Add gpu implementation of OverdrawXfermode
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1607253002
Committed: https://skia.googlesource.com/skia/+/8bc3cf88bbf5e5d5724356f076931bb70a6117ba
Review URL: https://codereview.chromium.org/1607253002
diff --git a/debugger/QT/SkDebuggerGUI.cpp b/debugger/QT/SkDebuggerGUI.cpp
index 0d009b3..0c369f6 100644
--- a/debugger/QT/SkDebuggerGUI.cpp
+++ b/debugger/QT/SkDebuggerGUI.cpp
@@ -202,7 +202,6 @@
void SkDebuggerGUI::actionRasterSettingsChanged() {
fCanvasWidget.setWidgetVisibility(SkCanvasWidget::kRaster_8888_WidgetType,
!fSettingsWidget.isRasterEnabled());
- fDebugger.setOverdrawViz(fSettingsWidget.isOverdrawVizEnabled());
this->updateImage();
}
@@ -210,6 +209,7 @@
fDebugger.setMegaViz(fSettingsWidget.isMegaVizEnabled());
fDebugger.setPathOps(fSettingsWidget.isPathOpsEnabled());
fDebugger.highlightCurrentCommand(fSettingsWidget.isVisibilityFilterEnabled());
+ fDebugger.setOverdrawViz(fSettingsWidget.isOverdrawVizEnabled());
this->updateImage();
}
diff --git a/debugger/QT/SkSettingsWidget.cpp b/debugger/QT/SkSettingsWidget.cpp
index 59b7920..4665217 100644
--- a/debugger/QT/SkSettingsWidget.cpp
+++ b/debugger/QT/SkSettingsWidget.cpp
@@ -21,30 +21,36 @@
// Visualizations toggles.
fVisualizationsGroup.setTitle("Visualizations");
+
fVisibilityFilterCheckBox.setText("Visibility Filter");
fVisualizationsLayout.addWidget(&fVisibilityFilterCheckBox);
+
fMegaVizCheckBox.setText("Mega Viz");
fVisualizationsLayout.addWidget(&fMegaVizCheckBox);
+
fPathOpsCheckBox.setText("PathOps ");
fVisualizationsLayout.addWidget(&fPathOpsCheckBox);
+
+ fOverdrawVizCheckBox.setText("Overdraw Viz");
+ fVisualizationsLayout.addWidget(&fOverdrawVizCheckBox);
+
fVisualizationsGroup.setLayout(&fVisualizationsLayout);
+
connect(&fVisibilityFilterCheckBox, SIGNAL(toggled(bool)), this,
SIGNAL(visualizationsChanged()));
connect(&fMegaVizCheckBox, SIGNAL(toggled(bool)), this, SIGNAL(visualizationsChanged()));
connect(&fPathOpsCheckBox, SIGNAL(toggled(bool)), this, SIGNAL(visualizationsChanged()));
+ connect(&fOverdrawVizCheckBox, SIGNAL(toggled(bool)), this, SIGNAL(visualizationsChanged()));
fVerticalLayout.addRow(&fVisualizationsGroup);
// Raster toggles.
