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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commite2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch)
tree9047cf9e6b5c43878d5bf82660adae77ceee097a /arts/modules/effects/monostereoconversion_impl.cc
downloadtdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz
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Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/*
+
+ Copyright ( C ) 2002 Arnold Krille <arnold@arnoldarts.de>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or ( at your option ) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+
+ */
+
+#include <artsflow.h>
+#include <flowsystem.h>
+#include <stdsynthmodule.h>
+#include <debug.h>
+#include <artsmoduleseffects.h>
+#include <connect.h>
+
+#include <kglobal.h>
+#include <klocale.h>
+
+namespace Arts {
+
+class MonoToStereo_impl : virtual public MonoToStereo_skel,
+ virtual public StdSynthModule
+{
+protected:
+ float _pan, _pLeft, _pRight;
+public:
+ MonoToStereo_impl()
+ {
+ pan( 0 );
+ }
+
+ float pan() { return _pan; }
+ void pan( float pan )
+ {
+ if( pan < -1 ) pan = -1;
+ if( pan > 1 ) pan = 1;
+ _pan = pan;
+ _pLeft = _pRight = 1;
+ if( _pan < 0 )
+ _pRight = 1 + _pan;
+ else
+ _pLeft = 1 - _pan;
+ }
+
+ void calculateBlock( unsigned long samples )
+ {
+ for( unsigned int i=0; i<samples; i++ )
+ {
+ outleft[ i ] = inmono[ i ] * _pLeft;
+ outright[ i ] = inmono[ i ] * _pRight;
+ }
+ }
+};
+REGISTER_IMPLEMENTATION( MonoToStereo_impl );
+
+class StereoToMono_impl : virtual public StereoToMono_skel,
+ virtual public StdSynthModule
+{
+protected:
+ float _pan, _pLeft, _pRight;
+public:
+ StereoToMono_impl()
+ {
+ pan( 0 );
+ }
+
+ float pan() { return _pan; }
+ void pan( float pan )
+ {
+ if( pan < -1 ) pan = -1;
+ if( pan > 1 ) pan = 1;
+ _pan = pan;
+ _pLeft = _pRight = 1;
+ if( _pan < 0 )
+ _pRight = 1 + _pan;
+ else
+ _pLeft = 1 - _pan;
+ }
+
+ void calculateBlock( unsigned long samples )
+ {
+ for( unsigned int i=0; i<samples; i++ )
+ outmono[ i ] = ( inleft[ i ] * _pLeft + inright[ i ] * _pRight ) / ( _pLeft + _pRight );
+ }
+};
+REGISTER_IMPLEMENTATION( StereoToMono_impl );
+
+class StereoBalance_impl : virtual public StereoBalance_skel,
+ virtual public StdSynthModule
+{
+protected:
+ float _balance, _left, _right;
+public:
+ StereoBalance_impl() : _balance( 0 ), _left( 1 ), _right( 1 ) { }
+
+ float balance() { return _balance; }
+ void balance( float n )
+ {
+//arts_debug( "StereoBalance::balance( float %f )", n );
+ if( n>1 ) n=1;
+ if( n<-1 ) n=-1;
+ _balance = n;
+ _right = _left = 1;
+ if( _balance < 0 )
+ _right = 1 + _balance;
+ else
+ _left = 1 - _balance;
+ }
+
+ void calculateBlock( unsigned long samples )
+ {
+//arts_debug( "StereoBalance::calculateBlock( unsigned int %i )", samples );
+ for( unsigned long i=0; i<samples; i++ )
+ {
+ // outleft[ i ] = inleft[ i ];
+ // outright[ i ] = inright[ i ];
+ outleft[ i ] = inleft[ i ] * _left;
+ outright[ i ] = inright[ i ] * _right;
+ }
+ }
+};
+REGISTER_IMPLEMENTATION( StereoBalance_impl );
+
+class StereoBalanceGuiFactory_impl : virtual public StereoBalanceGuiFactory_skel
+{
+public:
+ Widget createGui( Object object )
+ {
+ KGlobal::locale()->insertCatalogue( "artsmodules" );
+
+ arts_return_val_if_fail( !object.isNull(), Arts::Widget::null() );
+ StereoBalance ch= DynamicCast( object );
+ arts_return_val_if_fail( !ch.isNull(), Arts::Widget::null() );
+
+ Poti bal;
+ bal.caption( i18n( "Balance" ).utf8().data() );
+ bal.min( -1 ); bal.max( 1 );
+ bal.value( ch.balance() );
+ connect( bal, "value_changed", ch, "balance" );
+
+ return bal;
+ }
+};
+REGISTER_IMPLEMENTATION( StereoBalanceGuiFactory_impl );
+
+}
+