFL_WRITE_ZLIB_HEADER); + tdefl_init(pComp, tdefl_output_buffer_putter, &out_buf, s_tdefl_png_num_probes[MZ_MIN(10, level)] | TDEFL_WRITE_ZLIB_HEADER | (level <= 3 ? TDEFL_GREEDY_PARSING_FLAG : 0)); for (y = 0; y < h; ++y) { tdefl_compress_buffer(pComp, &z, 1, TDEFL_NO_FLUSH); tdefl_compress_buffer(pComp, (mz_uint8*)pImage + (flip ? (h - 1 - y) : y) * bpl, bpl, TDEFL_NO_FLUSH); } if (tdefl_compress_buffer(pComp, NULL, 0, TDEFL_FINISH) != TDEFL_STATUS_DONE) { MZ_FREE(pComp); MZ_FREE(out_buf.m_pBuf); return NULL; } // write real header diff --git a/thirdparty/basis_universal/encoder/basisu_ocl_kernels.h b/thirdparty/basis_universal/encoder/basisu_ocl_kernels.h new file mode 100644 index 0000000000..46db61bf18 --- /dev/null +++ b/thirdparty/basis_universal/encoder/basisu_ocl_kernels.h @@ -0,0 +1,1439 @@ +unsigned char ocl_kernels_cl[] = { + 0x2f, 0x2f, 0x23, 0x64, 0x65, 0x66, 0x69, 0x6e, 0x65, 0x20, 0x5f, 0x44, 0x45, 0x42, 0x55, 0x47, 0x0d, 0x0a, 0x0d, 0x0a, 0x23, 0x69, 0x66, 0x6e, 0x64, 0x65, 0x66, 0x20, 0x4e, 0x55, 0x4c, 0x4c, + 0x0d, 0x0a, 0x09, 0x23, 0x64, 0x65, 0x66, 0x69, 0x6e, 0x65, 0x20, 0x4e, 0x55, 0x4c, 0x4c, 0x20, 0x30, 0x4c, 0x0d, 0x0a, 0x23, 0x65, 0x6e, 0x64, 0x69, 0x66, 0x0d, 0x0a, 0x0d, 0x0a, 0x74, 0x79, + 0x70, 0x65, 0x64, 0x65, 0x66, 0x20, 0x63, 0x68, 0x61, 0x72, 0x20, 0x69, 0x6e, 0x74, 0x38, 0x5f, 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All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +#include "basisu_opencl.h" + +// If 1, the kernel source code will come from encoders/ocl_kernels.h. Otherwise, it will be read from the "ocl_kernels.cl" file in the current directory (for development). +#define BASISU_USE_OCL_KERNELS_HEADER (1) +#define BASISU_OCL_KERNELS_FILENAME "ocl_kernels.cl" + +#if BASISU_SUPPORT_OPENCL + +#include "basisu_enc.h" + +// We only use OpenCL v1.2 or less. +#define CL_TARGET_OPENCL_VERSION 120 + +#ifdef __APPLE__ +#include <OpenCL/opencl.h> +#else +#include <CL/cl.h> +#endif + +#define BASISU_OPENCL_ASSERT_ON_ANY_ERRORS (1) + +namespace basisu +{ +#if BASISU_USE_OCL_KERNELS_HEADER +#include "basisu_ocl_kernels.h" +#endif + + static void ocl_error_printf(const char* pFmt, ...) + { + va_list args; + va_start(args, pFmt); + error_vprintf(pFmt, args); + va_end(args); + +#if BASISU_OPENCL_ASSERT_ON_ANY_ERRORS + assert(0); +#endif + } + + class ocl + { + public: + ocl() + { + memset(&m_dev_fp_config, 0, sizeof(m_dev_fp_config)); + + m_ocl_mutex.lock(); + m_ocl_mutex.unlock(); + } + + ~ocl() + { + } + + bool is_initialized() const { return m_device_id != nullptr; } + + cl_device_id get_device_id() const { return m_device_id; } + cl_context get_context() const { return m_context; } + cl_command_queue get_command_queue() { return m_command_queue; } + cl_program get_program() const { return m_program; } + + bool init(bool force_serialization) + { + deinit(); + + interval_timer tm; + tm.start(); + + cl_uint num_platforms = 0; + cl_int ret = clGetPlatformIDs(0, NULL, &num_platforms); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::init: clGetPlatformIDs() failed with %i\n", ret); + return false; + } + + if ((!num_platforms) || (num_platforms > INT_MAX)) + { + ocl_error_printf("ocl::init: clGetPlatformIDs() returned an invalid number of num_platforms\n"); + return false; + } + + std::vector<cl_platform_id> platforms(num_platforms); + + ret = clGetPlatformIDs(num_platforms, platforms.data(), NULL); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::init: clGetPlatformIDs() failed\n"); + return false; + } + + cl_uint num_devices = 0; + ret = clGetDeviceIDs(platforms[0], CL_DEVICE_TYPE_GPU, 1, &m_device_id, &num_devices); + + if (ret == CL_DEVICE_NOT_FOUND) + { + ocl_error_printf("ocl::init: Couldn't get any GPU device ID's, trying CL_DEVICE_TYPE_CPU\n"); + + ret = clGetDeviceIDs(platforms[0], CL_DEVICE_TYPE_CPU, 1, &m_device_id, &num_devices); + } + + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::init: Unable to get any device ID's\n"); + + m_device_id = nullptr; + return false; + } + + ret = clGetDeviceInfo(m_device_id, + CL_DEVICE_SINGLE_FP_CONFIG, + sizeof(m_dev_fp_config), + &m_dev_fp_config, + nullptr); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::init: clGetDeviceInfo() failed\n"); + return false; + } + + char plat_vers[256]; + size_t rv = 0; + ret = clGetPlatformInfo(platforms[0], CL_PLATFORM_VERSION, sizeof(plat_vers), plat_vers, &rv); + if (ret == CL_SUCCESS) + printf("OpenCL platform version: \"%s\"\n", plat_vers); + + // Serialize CL calls with the AMD driver to avoid lockups when multiple command queues per thread are used. This sucks, but what can we do? + m_use_mutex = (strstr(plat_vers, "AMD") != nullptr) || force_serialization; + + printf("Serializing OpenCL calls across threads: %u\n", (uint32_t)m_use_mutex); + + m_context = clCreateContext(nullptr, 1, &m_device_id, nullptr, nullptr, &ret); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::init: clCreateContext() failed\n"); + + m_device_id = nullptr; + m_context = nullptr; + return false; + } + + m_command_queue = clCreateCommandQueue(m_context, m_device_id, 0, &ret); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::init: clCreateCommandQueue() failed\n"); + + deinit(); + return false; + } + + printf("OpenCL init time: %3.3f secs\n", tm.get_elapsed_secs()); + + return true; + } + + bool deinit() + { + if (m_program) + { + clReleaseProgram(m_program); + m_program = nullptr; + } + + if (m_command_queue) + { + clReleaseCommandQueue(m_command_queue); + m_command_queue = nullptr; + } + + if (m_context) + { + clReleaseContext(m_context); + m_context = nullptr; + } + + m_device_id = nullptr; + + return true; + } + + cl_command_queue create_command_queue() + { + cl_serializer serializer(this); + + cl_int ret = 0; + cl_command_queue p = clCreateCommandQueue(m_context, m_device_id, 0, &ret); + if (ret != CL_SUCCESS) + return nullptr; + + return p; + } + + void destroy_command_queue(cl_command_queue p) + { + if (p) + { + cl_serializer serializer(this); + + clReleaseCommandQueue(p); + } + } + + bool init_program(const char* pSrc, size_t src_size) + { + cl_int ret; + + if (m_program != nullptr) + { + clReleaseProgram(m_program); + m_program = nullptr; + } + + m_program = clCreateProgramWithSource(m_context, 1, (const char**)&pSrc, (const size_t*)&src_size, &ret); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::init_program: clCreateProgramWithSource() failed!\n"); + return false; + } + + std::string options; + if (m_dev_fp_config & CL_FP_CORRECTLY_ROUNDED_DIVIDE_SQRT) + { + options += "-cl-fp32-correctly-rounded-divide-sqrt"; + } + + options += " -cl-std=CL1.2"; + //options += " -cl-opt-disable"; + //options += " -cl-mad-enable"; + //options += " -cl-fast-relaxed-math"; + + ret = clBuildProgram(m_program, 1, &m_device_id, + options.size() ? options.c_str() : nullptr, // options + nullptr, // notify + nullptr); // user_data + + if (ret != CL_SUCCESS) + { + const cl_int build_program_result = ret; + + size_t ret_val_size; + ret = clGetProgramBuildInfo(m_program, m_device_id, CL_PROGRAM_BUILD_LOG, 0, NULL, &ret_val_size); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::init_program: clGetProgramBuildInfo() failed!\n"); + return false; + } + + std::vector<char> build_log(ret_val_size + 1); + + ret = clGetProgramBuildInfo(m_program, m_device_id, CL_PROGRAM_BUILD_LOG, ret_val_size, build_log.data(), NULL); + + ocl_error_printf("\nclBuildProgram() failed with error %i:\n%s", build_program_result, build_log.data()); + + return false; + } + + return true; + } + + cl_kernel create_kernel(const char* pName) + { + if (!m_program) + return nullptr; + + cl_serializer serializer(this); + + cl_int ret; + cl_kernel kernel = clCreateKernel(m_program, pName, &ret); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::create_kernel: clCreateKernel() failed!\n"); + return nullptr; + } + + return kernel; + } + + bool destroy_kernel(cl_kernel k) + { + if (k) + { + cl_serializer serializer(this); + + cl_int ret = clReleaseKernel(k); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::destroy_kernel: clReleaseKernel() failed!\n"); + return false; + } + } + return true; + } + + cl_mem alloc_read_buffer(size_t size) + { + cl_serializer serializer(this); + + cl_int ret; + cl_mem obj = clCreateBuffer(m_context, CL_MEM_READ_ONLY, size, NULL, &ret); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::alloc_read_buffer: clCreateBuffer() failed!\n"); + return nullptr; + } + + return obj; + } + + cl_mem alloc_and_init_read_buffer(cl_command_queue command_queue, const void *pInit, size_t size) + { + cl_serializer serializer(this); + + cl_int ret; + cl_mem obj = clCreateBuffer(m_context, CL_MEM_READ_ONLY, size, NULL, &ret); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::alloc_and_init_read_buffer: clCreateBuffer() failed!\n"); + return nullptr; + } + +#if 0 + if (!write_to_buffer(command_queue, obj, pInit, size)) + { + destroy_buffer(obj); + return nullptr; + } +#else + ret = clEnqueueWriteBuffer(command_queue, obj, CL_TRUE, 0, size, pInit, 0, NULL, NULL); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::alloc_and_init_read_buffer: clEnqueueWriteBuffer() failed!\n"); + return nullptr; + } +#endif + + return obj; + } + + cl_mem alloc_write_buffer(size_t size) + { + cl_serializer serializer(this); + + cl_int ret; + cl_mem obj = clCreateBuffer(m_context, CL_MEM_WRITE_ONLY, size, NULL, &ret); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::alloc_write_buffer: clCreateBuffer() failed!\n"); + return nullptr; + } + + return obj; + } + + bool destroy_buffer(cl_mem buf) + { + if (buf) + { + cl_serializer serializer(this); + + cl_int ret = clReleaseMemObject(buf); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::destroy_buffer: clReleaseMemObject() failed!\n"); + return false; + } + } + + return true; + } + + bool write_to_buffer(cl_command_queue command_queue, cl_mem clmem, const void* d, const size_t m) + { + cl_serializer serializer(this); + + cl_int ret = clEnqueueWriteBuffer(command_queue, clmem, CL_TRUE, 0, m, d, 0, NULL, NULL); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::write_to_buffer: clEnqueueWriteBuffer() failed!\n"); + return false; + } + + return true; + } + + bool read_from_buffer(cl_command_queue command_queue, const cl_mem clmem, void* d, size_t m) + { + cl_serializer serializer(this); + + cl_int ret = clEnqueueReadBuffer(command_queue, clmem, CL_TRUE, 0, m, d, 0, NULL, NULL); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::read_from_buffer: clEnqueueReadBuffer() failed!\n"); + return false; + } + + return true; + } + + cl_mem create_read_image_u8(uint32_t width, uint32_t height, const void* pPixels, uint32_t bytes_per_pixel, bool normalized) + { + cl_image_format fmt = get_image_format(bytes_per_pixel, normalized); + + cl_image_desc desc; + memset(&desc, 0, sizeof(desc)); + desc.image_type = CL_MEM_OBJECT_IMAGE2D; + desc.image_width = width; + desc.image_height = height; + desc.image_row_pitch = width * bytes_per_pixel; + + cl_serializer serializer(this); + + cl_int ret; + cl_mem img = clCreateImage(m_context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, &fmt, &desc, (void*)pPixels, &ret); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::create_read_image_u8: clCreateImage() failed!\n"); + return nullptr; + } + + return img; + } + + cl_mem create_write_image_u8(uint32_t width, uint32_t height, uint32_t bytes_per_pixel, bool normalized) + { + cl_image_format fmt = get_image_format(bytes_per_pixel, normalized); + + cl_image_desc desc; + memset(&desc, 0, sizeof(desc)); + desc.image_type = CL_MEM_OBJECT_IMAGE2D; + desc.image_width = width; + desc.image_height = height; + + cl_serializer serializer(this); + + cl_int ret; + cl_mem img = clCreateImage(m_context, CL_MEM_WRITE_ONLY, &fmt, &desc, nullptr, &ret); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::create_write_image_u8: clCreateImage() failed!\n"); + return nullptr; + } + + return img; + } + + bool read_from_image(cl_command_queue command_queue, cl_mem img, void* pPixels, uint32_t ofs_x, uint32_t ofs_y, uint32_t width, uint32_t height) + { + cl_serializer serializer(this); + + size_t origin[3] = { ofs_x, ofs_y, 0 }, region[3] = { width, height, 1 }; + + cl_int err = clEnqueueReadImage(command_queue, img, CL_TRUE, origin, region, 0, 0, pPixels, 0, NULL, NULL); + if (err != CL_SUCCESS) + { + ocl_error_printf("ocl::read_from_image: clEnqueueReadImage() failed!\n"); + return false; + } + + return true; + } + + bool run_1D(cl_command_queue command_queue, const cl_kernel kernel, size_t num_items) + { + cl_serializer serializer(this); + + cl_int ret = clEnqueueNDRangeKernel(command_queue, kernel, + 1, // work_dim + nullptr, // global_work_offset + &num_items, // global_work_size + nullptr, // local_work_size + 0, // num_events_in_wait_list + nullptr, // event_wait_list + nullptr // event + ); + + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::run_1D: clEnqueueNDRangeKernel() failed!\n"); + return false; + } + + return true; + } + + bool run_2D(cl_command_queue command_queue, const cl_kernel kernel, size_t width, size_t height) + { + cl_serializer serializer(this); + + size_t num_global_items[2] = { width, height }; + //size_t num_local_items[2] = { 1, 1 }; + + cl_int ret = clEnqueueNDRangeKernel(command_queue, kernel, + 2, // work_dim + nullptr, // global_work_offset + num_global_items, // global_work_size + nullptr, // local_work_size + 0, // num_events_in_wait_list + nullptr, // event_wait_list + nullptr // event + ); + + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::run_2D: clEnqueueNDRangeKernel() failed!\n"); + return false; + } + + return true; + } + + bool run_2D(cl_command_queue command_queue, const cl_kernel kernel, size_t ofs_x, size_t ofs_y, size_t width, size_t height) + { + cl_serializer serializer(this); + + size_t global_ofs[2] = { ofs_x, ofs_y }; + size_t num_global_items[2] = { width, height }; + //size_t num_local_items[2] = { 1, 1 }; + + cl_int ret = clEnqueueNDRangeKernel(command_queue, kernel, + 2, // work_dim + global_ofs, // global_work_offset + num_global_items, // global_work_size + nullptr, // local_work_size + 0, // num_events_in_wait_list + nullptr, // event_wait_list + nullptr // event + ); + + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::run_2D: clEnqueueNDRangeKernel() failed!\n"); + return false; + } + + return true; + } + + void flush(cl_command_queue command_queue) + { + cl_serializer serializer(this); + + clFlush(command_queue); + clFinish(command_queue); + } + + template<typename T> + bool set_kernel_arg(cl_kernel kernel, uint32_t index, const T& obj) + { + cl_serializer serializer(this); + + cl_int ret = clSetKernelArg(kernel, index, sizeof(T), (void*)&obj); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::set_kernel_arg: clSetKernelArg() failed!\n"); + return false; + } + return true; + } + + template<typename T> + bool set_kernel_args(cl_kernel kernel, const T& obj1) + { + cl_serializer serializer(this); + + cl_int ret = clSetKernelArg(kernel, 0, sizeof(T), (void*)&obj1); + if (ret != CL_SUCCESS) + { + ocl_error_printf("ocl::set_kernel_arg: clSetKernelArg() failed!\n"); + return false; + } + return true; + } + +#define BASISU_CHECK_ERR if (ret != CL_SUCCESS) { ocl_error_printf("ocl::set_kernel_args: clSetKernelArg() failed!\n"); return false; } + + template<typename T, typename U> + bool set_kernel_args(cl_kernel kernel, const T& obj1, const U& obj2) + { + cl_serializer serializer(this); + cl_int ret = clSetKernelArg(kernel, 0, sizeof(T), (void*)&obj1); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 1, sizeof(U), (void*)&obj2); BASISU_CHECK_ERR + return true; + } + + template<typename T, typename U, typename V> + bool set_kernel_args(cl_kernel kernel, const T& obj1, const U& obj2, const V& obj3) + { + cl_serializer serializer(this); + cl_int ret = clSetKernelArg(kernel, 0, sizeof(T), (void*)&obj1); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 1, sizeof(U), (void*)&obj2); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 2, sizeof(V), (void*)&obj3); BASISU_CHECK_ERR + return true; + } + + template<typename T, typename U, typename V, typename W> + bool set_kernel_args(cl_kernel kernel, const T& obj1, const U& obj2, const V& obj3, const W& obj4) + { + cl_serializer serializer(this); + cl_int ret = clSetKernelArg(kernel, 0, sizeof(T), (void*)&obj1); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 1, sizeof(U), (void*)&obj2); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 2, sizeof(V), (void*)&obj3); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 3, sizeof(W), (void*)&obj4); BASISU_CHECK_ERR + return true; + } + + template<typename T, typename U, typename V, typename W, typename X> + bool set_kernel_args(cl_kernel kernel, const T& obj1, const U& obj2, const V& obj3, const W& obj4, const X& obj5) + { + cl_serializer serializer(this); + cl_int ret = clSetKernelArg(kernel, 0, sizeof(T), (void*)&obj1); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 1, sizeof(U), (void*)&obj2); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 2, sizeof(V), (void*)&obj3); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 3, sizeof(W), (void*)&obj4); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 4, sizeof(X), (void*)&obj5); BASISU_CHECK_ERR + return true; + } + + template<typename T, typename U, typename V, typename W, typename X, typename Y> + bool set_kernel_args(cl_kernel kernel, const T& obj1, const U& obj2, const V& obj3, const W& obj4, const X& obj5, const Y& obj6) + { + cl_serializer serializer(this); + cl_int ret = clSetKernelArg(kernel, 0, sizeof(T), (void*)&obj1); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 1, sizeof(U), (void*)&obj2); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 2, sizeof(V), (void*)&obj3); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 3, sizeof(W), (void*)&obj4); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 4, sizeof(X), (void*)&obj5); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 5, sizeof(Y), (void*)&obj6); BASISU_CHECK_ERR + return true; + } + + template<typename T, typename U, typename V, typename W, typename X, typename Y, typename Z> + bool set_kernel_args(cl_kernel kernel, const T& obj1, const U& obj2, const V& obj3, const W& obj4, const X& obj5, const Y& obj6, const Z& obj7) + { + cl_serializer serializer(this); + cl_int ret = clSetKernelArg(kernel, 0, sizeof(T), (void*)&obj1); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 1, sizeof(U), (void*)&obj2); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 2, sizeof(V), (void*)&obj3); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 3, sizeof(W), (void*)&obj4); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 4, sizeof(X), (void*)&obj5); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 5, sizeof(Y), (void*)&obj6); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 6, sizeof(Z), (void*)&obj7); BASISU_CHECK_ERR + return true; + } + + template<typename T, typename U, typename V, typename W, typename X, typename Y, typename Z, typename A> + bool set_kernel_args(cl_kernel kernel, const T& obj1, const U& obj2, const V& obj3, const W& obj4, const X& obj5, const Y& obj6, const Z& obj7, const A& obj8) + { + cl_serializer serializer(this); + cl_int ret = clSetKernelArg(kernel, 0, sizeof(T), (void*)&obj1); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 1, sizeof(U), (void*)&obj2); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 2, sizeof(V), (void*)&obj3); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 3, sizeof(W), (void*)&obj4); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 4, sizeof(X), (void*)&obj5); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 5, sizeof(Y), (void*)&obj6); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 6, sizeof(Z), (void*)&obj7); BASISU_CHECK_ERR + ret = clSetKernelArg(kernel, 7, sizeof(A), (void*)&obj8); BASISU_CHECK_ERR + return true; + } +#undef BASISU_CHECK_ERR + + private: + cl_device_id m_device_id = nullptr; + cl_context m_context = nullptr; + cl_command_queue m_command_queue = nullptr; + cl_program m_program = nullptr; + cl_device_fp_config m_dev_fp_config; + + bool m_use_mutex = false; + std::mutex m_ocl_mutex; + + // This helper object is used to optionally serialize all calls to the CL driver after initialization. + // Currently this is only used to work around race conditions in the Windows AMD driver. + struct cl_serializer + { + inline cl_serializer(const cl_serializer&); + cl_serializer& operator= (const cl_serializer&); + + inline cl_serializer(ocl *p) : m_p(p) + { + if (m_p->m_use_mutex) + m_p->m_ocl_mutex.lock(); + } + + inline ~cl_serializer() + { + if (m_p->m_use_mutex) + m_p->m_ocl_mutex.unlock(); + } + + private: + ocl* m_p; + }; + + cl_image_format get_image_format(uint32_t bytes_per_pixel, bool normalized) + { + cl_image_format fmt; + switch (bytes_per_pixel) + { + case 1: fmt.image_channel_order = CL_LUMINANCE; break; + case 2: fmt.image_channel_order = CL_RG; break; + case 3: fmt.image_channel_order = CL_RGB; break; + case 4: fmt.image_channel_order = CL_RGBA; break; + default: assert(0); fmt.image_channel_order = CL_LUMINANCE; break; + } + + fmt.image_channel_data_type = normalized ? CL_UNORM_INT8 : CL_UNSIGNED_INT8; + return fmt; + } + }; + + // Library blobal state + ocl g_ocl; + + bool opencl_init(bool force_serialization) + { + if (g_ocl.is_initialized()) + { + assert(0); + return false; + } + + if (!g_ocl.init(force_serialization)) + { + ocl_error_printf("opencl_init: Failed initializing OpenCL\n"); + return false; + } + + const char* pKernel_src = nullptr; + size_t kernel_src_size = 0; + uint8_vec kernel_src; + +#if BASISU_USE_OCL_KERNELS_HEADER + pKernel_src = reinterpret_cast<const char*>(ocl_kernels_cl); + kernel_src_size = ocl_kernels_cl_len; +#else + if (!read_file_to_vec(BASISU_OCL_KERNELS_FILENAME, kernel_src)) + { + ocl_error_printf("opencl_init: Cannot read OpenCL kernel source file \"%s\"\n", BASISU_OCL_KERNELS_FILENAME); + g_ocl.deinit(); + return false; + } + + pKernel_src = (char*)kernel_src.data(); + kernel_src_size = kernel_src.size(); +#endif + + if (!kernel_src_size) + { + ocl_error_printf("opencl_init: Invalid OpenCL kernel source file \"%s\"\n", BASISU_OCL_KERNELS_FILENAME); + g_ocl.deinit(); + return false; + } + + if (!g_ocl.init_program(pKernel_src, kernel_src_size)) + { + ocl_error_printf("opencl_init: Failed compiling OpenCL program\n"); + g_ocl.deinit(); + return false; + } + + printf("OpenCL support initialized successfully\n"); + + return true; + } + + void opencl_deinit() + { + g_ocl.deinit(); + } + + bool opencl_is_available() + { + return g_ocl.is_initialized(); + } + + struct opencl_context + { + uint32_t m_ocl_total_pixel_blocks; + cl_mem m_ocl_pixel_blocks; + + cl_command_queue m_command_queue; + + cl_kernel m_ocl_encode_etc1s_blocks_kernel; + cl_kernel m_ocl_refine_endpoint_clusterization_kernel; + cl_kernel m_ocl_encode_etc1s_from_pixel_cluster_kernel; + cl_kernel m_ocl_find_optimal_selector_clusters_for_each_block_kernel; + cl_kernel m_ocl_determine_selectors_kernel; + }; + + opencl_context_ptr opencl_create_context() + { + if (!opencl_is_available()) + { + ocl_error_printf("opencl_create_context: OpenCL not initialized\n"); + assert(0); + return nullptr; + } + + interval_timer tm; + tm.start(); + + opencl_context* pContext = static_cast<opencl_context * >(calloc(sizeof(opencl_context), 1)); + if (!pContext) + return nullptr; + + // To avoid driver bugs in some drivers - serialize this. Likely not necessary, we don't know. + // https://community.intel.com/t5/OpenCL-for-CPU/Bug-report-clCreateKernelsInProgram-is-not-thread-safe/td-p/1159771 + + pContext->m_command_queue = g_ocl.create_command_queue(); + if (!pContext->m_command_queue) + { + ocl_error_printf("opencl_create_context: Failed creating OpenCL command queue!\n"); + opencl_destroy_context(pContext); + return nullptr; + } + + pContext->m_ocl_encode_etc1s_blocks_kernel = g_ocl.create_kernel("encode_etc1s_blocks"); + if (!pContext->m_ocl_encode_etc1s_blocks_kernel) + { + ocl_error_printf("opencl_create_context: Failed creating OpenCL kernel encode_etc1s_block\n"); + opencl_destroy_context(pContext); + return nullptr; + } + + pContext->m_ocl_refine_endpoint_clusterization_kernel = g_ocl.create_kernel("refine_endpoint_clusterization"); + if (!pContext->m_ocl_refine_endpoint_clusterization_kernel) + { + ocl_error_printf("opencl_create_context: Failed creating OpenCL kernel refine_endpoint_clusterization\n"); + opencl_destroy_context(pContext); + return nullptr; + } + + pContext->m_ocl_encode_etc1s_from_pixel_cluster_kernel = g_ocl.create_kernel("encode_etc1s_from_pixel_cluster"); + if (!pContext->m_ocl_encode_etc1s_from_pixel_cluster_kernel) + { + ocl_error_printf("opencl_create_context: Failed creating OpenCL kernel encode_etc1s_from_pixel_cluster\n"); + opencl_destroy_context(pContext); + return nullptr; + } + + pContext->m_ocl_find_optimal_selector_clusters_for_each_block_kernel = g_ocl.create_kernel("find_optimal_selector_clusters_for_each_block"); + if (!pContext->m_ocl_find_optimal_selector_clusters_for_each_block_kernel) + { + ocl_error_printf("opencl_create_context: Failed creating OpenCL kernel find_optimal_selector_clusters_for_each_block\n"); + opencl_destroy_context(pContext); + return nullptr; + } + + pContext->m_ocl_determine_selectors_kernel = g_ocl.create_kernel("determine_selectors"); + if (!pContext->m_ocl_determine_selectors_kernel) + { + ocl_error_printf("opencl_create_context: Failed creating OpenCL kernel determine_selectors\n"); + opencl_destroy_context(pContext); + return nullptr; + } + + debug_printf("opencl_create_context: Elapsed time: %f secs\n", tm.get_elapsed_secs()); + + return pContext; + } + + void opencl_destroy_context(opencl_context_ptr pContext) + { + if (!pContext) + return; + + interval_timer tm; + tm.start(); + + g_ocl.destroy_buffer(pContext->m_ocl_pixel_blocks); + + g_ocl.destroy_kernel(pContext->m_ocl_determine_selectors_kernel); + g_ocl.destroy_kernel(pContext->m_ocl_find_optimal_selector_clusters_for_each_block_kernel); + g_ocl.destroy_kernel(pContext->m_ocl_encode_etc1s_from_pixel_cluster_kernel); + g_ocl.destroy_kernel(pContext->m_ocl_encode_etc1s_blocks_kernel); + g_ocl.destroy_kernel(pContext->m_ocl_refine_endpoint_clusterization_kernel); + + g_ocl.destroy_command_queue(pContext->m_command_queue); + + memset(pContext, 0, sizeof(opencl_context)); + + free(pContext); + + debug_printf("opencl_destroy_context: Elapsed time: %f secs\n", tm.get_elapsed_secs()); + } + +#pragma pack(push, 1) + struct cl_encode_etc1s_param_struct + { + int m_total_blocks; + int m_perceptual; + int m_total_perms; + }; +#pragma pack(pop) + + bool opencl_set_pixel_blocks(opencl_context_ptr pContext, uint32_t total_blocks, const cl_pixel_block* pPixel_blocks) + { + if (!opencl_is_available()) + return false; + + if (pContext->m_ocl_pixel_blocks) + { + g_ocl.destroy_buffer(pContext->m_ocl_pixel_blocks); + pContext->m_ocl_pixel_blocks = nullptr; + } + + pContext->m_ocl_pixel_blocks = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue, pPixel_blocks, sizeof(cl_pixel_block) * total_blocks); + if (!pContext->m_ocl_pixel_blocks) + return false; + + pContext->m_ocl_total_pixel_blocks = total_blocks; + + return true; + } + + bool opencl_encode_etc1s_blocks(opencl_context_ptr pContext, etc_block* pOutput_blocks, bool perceptual, uint32_t total_perms) + { + if (!opencl_is_available()) + return false; + + interval_timer tm; + tm.start(); + + assert(pContext->m_ocl_pixel_blocks); + if (!pContext->m_ocl_pixel_blocks) + return false; + + cl_encode_etc1s_param_struct ps; + ps.m_total_blocks = pContext->m_ocl_total_pixel_blocks; + ps.m_perceptual = perceptual; + ps.m_total_perms = total_perms; + + bool status = false; + + cl_mem vars = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue , &ps, sizeof(ps)); + cl_mem block_buf = g_ocl.alloc_write_buffer(sizeof(etc_block) * pContext->m_ocl_total_pixel_blocks); + + if (!vars || !block_buf) + goto exit; + + if (!g_ocl.set_kernel_args(pContext->m_ocl_encode_etc1s_blocks_kernel, vars, pContext->m_ocl_pixel_blocks, block_buf)) + goto exit; + + if (!g_ocl.run_2D(pContext->m_command_queue, pContext->m_ocl_encode_etc1s_blocks_kernel, pContext->m_ocl_total_pixel_blocks, 1)) + goto exit; + + if (!g_ocl.read_from_buffer(pContext->m_command_queue, block_buf, pOutput_blocks, pContext->m_ocl_total_pixel_blocks * sizeof(etc_block))) + goto exit; + + status = true; + + debug_printf("opencl_encode_etc1s_blocks: Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); + +exit: + g_ocl.destroy_buffer(block_buf); + g_ocl.destroy_buffer(vars); + + return status; + } + + bool opencl_encode_etc1s_pixel_clusters( + opencl_context_ptr pContext, + etc_block* pOutput_blocks, + uint32_t total_clusters, + const cl_pixel_cluster* pClusters, + uint64_t total_pixels, + const color_rgba* pPixels, const uint32_t* pPixel_weights, + bool perceptual, uint32_t total_perms) + { + if (!opencl_is_available()) + return false; + + interval_timer tm; + tm.start(); + + cl_encode_etc1s_param_struct ps; + ps.m_total_blocks = total_clusters; + ps.m_perceptual = perceptual; + ps.m_total_perms = total_perms; + + bool status = false; + + if (sizeof(size_t) == sizeof(uint32_t)) + { + if ( ((sizeof(cl_pixel_cluster) * total_clusters) > UINT32_MAX) || + ((sizeof(color_rgba) * total_pixels) > UINT32_MAX) || + ((sizeof(uint32_t) * total_pixels) > UINT32_MAX) ) + { + return false; + } + } + + cl_mem vars = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue , &ps, sizeof(ps)); + cl_mem input_clusters = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue, pClusters, (size_t)(sizeof(cl_pixel_cluster) * total_clusters)); + cl_mem input_pixels = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue, pPixels, (size_t)(sizeof(color_rgba) * total_pixels)); + cl_mem weights_buf = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue, pPixel_weights, (size_t)(sizeof(uint32_t) * total_pixels)); + cl_mem block_buf = g_ocl.alloc_write_buffer(sizeof(etc_block) * total_clusters); + + if (!vars || !input_clusters || !input_pixels || !weights_buf || !block_buf) + goto exit; + + if (!g_ocl.set_kernel_args(pContext->m_ocl_encode_etc1s_from_pixel_cluster_kernel, vars, input_clusters, input_pixels, weights_buf, block_buf)) + goto exit; + + if (!g_ocl.run_2D(pContext->m_command_queue, pContext->m_ocl_encode_etc1s_from_pixel_cluster_kernel, total_clusters, 1)) + goto exit; + + if (!g_ocl.read_from_buffer(pContext->m_command_queue, block_buf, pOutput_blocks, sizeof(etc_block) * total_clusters)) + goto exit; + + status = true; + + debug_printf("opencl_encode_etc1s_pixel_clusters: Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); + + exit: + g_ocl.destroy_buffer(block_buf); + g_ocl.destroy_buffer(weights_buf); + g_ocl.destroy_buffer(input_pixels); + g_ocl.destroy_buffer(input_clusters); + g_ocl.destroy_buffer(vars); + + return status; + } + +#pragma pack(push, 1) + struct cl_rec_param_struct + { + int m_total_blocks; + int m_perceptual; + }; +#pragma pack(pop) + + bool opencl_refine_endpoint_clusterization( + opencl_context_ptr pContext, + const cl_block_info_struct* pPixel_block_info, + uint32_t total_clusters, + const cl_endpoint_cluster_struct* pCluster_info, + const uint32_t* pSorted_block_indices, + uint32_t* pOutput_cluster_indices, + bool perceptual) + { + if (!opencl_is_available()) + return false; + + interval_timer tm; + tm.start(); + + assert(pContext->m_ocl_pixel_blocks); + if (!pContext->m_ocl_pixel_blocks) + return false; + + cl_rec_param_struct ps; + ps.m_total_blocks = pContext->m_ocl_total_pixel_blocks; + ps.m_perceptual = perceptual; + + bool status = false; + + cl_mem pixel_block_info = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue, pPixel_block_info, sizeof(cl_block_info_struct) * pContext->m_ocl_total_pixel_blocks); + cl_mem cluster_info = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue, pCluster_info, sizeof(cl_endpoint_cluster_struct) * total_clusters); + cl_mem sorted_block_indices = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue, pSorted_block_indices, sizeof(uint32_t) * pContext->m_ocl_total_pixel_blocks); + cl_mem output_buf = g_ocl.alloc_write_buffer(sizeof(uint32_t) * pContext->m_ocl_total_pixel_blocks); + + if (!pixel_block_info || !cluster_info || !sorted_block_indices || !output_buf) + goto exit; + + if (!g_ocl.set_kernel_args(pContext->m_ocl_refine_endpoint_clusterization_kernel, ps, pContext->m_ocl_pixel_blocks, pixel_block_info, cluster_info, sorted_block_indices, output_buf)) + goto exit; + + if (!g_ocl.run_2D(pContext->m_command_queue, pContext->m_ocl_refine_endpoint_clusterization_kernel, pContext->m_ocl_total_pixel_blocks, 1)) + goto exit; + + if (!g_ocl.read_from_buffer(pContext->m_command_queue, output_buf, pOutput_cluster_indices, pContext->m_ocl_total_pixel_blocks * sizeof(uint32_t))) + goto exit; + + debug_printf("opencl_refine_endpoint_clusterization: Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); + + status = true; + +exit: + g_ocl.destroy_buffer(pixel_block_info); + g_ocl.destroy_buffer(cluster_info); + g_ocl.destroy_buffer(sorted_block_indices); + g_ocl.destroy_buffer(output_buf); + + return status; + } + + bool opencl_find_optimal_selector_clusters_for_each_block( + opencl_context_ptr pContext, + const fosc_block_struct* pInput_block_info, // one per block + uint32_t total_input_selectors, + const fosc_selector_struct* pInput_selectors, + const uint32_t* pSelector_cluster_indices, + uint32_t* pOutput_selector_cluster_indices, // one per block + bool perceptual) + { + if (!opencl_is_available()) + return false; + + interval_timer tm; + tm.start(); + + assert(pContext->m_ocl_pixel_blocks); + if (!pContext->m_ocl_pixel_blocks) + return false; + + fosc_param_struct ps; + ps.m_total_blocks = pContext->m_ocl_total_pixel_blocks; + ps.m_perceptual = perceptual; + + bool status = false; + + cl_mem input_block_info = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue, pInput_block_info, sizeof(fosc_block_struct) * pContext->m_ocl_total_pixel_blocks); + cl_mem input_selectors = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue, pInput_selectors, sizeof(fosc_selector_struct) * total_input_selectors); + cl_mem selector_cluster_indices = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue, pSelector_cluster_indices, sizeof(uint32_t) * total_input_selectors); + cl_mem output_selector_cluster_indices = g_ocl.alloc_write_buffer(sizeof(uint32_t) * pContext->m_ocl_total_pixel_blocks); + + if (!input_block_info || !input_selectors || !selector_cluster_indices || !output_selector_cluster_indices) + goto exit; + + if (!g_ocl.set_kernel_args(pContext->m_ocl_find_optimal_selector_clusters_for_each_block_kernel, ps, pContext->m_ocl_pixel_blocks, input_block_info, input_selectors, selector_cluster_indices, output_selector_cluster_indices)) + goto exit; + + if (!g_ocl.run_2D(pContext->m_command_queue, pContext->m_ocl_find_optimal_selector_clusters_for_each_block_kernel, pContext->m_ocl_total_pixel_blocks, 1)) + goto exit; + + if (!g_ocl.read_from_buffer(pContext->m_command_queue, output_selector_cluster_indices, pOutput_selector_cluster_indices, pContext->m_ocl_total_pixel_blocks * sizeof(uint32_t))) + goto exit; + + debug_printf("opencl_find_optimal_selector_clusters_for_each_block: Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); + + status = true; + + exit: + g_ocl.destroy_buffer(input_block_info); + g_ocl.destroy_buffer(input_selectors); + g_ocl.destroy_buffer(selector_cluster_indices); + g_ocl.destroy_buffer(output_selector_cluster_indices); + + return status; + } + + bool opencl_determine_selectors( + opencl_context_ptr pContext, + const color_rgba* pInput_etc_color5_and_inten, + etc_block* pOutput_blocks, + bool perceptual) + { + if (!opencl_is_available()) + return false; + + interval_timer tm; + tm.start(); + + assert(pContext->m_ocl_pixel_blocks); + if (!pContext->m_ocl_pixel_blocks) + return false; + + ds_param_struct ps; + ps.m_total_blocks = pContext->m_ocl_total_pixel_blocks; + ps.m_perceptual = perceptual; + + bool status = false; + + cl_mem input_etc_color5_intens = g_ocl.alloc_and_init_read_buffer(pContext->m_command_queue, pInput_etc_color5_and_inten, sizeof(color_rgba) * pContext->m_ocl_total_pixel_blocks); + cl_mem output_blocks = g_ocl.alloc_write_buffer(sizeof(etc_block) * pContext->m_ocl_total_pixel_blocks); + + if (!input_etc_color5_intens || !output_blocks) + goto exit; + + if (!g_ocl.set_kernel_args(pContext->m_ocl_determine_selectors_kernel, ps, pContext->m_ocl_pixel_blocks, input_etc_color5_intens, output_blocks)) + goto exit; + + if (!g_ocl.run_2D(pContext->m_command_queue, pContext->m_ocl_determine_selectors_kernel, pContext->m_ocl_total_pixel_blocks, 1)) + goto exit; + + if (!g_ocl.read_from_buffer(pContext->m_command_queue, output_blocks, pOutput_blocks, pContext->m_ocl_total_pixel_blocks * sizeof(etc_block))) + goto exit; + + debug_printf("opencl_determine_selectors: Elapsed time: %3.3f secs\n", tm.get_elapsed_secs()); + + status = true; + + exit: + g_ocl.destroy_buffer(input_etc_color5_intens); + g_ocl.destroy_buffer(output_blocks); + + return status; + } + +#else +namespace basisu +{ + // No OpenCL support - all dummy functions that return false; + bool opencl_init(bool force_serialization) + { + BASISU_NOTE_UNUSED(force_serialization); + + return false; + } + + void opencl_deinit() + { + } + + bool opencl_is_available() + { + return false; + } + + opencl_context_ptr opencl_create_context() + { + return nullptr; + } + + void opencl_destroy_context(opencl_context_ptr context) + { + BASISU_NOTE_UNUSED(context); + } + + bool opencl_set_pixel_blocks(opencl_context_ptr pContext, uint32_t total_blocks, const cl_pixel_block* pPixel_blocks) + { + BASISU_NOTE_UNUSED(pContext); + BASISU_NOTE_UNUSED(total_blocks); + BASISU_NOTE_UNUSED(pPixel_blocks); + + return false; + } + + bool opencl_encode_etc1s_blocks(opencl_context_ptr pContext, etc_block* pOutput_blocks, bool perceptual, uint32_t total_perms) + { + BASISU_NOTE_UNUSED(pContext); + BASISU_NOTE_UNUSED(pOutput_blocks); + BASISU_NOTE_UNUSED(perceptual); + BASISU_NOTE_UNUSED(total_perms); + + return false; + } + + bool opencl_encode_etc1s_pixel_clusters( + opencl_context_ptr pContext, + etc_block* pOutput_blocks, + uint32_t total_clusters, + const cl_pixel_cluster* pClusters, + uint64_t total_pixels, + const color_rgba* pPixels, const uint32_t *pPixel_weights, + bool perceptual, uint32_t total_perms) + { + BASISU_NOTE_UNUSED(pContext); + BASISU_NOTE_UNUSED(pOutput_blocks); + BASISU_NOTE_UNUSED(total_clusters); + BASISU_NOTE_UNUSED(pClusters); + BASISU_NOTE_UNUSED(total_pixels); + BASISU_NOTE_UNUSED(pPixels); + BASISU_NOTE_UNUSED(pPixel_weights); + BASISU_NOTE_UNUSED(perceptual); + BASISU_NOTE_UNUSED(total_perms); + + return false; + } + + bool opencl_refine_endpoint_clusterization( + opencl_context_ptr pContext, + const cl_block_info_struct* pPixel_block_info, + uint32_t total_clusters, + const cl_endpoint_cluster_struct* pCluster_info, + const uint32_t* pSorted_block_indices, + uint32_t* pOutput_cluster_indices, + bool perceptual) + { + BASISU_NOTE_UNUSED(pContext); + BASISU_NOTE_UNUSED(pPixel_block_info); + BASISU_NOTE_UNUSED(total_clusters); + BASISU_NOTE_UNUSED(pCluster_info); + BASISU_NOTE_UNUSED(pSorted_block_indices); + BASISU_NOTE_UNUSED(pOutput_cluster_indices); + BASISU_NOTE_UNUSED(perceptual); + + return false; + } + + bool opencl_find_optimal_selector_clusters_for_each_block( + opencl_context_ptr pContext, + const fosc_block_struct* pInput_block_info, // one per block + uint32_t total_input_selectors, + const fosc_selector_struct* pInput_selectors, + const uint32_t* pSelector_cluster_indices, + uint32_t* pOutput_selector_cluster_indices, // one per block + bool perceptual) + { + BASISU_NOTE_UNUSED(pContext); + BASISU_NOTE_UNUSED(pInput_block_info); + BASISU_NOTE_UNUSED(total_input_selectors); + BASISU_NOTE_UNUSED(pInput_selectors); + BASISU_NOTE_UNUSED(pSelector_cluster_indices); + BASISU_NOTE_UNUSED(pOutput_selector_cluster_indices); + BASISU_NOTE_UNUSED(perceptual); + + return false; + } + + bool opencl_determine_selectors( + opencl_context_ptr pContext, + const color_rgba* pInput_etc_color5_and_inten, + etc_block* pOutput_blocks, + bool perceptual) + { + BASISU_NOTE_UNUSED(pContext); + BASISU_NOTE_UNUSED(pInput_etc_color5_and_inten); + BASISU_NOTE_UNUSED(pOutput_blocks); + BASISU_NOTE_UNUSED(perceptual); + + return false; + } + +#endif // BASISU_SUPPORT_OPENCL + +} // namespace basisu diff --git a/thirdparty/basis_universal/encoder/basisu_opencl.h b/thirdparty/basis_universal/encoder/basisu_opencl.h new file mode 100644 index 0000000000..4194a08418 --- /dev/null +++ b/thirdparty/basis_universal/encoder/basisu_opencl.h @@ -0,0 +1,143 @@ +// basisu_opencl.h +// Copyright (C) 2019-2021 Binomial LLC. All Rights Reserved. +// +// Note: Undefine or set BASISU_SUPPORT_OPENCL to 0 to completely OpenCL support. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +#pragma once +#include "../transcoder/basisu.h" +#include "basisu_enc.h" +#include "basisu_etc.h" + +namespace basisu +{ + bool opencl_init(bool force_serialization); + void opencl_deinit(); + bool opencl_is_available(); + + struct opencl_context; + + // Each thread calling OpenCL should have its own opencl_context_ptr. This corresponds to a OpenCL command queue. (Confusingly, we only use a single OpenCL device "context".) + typedef opencl_context* opencl_context_ptr; + + opencl_context_ptr opencl_create_context(); + void opencl_destroy_context(opencl_context_ptr context); + +#pragma pack(push, 1) + struct cl_pixel_block + { + color_rgba m_pixels[16]; // [y*4+x] + }; +#pragma pack(pop) + + // Must match BASISU_ETC1_CLUSTER_FIT_ORDER_TABLE_SIZE + const uint32_t OPENCL_ENCODE_ETC1S_MAX_PERMS = 165; + + bool opencl_set_pixel_blocks(opencl_context_ptr pContext, uint32_t total_blocks, const cl_pixel_block* pPixel_blocks); + + bool opencl_encode_etc1s_blocks(opencl_context_ptr pContext, etc_block* pOutput_blocks, bool perceptual, uint32_t total_perms); + + // opencl_encode_etc1s_pixel_clusters + +#pragma pack(push, 1) + struct cl_pixel_cluster + { + uint64_t m_total_pixels; + uint64_t m_first_pixel_index; + }; +#pragma pack(pop) + + bool opencl_encode_etc1s_pixel_clusters( + opencl_context_ptr pContext, + etc_block* pOutput_blocks, + uint32_t total_clusters, + const cl_pixel_cluster *pClusters, + uint64_t total_pixels, + const color_rgba *pPixels, + const uint32_t *pPixel_weights, + bool perceptual, uint32_t total_perms); + + // opencl_refine_endpoint_clusterization + +#pragma pack(push, 1) + struct cl_block_info_struct + { + uint16_t m_first_cluster_ofs; + uint16_t m_num_clusters; + uint16_t m_cur_cluster_index; + uint8_t m_cur_cluster_etc_inten; + }; + + struct cl_endpoint_cluster_struct + { + color_rgba m_unscaled_color; + uint8_t m_etc_inten; + uint16_t m_cluster_index; + }; +#pragma pack(pop) + + bool opencl_refine_endpoint_clusterization( + opencl_context_ptr pContext, + const cl_block_info_struct *pPixel_block_info, + uint32_t total_clusters, + const cl_endpoint_cluster_struct *pCluster_info, + const uint32_t *pSorted_block_indices, + uint32_t* pOutput_cluster_indices, + bool perceptual); + + // opencl_find_optimal_selector_clusters_for_each_block + +#pragma pack(push, 1) + struct fosc_selector_struct + { + uint32_t m_packed_selectors; // 4x4 grid of 2-bit selectors + }; + + struct fosc_block_struct + { + color_rgba m_etc_color5_inten; // unscaled 5-bit block color in RGB, alpha has block's intensity index + uint32_t m_first_selector; // offset into selector table + uint32_t m_num_selectors; // number of selectors to check + }; + + struct fosc_param_struct + { + uint32_t m_total_blocks; + int m_perceptual; + }; +#pragma pack(pop) + + bool opencl_find_optimal_selector_clusters_for_each_block( + opencl_context_ptr pContext, + const fosc_block_struct* pInput_block_info, // one per block + uint32_t total_input_selectors, + const fosc_selector_struct* pInput_selectors, + const uint32_t* pSelector_cluster_indices, + uint32_t* pOutput_selector_cluster_indices, // one per block + bool perceptual); + +#pragma pack(push, 1) + struct ds_param_struct + { + uint32_t m_total_blocks; + int m_perceptual; + }; +#pragma pack(pop) + + bool opencl_determine_selectors( + opencl_context_ptr pContext, + const color_rgba* pInput_etc_color5_and_inten, + etc_block* pOutput_blocks, + bool perceptual); + +} // namespace basisu diff --git a/thirdparty/basis_universal/encoder/basisu_uastc_enc.cpp b/thirdparty/basis_universal/encoder/basisu_uastc_enc.cpp index ca2b325693..271bbc6f1d 100644 --- a/thirdparty/basis_universal/encoder/basisu_uastc_enc.cpp +++ b/thirdparty/basis_universal/encoder/basisu_uastc_enc.cpp @@ -13,7 +13,11 @@ // See the License for the specific language governing permissions and // limitations under the License. #include "basisu_uastc_enc.h" + +#if BASISU_USE_ASTC_DECOMPRESS #include "basisu_astc_decomp.h" +#endif + #include "basisu_gpu_texture.h" #include "basisu_bc7enc.h" @@ -509,14 +513,14 @@ namespace basisu if (pForce_selectors == nullptr) { - int s0 = g_astc_unquant[endpoint_range][astc_results.m_endpoints[0]].m_unquant + g_astc_unquant[endpoint_range][astc_results.m_endpoints[2]].m_unquant + g_astc_unquant[endpoint_range][astc_results.m_endpoints[4]].m_unquant; - int s1 = g_astc_unquant[endpoint_range][astc_results.m_endpoints[1]].m_unquant + g_astc_unquant[endpoint_range][astc_results.m_endpoints[3]].m_unquant + g_astc_unquant[endpoint_range][astc_results.m_endpoints[5]].m_unquant; - if (s1 < s0) - { - std::swap(astc_results.m_endpoints[0], astc_results.m_endpoints[1]); - std::swap(astc_results.m_endpoints[2], astc_results.m_endpoints[3]); - std::swap(astc_results.m_endpoints[4], astc_results.m_endpoints[5]); - invert = true; + int s0 = g_astc_unquant[endpoint_range][astc_results.m_endpoints[0]].m_unquant + g_astc_unquant[endpoint_range][astc_results.m_endpoints[2]].m_unquant + g_astc_unquant[endpoint_range][astc_results.m_endpoints[4]].m_unquant; + int s1 = g_astc_unquant[endpoint_range][astc_results.m_endpoints[1]].m_unquant + g_astc_unquant[endpoint_range][astc_results.m_endpoints[3]].m_unquant + g_astc_unquant[endpoint_range][astc_results.m_endpoints[5]].m_unquant; + if (s1 < s0) + { + std::swap(astc_results.m_endpoints[0], astc_results.m_endpoints[1]); + std::swap(astc_results.m_endpoints[2], astc_results.m_endpoints[3]); + std::swap(astc_results.m_endpoints[4], astc_results.m_endpoints[5]); + invert = true; } } @@ -3562,7 +3566,8 @@ namespace basisu basist::color32 temp_block_unpacked[4][4]; success = basist::unpack_uastc(temp_block, (basist::color32 *)temp_block_unpacked, false); VALIDATE(success); - + +#if BASISU_USE_ASTC_DECOMPRESS // Now round trip to packed ASTC and back, then decode to pixels. uint32_t astc_data[4]; @@ -3590,6 +3595,7 @@ namespace basisu VALIDATE(temp_block_unpacked[y][x].c[3] == decoded_uastc_block[y][x].a); } } +#endif } #endif diff --git a/thirdparty/basis_universal/encoder/cppspmd_sse.h b/thirdparty/basis_universal/encoder/cppspmd_sse.h index 9a97eeb695..4c61bab7b1 100644 --- a/thirdparty/basis_universal/encoder/cppspmd_sse.h +++ b/thirdparty/basis_universal/encoder/cppspmd_sse.h @@ -1,13 +1,5 @@ // cppspmd_sse.h -// Note for Basis Universal: All of the "cppspmd" code and headers are OPTIONAL to Basis Universal. if BASISU_SUPPORT_SSE is 0, it will never be included and does not impact compilation. -// SSE 2 or 4.1 -// Originally written by Nicolas Guillemot, Jefferson Amstutz in the "CppSPMD" project. -// 4/20: Richard Geldreich: Macro control flow, more SIMD instruction sets, optimizations, supports using multiple SIMD instruction sets in same executable. Still a work in progress! -// -// Originally Copyright 2016 Nicolas Guillemot -// Changed from the MIT license to Apache 2.0 with permission from the author. -// -// Modifications/enhancements Copyright 2020-2021 Binomial LLC +// Copyright 2020-2022 Binomial LLC // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. @@ -20,6 +12,11 @@ // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. +// +// Notes for Basis Universal: +// All of the "cppspmd" code and headers are OPTIONAL to Basis Universal. if BASISU_SUPPORT_SSE is 0, it will never be included and does not impact compilation. +// The techniques used in this code were originally demonstrated for AVX2 by Nicolas Guillemot, Jefferson Amstutz in their "CppSPMD" project. +// This is new code for use in Basis Universal, although it uses the same general SPMD techniques in SSE 2/4. #include <stdlib.h> #include <stdint.h> @@ -1330,7 +1327,7 @@ struct spmd_kernel __m128 temp = _mm_add_ps(_mm_shuffle_ps(k3210, k3210, _MM_SHUFFLE(0, 1, 2, 3)), k3210); return _mm_cvtss_f32(_mm_add_ss(_mm_movehl_ps(temp, temp), temp)); } - + CPPSPMD_FORCE_INLINE int reduce_add(vint v) { __m128i k3210 = blendv_mask_epi32(_mm_setzero_si128(), v.m_value, m_exec.m_mask); @@ -1668,14 +1665,16 @@ CPPSPMD_FORCE_INLINE vint uniform_shift_right_epi16(const vint& a, const vint& b CPPSPMD_FORCE_INLINE vint undefined_vint() { return vint{ _mm_undefined_si128() }; } CPPSPMD_FORCE_INLINE vfloat undefined_vfloat() { return vfloat{ _mm_undefined_ps() }; } +CPPSPMD_FORCE_INLINE vint zero_vint() { return vint{ _mm_setzero_si128() }; } +CPPSPMD_FORCE_INLINE vfloat zero_vfloat() { return vfloat{ _mm_setzero_ps() }; } + CPPSPMD_FORCE_INLINE vint vint_lane_set(int v0, int v1, int v2, int v3) { return vint{ _mm_set_epi32(v3, v2, v1, v0) }; } CPPSPMD_FORCE_INLINE vfloat vfloat_lane_set(float v0, float v1, float v2, float v3) { return vfloat{ _mm_set_ps(v3, v2, v1, v0) }; } - CPPSPMD_FORCE_INLINE vint vint_lane_set_r(int v3, int v2, int v1, int v0) { return vint{ _mm_set_epi32(v3, v2, v1, v0) }; } CPPSPMD_FORCE_INLINE vfloat vfloat_lane_set_r(float v3, float v2, float v1, float v0) { return vfloat{ _mm_set_ps(v3, v2, v1, v0) }; } - // control is an 8-bit immediate value containing 4 2-bit indices which shuffles the int32's in each 128-bit lane. #define VINT_LANE_SHUFFLE_EPI32(a, control) vint(_mm_shuffle_epi32((a).m_value, control)) +#define VFLOAT_LANE_SHUFFLE_PS(a, b, control) vfloat(_mm_shuffle_ps((a).m_value, (b).m_value, control)) // control is an 8-bit immediate value containing 4 2-bit indices which shuffles the int16's in either the high or low 64-bit lane. #define VINT_LANE_SHUFFLELO_EPI16(a, control) vint(_mm_shufflelo_epi16((a).m_value, control)) diff --git a/thirdparty/basis_universal/encoder/jpgd.cpp b/thirdparty/basis_universal/encoder/jpgd.cpp index 460834409d..fec8b71439 100644 --- a/thirdparty/basis_universal/encoder/jpgd.cpp +++ b/thirdparty/basis_universal/encoder/jpgd.cpp @@ -23,17 +23,6 @@ // v1.04, May. 19, 2012: Code tweaks to fix VS2008 static code analysis warnings // v2.00, March 20, 2020: Fuzzed with zzuf and afl. Fixed several issues, converted most assert()'s to run-time checks. Added chroma upsampling. Removed freq. domain upsampling. gcc/clang warnings. // -#ifdef _MSC_VER -#ifndef BASISU_NO_ITERATOR_DEBUG_LEVEL -#if defined(_DEBUG) || defined(DEBUG) -#define _ITERATOR_DEBUG_LEVEL 1 -#define _SECURE_SCL 1 -#else -#define _SECURE_SCL 0 -#define _ITERATOR_DEBUG_LEVEL 0 -#endif -#endif -#endif #include "jpgd.h" #include <string.h> @@ -2085,7 +2074,7 @@ namespace jpgd { if (setjmp(m_jmp_state)) return JPGD_FAILED; - const bool chroma_y_filtering = (m_flags & cFlagLinearChromaFiltering) && ((m_scan_type == JPGD_YH2V2) || (m_scan_type == JPGD_YH1V2)); + const bool chroma_y_filtering = (m_flags & cFlagLinearChromaFiltering) && ((m_scan_type == JPGD_YH2V2) || (m_scan_type == JPGD_YH1V2)) && (m_image_x_size >= 2) && (m_image_y_size >= 2); if (chroma_y_filtering) { std::swap(m_pSample_buf, m_pSample_buf_prev); @@ -2114,7 +2103,7 @@ namespace jpgd { if (m_total_lines_left == 0) return JPGD_DONE; - const bool chroma_y_filtering = (m_flags & cFlagLinearChromaFiltering) && ((m_scan_type == JPGD_YH2V2) || (m_scan_type == JPGD_YH1V2)); + const bool chroma_y_filtering = (m_flags & cFlagLinearChromaFiltering) && ((m_scan_type == JPGD_YH2V2) || (m_scan_type == JPGD_YH1V2)) && (m_image_x_size >= 2) && (m_image_y_size >= 2); bool get_another_mcu_row = false; bool got_mcu_early = false; @@ -2144,7 +2133,7 @@ namespace jpgd { { case JPGD_YH2V2: { - if (m_flags & cFlagLinearChromaFiltering) + if ((m_flags & cFlagLinearChromaFiltering) && (m_image_x_size >= 2) && (m_image_y_size >= 2)) { if (m_num_buffered_scanlines == 1) { @@ -2173,7 +2162,7 @@ namespace jpgd { } case JPGD_YH2V1: { - if (m_flags & cFlagLinearChromaFiltering) + if ((m_flags & cFlagLinearChromaFiltering) && (m_image_x_size >= 2) && (m_image_y_size >= 2)) H2V1ConvertFiltered(); else H2V1Convert(); diff --git a/thirdparty/basis_universal/encoder/lodepng.cpp b/thirdparty/basis_universal/encoder/lodepng.cpp deleted file mode 100644 index 63adcf49b6..0000000000 --- a/thirdparty/basis_universal/encoder/lodepng.cpp +++ /dev/null @@ -1,6008 +0,0 @@ -/* -LodePNG version 20190210 - -Copyright (c) 2005-2019 Lode Vandevenne - -This software is provided 'as-is', without any express or implied -warranty. In no event will the authors be held liable for any damages -arising from the use of this software. - -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it -freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - - 3. This notice may not be removed or altered from any source - distribution. -*/ - -/* -The manual and changelog are in the header file "lodepng.h" -Rename this file to lodepng.cpp to use it for C++, or to lodepng.c to use it for C. -*/ - -#ifdef _MSC_VER -#define _CRT_SECURE_NO_DEPRECATE -#pragma warning (disable : 4201) - -#ifndef BASISU_NO_ITERATOR_DEBUG_LEVEL -#if defined(_DEBUG) || defined(DEBUG) -#define _ITERATOR_DEBUG_LEVEL 1 -#define _SECURE_SCL 1 -#else -#define _SECURE_SCL 0 -#define _ITERATOR_DEBUG_LEVEL 0 -#endif -#endif -#endif - -#include "lodepng.h" - -#include <limits.h> /* LONG_MAX */ -#include <stdio.h> /* file handling */ -#include <stdlib.h> /* allocations */ - -#if defined(_MSC_VER) && (_MSC_VER >= 1310) /*Visual Studio: A few warning types are not desired here.*/ -#pragma warning( disable : 4244 ) /*implicit conversions: not warned by gcc -Wall -Wextra and requires too much casts*/ -#pragma warning( disable : 4996 ) /*VS does not like fopen, but fopen_s is not standard C so unusable here*/ -#endif /*_MSC_VER */ - -const char* LODEPNG_VERSION_STRING = "20190210"; - -/* -This source file is built up in the following large parts. The code sections -with the "LODEPNG_COMPILE_" #defines divide this up further in an intermixed way. --Tools for C and common code for PNG and Zlib --C Code for Zlib (huffman, deflate, ...) --C Code for PNG (file format chunks, adam7, PNG filters, color conversions, ...) --The C++ wrapper around all of the above -*/ - -/*The malloc, realloc and free functions defined here with "lodepng_" in front -of the name, so that you can easily change them to others related to your -platform if needed. Everything else in the code calls these. Pass --DLODEPNG_NO_COMPILE_ALLOCATORS to the compiler, or comment out -#define LODEPNG_COMPILE_ALLOCATORS in the header, to disable the ones here and -define them in your own project's source files without needing to change -lodepng source code. Don't forget to remove "static" if you copypaste them -from here.*/ - -#ifdef LODEPNG_COMPILE_ALLOCATORS -static void* lodepng_malloc(size_t size) { -#ifdef LODEPNG_MAX_ALLOC - if(size > LODEPNG_MAX_ALLOC) return 0; -#endif - return malloc(size); -} - -static void* lodepng_realloc(void* ptr, size_t new_size) { -#ifdef LODEPNG_MAX_ALLOC - if(new_size > LODEPNG_MAX_ALLOC) return 0; -#endif - return realloc(ptr, new_size); -} - -static void lodepng_free(void* ptr) { - free(ptr); -} -#else /*LODEPNG_COMPILE_ALLOCATORS*/ -void* lodepng_malloc(size_t size); -void* lodepng_realloc(void* ptr, size_t new_size); -void lodepng_free(void* ptr); -#endif /*LODEPNG_COMPILE_ALLOCATORS*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* // Tools for C, and common code for PNG and Zlib. // */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#define LODEPNG_MAX(a, b) (((a) > (b)) ? (a) : (b)) -#define LODEPNG_MIN(a, b) (((a) < (b)) ? (a) : (b)) - -/* -Often in case of an error a value is assigned to a variable and then it breaks -out of a loop (to go to the cleanup phase of a function). This macro does that. -It makes the error handling code shorter and more readable. - -Example: if(!uivector_resizev(&frequencies_ll, 286, 0)) ERROR_BREAK(83); -*/ -#define CERROR_BREAK(errorvar, code){\ - errorvar = code;\ - break;\ -} - -/*version of CERROR_BREAK that assumes the common case where the error variable is named "error"*/ -#define ERROR_BREAK(code) CERROR_BREAK(error, code) - -/*Set error var to the error code, and return it.*/ -#define CERROR_RETURN_ERROR(errorvar, code){\ - errorvar = code;\ - return code;\ -} - -/*Try the code, if it returns error, also return the error.*/ -#define CERROR_TRY_RETURN(call){\ - unsigned error = call;\ - if(error) return error;\ -} - -/*Set error var to the error code, and return from the void function.