mirror of
https://github.com/MiSTer-devel/Main_MiSTer.git
synced 2026-04-12 03:04:02 +00:00
806 lines
19 KiB
C++
806 lines
19 KiB
C++
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <inttypes.h>
|
|
|
|
#include "../../file_io.h"
|
|
#include "../../user_io.h"
|
|
#include "../../spi.h"
|
|
#include "../../hardware.h"
|
|
#include "../../menu.h"
|
|
#include "psx.h"
|
|
#include "mcdheader.h"
|
|
#include "../../cd.h"
|
|
#include "../chd/mister_chd.h"
|
|
#include <libchdr/chd.h>
|
|
|
|
static char buf[1024];
|
|
static uint8_t *chd_hunkbuf = NULL;
|
|
static int chd_hunknum;
|
|
static int noreset = 0;
|
|
|
|
static int sgets(char *out, int sz, char **in)
|
|
{
|
|
*out = 0;
|
|
do
|
|
{
|
|
char *instr = *in;
|
|
int cnt = 0;
|
|
|
|
while (*instr && *instr != 10)
|
|
{
|
|
if (*instr == 13)
|
|
{
|
|
instr++;
|
|
continue;
|
|
}
|
|
|
|
if (cnt < sz - 1)
|
|
{
|
|
out[cnt++] = *instr;
|
|
out[cnt] = 0;
|
|
}
|
|
|
|
instr++;
|
|
}
|
|
|
|
if (*instr == 10) instr++;
|
|
*in = instr;
|
|
} while (!*out && **in);
|
|
|
|
return *out;
|
|
}
|
|
|
|
static uint32_t libCryptSectors[16] =
|
|
{
|
|
14105,
|
|
14231,
|
|
14485,
|
|
14579,
|
|
14649,
|
|
14899,
|
|
15056,
|
|
15130,
|
|
15242,
|
|
15312,
|
|
15378,
|
|
15628,
|
|
15919,
|
|
16031,
|
|
16101,
|
|
16167,
|
|
};
|
|
|
|
static uint32_t msfToLba(uint32_t m, uint32_t s, uint32_t f)
|
|
{
|
|
return (m * 60 + s) * 75 + f;
|
|
}
|
|
|
|
static uint8_t bcdToDec(uint8_t bcd)
|
|
{
|
|
return (bcd >> 4) * 10 + (bcd & 0x0F);
|
|
}
|
|
|
|
#define SBI_HEADER_SIZE 4
|
|
#define SBI_BLOCK_SIZE 14
|
|
|
|
static uint16_t libCryptMask(fileTYPE* sbi_file)
|
|
{
|
|
int sz;
|
|
uint16_t mask = 0;
|
|
if ((sz = FileReadAdv(sbi_file, buf, sizeof(buf))))
|
|
{
|
|
for (int i = 0;; i++)
|
|
{
|
|
int pos = SBI_HEADER_SIZE + i * SBI_BLOCK_SIZE;
|
|
if (pos >= sz) break;
|
|
uint32_t lba = msfToLba(bcdToDec(buf[pos]), bcdToDec(buf[pos + 1]), bcdToDec(buf[pos + 2]));
|
|
for (int m = 0; m < 16; m++) if (libCryptSectors[m] == lba) mask |= (1 << (15 - m));
|
|
}
|
|
}
|
|
|
|
return mask;
|
|
}
|
|
|
|
static void unload_chd(toc_t *table)
|
|
{
|
|
if (table->chd_f)
|
|
{
|
|
chd_close(table->chd_f);
|
|
}
|
|
if (chd_hunkbuf) free(chd_hunkbuf);
|
|
memset(table, 0, sizeof(toc_t));
|
|
chd_hunknum = -1;
|
|
|
|
}
|
|
|
|
static void unload_cue(toc_t *table)
|
|
{
|
|
for (int i = 0; i < table->last; i++)
|
|
{
|
|
FileClose(&table->tracks[i].f);
|
|
}
|
|
memset(table, 0, sizeof(toc_t));
|
|
}
|
|
|
|
static int load_chd(const char *filename, toc_t *table)
|
|
{
|
|
|
|
unload_chd(table);
|
|
chd_error err = mister_load_chd(filename, table);
|
|
if (err != CHDERR_NONE)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* PSX core expects the TOC values for track start/end to not take into account
|
|
* pregap, unlike some other cores. Adjust the CHD toc to reflect this
|
|
*/
|
|
|
|
for (int i = 0; i < table->last; i++)
|
|
{
|
|
if (i == 0) //First track fakes a pregap even if it doesn't exist
|
|
{
|
|
table->tracks[i].indexes[1] = 150;
|
|
table->tracks[i].start = 150;
|
|
table->tracks[i].end += 150-1;
