dsoundaudio.c@ 52302

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Devices/Audio/dsoundaudio.c: integrated contribution by Ivo Smits, for configuring a specific DirectSound output/input device
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1	/*
2	* QEMU DirectSound audio driver
3	*
4	* Copyright (c) 2005 Vassili Karpov (malc)
5	*
6	* Permission is hereby granted, free of charge, to any person obtaining a copy
7	* of this software and associated documentation files (the "Software"), to deal
8	* in the Software without restriction, including without limitation the rights
9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10	* copies of the Software, and to permit persons to whom the Software is
11	* furnished to do so, subject to the following conditions:
12	*
13	* The above copyright notice and this permission notice shall be included in
14	* all copies or substantial portions of the Software.
15	*
16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22	* THE SOFTWARE.
23	*/
24
25	/*
26	* SEAL 1.07 by Carlos 'pel' Hasan was used as documentation
27	*/
28
29	#define LOG_GROUP LOG_GROUP_DEV_AUDIO
30	#define _WIN32_DCOM
31	#include <windows.h>
32	#include <objbase.h>
33	#include <dsound.h>
34
35	#include "VBoxDD.h"
36	#include "vl_vbox.h"
37	#include "audio.h"
38	#include <iprt/alloc.h>
39	#include <iprt/uuid.h>
40	#include <VBox/log.h>
41
42
43	#define AUDIO_CAP "dsound"
44	#include "audio_int.h"
45
46	/* #define DEBUG_DSOUND */
47
48	static struct {
49	int lock_retries;
50	int restore_retries;
51	int getstatus_retries;
52	int set_primary;
53	int bufsize_in;
54	int bufsize_out;
55	audsettings_t settings;
56	int latency_millis;
57	char *device_guid_out;
58	char *device_guid_in;
59	} conf = {
60	1,
61	1,
62	1,
63	0,
64	16384,
65	16384,
66	{
67	44100,
68	2,
69	AUD_FMT_S16
70	},
71	10,
72	NULL,
73	NULL
74	};
75
76	typedef struct {
77	LPDIRECTSOUND dsound;
78	LPDIRECTSOUNDCAPTURE dsound_capture;
79	LPDIRECTSOUNDBUFFER dsound_primary_buffer;
80	audsettings_t settings;
81	} dsound;
82
83	static dsound glob_dsound;
84
85	typedef struct {
86	HWVoiceOut hw;
87	LPDIRECTSOUNDBUFFER dsound_buffer;
88	DWORD old_pos;
89	int first_time;
90	#ifdef DEBUG_DSOUND
91	DWORD old_ppos;
92	DWORD played;
93	DWORD mixed;
94	#endif
95	} DSoundVoiceOut;
96
97	typedef struct {
98	HWVoiceIn hw;
99	int first_time;
100	LPDIRECTSOUNDCAPTUREBUFFER dsound_capture_buffer;
101	} DSoundVoiceIn;
102
103	static void dsound_log_hresult (HRESULT hr)
104	{
105	const char *str = "BUG";
106
107	switch (hr) {
108	case DS_OK:
109	str = "The method succeeded";
110	break;
111	#ifdef DS_NO_VIRTUALIZATION
112	case DS_NO_VIRTUALIZATION:
113	str = "The buffer was created, but another 3D algorithm was substituted";
114	break;
115	#endif
116	#ifdef DS_INCOMPLETE
117	case DS_INCOMPLETE:
118	str = "The method succeeded, but not all the optional effects were obtained";
119	break;
120	#endif
121	#ifdef DSERR_ACCESSDENIED
122	case DSERR_ACCESSDENIED:
123	str = "The request failed because access was denied";
124	break;
125	#endif
126	#ifdef DSERR_ALLOCATED
127	case DSERR_ALLOCATED:
128	str = "The request failed because resources, such as a priority level, were already in use by another caller";
129	break;
130	#endif
131	#ifdef DSERR_ALREADYINITIALIZED
132	case DSERR_ALREADYINITIALIZED:
133	str = "The object is already initialized";
134	break;
135	#endif
136	#ifdef DSERR_BADFORMAT
137	case DSERR_BADFORMAT:
138	str = "The specified wave format is not supported";
139	break;
140	#endif
141	#ifdef DSERR_BADSENDBUFFERGUID
142	case DSERR_BADSENDBUFFERGUID:
143	str = "The GUID specified in an audiopath file does not match a valid mix-in buffer";
144	break;
145	#endif
