| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "GrGLCaps.h" |
| #include "GrContextOptions.h" |
| #include "GrGLContext.h" |
| #include "GrGLRenderTarget.h" |
| #include "GrGLTexture.h" |
| #include "GrShaderCaps.h" |
| #include "GrSurfaceProxyPriv.h" |
| #include "SkTSearch.h" |
| #include "SkTSort.h" |
| #include "instanced/GLInstancedRendering.h" |
| |
| GrGLCaps::GrGLCaps(const GrContextOptions& contextOptions, |
| const GrGLContextInfo& ctxInfo, |
| const GrGLInterface* glInterface) : INHERITED(contextOptions) { |
| fStandard = ctxInfo.standard(); |
| |
| fStencilFormats.reset(); |
| fMSFBOType = kNone_MSFBOType; |
| fInvalidateFBType = kNone_InvalidateFBType; |
| fMapBufferType = kNone_MapBufferType; |
| fTransferBufferType = kNone_TransferBufferType; |
| fMaxFragmentUniformVectors = 0; |
| fUnpackRowLengthSupport = false; |
| fUnpackFlipYSupport = false; |
| fPackRowLengthSupport = false; |
| fPackFlipYSupport = false; |
| fTextureUsageSupport = false; |
| fTextureRedSupport = false; |
| fAlpha8IsRenderable = false; |
| fImagingSupport = false; |
| fVertexArrayObjectSupport = false; |
| fDirectStateAccessSupport = false; |
| fDebugSupport = false; |
| fES2CompatibilitySupport = false; |
| fDrawIndirectSupport = false; |
| fMultiDrawIndirectSupport = false; |
| fBaseInstanceSupport = false; |
| fIsCoreProfile = false; |
| fBindFragDataLocationSupport = false; |
| fRectangleTextureSupport = false; |
| fTextureSwizzleSupport = false; |
| fRGBA8888PixelsOpsAreSlow = false; |
| fPartialFBOReadIsSlow = false; |
| fMipMapLevelAndLodControlSupport = false; |
| fRGBAToBGRAReadbackConversionsAreSlow = false; |
| fDoManualMipmapping = false; |
| fSRGBDecodeDisableSupport = false; |
| fSRGBDecodeDisableAffectsMipmaps = false; |
| fClearToBoundaryValuesIsBroken = false; |
| fClearTextureSupport = false; |
| fDrawArraysBaseVertexIsBroken = false; |
| fUseDrawToClearStencilClip = false; |
| fDisallowTexSubImageForUnormConfigTexturesEverBoundToFBO = false; |
| fUseDrawInsteadOfAllRenderTargetWrites = false; |
| fRequiresCullFaceEnableDisableWhenDrawingLinesAfterNonLines = false; |
| |
| fBlitFramebufferFlags = kNoSupport_BlitFramebufferFlag; |
| |
| fShaderCaps.reset(new GrShaderCaps(contextOptions)); |
| |
| this->init(contextOptions, ctxInfo, glInterface); |
| } |
| |
| void GrGLCaps::init(const GrContextOptions& contextOptions, |
| const GrGLContextInfo& ctxInfo, |
| const GrGLInterface* gli) { |
| GrGLStandard standard = ctxInfo.standard(); |
| GrGLVersion version = ctxInfo.version(); |
| |
| if (kGLES_GrGLStandard == standard) { |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_FRAGMENT_UNIFORM_VECTORS, |
| &fMaxFragmentUniformVectors); |
| } else { |
| SkASSERT(kGL_GrGLStandard == standard); |
| GrGLint max; |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, &max); |
| fMaxFragmentUniformVectors = max / 4; |
| if (version >= GR_GL_VER(3, 2)) { |
| GrGLint profileMask; |
| GR_GL_GetIntegerv(gli, GR_GL_CONTEXT_PROFILE_MASK, &profileMask); |
| fIsCoreProfile = SkToBool(profileMask & GR_GL_CONTEXT_CORE_PROFILE_BIT); |
| } |
| } |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_VERTEX_ATTRIBS, &fMaxVertexAttributes); |
| |
| if (kGL_GrGLStandard == standard) { |
| fUnpackRowLengthSupport = true; |
| fUnpackFlipYSupport = false; |
| fPackRowLengthSupport = true; |
| fPackFlipYSupport = false; |
| } else { |
| fUnpackRowLengthSupport = version >= GR_GL_VER(3,0) || |
| ctxInfo.hasExtension("GL_EXT_unpack_subimage"); |
| fUnpackFlipYSupport = ctxInfo.hasExtension("GL_CHROMIUM_flipy"); |
| fPackRowLengthSupport = version >= GR_GL_VER(3,0) || |
| ctxInfo.hasExtension("GL_NV_pack_subimage"); |
| fPackFlipYSupport = |
| ctxInfo.hasExtension("GL_ANGLE_pack_reverse_row_order"); |
| } |
| |
| fTextureUsageSupport = (kGLES_GrGLStandard == standard) && |
| ctxInfo.hasExtension("GL_ANGLE_texture_usage"); |
| |
| if (kGL_GrGLStandard == standard) { |
| fTextureBarrierSupport = version >= GR_GL_VER(4,5) || |
| ctxInfo.hasExtension("GL_ARB_texture_barrier") || |
| ctxInfo.hasExtension("GL_NV_texture_barrier"); |
| } else { |
| fTextureBarrierSupport = ctxInfo.hasExtension("GL_NV_texture_barrier"); |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| fSampleLocationsSupport = version >= GR_GL_VER(3,2) || |
| ctxInfo.hasExtension("GL_ARB_texture_multisample"); |
| } else { |
| fSampleLocationsSupport = version >= GR_GL_VER(3,1); |
| } |
| |
| // ARB_texture_rg is part of OpenGL 3.0, but osmesa doesn't support GL_RED |
| // and GL_RG on FBO textures. |
| if (kOSMesa_GrGLRenderer != ctxInfo.renderer()) { |
| if (kGL_GrGLStandard == standard) { |
| fTextureRedSupport = version >= GR_GL_VER(3,0) || |
| ctxInfo.hasExtension("GL_ARB_texture_rg"); |
| } else { |
| fTextureRedSupport = version >= GR_GL_VER(3,0) || |
| ctxInfo.hasExtension("GL_EXT_texture_rg"); |
| } |
| } |
| fImagingSupport = kGL_GrGLStandard == standard && |
| ctxInfo.hasExtension("GL_ARB_imaging"); |
| |
| // A driver but on the nexus 6 causes incorrect dst copies when invalidate is called beforehand. |
| // Thus we are blacklisting this extension for now on Adreno4xx devices. |
| if (kAdreno4xx_GrGLRenderer != ctxInfo.renderer() && |
| ((kGL_GrGLStandard == standard && version >= GR_GL_VER(4,3)) || |
| (kGLES_GrGLStandard == standard && version >= GR_GL_VER(3,0)) || |
| ctxInfo.hasExtension("GL_ARB_invalidate_subdata"))) { |
| fDiscardRenderTargetSupport = true; |
| fInvalidateFBType = kInvalidate_InvalidateFBType; |
| } else if (ctxInfo.hasExtension("GL_EXT_discard_framebuffer")) { |
| fDiscardRenderTargetSupport = true; |
| fInvalidateFBType = kDiscard_InvalidateFBType; |
| } |
| |
| if (kARM_GrGLVendor == ctxInfo.vendor() || kImagination_GrGLVendor == ctxInfo.vendor()) { |
| fFullClearIsFree = true; |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| fVertexArrayObjectSupport = version >= GR_GL_VER(3, 0) || |
| ctxInfo.hasExtension("GL_ARB_vertex_array_object") || |
| ctxInfo.hasExtension("GL_APPLE_vertex_array_object"); |
| } else { |
| fVertexArrayObjectSupport = version >= GR_GL_VER(3, 0) || |
| ctxInfo.hasExtension("GL_OES_vertex_array_object"); |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| fDirectStateAccessSupport = ctxInfo.hasExtension("GL_EXT_direct_state_access"); |
| } else { |
| fDirectStateAccessSupport = false; |
| } |
| |
| if (kGL_GrGLStandard == standard && version >= GR_GL_VER(4,3)) { |
| fDebugSupport = true; |
| } else { |
| fDebugSupport = ctxInfo.hasExtension("GL_KHR_debug"); |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| fES2CompatibilitySupport = ctxInfo.hasExtension("GL_ARB_ES2_compatibility"); |
| } |
| else { |
| fES2CompatibilitySupport = true; |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| fMultisampleDisableSupport = true; |
| } else { |
| fMultisampleDisableSupport = ctxInfo.hasExtension("GL_EXT_multisample_compatibility"); |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| // 3.1 has draw_instanced but not instanced_arrays, for the time being we only care about |
| // instanced arrays, but we could make this more granular if we wanted |
| fInstanceAttribSupport = |
| version >= GR_GL_VER(3, 2) || |
| (ctxInfo.hasExtension("GL_ARB_draw_instanced") && |
| ctxInfo.hasExtension("GL_ARB_instanced_arrays")); |
| } else { |
| fInstanceAttribSupport = |
| version >= GR_GL_VER(3, 0) || |
| (ctxInfo.hasExtension("GL_EXT_draw_instanced") && |
| ctxInfo.hasExtension("GL_EXT_instanced_arrays")); |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| if (version >= GR_GL_VER(3, 0)) { |
| fBindFragDataLocationSupport = true; |
| } |
| } else { |
| if (version >= GR_GL_VER(3, 0) && ctxInfo.hasExtension("GL_EXT_blend_func_extended")) { |
| fBindFragDataLocationSupport = true; |
| } |
| } |
| |
| fBindUniformLocationSupport = ctxInfo.hasExtension("GL_CHROMIUM_bind_uniform_location"); |
| |
| if (kGL_GrGLStandard == standard) { |
| if (version >= GR_GL_VER(3, 1) || ctxInfo.hasExtension("GL_ARB_texture_rectangle")) { |
| // We also require textureSize() support for rectangle 2D samplers which was added in |
| // GLSL 1.40. |
| if (ctxInfo.glslGeneration() >= k140_GrGLSLGeneration) { |
| fRectangleTextureSupport = true; |
| } |
| } |
| } else { |
| // Command buffer exposes this in GL ES context for Chromium reasons, |
| // but it should not be used. Also, at the time of writing command buffer |
| // lacks TexImage2D support and ANGLE lacks GL ES 3.0 support. |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| if (version >= GR_GL_VER(3,3) || ctxInfo.hasExtension("GL_ARB_texture_swizzle")) { |
| fTextureSwizzleSupport = true; |
| } |
| } else { |
| if (version >= GR_GL_VER(3,0)) { |
| fTextureSwizzleSupport = true; |
| } |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| fMipMapLevelAndLodControlSupport = true; |
| } else if (kGLES_GrGLStandard == standard) { |
| if (version >= GR_GL_VER(3,0)) { |
| fMipMapLevelAndLodControlSupport = true; |
| } |
| } |
| |
| #ifdef SK_BUILD_FOR_WIN |
| // We're assuming that on Windows Chromium we're using ANGLE. |
| bool isANGLE = kANGLE_GrGLDriver == ctxInfo.driver() || |
| kChromium_GrGLDriver == ctxInfo.driver(); |
| // Angle has slow read/write pixel paths for 32bit RGBA (but fast for BGRA). |
| fRGBA8888PixelsOpsAreSlow = isANGLE; |
| // On DX9 ANGLE reading a partial FBO is slow. TODO: Check whether this is still true and |
| // check DX11 ANGLE. |
| fPartialFBOReadIsSlow = isANGLE; |
| #endif |
| |
| bool isMESA = kMesa_GrGLDriver == ctxInfo.driver(); |
| bool isMAC = false; |
| #ifdef SK_BUILD_FOR_MAC |
| isMAC = true; |
| #endif |
| |
| // Both mesa and mac have reduced performance if reading back an RGBA framebuffer as BGRA or |
| // vis-versa. |
| fRGBAToBGRAReadbackConversionsAreSlow = isMESA || isMAC; |
| |
| if (kGL_GrGLStandard == standard) { |
| if (version >= GR_GL_VER(4,4) || ctxInfo.hasExtension("GL_ARB_clear_texture")) { |
| // glClearTexImage seems to have a bug in NVIDIA drivers that was fixed sometime between |
| // 340.96 and 367.57. |
| if (ctxInfo.driver() != kNVIDIA_GrGLDriver || |
| ctxInfo.driverVersion() >= GR_GL_DRIVER_VER(367, 57)) { |
| fClearTextureSupport = true; |
| } |
| } |
| } else if (ctxInfo.hasExtension("GL_EXT_clear_texture")) { |
| // Calling glClearTexImage crashes on the NexusPlayer. |
| if (kPowerVRRogue_GrGLRenderer != ctxInfo.renderer()) { |
| fClearTextureSupport = true; |
| } |
| } |
| |
| /************************************************************************** |
| * GrShaderCaps fields |
| **************************************************************************/ |
| |
| // This must be called after fCoreProfile is set on the GrGLCaps |
| this->initGLSL(ctxInfo); |
| GrShaderCaps* shaderCaps = fShaderCaps.get(); |
| |
| if (!contextOptions.fSuppressPathRendering) { |
| shaderCaps->fPathRenderingSupport = this->hasPathRenderingSupport(ctxInfo, gli); |
| } |
| |
| // For now these two are equivalent but we could have dst read in shader via some other method. |
| // Before setting this, initGLSL() must have been called. |
| shaderCaps->fDstReadInShaderSupport = shaderCaps->fFBFetchSupport; |
| |
| // Enable supported shader-related caps |
| if (kGL_GrGLStandard == standard) { |
| shaderCaps->fDualSourceBlendingSupport = (ctxInfo.version() >= GR_GL_VER(3, 3) || |
| ctxInfo.hasExtension("GL_ARB_blend_func_extended")) && |
| GrGLSLSupportsNamedFragmentShaderOutputs(ctxInfo.glslGeneration()); |
| shaderCaps->fShaderDerivativeSupport = true; |
| // we don't support GL_ARB_geometry_shader4, just GL 3.2+ GS |
| shaderCaps->fGeometryShaderSupport = ctxInfo.version() >= GR_GL_VER(3, 2) && |
| ctxInfo.glslGeneration() >= k150_GrGLSLGeneration; |
| shaderCaps->fIntegerSupport = ctxInfo.version() >= GR_GL_VER(3, 0) && |
| ctxInfo.glslGeneration() >= k130_GrGLSLGeneration; |
| } |
| else { |
| shaderCaps->fDualSourceBlendingSupport = ctxInfo.hasExtension("GL_EXT_blend_func_extended"); |
| |
| shaderCaps->fShaderDerivativeSupport = ctxInfo.version() >= GR_GL_VER(3, 0) || |
| ctxInfo.hasExtension("GL_OES_standard_derivatives"); |
| |
| shaderCaps->fGeometryShaderSupport = ctxInfo.hasExtension("GL_EXT_geometry_shader"); |
| |
| shaderCaps->fIntegerSupport = ctxInfo.version() >= GR_GL_VER(3, 0) && |
| ctxInfo.glslGeneration() >= k330_GrGLSLGeneration; // We use this value for GLSL ES 3.0. |
| } |
| |
| // Protect ourselves against tracking huge amounts of texture state. |
| static const uint8_t kMaxSaneSamplers = 32; |
| GrGLint maxSamplers; |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &maxSamplers); |
