mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
125 lines
4.1 KiB
C
125 lines
4.1 KiB
C
/*
|
|
* rectangle filling function
|
|
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; 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 <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, 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;
|
|
assert(size==1 || size==2 || size==4);
|
|
assert(w<=4);
|
|
|
|
w *= size;
|
|
stride *= size;
|
|
|
|
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 : 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
|
|
assert(0);
|
|
assert(h==4);
|
|
}
|
|
|
|
#endif /* AVCODEC_RECTANGLE_H */
|