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-rw-r--r--src/core/SkNormalBevelSource.cpp14
-rw-r--r--src/core/SkNormalFlatSource.cpp10
-rw-r--r--src/core/SkNormalMapSource.cpp10
-rw-r--r--src/core/SkNormalSource.h2
-rw-r--r--src/core/SkNormalSourcePriv.h57
-rw-r--r--src/gpu/GrFragmentProcessor.cpp3
-rw-r--r--src/gpu/GrPipeline.cpp3
-rw-r--r--src/gpu/GrPipeline.h6
-rw-r--r--src/gpu/GrPipelineBuilder.cpp2
-rw-r--r--src/gpu/GrPipelineBuilder.h10
-rw-r--r--src/gpu/GrPrimitiveProcessor.h4
-rw-r--r--src/gpu/glsl/GrGLSLFragmentProcessor.cpp3
-rw-r--r--src/gpu/glsl/GrGLSLFragmentProcessor.h7
-rw-r--r--src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp4
-rw-r--r--src/gpu/glsl/GrGLSLFragmentShaderBuilder.h6
-rw-r--r--src/gpu/glsl/GrGLSLPrimitiveProcessor.h4
-rw-r--r--src/gpu/glsl/GrGLSLProgramBuilder.cpp12
17 files changed, 136 insertions, 21 deletions
diff --git a/src/core/SkNormalBevelSource.cpp b/src/core/SkNormalBevelSource.cpp
index feccb0cce8..a63e434c3f 100644
--- a/src/core/SkNormalBevelSource.cpp
+++ b/src/core/SkNormalBevelSource.cpp
@@ -8,6 +8,7 @@
#include "SkNormalBevelSource.h"
#include "SkNormalSource.h"
+#include "SkNormalSourcePriv.h"
#include "SkPoint3.h"
#include "SkReadBuffer.h"
#include "SkWriteBuffer.h"
@@ -25,17 +26,19 @@ public:
, fWidth(width)
, fHeight(height) {
this->initClassID<NormalBevelFP>();
+
+ fUsesDistanceVectorField = true;
}
- class GLSLNormalBevelFP : public GrGLSLFragmentProcessor {
+ class GLSLNormalBevelFP : public GLSLNormalFP {
public:
GLSLNormalBevelFP() {
fPrevWidth = SkFloatToScalar(0.0f);
fPrevHeight = SkFloatToScalar(0.0f);
}
- void emitCode(EmitArgs& args) override {
- GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+ void onEmitCode(EmitArgs& args) override {
+ GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
GrGLSLUniformHandler* uniformHandler = args.fUniformHandler;
const char* widthUniName = nullptr;
@@ -46,7 +49,7 @@ public:
fHeightUni = uniformHandler->addUniform(kFragment_GrShaderFlag, kFloat_GrSLType,
kDefault_GrSLPrecision, "Height", &heightUniName);
- fragBuilder->codeAppendf("%s = vec4(0, 0, 1, 0);", args.fOutputColor);
+ fragBuilder->codeAppendf("%s = vec4(0.0, 0.0, 1.0, 0.0);", args.fOutputColor);
}
static void GenKey(const GrProcessor& proc, const GrGLSLCaps&,
@@ -56,7 +59,8 @@ public:
}
protected:
- void onSetData(const GrGLSLProgramDataManager& pdman, const GrProcessor& proc) override {
+ void setNormalData(const GrGLSLProgramDataManager& pdman,
+ const GrProcessor& proc) override {
const NormalBevelFP& normalBevelFP = proc.cast<NormalBevelFP>();
if (fPrevWidth != normalBevelFP.fWidth) {
diff --git a/src/core/SkNormalFlatSource.cpp b/src/core/SkNormalFlatSource.cpp
index fcb1a4f3ad..bdd65b03e9 100644
--- a/src/core/SkNormalFlatSource.cpp
+++ b/src/core/SkNormalFlatSource.cpp
@@ -8,6 +8,7 @@
#include "SkNormalFlatSource.h"
#include "SkNormalSource.h"
+#include "SkNormalSourcePriv.h"
#include "SkPoint3.h"
#include "SkReadBuffer.h"
#include "SkWriteBuffer.h"
@@ -23,12 +24,12 @@ public:
this->initClassID<NormalFlatFP>();
}
- class GLSLNormalFlatFP : public GrGLSLFragmentProcessor {
+ class GLSLNormalFlatFP : public GLSLNormalFP {
