Fix MXCC printf warning (based on patch by Robert Reif)
[qemu/mini2440.git] / audio / dsoundaudio.c
blobcba8c800303a36c54fe3a73cadf74bb93c2461a9
1 /*
2 * QEMU DirectSound audio driver
4 * Copyright (c) 2005 Vassili Karpov (malc)
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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.
26 * SEAL 1.07 by Carlos 'pel' Hasan was used as documentation
29 #include "qemu-common.h"
30 #include "audio.h"
32 #define AUDIO_CAP "dsound"
33 #include "audio_int.h"
35 #define WIN32_LEAN_AND_MEAN
36 #include <windows.h>
37 #include <mmsystem.h>
38 #include <objbase.h>
39 #include <dsound.h>
41 /* #define DEBUG_DSOUND */
43 static struct {
44 int lock_retries;
45 int restore_retries;
46 int getstatus_retries;
47 int set_primary;
48 int bufsize_in;
49 int bufsize_out;
50 audsettings_t settings;
51 int latency_millis;
52 } conf = {
57 16384,
58 16384,
60 44100,
62 AUD_FMT_S16
67 typedef struct {
68 LPDIRECTSOUND dsound;
69 LPDIRECTSOUNDCAPTURE dsound_capture;
70 LPDIRECTSOUNDBUFFER dsound_primary_buffer;
71 audsettings_t settings;
72 } dsound;
74 static dsound glob_dsound;
76 typedef struct {
77 HWVoiceOut hw;
78 LPDIRECTSOUNDBUFFER dsound_buffer;
79 DWORD old_pos;
80 int first_time;
81 #ifdef DEBUG_DSOUND
82 DWORD old_ppos;
83 DWORD played;
84 DWORD mixed;
85 #endif
86 } DSoundVoiceOut;
88 typedef struct {
89 HWVoiceIn hw;
90 int first_time;
91 LPDIRECTSOUNDCAPTUREBUFFER dsound_capture_buffer;
92 } DSoundVoiceIn;
94 static void dsound_log_hresult (HRESULT hr)
96 const char *str = "BUG";
98 switch (hr) {
99 case DS_OK:
100 str = "The method succeeded";
101 break;
102 #ifdef DS_NO_VIRTUALIZATION
103 case DS_NO_VIRTUALIZATION:
104 str = "The buffer was created, but another 3D algorithm was substituted";
105 break;
106 #endif
107 #ifdef DS_INCOMPLETE
108 case DS_INCOMPLETE:
109 str = "The method succeeded, but not all the optional effects were obtained";
110 break;
111 #endif
112 #ifdef DSERR_ACCESSDENIED
113 case DSERR_ACCESSDENIED:
114 str = "The request failed because access was denied";
115 break;
116 #endif
117 #ifdef DSERR_ALLOCATED
118 case DSERR_ALLOCATED:
119 str = "The request failed because resources, such as a priority level, were already in use by another caller";
120 break;
121 #endif
122 #ifdef DSERR_ALREADYINITIALIZED
123 case DSERR_ALREADYINITIALIZED:
124 str = "The object is already initialized";
125 break;
126 #endif
127 #ifdef DSERR_BADFORMAT
128 case DSERR_BADFORMAT:
129 str = "The specified wave format is not supported";
130 break;
131 #endif
132 #ifdef DSERR_BADSENDBUFFERGUID
133 case DSERR_BADSENDBUFFERGUID:
134 str = "The GUID specified in an audiopath file does not match a valid mix-in buffer";
135 break;
136 #endif
137 #ifdef DSERR_BUFFERLOST
138 case DSERR_BUFFERLOST:
139 str = "The buffer memory has been lost and must be restored";
140 break;
141 #endif
142 #ifdef DSERR_BUFFERTOOSMALL
143 case DSERR_BUFFERTOOSMALL:
