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Diffstat (limited to 'gfx/angle/checkout/src/libANGLE/formatutils.cpp')
| -rw-r--r-- | gfx/angle/checkout/src/libANGLE/formatutils.cpp | 3220 |
1 files changed, 3220 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..76273f3be3 --- /dev/null +++ b/gfx/angle/checkout/src/libANGLE/formatutils.cpp @@ -0,0 +1,3220 @@ +// +// Copyright 2013 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +// formatutils.cpp: Queries for GL image formats. + +#include "libANGLE/formatutils.h" + +#include "anglebase/no_destructor.h" +#include "common/mathutil.h" +#include "gpu_info_util/SystemInfo.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 +{ +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; +} + +static bool RequireES1(const Version &clientVersion, const Extensions &extensions) +{ + return clientVersion.major == 1; +} + +template <GLuint minCoreGLMajorVersion, GLuint minCoreGLMinorVersion> +static bool RequireES(const Version &clientVersion, const Extensions &) +{ + return clientVersion >= Version(minCoreGLMajorVersion, minCoreGLMinorVersion); +} + +// 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.textureStorageEXT && extensions.textureRgEXT); +} + +// R16F, RG16F with HALF_FLOAT_OES type +static bool SizedHalfFloatOESRGSupport(const Version &clientVersion, const Extensions &extensions) +{ + return extensions.textureStorageEXT && extensions.textureHalfFloatOES && + extensions.textureRgEXT; +} + +static bool SizedHalfFloatOESRGTextureAttachmentSupport(const Version &clientVersion, + const Extensions &extensions) +{ + return SizedHalfFloatOESRGSupport(clientVersion, extensions) && + extensions.colorBufferHalfFloatEXT; +} + +// 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)) + { + // WebGL 2 supports EXT_color_buffer_half_float. + return extensions.colorBufferFloatEXT || + (extensions.webglCompatibilityANGLE && extensions.colorBufferHalfFloatEXT); + } + // HALF_FLOAT_OES + else + { + return SizedHalfFloatOESRGTextureAttachmentSupport(clientVersion, extensions); + } +} + +static bool SizedHalfFloatRGRenderbufferSupport(const Version &clientVersion, + const Extensions &extensions) +{ + return (clientVersion >= Version(3, 0) || + (extensions.textureHalfFloatOES && extensions.textureRgEXT)) && + (extensions.colorBufferFloatEXT || extensions.colorBufferHalfFloatEXT); +} + +// RGB16F, RGBA16F with HALF_FLOAT_OES type +static bool SizedHalfFloatOESSupport(const Version &clientVersion, const Extensions &extensions) +{ + return extensions.textureStorageEXT && extensions.textureHalfFloatOES; +} + +static bool SizedHalfFloatOESTextureAttachmentSupport(const Version &clientVersion, + const Extensions &extensions) +{ + return SizedHalfFloatOESSupport(clientVersion, extensions) && + extensions.colorBufferHalfFloatEXT; +} + +// 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.textureHalfFloatLinearOES; + } +} + +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. + // The WebGL version of the extension explicitly forbids RGB formats. + return extensions.colorBufferHalfFloatEXT && !extensions.webglCompatibilityANGLE; + } + // HALF_FLOAT_OES + else + { + return SizedHalfFloatOESTextureAttachmentSupport(clientVersion, extensions); + } +} + +static bool SizedHalfFloatRGBRenderbufferSupport(const Version &clientVersion, + const Extensions &extensions) +{ + return !extensions.webglCompatibilityANGLE && + ((clientVersion >= Version(3, 0) || extensions.textureHalfFloatOES) && + extensions.colorBufferHalfFloatEXT); +} + +static bool SizedHalfFloatRGBATextureAttachmentSupport(const Version &clientVersion, + const Extensions &extensions) +{ + // HALF_FLOAT + if (clientVersion >= Version(3, 0)) + { + // WebGL 2 supports EXT_color_buffer_half_float. + return extensions.colorBufferFloatEXT || + (extensions.webglCompatibilityANGLE && extensions.colorBufferHalfFloatEXT); + } + // HALF_FLOAT_OES + else + { + return SizedHalfFloatOESTextureAttachmentSupport(clientVersion, extensions); + } +} + +static bool SizedHalfFloatRGBARenderbufferSupport(const Version &clientVersion, + const Extensions &extensions) +{ + return (clientVersion >= Version(3, 0) || extensions.textureHalfFloatOES) && + (extensions.colorBufferFloatEXT || extensions.colorBufferHalfFloatEXT); +} + +// R32F, RG32F +static bool SizedFloatRGSupport(const Version &clientVersion, const Extensions &extensions) +{ + return clientVersion >= Version(3, 0) || + (extensions.textureStorageEXT && extensions.textureFloatOES && extensions.textureRgEXT); +} + +// RGB32F +static bool SizedFloatRGBSupport(const Version &clientVersion, const Extensions &extensions) +{ + return clientVersion >= Version(3, 0) || + (extensions.textureStorageEXT && extensions.textureFloatOES) || + extensions.colorBufferFloatRgbCHROMIUM; +} + +// RGBA32F +static bool SizedFloatRGBASupport(const Version &clientVersion, const Extensions &extensions) +{ + return clientVersion >= Version(3, 0) || + (extensions.textureStorageEXT && extensions.textureFloatOES) || + extensions.colorBufferFloatRgbaCHROMIUM; +} + +static bool SizedFloatRGBARenderableSupport(const Version &clientVersion, + const Extensions &extensions) +{ + // This logic is the same for both Renderbuffers and TextureAttachment. + return extensions.colorBufferFloatRgbaCHROMIUM || // ES2 + extensions.colorBufferFloatEXT; // ES3 +} + +static bool Float32BlendableSupport(const Version &clientVersion, const Extensions &extensions) +{ + // EXT_float_blend may be exposed on ES2 client contexts. Ensure that RGBA32F is renderable. + return (extensions.colorBufferFloatRgbaCHROMIUM || extensions.colorBufferFloatEXT) && + extensions.floatBlendEXT; +} + +template <ExtensionBool bool1> +static bool ETC2EACSupport(const Version &clientVersion, const Extensions &extensions) +{ + if (extensions.compressedTextureEtcANGLE) + { + return true; + } + + // ETC2/EAC formats are always available in ES 3.0+ but require an extension (checked above) + // in WebGL. If that extension is not available, hide these formats from WebGL contexts. + return !extensions.webglCompatibilityANGLE && + (clientVersion >= Version(3, 0) || extensions.*bool1); +} + +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), + paletted(false), + paletteBits(0), + format(GL_NONE), + type(GL_NONE), + componentType(GL_NONE), + colorEncoding(GL_NONE), + textureSupport(NeverSupported), + filterSupport(NeverSupported), + textureAttachmentSupport(NeverSupported), + renderbufferSupport(NeverSupported), + blendSupport(NeverSupported) +{} + +InternalFormat::InternalFormat(const InternalFormat &other) = default; + +InternalFormat &InternalFormat::operator=(const InternalFormat &other) = default; + +bool InternalFormat::isLUMA() const +{ + return ((redBits + greenBits + blueBits + depthBits + stencilBits) == 0 && + (luminanceBits + alphaBits) > 0); +} + +GLenum InternalFormat::getReadPixelsFormat(const Extensions &extensions) const +{ + switch (format) + { + case GL_BGRA_EXT: + // BGRA textures may be enabled but calling glReadPixels with BGRA is disallowed without + // GL_EXT_texture_format_BGRA8888. Read as RGBA instead. + if (!extensions.readFormatBgraEXT) + { + return GL_RGBA; + } + return GL_BGRA_EXT; + + default: + 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; + } + return GL_HALF_FLOAT; + + default: + return type; + } +} + +bool InternalFormat::supportSubImage() const +{ + return !CompressedFormatRequiresWholeImage(internalFormat); +} + +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(); + return false; + } +} + +bool InternalFormat::isInt() const +{ + return componentType == GL_INT || componentType == GL_UNSIGNED_INT; +} + +bool InternalFormat::isDepthOrStencil() const +{ + return depthBits != 0 || stencilBits != 0; +} + +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; + } + + // GL_ANGLE_rgbx_internal_format: Treat RGBX8 as RGB8, since the X channel is ignored. + if (internalformat == GL_RGBX8_ANGLE) + { + return GL_RGB8; + } + + // Treat ANGLE's BGRX8 as RGB8 since it's swizzled and the X channel is ignored. + if (internalformat == GL_BGRX8_ANGLEX) + { + return GL_RGB8; + } + + 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; +} + +// YuvFormatInfo implementation +YuvFormatInfo::YuvFormatInfo(GLenum internalFormat, const Extents &yPlaneExtent) +{ + ASSERT(gl::IsYuvFormat(internalFormat)); + ASSERT((gl::GetPlaneCount(internalFormat) > 0) && (gl::GetPlaneCount(internalFormat) <= 3)); + + glInternalFormat = internalFormat; + planeCount = gl::GetPlaneCount(internalFormat); + + // Chroma planes of a YUV format can be subsampled + int horizontalSubsampleFactor = 0; + int verticalSubsampleFactor = 0; + gl::GetSubSampleFactor(internalFormat, &horizontalSubsampleFactor, &verticalSubsampleFactor); + + // Compute plane Bpp + planeBpp[0] = gl::GetYPlaneBpp(internalFormat); + planeBpp[1] = gl::GetChromaPlaneBpp(internalFormat); + planeBpp[2] = (planeCount > 2) ? planeBpp[1] : 0; + + // Compute plane extent + planeExtent[0] = yPlaneExtent; + planeExtent[1] = {(yPlaneExtent.width / horizontalSubsampleFactor), + (yPlaneExtent.height / verticalSubsampleFactor), yPlaneExtent.depth}; + planeExtent[2] = (planeCount > 2) ? planeExtent[1] : Extents(); + + // Compute plane pitch + planePitch[0] = planeExtent[0].width * planeBpp[0]; + planePitch[1] = planeExtent[1].width * planeBpp[1]; + planePitch[2] = planeExtent[2].width * planeBpp[2]; + + // Compute plane size + planeSize[0] = planePitch[0] * planeExtent[0].height; + planeSize[1] = planePitch[1] * planeExtent[1].height; + planeSize[2] = planePitch[2] * planeExtent[2].height; + + // Compute plane offset + planeOffset[0] = 0; + planeOffset[1] = planeSize[0]; + planeOffset[2] = planeSize[0] + planeSize[1]; +} + +// YUV format related helpers +bool IsYuvFormat(GLenum format) +{ + switch (format) + { + case GL_G8_B8R8_2PLANE_420_UNORM_ANGLE: + case GL_G8_B8_R8_3PLANE_420_UNORM_ANGLE: + case GL_G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G10X6_B10X6_R10X6_3PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G12X4_B12X4R12X4_2PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G12X4_B12X4_R12X4_3PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G16_B16R16_2PLANE_420_UNORM_ANGLE: + case GL_G16_B16_R16_3PLANE_420_UNORM_ANGLE: + return true; + default: + return false; + } +} + +uint32_t GetPlaneCount(GLenum format) +{ + switch (format) + { + case GL_G8_B8R8_2PLANE_420_UNORM_ANGLE: + case GL_G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G12X4_B12X4R12X4_2PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G16_B16R16_2PLANE_420_UNORM_ANGLE: + return 2; + case GL_G8_B8_R8_3PLANE_420_UNORM_ANGLE: + case GL_G10X6_B10X6_R10X6_3PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G12X4_B12X4_R12X4_3PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G16_B16_R16_3PLANE_420_UNORM_ANGLE: + return 3; + default: + UNREACHABLE(); + return 0; + } +} + +uint32_t GetYPlaneBpp(GLenum format) +{ + switch (format) + { + case GL_G8_B8R8_2PLANE_420_UNORM_ANGLE: + case GL_G8_B8_R8_3PLANE_420_UNORM_ANGLE: + return 1; + case GL_G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G10X6_B10X6_R10X6_3PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G12X4_B12X4R12X4_2PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G12X4_B12X4_R12X4_3PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G16_B16R16_2PLANE_420_UNORM_ANGLE: + case GL_G16_B16_R16_3PLANE_420_UNORM_ANGLE: + return 2; + default: + UNREACHABLE(); + return 0; + } +} + +uint32_t GetChromaPlaneBpp(GLenum format) +{ + // 2 plane 420 YUV formats have CbCr channels interleaved. + // 3 plane 420 YUV formats have separate Cb and Cr planes. + switch (format) + { + case GL_G8_B8_R8_3PLANE_420_UNORM_ANGLE: + return 1; + case GL_G8_B8R8_2PLANE_420_UNORM_ANGLE: + case GL_G10X6_B10X6_R10X6_3PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G12X4_B12X4_R12X4_3PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G16_B16_R16_3PLANE_420_UNORM_ANGLE: + return 2; + case GL_G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G12X4_B12X4R12X4_2PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G16_B16R16_2PLANE_420_UNORM_ANGLE: + return 4; + default: + UNREACHABLE(); + return 0; + } +} + +void GetSubSampleFactor(GLenum format, int *horizontalSubsampleFactor, int *verticalSubsampleFactor) +{ + ASSERT(horizontalSubsampleFactor && verticalSubsampleFactor); + + switch (format) + { + case GL_G8_B8R8_2PLANE_420_UNORM_ANGLE: + case GL_G8_B8_R8_3PLANE_420_UNORM_ANGLE: + case GL_G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G10X6_B10X6_R10X6_3PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G12X4_B12X4R12X4_2PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G12X4_B12X4_R12X4_3PLANE_420_UNORM_3PACK16_ANGLE: + case GL_G16_B16R16_2PLANE_420_UNORM_ANGLE: + case GL_G16_B16_R16_3PLANE_420_UNORM_ANGLE: + *horizontalSubsampleFactor = 2; + *verticalSubsampleFactor = 2; + break; + default: + UNREACHABLE(); + break; + } +} + +struct FormatBits +{ + constexpr GLuint pixelBytes() const + { + return (red + green + blue + alpha + shared + unused) / 8; + } + constexpr GLuint componentCount() const + { + return ((red > 0) ? 1 : 0) + ((green > 0) ? 1 : 0) + ((blue > 0) ? 1 : 0) + + ((alpha > 0) ? 1 : 0); + } + constexpr bool valid() const + { + return ((red + green + blue + alpha + shared + unused) % 8) == 0; + } + + GLuint red; + GLuint green; + GLuint blue; + GLuint alpha; + GLuint unused; + GLuint shared; +}; + +template <GLuint red, GLuint green, GLuint blue, GLuint alpha, GLuint unused, GLuint shared> +constexpr FormatBits FB() +{ + constexpr FormatBits formatBits = {red, green, blue, alpha, unused, shared}; + static_assert(formatBits.valid(), "Invalid FormatBits"); + return formatBits; +} + +void AddRGBAXFormat(InternalFormatInfoMap *map, + GLenum internalFormat, + bool sized, + const FormatBits &formatBits, + GLenum format, + GLenum type, + GLenum componentType, + bool srgb, + InternalFormat::SupportCheckFunction textureSupport, + InternalFormat::SupportCheckFunction filterSupport, + InternalFormat::SupportCheckFunction textureAttachmentSupport, + InternalFormat::SupportCheckFunction renderbufferSupport, + InternalFormat::SupportCheckFunction blendSupport) +{ + ASSERT(formatBits.valid()); + + InternalFormat formatInfo; + formatInfo.internalFormat = internalFormat; + formatInfo.sized = sized; + formatInfo.sizedInternalFormat = + sized ? internalFormat : GetSizedFormatInternal(internalFormat, type); + formatInfo.redBits = formatBits.red; + formatInfo.greenBits = formatBits.green; + formatInfo.blueBits = formatBits.blue; + formatInfo.alphaBits = formatBits.alpha; + formatInfo.sharedBits = formatBits.shared; + formatInfo.pixelBytes = formatBits.pixelBytes(); + formatInfo.componentCount = formatBits.componentCount(); + 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; + formatInfo.blendSupport = blendSupport; + + InsertFormatInfo(map, 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::SupportCheckFunction blendSupport) +{ + return AddRGBAXFormat(map, internalFormat, sized, {red, green, blue, alpha, 0, shared}, format, + type, componentType, srgb, textureSupport, filterSupport, + textureAttachmentSupport, renderbufferSupport, blendSupport); +} + +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::SupportCheckFunction blendSupport) +{ + 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; + formatInfo.blendSupport = blendSupport; + + 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::SupportCheckFunction blendSupport) +{ + 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; + formatInfo.blendSupport = blendSupport; + + 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::SupportCheckFunction blendSupport) +{ + 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; + formatInfo.blendSupport = blendSupport; + + InsertFormatInfo(map, formatInfo); +} + +void AddPalettedFormat(InternalFormatInfoMap *map, + GLenum internalFormat, + GLuint paletteBits, + GLuint pixelBytes, + GLenum format, + GLuint componentCount, + InternalFormat::SupportCheckFunction textureSupport, + InternalFormat::SupportCheckFunction filterSupport, + InternalFormat::SupportCheckFunction textureAttachmentSupport, + InternalFormat::SupportCheckFunction renderbufferSupport, + InternalFormat::SupportCheckFunction blendSupport) +{ + InternalFormat formatInfo; + formatInfo.internalFormat = internalFormat; + formatInfo.sized = true; + formatInfo.sizedInternalFormat = internalFormat; + formatInfo.paletteBits = paletteBits; + formatInfo.pixelBytes = pixelBytes; + formatInfo.componentCount = componentCount; + formatInfo.format = format; + formatInfo.type = GL_UNSIGNED_BYTE; + formatInfo.componentType = GL_UNSIGNED_NORMALIZED; + formatInfo.colorEncoding = GL_LINEAR; + formatInfo.paletted = true; + formatInfo.textureSupport = textureSupport; + formatInfo.filterSupport = filterSupport; + formatInfo.textureAttachmentSupport = textureAttachmentSupport; + formatInfo.renderbufferSupport = renderbufferSupport; + formatInfo.blendSupport = blendSupport; + + InsertFormatInfo(map, formatInfo); +} + +void AddYUVFormat(InternalFormatInfoMap *map, + GLenum internalFormat, + bool sized, + GLuint cr, + GLuint y, + GLuint cb, + 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::SupportCheckFunction blendSupport) +{ + ASSERT(sized); + + InternalFormat formatInfo; + formatInfo.internalFormat = internalFormat; + formatInfo.sized = sized; + formatInfo.sizedInternalFormat = internalFormat; + formatInfo.redBits = cr; + formatInfo.greenBits = y; + formatInfo.blueBits = cb; + formatInfo.alphaBits = alpha; + formatInfo.sharedBits = shared; + formatInfo.pixelBytes = (cr + y + cb + alpha + shared) / 8; + formatInfo.componentCount = + ((cr > 0) ? 1 : 0) + ((y > 0) ? 