Create xfer processor backend.

src/gpu/gl/GrGLProgram.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrGLProgram_DEFINED
 #define GrGLProgram_DEFINED
@@ skipping 123 matching lines @@
 protected:
     typedef GrGLProgramDataManager::UniformHandle UniformHandle;
     typedef GrGLProgramDataManager::UniformInfoArray UniformInfoArray;
 
     GrGLProgram(GrGpuGL*,
                 const GrProgramDesc&,
                 const BuiltinUniformHandles&,
                 GrGLuint programID,
                 const UniformInfoArray&,
                 GrGLInstalledGeoProc* geometryProcessor,
+                GrGLInstalledXferProc* xferProcessor,
                 GrGLInstalledFragProcs* fragmentProcessors);
 
     // Sets the texture units for samplers.
     void initSamplerUniforms();
     void initSamplers(GrGLInstalledProc*, int* texUnitIdx);
 
     // Helper for setData(). Makes GL calls to specify the initial color when there is not
     // per-vertex colors.
     void setColor(const GrOptDrawState&, GrColor color);
 
@@ skipping 19 matching lines @@
     // these reflect the current values of uniforms (GL uniform values travel with program)
     MatrixState fMatrixState;
     GrColor fColor;
     uint8_t fCoverage;
     int fDstCopyTexUnit;
     BuiltinUniformHandles fBuiltinUniformHandles;
     GrGLuint fProgramID;
 
     // the installed effects
     SkAutoTDelete<GrGLInstalledGeoProc> fGeometryProcessor;
+    SkAutoTDelete<GrGLInstalledXferProc> fXferProcessor;
     SkAutoTUnref<GrGLInstalledFragProcs> fFragmentProcessors;
 
     GrProgramDesc fDesc;
     GrGpuGL* fGpu;
     GrGLProgramDataManager fProgramDataManager;
 
     friend class GrGLProgramBuilder;
 
     typedef SkRefCnt INHERITED;
 };
 
 /*
  * Below are slight specializations of the program object for the different types of programs
  * The default GrGL programs consist of at the very least a vertex and fragment shader.
  * Legacy Nvpr only has a fragment shader, 1.3+ Nvpr ignores the vertex shader, but both require
  * specialized methods for setting transform data. Both types of NVPR also require setting the
  * projection matrix through a special function call
  */
 class GrGLNvprProgramBase : public GrGLProgram {
 protected:
     GrGLNvprProgramBase(GrGpuGL*,
                         const GrProgramDesc&,
                         const BuiltinUniformHandles&,
                         GrGLuint programID,
                         const UniformInfoArray&,
+                        GrGLInstalledXferProc* xferProcessor,
                         GrGLInstalledFragProcs* fragmentProcessors);
     virtual void onSetMatrixAndRenderTargetHeight(const GrOptDrawState&);
 
     typedef GrGLProgram INHERITED;
 };
 
 class GrGLNvprProgram : public GrGLNvprProgramBase {
 public:
     virtual bool hasVertexShader() const SK_OVERRIDE { return true; }
 
 private:
     typedef GrGLNvprProgramBuilder::SeparableVaryingInfo SeparableVaryingInfo;
     typedef GrGLNvprProgramBuilder::SeparableVaryingInfoArray SeparableVaryingInfoArray;
     GrGLNvprProgram(GrGpuGL*,
                     const GrProgramDesc&,
                     const BuiltinUniformHandles&,
                     GrGLuint programID,
                     const UniformInfoArray&,
+                    GrGLInstalledXferProc* xferProcessor,
                     GrGLInstalledFragProcs* fragmentProcessors,
                     const SeparableVaryingInfoArray& separableVaryings);
     virtual void didSetData(GrGpu::DrawType) SK_OVERRIDE;
     virtual void setTransformData(const GrPendingFragmentStage&,
                                   GrGLInstalledFragProc*) SK_OVERRIDE;
 
     struct Varying {
         GrGLint     fLocation;
         SkDEBUGCODE(
             GrSLType    fType;
         );
     };
     SkTArray<Varying, true> fVaryings;
 
     friend class GrGLNvprProgramBuilder;
 
     typedef GrGLNvprProgramBase INHERITED;
 };
 
 class GrGLLegacyNvprProgram : public GrGLNvprProgramBase {
 public:
     virtual bool hasVertexShader() const SK_OVERRIDE { return false; }
 
 private:
     GrGLLegacyNvprProgram(GrGpuGL* gpu,
                           const GrProgramDesc& desc,
                           const BuiltinUniformHandles&,
                           GrGLuint programID,
                           const UniformInfoArray&,
-                          GrGLInstalledFragProcs* fragmentProcessors,
+                          GrGLInstalledXferProc* xp,
+                          GrGLInstalledFragProcs* fps,
                           int texCoordSetCnt);
     virtual void didSetData(GrGpu::DrawType) SK_OVERRIDE;
     virtual void setTransformData(const GrPendingFragmentStage&,
                                   GrGLInstalledFragProc*) SK_OVERRIDE;
 
     int fTexCoordSetCnt;
 
     friend class GrGLLegacyNvprProgramBuilder;
 
     typedef GrGLNvprProgramBase INHERITED;
 };
 
 #endif