filename | src/drivers/cdrom/cd_nrg.c |
changeset | 1097:d4807997e450 |
prev | src/gdrom/nrg.c@1075:1a21750d300c |
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author | nkeynes |
date | Sun Jan 31 18:35:06 2010 +1000 (14 years ago) |
permissions | -rw-r--r-- |
last change | Refactor CDROM host support - Completely separate GDROM hardware (in gdrom/gdrom.c) from generic CDROM support (now in drivers/cdrom) - Add concept of 'sector sources' that can be mixed and matched to create cdrom discs (makes support of arbitrary disc types much simpler) |
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nkeynes@138 | 1 | /** |
nkeynes@561 | 2 | * $Id$ |
nkeynes@138 | 3 | * |
nkeynes@138 | 4 | * Nero (NRG) CD file format. File information stolen shamelessly from |
nkeynes@138 | 5 | * libcdio. |
nkeynes@138 | 6 | * |
nkeynes@138 | 7 | * Copyright (c) 2005 Nathan Keynes. |
nkeynes@138 | 8 | * |
nkeynes@138 | 9 | * This program is free software; you can redistribute it and/or modify |
nkeynes@138 | 10 | * it under the terms of the GNU General Public License as published by |
nkeynes@138 | 11 | * the Free Software Foundation; either version 2 of the License, or |
nkeynes@138 | 12 | * (at your option) any later version. |
nkeynes@138 | 13 | * |
nkeynes@138 | 14 | * This program is distributed in the hope that it will be useful, |
nkeynes@138 | 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
nkeynes@138 | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
nkeynes@138 | 17 | * GNU General Public License for more details. |
nkeynes@138 | 18 | */ |
nkeynes@138 | 19 | |
nkeynes@138 | 20 | #include <assert.h> |
nkeynes@138 | 21 | #include <stdio.h> |
nkeynes@138 | 22 | #include <errno.h> |
nkeynes@1097 | 23 | #include "drivers/cdrom/cdimpl.h" |
nkeynes@138 | 24 | #include "dream.h" |
nkeynes@138 | 25 | |
nkeynes@168 | 26 | static gboolean nrg_image_is_valid( FILE *f ); |
nkeynes@1097 | 27 | static gboolean nrg_image_read_toc( cdrom_disc_t disc, ERROR *err ); |
nkeynes@168 | 28 | |
nkeynes@1097 | 29 | struct cdrom_disc_factory nrg_disc_factory = { "Nero", "nrg", |
nkeynes@1097 | 30 | nrg_image_is_valid, NULL, nrg_image_read_toc }; |
nkeynes@168 | 31 | |
nkeynes@138 | 32 | #define NERO_V55_ID 0x4e455235 |
nkeynes@138 | 33 | #define NERO_V50_ID 0x4e45524f |
nkeynes@138 | 34 | |
nkeynes@138 | 35 | /* Courtesy of libcdio */ |
nkeynes@138 | 36 | /* 5.0 or earlier */ |
nkeynes@138 | 37 | #define NERO_ID 0x4e45524f /* Nero pre 5.5.x */ |
nkeynes@138 | 38 | #define CUES_ID 0x43554553 /* Nero pre version 5.5.x-6.x */ |
nkeynes@138 | 39 | #define DAOI_ID 0x44414f49 |
nkeynes@138 | 40 | #define ETNF_ID 0x45544e46 |
nkeynes@138 | 41 | #define SINF_ID 0x53494e46 /* Session information */ |
nkeynes@138 | 42 | #define END_ID 0x454e4421 |
nkeynes@138 | 43 | /* 5.5+ only */ |
nkeynes@138 | 44 | #define NER5_ID 0x4e455235 /* Nero version 5.5.x */ |