fRasterGroup.setTitle("Raster");
fRasterGroup.setCheckable(true);
- fOverdrawVizCheckBox.setText("Overdraw Viz");
- fRasterLayout.addWidget(&fOverdrawVizCheckBox);
fRasterGroup.setLayout(&fRasterLayout);
fVerticalLayout.addRow(&fRasterGroup);
connect(&fRasterGroup, SIGNAL(toggled(bool)), this, SIGNAL(rasterSettingsChanged()));
- connect(&fOverdrawVizCheckBox, SIGNAL(toggled(bool)), this, SIGNAL(rasterSettingsChanged()));
#if SK_SUPPORT_GPU
fGLGroup.setTitle("OpenGL");
diff --git a/gyp/debugger.gyp b/gyp/debugger.gyp
index 6cc2a40..fb02696 100644
--- a/gyp/debugger.gyp
+++ b/gyp/debugger.gyp
@@ -101,6 +101,8 @@
'../src/utils/debugger/SkDrawCommand.cpp',
'../src/utils/debugger/SkObjectParser.h',
'../src/utils/debugger/SkObjectParser.cpp',
+ '../src/utils/debugger/SkOverdrawMode.h',
+ '../src/utils/debugger/SkOverdrawMode.cpp',
'../debugger/debuggermain.cpp',
'../debugger/QT/SkDebuggerGUI.cpp',
'../debugger/QT/SkDebuggerGUI.h',
diff --git a/gyp/dm.gypi b/gyp/dm.gypi
index 8ad3e68..bb21923 100644
--- a/gyp/dm.gypi
+++ b/gyp/dm.gypi
@@ -44,6 +44,8 @@
'../src/utils/debugger/SkDebugCanvas.cpp',
'../src/utils/debugger/SkDrawCommand.cpp',
'../src/utils/debugger/SkObjectParser.cpp',
+ '../src/utils/debugger/SkOverdrawMode.h',
+ '../src/utils/debugger/SkOverdrawMode.cpp',
],
'conditions': [
[ 'skia_gpu == 1', {
diff --git a/gyp/gmslides.gypi b/gyp/gmslides.gypi
index 87910e5..cf5d162 100644
--- a/gyp/gmslides.gypi
+++ b/gyp/gmslides.gypi
@@ -27,6 +27,8 @@
'../src/utils/debugger/SkDebugCanvas.cpp',
'../src/utils/debugger/SkObjectParser.h',
'../src/utils/debugger/SkObjectParser.cpp',
+ '../src/utils/debugger/SkOverdrawMode.h',
+ '../src/utils/debugger/SkOverdrawMode.cpp',
],
}],
],
diff --git a/gyp/tests.gypi b/gyp/tests.gypi
index 10bfdb4..5f3df96 100644
--- a/gyp/tests.gypi
+++ b/gyp/tests.gypi
@@ -57,6 +57,8 @@
'../src/utils/debugger/SkDebugCanvas.cpp',
'../src/utils/debugger/SkObjectParser.h',
'../src/utils/debugger/SkObjectParser.cpp',
+ '../src/utils/debugger/SkOverdrawMode.h',
+ '../src/utils/debugger/SkOverdrawMode.cpp',
],
'sources!': [
'../tests/SkpSkGrTest.cpp',
diff --git a/src/effects/SkArithmeticMode.cpp b/src/effects/SkArithmeticMode.cpp
index 33783a5..7d22076 100644
--- a/src/effects/SkArithmeticMode.cpp
+++ b/src/effects/SkArithmeticMode.cpp
@@ -34,8 +34,8 @@
return new SkArithmeticMode_scalar(k1, k2, k3, k4, enforcePMColor);
}
- virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
- const SkAlpha aa[]) const override;
+ void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
+ const SkAlpha aa[]) const override;
SK_TO_STRING_OVERRIDE()
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkArithmeticMode_scalar)
diff --git a/src/effects/SkArithmeticMode_gpu.cpp b/src/effects/SkArithmeticMode_gpu.cpp
index ce8e426..29c6602 100644
--- a/src/effects/SkArithmeticMode_gpu.cpp
+++ b/src/effects/SkArithmeticMode_gpu.cpp
@@ -226,17 +226,8 @@
add_arithmetic_code(fragBuilder, srcColor, dstColor, outColor, kUni, fEnforcePMColor);
// Apply coverage.
- if (proc.dstReadUsesMixedSamples()) {
- if (srcCoverage) {
- fragBuilder->codeAppendf("%s *= %s;", outColor, srcCoverage);
- fragBuilder->codeAppendf("%s = %s;", outColorSecondary, srcCoverage);
- } else {
- fragBuilder->codeAppendf("%s = vec4(1.0);", outColorSecondary);
- }
- } else if (srcCoverage) {
- fragBuilder->codeAppendf("%s = %s * %s + (vec4(1.0) - %s) * %s;",
- outColor, srcCoverage, outColor, srcCoverage, dstColor);
- }
+ INHERITED::DefaultCoverageModulation(fragBuilder, srcCoverage, dstColor, outColor,
+ outColorSecondary, proc);
}
void onSetData(const GrGLSLProgramDataManager& pdman,
diff --git a/src/gpu/GrProcessor.cpp b/src/gpu/GrProcessor.cpp
index 20f7d72..52f1de7 100644
--- a/src/gpu/GrProcessor.cpp
+++ b/src/gpu/GrProcessor.cpp
@@ -48,9 +48,9 @@
* we verify the count is as expected. If a new factory is added, then these numbers must be
* manually adjusted.
