diff options
Diffstat (limited to 'src/common/grfio.c')
| -rw-r--r-- | src/common/grfio.c | 953 |
1 files changed, 953 insertions, 0 deletions
diff --git a/src/common/grfio.c b/src/common/grfio.c new file mode 100644 index 000000000..ff01b6e76 --- /dev/null +++ b/src/common/grfio.c @@ -0,0 +1,953 @@ +/********************************************************************* + * + * 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 + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <sys/stat.h> + +#include <zlib.h> + +#include "utils.h" +#include "grfio.h" +#include "mmo.h" + +#ifdef MEMWATCH +#include "memwatch.h" +#endif + +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] = ""; // "../"; + +// accessor to data_file,adata_file,sdata_file +char *grfio_setdatafile(const char *str){ strcpy(data_file,str); return data_file; } +char *grfio_setadatafile(const char *str){ strcpy(adata_file,str); return adata_file; } +char *grfio_setsdatafile(const char *str){ strcpy(sdata_file,str); return sdata_file; } + +//---------------------------- +// file entry table struct +//---------------------------- +typedef struct { + int srclen; // compressed size + int srclen_aligned; // + int declen; // original size + int srcpos; + short next; + char cycle; + char type; + char fn[128-4*5]; // file name + 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 127 +#define FILELIST_LIMIT 32768 // temporary maximum, and a theory top maximum are 2G. + +static FILELIST *filelist; +static int filelist_entrys; +static int filelist_maxentry; + +static char **gentry_table; +static int gentry_entrys; +static int gentry_maxentry; + +//---------------------------- +// 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; +} + +/*========================================== + * 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; + 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); +} + +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); +} + +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 + *------------------------------------------ + */ +static int decode_zip(Bytef* dest, uLongf* destLen, const Bytef* source, uLong sourceLen) +{ + z_stream stream; + int err; + + stream.next_in = (Bytef*)source; + stream.avail_in = (uInt)sourceLen; + /* Check for source > 64K on 16-bit machine: */ + if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; + + stream.next_out = dest; + stream.avail_out = (uInt)*destLen; + if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; + + stream.zalloc = (alloc_func)0; + stream.zfree = (free_func)0; + + err = inflateInit(&stream); + if (err != Z_OK) return err; + + err = inflate(&stream, Z_FINISH); + if (err != Z_STREAM_END) { + inflateEnd(&stream); + return err == Z_OK ? Z_BUF_ERROR : err; + } + *destLen = stream.total_out; + + err = inflateEnd(&stream); + return err; +} +/*********************************************************** + *** File List Sobroutines *** + ***********************************************************/ + +/*========================================== + * 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 + *------------------------------------------ + */ +FILELIST *filelist_find(char *fname) +{ + int hash; + + for(hash=filelist_hash[filehash(fname)];hash>=0;hash=filelist[hash].next) { + if(strcmpi(filelist[hash].fn,fname)==0) + break; + } + + return (hash>=0)? &filelist[hash] : NULL; +} + +/*========================================== + * 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) { + printf("filelist limit : filelist_add\n"); + exit(1); + } + + if (filelist_entrys>=filelist_maxentry) { + FILELIST *new_filelist = (FILELIST*)realloc( + (void*)filelist, (filelist_maxentry+FILELIST_ADDS)*sizeof(FILELIST) ); + if (new_filelist != NULL) { + filelist = new_filelist; + memset(filelist + filelist_maxentry, '\0', + FILELIST_ADDS * sizeof(FILELIST)); + filelist_maxentry += FILELIST_ADDS; + } else { + printf("out of memory : filelist_add\n"); + exit(1); + } + } + + memcpy( &filelist[filelist_entrys], entry, sizeof(FILELIST) ); + + hash = filehash(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 *new_filelist = (FILELIST*)realloc( + (void*)filelist,filelist_entrys*sizeof(FILELIST) ); + if (new_filelist != NULL) { + filelist = new_filelist; + filelist_maxentry = filelist_entrys; + } else { + printf("out of memory : filelist\n"); + exit(1); + } + } + } +} + +/*********************************************************** + *** Grfio Sobroutines *** + ***********************************************************/ +/*========================================== + * Grfio : Resnametable replace + *------------------------------------------ + */ +char* grfio_resnametable(char* fname, char *lfname) +{ + FILE *fp; + char *p; + char w1[256],w2[256],restable[256],line[512]; + + sprintf(restable,"%sdata\\resnametable.txt",data_dir); + + for(p=&restable[0];*p!