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