diff options
Diffstat (limited to 'thirdparty/basis_universal/transcoder/basisu.h')
| -rw-r--r-- | thirdparty/basis_universal/transcoder/basisu.h | 152 |
1 files changed, 117 insertions, 35 deletions
diff --git a/thirdparty/basis_universal/transcoder/basisu.h b/thirdparty/basis_universal/transcoder/basisu.h index 25600a69bf..f33baf67c8 100644 --- a/thirdparty/basis_universal/transcoder/basisu.h +++ b/thirdparty/basis_universal/transcoder/basisu.h @@ -1,5 +1,5 @@ // basisu.h -// Copyright (C) 2019 Binomial LLC. All Rights Reserved. +// Copyright (C) 2019-2021 Binomial LLC. All Rights Reserved. // Important: If compiling with gcc, be sure strict aliasing is disabled: -fno-strict-aliasing // // Licensed under the Apache License, Version 2.0 (the "License"); @@ -41,10 +41,6 @@ #endif #endif // defined(_DEBUG) || defined(DEBUG) - #ifndef NOMINMAX - #define NOMINMAX - #endif - #endif // BASISU_NO_ITERATOR_DEBUG_LEVEL #endif // _MSC_VER @@ -63,10 +59,11 @@ #include <functional> #include <iterator> #include <type_traits> -#include <vector> #include <assert.h> #include <random> +#include "basisu_containers.h" + #ifdef max #undef max #endif @@ -79,20 +76,20 @@ #define strcasecmp _stricmp #endif -// Set to one to enable debug printf()'s when any errors occur, for development/debugging. -#ifndef BASISU_DEVEL_MESSAGES -#define BASISU_DEVEL_MESSAGES 0 +// Set to one to enable debug printf()'s when any errors occur, for development/debugging. Especially useful for WebGL development. +#ifndef BASISU_FORCE_DEVEL_MESSAGES +#define BASISU_FORCE_DEVEL_MESSAGES 0 #endif #define BASISU_NOTE_UNUSED(x) (void)(x) #define BASISU_ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) #define BASISU_NO_EQUALS_OR_COPY_CONSTRUCT(x) x(const x &) = delete; x& operator= (const x &) = delete; #define BASISU_ASSUME(x) static_assert(x, #x); -#define BASISU_OFFSETOF(s, m) (uint32_t)(intptr_t)(&((s *)(0))->m) +#define BASISU_OFFSETOF(s, m) offsetof(s, m) #define BASISU_STRINGIZE(x) #x #define BASISU_STRINGIZE2(x) BASISU_STRINGIZE(x) -#if BASISU_DEVEL_MESSAGES +#if BASISU_FORCE_DEVEL_MESSAGES #define BASISU_DEVEL_ERROR(...) do { basisu::debug_printf(__VA_ARGS__); } while(0) #else #define BASISU_DEVEL_ERROR(...) @@ -108,26 +105,43 @@ namespace basisu const char BASISU_PATH_SEPERATOR_CHAR = '/'; #endif - typedef std::vector<uint8_t> uint8_vec; - typedef std::vector<int16_t> int16_vec; - typedef std::vector<uint16_t> uint16_vec; - typedef std::vector<uint32_t> uint_vec; - typedef std::vector<uint64_t> uint64_vec; - typedef std::vector<int> int_vec; - typedef std::vector<bool> bool_vec; + typedef basisu::vector<uint8_t> uint8_vec; + typedef basisu::vector<int16_t> int16_vec; + typedef basisu::vector<uint16_t> uint16_vec; + typedef basisu::vector<uint32_t> uint_vec; + typedef basisu::vector<uint64_t> uint64_vec; + typedef basisu::vector<int> int_vec; + typedef basisu::vector<bool> bool_vec; void enable_debug_printf(bool enabled); void debug_printf(const char *pFmt, ...); + template <typename T> inline void clear_obj(T& obj) { memset(&obj, 0, sizeof(obj)); } template <typename T0, typename T1> inline T0 lerp(T0 a, T0 b, T1 c) { return a + (b - a) * c; } template <typename S> inline S maximum(S a, S b) { return (a > b) ? a : b; } template <typename S> inline S maximum(S a, S b, S c) { return maximum(maximum(a, b), c); } + template <typename S> inline S maximum(S a, S b, S c, S d) { return maximum(maximum(maximum(a, b), c), d); } template <typename S> inline S minimum(S a, S b) { return (a < b) ? a : b; } template <typename S> inline S minimum(S a, S b, S c) { return minimum(minimum(a, b), c); } + template <typename S> inline S minimum(S a, S b, S c, S d) { return minimum(minimum(minimum(a, b), c), d); } + + inline float clampf(float value, float low, float high) { if (value < low) value = low; else if (value > high) value = high; return value; } + inline float saturate(float value) { return clampf(value, 0, 1.0f); } + inline uint8_t minimumub(uint8_t a, uint8_t b) { return (a < b) ? a : b; } + inline uint32_t minimumu(uint32_t a, uint32_t b) { return (a < b) ? a : b; } + inline int32_t minimumi(int32_t a, int32_t b) { return (a < b) ? a : b; } + inline float minimumf(float a, float b) { return (a < b) ? a : b; } + inline uint8_t maximumub(uint8_t a, uint8_t b) { return (a > b) ? a : b; } + inline uint32_t maximumu(uint32_t a, uint32_t b) { return (a > b) ? a : b; } + inline int32_t maximumi(int32_t a, int32_t b) { return (a > b) ? a : b; } + inline float maximumf(float a, float b) { return (a > b) ? a : b; } + inline int squarei(int i) { return i * i; } + inline float squaref(float i) { return i * i; } + template<typename T> inline T square(T a) { return a * a; } template <typename S> inline S clamp(S value, S low, S high) { return (value < low) ? low : ((value > high) ? high : value); } @@ -137,12 +151,10 @@ namespace basisu template<typename T> inline void clear_vector(T &vec) { vec.erase(vec.begin(), vec.end()); } template<typename T> inline typename T::value_type *enlarge_vector(T &vec, size_t n) { size_t cs = vec.size(); vec.resize(cs + n); return &vec[cs]; } - template<typename S> inline S square(S val) { return val * val; } - inline bool is_pow2(uint32_t x) { return x && ((x & (x - 1U)) == 0U); } inline bool is_pow2(uint64_t x) { return x && ((x & (x - 1U)) == 0U); } - template<typename T> inline T open_range_check(T v, T minv, T maxv) { assert(v >= minv && v < maxv); return v; } + template<typename T> inline T open_range_check(T v, T minv, T maxv) { assert(v >= minv && v < maxv); BASISU_NOTE_UNUSED(minv); BASISU_NOTE_UNUSED(maxv); return v; } template<typename T> inline T open_range_check(T v, T maxv) { assert(v < maxv); BASISU_NOTE_UNUSED(maxv); return v; } inline uint32_t total_bits(uint32_t v) { uint32_t l = 0; for ( ; v > 0U; ++l) v >>= 1; return l; } @@ -244,27 +256,92 @@ namespace basisu if ((ha <= lb) || (la >= hb)) return false; return true; } + + static inline uint32_t read_le_dword(const uint8_t *pBytes) + { + return (pBytes[3] << 24U) | (pBytes[2] << 16U) | (pBytes[1] << 8U) | (pBytes[0]); + } + + static inline void write_le_dword(uint8_t* pBytes, uint32_t val) + { + pBytes[0] = (uint8_t)val; + pBytes[1] = (uint8_t)(val >> 8U); + pBytes[2] = (uint8_t)(val >> 16U); + pBytes[3] = (uint8_t)(val >> 24U); + } - // Always little endian 2-4 byte unsigned int + // Always little endian 1-8 byte unsigned int template<uint32_t NumBytes> struct packed_uint { uint8_t m_bytes[NumBytes]; - inline packed_uint() { static_assert(NumBytes <= 4, "NumBytes <= 4"); } - inline packed_uint(uint32_t v) { *this = v; } + inline packed_uint() { static_assert(NumBytes <= sizeof(uint64_t), "Invalid NumBytes"); } + inline