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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
| commit | 2aa4a82499d4becd2284cdb482213d541b8804dd (patch) | |
| tree | b80bf8bf13c3766139fbacc530efd0dd9d54394c /gfx/angle/checkout/src/libANGLE/formatutils.cpp | |
| parent | Initial commit. (diff) | |
| download | firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.zip | |
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/angle/checkout/src/libANGLE/formatutils.cpp')
| -rw-r--r-- | gfx/angle/checkout/src/libANGLE/formatutils.cpp | 2294 |
1 files changed, 2294 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/libANGLE/formatutils.cpp b/gfx/angle/checkout/src/libANGLE/formatutils.cpp new file mode 100644 index 0000000000..6533eb81d1 --- /dev/null +++ b/gfx/angle/checkout/src/libANGLE/formatutils.cpp @@ -0,0 +1,2294 @@ +// +// 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 "libANGLE/formatutils.h" + +#include "common/mathutil.h" +#include "libANGLE/Context.h" +#include "libANGLE/Framebuffer.h" + +using namespace angle; + +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. +GLenum GetSizedFormatInternal(GLenum format, GLenum type); + +namespace +{ +using InternalFormatInfoMap = + std::unordered_map<GLenum, std::unordered_map<GLenum, InternalFormat>>; + +bool CheckedMathResult(const CheckedNumeric<GLuint> &value, GLuint *resultOut) +{ + if (!value.IsValid()) + { + return false; + } + else + { + *resultOut = value.ValueOrDie(); + return true; + } +} + +constexpr uint32_t PackTypeInfo(GLuint bytes, bool specialized) +{ + // static_assert within constexpr requires c++17 + // static_assert(isPow2(bytes)); + return bytes | (rx::Log2(bytes) << 8) | (specialized << 16); +} + +} // anonymous namespace + +FormatType::FormatType() : format(GL_NONE), type(GL_NONE) {} + +FormatType::FormatType(GLenum format_, GLenum type_) : format(format_), type(type_) {} + +bool FormatType::operator<(const FormatType &other) const +{ + if (format != other.format) + return format < other.format; + return type < other.type; +} + +bool operator<(const Type &a, const Type &b) +{ + return memcmp(&a, &b, sizeof(Type)) < 0; +} + +// Information about internal formats +static bool AlwaysSupported(const Version &, const Extensions &) +{ + return true; +} + +static bool NeverSupported(const Version &, const Extensions &) +{ + return false; +} + +template <GLuint minCoreGLMajorVersion, GLuint minCoreGLMinorVersion> +static bool RequireES(const Version &clientVersion, const Extensions &) +{ + return clientVersion >= Version(minCoreGLMajorVersion, minCoreGLMinorVersion); +} + +// 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(const Version &, const Extensions &extensions) +{ + return extensions.*bool1; +} + +// Check for a minimum client version or a single extension +template <GLuint minCoreGLMajorVersion, GLuint minCoreGLMinorVersion, ExtensionBool bool1> +static bool RequireESOrExt(const Version &clientVersion, const Extensions &extensions) +{ + return clientVersion >= Version(minCoreGLMajorVersion, minCoreGLMinorVersion) || + extensions.*bool1; +} + +// Check for a minimum client version or two extensions +template <GLuint minCoreGLMajorVersion, + GLuint minCoreGLMinorVersion, + ExtensionBool bool1, + ExtensionBool bool2> +static bool RequireESOrExtAndExt(const Version &clientVersion, const Extensions &extensions) +{ + return clientVersion >= Version(minCoreGLMajorVersion, minCoreGLMinorVersion) || + (extensions.*bool1 && extensions.*bool2); +} + +// Check for a minimum client version or at least one of two extensions +template <GLuint minCoreGLMajorVersion, + GLuint minCoreGLMinorVersion, + ExtensionBool bool1, + ExtensionBool bool2> +static bool RequireESOrExtOrExt(const Version &clientVersion, const Extensions &extensions) +{ + return clientVersion >= Version(minCoreGLMajorVersion, minCoreGLMinorVersion) || + extensions.*bool1 || extensions.*bool2; +} + +// Check support for two extensions +template <ExtensionBool bool1, ExtensionBool bool2> +static bool RequireExtAndExt(const Version &, const Extensions &extensions) +{ + return extensions.*bool1 && extensions.*bool2; +} + +// Check support for either of two extensions +template <ExtensionBool bool1, ExtensionBool bool2> +static bool RequireExtOrExt(const Version &, const Extensions &extensions) +{ + return extensions.*bool1 || extensions.*bool2; +} + +// Check support for any of three extensions +template <ExtensionBool bool1, ExtensionBool bool2, ExtensionBool bool3> +static bool RequireExtOrExtOrExt(const Version &, const Extensions &extensions) +{ + return extensions.*bool1 || extensions.*bool2 || extensions.*bool3; +} + +// R8, RG8 +static bool SizedRGSupport(const Version &clientVersion, const Extensions &extensions) +{ + return clientVersion >= Version(3, 0) || (extensions.textureStorage && extensions.textureRG); +} + +// R16F, RG16F with HALF_FLOAT_OES type +static bool SizedHalfFloatOESRGSupport(const Version &clientVersion, const Extensions &extensions) +{ + return extensions.textureStorage && extensions.textureHalfFloat && extensions.textureRG; +} + +static bool SizedHalfFloatOESRGTextureAttachmentSupport(const Version &clientVersion, + const Extensions &extensions) +{ + return SizedHalfFloatOESRGSupport(clientVersion, extensions) && extensions.colorBufferHalfFloat; +} + +// R16F, RG16F with either HALF_FLOAT_OES or HALF_FLOAT types +static bool SizedHalfFloatRGSupport(const Version &clientVersion, const Extensions &extensions) +{ + // HALF_FLOAT + if (clientVersion >= Version(3, 0)) + { + return true; + } + // HALF_FLOAT_OES + else + { + return SizedHalfFloatOESRGSupport(clientVersion, extensions); + } +} + +static bool SizedHalfFloatRGTextureAttachmentSupport(const Version &clientVersion, + const Extensions &extensions) +{ + // HALF_FLOAT + if (clientVersion >= Version(3, 0)) + { + return extensions.colorBufferFloat; + } + // HALF_FLOAT_OES + else + { + return SizedHalfFloatOESRGTextureAttachmentSupport(clientVersion, extensions); + } +} + +static bool SizedHalfFloatRGRenderbufferSupport(const Version &clientVersion, + const Extensions &extensions) +{ + return (clientVersion >= Version(3, 0) || + (extensions.textureHalfFloat && extensions.textureRG)) && + (extensions.colorBufferFloat || extensions.colorBufferHalfFloat); +} + +// RGB16F, RGBA16F with HALF_FLOAT_OES type +static bool SizedHalfFloatOESSupport(const Version &clientVersion, const Extensions &extensions) +{ + return extensions.textureStorage && extensions.textureHalfFloat; +} + +static bool SizedHalfFloatOESTextureAttachmentSupport(const Version &clientVersion, + const Extensions &extensions) +{ + return SizedHalfFloatOESSupport(clientVersion, extensions) && extensions.colorBufferHalfFloat; +} + +// RGB16F, RGBA16F with either HALF_FLOAT_OES or HALF_FLOAT types +static bool SizedHalfFloatSupport(const Version &clientVersion, const Extensions &extensions) +{ + // HALF_FLOAT + if (clientVersion >= Version(3, 0)) + { + return true; + } + // HALF_FLOAT_OES + else + { + return SizedHalfFloatOESSupport(clientVersion, extensions); + } +} + +static bool SizedHalfFloatFilterSupport(const Version &clientVersion, const Extensions &extensions) +{ + // HALF_FLOAT + if (clientVersion >= Version(3, 0)) + { + return true; + } + // HALF_FLOAT_OES + else + { + return extensions.textureHalfFloatLinear; + } +} + +static bool SizedHalfFloatRGBTextureAttachmentSupport(const Version &clientVersion, + const Extensions &extensions) +{ + // HALF_FLOAT + if (clientVersion >= Version(3, 0)) + { + // It is unclear how EXT_color_buffer_half_float applies to ES3.0 and above, however, + // dEQP GLES3 es3fFboColorbufferTests.cpp verifies that texture attachment of GL_RGB16F + // is possible, so assume that all GLES implementations support it. + return extensions.colorBufferHalfFloat; + } + // HALF_FLOAT_OES + else + { + return SizedHalfFloatOESTextureAttachmentSupport(clientVersion, extensions); + } +} + +static bool SizedHalfFloatRGBRenderbufferSupport(const Version &clientVersion, + const Extensions &extensions) +{ + return (clientVersion >= Version(3, 0) || extensions.textureHalfFloat) && + extensions.colorBufferHalfFloat; +} + +static bool SizedHalfFloatRGBATextureAttachmentSupport(const Version &clientVersion, + const Extensions &extensions) +{ + // HALF_FLOAT + if (clientVersion >= Version(3, 0)) + { + return extensions.colorBufferFloat; + } + // HALF_FLOAT_OES + else + { + return SizedHalfFloatOESTextureAttachmentSupport(clientVersion, extensions); + } +} + +static bool SizedHalfFloatRGBARenderbufferSupport(const Version &clientVersion, + const Extensions &extensions) +{ + return (clientVersion >= Version(3, 0) || extensions.textureHalfFloat) && + (extensions.colorBufferFloat || extensions.colorBufferHalfFloat); +} + +// R32F, RG32F +static bool SizedFloatRGSupport(const Version &clientVersion, const Extensions &extensions) +{ + return clientVersion >= Version(3, 0) || + (extensions.textureStorage && extensions.textureFloat && extensions.textureRG); +} + +// RGB32F +static bool SizedFloatRGBSupport(const Version &clientVersion, const Extensions &extensions) +{ + return clientVersion >= Version(3, 0) || + (extensions.textureStorage && extensions.textureFloat) || extensions.colorBufferFloatRGB; +} + +// RGBA32F +static bool SizedFloatRGBASupport(const Version &clientVersion, const Extensions &extensions) +{ + return clientVersion >= Version(3, 0) || + (extensions.textureStorage && extensions.textureFloat) || + extensions.colorBufferFloatRGBA; +} + +static bool SizedFloatRGBARenderableSupport(const Version &clientVersion, + const Extensions &extensions) +{ + // This logic is the same for both Renderbuffers and TextureAttachment. + return extensions.colorBufferFloatRGBA || // ES2 + extensions.colorBufferFloat; // ES3 +} + +InternalFormat::InternalFormat() + : internalFormat(GL_NONE), + sized(false), + sizedInternalFormat(GL_NONE), + redBits(0), + greenBits(0), + blueBits(0), + luminanceBits(0), + alphaBits(0), + sharedBits(0), + depthBits(0), + stencilBits(0), + pixelBytes(0), + componentCount(0), + compressed(false), + compressedBlockWidth(0), + compressedBlockHeight(0), + compressedBlockDepth(0), + format(GL_NONE), + type(GL_NONE), + componentType(GL_NONE), + colorEncoding(GL_NONE), + textureSupport(NeverSupported), + filterSupport(NeverSupported), + textureAttachmentSupport(NeverSupported), + renderbufferSupport(NeverSupported) +{} + +InternalFormat::InternalFormat(const