| shaderCaps->fMaxVertexSamplers = SkTMin<GrGLint>(kMaxSaneSamplers, maxSamplers); |
| if (shaderCaps->fGeometryShaderSupport) { |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS, &maxSamplers); |
| shaderCaps->fMaxGeometrySamplers = SkTMin<GrGLint>(kMaxSaneSamplers, maxSamplers); |
| } |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_TEXTURE_IMAGE_UNITS, &maxSamplers); |
| shaderCaps->fMaxFragmentSamplers = SkTMin<GrGLint>(kMaxSaneSamplers, maxSamplers); |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxSamplers); |
| shaderCaps->fMaxCombinedSamplers = SkTMin<GrGLint>(kMaxSaneSamplers, maxSamplers); |
| |
| if (kGL_GrGLStandard == standard) { |
| shaderCaps->fImageLoadStoreSupport = ctxInfo.version() >= GR_GL_VER(4, 2); |
| if (!shaderCaps->fImageLoadStoreSupport && |
| ctxInfo.hasExtension("GL_ARB_shader_image_load_store")) { |
| shaderCaps->fImageLoadStoreSupport = true; |
| shaderCaps->fImageLoadStoreExtensionString = "GL_ARB_shader_image_load_store"; |
| } |
| } else { |
| shaderCaps->fImageLoadStoreSupport = ctxInfo.version() >= GR_GL_VER(3, 1); |
| } |
| if (shaderCaps->fImageLoadStoreSupport) { |
| // Protect ourselves against tracking huge amounts of image state. |
| static constexpr int kMaxSaneImages = 4; |
| GrGLint maxUnits; |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_IMAGE_UNITS, &maxUnits); |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_VERTEX_IMAGE_UNIFORMS, |
| &shaderCaps->fMaxVertexImageStorages); |
| if (shaderCaps->fGeometryShaderSupport) { |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_GEOMETRY_IMAGE_UNIFORMS, |
| &shaderCaps->fMaxGeometryImageStorages); |
| } |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_FRAGMENT_IMAGE_UNIFORMS, |
| &shaderCaps->fMaxFragmentImageStorages); |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_COMBINED_IMAGE_UNIFORMS, |
| &shaderCaps->fMaxCombinedImageStorages); |
| // We use one unit for every image uniform |
| shaderCaps->fMaxCombinedImageStorages = SkTMin(SkTMin(shaderCaps->fMaxCombinedImageStorages, |
| maxUnits), kMaxSaneImages); |
| shaderCaps->fMaxVertexImageStorages = SkTMin(maxUnits, |
| shaderCaps->fMaxVertexImageStorages); |
| shaderCaps->fMaxGeometryImageStorages = SkTMin(maxUnits, |
| shaderCaps->fMaxGeometryImageStorages); |
| shaderCaps->fMaxFragmentImageStorages = SkTMin(maxUnits, |
| shaderCaps->fMaxFragmentImageStorages); |
| } |
| |
| // SGX and Mali GPUs that are based on a tiled-deferred architecture that have trouble with |
| // frequently changing VBOs. We've measured a performance increase using non-VBO vertex |
| // data for dynamic content on these GPUs. Perhaps we should read the renderer string and |
| // limit this decision to specific GPU families rather than basing it on the vendor alone. |
| if (!GR_GL_MUST_USE_VBO && |
| !fIsCoreProfile && |
| (kARM_GrGLVendor == ctxInfo.vendor() || |
| kImagination_GrGLVendor == ctxInfo.vendor() || |
| kQualcomm_GrGLVendor == ctxInfo.vendor())) { |
| fPreferClientSideDynamicBuffers = true; |
| } |
| |
| if (!contextOptions.fAvoidStencilBuffers) { |
| // To reduce surface area, if we avoid stencil buffers, we also disable MSAA. |
| this->initFSAASupport(contextOptions, ctxInfo, gli); |
| this->initStencilSupport(ctxInfo); |
| } |
| |
| // Setup blit framebuffer |
| if (kGL_GrGLStandard != ctxInfo.standard()) { |
| if (ctxInfo.version() >= GR_GL_VER(3, 0)) { |
| fBlitFramebufferFlags = kNoFormatConversionForMSAASrc_BlitFramebufferFlag | |
| kNoMSAADst_BlitFramebufferFlag | |
| kRectsMustMatchForMSAASrc_BlitFramebufferFlag; |
| } else if (ctxInfo.hasExtension("GL_CHROMIUM_framebuffer_multisample") || |
| ctxInfo.hasExtension("GL_ANGLE_framebuffer_blit")) { |
| // The CHROMIUM extension uses the ANGLE version of glBlitFramebuffer and includes its |
| // limitations. |
| fBlitFramebufferFlags = kNoScalingOrMirroring_BlitFramebufferFlag | |
| kResolveMustBeFull_BlitFrambufferFlag | |
| kNoMSAADst_BlitFramebufferFlag | |
| kNoFormatConversion_BlitFramebufferFlag | |
| kRectsMustMatchForMSAASrc_BlitFramebufferFlag; |
| } |
| } else { |
| if (fUsesMixedSamples || |
| ctxInfo.version() >= GR_GL_VER(3,0) || |
| ctxInfo.hasExtension("GL_ARB_framebuffer_object") || |
| ctxInfo.hasExtension("GL_EXT_framebuffer_blit")) { |
| fBlitFramebufferFlags = 0; |
| } |
| } |
| |
| this->initBlendEqationSupport(ctxInfo); |
| |
| if (kGL_GrGLStandard == standard) { |
| fMapBufferFlags = kCanMap_MapFlag; // we require VBO support and the desktop VBO |
| // extension includes glMapBuffer. |
| if (version >= GR_GL_VER(3, 0) || ctxInfo.hasExtension("GL_ARB_map_buffer_range")) { |
| fMapBufferFlags |= kSubset_MapFlag; |
| fMapBufferType = kMapBufferRange_MapBufferType; |
| } else { |
| fMapBufferType = kMapBuffer_MapBufferType; |
| } |
| } else { |
| // Unextended GLES2 doesn't have any buffer mapping. |
| fMapBufferFlags = kNone_MapBufferType; |
| if (ctxInfo.hasExtension("GL_CHROMIUM_map_sub")) { |
| fMapBufferFlags = kCanMap_MapFlag | kSubset_MapFlag; |
| fMapBufferType = kChromium_MapBufferType; |
| } else if (version >= GR_GL_VER(3, 0) || ctxInfo.hasExtension("GL_EXT_map_buffer_range")) { |
| fMapBufferFlags = kCanMap_MapFlag | kSubset_MapFlag; |
| fMapBufferType = kMapBufferRange_MapBufferType; |
| } else if (ctxInfo.hasExtension("GL_OES_mapbuffer")) { |
| fMapBufferFlags = kCanMap_MapFlag; |
| fMapBufferType = kMapBuffer_MapBufferType; |
| } |
| } |
| |
| // We found that the Galaxy J5 with an Adreno 306 running 6.0.1 has a bug where |
| // GL_INVALID_OPERATION thrown by glDrawArrays when using a buffer that was mapped. The same bug |
| // did not reproduce on a Nexus7 2013 with a 320 running Android M with driver 127.0. It's |
| // unclear whether this really affects a wide range of devices. |
| if (ctxInfo.renderer() == kAdreno3xx_GrGLRenderer && ctxInfo.driver() == kQualcomm_GrGLDriver && |
| ctxInfo.driverVersion() > GR_GL_DRIVER_VER(127, 0)) { |
| fMapBufferType = kNone_MapBufferType; |
| fMapBufferFlags = kNone_MapFlags; |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| if (version >= GR_GL_VER(3, 0) || ctxInfo.hasExtension("GL_ARB_pixel_buffer_object")) { |
| fTransferBufferType = kPBO_TransferBufferType; |
| } |
| } else { |
| if (version >= GR_GL_VER(3, 0) || ctxInfo.hasExtension("GL_NV_pixel_buffer_object")) { |
| fTransferBufferType = kPBO_TransferBufferType; |
| } else if (ctxInfo.hasExtension("GL_CHROMIUM_pixel_transfer_buffer_object")) { |
| fTransferBufferType = kChromium_TransferBufferType; |
| } |
| } |
| |
| // On many GPUs, map memory is very expensive, so we effectively disable it here by setting the |
| // threshold to the maximum unless the client gives us a hint that map memory is cheap. |
| if (fBufferMapThreshold < 0) { |
| #if 0 |
| // We think mapping on Chromium will be cheaper once we know ahead of time how much space |
| // we will use for all GrMeshDrawOps. Right now we might wind up mapping a large buffer and |
| // using a small subset. |
| fBufferMapThreshold = kChromium_GrGLDriver == ctxInfo.driver() ? 0 : SK_MaxS32; |
| #else |
| fBufferMapThreshold = SK_MaxS32; |
| #endif |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| fNPOTTextureTileSupport = true; |
| fMipMapSupport = true; |
| } else { |
| // Unextended ES2 supports NPOT textures with clamp_to_edge and non-mip filters only |
| // ES3 has no limitations. |
| fNPOTTextureTileSupport = ctxInfo.version() >= GR_GL_VER(3,0) || |
| ctxInfo.hasExtension("GL_OES_texture_npot"); |
| // ES2 supports MIP mapping for POT textures but our caps don't allow for limited MIP |
| // support. The OES extension or ES 3.0 allow for MIPS on NPOT textures. So, apparently, |
| // does the undocumented GL_IMG_texture_npot extension. This extension does not seem to |
| // to alllow arbitrary wrap modes, however. |
| fMipMapSupport = fNPOTTextureTileSupport || ctxInfo.hasExtension("GL_IMG_texture_npot"); |
| } |
| |
| // Using MIPs on this GPU seems to be a source of trouble. |
| if (kPowerVR54x_GrGLRenderer == ctxInfo.renderer()) { |
| fMipMapSupport = false; |
| } |
| |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_TEXTURE_SIZE, &fMaxTextureSize); |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_RENDERBUFFER_SIZE, &fMaxRenderTargetSize); |
| // Our render targets are always created with textures as the color |
| // attachment, hence this min: |
| fMaxRenderTargetSize = SkTMin(fMaxTextureSize, fMaxRenderTargetSize); |
| |
| fGpuTracingSupport = ctxInfo.hasExtension("GL_EXT_debug_marker"); |
| |
| // Disable scratch texture reuse on Mali and Adreno devices |
| fReuseScratchTextures = kARM_GrGLVendor != ctxInfo.vendor(); |
| |
| #if 0 |
| fReuseScratchBuffers = kARM_GrGLVendor != ctxInfo.vendor() && |
| kQualcomm_GrGLVendor != ctxInfo.vendor(); |
| #endif |
| |
| if (ctxInfo.hasExtension("GL_EXT_window_rectangles")) { |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_WINDOW_RECTANGLES, &fMaxWindowRectangles); |
| } |
| |
| if (kPowerVR54x_GrGLRenderer == ctxInfo.renderer() || |
| kPowerVRRogue_GrGLRenderer == ctxInfo.renderer() || |
| (kAdreno3xx_GrGLRenderer == ctxInfo.renderer() && |
| ctxInfo.driver() != kChromium_GrGLDriver)) { |
| fUseDrawInsteadOfClear = true; |
| } |
| |
| if (kAdreno4xx_GrGLRenderer == ctxInfo.renderer()) { |
| // This is known to be fixed sometime between driver 145.0 and 219.0 |
| if (ctxInfo.driver() == kQualcomm_GrGLDriver && |
| ctxInfo.driverVersion() <= GR_GL_DRIVER_VER(219, 0)) { |
| fUseDrawToClearStencilClip = true; |
| } |
| fDisallowTexSubImageForUnormConfigTexturesEverBoundToFBO = true; |
| } |
| |
| // This was reproduced on the following configurations: |
| // - A Galaxy J5 (Adreno 306) running Android 6 with driver 140.0 |
| // - A Nexus 7 2013 (Adreno 320) running Android 5 with driver 104.0 |
| // - A Nexus 7 2013 (Adreno 320) running Android 6 with driver 127.0 |
| // - A Nexus 5 (Adreno 330) running Android 6 with driver 127.0 |
| // and not produced on: |
| // - A Nexus 7 2013 (Adreno 320) running Android 4 with driver 53.0 |
| // The particular lines that get dropped from test images varies across different devices. |
| if (kAdreno3xx_GrGLRenderer == ctxInfo.renderer() && kQualcomm_GrGLDriver == ctxInfo.driver() && |
| ctxInfo.driverVersion() > GR_GL_DRIVER_VER(53, 0)) { |
| fRequiresCullFaceEnableDisableWhenDrawingLinesAfterNonLines = true; |
| } |
| |
| // Texture uploads sometimes seem to be ignored to textures bound to FBOS on Tegra3. |
| if (kTegra3_GrGLRenderer == ctxInfo.renderer()) { |
| fDisallowTexSubImageForUnormConfigTexturesEverBoundToFBO = true; |
| fUseDrawInsteadOfAllRenderTargetWrites = true; |
| } |
| |
| #ifdef SK_BUILD_FOR_WIN |
| // On ANGLE deferring flushes can lead to GPU starvation |
| fPreferVRAMUseOverFlushes = !isANGLE; |
| #endif |
| |
| if (kChromium_GrGLDriver == ctxInfo.driver()) { |
| fMustClearUploadedBufferData = true; |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| // ARB allows mixed size FBO attachments, EXT does not. |
| if (ctxInfo.version() >= GR_GL_VER(3, 0) || |
| ctxInfo.hasExtension("GL_ARB_framebuffer_object")) { |
| fOversizedStencilSupport = true; |
| } else { |
| SkASSERT(ctxInfo.hasExtension("GL_EXT_framebuffer_object")); |
| } |
| } else { |
| // ES 3.0 supports mixed size FBO attachments, 2.0 does not. |
| fOversizedStencilSupport = ctxInfo.version() >= GR_GL_VER(3, 0); |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| fDrawIndirectSupport = version >= GR_GL_VER(4,0) || |
| ctxInfo.hasExtension("GL_ARB_draw_indirect"); |
| fBaseInstanceSupport = version >= GR_GL_VER(4,2); |
| fMultiDrawIndirectSupport = version >= GR_GL_VER(4,3) || |
| (fDrawIndirectSupport && |
| !fBaseInstanceSupport && // The ARB extension has no base inst. |
| ctxInfo.hasExtension("GL_ARB_multi_draw_indirect")); |
| fDrawRangeElementsSupport = version >= GR_GL_VER(2,0); |
| } else { |
| fDrawIndirectSupport = version >= GR_GL_VER(3,1); |
| fMultiDrawIndirectSupport = fDrawIndirectSupport && |
| ctxInfo.hasExtension("GL_EXT_multi_draw_indirect"); |
| fBaseInstanceSupport = fDrawIndirectSupport && |
| ctxInfo.hasExtension("GL_EXT_base_instance"); |
| fDrawRangeElementsSupport = version >= GR_GL_VER(3,0); |
| } |
| |
| this->initShaderPrecisionTable(ctxInfo, gli, shaderCaps); |
| |
| if (contextOptions.fUseShaderSwizzling) { |
| fTextureSwizzleSupport = false; |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| if ((version >= GR_GL_VER(4, 0) || ctxInfo.hasExtension("GL_ARB_sample_shading")) && |
| ctxInfo.vendor() != kIntel_GrGLVendor) { |
| fSampleShadingSupport = true; |