144 str = "The buffer size is not great enough to enable effects processing";
145 break;
146 #endif
147 #ifdef DSERR_CONTROLUNAVAIL
148 case DSERR_CONTROLUNAVAIL:
149 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";
150 break;
151 #endif
152 #ifdef DSERR_DS8_REQUIRED
153 case DSERR_DS8_REQUIRED:
154 str = "A DirectSound object of class CLSID_DirectSound8 or later is required for the requested functionality. For more information, see IDirectSound8 Interface";
155 break;
156 #endif
157 #ifdef DSERR_FXUNAVAILABLE
158 case DSERR_FXUNAVAILABLE:
159 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";
160 break;
161 #endif
162 #ifdef DSERR_GENERIC
163 case DSERR_GENERIC :
164 str = "An undetermined error occurred inside the DirectSound subsystem";
165 break;
166 #endif
167 #ifdef DSERR_INVALIDCALL
168 case DSERR_INVALIDCALL:
169 str = "This function is not valid for the current state of this object";
170 break;
171 #endif
172 #ifdef DSERR_INVALIDPARAM
173 case DSERR_INVALIDPARAM:
174 str = "An invalid parameter was passed to the returning function";
175 break;
176 #endif
177 #ifdef DSERR_NOAGGREGATION
178 case DSERR_NOAGGREGATION:
179 str = "The object does not support aggregation";
180 break;
181 #endif
182 #ifdef DSERR_NODRIVER
183 case DSERR_NODRIVER:
184 str = "No sound driver is available for use, or the given GUID is not a valid DirectSound device ID";
185 break;
186 #endif
187 #ifdef DSERR_NOINTERFACE
188 case DSERR_NOINTERFACE:
189 str = "The requested COM interface is not available";
190 break;
191 #endif
192 #ifdef DSERR_OBJECTNOTFOUND
193 case DSERR_OBJECTNOTFOUND:
194 str = "The requested object was not found";
195 break;
196 #endif
197 #ifdef DSERR_OTHERAPPHASPRIO
198 case DSERR_OTHERAPPHASPRIO:
199 str = "Another application has a higher priority level, preventing this call from succeeding";
200 break;
201 #endif
202 #ifdef DSERR_OUTOFMEMORY
203 case DSERR_OUTOFMEMORY:
204 str = "The DirectSound subsystem could not allocate sufficient memory to complete the caller's request";
205 break;
206 #endif
207 #ifdef DSERR_PRIOLEVELNEEDED
208 case DSERR_PRIOLEVELNEEDED:
209 str = "A cooperative level of DSSCL_PRIORITY or higher is required";
210 break;
211 #endif
212 #ifdef DSERR_SENDLOOP
213 case DSERR_SENDLOOP:
214 str = "A circular loop of send effects was detected";
215 break;
216 #endif
217 #ifdef DSERR_UNINITIALIZED
218 case DSERR_UNINITIALIZED:
219 str = "The Initialize method has not been called or has not been called successfully before other methods were called";
220 break;
221 #endif
222 #ifdef DSERR_UNSUPPORTED
223 case DSERR_UNSUPPORTED:
224 str = "The function called is not supported at this time";
225 break;
226 #endif
227 default:
228 AUD_log (AUDIO_CAP, "Reason: Unknown (HRESULT %#lx)\n", hr);
229 return;
232 AUD_log (AUDIO_CAP, "Reason: %s\n", str);
235 static void GCC_FMT_ATTR (2, 3) dsound_logerr (
236 HRESULT hr,
237 const char *fmt,
241 va_list ap;
243 va_start (ap, fmt);
244 AUD_vlog (AUDIO_CAP, fmt, ap);
