blob: 807eb3d3538b531d2bd6a06c3d504c0fa79c09e9 [file] [log] [blame]
//
// Copyright 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.
//
#include "libANGLE/Caps.h"
#include "anglebase/no_destructor.h"
#include "common/angleutils.h"
#include "common/debug.h"
#include "libANGLE/formatutils.h"
#include "angle_gl.h"
#include <algorithm>
#include <sstream>
static void InsertExtensionString(const std::string &extension,
bool supported,
std::vector<std::string> *extensionVector)
{
if (supported)
{
extensionVector->push_back(extension);
}
}
namespace gl
{
TextureCaps::TextureCaps() = default;
TextureCaps::TextureCaps(const TextureCaps &other) = default;
TextureCaps::~TextureCaps() = default;
GLuint TextureCaps::getMaxSamples() const
{
return !sampleCounts.empty() ? *sampleCounts.rbegin() : 0;
}
GLuint TextureCaps::getNearestSamples(GLuint requestedSamples) const
{
if (requestedSamples == 0)
{
return 0;
}
for (SupportedSampleSet::const_iterator i = sampleCounts.begin(); i != sampleCounts.end(); i++)
{
GLuint samples = *i;
if (samples >= requestedSamples)
{
return samples;
}
}
return 0;
}
TextureCaps GenerateMinimumTextureCaps(GLenum sizedInternalFormat,
const Version &clientVersion,
const Extensions &extensions)
{
TextureCaps caps;
const InternalFormat &internalFormatInfo = GetSizedInternalFormatInfo(sizedInternalFormat);
caps.texturable = internalFormatInfo.textureSupport(clientVersion, extensions);
caps.filterable = internalFormatInfo.filterSupport(clientVersion, extensions);
caps.textureAttachment = internalFormatInfo.textureAttachmentSupport(clientVersion, extensions);
caps.renderbuffer = internalFormatInfo.renderbufferSupport(clientVersion, extensions);
caps.sampleCounts.insert(0);
if (internalFormatInfo.isRequiredRenderbufferFormat(clientVersion))
{
if ((clientVersion.major >= 3 && clientVersion.minor >= 1) ||
(clientVersion.major >= 3 && !internalFormatInfo.isInt()))
{
caps.sampleCounts.insert(4);
}
}
return caps;
}
TextureCapsMap::TextureCapsMap() {}
TextureCapsMap::~TextureCapsMap() {}
void TextureCapsMap::insert(GLenum internalFormat, const TextureCaps &caps)
{
angle::FormatID formatID = angle::Format::InternalFormatToID(internalFormat);
get(formatID) = caps;
}
void TextureCapsMap::clear()
{
mFormatData.fill(TextureCaps());
}
const TextureCaps &TextureCapsMap::get(GLenum internalFormat) const
{
angle::FormatID formatID = angle::Format::InternalFormatToID(internalFormat);
return get(formatID);
}
const TextureCaps &TextureCapsMap::get(angle::FormatID formatID) const
{
return mFormatData[static_cast<size_t>(formatID)];
}
TextureCaps &TextureCapsMap::get(angle::FormatID formatID)
{
return mFormatData[static_cast<size_t>(formatID)];
}
void TextureCapsMap::set(angle::FormatID formatID, const TextureCaps &caps)
{
get(formatID) = caps;
}
void InitMinimumTextureCapsMap(const Version &clientVersion,
const Extensions &extensions,
TextureCapsMap *capsMap)
{
for (GLenum internalFormat : GetAllSizedInternalFormats())
{
capsMap->insert(internalFormat,
GenerateMinimumTextureCaps(internalFormat, clientVersion, extensions));
}
}
Extensions::Extensions() = default;
Extensions::Extensions(const Extensions &other) = default;
std::vector<std::string> Extensions::getStrings() const
{
std::vector<std::string> extensionStrings;
for (const auto &extensionInfo : GetExtensionInfoMap())
{
if (this->*(extensionInfo.second.ExtensionsMember))
{
extensionStrings.push_back(extensionInfo.first);
}
}
return extensionStrings;
}
Limitations::Limitations() = default;
static bool GetFormatSupportBase(const TextureCapsMap &textureCaps,
const GLenum *requiredFormats,
size_t requiredFormatsSize,
bool requiresTexturing,
bool requiresFiltering,
bool requiresAttachingTexture,
bool requiresRenderbufferSupport)
{
for (size_t i = 0; i < requiredFormatsSize; i++)
{
const TextureCaps &cap = textureCaps.get(requiredFormats[i]);
if (requiresTexturing && !cap.texturable)
{
return false;
}
if (requiresFiltering && !cap.filterable)
{
return false;
}
if (requiresAttachingTexture && !cap.textureAttachment)
{
return false;
}
if (requiresRenderbufferSupport && !cap.renderbuffer)
{
return false;
}
}
return true;
}
template <size_t N>
static bool GetFormatSupport(const TextureCapsMap &textureCaps,
const GLenum (&requiredFormats)[N],
bool requiresTexturing,
bool requiresFiltering,
bool requiresAttachingTexture,
bool requiresRenderbufferSupport)
{
return GetFormatSupportBase(textureCaps, requiredFormats, N, requiresTexturing,
requiresFiltering, requiresAttachingTexture,
requiresRenderbufferSupport);
}
// Check for GL_OES_packed_depth_stencil
static bool DeterminePackedDepthStencilSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_DEPTH24_STENCIL8,
};
return GetFormatSupport(textureCaps, requiredFormats, false, false, true, true);
}
// Checks for GL_OES_rgb8_rgba8 support
static bool DetermineRGB8AndRGBA8TextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_RGB8,
GL_RGBA8,
};
return GetFormatSupport(textureCaps, requiredFormats, false, false, false, true);
}
// Checks for GL_EXT_texture_format_BGRA8888 support
static bool DetermineBGRA8TextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_BGRA8_EXT,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, true, true);
}
// Checks for GL_OES_color_buffer_half_float support
static bool DetermineColorBufferHalfFloatSupport(const TextureCapsMap &textureCaps)
{
// EXT_color_buffer_half_float issue #2 states that an implementation doesn't need to support
// rendering to any of the formats but is expected to be able to render to at least one. WebGL
// requires that at least RGBA16F is renderable so we make the same requirement.
