FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/x86/vf_gradfun_init.c
Date: 2022-12-05 20:26:17
Exec Total Coverage
Lines: 6 34 17.6%
Functions: 1 4 25.0%
Branches: 3 12 25.0%

Line Branch Exec Source
1 /*
2 * Copyright (C) 2009 Loren Merritt <lorenm@u.washington.edu>
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 "config.h"
22 #include "libavutil/attributes.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/x86/cpu.h"
25 #include "libavfilter/gradfun.h"
26
27 void ff_gradfun_filter_line_mmxext(intptr_t x, uint8_t *dst, const uint8_t *src,
28 const uint16_t *dc, int thresh,
29 const uint16_t *dithers);
30 void ff_gradfun_filter_line_ssse3(intptr_t x, uint8_t *dst, const uint8_t *src,
31 const uint16_t *dc, int thresh,
32 const uint16_t *dithers);
33
34 void ff_gradfun_blur_line_movdqa_sse2(intptr_t x, uint16_t *buf,
35 const uint16_t *buf1, uint16_t *dc,
36 const uint8_t *src1, const uint8_t *src2);
37 void ff_gradfun_blur_line_movdqu_sse2(intptr_t x, uint16_t *buf,
38 const uint16_t *buf1, uint16_t *dc,
39 const uint8_t *src1, const uint8_t *src2);
40
41 #if HAVE_X86ASM
42 static void gradfun_filter_line_mmxext(uint8_t *dst, const uint8_t *src,
43 const uint16_t *dc,
44 int width, int thresh,
45 const uint16_t *dithers)
46 {
47 intptr_t x;
48 if (width & 3) {
49 x = width & ~3;
50 ff_gradfun_filter_line_c(dst + x, src + x, dc + x / 2,
51 width - x, thresh, dithers);
52 width = x;
53 }
54 x = -width;
55 ff_gradfun_filter_line_mmxext(x, dst + width, src + width, dc + width / 2,
56 thresh, dithers);
57 }
58
59 static void gradfun_filter_line_ssse3(uint8_t *dst, const uint8_t *src, const uint16_t *dc,
60 int width, int thresh,
61 const uint16_t *dithers)
62 {
63 intptr_t x;
64 if (width & 7) {
65 // could be 10% faster if I somehow eliminated this
66 x = width & ~7;
67 ff_gradfun_filter_line_c(dst + x, src + x, dc + x / 2,
68 width - x, thresh, dithers);
69 width = x;
70 }
71 x = -width;
72 ff_gradfun_filter_line_ssse3(x, dst + width, src + width, dc + width / 2,
73 thresh, dithers);
74 }
75
76 static void gradfun_blur_line_sse2(uint16_t *dc, uint16_t *buf, const uint16_t *buf1,
77 const uint8_t *src, int src_linesize, int width)
78 {
79 intptr_t x = -2 * width;
80 if (((intptr_t) src | src_linesize) & 15)
81 ff_gradfun_blur_line_movdqu_sse2(x, buf + width, buf1 + width,
82 dc + width, src + width * 2,
83 src + width * 2 + src_linesize);
84 else
85 ff_gradfun_blur_line_movdqa_sse2(x, buf + width, buf1 + width,
86 dc + width, src + width * 2,
87 src + width * 2 + src_linesize);
88 }
89 #endif /* HAVE_X86ASM */
90
91 2 av_cold void ff_gradfun_init_x86(GradFunContext *gf)
92 {
93 #if HAVE_X86ASM
94 2 int cpu_flags = av_get_cpu_flags();
95
96
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2 if (EXTERNAL_MMXEXT(cpu_flags))
97 gf->filter_line = gradfun_filter_line_mmxext;
98
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2 if (EXTERNAL_SSSE3(cpu_flags))
99 gf->filter_line = gradfun_filter_line_ssse3;
100
101
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2 if (EXTERNAL_SSE2(cpu_flags))
102 gf->blur_line = gradfun_blur_line_sse2;
103 #endif /* HAVE_X86ASM */
104 2 }
105