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7ff56ac688
...
08c199d5b3
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@ -8,7 +8,7 @@ A [Nim] wrapper for the [JACK] [C API]
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This software is in *alpha status* and has no official release yet.
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The basic JACK APIs (client lifecycle, ports, callbacks) have been wrapped and
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are functional (see [examples]), but latency, transport and meta-data APIs still
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are functional (see [examples]), but MIDI, transport and meta-data APIs still
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need wrapping. Also, symbol names may still be changed and things moved around
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before the first public release.
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@ -1,89 +0,0 @@
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import std/[logging, os, strutils]
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import signal
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import jacket
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var jclient: ClientP
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var event: MidiEvent
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var midiPort: PortP
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var status: cint
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var exitSignalled: bool = false
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var log = newConsoleLogger(when defined(release): lvlInfo else: lvlDebug)
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proc cleanup() =
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debug "Cleaning up..."
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if jclient != nil:
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discard jclient.deactivate()
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discard jclient.clientClose()
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jclient = nil
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proc errorCb(msg: cstring) {.cdecl.} =
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# Suppress verbose JACK error messages when server is not available by
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# default. Pass ``lvlAll`` when creating the logger to enable them.
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debug "JACK error: " & $msg
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proc signalCb(sig: cint) {.noconv.} =
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info "Received signal: " & $sig
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exitSignalled = true
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proc shutdownCb(arg: pointer = nil) {.cdecl.} =
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info "JACK server has shut down."
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exitSignalled = true
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proc printMidiEvent(event: var MidiEvent) =
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if event.size <= 3:
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for i in 0..<event.size:
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stdout.write(event.buffer[i].toHex)
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stdout.write("h ")
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stdout.write("\n")
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stdout.flushFile()
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proc processCb*(nFrames: NFrames, arg: pointer): cint {.cdecl.} =
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let inbuf = portGetBuffer(midiPort, nFrames)
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let count = midiGetEventCount(inbuf)
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for i in 0..<count:
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if midiEventGet(event.addr, inbuf, i.uint32) == 0:
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printMidiEvent(event)
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proc main() =
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addHandler(log)
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# Create JACK client
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setErrorFunction(errorCb)
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jclient = clientOpen("jacket_midi_print", NoStartServer.ord or UseExactName.ord, status.addr)
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debug "JACK server status: " & $status
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if jclient == nil:
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error getJackStatusErrorString(status)
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quit QuitFailure
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# Set up signal handlers to clean up on exit
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when defined(windows):
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setSignalProc(signalCb, SIGABRT, SIGINT, SIGTERM)
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else:
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setSignalProc(signalCb, SIGABRT, SIGHUP, SIGINT, SIGQUIT, SIGTERM)
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# Register JACK callbacks
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if jclient.setProcessCallback(processCb, nil) != 0:
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error "Could not set JACK process callback function."
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cleanup()
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quit QuitFailure
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jclient.onShutdown(shutdownCb, nil)
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# Create output port
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midiPort = jclient.portRegister("out_1", JACK_DEFAULT_MIDI_TYPE, PortIsInput.ord, 0)
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# Activate JACK client ...
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if jclient.activate() == 0:
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# ... and keep running until a signal is received
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while not exitSignalled:
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sleep(50)
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cleanup()
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when isMainModule:
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main()
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159
src/jacket.nim
159
src/jacket.nim
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@ -40,15 +40,6 @@ type
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Port = distinct object
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PortP* = ptr Port
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type
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MidiData* = uint8
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MidiEvent* {.importc: "jack_midi_event_t", header: "<jack/midiport.h>".} = object
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time*: NFrames
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size*: csize_t
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buffer*: ptr UncheckedArray[MidiData]
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MidiEventP* = ptr MidiEvent
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type
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JackOptions* {.size: sizeof(cint) pure.} = enum
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NullOption = 0x00,
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@ -112,16 +103,16 @@ type
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# ----------------------------- Version info ------------------------------
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# void jack_get_version(int *major_ptr, int *minor_ptr, int *micro_ptr, int *proto_ptr)
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# void jack_get_version(int *major_ptr, int *minor_ptr, int *micro_ptr, int *proto_ptr) ;
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proc getVersion*(major: ptr cint; minor: ptr cint; micro: ptr cint; proto: ptr cint) {.importc: "jack_get_version".}
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# const char * jack_get_version_string(void)
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# const char * jack_get_version_string(void) ;
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proc getVersionString*(): cstring {.importc: "jack_get_version_string".}
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# --------------------------- Memory management ---------------------------
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# void jack_free(void* ptr)
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# void jack_free(void* ptr) ;
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proc free*(`ptr`: pointer) {.importc: "jack_free".}
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@ -129,29 +120,29 @@ proc free*(`ptr`: pointer) {.importc: "jack_free".}
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# jack_client_t * jack_client_open (char *client_name,
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# jack_options_t options,
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# jack_status_t *status, ...)
