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source: trunk/src/winmm/dwaveout.cpp@ 3009

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Last change on this file since 3009 was 3009, checked in by sandervl, 25 years ago
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File size: 23.3 KB

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1	/* $Id: dwaveout.cpp,v 1.18 2000-03-04 19:55:06 sandervl Exp $ */
2
3	/*
4	* Wave playback class
5	*
6	* Copyright 1998 Sander van Leeuwen (sandervl@xs4all.nl)
7	*
8	*
9	* Project Odin Software License can be found in LICENSE.TXT
10	*
11	*/
12
13
14	/****************************************************************************
15	* Includes *
16	****************************************************************************/
17
18
19
20	#define INCL_BASE
21	#define INCL_OS2MM
22	#include <os2wrap.h> //Odin32 OS/2 api wrappers
23	#include <os2mewrap.h> //Odin32 OS/2 MMPM/2 api wrappers
24	#include <stdlib.h>
25	#include <string.h>
26	#define OS2_ONLY
27	#include <win32api.h>
28	#include <wprocess.h>
29
30	#include "misc.h"
31	#include "dwaveout.h"
32
33	#define DBG_LOCALLOG DBG_dwaveout
34	#include "dbglocal.h"
35
36	#ifndef min
37	#define min(a, b) ((a > b) ? b : a)
38	#endif
39
40	#ifndef max
41	#define max(a, b) ((a > b) ? a : b)
42	#endif
43
44	LONG APIENTRY WaveOutHandler(ULONG ulStatus, PMCI_MIX_BUFFER pBuffer, ULONG ulFlags);
45
46	//TODO: mulaw, alaw & adpcm
47	/******************************************************************************/
48	/******************************************************************************/
49	DartWaveOut::DartWaveOut(LPWAVEFORMATEX pwfx)
50	{
51	Init(pwfx);
52	}
53	/******************************************************************************/
54	/******************************************************************************/
55	DartWaveOut::DartWaveOut(LPWAVEFORMATEX pwfx, ULONG nCallback, ULONG dwInstance, USHORT usSel)
56	{
57	Init(pwfx);
58
59	mthdCallback = (LPDRVCALLBACK)nCallback; // callback function
60	selCallback = usSel; // callback win32 tib selector
61	this->dwInstance = dwInstance;
62
63	if(!ulError)
64	callback((ULONG)this, WOM_OPEN, dwInstance, 0, 0);
65	}
66	/******************************************************************************/
67	/******************************************************************************/
68	DartWaveOut::DartWaveOut(LPWAVEFORMATEX pwfx, HWND hwndCallback)
69	{
70	Init(pwfx);
71
72	this->hwndCallback = hwndCallback;
73
74	if(!ulError)
75	PostMessageA(hwndCallback, WOM_OPEN, 0, 0);
76	}
77	/******************************************************************************/
78	/******************************************************************************/
79	void DartWaveOut::callback(HDRVR h, UINT uMessage, DWORD dwUser, DWORD dw1, DWORD dw2)
80	{
81	USHORT selTIB = GetFS(); // save current FS selector
82
83	dprintf(("WINMM:DartWaveOut::callback(HDRVR h=%08xh, UINT uMessage=%08xh, DWORD dwUser=%08xh, DWORD dw1=%08xh, DWORD dw2=%08xh)\n",
84	h,
85	uMessage,
86	dwUser,
87	dw1,
88	dw2));
89
90	if (selCallback != 0)
91	SetFS(selCallback); // switch to callback win32 tib selector (stored in waveOutOpen)
92	else
93	dprintf(("WINMM:DartWaveOut::callback - selCallback is invalid"));
94
95	//@@@PH 1999/12/28 Shockwave Flashes seem to make assumptions on a
96	// specific stack layout. Do we have the correct calling convention here?
