| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "src/gpu/GrCaps.h" |
| |
| #include "include/gpu/GrBackendSurface.h" |
| #include "include/gpu/GrContextOptions.h" |
| #include "include/private/GrTypesPriv.h" |
| #include "src/gpu/GrBackendUtils.h" |
| #include "src/gpu/GrRenderTargetProxy.h" |
| #include "src/gpu/GrSurface.h" |
| #include "src/gpu/GrSurfaceProxy.h" |
| #include "src/gpu/GrWindowRectangles.h" |
| #include "src/utils/SkJSONWriter.h" |
| |
| GrCaps::GrCaps(const GrContextOptions& options) { |
| fMipmapSupport = false; |
| fNPOTTextureTileSupport = false; |
| fReuseScratchTextures = true; |
| fReuseScratchBuffers = true; |
| fGpuTracingSupport = false; |
| fOversizedStencilSupport = false; |
| fTextureBarrierSupport = false; |
| fSampleLocationsSupport = false; |
| fMultisampleDisableSupport = false; |
| fDrawInstancedSupport = false; |
| fNativeDrawIndirectSupport = false; |
| fUseClientSideIndirectBuffers = false; |
| fMixedSamplesSupport = false; |
| fConservativeRasterSupport = false; |
| fWireframeSupport = false; |
| fMSAAResolvesAutomatically = false; |
| fUsePrimitiveRestart = false; |
| fPreferClientSideDynamicBuffers = false; |
| fPreferFullscreenClears = false; |
| fTwoSidedStencilRefsAndMasksMustMatch = false; |
| fMustClearUploadedBufferData = false; |
| fShouldInitializeTextures = false; |
| fSupportsAHardwareBufferImages = false; |
| fFenceSyncSupport = false; |
| fSemaphoreSupport = false; |
| fCrossContextTextureSupport = false; |
| fHalfFloatVertexAttributeSupport = false; |
| fDynamicStateArrayGeometryProcessorTextureSupport = false; |
| fPerformPartialClearsAsDraws = false; |
| fPerformColorClearsAsDraws = false; |
| fAvoidLargeIndexBufferDraws = false; |
| fPerformStencilClearsAsDraws = false; |
| fTransferFromBufferToTextureSupport = false; |
| fTransferFromSurfaceToBufferSupport = false; |
| fWritePixelsRowBytesSupport = false; |
| fReadPixelsRowBytesSupport = false; |
| fShouldCollapseSrcOverToSrcWhenAble = false; |
| fMustSyncGpuDuringAbandon = true; |
| fDriverDisableMSAAClipAtlas = false; |
| fDisableTessellationPathRenderer = false; |
| |
| fBlendEquationSupport = kBasic_BlendEquationSupport; |
| fAdvBlendEqDisableFlags = 0; |
| |
| fMapBufferFlags = kNone_MapFlags; |
| |
| fMaxVertexAttributes = 0; |
| fMaxRenderTargetSize = 1; |
| fMaxPreferredRenderTargetSize = 1; |
| fMaxTextureSize = 1; |
| fMaxWindowRectangles = 0; |
| fInternalMultisampleCount = 0; |
| |
| fSuppressPrints = options.fSuppressPrints; |
| #if GR_TEST_UTILS |
| fWireframeMode = options.fWireframeMode; |
| #else |
| fWireframeMode = false; |
| #endif |
| fBufferMapThreshold = options.fBufferMapThreshold; |
| fAvoidStencilBuffers = false; |
| fAvoidWritePixelsFastPath = false; |
| fRequiresManualFBBarrierAfterTessellatedStencilDraw = false; |
| fNativeDrawIndexedIndirectIsBroken = false; |
| |
| fPreferVRAMUseOverFlushes = true; |
| |
| // Default to true, allow older versions of OpenGL to disable explicitly |
| fClampToBorderSupport = true; |
| |
| fDriverBugWorkarounds = options.fDriverBugWorkarounds; |
| } |
| |
| void GrCaps::finishInitialization(const GrContextOptions& options) { |
| if (fMixedSamplesSupport) { |
| // We need multisample disable and dual source blending in order to support mixed samples. |
| fMixedSamplesSupport = this->multisampleDisableSupport() && |
| this->shaderCaps()->dualSourceBlendingSupport(); |
| } |
| |
| if (!fNativeDrawIndirectSupport) { |
| // We will implement indirect draws with a polyfill, so the commands need to reside in CPU |
| // memory. |
| fUseClientSideIndirectBuffers = true; |
| } |
