diff options
Diffstat (limited to 'src/common')
| -rw-r--r-- | src/common/grfio.c | 877 | ||||
| -rw-r--r-- | src/common/grfio.h | 12 |
2 files changed, 889 insertions, 0 deletions
diff --git a/src/common/grfio.c b/src/common/grfio.c index a96663b8f..79978f3ac 100644 --- a/src/common/grfio.c +++ b/src/common/grfio.c @@ -1,12 +1,262 @@ // Copyright (c) Athena Dev Teams - Licensed under GNU GPL // For more information, see LICENCE in the main folder +/********************************************************************* + * + * Ragnarok Online Emulator : grfio.c -- grf file I/O Module + *-------------------------------------------------------------------- + * special need library : zlib + ********************************************************************* + * $Id: grfio.c,v 1.2 2004/09/29 17:31:49 kalaspuff Exp $ + * + * 2002/12/18... the original edition + * 2003/01/23 ... Code correction + * 2003/02/01 ... An addition and decryption processing are improved for LocalFile and two or more GRF(s) check processing. + * 2003/02/02 ... Even if there is no grf it does not stop -- as -- correction + * 2003/02/02... grf reading specification can be added later -- as -- correction (grfio_add function addition) + * 2003/02 / 03... at the time of grfio_resourcecheck processing the entry addition processing method -- correction + * 2003/02/05... change of the processing in grfio_init + * 2003/02/23... a local file check -- GRFIO_LOCAL -- switch (Defoe -- Function Off) + * 2003/10/21 ... The data of alpha client was read. + * 2003/11/10 ... Ready new grf format. + * 2003/11/11 ... version check fix & bug fix + * 2006/04/16 ... fixed crash grfio_find_file when file is not found. + */ + #include <stdio.h> #include <stdlib.h> #include <string.h> +#include <ctype.h> +#include "grfio.h" +#include <sys/stat.h> #include <zlib.h> +#include "../common/mmo.h" +#include "../common/showmsg.h" +#include "../common/malloc.h" + +typedef unsigned char BYTE; +typedef unsigned short WORD; +typedef unsigned long DWORD; + +//static char data_file[1024] = ""; // "data.grf"; +//static char sdata_file[1024] = ""; // "sdata.grf"; +//static char adata_file[1024] = ""; // "adata.grf"; +static char data_dir[1024] = ""; // "../"; + +//---------------------------- +// file entry table struct +//---------------------------- +typedef struct { + int srclen; // compressed size + int srclen_aligned; // + int declen; // original size + int srcpos; + int next; //[blackhole89] - like there can be only 2^15 files + int cycle; + char type; + char fn[128-4*5]; // file name + char *fnd; + signed char gentry; // read grf file select +} FILELIST; +//gentry ... 0 : It acquires from a local file. +// It acquires from the resource file of 1>=:gentry_table[gentry-1]. +// 1<=: Check a local file. +// If it is, after re-setting to 0, it acquires from a local file. +// If there is nothing, mark reversal will be carried out, and it will re-set, and will acquire from a resource file as well as 1>=. + +//Since char defines *FILELIST.gentry, the maximum which can be added by grfio_add becomes by 127 pieces. + +#define GENTRY_LIMIT 512 +#define FILELIST_LIMIT 1048576 // temporary maximum, and a theory top maximum are 2G. + +//[blackhole89] +#define malloc_tsetdword(a,b,c) memset(a,b,c) + +static FILELIST *filelist = NULL; +static int filelist_entrys = 0; +static int filelist_maxentry = 0; + +static char **gentry_table = NULL; +static