1 : 0) + ((cb > 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; + formatInfo.blendSupport = blendSupport; + + 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 | Blend + 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::textureRgEXT>, RequireESOrExt<3, 0, &Extensions::textureRgEXT>); + 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, 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::textureRgEXT>, RequireESOrExt<3, 0, &Extensions::textureRgEXT>); + 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, NeverSupported); + AddRGBAFormat(&map, GL_RGB8, true, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureStorageEXT>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorageEXT>, RequireESOrExt<3, 0, &Extensions::rgb8Rgba8OES>, RequireESOrExt<3, 0, &Extensions::rgb8Rgba8OES>); + 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, 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::textureStorageEXT>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorageEXT>, RequireES<2, 0>, 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::textureStorageEXT>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorageEXT>, RequireES<2, 0>, 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::textureStorageEXT>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorageEXT>, RequireES<2, 0>, 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::textureStorageEXT>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorageEXT>, RequireESOrExt<3, 0, &Extensions::rgb8Rgba8OES>, RequireESOrExt<3, 0, &Extensions::rgb8Rgba8OES>); + 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, NeverSupported); + 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>, NeverSupported); + 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, NeverSupported); + AddRGBAFormat(&map, GL_SRGB8_ALPHA8, true, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireESOrExt<3, 0, &Extensions::sRGBEXT>, AlwaysSupported, RequireES<3, 0>, RequireESOrExt<3, 0, &Extensions::sRGBEXT>, RequireESOrExt<3, 0, &Extensions::sRGBEXT>); + 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::colorBufferFloatEXT>, RequireExt<&Extensions::colorBufferFloatEXT>, RequireExt<&Extensions::colorBufferFloatEXT>); + 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, 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + AddRGBAFormat(&map, GL_RGB8I, true, 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, 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, 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, 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, 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, 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, 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + 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>, NeverSupported); + + AddRGBAFormat(&map, GL_BGRA8_EXT, true, 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888EXT>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888EXT>, RequireExt<&Extensions::textureFormatBGRA8888EXT>, RequireExt<&Extensions::textureFormatBGRA8888EXT>); + 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::textureFormatBGRA8888EXT>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888EXT>, RequireExt<&Extensions::textureFormatBGRA8888EXT>, RequireExt<&Extensions::textureFormatBGRA8888EXT>); + 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::textureFormatBGRA8888EXT>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888EXT>, RequireExt<&Extensions::textureFormatBGRA8888EXT>, RequireExt<&Extensions::textureFormatBGRA8888EXT>); + + // 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, AlwaysSupported); + + // Special format which is not really supported, so always false for all supports. + AddRGBAFormat(&map, GL_BGR565_ANGLEX, true, 5, 6, 5, 0, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_BGR10_A2_ANGLEX, true, 10, 10, 10, 2, 0, GL_BGRA_EXT, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + + // Special format to emulate RGB8 with RGBA8 within ANGLE. + AddRGBAFormat(&map, GL_RGBX8_ANGLE, true, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported, AlwaysSupported, NeverSupported); + + // Special format to emulate BGR8 with BGRA8 within ANGLE. + AddRGBAFormat(&map, GL_BGRX8_ANGLEX, true, 8, 8, 8, 0, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // This format is supported on ES 2.0 with two extensions, so keep it out-of-line to not widen the table above even more. + // | Internal format |sized| R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + 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, RequireESOrExtAndExt<3, 0, &Extensions::textureStorageEXT, &Extensions::textureType2101010REVEXT>, AlwaysSupported, RequireES<3, 0>, RequireES<3, 0>, RequireES<3, 0>); + + // Floating point formats + // | Internal format |sized| R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + // 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, SizedHalfFloatRGRenderbufferSupport); + AddRGBAFormat(&map, GL_RG16F, true, 16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, GL_FLOAT, false, SizedHalfFloatRGSupport, SizedHalfFloatFilterSupport, SizedHalfFloatRGTextureAttachmentSupport, SizedHalfFloatRGRenderbufferSupport, SizedHalfFloatRGRenderbufferSupport); + AddRGBAFormat(&map, GL_RGB16F, true, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, SizedHalfFloatSupport, SizedHalfFloatFilterSupport, SizedHalfFloatRGBTextureAttachmentSupport, SizedHalfFloatRGBRenderbufferSupport, SizedHalfFloatRGBRenderbufferSupport); + AddRGBAFormat(&map, GL_RGBA16F, true, 16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, GL_FLOAT, false, SizedHalfFloatSupport, SizedHalfFloatFilterSupport, SizedHalfFloatRGBATextureAttachmentSupport, SizedHalfFloatRGBARenderbufferSupport, SizedHalfFloatRGBARenderbufferSupport); + AddRGBAFormat(&map, GL_R32F, true, 32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, SizedFloatRGSupport, RequireExt<&Extensions::textureFloatLinearOES>, RequireExt<&Extensions::colorBufferFloatEXT>, RequireExt<&Extensions::colorBufferFloatEXT>, Float32BlendableSupport); + AddRGBAFormat(&map, GL_RG32F, true, 32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, SizedFloatRGSupport, RequireExt<&Extensions::textureFloatLinearOES>, RequireExt<&Extensions::colorBufferFloatEXT>, RequireExt<&Extensions::colorBufferFloatEXT>, Float32BlendableSupport); + AddRGBAFormat(&map, GL_RGB32F, true, 32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, SizedFloatRGBSupport, RequireExt<&Extensions::textureFloatLinearOES>, RequireExt<&Extensions::colorBufferFloatRgbCHROMIUM>, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA32F, true, 32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, SizedFloatRGBASupport, RequireExt<&Extensions::textureFloatLinearOES>, SizedFloatRGBARenderableSupport, SizedFloatRGBARenderableSupport, Float32BlendableSupport); + + // ANGLE Depth stencil formats + // | Internal format |sized| D |S | X | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT16, true, 16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, RequireESOrExtOrExt<3, 0, &Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, RequireESOrExtOrExt<3, 0, &Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, RequireES<1, 0>, RequireES<1, 0>, RequireES<1, 0>); + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT24, true, 24, 0, 8, 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>, 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>, RequireES<3, 0>); + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT32_OES, true, 32, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, AlwaysSupported, RequireExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, RequireExtOrExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES, &Extensions::depth32OES>, RequireExtOrExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES, &Extensions::depth32OES>); + AddDepthStencilFormat(&map, GL_DEPTH24_STENCIL8, true, 24, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_NORMALIZED, RequireESOrExtOrExt<3, 0, &Extensions::depthTextureANGLE, &Extensions::packedDepthStencilOES>, AlwaysSupported, RequireESOrExtOrExt<3, 0, &Extensions::depthTextureANGLE, &Extensions::packedDepthStencilOES>, RequireESOrExtOrExt<3, 0, &Extensions::depthTextureANGLE, &Extensions::packedDepthStencilOES>, RequireESOrExtOrExt<3, 0, &Extensions::depthTextureANGLE, &Extensions::packedDepthStencilOES>); + AddDepthStencilFormat(&map, GL_DEPTH32F_STENCIL8, true, 32, 8, 24, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_FLOAT, RequireESOrExt<3, 0, &Extensions::depthBufferFloat2NV>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::depthBufferFloat2NV>, RequireESOrExt<3, 0, &Extensions::depthBufferFloat2NV>, RequireESOrExt<3, 0, &Extensions::depthBufferFloat2NV>); + // 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 | Blend + AddLUMAFormat(&map, GL_ALPHA8_EXT, true, 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorageEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE8_EXT, true, 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorageEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE8_ALPHA8_EXT, true, 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorageEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_ALPHA16F_EXT, true, 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorageEXT, &Extensions::textureHalfFloatOES>, RequireExt<&Extensions::textureHalfFloatLinearOES>, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE16F_EXT, true, 16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorageEXT, &Extensions::textureHalfFloatOES>, RequireExt<&Extensions::textureHalfFloatLinearOES>, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE_ALPHA16F_EXT, true, 16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorageEXT, &Extensions::textureHalfFloatOES>, RequireExt<&Extensions::textureHalfFloatLinearOES>, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_ALPHA32F_EXT, true, 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorageEXT, &Extensions::textureFloatOES>, RequireExt<&Extensions::textureFloatLinearOES>, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE32F_EXT, true, 