Default geometry processor

src/gpu/effects/GrBezierEffect.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 "GrBezierEffect.h"
 
 #include "gl/builders/GrGLProgramBuilder.h"
@@ skipping 26 matching lines @@
 }
 
 void GrGLConicEffect::emitCode(const EmitArgs& args) {
     GrGLVertToFrag v(kVec4f_GrSLType);
     args.fPB->addVarying("ConicCoeffs", &v);
 
     const GrShaderVar& inConicCoeffs = args.fGP.cast<GrConicEffect>().inConicCoeffs();
     GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder();
     vsBuilder->codeAppendf("%s = %s;", v.vsOut(), inConicCoeffs.c_str());
 
+    // setup position varying
+    vsBuilder->codeAppendf("vec3 pos3 = %s * vec3(%s, 1);", args.fGP.uViewM(),
+                           args.fGP.inPosition());
+    vsBuilder->transformPositionToDeviceSpace("pos3");
+
     GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder();
     fsBuilder->codeAppend("float edgeAlpha;");
 
     switch (fEdgeType) {
         case kHairlineAA_GrProcessorEdgeType: {
             SkAssertResult(fsBuilder->enableFeature(
                     GrGLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature));
             fsBuilder->codeAppendf("vec3 dklmdx = dFdx(%s.xyz);", v.fsIn());
             fsBuilder->codeAppendf("vec3 dklmdy = dFdy(%s.xyz);", v.fsIn());
             fsBuilder->codeAppendf("float dfdx ="
@@ skipping 120 matching lines @@
 }
 
 void GrGLQuadEffect::emitCode(const EmitArgs& args) {
     GrGLVertToFrag v(kVec4f_GrSLType);
     args.fPB->addVarying("HairQuadEdge", &v);
 
     GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder();
     const GrShaderVar& inHairQuadEdge = args.fGP.cast<GrQuadEffect>().inHairQuadEdge();
     vsBuilder->codeAppendf("%s = %s;", v.vsOut(), inHairQuadEdge.c_str());
 
+    // setup position varying
+    vsBuilder->codeAppendf("vec3 pos3 = %s * vec3(%s, 1);", args.fGP.uViewM(),
+                           args.fGP.inPosition());
+    vsBuilder->transformPositionToDeviceSpace("pos3");
+
     GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder();
     fsBuilder->codeAppendf("float edgeAlpha;");
 
     switch (fEdgeType) {
         case kHairlineAA_GrProcessorEdgeType: {
             SkAssertResult(fsBuilder->enableFeature(
                     GrGLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature));
             fsBuilder->codeAppendf("vec2 duvdx = dFdx(%s.xy);", v.fsIn());
             fsBuilder->codeAppendf("vec2 duvdy = dFdy(%s.xy);", v.fsIn());
             fsBuilder->codeAppendf("vec2 gF = vec2(2.0 * %s.x * duvdx.x - duvdx.y,"
@@ skipping 106 matching lines @@
 }
 
 void GrGLCubicEffect::emitCode(const EmitArgs& args) {
     GrGLVertToFrag v(kVec4f_GrSLType);
     args.fPB->addVarying("CubicCoeffs", &v, GrGLShaderVar::kHigh_Precision);
 
     GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder();
     const GrShaderVar& inCubicCoeffs = args.fGP.cast<GrCubicEffect>().inCubicCoeffs();
     vsBuilder->codeAppendf("%s = %s;", v.vsOut(), inCubicCoeffs.c_str());
 
+    // setup position varying
+    vsBuilder->codeAppendf("vec3 pos3 = %s * vec3(%s, 1);", args.fGP.uViewM(),
+                           args.fGP.inPosition());
+    vsBuilder->transformPositionToDeviceSpace("pos3");
+
     GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder();
 
     GrGLShaderVar edgeAlpha("edgeAlpha", kFloat_GrSLType, 0, GrGLShaderVar::kHigh_Precision);
     GrGLShaderVar dklmdx("dklmdx", kVec3f_GrSLType, 0, GrGLShaderVar::kHigh_Precision);
     GrGLShaderVar dklmdy("dklmdy", kVec3f_GrSLType, 0, GrGLShaderVar::kHigh_Precision);
     GrGLShaderVar dfdx("dfdx", kFloat_GrSLType, 0, GrGLShaderVar::kHigh_Precision);
     GrGLShaderVar dfdy("dfdy", kFloat_GrSLType, 0, GrGLShaderVar::kHigh_Precision);
     GrGLShaderVar gF("gF", kVec2f_GrSLType, 0, GrGLShaderVar::kHigh_Precision);
     GrGLShaderVar gFM("gFM", kFloat_GrSLType, 0, GrGLShaderVar::kHigh_Precision);
     GrGLShaderVar func("func", kFloat_GrSLType, 0, GrGLShaderVar::kHigh_Precision);
@@ skipping 111 matching lines @@
                                                GrTexture*[]) {
     GrGeometryProcessor* gp;
     do {
         GrPrimitiveEdgeType edgeType = static_cast<GrPrimitiveEdgeType>(
                                                     random->nextULessThan(kGrProcessorEdgeTypeCnt));
         gp = GrCubicEffect::Create(edgeType, caps);
     } while (NULL == gp);
     return gp;
 }