245 va_end (ap);
247 dsound_log_hresult (hr);
250 static void GCC_FMT_ATTR (3, 4) dsound_logerr2 (
251 HRESULT hr,
252 const char *typ,
253 const char *fmt,
257 va_list ap;
259 AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ);
260 va_start (ap, fmt);
261 AUD_vlog (AUDIO_CAP, fmt, ap);
262 va_end (ap);
264 dsound_log_hresult (hr);
267 static DWORD millis_to_bytes (struct audio_pcm_info *info, DWORD millis)
269 return (millis * info->bytes_per_second) / 1000;
272 #ifdef DEBUG_DSOUND
273 static void print_wave_format (WAVEFORMATEX *wfx)
275 dolog ("tag = %d\n", wfx->wFormatTag);
276 dolog ("nChannels = %d\n", wfx->nChannels);
277 dolog ("nSamplesPerSec = %ld\n", wfx->nSamplesPerSec);
278 dolog ("nAvgBytesPerSec = %ld\n", wfx->nAvgBytesPerSec);
279 dolog ("nBlockAlign = %d\n", wfx->nBlockAlign);
280 dolog ("wBitsPerSample = %d\n", wfx->wBitsPerSample);
281 dolog ("cbSize = %d\n", wfx->cbSize);
283 #endif
285 static int dsound_restore_out (LPDIRECTSOUNDBUFFER dsb)
287 HRESULT hr;
288 int i;
290 for (i = 0; i < conf.restore_retries; ++i) {
291 hr = IDirectSoundBuffer_Restore (dsb);
293 switch (hr) {
294 case DS_OK:
295 return 0;
297 case DSERR_BUFFERLOST:
298 continue;
300 default:
301 dsound_logerr (hr, "Could not restore playback buffer\n");
302 return -1;
306 dolog ("%d attempts to restore playback buffer failed\n", i);
307 return -1;
310 static int waveformat_from_audio_settings (WAVEFORMATEX *wfx, audsettings_t *as)
312 memset (wfx, 0, sizeof (*wfx));
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;
321 switch (as->fmt) {
322 case AUD_FMT_S8:
323 case AUD_FMT_U8:
324 wfx->wBitsPerSample = 8;
325 break;
327 case AUD_FMT_S16:
328 case AUD_FMT_U16:
329 wfx->wBitsPerSample = 16;
330 wfx->nAvgBytesPerSec <<= 1;
331 wfx->nBlockAlign <<= 1;
332 break;
334 case AUD_FMT_S32:
335 case AUD_FMT_U32:
336 wfx->wBitsPerSample = 32;
337 wfx->nAvgBytesPerSec <<= 2;
338 wfx->nBlockAlign <<= 2;
339 break;
341 default:
342 dolog ("Internal logic error: Bad audio format %d\n", as->freq);
343 return -1;
346 return 0;
349 static int waveformat_to_audio_settings (WAVEFORMATEX *wfx, audsettings_t *as)
351 if (wfx->wFormatTag != WAVE_FORMAT_PCM) {
352 dolog ("Invalid wave format, tag is not PCM, but %d\n",
353 wfx->wFormatTag);
354 return -1;
357 if (!wfx->nSamplesPerSec) {
358 dolog ("Invalid wave format, frequency is zero\n");
359 return -1;
361 as->freq = wfx->nSamplesPerSec;
363 switch (wfx->nChannels) {
364 case 1:
365 as->nchannels = 1;
366 break;
368 case 2:
369 as->nchannels = 2;
370 break;
372 default:
373 dolog (
374 "Invalid wave format, number of channels is not 1 or 2, but %d\n",
375 wfx->nChannels
377 return -1;
380 switch (wfx->wBitsPerSample) {
381 case 8:
382 as->fmt = AUD_FMT_U8;
383 break;
385 case 16:
386 as->fmt = AUD_FMT_S16;
387 break;
389 case 32:
390 as->fmt = AUD_FMT_S32;
391 break;
393 default:
394 dolog ("Invalid wave format, bits per sample is not "
395 "8, 16 or 32, but %d\n",
