FFmpeg
vf_blend_init.h
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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_INIT_H
22 #define AVFILTER_BLEND_INIT_H
23 
24 #include "config.h"
25 #include "libavutil/attributes.h"
26 #include "libavutil/imgutils.h"
27 #include "blend.h"
28 
29 #define DEPTH 8
30 #include "blend_modes.c"
31 
32 #undef DEPTH
33 #define DEPTH 9
34 #include "blend_modes.c"
35 
36 #undef DEPTH
37 #define DEPTH 10
38 #include "blend_modes.c"
39 
40 #undef DEPTH
41 #define DEPTH 12
42 #include "blend_modes.c"
43 
44 #undef DEPTH
45 #define DEPTH 14
46 #include "blend_modes.c"
47 
48 #undef DEPTH
49 #define DEPTH 16
50 #include "blend_modes.c"
51 
52 #undef DEPTH
53 #define DEPTH 32
54 #include "blend_modes.c"
55 
56 #define COPY(src, depth) \
57 static void blend_copy ## src##_##depth(const uint8_t *top, ptrdiff_t top_linesize, \
58  const uint8_t *bottom, ptrdiff_t bottom_linesize,\
59  uint8_t *dst, ptrdiff_t dst_linesize, \
60  ptrdiff_t width, ptrdiff_t height, \
61  FilterParams *param, SliceParams *sliceparam) \
62 { \
63  av_image_copy_plane(dst, dst_linesize, src, src ## _linesize, \
64  width * depth / 8, height); \
65 }
66 
67 COPY(top, 8)
68 COPY(bottom, 8)
69 
70 COPY(top, 16)
71 COPY(bottom, 16)
72 
73 COPY(top, 32)
74 COPY(bottom, 32)
75 
76 #undef COPY
77 
78 #define BLEND_NORMAL(name, type) \
79 static void blend_normal_##name(const uint8_t *_top, ptrdiff_t top_linesize, \
80  const uint8_t *_bottom, ptrdiff_t bottom_linesize,\
81  uint8_t *_dst, ptrdiff_t dst_linesize, \
82  ptrdiff_t width, ptrdiff_t height, \
83  FilterParams *param, SliceParams *sliceparam) \
84 { \
85  const float opacity = param->opacity; \
86  \
87  for (int i = 0; i < height; i++) { \
88  const type *top = (const type*)_top; \
89  const type *bottom = (const type*)_bottom; \
90  type *dst = (type*)_dst; \
91  for (int j = 0; j < width; j++) { \
92  dst[j] = top[j] * opacity + bottom[j] * (1.f - opacity); \
93  } \
94  _dst += dst_linesize; \
95  _top += top_linesize; \
96  _bottom += bottom_linesize; \
97  } \
98 }
99 
100 BLEND_NORMAL(8bit, uint8_t)
101 BLEND_NORMAL(16bit, uint16_t)
102 BLEND_NORMAL(32bit, float)
103 
104 #define DEFINE_INIT_BLEND_FUNC(depth, nbits) \
105 static av_cold void init_blend_func_##depth##_##nbits##bit(FilterParams *param) \
106 { \
107  switch (param->mode) { \
108  case BLEND_ADDITION: param->blend = blend_addition_##depth##bit; break; \
109  case BLEND_GRAINMERGE: param->blend = blend_grainmerge_##depth##bit; break; \
110  case BLEND_AND: param->blend = blend_and_##nbits##bit; break; \
111  case BLEND_AVERAGE: param->blend = blend_average_##nbits##bit; break; \
112  case BLEND_BURN: param->blend = blend_burn_##depth##bit; break; \
113  case BLEND_DARKEN: param->blend = blend_darken_##nbits##bit; break; \
114  case BLEND_DIFFERENCE: param->blend = blend_difference_##nbits##bit; break; \
115  case BLEND_GRAINEXTRACT: param->blend = blend_grainextract_##depth##bit; break; \
116  case BLEND_DIVIDE: param->blend = blend_divide_##depth##bit; break; \
117  case BLEND_DODGE: param->blend = blend_dodge_##depth##bit; break; \
118  case BLEND_EXCLUSION: param->blend = blend_exclusion_##depth##bit; break; \
119  case BLEND_EXTREMITY: param->blend = blend_extremity_##depth##bit; break; \
120  case BLEND_FREEZE: param->blend = blend_freeze_##depth##bit; break; \
121  case BLEND_GLOW: param->blend = blend_glow_##depth##bit; break; \
122  case BLEND_HARDLIGHT: param->blend = blend_hardlight_##depth##bit; break; \
123  case BLEND_HARDMIX: param->blend = blend_hardmix_##depth##bit; break; \
124  case BLEND_HEAT: param->blend = blend_heat_##depth##bit; break; \
125  case BLEND_LIGHTEN: param->blend = blend_lighten_##nbits##bit; break; \
126  case BLEND_LINEARLIGHT: param->blend = blend_linearlight_##depth##bit; break; \
