preparation for MIDI controller audio fader level support

android/sound.cpp

@@ -26,8 +26,10 @@
 
 
 /* Implementation *************************************************************/
-CSound::CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ), void* arg ) :
+CSound::CSound ( void      (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ),
-    CSoundBase ( "OpenSL", true, fpNewProcessCallback, arg )
+                 void*     arg,
+                 const int iCtrlMIDIChannel ) :
+    CSoundBase ( "OpenSL", true, fpNewProcessCallback, arg, iCtrlMIDIChannel )
 {
 
 }

android/sound.h

@@ -36,7 +36,9 @@
 class CSound : public CSoundBase
 {
 public:
-    CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ), void* arg );
+    CSound ( void      (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ),
+             void*     arg,
+             const int iCtrlMIDIChannel );
     virtual ~CSound() {}
 
     virtual int  Init ( const int iNewPrefMonoBufferSize );

linux/sound.h

@@ -60,8 +60,10 @@
 class CSound : public CSoundBase
 {
 public:
-    CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ), void* arg ) :
+    CSound ( void      (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ),
-        CSoundBase ( "Jack", true, fpNewProcessCallback, arg ), iJACKBufferSizeMono ( 0 ),
+             void*     arg,
+             const int iCtrlMIDIChannel ) :
+        CSoundBase ( "Jack", true, fpNewProcessCallback, arg, iCtrlMIDIChannel ), iJACKBufferSizeMono ( 0 ),
         iJACKBufferSizeStero ( 0 ) { OpenJack(); }
     virtual ~CSound() { CloseJack(); }
 
@@ -95,8 +97,10 @@ protected:
 class CSound : public CSoundBase
 {
 public:
-    CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* pParg ), void* pParg ) :
+    CSound ( void      (*fpNewProcessCallback) ( CVector<short>& psData, void* pParg ),
-        CSoundBase ( "nosound", false, fpNewProcessCallback, pParg ) {}
+             void*     pParg,
+             const int iCtrlMIDIChannel ) :
+        CSoundBase ( "nosound", false, fpNewProcessCallback, pParg, iCtrlMIDIChannel ) {}
     virtual ~CSound() {}
 };
 #endif // WITH_SOUND

mac/sound.cpp

@@ -26,8 +26,10 @@
 
 
 /* Implementation *************************************************************/
-CSound::CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ), void* arg ) :
+CSound::CSound ( void      (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ),
-    CSoundBase ( "CoreAudio", true, fpNewProcessCallback, arg )
+                 void*     arg,
+                 const int iCtrlMIDIChannel ) :
+    CSoundBase ( "CoreAudio", true, fpNewProcessCallback, arg, iCtrlMIDIChannel )
 {
     // Apple Mailing Lists: Subject: GUI Apps should set kAudioHardwarePropertyRunLoop
     // in the HAL, From: Jeff Moore, Date: Fri, 6 Dec 2002

mac/sound.h

@@ -26,6 +26,7 @@
 #define _SOUND_H__9518A621345F78_363456876UZGSDF82CF549__INCLUDED_
 
 #include <CoreAudio/CoreAudio.h>
+#include <CoreMIDI/CoreMIDI.h>
 #include <QMutex>
 #include "soundbase.h"
 #include "global.h"
@@ -35,7 +36,9 @@
 class CSound : public CSoundBase
 {
 public:
-    CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ), void* arg );
+    CSound ( void      (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ),
+             void*     arg,
+             const int iCtrlMIDIChannel );
 
     virtual int  Init ( const int iNewPrefMonoBufferSize );
     virtual void Start();

src/audiomixerboard.cpp

@@ -669,6 +669,19 @@ void CAudioMixerBoard::ApplyNewConClientList ( CVector<CChannelInfo>& vecChanInf
     emit NumClientsChanged ( iNumConnectedClients );
 }
 