InternalFormat &other) = default; + +bool InternalFormat::isLUMA() const +{ + return ((redBits + greenBits + blueBits + depthBits + stencilBits) == 0 && + (luminanceBits + alphaBits) > 0); +} + +GLenum InternalFormat::getReadPixelsFormat() const +{ + return format; +} + +GLenum InternalFormat::getReadPixelsType(const Version &version) const +{ + switch (type) + { + case GL_HALF_FLOAT: + case GL_HALF_FLOAT_OES: + if (version < Version(3, 0)) + { + // The internal format may have a type of GL_HALF_FLOAT but when exposing this type + // as the IMPLEMENTATION_READ_TYPE, only HALF_FLOAT_OES is allowed by + // OES_texture_half_float. HALF_FLOAT becomes core in ES3 and is acceptable to use + // as an IMPLEMENTATION_READ_TYPE. + return GL_HALF_FLOAT_OES; + } + else + { + return GL_HALF_FLOAT; + } + + default: + return type; + } +} + +bool InternalFormat::isRequiredRenderbufferFormat(const Version &version) const +{ + // GLES 3.0.5 section 4.4.2.2: + // "Implementations are required to support the same internal formats for renderbuffers as the + // required formats for textures enumerated in section 3.8.3.1, with the exception of the color + // formats labelled "texture-only"." + if (!sized || compressed) + { + return false; + } + + // Luma formats. + if (isLUMA()) + { + return false; + } + + // Depth/stencil formats. + if (depthBits > 0 || stencilBits > 0) + { + // GLES 2.0.25 table 4.5. + // GLES 3.0.5 section 3.8.3.1. + // GLES 3.1 table 8.14. + + // Required formats in all versions. + switch (internalFormat) + { + case GL_DEPTH_COMPONENT16: + case GL_STENCIL_INDEX8: + // Note that STENCIL_INDEX8 is not mentioned in GLES 3.0.5 section 3.8.3.1, but it + // is in section 4.4.2.2. + return true; + default: + break; + } + if (version.major < 3) + { + return false; + } + // Required formats in GLES 3.0 and up. + switch (internalFormat) + { + case GL_DEPTH_COMPONENT32F: + case GL_DEPTH_COMPONENT24: + case GL_DEPTH32F_STENCIL8: + case GL_DEPTH24_STENCIL8: + return true; + default: + return false; + } + } + + // RGBA formats. + // GLES 2.0.25 table 4.5. + // GLES 3.0.5 section 3.8.3.1. + // GLES 3.1 table 8.13. + + // Required formats in all versions. + switch (internalFormat) + { + case GL_RGBA4: + case GL_RGB5_A1: + case GL_RGB565: + return true; + default: + break; + } + if (version.major < 3) + { + return false; + } + + if (format == GL_BGRA_EXT) + { + return false; + } + + switch (componentType) + { + case GL_SIGNED_NORMALIZED: + case GL_FLOAT: + return false; + case GL_UNSIGNED_INT: + case GL_INT: + // Integer RGB formats are not required renderbuffer formats. + if (alphaBits == 0 && blueBits != 0) + { + return false; + } + // All integer R and RG formats are required. + // Integer RGBA formats including RGB10_A2_UI are required. + return true; + case GL_UNSIGNED_NORMALIZED: + if (internalFormat == GL_SRGB8) + { + return false; + } + return true; + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return false; +#endif + } +} + +bool InternalFormat::isInt() const +{ + return componentType == GL_INT || componentType == GL_UNSIGNED_INT; +} + +Format::Format(GLenum internalFormat) : Format(GetSizedInternalFormatInfo(internalFormat)) {} + +Format::Format(const InternalFormat &internalFormat) : info(&internalFormat) {} + +Format::Format(GLenum internalFormat, GLenum type) + : info(&GetInternalFormatInfo(internalFormat, type)) +{} + +Format::Format(const Format &other) = default; +Format &Format::operator=(const Format &other) = default; + +bool Format::valid() const +{ + return info->internalFormat != GL_NONE; +} + +// static +bool Format::SameSized(const Format &a, const Format &b) +{ + return a.info->sizedInternalFormat == b.info->sizedInternalFormat; +} + +static GLenum EquivalentBlitInternalFormat(GLenum internalformat) +{ + // BlitFramebuffer works if the color channels are identically + // sized, even if there is a swizzle (for example, blitting from a + // multisampled RGBA8 renderbuffer to a BGRA8 texture). This could + // be expanded and/or autogenerated if that is found necessary. + if (internalformat == GL_BGRA8_EXT) + return GL_RGBA8; + return internalformat; +} + +// static +bool Format::EquivalentForBlit(const Format &a, const Format &b) +{ + return (EquivalentBlitInternalFormat(a.info->sizedInternalFormat) == + EquivalentBlitInternalFormat(b.info->sizedInternalFormat)); +} + +// static +Format Format::Invalid() +{ + static Format invalid(GL_NONE, GL_NONE); + return invalid; +} + +std::ostream &operator<<(std::ostream &os, const Format &fmt) +{ + // TODO(ynovikov): return string representation when available + return FmtHex(os, fmt.info->sizedInternalFormat); +} + +bool InternalFormat::operator==(const InternalFormat &other) const +{ + // We assume all internal formats are unique if they have the same internal format and type + return internalFormat == other.internalFormat && type == other.type; +} + +bool InternalFormat::operator!=(const InternalFormat &other) const +{ + return !(*this == other); +} + +void InsertFormatInfo(InternalFormatInfoMap *map, const InternalFormat &formatInfo) +{ + ASSERT(!formatInfo.sized || (*map).count(formatInfo.internalFormat) == 0); + ASSERT((*map)[formatInfo.internalFormat].count(formatInfo.type) == 0); + (*map)[formatInfo.internalFormat][formatInfo.type] = formatInfo; +} + +void AddRGBAFormat(InternalFormatInfoMap *map, + GLenum internalFormat, + bool sized, + GLuint red, + GLuint green, + GLuint blue, + GLuint alpha, + GLuint shared, + GLenum format, + GLenum type, + GLenum componentType, + bool srgb, + InternalFormat::SupportCheckFunction textureSupport, + InternalFormat::SupportCheckFunction filterSupport, + InternalFormat::SupportCheckFunction textureAttachmentSupport, + InternalFormat::SupportCheckFunction renderbufferSupport) +{ + InternalFormat formatInfo; + formatInfo.internalFormat = internalFormat; + formatInfo.sized = sized; + formatInfo.sizedInternalFormat = + sized ? internalFormat : GetSizedFormatInternal(internalFormat, type); + 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.filterSupport = filterSupport; + formatInfo.textureAttachmentSupport = textureAttachmentSupport; + formatInfo.renderbufferSupport = renderbufferSupport; + + InsertFormatInfo(map, formatInfo); +} + +static void AddLUMAFormat(InternalFormatInfoMap *map, + GLenum internalFormat, + bool sized, + GLuint luminance, + GLuint alpha, + GLenum format, + GLenum type, + GLenum componentType, + InternalFormat::SupportCheckFunction textureSupport, + InternalFormat::SupportCheckFunction filterSupport, + InternalFormat::SupportCheckFunction textureAttachmentSupport, + InternalFormat::SupportCheckFunction renderbufferSupport) +{ + InternalFormat formatInfo; + formatInfo.internalFormat = internalFormat; + formatInfo.sized = sized; + formatInfo.sizedInternalFormat = + sized ? internalFormat : GetSizedFormatInternal(internalFormat, type); + 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.filterSupport = filterSupport; + formatInfo.textureAttachmentSupport = textureAttachmentSupport; + formatInfo.renderbufferSupport = renderbufferSupport; + + InsertFormatInfo(map, formatInfo); +} + +void AddDepthStencilFormat(InternalFormatInfoMap *map, + GLenum internalFormat, + bool sized, + GLuint depthBits, + GLuint stencilBits, + GLuint unusedBits, + GLenum format, + GLenum type, + GLenum componentType, + InternalFormat::SupportCheckFunction textureSupport, + InternalFormat::SupportCheckFunction filterSupport, + InternalFormat::SupportCheckFunction textureAttachmentSupport, + InternalFormat::SupportCheckFunction renderbufferSupport) +{ + InternalFormat formatInfo; + formatInfo.internalFormat = internalFormat; + formatInfo.sized = sized; + formatInfo.sizedInternalFormat = + sized ? internalFormat : GetSizedFormatInternal(internalFormat, type); + 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.filterSupport = filterSupport; + formatInfo.textureAttachmentSupport = textureAttachmentSupport; + formatInfo.renderbufferSupport = renderbufferSupport; + + InsertFormatInfo(map, formatInfo); +} + +void AddCompressedFormat(InternalFormatInfoMap *map, + GLenum internalFormat, + GLuint compressedBlockWidth, + GLuint compressedBlockHeight, + GLuint compressedBlockDepth, + GLuint compressedBlockSize, + GLuint componentCount, + bool srgb, + InternalFormat::SupportCheckFunction textureSupport, + InternalFormat::SupportCheckFunction filterSupport, + InternalFormat::SupportCheckFunction textureAttachmentSupport, + InternalFormat::SupportCheckFunction renderbufferSupport) +{ + InternalFormat formatInfo; + formatInfo.internalFormat = internalFormat; + formatInfo.sized = true; + formatInfo.sizedInternalFormat = internalFormat; + formatInfo.compressedBlockWidth = compressedBlockWidth; + formatInfo.compressedBlockHeight = compressedBlockHeight; + formatInfo.compressedBlockDepth = compressedBlockDepth; + formatInfo.pixelBytes = compressedBlockSize / 8; + formatInfo.componentCount = componentCount; + formatInfo.format = internalFormat; + formatInfo.type = GL_UNSIGNED_BYTE; + formatInfo.componentType = GL_UNSIGNED_NORMALIZED; + formatInfo.colorEncoding = (srgb ? GL_SRGB : GL_LINEAR); + formatInfo.compressed = true; + formatInfo.textureSupport = textureSupport; + formatInfo.filterSupport = filterSupport; + formatInfo.textureAttachmentSupport = textureAttachmentSupport; + formatInfo.renderbufferSupport = renderbufferSupport; + + InsertFormatInfo(map, formatInfo); +} + +// Notes: +// 1. "Texture supported" includes all the means by which texture can be created, however, +// GL_EXT_texture_storage in ES2 is a special case, when only glTexStorage* is allowed. +// The assumption is that ES2 validation will not check textureSupport for sized formats. +// +// 2. Sized half float types are a combination of GL_HALF_FLOAT and GL_HALF_FLOAT_OES support, +// due to a limitation that only one type for sized formats is allowed. +// +// TODO(ynovikov): http://anglebug.com/2846 Verify support fields of BGRA, depth, stencil +// and compressed formats. Perform texturable check as part of filterable and attachment checks. +static InternalFormatInfoMap