*/ -#define CERROR_RETURN(errorvar, code){\ - errorvar = code;\ - return;\ -} - -/* -About uivector, ucvector and string: --All of them wrap dynamic arrays or text strings in a similar way. --LodePNG was originally written in C++. The vectors replace the std::vectors that were used in the C++ version. --The string tools are made to avoid problems with compilers that declare things like strncat as deprecated. --They're not used in the interface, only internally in this file as static functions. --As with many other structs in this file, the init and cleanup functions serve as ctor and dtor. -*/ - -#ifdef LODEPNG_COMPILE_ZLIB -/*dynamic vector of unsigned ints*/ -typedef struct uivector { - unsigned* data; - size_t size; /*size in number of unsigned longs*/ - size_t allocsize; /*allocated size in bytes*/ -} uivector; - -static void uivector_cleanup(void* p) { - ((uivector*)p)->size = ((uivector*)p)->allocsize = 0; - lodepng_free(((uivector*)p)->data); - ((uivector*)p)->data = NULL; -} - -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned uivector_reserve(uivector* p, size_t allocsize) { - if(allocsize > p->allocsize) { - size_t newsize = (allocsize > p->allocsize * 2) ? allocsize : (allocsize * 3 / 2); - void* data = lodepng_realloc(p->data, newsize); - if(data) { - p->allocsize = newsize; - p->data = (unsigned*)data; - } - else return 0; /*error: not enough memory*/ - } - return 1; -} - -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned uivector_resize(uivector* p, size_t size) { - if(!uivector_reserve(p, size * sizeof(unsigned))) return 0; - p->size = size; - return 1; /*success*/ -} - -/*resize and give all new elements the value*/ -static unsigned uivector_resizev(uivector* p, size_t size, unsigned value) { - size_t oldsize = p->size, i; - if(!uivector_resize(p, size)) return 0; - for(i = oldsize; i < size; ++i) p->data[i] = value; - return 1; -} - -static void uivector_init(uivector* p) { - p->data = NULL; - p->size = p->allocsize = 0; -} - -#ifdef LODEPNG_COMPILE_ENCODER -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned uivector_push_back(uivector* p, unsigned c) { - if(!uivector_resize(p, p->size + 1)) return 0; - if (!p->data) return 0; - p->data[p->size - 1] = c; - return 1; -} -#endif /*LODEPNG_COMPILE_ENCODER*/ -#endif /*LODEPNG_COMPILE_ZLIB*/ - -/* /////////////////////////////////////////////////////////////////////////// */ - -/*dynamic vector of unsigned chars*/ -typedef struct ucvector { - unsigned char* data; - size_t size; /*used size*/ - size_t allocsize; /*allocated size*/ -} ucvector; - -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned ucvector_reserve(ucvector* p, size_t allocsize) { - if(allocsize > p->allocsize) { - size_t newsize = (allocsize > p->allocsize * 2) ? allocsize : (allocsize * 3 / 2); - void* data = lodepng_realloc(p->data, newsize); - if(data) { - p->allocsize = newsize; - p->data = (unsigned char*)data; - } - else return 0; /*error: not enough memory*/ - } - return 1; -} - -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned ucvector_resize(ucvector* p, size_t size) { - if(!ucvector_reserve(p, size * sizeof(unsigned char))) return 0; - p->size = size; - return 1; /*success*/ -} - -#ifdef LODEPNG_COMPILE_PNG - -static void ucvector_cleanup(void* p) { - ((ucvector*)p)->size = ((ucvector*)p)->allocsize = 0; - lodepng_free(((ucvector*)p)->data); - ((ucvector*)p)->data = NULL; -} - -static void ucvector_init(ucvector* p) { - p->data = NULL; - p->size = p->allocsize = 0; -} -#endif /*LODEPNG_COMPILE_PNG*/ - -#ifdef LODEPNG_COMPILE_ZLIB -/*you can both convert from vector to buffer&size and vica versa. If you use -init_buffer to take over a buffer and size, it is not needed to use cleanup*/ -static void ucvector_init_buffer(ucvector* p, unsigned char* buffer, size_t size) { - p->data = buffer; - p->allocsize = p->size = size; -} -#endif /*LODEPNG_COMPILE_ZLIB*/ - -#if (defined(LODEPNG_COMPILE_PNG) && defined(LODEPNG_COMPILE_ANCILLARY_CHUNKS)) || defined(LODEPNG_COMPILE_ENCODER) -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned ucvector_push_back(ucvector* p, unsigned char c) { - if(!ucvector_resize(p, p->size + 1)) return 0; - p->data[p->size - 1] = c; - return 1; -} -#endif /*defined(LODEPNG_COMPILE_PNG) || defined(LODEPNG_COMPILE_ENCODER)*/ - - -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_PNG -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - -/*free string pointer and set it to NULL*/ -static void string_cleanup(char** out) { - lodepng_free(*out); - *out = NULL; -} - -/* dynamically allocates a new string with a copy of the null terminated input text */ -static char* alloc_string(const char* in) { - size_t insize = strlen(in); - char* out = (char*)lodepng_malloc(insize + 1); - if(out) { - size_t i; - for(i = 0; i != insize; ++i) { - out[i] = in[i]; - } - out[i] = 0; - } - return out; -} -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -#endif /*LODEPNG_COMPILE_PNG*/ - -/* ////////////////////////////////////////////////////////////////////////// */ - -unsigned lodepng_read32bitInt(const unsigned char* buffer) { - return (unsigned)((buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | buffer[3]); -} - -#if defined(LODEPNG_COMPILE_PNG) || defined(LODEPNG_COMPILE_ENCODER) -/*buffer must have at least 4 allocated bytes available*/ -static void lodepng_set32bitInt(unsigned char* buffer, unsigned value) { - buffer[0] = (unsigned char)((value >> 24) & 0xff); - buffer[1] = (unsigned char)((value >> 16) & 0xff); - buffer[2] = (unsigned char)((value >> 8) & 0xff); - buffer[3] = (unsigned char)((value ) & 0xff); -} -#endif /*defined(LODEPNG_COMPILE_PNG) || defined(LODEPNG_COMPILE_ENCODER)*/ - -#ifdef LODEPNG_COMPILE_ENCODER -static void lodepng_add32bitInt(ucvector* buffer, unsigned value) { - ucvector_resize(buffer, buffer->size + 4); /*todo: give error if resize failed*/ - lodepng_set32bitInt(&buffer->data[buffer->size - 4], value); -} -#endif /*LODEPNG_COMPILE_ENCODER*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / File IO / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_DISK - -/* returns negative value on error. This should be pure C compatible, so no fstat. */ -static long lodepng_filesize(const char* filename) { - FILE* file; - long size; - file = fopen(filename, "rb"); - if(!file) return -1; - - if(fseek(file, 0, SEEK_END) != 0) { - fclose(file); - return -1; - } - - size = ftell(file); - /* It may give LONG_MAX as directory size, this is invalid for us. */ - if(size == LONG_MAX) size = -1; - - fclose(file); - return size; -} - -/* load file into buffer that already has the correct allocated size. Returns error code.*/ -static unsigned lodepng_buffer_file(unsigned char* out, size_t size, const char* filename) { - FILE* file; - size_t readsize; - file = fopen(filename, "rb"); - if(!file) return 78; - - readsize = fread(out, 1, size, file); - fclose(file); - - if (readsize != size) return 78; - return 0; -} - -unsigned lodepng_load_file(unsigned char** out, size_t* outsize, const char* filename) { - long size = lodepng_filesize(filename); - if (size < 0) return 78; - *outsize = (size_t)size; - - *out = (unsigned char*)lodepng_malloc((size_t)size); - if(!(*out) && size > 0) return 83; /*the above malloc failed*/ - - return lodepng_buffer_file(*out, (size_t)size, filename); -} - -/*write given buffer to the file, overwriting the file, it doesn't append to it.*/ -unsigned lodepng_save_file(const unsigned char* buffer, size_t buffersize, const char* filename) { - FILE* file; - file = fopen(filename, "wb" ); - if(!file) return 79; - fwrite(buffer, 1, buffersize, file); - fclose(file); - return 0; -} - -#endif /*LODEPNG_COMPILE_DISK*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* // End of common code and tools. Begin of Zlib related code. // */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_ZLIB -#ifdef LODEPNG_COMPILE_ENCODER -/*TODO: this ignores potential out of memory errors*/ -#define addBitToStream(/*size_t**/ bitpointer, /*ucvector**/ bitstream, /*unsigned char*/ bit){\ - /*add a new byte at the end*/\ - if(((*bitpointer) & 7) == 0) ucvector_push_back(bitstream, (unsigned char)0);\ - /*earlier bit of huffman code is in a lesser significant bit of an earlier byte*/\ - (bitstream->data[bitstream->size - 1]) |= (bit << ((*bitpointer) & 0x7));\ - ++(*bitpointer);\ -} - -static void addBitsToStream(size_t* bitpointer, ucvector* bitstream, unsigned value, size_t nbits) { - size_t i; - for(i = 0; i != nbits; ++i) addBitToStream(bitpointer, bitstream, (unsigned char)((value >> i) & 1)); -} - -static void addBitsToStreamReversed(size_t* bitpointer, ucvector* bitstream, unsigned value, size_t nbits) { - size_t i; - for(i = 0; i != nbits; ++i) addBitToStream(bitpointer, bitstream, (unsigned char)((value >> (nbits - 1 - i)) & 1)); -} -#endif /*LODEPNG_COMPILE_ENCODER*/ - -#ifdef LODEPNG_COMPILE_DECODER - -#define READBIT(bitpointer, bitstream) ((bitstream[bitpointer >> 3] >> (bitpointer & 0x7)) & (unsigned char)1) - -static unsigned char readBitFromStream(size_t* bitpointer, const unsigned char* bitstream) { - unsigned char result = (unsigned char)(READBIT(*bitpointer, bitstream)); - ++(*bitpointer); - return result; -} - -static unsigned readBitsFromStream(size_t* bitpointer, const unsigned char* bitstream, size_t nbits) { - unsigned result = 0, i; - for(i = 0; i != nbits; ++i) { - result += ((unsigned)READBIT(*bitpointer, bitstream)) << i; - ++(*bitpointer); - } - return result; -} -#endif /*LODEPNG_COMPILE_DECODER*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Deflate - Huffman / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#define FIRST_LENGTH_CODE_INDEX 257 -#define LAST_LENGTH_CODE_INDEX 285 -/*256 literals, the end code, some length codes, and 2 unused codes*/ -#define NUM_DEFLATE_CODE_SYMBOLS 288 -/*the distance codes have their own symbols, 30 used, 2 unused*/ -#define NUM_DISTANCE_SYMBOLS 32 -/*the code length codes. 0-15: code lengths, 16: copy previous 3-6 times, 17: 3-10 zeros, 18: 11-138 zeros*/ -#define NUM_CODE_LENGTH_CODES 19 - -/*the base lengths represented by codes 257-285*/ -static const unsigned LENGTHBASE[29] - = {3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, - 67, 83, 99, 115, 131, 163, 195, 227, 258}; - -/*the extra bits used by codes 257-285 (added to base length)*/ -static const unsigned LENGTHEXTRA[29] - = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, - 4, 4, 4, 4, 5, 5, 5, 5, 0}; - -/*the base backwards distances (the bits of distance codes appear after length codes and use their own huffman tree)*/ -static const unsigned DISTANCEBASE[30] - = {1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, - 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; - -/*the extra bits of backwards distances (added to base)*/ -static const unsigned DISTANCEEXTRA[30] - = {0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, - 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; - -/*the order in which "code length alphabet code lengths" are stored, out of this -the huffman tree of the dynamic huffman tree lengths is generated*/ -static const unsigned CLCL_ORDER[NUM_CODE_LENGTH_CODES] - = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - -/* ////////////////////////////////////////////////////////////////////////// */ - -/* -Huffman tree struct, containing multiple representations of the tree -*/ -typedef struct HuffmanTree { - unsigned* tree2d; - unsigned* tree1d; - unsigned* lengths; /*the lengths of the codes of the 1d-tree*/ - unsigned maxbitlen; /*maximum number of bits a single code can get*/ - unsigned numcodes; /*number of symbols in the alphabet = number of codes*/ -} HuffmanTree; - -/*function used for debug purposes to draw the tree in ascii art with C++*/ -/* -static void HuffmanTree_draw(HuffmanTree* tree) { - std::cout << "tree. length: " << tree->numcodes << " maxbitlen: " << tree->maxbitlen << std::endl; - for(size_t i = 0; i != tree->tree1d.size; ++i) { - if(tree->lengths.data[i]) - std::cout << i << " " << tree->tree1d.data[i] << " " << tree->lengths.data[i] << std::endl; - } - std::cout << std::endl; -}*/ - -static void HuffmanTree_init(HuffmanTree* tree) { - tree->tree2d = 0; - tree->tree1d = 0; - tree->lengths = 0; -} - -static void HuffmanTree_cleanup(HuffmanTree* tree) { - lodepng_free(tree->tree2d); - lodepng_free(tree->tree1d); - lodepng_free(tree->lengths); -} - -/*the tree representation used by the decoder. return value is error*/ -static unsigned HuffmanTree_make2DTree(HuffmanTree* tree) { - unsigned nodefilled = 0; /*up to which node it is filled*/ - unsigned treepos = 0; /*position in the tree (1 of the numcodes columns)*/ - unsigned n, i; - - tree->tree2d = (unsigned*)lodepng_malloc(tree->numcodes * 2 * sizeof(unsigned)); - if(!tree->tree2d) return 83; /*alloc fail*/ - - /* - convert tree1d[] to tree2d[][]. In the 2D array, a value of 32767 means - uninited, a value >= numcodes is an address to another bit, a value < numcodes - is a code. The 2 rows are the 2 possible bit values (0 or 1), there are as - many columns as codes - 1. - A good huffman tree has N * 2 - 1 nodes, of which N - 1 are internal nodes. - Here, the internal nodes are stored (what their 0 and 1 option point to). - There is only memory for such good tree currently, if there are more nodes - (due to too long length codes), error 55 will happen - */ - for(n = 0; n < tree->numcodes * 2; ++n) { - tree->tree2d[n] = 32767; /*32767 here means the tree2d isn't filled there yet*/ - } - - for(n = 0; n < tree->numcodes; ++n) /*the codes*/ { - for(i = 0; i != tree->lengths[n]; ++i) /*the bits for this code*/ { - unsigned char bit = (unsigned char)((tree->tree1d[n] >> (tree->lengths[n] - i - 1)) & 1); - /*oversubscribed, see comment in lodepng_error_text*/ - if(treepos > 2147483647 || treepos + 2 > tree->numcodes) return 55; - if(tree->tree2d[2 * treepos + bit] == 32767) /*not yet filled in*/ { - if(i + 1 == tree->lengths[n]) /*last bit*/ { - tree->tree2d[2 * treepos + bit] = n; /*put the current code in it*/ - treepos = 0; - } else { - /*put address of the next step in here, first that address has to be found of course - (it's just nodefilled + 1)...*/ - ++nodefilled; - /*addresses encoded with numcodes added to it*/ - tree->tree2d[2 * treepos + bit] = nodefilled + tree->numcodes; - treepos = nodefilled; - } - } - else treepos = tree->tree2d[2 * treepos + bit] - tree->numcodes; - } - } - - for(n = 0; n < tree->numcodes * 2; ++n) { - if(tree->tree2d[n] == 32767) tree->tree2d[n] = 0; /*remove possible remaining 32767's*/ - } - - return 0; -} - -/* -Second step for the ...makeFromLengths and ...makeFromFrequencies functions. -numcodes, lengths and maxbitlen must already be filled in correctly. return -value is error. -*/ -static unsigned HuffmanTree_makeFromLengths2(HuffmanTree* tree) { - uivector blcount; - uivector nextcode; - unsigned error = 0; - unsigned bits, n; - - uivector_init(&blcount); - uivector_init(&nextcode); - - tree->tree1d = (unsigned*)lodepng_malloc(tree->numcodes * sizeof(unsigned)); - if(!tree->tree1d) error = 83; /*alloc fail*/ - - if(!uivector_resizev(&blcount, tree->maxbitlen + 1, 0) - || !uivector_resizev(&nextcode, tree->maxbitlen + 1, 0)) - error = 83; /*alloc fail*/ - - if(!error) { - /*step 1: count number of instances of each code length*/ - for(bits = 0; bits != tree->numcodes; ++bits) ++blcount.data[tree->lengths[bits]]; - /*step 2: generate the nextcode values*/ - for(bits = 1; bits <= tree->maxbitlen; ++bits) { - nextcode.data[bits] = (nextcode.data[bits - 1] + blcount.data[bits - 1]) << 1; - } - /*step 3: generate all the codes*/ - for(n = 0; n != tree->numcodes; ++n) { - if(tree->lengths[n] != 0) tree->tree1d[n] = nextcode.data[tree->lengths[n]]++; - } - } - - uivector_cleanup(&blcount); - uivector_cleanup(&nextcode); - - if(!error) return HuffmanTree_make2DTree(tree); - else return error; -} - -/* -given the code lengths (as stored in the PNG file), generate the tree as defined -by Deflate. maxbitlen is the maximum bits that a code in the tree can have. -return value is error. -*/ -static unsigned HuffmanTree_makeFromLengths(HuffmanTree* tree, const unsigned* bitlen, - size_t numcodes, unsigned maxbitlen) { - unsigned i; - tree->lengths = (unsigned*)lodepng_malloc(numcodes * sizeof(unsigned)); - if(!tree->lengths) return 83; /*alloc fail*/ - for(i = 0; i != numcodes; ++i) tree->lengths[i] = bitlen[i]; - tree->numcodes = (unsigned)numcodes; /*number of symbols*/ - tree->maxbitlen = maxbitlen; - return HuffmanTree_makeFromLengths2(tree); -} - -#ifdef LODEPNG_COMPILE_ENCODER - -/*BPM: Boundary Package Merge, see "A Fast and Space-Economical Algorithm for Length-Limited Coding", -Jyrki Katajainen, Alistair Moffat, Andrew Turpin, 1995.*/ - -/*chain node for boundary package merge*/ -typedef struct BPMNode { - int weight; /*the sum of all weights in this chain*/ - unsigned index; /*index of this leaf node (called "count" in the paper)*/ - struct BPMNode* tail; /*the next nodes in this chain (null if last)*/ - int in_use; -} BPMNode; - -/*lists of chains*/ -typedef struct BPMLists { - /*memory pool*/ - unsigned memsize; - BPMNode* memory; - unsigned numfree; - unsigned nextfree; - BPMNode** freelist; - /*two heads of lookahead chains per list*/ - unsigned listsize; - BPMNode** chains0; - BPMNode** chains1; -} BPMLists; - -/*creates a new chain node with the given parameters, from the memory in the lists */ -static BPMNode* bpmnode_create(BPMLists* lists, int weight, unsigned index, BPMNode* tail) { - unsigned i; - BPMNode* result; - - /*memory full, so garbage collect*/ - if(lists->nextfree >= lists->numfree) { - /*mark only those that are in use*/ - for(i = 0; i != lists->memsize; ++i) lists->memory[i].in_use = 0; - for(i = 0; i != lists->listsize; ++i) { - BPMNode* node; - for(node = lists->chains0[i]; node != 0; node = node->tail) node->in_use = 1; - for(node = lists->chains1[i]; node != 0; node = node->tail) node->in_use = 1; - } - /*collect those that are free*/ - lists->numfree = 0; - for(i = 0; i != lists->memsize; ++i) { - if(!lists->memory[i].in_use) lists->freelist[lists->numfree++] = &lists->memory[i]; - } - lists->nextfree = 0; - } - - result = lists->freelist[lists->nextfree++]; - result->weight = weight; - result->index = index; - result->tail = tail; - return result; -} - -/*sort the leaves with stable mergesort*/ -static void bpmnode_sort(BPMNode* leaves, size_t num) { - BPMNode* mem = (BPMNode*)lodepng_malloc(sizeof(*leaves) * num); - size_t width, counter = 0; - for(width = 1; width < num; width *= 2) { - BPMNode* a = (counter & 1) ? mem : leaves; - BPMNode* b = (counter & 1) ? leaves : mem; - size_t p; - for(p = 0; p < num; p += 2 * width) { - size_t q = (p + width > num) ? num : (p + width); - size_t r = (p + 2 * width > num) ? num : (p + 2 * width); - size_t i = p, j = q, k; - for(k = p; k < r; k++) { - if(i < q && (j >= r || a[i].weight <= a[j].weight)) b[k] = a[i++]; - else b[k] = a[j++]; - } - } - counter++; - } - if(counter & 1) memcpy(leaves, mem, sizeof(*leaves) * num); - lodepng_free(mem); -} - -/*Boundary Package Merge step, numpresent is the amount of leaves, and c is the current chain.*/ -static void boundaryPM(BPMLists* lists, BPMNode* leaves, size_t numpresent, int c, int num) { - unsigned lastindex = lists->chains1[c]->index; - - if(c == 0) { - if(lastindex >= numpresent) return; - lists->chains0[c] = lists->chains1[c]; - lists->chains1[c] = bpmnode_create(lists, leaves[lastindex].weight, lastindex + 1, 0); - } else { - /*sum of the weights of the head nodes of the previous lookahead chains.*/ - int sum = lists->chains0[c - 1]->weight + lists->chains1[c - 1]->weight; - lists->chains0[c] = lists->chains1[c]; - if(lastindex < numpresent && sum > leaves[lastindex].weight) { - lists->chains1[c] = bpmnode_create(lists, leaves[lastindex].weight, lastindex + 1, lists->chains1[c]->tail); - return; - } - lists->chains1[c] = bpmnode_create(lists, sum, lastindex, lists->chains1[c - 1]); - /*in the end we are only interested in the chain of the last list, so no - need to recurse if we're at the last one (this gives measurable speedup)*/ - if(num + 1 < (int)(2 * numpresent - 2)) { - boundaryPM(lists, leaves, numpresent, c - 1, num); - boundaryPM(lists, leaves, numpresent, c - 1, num); - } - } -} - -unsigned lodepng_huffman_code_lengths(unsigned* lengths, const unsigned* frequencies, - size_t numcodes, unsigned maxbitlen) { - unsigned error = 0; - unsigned i; - size_t numpresent = 0; /*number of symbols with non-zero frequency*/ - BPMNode* leaves; /*the symbols, only those with > 0 frequency*/ - - if(numcodes == 0) return 80; /*error: a tree of 0 symbols is not supposed to be made*/ - if((1u << maxbitlen) < (unsigned)numcodes) return 80; /*error: represent all symbols*/ - - leaves = (BPMNode*)lodepng_malloc(numcodes * sizeof(*leaves)); - if(!leaves) return 83; /*alloc fail*/ - - for(i = 0; i != numcodes; ++i) { - if(frequencies[i] > 0) { - leaves[numpresent].weight = (int)frequencies[i]; - leaves[numpresent].index = i; - ++numpresent; - } - } - - for(i = 0; i != numcodes; ++i) lengths[i] = 0; - - /*ensure at least two present symbols. There should be at least one symbol - according to RFC 1951 section 3.2.7. Some decoders incorrectly require two. To - make these work as well ensure there are at least two symbols. The - Package-Merge code below also doesn't work correctly if there's only one - symbol, it'd give it the theoritical 0 bits but in practice zlib wants 1 bit*/ - if(numpresent == 0) { - lengths[0] = lengths[1] = 1; /*note that for RFC 1951 section 3.2.7, only lengths[0] = 1 is needed*/ - } else if(numpresent == 1) { - lengths[leaves[0].index] = 1; - lengths[leaves[0].index == 0 ? 1 : 0] = 1; - } else { - BPMLists lists; - BPMNode* node; - - bpmnode_sort(leaves, numpresent); - - lists.listsize = maxbitlen; - lists.memsize = 2 * maxbitlen * (maxbitlen + 1); - lists.nextfree = 0; - lists.numfree = lists.memsize; - lists.memory = (BPMNode*)lodepng_malloc(lists.memsize * sizeof(*lists.memory)); - lists.freelist = (BPMNode**)lodepng_malloc(lists.memsize * sizeof(BPMNode*)); - lists.chains0 = (BPMNode**)lodepng_malloc(lists.listsize * sizeof(BPMNode*)); - lists.chains1 = (BPMNode**)lodepng_malloc(lists.listsize * sizeof(BPMNode*)); - if(!lists.memory || !lists.freelist || !lists.chains0 || !lists.chains1) error = 83; /*alloc fail*/ - - if(!error) { - for(i = 0; i != lists.memsize; ++i) lists.freelist[i] = &lists.memory[i]; - - bpmnode_create(&lists, leaves[0].weight, 1, 0); - bpmnode_create(&lists, leaves[1].weight, 2, 0); - - for(i = 0; i != lists.listsize; ++i) { - lists.chains0[i] = &lists.memory[0]; - lists.chains1[i] = &lists.memory[1]; - } - - /*each boundaryPM call adds one chain to the last list, and we need 2 * numpresent - 2 chains.*/ - for(i = 2; i != 2 * numpresent - 2; ++i) boundaryPM(&lists, leaves, numpresent, (int)maxbitlen - 1, (int)i); - - for(node = lists.chains1[maxbitlen - 1]; node; node = node->tail) { - for(i = 0; i != node->index; ++i) ++lengths[leaves[i].index]; - } - } - - lodepng_free(lists.memory); - lodepng_free(lists.freelist); - lodepng_free(lists.chains0); - lodepng_free(lists.chains1); - } - - lodepng_free(leaves); - return error; -} - -/*Create the Huffman tree given the symbol frequencies*/ -static unsigned HuffmanTree_makeFromFrequencies(HuffmanTree* tree, const unsigned* frequencies, - size_t mincodes, size_t numcodes, unsigned maxbitlen) { - unsigned error = 0; - while(!frequencies[numcodes - 1] && numcodes > mincodes) --numcodes; /*trim zeroes*/ - tree->maxbitlen = maxbitlen; - tree->numcodes = (unsigned)numcodes; /*number of symbols*/ - tree->lengths = (unsigned*)lodepng_realloc(tree->lengths, numcodes * sizeof(unsigned)); - if(!tree->lengths) return 83; /*alloc fail*/ - /*initialize all lengths to 0*/ - memset(tree->lengths, 0, numcodes * sizeof(unsigned)); - - error = lodepng_huffman_code_lengths(tree->lengths, frequencies, numcodes, maxbitlen); - if(!error) error = HuffmanTree_makeFromLengths2(tree); - return error; -} - -static unsigned HuffmanTree_getCode(const HuffmanTree* tree, unsigned index) { - return tree->tree1d[index]; -} - -static unsigned HuffmanTree_getLength(const HuffmanTree* tree, unsigned index) { - return tree->lengths[index]; -} -#endif /*LODEPNG_COMPILE_ENCODER*/ - -/*get the literal and length code tree of a deflated block with fixed tree, as per the deflate specification*/ -static unsigned generateFixedLitLenTree(HuffmanTree* tree) { - unsigned i, error = 0; - unsigned* bitlen = (unsigned*)lodepng_malloc(NUM_DEFLATE_CODE_SYMBOLS * sizeof(unsigned)); - if(!bitlen) return 83; /*alloc fail*/ - - /*288 possible codes: 0-255=literals, 256=endcode, 257-285=lengthcodes, 286-287=unused*/ - for(i = 0; i <= 143; ++i) bitlen[i] = 8; - for(i = 144; i <= 255; ++i) bitlen[i] = 9; - for(i = 256; i <= 279; ++i) bitlen[i] = 7; - for(i = 280; i <= 287; ++i) bitlen[i] = 8; - - error = HuffmanTree_makeFromLengths(tree, bitlen, NUM_DEFLATE_CODE_SYMBOLS, 15); - - lodepng_free(bitlen); - return error; -} - -/*get the distance code tree of a deflated block with fixed tree, as specified in the deflate specification*/ -static unsigned generateFixedDistanceTree(HuffmanTree* tree) { - unsigned i, error = 0; - unsigned* bitlen = (unsigned*)lodepng_malloc(NUM_DISTANCE_SYMBOLS * sizeof(unsigned)); - if(!bitlen) return 83; /*alloc fail*/ - - /*there are 32 distance codes, but 30-31 are unused*/ - for(i = 0; i != NUM_DISTANCE_SYMBOLS; ++i) bitlen[i] = 5; - error = HuffmanTree_makeFromLengths(tree, bitlen, NUM_DISTANCE_SYMBOLS, 15); - - lodepng_free(bitlen); - return error; -} - -#ifdef LODEPNG_COMPILE_DECODER - -/* -returns the code, or (unsigned)(-1) if error happened -inbitlength is the length of the complete buffer, in bits (so its byte length times 8) -*/ -static unsigned huffmanDecodeSymbol(const unsigned char* in, size_t* bp, - const HuffmanTree* codetree, size_t inbitlength) { - unsigned treepos = 0, ct; - for(;;) { - if(*bp >= inbitlength) return (unsigned)(-1); /*error: end of input memory reached without endcode*/ - /* - decode the symbol from the tree. The "readBitFromStream" code is inlined in - the expression below because this is the biggest bottleneck while decoding - */ - ct = codetree->tree2d[(treepos << 1) + READBIT(*bp, in)]; - ++(*bp); - if(ct < codetree->numcodes) return ct; /*the symbol is decoded, return it*/ - else treepos = ct - codetree->numcodes; /*symbol not yet decoded, instead move tree position*/ - - if(treepos >= codetree->numcodes) return (unsigned)(-1); /*error: it appeared outside the codetree*/ - } -} -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_DECODER - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Inflator (Decompressor) / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -/*get the tree of a deflated block with fixed tree, as specified in the deflate specification*/ -static void getTreeInflateFixed(HuffmanTree* tree_ll, HuffmanTree* tree_d) { - /*TODO: check for out of memory errors*/ - generateFixedLitLenTree(tree_ll); - generateFixedDistanceTree(tree_d); -} - -/*get the tree of a deflated block with dynamic tree, the tree itself is also Huffman compressed with a known tree*/ -static unsigned getTreeInflateDynamic(HuffmanTree* tree_ll, HuffmanTree* tree_d, - const unsigned char* in, size_t* bp, size_t inlength) { - /*make sure that length values that aren't filled in will be 0, or a wrong tree will be generated*/ - unsigned error = 0; - unsigned n, HLIT, HDIST, HCLEN, i; - size_t inbitlength = inlength * 8; - - /*see comments in deflateDynamic for explanation of the context and these variables, it is analogous*/ - unsigned* bitlen_ll = 0; /*lit,len code lengths*/ - unsigned* bitlen_d = 0; /*dist code lengths*/ - /*code length code lengths ("clcl"), the bit lengths of the huffman tree used to compress bitlen_ll and bitlen_d*/ - unsigned* bitlen_cl = 0; - HuffmanTree tree_cl; /*the code tree for code length codes (the huffman tree for compressed huffman trees)*/ - - if((*bp) + 14 > (inlength << 3)) return 49; /*error: the bit pointer is or will go past the memory*/ - - /*number of literal/length codes + 257. Unlike the spec, the value 257 is added to it here already*/ - HLIT = readBitsFromStream(bp, in, 5) + 257; - /*number of distance codes. Unlike the spec, the value 1 is added to it here already*/ - HDIST = readBitsFromStream(bp, in, 5) + 1; - /*number of code length codes. Unlike the spec, the value 4 is added to it here already*/ - HCLEN = readBitsFromStream(bp, in, 4) + 4; - - if((*bp) + HCLEN * 3 > (inlength << 3)) return 50; /*error: the bit pointer is or will go past the memory*/ - - HuffmanTree_init(&tree_cl); - - while(!error) { - /*read the code length codes out of 3 * (amount of code length codes) bits*/ - - bitlen_cl = (unsigned*)lodepng_malloc(NUM_CODE_LENGTH_CODES * sizeof(unsigned)); - if(!bitlen_cl) ERROR_BREAK(83 /*alloc fail*/); - - for(i = 0; i != NUM_CODE_LENGTH_CODES; ++i) { - if(i < HCLEN) bitlen_cl[CLCL_ORDER[i]] = readBitsFromStream(bp, in, 3); - else bitlen_cl[CLCL_ORDER[i]] = 0; /*if not, it must stay 0*/ - } - - error = HuffmanTree_makeFromLengths(&tree_cl, bitlen_cl, NUM_CODE_LENGTH_CODES, 7); - if(error) break; - - /*now we can use this tree to read the lengths for the tree that this function will return*/ - bitlen_ll = (unsigned*)lodepng_malloc(NUM_DEFLATE_CODE_SYMBOLS * sizeof(unsigned)); - bitlen_d = (unsigned*)lodepng_malloc(NUM_DISTANCE_SYMBOLS * sizeof(unsigned)); - if(!bitlen_ll || !bitlen_d) ERROR_BREAK(83 /*alloc fail*/); - for(i = 0; i != NUM_DEFLATE_CODE_SYMBOLS; ++i) bitlen_ll[i] = 0; - for(i = 0; i != NUM_DISTANCE_SYMBOLS; ++i) bitlen_d[i] = 0; - - /*i is the current symbol we're reading in the part that contains the code lengths of lit/len and dist codes*/ - i = 0; - while(i < HLIT + HDIST) { - unsigned code = huffmanDecodeSymbol(in, bp, &tree_cl, inbitlength); - if(code <= 15) /*a length code*/ { - if(i < HLIT) bitlen_ll[i] = code; - else bitlen_d[i - HLIT] = code; - ++i; - } else if(code == 16) /*repeat previous*/ { - unsigned replength = 3; /*read in the 2 bits that indicate repeat length (3-6)*/ - unsigned value; /*set value to the previous code*/ - - if(i == 0) ERROR_BREAK(54); /*can't repeat previous if i is 0*/ - - if((*bp + 2) > inbitlength) ERROR_BREAK(50); /*error, bit pointer jumps past memory*/ - replength += readBitsFromStream(bp, in, 2); - - if(i < HLIT + 1) value = bitlen_ll[i - 1]; - else value = bitlen_d[i - HLIT - 1]; - /*repeat this value in the next lengths*/ - for(n = 0; n < replength; ++n) { - if(i >= HLIT + HDIST) ERROR_BREAK(13); /*error: i is larger than the amount of codes*/ - if(i < HLIT) bitlen_ll[i] = value; - else bitlen_d[i - HLIT] = value; - ++i; - } - } else if(code == 17) /*repeat "0" 3-10 times*/ { - unsigned replength = 3; /*read in the bits that indicate repeat length*/ - if((*bp + 3) > inbitlength) ERROR_BREAK(50); /*error, bit pointer jumps past memory*/ - replength += readBitsFromStream(bp, in, 3); - - /*repeat this value in the next lengths*/ - for(n = 0; n < replength; ++n) { - if(i >= HLIT + HDIST) ERROR_BREAK(14); /*error: i is larger than the amount of codes*/ - - if(i < HLIT) bitlen_ll[i] = 0; - else bitlen_d[i - HLIT] = 0; - ++i; - } - } else if(code == 18) /*repeat "0" 11-138 times*/ { - unsigned replength = 11; /*read in the bits that indicate repeat length*/ - if((*bp + 7) > inbitlength) ERROR_BREAK(50); /*error, bit pointer jumps past memory*/ - replength += readBitsFromStream(bp, in, 7); - - /*repeat this value in the next lengths*/ - for(n = 0; n < replength; ++n) { - if(i >= HLIT + HDIST) ERROR_BREAK(15); /*error: i is larger than the amount of codes*/ - - if(i < HLIT) bitlen_ll[i] = 0; - else bitlen_d[i - HLIT] = 0; - ++i; - } - } else /*if(code == (unsigned)(-1))*/ /*huffmanDecodeSymbol returns (unsigned)(-1) in case of error*/ { - if(code == (unsigned)(-1)) { - /*return error code 10 or 11 depending on the situation that happened in huffmanDecodeSymbol - (10=no endcode, 11=wrong jump outside of tree)*/ - error = (*bp) > inbitlength ? 10 : 11; - } - else error = 16; /*unexisting code, this can never happen*/ - break; - } - } - if(error) break; - - if(bitlen_ll[256] == 0) ERROR_BREAK(64); /*the length of the end code 256 must be larger than 0*/ - - /*now we've finally got HLIT and HDIST, so generate the code trees, and the function is done*/ - error = HuffmanTree_makeFromLengths(tree_ll, bitlen_ll, NUM_DEFLATE_CODE_SYMBOLS, 15); - if(error) break; - error = HuffmanTree_makeFromLengths(tree_d, bitlen_d, NUM_DISTANCE_SYMBOLS, 15); - - break; /*end of error-while*/ - } - - lodepng_free(bitlen_cl); - lodepng_free(bitlen_ll); - lodepng_free(bitlen_d); - HuffmanTree_cleanup(&tree_cl); - - return error; -} - -/*inflate a block with dynamic of fixed Huffman tree*/ -static unsigned inflateHuffmanBlock(ucvector* out, const unsigned char* in, size_t* bp, - size_t* pos, size_t inlength, unsigned btype) { - unsigned error = 0; - HuffmanTree tree_ll; /*the huffman tree for literal and length codes*/ - HuffmanTree tree_d; /*the huffman tree for distance codes*/ - size_t inbitlength = inlength * 8; - - HuffmanTree_init(&tree_ll); - HuffmanTree_init(&tree_d); - - if(btype == 1) getTreeInflateFixed(&tree_ll, &tree_d); - else if(btype == 2) error = getTreeInflateDynamic(&tree_ll, &tree_d, in, bp, inlength); - - while(!error) /*decode all symbols until end reached, breaks at end code*/ { - /*code_ll is literal, length or end code*/ - unsigned code_ll = huffmanDecodeSymbol(in, bp, &tree_ll, inbitlength); - if(code_ll <= 255) /*literal symbol*/ { - /*ucvector_push_back would do the same, but for some reason the two lines below run 10% faster*/ - if(!ucvector_resize(out, (*pos) + 1)) ERROR_BREAK(83 /*alloc fail*/); - out->data[*pos] = (unsigned char)code_ll; - ++(*pos); - } else if(code_ll >= FIRST_LENGTH_CODE_INDEX && code_ll <= LAST_LENGTH_CODE_INDEX) /*length code*/ { - unsigned code_d, distance; - unsigned numextrabits_l, numextrabits_d; /*extra bits for length and distance*/ - size_t start, forward, backward, length; - - /*part 1: get length base*/ - length = LENGTHBASE[code_ll - FIRST_LENGTH_CODE_INDEX]; - - /*part 2: get extra bits and add the value of that to length*/ - numextrabits_l = LENGTHEXTRA[code_ll - FIRST_LENGTH_CODE_INDEX]; - if((*bp + numextrabits_l) > inbitlength) ERROR_BREAK(51); /*error, bit pointer will jump past memory*/ - length += readBitsFromStream(bp, in, numextrabits_l); - - /*part 3: get distance code*/ - code_d = huffmanDecodeSymbol(in, bp, &tree_d, inbitlength); - if(code_d > 29) { - if(code_d == (unsigned)(-1)) /*huffmanDecodeSymbol returns (unsigned)(-1) in case of error*/ { - /*return error code 10 or 11 depending on the situation that happened in huffmanDecodeSymbol - (10=no endcode, 11=wrong jump outside of tree)*/ - error = (*bp) > inlength * 8 ? 10 : 11; - } - else error = 18; /*error: invalid distance code (30-31 are never used)*/ - break; - } - distance = DISTANCEBASE[code_d]; - - /*part 4: get extra bits from distance*/ - numextrabits_d = DISTANCEEXTRA[code_d]; - if((*bp + numextrabits_d) > inbitlength) ERROR_BREAK(51); /*error, bit pointer will jump past memory*/ - distance += readBitsFromStream(bp, in, numextrabits_d); - - /*part 5: fill in all the out[n] values based on the length and dist*/ - start = (*pos); - if(distance > start) ERROR_BREAK(52); /*too long backward distance*/ - backward = start - distance; - - if(!ucvector_resize(out, (*pos) + length)) ERROR_BREAK(83 /*alloc fail*/); - if (distance < length) { - for(forward = 0; forward < length; ++forward) { - out->data[(*pos)++] = out->data[backward++]; - } - } else { - memcpy(out->data + *pos, out->data + backward, length); - *pos += length; - } - } else if(code_ll == 256) { - break; /*end code, break the loop*/ - } else /*if(code == (unsigned)(-1))*/ /*huffmanDecodeSymbol returns (unsigned)(-1) in case of error*/ { - /*return error code 10 or 11 depending on the situation that happened in huffmanDecodeSymbol - (10=no endcode, 11=wrong jump outside of tree)*/ - error = ((*bp) > inlength * 8) ? 10 : 11; - break; - } - } - - HuffmanTree_cleanup(&tree_ll); - HuffmanTree_cleanup(&tree_d); - - return error; -} - -static unsigned inflateNoCompression(ucvector* out, const unsigned char* in, size_t* bp, size_t* pos, size_t inlength) { - size_t p; - unsigned LEN, NLEN, n, error = 0; - - /*go to first boundary of byte*/ - while(((*bp) & 0x7) != 0) ++(*bp); - p = (*bp) / 8; /*byte position*/ - - /*read LEN (2 bytes) and NLEN (2 bytes)*/ - if(p + 4 >= inlength) return 52; /*error, bit pointer will jump past memory*/ - LEN = in[p] + 256u * in[p + 1]; p += 2; - NLEN = in[p] + 256u * in[p + 1]; p += 2; - - /*check if 16-bit NLEN is really the one's complement of LEN*/ - if(LEN + NLEN != 65535) return 21; /*error: NLEN is not one's complement of LEN*/ - - if(!ucvector_resize(out, (*pos) + LEN)) return 83; /*alloc fail*/ - - /*read the literal data: LEN bytes are now stored in the out buffer*/ - if(p + LEN > inlength) return 23; /*error: reading outside of in buffer*/ - for(n = 0; n < LEN; ++n) out->data[(*pos)++] = in[p++]; - - (*bp) = p * 8; - - return error; -} - -static unsigned lodepng_inflatev(ucvector* out, - const unsigned char* in, size_t insize, - const LodePNGDecompressSettings* settings) { - /*bit pointer in the "in" data, current byte is bp >> 3, current bit is bp & 0x7 (from lsb to msb of the byte)*/ - size_t bp = 0; - unsigned BFINAL = 0; - size_t pos = 0; /*byte position in the out buffer*/ - unsigned error = 0; - - (void)settings; - - while(!BFINAL) { - unsigned BTYPE; - if(bp + 2 >= insize * 8) return 52; /*error, bit pointer will jump past memory*/ - BFINAL = readBitFromStream(&bp, in); - BTYPE = 1u * readBitFromStream(&bp, in); - BTYPE += 2u * readBitFromStream(&bp, in); - - if(BTYPE == 3) return 20; /*error: invalid BTYPE*/ - else if(BTYPE == 0) error = inflateNoCompression(out, in, &bp, &pos, insize); /*no compression*/ - else error = inflateHuffmanBlock(out, in, &bp, &pos, insize, BTYPE); /*compression, BTYPE 01 or 10*/ - - if(error) return error; - } - - return error; -} - -unsigned lodepng_inflate(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGDecompressSettings* settings) { - unsigned error; - ucvector v; - ucvector_init_buffer(&v, *out, *outsize); - error = lodepng_inflatev(&v, in, insize, settings); - *out = v.data; - *outsize = v.size; - return error; -} - -static unsigned inflate(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGDecompressSettings* settings) { - if(settings->custom_inflate) { - return settings->custom_inflate(out, outsize, in, insize, settings); - } else { - return lodepng_inflate(out, outsize, in, insize, settings); - } -} - -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_ENCODER - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Deflator (Compressor) / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -static const size_t MAX_SUPPORTED_DEFLATE_LENGTH = 258; - -/*bitlen is the size in bits of the code*/ -static void addHuffmanSymbol(size_t* bp, ucvector* compressed, unsigned code, unsigned bitlen) { - addBitsToStreamReversed(bp, compressed, code, bitlen); -} - -/*search the index in the array, that has the largest value smaller than or equal to the given value, -given array must be sorted (if no value is smaller, it returns the size of the given array)*/ -static size_t searchCodeIndex(const unsigned* array, size_t array_size, size_t value) { - /*binary search (only small gain over linear). TODO: use CPU log2 instruction for getting symbols instead*/ - size_t left = 1; - size_t right = array_size - 1; - - while(left <= right) { - size_t mid = (left + right) >> 1; - if (array[mid] >= value) right = mid - 1; - else left = mid + 1; - } - if(left >= array_size || array[left] > value) left--; - return left; -} - -static void addLengthDistance(uivector* values, size_t length, size_t distance) { - /*values in encoded vector are those used by deflate: - 0-255: literal bytes - 256: end - 257-285: length/distance pair (length code, followed by extra length bits, distance code, extra distance bits) - 286-287: invalid*/ - - unsigned length_code = (unsigned)searchCodeIndex(LENGTHBASE, 29, length); - unsigned extra_length = (unsigned)(length - LENGTHBASE[length_code]); - unsigned dist_code = (unsigned)searchCodeIndex(DISTANCEBASE, 30, distance); - unsigned extra_distance = (unsigned)(distance - DISTANCEBASE[dist_code]); - - uivector_push_back(values, length_code + FIRST_LENGTH_CODE_INDEX); - uivector_push_back(values, extra_length); - uivector_push_back(values, dist_code); - uivector_push_back(values, extra_distance); -} - -/*3 bytes of data get encoded into two bytes. The hash cannot use more than 3 -bytes as input because 3 is the minimum match length for deflate*/ -static const unsigned HASH_NUM_VALUES = 65536; -static const unsigned HASH_BIT_MASK = 65535; /*HASH_NUM_VALUES - 1, but C90 does not like that as initializer*/ - -typedef struct Hash { - int* head; /*hash value to head circular pos - can be outdated if went around window*/ - /*circular pos to prev circular pos*/ - unsigned short* chain; - int* val; /*circular pos to hash value*/ - - /*TODO: do this not only for zeros but for any repeated byte. However for PNG - it's always going to be the zeros that dominate, so not important for PNG*/ - int* headz; /*similar to head, but for chainz*/ - unsigned short* chainz; /*those with same amount of zeros*/ - unsigned short* zeros; /*length of zeros streak, used as a second hash chain*/ -} Hash; - -static unsigned hash_init(Hash* hash, unsigned windowsize) { - unsigned i; - hash->head = (int*)lodepng_malloc(sizeof(int) * HASH_NUM_VALUES); - hash->val = (int*)lodepng_malloc(sizeof(int) * windowsize); - hash->chain = (unsigned short*)lodepng_malloc(sizeof(unsigned short) * windowsize); - - hash->zeros = (unsigned short*)lodepng_malloc(sizeof(unsigned short) * windowsize); - hash->headz = (int*)lodepng_malloc(sizeof(int) * (MAX_SUPPORTED_DEFLATE_LENGTH + 1)); - hash->chainz = (unsigned short*)lodepng_malloc(sizeof(unsigned short) * windowsize); - - if(!hash->head || !hash->chain || !hash->val || !hash->headz|| !hash->chainz || !hash->zeros) { - return 83; /*alloc fail*/ - } - - /*initialize hash table*/ - for(i = 0; i != HASH_NUM_VALUES; ++i) hash->head[i] = -1; - for(i = 0; i != windowsize; ++i) hash->val[i] = -1; - for(i = 0; i != windowsize; ++i) hash->chain[i] = i; /*same value as index indicates uninitialized*/ - - for(i = 0; i <= MAX_SUPPORTED_DEFLATE_LENGTH; ++i) hash->headz[i] = -1; - for(i = 0; i != windowsize; ++i) hash->chainz[i] = i; /*same value as index indicates uninitialized*/ - - return 0; -} - -static void hash_cleanup(Hash* hash) { - lodepng_free(hash->head); - lodepng_free(hash->val); - lodepng_free(hash->chain); - - lodepng_free(hash->zeros); - lodepng_free(hash->headz); - lodepng_free(hash->chainz); -} - - - -static unsigned getHash(const unsigned char* data, size_t size, size_t pos) { - unsigned result = 0; - if(pos + 2 < size) { - /*A simple shift and xor hash is used. Since the data of PNGs is dominated - by zeroes due to the filters, a better hash does not have a significant - effect on speed in traversing the chain, and causes more time spend on - calculating the hash.*/ - result ^= (unsigned)(data[pos + 0] << 0u); - result ^= (unsigned)(data[pos + 1] << 4u); - result ^= (unsigned)(data[pos + 2] << 8u); - } else { - size_t amount, i; - if(pos >= size) return 0; - amount = size - pos; - for(i = 0; i != amount; ++i) result ^= (unsigned)(data[pos + i] << (i * 8u)); - } - return result & HASH_BIT_MASK; -} - -static unsigned countZeros(const unsigned char* data, size_t size, size_t pos) { - const unsigned char* start = data + pos; - const unsigned char* end = start + MAX_SUPPORTED_DEFLATE_LENGTH; - if(end > data + size) end = data + size; - data = start; - while(data != end && *data == 0) ++data; - /*subtracting two addresses returned as 32-bit number (max value is MAX_SUPPORTED_DEFLATE_LENGTH)*/ - return (unsigned)(data - start); -} - -/*wpos = pos & (windowsize - 1)*/ -static void updateHashChain(Hash* hash, size_t wpos, unsigned hashval, unsigned short numzeros) { - hash->val[wpos] = (int)hashval; - if(hash->head[hashval] != -1) hash->chain[wpos] = hash->head[hashval]; - hash->head[hashval] = (int)wpos; - - hash->zeros[wpos] = numzeros; - if(hash->headz[numzeros] != -1) hash->chainz[wpos] = hash->headz[numzeros]; - hash->headz[numzeros] = (int)wpos; -} - -/* -LZ77-encode the data. Return value is error code. The input are raw bytes, the output -is in the form of unsigned integers with codes representing for example literal bytes, or -length/distance pairs. -It uses a hash table technique to let it encode faster. When doing LZ77 encoding, a -sliding window (of windowsize) is used, and all past bytes in that window can be used as -the "dictionary". A brute force search through all possible distances would be slow, and -this hash technique is one out of several ways to speed this up. -*/ -static unsigned encodeLZ77(uivector* out, Hash* hash, - const unsigned char* in, size_t inpos, size_t insize, unsigned windowsize, - unsigned minmatch, unsigned nicematch, unsigned lazymatching) { - size_t pos; - unsigned i, error = 0; - /*for large window lengths, assume the user wants no compression loss. Otherwise, max hash chain length speedup.*/ - unsigned maxchainlength = windowsize >= 8192 ? windowsize : windowsize / 8; - unsigned maxlazymatch = windowsize >= 8192 ? MAX_SUPPORTED_DEFLATE_LENGTH : 64; - - unsigned usezeros = 1; /*not sure if setting it to false for windowsize < 8192 is better or worse*/ - unsigned numzeros = 0; - - unsigned offset; /*the offset represents the distance in LZ77 terminology*/ - unsigned length; - unsigned lazy = 0; - unsigned lazylength = 0, lazyoffset = 0; - unsigned hashval; - unsigned current_offset, current_length; - unsigned prev_offset; - const unsigned char *lastptr, *foreptr, *backptr; - unsigned hashpos; - - if(windowsize == 0 || windowsize > 32768) return 60; /*error: windowsize smaller/larger than allowed*/ - if((windowsize & (windowsize - 1)) != 0) return 90; /*error: must be power of two*/ - - if(nicematch > MAX_SUPPORTED_DEFLATE_LENGTH) nicematch = MAX_SUPPORTED_DEFLATE_LENGTH; - - for(pos = inpos; pos < insize; ++pos) { - size_t wpos = pos & (windowsize - 1); /*position for in 'circular' hash buffers*/ - unsigned chainlength = 0; - - hashval = getHash(in, insize, pos); - - if(usezeros && hashval == 0) { - if(numzeros == 0) numzeros = countZeros(in, insize, pos); - else if(pos + numzeros > insize || in[pos + numzeros - 1] != 0) --numzeros; - } else { - numzeros = 0; - } - - updateHashChain(hash, wpos, hashval, numzeros); - - /*the length and offset found for the current position*/ - length = 0; - offset = 0; - - hashpos = hash->chain[wpos]; - - lastptr = &in[insize < pos + MAX_SUPPORTED_DEFLATE_LENGTH ? insize : pos + MAX_SUPPORTED_DEFLATE_LENGTH]; - - /*search for the longest string*/ - prev_offset = 0; - for(;;) { - if(chainlength++ >= maxchainlength) break; - current_offset = (unsigned)(hashpos <= wpos ? wpos - hashpos : wpos - hashpos + windowsize); - - if(current_offset < prev_offset) break; /*stop when went completely around the circular buffer*/ - prev_offset = current_offset; - if(current_offset > 0) { - /*test the next characters*/ - foreptr = &in[pos]; - backptr = &in[pos - current_offset]; - - /*common case in PNGs is lots of zeros. Quickly skip over them as a speedup*/ - if(numzeros >= 3) { - unsigned skip = hash->zeros[hashpos]; - if(skip > numzeros) skip = numzeros; - backptr += skip; - foreptr += skip; - } - - while(foreptr != lastptr && *backptr == *foreptr) /*maximum supported length by deflate is max length*/ { - ++backptr; - ++foreptr; - } - current_length = (unsigned)(foreptr - &in[pos]); - - if(current_length > length) { - length = current_length; /*the longest length*/ - offset = current_offset; /*the offset that is related to this longest length*/ - /*jump out once a length of max length is found (speed gain). This also jumps - out if length is MAX_SUPPORTED_DEFLATE_LENGTH*/ - if(current_length >= nicematch) break; - } - } - - if(hashpos == hash->chain[hashpos]) break; - - if(numzeros >= 3 && length > numzeros) { - hashpos = hash->chainz[hashpos]; - if(hash->zeros[hashpos] != numzeros) break; - } else { - hashpos = hash->chain[hashpos]; - /*outdated hash value, happens if particular value was not encountered in whole last window*/ - if(hash->val[hashpos] != (int)hashval) break; - } - } - - if(lazymatching) { - if(!lazy && length >= 3 && length <= maxlazymatch && length < MAX_SUPPORTED_DEFLATE_LENGTH) { - lazy = 1; - lazylength = length; - lazyoffset = offset; - continue; /*try the next byte*/ - } - if(lazy) { - lazy = 0; - if(pos == 0) ERROR_BREAK(81); - if(length > lazylength + 1) { - /*push the previous character as literal*/ - if(!uivector_push_back(out, in[pos - 1])) ERROR_BREAK(83 /*alloc fail*/); - } else { - length = lazylength; - offset = lazyoffset; - hash->head[hashval] = -1; /*the same hashchain update will be done, this ensures no wrong alteration*/ - hash->headz[numzeros] = -1; /*idem*/ - --pos; - } - } - } - if(length >= 3 && offset > windowsize) ERROR_BREAK(86 /*too big (or overflown negative) offset*/); - - /*encode it as length/distance pair or literal value*/ - if(length < 3) /*only lengths of 3 or higher are supported as length/distance pair*/ { - if(!uivector_push_back(out, in[pos])) ERROR_BREAK(83 /*alloc fail*/); - } else if(length < minmatch || (length == 3 && offset > 4096)) { - /*compensate for the fact that longer offsets have more extra bits, a - length of only 3 may be not worth it then*/ - if(!uivector_push_back(out, in[pos])) ERROR_BREAK(83 /*alloc fail*/); - } else { - addLengthDistance(out, length, offset); - for(i = 1; i < length; ++i) { - ++pos; - wpos = pos & (windowsize - 1); - hashval = getHash(in, insize, pos); - if(usezeros && hashval == 0) { - if(numzeros == 0) numzeros = countZeros(in, insize, pos); - else if(pos + numzeros > insize || in[pos + numzeros - 1] != 0) --numzeros; - } else { - numzeros = 0; - } - updateHashChain(hash, wpos, hashval, numzeros); - } - } - } /*end of the loop through each character of input*/ - - return error; -} - -/* /////////////////////////////////////////////////////////////////////////// */ - -static unsigned deflateNoCompression(ucvector* out, const unsigned char* data, size_t datasize) { - /*non compressed deflate block data: 1 bit BFINAL,2 bits BTYPE,(5 bits): it jumps to start of next byte, - 2 bytes LEN, 2 bytes NLEN, LEN bytes literal DATA*/ - - size_t i, j, numdeflateblocks = (datasize + 65534) / 65535; - unsigned datapos = 0; - for(i = 0; i != numdeflateblocks; ++i) { - unsigned BFINAL, BTYPE, LEN, NLEN; - unsigned char firstbyte; - - BFINAL = (i == numdeflateblocks - 1); - BTYPE = 0; - - firstbyte = (unsigned char)(BFINAL + ((BTYPE & 1) << 1) + ((BTYPE & 2) << 1)); - ucvector_push_back(out, firstbyte); - - LEN = 65535; - if(datasize - datapos < 65535) LEN = (unsigned)datasize - datapos; - NLEN = 65535 - LEN; - - ucvector_push_back(out, (unsigned char)(LEN & 255)); - ucvector_push_back(out, (unsigned char)(LEN >> 8)); - ucvector_push_back(out, (unsigned char)(NLEN & 255)); - ucvector_push_back(out, (unsigned char)(NLEN >> 8)); - - /*Decompressed data*/ - for(j = 0; j < 65535 && datapos < datasize; ++j) { - ucvector_push_back(out, data[datapos++]); - } - } - - return 0; -} - -/* -write the lz77-encoded data, which has lit, len and dist codes, to compressed stream using huffman trees. -tree_ll: the tree for lit and len codes. -tree_d: the tree for distance codes. -*/ -static void writeLZ77data(size_t* bp, ucvector* out, const uivector* lz77_encoded, - const HuffmanTree* tree_ll, const HuffmanTree* tree_d) { - size_t i = 0; - for(i = 0; i != lz77_encoded->size; ++i) { - unsigned val = lz77_encoded->data[i]; - addHuffmanSymbol(bp, out, HuffmanTree_getCode(tree_ll, val), HuffmanTree_getLength(tree_ll, val)); - if(val > 256) /*for a length code, 3 more things have to be added*/ { - unsigned length_index = val - FIRST_LENGTH_CODE_INDEX; - unsigned n_length_extra_bits = LENGTHEXTRA[length_index]; - unsigned length_extra_bits = lz77_encoded->data[++i]; - - unsigned distance_code = lz77_encoded->data[++i]; - - unsigned distance_index = distance_code; - unsigned n_distance_extra_bits = DISTANCEEXTRA[distance_index]; - unsigned distance_extra_bits = lz77_encoded->data[++i]; - - addBitsToStream(bp, out, length_extra_bits, n_length_extra_bits); - addHuffmanSymbol(bp, out, HuffmanTree_getCode(tree_d, distance_code), - HuffmanTree_getLength(tree_d, distance_code)); - addBitsToStream(bp, out, distance_extra_bits, n_distance_extra_bits); - } - } -} - -/*Deflate for a block of type "dynamic", that is, with freely, optimally, created huffman trees*/ -static unsigned deflateDynamic(ucvector* out, size_t* bp, Hash* hash, - const unsigned char* data, size_t datapos, size_t dataend, - const LodePNGCompressSettings* settings, unsigned final) { - unsigned error = 0; - - /* - A block is compressed as follows: The PNG data is lz77 encoded, resulting in - literal bytes and length/distance pairs. This is then huffman compressed with - two huffman trees. One huffman tree is used for the lit and len values ("ll"), - another huffman tree is used for the dist values ("d"). These two trees are - stored using their code lengths, and to compress even more these code lengths - are also run-length encoded and huffman compressed. This gives a huffman tree - of code lengths "cl". The code lenghts used to describe this third tree are - the code length code lengths ("clcl"). - */ - - /*The lz77 encoded data, represented with integers since there will also be length and distance codes in it*/ - uivector lz77_encoded; - HuffmanTree tree_ll; /*tree for lit,len values*/ - HuffmanTree tree_d; /*tree for distance codes*/ - HuffmanTree tree_cl; /*tree for encoding the code lengths representing tree_ll and tree_d*/ - uivector frequencies_ll; /*frequency of lit,len codes*/ - uivector frequencies_d; /*frequency of dist codes*/ - uivector frequencies_cl; /*frequency of code length codes*/ - uivector bitlen_lld; /*lit,len,dist code lenghts (int bits), literally (without repeat codes).*/ - uivector bitlen_lld_e; /*bitlen_lld encoded with repeat codes (this is a rudemtary run length compression)*/ - /*bitlen_cl is the code length code lengths ("clcl"). The bit lengths of codes to represent tree_cl - (these are written as is in the file, it would be crazy to compress these using yet another huffman - tree that needs to be represented by yet another set of code lengths)*/ - uivector bitlen_cl; - size_t datasize = dataend - datapos; - - /* - Due to the huffman compression of huffman tree representations ("two levels"), there are some anologies: - bitlen_lld is to tree_cl what data is to tree_ll and tree_d. - bitlen_lld_e is to bitlen_lld what lz77_encoded is to data. - bitlen_cl is to bitlen_lld_e what bitlen_lld is to lz77_encoded. - */ - - unsigned BFINAL = final; - size_t numcodes_ll, numcodes_d, i; - unsigned HLIT, HDIST, HCLEN; - - uivector_init(&lz77_encoded); - HuffmanTree_init(&tree_ll); - HuffmanTree_init(&tree_d); - HuffmanTree_init(&tree_cl); - uivector_init(&frequencies_ll); - uivector_init(&frequencies_d); - uivector_init(&frequencies_cl); - uivector_init(&bitlen_lld); - uivector_init(&bitlen_lld_e); - uivector_init(&bitlen_cl); - - /*This while loop never loops due to a break at the end, it is here to - allow breaking out of it to the cleanup phase on error conditions.