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sys_reslocator.c
1316 lines (1143 loc) · 40.6 KB
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sys_reslocator.c
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/**\file sys_reslocator.c
*\section License
* License: GPL
* Online License Link: http://www.gnu.org/licenses/gpl.html
*
*\author Copyright © 2003-2012 Jaakko Keränen <jaakko.keranen@iki.fi>
*\author Copyright © 2006-2012 Daniel Swanson <danij@dengine.net>
*\author Copyright © 2006 Jamie Jones <jamie_jones_au@yahoo.com.au>
*
* 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 the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#ifdef WIN32
# include <direct.h>
#endif
#ifdef UNIX
# include <pwd.h>
# include <limits.h>
# include <unistd.h>
# include <sys/stat.h>
#endif
#include "de_base.h"
#include "de_console.h"
#include "de_filesys.h"
#include "m_args.h"
#include "m_misc.h"
#include "filedirectory.h"
#include "abstractresource.h"
#include "resourcenamespace.h"
#define PATH_DELIMIT_CHAR ';'
#define PATH_DELIMIT_STR ";"
#define MAX_EXTENSIONS (3)
typedef struct {
/// Default class attributed to resources of this type.
resourceclass_t defaultClass;
char* knownFileNameExtensions[MAX_EXTENSIONS];
} resourcetypeinfo_t;
/**
* @defGroup ResourceNamespaceFlags Resource Namespace Flags
* @ingroup core.
*/
/*@{*/
#define RNF_USE_VMAP 0x01 // Map resources in packages.
#define RNF_IS_DIRTY 0x80 // Filehash needs to be (re)built (avoid allocating an empty name hash).
/*@}*/
#define RESOURCENAMESPACE_MINNAMELENGTH URI_MINSCHEMELENGTH
typedef struct {
/// Unique symbolic name of this namespace (e.g., "Models").
/// Must be at least @c RESOURCENAMESPACE_MINNAMELENGTH characters long.
ddstring_t name;
/// ResourceNamespace.
resourcenamespace_t* rnamespace;
/// Associated path directory for this namespace.
FileDirectory* directory;
/// Algorithm used to compose the name of a resource in this namespace.
ddstring_t* (*composeName) (const ddstring_t* path);
byte flags; // @see resourceNamespaceFlags
} resourcenamespaceinfo_t;
static boolean inited = false;
static const resourcetypeinfo_t typeInfo[NUM_RESOURCE_TYPES] = {
/* RT_ZIP */ { RC_PACKAGE, {"pk3", "zip", 0} },
/* RT_WAD */ { RC_PACKAGE, {"wad", 0} },
/* RT_DED */ { RC_DEFINITION, {"ded", 0} },
/* RT_PNG */ { RC_GRAPHIC, {"png", 0} },
/* RT_TGA */ { RC_GRAPHIC, {"tga", 0} },
/* RT_PCX */ { RC_GRAPHIC, {"pcx", 0} },
/* RT_DMD */ { RC_MODEL, {"dmd", 0} },
/* RT_MD2 */ { RC_MODEL, {"md2", 0} },
/* RT_WAV */ { RC_SOUND, {"wav", 0} },
/* RT_OGG */ { RC_MUSIC, {"ogg", 0} },
/* RT_MP3 */ { RC_MUSIC, {"mp3", 0} },
/* RT_MOD */ { RC_MUSIC, {"mod", 0} },
/* RT_MID */ { RC_MUSIC, {"mid", 0} },
/* RT_DEH */ { RC_UNKNOWN, {"deh", 0} },
/* RT_DFN */ { RC_FONT, {"dfn", 0} }
};
// Recognized resource types (in order of importance, left to right).
#define MAX_TYPEORDER 6
static const resourcetype_t searchTypeOrder[RESOURCECLASS_COUNT][MAX_TYPEORDER] = {
/* RC_PACKAGE */ { RT_ZIP, RT_WAD, 0 }, // Favor ZIP over WAD.
/* RC_DEFINITION */ { RT_DED, 0 }, // Only DED files.
/* RC_GRAPHIC */ { RT_PNG, RT_TGA, RT_PCX, 0 }, // Favour quality.
/* RC_MODEL */ { RT_DMD, RT_MD2, 0 }, // Favour DMD over MD2.
/* RC_SOUND */ { RT_WAV, 0 }, // Only WAV files.
/* RC_MUSIC */ { RT_OGG, RT_MP3, RT_WAV, RT_MOD, RT_MID, 0 },
/* RC_FONT */ { RT_DFN, 0 } // Only DFN fonts.