97	mthdCallback(h,uMessage,dwUser,dw1,dw2);
98	SetFS(selTIB); // switch back to the saved FS selector
99	}
100	/******************************************************************************/
101	/******************************************************************************/
102	void DartWaveOut::Init(LPWAVEFORMATEX pwfx)
103	{
104	MCI_GENERIC_PARMS GenericParms;
105	MCI_AMP_OPEN_PARMS AmpOpenParms;
106	APIRET rc;
107
108	curPlayBuf = curFillBuf = curFillPos = curPlayPos = 0;
109
110	fMixerSetup = FALSE;
111	next = NULL;
112	wavehdr = NULL;
113	curhdr = NULL;
114	mthdCallback = NULL;
115	hwndCallback = 0;
116	selCallback = 0;
117	dwInstance = 0;
118	ulError = 0;
119	selCallback = 0;
120	volume = 0xFFFFFFFF;
121	State = STATE_STOPPED;
122
123	MixBuffer = (MCI_MIX_BUFFER )malloc(PREFILLBUF_DARTsizeof(MCI_MIX_BUFFER));
124	MixSetupParms = (MCI_MIXSETUP_PARMS *)malloc(sizeof(MCI_MIXSETUP_PARMS));
125	BufferParms = (MCI_BUFFER_PARMS *)malloc(sizeof(MCI_BUFFER_PARMS));
126
127	BitsPerSample = pwfx->wBitsPerSample;
128	SampleRate = pwfx->nSamplesPerSec;
129	this->nChannels = pwfx->nChannels;
130	ulBufSize = DART_BUFSIZE;
131
132	dprintf(("waveOutOpen: samplerate %d, numChan %d bps %d (%d), format %x", SampleRate, nChannels, BitsPerSample, pwfx->nBlockAlign, pwfx->wFormatTag));
133	// Setup the open structure, pass the playlist and tell MCI_OPEN to use it
134	memset(&AmpOpenParms,0,sizeof(AmpOpenParms));
135
136	AmpOpenParms.usDeviceID = ( USHORT ) 0;
137	AmpOpenParms.pszDeviceType = ( PSZ ) MCI_DEVTYPE_AUDIO_AMPMIX;
138
139	rc = mciSendCommand(0, MCI_OPEN,
140	MCI_WAIT \| MCI_OPEN_TYPE_ID \| MCI_OPEN_SHAREABLE,
141	(PVOID) &AmpOpenParms,
142	0);
143	DeviceId = AmpOpenParms.usDeviceID;
144	if(rc) {
145	dprintf(("MCI_OPEN failed\n"));
146	mciError(rc);
147	ulError = MMSYSERR_NODRIVER;
148	}
149	if(rc == 0) {
150	//Grab exclusive rights to device instance (NOT entire device)
151	GenericParms.hwndCallback = 0; //Not needed, so set to 0
152	rc = mciSendCommand(DeviceId, MCI_ACQUIREDEVICE, MCI_EXCLUSIVE_INSTANCE,
153	(PVOID)&GenericParms, 0);
154	if(rc) {
155	dprintf(("MCI_ACQUIREDEVICE failed\n"));
156	mciError(rc);
157	ulError = MMSYSERR_NOTENABLED;
158	}
159	}
160	State = STATE_STOPPED;
161
162	setVolume(volume);
163
164	wmutex = new VMutex();
165	if(wmutex == NULL) {
166	ulError = MMSYSERR_NOTSUPPORTED;
167	}
168	if(wmutex)
169	wmutex->enter(VMUTEX_WAIT_FOREVER);
170
171	if(waveout == NULL) {
172	waveout = this;
173	}
174	else {
175	DartWaveOut *dwave = waveout;
176
177	while(dwave->next) {
178	dwave = dwave->next;
179	}
180	dwave->next = this;
181	}
182
183	if(wmutex)
184	wmutex->leave();
185	}
186	/******************************************************************************/
187	/******************************************************************************/
188	DartWaveOut::~DartWaveOut()
189	{
190	MCI_GENERIC_PARMS GenericParms;
191
192	if(!ulError) {
193	// Generic parameters
194	GenericParms.hwndCallback = 0; //hwndFrame
195
196	// Stop the playback.
