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//
// Copyright (c) 2013-2014 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// formatutils.cpp: Queries for GL image formats.
#include "libANGLE/formatutils.h"
#include "common/mathutil.h"
#include "libANGLE/Context.h"
#include "libANGLE/Framebuffer.h"
using namespace angle;
namespace gl
{
// ES2 requires that format is equal to internal format at all glTex*Image2D entry points and the implementation
// can decide the true, sized, internal format. The ES2FormatMap determines the internal format for all valid
// format and type combinations.
GLenum GetSizedFormatInternal(GLenum format, GLenum type);
namespace
{
using InternalFormatInfoMap =
std::unordered_map<GLenum, std::unordered_map<GLenum, InternalFormat>>;
} // 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;
}
Type::Type()
: bytes(0),
bytesShift(0),
specialInterpretation(false)
{
}
static Type GenTypeInfo(GLuint bytes, bool specialInterpretation)
{
Type info;
info.bytes = bytes;
GLuint i = 0;
while ((1u << i) < bytes)
{
++i;
}
info.bytesShift = i;
ASSERT((1u << info.bytesShift) == bytes);
info.specialInterpretation = specialInterpretation;
return info;
}
bool operator<(const Type& a, const Type& b)
{
return memcmp(&a, &b, sizeof(Type)) < 0;
}
// Information about internal formats
static bool AlwaysSupported(const Version &, const Extensions &)
{
return true;
}
static bool NeverSupported(const Version &, const Extensions &)
{
return false;
}
template <GLuint minCoreGLMajorVersion, GLuint minCoreGLMinorVersion>
static bool RequireES(const Version &clientVersion, const Extensions &)
{
return clientVersion >= Version(minCoreGLMajorVersion, minCoreGLMinorVersion);
}
// Pointer to a boolean memeber of the Extensions struct
typedef bool(Extensions::*ExtensionBool);
// Check support for a single extension
template <ExtensionBool bool1>
static bool RequireExt(const Version &, const Extensions &extensions)
{
return extensions.*bool1;
}
// Check for a minimum client version or a single extension
template <GLuint minCoreGLMajorVersion, GLuint minCoreGLMinorVersion, ExtensionBool bool1>
static bool RequireESOrExt(const Version &clientVersion, const Extensions &extensions)
{
return clientVersion >= Version(minCoreGLMajorVersion, minCoreGLMinorVersion) ||
extensions.*bool1;
}
// Check for a minimum client version or two extensions
template <GLuint minCoreGLMajorVersion,
GLuint minCoreGLMinorVersion,
ExtensionBool bool1,
ExtensionBool bool2>
static bool RequireESOrExtAndExt(const Version &clientVersion, const Extensions &extensions)
{
return clientVersion >= Version(minCoreGLMajorVersion, minCoreGLMinorVersion) ||
(extensions.*bool1 && extensions.*bool2);
}
// Check for a minimum client version or at least one of two extensions
template <GLuint minCoreGLMajorVersion,
GLuint minCoreGLMinorVersion,
ExtensionBool bool1,
ExtensionBool bool2>
static bool RequireESOrExtOrExt(const Version &clientVersion, const Extensions &extensions)
{
return clientVersion >= Version(minCoreGLMajorVersion, minCoreGLMinorVersion) ||
extensions.*bool1 || extensions.*bool2;
}
// Check support for two extensions
template <ExtensionBool bool1, ExtensionBool bool2>
static bool RequireExtAndExt(const Version &, const Extensions &extensions)
{
return extensions.*bool1 && extensions.*bool2;
}
// Check support for either of two extensions
template <ExtensionBool bool1, ExtensionBool bool2>
static bool RequireExtOrExt(const Version &, const Extensions &extensions)
{
return extensions.*bool1 || extensions.*bool2;
}
// Special function for half float formats with three or four channels.
static bool HalfFloatSupport(const Version &clientVersion, const Extensions &extensions)
{
return clientVersion >= Version(3, 0) || extensions.textureHalfFloat;
}
static bool HalfFloatRGBRenderableSupport(const Version &clientVersion,
const Extensions &extensions)
{
return HalfFloatSupport(clientVersion, extensions) && extensions.colorBufferHalfFloat;
}
static bool HalfFloatRGBARenderableSupport(const Version &clientVersion,
const Extensions &extensions)
{
return HalfFloatSupport(clientVersion, extensions) &&
(extensions.colorBufferHalfFloat || extensions.colorBufferFloat);
}
// Special function for half float formats with one or two channels.
// R16F, RG16F
static bool HalfFloatRGSupport(const Version &clientVersion, const Extensions &extensions)
{
return clientVersion >= Version(3, 0) || (extensions.textureHalfFloat && extensions.textureRG);
}
// R16F, RG16F
static bool HalfFloatRGRenderableSupport(const Version &clientVersion, const Extensions &extensions)
{
// It's unclear if EXT_color_buffer_half_float gives renderability to non-OES half float
// textures
return HalfFloatRGSupport(clientVersion, extensions) &&
(extensions.colorBufferHalfFloat || extensions.colorBufferFloat);
}
// RED + HALF_FLOAT_OES, RG + HALF_FLOAT_OES
static bool UnsizedHalfFloatOESRGSupport(const Version &, const Extensions &extensions)
{
return extensions.textureHalfFloat && extensions.textureRG;
}
// RED + HALF_FLOAT_OES, RG + HALF_FLOAT_OES
static bool UnsizedHalfFloatOESRGRenderableSupport(const Version &clientVersion,
const Extensions &extensions)
{
return UnsizedHalfFloatOESRGSupport(clientVersion, extensions) &&
extensions.colorBufferHalfFloat;
}
// RGB + HALF_FLOAT_OES, RGBA + HALF_FLOAT_OES
static bool UnsizedHalfFloatOESSupport(const Version &clientVersion, const Extensions &extensions)
{
return extensions.textureHalfFloat;
}
// RGB + HALF_FLOAT_OES, RGBA + HALF_FLOAT_OES
static bool UnsizedHalfFloatOESRenderableSupport(const Version &clientVersion,
const Extensions &extensions)
{
return UnsizedHalfFloatOESSupport(clientVersion, extensions) && extensions.colorBufferHalfFloat;
}
// Special function for float formats with three or four channels.
// RGB32F, RGBA32F
static bool FloatSupport(const Version &clientVersion, const Extensions &extensions)
{
return clientVersion >= Version(3, 0) || extensions.textureFloat;
}
// RGB32F
static bool FloatRGBRenderableSupport(const Version &clientVersion, const Extensions &extensions)
{
return FloatSupport(clientVersion, extensions) && extensions.colorBufferFloatRGB;
}
// RGBA32F
static bool FloatRGBARenderableSupport(const Version &clientVersion, const Extensions &extensions)
{
return FloatSupport(clientVersion, extensions) &&
(extensions.colorBufferFloat || extensions.colorBufferFloatRGBA);
}
// RGB + FLOAT, RGBA + FLOAT
static bool UnsizedFloatSupport(const Version &clientVersion, const Extensions &extensions)
{
return extensions.textureFloat;
}
// RGB + FLOAT
static bool UnsizedFloatRGBRenderableSupport(const Version &clientVersion,
const Extensions &extensions)
{
return UnsizedFloatSupport(clientVersion, extensions) && extensions.colorBufferFloatRGB;
}
// RGBA + FLOAT
static bool UnsizedFloatRGBARenderableSupport(const Version &clientVersion,
const Extensions &extensions)
{
return UnsizedFloatSupport(clientVersion, extensions) &&
(extensions.colorBufferFloatRGBA || extensions.colorBufferFloat);
}
// Special function for float formats with one or two channels.