public:
GLSLNormalFlatFP() {}
- void emitCode(EmitArgs& args) override {
- GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+ void onEmitCode(EmitArgs& args) override {
+ GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
fragBuilder->codeAppendf("%s = vec4(0, 0, 1, 0);", args.fOutputColor);
}
@@ -39,7 +40,8 @@ public:
}
protected:
- void onSetData(const GrGLSLProgramDataManager& pdman, const GrProcessor& proc) override {}
+ void setNormalData(const GrGLSLProgramDataManager& pdman,
+ const GrProcessor& proc) override {}
};
void onGetGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) const override {
diff --git a/src/core/SkNormalMapSource.cpp b/src/core/SkNormalMapSource.cpp
index 2ecf1d310d..c2cda099ab 100644
--- a/src/core/SkNormalMapSource.cpp
+++ b/src/core/SkNormalMapSource.cpp
@@ -10,6 +10,7 @@
#include "SkLightingShader.h"
#include "SkMatrix.h"
#include "SkNormalSource.h"
+#include "SkNormalSourcePriv.h"
#include "SkPM4f.h"
#include "SkReadBuffer.h"
#include "SkWriteBuffer.h"
@@ -31,13 +32,13 @@ public:
this->initClassID<NormalMapFP>();
}
- class GLSLNormalMapFP : public GrGLSLFragmentProcessor {
+ class GLSLNormalMapFP : public GLSLNormalFP {
public:
GLSLNormalMapFP()
: fColumnMajorInvCTM22{0.0f} {}
- void emitCode(EmitArgs& args) override {
- GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+ void onEmitCode(EmitArgs& args) override {
+ GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
GrGLSLUniformHandler* uniformHandler = args.fUniformHandler;
// add uniform
@@ -78,7 +79,8 @@ public:
}
protected:
- void onSetData(const GrGLSLProgramDataManager& pdman, const GrProcessor& proc) override {
+ void setNormalData(const GrGLSLProgramDataManager& pdman,
+ const GrProcessor& proc) override {
const NormalMapFP& normalMapFP = proc.cast<NormalMapFP>();
const SkMatrix& invCTM = normalMapFP.invCTM();
diff --git a/src/core/SkNormalSource.h b/src/core/SkNormalSource.h
index 8cbb3e4fae..4b09d0b411 100644
--- a/src/core/SkNormalSource.h
+++ b/src/core/SkNormalSource.h
@@ -111,7 +111,7 @@ public:
/** Returns a normal source that generates a bevel for the given shape. UNIMPLEMENTED: Will
return straight-up normals only.
- @param type the type of bevel to add
+ @param type the type of bevel to add.
@param width the width of the bevel, in source space. Must be positive.
@param height the height of the plateau, in source space. Can be positive, negative,
or zero. A negative height means the simulated bevels slope downwards.
diff --git a/src/core/SkNormalSourcePriv.h b/src/core/SkNormalSourcePriv.h
new file mode 100644
index 0000000000..ce8baf61e4
--- /dev/null
+++ b/src/core/SkNormalSourcePriv.h
@@ -0,0 +1,57 @@
+/*
+ * 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 SkNormalSourcePriv_DEFINED
+#define SkNormalSourcePriv_DEFINED
+
+#if SK_SUPPORT_GPU
+#include "glsl/GrGLSLFragmentProcessor.h"
+#include "glsl/GrGLSLFragmentShaderBuilder.h"
+
+/* GLSLFragmentProcessors for NormalSourceImpls must sub-class this class and override onEmitCode,
+ * and setNormalData calls, as well as all other calls FPs normally override, except for the 2
+ * defined in this superclass.
