author | ohair |
Tue, 11 Sep 2012 13:40:59 -0700 | |
changeset 13678 | 5c8001201f98 |
parent 5506 | 202f599c92aa |
child 23010 | 6dadb192ad81 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
5506 | 2 |
* Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. |
2 | 3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 |
* |
|
5 |
* This code is free software; you can redistribute it and/or modify it |
|
6 |
* under the terms of the GNU General Public License version 2 only, as |
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5506 | 7 |
* published by the Free Software Foundation. Oracle designates this |
2 | 8 |
* particular file as subject to the "Classpath" exception as provided |
5506 | 9 |
* by Oracle in the LICENSE file that accompanied this code. |
2 | 10 |
* |
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
13 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that |
|
15 |
* accompanied this code). |
|
16 |
* |
|
17 |
* You should have received a copy of the GNU General Public License version |
|
18 |
* 2 along with this work; if not, write to the Free Software Foundation, |
|
19 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
20 |
* |
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5506 | 21 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
22 |
* or visit www.oracle.com if you need additional information or have any |
|
23 |
* questions. |
|
2 | 24 |
*/ |
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26 |
#define USE_ERROR |
|
27 |
#define USE_TRACE |
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28 |
||
29 |
/* include Java Sound specific headers as C code */ |
|
30 |
extern "C" { |
|
31 |
#include "PLATFORM_API_WinOS_Util.h" |
|
32 |
} |
|
33 |
||
34 |
#if USE_PLATFORM_MIDI_IN == TRUE |
|
35 |
||
36 |
#ifdef USE_ERROR |
|
37 |
#include <stdio.h> |
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/* Use THIS_FILE when it is available. */ |
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#ifndef THIS_FILE |
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#define THIS_FILE __FILE__ |
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#endif |
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2 | 44 |
#define MIDIIN_CHECK_ERROR { \ |
45 |
if (err != MMSYSERR_NOERROR) \ |
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46 |
ERROR3("MIDI IN Error in %s:%d : %s\n", THIS_FILE, __LINE__, MIDI_IN_GetErrorStr((INT32) err)); \ |
2 | 47 |
} |
48 |
#else |
|
49 |
#define MIDIIN_CHECK_ERROR |
|
50 |
#endif |
|
51 |
||
52 |
/* |
|
53 |
* Callback from the MIDI device for all messages. |
|
54 |
*/ |
|
55 |
//$$fb dwParam1 holds a pointer for long messages. How can that be a DWORD then ??? |
|
56 |
void CALLBACK MIDI_IN_PutMessage( HMIDIIN hMidiIn, UINT wMsg, UINT_PTR dwInstance, UINT_PTR dwParam1, UINT_PTR dwParam2 ) { |
|