int gentry_entrys = 0; +static int gentry_maxentry = 0; + +//---------------------------- +// file list hash table +//---------------------------- +static int filelist_hash[256]; + +//---------------------------- +// grf decode data table +//---------------------------- +static unsigned char BitMaskTable[8] = { + 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 +}; +static char BitSwapTable1[64] = { + 58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, + 62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8, + 57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3, + 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7 +}; +static char BitSwapTable2[64] = { + 40, 8, 48, 16, 56, 24, 64, 32, 39, 7, 47, 15, 55, 23, 63, 31, + 38, 6, 46, 14, 54, 22, 62, 30, 37, 5, 45, 13, 53, 21, 61, 29, + 36, 4, 44, 12, 52, 20, 60, 28, 35, 3, 43, 11, 51, 19, 59, 27, + 34, 2, 42, 10, 50, 18, 58, 26, 33, 1, 41, 9, 49, 17, 57, 25 +}; +static char BitSwapTable3[32] = { + 16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10, + 2, 8, 24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25 +}; + +static unsigned char NibbleData[4][64]={ + { + 0xef, 0x03, 0x41, 0xfd, 0xd8, 0x74, 0x1e, 0x47, 0x26, 0xef, 0xfb, 0x22, 0xb3, 0xd8, 0x84, 0x1e, + 0x39, 0xac, 0xa7, 0x60, 0x62, 0xc1, 0xcd, 0xba, 0x5c, 0x96, 0x90, 0x59, 0x05, 0x3b, 0x7a, 0x85, + 0x40, 0xfd, 0x1e, 0xc8, 0xe7, 0x8a, 0x8b, 0x21, 0xda, 0x43, 0x64, 0x9f, 0x2d, 0x14, 0xb1, 0x72, + 0xf5, 0x5b, 0xc8, 0xb6, 0x9c, 0x37, 0x76, 0xec, 0x39, 0xa0, 0xa3, 0x05, 0x52, 0x6e, 0x0f, 0xd9, + }, { + 0xa7, 0xdd, 0x0d, 0x78, 0x9e, 0x0b, 0xe3, 0x95, 0x60, 0x36, 0x36, 0x4f, 0xf9, 0x60, 0x5a, 0xa3, + 0x11, 0x24, 0xd2, 0x87, 0xc8, 0x52, 0x75, 0xec, 0xbb, 0xc1, 0x4c, 0xba, 0x24, 0xfe, 0x8f, 0x19, + 0xda, 0x13, 0x66, 0xaf, 0x49, 0xd0, 0x90, 0x06, 0x8c, 0x6a, 0xfb, 0x91, 0x37, 0x8d, 0x0d, 0x78, + 0xbf, 0x49, 0x11, 0xf4, 0x23, 0xe5, 0xce, 0x3b, 0x55, 0xbc, 0xa2, 0x57, 0xe8, 0x22, 0x74, 0xce, + }, { + 0x2c, 0xea, 0xc1, 0xbf, 0x4a, 0x24, 0x1f, 0xc2, 0x79, 0x47, 0xa2, 0x7c, 0xb6, 0xd9, 0x68, 0x15, + 0x80, 0x56, 0x5d, 0x01, 0x33, 0xfd, 0xf4, 0xae, 0xde, 0x30, 0x07, 0x9b, 0xe5, 0x83, 0x9b, 0x68, + 0x49, 0xb4, 0x2e, 0x83, 0x1f, 0xc2, 0xb5, 0x7c, 0xa2, 0x19, 0xd8, 0xe5, 0x7c, 0x2f, 0x83, 0xda, + 0xf7, 0x6b, 0x90, 0xfe, 0xc4, 0x01, 0x5a, 0x97, 0x61, 0xa6, 0x3d, 0x40, 0x0b, 0x58, 0xe6, 0x3d, + }, { + 0x4d, 0xd1, 0xb2, 0x0f, 0x28, 0xbd, 0xe4, 0x78, 0xf6, 0x4a, 0x0f, 0x93, 0x8b, 0x17, 0xd1, 0xa4, + 0x3a, 0xec, 0xc9, 0x35, 0x93, 0x56, 0x7e, 0xcb, 0x55, 0x20, 0xa0, 0xfe, 0x6c, 0x89, 0x17, 0x62, + 0x17, 0x62, 0x4b, 0xb1, 0xb4, 0xde, 0xd1, 0x87, 0xc9, 0x14, 0x3c, 0x4a, 0x7e, 0xa8, 0xe2, 0x7d, + 0xa0, 0x9f, 0xf6, 0x5c, 0x6a, 0x09, 0x8d, 0xf0, 0x0f, 0xe3, 0x53, 0x25, 0x95, 0x36, 0x28, 0xcb, + } +}; +/*----------------- + * long data get + */ +static unsigned int getlong(unsigned char *p) +{ +// return *p+p[1]*256+(p[2]+p[3]*256)*65536; + return p[0] + | p[1] << 0x08 + | p[2] << 0x10 + | p[3] << 0x18; // Shinomori +} + +/*========================================== + * Grf data decode : Subs + *------------------------------------------ + */ +static void NibbleSwap(BYTE *Src, int len) +{ + for(;0<len;len--,Src++) { + *Src = (*Src>>4) | (*Src<<4); + } +} + +static void BitConvert(BYTE *Src,char *BitSwapTable) +{ + int lop,prm; + BYTE tmp[8]; +// *(DWORD*)tmp=*(DWORD*)(tmp+4)=0; + malloc_tsetdword(tmp,0,8); + for(lop=0;lop!