144 lines
4.0 KiB
C++
144 lines
4.0 KiB
C++
//-------------------------------------------------------------------------------------
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//
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// JGE++ is a hardware accelerated 2D game SDK for PSP/Windows.
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//
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// Licensed under the BSD license, see LICENSE in JGE root for details.
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//
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// Copyright (c) 2007 James Hui (a.k.a. Dr.Watson) <jhkhui@gmail.com>
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//
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//-------------------------------------------------------------------------------------
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#ifndef _FILE_SYSTEM_H_
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#define _FILE_SYSTEM_H_
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#define JGE_GET_RES(filename) JFileSystem::GetInstance()->GetResourceFile(filename)
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#define JGE_GET_RESPATH() JFileSystem::GetInstance()->GetResourceRoot()
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#include <stdio.h>
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#include <vector>
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#include <map>
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#include <string>
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#if defined (WIN32) || defined (LINUX) || defined(IOS)
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#else
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#include <pspiofilemgr.h>
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#include <pspiofilemgr_fcntl.h>
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#endif
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#include "unzip/unzip.h"
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using namespace std;
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//////////////////////////////////////////////////////////////////////////
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/// Interface for low level file access with ZIP archive support. All
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/// file operations in JGE are handled through this class so if a ZIP
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/// archive is attached, all the resources will be loaded from the
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/// archive file.
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///
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//////////////////////////////////////////////////////////////////////////
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class JZipCache {
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public:
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JZipCache();
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~JZipCache();
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map<string,unz_file_pos *> dir;
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};
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class JFileSystem
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{
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public:
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//////////////////////////////////////////////////////////////////////////
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/// Get the singleton instance
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///
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//////////////////////////////////////////////////////////////////////////
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static JFileSystem* GetInstance();
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static void Destroy();
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//////////////////////////////////////////////////////////////////////////
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/// Attach ZIP archive to the file system.
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///
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/// @param zipfile - Name of ZIP archive.
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/// @param password - Password for the ZIP archive. Default is NULL.
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///
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/// @return Status of the attach operation.
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///
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//////////////////////////////////////////////////////////////////////////
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bool AttachZipFile(const string &zipfile, char *password = NULL);
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//////////////////////////////////////////////////////////////////////////
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/// Release the attached ZIP archive.
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///
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//////////////////////////////////////////////////////////////////////////
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void DetachZipFile();
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//////////////////////////////////////////////////////////////////////////
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/// Open file for reading.
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///
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//////////////////////////////////////////////////////////////////////////
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bool OpenFile(const string &filename);
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//////////////////////////////////////////////////////////////////////////
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/// Read data from file.
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///
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/// @param buffer - Buffer for reading.
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/// @param size - Number of bytes to read.
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///
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/// @return Number of bytes read.
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///
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//////////////////////////////////////////////////////////////////////////
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int ReadFile(void *buffer, int size);
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//////////////////////////////////////////////////////////////////////////
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/// Get size of file.
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///
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//////////////////////////////////////////////////////////////////////////
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int GetFileSize();
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//////////////////////////////////////////////////////////////////////////
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/// Close file.
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///
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//////////////////////////////////////////////////////////////////////////
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void CloseFile();
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//////////////////////////////////////////////////////////////////////////
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/// Set root for all the following file operations
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///
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/// @resourceRoot - New root.
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///
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//////////////////////////////////////////////////////////////////////////
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void SetResourceRoot(const string& resourceRoot);
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string GetResourceRoot();
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// Returns a string prefixed with the resource path
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string GetResourceFile(string filename);
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protected:
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JFileSystem();
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~JFileSystem();
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private:
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static JFileSystem* mInstance;
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map<string,JZipCache *>mZipCache;
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string mResourceRoot;
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string mZipFileName;
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char *mPassword;
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bool mZipAvailable;
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void preloadZip(string filename);
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#if defined (WIN32) || defined (LINUX) || defined(IOS)
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FILE *mFile;
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#else
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SceUID mFile;
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#endif
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unzFile mZipFile;
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int mFileSize;
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};
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#endif
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