Context Navigation

source: trunk/src/winmm/dwaveout.cpp@ 2292

Visit:

Last change on this file since 2292 was 2286, checked in by sandervl, 26 years ago
PD: implemented waveOutGet/SetVolume
File size: 22.8 KB

Line
1	/* $Id: dwaveout.cpp,v 1.13 1999-12-31 13:55:51 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 "win32type.h"
28	#include <wprocess.h>
29
30	#include "misc.h"
31	#include "dwaveout.h"
32
33	#ifndef min
34	#define min(a, b) ((a > b) ? b : a)
35	#endif
36
37	#ifndef max
38	#define max(a, b) ((a > b) ? a : b)
39	#endif
40
41	//SvL: 23/09/99: WinPostMsg no longer works, as win32 window handles are no longer PM handles
42	BOOL WIN32API PostMessageA(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
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	switch(pwfx->nBlockAlign) {
128	case 1://8 bits mono
129	BitsPerSample = 8;
130	break;
131	case 2://16 bits mono or 8 bits stereo
132	if(nChannels == 1)
133	BitsPerSample = 16;
134	else BitsPerSample = 8;
135	break;
136	case 4://16 bits stereo
137	BitsPerSample = 16;
138	break;
139	}
140	SampleRate = pwfx->nSamplesPerSec;
141	this->nChannels = pwfx->nChannels;
142	ulBufSize = DART_BUFSIZE;
143
144	// Setup the open structure, pass the playlist and tell MCI_OPEN to use it
145	memset(&AmpOpenParms,0,sizeof(AmpOpenParms));
146
147	AmpOpenParms.usDeviceID = ( USHORT ) 0;
148	AmpOpenParms.pszDeviceType = ( PSZ ) MCI_DEVTYPE_AUDIO_AMPMIX;
149
150	rc = mciSendCommand(0, MCI_OPEN,
151	MCI_WAIT \| MCI_OPEN_TYPE_ID \| MCI_OPEN_SHAREABLE,
152	(PVOID) &AmpOpenParms,
153	0);
154	DeviceId = AmpOpenParms.usDeviceID;
155	if(rc) {
156	#ifdef DEBUG
157	WriteLog("MCI_OPEN failed\n");
158	#endif
159	mciError(rc);
160	ulError = MMSYSERR_NODRIVER;
161	}
162	if(rc == 0) {
163	//Grab exclusive rights to device instance (NOT entire device)
164	GenericParms.hwndCallback = 0; //Not needed, so set to 0
165	rc = mciSendCommand(DeviceId, MCI_ACQUIREDEVICE, MCI_EXCLUSIVE_INSTANCE,
166	(PVOID)&GenericParms, 0);
167	if(rc) {
168	#ifdef DEBUG
169	WriteLog("MCI_ACQUIREDEVICE failed\n");
170	#endif
171	mciError(rc);
172	ulError = MMSYSERR_NOTENABLED;
173	}
174	}
175	State = STATE_STOPPED;
176
177	setVolume(volume);
178
179	wmutex = new VMutex();
180	if(wmutex == NULL) {
181	ulError = MMSYSERR_NOTSUPPORTED;
182	}
183	if(wmutex)
184	wmutex->enter(VMUTEX_WAIT_FOREVER);
185
186	if(waveout == NULL) {
187	waveout = this;
188	}
189	else {
190	DartWaveOut *dwave = waveout;
191
192	while(dwave->next) {
193	dwave = dwave->next;
194	}
195	dwave->next = this;
196	}
197
198	if(wmutex)
199	wmutex->leave();
200	}
201	/******************************************************************************/
202	/******************************************************************************/
203	DartWaveOut::~DartWaveOut()
204	{
205	MCI_GENERIC_PARMS GenericParms;
206
207	if(!ulError) {
208	// Generic parameters
209	GenericParms.hwndCallback = 0; //hwndFrame
210
211	// Stop the playback.
