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gtkradiant/libs/pak/pakstuff.cpp

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/*
Copyright (C) 1999-2007 id Software, Inc. and contributors.
For a list of contributors, see the accompanying CONTRIBUTORS file.
This file is part of GtkRadiant.
GtkRadiant is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
GtkRadiant is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#if defined (__linux__) || defined (__APPLE__)
#include <dirent.h>
#endif
#ifdef _WIN32
#include <io.h>
#endif
#include "pakstuff.h"
#include "unzip.h"
#include "str.h"
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
int m_nPAKIndex;
FILE* pakfile[16];
struct PACKDirectory pakdir;
PACKDirPtr pakdirptr = &pakdir;
UInt16 dirsize;
bool pakopen = false;
int f_type;
DIRECTORY *paktextures = NULL;
UInt32 PakColormapOffset;
UInt32 PakColormapSize;
DIRECTORY *dirhead = NULL;
bool g_bPK3 = false;
char g_strBasePaths[16][1024];
int g_numBasePaths = 0;
struct PK3FileInfo
{
unzFile m_zFile;
char *m_pName;
unz_s m_zInfo;
long m_lSize;
~PK3FileInfo()
{
delete []m_pName;
}
bool operator ==(const PK3FileInfo& rhs) const { return strcmp(m_pName, rhs.m_pName) == 0; }
};
#define __PATHSEPERATOR '/'
//#define LOG_PAKFAIL
#ifdef LOG_PAKFAIL
#if defined (__linux__) || defined (__APPLE__)
#include <unistd.h>
#include <pwd.h>
#endif
#include <sys/types.h>
class LogFile
{
public:
FILE *m_pFile;
LogFile(const char* pName)
{
#if defined (__linux__) || defined (__APPLE__)
// leo: use ~/.q3a/radiant/paklog instead of /tmp/paklog.txt
char *home = NULL;
home = getenv("HOME");
if ( home == NULL )
{
uid_t id = getuid();
struct passwd *pwd;
setpwent();
while( (pwd = getpwent()) != NULL )
if( pwd->pw_uid == id )
{
home = pwd->pw_dir;
break;
}
endpwent();
}
if (home != NULL)
{
char path[PATH_MAX];
strcpy (path, home);
if (path[strlen(path)-1] != '/')
strcat (path, "/");
strcat (path, ".q3a/radiant/paklog");
m_pFile = fopen(path, "w");
}
else
#endif
m_pFile = fopen(pName, "w");
}
~LogFile()
{
if (m_pFile)
{
fclose(m_pFile);
}
}
void Log(const char *pFormat, ...)
{
if (m_pFile == NULL)
return;
va_list arg_ptr;
va_start(arg_ptr, pFormat);
fprintf(m_pFile, pFormat, arg_ptr);
va_end(arg_ptr);
}
};
LogFile g_LogFile("/tmp/paklog.txt");
#endif
template <class T> class StrPtr : public Str
{
protected:
T* m_pPtr;
StrPtr()
{
m_pPtr = NULL;
}
StrPtr(const char *pStr, T *p) : Str(pStr)
{
m_pPtr = p;
}
T* Ptr()
{
return m_pPtr;
}
T& Ref()
{
return *m_pPtr;
}
};
// PtrList
// a list of ptrs
//
template <class T> class PtrList
{
protected:
T *m_pPtr;
PtrList *m_pNext;
public:
PtrList()
{
m_pNext = NULL;
m_pPtr = NULL;
}
PtrList(T *ip)
{
m_pNext = NULL;
m_pPtr = ip;
}
virtual ~PtrList()
{
delete m_pPtr;
}
PtrList* Next()
{
return m_pNext;
}
void Add(T *ip)
{
PtrList *pl = this;
while (pl && pl->m_pNext)
{
pl = pl->Next();
}
pl->m_pNext = new PtrList(ip);
}
void Remove()
{
PtrList *p = m_pNext;
if (p)
{
while (p->m_pNext != this && p->m_pNext != NULL)
{
p = p->m_pNext;
}
if (p->m_pNext == this)
{
p->m_pNext = m_pNext;
}
}
}
virtual PtrList* Find(T *ip)
{
PtrList *p = m_pNext;
while (p)
{
if (*p->m_pPtr == *ip)
{
return p;
}
p = p->m_pNext;
}
return NULL;
}
// remove vp from the list
void Remove(T *ip)
{
PtrList *p = Find(ip);
if (p)
{
p->Remove();
}
}
T* Ptr()
{
return m_pPtr;
}
T& Ref()
{
return *m_pPtr;
}