197	mciSendCommand(DeviceId, MCI_STOP,MCI_WAIT, (PVOID)&GenericParms,0);
198
199	mciSendCommand(DeviceId,
200	MCI_BUFFER,
201	MCI_WAIT \| MCI_DEALLOCATE_MEMORY,
202	(PVOID)&BufferParms,
203	0);
204
205	// Generic parameters
206	GenericParms.hwndCallback = 0; //hwndFrame
207
208	// Close the device
209	mciSendCommand(DeviceId, MCI_CLOSE, MCI_WAIT, (PVOID)&GenericParms, 0);
210	}
211
212	if(wmutex)
213	wmutex->enter(VMUTEX_WAIT_FOREVER);
214
215	State = STATE_STOPPED;
216
217	if(waveout == this) {
218	waveout = this->next;
219	}
220	else {
221	DartWaveOut *dwave = waveout;
222
223	while(dwave->next != this) {
224	dwave = dwave->next;
225	}
226	dwave->next = this->next;
227	}
228	if(wmutex)
229	wmutex->leave();
230
231	if(!ulError) {
232	if(mthdCallback) {
233	callback((ULONG)this, WOM_CLOSE, dwInstance, 0, 0);
234	}
235	else
236	if(hwndCallback)
237	PostMessageA(hwndCallback, WOM_CLOSE, 0, 0);
238	}
239
240	if(wmutex)
241	delete wmutex;
242
243	if(MixBuffer)
244	free(MixBuffer);
245	if(MixSetupParms)
246	free(MixSetupParms);
247	if(BufferParms)
248	free(BufferParms);
249	}
250	/******************************************************************************/
251	/******************************************************************************/
252	MMRESULT DartWaveOut::getError()
253	{
254	return(ulError);
255	}
256	/******************************************************************************/
257	/******************************************************************************/
258	int DartWaveOut::getNumDevices()
259	{
260	MCI_GENERIC_PARMS GenericParms;
261	MCI_AMP_OPEN_PARMS AmpOpenParms;
262	APIRET rc;
263
264	// Setup the open structure, pass the playlist and tell MCI_OPEN to use it
265	memset(&AmpOpenParms,0,sizeof(AmpOpenParms));
266
267	AmpOpenParms.usDeviceID = ( USHORT ) 0;
268	AmpOpenParms.pszDeviceType = ( PSZ ) MCI_DEVTYPE_AUDIO_AMPMIX;
269
270	rc = mciSendCommand(0, MCI_OPEN,
271	MCI_WAIT \| MCI_OPEN_TYPE_ID \| MCI_OPEN_SHAREABLE,
272	(PVOID) &AmpOpenParms,
273	0);
274
275	if(rc) {
276	return 0; //no devices present
277	}
278
279	// Generic parameters
280	GenericParms.hwndCallback = 0; //hwndFrame
281
282	// Close the device
283	mciSendCommand(AmpOpenParms.usDeviceID, MCI_CLOSE, MCI_WAIT, (PVOID)&GenericParms, 0);
284
285	return 1;
286	}
287	/******************************************************************************/
288	/******************************************************************************/
289	MMRESULT DartWaveOut::write(LPWAVEHDR pwh, UINT cbwh)
290	{
291	MCI_GENERIC_PARMS GenericParms = {0};
292	APIRET rc;
293	int i, buflength;
294
295	if(fMixerSetup == FALSE)
296	{
297	dprintf(("device acquired\n"));
298	/* Set the MixSetupParms data structure to match the loaded file.
299	* This is a global that is used to setup the mixer.
300	*/
301	memset(MixSetupParms, 0, sizeof( MCI_MIXSETUP_PARMS ) );
302
303	MixSetupParms->ulBitsPerSample = BitsPerSample;
304	MixSetupParms->ulSamplesPerSec = SampleRate;
305	MixSetupParms->ulFormatTag = MCI_WAVE_FORMAT_PCM;
306	MixSetupParms->ulChannels = nChannels;
307
308	dprintf(("bps %d, sps %d chan %d\n", BitsPerSample, SampleRate, nChannels));
309
310	/* Setup the mixer for playback of wave data
311	*/
312	MixSetupParms->ulFormatMode = MCI_PLAY;
313	MixSetupParms->ulDeviceType = MCI_DEVTYPE_WAVEFORM_AUDIO;
314	MixSetupParms->pmixEvent = WaveOutHandler;
315
316	rc = mciSendCommand(DeviceId,
317	MCI_MIXSETUP,
318	MCI_WAIT \| MCI_MIXSETUP_INIT,
319	(PVOID)MixSetupParms,