+ * This class exists to intercept emitCode calls and emit <0, 0, 1> if the FP requires a distance
+ * vector but the GP doesn't provide it. onSetData calls need to be intercepted too because
+ * uniform handlers will be invalid in subclasses where onEmitCode isn't called.
+ * We don't need to adjust the key here since the use of a given GP (through its class ID already in
+ * the key), will determine what code gets emitted here.
+ */
+class GLSLNormalFP : public GrGLSLFragmentProcessor {
+public:
+ GLSLNormalFP()
+ : fDidIntercept(false) {}
+
+ void emitCode(EmitArgs& args) final override {
+ if (args.fFp.usesDistanceVectorField() && !args.fGpImplementsDistanceVector) {
+ GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
+ fragBuilder->codeAppendf("// GLSLNormalFP intercepted emitCode call, GP does not "
+ "implement required distance vector feature\n");
+ fragBuilder->codeAppendf("%s = vec4(0, 0, 1, 0);", args.fOutputColor);
+
+ fDidIntercept = true;
+ } else {
+ this->onEmitCode(args);
+ }
+ }
+
+ void onSetData(const GrGLSLProgramDataManager& pdman, const GrProcessor& proc) final override {
+ if (!fDidIntercept) {
+ this->setNormalData(pdman, proc);
+ }
+ }
+
+protected:
+ virtual void onEmitCode(EmitArgs& args) = 0;
+ virtual void setNormalData(const GrGLSLProgramDataManager& pdman, const GrProcessor& proc) = 0;
+
+private:
+ bool fDidIntercept;
+};
+#endif
+
+#endif
diff --git a/src/gpu/GrFragmentProcessor.cpp b/src/gpu/GrFragmentProcessor.cpp
index fdba610356..a8a4898e78 100644
--- a/src/gpu/GrFragmentProcessor.cpp
+++ b/src/gpu/GrFragmentProcessor.cpp
@@ -106,6 +106,9 @@ int GrFragmentProcessor::registerChildProcessor(sk_sp<GrFragmentProcessor> child
if (child->usesLocalCoords()) {
fUsesLocalCoords = true;
}
+ if (child->usesDistanceVectorField()) {
+ fUsesDistanceVectorField = true;
+ }
int index = fChildProcessors.count();
fChildProcessors.push_back(child.release());
diff --git a/src/gpu/GrPipeline.cpp b/src/gpu/GrPipeline.cpp
index 7767bf220d..c60a94be7e 100644
--- a/src/gpu/GrPipeline.cpp
+++ b/src/gpu/GrPipeline.cpp
@@ -48,6 +48,9 @@ GrPipeline* GrPipeline::CreateAt(void* memory, const CreateArgs& args,
if (builder.getAllowSRGBInputs()) {
pipeline->fFlags |= kAllowSRGBInputs_Flag;
}
+ if (builder.getUsesDistanceVectorField()) {
+ pipeline->fFlags |= kUsesDistanceVectorField_Flag;
+ }
if (args.fHasStencilClip) {
pipeline->fFlags |= kHasStencilClip_Flag;
}
diff --git a/src/gpu/GrPipeline.h b/src/gpu/GrPipeline.h
index 5ec572d0ae..1457dbc3f5 100644
--- a/src/gpu/GrPipeline.h
+++ b/src/gpu/GrPipeline.h
@@ -160,6 +160,9 @@ public:
bool getAllowSRGBInputs() const {
return SkToBool(fFlags & kAllowSRGBInputs_Flag);
}
+ bool usesDistanceVectorField() const {
+ return SkToBool(fFlags & kUsesDistanceVectorField_Flag);
+ }
bool hasStencilClip() const {
