143 lines
4.2 KiB
C++
143 lines
4.2 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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// Plainamp, Open source Winamp core
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//
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// Copyright © 2005 Sebastian Pipping <webmaster@hartwork.org>
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//
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// --> http://www.hartwork.org
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//
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// This source code is released under the GNU General Public License (GPL).
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// See GPL.txt for details. Any non-GPL usage is strictly forbidden.
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////////////////////////////////////////////////////////////////////////////////
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#ifndef PA_PLUGIN_H
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#define PA_PLUGIN_H
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#include "Global.h"
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#include <vector>
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using namespace std;
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class Plugin;
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extern vector<Plugin *> plugins;
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enum PluginType
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{
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PLUGIN_TYPE_INPUT,
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PLUGIN_TYPE_OUTPUT,
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PLUGIN_TYPE_VIS,
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PLUGIN_TYPE_DSP,
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PLUGIN_TYPE_GEN
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};
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////////////////////////////////////////////////////////////////////////////////
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/// Winamp plugin wrapper
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////////////////////////////////////////////////////////////////////////////////
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class Plugin
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{
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public:
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Plugin( TCHAR * szDllpath );
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~Plugin();
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virtual bool Load() = 0;
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virtual bool Unload() = 0;
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virtual TCHAR * GetTypeString() = 0;
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virtual int GetTypeStringLen() = 0;
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virtual PluginType GetType() = 0;
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// void AllowUnload( bool bAllow ) { bAllowUnload = bAllow; }
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inline bool IsLoaded() { return ( hDLL != NULL ); }
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virtual bool IsActive() = 0;
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inline TCHAR * GetFullpath() { return szFullpath; }
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// inline int GetFullpathLen() { return iFilenameLen; }
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inline TCHAR * GetFilename() { return szFilename; }
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inline int GetFilenameLen() { return iFilenameLen; }
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inline TCHAR * GetName() { return szName; }
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inline int GetNameLen() { return iNameLen; }
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template< class PluginKind >
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static bool FindAll( TCHAR * szPath, TCHAR * szPattern, bool bKeepLoaded );
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protected:
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HINSTANCE hDLL; ///< Library handle
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TCHAR * szName; ///< Name
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int iNameLen; ///< Length of name (in characters)
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BOOL iHookerIndex; ///< Window hook index (0..HC-1). Only last can be unloaded
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WNDPROC WndprocBackup; ///< Window procedure backup. Is restored when unloading. Only valid for <iHookerIndex != -1>
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static int iWndprocHookCounter; ///< Number of window hooks (=HC)
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private:
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TCHAR * szFullpath; ///< Full path e.g. "C:\test.dll"
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TCHAR * szFilename; ///< Filename e.g. "test.dll"
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int iFullpathLen; ///< Length of full path (in characters)
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int iFilenameLen; ///< Length of filename (in characters)
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};
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////////////////////////////////////////////////////////////////////////////////
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///
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////////////////////////////////////////////////////////////////////////////////
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template< class PluginKind >
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bool Plugin::FindAll( TCHAR * szPath, TCHAR * szPattern, bool bKeepLoaded )
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{
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const int uPathLen = ( int )_tcslen( szPath );
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const int uPatternLen = ( int )_tcslen( szPattern );
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TCHAR * szFullPattern = new TCHAR[ uPathLen + 1 + uPatternLen + 1 ];
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memcpy( szFullPattern, szPath, uPathLen * sizeof( TCHAR ) );
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szFullPattern[ uPathLen ] = TEXT( '\\' );
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memcpy( szFullPattern + uPathLen + 1, szPattern, uPatternLen * sizeof( TCHAR ) );
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szFullPattern[ uPathLen + 1 + uPatternLen ] = TEXT( '\0' );
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WIN32_FIND_DATA fd;
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HANDLE hFind = FindFirstFile( szFullPattern, &fd );
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if( hFind == INVALID_HANDLE_VALUE )
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{
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delete [] szFullPattern;
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return false;
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}
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do
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{
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const int iFilenameLen = ( int )_tcslen( fd.cFileName );
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TCHAR * szFullpath = new TCHAR[ uPathLen + 1 + iFilenameLen + 1 ];
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memcpy( szFullpath, szPath, uPathLen * sizeof( TCHAR ) );
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szFullpath[ uPathLen ] = TEXT( '\\' );
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memcpy( szFullpath + uPathLen + 1, fd.cFileName, iFilenameLen * sizeof( TCHAR ) );
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szFullpath[ uPathLen + 1 + iFilenameLen ] = TEXT( '\0' );
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////////////////////////////////////////////////////////////////////////////////
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new PluginKind( szFullpath, bKeepLoaded );
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////////////////////////////////////////////////////////////////////////////////
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delete [] szFullpath;
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}
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while( FindNextFile( hFind, &fd ) );
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FindClose( hFind );
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delete [] szFullPattern;
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return true;
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}
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#endif // PA_PLUGIN_H
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