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 112