Implement support for mixed sampled render targets

src/gpu/gl/GrGLRenderTarget.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 GrGLRenderTarget_DEFINED
 #define GrGLRenderTarget_DEFINED
@@ skipping 52 matching lines @@
 //////////////////////////////////////////////////////////////////////////////
 
 /** GL-specific subclass of GrRenderTarget. */
 class GrGLRenderTarget : public GrRenderTarget {
 public:
     struct IDDesc {
         SkAutoTUnref<GrGLFBO>       fRenderFBO;
         SkAutoTUnref<GrGLFBO>       fTextureFBO;
         GrGLuint                    fMSColorRenderbufferID;
         GrGpuResource::LifeCycle    fLifeCycle;
+        GrSampleConfig              fSampleConfig;
     };
 
     GrGLRenderTarget(GrGLGpu*, const GrSurfaceDesc&, const IDDesc&);
 
     void setViewport(const GrGLIRect& rect) { fViewport = rect; }
     const GrGLIRect& getViewport() const { return fViewport; }
 
     // For multisampled renderbuffer render targets, these will return different GrGLFBO objects. If
     // the render target is not texturable, textureFBO() returns NULL. If the render target auto
     // resolves to a texture, the same object is returned.
@@ skipping 61 matching lines @@
 
     // onGpuMemorySize() needs to know what how many color values are owned per pixel. However,
     // abandon and release zero out the IDs and the cache needs to know the size even after those
     // actions.
     uint8_t                 fColorValuesPerPixel;
 
     typedef GrRenderTarget INHERITED;
 };
 
 #endif