Change ppapi_simple to support pixel format selection.

native_client_sdk/src/libraries/ppapi_simple/ps_context_2d.h

 /* Copyright 2013 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file. */
 
 #ifndef PPAPI_SIMPLE_PS_CONTEXT_2D_H_
 #define PPAPI_SIMPLE_PS_CONTEXT_2D_H_
 
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/ppb_graphics_2d.h"
 #include "ppapi/c/ppb_image_data.h"
@@ skipping 16 matching lines @@
 } PSContext2D_t;
 
 
 /*
  * PSContext2DAllocate
  *
  * Allocate or free a 2D context object which the library can use to perform
  * various PPAPI operations on the developer's behalf, such as processing view
  * change events, swapping buffers, etc...
  */
-PSContext2D_t* PSContext2DAllocate();
+PSContext2D_t* PSContext2DAllocate(PP_ImageDataFormat format);
 void PSContext2DFree(PSContext2D_t* ctx);
 
 /*
+ * PSContext2DGetNativeFormat
+ *
+ * Query the native system image format.
+ */
+PP_ImageDataFormat PSContext2DGetNativeImageDataFormat();
+
+/*
  * PSContext2DHandleEvent
  *
  * Updates the context such as allocating, freeing, or sizing graphics and
  * image resources in response to events.
  */
 int PSContext2DHandleEvent(PSContext2D_t* ctx, PSEvent* event);
 
 /*
  * PSContext2DGetBuffer
  *
  * Points the data member of the context to the raw pixels of the image for
  * writing to the screen.  The image will become visible after a swap.
  */
 int PSContext2DGetBuffer(PSContext2D_t* ctx);
 
 /*
  * PSContext2DSwapBuffer
  *
  * Swaps out the currently visible graphics with the data stored in the image
  * buffer making it visible.  The old image resource will no longer be
  * available after this call.
  */
 int PSContext2DSwapBuffer(PSContext2D_t* ctx);
 
 EXTERN_C_END
 
 #endif  /* PPAPI_SIMPLE_PS_CONTEXT_2D_H_ */