=0;p++) if (*p=='\\') *p = '/'; + + fp = fopen(restable,"rb"); + if(fp==NULL) { + printf("%s not found (grfio_resnametable)\n",restable); + return NULL; // 1:not found error + } + + while(fgets(line,508,fp)){ + if((sscanf(line,"%[^#]#%[^#]#",w1,w2)==2) && (sscanf(fname,"%*5s%s",lfname)==1) && (!strcmpi(w1,lfname))){ + sprintf(lfname,"data\\%s",w2); + fclose(fp); + return lfname; + } + } + fclose(fp); + return fname; + +} + +/*========================================== + * 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],rname[256],*p; + FILELIST lentry; + struct stat st; + + if(strcmp(data_dir, "") != 0) { + //printf("%s\t",fname); + sprintf(rname,"%s",grfio_resnametable(fname,lfname)); + //printf("%s\n",rname); + sprintf(lfname,"%s%s",data_dir,rname); + //printf("%s\n",lfname); + } + + 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.declen = st.st_size; + lentry.gentry = 0; // 0:LocalFile + entry = filelist_modify(&lentry); + } else if (entry==NULL) { + printf("%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 = NULL; + unsigned char *buf=NULL,*buf2=NULL; + char *gfname; + FILELIST *entry; + + entry = filelist_find(fname); + + if (entry==NULL || entry->gentry<=0) { // LocalFileCheck + char lfname[256],rname[256],*p; + FILELIST lentry; + + strncpy(lfname,fname,255); + sprintf(rname,"%s",grfio_resnametable(fname,lfname)); + sprintf(lfname,"%s%s",data_dir,rname); + //printf("%s\n",lfname); + + 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 = calloc(lentry.declen+1024, 1); + if (buf2==NULL) { + printf("file read memory allocate error : declen\n"); + goto errret; + } + fread(buf2,1,lentry.declen,in); + fclose(in); in = NULL; + strncpy( lentry.fn, fname, sizeof(lentry.fn)-1 ); + lentry.gentry = 0; // 0:LocalFile + entry = filelist_modify(&lentry); + } else { + if (entry!=NULL && entry->gentry<0) { + entry->gentry = -entry->gentry; // local file checked + } else { + printf("%s not found (grfio_reads)\n", fname); + //goto errret; + free(buf2); + return NULL; + } + } + } + if (entry!=NULL && entry->gentry>0) { // Archive[GRF] File Read + buf = calloc(entry->srclen_aligned+1024, 1); + if (buf==NULL) { + printf("file read memory allocate error : srclen_aligned\n"); + goto errret; + } + gfname = gentry_table[entry->gentry-1]; + in = fopen(gfname,"rb"); + if(in==NULL) { + printf("%s not found (grfio_reads)\n",gfname); + //goto errret; + free(buf); + return NULL; + } + fseek(in,entry->srcpos,0); + fread(buf,1,entry->srclen_aligned,in); + fclose(in); + buf2=calloc(entry->declen+1024, 1); + if (buf2==NULL) { + printf("file decode memory allocate error\n"); + goto errret; + } + 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) { + printf("decode_zip size miss match err: %d != %d\n",(int)len,entry->declen); + goto errret; + } + } else { + memcpy(buf2,buf,entry->declen); + } + free(buf); + } + if (size!=NULL && entry!=NULL) + *size = entry->declen; + return buf2; +errret: + if (buf!=NULL) free(buf); + if (buf2!=NULL) free(buf2); + if (in!=NULL) fclose(in); + exit(1); //return NULL; +} + +/*========================================== + * Grfio : Resource file read + *------------------------------------------ + */ +void* grfio_read(char *fname) +{ + return grfio_reads(fname,NULL); +} + +/*========================================== + * Resource filename decode + *------------------------------------------ + */ +static unsigned 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 buf; +} + +/*========================================== + * Grfio : Entry table read + *------------------------------------------ + */ +static int grfio_entryread(char *gfname,int gentry) +{ + FILE *fp; + int grf_size,list_size; + unsigned char grf_header[0x2e]; + int lop,entry,entrys,ofs,grf_version; + unsigned char *fname; + unsigned char *grf_filelist; + + fp = fopen(gfname,"rb"); + if(fp==NULL) { + printf("%s not found (grfio_entryread)\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(grf_header,"Master of Magic") || fseek(fp,getlong(grf_header+0x1e),1)){ // SEEK_CUR + fclose(fp); + printf("%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 = calloc(list_size, 1); + if(grf_filelist==NULL){ + fclose(fp); + printf("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){ + printf("file name too long : %s\n",fname); + free(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); +#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; + } + free(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 (rSize > grf_size-ftell(fp)) { + fclose(fp); + printf("Illegal data format : grf compress entry size\n"); + return 4; + } + + rBuf = calloc( rSize , 