1.10 release
[picodrive.git] / Pico / cd / cd_file.c
CommitLineData
bf098bc5 1/*
2#include <stdio.h>
3#include <string.h>
4#if defined(__WIN__)
5#include <windows.h>
6#else
7#include "port.h"
8#endif
9#include "cd_sys.h"
10#include "cd_file.h"
11#include "lc89510.h"
12#include "cdda_mp3.h"
13#include "star_68k.h"
14#include "rom.h"
15#include "mem_s68k.h"
16*/
17
18#include <sys/stat.h>
19#include "cd_file.h"
20
21#include "../PicoInt.h"
22
c459aefd 23#define cdprintf dprintf
bf098bc5 24//#define cdprintf(x...)
c459aefd 25#define DEBUG_CD
bf098bc5 26
27struct _file_track Tracks[100];
28char Track_Played;
29
30
31int FILE_Init(void)
32{
33// MP3_Init(); // TODO
34 Unload_ISO();
35
36 return 0;
37}
38
39
40void FILE_End(void)
41{
42 Unload_ISO();
43}
44
45
46int Load_ISO(const char *iso_name, int is_bin)
47{
48 struct stat file_stat;
cb0316e4 49 int i, j, num_track, Cur_LBA, index, ret, iso_name_len;
bf098bc5 50 _scd_track *SCD_TOC_Tracks = Pico_mcd->scd.TOC.Tracks;
51 FILE *tmp_file;
52 char tmp_name[1024], tmp_ext[10];
53 static char *exts[] = {
54 "%02d.mp3", " %02d.mp3", "-%02d.mp3", "_%02d.mp3", " - %02d.mp3",
55 "%d.mp3", " %d.mp3", "-%d.mp3", "_%d.mp3", " - %d.mp3",
56 /* "%02d.wav", " %02d.wav", "-%02d.wav", "_%02d.wav", " - %02d.wav",
57 "%d.wav", " %d.wav", "-%d.wav", "_%d.wav", " - %2d.wav" */
58 };
59
60 Unload_ISO();
61
62 Tracks[0].Type = is_bin ? TYPE_BIN : TYPE_ISO;
63
64 ret = stat(iso_name, &file_stat);
65 if (ret != 0) return -1;
66
cb0316e4 67 Tracks[0].Length = file_stat.st_size;
bf098bc5 68
cb0316e4 69 if (Tracks[0].Type == TYPE_ISO) Tracks[0].Length >>= 11; // size in sectors
70 else Tracks[0].Length /= 2352; // size in sectors
bf098bc5 71
72
73 Tracks[0].F = fopen(iso_name, "rb");
74 if (Tracks[0].F == NULL)
75 {
76 Tracks[0].Type = 0;
cb0316e4 77 Tracks[0].Length = 0;
bf098bc5 78 return -1;
79 }
80
81 if (Tracks[0].Type == TYPE_ISO) fseek(Tracks[0].F, 0x100, SEEK_SET);
82 else fseek(Tracks[0].F, 0x110, SEEK_SET);
83
84 // fread(buf, 1, 0x200, Tracks[0].F);
85 fseek(Tracks[0].F, 0, SEEK_SET);
86
87 Pico_mcd->scd.TOC.First_Track = 1;
88
89 SCD_TOC_Tracks[0].Num = 1;
90 SCD_TOC_Tracks[0].Type = 1; // DATA
91
cb0316e4 92 SCD_TOC_Tracks[0].MSF.M = 0; // minutes
93 SCD_TOC_Tracks[0].MSF.S = 2; // seconds
94 SCD_TOC_Tracks[0].MSF.F = 0; // frames
bf098bc5 95
c459aefd 96 cdprintf("Track 0 - %02d:%02d:%02d %s", SCD_TOC_Tracks[0].MSF.M, SCD_TOC_Tracks[0].MSF.S, SCD_TOC_Tracks[0].MSF.F,
bf098bc5 97 SCD_TOC_Tracks[0].Type ? "DATA" : "AUDIO");
98
cb0316e4 99 Cur_LBA = Tracks[0].Length; // Size in sectors
bf098bc5 100
101 strcpy(tmp_name, iso_name);
cb0316e4 102 iso_name_len = strlen(iso_name);
bf098bc5 103
cb0316e4 104 for (num_track = 2, i = 0; i < 100; i++)
bf098bc5 105 {
106 if (sizeof(exts)/sizeof(char *) != 10) { printf("eee"); exit(1); }
107
108 for(j = 0; j < sizeof(exts)/sizeof(char *); j++)
109 {
cb0316e4 110 int ext_len;
bf098bc5 111 sprintf(tmp_ext, exts[j], i);
cb0316e4 112 ext_len = strlen(tmp_ext);
113
114 memcpy(tmp_name, iso_name, iso_name_len + 1);
115 tmp_name[iso_name_len - 4] = 0;
bf098bc5 116 strcat(tmp_name, tmp_ext);
117
118 tmp_file = fopen(tmp_name, "rb");
cb0316e4 119 if (!tmp_file && i > 1 && iso_name_len > ext_len) {
120 tmp_name[iso_name_len - ext_len] = 0;
121 strcat(tmp_name, tmp_ext);
122 tmp_file = fopen(tmp_name, "rb");
123 }
bf098bc5 124
125 if (tmp_file)
126 {
cb0316e4 127 // float fs;
128 int fs;
bf098bc5 129 index = num_track - Pico_mcd->scd.TOC.First_Track;
130
cb0316e4 131 ret = stat(tmp_name, &file_stat);
132 fs = file_stat.st_size; // used to calculate lenght
bf098bc5 133
cb0316e4 134 Tracks[index].KBtps = (short) mp3_get_bitrate(tmp_file, fs);
135 Tracks[index].KBtps >>= 3;
136 if (ret != 0 || Tracks[index].KBtps <= 0)
137 {
138 cdprintf("Error track %i: stat %i, rate %i", index, ret, Tracks[index].KBtps);
139 fclose(tmp_file);
140 continue;
141 }
bf098bc5 142
143 Tracks[index].F = tmp_file;
144
145 SCD_TOC_Tracks[index].Num = num_track;
146 SCD_TOC_Tracks[index].Type = 0; // AUDIO
147
148 LBA_to_MSF(Cur_LBA, &(SCD_TOC_Tracks[index].MSF));
149
bf098bc5 150 // MP3 File
151 Tracks[index].Type = TYPE_MP3;
bf098bc5 152 fs *= 75;
cb0316e4 153 fs /= Tracks[index].KBtps * 1000;
154 Tracks[index].Length = fs;
155 Cur_LBA += Tracks[index].Length;
156
157 cdprintf("Track %i: %s - %02d:%02d:%02d len=%i %s", index, tmp_name, SCD_TOC_Tracks[index].MSF.M,
158 SCD_TOC_Tracks[index].MSF.S, SCD_TOC_Tracks[index].MSF.F, fs,
159 SCD_TOC_Tracks[index].Type ? "DATA" : "AUDIO");
bf098bc5 160
161 num_track++;
162 break;
163 }
164 }
165 }
166
167 Pico_mcd->scd.TOC.Last_Track = num_track - 1;
168
169 index = num_track - Pico_mcd->scd.TOC.First_Track;
170 SCD_TOC_Tracks[index].Num = num_track;
171 SCD_TOC_Tracks[index].Type = 0;
172
173 LBA_to_MSF(Cur_LBA, &(SCD_TOC_Tracks[index].MSF));
174
175 cdprintf("End CD - %02d:%02d:%02d\n\n", SCD_TOC_Tracks[index].MSF.M,
176 SCD_TOC_Tracks[index].MSF.S, SCD_TOC_Tracks[index].MSF.F);
177
178 return 0;
179}
180
181
182void Unload_ISO(void)
183{
184 int i;
185
186 Track_Played = 99;
187
188 for(i = 0; i < 100; i++)
189 {
190 if (Tracks[i].F) fclose(Tracks[i].F);
191 Tracks[i].F = NULL;
cb0316e4 192 Tracks[i].Length = 0;
bf098bc5 193 Tracks[i].Type = 0;
194 }
195}
196
197
198int FILE_Read_One_LBA_CDC(void)
199{
200 int where_read;
201 static char cp_buf[2560];
202
203 if (Pico_mcd->s68k_regs[0x36] & 1) // DATA
204 {
205 if (Tracks[0].F == NULL) return -1;
206
207 if (Pico_mcd->scd.Cur_LBA < 0) where_read = 0;
cb0316e4 208 else if (Pico_mcd->scd.Cur_LBA >= Tracks[0].Length) where_read = Tracks[0].Length - 1;
bf098bc5 209 else where_read = Pico_mcd->scd.Cur_LBA;
210
211 if (Tracks[0].Type == TYPE_ISO) where_read <<= 11;
212 else where_read = (where_read * 2352 + 16);
213
214 fseek(Tracks[0].F, where_read, SEEK_SET);
215 fread(cp_buf, 1, 2048, Tracks[0].F);
216
c459aefd 217 cdprintf("Read file CDC 1 data sector :\n");
bf098bc5 218 }
219 else // AUDIO
220 {
221 // int rate, channel;
222
223 if (Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type == TYPE_MP3)
224 {
225 // TODO
226 // MP3_Update(cp_buf, &rate, &channel, 0);
227 // Write_CD_Audio((short *) cp_buf, rate, channel, 588);
228 }
229
c459aefd 230 cdprintf("Read file CDC 1 audio sector :\n");
bf098bc5 231 }
232
233 // Update CDC stuff
234
235 CDC_Update_Header();
236
237 if (Pico_mcd->s68k_regs[0x36] & 1) // DATA track
238 {
239 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