BuildInternalFormatInfoMap() +{ + InternalFormatInfoMap map; + + // From ES 3.0.1 spec, table 3.12 + map[GL_NONE][GL_NONE] = InternalFormat(); + + // clang-format off + + // | Internal format |sized| R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddRGBAFormat(&map, GL_R8, true, 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, SizedRGSupport, AlwaysSupported, SizedRGSupport, RequireESOrExt<3, 0, &Extensions::textureRG> ); + AddRGBAFormat(&map, GL_R8_SNORM, true, 8, 0, 0, 0, 0, GL_RED, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3, 0>, AlwaysSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RG8, true, 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, SizedRGSupport, AlwaysSupported, SizedRGSupport, RequireESOrExt<3, 0, &Extensions::textureRG> ); + AddRGBAFormat(&map, GL_RG8_SNORM, true, 8, 8, 0, 0, 0, GL_RG, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3, 0>, AlwaysSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RGB8, true, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureStorage>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorage>, RequireESOrExt<3, 0, &Extensions::rgb8rgba8> ); + AddRGBAFormat(&map, GL_RGB8_SNORM, true, 8, 8, 8, 0, 0, GL_RGB, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3, 0>, AlwaysSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RGB565, true, 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureStorage>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorage>, RequireES<2, 0> ); + AddRGBAFormat(&map, GL_RGBA4, true, 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureStorage>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorage>, RequireES<2, 0> ); + AddRGBAFormat(&map, GL_RGB5_A1, true, 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureStorage>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorage>, RequireES<2, 0> ); + AddRGBAFormat(&map, GL_RGBA8, true, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureStorage>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorage>, RequireESOrExt<3, 0, &Extensions::rgb8rgba8> ); + AddRGBAFormat(&map, GL_RGBA8_SNORM, true, 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3, 0>, AlwaysSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RGB10_A2, true, 10, 10, 10, 2, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, RequireES<3, 0>, AlwaysSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RGB10_A2UI, true, 10, 10, 10, 2, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_SRGB8, true, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireES<3, 0>, AlwaysSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_SRGB8_ALPHA8, true, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireES<3, 0>, AlwaysSupported, RequireES<3, 0>, RequireESOrExt<3, 0, &Extensions::sRGB> ); + AddRGBAFormat(&map, GL_R11F_G11F_B10F, true, 11, 11, 10, 0, 0, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_FLOAT, false, RequireES<3, 0>, AlwaysSupported, RequireExt<&Extensions::colorBufferFloat>, RequireExt<&Extensions::colorBufferFloat> ); + AddRGBAFormat(&map, GL_RGB9_E5, true, 9, 9, 9, 0, 5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_FLOAT, false, RequireES<3, 0>, AlwaysSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_R8I, true, 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_R8UI, true, 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_R16I, true, 16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_R16UI, true, 16, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_R32I, true, 32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_R32UI, true, 32, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RG8I, true, 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RG8UI, true, 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RG16I, true, 16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RG16UI, true, 16, 16, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RG32I, true, 32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RG32UI, true, 32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RGB8I, true, 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RGB8UI, true, 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RGB16I, true, 16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RGB16UI, true, 16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RGB32I, true, 32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RGB32UI, true, 32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RGBA8I, true, 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RGBA8UI, true, 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RGBA16I, true, 16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RGBA16UI, true, 16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RGBA32I, true, 32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + AddRGBAFormat(&map, GL_RGBA32UI, true, 32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> ); + + AddRGBAFormat(&map, GL_BGRA8_EXT, true, 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>); + AddRGBAFormat(&map, GL_BGRA4_ANGLEX, true, 4, 4, 4, 4, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>); + AddRGBAFormat(&map, GL_BGR5_A1_ANGLEX, true, 5, 5, 5, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>); + + // Special format that is used for D3D textures that are used within ANGLE via the + // EGL_ANGLE_d3d_texture_client_buffer extension. We don't allow uploading texture images with + // this format, but textures in this format can be created from D3D textures, and filtering them + // and rendering to them is allowed. + AddRGBAFormat(&map, GL_BGRA8_SRGB_ANGLEX, true, 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, NeverSupported, AlwaysSupported, AlwaysSupported, AlwaysSupported ); + + // Special format which is not really supported, so always false for all supports. + AddRGBAFormat(&map, GL_BGRX8_ANGLEX, true, 8, 8, 8, 0, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_BGR565_ANGLEX, true, 5, 6, 5, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported ); + + // Floating point formats + // | Internal format |sized| R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | + // It's not possible to have two entries per sized format. + // E.g. for GL_RG16F, one with GL_HALF_FLOAT type and the other with GL_HALF_FLOAT_OES type. + // So, GL_HALF_FLOAT type formats conditions are merged with GL_HALF_FLOAT_OES type conditions. + AddRGBAFormat(&map, GL_R16F, true, 16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, GL_FLOAT, false, SizedHalfFloatRGSupport, SizedHalfFloatFilterSupport, SizedHalfFloatRGTextureAttachmentSupport, SizedHalfFloatRGRenderbufferSupport ); + AddRGBAFormat(&map, GL_RG16F, true, 16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, GL_FLOAT, false, SizedHalfFloatRGSupport, SizedHalfFloatFilterSupport, SizedHalfFloatRGTextureAttachmentSupport, SizedHalfFloatRGRenderbufferSupport ); + AddRGBAFormat(&map, GL_RGB16F, true, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, SizedHalfFloatSupport, SizedHalfFloatFilterSupport, SizedHalfFloatRGBTextureAttachmentSupport, SizedHalfFloatRGBRenderbufferSupport ); + AddRGBAFormat(&map, GL_RGBA16F, true, 16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, GL_FLOAT, false, SizedHalfFloatSupport, SizedHalfFloatFilterSupport, SizedHalfFloatRGBATextureAttachmentSupport, SizedHalfFloatRGBARenderbufferSupport ); + AddRGBAFormat(&map, GL_R32F, true, 32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, SizedFloatRGSupport, RequireExt<&Extensions::textureFloatLinear>, RequireExt<&Extensions::colorBufferFloat>, RequireExt<&Extensions::colorBufferFloat>); + AddRGBAFormat(&map, GL_RG32F, true, 32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, SizedFloatRGSupport, RequireExt<&Extensions::textureFloatLinear>, RequireExt<&Extensions::colorBufferFloat>, RequireExt<&Extensions::colorBufferFloat>); + AddRGBAFormat(&map, GL_RGB32F, true, 32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, SizedFloatRGBSupport, RequireExt<&Extensions::textureFloatLinear>, RequireExt<&Extensions::colorBufferFloatRGB>, NeverSupported ); + AddRGBAFormat(&map, GL_RGBA32F, true, 32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, SizedFloatRGBASupport, RequireExt<&Extensions::textureFloatLinear>, SizedFloatRGBARenderableSupport, SizedFloatRGBARenderableSupport ); + + // ANGLE Depth stencil formats + // | Internal format |sized| D |S | X | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT16, true, 16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, RequireES<1, 0>, RequireESOrExtOrExt<3, 0, &Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, RequireES<1, 0>, RequireES<1, 0> ); + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT24, true, 24, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireES<3, 0>, RequireESOrExt<3, 0, &Extensions::depthTextureANGLE>, RequireES<3, 0>, RequireESOrExt<3, 0, &Extensions::depth24OES> ); + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT32F, true, 32, 0, 0, GL_DEPTH_COMPONENT, GL_FLOAT, GL_FLOAT, RequireES<3, 0>, RequireESOrExt<3, 0, &Extensions::depthTextureANGLE>, RequireES<3, 0>, RequireES<3, 0> ); + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT32_OES, true, 32, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireExtOrExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES, &Extensions::depth32>, AlwaysSupported, RequireExtOrExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES, &Extensions::depth32>, RequireExtOrExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES, &Extensions::depth32>); + AddDepthStencilFormat(&map, GL_DEPTH24_STENCIL8, true, 24, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_NORMALIZED, RequireESOrExt<3, 0, &Extensions::depthTextureANGLE>, AlwaysSupported, RequireESOrExtOrExt<3, 0, &Extensions::depthTextureANGLE, &Extensions::packedDepthStencil>, RequireESOrExtOrExt<3, 0, &Extensions::depthTextureANGLE, &Extensions::packedDepthStencil>); + AddDepthStencilFormat(&map, GL_DEPTH32F_STENCIL8, true, 32, 8, 24, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_FLOAT, RequireES<3, 0>, AlwaysSupported, RequireES<3, 0>, RequireES<3, 0> ); + // STENCIL_INDEX8 is special-cased, see around the bottom of the list. + + // Luminance alpha formats + // | Internal format |sized| L | A | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddLUMAFormat(&map, GL_ALPHA8_EXT, true, 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, AlwaysSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE8_EXT, true, 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, AlwaysSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE8_ALPHA8_EXT, true, 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, AlwaysSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_ALPHA16F_EXT, true, 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE16F_EXT, true, 16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE_ALPHA16F_EXT, true, 16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_ALPHA32F_EXT, true, 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE32F_EXT, true, 32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE_ALPHA32F_EXT, true, 32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported); + + // Compressed formats, From ES 3.0.1 spec, table 3.16 + // | Internal format |W |H |D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddCompressedFormat(&map, GL_COMPRESSED_R11_EAC, 4, 4, 1, 64, 1, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedEACR11UnsignedTexture>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SIGNED_R11_EAC, 4, 4, 1, 64, 1, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedEACR11SignedTexture>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RG11_EAC, 4, 4, 1, 128, 2, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedEACRG11UnsignedTexture>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SIGNED_RG11_EAC, 4, 4, 1, 128, 2, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedEACRG11SignedTexture>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB8_ETC2, 4, 4, 1, 64, 3, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedETC2RGB8Texture>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ETC2, 4, 4, 1, 64, 3, true, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedETC2sRGB8Texture>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, 4, 4, 1, 64, 3, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedETC2PunchthroughARGB8Texture>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, 4, 4, 1, 64, 3, true, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedETC2PunchthroughAsRGB8AlphaTexture>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA8_ETC2_EAC, 4, 4, 1, 128, 4, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedETC2RGBA8Texture>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, 4, 4, 1, 128, 4, true, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedETC2sRGB8Alpha8Texture>, AlwaysSupported, NeverSupported, NeverSupported); + + // From GL_EXT_texture_compression_dxt1 + // | Internal format |W |H |D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddCompressedFormat(&map, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::textureCompressionDXT1>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 4, 4, 1, 64, 4, false, RequireExt<&Extensions::textureCompressionDXT1>, AlwaysSupported, NeverSupported, NeverSupported); + + // From GL_ANGLE_texture_compression_dxt3 + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionDXT3>, AlwaysSupported, NeverSupported, NeverSupported); + + // From GL_ANGLE_texture_compression_dxt5 + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionDXT5>, AlwaysSupported, NeverSupported, NeverSupported); + + // From GL_OES_compressed_ETC1_RGB8_texture + AddCompressedFormat(&map, GL_ETC1_RGB8_OES, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::compressedETC1RGB8Texture>, AlwaysSupported, NeverSupported, NeverSupported); + + // From GL_EXT_texture_compression_s3tc_srgb + // | Internal format |W |H |D | BS |CC|SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, 4, 4, 1, 64, 3, true, RequireExt<&Extensions::textureCompressionS3TCsRGB>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, 4, 4, 1, 64, 4, true, RequireExt<&Extensions::textureCompressionS3TCsRGB>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, 4, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionS3TCsRGB>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, 4, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionS3TCsRGB>, AlwaysSupported, NeverSupported, NeverSupported); + + // From GL_KHR_texture_compression_astc_ldr and KHR_texture_compression_astc_hdr and GL_OES_texture_compression_astc + // | Internal format | W | H |D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x4_KHR, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x4_KHR, 5, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x5_KHR, 5, 5, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x5_KHR, 6, 5, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x6_KHR, 6, 6, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_8x5_KHR, 8, 5, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_8x6_KHR, 8, 6, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_8x8_KHR, 8, 8, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x5_KHR, 10, 5, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x6_KHR, 10, 6, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x8_KHR, 10, 8, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x10_KHR, 10, 10, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_12x10_KHR, 12, 10, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_12x12_KHR, 12, 12, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR, 4, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR, 5, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR, 5, 5, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR, 6, 5, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR, 6, 6, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR, 8, 5, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR, 8, 6, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR, 8, 8, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR, 10, 5, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR, 10, 6, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR, 10, 8, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR, 10, 10, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR, 12, 10, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR, 12, 12, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported); + + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_3x3x3_OES, 3, 3, 3, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x3x3_OES, 4, 3, 3, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x4x3_OES, 4, 4, 3, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x4x4_OES, 4, 4, 4, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x4x4_OES, 5, 4, 4, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x5x4_OES, 5, 5, 4, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x5x5_OES, 5, 5, 5, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x5x5_OES, 6, 5, 5, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x6x5_OES, 6, 6, 5, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x6x6_OES, 6, 6, 6, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES, 3, 3, 3, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES, 4, 3, 3, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES, 4, 4, 3, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES, 4, 4, 4, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES, 5, 4, 4, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES, 5, 5, 4, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES, 5, 5, 5, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES, 6, 5, 5, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES, 6, 6, 5, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES, 6, 6, 6, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported); + + // From EXT_texture_compression_bptc + // | Internal format | W | H |D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_BPTC_UNORM_EXT, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionBPTC>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT, 4, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionBPTC>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionBPTC>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionBPTC>, AlwaysSupported, NeverSupported, NeverSupported); + + // 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 |sized|D |S |X | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddDepthStencilFormat(&map, GL_STENCIL_INDEX8, true, 0, 8, 0, GL_STENCIL, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<1, 0>, NeverSupported, RequireES<1, 0>, RequireES<1, 0>); + + // From GL_ANGLE_lossy_etc_decode + // | Internal format |W |H |D |BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddCompressedFormat(&map, GL_ETC1_RGB8_LOSSY_DECODE_ANGLE, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::lossyETCDecode>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::lossyETCDecode>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 1, 64, 3, true, RequireExt<&Extensions::lossyETCDecode>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::lossyETCDecode>, AlwaysSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 1, 64, 3, true, RequireExt<&Extensions::lossyETCDecode>, AlwaysSupported, NeverSupported, NeverSupported); + + // From GL_EXT_texture_norm16 + // | Internal format |sized| R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddRGBAFormat(&map, GL_R16_EXT, true, 16, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, RequireExt<&Extensions::textureNorm16>, RequireExt<&Extensions::textureNorm16>); + AddRGBAFormat(&map, GL_R16_SNORM_EXT, true, 16, 0, 0, 0, 0, GL_RED, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RG16_EXT, true, 16, 16, 0, 0, 0, GL_RG, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, RequireExt<&Extensions::textureNorm16>, RequireExt<&Extensions::textureNorm16>); + AddRGBAFormat(&map, GL_RG16_SNORM_EXT, true, 16, 16, 0, 0, 0, GL_RG, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RGB16_EXT, true, 16, 16, 16, 0, 0, GL_RGB, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RGB16_SNORM_EXT, true, 16, 16, 16, 0, 0, GL_RGB, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, NeverSupported, NeverSupported ); + AddRGBAFormat(&map, GL_RGBA16_EXT, true, 16, 16, 16, 16, 0, GL_RGBA, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, RequireExt<&Extensions::textureNorm16>, RequireExt<&Extensions::textureNorm16>); + AddRGBAFormat(&map, GL_RGBA16_SNORM_EXT, true, 