void RemoveAll()
{
PtrList *p = m_pNext;
while (p)
{
PtrList *p2 = p;
p = p->m_pNext;
delete p2;
}
}
};
typedef PtrList<unzFile> ZFileList;
typedef PtrList<Str> StrList;
typedef PtrList<PK3FileInfo> PK3List;
StrList g_PK3TexturePaths;
PK3List g_PK3Files;
ZFileList g_zFiles;
#define WORK_LEN 1024
#define TEXTURE_PATH "textures"
#define PATH_SEPERATORS "/\\:\0"
/*
char* __StrDup(char* pStr)
{
if (pStr == NULL)
pStr = "";
return strcpy(new char[strlen(pStr)+1], pStr);
}
char* __StrDup(const char* pStr)
{
if (pStr == NULL)
pStr = "";
return strcpy(new char[strlen(pStr)+1], pStr);
}
*/
#define MEM_BLOCKSIZE 4096
void* __qblockmalloc(size_t nSize)
{
void *b;
// round up to threshold
int nAllocSize = nSize % MEM_BLOCKSIZE;
if ( nAllocSize > 0)
{
nSize += MEM_BLOCKSIZE - nAllocSize;
}
b = malloc(nSize + 1);
memset (b, 0, nSize);
return b;
}
void* __qmalloc (size_t nSize)
{
void *b;
b = malloc(nSize + 1);
memset (b, 0, nSize);
return b;
}
/*
====================
Extract file parts
====================
*/
void __ExtractFilePath (const char *path, char *dest)
{
const char *src;
src = path + strlen(path) - 1;
//
// back up until a \ or the start
//
while (src != path && *(src-1) != __PATHSEPERATOR)
src--;
memcpy (dest, path, src-path);
dest[src-path] = 0;
}
void __ExtractFileName (const char *path, char *dest)
{
const char *src;
src = path + strlen(path) - 1;
//
// back up until a \ or the start
//
while (src != path && *(src-1) != '/'
&& *(src-1) != '\\' )
src--;
while (*src)
{
*dest++ = *src++;
}
*dest = 0;
}
void __ExtractFileBase (const char *path, char *dest)
{
const char *src;
src = path + strlen(path) - 1;
//
// back up until a \ or the start
//
while (src != path && *(src-1) != '/'
&& *(src-1) != '\\' )
src--;
while (*src && *src != '.')
{
*dest++ = *src++;
}
*dest = 0;
}
void __ExtractFileExtension (const char *path, char *dest)
{
const char *src;
src = path + strlen(path) - 1;
//
// back up until a . or the start
//
while (src != path && *(src-1) != '.')
src--;
if (src == path)
{
*dest = 0; // no extension
return;
}
strcpy (dest,src);
}
void __ConvertDOSToUnixName( char *dst, const char *src )
{
while ( *src )
{
if ( *src == '\\' )
*dst = '/';
else
*dst = *src;
dst++; src++;
}
*dst = 0;
}
static void AddSlash(Str& str)
{
int nLen = str.GetLength();
if (nLen > 0)
{
if (str[nLen-1] != '\\' && str[nLen-1] != '/')
str += '\\';
}
}
static void FindReplace(Str& strContents, const char* pTag, const char* pValue)
{
if (strcmp(pTag, pValue) == 0)
return;
for (int nPos = strContents.Find(pTag); nPos >= 0; nPos = strContents.Find(pTag))
{
int nRightLen = strContents.GetLength() - strlen(pTag) - nPos;
Str strLeft(strContents.Left(nPos));
Str strRight(strContents.Right(nRightLen));
strLeft += pValue;
strLeft += strRight;
strContents = strLeft;
}
}
void ClearFileList(FILELIST **list)
{
FILELIST *temp;
while(*list)
{
temp = *list;
*list = (*list)->next;
free(temp);
}
}
void ClearDirList(DIRLIST **list)
{
DIRLIST *temp;
while(*list)
{
temp = *list;
*list = (*list)->next;
free(temp);
}
}
DIRECTORY *FindPakDir(DIRECTORY *dir, char *name)
{
DIRECTORY *currentPtr;
for(currentPtr = dir; currentPtr; currentPtr = currentPtr->next)
{
if(!stricmp(name, currentPtr->name))
{
return currentPtr;
}
}
return NULL;
}
// LoadPK3FileList
// ---------------
//
// This gets passed a file mask which we want to remove as
