| // |
| // Copyright 2015 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. |
| // |
| |
| // formatutilsgl.cpp: Queries for GL image formats and their translations to native |
| // GL formats. |
| |
| #include "libANGLE/renderer/gl/formatutilsgl.h" |
| |
| #include <limits> |
| |
| #include "anglebase/no_destructor.h" |
| #include "common/string_utils.h" |
| #include "libANGLE/formatutils.h" |
| #include "platform/FeaturesGL.h" |
| |
| namespace rx |
| { |
| |
| namespace nativegl |
| { |
| |
| SupportRequirement::SupportRequirement() |
| : version(std::numeric_limits<GLuint>::max(), std::numeric_limits<GLuint>::max()), |
| versionExtensions(), |
| requiredExtensions() |
| {} |
| |
| SupportRequirement::SupportRequirement(const SupportRequirement &other) = default; |
| |
| SupportRequirement::~SupportRequirement() {} |
| |
| InternalFormat::InternalFormat() : texture(), filter(), textureAttachment(), renderbuffer() {} |
| |
| InternalFormat::InternalFormat(const InternalFormat &other) = default; |
| |
| InternalFormat::~InternalFormat() {} |
| |
| // supported = version || vertexExt |
| static inline SupportRequirement VersionOrExts(GLuint major, |
| GLuint minor, |
| const std::string &versionExt) |
| { |
| SupportRequirement requirement; |
| requirement.version.major = major; |
| requirement.version.minor = minor; |
| angle::SplitStringAlongWhitespace(versionExt, &requirement.versionExtensions); |
| return requirement; |
| } |
| |
| // supported = version |
| static inline SupportRequirement VersionOnly(GLuint major, GLuint minor) |
| { |
| SupportRequirement requirement; |
| requirement.version.major = major; |
| requirement.version.minor = minor; |
| return requirement; |
| } |
| |
| // supported = any one of sets in exts |
| static inline SupportRequirement ExtsOnly(const std::vector<std::string> &exts) |
| { |
| SupportRequirement requirement; |
| requirement.version.major = 0; |
| requirement.version.minor = 0; |
| requirement.requiredExtensions.resize(exts.size()); |
| for (size_t i = 0; i < exts.size(); i++) |
| { |
| angle::SplitStringAlongWhitespace(exts[i], &requirement.requiredExtensions[i]); |
| } |
| return requirement; |
| } |
| |
| // supported = ext |
| static inline SupportRequirement ExtsOnly(const std::string &ext) |
| { |
| return ExtsOnly(std::vector<std::string>({ext})); |
| } |
| |
| // supported = ext1 || ext2 |
| static inline SupportRequirement ExtsOnly(const std::string &ext1, const std::string &ext2) |
| { |
| return ExtsOnly(std::vector<std::string>({ext1, ext2})); |
| } |
| |
| // supported = true |
| static inline SupportRequirement AlwaysSupported() |
| { |
| SupportRequirement requirement; |
| requirement.version.major = 0; |
| requirement.version.minor = 0; |
| return requirement; |
| } |
| |
| // supported = false |
| static inline SupportRequirement NeverSupported() |
| { |
| SupportRequirement requirement; |
| requirement.version.major = std::numeric_limits<GLuint>::max(); |
| requirement.version.minor = std::numeric_limits<GLuint>::max(); |
| return requirement; |
| } |
| |
| struct InternalFormatInfo |
| { |
| InternalFormat glesInfo; |
| InternalFormat glInfo; |
| }; |
| |
| typedef std::pair<GLenum, InternalFormatInfo> InternalFormatInfoPair; |
| typedef std::map<GLenum, InternalFormatInfo> InternalFormatInfoMap; |
| |
| // A helper function to insert data into the format map with fewer characters. |
| static inline void InsertFormatMapping(InternalFormatInfoMap *map, |
| GLenum internalFormat, |
| const SupportRequirement &desktopTexture, |
| const SupportRequirement &desktopFilter, |
| const SupportRequirement &desktopRender, |
| const SupportRequirement &esTexture, |
| const SupportRequirement &esFilter, |
| const SupportRequirement &esTextureAttachment, |
| const SupportRequirement &esRenderbufferAttachment) |
| { |
| InternalFormatInfo formatInfo; |
| formatInfo.glInfo.texture = desktopTexture; |
| formatInfo.glInfo.filter = desktopFilter; |
| // No difference spotted yet in Desktop GL texture attachment and renderbuffer capabilities |
| formatInfo.glInfo.textureAttachment = desktopRender; |
| formatInfo.glInfo.renderbuffer = desktopRender; |
| formatInfo.glesInfo.texture = esTexture; |
| formatInfo.glesInfo.filter = esFilter; |
| formatInfo.glesInfo.textureAttachment = esTextureAttachment; |
| formatInfo.glesInfo.renderbuffer = esRenderbufferAttachment; |
| map->insert(std::make_pair(internalFormat, formatInfo)); |
| } |
| |
| // Note 1: This map is used to determine extensions support, which is based on checking support for |
| // sized formats (this is ANGLE implementation limitation - D3D backend supports only sized formats) |
| // In order to determine support for extensions which introduce unsized formats, this map would say |
| // that a corresponding sized format is supported, instead. Thus, if this map says that a sized |
| // format is supported, this means that either the actual sized format or a corresponding unsized |
| // format is supported by the native driver. |
| // For example, GL_EXT_texture_rg provides support for RED_EXT format with UNSIGNED_BYTE type. |
| // Therefore, DetermineRGTextureSupport checks for GL_R8 support. Therefore this map says that |
| // GL_R8 (and not RED_EXT) is supported if GL_EXT_texture_rg is available. GL_R8 itself |
| // is supported in ES3, thus the combined condition is VersionOrExts(3, 0, "GL_EXT_texture_rg"). |
| // |
| // Note 2: Texture Attachment support is checked also by SupportsNativeRendering(). |
| // Unsized formats appear in this map for this reason. The assumption is |
| // that SupportsNativeRendering() will not check sized formats in the ES2 frontend |
| // and the information in unsized formats is correct, and not merged like for sized formats. |
| // In the ES3 frontend, it could happen that SupportsNativeRendering() would be wrong, |
| // but this will be mitigated by fall back to CPU-readback in TextureGL::copySubTextureHelper(). |
| // |
| // Note 3: Because creating renderbuffers with unsized formats is impossible, |
| // the value of renderbuffer support is actually correct for the sized formats. |
| // |
| // Note 4: To determine whether a format is filterable, one must check both "Filter" and "Texture" |
| // support, like it is done in GenerateTextureFormatCaps(). |
| // On the other hand, "Texture Attachment" support formula is self-contained. |
| // |