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# jack_status_t *status, ...) ;
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proc clientOpen*(clientName: cstring; options: cint; status: ptr cint): ClientP {.
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varargs, importc: "jack_client_open".}
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# DEPRECATED
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# proc clientNew*(clientName: cstring): ClientP {.importc: "jack_client_new".}
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# int jack_client_close (jack_client_t *client)
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# int jack_client_close (jack_client_t *client) ;
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proc clientClose*(client: ClientP): cint {.importc: "jack_client_close"}
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# int jack_client_name_size (void)
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# int jack_client_name_size (void) ;
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proc clientNameSize*(): cint {.importc: "jack_client_name_size"}
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# char * jack_get_client_name (jack_client_t *client)
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# char * jack_get_client_name (jack_client_t *client) ;
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proc getClientName*(client: ClientP): cstring {.importc: "jack_get_client_name".}
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# char *jack_get_uuid_for_client_name (jack_client_t *client,
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# const char *client_name)
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# const char *client_name) ;
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proc getUuidForClientName*(client: ClientP; clientName: cstring): cstring {.
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importc: "jack_get_uuid_for_client_name".}
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# char *jack_get_client_name_by_uuid (jack_client_t *client,
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# const char *client_uuid )
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# const char *client_uuid ) ;
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proc getClientNameByUuid*(client: ClientP; clientUuid: cstring): cstring {.
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importc: "jack_get_client_name_by_uuid".}
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@ -162,31 +153,31 @@ proc internalClientNew*(clientName: cstring; loadName: cstring; loadInit: cstrin
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proc internalClientClose*(clientName: cstring) {.importc: "jack_internal_client_close".}
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]#
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# int jack_activate (jack_client_t *client)
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# int jack_activate (jack_client_t *client) ;
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proc activate*(client: ClientP): cint {.importc: "jack_activate".}
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# int jack_deactivate (jack_client_t *client)
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# int jack_deactivate (jack_client_t *client) ;
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proc deactivate*(client: ClientP): cint {.importc: "jack_deactivate".}
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# int jack_get_client_pid (const char *name)
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# int jack_get_client_pid (const char *name) ;
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proc getClientPid*(name: cstring): cint {.importc: "jack_get_client_pid".}
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# FIXME: not implemented yet
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# jack_native_thread_t jack_client_thread_id (jack_client_t *client)
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# jack_native_thread_t jack_client_thread_id (jack_client_t *client) ;
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# proc clientThreadId*(client: ClientP): NativeThread {.
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# importc: "jack_client_thread_id".}
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# int jack_is_realtime (jack_client_t *client)
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# int jack_is_realtime (jack_client_t *client) ;
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proc isRealtime*(client: ClientP): cint {.importc: "jack_is_realtime".}
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# DEPRECATED
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# proc threadWait*(client: ClientP; status: cint): NFrames {.
