avfilter/vf_blend: Fix argument types, fix segfault in asm
[ffmpeg.git] / libavfilter / blend.h
1 /*
2  * Copyright (c) 2013 Paul B Mahol
3  *
4  * This file is part of FFmpeg.
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 "libavutil/eval.h"
22 #include "avfilter.h"
23
24 enum BlendMode {
25     BLEND_UNSET = -1,
26     BLEND_NORMAL,
27     BLEND_ADDITION,
28     BLEND_AND,
29     BLEND_AVERAGE,
30     BLEND_BURN,
31     BLEND_DARKEN,
32     BLEND_DIFFERENCE,
33     BLEND_DIFFERENCE128,
34     BLEND_DIVIDE,
35     BLEND_DODGE,
36     BLEND_EXCLUSION,
37     BLEND_HARDLIGHT,
38     BLEND_LIGHTEN,
39     BLEND_MULTIPLY,
40     BLEND_NEGATION,
41     BLEND_OR,
42     BLEND_OVERLAY,
43     BLEND_PHOENIX,
44     BLEND_PINLIGHT,
45     BLEND_REFLECT,
46     BLEND_SCREEN,
47     BLEND_SOFTLIGHT,
48     BLEND_SUBTRACT,
49     BLEND_VIVIDLIGHT,
50     BLEND_XOR,
51     BLEND_HARDMIX,
52     BLEND_LINEARLIGHT,
53     BLEND_GLOW,
54     BLEND_ADDITION128,
55     BLEND_NB
56 };
57
58 typedef struct FilterParams {
59     enum BlendMode mode;
60     double opacity;
61     AVExpr *e;
62     char *expr_str;
63     void (*blend)(const uint8_t *top, ptrdiff_t top_linesize,
64                   const uint8_t *bottom, ptrdiff_t bottom_linesize,
65                   uint8_t *dst, ptrdiff_t dst_linesize,
66                   ptrdiff_t width, ptrdiff_t start, ptrdiff_t end,
67                   struct FilterParams *param, double *values);
68 } FilterParams;
69
70 void ff_blend_init_x86(FilterParams *param, int is_16bit);