videodsp.c
Go to the documentation of this file.
1 /*
2  * Copyright (C) 2012 Ronald S. Bultje
3  *
4  * This file is part of Libav.
5  *
6  * Libav is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * Libav is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with Libav; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include "libavutil/common.h"
22 #include "videodsp.h"
23 
24 #define BIT_DEPTH 8
25 #include "videodsp_template.c"
26 #undef BIT_DEPTH
27 
28 #define BIT_DEPTH 16
29 #include "videodsp_template.c"
30 #undef BIT_DEPTH
31 
32 static void just_return(uint8_t *buf, ptrdiff_t stride, int h)
33 {
34 }
35 
36 void ff_videodsp_init(VideoDSPContext *ctx, int bpc)
37 {
38  ctx->prefetch = just_return;
39  if (bpc <= 8) {
40  ctx->emulated_edge_mc = ff_emulated_edge_mc_8;
41  } else {
42  ctx->emulated_edge_mc = ff_emulated_edge_mc_16;
43  }
44 
45  if (ARCH_ARM)
46  ff_videodsp_init_arm(ctx, bpc);
47  if (ARCH_PPC)
48  ff_videodsp_init_ppc(ctx, bpc);
49  if (ARCH_X86)
50  ff_videodsp_init_x86(ctx, bpc);
51 }
void(* prefetch)(uint8_t *buf, ptrdiff_t stride, int h)
Prefetch memory into cache (if supported by hardware).
Definition: videodsp.h:61
#define ARCH_ARM
Definition: config.h:14
static void just_return(uint8_t *buf, ptrdiff_t stride, int h)
Definition: videodsp.c:32
#define ARCH_X86
Definition: config.h:33
void ff_videodsp_init_ppc(VideoDSPContext *ctx, int bpc)
Definition: videodsp_ppc.c:32
int stride
Definition: mace.c:144
void(* emulated_edge_mc)(uint8_t *buf, const uint8_t *src, ptrdiff_t linesize, int block_w, int block_h, int src_x, int src_y, int w, int h)
Copy a rectangular area of samples to a temporary buffer and replicate the border samples...
Definition: videodsp.h:50
uint8_t
void ff_videodsp_init(VideoDSPContext *ctx, int bpc)
Definition: videodsp.c:36
void ff_videodsp_init_arm(VideoDSPContext *ctx, int bpc)
#define ARCH_PPC
Definition: config.h:24
void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc)
Definition: videodsp_init.c:99
common internal and external API header
Core video DSP helper functions.