| // |
| // Copyright (c) 2013-2014 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 "common/mathutil.h" |
| #include "libANGLE/formatutils.h" |
| #include "libANGLE/Context.h" |
| #include "libANGLE/Framebuffer.h" |
| #include "libANGLE/renderer/Renderer.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. |
| |
| typedef std::pair<GLenum, GLenum> FormatTypePair; |
| typedef std::pair<FormatTypePair, GLenum> FormatPair; |
| typedef std::map<FormatTypePair, GLenum> 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) |
| { |
| map->insert(FormatPair(FormatTypePair(format, type), internalFormat)); |
| } |
| |
| FormatMap BuildFormatMap() |
| { |
| FormatMap map; |
| |
| // | Format | Type | Internal format | |
| InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_BYTE, GL_RGBA8); |
| InsertFormatMapping(&map, GL_RGBA, GL_BYTE, GL_RGBA8_SNORM); |
| InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_RGBA4); |
| InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_RGB5_A1); |
| InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_RGB10_A2); |
| InsertFormatMapping(&map, GL_RGBA, GL_FLOAT, GL_RGBA32F); |
| InsertFormatMapping(&map, GL_RGBA, GL_HALF_FLOAT, GL_RGBA16F); |
| InsertFormatMapping(&map, GL_RGBA, GL_HALF_FLOAT_OES, GL_RGBA16F); |
| |
| InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_RGBA8UI); |
| InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_BYTE, GL_RGBA8I); |
| InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_RGBA16UI); |
| InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_SHORT, GL_RGBA16I); |
| InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_RGBA32UI); |
| InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_INT, GL_RGBA32I); |
| InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_RGB10_A2UI); |
| |
| InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_BYTE, GL_RGB8); |
| InsertFormatMapping(&map, GL_RGB, GL_BYTE, GL_RGB8_SNORM); |
| InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_RGB565); |
| InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_R11F_G11F_B10F); |
| InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_RGB9_E5); |
| InsertFormatMapping(&map, GL_RGB, GL_FLOAT, GL_RGB32F); |
| InsertFormatMapping(&map, GL_RGB, GL_HALF_FLOAT, GL_RGB16F); |
| InsertFormatMapping(&map, GL_RGB, GL_HALF_FLOAT_OES, GL_RGB16F); |
| |
| InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_RGB8UI); |
| InsertFormatMapping(&map, GL_RGB_INTEGER, GL_BYTE, GL_RGB8I); |
| InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_RGB16UI); |
| InsertFormatMapping(&map, GL_RGB_INTEGER, GL_SHORT, GL_RGB16I); |
| InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_RGB32UI); |
| InsertFormatMapping(&map, GL_RGB_INTEGER, GL_INT, GL_RGB32I); |
| |
| InsertFormatMapping(&map, GL_RG, GL_UNSIGNED_BYTE, GL_RG8); |
| InsertFormatMapping(&map, GL_RG, GL_BYTE, GL_RG8_SNORM); |
| InsertFormatMapping(&map, GL_RG, GL_FLOAT, GL_RG32F); |
| InsertFormatMapping(&map, GL_RG, GL_HALF_FLOAT, GL_RG16F); |
| InsertFormatMapping(&map, GL_RG, GL_HALF_FLOAT_OES, GL_RG16F); |
| |
| InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_RG8UI); |
| InsertFormatMapping(&map, GL_RG_INTEGER, GL_BYTE, GL_RG8I); |
| InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_RG16UI); |
| InsertFormatMapping(&map, GL_RG_INTEGER, GL_SHORT, GL_RG16I); |
| InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_RG32UI); |
| InsertFormatMapping(&map, GL_RG_INTEGER, GL_INT, GL_RG32I); |
| |
| InsertFormatMapping(&map, GL_RED, GL_UNSIGNED_BYTE, GL_R8); |
| InsertFormatMapping(&map, GL_RED, GL_BYTE, GL_R8_SNORM); |
| InsertFormatMapping(&map, GL_RED, GL_FLOAT, GL_R32F); |
| InsertFormatMapping(&map, GL_RED, GL_HALF_FLOAT, GL_R16F); |
| InsertFormatMapping(&map, GL_RED, GL_HALF_FLOAT_OES, GL_R16F); |
| |
| InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_R8UI); |
| InsertFormatMapping(&map, GL_RED_INTEGER, GL_BYTE, GL_R8I); |
| InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_R16UI); |
| InsertFormatMapping(&map, GL_RED_INTEGER, GL_SHORT, GL_R16I); |
| InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_R32UI); |
