root / audio / dsound_template.h @ cbeb0857
History | View | Annotate | Download (6.8 kB)
1 |
/*
|
---|---|
2 |
* QEMU DirectSound audio driver header
|
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 |
#ifdef DSBTYPE_IN
|
25 |
#define NAME "capture buffer" |
26 |
#define TYPE in
|
27 |
#define IFACE IDirectSoundCaptureBuffer
|
28 |
#define BUFPTR LPDIRECTSOUNDCAPTUREBUFFER
|
29 |
#define FIELD dsound_capture_buffer
|
30 |
#else
|
31 |
#define NAME "playback buffer" |
32 |
#define TYPE out
|
33 |
#define IFACE IDirectSoundBuffer
|
34 |
#define BUFPTR LPDIRECTSOUNDBUFFER
|
35 |
#define FIELD dsound_buffer
|
36 |
#endif
|
37 |
|
38 |
static int glue (dsound_unlock_, TYPE) ( |
39 |
BUFPTR buf, |
40 |
LPVOID p1, |
41 |
LPVOID p2, |
42 |
DWORD blen1, |
43 |
DWORD blen2 |
44 |
) |
45 |
{ |
46 |
HRESULT hr; |
47 |
|
48 |
hr = glue (IFACE, _Unlock) (buf, p1, blen1, p2, blen2); |
49 |
if (FAILED (hr)) {
|
50 |
dsound_logerr (hr, "Could not unlock " NAME "\n"); |
51 |
return -1; |
52 |
} |
53 |
|
54 |
return 0; |
55 |
} |
56 |
|
57 |
static int glue (dsound_lock_, TYPE) ( |
58 |
BUFPTR buf, |
59 |
struct audio_pcm_info *info,
|
60 |
DWORD pos, |
61 |
DWORD len, |
62 |
LPVOID *p1p, |
63 |
LPVOID *p2p, |
64 |
DWORD *blen1p, |
65 |
DWORD *blen2p, |
66 |
int entire
|
67 |
) |
68 |
{ |
69 |
HRESULT hr; |
70 |
int i;
|
71 |
LPVOID p1 = NULL, p2 = NULL; |
72 |
DWORD blen1 = 0, blen2 = 0; |
73 |
DWORD flag; |
74 |
|
75 |
#ifdef DSBTYPE_IN
|
76 |
flag = entire ? DSCBLOCK_ENTIREBUFFER : 0;
|
77 |
#else
|
78 |
flag = entire ? DSBLOCK_ENTIREBUFFER : 0;
|
79 |
#endif
|
80 |
for (i = 0; i < conf.lock_retries; ++i) { |
81 |
hr = glue (IFACE, _Lock) ( |
82 |
buf, |
83 |
pos, |
84 |
len, |
85 |
&p1, |
86 |
&blen1, |
87 |
&p2, |
88 |
&blen2, |
89 |
flag |
90 |
); |
91 |
|
92 |
if (FAILED (hr)) {
|
93 |
#ifndef DSBTYPE_IN
|
94 |
if (hr == DSERR_BUFFERLOST) {
|
95 |
if (glue (dsound_restore_, TYPE) (buf)) {
|
96 |
dsound_logerr (hr, "Could not lock " NAME "\n"); |
97 |
goto fail;
|
98 |
} |
99 |
continue;
|
100 |
} |
101 |
#endif
|
102 |
dsound_logerr (hr, "Could not lock " NAME "\n"); |
103 |
goto fail;
|
104 |
} |
105 |
|
106 |
break;
|
107 |
} |
108 |
|
109 |
if (i == conf.lock_retries) {
|
110 |
dolog ("%d attempts to lock " NAME " failed\n", i); |
111 |
goto fail;
|
112 |
} |
113 |
|
114 |
if ((p1 && (blen1 & info->align)) || (p2 && (blen2 & info->align))) {
|
115 |
dolog ("DirectSound returned misaligned buffer %ld %ld\n",
|
116 |
blen1, blen2); |
117 |
glue (dsound_unlock_, TYPE) (buf, p1, p2, blen1, blen2); |
118 |
goto fail;
|
119 |
} |
120 |
|
121 |
if (!p1 && blen1) {
|
122 |
dolog ("warning: !p1 && blen1=%ld\n", blen1);
|
123 |
blen1 = 0;
|
124 |
} |
125 |
|
126 |
if (!p2 && blen2) {
|
127 |
dolog ("warning: !p2 && blen2=%ld\n", blen2);
|
128 |
blen2 = 0;
|
129 |
} |
130 |
|
131 |
*p1p = p1; |
132 |
*p2p = p2; |
133 |
*blen1p = blen1; |
134 |
*blen2p = blen2; |
135 |
return 0; |
136 |
|
137 |
fail:
|
138 |
*p1p = NULL - 1; |
139 |
*p2p = NULL - 1; |
140 |
*blen1p = -1;
|
141 |
*blen2p = -1;
|
142 |
return -1; |
143 |
} |
144 |
|
145 |
#ifdef DSBTYPE_IN
|
146 |
static void dsound_fini_in (HWVoiceIn *hw) |
147 |
#else
|
148 |
static void dsound_fini_out (HWVoiceOut *hw) |
149 |
#endif
|
150 |
{ |
151 |
HRESULT hr; |
152 |
#ifdef DSBTYPE_IN
|
153 |
DSoundVoiceIn *ds = (DSoundVoiceIn *) hw; |
154 |
#else
|
155 |
DSoundVoiceOut *ds = (DSoundVoiceOut *) hw; |
156 |
#endif
|
157 |
|
158 |
if (ds->FIELD) {
|
159 |
hr = glue (IFACE, _Stop) (ds->FIELD); |
160 |
if (FAILED (hr)) {
|
161 |
dsound_logerr (hr, "Could not stop " NAME "\n"); |
162 |
} |
163 |
|
164 |
hr = glue (IFACE, _Release) (ds->FIELD); |
165 |
if (FAILED (hr)) {
|
166 |
dsound_logerr (hr, "Could not release " NAME "\n"); |
167 |
} |
168 |
ds->FIELD = NULL;
|
169 |
} |
170 |
} |
171 |
|
172 |
#ifdef DSBTYPE_IN
|
173 |
static int dsound_init_in (HWVoiceIn *hw, audsettings_t *as) |
174 |
#else
|
175 |
static int dsound_init_out (HWVoiceOut *hw, audsettings_t *as) |
176 |
#endif
|
177 |
{ |
178 |
int err;
|
179 |
HRESULT hr; |
180 |
dsound *s = &glob_dsound; |
181 |
WAVEFORMATEX wfx; |
182 |
audsettings_t obt_as; |
183 |
#ifdef DSBTYPE_IN
|
184 |
const char *typ = "ADC"; |
185 |
DSoundVoiceIn *ds = (DSoundVoiceIn *) hw; |
186 |
DSCBUFFERDESC bd; |
187 |
DSCBCAPS bc; |
188 |
#else
|
189 |
const char *typ = "DAC"; |
190 |
DSoundVoiceOut *ds = (DSoundVoiceOut *) hw; |
191 |
DSBUFFERDESC bd; |
192 |
DSBCAPS bc; |
193 |
#endif
|
194 |
|
195 |
err = waveformat_from_audio_settings (&wfx, as); |
196 |
if (err) {
|
197 |
return -1; |
198 |
} |
199 |
|
200 |
memset (&bd, 0, sizeof (bd)); |
201 |
bd.dwSize = sizeof (bd);
|
202 |
bd.lpwfxFormat = &wfx; |
203 |
#ifdef DSBTYPE_IN
|
204 |
bd.dwBufferBytes = conf.bufsize_in; |
205 |
hr = IDirectSoundCapture_CreateCaptureBuffer ( |
206 |
s->dsound_capture, |
207 |
&bd, |
208 |
&ds->dsound_capture_buffer, |
209 |
NULL
|
210 |
); |
211 |
#else
|
212 |
bd.dwFlags = DSBCAPS_STICKYFOCUS | DSBCAPS_GETCURRENTPOSITION2; |
213 |
bd.dwBufferBytes = conf.bufsize_out; |
214 |
hr = IDirectSound_CreateSoundBuffer ( |
215 |
s->dsound, |
216 |
&bd, |
217 |
&ds->dsound_buffer, |
218 |
NULL
|
219 |
); |
220 |
#endif
|
221 |
|
222 |
if (FAILED (hr)) {
|
223 |
dsound_logerr2 (hr, typ, "Could not create " NAME "\n"); |
224 |
return -1; |
225 |
} |
226 |
|
227 |
hr = glue (IFACE, _GetFormat) (ds->FIELD, &wfx, sizeof (wfx), NULL); |
228 |
if (FAILED (hr)) {
|
229 |
dsound_logerr2 (hr, typ, "Could not get " NAME " format\n"); |
230 |
goto fail0;
|
231 |
} |
232 |
|
233 |
#ifdef DEBUG_DSOUND
|
234 |
dolog (NAME "\n");
|
235 |
print_wave_format (&wfx); |
236 |
#endif
|
237 |
|
238 |
memset (&bc, 0, sizeof (bc)); |
239 |
bc.dwSize = sizeof (bc);
|
240 |
|
241 |
hr = glue (IFACE, _GetCaps) (ds->FIELD, &bc); |
242 |
if (FAILED (hr)) {
|
243 |
dsound_logerr2 (hr, typ, "Could not get " NAME " format\n"); |
244 |
goto fail0;
|
245 |
} |
246 |
|
247 |
err = waveformat_to_audio_settings (&wfx, &obt_as); |
248 |
if (err) {
|
249 |
goto fail0;
|
250 |
} |
251 |
|
252 |
ds->first_time = 1;
|
253 |
obt_as.endianness = 0;
|
254 |
audio_pcm_init_info (&hw->info, &obt_as); |
255 |
|
256 |
if (bc.dwBufferBytes & hw->info.align) {
|
257 |
dolog ( |
258 |
"GetCaps returned misaligned buffer size %ld, alignment %d\n",
|
259 |
bc.dwBufferBytes, hw->info.align + 1
|
260 |
); |
261 |
} |
262 |
hw->samples = bc.dwBufferBytes >> hw->info.shift; |
263 |
|
264 |
#ifdef DEBUG_DSOUND
|
265 |
dolog ("caps %ld, desc %ld\n",
|
266 |
bc.dwBufferBytes, bd.dwBufferBytes); |
267 |
|
268 |
dolog ("bufsize %d, freq %d, chan %d, fmt %d\n",
|
269 |
hw->bufsize, settings.freq, settings.nchannels, settings.fmt); |
270 |
#endif
|
271 |
return 0; |
272 |
|
273 |
fail0:
|
274 |
glue (dsound_fini_, TYPE) (hw); |
275 |
return -1; |
276 |
} |
277 |
|
278 |
#undef NAME
|
279 |
#undef TYPE
|
280 |
#undef IFACE
|
281 |
#undef BUFPTR
|
282 |
#undef FIELD
|