// we are only interested in the directory name and any given
// extension. Only handles explicit filenames or *.something
//
bool LoadPK3FileList(FILELIST **filelist, const char *pattern)
{
char cSearch[WORK_LEN];
__ConvertDOSToUnixName( cSearch, pattern );
char cPath[WORK_LEN];
char cExt[WORK_LEN];
char cFile[WORK_LEN];
char cWork[WORK_LEN];
__ExtractFilePath(pattern, cPath);
__ExtractFileName(pattern, cFile);
__ExtractFileExtension(pattern, cExt);
const char *pCompare = (strnicmp(cFile, "*.", 2) == 0) ? cExt : cFile;
PK3List *p = g_PK3Files.Next();
while (p != NULL)
{
// qualify the path
PK3FileInfo *pKey = p->Ptr();
if (strstr(pKey->m_pName, cPath) && strstr(pKey->m_pName, pCompare))
{
__ExtractFileName(pKey->m_pName, cWork);
AddToFileListAlphabetized(filelist, cWork, 0, 0, false);
}
p = p->Next();
}
return (*filelist) != NULL;
}
bool GetPackFileList(FILELIST **filelist, char *pattern)
{
char *str1, *str2;
int i;
DIRECTORY *dummy = paktextures;
FILELIST *temp;
if (!pakopen)
return false;
if (g_bPK3)
{
return LoadPK3FileList(filelist, pattern);
}
str1 = pattern;
for(i = 0; pattern[i] != '\0'; i++)
{
if(pattern[i] == '\\')
pattern[i] = '/';
}
while(strchr(str1, '/'))
{
str2 = strchr(str1, '/');
*str2++ = '\0';
dummy = FindPakDir(dummy, str1);
if(!dummy)
return false;
str1 = str2;
}
for(temp = dummy->files; temp; temp=temp->next)
{
AddToFileListAlphabetized(filelist, temp->filename, temp->offset, 0, false);
}
return true;
}
bool GetPackTextureDirs(DIRLIST **dirlist)
{
UInt16 i;
char buf[57];
if (!pakopen)
return 1;
if (g_bPK3)
{
StrList *pl = g_PK3TexturePaths.Next();
while (pl != NULL)
{
AddToDirListAlphabetized(dirlist, pl->Ref(), 0);
pl = pl->Next();
}
return true;
}
for (i = 0; i < dirsize; i++)
{
if(!strnicmp(pakdirptr[i].name, "textures", 8))
{
strncpy(buf, &(pakdirptr[i].name[9]), 46);
if(strchr(buf, '\\'))
*strchr(buf, '\\') = '\0';
else if(strchr(buf, '/'))
*strchr(buf, '/') = '\0';
else
buf[56] = '\0';
if(strchr(buf, '.'))
continue;
AddToDirListAlphabetized(dirlist, buf, 0);
}
}
return true;
}
bool AddToDirListAlphabetized(DIRLIST **list, char *dirname, int from)
{
DIRLIST *currentPtr, *previousPtr, *newPtr;
strlwr(dirname);
for(currentPtr = *list; currentPtr; currentPtr = currentPtr->next)
{
if(!stricmp(dirname, currentPtr->dirname))
{
return false;
}
}
previousPtr = NULL;
currentPtr = *list;
if((newPtr = (DIRLIST *)__qmalloc(sizeof(DIRLIST))) == NULL)
return false;
strcpy(newPtr->dirname, dirname);
newPtr->from = from;
while(currentPtr != NULL && stricmp(dirname, currentPtr->dirname) > 0)
{
previousPtr = currentPtr;
currentPtr = currentPtr->next;
} //End while
if(previousPtr == NULL)
{
newPtr->next = *list;
*list = newPtr;
} //End if
else
{
previousPtr->next = newPtr;
newPtr->next = currentPtr;
} //End else
return true;
}
bool AddToFileListAlphabetized(FILELIST **list, char *filename, UInt32 offset, UInt32 size, bool dirs)
{
FILELIST *currentPtr, *previousPtr, *newPtr;
for(currentPtr = *list; currentPtr; currentPtr = currentPtr->next)
{
if(!stricmp(filename, currentPtr->filename))
{
return false;
}
}
previousPtr = NULL;
currentPtr = *list;
if((newPtr = (FILELIST *)__qmalloc(sizeof(FILELIST))) == NULL)
return false;
strcpy(newPtr->filename, filename);
newPtr->offset = offset;
newPtr->size = size;
while(currentPtr != NULL && stricmp(filename, currentPtr->filename) > 0)
{
previousPtr = currentPtr;