nkeynes@138 | 45 | #define CDTX_ID 0x43445458 /* CD TEXT */ |
nkeynes@138 | 46 | #define CUEX_ID 0x43554558 /* Nero version 5.5.x-6.x */ |
nkeynes@138 | 47 | #define DAOX_ID 0x44414f58 /* Nero version 5.5.x-6.x */ |
nkeynes@138 | 48 | #define ETN2_ID 0x45544e32 |
nkeynes@138 | 49 | #define MTYP_ID 0x4d545950 /* Disc Media type? */ |
nkeynes@138 | 50 | |
nkeynes@138 | 51 | |
nkeynes@138 | 52 | union nrg_footer { |
nkeynes@138 | 53 | struct nrg_footer_v50 { |
nkeynes@736 | 54 | uint32_t dummy; |
nkeynes@736 | 55 | uint32_t id; |
nkeynes@736 | 56 | uint32_t offset; |
nkeynes@138 | 57 | } v50; |
nkeynes@138 | 58 | struct nrg_footer_v55 { |
nkeynes@736 | 59 | uint32_t id; |
nkeynes@736 | 60 | uint64_t offset; |
nkeynes@138 | 61 | } v55; |
nkeynes@138 | 62 | }; |
nkeynes@138 | 63 | |
nkeynes@138 | 64 | struct nrg_chunk { |
nkeynes@138 | 65 | uint32_t id; |
nkeynes@138 | 66 | uint32_t length; |
nkeynes@138 | 67 | }; |
nkeynes@138 | 68 | |
nkeynes@138 | 69 | struct nrg_etnf { |
nkeynes@138 | 70 | uint32_t offset; |
nkeynes@138 | 71 | uint32_t length; |
nkeynes@138 | 72 | uint32_t mode; |
nkeynes@138 | 73 | uint32_t lba; |
nkeynes@138 | 74 | uint32_t padding; |
nkeynes@138 | 75 | }; |
nkeynes@138 | 76 | |
nkeynes@514 | 77 | struct nrg_etn2 { |
nkeynes@514 | 78 | uint64_t offset; |
nkeynes@514 | 79 | uint64_t length; |
nkeynes@514 | 80 | uint32_t mode; |
nkeynes@514 | 81 | uint32_t lba; |
nkeynes@514 | 82 | uint64_t padding; |
nkeynes@514 | 83 | }; |
nkeynes@514 | 84 | |
nkeynes@138 | 85 | struct nrg_cues { |
nkeynes@138 | 86 | uint8_t type; |
nkeynes@138 | 87 | uint8_t track; |
nkeynes@138 | 88 | uint8_t control; |
nkeynes@138 | 89 | uint8_t pad; |
nkeynes@138 | 90 | uint32_t addr; |
nkeynes@138 | 91 | }; |
nkeynes@138 | 92 | |
nkeynes@138 | 93 | struct nrg_daoi { |
nkeynes@138 | 94 | uint32_t length; |
nkeynes@138 | 95 | char mcn[14]; |
nkeynes@138 | 96 | uint8_t disc_mode; |
nkeynes@138 | 97 | uint8_t unknown[2]; /* always 01 01? */ |
nkeynes@138 | 98 | uint8_t track_count; |
nkeynes@138 | 99 | struct nrg_daoi_track { |
nkeynes@736 | 100 | char unknown[10]; |
nkeynes@736 | 101 | uint32_t sector_size __attribute__((packed)); /* Always 0? */ |
nkeynes@736 | 102 | uint8_t mode; |
nkeynes@736 | 103 | uint8_t unknown2[3]; /* Always 00 00 01? */ |
nkeynes@736 | 104 | uint32_t pregap __attribute__((packed)); |
nkeynes@736 | 105 | uint32_t offset __attribute__((packed)); |
nkeynes@736 | 106 | uint32_t end __attribute__((packed)); |
nkeynes@138 | 107 | } track[0]; |
nkeynes@138 | 108 | } __attribute__((packed)); |
nkeynes@138 | 109 | |
nkeynes@514 | 110 | struct nrg_daox { |
nkeynes@514 | 111 | uint32_t length; |
nkeynes@514 | 112 | char mcn[14]; |
nkeynes@514 | 113 | uint8_t disc_mode; |
nkeynes@514 | 114 | uint8_t unknown[2]; /* always 01 01? */ |
nkeynes@514 | 115 | uint8_t track_count; |
nkeynes@514 | 116 | struct nrg_daox_track { |
