mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-24 13:21:11 +00:00
94db9c8ab1
While this didn't fix the problem for which I needed the data pointer, having data pointers in callbacks is far too useful to throw out the change.
429 lines
14 KiB
C
429 lines
14 KiB
C
/*
|
|
quakefs.h
|
|
|
|
quake virtual filesystem definitions
|
|
|
|
Copyright (C) 1996-1997 Id Software, Inc.
|
|
Copyright (C) 1999,2000 contributors of the QuakeForge project
|
|
Please see the file "AUTHORS" for a list of contributors
|
|
|
|
This program 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.
|
|
|
|
This program 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 this program; if not, write to:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
*/
|
|
|
|
#ifndef __QF_quakefs_h
|
|
#define __QF_quakefs_h
|
|
|
|
/** \defgroup quakefs Quake Filesystem
|
|
\ingroup utils
|
|
*/
|
|
///@{
|
|
|
|
#include "QF/qtypes.h"
|
|
#include "QF/quakeio.h"
|
|
|
|
//============================================================================
|
|
|
|
/** Simple list for file searches.
|
|
*/
|
|
typedef struct filelist_s {
|
|
char **list; ///< the actual list of files
|
|
int count; ///< the number of files in the list
|
|
int size; ///< the number of files that can be in the
|
|
///< list before reallocation is required.
|
|
} filelist_t;
|
|
|
|
/** Cached information about the current game directory. \see \ref dirconf.
|
|
*/
|
|
typedef struct gamedir_s {
|
|
const char *name; ///< the tag name built from game and gamedir
|
|
const char *gamedir; ///< the actual game dir
|
|
const char *path; ///< colon separated list of search paths
|
|
const char *gamecode; ///< name of file to load for gamecode
|
|
const char *hudtype; ///< name of the hud type
|
|
struct {
|
|
const char *def; ///< directory to which to write other files
|
|
const char *skins; ///< directory to which to write skins
|
|
const char *models; ///< directory to which to write models
|
|
const char *sound; ///< directory to which to write sounds
|
|
const char *maps; ///< directory to which to write maps
|
|
const char *shots; ///< directory to which to write screenshots
|
|
} dir;
|
|
} gamedir_t;
|
|
|
|
typedef struct vpath_s vpath_t;
|
|
|
|
typedef struct findfile_s {
|
|
const vpath_t *vpath; ///< vpath in which file was found
|
|
qboolean in_pak; ///< if true, path refers to a pak file rather
|
|
///< than a directory
|
|
const char *realname; ///< the name of the file as found (may have
|
|
///< .gz appended, or .ogg substituded for
|
|
///< .wav) does not include the path
|
|
} findfile_t;
|
|
|
|
/** Cached information about the current game directory. \see \ref dirconf.
|
|
*/
|
|
extern gamedir_t *qfs_gamedir;
|
|
|
|
/** Function type of callback called on gamedir change.
|
|
\param phase 0 = before Cache_Flush(), 1 = after Cache_Flush()
|
|
*/
|
|
typedef void gamedir_callback_t (int phase, void *data);
|
|
|
|
/** Base of the QFS user directory tree. The QFS functions, except for
|
|
QFS_FOpenFile() and _QFS_FOpenFile(), will never access a file outside of
|
|
this tree. Set via the \c fs_userpath directory.
|
|
*/
|
|
extern const char *qfs_userpath;
|
|
|
|
/** Gives information about the last file opened by the FOpenFile functions.
|
|
|
|
Set by QFS_FOpenFile() and _QFS_FOpenFile().
|
|
*/
|
|
extern findfile_t qfs_foundfile;
|
|
|
|
/** The size of the file found via QFS_FOpenFile() or _QFS_FOpenFile().
|
|
|
|
Set by QFS_FOpenFile() and _QFS_FOpenFile().
|
|
*/
|
|
extern int qfs_filesize;
|
|
|
|
struct cache_user_s;
|
|
struct dstring_s;
|
|
struct memhunk_s;
|
|
|
|
/** Initialize the Quake Filesystem.
|
|
|
|
This function initializes the \c fs_sharepath, \c fs_userpath and
|
|
\c fs_dirconf Cvars. It then loads the \ref dirconf and parses the
|
|
\c -game command line option.
