dsoundaudio.c@ 40920

最後變更在這個檔案從40920是 40844,由 vboxsync 提交於 13 年前
Devices/Audio: Removal of environment variables which acted as audio configuration parameters . Now the audio configuration parameters can be set through SetExtraData. Also, as the configuration parameters are no longer environment variables, there nomenclature
屬性 svn:eol-style 設為 `native` 屬性 svn:keywords 設為 `Author Date Id Revision`
檔案大小: 28.5 KB

行
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 <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	}
238
239	static void GCC_FMT_ATTR (2, 3) dsound_logerr (
240	HRESULT hr,
241	const char *fmt,
242	...
243	)
244	{
245	va_list ap;
246
247	va_start (ap, fmt);
248	AUD_vlog (AUDIO_CAP, fmt, ap);
249	va_end (ap);
250
251	dsound_log_hresult (hr);
252	}
253
254	static void GCC_FMT_ATTR (3, 4) dsound_logerr2 (
255	HRESULT hr,
256	const char *typ,
257	const char *fmt,
258	...
259	)
260	{
261	va_list ap;
262
263	AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ);
264	va_start (ap, fmt);
265	AUD_vlog (AUDIO_CAP, fmt, ap);
266	va_end (ap);
267
268	dsound_log_hresult (hr);
269	}
270
271	static DWORD millis_to_bytes (struct audio_pcm_info *info, DWORD millis)
272	{
273	return (millis * info->bytes_per_second) / 1000;
274	}
275
276	#ifdef DEBUG_DSOUND
277	static void print_wave_format (WAVEFORMATEX *wfx)
278	{
279	dolog ("tag = %d\n", wfx->wFormatTag);
280	dolog ("nChannels = %d\n", wfx->nChannels);
281	dolog ("nSamplesPerSec = %ld\n", wfx->nSamplesPerSec);
282	dolog ("nAvgBytesPerSec = %ld\n", wfx->nAvgBytesPerSec);
283	dolog ("nBlockAlign = %d\n", wfx->nBlockAlign);
284	dolog ("wBitsPerSample = %d\n", wfx->wBitsPerSample);
285	dolog ("cbSize = %d\n", wfx->cbSize);
286	}
287	#endif
288
289	static int dsound_restore_out (LPDIRECTSOUNDBUFFER dsb)
290	{
291	HRESULT hr;
292	int i;
293
294	for (i = 0; i < conf.restore_retries; ++i) {
295	hr = IDirectSoundBuffer_Restore (dsb);
296
297	switch (hr) {
298	case DS_OK:
299	return 0;
300
301	case DSERR_BUFFERLOST:
302	continue;
303
304	default:
305	dsound_logerr (hr, "Could not restore playback buffer\n");
306	return -1;
307	}
308	}
309
310	dolog ("%d attempts to restore playback buffer failed\n", i);
311	return -1;
312	}
313
314	static int waveformat_from_audio_settings (WAVEFORMATEX wfx, audsettings_t as)
315	{
316	memset (wfx, 0, sizeof (*wfx));
317
318	wfx->wFormatTag = WAVE_FORMAT_PCM;
319	wfx->nChannels = as->nchannels;
320	wfx->nSamplesPerSec = as->freq;
321	wfx->nAvgBytesPerSec = as->freq << (as->nchannels == 2);
322	wfx->nBlockAlign = 1 << (as->nchannels == 2);
323	wfx->cbSize = 0;
324
325	switch (as->fmt) {
326	case AUD_FMT_S8:
327	case AUD_FMT_U8:
328	wfx->wBitsPerSample = 8;
329	break;
330
331	case AUD_FMT_S16:
332	case AUD_FMT_U16:
333	wfx->wBitsPerSample = 16;
334	wfx->nAvgBytesPerSec <<= 1;
335	wfx->nBlockAlign <<= 1;
336	break;
337
338	case AUD_FMT_S32:
339	case AUD_FMT_U32:
340	wfx->wBitsPerSample = 32;
341	wfx->nAvgBytesPerSec <<= 2;
342	wfx->nBlockAlign <<= 2;
343	break;
344
345	default:
346	dolog ("Internal logic error: Bad audio format %d\n", as->freq);
