| 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 |