Mixer: Add new module "Aux" to allow creation of "send" topology without requiring an extra strip to control the send gain.

mixer/src/AUX_Module.C

@@ -0,0 +1,179 @@
+
+/*******************************************************************************/
+/* Copyright (C) 2013 Jonathan Moore Liles                                     */
+/*                                                                             */
+/* This program is free software; you can redistribute it and/or modify it     */
+/* under the terms of the GNU General Public License as published by the       */
+/* Free Software Foundation; either version 2 of the License, or (at your      */
+/* option) any later version.                                                  */
+/*                                                                             */
+/* This program 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 General Public License for   */
+/* more details.                                                               */
+/*                                                                             */
+/* You should have received a copy of the GNU General Public License along     */
+/* with This program; see the file COPYING.  If not,write to the Free Software */
+/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+/*******************************************************************************/
+
+#include <FL/fl_draw.H>
+#include "AUX_Module.H"
+#include "dsp.h"
+
+/* The purpose of this module is to provide auxiliary outputs, with
+ * gain. This allows one to create a 'send' type topology without
+ * having to use an extra strip to control the 'send' gain.  */
+
+AUX_Module::AUX_Module ( ) : JACK_Module ( false )
+{
+    is_default( false );
+
+    _number = 0;
+
+    {
+        Port p( this, Port::INPUT, Port::CONTROL, "Gain (dB)" );
+        p.hints.type = Port::Hints::LOGARITHMIC;
+        p.hints.ranged = true;
+        p.hints.minimum = -70.0f;
+        p.hints.maximum = 6.0f;
+        p.hints.default_value = 0.0f;
+        
+        p.connect_to( new float );
+        p.control_value( p.hints.default_value );
+
+        add_port( p );
+    }
+
+    log_create();
+
+    copy_label( "Aux" );
+}
+
+AUX_Module::~AUX_Module ( )
+{
+    configure_outputs(0);
+    delete (float*)control_input[0].buffer();
+}
+
+
+
+void
+AUX_Module::get ( Log_Entry &e ) const
+{
+    e.add( ":number", number() );
+    JACK_Module::get(e);
+}
+
+void
+AUX_Module::set ( Log_Entry &e )
+{
+    for ( int i = 0; i < e.size(); ++i )
+    {
+        const char *s, *v;
+
+        e.get( i, &s, &v );
+
+        if ( ! ( strcmp( s, ":number" ) ) )
+        {
+            number( atoi(v) );
+        }
+    }
+
+    JACK_Module::set(e);
+}
+
+void
+AUX_Module::number ( int n )
+{
+    _number = n;
+
+    char s[10];
+    snprintf( s, sizeof(s), "aux-%c", 'A' + n ); 
+    prefix( s );
+    snprintf( s, sizeof(s), "Aux (%c)", 'A' + n ); 
+    copy_label( s );
+}
+
+void
+AUX_Module::process ( nframes_t nframes )
+{
+    if ( !bypass() )
+    {
+        float g = DB_CO( control_input[0].control_value() );
+ 
+        for ( unsigned int i = 0; i < audio_input.size(); ++i )
+        {
+            if ( audio_input[i].connected() )
+                buffer_copy_and_apply_gain( (sample_t*)jack_output[i].buffer( nframes ), (sample_t*)audio_input[i].buffer(), nframes, g );
+        }
+    }
+    else
+    {
+        for ( unsigned int i = 0; i < audio_input.size(); ++i )
+        {
+            if ( audio_input[i].connected() )
+                buffer_fill_with_silence( (sample_t*)jack_output[i].buffer( nframes ), nframes );
+        }
+    }
+}
+
+void
+AUX_Module::draw ( void )
+{
+    int W = 5;
+
+    Module::draw_box(x(),y(),w() - W,h());
+    Module::draw_label(x(),y(),w() - W,h());
+
+    Module *m = this;
+    
+    fl_color( fl_darker( FL_FOREGROUND_COLOR ) );
+
+    int spacing, offset;
+
+    spacing = h() / m->ninputs();
+    offset = spacing / 2;
+    for ( int i = m->ninputs(); i--; )
+    {
+        int xi = offset + ( spacing * i );
+        fl_rectf( m->x() + m->w() - W, m->y() + xi, W, 2 );
+    }
+}
+
+bool
+AUX_Module::configure_outputs ( int n )
+{
+  int on = audio_output.size();
+
+    if ( n > on )
+    {
+        for ( int i = on; i < n; ++i )
+        {
+            add_port( Port( this, Port::OUTPUT, Port::AUDIO ) );
+        }
+    }
+    else
+    {
+        for ( int i = on; i > n; --i )
+        {
+            audio_output.back().disconnect();
+            audio_output.pop_back();
+        }
+    }
+
+    return true;
+}
+
+bool
+AUX_Module::configure_inputs ( int n )
+{
+    bool b = JACK_Module::configure_inputs( n );
+
+    if ( b )
+    {
+        return configure_outputs( n );
+    }
+
+    return false;
+}