| // TODO(ynovikov): http://anglebug.com/2846 Verify support fields of BGRA, depth, stencil and |
| // compressed formats, and all formats for Desktop GL. |
| static InternalFormatInfoMap BuildInternalFormatInfoMap() |
| { |
| InternalFormatInfoMap map; |
| |
| // clang-format off |
| // | Format | OpenGL texture support | Filter | OpenGL render support | OpenGL ES texture support | Filter | OpenGL ES texture attachment support | OpenGL ES renderbuffer support | |
| InsertFormatMapping(&map, GL_R8, VersionOrExts(3, 0, "GL_ARB_texture_rg"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOrExts(3, 0, "GL_EXT_texture_rg"), AlwaysSupported(), VersionOrExts(3, 0, "GL_EXT_texture_rg"), VersionOrExts(3, 0, "GL_EXT_texture_rg") ); |
| InsertFormatMapping(&map, GL_R8_SNORM, VersionOnly(3, 1), AlwaysSupported(), NeverSupported(), VersionOnly(3, 0), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RG8, VersionOrExts(3, 0, "GL_ARB_texture_rg"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOrExts(3, 0, "GL_EXT_texture_rg"), AlwaysSupported(), VersionOrExts(3, 0, "GL_EXT_texture_rg"), VersionOrExts(3, 0, "GL_EXT_texture_rg") ); |
| InsertFormatMapping(&map, GL_RG8_SNORM, VersionOnly(3, 1), AlwaysSupported(), NeverSupported(), VersionOnly(3, 0), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGB8, AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), VersionOnly(2, 0), VersionOrExts(3, 0, "GL_OES_rgb8_rgba8") ); |
| InsertFormatMapping(&map, GL_RGB8_SNORM, VersionOnly(3, 1), AlwaysSupported(), NeverSupported(), VersionOnly(3, 0), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGB565, AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported() ); |
| InsertFormatMapping(&map, GL_RGBA4, AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported() ); |
| InsertFormatMapping(&map, GL_RGB5_A1, AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported() ); |
| InsertFormatMapping(&map, GL_RGBA8, AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), VersionOnly(2, 0), VersionOrExts(3, 0, "GL_OES_rgb8_rgba8") ); |
| InsertFormatMapping(&map, GL_RGBA8_SNORM, VersionOnly(3, 1), AlwaysSupported(), NeverSupported(), VersionOnly(3, 0), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGB10_A2, AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), VersionOnly(3, 0), AlwaysSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RGB10_A2UI, VersionOrExts(3, 3, "GL_ARB_texture_rgb10_a2ui"), NeverSupported(), AlwaysSupported(), VersionOnly(3, 0), NeverSupported(), AlwaysSupported(), AlwaysSupported() ); |
| InsertFormatMapping(&map, GL_SRGB8, VersionOrExts(2, 1, "GL_EXT_texture_sRGB"), AlwaysSupported(), VersionOrExts(2, 1, "GL_EXT_texture_sRGB"), VersionOrExts(3, 0, "GL_EXT_sRGB"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_SRGB8_ALPHA8, VersionOrExts(2, 1, "GL_EXT_texture_sRGB"), AlwaysSupported(), VersionOrExts(2, 1, "GL_EXT_texture_sRGB"), VersionOrExts(3, 0, "GL_EXT_sRGB"), AlwaysSupported(), VersionOrExts(3, 0, "GL_EXT_sRGB"), VersionOrExts(3, 0, "GL_EXT_sRGB") ); |
| InsertFormatMapping(&map, GL_R8I, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_R8UI, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_R16I, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_R16UI, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_R32I, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_R32UI, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RG8I, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RG8UI, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RG16I, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RG16UI, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RG32I, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RG32UI, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RGB8I, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), NeverSupported(), VersionOnly(3, 0), NeverSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGB8UI, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), NeverSupported(), VersionOnly(3, 0), NeverSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGB16I, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), NeverSupported(), VersionOnly(3, 0), NeverSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGB16UI, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), NeverSupported(), VersionOnly(3, 0), NeverSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGB32I, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), NeverSupported(), VersionOnly(3, 0), NeverSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGB32UI, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), NeverSupported(), VersionOnly(3, 0), NeverSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGBA8I, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), VersionOrExts(3, 0, "GL_EXT_texture_integer"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RGBA8UI, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), VersionOrExts(3, 0, "GL_EXT_texture_integer"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RGBA16I, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), VersionOrExts(3, 0, "GL_EXT_texture_integer"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RGBA16UI, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), VersionOrExts(3, 0, "GL_EXT_texture_integer"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RGBA32I, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), VersionOrExts(3, 0, "GL_EXT_texture_integer"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_RGBA32UI, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), VersionOrExts(3, 0, "GL_EXT_texture_integer"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| |
| InsertFormatMapping(&map, GL_R16, VersionOrExts(3, 0, "GL_ARB_texture_rg"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), ExtsOnly("GL_EXT_texture_norm16"), AlwaysSupported(), ExtsOnly("GL_EXT_texture_norm16"), ExtsOnly("GL_EXT_texture_norm16") ); |
| InsertFormatMapping(&map, GL_RG16, VersionOrExts(3, 0, "GL_ARB_texture_rg"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), ExtsOnly("GL_EXT_texture_norm16"), AlwaysSupported(), ExtsOnly("GL_EXT_texture_norm16"), ExtsOnly("GL_EXT_texture_norm16") ); |
| InsertFormatMapping(&map, GL_RGB16, AlwaysSupported(), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_norm16"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGBA16, AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), ExtsOnly("GL_EXT_texture_norm16"), AlwaysSupported(), ExtsOnly("GL_EXT_texture_norm16"), ExtsOnly("GL_EXT_texture_norm16") ); |
