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vcmi/lib/filesystem/Filesystem.cpp
Ivan Savenko b87897096c Filesystem handling is now more flexible
- removed CResourceLoader class in favor of one that implements resource loader interface
- removed global pool of files, in favour of more dynamic approach
- renamed some files to match current situation
All these changes are needed mostly for future mod manager + .zip support
2013-07-28 14:49:50 +00:00

317 lines
9.2 KiB
C++

#include "StdInc.h"
#include "Filesystem.h"
#include "CFileInfo.h"
#include "CArchiveLoader.h"
#include "CFilesystemLoader.h"
#include "AdapterLoaders.h"
//For filesystem initialization
#include "../JsonNode.h"
#include "../GameConstants.h"
#include "../VCMIDirs.h"
#include "../CStopWatch.h"
CFilesystemList * CResourceHandler::resourceLoader = nullptr;
CFilesystemList * CResourceHandler::initialLoader = nullptr;
ResourceID::ResourceID()
:type(EResType::OTHER)
{
}
ResourceID::ResourceID(std::string name)
{
CFileInfo info(std::move(name));
setName(info.getStem());
setType(info.getType());
}
ResourceID::ResourceID(std::string name, EResType::Type type)
{
setName(std::move(name));
setType(type);
}
std::string ResourceID::getName() const
{
return name;
}
EResType::Type ResourceID::getType() const
{
return type;
}
void ResourceID::setName(std::string name)
{
this->name = std::move(name);
size_t dotPos = this->name.find_last_of("/.");
if(dotPos != std::string::npos && this->name[dotPos] == '.')
this->name.erase(dotPos);
// strangely enough but this line takes 40-50% of filesystem loading time
boost::to_upper(this->name);
}
void ResourceID::setType(EResType::Type type)
{
this->type = type;
}
void CResourceHandler::clear()
{
delete resourceLoader;
delete initialLoader;
}
EResType::Type EResTypeHelper::getTypeFromExtension(std::string extension)
{
boost::to_upper(extension);
static const std::map<std::string, EResType::Type> stringToRes =
boost::assign::map_list_of
(".TXT", EResType::TEXT)
(".JSON", EResType::TEXT)
(".DEF", EResType::ANIMATION)
(".MSK", EResType::MASK)
(".MSG", EResType::MASK)
(".H3C", EResType::CAMPAIGN)
(".H3M", EResType::MAP)
(".FNT", EResType::BMP_FONT)
(".TTF", EResType::TTF_FONT)
(".BMP", EResType::IMAGE)
(".JPG", EResType::IMAGE)
(".PCX", EResType::IMAGE)
(".PNG", EResType::IMAGE)
(".TGA", EResType::IMAGE)
(".WAV", EResType::SOUND)
(".82M", EResType::SOUND)
(".SMK", EResType::VIDEO)
(".BIK", EResType::VIDEO)
(".MJPG", EResType::VIDEO)
(".MPG", EResType::VIDEO)
(".AVI", EResType::VIDEO)
(".MP3", EResType::MUSIC)
(".OGG", EResType::MUSIC)
(".LOD", EResType::ARCHIVE_LOD)
(".PAC", EResType::ARCHIVE_LOD)
(".VID", EResType::ARCHIVE_VID)
(".SND", EResType::ARCHIVE_SND)
(".PAL", EResType::PALETTE)
(".VCGM1", EResType::CLIENT_SAVEGAME)
(".VSGM1", EResType::SERVER_SAVEGAME)
(".ERM", EResType::ERM)
(".ERT", EResType::ERT)
(".ERS", EResType::ERS);
auto iter = stringToRes.find(extension);
if (iter == stringToRes.end())
return EResType::OTHER;
return iter->second;
}
std::string EResTypeHelper::getEResTypeAsString(EResType::Type type)
{
#define MAP_ENUM(value) (EResType::value, #value)
static const std::map<EResType::Type, std::string> stringToRes = boost::assign::map_list_of
MAP_ENUM(TEXT)
MAP_ENUM(ANIMATION)
MAP_ENUM(MASK)
MAP_ENUM(CAMPAIGN)
MAP_ENUM(MAP)
MAP_ENUM(BMP_FONT)
MAP_ENUM(TTF_FONT)
MAP_ENUM(IMAGE)
MAP_ENUM(VIDEO)
MAP_ENUM(SOUND)
MAP_ENUM(MUSIC)
MAP_ENUM(ARCHIVE_LOD)
MAP_ENUM(ARCHIVE_SND)
MAP_ENUM(ARCHIVE_VID)
MAP_ENUM(PALETTE)
MAP_ENUM(CLIENT_SAVEGAME)
MAP_ENUM(SERVER_SAVEGAME)
MAP_ENUM(DIRECTORY)
MAP_ENUM(ERM)
MAP_ENUM(ERT)
MAP_ENUM(ERS)
MAP_ENUM(OTHER);
#undef MAP_ENUM
auto iter = stringToRes.find(type);
assert(iter != stringToRes.end());
return iter->second;
}
void CResourceHandler::initialize()
{
//recurse only into specific directories
auto recurseInDir = [](std::string URI, int depth)
{
ResourceID ID(URI, EResType::DIRECTORY);
for(auto & loader : initialLoader->getResourcesWithName(ID))
{
auto filename = loader->getResourceName(ID);
if (filename)
{
auto dir = new CFilesystemLoader(URI + "/", *filename, depth, true);
initialLoader->addLoader(dir, false);
}
}
};
//temporary filesystem that will be used to initialize main one.
