amalgamation
[picodrive.git] / Pico / cd / cd_file.c
index 1f63474..9762361 100644 (file)
-/*
-#include <stdio.h>
-#include <string.h>
-#if defined(__WIN__)
-#include <windows.h>
-#else
-#include "port.h"
-#endif
-#include "cd_sys.h"
-#include "cd_file.h"
-#include "lc89510.h"
-#include "cdda_mp3.h"
-#include "star_68k.h"
-#include "rom.h"
-#include "mem_s68k.h"
-*/
+/***********************************************************
+ *                                                         *
+ * This source was taken from the Gens project             *
+ * Written by Stéphane Dallongeville                       *
+ * Copyright (c) 2002 by Stéphane Dallongeville            *
+ * Modified/adapted for PicoDrive by notaz, 2007           *
+ *                                                         *
+ ***********************************************************/
 
 #include <sys/stat.h>
-#include "cd_file.h"
 
 #include "../PicoInt.h"
+#include "cd_file.h"
 
-#define cdprintf printf
+#define cdprintf dprintf
 //#define cdprintf(x...)
-
-struct _file_track Tracks[100];
-char Track_Played;
+#define DEBUG_CD
 
 
-int FILE_Init(void)
+PICO_INTERNAL int Load_ISO(const char *iso_name, int is_bin)
 {
-//     MP3_Init(); // TODO
-       Unload_ISO();
-
-       return 0;
-}
-
-
-void FILE_End(void)
-{
-       Unload_ISO();
-}
-
-
-int Load_ISO(const char *iso_name, int is_bin)
-{
-       struct stat file_stat;
-       int i, j, num_track, Cur_LBA, index, ret;
-       _scd_track *SCD_TOC_Tracks = Pico_mcd->scd.TOC.Tracks;
-       FILE *tmp_file;
+       int i, j, num_track, Cur_LBA, index, ret, iso_name_len;
+       _scd_track *Tracks = Pico_mcd->TOC.Tracks;
        char tmp_name[1024], tmp_ext[10];
+       pm_file *pmf;
        static char *exts[] = {
                "%02d.mp3", " %02d.mp3", "-%02d.mp3", "_%02d.mp3", " - %02d.mp3",
                "%d.mp3", " %d.mp3", "-%d.mp3", "_%d.mp3", " - %d.mp3",
+               "%02d.MP3", " %02d.MP3", "-%02d.MP3", "_%02d.MP3", " - %02d.MP3",
                /* "%02d.wav", " %02d.wav", "-%02d.wav", "_%02d.wav", " - %02d.wav",
                "%d.wav", " %d.wav", "-%d.wav", "_%d.wav", " - %2d.wav" */
        };
 
        Unload_ISO();
 
-       Tracks[0].Type = is_bin ? TYPE_BIN : TYPE_ISO;
-
-       ret = stat(iso_name, &file_stat);
-       if (ret != 0) return -1;
-
-       Tracks[0].Lenght = file_stat.st_size;
+       Tracks[0].ftype = is_bin ? TYPE_BIN : TYPE_ISO;
 
-       if (Tracks[0].Type == TYPE_ISO) Tracks[0].Lenght >>= 11;        // size in sectors
-       else Tracks[0].Lenght /= 2352;                                  // size in sectors
-
-
-       Tracks[0].F = fopen(iso_name, "rb");
+       Tracks[0].F = pmf = pm_open(iso_name);
        if (Tracks[0].F == NULL)
        {
-               Tracks[0].Type = 0;
-               Tracks[0].Lenght = 0;
+               Tracks[0].ftype = 0;
+               Tracks[0].Length = 0;
                return -1;
        }
 
-       if (Tracks[0].Type == TYPE_ISO) fseek(Tracks[0].F, 0x100, SEEK_SET);
-       else fseek(Tracks[0].F, 0x110, SEEK_SET);
-
-       // fread(buf, 1, 0x200, Tracks[0].F);
-       fseek(Tracks[0].F, 0, SEEK_SET);
-
-       Pico_mcd->scd.TOC.First_Track = 1;
-
-       SCD_TOC_Tracks[0].Num = 1;
-       SCD_TOC_Tracks[0].Type = 1;                             // DATA
+       if (Tracks[0].ftype == TYPE_ISO)
+               Tracks[0].Length = pmf->size >>= 11;    // size in sectors
+       else    Tracks[0].Length = pmf->size /= 2352;
 