| } |
| } else if (ctxInfo.hasExtension("GL_OES_sample_shading")) { |
| fSampleShadingSupport = true; |
| } |
| |
| // TODO: support CHROMIUM_sync_point and maybe KHR_fence_sync |
| if (kGL_GrGLStandard == standard) { |
| if (version >= GR_GL_VER(3, 2) || ctxInfo.hasExtension("GL_ARB_sync")) { |
| fFenceSyncSupport = true; |
| } |
| } else if (version >= GR_GL_VER(3, 0)) { |
| fFenceSyncSupport = true; |
| } |
| |
| // Safely moving textures between contexts requires fences. |
| fCrossContextTextureSupport = fFenceSyncSupport; |
| |
| // We support manual mip-map generation (via iterative downsampling draw calls). This fixes |
| // bugs on some cards/drivers that produce incorrect mip-maps for sRGB textures when using |
| // glGenerateMipmap. Our implementation requires mip-level sampling control. Additionally, |
| // it can be much slower (especially on mobile GPUs), so we opt-in only when necessary: |
| if (fMipMapLevelAndLodControlSupport && |
| (contextOptions.fDoManualMipmapping || |
| (kIntel_GrGLVendor == ctxInfo.vendor()) || |
| (kNVIDIA_GrGLDriver == ctxInfo.driver() && isMAC) || |
| (kATI_GrGLVendor == ctxInfo.vendor()))) { |
| fDoManualMipmapping = true; |
| } |
| |
| fSRGBDecodeDisableSupport = ctxInfo.hasExtension("GL_EXT_texture_sRGB_decode"); |
| fSRGBDecodeDisableAffectsMipmaps = fSRGBDecodeDisableSupport && |
| kChromium_GrGLDriver != ctxInfo.driver(); |
| |
| // See http://crbug.com/710443 |
| #ifdef SK_BUILD_FOR_MAC |
| if (kIntel6xxx_GrGLRenderer == ctxInfo.renderer()) { |
| fClearToBoundaryValuesIsBroken = true; |
| } |
| #endif |
| if (kQualcomm_GrGLVendor == ctxInfo.vendor()) { |
| fDrawArraysBaseVertexIsBroken = true; |
| } |
| |
| // Requires fTextureRedSupport, fTextureSwizzleSupport, msaa support, ES compatibility have |
| // already been detected. |
| this->initConfigTable(contextOptions, ctxInfo, gli, shaderCaps); |
| |
| this->applyOptionsOverrides(contextOptions); |
| shaderCaps->applyOptionsOverrides(contextOptions); |
| } |
| |
| const char* get_glsl_version_decl_string(GrGLStandard standard, GrGLSLGeneration generation, |
| bool isCoreProfile) { |
| switch (generation) { |
| case k110_GrGLSLGeneration: |
| if (kGLES_GrGLStandard == standard) { |
| // ES2s shader language is based on version 1.20 but is version |
| // 1.00 of the ES language. |
| return "#version 100\n"; |
| } else { |
| SkASSERT(kGL_GrGLStandard == standard); |
| return "#version 110\n"; |
| } |
| case k130_GrGLSLGeneration: |
| SkASSERT(kGL_GrGLStandard == standard); |
| return "#version 130\n"; |
| case k140_GrGLSLGeneration: |
| SkASSERT(kGL_GrGLStandard == standard); |
| return "#version 140\n"; |
| case k150_GrGLSLGeneration: |
| SkASSERT(kGL_GrGLStandard == standard); |
| if (isCoreProfile) { |
| return "#version 150\n"; |
| } else { |
| return "#version 150 compatibility\n"; |
| } |
| case k330_GrGLSLGeneration: |
| if (kGLES_GrGLStandard == standard) { |
| return "#version 300 es\n"; |
| } else { |
| SkASSERT(kGL_GrGLStandard == standard); |
| if (isCoreProfile) { |
| return "#version 330\n"; |
| } else { |
| return "#version 330 compatibility\n"; |
| } |
| } |
| case k400_GrGLSLGeneration: |
| SkASSERT(kGL_GrGLStandard == standard); |
| if (isCoreProfile) { |
| return "#version 400\n"; |
| } else { |
| return "#version 400 compatibility\n"; |
| } |
| case k420_GrGLSLGeneration: |
| SkASSERT(kGL_GrGLStandard == standard); |
| if (isCoreProfile) { |
| return "#version 420\n"; |
| } |
| else { |
| return "#version 420 compatibility\n"; |
| } |
| case k310es_GrGLSLGeneration: |
| SkASSERT(kGLES_GrGLStandard == standard); |
| return "#version 310 es\n"; |
| case k320es_GrGLSLGeneration: |
| SkASSERT(kGLES_GrGLStandard == standard); |
| return "#version 320 es\n"; |
| } |
| return "<no version>"; |
| } |
| |
| void GrGLCaps::initGLSL(const GrGLContextInfo& ctxInfo) { |
| GrGLStandard standard = ctxInfo.standard(); |
| GrGLVersion version = ctxInfo.version(); |
| |
| /************************************************************************** |
| * Caps specific to GrShaderCaps |
| **************************************************************************/ |
| |
| GrShaderCaps* shaderCaps = fShaderCaps.get(); |
| shaderCaps->fGLSLGeneration = ctxInfo.glslGeneration(); |
| if (kGLES_GrGLStandard == standard) { |
| if (ctxInfo.hasExtension("GL_EXT_shader_framebuffer_fetch")) { |
| shaderCaps->fFBFetchNeedsCustomOutput = (version >= GR_GL_VER(3, 0)); |
| shaderCaps->fFBFetchSupport = true; |
| shaderCaps->fFBFetchColorName = "gl_LastFragData[0]"; |
| shaderCaps->fFBFetchExtensionString = "GL_EXT_shader_framebuffer_fetch"; |
| } |
| else if (ctxInfo.hasExtension("GL_NV_shader_framebuffer_fetch")) { |
| // Actually, we haven't seen an ES3.0 device with this extension yet, so we don't know |
| shaderCaps->fFBFetchNeedsCustomOutput = false; |
| shaderCaps->fFBFetchSupport = true; |
| shaderCaps->fFBFetchColorName = "gl_LastFragData[0]"; |
| shaderCaps->fFBFetchExtensionString = "GL_NV_shader_framebuffer_fetch"; |
| } |
| else if (ctxInfo.hasExtension("GL_ARM_shader_framebuffer_fetch")) { |
| // The arm extension also requires an additional flag which we will set onResetContext |
| shaderCaps->fFBFetchNeedsCustomOutput = false; |
| shaderCaps->fFBFetchSupport = true; |
| shaderCaps->fFBFetchColorName = "gl_LastFragColorARM"; |
| shaderCaps->fFBFetchExtensionString = "GL_ARM_shader_framebuffer_fetch"; |
| } |
| shaderCaps->fUsesPrecisionModifiers = true; |
| } |
| |
| // Currently the extension is advertised but fb fetch is broken on 500 series Adrenos like the |
| // Galaxy S7. |
| // TODO: Once this is fixed we can update the check here to look at a driver version number too. |
| if (kAdreno5xx_GrGLRenderer == ctxInfo.renderer()) { |
| shaderCaps->fFBFetchSupport = false; |
| } |
| |
| shaderCaps->fBindlessTextureSupport = ctxInfo.hasExtension("GL_NV_bindless_texture"); |
| |
| if (kGL_GrGLStandard == standard) { |
| shaderCaps->fFlatInterpolationSupport = ctxInfo.glslGeneration() >= k130_GrGLSLGeneration; |
| } else { |
| shaderCaps->fFlatInterpolationSupport = |
| ctxInfo.glslGeneration() >= k330_GrGLSLGeneration; // This is the value for GLSL ES 3.0. |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| shaderCaps->fNoPerspectiveInterpolationSupport = |
| ctxInfo.glslGeneration() >= k130_GrGLSLGeneration; |
| } else { |
| if (ctxInfo.hasExtension("GL_NV_shader_noperspective_interpolation")) { |
| shaderCaps->fNoPerspectiveInterpolationSupport = true; |
| shaderCaps->fNoPerspectiveInterpolationExtensionString = |
| "GL_NV_shader_noperspective_interpolation"; |
| } |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| shaderCaps->fMultisampleInterpolationSupport = |
| ctxInfo.glslGeneration() >= k400_GrGLSLGeneration; |
| } else { |
| if (ctxInfo.glslGeneration() >= k320es_GrGLSLGeneration) { |
| shaderCaps->fMultisampleInterpolationSupport = true; |
| } else if (ctxInfo.hasExtension("GL_OES_shader_multisample_interpolation")) { |
| shaderCaps->fMultisampleInterpolationSupport = true; |
| shaderCaps->fMultisampleInterpolationExtensionString = |
| "GL_OES_shader_multisample_interpolation"; |
| } |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| shaderCaps->fSampleVariablesSupport = ctxInfo.glslGeneration() >= k400_GrGLSLGeneration; |
| } else { |
| if (ctxInfo.glslGeneration() >= k320es_GrGLSLGeneration) { |
| shaderCaps->fSampleVariablesSupport = true; |
| } else if (ctxInfo.hasExtension("GL_OES_sample_variables")) { |
| shaderCaps->fSampleVariablesSupport = true; |
| shaderCaps->fSampleVariablesExtensionString = "GL_OES_sample_variables"; |
| } |
| } |
| |
| if (shaderCaps->fSampleVariablesSupport && |
| ctxInfo.hasExtension("GL_NV_sample_mask_override_coverage")) { |
| // Pre-361 NVIDIA has a bug with NV_sample_mask_override_coverage. |
| shaderCaps->fSampleMaskOverrideCoverageSupport = |
| kNVIDIA_GrGLDriver != ctxInfo.driver() || |
| ctxInfo.driverVersion() >= GR_GL_DRIVER_VER(361,00); |
| } |
| |
| // Adreno GPUs have a tendency to drop tiles when there is a divide-by-zero in a shader |
| shaderCaps->fDropsTileOnZeroDivide = kQualcomm_GrGLVendor == ctxInfo.vendor(); |
| |
| // On the NexusS and GalaxyNexus, the use of 'any' causes the compilation error "Calls to any |
| // function that may require a gradient calculation inside a conditional block may return |
| // undefined results". This appears to be an issue with the 'any' call since even the simple |
| // "result=black; if (any()) result=white;" code fails to compile. This issue comes into play |
| // from our GrTextureDomain processor. |
| shaderCaps->fCanUseAnyFunctionInShader = kImagination_GrGLVendor != ctxInfo.vendor(); |
| |
| shaderCaps->fVersionDeclString = get_glsl_version_decl_string(standard, |
| shaderCaps->fGLSLGeneration, |
| fIsCoreProfile); |
| |
| if (kGLES_GrGLStandard == standard && k110_GrGLSLGeneration == shaderCaps->fGLSLGeneration) { |
| shaderCaps->fShaderDerivativeExtensionString = "GL_OES_standard_derivatives"; |
| } |
| |
| // Frag Coords Convention support is not part of ES |
| // Known issue on at least some Intel platforms: |
| // http://code.google.com/p/skia/issues/detail?id=946 |
| if (kIntel_GrGLVendor != ctxInfo.vendor() && |
| kGLES_GrGLStandard != standard && |
| (ctxInfo.glslGeneration() >= k150_GrGLSLGeneration || |
| ctxInfo.hasExtension("GL_ARB_fragment_coord_conventions"))) { |
| shaderCaps->fFragCoordConventionsExtensionString = "GL_ARB_fragment_coord_conventions"; |
| } |
| |
| if (kGLES_GrGLStandard == standard) { |
| shaderCaps->fSecondaryOutputExtensionString = "GL_EXT_blend_func_extended"; |
| } |
| |
| if (ctxInfo.hasExtension("GL_OES_EGL_image_external")) { |
| if (ctxInfo.glslGeneration() == k110_GrGLSLGeneration) { |
| shaderCaps->fExternalTextureSupport = true; |
| } else if (ctxInfo.hasExtension("GL_OES_EGL_image_external_essl3") || |
| ctxInfo.hasExtension("OES_EGL_image_external_essl3")) { |
| // At least one driver has been found that has this extension without the "GL_" prefix. |
| shaderCaps->fExternalTextureSupport = true; |
| } |
| } |
| |
| if (shaderCaps->fExternalTextureSupport) { |
| if (ctxInfo.glslGeneration() == k110_GrGLSLGeneration) { |
| shaderCaps->fExternalTextureExtensionString = "GL_OES_EGL_image_external"; |
| } else { |
| shaderCaps->fExternalTextureExtensionString = "GL_OES_EGL_image_external_essl3"; |
| } |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| shaderCaps->fTexelFetchSupport = ctxInfo.glslGeneration() >= k130_GrGLSLGeneration; |
| } else { |
| shaderCaps->fTexelFetchSupport = |
| ctxInfo.glslGeneration() >= k330_GrGLSLGeneration; // We use this value for GLSL ES 3.0. |
| } |
| |
| if (shaderCaps->fTexelFetchSupport) { |
| if (kGL_GrGLStandard == standard) { |
| shaderCaps->fTexelBufferSupport = ctxInfo.version() >= GR_GL_VER(3, 1) && |
| ctxInfo.glslGeneration() >= k330_GrGLSLGeneration; |
| } else { |
| if (ctxInfo.version() >= GR_GL_VER(3, 2) && |
| ctxInfo.glslGeneration() >= k320es_GrGLSLGeneration) { |
| shaderCaps->fTexelBufferSupport = true; |
| } else if (ctxInfo.hasExtension("GL_OES_texture_buffer")) { |
| shaderCaps->fTexelBufferSupport = true; |
| shaderCaps->fTexelBufferExtensionString = "GL_OES_texture_buffer"; |
| } else if (ctxInfo.hasExtension("GL_EXT_texture_buffer")) { |
| shaderCaps->fTexelBufferSupport = true; |
| shaderCaps->fTexelBufferExtensionString = "GL_EXT_texture_buffer"; |
| } |
| } |
| } |
| |
| if (kGL_GrGLStandard == standard) { |
| shaderCaps->fVertexIDSupport = true; |
| } else { |
| // Desktop GLSL 3.30 == ES GLSL 3.00. |
| shaderCaps->fVertexIDSupport = ctxInfo.glslGeneration() >= k330_GrGLSLGeneration; |
| } |
| |
| // The Tegra3 compiler will sometimes never return if we have min(abs(x), 1.0), so we must do |
| // the abs first in a separate expression. |
| if (kTegra3_GrGLRenderer == ctxInfo.renderer()) { |
| shaderCaps->fCanUseMinAndAbsTogether = false; |
| } |
| |
| // On Intel GPU there is an issue where it reads the second argument to atan "- %s.x" as an int |
| // thus must us -1.0 * %s.x to work correctly |
| if (kIntel_GrGLVendor == ctxInfo.vendor()) { |
| shaderCaps->fMustForceNegatedAtanParamToFloat = true; |
| } |
| |
| // On Adreno devices with framebuffer fetch support, there is a bug where they always return |
| // the original dst color when reading the outColor even after being written to. By using a |
| // local outColor we can work around this bug. |
| if (shaderCaps->fFBFetchSupport && kQualcomm_GrGLVendor == ctxInfo.vendor()) { |
| shaderCaps->fRequiresLocalOutputColorForFBFetch = true; |