constexpr GLenum requiredFormats[] = {
GL_RGBA16F,
};
return GetFormatSupport(textureCaps, requiredFormats, false, false, true, true);
}
// Checks for GL_OES_texture_half_float support
static bool DetermineHalfFloatTextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_RGBA16F, GL_RGB16F, GL_LUMINANCE_ALPHA16F_EXT, GL_LUMINANCE16F_EXT, GL_ALPHA16F_EXT,
};
return GetFormatSupport(textureCaps, requiredFormats, true, false, false, false);
}
// Checks for GL_OES_texture_half_float_linear support
static bool DetermineHalfFloatTextureFilteringSupport(const TextureCapsMap &textureCaps,
bool checkLegacyFormats)
{
constexpr GLenum requiredFormats[] = {GL_RGBA16F, GL_RGB16F};
// If GL_OES_texture_half_float is present, this extension must also support legacy formats
// introduced by that extension
constexpr GLenum requiredFormatsES2[] = {GL_LUMINANCE_ALPHA16F_EXT, GL_LUMINANCE16F_EXT,
GL_ALPHA16F_EXT};
if (checkLegacyFormats &&
!GetFormatSupport(textureCaps, requiredFormatsES2, false, true, false, false))
{
return false;
}
return GetFormatSupport(textureCaps, requiredFormats, false, true, false, false);
}
// Checks for GL_OES_texture_float support
static bool DetermineFloatTextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_RGBA32F, GL_RGB32F, GL_LUMINANCE_ALPHA32F_EXT, GL_LUMINANCE32F_EXT, GL_ALPHA32F_EXT,
};
return GetFormatSupport(textureCaps, requiredFormats, true, false, false, false);
}
// Checks for GL_OES_texture_float_linear support
static bool DetermineFloatTextureFilteringSupport(const TextureCapsMap &textureCaps,
bool checkLegacyFormats)
{
constexpr GLenum requiredFormats[] = {
GL_RGBA32F,
GL_RGB32F,
};
// If GL_OES_texture_float is present, this extension must also support legacy formats
// introduced by that extension
constexpr GLenum requiredFormatsES2[] = {
GL_LUMINANCE_ALPHA32F_EXT,
GL_LUMINANCE32F_EXT,
GL_ALPHA32F_EXT,
};
if (checkLegacyFormats &&
!GetFormatSupport(textureCaps, requiredFormatsES2, false, true, false, false))
{
return false;
}
return GetFormatSupport(textureCaps, requiredFormats, false, true, false, false);
}
// Checks for GL_EXT_texture_rg support
static bool DetermineRGTextureSupport(const TextureCapsMap &textureCaps,
bool checkHalfFloatFormats,
bool checkFloatFormats)
{
constexpr GLenum requiredFormats[] = {
GL_R8,
GL_RG8,
};
constexpr GLenum requiredHalfFloatFormats[] = {
GL_R16F,
GL_RG16F,
};
constexpr GLenum requiredFloatFormats[] = {
GL_R32F,
GL_RG32F,
};
if (checkHalfFloatFormats &&
!GetFormatSupport(textureCaps, requiredHalfFloatFormats, true, false, false, false))
{
return false;
}
if (checkFloatFormats &&
!GetFormatSupport(textureCaps, requiredFloatFormats, true, false, false, false))
{
return false;
}
return GetFormatSupport(textureCaps, requiredFormats, true, true, true, true);
}
// Check for GL_EXT_texture_compression_dxt1
static bool DetermineDXT1TextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_RGB_S3TC_DXT1_EXT,
GL_COMPRESSED_RGBA_S3TC_DXT1_EXT,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for GL_ANGLE_texture_compression_dxt3
static bool DetermineDXT3TextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for GL_ANGLE_texture_compression_dxt5
static bool DetermineDXT5TextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for GL_EXT_texture_compression_s3tc_srgb
static bool DetermineS3TCsRGBTextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_SRGB_S3TC_DXT1_EXT,
GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT,
GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT,
GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for GL_KHR_texture_compression_astc_ldr
static bool DetermineASTCLDRTextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_RGBA_ASTC_4x4_KHR, GL_COMPRESSED_RGBA_ASTC_5x4_KHR,
GL_COMPRESSED_RGBA_ASTC_5x5_KHR, GL_COMPRESSED_RGBA_ASTC_6x5_KHR,
GL_COMPRESSED_RGBA_ASTC_6x6_KHR, GL_COMPRESSED_RGBA_ASTC_8x5_KHR,
GL_COMPRESSED_RGBA_ASTC_8x6_KHR, GL_COMPRESSED_RGBA_ASTC_8x8_KHR,
GL_COMPRESSED_RGBA_ASTC_10x5_KHR, GL_COMPRESSED_RGBA_ASTC_10x6_KHR,
GL_COMPRESSED_RGBA_ASTC_10x8_KHR, GL_COMPRESSED_RGBA_ASTC_10x10_KHR,
GL_COMPRESSED_RGBA_ASTC_12x10_KHR, GL_COMPRESSED_RGBA_ASTC_12x12_KHR,
GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR,
GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR,
GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR,
GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR,
GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR,
GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR,
GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for GL_OES_texture_compression_astc
static bool DetermineASTCOESTExtureSupport(const TextureCapsMap &textureCaps)
{
if (!DetermineASTCLDRTextureSupport(textureCaps))
{
return false;
}
// The OES version of the extension also requires the 3D ASTC formats
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_RGBA_ASTC_3x3x3_OES, GL_COMPRESSED_RGBA_ASTC_4x3x3_OES,
GL_COMPRESSED_RGBA_ASTC_4x4x3_OES, GL_COMPRESSED_RGBA_ASTC_4x4x4_OES,
GL_COMPRESSED_RGBA_ASTC_5x4x4_OES, GL_COMPRESSED_RGBA_ASTC_5x5x4_OES,
GL_COMPRESSED_RGBA_ASTC_5x5x5_OES, GL_COMPRESSED_RGBA_ASTC_6x5x5_OES,
GL_COMPRESSED_RGBA_ASTC_6x6x5_OES, GL_COMPRESSED_RGBA_ASTC_6x6x6_OES,
GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES,
GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES,
GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES,
GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES,
GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for GL_ETC1_RGB8_OES
static bool DetermineETC1RGB8TextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_ETC1_RGB8_OES,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for OES_compressed_ETC2_RGB8_texture
static bool DetermineETC2RGB8TextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_RGB8_ETC2,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for OES_compressed_ETC2_sRGB8_texture
static bool DetermineETC2sRGB8TextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_SRGB8_ETC2,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for OES_compressed_ETC2_punchthroughA_RGBA8_texture