347	return -1;
348	}
349
350	return 0;
351	}
352
353	static int waveformat_to_audio_settings (WAVEFORMATEX wfx, audsettings_t as)
354	{
355	if (wfx->wFormatTag != WAVE_FORMAT_PCM) {
356	dolog ("Invalid wave format, tag is not PCM, but %d\n",
357	wfx->wFormatTag);
358	return -1;
359	}
360
361	if (!wfx->nSamplesPerSec) {
362	dolog ("Invalid wave format, frequency is zero\n");
363	return -1;
364	}
365	as->freq = wfx->nSamplesPerSec;
366
367	switch (wfx->nChannels) {
368	case 1:
369	as->nchannels = 1;
370	break;
371
372	case 2:
373	as->nchannels = 2;
374	break;
375
376	default:
377	dolog (
378	"Invalid wave format, number of channels is not 1 or 2, but %d\n",
379	wfx->nChannels
380	);
381	return -1;
382	}
383
384	switch (wfx->wBitsPerSample) {
385	case 8:
386	as->fmt = AUD_FMT_U8;
387	break;
388
389	case 16:
390	as->fmt = AUD_FMT_S16;
391	break;
392
393	case 32:
394	as->fmt = AUD_FMT_S32;
395	break;
396
397	default:
398	dolog ("Invalid wave format, bits per sample is not "
399	"8, 16 or 32, but %d\n",
400	wfx->wBitsPerSample);
401	return -1;
402	}
403
404	return 0;
405	}
406
407	#include "dsound_template.h"
408	#define DSBTYPE_IN
409	#include "dsound_template.h"
410	#undef DSBTYPE_IN
411
412	static int dsound_get_status_out (LPDIRECTSOUNDBUFFER dsb, DWORD *statusp)
413	{
414	HRESULT hr;
415	int i;
416
417	for (i = 0; i < conf.getstatus_retries; ++i) {
418	hr = IDirectSoundBuffer_GetStatus (dsb, statusp);
419	if (FAILED (hr)) {
420	dsound_logerr (hr, "Could not get playback buffer status\n");
421	return -1;
422	}
423
424	if (*statusp & DSERR_BUFFERLOST) {
425	if (dsound_restore_out (dsb)) {
426	return -1;
427	}
428	continue;
429	}
430	break;
431	}
432
433	return 0;
434	}
435
436	static int dsound_get_status_in (LPDIRECTSOUNDCAPTUREBUFFER dscb,
437	DWORD *statusp)
438	{
439	HRESULT hr;
440
441	hr = IDirectSoundCaptureBuffer_GetStatus (dscb, statusp);
442	if (FAILED (hr)) {
443	dsound_logerr (hr, "Could not get capture buffer status\n");
444	return -1;
445	}
446
447	return 0;
448	}
449
450	static void dsound_write_sample (HWVoiceOut hw, uint8_t dst, int dst_len)
451	{
452	int src_len1 = dst_len;
453	int src_len2 = 0;
454	int pos = hw->rpos + dst_len;
455	st_sample_t *src1 = hw->mix_buf + hw->rpos;
456	st_sample_t *src2 = NULL;
457
458	if (pos > hw->samples) {
459	src_len1 = hw->samples - hw->rpos;
460	src2 = hw->mix_buf;
461	src_len2 = dst_len - src_len1;
462	pos = src_len2;
463	}
464
465	if (src_len1) {
466	hw->clip (dst, src1, src_len1);
467	// mixeng_sniff_and_clear (hw, src1, dst, src_len1);
468	}
469
470	if (src_len2) {
471	dst = advance (dst, src_len1 << hw->info.shift);
472	hw->clip (dst, src2, src_len2);
473	// mixeng_sniff_and_clear (hw, src2, dst, src_len2);
474	}
475
476	hw->rpos = pos % hw->samples;
477	}
478
479	static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb)
480	{
481	int err;
482	LPVOID p1, p2;
483	DWORD blen1, blen2, len1, len2;
484
485	err = dsound_lock_out (
486	dsb,
487	&hw->info,
488	0,
489	hw->samples << hw->info.shift,
490	&p1, &p2,
491	&blen1, &blen2,
492	1
493	);
