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3719602c PC |
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 | #if !(defined(__WINRT__) && defined(__cplusplus_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 |