// R32F, RG32F
static bool FloatRGSupport(const Version &clientVersion, const Extensions &extensions)
{
return clientVersion >= Version(3, 0) || (extensions.textureFloat && extensions.textureRG);
}
// R32F, RG32F
static bool FloatRGRenderableSupport(const Version &clientVersion, const Extensions &extensions)
{
return FloatRGSupport(clientVersion, extensions) && extensions.colorBufferFloat;
}
// RED + FLOAT, RG + FLOAT
static bool UnsizedFloatRGSupport(const Version &clientVersion, const Extensions &extensions)
{
return extensions.textureFloat && extensions.textureRG;
}
// RED + FLOAT, RG + FLOAT
static bool UnsizedFloatRGRenderableSupport(const Version &clientVersion,
const Extensions &extensions)
{
return FloatRGSupport(clientVersion, extensions) && extensions.colorBufferFloat;
}
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),
format(GL_NONE),
type(GL_NONE),
componentType(GL_NONE),
colorEncoding(GL_NONE),
textureSupport(NeverSupported),
renderSupport(NeverSupported),
filterSupport(NeverSupported)
{
}
bool InternalFormat::isLUMA() const
{
return ((redBits + greenBits + blueBits + depthBits + stencilBits) == 0 &&
(luminanceBits + alphaBits) > 0);
}
GLenum InternalFormat::getReadPixelsFormat() const
{
return format;
}
GLenum InternalFormat::getReadPixelsType() const
{
switch (type)
{
case GL_HALF_FLOAT:
// 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
return GL_HALF_FLOAT_OES;
default:
return type;
}
}
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
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 FmtHexShort(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 renderSupport,
InternalFormat::SupportCheckFunction filterSupport)
{
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.renderSupport = renderSupport;
formatInfo.filterSupport = filterSupport;
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 renderSupport,
InternalFormat::SupportCheckFunction filterSupport)
{
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.renderSupport = renderSupport;
formatInfo.filterSupport = filterSupport;
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 renderSupport,
InternalFormat::SupportCheckFunction filterSupport)
{
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.renderSupport = renderSupport;
formatInfo.filterSupport = filterSupport;
InsertFormatInfo(map, formatInfo);
}
void AddCompressedFormat(InternalFormatInfoMap *map,
GLenum internalFormat,
GLuint compressedBlockWidth,
GLuint compressedBlockHeight,
GLuint compressedBlockSize,
GLuint componentCount,
GLenum format,
GLenum type,
bool srgb,
InternalFormat::SupportCheckFunction textureSupport,
InternalFormat::SupportCheckFunction renderSupport,
InternalFormat::SupportCheckFunction filterSupport)
{
InternalFormat formatInfo;
formatInfo.internalFormat = internalFormat;
formatInfo.sized = true;
formatInfo.sizedInternalFormat = internalFormat;
formatInfo.compressedBlockWidth = compressedBlockWidth;
formatInfo.compressedBlockHeight = compressedBlockHeight;
formatInfo.pixelBytes = compressedBlockSize / 8;
formatInfo.componentCount = componentCount;
formatInfo.format = format;
formatInfo.type = type;
formatInfo.componentType = GL_UNSIGNED_NORMALIZED;
formatInfo.colorEncoding = (srgb ? GL_SRGB : GL_LINEAR);
formatInfo.compressed = true;
formatInfo.textureSupport = textureSupport;
formatInfo.renderSupport = renderSupport;
formatInfo.filterSupport = filterSupport;
InsertFormatInfo(map, formatInfo);
}
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 | Renderable | Filterable |
AddRGBAFormat(&map, GL_R8, true, 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureRG>, RequireESOrExt<3, 0, &Extensions::textureRG>, AlwaysSupported);
AddRGBAFormat(&map, GL_R8_SNORM, true, 8, 0, 0, 0, 0, GL_RED, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3, 0>, NeverSupported, AlwaysSupported);
AddRGBAFormat(&map, GL_RG8, true, 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureRG>, RequireESOrExt<3, 0, &Extensions::textureRG>, AlwaysSupported);
AddRGBAFormat(&map, GL_RG8_SNORM, true, 8, 8, 0, 0, 0, GL_RG, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3, 0>, NeverSupported, AlwaysSupported);
AddRGBAFormat(&map, GL_RGB8, true, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::rgb8rgba8>, RequireESOrExt<3, 0, &Extensions::rgb8rgba8>, AlwaysSupported);
AddRGBAFormat(&map, GL_RGB8_SNORM, true, 8, 8, 8, 0, 0, GL_RGB, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3, 0>, NeverSupported, AlwaysSupported);
AddRGBAFormat(&map, GL_RGB565, true, 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, RequireES<2, 0>, RequireES<2, 0>, AlwaysSupported);
AddRGBAFormat(&map, GL_RGBA4, true, 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, RequireES<2, 0>, RequireES<2, 0>, AlwaysSupported);
AddRGBAFormat(&map, GL_RGB5_A1, true, 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, RequireES<2, 0>, RequireES<2, 0>, AlwaysSupported);
AddRGBAFormat(&map, GL_RGBA8, true, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::rgb8rgba8>, RequireESOrExt<3, 0, &Extensions::rgb8rgba8>, AlwaysSupported);
AddRGBAFormat(&map, GL_RGBA8_SNORM, true, 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3, 0>, NeverSupported, AlwaysSupported);
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>, RequireES<3, 0>, AlwaysSupported);
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>, RequireES<3, 0>, NeverSupported);
AddRGBAFormat(&map, GL_SRGB8, true, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireESOrExt<3, 0, &Extensions::sRGB>, NeverSupported, AlwaysSupported);
AddRGBAFormat(&map, GL_SRGB8_ALPHA8, true, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireESOrExt<3, 0, &Extensions::sRGB>, RequireESOrExt<3, 0, &Extensions::sRGB>, AlwaysSupported);
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>, NeverSupported, AlwaysSupported);
AddRGBAFormat(&map, GL_R8I, true, 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, GL_INT, false, 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>, 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>, 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>, 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>, 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>, 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>, 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>, 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>, 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>, 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>, RequireES<3, 0>, NeverSupported);
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>, RequireExt<&Extensions::colorBufferFloat>, AlwaysSupported);
AddRGBAFormat(&map, GL_RG32UI, true, 32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, 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);
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);
AddRGBAFormat(&map, GL_RGB16I, true, 16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RGB32I, true, 32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RGBA8I, true, 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, GL_INT, false, 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>, 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>, 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>, 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>, 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>, 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::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported);
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>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported);
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>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported);
// Special format which is not really supported, so always false for all supports.
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);
// Floating point renderability and filtering is provided by OES_texture_float and OES_texture_half_float
// | Internal format |sized| D |S | Format | Type | Comp | SRGB | Texture supported | Renderable | Filterable |
// | | | | | | | type | | | | |
AddRGBAFormat(&map, GL_R16F, true, 16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, GL_FLOAT, false, HalfFloatRGSupport, HalfFloatRGRenderableSupport, RequireESOrExt<3, 0, &Extensions::textureHalfFloatLinear>);
AddRGBAFormat(&map, GL_RG16F, true, 16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, GL_FLOAT, false, HalfFloatRGSupport, HalfFloatRGRenderableSupport, RequireESOrExt<3, 0, &Extensions::textureHalfFloatLinear>);
AddRGBAFormat(&map, GL_RGB16F, true, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, HalfFloatSupport, HalfFloatRGBRenderableSupport, RequireESOrExt<3, 0, &Extensions::textureHalfFloatLinear>);
AddRGBAFormat(&map, GL_RGBA16F, true, 16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, GL_FLOAT, false, HalfFloatSupport, HalfFloatRGBARenderableSupport, RequireESOrExt<3, 0, &Extensions::textureHalfFloatLinear>);
AddRGBAFormat(&map, GL_R32F, true, 32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, FloatRGSupport, FloatRGRenderableSupport, RequireExt<&Extensions::textureFloatLinear> );
AddRGBAFormat(&map, GL_RG32F, true, 32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, FloatRGSupport, FloatRGRenderableSupport, RequireExt<&Extensions::textureFloatLinear> );
AddRGBAFormat(&map, GL_RGB32F, true, 32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, FloatSupport, FloatRGBRenderableSupport, RequireExt<&Extensions::textureFloatLinear> );
AddRGBAFormat(&map, GL_RGBA32F, true, 32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, FloatSupport, FloatRGBARenderableSupport, RequireExt<&Extensions::textureFloatLinear> );
// Depth stencil formats
// | Internal format |sized| D |S | X | Format | Type | Component type | Supported | Renderable | Filterable |
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT16, true, 16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, RequireES<2, 0>, RequireES<2, 0>, RequireESOrExt<3, 0, &Extensions::depthTextures>);
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT24, true, 24, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireES<3, 0>, RequireES<3, 0>, RequireESOrExt<3, 0, &Extensions::depthTextures>);
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT32F, true, 32, 0, 0, GL_DEPTH_COMPONENT, GL_FLOAT, GL_FLOAT, RequireES<3, 0>, RequireES<3, 0>, RequireESOrExt<3, 0, &Extensions::depthTextures>);
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT32_OES, true, 32, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireExtOrExt<&Extensions::depthTextures, &Extensions::depth32>, RequireExtOrExt<&Extensions::depthTextures, &Extensions::depth32>, AlwaysSupported );
AddDepthStencilFormat(&map, GL_DEPTH24_STENCIL8, true, 24, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_NORMALIZED, RequireESOrExt<3, 0, &Extensions::depthTextures>, RequireESOrExtOrExt<3, 0, &Extensions::depthTextures, &Extensions::packedDepthStencil>, AlwaysSupported );
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>, RequireES<3, 0>, AlwaysSupported );
// STENCIL_INDEX8 is special-cased, see around the bottom of the list.
