/** * OpenAL cross platform audio library * Copyright (C) 1999-2007 by authors. * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * Or go to http://www.gnu.org/copyleft/lgpl.html */ #include "config.h" #include #include #include #include #include #include #include "alMain.h" #include "alSource.h" #include "AL/al.h" #include "AL/alc.h" #include "alThunk.h" #include "alSource.h" #include "alBuffer.h" #include "alAuxEffectSlot.h" #include "alError.h" #include "bs2b.h" #include "alu.h" /************************************************ * Backends ************************************************/ #define EmptyFuncs { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL } static struct BackendInfo BackendList[] = { #ifdef HAVE_PULSEAUDIO { "pulse", alc_pulse_init, alc_pulse_deinit, alc_pulse_probe, EmptyFuncs }, #endif #ifdef HAVE_ALSA { "alsa", alc_alsa_init, alc_alsa_deinit, alc_alsa_probe, EmptyFuncs }, #endif #ifdef HAVE_COREAUDIO { "core", alc_ca_init, alc_ca_deinit, alc_ca_probe, EmptyFuncs }, #endif #ifdef HAVE_OSS { "oss", alc_oss_init, alc_oss_deinit, alc_oss_probe, EmptyFuncs }, #endif #ifdef HAVE_SOLARIS { "solaris", alc_solaris_init, alc_solaris_deinit, alc_solaris_probe, EmptyFuncs }, #endif #ifdef HAVE_SNDIO { "sndio", alc_sndio_init, alc_sndio_deinit, alc_sndio_probe, EmptyFuncs }, #endif #ifdef HAVE_MMDEVAPI { "mmdevapi", alcMMDevApiInit, alcMMDevApiDeinit, alcMMDevApiProbe, EmptyFuncs }, #endif #ifdef HAVE_DSOUND { "dsound", alcDSoundInit, alcDSoundDeinit, alcDSoundProbe, EmptyFuncs }, #endif #ifdef HAVE_WINMM { "winmm", alcWinMMInit, alcWinMMDeinit, alcWinMMProbe, EmptyFuncs }, #endif #ifdef HAVE_PORTAUDIO { "port", alc_pa_init, alc_pa_deinit, alc_pa_probe, EmptyFuncs }, #endif #ifdef HAVE_OPENSL { "opensl", alc_opensl_init, alc_opensl_deinit, alc_opensl_probe, EmptyFuncs }, #endif { "null", alc_null_init, alc_null_deinit, alc_null_probe, EmptyFuncs }, #ifdef HAVE_WAVE { "wave", alc_wave_init, alc_wave_deinit, alc_wave_probe, EmptyFuncs }, #endif { NULL, NULL, NULL, NULL, EmptyFuncs } }; static struct BackendInfo BackendLoopback = { "loopback", alc_loopback_init, alc_loopback_deinit, alc_loopback_probe, EmptyFuncs }; #undef EmptyFuncs static struct BackendInfo PlaybackBackend; static struct BackendInfo CaptureBackend; /************************************************ * Functions, enums, and errors ************************************************/ typedef struct ALCfunction { const ALCchar *funcName; ALCvoid *address; } ALCfunction; typedef struct ALCenums { const ALCchar *enumName; ALCenum value; } ALCenums; #define DECL(x) { #x, (ALCvoid*)(x) } static const ALCfunction alcFunctions[] = { DECL(alcCreateContext), DECL(alcMakeContextCurrent), DECL(alcProcessContext), DECL(alcSuspendContext), DECL(alcDestroyContext), DECL(alcGetCurrentContext), DECL(alcGetContextsDevice), DECL(alcOpenDevice), DECL(alcCloseDevice), DECL(alcGetError), DECL(alcIsExtensionPresent), DECL(alcGetProcAddress), DECL(alcGetEnumValue), DECL(alcGetString), DECL(alcGetIntegerv), DECL(alcCaptureOpenDevice), DECL(alcCaptureCloseDevice), DECL(alcCaptureStart), DECL(alcCaptureStop), DECL(alcCaptureSamples), DECL(alcSetThreadContext), DECL(alcGetThreadContext), DECL(alcLoopbackOpenDeviceSOFT), DECL(alcIsRenderFormatSupportedSOFT), DECL(alcRenderSamplesSOFT), DECL(alEnable), DECL(alDisable), DECL(alIsEnabled), DECL(alGetString), DECL(alGetBooleanv), DECL(alGetIntegerv), DECL(alGetFloatv), DECL(alGetDoublev), DECL(alGetBoolean), DECL(alGetInteger), DECL(alGetFloat), DECL(alGetDouble), DECL(alGetError), DECL(alIsExtensionPresent), DECL(alGetProcAddress), DECL(alGetEnumValue), DECL(alListenerf), DECL(alListener3f), DECL(alListenerfv), DECL(alListeneri), DECL(alListener3i), DECL(alListeneriv), DECL(alGetListenerf), DECL(alGetListener3f), DECL(alGetListenerfv), DECL(alGetListeneri), DECL(alGetListener3i), DECL(alGetListeneriv), DECL(alGenSources), DECL(alDeleteSources), DECL(alIsSource), DECL(alSourcef), DECL(alSource3f), DECL(alSourcefv), DECL(alSourcei), DECL(alSource3i), DECL(alSourceiv), DECL(alGetSourcef), DECL(alGetSource3f), DECL(alGetSourcefv), DECL(alGetSourcei), DECL(alGetSource3i), DECL(alGetSourceiv), DECL(alSourcePlayv), DECL(alSourceStopv), DECL(alSourceRewindv), DECL(alSourcePausev), DECL(alSourcePlay), DECL(alSourceStop), DECL(alSourceRewind), DECL(alSourcePause), DECL(alSourceQueueBuffers), DECL(alSourceUnqueueBuffers), DECL(alGenBuffers), DECL(alDeleteBuffers), DECL(alIsBuffer), DECL(alBufferData), DECL(alBufferf), DECL(alBuffer3f), DECL(alBufferfv), DECL(alBufferi), DECL(alBuffer3i), DECL(alBufferiv), DECL(alGetBufferf), DECL(alGetBuffer3f), DECL(alGetBufferfv), DECL(alGetBufferi), DECL(alGetBuffer3i), DECL(alGetBufferiv), DECL(alDopplerFactor), DECL(alDopplerVelocity), DECL(alSpeedOfSound), DECL(alDistanceModel), DECL(alGenFilters), DECL(alDeleteFilters), DECL(alIsFilter), DECL(alFilteri), DECL(alFilteriv), DECL(alFilterf), DECL(alFilterfv), DECL(alGetFilteri), DECL(alGetFilteriv), DECL(alGetFilterf), DECL(alGetFilterfv), DECL(alGenEffects), DECL(alDeleteEffects), DECL(alIsEffect), DECL(alEffecti), DECL(alEffectiv), DECL(alEffectf), DECL(alEffectfv), DECL(alGetEffecti), DECL(alGetEffectiv), DECL(alGetEffectf), DECL(alGetEffectfv), DECL(alGenAuxiliaryEffectSlots), DECL(alDeleteAuxiliaryEffectSlots), DECL(alIsAuxiliaryEffectSlot), DECL(alAuxiliaryEffectSloti), DECL(alAuxiliaryEffectSlotiv), DECL(alAuxiliaryEffectSlotf), DECL(alAuxiliaryEffectSlotfv), DECL(alGetAuxiliaryEffectSloti), DECL(alGetAuxiliaryEffectSlotiv), DECL(alGetAuxiliaryEffectSlotf), DECL(alGetAuxiliaryEffectSlotfv), DECL(alBufferSubDataSOFT), DECL(alBufferSamplesSOFT), DECL(alBufferSubSamplesSOFT), DECL(alGetBufferSamplesSOFT), DECL(alIsBufferFormatSupportedSOFT), DECL(alDeferUpdatesSOFT), DECL(alProcessUpdatesSOFT), { NULL, NULL } }; #undef DECL #define DECL(x) { #x, (x) } static const ALCenums enumeration[] = { DECL(ALC_INVALID), DECL(ALC_FALSE), DECL(ALC_TRUE), DECL(ALC_MAJOR_VERSION), DECL(ALC_MINOR_VERSION), DECL(ALC_ATTRIBUTES_SIZE), DECL(ALC_ALL_ATTRIBUTES), DECL(ALC_DEFAULT_DEVICE_SPECIFIER), DECL(ALC_DEVICE_SPECIFIER), DECL(ALC_ALL_DEVICES_SPECIFIER), DECL(ALC_DEFAULT_ALL_DEVICES_SPECIFIER), DECL(ALC_EXTENSIONS), DECL(ALC_FREQUENCY), DECL(ALC_REFRESH), DECL(ALC_SYNC), DECL(ALC_MONO_SOURCES), DECL(ALC_STEREO_SOURCES), DECL(ALC_CAPTURE_DEVICE_SPECIFIER), DECL(ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER), DECL(ALC_CAPTURE_SAMPLES), DECL(ALC_CONNECTED), DECL(ALC_EFX_MAJOR_VERSION), DECL(ALC_EFX_MINOR_VERSION), DECL(ALC_MAX_AUXILIARY_SENDS), DECL(ALC_FORMAT_CHANNELS_SOFT), DECL(ALC_FORMAT_TYPE_SOFT), DECL(ALC_MONO_SOFT), DECL(ALC_STEREO_SOFT), DECL(ALC_QUAD_SOFT), DECL(ALC_5POINT1_SOFT), DECL(ALC_6POINT1_SOFT), DECL(ALC_7POINT1_SOFT), DECL(ALC_BYTE_SOFT), DECL(ALC_UNSIGNED_BYTE_SOFT), DECL(ALC_SHORT_SOFT), DECL(ALC_UNSIGNED_SHORT_SOFT), DECL(ALC_INT_SOFT), DECL(ALC_UNSIGNED_INT_SOFT), DECL(ALC_FLOAT_SOFT), DECL(ALC_NO_ERROR), DECL(ALC_INVALID_DEVICE), DECL(ALC_INVALID_CONTEXT), DECL(ALC_INVALID_ENUM), DECL(ALC_INVALID_VALUE), DECL(ALC_OUT_OF_MEMORY), DECL(AL_INVALID), DECL(AL_NONE), DECL(AL_FALSE), DECL(AL_TRUE), DECL(AL_SOURCE_RELATIVE), DECL(AL_CONE_INNER_ANGLE), DECL(AL_CONE_OUTER_ANGLE), DECL(AL_PITCH), DECL(AL_POSITION), DECL(AL_DIRECTION), DECL(AL_VELOCITY), DECL(AL_LOOPING), DECL(AL_BUFFER), DECL(AL_GAIN), DECL(AL_MIN_GAIN), DECL(AL_MAX_GAIN), DECL(AL_ORIENTATION), DECL(AL_REFERENCE_DISTANCE), DECL(AL_ROLLOFF_FACTOR), DECL(AL_CONE_OUTER_GAIN), DECL(AL_MAX_DISTANCE), DECL(AL_SEC_OFFSET), DECL(AL_SAMPLE_OFFSET), DECL(AL_SAMPLE_RW_OFFSETS_SOFT), DECL(AL_BYTE_OFFSET), DECL(AL_BYTE_RW_OFFSETS_SOFT), DECL(AL_SOURCE_TYPE), DECL(AL_STATIC), DECL(AL_STREAMING), DECL(AL_UNDETERMINED), DECL(AL_METERS_PER_UNIT), DECL(AL_DIRECT_CHANNELS_SOFT), DECL(AL_DIRECT_FILTER), DECL(AL_AUXILIARY_SEND_FILTER), DECL(AL_AIR_ABSORPTION_FACTOR), DECL(AL_ROOM_ROLLOFF_FACTOR), DECL(AL_CONE_OUTER_GAINHF), DECL(AL_DIRECT_FILTER_GAINHF_AUTO), DECL(AL_AUXILIARY_SEND_FILTER_GAIN_AUTO), DECL(AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO), DECL(AL_SOURCE_STATE), DECL(AL_INITIAL), DECL(AL_PLAYING), DECL(AL_PAUSED), DECL(AL_STOPPED), DECL(AL_BUFFERS_QUEUED), DECL(AL_BUFFERS_PROCESSED), DECL(AL_FORMAT_MONO8), DECL(AL_FORMAT_MONO16), DECL(AL_FORMAT_MONO_FLOAT32), DECL(AL_FORMAT_MONO_DOUBLE_EXT), DECL(AL_FORMAT_STEREO8), DECL(AL_FORMAT_STEREO16), DECL(AL_FORMAT_STEREO_FLOAT32), DECL(AL_FORMAT_STEREO_DOUBLE_EXT), DECL(AL_FORMAT_MONO_IMA4), DECL(AL_FORMAT_STEREO_IMA4), DECL(AL_FORMAT_QUAD8_LOKI), DECL(AL_FORMAT_QUAD16_LOKI), DECL(AL_FORMAT_QUAD8), DECL(AL_FORMAT_QUAD16), DECL(AL_FORMAT_QUAD32), DECL(AL_FORMAT_51CHN8), DECL(AL_FORMAT_51CHN16), DECL(AL_FORMAT_51CHN32), DECL(AL_FORMAT_61CHN8), DECL(AL_FORMAT_61CHN16