212	mciSendCommand(DeviceId, MCI_STOP,MCI_WAIT, (PVOID)&GenericParms,0);
213
214	mciSendCommand(DeviceId,
215	MCI_BUFFER,
216	MCI_WAIT \| MCI_DEALLOCATE_MEMORY,
217	(PVOID)&BufferParms,
218	0);
219
220	// Generic parameters
221	GenericParms.hwndCallback = 0; //hwndFrame
222
223	// Close the device
224	mciSendCommand(DeviceId, MCI_CLOSE, MCI_WAIT, (PVOID)&GenericParms, 0);
225	}
226
227	if(wmutex)
228	wmutex->enter(VMUTEX_WAIT_FOREVER);
229
230	State = STATE_STOPPED;
231
232	if(waveout == this) {
233	waveout = this->next;
234	}
235	else {
236	DartWaveOut *dwave = waveout;
237
238	while(dwave->next != this) {
239	dwave = dwave->next;
240	}
241	dwave->next = this->next;
242	}
243	if(wmutex)
244	wmutex->leave();
245
246	if(!ulError) {
247	if(mthdCallback) {
248	callback((ULONG)this, WOM_CLOSE, dwInstance, 0, 0);
249	}
250	else
251	if(hwndCallback)
252	PostMessageA(hwndCallback, WOM_CLOSE, 0, 0);
253	}
254
255	if(wmutex)
256	delete wmutex;
257
258	if(MixBuffer)
259	free(MixBuffer);
260	if(MixSetupParms)
261	free(MixSetupParms);
262	if(BufferParms)
263	free(BufferParms);
264	}
265	/******************************************************************************/
266	/******************************************************************************/
267	MMRESULT DartWaveOut::getError()
268	{
269	return(ulError);
270	}
271	/******************************************************************************/
272	/******************************************************************************/
273	int DartWaveOut::getNumDevices()
274	{
275	MCI_GENERIC_PARMS GenericParms;
276	MCI_AMP_OPEN_PARMS AmpOpenParms;
277	APIRET rc;
278
279	// Setup the open structure, pass the playlist and tell MCI_OPEN to use it
280	memset(&AmpOpenParms,0,sizeof(AmpOpenParms));
281
282	AmpOpenParms.usDeviceID = ( USHORT ) 0;
283	AmpOpenParms.pszDeviceType = ( PSZ ) MCI_DEVTYPE_AUDIO_AMPMIX;
284
285	rc = mciSendCommand(0, MCI_OPEN,
286	MCI_WAIT \| MCI_OPEN_TYPE_ID \| MCI_OPEN_SHAREABLE,
287	(PVOID) &AmpOpenParms,
288	0);
289
290	if(rc) {
291	return 0; //no devices present
292	}
293
294	// Generic parameters
295	GenericParms.hwndCallback = 0; //hwndFrame
296
297	// Close the device
298	mciSendCommand(AmpOpenParms.usDeviceID, MCI_CLOSE, MCI_WAIT, (PVOID)&GenericParms, 0);
299
300	return 1;
301	}
302	/******************************************************************************/
303	/******************************************************************************/
304	MMRESULT DartWaveOut::write(LPWAVEHDR pwh, UINT cbwh)
305	{
306	MCI_GENERIC_PARMS GenericParms = {0};
307	APIRET rc;
308	int i, buflength;
309
310	if(fMixerSetup == FALSE) {
311	#ifdef DEBUG
312	WriteLog("device acquired\n");
313	#endif
314	/* Set the MixSetupParms data structure to match the loaded file.
315	* This is a global that is used to setup the mixer.
316	*/
317	memset(MixSetupParms, 0, sizeof( MCI_MIXSETUP_PARMS ) );
318
319	MixSetupParms->ulBitsPerSample = BitsPerSample;
320	MixSetupParms->ulSamplesPerSec = SampleRate;
321	MixSetupParms->ulFormatTag = MCI_WAVE_FORMAT_PCM;
322	MixSetupParms->ulChannels = nChannels;
323
324	#ifdef DEBUG
325	WriteLog("bps %d, sps %d chan %d\n", BitsPerSample, SampleRate, nChannels);
326	#endif
327
328	/* Setup the mixer for playback of wave data
329	*/
330	MixSetupParms->ulFormatMode = MCI_PLAY;
331	MixSetupParms->ulDeviceType = MCI_DEVTYPE_WAVEFORM_AUDIO;
332	MixSetupParms->pmixEvent = WaveOutHandler;
333
334	rc = mciSendCommand(DeviceId,
335	MCI_MIXSETUP,
336	MCI_WAIT \| MCI_MIXSETUP_INIT,
337	(PVOID)MixSetupParms,
338	0);
339
340	if ( rc != MCIERR_SUCCESS ) {
