672 lines
21 KiB
C
672 lines
21 KiB
C
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/*******************************************************************************/
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/* Copyright (C) 2009 Jonathan Moore Liles */
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/* */
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/* This program is free software; you can redistribute it and/or modify it */
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/* under the terms of the GNU General Public License as published by the */
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/* Free Software Foundation; either version 2 of the License, or (at your */
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/* option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, but WITHOUT */
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/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
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/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for */
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/* more details. */
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/* */
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/* You should have received a copy of the GNU General Public License along */
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/* with This program; see the file COPYING. If not,write to the Free Software */
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/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/*******************************************************************************/
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/* Filter module. Can host LADPSA Plugins, or can be inherited from to make internal
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modules with special features and appearance. */
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#include "Plugin_Module.H"
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#include <Fl/fl_draw.H>
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#include <FL/Fl_Group.H>
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#include "util/debug.h"
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#include <string.h>
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#define HAVE_LIBLRDF 1
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#include "LADSPAInfo.h"
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#include <vector>
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#include <string>
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#include <ladspa.h>
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#include <stdlib.h>
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#include <math.h>
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#include "Engine/Engine.H"
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static LADSPAInfo *ladspainfo;
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/* keep this out of the header to avoid spreading ladspa.h dependency */
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struct Plugin_Module::ImplementationData
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{
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const LADSPA_Descriptor *descriptor;
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// std::vector<LADSPA_Data*> m_LADSPABufVec;
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std::vector<LADSPA_Handle> handle;
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};
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Plugin_Module::Plugin_Module ( ) : Module( 50, 50, name() )
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{
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init();
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end();
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log_create();
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}
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Plugin_Module::~Plugin_Module ( )
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{
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log_destroy();
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plugin_instances( 0 );
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}
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void
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Plugin_Module::get ( Log_Entry &e ) const
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{
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// char s[512];
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// snprintf( s, sizeof( s ), "ladspa:%lu", _idata->descriptor->UniqueID );
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e.add( ":plugin_id", _idata->descriptor->UniqueID );
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Module::get( e );
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}
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void
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Plugin_Module::set ( Log_Entry &e )
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{
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for ( int i = 0; i < e.size(); ++i )
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{
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const char *s, *v;
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e.get( i, &s, &v );
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if ( ! strcmp( s, ":plugin_id" ) )
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{
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load( (unsigned long) atoll ( v ) );
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}
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}
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Module::set( e );
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}
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#include <FL/Fl_Menu_Button.H>
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/* allow the user to pick a plugin */
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Plugin_Module *
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Plugin_Module::pick_plugin ( void )
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{
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/**************/
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/* build menu */
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/**************/
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Fl_Menu_Button *menu = new Fl_Menu_Button( 0, 0, 400, 400 );
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menu->type( Fl_Menu_Button::POPUP3 );
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Plugin_Module::Plugin_Info *pia = Plugin_Module::discover();
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for ( Plugin_Module::Plugin_Info *pi = pia; pi->path; ++pi )
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{
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menu->add(pi->path, 0, NULL, pi, 0 );
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}
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menu->popup();
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if ( menu->value() <= 0 )
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return NULL;
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/************************/
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/* load selected plugin */
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/************************/
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Plugin_Module::Plugin_Info *pi = (Plugin_Module::Plugin_Info*)menu->menu()[ menu->value() ].user_data();
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Plugin_Module *m = new Plugin_Module();
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m->load( pi->id );
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delete[] pia;
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return m;
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}
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void
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Plugin_Module::init ( void )
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{
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_idata = new Plugin_Module::ImplementationData();
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_idata->handle.clear();
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_active = false;
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_crosswire = false;
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align( (Fl_Align)FL_ALIGN_CENTER | FL_ALIGN_INSIDE );
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color( (Fl_Color)fl_color_average( FL_BLUE, FL_GREEN, 0.5f ) );
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int tw, th, tx, ty;
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bbox( tx, ty, tw, th );
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}
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#include "FL/test_press.H"
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int
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Plugin_Module::handle ( int m )
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{
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switch ( m )
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{
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case FL_ENTER:
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case FL_LEAVE:
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redraw();
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return 1;
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break;
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default:
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return Module::handle( m );
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}
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return 0;
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}
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/* There are two possible adaptations that can be made at Plugin_Module input to account for a mismatch
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between channel configurations.