};
static const ddstring_t defaultNamespaceForClass[RESOURCECLASS_COUNT] = {
/* RC_PACKAGE */ { PACKAGES_RESOURCE_NAMESPACE_NAME },
/* RC_DEFINITION */ { DEFINITIONS_RESOURCE_NAMESPACE_NAME },
/* RC_GRAPHIC */ { GRAPHICS_RESOURCE_NAMESPACE_NAME },
/* RC_MODEL */ { MODELS_RESOURCE_NAMESPACE_NAME },
/* RC_SOUND */ { SOUNDS_RESOURCE_NAMESPACE_NAME },
/* RC_MUSIC */ { MUSIC_RESOURCE_NAMESPACE_NAME },
/* RC_FONT */ { FONTS_RESOURCE_NAMESPACE_NAME }
};
static resourcenamespaceinfo_t* namespaces = 0;
static uint numNamespaces = 0;
static void errorIfNotInited(const char* callerName)
{
if(inited) return;
Con_Error("%s: resource locator module is not presently initialized.", callerName);
// Unreachable. Prevents static analysers from getting rather confused, poor things.
exit(1);
}
static __inline const resourcetypeinfo_t* getInfoForResourceType(resourcetype_t type)
{
assert(VALID_RESOURCE_TYPE(type));
return &typeInfo[((uint)type)-1];
}
static __inline resourcenamespaceinfo_t* getNamespaceInfoForId(resourcenamespaceid_t rni)
{
errorIfNotInited("getNamespaceForId");
if(!F_IsValidResourceNamespaceId(rni))
Con_Error("getNamespaceForId: Invalid namespace id %i.", (int)rni);
return &namespaces[((uint)rni)-1];
}
static resourcenamespaceid_t findNamespaceId(resourcenamespace_t* rnamespace)
{
if(rnamespace)
{
uint i;
for(i = 0; i < numNamespaces; ++i)
{
resourcenamespaceinfo_t* info = &namespaces[i];
if(info->rnamespace == rnamespace)
return (resourcenamespaceid_t)(i+1);
}
}
return 0;
}
static resourcenamespaceid_t findNamespaceForName(const char* name)
{
if(name && name[0])
{
uint i;
for(i = 0; i < numNamespaces; ++i)
{
resourcenamespaceinfo_t* info = &namespaces[i];
if(!stricmp(Str_Text(&info->name), name))
return (resourcenamespaceid_t)(i+1);
}
}
return 0;
}
static void destroyAllNamespaces(void)
{
uint i;
if(numNamespaces == 0) return;
for(i = 0; i < numNamespaces; ++i)
{
resourcenamespaceinfo_t* info = &namespaces[i];
if(info->directory) FileDirectory_Delete(info->directory);
ResourceNamespace_Delete(info->rnamespace);
Str_Free(&info->name);
}
free(namespaces);
namespaces = 0;
}
static void resetAllNamespaces(void)
{
resourcenamespaceid_t rni;
for(rni = 1; rni < numNamespaces+1; ++rni)
{
F_ResetResourceNamespace(rni);
}
}
static void addResourceToNamespace(resourcenamespaceinfo_t* rnInfo,
PathDirectoryNode* node)
{
ddstring_t* name;
assert(rnInfo && node);
name = rnInfo->composeName(PathDirectory_GetFragment(PathDirectoryNode_Directory(node), node));
if(ResourceNamespace_Add(rnInfo->rnamespace, name, node, NULL))
{
// We will need to rebuild this namespace (if we aren't already doing so,
// in the case of auto-populated namespaces built from FileDirectorys).
rnInfo->flags |= RNF_IS_DIRTY;
}
Str_Delete(name);
}
static int addFileResourceWorker(PathDirectoryNode* node, void* paramaters)
{
resourcenamespaceinfo_t* rnInfo = (resourcenamespaceinfo_t*) paramaters;
// We are only interested in leafs (i.e., files and not directories).
if(PathDirectoryNode_Type(node) == PT_LEAF)
{
addResourceToNamespace(rnInfo, node);
}
return 0; // Continue adding.