| } |
| |
| #ifdef SK_BUILD_FOR_MAC |
| // On at least some MacBooks, geometry shaders fall apart if we use more than one invocation. To |
| // work around this, we always use a single invocation and wrap the shader in a loop. The long- |
| // term plan for this WAR is for it to eventually be baked into SkSL. |
| shaderCaps->fMustImplementGSInvocationsWithLoop = true; |
| #endif |
| |
| // Newer Mali GPUs do incorrect static analysis in specific situations: If there is uniform |
| // color, and that uniform contains an opaque color, and the output of the shader is only based |
| // on that uniform plus soemthing un-trackable (like a texture read), the compiler will deduce |
| // that the shader always outputs opaque values. In that case, it appears to remove the shader |
| // based blending code it normally injects, turning SrcOver into Src. To fix this, we always |
| // insert an extra bit of math on the uniform that confuses the compiler just enough... |
| if (kMaliT_GrGLRenderer == ctxInfo.renderer()) { |
| shaderCaps->fMustObfuscateUniformColor = true; |
| } |
| } |
| |
| bool GrGLCaps::hasPathRenderingSupport(const GrGLContextInfo& ctxInfo, const GrGLInterface* gli) { |
| bool hasChromiumPathRendering = ctxInfo.hasExtension("GL_CHROMIUM_path_rendering"); |
| |
| if (!(ctxInfo.hasExtension("GL_NV_path_rendering") || hasChromiumPathRendering)) { |
| return false; |
| } |
| |
| if (kGL_GrGLStandard == ctxInfo.standard()) { |
| if (ctxInfo.version() < GR_GL_VER(4, 3) && |
| !ctxInfo.hasExtension("GL_ARB_program_interface_query")) { |
| return false; |
| } |
| } else { |
| if (!hasChromiumPathRendering && |
| ctxInfo.version() < GR_GL_VER(3, 1)) { |
| return false; |
| } |
| } |
| // We only support v1.3+ of GL_NV_path_rendering which allows us to |
| // set individual fragment inputs with ProgramPathFragmentInputGen. The API |
| // additions are detected by checking the existence of the function. |
| // We also use *Then* functions that not all drivers might have. Check |
| // them for consistency. |
| if (!gli->fFunctions.fStencilThenCoverFillPath || |
| !gli->fFunctions.fStencilThenCoverStrokePath || |
| !gli->fFunctions.fStencilThenCoverFillPathInstanced || |
| !gli->fFunctions.fStencilThenCoverStrokePathInstanced || |
| !gli->fFunctions.fProgramPathFragmentInputGen) { |
| return false; |
| } |
| return true; |
| } |
| |
| bool GrGLCaps::readPixelsSupported(GrPixelConfig surfaceConfig, |
| GrPixelConfig readConfig, |
| std::function<void (GrGLenum, GrGLint*)> getIntegerv, |
| std::function<bool ()> bindRenderTarget, |
| std::function<void ()> unbindRenderTarget) const { |
| // If it's not possible to even have a color attachment of surfaceConfig then read pixels is |
| // not supported regardless of readConfig. |
| if (!this->canConfigBeFBOColorAttachment(surfaceConfig)) { |
| return false; |
| } |
| |
| if (GrPixelConfigIsSint(surfaceConfig) != GrPixelConfigIsSint(readConfig)) { |
| return false; |
| } |
| |
| GrGLenum readFormat; |
| GrGLenum readType; |
| if (!this->getReadPixelsFormat(surfaceConfig, readConfig, &readFormat, &readType)) { |
| return false; |
| } |
| |
| if (kGL_GrGLStandard == fStandard) { |
| // Some OpenGL implementations allow GL_ALPHA as a format to glReadPixels. However, |
| // the manual (https://www.opengl.org/sdk/docs/man/) says only these formats are allowed: |
| // GL_STENCIL_INDEX, GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL, GL_RED, GL_GREEN, GL_BLUE, |
| // GL_RGB, GL_BGR, GL_RGBA, and GL_BGRA. We check for the subset that we would use. |
| // The manual does not seem to fully match the spec as the spec allows integer formats |
| // when the bound color buffer is an integer buffer. It doesn't specify which integer |
| // formats are allowed, so perhaps all of them are. We only use GL_RGBA_INTEGER currently. |
| if (readFormat != GR_GL_RED && readFormat != GR_GL_RG && readFormat != GR_GL_RGB && |
| readFormat != GR_GL_RGBA && readFormat != GR_GL_BGRA && |
| readFormat != GR_GL_RGBA_INTEGER) { |
| return false; |
| } |
| // There is also a set of allowed types, but all the types we use are in the set: |
| // GL_UNSIGNED_BYTE, GL_BYTE, GL_UNSIGNED_SHORT, GL_SHORT, GL_UNSIGNED_INT, GL_INT, |
| // GL_HALF_FLOAT, GL_FLOAT, GL_UNSIGNED_BYTE_3_3_2, GL_UNSIGNED_BYTE_2_3_3_REV, |
| // GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_SHORT_5_6_5_REV, GL_UNSIGNED_SHORT_4_4_4_4, |
| // GL_UNSIGNED_SHORT_4_4_4_4_REV, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_SHORT_1_5_5_5_REV, |
| // GL_UNSIGNED_INT_8_8_8_8, GL_UNSIGNED_INT_8_8_8_8_REV,GL_UNSIGNED_INT_10_10_10_2, |
| // GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_INT_10F_11F_11F_REV, |
| // GL_UNSIGNED_INT_5_9_9_9_REV, or GL_FLOAT_32_UNSIGNED_INT_24_8_REV. |
| return true; |
| } |
| |
| // See Section 16.1.2 in the ES 3.2 specification. |
| switch (fConfigTable[surfaceConfig].fFormatType) { |
| case kNormalizedFixedPoint_FormatType: |
| if (GR_GL_RGBA == readFormat && GR_GL_UNSIGNED_BYTE == readType) { |
| return true; |
| } |
| break; |
| case kInteger_FormatType: |
| if (GR_GL_RGBA_INTEGER == readFormat && GR_GL_INT == readType) { |
| return true; |
| } |
| break; |
| case kFloat_FormatType: |
| if (GR_GL_RGBA == readFormat && GR_GL_FLOAT == readType) { |
| return true; |
| } |
| break; |
| } |
| |
| if (0 == fConfigTable[surfaceConfig].fSecondReadPixelsFormat.fFormat) { |
| ReadPixelsFormat* rpFormat = |
| const_cast<ReadPixelsFormat*>(&fConfigTable[surfaceConfig].fSecondReadPixelsFormat); |
| GrGLint format = 0, type = 0; |
| if (!bindRenderTarget()) { |
| return false; |
| } |
| getIntegerv(GR_GL_IMPLEMENTATION_COLOR_READ_FORMAT, &format); |
| getIntegerv(GR_GL_IMPLEMENTATION_COLOR_READ_TYPE, &type); |
| rpFormat->fFormat = format; |
| rpFormat->fType = type; |
| unbindRenderTarget(); |
| } |
| |
| return fConfigTable[surfaceConfig].fSecondReadPixelsFormat.fFormat == readFormat && |
| fConfigTable[surfaceConfig].fSecondReadPixelsFormat.fType == readType; |
| } |
| |
| void GrGLCaps::initFSAASupport(const GrContextOptions& contextOptions, const GrGLContextInfo& ctxInfo, |
| const GrGLInterface* gli) { |
| // We need dual source blending and the ability to disable multisample in order to support mixed |
| // samples in every corner case. We only use mixed samples if the stencil-and-cover path |
| // renderer is available and enabled; no other path renderers support this feature. |
| if (fMultisampleDisableSupport && |
| this->shaderCaps()->dualSourceBlendingSupport() && |
| this->shaderCaps()->pathRenderingSupport() && |
| (contextOptions.fGpuPathRenderers & GrContextOptions::GpuPathRenderers::kStencilAndCover)) { |
| fUsesMixedSamples = ctxInfo.hasExtension("GL_NV_framebuffer_mixed_samples") || |
| ctxInfo.hasExtension("GL_CHROMIUM_framebuffer_mixed_samples"); |
| // Workaround NVIDIA bug related to glInvalidateFramebuffer and mixed samples. |
| if (fUsesMixedSamples && (kNVIDIA_GrGLDriver == ctxInfo.driver() || |
| kChromium_GrGLDriver == ctxInfo.driver())) { |
| fDiscardRenderTargetSupport = false; |
| fInvalidateFBType = kNone_InvalidateFBType; |
| } |
| } |
| |
| if (kGL_GrGLStandard != ctxInfo.standard()) { |
| // We prefer the EXT/IMG extension over ES3 MSAA because we've observed |
| // ES3 driver bugs on at least one device with a tiled GPU (N10). |
| if (ctxInfo.hasExtension("GL_EXT_multisampled_render_to_texture")) { |
| fMSFBOType = kES_EXT_MsToTexture_MSFBOType; |
| } else if (ctxInfo.hasExtension("GL_IMG_multisampled_render_to_texture")) { |
| fMSFBOType = kES_IMG_MsToTexture_MSFBOType; |
| } else if (fUsesMixedSamples) { |
| fMSFBOType = kMixedSamples_MSFBOType; |
| } else if (ctxInfo.version() >= GR_GL_VER(3,0)) { |
| fMSFBOType = kStandard_MSFBOType; |
| fAlpha8IsRenderable = true; |
| } else if (ctxInfo.hasExtension("GL_CHROMIUM_framebuffer_multisample")) { |
| fMSFBOType = kStandard_MSFBOType; |
| } else if (ctxInfo.hasExtension("GL_ANGLE_framebuffer_multisample")) { |
| fMSFBOType = kStandard_MSFBOType; |
| } else if (ctxInfo.hasExtension("GL_APPLE_framebuffer_multisample")) { |
| fMSFBOType = kES_Apple_MSFBOType; |
| } |
| } else { |
| if (fUsesMixedSamples) { |
| fMSFBOType = kMixedSamples_MSFBOType; |
| } else if (ctxInfo.version() >= GR_GL_VER(3,0) || |
| ctxInfo.hasExtension("GL_ARB_framebuffer_object")) { |
| |
| fMSFBOType = kStandard_MSFBOType; |
| if (!fIsCoreProfile && ctxInfo.renderer() != kOSMesa_GrGLRenderer) { |
| // Core profile removes ALPHA8 support. |
| // OpenGL 3.0+ (and GL_ARB_framebuffer_object) supports ALPHA8 as renderable. |
| // However, osmesa fails if it is used even when GL_ARB_framebuffer_object is |
| // present. |
| fAlpha8IsRenderable = true; |
| } |
| } else if (ctxInfo.hasExtension("GL_EXT_framebuffer_multisample") && |
| ctxInfo.hasExtension("GL_EXT_framebuffer_blit")) { |
| fMSFBOType = kStandard_MSFBOType; |
| } |
| } |
| |
| // We disable MSAA across the board for Intel GPUs |
| if (kIntel_GrGLVendor == ctxInfo.vendor()) { |
| fMSFBOType = kNone_MSFBOType; |
| } |
| |
| if (GrGLCaps::kES_IMG_MsToTexture_MSFBOType == fMSFBOType) { |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_SAMPLES_IMG, &fMaxStencilSampleCount); |
| } else if (GrGLCaps::kNone_MSFBOType != fMSFBOType) { |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_SAMPLES, &fMaxStencilSampleCount); |
| } |
| // We only have a use for raster multisample if there is coverage modulation from mixed samples. |
| if (fUsesMixedSamples && ctxInfo.hasExtension("GL_EXT_raster_multisample")) { |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_RASTER_SAMPLES, &fMaxRasterSamples); |
| // This is to guard against platforms that may not support as many samples for |
| // glRasterSamples as they do for framebuffers. |
| fMaxStencilSampleCount = SkTMin(fMaxStencilSampleCount, fMaxRasterSamples); |
| } |
| fMaxColorSampleCount = fMaxStencilSampleCount; |
| } |
| |
| void GrGLCaps::initBlendEqationSupport(const GrGLContextInfo& ctxInfo) { |
| GrShaderCaps* shaderCaps = static_cast<GrShaderCaps*>(fShaderCaps.get()); |
| |
| // Disabling advanced blend on various platforms with major known issues. We also block Chrome |
| // for now until its own blacklists can be updated. |
| if (kAdreno4xx_GrGLRenderer == ctxInfo.renderer() || |
| kAdreno5xx_GrGLRenderer == ctxInfo.renderer() || |
| kIntel_GrGLDriver == ctxInfo.driver() || |
| kChromium_GrGLDriver == ctxInfo.driver()) { |
| return; |
| } |
| |
| if (ctxInfo.hasExtension("GL_NV_blend_equation_advanced_coherent")) { |
| fBlendEquationSupport = kAdvancedCoherent_BlendEquationSupport; |
| shaderCaps->fAdvBlendEqInteraction = GrShaderCaps::kAutomatic_AdvBlendEqInteraction; |
| } else if (ctxInfo.hasExtension("GL_KHR_blend_equation_advanced_coherent")) { |
| fBlendEquationSupport = kAdvancedCoherent_BlendEquationSupport; |
| shaderCaps->fAdvBlendEqInteraction = GrShaderCaps::kGeneralEnable_AdvBlendEqInteraction; |
| } else if (kNVIDIA_GrGLDriver == ctxInfo.driver() && |
| ctxInfo.driverVersion() < GR_GL_DRIVER_VER(337,00)) { |
| // Non-coherent advanced blend has an issue on NVIDIA pre 337.00. |
| return; |
| } else if (ctxInfo.hasExtension("GL_NV_blend_equation_advanced")) { |
| fBlendEquationSupport = kAdvanced_BlendEquationSupport; |
| shaderCaps->fAdvBlendEqInteraction = GrShaderCaps::kAutomatic_AdvBlendEqInteraction; |
| } else if (ctxInfo.hasExtension("GL_KHR_blend_equation_advanced")) { |
| fBlendEquationSupport = kAdvanced_BlendEquationSupport; |
| shaderCaps->fAdvBlendEqInteraction = GrShaderCaps::kGeneralEnable_AdvBlendEqInteraction; |
| // TODO: Use kSpecificEnables_AdvBlendEqInteraction if "blend_support_all_equations" is |
| // slow on a particular platform. |
| } else { |
| return; // No advanced blend support. |
| } |
| |
| SkASSERT(this->advancedBlendEquationSupport()); |
| |
| if (kNVIDIA_GrGLDriver == ctxInfo.driver() && |
| ctxInfo.driverVersion() < GR_GL_DRIVER_VER(355,00)) { |
| // Blacklist color-dodge and color-burn on pre-355.00 NVIDIA. |
| fAdvBlendEqBlacklist |= (1 << kColorDodge_GrBlendEquation) | |
| (1 << kColorBurn_GrBlendEquation); |
| } |
| if (kARM_GrGLVendor == ctxInfo.vendor()) { |
| // Blacklist color-burn on ARM until the fix is released. |
| fAdvBlendEqBlacklist |= (1 << kColorBurn_GrBlendEquation); |
| } |
| } |
| |
| namespace { |
| const GrGLuint kUnknownBitCount = GrGLStencilAttachment::kUnknownBitCount; |
| } |
| |
| void GrGLCaps::initStencilSupport(const GrGLContextInfo& ctxInfo) { |
| |
| // Build up list of legal stencil formats (though perhaps not supported on |