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The two scenarios are as follows.
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1. The preceding module has fewer outputs than this module has inputs. If
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the preceding module has 1 output (MONO) then it will be duplicated
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for this module's addition inputs. If the preceding module has more
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than one output, then the chain is in error.
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2. The preceding module has more outputs than this module has inputs
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If this module has 1 output (MONO) then it will create the required number of
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instances of its plugin.
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Stereo plugins are never run with more than one instance. Mono
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plugins will have their outputs brought up to stereo for plugins with
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stereo input.
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*/
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int
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Plugin_Module::can_support_inputs ( int n )
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{
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/* this is the simple case */
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if ( plugin_ins() == n )
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return plugin_outs();
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/* e.g. MONO going into STEREO */
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/* we'll duplicate our inputs */
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else if ( n < plugin_ins() &&
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1 == n )
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{
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return plugin_outs();
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}
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/* e.g. STEREO going into MONO */
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/* we'll run multiple instances of the plugin */
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else if ( n > plugin_ins() &&
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( plugin_ins() == 1 && plugin_outs() == 1 ) )
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{
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return n;
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}
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return -1;
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}
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bool
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Plugin_Module::configure_inputs( int n )
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{
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int inst = 1;
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_crosswire = false;
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if ( 1 == n && plugin_ins() > 1 )
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{
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DMESSAGE( "Cross-wiring plugin inputs" );
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_crosswire = true;
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audio_input.clear();
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for ( int i = n; i--; )
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audio_input.push_back( Port( this, Port::INPUT, Port::AUDIO ) );
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}
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else if ( n > plugin_ins() &&
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( plugin_ins() == 1 && plugin_outs() == 1 ) )
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{
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DMESSAGE( "Running multiple instances of plugin" );
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audio_input.clear();
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audio_output.clear();
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for ( int i = n; i--; )
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{
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add_port( Port( this, Port::INPUT, Port::AUDIO ) );
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add_port( Port( this, Port::OUTPUT, Port::AUDIO ) );
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}
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inst = n;
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}
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else if ( n == plugin_ins() )
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{
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}
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else
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{
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// unsupported configuration
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return false;
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}
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if ( _active )
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deactivate();
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if ( plugin_instances( inst ) )
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instances( inst );
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else
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return false;
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if ( ! _active )
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activate();
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return true;
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}
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/* return a list of available plugins */
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Plugin_Module::Plugin_Info *
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Plugin_Module::discover ( void )
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{
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if ( !ladspainfo )
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ladspainfo = new LADSPAInfo();
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std::vector<LADSPAInfo::PluginEntry> plugins = ladspainfo->GetMenuList();
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Plugin_Info* pi = new Plugin_Info[plugins.size() + 1];
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int j = 0;
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for (std::vector<LADSPAInfo::PluginEntry>::iterator i=plugins.begin();
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i!=plugins.end(); i++, j++)
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{
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pi[j].path = i->Name.c_str();
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pi[j].id = i->UniqueID;
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}
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return pi;
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}
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bool
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Plugin_Module::plugin_instances ( unsigned int n )
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{
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if ( _idata->handle.size() > n )
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{
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for ( int i = _idata->handle.size() - n; i--; )
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{
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LADSPA_Handle h = _idata->handle.back();
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if ( _idata->descriptor->deactivate )
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_idata->descriptor->deactivate( h );
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if ( _idata->descriptor->cleanup )
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_idata->descriptor->cleanup( h );
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_idata->handle.pop_back();
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}
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}
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else if ( _idata->handle.size() < n )
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{
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for ( int i = n - _idata->handle.size(); i--; )
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{
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LADSPA_Handle h;
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DMESSAGE( "Instantiating plugin..." );
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if ( ! (h = _idata->descriptor->instantiate( _idata->descriptor, engine->sample_rate() ) ) )
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{
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WARNING( "Failed to instantiate plugin" );
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return false;
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}
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DMESSAGE( "Instantiated: %p", h );
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_idata->handle.push_back( h );
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DMESSAGE( "Connecting control ports..." );
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int ij = 0;
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int oj = 0;
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for ( unsigned int k = 0; k < _idata->descriptor->PortCount; ++k )
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{
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if ( LADSPA_IS_PORT_CONTROL( _idata->descriptor->PortDescriptors[k] ) )
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{
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if ( LADSPA_IS_PORT_INPUT( _idata->descriptor->PortDescriptors[k] ) )
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_idata->descriptor->connect_port( h, k, (LADSPA_Data*)control_input[ij++].buffer() );
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else if ( LADSPA_IS_PORT_OUTPUT( _idata->descriptor->PortDescriptors[k] ) )
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_idata->descriptor->connect_port( h, k, (LADSPA_Data*)control_output[oj++].buffer() );
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}
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}
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// connect ports to magic bogus value to aid debugging.