}
static void rebuildResourceNamespace(resourcenamespaceinfo_t* rnInfo)
{
/*#if _DEBUG
uint startTime;
#endif*/
ddstring_t* searchPaths;
assert(rnInfo);
if(!(rnInfo->flags & RNF_IS_DIRTY)) return;
/*#if _DEBUG
VERBOSE( Con_Message("Rebuilding rnamespace '%s'...\n", Str_Text(&rnInfo->name)) )
VERBOSE2( startTime = Sys_GetRealTime() )
#endif*/
ResourceNamespace_Clear(rnInfo->rnamespace);
FileDirectory_Clear(rnInfo->directory);
searchPaths = ResourceNamespace_ComposeSearchPathList(rnInfo->rnamespace);
if(searchPaths)
{
if(!Str_IsEmpty(searchPaths))
{
/*#if _DEBUG
VERBOSE2( Con_PrintPathList(Str_Text(searchPaths)) )
#endif*/
// (Re)populate the directory and insert found paths into the resource namespace.
// \todo It should not be necessary for a unique directory per namespace.
FileDirectory_AddPathList3(rnInfo->directory, Str_Text(searchPaths), addFileResourceWorker, (void*)rnInfo);
/*#if _DEBUG
VERBOSE2( FileDirectory_Print(rnInfo->directory) )
#endif*/
}
Str_Delete(searchPaths);
}
rnInfo->flags &= ~RNF_IS_DIRTY;
/*#if _DEBUG
VERBOSE2( ResourceNamespace_Print(rnInfo->rnamespace) )
VERBOSE2( Con_Message(" Done in %.2f seconds.\n", (Sys_GetRealTime() - startTime) / 1000.0f) )
#endif*/
}
typedef struct {
const char* path;
char delimiter;
PathMap searchPattern;
boolean searchInited;
PathDirectoryNode* foundNode;
} findresourceinnamespaceworker_params_t;
static int findResourceInNamespaceWorker(PathDirectoryNode* node, void* paramaters)
{
findresourceinnamespaceworker_params_t* p = (findresourceinnamespaceworker_params_t*)paramaters;
assert(node && p);
// Are we yet to initialize the search?
if(!p->searchInited)
{
PathMap_Initialize2(&p->searchPattern, p->path, p->delimiter);
p->searchInited = true;
}
// Stop iteration of resources as soon as a match is found.
if(PathDirectoryNode_MatchDirectory(node, PCF_NO_BRANCH, &p->searchPattern, NULL))
{
p->foundNode = node;
return 1;
}
return 0; // Continue iteration.
}
/**
* Find a named resource in this namespace.
*
* @param name Name of the resource being searched for.
* @param searchPath Relative or absolute path to the resource.
* @param searchDelimiter Fragments of @a searchPath are delimited by this character.
* @param foundPath If not @c NULL and a path is found, it is written back here.
* @param foundDelimiter Delimiter to be used when composing @a foundPath.
* @return @c true= A resource was found.
*/
static boolean findResourceInNamespace(resourcenamespaceinfo_t* rnInfo, const ddstring_t* name,
const ddstring_t* searchPath, char delimiter, ddstring_t* foundPath, char foundDelimiter)
{
boolean found = false;
assert(rnInfo && name && searchPath);
if(!Str_IsEmpty(searchPath))
{
findresourceinnamespaceworker_params_t p;
// Ensure the namespace is up to date.
rebuildResourceNamespace(rnInfo);
// There may not be any matching named resources, so we defer initialization
// of the PathMap until the first name-match is found.
p.path = Str_Text(searchPath);
p.delimiter = delimiter;
p.searchInited = false;
p.foundNode = NULL;
// Perform the search.
if(found = ResourceNamespace_Iterate2(rnInfo->rnamespace, name, findResourceInNamespaceWorker, (void*)&p))
{
// Does the caller want to know the matched path?
if(foundPath)
{
PathDirectoryNode* node = p.foundNode;
PathDirectory_ComposePath(PathDirectoryNode_Directory(node), node, foundPath, NULL, foundDelimiter);
}
}
// Cleanup.
if(p.searchInited) PathMap_Destroy(&p.searchPattern);
}
return found;
}
static boolean tryFindResource2(resourceclass_t rclass, const ddstring_t* rawSearchPath,
ddstring_t* foundPath, resourcenamespaceinfo_t* rnamespaceInfo)
{
ddstring_t searchPath;
assert(inited && rawSearchPath && !Str_IsEmpty(rawSearchPath));
Str_Init(&searchPath);
F_FixSlashes(&searchPath, rawSearchPath);
// Is there a namespace we should use?
