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//
// Programmer: Craig Stuart Sapp <craig@ccrma.stanford.edu>
// Creation Date: Sun May 14 22:05:27 PDT 2000
// Last Modified: Sat Oct 13 16:11:24 PDT 2001 (updated for ALSA 0.9)
// Last Modified: Sat Nov 2 20:35:50 PST 2002 (added #ifdef ALSA)
// Filename: ...sig/maint/code/control/MidiInPort/linux/MidiInPort_alsa.h
// Web Address: http://sig.sapp.org/include/sig/MidiInPort_alsa.h
// Syntax: C++
//
// Description: An interface for MIDI input capabilities of
// linux ALSA sound driver's specific MIDI input methods.
// This class is inherited privately by the MidiInPort class.
//
#ifndef _MIDIINPORT_ALSA_H_INCLUDED
#define _MIDIINPORT_ALSA_H_INCLUDED
#ifdef LINUX
#ifdef ALSA
#include "MidiMessage.h"
#include "CircularBuffer.h"
#include "Array.h"
#include "Sequencer_alsa.h"
#include "SigTimer.h"
#include <pthread.h>
typedef unsigned char uchar;
typedef void (*MIDI_Callback_function)(int arrivalPort);
class MidiInPort_alsa : public Sequencer_alsa {
public:
MidiInPort_alsa (void);
MidiInPort_alsa (int aPort, int autoOpen = 1);
~MidiInPort_alsa ();
void clearSysex (int buffer);
void clearSysex (void);
void close (void);
void closeAll (void);
MidiMessage extract (void);
int getBufferSize (void);
int getChannelOffset (void) const;
int getCount (void);
const char* getName (void);
static const char* getName (int i);
static int getNumPorts (void);
int getPort (void);
int getPortStatus (void);
uchar* getSysex (int buffer);
int getSysexSize (int buffer);
int getTrace (void);
void insert (const MidiMessage& aMessage);
int installSysex (uchar* anArray, int aSize);
MidiMessage& message (int index);
int open (void);
void pause (void);
void setBufferSize (int aSize);
void setChannelOffset (int anOffset);
void setPort (int aPort);
int setTrace (int aState);
void toggleTrace (void);
void unpause (void);
static Array<int> threadinitport;
protected:
int port; // the port to which this object belongs
static MIDI_Callback_function callbackFunction;
static int installSysexPrivate (int port,
uchar* anArray, int aSize);
static int objectCount; // num of similar objects in existence
static int* portObjectCount; // objects connected to particular port
static int* trace; // for verifying input
static std::ostream* tracedisplay; // stream for displaying trace
static int numDevices; // number of input ports
static CircularBuffer<MidiMessage>** midiBuffer; // MIDI storage frm ports
static int channelOffset; // channel offset, either 0 or 1
// not being used right now.
static int* pauseQ; // for adding items to Buffer or not
static SigTimer midiTimer; // for timing MIDI input
static Array<pthread_t> midiInThread; // for MIDI input thread function
static int* sysexWriteBuffer; // for MIDI sysex write location
static Array<uchar>** sysexBuffers; // for MIDI sysex storage
private:
void deinitialize (void);
void initialize (void);
friend void *interpretMidiInputStreamPrivateALSA(void * x);
};
#endif /* ALSA */
#endif /* LINUX */
#endif /* _MIDIINPORT_ALSA_H_INCLUDED */
// md5sum: 260a0accd6b08b638a00904c382293bc - MidiInPort_alsa.h =css= 20030102
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