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for ( unsigned int k = 0; k < _idata->descriptor->PortCount; ++k )
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if ( LADSPA_IS_PORT_AUDIO( _idata->descriptor->PortDescriptors[k] ) )
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_idata->descriptor->connect_port( h, k, (LADSPA_Data*)0x42 );
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}
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}
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return true;
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}
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bool
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Plugin_Module::load ( unsigned long id )
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{
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if ( !ladspainfo )
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ladspainfo = new LADSPAInfo();
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_idata->descriptor = ladspainfo->GetDescriptorByID( id );
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label( _idata->descriptor->Name );
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_plugin_ins = _plugin_outs = 0;
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if ( _idata->descriptor )
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{
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if ( LADSPA_IS_INPLACE_BROKEN( _idata->descriptor->Properties ) )
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{
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WARNING( "Cannot use this plugin because it is incapable of processing audio in-place" );
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return false;
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}
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else if ( ! LADSPA_IS_HARD_RT_CAPABLE( _idata->descriptor->Properties ) )
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{
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WARNING( "Cannot use this plugin because it is incapable of hard real-time operation" );
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return false;
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}
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MESSAGE( "Name: %s", _idata->descriptor->Name );
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for ( unsigned int i = 0; i < _idata->descriptor->PortCount; ++i )
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{
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if ( LADSPA_IS_PORT_AUDIO( _idata->descriptor->PortDescriptors[i] ) )
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{
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if ( LADSPA_IS_PORT_INPUT( _idata->descriptor->PortDescriptors[i] ) )
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{
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add_port( Port( this, Port::INPUT, Port::AUDIO, _idata->descriptor->PortNames[ i ] ) );
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_plugin_ins++;
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}
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else if (LADSPA_IS_PORT_OUTPUT(_idata->descriptor->PortDescriptors[i]))
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{
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_plugin_outs++;
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add_port( Port( this, Port::OUTPUT, Port::AUDIO, _idata->descriptor->PortNames[ i ] ) );
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}
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}
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}
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MESSAGE( "Plugin has %i inputs and %i outputs", _plugin_ins, _plugin_outs);
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for ( unsigned int i = 0; i < _idata->descriptor->PortCount; ++i )
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{
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if ( LADSPA_IS_PORT_CONTROL( _idata->descriptor->PortDescriptors[i] ) )
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{
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Port::Direction d = Port::INPUT;
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if ( LADSPA_IS_PORT_INPUT( _idata->descriptor->PortDescriptors[i] ) )
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{
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d = Port::INPUT;
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}
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else if ( LADSPA_IS_PORT_OUTPUT( _idata->descriptor->PortDescriptors[i] ) )
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{
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d = Port::OUTPUT;
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}
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Port p( this, d, Port::CONTROL, _idata->descriptor->PortNames[ i ] );
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LADSPA_PortRangeHintDescriptor hd = _idata->descriptor->PortRangeHints[i].HintDescriptor;
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if ( LADSPA_IS_HINT_BOUNDED_BELOW(hd) )
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{
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p.hints.ranged = true;
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p.hints.minimum = _idata->descriptor->PortRangeHints[i].LowerBound;
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}
