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Don't error when querying unknown enums for the channel config and sample format
[openal-soft.git] / Alc / ALc.c
blob52ba680196d10a9c7c137620100cebe89c73c5fb
1 /**
2 * OpenAL cross platform audio library
3 * Copyright (C) 1999-2007 by authors.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
18 * Or go to http://www.gnu.org/copyleft/lgpl.html
19 */
20
21 #include "config.h"
22
23 #include <math.h>
24 #include <stdlib.h>
25 #include <stdio.h>
26 #include <memory.h>
27 #include <ctype.h>
28 #include <signal.h>
29
30 #include "alMain.h"
31 #include "alSource.h"
32 #include "AL/al.h"
33 #include "AL/alc.h"
34 #include "alThunk.h"
35 #include "alSource.h"
36 #include "alBuffer.h"
37 #include "alAuxEffectSlot.h"
38 #include "alError.h"
39 #include "bs2b.h"
40 #include "alu.h"
41
42
43 #define EmptyFuncs { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
44 static struct BackendInfo BackendList[] = {
45 #ifdef HAVE_PULSEAUDIO
46 { "pulse", alc_pulse_init, alc_pulse_deinit, alc_pulse_probe, EmptyFuncs },
47 #endif
48 #ifdef HAVE_ALSA
49 { "alsa", alc_alsa_init, alc_alsa_deinit, alc_alsa_probe, EmptyFuncs },
50 #endif
51 #ifdef HAVE_COREAUDIO
52 { "core", alc_ca_init, alc_ca_deinit, alc_ca_probe, EmptyFuncs },
53 #endif
54 #ifdef HAVE_OSS
55 { "oss", alc_oss_init, alc_oss_deinit, alc_oss_probe, EmptyFuncs },
56 #endif
57 #ifdef HAVE_SOLARIS
58 { "solaris", alc_solaris_init, alc_solaris_deinit, alc_solaris_probe, EmptyFuncs },
59 #endif
60 #ifdef HAVE_SNDIO
61 { "sndio", alc_sndio_init, alc_sndio_deinit, alc_sndio_probe, EmptyFuncs },
62 #endif
63 #ifdef HAVE_MMDEVAPI
64 { "mmdevapi", alcMMDevApiInit, alcMMDevApiDeinit, alcMMDevApiProbe, EmptyFuncs },
65 #endif
66 #ifdef HAVE_DSOUND
67 { "dsound", alcDSoundInit, alcDSoundDeinit, alcDSoundProbe, EmptyFuncs },
68 #endif
69 #ifdef HAVE_WINMM
70 { "winmm", alcWinMMInit, alcWinMMDeinit, alcWinMMProbe, EmptyFuncs },
71 #endif
72 #ifdef HAVE_PORTAUDIO
73 { "port", alc_pa_init, alc_pa_deinit, alc_pa_probe, EmptyFuncs },
74 #endif
75 #ifdef HAVE_OPENSL
76 { "opensl", alc_opensl_init, alc_opensl_deinit, alc_opensl_probe, EmptyFuncs },
77 #endif
78
79 { "null", alc_null_init, alc_null_deinit, alc_null_probe, EmptyFuncs },
80 #ifdef HAVE_WAVE
81 { "wave", alc_wave_init, alc_wave_deinit, alc_wave_probe, EmptyFuncs },
82 #endif
83
84 { NULL, NULL, NULL, NULL, EmptyFuncs }
85 };
86 static struct BackendInfo BackendLoopback = {
87 "loopback", alc_loopback_init, alc_loopback_deinit, alc_loopback_probe, EmptyFuncs
88 };
89 #undef EmptyFuncs
90
91 static struct BackendInfo PlaybackBackend;
92 static struct BackendInfo CaptureBackend;
93
94 ///////////////////////////////////////////////////////
95 // STRING and EXTENSIONS
96
97 typedef struct ALCfunction {
98 const ALCchar *funcName;
99 ALCvoid *address;
100 } ALCfunction;
101
102 typedef struct ALCenums {
103 const ALCchar *enumName;
104 ALCenum value;
105 } ALCenums;
106
107
108 static const ALCfunction alcFunctions[] = {
109 { "alcCreateContext", (ALCvoid *) alcCreateContext },
110 { "alcMakeContextCurrent", (ALCvoid *) alcMakeContextCurrent },
111 { "alcProcessContext", (ALCvoid *) alcProcessContext },
112 { "alcSuspendContext", (ALCvoid *) alcSuspendContext },
113 { "alcDestroyContext", (ALCvoid *) alcDestroyContext },
114 { "alcGetCurrentContext", (ALCvoid *) alcGetCurrentContext },
115 { "alcGetContextsDevice", (ALCvoid *) alcGetContextsDevice },
116 { "alcOpenDevice", (ALCvoid *) alcOpenDevice },
117 { "alcCloseDevice", (ALCvoid *) alcCloseDevice },
118 { "alcGetError", (ALCvoid *) alcGetError },
119 { "alcIsExtensionPresent", (ALCvoid *) alcIsExtensionPresent },
120 { "alcGetProcAddress", (ALCvoid *) alcGetProcAddress },
121 { "alcGetEnumValue", (ALCvoid *) alcGetEnumValue },
122 { "alcGetString", (ALCvoid *) alcGetString },
123 { "alcGetIntegerv", (ALCvoid *) alcGetIntegerv },
124 { "alcCaptureOpenDevice", (ALCvoid *) alcCaptureOpenDevice },
125 { "alcCaptureCloseDevice", (ALCvoid *) alcCaptureCloseDevice },
126 { "alcCaptureStart", (ALCvoid *) alcCaptureStart },
127 { "alcCaptureStop", (ALCvoid *) alcCaptureStop },
128 { "alcCaptureSamples", (ALCvoid *) alcCaptureSamples },
129
130 { "alcSetThreadContext", (ALCvoid *) alcSetThreadContext },
131 { "alcGetThreadContext", (ALCvoid *) alcGetThreadContext },
132
133 { "alcLoopbackOpenDeviceSOFT", (ALCvoid *) alcLoopbackOpenDeviceSOFT},
134 { "alcIsRenderFormatSupportedSOFT",(ALCvoid *) alcIsRenderFormatSupportedSOFT},
135 { "alcRenderSamplesSOFT", (ALCvoid *) alcRenderSamplesSOFT },
136
137 { "alEnable", (ALCvoid *) alEnable },
138 { "alDisable", (ALCvoid *) alDisable },
139 { "alIsEnabled", (ALCvoid *) alIsEnabled },
140 { "alGetString", (ALCvoid *) alGetString },
141 { "alGetBooleanv", (ALCvoid *) alGetBooleanv },
142 { "alGetIntegerv", (ALCvoid *) alGetIntegerv },
143 { "alGetFloatv", (ALCvoid *) alGetFloatv },
144 { "alGetDoublev", (ALCvoid *) alGetDoublev },
145 { "alGetBoolean", (ALCvoid *) alGetBoolean },
146 { "alGetInteger", (ALCvoid *) alGetInteger },
147 { "alGetFloat", (ALCvoid *) alGetFloat },
148 { "alGetDouble", (ALCvoid *) alGetDouble },
149 { "alGetError", (ALCvoid *) alGetError },
150 { "alIsExtensionPresent", (ALCvoid *) alIsExtensionPresent },
151 { "alGetProcAddress", (ALCvoid *) alGetProcAddress },
152 { "alGetEnumValue", (ALCvoid *) alGetEnumValue },
153 { "alListenerf", (ALCvoid *) alListenerf },
154 { "alListener3f", (ALCvoid *) alListener3f },
155 { "alListenerfv", (ALCvoid *) alListenerfv },
156 { "alListeneri", (ALCvoid *) alListeneri },
157 { "alListener3i", (ALCvoid *) alListener3i },
158 { "alListeneriv", (ALCvoid *) alListeneriv },
159 { "alGetListenerf", (ALCvoid *) alGetListenerf },
160 { "alGetListener3f", (ALCvoid *) alGetListener3f },
161 { "alGetListenerfv", (ALCvoid *) alGetListenerfv },
162 { "alGetListeneri", (ALCvoid *) alGetListeneri },
163 { "alGetListener3i", (ALCvoid *) alGetListener3i },
164 { "alGetListeneriv", (ALCvoid *) alGetListeneriv },
165 { "alGenSources", (ALCvoid *) alGenSources },
166 { "alDeleteSources", (ALCvoid *) alDeleteSources },
167 { "alIsSource", (ALCvoid *) alIsSource },
168 { "alSourcef", (ALCvoid *) alSourcef },
169 { "alSource3f", (ALCvoid *) alSource3f },
170 { "alSourcefv", (ALCvoid *) alSourcefv },
171 { "alSourcei", (ALCvoid *) alSourcei },
172 { "alSource3i", (ALCvoid *) alSource3i },
173 { "alSourceiv", (ALCvoid *) alSourceiv },
174 { "alGetSourcef", (ALCvoid *) alGetSourcef },
175 { "alGetSource3f", (ALCvoid *) alGetSource3f },
176 { "alGetSourcefv", (ALCvoid *) alGetSourcefv },
177 { "alGetSourcei", (ALCvoid *) alGetSourcei },
178 { "alGetSource3i", (ALCvoid *) alGetSource3i },
179 { "alGetSourceiv", (ALCvoid *) alGetSourceiv },
180 { "alSourcePlayv", (ALCvoid *) alSourcePlayv },
181 { "alSourceStopv", (ALCvoid *) alSourceStopv },
182 { "alSourceRewindv", (ALCvoid *) alSourceRewindv },
183 { "alSourcePausev", (ALCvoid *) alSourcePausev },
184 { "alSourcePlay", (ALCvoid *) alSourcePlay },
185 { "alSourceStop", (ALCvoid *) alSourceStop },
186 { "alSourceRewind", (ALCvoid *) alSourceRewind },
187 { "alSourcePause", (ALCvoid *) alSourcePause },
188 { "alSourceQueueBuffers", (ALCvoid *) alSourceQueueBuffers },
189 { "alSourceUnqueueBuffers", (ALCvoid *) alSourceUnqueueBuffers },
190 { "alGenBuffers", (ALCvoid *) alGenBuffers },
191 { "alDeleteBuffers", (ALCvoid *) alDeleteBuffers },
192 { "alIsBuffer", (ALCvoid *) alIsBuffer },
193 { "alBufferData", (ALCvoid *) alBufferData },
194 { "alBufferf", (ALCvoid *) alBufferf },
195 { "alBuffer3f", (ALCvoid *) alBuffer3f },
196 { "alBufferfv", (ALCvoid *) alBufferfv },
197 { "alBufferi", (ALCvoid *) alBufferi },
198 { "alBuffer3i", (ALCvoid *) alBuffer3i },
199 { "alBufferiv", (ALCvoid *) alBufferiv },
200 { "alGetBufferf", (ALCvoid *) alGetBufferf },
201 { "alGetBuffer3f", (ALCvoid *) alGetBuffer3f },
202 { "alGetBufferfv", (ALCvoid *) alGetBufferfv },
203 { "alGetBufferi", (ALCvoid *) alGetBufferi },
204 { "alGetBuffer3i", (ALCvoid *) alGetBuffer3i },
205 { "alGetBufferiv", (ALCvoid *) alGetBufferiv },
206 { "alDopplerFactor", (ALCvoid *) alDopplerFactor },
207 { "alDopplerVelocity", (ALCvoid *) alDopplerVelocity },
208 { "alSpeedOfSound", (ALCvoid *) alSpeedOfSound },
209 { "alDistanceModel", (ALCvoid *) alDistanceModel },
210
211 { "alGenFilters", (ALCvoid *) alGenFilters },
212 { "alDeleteFilters", (ALCvoid *) alDeleteFilters },
213 { "alIsFilter", (ALCvoid *) alIsFilter },
214 { "alFilteri", (ALCvoid *) alFilteri },
215 { "alFilteriv", (ALCvoid *) alFilteriv },
216 { "alFilterf", (ALCvoid *) alFilterf },
217 { "alFilterfv", (ALCvoid *) alFilterfv },
218 { "alGetFilteri", (ALCvoid *) alGetFilteri },
219 { "alGetFilteriv", (ALCvoid *) alGetFilteriv },
220 { "alGetFilterf", (ALCvoid *) alGetFilterf },
221 { "alGetFilterfv", (ALCvoid *) alGetFilterfv },
222 { "alGenEffects", (ALCvoid *) alGenEffects },
223 { "alDeleteEffects", (ALCvoid *) alDeleteEffects },
224 { "alIsEffect", (ALCvoid *) alIsEffect },
225 { "alEffecti", (ALCvoid *) alEffecti },
226 { "alEffectiv", (ALCvoid *) alEffectiv },
227 { "alEffectf", (ALCvoid *) alEffectf },
228 { "alEffectfv", (ALCvoid *) alEffectfv },
229 { "alGetEffecti", (ALCvoid *) alGetEffecti },
230 { "alGetEffectiv", (ALCvoid *) alGetEffectiv },
231 { "alGetEffectf", (ALCvoid *) alGetEffectf },
232 { "alGetEffectfv", (ALCvoid *) alGetEffectfv },
233 { "alGenAuxiliaryEffectSlots", (ALCvoid *) alGenAuxiliaryEffectSlots},
