void W_InitCache(void)
{
int maxfd = 0;
// set up caching
cachelump = calloc(numlumps, sizeof *cachelump);
if (!cachelump)
I_Error ("W_Init: Couldn't allocate lumpcache");
#ifdef TIMEDIAG
atexit(W_ReportLocks);
#endif
{
int i;
for (i=0; i<numlumps; i++)
if (lumpinfo[i].wadfile)
if (lumpinfo[i].wadfile->handle > maxfd) maxfd = lumpinfo[i].wadfile->handle;
}
mapped_wad = calloc(maxfd+1,sizeof *mapped_wad);
{
int i;
for (i=0; i<numlumps; i++) {
cachelump[i].locks = -1;
if (lumpinfo[i].wadfile) {
int fd = lumpinfo[i].wadfile->handle;
if (!mapped_wad[fd])
if ((mapped_wad[fd] = mmap(NULL,I_Filelength(fd),PROT_READ,MAP_SHARED,fd,0)) == MAP_FAILED)
I_Error("W_InitCache: failed to mmap");
}
}
}
}
void W_DoneCache(void)
{
{
int i;
for (i=0; i<numlumps; i++)
if (lumpinfo[i].wadfile) {
int fd = lumpinfo[i].wadfile->handle;
if (mapped_wad[fd]) {
if (munmap(mapped_wad[fd],I_Filelength(fd)))
I_Error("W_DoneCache: failed to munmap");
mapped_wad[fd] = NULL;
}
}
}
free(mapped_wad);
mapped_wad = NULL;
}
//
// W_AddFile
// All files are optional, but at least one file must be
// found (PWAD, if all required lumps are present).
// Files with a .wad extension are wadlink files
// with multiple lumps.
// Other files are single lumps with the base filename
// for the lump name.
//
// Reload hack removed by Lee Killough
// CPhipps - source is an enum
//
// proff - changed using pointer to wadfile_info_t
static void W_AddFile(wadfile_info_t *wadfile)
// killough 1/31/98: static, const
{
wadinfo_t header;
lumpinfo_t* lump_p;
unsigned i;
int length;
int startlump;
filelump_t *fileinfo, *fileinfo2free=NULL; //killough
filelump_t singleinfo;
// open the file and add to directory
wadfile->handle = open(wadfile->name,O_RDONLY | O_BINARY);
#ifdef HAVE_NET
if (wadfile->handle == -1 && D_NetGetWad(wadfile->name)) // CPhipps
wadfile->handle = open(wadfile->name,O_RDONLY | O_BINARY);
#endif
if (wadfile->handle == -1)
{
if ( strlen(wadfile->name)<=4 || // add error check -- killough
(strcasecmp(wadfile->name+strlen(wadfile->name)-4 , ".lmp" ) &&
strcasecmp(wadfile->name+strlen(wadfile->name)-4 , ".gwa" ) )
)
I_Error("W_AddFile: couldn't open %s",wadfile->name);
return;
}
//jff 8/3/98 use logical output routine
lprintf (LO_INFO," adding %s\n",wadfile->name);
startlump = numlumps;
if ( strlen(wadfile->name)<=4 ||
(
strcasecmp(wadfile->name+strlen(wadfile->name)-4,".wad") &&
strcasecmp(wadfile->name+strlen(wadfile->name)-4,".gwa")
)
)
{
// single lump file
fileinfo = &singleinfo;
singleinfo.filepos = 0;
singleinfo.size = LONG(I_Filelength(wadfile->handle));
ExtractFileBase(wadfile->name, singleinfo.name);
numlumps++;
}
else
{
// WAD file
I_Read(wadfile->handle, &header, sizeof(header));
if (strncmp(header.identification,"IWAD",4) &&
strncmp(header.identification,"PWAD",4))
I_Error("W_AddFile: Wad file %s doesn't have IWAD or PWAD id", wadfile->name);
header.numlumps = LONG(header.numlumps);
header.infotableofs = LONG(header.infotableofs);
length = header.numlumps*sizeof(filelump_t);
fileinfo2free = fileinfo = malloc(length); // killough
lseek(wadfile->handle, header.infotableofs, SEEK_SET);
I_Read(wadfile->handle, fileinfo, length);
numlumps += header.numlumps;
}
// Fill in lumpinfo
lumpinfo = realloc(lumpinfo, numlumps*sizeof(lumpinfo_t));
lump_p = &lumpinfo[startlump];
for (i=startlump ; (int)i<numlumps ; i++,lump_p++, fileinfo++)
{
lump_p->wadfile = wadfile; // killough 4/25/98
lump_p->position = LONG(fileinfo->filepos);
lump_p->size = LONG(fileinfo->size);
lump_p->li_namespace = ns_global; // killough 4/17/98
strncpy (lump_p->name, fileinfo->name, 8);
lump_p->source = wadfile->src; // Ty 08/29/98
}
free(fileinfo2free); // killough
}
//
// W_AddFile
// All files are optional, but at least one file must be
// found (PWAD, if all required lumps are present).
// Files with a .wad extension are wadlink files
// with multiple lumps.
// Other files are single lumps with the base filename
// for the lump name.
//
// Reload hack removed by Lee Killough
// CPhipps - source is an enum
//
// proff - changed using pointer to wadfile_info_t
static void W_AddFile(wadfile_info_t *wadfile)
// killough 1/31/98: static, const
{
wadinfo_t header;
lumpinfo_t* lump_p;
unsigned i;
int length;
int startlump;
filelump_t *fileinfo, *fileinfo2free=NULL; //killough
filelump_t singleinfo;
int flags = 0;
// open the file and add to directory
wadfile->handle = open(wadfile->name,O_RDONLY | O_BINARY);
#ifdef HAVE_NET
if (wadfile->handle == -1 && D_NetGetWad(wadfile->name)) // CPhipps
wadfile->handle = open(wadfile->name,O_RDONLY | O_BINARY);
#endif
if (wadfile->handle == -1 &&
strlen(wadfile->name) > 4 &&
wadfile->src == source_pwad &&
!strcasecmp(wadfile->name + strlen(wadfile->name) - 4 , ".wad") &&
D_TryGetWad(wadfile->name))
{
wadfile->handle = open(wadfile->name, O_RDONLY | O_BINARY);
}
if (wadfile->handle == -1)
{
if ( strlen(wadfile->name)<=4 || // add error check -- killough
(strcasecmp(wadfile->name+strlen(wadfile->name)-4 , ".lmp" ) &&
strcasecmp(wadfile->name+strlen(wadfile->name)-4 , ".gwa" ) )
)
I_Error("W_AddFile: couldn't open %s",wadfile->name);
return;
}
//jff 8/3/98 use logical output routine
lprintf (LO_INFO," adding %s\n",wadfile->name);
startlump = numlumps;
// mark lumps from internal resource
if (wadfile->src == source_auto_load)
{
int len = strlen(PACKAGE_TARNAME ".wad");
int len_file = strlen(wadfile->name);
if (len_file >= len)
{
if (!strcasecmp(wadfile->name + len_file - len, PACKAGE_TARNAME ".wad"))
{
flags = LUMP_PRBOOM;
}
}
}
if ( strlen(wadfile->name)<=4 ||
(
strcasecmp(wadfile->name+strlen(wadfile->name)-4,".wad") &&
strcasecmp(wadfile->name+strlen(wadfile->name)-4,".gwa")
)
)
{
// single lump file
fileinfo = &singleinfo;
singleinfo.filepos = 0;
singleinfo.size = LittleLong(I_Filelength(wadfile->handle));
ExtractFileBase(wadfile->name, singleinfo.name);
numlumps++;
}
else
{
// WAD file
I_Read(wadfile->handle, &header, sizeof(header));
if (strncmp(header.identification,"IWAD",4) &&
strncmp(header.identification,"PWAD",4))
I_Error("W_AddFile: Wad file %s doesn't have IWAD or PWAD id", wadfile->name);
header.numlumps = LittleLong(header.numlumps);
header.infotableofs = LittleLong(header.infotableofs);
length = header.numlumps*sizeof(filelump_t);
fileinfo2free = fileinfo = malloc(length); // killough
lseek(wadfile->handle, header.infotableofs, SEEK_SET),
I_Read(wadfile->handle, fileinfo, length);
numlumps += header.numlumps;
}
// Fill in lumpinfo
lumpinfo = realloc(lumpinfo, numlumps*sizeof(lumpinfo_t));
lump_p = &lumpinfo[startlump];
for (i=startlump ; (int)i<numlumps ; i++,lump_p++, fileinfo++)
{
lump_p->flags = flags;
lump_p->wadfile = wadfile; // killough 4/25/98
lump_p->position = LittleLong(fileinfo->filepos);
lump_p->size = LittleLong(fileinfo->size);
if (wadfile->src == source_lmp)
{
// Modifications to place command-line-added demo lumps
// into a separate "ns_demos" namespace so that they cannot
// conflict with other lump names
lump_p->li_namespace = ns_demos;
}
else
{
lump_p->li_namespace = ns_global; // killough 4/17/98
}
strncpy (lump_p->name, fileinfo->name, 8);
lump_p->source = wadfile->src; // Ty 08/29/98
// IWAD file used as recource PWAD must not override TEXTURE1 or PNAMES
if (wadfile->src != source_iwad && !strncmp(header.identification,"IWAD",4) &&
(!strnicmp(fileinfo->name,"TEXTURE1",8) || !strnicmp(fileinfo->name,"PNAMES",6)))
{
strncpy (lump_p->name, "-IGNORE-", 8);
}
}
free(fileinfo2free); // killough
}
