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 |
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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 | } |
c9e1affc |
118 | i = 100 / cue_data->track_count+1; |
9037e45d |
119 | for (num_track = 2; num_track <= cue_data->track_count; num_track++) |
120 | { |
c9e1affc |
121 | if (PicoCDLoadProgressCB != NULL) PicoCDLoadProgressCB(i * num_track); |
9037e45d |
122 | index = num_track - 1; |
123 | Cur_LBA += cue_data->tracks[num_track].pregap; |
124 | if (cue_data->tracks[num_track].type == CT_MP3) { |
125 | ret = audio_track_mp3(cue_data->tracks[num_track].fname, index); |
126 | if (ret != 0) break; |
127 | } |
128 | else |
129 | { |
130 | Tracks[index].ftype = cue_data->tracks[num_track].type; |
131 | if (cue_data->tracks[num_track].fname != NULL) |
132 | { |
c9e1affc |
133 | Tracks[index].F = pm_open(cue_data->tracks[num_track].fname); |
9037e45d |
134 | elprintf(EL_STATUS, "track %2i (%s): can't determine length", |
135 | cue_data->tracks[num_track].fname); |
136 | Tracks[index].Length = 2*75; |
137 | Tracks[index].Offset = 0; |
138 | } else { |
139 | if (num_track < cue_data->track_count) |
140 | Tracks[index].Length = cue_data->tracks[num_track+1].sector_offset - |
141 | cue_data->tracks[num_track].sector_offset; |
142 | else |
143 | Tracks[index].Length = cd_img_sectors - cue_data->tracks[num_track].sector_offset; |
144 | Tracks[index].Offset = cue_data->tracks[num_track].sector_offset; |
145 | } |
146 | } |
147 | |
148 | LBA_to_MSF(Cur_LBA, &Tracks[index].MSF); |
149 | Cur_LBA += Tracks[index].Length; |
bf098bc5 |
150 | |
9037e45d |
151 | elprintf(EL_STATUS, "Track %2i: %02d:%02d:%02d %9i AUDIO - %s", index, Tracks[index].MSF.M, |
152 | Tracks[index].MSF.S, Tracks[index].MSF.F, Tracks[index].Length, |
153 | cue_data->tracks[num_track].fname); |
154 | } |
155 | cue_destroy(cue_data); |
156 | goto finish; |
157 | } |
bf098bc5 |
158 | |
c9e1affc |
159 | /* mp3 track autosearch, Gens-like */ |
9037e45d |
160 | iso_name_len = strlen(cd_img_name); |
4b167c12 |
161 | if (iso_name_len >= sizeof(tmp_name)) |
162 | iso_name_len = sizeof(tmp_name) - 1; |
bf098bc5 |
163 | |
9037e45d |
164 | for (num_track = 2, i = 0, missed = 0; i < 100 && missed < 4; i++) |
bf098bc5 |
165 | { |
9037e45d |
166 | if (PicoCDLoadProgressCB != NULL && i > 1) PicoCDLoadProgressCB(i + (100-i)*missed/4); |
4b167c12 |
167 | |
168 | for (j = 0; j < sizeof(exts)/sizeof(char *); j++) |
bf098bc5 |
169 | { |
cb0316e4 |
170 | int ext_len; |
bf098bc5 |
171 | sprintf(tmp_ext, exts[j], i); |
cb0316e4 |
172 | ext_len = strlen(tmp_ext); |
173 | |
9037e45d |
174 | memcpy(tmp_name, cd_img_name, iso_name_len + 1); |
cb0316e4 |
175 | tmp_name[iso_name_len - 4] = 0; |
bf098bc5 |
176 | strcat(tmp_name, tmp_ext); |
177 | |
9037e45d |
178 | index = num_track - 1; |
179 | ret = audio_track_mp3(tmp_name, index); |
180 | if (ret != 0 && i > 1 && iso_name_len > ext_len) { |
cb0316e4 |
181 | tmp_name[iso_name_len - ext_len] = 0; |
182 | strcat(tmp_name, tmp_ext); |
9037e45d |
183 | ret = audio_track_mp3(tmp_name, index); |
cb0316e4 |
184 | } |
bf098bc5 |
185 | |
9037e45d |
186 | if (ret == 0) |
bf098bc5 |
187 | { |
75736070 |
188 | LBA_to_MSF(Cur_LBA, &Tracks[index].MSF); |