234 { "alDeleteAuxiliaryEffectSlots",(ALCvoid *) alDeleteAuxiliaryEffectSlots},
235 { "alIsAuxiliaryEffectSlot", (ALCvoid *) alIsAuxiliaryEffectSlot },
236 { "alAuxiliaryEffectSloti", (ALCvoid *) alAuxiliaryEffectSloti },
237 { "alAuxiliaryEffectSlotiv", (ALCvoid *) alAuxiliaryEffectSlotiv },
238 { "alAuxiliaryEffectSlotf", (ALCvoid *) alAuxiliaryEffectSlotf },
239 { "alAuxiliaryEffectSlotfv", (ALCvoid *) alAuxiliaryEffectSlotfv },
240 { "alGetAuxiliaryEffectSloti", (ALCvoid *) alGetAuxiliaryEffectSloti},
241 { "alGetAuxiliaryEffectSlotiv", (ALCvoid *) alGetAuxiliaryEffectSlotiv},
242 { "alGetAuxiliaryEffectSlotf", (ALCvoid *) alGetAuxiliaryEffectSlotf},
243 { "alGetAuxiliaryEffectSlotfv", (ALCvoid *) alGetAuxiliaryEffectSlotfv},
244
245 { "alBufferSubDataSOFT", (ALCvoid *) alBufferSubDataSOFT },
246
247 { "alBufferSamplesSOFT", (ALCvoid *) alBufferSamplesSOFT },
248 { "alBufferSubSamplesSOFT", (ALCvoid *) alBufferSubSamplesSOFT },
249 { "alGetBufferSamplesSOFT", (ALCvoid *) alGetBufferSamplesSOFT },
250 { "alIsBufferFormatSupportedSOFT",(ALCvoid *) alIsBufferFormatSupportedSOFT},
251
252 { "alDeferUpdatesSOFT", (ALCvoid *) alDeferUpdatesSOFT },
253 { "alProcessUpdatesSOFT", (ALCvoid *) alProcessUpdatesSOFT },
254
255 { NULL, (ALCvoid *) NULL }
256 };
257
258 static const ALCenums enumeration[] = {
259 // Types
260 { "ALC_INVALID", ALC_INVALID },
261 { "ALC_FALSE", ALC_FALSE },
262 { "ALC_TRUE", ALC_TRUE },
263
264 // ALC Properties
265 { "ALC_MAJOR_VERSION", ALC_MAJOR_VERSION },
266 { "ALC_MINOR_VERSION", ALC_MINOR_VERSION },
267 { "ALC_ATTRIBUTES_SIZE", ALC_ATTRIBUTES_SIZE },
268 { "ALC_ALL_ATTRIBUTES", ALC_ALL_ATTRIBUTES },
269 { "ALC_DEFAULT_DEVICE_SPECIFIER", ALC_DEFAULT_DEVICE_SPECIFIER },
270 { "ALC_DEVICE_SPECIFIER", ALC_DEVICE_SPECIFIER },
271 { "ALC_ALL_DEVICES_SPECIFIER", ALC_ALL_DEVICES_SPECIFIER },
272 { "ALC_DEFAULT_ALL_DEVICES_SPECIFIER", ALC_DEFAULT_ALL_DEVICES_SPECIFIER },
273 { "ALC_EXTENSIONS", ALC_EXTENSIONS },
274 { "ALC_FREQUENCY", ALC_FREQUENCY },
275 { "ALC_REFRESH", ALC_REFRESH },
276 { "ALC_SYNC", ALC_SYNC },
277 { "ALC_MONO_SOURCES", ALC_MONO_SOURCES },
278 { "ALC_STEREO_SOURCES", ALC_STEREO_SOURCES },
279 { "ALC_CAPTURE_DEVICE_SPECIFIER", ALC_CAPTURE_DEVICE_SPECIFIER },
280 { "ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER", ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER},
281 { "ALC_CAPTURE_SAMPLES", ALC_CAPTURE_SAMPLES },
282 { "ALC_CONNECTED", ALC_CONNECTED },
283
284 // EFX Properties
285 { "ALC_EFX_MAJOR_VERSION", ALC_EFX_MAJOR_VERSION },
286 { "ALC_EFX_MINOR_VERSION", ALC_EFX_MINOR_VERSION },
287 { "ALC_MAX_AUXILIARY_SENDS", ALC_MAX_AUXILIARY_SENDS },
288
289 // Loopback device Properties
290 { "ALC_FORMAT_CHANNELS_SOFT", ALC_FORMAT_CHANNELS_SOFT },
291 { "ALC_FORMAT_TYPE_SOFT", ALC_FORMAT_TYPE_SOFT },
292
293 // Buffer Channel Configurations
294 { "ALC_MONO_SOFT", ALC_MONO_SOFT },
295 { "ALC_STEREO_SOFT", ALC_STEREO_SOFT },
296 { "ALC_QUAD_SOFT", ALC_QUAD_SOFT },
297 { "ALC_5POINT1_SOFT", ALC_5POINT1_SOFT },
298 { "ALC_6POINT1_SOFT", ALC_6POINT1_SOFT },
299 { "ALC_7POINT1_SOFT", ALC_7POINT1_SOFT },
300
301 // Buffer Sample Types
302 { "ALC_BYTE_SOFT", ALC_BYTE_SOFT },
303 { "ALC_UNSIGNED_BYTE_SOFT", ALC_UNSIGNED_BYTE_SOFT },
304 { "ALC_SHORT_SOFT", ALC_SHORT_SOFT },
305 { "ALC_UNSIGNED_SHORT_SOFT", ALC_UNSIGNED_SHORT_SOFT },
306 { "ALC_INT_SOFT", ALC_INT_SOFT },
307 { "ALC_UNSIGNED_INT_SOFT", ALC_UNSIGNED_INT_SOFT },
308 { "ALC_FLOAT_SOFT", ALC_FLOAT_SOFT },
309
310 // ALC Error Message
311 { "ALC_NO_ERROR", ALC_NO_ERROR },
312 { "ALC_INVALID_DEVICE", ALC_INVALID_DEVICE },
313 { "ALC_INVALID_CONTEXT", ALC_INVALID_CONTEXT },
314 { "ALC_INVALID_ENUM", ALC_INVALID_ENUM },
315 { "ALC_INVALID_VALUE", ALC_INVALID_VALUE },
316 { "ALC_OUT_OF_MEMORY", ALC_OUT_OF_MEMORY },
317
318 { NULL, (ALCenum)0 }
319 };
320 // Error strings
321 static const ALCchar alcNoError[] = "No Error";
322 static const ALCchar alcErrInvalidDevice[] = "Invalid Device";
323 static const ALCchar alcErrInvalidContext[] = "Invalid Context";
324 static const ALCchar alcErrInvalidEnum[] = "Invalid Enum";
325 static const ALCchar alcErrInvalidValue[] = "Invalid Value";
326 static const ALCchar alcErrOutOfMemory[] = "Out of Memory";
327
328 /* Device lists. Sizes only include the first ending null character, not the
329 * second */
330 static const ALCchar alcDefaultName[] = "OpenAL Soft\0";
331 static ALCchar *alcAllDeviceList;
332 static size_t alcAllDeviceListSize;
333 static ALCchar *alcCaptureDeviceList;
334 static size_t alcCaptureDeviceListSize;
335 /* Default is always the first in the list */
336 static ALCchar *alcDefaultAllDeviceSpecifier;
337 static ALCchar *alcCaptureDefaultDeviceSpecifier;
338
339
340 static const ALCchar alcNoDeviceExtList[] =
341 "ALC_ENUMERATE_ALL_EXT ALC_ENUMERATION_EXT ALC_EXT_CAPTURE "
342 "ALC_EXT_thread_local_context ALC_SOFT_loopback";
343 static const ALCchar alcExtensionList[] =
344 "ALC_ENUMERATE_ALL_EXT ALC_ENUMERATION_EXT ALC_EXT_CAPTURE "
345 "ALC_EXT_DEDICATED ALC_EXT_disconnect ALC_EXT_EFX "
346 "ALC_EXT_thread_local_context ALC_SOFT_loopback";
347 static const ALCint alcMajorVersion = 1;
348 static const ALCint alcMinorVersion = 1;
349
350 static const ALCint alcEFXMajorVersion = 1;
351 static const ALCint alcEFXMinorVersion = 0;
352
353 ///////////////////////////////////////////////////////
354
355
356 ///////////////////////////////////////////////////////
357 // Global Variables
358
359 static CRITICAL_SECTION ListLock;
360
361 /* Device List */
362 static ALCdevice *volatile DeviceList = NULL;
363
364 // Thread-local current context
365 static pthread_key_t LocalContext;
366 // Process-wide current context
367 static ALCcontext *volatile GlobalContext = NULL;
368
369 /* Device Error */
370 static volatile ALCenum g_eLastNullDeviceError = ALC_NO_ERROR;
371
372 // Default context extensions
373 static const ALchar alExtList[] =
374 "AL_EXT_ALAW AL_EXT_DOUBLE AL_EXT_EXPONENT_DISTANCE AL_EXT_FLOAT32 "
375 "AL_EXT_IMA4 AL_EXT_LINEAR_DISTANCE AL_EXT_MCFORMATS AL_EXT_MULAW "
376 "AL_EXT_MULAW_MCFORMATS AL_EXT_OFFSET AL_EXT_source_distance_model "
377 "AL_LOKI_quadriphonic AL_SOFT_buffer_samples AL_SOFT_buffer_sub_data "
378 "AL_SOFTX_deferred_updates AL_SOFT_direct_channels AL_SOFT_loop_points";
379
380 // Mixing Priority Level
381 ALint RTPrioLevel;
382
383 // Output Log File
384 FILE *LogFile;
385
386 // Output Log Level
387 #ifdef _DEBUG
388 enum LogLevel LogLevel = LogWarning;
389 #else
390 enum LogLevel LogLevel = LogError;
391 #endif
392
393 /* Flag to trap ALC device errors */
394 static ALCboolean TrapALCError = ALC_FALSE;
395
396 /* One-time configuration init control */
397 static pthread_once_t alc_config_once = PTHREAD_ONCE_INIT;
398
399 /* Forced effect that applies to sources that don't have an effect on send 0 */
400 static ALeffect DefaultEffect;
401
402 ///////////////////////////////////////////////////////
403
404
405 ///////////////////////////////////////////////////////
406 // ALC Related helper functions
407 static void ReleaseALC(void);
408 static void ReleaseThreadCtx(void *ptr);
409
410 static void alc_initconfig(void);
411 #define DO_INITCONFIG() pthread_once(&alc_config_once, alc_initconfig)
412
413 #if defined(_WIN32)
414 static void alc_init(void);
415 static void alc_deinit(void);
416 static void alc_deinit_safe(void);
417
418 UIntMap TlsDestructor;
419
420 #ifndef AL_LIBTYPE_STATIC
421 BOOL APIENTRY DllMain(HINSTANCE hModule,DWORD ul_reason_for_call,LPVOID lpReserved)
422 {
423 ALsizei i;
424
425 // Perform actions based on the reason for calling.
426 switch(ul_reason_for_call)
427 {
428 case DLL_PROCESS_ATTACH:
429 /* Pin the DLL so we won't get unloaded until the process terminates */
430 GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_PIN | GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS,
431 (WCHAR*)hModule, &hModule);
432 InitUIntMap(&TlsDestructor, ~0);
433 alc_init();
434 break;
435
436 case DLL_THREAD_DETACH:
437 LockUIntMapRead(&TlsDestructor);
438 for(i = 0;i < TlsDestructor.size;i++)
439 {
440 void *ptr = pthread_getspecific(TlsDestructor.array[i].key);
441 void (*callback)(void*) = (void(*)(void*))TlsDestructor.array[i].value;
442 if(ptr && callback)
443 callback(ptr);
444 }
445 UnlockUIntMapRead(&TlsDestructor);
446 break;
447
448 case DLL_PROCESS_DETACH:
449 if(!lpReserved)
450 alc_deinit();
451 else
452 alc_deinit_safe();
453 ResetUIntMap(&TlsDestructor);
454 break;
455 }
456 return TRUE;
457 }
458 #elif defined(_MSC_VER)
459 #pragma section(".CRT$XCU",read)
460 static void alc_constructor(void);
461 static void alc_destructor(void);
462 __declspec(allocate(".CRT$XCU")) void (__cdecl* alc_constructor_)(void) = alc_constructor;
463
464 static void alc_constructor(void)
465 {
466 atexit(alc_destructor);
467 alc_init();
468 }
469
470 static void alc_destructor(void)
471 {
472 alc_deinit();
473 }
474 #elif defined(HAVE_GCC_DESTRUCTOR)
475 static void alc_init(void) __attribute__((constructor));
476 static void alc_deinit(void) __attribute__((destructor));
477 #else
478 #error "No static initialization available on this platform!"
479 #endif
480 #elif defined(HAVE_GCC_DESTRUCTOR)
481 static void alc_init(void) __attribute__((constructor));
482 static void alc_deinit(void) __attribute__((destructor));
483 #else
484 #error "No global initialization available on this platform!"
