Draft change to start pulling uniform color into GP

src/gpu/GrOvalRenderer.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrOvalRenderer.h"
 
 #include "GrProcessor.h"
@@ skipping 56 matching lines @@
     const GrAttribute* inCircleEdge() const { return fInCircleEdge; }
     virtual ~CircleEdgeEffect() {}
 
     virtual const char* name() const SK_OVERRIDE { return "CircleEdge"; }
 
     inline bool isStroked() const { return fStroke; }
 
     class GLProcessor : public GrGLGeometryProcessor {
     public:
         GLProcessor(const GrGeometryProcessor&,
-                    const GrBatchTracker&) {}
+                    const GrBatchTracker&)
+            : fColor(GrColor_ILLEGAL) {}
 
         virtual void emitCode(const EmitArgs& args) SK_OVERRIDE {
             const CircleEdgeEffect& ce = args.fGP.cast<CircleEdgeEffect>();
+            GrGLGPBuilder* pb = args.fPB;
+            const BatchTracker& local = args.fBT.cast<BatchTracker>();
             GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder();
 
             GrGLVertToFrag v(kVec4f_GrSLType);
             args.fPB->addVarying("CircleEdge", &v);
             vsBuilder->codeAppendf("%s = %s;", v.vsOut(), ce.inCircleEdge()->fName);
 
+            // Setup pass through color
+            this->setupColor(pb, local.fInputColorType, args.fOutputColor, NULL, &fColorUniform);
+
             // setup coord outputs
             vsBuilder->codeAppendf("%s = %s;", vsBuilder->positionCoords(), ce.inPosition()->fName);
             vsBuilder->codeAppendf("%s = %s;", vsBuilder->localCoords(), ce.inPosition()->fName);
 
             // setup position varying
             vsBuilder->codeAppendf("%s = %s * vec3(%s, 1);", vsBuilder->glPosition(),
                                    vsBuilder->uViewM(), ce.inPosition()->fName);
 
             GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder();
             fsBuilder->codeAppendf("float d = length(%s.xy);", v.fsIn());
             fsBuilder->codeAppendf("float edgeAlpha = clamp(%s.z - d, 0.0, 1.0);", v.fsIn());
             if (ce.isStroked()) {
                 fsBuilder->codeAppendf("float innerAlpha = clamp(d - %s.w, 0.0, 1.0);",
                                        v.fsIn());
                 fsBuilder->codeAppend("edgeAlpha *= innerAlpha;");
             }
 
             fsBuilder->codeAppendf("%s = vec4(edgeAlpha);", args.fOutputCoverage);
         }
 
         static void GenKey(const GrGeometryProcessor& processor,
-                           const GrBatchTracker&,
+                           const GrBatchTracker& bt,
                            const GrGLCaps&,
                            GrProcessorKeyBuilder* b) {
+            const BatchTracker& local = bt.cast<BatchTracker>();
             const CircleEdgeEffect& circleEffect = processor.cast<CircleEdgeEffect>();
-            b->add32(circleEffect.isStroked());
+            b->add32(circleEffect.isStroked() << 16 | local.fInputColorType);
         }
 
-        virtual void setData(const GrGLProgramDataManager&,
-                             const GrGeometryProcessor&,
-                             const GrBatchTracker&) SK_OVERRIDE {}
+        virtual void setData(const GrGLProgramDataManager& pdman,
+                             const GrGeometryProcessor& gp,
+                             const GrBatchTracker& bt) SK_OVERRIDE {
+            const BatchTracker& local = bt.cast<BatchTracker>();
+            if (kUniform_GrGPInput == local.fInputColorType && local.fColor != fColor) {
+                GrGLfloat c[4];
+                GrColorToRGBAFloat(local.fColor, c);
+                pdman.set4fv(fColorUniform, 1, c);
+                fColor = local.fColor;
+            }
+        }
 
     private:
+        GrColor fColor;
+        UniformHandle fColorUniform;
         typedef GrGLGeometryProcessor INHERITED;
     };
 
     virtual void getGLProcessorKey(const GrBatchTracker& bt,
                                    const GrGLCaps& caps,
                                    GrProcessorKeyBuilder* b) const SK_OVERRIDE {
         GLProcessor::GenKey(*this, bt, caps, b);
     }
 
     virtual GrGLGeometryProcessor* createGLInstance(const GrBatchTracker& bt) const SK_OVERRIDE {
         return SkNEW_ARGS(GLProcessor, (*this, bt));
     }
 
