Create GrGLSLVaryingHandler class for program building

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 "GrBatchFlushState.h"
 #include "GrBatchTest.h"
 #include "GrDrawTarget.h"
 #include "GrGeometryProcessor.h"
 #include "GrInvariantOutput.h"
 #include "GrPipelineBuilder.h"
 #include "GrProcessor.h"
 #include "GrResourceProvider.h"
 #include "GrVertexBuffer.h"
 #include "SkRRect.h"
 #include "SkStrokeRec.h"
 #include "SkTLazy.h"
 #include "batches/GrVertexBatch.h"
 #include "effects/GrRRectEffect.h"
 #include "glsl/GrGLSLFragmentShaderBuilder.h"
 #include "glsl/GrGLSLGeometryProcessor.h"
 #include "glsl/GrGLSLProgramBuilder.h"
 #include "glsl/GrGLSLProgramDataManager.h"
+#include "glsl/GrGLSLVarying.h"
 #include "glsl/GrGLSLVertexShaderBuilder.h"
 #include "glsl/GrGLSLUtil.h"
 
 // TODO(joshualitt) - Break this file up during GrBatch post implementation cleanup
 
 namespace {
 // TODO(joshualitt) add per vertex colors
 struct CircleVertex {
     SkPoint  fPos;
     SkPoint  fOffset;
@@ skipping 54 matching lines @@
 
     class GLSLProcessor : public GrGLSLGeometryProcessor {
     public:
         GLSLProcessor()
             : fColor(GrColor_ILLEGAL) {}
 
         void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override{
             const CircleEdgeEffect& ce = args.fGP.cast<CircleEdgeEffect>();
             GrGLSLGPBuilder* pb = args.fPB;
             GrGLSLVertexBuilder* vertBuilder = args.fVertBuilder;
+            GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler;
 
             // emit attributes
-            vertBuilder->emitAttributes(ce);
+            varyingHandler->emitAttributes(ce);
 
             GrGLSLVertToFrag v(kVec4f_GrSLType);
-            args.fPB->addVarying("CircleEdge", &v);
+            varyingHandler->addVarying("CircleEdge", &v);
             vertBuilder->codeAppendf("%s = %s;", v.vsOut(), ce.inCircleEdge()->fName);
 
             GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
             // setup pass through color
             if (!ce.colorIgnored()) {
                 this->setupUniformColor(pb, fragBuilder, args.fOutputColor, &fColorUniform);
             }
 
             // Setup position
             this->setupPosition(pb, vertBuilder, gpArgs, ce.inPosition()->fName);
 
             // emit transforms
             this->emitTransforms(args.fPB,
                                  vertBuilder,
+                                 varyingHandler,
                                  gpArgs->fPositionVar,
                                  ce.inPosition()->fName,
                                  ce.localMatrix(),
                                  args.fTransformsIn,
                                  args.fTransformsOut);
 
             fragBuilder->codeAppendf("float d = length(%s.xy);", v.fsIn());
             fragBuilder->codeAppendf("float edgeAlpha = clamp(%s.z * (1.0 - d), 0.0, 1.0);",
                                      v.fsIn());
             if (ce.isStroked()) {
@@ skipping 114 matching lines @@
 
     class GLSLProcessor : public GrGLSLGeometryProcessor {
     public:
         GLSLProcessor()
             : fColor(GrColor_ILLEGAL) {}
 
         void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override{
             const EllipseEdgeEffect& ee = args.fGP.cast<EllipseEdgeEffect>();
             GrGLSLGPBuilder* pb = args.fPB;
             GrGLSLVertexBuilder* vertBuilder = args.fVertBuilder;
+            GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler;
 
             // emit attributes
-            vertBuilder->emitAttributes(ee);
+            varyingHandler->emitAttributes(ee);
 
             GrGLSLVertToFrag ellipseOffsets(kVec2f_GrSLType);
-            args.fPB->addVarying("EllipseOffsets", &ellipseOffsets);
+            varyingHandler->addVarying("EllipseOffsets", &ellipseOffsets);
             vertBuilder->codeAppendf("%s = %s;", ellipseOffsets.vsOut(),
                                    ee.inEllipseOffset()->fName);
 
