Mercurial > audio-send

     1 #ifndef AL_MAIN_H

     2 #define AL_MAIN_H

     3 

     4 #include <string.h>

     5 #include <stdio.h>

     6 #include <stdarg.h>

     7 

     8 #ifdef HAVE_FENV_H

     9 #include <fenv.h>

    10 #endif

    11 

    12 #include "AL/al.h"

    13 #include "AL/alc.h"

    14 #include "AL/alext.h"

    15 

    16 #ifndef ALC_SOFT_device_loopback

    17 #define ALC_SOFT_device_loopback 1

    18 #define ALC_FORMAT_CHANNELS_SOFT                 0x1990

    19 #define ALC_FORMAT_TYPE_SOFT                     0x1991

    20 

    21 /* Sample types */

    22 #define ALC_BYTE                                 0x1400

    23 #define ALC_UNSIGNED_BYTE                        0x1401

    24 #define ALC_SHORT                                0x1402

    25 #define ALC_UNSIGNED_SHORT                       0x1403

    26 #define ALC_INT                                  0x1404

    27 #define ALC_UNSIGNED_INT                         0x1405

    28 #define ALC_FLOAT                                0x1406

    29 

    30 /* Channel configurations */

    31 #define ALC_MONO                                 0x1500

    32 #define ALC_STEREO                               0x1501

    33 #define ALC_QUAD                                 0x1503

    34 #define ALC_5POINT1                              0x1504 /* (WFX order) */

    35 #define ALC_6POINT1                              0x1505 /* (WFX order) */

    36 #define ALC_7POINT1                              0x1506 /* (WFX order) */

    37 

    38 typedef ALCdevice* (ALC_APIENTRY*LPALCLOOPBACKOPENDEVICESOFT)(void);

    39 typedef ALCboolean (ALC_APIENTRY*LPALCISRENDERFORMATSUPPORTEDSOFT)(ALCdevice *device, ALCsizei freq, ALCenum channels, ALCenum type);

    40 typedef void (ALC_APIENTRY*LPALCRENDERSAMPLESSOFT)(ALCdevice *device, ALCvoid *buffer, ALCsizei samples);

    41 #ifdef AL_ALEXT_PROTOTYPES

    42 ALC_API ALCdevice* ALC_APIENTRY alcLoopbackOpenDeviceSOFT(void);

    43 ALC_API ALCboolean ALC_APIENTRY alcIsRenderFormatSupportedSOFT(ALCdevice *device, ALCsizei freq, ALCenum channels, ALCenum type);

