path: root/libavcodec/blockdsp.h (plain)
blob: 6e27a02ba52d87367b98a9cbb5515a52caa69b59

1	/*
2	* This file is part of FFmpeg.
3	*
4	* FFmpeg is free software; you can redistribute it and/or
5	* modify it under the terms of the GNU Lesser General Public
6	* License as published by the Free Software Foundation; either
7	* version 2.1 of the License, or (at your option) any later version.
8	*
9	* FFmpeg is distributed in the hope that it will be useful,
10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12	* Lesser General Public License for more details.
13	*
14	* You should have received a copy of the GNU Lesser General Public
15	* License along with FFmpeg; if not, write to the Free Software
16	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17	*/
18
19	#ifndef AVCODEC_BLOCKDSP_H
20	#define AVCODEC_BLOCKDSP_H
21
22	#include <stddef.h>
23	#include <stdint.h>
24
25	#include "avcodec.h"
26	#include "version.h"
27
28	/* add and put pixel (decoding)
29	* Block sizes for op_pixels_func are 8x4,8x8 16x8 16x16.
30	* h for op_pixels_func is limited to { width / 2, width },
31	* but never larger than 16 and never smaller than 4. */
32	typedef void (*op_fill_func)(uint8_t *block /* align width (8 or 16) */,
33	uint8_t value, ptrdiff_t line_size, int h);
34
35	typedef struct BlockDSPContext {
36	void (*clear_block)(int16_t *block /* align 16 */);
37	void (*clear_blocks)(int16_t *blocks /* align 16 */);
38
39	op_fill_func fill_block_tab[2];
40	} BlockDSPContext;
41
42	void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx);
43
44	void ff_blockdsp_init_alpha(BlockDSPContext *c);
45	void ff_blockdsp_init_arm(BlockDSPContext *c);
46	void ff_blockdsp_init_ppc(BlockDSPContext *c);
47	void ff_blockdsp_init_x86(BlockDSPContext *c, AVCodecContext *avctx);
48	void ff_blockdsp_init_mips(BlockDSPContext *c);
49
50	#endif /* AVCODEC_BLOCKDSP_H */
51