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/*
* 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/gpu/GrAppliedClip.h"
#include "src/gpu/GrProcessorSet.h"
#include "src/gpu/GrUserStencilSettings.h"
#include "src/gpu/SkGr.h"
#include "src/gpu/geometry/GrRect.h"
#include "src/gpu/ops/GrSimpleMeshDrawOpHelper.h"
GrSimpleMeshDrawOpHelper::GrSimpleMeshDrawOpHelper(const MakeArgs& args, GrAAType aaType,
InputFlags inputFlags)
: fProcessors(args.fProcessorSet)
, fPipelineFlags((GrPipeline::InputFlags)inputFlags)
, fAAType((int)aaType)
, fUsesLocalCoords(false)
, fCompatibleWithCoverageAsAlpha(false) {
SkDEBUGCODE(fDidAnalysis = false);
SkDEBUGCODE(fMadePipeline = false);
if (GrAATypeIsHW(aaType)) {
fPipelineFlags |= GrPipeline::InputFlags::kHWAntialias;
}
}
GrSimpleMeshDrawOpHelper::~GrSimpleMeshDrawOpHelper() {
if (fProcessors) {
fProcessors->~GrProcessorSet();
}
}
GrDrawOp::FixedFunctionFlags GrSimpleMeshDrawOpHelper::fixedFunctionFlags() const {
return GrAATypeIsHW((this->aaType())) ? GrDrawOp::FixedFunctionFlags::kUsesHWAA
: GrDrawOp::FixedFunctionFlags::kNone;
}
static bool none_as_coverage_aa_compatible(GrAAType aa1, GrAAType aa2) {
return (aa1 == GrAAType::kNone && aa2 == GrAAType::kCoverage) ||
(aa1 == GrAAType::kCoverage && aa2 == GrAAType::kNone);
}
bool GrSimpleMeshDrawOpHelper::isCompatible(const GrSimpleMeshDrawOpHelper& that,
const GrCaps& caps, const SkRect& thisBounds,
const SkRect& thatBounds, bool noneAsCoverageAA) const {
if (SkToBool(fProcessors) != SkToBool(that.fProcessors)) {
return false;
}
if (fProcessors) {
if (*fProcessors != *that.fProcessors) {
return false;
}
}
bool result = fPipelineFlags == that.fPipelineFlags && (fAAType == that.fAAType ||
(noneAsCoverageAA && none_as_coverage_aa_compatible(this->aaType(), that.aaType())));
SkASSERT(!result || fCompatibleWithCoverageAsAlpha == that.fCompatibleWithCoverageAsAlpha);
SkASSERT(!result || fUsesLocalCoords == that.fUsesLocalCoords);
return result;
}
GrProcessorSet::Analysis GrSimpleMeshDrawOpHelper::finalizeProcessors(
const GrCaps& caps, const GrAppliedClip* clip, bool hasMixedSampledCoverage,
GrClampType clampType, GrProcessorAnalysisCoverage geometryCoverage,
SkPMColor4f* geometryColor, bool* wideColor) {
GrProcessorAnalysisColor color = *geometryColor;
auto result = this->finalizeProcessors(
caps, clip, hasMixedSampledCoverage, clampType, geometryCoverage, &color);
color.isConstant(geometryColor);
if (wideColor) {
*wideColor = SkPMColor4fNeedsWideColor(*geometryColor, clampType, caps);
}
return result;
}
GrProcessorSet::Analysis GrSimpleMeshDrawOpHelper::finalizeProcessors(
const GrCaps& caps, const GrAppliedClip* clip, const GrUserStencilSettings* userStencil,
bool hasMixedSampledCoverage, GrClampType clampType,
GrProcessorAnalysisCoverage geometryCoverage, GrProcessorAnalysisColor* geometryColor) {
SkDEBUGCODE(fDidAnalysis = true);
GrProcessorSet::Analysis analysis;
if (fProcessors) {
GrProcessorAnalysisCoverage coverage = geometryCoverage;
if (GrProcessorAnalysisCoverage::kNone == coverage) {
coverage = clip->numClipCoverageFragmentProcessors()
? GrProcessorAnalysisCoverage::kSingleChannel
: GrProcessorAnalysisCoverage::kNone;
}
SkPMColor4f overrideColor;
analysis = fProcessors->finalize(*geometryColor, coverage, clip, userStencil,
hasMixedSampledCoverage, caps, clampType, &overrideColor);
if (analysis.inputColorIsOverridden()) {
*geometryColor = overrideColor;
}
} else {
analysis = GrProcessorSet::EmptySetAnalysis();
}
fUsesLocalCoords = analysis.usesLocalCoords();
fCompatibleWithCoverageAsAlpha = analysis.isCompatibleWithCoverageAsAlpha();
