704 struct Caps  struct
715     GLint64 maxElementIndex       = 0;
716     GLint max3DTextureSize        = 0;
717     GLint max2DTextureSize        = 0;
718     GLint maxRectangleTextureSize = 0;
719     GLint maxArrayTextureLayers   = 0;
720     GLfloat maxLODBias            = 0.0f;
721     GLint maxCubeMapTextureSize   = 0;
722     GLint maxRenderbufferSize     = 0;
723     GLfloat minAliasedPointSize   = 1.0f;
724     GLfloat maxAliasedPointSize   = 1.0f;
725     GLfloat minAliasedLineWidth   = 0.0f;
726     GLfloat maxAliasedLineWidth   = 0.0f;
729     GLint maxDrawBuffers         = 0;
730     GLint maxFramebufferWidth    = 0;
731     GLint maxFramebufferHeight   = 0;
732     GLint maxFramebufferSamples  = 0;
733     GLint maxColorAttachments    = 0;
734     GLint maxViewportWidth       = 0;
735     GLint maxViewportHeight      = 0;
736     GLint maxSampleMaskWords     = 0;
737     GLint maxColorTextureSamples = 0;
738     GLint maxDepthTextureSamples = 0;
739     GLint maxIntegerSamples      = 0;
740     GLint64 maxServerWaitTimeout = 0;
743     GLint maxVertexAttribRelativeOffset = 0;
744     GLint maxVertexAttribBindings       = 0;
745     GLint maxVertexAttribStride         = 0;
746     GLint maxElementsIndices            = 0;
747     GLint maxElementsVertices           = 0;
748     std::vector<GLenum> compressedTextureFormats;
749     std::vector<GLenum> programBinaryFormats;
750     std::vector<GLenum> shaderBinaryFormats;
751     TypePrecision vertexHighpFloat;
752     TypePrecision vertexMediumpFloat;
753     TypePrecision vertexLowpFloat;
754     TypePrecision vertexHighpInt;
755     TypePrecision vertexMediumpInt;
756     TypePrecision vertexLowpInt;
757     TypePrecision fragmentHighpFloat;
758     TypePrecision fragmentMediumpFloat;
759     TypePrecision fragmentLowpFloat;
760     TypePrecision fragmentHighpInt;
761     TypePrecision fragmentMediumpInt;
762     TypePrecision fragmentLowpInt;
773     ShaderMap<GLint> maxShaderUniformBlocks        = {};
774     ShaderMap<GLint> maxShaderTextureImageUnits    = {};
775     ShaderMap<GLint> maxShaderStorageBlocks        = {};
776     ShaderMap<GLint> maxShaderUniformComponents    = {};
777     ShaderMap<GLint> maxShaderAtomicCounterBuffers = {};
778     ShaderMap<GLint> maxShaderAtomicCounters       = {};
779     ShaderMap<GLint> maxShaderImageUniforms        = {};
784     ShaderMap<GLint64> maxCombinedShaderUniformComponents = {};
787     GLint maxVertexAttributes       = 0;
788     GLint maxVertexUniformVectors   = 0;
789     GLint maxVertexOutputComponents = 0;
792     GLint maxFragmentUniformVectors     = 0;
793     GLint maxFragmentInputComponents    = 0;
794     GLint minProgramTextureGatherOffset = 0;
795     GLint maxProgramTextureGatherOffset = 0;
796     GLint minProgramTexelOffset         = 0;
797     GLint maxProgramTexelOffset         = 0;
800     std::array<GLint, 3> maxComputeWorkGroupCount = {0, 0, 0};
801     std::array<GLint, 3> maxComputeWorkGroupSize  = {0, 0, 0};
802     GLint maxComputeWorkGroupInvocations          = 0;
803     GLint maxComputeSharedMemorySize              = 0;
806     GLint maxUniformBufferBindings         = 0;
807     GLint64 maxUniformBlockSize            = 0;
808     GLint uniformBufferOffsetAlignment     = 0;
809     GLint maxCombinedUniformBlocks         = 0;
810     GLint maxVaryingComponents             = 0;
811     GLint maxVaryingVectors                = 0;
812     GLint maxCombinedTextureImageUnits     = 0;
813     GLint maxCombinedShaderOutputResources = 0;
816     GLint maxUniformLocations                = 0;
817     GLint maxAtomicCounterBufferBindings     = 0;
818     GLint maxAtomicCounterBufferSize         = 0;
819     GLint maxCombinedAtomicCounterBuffers    = 0;
820     GLint maxCombinedAtomicCounters          = 0;
821     GLint maxImageUnits                      = 0;
822     GLint maxCombinedImageUniforms           = 0;
823     GLint maxShaderStorageBufferBindings     = 0;
824     GLint64 maxShaderStorageBlockSize        = 0;
825     GLint maxCombinedShaderStorageBlocks     = 0;
826     GLint shaderStorageBufferOffsetAlignment = 0;
829     GLint maxTransformFeedbackInterleavedComponents = 0;
853     // GLES1 emulation: Caps for ES 1.1. Taken from Table 6.20 / 6.22 in the OpenGL ES 1.1 spec.  argument
867 Caps GenerateMinimumCaps(const Version &clientVersion, const Extensions &extensions);  argument
873 struct Caps  struct
878     bool textureNPOT;