57 |
||
58 |
MidiDeviceHandle* handle = (MidiDeviceHandle*) dwInstance; |
|
59 |
||
60 |
TRACE3("> MIDI_IN_PutMessage, hMidiIn: %x, wMsg: %x, dwInstance: %x\n", hMidiIn, wMsg, dwInstance); |
|
61 |
TRACE2(" dwParam1: %x, dwParam2: %x\n", dwParam1, dwParam2); |
|
62 |
||
63 |
switch(wMsg) { |
|
64 |
||
65 |
case MIM_OPEN: |
|
66 |
TRACE0("< MIDI_IN_PutMessage: MIM_OPEN\n"); |
|
67 |
break; |
|
68 |
||
69 |
case MIM_CLOSE: |
|
70 |
TRACE0("< MIDI_IN_PutMessage: MIM_CLOSE\n"); |
|
71 |
break; |
|
72 |
||
73 |
case MIM_MOREDATA: |
|
74 |
case MIM_DATA: |
|
75 |
TRACE3(" MIDI_IN_PutMessage: MIM_MOREDATA or MIM_DATA. status=%x data1=%x data2=%x\n", |
|
76 |
dwParam1 & 0xFF, (dwParam1 & 0xFF00)>>8, (dwParam1 & 0xFF0000)>>16); |
|
77 |
if (handle!=NULL && handle->queue!=NULL && handle->platformData) { |
|
78 |
MIDI_QueueAddShort(handle->queue, |
|
79 |
// queue stores packedMsg in big endian |
|
80 |
//(dwParam1 << 24) | ((dwParam1 << 8) & 0xFF0000) | ((dwParam1 >> 8) & 0xFF00), |
|
81 |
(UINT32) dwParam1, |
|
82 |
// queue uses microseconds |
|
83 |
((INT64) dwParam2)*1000, |
|
84 |
// overwrite if queue is full |
|
85 |
TRUE); |
|
86 |
SetEvent((HANDLE) handle->platformData); |
|
87 |
} |
|
88 |
TRACE0("< MIDI_IN_PutMessage\n"); |
|
89 |
break; |
|
90 |
||
91 |
case MIM_LONGDATA: |
|
92 |
TRACE1(" MIDI_IN_PutMessage: MIM_LONGDATA (%d bytes recorded)\n", (int) (((MIDIHDR*) dwParam1)->dwBytesRecorded)); |
|
93 |
if (handle!=NULL && handle->queue!=NULL && handle->platformData) { |
|
94 |
MIDIHDR* hdr = (MIDIHDR*) dwParam1; |
|
95 |
TRACE2(" MIDI_IN_PutMessage: Adding to queue: index %d, %d bytes\n", (INT32) hdr->dwUser, hdr->dwBytesRecorded); |
|
96 |
MIDI_QueueAddLong(handle->queue, |
|
97 |
(UBYTE*) hdr->lpData, |
|
98 |
(UINT32) hdr->dwBytesRecorded, |
|
99 |
// sysex buffer index |
|
100 |
(INT32) hdr->dwUser, |
|
101 |
// queue uses microseconds |
|
102 |
((INT64) dwParam2)*1000, |
|
103 |
// overwrite if queue is full |
|
104 |
TRUE); |
|
105 |
SetEvent((HANDLE) handle->platformData); |
|
106 |
} |
|
107 |
TRACE0("< MIDI_IN_PutMessage\n"); |
|
108 |
break; |
|
109 |
||
110 |
case MIM_ERROR: |
|
111 |
ERROR0("< MIDI_IN_PutMessage: MIM_ERROR!\n"); |
|
112 |
break; |
|
113 |
||
114 |
case MIM_LONGERROR: |
|
115 |
if (dwParam1 != 0) { |
|
116 |
MIDIHDR* hdr = (MIDIHDR*) dwParam1; |
|
117 |
#ifdef USE_TRACE |
|
118 |
if (hdr->dwBytesRecorded > 0) { |
|
119 |
TRACE2(" MIDI_IN_PutMessage: MIM_LONGERROR! recorded: %d bytes with status 0x%2x\n", |
|
120 |
hdr->dwBytesRecorded, (int) (*((UBYTE*) hdr->lpData))); |
|
121 |
} |
|
122 |
#endif |
|
123 |
// re-add hdr to device query |
|
124 |
hdr->dwBytesRecorded = 0; |
|
125 |
midiInAddBuffer((HMIDIIN)handle->deviceHandle, hdr, sizeof(MIDIHDR)); |
|
126 |
} |
|
127 |
ERROR0("< MIDI_IN_PutMessage: MIM_LONGERROR!\n"); |
|
128 |
break; |
|
129 |
||
130 |
