Added varying struct

src/gpu/gl/builders/GrGLFragmentShaderBuilder.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLFragmentShaderBuilder_DEFINED
 #define GrGLFragmentShaderBuilder_DEFINED
 
 #include "GrGLShaderBuilder.h"
 
+class GrGLVarying;
+
 /*
  * This base class encapsulates the functionality which the GP uses to build fragment shaders
  */
 class GrGLGPFragmentBuilder : public GrGLShaderBuilder {
 public:
     GrGLGPFragmentBuilder(GrGLProgramBuilder* program) : INHERITED(program) {}
     virtual ~GrGLGPFragmentBuilder() {}
     /**
      * Use of these features may require a GLSL extension to be enabled. Shaders may not compile
      * if code is added that uses one of these features without calling enableFeature()
@@ skipping 61 matching lines @@
 
     GrGLFragmentShaderBuilder(GrGLProgramBuilder* program, const GrGLProgramDesc& desc);
 
     // true public interface, defined explicitly in the abstract interfaces above
     virtual bool enableFeature(GLSLFeature) SK_OVERRIDE;
     virtual SkString ensureFSCoords2D(const GrGLProcessor::TransformedCoordsArray& coords,
                                       int index) SK_OVERRIDE;
     virtual const char* fragmentPosition() SK_OVERRIDE;
     virtual const char* dstColor() SK_OVERRIDE;
 
+private:
     // Private public interface, used by GrGLProgramBuilder to build a fragment shader
     void emitCodeToReadDstTexture();
     void enableCustomOutput();
     void enableSecondaryOutput();
     const char* getPrimaryColorOutputName() const;
     const char* getSecondaryColorOutputName() const;
     void enableSecondaryOutput(const GrGLSLExpr4& inputColor, const GrGLSLExpr4& inputCoverage);
     void combineColorAndCoverage(const GrGLSLExpr4& inputColor, const GrGLSLExpr4& inputCoverage);
     bool compileAndAttachShaders(GrGLuint programId, SkTDArray<GrGLuint>* shaderIds) const;
     void bindFragmentShaderLocations(GrGLuint programID);
 
-    /*
-     * An internal call for GrGLProgramBuilder to use to add varyings to the vertex shader
-     */
-    void addVarying(GrSLType type,
-                   const char* name,
-                   const char** fsInName,
-                   GrGLShaderVar::Precision fsPrecision = GrGLShaderVar::kDefault_Precision);
-
     // As GLProcessors emit code, there are some conditions we need to verify.  We use the below
     // state to track this.  The reset call is called per processor emitted.
     bool hasReadDstColor() const { return fHasReadDstColor; }
     bool hasReadFragmentPosition() const { return fHasReadFragmentPosition; }
     void reset() {
         fHasReadDstColor = false;
         fHasReadFragmentPosition = false;
     }
 
-private:
+    /*
+     * An internal call for GrGLProgramBuilder to use to add varyings to the vertex shader
+     */
+    void addVarying(GrGLVarying*, GrGLShaderVar::Precision);
+
     /**
      * Features that should only be enabled by GrGLFragmentShaderBuilder itself.
      */
     enum GLSLPrivateFeature {
         kFragCoordConventions_GLSLPrivateFeature = kLastGLSLFeature + 1,
         kLastGLSLPrivateFeature = kFragCoordConventions_GLSLPrivateFeature
     };
 
     // Interpretation of DstReadKey when generating code
     enum {
@@ skipping 23 matching lines @@
     bool fHasReadDstColor;
     bool fHasReadFragmentPosition;
 
     friend class GrGLNvprProgramBuilder;
     friend class GrGLProgramBuilder;
 
     typedef GrGLFPFragmentBuilder INHERITED;
 };
 
 #endif