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-rw-r--r--servers/rendering/shader_preprocessor.h113
1 files changed, 71 insertions, 42 deletions
diff --git a/servers/rendering/shader_preprocessor.h b/servers/rendering/shader_preprocessor.h
index a93fb680dd..6e5533c575 100644
--- a/servers/rendering/shader_preprocessor.h
+++ b/servers/rendering/shader_preprocessor.h
@@ -1,32 +1,32 @@
-/*************************************************************************/
-/* shader_preprocessor.h */
-/*************************************************************************/
-/* This file is part of: */
-/* GODOT ENGINE */
-/* https://godotengine.org */
-/*************************************************************************/
-/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
-/* */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the */
-/* "Software"), to deal in the Software without restriction, including */
-/* without limitation the rights to use, copy, modify, merge, publish, */
-/* distribute, sublicense, and/or sell copies of the Software, and to */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions: */
-/* */
-/* The above copyright notice and this permission notice shall be */
-/* included in all copies or substantial portions of the Software. */
-/* */
-/* 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 OR COPYRIGHT HOLDERS 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. */
-/*************************************************************************/
+/**************************************************************************/
+/* shader_preprocessor.h */
+/**************************************************************************/
+/* This file is part of: */
+/* GODOT ENGINE */
+/* https://godotengine.org */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
+/* */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the */
+/* "Software"), to deal in the Software without restriction, including */
+/* without limitation the rights to use, copy, modify, merge, publish, */
+/* distribute, sublicense, and/or sell copies of the Software, and to */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions: */
+/* */
+/* The above copyright notice and this permission notice shall be */
+/* included in all copies or substantial portions of the Software. */
+/* */
+/* 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 OR COPYRIGHT HOLDERS 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. */
+/**************************************************************************/
#ifndef SHADER_PREPROCESSOR_H
#define SHADER_PREPROCESSOR_H
@@ -50,6 +50,7 @@ public:
COMPLETION_TYPE_DIRECTIVE,
COMPLETION_TYPE_PRAGMA_DIRECTIVE,
COMPLETION_TYPE_PRAGMA,
+ COMPLETION_TYPE_CONDITION,
COMPLETION_TYPE_INCLUDE_PATH,
};
@@ -58,6 +59,14 @@ public:
int line = 0;
};
+ struct Region {
+ String file;
+ int from_line = -1;
+ int to_line = -1;
+ bool enabled = false;
+ Region *parent = nullptr;
+ };
+
private:
struct Token {
char32_t text;
@@ -122,23 +131,34 @@ private:
String body;
};
- struct SkippedCondition {
- int start_line = -1;
- int end_line = -1;
+ struct Branch {
+ Vector<bool> conditions;
+ Branch *parent = nullptr;
+ bool else_defined = false;
+
+ Branch() {}
+
+ Branch(bool p_condition, Branch *p_parent) :
+ parent(p_parent) {
+ conditions.push_back(p_condition);
+ }
};
struct State {
RBMap<String, Define *> defines;
- Vector<bool> skip_stack_else;
+ List<Branch> branches;
+ Branch *current_branch = nullptr;
int condition_depth = 0;
RBSet<String> includes;
List<uint64_t> cyclic_include_hashes; // Holds code hash of includes.
int include_depth = 0;
- String current_include;
+ String current_filename;
String current_shader_type;
String error;
List<FilePosition> include_positions;
- RBMap<String, Vector<SkippedCondition *>> skipped_conditions;
+ bool save_regions = false;
+ RBMap<String, List<Region>> regions;
+ Region *previous_region = nullptr;
bool disabled = false;
CompletionType completion_type = COMPLETION_TYPE_NONE;
HashSet<Ref<ShaderInclude>> shader_includes;
@@ -147,7 +167,6 @@ private:
private:
LocalVector<char32_t> output;
State *state = nullptr;
- bool state_owner = false;
private:
static bool is_char_word(char32_t p_char);
@@ -156,8 +175,17 @@ private:
static String vector_to_string(const LocalVector<char32_t> &p_v, int p_start = 0, int p_end = -1);
static String tokens_to_string(const LocalVector<Token> &p_tokens);
+ void _set_expected_error(const String &p_what, int p_line) {
+ set_error(vformat(RTR("Expected a '%s'."), p_what), p_line);
+ }
+
+ void _set_unexpected_token_error(const String &p_what, int p_line) {
+ set_error(vformat(RTR("Unexpected token '%s'."), p_what), p_line);
+ }
+
void process_directive(Tokenizer *p_tokenizer);
void process_define(Tokenizer *p_tokenizer);
+ void process_elif(Tokenizer *p_tokenizer);
void process_else(Tokenizer *p_tokenizer);
void process_endif(Tokenizer *p_tokenizer);
void process_if(Tokenizer *p_tokenizer);
@@ -167,12 +195,13 @@ private:
void process_pragma(Tokenizer *p_tokenizer);
void process_undef(Tokenizer *p_tokenizer);
- void start_branch_condition(Tokenizer *p_tokenizer, bool p_success);
+ void add_region(int p_line, bool p_enabled, Region *p_parent_region);
+ void start_branch_condition(Tokenizer *p_tokenizer, bool p_success, bool p_continue = false);
+ Error expand_condition(const String &p_string, int p_line, String &r_result);
void expand_output_macros(int p_start, int p_line);
Error expand_macros(const String &p_string, int p_line, String &r_result);
- Error expand_macros(const String &p_string, int p_line, Vector<Pair<String, Define *>> p_defines, String &r_result);
- Error expand_macros_once(const String &p_line, int p_line_number, Pair<String, Define *> p_define_pair, String &r_expanded);
+ bool expand_macros_once(const String &p_line, int p_line_number, const RBMap<String, Define *>::Element *p_define_pair, String &r_expanded);
bool find_match(const String &p_string, const String &p_value, int &r_index, int &r_index_start);
String next_directive(Tokenizer *p_tokenizer, const Vector<String> &p_directives);
@@ -181,16 +210,16 @@ private:
static Define *create_define(const String &p_body);
- void clear();
+ void clear_state();
Error preprocess(State *p_state, const String &p_code, String &r_result);
public:
typedef void (*IncludeCompletionFunction)(List<ScriptLanguage::CodeCompletionOption> *);
- Error preprocess(const String &p_code, String &r_result, String *r_error_text = nullptr, List<FilePosition> *r_error_position = nullptr, HashSet<Ref<ShaderInclude>> *r_includes = nullptr, List<ScriptLanguage::CodeCompletionOption> *r_completion_options = nullptr, IncludeCompletionFunction p_include_completion_func = nullptr);
+ Error preprocess(const String &p_code, const String &p_filename, String &r_result, String *r_error_text = nullptr, List<FilePosition> *r_error_position = nullptr, List<Region> *r_regions = nullptr, HashSet<Ref<ShaderInclude>> *r_includes = nullptr, List<ScriptLanguage::CodeCompletionOption> *r_completion_options = nullptr, List<ScriptLanguage::CodeCompletionOption> *r_completion_defines = nullptr, IncludeCompletionFunction p_include_completion_func = nullptr);
- static void get_keyword_list(List<String> *r_keywords, bool p_include_shader_keywords);
+ static void get_keyword_list(List<String> *r_keywords, bool p_include_shader_keywords, bool p_ignore_context_keywords = false);
static void get_pragma_list(List<String> *r_pragmas);
ShaderPreprocessor();
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-18 19:02:23 +0000