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//
// 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 "libANGLE/Context.h"
#include "libANGLE/Framebuffer.h"
using namespace angle;
namespace gl
{
// ES2 requires that format is equal to internal format at all glTex*Image2D entry points and the
// implementation can decide the true, sized, internal format. The ES2FormatMap determines the
// internal format for all valid format and type combinations.
GLenum GetSizedFormatInternal(GLenum format, GLenum type);
namespace
{
using InternalFormatInfoMap =
std::unordered_map<GLenum, std::unordered_map<GLenum, InternalFormat>>;
bool CheckedMathResult(const CheckedNumeric<GLuint> &value, GLuint *resultOut)
{
if (!value.IsValid())
{
return false;
}
else
{
*resultOut = value.ValueOrDie();
return true;
}
}
constexpr uint32_t PackTypeInfo(GLuint bytes, bool specialized)
{
// static_assert within constexpr requires c++17
// static_assert(isPow2(bytes));
return bytes | (rx::Log2(bytes) << 8) | (specialized << 16);
}
} // anonymous namespace
FormatType::FormatType() : format(GL_NONE), type(GL_NONE) {}
FormatType::FormatType(GLenum format_, GLenum type_) : format(format_), type(type_) {}
bool FormatType::operator<(const FormatType &other) const
{
if (format != other.format)
return format < other.format;
return type < other.type;
}
bool operator<(const Type &a, const Type &b)
{
return memcmp(&a, &b, sizeof(Type)) < 0;
}
// Information about internal formats
static bool AlwaysSupported(const Version &, const Extensions &)
{
return true;
}
static bool NeverSupported(const Version &, const Extensions &)
{
return false;
}
template <GLuint minCoreGLMajorVersion, GLuint minCoreGLMinorVersion>
static bool RequireES(const Version &clientVersion, const Extensions &)
{
return clientVersion >= Version(minCoreGLMajorVersion, minCoreGLMinorVersion);
}
// 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;
}
static bool UnsizedHalfFloatOESRGBATextureAttachmentSupport(const Version &clientVersion,
const Extensions &extensions)
{
// dEQP requires ES3 + EXT_color_buffer_half_float for rendering to RGB[A] + HALF_FLOAT_OES
// textures but WebGL allows it with just ES 2.0
return (clientVersion.major >= 3 || extensions.webglCompatibility) &&
extensions.colorBufferHalfFloat;
}
// R8, RG8
static bool SizedRGSupport(const Version &clientVersion, const Extensions &extensions)
{
return clientVersion >= Version(3, 0) || (extensions.textureStorage && extensions.textureRG);
}
// R16F, RG16F with HALF_FLOAT_OES type
static bool SizedHalfFloatOESRGSupport(const Version &clientVersion, const Extensions &extensions)
{
return extensions.textureStorage && extensions.textureHalfFloat && extensions.textureRG;
}
static bool SizedHalfFloatOESRGTextureAttachmentSupport(const Version &clientVersion,
const Extensions &extensions)
{
return SizedHalfFloatOESRGSupport(clientVersion, extensions) && extensions.colorBufferHalfFloat;
}
// R16F, RG16F with either HALF_FLOAT_OES or HALF_FLOAT types
static bool SizedHalfFloatRGSupport(const Version &clientVersion, const Extensions &extensions)
{
// HALF_FLOAT
if (clientVersion >= Version(3, 0))
{
return true;
}
// HALF_FLOAT_OES
else
{
return SizedHalfFloatOESRGSupport(clientVersion, extensions);
}
}
static bool SizedHalfFloatRGTextureAttachmentSupport(const Version &clientVersion,
const Extensions &extensions)
{
// HALF_FLOAT
if (clientVersion >= Version(3, 0))
{
return extensions.colorBufferFloat;
}
// HALF_FLOAT_OES
else
{
return SizedHalfFloatOESRGTextureAttachmentSupport(clientVersion, extensions);
}
}
static bool SizedHalfFloatRGRenderbufferSupport(const Version &clientVersion,
const Extensions &extensions)
{
return (clientVersion >= Version(3, 0) ||
(extensions.textureHalfFloat && extensions.textureRG)) &&
(extensions.colorBufferFloat || extensions.colorBufferHalfFloat);
}
// RGB16F, RGBA16F with HALF_FLOAT_OES type
static bool SizedHalfFloatOESSupport(const Version &clientVersion, const Extensions &extensions)
{
return extensions.textureStorage && extensions.textureHalfFloat;
}
static bool SizedHalfFloatOESTextureAttachmentSupport(const Version &clientVersion,
const Extensions &extensions)
{
return SizedHalfFloatOESSupport(clientVersion, extensions) && extensions.colorBufferHalfFloat;
}
// RGB16F, RGBA16F with either HALF_FLOAT_OES or HALF_FLOAT types
static bool SizedHalfFloatSupport(const Version &clientVersion, const Extensions &extensions)
{
// HALF_FLOAT
if (clientVersion >= Version(3, 0))
{
return true;
}
// HALF_FLOAT_OES
else
{
return SizedHalfFloatOESSupport(clientVersion, extensions);
}
}
static bool SizedHalfFloatFilterSupport(const Version &clientVersion, const Extensions &extensions)
{
// HALF_FLOAT
if (clientVersion >= Version(3, 0))
{
return true;
}
// HALF_FLOAT_OES
else
{
return extensions.textureHalfFloatLinear;
}
}
static bool SizedHalfFloatRGBTextureAttachmentSupport(const Version &clientVersion,
const Extensions &extensions)
{
// HALF_FLOAT
if (clientVersion >= Version(3, 0))
{
// It is unclear how EXT_color_buffer_half_float applies to ES3.0 and above, however,
// dEQP GLES3 es3fFboColorbufferTests.cpp verifies that texture attachment of GL_RGB16F
// is possible, so assume that all GLES implementations support it.
return extensions.colorBufferHalfFloat;
}
// HALF_FLOAT_OES
else
{
return SizedHalfFloatOESTextureAttachmentSupport(clientVersion, extensions);
}
}
static bool SizedHalfFloatRGBRenderbufferSupport(const Version &clientVersion,
const Extensions &extensions)
{
return (clientVersion >= Version(3, 0) || extensions.textureHalfFloat) &&
extensions.colorBufferHalfFloat;
}
static bool SizedHalfFloatRGBATextureAttachmentSupport(const Version &clientVersion,
const Extensions &extensions)
{
// HALF_FLOAT
if (clientVersion >= Version(3, 0))
{
return extensions.colorBufferFloat;
}
// HALF_FLOAT_OES
else
{
return SizedHalfFloatOESTextureAttachmentSupport(clientVersion, extensions);
}
}
static bool SizedHalfFloatRGBARenderbufferSupport(const Version &clientVersion,
const Extensions &extensions)
{
return (clientVersion >= Version(3, 0) || extensions.textureHalfFloat) &&
(extensions.colorBufferFloat || extensions.colorBufferHalfFloat);
}
// R32F, RG32F
static bool SizedFloatRGSupport(const Version &clientVersion, const Extensions &extensions)
{
return clientVersion >= Version(3, 0) ||
(extensions.textureStorage && extensions.textureFloat && extensions.textureRG);
}
// RGB32F
static bool SizedFloatRGBSupport(const Version &clientVersion, const Extensions &extensions)
{
return clientVersion >= Version(3, 0) ||
(extensions.textureStorage && extensions.textureFloat) || extensions.colorBufferFloatRGB;
}
// RGBA32F
static bool SizedFloatRGBASupport(const Version &clientVersion, const Extensions &extensions)
{
return clientVersion >= Version(3, 0) ||
(extensions.textureStorage && extensions.textureFloat) ||
extensions.colorBufferFloatRGBA;
}
static bool SizedFloatRGBARenderableSupport(const Version &clientVersion,
const Extensions &extensions)
{
// This logic is the same for both Renderbuffers and TextureAttachment.