|
|
|
|
\param hunk Memory pool to use for hunk-based allocations.
|
|
\param game The game type used for searching the directory
|
|
configuration. Currently, this is \"qw\" for
|
|
quakeworld clients and servers, and one of \"nq\",
|
|
\"hexen\", \"rogue\" or \"abyss\" for the netquake
|
|
clients and servers.
|
|
*/
|
|
void QFS_Init (struct memhunk_s *hunk, const char *game);
|
|
|
|
/** Change the current game directory.
|
|
|
|
The configuration for the game directory is taken from \ref dirconf.
|
|
Sets the fields in ::qfs_gamedir. Can be called at any time (and is, by
|
|
the quakeworld clients and servers).
|
|
|
|
\param gamedir The directory to which the game directory will be set.
|
|
*/
|
|
void QFS_Gamedir (const char *gamedir);
|
|
|
|
/** Search for a file in the quake file-system.
|
|
|
|
The search will begin in the \a start vpath and end in the \a end vpath.
|
|
If \a start is null, the search will begin in the vpath specified by
|
|
qfs_vpaths (ie, the first directory in the \c Path attribute
|
|
(\ref dirconf)). If \a end is null, the search will continue to the end
|
|
of the list of vpaths. If \a start and \a end are the same (and non-null),
|
|
then only the one vpath will be searched.
|
|
|
|
\note All search paths in a vpath will be searched. This keeps \QF's
|
|
directory system transparent.
|
|
|
|
\note It is a fatal error for \a end to be non-null but not in the list
|
|
of vpaths.
|
|
|
|
\warning The returned pointer is to a static instance of findfile_t and
|
|
thus will be overwritten on the next call to any of the search
|
|
functions (QFS_FindFile, QFS_FOpenFile, _QFS_FOpenFile)
|
|
|
|
\param fname The name of the file to be searched for.
|
|
\param start The first vpath (gamedir) to search.
|
|
\param end The last vpath (gamedir) to search.
|
|
\return Pointer to the findfile_t record indicating the location
|
|
of the file, or null if the file was not found.
|
|
*/
|
|
findfile_t *QFS_FindFile (const char *fname, const vpath_t *start,
|
|
const vpath_t *end);
|
|
|
|
/** Open a file from within the user directory.
|
|
|
|
If \a path attempts to leave the user directory, this function sets
|
|
errno to EACCESS and returns NULL. If \a mode indicates a write
|
|
operation, then this function will make sure that any directories
|
|
leading to the file exist.
|
|
|
|
\param path Path name of file to open, relative to ::qfs_userpath.
|
|
\param mode Mode in which to open the file. Passed through as-is to
|
|
Qopen ().
|
|
\return The file handle as returned by Qopen or NULL on error.
|
|
|
|
\note This function cannot be used to access files within a pak file.
|
|
For pak file support, use QFS_FOpenFile().
|
|
*/
|
|
QFile *QFS_Open (const char *path, const char *mode);
|
|
|
|
/** Open a file for writing.
|
|
|
|
This is a convenience wrapper for QFS_Open(). If \a zip is true, then
|
|
the file will be written uzing gzip compression if QuakeForge was built
|
|
with zlib support, otherwise the file will be written uncompressed.
|
|
|
|
\param path Path name of file to open, relative to ::qfs_userpath.
|
|
\param zip Compression control.
|
|
\return The file handle as returned by Qopen or NULL on error.
|
|
*/
|
|
QFile *QFS_WOpen (const char *path, int zip);
|
|
|
|
/** Write a block of data to a file.
|
|
|
|
This is a convenience wrapper for QFS_Open().
|
|
|
|
\param filename Path name of file to open, relative to ::qfs_userpath.
|
|
\param data Pointer to the block of data to be written.
|
|
\param len The size of the block of data, in bytes.
|
|
|
|
\note If an error occurs, this function will call Sys_Error(), aborting
|
|
the program.
|
|
*/
|
|
void QFS_WriteFile (const char *filename, const void *data, int len);
|
|
|
|
QFile *_QFS_VOpenFile (const char *filename, int zip,
|
|
const vpath_t *start, const vpath_t *end);
|
|
QFile *QFS_VOpenFile (const char *filename,
|
|
const vpath_t *start, const vpath_t *end);
|
|
|
|
/** Open a file for reading.
