Handling large jpegs in CPU raster - downsample to display res and 565

src/core/SkImageCacherator.h

Index: src/core/SkImageCacherator.h
diff --git a/src/core/SkImageCacherator.h b/src/core/SkImageCacherator.h
index ac112d78cb679c519953e49563c3e2f63556a59e..3e88df65905b5dbfa2030c7a89bfd4a0a29e9d91 100644
--- a/src/core/SkImageCacherator.h
+++ b/src/core/SkImageCacherator.h
@@ -36,7 +36,7 @@ public:
      *  If not NULL, the client will be notified (->notifyAddedToCache()) when resources are
      *  added to the cache on its behalf.
      */
-    bool lockAsBitmap(SkBitmap*, const SkImage* client);
+    bool lockAsBitmap(SkBitmap*, const SkImage* client, SkScalar scaleHint = SK_Scalar1);
 
     /**
      *  Returns a ref() on the texture produced by this generator. The caller must call unref()
@@ -58,8 +58,8 @@ public:
 private:
     SkImageCacherator(SkImageGenerator*, const SkImageInfo&, const SkIPoint&, uint32_t uniqueID);
 
-    bool generateBitmap(SkBitmap*);
-    bool tryLockAsBitmap(SkBitmap*, const SkImage*);
+    bool generateBitmap(SkBitmap*, SkScalar scaleHint);
+    bool tryLockAsBitmap(SkBitmap*, const SkImage*, SkScalar scaleHint = SK_Scalar1);
 #if SK_SUPPORT_GPU
     // Returns the texture. If the cacherator is generating the texture and wants to cache it,
     // it should use the passed in key (if the key is valid).