Edit
kc3-lang/angle/src/libGLESv2/formatutils.cpp
Geoff Lang
- src/libGLESv2/formatutils.cpp
-
#include "precompiled.h" // // Copyright (c) 2013 The ANGLE Project Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // // formatutils.cpp: Queries for GL image formats. #include "libGLESv2/formatutils.h" #include "libGLESv2/Context.h" #include "common/mathutil.h" #include "libGLESv2/renderer/Renderer.h" #include "libGLESv2/renderer/imageformats.h" #include "libGLESv2/renderer/copyimage.h" namespace gl { // ES2 requires that format is equal to internal format at all glTex*Image2D entry points and the implementation // can decide the true, sized, internal format. The ES2FormatMap determines the internal format for all valid // format and type combinations. struct FormatTypeInfo { GLenum mInternalFormat; ColorWriteFunction mColorWriteFunction; FormatTypeInfo(GLenum internalFormat, ColorWriteFunction writeFunc) : mInternalFormat(internalFormat), mColorWriteFunction(writeFunc) { } }; typedef std::pair<GLenum, GLenum> FormatTypePair; typedef std::pair<FormatTypePair, FormatTypeInfo> FormatPair; typedef std::map<FormatTypePair, FormatTypeInfo> FormatMap; // A helper function to insert data into the format map with fewer characters. static inline void InsertFormatMapping(FormatMap *map, GLenum format, GLenum type, GLenum internalFormat, ColorWriteFunction writeFunc) { map->insert(FormatPair(FormatTypePair(format, type), FormatTypeInfo(internalFormat, writeFunc))); } FormatMap BuildES2FormatMap() { FormatMap map; using namespace rx; // | Format | Type | Internal format | Color write function | InsertFormatMapping(&map, GL_ALPHA, GL_UNSIGNED_BYTE, GL_ALPHA8_EXT, WriteColor<A8, GLfloat> ); InsertFormatMapping(&map, GL_ALPHA, GL_FLOAT, GL_ALPHA32F_EXT, WriteColor<A32F, GLfloat> ); InsertFormatMapping(&map, GL_ALPHA, GL_HALF_FLOAT_OES, GL_ALPHA16F_EXT, WriteColor<A16F, GLfloat> ); InsertFormatMapping(&map, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_LUMINANCE8_EXT, WriteColor<L8, GLfloat> ); InsertFormatMapping(&map, GL_LUMINANCE, GL_FLOAT, GL_LUMINANCE32F_EXT, WriteColor<L32F, GLfloat> ); InsertFormatMapping(&map, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_LUMINANCE16F_EXT, WriteColor<L16F, GLfloat> ); InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_LUMINANCE8_ALPHA8_EXT, WriteColor<L8A8, GLfloat> ); InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_LUMINANCE_ALPHA32F_EXT, WriteColor<L32A32F, GLfloat> ); InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_LUMINANCE_ALPHA16F_EXT, WriteColor<L16A16F, GLfloat> ); InsertFormatMapping(&map, GL_RED, GL_UNSIGNED_BYTE, GL_R8_EXT, WriteColor<R8, GLfloat> ); InsertFormatMapping(&map, GL_RED, GL_FLOAT, GL_R32F_EXT, WriteColor<R32F, GLfloat> ); InsertFormatMapping(&map, GL_RED, GL_HALF_FLOAT_OES, GL_R16F_EXT, WriteColor<R16F, GLfloat> ); InsertFormatMapping(&map, GL_RG, GL_UNSIGNED_BYTE, GL_RG8_EXT, WriteColor<R8G8, GLfloat> ); InsertFormatMapping(&map, GL_RG, GL_FLOAT, GL_RG32F_EXT, WriteColor<R32G32F, GLfloat> ); InsertFormatMapping(&map, GL_RG, GL_HALF_FLOAT_OES, GL_RG16F_EXT, WriteColor<R16G16F, GLfloat> ); InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_BYTE, GL_RGB8_OES, WriteColor<R8G8B8, GLfloat> ); InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_RGB565, WriteColor<R5G6B5, GLfloat> ); InsertFormatMapping(&map, GL_RGB, GL_FLOAT, GL_RGB32F_EXT, WriteColor<R32G32B32F, GLfloat> ); InsertFormatMapping(&map, GL_RGB, GL_HALF_FLOAT_OES, GL_RGB16F_EXT, WriteColor<R16G16B16F, GLfloat> ); InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_BYTE, GL_RGBA8_OES, WriteColor<R8G8B8A8, GLfloat> ); InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_RGBA4, WriteColor<R4G4B4A4, GLfloat> ); InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_RGB5_A1, WriteColor<R5G5B5A1, GLfloat> ); InsertFormatMapping(&map, GL_RGBA, GL_FLOAT, GL_RGBA32F_EXT, WriteColor<R32G32B32A32F, GLfloat>); InsertFormatMapping(&map, GL_RGBA, GL_HALF_FLOAT_OES, GL_RGBA16F_EXT, WriteColor<R16G16B16A16F, GLfloat>); InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_BGRA8_EXT, WriteColor<B8G8R8A8, GLfloat> ); InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_BGRA4_ANGLEX, WriteColor<B4G4R4A4, GLfloat> ); InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_BGR5_A1_ANGLEX, WriteColor<B5G5R5A1, GLfloat> ); InsertFormatMapping(&map, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, NULL ); InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, NULL ); InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, NULL ); InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, NULL ); InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_DEPTH_COMPONENT16, NULL ); InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_DEPTH_COMPONENT32_OES, NULL ); InsertFormatMapping(&map, GL_DEPTH_STENCIL_OES, GL_UNSIGNED_INT_24_8_OES, GL_DEPTH24_STENCIL8_OES, NULL ); return map; } FormatMap BuildES3FormatMap() { FormatMap map; using namespace rx; // | Format | Type | Internal format | Color write function | InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_BYTE, GL_RGBA8, WriteColor<R8G8B8A8, GLfloat> ); InsertFormatMapping(&map, GL_RGBA, GL_BYTE, GL_RGBA8_SNORM, WriteColor<R8G8B8A8S, GLfloat> ); InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_RGBA4, WriteColor<R4G4B4A4, GLfloat> ); InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_RGB5_A1, WriteColor<R5G5B5A1, GLfloat> ); InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_RGB10_A2, WriteColor<R10G10B10A2, GLfloat> ); InsertFormatMapping(&map, GL_RGBA, GL_FLOAT, GL_RGBA32F, WriteColor<R32G32B32A32F, GLfloat>); InsertFormatMapping(&map, GL_RGBA, GL_HALF_FLOAT, GL_RGBA16F, WriteColor<R16G16B16A16F, GLfloat>); InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_RGBA8UI, WriteColor<R8G8B8A8, GLuint> ); InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_BYTE, GL_RGBA8I, WriteColor<R8G8B8A8S, GLint> ); InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_RGBA16UI, WriteColor<R16G16B16A16, GLuint> ); InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_SHORT, GL_RGBA16I, WriteColor<R16G16B16A16S, GLint> ); InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_RGBA32UI, WriteColor<R32G32B32A32, GLuint> ); InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_INT, GL_RGBA32I, WriteColor<R32G32B32A32S, GLint> ); InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_RGB10_A2UI, WriteColor<R10G10B10A2, GLuint> ); InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_BYTE, GL_RGB8, WriteColor<R8G8B8, GLfloat> ); InsertFormatMapping(&map, GL_RGB, GL_BYTE, GL_RGB8_SNORM, WriteColor<R8G8B8S, GLfloat> ); InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_RGB565, WriteColor<R5G6B5, GLfloat> ); InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_R11F_G11F_B10F, WriteColor<R11G11B10F, GLfloat> ); InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_RGB9_E5, WriteColor<R9G9B9E5, GLfloat> ); InsertFormatMapping(&map, GL_RGB, GL_FLOAT, GL_RGB32F, WriteColor<R32G32B32F, GLfloat> ); InsertFormatMapping(&map, GL_RGB, GL_HALF_FLOAT, GL_RGB16F, WriteColor<R16G16B16F, GLfloat> ); InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_RGB8UI, WriteColor<R8G8B8, GLuint> ); InsertFormatMapping(&map, GL_RGB_INTEGER, GL_BYTE, GL_RGB8I, WriteColor<R8G8B8S, GLint> ); InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_RGB16UI, WriteColor<R16G16B16, GLuint> ); InsertFormatMapping(&map, GL_RGB_INTEGER, GL_SHORT, GL_RGB16I, WriteColor<R16G16B16S, GLint> ); InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_RGB32UI, WriteColor<R32G32B32, GLuint> ); InsertFormatMapping(&map, GL_RGB_INTEGER, GL_INT, GL_RGB32I, WriteColor<R32G32B32S, GLint> ); InsertFormatMapping(&map, GL_RG, GL_UNSIGNED_BYTE, GL_RG8, WriteColor<R8G8, GLfloat> ); InsertFormatMapping(&map, GL_RG, GL_BYTE, GL_RG8_SNORM, WriteColor<R8G8S, GLfloat> ); InsertFormatMapping(&map, GL_RG, GL_FLOAT, GL_RG32F, WriteColor<R32G32F, GLfloat> ); InsertFormatMapping(&map, GL_RG, GL_HALF_FLOAT, GL_RG16F, WriteColor<R16G16F, GLfloat> ); InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_RG8UI, WriteColor<R8G8, GLuint> ); InsertFormatMapping(&map, GL_RG_INTEGER, GL_BYTE, GL_RG8I, WriteColor<R8G8S, GLint> ); InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_RG16UI, WriteColor<R16G16, GLuint> ); InsertFormatMapping(&map, GL_RG_INTEGER, GL_SHORT, GL_RG16I, WriteColor<R16G16S, GLint> ); InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_RG32UI, WriteColor<R32G32, GLuint> ); InsertFormatMapping(&map, GL_RG_INTEGER, GL_INT, GL_RG32I, WriteColor<R32G32S, GLint> ); InsertFormatMapping(&map, GL_RED, GL_UNSIGNED_BYTE, GL_R8, WriteColor<R8, GLfloat> ); InsertFormatMapping(&map, GL_RED, GL_BYTE, GL_R8_SNORM, WriteColor<R8S, GLfloat> ); InsertFormatMapping(&map, GL_RED, GL_FLOAT, GL_R32F, WriteColor<R32F, GLfloat> ); InsertFormatMapping(&map, GL_RED, GL_HALF_FLOAT, GL_R16F, WriteColor<R16F, GLfloat> ); InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_R8UI, WriteColor<R8, GLuint> ); InsertFormatMapping(&map, GL_RED_INTEGER, GL_BYTE, GL_R8I, WriteColor<R8S, GLint> ); InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_R16UI, WriteColor<R16, GLuint> ); InsertFormatMapping(&map, GL_RED_INTEGER, GL_SHORT, GL_R16I, WriteColor<R16S, GLint> ); InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_R32UI, WriteColor<R32, GLuint> ); InsertFormatMapping(&map, GL_RED_INTEGER, GL_INT, GL_R32I, WriteColor<R32S, GLint> ); InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_LUMINANCE8_ALPHA8_EXT, WriteColor<L8A8, GLfloat> ); InsertFormatMapping(&map, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_LUMINANCE8_EXT, WriteColor<L8, GLfloat> ); InsertFormatMapping(&map, GL_ALPHA, GL_UNSIGNED_BYTE, GL_ALPHA8_EXT, WriteColor<A8, GLfloat> ); InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_LUMINANCE_ALPHA32F_EXT, WriteColor<L32A32F, GLfloat> ); InsertFormatMapping(&map, GL_LUMINANCE, GL_FLOAT, GL_LUMINANCE32F_EXT, WriteColor<L32F, GLfloat> ); InsertFormatMapping(&map, GL_ALPHA, GL_FLOAT, GL_ALPHA32F_EXT, WriteColor<A32F, GLfloat> ); InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, GL_LUMINANCE_ALPHA16F_EXT, WriteColor<L16A16F, GLfloat> ); InsertFormatMapping(&map, GL_LUMINANCE, GL_HALF_FLOAT, GL_LUMINANCE16F_EXT, WriteColor<L16F, GLfloat> ); InsertFormatMapping(&map, GL_ALPHA, GL_HALF_FLOAT, GL_ALPHA16F_EXT, WriteColor<A16F, GLfloat> ); InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_BGRA8_EXT, WriteColor<B8G8R8A8, GLfloat> ); InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_BGRA4_ANGLEX, WriteColor<B4G4R4A4, GLfloat> ); InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_BGR5_A1_ANGLEX, WriteColor<B5G5R5A1, GLfloat> ); InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_DEPTH_COMPONENT16, NULL ); InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_DEPTH_COMPONENT24, NULL ); InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_FLOAT, GL_DEPTH_COMPONENT32F, NULL ); InsertFormatMapping(&map, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_DEPTH24_STENCIL8, NULL ); InsertFormatMapping(&map, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_DEPTH32F_STENCIL8, NULL ); return map; } static const FormatMap &GetFormatMap(GLuint clientVersion) { if (clientVersion == 2) { static const FormatMap formats = BuildES2FormatMap(); return formats; } else if (clientVersion == 3) { static const FormatMap formats = BuildES3FormatMap(); return formats; } else { UNREACHABLE(); static FormatMap emptyMap; return emptyMap; } } struct FormatInfo { GLenum mInternalformat; GLenum mFormat; GLenum mType; FormatInfo(GLenum internalformat, GLenum format, GLenum type) : mInternalformat(internalformat), mFormat(format), mType(type) { } bool operator<(const FormatInfo& other) const { return memcmp(this, &other, sizeof(FormatInfo)) < 0; } }; // ES3 has a specific set of permutations of internal formats, formats and types which are acceptable. typedef std::set<FormatInfo> ES3FormatSet; ES3FormatSet BuildES3FormatSet() { ES3FormatSet set; // Format combinations from ES 3.0.1 spec, table 3.2 // | Internal format | Format | Type | // | | | | set.insert(FormatInfo(GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_RGBA4, GL_RGBA, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_RGBA8_SNORM, GL_RGBA, GL_BYTE )); set.insert(FormatInfo(GL_RGBA4, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4 )); set.insert(FormatInfo(GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV )); set.insert(FormatInfo(GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV )); set.insert(FormatInfo(GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1 )); set.insert(FormatInfo(GL_RGBA16F, GL_RGBA, GL_HALF_FLOAT )); set.insert(FormatInfo(GL_RGBA32F, GL_RGBA, GL_FLOAT )); set.insert(FormatInfo(GL_RGBA16F, GL_RGBA, GL_FLOAT )); set.insert(FormatInfo(GL_RGBA8UI, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_RGBA8I, GL_RGBA_INTEGER, GL_BYTE )); set.insert(FormatInfo(GL_RGBA16UI, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT )); set.insert(FormatInfo(GL_RGBA16I, GL_RGBA_INTEGER, GL_SHORT )); set.insert(FormatInfo(GL_RGBA32UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT )); set.insert(FormatInfo(GL_RGBA32I, GL_RGBA_INTEGER, GL_INT )); set.insert(FormatInfo(GL_RGB10_A2UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV )); set.insert(FormatInfo(GL_RGB8, GL_RGB, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_RGB565, GL_RGB, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_SRGB8, GL_RGB, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_RGB8_SNORM, GL_RGB, GL_BYTE )); set.insert(FormatInfo(GL_RGB565, GL_RGB, GL_UNSIGNED_SHORT_5_6_5 )); set.insert(FormatInfo(GL_R11F_G11F_B10F, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV )); set.insert(FormatInfo(GL_RGB9_E5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV )); set.insert(FormatInfo(GL_RGB16F, GL_RGB, GL_HALF_FLOAT )); set.insert(FormatInfo(GL_R11F_G11F_B10F, GL_RGB, GL_HALF_FLOAT )); set.insert(FormatInfo(GL_RGB9_E5, GL_RGB, GL_HALF_FLOAT )); set.insert(FormatInfo(GL_RGB32F, GL_RGB, GL_FLOAT )); set.insert(FormatInfo(GL_RGB16F, GL_RGB, GL_FLOAT )); set.insert(FormatInfo(GL_R11F_G11F_B10F, GL_RGB, GL_FLOAT )); set.insert(FormatInfo(GL_RGB9_E5, GL_RGB, GL_FLOAT )); set.insert(FormatInfo(GL_RGB8UI, GL_RGB_INTEGER, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_RGB8I, GL_RGB_INTEGER, GL_BYTE )); set.insert(FormatInfo(GL_RGB16UI, GL_RGB_INTEGER, GL_UNSIGNED_SHORT )); set.insert(FormatInfo(GL_RGB16I, GL_RGB_INTEGER, GL_SHORT )); set.insert(FormatInfo(GL_RGB32UI, GL_RGB_INTEGER, GL_UNSIGNED_INT )); set.insert(FormatInfo(GL_RGB32I, GL_RGB_INTEGER, GL_INT )); set.insert(FormatInfo(GL_RG8, GL_RG, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_RG8_SNORM, GL_RG, GL_BYTE )); set.insert(FormatInfo(GL_RG16F, GL_RG, GL_HALF_FLOAT )); set.insert(FormatInfo(GL_RG32F, GL_RG, GL_FLOAT )); set.insert(FormatInfo(GL_RG16F, GL_RG, GL_FLOAT )); set.insert(FormatInfo(GL_RG8UI, GL_RG_INTEGER, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_RG8I, GL_RG_INTEGER, GL_BYTE )); set.insert(FormatInfo(GL_RG16UI, GL_RG_INTEGER, GL_UNSIGNED_SHORT )); set.insert(FormatInfo(GL_RG16I, GL_RG_INTEGER, GL_SHORT )); set.insert(FormatInfo(GL_RG32UI, GL_RG_INTEGER, GL_UNSIGNED_INT )); set.insert(FormatInfo(GL_RG32I, GL_RG_INTEGER, GL_INT )); set.insert(FormatInfo(GL_R8, GL_RED, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_R8_SNORM, GL_RED, GL_BYTE )); set.insert(FormatInfo(GL_R16F, GL_RED, GL_HALF_FLOAT )); set.insert(FormatInfo(GL_R32F, GL_RED, GL_FLOAT )); set.insert(FormatInfo(GL_R16F, GL_RED, GL_FLOAT )); set.insert(FormatInfo(GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_R8I, GL_RED_INTEGER, GL_BYTE )); set.insert(FormatInfo(GL_R16UI, GL_RED_INTEGER, GL_UNSIGNED_SHORT )); set.insert(FormatInfo(GL_R16I, GL_RED_INTEGER, GL_SHORT )); set.insert(FormatInfo(GL_R32UI, GL_RED_INTEGER, GL_UNSIGNED_INT )); set.insert(FormatInfo(GL_R32I, GL_RED_INTEGER, GL_INT )); // Unsized formats set.insert(FormatInfo(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4 )); set.insert(FormatInfo(GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1 )); set.insert(FormatInfo(GL_RGB, GL_RGB, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5 )); set.insert(FormatInfo(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_LUMINANCE, GL_LUMINANCE, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE )); // Depth stencil formats set.insert(FormatInfo(GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT )); set.insert(FormatInfo(GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT )); set.insert(FormatInfo(GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT )); set.insert(FormatInfo(GL_DEPTH_COMPONENT32F, GL_DEPTH_COMPONENT, GL_FLOAT )); set.insert(FormatInfo(GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8 )); set.insert(FormatInfo(GL_DEPTH32F_STENCIL8, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV)); // From GL_OES_texture_float set.insert(FormatInfo(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_FLOAT )); set.insert(FormatInfo(GL_LUMINANCE, GL_LUMINANCE, GL_FLOAT )); set.insert(FormatInfo(GL_ALPHA, GL_ALPHA, GL_FLOAT )); // From GL_OES_texture_half_float set.insert(FormatInfo(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT )); set.insert(FormatInfo(GL_LUMINANCE, GL_LUMINANCE, GL_HALF_FLOAT )); set.insert(FormatInfo(GL_ALPHA, GL_ALPHA, GL_HALF_FLOAT )); // From GL_EXT_texture_storage // | Internal format | Format | Type | // | | | | set.insert(FormatInfo(GL_ALPHA8_EXT, GL_ALPHA, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_LUMINANCE8_EXT, GL_LUMINANCE, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_LUMINANCE8_ALPHA8_EXT, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_ALPHA32F_EXT, GL_ALPHA, GL_FLOAT )); set.insert(FormatInfo(GL_LUMINANCE32F_EXT, GL_LUMINANCE, GL_FLOAT )); set.insert(FormatInfo(GL_LUMINANCE_ALPHA32F_EXT, GL_LUMINANCE_ALPHA, GL_FLOAT )); set.insert(FormatInfo(GL_ALPHA16F_EXT, GL_ALPHA, GL_HALF_FLOAT )); set.insert(FormatInfo(GL_LUMINANCE16F_EXT, GL_LUMINANCE, GL_HALF_FLOAT )); set.insert(FormatInfo(GL_LUMINANCE_ALPHA16F_EXT, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT )); set.insert(FormatInfo(GL_BGRA8_EXT, GL_BGRA_EXT, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_BGRA4_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT)); set.insert(FormatInfo(GL_BGRA4_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_BYTE )); set.insert(FormatInfo(GL_BGR5_A1_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT)); set.insert(FormatInfo(GL_BGR5_A1_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_BYTE )); // From GL_ANGLE_depth_texture set.insert(FormatInfo(GL_DEPTH_COMPONENT32_OES, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT_24_8_OES )); // Compressed formats // From ES 3.0.1 spec, table 3.16 // | Internal format | Format | Type | // | | | | set.insert(FormatInfo(GL_COMPRESSED_R11_EAC, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE)); set.insert(FormatInfo(GL_COMPRESSED_R11_EAC, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE)); set.insert(FormatInfo(GL_COMPRESSED_SIGNED_R11_EAC, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_BYTE)); set.insert(FormatInfo(GL_COMPRESSED_RG11_EAC, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE)); set.insert(FormatInfo(GL_COMPRESSED_SIGNED_RG11_EAC, GL_COMPRESSED_SIGNED_RG11_EAC, GL_UNSIGNED_BYTE)); set.insert(FormatInfo(GL_COMPRESSED_RGB8_ETC2, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE)); set.insert(FormatInfo(GL_COMPRESSED_SRGB8_ETC2, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE)); set.insert(FormatInfo(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE)); set.insert(FormatInfo(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE)); set.insert(FormatInfo(GL_COMPRESSED_RGBA8_ETC2_EAC, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNSIGNED_BYTE)); set.insert(FormatInfo(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_UNSIGNED_BYTE)); // From GL_EXT_texture_compression_dxt1 set.insert(FormatInfo(GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE)); set.insert(FormatInfo(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE)); // From GL_ANGLE_texture_compression_dxt3 set.insert(FormatInfo(GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE)); // From GL_ANGLE_texture_compression_dxt5 set.insert(FormatInfo(GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE)); return set; } static const ES3FormatSet &GetES3FormatSet() { static const ES3FormatSet es3FormatSet = BuildES3FormatSet(); return es3FormatSet; } // Map of sizes of input types struct TypeInfo { GLuint mTypeBytes; bool mSpecialInterpretation; TypeInfo() : mTypeBytes(0), mSpecialInterpretation(false) { } TypeInfo(GLuint typeBytes, bool specialInterpretation) : mTypeBytes(typeBytes), mSpecialInterpretation(specialInterpretation) { } bool operator<(const TypeInfo& other) const { return memcmp(this, &other, sizeof(TypeInfo)) < 0; } }; typedef std::pair<GLenum, TypeInfo> TypeInfoPair; typedef std::map<GLenum, TypeInfo> TypeInfoMap; static TypeInfoMap BuildTypeInfoMap() { TypeInfoMap map; map.insert(TypeInfoPair(GL_UNSIGNED_BYTE, TypeInfo( 1, false))); map.insert(TypeInfoPair(GL_BYTE, TypeInfo( 1, false))); map.insert(TypeInfoPair(GL_UNSIGNED_SHORT, TypeInfo( 2, false))); map.insert(TypeInfoPair(GL_SHORT, TypeInfo( 2, false))); map.insert(TypeInfoPair(GL_UNSIGNED_INT, TypeInfo( 4, false))); map.insert(TypeInfoPair(GL_INT, TypeInfo( 4, false))); map.insert(TypeInfoPair(GL_HALF_FLOAT, TypeInfo( 2, false))); map.insert(TypeInfoPair(GL_HALF_FLOAT_OES, TypeInfo( 2, false))); map.insert(TypeInfoPair(GL_FLOAT, TypeInfo( 4, false))); map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_5_6_5, TypeInfo( 2, true ))); map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_4_4_4_4, TypeInfo( 2, true ))); map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_5_5_5_1, TypeInfo( 2, true ))); map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, TypeInfo( 2, true ))); map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, TypeInfo( 2, true ))); map.insert(TypeInfoPair(GL_UNSIGNED_INT_2_10_10_10_REV, TypeInfo( 4, true ))); map.insert(TypeInfoPair(GL_UNSIGNED_INT_24_8, TypeInfo( 4, true ))); map.insert(TypeInfoPair(GL_UNSIGNED_INT_10F_11F_11F_REV, TypeInfo( 4, true ))); map.insert(TypeInfoPair(GL_UNSIGNED_INT_5_9_9_9_REV, TypeInfo( 4, true ))); map.insert(TypeInfoPair(GL_UNSIGNED_INT_24_8_OES, TypeInfo( 4, true ))); map.insert(TypeInfoPair(GL_FLOAT_32_UNSIGNED_INT_24_8_REV, TypeInfo( 8, true ))); return map; } static bool GetTypeInfo(GLenum type, TypeInfo *outTypeInfo) { static const TypeInfoMap infoMap = BuildTypeInfoMap(); TypeInfoMap::const_iterator iter = infoMap.find(type); if (iter != infoMap.end()) { if (outTypeInfo) { *outTypeInfo = iter->second; } return true; } else { return false; } } // Information about internal formats typedef bool ((Context::*ContextSupportCheckMemberFunction)(void) const); typedef bool (*ContextSupportCheckFunction)(const Context *context); typedef bool ((rx::Renderer::*RendererSupportCheckMemberFunction)(void) const); typedef bool (*ContextRendererSupportCheckFunction)(const Context *context, const rx::Renderer *renderer); template <ContextSupportCheckMemberFunction func> bool CheckSupport(const Context *context) { return (context->*func)(); } template <ContextSupportCheckMemberFunction contextFunc, RendererSupportCheckMemberFunction rendererFunc> bool CheckSupport(const Context *context, const rx::Renderer *renderer) { if (context) { return (context->*contextFunc)(); } else if (renderer) { return (renderer->*rendererFunc)(); } else { UNREACHABLE(); return false; } } template <typename objectType> bool AlwaysSupported(const objectType*) { return true; } template <typename objectTypeA, typename objectTypeB> bool AlwaysSupported(const objectTypeA*, const objectTypeB*) { return true; } template <typename objectType> bool NeverSupported(const objectType*) { return false; } template <typename objectTypeA, typename objectTypeB> bool NeverSupported(const objectTypeA *, const objectTypeB *) { return false; } template <typename objectType> bool UnimplementedSupport(const objectType*) { UNIMPLEMENTED(); return false; } template <typename objectTypeA, typename objectTypeB> bool UnimplementedSupport(const objectTypeA*, const objectTypeB*) { UNIMPLEMENTED(); return false; } struct InternalFormatInfo { GLuint mRedBits; GLuint mGreenBits; GLuint mBlueBits; GLuint mLuminanceBits; GLuint mAlphaBits; GLuint mSharedBits; GLuint mDepthBits; GLuint mStencilBits; GLuint mPixelBits; GLuint mComponentCount; GLuint mCompressedBlockWidth; GLuint mCompressedBlockHeight; GLenum mFormat; GLenum mType; GLenum mComponentType; GLenum mColorEncoding; bool mIsCompressed; ContextRendererSupportCheckFunction mIsColorRenderable; ContextRendererSupportCheckFunction mIsDepthRenderable; ContextRendererSupportCheckFunction mIsStencilRenderable; ContextRendererSupportCheckFunction mIsTextureFilterable; ContextSupportCheckFunction mSupportFunction; InternalFormatInfo() : mRedBits(0), mGreenBits(0), mBlueBits(0), mLuminanceBits(0), mAlphaBits(0), mSharedBits(0), mDepthBits(0), mStencilBits(0), mPixelBits(0), mComponentCount(0), mCompressedBlockWidth(0), mCompressedBlockHeight(0), mFormat(GL_NONE), mType(GL_NONE), mComponentType(GL_NONE), mColorEncoding(GL_NONE), mIsCompressed(false), mIsColorRenderable(NeverSupported), mIsDepthRenderable(NeverSupported), mIsStencilRenderable(NeverSupported), mIsTextureFilterable(NeverSupported), mSupportFunction(NeverSupported) { } static InternalFormatInfo UnsizedFormat(GLenum format, ContextSupportCheckFunction supportFunction) { InternalFormatInfo formatInfo; formatInfo.mFormat = format; formatInfo.mSupportFunction = supportFunction; if (format == GL_RGB || format == GL_RGBA) formatInfo.mIsColorRenderable = AlwaysSupported; return formatInfo; } static InternalFormatInfo RGBAFormat(GLuint red, GLuint green, GLuint blue, GLuint alpha, GLuint shared, GLenum format, GLenum type, GLenum componentType, bool srgb, ContextRendererSupportCheckFunction colorRenderable, ContextRendererSupportCheckFunction textureFilterable, ContextSupportCheckFunction supportFunction) { InternalFormatInfo formatInfo; formatInfo.mRedBits = red; formatInfo.mGreenBits = green; formatInfo.mBlueBits = blue; formatInfo.mAlphaBits = alpha; formatInfo.mSharedBits = shared; formatInfo.mPixelBits = red + green + blue + alpha + shared; formatInfo.mComponentCount = ((red > 0) ? 1 : 0) + ((green > 0) ? 1 : 0) + ((blue > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0); formatInfo.mFormat = format; formatInfo.mType = type; formatInfo.mComponentType = componentType; formatInfo.mColorEncoding = (srgb ? GL_SRGB : GL_LINEAR); formatInfo.mIsColorRenderable = colorRenderable; formatInfo.mIsTextureFilterable = textureFilterable; formatInfo.mSupportFunction = supportFunction; return formatInfo; } static InternalFormatInfo LUMAFormat(GLuint luminance, GLuint alpha, GLenum format, GLenum type, GLenum componentType, ContextSupportCheckFunction supportFunction) { InternalFormatInfo formatInfo; formatInfo.mLuminanceBits = luminance; formatInfo.mAlphaBits = alpha; formatInfo.mPixelBits = luminance + alpha; formatInfo.mComponentCount = ((luminance > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0); formatInfo.mFormat = format; formatInfo.mType = type; formatInfo.mComponentType = componentType; formatInfo.mColorEncoding = GL_LINEAR; formatInfo.mIsTextureFilterable = AlwaysSupported; formatInfo.mSupportFunction = supportFunction; return formatInfo; } static InternalFormatInfo DepthStencilFormat(GLuint depthBits, GLuint stencilBits, GLuint unusedBits, GLenum format, GLenum type, GLenum componentType, ContextRendererSupportCheckFunction depthRenderable, ContextRendererSupportCheckFunction stencilRenderable, ContextSupportCheckFunction supportFunction) { InternalFormatInfo formatInfo; formatInfo.mDepthBits = depthBits; formatInfo.mStencilBits = stencilBits; formatInfo.mPixelBits = depthBits + stencilBits + unusedBits; formatInfo.mComponentCount = ((depthBits > 0) ? 1 : 0) + ((stencilBits > 0) ? 1 : 0); formatInfo.mFormat = format; formatInfo.mType = type; formatInfo.mComponentType = componentType; formatInfo.mColorEncoding = GL_LINEAR; formatInfo.mIsDepthRenderable = depthRenderable; formatInfo.mIsStencilRenderable = stencilRenderable; formatInfo.mIsTextureFilterable = AlwaysSupported; formatInfo.mSupportFunction = supportFunction; return formatInfo; } static InternalFormatInfo CompressedFormat(GLuint compressedBlockWidth, GLuint compressedBlockHeight, GLuint compressedBlockSize, GLuint componentCount, GLenum format, GLenum type, bool srgb, ContextSupportCheckFunction supportFunction) { InternalFormatInfo formatInfo; formatInfo.mCompressedBlockWidth = compressedBlockWidth; formatInfo.mCompressedBlockHeight = compressedBlockHeight; formatInfo.mPixelBits = compressedBlockSize; formatInfo.mComponentCount = componentCount; formatInfo.mFormat = format; formatInfo.mType = type; formatInfo.mComponentType = GL_UNSIGNED_NORMALIZED; formatInfo.mColorEncoding = (srgb ? GL_SRGB : GL_LINEAR); formatInfo.mIsCompressed = true; formatInfo.mIsTextureFilterable = AlwaysSupported; formatInfo.mSupportFunction = supportFunction; return formatInfo; } }; typedef std::pair<GLenum, InternalFormatInfo> InternalFormatInfoPair; typedef std::map<GLenum, InternalFormatInfo> InternalFormatInfoMap; static InternalFormatInfoMap BuildES3InternalFormatInfoMap() { InternalFormatInfoMap map; // From ES 3.0.1 spec, table 3.12 map.insert(InternalFormatInfoPair(GL_NONE, InternalFormatInfo())); // | Internal format | | R | G | B | A |S | Format | Type | Component type | SRGB | Color | Texture | Supported | // | | | | | | | | | | | | renderable | filterable | | map.insert(InternalFormatInfoPair(GL_R8, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_R8_SNORM, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RG8, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RG8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB565, InternalFormatInfo::RGBAFormat( 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGBA4, InternalFormatInfo::RGBAFormat( 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB5_A1, InternalFormatInfo::RGBAFormat( 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGBA8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGBA8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB10_A2, InternalFormatInfo::RGBAFormat(10, 10, 10, 2, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB10_A2UI, InternalFormatInfo::RGBAFormat(10, 10, 10, 2, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_SRGB8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, NeverSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_SRGB8_ALPHA8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, AlwaysSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_R11F_G11F_B10F, InternalFormatInfo::RGBAFormat(11, 11, 10, 0, 0, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_FLOAT, false, NeverSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB9_E5, InternalFormatInfo::RGBAFormat( 9, 9, 9, 0, 5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_FLOAT, false, NeverSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_R8I, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_R8UI, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_R16I, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_R16UI, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_R32I, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_R32UI, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RG8I, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RG8UI, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RG16I, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RG16UI, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RG32I, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RG32UI, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB8I, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, GL_INT, false, NeverSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB8UI, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, NeverSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB16I, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, GL_INT, false, NeverSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB16UI, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, NeverSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB32I, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, GL_INT, false, NeverSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB32UI, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, NeverSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGBA8I, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGBA8UI, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGBA16I, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGBA16UI, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGBA32I, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGBA32UI, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_BGRA8_EXT, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_BGRA4_ANGLEX, InternalFormatInfo::RGBAFormat( 4, 4, 4, 4, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_BGR5_A1_ANGLEX, InternalFormatInfo::RGBAFormat( 5, 5, 5, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported ))); // Floating point renderability and filtering is provided by OES_texture_float and OES_texture_half_float // | Internal format | | D |S | Format | Type | Comp | SRGB | Color renderable | Texture filterable | Supported | // | | | | | | | type | | | | | map.insert(InternalFormatInfoPair(GL_R16F, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RG16F, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB16F, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGBA16F, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_R32F, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RG32F, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGB32F, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, AlwaysSupported ))); map.insert(InternalFormatInfoPair(GL_RGBA32F, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, AlwaysSupported ))); // Depth stencil formats // | Internal format | | D |S | X | Format | Type | Component type | Depth | Stencil | Supported | // | | | | | | | | | renderable | renderable | | map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT16, InternalFormatInfo::DepthStencilFormat(16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, AlwaysSupported, NeverSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT24, InternalFormatInfo::DepthStencilFormat(24, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, AlwaysSupported, NeverSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32F, InternalFormatInfo::DepthStencilFormat(32, 0, 0, GL_DEPTH_COMPONENT, GL_FLOAT, GL_FLOAT, AlwaysSupported, NeverSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32_OES, InternalFormatInfo::DepthStencilFormat(32, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, AlwaysSupported, NeverSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_DEPTH24_STENCIL8, InternalFormatInfo::DepthStencilFormat(24, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_DEPTH32F_STENCIL8, InternalFormatInfo::DepthStencilFormat(32, 8, 24, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_FLOAT, AlwaysSupported, AlwaysSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_STENCIL_INDEX8, InternalFormatInfo::DepthStencilFormat( 0, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, NeverSupported, AlwaysSupported, AlwaysSupported))); // Luminance alpha formats // | Internal format | | L | A | Format | Type | Component type | Supported | map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, InternalFormatInfo::LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, InternalFormatInfo::LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT, GL_FLOAT, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, InternalFormatInfo::LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT, GL_FLOAT, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat(16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, GL_FLOAT, AlwaysSupported))); // Unsized formats // | Internal format | | Format | Supported | map.insert(InternalFormatInfoPair(GL_ALPHA, InternalFormatInfo::UnsizedFormat(GL_ALPHA, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE_ALPHA, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RED, InternalFormatInfo::UnsizedFormat(GL_RED, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RG, InternalFormatInfo::UnsizedFormat(GL_RG, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RGB, InternalFormatInfo::UnsizedFormat(GL_RGB, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RGBA, InternalFormatInfo::UnsizedFormat(GL_RGBA, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RED_INTEGER, InternalFormatInfo::UnsizedFormat(GL_RED_INTEGER, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RG_INTEGER, InternalFormatInfo::UnsizedFormat(GL_RG_INTEGER, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RGB_INTEGER, InternalFormatInfo::UnsizedFormat(GL_RGB_INTEGER, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RGBA_INTEGER, InternalFormatInfo::UnsizedFormat(GL_RGBA_INTEGER, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_BGRA_EXT, InternalFormatInfo::UnsizedFormat(GL_BGRA_EXT, AlwaysSupported))); // Compressed formats, From ES 3.0.1 spec, table 3.16 // | Internal format | |W |H | BS |CC| Format | Type | SRGB | Supported | map.insert(InternalFormatInfoPair(GL_COMPRESSED_R11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport))); map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_R11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport))); map.insert(InternalFormatInfoPair(GL_COMPRESSED_RG11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport))); map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_RG11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_SIGNED_RG11_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport))); map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE, false, UnimplementedSupport))); map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE, true, UnimplementedSupport))); map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE, false, UnimplementedSupport))); map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE, true, UnimplementedSupport))); map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA8_ETC2_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport))); map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_UNSIGNED_BYTE, true, UnimplementedSupport))); // From