16, 16, 16, 16, 0, GL_RGBA, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, NeverSupported, NeverSupported ); + + // Unsized formats + // | Internal format |sized | R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddRGBAFormat(&map, GL_RED, false, 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureRG>, AlwaysSupported, RequireExt<&Extensions::textureRG>, NeverSupported); + AddRGBAFormat(&map, GL_RED, false, 8, 0, 0, 0, 0, GL_RED, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG, false, 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureRG>, AlwaysSupported, RequireExt<&Extensions::textureRG>, NeverSupported); + AddRGBAFormat(&map, GL_RG, false, 8, 8, 0, 0, 0, GL_RG, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB, false, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireES<2, 0>, NeverSupported); + AddRGBAFormat(&map, GL_RGB, false, 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireES<2, 0>, NeverSupported); + AddRGBAFormat(&map, GL_RGB, false, 8, 8, 8, 0, 0, GL_RGB, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA, false, 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireES<2, 0>, NeverSupported); + AddRGBAFormat(&map, GL_RGBA, false, 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireES<2, 0>, NeverSupported); + AddRGBAFormat(&map, GL_RGBA, false, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireES<2, 0>, NeverSupported); + AddRGBAFormat(&map, GL_RGBA, false, 10, 10, 10, 2, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA, false, 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_SRGB, false, 8, 8, 8, 0, 0, GL_SRGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireExt<&Extensions::sRGB>, AlwaysSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_SRGB_ALPHA_EXT, false, 8, 8, 8, 8, 0, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireExt<&Extensions::sRGB>, AlwaysSupported, RequireExt<&Extensions::sRGB>, NeverSupported); + AddRGBAFormat(&map, GL_BGRA_EXT, false, 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888>, NeverSupported); + + // Unsized integer formats + // |Internal format |sized | R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddRGBAFormat(&map, GL_RED_INTEGER, false, 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RED_INTEGER, false, 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RED_INTEGER, false, 16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RED_INTEGER, false, 16, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RED_INTEGER, false, 32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RED_INTEGER, false, 32, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG_INTEGER, false, 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG_INTEGER, false, 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG_INTEGER, false, 16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG_INTEGER, false, 16, 16, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG_INTEGER, false, 32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG_INTEGER, false, 32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB_INTEGER, false, 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB_INTEGER, false, 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB_INTEGER, false, 16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB_INTEGER, false, 16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB_INTEGER, false, 32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB_INTEGER, false, 32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 10, 10, 10, 2, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported); + + // Unsized floating point formats + // |Internal format |sized | R | G | B | A |S | Format | Type | Comp | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddRGBAFormat(&map, GL_RED, false, 16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG, false, 16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB, false, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA, false, 16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RED, false, 16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT_OES, GL_FLOAT, false, RequireExtAndExt<&Extensions::textureHalfFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG, false, 16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT_OES, GL_FLOAT, false, RequireExtAndExt<&Extensions::textureHalfFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB, false, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT_OES, GL_FLOAT, false, RequireExt<&Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, RequireExtAndExt<&Extensions::colorBufferHalfFloat, &Extensions::webglCompatibility>, NeverSupported); + AddRGBAFormat(&map, GL_RGBA, false, 16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT_OES, GL_FLOAT, false, RequireExt<&Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, RequireExt<&Extensions::colorBufferHalfFloat>, NeverSupported); + AddRGBAFormat(&map, GL_RED, false, 32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, RequireExtAndExt<&Extensions::textureFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG, false, 32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, RequireExtAndExt<&Extensions::textureFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB, false, 32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, RequireExt<&Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB, false, 9, 9, 9, 0, 5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB, false, 11, 11, 10, 0, 0, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA, false, 32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, RequireExt<&Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported); + + // Unsized luminance alpha formats + // | Internal format |sized | L | A | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddLUMAFormat(&map, GL_ALPHA, false, 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE, false, 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE_ALPHA, false, 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_ALPHA, false, 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExt<&Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE, false, 16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExt<&Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE_ALPHA, false, 16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExt<&Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_ALPHA, false, 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, RequireExt<&Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE, false, 32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, RequireExt<&Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE_ALPHA, false, 32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, RequireExt<&Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported); + + // Unsized depth stencil formats + // | Internal format |sized | D |S | X | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer | + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT, false, 16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, RequireES<1, 0>, AlwaysSupported, RequireES<1, 0>, RequireES<1, 0> ); + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT, false, 24, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireES<1, 0>, AlwaysSupported, RequireES<1, 0>, RequireES<1, 0> ); + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT, false, 32, 0, 0, GL_DEPTH_COMPONENT, GL_FLOAT, GL_FLOAT, RequireES<1, 0>, AlwaysSupported, RequireES<1, 0>, RequireES<1, 0> ); + AddDepthStencilFormat(&map, GL_DEPTH_STENCIL, false, 24, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_NORMALIZED, RequireESOrExt<3, 0, &Extensions::packedDepthStencil>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::packedDepthStencil>, RequireESOrExt<3, 0, &Extensions::packedDepthStencil>); + AddDepthStencilFormat(&map, GL_DEPTH_STENCIL, false, 32, 8, 24, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_FLOAT, RequireESOrExt<3, 0, &Extensions::packedDepthStencil>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::packedDepthStencil>, RequireESOrExt<3, 0, &Extensions::packedDepthStencil>); + AddDepthStencilFormat(&map, GL_STENCIL, false, 0, 8, 0, GL_STENCIL, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<1, 0>, NeverSupported , RequireES<1, 0>, RequireES<1, 0> ); + // clang-format on + + return map; +} + +static const InternalFormatInfoMap &GetInternalFormatMap() +{ + static const InternalFormatInfoMap formatMap = BuildInternalFormatInfoMap(); + return formatMap; +} + +static FormatSet BuildAllSizedInternalFormatSet() +{ + FormatSet result; + + for (const auto &internalFormat : GetInternalFormatMap()) + { + for (const auto &type : internalFormat.second) + { + if (type.second.sized) + { + // TODO(jmadill): Fix this hack. + if (internalFormat.first == GL_BGR565_ANGLEX) + continue; + + result.insert(internalFormat.first); + } + } + } + + return result; +} + +uint32_t GetPackedTypeInfo(GLenum type) +{ + switch (type) + { + case GL_UNSIGNED_BYTE: + case GL_BYTE: + { + static constexpr uint32_t kPacked = PackTypeInfo(1, false); + return kPacked; + } + case GL_UNSIGNED_SHORT: + case GL_SHORT: + case GL_HALF_FLOAT: + case GL_HALF_FLOAT_OES: + { + static constexpr uint32_t kPacked = PackTypeInfo(2, false); + return kPacked; + } + case GL_UNSIGNED_INT: + case GL_INT: + case GL_FLOAT: + { + static constexpr uint32_t kPacked = PackTypeInfo(4, false); + return kPacked; + } + 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 constexpr uint32_t kPacked = PackTypeInfo(2, true); + return kPacked; + } + 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 constexpr uint32_t kPacked = PackTypeInfo(4, true); + return kPacked; + } + case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: + { + static constexpr uint32_t kPacked = PackTypeInfo(8, true); + return kPacked; + } + default: + { + return 0; + } + } +} + +const InternalFormat &GetSizedInternalFormatInfo(GLenum internalFormat) +{ + static const InternalFormat defaultInternalFormat; + const InternalFormatInfoMap &formatMap = GetInternalFormatMap(); + auto iter = formatMap.find(internalFormat); + + // Sized internal formats only have one type per entry + if (iter == formatMap.end() || iter->second.size() != 1) + { + return defaultInternalFormat; + } + + const InternalFormat &internalFormatInfo = iter->second.begin()->second; + if (!internalFormatInfo.sized) + { + return defaultInternalFormat; + } + + return internalFormatInfo; +} + +const InternalFormat &GetInternalFormatInfo(GLenum internalFormat, GLenum type) +{ + static const InternalFormat defaultInternalFormat; + const InternalFormatInfoMap &formatMap = GetInternalFormatMap(); + + auto internalFormatIter = formatMap.find(internalFormat); + if (internalFormatIter == formatMap.end()) + { + return defaultInternalFormat; + } + + // If the internal format is sized, simply return it without the type check. + if (internalFormatIter->second.size() == 1 && internalFormatIter->second.begin()->second.sized) + { + return internalFormatIter->second.begin()->second; + } + + auto typeIter = internalFormatIter->second.find(type); + if (typeIter == internalFormatIter->second.end()) + { + return defaultInternalFormat; + } + + return typeIter->second; +} + +GLuint InternalFormat::computePixelBytes(GLenum formatType) const +{ + const auto &typeInfo = GetTypeInfo(formatType); + GLuint components = typeInfo.specialInterpretation ? 