| // the particular gpu/driver) from most preferred to least. |
| |
| // these consts are in order of most preferred to least preferred |
| // we don't bother with GL_STENCIL_INDEX1 or GL_DEPTH32F_STENCIL8 |
| |
| static const StencilFormat |
| // internal Format stencil bits total bits packed? |
| gS8 = {GR_GL_STENCIL_INDEX8, 8, 8, false}, |
| gS16 = {GR_GL_STENCIL_INDEX16, 16, 16, false}, |
| gD24S8 = {GR_GL_DEPTH24_STENCIL8, 8, 32, true }, |
| gS4 = {GR_GL_STENCIL_INDEX4, 4, 4, false}, |
| // gS = {GR_GL_STENCIL_INDEX, kUnknownBitCount, kUnknownBitCount, false}, |
| gDS = {GR_GL_DEPTH_STENCIL, kUnknownBitCount, kUnknownBitCount, true }; |
| |
| if (kGL_GrGLStandard == ctxInfo.standard()) { |
| bool supportsPackedDS = |
| ctxInfo.version() >= GR_GL_VER(3,0) || |
| ctxInfo.hasExtension("GL_EXT_packed_depth_stencil") || |
| ctxInfo.hasExtension("GL_ARB_framebuffer_object"); |
| |
| // S1 thru S16 formats are in GL 3.0+, EXT_FBO, and ARB_FBO since we |
| // require FBO support we can expect these are legal formats and don't |
| // check. These also all support the unsized GL_STENCIL_INDEX. |
| fStencilFormats.push_back() = gS8; |
| fStencilFormats.push_back() = gS16; |
| if (supportsPackedDS) { |
| fStencilFormats.push_back() = gD24S8; |
| } |
| fStencilFormats.push_back() = gS4; |
| if (supportsPackedDS) { |
| fStencilFormats.push_back() = gDS; |
| } |
| } else { |
| // ES2 has STENCIL_INDEX8 without extensions but requires extensions |
| // for other formats. |
| // ES doesn't support using the unsized format. |
| |
| fStencilFormats.push_back() = gS8; |
| //fStencilFormats.push_back() = gS16; |
| if (ctxInfo.version() >= GR_GL_VER(3,0) || |
| ctxInfo.hasExtension("GL_OES_packed_depth_stencil")) { |
| fStencilFormats.push_back() = gD24S8; |
| } |
| if (ctxInfo.hasExtension("GL_OES_stencil4")) { |
| fStencilFormats.push_back() = gS4; |
| } |
| } |
| } |
| |
| SkString GrGLCaps::dump() const { |
| |
| SkString r = INHERITED::dump(); |
| |
| r.appendf("--- GL-Specific ---\n"); |
| for (int i = 0; i < fStencilFormats.count(); ++i) { |
| r.appendf("Stencil Format %d, stencil bits: %02d, total bits: %02d\n", |
| i, |
| fStencilFormats[i].fStencilBits, |
| fStencilFormats[i].fTotalBits); |
| } |
| |
| static const char* kMSFBOExtStr[] = { |
| "None", |
| "Standard", |
| "Apple", |
| "IMG MS To Texture", |
| "EXT MS To Texture", |
| "MixedSamples", |
| }; |
| GR_STATIC_ASSERT(0 == kNone_MSFBOType); |
| GR_STATIC_ASSERT(1 == kStandard_MSFBOType); |
| GR_STATIC_ASSERT(2 == kES_Apple_MSFBOType); |
| GR_STATIC_ASSERT(3 == kES_IMG_MsToTexture_MSFBOType); |
| GR_STATIC_ASSERT(4 == kES_EXT_MsToTexture_MSFBOType); |
| GR_STATIC_ASSERT(5 == kMixedSamples_MSFBOType); |
| GR_STATIC_ASSERT(SK_ARRAY_COUNT(kMSFBOExtStr) == kLast_MSFBOType + 1); |
| |
| static const char* kInvalidateFBTypeStr[] = { |
| "None", |
| "Discard", |
| "Invalidate", |
| }; |
| GR_STATIC_ASSERT(0 == kNone_InvalidateFBType); |
| GR_STATIC_ASSERT(1 == kDiscard_InvalidateFBType); |
| GR_STATIC_ASSERT(2 == kInvalidate_InvalidateFBType); |
| GR_STATIC_ASSERT(SK_ARRAY_COUNT(kInvalidateFBTypeStr) == kLast_InvalidateFBType + 1); |
| |
| static const char* kMapBufferTypeStr[] = { |
| "None", |
| "MapBuffer", |
| "MapBufferRange", |
| "Chromium", |
| }; |
| GR_STATIC_ASSERT(0 == kNone_MapBufferType); |
| GR_STATIC_ASSERT(1 == kMapBuffer_MapBufferType); |
| GR_STATIC_ASSERT(2 == kMapBufferRange_MapBufferType); |
| GR_STATIC_ASSERT(3 == kChromium_MapBufferType); |
| GR_STATIC_ASSERT(SK_ARRAY_COUNT(kMapBufferTypeStr) == kLast_MapBufferType + 1); |
| |
| r.appendf("Core Profile: %s\n", (fIsCoreProfile ? "YES" : "NO")); |
| r.appendf("MSAA Type: %s\n", kMSFBOExtStr[fMSFBOType]); |
| r.appendf("Invalidate FB Type: %s\n", kInvalidateFBTypeStr[fInvalidateFBType]); |
| r.appendf("Map Buffer Type: %s\n", kMapBufferTypeStr[fMapBufferType]); |
| r.appendf("Max FS Uniform Vectors: %d\n", fMaxFragmentUniformVectors); |
| r.appendf("Unpack Row length support: %s\n", (fUnpackRowLengthSupport ? "YES": "NO")); |
| r.appendf("Unpack Flip Y support: %s\n", (fUnpackFlipYSupport ? "YES": "NO")); |
| r.appendf("Pack Row length support: %s\n", (fPackRowLengthSupport ? "YES": "NO")); |
| r.appendf("Pack Flip Y support: %s\n", (fPackFlipYSupport ? "YES": "NO")); |
| |
| r.appendf("Texture Usage support: %s\n", (fTextureUsageSupport ? "YES": "NO")); |
| r.appendf("GL_R support: %s\n", (fTextureRedSupport ? "YES": "NO")); |
| r.appendf("Alpha8 is renderable: %s\n", (fAlpha8IsRenderable ? "YES" : "NO")); |
| r.appendf("GL_ARB_imaging support: %s\n", (fImagingSupport ? "YES": "NO")); |
| r.appendf("Vertex array object support: %s\n", (fVertexArrayObjectSupport ? "YES": "NO")); |
| r.appendf("Direct state access support: %s\n", (fDirectStateAccessSupport ? "YES": "NO")); |
| r.appendf("Debug support: %s\n", (fDebugSupport ? "YES": "NO")); |
| r.appendf("Draw indirect support: %s\n", (fDrawIndirectSupport ? "YES" : "NO")); |
| r.appendf("Multi draw indirect support: %s\n", (fMultiDrawIndirectSupport ? "YES" : "NO")); |
| r.appendf("Base instance support: %s\n", (fBaseInstanceSupport ? "YES" : "NO")); |
| r.appendf("RGBA 8888 pixel ops are slow: %s\n", (fRGBA8888PixelsOpsAreSlow ? "YES" : "NO")); |
| r.appendf("Partial FBO read is slow: %s\n", (fPartialFBOReadIsSlow ? "YES" : "NO")); |
| r.appendf("Bind uniform location support: %s\n", (fBindUniformLocationSupport ? "YES" : "NO")); |
| r.appendf("Rectangle texture support: %s\n", (fRectangleTextureSupport? "YES" : "NO")); |
| r.appendf("Texture swizzle support: %s\n", (fTextureSwizzleSupport ? "YES" : "NO")); |
| r.appendf("BGRA to RGBA readback conversions are slow: %s\n", |
| (fRGBAToBGRAReadbackConversionsAreSlow ? "YES" : "NO")); |
| r.appendf("Intermediate texture for partial updates of unorm textures ever bound to FBOs: %s\n", |
| fDisallowTexSubImageForUnormConfigTexturesEverBoundToFBO ? "YES" : "NO"); |
| r.appendf("Intermediate texture for all updates of textures bound to FBOs: %s\n", |
| fUseDrawInsteadOfAllRenderTargetWrites ? "YES" : "NO"); |
| |
| r.append("Configs\n-------\n"); |
| for (int i = 0; i < kGrPixelConfigCnt; ++i) { |
| r.appendf(" cfg: %d flags: 0x%04x, b_internal: 0x%08x s_internal: 0x%08x, e_format: " |
| "0x%08x, e_format_teximage: 0x%08x, e_type: 0x%08x, i_for_teximage: 0x%08x, " |
| "i_for_renderbuffer: 0x%08x\n", |
| i, |
| fConfigTable[i].fFlags, |
| fConfigTable[i].fFormats.fBaseInternalFormat, |
| fConfigTable[i].fFormats.fSizedInternalFormat, |
| fConfigTable[i].fFormats.fExternalFormat[kOther_ExternalFormatUsage], |
| fConfigTable[i].fFormats.fExternalFormat[kTexImage_ExternalFormatUsage], |
| fConfigTable[i].fFormats.fExternalType, |
| fConfigTable[i].fFormats.fInternalFormatTexImage, |
| fConfigTable[i].fFormats.fInternalFormatRenderbuffer); |
| } |
| |
| return r; |
| } |
| |
| static GrGLenum precision_to_gl_float_type(GrSLPrecision p) { |
| switch (p) { |
| case kLow_GrSLPrecision: |
| return GR_GL_LOW_FLOAT; |
| case kMedium_GrSLPrecision: |
| return GR_GL_MEDIUM_FLOAT; |
| case kHigh_GrSLPrecision: |
| return GR_GL_HIGH_FLOAT; |
| default: |
| SkFAIL("Unexpected precision type."); |
| return -1; |
| } |
| } |
| |
| static GrGLenum shader_type_to_gl_shader(GrShaderType type) { |
| switch (type) { |
| case kVertex_GrShaderType: |
| return GR_GL_VERTEX_SHADER; |
| case kGeometry_GrShaderType: |
| return GR_GL_GEOMETRY_SHADER; |
| case kFragment_GrShaderType: |
| return GR_GL_FRAGMENT_SHADER; |
| } |
| SkFAIL("Unknown shader type."); |
| return -1; |
| } |
| |
| void GrGLCaps::initShaderPrecisionTable(const GrGLContextInfo& ctxInfo, |
| const GrGLInterface* intf, |
| GrShaderCaps* shaderCaps) { |
| if (kGLES_GrGLStandard == ctxInfo.standard() || ctxInfo.version() >= GR_GL_VER(4, 1) || |
| ctxInfo.hasExtension("GL_ARB_ES2_compatibility")) { |
| for (int s = 0; s < kGrShaderTypeCount; ++s) { |
| if (kGeometry_GrShaderType != s) { |
| GrShaderType shaderType = static_cast<GrShaderType>(s); |
| GrGLenum glShader = shader_type_to_gl_shader(shaderType); |
| GrShaderCaps::PrecisionInfo* first = nullptr; |
| shaderCaps->fShaderPrecisionVaries = false; |
| for (int p = 0; p < kGrSLPrecisionCount; ++p) { |
| GrSLPrecision precision = static_cast<GrSLPrecision>(p); |
| GrGLenum glPrecision = precision_to_gl_float_type(precision); |
| GrGLint range[2]; |
| GrGLint bits; |
| GR_GL_GetShaderPrecisionFormat(intf, glShader, glPrecision, range, &bits); |
| if (bits) { |
| shaderCaps->fFloatPrecisions[s][p].fLogRangeLow = range[0]; |
| shaderCaps->fFloatPrecisions[s][p].fLogRangeHigh = range[1]; |
| shaderCaps->fFloatPrecisions[s][p].fBits = bits; |
| if (!first) { |
| first = &shaderCaps->fFloatPrecisions[s][p]; |
| } |
| else if (!shaderCaps->fShaderPrecisionVaries) { |
| shaderCaps->fShaderPrecisionVaries = |
| (*first != shaderCaps->fFloatPrecisions[s][p]); |
| } |
| } |
| } |
| } |
| } |
| } |
| else { |
| // We're on a desktop GL that doesn't have precision info. Assume they're all 32bit float. |
| shaderCaps->fShaderPrecisionVaries = false; |
| for (int s = 0; s < kGrShaderTypeCount; ++s) { |
| if (kGeometry_GrShaderType != s) { |
| for (int p = 0; p < kGrSLPrecisionCount; ++p) { |
| shaderCaps->fFloatPrecisions[s][p].fLogRangeLow = 127; |
| shaderCaps->fFloatPrecisions[s][p].fLogRangeHigh = 127; |
| shaderCaps->fFloatPrecisions[s][p].fBits = 23; |
| } |
| } |
| } |
| } |
| // GetShaderPrecisionFormat doesn't accept GL_GEOMETRY_SHADER as a shader type. Assume they're |
| // the same as the vertex shader. Only fragment shaders were ever allowed to omit support for |
| // highp. GS was added after GetShaderPrecisionFormat was added to the list of features that |
| // are recommended against. |
| if (shaderCaps->fGeometryShaderSupport) { |
| for (int p = 0; p < kGrSLPrecisionCount; ++p) { |
| shaderCaps->fFloatPrecisions[kGeometry_GrShaderType][p] = |
| shaderCaps->fFloatPrecisions[kVertex_GrShaderType][p]; |
| } |
| } |
| shaderCaps->initSamplerPrecisionTable(); |
| } |
| |
| bool GrGLCaps::bgraIsInternalFormat() const { |
| return fConfigTable[kBGRA_8888_GrPixelConfig].fFormats.fBaseInternalFormat == GR_GL_BGRA; |
| } |
| |
| bool GrGLCaps::getTexImageFormats(GrPixelConfig surfaceConfig, GrPixelConfig externalConfig, |
| GrGLenum* internalFormat, GrGLenum* externalFormat, |
| GrGLenum* externalType) const { |
| if (!this->getExternalFormat(surfaceConfig, externalConfig, kTexImage_ExternalFormatUsage, |
| externalFormat, externalType)) { |
| return false; |
| } |
| *internalFormat = fConfigTable[surfaceConfig].fFormats.fInternalFormatTexImage; |
| return true; |
| } |
| |
| bool GrGLCaps::getReadPixelsFormat(GrPixelConfig surfaceConfig, GrPixelConfig externalConfig, |
| GrGLenum* externalFormat, GrGLenum* externalType) const { |
| if (!this->getExternalFormat(surfaceConfig, externalConfig, kOther_ExternalFormatUsage, |
| externalFormat, externalType)) { |
| return false; |
| } |
| return true; |
| } |
| |
| bool GrGLCaps::getRenderbufferFormat(GrPixelConfig config, GrGLenum* internalFormat) const { |
| *internalFormat = fConfigTable[config].fFormats.fInternalFormatRenderbuffer; |
| return true; |
| } |
| |
| bool GrGLCaps::getExternalFormat(GrPixelConfig surfaceConfig, GrPixelConfig memoryConfig, |
| ExternalFormatUsage usage, GrGLenum* externalFormat, |
| GrGLenum* externalType) const { |
| SkASSERT(externalFormat && externalType); |
| |
| bool surfaceIsAlphaOnly = GrPixelConfigIsAlphaOnly(surfaceConfig); |
| bool memoryIsAlphaOnly = GrPixelConfigIsAlphaOnly(memoryConfig); |
| |
| // We don't currently support moving RGBA data into and out of ALPHA surfaces. It could be |
| // made to work in many cases using glPixelStore and what not but is not needed currently. |
| if (surfaceIsAlphaOnly && !memoryIsAlphaOnly) { |
| return false; |
| } |
| |
| *externalFormat = fConfigTable[memoryConfig].fFormats.fExternalFormat[usage]; |
| *externalType = fConfigTable[memoryConfig].fFormats.fExternalType; |
| |
| // When GL_RED is supported as a texture format, our alpha-only textures are stored using |
| // GL_RED and we swizzle in order to map all components to 'r'. However, in this case the |
| // surface is not alpha-only and we want alpha to really mean the alpha component of the |
| // texture, not the red component. |
| if (memoryIsAlphaOnly && !surfaceIsAlphaOnly) { |
| if (this->textureRedSupport()) { |
| SkASSERT(GR_GL_RED == *externalFormat); |
| *externalFormat = GR_GL_ALPHA; |
| } |
| } |
| |
| return true; |
| } |
| |
| void GrGLCaps::initConfigTable(const GrContextOptions& contextOptions, |