static bool DetermineETC2PunchthroughARGB8TextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture
static bool DetermineETC2PunchthroughAsRGB8AlphaTextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for OES_compressed_ETC2_RGBA8_texture
static bool DetermineETC2RGBA8TextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_RGBA8_ETC2_EAC,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for OES_compressed_ETC2_sRGB8_alpha8_texture
static bool DetermineETC2sRGB8Alpha8TextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for OES_compressed_EAC_R11_unsigned_texture
static bool DetermineEACR11UnsignedTextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_R11_EAC,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for OES_compressed_EAC_R11_signed_texture
static bool DetermineEACR11SignedTextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_SIGNED_R11_EAC,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for OES_compressed_EAC_RG11_unsigned_texture
static bool DetermineEACRG11UnsignedTextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_RG11_EAC,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for OES_compressed_EAC_RG11_signed_texture
static bool DetermineEACRG11SignedTextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_SIGNED_RG11_EAC,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
// Check for GL_EXT_sRGB
static bool DetermineSRGBTextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFilterFormats[] = {
GL_SRGB8,
GL_SRGB8_ALPHA8,
};
constexpr GLenum requiredRenderFormats[] = {
GL_SRGB8_ALPHA8,
};
return GetFormatSupport(textureCaps, requiredFilterFormats, true, true, false, false) &&
GetFormatSupport(textureCaps, requiredRenderFormats, true, false, true, true);
}
// Check for GL_ANGLE_depth_texture
static bool DetermineDepthTextureANGLESupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_DEPTH_COMPONENT16,
GL_DEPTH_COMPONENT32_OES,
GL_DEPTH24_STENCIL8_OES,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, true, true);
}
// Check for GL_OES_depth_texture
static bool DetermineDepthTextureOESSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_DEPTH_COMPONENT16,
GL_DEPTH_COMPONENT32_OES,
};
return GetFormatSupport(textureCaps, requiredFormats, true, true, true, true);
}
// Check for GL_OES_depth24
static bool DetermineDepth24OESSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_DEPTH_COMPONENT24_OES,
};
return GetFormatSupport(textureCaps, requiredFormats, false, false, false, true);
}
// Check for GL_OES_depth32
static bool DetermineDepth32Support(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_DEPTH_COMPONENT32_OES,
};
return GetFormatSupport(textureCaps, requiredFormats, false, false, true, true);
}
// Check for GL_CHROMIUM_color_buffer_float_rgb
static bool DetermineColorBufferFloatRGBSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_RGB32F,
};
return GetFormatSupport(textureCaps, requiredFormats, true, false, true, false);
}
// Check for GL_CHROMIUM_color_buffer_float_rgba
static bool DetermineColorBufferFloatRGBASupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_RGBA32F,
};
return GetFormatSupport(textureCaps, requiredFormats, true, false, true, true);
}
// Check for GL_EXT_color_buffer_float
static bool DetermineColorBufferFloatSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_R16F, GL_RG16F, GL_RGBA16F, GL_R32F, GL_RG32F, GL_RGBA32F, GL_R11F_G11F_B10F,
};
return GetFormatSupport(textureCaps, requiredFormats, true, false, true, true);
}
// Check for GL_EXT_texture_norm16
static bool DetermineTextureNorm16Support(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFilterFormats[] = {
GL_R16_EXT, GL_RG16_EXT, GL_RGB16_EXT, GL_RGBA16_EXT,
GL_R16_SNORM_EXT, GL_RG16_SNORM_EXT, GL_RGB16_SNORM_EXT, GL_RGBA16_SNORM_EXT,
};
constexpr GLenum requiredRenderFormats[] = {
GL_R16_EXT,
GL_RG16_EXT,
GL_RGBA16_EXT,
};
return GetFormatSupport(textureCaps, requiredFilterFormats, true, true, false, false) &&
GetFormatSupport(textureCaps, requiredRenderFormats, true, false, true, true);
}
// Check for EXT_texture_compression_bptc
static bool DetermineBPTCTextureSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {
GL_COMPRESSED_RGBA_BPTC_UNORM_EXT, GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT,
GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT, GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
bool DetermineCompressedTextureETCSupport(const TextureCapsMap &textureCaps)
{
constexpr GLenum requiredFormats[] = {GL_COMPRESSED_R11_EAC,
GL_COMPRESSED_SIGNED_R11_EAC,
GL_COMPRESSED_RG11_EAC,
GL_COMPRESSED_SIGNED_RG11_EAC,
GL_COMPRESSED_RGB8_ETC2,
GL_COMPRESSED_SRGB8_ETC2,
GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2,
GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2,
GL_COMPRESSED_RGBA8_ETC2_EAC,
GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC};
return GetFormatSupport(textureCaps, requiredFormats, true, true, false, false);
}
void Extensions::setTextureExtensionSupport(const TextureCapsMap &textureCaps)
{
// TODO(ynovikov): rgb8rgba8, colorBufferHalfFloat, textureHalfFloat, textureHalfFloatLinear,
// textureFloat, textureFloatLinear, textureRG, sRGB, colorBufferFloatRGB, colorBufferFloatRGBA
// and colorBufferFloat were verified. Verify the rest.
packedDepthStencil = DeterminePackedDepthStencilSupport(textureCaps);
rgb8rgba8 = DetermineRGB8AndRGBA8TextureSupport(textureCaps);
textureFormatBGRA8888 = DetermineBGRA8TextureSupport(textureCaps);
textureHalfFloat = DetermineHalfFloatTextureSupport(textureCaps);
textureHalfFloatLinear =
DetermineHalfFloatTextureFilteringSupport(textureCaps, textureHalfFloat);
textureFloat = DetermineFloatTextureSupport(textureCaps);
textureFloatLinear = DetermineFloatTextureFilteringSupport(textureCaps, textureFloat);
textureRG = DetermineRGTextureSupport(textureCaps, textureHalfFloat, textureFloat);
colorBufferHalfFloat = textureHalfFloat && DetermineColorBufferHalfFloatSupport(textureCaps);
textureCompressionDXT1 = DetermineDXT1TextureSupport(textureCaps);
textureCompressionDXT3 = DetermineDXT3TextureSupport(textureCaps);
textureCompressionDXT5 = DetermineDXT5TextureSupport(textureCaps);
