FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/rectangle.h
Date: 2026-01-23 19:11:46
Exec Total Coverage
Lines: 39 39 100.0%
Functions: 1 1 100.0%
Branches: 27 30 90.0%
Line Branch Exec Source
1 /*
2 * rectangle filling function
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * useful rectangle filling function
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28 #ifndef AVCODEC_RECTANGLE_H
29 #define AVCODEC_RECTANGLE_H
30
31 #include "config.h"
32 #include "libavutil/common.h"
33 #include "libavutil/avassert.h"
34
35 /**
36 * fill a rectangle.
37 * @param h height of the rectangle, should be a constant
38 * @param w width of the rectangle, should be a constant
39 * @param size the size of val (1, 2 or 4), should be a constant
40 */
41 88123599 static av_always_inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){
42 88123599 uint8_t *p= (uint8_t*)vp;
43 av_assert2(size==1 || size==2 || size==4);
44 av_assert2(w<=4);
45
46 88123599 w *= size;
47 88123599 stride *= size;
48
49 av_assert2((((uintptr_t)vp)&(FFMIN(w, 8<<(HAVE_NEON|ARCH_PPC|HAVE_MMX))-1)) == 0);
50 av_assert2((stride&(w-1))==0);
51
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 88123599 if(w==2){
52
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 24758556 const uint16_t v= size==4 ? val : val*0x0101;
53 24758556 *(uint16_t*)(p + 0*stride)= v;
54
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 24758556 if(h==1) return;
55 24758556 *(uint16_t*)(p + 1*stride)= v;
56
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 24758556 if(h==2) return;
57 1711682 *(uint16_t*)(p + 2*stride)= v;
58 1711682 *(uint16_t*)(p + 3*stride)= v;
59
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 63365043 }else if(w==4){
60
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 38090816 const uint32_t v= size==4 ? val : size==2 ? val*0x00010001 : val*0x01010101;
61 38090816 *(uint32_t*)(p + 0*stride)= v;
62
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 38090816 if(h==1) return;
63 38090768 *(uint32_t*)(p + 1*stride)= v;
64
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 38090768 if(h==2) return;
65 34477766 *(uint32_t*)(p + 2*stride)= v;
66 34477766 *(uint32_t*)(p + 3*stride)= v;
67
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 25274227 }else if(w==8){
68 // gcc cannot optimize 64-bit math on x86_32
69 #if HAVE_FAST_64BIT
70
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 10093980 const uint64_t v= size==2 ? val*0x0001000100010001ULL : val*0x0100000001ULL;
71 10093980 *(uint64_t*)(p + 0*stride)= v;
72
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 10093980 if(h==1) return;
73 10093916 *(uint64_t*)(p + 1*stride)= v;
74
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 10093916 if(h==2) return;
75 5416027 *(uint64_t*)(p + 2*stride)= v;
76 5416027 *(uint64_t*)(p + 3*stride)= v;
77
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 15180247 }else if(w==16){
78 15180247 const uint64_t v= val*0x0100000001ULL;
79 15180247 *(uint64_t*)(p + 0+0*stride)= v;
80 15180247 *(uint64_t*)(p + 8+0*stride)= v;
81 15180247 *(uint64_t*)(p + 0+1*stride)= v;
82 15180247 *(uint64_t*)(p + 8+1*stride)= v;
83
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 15180247 if(h==2) return;
84 13242315 *(uint64_t*)(p + 0+2*stride)= v;
85 13242315 *(uint64_t*)(p + 8+2*stride)= v;
86 13242315 *(uint64_t*)(p + 0+3*stride)= v;
87 13242315 *(uint64_t*)(p + 8+3*stride)= v;
88 #else
89 const uint32_t v= size==2 ? val*0x00010001 : val;
90 *(uint32_t*)(p + 0+0*stride)= v;
91 *(uint32_t*)(p + 4+0*stride)= v;
92 if(h==1) return;
93 *(uint32_t*)(p + 0+1*stride)= v;
94 *(uint32_t*)(p + 4+1*stride)= v;
95 if(h==2) return;
96 *(uint32_t*)(p + 0+2*stride)= v;
97 *(uint32_t*)(p + 4+2*stride)= v;
98 *(uint32_t*)(p + 0+3*stride)= v;
99 *(uint32_t*)(p + 4+3*stride)= v;
100 }else if(w==16){
101 *(uint32_t*)(p + 0+0*stride)= val;
102 *(uint32_t*)(p + 4+0*stride)= val;
103 *(uint32_t*)(p + 8+0*stride)= val;
104 *(uint32_t*)(p +12+0*stride)= val;
105 *(uint32_t*)(p + 0+1*stride)= val;
106 *(uint32_t*)(p + 4+1*stride)= val;
107 *(uint32_t*)(p + 8+1*stride)= val;
108 *(uint32_t*)(p +12+1*stride)= val;
109 if(h==2) return;
110 *(uint32_t*)(p + 0+2*stride)= val;
111 *(uint32_t*)(p + 4+2*stride)= val;
112 *(uint32_t*)(p + 8+2*stride)= val;
113 *(uint32_t*)(p +12+2*stride)= val;
114 *(uint32_t*)(p + 0+3*stride)= val;
115 *(uint32_t*)(p + 4+3*stride)= val;
116 *(uint32_t*)(p + 8+3*stride)= val;
117 *(uint32_t*)(p +12+3*stride)= val;
118 #endif
119 }else
120 av_assert2(0);
121 av_assert2(h==4);
122 }
123
124 #endif /* AVCODEC_RECTANGLE_H */
125