4 #include "../PicoInt.h"
6 #define cdprintf dprintf
7 //#define cdprintf(x...)
17 int Load_ISO(const char *iso_name, int is_bin)
19 struct stat file_stat;
20 int i, j, num_track, Cur_LBA, index, ret, iso_name_len;
21 _scd_track *Tracks = Pico_mcd->TOC.Tracks;
23 char tmp_name[1024], tmp_ext[10];
24 static char *exts[] = {
25 "%02d.mp3", " %02d.mp3", "-%02d.mp3", "_%02d.mp3", " - %02d.mp3",
26 "%d.mp3", " %d.mp3", "-%d.mp3", "_%d.mp3", " - %d.mp3",
27 "%02d.MP3", " %02d.MP3", "-%02d.MP3", "_%02d.MP3", " - %02d.MP3",
28 /* "%02d.wav", " %02d.wav", "-%02d.wav", "_%02d.wav", " - %02d.wav",
29 "%d.wav", " %d.wav", "-%d.wav", "_%d.wav", " - %2d.wav" */
34 Tracks[0].ftype = is_bin ? TYPE_BIN : TYPE_ISO;
36 ret = stat(iso_name, &file_stat);
37 if (ret != 0) return -1;
39 Tracks[0].Length = file_stat.st_size;
41 if (Tracks[0].ftype == TYPE_ISO) Tracks[0].Length >>= 11; // size in sectors
42 else Tracks[0].Length /= 2352; // size in sectors
45 Tracks[0].F = fopen(iso_name, "rb");
46 if (Tracks[0].F == NULL)
53 if (Tracks[0].ftype == TYPE_ISO) fseek(Tracks[0].F, 0x100, SEEK_SET);
54 else fseek(Tracks[0].F, 0x110, SEEK_SET);
56 // fread(buf, 1, 0x200, Tracks[0].F);
57 fseek(Tracks[0].F, 0, SEEK_SET);
59 Tracks[0].MSF.M = 0; // minutes
60 Tracks[0].MSF.S = 2; // seconds
61 Tracks[0].MSF.F = 0; // frames
63 cdprintf("Track 0 - %02d:%02d:%02d DATA", Tracks[0].MSF.M, Tracks[0].MSF.S, Tracks[0].MSF.F);
65 Cur_LBA = Tracks[0].Length; // Size in sectors
67 strcpy(tmp_name, iso_name);
68 iso_name_len = strlen(iso_name);
70 for (num_track = 2, i = 0; i < 100; i++)
72 for(j = 0; j < sizeof(exts)/sizeof(char *); j++)
75 sprintf(tmp_ext, exts[j], i);
76 ext_len = strlen(tmp_ext);
78 memcpy(tmp_name, iso_name, iso_name_len + 1);
79 tmp_name[iso_name_len - 4] = 0;
80 strcat(tmp_name, tmp_ext);
82 tmp_file = fopen(tmp_name, "rb");
83 if (!tmp_file && i > 1 && iso_name_len > ext_len) {
84 tmp_name[iso_name_len - ext_len] = 0;
85 strcat(tmp_name, tmp_ext);
86 tmp_file = fopen(tmp_name, "rb");
93 index = num_track - 1;
95 ret = stat(tmp_name, &file_stat);
96 fs = file_stat.st_size; // used to calculate lenght
98 Tracks[index].KBtps = (short) mp3_get_bitrate(tmp_file, fs);
99 Tracks[index].KBtps >>= 3;
100 if (ret != 0 || Tracks[index].KBtps <= 0)
102 cdprintf("Error track %i: stat %i, rate %i", index, ret, Tracks[index].KBtps);
107 Tracks[index].F = tmp_file;
109 LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
112 Tracks[index].ftype = TYPE_MP3;
114 fs /= Tracks[index].KBtps * 1000;
115 Tracks[index].Length = fs;
116 Cur_LBA += Tracks[index].Length;
118 cdprintf("Track %i: %s - %02d:%02d:%02d len=%i AUDIO", index, tmp_name, Tracks[index].MSF.M,
119 Tracks[index].MSF.S, Tracks[index].MSF.F, fs);
127 Pico_mcd->TOC.Last_Track = num_track - 1;
129 index = num_track - 1;
131 LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
133 cdprintf("End CD - %02d:%02d:%02d\n\n", Tracks[index].MSF.M,
134 Tracks[index].MSF.S, Tracks[index].MSF.F);
140 void Unload_ISO(void)
144 if (Pico_mcd == NULL) return;
146 for(i = 0; i < 100; i++)
148 if (Pico_mcd->TOC.Tracks[i].F) fclose(Pico_mcd->TOC.Tracks[i].F);
149 Pico_mcd->TOC.Tracks[i].F = NULL;
150 Pico_mcd->TOC.Tracks[i].Length = 0;
151 Pico_mcd->TOC.Tracks[i].ftype = 0;
156 int FILE_Read_One_LBA_CDC(void)
159 // static char cp_buf[2560];
161 if (Pico_mcd->s68k_regs[0x36] & 1) // DATA
163 if (Pico_mcd->TOC.Tracks[0].F == NULL) return -1;
165 if (Pico_mcd->scd.Cur_LBA < 0)
167 else if (Pico_mcd->scd.Cur_LBA >= Pico_mcd->TOC.Tracks[0].Length)
168 where_read = Pico_mcd->TOC.Tracks[0].Length - 1;
169 else where_read = Pico_mcd->scd.Cur_LBA;