*/
-static const int kFPFactoryCount = 39;
+static const int kFPFactoryCount = 40;
static const int kGPFactoryCount = 14;
-static const int kXPFactoryCount = 6;
+static const int kXPFactoryCount = 7;
template<>
void GrProcessorTestFactory<GrFragmentProcessor>::VerifyFactoryCount() {
diff --git a/src/gpu/effects/GrCustomXfermode.cpp b/src/gpu/effects/GrCustomXfermode.cpp
index 04ff4a7..459ff52 100644
--- a/src/gpu/effects/GrCustomXfermode.cpp
+++ b/src/gpu/effects/GrCustomXfermode.cpp
@@ -172,17 +172,8 @@
GrGLSLBlend::AppendMode(fragBuilder, srcColor, dstColor, outColor, xp.mode());
// Apply coverage.
- if (xp.dstReadUsesMixedSamples()) {
- if (srcCoverage) {
- fragBuilder->codeAppendf("%s *= %s;", outColor, srcCoverage);
- fragBuilder->codeAppendf("%s = %s;", outColorSecondary, srcCoverage);
- } else {
- fragBuilder->codeAppendf("%s = vec4(1.0);", outColorSecondary);
- }
- } else if (srcCoverage) {
- fragBuilder->codeAppendf("%s = %s * %s + (vec4(1.0) - %s) * %s;",
- outColor, srcCoverage, outColor, srcCoverage, dstColor);
- }
+ INHERITED::DefaultCoverageModulation(fragBuilder, srcCoverage, dstColor, outColor,
+ outColorSecondary, xp);
}
void onSetData(const GrGLSLProgramDataManager&, const GrXferProcessor&) override {}
diff --git a/src/gpu/effects/GrPorterDuffXferProcessor.cpp b/src/gpu/effects/GrPorterDuffXferProcessor.cpp
index 94d3dd6..c443e1e 100644
--- a/src/gpu/effects/GrPorterDuffXferProcessor.cpp
+++ b/src/gpu/effects/GrPorterDuffXferProcessor.cpp
@@ -559,17 +559,8 @@
GrGLSLBlend::AppendMode(fragBuilder, srcColor, dstColor, outColor, xp.getXfermode());
// Apply coverage.
- if (xp.dstReadUsesMixedSamples()) {
- if (srcCoverage) {
- fragBuilder->codeAppendf("%s *= %s;", outColor, srcCoverage);
- fragBuilder->codeAppendf("%s = %s;", outColorSecondary, srcCoverage);
- } else {
- fragBuilder->codeAppendf("%s = vec4(1.0);", outColorSecondary);
- }
- } else if (srcCoverage) {
- fragBuilder->codeAppendf("%s = %s * %s + (vec4(1.0) - %s) * %s;",
- outColor, srcCoverage, outColor, srcCoverage, dstColor);
- }
+ INHERITED::DefaultCoverageModulation(fragBuilder, srcCoverage, dstColor, outColor,
+ outColorSecondary, xp);
}
void onSetData(const GrGLSLProgramDataManager&, const GrXferProcessor&) override {}
diff --git a/src/gpu/glsl/GrGLSLXferProcessor.h b/src/gpu/glsl/GrGLSLXferProcessor.h
index 6886740..37e684f 100644
--- a/src/gpu/glsl/GrGLSLXferProcessor.h
+++ b/src/gpu/glsl/GrGLSLXferProcessor.h
@@ -75,7 +75,7 @@
const char* outColor,
const char* outColorSecondary,
const GrXferProcessor& proc);
-
+
private:
/**
* Called by emitCode() when the XP will not be performing a dst read. This method is
diff --git a/src/utils/debugger/SkDebugCanvas.cpp b/src/utils/debugger/SkDebugCanvas.cpp
index 63739ae..c2dd8f8 100644
--- a/src/utils/debugger/SkDebugCanvas.cpp
+++ b/src/utils/debugger/SkDebugCanvas.cpp
@@ -6,55 +6,11 @@
*/
#include "SkClipStack.h"
-#include "SkColorPriv.h"
#include "SkDebugCanvas.h"
#include "SkDrawCommand.h"
#include "SkDevice.h"
#include "SkPaintFilterCanvas.h"
-#include "SkXfermode.h"
-
-namespace {
-
-class OverdrawXfermode : public SkXfermode {
-public:
- SkPMColor xferColor(SkPMColor src, SkPMColor dst) const override {