396 wfx->wBitsPerSample);
397 return -1;
400 return 0;
403 #include "dsound_template.h"
404 #define DSBTYPE_IN
405 #include "dsound_template.h"
406 #undef DSBTYPE_IN
408 static int dsound_get_status_out (LPDIRECTSOUNDBUFFER dsb, DWORD *statusp)
410 HRESULT hr;
411 int i;
413 for (i = 0; i < conf.getstatus_retries; ++i) {
414 hr = IDirectSoundBuffer_GetStatus (dsb, statusp);
415 if (FAILED (hr)) {
416 dsound_logerr (hr, "Could not get playback buffer status\n");
417 return -1;
420 if (*statusp & DSERR_BUFFERLOST) {
421 if (dsound_restore_out (dsb)) {
422 return -1;
424 continue;
426 break;
429 return 0;
432 static int dsound_get_status_in (LPDIRECTSOUNDCAPTUREBUFFER dscb,
433 DWORD *statusp)
435 HRESULT hr;
437 hr = IDirectSoundCaptureBuffer_GetStatus (dscb, statusp);
438 if (FAILED (hr)) {
439 dsound_logerr (hr, "Could not get capture buffer status\n");
440 return -1;
443 return 0;
446 static void dsound_write_sample (HWVoiceOut *hw, uint8_t *dst, int dst_len)
448 int src_len1 = dst_len;
449 int src_len2 = 0;
450 int pos = hw->rpos + dst_len;
451 st_sample_t *src1 = hw->mix_buf + hw->rpos;
452 st_sample_t *src2 = NULL;
454 if (pos > hw->samples) {
455 src_len1 = hw->samples - hw->rpos;
456 src2 = hw->mix_buf;
457 src_len2 = dst_len - src_len1;
458 pos = src_len2;
461 if (src_len1) {
462 hw->clip (dst, src1, src_len1);
465 if (src_len2) {
466 dst = advance (dst, src_len1 << hw->info.shift);
467 hw->clip (dst, src2, src_len2);
470 hw->rpos = pos % hw->samples;
473 static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb)
475 int err;
476 LPVOID p1, p2;
477 DWORD blen1, blen2, len1, len2;
479 err = dsound_lock_out (
480 dsb,
481 &hw->info,
483 hw->samples << hw->info.shift,
484 &p1, &p2,
485 &blen1, &blen2,
488 if (err) {
489 return;
492 len1 = blen1 >> hw->info.shift;
493 len2 = blen2 >> hw->info.shift;
495 #ifdef DEBUG_DSOUND
496 dolog ("clear %p,%ld,%ld %p,%ld,%ld\n",
497 p1, blen1, len1,
498 p2, blen2, len2);
499 #endif
501 if (p1 && len1) {
502 audio_pcm_info_clear_buf (&hw->info, p1, len1);
505 if (p2 && len2) {
506 audio_pcm_info_clear_buf (&hw->info, p2, len2);
509 dsound_unlock_out (dsb, p1, p2, blen1, blen2);
512 static void dsound_close (dsound *s)
514 HRESULT hr;
516 if (s->dsound_primary_buffer) {
517 hr = IDirectSoundBuffer_Release (s->dsound_primary_buffer);
518 if (FAILED (hr)) {
519 dsound_logerr (hr, "Could not release primary buffer\n");
521 s->dsound_primary_buffer = NULL;
525 static int dsound_open (dsound *s)
527 int err;
528 HRESULT hr;
529 WAVEFORMATEX wfx;
530 DSBUFFERDESC dsbd;
531 HWND hwnd;
533 hwnd = GetForegroundWindow ();
534 hr = IDirectSound_SetCooperativeLevel (
535 s->dsound,
536 hwnd,
537 DSSCL_PRIORITY
540 if (FAILED (hr)) {
541 dsound_logerr (hr, "Could not set cooperative level for window %p\n",
542 hwnd);
543 return -1;
546 if (!conf.set_primary) {
547 return 0;
550 err = waveformat_from_audio_settings (&wfx, &conf.settings);
551 if (err) {
552 return -1;