1); // Get a Read Size + if (rBuf==NULL) { + fclose(fp); + printf("out of memory : grf compress entry table buffer\n"); + return 3; + } + grf_filelist = calloc( eSize , 1); // Get a Extend Size + if (grf_filelist==NULL) { + free(rBuf); + fclose(fp); + printf("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; + free(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 = grf_filelist+ofs; + if (strlen(fname)>sizeof(aentry.fn)-1) { + printf("grf : file name too long : %s\n",fname); + free(grf_filelist); + exit(1); + } + ofs2 = ofs+strlen(grf_filelist+ofs)+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); +#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; + } + free(grf_filelist); + + } else { //****** Grf Other version ****** + fclose(fp); + printf("not support grf versions : %04x\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() +{ + int size; + unsigned char *buf,*ptr; + char w1[256],w2[256],src[256],dst[256]; + FILELIST *entry; + + buf=grfio_reads("data\\resnametable.txt",&size); + buf[size] = 0; + + for(ptr=buf;ptr-buf<size;) { + if(sscanf(ptr,"%[^#]#%[^#]#",w1,w2)==2){ + if(strstr(w2,"bmp")){ + sprintf(src,"data\\texture\\%s",w1); + sprintf(dst,"data\\texture\\%s",w2); + } else { + 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 ); + filelist_modify(&fentry); + } else { + //printf("file not found in data.grf : %s < %s\n",dst,src); + } + } + ptr = strchr(ptr,'\n'); // Next line + if (!ptr) break; + ptr++; + } + free(buf); + filelist_adjust(); // Unnecessary area release of filelist +} + +/*========================================== + * Grfio : Resource add + *------------------------------------------ + */ +#define GENTRY_ADDS 16 // The number increment of gentry_table entries + +int grfio_add(char *fname) +{ + int len,result; + char *buf; + + if (gentry_entrys>=GENTRY_LIMIT) { + printf("gentrys limit : grfio_add\n"); + exit(1); + } + + printf("%s file reading...\n",fname); + + if (gentry_entrys>=gentry_maxentry) { + char **new_gentry = (char**)realloc( + (void*)gentry_table,(gentry_maxentry+GENTRY_ADDS)*sizeof(char*) ); + if (new_gentry!=NULL) { + int lop; + gentry_table = new_gentry; + gentry_maxentry += GENTRY_ADDS; + for(lop=gentry_entrys;lop<gentry_maxentry;lop++) + gentry_table[lop] = NULL; + } else { + printf("out of memory : grfio_add\n"); + exit(1); + } + } + len = strlen( fname ); + buf = calloc(len+1, 1); + if (buf==NULL) { + printf("out of memory : gentry\n"); + exit(1); + } + strcpy( buf, fname ); + gentry_table[gentry_entrys++] = buf; + + result = grfio_entryread(fname,gentry_entrys-1); + + if (result==0) { + // Resource check + grfio_resourcecheck(); + } + + return result; +} + +/*========================================== + * Grfio : Finalize + *------------------------------------------ + */ +void grfio_final(void) +{ + int lop; + + if (filelist!=NULL) free(filelist); + filelist = NULL; + filelist_entrys = filelist_maxentry = 0; + + if (gentry_table!=NULL) { + for(lop=0;lop<gentry_entrys;lop++) { + if (gentry_table[lop]!=NULL) { + free(gentry_table[lop]); + } + } + free(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, result2 = 0, result3 = 0, result4 = 0; + + data_conf = fopen(fname, "r"); + + // It will read, if there is grf-files.txt. + if (data_conf) { + while(fgets(line, 1020, data_conf)) { + if (sscanf(line, "%[^:]: %[^\r\n]", w1, w2) == 2) { + if(strcmp(w1, "data") == 0) + strcpy(data_file, w2); + else if(strcmp(w1, "sdata") == 0) + strcpy(sdata_file, w2); + else if(strcmp(w1, "adata") == 0) + strcpy(adata_file, w2); + else if(strcmp(w1,"data_dir") == 0) + strcpy(data_dir, w2); + } + } + + fclose(data_conf); + printf("read %s done\n",fname); + } // end of reading grf-files.txt + + hashinit(); // hash table initialization + + filelist = NULL; filelist_entrys = filelist_maxentry = 0; + gentry_table = NULL; gentry_entrys = gentry_maxentry = 0; + atexit(grfio_final); // End processing definition + + // Entry table reading + + if (strcmp(data_file, "") != 0) // If data directive exists in grf-files.txt (i.e. data_file is not equal to "") + result = grfio_add(data_file); // Primary data file + + if (strcmp(sdata_file, "") != 0) // If sdata directive exists in grf-files.txt (i.e. sdata_file is not equal to "") + result2 = grfio_add(sdata_file); // Sakray data file + + if (strcmp(adata_file, "") != 0) // If data directive exists in grf-files.txt (i.e. adata_file is not equal to "") + result3 = grfio_add(adata_file); // Alpha version data file + + if (strcmp(data_dir, "") == 0) // Id data_dir doesn't exist + result4 = 1; // Data directory + + if (result != 0 && result2 != 0 && result3 != 0 && result4 != 0) { + printf("not grf file readed exit!!\n"); + exit(1); // It ends, if a resource cannot read one. + } +} |