nkeynes@736 | 117 | char unknown[10]; |
nkeynes@736 | 118 | uint32_t sector_size __attribute__((packed)); /* Always 0? */ |
nkeynes@736 | 119 | uint8_t mode; |
nkeynes@736 | 120 | uint8_t unknown2[3]; /* Always 00 00 01? */ |
nkeynes@736 | 121 | uint64_t pregap __attribute__((packed)); |
nkeynes@736 | 122 | uint64_t offset __attribute__((packed)); |
nkeynes@736 | 123 | uint64_t end __attribute__((packed)); |
nkeynes@514 | 124 | } track[0]; |
nkeynes@514 | 125 | } __attribute__((packed)); |
nkeynes@514 | 126 | |
nkeynes@138 | 127 | |
nkeynes@1097 | 128 | sector_mode_t static nrg_track_mode( uint8_t mode ) |
nkeynes@138 | 129 | { |
nkeynes@138 | 130 | switch( mode ) { |
nkeynes@1097 | 131 | case 0: return SECTOR_MODE1; |
nkeynes@1097 | 132 | case 2: return SECTOR_MODE2_FORM1; |
nkeynes@1097 | 133 | case 3: return SECTOR_SEMIRAW_MODE2; |
nkeynes@1097 | 134 | case 7: return SECTOR_CDDA; |
nkeynes@1097 | 135 | default: return -1; |
nkeynes@138 | 136 | } |
nkeynes@138 | 137 | } |
nkeynes@138 | 138 | |
nkeynes@168 | 139 | static gboolean nrg_image_is_valid( FILE *f ) |
nkeynes@138 | 140 | { |
nkeynes@168 | 141 | union nrg_footer footer; |
nkeynes@168 | 142 | |
nkeynes@168 | 143 | fseek( f, -12, SEEK_END ); |
nkeynes@168 | 144 | fread( &footer, sizeof(footer), 1, f ); |
nkeynes@514 | 145 | if( GUINT32_FROM_BE(footer.v50.id) == NERO_V50_ID || |
nkeynes@736 | 146 | GUINT32_FROM_BE(footer.v55.id) == NERO_V55_ID ) { |
nkeynes@736 | 147 | return TRUE; |
nkeynes@168 | 148 | } else { |
nkeynes@736 | 149 | return FALSE; |
nkeynes@168 | 150 | } |
nkeynes@168 | 151 | } |
nkeynes@168 | 152 | |
nkeynes@1097 | 153 | #define RETURN_PARSE_ERROR( ... ) do { SET_ERROR(err, EINVAL, __VA_ARGS__); return FALSE; } while(0) |
nkeynes@1097 | 154 | |
nkeynes@1097 | 155 | static gboolean nrg_image_read_toc( cdrom_disc_t disc, ERROR *err ) |
nkeynes@168 | 156 | { |
nkeynes@138 | 157 | union nrg_footer footer; |
nkeynes@138 | 158 | struct nrg_chunk chunk; |
nkeynes@138 | 159 | struct nrg_daoi *dao; |
nkeynes@514 | 160 | struct nrg_daox *daox; |
nkeynes@514 | 161 | struct nrg_etnf *etnf; |
nkeynes@514 | 162 | struct nrg_etn2 *etn2; |
nkeynes@138 | 163 | gboolean end = FALSE; |
nkeynes@514 | 164 | uint32_t chunk_id; |
nkeynes@1097 | 165 | int session_id = 1; |
nkeynes@138 | 166 | int session_track_id = 0; |
nkeynes@138 | 167 | int track_id = 0; |
nkeynes@138 | 168 | int cue_track_id = 0, cue_track_count = 0; |
nkeynes@514 | 169 | int i, count; |
nkeynes@138 | 170 | |
nkeynes@1097 | 171 | FILE *f = cdrom_disc_get_base_file(disc); |
nkeynes@1097 | 172 | |
nkeynes@138 | 173 | fseek( f, -12, SEEK_END ); |
nkeynes@138 | 174 | fread( &footer, sizeof(footer), 1, f ); |
nkeynes@514 | 175 | if( GUINT32_FROM_BE(footer.v50.id) == NERO_V50_ID ) { |
nkeynes@736 | 176 | fseek( f, GUINT32_FROM_BE(footer.v50.offset), SEEK_SET ); |
