CsoundMidiOutputBuffer Class Reference

#include <cs_glue.hpp>

Inherited by CsoundMidiOutputStream.


Public Member Functions

 CsoundMidiOutputBuffer (unsigned char *buf, int bufSize)
 ~CsoundMidiOutputBuffer ()
int PopMessage ()
int GetStatus ()
int GetChannel ()
int GetData1 ()
int GetData2 ()

Protected Member Functions

int SendMidiData (const unsigned char *buf, int nBytes)

Private Attributes

unsigned char * buf
void * mutex_
int bufReadPos
int bufWritePos
int bufBytes
int bufSize

Friends

class CsoundCallbackWrapper


Constructor & Destructor Documentation

CsoundMidiOutputBuffer::CsoundMidiOutputBuffer ( unsigned char *  buf,
int  bufSize 
)

CsoundMidiOutputBuffer::~CsoundMidiOutputBuffer (  ) 


Member Function Documentation

int CsoundMidiOutputBuffer::GetChannel (  ) 

Returns the channel number (1 to 16) for the first message in the buffer. The return value is zero if there are no messages, or the first message is not a channel message.

int CsoundMidiOutputBuffer::GetData1 (  ) 

Returns the first data byte (0 to 127) for the first message in the buffer. The return value is zero if there are no messages, or the first message does not have any data bytes.

int CsoundMidiOutputBuffer::GetData2 (  ) 

Returns the second data byte (0 to 127) for the first message in the buffer. The return value is zero if there are no messages, or the first message has less than two data bytes.

int CsoundMidiOutputBuffer::GetStatus (  ) 

Returns the status byte for the first message in the buffer, not including the channel number in the case of channel messages. The return value is zero if there are no messages.

int CsoundMidiOutputBuffer::PopMessage (  ) 

Pops and returns the first message from the buffer, in the following format: STATUS + DATA1 * 256 + DATA2 * 65536 where STATUS also includes the channel number (0 to 15), if any. The return value is zero if there are no messages.

int CsoundMidiOutputBuffer::SendMidiData ( const unsigned char *  buf,
int  nBytes 
) [protected]

Copies at most 'nBytes' bytes of MIDI data to the buffer from 'buf'. Returns the number of bytes copied.


Friends And Related Function Documentation

friend class CsoundCallbackWrapper [friend]


Field Documentation

unsigned char* CsoundMidiOutputBuffer::buf [private]


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