1 /***********************************************************
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 *
8 ***********************************************************/
10 #include "../PicoInt.h"
14 //#define cdprintf(f,...) printf(f "\n",##__VA_ARGS__) // tmp
16 static int audio_track_mp3(const char *fname, int index)
18 _scd_track *Tracks = Pico_mcd->TOC.Tracks;
22 tmp_file = fopen(fname, "rb");
26 ret = fseek(tmp_file, 0, SEEK_END);
27 fs = ftell(tmp_file); // used to calculate length
28 fseek(tmp_file, 0, SEEK_SET);
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.
34 tmp_file = (void *) strdup(fname);
36 Tracks[index].KBtps = (short) mp3_get_bitrate(tmp_file, fs);
37 Tracks[index].KBtps >>= 3;
38 if (ret != 0 || Tracks[index].KBtps <= 0)
40 elprintf(EL_STATUS, "track %2i: mp3 bitrate %i", index+1, Tracks[index].KBtps);
41 #if !DONT_OPEN_MANY_FILES
49 Tracks[index].F = tmp_file;
52 Tracks[index].ftype = TYPE_MP3;
54 fs /= Tracks[index].KBtps * 1000;
55 Tracks[index].Length = fs;
56 Tracks[index].Offset = 0;
61 PICO_INTERNAL int Load_CD_Image(const char *cd_img_name, cd_img_type type)
63 int i, j, num_track, Cur_LBA, index, ret, iso_name_len, missed, cd_img_sectors;
64 _scd_track *Tracks = Pico_mcd->TOC.Tracks;
65 char tmp_name[1024], tmp_ext[10];
66 cue_data_t *cue_data = NULL;
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",
72 "%02d.MP3", " %02d.MP3", "-%02d.MP3", "_%02d.MP3", " - %02d.MP3",
76 if (PicoCDLoadProgressCB != NULL) PicoCDLoadProgressCB(1);
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);
85 cd_img_name = cue_data->tracks[1].fname;
87 Tracks[0].ftype = type == CIT_BIN ? TYPE_BIN : TYPE_ISO;
89 Tracks[0].F = pmf = pm_open(cd_img_name);
90 if (Tracks[0].F == NULL)
95 cue_destroy(cue_data);
99 if (Tracks[0].ftype == TYPE_ISO)
100 cd_img_sectors = pmf->size >>= 11; // size in sectors
101 else cd_img_sectors = pmf->size /= 2352;
102 Tracks[0].Offset = 0;
104 Tracks[0].MSF.M = 0; // minutes
105 Tracks[0].MSF.S = 2; // seconds
106 Tracks[0].MSF.F = 0; // frames
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);
111 Cur_LBA = Tracks[0].Length = cd_img_sectors;
113 if (cue_data != NULL)
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;
118 for (num_track = 2; num_track <= cue_data->track_count; num_track++)
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);
128 Tracks[index].ftype = cue_data->tracks[num_track].type;
129 if (cue_data->tracks[num_track].fname != NULL)
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;
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;
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;
146 LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
147 Cur_LBA += Tracks[index].Length;
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);
153 cue_destroy(cue_data);
157 /* track autosearch, Gens-like */
158 iso_name_len = strlen(cd_img_name);
159 if (iso_name_len >= sizeof(tmp_name))
160 iso_name_len = sizeof(tmp_name) - 1;
162 for (num_track = 2, i = 0, missed = 0; i < 100 && missed < 4; i++)
164 if (PicoCDLoadProgressCB != NULL && i > 1) PicoCDLoadProgressCB(i + (100-i)*missed/4);
166 for (j = 0; j < sizeof(exts)/sizeof(char *); j++)
169 sprintf(tmp_ext, exts[j], i);
170 ext_len = strlen(tmp_ext);
172 memcpy(tmp_name, cd_img_name, iso_name_len + 1);
173 tmp_name[iso_name_len - 4] = 0;
174 strcat(tmp_name, tmp_ext);
176 index = num_track - 1;
177 ret = audio_track_mp3(tmp_name, index);
178 if (ret != 0 && i > 1 && iso_name_len > ext_len) {
179 tmp_name[iso_name_len - ext_len] = 0;
180 strcat(tmp_name, tmp_ext);
181 ret = audio_track_mp3(tmp_name, index);