| |
| this->applyOptionsOverrides(options); |
| |
| // Our render targets are always created with textures as the color attachment, hence this min: |
| fMaxRenderTargetSize = std::min(fMaxRenderTargetSize, fMaxTextureSize); |
| fMaxPreferredRenderTargetSize = std::min(fMaxPreferredRenderTargetSize, fMaxRenderTargetSize); |
| } |
| |
| void GrCaps::applyOptionsOverrides(const GrContextOptions& options) { |
| fShaderCaps->applyOptionsOverrides(options); |
| this->onApplyOptionsOverrides(options); |
| if (options.fDisableDriverCorrectnessWorkarounds) { |
| SkASSERT(!fDriverDisableMSAAClipAtlas); |
| SkASSERT(!fDisableTessellationPathRenderer); |
| SkASSERT(!fAvoidStencilBuffers); |
| SkASSERT(!fAvoidWritePixelsFastPath); |
| SkASSERT(!fRequiresManualFBBarrierAfterTessellatedStencilDraw); |
| SkASSERT(!fNativeDrawIndexedIndirectIsBroken); |
| SkASSERT(!fAdvBlendEqDisableFlags); |
| SkASSERT(!fPerformColorClearsAsDraws); |
| SkASSERT(!fPerformStencilClearsAsDraws); |
| // Don't check the partial-clear workaround, since that is a backend limitation, not a |
| // driver workaround (it just so happens the fallbacks are the same). |
| } |
| if (GrContextOptions::Enable::kNo == options.fUseDrawInsteadOfClear) { |
| fPerformColorClearsAsDraws = false; |
| fPerformStencilClearsAsDraws = false; |
| } else if (GrContextOptions::Enable::kYes == options.fUseDrawInsteadOfClear) { |
| fPerformColorClearsAsDraws = true; |
| fPerformStencilClearsAsDraws = true; |
| } |
| |
| fMaxTextureSize = std::min(fMaxTextureSize, options.fMaxTextureSizeOverride); |
| #if GR_TEST_UTILS |
| if (options.fSuppressDualSourceBlending) { |
| // GrShaderCaps::applyOptionsOverrides already handled the rest; here we just need to make |
| // sure mixed samples gets disabled if dual source blending is suppressed. |
| fMixedSamplesSupport = false; |
| } |
| if (options.fClearAllTextures) { |
| fShouldInitializeTextures = true; |
| } |
| if (options.fDisallowWritePixelRowBytes) { |
| fWritePixelsRowBytesSupport = false; |
| } |
| #endif |
| if (options.fSuppressMipmapSupport) { |
| fMipmapSupport = false; |
| } |
| |
| if (fMaxWindowRectangles > GrWindowRectangles::kMaxWindows) { |
| SkDebugf("WARNING: capping window rectangles at %i. HW advertises support for %i.\n", |
| GrWindowRectangles::kMaxWindows, fMaxWindowRectangles); |
| fMaxWindowRectangles = GrWindowRectangles::kMaxWindows; |
| } |
| |
| fInternalMultisampleCount = options.fInternalMultisampleCount; |
| |
| fAvoidStencilBuffers = options.fAvoidStencilBuffers; |
| |
| fDriverBugWorkarounds.applyOverrides(options.fDriverBugWorkarounds); |
| } |
| |
| |
| #ifdef SK_ENABLE_DUMP_GPU |
| #include "src/gpu/GrTestUtils.h" |
| |
| static SkString map_flags_to_string(uint32_t flags) { |
| SkString str; |
| if (GrCaps::kNone_MapFlags == flags) { |
| str = "none"; |
| } else { |
| SkASSERT(GrCaps::kCanMap_MapFlag & flags); |
| SkDEBUGCODE(flags &= ~GrCaps::kCanMap_MapFlag); |
| str = "can_map"; |
| |
| if (GrCaps::kSubset_MapFlag & flags) { |
| str.append(" partial"); |
| } else { |
| str.append(" full"); |
| } |
| SkDEBUGCODE(flags &= ~GrCaps::kSubset_MapFlag); |
| if (GrCaps::kAsyncRead_MapFlag & flags) { |
| str.append(" async_read"); |
| } else { |
| str.append(" sync_read"); |
| } |
| SkDEBUGCODE(flags &= ~GrCaps::kAsyncRead_MapFlag); |
| } |
| SkASSERT(0 == flags); // Make sure we handled all the flags. |
| return str; |
| } |
| |
| void GrCaps::dumpJSON(SkJSONWriter* writer) const { |
| writer->beginObject(); |
| |
| writer->appendBool("MIP Map Support", fMipmapSupport); |
| writer->appendBool("NPOT Texture Tile Support", fNPOTTextureTileSupport); |
