Add flag for window rectangles to GrRenderTarget

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
 
 #include "GrGLIRect.h"
 #include "GrRenderTarget.h"
 #include "SkScalar.h"
 
+class GrGLCaps;
 class GrGLGpu;
 class GrGLStencilAttachment;
 
 class GrGLRenderTarget : public GrRenderTarget {
 public:
     // set fTexFBOID to this value to indicate that it is multisampled but
     // Gr doesn't know how to resolve it.
     enum { kUnresolvableFBOID = 0 };
 
     struct IDDesc {
-        GrGLuint                     fRTFBOID;
-        GrBackendObjectOwnership     fRTFBOOwnership;
-        GrGLuint                     fTexFBOID;
-        GrGLuint                     fMSColorRenderbufferID;
-        GrRenderTarget::SampleConfig fSampleConfig;
+        GrGLuint                   fRTFBOID;
+        GrBackendObjectOwnership   fRTFBOOwnership;
+        GrGLuint                   fTexFBOID;
+        GrGLuint                   fMSColorRenderbufferID;
+        bool                       fIsMixedSampled;
     };
 
     static GrGLRenderTarget* CreateWrapped(GrGLGpu*,
                                            const GrSurfaceDesc&,
                                            const IDDesc&,
                                            int stencilBits);
 
     void setViewport(const GrGLIRect& rect) { fViewport = rect; }
     const GrGLIRect& getViewport() const { return fViewport; }
 
@@ skipping 35 matching lines @@
     void onAbandon() override;
     void onRelease() override;
 
     // In protected because subclass GrGLTextureRenderTarget calls this version.
     size_t onGpuMemorySize() const override;
 
 private:
     // Constructor for instances wrapping backend objects.
     GrGLRenderTarget(GrGLGpu*, const GrSurfaceDesc&, const IDDesc&, GrGLStencilAttachment*);
 
+    static Flags ComputeFlags(const GrGLCaps&, const IDDesc&);
+
     GrGLGpu* getGLGpu() const;
     bool completeStencilAttachment() override;
 
     // The total size of the resource (including all pixels) for a single sample.
     size_t totalBytesPerSample() const;
     int msaaSamples() const;
     // The number total number of samples, including both MSAA and resolve texture samples.
     int totalSamples() const;
 
     GrGLuint    fRTFBOID;
     GrGLuint    fTexFBOID;
     GrGLuint    fMSColorRenderbufferID;
 
     GrBackendObjectOwnership fRTFBOOwnership;
 
     // when we switch to this render target we want to set the viewport to
     // only render to content area (as opposed to the whole allocation) and
     // we want the rendering to be at top left (GL has origin in bottom left)
     GrGLIRect   fViewport;
 
     // onGpuMemorySize() needs to know the VRAM footprint of the FBO(s). However, abandon and
     // release zero out the IDs and the cache needs to know the size even after those actions.
     size_t      fGpuMemorySize;
 
     typedef GrRenderTarget INHERITED;
 };
 
 #endif