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-rw-r--r--src/common/grfio.c582
1 files changed, 319 insertions, 263 deletions
diff --git a/src/common/grfio.c b/src/common/grfio.c
index eefeb8296..856df6bb3 100644
--- a/src/common/grfio.c
+++ b/src/common/grfio.c
@@ -24,13 +24,16 @@ typedef struct _FILELIST {
int declen; // original size
int srcpos; // position of entry in grf
int next; // index of next filelist entry with same hash (-1: end of entry chain)
- int cycle;
char type;
char fn[128-4*5]; // file name
char* fnd; // if the file was cloned, contains name of original file
char gentry; // read grf file select
} FILELIST;
+#define FILELIST_TYPE_FILE 0x01 // entry is a file
+#define FILELIST_TYPE_ENCRYPT_HEADER 0x04 // encryption mode 1 (header DES only)
+#define FILELIST_TYPE_ENCRYPT_MIXED 0x02 // encryption mode 0 (header DES + periodic DES/shuffle)
+
//gentry ... > 0 : data read from a grf file (gentry_table[gentry-1])
//gentry ... 0 : data read from a local file (data directory)
//gentry ... < 0 : entry "-(gentry)" is marked for a local file check
@@ -40,6 +43,7 @@ typedef struct _FILELIST {
// (NOTE: probably meant to be used to override grf contents by files in the data directory)
//#define GRFIO_LOCAL
+
// stores info about every loaded file
FILELIST* filelist = NULL;
int filelist_entrys = 0;
@@ -53,21 +57,21 @@ int gentry_maxentry = 0;
// the path to the data directory
char data_dir[1024] = "";
-//----------------------------
-// file list hash table
-//----------------------------
-int filelist_hash[256];
// little endian char array to uint conversion
static unsigned int getlong(unsigned char* p)
{
- return (p[0] | p[1] << 0x08 | p[2] << 0x10 | p[3] << 0x18);
+ return (p[0] << 0 | p[1] << 8 | p[2] << 16 | p[3] << 24);
}
-static void NibbleSwap(unsigned char* Src, int len)
+
+static void NibbleSwap(unsigned char* src, int len)
{
- for(;0<len;len--,Src++) {
- *Src = (*Src>>4) | (*Src<<4);
+ while( len > 0 )
+ {
+ *src = (*src >> 4) | (*src << 4);
+ ++src;
+ --len;
}
}
@@ -135,46 +139,118 @@ static void grf_shuffle_dec(BIT64* src)
}
-static void decode_des_etc(unsigned char* buf, size_t len, int type, int cycle)
+static void grf_decode_header(unsigned char* buf, size_t len)
+{
+ BIT64* p = (BIT64*)buf;
+ size_t nblocks = len / sizeof(BIT64);
+ size_t i;
+
+ // first 20 blocks are all des-encrypted
+ for( i = 0; i < 20 && i < nblocks; ++i )
+ des_decrypt_block(&p[i]);
+
+ // the rest is plaintext, done.
+}
+
+
+static void grf_decode_full(unsigned char* buf, size_t len, int cycle)
{
BIT64* p = (BIT64*)buf;
+ size_t nblocks = len / sizeof(BIT64);
+ int dcycle, scycle;
+ size_t i, j;
+
+ // first 20 blocks are all des-encrypted
+ for( i = 0; i < 20 && i < nblocks; ++i )
+ des_decrypt_block(&p[i]);
- size_t lop,cnt=0;
- if(cycle<3) cycle=3;
- else if(cycle<5) cycle++;
- else if(cycle<7) cycle+=9;
- else cycle+=15;
+ // after that only one of every 'dcycle' blocks is des-encrypted
+ dcycle = cycle;
- for(lop=0; lop*8<len; lop++)
+ // and one of every 'scycle' plaintext blocks is shuffled (starting from the 0th but skipping the 0th)
+ scycle = 7;
+
+ // so decrypt/de-shuffle periodically
+ j = -1; // 0, adjusted to fit the ++j step
+ for( i = 20; i < nblocks; ++i )
{
- if(lop<20 || (type==0 && lop%cycle==0)) { // des
- des_decrypt_block(&p[lop]);
- } else {
- if(cnt==7 && type==0) {
- grf_shuffle_dec(&p[lop]);
- cnt=0;
- }
- cnt++;
+ if( i % dcycle == 0 )
+ {// decrypt block
+ des_decrypt_block(&p[i]);
+ continue;
}
+
+ ++j;
+ if( j % scycle == 0 && j != 0 )
+ {// de-shuffle block
+ grf_shuffle_dec(&p[i]);
+ continue;
+ }
+
+ // plaintext, do nothing.