| writer->appendBool("Reuse Scratch Textures", fReuseScratchTextures); |
| writer->appendBool("Reuse Scratch Buffers", fReuseScratchBuffers); |
| writer->appendBool("Gpu Tracing Support", fGpuTracingSupport); |
| writer->appendBool("Oversized Stencil Support", fOversizedStencilSupport); |
| writer->appendBool("Texture Barrier Support", fTextureBarrierSupport); |
| writer->appendBool("Sample Locations Support", fSampleLocationsSupport); |
| writer->appendBool("Multisample disable support", fMultisampleDisableSupport); |
| writer->appendBool("Draw Instanced Support", fDrawInstancedSupport); |
| writer->appendBool("Native Draw Indirect Support", fNativeDrawIndirectSupport); |
| writer->appendBool("Use client side indirect buffers", fUseClientSideIndirectBuffers); |
| writer->appendBool("Mixed Samples Support", fMixedSamplesSupport); |
| writer->appendBool("Conservative Raster Support", fConservativeRasterSupport); |
| writer->appendBool("Wireframe Support", fWireframeSupport); |
| writer->appendBool("MSAA Resolves Automatically", fMSAAResolvesAutomatically); |
| writer->appendBool("Use primitive restart", fUsePrimitiveRestart); |
| writer->appendBool("Prefer client-side dynamic buffers", fPreferClientSideDynamicBuffers); |
| writer->appendBool("Prefer fullscreen clears (and stencil discard)", fPreferFullscreenClears); |
| writer->appendBool("Two-sided Stencil Refs And Masks Must Match", |
| fTwoSidedStencilRefsAndMasksMustMatch); |
| writer->appendBool("Must clear buffer memory", fMustClearUploadedBufferData); |
| writer->appendBool("Should initialize textures", fShouldInitializeTextures); |
| writer->appendBool("Supports importing AHardwareBuffers", fSupportsAHardwareBufferImages); |
| writer->appendBool("Fence sync support", fFenceSyncSupport); |
| writer->appendBool("Semaphore support", fSemaphoreSupport); |
| writer->appendBool("Cross context texture support", fCrossContextTextureSupport); |
| writer->appendBool("Half float vertex attribute support", fHalfFloatVertexAttributeSupport); |
| writer->appendBool("Specify GeometryProcessor textures as a dynamic state array", |
| fDynamicStateArrayGeometryProcessorTextureSupport); |
| writer->appendBool("Use draws for partial clears", fPerformPartialClearsAsDraws); |
| writer->appendBool("Use draws for color clears", fPerformColorClearsAsDraws); |
| writer->appendBool("Avoid Large IndexBuffer Draws", fAvoidLargeIndexBufferDraws); |
| writer->appendBool("Use draws for stencil clip clears", fPerformStencilClearsAsDraws); |
| writer->appendBool("Supports transfers from buffers to textures", |
| fTransferFromBufferToTextureSupport); |
| writer->appendBool("Supports transfers from textures to buffers", |
| fTransferFromSurfaceToBufferSupport); |
| writer->appendBool("Write pixels row bytes support", fWritePixelsRowBytesSupport); |
| writer->appendBool("Read pixels row bytes support", fReadPixelsRowBytesSupport); |
| writer->appendBool("Disable msaa clip mask atlas on current driver [workaround]", |
| fDriverDisableMSAAClipAtlas); |
| writer->appendBool("Disable GrTessellationPathRenderer current driver [workaround]", |
| fDisableTessellationPathRenderer); |
| writer->appendBool("Clamp-to-border", fClampToBorderSupport); |
| |
| writer->appendBool("Prefer VRAM Use over flushes [workaround]", fPreferVRAMUseOverFlushes); |
| writer->appendBool("Avoid stencil buffers [workaround]", fAvoidStencilBuffers); |
| writer->appendBool("Avoid writePixels fast path [workaround]", fAvoidWritePixelsFastPath); |
| writer->appendBool("Requires manual FB barrier after tessellated stencilDraw [workaround]", |