default: |
|
131 |
ERROR1("< MIDI_IN_PutMessage: ERROR unknown message %d!\n", wMsg); |
|
132 |
break; |
|
133 |
||
134 |
} // switch (wMsg) |
|
135 |
} |
|
136 |
||
137 |
||
138 |
/* |
|
139 |
** data/routines for opening MIDI input (MidiIn) device by separate thread |
|
140 |
** (joint into MidiIn_OpenHelper class) |
|
141 |
** see 6415669 - MidiIn device stops work and crushes JVM after exiting |
|
142 |
** from thread that has open the device (it looks like WinMM bug). |
|
143 |
*/ |
|
144 |
class MidiIn_OpenHelper { |
|
145 |
public: |
|
146 |
/* opens MidiIn device */ |
|
147 |
static MMRESULT midiInOpen(INT32 deviceID, MidiDeviceHandle* handle); |
|
148 |
/* checks for initialization success */ |
|
149 |
static inline BOOL isInitialized() { return data.threadHandle != NULL; } |
|
150 |
protected: |
|
151 |
MidiIn_OpenHelper() {} // no need to create an instance |
|
152 |
||
153 |
/* data class */ |
|
154 |
class Data { |
|
155 |
public: |
|
156 |
Data(); |
|
157 |
~Data(); |
|
158 |
// public data to access from parent class |
|
159 |
CRITICAL_SECTION crit_sect; |
|
160 |
volatile HANDLE threadHandle; |
|
161 |
volatile HANDLE doEvent; // event to resume thread |
|
162 |
volatile HANDLE doneEvent; // processing has been completed |
|
163 |
volatile MMRESULT err; // processing result |
|
164 |
// data to process; (handle == null) is command to thread terminating |
|
165 |
volatile INT32 deviceID; |
|
166 |
volatile MidiDeviceHandle* handle; |
|
167 |
} static data; |
|
168 |
||
169 |
/* StartThread function */ |
|
170 |
static DWORD WINAPI __stdcall ThreadProc(void *param); |
|
171 |
}; |
|
172 |
||
173 |
/* MidiIn_OpenHelper class implementation |
|
174 |
*/ |
|
175 |
MidiIn_OpenHelper::Data MidiIn_OpenHelper::data; |
|
176 |
||
177 |
MidiIn_OpenHelper::Data::Data() { |
|
178 |
threadHandle = NULL; |
|
179 |
::InitializeCriticalSection(&crit_sect); |
|
180 |
doEvent = ::CreateEvent(NULL, FALSE, FALSE, NULL); |
|
181 |
doneEvent = ::CreateEvent(NULL, FALSE, FALSE, NULL); |
|
182 |
if (doEvent != NULL && doneEvent != NULL) |
|
183 |
threadHandle = ::CreateThread(NULL, 0, ThreadProc, NULL, 0, NULL); |
|
184 |
} |
|
185 |
||
186 |
MidiIn_OpenHelper::Data::~Data() { |
|
187 |
::EnterCriticalSection(&crit_sect); |
|
188 |
if (threadHandle != NULL) { |
|
189 |
// terminate thread |
|
190 |
handle = NULL; |
|
191 |
::SetEvent(doEvent); |
|
192 |
::CloseHandle(threadHandle); |
|
193 |
threadHandle = NULL; |
|
194 |
} |
|
195 |
::LeaveCriticalSection(&crit_sect); |
|
196 |
// won't delete doEvent/doneEvent/crit_sect |
|
197 |
// - Windows will do during process shutdown |
|
198 |
} |
|
199 |
||
200 |
DWORD WINAPI __stdcall MidiIn_OpenHelper::ThreadProc(void *param) { |
|
201 |
while (1) { |
|
202 |
// wait for something to do |
|
203 |
::WaitForSingleObject(data.doEvent, INFINITE); |
|
204 |
