2 * QEMU DirectSound audio driver header
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
25 #define NAME "capture buffer"
26 #define NAME2 "DirectSoundCapture"
28 #define IFACE IDirectSoundCaptureBuffer
29 #define BUFPTR LPDIRECTSOUNDCAPTUREBUFFER
30 #define FIELD dsound_capture_buffer
31 #define FIELD2 dsound_capture
33 #define NAME "playback buffer"
34 #define NAME2 "DirectSound"
36 #define IFACE IDirectSoundBuffer
37 #define BUFPTR LPDIRECTSOUNDBUFFER
38 #define FIELD dsound_buffer
42 static int glue (dsound_unlock_, TYPE) (
52 hr = glue (IFACE, _Unlock) (buf, p1, blen1, p2, blen2);
54 dsound_logerr (hr, "Could not unlock " NAME "\n");
61 static int glue (dsound_lock_, TYPE) (
63 struct audio_pcm_info *info,
75 LPVOID p1 = NULL, p2 = NULL;
76 DWORD blen1 = 0, blen2 = 0;
80 flag = entire ? DSCBLOCK_ENTIREBUFFER : 0;
82 flag = entire ? DSBLOCK_ENTIREBUFFER : 0;
84 for (i = 0; i < conf.lock_retries; ++i) {
85 hr = glue (IFACE, _Lock) (
98 if (hr == DSERR_BUFFERLOST) {
99 if (glue (dsound_restore_, TYPE) (buf)) {
100 dsound_logerr (hr, "Could not lock " NAME "\n");
106 dsound_logerr (hr, "Could not lock " NAME "\n");
113 if (i == conf.lock_retries) {
114 dolog ("%d attempts to lock " NAME " failed\n", i);
118 if ((p1 && (blen1 & info->align)) || (p2 && (blen2 & info->align))) {
119 dolog ("DirectSound returned misaligned buffer %ld %ld\n",
121 glue (dsound_unlock_, TYPE) (buf, p1, p2, blen1, blen2);
126 dolog ("warning: !p1 && blen1=%ld\n", blen1);
131 dolog ("warning: !p2 && blen2=%ld\n", blen2);
150 static void dsound_fini_in (HWVoiceIn *hw)
152 static void dsound_fini_out (HWVoiceOut *hw)
157 DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
159 DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
163 hr = glue (IFACE, _Stop) (ds->FIELD);
165 dsound_logerr (hr, "Could not stop " NAME "\n");
168 hr = glue (IFACE, _Release) (ds->FIELD);
170 dsound_logerr (hr, "Could not release " NAME "\n");
177 static int dsound_init_in (HWVoiceIn *hw, struct audsettings *as)
179 static int dsound_init_out (HWVoiceOut *hw, struct audsettings *as)
184 dsound *s = &glob_dsound;
186 struct audsettings obt_as;
188 const char *typ = "ADC";
189 DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
193 const char *typ = "DAC";
194 DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
200 dolog ("Attempt to initialize voice without " NAME2 " object\n");
204 err = waveformat_from_audio_settings (&wfx, as);
209 memset (&bd, 0, sizeof (bd));
210 bd.dwSize = sizeof (bd);
211 bd.lpwfxFormat = &wfx;
213 bd.dwBufferBytes = conf.bufsize_in;
214 hr = IDirectSoundCapture_CreateCaptureBuffer (
217 &ds->dsound_capture_buffer,
221 bd.dwFlags = DSBCAPS_STICKYFOCUS | DSBCAPS_GETCURRENTPOSITION2;
222 bd.dwBufferBytes = conf.bufsize_out;
223 hr = IDirectSound_CreateSoundBuffer (
232 dsound_logerr2 (hr, typ, "Could not create " NAME "\n");
236 hr = glue (IFACE, _GetFormat) (ds->FIELD, &wfx, sizeof (wfx), NULL);
238 dsound_logerr2 (hr, typ, "Could not get " NAME " format\n");
244 print_wave_format (&wfx);
247 memset (&bc, 0, sizeof (bc));
248 bc.dwSize = sizeof (bc);
250 hr = glue (IFACE, _GetCaps) (ds->FIELD, &bc);
252 dsound_logerr2 (hr, typ, "Could not get " NAME " format\n");
256 err = waveformat_to_audio_settings (&wfx, &obt_as);
262 obt_as.endianness = 0;
263 audio_pcm_init_info (&hw->info, &obt_as);
265 if (bc.dwBufferBytes & hw->info.align) {
267 "GetCaps returned misaligned buffer size %ld, alignment %d\n",
268 bc.dwBufferBytes, hw->info.align + 1
271 hw->samples = bc.dwBufferBytes >> hw->info.shift;
274 dolog ("caps %ld, desc %ld\n",
275 bc.dwBufferBytes, bd.dwBufferBytes);
277 dolog ("bufsize %d, freq %d, chan %d, fmt %d\n",
278 hw->bufsize, settings.freq, settings.nchannels, settings.fmt);
283 glue (dsound_fini_, TYPE) (hw);