494	if (err) {
495	return;
496	}
497
498	len1 = blen1 >> hw->info.shift;
499	len2 = blen2 >> hw->info.shift;
500
501	#ifdef DEBUG_DSOUND
502	dolog ("clear %p,%ld,%ld %p,%ld,%ld\n",
503	p1, blen1, len1,
504	p2, blen2, len2);
505	#endif
506
507	if (p1 && len1) {
508	audio_pcm_info_clear_buf (&hw->info, p1, len1);
509	}
510
511	if (p2 && len2) {
512	audio_pcm_info_clear_buf (&hw->info, p2, len2);
513	}
514
515	dsound_unlock_out (dsb, p1, p2, blen1, blen2);
516	}
517
518	static void dsound_close (dsound *s)
519	{
520	HRESULT hr;
521
522	if (s->dsound_primary_buffer) {
523	hr = IDirectSoundBuffer_Release (s->dsound_primary_buffer);
524	if (FAILED (hr)) {
525	dsound_logerr (hr, "Could not release primary buffer\n");
526	}
527	s->dsound_primary_buffer = NULL;
528	}
529	}
530
531	static int dsound_open (dsound *s)
532	{
533	int err;
534	HRESULT hr;
535	WAVEFORMATEX wfx;
536	DSBUFFERDESC dsbd;
537	HWND hwnd;
538
539	hwnd = GetForegroundWindow ();
540	hr = IDirectSound_SetCooperativeLevel (
541	s->dsound,
542	hwnd,
543	DSSCL_PRIORITY
544	);
545
546	if (FAILED (hr)) {
547	#ifndef VBOX
548	dsound_logerr (hr, "Could not set cooperative level for window %p\n",
549	hwnd);
550	#else
551	LogRel(("DSound: Could not set cooperative level for window %p\n", hwnd));
552	dsound_log_hresult(hr);
553	#endif
554	return -1;
555	}
556
557	if (!conf.set_primary) {
558	return 0;
559	}
560
561	err = waveformat_from_audio_settings (&wfx, &conf.settings);
562	if (err) {
563	return -1;
564	}
565
566	memset (&dsbd, 0, sizeof (dsbd));
567	dsbd.dwSize = sizeof (dsbd);
568	dsbd.dwFlags = DSBCAPS_PRIMARYBUFFER;
569	dsbd.dwBufferBytes = 0;
570	dsbd.lpwfxFormat = NULL;
571
572	hr = IDirectSound_CreateSoundBuffer (
573	s->dsound,
574	&dsbd,
575	&s->dsound_primary_buffer,
576	NULL
577	);
578	if (FAILED (hr)) {
579	#ifndef VBOX
580	dsound_logerr (hr, "Could not create primary playback buffer\n");
581	#else
582	LogRel(("DSound: Could not create primary playback buffer\n"));
583	dsound_log_hresult(hr);
584	#endif
585	return -1;
586	}
587
588	hr = IDirectSoundBuffer_SetFormat (s->dsound_primary_buffer, &wfx);
589	if (FAILED (hr)) {
590	#ifndef VBOX
591	dsound_logerr (hr, "Could not set primary playback buffer format\n");
592	#else
593	LogRel(("DSound: Could not set primary playback buffer format\n"));
594	dsound_log_hresult(hr);
595	#endif
596	}
597
598	hr = IDirectSoundBuffer_GetFormat (
599	s->dsound_primary_buffer,
600	&wfx,
601	sizeof (wfx),
602	NULL
603	);
604	if (FAILED (hr)) {
605	#ifndef VBOX
606	dsound_logerr (hr, "Could not get primary playback buffer format\n");
607	#else
608	LogRel(("DSound: Could not get primary playback buffer format\n"));
609	dsound_log_hresult(hr);
610	#endif
611	goto fail0;
612	}
613
614	#ifdef DEBUG_DSOUND
615	dolog ("Primary\n");
616	print_wave_format (&wfx);
617	#endif
618
619	err = waveformat_to_audio_settings (&wfx, &s->settings);
620	if (err) {
621	goto fail0;
622	}
623
624	return 0;
625
626	fail0:
627	dsound_close (s);
628	return -1;
629	}
630
631	static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...)