+void CAudioMixerBoard::SetFaderLevel ( const int    iChannelIdx,
+                                       const double dValue )
+{
+    // only apply new fader level if channel index is valid and the fader is visible
+    if ( ( iChannelIdx >= 0 ) && ( iChannelIdx < MAX_NUM_CHANNELS ) )
+    {
+        if ( vecpChanFader[iChannelIdx]->IsVisible() )
+        {
+            vecpChanFader[iChannelIdx]->SetFaderLevel ( dValue );
+        }
+    }
+}
+
 void CAudioMixerBoard::UpdateSoloStates()
 {
     // first check if any channel has a solo state active

src/audiomixerboard.h

@@ -102,6 +102,9 @@ public:
     void SetServerName ( const QString& strNewServerName );
     void SetGUIDesign ( const EGUIDesign eNewDesign );
 
+    void SetFaderLevel ( const int    iChannelIdx,
+                         const double dValue );
+
     // settings
     CVector<QString> vecStoredFaderTags;
     CVector<int>     vecStoredFaderLevels;
@@ -115,7 +118,8 @@ protected:
     void StoreFaderSettings ( CChannelFader* pChanFader );
     void UpdateSoloStates();
 
-    void OnGainValueChanged ( const int iChannelIdx, const double dValue );
+    void OnGainValueChanged ( const int    iChannelIdx,
+                              const double dValue );
 
     CVector<CChannelFader*> vecpChanFader;
     QHBoxLayout*            pMainLayout;

src/client.cpp

@@ -27,7 +27,8 @@
 
 /* Implementation *************************************************************/
 CClient::CClient ( const quint16  iPortNumber,
-                   const QString& strConnOnStartupAddress ) :
+                   const QString& strConnOnStartupAddress,
+                   const int      iCtrlMIDIChannel ) :
     vstrIPAddress                    ( MAX_NUM_SERVER_ADDR_ITEMS, "" ),
     ChannelInfo                      (),
     vecStoredFaderTags               ( MAX_NUM_STORED_FADER_SETTINGS, "" ),
@@ -50,7 +51,7 @@ CClient::CClient ( const quint16  iPortNumber,
     eAudioChannelConf                ( CC_MONO ),
     bIsInitializationPhase           ( true ),
     Socket                           ( &Channel, iPortNumber ),
-    Sound                            ( AudioCallback, this ),
+    Sound                            ( AudioCallback, this, iCtrlMIDIChannel ),
     iAudioInFader                    ( AUD_FADER_IN_MIDDLE ),
     bReverbOnLeftChan                ( false ),
     iReverbLevel                     ( 0 ),
@@ -196,6 +197,10 @@ CClient::CClient ( const quint16  iPortNumber,
     QObject::connect ( &Sound, SIGNAL ( ReinitRequest ( int ) ),
         this, SLOT ( OnSndCrdReinitRequest ( int ) ) );
 
+    QObject::connect ( &Sound,
+        SIGNAL ( ControllerInFaderLevel ( int, double ) ),
+        SIGNAL ( ControllerInFaderLevel ( int, double ) ) );
+
     QObject::connect ( &Socket, SIGNAL ( InvalidPacketReceived ( CHostAddress ) ),
         this, SLOT ( OnInvalidPacketReceived ( CHostAddress ) ) );
 

src/client.h

@@ -100,7 +100,8 @@ class CClient : public QObject
 
 public:
     CClient ( const quint16  iPortNumber,
-              const QString& strConnOnStartupAddress );
+              const QString& strConnOnStartupAddress,
+              const int      iCtrlMIDIChannel );
 
     void   Start();
     void   Stop();
@@ -410,6 +411,7 @@ signals:
 #endif
 
     void Disconnected();
+    void ControllerInFaderLevel ( int iChannelIdx, double dValue );
 };
 
