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ffmpeg.wasm-core
Commit 626464fb authored by Kostya Shishkov's avatar Kostya Shishkov
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Make fill_rectangle() available for other decoders 

Originally committed as revision 11219 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 9a1feb86
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Showing with 122 additions and 88 deletions
libavcodec/h264.c
View file @ 626464fb
......@@ -32,6 +32,7 @@
#include "h264data.h"
#include "h264_parser.h"
#include "golomb.h"
#include "rectangle.h"
#include "cabac.h"
......@@ -75,94 +76,6 @@ const uint8_t ff_div6[52]={
};
/**
* 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);
}
static void fill_caches(H264Context *h, int mb_type, int for_deblock){
MpegEncContext * const s = &h->s;
const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
......
libavcodec/rectangle.h 0 → 100644
View file @ 626464fb
/*
* 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 rectangle.h
* useful rectangle filling function
* @author Michael Niedermayer <michaelni@gmx.at>
*/
#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 */
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