cwMidiDevice.h/cpp,cwMidiDecls.h : Added getBuffer(),clearBuffer(),maxBufferMsgCount() to cwMidiDevice.
Changed the MIDI device callback function to move the user arg outside of the 'packet_t'. Added midi::ch_msg_t
This commit is contained in:
parent
7d3be5ebc6
commit
a6f518ed54
@ -17,7 +17,7 @@ namespace cw
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typedef struct packet_str
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typedef struct packet_str
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{
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{
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void* cbArg; // Application supplied reference value
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//void* cbArg; // Application supplied reference value
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unsigned devIdx; // The device the msg originated from
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unsigned devIdx; // The device the msg originated from
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unsigned portIdx; // The port index on the source device
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unsigned portIdx; // The port index on the source device
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msg_t* msgArray; // Pointer to an array of 'msgCnt' mdMsg records or NULL if sysExMsg is non-NULL
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msg_t* msgArray; // Pointer to an array of 'msgCnt' mdMsg records or NULL if sysExMsg is non-NULL
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@ -25,8 +25,19 @@ namespace cw
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unsigned msgCnt; // Count of mdMsg records or sys-ex bytes
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unsigned msgCnt; // Count of mdMsg records or sys-ex bytes
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} packet_t;
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} packet_t;
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typedef void (*cbFunc_t)( const packet_t* pktArray, unsigned pktCnt );
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typedef void (*cbFunc_t)( void* cbArg, const packet_t* pktArray, unsigned pktCnt );
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typedef struct ch_msg_str
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{
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time::spec_t timeStamp;
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unsigned devIdx; // The device the msg originated from
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unsigned portIdx; // The port index on the source device
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unsigned uid; // application specified id
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uint8_t ch; // midi channel
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uint8_t status; // midi status byte (channel has been removed)
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uint8_t d0; // midi data byte 0
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uint8_t d1; // midi data byte 1
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} ch_msg_t;
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}
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}
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}
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}
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#endif
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#endif
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119
cwMidiDevice.cpp
119
cwMidiDevice.cpp
@ -55,6 +55,11 @@ namespace cw
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unsigned long long last_posn_micros;
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unsigned long long last_posn_micros;
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time::spec_t start_time;
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time::spec_t start_time;
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ch_msg_t* buf;
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unsigned bufN;
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std::atomic<unsigned> buf_ii;
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std::atomic<unsigned> buf_oi;
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} device_t;
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} device_t;
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device_t* _handleToPtr( handle_t h )
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device_t* _handleToPtr( handle_t h )
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@ -102,8 +107,11 @@ namespace cw
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goto errLabel;
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goto errLabel;
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}
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}
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destroy(p->alsaDevH);
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destroy(p->alsaDevH);
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destroy(p->fileDevH);
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destroy(p->fileDevH);
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mem::release(p->buf);
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mem::release(p);
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mem::release(p);
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errLabel:
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errLabel:
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@ -173,6 +181,45 @@ namespace cw
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return true;
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return true;
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}
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}
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void _callback( void* cbArg, const packet_t* pktArray, unsigned pktCnt )
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{
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device_t* p = (device_t*)cbArg;
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for(unsigned i=0; i<pktCnt; ++i)
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{
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const packet_t* pkt = pktArray + i;
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if( pkt->msgArray != nullptr )
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{
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unsigned ii = p->buf_ii.load();
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unsigned oi = p->buf_oi.load();
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for(unsigned j=0; j<pkt->msgCnt; ++j)
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{
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ch_msg_t* m = p->buf + ii;
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m->devIdx = pkt->devIdx;
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m->portIdx = pkt->portIdx;
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m->timeStamp = pkt->msgArray[j].timeStamp;
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m->uid = pkt->msgArray[j].uid;
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m->ch = pkt->msgArray[j].ch;
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m->status = pkt->msgArray[j].status;
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m->d0 = pkt->msgArray[j].d0;
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m->d1 = pkt->msgArray[j].d1;
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ii = (ii+1 == p->bufN ? 0 : ii+1);
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if( ii == oi )
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{
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cwLogError(kBufTooSmallRC,"The MIDI device buffer is full %i.",p->bufN);
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}
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}
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p->buf_ii.store(ii);
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}
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}
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if( p->cbFunc != nullptr )
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p->cbFunc(p->cbArg,pktArray,pktCnt);
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}
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} // device
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} // device
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} // midi
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} // midi
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@ -188,7 +235,9 @@ cw::rc_t cw::midi::device::create( handle_t& hRef,
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const char* appNameStr,
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const char* appNameStr,
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const char* fileDevName,
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const char* fileDevName,
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unsigned fileDevReadAheadMicros,
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unsigned fileDevReadAheadMicros,
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unsigned parserBufByteCnt )
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unsigned parserBufByteCnt,
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bool enableBufFl,
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unsigned bufferMsgCnt )
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{
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{
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rc_t rc = kOkRC;
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rc_t rc = kOkRC;
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rc_t rc1 = kOkRC;
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rc_t rc1 = kOkRC;
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@ -198,7 +247,11 @@ cw::rc_t cw::midi::device::create( handle_t& hRef,
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device_t* p = mem::allocZ<device_t>();
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device_t* p = mem::allocZ<device_t>();
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if((rc = create( p->alsaDevH, cbFunc, cbArg, parserBufByteCnt, appNameStr )) != kOkRC )
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if((rc = create( p->alsaDevH,
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enableBufFl ? _callback : cbFunc,
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enableBufFl ? p : cbArg,
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parserBufByteCnt,
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appNameStr )) != kOkRC )
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{
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{
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rc = cwLogError(rc,"ALSA MIDI device create failed.");
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rc = cwLogError(rc,"ALSA MIDI device create failed.");
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goto errLabel;
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goto errLabel;
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@ -206,16 +259,29 @@ cw::rc_t cw::midi::device::create( handle_t& hRef,
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p->alsa_dev_cnt = count(p->alsaDevH);
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p->alsa_dev_cnt = count(p->alsaDevH);
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if((rc = create( p->fileDevH, cbFunc, cbArg, p->alsa_dev_cnt, filePortLabelA, max_file_cnt, fileDevName, fileDevReadAheadMicros )) != kOkRC )
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if((rc = create( p->fileDevH,
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enableBufFl ? _callback : cbFunc,
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enableBufFl ? p : cbArg,
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p->alsa_dev_cnt,
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filePortLabelA,
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max_file_cnt,
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fileDevName,
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fileDevReadAheadMicros )) != kOkRC )
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{
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{
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rc = cwLogError(rc,"MIDI file device create failed.");
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rc = cwLogError(rc,"MIDI file device create failed.");
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goto errLabel;
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goto errLabel;
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}
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}
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p->cbFunc = cbFunc;
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p->cbArg = cbArg;
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p->file_dev_cnt = count(p->fileDevH);
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p->file_dev_cnt = count(p->fileDevH);
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p->total_dev_cnt = p->alsa_dev_cnt + p->file_dev_cnt;
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p->total_dev_cnt = p->alsa_dev_cnt + p->file_dev_cnt;
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p->alsaPollfdA = pollFdArray(p->alsaDevH,p->alsaPollfdN);
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p->alsaPollfdA = pollFdArray(p->alsaDevH,p->alsaPollfdN);
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p->fileDevStateId = kStoppedStateId;
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p->fileDevStateId = kStoppedStateId;
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p->buf = mem::allocZ<ch_msg_t>( bufferMsgCnt );
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p->bufN = bufferMsgCnt;
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p->buf_ii.store(0);
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p->buf_oi.store(0);
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if((rc = thread::create(p->threadH,
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if((rc = thread::create(p->threadH,
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_thread_func,
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_thread_func,
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@ -257,6 +323,8 @@ cw::rc_t cw::midi::device::create( handle_t& h,
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const char* fileDevName = "file_dev";
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const char* fileDevName = "file_dev";
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unsigned fileDevReadAheadMicros = 3000;
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unsigned fileDevReadAheadMicros = 3000;
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unsigned parseBufByteCnt = 1024;
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unsigned parseBufByteCnt = 1024;
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bool enableBufFl = false;
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unsigned bufMsgCnt = 0;
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const object_t* file_ports = nullptr;
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const object_t* file_ports = nullptr;
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const object_t* port = nullptr;
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const object_t* port = nullptr;
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@ -264,6 +332,8 @@ cw::rc_t cw::midi::device::create( handle_t& h,
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"fileDevName",fileDevName,
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"fileDevName",fileDevName,
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"fileDevReadAheadMicros",fileDevReadAheadMicros,
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"fileDevReadAheadMicros",fileDevReadAheadMicros,
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"parseBufByteCnt",parseBufByteCnt,
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"parseBufByteCnt",parseBufByteCnt,
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"enableBufFl",enableBufFl,
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"bufferMsgCnt",bufMsgCnt,
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"file_ports",file_ports)) != kOkRC )
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"file_ports",file_ports)) != kOkRC )
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{
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{