341	mciError(rc);
342	mciSendCommand(DeviceId, MCI_RELEASEDEVICE, MCI_WAIT,
343	(PVOID)&GenericParms, 0);
344	return(MMSYSERR_NOTSUPPORTED);
345	}
346
347	/*
348	* Set up the BufferParms data structure and allocate
349	* device buffers from the Amp-Mixer
350	*/
351	#ifdef DEBUG
352	WriteLog("mix setup %d, %d\n", pwh->dwBufferLength, pwh->dwBufferLength);
353	#endif
354	#if 1
355	ulBufSize = pwh->dwBufferLength/2;
356	#else
357	if(pwh->dwBufferLength >= 512 && pwh->dwBufferLength <= 1024)
358	ulBufSize = pwh->dwBufferLength;
359	else ulBufSize = 1024;
360	#endif
361
362	MixSetupParms->ulBufferSize = ulBufSize;
363
364	BufferParms->ulNumBuffers = PREFILLBUF_DART;
365	BufferParms->ulBufferSize = MixSetupParms->ulBufferSize;
366	BufferParms->pBufList = MixBuffer;
367
368	for(i=0;i<PREFILLBUF_DART;i++) {
369	MixBuffer[i].ulUserParm = (ULONG)this;
370	}
371
372	rc = mciSendCommand(DeviceId,
373	MCI_BUFFER,
374	MCI_WAIT \| MCI_ALLOCATE_MEMORY,
375	(PVOID)BufferParms,
376	0);
377
378	if(ULONG_LOWD(rc) != MCIERR_SUCCESS) {
379	mciError(rc);
380	mciSendCommand(DeviceId, MCI_RELEASEDEVICE, MCI_WAIT,
381	(PVOID)&GenericParms, 0);
382	return(MMSYSERR_NOTSUPPORTED);
383	}
384
385	wmutex->enter(VMUTEX_WAIT_FOREVER);
386	fMixerSetup = TRUE;
387
388	curPlayBuf = curFillBuf = curFillPos = curPlayPos = 0;
389
390	for(i=0;i<PREFILLBUF_DART;i++) {
391	memset(MixBuffer[i].pBuffer, 0, MixBuffer[i].ulBufferLength);
392	}
393	#ifdef DEBUG
394	WriteLog("Dart opened, bufsize = %d\n", MixBuffer[i].ulBufferLength);
395	#endif
396
397	wavehdr = pwh;
398	curhdr = pwh;
399	pwh->lpNext = NULL;
400
401	while(TRUE) {
402	buflength = min((ULONG)MixBuffer[curFillBuf].ulBufferLength - curPlayPos,
403	(ULONG)wavehdr->dwBufferLength - curFillPos);
404	#ifdef DEBUG
405	WriteLog("Copying %d data; curPlayPos = %d curFillPos = %d\n", buflength, curPlayPos, curFillPos);
406	#endif
407	memcpy((char *)MixBuffer[curFillBuf].pBuffer + curPlayPos,
408	wavehdr->lpData + curFillPos,
409	buflength);
410
411	curPlayPos += buflength;
412	curFillPos += buflength;
413	if(curFillPos == wavehdr->dwBufferLength) {
414	#ifdef DEBUG
415	WriteLog("Processed first win32 buffer\n");
416	#endif
417	curFillPos = 0;
418	wavehdr->dwFlags \|= WHDR_DONE;
419	curhdr = NULL;
420	}
421	if(curPlayPos == MixBuffer[curPlayBuf].ulBufferLength) {
422	if(++curPlayBuf == PREFILLBUF_DART) {
423	curPlayBuf = 0;
424	break;
425	}
426	curPlayPos = 0;
427	}
428	if(curFillPos == 0)
429	break;
430	}
431	#ifdef DEBUG
432	WriteLog("MixSetupParms = %X\n", MixSetupParms);
433	#endif
434	State = STATE_PLAYING;
435	wmutex->leave();
436
437	MixSetupParms->pmixWrite(MixSetupParms->ulMixHandle,
438	MixBuffer,
439	PREFILLBUF_DART);
440	#ifdef DEBUG
441	WriteLog("Dart playing\n");
442	#endif
443	}
444	else {
445	wmutex->enter(VMUTEX_WAIT_FOREVER);
446	pwh->lpNext = NULL;
447	if(wavehdr) {
448	WAVEHDR *chdr = wavehdr;
449	while(chdr->lpNext) {
450	chdr = chdr->lpNext;
451	}
452	chdr->lpNext = pwh;
453	}
454	else wavehdr = pwh;
455	wmutex->leave();
456	if(State != STATE_PLAYING) {//continue playback
457	restart();
458	}
459	}
460
461	return(MMSYSERR_NOERROR);
462	}
463	/******************************************************************************/
464	/******************************************************************************/
465	MMRESULT DartWaveOut::pause()
466	{
467	MCI_GENERIC_PARMS Params;
468
469	if(State != STATE_PLAYING)
470	return(MMSYSERR_HANDLEBUSY);
471
472	wmutex->enter(VMUTEX_WAIT_FOREVER);
473	State = STATE_PAUSED;
474	wmutex->leave();
475
476	memset(&Params, 0, sizeof(Params));
477
478	// Stop the playback.