), DECL(AL_FORMAT_61CHN32), DECL(AL_FORMAT_71CHN8), DECL(AL_FORMAT_71CHN16), DECL(AL_FORMAT_71CHN32), DECL(AL_FORMAT_REAR8), DECL(AL_FORMAT_REAR16), DECL(AL_FORMAT_REAR32), DECL(AL_FORMAT_MONO_MULAW), DECL(AL_FORMAT_MONO_MULAW_EXT), DECL(AL_FORMAT_STEREO_MULAW), DECL(AL_FORMAT_STEREO_MULAW_EXT), DECL(AL_FORMAT_QUAD_MULAW), DECL(AL_FORMAT_51CHN_MULAW), DECL(AL_FORMAT_61CHN_MULAW), DECL(AL_FORMAT_71CHN_MULAW), DECL(AL_FORMAT_REAR_MULAW), DECL(AL_FORMAT_MONO_ALAW_EXT), DECL(AL_FORMAT_STEREO_ALAW_EXT), DECL(AL_MONO8_SOFT), DECL(AL_MONO16_SOFT), DECL(AL_MONO32F_SOFT), DECL(AL_STEREO8_SOFT), DECL(AL_STEREO16_SOFT), DECL(AL_STEREO32F_SOFT), DECL(AL_QUAD8_SOFT), DECL(AL_QUAD16_SOFT), DECL(AL_QUAD32F_SOFT), DECL(AL_REAR8_SOFT), DECL(AL_REAR16_SOFT), DECL(AL_REAR32F_SOFT), DECL(AL_5POINT1_8_SOFT), DECL(AL_5POINT1_16_SOFT), DECL(AL_5POINT1_32F_SOFT), DECL(AL_6POINT1_8_SOFT), DECL(AL_6POINT1_16_SOFT), DECL(AL_6POINT1_32F_SOFT), DECL(AL_7POINT1_8_SOFT), DECL(AL_7POINT1_16_SOFT), DECL(AL_7POINT1_32F_SOFT), DECL(AL_MONO_SOFT), DECL(AL_STEREO_SOFT), DECL(AL_QUAD_SOFT), DECL(AL_REAR_SOFT), DECL(AL_5POINT1_SOFT), DECL(AL_6POINT1_SOFT), DECL(AL_7POINT1_SOFT), DECL(AL_BYTE_SOFT), DECL(AL_UNSIGNED_BYTE_SOFT), DECL(AL_SHORT_SOFT), DECL(AL_UNSIGNED_SHORT_SOFT), DECL(AL_INT_SOFT), DECL(AL_UNSIGNED_INT_SOFT), DECL(AL_FLOAT_SOFT), DECL(AL_DOUBLE_SOFT), DECL(AL_BYTE3_SOFT), DECL(AL_UNSIGNED_BYTE3_SOFT), DECL(AL_FREQUENCY), DECL(AL_BITS), DECL(AL_CHANNELS), DECL(AL_SIZE), DECL(AL_INTERNAL_FORMAT_SOFT), DECL(AL_BYTE_LENGTH_SOFT), DECL(AL_SAMPLE_LENGTH_SOFT), DECL(AL_SEC_LENGTH_SOFT), DECL(AL_UNUSED), DECL(AL_PENDING), DECL(AL_PROCESSED), DECL(AL_NO_ERROR), DECL(AL_INVALID_NAME), DECL(AL_INVALID_ENUM), DECL(AL_INVALID_VALUE), DECL(AL_INVALID_OPERATION), DECL(AL_OUT_OF_MEMORY), DECL(AL_VENDOR), DECL(AL_VERSION), DECL(AL_RENDERER), DECL(AL_EXTENSIONS), DECL(AL_DOPPLER_FACTOR), DECL(AL_DOPPLER_VELOCITY), DECL(AL_DISTANCE_MODEL), DECL(AL_SPEED_OF_SOUND), DECL(AL_SOURCE_DISTANCE_MODEL), DECL(AL_DEFERRED_UPDATES_SOFT), DECL(AL_INVERSE_DISTANCE), DECL(AL_INVERSE_DISTANCE_CLAMPED), DECL(AL_LINEAR_DISTANCE), DECL(AL_LINEAR_DISTANCE_CLAMPED), DECL(AL_EXPONENT_DISTANCE), DECL(AL_EXPONENT_DISTANCE_CLAMPED), DECL(AL_FILTER_TYPE), DECL(AL_FILTER_NULL), DECL(AL_FILTER_LOWPASS), #if 0 DECL(AL_FILTER_HIGHPASS), DECL(AL_FILTER_BANDPASS), #endif DECL(AL_LOWPASS_GAIN), DECL(AL_LOWPASS_GAINHF), DECL(AL_EFFECT_TYPE), DECL(AL_EFFECT_NULL), DECL(AL_EFFECT_REVERB), DECL(AL_EFFECT_EAXREVERB), #if 0 DECL(AL_EFFECT_CHORUS), DECL(AL_EFFECT_DISTORTION), #endif DECL(AL_EFFECT_ECHO), #if 0 DECL(AL_EFFECT_FLANGER), DECL(AL_EFFECT_FREQUENCY_SHIFTER), DECL(AL_EFFECT_VOCAL_MORPHER), DECL(AL_EFFECT_PITCH_SHIFTER), #endif DECL(AL_EFFECT_RING_MODULATOR), #if 0 DECL(AL_EFFECT_AUTOWAH), DECL(AL_EFFECT_COMPRESSOR), DECL(AL_EFFECT_EQUALIZER), #endif DECL(AL_EFFECT_DEDICATED_LOW_FREQUENCY_EFFECT), DECL(AL_EFFECT_DEDICATED_DIALOGUE), DECL(AL_EAXREVERB_DENSITY), DECL(AL_EAXREVERB_DIFFUSION), DECL(AL_EAXREVERB_GAIN), DECL(AL_EAXREVERB_GAINHF), DECL(AL_EAXREVERB_GAINLF), DECL(AL_EAXREVERB_DECAY_TIME), DECL(AL_EAXREVERB_DECAY_HFRATIO), DECL(AL_EAXREVERB_DECAY_LFRATIO), DECL(AL_EAXREVERB_REFLECTIONS_GAIN), DECL(AL_EAXREVERB_REFLECTIONS_DELAY), DECL(AL_EAXREVERB_REFLECTIONS_PAN), DECL(AL_EAXREVERB_LATE_REVERB_GAIN), DECL(AL_EAXREVERB_LATE_REVERB_DELAY), DECL(AL_EAXREVERB_LATE_REVERB_PAN), DECL(AL_EAXREVERB_ECHO_TIME), DECL(AL_EAXREVERB_ECHO_DEPTH), DECL(AL_EAXREVERB_MODULATION_TIME), DECL(AL_EAXREVERB_MODULATION_DEPTH), DECL(AL_EAXREVERB_AIR_ABSORPTION_GAINHF), DECL(AL_EAXREVERB_HFREFERENCE), DECL(AL_EAXREVERB_LFREFERENCE), DECL(AL_EAXREVERB_ROOM_ROLLOFF_FACTOR), DECL(AL_EAXREVERB_DECAY_HFLIMIT), DECL(AL_REVERB_DENSITY), DECL(AL_REVERB_DIFFUSION), DECL(AL_REVERB_GAIN), DECL(AL_REVERB_GAINHF), DECL(AL_REVERB_DECAY_TIME), DECL(AL_REVERB_DECAY_HFRATIO), DECL(AL_REVERB_REFLECTIONS_GAIN), DECL(AL_REVERB_REFLECTIONS_DELAY), DECL(AL_REVERB_LATE_REVERB_GAIN), DECL(AL_REVERB_LATE_REVERB_DELAY), DECL(AL_REVERB_AIR_ABSORPTION_GAINHF), DECL(AL_REVERB_ROOM_ROLLOFF_FACTOR), DECL(AL_REVERB_DECAY_HFLIMIT), DECL(AL_ECHO_DELAY), DECL(AL_ECHO_LRDELAY), DECL(AL_ECHO_DAMPING), DECL(AL_ECHO_FEEDBACK), DECL(AL_ECHO_SPREAD), DECL(AL_RING_MODULATOR_FREQUENCY), DECL(AL_RING_MODULATOR_HIGHPASS_CUTOFF), DECL(AL_RING_MODULATOR_WAVEFORM), DECL(AL_DEDICATED_GAIN), { NULL, (ALCenum)0 } }; #undef DECL static const ALCchar alcNoError[] = "No Error"; static const ALCchar alcErrInvalidDevice[] = "Invalid Device"; static const ALCchar alcErrInvalidContext[] = "Invalid Context"; static const ALCchar alcErrInvalidEnum[] = "Invalid Enum"; static const ALCchar alcErrInvalidValue[] = "Invalid Value"; static const ALCchar alcErrOutOfMemory[] = "Out of Memory"; /************************************************ * Global variables ************************************************/ /* Enumerated device names */ static const ALCchar alcDefaultName[] = "OpenAL Soft\0"; static ALCchar *alcAllDevicesList; static ALCchar *alcCaptureDeviceList; /* Sizes only include the first ending null character, not the second */ static size_t alcAllDevicesListSize; static size_t alcCaptureDeviceListSize; /* Default is always the first in the list */ static ALCchar *alcDefaultAllDevicesSpecifier; static ALCchar *alcCaptureDefaultDeviceSpecifier; /* Default context extensions */ static const ALchar alExtList[] = "AL_EXT_ALAW AL_EXT_DOUBLE AL_EXT_EXPONENT_DISTANCE AL_EXT_FLOAT32 " "AL_EXT_IMA4 AL_EXT_LINEAR_DISTANCE AL_EXT_MCFORMATS AL_EXT_MULAW " "AL_EXT_MULAW_MCFORMATS AL_EXT_OFFSET AL_EXT_source_distance_model " "AL_LOKI_quadriphonic AL_SOFT_buffer_samples AL_SOFT_buffer_sub_data " "AL_SOFTX_deferred_updates AL_SOFT_direct_channels AL_SOFT_loop_points"; static volatile ALCenum LastNullDeviceError = ALC_NO_ERROR; /* Thread-local current context */ static pthread_key_t LocalContext; /* Process-wide current context */ static ALCcontext *volatile GlobalContext = NULL; /* Mixing thread piority level */ ALint RTPrioLevel; FILE *LogFile; #ifdef _DEBUG enum LogLevel LogLevel = LogWarning; #else enum LogLevel LogLevel = LogError; #endif /* Flag to trap ALC device errors */ static ALCboolean TrapALCError = ALC_FALSE; /* One-time configuration init control */ static pthread_once_t alc_config_once = PTHREAD_ONCE_INIT; /* Default effect that applies to sources that don't have an effect on send 0 */ static ALeffect DefaultEffect; /************************************************ * ALC information ************************************************/ static const ALCchar alcNoDeviceExtList[] = "ALC_ENUMERATE_ALL_EXT ALC_ENUMERATION_EXT ALC_EXT_CAPTURE " "ALC_EXT_thread_local_context ALC_SOFT_loopback"; static const ALCchar alcExtensionList[] = "ALC_ENUMERATE_ALL_EXT ALC_ENUMERATION_EXT ALC_EXT_CAPTURE " "ALC_EXT_DEDICATED ALC_EXT_disconnect ALC_EXT_EFX " "ALC_EXT_thread_local_context ALC_SOFT_loopback"; static const ALCint alcMajorVersion = 1; static const ALCint alcMinorVersion = 1; static const ALCint alcEFXMajorVersion = 1; static const ALCint alcEFXMinorVersion = 0; /************************************************ * Device lists ************************************************/ static ALCdevice *volatile DeviceList = NULL; static CRITICAL_SECTION ListLock; static void LockLists(void) { EnterCriticalSection(&ListLock); } static void UnlockLists(void) { LeaveCriticalSection(&ListLock); } /************************************************ * Library initialization ************************************************/ #if defined(_WIN32) static void alc_init(void); static void alc_deinit(void); static void alc_deinit_safe(void); UIntMap TlsDestructor; #ifndef AL_LIBTYPE_STATIC BOOL APIENTRY DllMain(HINSTANCE hModule,DWORD ul_reason_for_call,LPVOID lpReserved) { ALsizei i; // Perform actions based on the reason for calling. switch(ul_reason_for_call) { case DLL_PROCESS_ATTACH: /* Pin the DLL so we won't get unloaded until the process terminates */ GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_PIN | GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, (WCHAR*)hModule, &hModule); InitUIntMap(&TlsDestructor, ~0); alc_init(); break; case DLL_THREAD_DETACH: LockUIntMapRead(&TlsDestructor); for(i = 0;i < TlsDestructor.size;i++) { void *ptr = pthread_getspecific(TlsDestructor.array[i].key); void (*callback)(void*) = (void(*)(void*))TlsDestructor.array[i].value; if(ptr && callback) callback(ptr); } UnlockUIntMapRead(&TlsDestructor); break; case DLL_PROCESS_DETACH: if(!lpReserved) alc_deinit(); else alc_deinit_safe(); ResetUIntMap(&TlsDestructor); break; } return TRUE; } #elif defined(_MSC_VER) #pragma section(".CRT$XCU",read) static void alc_constructor(void); static void alc_destructor(void); __declspec(allocate(".CRT$XCU")) void (__cdecl* alc_constructor_)(void) = alc_constructor; static void alc_constructor(void) { atexit(alc_destructor); alc_init(); } static void alc_destructor(void) { alc_deinit(); } #elif defined(HAVE_GCC_DESTRUCTOR) static void alc_init(void) __attribute__((constructor)); static void alc_deinit(void) __attribute__((destructor)); #else #error "No static initialization available on this platform!" #endif #elif defined(HAVE_GCC_DESTRUCTOR) static void alc_init(void) __attribute__((constructor)); static void alc_deinit(void) __attribute__((destructor)); #else #error "No global initialization available on this platform!" #endif static void ReleaseThreadCtx(void *ptr); static void alc_init(void) { const char *str; LogFile = stderr; str = getenv("__ALSOFT_HALF_ANGLE_CONES"); if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1)) ConeScale = 1.0f; str = getenv("__ALSOFT_REVERSE_Z"); if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1)) ZScale = -1.0f; pthread_key_create(&LocalContext, ReleaseThreadCtx); InitializeCriticalSection(&ListLock); ThunkInit(); } static void alc_initconfig(void) { const char *devs, *str; float valf; int i, n; str = getenv("ALSOFT_LOGLEVEL"); if(str) { long lvl = strtol(str, NULL, 0); if(lvl >= NoLog && lvl <= LogRef) LogLevel = lvl; } str = getenv("ALSOFT_LOGFILE"); if(str && str[0]) { FILE *logfile = fopen(str, "wat"); if(logfile) LogFile = logfile; else ERR("Failed to open log file '%s'\n", str); } ReadALConfig(); InitHrtf(); #ifdef _WIN32 RTPrioLevel = 1; #else RTPrioLevel = 0; #endif ConfigValueInt(NULL, "rt-prio", &RTPrioLevel); if(ConfigValueStr(NULL, "resampler", &str)) { if(strcasecmp(str, "point") == 0 || strcasecmp(str, "none") == 0) DefaultResampler = PointResampler; else if(strcasecmp(str, "linear") == 0) DefaultResampler = LinearResampler; else if(strcasecmp(str, "cubic") == 0) DefaultResampler = CubicResampler; else { char *end; n = strtol(str, &end, 0); if(*end == '\0' && (n == PointResampler || n == LinearResampler || n == CubicResampler)) DefaultResampler = n; else WARN("Invalid resampler: %s\n", str); } } str = getenv("ALSOFT_TRAP_ERROR"); if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1)) { TrapALError = AL_TRUE; TrapALCError = AL_TRUE; } else { str = getenv("ALSOFT_TRAP_AL_ERROR"); if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1)) TrapALError = AL_TRUE; TrapALError = GetConfigValueBool(NULL, "trap-al-error", TrapALError); str = getenv("ALSOFT_TRAP_ALC_ERROR"); if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1)) TrapALCError = ALC_TRUE; TrapALCError = GetConfigValueBool(NULL, "trap-alc-error", TrapALCError); } if(ConfigValueFloat("reverb", "boost", &valf)) ReverbBoost *= powf(10.0f, valf / 20.0f); EmulateEAXReverb = GetConfigValueBool("reverb", "emulate-eax", AL_FALSE); if(((devs=getenv("ALSOFT_DRIVERS")) && devs[0]) || ConfigValueStr(NULL, "drivers", &devs)) { int n; size_t len; const char *next = devs; int endlist, delitem; i = 0; do { devs = next; next = strchr(devs, ','); delitem = (devs[0] == '-'); if(devs[0] == '-') devs++; if(!devs[0] || devs[0] == ',') { endlist = 0; continue; } endlist = 1; len = (next ? ((size_t)(next-devs)) : strlen(devs)); for(n = i;BackendList[n].Init;n++) { if(len == strlen(BackendList[n].name) && strncmp(BackendList[n].name, devs, len) == 0) { if(delitem) { do { BackendList[n] = BackendList[n+1]; ++n; } while(BackendList[n].Init); } else { struct BackendInfo Bkp = BackendList[n]; while(n > i) { BackendList[n] = BackendList[n-1]; --n; } BackendList[n] = Bkp; i++; } break; } } } while(next++); if(endlist) { BackendList[i].name = NULL; BackendList[i].Init = NULL; BackendList[i].Deinit = NULL; BackendList[i].Probe = NULL; } } for(i = 0;BackendList[i].Init && (!PlaybackBackend.name || !CaptureBackend.name);i++) { if(!BackendList[i].Init(&BackendList[i].Funcs)) { WARN("Failed to initialize backend \"%s\"\n", BackendList[i].name); continue; } TRACE("Initialized backend \"%s\"\n", BackendList[i].name); if(BackendList[i].Funcs.OpenPlayback && !PlaybackBackend.name) { PlaybackBackend = BackendList[i]; TRACE("Added \"%s\" for playback\n", PlaybackBackend.name); } if(BackendList[i].Funcs.OpenCapture && !CaptureBackend.name) { CaptureBackend = BackendList[i]; TRACE("Added \"%s\" for capture\n", CaptureBackend.name); } } BackendLoopback.Init(&BackendLoopback.Funcs); if(ConfigValueStr(NULL, "excludefx", &str)) { size_t len; const char *next = str; do { str = next; next = strchr(str, ','); if(!str[0] || next == str) continue; len = (next ? ((size_t)(next-str)) : strlen(str)); for(n = 0;EffectList[n].name;n++) { if(len == strlen(EffectList[n].name) && strncmp(EffectList[n].name, str, len) == 0) DisabledEffects[EffectList[n].type] = AL_TRUE; } } while(next++); } InitEffect(&DefaultEffect); str = getenv("ALSOFT_DEFAULT_REVERB"); if((str && str[0]) || ConfigValueStr(NULL, "default-reverb", &str)) LoadReverbPreset(str, &DefaultEffect); } #define DO_INITCONFIG() pthread_once(&alc_config_once, alc_initconfig) /************************************************ * Library deinitialization ************************************************/ static void alc_cleanup(void) { ALCdevice *dev; free(alcAllDevicesList); alcAllDevicesList = NULL; alcAllDevicesListSize = 0; free(alcCaptureDeviceList); alcCaptureDeviceList = NULL; alcCaptureDeviceListSize = 0; free(alcDefaultAllDevicesSpecifier); alcDefaultAllDevicesSpecifier = NULL; free(alcCaptureDefaultDeviceSpecifier); alcCaptureDefaultDeviceSpecifier = NULL; if((dev=ExchangePtr((XchgPtr*)&DeviceList, NULL)) != NULL) { ALCuint num = 0; do { num++; } while((dev=dev->next) != NULL); ERR("%u device%s not closed\n", num, (num>1)?"s":""); } } static void alc_deinit_safe(void) { alc_cleanup(); FreeHrtf(); FreeALConfig(); ThunkExit(); DeleteCriticalSection(&ListLock); pthread_key_delete(LocalContext); if(LogFile != stderr) fclose(LogFile); LogFile = NULL; } static void alc_deinit(void) { int i; alc_cleanup(); memset(&PlaybackBackend, 0, sizeof(PlaybackBackend)); memset(&CaptureBackend, 0, sizeof(CaptureBackend)); for(i = 0;BackendList[i].Deinit;i++) BackendList[i].Deinit(); BackendLoopback.Deinit(); alc_deinit_safe(); } /************************************************ * Device enumeration ************************************************/ static void ProbeList(ALCchar **list, size_t *listsize, enum DevProbe type) { DO_INITCONFIG(); LockLists(); free(*list); *list = NULL; *listsize = 0; if(type == ALL_DEVICE_PROBE && PlaybackBackend.Probe) PlaybackBackend.Probe(type); else if(type == CAPTURE_DEVICE_PROBE && CaptureBackend.Probe) CaptureBackend.Probe(type); UnlockLists(); } static void ProbeAllDevicesList(void) { ProbeList(&alcAllDevicesList, &alcAllDevicesListSize, ALL_DEVICE_PROBE); } static void ProbeCaptureDeviceList(void) { ProbeList(&alcCaptureDeviceList, &alcCaptureDeviceListSize, CAPTURE_DEVICE_PROBE); } static void AppendList(const ALCchar *name, ALCchar **List, size_t *ListSize) { size_t len = strlen(name); void *temp; if(len == 0) return; temp = realloc(*List, (*ListSize) + len + 2); if(!temp) { ERR("Realloc failed to add %s!\n", name); return; } *List = temp; memcpy((*List)+(*ListSize), name, len+1); *ListSize += len+1; (*List)[*ListSize] = 0; } #define DECL_APPEND_LIST_FUNC(type) \ void Append##type##List(const ALCchar *name) \ { AppendList(name, &alc##type##List, &alc##type##ListSize); } DECL_APPEND_LIST_FUNC(AllDevices) DECL_APPEND_LIST_FUNC(CaptureDevice) #undef DECL_APPEND_LIST_FUNC /************************************************ * Device format information ************************************************/ const ALCchar *DevFmtTypeString(enum DevFmtType type) { switch(type) { case DevFmtByte: return "Signed Byte"; case DevFmtUByte: return "Unsigned Byte"; case DevFmtShort: return "Signed Short"; case DevFmtUShort: return "Unsigned Short"; case DevFmtInt: return "Signed Int"; case DevFmtUInt: return "Unsigned Int"; case DevFmtFloat: return "Float"; } return "(unknown type)"; } const ALCchar *DevFmtChannelsString(enum DevFmtChannels chans) { switch(chans) { case DevFmtMono: return "Mono"; case DevFmtStereo: return "Stereo"; case DevFmtQuad: return "Quadraphonic"; case DevFmtX51: return "5.1 Surround"; case DevFmtX51Side: return "5.1 Side"; case DevFmtX61: return "6.1 Surround"; case DevFmtX71: return "7.1 Surround"; } return "(unknown channels)"; } ALuint BytesFromDevFmt(enum DevFmtType type) { switch(type) { case DevFmtByte: return sizeof(ALbyte); case DevFmtUByte: return sizeof(ALubyte); case DevFmtShort: return sizeof(ALshort); case DevFmtUShort: return sizeof(ALushort); case DevFmtInt: return sizeof(ALint); case DevFmtUInt: return sizeof(ALuint); case DevFmtFloat: return sizeof(ALfloat); } return 0; } ALuint ChannelsFromDevFmt(enum