hl-pak0-gen/tools/gpl-quake/qfiles.c

179 lines
2.9 KiB
C

#include "cmdlib.h"
#define MAX_FILES 4096
#define MAX_DATA_PATH 512
char precache_files[MAX_FILES][MAX_DATA_PATH];
int precache_files_block[MAX_FILES];
int numfiles;
typedef struct
{
char name[56];
int filepos, filelen;
} packfile_t;
typedef struct
{
char id[4];
int dirofs;
int dirlen;
} packheader_t;
packfile_t pfiles[4096], *pf;
FILE *packhandle;
int packbytes;
/*
===========
PackFile
Copy a file into the pak file
===========
*/
void PackFile (char *src, char *name)
{
FILE *in;
int remaining, count;
char buf[4096];
if ( (byte *)pf - (byte *)pfiles > sizeof(pfiles) )
Error ("Too many files in pak file");
in = SafeOpenRead (src);
remaining = filelength (in);
pf->filepos = LittleLong (ftell (packhandle));
pf->filelen = LittleLong (remaining);
strcpy (pf->name, name);
printf ("%64s : %7i\n", pf->name, remaining);
packbytes += remaining;
while (remaining)
{
if (remaining < sizeof(buf))
count = remaining;
else
count = sizeof(buf);
SafeRead (in, buf, count);
SafeWrite (packhandle, buf, count);
remaining -= count;
}
fclose (in);
pf++;
}
/*
===========
CopyQFiles
===========
*/
void CopyQFiles (int blocknum)
{
int i, p;
char srcfile[1024];
char destfile[1024];
char name[1024];
packheader_t header;
int dirlen;
unsigned short crc;
// create a pak file
pf = pfiles;
sprintf (destfile, "%spak%i.pak", gamedir, blocknum);
packhandle = SafeOpenWrite (destfile);
SafeWrite (packhandle, &header, sizeof(header));
blocknum++;
for (i=0 ; i<numfiles ; i++)
{
if (precache_files_block[i] != blocknum)
continue;
sprintf (srcfile,"%s%s",gamedir, precache_files[i]);
PackFile (srcfile, precache_files[i]);
}
header.id[0] = 'P';
header.id[1] = 'A';
header.id[2] = 'C';
header.id[3] = 'K';
dirlen = (byte *)pf - (byte *)pfiles;
header.dirofs = LittleLong(ftell (packhandle));
header.dirlen = LittleLong(dirlen);
SafeWrite (packhandle, pfiles, dirlen);
fseek (packhandle, 0, SEEK_SET);
SafeWrite (packhandle, &header, sizeof(header));
fclose (packhandle);
// do a crc of the file
CRC_Init (&crc);
for (i=0 ; i<dirlen ; i++)
CRC_ProcessByte (&crc, ((byte *)pfiles)[i]);
i = pf - pfiles;
printf ("%i files packed in %i bytes (%i crc)\n",i, packbytes, crc);
}
/*
=============
ReadFiles
=============
*/
int ReadFiles (void)
{
FILE *f;
int i;
f = SafeOpenRead ("files.dat");
fscanf(f, "%i\n", &numfiles);
for (i = 0; i < numfiles ; i++) {
fscanf (f, "%i %s\n", &precache_files_block[i], precache_files[i]);
printf("%s\n", precache_files[i]);
}
fclose (f);
printf ("%i files\n", numfiles);
}
/*
=============
main
=============
*/
int main (int argc, char **argv)
{
if (argc == 1)
{
printf ("qfiles -pak <0 / 1> : build a .pak file\n");
exit (1);
}
SetQdirFromPath ("");
ReadFiles ();
if (!strcmp (argv[1], "-pak"))
{
CopyQFiles (atoi(argv[2]));
}
else
Error ("unknown command: %s", argv[1]);
return 0;
}