// Luminance alpha formats
// | Internal format |sized| L | A | Format | Type | Component type | Supported | Renderable | Filterable |
AddLUMAFormat(&map, GL_ALPHA8_EXT, true, 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, NeverSupported, AlwaysSupported);
AddLUMAFormat(&map, GL_LUMINANCE8_EXT, true, 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, NeverSupported, AlwaysSupported);
AddLUMAFormat(&map, GL_LUMINANCE8_ALPHA8_EXT, true, 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, NeverSupported, AlwaysSupported);
AddLUMAFormat(&map, GL_ALPHA16F_EXT, true, 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, NeverSupported, RequireESOrExt<3, 0, &Extensions::textureHalfFloatLinear>);
AddLUMAFormat(&map, GL_LUMINANCE16F_EXT, true, 16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, NeverSupported, RequireESOrExt<3, 0, &Extensions::textureHalfFloatLinear>);
AddLUMAFormat(&map, GL_LUMINANCE_ALPHA16F_EXT, true, 16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, NeverSupported, RequireESOrExt<3, 0, &Extensions::textureHalfFloatLinear>);
AddLUMAFormat(&map, GL_ALPHA32F_EXT, true, 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, NeverSupported, RequireExt<&Extensions::textureFloatLinear>);
AddLUMAFormat(&map, GL_LUMINANCE32F_EXT, true, 32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, NeverSupported, RequireExt<&Extensions::textureFloatLinear>);
AddLUMAFormat(&map, GL_LUMINANCE_ALPHA32F_EXT, true, 32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, NeverSupported, RequireExt<&Extensions::textureFloatLinear>);
// Compressed formats, From ES 3.0.1 spec, table 3.16
// | Internal format |W |H | BS |CC| Format | Type | SRGB | Supported | Renderable | Filterable |
AddCompressedFormat(&map, GL_COMPRESSED_R11_EAC, 4, 4, 64, 1, GL_RED, GL_UNSIGNED_BYTE, false, RequireES<3, 0>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SIGNED_R11_EAC, 4, 4, 64, 1, GL_RED, GL_UNSIGNED_BYTE, false, RequireES<3, 0>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RG11_EAC, 4, 4, 128, 2, GL_RG, GL_UNSIGNED_BYTE, false, RequireES<3, 0>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SIGNED_RG11_EAC, 4, 4, 128, 2, GL_RG, GL_UNSIGNED_BYTE, false, RequireES<3, 0>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGB8_ETC2, 4, 4, 64, 3, GL_RGB, GL_UNSIGNED_BYTE, false, RequireES<3, 0>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ETC2, 4, 4, 64, 3, GL_RGB, GL_UNSIGNED_BYTE, true, RequireES<3, 0>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, 4, 4, 64, 3, GL_RGB, GL_UNSIGNED_BYTE, false, RequireES<3, 0>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, 4, 4, 64, 3, GL_RGB, GL_UNSIGNED_BYTE, true, RequireES<3, 0>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA8_ETC2_EAC, 4, 4, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireES<3, 0>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, 4, 4, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireES<3, 0>, NeverSupported, AlwaysSupported);
// From GL_EXT_texture_compression_dxt1
// | Internal format |W |H | BS |CC| Format | Type | SRGB | Supported | Renderable | Filterable |
AddCompressedFormat(&map, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 4, 4, 64, 3, GL_RGB, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::textureCompressionDXT1>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 4, 4, 64, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::textureCompressionDXT1>, NeverSupported, AlwaysSupported);
// From GL_ANGLE_texture_compression_dxt3
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, 4, 4, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::textureCompressionDXT5>, NeverSupported, AlwaysSupported);
// From GL_ANGLE_texture_compression_dxt5
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, 4, 4, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::textureCompressionDXT5>, NeverSupported, AlwaysSupported);
// From GL_OES_compressed_ETC1_RGB8_texture
AddCompressedFormat(&map, GL_ETC1_RGB8_OES, 4, 4, 64, 3, GL_RGB, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::compressedETC1RGB8Texture>, NeverSupported, AlwaysSupported);
// From GL_EXT_texture_compression_s3tc_srgb
// | Internal format |W |H | BS |CC| Format | Type | SRGB | Supported | Renderable | Filterable |
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, 4, 4, 64, 3, GL_RGB, GL_UNSIGNED_BYTE, true, RequireExt<&Extensions::textureCompressionS3TCsRGB>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, 4, 4, 64, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExt<&Extensions::textureCompressionS3TCsRGB>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, 4, 4, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExt<&Extensions::textureCompressionS3TCsRGB>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, 4, 4, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExt<&Extensions::textureCompressionS3TCsRGB>, NeverSupported, AlwaysSupported);
// From KHR_texture_compression_astc_hdr
// | Internal format | W | H | BS |CC| Format | Type | SRGB | Supported | Renderable | Filterable |
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_4x4_KHR, 4, 4, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x4_KHR, 5, 4, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_5x5_KHR, 5, 5, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x5_KHR, 6, 5, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_6x6_KHR, 6, 6, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_8x5_KHR, 8, 5, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_8x6_KHR, 8, 6, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_8x8_KHR, 8, 8, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x5_KHR, 10, 5, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x6_KHR, 10, 6, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x8_KHR, 10, 8, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_10x10_KHR, 10, 10, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_12x10_KHR, 12, 10, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGBA_ASTC_12x12_KHR, 12, 12, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR, 4, 4, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR, 5, 4, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR, 5, 5, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR, 6, 5, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR, 6, 6, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR, 8, 5, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR, 8, 6, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR, 8, 8, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR, 10, 5, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR, 10, 6, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR, 10, 8, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR, 10, 10, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR, 12, 10, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR, 12, 12, 128, 4, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported);
// For STENCIL_INDEX8 we chose a normalized component type for the following reasons:
// - Multisampled buffer are disallowed for non-normalized integer component types and we want to support it for STENCIL_INDEX8
// - All other stencil formats (all depth-stencil) are either float or normalized
// - It affects only validation of internalformat in RenderbufferStorageMultisample.
