/* * 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 "GrPipeline.h" #include "GrCaps.h" #include "GrDrawContext.h" #include "GrDrawTarget.h" #include "GrGpu.h" #include "GrPipelineBuilder.h" #include "GrProcOptInfo.h" #include "GrRenderTargetPriv.h" #include "GrXferProcessor.h" #include "batches/GrBatch.h" GrPipeline* GrPipeline::CreateAt(void* memory, const CreateArgs& args, GrXPOverridesForBatch* overrides) { const GrPipelineBuilder& builder = *args.fPipelineBuilder; GrPipeline* pipeline = new (memory) GrPipeline; GrRenderTarget* rt = args.fDrawContext->accessRenderTarget(); pipeline->fRenderTarget.reset(rt); SkASSERT(pipeline->fRenderTarget); pipeline->fScissorState = *args.fScissor; pipeline->fWindowRectsState = *args.fWindowRectsState; if (builder.hasUserStencilSettings() || args.fHasStencilClip) { const GrRenderTargetPriv& rtPriv = rt->renderTargetPriv(); pipeline->fStencilSettings.reset(*builder.getUserStencil(), args.fHasStencilClip, rtPriv.numStencilBits()); SkASSERT(!pipeline->fStencilSettings.usesWrapOp() || args.fCaps->stencilWrapOpsSupport()); } pipeline->fDrawFace = builder.getDrawFace(); pipeline->fFlags = 0; if (builder.isHWAntialias()) { pipeline->fFlags |= kHWAA_Flag; } if (builder.snapVerticesToPixelCenters()) { pipeline->fFlags |= kSnapVertices_Flag; } if (builder.getDisableOutputConversionToSRGB()) { pipeline->fFlags |= kDisableOutputConversionToSRGB_Flag; } if (builder.getAllowSRGBInputs()) { pipeline->fFlags |= kAllowSRGBInputs_Flag; } if (builder.getUsesDistanceVectorField()) { pipeline->fFlags |= kUsesDistanceVectorField_Flag; } if (args.fHasStencilClip) { pipeline->fFlags |= kHasStencilClip_Flag; } // Create XferProcessor from DS's XPFactory bool hasMixedSamples = args.fDrawContext->hasMixedSamples() && (builder.isHWAntialias() || !pipeline->fStencilSettings.isDisabled()); const GrXPFactory* xpFactory = builder.getXPFactory(); SkAutoTUnref xferProcessor; if (xpFactory) { xferProcessor.reset(xpFactory->createXferProcessor(args.fOpts, hasMixedSamples, &args.fDstTexture, *args.fCaps)); if (!xferProcessor) { pipeline->~GrPipeline(); return nullptr; } } else { // This may return nullptr in the common case of src-over implemented using hw blending. xferProcessor.reset(GrPorterDuffXPFactory::CreateSrcOverXferProcessor( *args.fCaps, args.fOpts, hasMixedSamples, &args.fDstTexture)); } GrColor overrideColor = GrColor_ILLEGAL; if (args.fOpts.fColorPOI.firstEffectiveProcessorIndex() != 0) { overrideColor = args.fOpts.fColorPOI.inputColorToFirstEffectiveProccesor(); } GrXferProcessor::OptFlags optFlags = GrXferProcessor::kNone_OptFlags; const GrXferProcessor* xpForOpts = xferProcessor ? xferProcessor.get() : &GrPorterDuffXPFactory::SimpleSrcOverXP(); optFlags = xpForOpts->getOptimizations(args.fOpts, pipeline->fStencilSettings.doesWrite(), &overrideColor, *args.fCaps); // When path rendering the stencil settings are not always set on the GrPipelineBuilder // so we must check the draw type. In cases where we will skip drawing we simply return a // null GrPipeline. if (GrXferProcessor::kSkipDraw_OptFlag & optFlags) { pipeline->~GrPipeline(); return nullptr; } // No need to have an override color if it isn't even going to be used. if (SkToBool(GrXferProcessor::kIgnoreColor_OptFlag & optFlags)) { overrideColor = GrColor_ILLEGAL; } pipeline->fXferProcessor.reset(xferProcessor); int firstColorProcessorIdx = args.fOpts.fColorPOI.firstEffectiveProcessorIndex(); // TODO: Once we can handle single or four channel input into coverage GrFragmentProcessors // then we can use GrPipelineBuilder's coverageProcInfo (like color above) to set this initial // information. int firstCoverageProcessorIdx = 0; pipeline->adjustProgramFromOptimizations(builder, optFlags, args.fOpts.fColorPOI, args.fOpts.fCoveragePOI, &firstColorProcessorIdx, &firstCoverageProcessorIdx); bool usesLocalCoords = false; // Copy GrFragmentProcessors from GrPipelineBuilder to Pipeline pipeline->fNumColorProcessors = builder.numColorFragmentProcessors() - firstColorProcessorIdx; int numTotalProcessors = pipeline->fNumColorProcessors + builder.numCoverageFragmentProcessors() - firstCoverageProcessorIdx; pipeline->fFragmentProcessors.reset(numTotalProcessors); int