146	#ifdef DSERR_BUFFERLOST
147	case DSERR_BUFFERLOST:
148	str = "The buffer memory has been lost and must be restored";
149	break;
150	#endif
151	#ifdef DSERR_BUFFERTOOSMALL
152	case DSERR_BUFFERTOOSMALL:
153	str = "The buffer size is not great enough to enable effects processing";
154	break;
155	#endif
156	#ifdef DSERR_CONTROLUNAVAIL
157	case DSERR_CONTROLUNAVAIL:
158	str = "The buffer control (volume, pan, and so on) requested by the caller is not available. Controls must be specified when the buffer is created, using the dwFlags member of DSBUFFERDESC";
159	break;
160	#endif
161	#ifdef DSERR_DS8_REQUIRED
162	case DSERR_DS8_REQUIRED:
163	str = "A DirectSound object of class CLSID_DirectSound8 or later is required for the requested functionality. For more information, see IDirectSound8 Interface";
164	break;
165	#endif
166	#ifdef DSERR_FXUNAVAILABLE
167	case DSERR_FXUNAVAILABLE:
168	str = "The effects requested could not be found on the system, or they are in the wrong order or in the wrong location; for example, an effect expected in hardware was found in software";
169	break;
170	#endif
171	#ifdef DSERR_GENERIC
172	case DSERR_GENERIC :
173	str = "An undetermined error occurred inside the DirectSound subsystem";
174	break;
175	#endif
176	#ifdef DSERR_INVALIDCALL
177	case DSERR_INVALIDCALL:
178	str = "This function is not valid for the current state of this object";
179	break;
180	#endif
181	#ifdef DSERR_INVALIDPARAM
182	case DSERR_INVALIDPARAM:
183	str = "An invalid parameter was passed to the returning function";
184	break;
185	#endif
186	#ifdef DSERR_NOAGGREGATION
187	case DSERR_NOAGGREGATION:
188	str = "The object does not support aggregation";
189	break;
190	#endif
191	#ifdef DSERR_NODRIVER
192	case DSERR_NODRIVER:
193	str = "No sound driver is available for use, or the given GUID is not a valid DirectSound device ID";
194	break;
195	#endif
196	#ifdef DSERR_NOINTERFACE
197	case DSERR_NOINTERFACE:
198	str = "The requested COM interface is not available";
199	break;
200	#endif
201	#ifdef DSERR_OBJECTNOTFOUND
202	case DSERR_OBJECTNOTFOUND:
203	str = "The requested object was not found";
204	break;
205	#endif
206	#ifdef DSERR_OTHERAPPHASPRIO
207	case DSERR_OTHERAPPHASPRIO:
208	str = "Another application has a higher priority level, preventing this call from succeeding";
209	break;
210	#endif
211	#ifdef DSERR_OUTOFMEMORY
212	case DSERR_OUTOFMEMORY:
213	str = "The DirectSound subsystem could not allocate sufficient memory to complete the caller's request";
214	break;
215	#endif
216	#ifdef DSERR_PRIOLEVELNEEDED
217	case DSERR_PRIOLEVELNEEDED:
218	str = "A cooperative level of DSSCL_PRIORITY or higher is required";
219	break;
220	#endif
221	#ifdef DSERR_SENDLOOP
222	case DSERR_SENDLOOP:
223	str = "A circular loop of send effects was detected";
224	break;
225	#endif
226	#ifdef DSERR_UNINITIALIZED
227	case DSERR_UNINITIALIZED:
228	str = "The Initialize method has not been called or has not been called successfully before other methods were called";
229	break;
230	#endif
231	#ifdef DSERR_UNSUPPORTED
232	case DSERR_UNSUPPORTED:
233	str = "The function called is not supported at this time";
234	break;
235	#endif
236	default:
237	AUD_log (AUDIO_CAP, "Reason: Unknown (HRESULT %#lx)\n", hr);
238	return;
239	}
240
241	AUD_log (AUDIO_CAP, "Reason: %s\n", str);
242	}
243
244	static void GCC_FMT_ATTR (2, 3) dsound_logerr (
245	HRESULT hr,
246	const char *fmt,
247	...
248	)
249	{
250	va_list ap;
251
252	va_start (ap, fmt);
253	AUD_vlog (AUDIO_CAP, fmt, ap);
254	va_end (ap);
255
256	dsound_log_hresult (hr);
257	}
258
259	static void GCC_FMT_ATTR (3, 4) dsound_logerr2 (
260	HRESULT hr,
261	const char *typ,
262	const char *fmt,
263	...
