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/**
* OpenAL cross platform audio library
* Copyright (C) 1999-2007 by authors.
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
* Or go to http://www.gnu.org/copyleft/lgpl.html
*/
#include "config.h"
#include <math.h>
#include <stdlib.h>
#include <stdio.h>
#include <memory.h>
#include <ctype.h>
#include <signal.h>
#include "alMain.h"
#include "alSource.h"
#include "AL/al.h"
#include "AL/alc.h"
#include "AL/alext.h"
#include "alThunk.h"
#include "alSource.h"
#include "alBuffer.h"
#include "alAuxEffectSlot.h"
#include "alError.h"
#include "bs2b.h"
#include "alu.h"
#define EmptyFuncs { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
static struct BackendInfo BackendList[] = {
#ifdef HAVE_PULSEAUDIO
{ "pulse", alc_pulse_init, alc_pulse_deinit, alc_pulse_probe, EmptyFuncs },
#endif
#ifdef HAVE_ALSA
{ "alsa", alc_alsa_init, alc_alsa_deinit, alc_alsa_probe, EmptyFuncs },
#endif
#ifdef HAVE_ASOUND
{ "asound", alc_asound_init, alc_asound_deinit, alc_asound_probe, EmptyFuncs },
#endif
#ifdef HAVE_COREAUDIO
{ "core", alc_ca_init, alc_ca_deinit, alc_ca_probe, EmptyFuncs },
#endif
#ifdef HAVE_OSS
{ "oss", alc_oss_init, alc_oss_deinit, alc_oss_probe, EmptyFuncs },
#endif
#ifdef HAVE_SOLARIS
{ "solaris", alc_solaris_init, alc_solaris_deinit, alc_solaris_probe, EmptyFuncs },
#endif
#ifdef HAVE_SNDIO
{ "sndio", alc_sndio_init, alc_sndio_deinit, alc_sndio_probe, EmptyFuncs },
#endif
#ifdef HAVE_MMDEVAPI
{ "mmdevapi", alcMMDevApiInit, alcMMDevApiDeinit, alcMMDevApiProbe, EmptyFuncs },
#endif
#ifdef HAVE_DSOUND
{ "dsound", alcDSoundInit, alcDSoundDeinit, alcDSoundProbe, EmptyFuncs },
#endif
#ifdef HAVE_WINMM
{ "winmm", alcWinMMInit, alcWinMMDeinit, alcWinMMProbe, EmptyFuncs },
#endif
#ifdef HAVE_PORTAUDIO
{ "port", alc_pa_init, alc_pa_deinit, alc_pa_probe, EmptyFuncs },
#endif
#ifdef HAVE_OPENSL
{ "opensl", alc_opensl_init, alc_opensl_deinit, alc_opensl_probe, EmptyFuncs },
#endif
{ "null", alc_null_init, alc_null_deinit, alc_null_probe, EmptyFuncs },
#ifdef HAVE_WAVE
{ "wave", alc_wave_init, alc_wave_deinit, alc_wave_probe, EmptyFuncs },
#endif
{ NULL, NULL, NULL, NULL, EmptyFuncs }
};
static struct BackendInfo BackendLoopback = {
"loopback", alc_loopback_init, alc_loopback_deinit, alc_loopback_probe, EmptyFuncs
};
#undef EmptyFuncs
static struct BackendInfo PlaybackBackend;
static struct BackendInfo CaptureBackend;
///////////////////////////////////////////////////////
// STRING and EXTENSIONS
typedef struct ALCfunction {
const ALCchar *funcName;
ALCvoid *address;
} ALCfunction;
typedef struct ALCenums {
const ALCchar *enumName;
ALCenum value;
} ALCenums;
#define AL_ALEXT_PROTOTYPES
static const ALCfunction alcFunctions[] = {
{ "alcCreateContext", (ALCvoid *) alcCreateContext },
{ "alcMakeContextCurrent", (ALCvoid *) alcMakeContextCurrent },
{ "alcProcessContext", (ALCvoid *) alcProcessContext },
{ "alcSuspendContext", (ALCvoid *) alcSuspendContext },
{ "alcDestroyContext", (ALCvoid *) alcDestroyContext },
{ "alcGetCurrentContext", (ALCvoid *) alcGetCurrentContext },
{ "alcGetContextsDevice", (ALCvoid *) alcGetContextsDevice },
{ "alcOpenDevice", (ALCvoid *) alcOpenDevice },
{ "alcCloseDevice", (ALCvoid *) alcCloseDevice },
{ "alcGetError", (ALCvoid *) alcGetError },
{ "alcIsExtensionPresent", (ALCvoid *) alcIsExtensionPresent },
{ "alcGetProcAddress", (ALCvoid *) alcGetProcAddress },
{ "alcGetEnumValue", (ALCvoid *) alcGetEnumValue },
{ "alcGetString", (ALCvoid *) alcGetString },
{ "alcGetIntegerv", (ALCvoid *) alcGetIntegerv },
{ "alcCaptureOpenDevice", (ALCvoid *) alcCaptureOpenDevice },
{ "alcCaptureCloseDevice", (ALCvoid *) alcCaptureCloseDevice },
{ "alcCaptureStart", (ALCvoid *) alcCaptureStart },
{ "alcCaptureStop", (ALCvoid *) alcCaptureStop },
{ "alcCaptureSamples", (ALCvoid *) alcCaptureSamples },
#ifdef AL_ALEXT_PROTOTYPES
{ "alcSetThreadContext", (ALCvoid *) alcSetThreadContext },
{ "alcGetThreadContext", (ALCvoid *) alcGetThreadContext },
{ "alcLoopbackOpenDeviceSOFT", (ALCvoid *) alcLoopbackOpenDeviceSOFT},
{ "alcIsRenderFormatSupportedSOFT",(ALCvoid *) alcIsRenderFormatSupportedSOFT},
{ "alcRenderSamplesSOFT", (ALCvoid *) alcRenderSamplesSOFT },
#endif
{ "alEnable", (ALCvoid *) alEnable },
{ "alDisable", (ALCvoid *) alDisable },
{ "alIsEnabled", (ALCvoid *) alIsEnabled },
{ "alGetString", (ALCvoid *) alGetString },
{ "alGetBooleanv", (ALCvoid *) alGetBooleanv },
{ "alGetIntegerv", (ALCvoid *) alGetIntegerv },
{ "alGetFloatv", (ALCvoid *) alGetFloatv },
{ "alGetDoublev", (ALCvoid *) alGetDoublev },
{ "alGetBoolean", (ALCvoid *) alGetBoolean },
{ "alGetInteger", (ALCvoid *) alGetInteger },
{ "alGetFloat", (ALCvoid *) alGetFloat },
{ "alGetDouble", (ALCvoid *) alGetDouble },
{ "alGetError", (ALCvoid *) alGetError },
{ "alIsExtensionPresent", (ALCvoid *) alIsExtensionPresent },
{ "alGetProcAddress", (ALCvoid *) alGetProcAddress },
{ "alGetEnumValue", (ALCvoid *) alGetEnumValue },
{ "alListenerf", (ALCvoid *) alListenerf },
{ "alListener3f", (ALCvoid *) alListener3f },
{ "alListenerfv", (ALCvoid *) alListenerfv },
{ "alListeneri", (ALCvoid *) alListeneri },
{ "alListener3i", (ALCvoid *) alListener3i },
{ "alListeneriv", (ALCvoid *) alListeneriv },
{ "alGetListenerf", (ALCvoid *) alGetListenerf },
{ "alGetListener3f", (ALCvoid *) alGetListener3f },
{ "alGetListenerfv", (ALCvoid *) alGetListenerfv },
{ "alGetListeneri", (ALCvoid *) alGetListeneri },
{ "alGetListener3i", (ALCvoid *) alGetListener3i },
{ "alGetListeneriv", (ALCvoid *) alGetListeneriv },
{ "alGenSources", (ALCvoid *) alGenSources },
{ "alDeleteSources", (ALCvoid *) alDeleteSources },
{ "alIsSource", (ALCvoid *) alIsSource },
{ "alSourcef", (ALCvoid *) alSourcef },
{ "alSource3f", (ALCvoid *) alSource3f },
{ "alSourcefv", (ALCvoid *) alSourcefv },
{ "alSourcei", (ALCvoid *) alSourcei },
{ "alSource3i", (ALCvoid *) alSource3i },
{ "alSourceiv", (ALCvoid *) alSourceiv },
{ "alGetSourcef", (ALCvoid *) alGetSourcef },
{ "alGetSource3f", (ALCvoid *) alGetSource3f },
{ "alGetSourcefv", (ALCvoid *) alGetSourcefv },
{ "alGetSourcei", (ALCvoid *) alGetSourcei },
{ "alGetSource3i", (ALCvoid *) alGetSource3i },
{ "alGetSourceiv", (ALCvoid *) alGetSourceiv },
{ "alSourcePlayv", (ALCvoid *) alSourcePlayv },
{ "alSourceStopv", (ALCvoid *) alSourceStopv },
{ "alSourceRewindv", (ALCvoid *) alSourceRewindv },
{ "alSourcePausev", (ALCvoid *) alSourcePausev },
{ "alSourcePlay", (ALCvoid *) alSourcePlay },
{ "alSourceStop", (ALCvoid *) alSourceStop },
{ "alSourceRewind", (ALCvoid *) alSourceRewind },
{ "alSourcePause", (ALCvoid *) alSourcePause },
{ "alSourceQueueBuffers", (ALCvoid *) alSourceQueueBuffers },
{ "alSourceUnqueueBuffers", (ALCvoid *) alSourceUnqueueBuffers },
{ "alGenBuffers", (ALCvoid *) alGenBuffers },
{ "alDeleteBuffers", (ALCvoid *) alDeleteBuffers },
{ "alIsBuffer", (ALCvoid *) alIsBuffer },
{ "alBufferData", (ALCvoid *) alBufferData },
{ "alBufferf", (ALCvoid *) alBufferf },
{ "alBuffer3f", (ALCvoid *) alBuffer3f },
{ "alBufferfv", (ALCvoid *) alBufferfv },
{ "alBufferi", (ALCvoid *) alBufferi },
{ "alBuffer3i", (ALCvoid *) alBuffer3i },
{ "alBufferiv", (ALCvoid *) alBufferiv },
{ "alGetBufferf", (ALCvoid *) alGetBufferf },
{ "alGetBuffer3f", (ALCvoid *) alGetBuffer3f },
{ "alGetBufferfv", (ALCvoid *) alGetBufferfv },
{ "alGetBufferi", (ALCvoid *) alGetBufferi },
{ "alGetBuffer3i", (ALCvoid *) alGetBuffer3i },
{ "alGetBufferiv", (ALCvoid *) alGetBufferiv },
{ "alDopplerFactor", (ALCvoid *) alDopplerFactor },
{ "alDopplerVelocity", (ALCvoid *) alDopplerVelocity },
{ "alSpeedOfSound", (ALCvoid *) alSpeedOfSound },
{ "alDistanceModel", (ALCvoid *) alDistanceModel },
#ifdef AL_ALEXT_PROTOTYPES
{ "alGenFilters", (ALCvoid *) alGenFilters },
{ "alDeleteFilters", (ALCvoid *) alDeleteFilters },
{ "alIsFilter", (ALCvoid *) alIsFilter },
{ "alFilteri", (ALCvoid *) alFilteri },
{ "alFilteriv", (ALCvoid *) alFilteriv },
{ "alFilterf", (ALCvoid *) alFilterf },
{ "alFilterfv", (ALCvoid *) alFilterfv },
{ "alGetFilteri", (ALCvoid *) alGetFilteri },
{ "alGetFilteriv", (ALCvoid *) alGetFilteriv },
{ "alGetFilterf", (ALCvoid *) alGetFilterf },
{ "alGetFilterfv", (ALCvoid *) alGetFilterfv },
{ "alGenEffects", (ALCvoid *) alGenEffects },
{ "alDeleteEffects", (ALCvoid *) alDeleteEffects },
{ "alIsEffect", (ALCvoid *) alIsEffect },
{ "alEffecti", (ALCvoid *) alEffecti },
{ "alEffectiv", (ALCvoid *) alEffectiv },
{ "alEffectf", (ALCvoid *) alEffectf },
{ "alEffectfv", (ALCvoid *) alEffectfv },
{ "alGetEffecti", (ALCvoid *) alGetEffecti },
{ "alGetEffectiv", (ALCvoid *) alGetEffectiv },
{ "alGetEffectf", (ALCvoid *) alGetEffectf },
{ "alGetEffectfv", (ALCvoid *) alGetEffectfv },
{ "alGenAuxiliaryEffectSlots", (ALCvoid *) alGenAuxiliaryEffectSlots},
{ "alDeleteAuxiliaryEffectSlots",(ALCvoid *) alDeleteAuxiliaryEffectSlots},
{ "alIsAuxiliaryEffectSlot", (ALCvoid *) alIsAuxiliaryEffectSlot },
{ "alAuxiliaryEffectSloti", (ALCvoid *) alAuxiliaryEffectSloti },
{ "alAuxiliaryEffectSlotiv", (ALCvoid *) alAuxiliaryEffectSlotiv },
{ "alAuxiliaryEffectSlotf", (ALCvoid *) alAuxiliaryEffectSlotf },
{ "alAuxiliaryEffectSlotfv", (ALCvoid *) alAuxiliaryEffectSlotfv },
{ "alGetAuxiliaryEffectSloti", (ALCvoid *) alGetAuxiliaryEffectSloti},
{ "alGetAuxiliaryEffectSlotiv", (ALCvoid *) alGetAuxiliaryEffectSlotiv},
{ "alGetAuxiliaryEffectSlotf", (ALCvoid *) alGetAuxiliaryEffectSlotf},
{ "alGetAuxiliaryEffectSlotfv", (ALCvoid *) alGetAuxiliaryEffectSlotfv},
{ "alBufferSubDataSOFT", (ALCvoid *) alBufferSubDataSOFT },
{ "alBufferSamplesSOFT", (ALCvoid *) alBufferSamplesSOFT },
{ "alBufferSubSamplesSOFT", (ALCvoid *) alBufferSubSamplesSOFT },
{ "alGetBufferSamplesSOFT", (ALCvoid *) alGetBufferSamplesSOFT },
{ "alIsBufferFormatSupportedSOFT",(ALCvoid *) alIsBufferFormatSupportedSOFT},
{ "alDeferUpdatesSOFT", (ALCvoid *) alDeferUpdatesSOFT },
{ "alProcessUpdatesSOFT", (ALCvoid *) alProcessUpdatesSOFT },
#endif
{ NULL, (ALCvoid *) NULL }
};
static const ALCenums enumeration[] = {
// Types
{ "ALC_INVALID", ALC_INVALID },
{ "ALC_FALSE", ALC_FALSE },
{ "ALC_TRUE", ALC_TRUE },
// ALC Properties
{ "ALC_MAJOR_VERSION", ALC_MAJOR_VERSION },
{ "ALC_MINOR_VERSION", ALC_MINOR_VERSION },
{ "ALC_ATTRIBUTES_SIZE", ALC_ATTRIBUTES_SIZE },
{ "ALC_ALL_ATTRIBUTES", ALC_ALL_ATTRIBUTES },
{ "ALC_DEFAULT_DEVICE_SPECIFIER", ALC_DEFAULT_DEVICE_SPECIFIER },
{ "ALC_DEVICE_SPECIFIER", ALC_DEVICE_SPECIFIER },
{ "ALC_ALL_DEVICES_SPECIFIER", ALC_ALL_DEVICES_SPECIFIER },
{ "ALC_DEFAULT_ALL_DEVICES_SPECIFIER", ALC_DEFAULT_ALL_DEVICES_SPECIFIER },
{ "ALC_EXTENSIONS", ALC_EXTENSIONS },
{ "ALC_FREQUENCY", ALC_FREQUENCY },
{ "ALC_REFRESH", ALC_REFRESH },
{ "ALC_SYNC", ALC_SYNC },
{ "ALC_MONO_SOURCES", ALC_MONO_SOURCES },
{ "ALC_STEREO_SOURCES", ALC_STEREO_SOURCES },
{ "ALC_CAPTURE_DEVICE_SPECIFIER", ALC_CAPTURE_DEVICE_SPECIFIER },
{ "ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER", ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER},
{ "ALC_CAPTURE_SAMPLES", ALC_CAPTURE_SAMPLES },
{ "ALC_CONNECTED", ALC_CONNECTED },
// EFX Properties
{ "ALC_EFX_MAJOR_VERSION", ALC_EFX_MAJOR_VERSION },
{ "ALC_EFX_MINOR_VERSION", ALC_EFX_MINOR_VERSION },
{ "ALC_MAX_AUXILIARY_SENDS", ALC_MAX_AUXILIARY_SENDS },
// Loopback device Properties
{ "ALC_FORMAT_CHANNELS_SOFT", ALC_FORMAT_CHANNELS_SOFT },
{ "ALC_FORMAT_TYPE_SOFT", ALC_FORMAT_TYPE_SOFT },
// Buffer Channel Configurations
{ "ALC_MONO_SOFT", ALC_MONO_SOFT },
{ "ALC_STEREO_SOFT", ALC_STEREO_SOFT },
{ "ALC_QUAD_SOFT", ALC_QUAD_SOFT },
{ "ALC_5POINT1_SOFT", ALC_5POINT1_SOFT },
{ "ALC_6POINT1_SOFT", ALC_6POINT1_SOFT },
{ "ALC_7POINT1_SOFT", ALC_7POINT1_SOFT },
// Buffer Sample Types
{ "ALC_BYTE_SOFT", ALC_BYTE_SOFT },
{ "ALC_UNSIGNED_BYTE_SOFT", ALC_UNSIGNED_BYTE_SOFT },
{ "ALC_SHORT_SOFT", ALC_SHORT_SOFT },
{ "ALC_UNSIGNED_SHORT_SOFT", ALC_UNSIGNED_SHORT_SOFT },
{ "ALC_INT_SOFT", ALC_INT_SOFT },
{ "ALC_UNSIGNED_INT_SOFT", ALC_UNSIGNED_INT_SOFT },
{ "ALC_FLOAT_SOFT", ALC_FLOAT_SOFT },
// ALC Error Message
{ "ALC_NO_ERROR", ALC_NO_ERROR },
{ "ALC_INVALID_DEVICE", ALC_INVALID_DEVICE },
{ "ALC_INVALID_CONTEXT", ALC_INVALID_CONTEXT },
{ "ALC_INVALID_ENUM", ALC_INVALID_ENUM },
{ "ALC_INVALID_VALUE", ALC_INVALID_VALUE },
{ "ALC_OUT_OF_MEMORY", ALC_OUT_OF_MEMORY },
{ NULL, (ALCenum)0 }
};
// Error strings
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";
/* Device lists. Sizes only include the first ending null character, not the
* second */
static const ALCchar alcDefaultName[] = "OpenAL Soft\0";
static ALCchar *alcAllDeviceList;
static size_t alcAllDeviceListSize;
static ALCchar *alcCaptureDeviceList;
static size_t alcCaptureDeviceListSize;
/* Default is always the first in the list */
static ALCchar *alcDefaultAllDeviceSpecifier;
static ALCchar *alcCaptureDefaultDeviceSpecifier;
static const ALCchar alcNoDeviceExtList[] =
"ALC_ENUMERATE_ALL_EXT ALC_ENUMERATION_EXT ALC_EXT_CAPTURE "
"ALC_EXT_thread_local_context ALC_SOFT_loopback";
static const ALCchar alcExtensionList[] =
"ALC_ENUMERATE_ALL_EXT ALC_ENUMERATION_EXT ALC_EXT_CAPTURE "
"ALC_EXT_DEDICATED ALC_EXT_disconnect ALC_EXT_EFX "
"ALC_EXT_thread_local_context ALC_SOFT_loopback";
static const ALCint alcMajorVersion = 1;
static const ALCint alcMinorVersion = 1;
static const ALCint alcEFXMajorVersion = 1;
static const ALCint alcEFXMinorVersion = 0;
///////////////////////////////////////////////////////
///////////////////////////////////////////////////////
// Global Variables
static CRITICAL_SECTION ListLock;
/* Device List */
static ALCdevice *volatile DeviceList = NULL;
// Thread-local current context
static pthread_key_t LocalContext;
// Process-wide current context
static ALCcontext *volatile GlobalContext = NULL;
/* Device Error */
static volatile ALCenum g_eLastNullDeviceError = ALC_NO_ERROR;
// Default context extensions
static const ALchar alExtList[] =
"AL_EXT_ALAW AL_EXT_DOUBLE AL_EXT_EXPONENT_DISTANCE AL_EXT_FLOAT32 "
"AL_EXT_IMA4 AL_EXT_LINEAR_DISTANCE AL_EXT_MCFORMATS AL_EXT_MULAW "
"AL_EXT_MULAW_MCFORMATS AL_EXT_OFFSET AL_EXT_source_distance_model "
"AL_LOKI_quadriphonic AL_SOFT_buffer_samples AL_SOFT_buffer_sub_data "
"AL_SOFTX_deferred_updates AL_SOFT_direct_channels AL_SOFT_loop_points";
// Mixing Priority Level
ALint RTPrioLevel;
// Output Log File
FILE *LogFile;
// Output Log Level
#ifdef _DEBUG
enum LogLevel LogLevel = LogWarning;
#else
enum LogLevel LogLevel = LogError;
#endif
/* Flag to trap ALC device errors */
static ALCboolean TrapALCError = ALC_FALSE;
/* One-time configuration init control */
static pthread_once_t alc_config_once = PTHREAD_ONCE_INIT;
/* Forced effect that applies to sources that don't have an effect on send 0 */
static ALeffect DefaultEffect;
///////////////////////////////////////////////////////
///////////////////////////////////////////////////////
// ALC Related helper functions
static void ReleaseALC(void);
static void ReleaseThreadCtx(void *ptr);
static void alc_initconfig(void);
#define DO_INITCONFIG() pthread_once(&alc_config_once, alc_initconfig)
#if defined(_WIN32)
static void alc_init(void);
static void alc_deinit(void);
static void alc_deinit_safe(void);
UIntMap TlsDestructor;
#ifndef AL_LIBTYPE_STATIC
BOOL APIENTRY DllMain(HINSTANCE hModule,DWORD ul_reason_for_call,LPVOID lpReserved)
{
ALsizei i;
// Perform actions based on the reason for calling.
switch(ul_reason_for_call)
{
case DLL_PROCESS_ATTACH:
/* Pin the DLL so we won't get unloaded until the process terminates */
GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_PIN | GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS,
(WCHAR*)hModule, &hModule);
InitUIntMap(&TlsDestructor, ~0);
alc_init();
break;
case DLL_THREAD_DETACH:
LockUIntMapRead(&TlsDestructor);
for(i = 0;i < TlsDestructor.size;i++)
{
void *ptr = pthread_getspecific(TlsDestructor.array[i].key);
void (*callback)(void*) = (void(*)(void*))TlsDestructor.array[i].value;
if(ptr && callback)
callback(ptr);
}
UnlockUIntMapRead(&TlsDestructor);
break;
case DLL_PROCESS_DETACH:
if(!lpReserved)
alc_deinit();
else
alc_deinit_safe();
ResetUIntMap(&TlsDestructor);
break;
}
return TRUE;
}
#elif defined(_MSC_VER)
#pragma section(".CRT$XCU",read)
static void alc_constructor(void);
static void alc_destructor(void);
__declspec(allocate(".CRT$XCU")) void (__cdecl* alc_constructor_)(void) = alc_constructor;
static void alc_constructor(void)
{
atexit(alc_destructor);
alc_init();
}
static void alc_destructor(void)
{
alc_deinit();
}
#elif defined(HAVE_GCC_DESTRUCTOR)
static void alc_init(void) __attribute__((constructor));
static void alc_deinit(void) __attribute__((destructor));
#else
#error "No static initialization available on this platform!"
#endif
#elif defined(HAVE_GCC_DESTRUCTOR)
static void alc_init(void) __attribute__((constructor));
static void alc_deinit(void) __attribute__((destructor));
#else
#error "No global initialization available on this platform!"
#endif
static void alc_init(void)
{
const char *str;
LogFile = stderr;
str = getenv("__ALSOFT_HALF_ANGLE_CONES");
if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1))
ConeScale = 1.0f;
str = getenv("__ALSOFT_REVERSE_Z");
if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1))
ZScale = -1.0f;
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;
str = getenv("ALSOFT_TRAP_ALC_ERROR");
if(str && (strcasecmp(str, "true") == 0 || strtol(str, NULL, 0) == 1))
TrapALCError = ALC_TRUE;
}
pthread_key_create(&LocalContext, ReleaseThreadCtx);
InitializeCriticalSection(&ListLock);
ThunkInit();
}
static void alc_deinit_safe(void)
{
ReleaseALC();
FreeHrtf();
FreeALConfig();
ThunkExit();
DeleteCriticalSection(&ListLock);
pthread_key_delete(LocalContext);
if(LogFile != stderr)
fclose(LogFile);
LogFile = NULL;
}
static void alc_deinit(void)
{
int i;
ReleaseALC();
memset(&PlaybackBackend, 0, sizeof(PlaybackBackend));
memset(&CaptureBackend, 0, sizeof(CaptureBackend));
for(i = 0;BackendList[i].Deinit;i++)
BackendList[i].Deinit();
BackendLoopback.Deinit();
alc_deinit_safe();
}
static void alc_initconfig(void)
{
const char *devs, *str;
float valf;
int i, n;
str = getenv("ALSOFT_LOGLEVEL");
if(str)
{
long lvl = strtol(str, NULL, 0);
if(lvl >= NoLog && lvl <= LogRef)
LogLevel = lvl;
}
str = getenv("ALSOFT_LOGFILE");
if(str && str[0])
{
FILE *logfile = fopen(str, "wat");
if(logfile) LogFile = logfile;
else ERR("Failed to open log file '%s'\n", str);
}
ReadALConfig();
InitHrtf();
#ifdef _WIN32
RTPrioLevel = 1;
#else
RTPrioLevel = 0;
#endif
ConfigValueInt(NULL, "rt-prio", &RTPrioLevel);
if(ConfigValueStr(NULL, "resampler", &str))
{
if(strcasecmp(str, "point") == 0 || strcasecmp(str, "none") == 0)
DefaultResampler = PointResampler;
else if(strcasecmp(str, "linear") == 0)
DefaultResampler = LinearResampler;
else if(strcasecmp(str, "cubic") == 0)
DefaultResampler = CubicResampler;
else
{
char *end;
n = strtol(str, &end, 0);
if(*end == '\0' && (n == PointResampler || n == LinearResampler || n == CubicResampler))
DefaultResampler = n;
else
WARN("Invalid resampler: %s\n", str);
}
}
if(!TrapALCError)
TrapALCError = GetConfigValueBool(NULL, "trap-alc-error", ALC_FALSE);
if(!TrapALError)
TrapALError = GetConfigValueBool(NULL, "trap-al-error", AL_FALSE);
if(ConfigValueFloat("reverb", "boost", &valf))
ReverbBoost *= aluPow(10.0f, valf / 20.0f);
EmulateEAXReverb = GetConfigValueBool("reverb", "emulate-eax", AL_FALSE);
if(((devs=getenv("ALSOFT_DRIVERS")) && devs[0]) ||
ConfigValueStr(NULL, "drivers", &devs))
{
int n;
size_t len;
const char *next = devs;
int endlist, delitem;
i = 0;
do {
devs = next;
next = strchr(devs, ',');
delitem = (devs[0] == '-');
if(devs[0] == '-') devs++;
if(!devs[0] || devs[0] == ',')
{
endlist = 0;
continue;
}
endlist = 1;
len = (next ? ((size_t)(next-devs)) : strlen(devs));
for(n = i;BackendList[n].Init;n++)
{
if(len == strlen(BackendList[n].name) &&
strncmp(BackendList[n].name, devs, len) == 0)
{
if(delitem)
{
do {
BackendList[n] = BackendList[n+1];
++n;
} while(BackendList[n].Init);
}
else
{
struct BackendInfo Bkp = BackendList[n];
while(n > i)
{
BackendList[n] = BackendList[n-1];
--n;
}
BackendList[n] = Bkp;
i++;
}
break;
}
}
} while(next++);
if(endlist)
{
BackendList[i].name = NULL;
BackendList[i].Init = NULL;
BackendList[i].Deinit = NULL;
BackendList[i].Probe = NULL;
}
}
for(i = 0;BackendList[i].Init && (!PlaybackBackend.name || !CaptureBackend.name);i++)
{
if(!BackendList[i].Init(&BackendList[i].Funcs))
{
WARN("Failed to initialize backend \"%s\"\n", BackendList[i].name);
continue;
}
TRACE("Initialized backend \"%s\"\n", BackendList[i].name);
if(BackendList[i].Funcs.OpenPlayback && !PlaybackBackend.name)
{
PlaybackBackend = BackendList[i];
TRACE("Added \"%s\" for playback\n", PlaybackBackend.name);
}
if(BackendList[i].Funcs.OpenCapture && !CaptureBackend.name)
{
CaptureBackend = BackendList[i];
TRACE("Added \"%s\" for capture\n", CaptureBackend.name);
}
}
BackendLoopback.Init(&BackendLoopback.Funcs);
if(ConfigValueStr(NULL, "excludefx", &str))
{
size_t len;
const char *next = str;
do {
str = next;
next = strchr(str, ',');
if(!str[0] || next == str)
continue;
len = (next ? ((size_t)(next-str)) : strlen(str));
for(n = 0;EffectList[n].name;n++)
{
if(len == strlen(EffectList[n].name) &&
strncmp(EffectList[n].name, str, len) == 0)
DisabledEffects[EffectList[n].type] = AL_TRUE;
}
} while(next++);
}
InitEffect(&DefaultEffect);
str = getenv("ALSOFT_DEFAULT_REVERB");
if((str && str[0]) || ConfigValueStr(NULL, "default-reverb", &str))
LoadReverbPreset(str, &DefaultEffect);
}
static void LockLists(void)
{
EnterCriticalSection(&ListLock);
}
static void UnlockLists(void)
{
LeaveCriticalSection(&ListLock);
}
static void ProbeList(ALCchar **list, size_t *listsize, enum DevProbe type)
{
DO_INITCONFIG();
LockLists();
free(*list);
*list = NULL;
*listsize = 0;
if(type == ALL_DEVICE_PROBE && PlaybackBackend.Probe)
PlaybackBackend.Probe(type);
else if(type == CAPTURE_DEVICE_PROBE && CaptureBackend.Probe)
CaptureBackend.Probe(type);
UnlockLists();
}
static void ProbeAllDeviceList(void)
{ ProbeList(&alcAllDeviceList, &alcAllDeviceListSize, ALL_DEVICE_PROBE); }
static void ProbeCaptureDeviceList(void)
{ ProbeList(&alcCaptureDeviceList, &alcCaptureDeviceListSize, CAPTURE_DEVICE_PROBE); }
static void AppendList(const ALCchar *name, ALCchar **List, size_t *ListSize)
{
size_t len = strlen(name);
void *temp;
if(len == 0)
return;
temp = realloc(*List, (*ListSize) + len + 2);
if(!temp)
{
ERR("Realloc failed to add %s!\n", name);
return;
}
*List = temp;
memcpy((*List)+(*ListSize), name, len+1);
*ListSize += len+1;
(*List)[*ListSize] = 0;
}
#define DECL_APPEND_LIST_FUNC(type) \
void Append##type##List(const ALCchar *name) \
{ AppendList(name, &alc##type##List, &alc##type##ListSize); }
DECL_APPEND_LIST_FUNC(AllDevice)
DECL_APPEND_LIST_FUNC(CaptureDevice)
#undef DECL_APPEND_LIST_FUNC
/* Sets the default channel order used by most non-WaveFormatEx-based APIs */
void SetDefaultChannelOrder(ALCdevice *device)
{
switch(device->FmtChans)
{
case DevFmtX51: device->DevChannels[0] = FRONT_LEFT;
device->DevChannels[1] = FRONT_RIGHT;
device->DevChannels[2] = BACK_LEFT;
device->DevChannels[3] = BACK_RIGHT;
device->DevChannels[4] = FRONT_CENTER;
device->DevChannels[5] = LFE;
return;
case DevFmtX71: device->DevChannels[0] = FRONT_LEFT;
device->DevChannels[1] = FRONT_RIGHT;
device->DevChannels[2] = BACK_LEFT;
device->DevChannels[3] = BACK_RIGHT;
device->DevChannels[4] = FRONT_CENTER;
device->DevChannels[5] = LFE;
device->DevChannels[6] = SIDE_LEFT;
device->DevChannels[7] = SIDE_RIGHT;
return;
/* Same as WFX order */
case DevFmtMono:
case DevFmtStereo:
case DevFmtQuad:
case DevFmtX51Side:
case DevFmtX61:
break;
}
SetDefaultWFXChannelOrder(device);
}
/* Sets the default order used by WaveFormatEx */
void SetDefaultWFXChannelOrder(ALCdevice *device)
{
switch(device->FmtChans)
{
case DevFmtMono: device->DevChannels[0] = FRONT_CENTER; break;
case DevFmtStereo: device->DevChannels[0] = FRONT_LEFT;
device->DevChannels[1] = FRONT_RIGHT; break;
case DevFmtQuad: device->DevChannels[0] = FRONT_LEFT;
device->DevChannels[1] = FRONT_RIGHT;
device->DevChannels[2] = BACK_LEFT;
device->DevChannels[3] = BACK_RIGHT; break;
case DevFmtX51: device->DevChannels[0] = FRONT_LEFT;
device->DevChannels[1] = FRONT_RIGHT;
device->DevChannels[2] = FRONT_CENTER;
device->DevChannels[3] = LFE;
device->DevChannels[4] = BACK_LEFT;
device->DevChannels[5] = BACK_RIGHT; break;
case DevFmtX51Side: device->DevChannels[0] = FRONT_LEFT;
device->DevChannels[1] = FRONT_RIGHT;
device->DevChannels[2] = FRONT_CENTER;
device->DevChannels[3] = LFE;
device->DevChannels[4] = SIDE_LEFT;
device->DevChannels[5] = SIDE_RIGHT; break;
case DevFmtX61: device->DevChannels[0] = FRONT_LEFT;
device->DevChannels[1] = FRONT_RIGHT;
device->DevChannels[2] = FRONT_CENTER;
device->DevChannels[3] = LFE;
device->DevChannels[4] = BACK_CENTER;
device->DevChannels[5] = SIDE_LEFT;
device->DevChannels[6] = SIDE_RIGHT; break;
case DevFmtX71: device->DevChannels[0] = FRONT_LEFT;
device->DevChannels[1] = FRONT_RIGHT;
device->DevChannels[2] = FRONT_CENTER;
device->DevChannels[3] = LFE;
device->DevChannels[4] = BACK_LEFT;
device->DevChannels[5] = BACK_RIGHT;
device->DevChannels[6] = SIDE_LEFT;
device->DevChannels[7] = SIDE_RIGHT; break;
}
}
const ALCchar *DevFmtTypeString(enum DevFmtType type)
{
switch(type)
{
case DevFmtByte: return "Signed Byte";
case DevFmtUByte: return "Unsigned Byte";
case DevFmtShort: return "Signed Short";
case DevFmtUShort: return "Unsigned Short";
case DevFmtInt: return "Signed Int";
case DevFmtUInt: return "Unsigned Int";
case DevFmtFloat: return "Float";
}
return "(unknown type)";
}
const ALCchar *DevFmtChannelsString(enum DevFmtChannels chans)
{
switch(chans)
{
case DevFmtMono: return "Mono";
case DevFmtStereo: return "Stereo";
case DevFmtQuad: return "Quadraphonic";
case DevFmtX51: return "5.1 Surround";
case DevFmtX51Side: return "5.1 Side";
case DevFmtX61: return "6.1 Surround";
case DevFmtX71: return "7.1 Surround";
}
return "(unknown channels)";
}
ALuint BytesFromDevFmt(enum DevFmtType type)
{
switch(type)
{
case DevFmtByte: return sizeof(ALbyte);
case DevFmtUByte: return sizeof(ALubyte);
case DevFmtShort: return sizeof(ALshort);
case DevFmtUShort: return sizeof(ALushort);
case DevFmtInt: return sizeof(ALint);
case DevFmtUInt: return sizeof(ALuint);
case DevFmtFloat: return sizeof(ALfloat);
}
return 0;
}
ALuint ChannelsFromDevFmt(enum DevFmtChannels chans)
{
switch(chans)
{
case DevFmtMono: return 1;
case DevFmtStereo: return 2;
case DevFmtQuad: return 4;
case DevFmtX51: return 6;
case DevFmtX51Side: return 6;
case DevFmtX61: return 7;
case DevFmtX71: return 8;
}
return 0;
}
static ALboolean DecomposeDevFormat(ALenum format, enum DevFmtChannels *chans,
enum DevFmtType *type)
{
static const struct {
ALenum format;
enum DevFmtChannels channels;
enum DevFmtType type;
} list[] = {
{ AL_FORMAT_MONO8, DevFmtMono, DevFmtUByte },
{ AL_FORMAT_MONO16, DevFmtMono, DevFmtShort },
{ AL_FORMAT_MONO_FLOAT32, DevFmtMono, DevFmtFloat },
{ AL_FORMAT_STEREO8, DevFmtStereo, DevFmtUByte },
{ AL_FORMAT_STEREO16, DevFmtStereo, DevFmtShort },
{ AL_FORMAT_STEREO_FLOAT32, DevFmtStereo, DevFmtFloat },
{ AL_FORMAT_QUAD8, DevFmtQuad, DevFmtUByte },
{ AL_FORMAT_QUAD16, DevFmtQuad, DevFmtShort },
{ AL_FORMAT_QUAD32, DevFmtQuad, DevFmtFloat },
{ AL_FORMAT_51CHN8, DevFmtX51, DevFmtUByte },
{ AL_FORMAT_51CHN16, DevFmtX51, DevFmtShort },
{ AL_FORMAT_51CHN32, DevFmtX51, DevFmtFloat },
{ AL_FORMAT_61CHN8, DevFmtX61, DevFmtUByte },
{ AL_FORMAT_61CHN16, DevFmtX61, DevFmtShort },
{ AL_FORMAT_61CHN32, DevFmtX61, DevFmtFloat },
{ AL_FORMAT_71CHN8, DevFmtX71, DevFmtUByte },
{ AL_FORMAT_71CHN16, DevFmtX71, DevFmtShort },
{ AL_FORMAT_71CHN32, DevFmtX71, DevFmtFloat },
};
ALuint i;
for(i = 0;i < COUNTOF(list);i++)
{
if(list[i].format == format)
{
*chans = list[i].channels;
*type = list[i].type;
return AL_TRUE;
}
}
return AL_FALSE;
}
static ALCboolean IsValidALCType(ALCenum type)
{
switch(type)
{
case ALC_BYTE_SOFT:
case ALC_UNSIGNED_BYTE_SOFT:
case ALC_SHORT_SOFT:
case ALC_UNSIGNED_SHORT_SOFT:
case ALC_INT_SOFT:
case ALC_UNSIGNED_INT_SOFT:
case ALC_FLOAT_SOFT:
return ALC_TRUE;
}
return ALC_FALSE;
}
static ALCboolean IsValidALCChannels(ALCenum channels)
{
switch(channels)
{
case ALC_MONO_SOFT:
case ALC_STEREO_SOFT:
case ALC_QUAD_SOFT:
case ALC_5POINT1_SOFT:
case ALC_6POINT1_SOFT:
case ALC_7POINT1_SOFT:
return ALC_TRUE;
}
return ALC_FALSE;
}
/* alcSetError
*
* Stores the latest ALC Error
*/
static void alcSetError(ALCdevice *device, ALCenum errorCode)
{
if(TrapALCError)
{
#ifdef _WIN32
/* DebugBreak() will cause an exception if there is no debugger */
if(IsDebuggerPresent())
DebugBreak();
#elif defined(SIGTRAP)
raise(SIGTRAP);
#endif
}
if(device)
device->LastError = errorCode;
else
g_eLastNullDeviceError = errorCode;
}
/* UpdateDeviceParams
*
* Updates device parameters according to the attribute list (caller is
* responsible for holding the list lock).
*/
static ALCenum UpdateDeviceParams(ALCdevice *device, const ALCint *attrList)
{
ALCcontext *context;
enum DevFmtChannels oldChans;
enum DevFmtType oldType;
ALCuint oldFreq;
int oldMode;
ALuint i;
// Check for attributes
if(device->Type == Loopback)
{
enum {
GotFreq = 1<<0,
GotChans = 1<<1,
GotType = 1<<2,
GotAll = GotFreq|GotChans|GotType
};
ALCuint freq, numMono, numStereo, numSends;
enum DevFmtChannels schans;
enum DevFmtType stype;
ALCuint attrIdx = 0;
ALCint gotFmt = 0;
if(!attrList)
{
WARN("Missing attributes for loopback device\n");
return ALC_INVALID_VALUE;
}
numMono = device->NumMonoSources;
numStereo = device->NumStereoSources;
numSends = device->NumAuxSends;
schans = device->FmtChans;
stype = device->FmtType;
freq = device->Frequency;
while(attrList[attrIdx])
{
if(attrList[attrIdx] == ALC_FORMAT_CHANNELS_SOFT)
{
ALCint val = attrList[attrIdx + 1];
if(!IsValidALCChannels(val) || !ChannelsFromDevFmt(val))
return ALC_INVALID_VALUE;
schans = val;
gotFmt |= GotChans;
}
if(attrList[attrIdx] == ALC_FORMAT_TYPE_SOFT)
{
ALCint val = attrList[attrIdx + 1];
if(!IsValidALCType(val) || !BytesFromDevFmt(val))
return ALC_INVALID_VALUE;
stype = val;
gotFmt |= GotType;
}
if(attrList[attrIdx] == ALC_FREQUENCY)
{
freq = attrList[attrIdx + 1];
if(freq < MIN_OUTPUT_RATE)
return ALC_INVALID_VALUE;
gotFmt |= GotFreq;
}
if(attrList[attrIdx] == ALC_STEREO_SOURCES)
{
numStereo = attrList[attrIdx + 1];
if(numStereo > device->MaxNoOfSources)
numStereo = device->MaxNoOfSources;
numMono = device->MaxNoOfSources - numStereo;
}
if(attrList[attrIdx] == ALC_MAX_AUXILIARY_SENDS)
numSends = attrList[attrIdx + 1];
attrIdx += 2;
}
if(gotFmt != GotAll)
{
WARN("Missing format for loopback device\n");
return ALC_INVALID_VALUE;
}
ConfigValueUInt(NULL, "sends", &numSends);
numSends = minu(MAX_SENDS, numSends);
if((device->Flags&DEVICE_RUNNING))
ALCdevice_StopPlayback(device);
device->Flags &= ~DEVICE_RUNNING;
device->Frequency = freq;
device->FmtChans = schans;
device->FmtType = stype;
device->NumMonoSources = numMono;
device->NumStereoSources = numStereo;
device->NumAuxSends = numSends;
}
else if(attrList && attrList[0])
{
ALCuint freq, numMono, numStereo, numSends;
ALCuint attrIdx = 0;
/* If a context is already running on the device, stop playback so the
* device attributes can be updated. */
if((device->Flags&DEVICE_RUNNING))
ALCdevice_StopPlayback(device);
device->Flags &= ~DEVICE_RUNNING;
freq = device->Frequency;
numMono = device->NumMonoSources;
numStereo = device->NumStereoSources;
numSends = device->NumAuxSends;
while(attrList[attrIdx])
{
if(attrList[attrIdx] == ALC_FREQUENCY)
{
freq = attrList[attrIdx + 1];
device->Flags |= DEVICE_FREQUENCY_REQUEST;
}
if(attrList[attrIdx] == ALC_STEREO_SOURCES)
{
numStereo = attrList[attrIdx + 1];
if(numStereo > device->MaxNoOfSources)
numStereo = device->MaxNoOfSources;
numMono = device->MaxNoOfSources - numStereo;
}
if(attrList[attrIdx] == ALC_MAX_AUXILIARY_SENDS)
numSends = attrList[attrIdx + 1];
attrIdx += 2;
}
ConfigValueUInt(NULL, "frequency", &freq);
freq = maxu(freq, MIN_OUTPUT_RATE);
ConfigValueUInt(NULL, "sends", &numSends);
numSends = minu(MAX_SENDS, numSends);
device->UpdateSize = (ALuint64)device->UpdateSize * freq /
device->Frequency;
device->Frequency = freq;
device->NumMonoSources = numMono;
device->NumStereoSources = numStereo;
device->NumAuxSends = numSends;
}
if((device->Flags&DEVICE_RUNNING))
return ALC_NO_ERROR;
oldFreq = device->Frequency;
oldChans = device->FmtChans;
oldType = device->FmtType;
TRACE("Format pre-setup: %s%s, %s%s, %uhz%s, %u update size x%d\n",
DevFmtChannelsString(device->FmtChans),
(device->Flags&DEVICE_CHANNELS_REQUEST)?" (requested)":"",
DevFmtTypeString(device->FmtType),
(device->Flags&DEVICE_SAMPLE_TYPE_REQUEST)?" (requested)":"",
device->Frequency,
(device->Flags&DEVICE_FREQUENCY_REQUEST)?" (requested)":"",
device->UpdateSize, device->NumUpdates);
if(ALCdevice_ResetPlayback(device) == ALC_FALSE)
return ALC_INVALID_DEVICE;
if(device->FmtChans != oldChans && (device->Flags&DEVICE_CHANNELS_REQUEST))
{
ERR("Failed to set %s, got %s instead\n", DevFmtChannelsString(oldChans),
DevFmtChannelsString(device->FmtChans));
device->Flags &= ~DEVICE_CHANNELS_REQUEST;
}
if(device->FmtType != oldType && (device->Flags&DEVICE_SAMPLE_TYPE_REQUEST))
{
ERR("Failed to set %s, got %s instead\n", DevFmtTypeString(oldType),
DevFmtTypeString(device->FmtType));
device->Flags &= ~DEVICE_SAMPLE_TYPE_REQUEST;
}
if(device->Frequency != oldFreq && (device->Flags&DEVICE_FREQUENCY_REQUEST))
{
ERR("Failed to set %uhz, got %uhz instead\n", oldFreq, device->Frequency);
device->Flags &= ~DEVICE_FREQUENCY_REQUEST;
}
TRACE("Format post-setup: %s, %s, %uhz, %u update size x%d\n",
DevFmtChannelsString(device->FmtChans),
DevFmtTypeString(device->FmtType), device->Frequency,
device->UpdateSize, device->NumUpdates);
aluInitPanning(device);
for(i = 0;i < MAXCHANNELS;i++)
{
device->ClickRemoval[i] = 0.0f;
device->PendingClicks[i] = 0.0f;
}
device->Hrtf = NULL;
if(device->Type != Loopback && GetConfigValueBool(NULL, "hrtf", AL_FALSE))
device->Hrtf = GetHrtf(device);
TRACE("HRTF %s\n", device->Hrtf?"enabled":"disabled");
if(!device->Hrtf && device->Bs2bLevel > 0 && device->Bs2bLevel <= 6)
{
if(!device->Bs2b)
{
device->Bs2b = calloc(1, sizeof(*device->Bs2b));
bs2b_clear(device->Bs2b);
}
bs2b_set_srate(device->Bs2b, device->Frequency);
bs2b_set_level(device->Bs2b, device->Bs2bLevel);
TRACE("BS2B level %d\n", device->Bs2bLevel);
}
else
{
free(device->Bs2b);
device->Bs2b = NULL;
TRACE("BS2B disabled\n");
}
device->Flags &= ~DEVICE_DUPLICATE_STEREO;
switch(device->FmtChans)
{
case DevFmtMono:
case DevFmtStereo:
break;
case DevFmtQuad:
case DevFmtX51:
case DevFmtX51Side:
case DevFmtX61:
case DevFmtX71:
if(GetConfigValueBool(NULL, "stereodup", AL_TRUE))
device->Flags |= DEVICE_DUPLICATE_STEREO;
break;
}
TRACE("Stereo duplication %s\n", (device->Flags&DEVICE_DUPLICATE_STEREO)?"enabled":"disabled");
oldMode = SetMixerFPUMode();
LockDevice(device);
context = device->ContextList;
while(context)
{
ALsizei pos;
context->UpdateSources = AL_FALSE;
LockUIntMapRead(&context->EffectSlotMap);
for(pos = 0;pos < context->EffectSlotMap.size;pos++)
{
ALeffectslot *slot = context->EffectSlotMap.array[pos].value;
if(ALeffectState_DeviceUpdate(slot->EffectState, device) == AL_FALSE)
{
UnlockUIntMapRead(&context->EffectSlotMap);
UnlockDevice(device);
RestoreFPUMode(oldMode);
return ALC_INVALID_DEVICE;
}
slot->NeedsUpdate = AL_FALSE;
ALeffectState_Update(slot->EffectState, device, slot);
}
UnlockUIntMapRead(&context->EffectSlotMap);
LockUIntMapRead(&context->SourceMap);
for(pos = 0;pos < context->SourceMap.size;pos++)
{
ALsource *source = context->SourceMap.array[pos].value;
ALuint s = device->NumAuxSends;
while(s < MAX_SENDS)
{
if(source->Send[s].Slot)
DecrementRef(&source->Send[s].Slot->ref);
source->Send[s].Slot = NULL;
source->Send[s].WetGain = 1.0f;
source->Send[s].WetGainHF = 1.0f;
s++;
}
source->NeedsUpdate = AL_FALSE;
ALsource_Update(source, context);
}
UnlockUIntMapRead(&context->SourceMap);
context = context->next;
}
if(device->DefaultSlot)
{
ALeffectslot *slot = device->DefaultSlot;
if(ALeffectState_DeviceUpdate(slot->EffectState, device) == AL_FALSE)
{
UnlockDevice(device);
RestoreFPUMode(oldMode);
return ALC_INVALID_DEVICE;
}
slot->NeedsUpdate = AL_FALSE;
ALeffectState_Update(slot->EffectState, device, slot);
}
UnlockDevice(device);
RestoreFPUMode(oldMode);
if(ALCdevice_StartPlayback(device) == ALC_FALSE)
return ALC_INVALID_DEVICE;
device->Flags |= DEVICE_RUNNING;
return ALC_NO_ERROR;
}
/* FreeDevice
*
* Frees the device structure, and destroys any objects the app failed to
* delete. Called once there's no more references on the device.
*/
static ALCvoid FreeDevice(ALCdevice *device)
{
TRACE("%p\n", device);
if(device->DefaultSlot)
{
ALeffectState_Destroy(device->DefaultSlot->EffectState);
device->DefaultSlot->EffectState = NULL;
}
if(device->BufferMap.size > 0)
{
WARN("(%p) Deleting %d Buffer(s)\n", device, device->BufferMap.size);
ReleaseALBuffers(device);
}
ResetUIntMap(&device->BufferMap);
if(device->EffectMap.size > 0)
{
WARN("(%p) Deleting %d Effect(s)\n", device, device->EffectMap.size);
ReleaseALEffects(device);
}
ResetUIntMap(&device->EffectMap);
if(device->FilterMap.size > 0)
{
WARN("(%p) Deleting %d Filter(s)\n", device, device->FilterMap.size);
ReleaseALFilters(device);
}
ResetUIntMap(&device->FilterMap);
free(device->Bs2b);
device->Bs2b = NULL;
free(device->szDeviceName);
device->szDeviceName = NULL;
DeleteCriticalSection(&device->Mutex);
free(device);
}
void ALCdevice_IncRef(ALCdevice *device)
{
RefCount ref;
ref = IncrementRef(&device->ref);
TRACEREF("%p increasing refcount to %u\n", device, ref);
}
void ALCdevice_DecRef(ALCdevice *device)
{
RefCount ref;
ref = DecrementRef(&device->ref);
TRACEREF("%p decreasing refcount to %u\n", device, ref);
if(ref == 0) FreeDevice(device);
}
/* VerifyDevice
*
* Checks if the device handle is valid, and increments its ref count if so.
*/
static ALCdevice *VerifyDevice(ALCdevice *device)
{
ALCdevice *tmpDevice;
if(!device)
return NULL;
LockLists();
tmpDevice = DeviceList;
while(tmpDevice && tmpDevice != device)
tmpDevice = tmpDevice->next;
if(tmpDevice)
ALCdevice_IncRef(tmpDevice);
UnlockLists();
return tmpDevice;
}
/* InitContext
*
* Initializes context variables
*/
static ALvoid InitContext(ALCcontext *pContext)
{
ALint i, j;
//Initialise listener
pContext->Listener.Gain = 1.0f;
pContext->Listener.MetersPerUnit = 1.0f;
pContext->Listener.Position[0] = 0.0f;
pContext->Listener.Position[1] = 0.0f;
pContext->Listener.Position[2] = 0.0f;
pContext->Listener.Velocity[0] = 0.0f;
pContext->Listener.Velocity[1] = 0.0f;
pContext->Listener.Velocity[2] = 0.0f;
pContext->Listener.Forward[0] = 0.0f;
pContext->Listener.Forward[1] = 0.0f;
pContext->Listener.Forward[2] = -1.0f;
pContext->Listener.Up[0] = 0.0f;
pContext->Listener.Up[1] = 1.0f;
pContext->Listener.Up[2] = 0.0f;
for(i = 0;i < 4;i++)
{
for(j = 0;j < 4;j++)
pContext->Listener.Matrix[i][j] = ((i==j) ? 1.0f : 0.0f);
}
//Validate pContext
pContext->LastError = AL_NO_ERROR;
pContext->UpdateSources = AL_FALSE;
pContext->ActiveSourceCount = 0;
InitUIntMap(&pContext->SourceMap, pContext->Device->MaxNoOfSources);
InitUIntMap(&pContext->EffectSlotMap, pContext->Device->AuxiliaryEffectSlotMax);
//Set globals
pContext->DistanceModel = AL_INVERSE_DISTANCE_CLAMPED;
pContext->SourceDistanceModel = AL_FALSE;
pContext->DopplerFactor = 1.0f;
pContext->DopplerVelocity = 1.0f;
pContext->flSpeedOfSound = SPEEDOFSOUNDMETRESPERSEC;
pContext->DeferUpdates = AL_FALSE;
pContext->ExtensionList = alExtList;
}
/* FreeContext
*
* Cleans up the context, and destroys any remaining objects the app failed to
* delete. Called once there's no more references on the context.
*/
static ALCvoid FreeContext(ALCcontext *context)
{
TRACE("%p\n", context);
if(context->SourceMap.size > 0)
{
ERR("(%p) Deleting %d Source(s)\n", context, context->SourceMap.size);
ReleaseALSources(context);
}
ResetUIntMap(&context->SourceMap);
if(context->EffectSlotMap.size > 0)
{
ERR("(%p) Deleting %d AuxiliaryEffectSlot(s)\n", context, context->EffectSlotMap.size);
ReleaseALAuxiliaryEffectSlots(context);
}
ResetUIntMap(&context->EffectSlotMap);
context->ActiveSourceCount = 0;
free(context->ActiveSources);
context->ActiveSources = NULL;
context->MaxActiveSources = 0;
context->ActiveEffectSlotCount = 0;
free(context->ActiveEffectSlots);
context->ActiveEffectSlots = NULL;
context->MaxActiveEffectSlots = 0;
ALCdevice_DecRef(context->Device);
context->Device = NULL;
//Invalidate context
memset(context, 0, sizeof(ALCcontext));
free(context);
}
/* ReleaseContext
*
* Removes the context reference from the given device and removes it from
* being current on the running thread or globally.
*/
static void ReleaseContext(ALCcontext *context, ALCdevice *device)
{
ALCcontext *volatile*tmp_ctx;
if(pthread_getspecific(LocalContext) == context)
{
WARN("%p released while current on thread\n", context);
pthread_setspecific(LocalContext, NULL);
ALCcontext_DecRef(context);
}
if(CompExchangePtr((XchgPtr*)&GlobalContext, context, NULL))
ALCcontext_DecRef(context);
LockDevice(device);
tmp_ctx = &device->ContextList;
while(*tmp_ctx)
{
if(CompExchangePtr((XchgPtr*)tmp_ctx, context, context->next))
break;
tmp_ctx = &(*tmp_ctx)->next;
}
UnlockDevice(device);
ALCcontext_DecRef(context);
}
void ALCcontext_IncRef(ALCcontext *context)
{
RefCount ref;
ref = IncrementRef(&context->ref);
TRACEREF("%p increasing refcount to %u\n", context, ref);
}
void ALCcontext_DecRef(ALCcontext *context)
{
RefCount ref;
ref = DecrementRef(&context->ref);
TRACEREF("%p decreasing refcount to %u\n", context, ref);
if(ref == 0) FreeContext(context);
}
static void ReleaseThreadCtx(void *ptr)
{
WARN("%p current for thread being destroyed\n", ptr);
ALCcontext_DecRef(ptr);
}
/* VerifyContext
*
* Checks that the given context is valid, and increments its reference count.
*/
static ALCcontext *VerifyContext(ALCcontext *context)
{
ALCdevice *dev;
LockLists();
dev = DeviceList;
while(dev)
{
ALCcontext *tmp_ctx = dev->ContextList;
while(tmp_ctx)
{
if(tmp_ctx == context)
{
ALCcontext_IncRef(tmp_ctx);
UnlockLists();
return tmp_ctx;
}
tmp_ctx = tmp_ctx->next;
}
dev = dev->next;
}
UnlockLists();
return NULL;
}
/* GetContextRef
*
* Returns the currently active context, and adds a reference without locking
* it.
*/
ALCcontext *GetContextRef(void)
{
ALCcontext *context;
context = pthread_getspecific(LocalContext);
if(context)
ALCcontext_IncRef(context);
else
{
LockLists();
context = GlobalContext;
if(context)
ALCcontext_IncRef(context);
UnlockLists();
}
return context;
}
///////////////////////////////////////////////////////
///////////////////////////////////////////////////////
// ALC Functions calls
// This should probably move to another c file but for now ...
ALC_API ALCdevice* ALC_APIENTRY alcCaptureOpenDevice(const ALCchar *deviceName, ALCuint frequency, ALCenum format, ALCsizei SampleSize)
{
ALCdevice *device = NULL;
ALCenum err;
DO_INITCONFIG();
if(!CaptureBackend.name)
{
alcSetError(NULL, ALC_INVALID_VALUE);
return NULL;
}
if(SampleSize <= 0)
{
alcSetError(NULL, ALC_INVALID_VALUE);
return NULL;
}
if(deviceName && (!deviceName[0] || strcasecmp(deviceName, alcDefaultName) == 0 || strcasecmp(deviceName, "openal-soft") == 0))
deviceName = NULL;
device = calloc(1, sizeof(ALCdevice));
if(!device)
{
alcSetError(NULL, ALC_OUT_OF_MEMORY);
return NULL;
}
//Validate device
device->Funcs = &CaptureBackend.Funcs;
device->ref = 1;
device->Connected = ALC_TRUE;
device->Type = Capture;
InitializeCriticalSection(&device->Mutex);
InitUIntMap(&device->BufferMap, ~0);
InitUIntMap(&device->EffectMap, ~0);
InitUIntMap(&device->FilterMap, ~0);
device->szDeviceName = NULL;
device->Flags |= DEVICE_FREQUENCY_REQUEST;
device->Frequency = frequency;
device->Flags |= DEVICE_CHANNELS_REQUEST | DEVICE_SAMPLE_TYPE_REQUEST;
if(DecomposeDevFormat(format, &device->FmtChans, &device->FmtType) == AL_FALSE)
{
DeleteCriticalSection(&device->Mutex);
free(device);
alcSetError(NULL, ALC_INVALID_ENUM);
return NULL;
}
device->UpdateSize = SampleSize;
device->NumUpdates = 1;
LockLists();
if((err=ALCdevice_OpenCapture(device, deviceName)) != ALC_NO_ERROR)
{
UnlockLists();
DeleteCriticalSection(&device->Mutex);
free(device);
alcSetError(NULL, err);
return NULL;
}
UnlockLists();
do {
device->next = DeviceList;
} while(!CompExchangePtr((XchgPtr*)&DeviceList, device->next, device));
TRACE("Created device %p\n", device);
return device;
}
ALC_API ALCboolean ALC_APIENTRY alcCaptureCloseDevice(ALCdevice *pDevice)
{
ALCdevice *volatile*list;
LockLists();
list = &DeviceList;
while(*list && *list != pDevice)
list = &(*list)->next;
if(!*list || (*list)->Type != Capture)
{
alcSetError(*list, ALC_INVALID_DEVICE);
UnlockLists();
return ALC_FALSE;
}
*list = (*list)->next;
UnlockLists();
ALCdevice_CloseCapture(pDevice);
ALCdevice_DecRef(pDevice);
return ALC_TRUE;
}
ALC_API void ALC_APIENTRY alcCaptureStart(ALCdevice *device)
{
LockLists();
if(!(device=VerifyDevice(device)) || device->Type != Capture)
{
UnlockLists();
alcSetError(device, ALC_INVALID_DEVICE);
if(device) ALCdevice_DecRef(device);
return;
}
if(device->Connected)
{
if(!(device->Flags&DEVICE_RUNNING))
ALCdevice_StartCapture(device);
device->Flags |= DEVICE_RUNNING;
}
UnlockLists();
ALCdevice_DecRef(device);
}
ALC_API void ALC_APIENTRY alcCaptureStop(ALCdevice *device)
{
LockLists();
if(!(device=VerifyDevice(device)) || device->Type != Capture)
{
UnlockLists();
alcSetError(device, ALC_INVALID_DEVICE);
if(device) ALCdevice_DecRef(device);
return;
}
if((device->Flags&DEVICE_RUNNING))
ALCdevice_StopCapture(device);
device->Flags &= ~DEVICE_RUNNING;
UnlockLists();
ALCdevice_DecRef(device);
}
ALC_API void ALC_APIENTRY alcCaptureSamples(ALCdevice *device, ALCvoid *buffer, ALCsizei samples)
{
ALCenum err = ALC_INVALID_DEVICE;
LockLists();
if((device=VerifyDevice(device)) != NULL && device->Type == Capture)
{
err = ALC_INVALID_VALUE;
if(samples >= 0 && ALCdevice_AvailableSamples(device) >= (ALCuint)samples)
err = ALCdevice_CaptureSamples(device, buffer, samples);
}
UnlockLists();
if(err != ALC_NO_ERROR)
alcSetError(device, err);
if(device) ALCdevice_DecRef(device);
}
/*
alcGetError
Return last ALC generated error code
*/
ALC_API ALCenum ALC_APIENTRY alcGetError(ALCdevice *device)
{
ALCenum errorCode;
if(VerifyDevice(device))
{
errorCode = ExchangeInt(&device->LastError, ALC_NO_ERROR);
ALCdevice_DecRef(device);
}
else
errorCode = ExchangeInt(&g_eLastNullDeviceError, ALC_NO_ERROR);
return errorCode;
}
/* alcSuspendContext
*
* Not functional
*/
ALC_API ALCvoid ALC_APIENTRY alcSuspendContext(ALCcontext *Context)
{
(void)Context;
}
/* alcProcessContext
*
* Not functional
*/
ALC_API ALCvoid ALC_APIENTRY alcProcessContext(ALCcontext *Context)
{
(void)Context;
}
/* alcGetString
*
* Returns information about the Device, and error strings
*/
ALC_API const ALCchar* ALC_APIENTRY alcGetString(ALCdevice *pDevice,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(pDevice))
{
value = pDevice->szDeviceName;
ALCdevice_DecRef(pDevice);
}
else
{
ProbeAllDeviceList();
value = alcAllDeviceList;
}
break;
case ALC_CAPTURE_DEVICE_SPECIFIER:
if(VerifyDevice(pDevice))
{
value = pDevice->szDeviceName;
ALCdevice_DecRef(pDevice);
}
else
{
ProbeCaptureDeviceList();
value = alcCaptureDeviceList;
}
break;
/* Default devices are always first in the list */
case ALC_DEFAULT_DEVICE_SPECIFIER:
value = alcDefaultName;
break;
case ALC_DEFAULT_ALL_DEVICES_SPECIFIER:
if(!alcAllDeviceList)
ProbeAllDeviceList();
pDevice = VerifyDevice(pDevice);
free(alcDefaultAllDeviceSpecifier);
alcDefaultAllDeviceSpecifier = strdup(alcAllDeviceList ?
alcAllDeviceList : "");
if(!alcDefaultAllDeviceSpecifier)
alcSetError(pDevice, ALC_OUT_OF_MEMORY);
value = alcDefaultAllDeviceSpecifier;
if(pDevice) ALCdevice_DecRef(pDevice);
break;
case ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER:
if(!alcCaptureDeviceList)
ProbeCaptureDeviceList();
pDevice = VerifyDevice(pDevice);
free(alcCaptureDefaultDeviceSpecifier);
alcCaptureDefaultDeviceSpecifier = strdup(alcCaptureDeviceList ?
alcCaptureDeviceList : "");
if(!alcCaptureDefaultDeviceSpecifier)
alcSetError(pDevice, ALC_OUT_OF_MEMORY);
value = alcCaptureDefaultDeviceSpecifier;
if(pDevice) ALCdevice_DecRef(pDevice);
break;
case ALC_EXTENSIONS:
if(!VerifyDevice(pDevice))
value = alcNoDeviceExtList;
else
{
value = alcExtensionList;
ALCdevice_DecRef(pDevice);
}
break;
default:
pDevice = VerifyDevice(pDevice);
alcSetError(pDevice, ALC_INVALID_ENUM);
if(pDevice) ALCdevice_DecRef(pDevice);
break;
}
return value;
}
/* alcGetIntegerv
*
* Returns information about the Device and the version of Open AL
*/
ALC_API ALCvoid ALC_APIENTRY alcGetIntegerv(ALCdevice *device,ALCenum param,ALsizei size,ALCint *data)
{
device = VerifyDevice(device);
if(size == 0 || data == NULL)
{
alcSetError(device, ALC_INVALID_VALUE);
if(device) ALCdevice_DecRef(device);
return;
}
if(!device)
{
switch(param)
{
case ALC_MAJOR_VERSION:
*data = alcMajorVersion;
break;
case ALC_MINOR_VERSION:
*data = alcMinorVersion;
break;
case ALC_ATTRIBUTES_SIZE:
case ALC_ALL_ATTRIBUTES:
case ALC_FREQUENCY:
case ALC_REFRESH:
case ALC_SYNC:
case ALC_MONO_SOURCES:
case ALC_STEREO_SOURCES:
case ALC_CAPTURE_SAMPLES:
case ALC_FORMAT_CHANNELS_SOFT:
case ALC_FORMAT_TYPE_SOFT:
alcSetError(NULL, ALC_INVALID_DEVICE);
break;
default:
alcSetError(NULL, ALC_INVALID_ENUM);
break;
}
}
else if(device->Type == Capture)
{
switch(param)
{
case ALC_CAPTURE_SAMPLES:
LockLists();
/* Re-validate the device since it may have been closed */
ALCdevice_DecRef(device);
if((device=VerifyDevice(device)) != NULL)
*data = ALCdevice_AvailableSamples(device);
else
alcSetError(NULL, ALC_INVALID_DEVICE);
UnlockLists();
break;
case ALC_CONNECTED:
*data = device->Connected;
break;
default:
alcSetError(device, ALC_INVALID_ENUM);
break;
}
}
else /* render device */
{
switch(param)
{
case ALC_MAJOR_VERSION:
*data = alcMajorVersion;
break;
case ALC_MINOR_VERSION:
*data = alcMinorVersion;
break;
case ALC_EFX_MAJOR_VERSION:
*data = alcEFXMajorVersion;
break;
case ALC_EFX_MINOR_VERSION:
*data = alcEFXMinorVersion;
break;
case ALC_ATTRIBUTES_SIZE:
*data = 13;
break;
case ALC_ALL_ATTRIBUTES:
if(size < 13)
alcSetError(device, ALC_INVALID_VALUE);
else
{
int i = 0;
data[i++] = ALC_FREQUENCY;
data[i++] = device->Frequency;
if(device->Type != Loopback)
{
data[i++] = ALC_REFRESH;
data[i++] = device->Frequency / device->UpdateSize;
data[i++] = ALC_SYNC;
data[i++] = ALC_FALSE;
}
else
{
data[i++] = ALC_FORMAT_CHANNELS_SOFT;
data[i++] = device->FmtChans;
data[i++] = ALC_FORMAT_TYPE_SOFT;
data[i++] = device->FmtType;
}
data[i++] = ALC_MONO_SOURCES;
data[i++] = device->NumMonoSources;
data[i++] = ALC_STEREO_SOURCES;
data[i++] = device->NumStereoSources;
data[i++] = ALC_MAX_AUXILIARY_SENDS;
data[i++] = device->NumAuxSends;
data[i++] = 0;
}
break;
case ALC_FREQUENCY:
*data = device->Frequency;
break;
case ALC_REFRESH:
if(device->Type == Loopback)
alcSetError(device, ALC_INVALID_DEVICE);
else
*data = device->Frequency / device->UpdateSize;
break;
case ALC_SYNC:
if(device->Type == Loopback)
alcSetError(device, ALC_INVALID_DEVICE);
else
*data = ALC_FALSE;
break;
case ALC_FORMAT_CHANNELS_SOFT:
if(device->Type != Loopback)
alcSetError(device, ALC_INVALID_DEVICE);
else
*data = device->FmtChans;
break;
case ALC_FORMAT_TYPE_SOFT:
if(device->Type != Loopback)
alcSetError(device, ALC_INVALID_DEVICE);
else
*data = device->FmtType;
break;
case ALC_MONO_SOURCES:
*data = device->NumMonoSources;
break;
case ALC_STEREO_SOURCES:
*data = device->NumStereoSources;
break;
case ALC_MAX_AUXILIARY_SENDS:
*data = device->NumAuxSends;
break;
case ALC_CONNECTED:
*data = device->Connected;
break;
default:
alcSetError(device, ALC_INVALID_ENUM);
break;
}
}
if(device)
ALCdevice_DecRef(device);
}
/* alcIsExtensionPresent
*
* Determines if there is support for a particular extension
*/
ALC_API ALCboolean ALC_APIENTRY alcIsExtensionPresent(ALCdevice *device, const ALCchar *extName)
{
ALCboolean bResult = ALC_FALSE;
device = VerifyDevice(device);
if(!extName)
alcSetError(device, ALC_INVALID_VALUE);
else
{
size_t len = strlen(extName);
const char *ptr = (device ? alcExtensionList : alcNoDeviceExtList);
while(ptr && *ptr)
{
if(strncasecmp(ptr, extName, len) == 0 &&
(ptr[len] == '\0' || isspace(ptr[len])))
{
bResult = ALC_TRUE;
break;
}
if((ptr=strchr(ptr, ' ')) != NULL)
{
do {
++ptr;
} while(isspace(*ptr));
}
}
}
if(device)
ALCdevice_DecRef(device);
return bResult;
}
/* alcGetProcAddress
*
* Retrieves the function address for a particular extension function
*/
ALC_API ALCvoid* ALC_APIENTRY alcGetProcAddress(ALCdevice *device, const ALCchar *funcName)
{
ALCvoid *ptr = NULL;
device = VerifyDevice(device);
if(!funcName)
alcSetError(device, ALC_INVALID_VALUE);
else
{
ALsizei i = 0;
while(alcFunctions[i].funcName && strcmp(alcFunctions[i].funcName,funcName) != 0)
i++;
ptr = alcFunctions[i].address;
}
if(device)
ALCdevice_DecRef(device);
return ptr;
}
/* alcGetEnumValue
*
* Get the value for a particular ALC Enumerated Value
*/
ALC_API ALCenum ALC_APIENTRY alcGetEnumValue(ALCdevice *device, const ALCchar *enumName)
{
ALCenum val = 0;
device = VerifyDevice(device);
if(!enumName)
alcSetError(device, ALC_INVALID_VALUE);
else
{
ALsizei i = 0;
while(enumeration[i].enumName && strcmp(enumeration[i].enumName,enumName) != 0)
i++;
val = enumeration[i].value;
}
if(device)
ALCdevice_DecRef(device);
return val;
}
/* alcCreateContext
*
* Create and attach a Context to a particular Device.
*/
ALC_API ALCcontext* ALC_APIENTRY alcCreateContext(ALCdevice *device, const ALCint *attrList)
{
ALCcontext *ALContext;
ALCenum err;
LockLists();
if(!(device=VerifyDevice(device)) || device->Type == Capture || !device->Connected)
{
UnlockLists();
alcSetError(device, ALC_INVALID_DEVICE);
if(device) ALCdevice_DecRef(device);
return NULL;
}
/* Reset Context Last Error code */
device->LastError = ALC_NO_ERROR;
if((err=UpdateDeviceParams(device, attrList)) != ALC_NO_ERROR)
{
UnlockLists();
alcSetError(device, err);
if(err == ALC_INVALID_DEVICE)
aluHandleDisconnect(device);
ALCdevice_DecRef(device);
return NULL;
}
ALContext = calloc(1, sizeof(ALCcontext));
if(ALContext)
{
ALContext->ref = 1;
ALContext->MaxActiveSources = 256;
ALContext->ActiveSources = malloc(sizeof(ALContext->ActiveSources[0]) *
ALContext->MaxActiveSources);
}
if(!ALContext || !ALContext->ActiveSources)
{
if(!device->ContextList)
{
ALCdevice_StopPlayback(device);
device->Flags &= ~DEVICE_RUNNING;
}
UnlockLists();
free(ALContext);
ALContext = NULL;
alcSetError(device, ALC_OUT_OF_MEMORY);
ALCdevice_DecRef(device);
return NULL;
}
ALContext->Device = device;
ALCdevice_IncRef(device);
InitContext(ALContext);
do {
ALContext->next = device->ContextList;
} while(!CompExchangePtr((XchgPtr*)&device->ContextList, ALContext->next, ALContext));
UnlockLists();
ALCdevice_DecRef(device);
TRACE("Created context %p\n", ALContext);
return ALContext;
}
/* alcDestroyContext
*
* Remove a Context
*/
ALC_API ALCvoid ALC_APIENTRY alcDestroyContext(ALCcontext *context)
{
ALCdevice *Device;
LockLists();
/* alcGetContextsDevice sets an error for invalid contexts */
Device = alcGetContextsDevice(context);
if(Device)
{
ReleaseContext(context, Device);
if(!Device->ContextList)
{
ALCdevice_StopPlayback(Device);
Device->Flags &= ~DEVICE_RUNNING;
}
}
UnlockLists();
}
/* alcGetCurrentContext
*
* Returns the currently active Context
*/
ALC_API ALCcontext* ALC_APIENTRY alcGetCurrentContext(ALCvoid)
{
ALCcontext *Context;
Context = pthread_getspecific(LocalContext);
if(!Context) Context = GlobalContext;
return Context;
}
/* alcGetThreadContext
*
* Returns the currently active thread-local Context
*/
ALC_API ALCcontext* ALC_APIENTRY alcGetThreadContext(void)
{
ALCcontext *Context;
Context = pthread_getspecific(LocalContext);
return Context;
}
/* alcMakeContextCurrent
*
* Makes the given Context the active Context
*/
ALC_API ALCboolean ALC_APIENTRY alcMakeContextCurrent(ALCcontext *context)
{
/* context must be a valid Context or NULL */
if(context && !(context=VerifyContext(context)))
{
alcSetError(NULL, ALC_INVALID_CONTEXT);
return ALC_FALSE;
}
/* context's reference count is already incremented */
context = ExchangePtr((XchgPtr*)&GlobalContext, context);
if(context) ALCcontext_DecRef(context);
if((context=pthread_getspecific(LocalContext)) != NULL)
{
pthread_setspecific(LocalContext, NULL);
ALCcontext_DecRef(context);
}
return ALC_TRUE;
}
/* alcSetThreadContext
*
* Makes the given Context the active Context for the current thread
*/
ALC_API ALCboolean ALC_APIENTRY alcSetThreadContext(ALCcontext *context)
{
ALCcontext *old;
/* context must be a valid Context or NULL */
if(context && !(context=VerifyContext(context)))
{
alcSetError(NULL, ALC_INVALID_CONTEXT);
return ALC_FALSE;
}
/* context's reference count is already incremented */
old = pthread_getspecific(LocalContext);
pthread_setspecific(LocalContext, context);
if(old) ALCcontext_DecRef(old);
return ALC_TRUE;
}
/* alcGetContextsDevice
*
* Returns the Device that a particular Context is attached to
*/
ALC_API ALCdevice* ALC_APIENTRY alcGetContextsDevice(ALCcontext *Context)
{
ALCdevice *Device;
if(!(Context=VerifyContext(Context)))
{
alcSetError(NULL, ALC_INVALID_CONTEXT);
return NULL;
}
Device = Context->Device;
ALCcontext_DecRef(Context);
return Device;
}
/* alcOpenDevice
*
* Open the Device specified.
*/
ALC_API ALCdevice* ALC_APIENTRY alcOpenDevice(const ALCchar *deviceName)
{
const ALCchar *fmt;
ALCdevice *device;
ALCenum err;
DO_INITCONFIG();
if(!PlaybackBackend.name)
{
alcSetError(NULL, ALC_INVALID_VALUE);
return NULL;
}
if(deviceName && (!deviceName[0] || strcasecmp(deviceName, alcDefaultName) == 0 || strcasecmp(deviceName, "openal-soft") == 0))
deviceName = NULL;
device = calloc(1, sizeof(ALCdevice)+sizeof(ALeffectslot));
if(!device)
{
alcSetError(NULL, ALC_OUT_OF_MEMORY);
return NULL;
}
//Validate device
device->Funcs = &PlaybackBackend.Funcs;
device->ref = 1;
device->Connected = ALC_TRUE;
device->Type = Playback;
InitializeCriticalSection(&device->Mutex);
device->LastError = ALC_NO_ERROR;
device->Flags = 0;
device->Bs2b = NULL;
device->Bs2bLevel = 0;
device->szDeviceName = NULL;
device->ContextList = NULL;
device->MaxNoOfSources = 256;
device->AuxiliaryEffectSlotMax = 4;
device->NumAuxSends = MAX_SENDS;
InitUIntMap(&device->BufferMap, ~0);
InitUIntMap(&device->EffectMap, ~0);
InitUIntMap(&device->FilterMap, ~0);
//Set output format
device->FmtChans = DevFmtChannelsDefault;
device->FmtType = DevFmtTypeDefault;
device->Frequency = DEFAULT_OUTPUT_RATE;
device->NumUpdates = 4;
device->UpdateSize = 1024;
if(ConfigValueStr(NULL, "channels", &fmt))
{
static const struct {
const char name[16];
enum DevFmtChannels chans;
} chanlist[] = {
{ "mono", DevFmtMono },
{ "stereo", DevFmtStereo },
{ "quad", DevFmtQuad },
{ "surround51", DevFmtX51 },
{ "surround61", DevFmtX61 },
{ "surround71", DevFmtX71 },
};
size_t i;
for(i = 0;i < COUNTOF(chanlist);i++)
{
if(strcasecmp(chanlist[i].name, fmt) == 0)
{
device->FmtChans = chanlist[i].chans;
device->Flags |= DEVICE_CHANNELS_REQUEST;
break;
}
}
if(i == COUNTOF(chanlist))
ERR("Unsupported channels: %s\n", fmt);
}
if(ConfigValueStr(NULL, "sample-type", &fmt))
{
static const struct {
const char name[16];
enum DevFmtType type;
} typelist[] = {
{ "int8", DevFmtByte },
{ "uint8", DevFmtUByte },
{ "int16", DevFmtShort },
{ "uint16", DevFmtUShort },
{ "int32", DevFmtInt },
{ "uint32", DevFmtUInt },
{ "float32", DevFmtFloat },
};
size_t i;
for(i = 0;i < COUNTOF(typelist);i++)
{
if(strcasecmp(typelist[i].name, fmt) == 0)
{
device->FmtType = typelist[i].type;
device->Flags |= DEVICE_SAMPLE_TYPE_REQUEST;
break;
}
}
if(i == COUNTOF(typelist))
ERR("Unsupported sample-type: %s\n", fmt);
}
#define DEVICE_FORMAT_REQUEST (DEVICE_CHANNELS_REQUEST|DEVICE_SAMPLE_TYPE_REQUEST)
if((device->Flags&DEVICE_FORMAT_REQUEST) != DEVICE_FORMAT_REQUEST &&
ConfigValueStr(NULL, "format", &fmt))
{
static const struct {
const char name[32];
enum DevFmtChannels channels;
enum DevFmtType type;
} formats[] = {
{ "AL_FORMAT_MONO32", DevFmtMono, DevFmtFloat },
{ "AL_FORMAT_STEREO32", DevFmtStereo, DevFmtFloat },
{ "AL_FORMAT_QUAD32", DevFmtQuad, DevFmtFloat },
{ "AL_FORMAT_51CHN32", DevFmtX51, DevFmtFloat },
{ "AL_FORMAT_61CHN32", DevFmtX61, DevFmtFloat },
{ "AL_FORMAT_71CHN32", DevFmtX71, DevFmtFloat },
{ "AL_FORMAT_MONO16", DevFmtMono, DevFmtShort },
{ "AL_FORMAT_STEREO16", DevFmtStereo, DevFmtShort },
{ "AL_FORMAT_QUAD16", DevFmtQuad, DevFmtShort },
{ "AL_FORMAT_51CHN16", DevFmtX51, DevFmtShort },
{ "AL_FORMAT_61CHN16", DevFmtX61, DevFmtShort },
{ "AL_FORMAT_71CHN16", DevFmtX71, DevFmtShort },
{ "AL_FORMAT_MONO8", DevFmtMono, DevFmtByte },
{ "AL_FORMAT_STEREO8", DevFmtStereo, DevFmtByte },
{ "AL_FORMAT_QUAD8", DevFmtQuad, DevFmtByte },
{ "AL_FORMAT_51CHN8", DevFmtX51, DevFmtByte },
{ "AL_FORMAT_61CHN8", DevFmtX61, DevFmtByte },
{ "AL_FORMAT_71CHN8", DevFmtX71, DevFmtByte }
};
size_t i;
ERR("Option 'format' is deprecated, please use 'channels' and 'sample-type'\n");
for(i = 0;i < COUNTOF(formats);i++)
{
if(strcasecmp(fmt, formats[i].name) == 0)
{
if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
device->FmtChans = formats[i].channels;
if(!(device->Flags&DEVICE_SAMPLE_TYPE_REQUEST))
device->FmtType = formats[i].type;
device->Flags |= DEVICE_FORMAT_REQUEST;
break;
}
}
if(i == COUNTOF(formats))
ERR("Unsupported format: %s\n", fmt);
}
#undef DEVICE_FORMAT_REQUEST
if(ConfigValueUInt(NULL, "frequency", &device->Frequency))
{
device->Flags |= DEVICE_FREQUENCY_REQUEST;
if(device->Frequency < MIN_OUTPUT_RATE)
ERR("%uhz request clamped to %uhz minimum\n", device->Frequency, MIN_OUTPUT_RATE);
device->Frequency = maxu(device->Frequency, MIN_OUTPUT_RATE);
}
ConfigValueUInt(NULL, "periods", &device->NumUpdates);
device->NumUpdates = clampu(device->NumUpdates, 2, 16);
ConfigValueUInt(NULL, "period_size", &device->UpdateSize);
device->UpdateSize = clampu(device->UpdateSize, 64, 8192);
ConfigValueUInt(NULL, "sources", &device->MaxNoOfSources);
if(device->MaxNoOfSources == 0) device->MaxNoOfSources = 256;
ConfigValueUInt(NULL, "slots", &device->AuxiliaryEffectSlotMax);
if(device->AuxiliaryEffectSlotMax == 0) device->AuxiliaryEffectSlotMax = 4;
ConfigValueUInt(NULL, "sends", &device->NumAuxSends);
if(device->NumAuxSends > MAX_SENDS) device->NumAuxSends = MAX_SENDS;
ConfigValueInt(NULL, "cf_level", &device->Bs2bLevel);
device->NumStereoSources = 1;
device->NumMonoSources = device->MaxNoOfSources - device->NumStereoSources;
// Find a playback device to open
LockLists();
if((err=ALCdevice_OpenPlayback(device, deviceName)) != ALC_NO_ERROR)
{
UnlockLists();
DeleteCriticalSection(&device->Mutex);
free(device);
alcSetError(NULL, err);
return NULL;
}
UnlockLists();
if(DefaultEffect.type != AL_EFFECT_NULL)
{
device->DefaultSlot = (ALeffectslot*)(device+1);
if(InitEffectSlot(device->DefaultSlot) != AL_NO_ERROR)
{
device->DefaultSlot = NULL;
ERR("Failed to initialize the default effect slot\n");
}
else if(InitializeEffect(device, device->DefaultSlot, &DefaultEffect) != AL_NO_ERROR)
{
ALeffectState_Destroy(device->DefaultSlot->EffectState);
device->DefaultSlot = NULL;
ERR("Failed to initialize the default effect\n");
}
}
do {
device->next = DeviceList;
} while(!CompExchangePtr((XchgPtr*)&DeviceList, device->next, device));
TRACE("Created device %p, \"%s\"\n", device, device->szDeviceName);
return device;
}
/* alcCloseDevice
*
* Close the specified Device
*/
ALC_API ALCboolean ALC_APIENTRY alcCloseDevice(ALCdevice *pDevice)
{
ALCdevice *volatile*list;
ALCcontext *ctx;
LockLists();
list = &DeviceList;
while(*list && *list != pDevice)
list = &(*list)->next;
if(!*list || (*list)->Type == Capture)
{
alcSetError(*list, ALC_INVALID_DEVICE);
UnlockLists();
return ALC_FALSE;
}
*list = (*list)->next;
UnlockLists();
while((ctx=pDevice->ContextList) != NULL)
{
WARN("Releasing context %p\n", ctx);
ReleaseContext(ctx, pDevice);
}
if((pDevice->Flags&DEVICE_RUNNING))
ALCdevice_StopPlayback(pDevice);
pDevice->Flags &= ~DEVICE_RUNNING;
ALCdevice_ClosePlayback(pDevice);
ALCdevice_DecRef(pDevice);
return ALC_TRUE;
}
/* alcLoopbackOpenDeviceSOFT
*
* Open a loopback device, for manual rendering.
*/
ALC_API ALCdevice* ALC_APIENTRY alcLoopbackOpenDeviceSOFT(const ALCchar *deviceName)
{
ALCdevice *device;
DO_INITCONFIG();
/* Make sure the device name, if specified, is us. */
if(deviceName && strcmp(deviceName, alcDefaultName) != 0)
{
alcSetError(NULL, ALC_INVALID_VALUE);
return NULL;
}
device = calloc(1, sizeof(ALCdevice));
if(!device)
{
alcSetError(NULL, ALC_OUT_OF_MEMORY);
return NULL;
}
//Validate device
device->Funcs = &BackendLoopback.Funcs;
device->ref = 1;
device->Connected = ALC_TRUE;
device->Type = Loopback;
InitializeCriticalSection(&device->Mutex);
device->LastError = ALC_NO_ERROR;
device->Flags = 0;
device->Bs2b = NULL;
device->Bs2bLevel = 0;
device->szDeviceName = NULL;
device->ContextList = NULL;
device->MaxNoOfSources = 256;
device->AuxiliaryEffectSlotMax = 4;
device->NumAuxSends = MAX_SENDS;
InitUIntMap(&device->BufferMap, ~0);
InitUIntMap(&device->EffectMap, ~0);
InitUIntMap(&device->FilterMap, ~0);
//Set output format
device->NumUpdates = 0;
device->UpdateSize = 0;
device->Frequency = DEFAULT_OUTPUT_RATE;
device->FmtChans = DevFmtChannelsDefault;
device->FmtType = DevFmtTypeDefault;
ConfigValueUInt(NULL, "sources", &device->MaxNoOfSources);
if(device->MaxNoOfSources == 0) device->MaxNoOfSources = 256;
ConfigValueUInt(NULL, "slots", &device->AuxiliaryEffectSlotMax);
if(device->AuxiliaryEffectSlotMax == 0) device->AuxiliaryEffectSlotMax = 4;
ConfigValueUInt(NULL, "sends", &device->NumAuxSends);
if(device->NumAuxSends > MAX_SENDS) device->NumAuxSends = MAX_SENDS;
device->NumStereoSources = 1;
device->NumMonoSources = device->MaxNoOfSources - device->NumStereoSources;
// Open the "backend"
ALCdevice_OpenPlayback(device, "Loopback");
do {
device->next = DeviceList;
} while(!CompExchangePtr((XchgPtr*)&DeviceList, device->next, device));
TRACE("Created device %p\n", device);
return device;
}
/* alcIsRenderFormatSupportedSOFT
*
* Determines if the loopback device supports the given format for rendering.
*/
ALC_API ALCboolean ALC_APIENTRY alcIsRenderFormatSupportedSOFT(ALCdevice *device, ALCsizei freq, ALCenum channels, ALCenum type)
{
ALCboolean ret = ALC_FALSE;
if(!(device=VerifyDevice(device)) || device->Type != Loopback)
alcSetError(device, ALC_INVALID_DEVICE);
else if(freq <= 0)
alcSetError(device, ALC_INVALID_VALUE);
else
{
if(IsValidALCType(type) && BytesFromDevFmt(type) > 0 &&
IsValidALCChannels(channels) && ChannelsFromDevFmt(channels) > 0 &&
freq >= MIN_OUTPUT_RATE)
ret = ALC_TRUE;
}
if(device) ALCdevice_DecRef(device);
return ret;
}
/* alcRenderSamplesSOFT
*
* Renders some samples into a buffer, using the format last set by the
* attributes given to alcCreateContext.
*/
ALC_API void ALC_APIENTRY alcRenderSamplesSOFT(ALCdevice *device, ALCvoid *buffer, ALCsizei samples)
{
if(!(device=VerifyDevice(device)) || device->Type != Loopback)
alcSetError(device, ALC_INVALID_DEVICE);
else if(samples < 0 || (samples > 0 && buffer == NULL))
alcSetError(device, ALC_INVALID_VALUE);
else
aluMixData(device, buffer, samples);
if(device) ALCdevice_DecRef(device);
}
static void ReleaseALC(void)
{
ALCdevice *dev;
free(alcAllDeviceList); alcAllDeviceList = NULL;
alcAllDeviceListSize = 0;
free(alcCaptureDeviceList); alcCaptureDeviceList = NULL;
alcCaptureDeviceListSize = 0;
free(alcDefaultAllDeviceSpecifier);
alcDefaultAllDeviceSpecifier = NULL;
free(alcCaptureDefaultDeviceSpecifier);
alcCaptureDefaultDeviceSpecifier = NULL;
if((dev=ExchangePtr((XchgPtr*)&DeviceList, NULL)) != NULL)
{
ALCuint num = 0;
do {
num++;
} while((dev=dev->next) != NULL);
ERR("%u device%s not closed\n", num, (num>1)?"s":"");
}
}
///////////////////////////////////////////////////////
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