+    void initBatchTracker(GrBatchTracker* bt, const InitBT& init) const SK_OVERRIDE {
+        BatchTracker* local = bt->cast<BatchTracker>();
+        local->fInputColorType = GetColorInputType(&local->fColor, this->color(), init, false);
+
+    }
+
+    bool onCanMakeEqual(const GrBatchTracker& m, const GrBatchTracker& t) const SK_OVERRIDE {
+        const BatchTracker& mine = m.cast<BatchTracker>();
+        const BatchTracker& theirs = t.cast<BatchTracker>();
+        return CanCombineOutput(mine.fInputColorType, mine.fColor,
+                                theirs.fInputColorType, theirs.fColor);
+    }
+
 private:
     CircleEdgeEffect(GrColor color, bool stroke) : INHERITED(color) {
         this->initClassID<CircleEdgeEffect>();
         fInPosition = &this->addVertexAttrib(GrAttribute("inPosition", kVec2f_GrVertexAttribType));
         fInCircleEdge = &this->addVertexAttrib(GrAttribute("inCircleEdge",
                                                            kVec4f_GrVertexAttribType));
         fStroke = stroke;
     }
 
     virtual bool onIsEqual(const GrGeometryProcessor& other) const SK_OVERRIDE {
         const CircleEdgeEffect& cee = other.cast<CircleEdgeEffect>();
         return cee.fStroke == fStroke;
     }
 
     virtual void onGetInvariantOutputCoverage(GrInitInvariantOutput* out) const SK_OVERRIDE {
         out->setUnknownSingleComponent();
     }
 
+    struct BatchTracker {
+        GrGPInput fInputColorType;
+        GrColor fColor;
+    };
+
     const GrAttribute* fInPosition;
     const GrAttribute* fInCircleEdge;
     bool fStroke;
 
     GR_DECLARE_GEOMETRY_PROCESSOR_TEST;
 
     typedef GrGeometryProcessor INHERITED;
 };
 
 GR_DEFINE_GEOMETRY_PROCESSOR_TEST(CircleEdgeEffect);
@@ skipping 27 matching lines @@
 
     const GrAttribute* inPosition() const { return fInPosition; }
     const GrAttribute* inEllipseOffset() const { return fInEllipseOffset; }
     const GrAttribute* inEllipseRadii() const { return fInEllipseRadii; }
 
     inline bool isStroked() const { return fStroke; }
 
     class GLProcessor : public GrGLGeometryProcessor {
     public:
         GLProcessor(const GrGeometryProcessor&,
-                    const GrBatchTracker&) {}
+                    const GrBatchTracker&)
+            : fColor(GrColor_ILLEGAL) {}
 
         virtual void emitCode(const EmitArgs& args) SK_OVERRIDE {
             const EllipseEdgeEffect& ee = args.fGP.cast<EllipseEdgeEffect>();
-
+            GrGLGPBuilder* pb = args.fPB;
+            const BatchTracker& local = args.fBT.cast<BatchTracker>();
             GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder();
 
             GrGLVertToFrag ellipseOffsets(kVec2f_GrSLType);
             args.fPB->addVarying("EllipseOffsets", &ellipseOffsets);
             vsBuilder->codeAppendf("%s = %s;", ellipseOffsets.vsOut(),
                                    ee.inEllipseOffset()->fName);
 
             GrGLVertToFrag ellipseRadii(kVec4f_GrSLType);
             args.fPB->addVarying("EllipseRadii", &ellipseRadii);
             vsBuilder->codeAppendf("%s = %s;", ellipseRadii.vsOut(),
                                    ee.inEllipseRadii()->fName);
 
+            // Setup pass through color
+            this->setupColor(pb, local.fInputColorType, args.fOutputColor, NULL, &fColorUniform);
+
             // setup coord outputs
             vsBuilder->codeAppendf("%s = %s;", vsBuilder->positionCoords(), ee.inPosition()->fName);
             vsBuilder->codeAppendf("%s = %s;", vsBuilder->localCoords(), ee.inPosition()->fName);
 
