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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 #ifndef AVFILTER_BLEND_H
22 #define AVFILTER_BLEND_H
23 
24 #include "libavutil/eval.h"
25 #include "avfilter.h"
26 
27 enum BlendMode {
28     BLEND_UNSET = -1,
29     BLEND_NORMAL,
30     BLEND_ADDITION,
31     BLEND_AND,
32     BLEND_AVERAGE,
33     BLEND_BURN,
34     BLEND_DARKEN,
35     BLEND_DIFFERENCE,
36     BLEND_GRAINEXTRACT,
37     BLEND_DIVIDE,
38     BLEND_DODGE,
39     BLEND_EXCLUSION,
40     BLEND_HARDLIGHT,
41     BLEND_LIGHTEN,
42     BLEND_MULTIPLY,
43     BLEND_NEGATION,
44     BLEND_OR,
45     BLEND_OVERLAY,
46     BLEND_PHOENIX,
47     BLEND_PINLIGHT,
48     BLEND_REFLECT,
49     BLEND_SCREEN,
50     BLEND_SOFTLIGHT,
51     BLEND_SUBTRACT,
52     BLEND_VIVIDLIGHT,
53     BLEND_XOR,
54     BLEND_HARDMIX,
55     BLEND_LINEARLIGHT,
56     BLEND_GLOW,
57     BLEND_GRAINMERGE,
58     BLEND_MULTIPLY128,
59     BLEND_HEAT,
60     BLEND_FREEZE,
61     BLEND_EXTREMITY,
62     BLEND_SOFTDIFFERENCE,
63     BLEND_GEOMETRIC,
64     BLEND_HARMONIC,
65     BLEND_BLEACH,
66     BLEND_STAIN,
67     BLEND_INTERPOLATE,
68     BLEND_HARDOVERLAY,
69     BLEND_NB
70 };
71 
72 typedef struct FilterParams {
73     enum BlendMode mode;
74     double opacity;
75     AVExpr *e;
76     char *expr_str;
77     void (*blend)(const uint8_t *top, ptrdiff_t top_linesize,
78                   const uint8_t *bottom, ptrdiff_t bottom_linesize,
79                   uint8_t *dst, ptrdiff_t dst_linesize,
80                   ptrdiff_t width, ptrdiff_t height,
81                   struct FilterParams *param, double *values, int starty);
82 } FilterParams;
83 
84 void ff_blend_init_x86(FilterParams *param, int depth);
85 
86 #endif /* AVFILTER_BLEND_H */
87