cmMidiAlsa.c: Implemented cmMidiPort() based on ALSA.
This commit is contained in:
kevin
parent
87cc2c4ceb
commit
7adaa96d90
@ -3,62 +3,526 @@
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#include "cmGlobal.h"
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#include "cmRpt.h"
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#include "cmErr.h"
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#include "cmCtx.h"
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#include "cmMem.h"
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#include "cmMallocDebug.h"
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#include "cmLinkedHeap.h"
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#include "cmThread.h"
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#include "cmMidi.h"
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#include "cmMidiPort.h"
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typedef struct
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{
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bool inputFl;
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char* nameStr;
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//SInt32 uid;
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//MIDIEndpointRef epr;
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cmMpParserH_t parserH;
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double prevMicroSecs;
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} cmMpPort;
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#include <alsa/asoundlib.h>
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typedef struct
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{
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char* nameStr;
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bool inputFl; // true if this an input port
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char* nameStr; // string label of this device
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unsigned alsa_type; // ALSA type flags from snd_seq_port_info_get_type()
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unsigned alsa_cap; // ALSA capability flags from snd_seq_port_info_get_capability()
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snd_seq_addr_t alsa_addr; // ALSA client/port address for this port
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cmMpParserH_t parserH; // interface to the client callback function for this port
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} cmMpPort_t;
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unsigned iPortCnt;
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cmMpPort* iPortArray;
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// MIDI devices
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typedef struct
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{
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char* nameStr; // string label for this device
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unsigned iPortCnt; // input ports on this device
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cmMpPort_t* iPortArray;
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unsigned oPortCnt; // output ports on this device
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cmMpPort_t* oPortArray;
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unsigned char clientId; // ALSA client id (all ports on this device use use this client id in their address)
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unsigned oPortCnt;
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cmMpPort* oPortArray;
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} cmMpDev;
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} cmMpDev_t;
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typedef struct
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{
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cmErr_t err;
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cmErr_t err; // error object
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cmLHeapH_t lH; // linked heap used for all internal memory
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unsigned devCnt;
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cmMpDev* devArray;
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unsigned devCnt; // MIDI devices attached to this computer
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cmMpDev_t* devArray;
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cmMpCallback_t cbFunc;
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cmMpCallback_t cbFunc; // MIDI input application callback
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void* cbDataPtr;
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snd_seq_t* h; // ALSA system sequencer handle
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snd_seq_addr_t alsa_addr; // ALSA client/port address representing the application
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int alsa_queue; // ALSA device queue
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cmThreadH_t thH; // MIDI input listening thread
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int alsa_fdCnt; // MIDI input driver file descriptor array
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struct pollfd* alsa_fd;
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cmMpDev_t* prvRcvDev; // the last device and port to rcv MIDI
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cmMpPort_t* prvRcvPort;
