Added experimental new mapcache generator

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@9928 54d463be-8e91-2dee-dedb-b68131a5f0ec

1 files changed, 982 insertions, 0 deletions

diff --git a/src/tool/grfio.c b/src/tool/grfio.c
new file mode 100644
index 000000000..ad6a466ba
--- /dev/null
+++ b/src/tool/grfio.c
@@ -0,0 +1,982 @@
+// 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 <malloc.h>

+#include <sys/stat.h>

+

+#include "grfio.h"

+#include "../common/mmo.h"

+#include "../zlib/unzip.h"

+

+#define CHUNK 16384

+

+#ifdef __WIN32

+	#include "../zlib/zlib.h"

+	#include "../zlib/iowin32.h"

+#else

+	#ifndef __FREEBSD__

+		#include <zlib.h>

+	#endif

+#endif

+

+typedef	unsigned char	BYTE;

+typedef	unsigned short	WORD;

+typedef	unsigned long	DWORD;

+

+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;

+	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.

+

+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[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];

+	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];

+		}

+	}

+	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];

+		}

+	}

+	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;

+	memset(&stream, 0, sizeof(stream));

+	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;

+}

+

+/* ===================================

+* 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)

+		return 0;

+

+	if (unzLocateFile(uf, filename, 0) != UNZ_OK)

+		return 0;

+

+	err = unzOpenCurrentFilePassword(uf, NULL);

+

+	fout = fopen(filename,"wb");

+	if (fout == NULL)

+		return 0;

+

+	buf = (void *)malloc(size_buf);

+	do {

+		err = unzReadCurrentFile(uf, buf, size_buf);

+		if (err < 0)

+			break;

+		if (err > 0 &&

+			fwrite(buf, err, 1, fout)!=1)

+		{

+			err = UNZ_ERRNO;

+			break;

+		}

+	} while (err > 0);

+	

+	if (fout) fclose(fout);

+

+	if (err == UNZ_OK) {

+		err = unzCloseCurrentFile (uf);

+		free(buf);

+		return (err == UNZ_OK);

+	}

+	

+	unzCloseCurrentFile(uf); /* don't lose the error */

+

+	return 0;

+}

+

+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) {

+		printf("GRF filelist limit reached!\n");

+		exit(1);

+	}

+

+	if (filelist_entrys >= filelist_maxentry) {

+		filelist = (FILELIST *)realloc(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 *)realloc(

+				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) {

+			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;

+	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 *)malloc(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 {

+				printf("%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 *)malloc(entry->srclen_aligned + 1024);

+			fseek(in, entry->srcpos, 0);

+			fread(buf, 1, entry->srclen_aligned, in);

+			fclose(in);

+			buf2 = (unsigned char *)malloc(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) {

+					printf("decode_zip size mismatch err: %d != %d\n", (int)len, entry->declen);

+					free(buf);

+					free(buf2);

+					return NULL;

+				}

+			} else {

+				memcpy(buf2, buf, entry->declen);

+			}

+			free(buf);

+		} else {

+			printf("%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) {

+		printf("GRF data file not found: '%s'.\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);

+		printf("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 *) malloc(list_size);

+		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("GRF file name %s is too long\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);

+				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;

+		}

+		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 ((long)rSize > grf_size-ftell(fp)) { // Warning fix [Lance]

+			fclose(fp);

+			printf("Illegal data format: GRF compress entry size\n");

+			return 4;

+		}

+

+		rBuf = (unsigned char *)malloc(rSize);	// Get a Read Size

+		grf_filelist = (unsigned char *)malloc(eSize);	// Get a Extend Size

+		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 = (char*)(grf_filelist+ofs);

+			if (strlen(fname) > sizeof(aentry.fn)-1) {

+				printf("GRF file name %s is too long\n", fname);

+				free(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;

+		}

+		free(grf_filelist);

+

+	} else {	//****** Grf Other version ******

+		fclose(fp);

+		printf("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 maps' GAT and RSW files

+				(strstr(w2, ".gat") || strstr(w2, ".rsw")))

+			{

+				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);

+		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, ".rsw")))

+			{

+				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++;

+		}

+		free(buf);

+		return;

+	}

+

+}

+

+/*==========================================

+ * 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) {

+		printf("GRF file entry limit reached!\n");

+		exit(1);

+	}

+

+	if (gentry_entrys >= gentry_maxentry) {

+		gentry_maxentry += GENTRY_ADDS;

+		gentry_table = (char**)realloc(gentry_table, gentry_maxentry * sizeof(char*));

+		memset(gentry_table + (gentry_maxentry - GENTRY_ADDS), 0, sizeof(char*) * GENTRY_ADDS);

+	}

+	len = strlen( fname );

+	buf = (char*)malloc(len + 1);

+	strcpy(buf, fname);

+	gentry_table[gentry_entrys++] = buf;

+

+	return buf;

+}

+

+/*==========================================

+ * Grfio : Finalize

+ *------------------------------------------

+ */

+void grfio_final(void)

+{

+	if (filelist != NULL)

+		free(filelist);

+

+	filelist_entrys = filelist_maxentry = 0;

+

+	if (gentry_table != NULL) {

+		int lop;

+		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 grf_num = 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)	// GRF file

+				grf_num += (grfio_add(w2) == 0);

+			else if(strcmp(w1,"data_dir") == 0)	// Data directory

+				strcpy(data_dir, w2);

+		}

+		fclose(data_conf);

+	} // end of reading grf-files.txt

+

+	if (grf_num == 0) {

+		printf("No GRF loaded, using default data directory\n");

+	}

+

+	// Unnecessary area release of filelist

+	filelist_adjust();

+	// Resource check

+	grfio_resourcecheck();

+

+	return;

+}