226a5691 |
1 | /* Copyright (C) 2010-2020 The RetroArch team |
2 | * |
3 | * --------------------------------------------------------------------------------------- |
4 | * The following license statement only applies to this file (vfs_implementation.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_VFS_H |
24 | #define __LIBRETRO_SDK_VFS_H |
25 | |
26 | #include <retro_common_api.h> |
27 | #include <boolean.h> |
28 | |
29 | #ifdef RARCH_INTERNAL |
30 | #ifndef VFS_FRONTEND |
31 | #define VFS_FRONTEND |
32 | #endif |
33 | #endif |
34 | |
35 | RETRO_BEGIN_DECLS |
36 | |
37 | #ifdef _WIN32 |
38 | typedef void* HANDLE; |
39 | #endif |
40 | |
41 | #ifdef HAVE_CDROM |
42 | typedef struct |
43 | { |
44 | int64_t byte_pos; |
45 | char *cue_buf; |
46 | size_t cue_len; |
47 | unsigned cur_lba; |
48 | unsigned last_frame_lba; |
49 | unsigned char cur_min; |
50 | unsigned char cur_sec; |
51 | unsigned char cur_frame; |
52 | unsigned char cur_track; |
53 | unsigned char last_frame[2352]; |
54 | char drive; |
55 | bool last_frame_valid; |
56 | } vfs_cdrom_t; |
57 | #endif |
58 | |
59 | enum vfs_scheme |
60 | { |
61 | VFS_SCHEME_NONE = 0, |
62 | VFS_SCHEME_CDROM |
63 | }; |
64 | |
65 | #ifndef __WINRT__ |
66 | #ifdef VFS_FRONTEND |
67 | struct retro_vfs_file_handle |
68 | #else |
69 | struct libretro_vfs_implementation_file |
70 | #endif |
71 | { |
72 | #ifdef HAVE_CDROM |
73 | vfs_cdrom_t cdrom; /* int64_t alignment */ |
74 | #endif |
75 | int64_t size; |
76 | uint64_t mappos; |
77 | uint64_t mapsize; |
78 | FILE *fp; |
79 | #ifdef _WIN32 |
80 | HANDLE fh; |
81 | #endif |
82 | char *buf; |
83 | char* orig_path; |
84 | uint8_t *mapped; |
85 | int fd; |
86 | unsigned hints; |
87 | enum vfs_scheme scheme; |
88 | }; |
89 | #endif |
90 | |
91 | /* Replace the following symbol with something appropriate |
92 | * to signify the file is being compiled for a front end instead of a core. |
93 | * This allows the same code to act as reference implementation |
94 | * for VFS and as fallbacks for when the front end does not provide VFS functionality. |
95 | */ |
96 | |
97 | #ifdef VFS_FRONTEND |
98 | typedef struct retro_vfs_file_handle libretro_vfs_implementation_file; |
99 | #else |
100 | typedef struct libretro_vfs_implementation_file libretro_vfs_implementation_file; |
101 | #endif |
102 | |
103 | #ifdef VFS_FRONTEND |
104 | typedef struct retro_vfs_dir_handle libretro_vfs_implementation_dir; |
105 | #else |
106 | typedef struct libretro_vfs_implementation_dir libretro_vfs_implementation_dir; |
107 | #endif |
108 | |
109 | RETRO_END_DECLS |
110 | |
111 | #endif |