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