555 memset (&dsbd, 0, sizeof (dsbd));
556 dsbd.dwSize = sizeof (dsbd);
557 dsbd.dwFlags = DSBCAPS_PRIMARYBUFFER;
558 dsbd.dwBufferBytes = 0;
559 dsbd.lpwfxFormat = NULL;
561 hr = IDirectSound_CreateSoundBuffer (
562 s->dsound,
563 &dsbd,
564 &s->dsound_primary_buffer,
565 NULL
567 if (FAILED (hr)) {
568 dsound_logerr (hr, "Could not create primary playback buffer\n");
569 return -1;
572 hr = IDirectSoundBuffer_SetFormat (s->dsound_primary_buffer, &wfx);
573 if (FAILED (hr)) {
574 dsound_logerr (hr, "Could not set primary playback buffer format\n");
577 hr = IDirectSoundBuffer_GetFormat (
578 s->dsound_primary_buffer,
579 &wfx,
580 sizeof (wfx),
581 NULL
583 if (FAILED (hr)) {
584 dsound_logerr (hr, "Could not get primary playback buffer format\n");
585 goto fail0;
588 #ifdef DEBUG_DSOUND
589 dolog ("Primary\n");
590 print_wave_format (&wfx);
591 #endif
593 err = waveformat_to_audio_settings (&wfx, &s->settings);
594 if (err) {
595 goto fail0;
598 return 0;
600 fail0:
601 dsound_close (s);
602 return -1;
605 static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...)
607 HRESULT hr;
608 DWORD status;
609 DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
610 LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer;
612 if (!dsb) {
613 dolog ("Attempt to control voice without a buffer\n");
614 return 0;
617 switch (cmd) {
618 case VOICE_ENABLE:
619 if (dsound_get_status_out (dsb, &status)) {
620 return -1;
623 if (status & DSBSTATUS_PLAYING) {
624 dolog ("warning: Voice is already playing\n");
625 return 0;
628 dsound_clear_sample (hw, dsb);
630 hr = IDirectSoundBuffer_Play (dsb, 0, 0, DSBPLAY_LOOPING);
631 if (FAILED (hr)) {
632 dsound_logerr (hr, "Could not start playing buffer\n");
633 return -1;
635 break;
637 case VOICE_DISABLE:
638 if (dsound_get_status_out (dsb, &status)) {
639 return -1;
642 if (status & DSBSTATUS_PLAYING) {
643 hr = IDirectSoundBuffer_Stop (dsb);
644 if (FAILED (hr)) {
645 dsound_logerr (hr, "Could not stop playing buffer\n");
646 return -1;
649 else {
650 dolog ("warning: Voice is not playing\n");
652 break;
654 return 0;
657 static int dsound_write (SWVoiceOut *sw, void *buf, int len)
659 return audio_pcm_sw_write (sw, buf, len);
662 static int dsound_run_out (HWVoiceOut *hw)
664 int err;
665 HRESULT hr;
666 DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
667 LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer;
668 int live, len, hwshift;
669 DWORD blen1, blen2;
670 DWORD len1, len2;
671 DWORD decr;
672 DWORD wpos, ppos, old_pos;
673 LPVOID p1, p2;
674 int bufsize;
676 if (!dsb) {
677 dolog ("Attempt to run empty with playback buffer\n");
678 return 0;
681 hwshift = hw->info.shift;
682 bufsize = hw->samples << hwshift;
684 live = audio_pcm_hw_get_live_out (hw);
686 hr = IDirectSoundBuffer_GetCurrentPosition (
687 dsb,
688 &ppos,
689 ds->first_time ? &wpos : NULL
691 if (FAILED (hr)) {
692 dsound_logerr (hr, "Could not get playback buffer position\n");