return extensions.colorBufferFloatRGBA || // ES2
extensions.colorBufferFloat; // ES3
}
InternalFormat::InternalFormat()
: internalFormat(GL_NONE),
sized(false),
sizedInternalFormat(GL_NONE),
redBits(0),
greenBits(0),
blueBits(0),
luminanceBits(0),
alphaBits(0),
sharedBits(0),
depthBits(0),
stencilBits(0),
pixelBytes(0),
componentCount(0),
compressed(false),
compressedBlockWidth(0),
compressedBlockHeight(0),
compressedBlockDepth(0),
format(GL_NONE),
type(GL_NONE),
componentType(GL_NONE),
colorEncoding(GL_NONE),
textureSupport(NeverSupported),
filterSupport(NeverSupported),
textureAttachmentSupport(NeverSupported),
renderbufferSupport(NeverSupported)
{}
InternalFormat::InternalFormat(const InternalFormat &other) = default;
bool InternalFormat::isLUMA() const
{
return ((redBits + greenBits + blueBits + depthBits + stencilBits) == 0 &&
(luminanceBits + alphaBits) > 0);
}
GLenum InternalFormat::getReadPixelsFormat(const 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.readFormatBGRA)
{
return GL_RGBA;
}
else
{
return GL_BGRA_EXT;
}
break;
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;
}
else
{
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();
#if !UNREACHABLE_IS_NORETURN
return false;
#endif
}
}
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;
return internalformat;
}
// static
bool Format::EquivalentForBlit(const Format &a, const Format &b)
{
return (EquivalentBlitInternalFormat(a.info->sizedInternalFormat) ==
EquivalentBlitInternalFormat(b.info->sizedInternalFormat));
}
// static
Format Format::Invalid()
{
static Format invalid(GL_NONE, GL_NONE);
return invalid;
}
std::ostream &operator<<(std::ostream &os, const Format &fmt)
{
// TODO(ynovikov): return string representation when available
return FmtHex(os, fmt.info->sizedInternalFormat);
}
bool InternalFormat::operator==(const InternalFormat &other) const
{
// We assume all internal formats are unique if they have the same internal format and type
return internalFormat == other.internalFormat && type == other.type;
}
bool InternalFormat::operator!=(const InternalFormat &other) const
{
return !(*this == other);
}
void InsertFormatInfo(InternalFormatInfoMap *map, const InternalFormat &formatInfo)
{
ASSERT(!formatInfo.sized || (*map).count(formatInfo.internalFormat) == 0);
ASSERT((*map)[formatInfo.internalFormat].count(formatInfo.type) == 0);
(*map)[formatInfo.internalFormat][formatInfo.type] = formatInfo;
}
void AddRGBAFormat(InternalFormatInfoMap *map,
GLenum internalFormat,
bool sized,
GLuint red,
GLuint green,
GLuint blue,
GLuint alpha,
GLuint shared,
GLenum format,
GLenum type,
GLenum componentType,
bool srgb,
InternalFormat::SupportCheckFunction textureSupport,
InternalFormat::SupportCheckFunction filterSupport,
InternalFormat::SupportCheckFunction textureAttachmentSupport,
InternalFormat::SupportCheckFunction renderbufferSupport)
{
InternalFormat formatInfo;
formatInfo.internalFormat = internalFormat;
formatInfo.sized = sized;
formatInfo.sizedInternalFormat =
sized ? internalFormat : GetSizedFormatInternal(internalFormat, type);
formatInfo.redBits = red;
formatInfo.greenBits = green;
formatInfo.blueBits = blue;
formatInfo.alphaBits = alpha;
formatInfo.sharedBits = shared;
formatInfo.pixelBytes = (red + green + blue + alpha + shared) / 8;
formatInfo.componentCount =
((red > 0) ? 1 : 0) + ((green > 0) ? 1 : 0) + ((blue > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0);
formatInfo.format = format;
formatInfo.type = type;
formatInfo.componentType = componentType;
formatInfo.colorEncoding = (srgb ? GL_SRGB : GL_LINEAR);
formatInfo.textureSupport = textureSupport;
formatInfo.filterSupport = filterSupport;
formatInfo.textureAttachmentSupport = textureAttachmentSupport;
formatInfo.renderbufferSupport = renderbufferSupport;
InsertFormatInfo(map, formatInfo);
}
static void AddLUMAFormat(InternalFormatInfoMap *map,
GLenum internalFormat,
bool sized,
GLuint luminance,
GLuint alpha,
GLenum format,
GLenum type,
GLenum componentType,
InternalFormat::SupportCheckFunction textureSupport,
InternalFormat::SupportCheckFunction filterSupport,
InternalFormat::SupportCheckFunction textureAttachmentSupport,
InternalFormat::SupportCheckFunction renderbufferSupport)
{
InternalFormat formatInfo;
formatInfo.internalFormat = internalFormat;
formatInfo.sized = sized;
formatInfo.sizedInternalFormat =
sized ? internalFormat : GetSizedFormatInternal(internalFormat, type);
formatInfo.luminanceBits = luminance;
formatInfo.alphaBits = alpha;
formatInfo.pixelBytes = (luminance + alpha) / 8;
formatInfo.componentCount = ((luminance > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0);
formatInfo.format = format;
formatInfo.type = type;
formatInfo.componentType = componentType;
formatInfo.colorEncoding = GL_LINEAR;
formatInfo.textureSupport = textureSupport;
formatInfo.filterSupport = filterSupport;
formatInfo.textureAttachmentSupport = textureAttachmentSupport;
formatInfo.renderbufferSupport = renderbufferSupport;
InsertFormatInfo(map, formatInfo);
}
void AddDepthStencilFormat(InternalFormatInfoMap *map,
GLenum internalFormat,
bool sized,
GLuint depthBits,
GLuint stencilBits,
GLuint unusedBits,
GLenum format,
GLenum type,
GLenum componentType,
InternalFormat::SupportCheckFunction textureSupport,
InternalFormat::SupportCheckFunction filterSupport,
InternalFormat::SupportCheckFunction textureAttachmentSupport,
InternalFormat::SupportCheckFunction renderbufferSupport)
{
InternalFormat formatInfo;
formatInfo.internalFormat = internalFormat;
formatInfo.sized = sized;
formatInfo.sizedInternalFormat =
sized ? internalFormat : GetSizedFormatInternal(internalFormat, type);
formatInfo.depthBits = depthBits;
formatInfo.stencilBits = stencilBits;
formatInfo.pixelBytes = (depthBits + stencilBits + unusedBits) / 8;
formatInfo.componentCount = ((depthBits > 0) ? 1 : 0) + ((stencilBits > 0) ? 1 : 0);
formatInfo.format = format;
formatInfo.type = type;
formatInfo.componentType = componentType;
formatInfo.colorEncoding = GL_LINEAR;
formatInfo.textureSupport = textureSupport;
formatInfo.filterSupport = filterSupport;
formatInfo.textureAttachmentSupport = textureAttachmentSupport;
formatInfo.renderbufferSupport = renderbufferSupport;
InsertFormatInfo(map, formatInfo);
}
void AddCompressedFormat(InternalFormatInfoMap *map,
GLenum internalFormat,
GLuint compressedBlockWidth,
GLuint compressedBlockHeight,
GLuint compressedBlockDepth,
GLuint compressedBlockSize,
GLuint componentCount,
bool srgb,
InternalFormat::SupportCheckFunction textureSupport,
InternalFormat::SupportCheckFunction filterSupport,
InternalFormat::SupportCheckFunction textureAttachmentSupport,
InternalFormat::SupportCheckFunction renderbufferSupport)
{
InternalFormat formatInfo;
formatInfo.internalFormat = internalFormat;
formatInfo.sized = true;
formatInfo.sizedInternalFormat = internalFormat;
formatInfo.compressedBlockWidth = compressedBlockWidth;
formatInfo.compressedBlockHeight = compressedBlockHeight;
formatInfo.compressedBlockDepth = compressedBlockDepth;
formatInfo.pixelBytes = compressedBlockSize / 8;
formatInfo.componentCount = componentCount;
formatInfo.format = internalFormat;
formatInfo.type = GL_UNSIGNED_BYTE;
formatInfo.componentType = GL_UNSIGNED_NORMALIZED;
formatInfo.colorEncoding = (srgb ? GL_SRGB : GL_LINEAR);
formatInfo.compressed = true;
formatInfo.textureSupport = textureSupport;
formatInfo.filterSupport = filterSupport;
formatInfo.textureAttachmentSupport = textureAttachmentSupport;
formatInfo.renderbufferSupport = renderbufferSupport;
InsertFormatInfo(map, formatInfo);
}
// Notes:
// 1. "Texture supported" includes all the means by which texture can be created, however,
// GL_EXT_texture_storage in ES2 is a special case, when only glTexStorage* is allowed.