*/ - while(!error) { - if(settings->use_lz77) { - error = encodeLZ77(&lz77_encoded, hash, data, datapos, dataend, settings->windowsize, - settings->minmatch, settings->nicematch, settings->lazymatching); - if(error) break; - } else { - if(!uivector_resize(&lz77_encoded, datasize)) ERROR_BREAK(83 /*alloc fail*/); - for(i = datapos; i < dataend; ++i) lz77_encoded.data[i - datapos] = data[i]; /*no LZ77, but still will be Huffman compressed*/ - } - - if(!uivector_resizev(&frequencies_ll, 286, 0)) ERROR_BREAK(83 /*alloc fail*/); - if(!uivector_resizev(&frequencies_d, 30, 0)) ERROR_BREAK(83 /*alloc fail*/); - - /*Count the frequencies of lit, len and dist codes*/ - for(i = 0; i != lz77_encoded.size; ++i) { - unsigned symbol = lz77_encoded.data[i]; - ++frequencies_ll.data[symbol]; - if(symbol > 256) { - unsigned dist = lz77_encoded.data[i + 2]; - ++frequencies_d.data[dist]; - i += 3; - } - } - frequencies_ll.data[256] = 1; /*there will be exactly 1 end code, at the end of the block*/ - - /*Make both huffman trees, one for the lit and len codes, one for the dist codes*/ - error = HuffmanTree_makeFromFrequencies(&tree_ll, frequencies_ll.data, 257, frequencies_ll.size, 15); - if(error) break; - /*2, not 1, is chosen for mincodes: some buggy PNG decoders require at least 2 symbols in the dist tree*/ - error = HuffmanTree_makeFromFrequencies(&tree_d, frequencies_d.data, 2, frequencies_d.size, 15); - if(error) break; - - numcodes_ll = tree_ll.numcodes; if(numcodes_ll > 286) numcodes_ll = 286; - numcodes_d = tree_d.numcodes; if(numcodes_d > 30) numcodes_d = 30; - /*store the code lengths of both generated trees in bitlen_lld*/ - for(i = 0; i != numcodes_ll; ++i) uivector_push_back(&bitlen_lld, HuffmanTree_getLength(&tree_ll, (unsigned)i)); - for(i = 0; i != numcodes_d; ++i) uivector_push_back(&bitlen_lld, HuffmanTree_getLength(&tree_d, (unsigned)i)); - - /*run-length compress bitlen_ldd into bitlen_lld_e by using repeat codes 16 (copy length 3-6 times), - 17 (3-10 zeroes), 18 (11-138 zeroes)*/ - for(i = 0; i != (unsigned)bitlen_lld.size; ++i) { - unsigned j = 0; /*amount of repititions*/ - while(i + j + 1 < (unsigned)bitlen_lld.size && bitlen_lld.data[i + j + 1] == bitlen_lld.data[i]) ++j; - - if(bitlen_lld.data[i] == 0 && j >= 2) /*repeat code for zeroes*/ { - ++j; /*include the first zero*/ - if(j <= 10) /*repeat code 17 supports max 10 zeroes*/ { - uivector_push_back(&bitlen_lld_e, 17); - uivector_push_back(&bitlen_lld_e, j - 3); - } else /*repeat code 18 supports max 138 zeroes*/ { - if(j > 138) j = 138; - uivector_push_back(&bitlen_lld_e, 18); - uivector_push_back(&bitlen_lld_e, j - 11); - } - i += (j - 1); - } else if(j >= 3) /*repeat code for value other than zero*/ { - size_t k; - unsigned num = j / 6, rest = j % 6; - uivector_push_back(&bitlen_lld_e, bitlen_lld.data[i]); - for(k = 0; k < num; ++k) { - uivector_push_back(&bitlen_lld_e, 16); - uivector_push_back(&bitlen_lld_e, 6 - 3); - } - if(rest >= 3) { - uivector_push_back(&bitlen_lld_e, 16); - uivector_push_back(&bitlen_lld_e, rest - 3); - } - else j -= rest; - i += j; - } else /*too short to benefit from repeat code*/ { - uivector_push_back(&bitlen_lld_e, bitlen_lld.data[i]); - } - } - - /*generate tree_cl, the huffmantree of huffmantrees*/ - - if(!uivector_resizev(&frequencies_cl, NUM_CODE_LENGTH_CODES, 0)) ERROR_BREAK(83 /*alloc fail*/); - for(i = 0; i != bitlen_lld_e.size; ++i) { - ++frequencies_cl.data[bitlen_lld_e.data[i]]; - /*after a repeat code come the bits that specify the number of repetitions, - those don't need to be in the frequencies_cl calculation*/ - if(bitlen_lld_e.data[i] >= 16) ++i; - } - - error = HuffmanTree_makeFromFrequencies(&tree_cl, frequencies_cl.data, - frequencies_cl.size, frequencies_cl.size, 7); - if(error) break; - - if(!uivector_resize(&bitlen_cl, tree_cl.numcodes)) ERROR_BREAK(83 /*alloc fail*/); - for(i = 0; i != tree_cl.numcodes; ++i) { - /*lenghts of code length tree is in the order as specified by deflate*/ - bitlen_cl.data[i] = HuffmanTree_getLength(&tree_cl, CLCL_ORDER[i]); - } - while(bitlen_cl.data[bitlen_cl.size - 1] == 0 && bitlen_cl.size > 4) { - /*remove zeros at the end, but minimum size must be 4*/ - if(!uivector_resize(&bitlen_cl, bitlen_cl.size - 1)) ERROR_BREAK(83 /*alloc fail*/); - } - if(error) break; - - /* - Write everything into the output - - After the BFINAL and BTYPE, the dynamic block consists out of the following: - - 5 bits HLIT, 5 bits HDIST, 4 bits HCLEN - - (HCLEN+4)*3 bits code lengths of code length alphabet - - HLIT + 257 code lenghts of lit/length alphabet (encoded using the code length - alphabet, + possible repetition codes 16, 17, 18) - - HDIST + 1 code lengths of distance alphabet (encoded using the code length - alphabet, + possible repetition codes 16, 17, 18) - - compressed data - - 256 (end code) - */ - - /*Write block type*/ - addBitToStream(bp, out, BFINAL); - addBitToStream(bp, out, 0); /*first bit of BTYPE "dynamic"*/ - addBitToStream(bp, out, 1); /*second bit of BTYPE "dynamic"*/ - - /*write the HLIT, HDIST and HCLEN values*/ - HLIT = (unsigned)(numcodes_ll - 257); - HDIST = (unsigned)(numcodes_d - 1); - HCLEN = (unsigned)bitlen_cl.size - 4; - /*trim zeroes for HCLEN. HLIT and HDIST were already trimmed at tree creation*/ - while(!bitlen_cl.data[HCLEN + 4 - 1] && HCLEN > 0) --HCLEN; - addBitsToStream(bp, out, HLIT, 5); - addBitsToStream(bp, out, HDIST, 5); - addBitsToStream(bp, out, HCLEN, 4); - - /*write the code lenghts of the code length alphabet*/ - for(i = 0; i != HCLEN + 4; ++i) addBitsToStream(bp, out, bitlen_cl.data[i], 3); - - /*write the lenghts of the lit/len AND the dist alphabet*/ - for(i = 0; i != bitlen_lld_e.size; ++i) { - addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_cl, bitlen_lld_e.data[i]), - HuffmanTree_getLength(&tree_cl, bitlen_lld_e.data[i])); - /*extra bits of repeat codes*/ - if(bitlen_lld_e.data[i] == 16) addBitsToStream(bp, out, bitlen_lld_e.data[++i], 2); - else if(bitlen_lld_e.data[i] == 17) addBitsToStream(bp, out, bitlen_lld_e.data[++i], 3); - else if(bitlen_lld_e.data[i] == 18) addBitsToStream(bp, out, bitlen_lld_e.data[++i], 7); - } - - /*write the compressed data symbols*/ - writeLZ77data(bp, out, &lz77_encoded, &tree_ll, &tree_d); - /*error: the length of the end code 256 must be larger than 0*/ - if(HuffmanTree_getLength(&tree_ll, 256) == 0) ERROR_BREAK(64); - - /*write the end code*/ - addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_ll, 256), HuffmanTree_getLength(&tree_ll, 256)); - - break; /*end of error-while*/ - } - - /*cleanup*/ - uivector_cleanup(&lz77_encoded); - HuffmanTree_cleanup(&tree_ll); - HuffmanTree_cleanup(&tree_d); - HuffmanTree_cleanup(&tree_cl); - uivector_cleanup(&frequencies_ll); - uivector_cleanup(&frequencies_d); - uivector_cleanup(&frequencies_cl); - uivector_cleanup(&bitlen_lld_e); - uivector_cleanup(&bitlen_lld); - uivector_cleanup(&bitlen_cl); - - return error; -} - -static unsigned deflateFixed(ucvector* out, size_t* bp, Hash* hash, - const unsigned char* data, - size_t datapos, size_t dataend, - const LodePNGCompressSettings* settings, unsigned final) { - HuffmanTree tree_ll; /*tree for literal values and length codes*/ - HuffmanTree tree_d; /*tree for distance codes*/ - - unsigned BFINAL = final; - unsigned error = 0; - size_t i; - - HuffmanTree_init(&tree_ll); - HuffmanTree_init(&tree_d); - - generateFixedLitLenTree(&tree_ll); - generateFixedDistanceTree(&tree_d); - - addBitToStream(bp, out, BFINAL); - addBitToStream(bp, out, 1); /*first bit of BTYPE*/ - addBitToStream(bp, out, 0); /*second bit of BTYPE*/ - - if(settings->use_lz77) /*LZ77 encoded*/ { - uivector lz77_encoded; - uivector_init(&lz77_encoded); - error = encodeLZ77(&lz77_encoded, hash, data, datapos, dataend, settings->windowsize, - settings->minmatch, settings->nicematch, settings->lazymatching); - if(!error) writeLZ77data(bp, out, &lz77_encoded, &tree_ll, &tree_d); - uivector_cleanup(&lz77_encoded); - } else /*no LZ77, but still will be Huffman compressed*/ { - for(i = datapos; i < dataend; ++i) { - addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_ll, data[i]), HuffmanTree_getLength(&tree_ll, data[i])); - } - } - /*add END code*/ - if(!error) addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_ll, 256), HuffmanTree_getLength(&tree_ll, 256)); - - /*cleanup*/ - HuffmanTree_cleanup(&tree_ll); - HuffmanTree_cleanup(&tree_d); - - return error; -} - -static unsigned lodepng_deflatev(ucvector* out, const unsigned char* in, size_t insize, - const LodePNGCompressSettings* settings) { - unsigned error = 0; - size_t i, blocksize, numdeflateblocks; - size_t bp = 0; /*the bit pointer*/ - Hash hash; - - if(settings->btype > 2) return 61; - else if(settings->btype == 0) return deflateNoCompression(out, in, insize); - else if(settings->btype == 1) blocksize = insize; - else /*if(settings->btype == 2)*/ { - /*on PNGs, deflate blocks of 65-262k seem to give most dense encoding*/ - blocksize = insize / 8 + 8; - if(blocksize < 65536) blocksize = 65536; - if(blocksize > 262144) blocksize = 262144; - } - - numdeflateblocks = (insize + blocksize - 1) / blocksize; - if(numdeflateblocks == 0) numdeflateblocks = 1; - - error = hash_init(&hash, settings->windowsize); - if(error) return error; - - for(i = 0; i != numdeflateblocks && !error; ++i) { - unsigned final = (i == numdeflateblocks - 1); - size_t start = i * blocksize; - size_t end = start + blocksize; - if(end > insize) end = insize; - - if(settings->btype == 1) error = deflateFixed(out, &bp, &hash, in, start, end, settings, final); - else if(settings->btype == 2) error = deflateDynamic(out, &bp, &hash, in, start, end, settings, final); - } - - hash_cleanup(&hash); - - return error; -} - -unsigned lodepng_deflate(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGCompressSettings* settings) { - unsigned error; - ucvector v; - ucvector_init_buffer(&v, *out, *outsize); - error = lodepng_deflatev(&v, in, insize, settings); - *out = v.data; - *outsize = v.size; - return error; -} - -static unsigned deflate(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGCompressSettings* settings) { - if(settings->custom_deflate) { - return settings->custom_deflate(out, outsize, in, insize, settings); - } else { - return lodepng_deflate(out, outsize, in, insize, settings); - } -} - -#endif /*LODEPNG_COMPILE_DECODER*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Adler32 */ -/* ////////////////////////////////////////////////////////////////////////// */ - -static unsigned update_adler32(unsigned adler, const unsigned char* data, unsigned len) { - unsigned s1 = adler & 0xffff; - unsigned s2 = (adler >> 16) & 0xffff; - - while(len > 0) { - /*at least 5552 sums can be done before the sums overflow, saving a lot of module divisions*/ - unsigned amount = len > 5552 ? 5552 : len; - len -= amount; - while(amount > 0) { - s1 += (*data++); - s2 += s1; - --amount; - } - s1 %= 65521; - s2 %= 65521; - } - - return (s2 << 16) | s1; -} - -/*Return the adler32 of the bytes data[0..len-1]*/ -static unsigned adler32(const unsigned char* data, unsigned len) { - return update_adler32(1L, data, len); -} - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Zlib / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_DECODER - -unsigned lodepng_zlib_decompress(unsigned char** out, size_t* outsize, const unsigned char* in, - size_t insize, const LodePNGDecompressSettings* settings) { - unsigned error = 0; - unsigned CM, CINFO, FDICT; - - if(insize < 2) return 53; /*error, size of zlib data too small*/ - /*read information from zlib header*/ - if((in[0] * 256 + in[1]) % 31 != 0) { - /*error: 256 * in[0] + in[1] must be a multiple of 31, the FCHECK value is supposed to be made that way*/ - return 24; - } - - CM = in[0] & 15; - CINFO = (in[0] >> 4) & 15; - /*FCHECK = in[1] & 31;*/ /*FCHECK is already tested above*/ - FDICT = (in[1] >> 5) & 1; - /*FLEVEL = (in[1] >> 6) & 3;*/ /*FLEVEL is not used here*/ - - if(CM != 8 || CINFO > 7) { - /*error: only compression method 8: inflate with sliding window of 32k is supported by the PNG spec*/ - return 25; - } - if(FDICT != 0) { - /*error: the specification of PNG says about the zlib stream: - "The additional flags shall not specify a preset dictionary."*/ - return 26; - } - - error = inflate(out, outsize, in + 2, insize - 2, settings); - if(error) return error; - - if(!settings->ignore_adler32) { - unsigned ADLER32 = lodepng_read32bitInt(&in[insize - 4]); - unsigned checksum = adler32(*out, (unsigned)(*outsize)); - if(checksum != ADLER32) return 58; /*error, adler checksum not correct, data must be corrupted*/ - } - - return 0; /*no error*/ -} - -static unsigned zlib_decompress(unsigned char** out, size_t* outsize, const unsigned char* in, - size_t insize, const LodePNGDecompressSettings* settings) { - if(settings->custom_zlib) { - return settings->custom_zlib(out, outsize, in, insize, settings); - } else { - return lodepng_zlib_decompress(out, outsize, in, insize, settings); - } -} - -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_ENCODER - -unsigned lodepng_zlib_compress(unsigned char** out, size_t* outsize, const unsigned char* in, - size_t insize, const LodePNGCompressSettings* settings) { - /*initially, *out must be NULL and outsize 0, if you just give some random *out - that's pointing to a non allocated buffer, this'll crash*/ - ucvector outv; - size_t i; - unsigned error; - unsigned char* deflatedata = 0; - size_t deflatesize = 0; - - /*zlib data: 1 byte CMF (CM+CINFO), 1 byte FLG, deflate data, 4 byte ADLER32 checksum of the Decompressed data*/ - unsigned CMF = 120; /*0b01111000: CM 8, CINFO 7. With CINFO 7, any window size up to 32768 can be used.*/ - unsigned FLEVEL = 0; - unsigned FDICT = 0; - unsigned CMFFLG = 256 * CMF + FDICT * 32 + FLEVEL * 64; - unsigned FCHECK = 31 - CMFFLG % 31; - CMFFLG += FCHECK; - - /*ucvector-controlled version of the output buffer, for dynamic array*/ - ucvector_init_buffer(&outv, *out, *outsize); - - ucvector_push_back(&outv, (unsigned char)(CMFFLG >> 8)); - ucvector_push_back(&outv, (unsigned char)(CMFFLG & 255)); - - error = deflate(&deflatedata, &deflatesize, in, insize, settings); - - if(!error) { - unsigned ADLER32 = adler32(in, (unsigned)insize); - for(i = 0; i != deflatesize; ++i) ucvector_push_back(&outv, deflatedata[i]); - lodepng_free(deflatedata); - lodepng_add32bitInt(&outv, ADLER32); - } - - *out = outv.data; - *outsize = outv.size; - - return error; -} - -/* compress using the default or custom zlib function */ -static unsigned zlib_compress(unsigned char** out, size_t* outsize, const unsigned char* in, - size_t insize, const LodePNGCompressSettings* settings) { - if(settings->custom_zlib) { - return settings->custom_zlib(out, outsize, in, insize, settings); - } else { - return lodepng_zlib_compress(out, outsize, in, insize, settings); - } -} - -#endif /*LODEPNG_COMPILE_ENCODER*/ - -#else /*no LODEPNG_COMPILE_ZLIB*/ - -#ifdef LODEPNG_COMPILE_DECODER -static unsigned zlib_decompress(unsigned char** out, size_t* outsize, const unsigned char* in, - size_t insize, const LodePNGDecompressSettings* settings) { - if(!settings->custom_zlib) return 87; /*no custom zlib function provided */ - return settings->custom_zlib(out, outsize, in, insize, settings); -} -#endif /*LODEPNG_COMPILE_DECODER*/ -#ifdef LODEPNG_COMPILE_ENCODER -static unsigned zlib_compress(unsigned char** out, size_t* outsize, const unsigned char* in, - size_t insize, const LodePNGCompressSettings* settings) { - if(!settings->custom_zlib) return 87; /*no custom zlib function provided */ - return settings->custom_zlib(out, outsize, in, insize, settings); -} -#endif /*LODEPNG_COMPILE_ENCODER*/ - -#endif /*LODEPNG_COMPILE_ZLIB*/ - -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_ENCODER - -/*this is a good tradeoff between speed and compression ratio*/ -#define DEFAULT_WINDOWSIZE 2048 - -void lodepng_compress_settings_init(LodePNGCompressSettings* settings) { - /*compress with dynamic huffman tree (not in the mathematical sense, just not the predefined one)*/ - settings->btype = 2; - settings->use_lz77 = 1; - settings->windowsize = DEFAULT_WINDOWSIZE; - settings->minmatch = 3; - settings->nicematch = 128; - settings->lazymatching = 1; - - settings->custom_zlib = 0; - settings->custom_deflate = 0; - settings->custom_context = 0; -} - -const LodePNGCompressSettings lodepng_default_compress_settings = {2, 1, DEFAULT_WINDOWSIZE, 3, 128, 1, 0, 0, 0}; - - -#endif /*LODEPNG_COMPILE_ENCODER*/ - -#ifdef LODEPNG_COMPILE_DECODER - -void lodepng_decompress_settings_init(LodePNGDecompressSettings* settings) { - settings->ignore_adler32 = 0; - - settings->custom_zlib = 0; - settings->custom_inflate = 0; - settings->custom_context = 0; -} - -const LodePNGDecompressSettings lodepng_default_decompress_settings = {0, 0, 0, 0}; - -#endif /*LODEPNG_COMPILE_DECODER*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* // End of Zlib related code. Begin of PNG related code. // */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_PNG - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / CRC32 / */ -/* ////////////////////////////////////////////////////////////////////////// */ - - -#ifndef LODEPNG_NO_COMPILE_CRC -/* CRC polynomial: 0xedb88320 */ -static unsigned lodepng_crc32_table[256] = { - 0u, 1996959894u, 3993919788u, 2567524794u, 124634137u, 1886057615u, 3915621685u, 2657392035u, - 249268274u, 2044508324u, 3772115230u, 2547177864u, 162941995u, 2125561021u, 3887607047u, 2428444049u, - 498536548u, 1789927666u, 4089016648u, 2227061214u, 450548861u, 1843258603u, 4107580753u, 2211677639u, - 325883990u, 1684777152u, 4251122042u, 2321926636u, 335633487u, 1661365465u, 4195302755u, 2366115317u, - 997073096u, 1281953886u, 3579855332u, 2724688242u, 1006888145u, 1258607687u, 3524101629u, 2768942443u, - 901097722u, 1119000684u, 3686517206u, 2898065728u, 853044451u, 1172266101u, 3705015759u, 2882616665u, - 651767980u, 1373503546u, 3369554304u, 3218104598u, 565507253u, 1454621731u, 3485111705u, 3099436303u, - 671266974u, 1594198024u, 3322730930u, 2970347812u, 795835527u, 1483230225u, 3244367275u, 3060149565u, - 1994146192u, 31158534u, 2563907772u, 4023717930u, 1907459465u, 112637215u, 2680153253u, 3904427059u, - 2013776290u, 251722036u, 2517215374u, 3775830040u, 2137656763u, 141376813u, 2439277719u, 3865271297u, - 1802195444u, 476864866u, 2238001368u, 4066508878u, 1812370925u, 453092731u, 2181625025u, 4111451223u, - 1706088902u, 314042704u, 2344532202u, 4240017532u, 1658658271u, 366619977u, 2362670323u, 4224994405u, - 1303535960u, 984961486u, 2747007092u, 3569037538u, 1256170817u, 1037604311u, 2765210733u, 3554079995u, - 1131014506u, 879679996u, 2909243462u, 3663771856u, 1141124467u, 855842277u, 2852801631u, 3708648649u, - 1342533948u, 654459306u, 3188396048u, 3373015174u, 1466479909u, 544179635u, 3110523913u, 3462522015u, - 1591671054u, 702138776u, 2966460450u, 3352799412u, 1504918807u, 783551873u, 3082640443u, 3233442989u, - 3988292384u, 2596254646u, 62317068u, 1957810842u, 3939845945u, 2647816111u, 81470997u, 1943803523u, - 3814918930u, 2489596804u, 225274430u, 2053790376u, 3826175755u, 2466906013u, 167816743u, 2097651377u, - 4027552580u, 2265490386u, 503444072u, 1762050814u, 4150417245u, 2154129355u, 426522225u, 1852507879u, - 4275313526u, 2312317920u, 282753626u, 1742555852u, 4189708143u, 2394877945u, 397917763u, 1622183637u, - 3604390888u, 2714866558u, 953729732u, 1340076626u, 3518719985u, 2797360999u, 1068828381u, 1219638859u, - 3624741850u, 2936675148u, 906185462u, 1090812512u, 3747672003u, 2825379669u, 829329135u, 1181335161u, - 3412177804u, 3160834842u, 628085408u, 1382605366u, 3423369109u, 3138078467u, 570562233u, 1426400815u, - 3317316542u, 2998733608u, 733239954u, 1555261956u, 3268935591u, 3050360625u, 752459403u, 1541320221u, - 2607071920u, 3965973030u, 1969922972u, 40735498u, 2617837225u, 3943577151u, 1913087877u, 83908371u, - 2512341634u, 3803740692u, 2075208622u, 213261112u, 2463272603u, 3855990285u, 2094854071u, 198958881u, - 2262029012u, 4057260610u, 1759359992u, 534414190u, 2176718541u, 4139329115u, 1873836001u, 414664567u, - 2282248934u, 4279200368u, 1711684554u, 285281116u, 2405801727u, 4167216745u, 1634467795u, 376229701u, - 2685067896u, 3608007406u, 1308918612u, 956543938u, 2808555105u, 3495958263u, 1231636301u, 1047427035u, - 2932959818u, 3654703836u, 1088359270u, 936918000u, 2847714899u, 3736837829u, 1202900863u, 817233897u, - 3183342108u, 3401237130u, 1404277552u, 615818150u, 3134207493u, 3453421203u, 1423857449u, 601450431u, - 3009837614u, 3294710456u, 1567103746u, 711928724u, 3020668471u, 3272380065u, 1510334235u, 755167117u -}; - -/*Return the CRC of the bytes buf[0..len-1].*/ -unsigned lodepng_crc32(const unsigned char* data, size_t length) { - unsigned r = 0xffffffffu; - size_t i; - for(i = 0; i < length; ++i) { - r = lodepng_crc32_table[(r ^ data[i]) & 0xff] ^ (r >> 8); - } - return r ^ 0xffffffffu; -} -#else /* !LODEPNG_NO_COMPILE_CRC */ -unsigned lodepng_crc32(const unsigned char* data, size_t length); -#endif /* !LODEPNG_NO_COMPILE_CRC */ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Reading and writing single bits and bytes from/to stream for LodePNG / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -static unsigned char readBitFromReversedStream(size_t* bitpointer, const unsigned char* bitstream) { - unsigned char result = (unsigned char)((bitstream[(*bitpointer) >> 3] >> (7 - ((*bitpointer) & 0x7))) & 1); - ++(*bitpointer); - return result; -} - -static unsigned readBitsFromReversedStream(size_t* bitpointer, const unsigned char* bitstream, size_t nbits) { - unsigned result = 0; - size_t i; - for(i = 0 ; i < nbits; ++i) { - result <<= 1; - result |= (unsigned)readBitFromReversedStream(bitpointer, bitstream); - } - return result; -} - -#ifdef LODEPNG_COMPILE_DECODER -static void setBitOfReversedStream0(size_t* bitpointer, unsigned char* bitstream, unsigned char bit) { - /*the current bit in bitstream must be 0 for this to work*/ - if(bit) { - /*earlier bit of huffman code is in a lesser significant bit of an earlier byte*/ - bitstream[(*bitpointer) >> 3] |= (bit << (7 - ((*bitpointer) & 0x7))); - } - ++(*bitpointer); -} -#endif /*LODEPNG_COMPILE_DECODER*/ - -static void setBitOfReversedStream(size_t* bitpointer, unsigned char* bitstream, unsigned char bit) { - /*the current bit in bitstream may be 0 or 1 for this to work*/ - if(bit == 0) bitstream[(*bitpointer) >> 3] &= (unsigned char)(~(1 << (7 - ((*bitpointer) & 0x7)))); - else bitstream[(*bitpointer) >> 3] |= (1 << (7 - ((*bitpointer) & 0x7))); - ++(*bitpointer); -} - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / PNG chunks / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -unsigned lodepng_chunk_length(const unsigned char* chunk) { - return lodepng_read32bitInt(&chunk[0]); -} - -void lodepng_chunk_type(char type[5], const unsigned char* chunk) { - unsigned i; - for(i = 0; i != 4; ++i) type[i] = (char)chunk[4 + i]; - type[4] = 0; /*null termination char*/ -} - -unsigned char lodepng_chunk_type_equals(const unsigned char* chunk, const char* type) { - if(strlen(type) != 4) return 0; - return (chunk[4] == type[0] && chunk[5] == type[1] && chunk[6] == type[2] && chunk[7] == type[3]); -} - -unsigned char lodepng_chunk_ancillary(const unsigned char* chunk) { - return((chunk[4] & 32) != 0); -} - -unsigned char lodepng_chunk_private(const unsigned char* chunk) { - return((chunk[6] & 32) != 0); -} - -unsigned char lodepng_chunk_safetocopy(const unsigned char* chunk) { - return((chunk[7] & 32) != 0); -} - -unsigned char* lodepng_chunk_data(unsigned char* chunk) { - return &chunk[8]; -} - -const unsigned char* lodepng_chunk_data_const(const unsigned char* chunk) { - return &chunk[8]; -} - -unsigned lodepng_chunk_check_crc(const unsigned char* chunk) { - unsigned length = lodepng_chunk_length(chunk); - unsigned CRC = lodepng_read32bitInt(&chunk[length + 8]); - /*the CRC is taken of the data and the 4 chunk type letters, not the length*/ - unsigned checksum = lodepng_crc32(&chunk[4], length + 4); - if(CRC != checksum) return 1; - else return 0; -} - -void lodepng_chunk_generate_crc(unsigned char* chunk) { - unsigned length = lodepng_chunk_length(chunk); - unsigned CRC = lodepng_crc32(&chunk[4], length + 4); - lodepng_set32bitInt(chunk + 8 + length, CRC); -} - -unsigned char* lodepng_chunk_next(unsigned char* chunk) { - if(chunk[0] == 0x89 && chunk[1] == 0x50 && chunk[2] == 0x4e && chunk[3] == 0x47 - && chunk[4] == 0x0d && chunk[5] == 0x0a && chunk[6] == 0x1a && chunk[7] == 0x0a) { - /* Is PNG magic header at start of PNG file. Jump to first actual chunk. */ - return chunk + 8; - } else { - unsigned total_chunk_length = lodepng_chunk_length(chunk) + 12; - return chunk + total_chunk_length; - } -} - -const unsigned char* lodepng_chunk_next_const(const unsigned char* chunk) { - if(chunk[0] == 0x89 && chunk[1] == 0x50 && chunk[2] == 0x4e && chunk[3] == 0x47 - && chunk[4] == 0x0d && chunk[5] == 0x0a && chunk[6] == 0x1a && chunk[7] == 0x0a) { - /* Is PNG magic header at start of PNG file. Jump to first actual chunk. */ - return chunk + 8; - } else { - unsigned total_chunk_length = lodepng_chunk_length(chunk) + 12; - return chunk + total_chunk_length; - } -} - -unsigned char* lodepng_chunk_find(unsigned char* chunk, const unsigned char* end, const char type[5]) { - for(;;) { - if(chunk + 12 >= end) return 0; - if(lodepng_chunk_type_equals(chunk, type)) return chunk; - chunk = lodepng_chunk_next(chunk); - } -} - -const unsigned char* lodepng_chunk_find_const(const unsigned char* chunk, const unsigned char* end, const char type[5]) { - for(;;) { - if(chunk + 12 >= end) return 0; - if(lodepng_chunk_type_equals(chunk, type)) return chunk; - chunk = lodepng_chunk_next_const(chunk); - } -} - -unsigned lodepng_chunk_append(unsigned char** out, size_t* outlength, const unsigned char* chunk) { - unsigned i; - unsigned total_chunk_length = lodepng_chunk_length(chunk) + 12; - unsigned char *chunk_start, *new_buffer; - size_t new_length = (*outlength) + total_chunk_length; - if(new_length < total_chunk_length || new_length < (*outlength)) return 77; /*integer overflow happened*/ - - new_buffer = (unsigned char*)lodepng_realloc(*out, new_length); - if(!new_buffer) return 83; /*alloc fail*/ - (*out) = new_buffer; - (*outlength) = new_length; - chunk_start = &(*out)[new_length - total_chunk_length]; - - for(i = 0; i != total_chunk_length; ++i) chunk_start[i] = chunk[i]; - - return 0; -} - -unsigned lodepng_chunk_create(unsigned char** out, size_t* outlength, unsigned length, - const char* type, const unsigned char* data) { - unsigned i; - unsigned char *chunk, *new_buffer; - size_t new_length = (*outlength) + length + 12; - if(new_length < length + 12 || new_length < (*outlength)) return 77; /*integer overflow happened*/ - new_buffer = (unsigned char*)lodepng_realloc(*out, new_length); - if(!new_buffer) return 83; /*alloc fail*/ - (*out) = new_buffer; - (*outlength) = new_length; - chunk = &(*out)[(*outlength) - length - 12]; - - /*1: length*/ - lodepng_set32bitInt(chunk, (unsigned)length); - - /*2: chunk name (4 letters)*/ - chunk[4] = (unsigned char)type[0]; - chunk[5] = (unsigned char)type[1]; - chunk[6] = (unsigned char)type[2]; - chunk[7] = (unsigned char)type[3]; - - /*3: the data*/ - for(i = 0; i != length; ++i) chunk[8 + i] = data[i]; - - /*4: CRC (of the chunkname characters and the data)*/ - lodepng_chunk_generate_crc(chunk); - - return 0; -} - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Color types and such / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -/*return type is a LodePNG error code*/ -static unsigned checkColorValidity(LodePNGColorType colortype, unsigned bd) /*bd = bitdepth*/ { - switch(colortype) { - case 0: if(!(bd == 1 || bd == 2 || bd == 4 || bd == 8 || bd == 16)) return 37; break; /*gray*/ - case 2: if(!( bd == 8 || bd == 16)) return 37; break; /*RGB*/ - case 3: if(!(bd == 1 || bd == 2 || bd == 4 || bd == 8 )) return 37; break; /*palette*/ - case 4: if(!( bd == 8 || bd == 16)) return 37; break; /*gray + alpha*/ - case 6: if(!( bd == 8 || bd == 16)) return 37; break; /*RGBA*/ - default: return 31; - } - return 0; /*allowed color type / bits combination*/ -} - -static unsigned getNumColorChannels(LodePNGColorType colortype) { - switch(colortype) { - case 0: return 1; /*gray*/ - case 2: return 3; /*RGB*/ - case 3: return 1; /*palette*/ - case 4: return 2; /*gray + alpha*/ - case 6: return 4; /*RGBA*/ - } - return 0; /*unexisting color type*/ -} - -static unsigned lodepng_get_bpp_lct(LodePNGColorType colortype, unsigned bitdepth) { - /*bits per pixel is amount of channels * bits per channel*/ - return getNumColorChannels(colortype) * bitdepth; -} - -/* ////////////////////////////////////////////////////////////////////////// */ - -void lodepng_color_mode_init(LodePNGColorMode* info) { - info->key_defined = 0; - info->key_r = info->key_g = info->key_b = 0; - info->colortype = LCT_RGBA; - info->bitdepth = 8; - info->palette = 0; - info->palettesize = 0; -} - -void lodepng_color_mode_cleanup(LodePNGColorMode* info) { - lodepng_palette_clear(info); -} - -unsigned lodepng_color_mode_copy(LodePNGColorMode* dest, const LodePNGColorMode* source) { - size_t i; - lodepng_color_mode_cleanup(dest); - *dest = *source; - if(source->palette) { - dest->palette = (unsigned char*)lodepng_malloc(1024); - if(!dest->palette && source->palettesize) return 83; /*alloc fail*/ - for(i = 0; i != source->palettesize * 4; ++i) dest->palette[i] = source->palette[i]; - } - return 0; -} - -LodePNGColorMode lodepng_color_mode_make(LodePNGColorType colortype, unsigned bitdepth) { - LodePNGColorMode result; - lodepng_color_mode_init(&result); - result.colortype = colortype; - result.bitdepth = bitdepth; - return result; -} - -static int lodepng_color_mode_equal(const LodePNGColorMode* a, const LodePNGColorMode* b) { - size_t i; - if(a->colortype != b->colortype) return 0; - if(a->bitdepth != b->bitdepth) return 0; - if(a->key_defined != b->key_defined) return 0; - if(a->key_defined) { - if(a->key_r != b->key_r) return 0; - if(a->key_g != b->key_g) return 0; - if(a->key_b != b->key_b) return 0; - } - if(a->palettesize != b->palettesize) return 0; - for(i = 0; i != a->palettesize * 4; ++i) { - if(a->palette[i] != b->palette[i]) return 0; - } - return 1; -} - -void lodepng_palette_clear(LodePNGColorMode* info) { - if(info->palette) lodepng_free(info->palette); - info->palette = 0; - info->palettesize = 0; -} - -unsigned lodepng_palette_add(LodePNGColorMode* info, - unsigned char r, unsigned char g, unsigned char b, unsigned char a) { - unsigned char* data; - /*the same resize technique as C++ std::vectors is used, and here it's made so that for a palette with - the max of 256 colors, it'll have the exact alloc size*/ - if(!info->palette) /*allocate palette if empty*/ { - /*room for 256 colors with 4 bytes each*/ - data = (unsigned char*)lodepng_realloc(info->palette, 1024); - if(!data) return 83; /*alloc fail*/ - else info->palette = data; - } - info->palette[4 * info->palettesize + 0] = r; - info->palette[4 * info->palettesize + 1] = g; - info->palette[4 * info->palettesize + 2] = b; - info->palette[4 * info->palettesize + 3] = a; - ++info->palettesize; - return 0; -} - -/*calculate bits per pixel out of colortype and bitdepth*/ -unsigned lodepng_get_bpp(const LodePNGColorMode* info) { - return lodepng_get_bpp_lct(info->colortype, info->bitdepth); -} - -unsigned lodepng_get_channels(const LodePNGColorMode* info) { - return getNumColorChannels(info->colortype); -} - -unsigned lodepng_is_greyscale_type(const LodePNGColorMode* info) { - return info->colortype == LCT_GREY || info->colortype == LCT_GREY_ALPHA; -} - -unsigned lodepng_is_alpha_type(const LodePNGColorMode* info) { - return (info->colortype & 4) != 0; /*4 or 6*/ -} - -unsigned lodepng_is_palette_type(const LodePNGColorMode* info) { - return info->colortype == LCT_PALETTE; -} - -unsigned lodepng_has_palette_alpha(const LodePNGColorMode* info) { - size_t i; - for(i = 0; i != info->palettesize; ++i) { - if(info->palette[i * 4 + 3] < 255) return 1; - } - return 0; -} - -unsigned lodepng_can_have_alpha(const LodePNGColorMode* info) { - return info->key_defined - || lodepng_is_alpha_type(info) - || lodepng_has_palette_alpha(info); -} - -size_t lodepng_get_raw_size_lct(unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth) { - size_t bpp = lodepng_get_bpp_lct(colortype, bitdepth); - size_t n = (size_t)w * (size_t)h; - return ((n / 8) * bpp) + ((n & 7) * bpp + 7) / 8; -} - -size_t lodepng_get_raw_size(unsigned w, unsigned h, const LodePNGColorMode* color) { - return lodepng_get_raw_size_lct(w, h, color->colortype, color->bitdepth); -} - - -#ifdef LODEPNG_COMPILE_PNG -#ifdef LODEPNG_COMPILE_DECODER - -/*in an idat chunk, each scanline is a multiple of 8 bits, unlike the lodepng output buffer, -and in addition has one extra byte per line: the filter byte. So this gives a larger -result than lodepng_get_raw_size. */ -static size_t lodepng_get_raw_size_idat(unsigned w, unsigned h, const LodePNGColorMode* color) { - size_t bpp = lodepng_get_bpp(color); - /* + 1 for the filter byte, and possibly plus padding bits per line */ - size_t line = ((size_t)(w / 8) * bpp) + 1 + ((w & 7) * bpp + 7) / 8; - return (size_t)h * line; -} - -/* Safely check if multiplying two integers will overflow (no undefined -behavior, compiler removing the code, etc...) and output result. */ -static int lodepng_mulofl(size_t a, size_t b, size_t* result) { - *result = a * b; /* Unsigned multiplication is well defined and safe in C90 */ - return (a != 0 && *result / a != b); -} - -/* Safely check if adding two integers will overflow (no undefined -behavior, compiler removing the code, etc...) and output result. */ -static int lodepng_addofl(size_t a, size_t b, size_t* result) { - *result = a + b; /* Unsigned addition is well defined and safe in C90 */ - return *result < a; -} - -/*Safely checks whether size_t overflow can be caused due to amount of pixels. -This check is overcautious rather than precise. If this check indicates no overflow, -you can safely compute in a size_t (but not an unsigned): --(size_t)w * (size_t)h * 8 --amount of bytes in IDAT (including filter, padding and Adam7 bytes) --amount of bytes in raw color model -Returns 1 if overflow possible, 0 if not. -*/ -static int lodepng_pixel_overflow(unsigned w, unsigned h, - const LodePNGColorMode* pngcolor, const LodePNGColorMode* rawcolor) { - size_t bpp = LODEPNG_MAX(lodepng_get_bpp(pngcolor), lodepng_get_bpp(rawcolor)); - size_t numpixels, total; - size_t line; /* bytes per line in worst case */ - - if(lodepng_mulofl((size_t)w, (size_t)h, &numpixels)) return 1; - if(lodepng_mulofl(numpixels, 8, &total)) return 1; /* bit pointer with 8-bit color, or 8 bytes per channel color */ - - /* Bytes per scanline with the expression "(w / 8) * bpp) + ((w & 7) * bpp + 7) / 8" */ - if(lodepng_mulofl((size_t)(w / 8), bpp, &line)) return 1; - if(lodepng_addofl(line, ((w & 7) * bpp + 7) / 8, &line)) return 1; - - if(lodepng_addofl(line, 5, &line)) return 1; /* 5 bytes overhead per line: 1 filterbyte, 4 for Adam7 worst case */ - if(lodepng_mulofl(line, h, &total)) return 1; /* Total bytes in worst case */ - - return 0; /* no overflow */ -} -#endif /*LODEPNG_COMPILE_DECODER*/ -#endif /*LODEPNG_COMPILE_PNG*/ - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - -static void LodePNGUnknownChunks_init(LodePNGInfo* info) { - unsigned i; - for(i = 0; i != 3; ++i) info->unknown_chunks_data[i] = 0; - for(i = 0; i != 3; ++i) info->unknown_chunks_size[i] = 0; -} - -static void LodePNGUnknownChunks_cleanup(LodePNGInfo* info) { - unsigned i; - for(i = 0; i != 3; ++i) lodepng_free(info->unknown_chunks_data[i]); -} - -static unsigned LodePNGUnknownChunks_copy(LodePNGInfo* dest, const LodePNGInfo* src) { - unsigned i; - - LodePNGUnknownChunks_cleanup(dest); - - for(i = 0; i != 3; ++i) { - size_t j; - dest->unknown_chunks_size[i] = src->unknown_chunks_size[i]; - dest->unknown_chunks_data[i] = (unsigned char*)lodepng_malloc(src->unknown_chunks_size[i]); - if(!dest->unknown_chunks_data[i] && dest->unknown_chunks_size[i]) return 83; /*alloc fail*/ - for(j = 0; j < src->unknown_chunks_size[i]; ++j) { - dest->unknown_chunks_data[i][j] = src->unknown_chunks_data[i][j]; - } - } - - return 0; -} - -/******************************************************************************/ - -static void LodePNGText_init(LodePNGInfo* info) { - info->text_num = 0; - info->text_keys = NULL; - info->text_strings = NULL; -} - -static void LodePNGText_cleanup(LodePNGInfo* info) { - size_t i; - for(i = 0; i != info->text_num; ++i) { - string_cleanup(&info->text_keys[i]); - string_cleanup(&info->text_strings[i]); - } - lodepng_free(info->text_keys); - lodepng_free(info->text_strings); -} - -static unsigned LodePNGText_copy(LodePNGInfo* dest, const LodePNGInfo* source) { - size_t i = 0; - dest->text_keys = 0; - dest->text_strings = 0; - dest->text_num = 0; - for(i = 0; i != source->text_num; ++i) { - CERROR_TRY_RETURN(lodepng_add_text(dest, source->text_keys[i], source->text_strings[i])); - } - return 0; -} - -void lodepng_clear_text(LodePNGInfo* info) { - LodePNGText_cleanup(info); -} - -unsigned lodepng_add_text(LodePNGInfo* info, const char* key, const char* str) { - char** new_keys = (char**)(lodepng_realloc(info->text_keys, sizeof(char*) * (info->text_num + 1))); - char** new_strings = (char**)(lodepng_realloc(info->text_strings, sizeof(char*) * (info->text_num + 1))); - if(!new_keys || !new_strings) { - lodepng_free(new_keys); - lodepng_free(new_strings); - return 83; /*alloc fail*/ - } - - ++info->text_num; - info->text_keys = new_keys; - info->text_strings = new_strings; - - info->text_keys[info->text_num - 1] = alloc_string(key); - info->text_strings[info->text_num - 1] = alloc_string(str); - - return 0; -} - -/******************************************************************************/ - -static void LodePNGIText_init(LodePNGInfo* info) { - info->itext_num = 0; - info->itext_keys = NULL; - info->itext_langtags = NULL; - info->itext_transkeys = NULL; - info->itext_strings = NULL; -} - -static void LodePNGIText_cleanup(LodePNGInfo* info) { - size_t i; - for(i = 0; i != info->itext_num; ++i) { - string_cleanup(&info->itext_keys[i]); - string_cleanup(&info->itext_langtags[i]); - string_cleanup(&info->itext_transkeys[i]); - string_cleanup(&info->itext_strings[i]); - } - lodepng_free(info->itext_keys); - lodepng_free(info->itext_langtags); - lodepng_free(info->itext_transkeys); - lodepng_free(info->itext_strings); -} - -static unsigned LodePNGIText_copy(LodePNGInfo* dest, const LodePNGInfo* source) { - size_t i = 0; - dest->itext_keys = 0; - dest->itext_langtags = 0; - dest->itext_transkeys = 0; - dest->itext_strings = 0; - dest->itext_num = 0; - for(i = 0; i != source->itext_num; ++i) { - CERROR_TRY_RETURN(lodepng_add_itext(dest, source->itext_keys[i], source->itext_langtags[i], - source->itext_transkeys[i], source->itext_strings[i])); - } - return 0; -} - -void lodepng_clear_itext(LodePNGInfo* info) { - LodePNGIText_cleanup(info); -} - -unsigned lodepng_add_itext(LodePNGInfo* info, const char* key, const char* langtag, - const char* transkey, const char* str) { - char** new_keys = (char**)(lodepng_realloc(info->itext_keys, sizeof(char*) * (info->itext_num + 1))); - char** new_langtags = (char**)(lodepng_realloc(info->itext_langtags, sizeof(char*) * (info->itext_num + 1))); - char** new_transkeys = (char**)(lodepng_realloc(info->itext_transkeys, sizeof(char*) * (info->itext_num + 1))); - char** new_strings = (char**)(lodepng_realloc(info->itext_strings, sizeof(char*) * (info->itext_num + 1))); - if(!new_keys || !new_langtags || !new_transkeys || !new_strings) { - lodepng_free(new_keys); - lodepng_free(new_langtags); - lodepng_free(new_transkeys); - lodepng_free(new_strings); - return 83; /*alloc fail*/ - } - - ++info->itext_num; - info->itext_keys = new_keys; - info->itext_langtags = new_langtags; - info->itext_transkeys = new_transkeys; - info->itext_strings = new_strings; - - info->itext_keys[info->itext_num - 1] = alloc_string(key); - info->itext_langtags[info->itext_num - 1] = alloc_string(langtag); - info->itext_transkeys[info->itext_num - 1] = alloc_string(transkey); - info->itext_strings[info->itext_num - 1] = alloc_string(str); - - return 0; -} - -/* same as set but does not delete */ -static unsigned lodepng_assign_icc(LodePNGInfo* info, const char* name, const unsigned char* profile, unsigned profile_size) { - info->iccp_name = alloc_string(name); - info->iccp_profile = (unsigned char*)lodepng_malloc(profile_size); - - if(!info->iccp_name || !info->iccp_profile) return 83; /*alloc fail*/ - - memcpy(info->iccp_profile, profile, profile_size); - info->iccp_profile_size = profile_size; - - return 0; /*ok*/ -} - -unsigned lodepng_set_icc(LodePNGInfo* info, const char* name, const unsigned char* profile, unsigned profile_size) { - if(info->iccp_name) lodepng_clear_icc(info); - info->iccp_defined = 1; - - return lodepng_assign_icc(info, name, profile, profile_size); -} - -void lodepng_clear_icc(LodePNGInfo* info) { - string_cleanup(&info->iccp_name); - lodepng_free(info->iccp_profile); - info->iccp_profile = NULL; - info->iccp_profile_size = 0; - info->iccp_defined = 0; -} -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -void lodepng_info_init(LodePNGInfo* info) { - lodepng_color_mode_init(&info->color); - info->interlace_method = 0; - info->compression_method = 0; - info->filter_method = 0; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - info->background_defined = 0; - info->background_r = info->background_g = info->background_b = 0; - - LodePNGText_init(info); - LodePNGIText_init(info); - - info->time_defined = 0; - info->phys_defined = 0; - - info->gama_defined = 0; - info->chrm_defined = 0; - info->srgb_defined = 0; - info->iccp_defined = 0; - info->iccp_name = NULL; - info->iccp_profile = NULL; - - LodePNGUnknownChunks_init(info); -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -} - -void lodepng_info_cleanup(LodePNGInfo* info) { - lodepng_color_mode_cleanup(&info->color); -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - LodePNGText_cleanup(info); - LodePNGIText_cleanup(info); - - lodepng_clear_icc(info); - - LodePNGUnknownChunks_cleanup(info); -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -} - -unsigned lodepng_info_copy(LodePNGInfo* dest, const LodePNGInfo* source) { - lodepng_info_cleanup(dest); - *dest = *source; - lodepng_color_mode_init(&dest->color); - CERROR_TRY_RETURN(lodepng_color_mode_copy(&dest->color, &source->color)); - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - CERROR_TRY_RETURN(LodePNGText_copy(dest, source)); - CERROR_TRY_RETURN(LodePNGIText_copy(dest, source)); - if(source->iccp_defined) { - CERROR_TRY_RETURN(lodepng_assign_icc(dest, source->iccp_name, source->iccp_profile, source->iccp_profile_size)); - } - - LodePNGUnknownChunks_init(dest); - CERROR_TRY_RETURN(LodePNGUnknownChunks_copy(dest, source)); -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - return 0; -} - -/* ////////////////////////////////////////////////////////////////////////// */ - -/*index: bitgroup index, bits: bitgroup size(1, 2 or 4), in: bitgroup value, out: octet array to add bits to*/ -static void addColorBits(unsigned char* out, size_t index, unsigned bits, unsigned in) { - unsigned m = bits == 1 ? 7 : bits == 2 ? 3 : 1; /*8 / bits - 1*/ - /*p = the partial index in the byte, e.g. with 4 palettebits it is 0 for first half or 1 for second half*/ - unsigned p = index & m; - in &= (1u << bits) - 1u; /*filter out any other bits of the input value*/ - in = in << (bits * (m - p)); - if(p == 0) out[index * bits / 8] = in; - else out[index * bits / 8] |= in; -} - -typedef struct ColorTree ColorTree; - -/* -One node of a color tree -This is the data structure used to count the number of unique colors and to get a palette -index for a color. It's like an octree, but because the alpha channel is used too, each -node has 16 instead of 8 children. -*/ -struct ColorTree { - ColorTree* children[16]; /*up to 16 pointers to ColorTree of next level*/ - int index; /*the payload. Only has a meaningful value if this is in the last level*/ -}; - -static void color_tree_init(ColorTree* tree) { - int i; - for(i = 0; i != 16; ++i) tree->children[i] = 0; - tree->index = -1; -} - -static void color_tree_cleanup(ColorTree* tree) { - int i; - for(i = 0; i != 16; ++i) { - if(tree->children[i]) { - color_tree_cleanup(tree->children[i]); - lodepng_free(tree->children[i]); - } - } -} - -/*returns -1 if color not present, its index otherwise*/ -static int color_tree_get(ColorTree* tree, unsigned char r, unsigned char g, unsigned char b, unsigned char a) { - int bit = 0; - for(bit = 0; bit < 8; ++bit) { - int i = 8 * ((r >> bit) & 1) + 4 * ((g >> bit) & 1) + 2 * ((b >> bit) & 1) + 1 * ((a >> bit) & 1); - if(!tree->children[i]) return -1; - else tree = tree->children[i]; - } - return tree ? tree->index : -1; -} - -#ifdef LODEPNG_COMPILE_ENCODER -static int color_tree_has(ColorTree* tree, unsigned char r, unsigned char g, unsigned char b, unsigned char a) { - return color_tree_get(tree, r, g, b, a) >= 0; -} -#endif /*LODEPNG_COMPILE_ENCODER*/ - -/*color is not allowed to already exist. -Index should be >= 0 (it's signed to be compatible with using -1 for "doesn't exist")*/ -static void color_tree_add(ColorTree* tree, - unsigned char r, unsigned char g, unsigned char b, unsigned char a, unsigned index) { - int bit; - for(bit = 0; bit < 8; ++bit) { - int i = 8 * ((r >> bit) & 1) + 4 * ((g >> bit) & 1) + 2 * ((b >> bit) & 1) + 1 * ((a >> bit) & 1); - if(!tree->children[i]) { - tree->children[i] = (ColorTree*)lodepng_malloc(sizeof(ColorTree)); - color_tree_init(tree->children[i]); - } - tree = tree->children[i]; - } - tree->index = (int)index; -} - -/*put a pixel, given its RGBA color, into image of any color type*/ -static unsigned rgba8ToPixel(unsigned char* out, size_t i, - const LodePNGColorMode* mode, ColorTree* tree /*for palette*/, - unsigned char r, unsigned char g, unsigned char b, unsigned char a) { - if(mode->colortype == LCT_GREY) { - unsigned char gray = r; /*((unsigned short)r + g + b) / 3;*/ - if(mode->bitdepth == 8) out[i] = gray; - else if(mode->bitdepth == 16) out[i * 2 + 0] = out[i * 2 + 1] = gray; - else { - /*take the most significant bits of gray*/ - gray = (gray >> (8 - mode->bitdepth)) & ((1 << mode->bitdepth) - 1); - addColorBits(out, i, mode->bitdepth, gray); - } - } else if(mode->colortype == LCT_RGB) { - if(mode->bitdepth == 8) { - out[i * 3 + 0] = r; - out[i * 3 + 1] = g; - out[i * 3 + 2] = b; - } else { - out[i * 6 + 0] = out[i * 6 + 1] = r; - out[i * 6 + 2] = out[i * 6 + 3] = g; - out[i * 6 + 4] = out[i * 6 + 5] = b; - } - } else if(mode->colortype == LCT_PALETTE) { - int index = color_tree_get(tree, r, g, b, a); - if(index < 0) return 82; /*color not in palette*/ - if(mode->bitdepth == 8) out[i] = index; - else addColorBits(out, i, mode->bitdepth, (unsigned)index); - } else if(mode->colortype == LCT_GREY_ALPHA) { - unsigned char gray = r; /*((unsigned short)r + g + b) / 3;*/ - if(mode->bitdepth == 8) { - out[i * 2 + 0] = gray; - out[i * 2 + 1] = a; - } else if(mode->bitdepth == 16) { - out[i * 4 + 0] = out[i * 4 + 1] = gray; - out[i * 4 + 2] = out[i * 4 + 3] = a; - } - } else if(mode->colortype == LCT_RGBA) { - if(mode->bitdepth == 8) { - out[i * 4 + 0] = r; - out[i * 4 + 1] = g; - out[i * 4 + 2] = b; - out[i * 4 + 3] = a; - } else { - out[i * 8 + 0] = out[i * 8 + 1] = r; - out[i * 8 + 2] = out[i * 8 + 3] = g; - out[i * 8 + 4] = out[i * 8 + 5] = b; - out[i * 8 + 6] = out[i * 8 + 7] = a; - } - } - - return 0; /*no error*/ -} - -/*put a pixel, given its RGBA16 color, into image of any color 16-bitdepth type*/ -static void rgba16ToPixel(unsigned char* out, size_t i, - const LodePNGColorMode* mode, - unsigned short r, unsigned short g, unsigned short b, unsigned short a) { - if(mode->colortype == LCT_GREY) { - unsigned short gray = r; /*((unsigned)r + g + b) / 3;*/ - out[i * 2 + 0] = (gray >> 8) & 255; - out[i * 2 + 1] = gray & 255; - } else if(mode->colortype == LCT_RGB) { - out[i * 6 + 0] = (r >> 8) & 255; - out[i * 6 + 1] = r & 255; - out[i * 6 + 2] = (g >> 8) & 255; - out[i * 6 + 3] = g & 255; - out[i * 6 + 4] = (b >> 8) & 255; - out[i * 6 + 5] = b & 255; - } else if(mode->colortype == LCT_GREY_ALPHA) { - unsigned short gray = r; /*((unsigned)r + g + b) / 3;*/ - out[i * 4 + 0] = (gray >> 8) & 255; - out[i * 4 + 1] = gray & 255; - out[i * 4 + 2] = (a >> 8) & 255; - out[i * 4 + 3] = a & 255; - } else if(mode->colortype == LCT_RGBA) { - out[i * 8 + 0] = (r >> 8) & 255; - out[i * 8 + 1] = r & 255; - out[i * 8 + 2] = (g >> 8) & 255; - out[i * 8 + 3] = g & 255; - out[i * 8 + 4] = (b >> 8) & 255; - out[i * 8 + 5] = b & 255; - out[i * 8 + 6] = (a >> 8) & 255; - out[i * 8 + 7] = a & 255; - } -} - -/*Get RGBA8 color of pixel with index i (y * width + x) from the raw image with given color type.*/ -static void getPixelColorRGBA8(unsigned char* r, unsigned char* g, - unsigned char* b, unsigned char* a, - const unsigned char* in, size_t i, - const LodePNGColorMode* mode) { - if(mode->colortype == LCT_GREY) { - if(mode->bitdepth == 8) { - *r = *g = *b = in[i]; - if(mode->key_defined && *r == mode->key_r) *a = 0; - else *a = 255; - } else if(mode->bitdepth == 16) { - *r = *g = *b = in[i * 2 + 0]; - if(mode->key_defined && 256U * in[i * 2 + 0] + in[i * 2 + 1] == mode->key_r) *a = 0; - else *a = 255; - } else { - unsigned highest = ((1U << mode->bitdepth) - 1U); /*highest possible value for this bit depth*/ - size_t j = i * mode->bitdepth; - unsigned value = readBitsFromReversedStream(&j, in, mode->bitdepth); - *r = *g = *b = (value * 255) / highest; - if(mode->key_defined && value == mode->key_r) *a = 0; - else *a = 255; - } - } else if(mode->colortype == LCT_RGB) { - if(mode->bitdepth == 8) { - *r = in[i * 3 + 0]; *g = in[i * 3 + 1]; *b = in[i * 3 + 2]; - if(mode->key_defined && *r == mode->key_r && *g == mode->key_g && *b == mode->key_b) *a = 0; - else *a = 255; - } else { - *r = in[i * 6 + 0]; - *g = in[i * 6 + 2]; - *b = in[i * 6 + 4]; - if(mode->key_defined && 256U * in[i * 6 + 0] + in[i * 6 + 1] == mode->key_r - && 256U * in[i * 6 + 2] + in[i * 6 + 3] == mode->key_g - && 256U * in[i * 6 + 4] + in[i * 6 + 5] == mode->key_b) *a = 0; - else *a = 255; - } - } else if(mode->colortype == LCT_PALETTE) { - unsigned index; - if(mode->bitdepth == 8) index = in[i]; - else { - size_t j = i * mode->bitdepth; - index = readBitsFromReversedStream(&j, in, mode->bitdepth); - } - - if(index >= mode->palettesize) { - /*This is an error according to the PNG spec, but common PNG decoders make it black instead. - Done here too, slightly faster due to no error handling needed.*/ - *r = *g = *b = 0; - *a = 255; - } else { - *r = mode->palette[index * 4 + 0]; - *g = mode->palette[index * 4 + 1]; - *b = mode->palette[index * 4 + 2]; - *a = mode->palette[index * 4 + 3]; - } - } else if(mode->colortype == LCT_GREY_ALPHA) { - if(mode->bitdepth == 8) { - *r = *g = *b = in[i * 2 + 0]; - *a = in[i * 2 + 1]; - } else { - *r = *g = *b = in[i * 4 + 0]; - *a = in[i * 4 + 2]; - } - } else if(mode->colortype == LCT_RGBA) { - if(mode->bitdepth == 8) { - *r = in[i * 4 + 0]; - *g = in[i * 4 + 1]; - *b = in[i * 4 + 2]; - *a = in[i * 4 + 3]; - } else { - *r = in[i * 8 + 0]; - *g = in[i * 8 + 2]; - *b = in[i * 8 + 4]; - *a = in[i * 8 + 6]; - } - } -} - -/*Similar to getPixelColorRGBA8, but with all the for loops inside of the color -mode test cases, optimized to convert the colors much faster, when converting -to RGBA or RGB with 8 bit per cannel. buffer must be RGBA or RGB output with -enough memory, if has_alpha is true the output is RGBA. mode has the color mode -of the input buffer.*/ -static void getPixelColorsRGBA8(unsigned char* buffer, size_t numpixels, - unsigned has_alpha, const unsigned char* in, - const LodePNGColorMode* mode) { - unsigned num_channels = has_alpha ? 4 : 3; - size_t i; - if(mode->colortype == LCT_GREY) { - if(mode->bitdepth == 8) { - for(i = 0; i != numpixels; ++i, buffer += num_channels) { - buffer[0] = buffer[1] = buffer[2] = in[i]; - if(has_alpha) buffer[3] = mode->key_defined && in[i] == mode->key_r ? 0 : 255; - } - } else if(mode->bitdepth == 16) { - for(i = 0; i != numpixels; ++i, buffer += num_channels) { - buffer[0] = buffer[1] = buffer[2] = in[i * 2]; - if(has_alpha) buffer[3] = mode->key_defined && 256U * in[i * 2 + 0] + in[i * 2 + 1] == mode->key_r ? 0 : 255; - } - } else { - unsigned highest = ((1U << mode->bitdepth) - 1U); /*highest possible value for this bit depth*/ - size_t j = 0; - for(i = 0; i != numpixels; ++i, buffer += num_channels) { - unsigned value = readBitsFromReversedStream(&j, in, mode->bitdepth); - buffer[0] = buffer[1] = buffer[2] = (value * 255) / highest; - if(has_alpha) buffer[3] = mode->key_defined && value == mode->key_r ? 0 : 255; - } - } - } else if(mode->colortype == LCT_RGB) { - if(mode->bitdepth == 8) { - for(i = 0; i != numpixels; ++i, buffer += num_channels) { - buffer[0] = in[i * 3 + 0]; - buffer[1] = in[i * 3 + 1]; - buffer[2] = in[i * 3 + 2]; - if(has_alpha) buffer[3] = mode->key_defined && buffer[0] == mode->key_r - && buffer[1]== mode->key_g && buffer[2] == mode->key_b ? 0 : 255; - } - } else { - for(i = 0; i != numpixels; ++i, buffer += num_channels) { - buffer[0] = in[i * 6 + 0]; - buffer[1] = in[i * 6 + 2]; - buffer[2] = in[i * 6 + 4]; - if(has_alpha) buffer[3] = mode->key_defined - && 256U * in[i * 6 + 0] + in[i * 6 + 1] == mode->key_r - && 256U * in[i * 6 + 2] + in[i * 6 + 3] == mode->key_g - && 256U * in[i * 6 + 4] + in[i * 6 + 5] == mode->key_b ? 0 : 255; - } - } - } else if(mode->colortype == LCT_PALETTE) { - unsigned index; - size_t j = 0; - for(i = 0; i != numpixels; ++i, buffer += num_channels) { - if(mode->bitdepth == 8) index = in[i]; - else index = readBitsFromReversedStream(&j, in, mode->bitdepth); - - if(index >= mode->palettesize) { - /*This is an error according to the PNG spec, but most PNG decoders make it black instead. - Done here too, slightly faster due to no error handling needed.*/ - buffer[0] = buffer[1] = buffer[2] = 0; - if(has_alpha) buffer[3] = 255; - } else { - buffer[0] = mode->palette[index * 4 + 0]; - buffer[1] = mode->palette[index * 4 + 1]; - buffer[2] = mode->palette[index * 4 + 2]; - if(has_alpha) buffer[3] = mode->palette[index * 4 + 3]; - } - } - } else if(mode->colortype == LCT_GREY_ALPHA) { - if(mode->bitdepth == 8) { - for(i = 0; i != numpixels; ++i, buffer += num_channels) { - buffer[0] = buffer[1] = buffer[2] = in[i * 2 + 0]; - if(has_alpha) buffer[3] = in[i * 2 + 1]; - } - } else { - for(i = 0; i != numpixels; ++i, buffer += num_channels) { - buffer[0] = buffer[1] = buffer[2] = in[i * 4 + 0]; - if(has_alpha) buffer[3] = in[i * 4 + 2]; - } - } - } else if(mode->colortype == LCT_RGBA) { - if(mode->bitdepth == 8) { - for(i = 0; i != numpixels; ++i, buffer += num_channels) { - buffer[0] = in[i * 4 + 0]; - buffer[1] = in[i * 4 + 1]; - buffer[2] = in[i * 4 + 2]; - if(has_alpha) buffer[3] = in[i * 4 + 3]; - } - } else { - for(i = 0; i != numpixels; ++i, buffer += num_channels) { - buffer[0] = in[i * 8 + 0]; - buffer[1] = in[i * 8 + 2]; - buffer[2] = in[i * 8 + 4]; - if(has_alpha) buffer[3] = in[i * 8 + 6]; - } - } - } -} - -/*Get RGBA16 color of pixel with index i (y * width + x) from the raw image with -given color type, but the given color type must be 16-bit itself.*/ -static void getPixelColorRGBA16(unsigned short* r, unsigned short* g, unsigned short* b, unsigned short* a, - const unsigned char* in, size_t i, const LodePNGColorMode* mode) { - if(mode->colortype == LCT_GREY) { - *r = *g = *b = 256 * in[i * 2 + 0] + in[i * 2 + 1]; - if(mode->key_defined && 256U * in[i * 2 + 0] + in[i * 2 + 1] == mode->key_r) *a = 0; - else *a = 65535; - } else if(mode->colortype == LCT_RGB) { - *r = 256u * in[i * 6 + 0] + in[i * 6 + 1]; - *g = 256u * in[i * 6 + 2] + in[i * 6 + 3]; - *b = 256u * in[i * 6 + 4] + in[i * 6 + 5]; - if(mode->key_defined - && 256u * in[i * 6 + 0] + in[i * 6 + 1] == mode->key_r - && 256u * in[i * 6 + 2] + in[i * 6 + 3] == mode->key_g - && 256u * in[i * 6 + 4] + in[i * 6 + 5] == mode->key_b) *a = 0; - else *a = 65535; - } else if(mode->colortype == LCT_GREY_ALPHA) { - *r = *g = *b = 256u * in[i * 4 + 0] + in[i * 4 + 1]; - *a = 256u * in[i * 4 + 2] + in[i * 4 + 3]; - } else if(mode->colortype == LCT_RGBA) { - *r = 256u * in[i * 8 + 0] + in[i * 8 + 1]; - *g = 256u * in[i * 8 + 2] + in[i * 8 + 3]; - *b = 256u * in[i * 8 + 4] + in[i * 8 + 5]; - *a = 256u * in[i * 8 + 6] + in[i * 8 + 7]; - } -} - -unsigned lodepng_convert(unsigned char* out, const unsigned char* in, - const LodePNGColorMode* mode_out, const LodePNGColorMode* mode_in, - unsigned w, unsigned h) { - size_t i; - ColorTree tree; - size_t numpixels = (size_t)w * (size_t)h; - unsigned error = 0; - - if(lodepng_color_mode_equal(mode_out, mode_in)) { - size_t numbytes = lodepng_get_raw_size(w, h, mode_in); - for(i = 0; i != numbytes; ++i) out[i] = in[i]; - return 0; - } - - if(mode_out->colortype == LCT_PALETTE) { - size_t palettesize = mode_out->palettesize; - const unsigned char* palette = mode_out->palette; - size_t palsize = (size_t)1u << mode_out->bitdepth; - /*if the user specified output palette but did not give the values, assume - they want the values of the input color type (assuming that one is palette). - Note that we never create a new palette ourselves.*/ - if(palettesize == 0) { - palettesize = mode_in->palettesize; - palette = mode_in->palette; - /*if the input was also palette with same bitdepth, then the color types are also - equal, so copy literally. This to preserve the exact indices that were in the PNG - even in case there are duplicate colors in the palette.*/ - if (mode_in->colortype == LCT_PALETTE && mode_in->bitdepth == mode_out->bitdepth) { - size_t numbytes = lodepng_get_raw_size(w, h, mode_in); - for(i = 0; i != numbytes; ++i) out[i] = in[i]; - return 0; - } - } - if(palettesize < palsize) palsize = palettesize; - color_tree_init(&tree); - for(i = 0; i != palsize; ++i) { - const unsigned char* p = &palette[i * 4]; - color_tree_add(&tree, p[0], p[1], p[2], p[3], (unsigned)i); - } - } - - if(mode_in->bitdepth == 16 && mode_out->bitdepth == 16) { - for(i = 0; i != numpixels; ++i) { - unsigned short r = 0, g = 0, b = 0, a = 0; - getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode_in); - rgba16ToPixel(out, i, mode_out, r, g, b, a); - } - } else if(mode_out->bitdepth == 8 && mode_out->colortype == LCT_RGBA) { - getPixelColorsRGBA8(out, numpixels, 1, in, mode_in); - } else if(mode_out->bitdepth == 8 && mode_out->colortype == LCT_RGB) { - getPixelColorsRGBA8(out, numpixels, 0, in, mode_in); - } else { - unsigned char r = 0, g = 0, b = 0, a = 0; - for(i = 0; i != numpixels; ++i) { - getPixelColorRGBA8(&r, &g, &b, &a, in, i, mode_in); - error = rgba8ToPixel(out, i, mode_out, &tree, r, g, b, a); - if (error) break; - } - } - - if(mode_out->colortype == LCT_PALETTE) { - color_tree_cleanup(&tree); - } - - return error; -} - - -/* Converts a single rgb color without alpha from one type to another, color bits truncated to -their bitdepth. In case of single channel (gray or palette), only the r channel is used. Slow -function, do not use to process all pixels of an image. Alpha channel not supported on purpose: -this is for bKGD, supporting alpha may prevent it from finding a color in the palette, from the -specification it looks like bKGD should ignore the alpha values of the palette since it can use -any palette index but doesn't have an alpha channel. Idem with ignoring color key. */ -unsigned lodepng_convert_rgb( - unsigned* r_out, unsigned* g_out, unsigned* b_out, - unsigned r_in, unsigned g_in, unsigned b_in, - const LodePNGColorMode* mode_out, const LodePNGColorMode* mode_in) { - unsigned r = 0, g = 0, b = 0; - unsigned mul = 65535 / ((1u << mode_in->bitdepth) - 1u); /*65535, 21845, 4369, 257, 1*/ - unsigned shift = 16 - mode_out->bitdepth; - - if(mode_in->colortype == LCT_GREY || mode_in->colortype == LCT_GREY_ALPHA) { - r = g = b = r_in * mul; - } else if(mode_in->colortype == LCT_RGB || mode_in->colortype == LCT_RGBA) { - r = r_in * mul; - g = g_in * mul; - b = b_in * mul; - } else if(mode_in->colortype == LCT_PALETTE) { - if(r_in >= mode_in->palettesize) return 82; - r = mode_in->palette[r_in * 4 + 0] * 257u; - g = mode_in->palette[r_in * 4 + 1] * 257u; - b = mode_in->palette[r_in * 4 + 2] * 257u; - } else { - return 31; - } - - /* now convert to output format */ - if(mode_out->colortype == LCT_GREY || mode_out->colortype == LCT_GREY_ALPHA) { - *r_out = r >> shift ; - } else if(mode_out->colortype == LCT_RGB || mode_out->colortype == LCT_RGBA) { - *r_out = r >> shift ; - *g_out = g >> shift ; - *b_out = b >> shift ; - } else if(mode_out->colortype == LCT_PALETTE) { - unsigned i; - /* a 16-bit color cannot be in the palette */ - if((r >> 8) != (r & 255) || (g >> 8) != (g & 255) || (b >> 8) != (b & 255)) return 82; - for(i = 0; i < mode_out->palettesize; i++) { - unsigned j = i * 4; - if((r >> 8) == mode_out->palette[j + 0] && (g >> 8) == mode_out->palette[j + 1] && - (b >> 8) == mode_out->palette[j + 2]) { - *r_out = i; - return 0; - } - } - return 82; - } else { - return 31; - } - - return 0; -} - -#ifdef LODEPNG_COMPILE_ENCODER - -void lodepng_color_profile_init(LodePNGColorProfile* profile) { - profile->colored = 0; - profile->key = 0; - profile->key_r = profile->key_g = profile->key_b = 0; - profile->alpha = 0; - profile->numcolors = 0; - profile->bits = 1; - profile->numpixels = 0; -} - -/*function used for debug purposes with C++*/ -/*void printColorProfile(LodePNGColorProfile* p) { - std::cout << "colored: " << (int)p->colored << ", "; - std::cout << "key: " << (int)p->key << ", "; - std::cout << "key_r: " << (int)p->key_r << ", "; - std::cout << "key_g: " << (int)p->key_g << ", "; - std::cout << "key_b: " << (int)p->key_b << ", "; - std::cout << "alpha: " << (int)p->alpha << ", "; - std::cout << "numcolors: " << (int)p->numcolors << ", "; - std::cout << "bits: " << (int)p->bits << std::endl; -}*/ - -/*Returns how many bits needed to represent given value (max 8 bit)*/ -static unsigned getValueRequiredBits(unsigned char value) { - if(value == 0 || value == 255) return 1; - /*The scaling of 2-bit and 4-bit values uses multiples of 85 and 17*/ - if(value % 17 == 0) return value % 85 == 0 ? 2 : 4; - return 8; -} - -/*profile must already have been inited. -It's ok to set some parameters of profile to done already.*/ -unsigned lodepng_get_color_profile(LodePNGColorProfile* profile, - const unsigned char* in, unsigned w, unsigned h, - const LodePNGColorMode* mode_in) { - unsigned error = 0; - size_t i; - ColorTree tree; - size_t numpixels = (size_t)w * (size_t)h; - - /* mark things as done already if it would be impossible to have a more expensive case */ - unsigned colored_done = lodepng_is_greyscale_type(mode_in) ? 1 : 0; - unsigned alpha_done = lodepng_can_have_alpha(mode_in) ? 0 : 1; - unsigned numcolors_done = 0; - unsigned bpp = lodepng_get_bpp(mode_in); - unsigned bits_done = (profile->bits == 1 && bpp == 1) ? 