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390 lines
10 KiB
C++
390 lines
10 KiB
C++
/*
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OpenMW - The completely unofficial reimplementation of Morrowind
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Copyright (C) 2008-2010 Nicolay Korslund
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Email: < korslund@gmail.com >
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WWW: http://openmw.sourceforge.net/
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This file (cpp_bsaarchive.cpp) is part of the OpenMW package.
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OpenMW is distributed as free software: you can redistribute it
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and/or modify it under the terms of the GNU General Public License
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version 3, as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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version 3 along with this program. If not, see
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http://www.gnu.org/licenses/ .
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*/
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#include "bsa_archive.hpp"
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#include <OgreFileSystem.h>
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#include <OgreArchive.h>
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#include <OgreArchiveFactory.h>
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#include <OgreArchiveManager.h>
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#include "bsa_file.hpp"
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namespace
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{
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using namespace Ogre;
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using namespace Bsa;
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struct ciLessBoost : std::binary_function<std::string, std::string, bool>
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{
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bool operator() (const std::string & s1, const std::string & s2) const {
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//case insensitive version of is_less
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return boost::ilexicographical_compare(s1, s2);
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}
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};
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struct pathComparer
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{
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private:
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std::string find;
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public:
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pathComparer(const std::string& toFind) : find(toFind) { }
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bool operator() (const std::string& other)
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{
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return boost::iequals(find, other);
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}
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};
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static bool fsstrict = false;
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/// An OGRE Archive wrapping a BSAFile archive
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class DirArchive: public Ogre::FileSystemArchive
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{
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boost::filesystem::path currentdir;
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std::map<std::string, std::vector<std::string>, ciLessBoost> m;
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unsigned int cutoff;
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bool findFile(const String& filename, std::string& copy) const
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{
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copy = filename;
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std::replace(copy.begin(), copy.end(), '\\', '/');
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if(copy.at(0) == '/')
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copy.erase(0, 1);
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if(fsstrict == true)
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return true;
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std::string folder;
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//int delimiter = 0;
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size_t lastSlash = copy.rfind('/');
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if (lastSlash != std::string::npos)
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{
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folder = copy.substr(0, lastSlash);
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//delimiter = lastSlash+1;
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}
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std::vector<std::string> current;
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{
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std::map<std::string,std::vector<std::string>,ciLessBoost>::const_iterator found = m.find(folder);
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if (found == m.end())
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{
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return false;
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}
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else
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current = found->second;
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}
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std::vector<std::string>::iterator find = std::lower_bound(current.begin(), current.end(), copy, ciLessBoost());
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if (find != current.end() && !ciLessBoost()(copy, current.front()))
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{
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if (!boost::iequals(copy, *find))
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if ((find = std::find_if(current.begin(), current.end(), pathComparer(copy))) == current.end()) //\todo Check if this line is actually needed
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return false;
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copy = *find;
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return true;
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}
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return false;
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}
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public:
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DirArchive(const String& name)
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: FileSystemArchive(name, "Dir"), currentdir (name)
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{
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mType = "Dir";
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std::string s = name;
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cutoff = s.size() + 1;
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if(fsstrict == false)
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populateMap(currentdir);
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}
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void populateMap(boost::filesystem::path d){
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//need to cut off first
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boost::filesystem::directory_iterator dir_iter(d), dir_end;
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std::vector<std::string> filesind;
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for(;dir_iter != dir_end; dir_iter++)
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{
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if(boost::filesystem::is_directory(*dir_iter))
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populateMap(*dir_iter);
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else
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{
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std::string s = dir_iter->path().string();
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std::replace(s.begin(), s.end(), '\\', '/');
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std::string small;
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if(cutoff < s.size())
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small = s.substr(cutoff, s.size() - cutoff);
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else
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small = s.substr(cutoff - 1, s.size() - cutoff);
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filesind.push_back(small);
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}
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}
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std::sort(filesind.begin(), filesind.end(), ciLessBoost());
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std::string small;
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std::string original = d.string();
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std::replace(original.begin(), original.end(), '\\', '/');
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if(cutoff < original.size())
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small = original.substr(cutoff, original.size() - cutoff);
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else
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small = original.substr(cutoff - 1, original.size() - cutoff);
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m[small] = filesind;
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}
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bool isCaseSensitive() const { return fsstrict; }
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// The archive is loaded in the constructor, and never unloaded.
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void load() {}
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void unload() {}
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bool exists(const String& filename) {
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std::string copy;
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if (findFile(filename, copy))
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return FileSystemArchive::exists(copy);
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return false;
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}
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DataStreamPtr open(const String& filename, bool readonly = true) const
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{
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std::string copy;
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if (findFile(filename, copy))
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return FileSystemArchive::open(copy, readonly);
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DataStreamPtr p;
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return p;
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}
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};
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class BSAArchive : public Archive
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{
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BSAFile arc;
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public:
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BSAArchive(const String& name)
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: Archive(name, "BSA")
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{ arc.open(name); }
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bool isCaseSensitive() const { return false; }
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// The archive is loaded in the constructor, and never unloaded.
