// イメージファイルの実体を開き、各種情報構築
BRESULT setsxsidev(SXSIDEV sxsi, const OEMCHAR *path, const _CDTRK *trk, UINT trks) {
FILEH fh;
long totals;
CDINFO cdinfo;
UINT mediatype;
UINT i;
#ifdef TOCLOGOUT
OEMCHAR logpath[MAX_PATH];
OEMCHAR logbuf[2048];
TEXTFILEH tfh;
#endif
// trk、trksは有効な値が設定済みなのが前提
if ((trk == NULL) || (trks == 0)) {
goto sxsiope_err1;
}
fh = file_open_rb(path);
if (fh == FILEH_INVALID) {
goto sxsiope_err1;
}
cdinfo = (CDINFO)_MALLOC(sizeof(_CDINFO), path);
if (cdinfo == NULL) {
goto sxsiope_err2;
}
ZeroMemory(cdinfo, sizeof(_CDINFO));
cdinfo->fh = fh;
trks = min(trks, NELEMENTS(cdinfo->trk) - 1);
CopyMemory(cdinfo->trk, trk, trks * sizeof(_CDTRK));
#ifdef TOCLOGOUT
file_cpyname(logpath, path, NELEMENTS(logpath));
file_cutext(logpath);
file_catname(logpath, str_logB, NELEMENTS(logpath));
tfh = textfile_create(logpath, 0x800);
if (tfh == NULL) {
return(FAILURE);
}
TOCLOG(OEMTEXT("STR _CDTRK LOG\r\n"), 0);
for (i = 0; i < trks; i++) {
TOCLOG(OEMTEXT("trk[%02d]\r\n"), i);
TOCLOG(OEMTEXT(" adr_ctl = 0x%02X\r\n"), cdinfo->trk[i].adr_ctl);
TOCLOG(OEMTEXT(" point = %02d\r\n"), cdinfo->trk[i].point);
TOCLOG(OEMTEXT(" [pos0][pos][ ] = [%18I32d]"), cdinfo->trk[i].pos0);
TOCLOG(OEMTEXT("[%18I32d][ ]\r\n"), cdinfo->trk[i].pos);
TOCLOG(OEMTEXT(" sec[ ][str][end] = [ ][%18I32d]"), cdinfo->trk[i].str_sec);
TOCLOG(OEMTEXT("[%18I32d]\r\n"), cdinfo->trk[i].end_sec);
TOCLOG(OEMTEXT(" sectors = %I32d\r\n"), cdinfo->trk[i].sectors);
TOCLOG(OEMTEXT(" sector_size = %d\r\n"), cdinfo->trk[i].sector_size);
TOCLOG(OEMTEXT(" sector [pregap][start][end] = [%18I32d]"), cdinfo->trk[i].pregap_sector);
TOCLOG(OEMTEXT("[%18I32d]"), cdinfo->trk[i].start_sector);
TOCLOG(OEMTEXT("[%18I32d]\r\n"), cdinfo->trk[i].end_sector);
TOCLOG(OEMTEXT(" img_sec[pregap][start][end] = [%18I32d]"), cdinfo->trk[i].img_pregap_sec);
TOCLOG(OEMTEXT("[%18I32d]"), cdinfo->trk[i].img_start_sec);
TOCLOG(OEMTEXT("[%18I32d]\r\n"), cdinfo->trk[i].img_end_sec);
TOCLOG(OEMTEXT(" offset [pregap][start][end] = [0x%016I64X]"), cdinfo->trk[i].pregap_offset);
TOCLOG(OEMTEXT("[0x%016I64X]"), cdinfo->trk[i].start_offset);
TOCLOG(OEMTEXT("[0x%016I64X]\r\n"), cdinfo->trk[i].end_offset);
TOCLOG(OEMTEXT(" pregap_sectors = %I32d\r\n"), cdinfo->trk[i].pregap_sectors);
TOCLOG(OEMTEXT(" track_sectors = %I32d\r\n"), cdinfo->trk[i].track_sectors);
}
TOCLOG(OEMTEXT("END _CDTRK LOG\r\n"), 0);
textfile_close(tfh);
#endif
#if 1
if (sxsi->totals == -1) {
totals = set_trkinfo(fh, cdinfo->trk, trks, 0);
if (totals < 0) {
goto sxsiope_err3;
}
sxsi->totals = totals;
}
#else
