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"
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 */
42 uint8_t *
p= (uint8_t*)vp;
45
48
49 av_assert2((((
long)vp)&(
FFMIN(
w, 8<<(HAVE_NEON|ARCH_PPC|HAVE_MMX))-1)) == 0);
68 // gcc cannot optimize 64-bit math on x86_32
69 #if HAVE_FAST_64BIT
70 const uint64_t v=
size==2 ?
val*0x0001000100010001ULL :
val*0x0100000001ULL;
78 const uint64_t v=
val*0x0100000001ULL;
79 *(uint64_t*)(
p + 0+0*
stride)= v;
80 *(uint64_t*)(
p + 8+0*
stride)= v;
81 *(uint64_t*)(
p + 0+1*
stride)= v;
82 *(uint64_t*)(
p + 8+1*
stride)= v;
84 *(uint64_t*)(
p + 0+2*
stride)= v;
85 *(uint64_t*)(
p + 8+2*
stride)= v;
86 *(uint64_t*)(
p + 0+3*
stride)= v;
87 *(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;
93 *(uint32_t*)(
p + 0+1*
stride)= v;
94 *(uint32_t*)(
p + 4+1*
stride)= v;
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;
118 #endif
119 }else
122 }
123
124 #endif /* AVCODEC_RECTANGLE_H */