    44 ALC_API void ALC_APIENTRY alcRenderSamplesSOFT(ALCdevice *device, ALCvoid *buffer, ALCsizei samples);

    45 #endif

    46 #endif

    47 

    48 #ifndef AL_SOFT_buffer_samples

    49 #define AL_SOFT_buffer_samples 1

    50 /* Sample types */

    51 #define AL_BYTE                                  0x1400

    52 #define AL_UNSIGNED_BYTE                         0x1401

    53 #define AL_SHORT                                 0x1402

    54 #define AL_UNSIGNED_SHORT                        0x1403

    55 #define AL_INT                                   0x1404

    56 #define AL_UNSIGNED_INT                          0x1405

    57 #define AL_FLOAT                                 0x1406

    58 #define AL_DOUBLE                                0x1407

    59 #define AL_BYTE3                                 0x1408

    60 #define AL_UNSIGNED_BYTE3                        0x1409

    61 #define AL_MULAW                                 0x1410

    62 #define AL_IMA4                                  0x1411

    63 

    64 /* Channel configurations */

    65 #define AL_MONO                                  0x1500

    66 #define AL_STEREO                                0x1501

    67 #define AL_REAR                                  0x1502

    68 #define AL_QUAD                                  0x1503

    69 #define AL_5POINT1                               0x1504 /* (WFX order) */

    70 #define AL_6POINT1                               0x1505 /* (WFX order) */

    71 #define AL_7POINT1                               0x1506 /* (WFX order) */

    72 

    73 /* Storage formats */

    74 #define AL_MONO8                                 0x1100

    75 #define AL_MONO16                                0x1101

    76 #define AL_MONO32F                               0x10010

    77 #define AL_STEREO8                               0x1102

    78 #define AL_STEREO16                              0x1103

    79 #define AL_STEREO32F                             0x10011

    80 #define AL_QUAD8                                 0x1204

    81 #define AL_QUAD16                                0x1205

    82 #define AL_QUAD32F                               0x1206

    83 #define AL_REAR8                                 0x1207

    84 #define AL_REAR16                                0x1208

    85 #define AL_REAR32F                               0x1209

    86 #define AL_5POINT1_8                             0x120A

    87 #define AL_5POINT1_16                            0x120B

    88 #define AL_5POINT1_32F                           0x120C

    89 #define AL_6POINT1_8                             0x120D

    90 #define AL_6POINT1_16                            0x120E

    91 #define AL_6POINT1_32F                           0x120F

    92 #define AL_7POINT1_8                             0x1210

    93 #define AL_7POINT1_16                            0x1211

    94 #define AL_7POINT1_32F                           0x1212

    95 

    96 typedef void (AL_APIENTRY*LPALBUFFERSAMPLESSOFT)(ALuint,ALuint,ALenum,ALsizei,ALenum,ALenum,const ALvoid*);

    97 typedef void (AL_APIENTRY*LPALBUFFERSUBSAMPLESSOFT)(ALuint,ALsizei,ALsizei,ALenum,ALenum,const ALvoid*);

    98 typedef void (AL_APIENTRY*LPALGETBUFFERSAMPLESSOFT)(ALuint,ALsizei,ALsizei,ALenum,ALenum,ALvoid*);

    99 typedef ALboolean (AL_APIENTRY*LPALISBUFFERFORMATSUPPORTEDSOFT)(ALenum);

   100 #ifdef AL_ALEXT_PROTOTYPES

   101 AL_API void AL_APIENTRY alBufferSamplesSOFT(ALuint buffer,

   102     ALuint samplerate, ALenum internalformat, ALsizei frames,

   103     ALenum channels, ALenum type, const ALvoid *data);

   104 AL_API void AL_APIENTRY alBufferSubSamplesSOFT(ALuint buffer,

   105     ALsizei offset, ALsizei frames,

   106     ALenum channels, ALenum type, const ALvoid *data);

   107 AL_API void AL_APIENTRY alGetBufferSamplesSOFT(ALuint buffer,

   108     ALsizei offset, ALsizei frames,

   109     ALenum channels, ALenum type, ALvoid *data);

   110 AL_API ALboolean AL_APIENTRY alIsBufferFormatSupportedSOFT(ALenum format);

   111 #endif

   112 #endif

   113 

   114 #ifndef AL_SOFT_non_virtual_channels

   115 #define AL_SOFT_non_virtual_channels 1

   116 #define AL_VIRTUAL_CHANNELS_SOFT                 0x1033

   117 #endif

   118 

   119 #ifndef AL_SOFT_deferred_updates

   120 #define AL_SOFT_deferred_updates 1

   121 #define AL_DEFERRED_UPDATES_SOFT                 0xC002

   122 typedef ALvoid (AL_APIENTRY*LPALDEFERUPDATESSOFT)(void);

   123 typedef ALvoid (AL_APIENTRY*LPALPROCESSUPDATESSOFT)(void);

   124 #ifdef AL_ALEXT_PROTOTYPES

   125 AL_API ALvoid AL_APIENTRY alDeferUpdatesSOFT(void);

   126 AL_API ALvoid AL_APIENTRY alProcessUpdatesSOFT(void);

   127 #endif

   128 #endif

   129 

   130 

   131 #if defined(HAVE_STDINT_H)

   132 #include <stdint.h>

   133 typedef int64_t ALint64;

   134 typedef uint64_t ALuint64;

   135 #elif defined(HAVE___INT64)

   136 typedef __int64 ALint64;

   137 typedef unsigned __int64 ALuint64;

   138 #elif (SIZEOF_LONG == 8)

