6cadc2da |
1 | /*********************************************************** |
2 | * * |
3 | * This source was taken from the Gens project * |
4 | * Written by Stéphane Dallongeville * |
5 | * Copyright (c) 2002 by Stéphane Dallongeville * |
6 | * Modified/adapted for PicoDrive by notaz, 2007 * |
7 | * * |
8 | ***********************************************************/ |
9 | |
bf098bc5 |
10 | #include "../PicoInt.h" |
eff55556 |
11 | #include "cd_file.h" |
9037e45d |
12 | #include "cue.h" |
bf098bc5 |
13 | |
4b167c12 |
14 | //#define cdprintf(f,...) printf(f "\n",##__VA_ARGS__) // tmp |
bf098bc5 |
15 | |
9037e45d |
16 | static int audio_track_mp3(const char *fname, int index) |
bf098bc5 |
17 | { |
9037e45d |
18 | _scd_track *Tracks = Pico_mcd->TOC.Tracks; |
19 | FILE *tmp_file; |
20 | int fs, ret; |
21 | |
22 | tmp_file = fopen(fname, "rb"); |
23 | if (tmp_file == NULL) |
24 | return -1; |
25 | |
26 | ret = fseek(tmp_file, 0, SEEK_END); |
27 | fs = ftell(tmp_file); // used to calculate length |
28 | fseek(tmp_file, 0, SEEK_SET); |
29 | |
30 | #if DONT_OPEN_MANY_FILES |
31 | // some systems (like PSP) can't have many open files at a time, |
32 | // so we work with their names instead. |
33 | fclose(tmp_file); |
34 | tmp_file = (void *) strdup(fname); |
35 | #endif |
36 | Tracks[index].KBtps = (short) mp3_get_bitrate(tmp_file, fs); |
37 | Tracks[index].KBtps >>= 3; |
38 | if (ret != 0 || Tracks[index].KBtps <= 0) |
39 | { |
40 | elprintf(EL_STATUS, "track %2i: mp3 bitrate %i", index+1, Tracks[index].KBtps); |
41 | #if !DONT_OPEN_MANY_FILES |
42 | fclose(tmp_file); |
43 | #else |
44 | free(tmp_file); |
45 | #endif |
46 | return -1; |
47 | } |
48 | |
49 | Tracks[index].F = tmp_file; |
50 | |
51 | // MP3 File |
52 | Tracks[index].ftype = TYPE_MP3; |
53 | fs *= 75; |
54 | fs /= Tracks[index].KBtps * 1000; |
55 | Tracks[index].Length = fs; |
56 | Tracks[index].Offset = 0; |
57 | |
58 | return 0; |
59 | } |
60 | |
61 | PICO_INTERNAL int Load_CD_Image(const char *cd_img_name, cd_img_type type) |
62 | { |
63 | int i, j, num_track, Cur_LBA, index, ret, iso_name_len, missed, cd_img_sectors; |
75736070 |
64 | _scd_track *Tracks = Pico_mcd->TOC.Tracks; |
bf098bc5 |
65 | char tmp_name[1024], tmp_ext[10]; |
9037e45d |
66 | cue_data_t *cue_data = NULL; |
83bd0b76 |
67 | pm_file *pmf; |
bf098bc5 |
68 | static char *exts[] = { |
69 | "%02d.mp3", " %02d.mp3", "-%02d.mp3", "_%02d.mp3", " - %02d.mp3", |
70 | "%d.mp3", " %d.mp3", "-%d.mp3", "_%d.mp3", " - %d.mp3", |
4b167c12 |
71 | #if CASE_SENSITIVE_FS |
51a902ae |
72 | "%02d.MP3", " %02d.MP3", "-%02d.MP3", "_%02d.MP3", " - %02d.MP3", |
4b167c12 |
73 | #endif |
bf098bc5 |
74 | }; |
75 | |
4b167c12 |
76 | if (PicoCDLoadProgressCB != NULL) PicoCDLoadProgressCB(1); |
77 | |
bf098bc5 |
78 | Unload_ISO(); |
79 | |
9037e45d |
80 | /* is this .cue? */ |
81 | ret = strlen(cd_img_name); |
82 | if (ret >= 3 && strcasecmp(cd_img_name + ret - 3, "cue") == 0) |
