From 626464fb53672cd88049f29b7738388360cbd370 Mon Sep 17 00:00:00 2001 From: Kostya Shishkov Date: Sat, 15 Dec 2007 06:06:16 +0000 Subject: Make fill_rectangle() available for other decoders Originally committed as revision 11219 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/rectangle.h | 121 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 121 insertions(+) create mode 100644 libavcodec/rectangle.h (limited to 'libavcodec/rectangle.h') diff --git a/libavcodec/rectangle.h b/libavcodec/rectangle.h new file mode 100644 index 0000000000..4dd9028f18 --- /dev/null +++ b/libavcodec/rectangle.h @@ -0,0 +1,121 @@ +/* + * rectangle filling function + * Copyright (c) 2003 Michael Niedermayer + * + * 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 rectangle.h + * useful rectangle filling function + * @author Michael Niedermayer + */ + +#ifndef FFMPEG_RECTANGLE_H +#define FFMPEG_RECTANGLE_H + +#include "common.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 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; + assert(size==1 || size==4); + assert(w<=4); + + w *= size; + stride *= size; + + assert((((long)vp)&(FFMIN(w, STRIDE_ALIGN)-1)) == 0); + assert((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 : 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 defined(ARCH_X86_64) || (defined(MP_WORDSIZE) && MP_WORDSIZE >= 64) + const uint64_t v= 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 + *(uint32_t*)(p + 0+0*stride)= val; + *(uint32_t*)(p + 4+0*stride)= val; + if(h==1) return; + *(uint32_t*)(p + 0+1*stride)= val; + *(uint32_t*)(p + 4+1*stride)= val; + if(h==2) return; + *(uint32_t*)(p + 0+2*stride)= val; + *(uint32_t*)(p + 4+2*stride)= val; + *(uint32_t*)(p + 0+3*stride)= val; + *(uint32_t*)(p + 4+3*stride)= val; + }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 + assert(0); + assert(h==4); +} + +#endif /* FFMPEG_RECTANGLE_H */ -- cgit v1.2.3