return analysis;
}
void GrSimpleMeshDrawOpHelper::executeDrawsAndUploads(
const GrOp* op, GrOpFlushState* flushState, const SkRect& chainBounds) {
if (fProcessors) {
flushState->executeDrawsAndUploadsForMeshDrawOp(
op, chainBounds, std::move(*fProcessors), fPipelineFlags);
} else {
flushState->executeDrawsAndUploadsForMeshDrawOp(
op, chainBounds, GrProcessorSet::MakeEmptySet(), fPipelineFlags);
}
}
#ifdef SK_DEBUG
static void dump_pipeline_flags(GrPipeline::InputFlags flags, SkString* result) {
if (GrPipeline::InputFlags::kNone != flags) {
if (flags & GrPipeline::InputFlags::kSnapVerticesToPixelCenters) {
result->append("Snap vertices to pixel center.\n");
}
if (flags & GrPipeline::InputFlags::kHWAntialias) {
result->append("HW Antialiasing enabled.\n");
}
return;
}
result->append("No pipeline flags\n");
}
SkString GrSimpleMeshDrawOpHelper::dumpInfo() const {
const GrProcessorSet& processors = fProcessors ? *fProcessors : GrProcessorSet::EmptySet();
SkString result = processors.dumpProcessors();
result.append("AA Type: ");
switch (this->aaType()) {
case GrAAType::kNone:
result.append(" none\n");
break;
case GrAAType::kCoverage:
result.append(" coverage\n");
break;
case GrAAType::kMSAA:
result.append(" msaa\n");
break;
}
dump_pipeline_flags(fPipelineFlags, &result);
return result;
}
#endif
GrSimpleMeshDrawOpHelperWithStencil::GrSimpleMeshDrawOpHelperWithStencil(
const MakeArgs& args, GrAAType aaType, const GrUserStencilSettings* stencilSettings,
InputFlags inputFlags)
: INHERITED(args, aaType, inputFlags)
, fStencilSettings(stencilSettings ? stencilSettings : &GrUserStencilSettings::kUnused) {}
GrDrawOp::FixedFunctionFlags GrSimpleMeshDrawOpHelperWithStencil::fixedFunctionFlags() const {
GrDrawOp::FixedFunctionFlags flags = INHERITED::fixedFunctionFlags();
if (fStencilSettings != &GrUserStencilSettings::kUnused) {
flags |= GrDrawOp::FixedFunctionFlags::kUsesStencil;
}
return flags;
}
GrProcessorSet::Analysis GrSimpleMeshDrawOpHelperWithStencil::finalizeProcessors(
const GrCaps& caps, const GrAppliedClip* clip, bool hasMixedSampledCoverage,
GrClampType clampType, GrProcessorAnalysisCoverage geometryCoverage,
SkPMColor4f* geometryColor, bool* wideColor) {
GrProcessorAnalysisColor color = *geometryColor;
auto result = this->finalizeProcessors(
caps, clip, hasMixedSampledCoverage, clampType, geometryCoverage, &color);
color.isConstant(geometryColor);
if (wideColor) {
*wideColor = SkPMColor4fNeedsWideColor(*geometryColor, clampType, caps);
}
return result;
}
bool GrSimpleMeshDrawOpHelperWithStencil::isCompatible(
const GrSimpleMeshDrawOpHelperWithStencil& that, const GrCaps& caps,
const SkRect& thisBounds, const SkRect& thatBounds, bool noneAsCoverageAA) const {
return INHERITED::isCompatible(that, caps, thisBounds, thatBounds, noneAsCoverageAA) &&
fStencilSettings == that.fStencilSettings;
}
void GrSimpleMeshDrawOpHelperWithStencil::executeDrawsAndUploads(
const GrOp* op, GrOpFlushState* flushState, const SkRect& chainBounds) {
if (fProcessors) {
flushState->executeDrawsAndUploadsForMeshDrawOp(
op, chainBounds, std::move(*fProcessors), fPipelineFlags, fStencilSettings);
} else {
flushState->executeDrawsAndUploadsForMeshDrawOp(
op, chainBounds, GrProcessorSet::MakeEmptySet(), fPipelineFlags, fStencilSettings);
}
}
#ifdef SK_DEBUG
SkString GrSimpleMeshDrawOpHelperWithStencil::dumpInfo() const {
SkString result = INHERITED::dumpInfo();
result.appendf("Stencil settings: %s\n", (fStencilSettings ? "yes" : "no"));
return result;
}
#endif
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