=64;lop++) { + prm = BitSwapTable[lop]-1; + if (Src[(prm >> 3) & 7] & BitMaskTable[prm & 7]) { + tmp[(lop >> 3) & 7] |= BitMaskTable[lop & 7]; + } + } +// *(DWORD*)Src = *(DWORD*)tmp; +// *(DWORD*)(Src+4) = *(DWORD*)(tmp+4); + memcpy(Src,tmp,8); +} + +static void BitConvert4(BYTE *Src) +{ + int lop,prm; + BYTE tmp[8]; + tmp[0] = ((Src[7]<<5) | (Src[4]>>3)) & 0x3f; // ..0 vutsr + tmp[1] = ((Src[4]<<1) | (Src[5]>>7)) & 0x3f; // ..srqpo n + tmp[2] = ((Src[4]<<5) | (Src[5]>>3)) & 0x3f; // ..o nmlkj + tmp[3] = ((Src[5]<<1) | (Src[6]>>7)) & 0x3f; // ..kjihg f + tmp[4] = ((Src[5]<<5) | (Src[6]>>3)) & 0x3f; // ..g fedcb + tmp[5] = ((Src[6]<<1) | (Src[7]>>7)) & 0x3f; // ..cba98 7 + tmp[6] = ((Src[6]<<5) | (Src[7]>>3)) & 0x3f; // ..8 76543 + tmp[7] = ((Src[7]<<1) | (Src[4]>>7)) & 0x3f; // ..43210 v + + for(lop=0;lop!=4;lop++) { + tmp[lop] = (NibbleData[lop][tmp[lop*2]] & 0xf0) + | (NibbleData[lop][tmp[lop*2+1]] & 0x0f); + } + + *(DWORD*)(tmp+4)=0; + for(lop=0;lop!=32;lop++) { + prm = BitSwapTable3[lop]-1; + if (tmp[prm >> 3] & BitMaskTable[prm & 7]) { + tmp[(lop >> 3) + 4] |= BitMaskTable[lop & 7]; + } + } +// *(DWORD*)Src ^= *(DWORD*)(tmp+4); + Src[0] ^= tmp[4]; + Src[1] ^= tmp[5]; + Src[2] ^= tmp[6]; + Src[3] ^= tmp[7]; +} + +static void decode_des_etc(BYTE *buf,int len,int type,int cycle) +{ + int lop,cnt=0; + if(cycle<3) cycle=3; + else if(cycle<5) cycle++; + else if(cycle<7) cycle+=9; + else cycle+=15; + + for(lop=0;lop*8<len;lop++,buf+=8) { + if(lop<20 || (type==0 && lop%cycle==0)){ // des + BitConvert(buf,BitSwapTable1); + BitConvert4(buf); + BitConvert(buf,BitSwapTable2); + } else { + if(cnt==7 && type==0){ + int a; + BYTE tmp[8]; + *(DWORD*)tmp = *(DWORD*)buf; + *(DWORD*)(tmp+4) = *(DWORD*)(buf+4); + cnt=0; + buf[0]=tmp[3]; + buf[1]=tmp[4]; + buf[2]=tmp[6]; + buf[3]=tmp[0]; + buf[4]=tmp[1]; + buf[5]=tmp[2]; + buf[6]=tmp[5]; + a=tmp[7]; + if(a==0x00) a=0x2b; + else if(a==0x2b) a=0x00; + else if(a==0x01) a=0x68; + else if(a==0x68) a=0x01; + else if(a==0x48) a=0x77; + else if(a==0x77) a=0x48; + else if(a==0x60) a=0xff; + else if(a==0xff) a=0x60; + else if(a==0x6c) a=0x80; + else if(a==0x80) a=0x6c; + else if(a==0xb9) a=0xc0; + else if(a==0xc0) a=0xb9; + else if(a==0xeb) a=0xfe; + else if(a==0xfe) a=0xeb; + buf[7]=a; + } + cnt++; + } + } +} +/*========================================== + * Grf data decode sub : zip + *------------------------------------------ + */ int decode_zip(unsigned char *dest, unsigned long* destLen, const unsigned char* source, unsigned long sourceLen) { z_stream stream; @@ -67,3 +317,630 @@ int encode_zip(unsigned char *dest, unsigned long* destLen, const unsigned char* err = deflateEnd(&stream); return err; } + +unsigned long grfio_crc32 (const unsigned char *buf, unsigned int len) +{ + return crc32(crc32(0L, Z_NULL, 0), buf, len); +} + +/*********************************************************** + *** File List Subroutines *** + ***********************************************************/ + +/*========================================== + * File List : Hash make + *------------------------------------------ + */ +static int filehash(unsigned char *fname) +{ + unsigned int hash=0; + while(*fname) { + hash = ((hash<<1)+(hash>>7)*9+tolower(*fname)); + fname++; + } + return hash & 255; +} + +/*========================================== + * File List : Hash initalize + *------------------------------------------ + */ +static void hashinit(void) +{ + int lop; + for (lop = 0; lop < 