1u : componentCount; + return components * typeInfo.bytes; +} + +bool InternalFormat::computeRowPitch(GLenum formatType, + GLsizei width, + GLint alignment, + GLint rowLength, + GLuint *resultOut) const +{ + // Compressed images do not use pack/unpack parameters. + if (compressed) + { + ASSERT(rowLength == 0); + return computeCompressedImageSize(Extents(width, 1, 1), resultOut); + } + + CheckedNumeric<GLuint> checkedWidth(rowLength > 0 ? rowLength : width); + CheckedNumeric<GLuint> checkedRowBytes = checkedWidth * computePixelBytes(formatType); + + ASSERT(alignment > 0 && isPow2(alignment)); + CheckedNumeric<GLuint> checkedAlignment(alignment); + auto aligned = rx::roundUp(checkedRowBytes, checkedAlignment); + return CheckedMathResult(aligned, resultOut); +} + +bool InternalFormat::computeDepthPitch(GLsizei height, + GLint imageHeight, + GLuint rowPitch, + GLuint *resultOut) const +{ + CheckedNumeric<GLuint> pixelsHeight(imageHeight > 0 ? static_cast<GLuint>(imageHeight) + : static_cast<GLuint>(height)); + + CheckedNumeric<GLuint> rowCount; + if (compressed) + { + CheckedNumeric<GLuint> checkedBlockHeight(compressedBlockHeight); + rowCount = (pixelsHeight + checkedBlockHeight - 1u) / checkedBlockHeight; + } + else + { + rowCount = pixelsHeight; + } + + CheckedNumeric<GLuint> checkedRowPitch(rowPitch); + + return CheckedMathResult(checkedRowPitch * rowCount, resultOut); +} + +bool InternalFormat::computeDepthPitch(GLenum formatType, + GLsizei width, + GLsizei height, + GLint alignment, + GLint rowLength, + GLint imageHeight, + GLuint *resultOut) const +{ + GLuint rowPitch = 0; + if (!computeRowPitch(formatType, width, alignment, rowLength, &rowPitch)) + { + return false; + } + return computeDepthPitch(height, imageHeight, rowPitch, resultOut); +} + +bool InternalFormat::computeCompressedImageSize(const Extents &size, GLuint *resultOut) const +{ + CheckedNumeric<GLuint> checkedWidth(size.width); + CheckedNumeric<GLuint> checkedHeight(size.height); + CheckedNumeric<GLuint> checkedDepth(size.depth); + CheckedNumeric<GLuint> checkedBlockWidth(compressedBlockWidth); + CheckedNumeric<GLuint> checkedBlockHeight(compressedBlockHeight); + + ASSERT(compressed); + auto numBlocksWide = (checkedWidth + checkedBlockWidth - 1u) / checkedBlockWidth; + auto numBlocksHigh = (checkedHeight + checkedBlockHeight - 1u) / checkedBlockHeight; + auto bytes = numBlocksWide * numBlocksHigh * pixelBytes * checkedDepth; + return CheckedMathResult(bytes, resultOut); +} + +bool InternalFormat::computeSkipBytes(GLenum formatType, + GLuint rowPitch, + GLuint depthPitch, + const PixelStoreStateBase &state, + bool is3D, + GLuint *resultOut) const +{ + CheckedNumeric<GLuint> checkedRowPitch(rowPitch); + CheckedNumeric<GLuint> checkedDepthPitch(depthPitch); + CheckedNumeric<GLuint> checkedSkipImages(static_cast<GLuint>(state.skipImages)); + CheckedNumeric<GLuint> checkedSkipRows(static_cast<GLuint>(state.skipRows)); + CheckedNumeric<GLuint> checkedSkipPixels(static_cast<GLuint>(state.skipPixels)); + CheckedNumeric<GLuint> checkedPixelBytes(computePixelBytes(formatType)); + auto checkedSkipImagesBytes = checkedSkipImages * checkedDepthPitch; + if (!is3D) + { + checkedSkipImagesBytes = 0; + } + auto skipBytes = checkedSkipImagesBytes + checkedSkipRows * checkedRowPitch + + checkedSkipPixels * checkedPixelBytes; + return CheckedMathResult(skipBytes, resultOut); +} + +bool InternalFormat::computePackUnpackEndByte(GLenum formatType, + const Extents &size, + const PixelStoreStateBase &state, + bool is3D, + GLuint *resultOut) const +{ + GLuint rowPitch = 0; + if (!computeRowPitch(formatType, size.width, state.alignment, state.rowLength, &rowPitch)) + { + return false; + } + + GLuint depthPitch = 0; + if (is3D && !computeDepthPitch(size.height, state.imageHeight, rowPitch, &depthPitch)) + { + return false; + } + + CheckedNumeric<GLuint> checkedCopyBytes(0); + if (compressed) + { + GLuint copyBytes = 0; + if (!computeCompressedImageSize(size, ©Bytes)) + { + return false; + } + checkedCopyBytes = copyBytes; + } + else if (size.height != 0 && (!is3D || size.depth != 0)) + { + CheckedNumeric<GLuint> bytes = computePixelBytes(formatType); + checkedCopyBytes += size.width * bytes; + + CheckedNumeric<GLuint> heightMinusOne = size.height - 1; + checkedCopyBytes += heightMinusOne * rowPitch; + + if (is3D) + { + CheckedNumeric<GLuint> depthMinusOne = size.depth - 1; + checkedCopyBytes += depthMinusOne * depthPitch; + } + } + + GLuint skipBytes = 0; + if (!computeSkipBytes(formatType, rowPitch, depthPitch, state, is3D, &skipBytes)) + { + return false; + } + + CheckedNumeric<GLuint> endByte = checkedCopyBytes + CheckedNumeric<GLuint>(skipBytes); + + return CheckedMathResult(endByte, resultOut); +} + +GLenum GetUnsizedFormat(GLenum internalFormat) +{ + auto sizedFormatInfo = GetSizedInternalFormatInfo(internalFormat); + if (sizedFormatInfo.internalFormat != GL_NONE) + { + return sizedFormatInfo.format; + } + + return internalFormat; +} + +const FormatSet &GetAllSizedInternalFormats() +{ + static FormatSet formatSet = BuildAllSizedInternalFormatSet(); + return formatSet; +} + +AttributeType GetAttributeType(GLenum enumValue) +{ + switch (enumValue) + { + case GL_FLOAT: + return ATTRIBUTE_FLOAT; + case GL_FLOAT_VEC2: + return ATTRIBUTE_VEC2; + case GL_FLOAT_VEC3: + return ATTRIBUTE_VEC3; + case GL_FLOAT_VEC4: + return ATTRIBUTE_VEC4; + case GL_INT: + return ATTRIBUTE_INT; + case GL_INT_VEC2: + return ATTRIBUTE_IVEC2; + case GL_INT_VEC3: + return ATTRIBUTE_IVEC3; + case GL_INT_VEC4: + return ATTRIBUTE_IVEC4; + case GL_UNSIGNED_INT: + return ATTRIBUTE_UINT; + case GL_UNSIGNED_INT_VEC2: + return ATTRIBUTE_UVEC2; + case GL_UNSIGNED_INT_VEC3: + return ATTRIBUTE_UVEC3; + case GL_UNSIGNED_INT_VEC4: + return ATTRIBUTE_UVEC4; + case GL_FLOAT_MAT2: + return ATTRIBUTE_MAT2; + case GL_FLOAT_MAT3: + return ATTRIBUTE_MAT3; + case GL_FLOAT_MAT4: + return ATTRIBUTE_MAT4; + case GL_FLOAT_MAT2x3: + return ATTRIBUTE_MAT2x3; + case GL_FLOAT_MAT2x4: + return ATTRIBUTE_MAT2x4; + case GL_FLOAT_MAT3x2: + return ATTRIBUTE_MAT3x2; + case GL_FLOAT_MAT3x4: + return ATTRIBUTE_MAT3x4; + case GL_FLOAT_MAT4x2: + return ATTRIBUTE_MAT4x2; + case GL_FLOAT_MAT4x3: + return ATTRIBUTE_MAT4x3; + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return ATTRIBUTE_FLOAT; +#endif + } +} + +angle::FormatID GetVertexFormatID(VertexAttribType type, + GLboolean normalized, + GLuint components, + bool pureInteger) +{ + switch (type) + { + case VertexAttribType::Byte: + switch (components) + { + case 1: + if (pureInteger) + return angle::FormatID::R8_SINT; + if (normalized) + return angle::FormatID::R8_SNORM; + return angle::FormatID::R8_SSCALED; + case 2: + if (pureInteger) + return angle::FormatID::R8G8_SINT; + if (normalized) + return angle::FormatID::R8G8_SNORM; + return angle::FormatID::R8G8_SSCALED; + case 3: + if (pureInteger) + return angle::FormatID::R8G8B8_SINT; + if (normalized) + return angle::FormatID::R8G8B8_SNORM; + return angle::FormatID::R8G8B8_SSCALED; + case 4: + if (pureInteger) + return angle::FormatID::R8G8B8A8_SINT; + if (normalized) + return angle::FormatID::R8G8B8A8_SNORM; + return angle::FormatID::R8G8B8A8_SSCALED; + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return angle::FormatID::NONE; +#endif + } + case VertexAttribType::UnsignedByte: + switch (components) + { + case 1: + if (pureInteger) + return angle::FormatID::R8_UINT; + if (normalized) + return angle::FormatID::R8_UNORM; + return angle::FormatID::R8_USCALED; + case 2: + if (pureInteger) + return angle::FormatID::R8G8_UINT; + if (normalized) + return angle::FormatID::R8G8_UNORM; + return angle::FormatID::R8G8_USCALED; + case 3: + if (pureInteger) + return angle::FormatID::R8G8B8_UINT; + if (normalized) + return angle::FormatID::R8G8B8_UNORM; + return angle::FormatID::R8G8B8_USCALED; + case 4: + if (pureInteger) + return angle::FormatID::R8G8B8A8_UINT; + if (normalized) + return angle::FormatID::R8G8B8A8_UNORM; + return angle::FormatID::R8G8B8A8_USCALED; + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return angle::FormatID::NONE; +#endif + } + case VertexAttribType::Short: + switch (components) + { + case 1: + if (pureInteger) + return angle::FormatID::R16_SINT; + if (normalized) + return angle::FormatID::R16_SNORM; + return angle::FormatID::R16_SSCALED; + case 2: + if (pureInteger) + return angle::FormatID::R16G16_SINT; + if (normalized) + return angle::FormatID::R16G16_SNORM; + return angle::FormatID::R16G16_SSCALED; + case 3: + if (pureInteger) + return angle::FormatID::R16G16B16_SINT; + if (normalized) + return angle::FormatID::R16G16B16_SNORM; + return angle::FormatID::R16G16B16_SSCALED; + case 4: + if (pureInteger) + return angle::FormatID::R16G16B16A16_SINT; + if (normalized) + return angle::FormatID::R16G16B16A16_SNORM; + return angle::FormatID::R16G16B16A16_SSCALED; + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return angle::FormatID::NONE; +#endif + } + case VertexAttribType::UnsignedShort: + switch (components) + { + case 1: + if (pureInteger) + return angle::FormatID::R16_UINT; + if (normalized) + return angle::FormatID::R16_UNORM; + return angle::FormatID::R16_USCALED; + case 2: + if (pureInteger) + return angle::FormatID::R16G16_UINT; + if (normalized) + return angle::FormatID::R16G16_UNORM; + return angle::FormatID::R16G16_USCALED; + case 3: + if (pureInteger) + return angle::FormatID::R16G16B16_UINT; + if (normalized) + return angle::FormatID::R16G16B16_UNORM; + return angle::FormatID::R16G16B16_USCALED; + case 4: + if (pureInteger) + return angle::FormatID::R16G16B16A16_UINT; + if (normalized) + return angle::FormatID::R16G16B16A16_UNORM; + return angle::FormatID::R16G16B16A16_USCALED; + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return angle::FormatID::NONE; +#endif + } + case VertexAttribType::Int: + switch (components) + { + case 1: + if (pureInteger) + return angle::FormatID::R32_SINT; + if (normalized) + return angle::FormatID::R32_SNORM; + return angle::FormatID::R32_SSCALED; + case 2: + if (pureInteger) + return angle::FormatID::R32G32_SINT; + if (normalized) + return angle::FormatID::R32G32_SNORM; + return angle::FormatID::R32G32_SSCALED; + case 3: + if (pureInteger) + return angle::FormatID::R32G32B32_SINT; + if (normalized) + return angle::FormatID::R32G32B32_SNORM; + return angle::FormatID::R32G32B32_SSCALED; + case 4: + if (pureInteger) + return angle::FormatID::R32G32B32A32_SINT; + if (normalized) + return angle::FormatID::R32G32B32A32_SNORM; + return angle::FormatID::R32G32B32A32_SSCALED; + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return angle::FormatID::NONE; +#endif + } + case VertexAttribType::UnsignedInt: + switch (components) + { + case 1: + if (pureInteger) + return angle::FormatID::R32_UINT; + if (normalized) + return angle::FormatID::R32_UNORM; + return angle::FormatID::R32_USCALED; + case 2: + if (pureInteger) + return angle::FormatID::R32G32_UINT; + if (normalized) + return angle::FormatID::R32G32_UNORM; + return angle::FormatID::R32G32_USCALED; + case 3: + if (pureInteger) + return angle::FormatID::R32G32B32_UINT; + if (normalized) + return angle::FormatID::R32G32B32_UNORM; + return angle::FormatID::R32G32B32_USCALED; + case 4: + if (pureInteger) + return angle::FormatID::R32G32B32A32_UINT; + if (normalized) + return angle::FormatID::R32G32B32A32_UNORM; + return angle::FormatID::R32G32B32A32_USCALED; + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return angle::FormatID::NONE; +#endif + } + case VertexAttribType::Float: + switch (components) + { + case 1: + return angle::FormatID::R32_FLOAT; + case 2: + return angle::FormatID::R32G32_FLOAT; + case 3: + return angle::FormatID::R32G32B32_FLOAT; + case 4: + return angle::FormatID::R32G32B32A32_FLOAT; + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return angle::FormatID::NONE; +#endif + } + case VertexAttribType::HalfFloat: + switch (components) + { + case 1: + return angle::FormatID::R16_FLOAT; + case 2: + return angle::FormatID::R16G16_FLOAT; + case 3: + return angle::FormatID::R16G16B16_FLOAT; + case 4: + return angle::FormatID::R16G16B16A16_FLOAT; + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return angle::FormatID::NONE; +#endif + } + case VertexAttribType::Fixed: + switch (components) + { + case 1: + return angle::FormatID::R32_FIXED; + case 2: + return angle::FormatID::R32G32_FIXED; + case 3: + return angle::FormatID::R32G32B32_FIXED; + case 4: + return angle::FormatID::R32G32B32A32_FIXED; + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return angle::FormatID::NONE; +#endif + } + case VertexAttribType::Int2101010: + if (pureInteger) + return angle::FormatID::R10G10B10A2_SINT; + if (normalized) + return angle::FormatID::R10G10B10A2_SNORM; + return angle::FormatID::R10G10B10A2_SSCALED; + case VertexAttribType::UnsignedInt2101010: + if (pureInteger) + return angle::FormatID::R10G10B10A2_UINT; + if (normalized) + return angle::FormatID::R10G10B10A2_UNORM; + return angle::FormatID::R10G10B10A2_USCALED; + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return angle::FormatID::NONE; +#endif + } +} + +angle::FormatID GetVertexFormatID(const VertexAttribute &attrib, VertexAttribType currentValueType) +{ + if (!attrib.enabled) + { + return GetCurrentValueFormatID(currentValueType); + } + return attrib.format->id; +} + +angle::FormatID GetCurrentValueFormatID(VertexAttribType currentValueType) +{ + switch (currentValueType) + { + case VertexAttribType::Float: + return angle::FormatID::R32G32B32A32_FLOAT; + case VertexAttribType::Int: + return angle::FormatID::R32G32B32A32_SINT; + case VertexAttribType::UnsignedInt: + return angle::FormatID::R32G32B32A32_UINT; + default: + UNREACHABLE(); + return angle::FormatID::NONE; + } +} + +const VertexFormat &GetVertexFormatFromID(angle::FormatID vertexFormatID) +{ + switch (vertexFormatID) + { + case angle::FormatID::R8_SSCALED: + { + static const VertexFormat format(GL_BYTE, GL_FALSE, 1, false); + return format; + } + case angle::FormatID::R8_SNORM: + { + static const VertexFormat format(GL_BYTE, GL_TRUE, 1, false); + return format; + } + case angle::FormatID::R8G8_SSCALED: + { + static const VertexFormat format(GL_BYTE, GL_FALSE, 2, false); + return format; + } + case angle::FormatID::R8G8_SNORM: + { + static const VertexFormat format(GL_BYTE, GL_TRUE, 2, false); + return format; + } + case angle::FormatID::R8G8B8_SSCALED: + { + static const VertexFormat format(GL_BYTE, GL_FALSE, 3, false); + return format; + } + case angle::FormatID::R8G8B8_SNORM: + { + static const VertexFormat format(GL_BYTE, GL_TRUE, 3, false); + return format; + } + case angle::FormatID::R8G8B8A8_SSCALED: + { + static const VertexFormat format(GL_BYTE, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::R8G8B8A8_SNORM: + { + static const VertexFormat format(GL_BYTE, GL_TRUE, 4, false); + return format; + } + case angle::FormatID::R8_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 1, false); + return format; + } + case angle::FormatID::R8_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 1, false); + return format; + } + case angle::FormatID::R8G8_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 2, false); + return format; + } + case angle::FormatID::R8G8_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 2, false); + return format; + } + case angle::FormatID::R8G8B8_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 3, false); + return format; + } + case angle::FormatID::R8G8B8_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 3, false); + return format; + } + case angle::FormatID::R8G8B8A8_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::R8G8B8A8_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 4, false); + return format; + } + case angle::FormatID::R16_SSCALED: + { + static const VertexFormat format(GL_SHORT, GL_FALSE, 1, false); + return format; + } + case angle::FormatID::R16_SNORM: + { + static const VertexFormat format(GL_SHORT, GL_TRUE, 1, false); + return format; + } + case angle::FormatID::R16G16_SSCALED: + { + static const VertexFormat format(GL_SHORT, GL_FALSE, 2, false); + return format; + } + case angle::FormatID::R16G16_SNORM: + { + static const VertexFormat format(GL_SHORT, GL_TRUE, 2, false); + return format; + } + case angle::FormatID::R16G16B16_SSCALED: + { + static const VertexFormat format(GL_SHORT, GL_FALSE, 3, false); + return format; + } + case angle::FormatID::R16G16B16_SNORM: + { + static const VertexFormat format(GL_SHORT, GL_TRUE, 3, false); + return format; + } + case angle::FormatID::R16G16B16A16_SSCALED: + { + static const VertexFormat format(GL_SHORT, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::R16G16B16A16_SNORM: + { + static const VertexFormat format(GL_SHORT, GL_TRUE, 4, false); + return format; + } + case angle::FormatID::R16_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 1, false); + return format; + } + case angle::FormatID::R16_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 1, false); + return format; + } + case angle::FormatID::R16G16_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 2, false); + return format; + } + case angle::FormatID::R16G16_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 2, false); + return format; + } + case angle::FormatID::R16G16B16_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 3, false); + return format; + } + case angle::FormatID::R16G16B16_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 3, false); + return format; + } + case angle::FormatID::R16G16B16A16_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::R16G16B16A16_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 4, false); + return format; + } + case angle::FormatID::R32_SSCALED: + { + static const VertexFormat format(GL_INT, GL_FALSE, 1, false); + return format; + } + case angle::FormatID::R32_SNORM: + { + static const VertexFormat format(GL_INT, GL_TRUE, 1, false); + return format; + } + case angle::FormatID::R32G32_SSCALED: + { + static const VertexFormat format(GL_INT, GL_FALSE, 2, false); + return format; + } + case angle::FormatID::R32G32_SNORM: + { + static const VertexFormat format(GL_INT, GL_TRUE, 2, false); + return format; + } + case angle::FormatID::R32G32B32_SSCALED: + { + static const VertexFormat format(GL_INT, GL_FALSE, 3, false); + return format; + } + case angle::FormatID::R32G32B32_SNORM: + { + static const VertexFormat format(GL_INT, GL_TRUE, 3, false); + return format; + } + case angle::FormatID::R32G32B32A32_SSCALED: + { + static const VertexFormat format(GL_INT, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::R32G32B32A32_SNORM: + { + static const VertexFormat format(GL_INT, GL_TRUE, 4, false); + return format; + } + case angle::FormatID::R32_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 1, false); + return format; + } + case angle::FormatID::R32_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 1, false); + return format; + } + case angle::FormatID::R32G32_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 2, false); + return format; + } + case angle::FormatID::R32G32_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 2, false); + return format; + } + case angle::FormatID::R32G32B32_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 3, false); + return format; + } + case angle::FormatID::R32G32B32_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 3, false); + return