}
}
-unsigned long grfio_crc32 (const unsigned char* buf, unsigned int len)
+
+/// Decodes grf data.
+/// @param buf data to decode (in-place)
+/// @param len length of the data
+/// @param entry_type flags associated with the data
+/// @param entry_len true (unaligned) length of the data
+static void grf_decode(unsigned char* buf, size_t len, char entry_type, int entry_len)
+{
+ if( entry_type & FILELIST_TYPE_ENCRYPT_MIXED )
+ {// fully encrypted
+ int digits;
+ int cycle;
+ int i;
+
+ // compute number of digits of the entry length
+ digits = 1;
+ for( i = 10; i <= entry_len; i *= 10 )
+ ++digits;
+
+ // choose size of gap between two encrypted blocks
+ // digits: 0 1 2 3 4 5 6 7 8 9 ...
+ // cycle: 1 1 1 4 5 14 15 22 23 24 ...
+ cycle = ( digits < 3 ) ? 1
+ : ( digits < 5 ) ? digits + 1
+ : ( digits < 7 ) ? digits + 9
+ : digits + 15;
+
+ grf_decode_full(buf, len, cycle);
+ }
+ else
+ if( entry_type & FILELIST_TYPE_ENCRYPT_HEADER )
+ {// header encrypted
+ grf_decode_header(buf, len);
+ }
+ else
+ {// plaintext
+ ;
+ }
+}
+
+
+/******************************************************
+ *** Zlib Subroutines ***
+ ******************************************************/
+
+/// zlib crc32
+unsigned long grfio_crc32(const unsigned char* buf, unsigned int len)
{
return crc32(crc32(0L, Z_NULL, 0), buf, len);
}
-///////////////////////////////////////////////////////////////////////////////
-/// Grf data sub : zip decode
+/// zlib uncompress
int decode_zip(void* dest, unsigned long* destLen, const void* source, unsigned long sourceLen)
{
return uncompress((Bytef*)dest, destLen, (const Bytef*)source, sourceLen);
}
-///////////////////////////////////////////////////////////////////////////////
-/// Grf data sub : zip encode
+/// zlib compress
int encode_zip(void* dest, unsigned long* destLen, const void* source, unsigned long sourceLen)
{
return compress((Bytef*)dest, destLen, (const Bytef*)source, sourceLen);
@@ -184,6 +260,8 @@ int encode_zip(void* dest, unsigned long* destLen, const void* source, unsigned
/***********************************************************
*** File List Subroutines ***
***********************************************************/
+// file list hash table
+int filelist_hash[256];
// initializes the table that holds the first elements of all hash chains
static void hashinit(void)
@@ -194,7 +272,7 @@ static void hashinit(void)
}
// hashes a filename string into a number from {0..255}
-static int filehash(char* fname)
+static int filehash(const char* fname)
{
unsigned int hash = 0;
while(*fname) {
@@ -205,7 +283,7 @@ static int filehash(char* fname)
}
// finds a FILELIST entry with the specified file name
-static FILELIST* filelist_find(char* fname)
+static FILELIST* filelist_find(const char* fname)
{
int hash, index;
@@ -221,7 +299,7 @@ static FILELIST* filelist_find(char* fname)
}
// returns the original file name
-char* grfio_find_file(char* fname)
+char* grfio_find_file(const char* fname)
{
FILELIST *filelist = filelist_find(fname);
if (!filelist) return NULL;
@@ -267,7 +345,7 @@ static FILELIST* filelist_modify(FILELIST* entry)
}
// shrinks the file list array if too long
-static void filelist_adjust(void)
+static void filelist_compact(void)
{
if (filelist == NULL)
return;
@@ -279,8 +357,12 @@ static void filelist_adjust(void)
}
-/// Combines are resource path with the data folder location to
-/// create local resource path.
