blob: ba3d39a97340903eada57b632416d3825ec9847a [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 "src/gpu/ganesh/GrPipeline.h"
#include "src/gpu/KeyBuilder.h"
#include "src/gpu/ganesh/GrAppliedClip.h"
#include "src/gpu/ganesh/GrCaps.h"
#include "src/gpu/ganesh/GrTexture.h"
#include "src/gpu/ganesh/GrXferProcessor.h"
#include "src/gpu/ganesh/glsl/GrGLSLProgramDataManager.h"
#include "src/gpu/ganesh/glsl/GrGLSLUniformHandler.h"
GrPipeline::GrPipeline(const InitArgs& args,
sk_sp<const GrXferProcessor> xferProcessor,
const GrAppliedHardClip& hardClip)
: fDstProxy(args.fDstProxyView)
, fWindowRectsState(hardClip.windowRectsState())
, fXferProcessor(std::move(xferProcessor))
, fWriteSwizzle(args.fWriteSwizzle) {
fFlags = (Flags)args.fInputFlags;
if (hardClip.hasStencilClip()) {
fFlags |= Flags::kHasStencilClip;
}
if (hardClip.scissorState().enabled()) {
fFlags |= Flags::kScissorTestEnabled;
}
// If we have any special dst sample flags we better also have a dst proxy
SkASSERT(this->dstSampleFlags() == GrDstSampleFlags::kNone || this->dstProxyView());
}
GrPipeline::GrPipeline(const InitArgs& args, GrProcessorSet&& processors,
GrAppliedClip&& appliedClip)
: GrPipeline(args, processors.refXferProcessor(), appliedClip.hardClip()) {
SkASSERT(processors.isFinalized());
// Copy GrFragmentProcessors from GrProcessorSet to Pipeline
fNumColorProcessors = processors.hasColorFragmentProcessor() ? 1 : 0;
int numTotalProcessors = fNumColorProcessors +
(processors.hasCoverageFragmentProcessor() ? 1 : 0) +
(appliedClip.hasCoverageFragmentProcessor() ? 1 : 0);
fFragmentProcessors.reset(numTotalProcessors);
int currFPIdx = 0;
if (processors.hasColorFragmentProcessor()) {
fFragmentProcessors[currFPIdx++] = processors.detachColorFragmentProcessor();
}
if (processors.hasCoverageFragmentProcessor()) {
fFragmentProcessors[currFPIdx++] = processors.detachCoverageFragmentProcessor();
}
if (appliedClip.hasCoverageFragmentProcessor()) {
fFragmentProcessors[currFPIdx++] = appliedClip.detachCoverageFragmentProcessor();
}
}
GrXferBarrierType GrPipeline::xferBarrierType(const GrCaps& caps) const {
if (this->dstSampleFlags() & GrDstSampleFlags::kRequiresTextureBarrier) {
return kTexture_GrXferBarrierType;
}
return this->getXferProcessor().xferBarrierType(caps);
}
GrPipeline::GrPipeline(GrScissorTest scissorTest,
sk_sp<const GrXferProcessor> xp,
const skgpu::Swizzle& writeSwizzle,
InputFlags inputFlags)
: fWindowRectsState()
, fFlags((Flags)inputFlags)
, fXferProcessor(std::move(xp))
, fWriteSwizzle(writeSwizzle) {
if (GrScissorTest::kEnabled == scissorTest) {
fFlags |= Flags::kScissorTestEnabled;
}
}
void GrPipeline::genKey(skgpu::KeyBuilder* b, const GrCaps& caps) const {
// kSnapVerticesToPixelCenters is implemented in a shader.
InputFlags ignoredFlags = InputFlags::kSnapVerticesToPixelCenters;
b->add32((uint32_t)fFlags & ~(uint32_t)ignoredFlags, "flags");
const skgpu::BlendInfo& blendInfo = this->getXferProcessor().getBlendInfo();
static constexpr uint32_t kBlendCoeffSize = 5;
static constexpr uint32_t kBlendEquationSize = 5;
static_assert(static_cast<int>(skgpu::BlendCoeff::kLast) < (1 << kBlendCoeffSize));
static_assert(static_cast<int>(skgpu::BlendEquation::kLast) < (1 << kBlendEquationSize));
b->addBool(blendInfo.fWritesColor, "writesColor");
b->addBits(kBlendCoeffSize, static_cast<int>(blendInfo.fSrcBlend), "srcBlend");
b->addBits(kBlendCoeffSize, static_cast<int>(blendInfo.fDstBlend), "dstBlend");
b->addBits(kBlendEquationSize, static_cast<int>(blendInfo.fEquation), "equation");
b->addBool(this->usesDstInputAttachment(), "inputAttach");
}
void GrPipeline::visitTextureEffects(
const std::function<void(const GrTextureEffect&)>& func) const {
for (auto& fp : fFragmentProcessors) {
fp->visitTextureEffects(func);
}
}
void GrPipeline::visitProxies(const GrVisitProxyFunc& func) const {
// This iteration includes any clip coverage FPs
for (auto& fp : fFragmentProcessors) {
fp->visitProxies(func);
}
if (this->usesDstTexture()) {
func(this->dstProxyView().proxy(), GrMipmapped::kNo);
}
}
void GrPipeline::setDstTextureUniforms(const GrGLSLProgramDataManager& pdm,
GrGLSLBuiltinUniformHandles* fBuiltinUniformHandles) const {
GrTexture* dstTexture = this->peekDstTexture();
if (dstTexture) {
if (fBuiltinUniformHandles->fDstTextureCoordsUni.isValid()) {
float scaleX = 1.f;
float scaleY = 1.f;
if (dstTexture->textureType() == GrTextureType::kRectangle) {
// When we have a rectangle texture, we use the scaleX component to store the height
// in case we need to flip the coords when using a bottom left origin.
scaleX = dstTexture->height();
} else {
scaleX /= dstTexture->width();
scaleY /= dstTexture->height();
}
pdm.set4f(fBuiltinUniformHandles->fDstTextureCoordsUni,
static_cast<float>(this->dstTextureOffset().fX),
static_cast<float>(this->dstTextureOffset().fY),
scaleX,
scaleY);
}
} else {
SkASSERT(!fBuiltinUniformHandles->fDstTextureCoordsUni.isValid());
}
}