32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorageEXT, &Extensions::textureFloatOES>, RequireExt<&Extensions::textureFloatLinearOES>, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE_ALPHA32F_EXT, true, 32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorageEXT, &Extensions::textureFloatOES>, RequireExt<&Extensions::textureFloatLinearOES>, NeverSupported, 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 | Blend + AddCompressedFormat(&map, GL_COMPRESSED_R11_EAC, 4, 4, 1, 64, 1, false, ETC2EACSupport<&Extensions::compressedEACR11UnsignedTextureOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SIGNED_R11_EAC, 4, 4, 1, 64, 1, false, ETC2EACSupport<&Extensions::compressedEACR11SignedTextureOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RG11_EAC, 4, 4, 1, 128, 2, false, ETC2EACSupport<&Extensions::compressedEACRG11UnsignedTextureOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SIGNED_RG11_EAC, 4, 4, 1, 128, 2, false, ETC2EACSupport<&Extensions::compressedEACRG11SignedTextureOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB8_ETC2, 4, 4, 1, 64, 3, false, ETC2EACSupport<&Extensions::compressedETC2RGB8TextureOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ETC2, 4, 4, 1, 64, 3, true, ETC2EACSupport<&Extensions::compressedETC2SRGB8TextureOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, 4, 4, 1, 64, 4, false, ETC2EACSupport<&Extensions::compressedETC2PunchthroughARGBA8TextureOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, 4, 4, 1, 64, 4, true, ETC2EACSupport<&Extensions::compressedETC2PunchthroughASRGB8AlphaTextureOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA8_ETC2_EAC, 4, 4, 1, 128, 4, false, ETC2EACSupport<&Extensions::compressedETC2RGBA8TextureOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, 4, 4, 1, 128, 4, true, ETC2EACSupport<&Extensions::compressedETC2SRGB8Alpha8TextureOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // From GL_EXT_texture_compression_dxt1 + // | Internal format |W |H |D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddCompressedFormat(&map, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::textureCompressionDxt1EXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 4, 4, 1, 64, 4, false, RequireExt<&Extensions::textureCompressionDxt1EXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // From GL_ANGLE_texture_compression_dxt3 + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionDxt3ANGLE>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // From GL_ANGLE_texture_compression_dxt5 + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionDxt5ANGLE>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // From GL_OES_compressed_ETC1_RGB8_texture + AddCompressedFormat(&map, GL_ETC1_RGB8_OES, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::compressedETC1RGB8TextureOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // From GL_EXT_texture_compression_s3tc_srgb + // | Internal format |W |H |D | BS |CC|SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, 4, 4, 1, 64, 3, true, RequireExt<&Extensions::textureCompressionS3tcSrgbEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, 4, 4, 1, 64, 4, true, RequireExt<&Extensions::textureCompressionS3tcSrgbEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, 4, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionS3tcSrgbEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, 4, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionS3tcSrgbEXT>, AlwaysSupported, NeverSupported, 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 | Blend + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x4_KHR, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x4_KHR, 5, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x5_KHR, 5, 5, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x5_KHR, 6, 5, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x6_KHR, 6, 6, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_8x5_KHR, 8, 5, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_8x6_KHR, 8, 6, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_8x8_KHR, 8, 8, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x5_KHR, 10, 5, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x6_KHR, 10, 6, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x8_KHR, 10, 8, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x10_KHR, 10, 10, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_12x10_KHR, 12, 10, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_12x12_KHR, 12, 12, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR, 4, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR, 5, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR, 5, 5, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR, 6, 5, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR, 6, 6, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR, 8, 5, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR, 8, 6, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR, 8, 8, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR, 10, 5, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR, 10, 6, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR, 10, 8, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR, 10, 10, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR, 12, 10, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR, 12, 12, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcLdrKHR>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_3x3x3_OES, 3, 3, 3, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x3x3_OES, 4, 3, 3, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x4x3_OES, 4, 4, 3, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x4x4_OES, 4, 4, 4, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x4x4_OES, 5, 4, 4, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x5x4_OES, 5, 5, 4, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x5x5_OES, 5, 5, 5, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x5x5_OES, 6, 5, 5, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x6x5_OES, 6, 6, 5, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x6x6_OES, 6, 6, 6, 128, 4, false, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES, 3, 3, 3, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES, 4, 3, 3, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES, 4, 4, 3, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES, 4, 4, 4, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES, 5, 4, 4, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES, 5, 5, 4, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES, 5, 5, 5, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES, 6, 5, 5, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES, 6, 6, 5, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES, 6, 6, 6, 128, 4, true, RequireExt<&Extensions::textureCompressionAstcOES>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // From EXT_texture_compression_rgtc + // | Internal format | W | H |D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddCompressedFormat(&map, GL_COMPRESSED_RED_RGTC1_EXT, 4, 4, 1, 64, 1, false, RequireExt<&Extensions::textureCompressionRgtcEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SIGNED_RED_RGTC1_EXT, 4, 4, 1, 64, 1, false, RequireExt<&Extensions::textureCompressionRgtcEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RED_GREEN_RGTC2_EXT, 4, 4, 1, 128, 2, false, RequireExt<&Extensions::textureCompressionRgtcEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT, 4, 4, 1, 128, 2, false, RequireExt<&Extensions::textureCompressionRgtcEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // From EXT_texture_compression_bptc + // | Internal format | W | H |D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_BPTC_UNORM_EXT, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionBptcEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT, 4, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionBptcEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionBptcEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionBptcEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // Paletted formats + // | Internal format | | PS | Format | CC | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddPalettedFormat(&map, GL_PALETTE4_RGB8_OES, 4, 3, GL_RGB, 3, RequireES1, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddPalettedFormat(&map, GL_PALETTE4_RGBA8_OES, 4, 4, GL_RGBA, 4, RequireES1, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddPalettedFormat(&map, GL_PALETTE4_R5_G6_B5_OES, 4, 2, GL_RGB, 3, RequireES1, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddPalettedFormat(&map, GL_PALETTE4_RGBA4_OES, 4, 2, GL_RGBA, 4, RequireES1, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddPalettedFormat(&map, GL_PALETTE4_RGB5_A1_OES, 4, 2, GL_RGBA, 4, RequireES1, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddPalettedFormat(&map, GL_PALETTE8_RGB8_OES, 8, 3, GL_RGB, 3, RequireES1, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddPalettedFormat(&map, GL_PALETTE8_RGBA8_OES, 8, 4, GL_RGBA, 4, RequireES1, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddPalettedFormat(&map, GL_PALETTE8_R5_G6_B5_OES, 8, 2, GL_RGB, 