+/***********************************************************
+ *** Grfio Subroutines ***
+ ***********************************************************/
+
+
+/// Combines are resource path with the data folder location to create local resource path.
static void grfio_localpath_create(char* buffer, size_t size, const char* filename)
{
unsigned int i;
@@ -288,7 +370,7 @@ static void grfio_localpath_create(char* buffer, size_t size, const char* filena
len = strlen(data_dir);
- if( data_dir[0] == 0 || data_dir[len-1] == '/' || data_dir[len-1] == '\\' )
+ if( data_dir[0] == '\0' || data_dir[len-1] == '/' || data_dir[len-1] == '\\' )
{
safesnprintf(buffer, size, "%s%s", data_dir, filename);
}
@@ -297,78 +379,42 @@ static void grfio_localpath_create(char* buffer, size_t size, const char* filena
safesnprintf(buffer, size, "%s/%s", data_dir, filename);
}
- for( i = 0; buffer[i]; i++ )
- {// normalize path
+ // normalize path
+ for( i = 0; buffer[i] != '\0'; ++i )
if( buffer[i] == '\\' )
- {
buffer[i] = '/';
- }
- }
}
-/***********************************************************
- *** Grfio Sobroutines ***
- ***********************************************************/
-
-// returns a file's size
-/*
-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;
-
- grfio_localpath_create(lfname, sizeof(lfname), fname);
-
- if (stat(lfname, &st) == 0) {
- safestrncpy(lentry.fn, fname, sizeof(lentry.fn));
- lentry.fnd = NULL;
- lentry.declen = st.st_size;
- lentry.gentry = 0; // 0:LocalFile
- entry = filelist_modify(&lentry);
- } else if (entry == NULL) {
- ShowError("%s not found (grfio_size)\n", fname);
- return -1;
- }
- }
- return entry->declen;
-}
-*/
-
-// reads a file into a newly allocated buffer (from grf or data directory)
-void* grfio_reads(char* fname, int* size)
+/// Reads a file into a newly allocated buffer (from grf or data directory).
+void* grfio_reads(const char* fname, int* size)
{
- FILE* in;
- FILELIST* entry;
unsigned char* buf2 = NULL;
- entry = filelist_find(fname);
-
- if (entry == NULL || entry->gentry <= 0) { // LocalFileCheck
+ FILELIST* entry = filelist_find(fname);
+ if( entry == NULL || entry->gentry <= 0 )
+ {// LocalFileCheck
char lfname[256];
int declen;
+ FILE* in;
grfio_localpath_create(lfname, sizeof(lfname), ( entry && entry->fnd ) ? entry->fnd : fname);
in = fopen(lfname, "rb");
- if (in != NULL) {
+ if( in != NULL )
+ {
fseek(in,0,SEEK_END);
declen = ftell(in);
fseek(in,0,SEEK_SET);
buf2 = (unsigned char *)aMallocA(declen+1); // +1 for resnametable zero-termination
fread(buf2, 1, declen, in);
fclose(in);
+
if( size )
- {
- size[0] = declen;
- }
- } else {
+ *size = declen;
+ }
+ else
+ {
