* rectangle filling function
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file rectangle.h
+ * @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"
/**
* 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
+ * @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==4);
+ assert(size==1 || size==2 || 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 + 2*stride)= v;
*(uint16_t*)(p + 3*stride)= v;
}else if(w==4){
- const uint32_t v= size==4 ? val : val*0x01010101;
+ 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;
*(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
-#ifdef HAVE_FAST_64BIT
- const uint64_t v= val*0x0100000001ULL;
+ // gcc cannot optimize 64-bit 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;
*(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;
+ 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)= val;
- *(uint32_t*)(p + 4+1*stride)= val;
+ *(uint32_t*)(p + 0+1*stride)= v;
+ *(uint32_t*)(p + 4+1*stride)= v;
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;
+ *(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;