1 /* Copyright  (C) 2010-2018 The RetroArch team
2  *
3  * ---------------------------------------------------------------------------------------
4  * The following license statement only applies to this file (chd_stream.h).
5  * ---------------------------------------------------------------------------------------
6  *
7  * Permission is hereby granted, free of charge,
8  * to any person obtaining a copy of this software and associated documentation files (the "Software"),
9  * to deal in the Software without restriction, including without limitation the rights to
10  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
11  * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
16  * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
19  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21  */
22 
23 #ifndef _LIBRETRO_SDK_FILE_CHD_STREAM_H
24 #define _LIBRETRO_SDK_FILE_CHD_STREAM_H
25 
26 #include <stdint.h>
27 #include <stddef.h>
28 
29 #include <retro_common_api.h>
30 
31 RETRO_BEGIN_DECLS
32 
33 typedef struct chdstream chdstream_t;
34 
35 /* First data track */
36 #define CHDSTREAM_TRACK_FIRST_DATA (-1)
37 /* Last track */
38 #define CHDSTREAM_TRACK_LAST (-2)
39 /* Primary (largest) data track, used for CRC identification purposes */
40 #define CHDSTREAM_TRACK_PRIMARY (-3)
41 
42 chdstream_t *chdstream_open(const char *path, int32_t track);
43 
44 void chdstream_close(chdstream_t *stream);
45 
46 ssize_t chdstream_read(chdstream_t *stream, void *data, size_t bytes);
47 
48 int chdstream_getc(chdstream_t *stream);
49 
50 char *chdstream_gets(chdstream_t *stream, char *buffer, size_t len);
51 
52 uint64_t chdstream_tell(chdstream_t *stream);
53 
54 void chdstream_rewind(chdstream_t *stream);
55 
56 int64_t chdstream_seek(chdstream_t *stream, int64_t offset, int whence);
57 
58 ssize_t chdstream_get_size(chdstream_t *stream);
59 
60 RETRO_END_DECLS
61 
62 #endif
63