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unsigned prvTimeMicroSecs; // time of last recognized event in microseconds
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unsigned eventCnt; // count of recognized events
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} cmMpRoot_t;
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cmMpRoot_t* _cmMpRoot = NULL;
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cmMpRC_t _cmMpErrMsgV(cmErr_t* err, cmMpRC_t rc, int alsaRc, const cmChar_t* fmt, va_list vl )
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{
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if( alsaRc < 0 )
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cmErrMsg(err,kSysErrMpRC,"ALSA Error:%i %s",alsaRc,snd_strerror(alsaRc));
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return cmErrVMsg(err,rc,fmt,vl);
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}
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cmMpRC_t _cmMpErrMsg(cmErr_t* err, cmMpRC_t rc, int alsaRc, const cmChar_t* fmt, ... )
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{
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va_list vl;
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va_start(vl,fmt);
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rc = _cmMpErrMsgV(err,rc,alsaRc,fmt,vl);
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va_end(vl);
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return rc;
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}
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unsigned _cmMpGetPortCnt( snd_seq_t* h, snd_seq_port_info_t* pip, bool inputFl )
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{
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unsigned i = 0;
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snd_seq_port_info_set_port(pip,-1);
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while( snd_seq_query_next_port(h,pip) == 0)
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if( cmIsFlag(snd_seq_port_info_get_capability(pip),inputFl?SND_SEQ_PORT_CAP_READ:SND_SEQ_PORT_CAP_WRITE) )
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++i;
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return i;
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}
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cmMpDev_t* _cmMpClientIdToDev( int clientId )
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{
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cmMpRoot_t* p = _cmMpRoot;
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unsigned i;
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for(i=0; i<p->devCnt; ++i)
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if( p->devArray[i].clientId == clientId )
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return p->devArray + i;
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return NULL;
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}
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cmMpPort_t* _cmMpInPortIdToPort( cmMpDev_t* dev, int portId )
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{
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unsigned i;
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for(i=0; i<dev->iPortCnt; ++i)
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if( dev->iPortArray[i].alsa_addr.port == portId )
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return dev->iPortArray + i;
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return NULL;
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}
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} cmMpRoot;
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void _cmMpSplit14Bits( unsigned v, cmMidiByte_t* d0, cmMidiByte_t* d1 )
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{
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*d0 = (v & 0x3f80) >> 7;
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*d1 = v & 0x7f;
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}
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cmMpRoot _cmMpRoot = { {NULL,NULL,kOkMpRC}, 0, NULL, NULL, NULL };
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cmMpRC_t cmMpInitialize( cmMpCallback_t cbFunc, void* cbDataPtr, unsigned parserBufByteCnt, const char* appNameStr, cmRpt_t* rpt )
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cmMpRC_t cmMpPoll()
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{
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cmMpRC_t rc = kOkMpRC;
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cmMpRoot_t* p = _cmMpRoot;
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int timeOutMs = 50;
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snd_seq_event_t *ev;
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if (poll(p->alsa_fd, p->alsa_fdCnt, timeOutMs) > 0)
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{
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int rc = 1;
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do
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{
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rc = snd_seq_event_input(p->h,&ev);
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// if no input
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if( rc == -EAGAIN )
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break;
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// if input buffer overrun
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if( rc == -ENOSPC )
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break;