DevFmtChannels chans) { switch(chans) { case DevFmtMono: return 1; case DevFmtStereo: return 2; case DevFmtQuad: return 4; case DevFmtX51: return 6; case DevFmtX51Side: return 6; case DevFmtX61: return 7; case DevFmtX71: return 8; } return 0; } static ALboolean DecomposeDevFormat(ALenum format, enum DevFmtChannels *chans, enum DevFmtType *type) { static const struct { ALenum format; enum DevFmtChannels channels; enum DevFmtType type; } list[] = { { AL_FORMAT_MONO8, DevFmtMono, DevFmtUByte }, { AL_FORMAT_MONO16, DevFmtMono, DevFmtShort }, { AL_FORMAT_MONO_FLOAT32, DevFmtMono, DevFmtFloat }, { AL_FORMAT_STEREO8, DevFmtStereo, DevFmtUByte }, { AL_FORMAT_STEREO16, DevFmtStereo, DevFmtShort }, { AL_FORMAT_STEREO_FLOAT32, DevFmtStereo, DevFmtFloat }, { AL_FORMAT_QUAD8, DevFmtQuad, DevFmtUByte }, { AL_FORMAT_QUAD16, DevFmtQuad, DevFmtShort }, { AL_FORMAT_QUAD32, DevFmtQuad, DevFmtFloat }, { AL_FORMAT_51CHN8, DevFmtX51, DevFmtUByte }, { AL_FORMAT_51CHN16, DevFmtX51, DevFmtShort }, { AL_FORMAT_51CHN32, DevFmtX51, DevFmtFloat }, { AL_FORMAT_61CHN8, DevFmtX61, DevFmtUByte }, { AL_FORMAT_61CHN16, DevFmtX61, DevFmtShort }, { AL_FORMAT_61CHN32, DevFmtX61, DevFmtFloat }, { AL_FORMAT_71CHN8, DevFmtX71, DevFmtUByte }, { AL_FORMAT_71CHN16, DevFmtX71, DevFmtShort }, { AL_FORMAT_71CHN32, DevFmtX71, DevFmtFloat }, }; ALuint i; for(i = 0;i < COUNTOF(list);i++) { if(list[i].format == format) { *chans = list[i].channels; *type = list[i].type; return AL_TRUE; } } return AL_FALSE; } static ALCboolean IsValidALCType(ALCenum type) { switch(type) { case ALC_BYTE_SOFT: case ALC_UNSIGNED_BYTE_SOFT: case ALC_SHORT_SOFT: case ALC_UNSIGNED_SHORT_SOFT: case ALC_INT_SOFT: case ALC_UNSIGNED_INT_SOFT: case ALC_FLOAT_SOFT: return ALC_TRUE; } return ALC_FALSE; } static ALCboolean IsValidALCChannels(ALCenum channels) { switch(channels) { case ALC_MONO_SOFT: case ALC_STEREO_SOFT: case ALC_QUAD_SOFT: case ALC_5POINT1_SOFT: case ALC_6POINT1_SOFT: case ALC_7POINT1_SOFT: return ALC_TRUE; } return ALC_FALSE; } /************************************************ * Miscellaneous ALC helpers ************************************************/ /* SetDefaultWFXChannelOrder * * Sets the default channel order used by WaveFormatEx. */ void SetDefaultWFXChannelOrder(ALCdevice *device) { switch(device->FmtChans) { case DevFmtMono: device->DevChannels[0] = FrontCenter; break; case DevFmtStereo: device->DevChannels[0] = FrontLeft; device->DevChannels[1] = FrontRight; break; case DevFmtQuad: device->DevChannels[0] = FrontLeft; device->DevChannels[1] = FrontRight; device->DevChannels[2] = BackLeft; device->DevChannels[3] = BackRight; break; case DevFmtX51: device->DevChannels[0] = FrontLeft; device->DevChannels[1] = FrontRight; device->DevChannels[2] = FrontCenter; device->DevChannels[3] = LFE; device->DevChannels[4] = BackLeft; device->DevChannels[5] = BackRight; break; case DevFmtX51Side: device->DevChannels[0] = FrontLeft; device->DevChannels[1] = FrontRight; device->DevChannels[2] = FrontCenter; device->DevChannels[3] = LFE; device->DevChannels[4] = SideLeft; device->DevChannels[5] = SideRight; break; case DevFmtX61: device->DevChannels[0] = FrontLeft; device->DevChannels[1] = FrontRight; device->DevChannels[2] = FrontCenter; device->DevChannels[3] = LFE; device->DevChannels[4] = BackCenter; device->DevChannels[5] = SideLeft; device->DevChannels[6] = SideRight; break; case DevFmtX71: device->DevChannels[0] = FrontLeft; device->DevChannels[1] = FrontRight; device->DevChannels[2] = FrontCenter; device->DevChannels[3] = LFE; device->DevChannels[4] = BackLeft; device->DevChannels[5] = BackRight; device->DevChannels[6] = SideLeft; device->DevChannels[7] = SideRight; break; } } /* SetDefaultChannelOrder * * Sets the default channel order used by most non-WaveFormatEx-based APIs. */ void SetDefaultChannelOrder(ALCdevice *device) { switch(device->FmtChans) { case DevFmtX51: device->DevChannels[0] = FrontLeft; device->DevChannels[1] = FrontRight; device->DevChannels[2] = BackLeft; device->DevChannels[3] = BackRight; device->DevChannels[4] = FrontCenter; device->DevChannels[5] = LFE; return; case DevFmtX71: device->DevChannels[0] = FrontLeft; device->DevChannels[1] = FrontRight; device->DevChannels[2] = BackLeft; device->DevChannels[3] = BackRight; device->DevChannels[4] = FrontCenter; device->DevChannels[5] = LFE; device->DevChannels[6] = SideLeft; device->DevChannels[7] = SideRight; return; /* Same as WFX order */ case DevFmtMono: case DevFmtStereo: case DevFmtQuad: case DevFmtX51Side: case DevFmtX61: break; } SetDefaultWFXChannelOrder(device); } /* alcSetError * * Stores the latest ALC device error */ static void alcSetError(ALCdevice *device, ALCenum errorCode) { if(TrapALCError) { #ifdef _WIN32 /* DebugBreak() will cause an exception if there is no debugger */ if(IsDebuggerPresent()) DebugBreak(); #elif defined(SIGTRAP) raise(SIGTRAP); #endif } if(device) device->LastError = errorCode; else LastNullDeviceError = errorCode; } /* UpdateDeviceParams * * Updates device parameters according to the attribute list (caller is * responsible for holding the list lock). */ static ALCenum UpdateDeviceParams(ALCdevice *device, const ALCint *attrList) { ALCcontext *context; enum DevFmtChannels oldChans; enum DevFmtType oldType; ALCuint oldFreq; int oldMode; ALuint i; // Check for attributes if(device->Type == Loopback) { enum { GotFreq = 1<<0, GotChans = 1<<1, GotType = 1<<2, GotAll = GotFreq|GotChans|GotType }; ALCuint freq, numMono, numStereo, numSends; enum DevFmtChannels schans; enum DevFmtType stype; ALCuint attrIdx = 0; ALCint gotFmt = 0; if(!attrList) { WARN("Missing attributes for loopback device\n"); return ALC_INVALID_VALUE; } numMono = device->NumMonoSources; numStereo = device->NumStereoSources; numSends = device->NumAuxSends; schans = device->FmtChans; stype = device->FmtType; freq = device->Frequency; while(attrList[attrIdx]) { if(attrList[attrIdx] == ALC_FORMAT_CHANNELS_SOFT) { ALCint val = attrList[attrIdx + 1]; if(!IsValidALCChannels(val) || !ChannelsFromDevFmt(val)) return ALC_INVALID_VALUE; schans = val; gotFmt |= GotChans; } if(attrList[attrIdx] == ALC_FORMAT_TYPE_SOFT) { ALCint val = attrList[attrIdx + 1]; if(!IsValidALCType(val) || !BytesFromDevFmt(val)) return ALC_INVALID_VALUE; stype = val; gotFmt |= GotType; } if(attrList[attrIdx] == ALC_FREQUENCY) { freq = attrList[attrIdx + 1]; if(freq < MIN_OUTPUT_RATE) return ALC_INVALID_VALUE; gotFmt |= GotFreq; } if(attrList[attrIdx] == ALC_STEREO_SOURCES) { numStereo = attrList[attrIdx + 1]; if(numStereo > device->MaxNoOfSources) numStereo = device->MaxNoOfSources; numMono = device->MaxNoOfSources - numStereo; } if(attrList[attrIdx] == ALC_MAX_AUXILIARY_SENDS) numSends = attrList[attrIdx + 1]; attrIdx += 2; } if(gotFmt != GotAll) { WARN("Missing format for loopback device\n"); return ALC_INVALID_VALUE; } ConfigValueUInt(NULL, "sends", &numSends); numSends = minu(MAX_SENDS, numSends); if((device->Flags&DEVICE_RUNNING)) ALCdevice_StopPlayback(device); device->Flags &= ~DEVICE_RUNNING; device->Frequency = freq; device->FmtChans = schans; device->FmtType = stype; device->NumMonoSources = numMono; device->NumStereoSources = numStereo; device->NumAuxSends = numSends; } else if(attrList && attrList[0]) { ALCuint freq, numMono, numStereo, numSends; ALCuint attrIdx = 0; /* If a context is already running on the device, stop playback so the * device attributes can be updated. */ if((device->Flags&DEVICE_RUNNING)) ALCdevice_StopPlayback(device); device->Flags &= ~DEVICE_RUNNING; freq = device->Frequency; numMono = device->NumMonoSources; numStereo = device->NumStereoSources; numSends = device->NumAuxSends; while(attrList[attrIdx]) { if(attrList[attrIdx] == ALC_FREQUENCY) { freq = attrList[attrIdx + 1]; device->Flags |= DEVICE_FREQUENCY_REQUEST; } if(attrList[attrIdx] == ALC_STEREO_SOURCES) { numStereo = attrList[attrIdx + 1]; if(numStereo > device->MaxNoOfSources) numStereo = device->MaxNoOfSources; numMono = device->MaxNoOfSources - numStereo; } if(attrList[attrIdx] == ALC_MAX_AUXILIARY_SENDS) numSends = attrList[attrIdx + 1]; attrIdx += 2; } ConfigValueUInt(NULL, "frequency", &freq); freq = maxu(freq, MIN_OUTPUT_RATE); ConfigValueUInt(NULL, "sends", &numSends); numSends = minu(MAX_SENDS, numSends); device->UpdateSize = (ALuint64)device->UpdateSize * freq / device->Frequency; device->Frequency = freq; device->NumMonoSources = numMono; device->NumStereoSources = numStereo; device->NumAuxSends = numSends; } if((device->Flags&DEVICE_RUNNING)) return ALC_NO_ERROR; oldFreq = device->Frequency; oldChans = device->FmtChans; oldType = device->FmtType; TRACE("Format pre-setup: %s%s, %s%s, %uhz%s, %u update size