| InsertFormatMapping(&map, GL_RED_INTEGER, GL_INT, GL_R32I); |
| |
| InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_LUMINANCE8_ALPHA8_EXT); |
| InsertFormatMapping(&map, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_LUMINANCE8_EXT); |
| InsertFormatMapping(&map, GL_ALPHA, GL_UNSIGNED_BYTE, GL_ALPHA8_EXT); |
| InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_LUMINANCE_ALPHA32F_EXT); |
| InsertFormatMapping(&map, GL_LUMINANCE, GL_FLOAT, GL_LUMINANCE32F_EXT); |
| InsertFormatMapping(&map, GL_ALPHA, GL_FLOAT, GL_ALPHA32F_EXT); |
| InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, GL_LUMINANCE_ALPHA16F_EXT); |
| InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_LUMINANCE_ALPHA16F_EXT); |
| InsertFormatMapping(&map, GL_LUMINANCE, GL_HALF_FLOAT, GL_LUMINANCE16F_EXT); |
| InsertFormatMapping(&map, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_LUMINANCE16F_EXT); |
| InsertFormatMapping(&map, GL_ALPHA, GL_HALF_FLOAT, GL_ALPHA16F_EXT); |
| InsertFormatMapping(&map, GL_ALPHA, GL_HALF_FLOAT_OES, GL_ALPHA16F_EXT); |
| |
| InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_BGRA8_EXT); |
| InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_BGRA4_ANGLEX); |
| InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_BGR5_A1_ANGLEX); |
| |
| InsertFormatMapping(&map, GL_SRGB_EXT, GL_UNSIGNED_BYTE, GL_SRGB8); |
| InsertFormatMapping(&map, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, GL_SRGB8_ALPHA8); |
| |
| InsertFormatMapping(&map, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGB_S3TC_DXT1_EXT); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE); |
| |
| InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_DEPTH_COMPONENT16); |
| InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_DEPTH_COMPONENT32_OES); |
| InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_FLOAT, GL_DEPTH_COMPONENT32F); |
| |
| InsertFormatMapping(&map, GL_STENCIL, GL_UNSIGNED_BYTE, GL_STENCIL_INDEX8); |
| |
| InsertFormatMapping(&map, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_DEPTH24_STENCIL8); |
| InsertFormatMapping(&map, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_DEPTH32F_STENCIL8); |
| |
| return map; |
| } |
| |
| Type::Type() |
| : bytes(0), |
| bytesShift(0), |
| specialInterpretation(false) |
| { |
| } |
| |
| static Type GenTypeInfo(GLuint bytes, bool specialInterpretation) |
| { |
| Type info; |
| info.bytes = bytes; |
| GLuint i = 0; |
| while ((1u << i) < bytes) |
| { |
| ++i; |
| } |
| info.bytesShift = i; |
| ASSERT((1u << info.bytesShift) == bytes); |
| info.specialInterpretation = specialInterpretation; |
| return info; |
| } |
| |
| bool operator<(const Type& a, const Type& b) |
| { |
| return memcmp(&a, &b, sizeof(Type)) < 0; |
| } |
| |
| // Information about internal formats |
| static bool AlwaysSupported(GLuint, const Extensions &) |
| { |
| return true; |
| } |
| |
| static bool UnimplementedSupport(GLuint, const Extensions &) |
| { |
| return false; |
| } |
| |
| static bool NeverSupported(GLuint, const Extensions &) |
| { |
| return false; |
| } |
| |
| template <GLuint minCoreGLVersion> |
| static bool RequireES(GLuint clientVersion, const Extensions &) |
| { |
| return clientVersion >= minCoreGLVersion; |
| } |
| |
| // Pointer to a boolean memeber of the Extensions struct |
| typedef bool(Extensions::*ExtensionBool); |
| |
| // Check support for a single extension |
| template <ExtensionBool bool1> |
| static bool RequireExt(GLuint, const Extensions & extensions) |
| { |
| return extensions.*bool1; |
| } |
| |
| // Check for a minimum client version or a single extension |
| template <GLuint minCoreGLVersion, ExtensionBool bool1> |
| static bool RequireESOrExt(GLuint clientVersion, const Extensions &extensions) |
| { |
| return clientVersion >= minCoreGLVersion || extensions.*bool1; |
| } |
| |
| // Check for a minimum client version or two extensions |
| template <GLuint minCoreGLVersion, ExtensionBool bool1, ExtensionBool bool2> |
| static bool RequireESOrExtAndExt(GLuint clientVersion, const Extensions &extensions) |
| { |
| return clientVersion >= minCoreGLVersion || (extensions.*bool1 && extensions.*bool2); |
| } |