if (data.handle == NULL) { |
|
205 |
// (data.handle == NULL) is a signal to terminate thread |
|
206 |
break; |
|
207 |
} |
|
208 |
||
209 |
data.err = ::midiInOpen((HMIDIIN*)&(data.handle->deviceHandle), |
|
210 |
data.deviceID, (UINT_PTR)&(MIDI_IN_PutMessage), |
|
211 |
(UINT_PTR)data.handle, |
|
212 |
CALLBACK_FUNCTION|MIDI_IO_STATUS); |
|
213 |
||
214 |
::SetEvent(data.doneEvent); |
|
215 |
} |
|
216 |
return 0; |
|
217 |
} |
|
218 |
||
219 |
MMRESULT MidiIn_OpenHelper::midiInOpen(INT32 deviceID, MidiDeviceHandle* handle) { |
|
220 |
MMRESULT err; |
|
221 |
::EnterCriticalSection(&data.crit_sect); |
|
222 |
if (!isInitialized()) { |
|
223 |
::LeaveCriticalSection(&data.crit_sect); |
|
224 |
return MMSYSERR_ERROR; |
|
225 |
} |
|
226 |
data.deviceID = deviceID; |
|
227 |
data.handle = handle; |
|
228 |
::SetEvent(data.doEvent); |
|
229 |
::WaitForSingleObject(data.doneEvent, INFINITE); |
|
230 |
err = data.err; |
|
231 |
::LeaveCriticalSection(&data.crit_sect); |
|
232 |
return err; |
|
233 |
} |
|
234 |
||
235 |
||
236 |
// PLATFORM_MIDI_IN method implementations |
|
237 |
||
238 |
/* not thread safe */ |
|
239 |
static char winMidiInErrMsg[WIN_MAX_ERROR_LEN]; |
|
240 |
||
241 |
char* MIDI_IN_GetErrorStr(INT32 err) { |
|
242 |
winMidiInErrMsg[0] = 0; |
|
243 |
midiInGetErrorText((MMRESULT) err, winMidiInErrMsg, WIN_MAX_ERROR_LEN); |
|
244 |
return winMidiInErrMsg; |
|
245 |
} |
|
246 |
||
247 |
INT32 MIDI_IN_GetNumDevices() { |
|
248 |
return (INT32) midiInGetNumDevs(); |
|
249 |
} |
|
250 |
||
251 |
INT32 getMidiInCaps(INT32 deviceID, MIDIINCAPS* caps, INT32* err) { |
|
252 |
(*err) = midiInGetDevCaps(deviceID, caps, sizeof(MIDIINCAPS)); |
|
253 |
return ((*err) == MMSYSERR_NOERROR); |
|
254 |
} |
|
255 |
||
256 |
INT32 MIDI_IN_GetDeviceName(INT32 deviceID, char *name, UINT32 nameLength) { |
|
257 |
MIDIINCAPS midiInCaps; |
|
258 |
INT32 err; |
|
259 |
||
260 |
if (getMidiInCaps(deviceID, &midiInCaps, &err)) { |
|
261 |
strncpy(name, midiInCaps.szPname, nameLength-1); |
|
262 |
name[nameLength-1] = 0; |
|
263 |
return MIDI_SUCCESS; |
|
264 |
} |
|
265 |
MIDIIN_CHECK_ERROR; |
|
266 |
return err; |
|
267 |
} |
|
268 |
||
269 |
||
270 |
INT32 MIDI_IN_GetDeviceVendor(INT32 deviceID, char *name, UINT32 nameLength) { |
|
271 |
return MIDI_NOT_SUPPORTED; |
|
272 |
} |
|
273 |
||
274 |
||
275 |
INT32 MIDI_IN_GetDeviceDescription(INT32 deviceID, char *name, UINT32 nameLength) { |
|
276 |
return MIDI_NOT_SUPPORTED; |
|
277 |
} |
|
278 |
||
279 |
||
280 |
||
281 |
INT32 MIDI_IN_GetDeviceVersion(INT32 deviceID, char *name, UINT32 nameLength) { |
|
282 |
MIDIINCAPS midiInCaps; |
|
283 |
INT32 err = MIDI_NOT_SUPPORTED; |
|
284 |
||
285 |
if (getMidiInCaps(deviceID, &midiInCaps, &err) && (nameLength>7)) { |
|
286 |
sprintf(name, "%d.%d", (midiInCaps.vDriverVersion & 0xFF00) >> 8, midiInCaps.vDriverVersion & 0xFF); |
