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| author | (no author) <(no author)@54d463be-8e91-2dee-dedb-b68131a5f0ec> | 2004-11-04 23:25:09 +0000 |
|---|---|---|
| committer | (no author) <(no author)@54d463be-8e91-2dee-dedb-b68131a5f0ec> | 2004-11-04 23:25:09 +0000 |
| commit | 195dffc20af1fb32c7e4119988911b72955aeabc (patch) | |
| tree | b60d2a5e72d64dc5fc21eb9ce0962631e774a4c9 /src/common/grfio.c | |
| download | hercules-195dffc20af1fb32c7e4119988911b72955aeabc.tar.gz hercules-195dffc20af1fb32c7e4119988911b72955aeabc.tar.bz2 hercules-195dffc20af1fb32c7e4119988911b72955aeabc.tar.xz hercules-195dffc20af1fb32c7e4119988911b72955aeabc.zip | |
git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/athena@2 54d463be-8e91-2dee-dedb-b68131a5f0ec
Diffstat (limited to 'src/common/grfio.c')
| -rw-r--r-- | src/common/grfio.c | 948 |
1 files changed, 948 insertions, 0 deletions
diff --git a/src/common/grfio.c b/src/common/grfio.c new file mode 100644 index 000000000..28389f5d8 --- /dev/null +++ b/src/common/grfio.c @@ -0,0 +1,948 @@ +/*********************************************************************
+ *
+ * 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\n",restable);
+ exit(1); // 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;
+
+ //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\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\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\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\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;
+
+ 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 (result != 0 && result2 != 0 && result3 != 0) {
+ printf("not grf file readed exit!!\n");
+ exit(1); // It ends, if a resource cannot read one.
+ }
+}
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