Imported Debian version 2.5.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / blockdsp.c
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 #include "version.h"
27
28 static void clear_block_8_c(int16_t *block)
29 {
30 memset(block, 0, sizeof(int16_t) * 64);
31 }
32
33 static void clear_blocks_8_c(int16_t *blocks)
34 {
35 memset(blocks, 0, sizeof(int16_t) * 6 * 64);
36 }
37
38 static void fill_block16_c(uint8_t *block, uint8_t value, int line_size, 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
48 static void fill_block8_c(uint8_t *block, uint8_t value, int line_size, int h)
49 {
50 int i;
51
52 for (i = 0; i < h; i++) {
53 memset(block, value, 8);
54 block += line_size;
55 }
56 }
57
58 av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx)
59 {
60 const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8;
61
62 c->clear_block = clear_block_8_c;
63 c->clear_blocks = clear_blocks_8_c;
64
65 c->fill_block_tab[0] = fill_block16_c;
66 c->fill_block_tab[1] = fill_block8_c;
67
68 if (ARCH_ALPHA)
69 ff_blockdsp_init_alpha(c, high_bit_depth);
70 if (ARCH_ARM)
71 ff_blockdsp_init_arm(c, high_bit_depth);
72 if (ARCH_PPC)
73 ff_blockdsp_init_ppc(c, high_bit_depth);
74 if (ARCH_X86)
75 #if FF_API_XVMC
76 ff_blockdsp_init_x86(c, high_bit_depth, avctx);
77 #else
78 ff_blockdsp_init_x86(c, high_bit_depth);
79 #endif /* FF_API_XVMC */
80 }