GL_EXT_texture_compression_dxt1 // | Internal format | |W |H | BS |CC| Format | Type | SRGB | Supported | map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB_S3TC_DXT1_EXT, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, false, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, InternalFormatInfo::CompressedFormat(4, 4, 64, 4, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, false, AlwaysSupported))); // From GL_ANGLE_texture_compression_dxt3 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, false, AlwaysSupported))); // From GL_ANGLE_texture_compression_dxt5 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE, false, AlwaysSupported))); return map; } static InternalFormatInfoMap BuildES2InternalFormatInfoMap() { InternalFormatInfoMap map; // From ES 2.0.25 table 4.5 map.insert(InternalFormatInfoPair(GL_NONE, InternalFormatInfo())); // | Internal format | | R | G | B | A |S | Format | Type | Component type | SRGB | Color | Texture | Supported | // | | | | | | | | | | | | renderable | filterable | | map.insert(InternalFormatInfoPair(GL_RGBA4, InternalFormatInfo::RGBAFormat( 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RGB5_A1, InternalFormatInfo::RGBAFormat( 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RGB565, InternalFormatInfo::RGBAFormat( 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported))); // Extension formats map.insert(InternalFormatInfoPair(GL_R8_EXT, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, CheckSupport<&Context::supportsRGTextures, &rx::Renderer::getRGTextureSupport>, CheckSupport<&Context::supportsRGTextures, &rx::Renderer::getRGTextureSupport>, CheckSupport<&Context::supportsRGTextures>))); map.insert(InternalFormatInfoPair(GL_RG8_EXT, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, CheckSupport<&Context::supportsRGTextures, &rx::Renderer::getRGTextureSupport>, CheckSupport<&Context::supportsRGTextures, &rx::Renderer::getRGTextureSupport>, CheckSupport<&Context::supportsRGTextures>))); map.insert(InternalFormatInfoPair(GL_RGB8_OES, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RGBA8_OES, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_BGRA8_EXT, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_BGRA4_ANGLEX, InternalFormatInfo::RGBAFormat( 4, 4, 4, 4, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_BGR5_A1_ANGLEX, InternalFormatInfo::RGBAFormat( 5, 5, 5, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, AlwaysSupported))); // Floating point formats have to query the renderer for support // | Internal format | | R | G | B | A |S | Format | Type | Comp | SRGB | Color renderable | Texture filterable | Supported | // | | | | | | | | | | type | | | | | map.insert(InternalFormatInfoPair(GL_R16F_EXT, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT_OES, GL_FLOAT, false, CheckSupport<&Context::supportsRGTextures, &rx::Renderer::getRGTextureSupport>, CheckSupport<&Context::supportsRGTextures, &rx::Renderer::getRGTextureSupport>, CheckSupport<&Context::supportsRGTextures> ))); map.insert(InternalFormatInfoPair(GL_R32F_EXT, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsRGTextures, &rx::Renderer::getRGTextureSupport>, CheckSupport<&Context::supportsRGTextures, &rx::Renderer::getRGTextureSupport>, CheckSupport<&Context::supportsRGTextures> ))); map.insert(InternalFormatInfoPair(GL_RG16F_EXT, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT_OES, GL_FLOAT, false, CheckSupport<&Context::supportsRGTextures, &rx::Renderer::getRGTextureSupport>, CheckSupport<&Context::supportsRGTextures, &rx::Renderer::getRGTextureSupport>, CheckSupport<&Context::supportsRGTextures> ))); map.insert(InternalFormatInfoPair(GL_RG32F_EXT, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsRGTextures, &rx::Renderer::getRGTextureSupport>, CheckSupport<&Context::supportsRGTextures, &rx::Renderer::getRGTextureSupport>, CheckSupport<&Context::supportsRGTextures> ))); map.insert(InternalFormatInfoPair(GL_RGB16F_EXT, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT_OES, GL_FLOAT, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, CheckSupport<&Context::supportsFloat16Textures>))); map.insert(InternalFormatInfoPair(GL_RGB32F_EXT, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, CheckSupport<&Context::supportsFloat32Textures>))); map.insert(InternalFormatInfoPair(GL_RGBA16F_EXT, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT_OES, GL_FLOAT, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, CheckSupport<&Context::supportsFloat16Textures>))); map.insert(InternalFormatInfoPair(GL_RGBA32F_EXT, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, CheckSupport<&Context::supportsFloat32Textures>))); // Depth and stencil formats // | Internal format | | D |S |X | Format | Type | Internal format | Depth | Stencil | Supported | // | | | | | | | | type | renderable | renderable | | map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32_OES,InternalFormatInfo::DepthStencilFormat(32, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, AlwaysSupported, NeverSupported, CheckSupport<&Context::supportsDepthTextures>))); map.insert(InternalFormatInfoPair(GL_DEPTH24_STENCIL8_OES, InternalFormatInfo::DepthStencilFormat(24, 8, 0, GL_DEPTH_STENCIL_OES, GL_UNSIGNED_INT_24_8_OES, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, CheckSupport<&Context::supportsDepthTextures>))); map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT16, InternalFormatInfo::DepthStencilFormat(16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, AlwaysSupported, NeverSupported, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_STENCIL_INDEX8, InternalFormatInfo::DepthStencilFormat( 0, 8, 0, GL_DEPTH_STENCIL_OES, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, NeverSupported, AlwaysSupported, AlwaysSupported))); // Unsized formats // | Internal format | | Format | Supported | map.insert(InternalFormatInfoPair(GL_ALPHA, InternalFormatInfo::UnsizedFormat(GL_ALPHA, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE_ALPHA, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RED_EXT, InternalFormatInfo::UnsizedFormat(GL_RED_EXT, CheckSupport<&Context::supportsRGTextures>))); map.insert(InternalFormatInfoPair(GL_RG_EXT, InternalFormatInfo::UnsizedFormat(GL_RG_EXT, CheckSupport<&Context::supportsRGTextures>))); map.insert(InternalFormatInfoPair(GL_RGB, InternalFormatInfo::UnsizedFormat(GL_RGB, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_RGBA, InternalFormatInfo::UnsizedFormat(GL_RGBA, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_BGRA_EXT, InternalFormatInfo::UnsizedFormat(GL_BGRA_EXT, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT, InternalFormatInfo::UnsizedFormat(GL_DEPTH_COMPONENT, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_DEPTH_STENCIL_OES, InternalFormatInfo::UnsizedFormat(GL_DEPTH_STENCIL_OES, AlwaysSupported))); // Luminance alpha formats from GL_EXT_texture_storage // | Internal format | | L | A | Format | Type | Component type | Supported | map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, InternalFormatInfo::LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, InternalFormatInfo::LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, InternalFormatInfo::LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_FLOAT, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, AlwaysSupported))); map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat(16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, AlwaysSupported))); // From