x%d\n", DevFmtChannelsString(device->FmtChans), (device->Flags&DEVICE_CHANNELS_REQUEST)?" (requested)":"", DevFmtTypeString(device->FmtType), (device->Flags&DEVICE_SAMPLE_TYPE_REQUEST)?" (requested)":"", device->Frequency, (device->Flags&DEVICE_FREQUENCY_REQUEST)?" (requested)":"", device->UpdateSize, device->NumUpdates); if(ALCdevice_ResetPlayback(device) == ALC_FALSE) return ALC_INVALID_DEVICE; if(device->FmtChans != oldChans && (device->Flags&DEVICE_CHANNELS_REQUEST)) { ERR("Failed to set %s, got %s instead\n", DevFmtChannelsString(oldChans), DevFmtChannelsString(device->FmtChans)); device->Flags &= ~DEVICE_CHANNELS_REQUEST; } if(device->FmtType != oldType && (device->Flags&DEVICE_SAMPLE_TYPE_REQUEST)) { ERR("Failed to set %s, got %s instead\n", DevFmtTypeString(oldType), DevFmtTypeString(device->FmtType)); device->Flags &= ~DEVICE_SAMPLE_TYPE_REQUEST; } if(device->Frequency != oldFreq && (device->Flags&DEVICE_FREQUENCY_REQUEST)) { ERR("Failed to set %uhz, got %uhz instead\n", oldFreq, device->Frequency); device->Flags &= ~DEVICE_FREQUENCY_REQUEST; } TRACE("Format post-setup: %s, %s, %uhz, %u update size x%d\n", DevFmtChannelsString(device->FmtChans), DevFmtTypeString(device->FmtType), device->Frequency, device->UpdateSize, device->NumUpdates); aluInitPanning(device); for(i = 0;i < MaxChannels;i++) { device->ClickRemoval[i] = 0.0f; device->PendingClicks[i] = 0.0f; } device->Hrtf = NULL; if(device->Type != Loopback && GetConfigValueBool(NULL, "hrtf", AL_FALSE)) device->Hrtf = GetHrtf(device); TRACE("HRTF %s\n", device->Hrtf?"enabled":"disabled"); if(!device->Hrtf && device->Bs2bLevel > 0 && device->Bs2bLevel <= 6) { if(!device->Bs2b) { device->Bs2b = calloc(1, sizeof(*device->Bs2b)); bs2b_clear(device->Bs2b); } bs2b_set_srate(device->Bs2b, device->Frequency); bs2b_set_level(device->Bs2b, device->Bs2bLevel); TRACE("BS2B level %d\n", device->Bs2bLevel); } else { free(device->Bs2b); device->Bs2b = NULL; TRACE("BS2B disabled\n"); } device->Flags &= ~DEVICE_WIDE_STEREO; if(device->Type != Loopback && !device->Hrtf && GetConfigValueBool(NULL, "wide-stereo", AL_FALSE)) device->Flags |= DEVICE_WIDE_STEREO; oldMode = SetMixerFPUMode(); LockDevice(device); context = device->ContextList; while(context) { ALsizei pos; context->UpdateSources = AL_FALSE; LockUIntMapRead(&context->EffectSlotMap); for(pos = 0;pos < context->EffectSlotMap.size;pos++) { ALeffectslot *slot = context->EffectSlotMap.array[pos].value; if(ALeffectState_DeviceUpdate(slot->EffectState, device) == AL_FALSE) { UnlockUIntMapRead(&context->EffectSlotMap); UnlockDevice(device); RestoreFPUMode(oldMode); return ALC_INVALID_DEVICE; } slot->NeedsUpdate = AL_FALSE; ALeffectState_Update(slot->EffectState, device, slot); } UnlockUIntMapRead(&context->EffectSlotMap); LockUIntMapRead(&context->SourceMap); for(pos = 0;pos < context->SourceMap.size;pos++) { ALsource *source = context->SourceMap.array[pos].value; ALuint s = device->NumAuxSends; while(s < MAX_SENDS) { if(source->Send[s].Slot) DecrementRef(&source->Send[s].Slot->ref); source->Send[s].Slot = NULL; source->Send[s].Gain = 1.0f; source->Send[s].GainHF = 1.0f; s++; } source->NeedsUpdate = AL_FALSE; ALsource_Update(source, context); } UnlockUIntMapRead(&context->SourceMap); context = context->next; } if(device->DefaultSlot) { ALeffectslot *slot = device->DefaultSlot; if(ALeffectState_DeviceUpdate(slot->EffectState, device) == AL_FALSE) { UnlockDevice(device); RestoreFPUMode(oldMode); return ALC_INVALID_DEVICE; } slot->NeedsUpdate = AL_FALSE; ALeffectState_Update(slot->EffectState, device, slot); } UnlockDevice(device); RestoreFPUMode(oldMode); if(ALCdevice_StartPlayback(device) == ALC_FALSE) return ALC_INVALID_DEVICE; device->Flags |= DEVICE_RUNNING; return ALC_NO_ERROR; } /* FreeDevice * * Frees the device structure, and destroys any objects the app failed to * delete. Called once there's no more references on the device. */ static ALCvoid FreeDevice(ALCdevice *device) { TRACE("%p\n", device); if(device->DefaultSlot) { ALeffectState_Destroy(device->DefaultSlot->EffectState); device->DefaultSlot->EffectState = NULL; } if(device->BufferMap.size > 0) { WARN("(%p) Deleting %d Buffer(s)\n", device, device->BufferMap.size); ReleaseALBuffers(device); } ResetUIntMap(&device->BufferMap); if(device->EffectMap.size > 0) { WARN("(%p) Deleting %d Effect(s)\n", device, device->EffectMap.size); ReleaseALEffects(device); } ResetUIntMap(&device->EffectMap); if(device->FilterMap.size > 0) { WARN("(%p) Deleting %d Filter(s)\n", device, device->FilterMap.size); ReleaseALFilters(device); } ResetUIntMap(&device->FilterMap); free(device->Bs2b); device->Bs2b = NULL; free(device->DeviceName); device->DeviceName = NULL; DeleteCriticalSection(&device->Mutex); free(device); } void ALCdevice_IncRef(ALCdevice *device) { RefCount ref; ref = IncrementRef(&device->ref); TRACEREF("%p increasing refcount to %u\n", device, ref); } void ALCdevice_DecRef(ALCdevice *device) { RefCount ref; ref = DecrementRef(&device->ref); TRACEREF("%p decreasing refcount to %u\n", device, ref); if(ref == 0) FreeDevice(device); } /* VerifyDevice * * Checks if the device handle is valid, and increments its ref count if so. */ static ALCdevice *VerifyDevice(ALCdevice *device) { ALCdevice *tmpDevice; if(!device) return NULL; LockLists(); tmpDevice = DeviceList; while(tmpDevice && tmpDevice != device) tmpDevice = tmpDevice->next; if(tmpDevice) ALCdevice_IncRef(tmpDevice); UnlockLists(); return tmpDevice; } /* InitContext * * Initializes context fields */ static ALvoid InitContext(ALCcontext *Context) { ALint i, j; //Initialise listener Context->Listener.Gain = 1.0f; Context->Listener.MetersPerUnit = 1.0f; Context->Listener.Position[0] = 0.0f; Context->Listener.Position[1] = 0.0f; Context->Listener.Position[2] = 0.0f; Context->Listener.Velocity[0] = 0.0f; Context->Listener.Velocity[1] = 0.0f; Context->Listener.Velocity[2] = 0.0f; Context->Listener.Forward[0] = 0.0f; Context->Listener.Forward[1] = 0.0f; Context->Listener.Forward[2] = -1.0f; Context->Listener.Up[0] = 0.0f; Context->Listener.Up[1] = 1.0f; Context->Listener.Up[2] = 0.0f; for(i = 0;i < 4;i++) { for(j = 0;j < 4;j++) Context->Listener.Matrix[i][j] = ((i==j) ? 1.0f : 0.0f); } //Validate Context Context->LastError = AL_NO_ERROR; Context->UpdateSources = AL_FALSE; Context->ActiveSourceCount = 0; InitUIntMap(&Context->SourceMap, Context->Device->MaxNoOfSources); InitUIntMap(&Context->EffectSlotMap, Context->Device->AuxiliaryEffectSlotMax); //Set globals Context->DistanceModel = AL_INVERSE_DISTANCE_CLAMPED; Context->SourceDistanceModel = AL_FALSE; Context->DopplerFactor = 1.0f; Context->DopplerVelocity = 1.0f; Context->SpeedOfSound = SPEEDOFSOUNDMETRESPERSEC; Context->DeferUpdates = AL_FALSE; Context->ExtensionList = alExtList; } /* FreeContext * * Cleans up the context, and destroys any remaining objects the app failed to * delete. Called once there's no more references on the context. */ static ALCvoid FreeContext(ALCcontext *context) { TRACE("%p\n", context); if(context->SourceMap.size > 0) { ERR("(%p) Deleting %d Source(s)\n", context, context->SourceMap.size); ReleaseALSources(context); } ResetUIntMap(&context->SourceMap); if(context->EffectSlotMap.size > 0) { ERR("(%p) Deleting %d AuxiliaryEffectSlot(s)\n", context, context->EffectSlotMap.size); ReleaseALAuxiliaryEffectSlots(context); } ResetUIntMap(&context->EffectSlotMap); context->ActiveSourceCount = 0; free(context->ActiveSources); context->ActiveSources = NULL; context->MaxActiveSources = 0; context->ActiveEffectSlotCount = 0; free(context->ActiveEffectSlots); context->ActiveEffectSlots = NULL; context->MaxActiveEffectSlots = 0; ALCdevice_DecRef(context->Device); context->Device = NULL; //Invalidate context memset(context, 0, sizeof(ALCcontext)); free(context); } /* ReleaseContext * * Removes the context reference from the given device and removes it from * being current on the running thread or globally. */ static void ReleaseContext(ALCcontext *context, ALCdevice *device) { ALCcontext *volatile*tmp_ctx; if(pthread_getspecific(LocalContext) == context) { WARN("%p released while current on thread\n", context); pthread_setspecific(LocalContext, NULL); ALCcontext_DecRef(context); } if(CompExchangePtr((XchgPtr*)&GlobalContext, context, NULL)) ALCcontext_DecRef(context); LockDevice(device); tmp_ctx = &device->ContextList; while(*tmp_ctx) { if(CompExchangePtr((XchgPtr*)tmp_ctx, context, context->next)) break; tmp_ctx = &(*tmp_ctx)->next; } UnlockDevice(device); ALCcontext_DecRef(context); } void ALCcontext_IncRef(ALCcontext *context) { RefCount ref; ref = IncrementRef(&context->ref); TRACEREF("%p increasing refcount to %u\n", context, ref); } void ALCcontext_DecRef(ALCcontext *context) { RefCount ref; ref = DecrementRef(&context->ref); TRACEREF("%p decreasing refcount