127  case BLEND_MULTIPLY: param->blend = blend_multiply_##depth##bit; break; \
128  case BLEND_MULTIPLY128: param->blend = blend_multiply128_##depth##bit; break; \
129  case BLEND_NEGATION: param->blend = blend_negation_##depth##bit; break; \
130  case BLEND_NORMAL: param->blend = blend_normal_##nbits##bit; break; \
131  case BLEND_OR: param->blend = blend_or_##nbits##bit; break; \
132  case BLEND_OVERLAY: param->blend = blend_overlay_##depth##bit; break; \
133  case BLEND_PHOENIX: param->blend = blend_phoenix_##depth##bit; break; \
134  case BLEND_PINLIGHT: param->blend = blend_pinlight_##depth##bit; break; \
135  case BLEND_REFLECT: param->blend = blend_reflect_##depth##bit; break; \
136  case BLEND_SCREEN: param->blend = blend_screen_##depth##bit; break; \
137  case BLEND_SOFTLIGHT: param->blend = blend_softlight_##depth##bit; break; \
138  case BLEND_SUBTRACT: param->blend = blend_subtract_##nbits##bit; break; \
139  case BLEND_VIVIDLIGHT: param->blend = blend_vividlight_##depth##bit; break; \
140  case BLEND_XOR: param->blend = blend_xor_##nbits##bit; break; \
141  case BLEND_SOFTDIFFERENCE:param->blend=blend_softdifference_##depth##bit;break; \
142  case BLEND_GEOMETRIC: param->blend = blend_geometric_##nbits##bit; break; \
143  case BLEND_HARMONIC: param->blend = blend_harmonic_##nbits##bit; break; \
144  case BLEND_BLEACH: param->blend = blend_bleach_##depth##bit; break; \
145  case BLEND_STAIN: param->blend = blend_stain_##depth##bit; break; \
146  case BLEND_INTERPOLATE: param->blend = blend_interpolate_##depth##bit; break; \
147  case BLEND_HARDOVERLAY: param->blend = blend_hardoverlay_##depth##bit; break; \
148  } \
149 }
150 DEFINE_INIT_BLEND_FUNC(8, 8)
151 DEFINE_INIT_BLEND_FUNC(9, 16)
152 DEFINE_INIT_BLEND_FUNC(10, 16)
153 DEFINE_INIT_BLEND_FUNC(12, 16)
154 DEFINE_INIT_BLEND_FUNC(14, 16)
155 DEFINE_INIT_BLEND_FUNC(16, 16)
156 DEFINE_INIT_BLEND_FUNC(32, 32)
157 
158 av_unused static void ff_blend_init(FilterParams *param, int depth)
159 {
160  switch (depth) {
161  case 8:
162  init_blend_func_8_8bit(param);
163  break;
164  case 9:
165  init_blend_func_9_16bit(param);
166  break;
167  case 10:
168  init_blend_func_10_16bit(param);
169  break;
170  case 12:
171  init_blend_func_12_16bit(param);
172  break;
173  case 14:
174  init_blend_func_14_16bit(param);
175  break;
176  case 16:
177  init_blend_func_16_16bit(param);
178  break;
179  case 32:
180  init_blend_func_32_32bit(param);
181  break;
182  }
183 
184  if (param->opacity == 0 && param->mode != BLEND_NORMAL) {
185  param->blend = depth > 8 ? depth > 16 ? blend_copytop_32 : blend_copytop_16 : blend_copytop_8;
186  } else if (param->mode == BLEND_NORMAL) {
187  if (param->opacity == 1)
188  param->blend = depth > 8 ? depth > 16 ? blend_copytop_32 : blend_copytop_16 : blend_copytop_8;
189  else if (param->opacity == 0)
190  param->blend = depth > 8 ? depth > 16 ? blend_copybottom_32 : blend_copybottom_16 : blend_copybottom_8;
191  }
192 
193 #if ARCH_X86
194  ff_blend_init_x86(param, depth);
195 #endif
196 }
197 
198 #endif /* AVFILTER_BLEND_INIT_H */
COPY
#define COPY(src, depth)
Definition: vf_blend_init.h:56
blend_modes.c
av_unused
#define av_unused
Definition: attributes.h:145
bit
#define bit(string, value)
Definition: cbs_mpeg2.c:56
BLEND_NORMAL
#define BLEND_NORMAL(name, type)
Definition: vf_blend_init.h:78
ff_blend_init_x86
void ff_blend_init_x86(FilterParams *param, int depth)
Definition: vf_blend_init.c:103
FilterParams
filter data
Definition: mlp.h:86
attributes.h
ff_blend_init
static av_unused void ff_blend_init(FilterParams *param, int depth)
Definition: vf_blend_init.h:158
blend.h
DEFINE_INIT_BLEND_FUNC
#define DEFINE_INIT_BLEND_FUNC(depth, nbits)
Definition: vf_blend_init.h:104
imgutils.h
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