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 #ifdef CONFIG_FASTMEMCPY
27 #if HAVE_MMX || HAVE_MMX2 || HAVE_3DNOW \
28 /* || HAVE_SSE || HAVE_SSE2 */
31 void * fast_memcpy(void * to
, const void * from
, size_t len
);
32 void * mem2agpcpy(void * to
, const void * from
, size_t len
);
34 #else /* HAVE_MMX/MMX2/3DNOW/SSE/SSE2 */
35 #define mem2agpcpy(a,b,c) memcpy(a,b,c)
36 #define fast_memcpy(a,b,c) memcpy(a,b,c)
39 #else /* CONFIG_FASTMEMCPY */
40 #define mem2agpcpy(a,b,c) memcpy(a,b,c)
41 #define fast_memcpy(a,b,c) memcpy(a,b,c)
44 static inline void * mem2agpcpy_pic(void * dst
, const void * src
, int bytesPerLine
, int height
, int dstStride
, int srcStride
)
49 if(dstStride
== srcStride
)
52 src
= (uint8_t*)src
+ (height
-1)*srcStride
;
53 dst
= (uint8_t*)dst
+ (height
-1)*dstStride
;
54 srcStride
= -srcStride
;
57 mem2agpcpy(dst
, src
, srcStride
*height
);
61 for(i
=0; i
<height
; i
++)
63 mem2agpcpy(dst
, src
, bytesPerLine
);
64 src
= (uint8_t*)src
+ srcStride
;
65 dst
= (uint8_t*)dst
+ dstStride
;
72 #define memcpy_pic(d, s, b, h, ds, ss) memcpy_pic2(d, s, b, h, ds, ss, 0)
73 #define my_memcpy_pic(d, s, b, h, ds, ss) memcpy_pic2(d, s, b, h, ds, ss, 1)
76 * \param limit2width always skip data between end of line and start of next
77 * instead of copying the full block when strides are the same
79 static inline void * memcpy_pic2(void * dst
, const void * src
,
80 int bytesPerLine
, int height
,
81 int dstStride
, int srcStride
, int limit2width
)
86 if(!limit2width
&& dstStride
== srcStride
)
89 src
= (uint8_t*)src
+ (height
-1)*srcStride
;
90 dst
= (uint8_t*)dst
+ (height
-1)*dstStride
;
91 srcStride
= -srcStride
;
94 fast_memcpy(dst
, src
, srcStride
*height
);
98 for(i
=0; i
<height
; i
++)
100 fast_memcpy(dst
, src
, bytesPerLine
);
101 src
= (uint8_t*)src
+ srcStride
;
102 dst
= (uint8_t*)dst
+ dstStride
;
109 #endif /* MPLAYER_FASTMEMCPY_H */