- // This table encodes the color progression of the overdraw visualization
- static const SkPMColor gTable[] = {
- SkPackARGB32(0x00, 0x00, 0x00, 0x00),
- SkPackARGB32(0xFF, 128, 158, 255),
- SkPackARGB32(0xFF, 170, 185, 212),
- SkPackARGB32(0xFF, 213, 195, 170),
- SkPackARGB32(0xFF, 255, 192, 127),
- SkPackARGB32(0xFF, 255, 185, 85),
- SkPackARGB32(0xFF, 255, 165, 42),
- SkPackARGB32(0xFF, 255, 135, 0),
- SkPackARGB32(0xFF, 255, 95, 0),
- SkPackARGB32(0xFF, 255, 50, 0),
- SkPackARGB32(0xFF, 255, 0, 0)
- };
-
-
- int idx;
- if (SkColorGetR(dst) < 64) { // 0
- idx = 0;
- } else if (SkColorGetG(dst) < 25) { // 10
- idx = 9; // cap at 9 for upcoming increment
- } else if ((SkColorGetB(dst)+21)/42 > 0) { // 1-6
- idx = 7 - (SkColorGetB(dst)+21)/42;
- } else { // 7-9
- idx = 10 - (SkColorGetG(dst)+22)/45;
- }
- ++idx;
- SkASSERT(idx < (int)SK_ARRAY_COUNT(gTable));
-
- return gTable[idx];
- }
-
- Factory getFactory() const override { return nullptr; }
-#ifndef SK_IGNORE_TO_STRING
- void toString(SkString* str) const override { str->set("OverdrawXfermode"); }
-#endif
-};
+#include "SkOverdrawMode.h"
class DebugPaintFilterCanvas : public SkPaintFilterCanvas {
public:
@@ -64,7 +20,7 @@
bool overrideFilterQuality,
SkFilterQuality quality)
: INHERITED(width, height)
- , fOverdrawXfermode(overdrawViz ? new OverdrawXfermode : nullptr)
+ , fOverdrawXfermode(overdrawViz ? SkOverdrawMode::Create() : nullptr)
, fOverrideFilterQuality(overrideFilterQuality)
, fFilterQuality(quality) {}
@@ -99,8 +55,6 @@
typedef SkPaintFilterCanvas INHERITED;
};
-}
-
SkDebugCanvas::SkDebugCanvas(int width, int height)
: INHERITED(width, height)
, fPicture(nullptr)
diff --git a/src/utils/debugger/SkOverdrawMode.cpp b/src/utils/debugger/SkOverdrawMode.cpp
new file mode 100644
index 0000000..8205ae7
--- /dev/null
+++ b/src/utils/debugger/SkOverdrawMode.cpp
@@ -0,0 +1,334 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkColorPriv.h"
+#include "SkOverdrawMode.h"
+#include "SkString.h"
+#include "SkXfermode.h"
+
+#if SK_SUPPORT_GPU
+#include "GrFragmentProcessor.h"
+#include "GrInvariantOutput.h"
+#include "GrXferProcessor.h"
+#include "glsl/GrGLSLFragmentProcessor.h"
+#include "glsl/GrGLSLFragmentShaderBuilder.h"
+#include "glsl/GrGLSLXferProcessor.h"
+
+ ///////////////////////////////////////////////////////////////////////////////
+ // Fragment Processor
+ ///////////////////////////////////////////////////////////////////////////////
+
+class GLOverdrawFP;
+
+class GrOverdrawFP : public GrFragmentProcessor {
+public:
+ static const GrFragmentProcessor* Create(const GrFragmentProcessor* dst) {
+ return new GrOverdrawFP(dst);
+ }
+
+ ~GrOverdrawFP() override { }
+
+ const char* name() const override { return "Overdraw"; }
+
+ SkString dumpInfo() const override {
+ SkString str;
+ return str;
+ }
+
+private:
+ GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
+
+ void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder* b) const override;
+
+ bool onIsEqual(const GrFragmentProcessor&) const override { return true; }
+
+ void onComputeInvariantOutput(GrInvariantOutput* inout) const override {