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// get the device this event arrived from
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if( p->prvRcvDev==NULL || p->prvRcvDev->clientId != ev->source.client )
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p->prvRcvDev = _cmMpClientIdToDev(ev->source.client);
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// get the port this event arrived from
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if( p->prvRcvDev != NULL && (p->prvRcvPort==NULL || p->prvRcvPort->alsa_addr.port != ev->source.port) )
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p->prvRcvPort = _cmMpInPortIdToPort(p->prvRcvDev,ev->source.port);
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if( p->prvRcvDev == NULL || p->prvRcvPort == NULL )
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continue;
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//printf("%i %x\n",ev->type,ev->type);
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//printf("dev:%i port:%i ch:%i %i\n",ev->source.client,ev->source.port,ev->data.note.channel,ev->data.note.note);
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unsigned microSecs1 = (ev->time.time.tv_sec * 1000000) + (ev->time.time.tv_nsec/1000);
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unsigned deltaMicroSecs = p->prvTimeMicroSecs==0 ? 0 : microSecs1 - p->prvTimeMicroSecs;
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cmMidiByte_t d0 = 0xff;
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cmMidiByte_t d1 = 0xff;
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cmMidiByte_t status = 0;
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switch(ev->type)
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{
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//
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// MIDI Channel Messages
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//
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case SND_SEQ_EVENT_NOTEON:
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status = kNoteOnMdId;
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d0 = ev->data.note.note;
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d1 = ev->data.note.velocity;
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//printf("%s (%i : %i) (%i)\n", snd_seq_ev_is_abstime(ev)?"abs":"rel",ev->time.time.tv_sec,ev->time.time.tv_nsec, deltaMicroSecs/1000);
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break;
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case SND_SEQ_EVENT_NOTEOFF:
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status = kNoteOffMdId;
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d0 = ev->data.note.note;
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d1 = ev->data.note.velocity;
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break;
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case SND_SEQ_EVENT_KEYPRESS:
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status = kPolyPresMdId;
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d0 = ev->data.note.note;
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d1 = ev->data.note.velocity;
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break;
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case SND_SEQ_EVENT_PGMCHANGE:
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status = kPgmMdId;
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d0 = ev->data.control.param;
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d1 = 0xff;
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break;
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case SND_SEQ_EVENT_CHANPRESS:
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status = kChPresMdId;
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d0 = ev->data.control.param;
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d1 = 0xff;
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break;
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case SND_SEQ_EVENT_CONTROLLER:
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status = kCtlMdId;
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d0 = ev->data.control.param;
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d1 = ev->data.control.value;
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break;
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case SND_SEQ_EVENT_PITCHBEND:
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_cmMpSplit14Bits(ev->data.control.value + 8192, &d0, &d1 );
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status = kPbendMdId;
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break;
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//
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// MIDI System Common Messages
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//
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case SND_SEQ_EVENT_QFRAME:
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status = kSysComMtcMdId;
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d0 = ev->data.control.value;
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break;
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case SND_SEQ_EVENT_SONGPOS:
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_cmMpSplit14Bits(ev->data.control.value, &d0, &d1 );
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status = kSysComSppMdId;
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break;
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case SND_SEQ_EVENT_SONGSEL:
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status = kSysComSelMdId;
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d0 = ev->data.control.value;
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break;
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case SND_SEQ_EVENT_TUNE_REQUEST:
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status = kSysComTuneMdId;
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break;
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//
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// MIDI System Real-time Messages
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//
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case SND_SEQ_EVENT_CLOCK: status = kSysRtClockMdId; break;
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case SND_SEQ_EVENT_START: status = kSysRtStartMdId; break;
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case SND_SEQ_EVENT_CONTINUE: status = kSysRtContMdId; break;
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case SND_SEQ_EVENT_STOP: status = kSysRtStopMdId; break;
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case SND_SEQ_EVENT_SENSING: status = kSysRtSenseMdId; break;
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case SND_SEQ_EVENT_RESET: status = kSysRtResetMdId; break;
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}
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if( status != 0 )
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{
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cmMidiByte_t ch = ev->data.note.channel;
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cmMpParserMidiTriple(p->prvRcvPort->parserH, deltaMicroSecs, status | ch, d0, d1 );
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p->prvTimeMicroSecs = microSecs1;
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p->eventCnt += 1;
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}
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}while( snd_seq_event_input_pending(p->h,0));
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cmMpParserTransmit(p->prvRcvPort->parserH);
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}
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return rc;
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}
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bool _cmMpThreadFunc(void* param)
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{
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cmMpPoll();
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return true;
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}
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cmMpRC_t _cmMpAllocStruct( cmMpRoot_t* p, const cmChar_t* appNameStr, cmMpCallback_t cbFunc, void* cbDataPtr, unsigned parserBufByteCnt, cmRpt_t* rpt )
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{
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cmMpRC_t rc = kOkMpRC;
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snd_seq_client_info_t* cip = NULL;
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snd_seq_port_info_t* pip = NULL;
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snd_seq_port_subscribe_t *subs = NULL;
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unsigned i,j,k,arc;
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// alloc the subscription recd on the stack
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snd_seq_port_subscribe_alloca(&subs);
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// alloc the client recd
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if((arc = snd_seq_client_info_malloc(&cip)) < 0 )
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{
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rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"ALSA seq client info allocation failed.");
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goto errLabel;
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}
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// alloc the port recd
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if((arc = snd_seq_port_info_malloc(&pip)) < 0 )
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{
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rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"ALSA seq port info allocation failed.");
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goto errLabel;
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}
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if((p->alsa_queue = snd_seq_alloc_queue(p->h)) < 0 )
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{
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rc = _cmMpErrMsg(&p->err,kSysErrMpRC,p->alsa_queue,"ALSA queue allocation failed.");
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goto errLabel;
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}
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// Set arbitrary tempo (mm=100) and resolution (240) (FROM RtMidi.cpp)
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/*
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snd_seq_queue_tempo_t *qtempo;
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snd_seq_queue_tempo_alloca(&qtempo);
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snd_seq_queue_tempo_set_tempo(qtempo, 600000);
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snd_seq_queue_tempo_set_ppq(qtempo, 240);
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snd_seq_set_queue_tempo(p->h, p->alsa_queue, qtempo);