// The assumption is that ES2 validation will not check textureSupport for sized formats.
//
// 2. Sized half float types are a combination of GL_HALF_FLOAT and GL_HALF_FLOAT_OES support,
// due to a limitation that only one type for sized formats is allowed.
//
// TODO(ynovikov): http://anglebug.com/2846 Verify support fields of BGRA, depth, stencil
// and compressed formats. Perform texturable check as part of filterable and attachment checks.
static InternalFormatInfoMap BuildInternalFormatInfoMap()
{
InternalFormatInfoMap map;
// From ES 3.0.1 spec, table 3.12
map[GL_NONE][GL_NONE] = InternalFormat();
// clang-format off
// | Internal format |sized| R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddRGBAFormat(&map, GL_R8, true, 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, SizedRGSupport, AlwaysSupported, SizedRGSupport, RequireESOrExt<3, 0, &Extensions::textureRG> );
AddRGBAFormat(&map, GL_R8_SNORM, true, 8, 0, 0, 0, 0, GL_RED, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3, 0>, AlwaysSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RG8, true, 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, SizedRGSupport, AlwaysSupported, SizedRGSupport, RequireESOrExt<3, 0, &Extensions::textureRG> );
AddRGBAFormat(&map, GL_RG8_SNORM, true, 8, 8, 0, 0, 0, GL_RG, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3, 0>, AlwaysSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGB8, true, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureStorage>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorage>, RequireESOrExt<3, 0, &Extensions::rgb8rgba8> );
AddRGBAFormat(&map, GL_RGB8_SNORM, true, 8, 8, 8, 0, 0, GL_RGB, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3, 0>, AlwaysSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGB565, true, 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureStorage>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorage>, RequireES<2, 0> );
AddRGBAFormat(&map, GL_RGBA4, true, 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureStorage>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorage>, RequireES<2, 0> );
AddRGBAFormat(&map, GL_RGB5_A1, true, 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureStorage>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorage>, RequireES<2, 0> );
AddRGBAFormat(&map, GL_RGBA8, true, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureStorage>, AlwaysSupported, RequireESOrExt<3, 0, &Extensions::textureStorage>, RequireESOrExt<3, 0, &Extensions::rgb8rgba8> );
AddRGBAFormat(&map, GL_RGBA8_SNORM, true, 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3, 0>, AlwaysSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGB10_A2, true, 10, 10, 10, 2, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, RequireES<3, 0>, AlwaysSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RGB10_A2UI, true, 10, 10, 10, 2, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_SRGB8, true, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireES<3, 0>, AlwaysSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_SRGB8_ALPHA8, true, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireES<3, 0>, AlwaysSupported, RequireES<3, 0>, RequireESOrExt<3, 0, &Extensions::sRGB> );
AddRGBAFormat(&map, GL_R11F_G11F_B10F, true, 11, 11, 10, 0, 0, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_FLOAT, false, RequireES<3, 0>, AlwaysSupported, RequireExt<&Extensions::colorBufferFloat>, RequireExt<&Extensions::colorBufferFloat> );
AddRGBAFormat(&map, GL_RGB9_E5, true, 9, 9, 9, 0, 5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_FLOAT, false, RequireES<3, 0>, AlwaysSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_R8I, true, 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_R8UI, true, 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_R16I, true, 16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_R16UI, true, 16, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_R32I, true, 32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_R32UI, true, 32, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RG8I, true, 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RG8UI, true, 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RG16I, true, 16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RG16UI, true, 16, 16, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RG32I, true, 32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RG32UI, true, 32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RGB8I, true, 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGB8UI, true, 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGB16I, true, 16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGB16UI, true, 16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGB32I, true, 32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGB32UI, true, 32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGBA8I, true, 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RGBA8UI, true, 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RGBA16I, true, 16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RGBA16UI, true, 16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RGBA32I, true, 32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_RGBA32UI, true, 32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, RequireES<3, 0>, RequireES<3, 0> );
AddRGBAFormat(&map, GL_BGRA8_EXT, true, 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>);
AddRGBAFormat(&map, GL_BGRA4_ANGLEX, true, 4, 4, 4, 4, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>);
AddRGBAFormat(&map, GL_BGR5_A1_ANGLEX, true, 5, 5, 5, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>);
// Special format that is used for D3D textures that are used within ANGLE via the
// EGL_ANGLE_d3d_texture_client_buffer extension. We don't allow uploading texture images with
// this format, but textures in this format can be created from D3D textures, and filtering them
// and rendering to them is allowed.
AddRGBAFormat(&map, GL_BGRA8_SRGB_ANGLEX, true, 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, NeverSupported, AlwaysSupported, AlwaysSupported, AlwaysSupported );
// Special format which is not really supported, so always false for all supports.
AddRGBAFormat(&map, GL_BGRX8_ANGLEX, true, 8, 8, 8, 0, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_BGR565_ANGLEX, true, 5, 6, 5, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported );
// Floating point formats
// | Internal format |sized| R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
// It's not possible to have two entries per sized format.
// E.g. for GL_RG16F, one with GL_HALF_FLOAT type and the other with GL_HALF_FLOAT_OES type.
// So, GL_HALF_FLOAT type formats conditions are merged with GL_HALF_FLOAT_OES type conditions.