+ inout->setToUnknown(GrInvariantOutput::kWill_ReadInput);
+ }
+
+ GrOverdrawFP(const GrFragmentProcessor* dst) {
+ this->initClassID<GrOverdrawFP>();
+
+ SkASSERT(dst);
+ SkDEBUGCODE(int dstIndex = )this->registerChildProcessor(dst);
+ SkASSERT(0 == dstIndex);
+ }
+
+ GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
+ typedef GrFragmentProcessor INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+static void add_overdraw_code(GrGLSLFragmentBuilder* fragBuilder,
+ const char* dstColor,
+ const char* outputColor) {
+
+ static const GrGLSLShaderVar gColorTableArgs[] = {
+ // TODO: once kInt_GrSLType lands - switch this over
+ GrGLSLShaderVar("index", kFloat_GrSLType),
+ };
+ SkString colorTableFuncName;
+
+ // The 'colorTable' function exists to work around older GLSL's prohibition
+ // of initialized arrays. It takes an integer index and just returns the
+ // corresponding color.
+ fragBuilder->emitFunction(kVec4f_GrSLType,
+ "colorTable",
+ SK_ARRAY_COUNT(gColorTableArgs),
+ gColorTableArgs,
+ "if (index < 1.5) { return vec4(0.5, 0.617, 1.0, 1.0); }"
+ "if (index < 2.5) { return vec4(0.664, 0.723, 0.83, 1.0); }"
+ "if (index < 3.5) { return vec4(0.832, 0.762, 0.664, 1.0); }"
+ "if (index < 4.5) { return vec4(1, 0.75, 0.496, 1.0); }"
+ "if (index < 5.5) { return vec4(1, 0.723, 0.332, 1.0); }"
+ "if (index < 6.5) { return vec4(1, 0.645, 0.164, 1.0); }"
+ "if (index < 7.5) { return vec4(1, 0.527, 0, 1.0); }"
+ "if (index < 8.5) { return vec4(1, 0.371, 0, 1.0); }"
+ "if (index < 9.5) { return vec4(1, 0.195, 0, 1.0); }"
+ "return vec4(1, 0, 0, 1.0);",
+ &colorTableFuncName);
+
+ fragBuilder->codeAppend("int nextIdx;");
+ fragBuilder->codeAppendf("vec4 dst = %s;", dstColor);
+ fragBuilder->codeAppend("if (dst.r < 0.25) { nextIdx = 1; }");
+ // cap 'idx' at 10
+ fragBuilder->codeAppend("else if (dst.g < 0.0977) { nextIdx = 10; }");
+ fragBuilder->codeAppend("else if (dst.b > 0.08) { nextIdx = 8 - int(6.0 * dst.b + 0.5); }");
+ fragBuilder->codeAppend("else { nextIdx = 11 - int(5.7 * dst.g + 0.5); }");
+ fragBuilder->codeAppendf("%s = %s(float(nextIdx));", outputColor, colorTableFuncName.c_str());
+}
+
+class GLOverdrawFP : public GrGLSLFragmentProcessor {
+public:
+ GLOverdrawFP(const GrOverdrawFP&) {}
+
+ ~GLOverdrawFP() override {}
+
+ void emitCode(EmitArgs& args) override {
+ GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+ SkString dstColor("dstColor");
+ this->emitChild(0, nullptr, &dstColor, args);
+
+ add_overdraw_code(fragBuilder, dstColor.c_str(), args.fOutputColor);
+ }
+
+ static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder*) { }
+
+private:
+ typedef GrGLSLFragmentProcessor INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+GrGLSLFragmentProcessor* GrOverdrawFP::onCreateGLSLInstance() const {
+ return new GLOverdrawFP(*this);
+}
+
+void GrOverdrawFP::onGetGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) const {
+ GLOverdrawFP::GenKey(*this, caps, b);
+}
+
+const GrFragmentProcessor* GrOverdrawFP::TestCreate(GrProcessorTestData* d) {
+ SkAutoTUnref<const GrFragmentProcessor> dst(GrProcessorUnitTest::CreateChildFP(d));
+ return new GrOverdrawFP(dst);
+}
+
+GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrOverdrawFP);
+
+///////////////////////////////////////////////////////////////////////////////
+// Xfer Processor
+///////////////////////////////////////////////////////////////////////////////
+
+class OverdrawXP : public GrXferProcessor {
+public:
+ OverdrawXP(const DstTexture* dstTexture, bool hasMixedSamples)
+ : INHERITED(dstTexture, true, hasMixedSamples) {
+ this->initClassID<OverdrawXP>();
+ }
+
+ const char* name() const override { return "Overdraw"; }
+
+ GrGLSLXferProcessor* createGLSLInstance() const override;
+
+private:
+ GrXferProcessor::OptFlags onGetOptimizations(const GrPipelineOptimizations& optimizations,
+ bool doesStencilWrite,
+ GrColor* overrideColor,
+ const GrCaps& caps) const override {
+ // We never look at the color input
+ return GrXferProcessor::kIgnoreColor_OptFlag;
+ }
+
+ void onGetGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) const override;
+
+ bool onIsEqual(const GrXferProcessor&) const override { return true; }
+
+ typedef GrXferProcessor INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+class GLOverdrawXP : public GrGLSLXferProcessor {
+public:
+ GLOverdrawXP(const OverdrawXP&) { }
+
+ ~GLOverdrawXP() override {}
+
+ static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder*) { }
+
+private:
+ void emitBlendCodeForDstRead(GrGLSLXPFragmentBuilder* fragBuilder,
+ GrGLSLUniformHandler* uniformHandler,
+ const char* srcColor,
+ const char* srcCoverage,
+ const char* dstColor,
+ const char* outColor,
+ const char* outColorSecondary,
+ const GrXferProcessor& proc) override {
+ add_overdraw_code(fragBuilder, dstColor, outColor);
+
+ // Apply coverage.
+ INHERITED::DefaultCoverageModulation(fragBuilder, srcCoverage, dstColor, outColor,
+ outColorSecondary, proc);
+ }
+
+ void onSetData(const GrGLSLProgramDataManager&, const GrXferProcessor&) override { };
+
+ typedef GrGLSLXferProcessor INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+void OverdrawXP::onGetGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) const {
+ GLOverdrawXP::GenKey(*this, caps, b);
+}
+
+GrGLSLXferProcessor* OverdrawXP::createGLSLInstance() const { return new GLOverdrawXP(*this); }
+
+///////////////////////////////////////////////////////////////////////////////
+class GrOverdrawXPFactory : public GrXPFactory {
+public:
+ static GrXPFactory* Create() { return new GrOverdrawXPFactory(); }
+
+ void getInvariantBlendedColor(const GrProcOptInfo& colorPOI,
+ GrXPFactory::InvariantBlendedColor* blendedColor) const override {
+ blendedColor->fWillBlendWithDst = true;
+ blendedColor->fKnownColorFlags = kNone_GrColorComponentFlags;
+ }
+
+private:
+ GrOverdrawXPFactory() {
+ this->initClassID<GrOverdrawXPFactory>();
+ }
+
+ GrXferProcessor* onCreateXferProcessor(const GrCaps& caps,
+ const GrPipelineOptimizations& optimizations,
+ bool hasMixedSamples,
+ const DstTexture* dstTexture) const override {
+ return new OverdrawXP(dstTexture, hasMixedSamples);
+ }
+
+ bool willReadDstColor(const GrCaps& caps,
+ const GrPipelineOptimizations& optimizations,
+ bool hasMixedSamples) const override {
+ return true;
+ }
+