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if ( LADSPA_IS_HINT_BOUNDED_ABOVE(hd) )
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{
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p.hints.ranged = true;
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p.hints.maximum = _idata->descriptor->PortRangeHints[i].UpperBound;
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}
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if ( LADSPA_IS_HINT_HAS_DEFAULT(hd) )
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{
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float Max=1.0f, Min=-1.0f, Default=0.0f;
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int Port=i;
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// Get the bounding hints for the port
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LADSPA_PortRangeHintDescriptor HintDesc=_idata->descriptor->PortRangeHints[Port].HintDescriptor;
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if (LADSPA_IS_HINT_BOUNDED_BELOW(HintDesc))
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{
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Min=_idata->descriptor->PortRangeHints[Port].LowerBound;
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if (LADSPA_IS_HINT_SAMPLE_RATE(HintDesc))
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{
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Min*=engine->sample_rate();
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}
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}
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if (LADSPA_IS_HINT_BOUNDED_ABOVE(HintDesc))
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{
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Max=_idata->descriptor->PortRangeHints[Port].UpperBound;
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if (LADSPA_IS_HINT_SAMPLE_RATE(HintDesc))
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{
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Max*=engine->sample_rate();
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}
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}
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#ifdef LADSPA_VERSION
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// We've got a version of the header that supports port defaults
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if (LADSPA_IS_HINT_HAS_DEFAULT(HintDesc)) {
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// LADSPA_HINT_DEFAULT_0 is assumed anyway, so we don't check for it
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if (LADSPA_IS_HINT_DEFAULT_1(HintDesc)) {
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Default = 1.0f;
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} else if (LADSPA_IS_HINT_DEFAULT_100(HintDesc)) {
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Default = 100.0f;
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} else if (LADSPA_IS_HINT_DEFAULT_440(HintDesc)) {
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Default = 440.0f;
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} else {
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// These hints may be affected by SAMPLERATE, LOGARITHMIC and INTEGER
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if (LADSPA_IS_HINT_DEFAULT_MINIMUM(HintDesc) &&
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LADSPA_IS_HINT_BOUNDED_BELOW(HintDesc)) {
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Default=_idata->descriptor->PortRangeHints[Port].LowerBound;
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} else if (LADSPA_IS_HINT_DEFAULT_MAXIMUM(HintDesc) &&
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LADSPA_IS_HINT_BOUNDED_ABOVE(HintDesc)) {
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Default=_idata->descriptor->PortRangeHints[Port].UpperBound;
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} else if (LADSPA_IS_HINT_BOUNDED_BELOW(HintDesc) &&
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LADSPA_IS_HINT_BOUNDED_ABOVE(HintDesc)) {
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// These hints require both upper and lower bounds
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float lp = 0.0f, up = 0.0f;
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float min = _idata->descriptor->PortRangeHints[Port].LowerBound;
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float max = _idata->descriptor->PortRangeHints[Port].UpperBound;
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if (LADSPA_IS_HINT_DEFAULT_LOW(HintDesc)) {
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lp = 0.75f;
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up = 0.25f;
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} else if (LADSPA_IS_HINT_DEFAULT_MIDDLE(HintDesc)) {
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lp = 0.5f;
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up = 0.5f;
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} else if (LADSPA_IS_HINT_DEFAULT_HIGH(HintDesc)) {
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lp = 0.25f;
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up = 0.75f;
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}
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if (LADSPA_IS_HINT_LOGARITHMIC(HintDesc)) {
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p.hints.type = Port::Hints::LOGARITHMIC;
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if (min==0.0f || max==0.0f) {
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// Zero at either end means zero no matter