264	)
265	{
266	va_list ap;
267
268	AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ);
269	va_start (ap, fmt);
270	AUD_vlog (AUDIO_CAP, fmt, ap);
271	va_end (ap);
272
273	dsound_log_hresult (hr);
274	}
275
276	static DWORD millis_to_bytes (struct audio_pcm_info *info, DWORD millis)
277	{
278	return (millis * info->bytes_per_second) / 1000;
279	}
280
281	#ifdef DEBUG_DSOUND
282	static void print_wave_format (WAVEFORMATEX *wfx)
283	{
284	dolog ("tag = %d\n", wfx->wFormatTag);
285	dolog ("nChannels = %d\n", wfx->nChannels);
286	dolog ("nSamplesPerSec = %ld\n", wfx->nSamplesPerSec);
287	dolog ("nAvgBytesPerSec = %ld\n", wfx->nAvgBytesPerSec);
288	dolog ("nBlockAlign = %d\n", wfx->nBlockAlign);
289	dolog ("wBitsPerSample = %d\n", wfx->wBitsPerSample);
290	dolog ("cbSize = %d\n", wfx->cbSize);
291	}
292	#endif
293
294	static int dsound_restore_out (LPDIRECTSOUNDBUFFER dsb)
295	{
296	HRESULT hr;
297	int i;
298
299	for (i = 0; i < conf.restore_retries; ++i) {
300	hr = IDirectSoundBuffer_Restore (dsb);
301
302	switch (hr) {
303	case DS_OK:
304	return 0;
305
306	case DSERR_BUFFERLOST:
307	continue;
308
309	default:
310	dsound_logerr (hr, "Could not restore playback buffer\n");
311	return -1;
312	}
313	}
314
315	dolog ("%d attempts to restore playback buffer failed\n", i);
316	return -1;
317	}
318
319	static int waveformat_from_audio_settings (WAVEFORMATEX wfx, audsettings_t as)
320	{
321	memset (wfx, 0, sizeof (*wfx));
322
323	wfx->wFormatTag = WAVE_FORMAT_PCM;
324	wfx->nChannels = as->nchannels;
325	wfx->nSamplesPerSec = as->freq;
326	wfx->nAvgBytesPerSec = as->freq << (as->nchannels == 2);
327	wfx->nBlockAlign = 1 << (as->nchannels == 2);
328	wfx->cbSize = 0;
329
330	switch (as->fmt) {
331	case AUD_FMT_S8:
332	case AUD_FMT_U8:
333	wfx->wBitsPerSample = 8;
334	break;
335
336	case AUD_FMT_S16:
337	case AUD_FMT_U16:
338	wfx->wBitsPerSample = 16;
339	wfx->nAvgBytesPerSec <<= 1;
340	wfx->nBlockAlign <<= 1;
341	break;
342
343	case AUD_FMT_S32:
344	case AUD_FMT_U32:
345	wfx->wBitsPerSample = 32;
346	wfx->nAvgBytesPerSec <<= 2;
347	wfx->nBlockAlign <<= 2;
348	break;
349
350	default:
351	dolog ("Internal logic error: Bad audio format %d\n", as->freq);
352	return -1;
353	}
354
355	return 0;
356	}
357
358	static int waveformat_to_audio_settings (WAVEFORMATEX wfx, audsettings_t as)
359	{
360	if (wfx->wFormatTag != WAVE_FORMAT_PCM) {
361	dolog ("Invalid wave format, tag is not PCM, but %d\n",
362	wfx->wFormatTag);
363	return -1;
364	}
365
366	if (!wfx->nSamplesPerSec) {
367	dolog ("Invalid wave format, frequency is zero\n");
368	return -1;
369	}
370	as->freq = wfx->nSamplesPerSec;
371
372	switch (wfx->nChannels) {
373	case 1:
374	as->nchannels = 1;
375	break;
376
377	case 2:
378	as->nchannels = 2;
379	break;
380
381	default:
382	dolog (
383	"Invalid wave format, number of channels is not 1 or 2, but %d\n",
384	wfx->nChannels
385	);
386	return -1;
387	}
388
389	switch (wfx->wBitsPerSample) {
390	case 8:
391	as->fmt = AUD_FMT_U8;
392	break;
393
394	case 16:
395	as->fmt = AUD_FMT_S16;
396	break;
397
398	case 32:
399	as->fmt = AUD_FMT_S32;
400	break;
401
402	default:
403	dolog ("Invalid wave format, bits per sample is not "
404	"8, 16 or 32, but %d\n",
405	wfx->wBitsPerSample);
406	return -1;
407	}
408
409	return 0;
410	}
411
412	#include "dsound_template.h"
413	#define DSBTYPE_IN
414	#include "dsound_template.h"
415	#undef DSBTYPE_IN
416
417	static int dsound_get_status_out (LPDIRECTSOUNDBUFFER dsb, DWORD *statusp)
418	{
419	HRESULT hr;
420	int i;
421
422	for (i = 0; i < conf.getstatus_retries; ++i) {
423	hr = IDirectSoundBuffer_GetStatus (dsb, statusp);
424	if (FAILED (hr)) {
425	dsound_logerr (hr, "Could not get playback buffer status\n");
426	return -1;
427	}
428
429	if (*statusp & DSERR_BUFFERLOST) {
430	if (dsound_restore_out (dsb)) {
431	return -1;
432	}
433	continue;
434	}
435	break;
436	}
437
438	return 0;
439	}
440
441	static int dsound_get_status_in (LPDIRECTSOUNDCAPTUREBUFFER dscb,
442	DWORD *statusp)
443	{
444	HRESULT hr;
445
446	hr = IDirectSoundCaptureBuffer_GetStatus (dscb, statusp);
447	if (FAILED (hr)) {
448	dsound_logerr (hr, "Could not get capture buffer status\n");
