Implement texel buffers

src/gpu/glsl/GrGLSLPrimitiveProcessor.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLSLPrimitiveProcessor_DEFINED
 #define GrGLSLPrimitiveProcessor_DEFINED
 
@@ skipping 25 matching lines @@
     struct EmitArgs {
         EmitArgs(GrGLSLVertexBuilder* vertBuilder,
                  GrGLSLPPFragmentBuilder* fragBuilder,
                  GrGLSLVaryingHandler* varyingHandler,
                  GrGLSLUniformHandler* uniformHandler,
                  const GrGLSLCaps* caps,
                  const GrPrimitiveProcessor& gp,
                  const char* outputColor,
                  const char* outputCoverage,
                  const SamplerArray& texSamplers,
+                 const SamplerArray& bufferSamplers,
                  const TransformsIn& transformsIn,
                  TransformsOut* transformsOut)
             : fVertBuilder(vertBuilder)
             , fFragBuilder(fragBuilder)
             , fVaryingHandler(varyingHandler)
             , fUniformHandler(uniformHandler)
             , fGLSLCaps(caps)
             , fGP(gp)
             , fOutputColor(outputColor)
             , fOutputCoverage(outputCoverage)
             , fTexSamplers(texSamplers)
+            , fBufferSamplers(bufferSamplers)
             , fTransformsIn(transformsIn)
             , fTransformsOut(transformsOut) {}
         GrGLSLVertexBuilder* fVertBuilder;
         GrGLSLPPFragmentBuilder* fFragBuilder;
         GrGLSLVaryingHandler* fVaryingHandler;
         GrGLSLUniformHandler* fUniformHandler;
         const GrGLSLCaps* fGLSLCaps;
         const GrPrimitiveProcessor& fGP;
         const char* fOutputColor;
         const char* fOutputCoverage;
         const SamplerArray& fTexSamplers;
+        const SamplerArray& fBufferSamplers;
         const TransformsIn& fTransformsIn;
         TransformsOut* fTransformsOut;
     };
 
     /**
      * This is similar to emitCode() in the base class, except it takes a full shader builder.
      * This allows the effect subclass to emit vertex code.
      */
     virtual void emitCode(EmitArgs&) = 0;
 
@@ skipping 23 matching lines @@
         Transform() : fType(kVoid_GrSLType) { fCurrentValue = SkMatrix::InvalidMatrix(); }
         UniformHandle  fHandle;
         SkMatrix       fCurrentValue;
         GrSLType       fType;
     };
 
     SkSTArray<8, SkSTArray<2, Transform, true> > fInstalledTransforms;
 };
 
 #endif