mixer/src/AUX_Module.H

@@ -0,0 +1,54 @@
+
+/*******************************************************************************/
+/* Copyright (C) 2013 Jonathan Moore Liles                                     */
+/*                                                                             */
+/* This program is free software; you can redistribute it and/or modify it     */
+/* under the terms of the GNU General Public License as published by the       */
+/* Free Software Foundation; either version 2 of the License, or (at your      */
+/* option) any later version.                                                  */
+/*                                                                             */
+/* This program 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 General Public License for   */
+/* more details.                                                               */
+/*                                                                             */
+/* You should have received a copy of the GNU General Public License along     */
+/* with This program; see the file COPYING.  If not,write to the Free Software */
+/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+/*******************************************************************************/
+
+#pragma once
+
+#include "JACK_Module.H"
+
+class AUX_Module : public JACK_Module
+{
+    int _number;
+
+protected:
+
+    virtual void get ( Log_Entry &e ) const;
+    virtual void set ( Log_Entry &e );
+
+public:
+
+    virtual const char *name ( void ) const { return "AUX"; }
+
+    virtual bool configure_outputs ( int n );
+    virtual bool configure_inputs ( int n );
+
+    void number ( int n );
+    int number ( void ) const { return _number; }
+
+    AUX_Module ( );
+    virtual ~AUX_Module ( );
+
+    LOG_CREATE_FUNC( AUX_Module );
+
+protected:
+
+    virtual void draw ( void );
+    virtual void process ( nframes_t nframes );
+
+};
+

mixer/src/Controller_Module.H

@@ -91,7 +91,7 @@ public:
 
     void draw ( void )
         {
-            draw_box();
+            draw_box(x(),y(),w(),h());
             Fl_Group::draw();
         }
 

mixer/src/JACK_Module.C

@@ -32,41 +32,47 @@
 
 
 
-JACK_Module::JACK_Module ( )
+JACK_Module::JACK_Module ( bool log )
     : Module ( 50, 24, name() )
 {
-    /* FIXME: how do Controls find out that a connected value has changed? How does this work in ladspa? */
+    _prefix = 0;
+
+    if ( log )
     {
-        Port p( this, Port::INPUT, Port::CONTROL, "Inputs" );
-        p.hints.type = Port::Hints::INTEGER;
-        p.hints.minimum = 0;
-        p.hints.maximum = 16;
-        p.hints.ranged = true;
+        /* FIXME: how do Controls find out that a connected value has changed? How does this work in ladspa? */
+        {
+            Port p( this, Port::INPUT, Port::CONTROL, "Inputs" );
+            p.hints.type = Port::Hints::INTEGER;
+            p.hints.minimum = 0;
+            p.hints.maximum = 16;
+            p.hints.ranged = true;
+            p.hints.visible = false;
 
-        p.connect_to( new float );
-        p.control_value_no_callback( 0 );
+            p.connect_to( new float );
+            p.control_value_no_callback( 0 );
 
-        add_port( p );
-    }
+            add_port( p );
+        }
 
-    {
-        Port p( this, Port::INPUT, Port::CONTROL, "Outputs" );
-        p.hints.type = Port::Hints::INTEGER;
-        p.hints.minimum = 0;
-        p.hints.maximum = 16;
-        p.hints.ranged = true;
+        {
+            Port p( this, Port::INPUT, Port::CONTROL, "Outputs" );
+            p.hints.type = Port::Hints::INTEGER;
+            p.hints.minimum = 0;
+            p.hints.maximum = 16;
+            p.hints.ranged = true;
+            p.hints.visible = false;
 
-        p.connect_to( new float );
-        p.control_value_no_callback( 0 );
+            p.connect_to( new float );
+            p.control_value_no_callback( 0 );
 
-        add_port( p );
-    }
+            add_port( p );
+        }
+        color( FL_BLACK );
 