83 | cue_data = cue_parse(cd_img_name); |
84 | if (cue_data != NULL) |
85 | cd_img_name = cue_data->tracks[1].fname; |
86 | |
b923ecbe |
87 | Tracks[0].ftype = type == CIT_BIN ? TYPE_BIN : TYPE_ISO; |
bf098bc5 |
88 | |
9037e45d |
89 | Tracks[0].F = pmf = pm_open(cd_img_name); |
bf098bc5 |
90 | if (Tracks[0].F == NULL) |
91 | { |
75736070 |
92 | Tracks[0].ftype = 0; |
cb0316e4 |
93 | Tracks[0].Length = 0; |
9037e45d |
94 | if (cue_data != NULL) |
95 | cue_destroy(cue_data); |
bf098bc5 |
96 | return -1; |
97 | } |
98 | |
83bd0b76 |
99 | if (Tracks[0].ftype == TYPE_ISO) |
9037e45d |
100 | cd_img_sectors = pmf->size >>= 11; // size in sectors |
101 | else cd_img_sectors = pmf->size /= 2352; |
102 | Tracks[0].Offset = 0; |
bf098bc5 |
103 | |
75736070 |
104 | Tracks[0].MSF.M = 0; // minutes |
105 | Tracks[0].MSF.S = 2; // seconds |
106 | Tracks[0].MSF.F = 0; // frames |
bf098bc5 |
107 | |
9037e45d |
108 | elprintf(EL_STATUS, "Track 0: %02d:%02d:%02d %9i DATA", |
109 | Tracks[0].MSF.M, Tracks[0].MSF.S, Tracks[0].MSF.F, Tracks[0].Length); |
110 | |
111 | Cur_LBA = Tracks[0].Length = cd_img_sectors; |
112 | |
113 | if (cue_data != NULL) |
114 | { |
115 | if (cue_data->tracks[2].fname == NULL) { // NULL means track2 is in same file as track1 |
116 | Cur_LBA = Tracks[0].Length = cue_data->tracks[2].sector_offset; |
117 | } |
118 | for (num_track = 2; num_track <= cue_data->track_count; num_track++) |
119 | { |
120 | index = num_track - 1; |
121 | Cur_LBA += cue_data->tracks[num_track].pregap; |
122 | if (cue_data->tracks[num_track].type == CT_MP3) { |
123 | ret = audio_track_mp3(cue_data->tracks[num_track].fname, index); |
124 | if (ret != 0) break; |
125 | } |
126 | else |
127 | { |
128 | Tracks[index].ftype = cue_data->tracks[num_track].type; |
129 | if (cue_data->tracks[num_track].fname != NULL) |
130 | { |
131 | Tracks[index].F = fopen(cue_data->tracks[num_track].fname, "rb"); |
132 | elprintf(EL_STATUS, "track %2i (%s): can't determine length", |
133 | cue_data->tracks[num_track].fname); |
134 | Tracks[index].Length = 2*75; |
135 | Tracks[index].Offset = 0; |
136 | } else { |
137 | if (num_track < cue_data->track_count) |
138 | Tracks[index].Length = cue_data->tracks[num_track+1].sector_offset - |
139 | cue_data->tracks[num_track].sector_offset; |
140 | else |
141 | Tracks[index].Length = cd_img_sectors - cue_data->tracks[num_track].sector_offset; |
142 | Tracks[index].Offset = cue_data->tracks[num_track].sector_offset; |
143 | } |
144 | } |
145 | |
146 | LBA_to_MSF(Cur_LBA, &Tracks[index].MSF); |
147 | Cur_LBA += Tracks[index].Length; |
bf098bc5 |
148 | |
9037e45d |
149 | elprintf(EL_STATUS, "Track %2i: %02d:%02d:%02d %9i AUDIO - %s", index, Tracks[index].MSF.M, |
150 | Tracks[index].MSF.S, Tracks[index].MSF.F, Tracks[index].Length, |
151 | cue_data->tracks[num_track].fname); |
152 | } |
153 | cue_destroy(cue_data); |
154 | goto finish; |
155 | } |
bf098bc5 |
156 | |
9037e45d |
157 | /* track autosearch, Gens-like */ |