packed_uint(uint64_t v) { *this = v; } inline packed_uint(const packed_uint& other) { *this = other; } + + inline packed_uint& operator= (uint64_t v) + { + for (uint32_t i = 0; i < NumBytes; i++) + m_bytes[i] = static_cast<uint8_t>(v >> (i * 8)); + return *this; + } - inline packed_uint& operator= (uint32_t v) { for (uint32_t i = 0; i < NumBytes; i++) m_bytes[i] = static_cast<uint8_t>(v >> (i * 8)); return *this; } + inline packed_uint& operator= (const packed_uint& rhs) + { + memcpy(m_bytes, rhs.m_bytes, sizeof(m_bytes)); + return *this; + } inline operator uint32_t() const { switch (NumBytes) { - case 1: return m_bytes[0]; - case 2: return (m_bytes[1] << 8U) | m_bytes[0]; - case 3: return (m_bytes[2] << 16U) | (m_bytes[1] << 8U) | (m_bytes[0]); - default: return (m_bytes[3] << 24U) | (m_bytes[2] << 16U) | (m_bytes[1] << 8U) | (m_bytes[0]); + case 1: + { + return m_bytes[0]; + } + case 2: + { + return (m_bytes[1] << 8U) | m_bytes[0]; + } + case 3: + { + return (m_bytes[2] << 16U) | (m_bytes[1] << 8U) | m_bytes[0]; + } + case 4: + { + return read_le_dword(m_bytes); + } + case 5: + { + uint32_t l = read_le_dword(m_bytes); + uint32_t h = m_bytes[4]; + return static_cast<uint64_t>(l) | (static_cast<uint64_t>(h) << 32U); + } + case 6: + { + uint32_t l = read_le_dword(m_bytes); + uint32_t h = (m_bytes[5] << 8U) | m_bytes[4]; + return static_cast<uint64_t>(l) | (static_cast<uint64_t>(h) << 32U); + } + case 7: + { + uint32_t l = read_le_dword(m_bytes); + uint32_t h = (m_bytes[6] << 16U) | (m_bytes[5] << 8U) | m_bytes[4]; + return static_cast<uint64_t>(l) | (static_cast<uint64_t>(h) << 32U); + } + case 8: + { + uint32_t l = read_le_dword(m_bytes); + uint32_t h = read_le_dword(m_bytes + 4); + return static_cast<uint64_t>(l) | (static_cast<uint64_t>(h) << 32U); + } + default: + { + assert(0); + return 0; + } } } }; @@ -278,7 +355,7 @@ namespace basisu enum { cHuffmanMaxSupportedCodeSize = 16, cHuffmanMaxSupportedInternalCodeSize = 31, - cHuffmanFastLookupBits = 10, cHuffmanFastLookupSize = 1 << cHuffmanFastLookupBits, + cHuffmanFastLookupBits = 10, cHuffmanMaxSymsLog2 = 14, cHuffmanMaxSyms = 1 << cHuffmanMaxSymsLog2, // Small zero runs @@ -308,15 +385,15 @@ namespace basisu // Block-based formats cETC1, // ETC1 cETC1S, // ETC1 (subset: diff colors only, no subblocks) - cETC2_RGB, // ETC2 color block - cETC2_RGBA, // ETC2 alpha block followed by ETC2 color block + cETC2_RGB, // ETC2 color block (basisu doesn't support ETC2 planar/T/H modes - just basic ETC1) + cETC2_RGBA, // ETC2 EAC alpha block followed by ETC2 color block cETC2_ALPHA, // ETC2 EAC alpha block cBC1, // DXT1 - cBC3, // DXT5 (DXT5A block followed by a DXT1 block) + cBC3, // DXT5 (BC4/DXT5A block followed by a BC1/DXT1 block) cBC4, // DXT5A - cBC5, // 3DC/DXN (two DXT5A blocks) + cBC5, // 3DC/DXN (two BC4/DXT5A blocks) cBC7, - cASTC4x4, + cASTC4x4, // LDR only cPVRTC1_4_RGB, cPVRTC1_4_RGBA, cATC_RGB, @@ -325,6 +402,9 @@ namespace basisu cPVRTC2_4_RGBA, cETC2_R11_EAC, cETC2_RG11_EAC, + cUASTC4x4, + cBC1_NV, + cBC1_AMD, // Uncompressed/raw pixels cRGBA32, @@ -343,6 +423,8 @@ namespace basisu case texture_format::cETC2_RGB: case texture_format::cETC2_ALPHA: case texture_format::cBC1: + case texture_format::cBC1_NV: + case texture_format::cBC1_AMD: case texture_format::cBC4: case texture_format::cPVRTC1_4_RGB: case texture_format::cPVRTC1_4_RGBA: |