nkeynes@514 | 177 | } else if( GUINT32_FROM_BE(footer.v55.id) == NERO_V55_ID ) { |
nkeynes@736 | 178 | fseek( f, (uint32_t)GUINT64_FROM_BE(footer.v55.offset), SEEK_SET ); |
nkeynes@138 | 179 | } else { |
nkeynes@1097 | 180 | /* Not a (recognized) Nero image (should never happen) */ |
nkeynes@1097 | 181 | RETURN_PARSE_ERROR("File is not an NRG image" ); |
nkeynes@138 | 182 | } |
nkeynes@138 | 183 | |
nkeynes@138 | 184 | do { |
nkeynes@736 | 185 | fread( &chunk, sizeof(chunk), 1, f ); |
nkeynes@736 | 186 | chunk.length = GUINT32_FROM_BE(chunk.length); |
nkeynes@736 | 187 | char data[chunk.length]; |
nkeynes@736 | 188 | fread( data, chunk.length, 1, f ); |
nkeynes@736 | 189 | chunk_id = GUINT32_FROM_BE(chunk.id); |
nkeynes@736 | 190 | switch( chunk_id ) { |
nkeynes@736 | 191 | case CUES_ID: |
nkeynes@736 | 192 | case CUEX_ID: |
nkeynes@736 | 193 | cue_track_id = track_id; |
nkeynes@736 | 194 | cue_track_count = ((chunk.length / sizeof(struct nrg_cues)) >> 1) - 1; |
nkeynes@736 | 195 | track_id += cue_track_count; |
nkeynes@736 | 196 | for( i=0; i<chunk.length; i+= sizeof(struct nrg_cues) ) { |
nkeynes@736 | 197 | struct nrg_cues *cue = (struct nrg_cues *)(data+i); |
nkeynes@736 | 198 | int track = 0; |
nkeynes@736 | 199 | uint32_t lba; |
nkeynes@736 | 200 | if( chunk_id == CUEX_ID ) { |
nkeynes@1097 | 201 | lba = GUINT32_FROM_BE( cue->addr ); |
nkeynes@736 | 202 | } else { |
nkeynes@1097 | 203 | lba = BCD_MSFTOLBA( cue->addr ); |
nkeynes@736 | 204 | } |
nkeynes@736 | 205 | if( cue->track == 0 ) |
nkeynes@736 | 206 | continue; /* Track 0. Leadin? always 0? */ |
nkeynes@736 | 207 | if( cue->track == 0xAA ) { /* end of disc */ |
nkeynes@1097 | 208 | disc->leadout = lba; |
nkeynes@736 | 209 | } else { |
nkeynes@1097 | 210 | track = BCDTOU8(cue->track) - 1; |
nkeynes@1097 | 211 | if( (cue->control & 0x01) != 0 ) { |
nkeynes@1097 | 212 | /* Track-start address */ |
nkeynes@1023 | 213 | disc->track[track].lba = lba; |
nkeynes@1023 | 214 | disc->track[track].flags = cue->type; |
nkeynes@736 | 215 | } |
nkeynes@736 | 216 | } |
nkeynes@736 | 217 | } |
nkeynes@736 | 218 | break; |
nkeynes@736 | 219 | case DAOI_ID: |
nkeynes@736 | 220 | dao = (struct nrg_daoi *)data; |
nkeynes@1097 | 221 | count = dao->track_count - cue_track_id; |
nkeynes@1023 | 222 | memcpy( disc->mcn, dao->mcn, 13 ); |
nkeynes@1023 | 223 | disc->mcn[13] = '\0'; |
nkeynes@1097 | 224 | if( dao->track_count != track_id || |
nkeynes@1097 | 225 | count * 30 + 22 != chunk.length ) { |
nkeynes@1097 | 226 | RETURN_PARSE_ERROR( "Invalid NRG image file (bad DAOI block)" ); |
nkeynes@1097 | 227 | } |
nkeynes@1097 | 228 | for( i=0; i<count; i++ ) { |
nkeynes@1097 | 229 | uint32_t offset = GUINT32_FROM_BE(dao->track[i].offset); |
nkeynes@1097 | 230 | sector_mode_t mode = nrg_track_mode( dao->track[i].mode ); |
nkeynes@1097 | 231 | if( mode == -1 ) { |