158 | iso_name_len = strlen(cd_img_name); |
4b167c12 |
159 | if (iso_name_len >= sizeof(tmp_name)) |
160 | iso_name_len = sizeof(tmp_name) - 1; |
bf098bc5 |
161 | |
9037e45d |
162 | for (num_track = 2, i = 0, missed = 0; i < 100 && missed < 4; i++) |
bf098bc5 |
163 | { |
9037e45d |
164 | if (PicoCDLoadProgressCB != NULL && i > 1) PicoCDLoadProgressCB(i + (100-i)*missed/4); |
4b167c12 |
165 | |
166 | for (j = 0; j < sizeof(exts)/sizeof(char *); j++) |
bf098bc5 |
167 | { |
cb0316e4 |
168 | int ext_len; |
bf098bc5 |
169 | sprintf(tmp_ext, exts[j], i); |
cb0316e4 |
170 | ext_len = strlen(tmp_ext); |
171 | |
9037e45d |
172 | memcpy(tmp_name, cd_img_name, iso_name_len + 1); |
cb0316e4 |
173 | tmp_name[iso_name_len - 4] = 0; |
bf098bc5 |
174 | strcat(tmp_name, tmp_ext); |
175 | |
9037e45d |
176 | index = num_track - 1; |
177 | ret = audio_track_mp3(tmp_name, index); |
178 | if (ret != 0 && i > 1 && iso_name_len > ext_len) { |
cb0316e4 |
179 | tmp_name[iso_name_len - ext_len] = 0; |
180 | strcat(tmp_name, tmp_ext); |
9037e45d |
181 | ret = audio_track_mp3(tmp_name, index); |
cb0316e4 |
182 | } |
bf098bc5 |
183 | |
9037e45d |
184 | if (ret == 0) |
bf098bc5 |
185 | { |
75736070 |
186 | LBA_to_MSF(Cur_LBA, &Tracks[index].MSF); |
cb0316e4 |
187 | Cur_LBA += Tracks[index].Length; |
188 | |
9037e45d |
189 | elprintf(EL_STATUS, "Track %2i: %02d:%02d:%02d %9i AUDIO - %s", index, Tracks[index].MSF.M, |
190 | Tracks[index].MSF.S, Tracks[index].MSF.F, Tracks[index].Length, tmp_name); |
bf098bc5 |
191 | |
192 | num_track++; |
9037e45d |
193 | missed = 0; |
bf098bc5 |
194 | break; |
195 | } |
196 | } |
9037e45d |
197 | if (ret != 0) missed++; |
bf098bc5 |
198 | } |
199 | |
9037e45d |
200 | finish: |
75736070 |
201 | Pico_mcd->TOC.Last_Track = num_track - 1; |
bf098bc5 |
202 | |
75736070 |
203 | index = num_track - 1; |
bf098bc5 |
204 | |
75736070 |
205 | LBA_to_MSF(Cur_LBA, &Tracks[index].MSF); |
bf098bc5 |
206 | |
9037e45d |
207 | elprintf(EL_STATUS, "End CD - %02d:%02d:%02d\n", Tracks[index].MSF.M, |
75736070 |
208 | Tracks[index].MSF.S, Tracks[index].MSF.F); |
bf098bc5 |
209 | |
4b167c12 |
210 | if (PicoCDLoadProgressCB != NULL) PicoCDLoadProgressCB(100); |
211 | |
bf098bc5 |
212 | return 0; |
213 | } |
214 | |
215 | |
eff55556 |
216 | PICO_INTERNAL void Unload_ISO(void) |
bf098bc5 |
217 | { |
218 | int i; |
219 | |
75736070 |
220 | if (Pico_mcd == NULL) return; |
bf098bc5 |
221 | |
83bd0b76 |
222 | if (Pico_mcd->TOC.Tracks[0].F) pm_close(Pico_mcd->TOC.Tracks[0].F); |
223 | |
224 | for(i = 1; i < 100; i++) |
bf098bc5 |
225 | { |
4b167c12 |
226 | if (Pico_mcd->TOC.Tracks[i].F != NULL) |
9037e45d |
227 | { |
228 | #if DONT_OPEN_MANY_FILES |
229 | if (Pico_mcd->TOC.Tracks[i].type == TYPE_MP3) |
230 | free(Pico_mcd->TOC.Tracks[i].F); |
231 | else |
4b167c12 |
232 | #endif |
9037e45d |
233 | fclose(Pico_mcd->TOC.Tracks[i].F); |
234 | } |
bf098bc5 |
235 | } |
83bd0b76 |
236 | memset(Pico_mcd->TOC.Tracks, 0, sizeof(Pico_mcd->TOC.Tracks)); |