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snd_seq_drain_output(p->h);
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*/
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// setup the client port
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snd_seq_set_client_name(p->h,appNameStr);
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snd_seq_port_info_set_client(pip, p->alsa_addr.client = snd_seq_client_id(p->h) );
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snd_seq_port_info_set_name(pip,cmStringNullGuard(appNameStr));
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snd_seq_port_info_set_capability(pip,SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_DUPLEX | SND_SEQ_PORT_CAP_SUBS_READ | SND_SEQ_PORT_CAP_SUBS_WRITE );
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snd_seq_port_info_set_type(pip, SND_SEQ_PORT_TYPE_SOFTWARE | SND_SEQ_PORT_TYPE_APPLICATION | SND_SEQ_PORT_TYPE_MIDI_GENERIC );
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snd_seq_port_info_set_midi_channels(pip, 16);
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// cfg for real-time time stamping
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snd_seq_port_info_set_timestamping(pip, 1);
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snd_seq_port_info_set_timestamp_real(pip, 1);
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snd_seq_port_info_set_timestamp_queue(pip, p->alsa_queue);
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// create the client port
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if((p->alsa_addr.port = snd_seq_create_port(p->h,pip)) < 0 )
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{
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rc = _cmMpErrMsg(&p->err,kSysErrMpRC,p->alsa_addr.port,"ALSA client port creation failed.");
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goto errLabel;
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}
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p->devCnt = 0;
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// determine the count of devices
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snd_seq_client_info_set_client(cip, -1);
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while( snd_seq_query_next_client(p->h,cip) == 0)
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p->devCnt += 1;
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// allocate the device array
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p->devArray = cmLhAllocZ(p->lH,cmMpDev_t,p->devCnt);
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// fill in each device record
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snd_seq_client_info_set_client(cip, -1);
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for(i=0; snd_seq_query_next_client(p->h,cip)==0; ++i)
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{
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assert(i<p->devCnt);
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int client = snd_seq_client_info_get_client(cip);
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const char* name = snd_seq_client_info_get_name(cip);
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// initalize the device record
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p->devArray[i].nameStr = cmLhAllocStr(p->lH,cmStringNullGuard(name));
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p->devArray[i].iPortCnt = 0;
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p->devArray[i].oPortCnt = 0;
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p->devArray[i].iPortArray = NULL;
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p->devArray[i].oPortArray = NULL;
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p->devArray[i].clientId = client;
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snd_seq_port_info_set_client(pip,client);
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snd_seq_port_info_set_port(pip,-1);
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// determine the count of in/out ports on this device
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while( snd_seq_query_next_port(p->h,pip) == 0 )
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{
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unsigned caps = snd_seq_port_info_get_capability(pip);
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if( cmIsFlag(caps,SND_SEQ_PORT_CAP_READ) )
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p->devArray[i].iPortCnt += 1;
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if( cmIsFlag(caps,SND_SEQ_PORT_CAP_WRITE) )
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p->devArray[i].oPortCnt += 1;
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}
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// allocate the device port arrays
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if( p->devArray[i].iPortCnt > 0 )
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p->devArray[i].iPortArray = cmLhAllocZ(p->lH,cmMpPort_t,p->devArray[i].iPortCnt);
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if( p->devArray[i].oPortCnt > 0 )
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p->devArray[i].oPortArray = cmLhAllocZ(p->lH,cmMpPort_t,p->devArray[i].oPortCnt);
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snd_seq_port_info_set_client(pip,client); // set the ports client id
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snd_seq_port_info_set_port(pip,-1);
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// fill in the port information
