Libav 0.7.1
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00001 /* 00002 * rectangle filling function 00003 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> 00004 * 00005 * This file is part of Libav. 00006 * 00007 * Libav is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * Libav is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with Libav; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00028 #ifndef AVCODEC_RECTANGLE_H 00029 #define AVCODEC_RECTANGLE_H 00030 00031 #include <assert.h> 00032 #include "config.h" 00033 #include "libavutil/common.h" 00034 #include "dsputil.h" 00035 00042 static av_always_inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){ 00043 uint8_t *p= (uint8_t*)vp; 00044 assert(size==1 || size==2 || size==4); 00045 assert(w<=4); 00046 00047 w *= size; 00048 stride *= size; 00049 00050 assert((((long)vp)&(FFMIN(w, STRIDE_ALIGN)-1)) == 0); 00051 assert((stride&(w-1))==0); 00052 if(w==2){ 00053 const uint16_t v= size==4 ? val : val*0x0101; 00054 *(uint16_t*)(p + 0*stride)= v; 00055 if(h==1) return; 00056 *(uint16_t*)(p + 1*stride)= v; 00057 if(h==2) return; 00058 *(uint16_t*)(p + 2*stride)= v; 00059 *(uint16_t*)(p + 3*stride)= v; 00060 }else if(w==4){ 00061 const uint32_t v= size==4 ? val : size==2 ? val*0x00010001 : val*0x01010101; 00062 *(uint32_t*)(p + 0*stride)= v; 00063 if(h==1) return; 00064 *(uint32_t*)(p + 1*stride)= v; 00065 if(h==2) return; 00066 *(uint32_t*)(p + 2*stride)= v; 00067 *(uint32_t*)(p + 3*stride)= v; 00068 }else if(w==8){ 00069 //gcc can't optimize 64bit math on x86_32 00070 #if HAVE_FAST_64BIT 00071 const uint64_t v= size==2 ? val*0x0001000100010001ULL : val*0x0100000001ULL; 00072 *(uint64_t*)(p + 0*stride)= v; 00073 if(h==1) return; 00074 *(uint64_t*)(p + 1*stride)= v; 00075 if(h==2) return; 00076 *(uint64_t*)(p + 2*stride)= v; 00077 *(uint64_t*)(p + 3*stride)= v; 00078 }else if(w==16){ 00079 const uint64_t v= val*0x0100000001ULL; 00080 *(uint64_t*)(p + 0+0*stride)= v; 00081 *(uint64_t*)(p + 8+0*stride)= v; 00082 *(uint64_t*)(p + 0+1*stride)= v; 00083 *(uint64_t*)(p + 8+1*stride)= v; 00084 if(h==2) return; 00085 *(uint64_t*)(p + 0+2*stride)= v; 00086 *(uint64_t*)(p + 8+2*stride)= v; 00087 *(uint64_t*)(p + 0+3*stride)= v; 00088 *(uint64_t*)(p + 8+3*stride)= v; 00089 #else 00090 const uint32_t v= size==2 ? val*0x00010001 : val; 00091 *(uint32_t*)(p + 0+0*stride)= v; 00092 *(uint32_t*)(p + 4+0*stride)= v; 00093 if(h==1) return; 00094 *(uint32_t*)(p + 0+1*stride)= v; 00095 *(uint32_t*)(p + 4+1*stride)= v; 00096 if(h==2) return; 00097 *(uint32_t*)(p + 0+2*stride)= v; 00098 *(uint32_t*)(p + 4+2*stride)= v; 00099 *(uint32_t*)(p + 0+3*stride)= v; 00100 *(uint32_t*)(p + 4+3*stride)= v; 00101 }else if(w==16){ 00102 *(uint32_t*)(p + 0+0*stride)= val; 00103 *(uint32_t*)(p + 4+0*stride)= val; 00104 *(uint32_t*)(p + 8+0*stride)= val; 00105 *(uint32_t*)(p +12+0*stride)= val; 00106 *(uint32_t*)(p + 0+1*stride)= val; 00107 *(uint32_t*)(p + 4+1*stride)= val; 00108 *(uint32_t*)(p + 8+1*stride)= val; 00109 *(uint32_t*)(p +12+1*stride)= val; 00110 if(h==2) return; 00111 *(uint32_t*)(p + 0+2*stride)= val; 00112 *(uint32_t*)(p + 4+2*stride)= val; 00113 *(uint32_t*)(p + 8+2*stride)= val; 00114 *(uint32_t*)(p +12+2*stride)= val; 00115 *(uint32_t*)(p + 0+3*stride)= val; 00116 *(uint32_t*)(p + 4+3*stride)= val; 00117 *(uint32_t*)(p + 8+3*stride)= val; 00118 *(uint32_t*)(p +12+3*stride)= val; 00119 #endif 00120 }else 00121 assert(0); 00122 assert(h==4); 00123 } 00124 00125 #endif /* AVCODEC_RECTANGLE_H */