1 : 0; - unsigned sixteen = 0; /* whether the input image is 16 bit */ - unsigned maxnumcolors = 257; - if(bpp <= 8) maxnumcolors = LODEPNG_MIN(257, profile->numcolors + (1u << bpp)); - - profile->numpixels += numpixels; - - color_tree_init(&tree); - - /*If the profile was already filled in from previous data, fill its palette in tree - and mark things as done already if we know they are the most expensive case already*/ - if(profile->alpha) alpha_done = 1; - if(profile->colored) colored_done = 1; - if(profile->bits == 16) numcolors_done = 1; - if(profile->bits >= bpp) bits_done = 1; - if(profile->numcolors >= maxnumcolors) numcolors_done = 1; - - if(!numcolors_done) { - for(i = 0; i < profile->numcolors; i++) { - const unsigned char* color = &profile->palette[i * 4]; - color_tree_add(&tree, color[0], color[1], color[2], color[3], (unsigned int)i); - } - } - - /*Check if the 16-bit input is truly 16-bit*/ - if(mode_in->bitdepth == 16 && !sixteen) { - unsigned short r, g, b, a; - for(i = 0; i != numpixels; ++i) { - getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode_in); - if((r & 255) != ((r >> 8) & 255) || (g & 255) != ((g >> 8) & 255) || - (b & 255) != ((b >> 8) & 255) || (a & 255) != ((a >> 8) & 255)) /*first and second byte differ*/ { - profile->bits = 16; - sixteen = 1; - bits_done = 1; - numcolors_done = 1; /*counting colors no longer useful, palette doesn't support 16-bit*/ - break; - } - } - } - - if(sixteen) { - unsigned short r = 0, g = 0, b = 0, a = 0; - - for(i = 0; i != numpixels; ++i) { - getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode_in); - - if(!colored_done && (r != g || r != b)) { - profile->colored = 1; - colored_done = 1; - } - - if(!alpha_done) { - unsigned matchkey = (r == profile->key_r && g == profile->key_g && b == profile->key_b); - if(a != 65535 && (a != 0 || (profile->key && !matchkey))) { - profile->alpha = 1; - profile->key = 0; - alpha_done = 1; - } else if(a == 0 && !profile->alpha && !profile->key) { - profile->key = 1; - profile->key_r = r; - profile->key_g = g; - profile->key_b = b; - } else if(a == 65535 && profile->key && matchkey) { - /* Color key cannot be used if an opaque pixel also has that RGB color. */ - profile->alpha = 1; - profile->key = 0; - alpha_done = 1; - } - } - if(alpha_done && numcolors_done && colored_done && bits_done) break; - } - - if(profile->key && !profile->alpha) { - for(i = 0; i != numpixels; ++i) { - getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode_in); - if(a != 0 && r == profile->key_r && g == profile->key_g && b == profile->key_b) { - /* Color key cannot be used if an opaque pixel also has that RGB color. */ - profile->alpha = 1; - profile->key = 0; - alpha_done = 1; - } - } - } - } else /* < 16-bit */ { - unsigned char r = 0, g = 0, b = 0, a = 0; - for(i = 0; i != numpixels; ++i) { - getPixelColorRGBA8(&r, &g, &b, &a, in, i, mode_in); - - if(!bits_done && profile->bits < 8) { - /*only r is checked, < 8 bits is only relevant for grayscale*/ - unsigned bits = getValueRequiredBits(r); - if(bits > profile->bits) profile->bits = bits; - } - bits_done = (profile->bits >= bpp); - - if(!colored_done && (r != g || r != b)) { - profile->colored = 1; - colored_done = 1; - if(profile->bits < 8) profile->bits = 8; /*PNG has no colored modes with less than 8-bit per channel*/ - } - - if(!alpha_done) { - unsigned matchkey = (r == profile->key_r && g == profile->key_g && b == profile->key_b); - if(a != 255 && (a != 0 || (profile->key && !matchkey))) { - profile->alpha = 1; - profile->key = 0; - alpha_done = 1; - if(profile->bits < 8) profile->bits = 8; /*PNG has no alphachannel modes with less than 8-bit per channel*/ - } else if(a == 0 && !profile->alpha && !profile->key) { - profile->key = 1; - profile->key_r = r; - profile->key_g = g; - profile->key_b = b; - } else if(a == 255 && profile->key && matchkey) { - /* Color key cannot be used if an opaque pixel also has that RGB color. */ - profile->alpha = 1; - profile->key = 0; - alpha_done = 1; - if(profile->bits < 8) profile->bits = 8; /*PNG has no alphachannel modes with less than 8-bit per channel*/ - } - } - - if(!numcolors_done) { - if(!color_tree_has(&tree, r, g, b, a)) { - color_tree_add(&tree, r, g, b, a, profile->numcolors); - if(profile->numcolors < 256) { - unsigned char* p = profile->palette; - unsigned n = profile->numcolors; - p[n * 4 + 0] = r; - p[n * 4 + 1] = g; - p[n * 4 + 2] = b; - p[n * 4 + 3] = a; - } - ++profile->numcolors; - numcolors_done = profile->numcolors >= maxnumcolors; - } - } - - if(alpha_done && numcolors_done && colored_done && bits_done) break; - } - - if(profile->key && !profile->alpha) { - for(i = 0; i != numpixels; ++i) { - getPixelColorRGBA8(&r, &g, &b, &a, in, i, mode_in); - if(a != 0 && r == profile->key_r && g == profile->key_g && b == profile->key_b) { - /* Color key cannot be used if an opaque pixel also has that RGB color. */ - profile->alpha = 1; - profile->key = 0; - alpha_done = 1; - if(profile->bits < 8) profile->bits = 8; /*PNG has no alphachannel modes with less than 8-bit per channel*/ - } - } - } - - /*make the profile's key always 16-bit for consistency - repeat each byte twice*/ - profile->key_r += (profile->key_r << 8); - profile->key_g += (profile->key_g << 8); - profile->key_b += (profile->key_b << 8); - } - - color_tree_cleanup(&tree); - return error; -} - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS -/*Adds a single color to the color profile. The profile must already have been inited. The color must be given as 16-bit -(with 2 bytes repeating for 8-bit and 65535 for opaque alpha channel). This function is expensive, do not call it for -all pixels of an image but only for a few additional values. */ -static unsigned lodepng_color_profile_add(LodePNGColorProfile* profile, - unsigned r, unsigned g, unsigned b, unsigned a) { - unsigned error = 0; - unsigned char image[8]; - LodePNGColorMode mode; - lodepng_color_mode_init(&mode); - image[0] = r >> 8; image[1] = r; image[2] = g >> 8; image[3] = g; - image[4] = b >> 8; image[5] = b; image[6] = a >> 8; image[7] = a; - mode.bitdepth = 16; - mode.colortype = LCT_RGBA; - error = lodepng_get_color_profile(profile, image, 1, 1, &mode); - lodepng_color_mode_cleanup(&mode); - return error; -} -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -/*Autochoose color model given the computed profile. mode_in is to copy palette order from -when relevant.*/ -static unsigned auto_choose_color_from_profile(LodePNGColorMode* mode_out, - const LodePNGColorMode* mode_in, - const LodePNGColorProfile* prof) { - unsigned error = 0; - unsigned palettebits, palette_ok; - size_t i, n; - size_t numpixels = prof->numpixels; - - unsigned alpha = prof->alpha; - unsigned key = prof->key; - unsigned bits = prof->bits; - - mode_out->key_defined = 0; - - if(key && numpixels <= 16) { - alpha = 1; /*too few pixels to justify tRNS chunk overhead*/ - key = 0; - if(bits < 8) bits = 8; /*PNG has no alphachannel modes with less than 8-bit per channel*/ - } - n = prof->numcolors; - palettebits = n <= 2 ? 1 : (n <= 4 ? 2 : (n <= 16 ? 4 : 8)); - palette_ok = n <= 256 && bits <= 8; - if(numpixels < n * 2) palette_ok = 0; /*don't add palette overhead if image has only a few pixels*/ - if(!prof->colored && bits <= palettebits) palette_ok = 0; /*gray is less overhead*/ - - if(palette_ok) { - const unsigned char* p = prof->palette; - lodepng_palette_clear(mode_out); /*remove potential earlier palette*/ - for(i = 0; i != prof->numcolors; ++i) { - error = lodepng_palette_add(mode_out, p[i * 4 + 0], p[i * 4 + 1], p[i * 4 + 2], p[i * 4 + 3]); - if(error) break; - } - - mode_out->colortype = LCT_PALETTE; - mode_out->bitdepth = palettebits; - - if(mode_in->colortype == LCT_PALETTE && mode_in->palettesize >= mode_out->palettesize - && mode_in->bitdepth == mode_out->bitdepth) { - /*If input should have same palette colors, keep original to preserve its order and prevent conversion*/ - lodepng_color_mode_cleanup(mode_out); - lodepng_color_mode_copy(mode_out, mode_in); - } - } else /*8-bit or 16-bit per channel*/ { - mode_out->bitdepth = bits; - mode_out->colortype = alpha ? (prof->colored ? LCT_RGBA : LCT_GREY_ALPHA) - : (prof->colored ? LCT_RGB : LCT_GREY); - - if(key) { - unsigned mask = (1u << mode_out->bitdepth) - 1u; /*profile always uses 16-bit, mask converts it*/ - mode_out->key_r = prof->key_r & mask; - mode_out->key_g = prof->key_g & mask; - mode_out->key_b = prof->key_b & mask; - mode_out->key_defined = 1; - } - } - - return error; -} - -/*Automatically chooses color type that gives smallest amount of bits in the -output image, e.g. gray if there are only grayscale pixels, palette if there -are less than 256 colors, color key if only single transparent color, ... -Updates values of mode with a potentially smaller color model. mode_out should -contain the user chosen color model, but will be overwritten with the new chosen one.*/ -unsigned lodepng_auto_choose_color(LodePNGColorMode* mode_out, - const unsigned char* image, unsigned w, unsigned h, - const LodePNGColorMode* mode_in) { - unsigned error = 0; - LodePNGColorProfile prof; - lodepng_color_profile_init(&prof); - error = lodepng_get_color_profile(&prof, image, w, h, mode_in); - if(error) return error; - return auto_choose_color_from_profile(mode_out, mode_in, &prof); -} - -#endif /* #ifdef LODEPNG_COMPILE_ENCODER */ - -/* -Paeth predicter, used by PNG filter type 4 -The parameters are of type short, but should come from unsigned chars, the shorts -are only needed to make the paeth calculation correct. -*/ -static unsigned char paethPredictor(short a, short b, short c) { - short pa = abs(b - c); - short pb = abs(a - c); - short pc = abs(a + b - c - c); - - if(pc < pa && pc < pb) return (unsigned char)c; - else if(pb < pa) return (unsigned char)b; - else return (unsigned char)a; -} - -/*shared values used by multiple Adam7 related functions*/ - -static const unsigned ADAM7_IX[7] = { 0, 4, 0, 2, 0, 1, 0 }; /*x start values*/ -static const unsigned ADAM7_IY[7] = { 0, 0, 4, 0, 2, 0, 1 }; /*y start values*/ -static const unsigned ADAM7_DX[7] = { 8, 8, 4, 4, 2, 2, 1 }; /*x delta values*/ -static const unsigned ADAM7_DY[7] = { 8, 8, 8, 4, 4, 2, 2 }; /*y delta values*/ - -/* -Outputs various dimensions and positions in the image related to the Adam7 reduced images. -passw: output containing the width of the 7 passes -passh: output containing the height of the 7 passes -filter_passstart: output containing the index of the start and end of each - reduced image with filter bytes -padded_passstart output containing the index of the start and end of each - reduced image when without filter bytes but with padded scanlines -passstart: output containing the index of the start and end of each reduced - image without padding between scanlines, but still padding between the images -w, h: width and height of non-interlaced image -bpp: bits per pixel -"padded" is only relevant if bpp is less than 8 and a scanline or image does not - end at a full byte -*/ -static void Adam7_getpassvalues(unsigned passw[7], unsigned passh[7], size_t filter_passstart[8], - size_t padded_passstart[8], size_t passstart[8], unsigned w, unsigned h, unsigned bpp) { - /*the passstart values have 8 values: the 8th one indicates the byte after the end of the 7th (= last) pass*/ - unsigned i; - - /*calculate width and height in pixels of each pass*/ - for(i = 0; i != 7; ++i) { - passw[i] = (w + ADAM7_DX[i] - ADAM7_IX[i] - 1) / ADAM7_DX[i]; - passh[i] = (h + ADAM7_DY[i] - ADAM7_IY[i] - 1) / ADAM7_DY[i]; - if(passw[i] == 0) passh[i] = 0; - if(passh[i] == 0) passw[i] = 0; - } - - filter_passstart[0] = padded_passstart[0] = passstart[0] = 0; - for(i = 0; i != 7; ++i) { - /*if passw[i] is 0, it's 0 bytes, not 1 (no filtertype-byte)*/ - filter_passstart[i + 1] = filter_passstart[i] - + ((passw[i] && passh[i]) ? passh[i] * (1 + (passw[i] * bpp + 7) / 8) : 0); - /*bits padded if needed to fill full byte at end of each scanline*/ - padded_passstart[i + 1] = padded_passstart[i] + passh[i] * ((passw[i] * bpp + 7) / 8); - /*only padded at end of reduced image*/ - passstart[i + 1] = passstart[i] + (passh[i] * passw[i] * bpp + 7) / 8; - } -} - -#ifdef LODEPNG_COMPILE_DECODER - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / PNG Decoder / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -/*read the information from the header and store it in the LodePNGInfo. return value is error*/ -unsigned lodepng_inspect(unsigned* w, unsigned* h, LodePNGState* state, - const unsigned char* in, size_t insize) { - unsigned width, height; - LodePNGInfo* info = &state->info_png; - if(insize == 0 || in == 0) { - CERROR_RETURN_ERROR(state->error, 48); /*error: the given data is empty*/ - } - if(insize < 33) { - CERROR_RETURN_ERROR(state->error, 27); /*error: the data length is smaller than the length of a PNG header*/ - } - - /*when decoding a new PNG image, make sure all parameters created after previous decoding are reset*/ - /* TODO: remove this. One should use a new LodePNGState for new sessions */ - lodepng_info_cleanup(info); - lodepng_info_init(info); - - if(in[0] != 137 || in[1] != 80 || in[2] != 78 || in[3] != 71 - || in[4] != 13 || in[5] != 10 || in[6] != 26 || in[7] != 10) { - CERROR_RETURN_ERROR(state->error, 28); /*error: the first 8 bytes are not the correct PNG signature*/ - } - if(lodepng_chunk_length(in + 8) != 13) { - CERROR_RETURN_ERROR(state->error, 94); /*error: header size must be 13 bytes*/ - } - if(!lodepng_chunk_type_equals(in + 8, "IHDR")) { - CERROR_RETURN_ERROR(state->error, 29); /*error: it doesn't start with a IHDR chunk!*/ - } - - /*read the values given in the header*/ - width = lodepng_read32bitInt(&in[16]); - height = lodepng_read32bitInt(&in[20]); - info->color.bitdepth = in[24]; - info->color.colortype = (LodePNGColorType)in[25]; - info->compression_method = in[26]; - info->filter_method = in[27]; - info->interlace_method = in[28]; - - if(width == 0 || height == 0) { - CERROR_RETURN_ERROR(state->error, 93); - } - - if(w) *w = width; - if(h) *h = height; - - if(!state->decoder.ignore_crc) { - unsigned CRC = lodepng_read32bitInt(&in[29]); - unsigned checksum = lodepng_crc32(&in[12], 17); - if(CRC != checksum) { - CERROR_RETURN_ERROR(state->error, 57); /*invalid CRC*/ - } - } - - /*error: only compression method 0 is allowed in the specification*/ - if(info->compression_method != 0) CERROR_RETURN_ERROR(state->error, 32); - /*error: only filter method 0 is allowed in the specification*/ - if(info->filter_method != 0) CERROR_RETURN_ERROR(state->error, 33); - /*error: only interlace methods 0 and 1 exist in the specification*/ - if(info->interlace_method > 1) CERROR_RETURN_ERROR(state->error, 34); - - state->error = checkColorValidity(info->color.colortype, info->color.bitdepth); - return state->error; -} - -static unsigned unfilterScanline(unsigned char* recon, const unsigned char* scanline, const unsigned char* precon, - size_t bytewidth, unsigned char filterType, size_t length) { - /* - For PNG filter method 0 - unfilter a PNG image scanline by scanline. when the pixels are smaller than 1 byte, - the filter works byte per byte (bytewidth = 1) - precon is the previous unfiltered scanline, recon the result, scanline the current one - the incoming scanlines do NOT include the filtertype byte, that one is given in the parameter filterType instead - recon and scanline MAY be the same memory address! precon must be disjoint. - */ - - size_t i; - switch(filterType) { - case 0: - for(i = 0; i != length; ++i) recon[i] = scanline[i]; - break; - case 1: - for(i = 0; i != bytewidth; ++i) recon[i] = scanline[i]; - for(i = bytewidth; i < length; ++i) recon[i] = scanline[i] + recon[i - bytewidth]; - break; - case 2: - if(precon) { - for(i = 0; i != length; ++i) recon[i] = scanline[i] + precon[i]; - } else { - for(i = 0; i != length; ++i) recon[i] = scanline[i]; - } - break; - case 3: - if(precon) { - for(i = 0; i != bytewidth; ++i) recon[i] = scanline[i] + (precon[i] >> 1); - for(i = bytewidth; i < length; ++i) recon[i] = scanline[i] + ((recon[i - bytewidth] + precon[i]) >> 1); - } else { - for(i = 0; i != bytewidth; ++i) recon[i] = scanline[i]; - for(i = bytewidth; i < length; ++i) recon[i] = scanline[i] + (recon[i - bytewidth] >> 1); - } - break; - case 4: - if(precon) { - for(i = 0; i != bytewidth; ++i) { - recon[i] = (scanline[i] + precon[i]); /*paethPredictor(0, precon[i], 0) is always precon[i]*/ - } - for(i = bytewidth; i < length; ++i) { - recon[i] = (scanline[i] + paethPredictor(recon[i - bytewidth], precon[i], precon[i - bytewidth])); - } - } else { - for(i = 0; i != bytewidth; ++i) { - recon[i] = scanline[i]; - } - for(i = bytewidth; i < length; ++i) { - /*paethPredictor(recon[i - bytewidth], 0, 0) is always recon[i - bytewidth]*/ - recon[i] = (scanline[i] + recon[i - bytewidth]); - } - } - break; - default: return 36; /*error: unexisting filter type given*/ - } - return 0; -} - -static unsigned unfilter(unsigned char* out, const unsigned char* in, unsigned w, unsigned h, unsigned bpp) { - /* - For PNG filter method 0 - this function unfilters a single image (e.g. without interlacing this is called once, with Adam7 seven times) - out must have enough bytes allocated already, in must have the scanlines + 1 filtertype byte per scanline - w and h are image dimensions or dimensions of reduced image, bpp is bits per pixel - in and out are allowed to be the same memory address (but aren't the same size since in has the extra filter bytes) - */ - - unsigned y; - unsigned char* prevline = 0; - - /*bytewidth is used for filtering, is 1 when bpp < 8, number of bytes per pixel otherwise*/ - size_t bytewidth = (bpp + 7) / 8; - size_t linebytes = (w * bpp + 7) / 8; - - for(y = 0; y < h; ++y) { - size_t outindex = linebytes * y; - size_t inindex = (1 + linebytes) * y; /*the extra filterbyte added to each row*/ - unsigned char filterType = in[inindex]; - - CERROR_TRY_RETURN(unfilterScanline(&out[outindex], &in[inindex + 1], prevline, bytewidth, filterType, linebytes)); - - prevline = &out[outindex]; - } - - return 0; -} - -/* -in: Adam7 interlaced image, with no padding bits between scanlines, but between - reduced images so that each reduced image starts at a byte. -out: the same pixels, but re-ordered so that they're now a non-interlaced image with size w*h -bpp: bits per pixel -out has the following size in bits: w * h * bpp. -in is possibly bigger due to padding bits between reduced images. -out must be big enough AND must be 0 everywhere if bpp < 8 in the current implementation -(because that's likely a little bit faster) -NOTE: comments about padding bits are only relevant if bpp < 8 -*/ -static void Adam7_deinterlace(unsigned char* out, const unsigned char* in, unsigned w, unsigned h, unsigned bpp) { - unsigned passw[7], passh[7]; - size_t filter_passstart[8], padded_passstart[8], passstart[8]; - unsigned i; - - Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp); - - if(bpp >= 8) { - for(i = 0; i != 7; ++i) { - unsigned x, y, b; - size_t bytewidth = bpp / 8; - for(y = 0; y < passh[i]; ++y) - for(x = 0; x < passw[i]; ++x) { - size_t pixelinstart = passstart[i] + (y * passw[i] + x) * bytewidth; - size_t pixeloutstart = ((ADAM7_IY[i] + y * ADAM7_DY[i]) * w + ADAM7_IX[i] + x * ADAM7_DX[i]) * bytewidth; - for(b = 0; b < bytewidth; ++b) { - out[pixeloutstart + b] = in[pixelinstart + b]; - } - } - } - } else /*bpp < 8: Adam7 with pixels < 8 bit is a bit trickier: with bit pointers*/ { - for(i = 0; i != 7; ++i) { - unsigned x, y, b; - unsigned ilinebits = bpp * passw[i]; - unsigned olinebits = bpp * w; - size_t obp, ibp; /*bit pointers (for out and in buffer)*/ - for(y = 0; y < passh[i]; ++y) - for(x = 0; x < passw[i]; ++x) { - ibp = (8 * passstart[i]) + (y * ilinebits + x * bpp); - obp = (ADAM7_IY[i] + y * ADAM7_DY[i]) * olinebits + (ADAM7_IX[i] + x * ADAM7_DX[i]) * bpp; - for(b = 0; b < bpp; ++b) { - unsigned char bit = readBitFromReversedStream(&ibp, in); - /*note that this function assumes the out buffer is completely 0, use setBitOfReversedStream otherwise*/ - setBitOfReversedStream0(&obp, out, bit); - } - } - } - } -} - -static void removePaddingBits(unsigned char* out, const unsigned char* in, - size_t olinebits, size_t ilinebits, unsigned h) { - /* - After filtering there are still padding bits if scanlines have non multiple of 8 bit amounts. They need - to be removed (except at last scanline of (Adam7-reduced) image) before working with pure image buffers - for the Adam7 code, the color convert code and the output to the user. - in and out are allowed to be the same buffer, in may also be higher but still overlapping; in must - have >= ilinebits*h bits, out must have >= olinebits*h bits, olinebits must be <= ilinebits - also used to move bits after earlier such operations happened, e.g. in a sequence of reduced images from Adam7 - only useful if (ilinebits - olinebits) is a value in the range 1..7 - */ - unsigned y; - size_t diff = ilinebits - olinebits; - size_t ibp = 0, obp = 0; /*input and output bit pointers*/ - for(y = 0; y < h; ++y) { - size_t x; - for(x = 0; x < olinebits; ++x) { - unsigned char bit = readBitFromReversedStream(&ibp, in); - setBitOfReversedStream(&obp, out, bit); - } - ibp += diff; - } -} - -/*out must be buffer big enough to contain full image, and in must contain the full decompressed data from -the IDAT chunks (with filter index bytes and possible padding bits) -return value is error*/ -static unsigned postProcessScanlines(unsigned char* out, unsigned char* in, - unsigned w, unsigned h, const LodePNGInfo* info_png) { - /* - This function converts the filtered-padded-interlaced data into pure 2D image buffer with the PNG's colortype. - Steps: - *) if no Adam7: 1) unfilter 2) remove padding bits (= posible extra bits per scanline if bpp < 8) - *) if adam7: 1) 7x unfilter 2) 7x remove padding bits 3) Adam7_deinterlace - NOTE: the in buffer will be overwritten with intermediate data! - */ - unsigned bpp = lodepng_get_bpp(&info_png->color); - if(bpp == 0) return 31; /*error: invalid colortype*/ - - if(info_png->interlace_method == 0) { - if(bpp < 8 && w * bpp != ((w * bpp + 7) / 8) * 8) { - CERROR_TRY_RETURN(unfilter(in, in, w, h, bpp)); - removePaddingBits(out, in, w * bpp, ((w * bpp + 7) / 8) * 8, h); - } - /*we can immediately filter into the out buffer, no other steps needed*/ - else CERROR_TRY_RETURN(unfilter(out, in, w, h, bpp)); - } else /*interlace_method is 1 (Adam7)*/ { - unsigned passw[7], passh[7]; size_t filter_passstart[8], padded_passstart[8], passstart[8]; - unsigned i; - - Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp); - - for(i = 0; i != 7; ++i) { - CERROR_TRY_RETURN(unfilter(&in[padded_passstart[i]], &in[filter_passstart[i]], passw[i], passh[i], bpp)); - /*TODO: possible efficiency improvement: if in this reduced image the bits fit nicely in 1 scanline, - move bytes instead of bits or move not at all*/ - if(bpp < 8) { - /*remove padding bits in scanlines; after this there still may be padding - bits between the different reduced images: each reduced image still starts nicely at a byte*/ - removePaddingBits(&in[passstart[i]], &in[padded_passstart[i]], passw[i] * bpp, - ((passw[i] * bpp + 7) / 8) * 8, passh[i]); - } - } - - Adam7_deinterlace(out, in, w, h, bpp); - } - - return 0; -} - -static unsigned readChunk_PLTE(LodePNGColorMode* color, const unsigned char* data, size_t chunkLength) { - unsigned pos = 0, i; - if(color->palette) lodepng_free(color->palette); - color->palettesize = chunkLength / 3; - color->palette = (unsigned char*)lodepng_malloc(4 * color->palettesize); - if(!color->palette && color->palettesize) { - color->palettesize = 0; - return 83; /*alloc fail*/ - } - if(color->palettesize > 256) return 38; /*error: palette too big*/ - - for(i = 0; i != color->palettesize; ++i) { - color->palette[4 * i + 0] = data[pos++]; /*R*/ - color->palette[4 * i + 1] = data[pos++]; /*G*/ - color->palette[4 * i + 2] = data[pos++]; /*B*/ - color->palette[4 * i + 3] = 255; /*alpha*/ - } - - return 0; /* OK */ -} - -static unsigned readChunk_tRNS(LodePNGColorMode* color, const unsigned char* data, size_t chunkLength) { - unsigned i; - if(color->colortype == LCT_PALETTE) { - /*error: more alpha values given than there are palette entries*/ - if(chunkLength > color->palettesize) return 39; - - for(i = 0; i != chunkLength; ++i) color->palette[4 * i + 3] = data[i]; - } else if(color->colortype == LCT_GREY) { - /*error: this chunk must be 2 bytes for grayscale image*/ - if(chunkLength != 2) return 30; - - color->key_defined = 1; - color->key_r = color->key_g = color->key_b = 256u * data[0] + data[1]; - } else if(color->colortype == LCT_RGB) { - /*error: this chunk must be 6 bytes for RGB image*/ - if(chunkLength != 6) return 41; - - color->key_defined = 1; - color->key_r = 256u * data[0] + data[1]; - color->key_g = 256u * data[2] + data[3]; - color->key_b = 256u * data[4] + data[5]; - } - else return 42; /*error: tRNS chunk not allowed for other color models*/ - - return 0; /* OK */ -} - - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS -/*background color chunk (bKGD)*/ -static unsigned readChunk_bKGD(LodePNGInfo* info, const unsigned char* data, size_t chunkLength) { - if(info->color.colortype == LCT_PALETTE) { - /*error: this chunk must be 1 byte for indexed color image*/ - if(chunkLength != 1) return 43; - - /*error: invalid palette index, or maybe this chunk appeared before PLTE*/ - if(data[0] >= info->color.palettesize) return 103; - - info->background_defined = 1; - info->background_r = info->background_g = info->background_b = data[0]; - } else if(info->color.colortype == LCT_GREY || info->color.colortype == LCT_GREY_ALPHA) { - /*error: this chunk must be 2 bytes for grayscale image*/ - if(chunkLength != 2) return 44; - - /*the values are truncated to bitdepth in the PNG file*/ - info->background_defined = 1; - info->background_r = info->background_g = info->background_b = 256u * data[0] + data[1]; - } else if(info->color.colortype == LCT_RGB || info->color.colortype == LCT_RGBA) { - /*error: this chunk must be 6 bytes for grayscale image*/ - if(chunkLength != 6) return 45; - - /*the values are truncated to bitdepth in the PNG file*/ - info->background_defined = 1; - info->background_r = 256u * data[0] + data[1]; - info->background_g = 256u * data[2] + data[3]; - info->background_b = 256u * data[4] + data[5]; - } - - return 0; /* OK */ -} - -/*text chunk (tEXt)*/ -static unsigned readChunk_tEXt(LodePNGInfo* info, const unsigned char* data, size_t chunkLength) { - unsigned error = 0; - char *key = 0, *str = 0; - unsigned i; - - while(!error) /*not really a while loop, only used to break on error*/ { - unsigned length, string2_begin; - - length = 0; - while(length < chunkLength && data[length] != 0) ++length; - /*even though it's not allowed by the standard, no error is thrown if - there's no null termination char, if the text is empty*/ - if(length < 1 || length > 79) CERROR_BREAK(error, 89); /*keyword too short or long*/ - - key = (char*)lodepng_malloc(length + 1); - if(!key) CERROR_BREAK(error, 83); /*alloc fail*/ - - key[length] = 0; - for(i = 0; i != length; ++i) key[i] = (char)data[i]; - - string2_begin = length + 1; /*skip keyword null terminator*/ - - length = (unsigned)(chunkLength < string2_begin ? 0 : chunkLength - string2_begin); - str = (char*)lodepng_malloc(length + 1); - if(!str) CERROR_BREAK(error, 83); /*alloc fail*/ - - str[length] = 0; - for(i = 0; i != length; ++i) str[i] = (char)data[string2_begin + i]; - - error = lodepng_add_text(info, key, str); - - break; - } - - lodepng_free(key); - lodepng_free(str); - - return error; -} - -/*compressed text chunk (zTXt)*/ -static unsigned readChunk_zTXt(LodePNGInfo* info, const LodePNGDecompressSettings* zlibsettings, - const unsigned char* data, size_t chunkLength) { - unsigned error = 0; - unsigned i; - - unsigned length, string2_begin; - char *key = 0; - ucvector decoded; - - ucvector_init(&decoded); - - while(!error) /*not really a while loop, only used to break on error*/ { - for(length = 0; length < chunkLength && data[length] != 0; ++length) ; - if(length + 2 >= chunkLength) CERROR_BREAK(error, 75); /*no null termination, corrupt?*/ - if(length < 1 || length > 79) CERROR_BREAK(error, 89); /*keyword too short or long*/ - - key = (char*)lodepng_malloc(length + 1); - if(!key) CERROR_BREAK(error, 83); /*alloc fail*/ - - key[length] = 0; - for(i = 0; i != length; ++i) key[i] = (char)data[i]; - - if(data[length + 1] != 0) CERROR_BREAK(error, 72); /*the 0 byte indicating compression must be 0*/ - - string2_begin = length + 2; - if(string2_begin > chunkLength) CERROR_BREAK(error, 75); /*no null termination, corrupt?*/ - - length = (unsigned)chunkLength - string2_begin; - /*will fail if zlib error, e.g. if length is too small*/ - error = zlib_decompress(&decoded.data, &decoded.size, - (unsigned char*)(&data[string2_begin]), - length, zlibsettings); - if(error) break; - ucvector_push_back(&decoded, 0); - - error = lodepng_add_text(info, key, (char*)decoded.data); - - break; - } - - lodepng_free(key); - ucvector_cleanup(&decoded); - - return error; -} - -/*international text chunk (iTXt)*/ -static unsigned readChunk_iTXt(LodePNGInfo* info, const LodePNGDecompressSettings* zlibsettings, - const unsigned char* data, size_t chunkLength) { - unsigned error = 0; - unsigned i; - - unsigned length, begin, compressed; - char *key = 0, *langtag = 0, *transkey = 0; - ucvector decoded; - ucvector_init(&decoded); /* TODO: only use in case of compressed text */ - - while(!error) /*not really a while loop, only used to break on error*/ { - /*Quick check if the chunk length isn't too small. Even without check - it'd still fail with other error checks below if it's too short. This just gives a different error code.*/ - if(chunkLength < 5) CERROR_BREAK(error, 30); /*iTXt chunk too short*/ - - /*read the key*/ - for(length = 0; length < chunkLength && data[length] != 0; ++length) ; - if(length + 3 >= chunkLength) CERROR_BREAK(error, 75); /*no null termination char, corrupt?*/ - if(length < 1 || length > 79) CERROR_BREAK(error, 89); /*keyword too short or long*/ - - key = (char*)lodepng_malloc(length + 1); - if(!key) CERROR_BREAK(error, 83); /*alloc fail*/ - - key[length] = 0; - for(i = 0; i != length; ++i) key[i] = (char)data[i]; - - /*read the compression method*/ - compressed = data[length + 1]; - if(data[length + 2] != 0) CERROR_BREAK(error, 72); /*the 0 byte indicating compression must be 0*/ - - /*even though it's not allowed by the standard, no error is thrown if - there's no null termination char, if the text is empty for the next 3 texts*/ - - /*read the langtag*/ - begin = length + 3; - length = 0; - for(i = begin; i < chunkLength && data[i] != 0; ++i) ++length; - - langtag = (char*)lodepng_malloc(length + 1); - if(!langtag) CERROR_BREAK(error, 83); /*alloc fail*/ - - langtag[length] = 0; - for(i = 0; i != length; ++i) langtag[i] = (char)data[begin + i]; - - /*read the transkey*/ - begin += length + 1; - length = 0; - for(i = begin; i < chunkLength && data[i] != 0; ++i) ++length; - - transkey = (char*)lodepng_malloc(length + 1); - if(!transkey) CERROR_BREAK(error, 83); /*alloc fail*/ - - transkey[length] = 0; - for(i = 0; i != length; ++i) transkey[i] = (char)data[begin + i]; - - /*read the actual text*/ - begin += length + 1; - - length = (unsigned)chunkLength < begin ? 0 : (unsigned)chunkLength - begin; - - if(compressed) { - /*will fail if zlib error, e.g. if length is too small*/ - error = zlib_decompress(&decoded.data, &decoded.size, - (unsigned char*)(&data[begin]), - length, zlibsettings); - if(error) break; - if(decoded.allocsize < decoded.size) decoded.allocsize = decoded.size; - ucvector_push_back(&decoded, 0); - } else { - if(!ucvector_resize(&decoded, length + 1)) CERROR_BREAK(error, 83 /*alloc fail*/); - - decoded.data[length] = 0; - for(i = 0; i != length; ++i) decoded.data[i] = data[begin + i]; - } - - error = lodepng_add_itext(info, key, langtag, transkey, (char*)decoded.data); - - break; - } - - lodepng_free(key); - lodepng_free(langtag); - lodepng_free(transkey); - ucvector_cleanup(&decoded); - - return error; -} - -static unsigned readChunk_tIME(LodePNGInfo* info, const unsigned char* data, size_t chunkLength) { - if(chunkLength != 7) return 73; /*invalid tIME chunk size*/ - - info->time_defined = 1; - info->time.year = 256u * data[0] + data[1]; - info->time.month = data[2]; - info->time.day = data[3]; - info->time.hour = data[4]; - info->time.minute = data[5]; - info->time.second = data[6]; - - return 0; /* OK */ -} - -static unsigned readChunk_pHYs(LodePNGInfo* info, const unsigned char* data, size_t chunkLength) { - if(chunkLength != 9) return 74; /*invalid pHYs chunk size*/ - - info->phys_defined = 1; - info->phys_x = 16777216u * data[0] + 65536u * data[1] + 256u * data[2] + data[3]; - info->phys_y = 16777216u * data[4] + 65536u * data[5] + 256u * data[6] + data[7]; - info->phys_unit = data[8]; - - return 0; /* OK */ -} - -static unsigned readChunk_gAMA(LodePNGInfo* info, const unsigned char* data, size_t chunkLength) { - if(chunkLength != 4) return 96; /*invalid gAMA chunk size*/ - - info->gama_defined = 1; - info->gama_gamma = 16777216u * data[0] + 65536u * data[1] + 256u * data[2] + data[3]; - - return 0; /* OK */ -} - -static unsigned readChunk_cHRM(LodePNGInfo* info, const unsigned char* data, size_t chunkLength) { - if(chunkLength != 32) return 97; /*invalid cHRM chunk size*/ - - info->chrm_defined = 1; - info->chrm_white_x = 16777216u * data[ 0] + 65536u * data[ 1] + 256u * data[ 2] + data[ 3]; - info->chrm_white_y = 16777216u * data[ 4] + 65536u * data[ 5] + 256u * data[ 6] + data[ 7]; - info->chrm_red_x = 16777216u * data[ 8] + 65536u * data[ 9] + 256u * data[10] + data[11]; - info->chrm_red_y = 16777216u * data[12] + 65536u * data[13] + 256u * data[14] + data[15]; - info->chrm_green_x = 16777216u * data[16] + 65536u * data[17] + 256u * data[18] + data[19]; - info->chrm_green_y = 16777216u * data[20] + 65536u * data[21] + 256u * data[22] + data[23]; - info->chrm_blue_x = 16777216u * data[24] + 65536u * data[25] + 256u * data[26] + data[27]; - info->chrm_blue_y = 16777216u * data[28] + 65536u * data[29] + 256u * data[30] + data[31]; - - return 0; /* OK */ -} - -static unsigned readChunk_sRGB(LodePNGInfo* info, const unsigned char* data, size_t chunkLength) { - if(chunkLength != 1) return 98; /*invalid sRGB chunk size (this one is never ignored)*/ - - info->srgb_defined = 1; - info->srgb_intent = data[0]; - - return 0; /* OK */ -} - -static unsigned readChunk_iCCP(LodePNGInfo* info, const LodePNGDecompressSettings* zlibsettings, - const unsigned char* data, size_t chunkLength) { - unsigned error = 0; - unsigned i; - - unsigned length, string2_begin; - ucvector decoded; - - info->iccp_defined = 1; - if(info->iccp_name) lodepng_clear_icc(info); - - for(length = 0; length < chunkLength && data[length] != 0; ++length) ; - if(length + 2 >= chunkLength) return 75; /*no null termination, corrupt?*/ - if(length < 1 || length > 79) return 89; /*keyword too short or long*/ - - info->iccp_name = (char*)lodepng_malloc(length + 1); - if(!info->iccp_name) return 83; /*alloc fail*/ - - info->iccp_name[length] = 0; - for(i = 0; i != length; ++i) info->iccp_name[i] = (char)data[i]; - - if(data[length + 1] != 0) return 72; /*the 0 byte indicating compression must be 0*/ - - string2_begin = length + 2; - if(string2_begin > chunkLength) return 75; /*no null termination, corrupt?*/ - - length = (unsigned)chunkLength - string2_begin; - ucvector_init(&decoded); - error = zlib_decompress(&decoded.data, &decoded.size, - (unsigned char*)(&data[string2_begin]), - length, zlibsettings); - if(!error) { - info->iccp_profile_size = (unsigned int)decoded.size; - info->iccp_profile = (unsigned char*)lodepng_malloc(decoded.size); - if(info->iccp_profile) { - memcpy(info->iccp_profile, decoded.data, decoded.size); - } else { - error = 83; /* alloc fail */ - } - } - ucvector_cleanup(&decoded); - return error; -} -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -unsigned lodepng_inspect_chunk(LodePNGState* state, size_t pos, - const unsigned char* in, size_t insize) { - const unsigned char* chunk = in + pos; - unsigned chunkLength; - const unsigned char* data; - unsigned unhandled = 0; - unsigned error = 0; - - if (pos + 4 > insize) return 30; - chunkLength = lodepng_chunk_length(chunk); - if(chunkLength > 2147483647) return 63; - data = lodepng_chunk_data_const(chunk); - if(data + chunkLength + 4 > in + insize) return 30; - - if(lodepng_chunk_type_equals(chunk, "PLTE")) { - error = readChunk_PLTE(&state->info_png.color, data, chunkLength); - } else if(lodepng_chunk_type_equals(chunk, "tRNS")) { - error = readChunk_tRNS(&state->info_png.color, data, chunkLength); -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - } else if(lodepng_chunk_type_equals(chunk, "bKGD")) { - error = readChunk_bKGD(&state->info_png, data, chunkLength); - } else if(lodepng_chunk_type_equals(chunk, "tEXt")) { - error = readChunk_tEXt(&state->info_png, data, chunkLength); - } else if(lodepng_chunk_type_equals(chunk, "zTXt")) { - error = readChunk_zTXt(&state->info_png, &state->decoder.zlibsettings, data, chunkLength); - } else if(lodepng_chunk_type_equals(chunk, "iTXt")) { - error = readChunk_iTXt(&state->info_png, &state->decoder.zlibsettings, data, chunkLength); - } else if(lodepng_chunk_type_equals(chunk, "tIME")) { - error = readChunk_tIME(&state->info_png, data, chunkLength); - } else if(lodepng_chunk_type_equals(chunk, "pHYs")) { - error = readChunk_pHYs(&state->info_png, data, chunkLength); - } else if(lodepng_chunk_type_equals(chunk, "gAMA")) { - error = readChunk_gAMA(&state->info_png, data, chunkLength); - } else if(lodepng_chunk_type_equals(chunk, "cHRM")) { - error = readChunk_cHRM(&state->info_png, data, chunkLength); - } else if(lodepng_chunk_type_equals(chunk, "sRGB")) { - error = readChunk_sRGB(&state->info_png, data, chunkLength); - } else if(lodepng_chunk_type_equals(chunk, "iCCP")) { - error = readChunk_iCCP(&state->info_png, &state->decoder.zlibsettings, data, chunkLength); -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - } else { - /* unhandled chunk is ok (is not an error) */ - unhandled = 1; - } - - if(!error && !unhandled && !state->decoder.ignore_crc) { - if(lodepng_chunk_check_crc(chunk)) return 57; /*invalid CRC*/ - } - - return error; -} - -/*read a PNG, the result will be in the same color type as the PNG (hence "generic")*/ -static void decodeGeneric(unsigned char** out, unsigned* w, unsigned* h, - LodePNGState* state, - const unsigned char* in, size_t insize) { - unsigned char IEND = 0; - const unsigned char* chunk; - size_t i; - ucvector idat; /*the data from idat chunks*/ - ucvector scanlines; - size_t predict; - size_t outsize = 0; - - /*for unknown chunk order*/ - unsigned unknown = 0; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - unsigned critical_pos = 1; /*1 = after IHDR, 2 = after PLTE, 3 = after IDAT*/ -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - - - /* safe output values in case error happens */ - *out = 0; - *w = *h = 0; - - state->error = lodepng_inspect(w, h, state, in, insize); /*reads header and resets other parameters in state->info_png*/ - if(state->error) return; - - if(lodepng_pixel_overflow(*w, *h, &state->info_png.color, &state->info_raw)) { - CERROR_RETURN(state->error, 92); /*overflow possible due to amount of pixels*/ - } - - ucvector_init(&idat); - chunk = &in[33]; /*first byte of the first chunk after the header*/ - - /*loop through the chunks, ignoring unknown chunks and stopping at IEND chunk. - IDAT data is put at the start of the in buffer*/ - while(!IEND && !state->error) { - unsigned chunkLength; - const unsigned char* data; /*the data in the chunk*/ - - /*error: size of the in buffer too small to contain next chunk*/ - if((size_t)((chunk - in) + 12) > insize || chunk < in) { - if(state->decoder.ignore_end) break; /*other errors may still happen though*/ - CERROR_BREAK(state->error, 30); - } - - /*length of the data of the chunk, excluding the length bytes, chunk type and CRC bytes*/ - chunkLength = lodepng_chunk_length(chunk); - /*error: chunk length larger than the max PNG chunk size*/ - if(chunkLength > 2147483647) { - if(state->decoder.ignore_end) break; /*other errors may still happen though*/ - CERROR_BREAK(state->error, 63); - } - - if((size_t)((chunk - in) + chunkLength + 12) > insize || (chunk + chunkLength + 12) < in) { - CERROR_BREAK(state->error, 64); /*error: size of the in buffer too small to contain next chunk*/ - } - - data = lodepng_chunk_data_const(chunk); - - unknown = 0; - - /*IDAT chunk, containing compressed image data*/ - if(lodepng_chunk_type_equals(chunk, "IDAT")) { - size_t oldsize = idat.size; - size_t newsize; - if(lodepng_addofl(oldsize, chunkLength, &newsize)) CERROR_BREAK(state->error, 95); - if(!ucvector_resize(&idat, newsize)) CERROR_BREAK(state->error, 83 /*alloc fail*/); - for(i = 0; i != chunkLength; ++i) idat.data[oldsize + i] = data[i]; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - critical_pos = 3; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - } else if(lodepng_chunk_type_equals(chunk, "IEND")) { - /*IEND chunk*/ - IEND = 1; - } else if(lodepng_chunk_type_equals(chunk, "PLTE")) { - /*palette chunk (PLTE)*/ - state->error = readChunk_PLTE(&state->info_png.color, data, chunkLength); - if(state->error) break; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - critical_pos = 2; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - } else if(lodepng_chunk_type_equals(chunk, "tRNS")) { - /*palette transparency chunk (tRNS). Even though this one is an ancillary chunk , it is still compiled - in without 'LODEPNG_COMPILE_ANCILLARY_CHUNKS' because it contains essential color information that - affects the alpha channel of pixels. */ - state->error = readChunk_tRNS(&state->info_png.color, data, chunkLength); - if(state->error) break; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - /*background color chunk (bKGD)*/ - } else if(lodepng_chunk_type_equals(chunk, "bKGD")) { - state->error = readChunk_bKGD(&state->info_png, data, chunkLength); - if(state->error) break; - } else if(lodepng_chunk_type_equals(chunk, "tEXt")) { - /*text chunk (tEXt)*/ - if(state->decoder.read_text_chunks) { - state->error = readChunk_tEXt(&state->info_png, data, chunkLength); - if(state->error) break; - } - } else if(lodepng_chunk_type_equals(chunk, "zTXt")) { - /*compressed text chunk (zTXt)*/ - if(state->decoder.read_text_chunks) { - state->error = readChunk_zTXt(&state->info_png, &state->decoder.zlibsettings, data, chunkLength); - if(state->error) break; - } - } else if(lodepng_chunk_type_equals(chunk, "iTXt")) { - /*international text chunk (iTXt)*/ - if(state->decoder.read_text_chunks) { - state->error = readChunk_iTXt(&state->info_png, &state->decoder.zlibsettings, data, chunkLength); - if(state->error) break; - } - } else if(lodepng_chunk_type_equals(chunk, "tIME")) { - state->error = readChunk_tIME(&state->info_png, data, chunkLength); - if(state->error) break; - } else if(lodepng_chunk_type_equals(chunk, "pHYs")) { - state->error = readChunk_pHYs(&state->info_png, data, chunkLength); - if(state->error) break; - } else if(lodepng_chunk_type_equals(chunk, "gAMA")) { - state->error = readChunk_gAMA(&state->info_png, data, chunkLength); - if(state->error) break; - } else if(lodepng_chunk_type_equals(chunk, "cHRM")) { - state->error = readChunk_cHRM(&state->info_png, data, chunkLength); - if(state->error) break; - } else if(lodepng_chunk_type_equals(chunk, "sRGB")) { - state->error = readChunk_sRGB(&state->info_png, data, chunkLength); - if(state->error) break; - } else if(lodepng_chunk_type_equals(chunk, "iCCP")) { - state->error = readChunk_iCCP(&state->info_png, &state->decoder.zlibsettings, data, chunkLength); - if(state->error) break; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - } else /*it's not an implemented chunk type, so ignore it: skip over the data*/ { - /*error: unknown critical chunk (5th bit of first byte of chunk type is 0)*/ - if(!state->decoder.ignore_critical && !lodepng_chunk_ancillary(chunk)) { - CERROR_BREAK(state->error, 69); - } - - unknown = 1; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - if(state->decoder.remember_unknown_chunks) { - state->error = lodepng_chunk_append(&state->info_png.unknown_chunks_data[critical_pos - 1], - &state->info_png.unknown_chunks_size[critical_pos - 1], chunk); - if(state->error) break; - } -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - } - - if(!state->decoder.ignore_crc && !unknown) /*check CRC if wanted, only on known chunk types*/ { - if(lodepng_chunk_check_crc(chunk)) CERROR_BREAK(state->error, 57); /*invalid CRC*/ - } - - if(!IEND) chunk = lodepng_chunk_next_const(chunk); - } - - ucvector_init(&scanlines); - /*predict output size, to allocate exact size for output buffer to avoid more dynamic allocation. - If the decompressed size does not match the prediction, the image must be corrupt.*/ - if(state->info_png.interlace_method == 0) { - predict = lodepng_get_raw_size_idat(*w, *h, &state->info_png.color); - } else { - /*Adam-7 interlaced: predicted size is the sum of the 7 sub-images sizes*/ - const LodePNGColorMode* color = &state->info_png.color; - predict = 0; - predict += lodepng_get_raw_size_idat((*w + 7) >> 3, (*h + 7) >> 3, color); - if(*w > 4) predict += lodepng_get_raw_size_idat((*w + 3) >> 3, (*h + 7) >> 3, color); - predict += lodepng_get_raw_size_idat((*w + 3) >> 2, (*h + 3) >> 3, color); - if(*w > 2) predict += lodepng_get_raw_size_idat((*w + 1) >> 2, (*h + 3) >> 2, color); - predict += lodepng_get_raw_size_idat((*w + 1) >> 1, (*h + 1) >> 2, color); - if(*w > 1) predict += lodepng_get_raw_size_idat((*w + 0) >> 1, (*h + 1) >> 1, color); - predict += lodepng_get_raw_size_idat((*w + 0), (*h + 0) >> 1, color); - } - if(!state->error && !ucvector_reserve(&scanlines, predict)) state->error = 83; /*alloc fail*/ - if(!state->error) { - state->error = zlib_decompress(&scanlines.data, &scanlines.size, idat.data, - idat.size, &state->decoder.zlibsettings); - if(!state->error && scanlines.size != predict) state->error = 91; /*decompressed size doesn't match prediction*/ - } - ucvector_cleanup(&idat); - - if(!state->error) { - outsize = lodepng_get_raw_size(*w, *h, &state->info_png.color); - *out = (unsigned char*)lodepng_malloc(outsize); - if(!*out) state->error = 83; /*alloc fail*/ - } - if(!state->error) { - for(i = 0; i < outsize; i++) (*out)[i] = 0; - state->error = postProcessScanlines(*out, scanlines.data, *w, *h, &state->info_png); - } - ucvector_cleanup(&scanlines); -} - -unsigned lodepng_decode(unsigned char** out, unsigned* w, unsigned* h, - LodePNGState* state, - const unsigned char* in, size_t insize) { - *out = 0; - decodeGeneric(out, w, h, state, in, insize); - if(state->error) return state->error; - if(!state->decoder.color_convert || lodepng_color_mode_equal(&state->info_raw, &state->info_png.color)) { - /*same color type, no copying or converting of data needed*/ - /*store the info_png color settings on the info_raw so that the info_raw still reflects what colortype - the raw image has to the end user*/ - if(!state->decoder.color_convert) { - state->error = lodepng_color_mode_copy(&state->info_raw, &state->info_png.color); - if(state->error) return state->error; - } - } else { - /*color conversion needed; sort of copy of the data*/ - unsigned char* data = *out; - size_t outsize; - - /*TODO: check if this works according to the statement in the documentation: "The converter can convert - from grayscale input color type, to 8-bit grayscale or grayscale with alpha"*/ - if(!(state->info_raw.colortype == LCT_RGB || state->info_raw.colortype == LCT_RGBA) - && !(state->info_raw.bitdepth == 8)) { - return 56; /*unsupported color mode conversion*/ - } - - outsize = lodepng_get_raw_size(*w, *h, &state->info_raw); - *out = (unsigned char*)lodepng_malloc(outsize); - if(!(*out)) { - state->error = 83; /*alloc fail*/ - } - else state->error = lodepng_convert(*out, data, &state->info_raw, - &state->info_png.color, *w, *h); - lodepng_free(data); - } - return state->error; -} - -unsigned lodepng_decode_memory(unsigned char** out, unsigned* w, unsigned* h, const unsigned char* in, - size_t insize, LodePNGColorType colortype, unsigned bitdepth) { - unsigned error; - LodePNGState state; - lodepng_state_init(&state); - state.info_raw.colortype = colortype; - state.info_raw.bitdepth = bitdepth; - error = lodepng_decode(out, w, h, &state, in, insize); - lodepng_state_cleanup(&state); - return error; -} - -unsigned lodepng_decode32(unsigned char** out, unsigned* w, unsigned* h, const unsigned char* in, size_t insize) { - return lodepng_decode_memory(out, w, h, in, insize, LCT_RGBA, 8); -} - -unsigned lodepng_decode24(unsigned char** out, unsigned* w, unsigned* h, const unsigned char* in, size_t insize) { - return lodepng_decode_memory(out, w, h, in, insize, LCT_RGB, 8); -} - -#ifdef LODEPNG_COMPILE_DISK -unsigned lodepng_decode_file(unsigned char** out, unsigned* w, unsigned* h, const char* filename, - LodePNGColorType colortype, unsigned bitdepth) { - unsigned char* buffer = 0; - size_t buffersize; - unsigned error; - /* safe output values in case error happens */ - *out = 0; - *w = *h = 0; - error = lodepng_load_file(&buffer, &buffersize, filename); - if(!error) error = lodepng_decode_memory(out, w, h, buffer, buffersize, colortype, bitdepth); - lodepng_free(buffer); - return error; -} - -unsigned lodepng_decode32_file(unsigned char** out, unsigned* w, unsigned* h, const char* filename) { - return lodepng_decode_file(out, w, h, filename, LCT_RGBA, 8); -} - -unsigned lodepng_decode24_file(unsigned char** out, unsigned* w, unsigned* h, const char* filename) { - return lodepng_decode_file(out, w, h, filename, LCT_RGB, 8); -} -#endif /*LODEPNG_COMPILE_DISK*/ - -void lodepng_decoder_settings_init(LodePNGDecoderSettings* settings) { - settings->color_convert = 1; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - settings->read_text_chunks = 1; - settings->remember_unknown_chunks = 0; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - settings->ignore_crc = 0; - settings->ignore_critical = 0; - settings->ignore_end = 0; - lodepng_decompress_settings_init(&settings->zlibsettings); -} - -#endif /*LODEPNG_COMPILE_DECODER*/ - -#if defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER) - -void lodepng_state_init(LodePNGState* state) { -#ifdef LODEPNG_COMPILE_DECODER - lodepng_decoder_settings_init(&state->decoder); -#endif /*LODEPNG_COMPILE_DECODER*/ -#ifdef LODEPNG_COMPILE_ENCODER - lodepng_encoder_settings_init(&state->encoder); -#endif /*LODEPNG_COMPILE_ENCODER*/ - lodepng_color_mode_init(&state->info_raw); - lodepng_info_init(&state->info_png); - state->error = 1; -} - -void lodepng_state_cleanup(LodePNGState* state) { - lodepng_color_mode_cleanup(&state->info_raw); - lodepng_info_cleanup(&state->info_png); -} - -void lodepng_state_copy(LodePNGState* dest, const LodePNGState* source) { - lodepng_state_cleanup(dest); - *dest = *source; - lodepng_color_mode_init(&dest->info_raw); - lodepng_info_init(&dest->info_png); - dest->error = lodepng_color_mode_copy(&dest->info_raw, &source->info_raw); if(dest->error) return; - dest->error = lodepng_info_copy(&dest->info_png, &source->info_png); if(dest->error) return; -} - -#endif /* defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER) */ - -#ifdef LODEPNG_COMPILE_ENCODER - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / PNG Encoder / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -/*chunkName must be string of 4 characters*/ -static unsigned addChunk(ucvector* out, const char* chunkName, const unsigned char* data, size_t length) { - CERROR_TRY_RETURN(lodepng_chunk_create(&out->data, &out->size, (unsigned)length, chunkName, data)); - out->allocsize = out->size; /*fix the allocsize again*/ - return 0; -} - -static void writeSignature(ucvector* out) { - /*8 bytes PNG signature, aka the magic bytes*/ - ucvector_push_back(out, 137); - ucvector_push_back(out, 80); - ucvector_push_back(out, 78); - ucvector_push_back(out, 71); - ucvector_push_back(out, 13); - ucvector_push_back(out, 10); - ucvector_push_back(out, 26); - ucvector_push_back(out, 10); -} - -static unsigned addChunk_IHDR(ucvector* out, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth, unsigned interlace_method) { - unsigned error = 0; - ucvector header; - ucvector_init(&header); - - lodepng_add32bitInt(&header, w); /*width*/ - lodepng_add32bitInt(&header, h); /*height*/ - ucvector_push_back(&header, (unsigned char)bitdepth); /*bit depth*/ - ucvector_push_back(&header, (unsigned char)colortype); /*color type*/ - ucvector_push_back(&header, 0); /*compression method*/ - ucvector_push_back(&header, 0); /*filter method*/ - ucvector_push_back(&header, interlace_method); /*interlace method*/ - - error = addChunk(out, "IHDR", header.data, header.size); - ucvector_cleanup(&header); - - return error; -} - -static unsigned addChunk_PLTE(ucvector* out, const LodePNGColorMode* info) { - unsigned error = 0; - size_t i; - ucvector PLTE; - ucvector_init(&PLTE); - for(i = 0; i != info->palettesize * 4; ++i) { - /*add all channels except alpha channel*/ - if(i % 4 != 3) ucvector_push_back(&PLTE, info->palette[i]); - } - error = addChunk(out, "PLTE", PLTE.data, PLTE.size); - ucvector_cleanup(&PLTE); - - return error; -} - -static unsigned addChunk_tRNS(ucvector* out, const LodePNGColorMode* info) { - unsigned error = 0; - size_t i; - ucvector tRNS; - ucvector_init(&tRNS); - if(info->colortype == LCT_PALETTE) { - size_t amount = info->palettesize; - /*the tail of palette values that all have 255 as alpha, does not have to be encoded*/ - for(i = info->palettesize; i != 0; --i) { - if(info->palette[4 * (i - 1) + 3] == 255) --amount; - else break; - } - /*add only alpha channel*/ - for(i = 0; i != amount; ++i) ucvector_push_back(&tRNS, info->palette[4 * i + 3]); - } else if(info->colortype == LCT_GREY) { - if(info->key_defined) { - ucvector_push_back(&tRNS, (unsigned char)(info->key_r >> 8)); - ucvector_push_back(&tRNS, (unsigned char)(info->key_r & 255)); - } - } else if(info->colortype == LCT_RGB) { - if(info->key_defined) { - ucvector_push_back(&tRNS, (unsigned char)(info->key_r >> 8)); - ucvector_push_back(&tRNS, (unsigned char)(info->key_r & 255)); - ucvector_push_back(&tRNS, (unsigned char)(info->key_g >> 8)); - ucvector_push_back(&tRNS, (unsigned char)(info->key_g & 255)); - ucvector_push_back(&tRNS, (unsigned char)(info->key_b >> 8)); - ucvector_push_back(&tRNS, (unsigned char)(info->key_b & 255)); - } - } - - error = addChunk(out, "tRNS", tRNS.data, tRNS.size); - ucvector_cleanup(&tRNS); - - return error; -} - -static unsigned addChunk_IDAT(ucvector* out, const unsigned char* data, size_t datasize, - LodePNGCompressSettings* zlibsettings) { - ucvector zlibdata; - unsigned error = 0; - - /*compress with the Zlib compressor*/ - ucvector_init(&zlibdata); - error = zlib_compress(&zlibdata.data, &zlibdata.size, data, datasize, zlibsettings); - if(!error) error = addChunk(out, "IDAT", zlibdata.data, zlibdata.size); - ucvector_cleanup(&zlibdata); - - return error; -} - -static unsigned addChunk_IEND(ucvector* out) { - unsigned error = 0; - error = addChunk(out, "IEND", 0, 0); - return error; -} - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - -static unsigned addChunk_tEXt(ucvector* out, const char* keyword, const char* textstring) { - unsigned error = 0; - size_t i; - ucvector text; - ucvector_init(&text); - for(i = 0; keyword[i] != 0; ++i) ucvector_push_back(&text, (unsigned char)keyword[i]); - if(i < 1 || i > 79) return 89; /*error: invalid keyword size*/ - ucvector_push_back(&text, 0); /*0 termination char*/ - for(i = 0; textstring[i] != 0; ++i) ucvector_push_back(&text, (unsigned char)textstring[i]); - error = addChunk(out, "tEXt", text.data, text.size); - ucvector_cleanup(&text); - - return error; -} - -static unsigned addChunk_zTXt(ucvector* out, const char* keyword, const char* textstring, - LodePNGCompressSettings* zlibsettings) { - unsigned error = 0; - ucvector data, compressed; - size_t i, textsize = strlen(textstring); - - ucvector_init(&data); - ucvector_init(&compressed); - for(i = 0; keyword[i] != 0; ++i) ucvector_push_back(&data, (unsigned char)keyword[i]); - if(i < 1 || i > 79) return 89; /*error: invalid keyword size*/ - ucvector_push_back(&data, 0); /*0 termination char*/ - ucvector_push_back(&data, 0); /*compression method: 0*/ - - error = zlib_compress(&compressed.data, &compressed.size, - (unsigned char*)textstring, textsize, zlibsettings); - if(!error) { - for(i = 0; i != compressed.size; ++i) ucvector_push_back(&data, compressed.data[i]); - error = addChunk(out, "zTXt", data.data, data.size); - } - - ucvector_cleanup(&compressed); - ucvector_cleanup(&data); - return error; -} - -static unsigned addChunk_iTXt(ucvector* out, unsigned compressed, const char* keyword, const char* langtag, - const char* transkey, const char* textstring, LodePNGCompressSettings* zlibsettings) { - unsigned error = 0; - ucvector data; - size_t i, textsize = strlen(textstring); - - ucvector_init(&data); - - for(i = 0; keyword[i] != 0; ++i) ucvector_push_back(&data, (unsigned char)keyword[i]); - if(i < 1 || i > 79) return 89; /*error: invalid keyword size*/ - ucvector_push_back(&data, 0); /*null termination char*/ - ucvector_push_back(&data, compressed ? 