Change Atlas recycling to track current flush count and recycle if Atlas not used in current flush.

include/gpu/GrContext.h

Index: include/gpu/GrContext.h
diff --git a/include/gpu/GrContext.h b/include/gpu/GrContext.h
index ced251b204a32d4298ec895c373aef0987b84673..b6093c6273171e66ff6afa2d3d1d826b9ec7b128 100644
--- a/include/gpu/GrContext.h
+++ b/include/gpu/GrContext.h
@@ -824,6 +824,7 @@ public:
     GrFontCache* getFontCache() { return fFontCache; }
     GrDrawTarget* getTextTarget();
     const GrIndexBuffer* getQuadIndexBuffer() const;
+    uint64_t getFlushCount() const { return fFlushCount; }

[bsalomon, 2013/08/13 21:18:28]

I think this guy needs some documentation even though it is for internal use.
Let's talk a little tomorrow about this. Now that I see this I have some
thoughts about flush counts and supporting them as the code evolves (perhaps
having partial flushes in the future). We might want something close to the GL
fence model.

 
     /**
      * Stencil buffers add themselves to the cache using addStencilBuffer. findStencilBuffer is
@@ -883,6 +884,8 @@ private:
     SkTDArray<CleanUpData>          fCleanUpData;
 
     int                             fMaxTextureSizeOverride;
+    
+    uint64_t                        fFlushCount;
 
     GrContext(); // init must be called after the constructor.
     bool init(GrBackend, GrBackendContext);