// | Internal format |sized|D |S |X | Format | Type | Component type | Supported | Renderable | Filterable |
AddDepthStencilFormat(&map, GL_STENCIL_INDEX8, true, 0, 8, 0, GL_STENCIL, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<2, 0>, RequireES<2, 0>, NeverSupported);
// From GL_ANGLE_lossy_etc_decode
// | Internal format |W |H |BS |CC| Format | Type | SRGB | Supported | Renderable | Filterable |
AddCompressedFormat(&map, GL_ETC1_RGB8_LOSSY_DECODE_ANGLE, 4, 4, 64, 3, GL_RGB, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::lossyETCDecode>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 64, 3, GL_RGB, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::lossyETCDecode>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 64, 3, GL_RGB, GL_UNSIGNED_BYTE, true, RequireExt<&Extensions::lossyETCDecode>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 64, 3, GL_RGBA, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::lossyETCDecode>, NeverSupported, AlwaysSupported);
AddCompressedFormat(&map, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE, 4, 4, 64, 3, GL_RGBA, GL_UNSIGNED_BYTE, true, RequireExt<&Extensions::lossyETCDecode>, NeverSupported, AlwaysSupported);
// From GL_EXT_texture_norm16
// | Internal format |sized| R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Renderable | Filterable |
AddRGBAFormat(&map, GL_R16_EXT, true, 16, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, RequireExt<&Extensions::textureNorm16>, AlwaysSupported);
AddRGBAFormat(&map, GL_R16_SNORM_EXT, true, 16, 0, 0, 0, 0, GL_RED, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, NeverSupported, AlwaysSupported);
AddRGBAFormat(&map, GL_RG16_EXT, true, 16, 16, 0, 0, 0, GL_RG, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, RequireExt<&Extensions::textureNorm16>, AlwaysSupported);
AddRGBAFormat(&map, GL_RG16_SNORM_EXT, true, 16, 16, 0, 0, 0, GL_RG, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, NeverSupported, AlwaysSupported);
AddRGBAFormat(&map, GL_RGB16_EXT, true, 16, 16, 16, 0, 0, GL_RGB, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, NeverSupported, AlwaysSupported);
AddRGBAFormat(&map, GL_RGB16_SNORM_EXT, true, 16, 16, 16, 0, 0, GL_RGB, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, NeverSupported, AlwaysSupported);
AddRGBAFormat(&map, GL_RGBA16_EXT, true, 16, 16, 16, 16, 0, GL_RGBA, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, RequireExt<&Extensions::textureNorm16>, AlwaysSupported);
AddRGBAFormat(&map, GL_RGBA16_SNORM_EXT, true, 16, 16, 16, 16, 0, GL_RGBA, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, NeverSupported, AlwaysSupported);
// Unsized formats
// | Internal format |sized | R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Renderable | Filterable |
AddRGBAFormat(&map, GL_RED, false, 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureRG>, NeverSupported, AlwaysSupported);
AddRGBAFormat(&map, GL_RG, false, 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::textureRG>, NeverSupported, AlwaysSupported);
AddRGBAFormat(&map, GL_RGB, false, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, 0, &Extensions::rgb8rgba8>, RequireESOrExt<3, 0, &Extensions::rgb8rgba8>, AlwaysSupported);
AddRGBAFormat(&map, GL_RGB, false, 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, RequireES<2, 0>, RequireES<2, 0>, AlwaysSupported);
AddRGBAFormat(&map, GL_RGBA, false, 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, RequireES<2, 0>, RequireES<2, 0>, AlwaysSupported);
AddRGBAFormat(&map, GL_RGBA, false, 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, RequireES<2, 0>, RequireES<2, 0>, AlwaysSupported);
AddRGBAFormat(&map, GL_RGBA, false, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireES<2, 0>, RequireES<2, 0>, AlwaysSupported);
AddRGBAFormat(&map, GL_RGBA, false, 10, 10, 10, 2, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, RequireES<2, 0>, RequireES<2, 0>, AlwaysSupported);
AddRGBAFormat(&map, GL_SRGB, false, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireExt<&Extensions::sRGB>, NeverSupported, AlwaysSupported);
AddRGBAFormat(&map, GL_SRGB_ALPHA_EXT, false, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireExt<&Extensions::sRGB>, RequireExt<&Extensions::sRGB>, AlwaysSupported);
AddRGBAFormat(&map, GL_BGRA_EXT, false, 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported);
// Unsized integer formats
// |Internal format |sized | R | G | B | A |S | Format | Type | Component type | SRGB | Texture | Renderable | Filterable |
AddRGBAFormat(&map, GL_RED_INTEGER, false, 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RED_INTEGER, false, 16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RED_INTEGER, false, 32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RG_INTEGER, false, 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RG_INTEGER, false, 16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RG_INTEGER, false, 32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RGB_INTEGER, false, 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RGB_INTEGER, false, 16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RGB_INTEGER, false, 32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, GL_INT, false, RequireES<3, 0>, 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);
AddRGBAFormat(&map, GL_RGBA_INTEGER, false, 32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, GL_INT, false, RequireES<3, 0>, 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);
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);
// Unsized floating point formats
// |Internal format |sized | R | G | B | A |S | Format | Type | Comp | SRGB | Texture supported | Renderable | Filterable |
AddRGBAFormat(&map, GL_RED, false, 16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RG, false, 16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGB, false, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RGBA, false, 16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, GL_FLOAT, false, NeverSupported, NeverSupported, NeverSupported );
AddRGBAFormat(&map, GL_RED, false, 16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT_OES, GL_FLOAT, false, UnsizedHalfFloatOESRGSupport, UnsizedHalfFloatOESRGRenderableSupport, RequireESOrExt<3, 0, &Extensions::textureHalfFloatLinear>);
AddRGBAFormat(&map, GL_RG, false, 16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT_OES, GL_FLOAT, false, UnsizedHalfFloatOESRGSupport, UnsizedHalfFloatOESRGRenderableSupport, RequireESOrExt<3, 0, &Extensions::textureHalfFloatLinear>);
AddRGBAFormat(&map, GL_RGB, false, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT_OES, GL_FLOAT, false, UnsizedHalfFloatOESSupport, UnsizedHalfFloatOESRenderableSupport, RequireESOrExt<3, 0, &Extensions::textureHalfFloatLinear>);
AddRGBAFormat(&map, GL_RGBA, false, 16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT_OES, GL_FLOAT, false, UnsizedHalfFloatOESSupport, UnsizedHalfFloatOESRenderableSupport, RequireESOrExt<3, 0, &Extensions::textureHalfFloatLinear>);
AddRGBAFormat(&map, GL_RED, false, 32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, UnsizedFloatRGSupport, UnsizedFloatRGRenderableSupport, RequireExt<&Extensions::textureFloatLinear> );
AddRGBAFormat(&map, GL_RG, false, 32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, UnsizedFloatRGSupport, UnsizedFloatRGRenderableSupport, RequireExt<&Extensions::textureFloatLinear> );
AddRGBAFormat(&map, GL_RGB, false, 32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, UnsizedFloatSupport, UnsizedFloatRGBRenderableSupport, RequireExt<&Extensions::textureFloatLinear> );
AddRGBAFormat(&map, GL_RGBA, false, 32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, UnsizedFloatSupport, UnsizedFloatRGBARenderableSupport, RequireExt<&Extensions::textureFloatLinear> );
// Unsized luminance alpha formats
// | Internal format |sized | L | A | Format | Type | Component type | Supported | Renderable | Filterable |
AddLUMAFormat(&map, GL_ALPHA, false, 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<2, 0>, NeverSupported, AlwaysSupported );
AddLUMAFormat(&map, GL_LUMINANCE, false, 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<2, 0>, NeverSupported, AlwaysSupported );
AddLUMAFormat(&map, GL_LUMINANCE_ALPHA, false, 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<2, 0>, NeverSupported, AlwaysSupported );
AddLUMAFormat(&map, GL_ALPHA, false, 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExt<&Extensions::textureHalfFloat>, NeverSupported, RequireExt<&Extensions::textureHalfFloatLinear>);
AddLUMAFormat(&map, GL_LUMINANCE, false, 16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExt<&Extensions::textureHalfFloat>, NeverSupported, RequireExt<&Extensions::textureHalfFloatLinear>);
AddLUMAFormat(&map, GL_LUMINANCE_ALPHA ,false, 16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, RequireExt<&Extensions::textureHalfFloat>, NeverSupported, RequireExt<&Extensions::textureHalfFloatLinear>);
AddLUMAFormat(&map, GL_ALPHA, false, 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, RequireExt<&Extensions::textureFloat>, NeverSupported, RequireExt<&Extensions::textureFloatLinear> );
AddLUMAFormat(&map, GL_LUMINANCE, false, 32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, RequireExt<&Extensions::textureFloat>, NeverSupported, RequireExt<&Extensions::textureFloatLinear> );
AddLUMAFormat(&map, GL_LUMINANCE_ALPHA, false, 32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, RequireExt<&Extensions::textureFloat>, NeverSupported, RequireExt<&Extensions::textureFloatLinear> );
// Unsized depth stencil formats
// | Internal format |sized | D |S | X | Format | Type | Component type | Supported | Renderable | Filterable |
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT, false, 16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, RequireES<2, 0>, RequireES<2, 0>, AlwaysSupported);
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT, false, 24, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireES<2, 0>, RequireES<2, 0>, AlwaysSupported);
AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT, false, 32, 0, 0, GL_DEPTH_COMPONENT, GL_FLOAT, GL_FLOAT, RequireES<2, 0>, RequireES<2, 0>, AlwaysSupported);
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>, RequireESOrExt<3, 0, &Extensions::packedDepthStencil>, AlwaysSupported);
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>, RequireESOrExt<3, 0, &Extensions::packedDepthStencil>, AlwaysSupported);
AddDepthStencilFormat(&map, GL_STENCIL, false, 0, 8, 0, GL_STENCIL, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<2, 0>, RequireES<2, 0>, NeverSupported);
// clang-format on
return map;
}
static const InternalFormatInfoMap &GetInternalFormatMap()
{
static const InternalFormatInfoMap formatMap = BuildInternalFormatInfoMap();
return formatMap;
}
static FormatSet BuildAllSizedInternalFormatSet()
{
FormatSet result;
for (const auto &internalFormat : GetInternalFormatMap())
{
for (const auto &type : internalFormat.second)
{
if (type.second.sized)
{
// TODO(jmadill): Fix this hack.
