Add more specialized fragment builders

src/effects/GrCircleBlurFragmentProcessor.cpp

 
 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrCircleBlurFragmentProcessor.h"
 
@@ skipping 28 matching lines @@
     // The data is formatted as:
     // x,y  - the center of the circle
     // z    - the distance at which the intensity starts falling off (e.g., the start of the table)
     // w    - the inverse of the profile texture size
     fDataUniform = args.fUniformHandler->addUniform(kFragment_GrShaderFlag,
                                                     kVec4f_GrSLType,
                                                     kDefault_GrSLPrecision,
                                                     "data",
                                                     &dataName);
 
-    GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+    GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
     const char *fragmentPos = fragBuilder->fragmentPosition();
 
     if (args.fInputColor) {
         fragBuilder->codeAppendf("vec4 src=%s;", args.fInputColor);
     } else {
         fragBuilder->codeAppendf("vec4 src=vec4(1);");
     }
 
     // We just want to compute "length(vec) - %s.z + 0.5) * %s.w" but need to rearrange
     // for precision
@@ skipping 197 matching lines @@
 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrCircleBlurFragmentProcessor);
 
 const GrFragmentProcessor* GrCircleBlurFragmentProcessor::TestCreate(GrProcessorTestData* d) {
     SkScalar wh = d->fRandom->nextRangeScalar(100.f, 1000.f);
     SkScalar sigma = d->fRandom->nextRangeF(1.f,10.f);
     SkRect circle = SkRect::MakeWH(wh, wh);
     return GrCircleBlurFragmentProcessor::Create(d->fContext->textureProvider(), circle, sigma);
 }
 
 #endif