   139 typedef long ALint64;

   140 typedef unsigned long ALuint64;

   141 #elif (SIZEOF_LONG_LONG == 8)

   142 typedef long long ALint64;

   143 typedef unsigned long long ALuint64;

   144 #endif

   145 

   146 typedef ptrdiff_t ALintptrEXT;

   147 typedef ptrdiff_t ALsizeiptrEXT;

   148 

   149 #ifdef HAVE_GCC_FORMAT

   150 #define PRINTF_STYLE(x, y) __attribute__((format(printf, (x), (y))))

   151 #else

   152 #define PRINTF_STYLE(x, y)

   153 #endif

   154 

   155 #if defined(HAVE_RESTRICT)

   156 #define RESTRICT restrict

   157 #elif defined(HAVE___RESTRICT)

   158 #define RESTRICT __restrict

   159 #else

   160 #define RESTRICT

   161 #endif

   162 

   163 #ifdef _WIN32

   164 

   165 #ifndef _WIN32_WINNT

   166 #define _WIN32_WINNT 0x0500

   167 #endif

   168 #include <windows.h>

   169 

   170 typedef DWORD tls_type;

   171 #define tls_create(x) (*(x) = TlsAlloc())

   172 #define tls_delete(x) TlsFree((x))

   173 #define tls_get(x) TlsGetValue((x))

   174 #define tls_set(x, a) TlsSetValue((x), (a))

   175 

   176 #define HAVE_DYNLOAD 1

   177 void *LoadLib(const char *name);

   178 void CloseLib(void *handle);

   179 void *GetSymbol(void *handle, const char *name);

   180 

   181 typedef LONG pthread_once_t;

   182 #define PTHREAD_ONCE_INIT 0

   183 void pthread_once(pthread_once_t *once, void (*callback)(void));

   184 

   185 #else

   186 

   187 #include <unistd.h>

   188 #include <assert.h>

   189 #include <pthread.h>

   190 #ifdef HAVE_PTHREAD_NP_H

   191 #include <pthread_np.h>

   192 #endif

   193 #include <sys/time.h>

   194 #include <time.h>

   195 #include <errno.h>

   196 

   197 #define IsBadWritePtr(a,b) ((a) == NULL && (b) != 0)

   198 

   199 typedef pthread_key_t tls_type;

   200 #define tls_create(x) pthread_key_create((x), NULL)

   201 #define tls_delete(x) pthread_key_delete((x))

   202 #define tls_get(x) pthread_getspecific((x))

   203 #define tls_set(x, a) pthread_setspecific((x), (a))

   204 

   205 typedef pthread_mutex_t CRITICAL_SECTION;

   206 void InitializeCriticalSection(CRITICAL_SECTION *cs);

   207 void DeleteCriticalSection(CRITICAL_SECTION *cs);

   208 void EnterCriticalSection(CRITICAL_SECTION *cs);

   209 void LeaveCriticalSection(CRITICAL_SECTION *cs);

   210 

   211 ALuint timeGetTime(void);

   212 

   213 static __inline void Sleep(ALuint t)

   214 {

   215     struct timespec tv, rem;

   216     tv.tv_nsec = (t*1000000)%1000000000;

   217     tv.tv_sec = t/1000;

   218 

   219     while(nanosleep(&tv, &rem) == -1 && errno == EINTR)

   220         tv = rem;

   221 }

   222 

   223 #if defined(HAVE_DLFCN_H)

   224 #define HAVE_DYNLOAD 1

   225 void *LoadLib(const char *name);

   226 void CloseLib(void *handle);

   227 void *GetSymbol(void *handle, const char *name);

   228 #endif

   229 

   230 #endif

   231 

   232 #include "alListener.h"

   233 #include "alu.h"

   234 

   235 #ifdef __cplusplus

   236 extern "C" {

   237 #endif

   238 

   239 

   240 #define DEFAULT_OUTPUT_RATE        (44100)

   241 

   242 #define SPEEDOFSOUNDMETRESPERSEC   (343.3f)

   243 #define AIRABSORBGAINHF            (0.99426) /* -0.05dB */

   244 

   245 #define LOWPASSFREQCUTOFF          (5000)

   246 

   247 

   248 // Find the next power-of-2 for non-power-of-2 numbers.