return SkToBool(fFlags & kHasStencilClip_Flag);
}
@@ -206,7 +209,8 @@ private:
kSnapVertices_Flag = 0x2,
kDisableOutputConversionToSRGB_Flag = 0x4,
kAllowSRGBInputs_Flag = 0x8,
- kHasStencilClip_Flag = 0x10
+ kUsesDistanceVectorField_Flag = 0x10,
+ kHasStencilClip_Flag = 0x20,
};
typedef GrPendingIOResource<GrRenderTarget, kWrite_GrIOType> RenderTarget;
diff --git a/src/gpu/GrPipelineBuilder.cpp b/src/gpu/GrPipelineBuilder.cpp
index 60cbc62cf2..864d6f1bc6 100644
--- a/src/gpu/GrPipelineBuilder.cpp
+++ b/src/gpu/GrPipelineBuilder.cpp
@@ -41,6 +41,8 @@ GrPipelineBuilder::GrPipelineBuilder(const GrPaint& paint, bool useHWAA)
paint.getDisableOutputConversionToSRGB());
this->setState(GrPipelineBuilder::kAllowSRGBInputs_Flag,
paint.getAllowSRGBInputs());
+ this->setState(GrPipelineBuilder::kUsesDistanceVectorField_Flag,
+ paint.usesDistanceVectorField());
}
//////////////////////////////////////////////////////////////////////////////s
diff --git a/src/gpu/GrPipelineBuilder.h b/src/gpu/GrPipelineBuilder.h
index dca7f36034..0c33eb344f 100644
--- a/src/gpu/GrPipelineBuilder.h
+++ b/src/gpu/GrPipelineBuilder.h
@@ -221,7 +221,13 @@ public:
*/
kAllowSRGBInputs_Flag = 0x08,
- kLast_Flag = kAllowSRGBInputs_Flag,
+ /**
+ * Signals that one or more FPs need access to the distance vector field to the nearest
+ * edge
+ */
+ kUsesDistanceVectorField_Flag = 0x10,
+
+ kLast_Flag = kUsesDistanceVectorField_Flag,
};
bool isHWAntialias() const { return SkToBool(fFlags & kHWAntialias_Flag); }
@@ -231,6 +237,8 @@ public:
return SkToBool(fFlags & kDisableOutputConversionToSRGB_Flag); }
bool getAllowSRGBInputs() const {
return SkToBool(fFlags & kAllowSRGBInputs_Flag); }
+ bool getUsesDistanceVectorField() const {
+ return SkToBool(fFlags & kUsesDistanceVectorField_Flag); }
/**
* Enable render state settings.
diff --git a/src/gpu/GrPrimitiveProcessor.h b/src/gpu/GrPrimitiveProcessor.h
index 0d5280fbd3..d27a6f31c7 100644
--- a/src/gpu/GrPrimitiveProcessor.h
+++ b/src/gpu/GrPrimitiveProcessor.h
@@ -221,6 +221,10 @@ public:
return 0.0;
}
+ /* Sub-class should override and return true if this primitive processor implements the distance
+ * vector field, a field of vectors to the nearest point in the edge of the shape. */
+ virtual bool implementsDistanceVector() const { return false; }
+
protected:
GrPrimitiveProcessor() : fVertexStride(0) {}
diff --git a/src/gpu/glsl/GrGLSLFragmentProcessor.cpp b/src/gpu/glsl/GrGLSLFragmentProcessor.cpp
index 9533d5a8cb..46945bdc6b 100644
--- a/src/gpu/glsl/GrGLSLFragmentProcessor.cpp
+++ b/src/gpu/glsl/GrGLSLFragmentProcessor.cpp
@@ -107,7 +107,8 @@ void GrGLSLFragmentProcessor::internalEmitChild(int childIndex, const char* inpu
inputColor,
childCoords,
childTexSamplers,
- childBufferSamplers);
+ childBufferSamplers,
+ args.fGpImplementsDistanceVector);
