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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 "GrSimpleMeshDrawOpHelper.h"
#include "GrAppliedClip.h"
#include "GrProcessorSet.h"
#include "GrRect.h"
#include "GrUserStencilSettings.h"
GrSimpleMeshDrawOpHelper::GrSimpleMeshDrawOpHelper(const MakeArgs& args, GrAAType aaType,
Flags flags)
: fProcessors(args.fProcessorSet)
, fPipelineFlags(0)
, fAAType((int)aaType)
, fRequiresDstTexture(false)
, fUsesLocalCoords(false)
, fCompatibleWithAlphaAsCoveage(false) {
SkDEBUGCODE(fDidAnalysis = false);
SkDEBUGCODE(fMadePipeline = false);
if (GrAATypeIsHW(aaType)) {
fPipelineFlags |= GrPipeline::kHWAntialias_Flag;
}
if (flags & Flags::kSnapVerticesToPixelCenters) {
fPipelineFlags |= GrPipeline::kSnapVerticesToPixelCenters_Flag;
}
}
GrSimpleMeshDrawOpHelper::~GrSimpleMeshDrawOpHelper() {
if (fProcessors) {
fProcessors->~GrProcessorSet();
}
}
GrDrawOp::FixedFunctionFlags GrSimpleMeshDrawOpHelper::fixedFunctionFlags() const {
return GrAATypeIsHW((this->aaType())) ? GrDrawOp::FixedFunctionFlags::kUsesHWAA
: GrDrawOp::FixedFunctionFlags::kNone;
}
bool GrSimpleMeshDrawOpHelper::isCompatible(const GrSimpleMeshDrawOpHelper& that,
const GrCaps& caps, const SkRect& thisBounds,
const SkRect& thatBounds) const {
if (SkToBool(fProcessors) != SkToBool(that.fProcessors)) {
return false;
}
if (fProcessors) {
if (*fProcessors != *that.fProcessors) {
return false;
}
if (fRequiresDstTexture ||
(fProcessors->xferProcessor() && fProcessors->xferProcessor()->xferBarrierType(caps))) {
if (GrRectsTouchOrOverlap(thisBounds, thatBounds)) {
return false;
}
}
}
bool result = fPipelineFlags == that.fPipelineFlags && fAAType == that.fAAType;
SkASSERT(!result || fCompatibleWithAlphaAsCoveage == that.fCompatibleWithAlphaAsCoveage);
SkASSERT(!result || fUsesLocalCoords == that.fUsesLocalCoords);
return result;
}
GrDrawOp::RequiresDstTexture GrSimpleMeshDrawOpHelper::xpRequiresDstTexture(
const GrCaps& caps, const GrAppliedClip* clip, 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;
}
bool isMixedSamples = this->aaType() == GrAAType::kMixedSamples;
GrColor overrideColor;
analysis = fProcessors->finalize(*geometryColor, coverage, clip, isMixedSamples, caps,
&overrideColor);
if (analysis.inputColorIsOverridden()) {
*geometryColor = overrideColor;
}
} else {
analysis = GrProcessorSet::EmptySetAnalysis();
}
fRequiresDstTexture = analysis.requiresDstTexture();
fUsesLocalCoords = analysis.usesLocalCoords();
fCompatibleWithAlphaAsCoveage = analysis.isCompatibleWithCoverageAsAlpha();
return analysis.requiresDstTexture() ? GrDrawOp::RequiresDstTexture::kYes
: GrDrawOp::RequiresDstTexture::kNo;
}
GrDrawOp::RequiresDstTexture GrSimpleMeshDrawOpHelper::xpRequiresDstTexture(
const GrCaps& caps, const GrAppliedClip* clip, GrProcessorAnalysisCoverage geometryCoverage,
GrColor* geometryColor) {
GrProcessorAnalysisColor color = *geometryColor;
auto result = this->xpRequiresDstTexture(caps, clip, geometryCoverage, &color);
color.isConstant(geometryColor);
return result;
}
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;
case GrAAType::kMixedSamples:
result.append(" mixed samples\n");
break;
}
result.append(GrPipeline::DumpFlags(fPipelineFlags));
return result;
}
GrPipeline::InitArgs GrSimpleMeshDrawOpHelper::pipelineInitArgs(
GrMeshDrawOp::Target* target) const {
GrPipeline::InitArgs args;
args.fFlags = this->pipelineFlags();
args.fProxy = target->proxy();
args.fDstProxy = target->dstProxy();
args.fCaps = &target->caps();
args.fResourceProvider = target->resourceProvider();
return args;
}
auto GrSimpleMeshDrawOpHelper::internalMakePipeline(GrMeshDrawOp::Target* target,
const GrPipeline::InitArgs& args)
-> PipelineAndFixedDynamicState {
// A caller really should only call this once as the processor set and applied clip get
// moved into the GrPipeline.
SkASSERT(!fMadePipeline);
SkDEBUGCODE(fMadePipeline = true);
auto clip = target->detachAppliedClip();
auto* dynamicState = target->allocFixedDynamicState(clip.scissorState().rect());
if (fProcessors) {
return {target->allocPipeline(args, std::move(*fProcessors), std::move(clip)),
dynamicState};
} else {
return {target->allocPipeline(args, GrProcessorSet::MakeEmptySet(), std::move(clip)),
dynamicState};
}
}
GrSimpleMeshDrawOpHelperWithStencil::GrSimpleMeshDrawOpHelperWithStencil(
const MakeArgs& args, GrAAType aaType, const GrUserStencilSettings* stencilSettings,
Flags flags)
: INHERITED(args, aaType, flags)
, 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;
}
bool GrSimpleMeshDrawOpHelperWithStencil::isCompatible(
const GrSimpleMeshDrawOpHelperWithStencil& that, const GrCaps& caps,
const SkRect& thisBounds, const SkRect& thatBounds) const {
return INHERITED::isCompatible(that, caps, thisBounds, thatBounds) &&
fStencilSettings == that.fStencilSettings;
}
auto GrSimpleMeshDrawOpHelperWithStencil::makePipeline(GrMeshDrawOp::Target* target)
-> PipelineAndFixedDynamicState {
auto args = INHERITED::pipelineInitArgs(target);
args.fUserStencil = fStencilSettings;
return this->internalMakePipeline(target, args);
}
SkString GrSimpleMeshDrawOpHelperWithStencil::dumpInfo() const {
SkString result = INHERITED::dumpInfo();
result.appendf("Stencil settings: %s\n", (fStencilSettings ? "yes" : "no"));
return result;
}
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