dolphin/Branches/MusicMod/Player/Src/OutputPlugin.cpp

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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.
////////////////////////////////////////////////////////////////////////////////
#include "OutputPlugin.h"
#include "Main.h"
#include "Unicode.h"
#include "Console.h"
#include "Config.h"
#include "Playback.h"
vector <OutputPlugin *> output_plugins; // extern
OutputPlugin ** active_output_plugins = NULL; // extern
int active_output_count = 0; // extern
////////////////////////////////////////////////////////////////////////////////
///
////////////////////////////////////////////////////////////////////////////////
OutputPlugin::OutputPlugin( TCHAR * szDllpath, bool bKeepLoaded ) : Plugin( szDllpath )
{
iHookerIndex = -1;
bActive = false;
iArrayIndex = -1;
plugin = NULL;
if( !Load() )
{
return;
}
////////////////////////////////////////////////////////////////////////////////
// Quick hack!!!
TCHAR * szBuffer = new TCHAR[ 500 ]; // NOT LOCAL!!!
_stprintf( szBuffer, TEXT( "OutputPluginActive___%s" ), GetFilename() );
ConfBool * cbActive = new ConfBool( &bActive, szBuffer, CONF_MODE_INTERNAL, false );
cbActive->Read();
printf("OutputPlugin > GetFilename() returned <%s>\n", szBuffer );
printf("OutputPlugin > We now have <bActive:%i> and <bKeepLoaded:%i>\n", bActive, bKeepLoaded );
if( bActive )
{
bActive = false;
Start();
}
else
{
if( !bKeepLoaded )
{
// Note: out_ds seems to do weird things
// when unloaded here!?
// So out_ds keeps loaded for now.
if( _tcscmp( GetFilename(), TEXT( "out_ds.dll" ) ) )
{
printf("OutputPlugin > Unload called from OutputPlugin::OutputPlugin\n");
Unload();
}
}
}
// Quick hack!!!
////////////////////////////////////////////////////////////////////////////////
output_plugins.push_back( this );
}
////////////////////////////////////////////////////////////////////////////////
///
////////////////////////////////////////////////////////////////////////////////
bool OutputPlugin::Load()
{
if( IsLoaded() ) return true;
// (1) Load DLL
hDLL = LoadLibrary( GetFullpath() );
if( !hDLL ) return false;
// (2) Find export
WINAMP_OUTPUT_GETTER winampGetOutModule =
( WINAMP_OUTPUT_GETTER )GetProcAddress( hDLL, "winampGetOutModule" );
if( winampGetOutModule == NULL )
{
FreeLibrary( hDLL );
hDLL = NULL;
return false;
}
// (3) Get module
plugin = winampGetOutModule();
if( !plugin )
{
FreeLibrary( hDLL );
hDLL = NULL;
return false;
}
// (4) Process module
plugin->hDllInstance = hDLL;
plugin->hMainWindow = WindowMain;
if( !szName )
{
// Note: The prefix is not removed to hide their
// origin at Nullsoft! It just reads easier.
if( !strnicmp( plugin->description, "nullsoft ", 9 ) )
{
plugin->description += 9;
}
iNameLen = ( int )strlen( plugin->description );
szName = new TCHAR[ iNameLen + 1 ];
ToTchar( szName, plugin->description, iNameLen );
szName[ iNameLen ] = TEXT( '\0' );
}
TCHAR szBuffer[ 5000 ];
_stprintf( szBuffer, TEXT( "Loading <%s>, %s" ), GetFilename(), szName );
Console::Append( szBuffer );
Console::Append( TEXT( " " ) );
printf( ">>>Loading <%s>, %s\n" , GetFilename(), szName );
if( plugin->Init )
{
// We remove the WNDPROC things
#ifdef NOGUI
plugin->Init();
#else
// Init
const WNDPROC WndprocBefore = ( WNDPROC )GetWindowLong( WindowMain, GWL_WNDPROC );
plugin->Init();
const WNDPROC WndprocAfter = ( WNDPROC )GetWindowLong( WindowMain, GWL_WNDPROC );
if( WndprocBefore != WndprocAfter )
{
WndprocBackup = WndprocBefore;
iHookerIndex = iWndprocHookCounter++;
}
// Note: Plugins that use a wndproc hook need
// to be unloaded in the inverse loading order.
// This is due to the nature of wndproc hooking.
if( iHookerIndex != -1 )
{
Console::Append( TEXT( "Wndproc hook added (by plugin)" ) );
}
#endif
}
return true;
}
////////////////////////////////////////////////////////////////////////////////
///
////////////////////////////////////////////////////////////////////////////////
bool OutputPlugin::Unload()
{
if( !IsLoaded() ) return true;
if( bActive && Playback::IsPlaying() ) return false;
TCHAR szBuffer[ 5000 ];
_stprintf( szBuffer, TEXT( "Unloading <%s>" ), GetFilename() );
Console::Append( szBuffer );
Console::Append( TEXT( " " ) );
printf( ">>>Unloading <%s>\n" , GetFilename() );
// Quit
if( plugin )
{
if( plugin->Quit ) plugin->Quit();
plugin = NULL;
}
// Remove wndproc hook
if( ( iHookerIndex != -1 ) && ( iHookerIndex == iWndprocHookCounter - 1 ) )
{
// If we don't restore it the plugins wndproc will
// still be called which is not there anymore -> crash
SetWindowLong( WindowMain, GWL_WNDPROC, ( LONG )WndprocBackup );
Console::Append( TEXT( "Wndproc hook removed (by host)" ) );
Console::Append( TEXT( " " ) );
iHookerIndex = -1;
iWndprocHookCounter--;
}
FreeLibrary( hDLL );
hDLL = NULL;
return true;
}
////////////////////////////////////////////////////////////////////////////////
///
////////////////////////////////////////////////////////////////////////////////
bool OutputPlugin::About( HWND hParent )
{
if( !IsLoaded() ) return false;
if( !plugin ) return false;
if( !plugin->About ) return false;
plugin->About( hParent );
return true;
}
////////////////////////////////////////////////////////////////////////////////
///
////////////////////////////////////////////////////////////////////////////////
bool OutputPlugin::Config( HWND hParent )
{
if( !IsLoaded() ) return false;
if( !plugin ) return false;
if( !plugin->Config ) return false;
plugin->Config( hParent );
return true;
}
////////////////////////////////////////////////////////////////////////////////
///
////////////////////////////////////////////////////////////////////////////////
bool OutputPlugin::Start()
{
//Console::Print( "OutputPlugin::Start() > Begin <IsLoaded():%i> <bActive:%i> <active_output_count:%i>\n",
// IsLoaded(), bActive, active_output_count );
if( !IsLoaded() ) return false;
if( bActive ) return true;
if( active_output_count )
{
active_output_plugins = ( OutputPlugin ** )realloc( active_output_plugins, ( active_output_count + 1 ) * sizeof( OutputPlugin * ) );
active_output_plugins[ active_output_count ] = this;
iArrayIndex = active_output_count;
active_output_count++;
}
else
{
active_output_plugins = ( OutputPlugin ** )malloc( sizeof( OutputPlugin * ) );
active_output_plugins[ 0 ] = this;
iArrayIndex = 0;
active_output_count = 1;
}
#ifndef NOGUI
TCHAR szBuffer[ 5000 ];
_stprintf( szBuffer, TEXT( "Output plugin <%s> activated" ), GetFilename() );
Console::Append( szBuffer );
Console::Append( TEXT( " " ) );
#else
Console::Print( "\n >>> Output plugin '%s' activated\n\n" , GetFilename() );
#endif
bActive = true;
return true;
}
////////////////////////////////////////////////////////////////////////////////
///
////////////////////////////////////////////////////////////////////////////////
bool OutputPlugin::Stop()
{
if( !IsLoaded() ) return true;
if( !bActive ) return true;
const int iMaxIndex = active_output_count - 1;
if( iArrayIndex < iMaxIndex )
{
active_output_plugins[ iArrayIndex ] = active_output_plugins[ iMaxIndex ];
active_output_plugins[ iArrayIndex ]->iArrayIndex = iArrayIndex;
}
iArrayIndex = -1;
active_output_count--;
// TODO Flush?
// TODO Close?
TCHAR szBuffer[ 5000 ];
_stprintf( szBuffer, TEXT( "Output plugin <%s> deactivated" ), GetFilename() );
Console::Append( szBuffer );
Console::Append( TEXT( " " ) );
bActive = false;
return true;
}