632	{
633	HRESULT hr;
634	DWORD status;
635	DSoundVoiceOut ds = (DSoundVoiceOut ) hw;
636	LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer;
637
638	if (!dsb) {
639	dolog ("Attempt to control voice without a buffer\n");
640	return 0;
641	}
642
643	switch (cmd) {
644	case VOICE_ENABLE:
645	if (dsound_get_status_out (dsb, &status)) {
646	return -1;
647	}
648
649	if (status & DSBSTATUS_PLAYING) {
650	dolog ("warning: Voice is already playing\n");
651	return 0;
652	}
653
654	dsound_clear_sample (hw, dsb);
655
656	hr = IDirectSoundBuffer_Play (dsb, 0, 0, DSBPLAY_LOOPING);
657	if (FAILED (hr)) {
658	dsound_logerr (hr, "Could not start playing buffer\n");
659	return -1;
660	}
661	break;
662
663	case VOICE_DISABLE:
664	if (dsound_get_status_out (dsb, &status)) {
665	return -1;
666	}
667
668	if (status & DSBSTATUS_PLAYING) {
669	hr = IDirectSoundBuffer_Stop (dsb);
670	if (FAILED (hr)) {
671	dsound_logerr (hr, "Could not stop playing buffer\n");
672	return -1;
673	}
674	}
675	else {
676	dolog ("warning: Voice is not playing\n");
677	}
678	break;
679	}
680	return 0;
681	}
682
683	static int dsound_write (SWVoiceOut sw, void buf, int len)
684	{
685	return audio_pcm_sw_write (sw, buf, len);
686	}
687
688	static int dsound_run_out (HWVoiceOut *hw)
689	{
690	int err;
691	HRESULT hr;
692	DSoundVoiceOut ds = (DSoundVoiceOut ) hw;
693	LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer;
694	int live, len, hwshift;
695	DWORD blen1, blen2;
696	DWORD len1, len2;
697	DWORD decr;
698	DWORD wpos, ppos, old_pos;
699	LPVOID p1, p2;
700	int bufsize;
701
702	if (!dsb) {
703	dolog ("Attempt to run empty with playback buffer\n");
704	return 0;
705	}
706
707	hwshift = hw->info.shift;
708	bufsize = hw->samples << hwshift;
709
710	live = audio_pcm_hw_get_live_out (hw);
711
712	hr = IDirectSoundBuffer_GetCurrentPosition (
713	dsb,
714	&ppos,
715	ds->first_time ? &wpos : NULL
716	);
717	if (hr == DSERR_BUFFERLOST) {
718	if (dsound_restore_out(dsb))
719	return 0;
720	hr = IDirectSoundBuffer_GetCurrentPosition(dsb, &ppos, ds->first_time ? &wpos : NULL);
721	if (hr == DSERR_BUFFERLOST)
722	return 0; // Avoid log flooding if the error is still there.
723	}
724	if (FAILED (hr)) {
725	dsound_logerr (hr, "Could not get playback buffer position\n");
726	return 0;
727	}
728
729	len = live << hwshift;
730
731	if (ds->first_time) {
732	if (conf.latency_millis) {
733	DWORD cur_blat;
734
735	cur_blat = audio_ring_dist (wpos, ppos, bufsize);
736	ds->first_time = 0;
737	old_pos = wpos;
738	old_pos +=
739	millis_to_bytes (&hw->info, conf.latency_millis) - cur_blat;
740	old_pos %= bufsize;
741	old_pos &= ~hw->info.align;
742	}
743	else {
744	old_pos = wpos;
745	}
746	#ifdef DEBUG_DSOUND
747	ds->played = 0;
748	ds->mixed = 0;
749	#endif
750	}
751	else {
752	if (ds->old_pos == ppos) {
753	#ifdef DEBUG_DSOUND
754	dolog ("old_pos == ppos\n");
755	#endif
756	return 0;
757	}
758
759	#ifdef DEBUG_DSOUND
760	ds->played += audio_ring_dist (ds->old_pos, ppos, bufsize);
761	#endif
762	old_pos = ds->old_pos;
763	}
764
765	if ((old_pos < ppos) && ((old_pos + len) > ppos)) {
766	len = ppos - old_pos;
767	}
768	else {
769	if ((old_pos > ppos) && ((old_pos + len) > (ppos + bufsize))) {
770	len = bufsize - old_pos + ppos;
771	}
772	}
773
774	if (audio_bug (AUDIO_FUNC, len < 0 \|\| len > bufsize)) {
775	dolog ("len=%d bufsize=%d old_pos=%ld ppos=%ld\n",
776	len, bufsize, old_pos, ppos);
777	return 0;
778	}
779
780	len &= ~hw->info.align;
781	if (!len) {
782	return 0;
783	}
784
785	#ifdef DEBUG_DSOUND
786	ds->old_ppos = ppos;
787	#endif
788	err = dsound_lock_out (
789	dsb,
790	&hw->info,
791	old_pos,
792	len,
793	&p1, &p2,
794	&blen1, &blen2,
795	0
796	);
797	if (err) {
798	return 0;
799	}
800
801	len1 = blen1 >> hwshift;
802	len2 = blen2 >> hwshift;
803	decr = len1 + len2;
804
805	if (p1 && len1) {
806	dsound_write_sample (hw, p1, len1);
807	}
808
809	if (p2 && len2) {
810	dsound_write_sample (hw, p2, len2);
811	}
812
813	dsound_unlock_out (dsb, p1, p2, blen1, blen2);
814	ds->old_pos = (old_pos + (decr << hwshift)) % bufsize;
815
816	#ifdef DEBUG_DSOUND
817	ds->mixed += decr << hwshift;
818
819	dolog ("played %lu mixed %lu diff %ld sec %f\n",
820	ds->played,
821	ds->mixed,
822	ds->mixed - ds->played,
823	abs (ds->mixed - ds->played) / (double) hw->info.bytes_per_second);
824	#endif
825	return decr;
826	}
827
828	static int dsound_ctl_in (HWVoiceIn *hw, int cmd, ...)