693 return 0;
696 len = live << hwshift;
698 if (ds->first_time) {
699 if (conf.latency_millis) {
700 DWORD cur_blat;
702 cur_blat = audio_ring_dist (wpos, ppos, bufsize);
703 ds->first_time = 0;
704 old_pos = wpos;
705 old_pos +=
706 millis_to_bytes (&hw->info, conf.latency_millis) - cur_blat;
707 old_pos %= bufsize;
708 old_pos &= ~hw->info.align;
710 else {
711 old_pos = wpos;
713 #ifdef DEBUG_DSOUND
714 ds->played = 0;
715 ds->mixed = 0;
716 #endif
718 else {
719 if (ds->old_pos == ppos) {
720 #ifdef DEBUG_DSOUND
721 dolog ("old_pos == ppos\n");
722 #endif
723 return 0;
726 #ifdef DEBUG_DSOUND
727 ds->played += audio_ring_dist (ds->old_pos, ppos, hw->bufsize);
728 #endif
729 old_pos = ds->old_pos;
732 if ((old_pos < ppos) && ((old_pos + len) > ppos)) {
733 len = ppos - old_pos;
735 else {
736 if ((old_pos > ppos) && ((old_pos + len) > (ppos + bufsize))) {
737 len = bufsize - old_pos + ppos;
741 if (audio_bug (AUDIO_FUNC, len < 0 || len > bufsize)) {
742 dolog ("len=%d bufsize=%d old_pos=%ld ppos=%ld\n",
743 len, bufsize, old_pos, ppos);
744 return 0;
747 len &= ~hw->info.align;
748 if (!len) {
749 return 0;
752 #ifdef DEBUG_DSOUND
753 ds->old_ppos = ppos;
754 #endif
755 err = dsound_lock_out (
756 dsb,
757 &hw->info,
758 old_pos,
759 len,
760 &p1, &p2,
761 &blen1, &blen2,
764 if (err) {
765 return 0;
768 len1 = blen1 >> hwshift;
769 len2 = blen2 >> hwshift;
770 decr = len1 + len2;
772 if (p1 && len1) {
773 dsound_write_sample (hw, p1, len1);
776 if (p2 && len2) {
777 dsound_write_sample (hw, p2, len2);
780 dsound_unlock_out (dsb, p1, p2, blen1, blen2);
781 ds->old_pos = (old_pos + (decr << hwshift)) % bufsize;
783 #ifdef DEBUG_DSOUND
784 ds->mixed += decr << hwshift;
786 dolog ("played %lu mixed %lu diff %ld sec %f\n",
787 ds->played,
788 ds->mixed,
789 ds->mixed - ds->played,
790 abs (ds->mixed - ds->played) / (double) hw->info.bytes_per_second);
791 #endif
792 return decr;
795 static int dsound_ctl_in (HWVoiceIn *hw, int cmd, ...)
797 HRESULT hr;
798 DWORD status;
799 DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
800 LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer;
802 if (!dscb) {
803 dolog ("Attempt to control capture voice without a buffer\n");
804 return -1;
807 switch (cmd) {
808 case VOICE_ENABLE:
809 if (dsound_get_status_in (dscb, &status)) {
810 return -1;
813 if (status & DSCBSTATUS_CAPTURING) {
814 dolog ("warning: Voice is already capturing\n");
815 return 0;
818 /* clear ?? */
820 hr = IDirectSoundCaptureBuffer_Start (dscb, DSCBSTART_LOOPING);
821 if (FAILED (hr)) {
822 dsound_logerr (hr, "Could not start capturing\n");
823 return -1;
825 break;
827 case VOICE_DISABLE:
828 if (dsound_get_status_in (dscb, &status)) {
829 return -1;
832 if (status & DSCBSTATUS_CAPTURING) {
833 hr = IDirectSoundCaptureBuffer_Stop (dscb);
834 if (FAILED (hr)) {
835 dsound_logerr (hr, "Could not stop capturing\n");
836 return -1;
839 else {
840 dolog ("warning: Voice is not capturing\n");
