1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg 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  * FFmpeg 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 FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVCODEC_COPY_BLOCK_H
20 #define AVCODEC_COPY_BLOCK_H
21 
22 #include <stddef.h>
23 #include <stdint.h>
24 
25 #include "libavutil/intreadwrite.h"
26 
copy_block2(uint8_t * dst,const uint8_t * src,ptrdiff_t dstStride,ptrdiff_t srcStride,int h)27 static inline void copy_block2(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)
28 {
29     int i;
30     for (i = 0; i < h; i++) {
31         AV_COPY16U(dst, src);
32         dst += dstStride;
33         src += srcStride;
34     }
35 }
36 
copy_block4(uint8_t * dst,const uint8_t * src,ptrdiff_t dstStride,ptrdiff_t srcStride,int h)37 static inline void copy_block4(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)
38 {
39     int i;
40     for (i = 0; i < h; i++) {
41         AV_COPY32U(dst, src);
42         dst += dstStride;
43         src += srcStride;
44     }
45 }
46 
copy_block8(uint8_t * dst,const uint8_t * src,ptrdiff_t dstStride,ptrdiff_t srcStride,int h)47 static inline void copy_block8(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)
48 {
49     int i;
50     for (i = 0; i < h; i++) {
51         AV_COPY64U(dst, src);
52         dst += dstStride;
53         src += srcStride;
54     }
55 }
56 
copy_block9(uint8_t * dst,const uint8_t * src,ptrdiff_t dstStride,ptrdiff_t srcStride,int h)57 static inline void copy_block9(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)
58 {
59     int i;
60     for (i = 0; i < h; i++) {
61         AV_COPY64U(dst, src);
62         dst[8] = src[8];
63         dst   += dstStride;
64         src   += srcStride;
65     }
66 }
67 
copy_block16(uint8_t * dst,const uint8_t * src,ptrdiff_t dstStride,ptrdiff_t srcStride,int h)68 static inline void copy_block16(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)
69 {
70     int i;
71     for (i = 0; i < h; i++) {
72         AV_COPY128U(dst, src);
73         dst += dstStride;
74         src += srcStride;
75     }
76 }
77 
copy_block17(uint8_t * dst,const uint8_t * src,ptrdiff_t dstStride,ptrdiff_t srcStride,int h)78 static inline void copy_block17(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)
79 {
80     int i;
81     for (i = 0; i < h; i++) {
82         AV_COPY128U(dst, src);
83         dst[16] = src[16];
84         dst    += dstStride;
85         src    += srcStride;
86     }
87 }
88 
89 #endif /* AVCODEC_COPY_BLOCK_H */
90