 #endif /* !defined ( CLIENT_HOIHGE76GEKJH98_3_43445KJIUHF1912__INCLUDED_ ) */

src/clientdlg.cpp

@@ -482,6 +482,10 @@ CClientDlg::CClientDlg ( CClient*        pNCliP,
         SIGNAL ( CLPingTimeWithNumClientsReceived ( CHostAddress, int, int ) ),
         this, SLOT ( OnCLPingTimeWithNumClientsReceived ( CHostAddress, int, int ) ) );
 
+    QObject::connect ( pClient,
+        SIGNAL ( ControllerInFaderLevel ( int, double ) ),
+        this, SLOT ( OnControllerInFaderLevel ( int, double ) ) );
+
 #ifdef ENABLE_CLIENT_VERSION_AND_OS_DEBUGGING
     QObject::connect ( pClient,
         SIGNAL ( CLVersionAndOSReceived ( CHostAddress, COSUtil::EOpSystemType, QString ) ),

src/clientdlg.h

@@ -134,6 +134,10 @@ public slots:
                                               int          iPingTime,
                                               int          iNumClients );
 
+    void OnControllerInFaderLevel ( const int    iChannelIdx,
+                                    const double dValue ) { MainMixerBoard->SetFaderLevel ( iChannelIdx,
+                                                                                            dValue ); }
+
 #ifdef ENABLE_CLIENT_VERSION_AND_OS_DEBUGGING
     void OnCLVersionAndOSReceived ( CHostAddress           InetAddr,
                                     COSUtil::EOpSystemType eOSType,

src/main.cpp

@@ -57,6 +57,7 @@ int main ( int argc, char** argv )
     bool         bShowAnalyzerConsole      = false;
     bool         bCentServPingServerInList = false;
     int          iNumServerChannels        = DEFAULT_USED_NUM_CHANNELS;
+    int          iCtrlMIDIChannel          = INVALID_MIDI_CH;
     quint16      iPortNumber               = LLCON_DEFAULT_PORT_NUMBER;
     ELicenceType eLicenceType              = LT_NO_LICENCE;
     QString      strConnOnStartupAddress   = "";
@@ -199,6 +200,23 @@ int main ( int argc, char** argv )
         }
 
 
+        // Controller MIDI channel ---------------------------------------------
+        if ( GetNumericArgument ( tsConsole,
+                                  argc,
+                                  argv,
+                                  i,
+                                  "--ctrlmidich", // no short form
+                                  "--ctrlmidich",
+                                  0,
+                                  15,
+                                  rDbleArgument ) )
+        {
+            iCtrlMIDIChannel = static_cast<int> ( rDbleArgument );
+            tsConsole << "- selected controller MIDI channel: " << iCtrlMIDIChannel << endl;
+            continue;
+        }
+
+
         // Use logging ---------------------------------------------------------
         if ( GetStringArgument ( tsConsole,
                                  argc,
@@ -412,7 +430,8 @@ int main ( int argc, char** argv )
             // Client:
             // actual client object
             CClient Client ( iPortNumber,
-                             strConnOnStartupAddress );
+                             strConnOnStartupAddress,
+                             iCtrlMIDIChannel );
 
             // load settings from init-file
             CSettings Settings ( &Client, strIniFileName );
@@ -558,6 +577,7 @@ QString UsageArguments ( char **argv )
         "  -y, --history         enable connection history and set file\n"
         "                        name (server only)\n"
         "  -z, --startminimized  start minimizied (server only)\n"
+        "  --ctrlmidich          MIDI controller channel to listen (client only)"
         "\nExample: " + QString ( argv[0] ) + " -l -inifile myinifile.ini\n";
 }
 

src/soundbase.cpp

@@ -29,7 +29,8 @@
 CSoundBase::CSoundBase ( const QString& strNewSystemDriverTechniqueName,
                          const bool     bNewIsCallbackAudioInterface,
                          void           (*fpNewProcessCallback) ( CVector<int16_t>& psData, void* pParg ),
-                         void* pParg ) :
+                         void*          pParg,
+                         const int      iCtrlMIDIChannel ) :
     fpProcessCallback ( fpNewProcessCallback ),
     pProcessCallbackArg ( pParg ), bRun ( false ),
     bIsCallbackAudioInterface ( bNewIsCallbackAudioInterface ),
@@ -96,6 +97,15 @@ void CSoundBase::run()
     }
 }
 
+void CSoundBase::ParseMIDIMessage ( const CVector<int8_t>& vMIDIPaketBytes )
+{
+// TODO
+int    iChannelIdx = 0;
+double dFaderLevel = 0;
+EmitControllerInFaderLevel ( iChannelIdx, dFaderLevel );
+}
+
+
 
 /******************************************************************************\
 * Device handling                                                              *

src/soundbase.h

@@ -51,7 +51,8 @@ public:
     CSoundBase ( const QString& strNewSystemDriverTechniqueName,
                  const bool     bNewIsCallbackAudioInterface,
                  void           (*fpNewProcessCallback) ( CVector<int16_t>& psData, void* pParg ),
-        void* pParg );
+                 void*          pParg,
+                 const int      iCtrlMIDIChannel );
 
     virtual int  Init ( const int iNewPrefMonoBufferSize );
     virtual void Start();
@@ -88,6 +89,9 @@ public:
     void EmitReinitRequestSignal ( const ESndCrdResetType eSndCrdResetType )
         { emit ReinitRequest ( eSndCrdResetType ); }
 
+    void EmitControllerInFaderLevel ( const int    iChannelIdx,
+                                      const double dValue ) { emit ControllerInFaderLevel ( iChannelIdx, dValue ); }
+
 protected:
     // driver handling
     virtual QString  LoadAndInitializeDriver ( int ) { return ""; }
@@ -112,6 +116,8 @@ protected:
     void run();
     bool bRun;
 
+    void             ParseMIDIMessage ( const CVector<int8_t>& vMIDIPaketBytes );
+
     bool             bIsCallbackAudioInterface;
     QString          strSystemDriverTechniqueName;
 
@@ -123,6 +129,7 @@ protected:
 
 signals:
     void ReinitRequest ( int iSndCrdResetType );
+    void ControllerInFaderLevel ( int iChannelIdx, double dValue );
 };
 
 #endif /* !defined ( SOUNDBASE_HOIHGEH8_3_4344456456345634565KJIUHF1912__INCLUDED_ ) */

src/util.h

@@ -64,6 +64,7 @@ class CClient;  // forward declaration of CClient
 
 /* Definitions ****************************************************************/
 #define METER_FLY_BACK              2
+#define INVALID_MIDI_CH            -1 // invalid MIDI channel definition
 
 
 /* Global functions ***********************************************************/

windows/sound.cpp

@@ -449,8 +449,10 @@ void CSound::Stop()
     }
 }
 
-CSound::CSound ( void (*fpNewCallback) ( CVector<int16_t>& psData, void* arg ), void* arg ) :
+CSound::CSound ( void      (*fpNewCallback) ( CVector<int16_t>& psData, void* arg ),
-    CSoundBase              ( "ASIO", true, fpNewCallback, arg ),
+                 void*     arg,
+                 const int iCtrlMIDIChannel ) :
+    CSoundBase              ( "ASIO", true, fpNewCallback, arg, iCtrlMIDIChannel ),
     vSelectedInputChannels  ( NUM_IN_OUT_CHANNELS ),
     vSelectedOutputChannels ( NUM_IN_OUT_CHANNELS ),
     lNumInChan              ( 0 ),

windows/sound.h

@@ -48,7 +48,9 @@
 class CSound : public CSoundBase
 {
 public:
-    CSound ( void (*fpNewCallback) ( CVector<int16_t>& psData, void* arg ), void* arg );
+    CSound ( void  (*fpNewCallback) ( CVector<int16_t>& psData, void* arg ),
+             void* arg,
+             const int );
     virtual ~CSound() { UnloadCurrentDriver(); }
 
     virtual int  Init ( const int iNewPrefMonoBufferSize );