2 * This file is part of MPlayer.
4 * MPlayer is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * MPlayer is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with MPlayer; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #ifndef MPLAYER_FASTMEMCPY_H
20 #define MPLAYER_FASTMEMCPY_H
26 void * fast_memcpy(void * to, const void * from, size_t len);
27 void * mem2agpcpy(void * to, const void * from, size_t len);
29 #if ! defined(CONFIG_FASTMEMCPY) || ! (HAVE_MMX || HAVE_MMX2 || HAVE_AMD3DNOW /* || HAVE_SSE || HAVE_SSE2 */)
30 #define mem2agpcpy(a,b,c) memcpy(a,b,c)
31 #define fast_memcpy(a,b,c) memcpy(a,b,c)
34 static inline void * mem2agpcpy_pic(void * dst, const void * src, int bytesPerLine, int height, int dstStride, int srcStride)
39 if(dstStride == srcStride)
42 src = (const uint8_t*)src + (height-1)*srcStride;
43 dst = (uint8_t*)dst + (height-1)*dstStride;
44 srcStride = -srcStride;
47 mem2agpcpy(dst, src, srcStride*height);
51 for(i=0; i<height; i++)
53 mem2agpcpy(dst, src, bytesPerLine);
54 src = (const uint8_t*)src + srcStride;
55 dst = (uint8_t*)dst + dstStride;
62 #define memcpy_pic(d, s, b, h, ds, ss) memcpy_pic2(d, s, b, h, ds, ss, 0)
63 #define my_memcpy_pic(d, s, b, h, ds, ss) memcpy_pic2(d, s, b, h, ds, ss, 1)
66 * \param limit2width always skip data between end of line and start of next
67 * instead of copying the full block when strides are the same
69 static inline void * memcpy_pic2(void * dst, const void * src,
70 int bytesPerLine, int height,
71 int dstStride, int srcStride, int limit2width)
76 if(!limit2width && dstStride == srcStride)
79 src = (const uint8_t*)src + (height-1)*srcStride;
80 dst = (uint8_t*)dst + (height-1)*dstStride;
81 srcStride = -srcStride;
84 fast_memcpy(dst, src, srcStride*height);
88 for(i=0; i<height; i++)
90 fast_memcpy(dst, src, bytesPerLine);
91 src = (const uint8_t*)src + srcStride;
92 dst = (uint8_t*)dst + dstStride;
99 #endif /* MPLAYER_FASTMEMCPY_H */