if (entry != NULL && entry->gentry < 0) {
entry->gentry = -entry->gentry; // local file checked
} else {
@@ -377,19 +423,23 @@ void* grfio_reads(char* fname, int* size)
}
}
}
- if (entry != NULL && entry->gentry > 0) { // Archive[GRF] File Read
+
+ if( entry != NULL && entry->gentry > 0 )
+ {// Archive[GRF] File Read
char* grfname = gentry_table[entry->gentry - 1];
- in = fopen(grfname, "rb");
- if(in != NULL) {
+ FILE* in = fopen(grfname, "rb");
+ if( in != NULL )
+ {
unsigned char *buf = (unsigned char *)aMallocA(entry->srclen_aligned);
fseek(in, entry->srcpos, 0);
fread(buf, 1, entry->srclen_aligned, in);
fclose(in);
+
buf2 = (unsigned char *)aMallocA(entry->declen+1); // +1 for resnametable zero-termination
- if (entry->type == 1 || entry->type == 3 || entry->type == 5) {
+ if( entry->type & FILELIST_TYPE_FILE )
+ {// file
uLongf len;
- if (entry->cycle >= 0)
- decode_des_etc(buf, entry->srclen_aligned, entry->cycle == 0, entry->cycle);
+ grf_decode(buf, entry->srclen_aligned, entry->type, entry->srclen);
len = entry->declen;
decode_zip(buf2, &len, buf, entry->srclen);
if (len != (uLong)entry->declen) {
@@ -398,15 +448,19 @@ void* grfio_reads(char* fname, int* size)
aFree(buf2);
return NULL;
}
- } else {
+ }
+ else
+ {// directory?
memcpy(buf2, buf, entry->declen);
}
+
if( size )
- {
- size[0] = entry->declen;
- }
+ *size = entry->declen;
+
aFree(buf);
- } else {
+ }
+ else
+ {
ShowError("grfio_reads: %s not found (GRF file: %s)\n", fname, grfname);
return NULL;
}
@@ -415,9 +469,8 @@ void* grfio_reads(char* fname, int* size)
return buf2;
}
-/*==========================================
- * Resource filename decode
- *------------------------------------------*/
+
+/// Decodes encrypted filename from a version 01xx grf index.
static char* decode_filename(unsigned char* buf, int len)
{
int lop;
@@ -428,30 +481,49 @@ static char* decode_filename(unsigned char* buf, int len)
return (char*)buf;
}
-// loads all entries in the specified grf file into the filelist
-// gentry - index of the grf file name in the gentry_table
-static int grfio_entryread(char* grfname, int gentry)
+
+/// Compares file extension against known large file types.
+/// @return true if the file should undergo full mode 0 decryption, and true otherwise.
+static bool isFullEncrypt(const char* fname)
+{
+ static const char extensions[4][5] = { ".gnd", ".gat", ".act", ".str" };
+ size_t i;
+
+ const char* ext = strrchr(fname, '.');
+ if( ext != NULL )
+ for( i = 0; i < ARRAYLENGTH(extensions); ++i )
+ if( strcmpi(ext, extensions[i]) == 0 )
+ return false;
+
+ return true;
+}
+
+
+/// Loads all entries in the specified grf file into the filelist.