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for(j=0,k=0; snd_seq_query_next_port(p->h,pip) == 0; )
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{
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const char* port = snd_seq_port_info_get_name(pip);
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unsigned type = snd_seq_port_info_get_type(pip);
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unsigned caps = snd_seq_port_info_get_capability(pip);
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snd_seq_addr_t addr = *snd_seq_port_info_get_addr(pip);
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if( cmIsFlag(caps,SND_SEQ_PORT_CAP_READ) )
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{
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assert(j<p->devArray[i].iPortCnt);
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p->devArray[i].iPortArray[j].inputFl = true;
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p->devArray[i].iPortArray[j].nameStr = cmLhAllocStr(p->lH,cmStringNullGuard(port));
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p->devArray[i].iPortArray[j].alsa_type = type;
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p->devArray[i].iPortArray[j].alsa_cap = caps;
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p->devArray[i].iPortArray[j].alsa_addr = addr;
|
||||
p->devArray[i].iPortArray[j].parserH = cmMpParserCreate(i, j, cbFunc, cbDataPtr, parserBufByteCnt, rpt );
|
||||
|
||||
// port->app
|
||||
snd_seq_port_subscribe_set_sender(subs, &addr);
|
||||
snd_seq_port_subscribe_set_dest(subs, &p->alsa_addr);
|
||||
snd_seq_port_subscribe_set_queue(subs, 1);
|
||||
snd_seq_port_subscribe_set_time_update(subs, 1);
|
||||
snd_seq_port_subscribe_set_time_real(subs, 1);
|
||||
if((arc = snd_seq_subscribe_port(p->h, subs)) < 0)
|
||||
rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"Input port to app. subscription failed on port '%s'.",cmStringNullGuard(port));
|
||||
|
||||
|
||||
++j;
|
||||
}
|
||||
|
||||
if( cmIsFlag(caps,SND_SEQ_PORT_CAP_WRITE) )
|
||||
{
|
||||
assert(k<p->devArray[i].oPortCnt);
|
||||
p->devArray[i].oPortArray[k].inputFl = false;
|
||||
p->devArray[i].oPortArray[k].nameStr = cmLhAllocStr(p->lH,cmStringNullGuard(port));
|
||||
p->devArray[i].oPortArray[k].alsa_type = type;
|
||||
p->devArray[i].oPortArray[k].alsa_cap = caps;
|
||||
p->devArray[i].oPortArray[k].alsa_addr = addr;
|
||||
|
||||
// app->port connection
|
||||
snd_seq_port_subscribe_set_sender(subs, &p->alsa_addr);
|
||||
snd_seq_port_subscribe_set_dest( subs, &addr);
|
||||
if((arc = snd_seq_subscribe_port(p->h, subs)) < 0 )
|
||||
rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"App to output port subscription failed on port '%s'.",cmStringNullGuard(port));
|
||||
|
||||
++k;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
errLabel:
|
||||
if( pip != NULL)
|
||||
snd_seq_port_info_free(pip);
|
||||
|
||||
if( cip != NULL )
|
||||
snd_seq_client_info_free(cip);
|
||||
|
||||
return rc;
|
||||
|
||||
}
|
||||
|
||||
|
||||
cmMpRC_t cmMpInitialize( cmCtx_t* ctx, cmMpCallback_t cbFunc, void* cbArg, unsigned parserBufByteCnt, const char* appNameStr )
|
||||
{
|
||||
cmMpRC_t rc = kOkMpRC;
|
||||
int arc = 0;
|
||||
cmMpRoot_t* p = NULL;
|
||||
|
||||
if((rc = cmMpFinalize()) != kOkMpRC )
|
||||
return rc;
|
||||
|
||||
cmErrSetup(&_cmMpRoot.err,rpt,"MIDI Port");
|
||||
// allocate the global root object
|
||||
_cmMpRoot = p = cmMemAllocZ(cmMpRoot_t,1);
|
||||
p->h = NULL;
|
||||
p->alsa_queue = -1;
|
||||
|
||||
_cmMpRoot.cbFunc = cbFunc;
|
||||
_cmMpRoot.cbDataPtr = cbDataPtr;
|
||||
cmErrSetup(&p->err,&ctx->rpt,"MIDI Port");
|
||||
|
||||
// setup the local linked heap manager
|
||||
if(cmLHeapIsValid(p->lH = cmLHeapCreate(2048,ctx)) == false )
|
||||
{
|
||||
rc = _cmMpErrMsg(&p->err,kLHeapErrMpRC,0,"Linked heap initialization failed.");
|
||||
goto errLabel;
|
||||
}
|
||||
|
||||
// create the listening thread
|
||||
if( cmThreadCreate( &p->thH, _cmMpThreadFunc, NULL, &ctx->rpt) != kOkThRC )
|
||||
{
|
||||
rc = _cmMpErrMsg(&p->err,kThreadErrMpRC,0,"Thread initialization failed.");
|
||||
goto errLabel;
|
||||
}
|
||||
|
||||
// initialize the ALSA sequencer
|
||||
if((arc = snd_seq_open(&p->h, "default", SND_SEQ_OPEN_DUPLEX, SND_SEQ_NONBLOCK )) < 0 )
|
||||
{
|
||||
rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"ALSA Sequencer open failed.");
|
||||
goto errLabel;
|
||||
}
|
||||
|
||||
// setup the device and port structures
|
||||
if((rc = _cmMpAllocStruct(p,appNameStr,cbFunc,cbArg,parserBufByteCnt,&ctx->rpt)) != kOkMpRC )
|
||||
goto errLabel;
|
||||
|
||||
// allocate the file descriptors used for polling
|
||||
p->alsa_fdCnt = snd_seq_poll_descriptors_count(p->h, POLLIN);
|
||||
p->alsa_fd = cmMemAllocZ(struct pollfd,p->alsa_fdCnt);
|
||||
snd_seq_poll_descriptors(p->h, p->alsa_fd, p->alsa_fdCnt, POLLIN);
|
||||
|
||||
p->cbFunc = cbFunc;
|
||||
p->cbDataPtr = cbArg;
|
||||
|
||||
// start the sequencer queue
|
||||
if((arc = snd_seq_start_queue(p->h, p->alsa_queue, NULL)) < 0 )
|
||||
{
|
||||
rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"ALSA queue start failed.");
|
||||
goto errLabel;
|
||||
}
|
||||
|
||||
// send any pending commands to the driver
|
||||
snd_seq_drain_output(p->h);
|
||||
|
||||
if( cmThreadPause(p->thH,0) != kOkThRC )
|
||||
rc = _cmMpErrMsg(&p->err,kThreadErrMpRC,0,"Thread start failed.");
|
||||
|
||||
errLabel:
|
||||
|
||||
if( rc != kOkMpRC )
|
||||
cmMpFinalize();
|
||||
|
||||
return rc;
|
||||
|
||||
