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/*
* 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 "GrAppliedClip.h"
#include "GrCaps.h"
#include "GrGpu.h"
#include "GrPipelineBuilder.h"
#include "GrRenderTargetContext.h"
#include "GrRenderTargetOpList.h"
#include "GrRenderTargetPriv.h"
#include "GrXferProcessor.h"
#include "ops/GrOp.h"
void GrPipeline::init(const InitArgs& args) {
SkASSERT(args.fRenderTarget);
fRenderTarget.reset(args.fRenderTarget);
fFlags = args.fFlags;
if (args.fAppliedClip) {
fScissorState = args.fAppliedClip->scissorState();
if (args.fAppliedClip->hasStencilClip()) {
fFlags |= kHasStencilClip_Flag;
}
fWindowRectsState = args.fAppliedClip->windowRectsState();
}
if (args.fProcessors->usesDistanceVectorField()) {
fFlags |= kUsesDistanceVectorField_Flag;
}
if (args.fProcessors->disableOutputConversionToSRGB()) {
fFlags |= kDisableOutputConversionToSRGB_Flag;
}
if (args.fProcessors->allowSRGBInputs()) {
fFlags |= kAllowSRGBInputs_Flag;
}
if (!args.fUserStencil->isDisabled(fFlags & kHasStencilClip_Flag)) {
fFlags |= kStencilEnabled_Flag;
}
fUserStencilSettings = args.fUserStencil;
fDrawFace = static_cast<int16_t>(args.fDrawFace);
bool isHWAA = kHWAntialias_Flag & args.fFlags;
// Create XferProcessor from DS's XPFactory
{
bool hasMixedSamples =
args.fRenderTarget->isMixedSampled() && (isHWAA || this->isStencilEnabled());
sk_sp<GrXferProcessor> xferProcessor =
GrXPFactory::MakeXferProcessor(args.fProcessors->xpFactory(), args.fXPInputColor,
args.fXPInputCoverage, hasMixedSamples, *args.fCaps);
fXferProcessor.reset(xferProcessor.get());
}
if (args.fDstTexture.texture()) {
fDstTexture.reset(args.fDstTexture.texture());
fDstTextureOffset = args.fDstTexture.offset();
}
// Copy GrFragmentProcessors from GrPipelineBuilder to Pipeline, possibly removing some of the
// color fragment processors.
fNumColorProcessors = args.fProcessors->numColorFragmentProcessors();
int numTotalProcessors =
fNumColorProcessors + args.fProcessors->numCoverageFragmentProcessors();
if (args.fAppliedClip && args.fAppliedClip->clipCoverageFragmentProcessor()) {
++numTotalProcessors;
}
fFragmentProcessors.reset(numTotalProcessors);
int currFPIdx = 0;
for (int i = 0; i < args.fProcessors->numColorFragmentProcessors(); ++i, ++currFPIdx) {
const GrFragmentProcessor* fp = args.fProcessors->colorFragmentProcessor(i);
fFragmentProcessors[currFPIdx].reset(fp);
}
for (int i = 0; i < args.fProcessors->numCoverageFragmentProcessors(); ++i, ++currFPIdx) {
const GrFragmentProcessor* fp = args.fProcessors->coverageFragmentProcessor(i);
fFragmentProcessors[currFPIdx].reset(fp);
}
if (args.fAppliedClip) {
if (const GrFragmentProcessor* fp = args.fAppliedClip->clipCoverageFragmentProcessor()) {
fFragmentProcessors[currFPIdx].reset(fp);
}
}
}
static void add_dependencies_for_processor(const GrFragmentProcessor* proc, GrRenderTarget* rt) {
GrFragmentProcessor::TextureAccessIter iter(proc);
while (const GrResourceIOProcessor::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);
}
if (fDstTexture) {
SkASSERT(rt->getLastOpList());
rt->getLastOpList()->addDependency(fDstTexture.get());
}
}
GrPipeline::GrPipeline(GrRenderTarget* rt, SkBlendMode blendmode)
: fRenderTarget(rt)
, fScissorState()
, fWindowRectsState()
, fUserStencilSettings(&GrUserStencilSettings::kUnused)
, fDrawFace(static_cast<uint16_t>(GrDrawFace::kBoth))
, fFlags()
, fXferProcessor(GrPorterDuffXPFactory::CreateNoCoverageXP(blendmode).get())
, fFragmentProcessors()
, fNumColorProcessors(0) {
}
////////////////////////////////////////////////////////////////////////////////
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 != 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;
}
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