textureCompressionS3TCsRGB = DetermineS3TCsRGBTextureSupport(textureCaps);
textureCompressionASTCLDRKHR = DetermineASTCLDRTextureSupport(textureCaps);
textureCompressionASTCOES = DetermineASTCOESTExtureSupport(textureCaps);
compressedETC1RGB8Texture = DetermineETC1RGB8TextureSupport(textureCaps);
compressedETC2RGB8Texture = DetermineETC2RGB8TextureSupport(textureCaps);
compressedETC2sRGB8Texture = DetermineETC2sRGB8TextureSupport(textureCaps);
compressedETC2PunchthroughARGB8Texture =
DetermineETC2PunchthroughARGB8TextureSupport(textureCaps);
compressedETC2PunchthroughAsRGB8AlphaTexture =
DetermineETC2PunchthroughAsRGB8AlphaTextureSupport(textureCaps);
compressedETC2RGBA8Texture = DetermineETC2RGBA8TextureSupport(textureCaps);
compressedETC2sRGB8Alpha8Texture = DetermineETC2sRGB8Alpha8TextureSupport(textureCaps);
compressedEACR11UnsignedTexture = DetermineEACR11UnsignedTextureSupport(textureCaps);
compressedEACR11SignedTexture = DetermineEACR11SignedTextureSupport(textureCaps);
compressedEACRG11UnsignedTexture = DetermineEACRG11UnsignedTextureSupport(textureCaps);
compressedEACRG11SignedTexture = DetermineEACRG11SignedTextureSupport(textureCaps);
sRGB = DetermineSRGBTextureSupport(textureCaps);
depthTextureANGLE = DetermineDepthTextureANGLESupport(textureCaps);
depthTextureOES = DetermineDepthTextureOESSupport(textureCaps);
depth24OES = DetermineDepth24OESSupport(textureCaps);
depth32 = DetermineDepth32Support(textureCaps);
colorBufferFloatRGB = DetermineColorBufferFloatRGBSupport(textureCaps);
colorBufferFloatRGBA = DetermineColorBufferFloatRGBASupport(textureCaps);
colorBufferFloat = DetermineColorBufferFloatSupport(textureCaps);
textureNorm16 = DetermineTextureNorm16Support(textureCaps);
textureCompressionBPTC = DetermineBPTCTextureSupport(textureCaps);
}
const ExtensionInfoMap &GetExtensionInfoMap()
{
auto buildExtensionInfoMap = []() {
auto enableableExtension = [](ExtensionInfo::ExtensionBool member) {
ExtensionInfo info;
info.Requestable = true;
info.ExtensionsMember = member;
return info;
};
auto esOnlyExtension = [](ExtensionInfo::ExtensionBool member) {
ExtensionInfo info;
info.ExtensionsMember = member;
return info;
};
// clang-format off
ExtensionInfoMap map;
map["GL_OES_element_index_uint"] = enableableExtension(&Extensions::elementIndexUint);
map["GL_OES_packed_depth_stencil"] = esOnlyExtension(&Extensions::packedDepthStencil);
map["GL_OES_get_program_binary"] = enableableExtension(&Extensions::getProgramBinary);
map["GL_OES_rgb8_rgba8"] = enableableExtension(&Extensions::rgb8rgba8);
map["GL_EXT_texture_format_BGRA8888"] = enableableExtension(&Extensions::textureFormatBGRA8888);
map["GL_EXT_texture_type_2_10_10_10_REV"] = enableableExtension(&Extensions::textureFormat2101010REV);
map["GL_EXT_read_format_bgra"] = esOnlyExtension(&Extensions::readFormatBGRA);
map["GL_NV_pixel_buffer_object"] = enableableExtension(&Extensions::pixelBufferObject);
map["GL_OES_mapbuffer"] = enableableExtension(&Extensions::mapBuffer);
map["GL_EXT_map_buffer_range"] = enableableExtension(&Extensions::mapBufferRange);
map["GL_EXT_color_buffer_half_float"] = enableableExtension(&Extensions::colorBufferHalfFloat);
map["GL_OES_texture_half_float"] = enableableExtension(&Extensions::textureHalfFloat);
map["GL_OES_texture_half_float_linear"] = enableableExtension(&Extensions::textureHalfFloatLinear);
map["GL_OES_texture_float"] = enableableExtension(&Extensions::textureFloat);
map["GL_OES_texture_float_linear"] = enableableExtension(&Extensions::textureFloatLinear);
map["GL_EXT_texture_rg"] = enableableExtension(&Extensions::textureRG);
map["GL_EXT_texture_compression_dxt1"] = enableableExtension(&Extensions::textureCompressionDXT1);
map["GL_ANGLE_texture_compression_dxt3"] = enableableExtension(&Extensions::textureCompressionDXT3);
map["GL_ANGLE_texture_compression_dxt5"] = enableableExtension(&Extensions::textureCompressionDXT5);
map["GL_EXT_texture_compression_s3tc_srgb"] = enableableExtension(&Extensions::textureCompressionS3TCsRGB);
map["GL_KHR_texture_compression_astc_ldr"] = enableableExtension(&Extensions::textureCompressionASTCLDRKHR);
map["GL_KHR_texture_compression_astc_hdr"] = enableableExtension(&Extensions::textureCompressionASTCHDRKHR);
map["GL_OES_texture_compression_astc"] = enableableExtension(&Extensions::textureCompressionASTCOES);
map["GL_EXT_texture_compression_bptc"] = enableableExtension(&Extensions::textureCompressionBPTC);
map["GL_OES_compressed_ETC1_RGB8_texture"] = enableableExtension(&Extensions::compressedETC1RGB8Texture);
map["OES_compressed_ETC2_RGB8_texture"] = enableableExtension(&Extensions::compressedETC2RGB8Texture);
map["OES_compressed_ETC2_sRGB8_texture"] = enableableExtension(&Extensions::compressedETC2sRGB8Texture);
map["OES_compressed_ETC2_punchthroughA_RGBA8_texture"] = enableableExtension(&Extensions::compressedETC2PunchthroughARGB8Texture);
map["OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture"] = enableableExtension(&Extensions::compressedETC2PunchthroughAsRGB8AlphaTexture);
map["OES_compressed_ETC2_RGBA8_texture"] = enableableExtension(&Extensions::compressedETC2RGBA8Texture);
map["OES_compressed_ETC2_sRGB8_alpha8_texture"] = enableableExtension(&Extensions::compressedETC2sRGB8Alpha8Texture);
map["OES_compressed_EAC_R11_unsigned_texture"] = enableableExtension(&Extensions::compressedEACR11UnsignedTexture);
map["OES_compressed_EAC_R11_signed_texture"] = enableableExtension(&Extensions::compressedEACR11SignedTexture);
map["OES_compressed_EAC_RG11_unsigned_texture"] = enableableExtension(&Extensions::compressedEACRG11UnsignedTexture);
map["OES_compressed_EAC_RG11_signed_texture"] = enableableExtension(&Extensions::compressedEACRG11SignedTexture);
map["GL_ANGLE_compressed_texture_etc"] = enableableExtension(&Extensions::compressedTextureETC);
map["GL_EXT_sRGB"] = enableableExtension(&Extensions::sRGB);
map["GL_ANGLE_depth_texture"] = esOnlyExtension(&Extensions::depthTextureANGLE);
map["GL_OES_depth_texture"] = esOnlyExtension(&Extensions::depthTextureOES);
map["GL_OES_depth24"] = esOnlyExtension(&Extensions::depth24OES);