totals = issec(fh, cdinfo->trk, trks); // とりあえず
sxsi->read = sec2048_read;
totals = issec2048(cdinfo->fh);
if (totals < 0) {
sxsi->read = sec2352_read;
totals = issec2352(cdinfo->fh);
}
if (totals < 0) {
sxsi->read = sec2448_read;
totals = issec2448(cdinfo->fh);
}
if (totals < 0) {
sxsi->read = sec_read;
totals = issec(cdinfo->fh, cdinfo->trk, trks);
}
if (totals < 0) {
goto sxsiope_err3;
}
#endif
mediatype = 0;
for (i = 0; i < trks; i++) {
if (cdinfo->trk[i].adr_ctl == TRACK_DATA) {
mediatype |= SXSIMEDIA_DATA;
}
else if (cdinfo->trk[i].adr_ctl == TRACK_AUDIO) {
mediatype |= SXSIMEDIA_AUDIO;
}
}
// リードアウトトラックを生成
cdinfo->trk[trks].adr_ctl = 0x10;
cdinfo->trk[trks].point = 0xaa;
// cdinfo->trk[trks].pos = totals;
cdinfo->trk[trks].pos = sxsi->totals;
cdinfo->trks = trks;
file_cpyname(cdinfo->path, path, NELEMENTS(cdinfo->path));
sxsi->reopen = cd_reopen;
sxsi->close = cd_close;
sxsi->destroy = cd_destroy;
sxsi->hdl = (INTPTR)cdinfo;
// sxsi->totals = totals;
sxsi->cylinders = 0;
sxsi->size = 2048;
sxsi->sectors = 1;
sxsi->surfaces = 1;
sxsi->headersize = 0;
sxsi->mediatype = mediatype;
#ifdef TOCLOGOUT
file_cpyname(logpath, path, NELEMENTS(logpath));
file_cutext(logpath);
file_catname(logpath, str_logA, NELEMENTS(logpath));
tfh = textfile_create(logpath, 0x800);
if (tfh == NULL) {
return(FAILURE);
}
TOCLOG(OEMTEXT("STR _CDTRK LOG\r\n"), 0);
for (i = 0; i < trks; i++) {
TOCLOG(OEMTEXT("trk[%02d]\r\n"), i);
TOCLOG(OEMTEXT(" adr_ctl = 0x%02X\r\n"), cdinfo->trk[i].adr_ctl);
TOCLOG(OEMTEXT(" point = %02d\r\n"), cdinfo->trk[i].point);
TOCLOG(OEMTEXT(" [pos0][pos][ ] = [%18I32d]"), cdinfo->trk[i].pos0);
TOCLOG(OEMTEXT("[%18I32d][ ]\r\n"), cdinfo->trk[i].pos);
TOCLOG(OEMTEXT(" sec[ ][str][end] = [ ][%18I32d]"), cdinfo->trk[i].str_sec);
TOCLOG(OEMTEXT("[%18I32d]\r\n"), cdinfo->trk[i].end_sec);
TOCLOG(OEMTEXT(" sectors = %I32d\r\n"), cdinfo->trk[i].sectors);
TOCLOG(OEMTEXT(" sector_size = %d\r\n"), cdinfo->trk[i].sector_size);
TOCLOG(OEMTEXT(" sector [pregap][start][end] = [%18I32d]"), cdinfo->trk[i].pregap_sector);
TOCLOG(OEMTEXT("[%18I32d]"), cdinfo->trk[i].start_sector);
TOCLOG(OEMTEXT("[%18I32d]\r\n"), cdinfo->trk[i].end_sector);
TOCLOG(OEMTEXT(" img_sec[pregap][start][end] = [%18I32d]"), cdinfo->trk[i].img_pregap_sec);
TOCLOG(OEMTEXT("[%18I32d]"), cdinfo->trk[i].img_start_sec);
TOCLOG(OEMTEXT("[%18I32d]\r\n"), cdinfo->trk[i].img_end_sec);
TOCLOG(OEMTEXT(" offset [pregap][start][end] = [0x%016I64X]"), cdinfo->trk[i].pregap_offset);
TOCLOG(OEMTEXT("[0x%016I64X]"), cdinfo->trk[i].start_offset);
