Add support for vertex and geometry shader textures

include/gpu/GrTextureAccess.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTextureAccess_DEFINED
 #define GrTextureAccess_DEFINED
 
@@ skipping 11 matching lines @@
 public:
     /**
      * Must be initialized before adding to a GrProcessor's texture access list.
      */
     GrTextureAccess();
 
     GrTextureAccess(GrTexture*, const GrTextureParams&);
 
     explicit GrTextureAccess(GrTexture*,
                              GrTextureParams::FilterMode = GrTextureParams::kNone_FilterMode,
-                             SkShader::TileMode tileXAndY = SkShader::kClamp_TileMode);
+                             SkShader::TileMode tileXAndY = SkShader::kClamp_TileMode,
+                             GrShaderFlags visibility = kFragment_GrShaderFlag);
 
-    void reset(GrTexture*, const GrTextureParams&);
+    void reset(GrTexture*, const GrTextureParams&,
+               GrShaderFlags visibility = kFragment_GrShaderFlag);
     void reset(GrTexture*,
                GrTextureParams::FilterMode = GrTextureParams::kNone_FilterMode,
-               SkShader::TileMode tileXAndY = SkShader::kClamp_TileMode);
+               SkShader::TileMode tileXAndY = SkShader::kClamp_TileMode,
+               GrShaderFlags visibility = kFragment_GrShaderFlag);
 
     bool operator==(const GrTextureAccess& that) const {
-        return this->getTexture() == that.getTexture() && fParams == that.fParams;
+        return this->getTexture() == that.getTexture() &&
+               fParams == that.fParams &&
+               fVisibility == that.fVisibility;
     }
 
     bool operator!=(const GrTextureAccess& other) const { return !(*this == other); }
 
     GrTexture* getTexture() const { return fTexture.get(); }
+    GrSLType getSamplerType() const { return this->getTexture()->getSamplerType(); }
+    GrShaderFlags getVisibility() const { return fVisibility; }
 
     /**
      * For internal use by GrProcessor.
      */
     const GrGpuResourceRef* getProgramTexture() const { return &fTexture; }
 
     const GrTextureParams& getParams() const { return fParams; }
 
 private:
 
     typedef GrTGpuResourceRef<GrTexture> ProgramTexture;
 
     ProgramTexture                  fTexture;
     GrTextureParams                 fParams;
+    GrShaderFlags                   fVisibility;
 
     typedef SkNoncopyable INHERITED;
 };
 
 #endif