Replace ModulateRGBA effect with Xfermode using modulate blend.
This reduces our code size by reusing existing components to perform
the same blend, and generates a shader that should be conceptually
equivalent (although it gives the inliner a bit more work to do).
Change-Id: Ie2203f7613503476fa9d045aba58d9ef39f3ea26
Bug: skia:10457
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/302264
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/GrFragmentProcessor.cpp b/src/gpu/GrFragmentProcessor.cpp
index 289d45f..dc36c09 100644
--- a/src/gpu/GrFragmentProcessor.cpp
+++ b/src/gpu/GrFragmentProcessor.cpp
@@ -203,6 +203,14 @@
GrXfermodeFragmentProcessor::ComposeBehavior::kSkModeBehavior);
}
+std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::ModulateRGBA(
+ std::unique_ptr<GrFragmentProcessor> inputFP, const SkPMColor4f& color) {
+ auto colorFP = GrConstColorProcessor::Make(color);
+ return GrXfermodeFragmentProcessor::Make(
+ std::move(colorFP), std::move(inputFP), SkBlendMode::kModulate,
+ GrXfermodeFragmentProcessor::ComposeBehavior::kSkModeBehavior);
+}
+
std::unique_ptr<GrFragmentProcessor> GrFragmentProcessor::ClampPremulOutput(
std::unique_ptr<GrFragmentProcessor> fp) {
if (!fp) {
diff --git a/src/gpu/GrFragmentProcessor.h b/src/gpu/GrFragmentProcessor.h
index c23be06..812f06f 100644
--- a/src/gpu/GrFragmentProcessor.h
+++ b/src/gpu/GrFragmentProcessor.h
@@ -55,6 +55,13 @@
std::unique_ptr<GrFragmentProcessor> child, const SkPMColor4f& color);
/**
+ * Returns a fragment processor that generates the passed-in color, modulated by the child's
+ * RGBA color. (Pass a null FP to use the color from sk_InColor instead of a child FP.)
+ */
+ static std::unique_ptr<GrFragmentProcessor> ModulateRGBA(
+ std::unique_ptr<GrFragmentProcessor> child, const SkPMColor4f& color);
+
+ /**
* This assumes that the input color to the returned processor will be unpremul and that the
* passed processor (which becomes the returned processor's child) produces a premul output.
* The result of the returned processor is a premul of its input color modulated by the child
diff --git a/src/gpu/GrProcessor.h b/src/gpu/GrProcessor.h
index 03a4d11..ec1e09d 100644
--- a/src/gpu/GrProcessor.h
+++ b/src/gpu/GrProcessor.h
@@ -121,7 +121,6 @@
kGrMatrixConvolutionEffect_ClassID,
kGrMatrixEffect_ClassID,
kGrMeshTestProcessor_ClassID,
- kGrModulateRGBAEffect_ClassID,
kGrMorphologyEffect_ClassID,
kGrMixerEffect_ClassID,
kGrOverrideInputFragmentProcessor_ClassID,
diff --git a/src/gpu/GrProcessorUnitTest.cpp b/src/gpu/GrProcessorUnitTest.cpp
index 7b8cd20..d257e44 100644
--- a/src/gpu/GrProcessorUnitTest.cpp
+++ b/src/gpu/GrProcessorUnitTest.cpp
@@ -81,7 +81,7 @@
* we verify the count is as expected. If a new factory is added, then these numbers must be
* manually adjusted.
*/
-static const int kFPFactoryCount = 38;
+static const int kFPFactoryCount = 37;
static const int kGPFactoryCount = 14;
static const int kXPFactoryCount = 4;
diff --git a/src/gpu/SkGr.cpp b/src/gpu/SkGr.cpp
index 8df9db0..1dd5902 100644
--- a/src/gpu/SkGr.cpp
+++ b/src/gpu/SkGr.cpp
@@ -45,7 +45,6 @@
#include "src/gpu/effects/generated/GrClampFragmentProcessor.h"
#include "src/gpu/effects/generated/GrConstColorProcessor.h"
#include "src/gpu/effects/generated/GrDitherEffect.h"
-#include "src/gpu/effects/generated/GrModulateRGBAEffect.h"
#include "src/image/SkImage_Base.h"
#include "src/shaders/SkShaderBase.h"
@@ -263,7 +262,7 @@
if (1.0f != paintAlpha) {
// No gamut conversion - paintAlpha is a (linear) alpha value, splatted to all
// color channels. It's value should be treated as the same in ANY color space.