currFPIdx = 0; for (int i = firstColorProcessorIdx; i < builder.numColorFragmentProcessors(); ++i, ++currFPIdx) { const GrFragmentProcessor* fp = builder.getColorFragmentProcessor(i); pipeline->fFragmentProcessors[currFPIdx].reset(fp); usesLocalCoords = usesLocalCoords || fp->usesLocalCoords(); } for (int i = firstCoverageProcessorIdx; i < builder.numCoverageFragmentProcessors(); ++i, ++currFPIdx) { const GrFragmentProcessor* fp = builder.getCoverageFragmentProcessor(i); pipeline->fFragmentProcessors[currFPIdx].reset(fp); usesLocalCoords = usesLocalCoords || fp->usesLocalCoords(); } // Setup info we need to pass to GrPrimitiveProcessors that are used with this GrPipeline. overrides->fFlags = 0; if (!SkToBool(optFlags & GrXferProcessor::kIgnoreColor_OptFlag)) { overrides->fFlags |= GrXPOverridesForBatch::kReadsColor_Flag; } if (GrColor_ILLEGAL != overrideColor) { overrides->fFlags |= GrXPOverridesForBatch::kUseOverrideColor_Flag; overrides->fOverrideColor = overrideColor; } if (!SkToBool(optFlags & GrXferProcessor::kIgnoreCoverage_OptFlag)) { overrides->fFlags |= GrXPOverridesForBatch::kReadsCoverage_Flag; } if (usesLocalCoords) { overrides->fFlags |= GrXPOverridesForBatch::kReadsLocalCoords_Flag; } if (SkToBool(optFlags & GrXferProcessor::kCanTweakAlphaForCoverage_OptFlag)) { overrides->fFlags |= GrXPOverridesForBatch::kCanTweakAlphaForCoverage_Flag; } GrXPFactory::InvariantBlendedColor blendedColor; if (xpFactory) { xpFactory->getInvariantBlendedColor(args.fOpts.fColorPOI, &blendedColor); } else { GrPorterDuffXPFactory::SrcOverInvariantBlendedColor(args.fOpts.fColorPOI.color(), args.fOpts.fColorPOI.validFlags(), args.fOpts.fColorPOI.isOpaque(), &blendedColor); } if (blendedColor.fWillBlendWithDst) { overrides->fFlags |= GrXPOverridesForBatch::kWillColorBlendWithDst_Flag; } return pipeline; } static void add_dependencies_for_processor(const GrFragmentProcessor* proc, GrRenderTarget* rt) { GrFragmentProcessor::TextureAccessIter iter(proc); while (const GrTextureAccess* access = iter.next()) { SkASSERT(rt->getLastDrawTarget()); rt->getLastDrawTarget()->addDependency(access->getTexture()); } } void GrPipeline::addDependenciesTo(GrRenderTarget* rt) const { for (int i = 0; i < fFragmentProcessors.count(); ++i) { add_dependencies_for_processor(fFragmentProcessors[i].get(), rt); } const GrXferProcessor& xfer = this->getXferProcessor(); for (int i = 0; i < xfer.numTextures(); ++i) { GrTexture* texture = xfer.textureAccess(i).getTexture(); SkASSERT(rt->getLastDrawTarget()); rt->getLastDrawTarget()->addDependency(texture); } } void GrPipeline::adjustProgramFromOptimizations(const GrPipelineBuilder& pipelineBuilder, GrXferProcessor::OptFlags flags, const GrProcOptInfo& colorPOI, const GrProcOptInfo& coveragePOI, int* firstColorProcessorIdx, int* firstCoverageProcessorIdx) { fIgnoresCoverage = SkToBool(flags & GrXferProcessor::kIgnoreCoverage_OptFlag); if ((flags & GrXferProcessor::kIgnoreColor_OptFlag) || (flags & GrXferProcessor::kOverrideColor_OptFlag)) { *firstColorProcessorIdx = pipelineBuilder.numColorFragmentProcessors(); } if (flags & GrXferProcessor::kIgnoreCoverage_OptFlag) { *firstCoverageProcessorIdx = pipelineBuilder.numCoverageFragmentProcessors(); } } //////////////////////////////////////////////////////////////////////////////// bool GrPipeline::AreEqual(const GrPipeline& a, const GrPipeline& b) { SkASSERT(&a != &b); if (a.getRenderTarget() != b.getRenderTarget() || a.fFragmentProcessors.count() != b.fFragmentProcessors.count() || a.fNumColorProcessors != b.fNumColorProcessors || a.fScissorState != b.fScissorState || !a.fWindowRectsState.cheapEqualTo(b.fWindowRectsState) || a.fFlags != b.fFlags || a.fStencilSettings != b.fStencilSettings || a.fDrawFace != b.fDrawFace || a.fIgnoresCoverage != b.fIgnoresCoverage) { return false; } // Most of the time both are nullptr if (a.fXferProcessor.get() || b.fXferProcessor.get()) { if (!a.getXferProcessor().isEqual(b.getXferProcessor())) { return false; } } for (int i = 0; i < a.numFragmentProcessors(); i++) { if (!a.getFragmentProcessor(i).isEqual(b.getFragmentProcessor(i))) { return false; } } return true; }