829	{
830	HRESULT hr;
831	DWORD status;
832	DSoundVoiceIn ds = (DSoundVoiceIn ) hw;
833	LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer;
834
835	if (!dscb) {
836	dolog ("Attempt to control capture voice without a buffer\n");
837	return -1;
838	}
839
840	switch (cmd) {
841	case VOICE_ENABLE:
842	if (dsound_get_status_in (dscb, &status)) {
843	return -1;
844	}
845
846	if (status & DSCBSTATUS_CAPTURING) {
847	dolog ("warning: Voice is already capturing\n");
848	return 0;
849	}
850
851	/* clear ?? */
852
853	hr = IDirectSoundCaptureBuffer_Start (dscb, DSCBSTART_LOOPING);
854	if (FAILED (hr)) {
855	dsound_logerr (hr, "Could not start capturing\n");
856	return -1;
857	}
858	break;
859
860	case VOICE_DISABLE:
861	if (dsound_get_status_in (dscb, &status)) {
862	return -1;
863	}
864
865	if (status & DSCBSTATUS_CAPTURING) {
866	hr = IDirectSoundCaptureBuffer_Stop (dscb);
867	if (FAILED (hr)) {
868	dsound_logerr (hr, "Could not stop capturing\n");
869	return -1;
870	}
871	}
872	else {
873	dolog ("warning: Voice is not capturing\n");
874	}
875	break;
876	}
877	return 0;
878	}
879
880	static int dsound_read (SWVoiceIn sw, void buf, int len)
881	{
882	return audio_pcm_sw_read (sw, buf, len);
883	}
884
885	static int dsound_run_in (HWVoiceIn *hw)
886	{
887	int err;
888	HRESULT hr;
889	DSoundVoiceIn ds = (DSoundVoiceIn ) hw;
890	LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer;
891	int live, len, dead;
892	DWORD blen1, blen2;
893	DWORD len1, len2;
894	DWORD decr;
895	DWORD cpos, rpos;
896	LPVOID p1, p2;
897	int hwshift;
898
899	if (!dscb) {
900	dolog ("Attempt to run without capture buffer\n");
901	return 0;
902	}
903
904	hwshift = hw->info.shift;
905
906	live = audio_pcm_hw_get_live_in (hw);
907	dead = hw->samples - live;
908	if (!dead) {
909	return 0;
910	}
911
912	hr = IDirectSoundCaptureBuffer_GetCurrentPosition (
913	dscb,
914	&cpos,
915	ds->first_time ? &rpos : NULL
916	);
917	if (FAILED (hr)) {
918	dsound_logerr (hr, "Could not get capture buffer position\n");
919	return 0;
920	}
921
922	if (ds->first_time) {
923	ds->first_time = 0;
924	if (rpos & hw->info.align) {
925	ldebug ("warning: Misaligned capture read position %ld(%d)\n",
926	rpos, hw->info.align);
927	}
928	hw->wpos = rpos >> hwshift;
929	}
930
931	if (cpos & hw->info.align) {
932	ldebug ("warning: Misaligned capture position %ld(%d)\n",
933	cpos, hw->info.align);
934	}
935	cpos >>= hwshift;
936
937	len = audio_ring_dist (cpos, hw->wpos, hw->samples);
938	if (!len) {
939	return 0;
940	}
941	len = audio_MIN (len, dead);
942
943	err = dsound_lock_in (
944	dscb,
945	&hw->info,
946	hw->wpos << hwshift,
947	len << hwshift,
948	&p1,
949	&p2,
950	&blen1,
951	&blen2,
952	0
953	);
954	if (err) {
955	return 0;
956	}
957
958	len1 = blen1 >> hwshift;
959	len2 = blen2 >> hwshift;
960	decr = len1 + len2;
961
962	#ifndef VBOX
963	if (p1 && len1) {