//used to solve several case-sensivity issues like Mp3 vs MP3
initialLoader = new CFilesystemList;
resourceLoader = new CFilesystemList;
for (auto & path : VCMIDirs::get().dataPaths())
initialLoader->addLoader(new CFilesystemLoader("", path, 0, true), false);
if (VCMIDirs::get().dataPaths().back() != VCMIDirs::get().userDataPath())
initialLoader->addLoader(new CFilesystemLoader("", VCMIDirs::get().userDataPath(), 0, true), false);
recurseInDir("CONFIG", 0);// look for configs
recurseInDir("DATA", 0); // look for archives
//TODO: improve mod loading process so depth 2 will no longer be needed
recurseInDir("MODS", 2); // look for mods. Depth 2 is required for now but won't cause speed issues if no mods present
}
void CResourceHandler::loadDirectory(const std::string &prefix, const std::string &mountPoint, const JsonNode & config)
{
std::string URI = prefix + config["path"].String();
bool writeable = config["writeable"].Bool();
int depth = 16;
if (!config["depth"].isNull())
depth = config["depth"].Float();
ResourceID resID(URI, EResType::DIRECTORY);
for(auto & loader : initialLoader->getResourcesWithName(resID))
{
auto filename = loader->getResourceName(resID);
resourceLoader->addLoader(new CFilesystemLoader(mountPoint, *filename, depth), writeable);
}
}
void CResourceHandler::loadArchive(const std::string &prefix, const std::string &mountPoint, const JsonNode & config, EResType::Type archiveType)
{
std::string URI = prefix + config["path"].String();
auto filename = initialLoader->getResourceName(ResourceID(URI, archiveType));
if (filename)
resourceLoader->addLoader(new CArchiveLoader(mountPoint, *filename), false);
}
void CResourceHandler::loadJsonMap(const std::string &prefix, const std::string &mountPoint, const JsonNode & config)
{
std::string URI = prefix + config["path"].String();
auto filename = initialLoader->getResourceName(ResourceID(URI, EResType::TEXT));
if (filename)
{
auto configData = initialLoader->load(ResourceID(URI, EResType::TEXT))->readAll();
const JsonNode config((char*)configData.first.get(), configData.second);
resourceLoader->addLoader(new CMappedFileLoader(mountPoint, config), false);
}
}
void CResourceHandler::loadMainFileSystem(const std::string &fsConfigURI)
{
auto fsConfigData = initialLoader->load(ResourceID(fsConfigURI, EResType::TEXT))->readAll();
const JsonNode fsConfig((char*)fsConfigData.first.get(), fsConfigData.second);
loadModFileSystem("", fsConfig["filesystem"]);
// hardcoded system-specific path, may not be inside any of data directories
resourceLoader->addLoader(new CFilesystemLoader("SAVES/", VCMIDirs::get().userSavePath()), true);
resourceLoader->addLoader(new CFilesystemLoader("CONFIG/", VCMIDirs::get().userConfigPath()), true);
}
void CResourceHandler::loadModFileSystem(const std::string & prefix, const JsonNode &fsConfig)
{
for(auto & mountPoint : fsConfig.Struct())
{
for(auto & entry : mountPoint.second.Vector())
{
CStopWatch timer;
logGlobal->debugStream() << "\t\tLoading resource at " << prefix + entry["path"].String();
//TODO: replace if's with string->functor map?
if (entry["type"].String() == "map")
loadJsonMap(prefix, mountPoint.first, entry);
if (entry["type"].String() == "dir")
loadDirectory(prefix, mountPoint.first, entry);
if (entry["type"].String() == "lod")
loadArchive(prefix, mountPoint.first, entry, EResType::ARCHIVE_LOD);
if (entry["type"].String() == "snd")
loadArchive(prefix, mountPoint.first, entry, EResType::ARCHIVE_SND);
if (entry["type"].String() == "vid")
loadArchive(prefix, mountPoint.first, entry, EResType::ARCHIVE_VID);
logGlobal->debugStream() << "Resource loaded in " << timer.getDiff() << " ms.";
}
}
}
std::vector<std::string> CResourceHandler::getAvailableMods()
{
static const std::string modDir = "MODS/";
auto list = initialLoader->getFilteredFiles([](const ResourceID & id) -> bool
{
return id.getType() == EResType::DIRECTORY
&& boost::range::count(id.getName(), '/') == 1
&& boost::algorithm::starts_with(id.getName(), modDir);
});
//storage for found mods
std::vector<std::string> foundMods;
for (auto & entry : list)
{
std::string name = entry.getName();
name.erase(0, modDir.size()); //Remove path prefix
if (name == "WOG") // check if wog is actually present. Hack-ish but better than crash
{
if (!initialLoader->existsResource(ResourceID("DATA/ZVS", EResType::DIRECTORY)) &&
!initialLoader->existsResource(ResourceID("MODS/WOG/DATA/ZVS", EResType::DIRECTORY)))
{
continue;
}
}
foundMods.push_back(name);
}
return foundMods;
}
void CResourceHandler::setActiveMods(std::vector<std::string> enabledMods)
{
// default FS config for mods: directory "Content" that acts as H3 root directory
JsonNode defaultFS;
defaultFS[""].Vector().resize(1);
defaultFS[""].Vector()[0]["type"].String() = "dir";
defaultFS[""].Vector()[0]["path"].String() = "/Content";
for(std::string & modName : enabledMods)
{
ResourceID modConfFile("mods/" + modName + "/mod", EResType::TEXT);
auto fsConfigData = initialLoader->load(modConfFile)->readAll();
const JsonNode fsConfig((char*)fsConfigData.first.get(), fsConfigData.second);
if (!fsConfig["filesystem"].isNull())
loadModFileSystem("mods/" + modName, fsConfig["filesystem"]);
else
loadModFileSystem("mods/" + modName, defaultFS);
}
}