   249 static __inline ALuint NextPowerOf2(ALuint value)

   250 {

   251     ALuint powerOf2 = 1;

   252 

   253     if(value)

   254     {

   255         value--;

   256         while(value)

   257         {

   258             value >>= 1;

   259             powerOf2 <<= 1;

   260         }

   261     }

   262     return powerOf2;

   263 }

   264 

   265 

   266 enum DevProbe {

   267     DEVICE_PROBE,

   268     ALL_DEVICE_PROBE,

   269     CAPTURE_DEVICE_PROBE

   270 };

   271 

   272 typedef struct {

   273     ALCboolean (*OpenPlayback)(ALCdevice*, const ALCchar*);

   274     void (*ClosePlayback)(ALCdevice*);

   275     ALCboolean (*ResetPlayback)(ALCdevice*);

   276     void (*StopPlayback)(ALCdevice*);

   277 

   278     ALCboolean (*OpenCapture)(ALCdevice*, const ALCchar*);

   279     void (*CloseCapture)(ALCdevice*);

   280     void (*StartCapture)(ALCdevice*);

   281     void (*StopCapture)(ALCdevice*);

   282     void (*CaptureSamples)(ALCdevice*, void*, ALCuint);

   283     ALCuint (*AvailableSamples)(ALCdevice*);

   284 } BackendFuncs;

   285 

   286 struct BackendInfo {

   287     const char *name;

   288     ALCboolean (*Init)(BackendFuncs*);

   289     void (*Deinit)(void);

   290     void (*Probe)(enum DevProbe);

   291     BackendFuncs Funcs;

   292 };

   293 

   294 ALCboolean alc_alsa_init(BackendFuncs *func_list);

   295 void alc_alsa_deinit(void);

   296 void alc_alsa_probe(enum DevProbe type);

   297 ALCboolean alc_oss_init(BackendFuncs *func_list);

   298 void alc_oss_deinit(void);

   299 void alc_oss_probe(enum DevProbe type);

   300 ALCboolean alc_solaris_init(BackendFuncs *func_list);

   301 void alc_solaris_deinit(void);

   302 void alc_solaris_probe(enum DevProbe type);

   303 ALCboolean alc_sndio_init(BackendFuncs *func_list);

   304 void alc_sndio_deinit(void);

   305 void alc_sndio_probe(enum DevProbe type);

   306 ALCboolean alcMMDevApiInit(BackendFuncs *func_list);

   307 void alcMMDevApiDeinit(void);

   308 void alcMMDevApiProbe(enum DevProbe type);

   309 ALCboolean alcDSoundInit(BackendFuncs *func_list);

   310 void alcDSoundDeinit(void);

   311 void alcDSoundProbe(enum DevProbe type);

   312 ALCboolean alcWinMMInit(BackendFuncs *FuncList);

   313 void alcWinMMDeinit(void);

   314 void alcWinMMProbe(enum DevProbe type);

   315 ALCboolean alc_pa_init(BackendFuncs *func_list);

   316 void alc_pa_deinit(void);

   317 void alc_pa_probe(enum DevProbe type);

   318 ALCboolean alc_wave_init(BackendFuncs *func_list);

   319 void alc_wave_deinit(void);

   320 void alc_wave_probe(enum DevProbe type);

   321 ALCboolean alc_pulse_init(BackendFuncs *func_list);

   322 void alc_pulse_deinit(void);

   323 void alc_pulse_probe(enum DevProbe type);

   324 ALCboolean alc_ca_init(BackendFuncs *func_list);

   325 void alc_ca_deinit(void);

   326 void alc_ca_probe(enum DevProbe type);

   327 ALCboolean alc_opensl_init(BackendFuncs *func_list);

   328 void alc_opensl_deinit(void);

   329 void alc_opensl_probe(enum DevProbe type);

   330 ALCboolean alc_null_init(BackendFuncs *func_list);

   331 void alc_null_deinit(void);