485 #endif
486
487 static void alc_init(void)
488 {
489 const char *str;
490
491 LogFile = stderr;
492
493 str = getenv("__ALSOFT_HALF_ANGLE_CONES");
494 if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1))
495 ConeScale = 1.0f;
496
497 str = getenv("__ALSOFT_REVERSE_Z");
498 if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1))
499 ZScale = -1.0f;
500
501 str = getenv("ALSOFT_TRAP_ERROR");
502 if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1))
503 {
504 TrapALError = AL_TRUE;
505 TrapALCError = AL_TRUE;
506 }
507 else
508 {
509 str = getenv("ALSOFT_TRAP_AL_ERROR");
510 if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1))
511 TrapALError = AL_TRUE;
512
513 str = getenv("ALSOFT_TRAP_ALC_ERROR");
514 if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1))
515 TrapALCError = ALC_TRUE;
516 }
517
518 pthread_key_create(&LocalContext, ReleaseThreadCtx);
519 InitializeCriticalSection(&ListLock);
520 ThunkInit();
521 }
522
523 static void alc_deinit_safe(void)
524 {
525 ReleaseALC();
526
527 FreeHrtf();
528 FreeALConfig();
529
530 ThunkExit();
531 DeleteCriticalSection(&ListLock);
532 pthread_key_delete(LocalContext);
533
534 if(LogFile != stderr)
535 fclose(LogFile);
536 LogFile = NULL;
537 }
538
539 static void alc_deinit(void)
540 {
541 int i;
542
543 ReleaseALC();
544
545 memset(&PlaybackBackend, 0, sizeof(PlaybackBackend));
546 memset(&CaptureBackend, 0, sizeof(CaptureBackend));
547
548 for(i = 0;BackendList[i].Deinit;i++)
549 BackendList[i].Deinit();
550 BackendLoopback.Deinit();
551
552 alc_deinit_safe();
553 }
554
555 static void alc_initconfig(void)
556 {
557 const char *devs, *str;
558 float valf;
559 int i, n;
560
561 str = getenv("ALSOFT_LOGLEVEL");
562 if(str)
563 {
564 long lvl = strtol(str, NULL, 0);
565 if(lvl >= NoLog && lvl <= LogRef)
566 LogLevel = lvl;
567 }
568
569 str = getenv("ALSOFT_LOGFILE");
570 if(str && str[0])
571 {
572 FILE *logfile = fopen(str, "wat");
573 if(logfile) LogFile = logfile;
574 else ERR("Failed to open log file '%s'\n", str);
575 }
576
577 ReadALConfig();
578
579 InitHrtf();
580
581 #ifdef _WIN32
582 RTPrioLevel = 1;
583 #else
584 RTPrioLevel = 0;
585 #endif
586 ConfigValueInt(NULL, "rt-prio", &RTPrioLevel);
587
588 if(ConfigValueStr(NULL, "resampler", &str))
589 {
590 if(strcasecmp(str, "point") == 0 || strcasecmp(str, "none") == 0)
591 DefaultResampler = PointResampler;
592 else if(strcasecmp(str, "linear") == 0)
593 DefaultResampler = LinearResampler;
594 else if(strcasecmp(str, "cubic") == 0)
595 DefaultResampler = CubicResampler;
596 else
597 {
598 char *end;
599
600 n = strtol(str, &end, 0);
601 if(*end == '\0' && (n == PointResampler || n == LinearResampler || n == CubicResampler))
602 DefaultResampler = n;
603 else
604 WARN("Invalid resampler: %s\n", str);
605 }
606 }
607
608 if(!TrapALCError)
609 TrapALCError = GetConfigValueBool(NULL, "trap-alc-error", ALC_FALSE);
610
611 if(!TrapALError)
612 TrapALError = GetConfigValueBool(NULL, "trap-al-error", AL_FALSE);
613
614 if(ConfigValueFloat("reverb", "boost", &valf))
615 ReverbBoost *= aluPow(10.0f, valf / 20.0f);
616
617 EmulateEAXReverb = GetConfigValueBool("reverb", "emulate-eax", AL_FALSE);
618
619 if(((devs=getenv("ALSOFT_DRIVERS")) && devs[0]) ||
620 ConfigValueStr(NULL, "drivers", &devs))
621 {
622 int n;
623 size_t len;
624 const char *next = devs;
625 int endlist, delitem;
626
627 i = 0;
628 do {
629 devs = next;
630 next = strchr(devs, ',');
631
632 delitem = (devs[0] == '-');
633 if(devs[0] == '-') devs++;
634
635 if(!devs[0] || devs[0] == ',')
636 {
637 endlist = 0;
638 continue;
639 }
640 endlist = 1;
641
642 len = (next ? ((size_t)(next-devs)) : strlen(devs));
643 for(n = i;BackendList[n].Init;n++)
644 {
645 if(len == strlen(BackendList[n].name) &&
646 strncmp(BackendList[n].name, devs, len) == 0)
647 {
648 if(delitem)
649 {
650 do {
651 BackendList[n] = BackendList[n+1];
652 ++n;
653 } while(BackendList[n].Init);
654 }
655 else
656 {
657 struct BackendInfo Bkp = BackendList[n];
658 while(n > i)
659 {
660 BackendList[n] = BackendList[n-1];
661 --n;
662 }
663 BackendList[n] = Bkp;
664
665 i++;
666 }
667 break;
668 }
669 }
670 } while(next++);
671
672 if(endlist)
673 {
674 BackendList[i].name = NULL;
675 BackendList[i].Init = NULL;
676 BackendList[i].Deinit = NULL;
677 BackendList[i].Probe = NULL;
678 }
679 }
680
681 for(i = 0;BackendList[i].Init && (!PlaybackBackend.name || !CaptureBackend.name);i++)
682 {
683 if(!BackendList[i].Init(&BackendList[i].Funcs))
684 {
685 WARN("Failed to initialize backend \"%s\"\n", BackendList[i].name);
686 continue;
687 }
688
689 TRACE("Initialized backend \"%s\"\n", BackendList[i].name);
690 if(BackendList[i].Funcs.OpenPlayback && !PlaybackBackend.name)
691 {
692 PlaybackBackend = BackendList[i];
693 TRACE("Added \"%s\" for playback\n", PlaybackBackend.name);
694 }
695 if(BackendList[i].Funcs.OpenCapture && !CaptureBackend.name)
696 {
697 CaptureBackend = BackendList[i];
698 TRACE("Added \"%s\" for capture\n", CaptureBackend.name);
699 }
700 }
701 BackendLoopback.Init(&BackendLoopback.Funcs);
702
703 if(ConfigValueStr(NULL, "excludefx", &str))
704 {
705 size_t len;
706 const char *next = str;
707
708 do {
709 str = next;
710 next = strchr(str, ',');
711
712 if(!str[0] || next == str)
713 continue;
714
715 len = (next ? ((size_t)(next-str)) : strlen(str));
716 for(n = 0;EffectList[n].name;n++)
717 {
718 if(len == strlen(EffectList[n].name) &&
719 strncmp(EffectList[n].name, str, len) == 0)
720 DisabledEffects[EffectList[n].type] = AL_TRUE;
721 }
722 } while(next++);
723 }
724
725 InitEffect(&DefaultEffect);
726 str = getenv("ALSOFT_DEFAULT_REVERB");
727 if((str && str[0]) || ConfigValueStr(NULL, "default-reverb", &str))
728 LoadReverbPreset(str, &DefaultEffect);
729 }
730
731
732 static void LockLists(void)
733 {
734 EnterCriticalSection(&ListLock);
735 }
736
737 static void UnlockLists(void)
738 {
739 LeaveCriticalSection(&ListLock);
740 }
741
742
743 static void ProbeList(ALCchar **list, size_t *listsize, enum DevProbe type)
744 {
745 DO_INITCONFIG();
746
747 LockLists();
748 free(*list);
749 *list = NULL;
750 *listsize = 0;
751
752 if(type == ALL_DEVICE_PROBE && PlaybackBackend.Probe)
753 PlaybackBackend.Probe(type);
754 else if(type == CAPTURE_DEVICE_PROBE && CaptureBackend.Probe)
755 CaptureBackend.Probe(type);
756 UnlockLists();
757 }
758
759 static void ProbeAllDeviceList(void)
760 { ProbeList(&alcAllDeviceList, &alcAllDeviceListSize, ALL_DEVICE_PROBE); }
761 static void ProbeCaptureDeviceList(void)
762 { ProbeList(&alcCaptureDeviceList, &alcCaptureDeviceListSize, CAPTURE_DEVICE_PROBE); }
763
764
765 static void AppendList(const ALCchar *name, ALCchar **List, size_t *ListSize)
766 {
767 size_t len = strlen(name);
768 void *temp;
769
770 if(len == 0)
771 return;
772
773 temp = realloc(*List, (*ListSize) + len + 2);
774 if(!temp)
775 {
776 ERR("Realloc failed to add %s!\n", name);
777 return;
778 }
779 *List = temp;
780
781 memcpy((*List)+(*ListSize), name, len+1);
782 *ListSize += len+1;
783 (*List)[*ListSize] = 0;
784 }
785
786 #define DECL_APPEND_LIST_FUNC(type) \
787 void Append##type##List(const ALCchar *name) \
788 { AppendList(name, &alc##type##List, &alc##type##ListSize); }
789
790 DECL_APPEND_LIST_FUNC(AllDevice)
791 DECL_APPEND_LIST_FUNC(CaptureDevice)
792
793 #undef DECL_APPEND_LIST_FUNC
794
795
796 /* Sets the default channel order used by most non-WaveFormatEx-based APIs */
797 void SetDefaultChannelOrder(ALCdevice *device)
798 {
799 switch(device->FmtChans)
800 {
801 case DevFmtX51: device->DevChannels[0] = FRONT_LEFT;
802 device->DevChannels[1] = FRONT_RIGHT;
803 device->DevChannels[2] = BACK_LEFT;
804 device->DevChannels[3] = BACK_RIGHT;
805 device->DevChannels[4] = FRONT_CENTER;
806 device->DevChannels[5] = LFE;
807 return;
808
809 case DevFmtX71: device->DevChannels[0] = FRONT_LEFT;
810 device->DevChannels[1] = FRONT_RIGHT;
811 device->DevChannels[2] = BACK_LEFT;
812 device->DevChannels[3] = BACK_RIGHT;
813 device->DevChannels[4] = FRONT_CENTER;
814 device->DevChannels[5] = LFE;
815 device->DevChannels[6] = SIDE_LEFT;
816 device->DevChannels[7] = SIDE_RIGHT;
817 return;
818
819 /* Same as WFX order */
820 case DevFmtMono:
821 case DevFmtStereo:
822 case DevFmtQuad:
823 case DevFmtX51Side:
824 case DevFmtX61:
825 break;
826 }
827 SetDefaultWFXChannelOrder(device);
828 }
829 /* Sets the default order used by WaveFormatEx */
830 void SetDefaultWFXChannelOrder(ALCdevice *device)
831 {
832 switch(device->FmtChans)
833 {
834 case DevFmtMono: device->DevChannels[0] = FRONT_CENTER; break;
835
836 case DevFmtStereo: device->DevChannels[0] = FRONT_LEFT;
837 device->DevChannels[1] = FRONT_RIGHT; break;
838
839 case DevFmtQuad: device->DevChannels[0] = FRONT_LEFT;
840 device->DevChannels[1] = FRONT_RIGHT;
841 device->DevChannels[2] = BACK_LEFT;
842 device->DevChannels[3] = BACK_RIGHT; break;
843
844 case DevFmtX51: device->DevChannels[0] = FRONT_LEFT;
845 device->DevChannels[1] = FRONT_RIGHT;
846 device->DevChannels[2] = FRONT_CENTER;
847 device->DevChannels[3] = LFE;
848 device->DevChannels[4] = BACK_LEFT;
849 device->DevChannels[5] = BACK_RIGHT; break;
850
851 case DevFmtX51Side: device->DevChannels[0] = FRONT_LEFT;
852 device->DevChannels[1] = FRONT_RIGHT;
853 device->DevChannels[2] = FRONT_CENTER;
854 device->DevChannels[3] = LFE;
855 device->DevChannels[4] = SIDE_LEFT;
856 device->DevChannels[5] = SIDE_RIGHT; break;
857
858 case DevFmtX61: device->DevChannels[0] = FRONT_LEFT;
859 device->DevChannels[1] = FRONT_RIGHT;
860 device->DevChannels[2] = FRONT_CENTER;
861 device->DevChannels[3] = LFE;
862 device->DevChannels[4] = BACK_CENTER;
863 device->DevChannels[5] = SIDE_LEFT;
864 device->DevChannels[6] = SIDE_RIGHT; break;
865
866 case DevFmtX71: device->DevChannels[0] = FRONT_LEFT;
867 device->DevChannels[1] = FRONT_RIGHT;
868 device->DevChannels[2] = FRONT_CENTER;
869 device->DevChannels[3] = LFE;
870 device->DevChannels[4] = BACK_LEFT;
871 device->DevChannels[5] = BACK_RIGHT;
872 device->DevChannels[6] = SIDE_LEFT;
873 device->DevChannels[7] = SIDE_RIGHT; break;
874 }
875 }
876
877
878 const ALCchar *DevFmtTypeString(enum DevFmtType type)
879 {
880 switch(type)
881 {
882 case DevFmtByte: return "Signed Byte";
883 case DevFmtUByte: return "Unsigned Byte";
884 case DevFmtShort: return "Signed Short";
885 case DevFmtUShort: return "Unsigned Short";
886 case DevFmtInt: return "Signed Int";
887 case DevFmtUInt: return "Unsigned Int";
888 case DevFmtFloat: return "Float";
889 }
890 return "(unknown type)";
891 }
892 const ALCchar *DevFmtChannelsString(enum DevFmtChannels chans)
893 {
894 switch(chans)
895 {
896 case DevFmtMono: return "Mono";
897 case DevFmtStereo: return "Stereo";
898 case DevFmtQuad: return "Quadraphonic";
899 case DevFmtX51: return "5.1 Surround";
900 case DevFmtX51Side: return "5.1 Side";
901 case DevFmtX61: return "6.1 Surround";
902 case DevFmtX71: return "7.1 Surround";
903 }
904 return "(unknown channels)";
905 }
906
907 ALuint BytesFromDevFmt(enum DevFmtType type)
908 {
909 switch(type)
910 {
911 case DevFmtByte: return sizeof(ALbyte);
912 case DevFmtUByte: return sizeof(ALubyte);
913 case DevFmtShort: return sizeof(ALshort);
914 case DevFmtUShort: return sizeof(ALushort);
915 case DevFmtInt: return sizeof(ALint);
916 case DevFmtUInt: return sizeof(ALuint);
917 case DevFmtFloat: return sizeof(ALfloat);
918 }
919 return 0;
920 }
921 ALuint ChannelsFromDevFmt(enum DevFmtChannels chans)
922 {
923 switch(chans)
924 {
925 case DevFmtMono: return 1;
926 case DevFmtStereo: return 2;
927 case DevFmtQuad: return 4;
928 case DevFmtX51: return 6;
929 case DevFmtX51Side: return 6;
930 case DevFmtX61: return 7;
931 case DevFmtX71: return 8;
932 }
933 return 0;
934 }
935 static ALboolean DecomposeDevFormat(ALenum format, enum DevFmtChannels *chans,
936 enum DevFmtType *type)
937 {
938 static const struct {
939 ALenum format;
940 enum DevFmtChannels channels;
941 enum DevFmtType type;
942 } list[] = {
943 { AL_FORMAT_MONO8, DevFmtMono, DevFmtUByte },
944 { AL_FORMAT_MONO16, DevFmtMono, DevFmtShort },
945 { AL_FORMAT_MONO_FLOAT32, DevFmtMono, DevFmtFloat },
946
947 { AL_FORMAT_STEREO8, DevFmtStereo, DevFmtUByte },
948 { AL_FORMAT_STEREO16, DevFmtStereo, DevFmtShort },
949 { AL_FORMAT_STEREO_FLOAT32, DevFmtStereo, DevFmtFloat },
950
951 { AL_FORMAT_QUAD8, DevFmtQuad, DevFmtUByte },
952 { AL_FORMAT_QUAD16, DevFmtQuad, DevFmtShort },
953 { AL_FORMAT_QUAD32, DevFmtQuad, DevFmtFloat },
954
955 { AL_FORMAT_51CHN8, DevFmtX51, DevFmtUByte },
956 { AL_FORMAT_51CHN16, DevFmtX51, DevFmtShort },
957 { AL_FORMAT_51CHN32, DevFmtX51, DevFmtFloat },
958
959 { AL_FORMAT_61CHN8, DevFmtX61, DevFmtUByte },
960 { AL_FORMAT_61CHN16, DevFmtX61, DevFmtShort },
961 { AL_FORMAT_61CHN32, DevFmtX61, DevFmtFloat },
962
963 { AL_FORMAT_71CHN8, DevFmtX71, DevFmtUByte },
964 { AL_FORMAT_71CHN16, DevFmtX71, DevFmtShort },
965 { AL_FORMAT_71CHN32, DevFmtX71, DevFmtFloat },
966 };
967 ALuint i;
968
969 for(i = 0;i < COUNTOF(list);i++)
970 {
971 if(list[i].format == format)
972 {
973 *chans = list[i].channels;
974 *type = list[i].type;
975 return AL_TRUE;
976 }
977 }
978
979 return AL_FALSE;
980 }
981
982 static ALCboolean IsValidALCType(ALCenum type)
983 {
984 switch(type)
985 {
986 case ALC_BYTE_SOFT:
987 case ALC_UNSIGNED_BYTE_SOFT:
988 case ALC_SHORT_SOFT:
989 case ALC_UNSIGNED_SHORT_SOFT:
990 case ALC_INT_SOFT:
991 case ALC_UNSIGNED_INT_SOFT:
992 case ALC_FLOAT_SOFT:
993 return ALC_TRUE;
994 }
995 return ALC_FALSE;
996 }
997
998 static ALCboolean IsValidALCChannels(ALCenum channels)
999 {
1000 switch(channels)
1001 {
1002 case ALC_MONO_SOFT:
1003 case ALC_STEREO_SOFT:
1004 case ALC_QUAD_SOFT:
1005 case ALC_5POINT1_SOFT:
1006 case ALC_6POINT1_SOFT:
1007 case ALC_7POINT1_SOFT:
1008 return ALC_TRUE;
1009 }
1010 return ALC_FALSE;
1011 }
1012
1013
1014 /* alcSetError
1015 *
1016 * Stores the latest ALC Error
1017 */
1018 static void alcSetError(ALCdevice *device, ALCenum errorCode)
1019 {
1020 if(TrapALCError)
1021 {
1022 #ifdef _WIN32
1023 /* DebugBreak() will cause an exception if there is no debugger */
1024 if(IsDebuggerPresent())
1025 DebugBreak();
1026 #elif defined(SIGTRAP)
1027 raise(SIGTRAP);
1028 #endif
1029 }
1030
1031 if(device)
1032 device->LastError = errorCode;
1033 else
1034 g_eLastNullDeviceError = errorCode;
1035 }
1036
1037
1038 /* UpdateDeviceParams
1039 *
1040 * Updates device parameters according to the attribute list (caller is
1041 * responsible for holding the list lock).