| fRequiresManualFBBarrierAfterTessellatedStencilDraw); |
| writer->appendBool("Native draw indexed indirect is broken [workaround]", |
| fNativeDrawIndexedIndirectIsBroken); |
| |
| if (this->advancedBlendEquationSupport()) { |
| writer->appendHexU32("Advanced Blend Equation Disable Flags", fAdvBlendEqDisableFlags); |
| } |
| |
| writer->appendS32("Max Vertex Attributes", fMaxVertexAttributes); |
| writer->appendS32("Max Texture Size", fMaxTextureSize); |
| writer->appendS32("Max Render Target Size", fMaxRenderTargetSize); |
| writer->appendS32("Max Preferred Render Target Size", fMaxPreferredRenderTargetSize); |
| writer->appendS32("Max Window Rectangles", fMaxWindowRectangles); |
| writer->appendS32("Preferred Sample Count for Internal MSAA and Mixed Samples", |
| fInternalMultisampleCount); |
| |
| static const char* kBlendEquationSupportNames[] = { |
| "Basic", |
| "Advanced", |
| "Advanced Coherent", |
| }; |
| static_assert(0 == kBasic_BlendEquationSupport); |
| static_assert(1 == kAdvanced_BlendEquationSupport); |
| static_assert(2 == kAdvancedCoherent_BlendEquationSupport); |
| static_assert(SK_ARRAY_COUNT(kBlendEquationSupportNames) == kLast_BlendEquationSupport + 1); |
| |
| writer->appendString("Blend Equation Support", |
| kBlendEquationSupportNames[fBlendEquationSupport]); |
| writer->appendString("Map Buffer Support", map_flags_to_string(fMapBufferFlags).c_str()); |
| |
| this->onDumpJSON(writer); |
| |
| writer->appendName("shaderCaps"); |
| this->shaderCaps()->dumpJSON(writer); |
| |
| writer->endObject(); |
| } |
| #else |
| void GrCaps::dumpJSON(SkJSONWriter* writer) const { } |
| #endif |
| |
| bool GrCaps::surfaceSupportsWritePixels(const GrSurface* surface) const { |
| return surface->readOnly() ? false : this->onSurfaceSupportsWritePixels(surface); |
| } |
| |
| bool GrCaps::canCopySurface(const GrSurfaceProxy* dst, const GrSurfaceProxy* src, |
| const SkIRect& srcRect, const SkIPoint& dstPoint) const { |
| if (dst->readOnly()) { |
| return false; |
| } |
| |
| if (dst->backendFormat() != src->backendFormat()) { |
| return false; |
| } |
| return this->onCanCopySurface(dst, src, srcRect, dstPoint); |
| } |
| |
| bool GrCaps::validateSurfaceParams(const SkISize& dimensions, const GrBackendFormat& format, |
| GrRenderable renderable, int renderTargetSampleCnt, |
| GrMipmapped mipped) const { |
| if (!this->isFormatTexturable(format)) { |
| return false; |
| } |
| |
| if (GrMipmapped::kYes == mipped && !this->mipmapSupport()) { |
| return false; |
| } |
| |
| if (dimensions.width() < 1 || dimensions.height() < 1) { |
| return false; |
| } |
| |
| if (renderable == GrRenderable::kYes) { |
| if (!this->isFormatRenderable(format, renderTargetSampleCnt)) { |
| return false; |
| } |
| int maxRTSize = this->maxRenderTargetSize(); |
| if (dimensions.width() > maxRTSize || dimensions.height() > maxRTSize) { |
| return false; |
| } |
| } else { |
| // We currently do not support multisampled textures |
| if (renderTargetSampleCnt != 1) { |
| return false; |
| } |
| int maxSize = this->maxTextureSize(); |
| if (dimensions.width() > maxSize || dimensions.height() > maxSize) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| GrCaps::SupportedRead GrCaps::supportedReadPixelsColorType(GrColorType srcColorType, |
| const GrBackendFormat& srcFormat, |
| GrColorType dstColorType) const { |
| SupportedRead read = this->onSupportedReadPixelsColorType(srcColorType, srcFormat, |
| dstColorType); |
| |
| // There are known problems with 24 vs 32 bit BPP with this color type. Just fail for now if |
| // using a transfer buffer. |