nkeynes@1097 | 232 | RETURN_PARSE_ERROR("Unknown track mode in NRG image file (%d)", dao->track[i].mode); |
nkeynes@1097 | 233 | } |
nkeynes@1097 | 234 | if( CDROM_SECTOR_SIZE(mode) != GUINT32_FROM_BE(dao->track[i].sector_size) ) { |
nkeynes@1097 | 235 | /* Sector size mismatch */ |
nkeynes@1097 | 236 | RETURN_PARSE_ERROR("Invalid NRG image file (Bad sector size in DAOI block)"); |
nkeynes@1097 | 237 | } |
nkeynes@1097 | 238 | cdrom_count_t sector_count = |
nkeynes@736 | 239 | (GUINT32_FROM_BE(dao->track[i].end) - GUINT32_FROM_BE(dao->track[i].offset))/ |
nkeynes@1097 | 240 | CDROM_SECTOR_SIZE(mode); |
nkeynes@1097 | 241 | disc->track[cue_track_id].source = file_sector_source_new_source( disc->base_source, mode, offset, sector_count ); |
nkeynes@736 | 242 | cue_track_id++; |
nkeynes@736 | 243 | } |
nkeynes@736 | 244 | break; |
nkeynes@736 | 245 | case DAOX_ID: |
nkeynes@736 | 246 | daox = (struct nrg_daox *)data; |
nkeynes@1097 | 247 | count = daox->track_count - cue_track_id; |
nkeynes@1023 | 248 | memcpy( disc->mcn, daox->mcn, 13 ); |
nkeynes@1023 | 249 | disc->mcn[13] = '\0'; |
nkeynes@1097 | 250 | if( daox->track_count != track_id || |
nkeynes@1097 | 251 | count * 42 + 22 != chunk.length ) { |
nkeynes@1097 | 252 | RETURN_PARSE_ERROR( "Invalid NRG image file (bad DAOX block)" ); |
nkeynes@1097 | 253 | } |
nkeynes@1097 | 254 | for( i=0; i<count; i++ ) { |
nkeynes@1097 | 255 | uint32_t offset = (uint32_t)GUINT64_FROM_BE(daox->track[i].offset); |
nkeynes@1097 | 256 | sector_mode_t mode = nrg_track_mode( daox->track[i].mode ); |
nkeynes@1097 | 257 | if( mode == -1 ) { |
nkeynes@1097 | 258 | RETURN_PARSE_ERROR("Unknown track mode in NRG image file (%d)", daox->track[i].mode); |
nkeynes@1097 | 259 | } |
nkeynes@1097 | 260 | if( CDROM_SECTOR_SIZE(mode) != GUINT32_FROM_BE(daox->track[i].sector_size) ) { |
nkeynes@1097 | 261 | /* Sector size mismatch */ |
nkeynes@1097 | 262 | RETURN_PARSE_ERROR("Invalid NRG image file (Bad sector size in DAOX block)"); |
nkeynes@1097 | 263 | } |
nkeynes@1097 | 264 | cdrom_count_t sector_count = (cdrom_count_t) |
nkeynes@1097 | 265 | ((GUINT64_FROM_BE(daox->track[i].end) - GUINT64_FROM_BE(daox->track[i].offset))/ |
nkeynes@1097 | 266 | CDROM_SECTOR_SIZE(mode)); |
nkeynes@1097 | 267 | disc->track[cue_track_id].source = file_sector_source_new_source( disc->base_source, mode, offset, sector_count ); |
nkeynes@736 | 268 | cue_track_id++; |
nkeynes@736 | 269 | } |
nkeynes@736 | 270 | break; |
nkeynes@514 | 271 | |
nkeynes@736 | 272 | case SINF_ID: |
nkeynes@736 | 273 | /* Data is a single 32-bit number representing number of tracks in session */ |
nkeynes@736 | 274 | i = GUINT32_FROM_BE( *(uint32_t *)data ); |
nkeynes@736 | 275 | while( i-- > 0 ) |
nkeynes@1097 | 276 | disc->track[session_track_id++].sessionno = session_id; |
nkeynes@736 | 277 | session_id++; |
nkeynes@736 | 278 | break; |
nkeynes@736 | 279 | case ETNF_ID: |