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# importc: "jack_thread_wait".}
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# jack_nframes_t jack_cycle_wait (jack_client_t* client)
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# jack_nframes_t jack_cycle_wait (jack_client_t* client) ;
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proc cycleWait*(client: ClientP): NFrames {.importc: "jack_cycle_wait".}
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# void jack_cycle_signal (jack_client_t* client, int status)
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# void jack_cycle_signal (jack_client_t* client, int status) ;
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proc cycleSignal*(client: ClientP; status: cint) {.importc: "jack_cycle_signal".}
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@ -242,23 +233,23 @@ proc setLatencyCallback*(client: ClientP; latencyCallback: JackLatencyCallback;
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# -------------------------- Server Client Control ------------------------
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# int jack_set_freewheel(jack_client_t* client, int onoff)
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# int jack_set_freewheel(jack_client_t* client, int onoff) ;
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proc setFreewheel*(client: ClientP; onoff: cint): cint {.importc: "jack_set_freewheel".}
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# int jack_set_buffer_size (jack_client_t *client, jack_nframes_t nframes)
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# int jack_set_buffer_size (jack_client_t *client, jack_nframes_t nframes) ;
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proc setBufferSize*(client: ClientP; nframes: NFrames): cint {.importc: "jack_set_buffer_size".}
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#jack_nframes_t jack_get_sample_rate (jack_client_t *)
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#jack_nframes_t jack_get_sample_rate (jack_client_t *) ;
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proc getSampleRate*(client: ClientP): NFrames {.importc: "jack_get_sample_rate".}
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# jack_nframes_t jack_get_buffer_size (jack_client_t *)
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# jack_nframes_t jack_get_buffer_size (jack_client_t *) ;
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proc getBufferSize*(client: ClientP): NFrames {.importc: "jack_get_buffer_size".}
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# DEPRECATED
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# proc engineTakeoverTimebase*(a1: ClientP): cint {.
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# importc: "jack_engine_takeover_timebase".}
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# float jack_cpu_load (jack_client_t *client)
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# float jack_cpu_load (jack_client_t *client) ;
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proc cpuLoad*(client: ClientP): cfloat {.importc: "jack_cpu_load".}
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@ -268,53 +259,53 @@ proc cpuLoad*(client: ClientP): cfloat {.importc: "jack_cpu_load".}
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# const char *port_name,
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# const char *port_type,
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# unsigned long flags,
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# unsigned long buffer_size)
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# unsigned long buffer_size) ;
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proc portRegister*(client: ClientP; portName: cstring; portType: cstring;
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flags: culong; bufferSize: culong): PortP {.importc: "jack_port_register".}
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# int jack_port_unregister (jack_client_t *client, jack_port_t *port)
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# int jack_port_unregister (jack_client_t *client, jack_port_t *port) ;
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proc portUnregister*(client: ClientP; port: PortP): cint {.importc: "jack_port_unregister".}
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# void * jack_port_get_buffer (jack_port_t *port, jack_nframes_t)
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# void * jack_port_get_buffer (jack_port_t *port, jack_nframes_t) ;
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proc portGetBuffer*(port: PortP; nframes: NFrames): pointer {.importc: "jack_port_get_buffer".}
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# jack_uuid_t jack_port_uuid (const jack_port_t *port)
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# jack_uuid_t jack_port_uuid (const jack_port_t *port) ;
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proc portUuid*(port: PortP): Uuid {.importc: "jack_port_uuid".}
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# const char * jack_port_name (const jack_port_t *port)
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# const char * jack_port_name (const jack_port_t *port) ;
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proc portName*(port: PortP): cstring {.importc: "jack_port_name".}
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# const char * jack_port_short_name (const jack_port_t *port)
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# const char * jack_port_short_name (const jack_port_t *port) ;
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proc portShortName*(port: PortP): cstring {.importc: "jack_port_short_name".}
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# int jack_port_flags (const jack_port_t *port)
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# int jack_port_flags (const jack_port_t *port) ;
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proc portFlags*(port: PortP): cint {.importc: "jack_port_flags".}
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# const char * jack_port_type (const jack_port_t *port)
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# const char * jack_port_type (const jack_port_t *port) ;
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proc portType*(port: PortP): cstring {.importc: "jack_port_type".}
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# jack_port_type_id_t jack_port_type_id (const jack_port_t *port)
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# jack_port_type_id_t jack_port_type_id (const jack_port_t *port) ;
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proc portTypeId*(port: PortP): PortTypeId {.importc: "jack_port_type_id".}
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# int jack_port_is_mine (const jack_client_t *client, const jack_port_t *port)
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# int jack_port_is_mine (const jack_client_t *client, const jack_port_t *port) ;
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proc portIsMine*(client: ClientP; port: PortP): cint {.
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importc: "jack_port_is_mine".}
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# int jack_port_connected (const jack_port_t *port)
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# int jack_port_connected (const jack_port_t *port) ;
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proc portConnected*(port: PortP): cint {.importc: "jack_port_connected".}
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# int jack_port_connected_to (const jack_port_t *port,
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# const char *port_name)
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# const char *port_name) ;
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proc portConnectedTo*(port: PortP; portName: cstring): cint {.importc: "jack_port_connected_to".}
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# const char ** jack_port_get_connections (const jack_port_t *port)
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# const char ** jack_port_get_connections (const jack_port_t *port) ;
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#
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# CAVEAT: The caller is responsible for calling jack_free() on any non-NULL
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# returned value.
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proc portGetConnections*(port: PortP): cstringArray {.importc: "jack_port_get_connections".}
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# const char ** jack_port_get_all_connections (const jack_client_t *client,
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# const jack_port_t *port)
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# const jack_port_t *port) ;
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#
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# CAVEAT: The caller is responsible for calling jack_free() on any non-NULL
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# returned value.
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@ -329,96 +320,72 @@ proc portUntie*(port: PortP): cint {.importc: "jack_port_untie".}
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proc portSetName*(port: PortP; portName: cstring): cint {.importc: "jack_port_set_name".}
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]#
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# int jack_port_rename (jack_client_t* client, jack_port_t *port, const char *port_name)
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# int jack_port_rename (jack_client_t* client, jack_port_t *port, const char *port_name) ;
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proc portRename*(client: ClientP; port: PortP; portName: cstring): cint {.importc: "jack_port_rename".}
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# int jack_port_set_alias (jack_port_t *port, const char *alias)
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# int jack_port_set_alias (jack_port_t *port, const char *alias) ;
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proc portSetAlias*(port: PortP; alias: cstring): cint {.importc: "jack_port_set_alias".}
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# int jack_port_unset_alias (jack_port_t *port, const char *alias)
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# int jack_port_unset_alias (jack_port_t *port, const char *alias) ;
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proc portUnsetAlias*(port: PortP; alias: cstring): cint {.importc: "jack_port_unset_alias".}
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# int jack_port_get_aliases (const jack_port_t *port, char* const aliases[2])
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# int jack_port_get_aliases (const jack_port_t *port, char* const aliases[2]) ;
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proc portGetAliases*(port: PortP; aliases: array[2, cstring]): cint {.importc: "jack_port_get_aliases".}
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#int jack_port_request_monitor (jack_port_t *port, int onoff)
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#int jack_port_request_monitor (jack_port_t *port, int onoff) ;
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proc portRequestMonitor*(port: PortP; onoff: cint): cint {.importc: "jack_port_request_monitor".}
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# int jack_port_request_monitor_by_name (jack_client_t *client,
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# const char *port_name, int onoff)
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# const char *port_name, int onoff) ;
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proc portRequestMonitorByName*(client: ClientP; portName: cstring; onoff: cint): cint {.
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importc: "jack_port_request_monitor_by_name".}
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# int jack_port_ensure_monitor (jack_port_t *port, int onoff)
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# int jack_port_ensure_monitor (jack_port_t *port, int onoff) ;
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proc portEnsureMonitor*(port: PortP; onoff: cint): cint {.
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importc: "jack_port_ensure_monitor".}
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# int jack_port_monitoring_input (jack_port_t *port)
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# int jack_port_monitoring_input (jack_port_t *port) ;
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proc portMonitoringInput*(port: PortP): cint {.importc: "jack_port_monitoring_input".}
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# ------------------------------ Connections ------------------------------
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# int jack_connect (jack_client_t *client,
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# const char *source_port,
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# const char *destination_port)
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# const char *destination_port) ;
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proc connect*(client: ClientP; srcPort: cstring; destPort: cstring): cint {.importc: "jack_connect".}
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# int jack_disconnect (jack_client_t *client,
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# const char *source_port,
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# const char *destination_port)
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# const char *destination_port) ;
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proc disconnect*(client: ClientP; srcPort: cstring; destPort: cstring): cint {.importc: "jack_disconnect".}
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# int jack_port_disconnect (jack_client_t *client, jack_port_t *port)
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# int jack_port_disconnect (jack_client_t *client, jack_port_t *port) ;
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proc portDisconnect*(client: ClientP; port: PortP): cint {.importc: "jack_port_disconnect".}
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# int jack_port_name_size(void)
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# int jack_port_name_size(void) ;
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proc portNameSize*(): cint {.importc: "jack_port_name_size".}
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# int jack_port_type_size(void)
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# int jack_port_type_size(void) ;
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proc portTypeSize*(): cint {.importc: "jack_port_type_size".}
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# size_t jack_port_type_get_buffer_size (jack_client_t *client, const char *port_type)
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# size_t jack_port_type_get_buffer_size (jack_client_t *client, const char *port_type) ;
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proc portTypeGetBufferSize*(client: ClientP; portType: cstring): csize_t {.
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importc: "jack_port_type_get_buffer_size".}
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# --------------------------------- MIDI ----------------------------------
|
||||
|
||||
# jack_nframes_t jack_midi_get_event_count (void *port_buffer)
|
||||
proc midiGetEventCount*(portBuffer: pointer): NFrames {.importc: "jack_midi_get_event_count".}
|
||||
|
||||
# int jack_midi_event_get (jack_midi_event_t *event, void *port_buffer, uint32_t event_index)
|
||||
proc midiEventGet*(event: MidiEventP, portBuffer: pointer, eventIndex: uint32): cint {.
|
||||
importc: "jack_midi_event_get".}
|
||||
|
||||
# void jack_midi_clear_buffer (void *port_buffer)
|
||||
proc midiClearBuffer*(portBuffer: pointer) {.importc: "jack_midi_clear_buffer".}
|
||||
|
||||
# size_t jack_midi_max_event_size (void *port_buffer)
|
||||
proc midiMaxEventSize*(portBuffer: pointer): csize_t {.importc: "jack_midi_max_event_size".}
|
||||
|
||||
# jack_midi_data_t * jack_midi_event_reserve (void *port_buffer, jack_nframes_t time, size_t data_size)
|
||||
proc midiEventReserve*(portBuffer: pointer, time: NFrames, dataSize: csize_t): ptr MidiData {.
|
||||
importc: "jack_midi_event_reserve".}
|
||||
|
||||
# int jack_midi_event_write (void *port_buffer, jack_nframes_t time, const jack_midi_data_t *data, size_t data_size)
|
||||
proc midiEventWrite*(portBuffer: pointer, time: NFrames, data: ptr MidiData, dataSize: csize_t): int {.
|
||||
importc: "jack_midi_event_write".}
|
||||
|
||||
# uint32_t jack_midi_get_lost_event_count (void *port_buffer)
|
||||
proc midiGetLostEventCount*(portBuffer: pointer): uint32 {.importc: "jack_midi_get_lost_event_count".}
|
||||
|
||||
# -------------------------------- Latency --------------------------------
|
||||
|
||||
#[ FIXME: not implemented yet
|
||||
# void jack_port_set_latency (jack_port_t *port, jack_nframes_t)
|
||||
# void jack_port_set_latency (jack_port_t *port, jack_nframes_t) ;
|
||||
proc portSetLatency*(port: PortP; a2: NFrames) {.importc: "jack_port_set_latency".}
|
||||
|
||||
# void jack_port_get_latency_range (jack_port_t *port, jack_latency_callback_mode_t mode, jack_latency_range_t *range)
|
||||
#[ FIXME: not implemented yet
|
||||
# void jack_port_get_latency_range (jack_port_t *port, jack_latency_callback_mode_t mode, jack_latency_range_t *range) ;
|
||||
proc portGetLatencyRange*(port: PortP; mode: LatencyCallbackMode;
|
||||
range: ptr LatencyRange) {.importc: "jack_port_get_latency_range".}
|
||||
|
||||
proc portSetLatencyRange*(port: PortP; mode: LatencyCallbackMode;
|
||||
range: ptr LatencyRange) {.importc: "jack_port_set_latency_range".}
|
||||
]#
|
||||
|
||||
proc recomputeTotalLatencies*(client: ClientP): cint {.importc: "jack_recompute_total_latencies".}
|
||||
|
||||
|
@ -434,46 +401,46 @@ proc recomputeTotalLatency*(a1: ClientP; port: PortP): cint {.importc: "jack_rec