to %u\n", context, ref); if(ref == 0) FreeContext(context); } static void ReleaseThreadCtx(void *ptr) { WARN("%p current for thread being destroyed\n", ptr); ALCcontext_DecRef(ptr); } /* VerifyContext * * Checks that the given context is valid, and increments its reference count. */ static ALCcontext *VerifyContext(ALCcontext *context) { ALCdevice *dev; LockLists(); dev = DeviceList; while(dev) { ALCcontext *tmp_ctx = dev->ContextList; while(tmp_ctx) { if(tmp_ctx == context) { ALCcontext_IncRef(tmp_ctx); UnlockLists(); return tmp_ctx; } tmp_ctx = tmp_ctx->next; } dev = dev->next; } UnlockLists(); return NULL; } /* GetContextRef * * Returns the currently active context for this thread, and adds a reference * without locking it. */ ALCcontext *GetContextRef(void) { ALCcontext *context; context = pthread_getspecific(LocalContext); if(context) ALCcontext_IncRef(context); else { LockLists(); context = GlobalContext; if(context) ALCcontext_IncRef(context); UnlockLists(); } return context; } /************************************************ * Standard ALC functions ************************************************/ /* alcGetError * * Return last ALC generated error code for the given device */ ALC_API ALCenum ALC_APIENTRY alcGetError(ALCdevice *device) { ALCenum errorCode; if(VerifyDevice(device)) { errorCode = ExchangeInt(&device->LastError, ALC_NO_ERROR); ALCdevice_DecRef(device); } else errorCode = ExchangeInt(&LastNullDeviceError, ALC_NO_ERROR); return errorCode; } /* alcSuspendContext * * Not functional */ ALC_API ALCvoid ALC_APIENTRY alcSuspendContext(ALCcontext *Context) { (void)Context; } /* alcProcessContext * * Not functional */ ALC_API ALCvoid ALC_APIENTRY alcProcessContext(ALCcontext *Context) { (void)Context; } /* alcGetString * * Returns information about the device, and error strings */ ALC_API const ALCchar* ALC_APIENTRY alcGetString(ALCdevice *Device, ALCenum param) { const ALCchar *value = NULL; switch(param) { case ALC_NO_ERROR: value = alcNoError; break; case ALC_INVALID_ENUM: value = alcErrInvalidEnum; break; case ALC_INVALID_VALUE: value = alcErrInvalidValue; break; case ALC_INVALID_DEVICE: value = alcErrInvalidDevice; break; case ALC_INVALID_CONTEXT: value = alcErrInvalidContext; break; case ALC_OUT_OF_MEMORY: value = alcErrOutOfMemory; break; case ALC_DEVICE_SPECIFIER: value = alcDefaultName; break; case ALC_ALL_DEVICES_SPECIFIER: if(VerifyDevice(Device)) { value = Device->DeviceName; ALCdevice_DecRef(Device); } else { ProbeAllDevicesList(); value = alcAllDevicesList; } break; case ALC_CAPTURE_DEVICE_SPECIFIER: if(VerifyDevice(Device)) { value = Device->DeviceName; ALCdevice_DecRef(Device); } else { ProbeCaptureDeviceList(); value = alcCaptureDeviceList; } break; /* Default devices are always first in the list */ case ALC_DEFAULT_DEVICE_SPECIFIER: value = alcDefaultName; break; case ALC_DEFAULT_ALL_DEVICES_SPECIFIER: if(!alcAllDevicesList) ProbeAllDevicesList(); Device = VerifyDevice(Device); free(alcDefaultAllDevicesSpecifier); alcDefaultAllDevicesSpecifier = strdup(alcAllDevicesList ? alcAllDevicesList : ""); if(!alcDefaultAllDevicesSpecifier) alcSetError(Device, ALC_OUT_OF_MEMORY); value = alcDefaultAllDevicesSpecifier; if(Device) ALCdevice_DecRef(Device); break; case ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER: if(!alcCaptureDeviceList) ProbeCaptureDeviceList(); Device = VerifyDevice(Device); free(alcCaptureDefaultDeviceSpecifier); alcCaptureDefaultDeviceSpecifier = strdup(alcCaptureDeviceList ? alcCaptureDeviceList : ""); if(!alcCaptureDefaultDeviceSpecifier) alcSetError(Device, ALC_OUT_OF_MEMORY); value = alcCaptureDefaultDeviceSpecifier; if(Device) ALCdevice_DecRef(Device); break; case ALC_EXTENSIONS: if(!VerifyDevice(Device)) value = alcNoDeviceExtList; else { value = alcExtensionList; ALCdevice_DecRef(Device); } break; default: Device = VerifyDevice(Device); alcSetError(Device, ALC_INVALID_ENUM); if(Device) ALCdevice_DecRef(Device); break; } return value; } /* alcGetIntegerv * * Returns information about the device and the version of OpenAL */ ALC_API ALCvoid ALC_APIENTRY alcGetIntegerv(ALCdevice *device,ALCenum param,ALsizei size,ALCint *data) { device = VerifyDevice(device); if(size == 0 || data == NULL) { alcSetError(device, ALC_INVALID_VALUE); if(device) ALCdevice_DecRef(device); return; } if(!device) { switch(param) { case ALC_MAJOR_VERSION: *data = alcMajorVersion; break; case ALC_MINOR_VERSION: *data = alcMinorVersion; break; case ALC_ATTRIBUTES_SIZE: case ALC_ALL_ATTRIBUTES: case ALC_FREQUENCY: case ALC_REFRESH: case ALC_SYNC: case ALC_MONO_SOURCES: case ALC_STEREO_SOURCES: case ALC_CAPTURE_SAMPLES: case ALC_FORMAT_CHANNELS_SOFT: case ALC_FORMAT_TYPE_SOFT: alcSetError(NULL, ALC_INVALID_DEVICE); break; default: alcSetError(NULL, ALC_INVALID_ENUM); break; } } else if(device->Type == Capture) { switch(param) { case ALC_CAPTURE_SAMPLES: LockLists(); /* Re-validate the device since it may have been closed */ ALCdevice_DecRef(device); if((device=VerifyDevice(device)) != NULL) *data = ALCdevice_AvailableSamples(device); else alcSetError(NULL, ALC_INVALID_DEVICE); UnlockLists(); break; case ALC_CONNECTED: *data = device->Connected; break; default: alcSetError(device, ALC_INVALID_ENUM); break; } } else /* render device */ { switch(param) { case ALC_MAJOR_VERSION: *data = alcMajorVersion; break; case ALC_MINOR_VERSION: *data = alcMinorVersion; break; case ALC_EFX_MAJOR_VERSION: *data = alcEFXMajorVersion; break; case ALC_EFX_MINOR_VERSION: *data = alcEFXMinorVersion; break; case ALC_ATTRIBUTES_SIZE: *data = 13; break; case ALC_ALL_ATTRIBUTES: if(size < 13) alcSetError(device, ALC_INVALID_VALUE); else { int i = 0; data[i++] = ALC_FREQUENCY; data[i++] = device->Frequency; if(device->Type != Loopback) { data[i++] = ALC_REFRESH; data[i++] = device->Frequency / device->UpdateSize; data[i++] = ALC_SYNC; data[i++] = ALC_FALSE; } else { data[i++] = ALC_FORMAT_CHANNELS_SOFT; data[i++] = device->FmtChans; data[i++] = ALC_FORMAT_TYPE_SOFT; data[i++] = device->FmtType; } data[i++] = ALC_MONO_SOURCES; data[i++] = device->NumMonoSources; data[i++] = ALC_STEREO_SOURCES; data[i++] = device->NumStereoSources; data[i++] = ALC_MAX_AUXILIARY_SENDS; data[i++] = device->NumAuxSends; data[i++] = 0; } break; case ALC_FREQUENCY: *data = device->Frequency; break; case ALC_REFRESH: if(device->Type == Loopback) alcSetError(device, ALC_INVALID_DEVICE); else *data = device->Frequency / device->UpdateSize; break; case ALC_SYNC: if(device->Type == Loopback) alcSetError(device, ALC_INVALID_DEVICE); else *data = ALC_FALSE; break; case ALC_FORMAT_CHANNELS_SOFT: if(device->Type != Loopback) alcSetError(device, ALC_INVALID_DEVICE); else *data = device->FmtChans; break; case ALC_FORMAT_TYPE_SOFT: if(device->Type != Loopback) alcSetError(device, ALC_INVALID_DEVICE); else *data = device->FmtType; break; case ALC_MONO_SOURCES: *data = device->NumMonoSources; break; case ALC_STEREO_SOURCES: *data = device->NumStereoSources; break; case ALC_MAX_AUXILIARY_SENDS: *data = device->NumAuxSends; break; case ALC_CONNECTED: *data = device->Connected; break; default: alcSetError(device, ALC_INVALID_ENUM); break; } } if(device) ALCdevice_DecRef(device); } /* alcIsExtensionPresent * * Determines if there is support for a particular extension */ ALC_API ALCboolean ALC_APIENTRY alcIsExtensionPresent(ALCdevice *device, const ALCchar *extName) { ALCboolean bResult = ALC_FALSE; device = VerifyDevice(device); if(!extName) alcSetError(device, ALC_INVALID_VALUE); else { size_t len = strlen(extName); const char *ptr = (device ? alcExtensionList : alcNoDeviceExtList); while(ptr && *ptr) { if(strncasecmp(ptr, extName, len) == 0 && (ptr[len] == '\0' || isspace(ptr[len]))) { bResult = ALC_TRUE; break; } if((ptr=strchr(ptr, ' ')) != NULL) { do { ++ptr; } while(isspace(*ptr)); } } } if(device) ALCdevice_DecRef(device); return bResult; } /* alcGetProcAddress * * Retrieves the function address for a particular extension function */ ALC_API ALCvoid* ALC_APIENTRY alcGetProcAddress(ALCdevice *device, const ALCchar *funcName) { ALCvoid *ptr = NULL; if(!funcName) { device = VerifyDevice(device); alcSetError(device, ALC_INVALID_VALUE); if(device) ALCdevice_DecRef(device); } else { ALsizei i = 0; while(alcFunctions[i].funcName && strcmp(alcFunctions[i].funcName, funcName) != 0) i++; ptr = alcFunctions[i].address; } return ptr; } /* alcGetEnumValue * * Get the value for a particular ALC enumeration name */ ALC_API ALCenum ALC_APIENTRY alcGetEnumValue(ALCdevice *device, const ALCchar *enumName) { ALCenum val = 0; if(!enumName) { device = VerifyDevice(device); alcSetError(device, ALC_INVALID_VALUE); if(device) ALCdevice_DecRef(device); } else { ALsizei i = 0; while(enumeration[i].enumName && strcmp(enumeration[i].enumName, enumName) != 0) i++; val = enumeration[i].value; } return val; } /* alcCreateContext * * Create and attach a context to the given device. */ ALC_API ALCcontext* ALC_APIENTRY alcCreateContext(ALCdevice *device, const ALCint *attrList) { ALCcontext *ALContext; ALCenum err; LockLists(); if(!