| |
| InsertFormatMapping(&map, GL_R16_SNORM, VersionOnly(3, 1), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_norm16"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RG16_SNORM, VersionOnly(3, 1), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_norm16"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGB16_SNORM, VersionOnly(3, 1), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_norm16"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGBA16_SNORM, VersionOnly(3, 1), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_norm16"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| |
| // Unsized formats |
| InsertFormatMapping(&map, GL_ALPHA, NeverSupported(), NeverSupported(), NeverSupported(), AlwaysSupported(), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_LUMINANCE, NeverSupported(), NeverSupported(), NeverSupported(), AlwaysSupported(), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, NeverSupported(), NeverSupported(), NeverSupported(), AlwaysSupported(), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RED, VersionOrExts(3, 0, "GL_ARB_texture_rg"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), ExtsOnly("GL_EXT_texture_rg"), AlwaysSupported(), ExtsOnly("GL_EXT_texture_rg"), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RG, VersionOrExts(3, 0, "GL_ARB_texture_rg"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), ExtsOnly("GL_EXT_texture_rg"), AlwaysSupported(), ExtsOnly("GL_EXT_texture_rg"), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGB, AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), VersionOnly(2, 0), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGBA, AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), AlwaysSupported(), VersionOnly(2, 0), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RED_INTEGER, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RG_INTEGER, VersionOrExts(3, 0, "GL_ARB_texture_rg"), NeverSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGB_INTEGER, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), NeverSupported(), VersionOnly(3, 0), NeverSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGBA_INTEGER, VersionOrExts(3, 0, "GL_EXT_texture_integer"), NeverSupported(), VersionOrExts(3, 0, "GL_EXT_texture_integer"), VersionOnly(3, 0), NeverSupported(), VersionOnly(3, 0), NeverSupported() ); |
| InsertFormatMapping(&map, GL_SRGB, VersionOrExts(2, 1, "GL_EXT_texture_sRGB"), AlwaysSupported(), VersionOrExts(2, 1, "GL_EXT_texture_sRGB"), ExtsOnly("GL_EXT_sRGB"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_SRGB_ALPHA, VersionOrExts(2, 1, "GL_EXT_texture_sRGB"), AlwaysSupported(), VersionOrExts(2, 1, "GL_EXT_texture_sRGB"), ExtsOnly("GL_EXT_sRGB"), AlwaysSupported(), ExtsOnly("GL_EXT_sRGB"), NeverSupported() ); |
| |
| // From GL_EXT_texture_format_BGRA8888 |
| InsertFormatMapping(&map, GL_BGRA8_EXT, VersionOrExts(1, 2, "GL_EXT_bgra"), AlwaysSupported(), VersionOrExts(1, 2, "GL_EXT_bgra"), ExtsOnly("GL_EXT_texture_format_BGRA8888"), AlwaysSupported(), ExtsOnly("GL_EXT_texture_format_BGRA8888"), ExtsOnly("GL_EXT_texture_format_BGRA8888") ); |
| InsertFormatMapping(&map, GL_BGRA_EXT, VersionOrExts(1, 2, "GL_EXT_bgra"), AlwaysSupported(), VersionOrExts(1, 2, "GL_EXT_bgra"), ExtsOnly("GL_EXT_texture_format_BGRA8888"), AlwaysSupported(), ExtsOnly("GL_EXT_texture_format_BGRA8888"), ExtsOnly("GL_EXT_texture_format_BGRA8888") ); |
| |
| // Floating point formats |
| // Note 1: GL_EXT_texture_shared_exponent and GL_ARB_color_buffer_float suggest that RGB9_E5 |
| // would be renderable, but once support for renderable float textures got rolled into core GL |
| // spec it wasn't intended to be renderable. In practice it's not reliably renderable even |
| // with the extensions, there's a known bug in at least NVIDIA driver version 370. |
| // |
| // Note 2: It's a bit unclear whether texture attachments with GL_RGB16F should be supported |
| // in ES3 with GL_EXT_color_buffer_half_float. Probably not, since in ES3 type is HALF_FLOAT, |
| // but GL_EXT_color_buffer_half_float is applicable only to type HALF_FLOAT_OES. |
| // |
| // Note 3: GL_EXT_color_buffer_float implies that ES3.0 is supported, this simplifies the check. |
| // |
| // | Format | OpenGL texture support | Filter | OpenGL render support | OpenGL ES texture support | Filter | OpenGL ES texture attachment support | OpenGL ES renderbuffer support | |
| InsertFormatMapping(&map, GL_R11F_G11F_B10F, VersionOrExts(3, 0, "GL_EXT_packed_float"), AlwaysSupported(), VersionOrExts(3, 0, "GL_EXT_packed_float GL_ARB_color_buffer_float"), VersionOnly(3, 0), AlwaysSupported(), ExtsOnly("GL_EXT_color_buffer_float"), ExtsOnly("GL_EXT_color_buffer_float") ); |
| InsertFormatMapping(&map, GL_RGB9_E5, VersionOrExts(3, 0, "GL_EXT_texture_shared_exponent"), AlwaysSupported(), NeverSupported(), VersionOnly(3, 0), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_R16F, VersionOrExts(3, 0, "GL_ARB_texture_rg ARB_texture_float"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg GL_ARB_texture_float GL_ARB_color_buffer_float"), VersionOrExts(3, 0, "GL_OES_texture_half_float GL_EXT_texture_rg"), VersionOrExts(3, 0, "GL_OES_texture_half_float_linear"), ExtsOnly("GL_EXT_texture_storage GL_OES_texture_half_float GL_EXT_texture_rg GL_EXT_color_buffer_half_float", "GL_EXT_color_buffer_float"), ExtsOnly("GL_EXT_texture_rg GL_OES_texture_half_float GL_EXT_color_buffer_half_float", "GL_EXT_color_buffer_float")); |
| InsertFormatMapping(&map, GL_RG16F, VersionOrExts(3, 0, "GL_ARB_texture_rg ARB_texture_float"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg GL_ARB_texture_float GL_ARB_color_buffer_float"), VersionOrExts(3, 0, "GL_OES_texture_half_float GL_EXT_texture_rg"), VersionOrExts(3, 0, "GL_OES_texture_half_float_linear"), ExtsOnly("GL_EXT_texture_storage GL_OES_texture_half_float GL_EXT_texture_rg GL_EXT_color_buffer_half_float", "GL_EXT_color_buffer_float"), ExtsOnly("GL_EXT_texture_rg GL_OES_texture_half_float GL_EXT_color_buffer_half_float", "GL_EXT_color_buffer_float")); |
| InsertFormatMapping(&map, GL_RGB16F, VersionOrExts(3, 0, "GL_ARB_texture_float"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_float GL_ARB_color_buffer_float"), VersionOrExts(3, 0, "GL_OES_texture_half_float"), VersionOrExts(3, 0, "GL_OES_texture_half_float_linear"), ExtsOnly("GL_EXT_texture_storage GL_OES_texture_half_float GL_EXT_color_buffer_half_float"), ExtsOnly("GL_OES_texture_half_float GL_EXT_color_buffer_half_float") ); |