             GrGLSLVertToFrag ellipseRadii(kVec4f_GrSLType);
-            args.fPB->addVarying("EllipseRadii", &ellipseRadii);
+            varyingHandler->addVarying("EllipseRadii", &ellipseRadii);
             vertBuilder->codeAppendf("%s = %s;", ellipseRadii.vsOut(),
                                    ee.inEllipseRadii()->fName);
 
             GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
             // setup pass through color
             if (!ee.colorIgnored()) {
                 this->setupUniformColor(pb, fragBuilder, args.fOutputColor, &fColorUniform);
             }
 
             // Setup position
             this->setupPosition(pb, vertBuilder, gpArgs, ee.inPosition()->fName);
 
             // emit transforms
             this->emitTransforms(args.fPB,
                                  vertBuilder,
+                                 varyingHandler,
                                  gpArgs->fPositionVar,
                                  ee.inPosition()->fName,
                                  ee.localMatrix(),
                                  args.fTransformsIn,
                                  args.fTransformsOut);
 
             // for outer curve
             fragBuilder->codeAppendf("vec2 scaledOffset = %s*%s.xy;", ellipseOffsets.fsIn(),
                                      ellipseRadii.fsIn());
             fragBuilder->codeAppend("float test = dot(scaledOffset, scaledOffset) - 1.0;");
@@ skipping 134 matching lines @@
 
     class GLSLProcessor : public GrGLSLGeometryProcessor {
     public:
         GLSLProcessor()
             : fViewMatrix(SkMatrix::InvalidMatrix()), fColor(GrColor_ILLEGAL) {}
 
         void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override {
             const DIEllipseEdgeEffect& ee = args.fGP.cast<DIEllipseEdgeEffect>();
             GrGLSLGPBuilder* pb = args.fPB;
             GrGLSLVertexBuilder* vertBuilder = args.fVertBuilder;
+            GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler;
 
             // emit attributes
-            vertBuilder->emitAttributes(ee);
+            varyingHandler->emitAttributes(ee);
 
             GrGLSLVertToFrag offsets0(kVec2f_GrSLType);
-            args.fPB->addVarying("EllipseOffsets0", &offsets0);
+            varyingHandler->addVarying("EllipseOffsets0", &offsets0);
             vertBuilder->codeAppendf("%s = %s;", offsets0.vsOut(),
                                    ee.inEllipseOffsets0()->fName);
 
             GrGLSLVertToFrag offsets1(kVec2f_GrSLType);
-            args.fPB->addVarying("EllipseOffsets1", &offsets1);
+            varyingHandler->addVarying("EllipseOffsets1", &offsets1);
             vertBuilder->codeAppendf("%s = %s;", offsets1.vsOut(),
                                    ee.inEllipseOffsets1()->fName);
 
             GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
             // setup pass through color
             if (!ee.colorIgnored()) {
                 this->setupUniformColor(pb, fragBuilder, args.fOutputColor, &fColorUniform);
             }
 
             // Setup position
             this->setupPosition(pb,
                                 vertBuilder,
                                 gpArgs,
                                 ee.inPosition()->fName,
                                 ee.viewMatrix(),
                                 &fViewMatrixUniform);
 
             // emit transforms
             this->emitTransforms(args.fPB,
                                  vertBuilder,
+                                 varyingHandler,
                                  gpArgs->fPositionVar,
                                  ee.inPosition()->fName,
                                  args.fTransformsIn,
                                  args.fTransformsOut);
 
             SkAssertResult(fragBuilder->enableFeature(
                     GrGLSLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature));
             // for outer curve
             fragBuilder->codeAppendf("vec2 scaledOffset = %s.xy;", offsets0.fsIn());
             fragBuilder->codeAppend("float test = dot(scaledOffset, scaledOffset) - 1.0;");
@@ skipping 1589 matching lines @@
 }
 
 DRAW_BATCH_TEST_DEFINE(RRectBatch) {
     SkMatrix viewMatrix = GrTest::TestMatrixRectStaysRect(random);
     GrColor color = GrRandomColor(random);
     const SkRRect& rrect = GrTest::TestRRectSimple(random);
     return create_rrect_batch(color, viewMatrix, rrect, GrTest::TestStrokeRec(random));
 }
 
 #endif