|
|
|
|
The file will be searched for through all the subdirectories given in the
|
|
\c Path attribute (\ref dirconf). For each directory in \c Path, this
|
|
function will check \c \${fs_userpath}/${dir} then
|
|
\${fs_sharepath}/${dir}. In each location, pak files are checked before
|
|
external files. pak files will be searched in reverse order (pak10.pak,
|
|
pak9.pak, ... pak2.pak,pak1.pak,pak0.pak). However, any file ending in
|
|
.pak will be checked whether it is a pak file.
|
|
|
|
Does name mangling for files with .gz extention and .wav-.ogg
|
|
substitution.
|
|
|
|
\param filename The name of the file to open.
|
|
\param zip If true and the file has been compressed with gzip, the
|
|
file will be opened such that it decompresses on the fly.
|
|
Otherwise, the file will be read as-is.
|
|
\return The file handle or NULL if there is an error.
|
|
*/
|
|
QFile *_QFS_FOpenFile (const char *filename, int zip);
|
|
|
|
/** Open a file for reading.
|
|
|
|
This is a convenience wrapper for _QFS_FOpenFile(). The file will
|
|
always be opened with decompression enabled. See the documentation for
|
|
_QFS_FOpenFile() for more details.
|
|
|
|
\param filename The name of the file to open.
|
|
\return The file handle pointer, or NULL if there is an error.
|
|
*/
|
|
QFile *QFS_FOpenFile (const char *filename);
|
|
|
|
/** Load a file into memory.
|
|
|
|
The file will be loaded into memory allocated from the location indicated
|
|
by \a usehunk.
|
|
|
|
\param file The handle of the file to load.
|
|
\param usehunk The location from which to allocate memory for the file's
|
|
data. Use 0.
|
|
\return Pointer to the file's data, or NULL on error.
|
|
\todo remove \a usehunk
|
|
*/
|
|
byte *QFS_LoadFile (QFile *file, int usehunk);
|
|
|
|
/** Load a file into memeory.
|
|
|
|
The file is loaded into memory allocated from the hunk.
|
|
*/
|
|
byte *QFS_LoadHunkFile (QFile *file);
|
|
|
|
/** Load a file into memeory.
|
|
|
|
This is a wrapper for QFS_LoadFile().
|
|
|
|
\deprecated This should go away soon.
|
|
*/
|
|
void QFS_LoadCacheFile (QFile *file, struct cache_user_s *cu);
|
|
|
|
/** Rename a file.
|
|
|
|
\param old_path The file to rename.
|
|
\param new_path The new name for the file.
|
|
\return 0 for success, -1 for failure.
|
|
|
|
\note The file and destination must both be within \c qfs_userpath.
|
|
*/
|
|
int QFS_Rename (const char *old_path, const char *new_path);
|
|
|
|
/** Delete a file.
|
|
|
|
\param path The file to delete.
|
|
\return 0 for success, -1 for failure.
|
|
|
|
\note The file must be within \c qfs_userpath.
|
|
*/
|
|
int QFS_Remove (const char *path);
|
|
|
|
/** Find available filename.
|
|
|
|
The filename will be of the form \c prefixXXXX.ext where \c XXXX
|
|
is a zero padded number from 0 to 9999. Should there already be 10000
|
|
files of such a pattern, then extra digits will be added.
|
|
|
|
\param filename This will be set to the available filename.
|
|
\param prefix The part of the filename preceeding the numers.
|
|
\param ext The extension to add to the filename.
|
|
\return NULL for failure (with an error message in \a filename)
|
|
or a quakeio file handle.
|
|
|
|
\note \a prefix is relative to \c qfc_userpath, as is the generated
|
|
filename.
|
|
*/
|
|
QFile *QFS_NextFile (struct dstring_s *filename, const char *prefix,
|
|
const char *ext);
|
|
|
|
/** Extract the non-extension part of the file name from the path.
|
|
|
|
\param in The path from which the name will be extracted.
|
|
\return The extracted name.
|
|
\note It is the caller's responsibility to free the extracted name.
|
|
*/
|
|
char *QFS_FileBase (const char *in);
|
|
|
|
/** Set the file extention if not already present.
|
|
|
|
If the file already has an extension, do nothing.