map["GL_OES_depth32"] = esOnlyExtension(&Extensions::depth32);
map["GL_OES_texture_3D"] = enableableExtension(&Extensions::texture3DOES);
map["GL_EXT_texture_storage"] = enableableExtension(&Extensions::textureStorage);
map["GL_OES_texture_npot"] = enableableExtension(&Extensions::textureNPOT);
map["GL_EXT_draw_buffers"] = enableableExtension(&Extensions::drawBuffers);
map["GL_EXT_texture_filter_anisotropic"] = enableableExtension(&Extensions::textureFilterAnisotropic);
map["GL_EXT_occlusion_query_boolean"] = enableableExtension(&Extensions::occlusionQueryBoolean);
map["GL_NV_fence"] = esOnlyExtension(&Extensions::fence);
map["GL_EXT_disjoint_timer_query"] = enableableExtension(&Extensions::disjointTimerQuery);
map["GL_EXT_robustness"] = esOnlyExtension(&Extensions::robustness);
map["GL_KHR_robust_buffer_access_behavior"] = esOnlyExtension(&Extensions::robustBufferAccessBehavior);
map["GL_EXT_blend_minmax"] = enableableExtension(&Extensions::blendMinMax);
map["GL_ANGLE_framebuffer_blit"] = enableableExtension(&Extensions::framebufferBlit);
map["GL_ANGLE_framebuffer_multisample"] = enableableExtension(&Extensions::framebufferMultisample);
map["GL_EXT_multisampled_render_to_texture"] = enableableExtension(&Extensions::multisampledRenderToTexture);
map["GL_ANGLE_instanced_arrays"] = enableableExtension(&Extensions::instancedArraysANGLE);
map["GL_EXT_instanced_arrays"] = enableableExtension(&Extensions::instancedArraysEXT);
map["GL_ANGLE_pack_reverse_row_order"] = enableableExtension(&Extensions::packReverseRowOrder);
map["GL_OES_standard_derivatives"] = enableableExtension(&Extensions::standardDerivatives);
map["GL_EXT_shader_texture_lod"] = enableableExtension(&Extensions::shaderTextureLOD);
map["GL_EXT_frag_depth"] = enableableExtension(&Extensions::fragDepth);
map["GL_OVR_multiview"] = enableableExtension(&Extensions::multiview);
map["GL_OVR_multiview2"] = enableableExtension(&Extensions::multiview2);
map["GL_ANGLE_texture_usage"] = enableableExtension(&Extensions::textureUsage);
map["GL_ANGLE_translated_shader_source"] = esOnlyExtension(&Extensions::translatedShaderSource);
map["GL_OES_fbo_render_mipmap"] = enableableExtension(&Extensions::fboRenderMipmap);
map["GL_EXT_discard_framebuffer"] = esOnlyExtension(&Extensions::discardFramebuffer);
map["GL_EXT_debug_marker"] = esOnlyExtension(&Extensions::debugMarker);
map["GL_OES_EGL_image"] = enableableExtension(&Extensions::eglImage);
map["GL_OES_EGL_image_external"] = enableableExtension(&Extensions::eglImageExternal);
map["GL_OES_EGL_image_external_essl3"] = enableableExtension(&Extensions::eglImageExternalEssl3);
map["GL_OES_EGL_sync"] = esOnlyExtension(&Extensions::eglSync);
map["GL_EXT_memory_object"] = enableableExtension(&Extensions::memoryObject);
map["GL_EXT_memory_object_fd"] = enableableExtension(&Extensions::memoryObjectFd);
map["GL_EXT_semaphore"] = enableableExtension(&Extensions::semaphore);
map["GL_EXT_semaphore_fd"] = enableableExtension(&Extensions::semaphoreFd);
map["GL_NV_EGL_stream_consumer_external"] = enableableExtension(&Extensions::eglStreamConsumerExternal);
map["GL_EXT_unpack_subimage"] = enableableExtension(&Extensions::unpackSubimage);
map["GL_NV_pack_subimage"] = enableableExtension(&Extensions::packSubimage);
map["GL_EXT_color_buffer_float"] = enableableExtension(&Extensions::colorBufferFloat);
map["GL_OES_vertex_half_float"] = enableableExtension(&Extensions::vertexHalfFloat);
map["GL_OES_vertex_array_object"] = enableableExtension(&Extensions::vertexArrayObject);
map["GL_OES_vertex_type_10_10_10_2"] = enableableExtension(&Extensions::vertexAttribType1010102);
map["GL_KHR_debug"] = esOnlyExtension(&Extensions::debug);
map["GL_OES_texture_border_clamp"] = enableableExtension(&Extensions::textureBorderClamp);
// TODO(jmadill): Enable this when complete.
//map["GL_KHR_no_error"] = esOnlyExtension(&Extensions::noError);
map["GL_ANGLE_lossy_etc_decode"] = enableableExtension(&Extensions::lossyETCDecode);
map["GL_CHROMIUM_bind_uniform_location"] = esOnlyExtension(&Extensions::bindUniformLocation);
map["GL_CHROMIUM_sync_query"] = enableableExtension(&Extensions::syncQuery);
map["GL_CHROMIUM_copy_texture"] = esOnlyExtension(&Extensions::copyTexture);
map["GL_CHROMIUM_copy_compressed_texture"] = esOnlyExtension(&Extensions::copyCompressedTexture);
map["GL_ANGLE_copy_texture_3d"] = enableableExtension(&Extensions::copyTexture3d);
map["GL_ANGLE_webgl_compatibility"] = esOnlyExtension(&Extensions::webglCompatibility);
map["GL_ANGLE_request_extension"] = esOnlyExtension(&Extensions::requestExtension);
map["GL_CHROMIUM_bind_generates_resource"] = esOnlyExtension(&Extensions::bindGeneratesResource);
map["GL_ANGLE_robust_client_memory"] = esOnlyExtension(&Extensions::robustClientMemory);
map["GL_EXT_texture_sRGB_decode"] = esOnlyExtension(&Extensions::textureSRGBDecode);
map["GL_EXT_sRGB_write_control"] = esOnlyExtension(&Extensions::sRGBWriteControl);
map["GL_CHROMIUM_color_buffer_float_rgb"] = enableableExtension(&Extensions::colorBufferFloatRGB);
map["GL_CHROMIUM_color_buffer_float_rgba"] = enableableExtension(&Extensions::colorBufferFloatRGBA);
map["GL_EXT_multisample_compatibility"] = esOnlyExtension(&Extensions::multisampleCompatibility);
map["GL_CHROMIUM_framebuffer_mixed_samples"] = esOnlyExtension(&Extensions::framebufferMixedSamples);
map["GL_EXT_texture_norm16"] = esOnlyExtension(&Extensions::textureNorm16);
map["GL_CHROMIUM_path_rendering"] = esOnlyExtension(&Extensions::pathRendering);
map["GL_OES_surfaceless_context"] = esOnlyExtension(&Extensions::surfacelessContext);
map["GL_ANGLE_client_arrays"] = esOnlyExtension(&Extensions::clientArrays);
map["GL_ANGLE_robust_resource_initialization"] = esOnlyExtension(&Extensions::robustResourceInitialization);
map["GL_ANGLE_program_cache_control"] = esOnlyExtension(&Extensions::programCacheControl);
map["GL_ANGLE_texture_rectangle"] = enableableExtension(&Extensions::textureRectangle);
map["GL_EXT_geometry_shader"] = enableableExtension(&Extensions::geometryShader);
map["GL_ANGLE_explicit_context_gles1"] = enableableExtension(&Extensions::explicitContextGles1);
map["GL_ANGLE_explicit_context"] = enableableExtension(&Extensions::explicitContext);
map["GL_KHR_parallel_shader_compile"] = enableableExtension(&Extensions::parallelShaderCompile);
map["GL_OES_texture_storage_multisample_2d_array"] = enableableExtension(&Extensions::textureStorageMultisample2DArray);
map["GL_ANGLE_multiview_multisample"] = enableableExtension(&Extensions::multiviewMultisample);
map["GL_EXT_blend_func_extended"] = enableableExtension(&Extensions::blendFuncExtended);
map["GL_EXT_float_blend"] = enableableExtension(&Extensions::floatBlend);
map["GL_ANGLE_texture_multisample"] = enableableExtension(&Extensions::textureMultisample);
map["GL_ANGLE_multi_draw"] = enableableExtension(&Extensions::multiDraw);
map["GL_ANGLE_provoking_vertex"] = enableableExtension(&Extensions::provokingVertex);
map["GL_CHROMIUM_lose_context"] = enableableExtension(&Extensions::loseContextCHROMIUM);
map["GL_ANGLE_texture_external_update"] = enableableExtension(&Extensions::textureExternalUpdateANGLE);
map["GL_ANGLE_base_vertex_base_instance"] = enableableExtension(&Extensions::baseVertexBaseInstance);
// GLES1 extensinos
map["GL_OES_point_size_array"] = enableableExtension(&Extensions::pointSizeArray);
map["GL_OES_texture_cube_map"] = enableableExtension(&Extensions::textureCubeMap);
map["GL_OES_point_sprite"] = enableableExtension(&Extensions::pointSprite);
map["GL_OES_draw_texture"] = enableableExtension(&Extensions::drawTexture);
map["GL_ANGLE_memory_size"] = enableableExtension(&Extensions::memorySize);
// clang-format on
return map;
};
static const angle::base::NoDestructor<ExtensionInfoMap> extensionInfo(buildExtensionInfoMap());
return *extensionInfo;
}
TypePrecision::TypePrecision() = default;
TypePrecision::TypePrecision(const TypePrecision &other) = default;
void TypePrecision::setIEEEFloat()
{
range = {{127, 127}};
precision = 23;
}
void TypePrecision::setTwosComplementInt(unsigned int bits)
{
range = {{static_cast<GLint>(bits) - 1, static_cast<GLint>(bits) - 2}};
precision = 0;
}
void TypePrecision::setSimulatedFloat(unsigned int r, unsigned int p)
{
range = {{static_cast<GLint>(r), static_cast<GLint>(r)}};
precision = static_cast<GLint>(p);
}
void TypePrecision::setSimulatedInt(unsigned int r)
{
range = {{static_cast<GLint>(r), static_cast<GLint>(r)}};
precision = 0;
}
void TypePrecision::get(GLint *returnRange, GLint *returnPrecision) const
{
std::copy(range.begin(), range.end(), returnRange);
*returnPrecision = precision;
}
Caps::Caps() = default;
Caps::Caps(const Caps &other) = default;
Caps::~Caps() = default;
Caps GenerateMinimumCaps(const Version &clientVersion, const Extensions &extensions)
{
Caps caps;
// GLES1 emulation (Minimums taken from Table 6.20 / 6.22 (ES 1.1 spec))
if (clientVersion < Version(2, 0))
{
caps.maxMultitextureUnits = 2;
caps.maxLights = 8;
caps.maxClipPlanes = 1;
caps.maxModelviewMatrixStackDepth = 16;
caps.maxProjectionMatrixStackDepth = 2;
caps.maxTextureMatrixStackDepth = 2;
caps.minSmoothPointSize = 1.0f;
caps.maxSmoothPointSize = 1.0f;
}
if (clientVersion >= Version(2, 0))
{
// Table 6.18
caps.max2DTextureSize = 64;
caps.maxCubeMapTextureSize = 16;
caps.maxViewportWidth = caps.max2DTextureSize;
caps.maxViewportHeight = caps.max2DTextureSize;
caps.minAliasedPointSize = 1;
caps.maxAliasedPointSize = 1;
caps.minAliasedLineWidth = 1;
caps.maxAliasedLineWidth = 1;
// Table 6.19
caps.vertexHighpFloat.setSimulatedFloat(62, 16);
caps.vertexMediumpFloat.setSimulatedFloat(14, 10);
caps.vertexLowpFloat.setSimulatedFloat(1, 8);
caps.vertexHighpInt.setSimulatedInt(16);
caps.vertexMediumpInt.setSimulatedInt(10);
caps.vertexLowpInt.setSimulatedInt(8);
caps.fragmentHighpFloat.setSimulatedFloat(62, 16);
caps.fragmentMediumpFloat.setSimulatedFloat(14, 10);
caps.fragmentLowpFloat.setSimulatedFloat(1, 8);
caps.fragmentHighpInt.setSimulatedInt(16);
caps.fragmentMediumpInt.setSimulatedInt(10);
caps.fragmentLowpInt.setSimulatedInt(8);
// Table 6.20
caps.maxVertexAttributes = 8;
caps.maxVertexUniformVectors = 128;
caps.maxVaryingVectors = 8;
caps.maxCombinedTextureImageUnits = 8;
caps.maxShaderTextureImageUnits[ShaderType::Fragment] = 8;
caps.maxFragmentUniformVectors = 16;
caps.maxRenderbufferSize = 1;
// Table 3.35
caps.maxSamples = 4;
}
if (clientVersion >= Version(3, 0))
{
// Table 6.28
caps.maxElementIndex = (1 << 24) - 1;
caps.max3DTextureSize = 256;
caps.max2DTextureSize = 2048;
caps.maxArrayTextureLayers = 256;
caps.maxLODBias = 2.0f;
caps.maxCubeMapTextureSize = 2048;
caps.maxRenderbufferSize = 2048;
caps.maxDrawBuffers = 4;
caps.maxColorAttachments = 4;
caps.maxViewportWidth = caps.max2DTextureSize;
caps.maxViewportHeight = caps.max2DTextureSize;
// Table 6.29
caps.compressedTextureFormats.push_back(GL_COMPRESSED_R11_EAC);
caps.compressedTextureFormats.push_back(GL_COMPRESSED_SIGNED_R11_EAC);
caps.compressedTextureFormats.push_back(GL_COMPRESSED_RG11_EAC);
caps.compressedTextureFormats.push_back(GL_COMPRESSED_SIGNED_RG11_EAC);
caps.compressedTextureFormats.push_back(GL_COMPRESSED_RGB8_ETC2);
caps.compressedTextureFormats.push_back(GL_COMPRESSED_SRGB8_ETC2);
caps.compressedTextureFormats.push_back(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2);
caps.compressedTextureFormats.push_back(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2);
caps.compressedTextureFormats.push_back(GL_COMPRESSED_RGBA8_ETC2_EAC);
caps.compressedTextureFormats.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC);
caps.vertexHighpFloat.setIEEEFloat();
caps.vertexHighpInt.setTwosComplementInt(32);
caps.vertexMediumpInt.setTwosComplementInt(16);
caps.vertexLowpInt.setTwosComplementInt(8);
caps.fragmentHighpFloat.setIEEEFloat();
caps.fragmentHighpInt.setSimulatedInt(32);
caps.fragmentMediumpInt.setTwosComplementInt(16);
caps.fragmentLowpInt.setTwosComplementInt(8);
caps.maxServerWaitTimeout = 0;
// Table 6.31
caps.maxVertexAttributes = 16;
caps.maxShaderUniformComponents[ShaderType::Vertex] = 1024;
caps.maxVertexUniformVectors = 256;
caps.maxShaderUniformBlocks[ShaderType::Vertex] = 12;
caps.maxVertexOutputComponents = 64;
caps.maxShaderTextureImageUnits[ShaderType::Vertex] = 16;
// Table 6.32
caps.maxShaderUniformComponents[ShaderType::Fragment] = 896;
caps.maxFragmentUniformVectors = 224;
caps.maxShaderUniformBlocks[ShaderType::Fragment] = 12;
caps.maxFragmentInputComponents = 60;
caps.maxShaderTextureImageUnits[ShaderType::Fragment] = 16;
caps.minProgramTexelOffset = -8;
caps.maxProgramTexelOffset = 7;
// Table 6.33
caps.maxUniformBufferBindings = 24;
caps.maxUniformBlockSize = 16384;
caps.uniformBufferOffsetAlignment = 256;
caps.maxCombinedUniformBlocks = 24;
caps.maxVaryingComponents = 60;
caps.maxVaryingVectors = 15;
caps.maxCombinedTextureImageUnits = 32;
// Table 6.34
caps.maxTransformFeedbackInterleavedComponents = 64;
caps.maxTransformFeedbackSeparateAttributes = 4;
caps.maxTransformFeedbackSeparateComponents = 4;
}
if (clientVersion >= Version(3, 1))
{
// Table 20.40
caps.maxFramebufferWidth = 2048;
caps.maxFramebufferHeight = 2048;
caps.maxFramebufferSamples = 4;
caps.maxSampleMaskWords = 1;
caps.maxColorTextureSamples = 1;
caps.maxDepthTextureSamples = 1;
caps.maxIntegerSamples = 1;
// Table 20.41
caps.maxVertexAttribRelativeOffset = 2047;
caps.maxVertexAttribBindings = 16;
caps.maxVertexAttribStride = 2048;
// Table 20.43
caps.maxShaderAtomicCounterBuffers[ShaderType::Vertex] = 0;
caps.maxShaderAtomicCounters[ShaderType::Vertex] = 0;
caps.maxShaderImageUniforms[ShaderType::Vertex] = 0;
caps.maxShaderStorageBlocks[ShaderType::Vertex] = 0;
// Table 20.44
caps.maxShaderUniformComponents[ShaderType::Fragment] = 1024;
caps.maxFragmentUniformVectors = 256;
caps.maxShaderAtomicCounterBuffers[ShaderType::Fragment] = 0;
caps.maxShaderAtomicCounters[ShaderType::Fragment] = 0;
caps.maxShaderImageUniforms[ShaderType::Fragment] = 0;
caps.maxShaderStorageBlocks[ShaderType::Fragment] = 0;
caps.minProgramTextureGatherOffset = 0;
caps.maxProgramTextureGatherOffset = 0;
// Table 20.45
caps.maxComputeWorkGroupCount = {{65535, 65535, 65535}};
caps.maxComputeWorkGroupSize = {{128, 128, 64}};
caps.maxComputeWorkGroupInvocations = 12;
caps.maxShaderUniformBlocks[ShaderType::Compute] = 12;
caps.maxShaderTextureImageUnits[ShaderType::Compute] = 16;
caps.maxComputeSharedMemorySize = 16384;
caps.maxShaderUniformComponents[ShaderType::Compute] = 1024;
caps.maxShaderAtomicCounterBuffers[ShaderType::Compute] = 1;
caps.maxShaderAtomicCounters[ShaderType::Compute] = 8;
caps.maxShaderImageUniforms[ShaderType::Compute] = 4;
caps.maxShaderStorageBlocks[ShaderType::Compute] = 4;
// Table 20.46
caps.maxUniformBufferBindings = 36;
caps.maxCombinedTextureImageUnits = 48;
caps.maxCombinedShaderOutputResources = 4;
// Table 20.47
caps.maxUniformLocations = 1024;
caps.maxAtomicCounterBufferBindings = 1;
caps.maxAtomicCounterBufferSize = 32;
caps.maxCombinedAtomicCounterBuffers = 1;
caps.maxCombinedAtomicCounters = 8;
caps.maxImageUnits = 4;
caps.maxCombinedImageUniforms = 4;
caps.maxShaderStorageBufferBindings = 4;
caps.maxShaderStorageBlockSize = 1 << 27;
caps.maxCombinedShaderStorageBlocks = 4;
caps.shaderStorageBufferOffsetAlignment = 256;
}
if (extensions.textureRectangle)
{
caps.maxRectangleTextureSize = 64;
}
if (extensions.geometryShader)
{
// Table 20.40 (GL_EXT_geometry_shader)
caps.maxFramebufferLayers = 256;
caps.layerProvokingVertex = GL_LAST_VERTEX_CONVENTION_EXT;
// Table 20.43gs (GL_EXT_geometry_shader)
caps.maxShaderUniformComponents[ShaderType::Geometry] = 1024;
caps.maxShaderUniformBlocks[ShaderType::Geometry] = 12;
caps.maxGeometryInputComponents = 64;
caps.maxGeometryOutputComponents = 64;
caps.maxGeometryOutputVertices = 256;
caps.maxGeometryTotalOutputComponents = 1024;
caps.maxShaderTextureImageUnits[ShaderType::Geometry] = 16;
caps.maxShaderAtomicCounterBuffers[ShaderType::Geometry] = 0;
caps.maxShaderAtomicCounters[ShaderType::Geometry] = 0;
caps.maxShaderStorageBlocks[ShaderType::Geometry] = 0;
caps.maxGeometryShaderInvocations = 32;
// Table 20.46 (GL_EXT_geometry_shader)
caps.maxShaderImageUniforms[ShaderType::Geometry] = 0;
// Table 20.46 (GL_EXT_geometry_shader)
caps.maxUniformBufferBindings = 48;
caps.maxCombinedUniformBlocks = 36;
caps.maxCombinedTextureImageUnits = 64;
}
for (ShaderType shaderType : AllShaderTypes())
{
caps.maxCombinedShaderUniformComponents[shaderType] =
caps.maxShaderUniformBlocks[shaderType] *
static_cast<GLuint>(caps.maxUniformBlockSize / 4) +
caps.maxShaderUniformComponents[shaderType];
}
return caps;
}
} // namespace gl
namespace egl
{
Caps::Caps() = default;
DisplayExtensions::DisplayExtensions() = default;
std::vector<std::string> DisplayExtensions::getStrings() const
{
std::vector<std::string> extensionStrings;
// clang-format off
// | Extension name | Supported flag | Output vector |
InsertExtensionString("EGL_EXT_create_context_robustness", createContextRobustness, &extensionStrings);
InsertExtensionString("EGL_ANGLE_d3d_share_handle_client_buffer", d3dShareHandleClientBuffer, &extensionStrings);
InsertExtensionString("EGL_ANGLE_d3d_texture_client_buffer", d3dTextureClientBuffer, &extensionStrings);
InsertExtensionString("EGL_ANGLE_surface_d3d_texture_2d_share_handle", surfaceD3DTexture2DShareHandle, &extensionStrings);
InsertExtensionString("EGL_ANGLE_query_surface_pointer", querySurfacePointer, &extensionStrings);
InsertExtensionString("EGL_ANGLE_window_fixed_size", windowFixedSize, &extensionStrings);
InsertExtensionString("EGL_ANGLE_keyed_mutex", keyedMutex, &extensionStrings);
InsertExtensionString("EGL_ANGLE_surface_orientation", surfaceOrientation, &extensionStrings);
InsertExtensionString("EGL_ANGLE_direct_composition", directComposition, &extensionStrings);
InsertExtensionString("EGL_ANGLE_windows_ui_composition", windowsUIComposition, &extensionStrings);
InsertExtensionString("EGL_NV_post_sub_buffer", postSubBuffer, &extensionStrings);
InsertExtensionString("EGL_KHR_create_context", createContext, &extensionStrings);
InsertExtensionString("EGL_EXT_device_query", deviceQuery, &extensionStrings);
InsertExtensionString("EGL_KHR_image", image, &extensionStrings);
InsertExtensionString("EGL_KHR_image_base", imageBase, &extensionStrings);
InsertExtensionString("EGL_KHR_image_pixmap", imagePixmap, &extensionStrings);