+ bool onIsEqual(const GrXPFactory& xpfBase) const override { return true; }
+
+ GR_DECLARE_XP_FACTORY_TEST;
+
+ typedef GrXPFactory INHERITED;
+};
+
+GR_DEFINE_XP_FACTORY_TEST(GrOverdrawXPFactory);
+
+const GrXPFactory* GrOverdrawXPFactory::TestCreate(GrProcessorTestData* d) {
+ return GrOverdrawXPFactory::Create();
+}
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+class SkOverdrawXfermode : public SkXfermode {
+public:
+ static SkXfermode* Create() {
+ return new SkOverdrawXfermode;
+ }
+
+ SkPMColor xferColor(SkPMColor src, SkPMColor dst) const override {
+ // This table encodes the color progression of the overdraw visualization
+ static const SkPMColor gTable[] = {
+ SkPackARGB32(0x00, 0x00, 0x00, 0x00),
+ SkPackARGB32(0xFF, 128, 158, 255),
+ SkPackARGB32(0xFF, 170, 185, 212),
+ SkPackARGB32(0xFF, 213, 195, 170),
+ SkPackARGB32(0xFF, 255, 192, 127),
+ SkPackARGB32(0xFF, 255, 185, 85),
+ SkPackARGB32(0xFF, 255, 165, 42),
+ SkPackARGB32(0xFF, 255, 135, 0),
+ SkPackARGB32(0xFF, 255, 95, 0),
+ SkPackARGB32(0xFF, 255, 50, 0),
+ SkPackARGB32(0xFF, 255, 0, 0)
+ };
+
+
+ int nextIdx;
+ if (SkColorGetR(dst) < 64) { // dst color is the 0th color so the next color is 1
+ nextIdx = 1;
+ } else if (SkColorGetG(dst) < 25) { // dst color is the 10th color so cap there
+ nextIdx = 10;
+ } else if ((SkColorGetB(dst)+21)/42 > 0) { // dst color is one of 1-6
+ nextIdx = 8 - (SkColorGetB(dst)+21)/42;
+ } else { // dst color is between 7 and 9
+ nextIdx = 11 - (SkColorGetG(dst)+22)/45;
+ }
+ SkASSERT(nextIdx < (int)SK_ARRAY_COUNT(gTable));
+
+ return gTable[nextIdx];
+ }
+
+ SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkOverdrawXfermode)
+
+#if SK_SUPPORT_GPU
+ bool asFragmentProcessor(const GrFragmentProcessor** output,
+ const GrFragmentProcessor* dst) const override {
+ if (output) {
+ *output = GrOverdrawFP::Create(dst);
+ }
+ return true;
+ }
+
+ bool asXPFactory(GrXPFactory** xpf) const override {
+ if (xpf) {
+ *xpf = GrOverdrawXPFactory::Create();
+ }
+ return true;
+ }
+#endif
+
+#ifndef SK_IGNORE_TO_STRING
+ void toString(SkString* str) const override { str->set("SkOverdrawXfermode"); }
+#endif
+
+private:
+ friend class SkOverdrawMode;
+
+ void flatten(SkWriteBuffer& buffer) const override { }
+
+ typedef SkXfermode INHERITED;
+};
+
+SkFlattenable* SkOverdrawXfermode::CreateProc(SkReadBuffer& buffer) {
+ return Create();
+}
+
+SkXfermode* SkOverdrawMode::Create() { return new SkOverdrawXfermode; }
+
+SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkOverdrawMode)
+ SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkOverdrawXfermode)
+SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END
diff --git a/src/utils/debugger/SkOverdrawMode.h b/src/utils/debugger/SkOverdrawMode.h
new file mode 100644
index 0000000..dba7635
--- /dev/null
+++ b/src/utils/debugger/SkOverdrawMode.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkOverdrawMode_DEFINED
+#define SkOverdrawMode_DEFINED
+
+#include "SkFlattenable.h"
+
+class SkXfermode;
+
+class SkOverdrawMode {
+public:
+ static SkXfermode* Create();
+
+ SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP();
+
+private:
+ SkOverdrawMode(); // can't be instantiated
+};
+
+#endif