+/***********************************************************
+ * *
+ * 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 dprintf
//#define cdprintf(x...)
#define DEBUG_CD
-void FILE_End(void)
+PICO_INTERNAL int Load_ISO(const char *iso_name, int is_bin)
{
- 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, iso_name_len;
_scd_track *Tracks = Pico_mcd->TOC.Tracks;
- FILE *tmp_file;
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",
Tracks[0].ftype = is_bin ? TYPE_BIN : TYPE_ISO;
- ret = stat(iso_name, &file_stat);
- if (ret != 0) return -1;
-
- Tracks[0].Length = file_stat.st_size;
-
- if (Tracks[0].ftype == TYPE_ISO) Tracks[0].Length >>= 11; // size in sectors
- else Tracks[0].Length /= 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].ftype = 0;
return -1;
}
- if (Tracks[0].ftype == 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);
+ if (Tracks[0].ftype == TYPE_ISO)
+ Tracks[0].Length = pmf->size >>= 11; // size in sectors
+ else Tracks[0].Length = pmf->size /= 2352;
Tracks[0].MSF.M = 0; // minutes
Tracks[0].MSF.S = 2; // seconds
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(j = 0; j < sizeof(exts)/sizeof(char *); j++)
{
int ext_len;
+ FILE *tmp_file;
sprintf(tmp_ext, exts[j], i);
ext_len = strlen(tmp_ext);
if (tmp_file)
{
- // float fs;
int fs;
+ struct stat file_stat;
index = num_track - 1;
ret = stat(tmp_name, &file_stat);
}
-void Unload_ISO(void)
+PICO_INTERNAL void Unload_ISO(void)
{
int i;
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 (Pico_mcd->TOC.Tracks[i].F) fclose(Pico_mcd->TOC.Tracks[i].F);
- Pico_mcd->TOC.Tracks[i].F = NULL;
- Pico_mcd->TOC.Tracks[i].Length = 0;
- Pico_mcd->TOC.Tracks[i].ftype = 0;
}
+ 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 = 0;
// static char cp_buf[2560];
if (Pico_mcd->s68k_regs[0x36] & 1) // DATA
{
if (Pico_mcd->TOC.Tracks[0].F == NULL) return -1;
- 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;
-
- if (Pico_mcd->TOC.Tracks[0].ftype == 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);
{
// int rate, channel;
- if (Pico_mcd->TOC.Tracks[Pico_mcd->scd.Cur_Track - 1].ftype == TYPE_MP3)
+ // if (Pico_mcd->TOC.Tracks[Pico_mcd->scd.Cur_Track - 1].ftype == TYPE_MP3)
{
// TODO
// MP3_Update(cp_buf, &rate, &channel, 0);
{
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], &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);
- fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
- fread(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, 1, 2048, Pico_mcd->TOC.Tracks[0].F);
+ //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("Read -> WA = %d Buffer[%d] =", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF);
}
-int FILE_Play_CD_LBA(void)
+PICO_INTERNAL int FILE_Play_CD_LBA(void)
{
int index = Pico_mcd->scd.Cur_Track - 1;
Pico_mcd->m.audio_track = index;
notaz.gp2x.de / picodrive.git / blobdiff