320	0);
321
322	if ( rc != MCIERR_SUCCESS ) {
323	mciError(rc);
324	mciSendCommand(DeviceId, MCI_RELEASEDEVICE, MCI_WAIT,
325	(PVOID)&GenericParms, 0);
326	return(MMSYSERR_NOTSUPPORTED);
327	}
328
329	/*
330	* Set up the BufferParms data structure and allocate
331	* device buffers from the Amp-Mixer
332	*/
333	dprintf(("mix setup %d, %d\n", pwh->dwBufferLength, pwh->dwBufferLength));
334
335	#if 1
336	ulBufSize = pwh->dwBufferLength/2;
337	#else
338	if(pwh->dwBufferLength >= 512 && pwh->dwBufferLength <= 1024)
339	ulBufSize = pwh->dwBufferLength;
340	else ulBufSize = 1024;
341	#endif
342
343	MixSetupParms->ulBufferSize = ulBufSize;
344
345	BufferParms->ulNumBuffers = PREFILLBUF_DART;
346	BufferParms->ulBufferSize = MixSetupParms->ulBufferSize;
347	BufferParms->pBufList = MixBuffer;
348
349	for(i=0;i<PREFILLBUF_DART;i++) {
350	MixBuffer[i].ulUserParm = (ULONG)this;
351	}
352
353	rc = mciSendCommand(DeviceId,
354	MCI_BUFFER,
355	MCI_WAIT \| MCI_ALLOCATE_MEMORY,
356	(PVOID)BufferParms,
357	0);
358
359	if(ULONG_LOWD(rc) != MCIERR_SUCCESS) {
360	mciError(rc);
361	mciSendCommand(DeviceId, MCI_RELEASEDEVICE, MCI_WAIT,
362	(PVOID)&GenericParms, 0);
363	return(MMSYSERR_NOTSUPPORTED);
364	}
365
366	wmutex->enter(VMUTEX_WAIT_FOREVER);
367	fMixerSetup = TRUE;
368
369	curPlayBuf = curFillBuf = curFillPos = curPlayPos = 0;
370
371	for(i=0;i<PREFILLBUF_DART;i++) {
372	memset(MixBuffer[i].pBuffer, 0, MixBuffer[i].ulBufferLength);
373	}
374	dprintf(("Dart opened, bufsize = %d\n", MixBuffer[i].ulBufferLength));
375
376	wavehdr = pwh;
377	curhdr = pwh;
378	pwh->lpNext = NULL;
379
380	while(TRUE) {
381	buflength = min((ULONG)MixBuffer[curFillBuf].ulBufferLength - curPlayPos,
382	(ULONG)wavehdr->dwBufferLength - curFillPos);
383	dprintf(("Copying %d data; curPlayPos = %d curFillPos = %d\n", buflength, curPlayPos, curFillPos));
384
385	memcpy((char *)MixBuffer[curFillBuf].pBuffer + curPlayPos,
386	wavehdr->lpData + curFillPos,
387	buflength);
388
389	curPlayPos += buflength;
390	curFillPos += buflength;
391	if(curFillPos == wavehdr->dwBufferLength) {
392	dprintf(("Processed first win32 buffer\n"));
393	curFillPos = 0;
394	wavehdr->dwFlags \|= WHDR_DONE;
395	curhdr = NULL;
396	}
397	if(curPlayPos == MixBuffer[curPlayBuf].ulBufferLength) {
398	if(++curPlayBuf == PREFILLBUF_DART) {
399	curPlayBuf = 0;
400	break;
401	}
402	curPlayPos = 0;
403	}
404	if(curFillPos == 0)
405	break;
406	}
407	dprintf(("MixSetupParms = %X\n", MixSetupParms));
408	State = STATE_PLAYING;
409	wmutex->leave();
410
411	MixSetupParms->pmixWrite(MixSetupParms->ulMixHandle,
412	MixBuffer,
413	PREFILLBUF_DART);
414	dprintf(("Dart playing\n"));
415	}
416	else
417	{
418	wmutex->enter(VMUTEX_WAIT_FOREVER);
419	pwh->lpNext = NULL;
420	if(wavehdr) {
421	WAVEHDR *chdr = wavehdr;
422	while(chdr->lpNext) {
423	chdr = chdr->lpNext;
424	}
425	chdr->lpNext = pwh;
426	}
427	else wavehdr = pwh;
428	wmutex->leave();
429	if(State != STATE_PLAYING) {//continue playback
430	restart();
431	}
432	}
433
434	return(MMSYSERR_NOERROR);
435	}
436	/******************************************************************************/
437	/******************************************************************************/
438	MMRESULT DartWaveOut::pause()
439	{
440	MCI_GENERIC_PARMS Params;
441
442	if(State != STATE_PLAYING)
443	return(MMSYSERR_NOERROR);
444
445	wmutex->enter(VMUTEX_WAIT_FOREVER);
446	State = STATE_PAUSED;
447	wmutex->leave();
448
449	memset(&Params, 0, sizeof(Params));
450
451	// Stop the playback.