+/// @param gentry index of the grf file name in the gentry_table
+static int grfio_entryread(const char* grfname, int gentry)
{
- FILE* fp;
long grf_size,list_size;
unsigned char grf_header[0x2e];
- int lop,entry,entrys,ofs,grf_version;
- char *fname;
+ int entry,entrys,ofs,grf_version;
unsigned char *grf_filelist;
- fp = fopen(grfname, "rb");
- if (fp == NULL) {
+ FILE* fp = fopen(grfname, "rb");
+ if( fp == NULL )
+ {
ShowWarning("GRF data file not found: '%s'\n",grfname);
return 1; // 1:not found error
- } else
+ }
+ else
ShowInfo("GRF data file found: '%s'\n",grfname);
fseek(fp,0,SEEK_END);
grf_size = ftell(fp);
fseek(fp,0,SEEK_SET);
+
fread(grf_header,1,0x2e,fp);
- if (strcmp((const char *) grf_header,"Master of Magic") ||
- fseek(fp,getlong(grf_header+0x1e),SEEK_CUR))
+ if( strcmp((const char*)grf_header,"Master of Magic") != 0 ||
+ fseek(fp,getlong(grf_header+0x1e),SEEK_CUR) != 0 )
{
fclose(fp);
ShowError("GRF %s read error\n", grfname);
@@ -460,7 +532,8 @@ static int grfio_entryread(char* grfname, int gentry)
grf_version = getlong(grf_header+0x2a) >> 8;
- if (grf_version == 0x01) { //****** Grf version 01xx ******
+ if( grf_version == 0x01 )
+ {// ****** Grf version 01xx ******
list_size = grf_size - ftell(fp);
grf_filelist = (unsigned char *) aMallocA(list_size);
fread(grf_filelist,1,list_size,fp);
@@ -469,42 +542,30 @@ static int grfio_entryread(char* grfname, int gentry)
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;
- unsigned char type;
- char* period_ptr;
+ for( entry = 0, ofs = 0; entry < entrys; ++entry )
+ {
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) {
+ int ofs2 = ofs+getlong(grf_filelist+ofs)+4;
+ unsigned char type = grf_filelist[ofs2+12];
+ if( type & FILELIST_TYPE_FILE )
+ {
+ char* fname = decode_filename(grf_filelist+ofs+6, grf_filelist[ofs]-6);
+ int srclen = getlong(grf_filelist+ofs2+0) - getlong(grf_filelist+ofs2+8) - 715;
+
+ if( strlen(fname) > sizeof(aentry.fn) - 1 )
+ {
ShowFatalError("GRF file name %s is too long\n", fname);
aFree(grf_filelist);
exit(EXIT_FAILURE);
}
- 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;
- }
+
+ type |= ( isFullEncrypt(fname) ) ? FILELIST_TYPE_ENCRYPT_MIXED : FILELIST_TYPE_ENCRYPT_HEADER;
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;
safestrncpy(aentry.fn, fname, sizeof(aentry.fn));
aentry.fnd = NULL;
@@ -515,11 +576,15 @@ static int grfio_entryread(char* grfname, int gentry)
#endif
filelist_modify(&aentry);
}
+
ofs = ofs2 + 17;
}
- aFree(grf_filelist);
- } else if (grf_version == 0x02) { //****** Grf version 02xx ******
+ aFree(grf_filelist);
+ }
+ else
+ if( grf_version == 0x02 )
+ {// ****** Grf version 02xx ******
unsigned char eheader[8];
unsigned char *rBuf;
uLongf rSize, eSize;
@@ -528,7 +593,8 @@ static int grfio_entryread(char* grfname, int gentry)
rSize = getlong(eheader); // Read Size
eSize = getlong(eheader+4); // Extend Size
- if ((long)rSize > grf_size-ftell(fp)) {
+ if( (long)rSize > grf_size-ftell(fp) )
+ {
fclose(fp);
ShowError("Illegal data format: GRF compress entry size\n");
return 4;
@@ -545,33 +611,27 @@ static int grfio_entryread(char* grfname, int gentry)
entrys = getlong(grf_header+0x26) - 7;
// Get an entry
- for(entry = 0, ofs = 0; entry < entrys; entry++) {
- int ofs2, srclen, srccount, type;
+ for( entry = 0, ofs = 0; entry < entrys; ++entry )
+ {
FILELIST aentry;
- fname = (char*)(grf_filelist+ofs);
- if (strlen(fname) > sizeof(aentry.fn)-1) {
+ char* fname = (char*)(grf_filelist+ofs);