| InsertFormatMapping(&map, GL_RGBA16F, VersionOrExts(3, 0, "GL_ARB_texture_float"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_float GL_ARB_color_buffer_float"), VersionOrExts(3, 0, "GL_OES_texture_half_float"), VersionOrExts(3, 0, "GL_OES_texture_half_float_linear"), ExtsOnly("GL_EXT_color_buffer_half_float", "GL_EXT_color_buffer_float"), ExtsOnly("GL_EXT_color_buffer_half_float", "GL_EXT_color_buffer_float") ); |
| InsertFormatMapping(&map, GL_R32F, VersionOrExts(3, 0, "GL_ARB_texture_rg GL_ARB_texture_float"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg GL_ARB_texture_float GL_ARB_color_buffer_float"), VersionOrExts(3, 0, "GL_OES_texture_float GL_EXT_texture_rg"), ExtsOnly("GL_OES_texture_float_linear"), ExtsOnly("GL_EXT_color_buffer_float"), ExtsOnly("GL_EXT_color_buffer_float") ); |
| InsertFormatMapping(&map, GL_RG32F, VersionOrExts(3, 0, "GL_ARB_texture_rg GL_ARB_texture_float"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_rg GL_ARB_texture_float GL_ARB_color_buffer_float"), VersionOrExts(3, 0, "GL_OES_texture_float GL_EXT_texture_rg"), ExtsOnly("GL_OES_texture_float_linear"), ExtsOnly("GL_EXT_color_buffer_float"), ExtsOnly("GL_EXT_color_buffer_float") ); |
| InsertFormatMapping(&map, GL_RGB32F, VersionOrExts(3, 0, "GL_ARB_texture_float"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_float GL_ARB_color_buffer_float"), VersionOrExts(3, 0, "GL_OES_texture_float"), ExtsOnly("GL_OES_texture_float_linear"), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_RGBA32F, VersionOrExts(3, 0, "GL_ARB_texture_float"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_texture_float GL_ARB_color_buffer_float"), VersionOrExts(3, 0, "GL_OES_texture_float"), ExtsOnly("GL_OES_texture_float_linear"), ExtsOnly("GL_EXT_color_buffer_float"), ExtsOnly("GL_EXT_color_buffer_float") ); |
| |
| // Depth stencil formats |
| // | Format | OpenGL texture support | Filter | OpenGL render support | OpenGL ES texture support | Filter | OpenGL ES texture attachment support | OpenGL ES renderbuffer support | |
| InsertFormatMapping(&map, GL_DEPTH_COMPONENT16, VersionOnly(1, 5), VersionOrExts(1, 5, "GL_ARB_depth_texture"), VersionOnly(1, 5), VersionOnly(2, 0), VersionOrExts(3, 0, "GL_OES_depth_texture"), VersionOnly(2, 0), VersionOnly(2, 0) ); |
| InsertFormatMapping(&map, GL_DEPTH_COMPONENT24, VersionOnly(1, 5), VersionOrExts(1, 5, "GL_ARB_depth_texture"), VersionOnly(1, 5), VersionOnly(2, 0), VersionOrExts(3, 0, "GL_OES_depth_texture"), VersionOnly(2, 0), VersionOnly(2, 0) ); |
| InsertFormatMapping(&map, GL_DEPTH_COMPONENT32_OES, VersionOnly(1, 5), VersionOrExts(1, 5, "GL_ARB_depth_texture"), VersionOnly(1, 5), ExtsOnly("GL_OES_depth_texture"), AlwaysSupported(), ExtsOnly("GL_OES_depth_texture"), ExtsOnly("GL_OES_depth32") ); |
| InsertFormatMapping(&map, GL_DEPTH_COMPONENT32F, VersionOrExts(3, 0, "GL_ARB_depth_buffer_float"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_depth_buffer_float"), VersionOnly(3, 0), VersionOrExts(3, 0, "GL_OES_depth_texture"), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_STENCIL_INDEX8, VersionOrExts(3, 0, "GL_EXT_packed_depth_stencil"), NeverSupported(), VersionOrExts(3, 0, "GL_EXT_packed_depth_stencil"), VersionOnly(2, 0), NeverSupported(), VersionOnly(2, 0), VersionOnly(2, 0) ); |
| InsertFormatMapping(&map, GL_DEPTH24_STENCIL8, VersionOrExts(3, 0, "GL_ARB_framebuffer_object"), VersionOrExts(3, 0, "GL_ARB_depth_texture"), VersionOrExts(3, 0, "GL_ARB_framebuffer_object"), VersionOrExts(3, 0, "GL_OES_depth_texture"), AlwaysSupported(), VersionOrExts(3, 0, "GL_OES_depth_texture GL_OES_packed_depth_stencil"), VersionOrExts(3, 0, "GL_OES_depth_texture GL_OES_packed_depth_stencil")); |
| InsertFormatMapping(&map, GL_DEPTH32F_STENCIL8, VersionOrExts(3, 0, "GL_ARB_depth_buffer_float"), AlwaysSupported(), VersionOrExts(3, 0, "GL_ARB_depth_buffer_float"), VersionOnly(3, 0), AlwaysSupported(), VersionOnly(3, 0), VersionOnly(3, 0) ); |
| InsertFormatMapping(&map, GL_DEPTH_COMPONENT, VersionOnly(1, 5), VersionOrExts(1, 5, "GL_ARB_depth_texture"), VersionOnly(1, 5), VersionOnly(2, 0), VersionOrExts(3, 0, "GL_OES_depth_texture"), VersionOnly(2, 0), VersionOnly(2, 0) ); |
| InsertFormatMapping(&map, GL_DEPTH_STENCIL, VersionOnly(1, 5), VersionOrExts(1, 5, "GL_ARB_depth_texture"), VersionOnly(1, 5), VersionOnly(2, 0), VersionOrExts(3, 0, "GL_OES_depth_texture"), VersionOnly(2, 0), VersionOnly(2, 0) ); |
| |
| // Luminance alpha formats |
| // | Format | OpenGL texture support | Filter | Render | OpenGL ES texture support | Filter | OpenGL ES texture attachment support | OpenGL ES renderbuffer support | |
| InsertFormatMapping(&map, GL_ALPHA8_EXT, AlwaysSupported(), AlwaysSupported(), NeverSupported(), AlwaysSupported(), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_LUMINANCE8_EXT, AlwaysSupported(), AlwaysSupported(), NeverSupported(), AlwaysSupported(), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_LUMINANCE8_ALPHA8_EXT, AlwaysSupported(), AlwaysSupported(), NeverSupported(), AlwaysSupported(), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_ALPHA16F_EXT, VersionOrExts(3, 0, "GL_ARB_texture_float"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "GL_OES_texture_half_float"), VersionOrExts(3, 0, "GL_OES_texture_half_float_linear"), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_LUMINANCE16F_EXT, VersionOrExts(3, 0, "GL_ARB_texture_float"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "GL_OES_texture_half_float"), VersionOrExts(3, 0, "GL_OES_texture_half_float_linear"), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_LUMINANCE_ALPHA16F_EXT, VersionOrExts(3, 0, "GL_ARB_texture_float"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "GL_OES_texture_half_float"), VersionOrExts(3, 0, "GL_OES_texture_half_float_linear"), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_ALPHA32F_EXT, VersionOrExts(3, 0, "GL_ARB_texture_float"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "GL_OES_texture_float"), ExtsOnly("GL_OES_texture_float_linear"), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_LUMINANCE32F_EXT, VersionOrExts(3, 0, "GL_ARB_texture_float"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "GL_OES_texture_float"), ExtsOnly("GL_OES_texture_float_linear"), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_LUMINANCE_ALPHA32F_EXT, VersionOrExts(3, 0, "GL_ARB_texture_float"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "GL_OES_texture_float"), ExtsOnly("GL_OES_texture_float_linear"), NeverSupported(), NeverSupported() ); |