AddRGBAFormat(&map, GL_R16F, true, 16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, GL_FLOAT, false, SizedHalfFloatRGSupport, SizedHalfFloatFilterSupport, SizedHalfFloatRGTextureAttachmentSupport, SizedHalfFloatRGRenderbufferSupport );
AddRGBAFormat(&map, GL_RG16F, true, 16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, GL_FLOAT, false, SizedHalfFloatRGSupport, SizedHalfFloatFilterSupport, SizedHalfFloatRGTextureAttachmentSupport, SizedHalfFloatRGRenderbufferSupport );
AddRGBAFormat(&map, GL_RGB16F, true, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, SizedHalfFloatSupport, SizedHalfFloatFilterSupport, SizedHalfFloatRGBTextureAttachmentSupport, SizedHalfFloatRGBRenderbufferSupport );
AddRGBAFormat(&map, GL_RGBA16F, true, 16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, GL_FLOAT, false, SizedHalfFloatSupport, SizedHalfFloatFilterSupport, SizedHalfFloatRGBATextureAttachmentSupport, SizedHalfFloatRGBARenderbufferSupport );
AddRGBAFormat(&map, GL_R32F, true, 32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, SizedFloatRGSupport, RequireExt<&Extensions::textureFloatLinear>, RequireExt<&Extensions::colorBufferFloat>, RequireExt<&Extensions::colorBufferFloat>);
AddRGBAFormat(&map, GL_RG32F, true, 32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, SizedFloatRGSupport, RequireExt<&Extensions::textureFloatLinear>, RequireExt<&Extensions::colorBufferFloat>, RequireExt<&Extensions::colorBufferFloat>);
AddRGBAFormat(&map, GL_RGB32F, true, 32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, SizedFloatRGBSupport, RequireExt<&Extensions::textureFloatLinear>, RequireExt<&Extensions::colorBufferFloatRGB>, NeverSupported );
AddRGBAFormat(&map, GL_RGBA32F, true, 32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, SizedFloatRGBASupport, RequireExt<&Extensions::textureFloatLinear>, SizedFloatRGBARenderableSupport, SizedFloatRGBARenderableSupport );
// ANGLE Depth stencil formats
// | Internal format |sized| D |S | X | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT16, true, 16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, RequireES<1, 0>, RequireESOrExtOrExt<3, 0, &Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, RequireES<1, 0>, RequireES<1, 0> );
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT24, true, 24, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireES<3, 0>, RequireESOrExt<3, 0, &Extensions::depthTextureANGLE>, RequireES<3, 0>, RequireESOrExt<3, 0, &Extensions::depth24OES> );
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT32F, true, 32, 0, 0, GL_DEPTH_COMPONENT, GL_FLOAT, GL_FLOAT, RequireES<3, 0>, RequireESOrExt<3, 0, &Extensions::depthTextureANGLE>, RequireES<3, 0>, RequireES<3, 0> );
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT32_OES, true, 32, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, AlwaysSupported, RequireExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, RequireExtOrExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES, &Extensions::depth32>);
AddDepthStencilFormat(&map, GL_DEPTH24_STENCIL8, true, 24, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_NORMALIZED, RequireESOrExt<3, 0, &Extensions::depthTextureANGLE>, AlwaysSupported, RequireESOrExtOrExt<3, 0, &Extensions::depthTextureANGLE, &Extensions::packedDepthStencil>, RequireESOrExtOrExt<3, 0, &Extensions::depthTextureANGLE, &Extensions::packedDepthStencil> );
AddDepthStencilFormat(&map, GL_DEPTH32F_STENCIL8, true, 32, 8, 24, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_FLOAT, RequireES<3, 0>, AlwaysSupported, RequireES<3, 0>, RequireES<3, 0> );
// STENCIL_INDEX8 is special-cased, see around the bottom of the list.
// Luminance alpha formats
// | Internal format |sized| L | A | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddLUMAFormat(&map, GL_ALPHA8_EXT, true, 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, AlwaysSupported, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_LUMINANCE8_EXT, true, 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, AlwaysSupported, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_LUMINANCE8_ALPHA8_EXT, true, 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, AlwaysSupported, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_ALPHA16F_EXT, true, 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_LUMINANCE16F_EXT, true, 16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_LUMINANCE_ALPHA16F_EXT, true, 16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_ALPHA32F_EXT, true, 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_LUMINANCE32F_EXT, true, 32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_LUMINANCE_ALPHA32F_EXT, true, 32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported);
// Compressed formats, From ES 3.0.1 spec, table 3.16
// | Internal format |W |H |D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddCompressedFormat(&map, GL_COMPRESSED_R11_EAC, 4, 4, 1, 64, 1, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedEACR11UnsignedTexture>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SIGNED_R11_EAC, 4, 4, 1, 64, 1, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedEACR11SignedTexture>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RG11_EAC, 4, 4, 1, 128, 2, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedEACRG11UnsignedTexture>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SIGNED_RG11_EAC, 4, 4, 1, 128, 2, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedEACRG11SignedTexture>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGB8_ETC2, 4, 4, 1, 64, 3, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedETC2RGB8Texture>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ETC2, 4, 4, 1, 64, 3, true, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedETC2sRGB8Texture>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, 4, 4, 1, 64, 3, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedETC2PunchthroughARGB8Texture>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, 4, 4, 1, 64, 3, true, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedETC2PunchthroughAsRGB8AlphaTexture>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA8_ETC2_EAC, 4, 4, 1, 128, 4, false, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedETC2RGBA8Texture>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, 4, 4, 1, 128, 4, true, RequireESOrExtOrExt<3, 0, &Extensions::compressedTextureETC, &Extensions::compressedETC2sRGB8Alpha8Texture>, AlwaysSupported, NeverSupported, NeverSupported);
// From GL_EXT_texture_compression_dxt1
// | Internal format |W |H |D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddCompressedFormat(&map, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::textureCompressionDXT1>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 4, 4, 1, 64, 4, false, RequireExt<&Extensions::textureCompressionDXT1>, AlwaysSupported, NeverSupported, NeverSupported);
// From GL_ANGLE_texture_compression_dxt3
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionDXT3>, AlwaysSupported, NeverSupported, NeverSupported);
// From GL_ANGLE_texture_compression_dxt5
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionDXT5>, AlwaysSupported, NeverSupported, NeverSupported);
// From GL_OES_compressed_ETC1_RGB8_texture
AddCompressedFormat(&map, GL_ETC1_RGB8_OES, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::compressedETC1RGB8Texture>, AlwaysSupported, NeverSupported, NeverSupported);
// From GL_EXT_texture_compression_s3tc_srgb
// | Internal format |W |H |D | BS |CC|SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, 4, 4, 1, 64, 3, true, RequireExt<&Extensions::textureCompressionS3TCsRGB>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, 4, 4, 1, 64, 4, true, RequireExt<&Extensions::textureCompressionS3TCsRGB>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, 4, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionS3TCsRGB>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, 4, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionS3TCsRGB>, AlwaysSupported, NeverSupported, NeverSupported);
// From GL_KHR_texture_compression_astc_ldr and KHR_texture_compression_astc_hdr and GL_OES_texture_compression_astc