|
|
|
|
\param path The path to which the extension will be added.
|
|
\param extension The extension to add.
|
|
*/
|
|
void QFS_DefaultExtension (struct dstring_s *path, const char *extension);
|
|
|
|
/** Set the file extention.
|
|
|
|
If the file already has an extension, it will be replaced.
|
|
|
|
\param path The path to which the extension will be set.
|
|
\param extension The extension to set.
|
|
*/
|
|
void QFS_SetExtension (struct dstring_s *path, const char *extension);
|
|
|
|
/** Remove any extension from the path.
|
|
|
|
\param in The path from which to strip the extension.
|
|
\param out The destination of the stripped path. May be the same
|
|
as \a in.
|
|
\note No size checking is done on \a out. It use the
|
|
caller's responsibility to ensure out is large enough
|
|
to hold the stripped path. However, the stripped path
|
|
will never be longer than the original path.
|
|
*/
|
|
void QFS_StripExtension (const char *in, char *out);
|
|
|
|
/** Create a canonical path.
|
|
|
|
Convert all \c \\ to \c /, remove all \c . elements from the path and
|
|
resolve all \c foo/.. pairs.
|
|
|
|
\param pth The path to make canonical
|
|
\return The canonical path.
|
|
\note It is the caller's responsibility to free the canonical
|
|
path.
|
|
*/
|
|
char *QFS_CompressPath (const char *pth);
|
|
|
|
/** Return a pointer to the start of the filename part of the path.
|
|
|
|
\param pathname The path withing which to find the filename.
|
|
\return Pointer to the beginning of the filename. This points
|
|
inside \a pathname.
|
|
*/
|
|
const char *QFS_SkipPath (const char *pathname) __attribute__((pure));
|
|
|
|
/** Return a pointer to the start of the extention part of the path.
|
|
|
|
\param in The path withing which to find the extention.
|
|
\return Pointer to the beginning of the extention. This points
|
|
inside \a in at all times. If the path has no extension,
|
|
the returned pointer will point to the terminating nul
|
|
of the path.
|
|
*/
|
|
const char *QFS_FileExtension (const char *in) __attribute__((pure));
|
|
|
|
/** Register a callback function for when the gamedir changes.
|
|
|
|
The callbacks will be called in order of registration, in two passes.
|
|
The first pass (\c phase is 0) is before the cache has been flushed.
|
|
The second pass (\c phase is 1) is after the cache has been flushed.
|
|
|
|
\param func The function to call every time the gamedir changes via
|
|
QFS_Gamedir().
|
|
\param data Opaque data pointer passed to the callback.
|
|
*/
|
|
void QFS_GamedirCallback (gamedir_callback_t *func, void *data);
|
|
|
|
/** Create a new file list.
|
|
|
|
\return Pointer to the new file list.
|
|
*/
|
|
filelist_t *QFS_FilelistNew (void);
|
|
|
|
/** Add a single file to the file list.
|
|
|
|
If the extension of the file matches \a ext, it will be trimmed off the
|
|
file name befor the file is added to the list.
|
|
|
|
\param filelist The list to which the file is to be added.
|
|
\param fname The file which is to be added to the file list.
|
|
\param ext The extention to be stripped from the file.
|
|
\todo Should the extension stripping be done by the caller?
|
|
*/
|
|
void QFS_FilelistAdd (filelist_t *filelist, const char *fname,
|
|
const char *ext);
|
|
/** Add files from the gamedir within the specified path.
|
|
|
|
All files from the specified path in the gamedir with the given extension
|
|
will be added to the list after possibly stripping their extension.
|
|
|
|
\param list The list to which the files are to be added.
|
|
\param path The path withing the gamedir from which files are to be
|
|
added to the list.
|
|
\param ext The extension of the files to be added.
|
|
\param strip If true, the extension of the files will be stripped.
|
|
\bug can escape the quake file system
|
|
*/
|
|
void QFS_FilelistFill (filelist_t *list, const char *path, const char *ext,
|
|
int strip);
|
|
|
|
/** Free a file list.
|
|
|
|
\param list The list to be freed.
|
|
*/
|
|
void QFS_FilelistFree (filelist_t *list);
|
|
|
|
///@}
|
|
|
|
#endif//__QF_quakefs_h
|