964	hw->conv (hw->conv_buf + hw->wpos, p1, len1, &nominal_volume);
965	}
966
967	if (p2 && len2) {
968	hw->conv (hw->conv_buf, p2, len2, &nominal_volume);
969	}
970	#else
971	if (p1 && len1) {
972	hw->conv (hw->conv_buf + hw->wpos, p1, len1, &pcm_in_volume);
973	}
974
975	if (p2 && len2) {
976	hw->conv (hw->conv_buf, p2, len2, &pcm_in_volume);
977	}
978	#endif
979
980	dsound_unlock_in (dscb, p1, p2, blen1, blen2);
981	hw->wpos = (hw->wpos + decr) % hw->samples;
982	return decr;
983	}
984
985	static void dsound_audio_fini (void *opaque)
986	{
987	HRESULT hr;
988	dsound *s = opaque;
989
990	if (!s->dsound) {
991	goto dsound_audio_fini_exit;
992	}
993
994	hr = IDirectSound_Release (s->dsound);
995	if (FAILED (hr)) {
996	dsound_logerr (hr, "Could not release DirectSound\n");
997	}
998	s->dsound = NULL;
999
1000	if (!s->dsound_capture) {
1001	goto dsound_audio_fini_exit;
1002	}
1003
1004	hr = IDirectSoundCapture_Release (s->dsound_capture);
1005	if (FAILED (hr)) {
1006	dsound_logerr (hr, "Could not release DirectSoundCapture\n");
1007	}
1008	s->dsound_capture = NULL;
1009
1010	dsound_audio_fini_exit:
1011	CoUninitialize();
1012	}
1013
1014	static void *dsound_audio_init (void)
1015	{
1016	int err;
1017	HRESULT hr;
1018	dsound *s = &glob_dsound;
1019
1020	hr = CoInitializeEx (NULL, COINIT_MULTITHREADED);
1021	if (FAILED (hr)) {
1022	#ifndef VBOX
1023	dsound_logerr (hr, "Could not initialize COM\n");
1024	#else
1025	LogRel(("DSound: Could not initialize COM\n"));
1026	dsound_log_hresult(hr);
1027	#endif
1028	return NULL;
1029	}
1030
1031	hr = CoCreateInstance (
1032	&CLSID_DirectSound,
1033	NULL,
1034	CLSCTX_ALL,
1035	&IID_IDirectSound,
1036	(void **) &s->dsound
1037	);
1038	if (FAILED (hr)) {
1039	#ifndef VBOX
1040	dsound_logerr (hr, "Could not create DirectSound instance\n");
1041	#else
1042	LogRel(("DSound: Could not create DirectSound instance\n"));
1043	dsound_log_hresult(hr);
1044	#endif
1045	CoUninitialize();
1046	return NULL;
1047	}
1048
1049	hr = IDirectSound_Initialize (s->dsound, NULL);
1050	if (FAILED (hr)) {
1051	#ifndef VBOX
1052	dsound_logerr (hr, "Could not initialize DirectSound\n");
1053	#else
1054	LogRel(("DSound: Could not initialize DirectSound\n"));
1055	dsound_log_hresult(hr);
1056	#endif
1057
1058	hr = IDirectSound_Release (s->dsound);
1059	if (FAILED (hr)) {
1060	dsound_logerr (hr, "Could not release DirectSound\n");
1061	}
1062	s->dsound = NULL;
1063	CoUninitialize();
1064	return NULL;
1065	}
1066
1067	hr = CoCreateInstance (
1068	&CLSID_DirectSoundCapture,
1069	NULL,
1070	CLSCTX_ALL,
1071	&IID_IDirectSoundCapture,
1072	(void **) &s->dsound_capture
1073	);
1074	if (FAILED (hr)) {
1075	#ifndef VBOX
1076	dsound_logerr (hr, "Could not create DirectSoundCapture instance\n");
1077	#else
1078	LogRel(("DSound: Could not create DirectSoundCapture instance\n"));
1079	dsound_log_hresult(hr);
