mirror of https://github.com/mpv-player/mpv
90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with MPlayer; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef MPLAYER_FASTMEMCPY_H
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#define MPLAYER_FASTMEMCPY_H
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#include "config.h"
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#include <inttypes.h>
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#include <string.h>
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#include <stddef.h>
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#define my_memcpy_pic memcpy_pic
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#define memcpy_pic2(d, s, b, h, ds, ss, unused) memcpy_pic(d, s, b, h, ds, ss)
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static inline void * memcpy_pic(void * dst, const void * src,
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int bytesPerLine, int height,
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int dstStride, int srcStride)
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{
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int i;
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void *retval=dst;
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if(bytesPerLine == dstStride && dstStride == srcStride)
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{
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if (srcStride < 0) {
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src = (uint8_t*)src + (height-1)*srcStride;
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dst = (uint8_t*)dst + (height-1)*dstStride;
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srcStride = -srcStride;
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}
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memcpy(dst, src, srcStride*height);
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}
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else
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{
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for(i=0; i<height; i++)
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{
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memcpy(dst, src, bytesPerLine);
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src = (uint8_t*)src + srcStride;
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dst = (uint8_t*)dst + dstStride;
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}
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}
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return retval;
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}
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static inline void memset_pic(void *dst, int fill, int bytesPerLine, int height,
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int stride)
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{
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if (bytesPerLine == stride) {
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memset(dst, fill, stride * height);
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} else {
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for (int i = 0; i < height; i++) {
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memset(dst, fill, bytesPerLine);
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dst = (uint8_t *)dst + stride;
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}
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}
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}
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static inline void memset16_pic(void *dst, int fill, int unitsPerLine,
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int height, int stride)
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{
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if (fill == 0) {
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memset_pic(dst, 0, unitsPerLine * 2, height, stride);
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} else {
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for (int i = 0; i < height; i++) {
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uint16_t *line = dst;
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uint16_t *end = line + unitsPerLine;
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while (line < end)
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*line++ = fill;
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dst = (uint8_t *)dst + stride;
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}
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}
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}
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#endif /* MPLAYER_FASTMEMCPY_H */
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