+ int ofs2 = ofs + (int)strlen(fname)+1;
+ int type = grf_filelist[ofs2+12];
+
+ if( strlen(fname) > sizeof(aentry.fn)-1 )
+ {
ShowFatalError("GRF file name %s is too long\n", fname);
aFree(grf_filelist);
exit(EXIT_FAILURE);
}
- ofs2 = ofs + (int)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;
+ if( type & FILELIST_TYPE_FILE )
+ {// file
+ aentry.srclen = getlong(grf_filelist+ofs2+0);
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;
safestrncpy(aentry.fn, fname, sizeof(aentry.fn));
aentry.fnd = NULL;
@@ -582,30 +642,72 @@ static int grfio_entryread(char* grfname, int gentry)
#endif
filelist_modify(&aentry);
}
+
ofs = ofs2 + 17;
}
- aFree(grf_filelist);
- } else { //****** Grf Other version ******
+ aFree(grf_filelist);
+ }
+ else
+ {// ****** Grf Other version ******
fclose(fp);
ShowError("GRF version %04x not supported\n",getlong(grf_header+0x2a));
return 4;
}
- filelist_adjust(); // Unnecessary area release of filelist
+ filelist_compact(); // Unnecessary area release of filelist
return 0; // 0:no error
}
-/*==========================================
- * Grfio : Resource file check
- *------------------------------------------*/
+
+static bool grfio_parse_restable_row(const char* row)
+{
+ char w1[256], w2[256];
+ char src[256], dst[256];
+ char local[256];
+ FILELIST* entry;
+
+ if( sscanf(row, "%[^#]#%[^#]#", w1, w2) != 2 )
+ return false;
+
+ if( strstr(w2, ".gat") == NULL && strstr(w2, ".rsw") == NULL )
+ return false; // we only need the maps' GAT and RSW files
+
+ sprintf(src, "data\\%s", w1);
+ sprintf(dst, "data\\%s", w2);
+
+ entry = filelist_find(dst);
+ if( entry != NULL )
+ {// alias for GRF resource
+ FILELIST fentry;
+ memcpy(&fentry, entry, sizeof(FILELIST));
+ safestrncpy(fentry.fn, src, sizeof(fentry.fn));
+ fentry.fnd = aStrdup(dst);
+ filelist_modify(&fentry);
+ return true;
+ }
+
+ grfio_localpath_create(local, sizeof(local), dst);
+ if( exists(local) )
+ {// alias for local resource
+ FILELIST fentry;
+ memset(&fentry, 0, sizeof(fentry));
+ safestrncpy(fentry.fn, src, sizeof(fentry.fn));
+ fentry.fnd = aStrdup(dst);
+ filelist_modify(&fentry);
+ return true;
+ }
+
+ return false;
+}
+
+
+/// Grfio Resource file check.
static void grfio_resourcecheck(void)
{
- char w1[256], w2[256], src[256], dst[256], restable[256], line[256], local[256];
+ char restable[256];
char *ptr, *buf;
- FILELIST* entry;
- FILELIST fentry;
int size;
FILE* fp;
int i = 0;
@@ -614,41 +716,15 @@ static void grfio_resourcecheck(void)
grfio_localpath_create(restable, sizeof(restable), "data\\resnametable.txt");
fp = fopen(restable, "rb");
- if (fp) {
- while(fgets(line, sizeof(line), fp))
+ if( fp != NULL )
+ {
+ char line[256];
+ while( fgets(line, sizeof(line), 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)
- {// alias for GRF resource
- memcpy(&fentry, entry, sizeof(FILELIST));
- safestrncpy(fentry.fn, src, sizeof(fentry.fn));
- fentry.fnd = aStrdup(dst);
- filelist_modify(&fentry);
- i++;
- }
- else
- {
- grfio_localpath_create(local, sizeof(local), dst);
-
- if( exists(local) )
- {// alias for local resource
- memset(&fentry, 0, sizeof(fentry));
- //fentry.gentry = 0;
- safestrncpy(fentry.fn, src, sizeof(fentry.fn));
- fentry.fnd = aStrdup(dst);
- filelist_modify(&fentry);
- i++;
- }
- }
- }
+ if( grfio_parse_restable_row(line) )
+ ++i;
}
+
fclose(fp);
ShowStatus("Done reading '"CL_WHITE"%d"CL_RESET"' entries in '"CL_WHITE"%s"CL_RESET"'.\n", i, "resnametable.txt");
return; // we're done here!