|
|
} else {
|
|
int frame_cnt = table->tracks[i].end - table->tracks[i].start;
|
|
frame_cnt += table->tracks[i].indexes[1];
|
|
table->tracks[i].start = table->tracks[i-1].end + 1;
|
|
table->tracks[i].end = table->tracks[i].start + frame_cnt - 1;
|
|
}
|
|
}
|
|
|
|
table->end = table->tracks[table->last - 1].end + 1;
|
|
|
|
chd_hunkbuf = (uint8_t *)malloc(table->chd_hunksize);
|
|
chd_hunknum = -1;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int load_cue(const char* filename, toc_t *table)
|
|
{
|
|
static char fname[1024 + 10];
|
|
static char line[128];
|
|
char *ptr, *lptr;
|
|
static char toc[100 * 1024];
|
|
|
|
unload_cue(table);
|
|
printf("\x1b[32mPSX: Open CUE: %s\n\x1b[0m", fname);
|
|
|
|
strcpy(fname, filename);
|
|
|
|
memset(toc, 0, sizeof(toc));
|
|
if (!FileLoad(fname, toc, sizeof(toc) - 1))
|
|
{
|
|
printf("\x1b[32mPSX: cannot load file: %s\n\x1b[0m", fname);
|
|
return 0;
|
|
}
|
|
|
|
int mm, ss, bb;
|
|
int pregap = 0;
|
|
|
|
char *buf = toc;
|
|
while (sgets(line, sizeof(line), &buf))
|
|
{
|
|
lptr = line;
|
|
while (*lptr == 0x20) lptr++;
|
|
|
|
/* decode FILE commands */
|
|
if (!(memcmp(lptr, "FILE", 4)))
|
|
{
|
|
ptr = fname + strlen(fname) - 1;
|
|
while ((ptr - fname) && (*ptr != '/') && (*ptr != '\\')) ptr--;
|
|
if (ptr - fname) ptr++;
|
|
|
|
lptr += 4;
|
|
while (*lptr == 0x20) lptr++;
|
|
|
|
if (*lptr == '\"')
|
|
{
|
|
lptr++;
|
|
while ((*lptr != '\"') && (lptr <= (line + 128)) && (ptr < (fname + 1023)))
|
|
*ptr++ = *lptr++;
|
|
}
|
|
else
|
|
{
|
|
while ((*lptr != 0x20) && (lptr <= (line + 128)) && (ptr < (fname + 1023)))
|
|
*ptr++ = *lptr++;
|
|
}
|
|
*ptr = 0;
|
|
|
|
if (!FileOpen(&table->tracks[table->last].f, fname)) return 0;
|
|
|
|
printf("\x1b[32mPSX: Open track file: %s\n\x1b[0m", fname);
|
|
|
|
table->tracks[table->last].offset = 0;
|
|
|
|
if (!strstr(lptr, "BINARY"))
|
|
{
|
|
FileClose(&table->tracks[table->last].f);
|
|
printf("\x1b[32mPSX: unsupported file: %s\n\x1b[0m", fname);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* decode PREGAP commands */
|
|
else if (sscanf(lptr, "PREGAP %02d:%02d:%02d", &mm, &ss, &bb) == 3)
|
|
{
|
|
// Single bin specific, add pregab but subtract inherent pregap
|
|
pregap += bb + ss * 75 + mm * 60 * 75;
|
|
table->tracks[table->last].pregap = 1;
|
|
|
|
}
|
|
/* decode TRACK commands */
|
|
else if ((sscanf(lptr, "TRACK %02d %*s", &bb)) || (sscanf(lptr, "TRACK %d %*s", &bb)))
|
|
{
|
|
pregap = 0;
|
|
if (bb != (table->last + 1))
|
|
{
|
|
FileClose(&table->tracks[table->last].f);
|
|
printf("\x1b[32mPSX: missing tracks: %s\n\x1b[0m", fname);
|
|
return 0;
|
|
}
|
|
|
|
if (strstr(lptr, "MODE1/2352") || strstr(lptr, "MODE2/2352"))
|
|
{
|
|
table->tracks[table->last].sector_size = 2352;
|
|
table->tracks[table->last].type = 1;
|
|
if (!table->last) table->end = 150; // implicit 2 seconds pregap for track 1
|
|
}
|
|
else if (strstr(lptr, "AUDIO"))
|
|
{
|
|
table->tracks[table->last].sector_size = 2352;
|
|
table->tracks[table->last].type = 0;
|
|
}
|
|
else
|
|
{
|
|
FileClose(&table->tracks[table->last].f);
|
|
printf("\x1b[32mPSX: unsupported track type: %s\n\x1b[0m", lptr);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* decode INDEX commands */
|
|
else if ((sscanf(lptr, "INDEX 00 %02d:%02d:%02d", &mm, &ss, &bb) == 3) ||
|
|
(sscanf(lptr, "INDEX 0 %02d:%02d:%02d", &mm, &ss, &bb) == 3))
|
|
{
|
|
// Single bin specific
|
|
if (!table->tracks[table->last].f.opened())
|
|
{
|
|
|
|
|
|
pregap = bb+ss*75+mm*60*75;
|
|
}
|
|
}
|
|
else if ((sscanf(lptr, "INDEX 01 %02d:%02d:%02d", &mm, &ss, &bb) == 3) ||
|
|
(sscanf(lptr, "INDEX 1 %02d:%02d:%02d", &mm, &ss, &bb) == 3))
|
|
{
|
|
if (!table->tracks[table->last].f.opened())
|
|
{
|
|
table->tracks[table->last].start = bb+ss*75+mm*60*75;
|
|
if (table->tracks[table->last].pregap)
|
|
table->tracks[table->last].start += pregap;
|
|
//Subtract the fake 150 sector pregap used for the first data track
|
|
table->tracks[table->last].offset = table->tracks[table->last].start*table->tracks[table->last].sector_size;
|
|
if (table->last)
|
|
{
|
|
table->tracks[table->last-1].end = table->tracks[table->last].start-1;
|
|
if (pregap)
|
|
{
|
|
table->tracks[table->last].indexes[1] = table->tracks[table->last].start - pregap;
|
|
if (!table->tracks[table->last].pregap)
|
|
{
|
|
table->tracks[table->last].offset -= 2352*table->tracks[table->last].indexes[1];
|
|
table->tracks[table->last].indexes[1] = table->tracks[table->last].start - pregap;
|
|
} else {
|
|
table->tracks[table->last].indexes[1] = pregap;
|
|
}
|
|
}
|
|
} else if (table->tracks[table->last].type) {
|
|
table->tracks[table->last].indexes[1] = 150;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
table->tracks[table->last].indexes[1] = bb + ss * 75 + mm * 60 * 75;
|
|
if (table->tracks[table->last].type && !table->last) table->tracks[table->last].indexes[1] = 150;
|
|
table->tracks[table->last].start = table->end;
|
|
table->end += (table->tracks[table->last].f.size / table->tracks[table->last].sector_size);
|
|
table->tracks[table->last].offset = 0;
|
|
}
|
|
table->tracks[table->last].end = table->end - 1;
|
|
table->last++;
|
|
if (table->last >= 99) break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
for (int i = 0; i < table->last; i++)
|
|
{
|
|
printf("\x1b[32mPSX: Track = %u, start = %u, end = %u, offset = %d, sector_size=%d, type = %u\n\x1b[0m", i, table->tracks[i].start, table->tracks[i].end, table->tracks[i].offset, table->tracks[i].sector_size, table->tracks[i].type);
|
|
if (table->tracks[i].indexes[1])
|
|
printf("\x1b[32mPSX: Track = %u,Index1 = %u seconds\n\x1b[0m", i, table->tracks[i].indexes[1] / 75);
|
|
|
|
}*/
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int load_cd_image(const char *filename, toc_t *table)
|
|
{
|
|
|
|
const char *ext = strrchr(filename, '.');
|
|
if (!ext) return 0;
|
|
|
|
if (!strncasecmp(".chd", ext, 4))
|
|
{
|
|
return load_chd(filename, table);
|
|
}
|
|
else if (!strncasecmp(".cue", ext, 4))
|
|
{
|
|
return load_cue(filename, table);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
struct track_t
|
|
{
|
|
uint32_t start_lba;
|
|
uint32_t end_lba;
|
|
uint32_t bcd;
|
|
uint32_t reserved;
|
|
};
|
|
|
|
struct disk_t
|
|
{
|
|
uint32_t track_count;
|
|
uint32_t total_lba;
|
|
uint32_t total_bcd;
|
|
uint16_t libcrypt_mask;
|
|
uint16_t metadata; // lower 2 bits encode the region, 3rd bit is reset request, the other bits are reseved
|
|
track_t track[99];
|
|
};
|
|
|
|
enum region_t
|
|
{
|
|
UNKNOWN = 0,
|
|
JP,
|
|
US,
|
|
EU
|
|
};
|
|
|
|
static const char* region_string(region_t region)
|
|
{
|
|
switch (region)
|
|
{
|
|
case region_t::JP: return "Japan";
|
|
case region_t::US: return "USA";
|
|
case region_t::EU: return "Europe";
|
|
default: return "Unknown";
|
|
}
|
|
}
|
|
|
|
#define BCD(v) ((uint8_t)((((v)/10) << 4) | ((v)%10)))
|
|
|
|
static void send_cue_and_metadata(toc_t *table, uint16_t libcrypt_mask, enum region_t region, int reset)
|
|
{
|
|
disk_t *disk = new disk_t;
|
|
if (disk)
|
|
{
|
|
for (int i = 0; i < table->last; i++)
|
|
{
|
|
printf("\x1b[32mPSX: Track = %u, start = %u, end = %u, offset = %d, sector_size=%d, type = %u\n\x1b[0m", i, table->tracks[i].start, table->tracks[i].end, table->tracks[i].offset, table->tracks[i].sector_size, table->tracks[i].type);
|
|
if (table->tracks[i].indexes[1]) printf("\x1b[32mPSX: Track = %u,Index1 = %u seconds\n\x1b[0m", i, table->tracks[i].indexes[1] / 75);
|
|
}
|
|
|
|
memset(disk, 0, sizeof(disk_t));
|
|
disk->libcrypt_mask = libcrypt_mask;
|
|
disk->metadata = region; // the lower 2 bits of metadata contain the region
|
|
if (reset) disk->metadata |= 4; // 3rd bit is reset request
|
|
disk->track_count = (BCD(table->last) << 8) | table->last;
|
|
disk->total_lba = table->end;
|
|
int m = (disk->total_lba / 75) / 60;
|
|
int s = (disk->total_lba / 75) % 60;
|
|
disk->total_bcd = (BCD(m) << 8) | BCD(s);
|
|
|
|
for (int i = 0; i < table->last; i++)
|
|
{
|
|
disk->track[i].start_lba = i ? table->tracks[i].start : 0;
|
|
disk->track[i].end_lba = table->tracks[i].end;
|
|
m = ((disk->track[i].start_lba + table->tracks[i].indexes[1]) / 75) / 60;
|
|
s = ((disk->track[i].start_lba + table->tracks[i].indexes[1]) / 75) % 60;
|
|
disk->track[i].bcd = ((BCD(m) << 8) | BCD(s)) | ((table->tracks[i].type ? 0 : 1) << 16);
|
|
}
|
|
|
|
user_io_set_index(251);
|
|
user_io_set_download(1);
|
|
user_io_file_tx_data((uint8_t *)disk, sizeof(disk_t));
|
|
user_io_set_download(0);
|
|
delete(disk);
|
|
}
|
|
}
|
|
|
|
#define MCD_SIZE (128*1024)
|
|
|
|
static void psx_mount_save(const char *filename)
|
|
{
|
|
user_io_set_index(2);
|
|
if (strlen(filename))
|
|
{
|
|
FileGenerateSavePath(filename, buf, 0);
|
|
user_io_file_mount(buf, 2, 1, MCD_SIZE);
|
|
StoreIdx_S(2, buf);
|
|
}
|
|
else
|
|
{
|
|
user_io_file_mount("", 2);
|
|
StoreIdx_S(2, "");
|
|
}
|
|
}
|
|
|
|
void psx_fill_blanksave(uint8_t *buffer, uint32_t lba, int cnt)
|
|
{
|
|
uint32_t offset = lba * 1024;
|
|
uint32_t size = cnt * 1024;
|
|
|
|
if ((offset + size) <= sizeof(mcdheader))
|
|
{
|
|
memcpy(buffer, mcdheader + offset, size);
|
|
}
|
|
else
|
|
{
|
|
memset(buffer, 0, size);
|
|
}
|
|
}
|
|
|
|
static toc_t toc = {};
|
|
#define CD_SECTOR_LEN 2352
|
|
|
|
int psx_chd_hunksize()
|
|
{
|
|
if (toc.chd_f)
|
|
return toc.chd_hunksize;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void psx_read_cd(uint8_t *buffer, int lba, int cnt)
|
|
{
|
|
//printf("req lba=%d, cnt=%d\n", lba, cnt);
|
|
|
|
while (cnt > 0)
|
|
{
|
|
if (lba < toc.tracks[0].start || !toc.last)
|
|
{
|
|
memset(buffer, 0, CD_SECTOR_LEN);
|
|
}
|
|
else
|
|
{
|
|
memset(buffer, 0xAA, CD_SECTOR_LEN);
|
|
for (int i = 0; i < toc.last; i++)
|
|
{
|
|
if (lba >= toc.tracks[i].start && lba <= toc.tracks[i].end)
|
|
{
|
|
if (!toc.chd_f)
|
|
{
|
|
if (toc.tracks[i].offset)
|
|
{
|
|
FileSeek(&toc.tracks[0].f, toc.tracks[i].offset+((lba-toc.tracks[i].start)*CD_SECTOR_LEN), SEEK_SET);
|
|
|
|
}else {
|
|
FileSeek(&toc.tracks[i].f, (lba - toc.tracks[i].start) * CD_SECTOR_LEN, SEEK_SET);
|
|
}
|
|
}
|
|
while (cnt)
|
|
{
|
|
if (toc.tracks[i+1].pregap && lba > (toc.tracks[i+1].start-toc.tracks[i+1].indexes[1]))
|
|
{
|
|
//The TOC is setup so that pregap sectors are actually part of the
|
|
//PREVIOUS track. If the pregap field is set the file doesn't contain
|
|
//this data, so we have to fake it.
|
|
//Check the next track's pregap and indexes[1] values to determine
|
|
//if we're reading pregap sectors
|
|
|
|
|
|
memset(buffer, 0x0, CD_SECTOR_LEN);
|
|
}
|
|
else if (toc.chd_f)
|
|
{
|
|
|
|
// The "fake" 150 sector pregap moves all the LBAs up by 150, so adjust here to read where the core actually wants data from
|
|
int read_lba = lba - toc.tracks[0].indexes[1];
|
|
if (mister_chd_read_sector(toc.chd_f, (read_lba + toc.tracks[i].offset), 0, 0, CD_SECTOR_LEN, buffer, chd_hunkbuf, &chd_hunknum) == CHDERR_NONE)
|
|
{
|
|
if (!toc.tracks[i].type) //CHD requires byteswap of audio data
|
|
{
|
|
for (int swapidx = 0; swapidx < CD_SECTOR_LEN; swapidx += 2)
|
|
{
|
|
uint8_t temp = buffer[swapidx];
|
|
buffer[swapidx] = buffer[swapidx + 1];
|
|
buffer[swapidx + 1] = temp;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
printf("\x1b[32mPSX: CHD read error: %d\n\x1b[0m", lba);
|
|
}
|
|
}
|
|
else {
|
|
if (toc.tracks[i].offset)
|
|
FileReadAdv(&toc.tracks[0].f, buffer, CD_SECTOR_LEN);
|
|
else
|
|
FileReadAdv(&toc.tracks[i].f, buffer, CD_SECTOR_LEN);
|
|
}
|
|
if ((lba + 1) > toc.tracks[i].end) break;
|
|
buffer += CD_SECTOR_LEN;
|
|
cnt--;
|
|
lba++;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
buffer += CD_SECTOR_LEN;
|
|
cnt--;
|
|
lba++;
|
|
}
|
|
}
|
|
|
|
#define ROOT_FOLDER_LBA 150 + 22
|
|
|
|
struct region_info_t
|
|
{
|
|
const char* game_id_prefix;
|
|
enum region_t region;
|
|
};
|
|
|
|
const region_info_t region_info_table[]
|
|
{
|
|
{ "SCES", region_t::EU },
|
|
{ "SLES", region_t::EU },
|
|
{ "SCUS", region_t::US },
|
|
{ "SLUS", region_t::US },
|
|
{ "SCPM", region_t::JP },
|
|
{ "SLPM", region_t::JP },
|
|
{ "SCPS", region_t::JP },
|
|
{ "SLPS", region_t::JP },
|
|
{ "SIPS", region_t::JP },
|
|
// for demo disks
|
|
{ "PUPX", region_t::US },
|
|
{ "PEPX", region_t::EU },
|
|
{ "PAPX", region_t::JP },
|
|
{ "PCPX", region_t::JP },
|
|
{ "SCZS", region_t::JP },
|
|
{ "SCED", region_t::EU },
|
|
{ "SLED", region_t::EU },
|
|
};
|
|
|
|
struct game_info_t
|
|
{
|
|
const char* game_id;
|
|
region_t region;
|
|
};
|
|
|
|
static region_t psx_get_region()
|
|
{
|
|
uint8_t buffer[CD_SECTOR_LEN];
|
|
int license_sector = 154;
|
|
psx_read_cd(buffer, license_sector, 1);
|
|
uint8_t* license_start = (uint8_t*)memmem(buffer, CD_SECTOR_LEN, " Licensed by Sony Computer Entertainment ", 60);
|
|
if (license_start) {
|
|
const uint8_t* region_start = license_start + 60;
|
|
if (memcmp(region_start, "Amer ica ", 10) == 0)
|
|
return region_t::US;
|
|
if (memcmp(region_start, "Inc.", 4) == 0)
|
|
return region_t::JP;
|
|
if (memcmp(region_start, "Euro pe", 7) == 0)
|
|
return region_t::EU;
|
|
}
|
|
|
|
return region_t::UNKNOWN;
|
|
}
|
|
|
|
static game_info_t psx_get_game_info()
|
|
{
|
|
uint8_t buffer[CD_SECTOR_LEN];
|
|
|
|
static char game_id[11];
|
|
memset(game_id, 0, sizeof(game_id));
|
|
enum region_t game_region = UNKNOWN;
|
|
|
|
for (int sector = ROOT_FOLDER_LBA; sector < ROOT_FOLDER_LBA + 25; ++sector)
|
|
{
|
|
psx_read_cd(buffer, sector, 1);
|
|
//hexdump(buffer, CD_SECTOR_LEN);
|
|
char* start = nullptr;
|
|
|
|
for (const auto& region_info : region_info_table)
|
|
{
|
|
game_region = region_info.region;
|
|
start = (char*)memmem(buffer, CD_SECTOR_LEN, region_info.game_id_prefix, 4);
|
|
if (start) break;
|
|
}
|
|
|
|
if (!start) continue;
|
|
|
|
const size_t start_pos = start - (char*)buffer;
|
|
char* end = (char*)memmem(start, CD_SECTOR_LEN - start_pos, ";1", 2);
|
|
|
|
if (!end) continue;
|
|
|
|
size_t size = end - start;
|
|
|
|
// file is usually in CCCC_DDD.DD format, normalize to CCCC-DDDDD
|
|
if (size == 11)
|
|
{
|
|
if (start[4] == '_') start[4] = '-';
|
|
if (start[8] == '.')
|
|
{
|
|
start[8] = start[9];
|
|
start[9] = start[10];
|
|
--size;
|
|
}
|
|
}
|
|
|
|
const size_t max_length = sizeof(game_id) - 1;
|
|
if (size > max_length) size = max_length;
|
|
|
|
return { (const char*)memcpy(game_id, start, size), game_region };
|
|
}
|
|
|
|
return { game_id, region_t::UNKNOWN };
|
|
}
|
|
|
|
const char* psx_get_game_id()
|
|
{
|
|
return psx_get_game_info().game_id;
|
|
}
|
|
|
|
static void mount_cd(int size, int index)
|
|
{
|
|
spi_uio_cmd_cont(UIO_SET_SDINFO);
|
|
spi32_w(size);
|
|
spi32_w(0);
|
|
DisableIO();
|
|
spi_uio_cmd8(UIO_SET_SDSTAT, (1 << index) | 0x80);
|
|
user_io_bufferinvalidate(1);
|
|
}
|
|
|
|
static int load_bios(const char* filename)
|
|
{
|
|
int sz = FileLoad(filename, 0, 0);
|
|
if (sz != 512 * 1024) return 0;
|
|
return user_io_file_tx(filename, 0xC0);
|
|
}
|
|
|
|
void psx_mount_cd(int f_index, int s_index, const char *filename)
|
|
{
|
|
static char last_dir[1024] = {};
|
|
|
|
int loaded = 0;
|
|
|
|
if (strlen(filename))
|
|
{
|
|
if (load_cd_image(filename, &toc) && toc.last)
|
|
{
|
|
int reset = 0;
|
|
game_info_t game_info = psx_get_game_info();
|
|
const char* game_id = game_info.game_id;
|
|
region_t region = psx_get_region();
|
|
if (region == region_t::UNKNOWN)
|
|
region = game_info.region;
|
|
printf("Game ID: %s, region: %s\n", game_id, region_string(region));
|
|
|
|
int name_len = strlen(filename);
|
|
|
|
if (toc.tracks[0].type) // is first track a data?
|
|
{
|
|
const char *p = strrchr(filename, '/');
|
|
int cur_len = p ? p - filename : 0;
|
|
int old_len = strlen(last_dir);
|
|
|
|
int same_game = old_len && (cur_len == old_len) && !strncmp(last_dir, filename, old_len);
|
|
|
|
if (!same_game)
|
|
{
|
|
if (!noreset && old_len)
|
|
{
|
|
strcat(last_dir, "/noreset.txt");
|
|
noreset = FileExists(last_dir);
|
|
}
|
|
reset = !noreset;
|
|
|
|
strcpy(last_dir, filename);
|
|
char *p = strrchr(last_dir, '/');
|
|
if (p) *p = 0;
|
|
else *last_dir = 0;
|
|
|
|
if (reset)
|
|
{
|
|
int bios_loaded = 0;
|
|
|
|
// load cd_bios.rom from game directory
|
|
sprintf(buf, "%s/", last_dir);
|
|
p = strrchr(buf, '/');
|
|
if (p)
|
|
{
|
|
strcpy(p + 1, "cd_bios.rom");
|
|
bios_loaded = load_bios(buf);
|
|
}
|
|
|
|
// load cd_bios.rom from parent directory
|
|
if (!bios_loaded) {
|
|
strcpy(buf, last_dir);
|
|
p = strrchr(buf, '/');
|
|
if (p)
|
|
{
|
|
strcpy(p + 1, "cd_bios.rom");
|
|
bios_loaded = load_bios(buf);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
if (!(user_io_status_get("[63]"))) psx_mount_save(last_dir);
|
|
}
|
|
}
|
|
|
|
uint16_t mask = 0;
|
|
|
|
fileTYPE sbi_file = {};
|
|
bool has_sbi_file = false;
|
|
|
|
// search for .sbi file in PSX/sbi.zip
|
|
sprintf(buf, "%s/sbi.zip/%s.sbi", HomeDir(), game_id);
|
|
has_sbi_file = (FileOpen(&sbi_file, buf, 1));
|
|
|
|
if (!has_sbi_file)
|
|
{
|
|
// search for .sbi file base on image name
|
|
strcpy(buf, filename);
|
|
strcpy((name_len > 4) ? buf + name_len - 4 : buf + name_len, ".sbi");
|
|
has_sbi_file = (FileOpen(&sbi_file, buf, 1));
|
|
}
|
|
|
|
if (has_sbi_file)
|
|
{
|
|
printf("Found SBI file: %s\n", buf);
|
|
mask = libCryptMask(&sbi_file);
|
|
}
|
|
|
|
send_cue_and_metadata(&toc, mask, region, reset);
|
|
|
|
user_io_set_index(f_index);
|
|
process_ss(filename, name_len != 0);
|
|
|
|
mount_cd(toc.end*CD_SECTOR_LEN, s_index);
|
|
loaded = 1;
|
|
}
|
|
}
|
|
|
|
if (!loaded)
|
|
{
|
|
printf("Unmount CD\n");
|
|
unload_cue(&toc);
|
|
unload_chd(&toc);
|
|
mount_cd(0, s_index);
|
|
}
|
|
}
|
|
|
|
void psx_poll()
|
|
{
|
|
spi_uio_cmd(UIO_CD_GET);
|
|
}
|
|
|
|
void psx_reset()
|
|
{
|
|
noreset = 0;
|
|
} |