if (internalFormat.first == GL_BGR565_ANGLEX)
continue;
result.insert(internalFormat.first);
}
}
}
return result;
}
const Type &GetTypeInfo(GLenum type)
{
switch (type)
{
case GL_UNSIGNED_BYTE:
case GL_BYTE:
{
static const Type info = GenTypeInfo(1, false);
return info;
}
case GL_UNSIGNED_SHORT:
case GL_SHORT:
case GL_HALF_FLOAT:
case GL_HALF_FLOAT_OES:
{
static const Type info = GenTypeInfo(2, false);
return info;
}
case GL_UNSIGNED_INT:
case GL_INT:
case GL_FLOAT:
{
static const Type info = GenTypeInfo(4, false);
return info;
}
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_SHORT_4_4_4_4:
case GL_UNSIGNED_SHORT_5_5_5_1:
case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT:
case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT:
{
static const Type info = GenTypeInfo(2, true);
return info;
}
case GL_UNSIGNED_INT_2_10_10_10_REV:
case GL_UNSIGNED_INT_24_8:
case GL_UNSIGNED_INT_10F_11F_11F_REV:
case GL_UNSIGNED_INT_5_9_9_9_REV:
{
ASSERT(GL_UNSIGNED_INT_24_8_OES == GL_UNSIGNED_INT_24_8);
static const Type info = GenTypeInfo(4, true);
return info;
}
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
{
static const Type info = GenTypeInfo(8, true);
return info;
}
default:
{
static const Type defaultInfo;
return defaultInfo;
}
}
}
const InternalFormat &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;
}
ErrorOrResult<GLuint> InternalFormat::computeRowPitch(GLenum formatType,
GLsizei width,
GLint alignment,
GLint rowLength) const
{
// Compressed images do not use pack/unpack parameters.
if (compressed)
{
ASSERT(rowLength == 0);
return computeCompressedImageSize(formatType, Extents(width, 1, 1));
}
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);
ANGLE_TRY_CHECKED_MATH(aligned);
return aligned.ValueOrDie();
}
ErrorOrResult<GLuint> InternalFormat::computeDepthPitch(GLsizei height,
GLint imageHeight,
GLuint rowPitch) const
{
GLuint rows =
(imageHeight > 0 ? static_cast<GLuint>(imageHeight) : static_cast<GLuint>(height));
CheckedNumeric<GLuint> checkedRowPitch(rowPitch);
auto depthPitch = checkedRowPitch * rows;
ANGLE_TRY_CHECKED_MATH(depthPitch);
return depthPitch.ValueOrDie();
}
ErrorOrResult<GLuint> InternalFormat::computeDepthPitch(GLenum formatType,
GLsizei width,
GLsizei height,
GLint alignment,
GLint rowLength,
GLint imageHeight) const
{
GLuint rowPitch = 0;
ANGLE_TRY_RESULT(computeRowPitch(formatType, width, alignment, rowLength), rowPitch);
return computeDepthPitch(height, imageHeight, rowPitch);
}
ErrorOrResult<GLuint> InternalFormat::computeCompressedImageSize(GLenum formatType,
const Extents &size) 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;
ANGLE_TRY_CHECKED_MATH(bytes);
return bytes.ValueOrDie();
}
ErrorOrResult<GLuint> InternalFormat::computeSkipBytes(GLuint rowPitch,
GLuint depthPitch,
const PixelStoreStateBase &state,
bool is3D) 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(pixelBytes);
auto checkedSkipImagesBytes = checkedSkipImages * checkedDepthPitch;
if (!is3D)
{
checkedSkipImagesBytes = 0;
}
auto skipBytes = checkedSkipImagesBytes + checkedSkipRows * checkedRowPitch +
checkedSkipPixels * checkedPixelBytes;
ANGLE_TRY_CHECKED_MATH(skipBytes);
return skipBytes.ValueOrDie();
}
ErrorOrResult<GLuint> InternalFormat::computePackUnpackEndByte(
GLenum formatType,
const Extents &size,
const PixelStoreStateBase &state,
bool is3D) const
{
GLuint rowPitch = 0;
ANGLE_TRY_RESULT(computeRowPitch(formatType, size.width, state.alignment, state.rowLength),
rowPitch);
GLuint depthPitch = 0;
if (is3D)
{
ANGLE_TRY_RESULT(computeDepthPitch(size.height, state.imageHeight, rowPitch), depthPitch);
}
CheckedNumeric<GLuint> checkedCopyBytes = 0;
if (compressed)
{
ANGLE_TRY_RESULT(computeCompressedImageSize(formatType, size), checkedCopyBytes);
}
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;
}
}
CheckedNumeric<GLuint> checkedSkipBytes = 0;
ANGLE_TRY_RESULT(computeSkipBytes(rowPitch, depthPitch, state, is3D), checkedSkipBytes);
CheckedNumeric<GLuint> endByte = checkedCopyBytes + checkedSkipBytes;
ANGLE_TRY_CHECKED_MATH(endByte);
return endByte.ValueOrDie();
}
GLenum GetUnsizedFormat(GLenum internalFormat)
{
auto sizedFormatInfo = GetSizedInternalFormatInfo(internalFormat);
if (sizedFormatInfo.internalFormat != GL_NONE)
{
return sizedFormatInfo.format;
}
return internalFormat;
}
const FormatSet &GetAllSizedInternalFormats()
{
static FormatSet formatSet = BuildAllSizedInternalFormatSet();
return formatSet;
}
AttributeType GetAttributeType(GLenum enumValue)
{
switch (enumValue)
{
case GL_FLOAT:
return ATTRIBUTE_FLOAT;
case GL_FLOAT_VEC2:
return ATTRIBUTE_VEC2;
case GL_FLOAT_VEC3:
return ATTRIBUTE_VEC3;
case GL_FLOAT_VEC4:
return ATTRIBUTE_VEC4;
case GL_INT:
return ATTRIBUTE_INT;
case GL_INT_VEC2:
return ATTRIBUTE_IVEC2;
case GL_INT_VEC3:
return ATTRIBUTE_IVEC3;
case GL_INT_VEC4:
return ATTRIBUTE_IVEC4;
case GL_UNSIGNED_INT:
return ATTRIBUTE_UINT;
case GL_UNSIGNED_INT_VEC2:
return ATTRIBUTE_UVEC2;
case GL_UNSIGNED_INT_VEC3:
return ATTRIBUTE_UVEC3;
case GL_UNSIGNED_INT_VEC4:
return ATTRIBUTE_UVEC4;
case GL_FLOAT_MAT2:
return ATTRIBUTE_MAT2;
case GL_FLOAT_MAT3:
return ATTRIBUTE_MAT3;
case GL_FLOAT_MAT4:
return ATTRIBUTE_MAT4;
case GL_FLOAT_MAT2x3:
return ATTRIBUTE_MAT2x3;
case GL_FLOAT_MAT2x4:
return ATTRIBUTE_MAT2x4;
case GL_FLOAT_MAT3x2:
return ATTRIBUTE_MAT3x2;
case GL_FLOAT_MAT3x4:
return ATTRIBUTE_MAT3x4;
case GL_FLOAT_MAT4x2:
return ATTRIBUTE_MAT4x2;
case GL_FLOAT_MAT4x3:
return ATTRIBUTE_MAT4x3;
default:
UNREACHABLE();
return ATTRIBUTE_FLOAT;
}
}
VertexFormatType GetVertexFormatType(GLenum type, GLboolean normalized, GLuint components, bool pureInteger)
{
switch (type)
{
case GL_BYTE:
switch (components)
{
case 1:
if (pureInteger)
return VERTEX_FORMAT_SBYTE1_INT;
if (normalized)
return VERTEX_FORMAT_SBYTE1_NORM;
return VERTEX_FORMAT_SBYTE1;
case 2:
if (pureInteger)
return VERTEX_FORMAT_SBYTE2_INT;
if (normalized)
return VERTEX_FORMAT_SBYTE2_NORM;
return VERTEX_FORMAT_SBYTE2;
case 3:
if (pureInteger)
return VERTEX_FORMAT_SBYTE3_INT;
if (normalized)
return VERTEX_FORMAT_SBYTE3_NORM;
return VERTEX_FORMAT_SBYTE3;
case 4:
if (pureInteger)