| const GrGLContextInfo& ctxInfo, const GrGLInterface* gli, |
| GrShaderCaps* shaderCaps) { |
| /* |
| Comments on renderability of configs on various GL versions. |
| OpenGL < 3.0: |
| no built in support for render targets. |
| GL_EXT_framebuffer_object adds possible support for any sized format with base internal |
| format RGB, RGBA and NV float formats we don't use. |
| This is the following: |
| R3_G3_B2, RGB4, RGB5, RGB8, RGB10, RGB12, RGB16, RGBA2, RGBA4, RGB5_A1, RGBA8 |
| RGB10_A2, RGBA12,RGBA16 |
| Though, it is hard to believe the more obscure formats such as RGBA12 would work |
| since they aren't required by later standards and the driver can simply return |
| FRAMEBUFFER_UNSUPPORTED for anything it doesn't allow. |
| GL_ARB_framebuffer_object adds everything added by the EXT extension and additionally |
| any sized internal format with a base internal format of ALPHA, LUMINANCE, |
| LUMINANCE_ALPHA, INTENSITY, RED, and RG. |
| This adds a lot of additional renderable sized formats, including ALPHA8. |
| The GL_ARB_texture_rg brings in the RED and RG formats (8, 8I, 8UI, 16, 16I, 16UI, |
| 16F, 32I, 32UI, and 32F variants). |
| Again, the driver has an escape hatch via FRAMEBUFFER_UNSUPPORTED. |
| |
| For both the above extensions we limit ourselves to those that are also required by |
| OpenGL 3.0. |
| |
| OpenGL 3.0: |
| Any format with base internal format ALPHA, RED, RG, RGB or RGBA is "color-renderable" |
| but are not required to be supported as renderable textures/renderbuffer. |
| Required renderable color formats: |
| - RGBA32F, RGBA32I, RGBA32UI, RGBA16, RGBA16F, RGBA16I, |
| RGBA16UI, RGBA8, RGBA8I, RGBA8UI, SRGB8_ALPHA8, and |
| RGB10_A2. |
| - R11F_G11F_B10F. |
| - RG32F, RG32I, RG32UI, RG16, RG16F, RG16I, RG16UI, RG8, RG8I, |
| and RG8UI. |
| - R32F, R32I, R32UI, R16F, R16I, R16UI, R16, R8, R8I, and R8UI. |
| - ALPHA8 |
| |
| OpenGL 3.1, 3.2, 3.3 |
| Same as 3.0 except ALPHA8 requires GL_ARB_compatibility/compatibility profile. |
| OpengGL 3.3, 4.0, 4.1 |
| Adds RGB10_A2UI. |
| OpengGL 4.2 |
| Adds |
| - RGB5_A1, RGBA4 |
| - RGB565 |
| OpenGL 4.4 |
| Does away with the separate list and adds a column to the sized internal color format |
| table. However, no new formats become required color renderable. |
| |
| ES 2.0 |
| color renderable: RGBA4, RGB5_A1, RGB565 |
| GL_EXT_texture_rg adds support for R8, RG5 as a color render target |
| GL_OES_rgb8_rgba8 adds support for RGB8 and RGBA8 |
| GL_ARM_rgba8 adds support for RGBA8 (but not RGB8) |
| GL_EXT_texture_format_BGRA8888 does not add renderbuffer support |
| GL_CHROMIUM_renderbuffer_format_BGRA8888 adds BGRA8 as color-renderable |
| GL_APPLE_texture_format_BGRA8888 does not add renderbuffer support |
| |
| ES 3.0 |
| - RGBA32I, RGBA32UI, RGBA16I, RGBA16UI, RGBA8, RGBA8I, |
| RGBA8UI, SRGB8_ALPHA8, RGB10_A2, RGB10_A2UI, RGBA4, and |
| RGB5_A1. |
| - RGB8 and RGB565. |
| - RG32I, RG32UI, RG16I, RG16UI, RG8, RG8I, and RG8UI. |
| - R32I, R32UI, R16I, R16UI, R8, R8I, and R8UI |
| ES 3.1 |
| Adds RGB10_A2, RGB10_A2UI, |
| ES 3.2 |
| Adds R16F, RG16F, RGBA16F, R32F, RG32F, RGBA32F, R11F_G11F_B10F. |
| */ |
| uint32_t nonMSAARenderFlags = ConfigInfo::kRenderable_Flag | |
| ConfigInfo::kFBOColorAttachment_Flag; |
| uint32_t allRenderFlags = nonMSAARenderFlags; |
| if (kNone_MSFBOType != fMSFBOType) { |
| allRenderFlags |= ConfigInfo::kRenderableWithMSAA_Flag; |
| } |
| GrGLStandard standard = ctxInfo.standard(); |
| GrGLVersion version = ctxInfo.version(); |
| |
| bool texStorageSupported = false; |
| if (kGL_GrGLStandard == standard) { |
| // The EXT version can apply to either GL or GLES. |
| texStorageSupported = version >= GR_GL_VER(4,2) || |
| ctxInfo.hasExtension("GL_ARB_texture_storage") || |
| ctxInfo.hasExtension("GL_EXT_texture_storage"); |
| } else { |
| texStorageSupported = version >= GR_GL_VER(3,0) || |
| ctxInfo.hasExtension("GL_EXT_texture_storage"); |
| } |
| |
| // TODO: remove after command buffer supports full ES 3.0 |
| if (kGLES_GrGLStandard == standard && version >= GR_GL_VER(3,0) && |
| kChromium_GrGLDriver == ctxInfo.driver()) { |
| texStorageSupported = false; |
| } |
| |
| bool texelBufferSupport = this->shaderCaps()->texelBufferSupport(); |
| |
| fConfigTable[kUnknown_GrPixelConfig].fFormats.fBaseInternalFormat = 0; |
| fConfigTable[kUnknown_GrPixelConfig].fFormats.fSizedInternalFormat = 0; |
| fConfigTable[kUnknown_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = 0; |
| fConfigTable[kUnknown_GrPixelConfig].fFormats.fExternalType = 0; |
| fConfigTable[kUnknown_GrPixelConfig].fFormatType = kNormalizedFixedPoint_FormatType; |
| fConfigTable[kUnknown_GrPixelConfig].fSwizzle = GrSwizzle::RGBA(); |
| |
| fConfigTable[kRGBA_8888_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_RGBA; |
| fConfigTable[kRGBA_8888_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_RGBA8; |
| fConfigTable[kRGBA_8888_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = |
| GR_GL_RGBA; |
| fConfigTable[kRGBA_8888_GrPixelConfig].fFormats.fExternalType = GR_GL_UNSIGNED_BYTE; |
| fConfigTable[kRGBA_8888_GrPixelConfig].fFormatType = kNormalizedFixedPoint_FormatType; |
| fConfigTable[kRGBA_8888_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag; |
| if (kGL_GrGLStandard == standard) { |
| // We require some form of FBO support and all GLs with FBO support can render to RGBA8 |
| fConfigTable[kRGBA_8888_GrPixelConfig].fFlags |= allRenderFlags; |
| } else { |
| if (version >= GR_GL_VER(3,0) || ctxInfo.hasExtension("GL_OES_rgb8_rgba8") || |
| ctxInfo.hasExtension("GL_ARM_rgba8")) { |
| fConfigTable[kRGBA_8888_GrPixelConfig].fFlags |= allRenderFlags; |
| } |
| } |
| if (texStorageSupported) { |
| fConfigTable[kRGBA_8888_GrPixelConfig].fFlags |= ConfigInfo::kCanUseTexStorage_Flag; |
| } |
| if (texelBufferSupport) { |
| fConfigTable[kRGBA_8888_GrPixelConfig].fFlags |= ConfigInfo::kCanUseWithTexelBuffer_Flag; |
| } |
| fConfigTable[kRGBA_8888_GrPixelConfig].fSwizzle = GrSwizzle::RGBA(); |
| |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = |
| GR_GL_BGRA; |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFormats.fExternalType = GR_GL_UNSIGNED_BYTE; |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFormatType = kNormalizedFixedPoint_FormatType; |
| if (kGL_GrGLStandard == standard) { |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_RGBA; |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_RGBA8; |
| if (version >= GR_GL_VER(1, 2) || ctxInfo.hasExtension("GL_EXT_bgra")) { |
| // Since the internal format is RGBA8, it is also renderable. |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag | |
| allRenderFlags; |
| } |
| } else { |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_BGRA; |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_BGRA8; |
| if (ctxInfo.hasExtension("GL_APPLE_texture_format_BGRA8888")) { |
| // This APPLE extension introduces complexity on ES2. It leaves the internal format |
| // as RGBA, but allows BGRA as the external format. From testing, it appears that the |
| // driver remembers the external format when the texture is created (with TexImage). |
| // If you then try to upload data in the other swizzle (with TexSubImage), it fails. |
| // We could work around this, but it adds even more state tracking to code that is |
| // already too tricky. Instead, we opt not to support BGRA on ES2 with this extension. |
| // This also side-steps some ambiguous interactions with the texture storage extension. |
| if (version >= GR_GL_VER(3,0)) { |
| // The APPLE extension doesn't make this renderable. |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag; |
| } |
| } else if (ctxInfo.hasExtension("GL_EXT_texture_format_BGRA8888")) { |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag | |
| nonMSAARenderFlags; |
| if (ctxInfo.hasExtension("GL_CHROMIUM_renderbuffer_format_BGRA8888") && |
| (this->usesMSAARenderBuffers() || this->fMSFBOType == kMixedSamples_MSFBOType)) { |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFlags |= |
| ConfigInfo::kRenderableWithMSAA_Flag; |
| } |
| } |
| } |
| |
| bool isX86PowerVR = false; |
| #if defined(SK_CPU_X86) |
| if (kPowerVRRogue_GrGLRenderer == ctxInfo.renderer()) { |
| isX86PowerVR = true; |
| } |
| #endif |
| |
| // Adreno 3xx, 4xx, 5xx, and NexusPlayer all fail if we try to use TexStorage with BGRA |
| if (texStorageSupported && |
| kAdreno3xx_GrGLRenderer != ctxInfo.renderer() && |
| kAdreno4xx_GrGLRenderer != ctxInfo.renderer() && |
| kAdreno5xx_GrGLRenderer != ctxInfo.renderer() && |
| !isX86PowerVR) { |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFlags |= ConfigInfo::kCanUseTexStorage_Flag; |
| } |
| fConfigTable[kBGRA_8888_GrPixelConfig].fSwizzle = GrSwizzle::RGBA(); |
| |
| // We only enable srgb support if both textures and FBOs support srgb, |
| // *and* we can disable sRGB decode-on-read, to support "legacy" mode. |
| if (kGL_GrGLStandard == standard) { |
| if (ctxInfo.version() >= GR_GL_VER(3,0)) { |
| fSRGBSupport = true; |
| } else if (ctxInfo.hasExtension("GL_EXT_texture_sRGB")) { |
| if (ctxInfo.hasExtension("GL_ARB_framebuffer_sRGB") || |
| ctxInfo.hasExtension("GL_EXT_framebuffer_sRGB")) { |
| fSRGBSupport = true; |
| } |
| } |
| // All the above srgb extensions support toggling srgb writes |
| if (fSRGBSupport) { |
| fSRGBWriteControl = true; |
| } |
| } else { |
| fSRGBSupport = ctxInfo.version() >= GR_GL_VER(3,0) || ctxInfo.hasExtension("GL_EXT_sRGB"); |
| // NexusPlayer has strange bugs with sRGB (skbug.com/4148). This is a targeted fix to |
| // blacklist that device (and any others that might be sharing the same driver). |
| if (isX86PowerVR) { |
| fSRGBSupport = false; |
| } |
| // ES through 3.1 requires EXT_srgb_write_control to support toggling |
| // sRGB writing for destinations. |
| // See https://bug.skia.org/5329 for Adreno4xx issue. |
| fSRGBWriteControl = kAdreno4xx_GrGLRenderer != ctxInfo.renderer() && |
| ctxInfo.hasExtension("GL_EXT_sRGB_write_control"); |
| } |
| if (contextOptions.fRequireDecodeDisableForSRGB && !fSRGBDecodeDisableSupport) { |
| // To support "legacy" L32 mode, we require the ability to turn off sRGB decode. Clients |
| // can opt-out of that requirement, if they intend to always do linear blending. |
| fSRGBSupport = false; |
| } |
| |
| // This is very conservative, if we're on a platform where N32 is BGRA, and using ES, disable |
| // all sRGB support. Too much code relies on creating surfaces with N32 + sRGB colorspace, |
| // and sBGRA is basically impossible to support on any version of ES (with our current code). |
| // In particular, ES2 doesn't support sBGRA at all, and even in ES3, there is no valid pair |
| // of formats that can be used for TexImage calls to upload BGRA data to sRGBA (which is what |
| // we *have* to use as the internal format, because sBGRA doesn't exist). This primarily |
| // affects Windows. |
| if (kSkia8888_GrPixelConfig == kBGRA_8888_GrPixelConfig && kGLES_GrGLStandard == standard) { |
| fSRGBSupport = false; |
| } |
| |
| // ES2 Command Buffer has several TexStorage restrictions. It appears to fail for any format |
| // not explicitly allowed by GL_EXT_texture_storage, particularly those from other extensions. |
| bool isCommandBufferES2 = kChromium_GrGLDriver == ctxInfo.driver() && version < GR_GL_VER(3, 0); |
| |
| uint32_t srgbRenderFlags = allRenderFlags; |
| // MacPro devices with AMD cards fail to create MSAA sRGB render buffers |
| #if defined(SK_BUILD_FOR_MAC) |
| if (kATI_GrGLVendor == ctxInfo.vendor()) { |
| srgbRenderFlags &= ~ConfigInfo::kRenderableWithMSAA_Flag; |
| } |
| #endif |
| |
| fConfigTable[kSRGBA_8888_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_SRGB_ALPHA; |
| fConfigTable[kSRGBA_8888_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_SRGB8_ALPHA8; |
| // GL does not do srgb<->rgb conversions when transferring between cpu and gpu. Thus, the |
| // external format is GL_RGBA. See below for note about ES2.0 and glTex[Sub]Image. |
| fConfigTable[kSRGBA_8888_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = |
| GR_GL_RGBA; |
| fConfigTable[kSRGBA_8888_GrPixelConfig].fFormats.fExternalType = GR_GL_UNSIGNED_BYTE; |
| fConfigTable[kSRGBA_8888_GrPixelConfig].fFormatType = kNormalizedFixedPoint_FormatType; |
| if (fSRGBSupport) { |
| fConfigTable[kSRGBA_8888_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag | |
| srgbRenderFlags; |
| } |
| // ES2 Command Buffer does not allow TexStorage with SRGB8_ALPHA8_EXT |
| if (texStorageSupported && !isCommandBufferES2) { |
| fConfigTable[kSRGBA_8888_GrPixelConfig].fFlags |= ConfigInfo::kCanUseTexStorage_Flag; |