256; lop++) + filelist_hash[lop] = -1; +} + +/*========================================== + * File List : File find + *------------------------------------------ + */ +static FILELIST *filelist_find(char *fname) +{ + int hash; + + if (!filelist) + return NULL; + + for (hash = filelist_hash[filehash((unsigned char *) fname)]; hash >= 0; hash = filelist[hash].next) { + if(strcmpi(filelist[hash].fn, fname) == 0) + break; + } + + return (hash >= 0) ? &filelist[hash] : NULL; +} + +char *grfio_find_file(char *fname){ + FILELIST *filelist = filelist_find(fname); + if (!filelist) return NULL; + return (!filelist->fnd?filelist->fn:filelist->fnd); +} + +/*========================================== + * File List : Filelist add + *------------------------------------------ + */ +#define FILELIST_ADDS 1024 // number increment of file lists ` + +static FILELIST* filelist_add(FILELIST *entry) +{ + int hash; + + if (filelist_entrys >= FILELIST_LIMIT) { + ShowFatalError("GRF filelist limit reached (filelist_add)!\n"); + exit(1); + } + + if (filelist_entrys >= filelist_maxentry) { + filelist = (FILELIST *)aRealloc(filelist, (filelist_maxentry + FILELIST_ADDS) * sizeof(FILELIST)); + malloc_tsetdword(filelist + filelist_maxentry, '\0', FILELIST_ADDS * sizeof(FILELIST)); + filelist_maxentry += FILELIST_ADDS; + } + + memcpy (&filelist[filelist_entrys], entry, sizeof(FILELIST)); + + hash = filehash((unsigned char *) entry->fn); + filelist[filelist_entrys].next = filelist_hash[hash]; + filelist_hash[hash] = filelist_entrys; + + filelist_entrys++; + + return &filelist[filelist_entrys - 1]; +} + +static FILELIST* filelist_modify(FILELIST *entry) +{ + FILELIST *fentry; + if ((fentry = filelist_find(entry->fn)) != NULL) { + int tmp = fentry->next; + memcpy(fentry, entry, sizeof(FILELIST)); + fentry->next = tmp; + } else { + fentry = filelist_add(entry); + } + return fentry; +} + +/*========================================== + * File List : filelist size adjust + *------------------------------------------ + */ +static void filelist_adjust(void) +{ + if (filelist != NULL) { + if (filelist_maxentry > filelist_entrys) { + filelist = (FILELIST *)aRealloc( + filelist, filelist_entrys * sizeof(FILELIST)); + filelist_maxentry = filelist_entrys; + } + } +} + +/*********************************************************** + *** Grfio Sobroutines *** + ***********************************************************/ + +/*========================================== + * Grfio : Resource file size get + *------------------------------------------ + */ +int grfio_size(char *fname) +{ + FILELIST *entry; + + entry = filelist_find(fname); + + if (entry == NULL || entry->gentry < 0) { // LocalFileCheck + char lfname[256], *p; + FILELIST lentry; + struct stat st; + + sprintf(lfname, "%s%s", data_dir, fname); + + for (p = &lfname[0]; *p != 0; p++) + if (*p=='\\') *p = '/'; // * At the time of Unix + + if (stat(lfname, &st) == 0) { + strncpy(lentry.fn, fname, sizeof(lentry.fn) - 1); + lentry.fnd = NULL; + lentry.declen = st.st_size; + lentry.gentry = 0; // 0:LocalFile + entry = filelist_modify(&lentry); + } else if (entry == NULL) { + ShowError("%s not found (grfio_size)\n", fname); + //exit(1); + return -1; + } + } + return entry->declen; +} + +/*========================================== + * Grfio : Resource file read & size get + *------------------------------------------ + */ +void* grfio_reads(char *fname, int *size) +{ + FILE *in; + FILELIST *entry; + unsigned char *buf2 = NULL; + + entry = filelist_find(fname); + + if (entry == NULL || entry->gentry <= 0) { // LocalFileCheck + char lfname[256], *p; + FILELIST lentry; + + sprintf(lfname, "%s%s", data_dir, fname); + + for (p = &lfname[0]; *p != 0; p++) + if (*p == '\\') *p = '/'; // * At the time of Unix + + in = fopen(lfname, "rb"); + if (in != NULL) { + if (entry != NULL && entry->gentry == 0) { + lentry.declen = entry->declen; + } else { + fseek(in,0,2); // SEEK_END + lentry.declen = ftell(in); + } + fseek(in,0,0); // SEEK_SET + buf2 = (unsigned char *)aMallocA(lentry.declen + 1024); + fread(buf2, 1, lentry.declen, in); + fclose(in); + strncpy(lentry.fn, fname, sizeof(lentry.fn) - 1); + lentry.fnd = NULL; + lentry.gentry = 0; // 0:LocalFile + entry = filelist_modify(&lentry); + } else { + if (entry != NULL && entry->gentry < 0) { + entry->gentry = -entry->gentry; // local file checked + } else { + ShowError("%s not found (grfio_reads - local file %s)\n", fname, lfname); + return NULL; + } + } + } + if (entry != NULL && entry->gentry > 0) { // Archive[GRF] File Read + char *gfname = gentry_table[entry->gentry - 1]; + in = fopen(gfname, "rb"); + if(in != NULL) { + unsigned char *buf = (unsigned char *)aMallocA(entry->srclen_aligned + 1024); + fseek(in, entry->srcpos, 0); + fread(buf, 1, entry->srclen_aligned, in); + fclose(in); + buf2 = (unsigned char *)aMallocA(entry->declen + 1024); + if (entry->type == 1 || entry->type == 3 || entry->type == 5) { + uLongf len; + if (entry->cycle >= 0) + decode_des_etc(buf, entry->srclen_aligned, entry->cycle == 0, entry->cycle); + len = entry->declen; + decode_zip(buf2, &len, buf, entry->srclen); + if (len != entry->declen) { + ShowError("decode_zip size miss match err: %d != %d\n", (int)len, entry->declen); + aFree(buf); + aFree(buf2); + return NULL; + } + } else { + memcpy(buf2, buf, entry->declen); + } + aFree(buf); + } else { + ShowError("%s not found (grfio_reads - grf file %s)\n", fname, gfname); + return NULL; + } + } + if (size != NULL && entry != NULL) + *size = entry->declen; + + return buf2; +} + +/*========================================== + * Resource filename decode + *------------------------------------------ + */ +static char * decode_filename(unsigned char *buf,int len) +{ + int lop; + for(lop=0;lop<len;lop+=8) { + NibbleSwap(&buf[lop],8); + BitConvert(&buf[lop],BitSwapTable1); + BitConvert4(&buf[lop]); + BitConvert(&buf[lop],BitSwapTable2); + } + return (char*)buf; +} + +/*========================================== + * Grfio : Entry table read + *------------------------------------------ + */ +static int grfio_entryread(char *gfname,int gentry) +{ + FILE *fp; + long grf_size,list_size; + unsigned char grf_header[0x2e]; + int lop,entry,entrys,ofs,grf_version; + char *fname; + unsigned char *grf_filelist; + + fp = fopen(gfname, "rb"); + if (fp == NULL) { + ShowWarning("GRF Data File not found: '"CL_WHITE"%s"CL_RESET"'.