| |
| // Check for a minimum client version or at least one of two extensions |
| template <GLuint minCoreGLVersion, ExtensionBool bool1, ExtensionBool bool2> |
| static bool RequireESOrExtOrExt(GLuint clientVersion, const Extensions &extensions) |
| { |
| return clientVersion >= minCoreGLVersion || extensions.*bool1 || extensions.*bool2; |
| } |
| |
| // Check support for two extensions |
| template <ExtensionBool bool1, ExtensionBool bool2> |
| static bool RequireExtAndExt(GLuint, const Extensions &extensions) |
| { |
| return extensions.*bool1 && extensions.*bool2; |
| } |
| |
| InternalFormat::InternalFormat() |
| : redBits(0), |
| greenBits(0), |
| blueBits(0), |
| luminanceBits(0), |
| alphaBits(0), |
| sharedBits(0), |
| depthBits(0), |
| stencilBits(0), |
| pixelBytes(0), |
| componentCount(0), |
| compressedBlockWidth(0), |
| compressedBlockHeight(0), |
| format(GL_NONE), |
| type(GL_NONE), |
| componentType(GL_NONE), |
| colorEncoding(GL_NONE), |
| compressed(false), |
| textureSupport(NeverSupported), |
| renderSupport(NeverSupported), |
| filterSupport(NeverSupported) |
| { |
| } |
| |
| static InternalFormat UnsizedFormat(GLenum format, InternalFormat::SupportCheckFunction textureSupport, |
| InternalFormat::SupportCheckFunction renderSupport, |
| InternalFormat::SupportCheckFunction filterSupport) |
| { |
| InternalFormat formatInfo; |
| formatInfo.format = format; |
| formatInfo.textureSupport = textureSupport; |
| formatInfo.renderSupport = renderSupport; |
| formatInfo.filterSupport = filterSupport; |
| return formatInfo; |
| } |
| |
| static InternalFormat RGBAFormat(GLuint red, GLuint green, GLuint blue, GLuint alpha, GLuint shared, |
| GLenum format, GLenum type, GLenum componentType, bool srgb, |
| InternalFormat::SupportCheckFunction textureSupport, |
| InternalFormat::SupportCheckFunction renderSupport, |
| InternalFormat::SupportCheckFunction filterSupport) |
| { |
| InternalFormat formatInfo; |
| formatInfo.redBits = red; |
| formatInfo.greenBits = green; |
| formatInfo.blueBits = blue; |
| formatInfo.alphaBits = alpha; |
| formatInfo.sharedBits = shared; |
| formatInfo.pixelBytes = (red + green + blue + alpha + shared) / 8; |
| formatInfo.componentCount = ((red > 0) ? 1 : 0) + ((green > 0) ? 1 : 0) + ((blue > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0); |
| formatInfo.format = format; |
| formatInfo.type = type; |
| formatInfo.componentType = componentType; |
| formatInfo.colorEncoding = (srgb ? GL_SRGB : GL_LINEAR); |
| formatInfo.textureSupport = textureSupport; |
| formatInfo.renderSupport = renderSupport; |
| formatInfo.filterSupport = filterSupport; |
| return formatInfo; |
| } |
| |
| static InternalFormat LUMAFormat(GLuint luminance, GLuint alpha, GLenum format, GLenum type, GLenum componentType, |
| InternalFormat::SupportCheckFunction textureSupport, |
| InternalFormat::SupportCheckFunction renderSupport, |
| InternalFormat::SupportCheckFunction filterSupport) |
| { |
| InternalFormat formatInfo; |
| formatInfo.luminanceBits = luminance; |
| formatInfo.alphaBits = alpha; |
| formatInfo.pixelBytes = (luminance + alpha) / 8; |
| formatInfo.componentCount = ((luminance > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0); |
| formatInfo.format = format; |
| formatInfo.type = type; |
| formatInfo.componentType = componentType; |
| formatInfo.colorEncoding = GL_LINEAR; |
| formatInfo.textureSupport = textureSupport; |
| formatInfo.renderSupport = renderSupport; |
| formatInfo.filterSupport = filterSupport; |
| return formatInfo; |
| } |
| |
| static InternalFormat DepthStencilFormat(GLuint depthBits, GLuint stencilBits, GLuint unusedBits, GLenum format, |
| GLenum type, GLenum componentType, InternalFormat::SupportCheckFunction textureSupport, |
| InternalFormat::SupportCheckFunction renderSupport, |
| InternalFormat::SupportCheckFunction filterSupport) |
| { |
| InternalFormat formatInfo; |
| formatInfo.depthBits = depthBits; |
| formatInfo.stencilBits = stencilBits; |
| formatInfo.pixelBytes = (depthBits + stencilBits + unusedBits) / 8; |
| formatInfo.componentCount = ((depthBits > 0) ? 1 : 0) + ((stencilBits > 0) ? 1 : 0); |