| |
| // EXT_texture_compression_rgtc formats |
| // | Format | OpenGL texture support | Filter | Render | OpenGL ES texture support | Filter | OpenGL ES texture attachment support | OpenGL ES renderbuffer support | |
| InsertFormatMapping(&map, GL_COMPRESSED_RED_RGTC1_EXT, VersionOrExts(3, 0, "GL_ARB_texture_compression_rgtc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_rgtc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SIGNED_RED_RGTC1_EXT, VersionOrExts(3, 0, "GL_ARB_texture_compression_rgtc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_rgtc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_RED_GREEN_RGTC2_EXT, VersionOrExts(3, 0, "GL_ARB_texture_compression_rgtc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_rgtc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT, VersionOrExts(3, 0, "GL_ARB_texture_compression_rgtc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_rgtc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| |
| // EXT_texture_compression_bptc formats |
| // | Format | OpenGL texture support | Filter | Render | OpenGL ES texture support | Filter | OpenGL ES texture attachment support | OpenGL ES renderbuffer support | |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_BPTC_UNORM_EXT, VersionOrExts(4, 2, "GL_ARB_texture_compression_bptc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_bptc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT, VersionOrExts(4, 2, "GL_ARB_texture_compression_bptc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_bptc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT, VersionOrExts(4, 2, "GL_ARB_texture_compression_bptc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_bptc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT, VersionOrExts(4, 2, "GL_ARB_texture_compression_bptc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_bptc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| |
| // Compressed formats, From ES 3.0.1 spec, table 3.16 |
| // | Format | OpenGL texture support | Filter | Render | OpenGL ES texture support | Filter | OpenGL ES texture attachment support | OpenGL ES renderbuffer support | |
| InsertFormatMapping(&map, GL_COMPRESSED_R11_EAC, VersionOrExts(4, 3, "GL_ARB_ES3_compatibility"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "OES_compressed_EAC_R11_unsigned_texture"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SIGNED_R11_EAC, VersionOrExts(4, 3, "GL_ARB_ES3_compatibility"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "OES_compressed_EAC_R11_signed_texture"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_RG11_EAC, VersionOrExts(4, 3, "GL_ARB_ES3_compatibility"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "OES_compressed_EAC_RG11_unsigned_texture"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SIGNED_RG11_EAC, VersionOrExts(4, 3, "GL_ARB_ES3_compatibility"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "OES_compressed_EAC_RG11_signed_texture"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGB8_ETC2, VersionOrExts(4, 3, "GL_ARB_ES3_compatibility"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "OES_compressed_ETC2_RGB8_texture"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ETC2, VersionOrExts(4, 3, "GL_ARB_ES3_compatibility"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "OES_compressed_ETC2_sRGB8_texture"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, VersionOrExts(4, 3, "GL_ARB_ES3_compatibility"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "OES_compressed_ETC2_punchthroughA_RGBA8_texture"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, VersionOrExts(4, 3, "GL_ARB_ES3_compatibility"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA8_ETC2_EAC, VersionOrExts(4, 3, "GL_ARB_ES3_compatibility"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "OES_compressed_ETC2_RGBA8_texture"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, VersionOrExts(4, 3, "GL_ARB_ES3_compatibility"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "OES_compressed_ETC2_sRGB8_alpha8_texture"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| |
| // From GL_EXT_texture_compression_dxt1 |
| // | Format | OpenGL texture support | Filter | Render | OpenGL ES texture support | Filter | OpenGL ES texture attachment support | OpenGL ES renderbuffer support | |
| InsertFormatMapping(&map, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, ExtsOnly("GL_EXT_texture_compression_s3tc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_dxt1", "GL_EXT_texture_compression_s3tc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, ExtsOnly("GL_EXT_texture_compression_s3tc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_dxt1", "GL_EXT_texture_compression_s3tc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| |
| // From GL_ANGLE_texture_compression_dxt3 |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, ExtsOnly("GL_EXT_texture_compression_s3tc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_ANGLE_texture_compression_dxt3", "GL_EXT_texture_compression_s3tc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| |
| // From GL_ANGLE_texture_compression_dxt5 |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, ExtsOnly("GL_EXT_texture_compression_s3tc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_ANGLE_texture_compression_dxt5", "GL_EXT_texture_compression_s3tc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| |
| // From GL_EXT_texture_compression_s3tc_srgb |
| // | Format | OpenGL texture support | Filter | Render | OpenGL ES texture support | Filter | OpenGL ES texture attachment support | OpenGL ES renderbuffer support | |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, ExtsOnly("GL_EXT_texture_compression_s3tc GL_EXT_texture_sRGB"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_s3tc_srgb", "GL_EXT_texture_compression_s3tc GL_NV_sRGB_formats"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, ExtsOnly("GL_EXT_texture_compression_s3tc GL_EXT_texture_sRGB"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_s3tc_srgb", "GL_EXT_texture_compression_s3tc GL_NV_sRGB_formats"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, ExtsOnly("GL_EXT_texture_compression_s3tc GL_EXT_texture_sRGB"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_s3tc_srgb", "GL_EXT_texture_compression_s3tc GL_NV_sRGB_formats"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, ExtsOnly("GL_EXT_texture_compression_s3tc GL_EXT_texture_sRGB"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_EXT_texture_compression_s3tc_srgb", "GL_EXT_texture_compression_s3tc GL_NV_sRGB_formats"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| |