bf098bc5 |
237 | } |
238 | |
239 | |
eff55556 |
240 | PICO_INTERNAL int FILE_Read_One_LBA_CDC(void) |
bf098bc5 |
241 | { |
75736070 |
242 | // static char cp_buf[2560]; |
bf098bc5 |
243 | |
244 | if (Pico_mcd->s68k_regs[0x36] & 1) // DATA |
245 | { |
75736070 |
246 | if (Pico_mcd->TOC.Tracks[0].F == NULL) return -1; |
bf098bc5 |
247 | |
75736070 |
248 | // moved below.. |
249 | //fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET); |
250 | //fread(cp_buf, 1, 2048, Pico_mcd->TOC.Tracks[0].F); |
bf098bc5 |
251 | |
c459aefd |
252 | cdprintf("Read file CDC 1 data sector :\n"); |
bf098bc5 |
253 | } |
254 | else // AUDIO |
255 | { |
256 | // int rate, channel; |
257 | |
0a051f55 |
258 | // if (Pico_mcd->TOC.Tracks[Pico_mcd->scd.Cur_Track - 1].ftype == TYPE_MP3) |
bf098bc5 |
259 | { |
260 | // TODO |
261 | // MP3_Update(cp_buf, &rate, &channel, 0); |
262 | // Write_CD_Audio((short *) cp_buf, rate, channel, 588); |
263 | } |
264 | |
c459aefd |
265 | cdprintf("Read file CDC 1 audio sector :\n"); |
bf098bc5 |
266 | } |
267 | |
268 | // Update CDC stuff |
269 | |
270 | CDC_Update_Header(); |
271 | |
272 | if (Pico_mcd->s68k_regs[0x36] & 1) // DATA track |
273 | { |
274 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable |
275 | { |
276 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer |
277 | { |
0a051f55 |
278 | int where_read = 0; |
279 | |
bf098bc5 |
280 | // CAUTION : lookahead bit not implemented |
281 | |
0a051f55 |
282 | if (Pico_mcd->scd.Cur_LBA < 0) |
283 | where_read = 0; |
284 | else if (Pico_mcd->scd.Cur_LBA >= Pico_mcd->TOC.Tracks[0].Length) |
285 | where_read = Pico_mcd->TOC.Tracks[0].Length - 1; |
286 | else where_read = Pico_mcd->scd.Cur_LBA; |
287 | |
bf098bc5 |
288 | Pico_mcd->scd.Cur_LBA++; |
289 | |
290 | Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA |
291 | Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF; |
292 | |
83bd0b76 |
293 | *(unsigned int *)(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N) = Pico_mcd->cdc.HEAD.N; |
75736070 |
294 | //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048); |
295 | |
0a051f55 |
296 | //pm_seek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET); |
297 | //pm_read(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, 2048, Pico_mcd->TOC.Tracks[0].F); |
298 | PicoCDBufferRead(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, where_read); |
bf098bc5 |
299 | |
c459aefd |
300 | cdprintf("Read -> WA = %d Buffer[%d] =", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF); |
301 | cdprintf("Header 1 = %.2X %.2X %.2X %.2X", Pico_mcd->cdc.HEAD.B.B0, |
bf098bc5 |
302 | Pico_mcd->cdc.HEAD.B.B1, Pico_mcd->cdc.HEAD.B.B2, Pico_mcd->cdc.HEAD.B.B3); |
303 | cdprintf("Header 2 = %.2X %.2X %.2X %.2X --- %.2X %.2X\n\n", |
304 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 0) & 0x3FFF], |
305 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 1) & 0x3FFF], |