449	return -1;
450	}
451
452	return 0;
453	}
454
455	static void dsound_write_sample (HWVoiceOut hw, uint8_t dst, int dst_len)
456	{
457	int src_len1 = dst_len;
458	int src_len2 = 0;
459	int pos = hw->rpos + dst_len;
460	st_sample_t *src1 = hw->mix_buf + hw->rpos;
461	st_sample_t *src2 = NULL;
462
463	if (pos > hw->samples) {
464	src_len1 = hw->samples - hw->rpos;
465	src2 = hw->mix_buf;
466	src_len2 = dst_len - src_len1;
467	pos = src_len2;
468	}
469
470	if (src_len1) {
471	hw->clip (dst, src1, src_len1);
472	// mixeng_sniff_and_clear (hw, src1, dst, src_len1);
473	}
474
475	if (src_len2) {
476	dst = advance (dst, src_len1 << hw->info.shift);
477	hw->clip (dst, src2, src_len2);
478	// mixeng_sniff_and_clear (hw, src2, dst, src_len2);
479	}
480
481	hw->rpos = pos % hw->samples;
482	}
483
484	static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb)
485	{
486	int err;
487	LPVOID p1, p2;
488	DWORD blen1, blen2, len1, len2;
489
490	err = dsound_lock_out (
491	dsb,
492	&hw->info,
493	0,
494	hw->samples << hw->info.shift,
495	&p1, &p2,
496	&blen1, &blen2,
497	1
498	);
499	if (err) {
500	return;
501	}
502
503	len1 = blen1 >> hw->info.shift;
504	len2 = blen2 >> hw->info.shift;
505
506	#ifdef DEBUG_DSOUND
507	dolog ("clear %p,%ld,%ld %p,%ld,%ld\n",
508	p1, blen1, len1,
509	p2, blen2, len2);
510	#endif
511
512	if (p1 && len1) {
513	audio_pcm_info_clear_buf (&hw->info, p1, len1);
514	}
515
516	if (p2 && len2) {
517	audio_pcm_info_clear_buf (&hw->info, p2, len2);
518	}
519
520	dsound_unlock_out (dsb, p1, p2, blen1, blen2);
521	}
522
523	static void dsound_close (dsound *s)
524	{
525	HRESULT hr;
526
527	if (s->dsound_primary_buffer) {
528	hr = IDirectSoundBuffer_Release (s->dsound_primary_buffer);
529	if (FAILED (hr)) {
530	dsound_logerr (hr, "Could not release primary buffer\n");
531	}
532	s->dsound_primary_buffer = NULL;
533	}
534	}
535
536	static int dsound_open (dsound *s)
537	{
538	int err;
539	HRESULT hr;
540	WAVEFORMATEX wfx;
541	DSBUFFERDESC dsbd;
542	HWND hwnd;
543
544	hwnd = GetForegroundWindow ();
545	hr = IDirectSound_SetCooperativeLevel (
546	s->dsound,
547	hwnd,
548	DSSCL_PRIORITY
549	);
550
551	if (FAILED (hr)) {
552	#ifndef VBOX
553	dsound_logerr (hr, "Could not set cooperative level for window %p\n",
554	hwnd);
555	#else
556	LogRel(("DSound: Could not set cooperative level for window %p\n", hwnd));
557	dsound_log_hresult(hr);
558	#endif
559	return -1;
560	}
561
562	if (!conf.set_primary) {
563	return 0;
564	}
565
566	err = waveformat_from_audio_settings (&wfx, &conf.settings);
567	if (err) {
568	return -1;
569	}
570
571	memset (&dsbd, 0, sizeof (dsbd));
572	dsbd.dwSize = sizeof (dsbd);
573	dsbd.dwFlags = DSBCAPS_PRIMARYBUFFER;
574	dsbd.dwBufferBytes = 0;
575	dsbd.lpwfxFormat = NULL;
576
577	hr = IDirectSound_CreateSoundBuffer (
578	s->dsound,
579	&dsbd,
580	&s->dsound_primary_buffer,
581	NULL
582	);
583	if (FAILED (hr)) {
584	#ifndef VBOX
585	dsound_logerr (hr, "Could not create primary playback buffer\n");
586	#else
587	LogRel(("DSound: Could not create primary playback buffer\n"));
588	dsound_log_hresult(hr);
589	#endif
590	return -1;
591	}
592
593	hr = IDirectSoundBuffer_SetFormat (s->dsound_primary_buffer, &wfx);
594	if (FAILED (hr)) {
595	#ifndef VBOX
596	dsound_logerr (hr, "Could not set primary playback buffer format\n");
597	#else
598	LogRel(("DSound: Could not set primary playback buffer format\n"));
599	dsound_log_hresult(hr);
600	#endif
601	}
602
603	hr = IDirectSoundBuffer_GetFormat (
604	s->dsound_primary_buffer,
605	&wfx,
606	sizeof (wfx),
607	NULL
608	);
609	if (FAILED (hr)) {
610	#ifndef VBOX
611	dsound_logerr (hr, "Could not get primary playback buffer format\n");
612	#else
613	LogRel(("DSound: Could not get primary playback buffer format\n"));
614	dsound_log_hresult(hr);
615	#endif
616	goto fail0;
617	}
618
619	#ifdef DEBUG_DSOUND
620	dolog ("Primary\n");
621	print_wave_format (&wfx);
622	#endif
623
624	err = waveformat_to_audio_settings (&wfx, &s->settings);
625	if (err) {
626	goto fail0;
627	}
628
629	return 0;
630
631	fail0:
632	dsound_close (s);
633	return -1;
634	}
635
636	static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...)
637	{
638	HRESULT hr;
639	DWORD status;
640	DSoundVoiceOut ds = (DSoundVoiceOut ) hw;
641	LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer;
642
643	if (!dsb) {
644	dolog ("Attempt to control voice without a buffer\n");
645	return 0;
646	}
647
648	switch (cmd) {
649	case VOICE_ENABLE:
650	if (dsound_get_status_out (dsb, &status)) {
651	return -1;
652	}
653
654	if (status & DSBSTATUS_PLAYING) {
655	dolog ("warning: Voice is already playing\n");
656	return 0;
657	}
658
659	dsound_clear_sample (hw, dsb);
660
661	hr = IDirectSoundBuffer_Play (dsb, 0, 0, DSBPLAY_LOOPING);
662	if (FAILED (hr)) {
663	dsound_logerr (hr, "Could not start playing buffer\n");
664	return -1;
665	}
666	break;
667
668	case VOICE_DISABLE:
669	if (dsound_get_status_out (dsb, &status)) {
670	return -1;
671	}
672
673	if (status & DSBSTATUS_PLAYING) {
674	hr = IDirectSoundBuffer_Stop (dsb);
675	if (FAILED (hr)) {
676	dsound_logerr (hr, "Could not stop playing buffer\n");
677	return -1;
678	}
679	}
680	else {
681	dolog ("warning: Voice is not playing\n");
682	}
683	break;
684	}
685	return 0;
686	}
687
688	static int dsound_write (SWVoiceOut sw, void buf, int len)
689	{
690	return audio_pcm_sw_write (sw, buf, len);
691	}
692
693	static int dsound_run_out (HWVoiceOut *hw)
694	{
695	int err;
696	HRESULT hr;
697	DSoundVoiceOut ds = (DSoundVoiceOut ) hw;
698	LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer;
699	int live, len, hwshift;
700	DWORD blen1, blen2;
701	DWORD len1, len2;
702	DWORD decr;
703	DWORD wpos, ppos, old_pos;
704	LPVOID p1, p2;
705	int bufsize;
706
707	if (!dsb) {
708	dolog ("Attempt to run empty with playback buffer\n");
709	return 0;
710	}
711
712	hwshift = hw->info.shift;
713	bufsize = hw->samples << hwshift;
714
715	live = audio_pcm_hw_get_live_out (hw);
716
717	hr = IDirectSoundBuffer_GetCurrentPosition (
718	dsb,
719	&ppos,
720	ds->first_time ? &wpos : NULL
721	);
722	if (hr == DSERR_BUFFERLOST) {
723	if (dsound_restore_out(dsb))
724	return 0;
725	hr = IDirectSoundBuffer_GetCurrentPosition(dsb, &ppos, ds->first_time ? &wpos : NULL);
726	if (hr == DSERR_BUFFERLOST)
727	return 0; // Avoid log flooding if the error is still there.