479	mciSendCommand(DeviceId, MCI_PAUSE, MCI_WAIT, (PVOID)&Params, 0);
480
481	return(MMSYSERR_NOERROR);
482	}
483	/******************************************************************************/
484	/******************************************************************************/
485	MMRESULT DartWaveOut::reset()
486	{
487	MCI_GENERIC_PARMS Params;
488
489	dprintf(("DartWaveOut::reset %s", (State == STATE_PLAYING) ? "playing" : "stopped"));
490	if(State != STATE_PLAYING)
491	return(MMSYSERR_HANDLEBUSY);
492
493	memset(&Params, 0, sizeof(Params));
494
495	// Stop the playback.
496	mciSendCommand(DeviceId, MCI_STOP, MCI_WAIT, (PVOID)&Params, 0);
497
498	#ifdef DEBUG
499	WriteLog("Nr of threads blocked on mutex = %d\n", wmutex->getNrBlocked());
500	#endif
501
502	wmutex->enter(VMUTEX_WAIT_FOREVER);
503	while(wavehdr) {
504	wavehdr->dwFlags \|= WHDR_DONE;
505	wmutex->leave();
506	if(mthdCallback) {
507	callback((ULONG)this, WOM_DONE, dwInstance, wavehdr->dwUser, (ULONG)wavehdr);
508	}
509	else
510	if(hwndCallback)
511	PostMessageA(hwndCallback, WOM_DONE, wavehdr->dwUser, (ULONG)wavehdr);
512
513	wmutex->enter(VMUTEX_WAIT_FOREVER);
514	wavehdr = wavehdr->lpNext;
515	}
516	wavehdr = NULL;
517	State = STATE_STOPPED;
518
519	wmutex->leave();
520	return(MMSYSERR_NOERROR);
521	}
522	/******************************************************************************/
523	/******************************************************************************/
524	MMRESULT DartWaveOut::restart()
525	{
526	dprintf(("DartWaveOut::restart"));
527	wmutex->enter(VMUTEX_WAIT_FOREVER);
528	State = STATE_PLAYING;
529	wmutex->leave();
530	MixSetupParms->pmixWrite(MixSetupParms->ulMixHandle,
531	&MixBuffer[curPlayBuf],
532	PREFILLBUF_DART);
533	return(MMSYSERR_NOERROR);
534	}
535	/******************************************************************************/
536	/******************************************************************************/
537	BOOL DartWaveOut::queryFormat(ULONG formatTag, ULONG nChannels,
538	ULONG nSamplesPerSec, ULONG sampleSize)
539	{
540	MCI_WAVE_GETDEVCAPS_PARMS mciAudioCaps;
541	MCI_GENERIC_PARMS GenericParms;
542	MCI_OPEN_PARMS mciOpenParms; /* open parms for MCI_OPEN */
543	int i, freqbits = 0;
544	ULONG rc, DeviceId;
545	BOOL winrc;
546
547	memset(&mciOpenParms, /* Object to fill with zeros. */
548	0, /* Value to place into the object. */
549	sizeof( mciOpenParms ) ); /* How many zero's to use. */
550
551	mciOpenParms.pszDeviceType = (PSZ)MCI_DEVTYPE_WAVEFORM_AUDIO;
552
553	rc = mciSendCommand( (USHORT) 0,
554	MCI_OPEN,
555	MCI_WAIT \| MCI_OPEN_TYPE_ID,
556	(PVOID) &mciOpenParms,
557	0);
558	if (rc != 0) {
559	return(FALSE);
560	}
561	DeviceId = mciOpenParms.usDeviceID;
562
563	memset( &mciAudioCaps , 0, sizeof(MCI_WAVE_GETDEVCAPS_PARMS));
564
565	switch(sampleSize) {
566	case 1:
567	mciAudioCaps.ulBitsPerSample = 8;
568	break;
569	case 2:
570	if(nChannels == 1)
571	mciAudioCaps.ulBitsPerSample = 16;
572	else mciAudioCaps.ulBitsPerSample = 8;
573	break;
574	case 4:
575	mciAudioCaps.ulBitsPerSample = 16;
576	break;
577	}
578	mciAudioCaps.ulFormatTag = DATATYPE_WAVEFORM;
