diff options
Diffstat (limited to 'src/common/grfio.c')
| -rw-r--r-- | src/common/grfio.c | 1146 |
1 files changed, 1146 insertions, 0 deletions
diff --git a/src/common/grfio.c b/src/common/grfio.c new file mode 100644 index 000000000..a3907a7f2 --- /dev/null +++ b/src/common/grfio.c @@ -0,0 +1,1146 @@ +// 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
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <sys/stat.h>
+
+#include "grfio.h"
+#include "../common/mmo.h"
+#include "../common/showmsg.h"
+#include "../common/malloc.h"
+#include "../zlib/unzip.h"
+
+#define CHUNK 16384
+
+#ifdef __WIN32
+ #include "../zlib/zlib.h"
+ #include "../zlib/iowin32.h"
+#else
+ #include <zlib.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] = ""; // "../";
+
+//----------------------------
+// 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 65536 // temporary maximum, and a theory top maximum are 2G.
+
+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;
+
+#define RESNAME_LIMIT 1024
+#define RESNAME_ADDS 16
+
+typedef struct resname_entry {
+ char src[64];
+ char dst[64];
+} Resname;
+static struct resname_entry *localresname = NULL;
+static int resname_entrys = 0;
+static int resname_maxentrys = 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;
+ memset(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;
+ 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 = (Bytef*) 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;
+}
+
+int encode_zip(unsigned char *dest, unsigned long* destLen, const unsigned char* source, unsigned long 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 = (Bytef*) 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 = deflateInit(&stream,Z_DEFAULT_COMPRESSION);
+ if (err != Z_OK) return err;
+
+ err = deflate(&stream, Z_FINISH);
+ if (err != Z_STREAM_END) {
+ inflateEnd(&stream);
+ return err == Z_OK ? Z_BUF_ERROR : err;
+ }
+ *destLen = stream.total_out;
+
+ err = deflateEnd(&stream);
+ return err;
+}
+
+/*==========================================
+* Decompress from file source to file dest until stream ends or EOF.
+* inf() returns Z_OK on success, Z_MEM_ERROR if memory could not be
+* allocated for processing, Z_DATA_ERROR if the deflate data is
+* invalid or incomplete, Z_VERSION_ERROR if the version of zlib.h and
+* the version of the library linked do not match, or Z_ERRNO if there
+* is an error reading or writing the files.
+*
+* Version 1.2 9 November 2004 Mark Adler
+*------------------------------------------
+*/
+int decode_file (FILE *source, FILE *dest)
+{
+ int err;
+ unsigned have;
+ z_stream strm;
+ unsigned char in[CHUNK];
+ unsigned char out[CHUNK];
+
+ /* allocate inflate state */
+ strm.zalloc = Z_NULL;
+ strm.zfree = Z_NULL;
+ strm.opaque = Z_NULL;
+ strm.avail_in = 0;
+ strm.next_in = Z_NULL;
+
+ err = inflateInit(&strm);
+ if (err != Z_OK) return 0; //return err;
+
+ /* decompress until deflate stream ends or end of file */
+ do {
+ strm.avail_in = fread(in, 1, CHUNK, source);
+ if (ferror(source)) {
+ inflateEnd(&strm);
+ return 0;
+ }
+ if (strm.avail_in == 0)
+ break;
+ strm.next_in = in;
+
+ /* run inflate() on input until output buffer not full */
+ do {
+ strm.avail_out = CHUNK;
+ strm.next_out = out;
+ err = inflate(&strm, Z_NO_FLUSH);
+ Assert(err != Z_STREAM_ERROR); /* state not clobbered */
+ switch (err) {
+ case Z_NEED_DICT:
+ err = Z_DATA_ERROR; /* and fall through */
+ case Z_DATA_ERROR:
+ case Z_MEM_ERROR:
+ inflateEnd(&strm);
+ //return err;
+ return 0;
+ }
+ have = CHUNK - strm.avail_out;
+ if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
+ inflateEnd(&strm);
+ //return Z_ERRNO;
+ return 0;
+ }
+ } while (strm.avail_out == 0);
+ Assert(strm.avail_in == 0); /* all input will be used */