\n",gfname); + return 1; // 1:not found error + } + + fseek(fp,0,2); // SEEK_END + grf_size = ftell(fp); + fseek(fp,0,0); // SEEK_SET + fread(grf_header,1,0x2e,fp); + if (strcmp((const char *) grf_header,"Master of Magic") || + fseek(fp,getlong(grf_header+0x1e),1)) // SEEK_CUR + { + fclose(fp); + ShowError("GRF %s read error\n",gfname); + return 2; // 2:file format error + } + + grf_version = getlong(grf_header+0x2a) >> 8; + + if (grf_version == 0x01) { //****** Grf version 01xx ****** + list_size = grf_size - ftell(fp); + grf_filelist = (unsigned char *) aMallocA(list_size); + /*if (grf_filelist == NULL){ + fclose(fp); + ShowError("out of memory : grf_filelist\n"); + return 3; // 3:memory alloc error + }*/ + fread(grf_filelist,1,list_size,fp); + fclose(fp); + + entrys = getlong(grf_header+0x26) - getlong(grf_header+0x22) - 7; + + // Get an entry + for (entry = 0,ofs = 0; entry < entrys; entry++) { + int ofs2, srclen, srccount, type; + char *period_ptr; + FILELIST aentry; + + ofs2 = ofs+getlong(grf_filelist+ofs)+4; + type = grf_filelist[ofs2+12]; + if (type != 0) { // Directory Index ... skip + fname = decode_filename(grf_filelist+ofs+6, grf_filelist[ofs]-6); + if (strlen(fname) > sizeof(aentry.fn) - 1) { + ShowFatalError("GRF file name %s is too long\n", fname); + aFree(grf_filelist); + exit(1); + } + srclen = 0; + if ((period_ptr = strrchr(fname, '.')) != NULL) { + for(lop = 0; lop < 4; lop++) { + if (strcmpi(period_ptr, ".gnd\0.gat\0.act\0.str"+lop*5) == 0) + break; + } + srclen = getlong(grf_filelist+ofs2) - getlong(grf_filelist+ofs2+8) - 715; + if(lop == 4) { + for(lop = 10, srccount = 1; srclen >= lop; lop = lop * 10, srccount++); + } else { + srccount = 0; + } + } else { + srccount = 0; + } + + aentry.srclen = srclen; + aentry.srclen_aligned = getlong(grf_filelist+ofs2+4)-37579; + aentry.declen = getlong(grf_filelist+ofs2+8); + aentry.srcpos = getlong(grf_filelist+ofs2+13)+0x2e; + aentry.cycle = srccount; + aentry.type = type; + strncpy(aentry.fn, fname,sizeof(aentry.fn)-1); + aentry.fnd = NULL; +#ifdef GRFIO_LOCAL + aentry.gentry = -(gentry+1); // As Flag for making it a negative number carrying out the first time LocalFileCheck +#else + aentry.gentry = gentry+1; // With no first time LocalFileCheck +#endif + filelist_modify(&aentry); + } + ofs = ofs2 + 17; + } + aFree(grf_filelist); + + } else if (grf_version == 0x02) { //****** Grf version 02xx ****** + unsigned char eheader[8]; + unsigned char *rBuf; + uLongf rSize, eSize; + + fread(eheader,1,8,fp); + rSize = getlong(eheader); // Read Size + eSize = getlong(eheader+4); // Extend Size + + if ((long)rSize > grf_size-ftell(fp)) { // Warning fix [Lance] + fclose(fp); + ShowError("Illegal data format : grf compress entry size\n"); + return 4; + } + + rBuf = (unsigned char *)aMallocA(rSize); // Get a Read Size + /*if (rBuf==NULL) { + fclose(fp); + ShowError("out of memory : grf compress entry table buffer\n"); + return 3; + }*/ + grf_filelist = (unsigned char *)aMallocA(eSize); // Get a Extend Size + /*if (grf_filelist==NULL) { + aFree(rBuf); + fclose(fp); + ShowError("out of memory : grf extract entry table buffer\n"); + return 3; + }*/ + fread(rBuf,1,rSize,fp); + fclose(fp); + decode_zip(grf_filelist, &eSize, rBuf, rSize); // Decode function + list_size = eSize; + aFree(rBuf); + + entrys = getlong(grf_header+0x26) - 7; + + // Get an entry + for(entry = 0, ofs = 0; entry < entrys; entry++){ + int ofs2, srclen, srccount, type; + FILELIST aentry; + + fname = (char*)(grf_filelist+ofs); + if (strlen(fname) > sizeof(aentry.fn)-1) { + ShowFatalError("GRF file name %s is too long\n", fname); + aFree(grf_filelist); + exit(1); + } + //ofs2 = ofs+strlen((char*)(grf_filelist+ofs))+1; + ofs2 = ofs + strlen(fname)+1; + type = grf_filelist[ofs2+12]; + if (type == 1 || type == 3 || type == 5) { + srclen = getlong(grf_filelist+ofs2); + if (grf_filelist[ofs2+12] == 3) { + for (lop = 10, srccount = 1; srclen >= lop; lop = lop * 10, srccount++); + } else if (grf_filelist[ofs2+12] == 5) { + srccount = 0; + } else { // if (grf_filelist[ofs2+12]==1) { + srccount = -1; + } + + aentry.srclen = srclen; + aentry.srclen_aligned = getlong(grf_filelist+ofs2+4); + aentry.declen = getlong(grf_filelist+ofs2+8); + aentry.srcpos = getlong(grf_filelist+ofs2+13)+0x2e; + aentry.cycle = srccount; + aentry.type = type; + strncpy(aentry.fn,fname,sizeof(aentry.fn)-1); + aentry.fnd = NULL; +#ifdef GRFIO_LOCAL + aentry.gentry = -(gentry+1); // As Flag for making it a negative number carrying out the first time LocalFileCheck +#else + aentry.gentry = gentry+1; // With no first time LocalFileCheck +#endif + filelist_modify(&aentry); + } + ofs = ofs2 + 17; + } + aFree(grf_filelist); + + } else { //****** Grf Other version ****** + fclose(fp); + ShowError("GRF version %04x not supported\n",getlong(grf_header+0x2a)); + return 4; + } + + filelist_adjust(); // Unnecessary area release of filelist + + return 0; // 0:no error +} + +/*========================================== + * Grfio : Resource file check + *------------------------------------------ + */ +static void grfio_resourcecheck(void) +{ + char w1[256], w2[256], src[256], dst[256], restable[256], line[256]; + char *ptr, *buf; + FILELIST *entry; + int size, i = 0; + FILE *fp; + + // read resnametable from data directory and return if successful + sprintf(restable, "%sdata\\resnametable.txt", data_dir); + for (ptr = &restable[0]; *ptr != 0; ptr++) + if (*ptr == '\\') *ptr = '/'; + + fp = fopen(restable,"rb"); + if (fp) { + while (fgets(line, sizeof(line) - 1, fp)) { + if (sscanf(line, "%[^#]#%[^#]#", w1, w2) == 2 && + // we only need the map names and text files + (strstr(w2, ".gat") || strstr(w2, ".txt"))) + { + sprintf(src, "data\\%s", w1); + sprintf(dst, "data\\%s", w2); + entry = filelist_find(dst); + // create new entries reusing the original's info + if (entry != NULL) { + FILELIST fentry; + memcpy(&fentry, entry, sizeof(FILELIST)); + strncpy(fentry.fn, src, sizeof(fentry.fn) - 1); + fentry.fnd = grfio_alloc_ptr(dst); + filelist_modify(&fentry); + i++; + } + } + } + fclose(fp); + ShowStatus("Done reading '"CL_WHITE"%d"CL_RESET"' entries in '"CL_WHITE"%s"CL_RESET"'.\n", i, "resnametable.txt"); + return; // we're done here! + } + + // read resnametable from loaded GRF's, only if it cannot be + // loaded from the data directory + buf = (char *)grfio_reads("data\\resnametable.txt", &size); + if (buf) { + buf[size] = 0; + ptr = buf; + + while (ptr - buf < size) { + if (sscanf(ptr, "%[^#]#%[^#]#", w1, w2) == 2 && + (strstr(w2, ".gat") || strstr(w2, ".txt"))) + { + sprintf(src, "data\\%s", w1); + sprintf(dst, "data\\%s", w2); + entry = filelist_find(dst); + if (entry != NULL) { + FILELIST fentry; + memcpy(&fentry, entry, sizeof(FILELIST)); + strncpy(fentry.fn, src, sizeof(fentry.fn) - 1); + fentry.fnd = grfio_alloc_ptr(dst); + filelist_modify(&fentry); + i++; + } + } + ptr = strchr(ptr,'\n'); // Next line + if (!ptr) break; + ptr++; + } + aFree(buf); + ShowStatus("Done reading '"CL_WHITE"%d"CL_RESET"' entries in '"CL_WHITE"%s"CL_RESET"'.\n", i, "data\\resnametable.txt"); + return; + } + + //ShowWarning("GRF: No resnametable found! Panic?