579	mciAudioCaps.ulSamplesPerSec = nSamplesPerSec;
580	mciAudioCaps.ulChannels = nChannels;
581	mciAudioCaps.ulFormatMode = MCI_PLAY;
582	mciAudioCaps.ulItem = MCI_GETDEVCAPS_WAVE_FORMAT;
583
584	rc = mciSendCommand(DeviceId, /* Device ID */
585	MCI_GETDEVCAPS,
586	MCI_WAIT \| MCI_GETDEVCAPS_EXTENDED \| MCI_GETDEVCAPS_ITEM,
587	(PVOID) &mciAudioCaps,
588	0);
589	if((rc & 0xFFFF) != MCIERR_SUCCESS) {
590	mciError(rc);
591	winrc = FALSE;
592	}
593	// Close the device
594	mciSendCommand(DeviceId,MCI_CLOSE,MCI_WAIT,(PVOID)&GenericParms,0);
595	return(winrc);
596	}
597	/******************************************************************************/
598	/******************************************************************************/
599	void DartWaveOut::mciError(ULONG ulError)
600	{
601	#ifdef DEBUG
602	char szError[256] = "";
603
604	mciGetErrorString(ulError, szError, sizeof(szError));
605	WriteLog("WINMM: DartWaveOut: %s\n", szError);
606	#endif
607	}
608	//******************************************************************************
609	//******************************************************************************
610	BOOL DartWaveOut::find(DartWaveOut *dwave)
611	{
612	DartWaveOut *curwave = waveout;
613
614	while(curwave) {
615	if(dwave == curwave) {
616	return(TRUE);
617	}
618	curwave = curwave->next;
619	}
620
621	#ifdef DEBUG
622	// WriteLog("WINMM:DartWaveOut not found!\n");
623	#endif
624	return(FALSE);
625	}
626	/******************************************************************************/
627	/******************************************************************************/
628	void DartWaveOut::handler(ULONG ulStatus, PMCI_MIX_BUFFER pBuffer, ULONG ulFlags)
629	{
630	ULONG buflength;
631	WAVEHDR whdr = wavehdr, prevhdr = NULL;
632
633	#ifdef DEBUG1
634	WriteLog("WINMM: handler %d\n", curPlayBuf);
635	#endif
636	if(ulFlags == MIX_STREAM_ERROR) {
637	if(ulStatus == ERROR_DEVICE_UNDERRUN) {
638	dprintf(("WINMM: WaveOut handler UNDERRUN!\n"));
639	pause(); //out of buffers, so pause playback
640	return;
641	}
642	dprintf(("WINMM: WaveOut handler, Unknown error %X\n", ulStatus));
643	return;
644	}
645	wmutex->enter(VMUTEX_WAIT_FOREVER);
646
647	while(whdr) {
648	if(whdr->dwFlags & WHDR_DONE) {
649	#ifdef DEBUG1
650	WriteLog("WINMM: handler buf %X done\n", whdr);
651	#endif
652	whdr->dwFlags &= ~WHDR_INQUEUE;
653
654	if(prevhdr == NULL)
655	wavehdr = whdr->lpNext;
656	else prevhdr->lpNext = whdr->lpNext;
657
658	whdr->lpNext = NULL;
659	wmutex->leave();
660
661	if(mthdCallback) {
662	callback((ULONG)this, WOM_DONE, dwInstance, whdr->dwUser, (ULONG)whdr);
663	}
664	else
665	if(hwndCallback)
666	PostMessageA(hwndCallback, WOM_DONE, whdr->dwUser, (ULONG)whdr);
667
668	wmutex->enter(VMUTEX_WAIT_FOREVER);
669	}
670	prevhdr = whdr;
671	whdr = whdr->lpNext;
672	}
673
674	if(curhdr == NULL)
675	curhdr = wavehdr;
676
677	#ifdef DEBUG1
678	WriteLog("WINMM: handler cur (%d,%d), fill (%d,%d)\n", curPlayBuf, curPlayPos, curFillBuf, curFillPos);
679	#endif
680
681	while(curhdr) {
682	buflength = min((ULONG)MixBuffer[curFillBuf].ulBufferLength - curPlayPos,