(device=VerifyDevice(device)) || device->Type == Capture || !device->Connected) { UnlockLists(); alcSetError(device, ALC_INVALID_DEVICE); if(device) ALCdevice_DecRef(device); return NULL; } device->LastError = ALC_NO_ERROR; if((err=UpdateDeviceParams(device, attrList)) != ALC_NO_ERROR) { UnlockLists(); alcSetError(device, err); if(err == ALC_INVALID_DEVICE) aluHandleDisconnect(device); ALCdevice_DecRef(device); return NULL; } ALContext = calloc(1, sizeof(ALCcontext)); if(ALContext) { ALContext->ref = 1; ALContext->MaxActiveSources = 256; ALContext->ActiveSources = malloc(sizeof(ALContext->ActiveSources[0]) * ALContext->MaxActiveSources); } if(!ALContext || !ALContext->ActiveSources) { if(!device->ContextList) { ALCdevice_StopPlayback(device); device->Flags &= ~DEVICE_RUNNING; } UnlockLists(); free(ALContext); ALContext = NULL; alcSetError(device, ALC_OUT_OF_MEMORY); ALCdevice_DecRef(device); return NULL; } ALContext->Device = device; ALCdevice_IncRef(device); InitContext(ALContext); do { ALContext->next = device->ContextList; } while(!CompExchangePtr((XchgPtr*)&device->ContextList, ALContext->next, ALContext)); UnlockLists(); ALCdevice_DecRef(device); TRACE("Created context %p\n", ALContext); return ALContext; } /* alcDestroyContext * * Remove a context from its device */ ALC_API ALCvoid ALC_APIENTRY alcDestroyContext(ALCcontext *context) { ALCdevice *Device; LockLists(); /* alcGetContextsDevice sets an error for invalid contexts */ Device = alcGetContextsDevice(context); if(Device) { ReleaseContext(context, Device); if(!Device->ContextList) { ALCdevice_StopPlayback(Device); Device->Flags &= ~DEVICE_RUNNING; } } UnlockLists(); } /* alcGetCurrentContext * * Returns the currently active context on the calling thread */ ALC_API ALCcontext* ALC_APIENTRY alcGetCurrentContext(void) { ALCcontext *Context; Context = pthread_getspecific(LocalContext); if(!Context) Context = GlobalContext; return Context; } /* alcGetThreadContext * * Returns the currently active thread-local context */ ALC_API ALCcontext* ALC_APIENTRY alcGetThreadContext(void) { ALCcontext *Context; Context = pthread_getspecific(LocalContext); return Context; } /* alcMakeContextCurrent * * Makes the given context the active process-wide context, and removes the * thread-local context for the calling thread. */ ALC_API ALCboolean ALC_APIENTRY alcMakeContextCurrent(ALCcontext *context) { /* context must be valid or NULL */ if(context && !(context=VerifyContext(context))) { alcSetError(NULL, ALC_INVALID_CONTEXT); return ALC_FALSE; } /* context's reference count is already incremented */ context = ExchangePtr((XchgPtr*)&GlobalContext, context); if(context) ALCcontext_DecRef(context); if((context=pthread_getspecific(LocalContext)) != NULL) { pthread_setspecific(LocalContext, NULL); ALCcontext_DecRef(context); } return ALC_TRUE; } /* alcSetThreadContext * * Makes the given context the active context for the current thread */ ALC_API ALCboolean ALC_APIENTRY alcSetThreadContext(ALCcontext *context) { ALCcontext *old; /* context must be valid or NULL */ if(context && !(context=VerifyContext(context))) { alcSetError(NULL, ALC_INVALID_CONTEXT); return ALC_FALSE; } /* context's reference count is already incremented */ old = pthread_getspecific(LocalContext); pthread_setspecific(LocalContext, context); if(old) ALCcontext_DecRef(old); return ALC_TRUE; } /* alcGetContextsDevice * * Returns the device that a particular context is attached to */ ALC_API ALCdevice* ALC_APIENTRY alcGetContextsDevice(ALCcontext *Context) { ALCdevice *Device; if(!(Context=VerifyContext(Context))) { alcSetError(NULL, ALC_INVALID_CONTEXT); return NULL; } Device = Context->Device; ALCcontext_DecRef(Context); return Device; } /* alcOpenDevice * * Opens the named device. */ ALC_API ALCdevice* ALC_APIENTRY alcOpenDevice(const ALCchar *deviceName) { const ALCchar *fmt; ALCdevice *device; ALCenum err; DO_INITCONFIG(); if(!PlaybackBackend.name) { alcSetError(NULL, ALC_INVALID_VALUE); return NULL; } if(deviceName && (!deviceName[0] || strcasecmp(deviceName, alcDefaultName) == 0 || strcasecmp(deviceName, "openal-soft") == 0)) deviceName = NULL; device = calloc(1, sizeof(ALCdevice)+sizeof(ALeffectslot)); if(!device) { alcSetError(NULL, ALC_OUT_OF_MEMORY); return NULL; } //Validate device device->Funcs = &PlaybackBackend.Funcs; device->ref = 1; device->Connected = ALC_TRUE; device->Type = Playback; InitializeCriticalSection(&device->Mutex); device->LastError = ALC_NO_ERROR; device->Flags = 0; device->Bs2b = NULL; device->Bs2bLevel = 0; device->DeviceName = NULL; device->ContextList = NULL; device->MaxNoOfSources = 256; device->AuxiliaryEffectSlotMax = 4; device->NumAuxSends = MAX_SENDS; InitUIntMap(&device->BufferMap, ~0); InitUIntMap(&device->EffectMap, ~0); InitUIntMap(&device->FilterMap, ~0); //Set output format device->FmtChans = DevFmtChannelsDefault; device->FmtType = DevFmtTypeDefault; device->Frequency = DEFAULT_OUTPUT_RATE; device->NumUpdates = 4; device->UpdateSize = 1024; if(ConfigValueStr(NULL, "channels", &fmt)) { static const struct { const char name[16]; enum DevFmtChannels chans; } chanlist[] = { { "mono", DevFmtMono }, { "stereo", DevFmtStereo }, { "quad", DevFmtQuad }, { "surround51", DevFmtX51 }, { "surround61", DevFmtX61 }, { "surround71", DevFmtX71 }, }; size_t i; for(i = 0;i < COUNTOF(chanlist);i++) { if(strcasecmp(chanlist[i].name, fmt) == 0) { device->FmtChans = chanlist[i].chans; device->Flags |= DEVICE_CHANNELS_REQUEST; break; } } if(i == COUNTOF(chanlist)) ERR("Unsupported channels: %s\n", fmt); } if(ConfigValueStr(NULL, "sample-type", &fmt)) { static const struct { const char name[16]; enum DevFmtType type; } typelist[] = { { "int8", DevFmtByte }, { "uint8", DevFmtUByte }, { "int16", DevFmtShort }, { "uint16", DevFmtUShort }, { "int32", DevFmtInt }, { "uint32", DevFmtUInt }, { "float32", DevFmtFloat }, }; size_t i; for(i = 0;i < COUNTOF(typelist);i++) { if(strcasecmp(typelist[i].name, fmt) == 0) { device->FmtType = typelist[i].type; device->Flags |= DEVICE_SAMPLE_TYPE_REQUEST; break; } } if(i == COUNTOF(typelist)) ERR("Unsupported sample-type: %s\n", fmt); } #define DEVICE_FORMAT_REQUEST (DEVICE_CHANNELS_REQUEST|DEVICE_SAMPLE_TYPE_REQUEST) if((device->Flags&DEVICE_FORMAT_REQUEST) != DEVICE_FORMAT_REQUEST && ConfigValueStr(NULL, "format", &fmt)) { static const struct { const char name[32]; enum DevFmtChannels channels; enum DevFmtType type; } formats[] = { { "AL_FORMAT_MONO32", DevFmtMono, DevFmtFloat }, { "AL_FORMAT_STEREO32", DevFmtStereo, DevFmtFloat }, { "AL_FORMAT_QUAD32", DevFmtQuad, DevFmtFloat }, { "AL_FORMAT_51CHN32", DevFmtX51, DevFmtFloat }, { "AL_FORMAT_61CHN32", DevFmtX61, DevFmtFloat }, { "AL_FORMAT_71CHN32", DevFmtX71, DevFmtFloat }, { "AL_FORMAT_MONO16", DevFmtMono, DevFmtShort }, { "AL_FORMAT_STEREO16", DevFmtStereo, DevFmtShort }, { "AL_FORMAT_QUAD16", DevFmtQuad, DevFmtShort }, { "AL_FORMAT_51CHN16", DevFmtX51, DevFmtShort }, { "AL_FORMAT_61CHN16", DevFmtX61, DevFmtShort }, { "AL_FORMAT_71CHN16", DevFmtX71, DevFmtShort }, { "AL_FORMAT_MONO8", DevFmtMono, DevFmtByte }, { "AL_FORMAT_STEREO8", DevFmtStereo, DevFmtByte }, { "AL_FORMAT_QUAD8", DevFmtQuad, DevFmtByte }, { "AL_FORMAT_51CHN8", DevFmtX51, DevFmtByte }, { "AL_FORMAT_61CHN8", DevFmtX61, DevFmtByte }, { "AL_FORMAT_71CHN8", DevFmtX71, DevFmtByte } }; size_t i; ERR("Option 'format' is deprecated, please use 'channels' and 'sample-type'\n"); for(i = 0;i < COUNTOF(formats);i++) { if(strcasecmp(fmt, formats[i].name) == 0) { if(!(device->Flags&DEVICE_CHANNELS_REQUEST)) device->FmtChans = formats[i].channels; if(!