+
+ /* done when inflate() says it's done */
+ } while (err != Z_STREAM_END);
+
+ /* clean up and return */
+ inflateEnd(&strm);
+ return err == Z_STREAM_END ? 1 : 0;
+}
+
+/* ===================================
+* Unzips a file. 1: success, 0: error
+* Adapted from miniunz.c [Celest]
+* Version 1.01b, May 30th, 2004
+* Copyright (C) 1998-2004 Gilles Vollant
+* -------------------------------------
+*/
+int deflate_file (const char *source, const char *filename)
+{
+#ifdef _WIN32
+ zlib_filefunc_def ffunc;
+#endif
+ unzFile uf = NULL;
+ int err = UNZ_OK;
+ uInt size_buf = 8192;
+ FILE *fout = NULL;
+ void *buf;
+
+#ifdef _WIN32
+ fill_win32_filefunc(&ffunc);
+ uf = unzOpen2(source, &ffunc);
+#else
+ uf = unzOpen(source);
+#endif
+
+ if (uf == NULL) {
+ //printf("Cannot open %s\n", source);
+ return 0;
+ }
+ //printf("%s opened\n", source);
+
+ if (unzLocateFile(uf, filename, 0) != UNZ_OK) {
+ //printf("file %s not found in the zipfile\n", filename);
+ return 0;
+ }
+
+ err = unzOpenCurrentFilePassword(uf, NULL);
+ //if (err != UNZ_OK)
+ // printf("error %d with zipfile in unzOpenCurrentFilePassword\n", err);
+
+ fout = fopen(filename,"wb");
+ if (fout == NULL) {
+ //printf("error opening %s\n", filename);
+ return 0;
+ }
+
+ buf = (void *)aMalloc(size_buf);
+ do {
+ err = unzReadCurrentFile(uf, buf, size_buf);
+ if (err < 0) {
+ //printf("error %d with zipfile in unzReadCurrentFile\n", err);
+ break;
+ }
+ if (err > 0 &&
+ fwrite(buf, err, 1, fout)!=1)
+ {
+ //printf("error in writing extracted file\n");
+ err = UNZ_ERRNO;
+ break;
+ }
+ } while (err > 0);
+
+ if (fout) fclose(fout);
+
+ if (err == UNZ_OK) {
+ err = unzCloseCurrentFile (uf);
+ //if (err != UNZ_OK)
+ // printf("error %d with zipfile in unzCloseCurrentFile\n", err);
+ aFree(buf);
+ return (err == UNZ_OK);
+ }
+
+ unzCloseCurrentFile(uf); /* don't lose the error */
+
+ return 0;
+}
+
+unsigned long grfio_crc32 (const char *buf, unsigned int len)
+{
+ return crc32(crc32(0L, Z_NULL, 0), buf, len);
+}
+
+/***********************************************************
+ *** 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;
+
+ 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;
+}
+
+/*==========================================
+ * 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("filelist limit : filelist_add\n");
+ exit(1);
+ }
+
+ if (filelist_entrys >= filelist_maxentry) {
+ filelist = (FILELIST *)aRealloc(filelist, (filelist_maxentry + FILELIST_ADDS) * sizeof(FILELIST));
+ memset(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 : Local Resnametable replace
+ *------------------------------------------
+ */
+static void grfio_resnametable(char *src, char *dest)
+{
+ int lop;
+ if (localresname == NULL ||
+ sscanf(src, "%*5s%s", dest) < 1)
+ {
+ // if not found copy the unresolved name into buffer
+ strcpy(dest, src);
+ return;
+ }
+
+ for (lop = 0; lop < resname_entrys; lop++) {
+ if (strcmpi(localresname[lop].src, dest) == 0) {
+ sprintf(dest, "data\\%s", localresname[lop].dst);
+ return;
+ }
+ }
+
+ return;
+}
+
+/*==========================================
+ * Grfio : Local Resnametable Initialize
+ *------------------------------------------
+ */
+static void grfio_resnameinit (void)
+{
+ FILE *fp;
+ char *p;
+ // max length per entry is 34 in resnametable
+ char w1[64], w2[64], restable[256], line[256];
+
+ sprintf(restable, "%sdata\\resnametable.txt", data_dir);
+ for (p = &restable[0]; *p != 0; p++)
+ if (*p == '\\') *p = '/';
+
+ fp = fopen(restable,"rb");
+ if (fp == NULL) {
+ //ShowError("%s not found (grfio_resnameinit)\n", restable);
+ return;
+ }
+
+ while (fgets(line, sizeof(line) - 1, fp)){
+ if (sscanf(line, "%[^#]#%[^#]#", w1, w2) != 2)
+ continue;
