Devirtualize read/write pixels on surface.

include/gpu/GrContext.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrContext_DEFINED
 #define GrContext_DEFINED
 
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      *         pixel config or because no render target is currently set and NULL was passed for
      *         target.
      */
     bool readRenderTargetPixels(GrRenderTarget* target,
                                 int left, int top, int width, int height,
                                 GrPixelConfig config, void* buffer,
                                 size_t rowBytes = 0,
                                 uint32_t pixelOpsFlags = 0);
 
     /**
-     * Copy the src pixels [buffer, row bytes, pixel config] into a render target at the specified
-     * rectangle.
-     * @param target        the render target to write into. NULL means the current render target.
+     * Writes a rectangle of pixels to a surface.
+     * @param surface       the surface to write to.
      * @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.
-     * @param height        height of rectangle to write in pixels.
-     * @param config        the pixel config of the source buffer
-     * @param buffer        memory to read the rectangle from.
-     * @param rowBytes      number of bytes between consecutive rows. Zero means rows are tightly
-     *                      packed.
-     * @param pixelOpsFlags see PixelOpsFlags enum above.
-     *
-     * @return true if the write succeeded, false if not. The write can fail because of an
-     *         unsupported combination of target and pixel configs.
-     */
-    bool writeRenderTargetPixels(GrRenderTarget* target,
-                                 int left, int top, int width, int height,
-                                 GrPixelConfig config, const void* buffer,
-                                 size_t rowBytes = 0,
-                                 uint32_t pixelOpsFlags = 0);
-
-    /**
-     * Reads a rectangle of pixels from a texture.
-     * @param texture       the texture to read from.
-     * @param left          left edge of the rectangle to read (inclusive)
-     * @param top           top edge of the rectangle to read (inclusive)
-     * @param width         width of rectangle to read in pixels.
-     * @param height        height of rectangle to read in pixels.
-     * @param config        the pixel config of the destination buffer
-     * @param buffer        memory to read the rectangle into.
-     * @param rowBytes      number of bytes between consecutive rows. Zero means rows are tightly
-     *                      packed.
-     * @param pixelOpsFlags see PixelOpsFlags enum above.
-     *
-     * @return true if the read succeeded, false if not. The read can fail because of an unsupported
-     *         pixel config.
-     */
-    bool readTexturePixels(GrTexture* texture,
-                           int left, int top, int width, int height,
-                           GrPixelConfig config, void* buffer,
-                           size_t rowBytes = 0,
-                           uint32_t pixelOpsFlags = 0);
-
-    /**
-     * Writes a rectangle of pixels to a texture.
-     * @param texture       the render target to read from.
-     * @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.
      * @param height        height of rectangle to write in pixels.
      * @param config        the pixel config of the source buffer
      * @param buffer        memory to read pixels from
      * @param rowBytes      number of bytes between consecutive rows. Zero
      *                      means rows are tightly packed.
      * @param pixelOpsFlags see PixelOpsFlags enum above.
      * @return true if the write succeeded, false if not. The write can fail because of an
-     *         unsupported combination of texture and pixel configs.
+     *         unsupported combination of surface and src configs.
      */
-    bool writeTexturePixels(GrTexture* texture,
+    bool writeSurfacePixels(GrSurface* surface,
                             int left, int top, int width, int height,
                             GrPixelConfig config, const void* buffer,
                             size_t rowBytes,
                             uint32_t pixelOpsFlags = 0);
 
     /**
      * Copies a rectangle of texels from src to dst.
      * bounds.
      * @param dst           the surface to copy to.
      * @param src           the surface to copy from.
@@ skipping 445 matching lines @@
     }
 
     GrTexture* texture() { return fTexture; }
 
 private:
     GrContext*                    fContext;
     GrTexture*                    fTexture;
 };
 
 #endif