return VERTEX_FORMAT_SBYTE4_INT;
if (normalized)
return VERTEX_FORMAT_SBYTE4_NORM;
return VERTEX_FORMAT_SBYTE4;
default:
UNREACHABLE();
break;
}
case GL_UNSIGNED_BYTE:
switch (components)
{
case 1:
if (pureInteger)
return VERTEX_FORMAT_UBYTE1_INT;
if (normalized)
return VERTEX_FORMAT_UBYTE1_NORM;
return VERTEX_FORMAT_UBYTE1;
case 2:
if (pureInteger)
return VERTEX_FORMAT_UBYTE2_INT;
if (normalized)
return VERTEX_FORMAT_UBYTE2_NORM;
return VERTEX_FORMAT_UBYTE2;
case 3:
if (pureInteger)
return VERTEX_FORMAT_UBYTE3_INT;
if (normalized)
return VERTEX_FORMAT_UBYTE3_NORM;
return VERTEX_FORMAT_UBYTE3;
case 4:
if (pureInteger)
return VERTEX_FORMAT_UBYTE4_INT;
if (normalized)
return VERTEX_FORMAT_UBYTE4_NORM;
return VERTEX_FORMAT_UBYTE4;
default:
UNREACHABLE();
break;
}
case GL_SHORT:
switch (components)
{
case 1:
if (pureInteger)
return VERTEX_FORMAT_SSHORT1_INT;
if (normalized)
return VERTEX_FORMAT_SSHORT1_NORM;
return VERTEX_FORMAT_SSHORT1;
case 2:
if (pureInteger)
return VERTEX_FORMAT_SSHORT2_INT;
if (normalized)
return VERTEX_FORMAT_SSHORT2_NORM;
return VERTEX_FORMAT_SSHORT2;
case 3:
if (pureInteger)
return VERTEX_FORMAT_SSHORT3_INT;
if (normalized)
return VERTEX_FORMAT_SSHORT3_NORM;
return VERTEX_FORMAT_SSHORT3;
case 4:
if (pureInteger)
return VERTEX_FORMAT_SSHORT4_INT;
if (normalized)
return VERTEX_FORMAT_SSHORT4_NORM;
return VERTEX_FORMAT_SSHORT4;
default:
UNREACHABLE();
break;
}
case GL_UNSIGNED_SHORT:
switch (components)
{
case 1:
if (pureInteger)
return VERTEX_FORMAT_USHORT1_INT;
if (normalized)
return VERTEX_FORMAT_USHORT1_NORM;
return VERTEX_FORMAT_USHORT1;
case 2:
if (pureInteger)
return VERTEX_FORMAT_USHORT2_INT;
if (normalized)
return VERTEX_FORMAT_USHORT2_NORM;
return VERTEX_FORMAT_USHORT2;
case 3:
if (pureInteger)
return VERTEX_FORMAT_USHORT3_INT;
if (normalized)
return VERTEX_FORMAT_USHORT3_NORM;
return VERTEX_FORMAT_USHORT3;
case 4:
if (pureInteger)
return VERTEX_FORMAT_USHORT4_INT;
if (normalized)
return VERTEX_FORMAT_USHORT4_NORM;
return VERTEX_FORMAT_USHORT4;
default:
UNREACHABLE();
break;
}
case GL_INT:
switch (components)
{
case 1:
if (pureInteger)
return VERTEX_FORMAT_SINT1_INT;
if (normalized)
return VERTEX_FORMAT_SINT1_NORM;
return VERTEX_FORMAT_SINT1;
case 2:
if (pureInteger)
return VERTEX_FORMAT_SINT2_INT;
if (normalized)
return VERTEX_FORMAT_SINT2_NORM;
return VERTEX_FORMAT_SINT2;
case 3:
if (pureInteger)
return VERTEX_FORMAT_SINT3_INT;
if (normalized)
return VERTEX_FORMAT_SINT3_NORM;
return VERTEX_FORMAT_SINT3;
case 4:
if (pureInteger)
return VERTEX_FORMAT_SINT4_INT;
if (normalized)
return VERTEX_FORMAT_SINT4_NORM;
return VERTEX_FORMAT_SINT4;
default:
UNREACHABLE();
break;
}
case GL_UNSIGNED_INT:
switch (components)
{
case 1:
if (pureInteger)
return VERTEX_FORMAT_UINT1_INT;
if (normalized)
return VERTEX_FORMAT_UINT1_NORM;
return VERTEX_FORMAT_UINT1;
case 2:
if (pureInteger)
return VERTEX_FORMAT_UINT2_INT;
if (normalized)
return VERTEX_FORMAT_UINT2_NORM;
return VERTEX_FORMAT_UINT2;
case 3:
if (pureInteger)
return VERTEX_FORMAT_UINT3_INT;
if (normalized)
return VERTEX_FORMAT_UINT3_NORM;
return VERTEX_FORMAT_UINT3;
case 4:
if (pureInteger)
return VERTEX_FORMAT_UINT4_INT;
if (normalized)
return VERTEX_FORMAT_UINT4_NORM;
return VERTEX_FORMAT_UINT4;
default:
UNREACHABLE();
break;
}
case GL_FLOAT:
switch (components)
{
case 1:
return VERTEX_FORMAT_FLOAT1;
case 2:
return VERTEX_FORMAT_FLOAT2;
case 3:
return VERTEX_FORMAT_FLOAT3;
case 4:
return VERTEX_FORMAT_FLOAT4;
default:
UNREACHABLE();
break;
}
case GL_HALF_FLOAT:
switch (components)
{
case 1:
return VERTEX_FORMAT_HALF1;
case 2:
return VERTEX_FORMAT_HALF2;
case 3:
return VERTEX_FORMAT_HALF3;
case 4:
return VERTEX_FORMAT_HALF4;
default:
UNREACHABLE();
break;
}
case GL_FIXED:
switch (components)
{
case 1:
return VERTEX_FORMAT_FIXED1;
case 2:
return VERTEX_FORMAT_FIXED2;
case 3:
return VERTEX_FORMAT_FIXED3;
case 4:
return VERTEX_FORMAT_FIXED4;
default:
UNREACHABLE();
break;
}
case GL_INT_2_10_10_10_REV:
if (pureInteger)
return VERTEX_FORMAT_SINT210_INT;
if (normalized)
return VERTEX_FORMAT_SINT210_NORM;
return VERTEX_FORMAT_SINT210;
case GL_UNSIGNED_INT_2_10_10_10_REV:
if (pureInteger)
return VERTEX_FORMAT_UINT210_INT;
if (normalized)
return VERTEX_FORMAT_UINT210_NORM;
return VERTEX_FORMAT_UINT210;
default:
UNREACHABLE();
break;
}
return VERTEX_FORMAT_UBYTE1;
}
VertexFormatType GetVertexFormatType(const VertexAttribute &attrib)
{
return GetVertexFormatType(attrib.type, attrib.normalized, attrib.size, attrib.pureInteger);
}
VertexFormatType GetVertexFormatType(const VertexAttribute &attrib, GLenum currentValueType)
{
if (!attrib.enabled)
{
return GetVertexFormatType(currentValueType, GL_FALSE, 4, (currentValueType != GL_FLOAT));
}
return GetVertexFormatType(attrib);
}
const VertexFormat &GetVertexFormatFromType(VertexFormatType vertexFormatType)
{
switch (vertexFormatType)
{
case VERTEX_FORMAT_SBYTE1:
{
static const VertexFormat format(GL_BYTE, GL_FALSE, 1, false);
return format;
}
case VERTEX_FORMAT_SBYTE1_NORM:
{
static const VertexFormat format(GL_BYTE, GL_TRUE, 1, false);
return format;
}
case VERTEX_FORMAT_SBYTE2:
{
static const VertexFormat format(GL_BYTE, GL_FALSE, 2, false);
return format;
}
case VERTEX_FORMAT_SBYTE2_NORM:
{
static const VertexFormat format(GL_BYTE, GL_TRUE, 2, false);
return format;
}
case VERTEX_FORMAT_SBYTE3:
{
static const VertexFormat format(GL_BYTE, GL_FALSE, 3, false);
return format;
}
case VERTEX_FORMAT_SBYTE3_NORM:
{
static const VertexFormat format(GL_BYTE, GL_TRUE, 3, false);
return format;
}
case VERTEX_FORMAT_SBYTE4:
{
static const VertexFormat format(GL_BYTE, GL_FALSE, 4, false);
return format;
}
case VERTEX_FORMAT_SBYTE4_NORM:
{
static const VertexFormat format(GL_BYTE, GL_TRUE, 4, false);
return format;
}
case VERTEX_FORMAT_UBYTE1:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 1, false);
return format;
}
case VERTEX_FORMAT_UBYTE1_NORM:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 1, false);
return format;
}
case VERTEX_FORMAT_UBYTE2:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 2, false);
return format;
}