   332 void alc_null_probe(enum DevProbe type);

   333 ALCboolean alc_loopback_init(BackendFuncs *func_list);

   334 void alc_loopback_deinit(void);

   335 void alc_loopback_probe(enum DevProbe type);

   336 

   337 //RLM: aurellem send device insertion

   338 ALCboolean alc_send_init(BackendFuncs *func_list);

   339 void alc_send_deinit(void);

   340 void alc_send_probe(enum DevProbe type);

   341 

   342 

   343 typedef struct UIntMap {

   344     struct {

   345         ALuint key;

   346         ALvoid *value;

   347     } *array;

   348     ALsizei size;

   349     ALsizei maxsize;

   350 } UIntMap;

   351 

   352 void InitUIntMap(UIntMap *map);

   353 void ResetUIntMap(UIntMap *map);

   354 ALenum InsertUIntMapEntry(UIntMap *map, ALuint key, ALvoid *value);

   355 void RemoveUIntMapKey(UIntMap *map, ALuint key);

   356 ALvoid *LookupUIntMapKey(UIntMap *map, ALuint key);

   357 

   358 /* Device formats */

   359 enum DevFmtType {

   360     DevFmtByte   = AL_BYTE,

   361     DevFmtUByte  = AL_UNSIGNED_BYTE,

   362     DevFmtShort  = AL_SHORT,

   363     DevFmtUShort = AL_UNSIGNED_SHORT,

   364     DevFmtFloat  = AL_FLOAT

   365 };

   366 enum DevFmtChannels {

   367     DevFmtMono   = AL_MONO,

   368     DevFmtStereo = AL_STEREO,

   369     DevFmtQuad   = AL_QUAD,

   370     DevFmtX51    = AL_5POINT1,

   371     DevFmtX61    = AL_6POINT1,

   372     DevFmtX71    = AL_7POINT1,

   373 

   374     /* Similar to 5.1, except using the side channels instead of back */

   375     DevFmtX51Side = 0x80000000 | AL_5POINT1

   376 };

   377 

   378 ALuint BytesFromDevFmt(enum DevFmtType type);

   379 ALuint ChannelsFromDevFmt(enum DevFmtChannels chans);

   380 static __inline ALuint FrameSizeFromDevFmt(enum DevFmtChannels chans,

   381                                            enum DevFmtType type)

   382 {

   383     return ChannelsFromDevFmt(chans) * BytesFromDevFmt(type);

   384 }

   385 

   386 

   387 extern const struct EffectList {

   388     const char *name;

   389     int type;

   390     const char *ename;

   391     ALenum val;

   392 } EffectList[];

   393 

   394 

   395 struct ALCdevice_struct

   396 {

   397     ALCboolean   Connected;

   398     ALboolean    IsCaptureDevice;

   399     ALboolean    IsLoopbackDevice;

   400 

   401     CRITICAL_SECTION Mutex;

   402 

   403     ALuint       Frequency;

   404     ALuint       UpdateSize;

   405     ALuint       NumUpdates;

   406     enum DevFmtChannels FmtChans;

   407     enum DevFmtType     FmtType;

   408 

   409     ALCchar      *szDeviceName;

   410 

   411     ALCenum      LastError;

   412 

   413     // Maximum number of sources that can be created

   414     ALuint       MaxNoOfSources;

   415     // Maximum number of slots that can be created

   416     ALuint       AuxiliaryEffectSlotMax;

   417 

   418     ALCuint      NumMonoSources;

   419     ALCuint      NumStereoSources;

   420     ALuint       NumAuxSends;

   421 

   422     // Map of Buffers for this device

   423     UIntMap BufferMap;

   424 

   425     // Map of Effects for this device

   426     UIntMap EffectMap;

   427 

   428     // Map of Filters for this device

   429     UIntMap FilterMap;

   430 

   431     // Stereo-to-binaural filter

   432     struct bs2b *Bs2b;

