1 /*
2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #include "swapyv12buffer.h"
12 
vp8_swap_yv12_buffer(YV12_BUFFER_CONFIG * new_frame,YV12_BUFFER_CONFIG * last_frame)13 void vp8_swap_yv12_buffer(YV12_BUFFER_CONFIG *new_frame,
14                           YV12_BUFFER_CONFIG *last_frame) {
15   unsigned char *temp;
16 
17   temp = last_frame->buffer_alloc;
18   last_frame->buffer_alloc = new_frame->buffer_alloc;
19   new_frame->buffer_alloc = temp;
20 
21   temp = last_frame->y_buffer;
22   last_frame->y_buffer = new_frame->y_buffer;
23   new_frame->y_buffer = temp;
24 
25   temp = last_frame->u_buffer;
26   last_frame->u_buffer = new_frame->u_buffer;
27   new_frame->u_buffer = temp;
28 
29   temp = last_frame->v_buffer;
30   last_frame->v_buffer = new_frame->v_buffer;
31   new_frame->v_buffer = temp;
32 }
33