@ -67,65 +531,336 @@ cmMpRC_t cmMpInitialize( cmMpCallback_t cbFunc, void* cbDataPtr, unsigned parser
|
||||
cmMpRC_t cmMpFinalize()
|
||||
{
|
||||
cmMpRC_t rc = kOkMpRC;
|
||||
cmMpRoot_t* p = _cmMpRoot;
|
||||
|
||||
if( _cmMpRoot != NULL )
|
||||
{
|
||||
int arc;
|
||||
|
||||
// stop the thread first
|
||||
if( cmThreadDestroy(&p->thH) != kOkThRC )
|
||||
{
|
||||
rc = _cmMpErrMsg(&p->err,kThreadErrMpRC,0,"Thread destroy failed.");
|
||||
goto errLabel;
|
||||
}
|
||||
|
||||
// stop the queue
|
||||
if((arc = snd_seq_stop_queue(p->h,p->alsa_queue, NULL)) < 0 )
|
||||
{
|
||||
rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"ALSA queue stop failed.");
|
||||
goto errLabel;
|
||||
}
|
||||
|
||||
// release the alsa queue
|
||||
if( p->alsa_queue != -1 )
|
||||
{
|
||||
if((arc = snd_seq_free_queue(p->h,p->alsa_queue)) < 0 )
|
||||
rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"ALSA queue release failed.");
|
||||
else
|
||||
p->alsa_queue = -1;
|
||||
}
|
||||
|
||||
// release the alsa system handle
|
||||
if( p->h != NULL )
|
||||
{
|
||||
if( (arc = snd_seq_close(p->h)) < 0 )
|
||||
rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"ALSA sequencer close failed.");
|
||||
else
|
||||
p->h = NULL;
|
||||
}
|
||||
|
||||
// release each parser
|
||||
unsigned i,j;
|
||||
for(i=0; i<p->devCnt; ++i)
|
||||
for(j=0; j<p->devArray[i].iPortCnt; ++j)
|
||||
cmMpParserDestroy(&p->devArray[i].iPortArray[j].parserH);
|
||||
|
||||
cmLHeapDestroy(&p->lH);
|
||||
|
||||
cmMemFree(p->alsa_fd);
|
||||
|
||||
cmMemPtrFree(&_cmMpRoot);
|
||||
|
||||
}
|
||||
|
||||
errLabel:
|
||||
return rc;
|
||||
}
|
||||
|
||||
bool cmMpIsInitialized()
|
||||
{ return false; }
|
||||
{ return _cmMpRoot!=NULL; }
|
||||
|
||||
unsigned cmMpDeviceCount()
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
{ return _cmMpRoot==NULL ? 0 : _cmMpRoot->devCnt; }
|
||||
|
||||
const char* cmMpDeviceName( unsigned devIdx )
|
||||
{ return NULL;
|
||||
{
|
||||
if( _cmMpRoot==NULL || devIdx>=_cmMpRoot->devCnt)
|
||||
return NULL;
|
||||
|
||||
return _cmMpRoot->devArray[devIdx].nameStr;
|
||||
}
|
||||
|
||||
unsigned cmMpDevicePortCount( unsigned devIdx, unsigned flags )
|
||||
{
|
||||
if( _cmMpRoot==NULL || devIdx>=_cmMpRoot->devCnt)
|
||||
return 0;
|
||||
|
||||
if( cmIsFlag(flags,kInMpFl) )
|
||||
return _cmMpRoot->devArray[devIdx].iPortCnt;
|
||||
|
||||
return _cmMpRoot->devArray[devIdx].oPortCnt;
|
||||
}
|
||||
|
||||
const char* cmMpDevicePortName( unsigned devIdx, unsigned flags, unsigned portIdx )
|
||||
{
|
||||
return NULL;
|
||||
if( _cmMpRoot==NULL || devIdx>=_cmMpRoot->devCnt)
|
||||
return 0;
|
||||
|
||||
if( cmIsFlag(flags,kInMpFl) )
|
||||
{
|
||||
if( portIdx >= _cmMpRoot->devArray[devIdx].iPortCnt )
|
||||
return 0;
|
||||
|
||||
return _cmMpRoot->devArray[devIdx].iPortArray[portIdx].nameStr;
|
||||
}
|
||||
|
||||
if( portIdx >= _cmMpRoot->devArray[devIdx].oPortCnt )
|
||||
return 0;
|
||||
|
||||
return _cmMpRoot->devArray[devIdx].oPortArray[portIdx].nameStr;
|
||||
}
|
||||
|
||||
|
||||
cmMpRC_t cmMpDeviceSend( unsigned devIdx, unsigned portIdx, cmMidiByte_t status, cmMidiByte_t d0, cmMidiByte_t d1 )
|
||||
{
|
||||
return kOkMpRC;
|
||||
cmMpRC_t rc = kOkMpRC;
|
||||
snd_seq_event_t ev;
|
||||
int arc;
|
||||
cmMpRoot_t* p = _cmMpRoot;
|
||||
|
||||
assert( p!=NULL && devIdx < p->devCnt && portIdx < p->devArray[devIdx].oPortCnt );
|
||||
|
||||
cmMpPort_t* port = p->devArray[devIdx].oPortArray + portIdx;
|
||||
|
||||
snd_seq_ev_clear(&ev);
|
||||
snd_seq_ev_set_source(&ev, p->alsa_addr.port);
|
||||
//snd_seq_ev_set_subs(&ev);
|
||||
|
||||
snd_seq_ev_set_dest(&ev, port->alsa_addr.client, port->alsa_addr.port);
|
||||
snd_seq_ev_set_direct(&ev);
|
||||
snd_seq_ev_set_fixed(&ev);
|
||||
|
||||
|
||||
switch( status & 0xf0 )
|
||||
{
|
||||
case kNoteOffMdId:
|
||||
ev.type = SND_SEQ_EVENT_NOTEOFF;
|
||||
ev.data.note.note = d0;
|
||||
ev.data.note.velocity = d1;
|
||||
break;
|
||||
|
||||
case kNoteOnMdId:
|
||||
ev.type = SND_SEQ_EVENT_NOTEON;
|
||||
ev.data.note.note = d0;
|
||||
ev.data.note.velocity = d1;
|
||||
break;
|
||||
|
||||
case kPolyPresMdId:
|
||||
ev.type = SND_SEQ_EVENT_KEYPRESS ;
|
||||
ev.data.note.note = d0;
|
||||
ev.data.note.velocity = d1;
|
||||
break;
|
||||
|
||||
case kCtlMdId:
|
||||
ev.type = SND_SEQ_EVENT_CONTROLLER;
|
||||
ev.data.control.param = d0;
|
||||
ev.data.control.value = d1;
|
||||
break;
|
||||
|
||||
case kPgmMdId:
|
||||
ev.type = SND_SEQ_EVENT_PGMCHANGE;
|
||||
ev.data.control.param = d0;
|
||||
ev.data.control.value = d1;
|
||||
break;
|
||||
|
||||
case kChPresMdId:
|
||||
ev.type = SND_SEQ_EVENT_CHANPRESS;
|
||||
ev.data.control.param = d0;
|
||||
ev.data.control.value = d1;
|
||||
break;
|
||||
|
||||
case kPbendMdId:
|
||||
{
|
||||
int val = d0;
|
||||
val <<= 7;
|
||||
val += d1;
|
||||
val -= 8192;
|
||||
|
||||
ev.type = SND_SEQ_EVENT_PITCHBEND;
|
||||
ev.data.control.param = 0;
|
||||
ev.data.control.value = val;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
rc = _cmMpErrMsg(&p->err,kInvalidArgMpRC,0,"Cannot send an invalid MIDI status byte:0x%x.",status & 0xf0);
|
||||
goto errLabel;
|
||||
}
|
||||
|
||||
ev.data.note.channel = status & 0x0f;
|
||||
|
||||
if((arc = snd_seq_event_output(p->h, &ev)) < 0 )
|
||||
rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"MIDI event output failed.");
|
||||
|
||||
if((arc = snd_seq_drain_output(p->h)) < 0 )
|
||||
rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"MIDI event output drain failed.");
|
||||
|
||||
errLabel:
|
||||
return rc;
|
||||
}
|
||||
|
||||
cmMpRC_t cmMpDeviceSendData( unsigned devIdx, unsigned portIdx, const cmMidiByte_t* dataPtr, unsigned byteCnt )