if(rnamespaceInfo)
{
ddstring_t* name = rnamespaceInfo->composeName(&searchPath);
if(findResourceInNamespace(rnamespaceInfo, name, &searchPath, '/', foundPath, '/'))
{
Str_Free(&searchPath);
Str_Delete(name);
if(foundPath) F_PrependBasePath(foundPath, foundPath);
return true;
}
Str_Delete(name);
}
if(0 != F_Access(Str_Text(&searchPath)))
{
if(foundPath) F_PrependBasePath(foundPath, &searchPath);
Str_Free(&searchPath);
return true;
}
Str_Free(&searchPath);
return false;
}
/**
* @param flags @see resourceLocationFlags
*/
static boolean tryFindResource(int flags, resourceclass_t rclass, const ddstring_t* searchPath,
ddstring_t* foundPath, resourcenamespaceinfo_t* rnamespaceInfo)
{
const resourcetype_t* typeIter;
ddstring_t path2, tmp;
boolean found;
const char* ptr;
assert(inited && searchPath && !Str_IsEmpty(searchPath));
// If an extension was specified, first look for resources of the same type.
ptr = F_FindFileExtension(Str_Text(searchPath));
if(ptr && *ptr != '*')
{
if(tryFindResource2(rclass, searchPath, foundPath, rnamespaceInfo))
return true;
// If we are looking for a particular resource type, get out of here.
if(flags & RLF_MATCH_EXTENSION) return false;
}
if(!(VALID_RESOURCE_CLASS(rclass) && searchTypeOrder[rclass][0] != RT_NONE)) return false;
/**
* Lets try some different name patterns (i.e., resource types) known to us.
*/
// Create a copy of the searchPath minus file extension.
Str_Init(&path2);
Str_Reserve(&path2, Str_Length(searchPath)+1/*period*/);
if(ptr)
{
Str_PartAppend(&path2, Str_Text(searchPath), 0, ptr - Str_Text(searchPath));
}
else
{
Str_Copy(&path2, searchPath);
Str_AppendChar(&path2, '.');
}
Str_Init(&tmp);
Str_Reserve(&tmp, Str_Length(&path2) +5/*max expected extension length*/);
found = false;
typeIter = searchTypeOrder[rclass];
do
{
const resourcetypeinfo_t* typeInfo = getInfoForResourceType(*typeIter);
if(typeInfo->knownFileNameExtensions[0])
{
char* const* ext = typeInfo->knownFileNameExtensions;
do
{
Str_Clear(&tmp);
Str_Appendf(&tmp, "%s%s", Str_Text(&path2), *ext);
found = tryFindResource2(rclass, &tmp, foundPath, rnamespaceInfo);
} while(!found && *(++ext));
}
} while(!found && *(++typeIter) != RT_NONE);
Str_Free(&tmp);
Str_Free(&path2);
return found;
}
/**
* @param flags @see resourceLocationFlags
*/
static boolean findResource2(resourceclass_t rclass, const ddstring_t* searchPath,
ddstring_t* foundPath, int flags, const ddstring_t* optionalSuffix, resourcenamespaceinfo_t* rnamespaceInfo)
{
boolean found = false;
assert(inited && searchPath && !Str_IsEmpty(searchPath));
#if _DEBUG
VERBOSE2( Con_Message("Using rnamespace '%s'...\n", rnamespaceInfo? Str_Text(&rnamespaceInfo->name) : "None") )
#endif
// First try with the optional suffix.
if(optionalSuffix)
{
const char* ptr;
ddstring_t fn;
Str_Init(&fn);
// Has an extension been specified?
ptr = F_FindFileExtension(Str_Text(searchPath));
if(ptr && *ptr != '*')
{
char ext[10];
strncpy(ext, ptr, 10);
Str_PartAppend(&fn, Str_Text(searchPath), 0, ptr - 1 - Str_Text(searchPath));
Str_Appendf(&fn, "%s%s", Str_Text(optionalSuffix), ext);
}
else
{
Str_Appendf(&fn, "%s%s", Str_Text(searchPath), Str_Text(optionalSuffix));
}
found = tryFindResource(flags, rclass, &fn, foundPath, rnamespaceInfo);
Str_Free(&fn);
}
// Try without a suffix.
if(!found)
found = tryFindResource(flags, rclass, searchPath, foundPath, rnamespaceInfo);
return found;
}
/**
* @param flags @see resourceLocationFlags
*/
static int findResource(resourceclass_t rclass, const Uri* const* list,
ddstring_t* foundPath, int flags, const ddstring_t* optionalSuffix)
{
uint result = 0, n = 1;
const Uri* const* ptr;
assert(inited && list && (rclass == RC_UNKNOWN || VALID_RESOURCE_CLASS(rclass)));
for(ptr = list; *ptr; ptr++, n++)
{
const Uri* searchPath = *ptr;
ddstring_t* resolvedPath;
// Ignore incomplete paths.