(device->Flags&DEVICE_SAMPLE_TYPE_REQUEST)) device->FmtType = formats[i].type; device->Flags |= DEVICE_FORMAT_REQUEST; break; } } if(i == COUNTOF(formats)) ERR("Unsupported format: %s\n", fmt); } #undef DEVICE_FORMAT_REQUEST if(ConfigValueUInt(NULL, "frequency", &device->Frequency)) { device->Flags |= DEVICE_FREQUENCY_REQUEST; if(device->Frequency < MIN_OUTPUT_RATE) ERR("%uhz request clamped to %uhz minimum\n", device->Frequency, MIN_OUTPUT_RATE); device->Frequency = maxu(device->Frequency, MIN_OUTPUT_RATE); } ConfigValueUInt(NULL, "periods", &device->NumUpdates); device->NumUpdates = clampu(device->NumUpdates, 2, 16); ConfigValueUInt(NULL, "period_size", &device->UpdateSize); device->UpdateSize = clampu(device->UpdateSize, 64, 8192); ConfigValueUInt(NULL, "sources", &device->MaxNoOfSources); if(device->MaxNoOfSources == 0) device->MaxNoOfSources = 256; ConfigValueUInt(NULL, "slots", &device->AuxiliaryEffectSlotMax); if(device->AuxiliaryEffectSlotMax == 0) device->AuxiliaryEffectSlotMax = 4; ConfigValueUInt(NULL, "sends", &device->NumAuxSends); if(device->NumAuxSends > MAX_SENDS) device->NumAuxSends = MAX_SENDS; ConfigValueInt(NULL, "cf_level", &device->Bs2bLevel); device->NumStereoSources = 1; device->NumMonoSources = device->MaxNoOfSources - device->NumStereoSources; // Find a playback device to open LockLists(); if((err=ALCdevice_OpenPlayback(device, deviceName)) != ALC_NO_ERROR) { UnlockLists(); DeleteCriticalSection(&device->Mutex); free(device); alcSetError(NULL, err); return NULL; } UnlockLists(); if(DefaultEffect.type != AL_EFFECT_NULL) { device->DefaultSlot = (ALeffectslot*)(device+1); if(InitEffectSlot(device->DefaultSlot) != AL_NO_ERROR) { device->DefaultSlot = NULL; ERR("Failed to initialize the default effect slot\n"); } else if(InitializeEffect(device, device->DefaultSlot, &DefaultEffect) != AL_NO_ERROR) { ALeffectState_Destroy(device->DefaultSlot->EffectState); device->DefaultSlot = NULL; ERR("Failed to initialize the default effect\n"); } } do { device->next = DeviceList; } while(!CompExchangePtr((XchgPtr*)&DeviceList, device->next, device)); TRACE("Created device %p, \"%s\"\n", device, device->DeviceName); return device; } /* alcCloseDevice * * Closes the given device. */ ALC_API ALCboolean ALC_APIENTRY alcCloseDevice(ALCdevice *Device) { ALCdevice *volatile*list; ALCcontext *ctx; LockLists(); list = &DeviceList; while(*list && *list != Device) list = &(*list)->next; if(!*list || (*list)->Type == Capture) { alcSetError(*list, ALC_INVALID_DEVICE); UnlockLists(); return ALC_FALSE; } *list = (*list)->next; UnlockLists(); while((ctx=Device->ContextList) != NULL) { WARN("Releasing context %p\n", ctx); ReleaseContext(ctx, Device); } if((Device->Flags&DEVICE_RUNNING)) ALCdevice_StopPlayback(Device); Device->Flags &= ~DEVICE_RUNNING; ALCdevice_ClosePlayback(Device); ALCdevice_DecRef(Device); return ALC_TRUE; } /************************************************ * ALC capture functions ************************************************/ ALC_API ALCdevice* ALC_APIENTRY alcCaptureOpenDevice(const ALCchar *deviceName, ALCuint frequency, ALCenum format, ALCsizei samples) { ALCdevice *device = NULL; ALCenum err; DO_INITCONFIG(); if(!CaptureBackend.name) { alcSetError(NULL, ALC_INVALID_VALUE); return NULL; } if(samples <= 0) { alcSetError(NULL, ALC_INVALID_VALUE); return NULL; } if(deviceName && (!deviceName[0] || strcasecmp(deviceName, alcDefaultName) == 0 || strcasecmp(deviceName, "openal-soft") == 0)) deviceName = NULL; device = calloc(1, sizeof(ALCdevice)); if(!device) { alcSetError(NULL, ALC_OUT_OF_MEMORY); return NULL; } //Validate device device->Funcs = &CaptureBackend.Funcs; device->ref = 1; device->Connected = ALC_TRUE; device->Type = Capture; InitializeCriticalSection(&device->Mutex); InitUIntMap(&device->BufferMap, ~0); InitUIntMap(&device->EffectMap, ~0); InitUIntMap(&device->FilterMap, ~0); device->DeviceName = NULL; device->Flags |= DEVICE_FREQUENCY_REQUEST; device->Frequency = frequency; device->Flags |= DEVICE_CHANNELS_REQUEST | DEVICE_SAMPLE_TYPE_REQUEST; if(DecomposeDevFormat(format, &device->FmtChans, &device->FmtType) == AL_FALSE) { DeleteCriticalSection(&device->Mutex); free(device); alcSetError(NULL, ALC_INVALID_ENUM); return NULL; } device->UpdateSize = samples; device->NumUpdates = 1; LockLists(); if((err=ALCdevice_OpenCapture(device, deviceName)) != ALC_NO_ERROR) { UnlockLists(); DeleteCriticalSection(&device->Mutex); free(device); alcSetError(NULL, err); return NULL; } UnlockLists(); do { device->next = DeviceList; } while(!CompExchangePtr((XchgPtr*)&DeviceList, device->next, device)); TRACE("Created device %p\n", device); return device; } ALC_API ALCboolean ALC_APIENTRY alcCaptureCloseDevice(ALCdevice *Device) { ALCdevice *volatile*list; LockLists(); list = &DeviceList; while(*list && *list != Device) list = &(*list)->next; if(!*list || (*list)->Type != Capture) { alcSetError(*list, ALC_INVALID_DEVICE); UnlockLists(); return ALC_FALSE; } *list = (*list)->next; UnlockLists(); ALCdevice_CloseCapture(Device); ALCdevice_DecRef(Device); return ALC_TRUE; } ALC_API void ALC_APIENTRY alcCaptureStart(ALCdevice *device) { LockLists(); if(!(device=VerifyDevice(device)) || device->Type != Capture) { UnlockLists(); alcSetError(device, ALC_INVALID_DEVICE); if(device) ALCdevice_DecRef(device); return; } if(device->Connected) { if(!(device->Flags&DEVICE_RUNNING)) ALCdevice_StartCapture(device); device->Flags |= DEVICE_RUNNING; } UnlockLists(); ALCdevice_DecRef(device); } ALC_API void ALC_APIENTRY alcCaptureStop(ALCdevice *device) { LockLists(); if(!(device=VerifyDevice(device)) || device->Type != Capture) { UnlockLists(); alcSetError(device, ALC_INVALID_DEVICE); if(device) ALCdevice_DecRef(device); return; } if((device->Flags&DEVICE_RUNNING)) ALCdevice_StopCapture(device); device->Flags &= ~DEVICE_RUNNING; UnlockLists(); ALCdevice_DecRef(device); } ALC_API void ALC_APIENTRY alcCaptureSamples(ALCdevice *device, ALCvoid *buffer, ALCsizei samples) { ALCenum err = ALC_INVALID_DEVICE; LockLists(); if((device=VerifyDevice(device)) != NULL && device->Type == Capture) { err = ALC_INVALID_VALUE; if(samples >= 0 && ALCdevice_AvailableSamples(device) >= (ALCuint)samples) err = ALCdevice_CaptureSamples(device, buffer, samples); } UnlockLists(); if(err != ALC_NO_ERROR) alcSetError(device, err); if(device) ALCdevice_DecRef(device); } /************************************************ * ALC loopback functions ************************************************/ /* alcLoopbackOpenDeviceSOFT * * Open a loopback device, for manual rendering. */ ALC_API ALCdevice* ALC_APIENTRY alcLoopbackOpenDeviceSOFT(const ALCchar *deviceName) { ALCdevice *device; DO_INITCONFIG(); /* Make sure the device name, if specified, is us. */ if(deviceName && strcmp(deviceName, alcDefaultName) != 0) { alcSetError(NULL, ALC_INVALID_VALUE); return NULL; } device = calloc(1, sizeof(ALCdevice)); if(!device) { alcSetError(NULL, ALC_OUT_OF_MEMORY); return NULL; } //Validate device device->Funcs = &BackendLoopback.Funcs; device->ref = 1; device->Connected = ALC_TRUE; device->Type = Loopback; InitializeCriticalSection(&device->Mutex); device->LastError = ALC_NO_ERROR; device->Flags = 0; device->Bs2b = NULL; device->Bs2bLevel = 0; device->DeviceName = NULL; device->ContextList = NULL; device->MaxNoOfSources = 256; device->AuxiliaryEffectSlotMax = 4; device->NumAuxSends = MAX_SENDS; InitUIntMap(&device->BufferMap, ~0); InitUIntMap(&device->EffectMap, ~0); InitUIntMap(&device->FilterMap, ~0); //Set output format device->NumUpdates = 0; device->UpdateSize = 0; device->Frequency = DEFAULT_OUTPUT_RATE; device->FmtChans = DevFmtChannelsDefault; device->FmtType = DevFmtTypeDefault; ConfigValueUInt(NULL, "sources", &device->MaxNoOfSources); if(device->MaxNoOfSources == 0) device->MaxNoOfSources = 256; ConfigValueUInt(NULL, "slots", &device->AuxiliaryEffectSlotMax); if(device->AuxiliaryEffectSlotMax == 0) device->AuxiliaryEffectSlotMax = 4; ConfigValueUInt(NULL, "sends", &device->NumAuxSends); if(device->NumAuxSends > MAX_SENDS) device->NumAuxSends = MAX_SENDS; device->NumStereoSources = 1; device->NumMonoSources = device->MaxNoOfSources - device->NumStereoSources; // Open the "backend" ALCdevice_OpenPlayback(device, "Loopback"); do { device->next = DeviceList; } while(!CompExchangePtr((XchgPtr*)&DeviceList, device->next, device)); TRACE("Created device %p\n", device); return device; } /* alcIsRenderFormatSupportedSOFT * * Determines if the loopback device supports the given format for rendering. */ ALC_API ALCboolean ALC_APIENTRY alcIsRenderFormatSupportedSOFT(ALCdevice *device, ALCsizei freq, ALCenum channels, ALCenum type) { ALCboolean ret = ALC_FALSE; if(!(device=VerifyDevice(device)) || device->Type != Loopback) alcSetError(device, ALC_INVALID_DEVICE); else if(freq <= 0) alcSetError(device, ALC_INVALID_VALUE); else { if(IsValidALCType(type) && BytesFromDevFmt(type) > 0 && IsValidALCChannels(channels) && ChannelsFromDevFmt(channels) > 0 && freq >= MIN_OUTPUT_RATE) ret = ALC_TRUE; } if(device) ALCdevice_DecRef(device); return ret; } /* alcRenderSamplesSOFT * * Renders some samples into a buffer, using the format last set by the * attributes given to alcCreateContext. */ ALC_API void ALC_APIENTRY alcRenderSamplesSOFT(ALCdevice *device, ALCvoid *buffer, ALCsizei samples) { if(!(device=VerifyDevice(device)) || device->Type != Loopback) alcSetError(device, ALC_INVALID_DEVICE); else if(samples < 0 || (samples > 0 && buffer == NULL)) alcSetError(device, ALC_INVALID_VALUE); else aluMixData(device, buffer, samples); if(device) ALCdevice_DecRef(device); }