1080	#endif
1081	}
1082	else {
1083	hr = IDirectSoundCapture_Initialize (s->dsound_capture, NULL);
1084	if (FAILED (hr)) {
1085	#ifndef VBOX
1086	dsound_logerr (hr, "Could not initialize DirectSoundCapture\n");
1087	#else
1088	LogRel(("DSound: Could not initialize DirectSoundCapture\n"));
1089	dsound_log_hresult(hr);
1090	#endif
1091
1092	hr = IDirectSoundCapture_Release (s->dsound_capture);
1093	if (FAILED (hr)) {
1094	dsound_logerr (hr,
1095	"Could not release DirectSoundCapture\n");
1096	}
1097	s->dsound_capture = NULL;
1098	}
1099	}
1100
1101	err = dsound_open (s);
1102	if (err) {
1103	dsound_audio_fini (s);
1104	return NULL;
1105	}
1106
1107	return s;
1108	}
1109
1110	static struct audio_option dsound_options[] = {
1111	{"LockRetries", AUD_OPT_INT, &conf.lock_retries,
1112	"Number of times to attempt locking the buffer", NULL, 0},
1113	{"RestoreRetries", AUD_OPT_INT, &conf.restore_retries,
1114	"Number of times to attempt restoring the buffer", NULL, 0},
1115	{"GetStatusRetries", AUD_OPT_INT, &conf.getstatus_retries,
1116	"Number of times to attempt getting status of the buffer", NULL, 0},
1117	{"SetPrimary", AUD_OPT_BOOL, &conf.set_primary,
1118	"Set the parameters of primary buffer", NULL, 0},
1119	{"LatencyMillis", AUD_OPT_INT, &conf.latency_millis,
1120	"(undocumented)", NULL, 0},
1121	{"PrimaryFreq", AUD_OPT_INT, &conf.settings.freq,
1122	"Primary buffer frequency", NULL, 0},
1123	{"PrimaryChannels", AUD_OPT_INT, &conf.settings.nchannels,
1124	"Primary buffer number of channels (1 - mono, 2 - stereo)", NULL, 0},
1125	{"PrimaryFmt", AUD_OPT_FMT, &conf.settings.fmt,
1126	"Primary buffer format", NULL, 0},
1127	{"BufsizeOut", AUD_OPT_INT, &conf.bufsize_out,
1128	"(undocumented)", NULL, 0},
1129	{"BufsizeIn", AUD_OPT_INT, &conf.bufsize_in,
1130	"(undocumented)", NULL, 0},
1131	{NULL, 0, NULL, NULL, NULL, 0}
1132	};
1133
1134	static struct audio_pcm_ops dsound_pcm_ops = {
1135	dsound_init_out,
1136	dsound_fini_out,
1137	dsound_run_out,
1138	dsound_write,
1139	dsound_ctl_out,
1140
1141	dsound_init_in,
1142	dsound_fini_in,
1143	dsound_run_in,
1144	dsound_read,
1145	dsound_ctl_in
1146	};
1147
1148	struct audio_driver dsound_audio_driver = {
1149	INIT_FIELD (name = ) "dsound",
1150	INIT_FIELD (descr = )
1151	"DirectSound http://wikipedia.org/wiki/DirectSound",
1152	INIT_FIELD (options = ) dsound_options,
1153	INIT_FIELD (init = ) dsound_audio_init,
1154	INIT_FIELD (fini = ) dsound_audio_fini,
1155	INIT_FIELD (pcm_ops = ) &dsound_pcm_ops,
1156	INIT_FIELD (can_be_default = ) 1,
1157	INIT_FIELD (max_voices_out = ) INT_MAX,
1158	INIT_FIELD (max_voices_in = ) 1,
1159	INIT_FIELD (voice_size_out = ) sizeof (DSoundVoiceOut),
1160	INIT_FIELD (voice_size_in = ) sizeof (DSoundVoiceIn)
1161	};

注意: 瀏覽 TracBrowser 來幫助您使用儲存庫瀏覽器

source: vbox/trunk/src/VBox/Devices/Audio/dsoundaudio.c@ 40920

以其他格式下載: