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,
76 LPVOID p1 = NULL, p2 = NULL;
77 DWORD blen1 = 0, blen2 = 0;
79 DSoundConf *conf = &s->conf;
82 flag = entire ? DSCBLOCK_ENTIREBUFFER : 0;
84 flag = entire ? DSBLOCK_ENTIREBUFFER : 0;
86 for (i = 0; i < conf->lock_retries; ++i) {
87 hr = glue (IFACE, _Lock) (
100 if (hr == DSERR_BUFFERLOST) {
101 if (glue (dsound_restore_, TYPE) (buf, s)) {
102 dsound_logerr (hr, "Could not lock " NAME "\n");
108 dsound_logerr (hr, "Could not lock " NAME "\n");
115 if (i == conf->lock_retries) {
116 dolog ("%d attempts to lock " NAME " failed\n", i);
120 if ((p1 && (blen1 & info->align)) || (p2 && (blen2 & info->align))) {
121 dolog ("DirectSound returned misaligned buffer %ld %ld\n",
123 glue (dsound_unlock_, TYPE) (buf, p1, p2, blen1, blen2);
128 dolog ("warning: !p1 && blen1=%ld\n", blen1);
133 dolog ("warning: !p2 && blen2=%ld\n", blen2);
152 static void dsound_fini_in (HWVoiceIn *hw)
154 static void dsound_fini_out (HWVoiceOut *hw)
159 DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
161 DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
165 hr = glue (IFACE, _Stop) (ds->FIELD);
167 dsound_logerr (hr, "Could not stop " NAME "\n");
170 hr = glue (IFACE, _Release) (ds->FIELD);
172 dsound_logerr (hr, "Could not release " NAME "\n");
179 static int dsound_init_in(HWVoiceIn *hw, struct audsettings *as,
182 static int dsound_init_out(HWVoiceOut *hw, struct audsettings *as,
188 dsound *s = drv_opaque;
190 struct audsettings obt_as;
191 DSoundConf *conf = &s->conf;
193 const char *typ = "ADC";
194 DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
198 const char *typ = "DAC";
199 DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
205 dolog ("Attempt to initialize voice without " NAME2 " object\n");
209 err = waveformat_from_audio_settings (&wfx, as);
214 memset (&bd, 0, sizeof (bd));
215 bd.dwSize = sizeof (bd);
216 bd.lpwfxFormat = &wfx;
218 bd.dwBufferBytes = conf->bufsize_in;
219 hr = IDirectSoundCapture_CreateCaptureBuffer (
222 &ds->dsound_capture_buffer,
226 bd.dwFlags = DSBCAPS_STICKYFOCUS | DSBCAPS_GETCURRENTPOSITION2;
227 bd.dwBufferBytes = conf->bufsize_out;
228 hr = IDirectSound_CreateSoundBuffer (
237 dsound_logerr2 (hr, typ, "Could not create " NAME "\n");
241 hr = glue (IFACE, _GetFormat) (ds->FIELD, &wfx, sizeof (wfx), NULL);
243 dsound_logerr2 (hr, typ, "Could not get " NAME " format\n");
249 print_wave_format (&wfx);
252 memset (&bc, 0, sizeof (bc));
253 bc.dwSize = sizeof (bc);
255 hr = glue (IFACE, _GetCaps) (ds->FIELD, &bc);
257 dsound_logerr2 (hr, typ, "Could not get " NAME " format\n");
261 err = waveformat_to_audio_settings (&wfx, &obt_as);
267 obt_as.endianness = 0;
268 audio_pcm_init_info (&hw->info, &obt_as);
270 if (bc.dwBufferBytes & hw->info.align) {
272 "GetCaps returned misaligned buffer size %ld, alignment %d\n",
273 bc.dwBufferBytes, hw->info.align + 1
276 hw->samples = bc.dwBufferBytes >> hw->info.shift;
280 dolog ("caps %ld, desc %ld\n",
281 bc.dwBufferBytes, bd.dwBufferBytes);
283 dolog ("bufsize %d, freq %d, chan %d, fmt %d\n",
284 hw->bufsize, settings.freq, settings.nchannels, settings.fmt);
289 glue (dsound_fini_, TYPE) (hw);