| } |
| fConfigTable[kSRGBA_8888_GrPixelConfig].fSwizzle = GrSwizzle::RGBA(); |
| // sBGRA is not a "real" thing in OpenGL, but GPUs support it, and on platforms where |
| // kN32 == BGRA, we need some way to work with it. (The default framebuffer on Windows |
| // is in this format, for example). |
| fConfigTable[kSBGRA_8888_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_SRGB_ALPHA; |
| fConfigTable[kSBGRA_8888_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_SRGB8_ALPHA8; |
| // GL does not do srgb<->rgb conversions when transferring between cpu and gpu. Thus, the |
| // external format is GL_BGRA. |
| fConfigTable[kSBGRA_8888_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = |
| GR_GL_BGRA; |
| fConfigTable[kSBGRA_8888_GrPixelConfig].fFormats.fExternalType = GR_GL_UNSIGNED_BYTE; |
| fConfigTable[kSBGRA_8888_GrPixelConfig].fFormatType = kNormalizedFixedPoint_FormatType; |
| if (fSRGBSupport && kGL_GrGLStandard == standard) { |
| fConfigTable[kSBGRA_8888_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag | |
| srgbRenderFlags; |
| } |
| |
| if (texStorageSupported) { |
| fConfigTable[kSBGRA_8888_GrPixelConfig].fFlags |= ConfigInfo::kCanUseTexStorage_Flag; |
| } |
| fConfigTable[kSBGRA_8888_GrPixelConfig].fSwizzle = GrSwizzle::RGBA(); |
| |
| bool hasIntegerTextures; |
| if (standard == kGL_GrGLStandard) { |
| hasIntegerTextures = version >= GR_GL_VER(3, 0) || |
| ctxInfo.hasExtension("GL_EXT_texture_integer"); |
| } else { |
| hasIntegerTextures = (version >= GR_GL_VER(3, 0)); |
| } |
| // We may have limited GLSL to an earlier version that doesn't have integer sampler types. |
| if (ctxInfo.glslGeneration() == k110_GrGLSLGeneration) { |
| hasIntegerTextures = false; |
| } |
| fConfigTable[kRGBA_8888_sint_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_RGBA_INTEGER; |
| fConfigTable[kRGBA_8888_sint_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_RGBA8I; |
| fConfigTable[kRGBA_8888_sint_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = GR_GL_RGBA_INTEGER; |
| fConfigTable[kRGBA_8888_sint_GrPixelConfig].fFormats.fExternalType = GR_GL_BYTE; |
| fConfigTable[kRGBA_8888_sint_GrPixelConfig].fFormatType = kInteger_FormatType; |
| // We currently only support using integer textures as srcs, not for rendering (even though GL |
| // allows it). |
| if (hasIntegerTextures) { |
| fConfigTable[kRGBA_8888_sint_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag | |
| ConfigInfo::kFBOColorAttachment_Flag; |
| if (texStorageSupported) { |
| fConfigTable[kRGBA_8888_sint_GrPixelConfig].fFlags |= |
| ConfigInfo::kCanUseTexStorage_Flag; |
| } |
| } |
| |
| fConfigTable[kRGB_565_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_RGB; |
| if (this->ES2CompatibilitySupport()) { |
| fConfigTable[kRGB_565_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_RGB565; |
| } else { |
| fConfigTable[kRGB_565_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_RGB5; |
| } |
| fConfigTable[kRGB_565_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = |
| GR_GL_RGB; |
| fConfigTable[kRGB_565_GrPixelConfig].fFormats.fExternalType = GR_GL_UNSIGNED_SHORT_5_6_5; |
| fConfigTable[kRGB_565_GrPixelConfig].fFormatType = kNormalizedFixedPoint_FormatType; |
| fConfigTable[kRGB_565_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag; |
| if (kGL_GrGLStandard == standard) { |
| if (version >= GR_GL_VER(4, 2) || ctxInfo.hasExtension("GL_ARB_ES2_compatibility")) { |
| fConfigTable[kRGB_565_GrPixelConfig].fFlags |= allRenderFlags; |
| } |
| } else { |
| fConfigTable[kRGB_565_GrPixelConfig].fFlags |= allRenderFlags; |
| } |
| // 565 is not a sized internal format on desktop GL. So on desktop with |
| // 565 we always use an unsized internal format to let the system pick |
| // the best sized format to convert the 565 data to. Since TexStorage |
| // only allows sized internal formats we disallow it. |
| // |
| // TODO: As of 4.2, regular GL supports 565. This logic is due for an |
| // update. |
| if (texStorageSupported && kGL_GrGLStandard != standard) { |
| fConfigTable[kRGB_565_GrPixelConfig].fFlags |= ConfigInfo::kCanUseTexStorage_Flag; |
| } |
| fConfigTable[kRGB_565_GrPixelConfig].fSwizzle = GrSwizzle::RGBA(); |
| |
| fConfigTable[kRGBA_4444_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_RGBA; |
| fConfigTable[kRGBA_4444_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_RGBA4; |
| fConfigTable[kRGBA_4444_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = |
| GR_GL_RGBA; |
| fConfigTable[kRGBA_4444_GrPixelConfig].fFormats.fExternalType = GR_GL_UNSIGNED_SHORT_4_4_4_4; |
| fConfigTable[kRGBA_4444_GrPixelConfig].fFormatType = kNormalizedFixedPoint_FormatType; |
| fConfigTable[kRGBA_4444_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag; |
| if (kGL_GrGLStandard == standard) { |
| if (version >= GR_GL_VER(4, 2)) { |
| fConfigTable[kRGBA_4444_GrPixelConfig].fFlags |= allRenderFlags; |
| } |
| } else { |
| fConfigTable[kRGBA_4444_GrPixelConfig].fFlags |= allRenderFlags; |
| } |
| if (texStorageSupported) { |
| fConfigTable[kRGBA_4444_GrPixelConfig].fFlags |= ConfigInfo::kCanUseTexStorage_Flag; |
| } |
| fConfigTable[kRGBA_4444_GrPixelConfig].fSwizzle = GrSwizzle::RGBA(); |
| |
| fConfigTable[kAlpha_8_GrPixelConfig].fFormats.fExternalType = GR_GL_UNSIGNED_BYTE; |
| fConfigTable[kAlpha_8_GrPixelConfig].fFormatType = kNormalizedFixedPoint_FormatType; |
| fConfigTable[kAlpha_8_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag; |
| if (this->textureRedSupport()) { |
| fConfigTable[kAlpha_8_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_RED; |
| fConfigTable[kAlpha_8_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_R8; |
| fConfigTable[kAlpha_8_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = |
| GR_GL_RED; |
| fConfigTable[kAlpha_8_GrPixelConfig].fSwizzle = GrSwizzle::RRRR(); |
| if (texelBufferSupport) { |
| fConfigTable[kAlpha_8_GrPixelConfig].fFlags |= ConfigInfo::kCanUseWithTexelBuffer_Flag; |
| } |
| fConfigTable[kAlpha_8_GrPixelConfig].fFlags |= allRenderFlags; |
| } else { |
| fConfigTable[kAlpha_8_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_ALPHA; |
| fConfigTable[kAlpha_8_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_ALPHA8; |
| fConfigTable[kAlpha_8_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = |
| GR_GL_ALPHA; |
| fConfigTable[kAlpha_8_GrPixelConfig].fSwizzle = GrSwizzle::AAAA(); |
| if (fAlpha8IsRenderable) { |
| fConfigTable[kAlpha_8_GrPixelConfig].fFlags |= allRenderFlags; |
| } |
| } |
| |
| // ES2 Command Buffer does not allow TexStorage with R8_EXT (so Alpha_8 and Gray_8) |
| if (texStorageSupported && !isCommandBufferES2) { |
| fConfigTable[kAlpha_8_GrPixelConfig].fFlags |= ConfigInfo::kCanUseTexStorage_Flag; |
| } |
| |
| fConfigTable[kGray_8_GrPixelConfig].fFormats.fExternalType = GR_GL_UNSIGNED_BYTE; |
| fConfigTable[kGray_8_GrPixelConfig].fFormatType = kNormalizedFixedPoint_FormatType; |
| fConfigTable[kGray_8_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag; |
| if (this->textureRedSupport()) { |
| fConfigTable[kGray_8_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_RED; |
| fConfigTable[kGray_8_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_R8; |
| fConfigTable[kGray_8_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = |
| GR_GL_RED; |
| fConfigTable[kGray_8_GrPixelConfig].fSwizzle = GrSwizzle::RRRA(); |
| if (texelBufferSupport) { |
| fConfigTable[kGray_8_GrPixelConfig].fFlags |= ConfigInfo::kCanUseWithTexelBuffer_Flag; |
| } |
| } else { |
| fConfigTable[kGray_8_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_LUMINANCE; |
| fConfigTable[kGray_8_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_LUMINANCE8; |
| fConfigTable[kGray_8_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = |
| GR_GL_LUMINANCE; |
| fConfigTable[kGray_8_GrPixelConfig].fSwizzle = GrSwizzle::RGBA(); |
| } |
| #if 0 // Leaving Gray8 as non-renderable, to keep things simple and match raster |
| if (this->textureRedSupport() || |
| (kDesktop_ARB_MSFBOType == this->msFBOType() && |
| ctxInfo.renderer() != kOSMesa_GrGLRenderer)) { |
| // desktop ARB extension/3.0+ supports LUMINANCE8 as renderable. |
| // However, osmesa fails if it used even when GL_ARB_framebuffer_object is present. |
| // Core profile removes LUMINANCE8 support, but we should have chosen R8 in that case. |
| fConfigTable[kGray_8_GrPixelConfig].fFlags |= allRenderFlags; |
| } |
| #endif |
| if (texStorageSupported && !isCommandBufferES2) { |
| fConfigTable[kGray_8_GrPixelConfig].fFlags |= ConfigInfo::kCanUseTexStorage_Flag; |
| } |
| |
| // Check for [half] floating point texture support |
| // NOTE: We disallow floating point textures on ES devices if linear filtering modes are not |
| // supported. This is for simplicity, but a more granular approach is possible. Coincidentally, |
| // [half] floating point textures became part of the standard in ES3.1 / OGL 3.0. |
| bool hasFPTextures = false; |
| bool hasHalfFPTextures = false; |
| bool rgIsTexturable = false; |
| // for now we don't support floating point MSAA on ES |
| uint32_t fpRenderFlags = (kGL_GrGLStandard == standard) ? allRenderFlags : nonMSAARenderFlags; |
| |
| if (kGL_GrGLStandard == standard) { |
| if (version >= GR_GL_VER(3, 0) || ctxInfo.hasExtension("GL_ARB_texture_float")) { |
| hasFPTextures = true; |
| hasHalfFPTextures = true; |
| rgIsTexturable = true; |
| } |
| } else { |
| if (version >= GR_GL_VER(3, 1)) { |
| hasFPTextures = true; |
| hasHalfFPTextures = true; |
| rgIsTexturable = true; |
| } else { |
| if (ctxInfo.hasExtension("GL_OES_texture_float_linear") && |
| ctxInfo.hasExtension("GL_OES_texture_float")) { |
| hasFPTextures = true; |
| } |
| if (ctxInfo.hasExtension("GL_OES_texture_half_float_linear") && |
| ctxInfo.hasExtension("GL_OES_texture_half_float")) { |
| hasHalfFPTextures = true; |
| } |
| } |
| } |
| |
| for (auto fpconfig : {kRGBA_float_GrPixelConfig, kRG_float_GrPixelConfig}) { |
| const GrGLenum format = kRGBA_float_GrPixelConfig == fpconfig ? GR_GL_RGBA : GR_GL_RG; |
| fConfigTable[fpconfig].fFormats.fBaseInternalFormat = format; |
| fConfigTable[fpconfig].fFormats.fSizedInternalFormat = |
| kRGBA_float_GrPixelConfig == fpconfig ? GR_GL_RGBA32F : GR_GL_RG32F; |
| fConfigTable[fpconfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = format; |
| fConfigTable[fpconfig].fFormats.fExternalType = GR_GL_FLOAT; |
| fConfigTable[fpconfig].fFormatType = kFloat_FormatType; |
| if (hasFPTextures) { |
| fConfigTable[fpconfig].fFlags = rgIsTexturable ? ConfigInfo::kTextureable_Flag : 0; |
| // For now we only enable rendering to float on desktop, because on ES we'd have to |
| // solve many precision issues and no clients actually want this yet. |
| if (kGL_GrGLStandard == standard /* || version >= GR_GL_VER(3,2) || |
| ctxInfo.hasExtension("GL_EXT_color_buffer_float")*/) { |
| fConfigTable[fpconfig].fFlags |= fpRenderFlags; |
| } |
| } |
| if (texStorageSupported) { |
| fConfigTable[fpconfig].fFlags |= ConfigInfo::kCanUseTexStorage_Flag; |
| } |
| if (texelBufferSupport) { |
| fConfigTable[fpconfig].fFlags |= ConfigInfo::kCanUseWithTexelBuffer_Flag; |
| } |
| fConfigTable[fpconfig].fSwizzle = GrSwizzle::RGBA(); |
| } |
| |
| if (this->textureRedSupport()) { |
| fConfigTable[kAlpha_half_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_RED; |
| fConfigTable[kAlpha_half_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_R16F; |
| fConfigTable[kAlpha_half_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] |
| = GR_GL_RED; |
| fConfigTable[kAlpha_half_GrPixelConfig].fSwizzle = GrSwizzle::RRRR(); |
| if (texelBufferSupport) { |
| fConfigTable[kAlpha_half_GrPixelConfig].fFlags |= |
| ConfigInfo::kCanUseWithTexelBuffer_Flag; |
| } |
| } else { |
| fConfigTable[kAlpha_half_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_ALPHA; |
| fConfigTable[kAlpha_half_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_ALPHA16F; |
| fConfigTable[kAlpha_half_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] |
| = GR_GL_ALPHA; |
| fConfigTable[kAlpha_half_GrPixelConfig].fSwizzle = GrSwizzle::AAAA(); |
| } |
| // ANGLE always returns GL_HALF_FLOAT_OES for GL_IMPLEMENTATION_COLOR_READ_TYPE, even though |
| // ES3 would typically return GL_HALF_FLOAT. The correct fix is for us to respect the value |
| // returned when we query, but that turns into a bigger refactor, so just work around it. |
| if (kGL_GrGLStandard == ctxInfo.standard() || |
| (ctxInfo.version() >= GR_GL_VER(3, 0) && kANGLE_GrGLDriver != ctxInfo.driver())) { |
