Proposed SkCanvas API for preLoading textures to VRAM v2.0

include/core/SkDevice.h

Index: include/core/SkDevice.h
===================================================================
--- include/core/SkDevice.h	(revision 13762)
+++ include/core/SkDevice.h	(working copy)
@@ -178,6 +178,18 @@
 #endif
     };
 
+    /**
+     *  Construct an acceleration object and attach it to 'picture'
+     */
+    virtual void optimize(SkPicture* picture);
+
+    /**
+     *  Possibly use the results of an earlier 'optimize' call to render 'picture'.
+     *  Return true if all rendering has been done; false if the caller
+     *  (i.e., SkCanvas) should render normally.
+     */
+    virtual bool optimizedRender(SkPicture& picture);
+
 protected:
     enum Usage {
        kGeneral_Usage,