blob: ea3f0f234fbd3787a1410ec453aa3b1ad71d0292 [file] [log] [blame]
/*
* 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 "GrRenderTargetContext.h"
#include "GrGpu.h"
#include "GrPipelineBuilder.h"
#include "GrProcOptInfo.h"
#include "GrRenderTargetOpList.h"
#include "GrRenderTargetPriv.h"
#include "GrXferProcessor.h"
#include "ops/GrOp.h"
GrPipeline* GrPipeline::CreateAt(void* memory, const CreateArgs& args,
GrPipelineOptimizations* optimizations) {
const GrPipelineBuilder& builder = *args.fPipelineBuilder;
const GrUserStencilSettings* userStencil = builder.getUserStencil();
GrRenderTarget* rt = args.fRenderTargetContext->accessRenderTarget();
if (!rt) {
return nullptr;
}
GrPipeline* pipeline = new (memory) GrPipeline;
pipeline->fRenderTarget.reset(rt);
SkASSERT(pipeline->fRenderTarget);
pipeline->fScissorState = *args.fScissor;
pipeline->fWindowRectsState = *args.fWindowRectsState;
pipeline->fUserStencilSettings = userStencil;
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;
}
if (!userStencil->isDisabled(args.fHasStencilClip)) {
pipeline->fFlags |= kStencilEnabled_Flag;
}
// Create XferProcessor from DS's XPFactory
bool hasMixedSamples = args.fRenderTargetContext->hasMixedSamples() &&
(builder.isHWAntialias() || pipeline->isStencilEnabled());
const GrXPFactory* xpFactory = builder.getXPFactory();
sk_sp<GrXferProcessor> xferProcessor;
if (xpFactory) {
xferProcessor.reset(xpFactory->createXferProcessor(
args.fAnalysis, 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.fAnalysis, hasMixedSamples, &args.fDstTexture));
}
GrColor overrideColor = GrColor_ILLEGAL;
if (args.fAnalysis.fColorPOI.firstEffectiveProcessorIndex() != 0) {
overrideColor = args.fAnalysis.fColorPOI.inputColorToFirstEffectiveProccesor();
}
GrXferProcessor::OptFlags optFlags = GrXferProcessor::kNone_OptFlags;
const GrXferProcessor* xpForOpts = xferProcessor ? xferProcessor.get() :
&GrPorterDuffXPFactory::SimpleSrcOverXP();
optFlags = xpForOpts->getOptimizations(args.fAnalysis,
userStencil->doesWrite(args.fHasStencilClip),
&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.get());
int firstColorProcessorIdx = args.fAnalysis.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;
if ((optFlags & GrXferProcessor::kIgnoreColor_OptFlag) ||
(optFlags & GrXferProcessor::kOverrideColor_OptFlag)) {
firstColorProcessorIdx = builder.numColorFragmentProcessors();
}
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.
optimizations->fFlags = 0;
if (GrColor_ILLEGAL != overrideColor) {
optimizations->fFlags |= GrPipelineOptimizations::kUseOverrideColor_Flag;
optimizations->fOverrideColor = overrideColor;
}
if (usesLocalCoords) {
optimizations->fFlags |= GrPipelineOptimizations::kReadsLocalCoords_Flag;
}
if (SkToBool(optFlags & GrXferProcessor::kCanTweakAlphaForCoverage_OptFlag)) {
optimizations->fFlags |= GrPipelineOptimizations::kCanTweakAlphaForCoverage_Flag;
}
GrXPFactory::InvariantBlendedColor blendedColor;
if (xpFactory) {
xpFactory->getInvariantBlendedColor(args.fAnalysis.fColorPOI, &blendedColor);
} else {
GrPorterDuffXPFactory::SrcOverInvariantBlendedColor(args.fAnalysis.fColorPOI.color(),
args.fAnalysis.fColorPOI.validFlags(),
args.fAnalysis.fColorPOI.isOpaque(),
&blendedColor);
}
if (blendedColor.fWillBlendWithDst) {
optimizations->fFlags |= GrPipelineOptimizations::kWillColorBlendWithDst_Flag;
}
return pipeline;
}
static void add_dependencies_for_processor(const GrFragmentProcessor* proc, GrRenderTarget* rt) {
GrFragmentProcessor::TextureAccessIter iter(proc);
while (const GrProcessor::TextureSampler* sampler = iter.next()) {
SkASSERT(rt->getLastOpList());
rt->getLastOpList()->addDependency(sampler->texture());
}
}
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.numTextureSamplers(); ++i) {
GrTexture* texture = xfer.textureSampler(i).texture();
SkASSERT(rt->getLastOpList());
rt->getLastOpList()->addDependency(texture);
}
}
////////////////////////////////////////////////////////////////////////////////
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.fUserStencilSettings != b.fUserStencilSettings ||
a.fDrawFace != b.fDrawFace) {
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;
}