842 break;
844 return 0;
847 static int dsound_read (SWVoiceIn *sw, void *buf, int len)
849 return audio_pcm_sw_read (sw, buf, len);
852 static int dsound_run_in (HWVoiceIn *hw)
854 int err;
855 HRESULT hr;
856 DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
857 LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer;
858 int live, len, dead;
859 DWORD blen1, blen2;
860 DWORD len1, len2;
861 DWORD decr;
862 DWORD cpos, rpos;
863 LPVOID p1, p2;
864 int hwshift;
866 if (!dscb) {
867 dolog ("Attempt to run without capture buffer\n");
868 return 0;
871 hwshift = hw->info.shift;
873 live = audio_pcm_hw_get_live_in (hw);
874 dead = hw->samples - live;
875 if (!dead) {
876 return 0;
879 hr = IDirectSoundCaptureBuffer_GetCurrentPosition (
880 dscb,
881 &cpos,
882 ds->first_time ? &rpos : NULL
884 if (FAILED (hr)) {
885 dsound_logerr (hr, "Could not get capture buffer position\n");
886 return 0;
889 if (ds->first_time) {
890 ds->first_time = 0;
891 if (rpos & hw->info.align) {
892 ldebug ("warning: Misaligned capture read position %ld(%d)\n",
893 rpos, hw->info.align);
895 hw->wpos = rpos >> hwshift;
898 if (cpos & hw->info.align) {
899 ldebug ("warning: Misaligned capture position %ld(%d)\n",
900 cpos, hw->info.align);
902 cpos >>= hwshift;
904 len = audio_ring_dist (cpos, hw->wpos, hw->samples);
905 if (!len) {
906 return 0;
908 len = audio_MIN (len, dead);
910 err = dsound_lock_in (
911 dscb,
912 &hw->info,
913 hw->wpos << hwshift,
914 len << hwshift,
915 &p1,
916 &p2,
917 &blen1,
918 &blen2,
921 if (err) {
922 return 0;
925 len1 = blen1 >> hwshift;
926 len2 = blen2 >> hwshift;
927 decr = len1 + len2;
929 if (p1 && len1) {
930 hw->conv (hw->conv_buf + hw->wpos, p1, len1, &nominal_volume);
933 if (p2 && len2) {
934 hw->conv (hw->conv_buf, p2, len2, &nominal_volume);
937 dsound_unlock_in (dscb, p1, p2, blen1, blen2);
938 hw->wpos = (hw->wpos + decr) % hw->samples;
939 return decr;
942 static void dsound_audio_fini (void *opaque)
944 HRESULT hr;
945 dsound *s = opaque;
947 if (!s->dsound) {
948 return;
951 hr = IDirectSound_Release (s->dsound);
952 if (FAILED (hr)) {
953 dsound_logerr (hr, "Could not release DirectSound\n");
955 s->dsound = NULL;
957 if (!s->dsound_capture) {
958 return;
961 hr = IDirectSoundCapture_Release (s->dsound_capture);
962 if (FAILED (hr)) {
963 dsound_logerr (hr, "Could not release DirectSoundCapture\n");
965 s->dsound_capture = NULL;
968 static void *dsound_audio_init (void)
970 int err;
971 HRESULT hr;
972 dsound *s = &glob_dsound;
974 hr = CoInitialize (NULL);
975 if (FAILED (hr)) {
976 dsound_logerr (hr, "Could not initialize COM\n");
977 return NULL;
980 hr = CoCreateInstance (
981 &CLSID_DirectSound,
982 NULL,
983 CLSCTX_ALL,
984 &IID_IDirectSound,
985 (void **) &s->dsound
987 if (FAILED (hr)) {
988 dsound_logerr (hr, "Could not create DirectSound instance\n");
989 return NULL;
992 hr = IDirectSound_Initialize (s->dsound, NULL);
993 if (FAILED (hr)) {