   433     ALCint       Bs2bLevel;

   434 

   435     // Device flags

   436     ALuint       Flags;

   437 

   438     // Dry path buffer mix

   439     ALfloat DryBuffer[BUFFERSIZE][MAXCHANNELS];

   440 

   441     enum Channel DevChannels[MAXCHANNELS];

   442 

   443     enum Channel Speaker2Chan[MAXCHANNELS];

   444     ALfloat PanningLUT[LUT_NUM][MAXCHANNELS];

   445     ALuint  NumChan;

   446 

   447     ALfloat ClickRemoval[MAXCHANNELS];

   448     ALfloat PendingClicks[MAXCHANNELS];

   449 

   450     // Contexts created on this device

   451     ALCcontext  **Contexts;

   452     ALuint        NumContexts;

   453 

   454     BackendFuncs *Funcs;

   455     void         *ExtraData; // For the backend's use

   456 

   457     ALCdevice *next;

   458 };

   459 

   460 #define ALCdevice_OpenPlayback(a,b)      ((a)->Funcs->OpenPlayback((a), (b)))

   461 #define ALCdevice_ClosePlayback(a)       ((a)->Funcs->ClosePlayback((a)))

   462 #define ALCdevice_ResetPlayback(a)       ((a)->Funcs->ResetPlayback((a)))

   463 #define ALCdevice_StopPlayback(a)        ((a)->Funcs->StopPlayback((a)))

   464 #define ALCdevice_OpenCapture(a,b)       ((a)->Funcs->OpenCapture((a), (b)))

   465 #define ALCdevice_CloseCapture(a)        ((a)->Funcs->CloseCapture((a)))

   466 #define ALCdevice_StartCapture(a)        ((a)->Funcs->StartCapture((a)))

   467 #define ALCdevice_StopCapture(a)         ((a)->Funcs->StopCapture((a)))

   468 #define ALCdevice_CaptureSamples(a,b,c)  ((a)->Funcs->CaptureSamples((a), (b), (c)))

   469 #define ALCdevice_AvailableSamples(a)    ((a)->Funcs->AvailableSamples((a)))

   470 

   471 // Duplicate stereo sources on the side/rear channels

   472 #define DEVICE_DUPLICATE_STEREO                  (1<<0)

   473 // Use HRTF filters for mixing sounds

   474 #define DEVICE_USE_HRTF                          (1<<1)

   475 // Frequency was requested by the app or config file

   476 #define DEVICE_FREQUENCY_REQUEST                 (1<<2)

   477 // Channel configuration was requested by the config file

   478 #define DEVICE_CHANNELS_REQUEST                  (1<<3)

   479 

   480 // Specifies if the device is currently running

   481 #define DEVICE_RUNNING                           (1<<31)

   482 

   483 struct ALCcontext_struct

   484 {

   485     ALlistener  Listener;

   486 

   487     UIntMap SourceMap;

   488     UIntMap EffectSlotMap;

   489 

   490     ALenum      LastError;

   491 

   492     ALboolean   UpdateSources;

   493 

   494     enum DistanceModel DistanceModel;

   495     ALboolean   SourceDistanceModel;

   496 

   497     ALfloat     DopplerFactor;

   498     ALfloat     DopplerVelocity;

   499     ALfloat     flSpeedOfSound;

   500     ALboolean   DeferUpdates;

   501 

   502     struct ALsource **ActiveSources;

   503     ALsizei           ActiveSourceCount;

   504     ALsizei           MaxActiveSources;

   505 

   506     ALCdevice  *Device;

   507     const ALCchar *ExtensionList;

   508 

   509     ALCcontext *next;

   510 };

   511 

   512 void AppendDeviceList(const ALCchar *name);

   513 void AppendAllDeviceList(const ALCchar *name);

   514 void AppendCaptureDeviceList(const ALCchar *name);

   515 

   516 ALCvoid alcSetError(ALCdevice *device, ALenum errorCode);

   517 

   518 ALCvoid LockDevice(ALCdevice *device);

   519 ALCvoid UnlockDevice(ALCdevice *device);

   520 ALCvoid LockContext(ALCcontext *context);

   521 ALCvoid UnlockContext(ALCcontext *context);

   522 

   523 ALvoid *StartThread(ALuint (*func)(ALvoid*), ALvoid *ptr);

   524 ALuint StopThread(ALvoid *thread);

   525 

   526 ALCcontext *GetLockedContext(void);

   527 

   528 typedef struct RingBuffer RingBuffer;