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void load() {}
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void unload() {}
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DataStreamPtr open(const String& filename, bool recursive = true) const
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{
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// Get a non-const reference to arc. This is a hack and it's all
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// OGRE's fault. You should NOT expect an open() command not to
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// have any side effects on the archive, and hence this function
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// should not have been declared const in the first place.
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BSAFile *narc = const_cast<BSAFile*>(&arc);
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// Open the file
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return narc->getFile(filename.c_str());
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}
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bool exists(const String& filename) {
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return arc.exists(filename.c_str());
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}
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bool cexists(const String& filename) const {
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return arc.exists(filename.c_str());
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}
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time_t getModifiedTime(const String&) { return 0; }
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// This is never called as far as I can see.
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StringVectorPtr list(bool recursive = true, bool dirs = false)
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{
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//std::cout << "list(" << recursive << ", " << dirs << ")\n";
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StringVectorPtr ptr = StringVectorPtr(new StringVector());
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return ptr;
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}
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// Also never called.
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FileInfoListPtr listFileInfo(bool recursive = true, bool dirs = false)
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{
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//std::cout << "listFileInfo(" << recursive << ", " << dirs << ")\n";
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FileInfoListPtr ptr = FileInfoListPtr(new FileInfoList());
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return ptr;
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}
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// After load() is called, find("*") is called once. It doesn't seem
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// to matter that we return an empty list, exists() gets called on
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// the correct files anyway.
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StringVectorPtr find(const String& pattern, bool recursive = true,
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bool dirs = false)
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{
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//std::cout << "find(" << pattern << ", " << recursive
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// << ", " << dirs << ")\n";
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StringVectorPtr ptr = StringVectorPtr(new StringVector());
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return ptr;
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}
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/* Gets called once for each of the ogre formats, *.program,
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*.material etc. We ignore all these.
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However, it's also called by MyGUI to find individual textures,
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and we can't ignore these since many of the GUI textures are
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located in BSAs. So instead we channel it through exists() and
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set up a single-element result list if the file is found.
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*/
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FileInfoListPtr findFileInfo(const String& pattern, bool recursive = true,
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bool dirs = false) const
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{
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FileInfoListPtr ptr = FileInfoListPtr(new FileInfoList());
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// Check if the file exists (only works for single files - wild
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// cards and recursive search isn't implemented.)
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if(cexists(pattern))
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{
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FileInfo fi;
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fi.archive = this;
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fi.filename = pattern;
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// It apparently doesn't matter that we return bogus
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// information
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fi.path = "";
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fi.compressedSize = fi.uncompressedSize = 0;
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ptr->push_back(fi);
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}
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return ptr;
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}
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FileInfoListPtr findFileInfo(const String& pattern, bool recursive = true,
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bool dirs = false)
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{
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FileInfoListPtr ptr = FileInfoListPtr(new FileInfoList());
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// Check if the file exists (only works for single files - wild
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// cards and recursive search isn't implemented.)
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if(cexists(pattern))
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{
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FileInfo fi;
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fi.archive = this;
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fi.filename = pattern;
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// It apparently doesn't matter that we return bogus
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// information
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fi.path = "";
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fi.compressedSize = fi.uncompressedSize = 0;
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ptr->push_back(fi);
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}
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return ptr;
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}
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};
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// An archive factory for BSA archives
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class BSAArchiveFactory : public ArchiveFactory
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{
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public:
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const String& getType() const
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{
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static String name = "BSA";
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return name;
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}
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Archive *createInstance( const String& name )
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{
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return new BSAArchive(name);
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}
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void destroyInstance( Archive* arch) { delete arch; }
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};
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class DirArchiveFactory : public FileSystemArchiveFactory
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{
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public:
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const String& getType() const
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{
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static String name = "Dir";
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return name;
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}
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Archive *createInstance( const String& name )
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{
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return new DirArchive(name);
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}
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void destroyInstance( Archive* arch) { delete arch; }
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};
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static bool init = false;
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static bool init2 = false;
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static void insertBSAFactory()
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{
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if(!init)
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{
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ArchiveManager::getSingleton().addArchiveFactory( new BSAArchiveFactory );
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init = true;
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}
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}
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static void insertDirFactory()
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{
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if(!init2)
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{
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ArchiveManager::getSingleton().addArchiveFactory( new DirArchiveFactory );
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init2 = true;
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}
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}
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}
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namespace Bsa
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{
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// The function below is the only publicly exposed part of this file
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void addBSA(const std::string& name, const std::string& group)
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{
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insertBSAFactory();
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ResourceGroupManager::getSingleton().
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addResourceLocation(name, "BSA", group);
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}
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void addDir(const std::string& name, const bool& fs, const std::string& group)
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{
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fsstrict = fs;
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insertDirFactory();
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ResourceGroupManager::getSingleton().
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addResourceLocation(name, "Dir", group);
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}
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}
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