|
287 |
return MIDI_SUCCESS; |
|
288 |
} |
|
289 |
MIDIIN_CHECK_ERROR; |
|
290 |
return err; |
|
291 |
} |
|
292 |
||
293 |
||
294 |
INT32 prepareBuffers(MidiDeviceHandle* handle) { |
|
295 |
SysExQueue* sysex; |
|
296 |
MMRESULT err = MMSYSERR_NOERROR; |
|
297 |
int i; |
|
298 |
||
299 |
if (!handle || !handle->longBuffers || !handle->deviceHandle) { |
|
300 |
ERROR0("MIDI_IN_prepareBuffers: handle, or longBuffers, or deviceHandle==NULL\n"); |
|
301 |
return MIDI_INVALID_HANDLE; |
|
302 |
} |
|
303 |
sysex = (SysExQueue*) handle->longBuffers; |
|
304 |
for (i = 0; i<sysex->count; i++) { |
|
305 |
MIDIHDR* hdr = &(sysex->header[i]); |
|
306 |
midiInPrepareHeader((HMIDIIN) handle->deviceHandle, hdr, sizeof(MIDIHDR)); |
|
307 |
err = midiInAddBuffer((HMIDIIN) handle->deviceHandle, hdr, sizeof(MIDIHDR)); |
|
308 |
} |
|
309 |
MIDIIN_CHECK_ERROR; |
|
310 |
return (INT32) err; |
|
311 |
} |
|
312 |
||
313 |
INT32 unprepareBuffers(MidiDeviceHandle* handle) { |
|
314 |
SysExQueue* sysex; |
|
315 |
MMRESULT err = MMSYSERR_NOERROR; |
|
316 |
int i; |
|
317 |
||
318 |
if (!handle || !handle->longBuffers || !handle->deviceHandle) { |
|
319 |
ERROR0("MIDI_IN_unprepareBuffers: handle, or longBuffers, or deviceHandle==NULL\n"); |
|
320 |
return MIDI_INVALID_HANDLE; |
|
321 |
} |
|
322 |
sysex = (SysExQueue*) handle->longBuffers; |
|
323 |
for (i = 0; i<sysex->count; i++) { |
|
324 |
err = midiInUnprepareHeader((HMIDIIN) handle->deviceHandle, &(sysex->header[i]), sizeof(MIDIHDR)); |
|
325 |
} |
|
326 |
MIDIIN_CHECK_ERROR; |
|
327 |
return (INT32) err; |
|
328 |
} |
|
329 |
||
330 |
INT32 MIDI_IN_OpenDevice(INT32 deviceID, MidiDeviceHandle** handle) { |
|
331 |
MMRESULT err; |
|
332 |
||
333 |
TRACE0("> MIDI_IN_OpenDevice\n"); |
|
334 |
#ifdef USE_ERROR |
|
335 |
setvbuf(stdout, NULL, (int)_IONBF, 0); |
|
336 |
setvbuf(stderr, NULL, (int)_IONBF, 0); |
|
337 |
#endif |
|
338 |
||
339 |
(*handle) = (MidiDeviceHandle*) malloc(sizeof(MidiDeviceHandle)); |
|
340 |
if (!(*handle)) { |
|
341 |
ERROR0("< ERROR: MIDI_IN_OpenDevice: out of memory\n"); |
|
342 |
return MIDI_OUT_OF_MEMORY; |
|
343 |
} |
|
344 |
memset(*handle, 0, sizeof(MidiDeviceHandle)); |
|
345 |
||
346 |
// create queue |
|
347 |
(*handle)->queue = MIDI_CreateQueue(MIDI_IN_MESSAGE_QUEUE_SIZE); |
|
348 |
if (!(*handle)->queue) { |
|
349 |
ERROR0("< ERROR: MIDI_IN_OpenDevice: could not create queue\n"); |
|
350 |
free(*handle); |
|
351 |
(*handle) = NULL; |
|
352 |
return MIDI_OUT_OF_MEMORY; |
|
353 |
} |
|
354 |
||
355 |
// create long buffer queue |
|
356 |
if (!MIDI_WinCreateLongBufferQueue(*handle, MIDI_IN_LONG_QUEUE_SIZE, MIDI_IN_LONG_MESSAGE_SIZE, NULL)) { |
|
357 |
ERROR0("< ERROR: MIDI_IN_OpenDevice: could not create long Buffers\n"); |
|
358 |
MIDI_DestroyQueue((*handle)->queue); |
|
359 |
free(*handle); |
|
360 |
(*handle) = NULL; |