-    end();
-    
-    color( FL_BLACK );
+        log_create();
+    }
 
-    log_create();
+    end();    
 }
 
 JACK_Module::~JACK_Module ( )
@@ -74,6 +80,8 @@ JACK_Module::~JACK_Module ( )
     log_destroy();
     configure_inputs( 0 );
     configure_outputs( 0 );
+    if ( _prefix )
+        free( _prefix );
 }
 
 
@@ -93,19 +101,26 @@ JACK_Module::configure_inputs ( int n )
     {
         for ( int i = on; i < n; ++i )
         {
-            JACK::Port po( chain()->engine(), JACK::Port::Output, i );
+            JACK::Port *po = NULL;
 
-            if ( ! po.activate() )
+            if ( !_prefix )
+                po = new JACK::Port( chain()->engine(), JACK::Port::Output, i );
+            else
+                po = new JACK::Port( chain()->engine(), JACK::Port::Output, _prefix, i );
+
+            if ( ! po->activate() )
             {
-                jack_port_activation_error( &po );
+                jack_port_activation_error( po );
                 return false;
             }
 
-            if ( po.valid() )
+            if ( po->valid() )
             {
                 add_port( Port( this, Port::INPUT, Port::AUDIO ) );
-                jack_output.push_back( po );
+                jack_output.push_back( *po );
             }
+
+            delete po;
         }
     }
     else
@@ -119,7 +134,8 @@ JACK_Module::configure_inputs ( int n )
         }
     }
 
-    control_input[0].control_value_no_callback( n );
+    if ( is_default() )
+        control_input[0].control_value_no_callback( n );
 
     return true;
 }
@@ -139,19 +155,26 @@ JACK_Module::configure_outputs ( int n )
     {
         for ( int i = on; i < n; ++i )
         {
-            JACK::Port po( chain()->engine(), JACK::Port::Input, i );
+            JACK::Port *po = NULL;
 
-            if ( ! po.activate() )
+            if ( !_prefix )
+                po = new JACK::Port( chain()->engine(), JACK::Port::Input, i );
+            else
+                po = new JACK::Port( chain()->engine(), JACK::Port::Input, _prefix, i );
+
+            if ( ! po->activate() )
             {
-                jack_port_activation_error( &po );
+                jack_port_activation_error( po );
                 return false;
             }
 
-            if ( po.valid() )
+            if ( po->valid() )
             {
                 add_port( Port( this, Port::OUTPUT, Port::AUDIO ) );
-                jack_input.push_back( po );
+                jack_input.push_back( *po );
             }
+
+            delete po;
         }
     }
     else
@@ -165,7 +188,8 @@ JACK_Module::configure_outputs ( int n )
         }
     }
 
-    control_input[1].control_value_no_callback( n );
+    if ( is_default() )
+        control_input[1].control_value_no_callback( n );
 
     return true;
 }
@@ -230,10 +254,19 @@ void
 JACK_Module::process ( nframes_t nframes )
 {
     for ( unsigned int i = 0; i < audio_input.size(); ++i )
+    {
         if ( audio_input[i].connected() )
-            buffer_copy( (sample_t*)jack_output[i].buffer( nframes ), (sample_t*)audio_input[i].buffer(), nframes );
+            buffer_copy( (sample_t*)jack_output[i].buffer( nframes ),
+                         (sample_t*)audio_input[i].buffer(),
+                         nframes );
+                         
+    }
 
     for ( unsigned int i = 0; i < audio_output.size(); ++i )
+    {
         if ( audio_output[i].connected() )
-            buffer_copy( (sample_t*)audio_output[i].buffer(), (sample_t*)jack_input[i].buffer( nframes ), nframes );
+            buffer_copy( (sample_t*)audio_output[i].buffer(),
+                         (sample_t*)jack_input[i].buffer( nframes ),
+                         nframes );
+    }
 }

mixer/src/JACK_Module.H

@@ -19,13 +19,27 @@
 
 #pragma once
 
-
 #include "Module.H"
 #include "JACK/Port.H"
 #include <vector>
 
 class JACK_Module : public Module
 {
+    char *_prefix;
+
+protected:
+    
+    void prefix ( const char *s )
+        {
+            if ( _prefix )
+                free( _prefix );
+            
+            _prefix = NULL;
+            
+            if ( s )
+                _prefix = strdup( s );
+        }
+
     std::vector<JACK::Port> jack_input;
     std::vector<JACK::Port> jack_output;
 
@@ -33,21 +47,19 @@ class JACK_Module : public Module
 
 public:
 
-    JACK_Module ( );
+    JACK_Module ( bool log = true );
     virtual ~JACK_Module ( );
 
-    const char *name ( void ) const { return "JACK"; }
-
-    bool initialize ( void );
+    virtual const char *name ( void ) const { return "JACK"; }
 
-    int can_support_inputs ( int );
-    bool configure_inputs ( int n );
-    bool configure_outputs ( int n );
+    virtual bool initialize ( void );
 
-    void add_output ( void );
+    virtual int can_support_inputs ( int );
+    virtual bool configure_inputs ( int n );
+    virtual bool configure_outputs ( int n );
 
-    void handle_control_changed ( Port *p );
-    void handle_chain_name_changed ();
+    virtual void handle_control_changed ( Port *p );
+    virtual void handle_chain_name_changed ();
 
     LOG_CREATE_FUNC( JACK_Module );
 

mixer/src/Meter_Module.H

@@ -48,5 +48,5 @@ protected:
 
     virtual int handle ( int m );
     virtual void process ( nframes_t nframes );
-    virtual void draw ( void ) { draw_box(); }
+    virtual void draw ( void ) { draw_box(x(),y(),w(),h()); }
 };

mixer/src/Module.C

@@ -33,6 +33,7 @@
 #include "Mono_Pan_Module.H"
 #include "Meter_Module.H"
 #include "Plugin_Module.H"
+#include "AUX_Module.H"
 
 #include <FL/Fl_Menu_Button.H>
 #include "FL/test_press.H"
@@ -395,7 +396,11 @@ Module::set ( Log_Entry &e )
 
         e.get( i, &s, &v );
 
-        if ( ! strcmp( s, ":chain" ) )
+        if ( ! ( strcmp( s, ":is_default" ) ) )
+        {
+            is_default( atoi( v ) );
+        }
+        else if ( ! strcmp( s, ":chain" ) )
         {
             /* This trickiness is because we may need to know the name of
                our chain before we actually get added to it. */
@@ -421,10 +426,6 @@ Module::set ( Log_Entry &e )
         {
             set_parameters( v );
         }
-        else if ( ! ( strcmp( s, ":is_default" ) ) )
-        {
-            is_default( atoi( v ) );
-        }
         else if ( ! ( strcmp( s, ":active" ) ) )
         {
             bypass( ! atoi( v ) );
@@ -527,17 +528,10 @@ Module::set_parameters ( const char *parameters )
 
 
 void
-Module::draw_box ( void )
+Module::draw_box ( int tx, int ty, int tw, int th )
 {
     fl_color( fl_contrast( FL_FOREGROUND_COLOR, color() ) );
 
-    int tw, th, tx, ty;
-
-    tw = w();
-    th = h();
-    ty = y();
-    tx = x();
-
     fl_push_clip( tx, ty, tw, th );
 
     Fl_Color c = color();
@@ -575,10 +569,8 @@ Module::draw_box ( void )
 }
 
 void
-Module::draw_label ( void )
+Module::draw_label ( int tx, int ty, int tw, int th )
 {
-    int tw, th, tx, ty;
-
     bbox( tx, ty, tw, th );
 
     const char *lp = label();
@@ -616,47 +608,53 @@ Module::draw_label ( void )
 void
 Module::insert_menu_cb ( const Fl_Menu_ *m )
 {
-    unsigned long id = Plugin_Chooser::plugin_chooser( this->ninputs() );
     
+    const char * picked =  m->mvalue()->label();
+
+    DMESSAGE("picked = %s", picked );
+
     Module *mod = NULL;
     
