MIDIOutControl.hxx

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00001 /*
00002  * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
00003  *                         UNIVERSITAT POMPEU FABRA
00004  *
00005  *
00006  * This program is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation; either version 2 of the License, or
00009  * (at your option) any later version.
00010  *
00011  * This program is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  * GNU General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU General Public License
00017  * along with this program; if not, write to the Free Software
00018  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00019  *
00020  */
00021 
00022 #ifndef __MIDIOUTCONTROL__
00023 #define __MIDIOUTCONTROL__
00024 
00025 #include "MIDIEnums.hxx"
00026 #include "Array.hxx"
00027 #include "MIDIOut.hxx"
00028 #include "MIDIIOConfig.hxx"
00029 
00030 namespace CLAM {
00031 
00032 class MIDIOutControl:public MIDIOut
00033 {
00034         private:
00035                 Array<FloatInControl*> mMyInControls;
00036 
00037                 /* keep a unique id for each message we are constructing,
00038                  * to make sure we have each controlled byte only once
00039                  */
00040                 unsigned char mUniqId;
00041                 
00042                 /* buffer to store the message */
00043                 unsigned char* mMessage;
00044                 unsigned char  mStatusByte;
00045 
00046                 /* buffer to store the uniq id for each controlled byte */
00047                 unsigned char* mReceivedUniqId;
00048                 
00049                 /* table to map InControl ID to byte-in-message index */
00050                 unsigned char* mControlIdToMsgByteId;
00051 
00052                 /* size of the midi message in bytes */
00053                 unsigned char mMessageSize;
00054 
00055                 /* number of bytes in the message that are controlled, and the
00056                  * number of of those that have been received for the current 
00057                  * message construction (current unique ID)
00058                  * (when these are equal the message has been constructed fully)
00059                  */
00060                 unsigned char mControlledBytes;
00061                 unsigned char mControlsReceived;
00062                 
00063                 void InitMembers(void);
00064 
00065                 void Handle(unsigned char* msg,int size);
00066                 
00067                 /* callback function for each received control value */
00068                 void DoControl(unsigned id,TControlData val);
00069         public:
00070                 MIDIOutControl();
00071                 MIDIOutControl(const MIDIIOConfig &c);
00072 
00073                 const char * GetClassName() const {return "MIDIOutControl";}
00074 
00075                 bool ConcreteConfigure(const ProcessingConfig& c)
00076                         throw(ErrProcessingObj);
00077 };
00078 
00079 } // namespace CLAM
00080 
00081 #endif // MIDIOutControl.hxx
00082