@@ -656,57 +732,34 @@ static void grfio_resourcecheck(void)
// 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;
+ if( buf != NULL )
+ {
+ 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)
- {// alias for GRF resource
- memcpy(&fentry, entry, sizeof(FILELIST));
- safestrncpy(fentry.fn, src, sizeof(fentry.fn));
- fentry.fnd = aStrdup(dst);
- filelist_modify(&fentry);
- i++;
- }
- else
- {
- grfio_localpath_create(local, sizeof(local), dst);
-
- if( exists(local) )
- {// alias for local resource
- memset(&fentry, 0, sizeof(fentry));
- //fentry.gentry = 0;
- safestrncpy(fentry.fn, src, sizeof(fentry.fn));
- fentry.fnd = aStrdup(dst);
- filelist_modify(&fentry);
- i++;
- }
- }
- }
- ptr = strchr(ptr, '\n'); // Next line
- if (!ptr) break;
+ while( ptr - buf < size )
+ {
+ if( grfio_parse_restable_row(ptr) )
+ ++i;
+
+ ptr = strchr(ptr, '\n');
+ if( ptr == NULL ) break;
ptr++;
}
+
aFree(buf);
ShowStatus("Done reading '"CL_WHITE"%d"CL_RESET"' entries in '"CL_WHITE"%s"CL_RESET"'.\n", i, "data\\resnametable.txt");
return;
}
-
}
-// reads a grf file and adds it to the list
-static int grfio_add(char* fname)
-{
- #define GENTRY_ADDS 4 // The number increment of gentry_table entries
- if (gentry_entrys >= gentry_maxentry) {
+/// Reads a grf file and adds it to the list.
+static int grfio_add(const char* fname)
+{
+ if( gentry_entrys >= gentry_maxentry )
+ {
+ #define GENTRY_ADDS 4 // The number increment of gentry_table entries
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);
@@ -717,7 +770,8 @@ static int grfio_add(char* fname)
return grfio_entryread(fname, gentry_entrys - 1);
}
-// removes all entries
+
+/// Finalizes grfio.
void grfio_final(void)
{
if (filelist != NULL) {
@@ -743,46 +797,48 @@ void grfio_final(void)
gentry_entrys = gentry_maxentry = 0;
}
-/*==========================================
- * Grfio : Initialize
- *------------------------------------------*/
-void grfio_init(char* fname)
+
+/// Initializes grfio.
+void grfio_init(const 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), data_conf))
+ if( data_conf != NULL )
+ {
+ char line[1024];
+ while( fgets(line, sizeof(line), data_conf) )
{
- if (line[0] == '/' && line[1] == '/')
- continue;
- if (sscanf(line, "%[^:]: %[^\r\n]", w1, w2) != 2)
- continue;
+ char w1[1024], w2[1024];
+
+ if( line[0] == '/' && line[1] == '/' )
+ continue; // skip comments
+
+ if( sscanf(line, "%[^:]: %[^\r\n]", w1, w2) != 2 )
+ continue; // skip unrecognized lines
+
// 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
+ if( strcmp(w1, "grf") == 0 ) // GRF file
+ if( grfio_add(w2) == 0 )
+ ++grf_num;
+ else
+ if( strcmp(w1,"data_dir") == 0 ) // Data directory
safestrncpy(data_dir, w2, sizeof(data_dir));
- }
}
+
fclose(data_conf);
ShowStatus("Done reading '"CL_WHITE"%s"CL_RESET"'.\n", fname);
- } // end of reading grf-files.txt
+ }
- if (grf_num == 0) {
+ if( grf_num == 0 )
ShowInfo("No GRF loaded, using default data directory\n");
- }
// Unneccessary area release of filelist
- filelist_adjust();
+ filelist_compact();
// Resource check
grfio_resourcecheck();
-
- return;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-14 09:00:14 +0000