|
|||
# const char ** jack_get_ports (jack_client_t *client,
|
||||
# const char *port_name_pattern,
|
||||
# const char *type_name_pattern,
|
||||
# unsigned long flags)
|
||||
# unsigned long flags) ;
|
||||
#
|
||||
# CAVEAT: The caller is responsible for calling jack_free() on any non-NULL
|
||||
# returned value.
|
||||
proc getPorts*(client: ClientP; portNamePattern: cstring;
|
||||
typeNamePattern: cstring; flags: culong): cstringArray {.importc: "jack_get_ports".}
|
||||
|
||||
# jack_port_t * jack_port_by_name (jack_client_t *client, const char *port_name)
|
||||
# jack_port_t * jack_port_by_name (jack_client_t *client, const char *port_name) ;
|
||||
proc portByName*(client: ClientP; portName: cstring): PortP {.importc: "jack_port_by_name".}
|
||||
|
||||
# jack_port_t * jack_port_by_id (jack_client_t *client, jack_port_id_t port_id)
|
||||
# jack_port_t * jack_port_by_id (jack_client_t *client, jack_port_id_t port_id) ;
|
||||
proc portById*(client: ClientP; portId: PortId): PortP {.importc: "jack_port_by_id".}
|
||||
|
||||
# ----------------------------- Time handling -----------------------------
|
||||
|
||||
# jack_nframes_t jack_frames_since_cycle_start (const jack_client_t *)
|
||||
# jack_nframes_t jack_frames_since_cycle_start (const jack_client_t *) ;
|
||||
proc framesSinceCycleStart*(client: ClientP): NFrames {.importc: "jack_frames_since_cycle_start".}
|
||||
|
||||
# jack_nframes_t jack_frame_time (const jack_client_t *)
|
||||
# jack_nframes_t jack_frame_time (const jack_client_t *) ;
|
||||
proc frameTime*(client: ClientP): NFrames {.importc: "jack_frame_time".}
|
||||
|
||||
# jack_nframes_t jack_last_frame_time (const jack_client_t *client)
|
||||
# jack_nframes_t jack_last_frame_time (const jack_client_t *client) ;
|
||||
proc lastFrameTime*(client: ClientP): NFrames {.importc: "jack_last_frame_time".}
|
||||
|
||||
# int jack_get_cycle_times(const jack_client_t *client,
|
||||
# jack_nframes_t *current_frames,
|
||||
# jack_time_t *current_usecs,
|
||||
# jack_time_t *next_usecs,
|
||||
# float *period_usecs)
|
||||
# float *period_usecs) ;
|
||||
proc getCycleTimes*(client: ClientP; currentFrames: ptr NFrames;
|
||||
currentUsecs: ptr Time; nextUsecs: ptr Time;
|
||||
periodUsecs: ptr cfloat): cint {.importc: "jack_get_cycle_times".}
|
||||
|
||||
# jack_time_t jack_frames_to_time(const jack_client_t *client, jack_nframes_t)
|
||||
# jack_time_t jack_frames_to_time(const jack_client_t *client, jack_nframes_t) ;
|
||||
proc framesToTime*(client: ClientP; nframes: NFrames): Time {.importc: "jack_frames_to_time".}
|
||||
|
||||
# jack_nframes_t jack_time_to_frames(const jack_client_t *client, jack_time_t)
|
||||
# jack_nframes_t jack_time_to_frames(const jack_client_t *client, jack_time_t) ;
|
||||
proc timeToFrames*(client: ClientP; time: Time): NFrames {.importc: "jack_time_to_frames".}
|
||||
|
||||
# jack_time_t jack_get_time(void)
|
||||
# jack_time_t jack_get_time(void) ;
|
||||
proc getTime*(): Time {.importc: "jack_get_time".}
|
||||
|
||||
# ---------------------------- Error handling -----------------------------
|
||||
|
|
Loading…
Reference in New Issue