5 #include "../PicoInt.h"
\r
7 #define cdprintf dprintf
\r
8 //#define cdprintf(x...)
\r
11 #define TRAY_OPEN 0x0500 // TRAY OPEN CDD status
\r
12 #define NOCD 0x0000 // CD removed CDD status
\r
13 #define STOPPED 0x0900 // STOPPED CDD status (happen after stop or close tray command)
\r
14 #define READY 0x0400 // READY CDD status (also used for seeking)
\r
15 #define FAST_FOW 0x0300 // FAST FORWARD track CDD status
\r
16 #define FAST_REV 0x10300 // FAST REVERSE track CDD status
\r
17 #define PLAYING 0x0100 // PLAYING audio track CDD status
\r
23 int CD_Audio_Buffer_L[8192];
\r
24 int CD_Audio_Buffer_R[8192];
\r
25 int CD_Audio_Buffer_Read_Pos = 0;
\r
26 int CD_Audio_Buffer_Write_Pos = 2000;
\r
27 int CD_Audio_Starting;
\r
30 static int CD_Present = 0;
\r
31 // int CD_Timer_Counter = 0; // TODO: check refs
\r
35 #define CHECK_TRAY_OPEN \
\r
36 if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) \
\r
38 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD; \
\r
40 Pico_mcd->cdd.Minute = 0; \
\r
41 Pico_mcd->cdd.Seconde = 0; \
\r
42 Pico_mcd->cdd.Frame = 0; \
\r
43 Pico_mcd->cdd.Ext = 0; \
\r
45 Pico_mcd->scd.CDD_Complete = 1; \
\r
51 #define CHECK_CD_PRESENT \
\r
54 Pico_mcd->scd.Status_CDD = NOCD; \
\r
55 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD; \
\r
57 Pico_mcd->cdd.Minute = 0; \
\r
58 Pico_mcd->cdd.Seconde = 0; \
\r
59 Pico_mcd->cdd.Frame = 0; \
\r
60 Pico_mcd->cdd.Ext = 0; \
\r
62 Pico_mcd->scd.CDD_Complete = 1; \
\r
69 static void MSB2DWORD(unsigned int *d, unsigned char *b)
\r
71 unsigned int retVal;
\r
73 retVal = (unsigned int )b[0];
\r
74 retVal = (retVal<<8) + (unsigned int )b[1];
\r
75 retVal = (retVal<<8) + (unsigned int )b[2];
\r
76 retVal = (retVal<<8) + (unsigned int )b[3];
\r
82 static int MSF_to_LBA(_msf *MSF)
\r
84 return (MSF->M * 60 * 75) + (MSF->S * 75) + MSF->F - 150;
\r
88 void LBA_to_MSF(int lba, _msf *MSF)
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90 if (lba < -150) lba = 0;
\r
92 MSF->M = lba / (60 * 75);
\r
93 MSF->S = (lba / 75) % 60;
\r
98 static unsigned int MSF_to_Track(_msf *MSF)
\r
102 Start = (MSF->M << 16) + (MSF->S << 8) + MSF->F;
\r
104 for(i = 1; i <= (Pico_mcd->TOC.Last_Track + 1); i++)
\r
106 Cur = Pico_mcd->TOC.Tracks[i - 1].MSF.M << 16;
\r
107 Cur += Pico_mcd->TOC.Tracks[i - 1].MSF.S << 8;
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108 Cur += Pico_mcd->TOC.Tracks[i - 1].MSF.F;
\r
110 if (Cur > Start) break;
\r
115 if (i > Pico_mcd->TOC.Last_Track) return 100;
\r
116 else if (i < 1) i = 1;
\r
118 return (unsigned) i;
\r
122 static unsigned int LBA_to_Track(int lba)
\r
126 LBA_to_MSF(lba, &MSF);
\r
127 return MSF_to_Track(&MSF);
\r
131 static void Track_to_MSF(int track, _msf *MSF)
\r
133 if (track < 1) track = 1;
\r
134 else if (track > Pico_mcd->TOC.Last_Track) track = Pico_mcd->TOC.Last_Track;
\r
136 MSF->M = Pico_mcd->TOC.Tracks[track - 1].MSF.M;
\r
137 MSF->S = Pico_mcd->TOC.Tracks[track - 1].MSF.S;
\r
138 MSF->F = Pico_mcd->TOC.Tracks[track - 1].MSF.F;
\r
142 int Track_to_LBA(int track)
\r
146 Track_to_MSF(track, &MSF);
\r
147 return MSF_to_LBA(&MSF);
\r
151 void Check_CD_Command(void)
\r
153 cdprintf("CHECK CD COMMAND");
\r
156 if (Pico_mcd->scd.Status_CDC & 1) // CDC is reading data ...
\r
158 cdprintf("Got a read command");
\r
161 if (Pico_mcd->scd.Cur_Track == 1)
\r
162 Pico_mcd->s68k_regs[0x36] |= 0x01;
\r
163 else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO
\r
165 if (Pico_mcd->scd.File_Add_Delay == 0)
\r
167 FILE_Read_One_LBA_CDC();
\r
169 else Pico_mcd->scd.File_Add_Delay--;
\r
173 if (Pico_mcd->scd.CDD_Complete)
\r
175 Pico_mcd->scd.CDD_Complete = 0;
\r
177 CDD_Export_Status();
\r
180 if (Pico_mcd->scd.Status_CDD == FAST_FOW)
\r
182 Pico_mcd->scd.Cur_LBA += 10;
\r
183 CDC_Update_Header();
\r
186 else if (Pico_mcd->scd.Status_CDD == FAST_REV)
\r
188 Pico_mcd->scd.Cur_LBA -= 10;
\r
189 if (Pico_mcd->scd.Cur_LBA < -150) Pico_mcd->scd.Cur_LBA = -150;
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190 CDC_Update_Header();
\r
195 int Init_CD_Driver(void)
\r
201 void End_CD_Driver(void)
\r
207 void Reset_CD(void)
\r
209 Pico_mcd->scd.Cur_Track = 0;
\r
210 Pico_mcd->scd.Cur_LBA = -150;
\r
211 Pico_mcd->scd.Status_CDD = READY;
\r
212 Pico_mcd->scd.CDD_Complete = 0;
\r
216 int Insert_CD(char *iso_name, int is_bin)
\r
220 // memset(CD_Audio_Buffer_L, 0, 4096 * 4);
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221 // memset(CD_Audio_Buffer_R, 0, 4096 * 4);
\r
225 if (iso_name != NULL)
\r
227 ret = Load_ISO(iso_name, is_bin);
\r
243 void Change_CD(void)
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245 if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) Close_Tray_CDD_cC();
\r
246 else Open_Tray_CDD_cD();
\r
250 int Get_Status_CDD_c0(void)
\r
252 cdprintf("Status command : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);
\r
254 // Clear immediat status
\r
255 if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0200)
\r
256 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);
\r
257 else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0700)
\r
258 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);
\r
259 else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0E00)
\r
260 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);
\r
262 Pico_mcd->scd.CDD_Complete = 1;
\r
268 int Stop_CDD_c1(void)
\r
272 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
274 if (CD_Present) Pico_mcd->scd.Status_CDD = STOPPED;
\r
275 else Pico_mcd->scd.Status_CDD = NOCD;
\r
276 Pico_mcd->cdd.Status = 0x0000;
\r
278 Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped
\r
280 Pico_mcd->cdd.Minute = 0;
\r
281 Pico_mcd->cdd.Seconde = 0;
\r
282 Pico_mcd->cdd.Frame = 0;
\r
283 Pico_mcd->cdd.Ext = 0;
\r
285 Pico_mcd->scd.CDD_Complete = 1;
\r
291 int Get_Pos_CDD_c20(void)
\r
295 cdprintf("command 200 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);
\r
299 Pico_mcd->cdd.Status &= 0xFF;
\r
302 Pico_mcd->scd.Status_CDD = NOCD;
\r
303 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
305 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
306 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
308 cdprintf("Status CDD = %.4X Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);
\r
310 LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);
\r
312 Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);
\r
313 Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);
\r
314 Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);
\r
315 Pico_mcd->cdd.Ext = 0;
\r
317 Pico_mcd->scd.CDD_Complete = 1;
\r
323 int Get_Track_Pos_CDD_c21(void)
\r
328 cdprintf("command 201 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);
\r
332 Pico_mcd->cdd.Status &= 0xFF;
\r
335 Pico_mcd->scd.Status_CDD = NOCD;
\r
336 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
338 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
339 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
341 elapsed_time = Pico_mcd->scd.Cur_LBA - Track_to_LBA(LBA_to_Track(Pico_mcd->scd.Cur_LBA));
\r
342 LBA_to_MSF(elapsed_time - 150, &MSF);
\r
344 cdprintf(" elapsed = %d", elapsed_time);
\r
346 Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);
\r
347 Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);
\r
348 Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);
\r
349 Pico_mcd->cdd.Ext = 0;
\r
351 Pico_mcd->scd.CDD_Complete = 1;
\r
357 int Get_Current_Track_CDD_c22(void)
\r
359 cdprintf("Status CDD = %.4X Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);
\r
363 Pico_mcd->cdd.Status &= 0xFF;
\r
366 Pico_mcd->scd.Status_CDD = NOCD;
\r
367 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
369 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
370 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
372 Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);
\r
374 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;
\r
375 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
376 Pico_mcd->cdd.Seconde = 0;
\r
377 Pico_mcd->cdd.Frame = 0;
\r
378 Pico_mcd->cdd.Ext = 0;
\r
380 Pico_mcd->scd.CDD_Complete = 1;
\r
386 int Get_Total_Lenght_CDD_c23(void)
\r
390 Pico_mcd->cdd.Status &= 0xFF;
\r
393 Pico_mcd->scd.Status_CDD = NOCD;
\r
394 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
396 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
397 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
399 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->TOC.Tracks[Pico_mcd->TOC.Last_Track].MSF.M);
\r
400 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->TOC.Tracks[Pico_mcd->TOC.Last_Track].MSF.S);
\r
401 Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->TOC.Tracks[Pico_mcd->TOC.Last_Track].MSF.F);
\r
402 Pico_mcd->cdd.Ext = 0;
\r
404 Pico_mcd->scd.CDD_Complete = 1;
\r
410 int Get_First_Last_Track_CDD_c24(void)
\r
414 Pico_mcd->cdd.Status &= 0xFF;
\r
417 Pico_mcd->scd.Status_CDD = NOCD;
\r
419 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
420 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
422 Pico_mcd->cdd.Minute = INT_TO_BCDW(1);
\r
423 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->TOC.Last_Track);
\r
424 Pico_mcd->cdd.Frame = 0;
\r
425 Pico_mcd->cdd.Ext = 0;
\r
427 Pico_mcd->scd.CDD_Complete = 1;
\r
433 int Get_Track_Adr_CDD_c25(void)
\r
439 // track number in TC4 & TC5
\r
441 track_number = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);
\r
443 Pico_mcd->cdd.Status &= 0xFF;
\r
446 Pico_mcd->scd.Status_CDD = NOCD;
\r
447 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
449 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
450 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
\r
452 if (track_number > Pico_mcd->TOC.Last_Track) track_number = Pico_mcd->TOC.Last_Track;
\r
453 else if (track_number < 1) track_number = 1;
\r
455 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->TOC.Tracks[track_number - 1].MSF.M);
\r
456 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->TOC.Tracks[track_number - 1].MSF.S);
\r
457 Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->TOC.Tracks[track_number - 1].MSF.F);
\r
458 Pico_mcd->cdd.Ext = track_number % 10;
\r
460 if (track_number == 1) Pico_mcd->cdd.Frame |= 0x0800; // data track
\r
462 Pico_mcd->scd.CDD_Complete = 1;
\r
467 int Play_CDD_c3(void)
\r
470 int delay, new_lba;
\r
475 // MSF of the track to play in TC buffer
\r
477 MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);
\r
478 MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);
\r
479 MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);
\r
481 Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);
\r
483 new_lba = MSF_to_LBA(&MSF);
\r
484 delay = new_lba - Pico_mcd->scd.Cur_LBA;
\r
485 if (delay < 0) delay = -delay;
\r
488 Pico_mcd->scd.Cur_LBA = new_lba;
\r
489 CDC_Update_Header();
\r
491 cdprintf("Read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);
\r
493 if (Pico_mcd->scd.Status_CDD != PLAYING) delay += 20;
\r
495 Pico_mcd->scd.Status_CDD = PLAYING;
\r
496 Pico_mcd->cdd.Status = 0x0102;
\r
497 // Pico_mcd->cdd.Status = COMM_OK;
\r
499 if (Pico_mcd->scd.File_Add_Delay == 0) Pico_mcd->scd.File_Add_Delay = delay;
\r
501 if (Pico_mcd->scd.Cur_Track == 1)
\r
503 Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA
\r
507 Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO
\r
508 //CD_Audio_Starting = 1;
\r
509 FILE_Play_CD_LBA();
\r
512 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;
\r
513 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
514 Pico_mcd->cdd.Seconde = 0;
\r
515 Pico_mcd->cdd.Frame = 0;
\r
516 Pico_mcd->cdd.Ext = 0;
\r
518 Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC
\r
520 Pico_mcd->scd.CDD_Complete = 1;
\r
525 int Seek_CDD_c4(void)
\r
532 // MSF to seek in TC buffer
\r
534 MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);
\r
535 MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);
\r
536 MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);
\r
538 Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);
\r
539 Pico_mcd->scd.Cur_LBA = MSF_to_LBA(&MSF);
\r
540 CDC_Update_Header();
\r
542 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
544 Pico_mcd->scd.Status_CDD = READY;
\r
545 Pico_mcd->cdd.Status = 0x0200;
\r
548 if (Pico_mcd->scd.Cur_Track == 1)
\r
549 Pico_mcd->s68k_regs[0x36] |= 0x01;
\r
550 else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO
\r
552 Pico_mcd->cdd.Minute = 0;
\r
553 Pico_mcd->cdd.Seconde = 0;
\r
554 Pico_mcd->cdd.Frame = 0;
\r
555 Pico_mcd->cdd.Ext = 0;
\r
557 Pico_mcd->scd.CDD_Complete = 1;
\r
563 int Pause_CDD_c6(void)
\r
568 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read to start a new one if raw data
\r
570 Pico_mcd->scd.Status_CDD = READY;
\r
571 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;
\r
573 Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped
\r
575 Pico_mcd->cdd.Minute = 0;
\r
576 Pico_mcd->cdd.Seconde = 0;
\r
577 Pico_mcd->cdd.Frame = 0;
\r
578 Pico_mcd->cdd.Ext = 0;
\r
580 Pico_mcd->scd.CDD_Complete = 1;
\r
586 int Resume_CDD_c7(void)
\r
591 Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);
\r
596 LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);
\r
597 cdprintf("Resume read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);
\r
601 Pico_mcd->scd.Status_CDD = PLAYING;
\r
602 Pico_mcd->cdd.Status = 0x0102;
\r
604 if (Pico_mcd->scd.Cur_Track == 1)
\r
606 Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA
\r
610 Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO
\r
611 //CD_Audio_Starting = 1;
\r
612 FILE_Play_CD_LBA();
\r
615 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;
\r
616 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
617 Pico_mcd->cdd.Seconde = 0;
\r
618 Pico_mcd->cdd.Frame = 0;
\r
619 Pico_mcd->cdd.Ext = 0;
\r
621 Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC
\r
623 Pico_mcd->scd.CDD_Complete = 1;
\r
628 int Fast_Foward_CDD_c8(void)
\r
633 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
635 Pico_mcd->scd.Status_CDD = FAST_FOW;
\r
636 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;
\r
638 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
639 Pico_mcd->cdd.Seconde = 0;
\r
640 Pico_mcd->cdd.Frame = 0;
\r
641 Pico_mcd->cdd.Ext = 0;
\r
643 Pico_mcd->scd.CDD_Complete = 1;
\r
649 int Fast_Rewind_CDD_c9(void)
\r
654 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
656 Pico_mcd->scd.Status_CDD = FAST_REV;
\r
657 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;
\r
659 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
660 Pico_mcd->cdd.Seconde = 0;
\r
661 Pico_mcd->cdd.Frame = 0;
\r
662 Pico_mcd->cdd.Ext = 0;
\r
664 Pico_mcd->scd.CDD_Complete = 1;
\r
670 int Close_Tray_CDD_cC(void)
\r
672 //Clear_Sound_Buffer();
\r
674 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
678 char new_iso[1024];
\r
680 memset(new_iso, 0, 1024);
\r
682 while (!Change_File_L(new_iso, Rom_Dir, "Load SegaCD image file", "SegaCD image file\0*.bin;*.iso;*.raw\0All files\0*.*\0\0", ""));
\r
683 Reload_SegaCD(new_iso);
\r
689 Pico_mcd->scd.Status_CDD = STOPPED;
\r
690 Pico_mcd->cdd.Status = 0x0000;
\r
692 Pico_mcd->cdd.Minute = 0;
\r
693 Pico_mcd->cdd.Seconde = 0;
\r
694 Pico_mcd->cdd.Frame = 0;
\r
695 Pico_mcd->cdd.Ext = 0;
\r
698 Pico_mcd->scd.CDD_Complete = 1;
\r
704 int Open_Tray_CDD_cD(void)
\r
708 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
713 Pico_mcd->scd.Status_CDD = TRAY_OPEN;
\r
714 Pico_mcd->cdd.Status = 0x0E00;
\r
716 Pico_mcd->cdd.Minute = 0;
\r
717 Pico_mcd->cdd.Seconde = 0;
\r
718 Pico_mcd->cdd.Frame = 0;
\r
719 Pico_mcd->cdd.Ext = 0;
\r
721 Pico_mcd->scd.CDD_Complete = 1;
\r
732 Pico_mcd->scd.Status_CDC &= ~1;
\r
734 Pico_mcd->scd.Status_CDD = READY;
\r
735 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;
\r
737 Pico_mcd->cdd.Minute = 0;
\r
738 Pico_mcd->cdd.Seconde = INT_TO_BCDW(1);
\r
739 Pico_mcd->cdd.Frame = INT_TO_BCDW(1);
\r
740 Pico_mcd->cdd.Ext = 0;
\r
742 Pico_mcd->scd.CDD_Complete = 1;
\r
750 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;
\r
752 Pico_mcd->cdd.Minute = 0;
\r
753 Pico_mcd->cdd.Seconde = 0;
\r
754 Pico_mcd->cdd.Frame = 0;
\r
755 Pico_mcd->cdd.Ext = 0;
\r
763 /***************************
\r
764 * Others CD functions *
\r
765 **************************/
\r
768 // do we need them?