1 : 0); /*compression flag*/ - ucvector_push_back(&data, 0); /*compression method*/ - for(i = 0; langtag[i] != 0; ++i) ucvector_push_back(&data, (unsigned char)langtag[i]); - ucvector_push_back(&data, 0); /*null termination char*/ - for(i = 0; transkey[i] != 0; ++i) ucvector_push_back(&data, (unsigned char)transkey[i]); - ucvector_push_back(&data, 0); /*null termination char*/ - - if(compressed) { - ucvector compressed_data; - ucvector_init(&compressed_data); - error = zlib_compress(&compressed_data.data, &compressed_data.size, - (unsigned char*)textstring, textsize, zlibsettings); - if(!error) { - for(i = 0; i != compressed_data.size; ++i) ucvector_push_back(&data, compressed_data.data[i]); - } - ucvector_cleanup(&compressed_data); - } else /*not compressed*/ { - for(i = 0; textstring[i] != 0; ++i) ucvector_push_back(&data, (unsigned char)textstring[i]); - } - - if(!error) error = addChunk(out, "iTXt", data.data, data.size); - ucvector_cleanup(&data); - return error; -} - -static unsigned addChunk_bKGD(ucvector* out, const LodePNGInfo* info) { - unsigned error = 0; - ucvector bKGD; - ucvector_init(&bKGD); - if(info->color.colortype == LCT_GREY || info->color.colortype == LCT_GREY_ALPHA) { - ucvector_push_back(&bKGD, (unsigned char)(info->background_r >> 8)); - ucvector_push_back(&bKGD, (unsigned char)(info->background_r & 255)); - } else if(info->color.colortype == LCT_RGB || info->color.colortype == LCT_RGBA) { - ucvector_push_back(&bKGD, (unsigned char)(info->background_r >> 8)); - ucvector_push_back(&bKGD, (unsigned char)(info->background_r & 255)); - ucvector_push_back(&bKGD, (unsigned char)(info->background_g >> 8)); - ucvector_push_back(&bKGD, (unsigned char)(info->background_g & 255)); - ucvector_push_back(&bKGD, (unsigned char)(info->background_b >> 8)); - ucvector_push_back(&bKGD, (unsigned char)(info->background_b & 255)); - } else if(info->color.colortype == LCT_PALETTE) { - ucvector_push_back(&bKGD, (unsigned char)(info->background_r & 255)); /*palette index*/ - } - - error = addChunk(out, "bKGD", bKGD.data, bKGD.size); - ucvector_cleanup(&bKGD); - - return error; -} - -static unsigned addChunk_tIME(ucvector* out, const LodePNGTime* time) { - unsigned error = 0; - unsigned char* data = (unsigned char*)lodepng_malloc(7); - if(!data) return 83; /*alloc fail*/ - data[0] = (unsigned char)(time->year >> 8); - data[1] = (unsigned char)(time->year & 255); - data[2] = (unsigned char)time->month; - data[3] = (unsigned char)time->day; - data[4] = (unsigned char)time->hour; - data[5] = (unsigned char)time->minute; - data[6] = (unsigned char)time->second; - error = addChunk(out, "tIME", data, 7); - lodepng_free(data); - return error; -} - -static unsigned addChunk_pHYs(ucvector* out, const LodePNGInfo* info) { - unsigned error = 0; - ucvector data; - ucvector_init(&data); - - lodepng_add32bitInt(&data, info->phys_x); - lodepng_add32bitInt(&data, info->phys_y); - ucvector_push_back(&data, info->phys_unit); - - error = addChunk(out, "pHYs", data.data, data.size); - ucvector_cleanup(&data); - - return error; -} - -static unsigned addChunk_gAMA(ucvector* out, const LodePNGInfo* info) { - unsigned error = 0; - ucvector data; - ucvector_init(&data); - - lodepng_add32bitInt(&data, info->gama_gamma); - - error = addChunk(out, "gAMA", data.data, data.size); - ucvector_cleanup(&data); - - return error; -} - -static unsigned addChunk_cHRM(ucvector* out, const LodePNGInfo* info) { - unsigned error = 0; - ucvector data; - ucvector_init(&data); - - lodepng_add32bitInt(&data, info->chrm_white_x); - lodepng_add32bitInt(&data, info->chrm_white_y); - lodepng_add32bitInt(&data, info->chrm_red_x); - lodepng_add32bitInt(&data, info->chrm_red_y); - lodepng_add32bitInt(&data, info->chrm_green_x); - lodepng_add32bitInt(&data, info->chrm_green_y); - lodepng_add32bitInt(&data, info->chrm_blue_x); - lodepng_add32bitInt(&data, info->chrm_blue_y); - - error = addChunk(out, "cHRM", data.data, data.size); - ucvector_cleanup(&data); - - return error; -} - -static unsigned addChunk_sRGB(ucvector* out, const LodePNGInfo* info) { - unsigned char data = info->srgb_intent; - return addChunk(out, "sRGB", &data, 1); -} - -static unsigned addChunk_iCCP(ucvector* out, const LodePNGInfo* info, LodePNGCompressSettings* zlibsettings) { - unsigned error = 0; - ucvector data, compressed; - size_t i; - - ucvector_init(&data); - ucvector_init(&compressed); - for(i = 0; info->iccp_name[i] != 0; ++i) ucvector_push_back(&data, (unsigned char)info->iccp_name[i]); - if(i < 1 || i > 79) return 89; /*error: invalid keyword size*/ - ucvector_push_back(&data, 0); /*0 termination char*/ - ucvector_push_back(&data, 0); /*compression method: 0*/ - - error = zlib_compress(&compressed.data, &compressed.size, - info->iccp_profile, info->iccp_profile_size, zlibsettings); - if(!error) { - for(i = 0; i != compressed.size; ++i) ucvector_push_back(&data, compressed.data[i]); - error = addChunk(out, "iCCP", data.data, data.size); - } - - ucvector_cleanup(&compressed); - ucvector_cleanup(&data); - return error; -} - -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -static void filterScanline(unsigned char* out, const unsigned char* scanline, const unsigned char* prevline, - size_t length, size_t bytewidth, unsigned char filterType) { - size_t i; - switch(filterType) { - case 0: /*None*/ - for(i = 0; i != length; ++i) out[i] = scanline[i]; - break; - case 1: /*Sub*/ - for(i = 0; i != bytewidth; ++i) out[i] = scanline[i]; - for(i = bytewidth; i < length; ++i) out[i] = scanline[i] - scanline[i - bytewidth]; - break; - case 2: /*Up*/ - if(prevline) { - for(i = 0; i != length; ++i) out[i] = scanline[i] - prevline[i]; - } else { - for(i = 0; i != length; ++i) out[i] = scanline[i]; - } - break; - case 3: /*Average*/ - if(prevline) { - for(i = 0; i != bytewidth; ++i) out[i] = scanline[i] - (prevline[i] >> 1); - for(i = bytewidth; i < length; ++i) out[i] = scanline[i] - ((scanline[i - bytewidth] + prevline[i]) >> 1); - } else { - for(i = 0; i != bytewidth; ++i) out[i] = scanline[i]; - for(i = bytewidth; i < length; ++i) out[i] = scanline[i] - (scanline[i - bytewidth] >> 1); - } - break; - case 4: /*Paeth*/ - if(prevline) { - /*paethPredictor(0, prevline[i], 0) is always prevline[i]*/ - for(i = 0; i != bytewidth; ++i) out[i] = (scanline[i] - prevline[i]); - for(i = bytewidth; i < length; ++i) { - out[i] = (scanline[i] - paethPredictor(scanline[i - bytewidth], prevline[i], prevline[i - bytewidth])); - } - } else { - for(i = 0; i != bytewidth; ++i) out[i] = scanline[i]; - /*paethPredictor(scanline[i - bytewidth], 0, 0) is always scanline[i - bytewidth]*/ - for(i = bytewidth; i < length; ++i) out[i] = (scanline[i] - scanline[i - bytewidth]); - } - break; - default: return; /*unexisting filter type given*/ - } -} - -/* log2 approximation. A slight bit faster than std::log. */ -static float flog2(float f) { - float result = 0; - while(f > 32) { result += 4; f /= 16; } - while(f > 2) { ++result; f /= 2; } - return result + 1.442695f * (f * f * f / 3 - 3 * f * f / 2 + 3 * f - 1.83333f); -} - -static unsigned filter(unsigned char* out, const unsigned char* in, unsigned w, unsigned h, - const LodePNGColorMode* info, const LodePNGEncoderSettings* settings) { - /* - For PNG filter method 0 - out must be a buffer with as size: h + (w * h * bpp + 7) / 8, because there are - the scanlines with 1 extra byte per scanline - */ - - unsigned bpp = lodepng_get_bpp(info); - /*the width of a scanline in bytes, not including the filter type*/ - size_t linebytes = (w * bpp + 7) / 8; - /*bytewidth is used for filtering, is 1 when bpp < 8, number of bytes per pixel otherwise*/ - size_t bytewidth = (bpp + 7) / 8; - const unsigned char* prevline = 0; - unsigned x, y; - unsigned error = 0; - LodePNGFilterStrategy strategy = settings->filter_strategy; - - /* - There is a heuristic called the minimum sum of absolute differences heuristic, suggested by the PNG standard: - * If the image type is Palette, or the bit depth is smaller than 8, then do not filter the image (i.e. - use fixed filtering, with the filter None). - * (The other case) If the image type is Grayscale or RGB (with or without Alpha), and the bit depth is - not smaller than 8, then use adaptive filtering heuristic as follows: independently for each row, apply - all five filters and select the filter that produces the smallest sum of absolute values per row. - This heuristic is used if filter strategy is LFS_MINSUM and filter_palette_zero is true. - - If filter_palette_zero is true and filter_strategy is not LFS_MINSUM, the above heuristic is followed, - but for "the other case", whatever strategy filter_strategy is set to instead of the minimum sum - heuristic is used. - */ - if(settings->filter_palette_zero && - (info->colortype == LCT_PALETTE || info->bitdepth < 8)) strategy = LFS_ZERO; - - if(bpp == 0) return 31; /*error: invalid color type*/ - - if(strategy == LFS_ZERO) { - for(y = 0; y != h; ++y) { - size_t outindex = (1 + linebytes) * y; /*the extra filterbyte added to each row*/ - size_t inindex = linebytes * y; - out[outindex] = 0; /*filter type byte*/ - filterScanline(&out[outindex + 1], &in[inindex], prevline, linebytes, bytewidth, 0); - prevline = &in[inindex]; - } - } else if(strategy == LFS_MINSUM) { - /*adaptive filtering*/ - size_t sum[5]; - unsigned char* attempt[5]; /*five filtering attempts, one for each filter type*/ - size_t smallest = 0; - unsigned char type, bestType = 0; - - for(type = 0; type != 5; ++type) { - attempt[type] = (unsigned char*)lodepng_malloc(linebytes); - if(!attempt[type]) return 83; /*alloc fail*/ - } - - if(!error) { - for(y = 0; y != h; ++y) { - /*try the 5 filter types*/ - for(type = 0; type != 5; ++type) { - filterScanline(attempt[type], &in[y * linebytes], prevline, linebytes, bytewidth, type); - - /*calculate the sum of the result*/ - sum[type] = 0; - if(type == 0) { - for(x = 0; x != linebytes; ++x) sum[type] += (unsigned char)(attempt[type][x]); - } else { - for(x = 0; x != linebytes; ++x) { - /*For differences, each byte should be treated as signed, values above 127 are negative - (converted to signed char). Filtertype 0 isn't a difference though, so use unsigned there. - This means filtertype 0 is almost never chosen, but that is justified.*/ - unsigned char s = attempt[type][x]; - sum[type] += s < 128 ? s : (255U - s); - } - } - - /*check if this is smallest sum (or if type == 0 it's the first case so always store the values)*/ - if(type == 0 || sum[type] < smallest) { - bestType = type; - smallest = sum[type]; - } - } - - prevline = &in[y * linebytes]; - - /*now fill the out values*/ - out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/ - for(x = 0; x != linebytes; ++x) out[y * (linebytes + 1) + 1 + x] = attempt[bestType][x]; - } - } - - for(type = 0; type != 5; ++type) lodepng_free(attempt[type]); - } else if(strategy == LFS_ENTROPY) { - float sum[5]; - unsigned char* attempt[5]; /*five filtering attempts, one for each filter type*/ - float smallest = 0; - unsigned type, bestType = 0; - unsigned count[256]; - - for(type = 0; type != 5; ++type) { - attempt[type] = (unsigned char*)lodepng_malloc(linebytes); - if(!attempt[type]) return 83; /*alloc fail*/ - } - - for(y = 0; y != h; ++y) { - /*try the 5 filter types*/ - for(type = 0; type != 5; ++type) { - filterScanline(attempt[type], &in[y * linebytes], prevline, linebytes, bytewidth, type); - for(x = 0; x != 256; ++x) count[x] = 0; - for(x = 0; x != linebytes; ++x) ++count[attempt[type][x]]; - ++count[type]; /*the filter type itself is part of the scanline*/ - sum[type] = 0; - for(x = 0; x != 256; ++x) { - float p = count[x] / (float)(linebytes + 1); - sum[type] += count[x] == 0 ? 0 : flog2(1 / p) * p; - } - /*check if this is smallest sum (or if type == 0 it's the first case so always store the values)*/ - if(type == 0 || sum[type] < smallest) { - bestType = type; - smallest = sum[type]; - } - } - - prevline = &in[y * linebytes]; - - /*now fill the out values*/ - out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/ - for(x = 0; x != linebytes; ++x) out[y * (linebytes + 1) + 1 + x] = attempt[bestType][x]; - } - - for(type = 0; type != 5; ++type) lodepng_free(attempt[type]); - } else if(strategy == LFS_PREDEFINED) { - for(y = 0; y != h; ++y) { - size_t outindex = (1 + linebytes) * y; /*the extra filterbyte added to each row*/ - size_t inindex = linebytes * y; - unsigned char type = settings->predefined_filters[y]; - out[outindex] = type; /*filter type byte*/ - filterScanline(&out[outindex + 1], &in[inindex], prevline, linebytes, bytewidth, type); - prevline = &in[inindex]; - } - } else if(strategy == LFS_BRUTE_FORCE) { - /*brute force filter chooser. - deflate the scanline after every filter attempt to see which one deflates best. - This is very slow and gives only slightly smaller, sometimes even larger, result*/ - size_t size[5]; - unsigned char* attempt[5]; /*five filtering attempts, one for each filter type*/ - size_t smallest = 0; - unsigned type = 0, bestType = 0; - unsigned char* dummy; - LodePNGCompressSettings zlibsettings = settings->zlibsettings; - /*use fixed tree on the attempts so that the tree is not adapted to the filtertype on purpose, - to simulate the true case where the tree is the same for the whole image. Sometimes it gives - better result with dynamic tree anyway. Using the fixed tree sometimes gives worse, but in rare - cases better compression. It does make this a bit less slow, so it's worth doing this.*/ - zlibsettings.btype = 1; - /*a custom encoder likely doesn't read the btype setting and is optimized for complete PNG - images only, so disable it*/ - zlibsettings.custom_zlib = 0; - zlibsettings.custom_deflate = 0; - for(type = 0; type != 5; ++type) { - attempt[type] = (unsigned char*)lodepng_malloc(linebytes); - if(!attempt[type]) return 83; /*alloc fail*/ - } - for(y = 0; y != h; ++y) /*try the 5 filter types*/ { - for(type = 0; type != 5; ++type) { - unsigned testsize = (unsigned)linebytes; - /*if(testsize > 8) testsize /= 8;*/ /*it already works good enough by testing a part of the row*/ - - filterScanline(attempt[type], &in[y * linebytes], prevline, linebytes, bytewidth, type); - size[type] = 0; - dummy = 0; - zlib_compress(&dummy, &size[type], attempt[type], testsize, &zlibsettings); - lodepng_free(dummy); - /*check if this is smallest size (or if type == 0 it's the first case so always store the values)*/ - if(type == 0 || size[type] < smallest) { - bestType = type; - smallest = size[type]; - } - } - prevline = &in[y * linebytes]; - out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/ - for(x = 0; x != linebytes; ++x) out[y * (linebytes + 1) + 1 + x] = attempt[bestType][x]; - } - for(type = 0; type != 5; ++type) lodepng_free(attempt[type]); - } - else return 88; /* unknown filter strategy */ - - return error; -} - -static void addPaddingBits(unsigned char* out, const unsigned char* in, - size_t olinebits, size_t ilinebits, unsigned h) { - /*The opposite of the removePaddingBits function - olinebits must be >= ilinebits*/ - unsigned y; - size_t diff = olinebits - ilinebits; - size_t obp = 0, ibp = 0; /*bit pointers*/ - for(y = 0; y != h; ++y) { - size_t x; - for(x = 0; x < ilinebits; ++x) { - unsigned char bit = readBitFromReversedStream(&ibp, in); - setBitOfReversedStream(&obp, out, bit); - } - /*obp += diff; --> no, fill in some value in the padding bits too, to avoid - "Use of uninitialised value of size ###" warning from valgrind*/ - for(x = 0; x != diff; ++x) setBitOfReversedStream(&obp, out, 0); - } -} - -/* -in: non-interlaced image with size w*h -out: the same pixels, but re-ordered according to PNG's Adam7 interlacing, with - no padding bits between scanlines, but between reduced images so that each - reduced image starts at a byte. -bpp: bits per pixel -there are no padding bits, not between scanlines, not between reduced images -in has the following size in bits: w * h * bpp. -out is possibly bigger due to padding bits between reduced images -NOTE: comments about padding bits are only relevant if bpp < 8 -*/ -static void Adam7_interlace(unsigned char* out, const unsigned char* in, unsigned w, unsigned h, unsigned bpp) { - unsigned passw[7], passh[7]; - size_t filter_passstart[8], padded_passstart[8], passstart[8]; - unsigned i; - - Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp); - - if(bpp >= 8) { - for(i = 0; i != 7; ++i) { - unsigned x, y, b; - size_t bytewidth = bpp / 8; - for(y = 0; y < passh[i]; ++y) - for(x = 0; x < passw[i]; ++x) { - size_t pixelinstart = ((ADAM7_IY[i] + y * ADAM7_DY[i]) * w + ADAM7_IX[i] + x * ADAM7_DX[i]) * bytewidth; - size_t pixeloutstart = passstart[i] + (y * passw[i] + x) * bytewidth; - for(b = 0; b < bytewidth; ++b) { - out[pixeloutstart + b] = in[pixelinstart + b]; - } - } - } - } else /*bpp < 8: Adam7 with pixels < 8 bit is a bit trickier: with bit pointers*/ { - for(i = 0; i != 7; ++i) { - unsigned x, y, b; - unsigned ilinebits = bpp * passw[i]; - unsigned olinebits = bpp * w; - size_t obp, ibp; /*bit pointers (for out and in buffer)*/ - for(y = 0; y < passh[i]; ++y) - for(x = 0; x < passw[i]; ++x) { - ibp = (ADAM7_IY[i] + y * ADAM7_DY[i]) * olinebits + (ADAM7_IX[i] + x * ADAM7_DX[i]) * bpp; - obp = (8 * passstart[i]) + (y * ilinebits + x * bpp); - for(b = 0; b < bpp; ++b) { - unsigned char bit = readBitFromReversedStream(&ibp, in); - setBitOfReversedStream(&obp, out, bit); - } - } - } - } -} - -/*out must be buffer big enough to contain uncompressed IDAT chunk data, and in must contain the full image. -return value is error**/ -static unsigned preProcessScanlines(unsigned char** out, size_t* outsize, const unsigned char* in, - unsigned w, unsigned h, - const LodePNGInfo* info_png, const LodePNGEncoderSettings* settings) { - /* - This function converts the pure 2D image with the PNG's colortype, into filtered-padded-interlaced data. Steps: - *) if no Adam7: 1) add padding bits (= posible extra bits per scanline if bpp < 8) 2) filter - *) if adam7: 1) Adam7_interlace 2) 7x add padding bits 3) 7x filter - */ - unsigned bpp = lodepng_get_bpp(&info_png->color); - unsigned error = 0; - - if(info_png->interlace_method == 0) { - *outsize = h + (h * ((w * bpp + 7) / 8)); /*image size plus an extra byte per scanline + possible padding bits*/ - *out = (unsigned char*)lodepng_malloc(*outsize); - if(!(*out) && (*outsize)) error = 83; /*alloc fail*/ - - if(!error) { - /*non multiple of 8 bits per scanline, padding bits needed per scanline*/ - if(bpp < 8 && w * bpp != ((w * bpp + 7) / 8) * 8) { - unsigned char* padded = (unsigned char*)lodepng_malloc(h * ((w * bpp + 7) / 8)); - if(!padded) error = 83; /*alloc fail*/ - if(!error) { - addPaddingBits(padded, in, ((w * bpp + 7) / 8) * 8, w * bpp, h); - error = filter(*out, padded, w, h, &info_png->color, settings); - } - lodepng_free(padded); - } else { - /*we can immediately filter into the out buffer, no other steps needed*/ - error = filter(*out, in, w, h, &info_png->color, settings); - } - } - } else /*interlace_method is 1 (Adam7)*/ { - unsigned passw[7], passh[7]; - size_t filter_passstart[8], padded_passstart[8], passstart[8]; - unsigned char* adam7; - - Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp); - - *outsize = filter_passstart[7]; /*image size plus an extra byte per scanline + possible padding bits*/ - *out = (unsigned char*)lodepng_malloc(*outsize); - if(!(*out)) error = 83; /*alloc fail*/ - - adam7 = (unsigned char*)lodepng_malloc(passstart[7]); - if(!adam7 && passstart[7]) error = 83; /*alloc fail*/ - - if(!error) { - unsigned i; - - Adam7_interlace(adam7, in, w, h, bpp); - for(i = 0; i != 7; ++i) { - if(bpp < 8) { - unsigned char* padded = (unsigned char*)lodepng_malloc(padded_passstart[i + 1] - padded_passstart[i]); - if(!padded) ERROR_BREAK(83); /*alloc fail*/ - addPaddingBits(padded, &adam7[passstart[i]], - ((passw[i] * bpp + 7) / 8) * 8, passw[i] * bpp, passh[i]); - error = filter(&(*out)[filter_passstart[i]], padded, - passw[i], passh[i], &info_png->color, settings); - lodepng_free(padded); - } else { - error = filter(&(*out)[filter_passstart[i]], &adam7[padded_passstart[i]], - passw[i], passh[i], &info_png->color, settings); - } - - if(error) break; - } - } - - lodepng_free(adam7); - } - - return error; -} - -/* -palette must have 4 * palettesize bytes allocated, and given in format RGBARGBARGBARGBA... -returns 0 if the palette is opaque, -returns 1 if the palette has a single color with alpha 0 ==> color key -returns 2 if the palette is semi-translucent. -*/ -static unsigned getPaletteTranslucency(const unsigned char* palette, size_t palettesize) { - size_t i; - unsigned key = 0; - unsigned r = 0, g = 0, b = 0; /*the value of the color with alpha 0, so long as color keying is possible*/ - for(i = 0; i != palettesize; ++i) { - if(!key && palette[4 * i + 3] == 0) { - r = palette[4 * i + 0]; g = palette[4 * i + 1]; b = palette[4 * i + 2]; - key = 1; - i = (size_t)(-1); /*restart from beginning, to detect earlier opaque colors with key's value*/ - } - else if(palette[4 * i + 3] != 255) return 2; - /*when key, no opaque RGB may have key's RGB*/ - else if(key && r == palette[i * 4 + 0] && g == palette[i * 4 + 1] && b == palette[i * 4 + 2]) return 2; - } - return key; -} - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS -static unsigned addUnknownChunks(ucvector* out, unsigned char* data, size_t datasize) { - unsigned char* inchunk = data; - while((size_t)(inchunk - data) < datasize) { - CERROR_TRY_RETURN(lodepng_chunk_append(&out->data, &out->size, inchunk)); - out->allocsize = out->size; /*fix the allocsize again*/ - inchunk = lodepng_chunk_next(inchunk); - } - return 0; -} - -static unsigned isGrayICCProfile(const unsigned char* profile, unsigned size) { - /* - It is a gray profile if bytes 16-19 are "GRAY", rgb profile if bytes 16-19 - are "RGB ". We do not perform any full parsing of the ICC profile here, other - than check those 4 bytes to grayscale profile. Other than that, validity of - the profile is not checked. This is needed only because the PNG specification - requires using a non-gray color model if there is an ICC profile with "RGB " - (sadly limiting compression opportunities if the input data is grayscale RGB - data), and requires using a gray color model if it is "GRAY". - */ - if(size < 20) return 0; - return profile[16] == 'G' && profile[17] == 'R' && profile[18] == 'A' && profile[19] == 'Y'; -} - -static unsigned isRGBICCProfile(const unsigned char* profile, unsigned size) { - /* See comment in isGrayICCProfile*/ - if(size < 20) return 0; - return profile[16] == 'R' && profile[17] == 'G' && profile[18] == 'B' && profile[19] == ' '; -} -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -unsigned lodepng_encode(unsigned char** out, size_t* outsize, - const unsigned char* image, unsigned w, unsigned h, - LodePNGState* state) { - unsigned char* data = 0; /*uncompressed version of the IDAT chunk data*/ - size_t datasize = 0; - ucvector outv; - LodePNGInfo info; - - ucvector_init(&outv); - lodepng_info_init(&info); - - /*provide some proper output values if error will happen*/ - *out = 0; - *outsize = 0; - state->error = 0; - - /*check input values validity*/ - if((state->info_png.color.colortype == LCT_PALETTE || state->encoder.force_palette) - && (state->info_png.color.palettesize == 0 || state->info_png.color.palettesize > 256)) { - state->error = 68; /*invalid palette size, it is only allowed to be 1-256*/ - goto cleanup; - } - if(state->encoder.zlibsettings.btype > 2) { - state->error = 61; /*error: unexisting btype*/ - goto cleanup; - } - if(state->info_png.interlace_method > 1) { - state->error = 71; /*error: unexisting interlace mode*/ - goto cleanup; - } - state->error = checkColorValidity(state->info_png.color.colortype, state->info_png.color.bitdepth); - if(state->error) goto cleanup; /*error: unexisting color type given*/ - state->error = checkColorValidity(state->info_raw.colortype, state->info_raw.bitdepth); - if(state->error) goto cleanup; /*error: unexisting color type given*/ - - /* color convert and compute scanline filter types */ - lodepng_info_copy(&info, &state->info_png); - if(state->encoder.auto_convert) { -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - if(state->info_png.background_defined) { - unsigned bg_r = state->info_png.background_r; - unsigned bg_g = state->info_png.background_g; - unsigned bg_b = state->info_png.background_b; - unsigned r = 0, g = 0, b = 0; - LodePNGColorProfile prof; - LodePNGColorMode mode16 = lodepng_color_mode_make(LCT_RGB, 16); - lodepng_convert_rgb(&r, &g, &b, bg_r, bg_g, bg_b, &mode16, &state->info_png.color); - lodepng_color_profile_init(&prof); - state->error = lodepng_get_color_profile(&prof, image, w, h, &state->info_raw); - if(state->error) goto cleanup; - lodepng_color_profile_add(&prof, r, g, b, 65535); - state->error = auto_choose_color_from_profile(&info.color, &state->info_raw, &prof); - if(state->error) goto cleanup; - if(lodepng_convert_rgb(&info.background_r, &info.background_g, &info.background_b, - bg_r, bg_g, bg_b, &info.color, &state->info_png.color)) { - state->error = 104; - goto cleanup; - } - } - else -#endif /* LODEPNG_COMPILE_ANCILLARY_CHUNKS */ - { - state->error = lodepng_auto_choose_color(&info.color, image, w, h, &state->info_raw); - if(state->error) goto cleanup; - } - } -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - if(state->info_png.iccp_defined) { - unsigned gray_icc = isGrayICCProfile(state->info_png.iccp_profile, state->info_png.iccp_profile_size); - unsigned gray_png = info.color.colortype == LCT_GREY || info.color.colortype == LCT_GREY_ALPHA; - /* TODO: perhaps instead of giving errors or less optimal compression, we can automatically modify - the ICC profile here to say "GRAY" or "RGB " to match the PNG color type, unless this will require - non trivial changes to the rest of the ICC profile */ - if(!gray_icc && !isRGBICCProfile(state->info_png.iccp_profile, state->info_png.iccp_profile_size)) { - state->error = 100; /* Disallowed profile color type for PNG */ - goto cleanup; - } - if(!state->encoder.auto_convert && gray_icc != gray_png) { - /* Non recoverable: encoder not allowed to convert color type, and requested color type not - compatible with ICC color type */ - state->error = 101; - goto cleanup; - } - if(gray_icc && !gray_png) { - /* Non recoverable: trying to set grayscale ICC profile while colored pixels were given */ - state->error = 102; - goto cleanup; - /* NOTE: this relies on the fact that lodepng_auto_choose_color never returns palette for grayscale pixels */ - } - if(!gray_icc && gray_png) { - /* Recoverable but an unfortunate loss in compression density: We have grayscale pixels but - are forced to store them in more expensive RGB format that will repeat each value 3 times - because the PNG spec does not allow an RGB ICC profile with internal grayscale color data */ - if(info.color.colortype == LCT_GREY) info.color.colortype = LCT_RGB; - if(info.color.colortype == LCT_GREY_ALPHA) info.color.colortype = LCT_RGBA; - if(info.color.bitdepth < 8) info.color.bitdepth = 8; - } - } -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - if(!lodepng_color_mode_equal(&state->info_raw, &info.color)) { - unsigned char* converted; - size_t size = ((size_t)w * (size_t)h * (size_t)lodepng_get_bpp(&info.color) + 7) / 8; - - converted = (unsigned char*)lodepng_malloc(size); - if(!converted && size) state->error = 83; /*alloc fail*/ - if(!state->error) { - state->error = lodepng_convert(converted, image, &info.color, &state->info_raw, w, h); - } - if(!state->error) preProcessScanlines(&data, &datasize, converted, w, h, &info, &state->encoder); - lodepng_free(converted); - if(state->error) goto cleanup; - } - else preProcessScanlines(&data, &datasize, image, w, h, &info, &state->encoder); - - /* output all PNG chunks */ { -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - size_t i; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - /*write signature and chunks*/ - writeSignature(&outv); - /*IHDR*/ - addChunk_IHDR(&outv, w, h, info.color.colortype, info.color.bitdepth, info.interlace_method); -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - /*unknown chunks between IHDR and PLTE*/ - if(info.unknown_chunks_data[0]) { - state->error = addUnknownChunks(&outv, info.unknown_chunks_data[0], info.unknown_chunks_size[0]); - if(state->error) goto cleanup; - } - /*color profile chunks must come before PLTE */ - if(info.iccp_defined) addChunk_iCCP(&outv, &info, &state->encoder.zlibsettings); - if(info.srgb_defined) addChunk_sRGB(&outv, &info); - if(info.gama_defined) addChunk_gAMA(&outv, &info); - if(info.chrm_defined) addChunk_cHRM(&outv, &info); -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - /*PLTE*/ - if(info.color.colortype == LCT_PALETTE) { - addChunk_PLTE(&outv, &info.color); - } - if(state->encoder.force_palette && (info.color.colortype == LCT_RGB || info.color.colortype == LCT_RGBA)) { - addChunk_PLTE(&outv, &info.color); - } - /*tRNS*/ - if(info.color.colortype == LCT_PALETTE && getPaletteTranslucency(info.color.palette, info.color.palettesize) != 0) { - addChunk_tRNS(&outv, &info.color); - } - if((info.color.colortype == LCT_GREY || info.color.colortype == LCT_RGB) && info.color.key_defined) { - addChunk_tRNS(&outv, &info.color); - } -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - /*bKGD (must come between PLTE and the IDAt chunks*/ - if(info.background_defined) { - state->error = addChunk_bKGD(&outv, &info); - if(state->error) goto cleanup; - } - /*pHYs (must come before the IDAT chunks)*/ - if(info.phys_defined) addChunk_pHYs(&outv, &info); - - /*unknown chunks between PLTE and IDAT*/ - if(info.unknown_chunks_data[1]) { - state->error = addUnknownChunks(&outv, info.unknown_chunks_data[1], info.unknown_chunks_size[1]); - if(state->error) goto cleanup; - } -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - /*IDAT (multiple IDAT chunks must be consecutive)*/ - state->error = addChunk_IDAT(&outv, data, datasize, &state->encoder.zlibsettings); - if(state->error) goto cleanup; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - /*tIME*/ - if(info.time_defined) addChunk_tIME(&outv, &info.time); - /*tEXt and/or zTXt*/ - for(i = 0; i != info.text_num; ++i) { - if(strlen(info.text_keys[i]) > 79) { - state->error = 66; /*text chunk too large*/ - goto cleanup; - } - if(strlen(info.text_keys[i]) < 1) { - state->error = 67; /*text chunk too small*/ - goto cleanup; - } - if(state->encoder.text_compression) { - addChunk_zTXt(&outv, info.text_keys[i], info.text_strings[i], &state->encoder.zlibsettings); - } else { - addChunk_tEXt(&outv, info.text_keys[i], info.text_strings[i]); - } - } - /*LodePNG version id in text chunk*/ - if(state->encoder.add_id) { - unsigned already_added_id_text = 0; - for(i = 0; i != info.text_num; ++i) { - if(!strcmp(info.text_keys[i], "LodePNG")) { - already_added_id_text = 1; - break; - } - } - if(already_added_id_text == 0) { - addChunk_tEXt(&outv, "LodePNG", LODEPNG_VERSION_STRING); /*it's shorter as tEXt than as zTXt chunk*/ - } - } - /*iTXt*/ - for(i = 0; i != info.itext_num; ++i) { - if(strlen(info.itext_keys[i]) > 79) { - state->error = 66; /*text chunk too large*/ - goto cleanup; - } - if(strlen(info.itext_keys[i]) < 1) { - state->error = 67; /*text chunk too small*/ - goto cleanup; - } - addChunk_iTXt(&outv, state->encoder.text_compression, - info.itext_keys[i], info.itext_langtags[i], info.itext_transkeys[i], info.itext_strings[i], - &state->encoder.zlibsettings); - } - - /*unknown chunks between IDAT and IEND*/ - if(info.unknown_chunks_data[2]) { - state->error = addUnknownChunks(&outv, info.unknown_chunks_data[2], info.unknown_chunks_size[2]); - if(state->error) goto cleanup; - } -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - addChunk_IEND(&outv); - } - -cleanup: - lodepng_info_cleanup(&info); - lodepng_free(data); - - /*instead of cleaning the vector up, give it to the output*/ - *out = outv.data; - *outsize = outv.size; - - return state->error; -} - -unsigned lodepng_encode_memory(unsigned char** out, size_t* outsize, const unsigned char* image, - unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth) { - unsigned error; - LodePNGState state; - lodepng_state_init(&state); - state.info_raw.colortype = colortype; - state.info_raw.bitdepth = bitdepth; - state.info_png.color.colortype = colortype; - state.info_png.color.bitdepth = bitdepth; - lodepng_encode(out, outsize, image, w, h, &state); - error = state.error; - lodepng_state_cleanup(&state); - return error; -} - -unsigned lodepng_encode32(unsigned char** out, size_t* outsize, const unsigned char* image, unsigned w, unsigned h) { - return lodepng_encode_memory(out, outsize, image, w, h, LCT_RGBA, 8); -} - -unsigned lodepng_encode24(unsigned char** out, size_t* outsize, const unsigned char* image, unsigned w, unsigned h) { - return lodepng_encode_memory(out, outsize, image, w, h, LCT_RGB, 8); -} - -#ifdef LODEPNG_COMPILE_DISK -unsigned lodepng_encode_file(const char* filename, const unsigned char* image, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth) { - unsigned char* buffer; - size_t buffersize; - unsigned error = lodepng_encode_memory(&buffer, &buffersize, image, w, h, colortype, bitdepth); - if(!error) error = lodepng_save_file(buffer, buffersize, filename); - lodepng_free(buffer); - return error; -} - -unsigned lodepng_encode32_file(const char* filename, const unsigned char* image, unsigned w, unsigned h) { - return lodepng_encode_file(filename, image, w, h, LCT_RGBA, 8); -} - -unsigned lodepng_encode24_file(const char* filename, const unsigned char* image, unsigned w, unsigned h) { - return lodepng_encode_file(filename, image, w, h, LCT_RGB, 8); -} -#endif /*LODEPNG_COMPILE_DISK*/ - -void lodepng_encoder_settings_init(LodePNGEncoderSettings* settings) { - lodepng_compress_settings_init(&settings->zlibsettings); - settings->filter_palette_zero = 1; - settings->filter_strategy = LFS_MINSUM; - settings->auto_convert = 1; - settings->force_palette = 0; - settings->predefined_filters = 0; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - settings->add_id = 0; - settings->text_compression = 1; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -} - -#endif /*LODEPNG_COMPILE_ENCODER*/ -#endif /*LODEPNG_COMPILE_PNG*/ - -#ifdef LODEPNG_COMPILE_ERROR_TEXT -/* -This returns the description of a numerical error code in English. This is also -the documentation of all the error codes. -*/ -const char* lodepng_error_text(unsigned code) { - switch(code) { - case 0: return "no error, everything went ok"; - case 1: return "nothing done yet"; /*the Encoder/Decoder has done nothing yet, error checking makes no sense yet*/ - case 10: return "end of input memory reached without huffman end code"; /*while huffman decoding*/ - case 11: return "error in code tree made it jump outside of huffman tree"; /*while huffman decoding*/ - case 13: return "problem while processing dynamic deflate block"; - case 14: return "problem while processing dynamic deflate block"; - case 15: return "problem while processing dynamic deflate block"; - case 16: return "unexisting code while processing dynamic deflate block"; - case 17: return "end of out buffer memory reached while inflating"; - case 18: return "invalid distance code while inflating"; - case 19: return "end of out buffer memory reached while inflating"; - case 20: return "invalid deflate block BTYPE encountered while decoding"; - case 21: return "NLEN is not ones complement of LEN in a deflate block"; - - /*end of out buffer memory reached while inflating: - This can happen if the inflated deflate data is longer than the amount of bytes required to fill up - all the pixels of the image, given the color depth and image dimensions. Something that doesn't - happen in a normal, well encoded, PNG image.*/ - case 22: return "end of out buffer memory reached while inflating"; - case 23: return "end of in buffer memory reached while inflating"; - case 24: return "invalid FCHECK in zlib header"; - case 25: return "invalid compression method in zlib header"; - case 26: return "FDICT encountered in zlib header while it's not used for PNG"; - case 27: return "PNG file is smaller than a PNG header"; - /*Checks the magic file header, the first 8 bytes of the PNG file*/ - case 28: return "incorrect PNG signature, it's no PNG or corrupted"; - case 29: return "first chunk is not the header chunk"; - case 30: return "chunk length too large, chunk broken off at end of file"; - case 31: return "illegal PNG color type or bpp"; - case 32: return "illegal PNG compression method"; - case 33: return "illegal PNG filter method"; - case 34: return "illegal PNG interlace method"; - case 35: return "chunk length of a chunk is too large or the chunk too small"; - case 36: return "illegal PNG filter type encountered"; - case 37: return "illegal bit depth for this color type given"; - case 38: return "the palette is too big"; /*more than 256 colors*/ - case 39: return "tRNS chunk before PLTE or has more entries than palette size"; - case 40: return "tRNS chunk has wrong size for grayscale image"; - case 41: return "tRNS chunk has wrong size for RGB image"; - case 42: return "tRNS chunk appeared while it was not allowed for this color type"; - case 43: return "bKGD chunk has wrong size for palette image"; - case 44: return "bKGD chunk has wrong size for grayscale image"; - case 45: return "bKGD chunk has wrong size for RGB image"; - case 48: return "empty input buffer given to decoder. Maybe caused by non-existing file?"; - case 49: return "jumped past memory while generating dynamic huffman tree"; - case 50: return "jumped past memory while generating dynamic huffman tree"; - case 51: return "jumped past memory while inflating huffman block"; - case 52: return "jumped past memory while inflating"; - case 53: return "size of zlib data too small"; - case 54: return "repeat symbol in tree while there was no value symbol yet"; - /*jumped past tree while generating huffman tree, this could be when the - tree will have more leaves than symbols after generating it out of the - given lenghts. They call this an oversubscribed dynamic bit lengths tree in zlib.*/ - case 55: return "jumped past tree while generating huffman tree"; - case 56: return "given output image colortype or bitdepth not supported for color conversion"; - case 57: return "invalid CRC encountered (checking CRC can be disabled)"; - case 58: return "invalid ADLER32 encountered (checking ADLER32 can be disabled)"; - case 59: return "requested color conversion not supported"; - case 60: return "invalid window size given in the settings of the encoder (must be 0-32768)"; - case 61: return "invalid BTYPE given in the settings of the encoder (only 0, 1 and 2 are allowed)"; - /*LodePNG leaves the choice of RGB to grayscale conversion formula to the user.*/ - case 62: return "conversion from color to grayscale not supported"; - /*(2^31-1)*/ - case 63: return "length of a chunk too long, max allowed for PNG is 2147483647 bytes per chunk"; - /*this would result in the inability of a deflated block to ever contain an end code. It must be at least 1.*/ - case 64: return "the length of the END symbol 256 in the Huffman tree is 0"; - case 66: return "the length of a text chunk keyword given to the encoder is longer than the maximum of 79 bytes"; - case 67: return "the length of a text chunk keyword given to the encoder is smaller than the minimum of 1 byte"; - case 68: return "tried to encode a PLTE chunk with a palette that has less than 1 or more than 256 colors"; - case 69: return "unknown chunk type with 'critical' flag encountered by the decoder"; - case 71: return "unexisting interlace mode given to encoder (must be 0 or 1)"; - case 72: return "while decoding, unexisting compression method encountering in zTXt or iTXt chunk (it must be 0)"; - case 73: return "invalid tIME chunk size"; - case 74: return "invalid pHYs chunk size"; - /*length could be wrong, or data chopped off*/ - case 75: return "no null termination char found while decoding text chunk"; - case 76: return "iTXt chunk too short to contain required bytes"; - case 77: return "integer overflow in buffer size"; - case 78: return "failed to open file for reading"; /*file doesn't exist or couldn't be opened for reading*/ - case 79: return "failed to open file for writing"; - case 80: return "tried creating a tree of 0 symbols"; - case 81: return "lazy matching at pos 0 is impossible"; - case 82: return "color conversion to palette requested while a color isn't in palette, or index out of bounds"; - case 83: return "memory allocation failed"; - case 84: return "given image too small to contain all pixels to be encoded"; - case 86: return "impossible offset in lz77 encoding (internal bug)"; - case 87: return "must provide custom zlib function pointer if LODEPNG_COMPILE_ZLIB is not defined"; - case 88: return "invalid filter strategy given for LodePNGEncoderSettings.filter_strategy"; - case 89: return "text chunk keyword too short or long: must have size 1-79"; - /*the windowsize in the LodePNGCompressSettings. Requiring POT(==> & instead of %) makes encoding 12% faster.*/ - case 90: return "windowsize must be a power of two"; - case 91: return "invalid decompressed idat size"; - case 92: return "integer overflow due to too many pixels"; - case 93: return "zero width or height is invalid"; - case 94: return "header chunk must have a size of 13 bytes"; - case 95: return "integer overflow with combined idat chunk size"; - case 96: return "invalid gAMA chunk size"; - case 97: return "invalid cHRM chunk size"; - case 98: return "invalid sRGB chunk size"; - case 99: return "invalid sRGB rendering intent"; - case 100: return "invalid ICC profile color type, the PNG specification only allows RGB or GRAY"; - case 101: return "PNG specification does not allow RGB ICC profile on gray color types and vice versa"; - case 102: return "not allowed to set grayscale ICC profile with colored pixels by PNG specification"; - case 103: return "invalid palette index in bKGD chunk. Maybe it came before PLTE chunk?"; - case 104: return "invalid bKGD color while encoding (e.g. palette index out of range)"; - } - return "unknown error code"; -} -#endif /*LODEPNG_COMPILE_ERROR_TEXT*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* // C++ Wrapper // */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_CPP -namespace lodepng { - -#ifdef LODEPNG_COMPILE_DISK -unsigned load_file(std::vector<unsigned char>& buffer, const std::string& filename) { - long size = lodepng_filesize(filename.c_str()); - if(size < 0) return 78; - buffer.resize((size_t)size); - return size == 0 ? 0 : lodepng_buffer_file(&buffer[0], (size_t)size, filename.c_str()); -} - -/*write given buffer to the file, overwriting the file, it doesn't append to it.*/ -unsigned save_file(const std::vector<unsigned char>& buffer, const std::string& filename) { - return lodepng_save_file(buffer.empty() ? 0 : &buffer[0], buffer.size(), filename.c_str()); -} -#endif /* LODEPNG_COMPILE_DISK */ - -#ifdef LODEPNG_COMPILE_ZLIB -#ifdef LODEPNG_COMPILE_DECODER -unsigned decompress(std::vector<unsigned char>& out, const unsigned char* in, size_t insize, - const LodePNGDecompressSettings& settings) { - unsigned char* buffer = 0; - size_t buffersize = 0; - unsigned error = zlib_decompress(&buffer, &buffersize, in, insize, &settings); - if(buffer) { - out.insert(out.end(), &buffer[0], &buffer[buffersize]); - lodepng_free(buffer); - } - return error; -} - -unsigned decompress(std::vector<unsigned char>& out, const std::vector<unsigned char>& in, - const LodePNGDecompressSettings& settings) { - return decompress(out, in.empty() ? 0 : &in[0], in.size(), settings); -} -#endif /* LODEPNG_COMPILE_DECODER */ - -#ifdef LODEPNG_COMPILE_ENCODER -unsigned compress(std::vector<unsigned char>& out, const unsigned char* in, size_t insize, - const LodePNGCompressSettings& settings) { - unsigned char* buffer = 0; - size_t buffersize = 0; - unsigned error = zlib_compress(&buffer, &buffersize, in, insize, &settings); - if(buffer) { - out.insert(out.end(), &buffer[0], &buffer[buffersize]); - lodepng_free(buffer); - } - return error; -} - -unsigned compress(std::vector<unsigned char>& out, const std::vector<unsigned char>& in, - const LodePNGCompressSettings& settings) { - return compress(out, in.empty() ? 0 : &in[0], in.size(), settings); -} -#endif /* LODEPNG_COMPILE_ENCODER */ -#endif /* LODEPNG_COMPILE_ZLIB */ - - -#ifdef LODEPNG_COMPILE_PNG - -State::State() { - lodepng_state_init(this); -} - -State::State(const State& other) { - lodepng_state_init(this); - lodepng_state_copy(this, &other); -} - -State::~State() { - lodepng_state_cleanup(this); -} - -State& State::operator=(const State& other) { - lodepng_state_copy(this, &other); - return *this; -} - -#ifdef LODEPNG_COMPILE_DECODER - -unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, const unsigned char* in, - size_t insize, LodePNGColorType colortype, unsigned bitdepth) { - unsigned char* buffer; - unsigned error = lodepng_decode_memory(&buffer, &w, &h, in, insize, colortype, bitdepth); - if(buffer && !error) { - State state; - state.info_raw.colortype = colortype; - state.info_raw.bitdepth = bitdepth; - size_t buffersize = lodepng_get_raw_size(w, h, &state.info_raw); - out.insert(out.end(), &buffer[0], &buffer[buffersize]); - lodepng_free(buffer); - } - return error; -} - -unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, - const std::vector<unsigned char>& in, LodePNGColorType colortype, unsigned bitdepth) { - return decode(out, w, h, in.empty() ? 0 : &in[0], (unsigned)in.size(), colortype, bitdepth); -} - -unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, - State& state, - const unsigned char* in, size_t insize) { - unsigned char* buffer = NULL; - unsigned error = lodepng_decode(&buffer, &w, &h, &state, in, insize); - if(buffer && !error) { - size_t buffersize = lodepng_get_raw_size(w, h, &state.info_raw); - out.insert(out.end(), &buffer[0], &buffer[buffersize]); - } - lodepng_free(buffer); - return error; -} - -unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, - State& state, - const std::vector<unsigned char>& in) { - return decode(out, w, h, state, in.empty() ? 0 : &in[0], in.size()); -} - -#ifdef LODEPNG_COMPILE_DISK -unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, const std::string& filename, - LodePNGColorType colortype, unsigned bitdepth) { - std::vector<unsigned char> buffer; - /* safe output values in case error happens */ - w = h = 0; - unsigned error = load_file(buffer, filename); - if(error) return error; - return decode(out, w, h, buffer, colortype, bitdepth); -} -#endif /* LODEPNG_COMPILE_DECODER */ -#endif /* LODEPNG_COMPILE_DISK */ - -#ifdef LODEPNG_COMPILE_ENCODER -unsigned encode(std::vector<unsigned char>& out, const unsigned char* in, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth) { - unsigned char* buffer; - size_t buffersize; - unsigned error = lodepng_encode_memory(&buffer, &buffersize, in, w, h, colortype, bitdepth); - if(buffer) { - out.insert(out.end(), &buffer[0], &buffer[buffersize]); - lodepng_free(buffer); - } - return error; -} - -unsigned encode(std::vector<unsigned char>& out, - const std::vector<unsigned char>& in, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth) { - if(lodepng_get_raw_size_lct(w, h, colortype, bitdepth) > in.size()) return 84; - return encode(out, in.empty() ? 0 : &in[0], w, h, colortype, bitdepth); -} - -unsigned encode(std::vector<unsigned char>& out, - const unsigned char* in, unsigned w, unsigned h, - State& state) { - unsigned char* buffer; - size_t buffersize; - unsigned error = lodepng_encode(&buffer, &buffersize, in, w, h, &state); - if(buffer) { - out.insert(out.end(), &buffer[0], &buffer[buffersize]); - lodepng_free(buffer); - } - return error; -} - -unsigned encode(std::vector<unsigned char>& out, - const std::vector<unsigned char>& in, unsigned w, unsigned h, - State& state) { - if(lodepng_get_raw_size(w, h, &state.info_raw) > in.size()) return 84; - return encode(out, in.empty() ? 0 : &in[0], w, h, state); -} - -#ifdef LODEPNG_COMPILE_DISK -unsigned encode(const std::string& filename, - const unsigned char* in, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth) { - std::vector<unsigned char> buffer; - unsigned error = encode(buffer, in, w, h, colortype, bitdepth); - if(!error) error = save_file(buffer, filename); - return error; -} - -unsigned encode(const std::string& filename, - const std::vector<unsigned char>& in, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth) { - if(lodepng_get_raw_size_lct(w, h, colortype, bitdepth) > in.size()) return 84; - return encode(filename, in.empty() ? 0 : &in[0], w, h, colortype, bitdepth); -} -#endif /* LODEPNG_COMPILE_DISK */ -#endif /* LODEPNG_COMPILE_ENCODER */ -#endif /* LODEPNG_COMPILE_PNG */ -} /* namespace lodepng */ -#endif /*LODEPNG_COMPILE_CPP*/ diff --git a/thirdparty/basis_universal/encoder/lodepng.h b/thirdparty/basis_universal/encoder/lodepng.h deleted file mode 100644 index 476a2061e2..0000000000 --- a/thirdparty/basis_universal/encoder/lodepng.h +++ /dev/null @@ -1,1930 +0,0 @@ -/* -LodePNG version 20190210 - -Copyright (c) 2005-2019 Lode Vandevenne - -This software is provided 'as-is', without any express or implied -warranty. In no event will the authors be held liable for any damages -arising from the use of this software. - -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it -freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - - 3. This notice may not be removed or altered from any source - distribution. -*/ - -#ifndef LODEPNG_H -#define LODEPNG_H - -#include <string.h> /*for size_t*/ - -extern const char* LODEPNG_VERSION_STRING; - -/* -The following #defines are used to create code sections. They can be disabled -to disable code sections, which can give faster compile time and smaller binary. -The "NO_COMPILE" defines are designed to be used to pass as defines to the -compiler command to disable them without modifying this header, e.g. --DLODEPNG_NO_COMPILE_ZLIB for gcc. -In addition to those below, you can also define LODEPNG_NO_COMPILE_CRC to -allow implementing a custom lodepng_crc32. -*/ -/*deflate & zlib. If disabled, you must specify alternative zlib functions in -the custom_zlib field of the compress and decompress settings*/ -#ifndef LODEPNG_NO_COMPILE_ZLIB -#define LODEPNG_COMPILE_ZLIB -#endif - -/*png encoder and png decoder*/ -#ifndef LODEPNG_NO_COMPILE_PNG -#define LODEPNG_COMPILE_PNG -#endif - -/*deflate&zlib decoder and png decoder*/ -#ifndef LODEPNG_NO_COMPILE_DECODER -#define LODEPNG_COMPILE_DECODER -#endif - -/*deflate&zlib encoder and png encoder*/ -#ifndef LODEPNG_NO_COMPILE_ENCODER -#define LODEPNG_COMPILE_ENCODER -#endif - -/*the optional built in harddisk file loading and saving functions*/ -#ifndef LODEPNG_NO_COMPILE_DISK -#define LODEPNG_COMPILE_DISK -#endif - -/*support for chunks other than IHDR, IDAT, PLTE, tRNS, IEND: ancillary and unknown chunks*/ -#ifndef LODEPNG_NO_COMPILE_ANCILLARY_CHUNKS -#define LODEPNG_COMPILE_ANCILLARY_CHUNKS -#endif - -/*ability to convert error numerical codes to English text string*/ -#ifndef LODEPNG_NO_COMPILE_ERROR_TEXT -#define LODEPNG_COMPILE_ERROR_TEXT -#endif - -/*Compile the default allocators (C's free, malloc and realloc). If you disable this, -you can define the functions lodepng_free, lodepng_malloc and lodepng_realloc in your -source files with custom allocators.*/ -#ifndef LODEPNG_NO_COMPILE_ALLOCATORS -#define LODEPNG_COMPILE_ALLOCATORS -#endif - -/*compile the C++ version (you can disable the C++ wrapper here even when compiling for C++)*/ -#ifdef __cplusplus -#ifndef LODEPNG_NO_COMPILE_CPP -#define LODEPNG_COMPILE_CPP -#endif -#endif - -#ifdef LODEPNG_COMPILE_CPP -#include <vector> -#include <string> -#endif /*LODEPNG_COMPILE_CPP*/ - -#ifdef LODEPNG_COMPILE_PNG -/*The PNG color types (also used for raw).*/ -typedef enum LodePNGColorType { - LCT_GREY = 0, /*grayscale: 1,2,4,8,16 bit*/ - LCT_RGB = 2, /*RGB: 8,16 bit*/ - LCT_PALETTE = 3, /*palette: 1,2,4,8 bit*/ - LCT_GREY_ALPHA = 4, /*grayscale with alpha: 8,16 bit*/ - LCT_RGBA = 6 /*RGB with alpha: 8,16 bit*/ -} LodePNGColorType; - -#ifdef LODEPNG_COMPILE_DECODER -/* -Converts PNG data in memory to raw pixel data. -out: Output parameter. Pointer to buffer that will contain the raw pixel data. - After decoding, its size is w * h * (bytes per pixel) bytes larger than - initially. Bytes per pixel depends on colortype and bitdepth. - Must be freed after usage with free(*out). - Note: for 16-bit per channel colors, uses big endian format like PNG does. -w: Output parameter. Pointer to width of pixel data. -h: Output parameter. Pointer to height of pixel data. -in: Memory buffer with the PNG file. -insize: size of the in buffer. -colortype: the desired color type for the raw output image. See explanation on PNG color types. -bitdepth: the desired bit depth for the raw output image. See explanation on PNG color types. -Return value: LodePNG error code (0 means no error). -*/ -unsigned lodepng_decode_memory(unsigned char** out, unsigned* w, unsigned* h, - const unsigned char* in, size_t insize, - LodePNGColorType colortype, unsigned bitdepth); - -/*Same as lodepng_decode_memory, but always decodes to 32-bit RGBA raw image*/ -unsigned lodepng_decode32(unsigned char** out, unsigned* w, unsigned* h, - const unsigned char* in, size_t insize); - -/*Same as lodepng_decode_memory, but always decodes to 24-bit RGB raw image*/ -unsigned lodepng_decode24(unsigned char** out, unsigned* w, unsigned* h, - const unsigned char* in, size_t insize); - -#ifdef LODEPNG_COMPILE_DISK -/* -Load PNG from disk, from file with given name. -Same as the other decode functions, but instead takes a filename as input. -*/ -unsigned lodepng_decode_file(unsigned char** out, unsigned* w, unsigned* h, - const char* filename, - LodePNGColorType colortype, unsigned bitdepth); - -/*Same as lodepng_decode_file, but always decodes to 32-bit RGBA raw image.*/ -unsigned lodepng_decode32_file(unsigned char** out, unsigned* w, unsigned* h, - const char* filename); - -/*Same as lodepng_decode_file, but always decodes to 24-bit RGB raw image.*/ -unsigned lodepng_decode24_file(unsigned char** out, unsigned* w, unsigned* h, - const char* filename); -#endif /*LODEPNG_COMPILE_DISK*/ -#endif /*LODEPNG_COMPILE_DECODER*/ - - -#ifdef LODEPNG_COMPILE_ENCODER -/* -Converts raw pixel data into a PNG image in memory. The colortype and bitdepth - of the output PNG image cannot be chosen, they are automatically determined - by the colortype, bitdepth and content of the input pixel data. - Note: for 16-bit per channel colors, needs big endian format like PNG does. -out: Output parameter. Pointer to buffer that will contain the PNG image data. - Must be freed after usage with free(*out). -outsize: Output parameter. Pointer to the size in bytes of the out buffer. -image: The raw pixel data to encode. The size of this buffer should be - w * h * (bytes per pixel), bytes per pixel depends on colortype and bitdepth. -w: width of the raw pixel data in pixels. -h: height of the raw pixel data in pixels. -colortype: the color type of the raw input image. See explanation on PNG color types. -bitdepth: the bit depth of the raw input image. See explanation on PNG color types. -Return value: LodePNG error code (0 means no error). -*/ -unsigned lodepng_encode_memory(unsigned char** out, size_t* outsize, - const unsigned char* image, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth); - -/*Same as lodepng_encode_memory, but always encodes from 32-bit RGBA raw image.*/ -unsigned lodepng_encode32(unsigned char** out, size_t* outsize, - const unsigned char* image, unsigned w, unsigned h); - -/*Same as lodepng_encode_memory, but always encodes from 24-bit RGB raw image.*/ -unsigned lodepng_encode24(unsigned char** out, size_t* outsize, - const unsigned char* image, unsigned w, unsigned h); - -#ifdef LODEPNG_COMPILE_DISK -/* -Converts raw pixel data into a PNG file on disk. -Same as the other encode functions, but instead takes a filename as output. -NOTE: This overwrites existing files without warning! -*/ -unsigned lodepng_encode_file(const char* filename, - const unsigned char* image, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth); - -/*Same as lodepng_encode_file, but always encodes from 32-bit RGBA raw image.*/ -unsigned lodepng_encode32_file(const char* filename, - const unsigned char* image, unsigned w, unsigned h); - -/*Same as lodepng_encode_file, but always encodes from 24-bit RGB raw image.*/ -unsigned lodepng_encode24_file(const char* filename, - const unsigned char* image, unsigned w, unsigned h); -#endif /*LODEPNG_COMPILE_DISK*/ -#endif /*LODEPNG_COMPILE_ENCODER*/ - - -#ifdef LODEPNG_COMPILE_CPP -namespace lodepng { -#ifdef LODEPNG_COMPILE_DECODER -/*Same as lodepng_decode_memory, but decodes to an std::vector. The colortype -is the format to output the pixels to. Default is RGBA 8-bit per channel.*/ -unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, - const unsigned char* in, size_t insize, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, - const std::vector<unsigned char>& in, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -#ifdef LODEPNG_COMPILE_DISK -/* -Converts PNG file from disk to raw pixel data in memory. -Same as the other decode functions, but instead takes a filename as input. -*/ -unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, - const std::string& filename, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -#endif /* LODEPNG_COMPILE_DISK */ -#endif /* LODEPNG_COMPILE_DECODER */ - -#ifdef LODEPNG_COMPILE_ENCODER -/*Same as lodepng_encode_memory, but encodes to an std::vector. colortype -is that of the raw input data. The output PNG color type will be auto chosen.*/ -unsigned encode(std::vector<unsigned char>& out, - const unsigned char* in, unsigned w, unsigned h, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -unsigned encode(std::vector<unsigned char>& out, - const std::vector<unsigned char>& in, unsigned w, unsigned h, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -#ifdef LODEPNG_COMPILE_DISK -/* -Converts 32-bit RGBA raw pixel data into a PNG file on disk. -Same as the other encode functions, but instead takes a filename as output. -NOTE: This overwrites existing files without warning! -*/ -unsigned encode(const std::string& filename, - const unsigned char* in, unsigned w, unsigned h, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -unsigned encode(const std::string& filename, - const std::vector<unsigned char>& in, unsigned w, unsigned h, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -#endif /* LODEPNG_COMPILE_DISK */ -#endif /* LODEPNG_COMPILE_ENCODER */ -} /* namespace lodepng */ -#endif /*LODEPNG_COMPILE_CPP*/ -#endif /*LODEPNG_COMPILE_PNG*/ - -#ifdef LODEPNG_COMPILE_ERROR_TEXT -/*Returns an English description of the numerical error code.*/ -const char* lodepng_error_text(unsigned code); -#endif /*LODEPNG_COMPILE_ERROR_TEXT*/ - -#ifdef LODEPNG_COMPILE_DECODER -/*Settings for zlib decompression*/ -typedef struct LodePNGDecompressSettings LodePNGDecompressSettings; -struct LodePNGDecompressSettings { - /* Check LodePNGDecoderSettings for more ignorable errors such as ignore_crc */ - unsigned ignore_adler32; /*if 1, continue and don't give an error message if the Adler32 checksum is corrupted*/ - - /*use custom zlib decoder instead of built in one (default: null)*/ - unsigned (*custom_zlib)(unsigned char**, size_t*, - const unsigned char*, size_t, - const LodePNGDecompressSettings*); - /*use custom deflate decoder instead of built in one (default: null) - if custom_zlib is used, custom_deflate is ignored since only the built in - zlib function will call custom_deflate*/ - unsigned (*custom_inflate)(unsigned char**, size_t*, - const unsigned char*, size_t, - const LodePNGDecompressSettings*); - - const void* custom_context; /*optional custom settings for custom functions*/ -}; - -extern const LodePNGDecompressSettings lodepng_default_decompress_settings; -void lodepng_decompress_settings_init(LodePNGDecompressSettings* settings); -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_ENCODER -/* -Settings for zlib compression. Tweaking these settings tweaks the balance -between speed and compression ratio. -*/ -typedef struct LodePNGCompressSettings LodePNGCompressSettings; -struct LodePNGCompressSettings /*deflate = compress*/ { - /*LZ77 related settings*/ - unsigned btype; /*the block type for LZ (0, 1, 2 or 3, see zlib standard). Should be 2 for proper compression.*/ - unsigned use_lz77; /*whether or not to use LZ77. Should be 1 for proper compression.*/ - unsigned windowsize; /*must be a power of two <= 32768. higher compresses more but is slower. Default value: 2048.*/ - unsigned minmatch; /*mininum lz77 length. 