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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * rectangle filling function |
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| 3 | * Copyright (c) 2003 Michael Niedermayer |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | /** |
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| 23 | * @file |
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| 24 | * useful rectangle filling function |
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| 25 | * @author Michael Niedermayer |
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| 26 | */ |
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| 27 | |||
| 28 | #ifndef AVCODEC_RECTANGLE_H |
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| 29 | #define AVCODEC_RECTANGLE_H |
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| 30 | |||
| 31 | #include "config.h" |
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| 32 | #include "libavutil/common.h" |
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| 33 | #include "libavutil/avassert.h" |
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| 34 | |||
| 35 | /** |
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| 36 | * fill a rectangle. |
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| 37 | * @param h height of the rectangle, should be a constant |
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| 38 | * @param w width of the rectangle, should be a constant |
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| 39 | * @param size the size of val (1, 2 or 4), should be a constant |
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| 40 | */ |
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| 41 | static av_always_inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){ |
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| 42 | uint8_t *p= (uint8_t*)vp; |
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| 43 | av_assert2(size==1 || size==2 || size==4); |
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| 44 | av_assert2(w<=4); |
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| 45 | |||
| 46 | w *= size; |
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| 47 | stride *= size; |
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| 48 | |||
| 49 | av_assert2((((long)vp)&(FFMIN(w, 8<<(HAVE_NEON|ARCH_PPC|HAVE_MMX))-1)) == 0); |
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| 50 | av_assert2((stride&(w-1))==0); |
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| 51 | if(w==2){ |
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| 52 | const uint16_t v= size==4 ? val : val*0x0101; |
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| 53 | *(uint16_t*)(p + 0*stride)= v; |
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| 54 | if(h==1) return; |
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| 55 | *(uint16_t*)(p + 1*stride)= v; |
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| 56 | if(h==2) return; |
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| 57 | *(uint16_t*)(p + 2*stride)= v; |
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| 58 | *(uint16_t*)(p + 3*stride)= v; |
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| 59 | }else if(w==4){ |
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| 60 | const uint32_t v= size==4 ? val : size==2 ? val*0x00010001 : val*0x01010101; |
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| 61 | *(uint32_t*)(p + 0*stride)= v; |
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| 62 | if(h==1) return; |
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| 63 | *(uint32_t*)(p + 1*stride)= v; |
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| 64 | if(h==2) return; |
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| 65 | *(uint32_t*)(p + 2*stride)= v; |
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| 66 | *(uint32_t*)(p + 3*stride)= v; |
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| 67 | }else if(w==8){ |
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| 68 | //gcc can't optimize 64bit math on x86_32 |
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| 69 | #if HAVE_FAST_64BIT |
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| 70 | const uint64_t v= size==2 ? val*0x0001000100010001ULL : val*0x0100000001ULL; |
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| 71 | *(uint64_t*)(p + 0*stride)= v; |
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| 72 | if(h==1) return; |
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| 73 | *(uint64_t*)(p + 1*stride)= v; |
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| 74 | if(h==2) return; |
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| 75 | *(uint64_t*)(p + 2*stride)= v; |
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| 76 | *(uint64_t*)(p + 3*stride)= v; |
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| 77 | }else if(w==16){ |
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| 78 | const uint64_t v= val*0x0100000001ULL; |
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| 79 | *(uint64_t*)(p + 0+0*stride)= v; |
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| 80 | *(uint64_t*)(p + 8+0*stride)= v; |
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| 81 | *(uint64_t*)(p + 0+1*stride)= v; |
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| 82 | *(uint64_t*)(p + 8+1*stride)= v; |
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| 83 | if(h==2) return; |
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| 84 | *(uint64_t*)(p + 0+2*stride)= v; |
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| 85 | *(uint64_t*)(p + 8+2*stride)= v; |
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| 86 | *(uint64_t*)(p + 0+3*stride)= v; |
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| 87 | *(uint64_t*)(p + 8+3*stride)= v; |
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| 88 | #else |
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| 89 | const uint32_t v= size==2 ? val*0x00010001 : val; |
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| 90 | *(uint32_t*)(p + 0+0*stride)= v; |
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| 91 | *(uint32_t*)(p + 4+0*stride)= v; |
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| 92 | if(h==1) return; |
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| 93 | *(uint32_t*)(p + 0+1*stride)= v; |
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| 94 | *(uint32_t*)(p + 4+1*stride)= v; |
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| 95 | if(h==2) return; |
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| 96 | *(uint32_t*)(p + 0+2*stride)= v; |
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| 97 | *(uint32_t*)(p + 4+2*stride)= v; |
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| 98 | *(uint32_t*)(p + 0+3*stride)= v; |
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| 99 | *(uint32_t*)(p + 4+3*stride)= v; |
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| 100 | }else if(w==16){ |
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| 101 | *(uint32_t*)(p + 0+0*stride)= val; |
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| 102 | *(uint32_t*)(p + 4+0*stride)= val; |
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| 103 | *(uint32_t*)(p + 8+0*stride)= val; |
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| 104 | *(uint32_t*)(p +12+0*stride)= val; |
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| 105 | *(uint32_t*)(p + 0+1*stride)= val; |
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| 106 | *(uint32_t*)(p + 4+1*stride)= val; |
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| 107 | *(uint32_t*)(p + 8+1*stride)= val; |
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| 108 | *(uint32_t*)(p +12+1*stride)= val; |
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| 109 | if(h==2) return; |
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| 110 | *(uint32_t*)(p + 0+2*stride)= val; |
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| 111 | *(uint32_t*)(p + 4+2*stride)= val; |
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| 112 | *(uint32_t*)(p + 8+2*stride)= val; |
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| 113 | *(uint32_t*)(p +12+2*stride)= val; |
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| 114 | *(uint32_t*)(p + 0+3*stride)= val; |
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| 115 | *(uint32_t*)(p + 4+3*stride)= val; |
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| 116 | *(uint32_t*)(p + 8+3*stride)= val; |
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| 117 | *(uint32_t*)(p +12+3*stride)= val; |
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| 118 | #endif |
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| 119 | }else |
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| 120 | av_assert2(0); |
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| 121 | av_assert2(h==4); |
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| 122 | } |
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| 123 | |||
| 124 | #endif /* AVCODEC_RECTANGLE_H */ |