| if (GrColorType::kRGB_888x == read.fColorType) { |
| read.fOffsetAlignmentForTransferBuffer = 0; |
| } |
| // It's very convenient to access 1 byte-per-channel 32 bit color types as uint32_t on the CPU. |
| // Make those aligned reads out of the buffer even if the underlying API doesn't require it. |
| auto channelFlags = GrColorTypeChannelFlags(read.fColorType); |
| if ((channelFlags == kRGBA_SkColorChannelFlags || channelFlags == kRGB_SkColorChannelFlags || |
| channelFlags == kAlpha_SkColorChannelFlag || channelFlags == kGray_SkColorChannelFlag) && |
| GrColorTypeBytesPerPixel(read.fColorType) == 4) { |
| switch (read.fOffsetAlignmentForTransferBuffer & 0b11) { |
| // offset alignment already a multiple of 4 |
| case 0: |
| break; |
| // offset alignment is a multiple of 2 but not 4. |
| case 2: |
| read.fOffsetAlignmentForTransferBuffer *= 2; |
| break; |
| // offset alignment is not a multiple of 2. |
| default: |
| read.fOffsetAlignmentForTransferBuffer *= 4; |
| break; |
| } |
| } |
| return read; |
| } |
| |
| GrBackendFormat GrCaps::getDefaultBackendFormat(GrColorType colorType, |
| GrRenderable renderable) const { |
| // Unknown color types are always an invalid format, so early out before calling virtual. |
| if (colorType == GrColorType::kUnknown) { |
| return {}; |
| } |
| |
| auto format = this->onGetDefaultBackendFormat(colorType); |
| if (!this->isFormatTexturable(format)) { |
| return {}; |
| } |
| if (!this->areColorTypeAndFormatCompatible(colorType, format)) { |
| return {}; |
| } |
| // Currently we require that it be possible to write pixels into the "default" format. Perhaps, |
| // that could be a separate requirement from the caller. It seems less necessary if |
| // renderability was requested. |
| if (this->supportedWritePixelsColorType(colorType, format, colorType).fColorType == |
| GrColorType::kUnknown) { |
| return {}; |
| } |
| if (renderable == GrRenderable::kYes && |
| !this->isFormatAsColorTypeRenderable(colorType, format)) { |
| return {}; |
| } |
| return format; |
| } |
| |
| bool GrCaps::areColorTypeAndFormatCompatible(GrColorType grCT, |
| const GrBackendFormat& format) const { |
| if (GrColorType::kUnknown == grCT) { |
| return false; |
| } |
| |
| SkImage::CompressionType compression = GrBackendFormatToCompressionType(format); |
| if (compression != SkImage::CompressionType::kNone) { |
| return grCT == (SkCompressionTypeIsOpaque(compression) ? GrColorType::kRGB_888x |
| : GrColorType::kRGBA_8888); |
| } |
| |
| return this->onAreColorTypeAndFormatCompatible(grCT, format); |
| } |
| |
| GrSwizzle GrCaps::getReadSwizzle(const GrBackendFormat& format, GrColorType colorType) const { |
| SkImage::CompressionType compression = GrBackendFormatToCompressionType(format); |
| if (compression != SkImage::CompressionType::kNone) { |
| if (colorType == GrColorType::kRGB_888x || colorType == GrColorType::kRGBA_8888) { |
| return GrSwizzle::RGBA(); |
| } |
| SkDEBUGFAILF("Illegal color type (%d) and compressed format (%d) combination.", colorType, |
| compression); |
| return {}; |
| } |
| |
| return this->onGetReadSwizzle(format, colorType); |
| } |
| |
| bool GrCaps::isFormatCompressed(const GrBackendFormat& format) const { |
| return GrBackendFormatToCompressionType(format) != SkImage::CompressionType::kNone; |
| } |
| |
| GrDstSampleType GrCaps::getDstSampleTypeForProxy(const GrRenderTargetProxy* rt) const { |
| SkASSERT(rt); |
| if (this->textureBarrierSupport() && !rt->requiresManualMSAAResolve()) { |
| return this->onGetDstSampleTypeForProxy(rt); |
| } |
| return GrDstSampleType::kAsTextureCopy; |
| } |