3 is normally best, 6 can be better for some PNGs. Default: 0*/ - unsigned nicematch; /*stop searching if >= this length found. Set to 258 for best compression. Default: 128*/ - unsigned lazymatching; /*use lazy matching: better compression but a bit slower. Default: true*/ - - /*use custom zlib encoder instead of built in one (default: null)*/ - unsigned (*custom_zlib)(unsigned char**, size_t*, - const unsigned char*, size_t, - const LodePNGCompressSettings*); - /*use custom deflate encoder instead of built in one (default: null) - if custom_zlib is used, custom_deflate is ignored since only the built in - zlib function will call custom_deflate*/ - unsigned (*custom_deflate)(unsigned char**, size_t*, - const unsigned char*, size_t, - const LodePNGCompressSettings*); - - const void* custom_context; /*optional custom settings for custom functions*/ -}; - -extern const LodePNGCompressSettings lodepng_default_compress_settings; -void lodepng_compress_settings_init(LodePNGCompressSettings* settings); -#endif /*LODEPNG_COMPILE_ENCODER*/ - -#ifdef LODEPNG_COMPILE_PNG -/* -Color mode of an image. Contains all information required to decode the pixel -bits to RGBA colors. This information is the same as used in the PNG file -format, and is used both for PNG and raw image data in LodePNG. -*/ -typedef struct LodePNGColorMode { - /*header (IHDR)*/ - LodePNGColorType colortype; /*color type, see PNG standard or documentation further in this header file*/ - unsigned bitdepth; /*bits per sample, see PNG standard or documentation further in this header file*/ - - /* - palette (PLTE and tRNS) - - Dynamically allocated with the colors of the palette, including alpha. - When encoding a PNG, to store your colors in the palette of the LodePNGColorMode, first use - lodepng_palette_clear, then for each color use lodepng_palette_add. - If you encode an image without alpha with palette, don't forget to put value 255 in each A byte of the palette. - - When decoding, by default you can ignore this palette, since LodePNG already - fills the palette colors in the pixels of the raw RGBA output. - - The palette is only supported for color type 3. - */ - unsigned char* palette; /*palette in RGBARGBA... order. When allocated, must be either 0, or have size 1024*/ - size_t palettesize; /*palette size in number of colors (amount of bytes is 4 * palettesize)*/ - - /* - transparent color key (tRNS) - - This color uses the same bit depth as the bitdepth value in this struct, which can be 1-bit to 16-bit. - For grayscale PNGs, r, g and b will all 3 be set to the same. - - When decoding, by default you can ignore this information, since LodePNG sets - pixels with this key to transparent already in the raw RGBA output. - - The color key is only supported for color types 0 and 2. - */ - unsigned key_defined; /*is a transparent color key given? 0 = false, 1 = true*/ - unsigned key_r; /*red/grayscale component of color key*/ - unsigned key_g; /*green component of color key*/ - unsigned key_b; /*blue component of color key*/ -} LodePNGColorMode; - -/*init, cleanup and copy functions to use with this struct*/ -void lodepng_color_mode_init(LodePNGColorMode* info); -void lodepng_color_mode_cleanup(LodePNGColorMode* info); -/*return value is error code (0 means no error)*/ -unsigned lodepng_color_mode_copy(LodePNGColorMode* dest, const LodePNGColorMode* source); -/* Makes a temporary LodePNGColorMode that does not need cleanup (no palette) */ -LodePNGColorMode lodepng_color_mode_make(LodePNGColorType colortype, unsigned bitdepth); - -void lodepng_palette_clear(LodePNGColorMode* info); -/*add 1 color to the palette*/ -unsigned lodepng_palette_add(LodePNGColorMode* info, - unsigned char r, unsigned char g, unsigned char b, unsigned char a); - -/*get the total amount of bits per pixel, based on colortype and bitdepth in the struct*/ -unsigned lodepng_get_bpp(const LodePNGColorMode* info); -/*get the amount of color channels used, based on colortype in the struct. -If a palette is used, it counts as 1 channel.*/ -unsigned lodepng_get_channels(const LodePNGColorMode* info); -/*is it a grayscale type? (only colortype 0 or 4)*/ -unsigned lodepng_is_greyscale_type(const LodePNGColorMode* info); -/*has it got an alpha channel? (only colortype 2 or 6)*/ -unsigned lodepng_is_alpha_type(const LodePNGColorMode* info); -/*has it got a palette? (only colortype 3)*/ -unsigned lodepng_is_palette_type(const LodePNGColorMode* info); -/*only returns true if there is a palette and there is a value in the palette with alpha < 255. -Loops through the palette to check this.*/ -unsigned lodepng_has_palette_alpha(const LodePNGColorMode* info); -/* -Check if the given color info indicates the possibility of having non-opaque pixels in the PNG image. -Returns true if the image can have translucent or invisible pixels (it still be opaque if it doesn't use such pixels). -Returns false if the image can only have opaque pixels. -In detail, it returns true only if it's a color type with alpha, or has a palette with non-opaque values, -or if "key_defined" is true. -*/ -unsigned lodepng_can_have_alpha(const LodePNGColorMode* info); -/*Returns the byte size of a raw image buffer with given width, height and color mode*/ -size_t lodepng_get_raw_size(unsigned w, unsigned h, const LodePNGColorMode* color); - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS -/*The information of a Time chunk in PNG.*/ -typedef struct LodePNGTime { - unsigned year; /*2 bytes used (0-65535)*/ - unsigned month; /*1-12*/ - unsigned day; /*1-31*/ - unsigned hour; /*0-23*/ - unsigned minute; /*0-59*/ - unsigned second; /*0-60 (to allow for leap seconds)*/ -} LodePNGTime; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -/*Information about the PNG image, except pixels, width and height.*/ -typedef struct LodePNGInfo { - /*header (IHDR), palette (PLTE) and transparency (tRNS) chunks*/ - unsigned compression_method;/*compression method of the original file. Always 0.*/ - unsigned filter_method; /*filter method of the original file*/ - unsigned interlace_method; /*interlace method of the original file: 0=none, 1=Adam7*/ - LodePNGColorMode color; /*color type and bits, palette and transparency of the PNG file*/ - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - /* - Suggested background color chunk (bKGD) - - This uses the same color mode and bit depth as the PNG (except no alpha channel), - with values truncated to the bit depth in the unsigned integer. - - For grayscale and palette PNGs, the value is stored in background_r. The values - in background_g and background_b are then unused. - - So when decoding, you may get these in a different color mode than the one you requested - for the raw pixels. - - When encoding with auto_convert, you must use the color model defined in info_png.color for - these values. The encoder normally ignores info_png.color when auto_convert is on, but will - use it to interpret these values (and convert copies of them to its chosen color model). - - When encoding, avoid setting this to an expensive color, such as a non-gray value - when the image is gray, or the compression will be worse since it will be forced to - write the PNG with a more expensive color mode (when auto_convert is on). - - The decoder does not use this background color to edit the color of pixels. This is a - completely optional metadata feature. - */ - unsigned background_defined; /*is a suggested background color given?*/ - unsigned background_r; /*red/gray/palette component of suggested background color*/ - unsigned background_g; /*green component of suggested background color*/ - unsigned background_b; /*blue component of suggested background color*/ - - /* - non-international text chunks (tEXt and zTXt) - - The char** arrays each contain num strings. The actual messages are in - text_strings, while text_keys are keywords that give a short description what - the actual text represents, e.g. Title, Author, Description, or anything else. - - All the string fields below including keys, names and language tags are null terminated. - The PNG specification uses null characters for the keys, names and tags, and forbids null - characters to appear in the main text which is why we can use null termination everywhere here. - - A keyword is minimum 1 character and maximum 79 characters long. It's - discouraged to use a single line length longer than 79 characters for texts. - - Don't allocate these text buffers yourself. Use the init/cleanup functions - correctly and use lodepng_add_text and lodepng_clear_text. - */ - size_t text_num; /*the amount of texts in these char** buffers (there may be more texts in itext)*/ - char** text_keys; /*the keyword of a text chunk (e.g. "Comment")*/ - char** text_strings; /*the actual text*/ - - /* - international text chunks (iTXt) - Similar to the non-international text chunks, but with additional strings - "langtags" and "transkeys". - */ - size_t itext_num; /*the amount of international texts in this PNG*/ - char** itext_keys; /*the English keyword of the text chunk (e.g. "Comment")*/ - char** itext_langtags; /*language tag for this text's language, ISO/IEC 646 string, e.g. ISO 639 language tag*/ - char** itext_transkeys; /*keyword translated to the international language - UTF-8 string*/ - char** itext_strings; /*the actual international text - UTF-8 string*/ - - /*time chunk (tIME)*/ - unsigned time_defined; /*set to 1 to make the encoder generate a tIME chunk*/ - LodePNGTime time; - - /*phys chunk (pHYs)*/ - unsigned phys_defined; /*if 0, there is no pHYs chunk and the values below are undefined, if 1 else there is one*/ - unsigned phys_x; /*pixels per unit in x direction*/ - unsigned phys_y; /*pixels per unit in y direction*/ - unsigned phys_unit; /*may be 0 (unknown unit) or 1 (metre)*/ - - /* - Color profile related chunks: gAMA, cHRM, sRGB, iCPP - - LodePNG does not apply any color conversions on pixels in the encoder or decoder and does not interpret these color - profile values. It merely passes on the information. If you wish to use color profiles and convert colors, please - use these values with a color management library. - - See the PNG, ICC and sRGB specifications for more information about the meaning of these values. - */ - - /* gAMA chunk: optional, overridden by sRGB or iCCP if those are present. */ - unsigned gama_defined; /* Whether a gAMA chunk is present (0 = not present, 1 = present). */ - unsigned gama_gamma; /* Gamma exponent times 100000 */ - - /* cHRM chunk: optional, overridden by sRGB or iCCP if those are present. */ - unsigned chrm_defined; /* Whether a cHRM chunk is present (0 = not present, 1 = present). */ - unsigned chrm_white_x; /* White Point x times 100000 */ - unsigned chrm_white_y; /* White Point y times 100000 */ - unsigned chrm_red_x; /* Red x times 100000 */ - unsigned chrm_red_y; /* Red y times 100000 */ - unsigned chrm_green_x; /* Green x times 100000 */ - unsigned chrm_green_y; /* Green y times 100000 */ - unsigned chrm_blue_x; /* Blue x times 100000 */ - unsigned chrm_blue_y; /* Blue y times 100000 */ - - /* - sRGB chunk: optional. May not appear at the same time as iCCP. - If gAMA is also present gAMA must contain value 45455. - If cHRM is also present cHRM must contain respectively 31270,32900,64000,33000,30000,60000,15000,6000. - */ - unsigned srgb_defined; /* Whether an sRGB chunk is present (0 = not present, 1 = present). */ - unsigned srgb_intent; /* Rendering intent: 0=perceptual, 1=rel. colorimetric, 2=saturation, 3=abs. colorimetric */ - - /* - iCCP chunk: optional. May not appear at the same time as sRGB. - - LodePNG does not parse or use the ICC profile (except its color space header field for an edge case), a - separate library to handle the ICC data (not included in LodePNG) format is needed to use it for color - management and conversions. - - For encoding, if iCCP is present, gAMA and cHRM are recommended to be added as well with values that match the ICC - profile as closely as possible, if you wish to do this you should provide the correct values for gAMA and cHRM and - enable their '_defined' flags since LodePNG will not automatically compute them from the ICC profile. - - For encoding, the ICC profile is required by the PNG specification to be an "RGB" profile for non-gray - PNG color types and a "GRAY" profile for gray PNG color types. If you disable auto_convert, you must ensure - the ICC profile type matches your requested color type, else the encoder gives an error. If auto_convert is - enabled (the default), and the ICC profile is not a good match for the pixel data, this will result in an encoder - error if the pixel data has non-gray pixels for a GRAY profile, or a silent less-optimal compression of the pixel - data if the pixels could be encoded as grayscale but the ICC profile is RGB. - - To avoid this do not set an ICC profile in the image unless there is a good reason for it, and when doing so - make sure you compute it carefully to avoid the above problems. - */ - unsigned iccp_defined; /* Whether an iCCP chunk is present (0 = not present, 1 = present). */ - char* iccp_name; /* Null terminated string with profile name, 1-79 bytes */ - /* - The ICC profile in iccp_profile_size bytes. - Don't allocate this buffer yourself. Use the init/cleanup functions - correctly and use lodepng_set_icc and lodepng_clear_icc. - */ - unsigned char* iccp_profile; - unsigned iccp_profile_size; /* The size of iccp_profile in bytes */ - - /* End of color profile related chunks */ - - - /* - unknown chunks: chunks not known by LodePNG, passed on byte for byte. - - There are 3 buffers, one for each position in the PNG where unknown chunks can appear. - Each buffer contains all unknown chunks for that position consecutively. - The 3 positions are: - 0: between IHDR and PLTE, 1: between PLTE and IDAT, 2: between IDAT and IEND. - - For encoding, do not store critical chunks or known chunks that are enabled with a "_defined" flag - above in here, since the encoder will blindly follow this and could then encode an invalid PNG file - (such as one with two IHDR chunks or the disallowed combination of sRGB with iCCP). But do use - this if you wish to store an ancillary chunk that is not supported by LodePNG (such as sPLT or hIST), - or any non-standard PNG chunk. - - Do not allocate or traverse this data yourself. Use the chunk traversing functions declared - later, such as lodepng_chunk_next and lodepng_chunk_append, to read/write this struct. - */ - unsigned char* unknown_chunks_data[3]; - size_t unknown_chunks_size[3]; /*size in bytes of the unknown chunks, given for protection*/ -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -} LodePNGInfo; - -/*init, cleanup and copy functions to use with this struct*/ -void lodepng_info_init(LodePNGInfo* info); -void lodepng_info_cleanup(LodePNGInfo* info); -/*return value is error code (0 means no error)*/ -unsigned lodepng_info_copy(LodePNGInfo* dest, const LodePNGInfo* source); - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS -unsigned lodepng_add_text(LodePNGInfo* info, const char* key, const char* str); /*push back both texts at once*/ -void lodepng_clear_text(LodePNGInfo* info); /*use this to clear the texts again after you filled them in*/ - -unsigned lodepng_add_itext(LodePNGInfo* info, const char* key, const char* langtag, - const char* transkey, const char* str); /*push back the 4 texts of 1 chunk at once*/ -void lodepng_clear_itext(LodePNGInfo* info); /*use this to clear the itexts again after you filled them in*/ - -/*replaces if exists*/ -unsigned lodepng_set_icc(LodePNGInfo* info, const char* name, const unsigned char* profile, unsigned profile_size); -void lodepng_clear_icc(LodePNGInfo* info); /*use this to clear the texts again after you filled them in*/ -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -/* -Converts raw buffer from one color type to another color type, based on -LodePNGColorMode structs to describe the input and output color type. -See the reference manual at the end of this header file to see which color conversions are supported. -return value = LodePNG error code (0 if all went ok, an error if the conversion isn't supported) -The out buffer must have size (w * h * bpp + 7) / 8, where bpp is the bits per pixel -of the output color type (lodepng_get_bpp). -For < 8 bpp images, there should not be padding bits at the end of scanlines. -For 16-bit per channel colors, uses big endian format like PNG does. -Return value is LodePNG error code -*/ -unsigned lodepng_convert(unsigned char* out, const unsigned char* in, - const LodePNGColorMode* mode_out, const LodePNGColorMode* mode_in, - unsigned w, unsigned h); - -#ifdef LODEPNG_COMPILE_DECODER -/* -Settings for the decoder. This contains settings for the PNG and the Zlib -decoder, but not the Info settings from the Info structs. -*/ -typedef struct LodePNGDecoderSettings { - LodePNGDecompressSettings zlibsettings; /*in here is the setting to ignore Adler32 checksums*/ - - /* Check LodePNGDecompressSettings for more ignorable errors such as ignore_adler32 */ - unsigned ignore_crc; /*ignore CRC checksums*/ - unsigned ignore_critical; /*ignore unknown critical chunks*/ - unsigned ignore_end; /*ignore issues at end of file if possible (missing IEND chunk, too large chunk, ...)*/ - /* TODO: make a system involving warnings with levels and a strict mode instead. Other potentially recoverable - errors: srgb rendering intent value, size of content of ancillary chunks, more than 79 characters for some - strings, placement/combination rules for ancillary chunks, crc of unknown chunks, allowed characters - in string keys, etc... */ - - unsigned color_convert; /*whether to convert the PNG to the color type you want. Default: yes*/ - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - unsigned read_text_chunks; /*if false but remember_unknown_chunks is true, they're stored in the unknown chunks*/ - /*store all bytes from unknown chunks in the LodePNGInfo (off by default, useful for a png editor)*/ - unsigned remember_unknown_chunks; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -} LodePNGDecoderSettings; - -void lodepng_decoder_settings_init(LodePNGDecoderSettings* settings); -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_ENCODER -/*automatically use color type with less bits per pixel if losslessly possible. Default: AUTO*/ -typedef enum LodePNGFilterStrategy { - /*every filter at zero*/ - LFS_ZERO, - /*Use filter that gives minimum sum, as described in the official PNG filter heuristic.*/ - LFS_MINSUM, - /*Use the filter type that gives smallest Shannon entropy for this scanline. Depending - on the image, this is better or worse than minsum.*/ - LFS_ENTROPY, - /* - Brute-force-search PNG filters by compressing each filter for each scanline. - Experimental, very slow, and only rarely gives better compression than MINSUM. - */ - LFS_BRUTE_FORCE, - /*use predefined_filters buffer: you specify the filter type for each scanline*/ - LFS_PREDEFINED -} LodePNGFilterStrategy; - -/*Gives characteristics about the integer RGBA colors of the image (count, alpha channel usage, bit depth, ...), -which helps decide which color model to use for encoding. -Used internally by default if "auto_convert" is enabled. Public because it's useful for custom algorithms. -NOTE: This is not related to the ICC color profile, search "iccp_profile" instead to find the ICC/chromacity/... -fields in this header file.*/ -typedef struct LodePNGColorProfile { - unsigned colored; /*not grayscale*/ - unsigned key; /*image is not opaque and color key is possible instead of full alpha*/ - unsigned short key_r; /*key values, always as 16-bit, in 8-bit case the byte is duplicated, e.g. 65535 means 255*/ - unsigned short key_g; - unsigned short key_b; - unsigned alpha; /*image is not opaque and alpha channel or alpha palette required*/ - unsigned numcolors; /*amount of colors, up to 257. Not valid if bits == 16.*/ - unsigned char palette[1024]; /*Remembers up to the first 256 RGBA colors, in no particular order*/ - unsigned bits; /*bits per channel (not for palette). 1,2 or 4 for grayscale only. 16 if 16-bit per channel required.*/ - size_t numpixels; -} LodePNGColorProfile; - -void lodepng_color_profile_init(LodePNGColorProfile* profile); - -/*Get a LodePNGColorProfile of the image. The profile must already have been inited. -NOTE: This is not related to the ICC color profile, search "iccp_profile" instead to find the ICC/chromacity/... -fields in this header file.*/ -unsigned lodepng_get_color_profile(LodePNGColorProfile* profile, - const unsigned char* image, unsigned w, unsigned h, - const LodePNGColorMode* mode_in); -/*The function LodePNG uses internally to decide the PNG color with auto_convert. -Chooses an optimal color model, e.g. gray if only gray pixels, palette if < 256 colors, ...*/ -unsigned lodepng_auto_choose_color(LodePNGColorMode* mode_out, - const unsigned char* image, unsigned w, unsigned h, - const LodePNGColorMode* mode_in); - -/*Settings for the encoder.*/ -typedef struct LodePNGEncoderSettings { - LodePNGCompressSettings zlibsettings; /*settings for the zlib encoder, such as window size, ...*/ - - unsigned auto_convert; /*automatically choose output PNG color type. Default: true*/ - - /*If true, follows the official PNG heuristic: if the PNG uses a palette or lower than - 8 bit depth, set all filters to zero. Otherwise use the filter_strategy. Note that to - completely follow the official PNG heuristic, filter_palette_zero must be true and - filter_strategy must be LFS_MINSUM*/ - unsigned filter_palette_zero; - /*Which filter strategy to use when not using zeroes due to filter_palette_zero. - Set filter_palette_zero to 0 to ensure always using your chosen strategy. Default: LFS_MINSUM*/ - LodePNGFilterStrategy filter_strategy; - /*used if filter_strategy is LFS_PREDEFINED. In that case, this must point to a buffer with - the same length as the amount of scanlines in the image, and each value must <= 5. You - have to cleanup this buffer, LodePNG will never free it. Don't forget that filter_palette_zero - must be set to 0 to ensure this is also used on palette or low bitdepth images.*/ - const unsigned char* predefined_filters; - - /*force creating a PLTE chunk if colortype is 2 or 6 (= a suggested palette). - If colortype is 3, PLTE is _always_ created.*/ - unsigned force_palette; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - /*add LodePNG identifier and version as a text chunk, for debugging*/ - unsigned add_id; - /*encode text chunks as zTXt chunks instead of tEXt chunks, and use compression in iTXt chunks*/ - unsigned text_compression; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -} LodePNGEncoderSettings; - -void lodepng_encoder_settings_init(LodePNGEncoderSettings* settings); -#endif /*LODEPNG_COMPILE_ENCODER*/ - - -#if defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER) -/*The settings, state and information for extended encoding and decoding.*/ -typedef struct LodePNGState { -#ifdef LODEPNG_COMPILE_DECODER - LodePNGDecoderSettings decoder; /*the decoding settings*/ -#endif /*LODEPNG_COMPILE_DECODER*/ -#ifdef LODEPNG_COMPILE_ENCODER - LodePNGEncoderSettings encoder; /*the encoding settings*/ -#endif /*LODEPNG_COMPILE_ENCODER*/ - LodePNGColorMode info_raw; /*specifies the format in which you would like to get the raw pixel buffer*/ - LodePNGInfo info_png; /*info of the PNG image obtained after decoding*/ - unsigned error; -#ifdef LODEPNG_COMPILE_CPP - /* For the lodepng::State subclass. */ - virtual ~LodePNGState(){} -#endif -} LodePNGState; - -/*init, cleanup and copy functions to use with this struct*/ -void lodepng_state_init(LodePNGState* state); -void lodepng_state_cleanup(LodePNGState* state); -void lodepng_state_copy(LodePNGState* dest, const LodePNGState* source); -#endif /* defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER) */ - -#ifdef LODEPNG_COMPILE_DECODER -/* -Same as lodepng_decode_memory, but uses a LodePNGState to allow custom settings and -getting much more information about the PNG image and color mode. -*/ -unsigned lodepng_decode(unsigned char** out, unsigned* w, unsigned* h, - LodePNGState* state, - const unsigned char* in, size_t insize); - -/* -Read the PNG header, but not the actual data. This returns only the information -that is in the IHDR chunk of the PNG, such as width, height and color type. The -information is placed in the info_png field of the LodePNGState. -*/ -unsigned lodepng_inspect(unsigned* w, unsigned* h, - LodePNGState* state, - const unsigned char* in, size_t insize); -#endif /*LODEPNG_COMPILE_DECODER*/ - -/* -Reads one metadata chunk (other than IHDR) of the PNG file and outputs what it -read in the state. Returns error code on failure. -Use lodepng_inspect first with a new state, then e.g. lodepng_chunk_find_const -to find the desired chunk type, and if non null use lodepng_inspect_chunk (with -chunk_pointer - start_of_file as pos). -Supports most metadata chunks from the PNG standard (gAMA, bKGD, tEXt, ...). -Ignores unsupported, unknown, non-metadata or IHDR chunks (without error). -Requirements: &in[pos] must point to start of a chunk, must use regular -lodepng_inspect first since format of most other chunks depends on IHDR, and if -there is a PLTE chunk, that one must be inspected before tRNS or bKGD. -*/ -unsigned lodepng_inspect_chunk(LodePNGState* state, size_t pos, - const unsigned char* in, size_t insize); - -#ifdef LODEPNG_COMPILE_ENCODER -/*This function allocates the out buffer with standard malloc and stores the size in *outsize.*/ -unsigned lodepng_encode(unsigned char** out, size_t* outsize, - const unsigned char* image, unsigned w, unsigned h, - LodePNGState* state); -#endif /*LODEPNG_COMPILE_ENCODER*/ - -/* -The lodepng_chunk functions are normally not needed, except to traverse the -unknown chunks stored in the LodePNGInfo struct, or add new ones to it. -It also allows traversing the chunks of an encoded PNG file yourself. - -The chunk pointer always points to the beginning of the chunk itself, that is -the first byte of the 4 length bytes. - -In the PNG file format, chunks have the following format: --4 bytes length: length of the data of the chunk in bytes (chunk itself is 12 bytes longer) --4 bytes chunk type (ASCII a-z,A-Z only, see below) --length bytes of data (may be 0 bytes if length was 0) --4 bytes of CRC, computed on chunk name + data - -The first chunk starts at the 8th byte of the PNG file, the entire rest of the file -exists out of concatenated chunks with the above format. - -PNG standard chunk ASCII naming conventions: --First byte: uppercase = critical, lowercase = ancillary --Second byte: uppercase = public, lowercase = private --Third byte: must be uppercase --Fourth byte: uppercase = unsafe to copy, lowercase = safe to copy -*/ - -/* -Gets the length of the data of the chunk. Total chunk length has 12 bytes more. -There must be at least 4 bytes to read from. If the result value is too large, -it may be corrupt data. -*/ -unsigned lodepng_chunk_length(const unsigned char* chunk); - -/*puts the 4-byte type in null terminated string*/ -void lodepng_chunk_type(char type[5], const unsigned char* chunk); - -/*check if the type is the given type*/ -unsigned char lodepng_chunk_type_equals(const unsigned char* chunk, const char* type); - -/*0: it's one of the critical chunk types, 1: it's an ancillary chunk (see PNG standard)*/ -unsigned char lodepng_chunk_ancillary(const unsigned char* chunk); - -/*0: public, 1: private (see PNG standard)*/ -unsigned char lodepng_chunk_private(const unsigned char* chunk); - -/*0: the chunk is unsafe to copy, 1: the chunk is safe to copy (see PNG standard)*/ -unsigned char lodepng_chunk_safetocopy(const unsigned char* chunk); - -/*get pointer to the data of the chunk, where the input points to the header of the chunk*/ -unsigned char* lodepng_chunk_data(unsigned char* chunk); -const unsigned char* lodepng_chunk_data_const(const unsigned char* chunk); - -/*returns 0 if the crc is correct, 1 if it's incorrect (0 for OK as usual!)*/ -unsigned lodepng_chunk_check_crc(const unsigned char* chunk); - -/*generates the correct CRC from the data and puts it in the last 4 bytes of the chunk*/ -void lodepng_chunk_generate_crc(unsigned char* chunk); - -/* -Iterate to next chunks, allows iterating through all chunks of the PNG file. -Input must be at the beginning of a chunk (result of a previous lodepng_chunk_next call, -or the 8th byte of a PNG file which always has the first chunk), or alternatively may -point to the first byte of the PNG file (which is not a chunk but the magic header, the -function will then skip over it and return the first real chunk). -Expects at least 8 readable bytes of memory in the input pointer. -Will output pointer to the start of the next chunk or the end of the file if there -is no more chunk after this. Start this process at the 8th byte of the PNG file. -In a non-corrupt PNG file, the last chunk should have name "IEND". -*/ -unsigned char* lodepng_chunk_next(unsigned char* chunk); -const unsigned char* lodepng_chunk_next_const(const unsigned char* chunk); - -/*Finds the first chunk with the given type in the range [chunk, end), or returns NULL if not found.*/ -unsigned char* lodepng_chunk_find(unsigned char* chunk, const unsigned char* end, const char type[5]); -const unsigned char* lodepng_chunk_find_const(const unsigned char* chunk, const unsigned char* end, const char type[5]); - -/* -Appends chunk to the data in out. The given chunk should already have its chunk header. -The out variable and outlength are updated to reflect the new reallocated buffer. -Returns error code (0 if it went ok) -*/ -unsigned lodepng_chunk_append(unsigned char** out, size_t* outlength, const unsigned char* chunk); - -/* -Appends new chunk to out. The chunk to append is given by giving its length, type -and data separately. The type is a 4-letter string. -The out variable and outlength are updated to reflect the new reallocated buffer. -Returne error code (0 if it went ok) -*/ -unsigned lodepng_chunk_create(unsigned char** out, size_t* outlength, unsigned length, - const char* type, const unsigned char* data); - - -/*Calculate CRC32 of buffer*/ -unsigned lodepng_crc32(const unsigned char* buf, size_t len); -#endif /*LODEPNG_COMPILE_PNG*/ - - -#ifdef LODEPNG_COMPILE_ZLIB -/* -This zlib part can be used independently to zlib compress and decompress a -buffer. It cannot be used to create gzip files however, and it only supports the -part of zlib that is required for PNG, it does not support dictionaries. -*/ - -#ifdef LODEPNG_COMPILE_DECODER -/*Inflate a buffer. Inflate is the decompression step of deflate. Out buffer must be freed after use.*/ -unsigned lodepng_inflate(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGDecompressSettings* settings); - -/* -Decompresses Zlib data. Reallocates the out buffer and appends the data. The -data must be according to the zlib specification. -Either, *out must be NULL and *outsize must be 0, or, *out must be a valid -buffer and *outsize its size in bytes. out must be freed by user after usage. -*/ -unsigned lodepng_zlib_decompress(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGDecompressSettings* settings); -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_ENCODER -/* -Compresses data with Zlib. Reallocates the out buffer and appends the data. -Zlib adds a small header and trailer around the deflate data. -The data is output in the format of the zlib specification. -Either, *out must be NULL and *outsize must be 0, or, *out must be a valid -buffer and *outsize its size in bytes. out must be freed by user after usage. -*/ -unsigned lodepng_zlib_compress(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGCompressSettings* settings); - -/* -Find length-limited Huffman code for given frequencies. This function is in the -public interface only for tests, it's used internally by lodepng_deflate. -*/ -unsigned lodepng_huffman_code_lengths(unsigned* lengths, const unsigned* frequencies, - size_t numcodes, unsigned maxbitlen); - -/*Compress a buffer with deflate. See RFC 1951. Out buffer must be freed after use.*/ -unsigned lodepng_deflate(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGCompressSettings* settings); - -#endif /*LODEPNG_COMPILE_ENCODER*/ -#endif /*LODEPNG_COMPILE_ZLIB*/ - -#ifdef LODEPNG_COMPILE_DISK -/* -Load a file from disk into buffer. The function allocates the out buffer, and -after usage you should free it. -out: output parameter, contains pointer to loaded buffer. -outsize: output parameter, size of the allocated out buffer -filename: the path to the file to load -return value: error code (0 means ok) -*/ -unsigned lodepng_load_file(unsigned char** out, size_t* outsize, const char* filename); - -/* -Save a file from buffer to disk. Warning, if it exists, this function overwrites -the file without warning! -buffer: the buffer to write -buffersize: size of the buffer to write -filename: the path to the file to save to -return value: error code (0 means ok) -*/ -unsigned lodepng_save_file(const unsigned char* buffer, size_t buffersize, const char* filename); -#endif /*LODEPNG_COMPILE_DISK*/ - -#ifdef LODEPNG_COMPILE_CPP -/* The LodePNG C++ wrapper uses std::vectors instead of manually allocated memory buffers. */ -namespace lodepng { -#ifdef LODEPNG_COMPILE_PNG -class State : public LodePNGState { - public: - State(); - State(const State& other); - virtual ~State(); - State& operator=(const State& other); -}; - -#ifdef LODEPNG_COMPILE_DECODER -/* Same as other lodepng::decode, but using a State for more settings and information. */ -unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, - State& state, - const unsigned char* in, size_t insize); -unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, - State& state, - const std::vector<unsigned char>& in); -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_ENCODER -/* Same as other lodepng::encode, but using a State for more settings and information. */ -unsigned encode(std::vector<unsigned char>& out, - const unsigned char* in, unsigned w, unsigned h, - State& state); -unsigned encode(std::vector<unsigned char>& out, - const std::vector<unsigned char>& in, unsigned w, unsigned h, - State& state); -#endif /*LODEPNG_COMPILE_ENCODER*/ - -#ifdef LODEPNG_COMPILE_DISK -/* -Load a file from disk into an std::vector. -return value: error code (0 means ok) -*/ -unsigned load_file(std::vector<unsigned char>& buffer, const std::string& filename); - -/* -Save the binary data in an std::vector to a file on disk. The file is overwritten -without warning. -*/ -unsigned save_file(const std::vector<unsigned char>& buffer, const std::string& filename); -#endif /* LODEPNG_COMPILE_DISK */ -#endif /* LODEPNG_COMPILE_PNG */ - -#ifdef LODEPNG_COMPILE_ZLIB -#ifdef LODEPNG_COMPILE_DECODER -/* Zlib-decompress an unsigned char buffer */ -unsigned decompress(std::vector<unsigned char>& out, const unsigned char* in, size_t insize, - const LodePNGDecompressSettings& settings = lodepng_default_decompress_settings); - -/* Zlib-decompress an std::vector */ -unsigned decompress(std::vector<unsigned char>& out, const std::vector<unsigned char>& in, - const LodePNGDecompressSettings& settings = lodepng_default_decompress_settings); -#endif /* LODEPNG_COMPILE_DECODER */ - -#ifdef LODEPNG_COMPILE_ENCODER -/* Zlib-compress an unsigned char buffer */ -unsigned compress(std::vector<unsigned char>& out, const unsigned char* in, size_t insize, - const LodePNGCompressSettings& settings = lodepng_default_compress_settings); - -/* Zlib-compress an std::vector */ -unsigned compress(std::vector<unsigned char>& out, const std::vector<unsigned char>& in, - const LodePNGCompressSettings& settings = lodepng_default_compress_settings); -#endif /* LODEPNG_COMPILE_ENCODER */ -#endif /* LODEPNG_COMPILE_ZLIB */ -} /* namespace lodepng */ -#endif /*LODEPNG_COMPILE_CPP*/ - -/* -TODO: -[.] test if there are no memory leaks or security exploits - done a lot but needs to be checked often -[.] check compatibility with various compilers - done but needs to be redone for every newer version -[X] converting color to 16-bit per channel types -[X] support color profile chunk types (but never let them touch RGB values by default) -[ ] support all public PNG chunk types (almost done except sBIT, sPLT and hIST) -[ ] make sure encoder generates no chunks with size > (2^31)-1 -[ ] partial decoding (stream processing) -[X] let the "isFullyOpaque" function check color keys and transparent palettes too -[X] better name for the variables "codes", "codesD", "codelengthcodes", "clcl" and "lldl" -[ ] allow treating some errors like warnings, when image is recoverable (e.g. 69, 57, 58) -[ ] make warnings like: oob palette, checksum fail, data after iend, wrong/unknown crit chunk, no null terminator in text, ... -[ ] error messages with line numbers (and version) -[ ] errors in state instead of as return code? -[ ] new errors/warnings like suspiciously big decompressed ztxt or iccp chunk -[ ] let the C++ wrapper catch exceptions coming from the standard library and return LodePNG error codes -[ ] allow user to provide custom color conversion functions, e.g. for premultiplied alpha, padding bits or not, ... -[ ] allow user to give data (void*) to custom allocator -[ ] provide alternatives for C library functions not present on some platforms (memcpy, ...) -[ ] rename "grey" to "gray" everywhere since "color" also uses US spelling (keep "grey" copies for backwards compatibility) -*/ - -#endif /*LODEPNG_H inclusion guard*/ - -/* -LodePNG Documentation ---------------------- - -0. table of contents --------------------- - - 1. about - 1.1. supported features - 1.2. features not supported - 2. C and C++ version - 3. security - 4. decoding - 5. encoding - 6. color conversions - 6.1. PNG color types - 6.2. color conversions - 6.3. padding bits - 6.4. A note about 16-bits per channel and endianness - 7. error values - 8. chunks and PNG editing - 9. compiler support - 10. examples - 10.1. decoder C++ example - 10.2. decoder C example - 11. state settings reference - 12. changes - 13. contact information - - -1. about --------- - -PNG is a file format to store raster images losslessly with good compression, -supporting different color types and alpha channel. - -LodePNG is a PNG codec according to the Portable Network Graphics (PNG) -Specification (Second Edition) - W3C Recommendation 10 November 2003. - -The specifications used are: - -*) Portable Network Graphics (PNG) Specification (Second Edition): - http://www.w3.org/TR/2003/REC-PNG-20031110 -*) RFC 1950 ZLIB Compressed Data Format version 3.3: - http://www.gzip.org/zlib/rfc-zlib.html -*) RFC 1951 DEFLATE Compressed Data Format Specification ver 1.3: - http://www.gzip.org/zlib/rfc-deflate.html - -The most recent version of LodePNG can currently be found at -http://lodev.org/lodepng/ - -LodePNG works both in C (ISO C90) and C++, with a C++ wrapper that adds -extra functionality. - -LodePNG exists out of two files: --lodepng.h: the header file for both C and C++ --lodepng.c(pp): give it the name lodepng.c or lodepng.cpp (or .cc) depending on your usage - -If you want to start using LodePNG right away without reading this doc, get the -examples from the LodePNG website to see how to use it in code, or check the -smaller examples in chapter 13 here. - -LodePNG is simple but only supports the basic requirements. To achieve -simplicity, the following design choices were made: There are no dependencies -on any external library. There are functions to decode and encode a PNG with -a single function call, and extended versions of these functions taking a -LodePNGState struct allowing to specify or get more information. By default -the colors of the raw image are always RGB or RGBA, no matter what color type -the PNG file uses. To read and write files, there are simple functions to -convert the files to/from buffers in memory. - -This all makes LodePNG suitable for loading textures in games, demos and small -programs, ... It's less suitable for full fledged image editors, loading PNGs -over network (it requires all the image data to be available before decoding can -begin), life-critical systems, ... - -1.1. supported features ------------------------ - -The following features are supported by the decoder: - -*) decoding of PNGs with any color type, bit depth and interlace mode, to a 24- or 32-bit color raw image, - or the same color type as the PNG -*) encoding of PNGs, from any raw image to 24- or 32-bit color, or the same color type as the raw image -*) Adam7 interlace and deinterlace for any color type -*) loading the image from harddisk or decoding it from a buffer from other sources than harddisk -*) support for alpha channels, including RGBA color model, translucent palettes and color keying -*) zlib decompression (inflate) -*) zlib compression (deflate) -*) CRC32 and ADLER32 checksums -*) colorimetric color profile conversions: currently experimentally available in lodepng_util.cpp only, - plus alternatively ability to pass on chroma/gamma/ICC profile information to other color management system. -*) handling of unknown chunks, allowing making a PNG editor that stores custom and unknown chunks. -*) the following chunks are supported by both encoder and decoder: - IHDR: header information - PLTE: color palette - IDAT: pixel data - IEND: the final chunk - tRNS: transparency for palettized images - tEXt: textual information - zTXt: compressed textual information - iTXt: international textual information - bKGD: suggested background color - pHYs: physical dimensions - tIME: modification time - cHRM: RGB chromaticities - gAMA: RGB gamma correction - iCCP: ICC color profile - sRGB: rendering intent - -1.2. features not supported ---------------------------- - -The following features are _not_ supported: - -*) some features needed to make a conformant PNG-Editor might be still missing. -*) partial loading/stream processing. All data must be available and is processed in one call. -*) The following public chunks are not (yet) supported but treated as unknown chunks by LodePNG: - sBIT - hIST - sPLT - - -2. C and C++ version --------------------- - -The C version uses buffers allocated with alloc that you need to free() -yourself. You need to use init and cleanup functions for each struct whenever -using a struct from the C version to avoid exploits and memory leaks. - -The C++ version has extra functions with std::vectors in the interface and the -lodepng::State class which is a LodePNGState with constructor and destructor. - -These files work without modification for both C and C++ compilers because all -the additional C++ code is in "#ifdef __cplusplus" blocks that make C-compilers -ignore it, and the C code is made to compile both with strict ISO C90 and C++. - -To use the C++ version, you need to rename the source file to lodepng.cpp -(instead of lodepng.c), and compile it with a C++ compiler. - -To use the C version, you need to rename the source file to lodepng.c (instead -of lodepng.cpp), and compile it with a C compiler. - - -3. Security ------------ - -Even if carefully designed, it's always possible that LodePNG contains possible -exploits. If you discover one, please let me know, and it will be fixed. - -When using LodePNG, care has to be taken with the C version of LodePNG, as well -as the C-style structs when working with C++. The following conventions are used -for all C-style structs: - --if a struct has a corresponding init function, always call the init function when making a new one --if a struct has a corresponding cleanup function, call it before the struct disappears to avoid memory leaks --if a struct has a corresponding copy function, use the copy function instead of "=". - The destination must also be inited already. - - -4. Decoding ------------ - -Decoding converts a PNG compressed image to a raw pixel buffer. - -Most documentation on using the decoder is at its declarations in the header -above. For C, simple decoding can be done with functions such as -lodepng_decode32, and more advanced decoding can be done with the struct -LodePNGState and lodepng_decode. For C++, all decoding can be done with the -various lodepng::decode functions, and lodepng::State can be used for advanced -features. - -When using the LodePNGState, it uses the following fields for decoding: -*) LodePNGInfo info_png: it stores extra information about the PNG (the input) in here -*) LodePNGColorMode info_raw: here you can say what color mode of the raw image (the output) you want to get -*) LodePNGDecoderSettings decoder: you can specify a few extra settings for the decoder to use - -LodePNGInfo info_png --------------------- - -After decoding, this contains extra information of the PNG image, except the actual -pixels, width and height because these are already gotten directly from the decoder -functions. - -It contains for example the original color type of the PNG image, text comments, -suggested background color, etc... More details about the LodePNGInfo struct are -at its declaration documentation. - -LodePNGColorMode info_raw -------------------------- - -When decoding, here you can specify which color type you want -the resulting raw image to be. If this is different from the colortype of the -PNG, then the decoder will automatically convert the result. This conversion -always works, except if you want it to convert a color PNG to grayscale or to -a palette with missing colors. - -By default, 32-bit color is used for the result. - -LodePNGDecoderSettings decoder ------------------------------- - -The settings can be used to ignore the errors created by invalid CRC and Adler32 -chunks, and to disable the decoding of tEXt chunks. - -There's also a setting color_convert, true by default. If false, no conversion -is done, the resulting data will be as it was in the PNG (after decompression) -and you'll have to puzzle the colors of the pixels together yourself using the -color type information in the LodePNGInfo. - - -5. Encoding ------------ - -Encoding converts a raw pixel buffer to a PNG compressed image. - -Most documentation on using the encoder is at its declarations in the header -above. For C, simple encoding can be done with functions such as -lodepng_encode32, and more advanced decoding can be done with the struct -LodePNGState and lodepng_encode. For C++, all encoding can be done with the -various lodepng::encode functions, and lodepng::State can be used for advanced -features. - -Like the decoder, the encoder can also give errors. However it gives less errors -since the encoder input is trusted, the decoder input (a PNG image that could -be forged by anyone) is not trusted. - -When using the LodePNGState, it uses the following fields for encoding: -*) LodePNGInfo info_png: here you specify how you want the PNG (the output) to be. -*) LodePNGColorMode info_raw: here you say what color type of the raw image (the input) has -*) LodePNGEncoderSettings encoder: you can specify a few settings for the encoder to use - -LodePNGInfo info_png --------------------- - -When encoding, you use this the opposite way as when decoding: for encoding, -you fill in the values you want the PNG to have before encoding. By default it's -not needed to specify a color type for the PNG since it's automatically chosen, -but it's possible to choose it yourself given the right settings. - -The encoder will not always exactly match the LodePNGInfo struct you give, -it tries as close as possible. Some things are ignored by the encoder. The -encoder uses, for example, the following settings from it when applicable: -colortype and bitdepth, text chunks, time chunk, the color key, the palette, the -background color, the interlace method, unknown chunks, ... - -When encoding to a PNG with colortype 3, the encoder will generate a PLTE chunk. -If the palette contains any colors for which the alpha channel is not 255 (so -there are translucent colors in the palette), it'll add a tRNS chunk. - -LodePNGColorMode info_raw -------------------------- - -You specify the color type of the raw image that you give to the input here, -including a possible transparent color key and palette you happen to be using in -your raw image data. - -By default, 32-bit color is assumed, meaning your input has to be in RGBA -format with 4 bytes (unsigned chars) per pixel. - -LodePNGEncoderSettings encoder ------------------------------- - -The following settings are supported (some are in sub-structs): -*) auto_convert: when this option is enabled, the encoder will -automatically choose the smallest possible color mode (including color key) that -can encode the colors of all pixels without information loss. -*) btype: the block type for LZ77. 0 = uncompressed, 1 = fixed huffman tree, - 2 = dynamic huffman tree (best compression). Should be 2 for proper - compression. -*) use_lz77: whether or not to use LZ77 for compressed block types. Should be - true for proper compression. -*) windowsize: the window size used by the LZ77 encoder (1 - 32768). Has value - 2048 by default, but can be set to 32768 for better, but slow, compression. -*) force_palette: if colortype is 2 or 6, you can make the encoder write a PLTE - chunk if force_palette is true. This can used as suggested palette to convert - to by viewers that don't support more than 256 colors (if those still exist) -*) add_id: add text chunk "Encoder: LodePNG <version>" to the image. -*) text_compression: default 1. If 1, it'll store texts as zTXt instead of tEXt chunks. - zTXt chunks use zlib compression on the text. This gives a smaller result on - large texts but a larger result on small texts (such as a single program name). - It's all tEXt or all zTXt though, there's no separate setting per text yet. - - -6. color conversions --------------------- - -An important thing to note about LodePNG, is that the color type of the PNG, and -the color type of the raw image, are completely independent. By default, when -you decode a PNG, you get the result as a raw image in the color type you want, -no matter whether the PNG was encoded with a palette, grayscale or RGBA color. -And if you encode an image, by default LodePNG will automatically choose the PNG -color type that gives good compression based on the values of colors and amount -of colors in the image. It can be configured to let you control it instead as -well, though. - -To be able to do this, LodePNG does conversions from one color mode to another. -It can convert from almost any color type to any other color type, except the -following conversions: RGB to grayscale is not supported, and converting to a -palette when the palette doesn't have a required color is not supported. This is -not supported on purpose: this is information loss which requires a color -reduction algorithm that is beyong the scope of a PNG encoder (yes, RGB to gray -is easy, but there are multiple ways if you want to give some channels more -weight). - -By default, when decoding, you get the raw image in 32-bit RGBA or 24-bit RGB -color, no matter what color type the PNG has. And by default when encoding, -LodePNG automatically picks the best color model for the output PNG, and expects -the input image to be 32-bit RGBA or 24-bit RGB. So, unless you want to control -the color format of the images yourself, you can skip this chapter. - -6.1. PNG color types --------------------- - -A PNG image can have many color types, ranging from 1-bit color to 64-bit color, -as well as palettized color modes. After the zlib decompression and unfiltering -in the PNG image is done, the raw pixel data will have that color type and thus -a certain amount of bits per pixel. If you want the output raw image after -decoding to have another color type, a conversion is done by LodePNG. - -The PNG specification gives the following color types: - -0: grayscale, bit depths 1, 2, 4, 8, 16 -2: RGB, bit depths 8 and 16 -3: palette, bit depths 1, 2, 4 and 8 -4: grayscale with alpha, bit depths 8 and 16 -6: RGBA, bit depths 8 and 16 - -Bit depth is the amount of bits per pixel per color channel. So the total amount -of bits per pixel is: amount of channels * bitdepth. - -6.2. color conversions ----------------------- - -As explained in the sections about the encoder and decoder, you can specify -color types and bit depths in info_png and info_raw to change the default -behaviour. - -If, when decoding, you want the raw image to be something else than the default, -you need to set the color type and bit depth you want in the LodePNGColorMode, -or the parameters colortype and bitdepth of the simple decoding function. - -If, when encoding, you use another color type than the default in the raw input -image, you need to specify its color type and bit depth in the LodePNGColorMode -of the raw image, or use the parameters colortype and bitdepth of the simple -encoding function. - -If, when encoding, you don't want LodePNG to choose the output PNG color type -but control it yourself, you need to set auto_convert in the encoder settings -to false, and specify the color type you want in the LodePNGInfo of the -encoder (including palette: it can generate a palette if auto_convert is true, -otherwise not). - -If the input and output color type differ (whether user chosen or auto chosen), -LodePNG will do a color conversion, which follows the rules below, and may -sometimes result in an error. - -To avoid some confusion: --the decoder converts from PNG to raw image --the encoder converts from raw image to PNG --the colortype and bitdepth in LodePNGColorMode info_raw, are those of the raw image --the colortype and bitdepth in the color field of LodePNGInfo info_png, are those of the PNG --when encoding, the color type in LodePNGInfo is ignored if auto_convert - is enabled, it is automatically generated instead --when decoding, the color type in LodePNGInfo is set by the decoder to that of the original - PNG image, but it can be ignored since the raw image has the color type you requested instead --if the color type of the LodePNGColorMode and PNG image aren't the same, a conversion - between the color types is done if the color types are supported. If it is not - supported, an error is returned. If the types are the same, no conversion is done. --even though some conversions aren't supported, LodePNG supports loading PNGs from any - colortype and saving PNGs to any colortype, sometimes it just requires preparing - the raw image correctly before encoding. --both encoder and decoder use the same color converter. - -The function lodepng_convert does the color conversion. It is available in the -interface but normally isn't needed since the encoder and decoder already call -it. - -Non supported color conversions: --color to grayscale when non-gray pixels are present: no error is thrown, but -the result will look ugly because only the red channel is taken (it assumes all -three channels are the same in this case so ignores green and blue). The reason -no error is given is to allow converting from three-channel grayscale images to -one-channel even if there are numerical imprecisions. --anything to palette when the palette does not have an exact match for a from-color -in it: in this case an error is thrown - -Supported color conversions: --anything to 8-bit RGB, 8-bit RGBA, 16-bit RGB, 16-bit RGBA --any gray or gray+alpha, to gray or gray+alpha --anything to a palette, as long as the palette has the requested colors in it --removing alpha channel --higher to smaller bitdepth, and vice versa - -If you want no color conversion to be done (e.g. for speed or control): --In the encoder, you can make it save a PNG with any color type by giving the -raw color mode and LodePNGInfo the same color mode, and setting auto_convert to -false. --In the decoder, you can make it store the pixel data in the same color type -as the PNG has, by setting the color_convert setting to false. Settings in -info_raw are then ignored. - -6.3. padding bits ------------------ - -In the PNG file format, if a less than 8-bit per pixel color type is used and the scanlines -have a bit amount that isn't a multiple of 8, then padding bits are used so that each -scanline starts at a fresh byte. But that is NOT true for the LodePNG raw input and output. -The raw input image you give to the encoder, and the raw output image you get from the decoder -will NOT have these padding bits, e.g. in the case of a 1-bit image with a width -of 7 pixels, the first pixel of the second scanline will the the 8th bit of the first byte, -not the first bit of a new byte. - -6.4. A note about 16-bits per channel and endianness ----------------------------------------------------- - -LodePNG uses unsigned char arrays for 16-bit per channel colors too, just like -for any other color format. The 16-bit values are stored in big endian (most -significant byte first) in these arrays. This is the opposite order of the -little endian used by x86 CPU's. - -LodePNG always uses big endian because the PNG file format does so internally. -Conversions to other formats than PNG uses internally are not supported by -LodePNG on purpose, there are myriads of formats, including endianness of 16-bit -colors, the order in which you store R, G, B and A, and so on. Supporting and -converting to/from all that is outside the scope of LodePNG. - -This may mean that, depending on your use case, you may want to convert the big -endian output of LodePNG to little endian with a for loop. This is certainly not -always needed, many applications and libraries support big endian 16-bit colors -anyway, but it means you cannot simply cast the unsigned char* buffer to an -unsigned short* buffer on x86 CPUs. - - -7. error values ---------------- - -All functions in LodePNG that return an error code, return 0 if everything went -OK, or a non-zero code if there was an error. - -The meaning of the LodePNG error values can be retrieved with the function -lodepng_error_text: given the numerical error code, it returns a description -of the error in English as a string. - -Check the implementation of lodepng_error_text to see the meaning of each code. - - -8. chunks and PNG editing -------------------------- - -If you want to add extra chunks to a PNG you encode, or use LodePNG for a PNG -editor that should follow the rules about handling of unknown chunks, or if your -program is able to read other types of chunks than the ones handled by LodePNG, -then that's possible with the chunk functions of LodePNG. - -A PNG chunk has the following layout: - -4 bytes length -4 bytes type name -length bytes data -4 bytes CRC - -8.1. iterating through chunks ------------------------------ - -If you have a buffer containing the PNG image data, then the first chunk (the -IHDR chunk) starts at byte number 8 of that buffer. The first 8 bytes are the -signature of the PNG and are not part of a chunk. But if you start at byte 8 -then you have a chunk, and can check the following things of it. - -NOTE: none of these functions check for memory buffer boundaries. To avoid -exploits, always make sure the buffer contains all the data of the chunks. -When using lodepng_chunk_next, make sure the returned value is within the -allocated memory. - -unsigned lodepng_chunk_length(const unsigned char* chunk): - -Get the length of the chunk's