728	}
729	if (FAILED (hr)) {
730	dsound_logerr (hr, "Could not get playback buffer position\n");
731	return 0;
732	}
733
734	len = live << hwshift;
735
736	if (ds->first_time) {
737	if (conf.latency_millis) {
738	DWORD cur_blat;
739
740	cur_blat = audio_ring_dist (wpos, ppos, bufsize);
741	ds->first_time = 0;
742	old_pos = wpos;
743	old_pos +=
744	millis_to_bytes (&hw->info, conf.latency_millis) - cur_blat;
745	old_pos %= bufsize;
746	old_pos &= ~hw->info.align;
747	}
748	else {
749	old_pos = wpos;
750	}
751	#ifdef DEBUG_DSOUND
752	ds->played = 0;
753	ds->mixed = 0;
754	#endif
755	}
756	else {
757	if (ds->old_pos == ppos) {
758	#ifdef DEBUG_DSOUND
759	dolog ("old_pos == ppos\n");
760	#endif
761	return 0;
762	}
763
764	#ifdef DEBUG_DSOUND
765	ds->played += audio_ring_dist (ds->old_pos, ppos, bufsize);
766	#endif
767	old_pos = ds->old_pos;
768	}
769
770	if ((old_pos < ppos) && ((old_pos + len) > ppos)) {
771	len = ppos - old_pos;
772	}
773	else {
774	if ((old_pos > ppos) && ((old_pos + len) > (ppos + bufsize))) {
775	len = bufsize - old_pos + ppos;
776	}
777	}
778
779	if (audio_bug (AUDIO_FUNC, len < 0 \|\| len > bufsize)) {
780	dolog ("len=%d bufsize=%d old_pos=%ld ppos=%ld\n",
781	len, bufsize, old_pos, ppos);
782	return 0;
783	}
784
785	len &= ~hw->info.align;
786	if (!len) {
787	return 0;
788	}
789
790	#ifdef DEBUG_DSOUND
791	ds->old_ppos = ppos;
792	#endif
793	err = dsound_lock_out (
794	dsb,
795	&hw->info,
796	old_pos,
797	len,
798	&p1, &p2,
799	&blen1, &blen2,
800	0
801	);
802	if (err) {
803	return 0;
804	}
805
806	len1 = blen1 >> hwshift;
807	len2 = blen2 >> hwshift;
808	decr = len1 + len2;
809
810	if (p1 && len1) {
811	dsound_write_sample (hw, p1, len1);
812	}
813
814	if (p2 && len2) {
815	dsound_write_sample (hw, p2, len2);
816	}
817
818	dsound_unlock_out (dsb, p1, p2, blen1, blen2);
819	ds->old_pos = (old_pos + (decr << hwshift)) % bufsize;
820
821	#ifdef DEBUG_DSOUND
822	ds->mixed += decr << hwshift;
823
824	dolog ("played %lu mixed %lu diff %ld sec %f\n",
825	ds->played,
826	ds->mixed,
827	ds->mixed - ds->played,
828	abs (ds->mixed - ds->played) / (double) hw->info.bytes_per_second);
829	#endif
830	return decr;
831	}
832
833	static int dsound_ctl_in (HWVoiceIn *hw, int cmd, ...)
834	{
835	HRESULT hr;
836	DWORD status;
837	DSoundVoiceIn ds = (DSoundVoiceIn ) hw;
838	LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer;
839
840	if (!dscb) {
841	dolog ("Attempt to control capture voice without a buffer\n");
842	return -1;
843	}
844
845	switch (cmd) {
846	case VOICE_ENABLE:
847	if (dsound_get_status_in (dscb, &status)) {
848	return -1;
849	}
850
851	if (status & DSCBSTATUS_CAPTURING) {
852	dolog ("warning: Voice is already capturing\n");
853	return 0;
854	}
855
856	/* clear ?? */
857
858	hr = IDirectSoundCaptureBuffer_Start (dscb, DSCBSTART_LOOPING);
859	if (FAILED (hr)) {
860	dsound_logerr (hr, "Could not start capturing\n");
861	return -1;
862	}
863	break;
864
865	case VOICE_DISABLE:
866	if (dsound_get_status_in (dscb, &status)) {
867	return -1;
868	}
869
870	if (status & DSCBSTATUS_CAPTURING) {
871	hr = IDirectSoundCaptureBuffer_Stop (dscb);
872	if (FAILED (hr)) {
873	dsound_logerr (hr, "Could not stop capturing\n");
874	return -1;
875	}
876	}
877	else {
878	dolog ("warning: Voice is not capturing\n");
879	}
880	break;
881	}
882	return 0;
883	}
884
885	static int dsound_read (SWVoiceIn sw, void buf, int len)
886	{
887	return audio_pcm_sw_read (sw, buf, len);
888	}
889
890	static int dsound_run_in (HWVoiceIn *hw)
891	{
892	int err;
893	HRESULT hr;
894	DSoundVoiceIn ds = (DSoundVoiceIn ) hw;
895	LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer;
896	int live, len, dead;
897	DWORD blen1, blen2;
898	DWORD len1, len2;
899	DWORD decr;
900	DWORD cpos, rpos;
901	LPVOID p1, p2;
902	int hwshift;
903
904	if (!dscb) {
905	dolog ("Attempt to run without capture buffer\n");
906	return 0;
907	}
908
909	hwshift = hw->info.shift;
910
911	live = audio_pcm_hw_get_live_in (hw);
912	dead = hw->samples - live;
913	if (!dead) {
914	return 0;
915	}
916
917	hr = IDirectSoundCaptureBuffer_GetCurrentPosition (
918	dscb,
919	&cpos,
920	ds->first_time ? &rpos : NULL
921	);
922	if (FAILED (hr)) {
923	dsound_logerr (hr, "Could not get capture buffer position\n");
924	return 0;
925	}
926
927	if (ds->first_time) {
928	ds->first_time = 0;
929	if (rpos & hw->info.align) {
930	ldebug ("warning: Misaligned capture read position %ld(%d)\n",
931	rpos, hw->info.align);
932	}
933	hw->wpos = rpos >> hwshift;
934	}
935
936	if (cpos & hw->info.align) {
937	ldebug ("warning: Misaligned capture position %ld(%d)\n",
938	cpos, hw->info.align);
939	}
940	cpos >>= hwshift;
941
942	len = audio_ring_dist (cpos, hw->wpos, hw->samples);
943	if (!len) {
944	return 0;
945	}
946	len = audio_MIN (len, dead);
947
948	err = dsound_lock_in (
949	dscb,
950	&hw->info,
951	hw->wpos << hwshift,
952	len << hwshift,
953	&p1,
954	&p2,
955	&blen1,
956	&blen2,
957	0
958	);
959	if (err) {
960	return 0;
961	}
962
963	len1 = blen1 >> hwshift;
964	len2 = blen2 >> hwshift;
965	decr = len1 + len2;
966
967	#ifndef VBOX
968	if (p1 && len1) {
969	hw->conv (hw->conv_buf + hw->wpos, p1, len1, &nominal_volume);
970	}
971
972	if (p2 && len2) {
973	hw->conv (hw->conv_buf, p2, len2, &nominal_volume);
974	}
975	#else
976	if (p1 && len1) {
977	hw->conv (hw->conv_buf + hw->wpos, p1, len1, &pcm_in_volume);
978	}
979
980	if (p2 && len2) {
981	hw->conv (hw->conv_buf, p2, len2, &pcm_in_volume);
982	}
983	#endif
984
985	dsound_unlock_in (dscb, p1, p2, blen1, blen2);
986	hw->wpos = (hw->wpos + decr) % hw->samples;
987	return decr;
988	}
989
990	static void dsound_audio_fini (void *opaque)
991	{
992	HRESULT hr;
993	dsound *s = opaque;
994
995	if (!s->dsound) {
996	goto dsound_audio_fini_exit;
997	}
998
999	hr = IDirectSound_Release (s->dsound);
1000	if (FAILED (hr)) {
1001	dsound_logerr (hr, "Could not release DirectSound\n");
1002	}
1003	s->dsound = NULL;
1004
1005	if (!s->dsound_capture) {
1006	goto dsound_audio_fini_exit;
1007	}
1008
1009	hr = IDirectSoundCapture_Release (s->dsound_capture);
1010	if (FAILED (hr)) {
1011	dsound_logerr (hr, "Could not release DirectSoundCapture\n");
1012	}
1013	s->dsound_capture = NULL;
1014
1015	dsound_audio_fini_exit:
1016	CoUninitialize();
1017	}
1018
1019	static void *dsound_audio_init (void)
1020	{
1021	int err;
1022	HRESULT hr;
1023	dsound *s = &glob_dsound;
1024	RTUUID devguid;
1025	LPCGUID devguidp;
1026
1027	hr = CoInitializeEx (NULL, COINIT_MULTITHREADED);
1028	if (FAILED (hr)) {
1029	#ifndef VBOX
1030	dsound_logerr (hr, "Could not initialize COM\n");
1031	#else
1032	LogRel(("DSound: Could not initialize COM\n"));
1033	dsound_log_hresult(hr);
1034	#endif
1035	return NULL;
1036	}
1037
1038	hr = CoCreateInstance (
1039	&CLSID_DirectSound,
1040	NULL,
1041	CLSCTX_ALL,
1042	&IID_IDirectSound,
1043	(void **) &s->dsound
1044	);
1045	if (FAILED (hr)) {
1046	#ifndef VBOX
1047	dsound_logerr (hr, "Could not create DirectSound instance\n");
1048	#else
1049	LogRel(("DSound: Could not create DirectSound instance\n"));
1050	dsound_log_hresult(hr);
1051	#endif
1052	CoUninitialize();
1053	return NULL;
1054	}
1055
1056	if (conf.device_guid_out) {
1057	hr = RTUuidFromStr(&devguid, conf.device_guid_out);
1058	if (FAILED (hr)) {
1059	LogRel(("DSound: Could not parse DirectSound output device GUID\n"));
1060	}
1061	devguidp = (LPCGUID)&devguid;
1062	} else {
1063	devguidp = NULL;
1064	}
1065	hr = IDirectSound_Initialize (s->dsound, devguidp);
1066	if (FAILED (hr)) {
1067	#ifndef VBOX
1068	dsound_logerr (hr, "Could not initialize DirectSound\n");
1069	#else
1070	LogRel(("DSound: Could not initialize DirectSound\n"));
1071	dsound_log_hresult(hr);
1072	#endif
1073
1074	hr = IDirectSound_Release (s->dsound);
1075	if (FAILED (hr)) {
1076	dsound_logerr (hr, "Could not release DirectSound\n");
