2 Copyright (C) 2009 Grame
3 Copyright (C) 2011 Devin Anderson
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #include "JackEngineControl.h"
24 #include "JackWinMMEDriver.h"
25 #include "driver_interface.h"
27 using Jack::JackWinMMEDriver
;
29 JackWinMMEDriver::JackWinMMEDriver(const char *name
, const char *alias
,
30 JackLockedEngine
*engine
,
32 JackMidiDriver(name
, alias
, engine
, table
)
39 JackWinMMEDriver::~JackWinMMEDriver()
43 JackWinMMEDriver::Attach()
45 jack_nframes_t buffer_size
= fEngineControl
->fBufferSize
;
47 jack_nframes_t latency
= buffer_size
;
48 jack_latency_range_t latency_range
;
51 latency_range
.max
= latency
+
52 ((jack_nframes_t
) std::ceil((period
/ 1000.0) *
53 fEngineControl
->fSampleRate
));
54 latency_range
.min
= latency
;
56 jack_log("JackWinMMEDriver::Attach - fCaptureChannels %d", fCaptureChannels
);
57 jack_log("JackWinMMEDriver::Attach - fPlaybackChannels %d", fPlaybackChannels
);
60 for (int i
= 0; i
< fCaptureChannels
; i
++) {
61 JackWinMMEInputPort
*input_port
= input_ports
[i
];
62 name
= input_port
->GetName();
63 if (fEngine
->PortRegister(fClientControl
.fRefNum
, name
,
64 JACK_DEFAULT_MIDI_TYPE
,
65 CaptureDriverFlags
, buffer_size
, &index
) < 0) {
66 jack_error("JackWinMMEDriver::Attach - cannot register input port "
67 "with name '%s'.", name
);
68 // X: Do we need to deallocate ports?
71 port
= fGraphManager
->GetPort(index
);
72 port
->SetAlias(input_port
->GetAlias());
73 port
->SetLatencyRange(JackCaptureLatency
, &latency_range
);
74 fEngine
->PortSetDefaultMetadata(fClientControl
.fRefNum
, index
,
75 input_port
->GetDeviceName());
76 fCapturePortList
[i
] = index
;
79 if (! fEngineControl
->fSyncMode
) {
80 latency
+= buffer_size
;
81 latency_range
.max
= latency
;
82 latency_range
.min
= latency
;
86 for (int i
= 0; i
< fPlaybackChannels
; i
++) {
87 JackWinMMEOutputPort
*output_port
= output_ports
[i
];
88 name
= output_port
->GetName();
89 if (fEngine
->PortRegister(fClientControl
.fRefNum
, name
,
90 JACK_DEFAULT_MIDI_TYPE
,
91 PlaybackDriverFlags
, buffer_size
, &index
) < 0) {
92 jack_error("JackWinMMEDriver::Attach - cannot register output "
93 "port with name '%s'.", name
);
94 // X: Do we need to deallocate ports?
97 port
= fGraphManager
->GetPort(index
);
98 port
->SetAlias(output_port
->GetAlias());
99 port
->SetLatencyRange(JackPlaybackLatency
, &latency_range
);
100 fEngine
->PortSetDefaultMetadata(fClientControl
.fRefNum
, index
,
101 output_port
->GetDeviceName());
102 fPlaybackPortList
[i
] = index
;
109 JackWinMMEDriver::Close()
111 // Generic MIDI driver close
112 int result
= JackMidiDriver::Close();
115 for (int i
= 0; i
< fCaptureChannels
; i
++) {
116 delete input_ports
[i
];
118 delete[] input_ports
;
122 for (int i
= 0; i
< fPlaybackChannels
; i
++) {
123 delete output_ports
[i
];
125 delete[] output_ports
;
129 if (timeEndPeriod(period
) != TIMERR_NOERROR
) {
130 jack_error("JackWinMMEDriver::Close - failed to unset timer "
139 JackWinMMEDriver::Open(bool capturing
, bool playing
, int in_channels
,
140 int out_channels
, bool monitor
,
141 const char* capture_driver_name
,
142 const char* playback_driver_name
,
143 jack_nframes_t capture_latency
,
144 jack_nframes_t playback_latency
)
146 const char *client_name
= fClientControl
.fName
;
148 int output_count
= 0;
149 int num_potential_inputs
= midiInGetNumDevs();
150 int num_potential_outputs
= midiOutGetNumDevs();
152 jack_log("JackWinMMEDriver::Open - num_potential_inputs %d", num_potential_inputs
);
153 jack_log("JackWinMMEDriver::Open - num_potential_outputs %d", num_potential_outputs
);
157 if (timeGetDevCaps(&caps
, sizeof(TIMECAPS
)) != TIMERR_NOERROR
) {
158 jack_error("JackWinMMEDriver::Open - could not get timer device "
159 "capabilities. Continuing anyway ...");
161 period
= caps
.wPeriodMin
;
162 if (timeBeginPeriod(period
) != TIMERR_NOERROR
) {
163 jack_error("JackWinMMEDriver::Open - could not set minimum timer "
164 "resolution. Continuing anyway ...");
167 jack_log("JackWinMMEDriver::Open - multimedia timer resolution "
168 "set to %d milliseconds.", period
);
172 if (num_potential_inputs
) {
174 input_ports
= new JackWinMMEInputPort
*[num_potential_inputs
];
175 } catch (std::exception
& e
) {
176 jack_error("JackWinMMEDriver::Open - while creating input port "
177 "array: %s", e
.what());
178 goto unset_timer_resolution
;
180 for (int i
= 0; i
< num_potential_inputs
; i
++) {
182 input_ports
[input_count
] =
183 new JackWinMMEInputPort(fAliasName
, client_name
,
184 capture_driver_name
, i
);
185 } catch (std::exception
& e