+ // only save up necessary resource files
+ if (strstr(w1, ".gat") == NULL &&
+ strstr(w1, ".txt") == NULL)
+ continue;
+ if (resname_entrys >= RESNAME_LIMIT)
+ break;
+ if (resname_entrys >= resname_maxentrys) {
+ resname_maxentrys += RESNAME_ADDS;
+ localresname = (Resname*) aRealloc (localresname, resname_maxentrys * sizeof(Resname));
+ memset(localresname + (resname_maxentrys - RESNAME_ADDS), '\0', sizeof(Resname) * RESNAME_ADDS);
+ }
+ strcpy(localresname[resname_entrys].src, w1);
+ strcpy(localresname[resname_entrys].dst, w2);
+ resname_entrys++;
+ }
+ fclose(fp);
+
+ // free up unused sections
+ if (resname_maxentrys > resname_entrys) {
+ localresname = (Resname*) aRealloc (localresname, resname_entrys * sizeof(Resname));
+ resname_maxentrys = resname_entrys;
+ }
+}
+
+/*==========================================
+ * 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;
+
+ grfio_resnametable(fname, rname);
+ sprintf(lfname, "%s%s", data_dir, rname);
+
+ 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) {
+ 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], rname[256], *p;
+ FILELIST lentry;
+
+ // resolve filename into rname
+ grfio_resnametable(fname, rname);
+ sprintf(lfname, "%s%s", data_dir, rname);
+
+ 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 *)aCallocA(lentry.declen + 1024, 1);
+ fread(buf2, 1, lentry.declen, in);
+ fclose(in);
+ 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 {
+ 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 *)aCallocA(entry->srclen_aligned + 1024, 1);
+ fseek(in, entry->srcpos, 0);
+ fread(buf, 1, entry->srclen_aligned, in);
+ fclose(in);
+ buf2 = (unsigned char *)aCallocA(entry->declen + 1024, 1);
+ 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;
+}
+
+/*==========================================
+ * Grfio : Resource file read
+ *------------------------------------------
+ */
+void* grfio_read(char *fname)
+{
+ return grfio_reads(fname, NULL);
+}
+
+/*==========================================
+ * 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("%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 *) aCallocA(list_size, 1);
+ /*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("file name too long : %s\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);
+#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 *)aCallocA(rSize , 1); // 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 *)aCallocA(eSize , 1); // 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 too long : %s\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);
+#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("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(void)
+{
+ int size;
+ char *buf, *ptr;
+ char w1[256], w2[256], src[256], dst[256];
+ FILELIST *entry;
+
+ buf = (char *)grfio_reads("data\\resnametable.txt", &size);
+ if (buf == NULL)
+ return;
+ 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 {
+ //ShowError("file not found in data.grf : %s < %s\n",dst,src);
+ }
+ }
+ ptr = strchr(ptr,'\n'); // Next line
+ if (!ptr) break;
+ ptr++;
+ }
+ aFree(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) {
+ 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*));
+ memset(gentry_table + (gentry_maxentry - GENTRY_ADDS), 0, sizeof(char*) * GENTRY_ADDS);
+ }
+ len = strlen( fname );
+ buf = (char*)aCallocA(len + 1, 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)
+{
+ 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;
+
+ if (localresname) aFree(localresname);
+}
+
+/*==========================================
+ * 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.
+ }
+
+ // initialise Resnametable
+ grfio_resnameinit();
+
+ return;
+}
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