currentPtr = currentPtr->next;
} //End while
if(previousPtr == NULL)
{
newPtr->next = *list;
*list = newPtr;
} //End if
else
{
previousPtr->next = newPtr;
newPtr->next = currentPtr;
} //End else
return true;
}
int PakLoadAnyFile(const char *filename, void **bufferptr)
{
char cWork[WORK_LEN];
if (g_bPK3)
{
// leo: hack to be able to use pak files from multiple directories
for (int i = 0; i < g_numBasePaths; i++)
{
PK3FileInfo *pInfo;
Str strKey;
// need to lookup the file without the base/texture path on it
Str strBase(g_strBasePaths[i]);
AddSlash(strBase);
__ConvertDOSToUnixName(cWork, strBase);
Str strFile(filename);
__ConvertDOSToUnixName(strFile, strFile);
strFile.MakeLower();
strlwr(cWork);
FindReplace(strFile, cWork, "");
PK3FileInfo infoFind;
infoFind.m_pName = __StrDup(strFile.GetBuffer());
PK3List *pList = g_PK3Files.Find(&infoFind);
if (pList)
{
pInfo = pList->Ptr();
memcpy(pInfo->m_zFile, &pInfo->m_zInfo, sizeof(unz_s));
if (unzOpenCurrentFile(pInfo->m_zFile) == UNZ_OK)
{
void *buffer = __qblockmalloc(pInfo->m_lSize+1);
int n = unzReadCurrentFile(pInfo->m_zFile , buffer, pInfo->m_lSize);
*bufferptr = buffer;
unzCloseCurrentFile(pInfo->m_zFile);
return n;
}
}
}
#ifdef LOG_PAKFAIL
sprintf(cWork, "PAK failed on %s\n", filename);
g_LogFile.Log(cWork);
#endif
return -1;
}
for (int i = 0; i < dirsize; i++)
{
if(!stricmp(filename, pakdirptr[i].name))
{
if (fseek(pakfile[m_nPAKIndex], pakdirptr[i].offset, SEEK_SET) >= 0)
{
void *buffer = __qmalloc (pakdirptr[i].size+1);
((char *)buffer)[pakdirptr[i].size] = 0;
if (fread(buffer, 1, pakdirptr[i].size, pakfile[m_nPAKIndex]) == pakdirptr[i].size)
{
*bufferptr = buffer;
return pakdirptr[i].size;
}
}
}
}
#ifdef LOG_PAKFAIL
sprintf(cWork, "PAK failed on %s\n", filename);
g_LogFile.Log(cWork);
#endif
return -1;
}
DIRECTORY *AddPakDir(DIRECTORY **dir, char *name)
{
DIRECTORY *currentPtr, *previousPtr, *newPtr;
for(currentPtr = *dir; currentPtr; currentPtr = currentPtr->next)
{
if(!stricmp(name, currentPtr->name))
{
return currentPtr;
}
}
previousPtr = NULL;
currentPtr = *dir;
if((newPtr = (DIRECTORY *)__qmalloc(sizeof(DIRECTORY))) == NULL)
return NULL;
strcpy(newPtr->name, name);
newPtr->files = NULL;
while(currentPtr != NULL && stricmp(name, currentPtr->name) > 0)
{
previousPtr = currentPtr;
currentPtr = currentPtr->next;
}
if(previousPtr == NULL)
{
newPtr->next = *dir;
*dir = newPtr;
}
else
{
previousPtr->next = newPtr;
newPtr->next = currentPtr;
}
return newPtr;
}
// OpenPK3
// -------
// Opens a PK3 ( or zip ) file and creates a list of filenames
// and zip info structures
//
bool OpenPK3(const char *filename)
{
char cFilename[WORK_LEN];
char cName[WORK_LEN];
char cWork[WORK_LEN];
unz_file_info zInfo;
unzFile *zFile = new unzFile(unzOpen(filename));
g_zFiles.Add(zFile);
if (zFile != NULL)
{
int nStatus = unzGoToFirstFile(*zFile);
while (nStatus == UNZ_OK)
{
cFilename[0] = '\0';
unzGetCurrentFileInfo(*zFile, &zInfo, cFilename, WORK_LEN, NULL, 0, NULL, 0);
strlwr(cFilename);
__ConvertDOSToUnixName( cWork, cFilename);
if (strstr(cWork, ".") != NULL)
{
PK3FileInfo *pInfo = new PK3FileInfo();
pInfo->m_pName = __StrDup(cWork);
memcpy(&pInfo->m_zInfo, (unz_s*)*zFile, sizeof(unz_s));
pInfo->m_lSize = zInfo.uncompressed_size;
pInfo->m_zFile = *zFile;
g_PK3Files.Add(pInfo);
}
char *p = strstr(cFilename, TEXTURE_PATH);
if (p != NULL)
{
// FIXME: path differences per os ?