// | Internal format | W | H |D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x4_KHR, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x4_KHR, 5, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x5_KHR, 5, 5, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x5_KHR, 6, 5, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x6_KHR, 6, 6, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_8x5_KHR, 8, 5, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_8x6_KHR, 8, 6, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_8x8_KHR, 8, 8, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x5_KHR, 10, 5, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x6_KHR, 10, 6, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x8_KHR, 10, 8, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x10_KHR, 10, 10, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_12x10_KHR, 12, 10, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_12x12_KHR, 12, 12, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR, 4, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR, 5, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR, 5, 5, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR, 6, 5, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR, 6, 6, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR, 8, 5, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR, 8, 6, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR, 8, 8, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR, 10, 5, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR, 10, 6, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR, 10, 8, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR, 10, 10, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR, 12, 10, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR, 12, 12, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCLDRKHR>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_3x3x3_OES, 3, 3, 3, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x3x3_OES, 4, 3, 3, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x4x3_OES, 4, 4, 3, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x4x4_OES, 4, 4, 4, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x4x4_OES, 5, 4, 4, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x5x4_OES, 5, 5, 4, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x5x5_OES, 5, 5, 5, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x5x5_OES, 6, 5, 5, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x6x5_OES, 6, 6, 5, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x6x6_OES, 6, 6, 6, 128, 4, false, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES, 3, 3, 3, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES, 4, 3, 3, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES, 4, 4, 3, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES, 4, 4, 4, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES, 5, 4, 4, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES, 5, 5, 4, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES, 5, 5, 5, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES, 6, 5, 5, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES, 6, 6, 5, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES, 6, 6, 6, 128, 4, true, RequireExt<&Extensions::textureCompressionASTCOES>, AlwaysSupported, NeverSupported, NeverSupported);
// From EXT_texture_compression_bptc
// | Internal format | W | H |D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_BPTC_UNORM_EXT, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionBPTC>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT, 4, 4, 1, 128, 4, true, RequireExt<&Extensions::textureCompressionBPTC>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionBPTC>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT, 4, 4, 1, 128, 4, false, RequireExt<&Extensions::textureCompressionBPTC>, AlwaysSupported, NeverSupported, NeverSupported);
// From GL_IMG_texture_compression_pvrtc
// | Internal format | W | H | D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddCompressedFormat(&map, GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, 1, 1, 1, 1, 3, false, RequireExt<&Extensions::compressedTexturePVRTC>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, 1, 1, 1, 1, 3, false, RequireExt<&Extensions::compressedTexturePVRTC>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, 1, 1, 1, 1, 4, false, RequireExt<&Extensions::compressedTexturePVRTC>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, 1, 1, 1, 1, 4, false, RequireExt<&Extensions::compressedTexturePVRTC>, AlwaysSupported, NeverSupported, NeverSupported);
// From GL_EXT_pvrtc_sRGB
// | Internal format | W | H | D | BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT, 1, 1, 1, 1, 3, true, RequireExt<&Extensions::compressedTexturePVRTCsRGB>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT, 1, 1, 1, 1, 3, true, RequireExt<&Extensions::compressedTexturePVRTCsRGB>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT, 1, 1, 1, 1, 4, true, RequireExt<&Extensions::compressedTexturePVRTCsRGB>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT, 1, 1, 1, 1, 4, true, RequireExt<&Extensions::compressedTexturePVRTCsRGB>, AlwaysSupported, NeverSupported, NeverSupported);
// For STENCIL_INDEX8 we chose a normalized component type for the following reasons:
// - Multisampled buffer are disallowed for non-normalized integer component types and we want to support it for STENCIL_INDEX8
// - All other stencil formats (all depth-stencil) are either float or normalized
// - It affects only validation of internalformat in RenderbufferStorageMultisample.
// | Internal format |sized|D |S |X | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddDepthStencilFormat(&map, GL_STENCIL_INDEX8, true, 0, 8, 0, GL_STENCIL, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<1, 0>, NeverSupported, RequireES<1, 0>, RequireES<1, 0>);
// From GL_ANGLE_lossy_etc_decode
// | Internal format |W |H |D |BS |CC| SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddCompressedFormat(&map, GL_ETC1_RGB8_LOSSY_DECODE_ANGLE, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::lossyETCDecode>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::lossyETCDecode>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 1, 64, 3, true, RequireExt<&Extensions::lossyETCDecode>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 1, 64, 3, false, RequireExt<&Extensions::lossyETCDecode>, AlwaysSupported, NeverSupported, NeverSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 1, 64, 3, true, RequireExt<&Extensions::lossyETCDecode>, AlwaysSupported, NeverSupported, NeverSupported);
// From GL_EXT_texture_norm16
// | Internal format |sized| R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddRGBAFormat(&map, GL_R16_EXT, true, 16, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, RequireExt<&Extensions::textureNorm16>, RequireExt<&Extensions::textureNorm16>);
AddRGBAFormat(&map, GL_R16_SNORM_EXT, true, 16, 0, 0, 0, 0, GL_RED, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RG16_EXT, true, 16, 16, 0, 0, 0, GL_RG, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, RequireExt<&Extensions::textureNorm16>, RequireExt<&Extensions::textureNorm16>);
AddRGBAFormat(&map, GL_RG16_SNORM_EXT, true, 16, 16, 0, 0, 0, GL_RG, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGB16_EXT, true, 16, 16, 16, 0, 0, GL_RGB, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGB16_SNORM_EXT, true, 16, 16, 16, 0, 0, GL_RGB, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGBA16_EXT, true, 16, 16, 16, 16, 0, GL_RGBA, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, RequireExt<&Extensions::textureNorm16>, RequireExt<&Extensions::textureNorm16>);
AddRGBAFormat(&map, GL_RGBA16_SNORM_EXT, true, 16, 16, 16, 16, 0, GL_RGBA, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, NeverSupported, NeverSupported );
// Unsized formats
// | Internal format |sized | R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddRGBAFormat(&map, GL_RED, false, 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureRG>, AlwaysSupported, RequireExt<&Extensions::textureRG>, NeverSupported);
AddRGBAFormat(&map, GL_RED, false, 8, 0, 0, 0, 0, GL_RED, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RG, false, 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureRG>, AlwaysSupported, RequireExt<&Extensions::textureRG>, NeverSupported);
AddRGBAFormat(&map, GL_RG, false, 8, 8, 0, 0, 0, GL_RG, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB, false, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireES<2, 0>, NeverSupported);
AddRGBAFormat(&map, GL_RGB, false, 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireES<2, 0>, NeverSupported);
AddRGBAFormat(&map, GL_RGB, false, 8, 8, 8, 0, 0, GL_RGB, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB, false, 10, 10, 10, 0, 0, GL_RGB, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormat2101010REV>, AlwaysSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGBA, false, 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireES<2, 0>, NeverSupported);
AddRGBAFormat(&map, GL_RGBA, false, 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireES<2, 0>, NeverSupported);
AddRGBAFormat(&map, GL_RGBA, false, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, RequireES<2, 0>, NeverSupported);
AddRGBAFormat(&map, GL_RGBA, false, 16, 16, 16, 16, 0, GL_RGBA, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, AlwaysSupported, RequireExt<&Extensions::textureNorm16>, NeverSupported);
AddRGBAFormat(&map, GL_RGBA, false, 10, 10, 10, 2, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormat2101010REV>, AlwaysSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGBA, false, 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_SRGB, false, 8, 8, 8, 0, 0, GL_SRGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireExt<&Extensions::sRGB>, AlwaysSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_SRGB_ALPHA_EXT, false, 8, 8, 8, 8, 0, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireExt<&Extensions::sRGB>, AlwaysSupported, RequireExt<&Extensions::sRGB>, NeverSupported);
AddRGBAFormat(&map, GL_BGRA_EXT, false, 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported, RequireExt<&Extensions::textureFormatBGRA8888>, NeverSupported);
// Unsized integer formats