nkeynes@736 | 280 | etnf = (struct nrg_etnf *)data; |
nkeynes@736 | 281 | count = chunk.length / sizeof(struct nrg_etnf); |
nkeynes@736 | 282 | for( i=0; i < count; i++, etnf++ ) { |
nkeynes@1097 | 283 | uint32_t offset = GUINT32_FROM_BE(etnf->offset); |
nkeynes@1097 | 284 | sector_mode_t mode = nrg_track_mode( GUINT32_FROM_BE(etnf->mode) ); |
nkeynes@1097 | 285 | if( mode == -1 ) { |
nkeynes@1097 | 286 | RETURN_PARSE_ERROR("Unknown track mode in NRG image file (%d)", etnf->mode); |
nkeynes@736 | 287 | } |
nkeynes@1097 | 288 | cdrom_count_t sector_count = GUINT32_FROM_BE(etnf->length) / |
nkeynes@1097 | 289 | CDROM_SECTOR_SIZE(mode); |
nkeynes@1097 | 290 | |
nkeynes@1097 | 291 | disc->track[track_id].lba = GUINT32_FROM_BE(etnf->lba) + i*CDROM_PREGAP; |
nkeynes@1097 | 292 | if( mode == SECTOR_CDDA ) |
nkeynes@1023 | 293 | disc->track[track_id].flags = 0x01; |
nkeynes@736 | 294 | else |
nkeynes@1097 | 295 | disc->track[track_id].flags = 0x01 | TRACK_FLAG_DATA; |
nkeynes@1097 | 296 | disc->track[track_id].source = file_sector_source_new_source( disc->base_source, mode, offset, sector_count ); |
nkeynes@736 | 297 | track_id++; |
nkeynes@736 | 298 | } |
nkeynes@736 | 299 | break; |
nkeynes@736 | 300 | case ETN2_ID: |
nkeynes@736 | 301 | etn2 = (struct nrg_etn2 *)data; |
nkeynes@736 | 302 | count = chunk.length / sizeof(struct nrg_etn2); |
nkeynes@736 | 303 | for( i=0; i < count; i++, etn2++ ) { |
nkeynes@1097 | 304 | uint32_t offset = (uint32_t)GUINT64_FROM_BE(etn2->offset); |
nkeynes@1097 | 305 | sector_mode_t mode = nrg_track_mode( GUINT32_FROM_BE(etn2->mode) ); |
nkeynes@1097 | 306 | if( mode == -1 ) { |
nkeynes@1097 | 307 | RETURN_PARSE_ERROR("Unknown track mode in NRG image file (%d)", etn2->mode); |
nkeynes@736 | 308 | } |
nkeynes@1097 | 309 | cdrom_count_t sector_count = (uint32_t)(GUINT64_FROM_BE(etn2->length) / |
nkeynes@1097 | 310 | CDROM_SECTOR_SIZE(mode)); |
nkeynes@1097 | 311 | |
nkeynes@1097 | 312 | disc->track[track_id].lba = GUINT32_FROM_BE(etn2->lba) + i*CDROM_PREGAP; |
nkeynes@1097 | 313 | if( mode == SECTOR_CDDA ) |
nkeynes@1023 | 314 | disc->track[track_id].flags = 0x01; |
nkeynes@736 | 315 | else |
nkeynes@1097 | 316 | disc->track[track_id].flags = 0x01 | TRACK_FLAG_DATA; |
nkeynes@1097 | 317 | disc->track[track_id].source = file_sector_source_new_source( disc->base_source, mode, offset, sector_count ); |
nkeynes@736 | 318 | track_id++; |
nkeynes@736 | 319 | } |
nkeynes@736 | 320 | break; |
nkeynes@736 | 321 | |
nkeynes@736 | 322 | case END_ID: |
nkeynes@736 | 323 | end = TRUE; |
nkeynes@736 | 324 | break; |
nkeynes@736 | 325 | } |
nkeynes@138 | 326 | } while( !end ); |
nkeynes@1097 | 327 | |
nkeynes@1023 | 328 | disc->track_count = track_id; |
nkeynes@1097 | 329 | disc->session_count = session_id-1; |
nkeynes@1097 | 330 | return TRUE; |
nkeynes@138 | 331 | } |
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