TOCLOG(OEMTEXT("[0x%016I64X]\r\n"), cdinfo->trk[i].end_offset);
TOCLOG(OEMTEXT(" pregap_sectors = %I32d\r\n"), cdinfo->trk[i].pregap_sectors);
TOCLOG(OEMTEXT(" track_sectors = %I32d\r\n"), cdinfo->trk[i].track_sectors);
}
TOCLOG(OEMTEXT("END _CDTRK LOG\r\n"), 0);
textfile_close(tfh);
#endif
return(SUCCESS);
sxsiope_err3:
_MFREE(cdinfo);
sxsiope_err2:
file_close(fh);
sxsiope_err1:
return(FAILURE);
}
long issec(FILEH fh, _CDTRK *trk, UINT trks) {
#ifdef CHECK_ISO9660
long fpos;
UINT8 buf[2048];
UINT secsize;
#endif
UINT i;
// UINT fsize;
INT64 fsize;
long total;
total = 0;
#ifdef CHECK_ISO9660
fpos = 16 * trk[0].sector_size;
if (trk[0].sector_size != 2048) {
fpos += 16;
}
if (file_seek(fh, fpos, FSEEK_SET) != fpos) {
goto sec_err;
}
if (file_read(fh, buf, sizeof(buf)) != sizeof(buf)) {
goto sec_err;
}
if (memcmp(buf, cd001, 7) != 0) {
goto sec_err;
}
secsize = LOADINTELWORD(buf + 128);
if (secsize != 2048) {
goto sec_err;
}
#endif
if (trks == 1) {
trk[0].sector_size = 2048;
trk[0].str_sec = 0;
total = issec2048(fh);
if (total < 0) {
trk[0].sector_size = 2352;
total = issec2352(fh);
}
if (total < 0) {
trk[0].sector_size = 2448;
total = issec2448(fh);
}
if (total < 0) {
return(-1);
}
else {
trk[0].end_sec = total - 1;
trk[0].sectors = total;
return(total);
}
}
// fsize = file_getsize(fh);
fsize = file_getsizei64(fh);
if (trk[0].pos0 == 0) {
trk[0].str_sec = trk[0].pos;
}
else {
trk[0].str_sec = trk[0].pos0;
}
for (i = 1; i < trks; i++) {
if (trk[i].pos0 == 0) {
trk[i].str_sec = trk[i].pos;
}
else {
trk[i].str_sec = trk[i].pos0;
}
trk[i-1].end_sec = trk[i].str_sec - 1;
trk[i-1].sectors = trk[i-1].end_sec - trk[i-1].str_sec + 1;
total += trk[i-1].sectors;
fsize -= trk[i-1].sectors * trk[i-1].sector_size;
}
if (fsize % trk[trks-1].sector_size != 0) {
return(-1);
}
if (trk[trks-1].pos0 == 0) {
trk[trks-1].str_sec = trk[trks-1].pos;
}
else {
trk[trks-1].str_sec = trk[trks-1].pos0;
}
trk[trks-1].end_sec = trk[trks-1].str_sec + (fsize / trk[trks-1].sector_size);
trk[trks-1].sectors = trk[trks-1].end_sec - trk[trks-1].str_sec + 1;
total += trk[trks-1].sectors;
return(total);
#ifdef CHECK_ISO9660
sec_err:
return(-1);
#endif
}
// ※CDTRK構造体内の
// UINT32 str_sec;
// UINT32 end_sec;
// UINT32 sectors;
// 等のメンバの設定
long set_trkinfo(FILEH fh, _CDTRK *trk, UINT trks, UINT64 imagesize) {
UINT i;
INT64 fsize;
long total;
total = 0;
if (trks == 1) {
trk[0].sector_size = 2048;
trk[0].str_sec = 0;
total = issec2048(fh);
if (total < 0) {
trk[0].sector_size = 2352;
total = issec2352(fh);
}
if (total < 0) {
trk[0].sector_size = 2448;