   529 RingBuffer *CreateRingBuffer(ALsizei frame_size, ALsizei length);

   530 void DestroyRingBuffer(RingBuffer *ring);

   531 ALsizei RingBufferSize(RingBuffer *ring);

   532 void WriteRingBuffer(RingBuffer *ring, const ALubyte *data, ALsizei len);

   533 void ReadRingBuffer(RingBuffer *ring, ALubyte *data, ALsizei len);

   534 

   535 void ReadALConfig(void);

   536 void FreeALConfig(void);

   537 int ConfigValueExists(const char *blockName, const char *keyName);

   538 const char *GetConfigValue(const char *blockName, const char *keyName, const char *def);

   539 int GetConfigValueInt(const char *blockName, const char *keyName, int def);

   540 float GetConfigValueFloat(const char *blockName, const char *keyName, float def);

   541 int GetConfigValueBool(const char *blockName, const char *keyName, int def);

   542 

   543 void SetRTPriority(void);

   544 

   545 void SetDefaultChannelOrder(ALCdevice *device);

   546 void SetDefaultWFXChannelOrder(ALCdevice *device);

   547 

   548 const ALCchar *DevFmtTypeString(enum DevFmtType type);

   549 const ALCchar *DevFmtChannelsString(enum DevFmtChannels chans);

   550 

   551 #define HRIR_BITS        (5)

   552 #define HRIR_LENGTH      (1<<HRIR_BITS)

   553 #define HRIR_MASK        (HRIR_LENGTH-1)

   554 void InitHrtf(void);

   555 ALCboolean IsHrtfCompatible(ALCdevice *device);

   556 ALfloat CalcHrtfDelta(ALfloat oldGain, ALfloat newGain, const ALfloat olddir[3], const ALfloat newdir[3]);

   557 void GetLerpedHrtfCoeffs(ALfloat elevation, ALfloat azimuth, ALfloat gain, ALfloat (*coeffs)[2], ALuint *delays);

   558 ALuint GetMovingHrtfCoeffs(ALfloat elevation, ALfloat azimuth, ALfloat gain, ALfloat delta, ALint counter, ALfloat (*coeffs)[2], ALuint *delays, ALfloat (*coeffStep)[2], ALint *delayStep);

   559 

   560 void al_print(const char *fname, unsigned int line, const char *fmt, ...)

   561              PRINTF_STYLE(3,4);

   562 #define AL_PRINT(...) al_print(__FILE__, __LINE__, __VA_ARGS__)

   563 

   564 extern FILE *LogFile;

   565 enum LogLevel {

   566     NoLog,

   567     LogError,

   568     LogWarning,

   569     LogTrace

   570 };

   571 extern enum LogLevel LogLevel;

   572 

   573 #define TRACE(...) do {                                                       \

   574     if(LogLevel >= LogTrace)                                                  \

   575         AL_PRINT(__VA_ARGS__);                                                \

   576 } while(0)

   577 

   578 #define WARN(...) do {                                                        \

   579     if(LogLevel >= LogWarning)                                                \

   580         AL_PRINT(__VA_ARGS__);                                                \

   581 } while(0)

   582 

   583 #define ERR(...) do {                                                         \

   584     if(LogLevel >= LogError)                                                  \

   585         AL_PRINT(__VA_ARGS__);                                                \

   586 } while(0)

   587 

   588 

   589 extern ALdouble ConeScale;

   590 extern ALdouble ZScale;

   591 

   592 extern ALint RTPrioLevel;

   593 

   594 #ifdef __cplusplus

   595 }

   596 #endif

   597 

   598 #endif
author	Robert McIntyre <rlm@mit.edu>
date	Tue, 25 Oct 2011 13:03:35 -0700
parents	f9476ff7637e
children	96298d83959c