format; + } + case angle::FormatID::R32G32B32A32_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::R32G32B32A32_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 4, false); + return format; + } + case angle::FormatID::R8_SINT: + { + static const VertexFormat format(GL_BYTE, GL_FALSE, 1, true); + return format; + } + case angle::FormatID::R8G8_SINT: + { + static const VertexFormat format(GL_BYTE, GL_FALSE, 2, true); + return format; + } + case angle::FormatID::R8G8B8_SINT: + { + static const VertexFormat format(GL_BYTE, GL_FALSE, 3, true); + return format; + } + case angle::FormatID::R8G8B8A8_SINT: + { + static const VertexFormat format(GL_BYTE, GL_FALSE, 4, true); + return format; + } + case angle::FormatID::R8_UINT: + { + static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 1, true); + return format; + } + case angle::FormatID::R8G8_UINT: + { + static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 2, true); + return format; + } + case angle::FormatID::R8G8B8_UINT: + { + static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 3, true); + return format; + } + case angle::FormatID::R8G8B8A8_UINT: + { + static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 4, true); + return format; + } + case angle::FormatID::R16_SINT: + { + static const VertexFormat format(GL_SHORT, GL_FALSE, 1, true); + return format; + } + case angle::FormatID::R16G16_SINT: + { + static const VertexFormat format(GL_SHORT, GL_FALSE, 2, true); + return format; + } + case angle::FormatID::R16G16B16_SINT: + { + static const VertexFormat format(GL_SHORT, GL_FALSE, 3, true); + return format; + } + case angle::FormatID::R16G16B16A16_SINT: + { + static const VertexFormat format(GL_SHORT, GL_FALSE, 4, true); + return format; + } + case angle::FormatID::R16_UINT: + { + static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 1, true); + return format; + } + case angle::FormatID::R16G16_UINT: + { + static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 2, true); + return format; + } + case angle::FormatID::R16G16B16_UINT: + { + static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 3, true); + return format; + } + case angle::FormatID::R16G16B16A16_UINT: + { + static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 4, true); + return format; + } + case angle::FormatID::R32_SINT: + { + static const VertexFormat format(GL_INT, GL_FALSE, 1, true); + return format; + } + case angle::FormatID::R32G32_SINT: + { + static const VertexFormat format(GL_INT, GL_FALSE, 2, true); + return format; + } + case angle::FormatID::R32G32B32_SINT: + { + static const VertexFormat format(GL_INT, GL_FALSE, 3, true); + return format; + } + case angle::FormatID::R32G32B32A32_SINT: + { + static const VertexFormat format(GL_INT, GL_FALSE, 4, true); + return format; + } + case angle::FormatID::R32_UINT: + { + static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 1, true); + return format; + } + case angle::FormatID::R32G32_UINT: + { + static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 2, true); + return format; + } + case angle::FormatID::R32G32B32_UINT: + { + static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 3, true); + return format; + } + case angle::FormatID::R32G32B32A32_UINT: + { + static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 4, true); + return format; + } + case angle::FormatID::R32_FIXED: + { + static const VertexFormat format(GL_FIXED, GL_FALSE, 1, false); + return format; + } + case angle::FormatID::R32G32_FIXED: + { + static const VertexFormat format(GL_FIXED, GL_FALSE, 2, false); + return format; + } + case angle::FormatID::R32G32B32_FIXED: + { + static const VertexFormat format(GL_FIXED, GL_FALSE, 3, false); + return format; + } + case angle::FormatID::R32G32B32A32_FIXED: + { + static const VertexFormat format(GL_FIXED, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::R16_FLOAT: + { + static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 1, false); + return format; + } + case angle::FormatID::R16G16_FLOAT: + { + static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 2, false); + return format; + } + case angle::FormatID::R16G16B16_FLOAT: + { + static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 3, false); + return format; + } + case angle::FormatID::R16G16B16A16_FLOAT: + { + static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::R32_FLOAT: + { + static const VertexFormat format(GL_FLOAT, GL_FALSE, 1, false); + return format; + } + case angle::FormatID::R32G32_FLOAT: + { + static const VertexFormat format(GL_FLOAT, GL_FALSE, 2, false); + return format; + } + case angle::FormatID::R32G32B32_FLOAT: + { + static const VertexFormat format(GL_FLOAT, GL_FALSE, 3, false); + return format; + } + case angle::FormatID::R32G32B32A32_FLOAT: + { + static const VertexFormat format(GL_FLOAT, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::R10G10B10A2_SSCALED: + { + static const VertexFormat format(GL_INT_2_10_10_10_REV, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::R10G10B10A2_USCALED: + { + static const VertexFormat format(GL_UNSIGNED_INT_2_10_10_10_REV, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::R10G10B10A2_SNORM: + { + static const VertexFormat format(GL_INT_2_10_10_10_REV, GL_TRUE, 4, false); + return format; + } + case angle::FormatID::R10G10B10A2_UNORM: + { + static const VertexFormat format(GL_UNSIGNED_INT_2_10_10_10_REV, GL_TRUE, 4, false); + return format; + } + case angle::FormatID::R10G10B10A2_SINT: + { + static const VertexFormat format(GL_INT_2_10_10_10_REV, GL_FALSE, 4, true); + return format; + } + case angle::FormatID::R10G10B10A2_UINT: + { + static const VertexFormat format(GL_UNSIGNED_INT_2_10_10_10_REV, GL_FALSE, 4, true); + return format; + } + default: + { + static const VertexFormat format(GL_NONE, GL_FALSE, 0, false); + return format; + } + } +} + +size_t GetVertexFormatSize(angle::FormatID vertexFormatID) +{ + switch (vertexFormatID) + { + case angle::FormatID::R8_SSCALED: + case angle::FormatID::R8_SNORM: + case angle::FormatID::R8_USCALED: + case angle::FormatID::R8_UNORM: + case angle::FormatID::R8_SINT: + case angle::FormatID::R8_UINT: + return 1; + + case angle::FormatID::R8G8_SSCALED: + case angle::FormatID::R8G8_SNORM: + case angle::FormatID::R8G8_USCALED: + case angle::FormatID::R8G8_UNORM: + case angle::FormatID::R8G8_SINT: + case angle::FormatID::R8G8_UINT: + case angle::FormatID::R16_SSCALED: + case angle::FormatID::R16_SNORM: + case angle::FormatID::R16_USCALED: + case angle::FormatID::R16_UNORM: + case angle::FormatID::R16_SINT: + case angle::FormatID::R16_UINT: + case angle::FormatID::R16_FLOAT: + return 2; + + case angle::FormatID::R8G8B8_SSCALED: + case angle::FormatID::R8G8B8_SNORM: + case angle::FormatID::R8G8B8_USCALED: + case angle::FormatID::R8G8B8_UNORM: + case angle::FormatID::R8G8B8_SINT: + case angle::FormatID::R8G8B8_UINT: + return 3; + + case angle::FormatID::R8G8B8A8_SSCALED: + case angle::FormatID::R8G8B8A8_SNORM: + case angle::FormatID::R8G8B8A8_USCALED: + case angle::FormatID::R8G8B8A8_UNORM: + case angle::FormatID::R8G8B8A8_SINT: + case angle::FormatID::R8G8B8A8_UINT: + case angle::FormatID::R16G16_SSCALED: + case angle::FormatID::R16G16_SNORM: + case angle::FormatID::R16G16_USCALED: + case angle::FormatID::R16G16_UNORM: + case angle::FormatID::R16G16_SINT: + case angle::FormatID::R16G16_UINT: + case angle::FormatID::R32_SSCALED: + case angle::FormatID::R32_SNORM: + case angle::FormatID::R32_USCALED: + case angle::FormatID::R32_UNORM: + case angle::FormatID::R32_SINT: + case angle::FormatID::R32_UINT: + case angle::FormatID::R16G16_FLOAT: + case angle::FormatID::R32_FIXED: + case angle::FormatID::R32_FLOAT: + case angle::FormatID::R10G10B10A2_SSCALED: + case angle::FormatID::R10G10B10A2_USCALED: + case angle::FormatID::R10G10B10A2_SNORM: + case angle::FormatID::R10G10B10A2_UNORM: + case angle::FormatID::R10G10B10A2_SINT: + case angle::FormatID::R10G10B10A2_UINT: + return 4; + + case angle::FormatID::R16G16B16_SSCALED: + case angle::FormatID::R16G16B16_SNORM: + case angle::FormatID::R16G16B16_USCALED: + case angle::FormatID::R16G16B16_UNORM: + case angle::FormatID::R16G16B16_SINT: + case angle::FormatID::R16G16B16_UINT: + case angle::FormatID::R16G16B16_FLOAT: + return 6; + + case angle::FormatID::R16G16B16A16_SSCALED: + case angle::FormatID::R16G16B16A16_SNORM: + case angle::FormatID::R16G16B16A16_USCALED: + case angle::FormatID::R16G16B16A16_UNORM: + case angle::FormatID::R16G16B16A16_SINT: + case angle::FormatID::R16G16B16A16_UINT: + case angle::FormatID::R32G32_SSCALED: + case angle::FormatID::R32G32_SNORM: + case angle::FormatID::R32G32_USCALED: + case angle::FormatID::R32G32_UNORM: + case angle::FormatID::R32G32_SINT: + case angle::FormatID::R32G32_UINT: + case angle::FormatID::R16G16B16A16_FLOAT: + case angle::FormatID::R32G32_FIXED: + case angle::FormatID::R32G32_FLOAT: + return 8; + + case angle::FormatID::R32G32B32_SSCALED: + case angle::FormatID::R32G32B32_SNORM: + case angle::FormatID::R32G32B32_USCALED: + case angle::FormatID::R32G32B32_UNORM: + case angle::FormatID::R32G32B32_SINT: + case angle::FormatID::R32G32B32_UINT: + case angle::FormatID::R32G32B32_FIXED: + case angle::FormatID::R32G32B32_FLOAT: + return 12; + + case angle::FormatID::R32G32B32A32_SSCALED: + case angle::FormatID::R32G32B32A32_SNORM: + case angle::FormatID::R32G32B32A32_USCALED: + case angle::FormatID::R32G32B32A32_UNORM: + case angle::FormatID::R32G32B32A32_SINT: + case angle::FormatID::R32G32B32A32_UINT: + case angle::FormatID::R32G32B32A32_FIXED: + case angle::FormatID::R32G32B32A32_FLOAT: + return 16; + + case angle::FormatID::NONE: + default: + UNREACHABLE(); +#if !UNREACHABLE_IS_NORETURN + return 0; +#endif + } +} + +bool ValidES3InternalFormat(GLenum internalFormat) +{ + const InternalFormatInfoMap &formatMap = GetInternalFormatMap(); + return internalFormat != GL_NONE && formatMap.find(internalFormat) != formatMap.end(); +} + +VertexFormat::VertexFormat(GLenum typeIn, + GLboolean normalizedIn, + GLuint componentsIn, + bool pureIntegerIn) + : type(typeIn), normalized(normalizedIn), components(componentsIn), pureInteger(pureIntegerIn) +{ + // float -> !normalized + ASSERT(!(type == GL_FLOAT || type == GL_HALF_FLOAT || type == GL_FIXED) || + normalized == GL_FALSE); +} +} // namespace gl |