mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
124 lines
4.1 KiB
124 lines
4.1 KiB
/* |
|
* 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 libavcodec/rectangle.h |
|
* useful rectangle filling function |
|
* @author Michael Niedermayer <michaelni@gmx.at> |
|
*/ |
|
|
|
#ifndef AVCODEC_RECTANGLE_H |
|
#define AVCODEC_RECTANGLE_H |
|
|
|
#include <assert.h> |
|
#include "config.h" |
|
#include "libavutil/common.h" |
|
#include "dsputil.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 HAVE_FAST_64BIT |
|
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 /* AVCODEC_RECTANGLE_H */
|
|
|