452	mciSendCommand(DeviceId, MCI_PAUSE, MCI_WAIT, (PVOID)&Params, 0);
453
454	return(MMSYSERR_NOERROR);
455	}
456	/******************************************************************************/
457	/******************************************************************************/
458	MMRESULT DartWaveOut::reset()
459	{
460	MCI_GENERIC_PARMS Params;
461
462	dprintf(("DartWaveOut::reset %s", (State == STATE_PLAYING) ? "playing" : "stopped"));
463	if(State != STATE_PLAYING)
464	return(MMSYSERR_HANDLEBUSY);
465
466	memset(&Params, 0, sizeof(Params));
467
468	// Stop the playback.
469	mciSendCommand(DeviceId, MCI_STOP, MCI_WAIT, (PVOID)&Params, 0);
470
471	dprintf(("Nr of threads blocked on mutex = %d\n", wmutex->getNrBlocked()));
472
473	wmutex->enter(VMUTEX_WAIT_FOREVER);
474	while(wavehdr) {
475	wavehdr->dwFlags \|= WHDR_DONE;
476	wmutex->leave();
477	if(mthdCallback) {
478	callback((ULONG)this, WOM_DONE, dwInstance, wavehdr->dwUser, (ULONG)wavehdr);
479	}
480	else {
481	if(hwndCallback)
482	PostMessageA(hwndCallback, WOM_DONE, wavehdr->dwUser, (ULONG)wavehdr);
483	}
484	wmutex->enter(VMUTEX_WAIT_FOREVER);
485	wavehdr = wavehdr->lpNext;
486	}
487	wavehdr = NULL;
488	State = STATE_STOPPED;
489
490	wmutex->leave();
491	return(MMSYSERR_NOERROR);
492	}
493	/******************************************************************************/
494	/******************************************************************************/
495	MMRESULT DartWaveOut::restart()
496	{
497	dprintf(("DartWaveOut::restart"));
498	wmutex->enter(VMUTEX_WAIT_FOREVER);
499	State = STATE_PLAYING;
500	wmutex->leave();
501	MixSetupParms->pmixWrite(MixSetupParms->ulMixHandle,
502	&MixBuffer[curPlayBuf],
503	PREFILLBUF_DART);
504	return(MMSYSERR_NOERROR);
505	}
506	/******************************************************************************/
507	/******************************************************************************/
508	ULONG DartWaveOut::getPosition()
509	{
510	MCI_STATUS_PARMS mciStatus = {0};
511	ULONG rc, nrbytes;
512
513	if(State != STATE_PLAYING)
514	return 0;
515
516	mciStatus.ulItem = MCI_STATUS_POSITION;
517	rc = mciSendCommand(DeviceId, MCI_STATUS, MCI_STATUS_ITEM\|MCI_WAIT, (PVOID)&mciStatus, 0);
518	if((rc & 0xFFFF) == MCIERR_SUCCESS) {
519	nrbytes = (mciStatus.ulReturn * (getAvgBytesPerSecond()/1000));
520	return nrbytes;;
521	}
522	mciError(rc);
523	return 0xFFFFFFFF;
524	}
525	/******************************************************************************/
526	/******************************************************************************/
527	BOOL DartWaveOut::queryFormat(ULONG formatTag, ULONG nChannels,
528	ULONG nSamplesPerSec, ULONG wBitsPerSample)
529	{
530	MCI_WAVE_GETDEVCAPS_PARMS mciAudioCaps;
531	MCI_GENERIC_PARMS GenericParms;
532	MCI_OPEN_PARMS mciOpenParms; /* open parms for MCI_OPEN */
533	int i, freqbits = 0;
534	ULONG rc, DeviceId;
535	BOOL winrc;
536
537	dprintf(("DartWaveOut::queryFormat %x srate=%d, nchan=%d, bps=%d", formatTag, nSamplesPerSec, nChannels, wBitsPerSample));
538
539	memset(&mciOpenParms, /* Object to fill with zeros. */
540	0, /* Value to place into the object. */
541	sizeof( mciOpenParms ) ); /* How many zero's to use. */
542
543	mciOpenParms.pszDeviceType = (PSZ)MCI_DEVTYPE_WAVEFORM_AUDIO;
544
545	rc = mciSendCommand( (USHORT) 0,