| // From GL_OES_compressed_ETC1_RGB8_texture |
| InsertFormatMapping(&map, GL_ETC1_RGB8_OES, VersionOrExts(4, 3, "GL_ARB_ES3_compatibility"), AlwaysSupported(), NeverSupported(), VersionOrExts(3, 0, "GL_OES_compressed_ETC1_RGB8_texture"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| |
| // From GL_OES_texture_compression_astc |
| // | Format | OpenGL texture | Filter | Render | OpenGL ES texture support | Filter | ES attachment | ES renderbuffer | |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_4x4_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_5x4_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_5x5_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_6x5_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_6x6_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_8x5_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_8x6_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_8x8_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_10x5_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_10x6_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_10x8_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_10x10_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_12x10_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_12x12_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR, ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_KHR_texture_compression_astc_ldr"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_3x3x3_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_4x3x3_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_4x4x3_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_4x4x4_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_5x4x4_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_5x5x4_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_5x5x5_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_6x5x5_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_6x6x5_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_ASTC_6x6x6_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_OES_texture_compression_astc"), AlwaysSupported(), NeverSupported(), NeverSupported()); |
| |
| // From GL_IMG_texture_compression_pvrtc |
| // | Format | OpenGL texture support | Filter | Render | OpenGL ES texture support | Filter | OpenGL ES texture attachment support | OpenGL ES renderbuffer support | |
| InsertFormatMapping(&map, GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, ExtsOnly("GL_IMG_texture_compression_pvrtc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_IMG_texture_compression_pvrtc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, ExtsOnly("GL_IMG_texture_compression_pvrtc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_IMG_texture_compression_pvrtc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, ExtsOnly("GL_IMG_texture_compression_pvrtc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_IMG_texture_compression_pvrtc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, ExtsOnly("GL_IMG_texture_compression_pvrtc"), AlwaysSupported(), NeverSupported(), ExtsOnly("GL_IMG_texture_compression_pvrtc"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| |
| // From GL_EXT_pvrtc_sRGB |
| // | Format | OpenGL texture support | Filter | Render | OpenGL ES texture support | Filter | OpenGL ES texture attachment support | OpenGL ES renderbuffer support | |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_EXT_pvrtc_sRGB"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_EXT_pvrtc_sRGB"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_EXT_pvrtc_sRGB"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| InsertFormatMapping(&map, GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT, NeverSupported(), NeverSupported(), NeverSupported(), ExtsOnly("GL_EXT_pvrtc_sRGB"), AlwaysSupported(), NeverSupported(), NeverSupported() ); |
| |
| // clang-format on |
| |
| return map; |
| } |
| |
| static const InternalFormatInfoMap &GetInternalFormatMap() |
| { |
| static const angle::base::NoDestructor<InternalFormatInfoMap> formatMap( |
| BuildInternalFormatInfoMap()); |
| return *formatMap; |
| } |
| |
| const InternalFormat &GetInternalFormatInfo(GLenum internalFormat, StandardGL standard) |
| { |
| const InternalFormatInfoMap &formatMap = GetInternalFormatMap(); |
| InternalFormatInfoMap::const_iterator iter = formatMap.find(internalFormat); |
| if (iter != formatMap.end()) |
| { |
| const InternalFormatInfo &info = iter->second; |
| switch (standard) |
| { |
| case STANDARD_GL_ES: |
| return info.glesInfo; |
| case STANDARD_GL_DESKTOP: |
| return info.glInfo; |
| default: |
| UNREACHABLE(); |
| break; |
| } |
| } |
| |
| static const angle::base::NoDestructor<InternalFormat> defaultInternalFormat; |
| return *defaultInternalFormat; |
| } |
| |
| static bool IsLUMAFormat(GLenum format) |
| { |
| return (format == GL_LUMINANCE || format == GL_ALPHA || format == GL_LUMINANCE_ALPHA); |
| } |
| |
| static GLenum EmulateLUMAFormat(const GLenum format) |
| { |
| // This is needed separately from EmulateLUMA because some format/type combinations that come in |
| // to GetNativeFormat don't have entries in the internal format map. |
| |
| ASSERT(IsLUMAFormat(format)); |
| |
| if (format == GL_LUMINANCE || format == GL_ALPHA) |
| return GL_RED; |
| |
| return GL_RG; |
| } |
| |
| static const gl::InternalFormat &EmulateLUMA(const gl::InternalFormat &internalFormat) |
| { |
| ASSERT(IsLUMAFormat(internalFormat.format)); |
| |
| // Work around deprecated luminance/alpha formats in the OpenGL core profile, and OpenGL ES 3.0 |
| // and greater, by backing them with R or RG textures. |
| return gl::GetInternalFormatInfo(EmulateLUMAFormat(internalFormat.format), internalFormat.type); |
| } |
| |
| static GLenum GetNativeInternalFormat(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| const gl::InternalFormat &internalFormat) |
| { |
| GLenum result = internalFormat.internalFormat; |
| |
| if (functions->standard == STANDARD_GL_DESKTOP) |
| { |
| // Use sized internal formats whenever possible to guarantee the requested precision. |
| // On Desktop GL, passing an internal format of GL_RGBA will generate a GL_RGBA8 texture |
| // even if the provided type is GL_FLOAT. |
| result = internalFormat.sizedInternalFormat; |
| |
| if (features.avoid1BitAlphaTextureFormats.enabled && internalFormat.alphaBits == 1) |
| { |
| // Use an 8-bit format instead |
| result = GL_RGBA8; |
| } |
| |
| if (features.rgba4IsNotSupportedForColorRendering.enabled && |
| internalFormat.sizedInternalFormat == GL_RGBA4) |
| { |
| // Use an 8-bit format instead |
| result = GL_RGBA8; |
| } |
| |
| if (internalFormat.sizedInternalFormat == GL_RGB565 && |
| !functions->isAtLeastGL(gl::Version(4, 1)) && |
| !functions->hasGLExtension("GL_ARB_ES2_compatibility")) |
| { |
| // GL_RGB565 is required for basic ES2 functionality but was not added to desktop GL |
| // until 4.1. |
| // Work around this by using an 8-bit format instead. |
| result = GL_RGB8; |
| } |
| |
| if (internalFormat.sizedInternalFormat == GL_BGRA8_EXT) |
| { |
| // GLES accepts GL_BGRA as an internal format but desktop GL only accepts it as a type. |
| // Update the internal format to GL_RGBA. |
| result = GL_RGBA8; |
| } |
| |
| if ((functions->profile & GL_CONTEXT_CORE_PROFILE_BIT) != 0) |
| { |
| if (IsLUMAFormat(internalFormat.format)) |
| { |
| result = EmulateLUMA(internalFormat).sizedInternalFormat; |
| } |
| } |
| } |
| else if (functions->isAtLeastGLES(gl::Version(3, 0))) |
| { |
| if (internalFormat.componentType == GL_FLOAT) |
| { |
| if (!internalFormat.isLUMA()) |
| { |
| // Use sized internal formats for floating point textures. Extensions such as |
| // EXT_color_buffer_float require the sized formats to be renderable. |
| result = internalFormat.sizedInternalFormat; |
| } |
| else if ((internalFormat.type == GL_FLOAT && |
| !functions->hasGLESExtension("GL_OES_texture_float")) || |
| (internalFormat.type == GL_HALF_FLOAT_OES && |
| !functions->hasGLESExtension("GL_OES_texture_half_float"))) |
| { |
| // The legacy luminance/alpha formats from OES_texture_float are emulated with R/RG |
| // textures. |
| if (IsLUMAFormat(internalFormat.format)) |
| { |
| result = EmulateLUMA(internalFormat).sizedInternalFormat; |
| } |
| } |
| } |
| else if (internalFormat.format == GL_RED_EXT || internalFormat.format == GL_RG_EXT) |
| { |
| // Workaround Adreno driver not supporting unsized EXT_texture_rg formats |
| result = internalFormat.sizedInternalFormat; |
| } |
| else if (internalFormat.colorEncoding == GL_SRGB) |
| { |
| if (features.unsizedsRGBReadPixelsDoesntTransform.enabled) |
| { |
| // Work around some Adreno driver bugs that don't read back SRGB data correctly when |
| // it's in unsized SRGB texture formats. |
| result = internalFormat.sizedInternalFormat; |
| } |
| else if (!functions->hasGLESExtension("GL_EXT_sRGB")) |
| { |
| // Unsized sRGB internal formats are unlikely to be supported by the |
| // driver. Transform them to sized internal formats. |
| if (internalFormat.internalFormat == GL_SRGB || |
| internalFormat.internalFormat == GL_SRGB_ALPHA_EXT) |
| { |
| result = internalFormat.sizedInternalFormat; |
| } |
| } |
| } |
| else if ((internalFormat.internalFormat == GL_DEPTH_COMPONENT || |
| internalFormat.internalFormat == GL_DEPTH_STENCIL) && |
| !functions->hasGLESExtension("GL_OES_depth_texture")) |
| { |
| // Use ES 3.0 sized internal formats for depth/stencil textures when the driver doesn't |
| // advertise GL_OES_depth_texture, since it's likely the driver will reject unsized |
| // internal formats. |
| switch (internalFormat.internalFormat) |
| { |
| case GL_DEPTH_COMPONENT: |
| if (internalFormat.type == GL_UNSIGNED_SHORT) |
| { |
| // Could consider promoting this to a higher bit depth |
| result = GL_DEPTH_COMPONENT16; |
| } |
| else if (internalFormat.type == GL_UNSIGNED_INT) |
| { |
| if (functions->hasGLESExtension("GL_OES_depth32")) |
| { |
| result = GL_DEPTH_COMPONENT32_OES; |
| } |
| else |
| { |
| // Best-effort attempt to provide as many bits as possible. |
| result = GL_DEPTH_COMPONENT24; |
| } |
| } |
| else if (internalFormat.type == GL_FLOAT) |
| { |
| result = GL_DEPTH_COMPONENT32F; |
| } |
| break; |
| case GL_DEPTH_STENCIL: |
| if (internalFormat.type == GL_UNSIGNED_INT_24_8) |
| { |
| result = GL_DEPTH24_STENCIL8; |
| } |
| else if (internalFormat.type == GL_FLOAT_32_UNSIGNED_INT_24_8_REV) |
| { |
| result = GL_DEPTH32F_STENCIL8; |
| } |
| break; |
| default: |
| UNREACHABLE(); |
| break; |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| static GLenum GetNativeFormat(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum format, |
| GLenum type) |
| { |
| GLenum result = format; |
| |
| if (functions->standard == STANDARD_GL_DESKTOP) |
| { |
| // The ES SRGB extensions require that the provided format is GL_SRGB or SRGB_ALPHA but |
| // the desktop GL extensions only accept GL_RGB or GL_RGBA. Convert them. |
| if (format == GL_SRGB) |
| { |
| result = GL_RGB; |
| } |
| |
| if (format == GL_SRGB_ALPHA) |
| { |
| result = GL_RGBA; |
| } |
| |
| if ((functions->profile & GL_CONTEXT_CORE_PROFILE_BIT) != 0) |
| { |
| // Work around deprecated luminance alpha formats in the OpenGL core profile by backing |
| // them with R or RG textures. |
| if (IsLUMAFormat(format)) |
| { |
| result = EmulateLUMAFormat(format); |
| } |
| } |
| } |
| else if (functions->isAtLeastGLES(gl::Version(3, 0))) |
| { |
| if (features.unsizedsRGBReadPixelsDoesntTransform.enabled || |
| !functions->hasGLESExtension("GL_EXT_sRGB")) |
| { |
| if (format == GL_SRGB) |
| { |
| result = GL_RGB; |
| } |
| |
| if (format == GL_SRGB_ALPHA_EXT) |
| { |
| result = GL_RGBA; |
| } |
| } |
| |
| if ((type == GL_FLOAT && !functions->hasGLESExtension("GL_OES_texture_float")) || |
| (type == GL_HALF_FLOAT_OES && |
| !functions->hasGLESExtension("GL_OES_texture_half_float"))) |
| { |
| // On ES 3.0 systems that don't have GL_OES_texture_float or OES_texture_half_float, the |
| // LUMINANCE/ALPHA formats from those extensions must be emulated with R/RG textures. |
| if (IsLUMAFormat(format)) |
| { |
| result = EmulateLUMAFormat(format); |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| static GLenum GetNativeCompressedFormat(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum format) |
| { |
| GLenum result = format; |
| |
| if (functions->standard == STANDARD_GL_DESKTOP) |
| { |
| if (format == GL_ETC1_RGB8_OES) |
| { |
| // GL_ETC1_RGB8_OES is not available in any desktop GL extension but the compression |
| // format is forwards compatible so just use the ETC2 format. |
| result = GL_COMPRESSED_RGB8_ETC2; |
| } |
| } |
| |
| if (functions->isAtLeastGLES(gl::Version(3, 0))) |
| { |
| if (format == GL_ETC1_RGB8_OES) |
| { |
| // Pass GL_COMPRESSED_RGB8_ETC2 as the target format in ES3 and higher because it |
| // becomes a core format. |
| result = GL_COMPRESSED_RGB8_ETC2; |
| } |
| } |
| |
| if (features.avoidDXT1sRGBTextureFormat.enabled) |
| { |
| if (format == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT) |
| { |
| // Pass GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT instead to workaround driver bug. |
| result = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT; |
| } |
| } |
| |
| return result; |
| } |
| |
| static GLenum GetNativeType(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum format, |
| GLenum type) |
| { |
| GLenum result = type; |
| |
| if (functions->standard == STANDARD_GL_DESKTOP) |
| { |
| if (type == GL_HALF_FLOAT_OES) |
| { |
| // The enums differ for the OES half float extensions and desktop GL spec. |
| // Update it. |
| result = GL_HALF_FLOAT; |
| } |
| } |
| else if (functions->isAtLeastGLES(gl::Version(3, 0))) |
| { |
| if (type == GL_HALF_FLOAT_OES) |
| { |
| if (!IsLUMAFormat(format) || !functions->hasGLESExtension("GL_OES_texture_half_float")) |
| { |
| // In ES3, the luminance formats come from OES_texture_half_float, which uses |
| // HALF_FLOAT_OES. Other formats (like RGBA) use HALF_FLOAT (non-OES) in ES3. |
| // If they're emulated (see above), use HALF_FLOAT. |
| result = GL_HALF_FLOAT; |
| } |
| } |
| } |
| else if (functions->standard == STANDARD_GL_ES && functions->version == gl::Version(2, 0)) |
| { |
| // On ES2, convert GL_HALF_FLOAT to GL_HALF_FLOAT_OES as a convenience for internal |
| // functions. It should not be possible to get here by a normal glTexImage2D call. |
| if (type == GL_HALF_FLOAT) |
| { |
| ASSERT(functions->hasGLExtension("GL_OES_texture_half_float")); |
| result = GL_HALF_FLOAT_OES; |
| } |
| } |
| |
| return result; |
| } |
| |
| static GLenum GetNativeReadType(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum type) |
| { |
| GLenum result = type; |
| |
| if (functions->standard == STANDARD_GL_DESKTOP || functions->isAtLeastGLES(gl::Version(3, 0))) |
| { |
| if (type == GL_HALF_FLOAT_OES) |
| { |
| // The enums differ for the OES half float extensions and desktop GL spec. Update it. |
| result = GL_HALF_FLOAT; |
| } |
| } |
| |
| return result; |
| } |
| |
| static GLenum GetNativeReadFormat(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum attachmentReadFormat, |
| GLenum format, |
| GLenum type) |
| { |
| GLenum result = format; |
| if (features.readPixelsUsingImplementationColorReadFormatForNorm16.enabled && |
| type == GL_UNSIGNED_SHORT && format == GL_RGBA && |
| (attachmentReadFormat == GL_RED || attachmentReadFormat == GL_RG)) |
| { |
| result = attachmentReadFormat; |
| } |
| return result; |
| } |
| |
| TexImageFormat GetTexImageFormat(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum internalFormat, |
| GLenum format, |
| GLenum type) |
| { |
| TexImageFormat result; |
| result.internalFormat = GetNativeInternalFormat( |
| functions, features, gl::GetInternalFormatInfo(internalFormat, type)); |
| result.format = GetNativeFormat(functions, features, format, type); |
| result.type = GetNativeType(functions, features, format, type); |
| return result; |
| } |
| |
| TexSubImageFormat GetTexSubImageFormat(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum format, |
| GLenum type) |
| { |
| TexSubImageFormat result; |
| result.format = GetNativeFormat(functions, features, format, type); |
| result.type = GetNativeType(functions, features, format, type); |
| return result; |
| } |
| |
| CompressedTexImageFormat GetCompressedTexImageFormat(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum internalFormat) |
| { |
| CompressedTexImageFormat result; |
| result.internalFormat = GetNativeCompressedFormat(functions, features, internalFormat); |
| return result; |
| } |
| |
| CompressedTexSubImageFormat GetCompressedSubTexImageFormat(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum format) |
| { |
| CompressedTexSubImageFormat result; |
| result.format = GetNativeCompressedFormat(functions, features, format); |
| return result; |
| } |
| |
| CopyTexImageImageFormat GetCopyTexImageImageFormat(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum internalFormat, |
| GLenum framebufferType) |
| { |
| CopyTexImageImageFormat result; |
| result.internalFormat = GetNativeInternalFormat( |
| functions, features, gl::GetInternalFormatInfo(internalFormat, framebufferType)); |
| return result; |
| } |
| |
| TexStorageFormat GetTexStorageFormat(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum internalFormat) |
| { |
| TexStorageFormat result; |
| // TexStorage entrypoints accept both compressed and uncompressed formats. |
| // All compressed formats are sized. |
| gl::InternalFormat sizedFormatInfo = gl::GetSizedInternalFormatInfo(internalFormat); |
| if (sizedFormatInfo.compressed) |
| { |
| result.internalFormat = GetNativeCompressedFormat(functions, features, internalFormat); |
| } |
| else |
| { |
| result.internalFormat = GetNativeInternalFormat(functions, features, sizedFormatInfo); |
| } |
| |
| return result; |
| } |
| |
| RenderbufferFormat GetRenderbufferFormat(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum internalFormat) |
| { |
| RenderbufferFormat result; |
| result.internalFormat = GetNativeInternalFormat(functions, features, |
| gl::GetSizedInternalFormatInfo(internalFormat)); |
| return result; |
| } |
| ReadPixelsFormat GetReadPixelsFormat(const FunctionsGL *functions, |
| const angle::FeaturesGL &features, |
| GLenum attachmentReadFormat, |
| GLenum format, |
| GLenum type) |
| { |
| ReadPixelsFormat result; |
| result.format = GetNativeReadFormat(functions, features, attachmentReadFormat, format, type); |
| result.type = GetNativeReadType(functions, features, type); |
| return result; |
| } |
| } // namespace nativegl |
| |
| } // namespace rx |