186 LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
187 Cur_LBA += Tracks[index].Length;
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);
197 if (ret != 0) missed++;
201 Pico_mcd->TOC.Last_Track = num_track - 1;
203 index = num_track - 1;
205 LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
207 elprintf(EL_STATUS, "End CD - %02d:%02d:%02d\n", Tracks[index].MSF.M,
208 Tracks[index].MSF.S, Tracks[index].MSF.F);
210 if (PicoCDLoadProgressCB != NULL) PicoCDLoadProgressCB(100);
216 PICO_INTERNAL void Unload_ISO(void)
220 if (Pico_mcd == NULL) return;
222 if (Pico_mcd->TOC.Tracks[0].F) pm_close(Pico_mcd->TOC.Tracks[0].F);
224 for(i = 1; i < 100; i++)
226 if (Pico_mcd->TOC.Tracks[i].F != NULL)
228 #if DONT_OPEN_MANY_FILES
229 if (Pico_mcd->TOC.Tracks[i].type == TYPE_MP3)
230 free(Pico_mcd->TOC.Tracks[i].F);
233 fclose(Pico_mcd->TOC.Tracks[i].F);
236 memset(Pico_mcd->TOC.Tracks, 0, sizeof(Pico_mcd->TOC.Tracks));
240 PICO_INTERNAL int FILE_Read_One_LBA_CDC(void)
242 // static char cp_buf[2560];
244 if (Pico_mcd->s68k_regs[0x36] & 1) // DATA
246 if (Pico_mcd->TOC.Tracks[0].F == NULL) return -1;
249 //fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
250 //fread(cp_buf, 1, 2048, Pico_mcd->TOC.Tracks[0].F);
252 cdprintf("Read file CDC 1 data sector :\n");
256 // int rate, channel;
258 // if (Pico_mcd->TOC.Tracks[Pico_mcd->scd.Cur_Track - 1].ftype == TYPE_MP3)
261 // MP3_Update(cp_buf, &rate, &channel, 0);
262 // Write_CD_Audio((short *) cp_buf, rate, channel, 588);
265 cdprintf("Read file CDC 1 audio sector :\n");
272 if (Pico_mcd->s68k_regs[0x36] & 1) // DATA track
274 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
276 if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
280 // CAUTION : lookahead bit not implemented
282 if (Pico_mcd->scd.Cur_LBA < 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;
288 Pico_mcd->scd.Cur_LBA++;
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;
293 *(unsigned int *)(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N) = Pico_mcd->cdc.HEAD.N;
294 //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048);
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);
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,
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]);
316 Pico_mcd->scd.Cur_LBA++;
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;
321 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
323 if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
325 // CAUTION : lookahead bit not implemented
327 //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cp_buf, 2352);
332 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
334 Pico_mcd->cdc.STAT.B.B0 = 0x80;
336 if (Pico_mcd->cdc.CTRL.B.B0 & 0x10) // determine form bit form sub header ?
338 Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x08;
342 Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x0C;
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
348 if (Pico_mcd->cdc.IFCTRL & 0x20)
350 if (Pico_mcd->s68k_regs[0x33] & (1<<5))
352 elprintf(EL_INTS, "cdc dec irq 5");
356 Pico_mcd->cdc.IFSTAT &= ~0x20; // DEC interrupt happen
357 Pico_mcd->cdc.Decode_Reg_Read = 0; // Reset read after DEC int
366 PICO_INTERNAL int FILE_Play_CD_LBA(void)
368 int index = Pico_mcd->scd.Cur_Track - 1;
369 Pico_mcd->m.audio_track = index;
371 cdprintf("Play track #%i", Pico_mcd->scd.Cur_Track);
373 if (Pico_mcd->TOC.Tracks[index].F == NULL)
378 if (Pico_mcd->TOC.Tracks[index].ftype == TYPE_MP3)
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;
384 pos1024 = Track_LBA_Pos * 1024 / Pico_mcd->TOC.Tracks[index].Length;
386 mp3_start_play(Pico_mcd->TOC.Tracks[index].F, pos1024);