             // setup position varying
             vsBuilder->codeAppendf("%s = %s * vec3(%s, 1);", vsBuilder->glPosition(),
                                    vsBuilder->uViewM(), ee.inPosition()->fName);
 
             // for outer curve
             GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder();
@@ skipping 16 matching lines @@
                 fsBuilder->codeAppendf("grad = 2.0*scaledOffset*%s.zw;",
                                        ellipseRadii.fsIn());
                 fsBuilder->codeAppend("invlen = inversesqrt(dot(grad, grad));");
                 fsBuilder->codeAppend("edgeAlpha *= clamp(0.5+test*invlen, 0.0, 1.0);");
             }
 
             fsBuilder->codeAppendf("%s = vec4(edgeAlpha);", args.fOutputCoverage);
         }
 
         static void GenKey(const GrGeometryProcessor& processor,
-                           const GrBatchTracker&,
+                           const GrBatchTracker& bt,
                            const GrGLCaps&,
                            GrProcessorKeyBuilder* b) {
+            const BatchTracker& local = bt.cast<BatchTracker>();
             const EllipseEdgeEffect& ellipseEffect = processor.cast<EllipseEdgeEffect>();
-            b->add32(ellipseEffect.isStroked());
+            b->add32(ellipseEffect.isStroked() << 16 | local.fInputColorType);
         }
 
-        virtual void setData(const GrGLProgramDataManager&,
-                             const GrGeometryProcessor&,
-                             const GrBatchTracker&) SK_OVERRIDE {
+        virtual void setData(const GrGLProgramDataManager& pdman,
+                             const GrGeometryProcessor& gp,
+                             const GrBatchTracker& bt) SK_OVERRIDE {
+            const BatchTracker& local = bt.cast<BatchTracker>();
+            if (kUniform_GrGPInput == local.fInputColorType && local.fColor != fColor) {
+                GrGLfloat c[4];
+                GrColorToRGBAFloat(local.fColor, c);
+                pdman.set4fv(fColorUniform, 1, c);
+                fColor = local.fColor;
+            }
         }
 
     private:
+        GrColor fColor;
+        UniformHandle fColorUniform;
+
         typedef GrGLGeometryProcessor INHERITED;
     };
 
     virtual void getGLProcessorKey(const GrBatchTracker& bt,
                                    const GrGLCaps& caps,
                                    GrProcessorKeyBuilder* b) const SK_OVERRIDE {
         GLProcessor::GenKey(*this, bt, caps, b);
     }
 
     virtual GrGLGeometryProcessor* createGLInstance(const GrBatchTracker& bt) const SK_OVERRIDE {
         return SkNEW_ARGS(GLProcessor, (*this, bt));
     }
 
+    void initBatchTracker(GrBatchTracker* bt, const InitBT& init) const SK_OVERRIDE {
+        BatchTracker* local = bt->cast<BatchTracker>();
+        local->fInputColorType = GetColorInputType(&local->fColor, this->color(), init, false);
+    }
+
+    bool onCanMakeEqual(const GrBatchTracker& m, const GrBatchTracker& t) const SK_OVERRIDE {
+        const BatchTracker& mine = m.cast<BatchTracker>();
+        const BatchTracker& theirs = t.cast<BatchTracker>();
+        return CanCombineOutput(mine.fInputColorType, mine.fColor,
+                                theirs.fInputColorType, theirs.fColor);
+    }
+
 private:
     EllipseEdgeEffect(GrColor color, bool stroke) : INHERITED(color) {
         this->initClassID<EllipseEdgeEffect>();
         fInPosition = &this->addVertexAttrib(GrAttribute("inPosition", kVec2f_GrVertexAttribType));
         fInEllipseOffset = &this->addVertexAttrib(GrAttribute("inEllipseOffset",
                                                               kVec2f_GrVertexAttribType));
         fInEllipseRadii = &this->addVertexAttrib(GrAttribute("inEllipseRadii",
                                                              kVec4f_GrVertexAttribType));
         fStroke = stroke;
     }
 
     virtual bool onIsEqual(const GrGeometryProcessor& other) const SK_OVERRIDE {
         const EllipseEdgeEffect& eee = other.cast<EllipseEdgeEffect>();
         return eee.fStroke == fStroke;
     }
 
     virtual void onGetInvariantOutputCoverage(GrInitInvariantOutput* out) const SK_OVERRIDE {
         out->setUnknownSingleComponent();
     }
 