| formatInfo.format = format; |
| formatInfo.type = type; |
| formatInfo.componentType = componentType; |
| formatInfo.colorEncoding = GL_LINEAR; |
| formatInfo.textureSupport = textureSupport; |
| formatInfo.renderSupport = renderSupport; |
| formatInfo.filterSupport = filterSupport; |
| return formatInfo; |
| } |
| |
| static InternalFormat CompressedFormat(GLuint compressedBlockWidth, GLuint compressedBlockHeight, GLuint compressedBlockSize, |
| GLuint componentCount, GLenum format, GLenum type, bool srgb, |
| InternalFormat::SupportCheckFunction textureSupport, |
| InternalFormat::SupportCheckFunction renderSupport, |
| InternalFormat::SupportCheckFunction filterSupport) |
| { |
| InternalFormat formatInfo; |
| formatInfo.compressedBlockWidth = compressedBlockWidth; |
| formatInfo.compressedBlockHeight = compressedBlockHeight; |
| formatInfo.pixelBytes = compressedBlockSize / 8; |
| formatInfo.componentCount = componentCount; |
| formatInfo.format = format; |
| formatInfo.type = type; |
| formatInfo.componentType = GL_UNSIGNED_NORMALIZED; |
| formatInfo.colorEncoding = (srgb ? GL_SRGB : GL_LINEAR); |
| formatInfo.compressed = true; |
| formatInfo.textureSupport = textureSupport; |
| formatInfo.renderSupport = renderSupport; |
| formatInfo.filterSupport = filterSupport; |
| return formatInfo; |
| } |
| |
| typedef std::pair<GLenum, InternalFormat> InternalFormatInfoPair; |
| typedef std::map<GLenum, InternalFormat> InternalFormatInfoMap; |
| |
| static InternalFormatInfoMap BuildInternalFormatInfoMap() |
| { |
| InternalFormatInfoMap map; |
| |
| // From ES 3.0.1 spec, table 3.12 |
| map.insert(InternalFormatInfoPair(GL_NONE, InternalFormat())); |
| |
| // | Internal format | | R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Renderable | Filterable | |
| map.insert(InternalFormatInfoPair(GL_R8, RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, &Extensions::textureRG>, RequireESOrExt<3, &Extensions::textureRG>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_R8_SNORM, RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RG8, RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, &Extensions::textureRG>, RequireESOrExt<3, &Extensions::textureRG>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RG8_SNORM, RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB8, RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, &Extensions::rgb8rgba8>, RequireESOrExt<3, &Extensions::rgb8rgba8>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB8_SNORM, RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB565, RGBAFormat( 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, RequireES<2>, RequireES<2>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGBA4, RGBAFormat( 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, RequireES<2>, RequireES<2>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB5_A1, RGBAFormat( 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, RequireES<2>, RequireES<2>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGBA8, RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, &Extensions::rgb8rgba8>, RequireESOrExt<3, &Extensions::rgb8rgba8>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGBA8_SNORM, RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB10_A2, RGBAFormat(10, 10, 10, 2, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, RequireES<3>, RequireES<3>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB10_A2UI, RGBAFormat(10, 10, 10, 2, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_INT, false, RequireES<3>, NeverSupported, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_SRGB8, RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireESOrExt<3, &Extensions::sRGB>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_SRGB8_ALPHA8, RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireESOrExt<3, &Extensions::sRGB>, RequireESOrExt<3, &Extensions::sRGB>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_R11F_G11F_B10F, RGBAFormat(11, 11, 10, 0, 0, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_FLOAT, false, RequireES<3>, RequireExt<&Extensions::colorBufferFloat>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB9_E5, RGBAFormat( 