- paintFP = GrModulateRGBAEffect::Make(
+ paintFP = GrFragmentProcessor::ModulateRGBA(
std::move(paintFP), {paintAlpha, paintAlpha, paintAlpha, paintAlpha});
}
} else {
@@ -286,7 +285,7 @@
if (1.0f != paintAlpha) {
// No gamut conversion - paintAlpha is a (linear) alpha value, splatted to all
// color channels. It's value should be treated as the same in ANY color space.
- paintFP = GrModulateRGBAEffect::Make(
+ paintFP = GrFragmentProcessor::ModulateRGBA(
std::move(paintFP), {paintAlpha, paintAlpha, paintAlpha, paintAlpha});
}
} else {
diff --git a/src/gpu/effects/GrConvexPolyEffect.cpp b/src/gpu/effects/GrConvexPolyEffect.cpp
index ae1827e..3dfe6c2 100644
--- a/src/gpu/effects/GrConvexPolyEffect.cpp
+++ b/src/gpu/effects/GrConvexPolyEffect.cpp
@@ -8,7 +8,6 @@
#include "src/core/SkPathPriv.h"
#include "src/gpu/effects/GrConvexPolyEffect.h"
#include "src/gpu/effects/generated/GrAARectEffect.h"
-#include "src/gpu/effects/generated/GrModulateRGBAEffect.h"
#include "src/gpu/glsl/GrGLSLFragmentProcessor.h"
#include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h"
#include "src/gpu/glsl/GrGLSLProgramDataManager.h"
@@ -106,13 +105,15 @@
// skip the draw or omit the clip element.
if (!SkPathPriv::CheapComputeFirstDirection(path, &dir)) {
if (GrProcessorEdgeTypeIsInverseFill(type)) {
- return GrFPSuccess(GrModulateRGBAEffect::Make(std::move(inputFP), SK_PMColor4fWHITE));
+ return GrFPSuccess(
+ GrFragmentProcessor::ModulateRGBA(std::move(inputFP), SK_PMColor4fWHITE));
}
// This could use ConstColor instead of ModulateRGBA but it would trigger a debug print
// about a coverage processor not being compatible with the alpha-as-coverage optimization.
// We don't really care about this unlikely case so we just use ModulateRGBA to suppress
// the print.
- return GrFPSuccess(GrModulateRGBAEffect::Make(std::move(inputFP), SK_PMColor4fTRANSPARENT));
+ return GrFPSuccess(
+ GrFragmentProcessor::ModulateRGBA(std::move(inputFP), SK_PMColor4fTRANSPARENT));
}
SkScalar edges[3 * kMaxEdges];
diff --git a/src/gpu/effects/GrModulateRGBAEffect.fp b/src/gpu/effects/GrModulateRGBAEffect.fp
deleted file mode 100644
index bc59055..0000000
--- a/src/gpu/effects/GrModulateRGBAEffect.fp
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright 2020 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-in fragmentProcessor? inputFP;
-layout(ctype=SkPMColor4f, tracked) in uniform half4 color;
-
-@optimizationFlags {
- (inputFP ? ProcessorOptimizationFlags(inputFP.get()) : kAll_OptimizationFlags) &
- (kConstantOutputForConstantInput_OptimizationFlag |
- kCompatibleWithCoverageAsAlpha_OptimizationFlag |
- (color.isOpaque() ? kPreservesOpaqueInput_OptimizationFlag : kNone_OptimizationFlags))
-}
-
-void main() {
- sk_OutColor = color * sample(inputFP, sk_InColor);
-}
-
-@class {
- SkPMColor4f constantOutputForConstantInput(const SkPMColor4f& inColor) const override {
- SkPMColor4f input = this->numChildProcessors()
- ? ConstantOutputForConstantInput(this->childProcessor(inputFP_index), inColor)
- : inColor;
- return color * input;
- }
-}
-
-@test(d) {
- SkPMColor4f color;
- int colorPicker = d->fRandom->nextULessThan(3);
- switch (colorPicker) {
- case 0: {
- uint32_t a = d->fRandom->nextULessThan(0x100);
- uint32_t r = d->fRandom->nextULessThan(a+1);
- uint32_t g = d->fRandom->nextULessThan(a+1);
- uint32_t b = d->fRandom->nextULessThan(a+1);