-    switch ( id )
+    if ( !strcmp( picked, "Aux" ) )
     {
-        case 0:
-            return;
-        case 1:
-            mod = new JACK_Module();
-            break;
-        case 2:
-            mod = new Gain_Module();
-            break;
-        case 3:
-            mod = new Meter_Module();
-            break;
-        case 4:
-            mod = new Mono_Pan_Module();
-            break;
-        default:
+        int n = 0;
+        for ( int i = 0; i < chain()->modules(); i++ )
         {
-            Plugin_Module *m = new Plugin_Module();
-
-            m->load( id );
-
-            mod = m;
+            if ( !strcmp( chain()->module(i)->name(), "AUX" ) )
+                n++;
         }
+
+        AUX_Module *jm = new AUX_Module();
+        jm->chain( chain() );
+        jm->number( n );
+        jm->configure_inputs( ninputs() );
+        jm->configure_outputs( ninputs() );
+        jm->initialize();
+     
+        mod = jm;
+    }
+    else if ( !strcmp( picked, "Gain" ) )
+            mod = new Gain_Module();
+    else if ( !strcmp( picked, "Meter" ) )
+        mod = new Meter_Module();
+    else if ( !strcmp( picked, "Mono Pan" ))
+        mod = new Mono_Pan_Module();
+    else if ( !strcmp(picked, "Plugin" ))
+    {
+        unsigned long id = Plugin_Chooser::plugin_chooser( this->ninputs() );
+        
+        if ( id == 0 )
+            return;
+        
+        Plugin_Module *m = new Plugin_Module();
+        
+        m->load( id );
+        
+        mod = m;
     }
 
     if ( mod )
     {
-        if ( !strcmp( mod->name(), "JACK" ) )
-        {
-            DMESSAGE( "Special casing JACK module" );
-            JACK_Module *jm = (JACK_Module*)mod;
-            jm->chain( chain() );
-            jm->configure_inputs( ninputs() );
-            jm->configure_outputs( ninputs() );
-        }
-
         if ( ! chain()->insert( this, mod ) )
         {
             fl_alert( "Cannot insert this module at this point in the chain" );
@@ -737,16 +735,12 @@ Module::menu ( void ) const
     {
         insert_menu = new Fl_Menu_Button( 0, 0, 0, 0 );
 
-        insert_menu->add( "Gain", 0, 0, new unsigned long(2) );
-        insert_menu->add( "Meter", 0, 0, new unsigned long(3) );
-        insert_menu->add( "Mono Pan", 0, 0, new unsigned long(4) );
-
-        insert_menu->add( "Plugin", 0, 0, new unsigned long(4) );
-
-
-        /* Plugin_Module::add_plugins_to_menu( insert_menu ); */
+        insert_menu->add( "Gain", 0, 0 );
+        insert_menu->add( "Meter", 0, 0 );
+        insert_menu->add( "Mono Pan", 0, 0 );
+        insert_menu->add( "Aux", 0, 0 );
+        insert_menu->add( "Plugin", 0, 0 );
 
-//        menu_set_callback( insert_menu, &Module::insert_menu_cb, (void*)this );
         insert_menu->callback( &Module::insert_menu_cb, (void*)this );
     }
 

mixer/src/Module.H

@@ -269,10 +269,10 @@ public:
 
     void bbox ( int &X, int &Y, int &W, int &H )
         {
-            X = x() + 5;
-            Y = y() + 5;
-            W = w() - 10;
-            H = h() - 10;
+            X += + 5;
+            Y += 5;
+            W -= 10;
+            H -= 10;
         }
 
     Module ( int W, int H, const char *L = 0 );
@@ -435,10 +435,10 @@ public:
 protected:
 
     void draw_connections ( void );
-    void draw_label ( void );
-    void draw_box ( void );
+    void draw_label ( int X, int Y, int W, int H );
+    void draw_box ( int X, int Y, int W, int H );
 
-    virtual void draw ( void ) { Module::draw_box(); Module::draw_label(); }
+    virtual void draw ( void ) { Module::draw_box(x(),y(),w(),h()); Module::draw_label(x(),y(),w(),h()); }
     virtual int handle ( int m );
 
     virtual void get ( Log_Entry &e ) const;

mixer/src/main.C

@@ -51,7 +51,7 @@
 #include "Mono_Pan_Module.H"
 #include "Chain.H"
 #include "Mixer_Strip.H"
-
+#include "AUX_Module.H"
 #include "NSM.H"
 
 #include <signal.h>
@@ -156,6 +156,7 @@ main ( int argc, char **argv )
     LOG_REGISTER_CREATE( Mono_Pan_Module );
     LOG_REGISTER_CREATE( Meter_Indicator_Module );
     LOG_REGISTER_CREATE( Controller_Module );
+    LOG_REGISTER_CREATE( AUX_Module );
 
     signal( SIGPIPE, SIG_IGN );
 

mixer/wscript

@@ -49,6 +49,7 @@ src/DPM.C
 src/Engine/Engine.C
 src/Gain_Module.C
 src/JACK_Module.C
+src/AUX_Module.C
 src/LADSPAInfo.C
 src/Meter_Indicator_Module.C
 src/Meter_Module.C