resolvedPath = Uri_Resolved(searchPath);
if(!resolvedPath) continue;
// If this is an absolute path, locate using it.
if(F_IsAbsolute(resolvedPath))
{
if(findResource2(rclass, resolvedPath, foundPath, flags, optionalSuffix, NULL/*no namespace*/))
result = n;
}
else
{
// Probably a relative path. Has a namespace identifier been included?
if(!Str_IsEmpty(Uri_Scheme(searchPath)))
{
resourcenamespaceid_t rni = F_SafeResourceNamespaceForName(Str_Text(Uri_Scheme(searchPath)));
if(rni)
{
resourcenamespaceinfo_t* rnamespaceInfo = getNamespaceInfoForId(rni);
if(findResource2(rclass, resolvedPath, foundPath, flags, optionalSuffix, rnamespaceInfo))
result = n;
}
#if _DEBUG
else
{
ddstring_t* rawPath = Uri_ToString(searchPath);
Con_Message("Warning:findResource: Unknown namespace in searchPath \"%s\", using default for %s.\n", Str_Text(rawPath), F_ResourceClassStr(rclass));
Str_Delete(rawPath);
}
#endif
}
}
Str_Delete(resolvedPath);
if(result) break;
}
return result;
}
ddstring_t* F_ComposeHashNameForFilePath(const ddstring_t* filePath)
{
ddstring_t* hashName = Str_New();
F_FileName(hashName, Str_Text(filePath));
return hashName;
}
resourcenamespace_namehash_key_t F_HashKeyForAlphaNumericNameIgnoreCase(const ddstring_t* name)
{
resourcenamespace_namehash_key_t key = 0;
byte op = 0;
const char* c;
assert(name);
for(c = Str_Text(name); *c; c++)
{
switch(op)
{
case 0: key ^= tolower(*c); ++op; break;
case 1: key *= tolower(*c); ++op; break;
case 2: key -= tolower(*c); op=0; break;
}
}
return key % RESOURCENAMESPACE_HASHSIZE;
}
static void createPackagesResourceNamespace(void)
{
ddstring_t** doomWadPaths = 0, *doomWadDir = 0;
uint doomWadPathsCount = 0, searchPathsCount, idx;
resourcenamespace_t* rnamespace;
FileDirectory* directory;
Uri** searchPaths;
// Is the DOOMWADPATH environment variable in use?
if(!ArgCheck("-nodoomwadpath") && getenv("DOOMWADPATH"))
{
#if WIN32
# define PATH_DELIMITER_CHAR ';'
#else
# define PATH_DELIMITER_CHAR ':'
#endif
#define ADDDOOMWADPATH(path) \
{ \
Str_Strip(path); \
if(!Str_IsEmpty(path) && F_IsAbsolute(path)) \
{ \
char last = Str_RAt(path, 0); \
ddstring_t* pathCopy = Str_New(); \
F_FixSlashes(pathCopy, path); \
F_AppendMissingSlash(pathCopy); \
if(verbose >= 1) \
Con_Message(" %i: %s\n", n, F_PrettyPath(Str_Text(pathCopy))); \
doomWadPaths = realloc(doomWadPaths, sizeof(*doomWadPaths) * ++doomWadPathsCount); \
doomWadPaths[doomWadPathsCount-1] = pathCopy; \
} \
}
ddstring_t fullString; Str_Init(&fullString);
Str_Set(&fullString, getenv("DOOMWADPATH"));
Str_Strip(&fullString);
if(!Str_IsEmpty(&fullString))
{
ddstring_t path;
// Split into paths.
const char* c = Str_Text(&fullString);
int n;
VERBOSE( Con_Message("Using DOOMWADPATH:\n") )
Str_Init(&path);
n = 0;
while((c = Str_CopyDelim2(&path, c, PATH_DELIMITER_CHAR, CDF_OMIT_DELIMITER))) // Get the next path.
