| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "src/core/SkBlendModePriv.h" |
| #include "src/gpu/GrAppliedClip.h" |
| #include "src/gpu/GrCaps.h" |
| #include "src/gpu/GrProcessorSet.h" |
| #include "src/gpu/GrUserStencilSettings.h" |
| #include "src/gpu/GrXferProcessor.h" |
| #include "src/gpu/effects/GrPorterDuffXferProcessor.h" |
| |
| const GrProcessorSet& GrProcessorSet::EmptySet() { |
| static GrProcessorSet gEmpty(GrProcessorSet::Empty::kEmpty); |
| return gEmpty; |
| } |
| |
| GrProcessorSet GrProcessorSet::MakeEmptySet() { |
| return GrProcessorSet(GrProcessorSet::Empty::kEmpty); |
| } |
| |
| GrProcessorSet::GrProcessorSet(GrPaint&& paint) : fXP(paint.getXPFactory()) { |
| fColorFragmentProcessor = std::move(paint.fColorFragmentProcessor); |
| fCoverageFragmentProcessor = std::move(paint.fCoverageFragmentProcessor); |
| |
| SkDEBUGCODE(paint.fAlive = false;) |
| } |
| |
| GrProcessorSet::GrProcessorSet(SkBlendMode mode) : fXP(SkBlendMode_AsXPFactory(mode)) {} |
| |
| GrProcessorSet::GrProcessorSet(std::unique_ptr<GrFragmentProcessor> colorFP) |
| : fXP((const GrXPFactory*)nullptr) { |
| SkASSERT(colorFP); |
| fColorFragmentProcessor = std::move(colorFP); |
| } |
| |
| GrProcessorSet::GrProcessorSet(GrProcessorSet&& that) |
| : fColorFragmentProcessor(std::move(that.fColorFragmentProcessor)) |
| , fCoverageFragmentProcessor(std::move(that.fCoverageFragmentProcessor)) |
| , fXP(std::move(that.fXP)) |
| , fFlags(that.fFlags) {} |
| |
| GrProcessorSet::~GrProcessorSet() { |
| if (this->isFinalized() && this->xferProcessor()) { |
| this->xferProcessor()->unref(); |
| } |
| } |
| |
| #if GR_TEST_UTILS |
| SkString GrProcessorSet::dumpProcessors() const { |
| SkString result; |
| if (this->hasColorFragmentProcessor()) { |
| result.append("Color Fragment Processor:\n"); |
| result += this->colorFragmentProcessor()->dumpTreeInfo(); |
| } else { |
| result.append("No color fragment processor.\n"); |
| } |
| if (this->hasCoverageFragmentProcessor()) { |
| result.append("Coverage Fragment Processor:\n"); |
| result += this->coverageFragmentProcessor()->dumpTreeInfo(); |
| } else { |
| result.append("No coverage fragment processors.\n"); |
| } |
| if (this->isFinalized()) { |
| result.append("Xfer Processor: "); |
| if (this->xferProcessor()) { |
| result.appendf("%s\n", this->xferProcessor()->name()); |
| } else { |
| result.append("SrcOver\n"); |
| } |
| } else { |
| result.append("XP Factory dumping not implemented.\n"); |
| } |
| return result; |
| } |
| #endif |
| |
| bool GrProcessorSet::operator==(const GrProcessorSet& that) const { |
| SkASSERT(this->isFinalized()); |
| SkASSERT(that.isFinalized()); |
| if (((fFlags ^ that.fFlags) & ~kFinalized_Flag) || |
| this->hasColorFragmentProcessor() != that.hasColorFragmentProcessor() || |
| this->hasCoverageFragmentProcessor() != that.hasCoverageFragmentProcessor()) { |
| return false; |
| } |
| |
| if (this->hasColorFragmentProcessor()) { |
| if (!colorFragmentProcessor()->isEqual(*that.colorFragmentProcessor())) { |
| return false; |
| } |
| } |
| |
| if (this->hasCoverageFragmentProcessor()) { |
| if (!coverageFragmentProcessor()->isEqual(*that.coverageFragmentProcessor())) { |
| return false; |
| } |
| } |
| |
| // Most of the time both of these are null |
| if (!this->xferProcessor() && !that.xferProcessor()) { |
| return true; |
| } |
| const GrXferProcessor& thisXP = this->xferProcessor() |
| ? *this->xferProcessor() |
| : GrPorterDuffXPFactory::SimpleSrcOverXP(); |
| const GrXferProcessor& thatXP = that.xferProcessor() |
| ? *that.xferProcessor() |
| : GrPorterDuffXPFactory::SimpleSrcOverXP(); |
| return thisXP.isEqual(thatXP); |
| } |
| |
| GrProcessorSet::Analysis GrProcessorSet::finalize( |
| const GrProcessorAnalysisColor& colorInput, const GrProcessorAnalysisCoverage coverageInput, |
| const GrAppliedClip* clip, const GrUserStencilSettings* userStencil, |
| const GrCaps& caps, GrClampType clampType, SkPMColor4f* overrideInputColor) { |
| SkASSERT(!this->isFinalized()); |
| |
| GrProcessorSet::Analysis analysis; |