9, 9, 9, 0, 5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_FLOAT, false, RequireES<3>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_R8I, RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_R8UI, RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_R16I, RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_R16UI, RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_R32I, RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_R32UI, RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RG8I, RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RG8UI, RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RG16I, RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RG16UI, RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RG32I, RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RG32UI, RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB8I, RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, GL_INT, false, RequireES<3>, NeverSupported, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB8UI, RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3>, NeverSupported, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB16I, RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, GL_INT, false, RequireES<3>, NeverSupported, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB16UI, RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3>, NeverSupported, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB32I, RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, GL_INT, false, RequireES<3>, NeverSupported, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB32UI, RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3>, NeverSupported, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGBA8I, RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGBA8UI, RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGBA16I, RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGBA16UI, RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGBA32I, RGBAFormat(32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGBA32UI, RGBAFormat(32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported))); |
| |
| map.insert(InternalFormatInfoPair(GL_BGRA8_EXT, RGBAFormat( 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_BGRA4_ANGLEX, RGBAFormat( 4, 4, 4, 4, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_BGR5_A1_ANGLEX, RGBAFormat( 5, 5, 5, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>, 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 | Texture supported | Renderable | Filterable | |
| // | | | | | | | type | | | | | |
| map.insert(InternalFormatInfoPair(GL_R16F, RGBAFormat(16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, GL_FLOAT, false, RequireESOrExtAndExt<3, &Extensions::textureHalfFloat, &Extensions::textureRG>, RequireESOrExtAndExt<3, &Extensions::textureHalfFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureHalfFloatLinear>))); |
| map.insert(InternalFormatInfoPair(GL_RG16F, RGBAFormat(16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, GL_FLOAT, false, RequireESOrExtAndExt<3, &Extensions::textureHalfFloat, &Extensions::textureRG>, RequireESOrExtAndExt<3, &Extensions::textureHalfFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureHalfFloatLinear>))); |
| map.insert(InternalFormatInfoPair(GL_RGB16F, RGBAFormat(16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, RequireESOrExt<3, &Extensions::textureHalfFloat>, RequireESOrExt<3, &Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>))); |
| map.insert(InternalFormatInfoPair(GL_RGBA16F, RGBAFormat(16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, GL_FLOAT, false, RequireESOrExt<3, &Extensions::textureHalfFloat>, RequireESOrExt<3, &Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>))); |
| map.insert(InternalFormatInfoPair(GL_R32F, RGBAFormat(32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, RequireESOrExtAndExt<3, &Extensions::textureFloat, &Extensions::textureRG>, RequireESOrExtAndExt<3, &Extensions::textureFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureFloatLinear> ))); |
