/* * rectangle filling function * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * useful rectangle filling function * @author Michael Niedermayer <michaelni@gmx.at> */ #ifndef AVCODEC_RECTANGLE_H #define AVCODEC_RECTANGLE_H #include "config.h" #include "libavutil/common.h" #include "libavutil/avassert.h" /** * fill a rectangle. * @param h height of the rectangle, should be a constant * @param w width of the rectangle, should be a constant * @param size the size of val (1, 2 or 4), should be a constant */ static av_always_inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){ uint8_t *p= (uint8_t*)vp; av_assert2(size==1 || size==2 || size==4); av_assert2(w<=4); w *= size; stride *= size; av_assert2((((long)vp)&(FFMIN(w, 8<<(HAVE_NEON|ARCH_PPC|HAVE_MMX))-1)) == 0); av_assert2((stride&(w-1))==0); if(w==2){ const uint16_t v= size==4 ? val : val*0x0101; *(uint16_t*)(p + 0*stride)= v; if(h==1) return; *(uint16_t*)(p + 1*stride)= v; if(h==2) return; *(uint16_t*)(p + 2*stride)= v; *(uint16_t*)(p + 3*stride)= v; }else if(w==4){ const uint32_t v= size==4 ? val : size==2 ? val*0x00010001 : val*0x01010101; *(uint32_t*)(p + 0*stride)= v; if(h==1) return; *(uint32_t*)(p + 1*stride)= v; if(h==2) return; *(uint32_t*)(p + 2*stride)= v; *(uint32_t*)(p + 3*stride)= v; }else if(w==8){ //gcc can't optimize 64bit math on x86_32 #if HAVE_FAST_64BIT const uint64_t v= size==2 ? val*0x0001000100010001ULL : val*0x0100000001ULL; *(uint64_t*)(p + 0*stride)= v; if(h==1) return; *(uint64_t*)(p + 1*stride)= v; if(h==2) return; *(uint64_t*)(p + 2*stride)= v; *(uint64_t*)(p + 3*stride)= v; }else if(w==16){ const uint64_t v= val*0x0100000001ULL; *(uint64_t*)(p + 0+0*stride)= v; *(uint64_t*)(p + 8+0*stride)= v; *(uint64_t*)(p + 0+1*stride)= v; *(uint64_t*)(p + 8+1*stride)= v; if(h==2) return; *(uint64_t*)(p + 0+2*stride)= v; *(uint64_t*)(p + 8+2*stride)= v; *(uint64_t*)(p + 0+3*stride)= v; *(uint64_t*)(p + 8+3*stride)= v; #else const uint32_t v= size==2 ? val*0x00010001 : val; *(uint32_t*)(p + 0+0*stride)= v; *(uint32_t*)(p + 4+0*stride)= v; if(h==1) return; *(uint32_t*)(p + 0+1*stride)= v; *(uint32_t*)(p + 4+1*stride)= v; if(h==2) return; *(uint32_t*)(p + 0+2*stride)= v; *(uint32_t*)(p + 4+2*stride)= v; *(uint32_t*)(p + 0+3*stride)= v; *(uint32_t*)(p + 4+3*stride)= v; }else if(w==16){ *(uint32_t*)(p + 0+0*stride)= val; *(uint32_t*)(p + 4+0*stride)= val; *(uint32_t*)(p + 8+0*stride)= val; *(uint32_t*)(p +12+0*stride)= val; *(uint32_t*)(p + 0+1*stride)= val; *(uint32_t*)(p + 4+1*stride)= val; *(uint32_t*)(p + 8+1*stride)= val; *(uint32_t*)(p +12+1*stride)= val; if(h==2) return; *(uint32_t*)(p + 0+2*stride)= val; *(uint32_t*)(p + 4+2*stride)= val; *(uint32_t*)(p + 8+2*stride)= val; *(uint32_t*)(p +12+2*stride)= val; *(uint32_t*)(p + 0+3*stride)= val; *(uint32_t*)(p + 4+3*stride)= val; *(uint32_t*)(p + 8+3*stride)= val; *(uint32_t*)(p +12+3*stride)= val; #endif }else av_assert2(0); av_assert2(h==4); } #endif /* AVCODEC_RECTANGLE_H */