171 if (Pico_mcd->TOC.Tracks[0].ftype == TYPE_ISO) where_read <<= 11;
172 else where_read = (where_read * 2352 + 16);
175 //fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
176 //fread(cp_buf, 1, 2048, Pico_mcd->TOC.Tracks[0].F);
178 cdprintf("Read file CDC 1 data sector :\n");
182 // int rate, channel;
184 if (Pico_mcd->TOC.Tracks[Pico_mcd->scd.Cur_Track - 1].ftype == TYPE_MP3)
187 // MP3_Update(cp_buf, &rate, &channel, 0);
188 // Write_CD_Audio((short *) cp_buf, rate, channel, 588);
191 cdprintf("Read file CDC 1 audio sector :\n");
198 if (Pico_mcd->s68k_regs[0x36] & 1) // DATA track
200 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
202 if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
204 // CAUTION : lookahead bit not implemented
206 Pico_mcd->scd.Cur_LBA++;
208 Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA
209 Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
211 memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], &Pico_mcd->cdc.HEAD, 4);
212 //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048);
214 fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
215 fread(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, 1, 2048, Pico_mcd->TOC.Tracks[0].F);
218 cdprintf("Read -> WA = %d Buffer[%d] =", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF);
219 cdprintf("Header 1 = %.2X %.2X %.2X %.2X", Pico_mcd->cdc.HEAD.B.B0,
220 Pico_mcd->cdc.HEAD.B.B1, Pico_mcd->cdc.HEAD.B.B2, Pico_mcd->cdc.HEAD.B.B3);
221 cdprintf("Header 2 = %.2X %.2X %.2X %.2X --- %.2X %.2X\n\n",
222 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 0) & 0x3FFF],
223 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 1) & 0x3FFF],
224 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 2) & 0x3FFF],
225 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 3) & 0x3FFF],
226 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 4) & 0x3FFF],
227 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 5) & 0x3FFF]);
235 Pico_mcd->scd.Cur_LBA++;
237 Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA
238 Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
240 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
242 if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
244 // CAUTION : lookahead bit not implemented
246 //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cp_buf, 2352);
251 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
253 Pico_mcd->cdc.STAT.B.B0 = 0x80;
255 if (Pico_mcd->cdc.CTRL.B.B0 & 0x10) // determine form bit form sub header ?
257 Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x08;
261 Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x0C;
264 if (Pico_mcd->cdc.CTRL.B.B0 & 0x02) Pico_mcd->cdc.STAT.B.B3 = 0x20; // ECC done
265 else Pico_mcd->cdc.STAT.B.B3 = 0x00; // ECC not done
267 if (Pico_mcd->cdc.IFCTRL & 0x20)
269 if (Pico_mcd->s68k_regs[0x33] & (1<<5))
271 dprintf("cdc dec irq 5");
275 Pico_mcd->cdc.IFSTAT &= ~0x20; // DEC interrupt happen
276 Pico_mcd->cdc.Decode_Reg_Read = 0; // Reset read after DEC int
285 int FILE_Play_CD_LBA(void)
287 int index = Pico_mcd->scd.Cur_Track - 1;
288 Pico_mcd->m.audio_track = index;
290 cdprintf("Play track #%i", Pico_mcd->scd.Cur_Track);
292 if (Pico_mcd->TOC.Tracks[index].F == NULL)
297 if (Pico_mcd->TOC.Tracks[index].ftype == TYPE_MP3)
300 int Track_LBA_Pos = Pico_mcd->scd.Cur_LBA - Track_to_LBA(Pico_mcd->scd.Cur_Track);
301 if (Track_LBA_Pos < 0) Track_LBA_Pos = 0;
303 pos1024 = Track_LBA_Pos * 1024 / Pico_mcd->TOC.Tracks[index].Length;
305 mp3_start_play(Pico_mcd->TOC.Tracks[index].F, pos1024);