1042 */
1043 static ALCenum UpdateDeviceParams(ALCdevice *device, const ALCint *attrList)
1044 {
1045 ALCcontext *context;
1046 enum DevFmtChannels oldChans;
1047 enum DevFmtType oldType;
1048 ALCuint oldFreq;
1049 int oldMode;
1050 ALuint i;
1051
1052 // Check for attributes
1053 if(device->Type == Loopback)
1054 {
1055 enum {
1056 GotFreq = 1<<0,
1057 GotChans = 1<<1,
1058 GotType = 1<<2,
1059 GotAll = GotFreq|GotChans|GotType
1060 };
1061 ALCuint freq, numMono, numStereo, numSends;
1062 enum DevFmtChannels schans;
1063 enum DevFmtType stype;
1064 ALCuint attrIdx = 0;
1065 ALCint gotFmt = 0;
1066
1067 if(!attrList)
1068 {
1069 WARN("Missing attributes for loopback device\n");
1070 return ALC_INVALID_VALUE;
1071 }
1072
1073 numMono = device->NumMonoSources;
1074 numStereo = device->NumStereoSources;
1075 numSends = device->NumAuxSends;
1076 schans = device->FmtChans;
1077 stype = device->FmtType;
1078 freq = device->Frequency;
1079
1080 while(attrList[attrIdx])
1081 {
1082 if(attrList[attrIdx] == ALC_FORMAT_CHANNELS_SOFT)
1083 {
1084 ALCint val = attrList[attrIdx + 1];
1085 if(!IsValidALCChannels(val) || !ChannelsFromDevFmt(val))
1086 return ALC_INVALID_VALUE;
1087 schans = val;
1088 gotFmt |= GotChans;
1089 }
1090
1091 if(attrList[attrIdx] == ALC_FORMAT_TYPE_SOFT)
1092 {
1093 ALCint val = attrList[attrIdx + 1];
1094 if(!IsValidALCType(val) || !BytesFromDevFmt(val))
1095 return ALC_INVALID_VALUE;
1096 stype = val;
1097 gotFmt |= GotType;
1098 }
1099
1100 if(attrList[attrIdx] == ALC_FREQUENCY)
1101 {
1102 freq = attrList[attrIdx + 1];
1103 if(freq < MIN_OUTPUT_RATE)
1104 return ALC_INVALID_VALUE;
1105 gotFmt |= GotFreq;
1106 }
1107
1108 if(attrList[attrIdx] == ALC_STEREO_SOURCES)
1109 {
1110 numStereo = attrList[attrIdx + 1];
1111 if(numStereo > device->MaxNoOfSources)
1112 numStereo = device->MaxNoOfSources;
1113
1114 numMono = device->MaxNoOfSources - numStereo;
1115 }
1116
1117 if(attrList[attrIdx] == ALC_MAX_AUXILIARY_SENDS)
1118 numSends = attrList[attrIdx + 1];
1119
1120 attrIdx += 2;
1121 }
1122
1123 if(gotFmt != GotAll)
1124 {
1125 WARN("Missing format for loopback device\n");
1126 return ALC_INVALID_VALUE;
1127 }
1128
1129 ConfigValueUInt(NULL, "sends", &numSends);
1130 numSends = minu(MAX_SENDS, numSends);
1131
1132 if((device->Flags&DEVICE_RUNNING))
1133 ALCdevice_StopPlayback(device);
1134 device->Flags &= ~DEVICE_RUNNING;
1135
1136 device->Frequency = freq;
1137 device->FmtChans = schans;
1138 device->FmtType = stype;
1139 device->NumMonoSources = numMono;
1140 device->NumStereoSources = numStereo;
1141 device->NumAuxSends = numSends;
1142 }
1143 else if(attrList && attrList[0])
1144 {
1145 ALCuint freq, numMono, numStereo, numSends;
1146 ALCuint attrIdx = 0;
1147
1148 /* If a context is already running on the device, stop playback so the
1149 * device attributes can be updated. */
1150 if((device->Flags&DEVICE_RUNNING))
1151 ALCdevice_StopPlayback(device);
1152 device->Flags &= ~DEVICE_RUNNING;
1153
1154 freq = device->Frequency;
1155 numMono = device->NumMonoSources;
1156 numStereo = device->NumStereoSources;
1157 numSends = device->NumAuxSends;
1158
1159 while(attrList[attrIdx])
1160 {
1161 if(attrList[attrIdx] == ALC_FREQUENCY)
1162 {
1163 freq = attrList[attrIdx + 1];
1164 device->Flags |= DEVICE_FREQUENCY_REQUEST;
1165 }
1166
1167 if(attrList[attrIdx] == ALC_STEREO_SOURCES)
1168 {
1169 numStereo = attrList[attrIdx + 1];
1170 if(numStereo > device->MaxNoOfSources)
1171 numStereo = device->MaxNoOfSources;
1172
1173 numMono = device->MaxNoOfSources - numStereo;
1174 }
1175
1176 if(attrList[attrIdx] == ALC_MAX_AUXILIARY_SENDS)
1177 numSends = attrList[attrIdx + 1];
1178
1179 attrIdx += 2;
1180 }
1181
1182 ConfigValueUInt(NULL, "frequency", &freq);
1183 freq = maxu(freq, MIN_OUTPUT_RATE);
1184
1185 ConfigValueUInt(NULL, "sends", &numSends);
1186 numSends = minu(MAX_SENDS, numSends);
1187
1188 device->UpdateSize = (ALuint64)device->UpdateSize * freq /
1189 device->Frequency;
1190
1191 device->Frequency = freq;
1192 device->NumMonoSources = numMono;
1193 device->NumStereoSources = numStereo;
1194 device->NumAuxSends = numSends;
1195 }
1196
1197 if((device->Flags&DEVICE_RUNNING))
1198 return ALC_NO_ERROR;
1199
1200 oldFreq = device->Frequency;
1201 oldChans = device->FmtChans;
1202 oldType = device->FmtType;
1203
1204 TRACE("Format pre-setup: %s%s, %s%s, %uhz%s, %u update size x%d\n",
1205 DevFmtChannelsString(device->FmtChans),
1206 (device->Flags&DEVICE_CHANNELS_REQUEST)?" (requested)":"",
1207 DevFmtTypeString(device->FmtType),
1208 (device->Flags&DEVICE_SAMPLE_TYPE_REQUEST)?" (requested)":"",
1209 device->Frequency,
1210 (device->Flags&DEVICE_FREQUENCY_REQUEST)?" (requested)":"",
1211 device->UpdateSize, device->NumUpdates);
1212
1213 if(ALCdevice_ResetPlayback(device) == ALC_FALSE)
1214 return ALC_INVALID_DEVICE;
1215
1216 if(device->FmtChans != oldChans && (device->Flags&DEVICE_CHANNELS_REQUEST))
1217 {
1218 ERR("Failed to set %s, got %s instead\n", DevFmtChannelsString(oldChans),
1219 DevFmtChannelsString(device->FmtChans));
1220 device->Flags &= ~DEVICE_CHANNELS_REQUEST;
1221 }
1222 if(device->FmtType != oldType && (device->Flags&DEVICE_SAMPLE_TYPE_REQUEST))
1223 {
1224 ERR("Failed to set %s, got %s instead\n", DevFmtTypeString(oldType),
1225 DevFmtTypeString(device->FmtType));
1226 device->Flags &= ~DEVICE_SAMPLE_TYPE_REQUEST;
1227 }
1228 if(device->Frequency != oldFreq && (device->Flags&DEVICE_FREQUENCY_REQUEST))
1229 {
1230 ERR("Failed to set %uhz, got %uhz instead\n", oldFreq, device->Frequency);
1231 device->Flags &= ~DEVICE_FREQUENCY_REQUEST;
1232 }
1233
1234 TRACE("Format post-setup: %s, %s, %uhz, %u update size x%d\n",
1235 DevFmtChannelsString(device->FmtChans),
1236 DevFmtTypeString(device->FmtType), device->Frequency,
1237 device->UpdateSize, device->NumUpdates);
1238
1239 aluInitPanning(device);
1240
1241 for(i = 0;i < MAXCHANNELS;i++)
1242 {
1243 device->ClickRemoval[i] = 0.0f;
1244 device->PendingClicks[i] = 0.0f;
1245 }
1246
1247 device->Hrtf = NULL;
1248 if(device->Type != Loopback && GetConfigValueBool(NULL, "hrtf", AL_FALSE))
1249 device->Hrtf = GetHrtf(device);
1250 TRACE("HRTF %s\n", device->Hrtf?"enabled":"disabled");
1251
1252 if(!device->Hrtf && device->Bs2bLevel > 0 && device->Bs2bLevel <= 6)
1253 {
1254 if(!device->Bs2b)
1255 {
1256 device->Bs2b = calloc(1, sizeof(*device->Bs2b));
1257 bs2b_clear(device->Bs2b);
1258 }
1259 bs2b_set_srate(device->Bs2b, device->Frequency);
1260 bs2b_set_level(device->Bs2b, device->Bs2bLevel);
1261 TRACE("BS2B level %d\n", device->Bs2bLevel);
1262 }
1263 else
1264 {
1265 free(device->Bs2b);
1266 device->Bs2b = NULL;
1267 TRACE("BS2B disabled\n");
1268 }
1269
1270 device->Flags &= ~DEVICE_DUPLICATE_STEREO;
1271 switch(device->FmtChans)
1272 {
1273 case DevFmtMono:
1274 case DevFmtStereo:
1275 break;
1276 case DevFmtQuad:
1277 case DevFmtX51:
1278 case DevFmtX51Side:
1279 case DevFmtX61:
1280 case DevFmtX71:
1281 if(GetConfigValueBool(NULL, "stereodup", AL_TRUE))
1282 device->Flags |= DEVICE_DUPLICATE_STEREO;
1283 break;
1284 }
1285 TRACE("Stereo duplication %s\n", (device->Flags&DEVICE_DUPLICATE_STEREO)?"enabled":"disabled");
1286
1287 oldMode = SetMixerFPUMode();
1288 LockDevice(device);
1289 context = device->ContextList;
1290 while(context)
1291 {
1292 ALsizei pos;
1293
1294 context->UpdateSources = AL_FALSE;
1295 LockUIntMapRead(&context->EffectSlotMap);
1296 for(pos = 0;pos < context->EffectSlotMap.size;pos++)
1297 {
1298 ALeffectslot *slot = context->EffectSlotMap.array[pos].value;
1299
1300 if(ALeffectState_DeviceUpdate(slot->EffectState, device) == AL_FALSE)
1301 {
1302 UnlockUIntMapRead(&context->EffectSlotMap);
1303 UnlockDevice(device);
1304 RestoreFPUMode(oldMode);
1305 return ALC_INVALID_DEVICE;
1306 }
1307 slot->NeedsUpdate = AL_FALSE;
1308 ALeffectState_Update(slot->EffectState, device, slot);
1309 }
1310 UnlockUIntMapRead(&context->EffectSlotMap);
1311
1312 LockUIntMapRead(&context->SourceMap);
1313 for(pos = 0;pos < context->SourceMap.size;pos++)
1314 {
1315 ALsource *source = context->SourceMap.array[pos].value;
1316 ALuint s = device->NumAuxSends;
1317 while(s < MAX_SENDS)
1318 {
1319 if(source->Send[s].Slot)
1320 DecrementRef(&source->Send[s].Slot->ref);
1321 source->Send[s].Slot = NULL;
1322 source->Send[s].WetGain = 1.0f;
1323 source->Send[s].WetGainHF = 1.0f;
1324 s++;
1325 }
1326 source->NeedsUpdate = AL_FALSE;
1327 ALsource_Update(source, context);
1328 }
1329 UnlockUIntMapRead(&context->SourceMap);
1330
1331 context = context->next;
1332 }
1333 if(device->DefaultSlot)
1334 {
1335 ALeffectslot *slot = device->DefaultSlot;
1336
1337 if(ALeffectState_DeviceUpdate(slot->EffectState, device) == AL_FALSE)
1338 {
1339 UnlockDevice(device);
1340 RestoreFPUMode(oldMode);
1341 return ALC_INVALID_DEVICE;
1342 }
1343 slot->NeedsUpdate = AL_FALSE;
1344 ALeffectState_Update(slot->EffectState, device, slot);
1345 }
1346 UnlockDevice(device);
1347 RestoreFPUMode(oldMode);
1348
1349 if(ALCdevice_StartPlayback(device) == ALC_FALSE)
1350 return ALC_INVALID_DEVICE;
1351 device->Flags |= DEVICE_RUNNING;
1352
1353 return ALC_NO_ERROR;
1354 }
1355
1356 /* FreeDevice
1357 *
1358 * Frees the device structure, and destroys any objects the app failed to
1359 * delete. Called once there's no more references on the device.
1360 */
1361 static ALCvoid FreeDevice(ALCdevice *device)
1362 {
1363 TRACE("%p\n", device);
1364
1365 if(device->DefaultSlot)
1366 {
1367 ALeffectState_Destroy(device->DefaultSlot->EffectState);
1368 device->DefaultSlot->EffectState = NULL;
1369 }
1370
1371 if(device->BufferMap.size > 0)
1372 {
1373 WARN("(%p) Deleting %d Buffer(s)\n", device, device->BufferMap.size);
1374 ReleaseALBuffers(device);
1375 }
1376 ResetUIntMap(&device->BufferMap);
1377
1378 if(device->EffectMap.size > 0)
1379 {
1380 WARN("(%p) Deleting %d Effect(s)\n", device, device->EffectMap.size);
1381 ReleaseALEffects(device);
1382 }
1383 ResetUIntMap(&device->EffectMap);
1384
1385 if(device->FilterMap.size > 0)
1386 {
1387 WARN("(%p) Deleting %d Filter(s)\n", device, device->FilterMap.size);
1388 ReleaseALFilters(device);
1389 }
1390 ResetUIntMap(&device->FilterMap);
1391
1392 free(device->Bs2b);
1393 device->Bs2b = NULL;
1394
1395 free(device->szDeviceName);
1396 device->szDeviceName = NULL;
1397
1398 DeleteCriticalSection(&device->Mutex);
1399
1400 free(device);
1401 }
1402
1403
1404 void ALCdevice_IncRef(ALCdevice *device)
1405 {
1406 RefCount ref;
1407 ref = IncrementRef(&device->ref);
1408 TRACEREF("%p increasing refcount to %u\n", device, ref);
1409 }
1410
1411 void ALCdevice_DecRef(ALCdevice *device)
1412 {
1413 RefCount ref;
1414 ref = DecrementRef(&device->ref);
1415 TRACEREF("%p decreasing refcount to %u\n", device, ref);
1416 if(ref == 0) FreeDevice(device);
1417 }
1418
1419 /* VerifyDevice
1420 *
1421 * Checks if the device handle is valid, and increments its ref count if so.
1422 */
1423 static ALCdevice *VerifyDevice(ALCdevice *device)
1424 {
1425 ALCdevice *tmpDevice;
1426
1427 if(!device)
1428 return NULL;
1429
1430 LockLists();
1431 tmpDevice = DeviceList;
1432 while(tmpDevice && tmpDevice != device)
1433 tmpDevice = tmpDevice->next;
1434
1435 if(tmpDevice)
1436 ALCdevice_IncRef(tmpDevice);
1437 UnlockLists();
1438 return tmpDevice;
1439 }
1440
1441
1442 /* InitContext
1443 *
1444 * Initializes context variables
1445 */
1446 static ALvoid InitContext(ALCcontext *pContext)
1447 {
1448 ALint i, j;
1449
1450 //Initialise listener
1451 pContext->Listener.Gain = 1.0f;
1452 pContext->Listener.MetersPerUnit = 1.0f;
1453 pContext->Listener.Position[0] = 0.0f;
1454 pContext->Listener.Position[1] = 0.0f;
1455 pContext->Listener.Position[2] = 0.0f;
1456 pContext->Listener.Velocity[0] = 0.0f;
1457 pContext->Listener.Velocity[1] = 0.0f;
1458 pContext->Listener.Velocity[2] = 0.0f;
1459 pContext->Listener.Forward[0] = 0.0f;
1460 pContext->Listener.Forward[1] = 0.0f;
1461 pContext->Listener.Forward[2] = -1.0f;
1462 pContext->Listener.Up[0] = 0.0f;
1463 pContext->Listener.Up[1] = 1.0f;
1464 pContext->Listener.Up[2] = 0.0f;
1465 for(i = 0;i < 4;i++)
1466 {
1467 for(j = 0;j < 4;j++)
1468 pContext->Listener.Matrix[i][j] = ((i==j) ? 1.0f : 0.0f);
1469 }
1470
1471 //Validate pContext
1472 pContext->LastError = AL_NO_ERROR;
1473 pContext->UpdateSources = AL_FALSE;
1474 pContext->ActiveSourceCount = 0;
1475 InitUIntMap(&pContext->SourceMap, pContext->Device->MaxNoOfSources);
1476 InitUIntMap(&pContext->EffectSlotMap, pContext->Device->AuxiliaryEffectSlotMax);
1477
1478 //Set globals
1479 pContext->DistanceModel = AL_INVERSE_DISTANCE_CLAMPED;
1480 pContext->SourceDistanceModel = AL_FALSE;
1481 pContext->DopplerFactor = 1.0f;
1482 pContext->DopplerVelocity = 1.0f;
1483 pContext->flSpeedOfSound = SPEEDOFSOUNDMETRESPERSEC;
1484 pContext->DeferUpdates = AL_FALSE;
1485
1486 pContext->ExtensionList = alExtList;
1487 }
1488
1489
1490 /* FreeContext
1491 *
1492 * Cleans up the context, and destroys any remaining objects the app failed to
1493 * delete. Called once there's no more references on the context.
1494 */
1495 static ALCvoid FreeContext(ALCcontext *context)
1496 {
1497 TRACE("%p\n", context);
1498
1499 if(context->SourceMap.size > 0)
1500 {
1501 ERR("(%p) Deleting %d Source(s)\n", context, context->SourceMap.size);
1502 ReleaseALSources(context);
1503 }
1504 ResetUIntMap(&context->SourceMap);
1505
1506 if(context->EffectSlotMap.size > 0)
1507 {
1508 ERR("(%p) Deleting %d AuxiliaryEffectSlot(s)\n", context, context->EffectSlotMap.size);
1509 ReleaseALAuxiliaryEffectSlots(context);
1510 }
1511 ResetUIntMap(&context->EffectSlotMap);
1512
1513 context->ActiveSourceCount = 0;
1514 free(context->ActiveSources);
1515 context->ActiveSources = NULL;
1516 context->MaxActiveSources = 0;
1517
1518 context->ActiveEffectSlotCount = 0;
1519 free(context->ActiveEffectSlots);
1520 context->ActiveEffectSlots = NULL;
1521 context->MaxActiveEffectSlots = 0;
1522
1523 ALCdevice_DecRef(context->Device);
1524 context->Device = NULL;
1525
1526 //Invalidate context
1527 memset(context, 0, sizeof(ALCcontext));
1528 free(context);
1529 }
1530
1531 /* ReleaseContext
1532 *
1533 * Removes the context reference from the given device and removes it from
1534 * being current on the running thread or globally.
1535 */
1536 static void ReleaseContext(ALCcontext *context, ALCdevice *device)
1537 {
1538 ALCcontext *volatile*tmp_ctx;
1539
1540 if(pthread_getspecific(LocalContext) == context)
1541 {
1542 WARN("%p released while current on thread\n", context);
1543 pthread_setspecific(LocalContext, NULL);
1544 ALCcontext_DecRef(context);
1545 }
1546
1547 if(CompExchangePtr((XchgPtr*)&GlobalContext, context, NULL))
1548 ALCcontext_DecRef(context);
1549
1550 LockDevice(device);
1551 tmp_ctx = &device->ContextList;
1552 while(*tmp_ctx)
1553 {
1554 if(CompExchangePtr((XchgPtr*)tmp_ctx, context, context->next))
1555 break;
1556 tmp_ctx = &(*tmp_ctx)->next;
1557 }
1558 UnlockDevice(device);
1559
1560 ALCcontext_DecRef(context);
1561 }
1562
1563 void ALCcontext_IncRef(ALCcontext *context)
1564 {
1565 RefCount ref;
1566 ref = IncrementRef(&context->ref);
1567 TRACEREF("%p increasing refcount to %u\n", context, ref);
1568 }
1569
1570 void ALCcontext_DecRef(ALCcontext *context)
1571 {
1572 RefCount ref;
1573 ref = DecrementRef(&context->ref);
1574 TRACEREF("%p decreasing refcount to %u\n", context, ref);
1575 if(ref == 0) FreeContext(context);
1576 }
1577
1578 static void ReleaseThreadCtx(void *ptr)
1579 {
1580 WARN("%p current for thread being destroyed\n", ptr);
1581 ALCcontext_DecRef(ptr);
1582 }
1583
1584 /* VerifyContext
1585 *
1586 * Checks that the given context is valid, and increments its reference count.
1587 */
1588 static ALCcontext *VerifyContext(ALCcontext *context)
1589 {
1590 ALCdevice *dev;
1591
1592 LockLists();
1593 dev = DeviceList;
1594 while(dev)
1595 {
1596 ALCcontext *tmp_ctx = dev->ContextList;
1597 while(tmp_ctx)
1598 {
1599 if(tmp_ctx == context)
1600 {
1601 ALCcontext_IncRef(tmp_ctx);
1602 UnlockLists();
1603 return tmp_ctx;
1604 }
1605 tmp_ctx = tmp_ctx->next;
1606 }
1607 dev = dev->next;
1608 }
1609 UnlockLists();
1610
1611 return NULL;
1612 }
1613
1614
1615 /* GetContextRef
1616 *
1617 * Returns the currently active context, and adds a reference without locking
1618 * it.
1619 */
1620 ALCcontext *GetContextRef(void)
1621 {
1622 ALCcontext *context;
1623
1624 context = pthread_getspecific(LocalContext);
1625 if(context)
1626 ALCcontext_IncRef(context);
1627 else
1628 {
1629 LockLists();
1630 context = GlobalContext;
1631 if(context)
1632 ALCcontext_IncRef(context);
1633 UnlockLists();
1634 }
1635
1636 return context;
1637 }
1638
1639 ///////////////////////////////////////////////////////
1640
1641
1642 ///////////////////////////////////////////////////////
1643 // ALC Functions calls
1644
1645
1646 // This should probably move to another c file but for now ...
1647 ALC_API ALCdevice* ALC_APIENTRY alcCaptureOpenDevice(const ALCchar *deviceName, ALCuint frequency, ALCenum format, ALCsizei SampleSize)
1648 {
1649 ALCdevice *device = NULL;
1650 ALCenum err;
1651
1652 DO_INITCONFIG();
1653
1654 if(!CaptureBackend.name)
1655 {
1656 alcSetError(NULL, ALC_INVALID_VALUE);
1657 return NULL;
1658 }
1659
1660 if(SampleSize <= 0)
1661 {
1662 alcSetError(NULL, ALC_INVALID_VALUE);
1663 return NULL;
1664 }
1665
1666 if(deviceName && (!deviceName[0] || strcasecmp(deviceName, alcDefaultName) == 0 || strcasecmp(deviceName, "openal-soft") == 0))
1667 deviceName = NULL;
1668
1669 device = calloc(1, sizeof(ALCdevice));
1670 if(!device)
1671 {
1672 alcSetError(NULL, ALC_OUT_OF_MEMORY);
1673 return NULL;
1674 }
1675
1676 //Validate device
1677 device->Funcs = &CaptureBackend.Funcs;
1678 device->ref = 1;
1679 device->Connected = ALC_TRUE;
1680 device->Type = Capture;
1681 InitializeCriticalSection(&device->Mutex);
1682
1683 InitUIntMap(&device->BufferMap, ~0);
1684 InitUIntMap(&device->EffectMap, ~0);
1685 InitUIntMap(&device->FilterMap, ~0);
1686
1687 device->szDeviceName = NULL;
1688
1689 device->Flags |= DEVICE_FREQUENCY_REQUEST;
1690 device->Frequency = frequency;
1691
1692 device->Flags |= DEVICE_CHANNELS_REQUEST | DEVICE_SAMPLE_TYPE_REQUEST;
1693 if(DecomposeDevFormat(format, &device->FmtChans, &device->FmtType) == AL_FALSE)
1694 {
1695 DeleteCriticalSection(&device->Mutex);
1696 free(device);
1697 alcSetError(NULL, ALC_INVALID_ENUM);
1698 return NULL;
1699 }
1700
1701 device->UpdateSize = SampleSize;
1702 device->NumUpdates = 1;
1703
1704 LockLists();
1705 if((err=ALCdevice_OpenCapture(device, deviceName)) != ALC_NO_ERROR)
1706 {
1707 UnlockLists();
1708 DeleteCriticalSection(&device->Mutex);
1709 free(device);
1710 alcSetError(NULL, err);
1711 return NULL;
1712 }
1713 UnlockLists();
1714
1715 do {
1716 device->next = DeviceList;
1717 } while(!CompExchangePtr((XchgPtr*)&DeviceList, device->next, device));
1718
1719 TRACE("Created device %p\n", device);
1720 return device;
1721 }
1722
1723 ALC_API ALCboolean ALC_APIENTRY alcCaptureCloseDevice(ALCdevice *pDevice)
1724 {
1725 ALCdevice *volatile*list;
1726
1727 LockLists();
1728 list = &DeviceList;
1729 while(*list && *list != pDevice)
1730 list = &(*list)->next;
1731
1732 if(!*list || (*list)->Type != Capture)
1733 {
1734 alcSetError(*list, ALC_INVALID_DEVICE);
1735 UnlockLists();
1736 return ALC_FALSE;
1737 }
1738
1739 *list = (*list)->next;
1740 UnlockLists();
1741
1742 ALCdevice_CloseCapture(pDevice);
1743
1744 ALCdevice_DecRef(pDevice);
1745
1746 return ALC_TRUE;
1747 }
1748
1749 ALC_API void ALC_APIENTRY alcCaptureStart(ALCdevice *device)
1750 {
1751 LockLists();
1752 if(!(device=VerifyDevice(device)) || device->Type != Capture)
1753 {
1754 UnlockLists();
1755 alcSetError(device, ALC_INVALID_DEVICE);
1756 if(device) ALCdevice_DecRef(device);
1757 return;
1758 }
1759 if(device->Connected)
1760 {
1761 if(!(device->Flags&DEVICE_RUNNING))
1762 ALCdevice_StartCapture(device);
1763 device->Flags |= DEVICE_RUNNING;
1764 }
1765 UnlockLists();
1766
1767 ALCdevice_DecRef(device);
1768 }
1769
1770 ALC_API void ALC_APIENTRY alcCaptureStop(ALCdevice *device)
1771 {
1772 LockLists();
1773 if(!(device=VerifyDevice(device)) || device->Type != Capture)
1774 {
1775 UnlockLists();
1776 alcSetError(device, ALC_INVALID_DEVICE);
1777 if(device) ALCdevice_DecRef(device);
1778 return;
1779 }
1780 if((device->Flags&DEVICE_RUNNING))
1781 ALCdevice_StopCapture(device);
1782 device->Flags &= ~DEVICE_RUNNING;
1783 UnlockLists();
1784
1785 ALCdevice_DecRef(device);
1786 }
1787
1788 ALC_API void ALC_APIENTRY alcCaptureSamples(ALCdevice *device, ALCvoid *buffer, ALCsizei samples)
1789 {
1790 ALCenum err = ALC_INVALID_DEVICE;
1791 LockLists();
1792 if((device=VerifyDevice(device)) != NULL && device->Type == Capture)
1793 {
1794 err = ALC_INVALID_VALUE;
1795 if(samples >= 0 && ALCdevice_AvailableSamples(device) >= (ALCuint)samples)
1796 err = ALCdevice_CaptureSamples(device, buffer, samples);
1797 }
1798 UnlockLists();
1799 if(err != ALC_NO_ERROR)
1800 alcSetError(device, err);
1801 if(device) ALCdevice_DecRef(device);
1802 }
1803
1804 /*
1805 alcGetError
1806
1807 Return last ALC generated error code
1808 */
1809 ALC_API ALCenum ALC_APIENTRY alcGetError(ALCdevice *device)
1810 {
1811 ALCenum errorCode;
1812
1813 if(VerifyDevice(device))
1814 {
1815 errorCode = ExchangeInt(&device->LastError, ALC_NO_ERROR);
1816 ALCdevice_DecRef(device);
1817 }
1818 else
1819 errorCode = ExchangeInt(&g_eLastNullDeviceError, ALC_NO_ERROR);
1820
1821 return errorCode;
1822 }
1823
1824
1825 /* alcSuspendContext
1826 *
1827 * Not functional
1828 */
1829 ALC_API ALCvoid ALC_APIENTRY alcSuspendContext(ALCcontext *Context)
1830 {
1831 (void)Context;
1832 }
1833
1834 /* alcProcessContext
1835 *
1836 * Not functional
1837 */
1838 ALC_API ALCvoid ALC_APIENTRY alcProcessContext(ALCcontext *Context)
1839 {
1840 (void)Context;
1841 }
1842
1843
1844 /* alcGetString
1845 *
1846 * Returns information about the Device, and error strings
1847 */
1848 ALC_API const ALCchar* ALC_APIENTRY alcGetString(ALCdevice *pDevice,ALCenum param)
1849 {
1850 const ALCchar *value = NULL;
1851
1852 switch(param)
1853 {
1854 case ALC_NO_ERROR:
1855 value = alcNoError;
1856 break;
1857
1858 case ALC_INVALID_ENUM:
1859 value = alcErrInvalidEnum;
1860 break;
1861
1862 case ALC_INVALID_VALUE:
1863 value = alcErrInvalidValue;
1864 break;
1865
1866 case ALC_INVALID_DEVICE:
1867 value = alcErrInvalidDevice;
1868 break;
1869
1870 case ALC_INVALID_CONTEXT:
1871 value = alcErrInvalidContext;
1872 break;
1873
1874 case ALC_OUT_OF_MEMORY:
1875 value = alcErrOutOfMemory;
1876 break;
1877
1878 case ALC_DEVICE_SPECIFIER:
1879 value = alcDefaultName;
1880 break;
1881
1882 case ALC_ALL_DEVICES_SPECIFIER:
1883 if(VerifyDevice(pDevice))
1884 {
1885 value = pDevice->szDeviceName;
1886 ALCdevice_DecRef(pDevice);
1887 }
1888 else
1889 {
1890 ProbeAllDeviceList();
1891 value = alcAllDeviceList;
1892 }
1893 break;
1894
1895 case ALC_CAPTURE_DEVICE_SPECIFIER:
1896 if(VerifyDevice(pDevice))
1897 {
1898 value = pDevice->szDeviceName;
1899 ALCdevice_DecRef(pDevice);
1900 }
1901 else
1902 {
1903 ProbeCaptureDeviceList();
1904 value = alcCaptureDeviceList;
1905 }
1906 break;
1907
1908 /* Default devices are always first in the list */
1909 case ALC_DEFAULT_DEVICE_SPECIFIER:
1910 value = alcDefaultName;
1911 break;
1912
1913 case ALC_DEFAULT_ALL_DEVICES_SPECIFIER:
1914 if(!alcAllDeviceList)
1915 ProbeAllDeviceList();
1916
1917 pDevice = VerifyDevice(pDevice);
1918
1919 free(alcDefaultAllDeviceSpecifier);
1920 alcDefaultAllDeviceSpecifier = strdup(alcAllDeviceList ?
1921 alcAllDeviceList : "");
1922 if(!alcDefaultAllDeviceSpecifier)
1923 alcSetError(pDevice, ALC_OUT_OF_MEMORY);
1924
1925 value = alcDefaultAllDeviceSpecifier;
1926 if(pDevice) ALCdevice_DecRef(pDevice);
1927 break;
1928
1929 case ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER:
1930 if(!alcCaptureDeviceList)
1931 ProbeCaptureDeviceList();
1932
1933 pDevice = VerifyDevice(pDevice);
1934
1935 free(alcCaptureDefaultDeviceSpecifier);
1936 alcCaptureDefaultDeviceSpecifier = strdup(alcCaptureDeviceList ?
1937 alcCaptureDeviceList : "");
1938 if(!alcCaptureDefaultDeviceSpecifier)
1939 alcSetError(pDevice, ALC_OUT_OF_MEMORY);
1940
1941 value = alcCaptureDefaultDeviceSpecifier;
1942 if(pDevice) ALCdevice_DecRef(pDevice);
1943 break;
1944
1945 case ALC_EXTENSIONS:
1946 if(!VerifyDevice(pDevice))
1947 value = alcNoDeviceExtList;
1948 else
1949 {
1950 value = alcExtensionList;
1951 ALCdevice_DecRef(pDevice);
1952 }
1953 break;
1954
1955 default:
1956 pDevice = VerifyDevice(pDevice);
1957 alcSetError(pDevice, ALC_INVALID_ENUM);
1958 if(pDevice) ALCdevice_DecRef(pDevice);
1959 break;
1960 }
1961
1962 return value;
1963 }
1964
1965
1966 /* alcGetIntegerv
1967 *
1968 * Returns information about the Device and the version of Open AL
1969 */
1970 ALC_API ALCvoid ALC_APIENTRY alcGetIntegerv(ALCdevice *device,ALCenum param,ALsizei size,ALCint *data)
1971 {
1972 device = VerifyDevice(device);
1973
1974 if(size == 0 || data == NULL)
1975 {
1976 alcSetError(device, ALC_INVALID_VALUE);
1977 if(device) ALCdevice_DecRef(device);
1978 return;
1979 }
1980
1981 if(!device)
1982 {
1983 switch(param)
1984 {
1985 case ALC_MAJOR_VERSION:
1986 *data = alcMajorVersion;
1987 break;
1988 case ALC_MINOR_VERSION:
1989 *data = alcMinorVersion;
1990 break;
1991
1992 case ALC_ATTRIBUTES_SIZE:
1993 case ALC_ALL_ATTRIBUTES:
1994 case ALC_FREQUENCY:
1995 case ALC_REFRESH:
1996 case ALC_SYNC:
1997 case ALC_MONO_SOURCES:
1998 case ALC_STEREO_SOURCES:
1999 case ALC_CAPTURE_SAMPLES:
2000 case ALC_FORMAT_CHANNELS_SOFT:
2001 case ALC_FORMAT_TYPE_SOFT:
2002 alcSetError(NULL, ALC_INVALID_DEVICE);
2003 break;
2004
2005 default:
2006 alcSetError(NULL, ALC_INVALID_ENUM);
2007 break;
2008 }
2009 }
2010 else if(device->Type == Capture)
2011 {
2012 switch(param)
2013 {
2014 case ALC_CAPTURE_SAMPLES:
2015 LockLists();
2016 /* Re-validate the device since it may have been closed */
2017 ALCdevice_DecRef(device);
2018 if((device=VerifyDevice(device)) != NULL)
2019 *data = ALCdevice_AvailableSamples(device);
2020 else
2021 alcSetError(NULL, ALC_INVALID_DEVICE);
2022 UnlockLists();
2023 break;
2024
2025 case ALC_CONNECTED:
2026 *data = device->Connected;
2027 break;
2028
2029 default:
2030 alcSetError(device, ALC_INVALID_ENUM);
2031 break;
2032 }
2033 }
2034 else /* render device */
2035 {
2036 switch(param)
2037 {
2038 case ALC_MAJOR_VERSION:
2039 *data = alcMajorVersion;
2040 break;
2041
2042 case ALC_MINOR_VERSION:
2043 *data = alcMinorVersion;
2044 break;
2045
2046 case ALC_EFX_MAJOR_VERSION:
2047 *data = alcEFXMajorVersion;
2048 break;
2049
2050 case ALC_EFX_MINOR_VERSION:
2051 *data = alcEFXMinorVersion;
2052 break;
2053
2054 case ALC_ATTRIBUTES_SIZE:
2055 *data = 13;
2056 break;
2057
2058 case ALC_ALL_ATTRIBUTES:
2059 if(size < 13)
2060 alcSetError(device, ALC_INVALID_VALUE);
2061 else
2062 {
2063 int i = 0;
2064
2065 data[i++] = ALC_FREQUENCY;
2066 data[i++] = device->Frequency;
2067
2068 if(device->Type != Loopback)
2069 {
2070 data[i++] = ALC_REFRESH;
2071 data[i++] = device->Frequency / device->UpdateSize;
2072
2073 data[i++] = ALC_SYNC;
2074 data[i++] = ALC_FALSE;
2075 }
2076 else
2077 {
2078 data[i++] = ALC_FORMAT_CHANNELS_SOFT;
2079 data[i++] = device->FmtChans;
2080
2081 data[i++] = ALC_FORMAT_TYPE_SOFT;
2082 data[i++] = device->FmtType;
2083 }
2084
2085 data[i++] = ALC_MONO_SOURCES;
2086 data[i++] = device->NumMonoSources;
2087
2088 data[i++] = ALC_STEREO_SOURCES;
2089 data[i++] = device->NumStereoSources;
2090
2091 data[i++] = ALC_MAX_AUXILIARY_SENDS;
2092 data[i++] = device->NumAuxSends;
2093
2094 data[i++] = 0;
2095 }
2096 break;
2097
2098 case ALC_FREQUENCY:
2099 *data = device->Frequency;
2100 break;
2101
2102 case ALC_REFRESH:
2103 if(device->Type == Loopback)
2104 alcSetError(device, ALC_INVALID_DEVICE);
2105 else
2106 *data = device->Frequency / device->UpdateSize;
2107 break;
2108
2109 case ALC_SYNC:
2110 if(device->Type == Loopback)
2111 alcSetError(device, ALC_INVALID_DEVICE);
2112 else
2113 *data = ALC_FALSE;
2114 break;
2115
2116 case ALC_FORMAT_CHANNELS_SOFT:
2117 if(device->Type != Loopback)
2118 alcSetError(device, ALC_INVALID_DEVICE);
2119 else
2120 *data = device->FmtChans;
2121 break;
2122
2123 case ALC_FORMAT_TYPE_SOFT:
2124 if(device->Type != Loopback)
2125 alcSetError(device, ALC_INVALID_DEVICE);
2126 else
2127 *data = device->FmtType;
2128 break;
2129
2130 case ALC_MONO_SOURCES:
2131 *data = device->NumMonoSources;
2132 break;
2133
2134 case ALC_STEREO_SOURCES:
2135 *data = device->NumStereoSources;
2136 break;
2137
2138 case ALC_MAX_AUXILIARY_SENDS:
2139 *data = device->NumAuxSends;
2140 break;
2141
2142 case ALC_CONNECTED:
2143 *data = device->Connected;
2144 break;
2145
2146 default:
2147 alcSetError(device, ALC_INVALID_ENUM);
2148 break;
2149 }
2150 }
2151 if(device)
2152 ALCdevice_DecRef(device);
2153 }
2154
2155
2156 /* alcIsExtensionPresent
2157 *
2158 * Determines if there is support for a particular extension
2159 */
2160 ALC_API ALCboolean ALC_APIENTRY alcIsExtensionPresent(ALCdevice *device, const ALCchar *extName)
2161 {
2162 ALCboolean bResult = ALC_FALSE;
2163
2164 device = VerifyDevice(device);
2165
2166 if(!extName)
2167 alcSetError(device, ALC_INVALID_VALUE);
2168 else
2169 {
2170 size_t len = strlen(extName);
2171 const char *ptr = (device ? alcExtensionList : alcNoDeviceExtList);
2172 while(ptr && *ptr)
2173 {
2174 if(strncasecmp(ptr, extName, len) == 0 &&
2175 (ptr[len] == '\0' || isspace(ptr[len])))
2176 {
2177 bResult = ALC_TRUE;
2178 break;
2179 }
2180 if((ptr=strchr(ptr, ' ')) != NULL)
2181 {
2182 do {
2183 ++ptr;
2184 } while(isspace(*ptr));
2185 }
2186 }
2187 }
2188 if(device)
2189 ALCdevice_DecRef(device);
2190 return bResult;
2191 }
2192
2193
2194 /* alcGetProcAddress
2195 *
2196 * Retrieves the function address for a particular extension function
2197 */
2198 ALC_API ALCvoid* ALC_APIENTRY alcGetProcAddress(ALCdevice *device, const ALCchar *funcName)
2199 {
2200 ALCvoid *ptr = NULL;
2201
2202 device = VerifyDevice(device);
2203
2204 if(!funcName)
2205 alcSetError(device, ALC_INVALID_VALUE);
2206 else
2207 {
2208 ALsizei i = 0;
2209 while(alcFunctions[i].funcName && strcmp(alcFunctions[i].funcName,funcName) != 0)
2210 i++;
2211 ptr = alcFunctions[i].address;
2212 }
2213 if(device)
2214 ALCdevice_DecRef(device);
2215 return ptr;
2216 }
2217
2218
2219 /* alcGetEnumValue
2220 *
2221 * Get the value for a particular ALC Enumerated Value
2222 */
2223 ALC_API ALCenum ALC_APIENTRY alcGetEnumValue(ALCdevice *device, const ALCchar *enumName)
2224 {
2225 ALCenum val = 0;
2226
2227 device = VerifyDevice(device);
2228
2229 if(!enumName)
2230 alcSetError(device, ALC_INVALID_VALUE);
2231 else
2232 {
2233 ALsizei i = 0;
2234 while(enumeration[i].enumName && strcmp(enumeration[i].enumName,enumName) != 0)
2235 i++;
2236 val = enumeration[i].value;
2237 }
2238 if(device)
2239 ALCdevice_DecRef(device);
2240 return val;
2241 }
2242
2243
2244 /* alcCreateContext
2245 *
2246 * Create and attach a Context to a particular Device.
2247 */
2248 ALC_API ALCcontext* ALC_APIENTRY alcCreateContext(ALCdevice *device, const ALCint *attrList)
2249 {
2250 ALCcontext *ALContext;
2251 ALCenum err;
2252
2253 LockLists();
2254 if(!(device=VerifyDevice(device)) || device->Type == Capture || !device->Connected)
2255 {
2256 UnlockLists();
2257 alcSetError(device, ALC_INVALID_DEVICE);
2258 if(device) ALCdevice_DecRef(device);
2259 return NULL;
2260 }
2261
2262 /* Reset Context Last Error code */
2263 device->LastError = ALC_NO_ERROR;
2264
2265 if((err=UpdateDeviceParams(device, attrList)) != ALC_NO_ERROR)
2266 {
2267 UnlockLists();
2268 alcSetError(device, err);
2269 if(err == ALC_INVALID_DEVICE)
2270 aluHandleDisconnect(device);
2271 ALCdevice_DecRef(device);
2272 return NULL;
2273 }
2274
2275 ALContext = calloc(1, sizeof(ALCcontext));
2276 if(ALContext)
2277 {
2278 ALContext->ref = 1;
2279
2280 ALContext->MaxActiveSources = 256;
2281 ALContext->ActiveSources = malloc(sizeof(ALContext->ActiveSources[0]) *
2282 ALContext->MaxActiveSources);
2283 }
2284 if(!ALContext || !ALContext->ActiveSources)
2285 {
2286 if(!device->ContextList)
2287 {
2288 ALCdevice_StopPlayback(device);
2289 device->Flags &= ~DEVICE_RUNNING;
2290 }
2291 UnlockLists();
2292
2293 free(ALContext);
2294 ALContext = NULL;
2295
2296 alcSetError(device, ALC_OUT_OF_MEMORY);
2297 ALCdevice_DecRef(device);
2298 return NULL;
2299 }
2300
2301 ALContext->Device = device;
2302 ALCdevice_IncRef(device);
2303 InitContext(ALContext);
2304
2305 do {
2306 ALContext->next = device->ContextList;
2307 } while(!CompExchangePtr((XchgPtr*)&device->ContextList, ALContext->next, ALContext));
2308 UnlockLists();
2309
2310 ALCdevice_DecRef(device);
2311
2312 TRACE("Created context %p\n", ALContext);
2313 return ALContext;
2314 }
2315
2316 /* alcDestroyContext
2317 *
2318 * Remove a Context
2319 */
2320 ALC_API ALCvoid ALC_APIENTRY alcDestroyContext(ALCcontext *context)
2321 {
2322 ALCdevice *Device;
2323
2324 LockLists();
2325 /* alcGetContextsDevice sets an error for invalid contexts */
2326 Device = alcGetContextsDevice(context);
2327 if(Device)
2328 {
2329 ReleaseContext(context, Device);
2330 if(!Device->ContextList)
2331 {
2332 ALCdevice_StopPlayback(Device);
2333 Device->Flags &= ~DEVICE_RUNNING;
2334 }
2335 }
2336 UnlockLists();
2337 }
2338
2339
2340 /* alcGetCurrentContext
2341 *
2342 * Returns the currently active Context
2343 */
2344 ALC_API ALCcontext* ALC_APIENTRY alcGetCurrentContext(ALCvoid)
2345 {
2346 ALCcontext *Context;
2347
2348 Context = pthread_getspecific(LocalContext);
2349 if(!Context) Context = GlobalContext;
2350
2351 return Context;
2352 }
2353
2354 /* alcGetThreadContext
2355 *
2356 * Returns the currently active thread-local Context
2357 */
2358 ALC_API ALCcontext* ALC_APIENTRY alcGetThreadContext(void)
2359 {
2360 ALCcontext *Context;
2361 Context = pthread_getspecific(LocalContext);
2362 return Context;
2363 }
2364
2365
2366 /* alcMakeContextCurrent
2367 *
2368 * Makes the given Context the active Context
2369 */
2370 ALC_API ALCboolean ALC_APIENTRY alcMakeContextCurrent(ALCcontext *context)
2371 {
2372 /* context must be a valid Context or NULL */
2373 if(context && !(context=VerifyContext(context)))
2374 {
2375 alcSetError(NULL, ALC_INVALID_CONTEXT);
2376 return ALC_FALSE;
2377 }
2378 /* context's reference count is already incremented */
2379 context = ExchangePtr((XchgPtr*)&GlobalContext, context);
2380 if(context) ALCcontext_DecRef(context);
2381
2382 if((context=pthread_getspecific(LocalContext)) != NULL)
2383 {
2384 pthread_setspecific(LocalContext, NULL);
2385 ALCcontext_DecRef(context);
2386 }
2387
2388 return ALC_TRUE;
2389 }
2390
2391 /* alcSetThreadContext
2392 *
2393 * Makes the given Context the active Context for the current thread
2394 */
2395 ALC_API ALCboolean ALC_APIENTRY alcSetThreadContext(ALCcontext *context)
2396 {
2397 ALCcontext *old;
2398
2399 /* context must be a valid Context or NULL */
2400 if(context && !(context=VerifyContext(context)))
2401 {
2402 alcSetError(NULL, ALC_INVALID_CONTEXT);
2403 return ALC_FALSE;
2404 }
2405 /* context's reference count is already incremented */
2406 old = pthread_getspecific(LocalContext);
2407 pthread_setspecific(LocalContext, context);
2408 if(old) ALCcontext_DecRef(old);
2409
2410 return ALC_TRUE;
2411 }
2412
2413
2414 /* alcGetContextsDevice
2415 *
2416 * Returns the Device that a particular Context is attached to
2417 */
2418 ALC_API ALCdevice* ALC_APIENTRY alcGetContextsDevice(ALCcontext *Context)
2419 {
2420 ALCdevice *Device;
2421
2422 if(!(Context=VerifyContext(Context)))
2423 {
2424 alcSetError(NULL, ALC_INVALID_CONTEXT);
2425 return NULL;
2426 }
2427 Device = Context->Device;
2428 ALCcontext_DecRef(Context);
2429
2430 return Device;
2431 }
2432
2433
2434 /* alcOpenDevice
2435 *
2436 * Open the Device specified.
2437 */
2438 ALC_API ALCdevice* ALC_APIENTRY alcOpenDevice(const ALCchar *deviceName)
2439 {
2440 const ALCchar *fmt;
2441 ALCdevice *device;
2442 ALCenum err;
2443
2444 DO_INITCONFIG();
2445
2446 if(!PlaybackBackend.name)
2447 {
2448 alcSetError(NULL, ALC_INVALID_VALUE);
2449 return NULL;
2450 }
2451
2452 if(deviceName && (!deviceName[0] || strcasecmp(deviceName, alcDefaultName) == 0 || strcasecmp(deviceName, "openal-soft") == 0))
2453 deviceName = NULL;
2454
2455 device = calloc(1, sizeof(ALCdevice)+sizeof(ALeffectslot));
2456 if(!device)
2457 {
2458 alcSetError(NULL, ALC_OUT_OF_MEMORY);
2459 return NULL;
2460 }
2461
2462 //Validate device
2463 device->Funcs = &PlaybackBackend.Funcs;
2464 device->ref = 1;
2465 device->Connected = ALC_TRUE;
2466 device->Type = Playback;
2467 InitializeCriticalSection(&device->Mutex);
2468 device->LastError = ALC_NO_ERROR;
2469
2470 device->Flags = 0;
2471 device->Bs2b = NULL;
2472 device->Bs2bLevel = 0;
2473 device->szDeviceName = NULL;
2474
2475 device->ContextList = NULL;
2476
2477 device->MaxNoOfSources = 256;
2478 device->AuxiliaryEffectSlotMax = 4;
2479 device->NumAuxSends = MAX_SENDS;
2480
2481 InitUIntMap(&device->BufferMap, ~0);
2482 InitUIntMap(&device->EffectMap, ~0);
2483 InitUIntMap(&device->FilterMap, ~0);
2484
2485 //Set output format
2486 device->FmtChans = DevFmtChannelsDefault;
2487 device->FmtType = DevFmtTypeDefault;
2488 device->Frequency = DEFAULT_OUTPUT_RATE;
2489 device->NumUpdates = 4;
2490 device->UpdateSize = 1024;
2491
2492 if(ConfigValueStr(NULL, "channels", &fmt))
2493 {
2494 static const struct {
2495 const char name[16];
2496 enum DevFmtChannels chans;
2497 } chanlist[] = {
2498 { "mono", DevFmtMono },
2499 { "stereo", DevFmtStereo },
2500 { "quad", DevFmtQuad },
2501 { "surround51", DevFmtX51 },
2502 { "surround61", DevFmtX61 },
2503 { "surround71", DevFmtX71 },
2504 };
2505 size_t i;
2506
2507 for(i = 0;i < COUNTOF(chanlist);i++)
2508 {
2509 if(strcasecmp(chanlist[i].name, fmt) == 0)
2510 {
2511 device->FmtChans = chanlist[i].chans;
2512 device->Flags |= DEVICE_CHANNELS_REQUEST;
2513 break;
2514 }
2515 }
2516 if(i == COUNTOF(chanlist))
2517 ERR("Unsupported channels: %s\n", fmt);
2518 }
2519 if(ConfigValueStr(NULL, "sample-type", &fmt))
2520 {
2521 static const struct {
2522 const char name[16];
2523 enum DevFmtType type;
2524 } typelist[] = {
2525 { "int8", DevFmtByte },
2526 { "uint8", DevFmtUByte },
2527 { "int16", DevFmtShort },
2528 { "uint16", DevFmtUShort },
2529 { "int32", DevFmtInt },
2530 { "uint32", DevFmtUInt },
2531 { "float32", DevFmtFloat },
2532 };
2533 size_t i;
2534
2535 for(i = 0;i < COUNTOF(typelist);i++)
2536 {
2537 if(strcasecmp(typelist[i].name, fmt) == 0)
2538 {
2539 device->FmtType = typelist[i].type;
2540 device->Flags |= DEVICE_SAMPLE_TYPE_REQUEST;
2541 break;
2542 }
2543 }
2544 if(i == COUNTOF(typelist))
2545 ERR("Unsupported sample-type: %s\n", fmt);
2546 }
2547 #define DEVICE_FORMAT_REQUEST (DEVICE_CHANNELS_REQUEST|DEVICE_SAMPLE_TYPE_REQUEST)
2548 if((device->Flags&DEVICE_FORMAT_REQUEST) != DEVICE_FORMAT_REQUEST &&
2549 ConfigValueStr(NULL, "format", &fmt))
2550 {
2551 static const struct {
2552 const char name[32];
2553 enum DevFmtChannels channels;
2554 enum DevFmtType type;
2555 } formats[] = {
2556 { "AL_FORMAT_MONO32", DevFmtMono, DevFmtFloat },
2557 { "AL_FORMAT_STEREO32", DevFmtStereo, DevFmtFloat },
2558 { "AL_FORMAT_QUAD32", DevFmtQuad, DevFmtFloat },
2559 { "AL_FORMAT_51CHN32", DevFmtX51, DevFmtFloat },
2560 { "AL_FORMAT_61CHN32", DevFmtX61, DevFmtFloat },
2561 { "AL_FORMAT_71CHN32", DevFmtX71, DevFmtFloat },
2562
2563 { "AL_FORMAT_MONO16", DevFmtMono, DevFmtShort },
2564 { "AL_FORMAT_STEREO16", DevFmtStereo, DevFmtShort },
2565 { "AL_FORMAT_QUAD16", DevFmtQuad, DevFmtShort },
2566 { "AL_FORMAT_51CHN16", DevFmtX51, DevFmtShort },
2567 { "AL_FORMAT_61CHN16", DevFmtX61, DevFmtShort },
2568 { "AL_FORMAT_71CHN16", DevFmtX71, DevFmtShort },
2569
2570 { "AL_FORMAT_MONO8", DevFmtMono, DevFmtByte },
2571 { "AL_FORMAT_STEREO8", DevFmtStereo, DevFmtByte },
2572 { "AL_FORMAT_QUAD8", DevFmtQuad, DevFmtByte },
2573 { "AL_FORMAT_51CHN8", DevFmtX51, DevFmtByte },
2574 { "AL_FORMAT_61CHN8", DevFmtX61, DevFmtByte },
2575 { "AL_FORMAT_71CHN8", DevFmtX71, DevFmtByte }
2576 };
2577 size_t i;
2578
2579 ERR("Option 'format' is deprecated, please use 'channels' and 'sample-type'\n");
2580 for(i = 0;i < COUNTOF(formats);i++)
2581 {
2582 if(strcasecmp(fmt, formats[i].name) == 0)
2583 {
2584 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
2585 device->FmtChans = formats[i].channels;
2586 if(!(device->Flags&DEVICE_SAMPLE_TYPE_REQUEST))
2587 device->FmtType = formats[i].type;
2588 device->Flags |= DEVICE_FORMAT_REQUEST;
2589 break;
2590 }
2591 }
2592 if(i == COUNTOF(formats))
2593 ERR("Unsupported format: %s\n", fmt);
2594 }
2595 #undef DEVICE_FORMAT_REQUEST
2596
2597 if(ConfigValueUInt(NULL, "frequency", &device->Frequency))
2598 {
2599 device->Flags |= DEVICE_FREQUENCY_REQUEST;
2600 if(device->Frequency < MIN_OUTPUT_RATE)
2601 ERR("%uhz request clamped to %uhz minimum\n", device->Frequency, MIN_OUTPUT_RATE);
2602 device->Frequency = maxu(device->Frequency, MIN_OUTPUT_RATE);
2603 }
2604
2605 ConfigValueUInt(NULL, "periods", &device->NumUpdates);
2606 device->NumUpdates = clampu(device->NumUpdates, 2, 16);
2607
2608 ConfigValueUInt(NULL, "period_size", &device->UpdateSize);
2609 device->UpdateSize = clampu(device->UpdateSize, 64, 8192);
2610
2611 ConfigValueUInt(NULL, "sources", &device->MaxNoOfSources);
2612 if(device->MaxNoOfSources == 0) device->MaxNoOfSources = 256;
2613
2614 ConfigValueUInt(NULL, "slots", &device->AuxiliaryEffectSlotMax);
2615 if(device->AuxiliaryEffectSlotMax == 0) device->AuxiliaryEffectSlotMax = 4;
2616
2617 ConfigValueUInt(NULL, "sends", &device->NumAuxSends);
2618 if(device->NumAuxSends > MAX_SENDS) device->NumAuxSends = MAX_SENDS;
2619
2620 ConfigValueInt(NULL, "cf_level", &device->Bs2bLevel);
2621
2622 device->NumStereoSources = 1;
2623 device->NumMonoSources = device->MaxNoOfSources - device->NumStereoSources;
2624
2625 // Find a playback device to open
2626 LockLists();
2627 if((err=ALCdevice_OpenPlayback(device, deviceName)) != ALC_NO_ERROR)
2628 {
2629 UnlockLists();
2630 DeleteCriticalSection(&device->Mutex);
2631 free(device);
2632 alcSetError(NULL, err);
2633 return NULL;
2634 }
2635 UnlockLists();
2636
2637 if(DefaultEffect.type != AL_EFFECT_NULL)
2638 {
2639 device->DefaultSlot = (ALeffectslot*)(device+1);
2640 if(InitEffectSlot(device->DefaultSlot) != AL_NO_ERROR)
2641 {
2642 device->DefaultSlot = NULL;
2643 ERR("Failed to initialize the default effect slot\n");
2644 }
2645 else if(InitializeEffect(device, device->DefaultSlot, &DefaultEffect) != AL_NO_ERROR)
2646 {
2647 ALeffectState_Destroy(device->DefaultSlot->EffectState);
2648 device->DefaultSlot = NULL;
2649 ERR("Failed to initialize the default effect\n");
2650 }
2651 }
2652
2653 do {
2654 device->next = DeviceList;
2655 } while(!CompExchangePtr((XchgPtr*)&DeviceList, device->next, device));
2656
2657 TRACE("Created device %p, \"%s\"\n", device, device->szDeviceName);
2658 return device;
2659 }
2660
2661 /* alcCloseDevice
2662 *
2663 * Close the specified Device
2664 */
2665 ALC_API ALCboolean ALC_APIENTRY alcCloseDevice(ALCdevice *pDevice)
2666 {
2667 ALCdevice *volatile*list;
2668 ALCcontext *ctx;
2669
2670 LockLists();
2671 list = &DeviceList;
2672 while(*list && *list != pDevice)
2673 list = &(*list)->next;
2674
2675 if(!*list || (*list)->Type == Capture)
2676 {
2677 alcSetError(*list, ALC_INVALID_DEVICE);
2678 UnlockLists();
2679 return ALC_FALSE;
2680 }
2681
2682 *list = (*list)->next;
2683 UnlockLists();
2684
2685 while((ctx=pDevice->ContextList) != NULL)
2686 {
2687 WARN("Releasing context %p\n", ctx);
2688 ReleaseContext(ctx, pDevice);
2689 }
2690 if((pDevice->Flags&DEVICE_RUNNING))
2691 ALCdevice_StopPlayback(pDevice);
2692 pDevice->Flags &= ~DEVICE_RUNNING;
2693
2694 ALCdevice_ClosePlayback(pDevice);
2695
2696 ALCdevice_DecRef(pDevice);
2697
2698 return ALC_TRUE;
2699 }
2700
2701
2702 /* alcLoopbackOpenDeviceSOFT
2703 *
2704 * Open a loopback device, for manual rendering.
2705 */
2706 ALC_API ALCdevice* ALC_APIENTRY alcLoopbackOpenDeviceSOFT(const ALCchar *deviceName)
2707 {
2708 ALCdevice *device;
2709
2710 DO_INITCONFIG();
2711
2712 /* Make sure the device name, if specified, is us. */
2713 if(deviceName && strcmp(deviceName, alcDefaultName) != 0)
2714 {
2715 alcSetError(NULL, ALC_INVALID_VALUE);
2716 return NULL;
2717 }
2718
2719 device = calloc(1, sizeof(ALCdevice));
2720 if(!device)
2721 {
2722 alcSetError(NULL, ALC_OUT_OF_MEMORY);
2723 return NULL;
2724 }
2725
2726 //Validate device
2727 device->Funcs = &BackendLoopback.Funcs;
2728 device->ref = 1;
2729 device->Connected = ALC_TRUE;
2730 device->Type = Loopback;
2731 InitializeCriticalSection(&device->Mutex);
2732 device->LastError = ALC_NO_ERROR;
2733
2734 device->Flags = 0;
2735 device->Bs2b = NULL;
2736 device->Bs2bLevel = 0;
2737 device->szDeviceName = NULL;
2738
2739 device->ContextList = NULL;
2740
2741 device->MaxNoOfSources = 256;
2742 device->AuxiliaryEffectSlotMax = 4;
2743 device->NumAuxSends = MAX_SENDS;
2744
2745 InitUIntMap(&device->BufferMap, ~0);
2746 InitUIntMap(&device->EffectMap, ~0);
2747 InitUIntMap(&device->FilterMap, ~0);
2748
2749 //Set output format
2750 device->NumUpdates = 0;
2751 device->UpdateSize = 0;
2752
2753 device->Frequency = DEFAULT_OUTPUT_RATE;
2754 device->FmtChans = DevFmtChannelsDefault;
2755 device->FmtType = DevFmtTypeDefault;
2756
2757 ConfigValueUInt(NULL, "sources", &device->MaxNoOfSources);
2758 if(device->MaxNoOfSources == 0) device->MaxNoOfSources = 256;
2759
2760 ConfigValueUInt(NULL, "slots", &device->AuxiliaryEffectSlotMax);
2761 if(device->AuxiliaryEffectSlotMax == 0) device->AuxiliaryEffectSlotMax = 4;
2762
2763 ConfigValueUInt(NULL, "sends", &device->NumAuxSends);
2764 if(device->NumAuxSends > MAX_SENDS) device->NumAuxSends = MAX_SENDS;
2765
2766 device->NumStereoSources = 1;
2767 device->NumMonoSources = device->MaxNoOfSources - device->NumStereoSources;
2768
2769 // Open the "backend"
2770 ALCdevice_OpenPlayback(device, "Loopback");
2771 do {
2772 device->next = DeviceList;
2773 } while(!CompExchangePtr((XchgPtr*)&DeviceList, device->next, device));
2774
2775 TRACE("Created device %p\n", device);
2776 return device;
2777 }
2778
2779 /* alcIsRenderFormatSupportedSOFT
2780 *
2781 * Determines if the loopback device supports the given format for rendering.
2782 */
2783 ALC_API ALCboolean ALC_APIENTRY alcIsRenderFormatSupportedSOFT(ALCdevice *device, ALCsizei freq, ALCenum channels, ALCenum type)
2784 {
2785 ALCboolean ret = ALC_FALSE;
2786
2787 if(!(device=VerifyDevice(device)) || device->Type != Loopback)
2788 alcSetError(device, ALC_INVALID_DEVICE);
2789 else if(freq <= 0)
2790 alcSetError(device, ALC_INVALID_VALUE);
2791 else
2792 {
2793 if(IsValidALCType(type) && BytesFromDevFmt(type) > 0 &&
2794 IsValidALCChannels(channels) && ChannelsFromDevFmt(channels) > 0 &&
2795 freq >= MIN_OUTPUT_RATE)
2796 ret = ALC_TRUE;
2797 }
2798 if(device) ALCdevice_DecRef(device);
2799
2800 return ret;
2801 }
2802
2803 /* alcRenderSamplesSOFT
2804 *
2805 * Renders some samples into a buffer, using the format last set by the
2806 * attributes given to alcCreateContext.
2807 */
2808 ALC_API void ALC_APIENTRY alcRenderSamplesSOFT(ALCdevice *device, ALCvoid *buffer, ALCsizei samples)
2809 {
2810 if(!(device=VerifyDevice(device)) || device->Type != Loopback)
2811 alcSetError(device, ALC_INVALID_DEVICE);
2812 else if(samples < 0 || (samples > 0 && buffer == NULL))
2813 alcSetError(device, ALC_INVALID_VALUE);
2814 else
2815 aluMixData(device, buffer, samples);
2816 if(device) ALCdevice_DecRef(device);
2817 }
2818
2819
2820 static void ReleaseALC(void)
2821 {
2822 ALCdevice *dev;
2823
2824 free(alcAllDeviceList); alcAllDeviceList = NULL;
2825 alcAllDeviceListSize = 0;
2826 free(alcCaptureDeviceList); alcCaptureDeviceList = NULL;
2827 alcCaptureDeviceListSize = 0;
2828
2829 free(alcDefaultAllDeviceSpecifier);
2830 alcDefaultAllDeviceSpecifier = NULL;
2831 free(alcCaptureDefaultDeviceSpecifier);
2832 alcCaptureDefaultDeviceSpecifier = NULL;
2833
2834 if((dev=ExchangePtr((XchgPtr*)&DeviceList, NULL)) != NULL)
2835 {
2836 ALCuint num = 0;
2837 do {
2838 num++;
2839 } while((dev=dev->next) != NULL);
2840 ERR("%u device%s not closed\n", num, (num>1)?"s":"");
2841 }
2842 }
2843
2844 ///////////////////////////////////////////////////////
Software OpenAL implementation