notaz.gp2x.de / pcsx_rearmed.git / blame
| Commit | Line | Data |
|---|---|---|
| 3719602c PC |
1 | /* Copyright (C) 2010-2020 The RetroArch team |
| 2 | * | |
| 3 | * --------------------------------------------------------------------------------------- | |
| 4 | * The following license statement only applies to this file (cdfs.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 __RARCH_CDFS_H | |
| 24 | #define __RARCH_CDFS_H | |
| 25 | ||
| 26 | #include <streams/interface_stream.h> | |
| 27 | ||
| 28 | RETRO_BEGIN_DECLS | |
| 29 | ||
| 30 | /* these functions provide an interface for locating and reading files within a data track | |
| 31 | * of a CD (following the ISO-9660 directory structure definition) | |
| 32 | */ | |
| 33 | ||
| 34 | typedef struct cdfs_track_t | |
| 35 | { | |
| 36 | intfstream_t* stream; | |
| 37 | unsigned int stream_sector_size; | |
| 38 | unsigned int stream_sector_header_size; | |
| 39 | unsigned int first_sector_offset; | |
| 40 | unsigned int first_sector_index; | |
| 41 | } cdfs_track_t; | |
| 42 | ||
| 43 | typedef struct cdfs_file_t | |
| 44 | { | |
| 45 | struct cdfs_track_t* track; | |
| 46 | int first_sector; | |
| 47 | int current_sector; | |
| 48 | int sector_buffer_valid; | |
| 49 | unsigned int current_sector_offset; | |
| 50 | unsigned int size; | |
| 51 | unsigned int pos; | |
| 52 | uint8_t sector_buffer[2048]; | |
| 53 | } cdfs_file_t; | |
| 54 | ||
| 55 | /* opens the specified file within the CD or virtual CD. | |
| 56 | * if path is NULL, will open the raw CD (useful for | |
| 57 | * reading CD without having to worry about sector sizes, | |
| 58 | * headers, or checksum data) | |
| 59 | */ | |
| 60 | int cdfs_open_file(cdfs_file_t* file, cdfs_track_t* stream, const char* path); | |
| 61 | ||
| 62 | void cdfs_close_file(cdfs_file_t* file); | |
| 63 | ||
| 64 | int64_t cdfs_read_file(cdfs_file_t* file, void* buffer, uint64_t len); | |
| 65 | ||
| 66 | int64_t cdfs_get_size(cdfs_file_t* file); | |
| 67 | ||
| 68 | int64_t cdfs_tell(cdfs_file_t* file); | |
| 69 | ||
| 70 | int64_t cdfs_seek(cdfs_file_t* file, int64_t offset, int whence); | |
| 71 | ||
| 72 | void cdfs_seek_sector(cdfs_file_t* file, unsigned int sector); | |
| 73 | ||
| 74 | uint32_t cdfs_get_num_sectors(cdfs_file_t* file); | |
| 75 | ||
| 76 | uint32_t cdfs_get_first_sector(cdfs_file_t* file); | |
| 77 | ||
| 78 | /* opens the specified track in a CD or virtual CD file - the resulting stream should be passed to | |
| 79 | * cdfs_open_file to get access to a file within the CD. | |
| 80 | * | |
| 81 | * supported files: | |
| 82 | * real CD - path will be in the form "cdrom://drive1.cue" or "cdrom://d:/drive.cue" | |
| 83 | * bin/cue - path will point to the cue file | |
| 84 | * chd - path will point to the chd file | |
| 85 | * | |
| 86 | * for bin/cue files, the following storage modes are supported: | |
| 87 | * MODE2/2352 | |
| 88 | * MODE1/2352 | |
| 89 | * MODE1/2048 - untested | |
| 90 | * MODE2/2336 - untested | |
| 91 | */ | |
| 92 | cdfs_track_t* cdfs_open_track(const char* path, unsigned int track_index); | |
| 93 | ||
| 94 | /* opens the first data track in a CD or virtual CD file. see cdfs_open_track for supported file formats | |
| 95 | */ | |
| 96 | cdfs_track_t* cdfs_open_data_track(const char* path); | |
| 97 | ||
| 98 | /* opens a raw track file for a CD or virtual CD. | |
| 99 | * | |
| 100 | * supported files: | |
| 101 | * real CD - path will be in the form "cdrom://drive1-track01.bin" or "cdrom://d:/drive-track01.bin" | |
| 102 | * NOTE: cue file for CD must be opened first to populate vfs_cdrom_toc. | |
| 103 | * bin - path will point to the bin file | |
| 104 | * iso - path will point to the iso file | |
| 105 | */ | |
| 106 | cdfs_track_t* cdfs_open_raw_track(const char* path); | |
| 107 | ||
| 108 | /* closes the CD or virtual CD track and frees the associated memory */ | |
| 109 | void cdfs_close_track(cdfs_track_t* track); | |
| 110 | ||
| 111 | RETRO_END_DECLS | |
| 112 | ||
| 113 | #endif /* __RARCH_CDFS_H */ |