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/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef MPLAYER_FASTMEMCPY_H
#define MPLAYER_FASTMEMCPY_H
#include <inttypes.h>
#include <string.h>
#include <stddef.h>
#define my_memcpy_pic memcpy_pic
#define memcpy_pic2(d, s, b, h, ds, ss, unused) memcpy_pic(d, s, b, h, ds, ss)
static inline void memcpy_pic(void *dst, const void *src,
int bytesPerLine, int height,
int dstStride, int srcStride)
{
if (bytesPerLine == dstStride && dstStride == srcStride) {
if (srcStride < 0) {
src = (uint8_t*)src + (height - 1) * srcStride;
dst = (uint8_t*)dst + (height - 1) * dstStride;
srcStride = -srcStride;
}
memcpy(dst, src, srcStride * height);
} else {
for (int i = 0; i < height; i++) {
memcpy(dst, src, bytesPerLine);
src = (uint8_t*)src + srcStride;
dst = (uint8_t*)dst + dstStride;
}
}
}
static inline void memset_pic(void *dst, int fill, int bytesPerLine, int height,
int stride)
{
if (bytesPerLine == stride) {
memset(dst, fill, stride * height);
} else {
for (int i = 0; i < height; i++) {
memset(dst, fill, bytesPerLine);
dst = (uint8_t *)dst + stride;
}
}
}
static inline void memset16_pic(void *dst, int fill, int unitsPerLine,
int height, int stride)
{
if (fill == 0) {
memset_pic(dst, 0, unitsPerLine * 2, height, stride);
} else {
for (int i = 0; i < height; i++) {
uint16_t *line = dst;
uint16_t *end = line + unitsPerLine;
while (line < end)
*line++ = fill;
dst = (uint8_t *)dst + stride;
}
}
}
#endif /* MPLAYER_FASTMEMCPY_H */
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