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rc = cwLogError(rc,"MIDI port parse args. failed.");
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rc = cwLogError(rc,"MIDI port parse args. failed.");
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@ -290,7 +360,7 @@ cw::rc_t cw::midi::device::create( handle_t& h,
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}
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}
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}
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}
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rc = create(h,cbFunc,cbArg,labelArray,fpi,appNameStr,fileDevName,fileDevReadAheadMicros,parseBufByteCnt);
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rc = create(h,cbFunc,cbArg,labelArray,fpi,appNameStr,fileDevName,fileDevReadAheadMicros,parseBufByteCnt,enableBufFl,bufMsgCnt);
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}
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}
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@ -445,7 +515,7 @@ const char* cw::midi::device::portName( handle_t h, unsigned devIdx, unsigned
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cwLogError(kInvalidArgRC,"The device index %i is not valid.");
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cwLogError(kInvalidArgRC,"The device index %i is not valid.");
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if( name == nullptr )
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if( name == nullptr )
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cwLogError(kOpFailRC,"The access to port name on device index %i port index %i failed.",devIdx,portIdx);
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cwLogError(kOpFailRC,"The access to %s port name on device index %i port index %i failed.",flags & kInMpFl ? "input" : "output", devIdx,portIdx);
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return name;
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return name;
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}
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}
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@ -591,6 +661,43 @@ errLabel:
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}
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}
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unsigned cw::midi::device::maxBufferMsgCount( handle_t h )
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{
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device_t* p = _handleToPtr(h);
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return p->bufN;
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}
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const cw::midi::ch_msg_t* cw::midi::device::getBuffer( handle_t h, unsigned& msgCntRef )
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{
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device_t* p = _handleToPtr(h);
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unsigned ii = p->buf_ii.load();
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unsigned oi = p->buf_oi.load();
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ch_msg_t* m = nullptr;
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msgCntRef = ii >= oi ? ii-oi : p->bufN - oi;
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if( msgCntRef > 0 )
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m = p->buf + oi;
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return m;
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}
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cw::rc_t cw::midi::device::clearBuffer( handle_t h, unsigned msgCnt )
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{
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if( msgCnt > 0 )
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{
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device_t* p = _handleToPtr(h);
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unsigned oi = p->buf_oi.load();
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oi = (oi + msgCnt) % p->bufN;
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p->buf_oi.store(oi);
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}
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return kOkRC;
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}
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cw::rc_t cw::midi::device::start( handle_t h )
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cw::rc_t cw::midi::device::start( handle_t h )
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{
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{
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rc_t rc = kOkRC;
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rc_t rc = kOkRC;
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@ -669,6 +776,8 @@ cw::rc_t cw::midi::device::report( handle_t h )
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report(h,tbH);
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report(h,tbH);
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printf("%s\n",text(tbH));
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errLabel:
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errLabel:
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destroy(tbH);
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destroy(tbH);
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return rc;
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return rc;
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@ -30,7 +30,9 @@ namespace cw
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const char* appNameStr,
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const char* appNameStr,
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const char* fileDevName = "file_dev",
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const char* fileDevName = "file_dev",
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unsigned fileDevReadAheadMicros = 3000,
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unsigned fileDevReadAheadMicros = 3000,
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unsigned parserBufByteCnt = 1024 );
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unsigned parserBufByteCnt = 1024,
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bool enableBufFl = false, // Enable buffer to hold all incoming msg's until RT thread can pick them up.
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unsigned bufferMsgCnt = 4096); // Count of messages in input buffer.
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rc_t create( handle_t& h,
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rc_t create( handle_t& h,
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cbFunc_t cbFunc,
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cbFunc_t cbFunc,
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@ -57,6 +59,10 @@ namespace cw
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rc_t seekToMsg( handle_t h, unsigned devIdx, unsigned portIdx, unsigned msgIdx );
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rc_t seekToMsg( handle_t h, unsigned devIdx, unsigned portIdx, unsigned msgIdx );
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rc_t setEndMsg( handle_t h, unsigned devIdx, unsigned portidx, unsigned msgIdx );
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rc_t setEndMsg( handle_t h, unsigned devIdx, unsigned portidx, unsigned msgIdx );
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unsigned maxBufferMsgCount( handle_t h ); // max number of msg's which will ever be returned in a buffer
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const ch_msg_t* getBuffer( handle_t h, unsigned& msgCntRef );
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rc_t clearBuffer( handle_t h, unsigned msgCnt );
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rc_t start( handle_t h );
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rc_t start( handle_t h );
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rc_t stop( handle_t h );
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rc_t stop( handle_t h );
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rc_t pause( handle_t h, bool pause_fl );
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rc_t pause( handle_t h, bool pause_fl );
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