3, RequireES1, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddPalettedFormat(&map, GL_PALETTE8_RGBA4_OES, 8, 2, GL_RGBA, 4, RequireES1, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddPalettedFormat(&map, GL_PALETTE8_RGB5_A1_OES, 8, 2, GL_RGBA, 4, RequireES1, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // From GL_IMG_texture_compression_pvrtc + // | Internal format | W | H | D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddCompressedFormat(&map, GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::textureCompressionPvrtcIMG>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, 8, 4, 1, 64, 3, false, RequireExt<&Extensions::textureCompressionPvrtcIMG>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, 4, 4, 1, 64, 4, false, RequireExt<&Extensions::textureCompressionPvrtcIMG>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, 8, 4, 1, 64, 4, false, RequireExt<&Extensions::textureCompressionPvrtcIMG>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // From GL_EXT_pvrtc_sRGB + // | Internal format | W | H | D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT, 8, 4, 1, 64, 3, true, RequireExtAndExt<&Extensions::textureCompressionPvrtcIMG, &Extensions::pvrtcSRGBEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT, 4, 4, 1, 64, 3, true, RequireExtAndExt<&Extensions::textureCompressionPvrtcIMG, &Extensions::pvrtcSRGBEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT, 8, 4, 1, 64, 4, true, RequireExtAndExt<&Extensions::textureCompressionPvrtcIMG, &Extensions::pvrtcSRGBEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT, 4, 4, 1, 64, 4, true, RequireExtAndExt<&Extensions::textureCompressionPvrtcIMG, &Extensions::pvrtcSRGBEXT>, AlwaysSupported, NeverSupported, 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 | Blend + AddDepthStencilFormat(&map, GL_STENCIL_INDEX8, true, 0, 8, 0, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireESOrExt<1, 0, &Extensions::textureStencil8OES>, NeverSupported, RequireESOrExt<1, 0, &Extensions::textureStencil8OES>, 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 | Blend + AddCompressedFormat(&map, GL_ETC1_RGB8_LOSSY_DECODE_ANGLE, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::lossyEtcDecodeANGLE>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::lossyEtcDecodeANGLE>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 1, 64, 3, true, RequireExt<&Extensions::lossyEtcDecodeANGLE>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::lossyEtcDecodeANGLE>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 1, 64, 3, true, RequireExt<&Extensions::lossyEtcDecodeANGLE>, AlwaysSupported, NeverSupported, 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 | Blend + AddRGBAFormat(&map, GL_R16_EXT, true, 16, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16EXT>, AlwaysSupported, RequireExt<&Extensions::textureNorm16EXT>, RequireExt<&Extensions::textureNorm16EXT>, RequireExt<&Extensions::textureNorm16EXT>); + AddRGBAFormat(&map, GL_R16_SNORM_EXT, true, 16, 0, 0, 0, 0, GL_RED, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16EXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG16_EXT, true, 16, 16, 0, 0, 0, GL_RG, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16EXT>, AlwaysSupported, RequireExt<&Extensions::textureNorm16EXT>, RequireExt<&Extensions::textureNorm16EXT>, RequireExt<&Extensions::textureNorm16EXT>); + AddRGBAFormat(&map, GL_RG16_SNORM_EXT, true, 16, 16, 0, 0, 0, GL_RG, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16EXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB16_EXT, true, 16, 16, 16, 0, 0, GL_RGB, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16EXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB16_SNORM_EXT, true, 16, 16, 16, 0, 0, GL_RGB, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16EXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA16_EXT, true, 16, 16, 16, 16, 0, GL_RGBA, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16EXT>, AlwaysSupported, RequireExt<&Extensions::textureNorm16EXT>, RequireExt<&Extensions::textureNorm16EXT>, RequireExt<&Extensions::textureNorm16EXT>); + AddRGBAFormat(&map, GL_RGBA16_SNORM_EXT, true, 16, 16, 16, 16, 0, GL_RGBA, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16EXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // From EXT_texture_sRGB_R8 + // | Internal format |sized| R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddRGBAFormat(&map, GL_SR8_EXT, true, 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireExt<&Extensions::textureSRGBR8EXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // From EXT_texture_sRGB_RG8 + // | Internal format |sized| R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddRGBAFormat(&map, GL_SRG8_EXT, true, 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireExt<&Extensions::textureSRGBRG8EXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + + // From GL_EXT_texture_type_2_10_10_10_REV + // GL_RGB10_UNORM_ANGLEX is never used directly but needs to be in the list of all sized internal formats so that the backends can determine support. + // | Internal format |sized| R | G | B | A |S |X | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddRGBAXFormat(&map, GL_RGB10_UNORM_ANGLEX, true, FB<10, 10, 10, 0, 0, 2>(), GL_RGB, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + + // Unsized formats + // | Internal format |sized | R | G | B | A |S |X | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddRGBAXFormat(&map, GL_RED, false, FB< 8, 0, 0, 0, 0, 0>(), GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureRgEXT>, AlwaysSupported, RequireExt<&Extensions::textureRgEXT>, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RED, false, FB< 8, 0, 0, 0, 0, 0>(), GL_RED, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RED, false, FB<16, 0, 0, 0, 0, 0>(), GL_RED, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16EXT>, AlwaysSupported, RequireExt<&Extensions::textureNorm16EXT>, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RG, false, FB< 8, 8, 0, 0, 0, 0>(), GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureRgEXT>, AlwaysSupported, RequireExt<&Extensions::textureRgEXT>, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RG, false, FB< 8, 8, 0, 0, 0, 0>(), GL_RG, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RG, false, FB<16, 16, 0, 0, 0, 0>(), GL_RG, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16EXT>, AlwaysSupported, RequireExt<&Extensions::textureNorm16EXT>, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RGB, false, FB< 8, 8, 8, 0, 0, 0>(), GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireESOrExt<2, 0, &Extensions::framebufferObjectOES>, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RGB, false, FB< 5, 6, 5, 0, 0, 0>(), GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireESOrExt<2, 0, &Extensions::framebufferObjectOES>, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RGB, false, FB< 8, 8, 8, 0, 0, 0>(), GL_RGB, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RGB, false, FB<10, 10, 10, 0, 0, 2>(), GL_RGB, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureType2101010REVEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RGBA, false, FB< 4, 4, 4, 4, 0, 0>(), GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireESOrExt<2, 0, &Extensions::framebufferObjectOES>, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RGBA, false, FB< 5, 5, 5, 1, 0, 0>(), GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireESOrExt<2, 0, &Extensions::framebufferObjectOES>, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RGBA, false, FB< 8, 8, 8, 8, 0, 0>(), GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireESOrExt<2, 0, &Extensions::framebufferObjectOES>, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RGBA, false, FB<16, 16, 16, 16, 0, 0>(), GL_RGBA, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16EXT>, AlwaysSupported, RequireExt<&Extensions::textureNorm16EXT>, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RGBA, false, FB<10, 10, 10, 2, 0, 0>(), GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureType2101010REVEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_RGBA, false, FB< 8, 8, 8, 8, 0, 0>(), GL_RGBA, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_SRGB, false, FB< 8, 8, 8, 0, 0, 0>(), GL_SRGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireExt<&Extensions::sRGBEXT>, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddRGBAXFormat(&map, GL_SRGB_ALPHA_EXT, false, FB< 8, 8, 8, 8, 0, 0>(), GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireExt<&Extensions::sRGBEXT>, AlwaysSupported, RequireExt<&Extensions::sRGBEXT>, NeverSupported, NeverSupported); +#if (defined(ANGLE_PLATFORM_IOS) && !defined(ANGLE_PLATFORM_MACCATALYST)) || (defined(ANGLE_PLATFORM_MACCATALYST) && defined(ANGLE_CPU_ARM64)) + angle::SystemInfo info; + if (angle::GetSystemInfo(&info)) + { + if (info.needsEAGLOnMac) + { + // Using OpenGLES.framework. + AddRGBAFormat(&map, GL_BGRA_EXT, false, 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireES<2, 0>, AlwaysSupported, RequireES<2, 0>, NeverSupported, NeverSupported); + } + else + { + // Using OpenGL.framework. + AddRGBAFormat(&map, GL_BGRA_EXT, false, 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888EXT>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888EXT>, NeverSupported, NeverSupported); + } + } +#else + AddRGBAFormat(&map, GL_BGRA_EXT, false, 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888EXT>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888EXT>, NeverSupported, NeverSupported); +#endif + + // Unsized integer formats + // |Internal format |sized | R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, NeverSupported); + + // Unsized floating point formats + // |Internal format |sized | R | G | B | A |S | Format | Type | Comp | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddRGBAFormat(&map, GL_RED, false, 16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, 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, NeverSupported); + AddRGBAFormat(&map, GL_RGB, false, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, 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, NeverSupported); + AddRGBAFormat(&map, GL_RED, false, 16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT_OES, GL_FLOAT, false, RequireExtAndExt<&Extensions::textureHalfFloatOES, &Extensions::textureRgEXT>, RequireExt<&Extensions::textureHalfFloatLinearOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG, false, 16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT_OES, GL_FLOAT, false, RequireExtAndExt<&Extensions::textureHalfFloatOES, &Extensions::textureRgEXT>, RequireExt<&Extensions::textureHalfFloatLinearOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB, false, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT_OES, GL_FLOAT, false, RequireExt<&Extensions::textureHalfFloatOES>, RequireExt<&Extensions::textureHalfFloatLinearOES>, RequireExt<&Extensions::colorBufferHalfFloatEXT>, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGBA, false, 16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT_OES, GL_FLOAT, false, RequireExt<&Extensions::textureHalfFloatOES>, RequireExt<&Extensions::textureHalfFloatLinearOES>, RequireExt<&Extensions::colorBufferHalfFloatEXT>, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RED, false, 32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, RequireExtAndExt<&Extensions::textureFloatOES, &Extensions::textureRgEXT>, RequireExt<&Extensions::textureFloatLinearOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RG, false, 32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, RequireExtAndExt<&Extensions::textureFloatOES, &Extensions::textureRgEXT>, RequireExt<&Extensions::textureFloatLinearOES>, AlwaysSupported, NeverSupported, NeverSupported); + AddRGBAFormat(&map, GL_RGB, false, 32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, RequireExt<&Extensions::textureFloatOES>, RequireExt<&Extensions::textureFloatLinearOES>, NeverSupported, 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, 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, NeverSupported); + AddRGBAFormat(&map, GL_RGBA, false, 32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, RequireExt<&Extensions::textureFloatOES>, RequireExt<&Extensions::textureFloatLinearOES>, NeverSupported, NeverSupported, NeverSupported); + + // Unsized luminance alpha formats + // | Internal format |sized | L | A | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddLUMAFormat(&map, GL_ALPHA, false, 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE, false, 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE_ALPHA, false, 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_ALPHA, false, 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExt<&Extensions::textureHalfFloatOES>, RequireExt<&Extensions::textureHalfFloatLinearOES>, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE, false, 16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExt<&Extensions::textureHalfFloatOES>, RequireExt<&Extensions::textureHalfFloatLinearOES>, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE_ALPHA, false, 16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExt<&Extensions::textureHalfFloatOES>, RequireExt<&Extensions::textureHalfFloatLinearOES>, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_ALPHA, false, 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, RequireExt<&Extensions::textureFloatOES>, RequireExt<&Extensions::textureFloatLinearOES>, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE, false, 32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, RequireExt<&Extensions::textureFloatOES>, RequireExt<&Extensions::textureFloatLinearOES>, NeverSupported, NeverSupported, NeverSupported); + AddLUMAFormat(&map, GL_LUMINANCE_ALPHA, false, 32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, RequireExt<&Extensions::textureFloatOES>, RequireExt<&Extensions::textureFloatLinearOES>, NeverSupported, NeverSupported, NeverSupported); + + // Unsized depth stencil formats + // | Internal format |sized | D |S | X | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT, false, 16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, RequireES<1, 0>, AlwaysSupported, RequireExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, RequireExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, RequireExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES>); + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT, false, 24, 0, 8, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireES<1, 0>, AlwaysSupported, RequireExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, RequireExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, RequireExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES>); + 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>, RequireES<1, 0>); + AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT, false, 24, 8, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_NORMALIZED, RequireESOrExt<3, 0, &Extensions::packedDepthStencilOES>, AlwaysSupported, RequireExtAndExt<&Extensions::packedDepthStencilOES, &Extensions::depthTextureANGLE>, RequireExtAndExt<&Extensions::packedDepthStencilOES, &Extensions::depthTextureANGLE>, RequireExtAndExt<&Extensions::packedDepthStencilOES, &Extensions::depthTextureANGLE>); + AddDepthStencilFormat(&map, GL_DEPTH_STENCIL, false, 24, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_NORMALIZED, RequireESOrExt<3, 0, &Extensions::packedDepthStencilOES>, AlwaysSupported, RequireExtAndExt<&Extensions::packedDepthStencilOES, &Extensions::depthTextureANGLE>, RequireExtAndExt<&Extensions::packedDepthStencilOES, &Extensions::depthTextureANGLE>, RequireExtAndExt<&Extensions::packedDepthStencilOES, &Extensions::depthTextureANGLE>); + 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::packedDepthStencilOES>, AlwaysSupported, RequireExt<&Extensions::packedDepthStencilOES>, RequireExt<&Extensions::packedDepthStencilOES>, RequireExt<&Extensions::packedDepthStencilOES>); + 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>, RequireES<1, 0>); + AddDepthStencilFormat(&map, GL_STENCIL_INDEX, false, 0, 8, 0, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<3, 1>, NeverSupported , RequireES<3, 1>, RequireES<3, 1>, RequireES<3, 1>); + + // Non-standard YUV formats + // | Internal format | sized | Cr | Y | Cb | A | S | Format | Type | Comp | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer | Blend + AddYUVFormat(&map, GL_G8_B8R8_2PLANE_420_UNORM_ANGLE, true, 8, 8, 8, 0, 0, GL_G8_B8R8_2PLANE_420_UNORM_ANGLE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::yuvInternalFormatANGLE>, RequireExt<&Extensions::yuvInternalFormatANGLE>, RequireExt<&Extensions::yuvInternalFormatANGLE>, NeverSupported, NeverSupported); + AddYUVFormat(&map, GL_G8_B8_R8_3PLANE_420_UNORM_ANGLE, true, 8, 8, 8, 0, 0, GL_G8_B8_R8_3PLANE_420_UNORM_ANGLE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::yuvInternalFormatANGLE>, RequireExt<&Extensions::yuvInternalFormatANGLE>, RequireExt<&Extensions::yuvInternalFormatANGLE>, NeverSupported, NeverSupported); + +#if defined(ANGLE_PLATFORM_LINUX) + // From GL_OES_required_internalformat + // The |shared| bit shouldn't be 2. But given this hits assertion when bits + // are checked, it's fine to have this bit set as 2 as a workaround. + AddRGBAFormat(&map, GL_RGB10_EXT, true, 10, 10, 10, 0, 2, GL_RGB, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, RequireES<1, 0>, NeverSupported, RequireES<1, 0>, RequireES<1, 0>, NeverSupported); +#endif + // clang-format on + + return map; +} + +const InternalFormatInfoMap &GetInternalFormatMap() +{ + static const angle::base::NoDestructor<InternalFormatInfoMap> formatMap( + BuildInternalFormatInfoMap()); + return *formatMap; +} + +int GetAndroidHardwareBufferFormatFromChannelSizes(const egl::AttributeMap &attribMap) +{ + // Retrieve channel size from attribute map. The default value should be 0, per spec. + GLuint redSize = static_cast<GLuint>(attribMap.getAsInt(EGL_RED_SIZE, 0)); + GLuint greenSize = static_cast<GLuint>(attribMap.getAsInt(EGL_GREEN_SIZE, 0)); + GLuint blueSize = static_cast<GLuint>(attribMap.getAsInt(EGL_BLUE_SIZE, 0)); + GLuint alphaSize = static_cast<GLuint>(attribMap.getAsInt(EGL_ALPHA_SIZE, 0)); + + GLenum glInternalFormat = 0; + for (GLenum sizedInternalFormat : angle::android::kSupportedSizedInternalFormats) + { + const gl::InternalFormat &internalFormat = GetSizedInternalFormatInfo(sizedInternalFormat); + ASSERT(internalFormat.internalFormat != GL_NONE && internalFormat.sized); + + if (internalFormat.isChannelSizeCompatible(redSize, greenSize, blueSize, alphaSize)) + { + glInternalFormat = sizedInternalFormat; + break; + } + } + + return (glInternalFormat != 0) + ? angle::android::GLInternalFormatToNativePixelFormat(glInternalFormat) + : 0; +} + +GLenum GetConfigColorBufferFormat(const egl::Config *config) +{ + GLenum componentType = GL_NONE; + switch (config->colorComponentType) + { + case EGL_COLOR_COMPONENT_TYPE_FIXED_EXT: + componentType = GL_UNSIGNED_NORMALIZED; + break; + case EGL_COLOR_COMPONENT_TYPE_FLOAT_EXT: + componentType = GL_FLOAT; + break; + default: + UNREACHABLE(); + return GL_NONE; + } + + GLenum colorEncoding = GL_LINEAR; + + for (GLenum sizedInternalFormat : GetAllSizedInternalFormats()) + { + const gl::InternalFormat &internalFormat = GetSizedInternalFormatInfo(sizedInternalFormat); + + if (internalFormat.componentType == componentType && + internalFormat.colorEncoding == colorEncoding && + internalFormat.isChannelSizeCompatible(config->redSize, config->greenSize, + config->blueSize, config->alphaSize)) + { + return sizedInternalFormat; + } + } + + // Only expect to get here if there is no color bits in the config + ASSERT(config->redSize == 0 && config->greenSize == 0 && config->blueSize == 0 && + config->alphaSize == 0); + return GL_NONE; +} + +GLenum GetConfigDepthStencilBufferFormat(const egl::Config *config) +{ + GLenum componentType = GL_UNSIGNED_NORMALIZED; + + for (GLenum sizedInternalFormat : GetAllSizedInternalFormats()) + { + const gl::InternalFormat &internalFormat = GetSizedInternalFormatInfo(sizedInternalFormat); + + if (internalFormat.componentType == componentType && + static_cast<EGLint>(internalFormat.depthBits) == config->depthSize && + static_cast<EGLint>(internalFormat.stencilBits) == config->stencilSize) + { + return sizedInternalFormat; + } + } + + // Only expect to get here if there is no depth or stencil bits in the config + ASSERT(config->depthSize == 0 && config->stencilSize == 0); + return GL_NONE; +} + +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::computeBufferRowLength(uint32_t width, uint32_t *resultOut) const +{ + CheckedNumeric<GLuint> checkedWidth(width); + + if (compressed) + { + angle::CheckedNumeric<uint32_t> checkedRowLength = + rx::CheckedRoundUp<uint32_t>(width, compressedBlockWidth); + + return CheckedMathResult(checkedRowLength, resultOut); + } + + return CheckedMathResult(checkedWidth, resultOut); +} + +bool InternalFormat::computeBufferImageHeight(uint32_t height, uint32_t *resultOut) const +{ + CheckedNumeric<GLuint> checkedHeight(height); + + if (compressed) + { + angle::CheckedNumeric<uint32_t> checkedImageHeight = + rx::CheckedRoundUp<uint32_t>(height, compressedBlockHeight); + + return CheckedMathResult(checkedImageHeight, resultOut); + } + + return CheckedMathResult(checkedHeight, resultOut); +} + +bool InternalFormat::computePalettedImageRowPitch(GLsizei width, GLuint *resultOut) const +{ + ASSERT(paletted); + switch (paletteBits) + { + case 4: + *resultOut = (width + 1) / 2; + return true; + case 8: + *resultOut = width; + return true; + default: + UNREACHABLE(); + return false; + } +} + +bool InternalFormat::computeRowPitch(GLenum formatType, + GLsizei width, + GLint alignment, + GLint rowLength, + GLuint *resultOut) const +{ + if (paletted) + { + return computePalettedImageRowPitch(width, resultOut); + } + + // Compressed images do not use pack/unpack parameters (rowLength). + if (compressed) + { + 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 +{ + // Compressed images do not use pack/unpack parameters (imageHeight). + CheckedNumeric<GLuint> pixelsHeight(!compressed && (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); + + if (paletted) + { + ASSERT(!compressed); + + GLuint paletteSize = 1 << paletteBits; + GLuint paletteBytes = paletteSize * pixelBytes; + + GLuint rowPitch; + if (!computePalettedImageRowPitch(size.width, &rowPitch)) + { + return false; + } + + if (size.depth != 1) + { + return false; + } + + CheckedNumeric<GLuint> checkedPaletteBytes(paletteBytes); + CheckedNumeric<GLuint> checkedRowPitch(rowPitch); + + return CheckedMathResult(checkedPaletteBytes + checkedRowPitch * checkedHeight, resultOut); + } + + CheckedNumeric<GLuint> checkedBlockWidth(compressedBlockWidth); + CheckedNumeric<GLuint> checkedBlockHeight(compressedBlockHeight); + GLuint minBlockWidth, minBlockHeight; + std::tie(minBlockWidth, minBlockHeight) = getCompressedImageMinBlocks(); + + ASSERT(compressed); + auto numBlocksWide = (checkedWidth + checkedBlockWidth - 1u) / checkedBlockWidth; + auto numBlocksHigh = (checkedHeight + checkedBlockHeight - 1u) / checkedBlockHeight; + if (numBlocksWide.IsValid() && numBlocksWide.ValueOrDie() < minBlockWidth) + numBlocksWide = minBlockWidth; + if (numBlocksHigh.IsValid() && numBlocksHigh.ValueOrDie() < minBlockHeight) + numBlocksHigh = minBlockHeight; + auto bytes = numBlocksWide * numBlocksHigh * pixelBytes * checkedDepth; + return CheckedMathResult(bytes, resultOut); +} + +std::pair<GLuint, GLuint> InternalFormat::getCompressedImageMinBlocks() const +{ + GLuint minBlockWidth = 0; + GLuint minBlockHeight = 0; + + // Per the specification, a PVRTC block needs information from the 3 nearest blocks. + // GL_IMG_texture_compression_pvrtc specifies the minimum size requirement in pixels, but + // ANGLE's texture tables are written in terms of blocks. The 4BPP formats use 4x4 blocks, and + // the 2BPP formats, 8x4 blocks. Therefore, both kinds of formats require a minimum of 2x2 + // blocks. + switch (internalFormat) + { + case GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG: + case GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG: + case GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG: + case GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG: + case GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT: + case GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT: + case GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT: + case GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT: + minBlockWidth = 2; + minBlockHeight = 2; + break; + + default: + break; + } + + return std::make_pair(minBlockWidth, minBlockHeight); +} + +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; +} + +bool CompressedFormatRequiresWholeImage(GLenum internalFormat) +{ + // List of compressed texture format that require that the sub-image size is equal to texture's + // respective mip level's size + return IsPVRTC1Format(internalFormat); +} + +void MaybeOverrideLuminance(GLenum &format, GLenum &type, GLenum actualFormat, GLenum actualType) +{ + gl::InternalFormat internalFormat = gl::GetInternalFormatInfo(format, type); + if (internalFormat.isLUMA()) + { + // Ensure the format and type are compatible + ASSERT(internalFormat.pixelBytes == + gl::GetInternalFormatInfo(actualFormat, actualType).pixelBytes); + + // For Luminance formats, override with the internal format. Since this is not + // renderable, our pixel pack routines don't handle it correctly. + format = actualFormat; + type = actualType; + } +} + +const FormatSet &GetAllSizedInternalFormats() +{ + static angle::base::NoDestructor<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(); + return ATTRIBUTE_FLOAT; + } +} + +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(); + return angle::FormatID::NONE; + } + 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(); + return angle::FormatID::NONE; + } + 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(); + return angle::FormatID::NONE; + } + 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(); + return angle::FormatID::NONE; + } + 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(); + return angle::FormatID::NONE; + } + 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(); + return angle::FormatID::NONE; + } + 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(); + return angle::FormatID::NONE; + } + case VertexAttribType::HalfFloat: + case VertexAttribType::HalfFloatOES: + 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(); + return angle::FormatID::NONE; + } + 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(); + return angle::FormatID::NONE; + } + 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; + case VertexAttribType::Int1010102: + switch (components) + { + case 3: + if (pureInteger) + return angle::FormatID::X2R10G10B10_SINT_VERTEX; + if (normalized) + return angle::FormatID::X2R10G10B10_SNORM_VERTEX; + return angle::FormatID::X2R10G10B10_SSCALED_VERTEX; + case 4: + if (pureInteger) + return angle::FormatID::A2R10G10B10_SINT_VERTEX; + if (normalized) + return angle::FormatID::A2R10G10B10_SNORM_VERTEX; + return angle::FormatID::A2R10G10B10_SSCALED_VERTEX; + default: + UNREACHABLE(); + return angle::FormatID::NONE; + } + case VertexAttribType::UnsignedInt1010102: + switch (components) + { + case 3: + if (pureInteger) + return angle::FormatID::X2R10G10B10_UINT_VERTEX; + if (normalized) + return angle::FormatID::X2R10G10B10_UNORM_VERTEX; + return angle::FormatID::X2R10G10B10_USCALED_VERTEX; + + case 4: + if (pureInteger) + return angle::FormatID::A2R10G10B10_UINT_VERTEX; + if (normalized) + return angle::FormatID::A2R10G10B10_UNORM_VERTEX; + return angle::FormatID::A2R10G10B10_USCALED_VERTEX; + default: + UNREACHABLE(); + return angle::FormatID::NONE; + } + default: + UNREACHABLE(); + return angle::FormatID::NONE; + } +} + +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; + } + case angle::FormatID::A2R10G10B10_SSCALED_VERTEX: + { + static const VertexFormat format(GL_INT_10_10_10_2_OES, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::A2R10G10B10_USCALED_VERTEX: + { + static const VertexFormat format(GL_UNSIGNED_INT_10_10_10_2_OES, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::A2R10G10B10_SNORM_VERTEX: + { + static const VertexFormat format(GL_INT_10_10_10_2_OES, GL_TRUE, 4, false); + return format; + } + case angle::FormatID::A2R10G10B10_UNORM_VERTEX: + { + static const VertexFormat format(GL_UNSIGNED_INT_10_10_10_2_OES, GL_TRUE, 4, false); + return format; + } + case angle::FormatID::A2R10G10B10_SINT_VERTEX: + { + static const VertexFormat format(GL_INT_10_10_10_2_OES, GL_FALSE, 4, true); + return format; + } + case angle::FormatID::A2R10G10B10_UINT_VERTEX: + { + static const VertexFormat format(GL_UNSIGNED_INT_10_10_10_2_OES, GL_FALSE, 4, true); + return format; + } + case angle::FormatID::X2R10G10B10_SSCALED_VERTEX: + { + static const VertexFormat format(GL_INT_10_10_10_2_OES, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::X2R10G10B10_USCALED_VERTEX: + { + static const VertexFormat format(GL_UNSIGNED_INT_10_10_10_2_OES, GL_FALSE, 4, false); + return format; + } + case angle::FormatID::X2R10G10B10_SNORM_VERTEX: + { + static const VertexFormat format(GL_INT_10_10_10_2_OES, GL_TRUE, 4, false); + return format; + } + case angle::FormatID::X2R10G10B10_UNORM_VERTEX: + { + static const VertexFormat format(GL_UNSIGNED_INT_10_10_10_2_OES, GL_TRUE, 4, false); + return format; + } + case angle::FormatID::X2R10G10B10_SINT_VERTEX: + { + static const VertexFormat format(GL_INT_10_10_10_2_OES, 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: + case angle::FormatID::A2R10G10B10_SSCALED_VERTEX: + case angle::FormatID::A2R10G10B10_USCALED_VERTEX: + case angle::FormatID::A2R10G10B10_SINT_VERTEX: + case angle::FormatID::A2R10G10B10_UINT_VERTEX: + case angle::FormatID::A2R10G10B10_SNORM_VERTEX: + case angle::FormatID::A2R10G10B10_UNORM_VERTEX: + case angle::FormatID::X2R10G10B10_SSCALED_VERTEX: + case angle::FormatID::X2R10G10B10_USCALED_VERTEX: + case angle::FormatID::X2R10G10B10_SINT_VERTEX: + case angle::FormatID::X2R10G10B10_UINT_VERTEX: + case angle::FormatID::X2R10G10B10_SNORM_VERTEX: + case angle::FormatID::X2R10G10B10_UNORM_VERTEX: + 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(); + return 0; + } +} + +angle::FormatID ConvertFormatSignedness(const angle::Format &format) +{ + switch (format.id) + { + // 1 byte signed to unsigned + case angle::FormatID::R8_SINT: + return angle::FormatID::R8_UINT; + case angle::FormatID::R8_SNORM: + return angle::FormatID::R8_UNORM; + case angle::FormatID::R8_SSCALED: + return angle::FormatID::R8_USCALED; + case angle::FormatID::R8G8_SINT: + return angle::FormatID::R8G8_UINT; + case angle::FormatID::R8G8_SNORM: + return angle::FormatID::R8G8_UNORM; + case angle::FormatID::R8G8_SSCALED: + return angle::FormatID::R8G8_USCALED; + case angle::FormatID::R8G8B8_SINT: + return angle::FormatID::R8G8B8_UINT; + case angle::FormatID::R8G8B8_SNORM: + return angle::FormatID::R8G8B8_UNORM; + case angle::FormatID::R8G8B8_SSCALED: + return angle::FormatID::R8G8B8_USCALED; + case angle::FormatID::R8G8B8A8_SINT: + return angle::FormatID::R8G8B8A8_UINT; + case angle::FormatID::R8G8B8A8_SNORM: + return angle::FormatID::R8G8B8A8_UNORM; + case angle::FormatID::R8G8B8A8_SSCALED: + return angle::FormatID::R8G8B8A8_USCALED; + // 1 byte unsigned to signed + case angle::FormatID::R8_UINT: + return angle::FormatID::R8_SINT; + case angle::FormatID::R8_UNORM: + return angle::FormatID::R8_SNORM; + case angle::FormatID::R8_USCALED: + return angle::FormatID::R8_SSCALED; + case angle::FormatID::R8G8_UINT: + return angle::FormatID::R8G8_SINT; + case angle::FormatID::R8G8_UNORM: + return angle::FormatID::R8G8_SNORM; + case angle::FormatID::R8G8_USCALED: + return angle::FormatID::R8G8_SSCALED; + case angle::FormatID::R8G8B8_UINT: + return angle::FormatID::R8G8B8_SINT; + case angle::FormatID::R8G8B8_UNORM: + return angle::FormatID::R8G8B8_SNORM; + case angle::FormatID::R8G8B8_USCALED: + return angle::FormatID::R8G8B8_SSCALED; + case angle::FormatID::R8G8B8A8_UINT: + return angle::FormatID::R8G8B8A8_SINT; + case angle::FormatID::R8G8B8A8_UNORM: + return angle::FormatID::R8G8B8A8_SNORM; + case angle::FormatID::R8G8B8A8_USCALED: + return angle::FormatID::R8G8B8A8_SSCALED; + // 2 byte signed to unsigned + case angle::FormatID::R16_SINT: + return angle::FormatID::R16_UINT; + case angle::FormatID::R16_SNORM: + return angle::FormatID::R16_UNORM; + case angle::FormatID::R16_SSCALED: + return angle::FormatID::R16_USCALED; + case angle::FormatID::R16G16_SINT: + return angle::FormatID::R16G16_UINT; + case angle::FormatID::R16G16_SNORM: + return angle::FormatID::R16G16_UNORM; + case angle::FormatID::R16G16_SSCALED: + return angle::FormatID::R16G16_USCALED; + case angle::FormatID::R16G16B16_SINT: + return angle::FormatID::R16G16B16_UINT; + case angle::FormatID::R16G16B16_SNORM: + return angle::FormatID::R16G16B16_UNORM; + case angle::FormatID::R16G16B16_SSCALED: + return angle::FormatID::R16G16B16_USCALED; + case angle::FormatID::R16G16B16A16_SINT: + return angle::FormatID::R16G16B16A16_UINT; + case angle::FormatID::R16G16B16A16_SNORM: + return angle::FormatID::R16G16B16A16_UNORM; + case angle::FormatID::R16G16B16A16_SSCALED: + return angle::FormatID::R16G16B16A16_USCALED; + // 2 byte unsigned to signed + case angle::FormatID::R16_UINT: + return angle::FormatID::R16_SINT; + case angle::FormatID::R16_UNORM: + return angle::FormatID::R16_SNORM; + case angle::FormatID::R16_USCALED: + return angle::FormatID::R16_SSCALED; + case angle::FormatID::R16G16_UINT: + return angle::FormatID::R16G16_SINT; + case angle::FormatID::R16G16_UNORM: + return angle::FormatID::R16G16_SNORM; + case angle::FormatID::R16G16_USCALED: + return angle::FormatID::R16G16_SSCALED; + case angle::FormatID::R16G16B16_UINT: + return angle::FormatID::R16G16B16_SINT; + case angle::FormatID::R16G16B16_UNORM: + return angle::FormatID::R16G16B16_SNORM; + case angle::FormatID::R16G16B16_USCALED: + return angle::FormatID::R16G16B16_SSCALED; + case angle::FormatID::R16G16B16A16_UINT: + return angle::FormatID::R16G16B16A16_SINT; + case angle::FormatID::R16G16B16A16_UNORM: + return angle::FormatID::R16G16B16A16_SNORM; + case angle::FormatID::R16G16B16A16_USCALED: + return angle::FormatID::R16G16B16A16_SSCALED; + // 4 byte signed to unsigned + case angle::FormatID::R32_SINT: + return angle::FormatID::R32_UINT; + case angle::FormatID::R32_SNORM: + return angle::FormatID::R32_UNORM; + case angle::FormatID::R32_SSCALED: + return angle::FormatID::R32_USCALED; + case angle::FormatID::R32G32_SINT: + return angle::FormatID::R32G32_UINT; + case angle::FormatID::R32G32_SNORM: + return angle::FormatID::R32G32_UNORM; + case angle::FormatID::R32G32_SSCALED: + return angle::FormatID::R32G32_USCALED; + case angle::FormatID::R32G32B32_SINT: + return angle::FormatID::R32G32B32_UINT; + case angle::FormatID::R32G32B32_SNORM: + return angle::FormatID::R32G32B32_UNORM; + case angle::FormatID::R32G32B32_SSCALED: + return angle::FormatID::R32G32B32_USCALED; + case angle::FormatID::R32G32B32A32_SINT: + return angle::FormatID::R32G32B32A32_UINT; + case angle::FormatID::R32G32B32A32_SNORM: + return angle::FormatID::R32G32B32A32_UNORM; + case angle::FormatID::R32G32B32A32_SSCALED: + return angle::FormatID::R32G32B32A32_USCALED; + // 4 byte unsigned to signed + case angle::FormatID::R32_UINT: + return angle::FormatID::R32_SINT; + case angle::FormatID::R32_UNORM: + return angle::FormatID::R32_SNORM; + case angle::FormatID::R32_USCALED: + return angle::FormatID::R32_SSCALED; + case angle::FormatID::R32G32_UINT: + return angle::FormatID::R32G32_SINT; + case angle::FormatID::R32G32_UNORM: + return angle::FormatID::R32G32_SNORM; + case angle::FormatID::R32G32_USCALED: + return angle::FormatID::R32G32_SSCALED; + case angle::FormatID::R32G32B32_UINT: + return angle::FormatID::R32G32B32_SINT; + case angle::FormatID::R32G32B32_UNORM: + return angle::FormatID::R32G32B32_SNORM; + case angle::FormatID::R32G32B32_USCALED: + return angle::FormatID::R32G32B32_SSCALED; + case angle::FormatID::R32G32B32A32_UINT: + return angle::FormatID::R32G32B32A32_SINT; + case angle::FormatID::R32G32B32A32_UNORM: + return angle::FormatID::R32G32B32A32_SNORM; + case angle::FormatID::R32G32B32A32_USCALED: + return angle::FormatID::R32G32B32A32_SSCALED; + // 1010102 signed to unsigned + case angle::FormatID::R10G10B10A2_SINT: + return angle::FormatID::R10G10B10A2_UINT; + case angle::FormatID::R10G10B10A2_SSCALED: + return angle::FormatID::R10G10B10A2_USCALED; + case angle::FormatID::R10G10B10A2_SNORM: + return angle::FormatID::R10G10B10A2_UNORM; + // 1010102 unsigned to signed + case angle::FormatID::R10G10B10A2_UINT: + return angle::FormatID::R10G10B10A2_SINT; + case angle::FormatID::R10G10B10A2_USCALED: + return angle::FormatID::R10G10B10A2_SSCALED; + case angle::FormatID::R10G10B10A2_UNORM: + return angle::FormatID::R10G10B10A2_SNORM; + default: + UNREACHABLE(); + return angle::FormatID::NONE; + } +} + +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 |