InsertExtensionString("EGL_KHR_gl_texture_2D_image", glTexture2DImage, &extensionStrings);
InsertExtensionString("EGL_KHR_gl_texture_cubemap_image", glTextureCubemapImage, &extensionStrings);
InsertExtensionString("EGL_KHR_gl_texture_3D_image", glTexture3DImage, &extensionStrings);
InsertExtensionString("EGL_KHR_gl_renderbuffer_image", glRenderbufferImage, &extensionStrings);
InsertExtensionString("EGL_KHR_get_all_proc_addresses", getAllProcAddresses, &extensionStrings);
InsertExtensionString("EGL_KHR_stream", stream, &extensionStrings);
InsertExtensionString("EGL_KHR_stream_consumer_gltexture", streamConsumerGLTexture, &extensionStrings);
InsertExtensionString("EGL_NV_stream_consumer_gltexture_yuv", streamConsumerGLTextureYUV, &extensionStrings);
InsertExtensionString("EGL_KHR_fence_sync", fenceSync, &extensionStrings);
InsertExtensionString("EGL_KHR_wait_sync", waitSync, &extensionStrings);
InsertExtensionString("EGL_ANGLE_flexible_surface_compatibility", flexibleSurfaceCompatibility, &extensionStrings);
InsertExtensionString("EGL_ANGLE_stream_producer_d3d_texture", streamProducerD3DTexture, &extensionStrings);
InsertExtensionString("EGL_ANGLE_create_context_webgl_compatibility", createContextWebGLCompatibility, &extensionStrings);
InsertExtensionString("EGL_CHROMIUM_create_context_bind_generates_resource", createContextBindGeneratesResource, &extensionStrings);
InsertExtensionString("EGL_CHROMIUM_sync_control", getSyncValues, &extensionStrings);
InsertExtensionString("EGL_KHR_swap_buffers_with_damage", swapBuffersWithDamage, &extensionStrings);
InsertExtensionString("EGL_EXT_pixel_format_float", pixelFormatFloat, &extensionStrings);
InsertExtensionString("EGL_KHR_surfaceless_context", surfacelessContext, &extensionStrings);
InsertExtensionString("EGL_ANGLE_display_texture_share_group", displayTextureShareGroup, &extensionStrings);
InsertExtensionString("EGL_ANGLE_create_context_client_arrays", createContextClientArrays, &extensionStrings);
InsertExtensionString("EGL_ANGLE_program_cache_control", programCacheControl, &extensionStrings);
InsertExtensionString("EGL_ANGLE_robust_resource_initialization", robustResourceInitialization, &extensionStrings);
InsertExtensionString("EGL_ANGLE_iosurface_client_buffer", iosurfaceClientBuffer, &extensionStrings);
InsertExtensionString("EGL_ANGLE_create_context_extensions_enabled", createContextExtensionsEnabled, &extensionStrings);
InsertExtensionString("EGL_ANDROID_presentation_time", presentationTime, &extensionStrings);
InsertExtensionString("EGL_ANDROID_blob_cache", blobCache, &extensionStrings);
InsertExtensionString("EGL_ANDROID_image_native_buffer", imageNativeBuffer, &extensionStrings);
InsertExtensionString("EGL_ANDROID_get_frame_timestamps", getFrameTimestamps, &extensionStrings);
InsertExtensionString("EGL_ANDROID_recordable", recordable, &extensionStrings);
InsertExtensionString("EGL_ANGLE_power_preference", powerPreference, &extensionStrings);
InsertExtensionString("EGL_ANGLE_image_d3d11_texture", imageD3D11Texture, &extensionStrings);
InsertExtensionString("EGL_ANDROID_get_native_client_buffer", getNativeClientBufferANDROID, &extensionStrings);
InsertExtensionString("EGL_ANDROID_native_fence_sync", nativeFenceSyncANDROID, &extensionStrings);
InsertExtensionString("EGL_ANGLE_create_context_backwards_compatible", createContextBackwardsCompatible, &extensionStrings);
InsertExtensionString("EGL_KHR_no_config_context", noConfigContext, &extensionStrings);
// TODO(jmadill): Enable this when complete.
//InsertExtensionString("KHR_create_context_no_error", createContextNoError, &extensionStrings);
// clang-format on
return extensionStrings;
}
DeviceExtensions::DeviceExtensions() = default;
std::vector<std::string> DeviceExtensions::getStrings() const
{
std::vector<std::string> extensionStrings;
// clang-format off
// | Extension name | Supported flag | Output vector |
InsertExtensionString("EGL_ANGLE_device_d3d", deviceD3D, &extensionStrings);
// clang-format on
return extensionStrings;
}
ClientExtensions::ClientExtensions() = default;
ClientExtensions::ClientExtensions(const ClientExtensions &other) = default;
std::vector<std::string> ClientExtensions::getStrings() const
{
std::vector<std::string> extensionStrings;
// clang-format off
// | Extension name | Supported flag | Output vector |
InsertExtensionString("EGL_EXT_client_extensions", clientExtensions, &extensionStrings);
InsertExtensionString("EGL_EXT_platform_base", platformBase, &extensionStrings);
InsertExtensionString("EGL_EXT_platform_device", platformDevice, &extensionStrings);
InsertExtensionString("EGL_ANGLE_platform_angle", platformANGLE, &extensionStrings);
InsertExtensionString("EGL_ANGLE_platform_angle_d3d", platformANGLED3D, &extensionStrings);
InsertExtensionString("EGL_ANGLE_platform_angle_device_type_swiftshader", platformANGLEDeviceTypeSwiftShader, &extensionStrings);
InsertExtensionString("EGL_ANGLE_platform_angle_opengl", platformANGLEOpenGL, &extensionStrings);
InsertExtensionString("EGL_ANGLE_platform_angle_null", platformANGLENULL, &extensionStrings);
InsertExtensionString("EGL_ANGLE_platform_angle_vulkan", platformANGLEVulkan, &extensionStrings);
InsertExtensionString("EGL_ANGLE_platform_angle_context_virtualization", platformANGLEContextVirtualization, &extensionStrings);
InsertExtensionString("EGL_ANGLE_device_creation", deviceCreation, &extensionStrings);
InsertExtensionString("EGL_ANGLE_device_creation_d3d11", deviceCreationD3D11, &extensionStrings);
InsertExtensionString("EGL_ANGLE_x11_visual", x11Visual, &extensionStrings);
InsertExtensionString("EGL_ANGLE_experimental_present_path", experimentalPresentPath, &extensionStrings);
InsertExtensionString("EGL_KHR_client_get_all_proc_addresses", clientGetAllProcAddresses, &extensionStrings);
InsertExtensionString("EGL_KHR_debug", debug, &extensionStrings);
InsertExtensionString("EGL_ANGLE_explicit_context", explicitContext, &extensionStrings);
InsertExtensionString("EGL_ANGLE_feature_control", featureControlANGLE, &extensionStrings);
// clang-format on
return extensionStrings;
}
} // namespace egl