- color = SkPMColor4f::FromBytes_RGBA(GrColorPackRGBA(r, g, b, a));
- break;
- }
- case 1:
- color = SK_PMColor4fTRANSPARENT;
- break;
- case 2:
- uint32_t c = d->fRandom->nextULessThan(0x100);
- color = SkPMColor4f::FromBytes_RGBA(c | (c << 8) | (c << 16) | (c << 24));
- break;
- }
- return GrModulateRGBAEffect::Make(/*inputFP=*/nullptr, color);
-}
diff --git a/src/gpu/effects/generated/GrModulateRGBAEffect.cpp b/src/gpu/effects/generated/GrModulateRGBAEffect.cpp
deleted file mode 100644
index 2598b57..0000000
--- a/src/gpu/effects/generated/GrModulateRGBAEffect.cpp
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Copyright 2020 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-/**************************************************************************************************
- *** This file was autogenerated from GrModulateRGBAEffect.fp; do not modify.
- **************************************************************************************************/
-#include "GrModulateRGBAEffect.h"
-
-#include "src/gpu/GrTexture.h"
-#include "src/gpu/glsl/GrGLSLFragmentProcessor.h"
-#include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h"
-#include "src/gpu/glsl/GrGLSLProgramBuilder.h"
-#include "src/sksl/SkSLCPP.h"
-#include "src/sksl/SkSLUtil.h"
-class GrGLSLModulateRGBAEffect : public GrGLSLFragmentProcessor {
-public:
- GrGLSLModulateRGBAEffect() {}
- void emitCode(EmitArgs& args) override {
- GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
- const GrModulateRGBAEffect& _outer = args.fFp.cast<GrModulateRGBAEffect>();
- (void)_outer;
- auto color = _outer.color;
- (void)color;
- colorVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag,
- kHalf4_GrSLType, "color");
- SkString _input618(args.fInputColor);
- SkString _sample618;
- if (_outer.inputFP_index >= 0) {
- _sample618 = this->invokeChild(_outer.inputFP_index, _input618.c_str(), args);
- } else {
- _sample618.swap(_input618);
- }
- fragBuilder->codeAppendf(
- R"SkSL(%s = %s * %s;
-)SkSL",
- args.fOutputColor, args.fUniformHandler->getUniformCStr(colorVar),
- _sample618.c_str());
- }
-
-private:
- void onSetData(const GrGLSLProgramDataManager& pdman,
- const GrFragmentProcessor& _proc) override {
- const GrModulateRGBAEffect& _outer = _proc.cast<GrModulateRGBAEffect>();
- {
- const SkPMColor4f& colorValue = _outer.color;
- if (colorPrev != colorValue) {
- colorPrev = colorValue;
- pdman.set4fv(colorVar, 1, colorValue.vec());
- }
- }
- }
- SkPMColor4f colorPrev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN};
- UniformHandle colorVar;
-};
-GrGLSLFragmentProcessor* GrModulateRGBAEffect::onCreateGLSLInstance() const {
- return new GrGLSLModulateRGBAEffect();
-}
-void GrModulateRGBAEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps,
- GrProcessorKeyBuilder* b) const {}
-bool GrModulateRGBAEffect::onIsEqual(const GrFragmentProcessor& other) const {
- const GrModulateRGBAEffect& that = other.cast<GrModulateRGBAEffect>();
- (void)that;
- if (color != that.color) return false;
- return true;
-}
-GrModulateRGBAEffect::GrModulateRGBAEffect(const GrModulateRGBAEffect& src)
- : INHERITED(kGrModulateRGBAEffect_ClassID, src.optimizationFlags()), color(src.color) {
- if (src.inputFP_index >= 0) {
- inputFP_index = this->cloneAndRegisterChildProcessor(src.childProcessor(src.inputFP_index));
- }
-}
-std::unique_ptr<GrFragmentProcessor> GrModulateRGBAEffect::clone() const {