| fConfigTable[kAlpha_half_GrPixelConfig].fFormats.fExternalType = GR_GL_HALF_FLOAT; |
| } else { |
| fConfigTable[kAlpha_half_GrPixelConfig].fFormats.fExternalType = GR_GL_HALF_FLOAT_OES; |
| } |
| fConfigTable[kAlpha_half_GrPixelConfig].fFormatType = kFloat_FormatType; |
| if (texStorageSupported) { |
| fConfigTable[kAlpha_half_GrPixelConfig].fFlags |= ConfigInfo::kCanUseTexStorage_Flag; |
| } |
| if (hasHalfFPTextures) { |
| fConfigTable[kAlpha_half_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag; |
| // ES requires either 3.2 or the combination of EXT_color_buffer_half_float and support for |
| // GL_RED internal format. |
| if (kGL_GrGLStandard == standard || version >= GR_GL_VER(3, 2) || |
| (this->textureRedSupport() && |
| ctxInfo.hasExtension("GL_EXT_color_buffer_half_float"))) { |
| fConfigTable[kAlpha_half_GrPixelConfig].fFlags |= fpRenderFlags; |
| } |
| } |
| |
| fConfigTable[kRGBA_half_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_RGBA; |
| fConfigTable[kRGBA_half_GrPixelConfig].fFormats.fSizedInternalFormat = GR_GL_RGBA16F; |
| fConfigTable[kRGBA_half_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = |
| GR_GL_RGBA; |
| // See comment above, re: ANGLE and ES3. |
| if (kGL_GrGLStandard == ctxInfo.standard() || |
| (ctxInfo.version() >= GR_GL_VER(3, 0) && kANGLE_GrGLDriver != ctxInfo.driver())) { |
| fConfigTable[kRGBA_half_GrPixelConfig].fFormats.fExternalType = GR_GL_HALF_FLOAT; |
| } else { |
| fConfigTable[kRGBA_half_GrPixelConfig].fFormats.fExternalType = GR_GL_HALF_FLOAT_OES; |
| } |
| fConfigTable[kRGBA_half_GrPixelConfig].fFormatType = kFloat_FormatType; |
| if (hasHalfFPTextures) { |
| fConfigTable[kRGBA_half_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag; |
| // ES requires 3.2 or EXT_color_buffer_half_float. |
| if (kGL_GrGLStandard == standard || version >= GR_GL_VER(3,2) || |
| ctxInfo.hasExtension("GL_EXT_color_buffer_half_float")) { |
| fConfigTable[kRGBA_half_GrPixelConfig].fFlags |= fpRenderFlags; |
| } |
| } |
| if (texStorageSupported) { |
| fConfigTable[kRGBA_half_GrPixelConfig].fFlags |= ConfigInfo::kCanUseTexStorage_Flag; |
| } |
| if (texelBufferSupport) { |
| fConfigTable[kRGBA_half_GrPixelConfig].fFlags |= ConfigInfo::kCanUseWithTexelBuffer_Flag; |
| } |
| fConfigTable[kRGBA_half_GrPixelConfig].fSwizzle = GrSwizzle::RGBA(); |
| |
| // Bulk populate the texture internal/external formats here and then deal with exceptions below. |
| |
| // ES 2.0 requires that the internal/external formats match. |
| bool useSizedTexFormats = (kGL_GrGLStandard == ctxInfo.standard() || |
| ctxInfo.version() >= GR_GL_VER(3,0)); |
| // All ES versions (thus far) require sized internal formats for render buffers. |
| // TODO: Always use sized internal format? |
| bool useSizedRbFormats = kGLES_GrGLStandard == ctxInfo.standard(); |
| |
| for (int i = 0; i < kGrPixelConfigCnt; ++i) { |
| // Almost always we want to pass fExternalFormat[kOther_ExternalFormatUsage] as the <format> |
| // param to glTex[Sub]Image. |
| fConfigTable[i].fFormats.fExternalFormat[kTexImage_ExternalFormatUsage] = |
| fConfigTable[i].fFormats.fExternalFormat[kOther_ExternalFormatUsage]; |
| fConfigTable[i].fFormats.fInternalFormatTexImage = useSizedTexFormats ? |
| fConfigTable[i].fFormats.fSizedInternalFormat : |
| fConfigTable[i].fFormats.fBaseInternalFormat; |
| fConfigTable[i].fFormats.fInternalFormatRenderbuffer = useSizedRbFormats ? |
| fConfigTable[i].fFormats.fSizedInternalFormat : |
| fConfigTable[i].fFormats.fBaseInternalFormat; |
| } |
| // OpenGL ES 2.0 + GL_EXT_sRGB allows GL_SRGB_ALPHA to be specified as the <format> |
| // param to Tex(Sub)Image. ES 2.0 requires the <internalFormat> and <format> params to match. |
| // Thus, on ES 2.0 we will use GL_SRGB_ALPHA as the <format> param. |
| // On OpenGL and ES 3.0+ GL_SRGB_ALPHA does not work for the <format> param to glTexImage. |
| if (ctxInfo.standard() == kGLES_GrGLStandard && ctxInfo.version() == GR_GL_VER(2,0)) { |
| fConfigTable[kSRGBA_8888_GrPixelConfig].fFormats.fExternalFormat[kTexImage_ExternalFormatUsage] = |
| GR_GL_SRGB_ALPHA; |
| |
| // Additionally, because we had to "invent" sBGRA, there is no way to make it work |
| // in ES 2.0, because there is no <internalFormat> we can use. So just make that format |
| // unsupported. (If we have no sRGB support at all, this will get overwritten below). |
| fConfigTable[kSBGRA_8888_GrPixelConfig].fFlags = 0; |
| } |
| |
| // If BGRA is supported as an internal format it must always be specified to glTex[Sub]Image |
| // as a base format. |
| // GL_EXT_texture_format_BGRA8888: |
| // This extension GL_BGRA as an unsized internal format. However, it is written against ES |
| // 2.0 and therefore doesn't define a value for GL_BGRA8 as ES 2.0 uses unsized internal |
| // formats. |
| // GL_APPLE_texture_format_BGRA8888: |
| // ES 2.0: the extension makes BGRA an external format but not an internal format. |
| // ES 3.0: the extension explicitly states GL_BGRA8 is not a valid internal format for |
| // glTexImage (just for glTexStorage). |
| if (useSizedTexFormats && this->bgraIsInternalFormat()) { |
| fConfigTable[kBGRA_8888_GrPixelConfig].fFormats.fInternalFormatTexImage = GR_GL_BGRA; |
| } |
| |
| // If we don't have texture swizzle support then the shader generator must insert the |
| // swizzle into shader code. |
| if (!this->textureSwizzleSupport()) { |
| for (int i = 0; i < kGrPixelConfigCnt; ++i) { |
| shaderCaps->fConfigTextureSwizzle[i] = fConfigTable[i].fSwizzle; |
| } |
| } |
| |
| // Shader output swizzles will default to RGBA. When we've use GL_RED instead of GL_ALPHA to |
| // implement kAlpha_8_GrPixelConfig we need to swizzle the shader outputs so the alpha channel |
| // gets written to the single component. |
| if (this->textureRedSupport()) { |
| for (int i = 0; i < kGrPixelConfigCnt; ++i) { |
| GrPixelConfig config = static_cast<GrPixelConfig>(i); |
| if (GrPixelConfigIsAlphaOnly(config) && |
| fConfigTable[i].fFormats.fBaseInternalFormat == GR_GL_RED) { |
| shaderCaps->fConfigOutputSwizzle[i] = GrSwizzle::AAAA(); |
| } |
| } |
| } |
| |
| // We currently only support images on rgba textures formats. We could add additional formats |
| // if desired. The shader builder would have to be updated to add swizzles where appropriate |
| // (e.g. where we use GL_RED textures to implement alpha configs). |
| if (this->shaderCaps()->imageLoadStoreSupport()) { |
| fConfigTable[kRGBA_8888_sint_GrPixelConfig].fFlags |= |
| ConfigInfo::kCanUseAsImageStorage_Flag; |
| // In OpenGL ES a texture may only be used with BindImageTexture if it has been made |
| // immutable via TexStorage. We create non-integer textures as mutable textures using |
| // TexImage because we may lazily add MIP levels. Thus, on ES we currently disable image |
| // storage support for non-integer textures. |
| if (kGL_GrGLStandard == ctxInfo.standard()) { |
| fConfigTable[kRGBA_8888_GrPixelConfig].fFlags |= ConfigInfo::kCanUseAsImageStorage_Flag; |
| fConfigTable[kRGBA_float_GrPixelConfig].fFlags |= |
| ConfigInfo::kCanUseAsImageStorage_Flag; |
| fConfigTable[kRGBA_half_GrPixelConfig].fFlags |= ConfigInfo::kCanUseAsImageStorage_Flag; |
| } |
| } |
| |
| #ifdef SK_DEBUG |
| // Make sure we initialized everything. |
| ConfigInfo defaultEntry; |
| for (int i = 0; i < kGrPixelConfigCnt; ++i) { |
| // Make sure we didn't set renderable and not blittable or renderable with msaa and not |
| // renderable. |
| SkASSERT(!((ConfigInfo::kRenderable_Flag) && !(ConfigInfo::kFBOColorAttachment_Flag))); |
| SkASSERT(!((ConfigInfo::kRenderableWithMSAA_Flag) && !(ConfigInfo::kRenderable_Flag))); |
| SkASSERT(defaultEntry.fFormats.fBaseInternalFormat != |
| fConfigTable[i].fFormats.fBaseInternalFormat); |
| SkASSERT(defaultEntry.fFormats.fSizedInternalFormat != |
| fConfigTable[i].fFormats.fSizedInternalFormat); |
| for (int j = 0; j < kExternalFormatUsageCnt; ++j) { |
| SkASSERT(defaultEntry.fFormats.fExternalFormat[j] != |
| fConfigTable[i].fFormats.fExternalFormat[j]); |
| } |
| SkASSERT(defaultEntry.fFormats.fExternalType != fConfigTable[i].fFormats.fExternalType); |
| } |
| #endif |
| } |
| |
| bool GrGLCaps::initDescForDstCopy(const GrRenderTargetProxy* src, GrSurfaceDesc* desc, |
| bool* rectsMustMatch, bool* disallowSubrect) const { |
| // By default, we don't require rects to match. |
| *rectsMustMatch = false; |
| |
| // By default, we allow subrects. |
| *disallowSubrect = false; |
| |
| // If the src is a texture, we can implement the blit as a draw assuming the config is |
| // renderable. |
| if (src->asTextureProxy() && this->isConfigRenderable(src->config(), false)) { |
| desc->fOrigin = kBottomLeft_GrSurfaceOrigin; |
| desc->fFlags = kRenderTarget_GrSurfaceFlag; |
| desc->fConfig = src->config(); |
| return true; |
| } |
| |
| { |
| // The only way we could see a non-GR_GL_TEXTURE_2D texture would be if it were |
| // wrapped. In that case the proxy would already be instantiated. |
| const GrTexture* srcTexture = src->priv().peekTexture(); |
| const GrGLTexture* glSrcTexture = static_cast<const GrGLTexture*>(srcTexture); |
| if (glSrcTexture && glSrcTexture->target() != GR_GL_TEXTURE_2D) { |
| // Not supported for FBO blit or CopyTexSubImage |
| return false; |
| } |
| } |
| |
| // We look for opportunities to use CopyTexSubImage, or fbo blit. If neither are |
| // possible and we return false to fallback to creating a render target dst for render-to- |
| // texture. This code prefers CopyTexSubImage to fbo blit and avoids triggering temporary fbo |
| // creation. It isn't clear that avoiding temporary fbo creation is actually optimal. |
| GrSurfaceOrigin originForBlitFramebuffer = kTopLeft_GrSurfaceOrigin; |
| bool rectsMustMatchForBlitFramebuffer = false; |
| bool disallowSubrectForBlitFramebuffer = false; |
| if (src->numColorSamples() && |
| (this->blitFramebufferSupportFlags() & kResolveMustBeFull_BlitFrambufferFlag)) { |
| rectsMustMatchForBlitFramebuffer = true; |
| disallowSubrectForBlitFramebuffer = true; |
| // Mirroring causes rects to mismatch later, don't allow it. |
| originForBlitFramebuffer = src->origin(); |
| } else if (src->numColorSamples() && (this->blitFramebufferSupportFlags() & |
| kRectsMustMatchForMSAASrc_BlitFramebufferFlag)) { |
| rectsMustMatchForBlitFramebuffer = true; |
| // Mirroring causes rects to mismatch later, don't allow it. |
| originForBlitFramebuffer = src->origin(); |
| } else if (this->blitFramebufferSupportFlags() & kNoScalingOrMirroring_BlitFramebufferFlag) { |
| originForBlitFramebuffer = src->origin(); |
| } |
| |
| // Check for format issues with glCopyTexSubImage2D |
| if (this->bgraIsInternalFormat() && kBGRA_8888_GrPixelConfig == src->config()) { |
| // glCopyTexSubImage2D doesn't work with this config. If the bgra can be used with fbo blit |
| // then we set up for that, otherwise fail. |
| if (this->canConfigBeFBOColorAttachment(kBGRA_8888_GrPixelConfig)) { |
| desc->fOrigin = originForBlitFramebuffer; |
| desc->fConfig = kBGRA_8888_GrPixelConfig; |
| *rectsMustMatch = rectsMustMatchForBlitFramebuffer; |
| *disallowSubrect = disallowSubrectForBlitFramebuffer; |
| return true; |
| } |
| return false; |
| } |
| |
| { |
| bool srcIsMSAARenderbuffer = GrFSAAType::kUnifiedMSAA == src->fsaaType() && |
| this->usesMSAARenderBuffers(); |
| if (srcIsMSAARenderbuffer) { |
| // It's illegal to call CopyTexSubImage2D on a MSAA renderbuffer. Set up for FBO |
| // blit or fail. |
| if (this->canConfigBeFBOColorAttachment(src->config())) { |
| desc->fOrigin = originForBlitFramebuffer; |
| desc->fConfig = src->config(); |
| *rectsMustMatch = rectsMustMatchForBlitFramebuffer; |
| *disallowSubrect = disallowSubrectForBlitFramebuffer; |
| return true; |
| } |
| return false; |
| } |
| } |
| |
| // We'll do a CopyTexSubImage. Make the dst a plain old texture. |
| desc->fConfig = src->config(); |
| desc->fOrigin = src->origin(); |
| desc->fFlags = kNone_GrSurfaceFlags; |
| return true; |
| } |
| |
| void GrGLCaps::onApplyOptionsOverrides(const GrContextOptions& options) { |
| if (options.fEnableInstancedRendering) { |
| fInstancedSupport = gr_instanced::GLInstancedRendering::CheckSupport(*this); |
| #ifndef SK_BUILD_FOR_MAC |
| // OS X doesn't seem to write correctly to floating point textures when using |
| // glDraw*Indirect, regardless of the underlying GPU. |
| fAvoidInstancedDrawsToFPTargets = true; |
| #endif |
| } |
| if (options.fUseDrawInsteadOfPartialRenderTargetWrite) { |
| fUseDrawInsteadOfAllRenderTargetWrites = true; |
| } |
| } |