| map.insert(InternalFormatInfoPair(GL_RG32F, RGBAFormat(32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, RequireESOrExtAndExt<3, &Extensions::textureFloat, &Extensions::textureRG>, RequireESOrExtAndExt<3, &Extensions::textureFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureFloatLinear> ))); |
| map.insert(InternalFormatInfoPair(GL_RGB32F, RGBAFormat(32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, RequireESOrExt<3, &Extensions::textureFloat>, RequireESOrExt<3, &Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear> ))); |
| map.insert(InternalFormatInfoPair(GL_RGBA32F, RGBAFormat(32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, RequireESOrExt<3, &Extensions::textureFloat>, RequireESOrExt<3, &Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear> ))); |
| |
| // Depth stencil formats |
| // | Internal format | | D |S | X | Format | Type | Component type | Supported | Renderable | Filterable | |
| map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT16, DepthStencilFormat(16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, RequireES<2>, RequireES<2>, RequireESOrExt<3, &Extensions::depthTextures>))); |
| map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT24, DepthStencilFormat(24, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireES<3>, RequireES<3>, RequireESOrExt<3, &Extensions::depthTextures>))); |
| map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32F, DepthStencilFormat(32, 0, 0, GL_DEPTH_COMPONENT, GL_FLOAT, GL_FLOAT, RequireES<3>, RequireES<3>, RequireESOrExt<3, &Extensions::depthTextures>))); |
| map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32_OES, DepthStencilFormat(32, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::depthTextures>, RequireExt<&Extensions::depthTextures>, AlwaysSupported ))); |
| map.insert(InternalFormatInfoPair(GL_DEPTH24_STENCIL8, DepthStencilFormat(24, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_NORMALIZED, RequireESOrExt<3, &Extensions::depthTextures>, RequireESOrExtOrExt<3, &Extensions::depthTextures, &Extensions::packedDepthStencil>, AlwaysSupported ))); |
| map.insert(InternalFormatInfoPair(GL_DEPTH32F_STENCIL8, DepthStencilFormat(32, 8, 24, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_FLOAT, RequireES<3>, RequireES<3>, AlwaysSupported ))); |
| // STENCIL_INDEX8 is special-cased, see around the bottom of the list. |
| |
| // Luminance alpha formats |
| // | Internal format | | L | A | Format | Type | Component type | Supported | Renderable | Filterable | |
| map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA16F_EXT, LUMAFormat(16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, NeverSupported, AlwaysSupported))); |
| |
| // Unsized formats |
| // | Internal format | | Format | Supported | Renderable | Filterable | |
| map.insert(InternalFormatInfoPair(GL_ALPHA, UnsizedFormat(GL_ALPHA, RequireES<2>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_LUMINANCE, UnsizedFormat(GL_LUMINANCE, RequireES<2>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA, UnsizedFormat(GL_LUMINANCE_ALPHA, RequireES<2>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RED, UnsizedFormat(GL_RED, RequireESOrExt<3, &Extensions::textureRG>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RG, UnsizedFormat(GL_RG, RequireESOrExt<3, &Extensions::textureRG>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGB, UnsizedFormat(GL_RGB, RequireES<2>, RequireES<2>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RGBA, UnsizedFormat(GL_RGBA, RequireES<2>, RequireES<2>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_RED_INTEGER, UnsizedFormat(GL_RED_INTEGER, RequireES<3>, NeverSupported, NeverSupported ))); |
| map.insert(InternalFormatInfoPair(GL_RG_INTEGER, UnsizedFormat(GL_RG_INTEGER, RequireES<3>, NeverSupported, NeverSupported ))); |
| map.insert(InternalFormatInfoPair(GL_RGB_INTEGER, UnsizedFormat(GL_RGB_INTEGER, RequireES<3>, NeverSupported, NeverSupported ))); |
| map.insert(InternalFormatInfoPair(GL_RGBA_INTEGER, UnsizedFormat(GL_RGBA_INTEGER, RequireES<3>, NeverSupported, NeverSupported ))); |