) {
186 jack_error("JackWinMMEDriver::Open - while creating input "
187 "port: %s", e
.what());
193 if (num_potential_outputs
) {
195 output_ports
= new JackWinMMEOutputPort
*[num_potential_outputs
];
196 } catch (std::exception
& e
) {
197 jack_error("JackWinMMEDriver::Open - while creating output port "
198 "array: %s", e
.what());
199 goto destroy_input_ports
;
201 for (int i
= 0; i
< num_potential_outputs
; i
++) {
203 output_ports
[output_count
] =
204 new JackWinMMEOutputPort(fAliasName
, client_name
,
205 playback_driver_name
, i
);
206 } catch (std::exception
& e
) {
207 jack_error("JackWinMMEDriver::Open - while creating output port: %s | %s, %s, %s",
208 e
.what(), fAliasName
, client_name
, playback_driver_name
);
215 jack_log("JackWinMMEDriver::Open - input_count %d", input_count
);
216 jack_log("JackWinMMEDriver::Open - output_count %d", output_count
);
218 if (! JackMidiDriver::Open(capturing
, playing
, input_count
,
219 output_count
, monitor
,
221 playback_driver_name
, capture_latency
,
227 for (int i
= 0; i
< output_count
; i
++) {
228 delete output_ports
[i
];
230 delete[] output_ports
;
235 for (int i
= 0; i
< input_count
; i
++) {
236 delete input_ports
[i
];
238 delete[] input_ports
;
241 unset_timer_resolution
:
243 if (timeEndPeriod(period
) != TIMERR_NOERROR
) {
244 jack_error("JackWinMMEDriver::Open - failed to unset timer "
252 JackWinMMEDriver::Read()
254 jack_nframes_t buffer_size
= fEngineControl
->fBufferSize
;
255 for (int i
= 0; i
< fCaptureChannels
; i
++) {
256 input_ports
[i
]->ProcessJack(GetInputBuffer(i
), buffer_size
);
263 JackWinMMEDriver::Write()
265 jack_nframes_t buffer_size
= fEngineControl
->fBufferSize
;
266 for (int i
= 0; i
< fPlaybackChannels
; i
++) {
267 output_ports
[i
]->ProcessJack(GetOutputBuffer(i
), buffer_size
);
274 JackWinMMEDriver::Start()
276 jack_log("JackWinMMEDriver::Start - Starting driver.");
278 JackMidiDriver::Start();
281 int output_count
= 0;
283 jack_log("JackWinMMEDriver::Start - Enabling input ports.");
285 for (; input_count
< fCaptureChannels
; input_count
++) {
286 if (! input_ports
[input_count
]->Start()) {
287 jack_error("JackWinMMEDriver::Start - Failed to enable input "
289 goto stop_input_ports
;
293 jack_log("JackWinMMEDriver::Start - Enabling output ports.");
295 for (; output_count
< fPlaybackChannels
; output_count
++) {
296 if (! output_ports
[output_count
]->Start()) {
297 jack_error("JackWinMMEDriver::Start - Failed to enable output "
299 goto stop_output_ports
;
303 jack_log("JackWinMMEDriver::Start - Driver started.");
307 for (int i
= 0; i
< output_count
; i
++) {
308 if (! output_ports
[i
]->Stop()) {
309 jack_error("JackWinMMEDriver::Start - Failed to disable output "
314 for (int i
= 0; i
< input_count
; i
++) {
315 if (! input_ports
[i
]->Stop()) {
316 jack_error("JackWinMMEDriver::Start - Failed to disable input "
325 JackWinMMEDriver::Stop()
329 JackMidiDriver::Stop();
331 jack_log("JackWinMMEDriver::Stop - disabling input ports.");
333 for (int i
= 0; i
< fCaptureChannels
; i
++) {
334 if (! input_ports
[i
]->Stop()) {
335 jack_error("JackWinMMEDriver::Stop - Failed to disable input "
341 jack_log("JackWinMMEDriver::Stop - disabling output ports.");
343 for (int i
= 0; i
< fPlaybackChannels
; i
++) {
344 if (! output_ports
[i
]->Stop()) {
345 jack_error("JackWinMMEDriver::Stop - Failed to disable output "
359 // singleton kind of driver
360 static Jack::JackWinMMEDriver
* driver
= NULL
;
362 SERVER_EXPORT jack_driver_desc_t
* driver_get_descriptor()
364 return jack_driver_descriptor_construct("winmme", JackDriverSlave
, "WinMME API based MIDI backend", NULL
);
367 SERVER_EXPORT
Jack::JackDriverClientInterface
* driver_initialize(Jack::JackLockedEngine
* engine
, Jack::JackSynchro
* table
, const JSList
* params
)
370 unsigned int capture_ports = 2;
371 unsigned int playback_ports = 2;
372 unsigned long wait_time = 0;
374 const jack_driver_param_t * param;
375 bool monitor = false;
377 for (node = params; node; node = jack_slist_next (node)) {
378 param = (const jack_driver_param_t *) node->data;
380 switch (param->character) {
383 capture_ports = param->value.ui;
387 playback_ports = param->value.ui;
391 sample_rate = param->value.ui;
395 period_size = param->value.ui;
399 wait_time = param->value.ui;
403 monitor = param->value.i;
409 // singleton kind of driver
411 driver
= new Jack::JackWinMMEDriver("system_midi", "winmme", engine
, table
);
412 if (driver
->Open(1, 1, 0, 0, false, "in", "out", 0, 0) == 0) {
419 jack_info("JackWinMMEDriver already allocated, cannot be loaded twice");