// catch solo directory entry
if (strlen(p) > strlen(TEXTURE_PATH) + 1)
{
// skip textures + path seperator
p += strlen(TEXTURE_PATH) + 1;
int nEnd = strcspn(p, PATH_SEPERATORS);
strncpy(cName, p, nEnd);
cName[nEnd] = '\0';
bool bFound = false;
StrList *pl = g_PK3TexturePaths.Next();
while (pl != NULL)
{
if (strcmpi(pl->Ref(), cName) == 0)
{
// already have this, continue
bFound = true;
break;
}
pl = pl->Next();
}
if (!bFound)
{
g_PK3TexturePaths.Add(new Str(cName));
}
}
}
nStatus = unzGoToNextFile(*zFile);
}
}
return (zFile != NULL);
}
void closePK3(unzFile zf)
{
unzClose(zf);
}
void OpenPakFile(const char *filename)
{
if(!pakopen)
paktextures = NULL;
pakopen = g_bPK3 = OpenPK3(filename);
}
void ClearPaKDir(DIRECTORY **dir)
{
DIRECTORY *d1 = *dir, *d2;
while(d1)
{
ClearFileList(&(d1->files));
d2 = d1;
d1 = d1->next;
free(d2);
}
}
void CleanUpPakDirs()
{
ClearPaKDir(&paktextures);
paktextures = NULL;
dirhead = NULL;
g_PK3TexturePaths.RemoveAll();
g_PK3Files.RemoveAll();
}
void ClosePakFile(void)
{
if(pakopen)
{
if (g_bPK3)
{
ZFileList *p = g_zFiles.Next();
while (p != NULL)
{
unzFile uz = p->Ref();
closePK3(uz);
p = p->Next();
}
}
else
{
fclose(pakfile[m_nPAKIndex]);
}
}
pakopen = false;
CleanUpPakDirs();
}
void WINAPI InitPakFile(const char * pBasePath, const char *pName)
{
if (g_numBasePaths == 0)
{
m_nPAKIndex = 0;
pakopen = false;
paktextures = NULL;
}
strcpy(g_strBasePaths[g_numBasePaths], pBasePath);
g_numBasePaths++;
if (pName == NULL)
{
//++timo FIXME: use some kind of compatibility lib here!
#if defined (__linux__) || defined (__APPLE__)
char cWork[WORK_LEN];
struct dirent *dirlist;
DIR *dir;
dir = opendir (pBasePath);
if (dir != NULL)
{
while ((dirlist = readdir (dir)) != NULL)
{
if (strstr (dirlist->d_name, ".pk3") == NULL)
continue;
sprintf(cWork, "%s/%s", pBasePath, dirlist->d_name);
OpenPakFile(cWork);
}
closedir (dir);
}
#endif
#ifdef _WIN32
char cWork[WORK_LEN];
Str strPath(pBasePath);
AddSlash(strPath);
strPath += "*.pk3";
bool bGo = true;
struct _finddata_t fileinfo;
int handle = _findfirst (strPath, &fileinfo);
if (handle != -1)
{
do
{
sprintf(cWork, "%s/%s", pBasePath, fileinfo.name);
OpenPakFile(cWork);
} while (_findnext( handle, &fileinfo ) != -1);
_findclose (handle);
}
#endif
}
else
{
OpenPakFile(pName);
}
}
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