546	MCI_OPEN,
547	MCI_WAIT \| MCI_OPEN_TYPE_ID,
548	(PVOID) &mciOpenParms,
549	0);
550	if (rc != 0) {
551	return(FALSE);
552	}
553	DeviceId = mciOpenParms.usDeviceID;
554
555	memset( &mciAudioCaps , 0, sizeof(MCI_WAVE_GETDEVCAPS_PARMS));
556
557	mciAudioCaps.ulBitsPerSample = wBitsPerSample;
558	mciAudioCaps.ulFormatTag = DATATYPE_WAVEFORM;
559	mciAudioCaps.ulSamplesPerSec = nSamplesPerSec;
560	mciAudioCaps.ulChannels = nChannels;
561	mciAudioCaps.ulFormatMode = MCI_PLAY;
562	mciAudioCaps.ulItem = MCI_GETDEVCAPS_WAVE_FORMAT;
563
564	rc = mciSendCommand(DeviceId, /* Device ID */
565	MCI_GETDEVCAPS,
566	MCI_WAIT \| MCI_GETDEVCAPS_EXTENDED \| MCI_GETDEVCAPS_ITEM,
567	(PVOID) &mciAudioCaps,
568	0);
569	if((rc & 0xFFFF) != MCIERR_SUCCESS) {
570	mciError(rc);
571	winrc = FALSE;
572	}
573	else winrc = TRUE;
574
575	// Close the device
576	mciSendCommand(DeviceId,MCI_CLOSE,MCI_WAIT,(PVOID)&GenericParms,0);
577	return(winrc);
578	}
579	/******************************************************************************/
580	/******************************************************************************/
581	void DartWaveOut::mciError(ULONG ulError)
582	{
583	#ifdef DEBUG
584	char szError[256] = "";
585
586	mciGetErrorString(ulError, szError, sizeof(szError));
587	dprintf(("WINMM: DartWaveOut: %s\n", szError));
588	#endif
589	}
590	//******************************************************************************
591	//******************************************************************************
592	BOOL DartWaveOut::find(DartWaveOut *dwave)
593	{
594	DartWaveOut *curwave = waveout;
595
596	while(curwave) {
597	if(dwave == curwave) {
598	return(TRUE);
599	}
600	curwave = curwave->next;
601	}
602
603	#ifdef DEBUG
604	// WriteLog("WINMM:DartWaveOut not found!\n");
605	#endif
606	return(FALSE);
607	}
608	/******************************************************************************/
609	/******************************************************************************/
610	void DartWaveOut::handler(ULONG ulStatus, PMCI_MIX_BUFFER pBuffer, ULONG ulFlags)
611	{
612	ULONG buflength;
613	WAVEHDR whdr = wavehdr, prevhdr = NULL;
614
615	#ifdef DEBUG1
616	dprintf(("WINMM: handler %d\n", curPlayBuf));
617	#endif
618	if(ulFlags == MIX_STREAM_ERROR) {
619	if(ulStatus == ERROR_DEVICE_UNDERRUN) {
620	dprintf(("WINMM: WaveOut handler UNDERRUN!\n"));
621	pause(); //out of buffers, so pause playback
622	return;
623	}
624	dprintf(("WINMM: WaveOut handler, Unknown error %X\n", ulStatus));
625	return;
626	}
627	wmutex->enter(VMUTEX_WAIT_FOREVER);
628
629	while(whdr) {
630	if(whdr->dwFlags & WHDR_DONE) {
631	#ifdef DEBUG1
632	dprintf(("WINMM: handler buf %X done\n", whdr));
633	#endif
634	whdr->dwFlags &= ~WHDR_INQUEUE;
635
636	if(prevhdr == NULL)
637	wavehdr = whdr->lpNext;
638	else prevhdr->lpNext = whdr->lpNext;
639
640	whdr->lpNext = NULL;
641	wmutex->leave();
642
643	if(mthdCallback) {
644	callback((ULONG)this, WOM_DONE, dwInstance, whdr->dwUser, (ULONG)whdr);
645	}
646	else
647	if(hwndCallback)
648	PostMessageA(hwndCallback, WOM_DONE, whdr->dwUser, (ULONG)whdr);
649
650	wmutex->enter(VMUTEX_WAIT_FOREVER);
651	}
652	prevhdr = whdr;
653	whdr = whdr->lpNext;
654	}
655
656	if(curhdr == NULL)
657	curhdr = wavehdr;
658
659	#ifdef DEBUG1
