static void change_sector(HWND dialog)
{
struct sectorview_info *info;
imgtoolerr_t err;
TCHAR buf[32];
UINT32 new_track, new_head, new_sector;
info = get_sectorview_info(dialog);
GetWindowText(GetDlgItem(dialog, IDC_TRACKEDIT), buf, sizeof(buf) / sizeof(buf[0]));
new_track = (UINT32) _ttoi(buf);
GetWindowText(GetDlgItem(dialog, IDC_HEADEDIT), buf, sizeof(buf) / sizeof(buf[0]));
new_head = (UINT32) _ttoi(buf);
GetWindowText(GetDlgItem(dialog, IDC_SECTOREDIT), buf, sizeof(buf) / sizeof(buf[0]));
new_sector = (UINT32) _ttoi(buf);
if ((info->track != new_track) || (info->head != new_head) || (info->sector != new_sector))
{
err = read_sector_data(dialog, new_track, new_head, new_sector);
if (err)
set_sector_text(dialog);
}
}
static INT_PTR CALLBACK win_sectorview_dialog_proc(HWND dialog, UINT message,
WPARAM wparam, LPARAM lparam)
{
imgtoolerr_t err;
INT_PTR rc = 0;
struct sectorview_info *info;
RECT dialog_rect;
switch(message)
{
case WM_INITDIALOG:
info = (struct sectorview_info *) lparam;
info->font = create_font();
GetWindowRect(dialog, &dialog_rect);
info->old_width = dialog_rect.right - dialog_rect.left;
info->old_height = dialog_rect.bottom - dialog_rect.top;
info->track = ~0;
info->head = ~0;
info->sector = ~0;
SendMessage(GetDlgItem(dialog, IDC_HEXVIEW), WM_SETFONT, (WPARAM) info->font, (LPARAM) TRUE);
SetWindowLongPtr(dialog, GWLP_USERDATA, lparam);
setup_spin_control(dialog, IDC_TRACKSPIN, IDC_TRACKEDIT);
setup_spin_control(dialog, IDC_HEADSPIN, IDC_HEADEDIT);
setup_spin_control(dialog, IDC_SECTORSPIN, IDC_SECTOREDIT);
err = read_sector_data(dialog, 0, 0, 0);
if (err == IMGTOOLERR_SEEKERROR)
err = read_sector_data(dialog, 0, 0, 1);
if (!err)
set_sector_text(dialog);
break;
case WM_DESTROY:
info = get_sectorview_info(dialog);
if (info->font)
{
DeleteObject(info->font);
info->font = NULL;
}
break;
case WM_SYSCOMMAND:
if (wparam == SC_CLOSE)
EndDialog(dialog, 0);
break;
case WM_COMMAND:
switch(HIWORD(wparam))
{
case BN_CLICKED:
switch(LOWORD(wparam))
{
case IDOK:
case IDCANCEL:
EndDialog(dialog, 0);
break;
}
break;
case EN_CHANGE:
change_sector(dialog);
break;
}
break;
case WM_SIZE:
info = get_sectorview_info(dialog);
GetWindowRect(dialog, &dialog_rect);
size_dialog(dialog, sectorview_anchor,
(dialog_rect.right - dialog_rect.left) - info->old_width,
(dialog_rect.bottom - dialog_rect.top) - info->old_height);
info->old_width = dialog_rect.right - dialog_rect.left;
info->old_height = dialog_rect.bottom - dialog_rect.top;
break;
case WM_MOUSEWHEEL:
if (HIWORD(wparam) & 0x8000)
SendMessage(GetDlgItem(dialog, IDC_HEXVIEW), WM_VSCROLL, SB_LINEDOWN, 0);
else
SendMessage(GetDlgItem(dialog, IDC_HEXVIEW), WM_VSCROLL, SB_LINEUP, 0);
break;
}
return rc;
}
LIBFUNC int vdf_read_sectors(vdf_drive *drv, sector_t sector, sectcnt_t cnt, void *buffer) {
ssize_t want, rem;
uint8_t *buff = buffer;
if(!drive_is_valid(drv)) {
errno = EINVAL;
return -1;
}
if(cnt == 0)
return 0;
rem = cnt;
cnt = 0;
if(drv->flags & VDF_MBR) {
if(sector == 0) {
if(read_sector_mbr(drv, buff) == -1)
return -1;
if(--rem == 0)
return 1;
buff += drv->bps;
cnt = 1;
sector++;
}
if(sector < drv->mbr_sectors) {
want = rem;
if((sector + rem) >= drv->mbr_sectors)
want = drv->mbr_sectors - sector;
memset(buff, 0, drv->bps * want);
rem -= want;
cnt += want;
if(rem == 0)
return cnt;
sector += want;
buff += want * drv->bps;
}
sector -= drv->mbr_sectors;
}
if(sector < drv->fat1_start) {
want = rem;
if((sector + rem) >= drv->fat1_start)
want = drv->fat1_start - sector;
if(read_sector_boot(drv, sector, want, buff) == -1)
return -1;
rem -= want;
cnt += want;
if(rem == 0)
return cnt;
sector += want;
buff += want * drv->bps;
}
if(sector < drv->fat2_start) {
want = rem;
if((sector + rem) >= drv->fat2_start)
want = drv->fat2_start - sector;
#ifdef ENABLE_CLUSTER_LIST
if(drv->flags & VDF_CLUSTERLIST) {
if(read_sector_fat_clustlist(drv, sector - drv->fat1_start, want, buff) == -1)
return -1;
} else {
if(read_sector_fat(drv, sector - drv->fat1_start, want, buff) == -1)
return -1;
}
#else
if(read_sector_fat(drv, sector - drv->fat1_start, want, buff) == -1)
return -1;
#endif
rem -= want;
cnt += want;
if(rem == 0)
return cnt;
sector += want;
buff += want * drv->bps;
}
if(sector < (drv->filesys == VDF_FAT32 ? drv->data_start : drv->root_start)) {
want = rem;
if(drv->filesys == VDF_FAT32) {
if((sector + rem) >= drv->data_start)
want = drv->data_start - sector;
} else {
if((sector + rem) >= drv->root_start)
want = drv->root_start - sector;
}
#ifdef ENABLE_CLUSTER_LIST
if(drv->flags & VDF_CLUSTERLIST) {
if(read_sector_fat_clustlist(drv, sector - drv->fat2_start, want, buff) == -1)
return -1;
} else {
if(read_sector_fat(drv, sector - drv->fat2_start, want, buff) == -1)
return -1;
}
#else
if(read_sector_fat(drv, sector - drv->fat2_start, want, buff) == -1)
return -1;
#endif
rem -= want;
cnt += want;
if(rem == 0)
return cnt;
sector += want;
buff += want * drv->bps;
}
if((drv->filesys != VDF_FAT32) && (sector < drv->data_start)) {
want = rem;
if((sector + rem) >= drv->data_start)
want = drv->data_start - sector;
if(read_sector_dir(drv, sector - drv->root_start, want, buff, drv->root_dir) == -1)
return -1;
rem -= want;
cnt += want;
if(rem == 0)
return cnt;
sector += want;
buff += want * drv->bps;
}
want = rem;
if((sector + rem) >= drv->sectors)
want = drv->sectors - sector;
#ifdef ENABLE_CLUSTER_LIST
if(drv->flags & VDF_CLUSTERLIST) {
if(read_sector_data_clustlist(drv, sector, want, buff) == -1)
return -1;
} else {
if(read_sector_data(drv, sector, want, buff) == -1)
return -1;
}
#else
if(read_sector_data(drv, sector, want, buff) == -1)
return -1;
#endif
cnt += want;
return cnt;
}