| map.insert(InternalFormatInfoPair(GL_BGRA_EXT, UnsizedFormat(GL_BGRA_EXT, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT, UnsizedFormat(GL_DEPTH_COMPONENT, RequireES<2>, RequireES<2>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_DEPTH_STENCIL, UnsizedFormat(GL_DEPTH_STENCIL, RequireESOrExt<3, &Extensions::packedDepthStencil>, RequireESOrExt<3, &Extensions::packedDepthStencil>, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_SRGB_EXT, UnsizedFormat(GL_RGB, RequireESOrExt<3, &Extensions::sRGB>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_SRGB_ALPHA_EXT, UnsizedFormat(GL_RGBA, RequireESOrExt<3, &Extensions::sRGB>, RequireESOrExt<3, &Extensions::sRGB>, AlwaysSupported))); |
| |
| // Compressed formats, From ES 3.0.1 spec, table 3.16 |
| // | Internal format | |W |H | BS |CC| Format | Type | SRGB | Supported | Renderable | Filterable | |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_R11_EAC, CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport, UnimplementedSupport, UnimplementedSupport))); |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_R11_EAC, CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport, UnimplementedSupport, UnimplementedSupport))); |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_RG11_EAC, CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport, UnimplementedSupport, UnimplementedSupport))); |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_RG11_EAC, CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_SIGNED_RG11_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport, UnimplementedSupport, UnimplementedSupport))); |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_ETC2, CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE, false, UnimplementedSupport, UnimplementedSupport, UnimplementedSupport))); |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ETC2, CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE, true, UnimplementedSupport, UnimplementedSupport, UnimplementedSupport))); |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE, false, UnimplementedSupport, UnimplementedSupport, UnimplementedSupport))); |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE, true, UnimplementedSupport, UnimplementedSupport, UnimplementedSupport))); |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA8_ETC2_EAC, CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport, UnimplementedSupport, UnimplementedSupport))); |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_UNSIGNED_BYTE, true, UnimplementedSupport, UnimplementedSupport, UnimplementedSupport))); |
| |
| // From GL_EXT_texture_compression_dxt1 |
| // | Internal format | |W |H | BS |CC| Format | Type | SRGB | Supported | Renderable | Filterable | |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB_S3TC_DXT1_EXT, CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::textureCompressionDXT1>, NeverSupported, AlwaysSupported))); |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, CompressedFormat(4, 4, 64, 4, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::textureCompressionDXT1>, NeverSupported, AlwaysSupported))); |
| |
| // From GL_ANGLE_texture_compression_dxt3 |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::textureCompressionDXT5>, NeverSupported, AlwaysSupported))); |
| |
| // From GL_ANGLE_texture_compression_dxt5 |
| map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::textureCompressionDXT5>, NeverSupported, AlwaysSupported))); |
| |
| // For STENCIL_INDEX8 we chose a normalized component type for the following reasons: |
| // - Multisampled buffer are disallowed for non-normalized integer component types and we want to support it for STENCIL_INDEX8 |
| // - All other stencil formats (all depth-stencil) are either float or normalized |
| // - It affects only validation of internalformat in RenderbufferStorageMultisample. |
| // | Internal format | |D |S |X | Format | Type | Component type | Supported | Renderable | Filterable | |
| map.insert(InternalFormatInfoPair(GL_STENCIL_INDEX8, DepthStencilFormat(0, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<2>, RequireES<2>, NeverSupported))); |
| |
| return map; |
| } |
| |
| static const InternalFormatInfoMap &GetInternalFormatMap() |
| { |