cb0316e4 |
189 | Cur_LBA += Tracks[index].Length; |
190 | |
9037e45d |
191 | elprintf(EL_STATUS, "Track %2i: %02d:%02d:%02d %9i AUDIO - %s", index, Tracks[index].MSF.M, |
192 | Tracks[index].MSF.S, Tracks[index].MSF.F, Tracks[index].Length, tmp_name); |
bf098bc5 |
193 | |
194 | num_track++; |
9037e45d |
195 | missed = 0; |
bf098bc5 |
196 | break; |
197 | } |
198 | } |
c9e1affc |
199 | if (ret != 0 && i > 1) missed++; |
bf098bc5 |
200 | } |
201 | |
9037e45d |
202 | finish: |
75736070 |
203 | Pico_mcd->TOC.Last_Track = num_track - 1; |
bf098bc5 |
204 | |
75736070 |
205 | index = num_track - 1; |
bf098bc5 |
206 | |
75736070 |
207 | LBA_to_MSF(Cur_LBA, &Tracks[index].MSF); |
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208 | |
9037e45d |
209 | elprintf(EL_STATUS, "End CD - %02d:%02d:%02d\n", Tracks[index].MSF.M, |
75736070 |
210 | Tracks[index].MSF.S, Tracks[index].MSF.F); |
bf098bc5 |
211 | |
4b167c12 |
212 | if (PicoCDLoadProgressCB != NULL) PicoCDLoadProgressCB(100); |
213 | |
bf098bc5 |
214 | return 0; |
215 | } |
216 | |
217 | |
eff55556 |
218 | PICO_INTERNAL void Unload_ISO(void) |
bf098bc5 |
219 | { |
220 | int i; |
221 | |
75736070 |
222 | if (Pico_mcd == NULL) return; |
bf098bc5 |
223 | |
83bd0b76 |
224 | if (Pico_mcd->TOC.Tracks[0].F) pm_close(Pico_mcd->TOC.Tracks[0].F); |
225 | |
226 | for(i = 1; i < 100; i++) |
bf098bc5 |
227 | { |
4b167c12 |
228 | if (Pico_mcd->TOC.Tracks[i].F != NULL) |
9037e45d |
229 | { |
c9e1affc |
230 | if (Pico_mcd->TOC.Tracks[i].ftype == TYPE_MP3) |
9037e45d |
231 | #if DONT_OPEN_MANY_FILES |
9037e45d |
232 | free(Pico_mcd->TOC.Tracks[i].F); |
c9e1affc |
233 | #else |
9037e45d |
234 | fclose(Pico_mcd->TOC.Tracks[i].F); |
c9e1affc |
235 | #endif |
236 | else |
237 | pm_close(Pico_mcd->TOC.Tracks[i].F); |
9037e45d |
238 | } |
bf098bc5 |
239 | } |
83bd0b76 |
240 | memset(Pico_mcd->TOC.Tracks, 0, sizeof(Pico_mcd->TOC.Tracks)); |
bf098bc5 |
241 | } |
242 | |
243 | |
eff55556 |
244 | PICO_INTERNAL int FILE_Read_One_LBA_CDC(void) |
bf098bc5 |
245 | { |
bf098bc5 |
246 | if (Pico_mcd->s68k_regs[0x36] & 1) // DATA |
247 | { |
75736070 |
248 | if (Pico_mcd->TOC.Tracks[0].F == NULL) return -1; |
bf098bc5 |
249 | |
75736070 |
250 | // moved below.. |
251 | //fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET); |
252 | //fread(cp_buf, 1, 2048, Pico_mcd->TOC.Tracks[0].F); |
bf098bc5 |
253 | |
c459aefd |
254 | cdprintf("Read file CDC 1 data sector :\n"); |
bf098bc5 |
255 | } |
256 | else // AUDIO |
257 | { |
c459aefd |
258 | cdprintf("Read file CDC 1 audio sector :\n"); |
bf098bc5 |
259 | } |
260 | |
261 | // Update CDC stuff |
262 | |
263 | CDC_Update_Header(); |
264 | |
265 | if (Pico_mcd->s68k_regs[0x36] & 1) // DATA track |
266 | { |
267 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable |
268 | { |
269 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer |
270 | { |
0a051f55 |
271 | int where_read = 0; |
272 | |
bf098bc5 |
273 | // CAUTION : lookahead bit not implemented |
274 | |
0a051f55 |
275 | if (Pico_mcd->scd.Cur_LBA < 0) |
276 | where_read = 0; |
277 | else if (Pico_mcd->scd.Cur_LBA >= Pico_mcd->TOC.Tracks[0].Length) |
278 | where_read = Pico_mcd->TOC.Tracks[0].Length - 1; |
279 | else where_read = Pico_mcd->scd.Cur_LBA; |