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// where hint is at, since:
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// log(n->0) -> Infinity
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Default = 0.0f;
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} else {
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// Catch negatives
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bool neg_min = min < 0.0f ? true : false;
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bool neg_max = max < 0.0f ? true : false;
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if (!neg_min && !neg_max) {
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Default = exp(::log(min) * lp + ::log(max) * up);
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} else if (neg_min && neg_max) {
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Default = -exp(::log(-min) * lp + ::log(-max) * up);
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} else {
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// Logarithmic range has asymptote
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// so just use linear scale
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Default = min * lp + max * up;
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}
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}
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} else {
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Default = min * lp + max * up;
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}
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}
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if (LADSPA_IS_HINT_SAMPLE_RATE(HintDesc)) {
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Default *= engine->sample_rate();
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}
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if (LADSPA_IS_HINT_INTEGER(HintDesc)) {
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if ( p.hints.ranged &&
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0 == p.hints.minimum &&
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1 == p.hints.maximum )
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p.hints.type = Port::Hints::BOOLEAN;
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else
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p.hints.type = Port::Hints::INTEGER;
|
||
Default = floorf(Default);
|
||
}
|
||
if (LADSPA_IS_HINT_TOGGLED(HintDesc)){
|
||
p.hints.type = Port::Hints::BOOLEAN;
|
||
}
|
||
}
|
||
}
|
||
#else
|
||
Default = 0.0f;
|
||
#endif
|
||
p.hints.default_value = Default;
|
||
}
|
||
|
||
float *control_value = new float;
|
||
|
||
*control_value = p.hints.default_value;
|
||
|
||
p.connect_to( control_value );
|
||
|
||
add_port( p );
|
||
|
||
DMESSAGE( "Plugin has control port \"%s\" (default: %f)", _idata->descriptor->PortNames[ i ], p.hints.default_value );
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
WARNING( "Failed to load plugin" );
|
||
return false;
|
||
}
|
||
|
||
return plugin_instances( 1 );
|
||
}
|
||
|
||
void
|
||
Plugin_Module::set_input_buffer ( int n, void *buf )
|
||
{
|
||
LADSPA_Handle h;
|
||
|
||
if ( instances() > 1 )
|
||
{
|
||
h = _idata->handle[n];
|
||
n = 0;
|
||
}
|
||
else
|
||
h = _idata->handle[0];
|
||
|
||
for ( unsigned int i = 0; i < _idata->descriptor->PortCount; ++i )
|
||
if ( LADSPA_IS_PORT_INPUT( _idata->descriptor->PortDescriptors[i] ) &&
|
||
LADSPA_IS_PORT_AUDIO( _idata->descriptor->PortDescriptors[i] ) )
|
||
if ( n-- == 0 )
|
||
_idata->descriptor->connect_port( h, i, (LADSPA_Data*)buf );
|
||
}
|
||
|
||
void
|
||
Plugin_Module::set_output_buffer ( int n, void *buf )
|
||
{
|
||
LADSPA_Handle h;
|
||
|
||
if ( instances() > 1 )
|
||
{
|
||
h = _idata->handle[n];
|
||
n = 0;
|
||
}
|
||
else
|
||
h = _idata->handle[0];
|
||
|
||
for ( unsigned int i = 0; i < _idata->descriptor->PortCount; ++i )
|
||
if ( LADSPA_IS_PORT_OUTPUT( _idata->descriptor->PortDescriptors[i] ) &&
|
||
LADSPA_IS_PORT_AUDIO( _idata->descriptor->PortDescriptors[i] ) )
|
||
if ( n-- == 0 )
|
||
_idata->descriptor->connect_port( h, i, (LADSPA_Data*)buf );
|
||
}
|
||
|
||
void
|
||
Plugin_Module::activate ( void )
|
||
{
|
||
if ( _active )
|
||
FATAL( "Attempt to activate already active plugin" );
|
||
|
||
if ( _idata->descriptor->activate )
|
||
for ( unsigned int i = 0; i < _idata->handle.size(); ++i )
|
||
_idata->descriptor->activate( _idata->handle[i] );
|
||
|
||
_active = true;
|
||
}
|
||
|
||
void
|
||
Plugin_Module::deactivate( void )
|
||
{
|
||
if ( _idata->descriptor->deactivate )
|
||
for ( unsigned int i = 0; i < _idata->handle.size(); ++i )
|
||
_idata->descriptor->activate( _idata->handle[i] );
|
||
|
||
_active = false;
|
||
}
|
||
|
||
void
|
||
Plugin_Module::handle_port_connection_change ( void )
|
||
{
|
||
// DMESSAGE( "Connecting audio ports" );
|
||
|
||
if ( _crosswire )
|
||
{
|
||
for ( int i = 0; i < plugin_ins(); ++i )
|
||
set_input_buffer( i, audio_input[0].buffer() );
|
||
}
|
||
else
|
||
{
|
||
for ( unsigned int i = 0; i < audio_input.size(); ++i )
|
||
set_input_buffer( i, audio_input[i].buffer() );
|
||
}
|
||
|
||
for ( unsigned int i = 0; i < audio_output.size(); ++i )
|
||
set_output_buffer( i, audio_output[i].buffer() );
|
||
}
|
||
|
||
void
|
||
Plugin_Module::process ( )
|
||
{
|
||
handle_port_connection_change();
|
||
|
||
if ( _active )
|
||
for ( unsigned int i = 0; i < _idata->handle.size(); ++i )
|
||
{
|
||
volatile int n = i;
|
||
_idata->descriptor->run( _idata->handle[n], nframes() );
|
||
}
|
||
}
|
||
|
||
|