{
ADDDOOMWADPATH(&path)
n++;
}
// Add the last path.
if(!Str_IsEmpty(&path))
{
ADDDOOMWADPATH(&path)
}
Str_Free(&path);
}
Str_Free(&fullString);
#undef ADDDOOMWADPATH
#undef PATH_DELIMITER_CHAR
}
// Is the DOOMWADDIR environment variable in use?
if(!ArgCheck("-nodoomwaddir") && getenv("DOOMWADDIR"))
{
doomWadDir = Str_New(); Str_Set(doomWadDir, getenv("DOOMWADDIR"));
Str_Strip(doomWadDir);
F_FixSlashes(doomWadDir, doomWadDir);
if(Str_IsEmpty(doomWadDir) || !F_IsAbsolute(doomWadDir))
{
Str_Delete(doomWadDir);
doomWadDir = 0;
}
else
{
F_AppendMissingSlash(doomWadDir);
VERBOSE( Con_Message("Using DOOMWADDIR: %s\n", F_PrettyPath(Str_Text(doomWadDir))) )
}
}
// Construct the search path list.
searchPathsCount = 2 + doomWadPathsCount + (doomWadDir != 0? 1 : 0);
if((searchPaths = malloc(sizeof(*searchPaths) * searchPathsCount)) == 0)
Con_Error("createPackagesResourceNamespace: Failed on allocation of %lu bytes.",
(unsigned long) (sizeof(*searchPaths) * searchPathsCount));
idx = 0;
// Add the default paths.
searchPaths[idx++] = Uri_NewWithPath2("$(App.DataPath)/", RC_NULL);
searchPaths[idx++] = Uri_NewWithPath2("$(Game.DataPath)/", RC_NULL);
// Add any paths from the DOOMWADPATH environment variable.
if(doomWadPaths != 0)
{
uint i;
for(i = 0; i < doomWadPathsCount; ++i)
{
searchPaths[idx++] = Uri_NewWithPath2(Str_Text(doomWadPaths[i]), RC_NULL);
Str_Delete(doomWadPaths[i]);
}
free(doomWadPaths);
}
// Add the path from the DOOMWADDIR environment variable.
if(doomWadDir != 0)
{
searchPaths[idx++] = Uri_NewWithPath2(Str_Text(doomWadDir), RC_NULL);
Str_Delete(doomWadDir);
}
directory = FileDirectory_New();
rnamespace = F_CreateResourceNamespace(PACKAGES_RESOURCE_NAMESPACE_NAME, directory,
F_ComposeHashNameForFilePath, F_HashKeyForFilePathHashName, 0);
if(searchPathsCount != 0)
{
uint i;
for(i = 0; i < searchPathsCount; ++i)
{
ResourceNamespace_AddSearchPath(rnamespace, 0, searchPaths[i], SPG_DEFAULT);
}
}
for(idx = 0; idx < searchPathsCount; ++idx)
Uri_Delete(searchPaths[idx]);
free(searchPaths);
}
void F_CreateNamespacesForFileResourcePaths(void)
{
#define NAMESPACEDEF_MAX_SEARCHPATHS 5
struct namespacedef_s {
const char* name;
const char* optOverridePath;
const char* optFallbackPath;
byte flags; /// @see resourceNamespaceFlags
int searchPathFlags; /// @see searchPathFlags
const char* searchPaths[NAMESPACEDEF_MAX_SEARCHPATHS];
} defs[] = {
{ DEFINITIONS_RESOURCE_NAMESPACE_NAME, NULL, NULL, 0, 0,
{ "$(Game.DefsPath)/$(Game.IdentityKey)/", "$(Game.DefsPath)/", "$(App.DefsPath)/" }
},
{ GRAPHICS_RESOURCE_NAMESPACE_NAME, "-gfxdir2", "-gfxdir", 0, 0,
{ "$(App.DataPath)/graphics/" }
},
{ MODELS_RESOURCE_NAMESPACE_NAME, "-modeldir2", "-modeldir", RNF_USE_VMAP, 0,
{ "$(Game.DataPath)/models/$(Game.IdentityKey)/", "$(Game.DataPath)/models/" }
},
{ SOUNDS_RESOURCE_NAMESPACE_NAME, "-sfxdir2", "-sfxdir", RNF_USE_VMAP, SPF_NO_DECEND,
{ "$(Game.DataPath)/sfx/$(Game.IdentityKey)/", "$(Game.DataPath)/sfx/" }
},
{ MUSIC_RESOURCE_NAMESPACE_NAME, "-musdir2", "-musdir", RNF_USE_VMAP, SPF_NO_DECEND,
{ "$(Game.DataPath)/music/$(Game.IdentityKey)/", "$(Game.DataPath)/music/" }
},
{ TEXTURES_RESOURCE_NAMESPACE_NAME, "-texdir2", "-texdir", RNF_USE_VMAP, SPF_NO_DECEND,
{ "$(Game.DataPath)/textures/$(Game.IdentityKey)/", "$(Game.DataPath)/textures/" }
},
{ FLATS_RESOURCE_NAMESPACE_NAME, "-flatdir2", "-flatdir", RNF_USE_VMAP, SPF_NO_DECEND,
{ "$(Game.DataPath)/flats/$(Game.IdentityKey)/", "$(Game.DataPath)/flats/" }
},
{ PATCHES_RESOURCE_NAMESPACE_NAME, "-patdir2", "-patdir", RNF_USE_VMAP, SPF_NO_DECEND,
{ "$(Game.DataPath)/patches/$(Game.IdentityKey)/", "$(Game.DataPath)/patches/" }
},
{ LIGHTMAPS_RESOURCE_NAMESPACE_NAME, "-lmdir2", "-lmdir", RNF_USE_VMAP, 0,
{ "$(Game.DataPath)/lightmaps/" }
},
{ FONTS_RESOURCE_NAMESPACE_NAME, "-fontdir2", "-fontdir", RNF_USE_VMAP, SPF_NO_DECEND,
{ "$(Game.DataPath)/fonts/$(Game.IdentityKey)/", "$(Game.DataPath)/fonts/", "$(App.DataPath)/fonts/" }
},
{ NULL }
};
Uri* uri = Uri_New();
// Setup of the Packages namespace is somewhat more involved...