data. The total chunk length is this length + 12. - -void lodepng_chunk_type(char type[5], const unsigned char* chunk): -unsigned char lodepng_chunk_type_equals(const unsigned char* chunk, const char* type): - -Get the type of the chunk or compare if it's a certain type - -unsigned char lodepng_chunk_critical(const unsigned char* chunk): -unsigned char lodepng_chunk_private(const unsigned char* chunk): -unsigned char lodepng_chunk_safetocopy(const unsigned char* chunk): - -Check if the chunk is critical in the PNG standard (only IHDR, PLTE, IDAT and IEND are). -Check if the chunk is private (public chunks are part of the standard, private ones not). -Check if the chunk is safe to copy. If it's not, then, when modifying data in a critical -chunk, unsafe to copy chunks of the old image may NOT be saved in the new one if your -program doesn't handle that type of unknown chunk. - -unsigned char* lodepng_chunk_data(unsigned char* chunk): -const unsigned char* lodepng_chunk_data_const(const unsigned char* chunk): - -Get a pointer to the start of the data of the chunk. - -unsigned lodepng_chunk_check_crc(const unsigned char* chunk): -void lodepng_chunk_generate_crc(unsigned char* chunk): - -Check if the crc is correct or generate a correct one. - -unsigned char* lodepng_chunk_next(unsigned char* chunk): -const unsigned char* lodepng_chunk_next_const(const unsigned char* chunk): - -Iterate to the next chunk. This works if you have a buffer with consecutive chunks. Note that these -functions do no boundary checking of the allocated data whatsoever, so make sure there is enough -data available in the buffer to be able to go to the next chunk. - -unsigned lodepng_chunk_append(unsigned char** out, size_t* outlength, const unsigned char* chunk): -unsigned lodepng_chunk_create(unsigned char** out, size_t* outlength, unsigned length, - const char* type, const unsigned char* data): - -These functions are used to create new chunks that are appended to the data in *out that has -length *outlength. The append function appends an existing chunk to the new data. The create -function creates a new chunk with the given parameters and appends it. Type is the 4-letter -name of the chunk. - -8.2. chunks in info_png ------------------------ - -The LodePNGInfo struct contains fields with the unknown chunk in it. It has 3 -buffers (each with size) to contain 3 types of unknown chunks: -the ones that come before the PLTE chunk, the ones that come between the PLTE -and the IDAT chunks, and the ones that come after the IDAT chunks. -It's necessary to make the distionction between these 3 cases because the PNG -standard forces to keep the ordering of unknown chunks compared to the critical -chunks, but does not force any other ordering rules. - -info_png.unknown_chunks_data[0] is the chunks before PLTE -info_png.unknown_chunks_data[1] is the chunks after PLTE, before IDAT -info_png.unknown_chunks_data[2] is the chunks after IDAT - -The chunks in these 3 buffers can be iterated through and read by using the same -way described in the previous subchapter. - -When using the decoder to decode a PNG, you can make it store all unknown chunks -if you set the option settings.remember_unknown_chunks to 1. By default, this -option is off (0). - -The encoder will always encode unknown chunks that are stored in the info_png. -If you need it to add a particular chunk that isn't known by LodePNG, you can -use lodepng_chunk_append or lodepng_chunk_create to the chunk data in -info_png.unknown_chunks_data[x]. - -Chunks that are known by LodePNG should not be added in that way. E.g. to make -LodePNG add a bKGD chunk, set background_defined to true and add the correct -parameters there instead. - - -9. compiler support -------------------- - -No libraries other than the current standard C library are needed to compile -LodePNG. For the C++ version, only the standard C++ library is needed on top. -Add the files lodepng.c(pp) and lodepng.h to your project, include -lodepng.h where needed, and your program can read/write PNG files. - -It is compatible with C90 and up, and C++03 and up. - -If performance is important, use optimization when compiling! For both the -encoder and decoder, this makes a large difference. - -Make sure that LodePNG is compiled with the same compiler of the same version -and with the same settings as the rest of the program, or the interfaces with -std::vectors and std::strings in C++ can be incompatible. - -CHAR_BITS must be 8 or higher, because LodePNG uses unsigned chars for octets. - -*) gcc and g++ - -LodePNG is developed in gcc so this compiler is natively supported. It gives no -warnings with compiler options "-Wall -Wextra -pedantic -ansi", with gcc and g++ -version 4.7.1 on Linux, 32-bit and 64-bit. - -*) Clang - -Fully supported and warning-free. - -*) Mingw - -The Mingw compiler (a port of gcc for Windows) should be fully supported by -LodePNG. - -*) Visual Studio and Visual C++ Express Edition - -LodePNG should be warning-free with warning level W4. Two warnings were disabled -with pragmas though: warning 4244 about implicit conversions, and warning 4996 -where it wants to use a non-standard function fopen_s instead of the standard C -fopen. - -Visual Studio may want "stdafx.h" files to be included in each source file and -give an error "unexpected end of file while looking for precompiled header". -This is not standard C++ and will not be added to the stock LodePNG. You can -disable it for lodepng.cpp only by right clicking it, Properties, C/C++, -Precompiled Headers, and set it to Not Using Precompiled Headers there. - -NOTE: Modern versions of VS should be fully supported, but old versions, e.g. -VS6, are not guaranteed to work. - -*) Compilers on Macintosh - -LodePNG has been reported to work both with gcc and LLVM for Macintosh, both for -C and C++. - -*) Other Compilers - -If you encounter problems on any compilers, feel free to let me know and I may -try to fix it if the compiler is modern and standards complient. - - -10. examples ------------- - -This decoder example shows the most basic usage of LodePNG. More complex -examples can be found on the LodePNG website. - -10.1. decoder C++ example -------------------------- - -#include "lodepng.h" -#include <iostream> - -int main(int argc, char *argv[]) { - const char* filename = argc > 1 ? argv[1] : "test.png"; - - //load and decode - std::vector<unsigned char> image; - unsigned width, height; - unsigned error = lodepng::decode(image, width, height, filename); - - //if there's an error, display it - if(error) std::cout << "decoder error " << error << ": " << lodepng_error_text(error) << std::endl; - - //the pixels are now in the vector "image", 4 bytes per pixel, ordered RGBARGBA..., use it as texture, draw it, ... -} - -10.2. decoder C example ------------------------ - -#include "lodepng.h" - -int main(int argc, char *argv[]) { - unsigned error; - unsigned char* image; - size_t width, height; - const char* filename = argc > 1 ? argv[1] : "test.png"; - - error = lodepng_decode32_file(&image, &width, &height, filename); - - if(error) printf("decoder error %u: %s\n", error, lodepng_error_text(error)); - - / * use image here * / - - free(image); - return 0; -} - -11. state settings reference ----------------------------- - -A quick reference of some settings to set on the LodePNGState - -For decoding: - -state.decoder.zlibsettings.ignore_adler32: ignore ADLER32 checksums -state.decoder.zlibsettings.custom_...: use custom inflate function -state.decoder.ignore_crc: ignore CRC checksums -state.decoder.ignore_critical: ignore unknown critical chunks -state.decoder.ignore_end: ignore missing IEND chunk. May fail if this corruption causes other errors -state.decoder.color_convert: convert internal PNG color to chosen one -state.decoder.read_text_chunks: whether to read in text metadata chunks -state.decoder.remember_unknown_chunks: whether to read in unknown chunks -state.info_raw.colortype: desired color type for decoded image -state.info_raw.bitdepth: desired bit depth for decoded image -state.info_raw....: more color settings, see struct LodePNGColorMode -state.info_png....: no settings for decoder but ouput, see struct LodePNGInfo - -For encoding: - -state.encoder.zlibsettings.btype: disable compression by setting it to 0 -state.encoder.zlibsettings.use_lz77: use LZ77 in compression -state.encoder.zlibsettings.windowsize: tweak LZ77 windowsize -state.encoder.zlibsettings.minmatch: tweak min LZ77 length to match -state.encoder.zlibsettings.nicematch: tweak LZ77 match where to stop searching -state.encoder.zlibsettings.lazymatching: try one more LZ77 matching -state.encoder.zlibsettings.custom_...: use custom deflate function -state.encoder.auto_convert: choose optimal PNG color type, if 0 uses info_png -state.encoder.filter_palette_zero: PNG filter strategy for palette -state.encoder.filter_strategy: PNG filter strategy to encode with -state.encoder.force_palette: add palette even if not encoding to one -state.encoder.add_id: add LodePNG identifier and version as a text chunk -state.encoder.text_compression: use compressed text chunks for metadata -state.info_raw.colortype: color type of raw input image you provide -state.info_raw.bitdepth: bit depth of raw input image you provide -state.info_raw: more color settings, see struct LodePNGColorMode -state.info_png.color.colortype: desired color type if auto_convert is false -state.info_png.color.bitdepth: desired bit depth if auto_convert is false -state.info_png.color....: more color settings, see struct LodePNGColorMode -state.info_png....: more PNG related settings, see struct LodePNGInfo - - -12. changes ------------ - -The version number of LodePNG is the date of the change given in the format -yyyymmdd. - -Some changes aren't backwards compatible. Those are indicated with a (!) -symbol. - -*) 30 dec 2018: code style changes only: removed newlines before opening braces. -*) 10 sep 2018: added way to inspect metadata chunks without full decoding. -*) 19 aug 2018 (!): fixed color mode bKGD is encoded with and made it use - palette index in case of palette. -*) 10 aug 2018 (!): added support for gAMA, cHRM, sRGB and iCCP chunks. This - change is backwards compatible unless you relied on unknown_chunks for those. -*) 11 jun 2018: less restrictive check for pixel size integer overflow -*) 14 jan 2018: allow optionally ignoring a few more recoverable errors -*) 17 sep 2017: fix memory leak for some encoder input error cases -*) 27 nov 2016: grey+alpha auto color model detection bugfix -*) 18 apr 2016: Changed qsort to custom stable sort (for platforms w/o qsort). -*) 09 apr 2016: Fixed colorkey usage detection, and better file loading (within - the limits of pure C90). -*) 08 dec 2015: Made load_file function return error if file can't be opened. -*) 24 okt 2015: Bugfix with decoding to palette output. -*) 18 apr 2015: Boundary PM instead of just package-merge for faster encoding. -*) 23 aug 2014: Reduced needless memory usage of decoder. -*) 28 jun 2014: Removed fix_png setting, always support palette OOB for - simplicity. Made ColorProfile public. -*) 09 jun 2014: Faster encoder by fixing hash bug and more zeros optimization. -*) 22 dec 2013: Power of two windowsize required for optimization. -*) 15 apr 2013: Fixed bug with LAC_ALPHA and color key. -*) 25 mar 2013: Added an optional feature to ignore some PNG errors (fix_png). -*) 11 mar 2013 (!): Bugfix with custom free. Changed from "my" to "lodepng_" - prefix for the custom allocators and made it possible with a new #define to - use custom ones in your project without needing to change lodepng's code. -*) 28 jan 2013: Bugfix with color key. -*) 27 okt 2012: Tweaks in text chunk keyword length error handling. -*) 8 okt 2012 (!): Added new filter strategy (entropy) and new auto color mode. - (no palette). Better deflate tree encoding. New compression tweak settings. - Faster color conversions while decoding. Some internal cleanups. -*) 23 sep 2012: Reduced warnings in Visual Studio a little bit. -*) 1 sep 2012 (!): Removed #define's for giving custom (de)compression functions - and made it work with function pointers instead. -*) 23 jun 2012: Added more filter strategies. Made it easier to use custom alloc - and free functions and toggle #defines from compiler flags. Small fixes. -*) 6 may 2012 (!): Made plugging in custom zlib/deflate functions more flexible. -*) 22 apr 2012 (!): Made interface more consistent, renaming a lot. Removed - redundant C++ codec classes. Reduced amount of structs. Everything changed, - but it is cleaner now imho and functionality remains the same. Also fixed - several bugs and shrunk the implementation code. Made new samples. -*) 6 nov 2011 (!): By default, the encoder now automatically chooses the best - PNG color model and bit depth, based on the amount and type of colors of the - raw image. For this, autoLeaveOutAlphaChannel replaced by auto_choose_color. -*) 9 okt 2011: simpler hash chain implementation for the encoder. -*) 8 sep 2011: lz77 encoder lazy matching instead of greedy matching. -*) 23 aug 2011: tweaked the zlib compression parameters after benchmarking. - A bug with the PNG filtertype heuristic was fixed, so that it chooses much - better ones (it's quite significant). A setting to do an experimental, slow, - brute force search for PNG filter types is added. -*) 17 aug 2011 (!): changed some C zlib related function names. -*) 16 aug 2011: made the code less wide (max 120 characters per line). -*) 17 apr 2011: code cleanup. Bugfixes. Convert low to 16-bit per sample colors. -*) 21 feb 2011: fixed compiling for C90. Fixed compiling with sections disabled. -*) 11 dec 2010: encoding is made faster, based on suggestion by Peter Eastman - to optimize long sequences of zeros. -*) 13 nov 2010: added LodePNG_InfoColor_hasPaletteAlpha and - LodePNG_InfoColor_canHaveAlpha functions for convenience. -*) 7 nov 2010: added LodePNG_error_text function to get error code description. -*) 30 okt 2010: made decoding slightly faster -*) 26 okt 2010: (!) changed some C function and struct names (more consistent). - Reorganized the documentation and the declaration order in the header. -*) 08 aug 2010: only changed some comments and external samples. -*) 05 jul 2010: fixed bug thanks to warnings in the new gcc version. -*) 14 mar 2010: fixed bug where too much memory was allocated for char buffers. -*) 02 sep 2008: fixed bug where it could create empty tree that linux apps could - read by ignoring the problem but windows apps couldn't. -*) 06 jun 2008: added more error checks for out of memory cases. -*) 26 apr 2008: added a few more checks here and there to ensure more safety. -*) 06 mar 2008: crash with encoding of strings fixed -*) 02 feb 2008: support for international text chunks added (iTXt) -*) 23 jan 2008: small cleanups, and #defines to divide code in sections -*) 20 jan 2008: support for unknown chunks allowing using LodePNG for an editor. -*) 18 jan 2008: support for tIME and pHYs chunks added to encoder and decoder. -*) 17 jan 2008: ability to encode and decode compressed zTXt chunks added - Also various fixes, such as in the deflate and the padding bits code. -*) 13 jan 2008: Added ability to encode Adam7-interlaced images. Improved - filtering code of encoder. -*) 07 jan 2008: (!) changed LodePNG to use ISO C90 instead of C++. A - C++ wrapper around this provides an interface almost identical to before. - Having LodePNG be pure ISO C90 makes it more portable. The C and C++ code - are together in these files but it works both for C and C++ compilers. -*) 29 dec 2007: (!) changed most integer types to unsigned int + other tweaks -*) 30 aug 2007: bug fixed which makes this Borland C++ compatible -*) 09 aug 2007: some VS2005 warnings removed again -*) 21 jul 2007: deflate code placed in new namespace separate from zlib code -*) 08 jun 2007: fixed bug with 2- and 4-bit color, and small interlaced images -*) 04 jun 2007: improved support for Visual Studio 2005: crash with accessing - invalid std::vector element [0] fixed, and level 3 and 4 warnings removed -*) 02 jun 2007: made the encoder add a tag with version by default -*) 27 may 2007: zlib and png code separated (but still in the same file), - simple encoder/decoder functions added for more simple usage cases -*) 19 may 2007: minor fixes, some code cleaning, new error added (error 69), - moved some examples from here to lodepng_examples.cpp -*) 12 may 2007: palette decoding bug fixed -*) 24 apr 2007: changed the license from BSD to the zlib license -*) 11 mar 2007: very simple addition: ability to encode bKGD chunks. -*) 04 mar 2007: (!) tEXt chunk related fixes, and support for encoding - palettized PNG images. Plus little interface change with palette and texts. -*) 03 mar 2007: Made it encode dynamic Huffman shorter with repeat codes. - Fixed a bug where the end code of a block had length 0 in the Huffman tree. -*) 26 feb 2007: Huffman compression with dynamic trees (BTYPE 2) now implemented - and supported by the encoder, resulting in smaller PNGs at the output. -*) 27 jan 2007: Made the Adler-32 test faster so that a timewaste is gone. -*) 24 jan 2007: gave encoder an error interface. Added color conversion from any - greyscale type to 8-bit greyscale with or without alpha. -*) 21 jan 2007: (!) Totally changed the interface. It allows more color types - to convert to and is more uniform. See the manual for how it works now. -*) 07 jan 2007: Some cleanup & fixes, and a few changes over the last days: - encode/decode custom tEXt chunks, separate classes for zlib & deflate, and - at last made the decoder give errors for incorrect Adler32 or Crc. -*) 01 jan 2007: Fixed bug with encoding PNGs with less than 8 bits per channel. -*) 29 dec 2006: Added support for encoding images without alpha channel, and - cleaned out code as well as making certain parts faster. -*) 28 dec 2006: Added "Settings" to the encoder. -*) 26 dec 2006: The encoder now does LZ77 encoding and produces much smaller files now. - Removed some code duplication in the decoder. Fixed little bug in an example. -*) 09 dec 2006: (!) Placed output parameters of public functions as first parameter. - Fixed a bug of the decoder with 16-bit per color. -*) 15 okt 2006: Changed documentation structure -*) 09 okt 2006: Encoder class added. It encodes a valid PNG image from the - given image buffer, however for now it's not compressed. -*) 08 sep 2006: (!) Changed to interface with a Decoder class -*) 30 jul 2006: (!) LodePNG_InfoPng , width and height are now retrieved in different - way. Renamed decodePNG to decodePNGGeneric. -*) 29 jul 2006: (!) Changed the interface: image info is now returned as a - struct of type LodePNG::LodePNG_Info, instead of a vector, which was a bit clumsy. -*) 28 jul 2006: Cleaned the code and added new error checks. - Corrected terminology "deflate" into "inflate". -*) 23 jun 2006: Added SDL example in the documentation in the header, this - example allows easy debugging by displaying the PNG and its transparency. -*) 22 jun 2006: (!) Changed way to obtain error value. Added - loadFile function for convenience. Made decodePNG32 faster. -*) 21 jun 2006: (!) Changed type of info vector to unsigned. - Changed position of palette in info vector. Fixed an important bug that - happened on PNGs with an uncompressed block. -*) 16 jun 2006: Internally changed unsigned into unsigned where - needed, and performed some optimizations. -*) 07 jun 2006: (!) Renamed functions to decodePNG and placed them - in LodePNG namespace. Changed the order of the parameters. Rewrote the - documentation in the header. Renamed files to lodepng.cpp and lodepng.h -*) 22 apr 2006: Optimized and improved some code -*) 07 sep 2005: (!) Changed to std::vector interface -*) 12 aug 2005: Initial release (C++, decoder only) - - -13. contact information ------------------------ - -Feel free to contact me with suggestions, problems, comments, ... concerning -LodePNG. If you encounter a PNG image that doesn't work properly with this -decoder, feel free to send it and I'll use it to find and fix the problem. - -My email address is (puzzle the account and domain together with an @ symbol): -Domain: gmail dot com. -Account: lode dot vandevenne. - - -Copyright (c) 2005-2019 Lode Vandevenne -*/ diff --git a/thirdparty/basis_universal/encoder/pvpngreader.cpp b/thirdparty/basis_universal/encoder/pvpngreader.cpp new file mode 100644 index 0000000000..46639f2796 --- /dev/null +++ b/thirdparty/basis_universal/encoder/pvpngreader.cpp @@ -0,0 +1,2662 @@ +// pngreader.cpp - Public Domain - see unlicense at bottom of file. +// +// Notes: +// This is ancient code from ~1995 ported to C++. It was originally written for a +// DOS app with very limited memory. It's not as fast as it should be, but it works. +// The low-level PNG reader class was written assuming the PNG file could not fit +// entirely into memory, which dictated how it was written/structured. +// It has been modified to use either zlib or miniz. +// It supports all PNG color types/bit depths/interlacing, however 16-bit/component +// images are converted to 8-bit. +// TRNS chunks are converted to alpha as needed. +// GAMA chunk is read, but not applied. + +#include "../transcoder/basisu.h" + +#define MINIZ_HEADER_FILE_ONLY +#define MINIZ_NO_ZLIB_COMPATIBLE_NAMES +#include "basisu_miniz.h" + +#include "pvpngreader.h" + +#include <stdlib.h> +#include <stdio.h> +#include <math.h> +#include <string.h> +#include <vector> +#include <assert.h> + +#define PVPNG_IDAT_CRC_CHECKING (1) +#define PVPNG_ADLER32_CHECKING (1) + +namespace pv_png +{ + +const uint32_t MIN_PNG_SIZE = 8 + 13 + 8 + 1 + 4 + 12; + +template <typename S> inline S maximum(S a, S b) { return (a > b) ? a : b; } +template <typename S> inline S minimum(S a, S b) { return (a < b) ? a : b; } + +template <typename T> inline void clear_obj(T& obj) { memset(&obj, 0, sizeof(obj)); } + +#define MAX_SUPPORTED_RES (32768) +#define FALSE (0) +#define TRUE (1) +#define PNG_MAX_ALLOC_BLOCKS (16) + +enum +{ + PNG_DECERROR = -3, + PNG_ALLDONE = -5, + PNG_READPASTEOF = -11, + PNG_UNKNOWNTYPE = -16, + PNG_FILEREADERROR = -17, + PNG_NOTENOUGHMEM = -108, + PNG_BAD_CHUNK_CRC32 = -13000, + PNG_NO_IHDR = -13001, + PNG_BAD_WIDTH = -13002, + PNG_BAD_HEIGHT = -13003, + PNG_UNS_COMPRESSION = -13004, + PNG_UNS_FILTER = -13005, + PNG_UNS_ILACE = -13006, + PNG_UNS_COLOR_TYPE = -13007, + PNG_BAD_BIT_DEPTH = -13008, + PNG_BAD_CHUNK_SIZE = -13009, + PNG_UNS_CRITICAL_CHUNK = -13010, + PNG_BAD_TRNS_CHUNK = -13011, + PNG_BAD_PLTE_CHUNK = -13012, + PNG_UNS_RESOLUTION = -13013, + PNG_INVALID_DATA_STREAM = -13014, + PNG_MISSING_PALETTE = -13015, + PNG_UNS_PREDICTOR = -13016, + PNG_INCOMPLETE_IMAGE = -13017, + PNG_TOO_MUCH_DATA = -13018 +}; + +#define PNG_COLOR_TYPE_PAL_MASK (1) +#define PNG_COLOR_TYPE_COL_MASK (2) +#define PNG_COLOR_TYPE_ALP_MASK (4) + +#define PNG_INFLATE_SRC_BUF_SIZE (4096) + +struct ihdr_struct +{ + uint32_t m_width; + uint32_t m_height; + uint8_t m_bit_depth; + uint8_t m_color_type; + uint8_t m_comp_type; + uint8_t m_filter_type; + uint8_t m_ilace_type; +}; + +class png_file +{ +public: + png_file() { } + virtual ~png_file() { } + + virtual bool resize(uint64_t new_size) = 0; + virtual uint64_t get_size() = 0; + virtual uint64_t tell() = 0; + virtual bool seek(uint64_t ofs) = 0; + virtual size_t write(const void* pBuf, size_t len) = 0; + virtual size_t read(void* pBuf, size_t len) = 0; +}; + +class png_memory_file : public png_file +{ +public: + std::vector<uint8_t> m_buf; + uint64_t m_ofs; + + png_memory_file() : + png_file(), + m_ofs(0) + { + } + + virtual ~png_memory_file() + { + } + + std::vector<uint8_t>& get_buf() { return m_buf; } + const std::vector<uint8_t>& get_buf() const { return m_buf; } + + void init() + { + m_ofs = 0; + m_buf.resize(0); + } + + virtual bool resize(uint64_t new_size) + { + if ((sizeof(size_t) == sizeof(uint32_t)) && (new_size >= 0x7FFFFFFF)) + return false; + + m_buf.resize((size_t)new_size); + m_ofs = m_buf.size(); + + return true; + } + + virtual uint64_t get_size() + { + return m_buf.size(); + } + + virtual uint64_t tell() + { + return m_ofs; + } + + virtual bool seek(uint64_t ofs) + { + m_ofs = ofs; + return true; + } + + virtual size_t write(const void* pBuf, size_t len) + { + uint64_t new_size = m_ofs + len; + if (new_size > m_buf.size()) + { + if ((sizeof(size_t) == sizeof(uint32_t)) && (new_size > 0x7FFFFFFFUL)) + return 0; + m_buf.resize(new_size); + } + + memcpy(&m_buf[(size_t)m_ofs], pBuf, len); + m_ofs += len; + + return len; + } + + virtual size_t read(void* pBuf, size_t len) + { + if (m_ofs >= m_buf.size()) + return 0; + + uint64_t max_bytes = minimum<uint64_t>(len, m_buf.size() - m_ofs); + memcpy(pBuf, &m_buf[(size_t)m_ofs], max_bytes); + + m_ofs += max_bytes; + + return max_bytes; + } +}; + +class png_readonly_memory_file : public png_file +{ +public: + const uint8_t* m_pBuf; + size_t m_buf_size; + uint64_t m_ofs; + + png_readonly_memory_file() : + png_file(), + m_pBuf(nullptr), + m_buf_size(0), + m_ofs(0) + { + } + + virtual ~png_readonly_memory_file() + { + } + + void init(const void *pBuf, size_t buf_size) + { + m_pBuf = static_cast<const uint8_t*>(pBuf); + m_buf_size = buf_size; + m_ofs = 0; + } + + virtual bool resize(uint64_t new_size) + { + (void)new_size; + assert(0); + return false; + } + + virtual uint64_t get_size() + { + return m_buf_size; + } + + virtual uint64_t tell() + { + return m_ofs; + } + + virtual bool seek(uint64_t ofs) + { + m_ofs = ofs; + return true; + } + + virtual size_t write(const void* pBuf, size_t len) + { + (void)pBuf; + (void)len; + assert(0); + return 0; + } + + virtual size_t read(void* pBuf, size_t len) + { + if (m_ofs >= m_buf_size) + return 0; + + uint64_t max_bytes = minimum<uint64_t>(len, m_buf_size - m_ofs); + memcpy(pBuf, &m_pBuf[(size_t)m_ofs], max_bytes); + + m_ofs += max_bytes; + + return max_bytes; + } +}; + +#ifdef _MSC_VER +#define ftell64 _ftelli64 +#define fseek64 _fseeki64 +#else +#define ftell64 ftello +#define fseek64 fseeko +#endif + +class png_cfile : public png_file +{ +public: + FILE* m_pFile; + + png_cfile() : + png_file(), + m_pFile(nullptr) + { + } + + virtual ~png_cfile() + { + close(); + } + + bool init(const char *pFilename, const char *pMode) + { + close(); + + m_pFile = nullptr; + +#ifdef _MSC_VER + fopen_s(&m_pFile, pFilename, pMode); +#else + m_pFile = fopen(pFilename, pMode); +#endif + + return m_pFile != nullptr; + } + + bool close() + { + bool status = true; + if (m_pFile) + { + if (fclose(m_pFile) == EOF) + status = false; + m_pFile = nullptr; + } + return status; + } + + virtual bool resize(uint64_t new_size) + { + if (new_size) + { + if (!seek(new_size - 1)) + return false; + + int v = 0; + if (write(&v, 1) != 1) + return false; + } + else + { + if (!seek(0)) + return false; + } + + return true; + } + + virtual uint64_t get_size() + { + int64_t cur_ofs = ftell64(m_pFile); + if (cur_ofs < 0) + return 0; + + if (fseek64(m_pFile, 0, SEEK_END) != 0) + return 0; + + const int64_t cur_size = ftell64(m_pFile); + if (cur_size < 0) + return 0; + + if (fseek64(m_pFile, cur_ofs, SEEK_SET) != 0) + return 0; + + return cur_size; + } + + virtual uint64_t tell() + { + int64_t cur_ofs = ftell64(m_pFile); + if (cur_ofs < 0) + return 0; + + return cur_ofs; + } + + virtual bool seek(uint64_t ofs) + { + return fseek64(m_pFile, ofs, SEEK_SET) == 0; + } + + virtual size_t write(const void* pBuf, size_t len) + { + return (size_t)fwrite(pBuf, 1, len, m_pFile); + } + + virtual size_t read(void* pBuf, size_t len) + { + return (size_t)fread(pBuf, 1, len, m_pFile); + } +}; + +// This low-level helper class handles the actual decoding of PNG files. +class png_decoder +{ +public: + png_decoder(); + ~png_decoder(); + + // Scans the PNG file, but doesn't decode the IDAT data. + // Returns 0 on success, or an error code. + // If the returned status is non-zero, or m_img_supported_flag==FALSE the image either the image is corrupted/not PNG or is unsupported in some way. + int png_scan(png_file *pFile); + + // Decodes a single scanline of PNG image data. + // Returns a pointer to the scanline's pixel data and its size in bytes. + // This data is only minimally processed from the internal PNG pixel data. + // The caller must use the ihdr, trns_flag and values, and the palette to actually decode the pixel data. + // + // Possible returned pixel formats is somewhat complex due to the history of this code: + // 8-bit RGBA, always 4 bytes/pixel - 24bpp PNG's are converted to 32bpp and TRNS processing is done automatically (8/16bpp RGB or RGBA PNG files) + // 1/2/4/8-bit grayscale, 1 byte per pixel - must convert to [0,255] using the palette or some other means, must optionally use the TRNS chunk for alpha (1/2/4/8 Grayscale PNG files - not 16bpp though!) + // 1/2/4/8-bit palettized, 1 byte per pixel - must convert to RGB using the 24bpp palette and optionally the TRNS chunk for alpha (1/2/4/8bpp palettized PNG files) + // 8-bit grayscale with alpha, 2 bytes per pixel - TRNS processing will be done for you on 16bpp images (there's a special case here for 16bpp Grey files) (8/16bpp Gray-Alpha *or 16bpp Grayscale* PNG files) + // + // Returns 0 on success, a non-zero error code, or PNG_ALLDONE. + int png_decode(void** ppImg_ptr, uint32_t* pImg_len); + + // Starts decoding. Returns 0 on success, otherwise an error code. + int png_decode_start(); + + // Deinitializes the decoder, freeing all allocations. + void png_decode_end(); + + png_file* m_pFile; + + // Image's 24bpp palette - 3 bytes per entry + uint8_t m_plte_flag; + uint8_t m_img_pal[768]; + + int m_img_supported_flag; + + ihdr_struct m_ihdr; + + uint8_t m_chunk_flag; + uint32_t m_chunk_size; + uint32_t m_chunk_left; + uint32_t m_chunk_crc32; + uint8_t m_chunk_name[4]; + + uint8_t m_end_of_idat_chunks; + + void* m_pMalloc_blocks[PNG_MAX_ALLOC_BLOCKS]; + + uint32_t m_dec_bytes_per_pixel; // bytes per pixel decoded from the PNG file (minimum 1 for 1/2/4 bpp), factors in the PNG 8/16 bit/component bit depth, may be up to 8 bytes (2*4) + uint32_t m_dst_bytes_per_pixel; // bytes per pixel returned to the caller (1-4), always has alpha if the PNG has alpha, 16-bit components always converted to 8-bits/component + + uint32_t m_dec_bytes_per_line; // bytes per line decoded from the PNG file (before 1/2/4 expansion), +1 for the filter byte + uint32_t m_src_bytes_per_line; // decoded PNG bytes per line, before 1/2/4 bpp expansion, not counting the filter byte, updated during adam7 deinterlacing + uint32_t m_dst_bytes_per_line; // bytes per line returned to the caller (1-4 times width) + + int (*m_pProcess_func)(uint8_t* src, uint8_t* dst, int pixels, png_decoder* pwi); + + uint8_t* m_pPre_line_buf; + uint8_t* m_pCur_line_buf; + uint8_t* m_pPro_line_buf; + + uint8_t m_bkgd_flag; + uint32_t m_bkgd_value[3]; + + uint8_t m_gama_flag; + uint32_t m_gama_value; + + uint8_t m_trns_flag; + uint32_t m_trns_value[256]; + + buminiz::mz_stream m_inflator; + + uint8_t inflate_src_buf[PNG_INFLATE_SRC_BUF_SIZE]; + + uint32_t m_inflate_src_buf_ofs; + uint32_t m_inflate_src_buf_size; + uint32_t m_inflate_dst_buf_ofs; + + int m_inflate_eof_flag; + + uint8_t m_gamma_table[256]; + + int m_pass_x_size; + int m_pass_y_left; + + int m_adam7_pass_num; + int m_adam7_pass_y; + int m_adam7_pass_size_x[7]; + int m_adam7_pass_size_y[7]; + + std::vector<uint8_t> m_adam7_image_buf; + + int m_adam7_decoded_flag; + + bool m_scanned_flag; + + int m_terminate_status; + +#define TEMP_BUF_SIZE (384) + uint8_t m_temp_buf[TEMP_BUF_SIZE * 4]; + + void clear(); + void uninitialize(); + int terminate(int status); + void* png_malloc(uint32_t i); + void* png_calloc(uint32_t i); + int block_read(void* buf, uint32_t len); + int64_t block_read_dword(); + int fetch_next_chunk_data(uint8_t* buf, int bytes); + int fetch_next_chunk_byte(); + int fetch_next_chunk_word(); + int64_t fetch_next_chunk_dword(); + int fetch_next_chunk_init(); + int unchunk_data(uint8_t* buf, uint32_t bytes, uint32_t* ptr_bytes_read); + inline void adam7_write_pixel_8(int x, int y, int c); + inline void adam7_write_pixel_16(int x, int y, int r, int g); + inline void adam7_write_pixel_24(int x, int y, int r, int g, int b); + inline void adam7_write_pixel_32(int x, int y, int r, int g, int b, int a); + void unpredict_sub(uint8_t* lst, uint8_t* cur, uint32_t bytes, int bpp); + void unpredict_up(uint8_t* lst, uint8_t* cur, uint32_t bytes, int bpp); + void unpredict_average(uint8_t* lst, uint8_t* cur, uint32_t bytes, int bpp); + inline uint8_t paeth_predictor(int a, int b, int c); + void unpredict_paeth(uint8_t* lst, uint8_t* cur, uint32_t bytes, int bpp); + int adam7_pass_size(int size, int start, int step); + int decompress_line(uint32_t* bytes_decoded); + int find_iend_chunk(); + void calc_gamma_table(); + void create_grey_palette(); + int read_signature(); + int read_ihdr_chunk(); + int read_bkgd_chunk(); + int read_gama_chunk(); + int read_trns_chunk(); + int read_plte_chunk(); + int find_idat_chunk(); +}; + +void png_decoder::uninitialize() +{ + m_pFile = nullptr; + + for (int i = 0; i < PNG_MAX_ALLOC_BLOCKS; i++) + { + free(m_pMalloc_blocks[i]); + m_pMalloc_blocks[i] = nullptr; + } + + mz_inflateEnd(&m_inflator); +} + +int png_decoder::terminate(int status) +{ + if (m_terminate_status == 0) + m_terminate_status = status; + + uninitialize(); + return status; +} + +void* png_decoder::png_malloc(uint32_t len) +{ + if (!len) + len++; + + void* p = malloc(len); + + if (!p) + return nullptr; + + int j; + for (j = 0; j < PNG_MAX_ALLOC_BLOCKS; j++) + if (!m_pMalloc_blocks[j]) + break; + + if (j == PNG_MAX_ALLOC_BLOCKS) + return nullptr; + + m_pMalloc_blocks[j] = p; + + return p; +} + +void* png_decoder::png_calloc(uint32_t len) +{ + void* p = png_malloc(len); + if (!p) + return nullptr; + + if (p) + memset(p, 0, len); + + return p; +} + +int png_decoder::block_read(void* buf, uint32_t len) +{ + size_t bytes_read = m_pFile->read(buf, len); + if (bytes_read != len) + return terminate(PNG_READPASTEOF); + return 0; +} + +int64_t png_decoder::block_read_dword() +{ + uint8_t buf[4]; + + int status = block_read(buf, 4); + if (status != 0) + return status; + + uint32_t v = buf[3] + ((uint32_t)buf[2] << 8) + ((uint32_t)buf[1] << 16) + ((uint32_t)buf[0] << 24); + return (int64_t)v; +} + +int png_decoder::fetch_next_chunk_data(uint8_t* buf, int bytes) +{ + if (!m_chunk_flag) + return 0; + + bytes = minimum<int>(bytes, m_chunk_left); + + int status = block_read(buf, bytes); + if (status != 0) + return status; + +#if PVPNG_IDAT_CRC_CHECKING + bool check_crc32 = true; +#else + const bool is_idat = (m_chunk_name[0] == 'I') && (m_chunk_name[1] == 'D') && (m_chunk_name[2] == 'A') && (m_chunk_name[3] == 'T'); + bool check_crc32 = !is_idat; +#endif + + if (check_crc32) + m_chunk_crc32 = buminiz::mz_crc32(m_chunk_crc32, buf, bytes); + + if ((m_chunk_left -= bytes) == 0) + { + int64_t res = block_read_dword(); + if (res < 0) + return (int)res; + + if (check_crc32) + { + if (m_chunk_crc32 != (uint32_t)res) + return terminate(PNG_BAD_CHUNK_CRC32); + } + + m_chunk_flag = FALSE; + } + + return bytes; +} + +int png_decoder::fetch_next_chunk_byte() +{ + uint8_t buf[1]; + + int status = fetch_next_chunk_data(buf, 1); + if (status < 0) + return status; + + if (status != 1) + return terminate(PNG_BAD_CHUNK_SIZE); + + return buf[0]; +} + +int png_decoder::fetch_next_chunk_word() +{ + uint8_t buf[2]; + + int status = fetch_next_chunk_data(buf, 2); + if (status < 0) + return status; + + if (status != 2) + return terminate(PNG_BAD_CHUNK_SIZE); + + return buf[1] + ((uint32_t)buf[0] << 8); +} + +int64_t png_decoder::fetch_next_chunk_dword() +{ + uint8_t buf[4]; + + int status = fetch_next_chunk_data(buf, 4); + if (status < 0) + return status; + + if (status != 4) + terminate(PNG_BAD_CHUNK_SIZE); + + uint32_t v = buf[3] + ((uint32_t)buf[2] << 8) + ((uint32_t)buf[1] << 16) + ((uint32_t)buf[0] << 24); + return (int64_t)v; +} + +int png_decoder::fetch_next_chunk_init() +{ + while (m_chunk_flag) + { + int status = fetch_next_chunk_data(m_temp_buf, TEMP_BUF_SIZE * 4); + if (status != 0) + return status; + } + + int64_t n = block_read_dword(); + if (n < 0) + return (int)n; + + m_chunk_size = (uint32_t)n; + + m_chunk_flag = TRUE; + m_chunk_left = m_chunk_size + 4; + m_chunk_crc32 = 0; + + int status = fetch_next_chunk_data(m_chunk_name, 4); + if (status < 0) + return status; + + return 0; +} + +int png_decoder::unchunk_data(uint8_t* buf, uint32_t bytes, uint32_t* ptr_bytes_read) +{ + uint32_t bytes_read = 0; + + if ((!bytes) || (m_end_of_idat_chunks)) + { + *ptr_bytes_read = 0; + return TRUE; + } + + while (bytes_read != bytes) + { + if (!m_chunk_flag) + { + int res = fetch_next_chunk_init(); + if (res < 0) + return res; + + if ((m_chunk_name[0] != 'I') || + (m_chunk_name[1] != 'D') || + (m_chunk_name[2] != 'A') || + (m_chunk_name[3] != 'T')) + { + *ptr_bytes_read = bytes_read; + m_end_of_idat_chunks = TRUE; + return TRUE; + } + } + + int res = fetch_next_chunk_data(buf + bytes_read, bytes - bytes_read); + if (res < 0) + return res; + + bytes_read += (uint32_t)res; + } + + *ptr_bytes_read = bytes_read; + + return FALSE; +} + +inline void png_decoder::adam7_write_pixel_8(int x, int y, int c) +{ + m_adam7_image_buf[x + y * m_dst_bytes_per_line] = (uint8_t)c; +} + +inline void png_decoder::adam7_write_pixel_16(int x, int y, int r, int g) +{ + uint32_t ofs = x * 2 + y * m_dst_bytes_per_line; + m_adam7_image_buf[ofs + 0] = (uint8_t)r; + m_adam7_image_buf[ofs + 1] = (uint8_t)g; +} + +inline void png_decoder::adam7_write_pixel_24(int x, int y, int r, int g, int b) +{ + uint32_t ofs = x * 3 + y * m_dst_bytes_per_line; + m_adam7_image_buf[ofs + 0] = (uint8_t)r; + m_adam7_image_buf[ofs + 1] = (uint8_t)g; + m_adam7_image_buf[ofs + 2] = (uint8_t)b; +} + +inline void png_decoder::adam7_write_pixel_32(int x, int y, int r, int g, int b, int a) +{ + uint32_t ofs = x * 4 + y * m_dst_bytes_per_line; + m_adam7_image_buf[ofs + 0] = (uint8_t)r; + m_adam7_image_buf[ofs + 1] = (uint8_t)g; + m_adam7_image_buf[ofs + 2] = (uint8_t)b; + m_adam7_image_buf[ofs + 3] = (uint8_t)a; +} + +static void PixelDePack2(void* src, void* dst, int numbytes) +{ + uint8_t* src8 = (uint8_t*)src; + uint8_t* dst8 = (uint8_t*)dst; + + while (numbytes) + { + uint8_t v = *src8++; + + for (uint32_t i = 0; i < 8; i++) + dst8[7 - i] = (v >> i) & 1; + + dst8 += 8; + numbytes--; + } +} + +static void PixelDePack16(void* src, void* dst, int numbytes) +{ + uint8_t* src8 = (uint8_t*)src; + uint8_t* dst8 = (uint8_t*)dst; + + while (numbytes) + { + uint8_t v = *src8++; + + dst8[0] = (uint8_t)v >> 4; + dst8[1] = (uint8_t)v & 0xF; + dst8 += 2; + + numbytes--; + } +} + +static int unpack_grey_1(uint8_t* src, uint8_t* dst, int pixels, png_decoder *pwi) +{ + (void)pwi; + PixelDePack2(src, dst, pixels >> 3); + + dst += (pixels & 0xFFF8); + + if ((pixels & 7) != 0) + { + uint8_t c = src[pixels >> 3]; + + pixels &= 7; + + while (pixels--) + { + *dst++ = ((c & 128) >> 7); + + c <<= 1; + } + } + + return TRUE; +} + +static int unpack_grey_2(uint8_t* src, uint8_t* dst, int pixels, png_decoder* pwi) +{ + (void)pwi; + int i = pixels; + uint8_t c; + + while (i >= 4) + { + c = *src++; + + *dst++ = (c >> 6); + *dst++ = (c >> 4) & 3; + *dst++ = (c >> 2) & 3; + *dst++ = (c) & 3; + + i -= 4; + } + + if (i) + { + c = *src; + + while (i--) + { + *dst++ = (c >> 6); + + c <<= 2; + } + } + + return TRUE; +} + +static int unpack_grey_4(uint8_t* src, uint8_t* dst, int pixels, png_decoder* pwi) +{ + (void)pwi; + + PixelDePack16(src, dst, pixels >> 1); + + if (pixels & 1) + dst[pixels & 0xFFFE] = (src[pixels >> 1] >> 4); + + return TRUE; +} + +static int unpack_grey_8(uint8_t* src, uint8_t* dst, int pixels, png_decoder* pwi) +{ + (void)src; + (void)dst; + (void)pixels; + (void)pwi; + return FALSE; +} + +static int unpack_grey_16(uint8_t* src, uint8_t* dst, int pixels, png_decoder* pwi) +{ + (void)pwi; + while (pixels--) + { + *dst++ = *src++; + + src++; + } + + return TRUE; +} + +static int unpack_grey_16_2(uint8_t* src, uint8_t* dst, int pixels, png_decoder* pwi) +{ + if (pwi->m_trns_flag) + { + while (pixels--) + { + uint32_t v = (src[0] << 8) + src[1]; + src += 2; + + *dst++ = (uint8_t)(v >> 8); + *dst++ = (v == pwi->m_trns_value[0]) ? 0 : 255; + } + } + else + { + while (pixels--) + { + *dst++ = *src++; + *dst++ = 0xFF; + + src++; + } + } + + return TRUE; +} + +static int unpack_true_8(uint8_t* src, uint8_t* dst, int pixels, png_decoder* pwi) +{ + if (pwi->m_trns_flag) + { + const uint32_t tr = pwi->m_trns_value[0]; + const uint32_t tg = pwi->m_trns_value[1]; + const uint32_t tb = pwi->m_trns_value[2]; + + for (int i = 0; i < pixels; i++) + { + uint8_t r = src[i * 3 + 0]; + uint8_t g = src[i * 3 + 1]; + uint8_t b = src[i * 3 + 2]; + + dst[i * 4 + 0] = r; + dst[i * 4 + 1] = g; + dst[i * 4 + 2] = b; + dst[i * 4 + 3] = ((r == tr) && (g == tg) && (b == tb)) ? 0 : 255; + } + } + else + { + for (int i = 0; i < pixels; i++) + { + dst[i * 4 + 0] = src[i * 3 + 0]; + dst[i * 4 + 1] = src[i * 3 + 1]; + dst[i * 4 + 2] = src[i * 3 + 2]; + dst[i * 4 + 3] = 255; + } + } + + return TRUE; +} + +static int unpack_true_16(uint8_t* src, uint8_t* dst, int pixels, png_decoder* pwi) +{ + if (pwi->m_trns_flag) + { + const uint32_t tr = pwi->m_trns_value[0]; + const uint32_t tg = pwi->m_trns_value[1]; + const uint32_t tb = pwi->m_trns_value[2]; + + for (int i = 0; i < pixels; i++) + { + uint32_t r = (src[i * 6 + 0] << 8) + src[i * 6 + 1]; + uint32_t g = (src[i * 6 + 2] << 8) + src[i * 6 + 3]; + uint32_t b = (src[i * 6 + 4] << 8) + src[i * 6 + 5]; + + dst[i * 4 + 0] = (uint8_t)(r >> 8); + dst[i * 4 + 1] = (uint8_t)(g >> 8); + dst[i * 4 + 2] = (uint8_t)(b >> 8); + dst[i * 4 + 3] = ((r == tr) && (g == tg) && (b == tb)) ? 0 : 255; + } + } + else + { + while (pixels--) + { + dst[0] = src[0]; + dst[1] = src[2]; + dst[2] = src[4]; + dst[3] = 255; + + dst += 4; + src += 6; + } + } + + return TRUE; +} + +static int unpack_grey_alpha_8(uint8_t* src, uint8_t* dst, int pixels, png_decoder* pwi) +{ + (void)pwi; + while (pixels--) + { + dst[0] = src[0]; + dst[1] = src[1]; + dst += 2; + src += 2; + } + + return TRUE; +} + +static int unpack_grey_alpha_16(uint8_t* src, uint8_t* dst, int pixels, png_decoder* pwi) +{ + (void)pwi; + while (pixels--) + { + dst[0] = src[0]; + dst[1] = src[2]; + dst += 2; + src += 4; + } + + return TRUE; +} + +static int unpack_true_alpha_8(uint8_t* src, uint8_t* dst, int pixels, png_decoder* pwi) +{ + (void)src; + (void)dst; + (void)pixels; + (void)pwi; + return FALSE; +} + +static int unpack_true_alpha_16(uint8_t* src, uint8_t* dst, int pixels, png_decoder* pwi) +{ + (void)pwi; + while (pixels--) + { + dst[0] = src[0]; + dst[1] = src[2]; + dst[2] = src[4]; + dst[3] = src[6]; + dst += 4; + src += 8; + } + + return TRUE; +} + +void png_decoder::unpredict_sub(uint8_t* lst, uint8_t* cur, uint32_t bytes, int bpp) +{ + (void)lst; + if (bytes == (uint32_t)bpp) + return; + + cur += bpp; + bytes -= bpp; + + while (bytes--) + { + *cur += *(cur - bpp); + cur++; + } +} + +void png_decoder::unpredict_up(uint8_t* lst, uint8_t* cur, uint32_t bytes, int bpp) +{ + (void)bpp; + while (bytes--) + *cur++ += *lst++; +} + +void png_decoder::unpredict_average(uint8_t* lst, uint8_t* cur, uint32_t bytes, int bpp) +{ + int i; + + for (i = 0; i < bpp; i++) + *cur++ += (*lst++ >> 1); + + if (bytes == (uint32_t)bpp) + return; + + bytes -= bpp; + + while (bytes--) + { + *cur += ((*lst++ + *(cur - bpp)) >> 1); + cur++; + } +} + +inline uint8_t png_decoder::paeth_predictor(int a, int b, int c) +{ + int p, pa, pb, pc; + + /* a = left, b = above, c = upper left */ + + p = a + b - c; + + pa = abs(p - a); + pb = abs(p - b); + pc = abs(p - c); + + if ((pa <= pb) && (pa <= pc)) + return (uint8_t)a; + else if (pb <= pc) + return (uint8_t)b; + else + return (uint8_t)c; +} + +void png_decoder::unpredict_paeth(uint8_t* lst, uint8_t* cur, uint32_t bytes, int bpp) +{ + int i; + + for (i = 0; i < bpp; i++) + *cur++ += paeth_predictor(0, *lst++, 0); + + if (bytes == (uint32_t)bpp) + return; + + bytes -= bpp; + + while (bytes--) + { + int p, a, b, c, pa, pb, pc; + + a = *(cur - bpp); + b = *lst; + c = *(lst - bpp); + + p = a + b - c; + + pa = abs(p - a); + pb = abs(p - b); + pc = abs(p - c); + + if ((pa <= pb) && (pa <= pc)) + *cur++ += (uint8_t)a; + else if (pb <= pc) + *cur++ += (uint8_t)b; + else + *cur++ += (uint8_t)c; + + lst++; + } +} + +int png_decoder::adam7_pass_size(int size, int start, int step) +{ + if (size > start) + return 1 + ((size - 1) - start) / step; + else + return 0; +} + +// TRUE if no more data, negative on error, FALSE if OK +int png_decoder::decompress_line(uint32_t* bytes_decoded) +{ + int status; + uint32_t temp, src_bytes_left, dst_bytes_left; + + m_inflate_dst_buf_ofs = 0; + + for (; ; ) + { + if (m_inflate_src_buf_ofs == PNG_INFLATE_SRC_BUF_SIZE) + { + int res = unchunk_data(inflate_src_buf, PNG_INFLATE_SRC_BUF_SIZE, &temp); + if (res < 0) + return res; + m_inflate_eof_flag = res; + + m_inflate_src_buf_size = temp; + + m_inflate_src_buf_ofs = 0; + } + + for (; ; ) + { + src_bytes_left = m_inflate_src_buf_size - m_inflate_src_buf_ofs; + dst_bytes_left = m_dec_bytes_per_line - m_inflate_dst_buf_ofs; + + m_inflator.next_in = inflate_src_buf + m_inflate_src_buf_ofs; + m_inflator.avail_in = src_bytes_left; + + m_inflator.next_out = m_pCur_line_buf + m_inflate_dst_buf_ofs; + m_inflator.avail_out = dst_bytes_left; + + status = buminiz::mz_inflate2(&m_inflator, buminiz::MZ_NO_FLUSH, PVPNG_ADLER32_CHECKING); + + const uint32_t src_bytes_consumed = src_bytes_left - m_inflator.avail_in; + const uint32_t dst_bytes_written = dst_bytes_left - m_inflator.avail_out; + + m_inflate_src_buf_ofs += src_bytes_consumed; + m_inflate_dst_buf_ofs += dst_bytes_written; + + if (status != buminiz::MZ_OK) + { + if (status != buminiz::MZ_STREAM_END) + return terminate(PNG_INVALID_DATA_STREAM); + + if (bytes_decoded) + *bytes_decoded = m_inflate_dst_buf_ofs; + + return TRUE; + } + + if (m_inflate_dst_buf_ofs == m_dec_bytes_per_line) + { + if (bytes_decoded) + *bytes_decoded = m_inflate_dst_buf_ofs; + + return FALSE; + } + + if ((m_inflate_src_buf_ofs == m_inflate_src_buf_size) && + (m_inflate_eof_flag == FALSE)) + break; + } + } +} + +int png_decoder::find_iend_chunk() +{ + uint32_t dummy; + + while (!m_end_of_idat_chunks) + { + int res = unchunk_data(m_temp_buf, TEMP_BUF_SIZE * 4, &dummy); + if (res < 0) + return res; + } + + for (; ; ) + { + if ((m_chunk_name[0] == 'I') && + (m_chunk_name[1] == 'E') && + (m_chunk_name[2] == 'N') && + (m_chunk_name[3] == 'D')) + break; + + int res = fetch_next_chunk_init(); + if (res < 0) + return res; + } + + return 0; +} + +int png_decoder::png_decode(void** ppImg_ptr, uint32_t* pImg_len) +{ + int status; + uint8_t* decoded_line; + uint32_t bytes_decoded; + + if (m_adam7_decoded_flag) + { + if (m_pass_y_left == 0) + return PNG_ALLDONE; + + *ppImg_ptr = &m_adam7_image_buf[(m_ihdr.m_height - m_pass_y_left) * m_dst_bytes_per_line]; + *pImg_len = m_dst_bytes_per_line; + + m_pass_y_left--; + + return 0; + } + + if (m_pass_y_left == 0) + { + if (m_ihdr.m_ilace_type == 0) + { + status = find_iend_chunk(); + if (status < 0) + return status; + + return PNG_ALLDONE; + } + + for (; ; ) + { + if (++m_adam7_pass_num == 7) + { + status = find_iend_chunk(); + if (status < 0) + return status; + + return PNG_ALLDONE; + } + + if (((m_pass_y_left = m_adam7_pass_size_y[m_adam7_pass_num]) != 0) && + ((m_pass_x_size = m_adam7_pass_size_x[m_adam7_pass_num]) != 0)) + break; + } + + switch (m_adam7_pass_num) + { + case 0: + case 1: + case 3: + case 5: + m_adam7_pass_y = 0; + break; + case 2: + m_adam7_pass_y = 4; + break; + case 4: + m_adam7_pass_y = 2; + break; + case 6: + m_adam7_pass_y = 1; + break; + } + + switch (m_ihdr.m_color_type) + { + case PNG_COLOR_TYPE_GREYSCALE: + case PNG_COLOR_TYPE_PALETTIZED: + { + m_src_bytes_per_line = (((uint32_t)m_pass_x_size * m_ihdr.m_bit_depth) + 7) / 8; + break; + } + case PNG_COLOR_TYPE_TRUECOLOR: + { + m_src_bytes_per_line = ((uint32_t)m_pass_x_size * m_dec_bytes_per_pixel); + break; + } + case PNG_COLOR_TYPE_GREYSCALE_ALPHA: + { + m_src_bytes_per_line = ((uint32_t)m_pass_x_size * m_dec_bytes_per_pixel); + break; + } + case PNG_COLOR_TYPE_TRUECOLOR_ALPHA: + { + m_src_bytes_per_line = ((uint32_t)m_pass_x_size * m_dec_bytes_per_pixel); + break; + } + } + + m_dec_bytes_per_line = m_src_bytes_per_line + 1; + + memset(m_pPre_line_buf, 0, m_src_bytes_per_line); + } + + int res = decompress_line(&bytes_decoded); + if (res < 0) + return terminate(res); + + if (res) + { + if (m_ihdr.m_ilace_type == 0) + { + if (m_pass_y_left != 1) + return terminate(PNG_INCOMPLETE_IMAGE); + } + else + { + if ((m_pass_y_left != 1) && (m_adam7_pass_num != 6)) + return terminate(PNG_INCOMPLETE_IMAGE); + } + } + + if (bytes_decoded != m_dec_bytes_per_line) + return terminate(PNG_INCOMPLETE_IMAGE); + + decoded_line = &m_pCur_line_buf[1]; + + switch (m_pCur_line_buf[0]) + { + case 0: + break; + case 1: + { + unpredict_sub(m_pPre_line_buf, m_pCur_line_buf + 1, m_src_bytes_per_line, m_dec_bytes_per_pixel); + break; + } + case 2: + { + unpredict_up(m_pPre_line_buf, m_pCur_line_buf + 1, m_src_bytes_per_line, m_dec_bytes_per_pixel); + break; + } + case 3: + { + unpredict_average(m_pPre_line_buf, m_pCur_line_buf + 1, m_src_bytes_per_line, m_dec_bytes_per_pixel); + break; + } + case 4: + { + unpredict_paeth(m_pPre_line_buf, m_pCur_line_buf + 1, m_src_bytes_per_line, m_dec_bytes_per_pixel); + break; + } + default: + return terminate(PNG_UNS_PREDICTOR); + } + + memmove(m_pPre_line_buf, m_pCur_line_buf + 1, m_src_bytes_per_line); + + if (m_pProcess_func) + { + if ((*m_pProcess_func)(m_pCur_line_buf + 1, m_pPro_line_buf, m_pass_x_size, this)) + decoded_line = m_pPro_line_buf; + } + + if (m_ihdr.m_ilace_type == 0) + { + *ppImg_ptr = decoded_line; + *pImg_len = m_dst_bytes_per_line; + + if (--m_pass_y_left == 0) + { + res = decompress_line(&bytes_decoded); + if (res < 0) + return terminate(res); + + if (res == FALSE) + return terminate(PNG_TOO_MUCH_DATA); + + if (bytes_decoded) + return terminate(PNG_TOO_MUCH_DATA); + } + } + else + { + int i, x_ofs = 0, y_ofs = 0, x_stp = 0; + uint8_t* p = decoded_line; + + switch (m_adam7_pass_num) + { + case 0: { x_ofs = 0; x_stp = 8; break; } + case 1: { x_ofs = 4; x_stp = 8; break; } + case 2: { x_ofs = 0; x_stp = 4; break; } + case 3: { x_ofs = 2; x_stp = 4; break; } + case 4: { x_ofs = 0; x_stp = 2; break; } + case 5: { x_ofs = 1; x_stp = 2; break; } + case 6: { x_ofs = 0; x_stp = 1; break; } + } + + y_ofs = m_adam7_pass_y; + + assert(x_ofs < (int)m_ihdr.m_width); + assert(y_ofs < (int)m_ihdr.m_height); + + if (m_dst_bytes_per_pixel == 1) + { + for (i = m_pass_x_size; i > 0; i--, x_ofs += x_stp) + adam7_write_pixel_8(x_ofs, y_ofs, *p++); + } + else if (m_dst_bytes_per_pixel == 2) + { + for (i = m_pass_x_size; i > 0; i--, x_ofs += x_stp, p += 2) + adam7_write_pixel_16(x_ofs, y_ofs, p[0], p[1]); + } + else if (m_dst_bytes_per_pixel == 3) + { + for (i = m_pass_x_size; i > 0; i--, x_ofs += x_stp, p += 3) + adam7_write_pixel_24(x_ofs, y_ofs, p[0], p[1], p[2]); + } + else if (m_dst_bytes_per_pixel == 4) + { + for (i = m_pass_x_size; i > 0; i--, x_ofs += x_stp, p += 4) + adam7_write_pixel_32(x_ofs, y_ofs, p[0], p[1], p[2], p[3]); + } + else + { + assert(0); + } + + switch (m_adam7_pass_num) + { + case 0: + case 1: + case 2: { m_adam7_pass_y += 8; break; } + case 3: + case 4: { m_adam7_pass_y += 4; break; } + case 5: + case 6: { m_adam7_pass_y += 2; break; } + } + + if ((--m_pass_y_left == 0) && (m_adam7_pass_num == 6)) + { + res = decompress_line(&bytes_decoded); + if (res < 0) + return terminate(res); + + if (res == FALSE) + return terminate(PNG_TOO_MUCH_DATA); + + if (bytes_decoded) + return terminate(PNG_TOO_MUCH_DATA); + } + } + + return 0; +} + +void png_decoder::png_decode_end() +{ + uninitialize(); +} + +int png_decoder::png_decode_start() +{ + int status; + + if (m_img_supported_flag != TRUE) + return terminate(m_img_supported_flag); + + switch (m_ihdr.m_color_type) + { + case PNG_COLOR_TYPE_GREYSCALE: + { + if (m_ihdr.m_bit_depth == 16) + { + // This is a special case. We can't pass back 8-bit samples and let the caller decide on transparency because the PNG is 16-bits. + // So we expand to 8-bit Gray-Alpha and handle transparency during decoding. + // We don't do this with all grayscale cases because that would require more code to deal with 1/2/4bpp expansion. + m_dec_bytes_per_pixel = (m_ihdr.m_bit_depth + 7) / 8; + m_dst_bytes_per_pixel = 2; + + m_src_bytes_per_line = (((uint32_t)m_ihdr.m_width * m_ihdr.m_bit_depth) + 7) / 8; + m_dst_bytes_per_line = 2 * m_ihdr.m_width; + + m_pProcess_func = unpack_grey_16_2; + } + else + { + m_dec_bytes_per_pixel = (m_ihdr.m_bit_depth + 7) / 8; + m_dst_bytes_per_pixel = 1; + + m_src_bytes_per_line = (((uint32_t)m_ihdr.m_width * m_ihdr.m_bit_depth) + 7) / 8; + m_dst_bytes_per_line = m_ihdr.m_width; + + if (m_ihdr.m_bit_depth == 1) + m_pProcess_func = unpack_grey_1; + else if (m_ihdr.m_bit_depth == 2) + m_pProcess_func = unpack_grey_2; + else if (m_ihdr.m_bit_depth == 4) + m_pProcess_func = unpack_grey_4; + else + m_pProcess_func = unpack_grey_8; + } + + break; + } + case PNG_COLOR_TYPE_PALETTIZED: + { + m_dec_bytes_per_pixel = (m_ihdr.m_bit_depth + 7) / 8; + m_dst_bytes_per_pixel = 1; + + m_src_bytes_per_line = (((uint32_t)m_ihdr.m_width * m_ihdr.m_bit_depth) + 7) / 8; + m_dst_bytes_per_line = m_ihdr.m_width; + + if (m_ihdr.m_bit_depth == 1) + m_pProcess_func = unpack_grey_1; + else if (m_ihdr.m_bit_depth == 2) + m_pProcess_func = unpack_grey_2; + else if (m_ihdr.m_bit_depth == 4) + m_pProcess_func = unpack_grey_4; + else if (m_ihdr.m_bit_depth == 8) + m_pProcess_func = unpack_grey_8; + else if (m_ihdr.m_bit_depth == 16) + m_pProcess_func = unpack_grey_16; + + break; + } + case PNG_COLOR_TYPE_TRUECOLOR: + { + // We always pass back alpha with transparency handling. + m_dec_bytes_per_pixel = 3 * (m_ihdr.m_bit_depth / 8); + m_dst_bytes_per_pixel = 4; + + m_src_bytes_per_line = ((uint32_t)m_ihdr.m_width * m_dec_bytes_per_pixel); + m_dst_bytes_per_line = 4 * m_ihdr.m_width; + + if (m_ihdr.m_bit_depth == 8) + m_pProcess_func = unpack_true_8; + else if (m_ihdr.m_bit_depth == 16) + m_pProcess_func = unpack_true_16; + + break; + } + case PNG_COLOR_TYPE_GREYSCALE_ALPHA: + { + m_dec_bytes_per_pixel = 2 * (m_ihdr.m_bit_depth / 8); + m_dst_bytes_per_pixel = 2; + + m_src_bytes_per_line = ((uint32_t)m_ihdr.m_width * m_dec_bytes_per_pixel); + m_dst_bytes_per_line = m_ihdr.m_width * 2; + + if (m_ihdr.m_bit_depth == 8) + m_pProcess_func = unpack_grey_alpha_8; + else if (m_ihdr.m_bit_depth == 16) + m_pProcess_func = unpack_grey_alpha_16; + + break; + } + case PNG_COLOR_TYPE_TRUECOLOR_ALPHA: + { + m_dec_bytes_per_pixel = 4 * (m_ihdr.m_bit_depth / 8); + m_dst_bytes_per_pixel = 4; + + m_src_bytes_per_line = ((uint32_t)m_ihdr.m_width * m_dec_bytes_per_pixel); + m_dst_bytes_per_line = 4 * m_ihdr.m_width; + + if (m_ihdr.m_bit_depth == 8) + m_pProcess_func = unpack_true_alpha_8; + else + m_pProcess_func = unpack_true_alpha_16; + + break; + } + } + + m_dec_bytes_per_line = m_src_bytes_per_line + 1; + + m_pPre_line_buf = (uint8_t*)png_calloc(m_src_bytes_per_line); + m_pCur_line_buf = (uint8_t*)png_calloc(m_dec_bytes_per_line); + m_pPro_line_buf = (uint8_t*)png_calloc(m_dst_bytes_per_line); + + if (!m_pPre_line_buf || !m_pCur_line_buf || !m_pPro_line_buf) + return terminate(PNG_NOTENOUGHMEM); + + m_inflate_src_buf_ofs = PNG_INFLATE_SRC_BUF_SIZE; + + int res = mz_inflateInit(&m_inflator); + if (res != 0) + return terminate(PNG_DECERROR); + + if (m_ihdr.m_ilace_type == 1) + { + int i; + uint32_t total_lines, lines_processed; + + m_adam7_pass_size_x[0] = adam7_pass_size(m_ihdr.m_width, 0, 8); + m_adam7_pass_size_x[1] = adam7_pass_size(m_ihdr.m_width, 4, 8); + m_adam7_pass_size_x[2] = adam7_pass_size(m_ihdr.m_width, 0, 4); + m_adam7_pass_size_x[3] = adam7_pass_size(m_ihdr.m_width, 2, 4); + m_adam7_pass_size_x[4] = adam7_pass_size(m_ihdr.m_width, 0, 2); + m_adam7_pass_size_x[5] = adam7_pass_size(m_ihdr.m_width, 1, 2); + m_adam7_pass_size_x[6] = adam7_pass_size(m_ihdr.m_width, 0, 1); + + m_adam7_pass_size_y[0] = adam7_pass_size(m_ihdr.m_height, 0, 8); + m_adam7_pass_size_y[1] = adam7_pass_size(m_ihdr.m_height, 0, 8); + m_adam7_pass_size_y[2] = adam7_pass_size(m_ihdr.m_height, 4, 8); + m_adam7_pass_size_y[3] = adam7_pass_size(m_ihdr.m_height, 0, 4); + m_adam7_pass_size_y[4] = adam7_pass_size(m_ihdr.m_height, 2, 4); + m_adam7_pass_size_y[5] = adam7_pass_size(m_ihdr.m_height, 0, 2); + m_adam7_pass_size_y[6] = adam7_pass_size(m_ihdr.m_height, 1, 2); + + m_adam7_image_buf.resize(m_dst_bytes_per_line * m_ihdr.m_height); + + m_adam7_pass_num = -1; + + m_pass_y_left = 0; + + total_lines = lines_processed = 0; + + for (i = 0; i < 7; i++) + total_lines += m_adam7_pass_size_y[i]; + + for (; ; ) + { + void* dummy_ptr = nullptr; + uint32_t dummy_len = 0; + + status = png_decode(&dummy_ptr, &dummy_len); + + if (status) + { + if (status == PNG_ALLDONE) + break; + else + { + uninitialize(); + + return status; + } + } + + lines_processed++; + } + + m_adam7_decoded_flag = TRUE; + m_pass_y_left = m_ihdr.m_height; + } + else + { + m_pass_x_size = m_ihdr.m_width; + m_pass_y_left = m_ihdr.m_height; + } + + return 0; +} + +void png_decoder::calc_gamma_table() +{ + if (m_gama_value == 45000) + { + for (int i = 0; i < 256; i++) + m_gamma_table[i] = (uint8_t)i; + return; + } + + float gamma = (float)(m_gama_value) / 100000.0f; + + gamma = 1.0f / (gamma * 2.2f); + + for (int i = 0; i < 256; i++) + { + float temp = powf((float)(i) / 255.0f, gamma) * 255.0f; + + int j = (int)(temp + .5f); + + if (j < 0) + j = 0; + else if (j > 255) + j = 255; + + m_gamma_table[i] = (uint8_t)j; + } +} + +void png_decoder::create_grey_palette() +{ + int i, j; + uint8_t* p = m_img_pal; + + const int img_colors = minimum(256, 1 << m_ihdr.m_bit_depth); + for (i = 0; i < img_colors; i++) + { + j = ((uint32_t)255 * (uint32_t)i) / (img_colors - 1); + + *p++ = (uint8_t)j; + *p++ = (uint8_t)j; + *p++ = (uint8_t)j; + } +} + +int png_decoder::read_signature() +{ + if (m_pFile->read(m_temp_buf, 8) != 8) + return terminate(PNG_UNKNOWNTYPE); + + if ((m_temp_buf[0] != 137) || + (m_temp_buf[1] != 80) || + (m_temp_buf[2] != 78) || + (m_temp_buf[3] != 71) || + (m_temp_buf[4] != 13) || + (m_temp_buf[5] != 10) || + (m_temp_buf[6] != 26) || + (m_temp_buf[7] != 10)) + { + return terminate(PNG_UNKNOWNTYPE); + } + + return 0; +} + +int png_decoder::read_ihdr_chunk() +{ + int res = fetch_next_chunk_init(); + if (res < 0) + return res; + + if ((m_chunk_name[0] != 'I') || (m_chunk_name[1] != 'H') || (m_chunk_name[2] != 'D') || (m_chunk_name[3] != 'R') || (m_chunk_size != 13)) + return terminate(PNG_NO_IHDR); + + int64_t v64 = fetch_next_chunk_dword(); + if (v64 < 0) + return (int)v64; + m_ihdr.m_width = (uint32_t)v64; + + v64 = fetch_next_chunk_dword(); + if (v64 < 0) + return (int)v64; + m_ihdr.m_height = (uint32_t)v64; + + if ((m_ihdr.m_width == 0) || (m_ihdr.m_width > MAX_SUPPORTED_RES)) + return terminate(PNG_BAD_WIDTH); + + if ((m_ihdr.m_height == 0) || (m_ihdr.m_height > MAX_SUPPORTED_RES)) + return terminate(PNG_BAD_HEIGHT); + + int v = fetch_next_chunk_byte(); + if (v < 0) + return v; + m_ihdr.m_bit_depth = (uint8_t)v; + + v = fetch_next_chunk_byte(); + if (v < 0) + return v; + m_ihdr.m_color_type = (uint8_t)v; + + v = fetch_next_chunk_byte(); + if (v < 0) + return v; + m_ihdr.m_comp_type = (uint8_t)v; + + v = fetch_next_chunk_byte(); + if (v < 0) + return v; + m_ihdr.m_filter_type = (uint8_t)v; + + v = fetch_next_chunk_byte(); + if (v < 0) + return v; + m_ihdr.m_ilace_type = (uint8_t)v; + + if (m_ihdr.m_comp_type != 0) + m_img_supported_flag = PNG_UNS_COMPRESSION; + + if (m_ihdr.m_filter_type != 0) + m_img_supported_flag = PNG_UNS_FILTER; + + if (m_ihdr.m_ilace_type > 1) + m_img_supported_flag = PNG_UNS_ILACE; + + switch (m_ihdr.m_color_type) + { + case PNG_COLOR_TYPE_GREYSCALE: + { + switch (m_ihdr.m_bit_depth) + { + case 1: + case 2: + case 4: + case 8: + case 16: + { + break; + } + default: + return terminate(PNG_BAD_BIT_DEPTH); + } + + break; + } + case PNG_COLOR_TYPE_PALETTIZED: + { + switch (m_ihdr.m_bit_depth) + { + case 1: + case 2: + case 4: + case 8: + { + break; + } + default: + return terminate(PNG_BAD_BIT_DEPTH); + } + + break; + } + case PNG_COLOR_TYPE_TRUECOLOR: + case PNG_COLOR_TYPE_GREYSCALE_ALPHA: + case PNG_COLOR_TYPE_TRUECOLOR_ALPHA: + { + switch (m_ihdr.m_bit_depth) + { + case 8: + case 16: + { + break; + } + default: + return terminate(PNG_BAD_BIT_DEPTH); + } + + break; + } + default: + return terminate(PNG_UNS_COLOR_TYPE); + } + + return 0; +} + +int png_decoder::read_bkgd_chunk() +{ + m_bkgd_flag = TRUE; + + if (m_ihdr.m_color_type == PNG_COLOR_TYPE_PALETTIZED) + { + int v = fetch_next_chunk_byte(); + if (v < 0) + return v; + m_bkgd_value[0] = v; + } + else if ((m_ihdr.m_color_type == PNG_COLOR_TYPE_GREYSCALE) || (m_ihdr.m_color_type == PNG_COLOR_TYPE_GREYSCALE_ALPHA)) + { + int v = fetch_next_chunk_word(); + if (v < 0) + return v; + m_bkgd_value[0] = v; + } + else if ((m_ihdr.m_color_type == PNG_COLOR_TYPE_TRUECOLOR) || (m_ihdr.m_color_type == PNG_COLOR_TYPE_TRUECOLOR_ALPHA)) + { + int v = fetch_next_chunk_word(); + if (v < 0) + return v; + m_bkgd_value[0] = v; + + v = fetch_next_chunk_word(); + if (v < 0) + return v; + m_bkgd_value[1] = v; + + v = fetch_next_chunk_word(); + if (v < 0) + return v; + m_bkgd_value[2] = v; + } + + return 0; +} + +int png_decoder::read_gama_chunk() +{ + m_gama_flag = TRUE; + + int64_t v = fetch_next_chunk_dword(); + if (v < 0) + return (int)v; + + m_gama_value = (uint32_t)v; + + return 0; +} + +int png_decoder::read_trns_chunk() +{ + int i; + + m_trns_flag = TRUE; + + if (m_ihdr.m_color_type == PNG_COLOR_TYPE_PALETTIZED) + { + for (i = 0; i < 256; i++) + m_trns_value[i] = 255; + + const uint32_t img_colors = 1 << m_ihdr.m_bit_depth; + if (m_chunk_size > (uint32_t)img_colors) + return terminate(PNG_BAD_TRNS_CHUNK); + + for (i = 0; i < (int)m_chunk_size; i++) + { + int v = fetch_next_chunk_byte(); + if (v < 0) + return v; + m_trns_value[i] = v; + } + } + else if (m_ihdr.m_color_type == PNG_COLOR_TYPE_GREYSCALE) + { + int v = fetch_next_chunk_word(); + if (v < 0) + return v; + m_trns_value[0] = v; + } + else if (m_ihdr.m_color_type == PNG_COLOR_TYPE_TRUECOLOR) + { + int v = fetch_next_chunk_word(); + if (v < 0) + return v; + m_trns_value[0] = v; + + v = fetch_next_chunk_word(); + if (v < 0) + return v; + m_trns_value[1] = v; + + v = fetch_next_chunk_word(); + if (v < 0) + return v; + m_trns_value[2] = v; + } + else + { + return terminate(PNG_BAD_TRNS_CHUNK); + } + return 0; +} + +int png_decoder::read_plte_chunk() +{ + int i, j; + uint8_t* p; + + if (m_plte_flag) + return terminate(PNG_BAD_PLTE_CHUNK); + + m_plte_flag = TRUE; + + memset(m_img_pal, 0, 768); + + if (m_chunk_size % 3) + return terminate(PNG_BAD_PLTE_CHUNK); + + j = m_chunk_size / 3; + + const int img_colors = minimum(256, 1 << m_ihdr.m_bit_depth); + if (j > img_colors) + return terminate(PNG_BAD_PLTE_CHUNK); + + if ((m_ihdr.m_color_type == PNG_COLOR_TYPE_GREYSCALE) || + (m_ihdr.m_color_type == PNG_COLOR_TYPE_GREYSCALE_ALPHA)) + return terminate(PNG_BAD_PLTE_CHUNK); + + p = m_img_pal; + + for (i = 0; i < j; i++) + { + int v = fetch_next_chunk_byte(); + if (v < 0) + return v; + *p++ = (uint8_t)v; + + v = fetch_next_chunk_byte(); + if (v < 0) + return v; + *p++ = (uint8_t)v; + + v = fetch_next_chunk_byte(); + if (v < 0) + return v; + *p++ = (uint8_t)v; + } + + return 0; +} + +int png_decoder::find_idat_chunk() +{ + for (; ; ) + { + int res = fetch_next_chunk_init(); + if (res < 0) + return res; + + if (m_chunk_name[0] & 32) /* ancillary? */ + { + if ((m_chunk_name[0] == 'b') && (m_chunk_name[1] == 'K') && (m_chunk_name[2] == 'G') && (m_chunk_name[3] == 'D')) + { + res = read_bkgd_chunk(); + if (res < 0) + return res; + } + else if ((m_chunk_name[0] == 'g') && (m_chunk_name[1] == 'A') && (m_chunk_name[2] == 'M') && (m_chunk_name[3] == 'A')) + { + res = read_gama_chunk(); + if (res < 0) + return res; + } + else if ((m_chunk_name[0] == 't') && (m_chunk_name[1] == 'R') && (m_chunk_name[2] == 'N') && (m_chunk_name[3] == 'S')) + { + res = read_trns_chunk(); + if (res < 0) + return res; + } + } + else + { + if ((m_chunk_name[0] == 'P') && (m_chunk_name[1] == 'L') && (m_chunk_name[2] == 'T') && (m_chunk_name[3] == 'E')) + { + res = read_plte_chunk(); + if (res < 0) + return res; + } + else if ((m_chunk_name[0] == 'I') && (m_chunk_name[1] == 'D') && (m_chunk_name[2] == 'A') && (m_chunk_name[3] == 'T')) + { + break; + } + else + { + m_img_supported_flag = PNG_UNS_CRITICAL_CHUNK; + } + } + } + + return 0; +} + +png_decoder::png_decoder() +{ + clear(); +} + +png_decoder::~png_decoder() +{ + uninitialize(); +} + +void png_decoder::clear() +{ + clear_obj(m_pMalloc_blocks); + + m_pFile = nullptr; + + clear_obj(m_img_pal); + + m_img_supported_flag = FALSE; + + m_adam7_image_buf.clear(); + + clear_obj(m_ihdr); + + m_chunk_flag = FALSE; + m_chunk_size = 0; + m_chunk_left = 0; + m_chunk_crc32 = 0; + clear_obj(m_chunk_name); + + m_end_of_idat_chunks = 0; + + m_dec_bytes_per_pixel = 0; + m_dst_bytes_per_pixel = 0; + + m_dec_bytes_per_line = 0; + m_src_bytes_per_line = 0; + m_dst_bytes_per_line = 0; + + m_pProcess_func = nullptr; + + m_pPre_line_buf = nullptr; + m_pCur_line_buf = nullptr; + m_pPro_line_buf = nullptr; + + m_bkgd_flag = FALSE; + clear_obj(m_bkgd_value); + + m_gama_flag = FALSE; + m_gama_value = 0; + + m_plte_flag = FALSE; + + m_trns_flag = FALSE; + clear_obj(m_trns_value); + + clear_obj(m_inflator); + + m_inflate_src_buf_ofs = 0; + m_inflate_src_buf_size = 0; + m_inflate_dst_buf_ofs = 0; + + m_inflate_eof_flag = FALSE; + + clear_obj(m_trns_value); + + m_pass_x_size = 0; + m_pass_y_left = 0; + + m_adam7_pass_num = 0; + m_adam7_pass_y = 0; + clear_obj(m_adam7_pass_size_x); + clear_obj(m_adam7_pass_size_y); + + m_adam7_decoded_flag = FALSE; + + m_scanned_flag = false; + + m_terminate_status = 0; +} + +int png_decoder::png_scan(png_file *pFile) +{ + m_pFile = pFile; + + m_img_supported_flag = TRUE; + m_terminate_status = 0; + + int res = read_signature(); + if (res != 0) + return res; + + res = read_ihdr_chunk(); + if (res != 0) + return res; + + res = find_idat_chunk(); + if (res != 0) + return res; + + if (m_gama_flag) + calc_gamma_table(); + + if (m_ihdr.m_color_type == PNG_COLOR_TYPE_PALETTIZED) + { + if (!m_plte_flag) + return terminate(PNG_MISSING_PALETTE); + } + else if ((m_ihdr.m_color_type == PNG_COLOR_TYPE_GREYSCALE) || (m_ihdr.m_color_type == PNG_COLOR_TYPE_GREYSCALE_ALPHA)) + { + create_grey_palette(); + } + + m_scanned_flag = true; + + return 0; +} + +static inline uint8_t get_709_luma(uint32_t r, uint32_t g, uint32_t b) +{ + return (uint8_t)((13938U * r + 46869U * g + 4729U * b + 32768U) >> 16U); +} + +bool get_png_info(const void* pImage_buf, size_t buf_size, png_info &info) +{ + memset(&info, 0, sizeof(info)); + + if ((!pImage_buf) || (buf_size < MIN_PNG_SIZE)) + return false; + + png_readonly_memory_file mf; + mf.init(pImage_buf, buf_size); + + png_decoder dec; + + int status = dec.png_scan(&mf); + if ((status != 0) || (dec.m_img_supported_flag != TRUE)) + return false; + + info.m_width = dec.m_ihdr.m_width; + info.m_height = dec.m_ihdr.m_height; + info.m_bit_depth = dec.m_ihdr.m_bit_depth; + info.m_color_type = dec.m_ihdr.m_color_type; + info.m_has_gamma = dec.m_gama_flag != 0; + info.m_gamma_value = dec.m_gama_value; + info.m_has_trns = dec.m_trns_flag != 0; + + switch (dec.m_ihdr.m_color_type) + { + case PNG_COLOR_TYPE_GREYSCALE: + info.m_num_chans = dec.m_trns_flag ? 