dsoundaudio.c@ 4071

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

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source: vbox/trunk/src/VBox/Devices/Audio/dsoundaudio.c@ 4071

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