-       SCD_TOC_Tracks[0].MSF.M = 0;
-       SCD_TOC_Tracks[0].MSF.S = 2;
-       SCD_TOC_Tracks[0].MSF.F = 0;
+       Tracks[0].MSF.M = 0; // minutes
+       Tracks[0].MSF.S = 2; // seconds
+       Tracks[0].MSF.F = 0; // frames
 
-       cdprintf("\nTrack 0 - %02d:%02d:%02d %s\n", SCD_TOC_Tracks[0].MSF.M, SCD_TOC_Tracks[0].MSF.S, SCD_TOC_Tracks[0].MSF.F,
-               SCD_TOC_Tracks[0].Type ? "DATA" : "AUDIO");
+       cdprintf("Track 0 - %02d:%02d:%02d DATA", Tracks[0].MSF.M, Tracks[0].MSF.S, Tracks[0].MSF.F);
 
-       Cur_LBA = Tracks[0].Lenght;                             // Size in sectors
+       Cur_LBA = Tracks[0].Length;                             // Size in sectors
 
-       strcpy(tmp_name, iso_name);
+       iso_name_len = strlen(iso_name);
 
-       for(num_track = 2, i = 0; i < 100; i++)
+       for (num_track = 2, i = 0; i < 100; i++)
        {
-               if (sizeof(exts)/sizeof(char *) != 10) { printf("eee"); exit(1); }
-
                for(j = 0; j < sizeof(exts)/sizeof(char *); j++)
                {
-                       tmp_name[strlen(iso_name) - 4] = 0;
+                       int ext_len;
+                       FILE *tmp_file;
                        sprintf(tmp_ext, exts[j], i);
+                       ext_len = strlen(tmp_ext);
+
+                       memcpy(tmp_name, iso_name, iso_name_len + 1);
+                       tmp_name[iso_name_len - 4] = 0;
                        strcat(tmp_name, tmp_ext);
 
                        tmp_file = fopen(tmp_name, "rb");
+                       if (!tmp_file && i > 1 && iso_name_len > ext_len) {
+                               tmp_name[iso_name_len - ext_len] = 0;
+                               strcat(tmp_name, tmp_ext);
+                               tmp_file = fopen(tmp_name, "rb");
+                       }
 
                        if (tmp_file)
                        {
-                               float fs;
-                               index = num_track - Pico_mcd->scd.TOC.First_Track;
-
-                               stat(tmp_name, &file_stat);
-
-                               fs = (float) file_stat.st_size;                         // used to calculate lenght
+                               int fs;
+                               struct stat file_stat;
+                               index = num_track - 1;
+
+                               ret = stat(tmp_name, &file_stat);
+                               fs = file_stat.st_size;                         // used to calculate lenght
+
+                               Tracks[index].KBtps = (short) mp3_get_bitrate(tmp_file, fs);
+                               Tracks[index].KBtps >>= 3;
+                               if (ret != 0 || Tracks[index].KBtps <= 0)
+                               {
+                                       cdprintf("Error track %i: stat %i, rate %i", index, ret, Tracks[index].KBtps);
+                                       fclose(tmp_file);
+                                       continue;
+                               }
 
                                Tracks[index].F = tmp_file;
 
-                               SCD_TOC_Tracks[index].Num = num_track;
-                               SCD_TOC_Tracks[index].Type = 0;                         // AUDIO
-
-                               LBA_to_MSF(Cur_LBA, &(SCD_TOC_Tracks[index].MSF));
-
-                               cdprintf("\nTrack %i - %02d:%02d:%02d %s\n", index, SCD_TOC_Tracks[index].MSF.M,
-                                       SCD_TOC_Tracks[index].MSF.S, SCD_TOC_Tracks[index].MSF.F,
-                                       SCD_TOC_Tracks[index].Type ? "DATA" : "AUDIO");
+                               LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
 
                                // MP3 File
-                               Tracks[index].Type = TYPE_MP3;
-                               fs /= (128>>3); // (float) (MP3_Get_Bitrate(Tracks[num_track - 1].F) >> 3);
+                               Tracks[index].ftype = TYPE_MP3;
                                fs *= 75;
-                               Tracks[index].Lenght = (int) fs;
-                               Cur_LBA += Tracks[index].Lenght;
+                               fs /= Tracks[index].KBtps * 1000;
+                               Tracks[index].Length = fs;
+                               Cur_LBA += Tracks[index].Length;
+
+                               cdprintf("Track %i: %s - %02d:%02d:%02d len=%i AUDIO", index, tmp_name, Tracks[index].MSF.M,
+                                       Tracks[index].MSF.S, Tracks[index].MSF.F, fs);
 