660	dprintf(("WINMM: handler cur (%d,%d), fill (%d,%d)\n", curPlayBuf, curPlayPos, curFillBuf, curFillPos));
661	#endif
662
663	while(curhdr) {
664	buflength = min((ULONG)MixBuffer[curFillBuf].ulBufferLength - curPlayPos,
665	(ULONG)curhdr->dwBufferLength - curFillPos);
666	memcpy((char *)MixBuffer[curFillBuf].pBuffer + curPlayPos,
667	curhdr->lpData + curFillPos,
668	buflength);
669	curPlayPos += buflength;
670	curFillPos += buflength;
671	#ifdef DEBUG1
672	dprintf(("WINMM: copied %d bytes, cufFillPos = %d, dwBufferLength = %d\n", buflength, curFillPos, curhdr->dwBufferLength));
673	#endif
674	if(curFillPos == curhdr->dwBufferLength) {
675	#ifdef DEBUG1
676	dprintf(("Buffer %d done\n", curFillBuf));
677	#endif
678	curFillPos = 0;
679	curhdr->dwFlags \|= WHDR_DONE;
680	//search for next unprocessed buffer
681	while(curhdr && curhdr->dwFlags & WHDR_DONE)
682	curhdr = curhdr->lpNext;
683	}
684	if(curPlayPos == MixBuffer[curFillBuf].ulBufferLength) {
685	curPlayPos = 0;
686	if(++curFillBuf == PREFILLBUF_DART) {
687	curFillBuf = 0;
688	}
689	if(curFillBuf == curPlayBuf)
690	break; //no more room left
691	}
692	}
693
694	if(curPlayBuf == PREFILLBUF_DART-1)
695	curPlayBuf = 0;
696	else curPlayBuf++;
697
698	wmutex->leave();
699	//Transfer buffer to DART
700	MixSetupParms->pmixWrite(MixSetupParms->ulMixHandle, &MixBuffer[curPlayBuf], 1);
701	}
702	/******************************************************************************/
703	/******************************************************************************/
704	LONG APIENTRY WaveOutHandler(ULONG ulStatus,
705	PMCI_MIX_BUFFER pBuffer,
706	ULONG ulFlags)
707	{
708	// PTIB ptib;
709	// PPIB ppib;
710	// DosGetInfoBlocks(&ptib, &ppib);
711	// dprintf(("WaveOutHandler: thread %d prio %X", ptib->tib_ptib2->tib2_ultid, ptib->tib_ptib2->tib2_ulpri));
712
713	DartWaveOut *dwave;
714
715	if(pBuffer && pBuffer->ulUserParm)
716	{
717	dwave = (DartWaveOut *)pBuffer->ulUserParm;
718	dwave->handler(ulStatus, pBuffer, ulFlags);
719	}
720	return(TRUE);
721	}
722
723	/******************************************************************************/
724	/******************************************************************************/
725	MMRESULT DartWaveOut::setVolume(ULONG ulVol)
726	{
727	ULONG ulVolR = (((ulVol & 0xffff0000) >> 16 )*100)/0xFFFF; // Right Volume
728	ULONG ulVolL = ((ulVol& 0x0000ffff)*100)/0xFFFF; // Left Volume
729	MCI_SET_PARMS msp = {0};
730
731	volume = ulVol;
732
733	// PD: My card (ESS 1868 PnP) driver can't change only
734	// one channel Left or Right :-(
735	//
736	#ifdef GOOD_AUDIO_CARD_DRIVER
737
738	msp.ulAudio = MCI_SET_AUDIO_LEFT;
739	msp.ulLevel = ulVolL;
740
741	mciSendCommand(DeviceId, MCI_SET,
742	MCI_WAIT \| MCI_SET_AUDIO \| MCI_SET_VOLUME,
743	&msp, 0);
744
745	msp.ulAudio = MCI_SET_AUDIO_RIGHT;
746	msp.ulLevel = ulVolR;
747
748	#else
749	msp.ulAudio = MCI_SET_AUDIO_ALL;
750	msp.ulLevel = max(ulVolR,ulVolL);
751	#endif
752
753	mciSendCommand(DeviceId, MCI_SET,
754	MCI_WAIT \| MCI_SET_AUDIO \| MCI_SET_VOLUME,
755	&msp, 0);
756	return 0;
757	}
758	/******************************************************************************/
759	/******************************************************************************/
760	DartWaveOut *DartWaveOut::waveout = NULL;
761

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