240 {
241 if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
242 {
243 // CAUTION : lookahead bit not implemented
244
245 Pico_mcd->scd.Cur_LBA++;
246
247 Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA
248 Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
249
250 memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048);
251 memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], &Pico_mcd->cdc.HEAD, 4);
252
253#ifdef DEBUG_CD
c459aefd 254 cdprintf("Read -> WA = %d Buffer[%d] =", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF);
255 cdprintf("Header 1 = %.2X %.2X %.2X %.2X", Pico_mcd->cdc.HEAD.B.B0,
bf098bc5 256 Pico_mcd->cdc.HEAD.B.B1, Pico_mcd->cdc.HEAD.B.B2, Pico_mcd->cdc.HEAD.B.B3);
257 cdprintf("Header 2 = %.2X %.2X %.2X %.2X --- %.2X %.2X\n\n",
258 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 0) & 0x3FFF],
259 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 1) & 0x3FFF],
260 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 2) & 0x3FFF],
261 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 3) & 0x3FFF],
262 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 4) & 0x3FFF],
263 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 5) & 0x3FFF]);
264#endif
265 }
266
267 }
268 }
269 else // music track
270 {
271 Pico_mcd->scd.Cur_LBA++;
272
273 Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA
274 Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
275
276 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
277 {
278 if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
279 {
280 // CAUTION : lookahead bit not implemented
281
282 memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cp_buf, 2352);
283 }
284 }
285 }
286
287 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
288 {
289 Pico_mcd->cdc.STAT.B.B0 = 0x80;
290
291 if (Pico_mcd->cdc.CTRL.B.B0 & 0x10) // determine form bit form sub header ?
292 {
293 Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x08;
294 }
295 else
296 {
297 Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x0C;
298 }
299
300 if (Pico_mcd->cdc.CTRL.B.B0 & 0x02) Pico_mcd->cdc.STAT.B.B3 = 0x20; // ECC done
301 else Pico_mcd->cdc.STAT.B.B3 = 0x00; // ECC not done
302
303 if (Pico_mcd->cdc.IFCTRL & 0x20)
304 {
305 if (Pico_mcd->s68k_regs[0x33] & (1<<5))
306 {
307 dprintf("cdc dec irq 5");
308 SekInterruptS68k(5);
309 }
310
311 Pico_mcd->cdc.IFSTAT &= ~0x20; // DEC interrupt happen
312 CDC_Decode_Reg_Read = 0; // Reset read after DEC int
313 }
314 }
315
316
317 return 0;
318}
319
320
321int FILE_Play_CD_LBA(void)
322{
323 int index = Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track;
324
c459aefd 325 cdprintf("Play FILE Comp");
bf098bc5 326
327 if (Tracks[index].F == NULL)
328 {
329 return 1;
330 }
331
332 if (Tracks[index].Type == TYPE_MP3)
333 {
cb0316e4 334 int pos1000 = 0;
bf098bc5 335 int Track_LBA_Pos = Pico_mcd->scd.Cur_LBA - Track_to_LBA(Pico_mcd->scd.Cur_Track);
336 if (Track_LBA_Pos < 0) Track_LBA_Pos = 0;
cb0316e4 337 if (Track_LBA_Pos)
338 pos1000 = Track_LBA_Pos * 1024 / Tracks[index].Length;
bf098bc5 339
cb0316e4 340 mp3_start_play(Tracks[index].F, pos1000);
bf098bc5 341 }
342 else
343 {
344 return 3;
345 }
346
347 return 0;
348}
349