                                num_track++;
                                break;
@@ -144,70 +115,61 @@ int Load_ISO(const char *iso_name, int is_bin)
                }
        }
 
-       Pico_mcd->scd.TOC.Last_Track = num_track - 1;
+       Pico_mcd->TOC.Last_Track = num_track - 1;
 
-       index = num_track - Pico_mcd->scd.TOC.First_Track;
-       SCD_TOC_Tracks[index].Num = num_track;
-       SCD_TOC_Tracks[index].Type = 0;
+       index = num_track - 1;
 
-       LBA_to_MSF(Cur_LBA, &(SCD_TOC_Tracks[index].MSF));
+       LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
 
-       cdprintf("End CD - %02d:%02d:%02d\n\n", SCD_TOC_Tracks[index].MSF.M,
-               SCD_TOC_Tracks[index].MSF.S, SCD_TOC_Tracks[index].MSF.F);
+       cdprintf("End CD - %02d:%02d:%02d\n\n", Tracks[index].MSF.M,
+               Tracks[index].MSF.S, Tracks[index].MSF.F);
 
        return 0;
 }
 
 
-void Unload_ISO(void)
+PICO_INTERNAL void Unload_ISO(void)
 {
        int i;
 
-       Track_Played = 99;
+       if (Pico_mcd == NULL) return;
 
-       for(i = 0; i < 100; i++)
+       if (Pico_mcd->TOC.Tracks[0].F) pm_close(Pico_mcd->TOC.Tracks[0].F);
+
+       for(i = 1; i < 100; i++)
        {
-               if (Tracks[i].F) fclose(Tracks[i].F);
-               Tracks[i].F = NULL;
-               Tracks[i].Lenght = 0;
-               Tracks[i].Type = 0;
+               if (Pico_mcd->TOC.Tracks[i].F) fclose(Pico_mcd->TOC.Tracks[i].F);
        }
+       memset(Pico_mcd->TOC.Tracks, 0, sizeof(Pico_mcd->TOC.Tracks));
 }
 
 
-int FILE_Read_One_LBA_CDC(void)
+PICO_INTERNAL int FILE_Read_One_LBA_CDC(void)
 {
-       int where_read;
-       static char cp_buf[2560];
+//     static char cp_buf[2560];
 
        if (Pico_mcd->s68k_regs[0x36] & 1)                                      // DATA
        {
-               if (Tracks[0].F == NULL) return -1;
-
-               if (Pico_mcd->scd.Cur_LBA < 0) where_read = 0;
-               else if (Pico_mcd->scd.Cur_LBA >= Tracks[0].Lenght) where_read = Tracks[0].Lenght - 1;
-               else where_read = Pico_mcd->scd.Cur_LBA;
+               if (Pico_mcd->TOC.Tracks[0].F == NULL) return -1;
 
-               if (Tracks[0].Type == TYPE_ISO) where_read <<= 11;
-               else where_read = (where_read * 2352 + 16);
+               // moved below..
+               //fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
+               //fread(cp_buf, 1, 2048, Pico_mcd->TOC.Tracks[0].F);
 
-               fseek(Tracks[0].F, where_read, SEEK_SET);
-               fread(cp_buf, 1, 2048, Tracks[0].F);
-
-               cdprintf("\n\nRead file CDC 1 data sector :\n");
+               cdprintf("Read file CDC 1 data sector :\n");
        }
        else                                                                    // AUDIO
        {
                // int rate, channel;
 
-               if (Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type == TYPE_MP3)
+               // if (Pico_mcd->TOC.Tracks[Pico_mcd->scd.Cur_Track - 1].ftype == TYPE_MP3)
                {
                        // TODO
                        // MP3_Update(cp_buf, &rate, &channel, 0);
                        // Write_CD_Audio((short *) cp_buf, rate, channel, 588);
                }
 
-               cdprintf("\n\nRead file CDC 1 audio sector :\n");
+               cdprintf("Read file CDC 1 audio sector :\n");
        }
 