|
361 |
return MIDI_OUT_OF_MEMORY; |
|
362 |
} |
|
363 |
||
364 |
// finally open the device |
|
365 |
err = MidiIn_OpenHelper::midiInOpen(deviceID, *handle); |
|
366 |
||
367 |
if ((err != MMSYSERR_NOERROR) || (!(*handle)->deviceHandle)) { |
|
368 |
MIDIIN_CHECK_ERROR; |
|
369 |
MIDI_WinDestroyLongBufferQueue(*handle); |
|
370 |
MIDI_DestroyQueue((*handle)->queue); |
|
371 |
free(*handle); |
|
372 |
(*handle) = NULL; |
|
373 |
return (INT32) err; |
|
374 |
} |
|
375 |
||
376 |
prepareBuffers(*handle); |
|
377 |
MIDI_SetStartTime(*handle); |
|
378 |
TRACE0("< MIDI_IN_OpenDevice: midiInOpen succeeded\n"); |
|
379 |
return MIDI_SUCCESS; |
|
380 |
} |
|
381 |
||
382 |
||
383 |
INT32 MIDI_IN_CloseDevice(MidiDeviceHandle* handle) { |
|
384 |
MMRESULT err; |
|
385 |
||
386 |
TRACE0("> MIDI_IN_CloseDevice: midiInClose\n"); |
|
387 |
if (!handle) { |
|
388 |
ERROR0("ERROR: MIDI_IN_CloseDevice: handle is NULL\n"); |
|
389 |
return MIDI_INVALID_HANDLE; |
|
390 |
} |
|
391 |
midiInReset((HMIDIIN) handle->deviceHandle); |
|
392 |
unprepareBuffers(handle); |
|
393 |
err = midiInClose((HMIDIIN) handle->deviceHandle); |
|
394 |
handle->deviceHandle=NULL; |
|
395 |
MIDIIN_CHECK_ERROR; |
|
396 |
MIDI_WinDestroyLongBufferQueue(handle); |
|
397 |
||
398 |
if (handle->queue!=NULL) { |
|
399 |
MidiMessageQueue* queue = handle->queue; |
|
400 |
handle->queue = NULL; |
|
401 |
MIDI_DestroyQueue(queue); |
|
402 |
} |
|
403 |
free(handle); |
|
404 |
||
405 |
TRACE0("< MIDI_IN_CloseDevice: midiInClose succeeded\n"); |
|
406 |
return (INT32) err; |
|
407 |
} |
|
408 |
||
409 |
||
410 |
INT32 MIDI_IN_StartDevice(MidiDeviceHandle* handle) { |
|
411 |
MMRESULT err; |
|
412 |
||
413 |
if (!handle || !handle->deviceHandle || !handle->queue) { |
|
414 |
ERROR0("ERROR: MIDI_IN_StartDevice: handle or queue is NULL\n"); |
|
415 |
return MIDI_INVALID_HANDLE; |
|
416 |
} |
|
417 |
||
418 |
// clear all the events from the queue |
|
419 |
MIDI_QueueClear(handle->queue); |
|
420 |
||
421 |
handle->platformData = (void*) CreateEvent(NULL, FALSE /*manual reset*/, FALSE /*signaled*/, NULL); |
|
422 |
if (!handle->platformData) { |
|
423 |
ERROR0("ERROR: MIDI_IN_StartDevice: could not create event\n"); |
|
424 |
return MIDI_OUT_OF_MEMORY; |
|
425 |
} |
|
426 |
||
427 |
err = midiInStart((HMIDIIN) handle->deviceHandle); |
|
428 |
/* $$mp 200308-11: This method is already called in ...open(). It is |
|
429 |
unclear why is is called again. The specification says that |
|
430 |
MidiDevice.getMicrosecondPosition() returns the time since the |
|
431 |
device was opened (the spec doesn't know about start/stop). |
|
432 |
So I guess this call is obsolete. */ |
|
433 |
MIDI_SetStartTime(handle); |
|
434 |
||
435 |
MIDIIN_CHECK_ERROR; |
|
436 |
TRACE0("MIDI_IN_StartDevice: midiInStart finished\n"); |
|
437 |
return (INT32) err; |
|
438 |