// |Internal format |sized | R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddRGBAFormat(&map, GL_RED_INTEGER, false, 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RED_INTEGER, false, 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RED_INTEGER, false, 16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RED_INTEGER, false, 16, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RED_INTEGER, false, 32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RED_INTEGER, false, 32, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RG_INTEGER, false, 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RG_INTEGER, false, 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RG_INTEGER, false, 16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RG_INTEGER, false, 16, 16, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RG_INTEGER, false, 32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RG_INTEGER, false, 32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB_INTEGER, false, 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB_INTEGER, false, 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB_INTEGER, false, 16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB_INTEGER, false, 16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB_INTEGER, false, 32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB_INTEGER, false, 32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 10, 10, 10, 2, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_INT, false, RequireES<3, 0>, NeverSupported, NeverSupported, NeverSupported);
// Unsized floating point formats
// |Internal format |sized | R | G | B | A |S | Format | Type | Comp | SRGB | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddRGBAFormat(&map, GL_RED, false, 16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RG, false, 16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB, false, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGBA, false, 16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RED, false, 16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT_OES, GL_FLOAT, false, RequireExtAndExt<&Extensions::textureHalfFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureHalfFloatLinear>, AlwaysSupported, NeverSupported);
AddRGBAFormat(&map, GL_RG, false, 16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT_OES, GL_FLOAT, false, RequireExtAndExt<&Extensions::textureHalfFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureHalfFloatLinear>, AlwaysSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB, false, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT_OES, GL_FLOAT, false, RequireExt<&Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, UnsizedHalfFloatOESRGBATextureAttachmentSupport, NeverSupported);
AddRGBAFormat(&map, GL_RGBA, false, 16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT_OES, GL_FLOAT, false, RequireExt<&Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, UnsizedHalfFloatOESRGBATextureAttachmentSupport, NeverSupported);
AddRGBAFormat(&map, GL_RED, false, 32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, RequireExtAndExt<&Extensions::textureFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureFloatLinear>, AlwaysSupported, NeverSupported);
AddRGBAFormat(&map, GL_RG, false, 32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, RequireExtAndExt<&Extensions::textureFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureFloatLinear>, AlwaysSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB, false, 32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, RequireExt<&Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB, false, 9, 9, 9, 0, 5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGB, false, 11, 11, 10, 0, 0, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported, NeverSupported);
AddRGBAFormat(&map, GL_RGBA, false, 32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, RequireExt<&Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported);
// Unsized luminance alpha formats
// | Internal format |sized | L | A | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddLUMAFormat(&map, GL_ALPHA, false, 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_LUMINANCE, false, 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_LUMINANCE_ALPHA, false, 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_ALPHA, false, 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExt<&Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_LUMINANCE, false, 16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExt<&Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_LUMINANCE_ALPHA, false, 16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExt<&Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_ALPHA, false, 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, RequireExt<&Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_LUMINANCE, false, 32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, RequireExt<&Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported);
AddLUMAFormat(&map, GL_LUMINANCE_ALPHA, false, 32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, RequireExt<&Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear>, NeverSupported, NeverSupported);
// Unsized depth stencil formats
// | Internal format |sized | D |S | X | Format | Type | Component type | Texture supported | Filterable | Texture attachment | Renderbuffer |
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT, false, 16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, RequireES<1, 0>, AlwaysSupported, RequireExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES>, RequireExtOrExt<&Extensions::depthTextureANGLE, &Extensions::depthTextureOES> );
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT, false, 24, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireES<1, 0>, AlwaysSupported, 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> );
AddDepthStencilFormat(&map, GL_DEPTH_STENCIL, false, 24, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_NORMALIZED, RequireESOrExt<3, 0, &Extensions::packedDepthStencil>, AlwaysSupported, RequireExtAndExt<&Extensions::packedDepthStencil, &Extensions::depthTextureANGLE>, RequireExtAndExt<&Extensions::packedDepthStencil, &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::packedDepthStencil>, AlwaysSupported, RequireExt<&Extensions::packedDepthStencil>, RequireExt<&Extensions::packedDepthStencil> );
AddDepthStencilFormat(&map, GL_STENCIL, false, 0, 8, 0, GL_STENCIL, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<1, 0>, NeverSupported , RequireES<1, 0>, RequireES<1, 0> );
// clang-format on
return map;
}
static const InternalFormatInfoMap &GetInternalFormatMap()
{
static const angle::base::NoDestructor<InternalFormatInfoMap> formatMap(
BuildInternalFormatInfoMap());
return *formatMap;
}
static FormatSet BuildAllSizedInternalFormatSet()
{
FormatSet result;
for (const auto &internalFormat : GetInternalFormatMap())
{
for (const auto &type : internalFormat.second)
{
if (type.second.sized)
{
// TODO(jmadill): Fix this hack.
if (internalFormat.first == GL_BGR565_ANGLEX)
continue;
result.insert(internalFormat.first);
}
}
}
return result;
}
uint32_t GetPackedTypeInfo(GLenum type)
{
switch (type)
{
case GL_UNSIGNED_BYTE:
case GL_BYTE:
{
static constexpr uint32_t kPacked = PackTypeInfo(1, false);
return kPacked;
}
case GL_UNSIGNED_SHORT:
case GL_SHORT:
case GL_HALF_FLOAT:
case GL_HALF_FLOAT_OES:
{
static constexpr uint32_t kPacked = PackTypeInfo(2, false);
return kPacked;
}
case GL_UNSIGNED_INT:
case GL_INT:
case GL_FLOAT:
{
static constexpr uint32_t kPacked = PackTypeInfo(4, false);
return kPacked;
}
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_SHORT_4_4_4_4:
case GL_UNSIGNED_SHORT_5_5_5_1:
case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT:
case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT:
{
static constexpr uint32_t kPacked = PackTypeInfo(2, true);
return kPacked;
}
case GL_UNSIGNED_INT_2_10_10_10_REV:
case GL_UNSIGNED_INT_24_8:
case GL_UNSIGNED_INT_10F_11F_11F_REV:
case GL_UNSIGNED_INT_5_9_9_9_REV:
{
ASSERT(GL_UNSIGNED_INT_24_8_OES == GL_UNSIGNED_INT_24_8);
static constexpr uint32_t kPacked = PackTypeInfo(4, true);
return kPacked;
}
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
{
static constexpr uint32_t kPacked = PackTypeInfo(8, true);
return kPacked;
}
default:
{
return 0;
}
}
}
const InternalFormat &GetSizedInternalFormatInfo(GLenum internalFormat)
{
static const InternalFormat defaultInternalFormat;
const InternalFormatInfoMap &formatMap = GetInternalFormatMap();
auto iter = formatMap.find(internalFormat);
// Sized internal formats only have one type per entry
if (iter == formatMap.end() || iter->second.size() != 1)
{
return defaultInternalFormat;
}
const InternalFormat &internalFormatInfo = iter->second.begin()->second;
if (!internalFormatInfo.sized)
{
return defaultInternalFormat;
}
return internalFormatInfo;
}
const InternalFormat &GetInternalFormatInfo(GLenum internalFormat, GLenum type)
{
static const InternalFormat defaultInternalFormat;
const InternalFormatInfoMap &formatMap = GetInternalFormatMap();
auto internalFormatIter = formatMap.find(internalFormat);
if (internalFormatIter == formatMap.end())
{
return defaultInternalFormat;
}
// If the internal format is sized, simply return it without the type check.
if (internalFormatIter->second.size() == 1 && internalFormatIter->second.begin()->second.sized)
{
return internalFormatIter->second.begin()->second;
}
auto typeIter = internalFormatIter->second.find(type);
if (typeIter == internalFormatIter->second.end())
{
return defaultInternalFormat;
}
return typeIter->second;
}
GLuint InternalFormat::computePixelBytes(GLenum formatType) const
{
const auto &typeInfo = GetTypeInfo(formatType);
GLuint components = typeInfo.specialInterpretation ? 1u : componentCount;
return components * typeInfo.bytes;
}
bool InternalFormat::computeRowPitch(GLenum formatType,
GLsizei width,
GLint alignment,
GLint rowLength,
GLuint *resultOut) const
{
// Compressed images do not use pack/unpack parameters.
if (compressed)
{
ASSERT(rowLength == 0);
return computeCompressedImageSize(Extents(width, 1, 1), resultOut);
}
CheckedNumeric<GLuint> checkedWidth(rowLength > 0 ? rowLength : width);
CheckedNumeric<GLuint> checkedRowBytes = checkedWidth * computePixelBytes(formatType);
ASSERT(alignment > 0 && isPow2(alignment));
CheckedNumeric<GLuint> checkedAlignment(alignment);
auto aligned = rx::roundUp(checkedRowBytes, checkedAlignment);
return CheckedMathResult(aligned, resultOut);
}
bool InternalFormat::computeDepthPitch(GLsizei height,
GLint imageHeight,
GLuint rowPitch,
GLuint *resultOut) const
{
CheckedNumeric<GLuint> pixelsHeight(imageHeight > 0 ? static_cast<GLuint>(imageHeight)
: static_cast<GLuint>(height));
CheckedNumeric<GLuint> rowCount;
if (compressed)
{
CheckedNumeric<GLuint> checkedBlockHeight(compressedBlockHeight);
rowCount = (pixelsHeight + checkedBlockHeight - 1u) / checkedBlockHeight;
}
else
{
rowCount = pixelsHeight;
}
CheckedNumeric<GLuint> checkedRowPitch(rowPitch);
return CheckedMathResult(checkedRowPitch * rowCount, resultOut);
}
bool InternalFormat::computeDepthPitch(GLenum formatType,
GLsizei width,
GLsizei height,
GLint alignment,
GLint rowLength,
GLint imageHeight,
GLuint *resultOut) const
{
GLuint rowPitch = 0;
if (!computeRowPitch(formatType, width, alignment, rowLength, &rowPitch))
{
return false;
}
return computeDepthPitch(height, imageHeight, rowPitch, resultOut);
}
bool InternalFormat::computeCompressedImageSize(const Extents &size, GLuint *resultOut) const
{
CheckedNumeric<GLuint> checkedWidth(size.width);
CheckedNumeric<GLuint> checkedHeight(size.height);
CheckedNumeric<GLuint> checkedDepth(size.depth);
CheckedNumeric<GLuint> checkedBlockWidth(compressedBlockWidth);
CheckedNumeric<GLuint> checkedBlockHeight(compressedBlockHeight);
ASSERT(compressed);
auto numBlocksWide = (checkedWidth + checkedBlockWidth - 1u) / checkedBlockWidth;
auto numBlocksHigh = (checkedHeight + checkedBlockHeight - 1u) / checkedBlockHeight;
auto bytes = numBlocksWide * numBlocksHigh * pixelBytes * checkedDepth;
return CheckedMathResult(bytes, resultOut);
}
bool InternalFormat::computeSkipBytes(GLenum formatType,
GLuint rowPitch,
GLuint depthPitch,
const PixelStoreStateBase &state,
bool is3D,
GLuint *resultOut) const
{
CheckedNumeric<GLuint> checkedRowPitch(rowPitch);
CheckedNumeric<GLuint> checkedDepthPitch(depthPitch);
CheckedNumeric<GLuint> checkedSkipImages(static_cast<GLuint>(state.skipImages));
CheckedNumeric<GLuint> checkedSkipRows(static_cast<GLuint>(state.skipRows));
CheckedNumeric<GLuint> checkedSkipPixels(static_cast<GLuint>(state.skipPixels));
CheckedNumeric<GLuint> checkedPixelBytes(computePixelBytes(formatType));
auto checkedSkipImagesBytes = checkedSkipImages * checkedDepthPitch;
if (!is3D)
{
checkedSkipImagesBytes = 0;
}
auto skipBytes = checkedSkipImagesBytes + checkedSkipRows * checkedRowPitch +
checkedSkipPixels * checkedPixelBytes;
return CheckedMathResult(skipBytes, resultOut);
}
bool InternalFormat::computePackUnpackEndByte(GLenum formatType,
const Extents &size,
const PixelStoreStateBase &state,
bool is3D,
GLuint *resultOut) const
{
GLuint rowPitch = 0;
if (!computeRowPitch(formatType, size.width, state.alignment, state.rowLength, &rowPitch))
{
return false;
}
GLuint depthPitch = 0;
if (is3D && !computeDepthPitch(size.height, state.imageHeight, rowPitch, &depthPitch))
{
return false;
}
CheckedNumeric<GLuint> checkedCopyBytes(0);
if (compressed)
{
GLuint copyBytes = 0;
if (!computeCompressedImageSize(size, &copyBytes))
{
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
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:
return true;
default:
return false;
}
}
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();
#if !UNREACHABLE_IS_NORETURN
return ATTRIBUTE_FLOAT;
#endif
}
}
angle::FormatID GetVertexFormatID(VertexAttribType type,
GLboolean normalized,
GLuint components,
bool pureInteger)
{
switch (type)
{
case VertexAttribType::Byte:
switch (components)
{
case 1:
if (pureInteger)
return angle::FormatID::R8_SINT;
if (normalized)
return angle::FormatID::R8_SNORM;
return angle::FormatID::R8_SSCALED;
case 2:
if (pureInteger)
return angle::FormatID::R8G8_SINT;
if (normalized)
return angle::FormatID::R8G8_SNORM;
return angle::FormatID::R8G8_SSCALED;
case 3:
if (pureInteger)
return angle::FormatID::R8G8B8_SINT;
if (normalized)
return angle::FormatID::R8G8B8_SNORM;
return angle::FormatID::R8G8B8_SSCALED;
case 4:
if (pureInteger)
return angle::FormatID::R8G8B8A8_SINT;
if (normalized)
return angle::FormatID::R8G8B8A8_SNORM;
return angle::FormatID::R8G8B8A8_SSCALED;
default:
UNREACHABLE();
#if !UNREACHABLE_IS_NORETURN
return angle::FormatID::NONE;
#endif
}
case VertexAttribType::UnsignedByte:
switch (components)
{
case 1:
if (pureInteger)
return angle::FormatID::R8_UINT;
if (normalized)
return angle::FormatID::R8_UNORM;
return angle::FormatID::R8_USCALED;
case 2:
if (pureInteger)
return angle::FormatID::R8G8_UINT;
if (normalized)
return angle::FormatID::R8G8_UNORM;
return angle::FormatID::R8G8_USCALED;
case 3:
if (pureInteger)
return angle::FormatID::R8G8B8_UINT;
if (normalized)
return angle::FormatID::R8G8B8_UNORM;
return angle::FormatID::R8G8B8_USCALED;
case 4:
if (pureInteger)
return angle::FormatID::R8G8B8A8_UINT;
if (normalized)
return angle::FormatID::R8G8B8A8_UNORM;
return angle::FormatID::R8G8B8A8_USCALED;
default:
UNREACHABLE();
#if !UNREACHABLE_IS_NORETURN
return angle::FormatID::NONE;
#endif
}
case VertexAttribType::Short:
switch (components)
{
case 1:
if (pureInteger)
return angle::FormatID::R16_SINT;
if (normalized)
return angle::FormatID::R16_SNORM;
return angle::FormatID::R16_SSCALED;
case 2:
if (pureInteger)
return angle::FormatID::R16G16_SINT;
if (normalized)
return angle::FormatID::R16G16_SNORM;
return angle::FormatID::R16G16_SSCALED;
case 3:
if (pureInteger)
return angle::FormatID::R16G16B16_SINT;
if (normalized)
return angle::FormatID::R16G16B16_SNORM;
return angle::FormatID::R16G16B16_SSCALED;
case 4:
if (pureInteger)
return angle::FormatID::R16G16B16A16_SINT;
if (normalized)
return angle::FormatID::R16G16B16A16_SNORM;
return angle::FormatID::R16G16B16A16_SSCALED;
default:
UNREACHABLE();
#if !UNREACHABLE_IS_NORETURN
return angle::FormatID::NONE;
#endif
}
case VertexAttribType::UnsignedShort:
switch (components)
{
case 1:
if (pureInteger)
return angle::FormatID::R16_UINT;
if (normalized)
return angle::FormatID::R16_UNORM;
return angle::FormatID::R16_USCALED;
case 2:
if (pureInteger)
return angle::FormatID::R16G16_UINT;
if (normalized)
return angle::FormatID::R16G16_UNORM;
return angle::FormatID::R16G16_USCALED;
case 3:
if (pureInteger)
return angle::FormatID::R16G16B16_UINT;
if (normalized)
return angle::FormatID::R16G16B16_UNORM;
return angle::FormatID::R16G16B16_USCALED;
case 4:
if (pureInteger)
return angle::FormatID::R16G16B16A16_UINT;
if (normalized)
return angle::FormatID::R16G16B16A16_UNORM;
return angle::FormatID::R16G16B16A16_USCALED;
default:
UNREACHABLE();
#if !UNREACHABLE_IS_NORETURN
return angle::FormatID::NONE;
#endif
}
case VertexAttribType::Int:
switch (components)
{
case 1:
if (pureInteger)
return angle::FormatID::R32_SINT;
if (normalized)
return angle::FormatID::R32_SNORM;
return angle::FormatID::R32_SSCALED;
case 2:
if (pureInteger)
return angle::FormatID::R32G32_SINT;
if (normalized)
return angle::FormatID::R32G32_SNORM;
return angle::FormatID::R32G32_SSCALED;
case 3:
if (pureInteger)
return angle::FormatID::R32G32B32_SINT;
if (normalized)
return angle::FormatID::R32G32B32_SNORM;
return angle::FormatID::R32G32B32_SSCALED;
case 4:
if (pureInteger)
return angle::FormatID::R32G32B32A32_SINT;
if (normalized)
return angle::FormatID::R32G32B32A32_SNORM;
return angle::FormatID::R32G32B32A32_SSCALED;
default:
UNREACHABLE();
#if !UNREACHABLE_IS_NORETURN
return angle::FormatID::NONE;
#endif
}
case VertexAttribType::UnsignedInt:
switch (components)
{
case 1:
if (pureInteger)
return angle::FormatID::R32_UINT;
if (normalized)
return angle::FormatID::R32_UNORM;
return angle::FormatID::R32_USCALED;
case 2:
if (pureInteger)
return angle::FormatID::R32G32_UINT;
if (normalized)
return angle::FormatID::R32G32_UNORM;
return angle::FormatID::R32G32_USCALED;
case 3:
if (pureInteger)
return angle::FormatID::R32G32B32_UINT;
if (normalized)
return angle::FormatID::R32G32B32_UNORM;
return angle::FormatID::R32G32B32_USCALED;
case 4:
if (pureInteger)
return angle::FormatID::R32G32B32A32_UINT;
if (normalized)
return angle::FormatID::R32G32B32A32_UNORM;
return angle::FormatID::R32G32B32A32_USCALED;
default:
UNREACHABLE();
#if !UNREACHABLE_IS_NORETURN
return angle::FormatID::NONE;
#endif
}
case VertexAttribType::Float:
switch (components)
{
case 1:
return angle::FormatID::R32_FLOAT;
case 2:
return angle::FormatID::R32G32_FLOAT;
case 3:
return angle::FormatID::R32G32B32_FLOAT;
case 4:
return angle::FormatID::R32G32B32A32_FLOAT;
default:
UNREACHABLE();
#if !UNREACHABLE_IS_NORETURN
return angle::FormatID::NONE;
#endif
}
case VertexAttribType::HalfFloat:
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();
#if !UNREACHABLE_IS_NORETURN
return angle::FormatID::NONE;
#endif
}
case VertexAttribType::Fixed:
switch (components)
{
case 1:
return angle::FormatID::R32_FIXED;
case 2:
return angle::FormatID::R32G32_FIXED;
case 3:
return angle::FormatID::R32G32B32_FIXED;
case 4:
return angle::FormatID::R32G32B32A32_FIXED;
default:
UNREACHABLE();
#if !UNREACHABLE_IS_NORETURN
return angle::FormatID::NONE;
#endif
}
case VertexAttribType::Int2101010:
if (pureInteger)
return angle::FormatID::R10G10B10A2_SINT;
if (normalized)
return angle::FormatID::R10G10B10A2_SNORM;
return angle::FormatID::R10G10B10A2_SSCALED;
case VertexAttribType::UnsignedInt2101010:
if (pureInteger)
return angle::FormatID::R10G10B10A2_UINT;
if (normalized)
return angle::FormatID::R10G10B10A2_UNORM;
return angle::FormatID::R10G10B10A2_USCALED;
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();
#if !UNREACHABLE_IS_NORETURN
return angle::FormatID::NONE;
#endif
}
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();
#if !UNREACHABLE_IS_NORETURN
return angle::FormatID::NONE;
#endif
}
default:
UNREACHABLE();
#if !UNREACHABLE_IS_NORETURN
return angle::FormatID::NONE;
#endif
}
}
angle::FormatID GetVertexFormatID(const VertexAttribute &attrib, VertexAttribType currentValueType)
{
if (!attrib.enabled)
{
return GetCurrentValueFormatID(currentValueType);
}
return attrib.format->id;
}
angle::FormatID GetCurrentValueFormatID(VertexAttribType currentValueType)
{
switch (currentValueType)
{
case VertexAttribType::Float:
return angle::FormatID::R32G32B32A32_FLOAT;
case VertexAttribType::Int:
return angle::FormatID::R32G32B32A32_SINT;
case VertexAttribType::UnsignedInt:
return angle::FormatID::R32G32B32A32_UINT;
default:
UNREACHABLE();
return angle::FormatID::NONE;
}
}
const VertexFormat &GetVertexFormatFromID(angle::FormatID vertexFormatID)
{
switch (vertexFormatID)
{
case angle::FormatID::R8_SSCALED:
{
static const VertexFormat format(GL_BYTE, GL_FALSE, 1, false);
return format;
}
case angle::FormatID::R8_SNORM:
{
static const VertexFormat format(GL_BYTE, GL_TRUE, 1, false);
return format;
}
case angle::FormatID::R8G8_SSCALED:
{
static const VertexFormat format(GL_BYTE, GL_FALSE, 2, false);
return format;
}
case angle::FormatID::R8G8_SNORM:
{
static const VertexFormat format(GL_BYTE, GL_TRUE, 2, false);
return format;
}
case angle::FormatID::R8G8B8_SSCALED:
{
static const VertexFormat format(GL_BYTE, GL_FALSE, 3, false);
return format;
}
case angle::FormatID::R8G8B8_SNORM:
{
static const VertexFormat format(GL_BYTE, GL_TRUE, 3, false);
return format;
}
case angle::FormatID::R8G8B8A8_SSCALED:
{
static const VertexFormat format(GL_BYTE, GL_FALSE, 4, false);
return format;
}
case angle::FormatID::R8G8B8A8_SNORM:
{
static const VertexFormat format(GL_BYTE, GL_TRUE, 4, false);
return format;
}
case angle::FormatID::R8_USCALED:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 1, false);
return format;
}