1077	}
1078	s->dsound = NULL;
1079	CoUninitialize();
1080	return NULL;
1081	}
1082
1083	hr = CoCreateInstance (
1084	&CLSID_DirectSoundCapture,
1085	NULL,
1086	CLSCTX_ALL,
1087	&IID_IDirectSoundCapture,
1088	(void **) &s->dsound_capture
1089	);
1090	if (FAILED (hr)) {
1091	#ifndef VBOX
1092	dsound_logerr (hr, "Could not create DirectSoundCapture instance\n");
1093	#else
1094	LogRel(("DSound: Could not create DirectSoundCapture instance\n"));
1095	dsound_log_hresult(hr);
1096	#endif
1097	}
1098	else {
1099	if (conf.device_guid_in) {
1100	hr = RTUuidFromStr(&devguid, conf.device_guid_in);
1101	if (FAILED (hr)) {
1102	LogRel(("DSound: Could not parse DirectSound input device GUID\n"));
1103	}
1104	devguidp = (LPCGUID)&devguid;
1105	} else {
1106	devguidp = NULL;
1107	}
1108	hr = IDirectSoundCapture_Initialize (s->dsound_capture, devguidp);
1109	if (FAILED (hr)) {
1110	#ifndef VBOX
1111	dsound_logerr (hr, "Could not initialize DirectSoundCapture\n");
1112	#else
1113	LogRel(("DSound: Could not initialize DirectSoundCapture\n"));
1114	dsound_log_hresult(hr);
1115	#endif
1116
1117	hr = IDirectSoundCapture_Release (s->dsound_capture);
1118	if (FAILED (hr)) {
1119	dsound_logerr (hr,
1120	"Could not release DirectSoundCapture\n");
1121	}
1122	s->dsound_capture = NULL;
1123	}
1124	}
1125
1126	err = dsound_open (s);
1127	if (err) {
1128	dsound_audio_fini (s);
1129	return NULL;
1130	}
1131
1132	return s;
1133	}
1134
1135	static struct audio_option dsound_options[] = {
1136	{"LockRetries", AUD_OPT_INT, &conf.lock_retries,
1137	"Number of times to attempt locking the buffer", NULL, 0},
1138	{"RestoreRetries", AUD_OPT_INT, &conf.restore_retries,
1139	"Number of times to attempt restoring the buffer", NULL, 0},
1140	{"GetStatusRetries", AUD_OPT_INT, &conf.getstatus_retries,
1141	"Number of times to attempt getting status of the buffer", NULL, 0},
1142	{"SetPrimary", AUD_OPT_BOOL, &conf.set_primary,
1143	"Set the parameters of primary buffer", NULL, 0},
1144	{"LatencyMillis", AUD_OPT_INT, &conf.latency_millis,
1145	"(undocumented)", NULL, 0},
1146	{"PrimaryFreq", AUD_OPT_INT, &conf.settings.freq,
1147	"Primary buffer frequency", NULL, 0},
1148	{"PrimaryChannels", AUD_OPT_INT, &conf.settings.nchannels,
1149	"Primary buffer number of channels (1 - mono, 2 - stereo)", NULL, 0},
1150	{"PrimaryFmt", AUD_OPT_FMT, &conf.settings.fmt,
1151	"Primary buffer format", NULL, 0},
1152	{"BufsizeOut", AUD_OPT_INT, &conf.bufsize_out,
1153	"(undocumented)", NULL, 0},
1154	{"BufsizeIn", AUD_OPT_INT, &conf.bufsize_in,
1155	"(undocumented)", NULL, 0},
1156	{"DeviceGuidOut", AUD_OPT_STR, &conf.device_guid_out,
1157	"DirectSound output device GUID", NULL, 0},
1158	{"DeviceGuidIn", AUD_OPT_STR, &conf.device_guid_in,
1159	"DirectSound input device GUID", NULL, 0},
1160	{NULL, 0, NULL, NULL, NULL, 0}
1161	};
1162
1163	static struct audio_pcm_ops dsound_pcm_ops = {
1164	dsound_init_out,
1165	dsound_fini_out,
1166	dsound_run_out,
1167	dsound_write,
1168	dsound_ctl_out,
1169
1170	dsound_init_in,
1171	dsound_fini_in,
1172	dsound_run_in,
1173	dsound_read,
1174	dsound_ctl_in
1175	};
1176
1177	struct audio_driver dsound_audio_driver = {
1178	INIT_FIELD (name = ) "dsound",
1179	INIT_FIELD (descr = )
1180	"DirectSound http://wikipedia.org/wiki/DirectSound",
1181	INIT_FIELD (options = ) dsound_options,
1182	INIT_FIELD (init = ) dsound_audio_init,
1183	INIT_FIELD (fini = ) dsound_audio_fini,
1184	INIT_FIELD (pcm_ops = ) &dsound_pcm_ops,
1185	INIT_FIELD (can_be_default = ) 1,
1186	INIT_FIELD (max_voices_out = ) INT_MAX,
1187	INIT_FIELD (max_voices_in = ) 1,
1188	INIT_FIELD (voice_size_out = ) sizeof (DSoundVoiceOut),
1189	INIT_FIELD (voice_size_in = ) sizeof (DSoundVoiceIn)
1190	};

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source: vbox/trunk/src/VBox/Devices/Audio/dsoundaudio.c@ 52302

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