GL_EXT_texture_compression_dxt1 // | Internal format | |W |H | BS |CC|Format | Type | SRGB | Supported | map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB_S3TC_DXT1_EXT, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, false, CheckSupport<&Context::supportsDXT1Textures>))); map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, InternalFormatInfo::CompressedFormat(4, 4, 64, 4, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, false, CheckSupport<&Context::supportsDXT1Textures>))); // From GL_ANGLE_texture_compression_dxt3 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, false, CheckSupport<&Context::supportsDXT3Textures>))); // From GL_ANGLE_texture_compression_dxt5 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE, false, CheckSupport<&Context::supportsDXT5Textures>))); return map; } static bool GetInternalFormatInfo(GLenum internalFormat, GLuint clientVersion, InternalFormatInfo *outFormatInfo) { const InternalFormatInfoMap* map = NULL; if (clientVersion == 2) { static const InternalFormatInfoMap formatMap = BuildES2InternalFormatInfoMap(); map = &formatMap; } else if (clientVersion == 3) { static const InternalFormatInfoMap formatMap = BuildES3InternalFormatInfoMap(); map = &formatMap; } else { UNREACHABLE(); } InternalFormatInfoMap::const_iterator iter = map->find(internalFormat); if (iter != map->end()) { if (outFormatInfo) { *outFormatInfo = iter->second; } return true; } else { return false; } } typedef std::set<GLenum> FormatSet; static FormatSet BuildES2ValidFormatSet() { static const FormatMap &formatMap = GetFormatMap(2); FormatSet set; for (FormatMap::const_iterator i = formatMap.begin(); i != formatMap.end(); i++) { const FormatTypePair& formatPair = i->first; set.insert(formatPair.first); } return set; } static FormatSet BuildES3ValidFormatSet() { static const ES3FormatSet &formatSet = GetES3FormatSet(); FormatSet set; for (ES3FormatSet::const_iterator i = formatSet.begin(); i != formatSet.end(); i++) { const FormatInfo& formatInfo = *i; set.insert(formatInfo.mFormat); } return set; } typedef std::set<GLenum> TypeSet; static TypeSet BuildES2ValidTypeSet() { static const FormatMap &formatMap = GetFormatMap(2); TypeSet set; for (FormatMap::const_iterator i = formatMap.begin(); i != formatMap.end(); i++) { const FormatTypePair& formatPair = i->first; set.insert(formatPair.second); } return set; } static TypeSet BuildES3ValidTypeSet() { static const ES3FormatSet &formatSet = GetES3FormatSet(); TypeSet set; for (ES3FormatSet::const_iterator i = formatSet.begin(); i != formatSet.end(); i++) { const FormatInfo& formatInfo = *i; set.insert(formatInfo.mType); } return set; } struct CopyConversion { GLenum mTextureFormat; GLenum mFramebufferFormat; CopyConversion(GLenum textureFormat, GLenum framebufferFormat) : mTextureFormat(textureFormat), mFramebufferFormat(framebufferFormat) { } bool operator<(const CopyConversion& other) const { return memcmp(this, &other, sizeof(CopyConversion)) < 0; } }; typedef std::set<CopyConversion> CopyConversionSet; static CopyConversionSet BuildValidES3CopyTexImageCombinations() { CopyConversionSet set; // From ES 3.0.1 spec, table 3.15 set.insert(CopyConversion(GL_ALPHA, GL_RGBA)); set.insert(CopyConversion(GL_LUMINANCE, GL_RED)); set.insert(CopyConversion(GL_LUMINANCE, GL_RG)); set.insert(CopyConversion(GL_LUMINANCE, GL_RGB)); set.insert(CopyConversion(GL_LUMINANCE, GL_RGBA)); set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_RGBA)); set.insert(CopyConversion(GL_RED, GL_RED)); set.insert(CopyConversion(GL_RED, GL_RG)); set.insert(CopyConversion(GL_RED, GL_RGB)); set.insert(CopyConversion(GL_RED, GL_RGBA)); set.insert(CopyConversion(GL_RG, GL_RG)); set.insert(CopyConversion(GL_RG, GL_RGB)); set.insert(CopyConversion(GL_RG, GL_RGBA)); set.insert(CopyConversion(GL_RGB, GL_RGB)); set.insert(CopyConversion(GL_RGB, GL_RGBA)); set.insert(CopyConversion(GL_RGBA, GL_RGBA)); // Necessary for ANGLE back-buffers set.insert(CopyConversion(GL_ALPHA, GL_BGRA_EXT)); set.insert(CopyConversion(GL_LUMINANCE, GL_BGRA_EXT)); set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_BGRA_EXT)); set.insert(CopyConversion(GL_RED, GL_BGRA_EXT)); set.insert(CopyConversion(GL_RG, GL_BGRA_EXT)); set.insert(CopyConversion(GL_RGB, GL_BGRA_EXT)); set.insert(CopyConversion(GL_RGBA, GL_BGRA_EXT)); set.insert(CopyConversion(GL_RED_INTEGER, GL_RED_INTEGER)); set.insert(CopyConversion(GL_RED_INTEGER, GL_RG_INTEGER)); set.insert(CopyConversion(GL_RED_INTEGER, GL_RGB_INTEGER)); set.insert(CopyConversion(GL_RED_INTEGER, GL_RGBA_INTEGER)); set.insert(CopyConversion(GL_RG_INTEGER, GL_RG_INTEGER)); set.insert(CopyConversion(GL_RG_INTEGER, GL_RGB_INTEGER)); set.insert(CopyConversion(GL_RG_INTEGER, GL_RGBA_INTEGER)); set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGB_INTEGER)); set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGBA_INTEGER)); set.insert(CopyConversion(GL_RGBA_INTEGER, GL_RGBA_INTEGER)); return set; } bool IsValidInternalFormat(GLenum internalFormat, const Context *context) { if (!context) { return false; } InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo)) { ASSERT(internalFormatInfo.mSupportFunction != NULL); return internalFormatInfo.mSupportFunction(context); } else { return false; } } bool IsValidFormat(GLenum format, GLuint clientVersion) { if (clientVersion == 2) { static const FormatSet formatSet = BuildES2ValidFormatSet(); return formatSet.find(format) != formatSet.end(); } else if (clientVersion == 3) { static const FormatSet formatSet = BuildES3ValidFormatSet(); return formatSet.find(format) != formatSet.end(); } else { UNREACHABLE(); return false; } } bool IsValidType(GLenum type, GLuint clientVersion) { if (clientVersion == 2) { static const TypeSet typeSet = BuildES2ValidTypeSet(); return typeSet.find(type) != typeSet.end(); } else if (clientVersion == 3) { static const TypeSet typeSet = BuildES3ValidTypeSet(); return typeSet.find(type) != typeSet.end(); } else { UNREACHABLE(); return false; } } bool IsValidFormatCombination(GLenum internalFormat, GLenum format, GLenum type, GLuint clientVersion) { if (clientVersion == 2) { static const FormatMap &formats = GetFormatMap(clientVersion); FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type)); return (iter != formats.end()) && ((internalFormat == (GLint)type) || (internalFormat == iter->second.mInternalFormat)); } else if (clientVersion == 3) { static const ES3FormatSet &formats = GetES3FormatSet(); return formats.find(FormatInfo(internalFormat, format, type)) != formats.end(); } else { UNREACHABLE(); return false; } } bool IsValidCopyTexImageCombination(GLenum textureInternalFormat, GLenum frameBufferInternalFormat, GLuint clientVersion) { InternalFormatInfo textureInternalFormatInfo; InternalFormatInfo framebufferInternalFormatInfo; if (GetInternalFormatInfo(textureInternalFormat, clientVersion, &textureInternalFormatInfo) && GetInternalFormatInfo(frameBufferInternalFormat, clientVersion, &framebufferInternalFormatInfo)) { if (clientVersion == 2) { UNIMPLEMENTED(); return false; } else if (clientVersion == 3) { static const CopyConversionSet conversionSet = BuildValidES3CopyTexImageCombinations(); const CopyConversion conversion = CopyConversion(textureInternalFormatInfo.mFormat, framebufferInternalFormatInfo.mFormat); if (conversionSet.find(conversion) != conversionSet.end()) { // Section 3.8.5 of the GLES3 3.0.2 spec states that source and destination formats // must both be signed or unsigned or fixed/floating point and both source and destinations // must be either both SRGB or both not SRGB if ((textureInternalFormatInfo.mColorEncoding == GL_SRGB) != (framebufferInternalFormatInfo.mColorEncoding == GL_SRGB)) { return false; } if ((textureInternalFormatInfo.mComponentType == GL_INT && framebufferInternalFormatInfo.mComponentType == GL_INT ) || (textureInternalFormatInfo.mComponentType == GL_UNSIGNED_INT && framebufferInternalFormatInfo.mComponentType == GL_UNSIGNED_INT)) { return true; } if ((textureInternalFormatInfo.mComponentType == GL_UNSIGNED_NORMALIZED || textureInternalFormatInfo.mComponentType == GL_SIGNED_NORMALIZED || textureInternalFormatInfo.mComponentType == GL_FLOAT ) && (framebufferInternalFormatInfo.mComponentType == GL_UNSIGNED_NORMALIZED || framebufferInternalFormatInfo.mComponentType == GL_SIGNED_NORMALIZED || framebufferInternalFormatInfo.mComponentType == GL_FLOAT )) { return true; } } return false; } else { UNREACHABLE(); return false; } } else { UNREACHABLE(); return false; } } bool IsSizedInternalFormat(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mPixelBits > 0; } else { UNREACHABLE(); return false; } } GLenum GetSizedInternalFormat(GLenum format, GLenum type, GLuint clientVersion) { const FormatMap &formats = GetFormatMap(clientVersion); FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type)); return (iter != formats.end()) ? iter->second.mInternalFormat : GL_NONE; } GLuint GetPixelBytes(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mPixelBits / 8; } else { UNREACHABLE(); return 0; } } GLuint GetAlphaBits(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mAlphaBits; } else { UNREACHABLE(); return 0; } } GLuint GetRedBits(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mRedBits; } else { UNREACHABLE(); return 0; } } GLuint GetGreenBits(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mGreenBits; } else { UNREACHABLE(); return 0; } } GLuint GetBlueBits(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mBlueBits; } else { UNREACHABLE(); return 0; } } GLuint GetLuminanceBits(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mLuminanceBits; } else { UNREACHABLE(); return 0; } } GLuint GetDepthBits(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mDepthBits; } else { UNREACHABLE(); return 0; } } GLuint GetStencilBits(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mStencilBits; } else { UNREACHABLE(); return 0; } } GLuint GetTypeBytes(GLenum type) { TypeInfo typeInfo; if (GetTypeInfo(type, &typeInfo)) { return typeInfo.mTypeBytes; } else { UNREACHABLE(); return 0; } } bool IsSpecialInterpretationType(GLenum type) { TypeInfo typeInfo; if (GetTypeInfo(type, &typeInfo)) { return typeInfo.mSpecialInterpretation; } else { UNREACHABLE(); return false; } } GLenum GetFormat(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mFormat; } else { UNREACHABLE(); return GL_NONE; } } GLenum GetType(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mType; } else { UNREACHABLE(); return GL_NONE; } } GLuint GetComponentType(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mComponentType; } else { UNREACHABLE(); return false; } } GLuint GetComponentCount(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mComponentCount; } else { UNREACHABLE(); return false; } } GLenum GetColorEncoding(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mColorEncoding; } else { UNREACHABLE(); return false; } } bool IsColorRenderingSupported(GLenum internalFormat, const rx::Renderer *renderer) { InternalFormatInfo internalFormatInfo; if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo)) { return internalFormatInfo.mIsColorRenderable(NULL, renderer); } else { UNREACHABLE(); return false; } } bool IsColorRenderingSupported(GLenum internalFormat, const Context *context) { InternalFormatInfo internalFormatInfo; if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo)) { return internalFormatInfo.mIsColorRenderable(context, NULL); } else { UNREACHABLE(); return false; } } bool IsTextureFilteringSupported(GLenum internalFormat, const rx::Renderer *renderer) { InternalFormatInfo internalFormatInfo; if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo)) { return internalFormatInfo.mIsTextureFilterable(NULL, renderer); } else { UNREACHABLE(); return false; } } bool IsTextureFilteringSupported(GLenum internalFormat, const Context *context) { InternalFormatInfo internalFormatInfo; if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo)) { return internalFormatInfo.mIsTextureFilterable(context, NULL); } else { UNREACHABLE(); return false; } } bool IsDepthRenderingSupported(GLenum internalFormat, const rx::Renderer *renderer) { InternalFormatInfo internalFormatInfo; if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo)) { return internalFormatInfo.mIsDepthRenderable(NULL, renderer); } else { UNREACHABLE(); return false; } } bool IsDepthRenderingSupported(GLenum internalFormat, const Context *context) { InternalFormatInfo internalFormatInfo; if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo)) { return internalFormatInfo.mIsDepthRenderable(context, NULL); } else { UNREACHABLE(); return false; } } bool IsStencilRenderingSupported(GLenum internalFormat, const rx::Renderer *renderer) { InternalFormatInfo internalFormatInfo; if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo)) { return internalFormatInfo.mIsStencilRenderable(NULL, renderer); } else { UNREACHABLE(); return false; } } bool IsStencilRenderingSupported(GLenum internalFormat, const Context *context) { InternalFormatInfo internalFormatInfo; if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo)) { return internalFormatInfo.mIsStencilRenderable(context, NULL); } else { UNREACHABLE(); return false; } } GLuint GetRowPitch(GLenum internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLint alignment) { ASSERT(alignment > 0 && isPow2(alignment)); return (GetBlockSize(internalFormat, type, clientVersion, width, 1) + alignment - 1) & ~(alignment - 1); } GLuint GetDepthPitch(GLenum internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLsizei height, GLint alignment) { return GetRowPitch(internalFormat, type, clientVersion, width, alignment) * height; } GLuint GetBlockSize(GLenum internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLsizei height) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { if (internalFormatInfo.mIsCompressed) { GLsizei numBlocksWide = (width + internalFormatInfo.mCompressedBlockWidth - 1) / internalFormatInfo.mCompressedBlockWidth; GLsizei numBlocksHight = (height + internalFormatInfo.mCompressedBlockHeight - 1) / internalFormatInfo.mCompressedBlockHeight; return (internalFormatInfo.mPixelBits * numBlocksWide * numBlocksHight) / 8; } else { TypeInfo typeInfo; if (GetTypeInfo(type, &typeInfo)) { if (typeInfo.mSpecialInterpretation) { return typeInfo.mTypeBytes * width * height; } else { return internalFormatInfo.mComponentCount * typeInfo.mTypeBytes * width * height; } } else { UNREACHABLE(); return 0; } } } else { UNREACHABLE(); return 0; } } bool IsFormatCompressed(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mIsCompressed; } else { UNREACHABLE(); return false; } } GLuint GetCompressedBlockWidth(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mCompressedBlockWidth; } else { UNREACHABLE(); return 0; } } GLuint GetCompressedBlockHeight(GLenum internalFormat, GLuint clientVersion) { InternalFormatInfo internalFormatInfo; if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo)) { return internalFormatInfo.mCompressedBlockHeight; } else { UNREACHABLE(); return 0; } } ColorWriteFunction GetColorWriteFunction(GLenum format, GLenum type, GLuint clientVersion) { static const FormatMap &formats = GetFormatMap(clientVersion); FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type)); return (iter != formats.end()) ? iter->second.mColorWriteFunction : NULL; } }