dolphin/Branches/MusicMod/Player/Src/Plugin.h

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////////////////////////////////////////////////////////////////////////////////
// Plainamp, Open source Winamp core
//
// Copyright <20> 2005 Sebastian Pipping <webmaster@hartwork.org>
//
// --> http://www.hartwork.org
//
// This source code is released under the GNU General Public License (GPL).
// See GPL.txt for details. Any non-GPL usage is strictly forbidden.
////////////////////////////////////////////////////////////////////////////////
#ifndef PA_PLUGIN_H
#define PA_PLUGIN_H
#include "Global.h"
#include <vector>
using namespace std;
class Plugin;
extern vector<Plugin *> plugins;
enum PluginType
{
PLUGIN_TYPE_INPUT,
PLUGIN_TYPE_OUTPUT,
PLUGIN_TYPE_VIS,
PLUGIN_TYPE_DSP,
PLUGIN_TYPE_GEN
};
////////////////////////////////////////////////////////////////////////////////
/// Winamp plugin wrapper
////////////////////////////////////////////////////////////////////////////////
class Plugin
{
public:
Plugin( TCHAR * szDllpath );
~Plugin();
virtual bool Load() = 0;
virtual bool Unload() = 0;
virtual TCHAR * GetTypeString() = 0;
virtual int GetTypeStringLen() = 0;
virtual PluginType GetType() = 0;
// void AllowUnload( bool bAllow ) { bAllowUnload = bAllow; }
inline bool IsLoaded() { return ( hDLL != NULL ); }
virtual bool IsActive() = 0;
inline TCHAR * GetFullpath() { return szFullpath; }
// inline int GetFullpathLen() { return iFilenameLen; }
inline TCHAR * GetFilename() { return szFilename; }
inline int GetFilenameLen() { return iFilenameLen; }
inline TCHAR * GetName() { return szName; }
inline int GetNameLen() { return iNameLen; }
template< class PluginKind >
static bool FindAll( TCHAR * szPath, TCHAR * szPattern, bool bKeepLoaded );
protected:
HINSTANCE hDLL; ///< Library handle
TCHAR * szName; ///< Name
int iNameLen; ///< Length of name (in characters)
BOOL iHookerIndex; ///< Window hook index (0..HC-1). Only last can be unloaded
WNDPROC WndprocBackup; ///< Window procedure backup. Is restored when unloading. Only valid for <iHookerIndex != -1>
static int iWndprocHookCounter; ///< Number of window hooks (=HC)
private:
TCHAR * szFullpath; ///< Full path e.g. "C:\test.dll"
TCHAR * szFilename; ///< Filename e.g. "test.dll"
int iFullpathLen; ///< Length of full path (in characters)
int iFilenameLen; ///< Length of filename (in characters)
};
////////////////////////////////////////////////////////////////////////////////
///
////////////////////////////////////////////////////////////////////////////////
template< class PluginKind >
bool Plugin::FindAll( TCHAR * szPath, TCHAR * szPattern, bool bKeepLoaded )
{
const int uPathLen = ( int )_tcslen( szPath );
const int uPatternLen = ( int )_tcslen( szPattern );
TCHAR * szFullPattern = new TCHAR[ uPathLen + 1 + uPatternLen + 1 ];
memcpy( szFullPattern, szPath, uPathLen * sizeof( TCHAR ) );
szFullPattern[ uPathLen ] = TEXT( '\\' );
memcpy( szFullPattern + uPathLen + 1, szPattern, uPatternLen * sizeof( TCHAR ) );
szFullPattern[ uPathLen + 1 + uPatternLen ] = TEXT( '\0' );
WIN32_FIND_DATA fd;
HANDLE hFind = FindFirstFile( szFullPattern, &fd );
if( hFind == INVALID_HANDLE_VALUE )
{
delete [] szFullPattern;
return false;
}
do
{
const int iFilenameLen = ( int )_tcslen( fd.cFileName );
TCHAR * szFullpath = new TCHAR[ uPathLen + 1 + iFilenameLen + 1 ];
memcpy( szFullpath, szPath, uPathLen * sizeof( TCHAR ) );
szFullpath[ uPathLen ] = TEXT( '\\' );
memcpy( szFullpath + uPathLen + 1, fd.cFileName, iFilenameLen * sizeof( TCHAR ) );
szFullpath[ uPathLen + 1 + iFilenameLen ] = TEXT( '\0' );
////////////////////////////////////////////////////////////////////////////////
new PluginKind( szFullpath, bKeepLoaded );
////////////////////////////////////////////////////////////////////////////////
delete [] szFullpath;
}
while( FindNextFile( hFind, &fd ) );
FindClose( hFind );
delete [] szFullPattern;
return true;
}
#endif // PA_PLUGIN_H