void texcache_syncmemcache(void)
{
int32_t len = Bfilelength(texcache.filehandle);
if (!texcache.memcache.ptr || texcache.filehandle == -1 || len <= (int32_t)texcache.memcache.size)
return;
texcache.memcache.ptr = (uint8_t *)Brealloc(texcache.memcache.ptr, len);
if (!texcache.memcache.ptr)
{
texcache_clearmemcache();
initprintf("Failed syncing memcache to texcache, disabling memcache.\n");
texcache.memcache.noalloc = 1;
}
else
{
initprintf("Syncing memcache to texcache\n");
Blseek(texcache.filehandle, texcache.memcache.size, BSEEK_SET);
if (Bread(texcache.filehandle, texcache.memcache.ptr + texcache.memcache.size, len - texcache.memcache.size) != (bssize_t)(len-texcache.memcache.size))
{
initprintf("polymost_cachesync: Failed reading texcache into memcache!\n");
texcache_clearmemcache();
texcache.memcache.noalloc = 1;
}
else
{
texcache.memcache.size = len;
}
}
}
void texcache_setupmemcache(void)
{
if (!glusememcache || texcache.memcache.noalloc || !texcache_enabled())
return;
texcache.memcache.size = Bfilelength(texcache.filehandle);
if (texcache.memcache.size <= 0)
return;
texcache.memcache.ptr = (uint8_t *)Brealloc(texcache.memcache.ptr, texcache.memcache.size);
if (!texcache.memcache.ptr)
{
initprintf("Failed allocating %d bytes for memcache, disabling memcache.\n", (int)texcache.memcache.size);
texcache_clearmemcache();
texcache.memcache.noalloc = 1;
return;
}
if (Bread(texcache.filehandle, texcache.memcache.ptr, texcache.memcache.size) != (bssize_t)texcache.memcache.size)
{
initprintf("Failed reading texcache into memcache!\n");
texcache_clearmemcache();
texcache.memcache.noalloc = 1;
}
}
char testcd( char *fn, long testsiz )
{
DWORD driveletters;
int i, fil, dalen;
char name[32]="x:\\SUPPORT\\",driv[4]="x:\\";
strcat(name,fn);
driveletters = GetLogicalDrives();
for (i=2; i<26; i++) {
if (!(driveletters & (1ul<<i))) continue;
driv[0] = 'A'+i;
if (GetDriveType(driv) != DRIVE_CDROM) continue;
name[0] = 'A'+i;
fil = Bopen(name,O_RDONLY,S_IREAD);
if (fil<0) continue;
dalen = Bfilelength(fil);
Bclose(fil);
if (dalen == testsiz) {
initprintf("Copy Protection: Found CDROM in drive %c:\n", driv[0]);
return 0;
}
}
wm_msgbox("Duke Nukem 3D","Copy Protection: Failed to find CDROM");
return 1;
}
int32_t SafeFileLength(int32_t handle)
{
if (handle < 0) return -1;
return Bfilelength(handle);
}