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2ba45a60 DM |
1 | /* |
2 | * This file is part of MPlayer. | |
3 | * | |
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. | |
8 | * | |
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. | |
13 | * | |
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 | |
17 | */ | |
18 | ||
19 | #ifndef MPLAYER_FASTMEMCPY_H | |
20 | #define MPLAYER_FASTMEMCPY_H | |
21 | ||
22 | #include <inttypes.h> | |
23 | #include <string.h> | |
24 | #include <stddef.h> | |
25 | ||
26 | void * fast_memcpy(void * to, const void * from, size_t len); | |
27 | void * mem2agpcpy(void * to, const void * from, size_t len); | |
28 | ||
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) | |
32 | #endif | |
33 | ||
34 | static inline void * mem2agpcpy_pic(void * dst, const void * src, int bytesPerLine, int height, int dstStride, int srcStride) | |
35 | { | |
36 | int i; | |
37 | void *retval=dst; | |
38 | ||
39 | if(dstStride == srcStride) | |
40 | { | |
41 | if (srcStride < 0) { | |
42 | src = (const uint8_t*)src + (height-1)*srcStride; | |
43 | dst = (uint8_t*)dst + (height-1)*dstStride; | |
44 | srcStride = -srcStride; | |
45 | } | |
46 | ||
47 | mem2agpcpy(dst, src, srcStride*height); | |
48 | } | |
49 | else | |
50 | { | |
51 | for(i=0; i<height; i++) | |
52 | { | |
53 | mem2agpcpy(dst, src, bytesPerLine); | |
54 | src = (const uint8_t*)src + srcStride; | |
55 | dst = (uint8_t*)dst + dstStride; | |
56 | } | |
57 | } | |
58 | ||
59 | return retval; | |
60 | } | |
61 | ||
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) | |
64 | ||
65 | /** | |
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 | |
68 | */ | |
69 | static inline void * memcpy_pic2(void * dst, const void * src, | |
70 | int bytesPerLine, int height, | |
71 | int dstStride, int srcStride, int limit2width) | |
72 | { | |
73 | int i; | |
74 | void *retval=dst; | |
75 | ||
76 | if(!limit2width && dstStride == srcStride) | |
77 | { | |
78 | if (srcStride < 0) { | |
79 | src = (const uint8_t*)src + (height-1)*srcStride; | |
80 | dst = (uint8_t*)dst + (height-1)*dstStride; | |
81 | srcStride = -srcStride; | |
82 | } | |
83 | ||
84 | fast_memcpy(dst, src, srcStride*height); | |
85 | } | |
86 | else | |
87 | { | |
88 | for(i=0; i<height; i++) | |
89 | { | |
90 | fast_memcpy(dst, src, bytesPerLine); | |
91 | src = (const uint8_t*)src + srcStride; | |
92 | dst = (uint8_t*)dst + dstStride; | |
93 | } | |
94 | } | |
95 | ||
96 | return retval; | |
97 | } | |
98 | ||
99 | #endif /* MPLAYER_FASTMEMCPY_H */ |