| static const InternalFormatInfoMap formatMap = BuildInternalFormatInfoMap(); |
| return formatMap; |
| } |
| |
| static FormatSet BuildAllSizedInternalFormatSet() |
| { |
| FormatSet result; |
| |
| const InternalFormatInfoMap &formats = GetInternalFormatMap(); |
| for (InternalFormatInfoMap::const_iterator i = formats.begin(); i != formats.end(); i++) |
| { |
| if (i->second.pixelBytes > 0) |
| { |
| result.insert(i->first); |
| } |
| } |
| |
| return result; |
| } |
| |
| const Type &GetTypeInfo(GLenum type) |
| { |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| case GL_BYTE: |
| { |
| static const Type info = GenTypeInfo(1, false); |
| return info; |
| } |
| case GL_UNSIGNED_SHORT: |
| case GL_SHORT: |
| case GL_HALF_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| { |
| static const Type info = GenTypeInfo(2, false); |
| return info; |
| } |
| case GL_UNSIGNED_INT: |
| case GL_INT: |
| case GL_FLOAT: |
| { |
| static const Type info = GenTypeInfo(4, false); |
| return info; |
| } |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT: |
| case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT: |
| { |
| static const Type info = GenTypeInfo(2, true); |
| return info; |
| } |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| case GL_UNSIGNED_INT_24_8: |
| case GL_UNSIGNED_INT_10F_11F_11F_REV: |
| case GL_UNSIGNED_INT_5_9_9_9_REV: |
| { |
| ASSERT(GL_UNSIGNED_INT_24_8_OES == GL_UNSIGNED_INT_24_8); |
| static const Type info = GenTypeInfo(4, true); |
| return info; |
| } |
| case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: |
| { |
| static const Type info = GenTypeInfo(8, true); |
| return info; |
| } |
| default: |
| { |
| static const Type defaultInfo; |
| return defaultInfo; |
| } |
| } |
| } |
| |
| const InternalFormat &GetInternalFormatInfo(GLenum internalFormat) |
| { |
| const InternalFormatInfoMap &formatMap = GetInternalFormatMap(); |
| InternalFormatInfoMap::const_iterator iter = formatMap.find(internalFormat); |
| if (iter != formatMap.end()) |
| { |
| return iter->second; |
| } |
| else |
| { |
| static const InternalFormat defaultInternalFormat; |
| return defaultInternalFormat; |
| } |
| } |
| |
| GLuint InternalFormat::computeRowPitch(GLenum formatType, GLsizei width, GLint alignment, GLint rowLength) const |
| { |
| ASSERT(alignment > 0 && isPow2(alignment)); |
| GLuint rowBytes; |
| if (rowLength > 0) |
| { |
| ASSERT(!compressed); |
| rowBytes = pixelBytes * rowLength; |
| } |
| else |
| { |
| rowBytes = computeBlockSize(formatType, width, 1); |
| } |
| return rx::roundUp(rowBytes, static_cast<GLuint>(alignment)); |
| } |
| |
| GLuint InternalFormat::computeDepthPitch(GLenum formatType, GLsizei width, GLsizei height, GLint alignment, GLint rowLength) const |
| { |
| return computeRowPitch(formatType, width, alignment, rowLength) * height; |
| } |
| |
| GLuint InternalFormat::computeBlockSize(GLenum formatType, GLsizei width, GLsizei height) const |
| { |
| if (compressed) |
| { |
| GLsizei numBlocksWide = (width + compressedBlockWidth - 1) / compressedBlockWidth; |
| GLsizei numBlocksHight = (height + compressedBlockHeight - 1) / compressedBlockHeight; |
| return (pixelBytes * numBlocksWide * numBlocksHight); |
| } |
| else |
| { |
| const Type &typeInfo = GetTypeInfo(formatType); |
| if (typeInfo.specialInterpretation) |
| { |
| return typeInfo.bytes * width * height; |
| } |
| else |
| { |
| return componentCount * typeInfo.bytes * width * height; |
| } |
| } |
| } |
| |
| GLenum GetSizedInternalFormat(GLenum internalFormat, GLenum type) |
| { |
| const InternalFormat& formatInfo = GetInternalFormatInfo(internalFormat); |
| if (formatInfo.pixelBytes > 0) |
| { |
| return internalFormat; |
| } |
| else |
| { |
| static const FormatMap formatMap = BuildFormatMap(); |
| FormatMap::const_iterator iter = formatMap.find(FormatTypePair(internalFormat, type)); |
| if (iter != formatMap.end()) |
| { |
| return iter->second; |
| } |
| else |
| { |
| return GL_NONE; |
| } |
| } |
| } |
| |
| const FormatSet &GetAllSizedInternalFormats() |
| { |
| static FormatSet formatSet = BuildAllSizedInternalFormatSet(); |
| return formatSet; |
| } |
| |
| } |