total = issec2448(fh);
}
if (total < 0) {
return(-1);
}
else {
trk[0].end_sec = total - 1;
trk[0].sectors = total;
return(total);
}
}
if (imagesize == 0) {
fsize = file_getsizei64(fh);
}
else {
fsize = imagesize;
}
if (trk[0].pos0 == 0) {
trk[0].str_sec = trk[0].pos;
}
else {
trk[0].str_sec = trk[0].pos0;
}
for (i = 1; i < trks; i++) {
if (trk[i].pos0 == 0) {
trk[i].str_sec = trk[i].pos;
}
else {
trk[i].str_sec = trk[i].pos0;
}
trk[i-1].end_sec = trk[i].str_sec - 1;
trk[i-1].sectors = trk[i-1].end_sec - trk[i-1].str_sec + 1;
total += trk[i-1].sectors;
fsize -= trk[i-1].sectors * trk[i-1].sector_size;
}
if (fsize % trk[trks-1].sector_size != 0) {
return(-1);
}
if (trk[trks-1].pos0 == 0) {
trk[trks-1].str_sec = trk[trks-1].pos;
}
else {
trk[trks-1].str_sec = trk[trks-1].pos0;
}
trk[trks-1].end_sec = trk[trks-1].str_sec + (fsize / trk[trks-1].sector_size);
trk[trks-1].sectors = trk[trks-1].end_sec - trk[trks-1].str_sec + 1;
total += trk[trks-1].sectors;
return(total);
}
static BRESULT openimg(SXSIDEV sxsi, const OEMCHAR *path,
const _CDTRK *trk, UINT trks) {
FILEH fh;
UINT type;
int totals;
CDINFO cdinfo;
UINT mediatype;
UINT i;
fh = file_open_rb(path);
if (fh == FILEH_INVALID) {
goto sxsiope_err1;
}
type = 2048;
totals = issec2048(fh);
if (totals < 0) {
type = 2352;
totals = issec2352(fh);
}
if (totals < 0) {
goto sxsiope_err2;
}
cdinfo = (CDINFO)_MALLOC(sizeof(_CDINFO), path);
if (cdinfo == NULL) {
goto sxsiope_err2;
}
ZeroMemory(cdinfo, sizeof(_CDINFO));
cdinfo->fh = fh;
cdinfo->type = type;
if ((trk != NULL) && (trks != 0)) {
trks = min(trks, NELEMENTS(cdinfo->trk) - 1);
CopyMemory(cdinfo->trk, trk, trks * sizeof(_CDTRK));
}
else {
cdinfo->trk[0].type = 0x14;
cdinfo->trk[0].track = 1;
// cdinfo->trk[0].pos = 0;
trks = 1;
}
mediatype = 0;
for (i=0; i<trks; i++) {
if (cdinfo->trk[i].type == 0x14) {
mediatype |= SXSIMEDIA_DATA;
}
else if (cdinfo->trk[i].type == 0x10) {
mediatype |= SXSIMEDIA_AUDIO;
}
}
cdinfo->trk[trks].type = 0x10;
cdinfo->trk[trks].track = 0xaa;
cdinfo->trk[trks].pos = totals;
cdinfo->trks = trks;
file_cpyname(cdinfo->path, path, NELEMENTS(cdinfo->path));
sxsi->reopen = cd_reopen;
if (type == 2048) {
sxsi->read = sec2048_read;
}
else {
sxsi->read = sec2352_read;
}
sxsi->close = cd_close;
sxsi->destroy = cd_destroy;
sxsi->hdl = (INTPTR)cdinfo;
sxsi->totals = totals;
sxsi->cylinders = 0;
sxsi->size = 2048;
sxsi->sectors = 1;
sxsi->surfaces = 1;
sxsi->headersize = 0;
sxsi->mediatype = mediatype;
return(SUCCESS);
sxsiope_err2:
file_close(fh);
sxsiope_err1:
return(FAILURE);
}