2 : 1; + break; + case PNG_COLOR_TYPE_GREYSCALE_ALPHA: + info.m_num_chans = 2; + break; + case PNG_COLOR_TYPE_PALETTIZED: + case PNG_COLOR_TYPE_TRUECOLOR: + info.m_num_chans = dec.m_trns_flag ? 4 : 3; + break; + case PNG_COLOR_TYPE_TRUECOLOR_ALPHA: + info.m_num_chans = 4; + break; + default: + assert(0); + break; + } + + return true; +} + +void* load_png(const void* pImage_buf, size_t buf_size, uint32_t desired_chans, uint32_t& width, uint32_t& height, uint32_t& num_chans) +{ + width = 0; + height = 0; + num_chans = 0; + + if ((!pImage_buf) || (buf_size < MIN_PNG_SIZE)) + { + assert(0); + return nullptr; + } + + if (desired_chans > 4) + { + assert(0); + return nullptr; + } + + png_readonly_memory_file mf; + mf.init(pImage_buf, buf_size); + + png_decoder dec; + + int status = dec.png_scan(&mf); + if ((status != 0) || (dec.m_img_supported_flag != TRUE)) + return nullptr; + + uint32_t colortype = dec.m_ihdr.m_color_type; + switch (colortype) + { + case PNG_COLOR_TYPE_GREYSCALE: + num_chans = dec.m_trns_flag ? 2 : 1; + break; + case PNG_COLOR_TYPE_GREYSCALE_ALPHA: + num_chans = 2; + break; + case PNG_COLOR_TYPE_PALETTIZED: + case PNG_COLOR_TYPE_TRUECOLOR: + num_chans = dec.m_trns_flag ? 4 : 3; + break; + case PNG_COLOR_TYPE_TRUECOLOR_ALPHA: + num_chans = 4; + break; + default: + assert(0); + break; + } + + if (!desired_chans) + desired_chans = num_chans; + +#if 0 + printf("lode_png: %ux%u bitdepth: %u colortype: %u trns: %u ilace: %u\n", + dec.m_ihdr.m_width, + dec.m_ihdr.m_height, + dec.m_ihdr.m_bit_depth, + dec.m_ihdr.m_color_type, + dec.m_trns_flag, + dec.m_ihdr.m_ilace_type); +#endif + + width = dec.m_ihdr.m_width; + height = dec.m_ihdr.m_height; + uint32_t bitdepth = dec.m_ihdr.m_bit_depth; + uint32_t pitch = width * desired_chans; + + uint64_t total_size = (uint64_t)pitch * height; + if (total_size > 0x7FFFFFFFULL) + return nullptr; + + uint8_t* pBuf = (uint8_t*)malloc((size_t)total_size); + if (!pBuf) + return nullptr; + + if (dec.png_decode_start() != 0) + { + free(pBuf); + return nullptr; + } + + uint8_t* pDst = pBuf; + + for (uint32_t y = 0; y < height; y++, pDst += pitch) + { + uint8_t* pLine; + uint32_t line_bytes; + if (dec.png_decode((void**)&pLine, &line_bytes) != 0) + { + free(pBuf); + return nullptr; + } + + // This conversion matrix handles converting RGB->Luma, converting grayscale samples to 8-bit samples, converting palettized images, and PNG transparency. + switch (colortype) + { + case PNG_COLOR_TYPE_GREYSCALE: + { + uint32_t trans_value = dec.m_trns_value[0]; + + switch (desired_chans) + { + case 1: + if (bitdepth == 16) + { + assert(line_bytes == width * 2); + + for (uint32_t i = 0; i < width; i++) + pDst[i] = dec.m_img_pal[pLine[i * 2 + 0] * 3]; + } + else if (bitdepth == 8) + { + assert(line_bytes == width); + memcpy(pDst, pLine, pitch); + } + else + { + assert(line_bytes == width); + for (uint32_t i = 0; i < width; i++) + pDst[i] = dec.m_img_pal[pLine[i] * 3]; + } + break; + case 2: + if (bitdepth == 16) + { + assert(line_bytes == width * 2); + for (uint32_t i = 0; i < width; i++) + { + pDst[i * 2 + 0] = dec.m_img_pal[pLine[i * 2 + 0] * 3]; + pDst[i * 2 + 1] = pLine[i * 2 + 1]; + } + } + else if (dec.m_trns_flag) + { + assert(line_bytes == width); + for (uint32_t i = 0; i < width; i++) + { + pDst[i * 2 + 0] = dec.m_img_pal[pLine[i] * 3]; + pDst[i * 2 + 1] = (pLine[i] == trans_value) ? 0 : 255; + } + } + else + { + assert(line_bytes == width); + for (uint32_t i = 0; i < width; i++) + { + pDst[i * 2 + 0] = dec.m_img_pal[pLine[i] * 3]; + pDst[i * 2 + 1] = 255; + } + } + break; + case 3: + if (bitdepth == 16) + { + assert(line_bytes == width * 2); + for (uint32_t i = 0; i < width; i++) + { + uint8_t c = dec.m_img_pal[pLine[i * 2 + 0] * 3]; + pDst[i * 3 + 0] = c; + pDst[i * 3 + 1] = c; + pDst[i * 3 + 2] = c; + } + } + else + { + assert(line_bytes == width); + for (uint32_t i = 0; i < width; i++) + { + uint8_t c = dec.m_img_pal[pLine[i] * 3]; + pDst[i * 3 + 0] = c; + pDst[i * 3 + 1] = c; + pDst[i * 3 + 2] = c; + } + } + break; + case 4: + if (bitdepth == 16) + { + assert(line_bytes == width * 2); + for (uint32_t i = 0; i < width; i++) + { + uint8_t c = dec.m_img_pal[pLine[i * 2 + 0] * 3]; + pDst[i * 4 + 0] = c; + pDst[i * 4 + 1] = c; + pDst[i * 4 + 2] = c; + pDst[i * 4 + 3] = pLine[i * 2 + 1]; + } + } + else if (dec.m_trns_flag) + { + assert(line_bytes == width); + for (uint32_t i = 0; i < width; i++) + { + uint8_t c = dec.m_img_pal[pLine[i] * 3]; + pDst[i * 4 + 0] = c; + pDst[i * 4 + 1] = c; + pDst[i * 4 + 2] = c; + pDst[i * 4 + 3] = (pLine[i] == trans_value) ? 0 : 255; + } + } + else + { + assert(line_bytes == width); + for (uint32_t i = 0; i < width; i++) + { + uint8_t c = dec.m_img_pal[pLine[i] * 3]; + pDst[i * 4 + 0] = c; + pDst[i * 4 + 1] = c; + pDst[i * 4 + 2] = c; + pDst[i * 4 + 3] = 255; + } + } + break; + } + + break; + } + case PNG_COLOR_TYPE_GREYSCALE_ALPHA: + { + assert(line_bytes == width * 2); + + switch (desired_chans) + { + case 1: + for (uint32_t i = 0; i < width; i++) + pDst[i] = dec.m_img_pal[pLine[i * 2 + 0] * 3]; + break; + case 2: + assert(line_bytes == pitch); + if (bitdepth >= 8) + memcpy(pDst, pLine, pitch); + else + { + for (uint32_t i = 0; i < width; i++) + { + pDst[i * 2 + 0] = dec.m_img_pal[pLine[i * 2 + 0] * 3]; + pDst[i * 2 + 1] = pLine[i * 2 + 1]; + } + } + break; + case 3: + for (uint32_t i = 0; i < width; i++) + { + uint8_t c = dec.m_img_pal[pLine[i * 2 + 0] * 3]; + pDst[i * 3 + 0] = c; + pDst[i * 3 + 1] = c; + pDst[i * 3 + 2] = c; + } + break; + case 4: + for (uint32_t i = 0; i < width; i++) + { + uint8_t c = dec.m_img_pal[pLine[i * 2 + 0] * 3]; + pDst[i * 4 + 0] = c; + pDst[i * 4 + 1] = c; + pDst[i * 4 + 2] = c; + pDst[i * 4 + 3] = pLine[i * 2 + 1]; + } + break; + } + + break; + } + case PNG_COLOR_TYPE_PALETTIZED: + { + assert(line_bytes == width); + + switch (desired_chans) + { + case 1: + for (uint32_t i = 0; i < width; i++) + { + const uint8_t* p = &dec.m_img_pal[pLine[i] * 3]; + pDst[i] = get_709_luma(p[0], p[1], p[2]); + } + break; + case 2: + if (dec.m_trns_flag) + { + for (uint32_t i = 0; i < width; i++) + { + const uint8_t* p = &dec.m_img_pal[pLine[i] * 3]; + pDst[i * 2 + 0] = get_709_luma(p[0], p[1], p[2]); + pDst[i * 2 + 1] = (uint8_t)dec.m_trns_value[pLine[i]]; + } + } + else + { + for (uint32_t i = 0; i < width; i++) + { + const uint8_t* p = &dec.m_img_pal[pLine[i] * 3]; + pDst[i * 2 + 0] = get_709_luma(p[0], p[1], p[2]); + pDst[i * 2 + 1] = 255; + } + } + break; + case 3: + for (uint32_t i = 0; i < width; i++) + { + const uint8_t* p = &dec.m_img_pal[pLine[i] * 3]; + pDst[i * 3 + 0] = p[0]; + pDst[i * 3 + 1] = p[1]; + pDst[i * 3 + 2] = p[2]; + } + break; + case 4: + if (dec.m_trns_flag) + { + for (uint32_t i = 0; i < width; i++) + { + const uint8_t* p = &dec.m_img_pal[pLine[i] * 3]; + pDst[i * 4 + 0] = p[0]; + pDst[i * 4 + 1] = p[1]; + pDst[i * 4 + 2] = p[2]; + pDst[i * 4 + 3] = (uint8_t)dec.m_trns_value[pLine[i]]; + } + } + else + { + for (uint32_t i = 0; i < width; i++) + { + const uint8_t* p = &dec.m_img_pal[pLine[i] * 3]; + pDst[i * 4 + 0] = p[0]; + pDst[i * 4 + 1] = p[1]; + pDst[i * 4 + 2] = p[2]; + pDst[i * 4 + 3] = 255; + } + } + break; + } + + break; + } + case PNG_COLOR_TYPE_TRUECOLOR: + case PNG_COLOR_TYPE_TRUECOLOR_ALPHA: + { + assert(line_bytes == width * 4); + + switch (desired_chans) + { + case 1: + for (uint32_t i = 0; i < width; i++) + { + const uint8_t* p = &pLine[i * 4]; + pDst[i] = get_709_luma(p[0], p[1], p[2]); + } + break; + case 2: + for (uint32_t i = 0; i < width; i++) + { + const uint8_t* p = &pLine[i * 4]; + pDst[i * 2 + 0] = get_709_luma(p[0], p[1], p[2]); + pDst[i * 2 + 1] = p[3]; + } + break; + case 3: + for (uint32_t i = 0; i < width; i++) + { + const uint8_t* p = &pLine[i * 4]; + pDst[i * 3 + 0] = p[0]; + pDst[i * 3 + 1] = p[1]; + pDst[i * 3 + 2] = p[2]; + } + break; + case 4: + memcpy(pDst, pLine, pitch); + break; + } + + break; + } + default: + assert(0); + break; + } + + } // y + + return pBuf; +} + +} // namespace pv_png + +/* + This is free and unencumbered software released into the public domain. + + Anyone is free to copy, modify, publish, use, compile, sell, or + distribute this software, either in source code form or as a compiled + binary, for any purpose, commercial or non-commercial, and by any + means. + + In jurisdictions that recognize copyright laws, the author or authors + of this software dedicate any and all copyright interest in the + software to the public domain. We make this dedication for the benefit + of the public at large and to the detriment of our heirs and + successors. We intend this dedication to be an overt act of + relinquishment in perpetuity of all present and future rights to this + software under copyright law. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR + OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + OTHER DEALINGS IN THE SOFTWARE. + + For more information, please refer to <http://unlicense.org/> + + Richard Geldreich, Jr. + 1/20/2022 +*/ diff --git a/thirdparty/basis_universal/encoder/pvpngreader.h b/thirdparty/basis_universal/encoder/pvpngreader.h new file mode 100644 index 0000000000..4f3fe46b82 --- /dev/null +++ b/thirdparty/basis_universal/encoder/pvpngreader.h @@ -0,0 +1,48 @@ +// pngreader.h - Public Domain - see unlicense at bottom of pvpngreader.cpp +#pragma once +#include <stdint.h> + +namespace pv_png +{ + // PNG color types + enum + { + PNG_COLOR_TYPE_GREYSCALE = 0, + PNG_COLOR_TYPE_TRUECOLOR = 2, + PNG_COLOR_TYPE_PALETTIZED = 3, + PNG_COLOR_TYPE_GREYSCALE_ALPHA = 4, + PNG_COLOR_TYPE_TRUECOLOR_ALPHA = 6 + }; + + // PNG file description + struct png_info + { + uint32_t m_width; + uint32_t m_height; + + uint32_t m_num_chans; // The number of channels, factoring in transparency. Ranges from [1-4]. + + uint32_t m_bit_depth; // PNG ihdr bit depth: 1, 2, 4, 8 or 16 + uint32_t m_color_type; // PNG ihdr color type, PNG_COLOR_TYPE_GRAYSCALE etc. + + bool m_has_gamma; // true if the PNG file had a GAMA chunk + uint32_t m_gamma_value; // PNG GAMA chunk value, scaled by 100000 + + bool m_has_trns; // true if the PNG file used colorkey transparency + }; + + // Retrieved information about the PNG file. + // Returns false on any errors. + bool get_png_info(const void* pImage_buf, size_t buf_size, png_info& info); + + // Input parameters: + // pImage_buf, buf_size - pointer to PNG image data + // desired_chans - desired number of output channels. 0=auto, 1=grayscale, 2=grayscale alpha, 3=24bpp RGB, 4=32bpp RGBA + // + // Output parameters: + // width, height - PNG image resolution + // num_chans - actual number of channels in PNG, from [1,4] (factoring in transparency) + // + // Returns nullptr on any errors. + void* load_png(const void* pImage_buf, size_t buf_size, uint32_t desired_chans, uint32_t &width, uint32_t &height, uint32_t& num_chans); +} diff --git a/thirdparty/basis_universal/transcoder/basisu.h b/thirdparty/basis_universal/transcoder/basisu.h index f33baf67c8..1230b59ec6 100644 --- a/thirdparty/basis_universal/transcoder/basisu.h +++ b/thirdparty/basis_universal/transcoder/basisu.h @@ -21,6 +21,11 @@ #pragma warning (disable : 4127) // warning C4127: conditional expression is constant #pragma warning (disable : 4530) // C++ exception handler used, but unwind semantics are not enabled. + // Slamming this off always for v1.16 because we've gotten rid of most std containers. + #ifndef BASISU_NO_ITERATOR_DEBUG_LEVEL + #define BASISU_NO_ITERATOR_DEBUG_LEVEL (1) + #endif + #ifndef BASISU_NO_ITERATOR_DEBUG_LEVEL //#define _HAS_ITERATOR_DEBUGGING 0 @@ -165,6 +170,10 @@ namespace basisu { if (n) { + if (vec.size()) + { + assert((pObjs + n) <= vec.begin() || (pObjs >= vec.end())); + } const size_t cur_s = vec.size(); vec.resize(cur_s + n); memcpy(&vec[cur_s], pObjs, sizeof(R) * n); @@ -173,6 +182,7 @@ namespace basisu template<typename T> inline void append_vector(T &vec, const T &other_vec) { + assert(&vec != &other_vec); if (other_vec.size()) append_vector(vec, &other_vec[0], other_vec.size()); } diff --git a/thirdparty/basis_universal/transcoder/basisu_containers.h b/thirdparty/basis_universal/transcoder/basisu_containers.h index 1ca4bab307..d3e14369ba 100644 --- a/thirdparty/basis_universal/transcoder/basisu_containers.h +++ b/thirdparty/basis_universal/transcoder/basisu_containers.h @@ -12,6 +12,12 @@ #define HAS_MALLOC_USABLE_SIZE 1 #endif +// Set to 1 to always check vector operator[], front(), and back() even in release. +#define BASISU_VECTOR_FORCE_CHECKING 0 + +// If 1, the vector container will not query the CRT to get the size of resized memory blocks. +#define BASISU_VECTOR_DETERMINISTIC 1 + #ifdef _MSC_VER #define BASISU_FORCE_INLINE __forceinline #else @@ -279,7 +285,10 @@ namespace basisu m_size = other.m_size; if (BASISU_IS_BITWISE_COPYABLE(T)) - memcpy(m_p, other.m_p, m_size * sizeof(T)); + { + if ((m_p) && (other.m_p)) + memcpy(m_p, other.m_p, m_size * sizeof(T)); + } else { T* pDst = m_p; @@ -320,7 +329,10 @@ namespace basisu } if (BASISU_IS_BITWISE_COPYABLE(T)) - memcpy(m_p, other.m_p, other.m_size * sizeof(T)); + { + if ((m_p) && (other.m_p)) + memcpy(m_p, other.m_p, other.m_size * sizeof(T)); + } else { T* pDst = m_p; @@ -348,20 +360,81 @@ namespace basisu // operator[] will assert on out of range indices, but in final builds there is (and will never be) any range checking on this method. //BASISU_FORCE_INLINE const T& operator[] (uint32_t i) const { assert(i < m_size); return m_p[i]; } //BASISU_FORCE_INLINE T& operator[] (uint32_t i) { assert(i < m_size); return m_p[i]; } - + +#if !BASISU_VECTOR_FORCE_CHECKING BASISU_FORCE_INLINE const T& operator[] (size_t i) const { assert(i < m_size); return m_p[i]; } BASISU_FORCE_INLINE T& operator[] (size_t i) { assert(i < m_size); return m_p[i]; } +#else + BASISU_FORCE_INLINE const T& operator[] (size_t i) const + { + if (i >= m_size) + { + fprintf(stderr, "operator[] invalid index: %u, max entries %u, type size %u\n", (uint32_t)i, m_size, (uint32_t)sizeof(T)); + abort(); + } + return m_p[i]; + } + BASISU_FORCE_INLINE T& operator[] (size_t i) + { + if (i >= m_size) + { + fprintf(stderr, "operator[] invalid index: %u, max entries %u, type size %u\n", (uint32_t)i, m_size, (uint32_t)sizeof(T)); + abort(); + } + return m_p[i]; + } +#endif // at() always includes range checking, even in final builds, unlike operator []. // The first element is returned if the index is out of range. BASISU_FORCE_INLINE const T& at(size_t i) const { assert(i < m_size); return (i >= m_size) ? m_p[0] : m_p[i]; } BASISU_FORCE_INLINE T& at(size_t i) { assert(i < m_size); return (i >= m_size) ? m_p[0] : m_p[i]; } - + +#if !BASISU_VECTOR_FORCE_CHECKING BASISU_FORCE_INLINE const T& front() const { assert(m_size); return m_p[0]; } BASISU_FORCE_INLINE T& front() { assert(m_size); return m_p[0]; } BASISU_FORCE_INLINE const T& back() const { assert(m_size); return m_p[m_size - 1]; } BASISU_FORCE_INLINE T& back() { assert(m_size); return m_p[m_size - 1]; } +#else + BASISU_FORCE_INLINE const T& front() const + { + if (!m_size) + { + fprintf(stderr, "front: vector is empty, type size %u\n", (uint32_t)sizeof(T)); + abort(); + } + return m_p[0]; + } + BASISU_FORCE_INLINE T& front() + { + if (!m_size) + { + fprintf(stderr, "front: vector is empty, type size %u\n", (uint32_t)sizeof(T)); + abort(); + } + return m_p[0]; + } + + BASISU_FORCE_INLINE const T& back() const + { + if(!m_size) + { + fprintf(stderr, "back: vector is empty, type size %u\n", (uint32_t)sizeof(T)); + abort(); + } + return m_p[m_size - 1]; + } + BASISU_FORCE_INLINE T& back() + { + if (!m_size) + { + fprintf(stderr, "back: vector is empty, type size %u\n", (uint32_t)sizeof(T)); + abort(); + } + return m_p[m_size - 1]; + } +#endif BASISU_FORCE_INLINE const T* get_ptr() const { return m_p; } BASISU_FORCE_INLINE T* get_ptr() { return m_p; } @@ -952,6 +1025,8 @@ namespace basisu // Caller is granting ownership of the indicated heap block. // Block must have size constructed elements, and have enough room for capacity elements. + // The block must have been allocated using malloc(). + // Important: This method is used in Basis Universal. If you change how this container allocates memory, you'll need to change any users of this method. inline bool grant_ownership(T* p, uint32_t size, uint32_t capacity) { // To to prevent the caller from obviously shooting themselves in the foot. diff --git a/thirdparty/basis_universal/transcoder/basisu_containers_impl.h b/thirdparty/basis_universal/transcoder/basisu_containers_impl.h index 6555171419..d5cb61569b 100644 --- a/thirdparty/basis_universal/transcoder/basisu_containers_impl.h +++ b/thirdparty/basis_universal/transcoder/basisu_containers_impl.h @@ -55,7 +55,9 @@ namespace basisu abort(); } -#ifdef _MSC_VER +#if BASISU_VECTOR_DETERMINISTIC + actual_size = desired_size; +#elif defined(_MSC_VER) actual_size = _msize(new_p); #elif HAS_MALLOC_USABLE_SIZE actual_size = malloc_usable_size(new_p); @@ -82,7 +84,9 @@ namespace basisu abort(); } -#ifdef _MSC_VER +#if BASISU_VECTOR_DETERMINISTIC + actual_size = desired_size; +#elif defined(_MSC_VER) actual_size = _msize(new_p); #elif HAS_MALLOC_USABLE_SIZE actual_size = malloc_usable_size(new_p); diff --git a/thirdparty/basis_universal/transcoder/basisu_global_selector_cb.h b/thirdparty/basis_universal/transcoder/basisu_global_selector_cb.h deleted file mode 100644 index 8ab5098898..0000000000 --- a/thirdparty/basis_universal/transcoder/basisu_global_selector_cb.h +++ /dev/null @@ -1,272 +0,0 @@ -// Copyright (C) 2019-2020 Binomial LLC. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -{ -0x0, 0x505, 0x5555, 0x5F5F, 0x5055050, 0x5055F5F, 0x50AAA551, 0xFAA5A5AA, 0x6AAA5095, 0x41E6FBAB, 0x19AE99F5, 0x1057AAA4, 0x54005A1A, 0x4459AEAF, 0x56015B, 0xBAA9A554, -0x4335E5E0, 0xD9FE5FBB, 0x2525256A, 0x9AE892, 0xC0D5FAF5, 0x5BA5E641, 0x7EDEC8B8, 0xBB671211, 0x4C9844EE, 0xEE042415, 0xE5663EAE, 0x90909091, 0xAAA45AFF, 0x15556E1D, 0xA6959195, 0x4BFF8BF, -0x5166AAF, 0x15490065, 0x6F5BAFAF, 0xFF00FF00, 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a/thirdparty/basis_universal/transcoder/basisu_global_selector_palette.h +++ /dev/null @@ -1,675 +0,0 @@ -// basisu_global_selector_palette.h -// Copyright (C) 2019-2021 Binomial LLC. All Rights Reserved. -// -// TODO: NONE of this is used in .basis/.ktx2 files. It will be deleted soon. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -#pragma once -#include "basisu_transcoder_internal.h" -#include <algorithm> - -namespace basist -{ - class etc1_global_palette_entry_modifier - { - public: - enum { cTotalBits = 15, cTotalValues = 1 << cTotalBits }; - - etc1_global_palette_entry_modifier(uint32_t index = 0) - { -#ifdef _DEBUG - static bool s_tested; - if (!s_tested) - { - s_tested = true; - for (uint32_t i = 0; i < cTotalValues; i++) - { - etc1_global_palette_entry_modifier m(i); - etc1_global_palette_entry_modifier n = m; - - assert(n.get_index() == i); - } - } -#endif - - set_index(index); - } - - void set_index(uint32_t index) - { - assert(index < cTotalValues); - m_rot = index & 3; - m_flip = (index >> 2) & 1; - m_inv = (index >> 3) & 1; - m_contrast = (index >> 4) & 3; - m_shift = (index >> 6) & 1; - m_median = (index >> 7) & 1; - m_div = (index >> 8) & 1; - m_rand = (index >> 9) & 1; - m_dilate = (index >> 10) & 1; - m_shift_x = (index >> 11) & 1; - m_shift_y = (index >> 12) & 1; - m_erode = (index >> 13) & 1; - m_high_pass = (index >> 14) & 1; - } - - uint32_t get_index() const - { - return m_rot | (m_flip << 2) | (m_inv << 3) | (m_contrast << 4) | (m_shift << 6) | (m_median << 7) | (m_div << 8) | (m_rand << 9) | (m_dilate << 10) | (m_shift_x << 11) | (m_shift_y << 12) | (m_erode << 13) | (m_high_pass << 14); - } - - void clear() - { - basisu::clear_obj(*this); - } - - uint8_t m_contrast; - bool m_rand; - bool m_median; - bool m_div; - bool m_shift; - bool m_inv; - bool m_flip; - bool m_dilate; - bool m_shift_x; - bool m_shift_y; - bool m_erode; - bool m_high_pass; - uint8_t m_rot; - }; - - enum modifier_types - { - cModifierContrast, - cModifierRand, - cModifierMedian, - cModifierDiv, - cModifierShift, - cModifierInv, - cModifierFlippedAndRotated, - cModifierDilate, - cModifierShiftX, - cModifierShiftY, - cModifierErode, - cModifierHighPass, - cTotalModifiers - }; - -#define ETC1_GLOBAL_SELECTOR_CODEBOOK_MAX_MOD_BITS (etc1_global_palette_entry_modifier::cTotalBits) - - struct etc1_selector_palette_entry - { - etc1_selector_palette_entry() - { - clear(); - } - - void clear() - { - basisu::clear_obj(*this); - } - - uint8_t operator[] (uint32_t i) const { assert(i < 16); return m_selectors[i]; } - uint8_t&operator[] (uint32_t i) { assert(i < 16); return m_selectors[i]; } - - void set_uint32(uint32_t v) - { - for (uint32_t byte_index = 0; byte_index < 4; byte_index++) - { - uint32_t b = (v >> (byte_index * 8)) & 0xFF; - - m_selectors[byte_index * 4 + 0] = b & 3; - m_selectors[byte_index * 4 + 1] = (b >> 2) & 3; - m_selectors[byte_index * 4 + 2] = (b >> 4) & 3; - m_selectors[byte_index * 4 + 3] = (b >> 6) & 3; - } - } - - uint32_t get_uint32() const - { - return get_byte(0) | (get_byte(1) << 8) | (get_byte(2) << 16) | (get_byte(3) << 24); - } - - uint32_t get_byte(uint32_t byte_index) const - { - assert(byte_index < 4); - - return m_selectors[byte_index * 4 + 0] | - (m_selectors[byte_index * 4 + 1] << 2) | - (m_selectors[byte_index * 4 + 2] << 4) | - (m_selectors[byte_index * 4 + 3] << 6); - } - - uint8_t operator()(uint32_t x, uint32_t y) const { assert((x < 4) && (y < 4)); return m_selectors[x + y * 4]; } - uint8_t&operator()(uint32_t x, uint32_t y) { assert((x < 4) && (y < 4)); return m_selectors[x + y * 4]; } - - uint32_t calc_distance(const etc1_selector_palette_entry &other) const - { - uint32_t dist = 0; - for (uint32_t i = 0; i < 8; i++) - { - int delta = static_cast<int>(m_selectors[i]) - static_cast<int>(other.m_selectors[i]); - dist += delta * delta; - } - return dist; - } - -#if 0 - uint32_t calc_hamming_dist(const etc1_selector_palette_entry &other) const - { - uint32_t dist = 0; - for (uint32_t i = 0; i < 4; i++) - dist += g_hamming_dist[get_byte(i) ^ other.get_byte(i)]; - return dist; - } -#endif - - etc1_selector_palette_entry get_inverted() const - { - etc1_selector_palette_entry result; - - for (uint32_t i = 0; i < 16; i++) - result.m_selectors[i] = 3 - m_selectors[i]; - - return result; - } - - etc1_selector_palette_entry get_divided() const - { - etc1_selector_palette_entry result; - - const uint8_t div_selector[4] = { 2, 0, 3, 1 }; - - for (uint32_t i = 0; i < 16; i++) - result.m_selectors[i] = div_selector[m_selectors[i]]; - - return result; - } - - etc1_selector_palette_entry get_shifted(int delta) const - { - etc1_selector_palette_entry result; - - for (uint32_t i = 0; i < 16; i++) - result.m_selectors[i] = static_cast<uint8_t>(basisu::clamp<int>(m_selectors[i] + delta, 0, 3)); - - return result; - } - - etc1_selector_palette_entry get_randomized() const - { - uint32_t seed = get_uint32(); - - etc1_selector_palette_entry result; - - for (uint32_t y = 0; y < 4; y++) - { - for (uint32_t x = 0; x < 4; x++) - { - int s = (*this)(x, y); - - // between 0 and 10 - uint32_t i = basisd_urand(seed, 6) + basisd_urand(seed, 6); - if (i == 0) - s -= 2; - else if (i == 10) - s += 2; - else if (i < 3) - s -= 1; - else if (i > 7) - s += 1; - - result(x, y) = static_cast<uint8_t>(basisu::clamp<int>(s, 0, 3)); - } - } - - return result; - } - - etc1_selector_palette_entry get_contrast(int table_index) const - { - assert(table_index < 4); - - etc1_selector_palette_entry result; - - static const uint8_t s_contrast_tables[4][4] = - { - { 0, 1, 2, 3 }, // not used - { 0, 0, 3, 3 }, - { 1, 1, 2, 2 }, - { 1, 1, 3, 3 } - }; - - for (uint32_t i = 0; i < 16; i++) - { - result[i] = s_contrast_tables[table_index][(*this)[i]]; - } - - return result; - } - - etc1_selector_palette_entry get_dilated() const - { - etc1_selector_palette_entry result; - - for (uint32_t y = 0; y < 4; y++) - { - for (uint32_t x = 0; x < 4; x++) - { - uint32_t max_selector = 0; - - for (int yd = -1; yd <= 1; yd++) - { - int fy = y + yd; - if ((fy < 0) || (fy > 3)) - continue; - - for (int xd = -1; xd <= 1; xd++) - { - int fx = x + xd; - if ((fx < 0) || (fx > 3)) - continue; - - max_selector = basisu::maximum<uint32_t>(max_selector, (*this)(fx, fy)); - } - } - - result(x, y) = static_cast<uint8_t>(max_selector); - } - } - - return result; - } - - etc1_selector_palette_entry get_eroded() const - { - etc1_selector_palette_entry result; - - for (uint32_t y = 0; y < 4; y++) - { - for (uint32_t x = 0; x < 4; x++) - { - uint32_t min_selector = 99; - - for (int yd = -1; yd <= 1; yd++) - { - int fy = y + yd; - if ((fy < 0) || (fy > 3)) - continue; - - for (int xd = -1; xd <= 1; xd++) - { - int fx = x + xd; - if ((fx < 0) || (fx > 3)) - continue; - - min_selector = basisu::minimum<uint32_t>(min_selector, (*this)(fx, fy)); - } - } - - result(x, y) = static_cast<uint8_t>(min_selector); - } - } - - return result; - } - - etc1_selector_palette_entry get_shift_x() const - { - etc1_selector_palette_entry result; - - for (uint32_t y = 0; y < 4; y++) - { - for (uint32_t x = 0; x < 4; x++) - { - int sx = x - 1; - if (sx < 0) - sx = 0; - - result(x, y) = (*this)(sx, y); - } - } - - return result; - } - - etc1_selector_palette_entry get_shift_y() const - { - etc1_selector_palette_entry result; - - for (uint32_t y = 0; y < 4; y++) - { - int sy = y - 1; - if (sy < 0) - sy = 3; - - for (uint32_t x = 0; x < 4; x++) - result(x, y) = (*this)(x, sy); - } - - return result; - } - - etc1_selector_palette_entry get_median() const - { - etc1_selector_palette_entry result; - - for (uint32_t y = 0; y < 4; y++) - { - for (uint32_t x = 0; x < 4; x++) - { - // ABC - // D F - // GHI - - uint8_t selectors[8]; - uint32_t n = 0; - - for (int yd = -1; yd <= 1; yd++) - { - int fy = y + yd; - if ((fy < 0) || (fy > 3)) - continue; - - for (int xd = -1; xd <= 1; xd++) - { - if ((xd | yd) == 0) - continue; - - int fx = x + xd; - if ((fx < 0) || (fx > 3)) - continue; - - selectors[n++] = (*this)(fx, fy); - } - } - - std::sort(selectors, selectors + n); - - result(x, y) = selectors[n / 2]; - } - } - - return result; - } - - etc1_selector_palette_entry get_high_pass() const - { - etc1_selector_palette_entry result; - - static const int kernel[3][3] = - { - { 0, -1, 0 }, - { -1, 8, -1 }, - { 0, -1, 0 } - }; - - for (uint32_t y = 0; y < 4; y++) - { - for (uint32_t x = 0; x < 4; x++) - { - // ABC - // D F - // GHI - - int sum = 0; - - for (int yd = -1; yd <= 1; yd++) - { - int fy = y + yd; - fy = basisu::clamp<int>(fy, 0, 3); - - for (int xd = -1; xd <= 1; xd++) - { - int fx = x + xd; - fx = basisu::clamp<int>(fx, 0, 3); - - int k = (*this)(fx, fy); - sum += k * kernel[yd + 1][xd + 1]; - } - } - - sum = sum / 4; - - result(x, y) = static_cast<uint8_t>(basisu::clamp<int>(sum, 0, 3)); - } - } - - return result; - } - - etc1_selector_palette_entry get_flipped_and_rotated(bool flip, uint32_t rotation_index) const - { - etc1_selector_palette_entry temp; - - if (flip) - { - for (uint32_t y = 0; y < 4; y++) - for (uint32_t x = 0; x < 4; x++) - temp(x, y) = (*this)(x, 3 - y); - } - else - { - temp = *this; - } - - etc1_selector_palette_entry result; - - switch (rotation_index) - { - case 0: - result = temp; - break; - case 1: - for (uint32_t y = 0; y < 4; y++) - for (uint32_t x = 0; x < 4; x++) - result(x, y) = temp(y, 3 - x); - break; - case 2: - for (uint32_t y = 0; y < 4; y++) - for (uint32_t x = 0; x < 4; x++) - result(x, y) = temp(3 - x, 3 - y); - break; - case 3: - for (uint32_t y = 0; y < 4; y++) - for (uint32_t x = 0; x < 4; x++) - result(x, y) = temp(3 - y, x); - break; - default: - assert(0); - break; - } - - return result; - } - - etc1_selector_palette_entry get_modified(const etc1_global_palette_entry_modifier &modifier) const - { - etc1_selector_palette_entry r(*this); - - if (modifier.m_shift_x) - r = r.get_shift_x(); - - if (modifier.m_shift_y) - r = r.get_shift_y(); - - r = r.get_flipped_and_rotated(modifier.m_flip != 0, modifier.m_rot); - - if (modifier.m_dilate) - r = r.get_dilated(); - - if (modifier.m_erode) - r = r.get_eroded(); - - if (modifier.m_high_pass) - r = r.get_high_pass(); - - if (modifier.m_rand) - r = r.get_randomized(); - - if (modifier.m_div) - r = r.get_divided(); - - if (modifier.m_shift) - r = r.get_shifted(1); - - if (modifier.m_contrast) - r = r.get_contrast(modifier.m_contrast); - - if (modifier.m_inv) - r = r.get_inverted(); - - if (modifier.m_median) - r = r.get_median(); - - return r; - } - - etc1_selector_palette_entry apply_modifier(modifier_types mod_type, const etc1_global_palette_entry_modifier &modifier) const - { - switch (mod_type) - { - case cModifierContrast: - return get_contrast(modifier.m_contrast); - case cModifierRand: - return get_randomized(); - case cModifierMedian: - return get_median(); - case cModifierDiv: - return get_divided(); - case cModifierShift: - return get_shifted(1); - case cModifierInv: - return get_inverted(); - case cModifierFlippedAndRotated: - return get_flipped_and_rotated(modifier.m_flip != 0, modifier.m_rot); - case cModifierDilate: - return get_dilated(); - case cModifierShiftX: - return get_shift_x(); - case cModifierShiftY: - return get_shift_y(); - case cModifierErode: - return get_eroded(); - case cModifierHighPass: - return get_high_pass(); - default: - assert(0); - break; - } - - return *this; - } - - etc1_selector_palette_entry get_modified(const etc1_global_palette_entry_modifier &modifier, uint32_t num_order, const modifier_types *pOrder) const - { - etc1_selector_palette_entry r(*this); - - for (uint32_t i = 0; i < num_order; i++) - { - r = r.apply_modifier(pOrder[i], modifier); - } - - return r; - } - - bool operator< (const etc1_selector_palette_entry &other) const - { - for (uint32_t i = 0; i < 16; i++) - { - if (m_selectors[i] < other.m_selectors[i]) - return true; - else if (m_selectors[i] != other.m_selectors[i]) - return false; - } - - return false; - } - - bool operator== (const etc1_selector_palette_entry &other) const - { - for (uint32_t i = 0; i < 16; i++) - { - if (m_selectors[i] != other.m_selectors[i]) - return false; - } - - return true; - } - - private: - uint8_t m_selectors[16]; - }; - - typedef basisu::vector<etc1_selector_palette_entry> etc1_selector_palette_entry_vec; - - extern const uint32_t g_global_selector_cb[]; - extern const uint32_t g_global_selector_cb_size; - -#define ETC1_GLOBAL_SELECTOR_CODEBOOK_MAX_PAL_BITS (12) - - struct etc1_global_selector_codebook_entry_id - { - uint32_t m_palette_index; - etc1_global_palette_entry_modifier m_modifier; - - etc1_global_selector_codebook_entry_id(uint32_t palette_index, const etc1_global_palette_entry_modifier &modifier) : m_palette_index(palette_index), m_modifier(modifier) { } - - etc1_global_selector_codebook_entry_id() { } - - void set(uint32_t palette_index, const etc1_global_palette_entry_modifier &modifier) { m_palette_index = palette_index; m_modifier = modifier; } - }; - - typedef basisu::vector<etc1_global_selector_codebook_entry_id> etc1_global_selector_codebook_entry_id_vec; - - class etc1_global_selector_codebook - { - public: - etc1_global_selector_codebook() { } - etc1_global_selector_codebook(uint32_t N, const uint32_t *pEntries) { init(N, pEntries); } - - void init(uint32_t N, const uint32_t* pEntries); - - void print_code(FILE *pFile); - - void clear() - { - m_palette.clear(); - } - - uint32_t size() const { return (uint32_t)m_palette.size(); } - - const etc1_selector_palette_entry_vec &get_palette() const - { - return m_palette; - } - - etc1_selector_palette_entry get_entry(uint32_t palette_index) const - { - return m_palette[palette_index]; - } - - etc1_selector_palette_entry get_entry(uint32_t palette_index, const etc1_global_palette_entry_modifier &modifier) const - { - return m_palette[palette_index].get_modified(modifier); - } - - etc1_selector_palette_entry get_entry(const etc1_global_selector_codebook_entry_id &id) const - { - return m_palette[id.m_palette_index].get_modified(id.m_modifier); - } - - etc1_selector_palette_entry_vec m_palette; - }; - -} // namespace basist diff --git a/thirdparty/basis_universal/transcoder/basisu_transcoder.cpp b/thirdparty/basis_universal/transcoder/basisu_transcoder.cpp index 0b3733385d..630731900f 100644 --- a/thirdparty/basis_universal/transcoder/basisu_transcoder.cpp +++ b/thirdparty/basis_universal/transcoder/basisu_transcoder.cpp @@ -37,6 +37,14 @@ #endif #endif +// Using unaligned loads and stores causes errors when using UBSan. Jam it off. +#if defined(__has_feature) +#if __has_feature(undefined_behavior_sanitizer) +#undef BASISD_USE_UNALIGNED_WORD_READS +#define BASISD_USE_UNALIGNED_WORD_READS 0 +#endif +#endif + #define BASISD_SUPPORTED_BASIS_VERSION (0x13) #ifndef BASISD_SUPPORT_KTX2 @@ -224,32 +232,7 @@ namespace basist return static_cast<uint16_t>(~crc); } - - const uint32_t g_global_selector_cb[] = -#include "basisu_global_selector_cb.h" - ; - - const uint32_t g_global_selector_cb_size = sizeof(g_global_selector_cb) / sizeof(g_global_selector_cb[0]); - - void etc1_global_selector_codebook::init(uint32_t N, const uint32_t* pEntries) - { - m_palette.resize(N); - for (uint32_t i = 0; i < N; i++) - m_palette[i].set_uint32(pEntries[i]); - } - - void etc1_global_selector_codebook::print_code(FILE* pFile) - { - fprintf(pFile, "{\n"); - for (uint32_t i = 0; i < m_palette.size(); i++) - { - fprintf(pFile, "0x%X,", m_palette[i].get_uint32()); - if ((i & 15) == 15) - fprintf(pFile, "\n"); - } - fprintf(pFile, "\n}\n"); - } - + enum etc_constants { cETC1BytesPerBlock = 8U, @@ -7532,9 +7515,8 @@ namespace basist } #endif // BASISD_SUPPORT_PVRTC2 - basisu_lowlevel_etc1s_transcoder::basisu_lowlevel_etc1s_transcoder(const etc1_global_selector_codebook* pGlobal_sel_codebook) : + basisu_lowlevel_etc1s_transcoder::basisu_lowlevel_etc1s_transcoder() : m_pGlobal_codebook(nullptr), - m_pGlobal_sel_codebook(pGlobal_sel_codebook), m_selector_history_buf_size(0) { } @@ -7641,50 +7623,8 @@ namespace basist if (used_global_selector_cb) { - // global selector palette - uint32_t pal_bits = sym_codec.get_bits(4); - uint32_t mod_bits = sym_codec.get_bits(4); - - basist::huffman_decoding_table mod_model; - if (mod_bits) - { - if (!sym_codec.read_huffman_table(mod_model)) - { - BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: fail 6\n"); - return false; - } - if (!mod_model.is_valid()) - { - BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: fail 6a\n"); - return false; - } - } - - for (uint32_t i = 0; i < num_selectors; i++) - { - uint32_t pal_index = 0; - if (pal_bits) - pal_index = sym_codec.get_bits(pal_bits); - - uint32_t mod_index = 0; - if (mod_bits) - mod_index = sym_codec.decode_huffman(mod_model); - - if (pal_index >= m_pGlobal_sel_codebook->size()) - { - BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: fail 7z\n"); - return false; - } - - const etc1_selector_palette_entry e(m_pGlobal_sel_codebook->get_entry(pal_index, etc1_global_palette_entry_modifier(mod_index))); - - // TODO: Optimize this - for (uint32_t y = 0; y < 4; y++) - for (uint32_t x = 0; x < 4; x++) - m_local_selectors[i].set_selector(x, y, e[x + y * 4]); - - m_local_selectors[i].init_flags(); - } + BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: global selector codebooks are unsupported\n"); + return false; } else { @@ -7692,146 +7632,70 @@ namespace basist if (used_hybrid_selector_cb) { - const uint32_t pal_bits = sym_codec.get_bits(4); - const uint32_t mod_bits = sym_codec.get_bits(4); - - basist::huffman_decoding_table uses_global_cb_bitflags_model; - if (!sym_codec.read_huffman_table(uses_global_cb_bitflags_model)) - { - BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: fail 7\n"); - return false; - } - if (!uses_global_cb_bitflags_model.is_valid()) - { - BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: fail 7a\n"); - return false; - } - - basist::huffman_decoding_table global_mod_indices_model; - if (mod_bits) - { - if (!sym_codec.read_huffman_table(global_mod_indices_model)) - { - BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: fail 8\n"); - return false; - } - if (!global_mod_indices_model.is_valid()) - { - BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: fail 8a\n"); - return false; - } - } - - uint32_t cur_uses_global_cb_bitflags = 0; - uint32_t uses_global_cb_bitflags_remaining = 0; + BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: hybrid global selector codebooks are unsupported\n"); + return false; + } + + const bool used_raw_encoding = (sym_codec.get_bits(1) == 1); - for (uint32_t q = 0; q < num_selectors; q++) + if (used_raw_encoding) + { + for (uint32_t i = 0; i < num_selectors; i++) { - if (!uses_global_cb_bitflags_remaining) + for (uint32_t j = 0; j < 4; j++) { - cur_uses_global_cb_bitflags = sym_codec.decode_huffman(uses_global_cb_bitflags_model); + uint32_t cur_byte = sym_codec.get_bits(8); - uses_global_cb_bitflags_remaining = 8; + for (uint32_t k = 0; k < 4; k++) + m_local_selectors[i].set_selector(k, j, (cur_byte >> (k * 2)) & 3); } - uses_global_cb_bitflags_remaining--; - - const bool used_global_cb_flag = (cur_uses_global_cb_bitflags & 1) != 0; - cur_uses_global_cb_bitflags >>= 1; - if (used_global_cb_flag) - { - const uint32_t pal_index = pal_bits ? sym_codec.get_bits(pal_bits) : 0; - const uint32_t mod_index = mod_bits ? sym_codec.decode_huffman(global_mod_indices_model) : 0; - - if (pal_index >= m_pGlobal_sel_codebook->size()) - { - BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: fail 8b\n"); - return false; - } - - const etc1_selector_palette_entry e(m_pGlobal_sel_codebook->get_entry(pal_index, etc1_global_palette_entry_modifier(mod_index))); - - for (uint32_t y = 0; y < 4; y++) - for (uint32_t x = 0; x < 4; x++) - m_local_selectors[q].set_selector(x, y, e[x + y * 4]); - } - else - { - for (uint32_t j = 0; j < 4; j++) - { - uint32_t cur_byte = sym_codec.get_bits(8); - - for (uint32_t k = 0; k < 4; k++) - m_local_selectors[q].set_selector(k, j, (cur_byte >> (k * 2)) & 3); - } - } - - m_local_selectors[q].init_flags(); + m_local_selectors[i].init_flags(); } } else { - const bool used_raw_encoding = (sym_codec.get_bits(1) == 1); + if (!sym_codec.read_huffman_table(delta_selector_pal_model)) + { + BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: fail 10\n"); + return false; + } + + if ((num_selectors > 1) && (!delta_selector_pal_model.is_valid())) + { + BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: fail 10a\n"); + return false; + } + + uint8_t prev_bytes[4] = { 0, 0, 0, 0 }; - if (used_raw_encoding) + for (uint32_t i = 0; i < num_selectors; i++) { - for (uint32_t i = 0; i < num_selectors; i++) + if (!i) { for (uint32_t j = 0; j < 4; j++) { uint32_t cur_byte = sym_codec.get_bits(8); + prev_bytes[j] = static_cast<uint8_t>(cur_byte); for (uint32_t k = 0; k < 4; k++) m_local_selectors[i].set_selector(k, j, (cur_byte >> (k * 2)) & 3); } - m_local_selectors[i].init_flags(); + continue; } - } - else - { - if (!sym_codec.read_huffman_table(delta_selector_pal_model)) - { - BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: fail 10\n"); - return false; - } - - if ((num_selectors > 1) && (!delta_selector_pal_model.is_valid())) - { - BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_palettes: fail 10a\n"); - return false; - } - - uint8_t prev_bytes[4] = { 0, 0, 0, 0 }; - for (uint32_t i = 0; i < num_selectors; i++) + for (uint32_t j = 0; j < 4; j++) { - if (!i) - { - for (uint32_t j = 0; j < 4; j++) - { - uint32_t cur_byte = sym_codec.get_bits(8); - prev_bytes[j] = static_cast<uint8_t>(cur_byte); + int delta_byte = sym_codec.decode_huffman(delta_selector_pal_model); - for (uint32_t k = 0; k < 4; k++) - m_local_selectors[i].set_selector(k, j, (cur_byte >> (k * 2)) & 3); - } - m_local_selectors[i].init_flags(); - continue; - } - - for (uint32_t j = 0; j < 4; j++) - { - int delta_byte = sym_codec.decode_huffman(delta_selector_pal_model); - - uint32_t cur_byte = delta_byte ^ prev_bytes[j]; - prev_bytes[j] = static_cast<uint8_t>(cur_byte); + uint32_t cur_byte = delta_byte ^ prev_bytes[j]; + prev_bytes[j] = static_cast<uint8_t>(cur_byte); - for (uint32_t k = 0; k < 4; k++) - m_local_selectors[i].set_selector(k, j, (cur_byte >> (k * 2)) & 3); - } - m_local_selectors[i].init_flags(); + for (uint32_t k = 0; k < 4; k++) + m_local_selectors[i].set_selector(k, j, (cur_byte >> (k * 2)) & 3); } + m_local_selectors[i].init_flags(); } } } @@ -7899,6 +7763,12 @@ namespace basist } m_selector_history_buf_size = sym_codec.get_bits(13); + // Check for bogus values. + if (!m_selector_history_buf_size) + { + BASISU_DEVEL_ERROR("basisu_lowlevel_etc1s_transcoder::decode_tables: fail 5\n"); + return false; + } sym_codec.stop(); @@ -7979,8 +7849,11 @@ namespace basist decoder_etc_block block; memset(&block, 0, sizeof(block)); + + //block.set_flip_bit(true); + // Setting the flip bit to false to be compatible with the Khronos KDFS. + block.set_flip_bit(false); - block.set_flip_bit(true); block.set_diff_bit(true); void* pPVRTC_work_mem = nullptr; @@ -8741,7 +8614,7 @@ namespace basist if (!output_row_pitch_in_blocks_or_pixels) output_row_pitch_in_blocks_or_pixels = orig_width; - if (!output_rows_in_pixels) + if (!output_rows_in_pixels) output_rows_in_pixels = orig_height; // Now make sure the output buffer is large enough, or we'll overwrite memory. @@ -9440,6 +9313,12 @@ namespace basist { switch (fmt) { + case block_format::cUASTC_4x4: + { + memcpy(pDst_block, pSource_block, sizeof(uastc_block)); + status = true; + break; + } case block_format::cETC1: { if (from_alpha) @@ -9906,8 +9785,7 @@ namespace basist return status; } - basisu_transcoder::basisu_transcoder(const etc1_global_selector_codebook* pGlobal_sel_codebook) : - m_lowlevel_etc1s_decoder(pGlobal_sel_codebook), + basisu_transcoder::basisu_transcoder() : m_ready_to_transcode(false) { } @@ -10778,6 +10656,8 @@ namespace basist return false; } + //const bool transcode_alpha_data_to_opaque_formats = (decode_flags & cDecodeFlagsTranscodeAlphaDataToOpaqueFormats) != 0; + if (decode_flags & cDecodeFlagsPVRTCDecodeToNextPow2) { BASISU_DEVEL_ERROR("basisu_transcoder::transcode_image_level: cDecodeFlagsPVRTCDecodeToNextPow2 currently unsupported\n"); @@ -11001,6 +10881,7 @@ namespace basist case block_format::cRGB565: return "RGB565"; case block_format::cBGR565: return "BGR565"; case block_format::cRGBA4444: return "RGBA4444"; + case block_format::cUASTC_4x4: return "UASTC_4x4"; case block_format::cFXT1_RGB: return "FXT1_RGB"; case block_format::cPVRTC2_4_RGB: return "PVRTC2_4_RGB"; case block_format::cPVRTC2_4_RGBA: return "PVRTC2_4_RGBA"; @@ -12567,12 +12448,8 @@ namespace basist bits = read_bits64(blk.m_bytes, bit_ofs, basisu::minimum<int>(64, 128 - (int)bit_ofs)); else { -#ifdef __EMSCRIPTEN__ bits = blk.m_dwords[2]; bits |= (((uint64_t)blk.m_dwords[3]) << 32U); -#else - bits = blk.m_qwords[1]; -#endif if (bit_ofs >= 64U) bits >>= (bit_ofs - 64U); @@ -16722,8 +16599,8 @@ namespace basist #if BASISD_SUPPORT_KTX2 const uint8_t g_ktx2_file_identifier[12] = { 0xAB, 0x4B, 0x54, 0x58, 0x20, 0x32, 0x30, 0xBB, 0x0D, 0x0A, 0x1A, 0x0A }; - ktx2_transcoder::ktx2_transcoder(basist::etc1_global_selector_codebook* pGlobal_sel_codebook) : - m_etc1s_transcoder(pGlobal_sel_codebook) + ktx2_transcoder::ktx2_transcoder() : + m_etc1s_transcoder() { clear(); } @@ -17334,6 +17211,7 @@ namespace basist bool ktx2_transcoder::decompress_level_data(uint32_t level_index, basisu::uint8_vec& uncomp_data) { + const uint8_t* pComp_data = m_levels[level_index].m_byte_offset + m_pData; const uint64_t comp_size = m_levels[level_index].m_byte_length; const uint64_t uncomp_size = m_levels[level_index].m_uncompressed_byte_length; @@ -17349,7 +17227,7 @@ namespace basist return false; } - if (!uncomp_data.try_resize(uncomp_size)) + if (!uncomp_data.try_resize((size_t)uncomp_size)) { BASISU_DEVEL_ERROR("ktx2_transcoder::decompress_level_data: Out of memory\n"); return false; @@ -17358,7 +17236,6 @@ namespace basist if (m_header.m_supercompression_scheme == KTX2_SS_ZSTANDARD) { #if BASISD_SUPPORT_KTX2_ZSTD - const uint8_t* pComp_data = m_levels[level_index].m_byte_offset + m_pData; size_t actualUncompSize = ZSTD_decompress(uncomp_data.data(), (size_t)uncomp_size, pComp_data, (size_t)comp_size); if (ZSTD_isError(actualUncompSize)) { diff --git a/thirdparty/basis_universal/transcoder/basisu_transcoder.h b/thirdparty/basis_universal/transcoder/basisu_transcoder.h index bf3aed3dc3..3327e8ddb7 100644 --- a/thirdparty/basis_universal/transcoder/basisu_transcoder.h +++ b/thirdparty/basis_universal/transcoder/basisu_transcoder.h @@ -34,7 +34,6 @@ #include "basisu_transcoder_internal.h" #include "basisu_transcoder_uastc.h" -#include "basisu_global_selector_palette.h" #include "basisu_file_headers.h" namespace basist @@ -190,7 +189,7 @@ namespace basist friend class basisu_transcoder; public: - basisu_lowlevel_etc1s_transcoder(const basist::etc1_global_selector_codebook* pGlobal_sel_codebook); + basisu_lowlevel_etc1s_transcoder(); void set_global_codebooks(const basisu_lowlevel_etc1s_transcoder* pGlobal_codebook) { m_pGlobal_codebook = pGlobal_codebook; } const basisu_lowlevel_etc1s_transcoder* get_global_codebooks() const { return m_pGlobal_codebook; } @@ -248,17 +247,13 @@ namespace basist typedef basisu::vector<selector> selector_vec; const selector_vec& get_selectors() const { return m_local_selectors; } - - const etc1_global_selector_codebook* get_global_sel_codebook() const { return m_pGlobal_sel_codebook; } - + private: const basisu_lowlevel_etc1s_transcoder* m_pGlobal_codebook; endpoint_vec m_local_endpoints; selector_vec m_local_selectors; - - const etc1_global_selector_codebook* m_pGlobal_sel_codebook; - + huffman_decoding_table m_endpoint_pred_model, m_delta_endpoint_model, m_selector_model, m_selector_history_buf_rle_model; uint32_t m_selector_history_buf_size; @@ -442,7 +437,7 @@ namespace basist basisu_transcoder& operator= (const basisu_transcoder&); public: - basisu_transcoder(const etc1_global_selector_codebook* pGlobal_sel_codebook); + basisu_transcoder(); // Validates the .basis file. This computes a crc16 over the entire file, so it's slow. bool validate_file_checksums(const void* pData, uint32_t data_size, bool full_validation) const; @@ -770,7 +765,7 @@ namespace basist class ktx2_transcoder { public: - ktx2_transcoder(basist::etc1_global_selector_codebook* pGlobal_sel_codebook); + ktx2_transcoder(); // Frees all allocations, resets object. void clear(); diff --git a/thirdparty/basis_universal/transcoder/basisu_transcoder_internal.h b/thirdparty/basis_universal/transcoder/basisu_transcoder_internal.h index 2422d788a9..776a99861a 100644 --- a/thirdparty/basis_universal/transcoder/basisu_transcoder_internal.h +++ b/thirdparty/basis_universal/transcoder/basisu_transcoder_internal.h @@ -20,8 +20,8 @@ #pragma warning (disable: 4127) // conditional expression is constant #endif -#define BASISD_LIB_VERSION 115 -#define BASISD_VERSION_STRING "01.15" +#define BASISD_LIB_VERSION 116 +#define BASISD_VERSION_STRING "01.16" #ifdef _DEBUG #define BASISD_BUILD_DEBUG @@ -46,18 +46,18 @@ namespace basist { cETC1, // ETC1S RGB cETC2_RGBA, // full ETC2 EAC RGBA8 block - cBC1, // DXT1 RGB - cBC3, // BC4 block followed by a four color BC1 block - cBC4, // DXT5A (alpha block only) - cBC5, // two BC4 blocks + cBC1, // DXT1 RGB + cBC3, // BC4 block followed by a four color BC1 block + cBC4, // DXT5A (alpha block only) + cBC5, // two BC4 blocks cPVRTC1_4_RGB, // opaque-only PVRTC1 4bpp - cPVRTC1_4_RGBA, // PVRTC1 4bpp RGBA - cBC7, // Full BC7 block, any mode + cPVRTC1_4_RGBA, // PVRTC1 4bpp RGBA + cBC7, // Full BC7 block, any mode cBC7_M5_COLOR, // RGB BC7 mode 5 color (writes an opaque mode 5 block) cBC7_M5_ALPHA, // alpha portion of BC7 mode 5 (cBC7_M5_COLOR output data must have been written to the output buffer first to set the mode/rot fields etc.) cETC2_EAC_A8, // alpha block of ETC2 EAC (first 8 bytes of the 16-bit ETC2 EAC RGBA format) cASTC_4x4, // ASTC 4x4 (either color-only or color+alpha). Note that the transcoder always currently assumes sRGB is not enabled when outputting ASTC - // data. If you use a sRGB ASTC format you'll get ~1 LSB of additional error, because of the different way ASTC decoders scale 8-bit endpoints to 16-bits during unpacking. + // data. If you use a sRGB ASTC format you'll get ~1 LSB of additional error, because of the different way ASTC decoders scale 8-bit endpoints to 16-bits during unpacking. cATC_RGB, cATC_RGBA_INTERPOLATED_ALPHA, @@ -72,8 +72,8 @@ namespace basist cIndices, // Used internally: Write 16-bit endpoint and selector indices directly to output (output block must be at least 32-bits) cRGB32, // Writes RGB components to 32bpp output pixels - cRGBA32, // Writes RGB255 components to 32bpp output pixels - cA32, // Writes alpha component to 32bpp output pixels + cRGBA32, // Writes RGB255 components to 32bpp output pixels + cA32, // Writes alpha component to 32bpp output pixels cRGB565, cBGR565, @@ -82,6 +82,8 @@ namespace basist cRGBA4444_ALPHA, cRGBA4444_COLOR_OPAQUE, cRGBA4444, + + cUASTC_4x4, cTotalBlockFormats }; diff --git a/thirdparty/basis_universal/transcoder/basisu_transcoder_uastc.h b/thirdparty/basis_universal/transcoder/basisu_transcoder_uastc.h index d501a2af6e..f91314f4ff 100644 --- a/thirdparty/basis_universal/transcoder/basisu_transcoder_uastc.h +++ b/thirdparty/basis_universal/transcoder/basisu_transcoder_uastc.h @@ -205,10 +205,6 @@ namespace basist { uint8_t m_bytes[16]; uint32_t m_dwords[4]; - -#ifndef __EMSCRIPTEN__ - uint64_t m_qwords[2]; -#endif }; }; diff --git a/thirdparty/fonts/DroidSansFallback.ttf b/thirdparty/fonts/DroidSansFallback.ttf Binary files differdeleted file mode 100644 index 206621fc6c..0000000000 --- a/thirdparty/fonts/DroidSansFallback.ttf +++ /dev/null diff --git a/thirdparty/fonts/DroidSansFallback.woff2 b/thirdparty/fonts/DroidSansFallback.woff2 Binary files differnew file mode 100644 index 0000000000..9dd49d6281 --- /dev/null +++ b/thirdparty/fonts/DroidSansFallback.woff2 diff --git a/thirdparty/fonts/DroidSansJapanese.ttf b/thirdparty/fonts/DroidSansJapanese.ttf Binary files differdeleted file mode 100644 index 412fa3de05..0000000000 --- a/thirdparty/fonts/DroidSansJapanese.ttf +++ /dev/null diff --git 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