+    struct BatchTracker {
+        GrGPInput fInputColorType;
+        GrColor fColor;
+    };
+
     const GrAttribute* fInPosition;
     const GrAttribute* fInEllipseOffset;
     const GrAttribute* fInEllipseRadii;
     bool fStroke;
 
     GR_DECLARE_GEOMETRY_PROCESSOR_TEST;
 
     typedef GrGeometryProcessor INHERITED;
 };
 
@@ skipping 31 matching lines @@
 
     const GrAttribute* inPosition() const { return fInPosition; }
     const GrAttribute* inEllipseOffsets0() const { return fInEllipseOffsets0; }
     const GrAttribute* inEllipseOffsets1() const { return fInEllipseOffsets1; }
 
     inline Mode getMode() const { return fMode; }
 
     class GLProcessor : public GrGLGeometryProcessor {
     public:
         GLProcessor(const GrGeometryProcessor&,
-                    const GrBatchTracker&) {}
+                    const GrBatchTracker&)
+            : fColor(GrColor_ILLEGAL) {}
 
         virtual void emitCode(const EmitArgs& args) SK_OVERRIDE {
             const DIEllipseEdgeEffect& ee = args.fGP.cast<DIEllipseEdgeEffect>();
-
+            GrGLGPBuilder* pb = args.fPB;
+            const BatchTracker& local = args.fBT.cast<BatchTracker>();
             GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder();
 
             GrGLVertToFrag offsets0(kVec2f_GrSLType);
             args.fPB->addVarying("EllipseOffsets0", &offsets0);
             vsBuilder->codeAppendf("%s = %s;", offsets0.vsOut(),
                                    ee.inEllipseOffsets0()->fName);
 
             GrGLVertToFrag offsets1(kVec2f_GrSLType);
             args.fPB->addVarying("EllipseOffsets1", &offsets1);
             vsBuilder->codeAppendf("%s = %s;", offsets1.vsOut(),
                                    ee.inEllipseOffsets1()->fName);
 
+            // Setup pass through color
+            this->setupColor(pb, local.fInputColorType, args.fOutputColor, NULL, &fColorUniform);
+
             // setup coord outputs
             vsBuilder->codeAppendf("%s = %s;", vsBuilder->positionCoords(), ee.inPosition()->fName);
             vsBuilder->codeAppendf("%s = %s;", vsBuilder->localCoords(), ee.inPosition()->fName);
 
             // setup position varying
             vsBuilder->codeAppendf("%s = %s * vec3(%s, 1);", vsBuilder->glPosition(),
                                    vsBuilder->uViewM(), ee.inPosition()->fName);
 
             GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder();
             SkAssertResult(fsBuilder->enableFeature(
@@ skipping 30 matching lines @@
                                        offsets1.fsIn(), offsets1.fsIn(), offsets1.fsIn(),
                                        offsets1.fsIn());
                 fsBuilder->codeAppend("invlen = inversesqrt(dot(grad, grad));");
                 fsBuilder->codeAppend("edgeAlpha *= clamp(0.5+test*invlen, 0.0, 1.0);");
             }
 
             fsBuilder->codeAppendf("%s = vec4(edgeAlpha);", args.fOutputCoverage);
         }
 
         static void GenKey(const GrGeometryProcessor& processor,
-                           const GrBatchTracker&,
+                           const GrBatchTracker& bt,
                            const GrGLCaps&,
                            GrProcessorKeyBuilder* b) {
+            const BatchTracker& local = bt.cast<BatchTracker>();
             const DIEllipseEdgeEffect& ellipseEffect = processor.cast<DIEllipseEdgeEffect>();
-
-            b->add32(ellipseEffect.getMode());
+            b->add32(ellipseEffect.getMode() << 16 | local.fInputColorType);
         }
 