280 | |
bf098bc5 |
281 | Pico_mcd->scd.Cur_LBA++; |
282 | |
283 | Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA |
284 | Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF; |
285 | |
83bd0b76 |
286 | *(unsigned int *)(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N) = Pico_mcd->cdc.HEAD.N; |
75736070 |
287 | //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048); |
288 | |
0a051f55 |
289 | //pm_seek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET); |
290 | //pm_read(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, 2048, Pico_mcd->TOC.Tracks[0].F); |
291 | PicoCDBufferRead(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, where_read); |
bf098bc5 |
292 | |
c459aefd |
293 | cdprintf("Read -> WA = %d Buffer[%d] =", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF); |
294 | cdprintf("Header 1 = %.2X %.2X %.2X %.2X", Pico_mcd->cdc.HEAD.B.B0, |
bf098bc5 |
295 | Pico_mcd->cdc.HEAD.B.B1, Pico_mcd->cdc.HEAD.B.B2, Pico_mcd->cdc.HEAD.B.B3); |
296 | cdprintf("Header 2 = %.2X %.2X %.2X %.2X --- %.2X %.2X\n\n", |
297 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 0) & 0x3FFF], |
298 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 1) & 0x3FFF], |
299 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 2) & 0x3FFF], |
300 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 3) & 0x3FFF], |
301 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 4) & 0x3FFF], |
302 | Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 5) & 0x3FFF]); |
bf098bc5 |
303 | } |
304 | |
305 | } |
306 | } |
307 | else // music track |
308 | { |
309 | Pico_mcd->scd.Cur_LBA++; |
310 | |
311 | Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA |
312 | Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF; |
313 | |
314 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable |
315 | { |
316 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer |
317 | { |
318 | // CAUTION : lookahead bit not implemented |
319 | |
c9e1affc |
320 | // this is pretty rough, but oh well - not much depends on this anyway |
321 | memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cdda_out_buffer, 2352); |
bf098bc5 |
322 | } |
323 | } |
324 | } |
325 | |
326 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable |
327 | { |
328 | Pico_mcd->cdc.STAT.B.B0 = 0x80; |
329 | |
330 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x10) // determine form bit form sub header ? |
331 | { |
332 | Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x08; |
333 | } |
334 | else |
335 | { |
336 | Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x0C; |
337 | } |
338 | |
339 | if (Pico_mcd->cdc.CTRL.B.B0 & 0x02) Pico_mcd->cdc.STAT.B.B3 = 0x20; // ECC done |
340 | else Pico_mcd->cdc.STAT.B.B3 = 0x00; // ECC not done |
341 | |
342 | if (Pico_mcd->cdc.IFCTRL & 0x20) |
343 | { |
344 | if (Pico_mcd->s68k_regs[0x33] & (1<<5)) |
345 | { |
ca61ee42 |
346 | elprintf(EL_INTS, "cdc dec irq 5"); |
bf098bc5 |
347 | SekInterruptS68k(5); |
348 | } |
349 | |
75736070 |
350 | Pico_mcd->cdc.IFSTAT &= ~0x20; // DEC interrupt happen |
351 | Pico_mcd->cdc.Decode_Reg_Read = 0; // Reset read after DEC int |
bf098bc5 |
352 | } |
353 | } |
354 | |
355 | |
356 | return 0; |
357 | } |
358 | |