683	(ULONG)curhdr->dwBufferLength - curFillPos);
684	memcpy((char *)MixBuffer[curFillBuf].pBuffer + curPlayPos,
685	curhdr->lpData + curFillPos,
686	buflength);
687	curPlayPos += buflength;
688	curFillPos += buflength;
689	#ifdef DEBUG1
690	WriteLog("WINMM: copied %d bytes, cufFillPos = %d, dwBufferLength = %d\n", buflength, curFillPos, curhdr->dwBufferLength);
691	#endif
692	if(curFillPos == curhdr->dwBufferLength) {
693	#ifdef DEBUG1
694	WriteLog("Buffer %d done\n", curFillBuf);
695	#endif
696	curFillPos = 0;
697	curhdr->dwFlags \|= WHDR_DONE;
698	//search for next unprocessed buffer
699	while(curhdr && curhdr->dwFlags & WHDR_DONE)
700	curhdr = curhdr->lpNext;
701	}
702	if(curPlayPos == MixBuffer[curFillBuf].ulBufferLength) {
703	curPlayPos = 0;
704	if(++curFillBuf == PREFILLBUF_DART) {
705	curFillBuf = 0;
706	}
707	if(curFillBuf == curPlayBuf)
708	break; //no more room left
709	}
710	}
711
712	if(curPlayBuf == PREFILLBUF_DART-1)
713	curPlayBuf = 0;
714	else curPlayBuf++;
715
716	wmutex->leave();
717	//Transfer buffer to DART
718	MixSetupParms->pmixWrite(MixSetupParms->ulMixHandle, &MixBuffer[curPlayBuf], 1);
719	}
720	/******************************************************************************/
721	/******************************************************************************/
722	LONG APIENTRY WaveOutHandler(ULONG ulStatus,
723	PMCI_MIX_BUFFER pBuffer,
724	ULONG ulFlags)
725	{
726	// PTIB ptib;
727	// PPIB ppib;
728	// DosGetInfoBlocks(&ptib, &ppib);
729	// dprintf(("WaveOutHandler: thread %d prio %X", ptib->tib_ptib2->tib2_ultid, ptib->tib_ptib2->tib2_ulpri));
730
731	DartWaveOut *dwave;
732
733	if(pBuffer && pBuffer->ulUserParm)
734	{
735	dwave = (DartWaveOut *)pBuffer->ulUserParm;
736	dwave->handler(ulStatus, pBuffer, ulFlags);
737	}
738	return(TRUE);
739	}
740
741	/******************************************************************************/
742	/******************************************************************************/
743	MMRESULT DartWaveOut::setVolume(ULONG ulVol)
744	{
745	ULONG ulVolR = (((ulVol & 0xffff0000) >> 16 )*100)/0xFFFF; // Right Volume
746	ULONG ulVolL = ((ulVol& 0x0000ffff)*100)/0xFFFF; // Left Volume
747	MCI_SET_PARMS msp = {0};
748
749	volume = ulVol;
750
751	// PD: My card (ESS 1868 PnP) driver can't change only
752	// one channel Left or Right :-(
753	//
754	#ifdef GOOD_AUDIO_CARD_DRIVER
755
756	msp.ulAudio = MCI_SET_AUDIO_LEFT;
757	msp.ulLevel = ulVolL;
758
759	mciSendCommand(DeviceId, MCI_SET,
760	MCI_WAIT \| MCI_SET_AUDIO \| MCI_SET_VOLUME,
761	&msp, 0);
762
763	msp.ulAudio = MCI_SET_AUDIO_RIGHT;
764	msp.ulLevel = ulVolR;
765
766	#else
767	msp.ulAudio = MCI_SET_AUDIO_ALL;
768	msp.ulLevel = max(ulVolR,ulVolL);
769	#endif
770
771	mciSendCommand(DeviceId, MCI_SET,
772	MCI_WAIT \| MCI_SET_AUDIO \| MCI_SET_VOLUME,
773	&msp, 0);
774	return 0;
775	}
776	/******************************************************************************/
777	/******************************************************************************/
778	DartWaveOut *DartWaveOut::waveout = NULL;
779

Note: See TracBrowser for help on using the repository browser.

Download in other formats: