/** * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * Or go to http://www.gnu.org/copyleft/lgpl.html */ #include "config.h" #include "version.h" #include #include #include #include #include #include #include "alMain.h" #include "alSource.h" #include "alListener.h" #include "alSource.h" #include "alBuffer.h" #include "alAuxEffectSlot.h" #include "alError.h" #include "mastering.h" #include "bformatdec.h" #include "alu.h" #include "alconfig.h" #include "ringbuffer.h" #include "fpu_modes.h" #include "cpu_caps.h" #include "compat.h" #include "threads.h" #include "alstring.h" #include "almalloc.h" #include "backends/base.h" /************************************************ * Backends ************************************************/ struct BackendInfo { const char *name; ALCbackendFactory* (*getFactory)(void); }; static struct BackendInfo BackendList[] = { #ifdef HAVE_JACK { "jack", ALCjackBackendFactory_getFactory }, #endif #ifdef HAVE_PULSEAUDIO { "pulse", ALCpulseBackendFactory_getFactory }, #endif #ifdef HAVE_ALSA { "alsa", ALCalsaBackendFactory_getFactory }, #endif #ifdef HAVE_COREAUDIO { "core", ALCcoreAudioBackendFactory_getFactory }, #endif #ifdef HAVE_OSS { "oss", ALCossBackendFactory_getFactory }, #endif #ifdef HAVE_SOLARIS { "solaris", ALCsolarisBackendFactory_getFactory }, #endif #ifdef HAVE_SNDIO { "sndio", ALCsndioBackendFactory_getFactory }, #endif #ifdef HAVE_QSA { "qsa", ALCqsaBackendFactory_getFactory }, #endif #ifdef HAVE_MMDEVAPI { "mmdevapi", ALCmmdevBackendFactory_getFactory }, #endif #ifdef HAVE_DSOUND { "dsound", ALCdsoundBackendFactory_getFactory }, #endif #ifdef HAVE_WINMM { "winmm", ALCwinmmBackendFactory_getFactory }, #endif #ifdef HAVE_PORTAUDIO { "port", ALCportBackendFactory_getFactory }, #endif #ifdef HAVE_OPENSL { "opensl", ALCopenslBackendFactory_getFactory }, #endif #ifdef HAVE_SDL2 { "sdl2", ALCsdl2BackendFactory_getFactory }, #endif { "null", ALCnullBackendFactory_getFactory }, #ifdef HAVE_WAVE { "wave", ALCwaveBackendFactory_getFactory }, #endif }; static ALsizei BackendListSize = COUNTOF(BackendList); #undef EmptyFuncs static struct BackendInfo PlaybackBackend; static struct BackendInfo CaptureBackend; /************************************************ * Functions, enums, and errors ************************************************/ #define DECL(x) { #x, (ALCvoid*)(x) } static const struct { const ALCchar *funcName; ALCvoid *address; } 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(alcDevicePauseSOFT), DECL(alcDeviceResumeSOFT), DECL(alcGetStringiSOFT), DECL(alcResetDeviceSOFT), DECL(alcGetInteger64vSOFT), 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(alDeferUpdatesSOFT), DECL(alProcessUpdatesSOFT), DECL(alSourcedSOFT), DECL(alSource3dSOFT), DECL(alSourcedvSOFT), DECL(alGetSourcedSOFT), DECL(alGetSource3dSOFT), DECL(alGetSourcedvSOFT), DECL(alSourcei64SOFT), DECL(alSource3i64SOFT), DECL(alSourcei64vSOFT), DECL(alGetSourcei64SOFT), DECL(alGetSource3i64SOFT), DECL(alGetSourcei64vSOFT), DECL(alGetStringiSOFT), DECL(alBufferStorageSOFT), DECL(alMapBufferSOFT), DECL(alUnmapBufferSOFT), DECL(alFlushMappedBufferSOFT), DECL(alEventControlSOFT), DECL(alEventCallbackSOFT), DECL(alGetPointerSOFT), DECL(alGetPointervSOFT), }; #undef DECL #define DECL(x) { #x, (x) } static const struct { const ALCchar *enumName; ALCenum value; } alcEnumerations[] = { 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_BFORMAT3D_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_HRTF_SOFT), DECL(ALC_DONT_CARE_SOFT), DECL(ALC_HRTF_STATUS_SOFT), DECL(ALC_HRTF_DISABLED_SOFT), DECL(ALC_HRTF_ENABLED_SOFT), DECL(ALC_HRTF_DENIED_SOFT), DECL(ALC_HRTF_REQUIRED_SOFT), DECL(ALC_HRTF_HEADPHONES_DETECTED_SOFT), DECL(ALC_HRTF_UNSUPPORTED_FORMAT_SOFT), DECL(ALC_NUM_HRTF_SPECIFIERS_SOFT), DECL(ALC_HRTF_SPECIFIER_SOFT), DECL(ALC_HRTF_ID_SOFT), DECL(ALC_AMBISONIC_LAYOUT_SOFT), DECL(ALC_AMBISONIC_SCALING_SOFT), DECL(ALC_AMBISONIC_ORDER_SOFT), DECL(ALC_ACN_SOFT), DECL(ALC_FUMA_SOFT), DECL(ALC_N3D_SOFT), DECL(ALC_SN3D_SOFT), DECL(ALC_OUTPUT_LIMITER_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_BYTE_OFFSET), DECL(AL_SOURCE_TYPE), DECL(AL_STATIC), DECL(AL_STREAMING), DECL(AL_UNDETERMINED), DECL(AL_METERS_PER_UNIT), DECL(AL_LOOP_POINTS_SOFT), 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_MONO_MSADPCM_SOFT), DECL(AL_FORMAT_STEREO_MSADPCM_SOFT), 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_FORMAT_BFORMAT2D_8), DECL(AL_FORMAT_BFORMAT2D_16), DECL(AL_FORMAT_BFORMAT2D_FLOAT32), DECL(AL_FORMAT_BFORMAT2D_MULAW), DECL(AL_FORMAT_BFORMAT3D_8), DECL(AL_FORMAT_BFORMAT3D_16), DECL(AL_FORMAT_BFORMAT3D_FLOAT32), DECL(AL_FORMAT_BFORMAT3D_MULAW), DECL(AL_FREQUENCY), DECL(AL_BITS), DECL(AL_CHANNELS), DECL(AL_SIZE), DECL(AL_UNPACK_BLOCK_ALIGNMENT_SOFT), DECL(AL_PACK_BLOCK_ALIGNMENT_SOFT), DECL(AL_SOURCE_RADIUS), DECL(AL_STEREO_ANGLES), 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_GAIN_LIMIT_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), DECL(AL_FILTER_HIGHPASS), DECL(AL_FILTER_BANDPASS), DECL(AL_LOWPASS_GAIN), DECL(AL_LOWPASS_GAINHF), DECL(AL_HIGHPASS_GAIN), DECL(AL_HIGHPASS_GAINLF), DECL(AL_BANDPASS_GAIN), DECL(AL_BANDPASS_GAINHF), DECL(AL_BANDPASS_GAINLF), DECL(AL_EFFECT_TYPE), DECL(AL_EFFECT_NULL), DECL(AL_EFFECT_REVERB), DECL(AL_EFFECT_EAXREVERB), DECL(AL_EFFECT_CHORUS), DECL(AL_EFFECT_DISTORTION), DECL(AL_EFFECT_ECHO), DECL(AL_EFFECT_FLANGER), #if 0 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), #endif DECL(AL_EFFECT_COMPRESSOR), DECL(AL_EFFECT_EQUALIZER), DECL(AL_EFFECT_DEDICATED_LOW_FREQUENCY_EFFECT), DECL(AL_EFFECT_DEDICATED_DIALOGUE), DECL(AL_EFFECTSLOT_EFFECT), DECL(AL_EFFECTSLOT_GAIN), DECL(AL_EFFECTSLOT_AUXILIARY_SEND_AUTO), DECL(AL_EFFECTSLOT_NULL), 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_CHORUS_WAVEFORM), DECL(AL_CHORUS_PHASE), DECL(AL_CHORUS_RATE), DECL(AL_CHORUS_DEPTH), DECL(AL_CHORUS_FEEDBACK), DECL(AL_CHORUS_DELAY), DECL(AL_DISTORTION_EDGE), DECL(AL_DISTORTION_GAIN), DECL(AL_DISTORTION_LOWPASS_CUTOFF), DECL(AL_DISTORTION_EQCENTER), DECL(AL_DISTORTION_EQBANDWIDTH), DECL(AL_ECHO_DELAY), DECL(AL_ECHO_LRDELAY), DECL(AL_ECHO_DAMPING), DECL(AL_ECHO_FEEDBACK), DECL(AL_ECHO_SPREAD), DECL(AL_FLANGER_WAVEFORM), DECL(AL_FLANGER_PHASE), DECL(AL_FLANGER_RATE), DECL(AL_FLANGER_DEPTH), DECL(AL_FLANGER_FEEDBACK), DECL(AL_FLANGER_DELAY), DECL(AL_RING_MODULATOR_FREQUENCY), DECL(AL_RING_MODULATOR_HIGHPASS_CUTOFF), DECL(AL_RING_MODULATOR_WAVEFORM), DECL(AL_COMPRESSOR_ONOFF), DECL(AL_EQUALIZER_LOW_GAIN), DECL(AL_EQUALIZER_LOW_CUTOFF), DECL(AL_EQUALIZER_MID1_GAIN), DECL(AL_EQUALIZER_MID1_CENTER), DECL(AL_EQUALIZER_MID1_WIDTH), DECL(AL_EQUALIZER_MID2_GAIN), DECL(AL_EQUALIZER_MID2_CENTER), DECL(AL_EQUALIZER_MID2_WIDTH), DECL(AL_EQUALIZER_HIGH_GAIN), DECL(AL_EQUALIZER_HIGH_CUTOFF), DECL(AL_DEDICATED_GAIN), DECL(AL_NUM_RESAMPLERS_SOFT), DECL(AL_DEFAULT_RESAMPLER_SOFT), DECL(AL_SOURCE_RESAMPLER_SOFT), DECL(AL_RESAMPLER_NAME_SOFT), DECL(AL_SOURCE_SPATIALIZE_SOFT), DECL(AL_AUTO_SOFT), DECL(AL_MAP_READ_BIT_SOFT), DECL(AL_MAP_WRITE_BIT_SOFT), DECL(AL_MAP_PERSISTENT_BIT_SOFT), DECL(AL_PRESERVE_DATA_BIT_SOFT), DECL(AL_EVENT_CALLBACK_FUNCTION_SOFT), DECL(AL_EVENT_CALLBACK_USER_PARAM_SOFT), DECL(AL_EVENT_TYPE_BUFFER_COMPLETED_SOFT), DECL(AL_EVENT_TYPE_SOURCE_STATE_CHANGED_SOFT), DECL(AL_EVENT_TYPE_ERROR_SOFT), DECL(AL_EVENT_TYPE_PERFORMANCE_SOFT), DECL(AL_EVENT_TYPE_DEPRECATED_SOFT), }; #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 al_string alcAllDevicesList; static al_string alcCaptureDeviceList; /* 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_BFORMAT " "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_BFORMAT " "AL_EXT_MULAW_MCFORMATS " "AL_EXT_OFFSET " "AL_EXT_source_distance_model " "AL_EXT_SOURCE_RADIUS " "AL_EXT_STEREO_ANGLES " "AL_LOKI_quadriphonic " "AL_SOFT_block_alignment " "AL_SOFT_deferred_updates " "AL_SOFT_direct_channels " "AL_SOFTX_events " "AL_SOFT_gain_clamp_ex " "AL_SOFT_loop_points " "AL_SOFTX_map_buffer " "AL_SOFT_MSADPCM " "AL_SOFT_source_latency " "AL_SOFT_source_length " "AL_SOFT_source_resampler " "AL_SOFT_source_spatialize"; static ATOMIC(ALCenum) LastNullDeviceError = ATOMIC_INIT_STATIC(ALC_NO_ERROR); /* Thread-local current context */ static altss_t LocalContext; /* Process-wide current context */ static ATOMIC(ALCcontext*) GlobalContext = ATOMIC_INIT_STATIC(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 alonce_flag alc_config_once = AL_ONCE_FLAG_INIT; /* Default effect that applies to sources that don't have an effect on send 0 */ static ALeffect DefaultEffect; /* Flag to specify if alcSuspendContext/alcProcessContext should defer/process * updates. */ static ALCboolean SuspendDefers = ALC_TRUE; /************************************************ * 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_device_clock ALC_SOFT_HRTF " "ALC_SOFT_loopback ALC_SOFT_output_limiter ALC_SOFT_pause_device"; static const ALCint alcMajorVersion = 1; static const ALCint alcMinorVersion = 1; static const ALCint alcEFXMajorVersion = 1; static const ALCint alcEFXMinorVersion = 0; /************************************************ * Device lists ************************************************/ static ATOMIC(ALCdevice*) DeviceList = ATOMIC_INIT_STATIC(NULL); static almtx_t ListLock; static inline void LockLists(void) { int ret = almtx_lock(&ListLock); assert(ret == althrd_success); } static inline void UnlockLists(void) { int ret = almtx_unlock(&ListLock); assert(ret == althrd_success); } /************************************************ * Library initialization ************************************************/ #if defined(_WIN32) static void alc_init(void); static void alc_deinit(void); static void alc_deinit_safe(void); #ifndef AL_LIBTYPE_STATIC BOOL APIENTRY DllMain(HINSTANCE hModule, DWORD reason, LPVOID lpReserved) { switch(reason) { 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); alc_init(); break; case DLL_THREAD_DETACH: break; case DLL_PROCESS_DETACH: if(!lpReserved) alc_deinit(); else alc_deinit_safe(); 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; int ret; LogFile = stderr; AL_STRING_INIT(alcAllDevicesList); AL_STRING_INIT(alcCaptureDeviceList); str = getenv("__ALSOFT_HALF_ANGLE_CONES"); if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1)) ConeScale *= 0.5f; str = getenv("__ALSOFT_REVERSE_Z"); if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1)) ZScale *= -1.0f; str = getenv("__ALSOFT_REVERB_IGNORES_SOUND_SPEED"); if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1)) OverrideReverbSpeedOfSound = AL_TRUE; ret = altss_create(&LocalContext, ReleaseThreadCtx); assert(ret == althrd_success); ret = almtx_init(&ListLock, almtx_recursive); assert(ret == althrd_success); } static void alc_initconfig(void) { const char *devs, *str; int capfilter; 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 = al_fopen(str, "wt"); if(logfile) LogFile = logfile; else ERR("Failed to open log file '%s'\n", str); } TRACE("Initializing library v%s-%s %s\n", ALSOFT_VERSION, ALSOFT_GIT_COMMIT_HASH, ALSOFT_GIT_BRANCH); { char buf[1024] = ""; int len = 0; if(BackendListSize > 0) len += snprintf(buf, sizeof(buf), "%s", BackendList[0].name); for(i = 1;i < BackendListSize;i++) len += snprintf(buf+len, sizeof(buf)-len, ", %s", BackendList[i].name); TRACE("Supported backends: %s\n", buf); } ReadALConfig(); str = getenv("__ALSOFT_SUSPEND_CONTEXT"); if(str && *str) { if(strcasecmp(str, "ignore") == 0) { SuspendDefers = ALC_FALSE; TRACE("Selected context suspend behavior, \"ignore\"\n"); } else ERR("Unhandled context suspend behavior setting: \"%s\"\n", str); } capfilter = 0; #if defined(HAVE_SSE4_1) capfilter |= CPU_CAP_SSE | CPU_CAP_SSE2 | CPU_CAP_SSE3 | CPU_CAP_SSE4_1; #elif defined(HAVE_SSE3) capfilter |= CPU_CAP_SSE | CPU_CAP_SSE2 | CPU_CAP_SSE3; #elif defined(HAVE_SSE2) capfilter |= CPU_CAP_SSE | CPU_CAP_SSE2; #elif defined(HAVE_SSE) capfilter |= CPU_CAP_SSE; #endif #ifdef HAVE_NEON capfilter |= CPU_CAP_NEON; #endif if(ConfigValueStr(NULL, NULL, "disable-cpu-exts", &str)) { if(strcasecmp(str, "all") == 0) capfilter = 0; else { size_t len; const char *next = str; do { str = next; while(isspace(str[0])) str++; next = strchr(str, ','); if(!str[0] || str[0] == ',') continue; len = (next ? ((size_t)(next-str)) : strlen(str)); while(len > 0 && isspace(str[len-1])) len--; if(len == 3 && strncasecmp(str, "sse", len) == 0) capfilter &= ~CPU_CAP_SSE; else if(len == 4 && strncasecmp(str, "sse2", len) == 0) capfilter &= ~CPU_CAP_SSE2; else if(len == 4 && strncasecmp(str, "sse3", len) == 0) capfilter &= ~CPU_CAP_SSE3; else if(len == 6 && strncasecmp(str, "sse4.1", len) == 0) capfilter &= ~CPU_CAP_SSE4_1; else if(len == 4 && strncasecmp(str, "neon", len) == 0) capfilter &= ~CPU_CAP_NEON; else WARN("Invalid CPU extension \"%s\"\n", str); } while(next++); } } FillCPUCaps(capfilter); #ifdef _WIN32 RTPrioLevel = 1; #else RTPrioLevel = 0; #endif ConfigValueInt(NULL, NULL, "rt-prio", &RTPrioLevel); aluInit(); aluInitMixer(); 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, 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, NULL, "trap-alc-error", TrapALCError); } if(ConfigValueFloat(NULL, "reverb", "boost", &valf)) ReverbBoost *= powf(10.0f, valf / 20.0f); if(((devs=getenv("ALSOFT_DRIVERS")) && devs[0]) || ConfigValueStr(NULL, NULL, "drivers", &devs)) { int n; size_t len; const char *next = devs; int endlist, delitem; i = 0; do { devs = next; while(isspace(devs[0])) devs++; 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)); while(len > 0 && isspace(devs[len-1])) len--; for(n = i;n < BackendListSize;n++) { if(len == strlen(BackendList[n].name) && strncmp(BackendList[n].name, devs, len) == 0) { if(delitem) { for(;n+1 < BackendListSize;n++) BackendList[n] = BackendList[n+1]; BackendListSize--; } else { struct BackendInfo Bkp = BackendList[n]; for(;n > i;n--) BackendList[n] = BackendList[n-1]; BackendList[n] = Bkp; i++; } break; } } } while(next++); if(endlist) BackendListSize = i; } for(i = 0;i < BackendListSize && (!PlaybackBackend.name || !CaptureBackend.name);i++) { ALCbackendFactory *factory = BackendList[i].getFactory(); if(!V0(factory,init)()) { WARN("Failed to initialize backend \"%s\"\n", BackendList[i].name); continue; } TRACE("Initialized backend \"%s\"\n", BackendList[i].name); if(!PlaybackBackend.name && V(factory,querySupport)(ALCbackend_Playback)) { PlaybackBackend = BackendList[i]; TRACE("Added \"%s\" for playback\n", PlaybackBackend.name); } if(!CaptureBackend.name && V(factory,querySupport)(ALCbackend_Capture)) { CaptureBackend = BackendList[i]; TRACE("Added \"%s\" for capture\n", CaptureBackend.name); } } { ALCbackendFactory *factory = ALCloopbackFactory_getFactory(); V0(factory,init)(); } if(!PlaybackBackend.name) WARN("No playback backend available!\n"); if(!CaptureBackend.name) WARN("No capture backend available!\n"); if(ConfigValueStr(NULL, 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;n < EFFECTLIST_SIZE;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, NULL, "default-reverb", &str)) LoadReverbPreset(str, &DefaultEffect); } #define DO_INITCONFIG() alcall_once(&alc_config_once, alc_initconfig) #ifdef __ANDROID__ #include static JavaVM *gJavaVM; static pthread_key_t gJVMThreadKey; static void CleanupJNIEnv(void* UNUSED(ptr)) { JCALL0(gJavaVM,DetachCurrentThread)(); } void *Android_GetJNIEnv(void) { if(!gJavaVM) { WARN("gJavaVM is NULL!\n"); return NULL; } /* http://developer.android.com/guide/practices/jni.html * * All threads are Linux threads, scheduled by the kernel. They're usually * started from managed code (using Thread.start), but they can also be * created elsewhere and then attached to the JavaVM. For example, a thread * started with pthread_create can be attached with the JNI * AttachCurrentThread or AttachCurrentThreadAsDaemon functions. Until a * thread is attached, it has no JNIEnv, and cannot make JNI calls. * Attaching a natively-created thread causes a java.lang.Thread object to * be constructed and added to the "main" ThreadGroup, making it visible to * the debugger. Calling AttachCurrentThread on an already-attached thread * is a no-op. */ JNIEnv *env = pthread_getspecific(gJVMThreadKey); if(!env) { int status = JCALL(gJavaVM,AttachCurrentThread)(&env, NULL); if(status < 0) { ERR("Failed to attach current thread\n"); return NULL; } pthread_setspecific(gJVMThreadKey, env); } return env; } /* Automatically called by JNI. */ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *jvm, void* UNUSED(reserved)) { void *env; int err; gJavaVM = jvm; if(JCALL(gJavaVM,GetEnv)(&env, JNI_VERSION_1_4) != JNI_OK) { ERR("Failed to get JNIEnv with JNI_VERSION_1_4\n"); return JNI_ERR; } /* Create gJVMThreadKey so we can keep track of the JNIEnv assigned to each * thread. The JNIEnv *must* be detached before the thread is destroyed. */ if((err=pthread_key_create(&gJVMThreadKey, CleanupJNIEnv)) != 0) ERR("pthread_key_create failed: %d\n", err); pthread_setspecific(gJVMThreadKey, env); return JNI_VERSION_1_4; } #endif /************************************************ * Library deinitialization ************************************************/ static void alc_cleanup(void) { ALCdevice *dev; AL_STRING_DEINIT(alcAllDevicesList); AL_STRING_DEINIT(alcCaptureDeviceList); free(alcDefaultAllDevicesSpecifier); alcDefaultAllDevicesSpecifier = NULL; free(alcCaptureDefaultDeviceSpecifier); alcCaptureDefaultDeviceSpecifier = NULL; if((dev=ATOMIC_EXCHANGE_PTR_SEQ(&DeviceList, NULL)) != NULL) { ALCuint num = 0; do { num++; dev = ATOMIC_LOAD(&dev->next, almemory_order_relaxed); } while(dev != NULL); ERR("%u device%s not closed\n", num, (num>1)?"s":""); } } static void alc_deinit_safe(void) { alc_cleanup(); FreeHrtfs(); FreeALConfig(); almtx_destroy(&ListLock); altss_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;i < BackendListSize;i++) { ALCbackendFactory *factory = BackendList[i].getFactory(); V0(factory,deinit)(); } { ALCbackendFactory *factory = ALCloopbackFactory_getFactory(); V0(factory,deinit)(); } alc_deinit_safe(); } /************************************************ * Device enumeration ************************************************/ static void ProbeDevices(al_string *list, struct BackendInfo *backendinfo, enum DevProbe type) { DO_INITCONFIG(); LockLists(); alstr_clear(list); if(backendinfo->getFactory) { ALCbackendFactory *factory = backendinfo->getFactory(); V(factory,probe)(type); } UnlockLists(); } static void ProbeAllDevicesList(void) { ProbeDevices(&alcAllDevicesList, &PlaybackBackend, ALL_DEVICE_PROBE); } static void ProbeCaptureDeviceList(void) { ProbeDevices(&alcCaptureDeviceList, &CaptureBackend, CAPTURE_DEVICE_PROBE); } static void AppendDevice(const ALCchar *name, al_string *devnames) { size_t len = strlen(name); if(len > 0) alstr_append_range(devnames, name, name+len+1); } void AppendAllDevicesList(const ALCchar *name) { AppendDevice(name, &alcAllDevicesList); } void AppendCaptureDeviceList(const ALCchar *name) { AppendDevice(name, &alcCaptureDeviceList); } /************************************************ * 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 DevFmtX51Rear: return "5.1 Surround (Rear)"; case DevFmtX61: return "6.1 Surround"; case DevFmtX71: return "7.1 Surround"; case DevFmtAmbi3D: return "Ambisonic 3D"; } return "(unknown channels)"; } extern inline ALsizei FrameSizeFromDevFmt(enum DevFmtChannels chans, enum DevFmtType type, ALsizei ambiorder); ALsizei 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; } ALsizei ChannelsFromDevFmt(enum DevFmtChannels chans, ALsizei ambiorder) { switch(chans) { case DevFmtMono: return 1; case DevFmtStereo: return 2; case DevFmtQuad: return 4; case DevFmtX51: return 6; case DevFmtX51Rear: return 6; case DevFmtX61: return 7; case DevFmtX71: return 8; case DevFmtAmbi3D: return (ambiorder >= 3) ? 16 : (ambiorder == 2) ? 9 : (ambiorder == 1) ? 4 : 1; } 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: case ALC_BFORMAT3D_SOFT: return ALC_TRUE; } return ALC_FALSE; } static ALCboolean IsValidAmbiLayout(ALCenum layout) { switch(layout) { case ALC_ACN_SOFT: case ALC_FUMA_SOFT: return ALC_TRUE; } return ALC_FALSE; } static ALCboolean IsValidAmbiScaling(ALCenum scaling) { switch(scaling) { case ALC_N3D_SOFT: case ALC_SN3D_SOFT: case ALC_FUMA_SOFT: return ALC_TRUE; } return ALC_FALSE; } /************************************************ * Miscellaneous ALC helpers ************************************************/ /* SetDefaultWFXChannelOrder * * Sets the default channel order used by WaveFormatEx. */ void SetDefaultWFXChannelOrder(ALCdevice *device) { ALsizei i; for(i = 0;i < MAX_OUTPUT_CHANNELS;i++) device->RealOut.ChannelName[i] = InvalidChannel; switch(device->FmtChans) { case DevFmtMono: device->RealOut.ChannelName[0] = FrontCenter; break; case DevFmtStereo: device->RealOut.ChannelName[0] = FrontLeft; device->RealOut.ChannelName[1] = FrontRight; break; case DevFmtQuad: device->RealOut.ChannelName[0] = FrontLeft; device->RealOut.ChannelName[1] = FrontRight; device->RealOut.ChannelName[2] = BackLeft; device->RealOut.ChannelName[3] = BackRight; break; case DevFmtX51: device->RealOut.ChannelName[0] = FrontLeft; device->RealOut.ChannelName[1] = FrontRight; device->RealOut.ChannelName[2] = FrontCenter; device->RealOut.ChannelName[3] = LFE; device->RealOut.ChannelName[4] = SideLeft; device->RealOut.ChannelName[5] = SideRight; break; case DevFmtX51Rear: device->RealOut.ChannelName[0] = FrontLeft; device->RealOut.ChannelName[1] = FrontRight; device->RealOut.ChannelName[2] = FrontCenter; device->RealOut.ChannelName[3] = LFE; device->RealOut.ChannelName[4] = BackLeft; device->RealOut.ChannelName[5] = BackRight; break; case DevFmtX61: device->RealOut.ChannelName[0] = FrontLeft; device->RealOut.ChannelName[1] = FrontRight; device->RealOut.ChannelName[2] = FrontCenter; device->RealOut.ChannelName[3] = LFE; device->RealOut.ChannelName[4] = BackCenter; device->RealOut.ChannelName[5] = SideLeft; device->RealOut.ChannelName[6] = SideRight; break; case DevFmtX71: device->RealOut.ChannelName[0] = FrontLeft; device->RealOut.ChannelName[1] = FrontRight; device->RealOut.ChannelName[2] = FrontCenter; device->RealOut.ChannelName[3] = LFE; device->RealOut.ChannelName[4] = BackLeft; device->RealOut.ChannelName[5] = BackRight; device->RealOut.ChannelName[6] = SideLeft; device->RealOut.ChannelName[7] = SideRight; break; case DevFmtAmbi3D: device->RealOut.ChannelName[0] = Aux0; if(device->AmbiOrder > 0) { device->RealOut.ChannelName[1] = Aux1; device->RealOut.ChannelName[2] = Aux2; device->RealOut.ChannelName[3] = Aux3; } if(device->AmbiOrder > 1) { device->RealOut.ChannelName[4] = Aux4; device->RealOut.ChannelName[5] = Aux5; device->RealOut.ChannelName[6] = Aux6; device->RealOut.ChannelName[7] = Aux7; device->RealOut.ChannelName[8] = Aux8; } if(device->AmbiOrder > 2) { device->RealOut.ChannelName[9] = Aux9; device->RealOut.ChannelName[10] = Aux10; device->RealOut.ChannelName[11] = Aux11; device->RealOut.ChannelName[12] = Aux12; device->RealOut.ChannelName[13] = Aux13; device->RealOut.ChannelName[14] = Aux14; device->RealOut.ChannelName[15] = Aux15; } break; } } /* SetDefaultChannelOrder * * Sets the default channel order used by most non-WaveFormatEx-based APIs. */ void SetDefaultChannelOrder(ALCdevice *device) { ALsizei i; for(i = 0;i < MAX_OUTPUT_CHANNELS;i++) device->RealOut.ChannelName[i] = InvalidChannel; switch(device->FmtChans) { case DevFmtX51Rear: device->RealOut.ChannelName[0] = FrontLeft; device->RealOut.ChannelName[1] = FrontRight; device->RealOut.ChannelName[2] = BackLeft; device->RealOut.ChannelName[3] = BackRight; device->RealOut.ChannelName[4] = FrontCenter; device->RealOut.ChannelName[5] = LFE; return; case DevFmtX71: device->RealOut.ChannelName[0] = FrontLeft; device->RealOut.ChannelName[1] = FrontRight; device->RealOut.ChannelName[2] = BackLeft; device->RealOut.ChannelName[3] = BackRight; device->RealOut.ChannelName[4] = FrontCenter; device->RealOut.ChannelName[5] = LFE; device->RealOut.ChannelName[6] = SideLeft; device->RealOut.ChannelName[7] = SideRight; return; /* Same as WFX order */ case DevFmtMono: case DevFmtStereo: case DevFmtQuad: case DevFmtX51: case DevFmtX61: case DevFmtAmbi3D: SetDefaultWFXChannelOrder(device); break; } } extern inline ALint GetChannelIndex(const enum Channel names[MAX_OUTPUT_CHANNELS], enum Channel chan); extern inline ALint GetChannelIdxByName(const RealMixParams *real, enum Channel chan); /* ALCcontext_DeferUpdates * * Defers/suspends updates for the given context's listener and sources. This * does *NOT* stop mixing, but rather prevents certain property changes from * taking effect. */ void ALCcontext_DeferUpdates(ALCcontext *context) { ATOMIC_STORE_SEQ(&context->DeferUpdates, AL_TRUE); } /* ALCcontext_ProcessUpdates * * Resumes update processing after being deferred. */ void ALCcontext_ProcessUpdates(ALCcontext *context) { almtx_lock(&context->PropLock); if(ATOMIC_EXCHANGE_SEQ(&context->DeferUpdates, AL_FALSE)) { /* Tell the mixer to stop applying updates, then wait for any active * updating to finish, before providing updates. */ ATOMIC_STORE_SEQ(&context->HoldUpdates, AL_TRUE); while((ATOMIC_LOAD(&context->UpdateCount, almemory_order_acquire)&1) != 0) althrd_yield(); if(!ATOMIC_FLAG_TEST_AND_SET(&context->PropsClean, almemory_order_acq_rel)) UpdateContextProps(context); if(!ATOMIC_FLAG_TEST_AND_SET(&context->Listener->PropsClean, almemory_order_acq_rel)) UpdateListenerProps(context); UpdateAllEffectSlotProps(context); UpdateAllSourceProps(context); /* Now with all updates declared, let the mixer continue applying them * so they all happen at once. */ ATOMIC_STORE_SEQ(&context->HoldUpdates, AL_FALSE); } almtx_unlock(&context->PropLock); } /* alcSetError * * Stores the latest ALC device error */ static void alcSetError(ALCdevice *device, ALCenum errorCode) { WARN("Error generated on device %p, code 0x%04x\n", device, 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) ATOMIC_STORE_SEQ(&device->LastError, errorCode); else ATOMIC_STORE_SEQ(&LastNullDeviceError, errorCode); } struct Compressor *CreateDeviceLimiter(const ALCdevice *device) { return CompressorInit(0.0f, 0.0f, AL_FALSE, AL_TRUE, 0.0f, 0.0f, 0.5f, 2.0f, 0.0f, -3.0f, 3.0f, device->Frequency); } /* UpdateClockBase * * Updates the device's base clock time with however many samples have been * done. This is used so frequency changes on the device don't cause the time * to jump forward or back. Must not be called while the device is running/ * mixing. */ static inline void UpdateClockBase(ALCdevice *device) { IncrementRef(&device->MixCount); device->ClockBase += device->SamplesDone * DEVICE_CLOCK_RES / device->Frequency; device->SamplesDone = 0; IncrementRef(&device->MixCount); } /* 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) { enum HrtfRequestMode hrtf_userreq = Hrtf_Default; enum HrtfRequestMode hrtf_appreq = Hrtf_Default; ALCenum gainLimiter = device->Limiter ? ALC_TRUE : ALC_FALSE; const ALsizei old_sends = device->NumAuxSends; ALsizei new_sends = device->NumAuxSends; enum DevFmtChannels oldChans; enum DevFmtType oldType; ALboolean update_failed; ALCsizei hrtf_id = -1; ALCcontext *context; ALCuint oldFreq; size_t size; ALCsizei i; int val; // Check for attributes if(device->Type == Loopback) { ALCsizei numMono, numStereo, numSends; ALCenum alayout = AL_NONE; ALCenum ascale = AL_NONE; ALCenum schans = AL_NONE; ALCenum stype = AL_NONE; ALCsizei attrIdx = 0; ALCsizei aorder = 0; ALCuint freq = 0; if(!attrList) { WARN("Missing attributes for loopback device\n"); return ALC_INVALID_VALUE; } numMono = device->NumMonoSources; numStereo = device->NumStereoSources; numSends = old_sends; #define TRACE_ATTR(a, v) TRACE("Loopback %s = %d\n", #a, v) while(attrList[attrIdx]) { switch(attrList[attrIdx]) { case ALC_FORMAT_CHANNELS_SOFT: schans = attrList[attrIdx + 1]; TRACE_ATTR(ALC_FORMAT_CHANNELS_SOFT, schans); if(!IsValidALCChannels(schans)) return ALC_INVALID_VALUE; break; case ALC_FORMAT_TYPE_SOFT: stype = attrList[attrIdx + 1]; TRACE_ATTR(ALC_FORMAT_TYPE_SOFT, stype); if(!IsValidALCType(stype)) return ALC_INVALID_VALUE; break; case ALC_FREQUENCY: freq = attrList[attrIdx + 1]; TRACE_ATTR(ALC_FREQUENCY, freq); if(freq < MIN_OUTPUT_RATE) return ALC_INVALID_VALUE; break; case ALC_AMBISONIC_LAYOUT_SOFT: alayout = attrList[attrIdx + 1]; TRACE_ATTR(ALC_AMBISONIC_LAYOUT_SOFT, alayout); if(!IsValidAmbiLayout(alayout)) return ALC_INVALID_VALUE; break; case ALC_AMBISONIC_SCALING_SOFT: ascale = attrList[attrIdx + 1]; TRACE_ATTR(ALC_AMBISONIC_SCALING_SOFT, ascale); if(!IsValidAmbiScaling(ascale)) return ALC_INVALID_VALUE; break; case ALC_AMBISONIC_ORDER_SOFT: aorder = attrList[attrIdx + 1]; TRACE_ATTR(ALC_AMBISONIC_ORDER_SOFT, aorder); if(aorder < 1 || aorder > MAX_AMBI_ORDER) return ALC_INVALID_VALUE; break; case ALC_MONO_SOURCES: numMono = attrList[attrIdx + 1]; TRACE_ATTR(ALC_MONO_SOURCES, numMono); numMono = maxi(numMono, 0); break; case ALC_STEREO_SOURCES: numStereo = attrList[attrIdx + 1]; TRACE_ATTR(ALC_STEREO_SOURCES, numStereo); numStereo = maxi(numStereo, 0); break; case ALC_MAX_AUXILIARY_SENDS: numSends = attrList[attrIdx + 1]; TRACE_ATTR(ALC_MAX_AUXILIARY_SENDS, numSends); numSends = clampi(numSends, 0, MAX_SENDS); break; case ALC_HRTF_SOFT: TRACE_ATTR(ALC_HRTF_SOFT, attrList[attrIdx + 1]); if(attrList[attrIdx + 1] == ALC_FALSE) hrtf_appreq = Hrtf_Disable; else if(attrList[attrIdx + 1] == ALC_TRUE) hrtf_appreq = Hrtf_Enable; else hrtf_appreq = Hrtf_Default; break; case ALC_HRTF_ID_SOFT: hrtf_id = attrList[attrIdx + 1]; TRACE_ATTR(ALC_HRTF_ID_SOFT, hrtf_id); break; case ALC_OUTPUT_LIMITER_SOFT: gainLimiter = attrList[attrIdx + 1]; TRACE_ATTR(ALC_OUTPUT_LIMITER_SOFT, gainLimiter); break; default: TRACE("Loopback 0x%04X = %d (0x%x)\n", attrList[attrIdx], attrList[attrIdx + 1], attrList[attrIdx + 1]); break; } attrIdx += 2; } #undef TRACE_ATTR if(!schans || !stype || !freq) { WARN("Missing format for loopback device\n"); return ALC_INVALID_VALUE; } if(schans == ALC_BFORMAT3D_SOFT && (!alayout || !ascale || !aorder)) { WARN("Missing ambisonic info for loopback device\n"); return ALC_INVALID_VALUE; } if((device->Flags&DEVICE_RUNNING)) V0(device->Backend,stop)(); device->Flags &= ~DEVICE_RUNNING; UpdateClockBase(device); device->Frequency = freq; device->FmtChans = schans; device->FmtType = stype; if(schans == ALC_BFORMAT3D_SOFT) { device->AmbiOrder = aorder; device->AmbiLayout = alayout; device->AmbiScale = ascale; } if(numMono > INT_MAX-numStereo) numMono = INT_MAX-numStereo; numMono += numStereo; if(ConfigValueInt(NULL, NULL, "sources", &numMono)) { if(numMono <= 0) numMono = 256; } else numMono = maxi(numMono, 256); numStereo = mini(numStereo, numMono); numMono -= numStereo; device->SourcesMax = numMono + numStereo; device->NumMonoSources = numMono; device->NumStereoSources = numStereo; if(ConfigValueInt(NULL, NULL, "sends", &new_sends)) new_sends = mini(numSends, clampi(new_sends, 0, MAX_SENDS)); else new_sends = numSends; } else if(attrList && attrList[0]) { ALCsizei numMono, numStereo, numSends; ALCsizei attrIdx = 0; ALCuint freq; /* If a context is already running on the device, stop playback so the * device attributes can be updated. */ if((device->Flags&DEVICE_RUNNING)) V0(device->Backend,stop)(); device->Flags &= ~DEVICE_RUNNING; UpdateClockBase(device); freq = device->Frequency; numMono = device->NumMonoSources; numStereo = device->NumStereoSources; numSends = old_sends; #define TRACE_ATTR(a, v) TRACE("%s = %d\n", #a, v) while(attrList[attrIdx]) { switch(attrList[attrIdx]) { case ALC_FREQUENCY: freq = attrList[attrIdx + 1]; TRACE_ATTR(ALC_FREQUENCY, freq); device->Flags |= DEVICE_FREQUENCY_REQUEST; break; case ALC_MONO_SOURCES: numMono = attrList[attrIdx + 1]; TRACE_ATTR(ALC_MONO_SOURCES, numMono); numMono = maxi(numMono, 0); break; case ALC_STEREO_SOURCES: numStereo = attrList[attrIdx + 1]; TRACE_ATTR(ALC_STEREO_SOURCES, numStereo); numStereo = maxi(numStereo, 0); break; case ALC_MAX_AUXILIARY_SENDS: numSends = attrList[attrIdx + 1]; TRACE_ATTR(ALC_MAX_AUXILIARY_SENDS, numSends); numSends = clampi(numSends, 0, MAX_SENDS); break; case ALC_HRTF_SOFT: TRACE_ATTR(ALC_HRTF_SOFT, attrList[attrIdx + 1]); if(attrList[attrIdx + 1] == ALC_FALSE) hrtf_appreq = Hrtf_Disable; else if(attrList[attrIdx + 1] == ALC_TRUE) hrtf_appreq = Hrtf_Enable; else hrtf_appreq = Hrtf_Default; break; case ALC_HRTF_ID_SOFT: hrtf_id = attrList[attrIdx + 1]; TRACE_ATTR(ALC_HRTF_ID_SOFT, hrtf_id); break; case ALC_OUTPUT_LIMITER_SOFT: gainLimiter = attrList[attrIdx + 1]; TRACE_ATTR(ALC_OUTPUT_LIMITER_SOFT, gainLimiter); break; default: TRACE("0x%04X = %d (0x%x)\n", attrList[attrIdx], attrList[attrIdx + 1], attrList[attrIdx + 1]); break; } attrIdx += 2; } #undef TRACE_ATTR ConfigValueUInt(alstr_get_cstr(device->DeviceName), NULL, "frequency", &freq); freq = maxu(freq, MIN_OUTPUT_RATE); device->UpdateSize = (ALuint64)device->UpdateSize * freq / device->Frequency; /* SSE and Neon do best with the update size being a multiple of 4 */ if((CPUCapFlags&(CPU_CAP_SSE|CPU_CAP_NEON)) != 0) device->UpdateSize = (device->UpdateSize+3)&~3; device->Frequency = freq; if(numMono > INT_MAX-numStereo) numMono = INT_MAX-numStereo; numMono += numStereo; if(ConfigValueInt(alstr_get_cstr(device->DeviceName), NULL, "sources", &numMono)) { if(numMono <= 0) numMono = 256; } else numMono = maxi(numMono, 256); numStereo = mini(numStereo, numMono); numMono -= numStereo; device->SourcesMax = numMono + numStereo; device->NumMonoSources = numMono; device->NumStereoSources = numStereo; if(ConfigValueInt(alstr_get_cstr(device->DeviceName), NULL, "sends", &new_sends)) new_sends = mini(numSends, clampi(new_sends, 0, MAX_SENDS)); else new_sends = numSends; } if((device->Flags&DEVICE_RUNNING)) return ALC_NO_ERROR; al_free(device->Uhj_Encoder); device->Uhj_Encoder = NULL; al_free(device->Bs2b); device->Bs2b = NULL; al_free(device->ChannelDelay[0].Buffer); for(i = 0;i < MAX_OUTPUT_CHANNELS;i++) { device->ChannelDelay[i].Length = 0; device->ChannelDelay[i].Buffer = NULL; } al_free(device->Dry.Buffer); device->Dry.Buffer = NULL; device->Dry.NumChannels = 0; device->FOAOut.Buffer = NULL; device->FOAOut.NumChannels = 0; device->RealOut.Buffer = NULL; device->RealOut.NumChannels = 0; UpdateClockBase(device); device->DitherSeed = DITHER_RNG_SEED; /************************************************************************* * Update device format request if HRTF is requested */ device->HrtfStatus = ALC_HRTF_DISABLED_SOFT; if(device->Type != Loopback) { const char *hrtf; if(ConfigValueStr(alstr_get_cstr(device->DeviceName), NULL, "hrtf", &hrtf)) { if(strcasecmp(hrtf, "true") == 0) hrtf_userreq = Hrtf_Enable; else if(strcasecmp(hrtf, "false") == 0) hrtf_userreq = Hrtf_Disable; else if(strcasecmp(hrtf, "auto") != 0) ERR("Unexpected hrtf value: %s\n", hrtf); } if(hrtf_userreq == Hrtf_Enable || (hrtf_userreq != Hrtf_Disable && hrtf_appreq == Hrtf_Enable)) { struct Hrtf *hrtf = NULL; if(VECTOR_SIZE(device->HrtfList) == 0) { VECTOR_DEINIT(device->HrtfList); device->HrtfList = EnumerateHrtf(device->DeviceName); } if(VECTOR_SIZE(device->HrtfList) > 0) { if(hrtf_id >= 0 && (size_t)hrtf_id < VECTOR_SIZE(device->HrtfList)) hrtf = GetLoadedHrtf(VECTOR_ELEM(device->HrtfList, hrtf_id).hrtf); else hrtf = GetLoadedHrtf(VECTOR_ELEM(device->HrtfList, 0).hrtf); } if(hrtf) { device->FmtChans = DevFmtStereo; device->Frequency = hrtf->sampleRate; device->Flags |= DEVICE_CHANNELS_REQUEST | DEVICE_FREQUENCY_REQUEST; if(device->HrtfHandle) Hrtf_DecRef(device->HrtfHandle); device->HrtfHandle = hrtf; } else { hrtf_userreq = Hrtf_Default; hrtf_appreq = Hrtf_Disable; device->HrtfStatus = ALC_HRTF_UNSUPPORTED_FORMAT_SOFT; } } } oldFreq = device->Frequency; oldChans = device->FmtChans; oldType = device->FmtType; TRACE("Pre-reset: %s%s, %s%s, %s%uhz, %u update size x%d\n", (device->Flags&DEVICE_CHANNELS_REQUEST)?"*":"", DevFmtChannelsString(device->FmtChans), (device->Flags&DEVICE_SAMPLE_TYPE_REQUEST)?"*":"", DevFmtTypeString(device->FmtType), (device->Flags&DEVICE_FREQUENCY_REQUEST)?"*":"", device->Frequency, device->UpdateSize, device->NumUpdates ); if(V0(device->Backend,reset)() == 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; } if((device->UpdateSize&3) != 0) { if((CPUCapFlags&CPU_CAP_SSE)) WARN("SSE performs best with multiple of 4 update sizes (%u)\n", device->UpdateSize); if((CPUCapFlags&CPU_CAP_NEON)) WARN("NEON performs best with multiple of 4 update sizes (%u)\n", device->UpdateSize); } TRACE("Post-reset: %s, %s, %uhz, %u update size x%d\n", DevFmtChannelsString(device->FmtChans), DevFmtTypeString(device->FmtType), device->Frequency, device->UpdateSize, device->NumUpdates ); aluInitRenderer(device, hrtf_id, hrtf_appreq, hrtf_userreq); TRACE("Channel config, Dry: %d, FOA: %d, Real: %d\n", device->Dry.NumChannels, device->FOAOut.NumChannels, device->RealOut.NumChannels); /* Allocate extra channels for any post-filter output. */ size = (device->Dry.NumChannels + device->FOAOut.NumChannels + device->RealOut.NumChannels)*sizeof(device->Dry.Buffer[0]); TRACE("Allocating "SZFMT" channels, "SZFMT" bytes\n", size/sizeof(device->Dry.Buffer[0]), size); device->Dry.Buffer = al_calloc(16, size); if(!device->Dry.Buffer) { ERR("Failed to allocate "SZFMT" bytes for mix buffer\n", size); return ALC_INVALID_DEVICE; } if(device->RealOut.NumChannels != 0) device->RealOut.Buffer = device->Dry.Buffer + device->Dry.NumChannels + device->FOAOut.NumChannels; else { device->RealOut.Buffer = device->Dry.Buffer; device->RealOut.NumChannels = device->Dry.NumChannels; } if(device->FOAOut.NumChannels != 0) device->FOAOut.Buffer = device->Dry.Buffer + device->Dry.NumChannels; else { device->FOAOut.Buffer = device->Dry.Buffer; device->FOAOut.NumChannels = device->Dry.NumChannels; } device->NumAuxSends = new_sends; TRACE("Max sources: %d (%d + %d), effect slots: %d, sends: %d\n", device->SourcesMax, device->NumMonoSources, device->NumStereoSources, device->AuxiliaryEffectSlotMax, device->NumAuxSends); device->DitherDepth = 0.0f; if(GetConfigValueBool(alstr_get_cstr(device->DeviceName), NULL, "dither", 1)) { ALint depth = 0; ConfigValueInt(alstr_get_cstr(device->DeviceName), NULL, "dither-depth", &depth); if(depth <= 0) { switch(device->FmtType) { case DevFmtByte: case DevFmtUByte: depth = 8; break; case DevFmtShort: case DevFmtUShort: depth = 16; break; case DevFmtInt: case DevFmtUInt: case DevFmtFloat: break; } } else if(depth > 24) depth = 24; device->DitherDepth = (depth > 0) ? powf(2.0f, (ALfloat)(depth-1)) : 0.0f; } if(!(device->DitherDepth > 0.0f)) TRACE("Dithering disabled\n"); else TRACE("Dithering enabled (%g-bit, %g)\n", log2f(device->DitherDepth)+1.0f, device->DitherDepth); if(ConfigValueBool(alstr_get_cstr(device->DeviceName), NULL, "output-limiter", &val)) gainLimiter = val ? ALC_TRUE : ALC_FALSE; /* Valid values for gainLimiter are ALC_DONT_CARE_SOFT, ALC_TRUE, and * ALC_FALSE. We default to on, so ALC_DONT_CARE_SOFT is the same as * ALC_TRUE. */ if(gainLimiter != ALC_FALSE) { if(!device->Limiter || device->Frequency != GetCompressorSampleRate(device->Limiter)) { al_free(device->Limiter); device->Limiter = CreateDeviceLimiter(device); } } else { al_free(device->Limiter); device->Limiter = NULL; } TRACE("Output limiter %s\n", device->Limiter ? "enabled" : "disabled"); aluSelectPostProcess(device); /* Need to delay returning failure until replacement Send arrays have been * allocated with the appropriate size. */ update_failed = AL_FALSE; START_MIXER_MODE(); context = ATOMIC_LOAD_SEQ(&device->ContextList); while(context) { SourceSubList *sublist, *subend; struct ALvoiceProps *vprops; ALsizei pos; if(context->DefaultSlot) { ALeffectslot *slot = context->DefaultSlot; ALeffectState *state = slot->Effect.State; state->OutBuffer = device->Dry.Buffer; state->OutChannels = device->Dry.NumChannels; if(V(state,deviceUpdate)(device) == AL_FALSE) update_failed = AL_TRUE; else UpdateEffectSlotProps(slot, context); } almtx_lock(&context->PropLock); almtx_lock(&context->EffectSlotLock); for(pos = 0;pos < (ALsizei)VECTOR_SIZE(context->EffectSlotList);pos++) { ALeffectslot *slot = VECTOR_ELEM(context->EffectSlotList, pos); ALeffectState *state = slot->Effect.State; state->OutBuffer = device->Dry.Buffer; state->OutChannels = device->Dry.NumChannels; if(V(state,deviceUpdate)(device) == AL_FALSE) update_failed = AL_TRUE; else UpdateEffectSlotProps(slot, context); } almtx_unlock(&context->EffectSlotLock); almtx_lock(&context->SourceLock); sublist = VECTOR_BEGIN(context->SourceList); subend = VECTOR_END(context->SourceList); for(;sublist != subend;++sublist) { ALuint64 usemask = ~sublist->FreeMask; while(usemask) { ALsizei idx = CTZ64(usemask); ALsource *source = sublist->Sources + idx; usemask &= ~(U64(1) << idx); if(old_sends != device->NumAuxSends) { ALvoid *sends = al_calloc(16, device->NumAuxSends*sizeof(source->Send[0])); ALsizei s; memcpy(sends, source->Send, mini(device->NumAuxSends, old_sends)*sizeof(source->Send[0]) ); for(s = device->NumAuxSends;s < old_sends;s++) { if(source->Send[s].Slot) DecrementRef(&source->Send[s].Slot->ref); source->Send[s].Slot = NULL; } al_free(source->Send); source->Send = sends; for(s = old_sends;s < device->NumAuxSends;s++) { source->Send[s].Slot = NULL; source->Send[s].Gain = 1.0f; source->Send[s].GainHF = 1.0f; source->Send[s].HFReference = LOWPASSFREQREF; source->Send[s].GainLF = 1.0f; source->Send[s].LFReference = HIGHPASSFREQREF; } } ATOMIC_FLAG_CLEAR(&source->PropsClean, almemory_order_release); } } /* Clear any pre-existing voice property structs, in case the number of * auxiliary sends is changing. Active sources will have updates * respecified in UpdateAllSourceProps. */ vprops = ATOMIC_EXCHANGE_PTR(&context->FreeVoiceProps, NULL, almemory_order_acq_rel); while(vprops) { struct ALvoiceProps *next = ATOMIC_LOAD(&vprops->next, almemory_order_relaxed); al_free(vprops); vprops = next; } AllocateVoices(context, context->MaxVoices, old_sends); for(pos = 0;pos < context->VoiceCount;pos++) { ALvoice *voice = context->Voices[pos]; al_free(ATOMIC_EXCHANGE_PTR(&voice->Update, NULL, almemory_order_acq_rel)); if(ATOMIC_LOAD(&voice->Source, almemory_order_acquire) == NULL) continue; if(device->AvgSpeakerDist > 0.0f) { /* Reinitialize the NFC filters for new parameters. */ ALfloat w1 = SPEEDOFSOUNDMETRESPERSEC / (device->AvgSpeakerDist * device->Frequency); for(i = 0;i < voice->NumChannels;i++) NfcFilterCreate(&voice->Direct.Params[i].NFCtrlFilter, 0.0f, w1); } } almtx_unlock(&context->SourceLock); ATOMIC_FLAG_TEST_AND_SET(&context->PropsClean, almemory_order_release); UpdateContextProps(context); ATOMIC_FLAG_TEST_AND_SET(&context->Listener->PropsClean, almemory_order_release); UpdateListenerProps(context); UpdateAllSourceProps(context); almtx_unlock(&context->PropLock); context = ATOMIC_LOAD(&context->next, almemory_order_relaxed); } END_MIXER_MODE(); if(update_failed) return ALC_INVALID_DEVICE; if(!(device->Flags&DEVICE_PAUSED)) { if(V0(device->Backend,start)() == ALC_FALSE) return ALC_INVALID_DEVICE; device->Flags |= DEVICE_RUNNING; } return ALC_NO_ERROR; } static void InitDevice(ALCdevice *device, enum DeviceType type) { ALsizei i; InitRef(&device->ref, 1); ATOMIC_INIT(&device->Connected, ALC_TRUE); device->Type = type; ATOMIC_INIT(&device->LastError, ALC_NO_ERROR); device->Flags = 0; device->Render_Mode = NormalRender; device->AvgSpeakerDist = 0.0f; ATOMIC_INIT(&device->ContextList, NULL); device->ClockBase = 0; device->SamplesDone = 0; device->SourcesMax = 0; device->AuxiliaryEffectSlotMax = 0; device->NumAuxSends = 0; device->Dry.Buffer = NULL; device->Dry.NumChannels = 0; device->FOAOut.Buffer = NULL; device->FOAOut.NumChannels = 0; device->RealOut.Buffer = NULL; device->RealOut.NumChannels = 0; AL_STRING_INIT(device->DeviceName); for(i = 0;i < MAX_OUTPUT_CHANNELS;i++) { device->ChannelDelay[i].Gain = 1.0f; device->ChannelDelay[i].Length = 0; device->ChannelDelay[i].Buffer = NULL; } AL_STRING_INIT(device->HrtfName); VECTOR_INIT(device->HrtfList); device->HrtfHandle = NULL; device->Hrtf = NULL; device->Bs2b = NULL; device->Uhj_Encoder = NULL; device->AmbiDecoder = NULL; device->AmbiUp = NULL; device->Stablizer = NULL; device->Limiter = NULL; VECTOR_INIT(device->BufferList); almtx_init(&device->BufferLock, almtx_plain); VECTOR_INIT(device->EffectList); almtx_init(&device->EffectLock, almtx_plain); VECTOR_INIT(device->FilterList); almtx_init(&device->FilterLock, almtx_plain); almtx_init(&device->BackendLock, almtx_plain); device->Backend = NULL; ATOMIC_INIT(&device->next, NULL); } /* 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) { ALsizei i; TRACE("%p\n", device); if(device->Backend) DELETE_OBJ(device->Backend); device->Backend = NULL; almtx_destroy(&device->BackendLock); ReleaseALBuffers(device); #define FREE_BUFFERSUBLIST(x) al_free((x)->Buffers) VECTOR_FOR_EACH(BufferSubList, device->BufferList, FREE_BUFFERSUBLIST); #undef FREE_BUFFERSUBLIST VECTOR_DEINIT(device->BufferList); almtx_destroy(&device->BufferLock); ReleaseALEffects(device); #define FREE_EFFECTSUBLIST(x) al_free((x)->Effects) VECTOR_FOR_EACH(EffectSubList, device->EffectList, FREE_EFFECTSUBLIST); #undef FREE_EFFECTSUBLIST VECTOR_DEINIT(device->EffectList); almtx_destroy(&device->EffectLock); ReleaseALFilters(device); #define FREE_FILTERSUBLIST(x) al_free((x)->Filters) VECTOR_FOR_EACH(FilterSubList, device->FilterList, FREE_FILTERSUBLIST); #undef FREE_FILTERSUBLIST VECTOR_DEINIT(device->FilterList); almtx_destroy(&device->FilterLock); AL_STRING_DEINIT(device->HrtfName); FreeHrtfList(&device->HrtfList); if(device->HrtfHandle) Hrtf_DecRef(device->HrtfHandle); device->HrtfHandle = NULL; al_free(device->Hrtf); device->Hrtf = NULL; al_free(device->Bs2b); device->Bs2b = NULL; al_free(device->Uhj_Encoder); device->Uhj_Encoder = NULL; bformatdec_free(&device->AmbiDecoder); ambiup_free(&device->AmbiUp); al_free(device->Stablizer); device->Stablizer = NULL; al_free(device->Limiter); device->Limiter = NULL; al_free(device->ChannelDelay[0].Buffer); for(i = 0;i < MAX_OUTPUT_CHANNELS;i++) { device->ChannelDelay[i].Gain = 1.0f; device->ChannelDelay[i].Length = 0; device->ChannelDelay[i].Buffer = NULL; } AL_STRING_DEINIT(device->DeviceName); al_free(device->Dry.Buffer); device->Dry.Buffer = NULL; device->Dry.NumChannels = 0; device->FOAOut.Buffer = NULL; device->FOAOut.NumChannels = 0; device->RealOut.Buffer = NULL; device->RealOut.NumChannels = 0; al_free(device); } void ALCdevice_IncRef(ALCdevice *device) { uint ref; ref = IncrementRef(&device->ref); TRACEREF("%p increasing refcount to %u\n", device, ref); } void ALCdevice_DecRef(ALCdevice *device) { uint 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 ALCboolean VerifyDevice(ALCdevice **device) { ALCdevice *tmpDevice; LockLists(); tmpDevice = ATOMIC_LOAD_SEQ(&DeviceList); while(tmpDevice) { if(tmpDevice == *device) { ALCdevice_IncRef(tmpDevice); UnlockLists(); return ALC_TRUE; } tmpDevice = ATOMIC_LOAD(&tmpDevice->next, almemory_order_relaxed); } UnlockLists(); *device = NULL; return ALC_FALSE; } /* InitContext * * Initializes context fields */ static ALvoid InitContext(ALCcontext *Context) { ALlistener *listener = Context->Listener; struct ALeffectslotArray *auxslots; //Initialise listener listener->Gain = 1.0f; listener->Position[0] = 0.0f; listener->Position[1] = 0.0f; listener->Position[2] = 0.0f; listener->Velocity[0] = 0.0f; listener->Velocity[1] = 0.0f; listener->Velocity[2] = 0.0f; listener->Forward[0] = 0.0f; listener->Forward[1] = 0.0f; listener->Forward[2] = -1.0f; listener->Up[0] = 0.0f; listener->Up[1] = 1.0f; listener->Up[2] = 0.0f; ATOMIC_FLAG_TEST_AND_SET(&listener->PropsClean, almemory_order_relaxed); ATOMIC_INIT(&listener->Update, NULL); //Validate Context InitRef(&Context->UpdateCount, 0); ATOMIC_INIT(&Context->HoldUpdates, AL_FALSE); Context->GainBoost = 1.0f; almtx_init(&Context->PropLock, almtx_plain); ATOMIC_INIT(&Context->LastError, AL_NO_ERROR); VECTOR_INIT(Context->SourceList); Context->NumSources = 0; almtx_init(&Context->SourceLock, almtx_plain); VECTOR_INIT(Context->EffectSlotList); almtx_init(&Context->EffectSlotLock, almtx_plain); if(Context->DefaultSlot) { auxslots = al_calloc(DEF_ALIGN, FAM_SIZE(struct ALeffectslotArray, slot, 1)); auxslots->count = 1; auxslots->slot[0] = Context->DefaultSlot; } else { auxslots = al_calloc(DEF_ALIGN, sizeof(struct ALeffectslotArray)); auxslots->count = 0; } ATOMIC_INIT(&Context->ActiveAuxSlots, auxslots); //Set globals Context->DistanceModel = DefaultDistanceModel; Context->SourceDistanceModel = AL_FALSE; Context->DopplerFactor = 1.0f; Context->DopplerVelocity = 1.0f; Context->SpeedOfSound = SPEEDOFSOUNDMETRESPERSEC; Context->MetersPerUnit = AL_DEFAULT_METERS_PER_UNIT; ATOMIC_FLAG_TEST_AND_SET(&Context->PropsClean, almemory_order_relaxed); ATOMIC_INIT(&Context->DeferUpdates, AL_FALSE); almtx_init(&Context->EventThrdLock, almtx_plain); alsem_init(&Context->EventSem, 0); Context->AsyncEvents = NULL; ATOMIC_INIT(&Context->EnabledEvts, 0); almtx_init(&Context->EventCbLock, almtx_plain); Context->EventCb = NULL; Context->EventParam = NULL; ATOMIC_INIT(&Context->Update, NULL); ATOMIC_INIT(&Context->FreeContextProps, NULL); ATOMIC_INIT(&Context->FreeListenerProps, NULL); ATOMIC_INIT(&Context->FreeVoiceProps, NULL); ATOMIC_INIT(&Context->FreeEffectslotProps, NULL); Context->ExtensionList = alExtList; listener->Params.Matrix = IdentityMatrixf; aluVectorSet(&listener->Params.Velocity, 0.0f, 0.0f, 0.0f, 0.0f); listener->Params.Gain = listener->Gain; listener->Params.MetersPerUnit = Context->MetersPerUnit; listener->Params.DopplerFactor = Context->DopplerFactor; listener->Params.SpeedOfSound = Context->SpeedOfSound * Context->DopplerVelocity; listener->Params.ReverbSpeedOfSound = listener->Params.SpeedOfSound * listener->Params.MetersPerUnit; listener->Params.SourceDistanceModel = Context->SourceDistanceModel; listener->Params.DistanceModel = Context->DistanceModel; } /* 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 void FreeContext(ALCcontext *context) { ALlistener *listener = context->Listener; struct ALeffectslotArray *auxslots; struct ALeffectslotProps *eprops; struct ALlistenerProps *lprops; struct ALcontextProps *cprops; struct ALvoiceProps *vprops; size_t count; ALsizei i; TRACE("%p\n", context); if((cprops=ATOMIC_LOAD(&context->Update, almemory_order_acquire)) != NULL) { TRACE("Freed unapplied context update %p\n", cprops); al_free(cprops); } count = 0; cprops = ATOMIC_LOAD(&context->FreeContextProps, almemory_order_acquire); while(cprops) { struct ALcontextProps *next = ATOMIC_LOAD(&cprops->next, almemory_order_acquire); al_free(cprops); cprops = next; ++count; } TRACE("Freed "SZFMT" context property object%s\n", count, (count==1)?"":"s"); if(context->DefaultSlot) { DeinitEffectSlot(context->DefaultSlot); context->DefaultSlot = NULL; } auxslots = ATOMIC_EXCHANGE_PTR(&context->ActiveAuxSlots, NULL, almemory_order_relaxed); al_free(auxslots); ReleaseALSources(context); #define FREE_SOURCESUBLIST(x) al_free((x)->Sources) VECTOR_FOR_EACH(SourceSubList, context->SourceList, FREE_SOURCESUBLIST); #undef FREE_SOURCESUBLIST VECTOR_DEINIT(context->SourceList); context->NumSources = 0; almtx_destroy(&context->SourceLock); count = 0; eprops = ATOMIC_LOAD(&context->FreeEffectslotProps, almemory_order_relaxed); while(eprops) { struct ALeffectslotProps *next = ATOMIC_LOAD(&eprops->next, almemory_order_relaxed); if(eprops->State) ALeffectState_DecRef(eprops->State); al_free(eprops); eprops = next; ++count; } TRACE("Freed "SZFMT" AuxiliaryEffectSlot property object%s\n", count, (count==1)?"":"s"); ReleaseALAuxiliaryEffectSlots(context); #define FREE_EFFECTSLOTPTR(x) al_free(*(x)) VECTOR_FOR_EACH(ALeffectslotPtr, context->EffectSlotList, FREE_EFFECTSLOTPTR); #undef FREE_EFFECTSLOTPTR VECTOR_DEINIT(context->EffectSlotList); almtx_destroy(&context->EffectSlotLock); count = 0; vprops = ATOMIC_LOAD(&context->FreeVoiceProps, almemory_order_relaxed); while(vprops) { struct ALvoiceProps *next = ATOMIC_LOAD(&vprops->next, almemory_order_relaxed); al_free(vprops); vprops = next; ++count; } TRACE("Freed "SZFMT" voice property object%s\n", count, (count==1)?"":"s"); for(i = 0;i < context->VoiceCount;i++) DeinitVoice(context->Voices[i]); al_free(context->Voices); context->Voices = NULL; context->VoiceCount = 0; context->MaxVoices = 0; if((lprops=ATOMIC_LOAD(&listener->Update, almemory_order_acquire)) != NULL) { TRACE("Freed unapplied listener update %p\n", lprops); al_free(lprops); } count = 0; lprops = ATOMIC_LOAD(&context->FreeListenerProps, almemory_order_acquire); while(lprops) { struct ALlistenerProps *next = ATOMIC_LOAD(&lprops->next, almemory_order_acquire); al_free(lprops); lprops = next; ++count; } TRACE("Freed "SZFMT" listener property object%s\n", count, (count==1)?"":"s"); if(ATOMIC_EXCHANGE(&context->EnabledEvts, 0, almemory_order_acq_rel)) { static const AsyncEvent kill_evt = { 0 }; while(ll_ringbuffer_write(context->AsyncEvents, (const char*)&kill_evt, 1) == 0) althrd_yield(); alsem_post(&context->EventSem); althrd_join(context->EventThread, NULL); } almtx_destroy(&context->EventCbLock); almtx_destroy(&context->EventThrdLock); alsem_destroy(&context->EventSem); ll_ringbuffer_free(context->AsyncEvents); context->AsyncEvents = NULL; almtx_destroy(&context->PropLock); ALCdevice_DecRef(context->Device); context->Device = NULL; //Invalidate context memset(context, 0, sizeof(ALCcontext)); al_free(context); } /* ReleaseContext * * Removes the context reference from the given device and removes it from * being current on the running thread or globally. Returns true if other * contexts still exist on the device. */ static bool ReleaseContext(ALCcontext *context, ALCdevice *device) { ALCcontext *origctx, *newhead; bool ret = true; if(altss_get(LocalContext) == context) { WARN("%p released while current on thread\n", context); altss_set(LocalContext, NULL); ALCcontext_DecRef(context); } origctx = context; if(ATOMIC_COMPARE_EXCHANGE_PTR_STRONG_SEQ(&GlobalContext, &origctx, NULL)) ALCcontext_DecRef(context); V0(device->Backend,lock)(); origctx = context; newhead = ATOMIC_LOAD(&context->next, almemory_order_relaxed); if(!ATOMIC_COMPARE_EXCHANGE_PTR_STRONG_SEQ(&device->ContextList, &origctx, newhead)) { ALCcontext *list; do { /* origctx is what the desired context failed to match. Try * swapping out the next one in the list. */ list = origctx; origctx = context; } while(!ATOMIC_COMPARE_EXCHANGE_PTR_STRONG_SEQ(&list->next, &origctx, newhead)); } else ret = !!newhead; V0(device->Backend,unlock)(); ALCcontext_DecRef(context); return ret; } static void ALCcontext_IncRef(ALCcontext *context) { uint ref = IncrementRef(&context->ref); TRACEREF("%p increasing refcount to %u\n", context, ref); } void ALCcontext_DecRef(ALCcontext *context) { uint ref = DecrementRef(&context->ref); TRACEREF("%p decreasing refcount to %u\n", context, ref); if(ref == 0) FreeContext(context); } static void ReleaseThreadCtx(void *ptr) { ALCcontext *context = ptr; uint ref = DecrementRef(&context->ref); TRACEREF("%p decreasing refcount to %u\n", context, ref); ERR("Context %p current for thread being destroyed, possible leak!\n", context); } /* VerifyContext * * Checks that the given context is valid, and increments its reference count. */ static ALCboolean VerifyContext(ALCcontext **context) { ALCdevice *dev; LockLists(); dev = ATOMIC_LOAD_SEQ(&DeviceList); while(dev) { ALCcontext *ctx = ATOMIC_LOAD(&dev->ContextList, almemory_order_acquire); while(ctx) { if(ctx == *context) { ALCcontext_IncRef(ctx); UnlockLists(); return ALC_TRUE; } ctx = ATOMIC_LOAD(&ctx->next, almemory_order_relaxed); } dev = ATOMIC_LOAD(&dev->next, almemory_order_relaxed); } UnlockLists(); *context = NULL; return ALC_FALSE; } /* GetContextRef * * Returns the currently active context for this thread, and adds a reference * without locking it. */ ALCcontext *GetContextRef(void) { ALCcontext *context; context = altss_get(LocalContext); if(context) ALCcontext_IncRef(context); else { LockLists(); context = ATOMIC_LOAD_SEQ(&GlobalContext); if(context) ALCcontext_IncRef(context); UnlockLists(); } return context; } void AllocateVoices(ALCcontext *context, ALsizei num_voices, ALsizei old_sends) { ALCdevice *device = context->Device; ALsizei num_sends = device->NumAuxSends; struct ALvoiceProps *props; size_t sizeof_props; size_t sizeof_voice; ALvoice **voices; ALvoice *voice; ALsizei v = 0; size_t size; if(num_voices == context->MaxVoices && num_sends == old_sends) return; /* Allocate the voice pointers, voices, and the voices' stored source * property set (including the dynamically-sized Send[] array) in one * chunk. */ sizeof_voice = RoundUp(FAM_SIZE(ALvoice, Send, num_sends), 16); sizeof_props = RoundUp(FAM_SIZE(struct ALvoiceProps, Send, num_sends), 16); size = sizeof(ALvoice*) + sizeof_voice + sizeof_props; voices = al_calloc(16, RoundUp(size*num_voices, 16)); /* The voice and property objects are stored interleaved since they're * paired together. */ voice = (ALvoice*)((char*)voices + RoundUp(num_voices*sizeof(ALvoice*), 16)); props = (struct ALvoiceProps*)((char*)voice + sizeof_voice); if(context->Voices) { const ALsizei v_count = mini(context->VoiceCount, num_voices); const ALsizei s_count = mini(old_sends, num_sends); for(;v < v_count;v++) { ALvoice *old_voice = context->Voices[v]; ALsizei i; /* Copy the old voice data and source property set to the new * storage. */ *voice = *old_voice; for(i = 0;i < s_count;i++) voice->Send[i] = old_voice->Send[i]; *props = *(old_voice->Props); for(i = 0;i < s_count;i++) props->Send[i] = old_voice->Props->Send[i]; /* Set this voice's property set pointer and voice reference. */ voice->Props = props; voices[v] = voice; /* Increment pointers to the next storage space. */ voice = (ALvoice*)((char*)props + sizeof_props); props = (struct ALvoiceProps*)((char*)voice + sizeof_voice); } /* Deinit any left over voices that weren't copied over to the new * array. NOTE: If this does anything, v equals num_voices and * num_voices is less than VoiceCount, so the following loop won't do * anything. */ for(;v < context->VoiceCount;v++) DeinitVoice(context->Voices[v]); } /* Finish setting the voices' property set pointers and references. */ for(;v < num_voices;v++) { ATOMIC_INIT(&voice->Update, NULL); voice->Props = props; voices[v] = voice; voice = (ALvoice*)((char*)props + sizeof_props); props = (struct ALvoiceProps*)((char*)voice + sizeof_voice); } al_free(context->Voices); context->Voices = voices; context->MaxVoices = num_voices; context->VoiceCount = mini(context->VoiceCount, num_voices); } /************************************************ * 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 = ATOMIC_EXCHANGE_SEQ(&device->LastError, ALC_NO_ERROR); ALCdevice_DecRef(device); } else errorCode = ATOMIC_EXCHANGE_SEQ(&LastNullDeviceError, ALC_NO_ERROR); return errorCode; } /* alcSuspendContext * * Suspends updates for the given context */ ALC_API ALCvoid ALC_APIENTRY alcSuspendContext(ALCcontext *context) { if(!SuspendDefers) return; if(!VerifyContext(&context)) alcSetError(NULL, ALC_INVALID_CONTEXT); else { ALCcontext_DeferUpdates(context); ALCcontext_DecRef(context); } } /* alcProcessContext * * Resumes processing updates for the given context */ ALC_API ALCvoid ALC_APIENTRY alcProcessContext(ALCcontext *context) { if(!SuspendDefers) return; if(!VerifyContext(&context)) alcSetError(NULL, ALC_INVALID_CONTEXT); else { ALCcontext_ProcessUpdates(context); ALCcontext_DecRef(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 = alstr_get_cstr(Device->DeviceName); ALCdevice_DecRef(Device); } else { ProbeAllDevicesList(); value = alstr_get_cstr(alcAllDevicesList); } break; case ALC_CAPTURE_DEVICE_SPECIFIER: if(VerifyDevice(&Device)) { value = alstr_get_cstr(Device->DeviceName); ALCdevice_DecRef(Device); } else { ProbeCaptureDeviceList(); value = alstr_get_cstr(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(alstr_empty(alcAllDevicesList)) ProbeAllDevicesList(); VerifyDevice(&Device); free(alcDefaultAllDevicesSpecifier); alcDefaultAllDevicesSpecifier = strdup(alstr_get_cstr(alcAllDevicesList)); if(!alcDefaultAllDevicesSpecifier) alcSetError(Device, ALC_OUT_OF_MEMORY); value = alcDefaultAllDevicesSpecifier; if(Device) ALCdevice_DecRef(Device); break; case ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER: if(alstr_empty(alcCaptureDeviceList)) ProbeCaptureDeviceList(); VerifyDevice(&Device); free(alcCaptureDefaultDeviceSpecifier); alcCaptureDefaultDeviceSpecifier = strdup(alstr_get_cstr(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; case ALC_HRTF_SPECIFIER_SOFT: if(!VerifyDevice(&Device)) alcSetError(NULL, ALC_INVALID_DEVICE); else { almtx_lock(&Device->BackendLock); value = (Device->HrtfHandle ? alstr_get_cstr(Device->HrtfName) : ""); almtx_unlock(&Device->BackendLock); ALCdevice_DecRef(Device); } break; default: VerifyDevice(&Device); alcSetError(Device, ALC_INVALID_ENUM); if(Device) ALCdevice_DecRef(Device); break; } return value; } static inline ALCsizei NumAttrsForDevice(ALCdevice *device) { if(device->Type == Capture) return 9; if(device->Type != Loopback) return 29; if(device->FmtChans == DevFmtAmbi3D) return 35; return 29; } static ALCsizei GetIntegerv(ALCdevice *device, ALCenum param, ALCsizei size, ALCint *values) { ALCsizei i; if(size <= 0 || values == NULL) { alcSetError(device, ALC_INVALID_VALUE); return 0; } if(!device) { switch(param) { case ALC_MAJOR_VERSION: values[0] = alcMajorVersion; return 1; case ALC_MINOR_VERSION: values[0] = alcMinorVersion; return 1; 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: case ALC_AMBISONIC_LAYOUT_SOFT: case ALC_AMBISONIC_SCALING_SOFT: case ALC_AMBISONIC_ORDER_SOFT: case ALC_MAX_AMBISONIC_ORDER_SOFT: alcSetError(NULL, ALC_INVALID_DEVICE); return 0; default: alcSetError(NULL, ALC_INVALID_ENUM); return 0; } return 0; } if(device->Type == Capture) { switch(param) { case ALC_ATTRIBUTES_SIZE: values[0] = NumAttrsForDevice(device); return 1; case ALC_ALL_ATTRIBUTES: if(size < NumAttrsForDevice(device)) { alcSetError(device, ALC_INVALID_VALUE); return 0; } i = 0; almtx_lock(&device->BackendLock); values[i++] = ALC_MAJOR_VERSION; values[i++] = alcMajorVersion; values[i++] = ALC_MINOR_VERSION; values[i++] = alcMinorVersion; values[i++] = ALC_CAPTURE_SAMPLES; values[i++] = V0(device->Backend,availableSamples)(); values[i++] = ALC_CONNECTED; values[i++] = ATOMIC_LOAD(&device->Connected, almemory_order_relaxed); almtx_unlock(&device->BackendLock); values[i++] = 0; return i; case ALC_MAJOR_VERSION: values[0] = alcMajorVersion; return 1; case ALC_MINOR_VERSION: values[0] = alcMinorVersion; return 1; case ALC_CAPTURE_SAMPLES: almtx_lock(&device->BackendLock); values[0] = V0(device->Backend,availableSamples)(); almtx_unlock(&device->BackendLock); return 1; case ALC_CONNECTED: values[0] = ATOMIC_LOAD(&device->Connected, almemory_order_acquire); return 1; default: alcSetError(device, ALC_INVALID_ENUM); return 0; } return 0; } /* render device */ switch(param) { case ALC_ATTRIBUTES_SIZE: values[0] = NumAttrsForDevice(device); return 1; case ALC_ALL_ATTRIBUTES: if(size < NumAttrsForDevice(device)) { alcSetError(device, ALC_INVALID_VALUE); return 0; } i = 0; almtx_lock(&device->BackendLock); values[i++] = ALC_MAJOR_VERSION; values[i++] = alcMajorVersion; values[i++] = ALC_MINOR_VERSION; values[i++] = alcMinorVersion; values[i++] = ALC_EFX_MAJOR_VERSION; values[i++] = alcEFXMajorVersion; values[i++] = ALC_EFX_MINOR_VERSION; values[i++] = alcEFXMinorVersion; values[i++] = ALC_FREQUENCY; values[i++] = device->Frequency; if(device->Type != Loopback) { values[i++] = ALC_REFRESH; values[i++] = device->Frequency / device->UpdateSize; values[i++] = ALC_SYNC; values[i++] = ALC_FALSE; } else { if(device->FmtChans == DevFmtAmbi3D) { values[i++] = ALC_AMBISONIC_LAYOUT_SOFT; values[i++] = device->AmbiLayout; values[i++] = ALC_AMBISONIC_SCALING_SOFT; values[i++] = device->AmbiScale; values[i++] = ALC_AMBISONIC_ORDER_SOFT; values[i++] = device->AmbiOrder; } values[i++] = ALC_FORMAT_CHANNELS_SOFT; values[i++] = device->FmtChans; values[i++] = ALC_FORMAT_TYPE_SOFT; values[i++] = device->FmtType; } values[i++] = ALC_MONO_SOURCES; values[i++] = device->NumMonoSources; values[i++] = ALC_STEREO_SOURCES; values[i++] = device->NumStereoSources; values[i++] = ALC_MAX_AUXILIARY_SENDS; values[i++] = device->NumAuxSends; values[i++] = ALC_HRTF_SOFT; values[i++] = (device->HrtfHandle ? ALC_TRUE : ALC_FALSE); values[i++] = ALC_HRTF_STATUS_SOFT; values[i++] = device->HrtfStatus; values[i++] = ALC_OUTPUT_LIMITER_SOFT; values[i++] = device->Limiter ? ALC_TRUE : ALC_FALSE; values[i++] = ALC_MAX_AMBISONIC_ORDER_SOFT; values[i++] = MAX_AMBI_ORDER; almtx_unlock(&device->BackendLock); values[i++] = 0; return i; case ALC_MAJOR_VERSION: values[0] = alcMajorVersion; return 1; case ALC_MINOR_VERSION: values[0] = alcMinorVersion; return 1; case ALC_EFX_MAJOR_VERSION: values[0] = alcEFXMajorVersion; return 1; case ALC_EFX_MINOR_VERSION: values[0] = alcEFXMinorVersion; return 1; case ALC_FREQUENCY: values[0] = device->Frequency; return 1; case ALC_REFRESH: if(device->Type == Loopback) { alcSetError(device, ALC_INVALID_DEVICE); return 0; } almtx_lock(&device->BackendLock); values[0] = device->Frequency / device->UpdateSize; almtx_unlock(&device->BackendLock); return 1; case ALC_SYNC: if(device->Type == Loopback) { alcSetError(device, ALC_INVALID_DEVICE); return 0; } values[0] = ALC_FALSE; return 1; case ALC_FORMAT_CHANNELS_SOFT: if(device->Type != Loopback) { alcSetError(device, ALC_INVALID_DEVICE); return 0; } values[0] = device->FmtChans; return 1; case ALC_FORMAT_TYPE_SOFT: if(device->Type != Loopback) { alcSetError(device, ALC_INVALID_DEVICE); return 0; } values[0] = device->FmtType; return 1; case ALC_AMBISONIC_LAYOUT_SOFT: if(device->Type != Loopback || device->FmtChans != DevFmtAmbi3D) { alcSetError(device, ALC_INVALID_DEVICE); return 0; } values[0] = device->AmbiLayout; return 1; case ALC_AMBISONIC_SCALING_SOFT: if(device->Type != Loopback || device->FmtChans != DevFmtAmbi3D) { alcSetError(device, ALC_INVALID_DEVICE); return 0; } values[0] = device->AmbiScale; return 1; case ALC_AMBISONIC_ORDER_SOFT: if(device->Type != Loopback || device->FmtChans != DevFmtAmbi3D) { alcSetError(device, ALC_INVALID_DEVICE); return 0; } values[0] = device->AmbiOrder; return 1; case ALC_MONO_SOURCES: values[0] = device->NumMonoSources; return 1; case ALC_STEREO_SOURCES: values[0] = device->NumStereoSources; return 1; case ALC_MAX_AUXILIARY_SENDS: values[0] = device->NumAuxSends; return 1; case ALC_CONNECTED: values[0] = ATOMIC_LOAD(&device->Connected, almemory_order_acquire); return 1; case ALC_HRTF_SOFT: values[0] = (device->HrtfHandle ? ALC_TRUE : ALC_FALSE); return 1; case ALC_HRTF_STATUS_SOFT: values[0] = device->HrtfStatus; return 1; case ALC_NUM_HRTF_SPECIFIERS_SOFT: almtx_lock(&device->BackendLock); FreeHrtfList(&device->HrtfList); device->HrtfList = EnumerateHrtf(device->DeviceName); values[0] = (ALCint)VECTOR_SIZE(device->HrtfList); almtx_unlock(&device->BackendLock); return 1; case ALC_OUTPUT_LIMITER_SOFT: values[0] = device->Limiter ? ALC_TRUE : ALC_FALSE; return 1; case ALC_MAX_AMBISONIC_ORDER_SOFT: values[0] = MAX_AMBI_ORDER; return 1; default: alcSetError(device, ALC_INVALID_ENUM); return 0; } return 0; } /* alcGetIntegerv * * Returns information about the device and the version of OpenAL */ ALC_API void ALC_APIENTRY alcGetIntegerv(ALCdevice *device, ALCenum param, ALCsizei size, ALCint *values) { VerifyDevice(&device); if(size <= 0 || values == NULL) alcSetError(device, ALC_INVALID_VALUE); else GetIntegerv(device, param, size, values); if(device) ALCdevice_DecRef(device); } ALC_API void ALC_APIENTRY alcGetInteger64vSOFT(ALCdevice *device, ALCenum pname, ALCsizei size, ALCint64SOFT *values) { ALCint *ivals; ALsizei i; VerifyDevice(&device); if(size <= 0 || values == NULL) alcSetError(device, ALC_INVALID_VALUE); else if(!device || device->Type == Capture) { ivals = malloc(size * sizeof(ALCint)); size = GetIntegerv(device, pname, size, ivals); for(i = 0;i < size;i++) values[i] = ivals[i]; free(ivals); } else /* render device */ { ClockLatency clock; ALuint64 basecount; ALuint samplecount; ALuint refcount; switch(pname) { case ALC_ATTRIBUTES_SIZE: *values = NumAttrsForDevice(device)+4; break; case ALC_ALL_ATTRIBUTES: if(size < NumAttrsForDevice(device)+4) alcSetError(device, ALC_INVALID_VALUE); else { i = 0; almtx_lock(&device->BackendLock); values[i++] = ALC_FREQUENCY; values[i++] = device->Frequency; if(device->Type != Loopback) { values[i++] = ALC_REFRESH; values[i++] = device->Frequency / device->UpdateSize; values[i++] = ALC_SYNC; values[i++] = ALC_FALSE; } else { if(device->FmtChans == DevFmtAmbi3D) { values[i++] = ALC_AMBISONIC_LAYOUT_SOFT; values[i++] = device->AmbiLayout; values[i++] = ALC_AMBISONIC_SCALING_SOFT; values[i++] = device->AmbiScale; values[i++] = ALC_AMBISONIC_ORDER_SOFT; values[i++] = device->AmbiOrder; } values[i++] = ALC_FORMAT_CHANNELS_SOFT; values[i++] = device->FmtChans; values[i++] = ALC_FORMAT_TYPE_SOFT; values[i++] = device->FmtType; } values[i++] = ALC_MONO_SOURCES; values[i++] = device->NumMonoSources; values[i++] = ALC_STEREO_SOURCES; values[i++] = device->NumStereoSources; values[i++] = ALC_MAX_AUXILIARY_SENDS; values[i++] = device->NumAuxSends; values[i++] = ALC_HRTF_SOFT; values[i++] = (device->HrtfHandle ? ALC_TRUE : ALC_FALSE); values[i++] = ALC_HRTF_STATUS_SOFT; values[i++] = device->HrtfStatus; values[i++] = ALC_OUTPUT_LIMITER_SOFT; values[i++] = device->Limiter ? ALC_TRUE : ALC_FALSE; clock = V0(device->Backend,getClockLatency)(); values[i++] = ALC_DEVICE_CLOCK_SOFT; values[i++] = clock.ClockTime; values[i++] = ALC_DEVICE_LATENCY_SOFT; values[i++] = clock.Latency; almtx_unlock(&device->BackendLock); values[i++] = 0; } break; case ALC_DEVICE_CLOCK_SOFT: almtx_lock(&device->BackendLock); do { while(((refcount=ReadRef(&device->MixCount))&1) != 0) althrd_yield(); basecount = device->ClockBase; samplecount = device->SamplesDone; } while(refcount != ReadRef(&device->MixCount)); *values = basecount + (samplecount*DEVICE_CLOCK_RES/device->Frequency); almtx_unlock(&device->BackendLock); break; case ALC_DEVICE_LATENCY_SOFT: almtx_lock(&device->BackendLock); clock = V0(device->Backend,getClockLatency)(); almtx_unlock(&device->BackendLock); *values = clock.Latency; break; case ALC_DEVICE_CLOCK_LATENCY_SOFT: if(size < 2) alcSetError(device, ALC_INVALID_VALUE); else { almtx_lock(&device->BackendLock); clock = V0(device->Backend,getClockLatency)(); almtx_unlock(&device->BackendLock); values[0] = clock.ClockTime; values[1] = clock.Latency; } break; default: ivals = malloc(size * sizeof(ALCint)); size = GetIntegerv(device, pname, size, ivals); for(i = 0;i < size;i++) values[i] = ivals[i]; free(ivals); 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; 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) { VerifyDevice(&device); alcSetError(device, ALC_INVALID_VALUE); if(device) ALCdevice_DecRef(device); } else { size_t i = 0; for(i = 0;i < COUNTOF(alcFunctions);i++) { if(strcmp(alcFunctions[i].funcName, funcName) == 0) { ptr = alcFunctions[i].address; break; } } } 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) { VerifyDevice(&device); alcSetError(device, ALC_INVALID_VALUE); if(device) ALCdevice_DecRef(device); } else { size_t i = 0; for(i = 0;i < COUNTOF(alcEnumerations);i++) { if(strcmp(alcEnumerations[i].enumName, enumName) == 0) { val = alcEnumerations[i].value; break; } } } 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; ALfloat valf; ALCenum err; /* Explicitly hold the list lock while taking the BackendLock in case the * device is asynchronously destropyed, to ensure this new context is * properly cleaned up after being made. */ LockLists(); if(!VerifyDevice(&device) || device->Type == Capture || !ATOMIC_LOAD(&device->Connected, almemory_order_relaxed)) { UnlockLists(); alcSetError(device, ALC_INVALID_DEVICE); if(device) ALCdevice_DecRef(device); return NULL; } almtx_lock(&device->BackendLock); UnlockLists(); ATOMIC_STORE_SEQ(&device->LastError, ALC_NO_ERROR); if(device->Type == Playback && DefaultEffect.type != AL_EFFECT_NULL) ALContext = al_calloc(16, sizeof(ALCcontext)+sizeof(ALlistener)+sizeof(ALeffectslot)); else ALContext = al_calloc(16, sizeof(ALCcontext)+sizeof(ALlistener)); if(!ALContext) { almtx_unlock(&device->BackendLock); alcSetError(device, ALC_OUT_OF_MEMORY); ALCdevice_DecRef(device); return NULL; } InitRef(&ALContext->ref, 1); ALContext->Listener = (ALlistener*)ALContext->_listener_mem; ALContext->DefaultSlot = NULL; ALContext->Voices = NULL; ALContext->VoiceCount = 0; ALContext->MaxVoices = 0; ATOMIC_INIT(&ALContext->ActiveAuxSlots, NULL); ALContext->Device = device; ATOMIC_INIT(&ALContext->next, NULL); if((err=UpdateDeviceParams(device, attrList)) != ALC_NO_ERROR) { almtx_unlock(&device->BackendLock); al_free(ALContext); ALContext = NULL; alcSetError(device, err); if(err == ALC_INVALID_DEVICE) { V0(device->Backend,lock)(); aluHandleDisconnect(device, "Device update failure"); V0(device->Backend,unlock)(); } ALCdevice_DecRef(device); return NULL; } AllocateVoices(ALContext, 256, device->NumAuxSends); if(DefaultEffect.type != AL_EFFECT_NULL && device->Type == Playback) { ALContext->DefaultSlot = (ALeffectslot*)(ALContext->_listener_mem + sizeof(ALlistener)); if(InitEffectSlot(ALContext->DefaultSlot) == AL_NO_ERROR) aluInitEffectPanning(ALContext->DefaultSlot); else { ALContext->DefaultSlot = NULL; ERR("Failed to initialize the default effect slot\n"); } } ALCdevice_IncRef(ALContext->Device); InitContext(ALContext); if(ConfigValueFloat(alstr_get_cstr(device->DeviceName), NULL, "volume-adjust", &valf)) { if(!isfinite(valf)) ERR("volume-adjust must be finite: %f\n", valf); else { ALfloat db = clampf(valf, -24.0f, 24.0f); if(db != valf) WARN("volume-adjust clamped: %f, range: +/-%f\n", valf, 24.0f); ALContext->GainBoost = powf(10.0f, db/20.0f); TRACE("volume-adjust gain: %f\n", ALContext->GainBoost); } } UpdateListenerProps(ALContext); { ALCcontext *head = ATOMIC_LOAD_SEQ(&device->ContextList); do { ATOMIC_STORE(&ALContext->next, head, almemory_order_relaxed); } while(ATOMIC_COMPARE_EXCHANGE_PTR_WEAK_SEQ(&device->ContextList, &head, ALContext) == 0); } almtx_unlock(&device->BackendLock); if(ALContext->DefaultSlot) { if(InitializeEffect(ALContext, ALContext->DefaultSlot, &DefaultEffect) == AL_NO_ERROR) UpdateEffectSlotProps(ALContext->DefaultSlot, ALContext); else ERR("Failed to initialize the default effect\n"); } 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(); if(!VerifyContext(&context)) { UnlockLists(); alcSetError(NULL, ALC_INVALID_CONTEXT); return; } Device = context->Device; if(Device) { almtx_lock(&Device->BackendLock); if(!ReleaseContext(context, Device)) { V0(Device->Backend,stop)(); Device->Flags &= ~DEVICE_RUNNING; } almtx_unlock(&Device->BackendLock); } UnlockLists(); ALCcontext_DecRef(context); } /* alcGetCurrentContext * * Returns the currently active context on the calling thread */ ALC_API ALCcontext* ALC_APIENTRY alcGetCurrentContext(void) { ALCcontext *Context = altss_get(LocalContext); if(!Context) Context = ATOMIC_LOAD_SEQ(&GlobalContext); return Context; } /* alcGetThreadContext * * Returns the currently active thread-local context */ ALC_API ALCcontext* ALC_APIENTRY alcGetThreadContext(void) { return altss_get(LocalContext); } /* 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 && !VerifyContext(&context)) { alcSetError(NULL, ALC_INVALID_CONTEXT); return ALC_FALSE; } /* context's reference count is already incremented */ context = ATOMIC_EXCHANGE_PTR_SEQ(&GlobalContext, context); if(context) ALCcontext_DecRef(context); if((context=altss_get(LocalContext)) != NULL) { altss_set(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 && !VerifyContext(&context)) { alcSetError(NULL, ALC_INVALID_CONTEXT); return ALC_FALSE; } /* context's reference count is already incremented */ old = altss_get(LocalContext); altss_set(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(!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) { ALCbackendFactory *factory; 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 #ifdef _WIN32 /* Some old Windows apps hardcode these expecting OpenAL to use a * specific audio API, even when they're not enumerated. Creative's * router effectively ignores them too. */ || strcasecmp(deviceName, "DirectSound3D") == 0 || strcasecmp(deviceName, "DirectSound") == 0 || strcasecmp(deviceName, "MMSYSTEM") == 0 #endif )) deviceName = NULL; device = al_calloc(16, sizeof(ALCdevice)); if(!device) { alcSetError(NULL, ALC_OUT_OF_MEMORY); return NULL; } //Validate device InitDevice(device, Playback); //Set output format device->FmtChans = DevFmtChannelsDefault; device->FmtType = DevFmtTypeDefault; device->Frequency = DEFAULT_OUTPUT_RATE; device->IsHeadphones = AL_FALSE; device->AmbiLayout = AmbiLayout_Default; device->AmbiScale = AmbiNorm_Default; device->NumUpdates = 3; device->UpdateSize = 1024; device->SourcesMax = 256; device->AuxiliaryEffectSlotMax = 64; device->NumAuxSends = DEFAULT_SENDS; if(ConfigValueStr(deviceName, NULL, "channels", &fmt)) { static const struct { const char name[16]; enum DevFmtChannels chans; ALsizei order; } chanlist[] = { { "mono", DevFmtMono, 0 }, { "stereo", DevFmtStereo, 0 }, { "quad", DevFmtQuad, 0 }, { "surround51", DevFmtX51, 0 }, { "surround61", DevFmtX61, 0 }, { "surround71", DevFmtX71, 0 }, { "surround51rear", DevFmtX51Rear, 0 }, { "ambi1", DevFmtAmbi3D, 1 }, { "ambi2", DevFmtAmbi3D, 2 }, { "ambi3", DevFmtAmbi3D, 3 }, }; size_t i; for(i = 0;i < COUNTOF(chanlist);i++) { if(strcasecmp(chanlist[i].name, fmt) == 0) { device->FmtChans = chanlist[i].chans; device->AmbiOrder = chanlist[i].order; device->Flags |= DEVICE_CHANNELS_REQUEST; break; } } if(i == COUNTOF(chanlist)) ERR("Unsupported channels: %s\n", fmt); } if(ConfigValueStr(deviceName, 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); } if(ConfigValueUInt(deviceName, 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(deviceName, NULL, "periods", &device->NumUpdates); device->NumUpdates = clampu(device->NumUpdates, 2, 16); ConfigValueUInt(deviceName, NULL, "period_size", &device->UpdateSize); device->UpdateSize = clampu(device->UpdateSize, 64, 8192); if((CPUCapFlags&(CPU_CAP_SSE|CPU_CAP_NEON)) != 0) device->UpdateSize = (device->UpdateSize+3)&~3; ConfigValueUInt(deviceName, NULL, "sources", &device->SourcesMax); if(device->SourcesMax == 0) device->SourcesMax = 256; ConfigValueUInt(deviceName, NULL, "slots", &device->AuxiliaryEffectSlotMax); if(device->AuxiliaryEffectSlotMax == 0) device->AuxiliaryEffectSlotMax = 64; if(ConfigValueInt(deviceName, NULL, "sends", &device->NumAuxSends)) device->NumAuxSends = clampi( DEFAULT_SENDS, 0, clampi(device->NumAuxSends, 0, MAX_SENDS) ); device->NumStereoSources = 1; device->NumMonoSources = device->SourcesMax - device->NumStereoSources; factory = PlaybackBackend.getFactory(); device->Backend = V(factory,createBackend)(device, ALCbackend_Playback); if(!device->Backend) { FreeDevice(device); alcSetError(NULL, ALC_OUT_OF_MEMORY); return NULL; } // Find a playback device to open if((err=V(device->Backend,open)(deviceName)) != ALC_NO_ERROR) { FreeDevice(device); alcSetError(NULL, err); return NULL; } if(ConfigValueStr(alstr_get_cstr(device->DeviceName), NULL, "ambi-format", &fmt)) { if(strcasecmp(fmt, "fuma") == 0) { device->AmbiLayout = AmbiLayout_FuMa; device->AmbiScale = AmbiNorm_FuMa; } else if(strcasecmp(fmt, "acn+sn3d") == 0) { device->AmbiLayout = AmbiLayout_ACN; device->AmbiScale = AmbiNorm_SN3D; } else if(strcasecmp(fmt, "acn+n3d") == 0) { device->AmbiLayout = AmbiLayout_ACN; device->AmbiScale = AmbiNorm_N3D; } else ERR("Unsupported ambi-format: %s\n", fmt); } device->Limiter = CreateDeviceLimiter(device); { ALCdevice *head = ATOMIC_LOAD_SEQ(&DeviceList); do { ATOMIC_STORE(&device->next, head, almemory_order_relaxed); } while(!ATOMIC_COMPARE_EXCHANGE_PTR_WEAK_SEQ(&DeviceList, &head, device)); } TRACE("Created device %p, \"%s\"\n", device, alstr_get_cstr(device->DeviceName)); return device; } /* alcCloseDevice * * Closes the given device. */ ALC_API ALCboolean ALC_APIENTRY alcCloseDevice(ALCdevice *device) { ALCdevice *iter, *origdev, *nextdev; ALCcontext *ctx; LockLists(); iter = ATOMIC_LOAD_SEQ(&DeviceList); do { if(iter == device) break; iter = ATOMIC_LOAD(&iter->next, almemory_order_relaxed); } while(iter != NULL); if(!iter || iter->Type == Capture) { alcSetError(iter, ALC_INVALID_DEVICE); UnlockLists(); return ALC_FALSE; } almtx_lock(&device->BackendLock); origdev = device; nextdev = ATOMIC_LOAD(&device->next, almemory_order_relaxed); if(!ATOMIC_COMPARE_EXCHANGE_PTR_STRONG_SEQ(&DeviceList, &origdev, nextdev)) { ALCdevice *list; do { list = origdev; origdev = device; } while(!ATOMIC_COMPARE_EXCHANGE_PTR_STRONG_SEQ(&list->next, &origdev, nextdev)); } UnlockLists(); ctx = ATOMIC_LOAD_SEQ(&device->ContextList); while(ctx != NULL) { ALCcontext *next = ATOMIC_LOAD(&ctx->next, almemory_order_relaxed); WARN("Releasing context %p\n", ctx); ReleaseContext(ctx, device); ctx = next; } if((device->Flags&DEVICE_RUNNING)) V0(device->Backend,stop)(); device->Flags &= ~DEVICE_RUNNING; almtx_unlock(&device->BackendLock); ALCdevice_DecRef(device); return ALC_TRUE; } /************************************************ * ALC capture functions ************************************************/ ALC_API ALCdevice* ALC_APIENTRY alcCaptureOpenDevice(const ALCchar *deviceName, ALCuint frequency, ALCenum format, ALCsizei samples) { ALCbackendFactory *factory; 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 = al_calloc(16, sizeof(ALCdevice)); if(!device) { alcSetError(NULL, ALC_OUT_OF_MEMORY); return NULL; } //Validate device InitDevice(device, Capture); device->Frequency = frequency; device->Flags |= DEVICE_FREQUENCY_REQUEST; if(DecomposeDevFormat(format, &device->FmtChans, &device->FmtType) == AL_FALSE) { FreeDevice(device); alcSetError(NULL, ALC_INVALID_ENUM); return NULL; } device->Flags |= DEVICE_CHANNELS_REQUEST | DEVICE_SAMPLE_TYPE_REQUEST; device->IsHeadphones = AL_FALSE; device->AmbiOrder = 0; device->AmbiLayout = AmbiLayout_Default; device->AmbiScale = AmbiNorm_Default; device->UpdateSize = samples; device->NumUpdates = 1; factory = CaptureBackend.getFactory(); device->Backend = V(factory,createBackend)(device, ALCbackend_Capture); if(!device->Backend) { FreeDevice(device); alcSetError(NULL, ALC_OUT_OF_MEMORY); return NULL; } TRACE("Capture format: %s, %s, %uhz, %u update size x%d\n", DevFmtChannelsString(device->FmtChans), DevFmtTypeString(device->FmtType), device->Frequency, device->UpdateSize, device->NumUpdates ); if((err=V(device->Backend,open)(deviceName)) != ALC_NO_ERROR) { FreeDevice(device); alcSetError(NULL, err); return NULL; } { ALCdevice *head = ATOMIC_LOAD_SEQ(&DeviceList); do { ATOMIC_STORE(&device->next, head, almemory_order_relaxed); } while(!ATOMIC_COMPARE_EXCHANGE_PTR_WEAK_SEQ(&DeviceList, &head, device)); } TRACE("Created device %p, \"%s\"\n", device, alstr_get_cstr(device->DeviceName)); return device; } ALC_API ALCboolean ALC_APIENTRY alcCaptureCloseDevice(ALCdevice *device) { ALCdevice *iter, *origdev, *nextdev; LockLists(); iter = ATOMIC_LOAD_SEQ(&DeviceList); do { if(iter == device) break; iter = ATOMIC_LOAD(&iter->next, almemory_order_relaxed); } while(iter != NULL); if(!iter || iter->Type != Capture) { alcSetError(iter, ALC_INVALID_DEVICE); UnlockLists(); return ALC_FALSE; } origdev = device; nextdev = ATOMIC_LOAD(&device->next, almemory_order_relaxed); if(!ATOMIC_COMPARE_EXCHANGE_PTR_STRONG_SEQ(&DeviceList, &origdev, nextdev)) { ALCdevice *list; do { list = origdev; origdev = device; } while(!ATOMIC_COMPARE_EXCHANGE_PTR_STRONG_SEQ(&list->next, &origdev, nextdev)); } UnlockLists(); ALCdevice_DecRef(device); return ALC_TRUE; } ALC_API void ALC_APIENTRY alcCaptureStart(ALCdevice *device) { if(!VerifyDevice(&device) || device->Type != Capture) alcSetError(device, ALC_INVALID_DEVICE); else { almtx_lock(&device->BackendLock); if(!ATOMIC_LOAD(&device->Connected, almemory_order_acquire)) alcSetError(device, ALC_INVALID_DEVICE); else if(!(device->Flags&DEVICE_RUNNING)) { if(V0(device->Backend,start)()) device->Flags |= DEVICE_RUNNING; else { aluHandleDisconnect(device, "Device start failure"); alcSetError(device, ALC_INVALID_DEVICE); } } almtx_unlock(&device->BackendLock); } if(device) ALCdevice_DecRef(device); } ALC_API void ALC_APIENTRY alcCaptureStop(ALCdevice *device) { if(!VerifyDevice(&device) || device->Type != Capture) alcSetError(device, ALC_INVALID_DEVICE); else { almtx_lock(&device->BackendLock); if((device->Flags&DEVICE_RUNNING)) V0(device->Backend,stop)(); device->Flags &= ~DEVICE_RUNNING; almtx_unlock(&device->BackendLock); } if(device) ALCdevice_DecRef(device); } ALC_API void ALC_APIENTRY alcCaptureSamples(ALCdevice *device, ALCvoid *buffer, ALCsizei samples) { if(!VerifyDevice(&device) || device->Type != Capture) alcSetError(device, ALC_INVALID_DEVICE); else { ALCenum err = ALC_INVALID_VALUE; almtx_lock(&device->BackendLock); if(samples >= 0 && V0(device->Backend,availableSamples)() >= (ALCuint)samples) err = V(device->Backend,captureSamples)(buffer, samples); almtx_unlock(&device->BackendLock); 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) { ALCbackendFactory *factory; 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 = al_calloc(16, sizeof(ALCdevice)); if(!device) { alcSetError(NULL, ALC_OUT_OF_MEMORY); return NULL; } //Validate device InitDevice(device, Loopback); device->SourcesMax = 256; device->AuxiliaryEffectSlotMax = 64; device->NumAuxSends = DEFAULT_SENDS; //Set output format device->NumUpdates = 0; device->UpdateSize = 0; device->Frequency = DEFAULT_OUTPUT_RATE; device->FmtChans = DevFmtChannelsDefault; device->FmtType = DevFmtTypeDefault; device->IsHeadphones = AL_FALSE; device->AmbiLayout = AmbiLayout_Default; device->AmbiScale = AmbiNorm_Default; ConfigValueUInt(NULL, NULL, "sources", &device->SourcesMax); if(device->SourcesMax == 0) device->SourcesMax = 256; ConfigValueUInt(NULL, NULL, "slots", &device->AuxiliaryEffectSlotMax); if(device->AuxiliaryEffectSlotMax == 0) device->AuxiliaryEffectSlotMax = 64; if(ConfigValueInt(NULL, NULL, "sends", &device->NumAuxSends)) device->NumAuxSends = clampi( DEFAULT_SENDS, 0, clampi(device->NumAuxSends, 0, MAX_SENDS) ); device->NumStereoSources = 1; device->NumMonoSources = device->SourcesMax - device->NumStereoSources; factory = ALCloopbackFactory_getFactory(); device->Backend = V(factory,createBackend)(device, ALCbackend_Loopback); if(!device->Backend) { al_free(device); alcSetError(NULL, ALC_OUT_OF_MEMORY); return NULL; } // Open the "backend" V(device->Backend,open)("Loopback"); device->Limiter = CreateDeviceLimiter(device); { ALCdevice *head = ATOMIC_LOAD_SEQ(&DeviceList); do { ATOMIC_STORE(&device->next, head, almemory_order_relaxed); } while(!ATOMIC_COMPARE_EXCHANGE_PTR_WEAK_SEQ(&DeviceList, &head, 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(!VerifyDevice(&device) || device->Type != Loopback) alcSetError(device, ALC_INVALID_DEVICE); else if(freq <= 0) alcSetError(device, ALC_INVALID_VALUE); else { if(IsValidALCType(type) && IsValidALCChannels(channels) && 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. */ FORCE_ALIGN ALC_API void ALC_APIENTRY alcRenderSamplesSOFT(ALCdevice *device, ALCvoid *buffer, ALCsizei samples) { if(!VerifyDevice(&device) || device->Type != Loopback) alcSetError(device, ALC_INVALID_DEVICE); else if(samples < 0 || (samples > 0 && buffer == NULL)) alcSetError(device, ALC_INVALID_VALUE); else { V0(device->Backend,lock)(); aluMixData(device, buffer, samples); V0(device->Backend,unlock)(); } if(device) ALCdevice_DecRef(device); } /************************************************ * ALC DSP pause/resume functions ************************************************/ /* alcDevicePauseSOFT * * Pause the DSP to stop audio processing. */ ALC_API void ALC_APIENTRY alcDevicePauseSOFT(ALCdevice *device) { if(!VerifyDevice(&device) || device->Type != Playback) alcSetError(device, ALC_INVALID_DEVICE); else { almtx_lock(&device->BackendLock); if((device->Flags&DEVICE_RUNNING)) V0(device->Backend,stop)(); device->Flags &= ~DEVICE_RUNNING; device->Flags |= DEVICE_PAUSED; almtx_unlock(&device->BackendLock); } if(device) ALCdevice_DecRef(device); } /* alcDeviceResumeSOFT * * Resume the DSP to restart audio processing. */ ALC_API void ALC_APIENTRY alcDeviceResumeSOFT(ALCdevice *device) { if(!VerifyDevice(&device) || device->Type != Playback) alcSetError(device, ALC_INVALID_DEVICE); else { almtx_lock(&device->BackendLock); if((device->Flags&DEVICE_PAUSED)) { device->Flags &= ~DEVICE_PAUSED; if(ATOMIC_LOAD_SEQ(&device->ContextList) != NULL) { if(V0(device->Backend,start)() != ALC_FALSE) device->Flags |= DEVICE_RUNNING; else { V0(device->Backend,lock)(); aluHandleDisconnect(device, "Device start failure"); V0(device->Backend,unlock)(); alcSetError(device, ALC_INVALID_DEVICE); } } } almtx_unlock(&device->BackendLock); } if(device) ALCdevice_DecRef(device); } /************************************************ * ALC HRTF functions ************************************************/ /* alcGetStringiSOFT * * Gets a string parameter at the given index. */ ALC_API const ALCchar* ALC_APIENTRY alcGetStringiSOFT(ALCdevice *device, ALCenum paramName, ALCsizei index) { const ALCchar *str = NULL; if(!VerifyDevice(&device) || device->Type == Capture) alcSetError(device, ALC_INVALID_DEVICE); else switch(paramName) { case ALC_HRTF_SPECIFIER_SOFT: if(index >= 0 && (size_t)index < VECTOR_SIZE(device->HrtfList)) str = alstr_get_cstr(VECTOR_ELEM(device->HrtfList, index).name); else alcSetError(device, ALC_INVALID_VALUE); break; default: alcSetError(device, ALC_INVALID_ENUM); break; } if(device) ALCdevice_DecRef(device); return str; } /* alcResetDeviceSOFT * * Resets the given device output, using the specified attribute list. */ ALC_API ALCboolean ALC_APIENTRY alcResetDeviceSOFT(ALCdevice *device, const ALCint *attribs) { ALCenum err; LockLists(); if(!VerifyDevice(&device) || device->Type == Capture || !ATOMIC_LOAD(&device->Connected, almemory_order_relaxed)) { UnlockLists(); alcSetError(device, ALC_INVALID_DEVICE); if(device) ALCdevice_DecRef(device); return ALC_FALSE; } almtx_lock(&device->BackendLock); UnlockLists(); err = UpdateDeviceParams(device, attribs); almtx_unlock(&device->BackendLock); if(err != ALC_NO_ERROR) { alcSetError(device, err); if(err == ALC_INVALID_DEVICE) { V0(device->Backend,lock)(); aluHandleDisconnect(device, "Device start failure"); V0(device->Backend,unlock)(); } ALCdevice_DecRef(device); return ALC_FALSE; } ALCdevice_DecRef(device); return ALC_TRUE; }