case VERTEX_FORMAT_UBYTE2_NORM:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 2, false);
return format;
}
case VERTEX_FORMAT_UBYTE3:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 3, false);
return format;
}
case VERTEX_FORMAT_UBYTE3_NORM:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 3, false);
return format;
}
case VERTEX_FORMAT_UBYTE4:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 4, false);
return format;
}
case VERTEX_FORMAT_UBYTE4_NORM:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 4, false);
return format;
}
case VERTEX_FORMAT_SSHORT1:
{
static const VertexFormat format(GL_SHORT, GL_FALSE, 1, false);
return format;
}
case VERTEX_FORMAT_SSHORT1_NORM:
{
static const VertexFormat format(GL_SHORT, GL_TRUE, 1, false);
return format;
}
case VERTEX_FORMAT_SSHORT2:
{
static const VertexFormat format(GL_SHORT, GL_FALSE, 2, false);
return format;
}
case VERTEX_FORMAT_SSHORT2_NORM:
{
static const VertexFormat format(GL_SHORT, GL_TRUE, 2, false);
return format;
}
case VERTEX_FORMAT_SSHORT3:
{
static const VertexFormat format(GL_SHORT, GL_FALSE, 3, false);
return format;
}
case VERTEX_FORMAT_SSHORT3_NORM:
{
static const VertexFormat format(GL_SHORT, GL_TRUE, 3, false);
return format;
}
case VERTEX_FORMAT_SSHORT4:
{
static const VertexFormat format(GL_SHORT, GL_FALSE, 4, false);
return format;
}
case VERTEX_FORMAT_SSHORT4_NORM:
{
static const VertexFormat format(GL_SHORT, GL_TRUE, 4, false);
return format;
}
case VERTEX_FORMAT_USHORT1:
{
static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 1, false);
return format;
}
case VERTEX_FORMAT_USHORT1_NORM:
{
static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 1, false);
return format;
}
case VERTEX_FORMAT_USHORT2:
{
static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 2, false);
return format;
}
case VERTEX_FORMAT_USHORT2_NORM:
{
static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 2, false);
return format;
}
case VERTEX_FORMAT_USHORT3:
{
static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 3, false);
return format;
}
case VERTEX_FORMAT_USHORT3_NORM:
{
static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 3, false);
return format;
}
case VERTEX_FORMAT_USHORT4:
{
static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 4, false);
return format;
}
case VERTEX_FORMAT_USHORT4_NORM:
{
static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 4, false);
return format;
}
case VERTEX_FORMAT_SINT1:
{
static const VertexFormat format(GL_INT, GL_FALSE, 1, false);
return format;
}
case VERTEX_FORMAT_SINT1_NORM:
{
static const VertexFormat format(GL_INT, GL_TRUE, 1, false);
return format;
}
case VERTEX_FORMAT_SINT2:
{
static const VertexFormat format(GL_INT, GL_FALSE, 2, false);
return format;
}
case VERTEX_FORMAT_SINT2_NORM:
{
static const VertexFormat format(GL_INT, GL_TRUE, 2, false);
return format;
}
case VERTEX_FORMAT_SINT3:
{
static const VertexFormat format(GL_INT, GL_FALSE, 3, false);
return format;
}
case VERTEX_FORMAT_SINT3_NORM:
{
static const VertexFormat format(GL_INT, GL_TRUE, 3, false);
return format;
}
case VERTEX_FORMAT_SINT4:
{
static const VertexFormat format(GL_INT, GL_FALSE, 4, false);
return format;
}
case VERTEX_FORMAT_SINT4_NORM:
{
static const VertexFormat format(GL_INT, GL_TRUE, 4, false);
return format;
}
case VERTEX_FORMAT_UINT1:
{
static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 1, false);
return format;
}
case VERTEX_FORMAT_UINT1_NORM:
{
static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 1, false);
return format;
}
case VERTEX_FORMAT_UINT2:
{
static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 2, false);
return format;
}
case VERTEX_FORMAT_UINT2_NORM:
{
static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 2, false);
return format;
}
case VERTEX_FORMAT_UINT3:
{
static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 3, false);
return format;
}
case VERTEX_FORMAT_UINT3_NORM:
{
static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 3, false);
return format;
}
case VERTEX_FORMAT_UINT4:
{
static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 4, false);
return format;
}
case VERTEX_FORMAT_UINT4_NORM:
{
static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 4, false);
return format;
}
case VERTEX_FORMAT_SBYTE1_INT:
{
static const VertexFormat format(GL_BYTE, GL_FALSE, 1, true);
return format;
}
case VERTEX_FORMAT_SBYTE2_INT:
{
static const VertexFormat format(GL_BYTE, GL_FALSE, 2, true);
return format;
}
case VERTEX_FORMAT_SBYTE3_INT:
{
static const VertexFormat format(GL_BYTE, GL_FALSE, 3, true);
return format;
}
case VERTEX_FORMAT_SBYTE4_INT:
{
static const VertexFormat format(GL_BYTE, GL_FALSE, 4, true);
return format;
}
case VERTEX_FORMAT_UBYTE1_INT:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 1, true);
return format;
}
case VERTEX_FORMAT_UBYTE2_INT:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 2, true);
return format;
}
case VERTEX_FORMAT_UBYTE3_INT:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 3, true);
return format;
}
case VERTEX_FORMAT_UBYTE4_INT:
{
static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 4, true);
return format;
}
case VERTEX_FORMAT_SSHORT1_INT:
{
static const VertexFormat format(GL_SHORT, GL_FALSE, 1, true);
return format;
}
case VERTEX_FORMAT_SSHORT2_INT:
{
static const VertexFormat format(GL_SHORT, GL_FALSE, 2, true);
return format;
}
case VERTEX_FORMAT_SSHORT3_INT:
{
static const VertexFormat format(GL_SHORT, GL_FALSE, 3, true);
return format;
}
case VERTEX_FORMAT_SSHORT4_INT:
{
static const VertexFormat format(GL_SHORT, GL_FALSE, 4, true);
return format;
}
case VERTEX_FORMAT_USHORT1_INT:
{
static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 1, true);
return format;
}
case VERTEX_FORMAT_USHORT2_INT:
{
static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 2, true);
return format;
}
case VERTEX_FORMAT_USHORT3_INT:
{
static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 3, true);
return format;
}
case VERTEX_FORMAT_USHORT4_INT:
{
static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 4, true);
return format;
}
case VERTEX_FORMAT_SINT1_INT:
{
static const VertexFormat format(GL_INT, GL_FALSE, 1, true);
return format;
}
case VERTEX_FORMAT_SINT2_INT:
{
static const VertexFormat format(GL_INT, GL_FALSE, 2, true);
return format;
}
case VERTEX_FORMAT_SINT3_INT:
{
static const VertexFormat format(GL_INT, GL_FALSE, 3, true);
return format;
}
case VERTEX_FORMAT_SINT4_INT:
{
static const VertexFormat format(GL_INT, GL_FALSE, 4, true);
return format;
}
case VERTEX_FORMAT_UINT1_INT:
{
static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 1, true);
return format;
}
case VERTEX_FORMAT_UINT2_INT:
{
static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 2, true);
return format;
}
case VERTEX_FORMAT_UINT3_INT:
{
static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 3, true);
return format;
}
case VERTEX_FORMAT_UINT4_INT:
{
static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 4, true);
return format;
}
case VERTEX_FORMAT_FIXED1:
{
static const VertexFormat format(GL_FIXED, GL_FALSE, 1, false);
return format;
}
case VERTEX_FORMAT_FIXED2:
{
static const VertexFormat format(GL_FIXED, GL_FALSE, 2, false);
return format;
}
case VERTEX_FORMAT_FIXED3:
{
static const VertexFormat format(GL_FIXED, GL_FALSE, 3, false);
return format;
}
case VERTEX_FORMAT_FIXED4:
{
static const VertexFormat format(GL_FIXED, GL_FALSE, 4, false);
return format;
}
case VERTEX_FORMAT_HALF1:
{
static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 1, false);
return format;
}
case VERTEX_FORMAT_HALF2:
{
static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 2, false);
return format;
}
case VERTEX_FORMAT_HALF3:
{
static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 3, false);
return format;
}
case VERTEX_FORMAT_HALF4:
{
static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 4, false);
return format;
}
case VERTEX_FORMAT_FLOAT1:
{
static const VertexFormat format(GL_FLOAT, GL_FALSE, 1, false);
return format;
}
case VERTEX_FORMAT_FLOAT2:
{
static const VertexFormat format(GL_FLOAT, GL_FALSE, 2, false);
return format;
}
case VERTEX_FORMAT_FLOAT3:
{
static const VertexFormat format(GL_FLOAT, GL_FALSE, 3, false);
return format;
}
case VERTEX_FORMAT_FLOAT4:
{
static const VertexFormat format(GL_FLOAT, GL_FALSE, 4, false);
return format;
}
case VERTEX_FORMAT_SINT210:
{
static const VertexFormat format(GL_INT_2_10_10_10_REV, GL_FALSE, 4, false);
return format;
}
case VERTEX_FORMAT_UINT210:
{
static const VertexFormat format(GL_UNSIGNED_INT_2_10_10_10_REV, GL_FALSE, 4, false);
return format;
}
case VERTEX_FORMAT_SINT210_NORM:
{
static const VertexFormat format(GL_INT_2_10_10_10_REV, GL_TRUE, 4, false);
return format;
}
case VERTEX_FORMAT_UINT210_NORM:
{
static const VertexFormat format(GL_UNSIGNED_INT_2_10_10_10_REV, GL_TRUE, 4, false);
return format;
}
case VERTEX_FORMAT_SINT210_INT:
{
static const VertexFormat format(GL_INT_2_10_10_10_REV, GL_FALSE, 4, true);
return format;
}
case VERTEX_FORMAT_UINT210_INT:
{
static const VertexFormat format(GL_UNSIGNED_INT_2_10_10_10_REV, GL_FALSE, 4, true);
return format;
}
default:
{
static const VertexFormat format(GL_NONE, GL_FALSE, 0, false);
return format;
}
}
}
size_t GetVertexFormatTypeSize(VertexFormatType vertexFormatType)
{
switch (vertexFormatType)
{
case VERTEX_FORMAT_SBYTE1:
case VERTEX_FORMAT_SBYTE1_NORM:
case VERTEX_FORMAT_UBYTE1:
case VERTEX_FORMAT_UBYTE1_NORM:
case VERTEX_FORMAT_SBYTE1_INT:
case VERTEX_FORMAT_UBYTE1_INT:
return 1;
case VERTEX_FORMAT_SBYTE2:
case VERTEX_FORMAT_SBYTE2_NORM:
case VERTEX_FORMAT_UBYTE2:
case VERTEX_FORMAT_UBYTE2_NORM:
case VERTEX_FORMAT_SBYTE2_INT:
case VERTEX_FORMAT_UBYTE2_INT:
case VERTEX_FORMAT_SSHORT1:
case VERTEX_FORMAT_SSHORT1_NORM:
case VERTEX_FORMAT_USHORT1:
case VERTEX_FORMAT_USHORT1_NORM:
case VERTEX_FORMAT_SSHORT1_INT:
case VERTEX_FORMAT_USHORT1_INT:
case VERTEX_FORMAT_HALF1:
return 2;
case VERTEX_FORMAT_SBYTE3:
case VERTEX_FORMAT_SBYTE3_NORM:
case VERTEX_FORMAT_UBYTE3:
case VERTEX_FORMAT_UBYTE3_NORM:
case VERTEX_FORMAT_SBYTE3_INT:
case VERTEX_FORMAT_UBYTE3_INT:
return 3;
case VERTEX_FORMAT_SBYTE4:
case VERTEX_FORMAT_SBYTE4_NORM:
case VERTEX_FORMAT_UBYTE4:
case VERTEX_FORMAT_UBYTE4_NORM:
case VERTEX_FORMAT_SBYTE4_INT:
case VERTEX_FORMAT_UBYTE4_INT:
case VERTEX_FORMAT_SSHORT2:
case VERTEX_FORMAT_SSHORT2_NORM:
case VERTEX_FORMAT_USHORT2:
case VERTEX_FORMAT_USHORT2_NORM:
case VERTEX_FORMAT_SSHORT2_INT:
case VERTEX_FORMAT_USHORT2_INT:
case VERTEX_FORMAT_SINT1:
case VERTEX_FORMAT_SINT1_NORM:
case VERTEX_FORMAT_UINT1:
case VERTEX_FORMAT_UINT1_NORM:
case VERTEX_FORMAT_SINT1_INT:
case VERTEX_FORMAT_UINT1_INT:
case VERTEX_FORMAT_HALF2:
case VERTEX_FORMAT_FIXED1:
case VERTEX_FORMAT_FLOAT1:
case VERTEX_FORMAT_SINT210:
case VERTEX_FORMAT_UINT210:
case VERTEX_FORMAT_SINT210_NORM:
case VERTEX_FORMAT_UINT210_NORM:
case VERTEX_FORMAT_SINT210_INT:
case VERTEX_FORMAT_UINT210_INT:
return 4;
case VERTEX_FORMAT_SSHORT3:
case VERTEX_FORMAT_SSHORT3_NORM:
case VERTEX_FORMAT_USHORT3:
case VERTEX_FORMAT_USHORT3_NORM:
case VERTEX_FORMAT_SSHORT3_INT:
case VERTEX_FORMAT_USHORT3_INT:
case VERTEX_FORMAT_HALF3:
return 6;
case VERTEX_FORMAT_SSHORT4:
case VERTEX_FORMAT_SSHORT4_NORM:
case VERTEX_FORMAT_USHORT4:
case VERTEX_FORMAT_USHORT4_NORM:
case VERTEX_FORMAT_SSHORT4_INT:
case VERTEX_FORMAT_USHORT4_INT:
case VERTEX_FORMAT_SINT2:
case VERTEX_FORMAT_SINT2_NORM:
case VERTEX_FORMAT_UINT2:
case VERTEX_FORMAT_UINT2_NORM:
case VERTEX_FORMAT_SINT2_INT:
case VERTEX_FORMAT_UINT2_INT:
case VERTEX_FORMAT_HALF4:
case VERTEX_FORMAT_FIXED2:
case VERTEX_FORMAT_FLOAT2:
return 8;
case VERTEX_FORMAT_SINT3:
case VERTEX_FORMAT_SINT3_NORM:
case VERTEX_FORMAT_UINT3:
case VERTEX_FORMAT_UINT3_NORM:
case VERTEX_FORMAT_SINT3_INT:
case VERTEX_FORMAT_UINT3_INT:
case VERTEX_FORMAT_FIXED3:
case VERTEX_FORMAT_FLOAT3:
return 12;
case VERTEX_FORMAT_SINT4:
case VERTEX_FORMAT_SINT4_NORM:
case VERTEX_FORMAT_UINT4:
case VERTEX_FORMAT_UINT4_NORM:
case VERTEX_FORMAT_SINT4_INT:
case VERTEX_FORMAT_UINT4_INT:
case VERTEX_FORMAT_FIXED4:
case VERTEX_FORMAT_FLOAT4:
return 16;
case VERTEX_FORMAT_INVALID:
default:
UNREACHABLE();
return 0;
}
}
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);
}
}