createPackagesResourceNamespace();
// Setup the rest...
{ size_t i;
for(i = 0; defs[i].name; ++i)
{
uint j, searchPathCount;
struct namespacedef_s* def = &defs[i];
FileDirectory* directory = FileDirectory_New();
resourcenamespace_t* rnamespace = F_CreateResourceNamespace(def->name, directory,
F_ComposeHashNameForFilePath, F_HashKeyForFilePathHashName, def->flags);
searchPathCount = 0;
while(def->searchPaths[searchPathCount] && ++searchPathCount < NAMESPACEDEF_MAX_SEARCHPATHS)
{}
for(j = 0; j < searchPathCount; ++j)
{
Uri_SetUri3(uri, def->searchPaths[j], RC_NULL);
ResourceNamespace_AddSearchPath(rnamespace, def->searchPathFlags, uri, SPG_DEFAULT);
}
if(def->optOverridePath && ArgCheckWith(def->optOverridePath, 1))
{
const char* path = ArgNext();
ddstring_t path2;
// Override paths are added in reverse order.
Str_Init(&path2);
Str_Appendf(&path2, "%s/$(Game.IdentityKey)", path);
Uri_SetUri3(uri, Str_Text(&path2), RC_NULL);
ResourceNamespace_AddSearchPath(rnamespace, def->searchPathFlags, uri, SPG_OVERRIDE);
Uri_SetUri3(uri, path, RC_NULL);
ResourceNamespace_AddSearchPath(rnamespace, def->searchPathFlags, uri, SPG_OVERRIDE);
Str_Free(&path2);
}
if(def->optFallbackPath && ArgCheckWith(def->optFallbackPath, 1))
{
Uri_SetUri3(uri, ArgNext(), RC_NULL);
ResourceNamespace_AddSearchPath(rnamespace, def->searchPathFlags, uri, SPG_FALLBACK);
}
}}
Uri_Delete(uri);
#undef NAMESPACEDEF_MAX_SEARCHPATHS
}
void F_InitResourceLocator(void)
{
// Allow re-init.
inited = true;
}
void F_ShutdownResourceLocator(void)
{
if(!inited)
return;
destroyAllNamespaces();
inited = false;
}
void F_ResetAllResourceNamespaces(void)
{
errorIfNotInited("F_ResetAllResourceNamespaces");
resetAllNamespaces();
}
void F_ResetResourceNamespace(resourcenamespaceid_t rni)
{
resourcenamespaceinfo_t* info;
if(!F_IsValidResourceNamespaceId(rni)) return;
info = getNamespaceInfoForId(rni);
ResourceNamespace_ClearSearchPaths(info->rnamespace, SPG_EXTRA);
ResourceNamespace_Clear(info->rnamespace);
if(info->directory)
{
FileDirectory_Clear(info->directory);
}
info->flags |= RNF_IS_DIRTY;
}
resourcenamespace_t* F_ToResourceNamespace(resourcenamespaceid_t rni)
{
return getNamespaceInfoForId(rni)->rnamespace;
}
resourcenamespaceid_t F_SafeResourceNamespaceForName(const char* name)
{
errorIfNotInited("F_SafeResourceNamespaceForName");
return findNamespaceForName(name);
}
resourcenamespaceid_t F_ResourceNamespaceForName(const char* name)
{
resourcenamespaceid_t result = F_SafeResourceNamespaceForName(name);
if(result == 0)
Con_Error("F_ResourceNamespaceForName: Failed to locate resource namespace \"%s\".", name);
return result;
}
uint F_NumResourceNamespaces(void)
{
errorIfNotInited("F_NumResourceNamespaces");
return numNamespaces;
}
boolean F_IsValidResourceNamespaceId(int val)
{
errorIfNotInited("F_IsValidResourceNamespaceId");
return (boolean)(val>0 && (unsigned)val < (F_NumResourceNamespaces()+1)? 1 : 0);
}
resourcenamespace_t* F_CreateResourceNamespace(const char* name, FileDirectory* directory,
ddstring_t* (*composeNameFunc) (const ddstring_t* path),
resourcenamespace_namehash_key_t (*hashNameFunc) (const ddstring_t* name), byte flags)
{
resourcenamespaceinfo_t* info;
resourcenamespace_t* rn;
assert(name && directory && composeNameFunc);
errorIfNotInited("F_CreateResourceNamespace");
if(strlen(name) < RESOURCENAMESPACE_MINNAMELENGTH)
Con_Error("F_CreateResourceNamespace: Invalid name '%s' (min length:%i)",
name, (int)RESOURCENAMESPACE_MINNAMELENGTH);
rn = ResourceNamespace_New(hashNameFunc);
// Add this new namespace to the global list.