| analysis.fCompatibleWithCoverageAsAlpha = GrProcessorAnalysisCoverage::kLCD != coverageInput; |
| |
| GrColorFragmentProcessorAnalysis colorAnalysis(colorInput, &fColorFragmentProcessor, |
| this->hasColorFragmentProcessor() ? 1 : 0); |
| bool hasCoverageFP = this->hasCoverageFragmentProcessor(); |
| bool coverageUsesLocalCoords = false; |
| if (hasCoverageFP) { |
| if (!fCoverageFragmentProcessor->compatibleWithCoverageAsAlpha()) { |
| analysis.fCompatibleWithCoverageAsAlpha = false; |
| } |
| coverageUsesLocalCoords |= fCoverageFragmentProcessor->usesVaryingCoords(); |
| } |
| if (clip && clip->hasCoverageFragmentProcessor()) { |
| hasCoverageFP = true; |
| const GrFragmentProcessor* clipFP = clip->coverageFragmentProcessor(); |
| analysis.fCompatibleWithCoverageAsAlpha &= clipFP->compatibleWithCoverageAsAlpha(); |
| coverageUsesLocalCoords |= clipFP->usesVaryingCoords(); |
| } |
| int colorFPsToEliminate = colorAnalysis.initialProcessorsToEliminate(overrideInputColor); |
| analysis.fInputColorType = static_cast<Analysis::PackedInputColorType>( |
| colorFPsToEliminate ? Analysis::kOverridden_InputColorType |
| : Analysis::kOriginal_InputColorType); |
| |
| GrProcessorAnalysisCoverage outputCoverage; |
| if (GrProcessorAnalysisCoverage::kLCD == coverageInput) { |
| outputCoverage = GrProcessorAnalysisCoverage::kLCD; |
| } else if (hasCoverageFP || GrProcessorAnalysisCoverage::kSingleChannel == coverageInput) { |
| outputCoverage = GrProcessorAnalysisCoverage::kSingleChannel; |
| } else { |
| outputCoverage = GrProcessorAnalysisCoverage::kNone; |
| } |
| |
| GrXPFactory::AnalysisProperties props = GrXPFactory::GetAnalysisProperties( |
| this->xpFactory(), colorAnalysis.outputColor(), outputCoverage, caps, clampType); |
| analysis.fRequiresDstTexture = (props & GrXPFactory::AnalysisProperties::kRequiresDstTexture) || |
| colorAnalysis.requiresDstTexture(caps); |
| analysis.fCompatibleWithCoverageAsAlpha &= |
| SkToBool(props & GrXPFactory::AnalysisProperties::kCompatibleWithCoverageAsAlpha); |
| analysis.fRequiresNonOverlappingDraws = |
| (props & GrXPFactory::AnalysisProperties::kRequiresNonOverlappingDraws) || |
| analysis.fRequiresDstTexture; |
| analysis.fUsesNonCoherentHWBlending = |
| SkToBool(props & GrXPFactory::AnalysisProperties::kUsesNonCoherentHWBlending); |
| analysis.fUnaffectedByDstValue = |
| SkToBool(props & GrXPFactory::AnalysisProperties::kUnaffectedByDstValue); |
| if (props & GrXPFactory::AnalysisProperties::kIgnoresInputColor) { |
| colorFPsToEliminate = this->hasColorFragmentProcessor() ? 1 : 0; |
| analysis.fInputColorType = |
| static_cast<Analysis::PackedInputColorType>(Analysis::kIgnored_InputColorType); |
| analysis.fUsesLocalCoords = coverageUsesLocalCoords; |
| } else { |
| analysis.fCompatibleWithCoverageAsAlpha &= |
| colorAnalysis.allProcessorsCompatibleWithCoverageAsAlpha(); |
| analysis.fUsesLocalCoords = coverageUsesLocalCoords || colorAnalysis.usesLocalCoords(); |
| } |
| if (colorFPsToEliminate) { |
| SkASSERT(colorFPsToEliminate == 1); |
| fColorFragmentProcessor = nullptr; |
| } |
| analysis.fHasColorFragmentProcessor = this->hasColorFragmentProcessor(); |
| |
| auto xp = GrXPFactory::MakeXferProcessor(this->xpFactory(), colorAnalysis.outputColor(), |
| outputCoverage, caps, clampType); |
| fXP.fProcessor = xp.release(); |
| |
| fFlags |= kFinalized_Flag; |
| analysis.fIsInitialized = true; |
| #ifdef SK_DEBUG |
| bool hasXferBarrier = |
| fXP.fProcessor && |
| GrXferBarrierType::kNone_GrXferBarrierType != fXP.fProcessor->xferBarrierType(caps); |
| bool needsNonOverlappingDraws = analysis.fRequiresDstTexture || hasXferBarrier; |
| SkASSERT(analysis.fRequiresNonOverlappingDraws == needsNonOverlappingDraws); |
| #endif |
| return analysis; |
| } |
| |
| void GrProcessorSet::visitProxies(const GrVisitProxyFunc& func) const { |
| if (this->hasColorFragmentProcessor()) { |
| fColorFragmentProcessor->visitProxies(func); |
| } |
| if (this->hasCoverageFragmentProcessor()) { |
| fCoverageFragmentProcessor->visitProxies(func); |
| } |
| } |