\r
770 void Write_CD_Audio(short *Buf, int rate, int channel, int lenght)
\r
772 unsigned int lenght_src, lenght_dst;
\r
773 unsigned int pos_src, pas_src;
\r
775 if (rate == 0) return;
\r
776 if (Sound_Rate == 0) return;
\r
778 if (CD_Audio_Starting)
\r
780 CD_Audio_Starting = 0;
\r
781 memset(CD_Audio_Buffer_L, 0, 4096 * 4);
\r
782 memset(CD_Audio_Buffer_R, 0, 4096 * 4);
\r
783 CD_Audio_Buffer_Write_Pos = (CD_Audio_Buffer_Read_Pos + 2000) & 0xFFF;
\r
786 lenght_src = rate / 75; // 75th of a second
\r
787 lenght_dst = Sound_Rate / 75; // 75th of a second
\r
789 pas_src = (lenght_src << 16) / lenght_dst;
\r
793 fprintf(debug_SCD_file, "\n********* Write Pos = %d ", CD_Audio_Buffer_Write_Pos);
\r
800 mov edi, CD_Audio_Buffer_Write_Pos
\r
803 mov ecx, lenght_dst
\r
807 jmp short loop_stereo
\r
812 movsx eax, word ptr [ebx + esi * 4]
\r
813 mov CD_Audio_Buffer_L[edi * 4], eax
\r
814 movsx eax, word ptr [ebx + esi * 4 + 2]
\r
815 mov CD_Audio_Buffer_R[edi * 4], eax
\r
816 mov esi, dword ptr pos_src
\r
820 mov dword ptr pos_src, esi
\r
823 jns short loop_stereo
\r
825 mov CD_Audio_Buffer_Write_Pos, edi
\r
832 mov edi, CD_Audio_Buffer_Write_Pos
\r
835 mov ecx, lenght_dst
\r
839 jmp short loop_mono
\r
844 movsx eax, word ptr [ebx + esi * 2]
\r
845 mov CD_Audio_Buffer_L[edi * 4], eax
\r
846 mov CD_Audio_Buffer_R[edi * 4], eax
\r
847 mov esi, dword ptr pos_src
\r
851 mov dword ptr pos_src, esi
\r
854 jns short loop_mono
\r
856 mov CD_Audio_Buffer_Write_Pos, edi
\r
861 fprintf(debug_SCD_file, "Write Pos 2 = %d\n\n", CD_Audio_Buffer_Write_Pos);
\r
866 void Update_CD_Audio(int **buf, int lenght)
\r
868 int *Buf_L, *Buf_R;
\r
874 if (Pico_mcd->s68k_regs[0x36] & 0x01) return;
\r
875 if (!(Pico_mcd->scd.Status_CDC & 1)) return;
\r
876 if (CD_Audio_Starting) return;
\r
879 fprintf(debug_SCD_file, "\n********* Read Pos Normal = %d ", CD_Audio_Buffer_Read_Pos);
\r
882 if (CD_Audio_Buffer_Write_Pos < CD_Audio_Buffer_Read_Pos)
\r
884 diff = CD_Audio_Buffer_Write_Pos + (4096) - CD_Audio_Buffer_Read_Pos;
\r
888 diff = CD_Audio_Buffer_Write_Pos - CD_Audio_Buffer_Read_Pos;
\r
891 if (diff < 500) CD_Audio_Buffer_Read_Pos -= 2000;
\r
892 else if (diff > 3500) CD_Audio_Buffer_Read_Pos += 2000;
\r
895 else fprintf(debug_SCD_file, " pas de modifs ");
\r
898 CD_Audio_Buffer_Read_Pos &= 0xFFF;
\r
901 fprintf(debug_SCD_file, "Read Pos = %d ", CD_Audio_Buffer_Read_Pos);
\r
909 mov esi, CD_Audio_Buffer_Read_Pos
\r
914 mov eax, CD_Audio_Buffer_L[esi * 4]
\r
923 mov esi, CD_Audio_Buffer_Read_Pos
\r
928 mov eax, CD_Audio_Buffer_R[esi * 4]
\r
936 mov CD_Audio_Buffer_Read_Pos, esi
\r
941 CD_Audio_Buffer_Read_Pos += lenght;
\r
942 CD_Audio_Buffer_Read_Pos &= 0xFFF;
\r
946 fprintf(debug_SCD_file, "Read Pos 2 = %d\n\n", CD_Audio_Buffer_Read_Pos);
\r