        // Update CDC stuff
@@ -220,19 +182,31 @@ int FILE_Read_One_LBA_CDC(void)
                {
                        if (Pico_mcd->cdc.CTRL.B.B0 & 0x04)     // WRRQ : this bit enable write to buffer
                        {
+                               int where_read = 0;
+
                                // CAUTION : lookahead bit not implemented
 
+                               if (Pico_mcd->scd.Cur_LBA < 0)
+                                       where_read = 0;
+                               else if (Pico_mcd->scd.Cur_LBA >= Pico_mcd->TOC.Tracks[0].Length)
+                                       where_read = Pico_mcd->TOC.Tracks[0].Length - 1;
+                               else where_read = Pico_mcd->scd.Cur_LBA;
+
                                Pico_mcd->scd.Cur_LBA++;
 
                                Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF;              // add one sector to WA
                                Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
 
-                               memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048);
-                               memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], &Pico_mcd->cdc.HEAD, 4);
+                               *(unsigned int *)(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N) = Pico_mcd->cdc.HEAD.N;
+                               //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048);
+
+                               //pm_seek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
+                               //pm_read(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, 2048, Pico_mcd->TOC.Tracks[0].F);
+                               PicoCDBufferRead(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, where_read);
 
 #ifdef DEBUG_CD
-                               cdprintf("\nRead -> WA = %d  Buffer[%d] =\n", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF);
-                               cdprintf("Header 1 = %.2X %.2X %.2X %.2X\n", Pico_mcd->cdc.HEAD.B.B0,
+                               cdprintf("Read -> WA = %d  Buffer[%d] =", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF);
+                               cdprintf("Header 1 = %.2X %.2X %.2X %.2X", Pico_mcd->cdc.HEAD.B.B0,
                                        Pico_mcd->cdc.HEAD.B.B1, Pico_mcd->cdc.HEAD.B.B2, Pico_mcd->cdc.HEAD.B.B3);
                                cdprintf("Header 2 = %.2X %.2X %.2X %.2X --- %.2X %.2X\n\n",
                                        Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 0) & 0x3FFF],
@@ -259,7 +233,7 @@ int FILE_Read_One_LBA_CDC(void)
                        {
                                // CAUTION : lookahead bit not implemented
 
-                               memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cp_buf, 2352);
+                               //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cp_buf, 2352);
                        }
                }
        }
@@ -288,8 +262,8 @@ int FILE_Read_One_LBA_CDC(void)
                                SekInterruptS68k(5);
                        }
 
-                       Pico_mcd->cdc.IFSTAT &= ~0x20;  // DEC interrupt happen
-                       CDC_Decode_Reg_Read = 0;        // Reset read after DEC int
+                       Pico_mcd->cdc.IFSTAT &= ~0x20;          // DEC interrupt happen
+                       Pico_mcd->cdc.Decode_Reg_Read = 0;      // Reset read after DEC int
                }
        }
 
@@ -298,23 +272,27 @@ int FILE_Read_One_LBA_CDC(void)
 }
 
 
-int FILE_Play_CD_LBA(void)
+PICO_INTERNAL int FILE_Play_CD_LBA(void)
 {
-       int index = Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track;
+       int index = Pico_mcd->scd.Cur_Track - 1;
+       Pico_mcd->m.audio_track = index;
 
-       cdprintf("Play FILE Comp\n");
+       cdprintf("Play track #%i", Pico_mcd->scd.Cur_Track);
 
-       if (Tracks[index].F == NULL)
+       if (Pico_mcd->TOC.Tracks[index].F == NULL)
        {
                return 1;
        }
 
-       if (Tracks[index].Type == TYPE_MP3)
+       if (Pico_mcd->TOC.Tracks[index].ftype == TYPE_MP3)
        {
+               int pos1024 = 0;
                int Track_LBA_Pos = Pico_mcd->scd.Cur_LBA - Track_to_LBA(Pico_mcd->scd.Cur_Track);
                if (Track_LBA_Pos < 0) Track_LBA_Pos = 0;
+               if (Track_LBA_Pos)
+                       pos1024 = Track_LBA_Pos * 1024 / Pico_mcd->TOC.Tracks[index].Length;
 
-               // MP3_Play(index, Track_LBA_Pos); // TODO
+               mp3_start_play(Pico_mcd->TOC.Tracks[index].F, pos1024);
        }
        else
        {