this->childProcessor(childIndex)->emitCode(childArgs);
fragBuilder->codeAppend("}\n");
diff --git a/src/gpu/glsl/GrGLSLFragmentProcessor.h b/src/gpu/glsl/GrGLSLFragmentProcessor.h
index 43614f2279..c6eb016a32 100644
--- a/src/gpu/glsl/GrGLSLFragmentProcessor.h
+++ b/src/gpu/glsl/GrGLSLFragmentProcessor.h
@@ -61,7 +61,8 @@ public:
const char* inputColor,
const GrGLSLTransformedCoordsArray& coords,
const SamplerHandle* texSamplers,
- const SamplerHandle* bufferSamplers)
+ const SamplerHandle* bufferSamplers,
+ bool gpImplementsDistanceVector)
: fFragBuilder(fragBuilder)
, fUniformHandler(uniformHandler)
, fGLSLCaps(caps)
@@ -70,7 +71,8 @@ public:
, fInputColor(inputColor)
, fCoords(coords)
, fTexSamplers(texSamplers)
- , fBufferSamplers(bufferSamplers) {}
+ , fBufferSamplers(bufferSamplers)
+ , fGpImplementsDistanceVector(gpImplementsDistanceVector){}
GrGLSLFPFragmentBuilder* fFragBuilder;
GrGLSLUniformHandler* fUniformHandler;
const GrGLSLCaps* fGLSLCaps;
@@ -80,6 +82,7 @@ public:
const GrGLSLTransformedCoordsArray& fCoords;
const SamplerHandle* fTexSamplers;
const SamplerHandle* fBufferSamplers;
+ bool fGpImplementsDistanceVector;
};
virtual void emitCode(EmitArgs&) = 0;
diff --git a/src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp b/src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp
index 5d1ba511b7..e6ecf8c171 100644
--- a/src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp
+++ b/src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp
@@ -189,6 +189,10 @@ const char* GrGLSLFragmentShaderBuilder::fragmentPosition() {
}
}
+const char* GrGLSLFragmentShaderBuilder::distanceVectorName() const {
+ return "fsDistanceVector";
+}
+
void GrGLSLFragmentShaderBuilder::appendOffsetToSample(const char* sampleIdx, Coordinates coords) {
SkASSERT(fProgramBuilder->header().fSamplePatternKey);
SkDEBUGCODE(fUsedProcessorFeatures |= GrProcessor::kSampleLocations_RequiredFeature);
diff --git a/src/gpu/glsl/GrGLSLFragmentShaderBuilder.h b/src/gpu/glsl/GrGLSLFragmentShaderBuilder.h
index 614b04f54b..6845376261 100644
--- a/src/gpu/glsl/GrGLSLFragmentShaderBuilder.h
+++ b/src/gpu/glsl/GrGLSLFragmentShaderBuilder.h
@@ -96,6 +96,10 @@ public:
*/
virtual void maskSampleCoverage(const char* mask, bool invert = false) = 0;
+ /** Returns a variable name that represents a vector to the nearest edge of the shape, in source
+ space coordinates. */
+ virtual const char* distanceVectorName() const = 0;
+
/**
* Fragment procs with child procs should call these functions before/after calling emitCode
* on a child proc.
@@ -166,6 +170,7 @@ public:
virtual SkString ensureFSCoords2D(const GrGLSLTransformedCoordsArray& coords,
int index) override;
const char* fragmentPosition() override;
+ const char* distanceVectorName() const override;
// GrGLSLFPFragmentBuilder interface.
