FFmpeg  4.0
exrdsp.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * Copyright (c) 2006 Industrial Light & Magic, a division of Lucas Digital Ltd. LLC
5  *
6  * FFmpeg 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  * FFmpeg 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 FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <stdint.h>
22 
23 #include "libavutil/attributes.h"
24 #include "exrdsp.h"
25 #include "config.h"
26 
27 static void reorder_pixels_scalar(uint8_t *dst, const uint8_t *src, ptrdiff_t size)
28 {
29  const uint8_t *t1 = src;
30  int half_size = size / 2;
31  const uint8_t *t2 = src + half_size;
32  uint8_t *s = dst;
33  int i;
34 
35  for (i = 0; i < half_size; i++) {
36  *(s++) = *(t1++);
37  *(s++) = *(t2++);
38  }
39 }
40 
41 static void predictor_scalar(uint8_t *src, ptrdiff_t size)
42 {
43  ptrdiff_t i;
44 
45  for (i = 1; i < size; i++)
46  src[i] += src[i-1] - 128;
47 }
48 
50 {
53 
54  if (ARCH_X86)
56 }
const char * s
Definition: avisynth_c.h:768
int size
#define src
Definition: vp8dsp.c:254
static void predictor_scalar(uint8_t *src, ptrdiff_t size)
Definition: exrdsp.c:41
Macro definitions for various function/variable attributes.
void(* predictor)(uint8_t *src, ptrdiff_t size)
Definition: exrdsp.h:27
uint8_t
#define av_cold
Definition: attributes.h:82
#define ARCH_X86
Definition: config.h:38
#define t1
Definition: regdef.h:29
uint32_t i
Definition: intfloat.h:28
static void reorder_pixels_scalar(uint8_t *dst, const uint8_t *src, ptrdiff_t size)
Definition: exrdsp.c:27
static double c[64]
void ff_exrdsp_init_x86(ExrDSPContext *c)
Definition: exrdsp_init.c:35
av_cold void ff_exrdsp_init(ExrDSPContext *c)
Definition: exrdsp.c:49
void(* reorder_pixels)(uint8_t *dst, const uint8_t *src, ptrdiff_t size)
Definition: exrdsp.h:26
#define t2
Definition: regdef.h:30