Resubmit 2717 w/ fix workaround OS X GL bug.

git-svn-id: http://skia.googlecode.com/svn/trunk@2719 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 8 insertions, 0 deletions

diff --git a/src/gpu/GrGpu.h b/src/gpu/GrGpu.h
index 9b39319f4f..6741aec513 100644
--- a/src/gpu/GrGpu.h
+++ b/src/gpu/GrGpu.h
@@ -195,6 +195,13 @@ public:
     }
 
     /**
+     * Same as above but applies to writeTexturePixels
+     */
+    virtual GrPixelConfig preferredWritePixelsConfig(GrPixelConfig config) {
+        return config;
+    }
+
+    /**
      * OpenGL's readPixels returns the result bottom-to-top while the skia
      * API is top-to-bottom. Thus we have to do a y-axis flip. The obvious
      * solution is to have the subclass do the flip using either the CPU or GPU.
@@ -247,6 +254,7 @@ public:
 
     /**
      * Updates the pixels in a rectangle of a texture.
+     *
      * @param left          left edge of the rectangle to write (inclusive)
      * @param top           top edge of the rectangle to write (inclusive)
      * @param width         width of rectangle to write in pixels.