306 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 2) & 0x3FFF], |
307 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 3) & 0x3FFF], |
308 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 4) & 0x3FFF], |
309 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 5) & 0x3FFF]); |
bf098bc5 |
310 | } |
311 | |
312 | } |
313 | } |
314 | else // music track |
315 | { |
316 | Pico_mcd->scd.Cur_LBA++; |
317 | |
318 | Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA |
319 | Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF; |
320 | |
321 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable |
322 | { |
323 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer |
324 | { |
325 | // CAUTION : lookahead bit not implemented |
326 | |
75736070 |
327 | //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cp_buf, 2352); |
bf098bc5 |
328 | } |
329 | } |
330 | } |
331 | |
332 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable |
333 | { |
334 | Pico_mcd->cdc.STAT.B.B0 = 0x80; |
335 | |
336 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x10) // determine form bit form sub header ? |
337 | { |
338 | Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x08; |
339 | } |
340 | else |
341 | { |
342 | Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x0C; |
343 | } |
344 | |
345 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x02) Pico_mcd->cdc.STAT.B.B3 = 0x20; // ECC done |
346 | else Pico_mcd->cdc.STAT.B.B3 = 0x00; // ECC not done |
347 | |
348 | if (Pico_mcd->cdc.IFCTRL & 0x20) |
349 | { |
350 | if (Pico_mcd->s68k_regs[0x33] & (1<<5)) |
351 | { |
ca61ee42 |
352 | elprintf(EL_INTS, "cdc dec irq 5"); |
bf098bc5 |
353 | SekInterruptS68k(5); |
354 | } |
355 | |
75736070 |
356 | Pico_mcd->cdc.IFSTAT &= ~0x20; // DEC interrupt happen |
357 | Pico_mcd->cdc.Decode_Reg_Read = 0; // Reset read after DEC int |
bf098bc5 |
358 | } |
359 | } |
360 | |
361 | |
362 | return 0; |
363 | } |
364 | |
365 | |
eff55556 |
366 | PICO_INTERNAL int FILE_Play_CD_LBA(void) |
bf098bc5 |
367 | { |
75736070 |
368 | int index = Pico_mcd->scd.Cur_Track - 1; |
369 | Pico_mcd->m.audio_track = index; |
bf098bc5 |
370 | |
75736070 |
371 | cdprintf("Play track #%i", Pico_mcd->scd.Cur_Track); |
bf098bc5 |
372 | |
75736070 |
373 | if (Pico_mcd->TOC.Tracks[index].F == NULL) |
bf098bc5 |
374 | { |
375 | return 1; |
376 | } |
377 | |
75736070 |
378 | if (Pico_mcd->TOC.Tracks[index].ftype == TYPE_MP3) |
bf098bc5 |
379 | { |
75736070 |
380 | int pos1024 = 0; |
bf098bc5 |
381 | int Track_LBA_Pos = Pico_mcd->scd.Cur_LBA - Track_to_LBA(Pico_mcd->scd.Cur_Track); |
382 | if (Track_LBA_Pos < 0) Track_LBA_Pos = 0; |
cb0316e4 |
383 | if (Track_LBA_Pos) |
75736070 |
384 | pos1024 = Track_LBA_Pos * 1024 / Pico_mcd->TOC.Tracks[index].Length; |
bf098bc5 |
385 | |
75736070 |
386 | mp3_start_play(Pico_mcd->TOC.Tracks[index].F, pos1024); |
bf098bc5 |
387 | } |
388 | else |
389 | { |
390 | return 3; |
391 | } |
392 | |
393 | return 0; |
394 | } |
395 | |