|
||||
{
|
||||
return kOkMpRC;
|
||||
|
||||
cmMpRoot_t* p = _cmMpRoot;
|
||||
return cmErrMsg(&p->err,kNotImplMpRC,"cmMpDeviceSendData() has not yet been implemented for ALSA.");
|
||||
}
|
||||
|
||||
cmMpRC_t cmMpInstallCallback( unsigned devIdx, unsigned portIdx, cmMpCallback_t cbFunc, void* cbDataPtr )
|
||||
{
|
||||
cmMpRC_t rc = kOkMpRC;
|
||||
unsigned di;
|
||||
unsigned dn = cmMpDeviceCount();
|
||||
cmMpRoot_t* p = _cmMpRoot;
|
||||
|
||||
for(di=0; di<dn; ++di)
|
||||
if( di==devIdx || devIdx == -1 )
|
||||
{
|
||||
unsigned pi;
|
||||
unsigned pn = cmMpDevicePortCount(di,kInMpFl);
|
||||
|
||||
for(pi=0; pi<pn; ++pi)
|
||||
if( pi==portIdx || portIdx == -1 )
|
||||
if( cmMpParserInstallCallback( p->devArray[di].iPortArray[pi].parserH, cbFunc, cbDataPtr ) != kOkMpRC )
|
||||
goto errLabel;
|
||||
}
|
||||
|
||||
errLabel:
|
||||
return rc;
|
||||
}
|
||||
|
||||
cmMpRC_t cmMpRemoveCallback( unsigned devIdx, unsigned portIdx, cmMpCallback_t cbFunc, void* cbDataPtr )
|
||||
{
|
||||
cmMpRC_t rc = kOkMpRC;
|
||||
unsigned di;
|
||||
unsigned dn = cmMpDeviceCount();
|
||||
unsigned remCnt = 0;
|
||||
cmMpRoot_t* p = _cmMpRoot;
|
||||
|
||||
for(di=0; di<dn; ++di)
|
||||
if( di==devIdx || devIdx == -1 )
|
||||
{
|
||||
unsigned pi;
|
||||
unsigned pn = cmMpDevicePortCount(di,kInMpFl);
|
||||
|
||||
for(pi=0; pi<pn; ++pi)
|
||||
if( pi==portIdx || portIdx == -1 )
|
||||
if( cmMpParserHasCallback( p->devArray[di].iPortArray[pi].parserH, cbFunc, cbDataPtr ) )
|
||||
{
|
||||
if( cmMpParserRemoveCallback( p->devArray[di].iPortArray[pi].parserH, cbFunc, cbDataPtr ) != kOkMpRC )
|
||||
goto errLabel;
|
||||
else
|
||||
++remCnt;
|
||||
}
|
||||
}
|
||||
|
||||
if( remCnt == 0 && dn > 0 )
|
||||
rc = _cmMpErrMsg(&p->err,kCbNotFoundMpRC,0,"The callback was not found on any of the specified devices or ports.");
|
||||
|
||||
errLabel:
|
||||
return rc;
|
||||
}
|
||||
|
||||
bool cmMpUsesCallback( unsigned devIdx, unsigned portIdx, cmMpCallback_t cbFunc, void* cbDataPtr )
|
||||
{
|
||||
unsigned di;
|
||||
unsigned dn = cmMpDeviceCount();
|
||||
cmMpRoot_t* p = _cmMpRoot;
|
||||
|
||||
for(di=0; di<dn; ++di)
|
||||
if( di==devIdx || devIdx == -1 )
|
||||
{
|
||||
unsigned pi;
|
||||
unsigned pn = cmMpDevicePortCount(di,kInMpFl);
|
||||
|
||||
for(pi=0; pi<pn; ++pi)
|
||||
if( pi==portIdx || portIdx == -1 )
|
||||
if( cmMpParserHasCallback( p->devArray[di].iPortArray[pi].parserH, cbFunc, cbDataPtr ) )
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
void _cmMpReportPort( cmRpt_t* rpt, const cmMpPort_t* port )
|
||||
{
|
||||
cmRptPrintf(rpt," client:%i port:%i %s caps:(",port->alsa_addr.client,port->alsa_addr.port,port->nameStr);
|
||||
if( port->alsa_cap & SND_SEQ_PORT_CAP_READ ) cmRptPrintf(rpt,"Read " );
|
||||
if( port->alsa_cap & SND_SEQ_PORT_CAP_WRITE ) cmRptPrintf(rpt,"Writ " );
|
||||
if( port->alsa_cap & SND_SEQ_PORT_CAP_SYNC_READ ) cmRptPrintf(rpt,"Syrd " );
|
||||
if( port->alsa_cap & SND_SEQ_PORT_CAP_SYNC_WRITE ) cmRptPrintf(rpt,"Sywr " );
|
||||
if( port->alsa_cap & SND_SEQ_PORT_CAP_DUPLEX ) cmRptPrintf(rpt,"Dupl " );
|
||||
if( port->alsa_cap & SND_SEQ_PORT_CAP_SUBS_READ ) cmRptPrintf(rpt,"Subr " );
|
||||
if( port->alsa_cap & SND_SEQ_PORT_CAP_SUBS_WRITE ) cmRptPrintf(rpt,"Subw " );
|
||||
if( port->alsa_cap & SND_SEQ_PORT_CAP_NO_EXPORT ) cmRptPrintf(rpt,"Nexp " );
|
||||
|
||||
cmRptPrintf(rpt,") type:(");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_SPECIFIC ) cmRptPrintf(rpt,"Spec ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_MIDI_GENERIC) cmRptPrintf(rpt,"Gnrc ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_MIDI_GM ) cmRptPrintf(rpt,"GM ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_MIDI_GS ) cmRptPrintf(rpt,"GS ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_MIDI_XG ) cmRptPrintf(rpt,"XG ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_MIDI_MT32 ) cmRptPrintf(rpt,"MT32 ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_MIDI_GM2 ) cmRptPrintf(rpt,"GM2 ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_SYNTH ) cmRptPrintf(rpt,"Syn ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_DIRECT_SAMPLE) cmRptPrintf(rpt,"Dsmp ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_SAMPLE ) cmRptPrintf(rpt,"Samp ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_HARDWARE ) cmRptPrintf(rpt,"Hwar ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_SOFTWARE ) cmRptPrintf(rpt,"Soft ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_SYNTHESIZER ) cmRptPrintf(rpt,"Sizr ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_PORT ) cmRptPrintf(rpt,"Port ");
|
||||
if( port->alsa_type & SND_SEQ_PORT_TYPE_APPLICATION ) cmRptPrintf(rpt,"Appl ");
|
||||
|
||||
cmRptPrintf(rpt,")\n");
|
||||
|
||||
}
|
||||
|
||||
void cmMpReport( cmRpt_t* rpt )
|
||||
{
|
||||
cmMpRoot_t* p = _cmMpRoot;
|
||||
unsigned i,j;
|
||||
|
||||
cmRptPrintf(rpt,"Buffer size bytes in:%i out:%i\n",snd_seq_get_input_buffer_size(p->h),snd_seq_get_output_buffer_size(p->h));
|
||||
|
||||
for(i=0; i<p->devCnt; ++i)
|
||||
{
|
||||
const cmMpDev_t* d = p->devArray + i;
|
||||
|
||||
cmRptPrintf(rpt,"%i : Device: %s \n",i,cmStringNullGuard(d->nameStr));
|
||||
|
||||
if(d->iPortCnt > 0 )
|
||||
cmRptPrintf(rpt," Input:\n");
|
||||
|
||||
for(j=0; j<d->iPortCnt; ++j)
|
||||
_cmMpReportPort(rpt,d->iPortArray+j);
|
||||
|
||||
if(d->oPortCnt > 0 )
|
||||
cmRptPrintf(rpt," Output:\n");
|
||||
|
||||
for(j=0; j<d->oPortCnt; ++j)
|
||||
_cmMpReportPort(rpt,d->oPortArray+j);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user