mirror of
https://github.com/ZDoom/Raze.git
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306 lines
8.9 KiB
C
306 lines
8.9 KiB
C
//-------------------------------------------------------------------------
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/*
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Copyright (C) 2010 EDuke32 developers and contributors
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This file is part of EDuke32.
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EDuke32 is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License version 2
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as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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//-------------------------------------------------------------------------
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#include "compat.h"
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#include "baselayer.h"
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#include "scriptfile.h"
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#include "cache1d.h"
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#include "crc32.h"
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#include "duke3d.h"
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#include "common_game.h"
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#include "grpscan.h"
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struct grpfile grpfiles[NUMGRPFILES] =
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{
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{ "Duke Nukem 3D", DUKE13_CRC, 26524524, GAMEFLAG_DUKE, 0, NULL, NULL },
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{ "Duke Nukem 3D (South Korean Censored)", DUKEKR_CRC, 26385383, GAMEFLAG_DUKE, 0, NULL, NULL },
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{ "Duke Nukem 3D: Atomic Edition", DUKE15_CRC, 44356548, GAMEFLAG_DUKE, 0, NULL, NULL },
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{ "Duke Nukem 3D: Plutonium Pak", DUKEPP_CRC, 44348015, GAMEFLAG_DUKE, 0, NULL, NULL },
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{ "Duke Nukem 3D Shareware", DUKESW_CRC, 11035779, GAMEFLAG_DUKE, 0, NULL, NULL },
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{ "Duke Nukem 3D Mac Demo", DUKEMD_CRC, 10444391, GAMEFLAG_DUKE, 0, NULL, NULL },
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{ "Duke it out in D.C.", DUKEDC_CRC, 8410183 , GAMEFLAG_DUKE|GAMEFLAG_ADDON, DUKE15_CRC, NULL, NULL },
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{ "Duke Caribbean: Life's a Beach", DUKECB_CRC, 22213819, GAMEFLAG_DUKE|GAMEFLAG_ADDON, DUKE15_CRC, NULL, NULL },
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{ "Duke: Nuclear Winter", DUKENW_CRC, 16169365, GAMEFLAG_DUKE|GAMEFLAG_ADDON, DUKE15_CRC, "nwinter.con", NULL },
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{ "NAM", NAM_CRC, 43448927, GAMEFLAG_NAM, 0, NULL, NULL },
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{ "NAPALM", NAPALM_CRC, 44365728, GAMEFLAG_NAM|GAMEFLAG_NAPALM, 0, NULL, NULL },
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{ "WWII GI", WW2GI_CRC, 77939508, GAMEFLAG_WW2GI|GAMEFLAG_NAM, 0, NULL, NULL },
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};
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struct grpfile *foundgrps = NULL;
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#define GRPCACHEFILE "grpfiles.cache"
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static struct grpcache
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{
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struct grpcache *next;
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int32_t size;
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int32_t mtime;
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int32_t crcval;
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char name[BMAX_PATH];
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}
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*grpcache = NULL, *usedgrpcache = NULL;
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static int32_t LoadGroupsCache(void)
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{
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struct grpcache *fg;
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int32_t fsize, fmtime, fcrcval;
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char *fname;
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scriptfile *script;
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script = scriptfile_fromfile(GRPCACHEFILE);
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if (!script) return -1;
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while (!scriptfile_eof(script))
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{
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if (scriptfile_getstring(script, &fname)) break; // filename
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if (scriptfile_getnumber(script, &fsize)) break; // filesize
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if (scriptfile_getnumber(script, &fmtime)) break; // modification time
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if (scriptfile_getnumber(script, &fcrcval)) break; // crc checksum
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fg = (struct grpcache *)Bcalloc(1, sizeof(struct grpcache));
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fg->next = grpcache;
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grpcache = fg;
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Bstrncpy(fg->name, fname, BMAX_PATH);
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fg->size = fsize;
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fg->mtime = fmtime;
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fg->crcval = fcrcval;
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}
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scriptfile_close(script);
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return 0;
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}
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static void FreeGroupsCache(void)
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{
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struct grpcache *fg;
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while (grpcache)
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{
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fg = grpcache->next;
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Bfree(grpcache);
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grpcache = fg;
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}
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}
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void RemoveGroup(int32_t crcval)
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{
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struct grpfile *grp, *fg;
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for (grp = foundgrps; grp; grp=grp->next)
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{
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if (grp->crcval == crcval)
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{
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if (grp == foundgrps)
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foundgrps = grp->next;
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else fg->next = grp->next;
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Bfree((char *)grp->name);
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Bfree(grp);
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break;
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}
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fg = grp;
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}
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}
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struct grpfile * FindGroup(int32_t crcval)
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{
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struct grpfile *grp;
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for (grp = foundgrps; grp; grp=grp->next)
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{
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if (grp->crcval == crcval)
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return grp;
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}
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return NULL;
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}
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int32_t ScanGroups(void)
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{
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CACHE1D_FIND_REC *srch, *sidx;
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struct grpcache *fg, *fgg;
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struct grpfile *grp;
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char *fn;
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struct Bstat st;
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#define BUFFER_SIZE (1024 * 1024 * 8)
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uint8_t *buf = (uint8_t *)Bmalloc(BUFFER_SIZE);
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if (!buf)
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{
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initprintf("Error allocating %d byte buffer to scan GRPs!\n", BUFFER_SIZE);
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return 0;
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}
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initprintf("Searching for game data...\n");
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LoadGroupsCache();
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srch = klistpath("/", "*.grp", CACHE1D_FIND_FILE);
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for (sidx = srch; sidx; sidx = sidx->next)
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{
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for (fg = grpcache; fg; fg = fg->next)
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{
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if (!Bstrcmp(fg->name, sidx->name)) break;
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}
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if (fg)
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{
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if (findfrompath(sidx->name, &fn)) continue; // failed to resolve the filename
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if (Bstat(fn, &st))
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{
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Bfree(fn);
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continue;
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} // failed to stat the file
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Bfree(fn);
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if (fg->size == st.st_size && fg->mtime == st.st_mtime)
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{
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grp = (struct grpfile *)Bcalloc(1, sizeof(struct grpfile));
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grp->name = Bstrdup(sidx->name);
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grp->crcval = fg->crcval;
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grp->size = fg->size;
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grp->next = foundgrps;
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foundgrps = grp;
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fgg = (struct grpcache *)Bcalloc(1, sizeof(struct grpcache));
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strcpy(fgg->name, fg->name);
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fgg->size = fg->size;
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fgg->mtime = fg->mtime;
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fgg->crcval = fg->crcval;
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fgg->next = usedgrpcache;
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usedgrpcache = fgg;
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continue;
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}
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}
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{
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int32_t b, fh;
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int32_t crcval;
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fh = openfrompath(sidx->name, BO_RDONLY|BO_BINARY, BS_IREAD);
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if (fh < 0) continue;
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if (Bfstat(fh, &st)) continue;
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initprintf(" Checksumming %s...", sidx->name);
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crc32init((uint32_t *)&crcval);
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do
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{
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b = read(fh, buf, BUFFER_SIZE);
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if (b > 0) crc32block((uint32_t *)&crcval, (uint8_t *)buf, b);
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}
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while (b == BUFFER_SIZE);
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crc32finish((uint32_t *)&crcval);
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close(fh);
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initprintf(" Done\n");
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grp = (struct grpfile *)Bcalloc(1, sizeof(struct grpfile));
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grp->name = Bstrdup(sidx->name);
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grp->crcval = crcval;
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grp->size = st.st_size;
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grp->next = foundgrps;
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foundgrps = grp;
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fgg = (struct grpcache *)Bcalloc(1, sizeof(struct grpcache));
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Bstrncpy(fgg->name, sidx->name, BMAX_PATH);
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fgg->size = st.st_size;
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fgg->mtime = st.st_mtime;
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fgg->crcval = crcval;
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fgg->next = usedgrpcache;
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usedgrpcache = fgg;
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}
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}
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klistfree(srch);
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FreeGroupsCache();
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for (grp = foundgrps; grp; /*grp=grp->next*/)
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{
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int32_t i;
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for (i = 0; i<NUMGRPFILES; i++) if (grp->crcval == grpfiles[i].crcval) break;
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if (i == NUMGRPFILES) continue; // unrecognised grp file
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if (grpfiles[i].dependency)
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{
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//initprintf("found grp with dep\n");
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for (grp = foundgrps; grp; grp=grp->next)
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if (grp->crcval == grpfiles[i].dependency) break;
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if (grp == NULL || grp->crcval != grpfiles[i].dependency) // couldn't find dependency
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{
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//initprintf("removing %s\n", grp->name);
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RemoveGroup(grpfiles[i].crcval);
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grp = foundgrps;
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continue;
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}
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}
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grp=grp->next;
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}
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if (usedgrpcache)
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{
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int32_t i = 0;
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FILE *fp;
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fp = fopen(GRPCACHEFILE, "wt");
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if (fp)
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{
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for (fg = usedgrpcache; fg; fg=fgg)
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{
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fgg = fg->next;
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fprintf(fp, "\"%s\" %d %d %d\n", fg->name, fg->size, fg->mtime, fg->crcval);
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Bfree(fg);
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i++;
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}
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fclose(fp);
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}
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// initprintf("Found %d recognized GRP %s.\n",i,i>1?"files":"file");
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Bfree(buf);
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return 0;
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}
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initprintf("Found no recognized game data!\n");
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Bfree(buf);
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return 0;
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}
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void FreeGroups(void)
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{
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struct grpfile *fg;
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while (foundgrps)
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{
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fg = foundgrps->next;
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Bfree((char *)foundgrps->name);
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Bfree(foundgrps);
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foundgrps = fg;
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}
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}
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