-        virtual void setData(const GrGLProgramDataManager&,
-                             const GrGeometryProcessor&,
-                             const GrBatchTracker&) SK_OVERRIDE {
+        virtual void setData(const GrGLProgramDataManager& pdman,
+                             const GrGeometryProcessor& gp,
+                             const GrBatchTracker& bt) SK_OVERRIDE {
+            const BatchTracker& local = bt.cast<BatchTracker>();
+            if (kUniform_GrGPInput == local.fInputColorType && local.fColor != fColor) {
+                GrGLfloat c[4];
+                GrColorToRGBAFloat(local.fColor, c);
+                pdman.set4fv(fColorUniform, 1, c);
+                fColor = local.fColor;
+            }
         }
 
     private:
+        GrColor fColor;
+        UniformHandle fColorUniform;
+
         typedef GrGLGeometryProcessor INHERITED;
     };
 
     virtual void getGLProcessorKey(const GrBatchTracker& bt,
                                    const GrGLCaps& caps,
                                    GrProcessorKeyBuilder* b) const SK_OVERRIDE {
         GLProcessor::GenKey(*this, bt, caps, b);
     }
 
     virtual GrGLGeometryProcessor* createGLInstance(const GrBatchTracker& bt) const SK_OVERRIDE {
         return SkNEW_ARGS(GLProcessor, (*this, bt));
     }
 
+    void initBatchTracker(GrBatchTracker* bt, const InitBT& init) const SK_OVERRIDE {
+        BatchTracker* local = bt->cast<BatchTracker>();
+        local->fInputColorType = GetColorInputType(&local->fColor, this->color(), init, false);
+    }
+
+    bool onCanMakeEqual(const GrBatchTracker& m, const GrBatchTracker& t) const SK_OVERRIDE {
+        const BatchTracker& mine = m.cast<BatchTracker>();
+        const BatchTracker& theirs = t.cast<BatchTracker>();
+        return CanCombineOutput(mine.fInputColorType, mine.fColor,
+                                theirs.fInputColorType, theirs.fColor);
+    }
+
 private:
     DIEllipseEdgeEffect(GrColor color, Mode mode) : INHERITED(color) {
         this->initClassID<DIEllipseEdgeEffect>();
         fInPosition = &this->addVertexAttrib(GrAttribute("inPosition", kVec2f_GrVertexAttribType));
         fInEllipseOffsets0 = &this->addVertexAttrib(GrAttribute("inEllipseOffsets0",
                                                                 kVec2f_GrVertexAttribType));
         fInEllipseOffsets1 = &this->addVertexAttrib(GrAttribute("inEllipseOffsets1",
                                                                 kVec2f_GrVertexAttribType));
         fMode = mode;
     }
 
     virtual bool onIsEqual(const GrGeometryProcessor& other) const SK_OVERRIDE {
         const DIEllipseEdgeEffect& eee = other.cast<DIEllipseEdgeEffect>();
         return eee.fMode == fMode;
     }
 
     virtual void onGetInvariantOutputCoverage(GrInitInvariantOutput* out) const SK_OVERRIDE {
         out->setUnknownSingleComponent();
     }
 
+    struct BatchTracker {
+        GrGPInput fInputColorType;
+        GrColor fColor;
+    };
+
     const GrAttribute* fInPosition;
     const GrAttribute* fInEllipseOffsets0;
     const GrAttribute* fInEllipseOffsets1;
     Mode fMode;
 
     GR_DECLARE_GEOMETRY_PROCESSOR_TEST;
 
     typedef GrGeometryProcessor INHERITED;
 };
 
@@ skipping 768 matching lines @@
         int indexCnt = isStrokeOnly ? SK_ARRAY_COUNT(gRRectIndices) - 6 :
                                       SK_ARRAY_COUNT(gRRectIndices);
         target->setIndexSourceToBuffer(indexBuffer);
         target->drawIndexedInstances(drawState, effect, kTriangles_GrPrimitiveType, 1, 16, indexCnt,
                                      &bounds);
     }
 
     target->resetIndexSource();
     return true;
 }