repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
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 | static av_always_inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){ | |
| 42 | uint8_t *p= (uint8_t*)vp; | |
| 43 | av_assert2(size==1 || size==2 || size==4); | |
| 44 | av_assert2(w<=4); | |
| 45 | ||
| 46 | w *= size; | |
| 47 | stride *= size; | |
| 48 | ||
| 49 | av_assert2((((long)vp)&(FFMIN(w, 8<<(HAVE_NEON|ARCH_PPC|HAVE_MMX))-1)) == 0); | |
| 50 | av_assert2((stride&(w-1))==0); | |
| 51 | if(w==2){ | |
| 52 | const uint16_t v= size==4 ? val : val*0x0101; | |
| 53 | *(uint16_t*)(p + 0*stride)= v; | |
| 54 | if(h==1) return; | |
| 55 | *(uint16_t*)(p + 1*stride)= v; | |
| 56 | if(h==2) return; | |
| 57 | *(uint16_t*)(p + 2*stride)= v; | |
| 58 | *(uint16_t*)(p + 3*stride)= v; | |
| 59 | }else if(w==4){ | |
| 60 | const uint32_t v= size==4 ? val : size==2 ? val*0x00010001 : val*0x01010101; | |
| 61 | *(uint32_t*)(p + 0*stride)= v; | |
| 62 | if(h==1) return; | |
| 63 | *(uint32_t*)(p + 1*stride)= v; | |
| 64 | if(h==2) return; | |
| 65 | *(uint32_t*)(p + 2*stride)= v; | |
| 66 | *(uint32_t*)(p + 3*stride)= v; | |
| 67 | }else if(w==8){ | |
| 68 | //gcc can't optimize 64bit math on x86_32 | |
| 69 | #if HAVE_FAST_64BIT | |
| 70 | const uint64_t v= size==2 ? val*0x0001000100010001ULL : val*0x0100000001ULL; | |
| 71 | *(uint64_t*)(p + 0*stride)= v; | |
| 72 | if(h==1) return; | |
| 73 | *(uint64_t*)(p + 1*stride)= v; | |
| 74 | if(h==2) return; | |
| 75 | *(uint64_t*)(p + 2*stride)= v; | |
| 76 | *(uint64_t*)(p + 3*stride)= v; | |
| 77 | }else if(w==16){ | |
| 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; | |
| 83 | if(h==2) return; | |
| 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; | |
| 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 */ |