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 #include <stdint.h>
20 #include <string.h>
21
22 #include "config.h"
23 #include "libavutil/attributes.h"
24 #include "avcodec.h"
25 #include "blockdsp.h"
26
clear_block_c(int16_t * block)27 static void clear_block_c(int16_t *block)
28 {
29 memset(block, 0, sizeof(int16_t) * 64);
30 }
31
clear_blocks_c(int16_t * blocks)32 static void clear_blocks_c(int16_t *blocks)
33 {
34 memset(blocks, 0, sizeof(int16_t) * 6 * 64);
35 }
36
fill_block16_c(uint8_t * block,uint8_t value,ptrdiff_t line_size,int h)37 static void fill_block16_c(uint8_t *block, uint8_t value, ptrdiff_t line_size,
38 int h)
39 {
40 int i;
41
42 for (i = 0; i < h; i++) {
43 memset(block, value, 16);
44 block += line_size;
45 }
46 }
47
fill_block8_c(uint8_t * block,uint8_t value,ptrdiff_t line_size,int h)48 static void fill_block8_c(uint8_t *block, uint8_t value, ptrdiff_t line_size,
49 int h)
50 {
51 int i;
52
53 for (i = 0; i < h; i++) {
54 memset(block, value, 8);
55 block += line_size;
56 }
57 }
58
ff_blockdsp_init(BlockDSPContext * c,AVCodecContext * avctx)59 av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx)
60 {
61 c->clear_block = clear_block_c;
62 c->clear_blocks = clear_blocks_c;
63
64 c->fill_block_tab[0] = fill_block16_c;
65 c->fill_block_tab[1] = fill_block8_c;
66
67 #if ARCH_ALPHA
68 ff_blockdsp_init_alpha(c);
69 #elif ARCH_ARM
70 ff_blockdsp_init_arm(c);
71 #elif ARCH_PPC
72 ff_blockdsp_init_ppc(c);
73 #elif ARCH_X86
74 ff_blockdsp_init_x86(c, avctx);
75 #elif ARCH_MIPS
76 ff_blockdsp_init_mips(c);
77 #endif
78 }
79