- return std::unique_ptr<GrFragmentProcessor>(new GrModulateRGBAEffect(*this));
-}
-GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrModulateRGBAEffect);
-#if GR_TEST_UTILS
-std::unique_ptr<GrFragmentProcessor> GrModulateRGBAEffect::TestCreate(GrProcessorTestData* d) {
- SkPMColor4f color;
- int colorPicker = d->fRandom->nextULessThan(3);
- switch (colorPicker) {
- case 0: {
- uint32_t a = d->fRandom->nextULessThan(0x100);
- uint32_t r = d->fRandom->nextULessThan(a + 1);
- uint32_t g = d->fRandom->nextULessThan(a + 1);
- uint32_t b = d->fRandom->nextULessThan(a + 1);
- color = SkPMColor4f::FromBytes_RGBA(GrColorPackRGBA(r, g, b, a));
- break;
- }
- case 1:
- color = SK_PMColor4fTRANSPARENT;
- break;
- case 2:
- uint32_t c = d->fRandom->nextULessThan(0x100);
- color = SkPMColor4f::FromBytes_RGBA(c | (c << 8) | (c << 16) | (c << 24));
- break;
- }
- return GrModulateRGBAEffect::Make(/*inputFP=*/nullptr, color);
-}
-#endif
diff --git a/src/gpu/effects/generated/GrModulateRGBAEffect.h b/src/gpu/effects/generated/GrModulateRGBAEffect.h
deleted file mode 100644
index 0ef5330..0000000
--- a/src/gpu/effects/generated/GrModulateRGBAEffect.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2020 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-/**************************************************************************************************
- *** This file was autogenerated from GrModulateRGBAEffect.fp; do not modify.
- **************************************************************************************************/
-#ifndef GrModulateRGBAEffect_DEFINED
-#define GrModulateRGBAEffect_DEFINED
-
-#include "include/core/SkM44.h"
-#include "include/core/SkTypes.h"
-
-#include "src/gpu/GrFragmentProcessor.h"
-
-class GrModulateRGBAEffect : public GrFragmentProcessor {
-public:
- SkPMColor4f constantOutputForConstantInput(const SkPMColor4f& inColor) const override {
- SkPMColor4f input = this->numChildProcessors()
- ? ConstantOutputForConstantInput(
- this->childProcessor(inputFP_index), inColor)
- : inColor;
- return color * input;
- }
- static std::unique_ptr<GrFragmentProcessor> Make(std::unique_ptr<GrFragmentProcessor> inputFP,
- SkPMColor4f color) {
- return std::unique_ptr<GrFragmentProcessor>(
- new GrModulateRGBAEffect(std::move(inputFP), color));
- }
- GrModulateRGBAEffect(const GrModulateRGBAEffect& src);
- std::unique_ptr<GrFragmentProcessor> clone() const override;
- const char* name() const override { return "ModulateRGBAEffect"; }
- int inputFP_index = -1;
- SkPMColor4f color;
-
-private:
- GrModulateRGBAEffect(std::unique_ptr<GrFragmentProcessor> inputFP, SkPMColor4f color)
- : INHERITED(kGrModulateRGBAEffect_ClassID,
- (OptimizationFlags)(inputFP ? ProcessorOptimizationFlags(inputFP.get())
- : kAll_OptimizationFlags) &
- (kConstantOutputForConstantInput_OptimizationFlag |
- kCompatibleWithCoverageAsAlpha_OptimizationFlag |
- (color.isOpaque() ? kPreservesOpaqueInput_OptimizationFlag
- : kNone_OptimizationFlags)))
- , color(color) {
- inputFP_index = this->registerChild(std::move(inputFP), SkSL::SampleUsage::PassThrough());
- }
- GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
- void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override;
- bool onIsEqual(const GrFragmentProcessor&) const override;
- GR_DECLARE_FRAGMENT_PROCESSOR_TEST
- typedef GrFragmentProcessor INHERITED;
-};
-#endif