} |
|
439 |
||
440 |
||
441 |
INT32 MIDI_IN_StopDevice(MidiDeviceHandle* handle) { |
|
442 |
MMRESULT err; |
|
443 |
HANDLE event; |
|
444 |
||
445 |
TRACE0("> MIDI_IN_StopDevice: midiInStop \n"); |
|
446 |
if (!handle || !handle->platformData) { |
|
447 |
ERROR0("ERROR: MIDI_IN_StopDevice: handle or event is NULL\n"); |
|
448 |
return MIDI_INVALID_HANDLE; |
|
449 |
} |
|
450 |
// encourage MIDI_IN_GetMessage to return soon |
|
451 |
event = handle->platformData; |
|
452 |
handle->platformData = NULL; |
|
453 |
SetEvent(event); |
|
454 |
||
455 |
err = midiInStop((HMIDIIN) handle->deviceHandle); |
|
456 |
||
457 |
// wait until the Java thread has exited |
|
458 |
while (handle->isWaiting) Sleep(0); |
|
459 |
CloseHandle(event); |
|
460 |
||
461 |
MIDIIN_CHECK_ERROR; |
|
462 |
TRACE0("< MIDI_IN_StopDevice: midiInStop finished\n"); |
|
463 |
return (INT32) err; |
|
464 |
} |
|
465 |
||
466 |
||
467 |
/* return time stamp in microseconds */ |
|
468 |
INT64 MIDI_IN_GetTimeStamp(MidiDeviceHandle* handle) { |
|
469 |
return MIDI_GetTimeStamp(handle); |
|
470 |
} |
|
471 |
||
472 |
||
473 |
// read the next message from the queue |
|
474 |
MidiMessage* MIDI_IN_GetMessage(MidiDeviceHandle* handle) { |
|
475 |
if (handle == NULL) { |
|
476 |
return NULL; |
|
477 |
} |
|
478 |
while (handle->queue!=NULL && handle->platformData!=NULL) { |
|
479 |
MidiMessage* msg = MIDI_QueueRead(handle->queue); |
|
480 |
DWORD res; |
|
481 |
if (msg != NULL) { |
|
482 |
//fprintf(stdout, "GetMessage returns index %d\n", msg->data.l.index); fflush(stdout); |
|
483 |
return msg; |
|
484 |
} |
|
485 |
TRACE0("MIDI_IN_GetMessage: before waiting\n"); |
|
486 |
handle->isWaiting = TRUE; |
|
487 |
res = WaitForSingleObject((HANDLE) handle->platformData, 2000); |
|
488 |
handle->isWaiting = FALSE; |
|
489 |
if (res == WAIT_TIMEOUT) { |
|
490 |
// break out back to Java from time to time - just to be sure |
|
491 |
TRACE0("MIDI_IN_GetMessage: waiting finished with timeout\n"); |
|
492 |
break; |
|
493 |
} |
|
494 |
TRACE0("MIDI_IN_GetMessage: waiting finished\n"); |
|
495 |
} |
|
496 |
return NULL; |
|
497 |
} |
|
498 |
||
499 |
void MIDI_IN_ReleaseMessage(MidiDeviceHandle* handle, MidiMessage* msg) { |
|
500 |
SysExQueue* sysex; |
|
501 |
if (handle == NULL || handle->queue == NULL) { |
|
502 |
return; |
|
503 |
} |
|
504 |
sysex = (SysExQueue*) handle->longBuffers; |
|
505 |
if (msg->type == LONG_MESSAGE && sysex) { |
|
506 |
MIDIHDR* hdr = &(sysex->header[msg->data.l.index]); |
|
507 |
//fprintf(stdout, "ReleaseMessage index %d\n", msg->data.l.index); fflush(stdout); |
|
508 |
hdr->dwBytesRecorded = 0; |
|
509 |
midiInAddBuffer((HMIDIIN) handle->deviceHandle, hdr, sizeof(MIDIHDR)); |
|
510 |
} |
|
511 |
MIDI_QueueRemove(handle->queue, TRUE /*onlyLocked*/); |
|
512 |
} |
|
513 |
||
514 |
#endif // USE_PLATFORM_MIDI_IN |