void appendOffsetToSample(const char* sampleIdx, Coordinates) override;
@@ -235,6 +240,7 @@ private:
bool fHasSecondaryOutput;
uint8_t fUsedSampleOffsetArrays;
bool fHasInitializedSampleMask;
+ SkString fDistanceVectorOutput;
#ifdef SK_DEBUG
// some state to verify shaders and effects are consistent, this is reset between effects by
diff --git a/src/gpu/glsl/GrGLSLPrimitiveProcessor.h b/src/gpu/glsl/GrGLSLPrimitiveProcessor.h
index d726027686..a94099656b 100644
--- a/src/gpu/glsl/GrGLSLPrimitiveProcessor.h
+++ b/src/gpu/glsl/GrGLSLPrimitiveProcessor.h
@@ -42,6 +42,7 @@ public:
const GrPrimitiveProcessor& gp,
const char* outputColor,
const char* outputCoverage,
+ const char* distanceVectorName,
const SamplerHandle* texSamplers,
const SamplerHandle* bufferSamplers,
const TransformsIn& transformsIn,
@@ -54,6 +55,7 @@ public:
, fGP(gp)
, fOutputColor(outputColor)
, fOutputCoverage(outputCoverage)
+ , fDistanceVectorName(distanceVectorName)
, fTexSamplers(texSamplers)
, fBufferSamplers(bufferSamplers)
, fTransformsIn(transformsIn)
@@ -66,6 +68,7 @@ public:
const GrPrimitiveProcessor& fGP;
const char* fOutputColor;
const char* fOutputCoverage;
+ const char* fDistanceVectorName;
const SamplerHandle* fTexSamplers;
const SamplerHandle* fBufferSamplers;
const TransformsIn& fTransformsIn;
@@ -78,7 +81,6 @@ public:
*/
virtual void emitCode(EmitArgs&) = 0;
-
/** A GrGLSLPrimitiveProcessor instance can be reused with any GrGLSLPrimitiveProcessor that
produces the same stage key; this function reads data from a GrGLSLPrimitiveProcessor and
uploads any uniform variables required by the shaders created in emitCode(). The
diff --git a/src/gpu/glsl/GrGLSLProgramBuilder.cpp b/src/gpu/glsl/GrGLSLProgramBuilder.cpp
index 64bc0640b9..1f28f19bb9 100644
--- a/src/gpu/glsl/GrGLSLProgramBuilder.cpp
+++ b/src/gpu/glsl/GrGLSLProgramBuilder.cpp
@@ -87,6 +87,13 @@ void GrGLSLProgramBuilder::emitAndInstallPrimProc(const GrPrimitiveProcessor& pr
this->nameExpression(outputColor, "outputColor");
this->nameExpression(outputCoverage, "outputCoverage");
+ const char* distanceVectorName = nullptr;
+ if (this->fPipeline.usesDistanceVectorField() && proc.implementsDistanceVector()) {
+ distanceVectorName = fFS.distanceVectorName();
+ fFS.codeAppend( "// Un-normalized vector to the closed geometric edge (in source space)\n");
+ fFS.codeAppendf("vec2 %s;", distanceVectorName);
+ }
+
// Enclose custom code in a block to avoid namespace conflicts
SkString openBrace;
openBrace.printf("{ // Stage %d, %s\n", fStageIndex, proc.name());
@@ -108,6 +115,7 @@ void GrGLSLProgramBuilder::emitAndInstallPrimProc(const GrPrimitiveProcessor& pr
proc,
outputColor->c_str(),
outputCoverage->c_str(),
+ distanceVectorName,
texSamplers.begin(),
bufferSamplers.begin(),
fCoordTransforms,
@@ -161,7 +169,9 @@ void GrGLSLProgramBuilder::emitAndInstallFragProc(const GrFragmentProcessor& fp,
input.isOnes() ? nullptr : input.c_str(),
fOutCoords[index],
texSamplers.begin(),
- bufferSamplers.begin());
+ bufferSamplers.begin(),
+ this->primitiveProcessor().implementsDistanceVector());
+
fragProc->emitCode(args);
// We have to check that effects and the code they emit are consistent, ie if an effect
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-03 02:17:02 +0000