994 dsound_logerr (hr, "Could not initialize DirectSound\n");
996 hr = IDirectSound_Release (s->dsound);
997 if (FAILED (hr)) {
998 dsound_logerr (hr, "Could not release DirectSound\n");
1000 s->dsound = NULL;
1001 return NULL;
1004 hr = CoCreateInstance (
1005 &CLSID_DirectSoundCapture,
1006 NULL,
1007 CLSCTX_ALL,
1008 &IID_IDirectSoundCapture,
1009 (void **) &s->dsound_capture
1011 if (FAILED (hr)) {
1012 dsound_logerr (hr, "Could not create DirectSoundCapture instance\n");
1014 else {
1015 hr = IDirectSoundCapture_Initialize (s->dsound_capture, NULL);
1016 if (FAILED (hr)) {
1017 dsound_logerr (hr, "Could not initialize DirectSoundCapture\n");
1019 hr = IDirectSoundCapture_Release (s->dsound_capture);
1020 if (FAILED (hr)) {
1021 dsound_logerr (hr, "Could not release DirectSoundCapture\n");
1023 s->dsound_capture = NULL;
1027 err = dsound_open (s);
1028 if (err) {
1029 dsound_audio_fini (s);
1030 return NULL;
1033 return s;
1036 static struct audio_option dsound_options[] = {
1037 {"LOCK_RETRIES", AUD_OPT_INT, &conf.lock_retries,
1038 "Number of times to attempt locking the buffer", NULL, 0},
1039 {"RESTOURE_RETRIES", AUD_OPT_INT, &conf.restore_retries,
1040 "Number of times to attempt restoring the buffer", NULL, 0},
1041 {"GETSTATUS_RETRIES", AUD_OPT_INT, &conf.getstatus_retries,
1042 "Number of times to attempt getting status of the buffer", NULL, 0},
1043 {"SET_PRIMARY", AUD_OPT_BOOL, &conf.set_primary,
1044 "Set the parameters of primary buffer", NULL, 0},
1045 {"LATENCY_MILLIS", AUD_OPT_INT, &conf.latency_millis,
1046 "(undocumented)", NULL, 0},
1047 {"PRIMARY_FREQ", AUD_OPT_INT, &conf.settings.freq,
1048 "Primary buffer frequency", NULL, 0},
1049 {"PRIMARY_CHANNELS", AUD_OPT_INT, &conf.settings.nchannels,
1050 "Primary buffer number of channels (1 - mono, 2 - stereo)", NULL, 0},
1051 {"PRIMARY_FMT", AUD_OPT_FMT, &conf.settings.fmt,
1052 "Primary buffer format", NULL, 0},
1053 {"BUFSIZE_OUT", AUD_OPT_INT, &conf.bufsize_out,
1054 "(undocumented)", NULL, 0},
1055 {"BUFSIZE_IN", AUD_OPT_INT, &conf.bufsize_in,
1056 "(undocumented)", NULL, 0},
1057 {NULL, 0, NULL, NULL, NULL, 0}
1060 static struct audio_pcm_ops dsound_pcm_ops = {
1061 dsound_init_out,
1062 dsound_fini_out,
1063 dsound_run_out,
1064 dsound_write,
1065 dsound_ctl_out,
1067 dsound_init_in,
1068 dsound_fini_in,
1069 dsound_run_in,
1070 dsound_read,
1071 dsound_ctl_in
1074 struct audio_driver dsound_audio_driver = {
1075 INIT_FIELD (name = ) "dsound",
1076 INIT_FIELD (descr = )
1077 "DirectSound http://wikipedia.org/wiki/DirectSound",
1078 INIT_FIELD (options = ) dsound_options,
1079 INIT_FIELD (init = ) dsound_audio_init,
1080 INIT_FIELD (fini = ) dsound_audio_fini,
1081 INIT_FIELD (pcm_ops = ) &dsound_pcm_ops,
1082 INIT_FIELD (can_be_default = ) 1,
1083 INIT_FIELD (max_voices_out = ) INT_MAX,
1084 INIT_FIELD (max_voices_in = ) 1,
1085 INIT_FIELD (voice_size_out = ) sizeof (DSoundVoiceOut),
1086 INIT_FIELD (voice_size_in = ) sizeof (DSoundVoiceIn)