\n"); +} + +/*========================================== + * Grfio : Resource add + *------------------------------------------ + */ +#define GENTRY_ADDS 4 // The number increment of gentry_table entries + +static int grfio_add(char *fname) +{ + grfio_alloc_ptr(fname); + + return grfio_entryread(fname, gentry_entrys - 1); +} + +char *grfio_alloc_ptr(char *fname) +{ + int len; + char *buf; + + if (gentry_entrys >= GENTRY_LIMIT) { + ShowFatalError("gentrys limit : grfio_add\n"); + exit(1); + } + + if (gentry_entrys >= gentry_maxentry) { + gentry_maxentry += GENTRY_ADDS; + gentry_table = (char**)aRealloc(gentry_table, gentry_maxentry * sizeof(char*)); + malloc_tsetdword(gentry_table + (gentry_maxentry - GENTRY_ADDS), 0, sizeof(char*) * GENTRY_ADDS); + } + len = strlen( fname ); + buf = (char*)aMallocA(len + 1); + strcpy(buf, fname); + gentry_table[gentry_entrys++] = buf; + + return buf; +} + +/*========================================== + * Grfio : Finalize + *------------------------------------------ + */ +void grfio_final(void) +{ + if (filelist != NULL) + aFree(filelist); + + filelist_entrys = filelist_maxentry = 0; + + if (gentry_table != NULL) { + int lop; + for (lop = 0; lop < gentry_entrys; lop++) { + if (gentry_table[lop] != NULL) + aFree(gentry_table[lop]); + } + aFree(gentry_table); + } + gentry_table = NULL; + gentry_entrys = gentry_maxentry = 0; +} + +/*========================================== + * Grfio : Initialize + *------------------------------------------ + */ +void grfio_init(char *fname) +{ + FILE *data_conf; + char line[1024], w1[1024], w2[1024]; + int result = 0; + + hashinit(); // hash table initialization + + data_conf = fopen(fname, "r"); + // It will read, if there is grf-files.txt. + if (data_conf) { + while(fgets(line, sizeof(line) - 1, data_conf)) { + if (line[0] == '/' && line[1] == '/') + continue; + if (sscanf(line, "%[^:]: %[^\r\n]", w1, w2) != 2) + continue; + // Entry table reading + if(strcmp(w1, "grf") == 0 || + strcmp(w1, "data") == 0 || // Primary data file + strcmp(w1, "sdata") == 0 || // Sakray data file + strcmp(w1, "adata") == 0) // Alpha version data file + // increment if successfully loaded + result += (grfio_add(w2) == 0); + else if(strcmp(w1,"data_dir") == 0) // Data directory + strcpy(data_dir, w2); + } + + fclose(data_conf); + ShowStatus("Done reading '"CL_WHITE"%s"CL_RESET"'.\n", fname); + } // end of reading grf-files.txt + + if (result == 0) { + ShowInfo("No grf's loaded.. using default data directory\n"); + //exit(1); // It ends, if a resource cannot read one. + } + + // Unnecessary area release of filelist + filelist_adjust(); + // Resource check + grfio_resourcecheck(); + + return; +} diff --git a/src/common/grfio.h b/src/common/grfio.h index ce2b75150..408dafd1b 100644 --- a/src/common/grfio.h +++ b/src/common/grfio.h @@ -4,7 +4,19 @@ #ifndef _GRFIO_H_ #define _GRFIO_H_ +void grfio_init(char*); // GRFIO Initialize +void grfio_final(void); // GRFIO Finalize +void* grfio_reads(char*,int*); // GRFIO data file read & size get +char *grfio_find_file(char *fname); +char *grfio_alloc_ptr(char *fname); + +#define grfio_read(fn) grfio_reads(fn, NULL) + +int grfio_size(char*); // GRFIO data file size get +unsigned long grfio_crc32(const unsigned char *buf, unsigned int len); + int decode_zip(unsigned char *dest, unsigned long* destLen, const unsigned char* source, unsigned long sourceLen); int encode_zip(unsigned char *dest, unsigned long* destLen, const unsigned char* source, unsigned long sourceLen); +int deflate_file (const char *source, const char *filename); #endif /* _GRFIO_H_ */ |