namespaces = (resourcenamespaceinfo_t*) realloc(namespaces, sizeof *namespaces * ++numNamespaces);
if(!namespaces)
Con_Error("F_CreateResourceNamespace: Failed on (re)allocation of %lu bytes for new resource namespace\n",
(unsigned long) sizeof *namespaces * numNamespaces);
info = &namespaces[numNamespaces-1];
Str_Init(&info->name);
Str_Set(&info->name, name);
info->rnamespace = rn;
info->directory = directory;
info->composeName = composeNameFunc;
info->flags = flags | RNF_IS_DIRTY;
return rn;
}
boolean F_AddSearchPathToResourceNamespace(resourcenamespaceid_t rni, int flags,
const Uri* searchPath, resourcenamespace_searchpathgroup_t group)
{
resourcenamespaceinfo_t* info;
errorIfNotInited("F_AddSearchPathToResourceNamespace");
info = getNamespaceInfoForId(rni);
if(ResourceNamespace_AddSearchPath(info->rnamespace, flags, searchPath, group))
{
info->flags |= RNF_IS_DIRTY;
return true;
}
return false;
}
const ddstring_t* F_ResourceNamespaceName(resourcenamespaceid_t rni)
{
return &(getNamespaceInfoForId(rni))->name;
}
Uri** F_CreateUriList2(resourceclass_t rclass, const char* searchPaths,
size_t* count)
{
#define FIXEDSIZE (8)
Uri** list = 0, *localFixedList[FIXEDSIZE];
size_t numPaths = 0, n = 0;
ddstring_t buf;
const char* p;
if(!searchPaths || !searchPaths[0])
{
if(count)
*count = 0;
return 0;
}
Str_Init(&buf);
numPaths = n = 0;
p = searchPaths;
do
{
if(0 != numPaths)
{ // Prepare for another round.
Str_Clear(&buf);
}
for(; *p && *p != PATH_DELIMIT_CHAR; ++p)
{
Str_PartAppend(&buf, p, 0, 1);
}
// Skip past the delimiter if present.
if(*p) ++p;
if(0 != Str_Length(&buf))
{ // A new path was parsed; add it to the list.
if(n == FIXEDSIZE)
{
list = realloc(list, sizeof(*list) * (numPaths + 1));
memcpy(list + (numPaths - FIXEDSIZE), localFixedList, sizeof(*list) * FIXEDSIZE);
n = 0;
}
localFixedList[n++] = Uri_NewWithPath2(Str_Text(&buf), rclass);
++numPaths;
}
} while(*p);
if(numPaths <= FIXEDSIZE)
{
list = malloc(sizeof(*list) * (numPaths + 1));
memcpy(list, localFixedList, sizeof(*list) * numPaths);
}
else if(n > 1)
{
list = realloc(list, sizeof(*list) * (numPaths + 1));
memcpy(list + numPaths - n, localFixedList, sizeof(*list) * n);
}
else
{
list[numPaths-1] = localFixedList[0];
}
list[numPaths] = 0; // Terminate.
Str_Free(&buf);
if(count)
*count = numPaths;
return list;
#undef FIXEDSIZE
}
Uri** F_CreateUriList(resourceclass_t rclass, const char* searchPaths)
{