2 * OpenAL cross platform audio library
3 * Copyright (C) 2011 by authors.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
18 * Or go to http://www.gnu.org/copyleft/lgpl.html
34 #if defined(HAVE_GUIDDEF_H) || defined(HAVE_INITGUID_H)
43 DEFINE_GUID(KSDATAFORMAT_SUBTYPE_PCM
, 0x00000001, 0x0000, 0x0010, 0x80,0x00, 0x00,0xaa,0x00,0x38,0x9b,0x71);
44 DEFINE_GUID(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT
, 0x00000003, 0x0000, 0x0010, 0x80,0x00, 0x00,0xaa,0x00,0x38,0x9b,0x71);
46 DEFINE_GUID(IID_IDirectSoundNotify
, 0xb0210783, 0x89cd, 0x11d0, 0xaf,0x08, 0x00,0xa0,0xc9,0x25,0xcd,0x16);
48 DEFINE_GUID(CLSID_MMDeviceEnumerator
, 0xbcde0395, 0xe52f, 0x467c, 0x8e,0x3d, 0xc4,0x57,0x92,0x91,0x69,0x2e);
49 DEFINE_GUID(IID_IMMDeviceEnumerator
, 0xa95664d2, 0x9614, 0x4f35, 0xa7,0x46, 0xde,0x8d,0xb6,0x36,0x17,0xe6);
50 DEFINE_GUID(IID_IAudioClient
, 0x1cb9ad4c, 0xdbfa, 0x4c32, 0xb1,0x78, 0xc2,0xf5,0x68,0xa7,0x03,0xb2);
51 DEFINE_GUID(IID_IAudioRenderClient
, 0xf294acfc, 0x3146, 0x4483, 0xa7,0xbf, 0xad,0xdc,0xa7,0xc2,0x60,0xe2);
54 #include <devpropdef.h>
56 DEFINE_DEVPROPKEY(DEVPKEY_Device_FriendlyName
, 0xa45c254e, 0xdf1c, 0x4efd, 0x80,0x20, 0x67,0xd1,0x46,0xa8,0x50,0xe0, 14);
63 ALuint CPUCapFlags
= 0;
66 void FillCPUCaps(ALuint capfilter
)
70 #if defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || defined(_M_X64)
71 /* FIXME: We really should get this for all available CPUs in case different
72 * CPUs have different caps (is that possible on one machine?). */
76 char str
[sizeof(unsigned int[4])];
79 if(!__get_cpuid(0, &cpuinf
[0].regs
[0], &cpuinf
[0].regs
[1], &cpuinf
[0].regs
[2], &cpuinf
[0].regs
[3]))
80 ERR("Failed to get CPUID\n");
83 unsigned int maxfunc
= cpuinf
[0].regs
[0];
84 unsigned int maxextfunc
= 0;
86 if(__get_cpuid(0x80000000, &cpuinf
[0].regs
[0], &cpuinf
[0].regs
[1], &cpuinf
[0].regs
[2], &cpuinf
[0].regs
[3]))
87 maxextfunc
= cpuinf
[0].regs
[0];
88 TRACE("Detected max CPUID function: 0x%x (ext. 0x%x)\n", maxfunc
, maxextfunc
);
90 TRACE("Vendor ID: \"%.4s%.4s%.4s\"\n", cpuinf
[0].str
+4, cpuinf
[0].str
+12, cpuinf
[0].str
+8);
91 if(maxextfunc
>= 0x80000004 &&
92 __get_cpuid(0x80000002, &cpuinf
[0].regs
[0], &cpuinf
[0].regs
[1], &cpuinf
[0].regs
[2], &cpuinf
[0].regs
[3]) &&
93 __get_cpuid(0x80000003, &cpuinf
[1].regs
[0], &cpuinf
[1].regs
[1], &cpuinf
[1].regs
[2], &cpuinf
[1].regs
[3]) &&
94 __get_cpuid(0x80000004, &cpuinf
[2].regs
[0], &cpuinf
[2].regs
[1], &cpuinf
[2].regs
[2], &cpuinf
[2].regs
[3]))
95 TRACE("Name: \"%.16s%.16s%.16s\"\n", cpuinf
[0].str
, cpuinf
[1].str
, cpuinf
[2].str
);
98 __get_cpuid(1, &cpuinf
[0].regs
[0], &cpuinf
[0].regs
[1], &cpuinf
[0].regs
[2], &cpuinf
[0].regs
[3]))
101 if((cpuinf
[0].regs
[3]&bit_SSE
))
109 /* Assume Neon support if compiled with it */
110 caps
|= CPU_CAP_NEON
;
113 TRACE("Got caps:%s%s%s\n", ((caps
&CPU_CAP_SSE
)?((capfilter
&CPU_CAP_SSE
)?" SSE":" (SSE)"):""),
114 ((caps
&CPU_CAP_NEON
)?((capfilter
&CPU_CAP_NEON
)?" Neon":" (Neon)"):""),
115 ((!caps
)?" -none-":""));
116 CPUCapFlags
= caps
& capfilter
;
120 void *al_malloc(size_t alignment
, size_t size
)
122 #if defined(HAVE_ALIGNED_ALLOC)
123 size
= (size
+(alignment
-1))&~(alignment
-1);
124 return aligned_alloc(alignment
, size
);
125 #elif defined(HAVE_POSIX_MEMALIGN)
127 if(posix_memalign(&ret
, alignment
, size
) == 0)
130 #elif defined(HAVE__ALIGNED_MALLOC)
131 return _aligned_malloc(size
, alignment
);
133 char *ret
= malloc(size
+alignment
);
137 while(((ALintptrEXT
)ret
&(alignment
-1)) != 0)
144 void *al_calloc(size_t alignment
, size_t size
)
146 void *ret
= al_malloc(alignment
, size
);
147 if(ret
) memset(ret
, 0, size
);
151 void al_free(void *ptr
)
153 #if defined(HAVE_ALIGNED_ALLOC) || defined(HAVE_POSIX_MEMALIGN) || defined(HAVE__ALIGNED_MALLOC)
161 } while(*finder
== 0x55);
168 void pthread_once(pthread_once_t
*once
, void (*callback
)(void))
171 while((ret
=InterlockedExchange(once
, 1)) == 1)
175 InterlockedExchange(once
, 2);
179 int pthread_key_create(pthread_key_t
*key
, void (*callback
)(void*))
183 InsertUIntMapEntry(&TlsDestructor
, *key
, callback
);
187 int pthread_key_delete(pthread_key_t key
)
189 InsertUIntMapEntry(&TlsDestructor
, key
, NULL
);
194 void *pthread_getspecific(pthread_key_t key
)
195 { return TlsGetValue(key
); }
197 int pthread_setspecific(pthread_key_t key
, void *val
)
199 TlsSetValue(key
, val
);
204 void *LoadLib(const char *name
)
205 { return LoadLibraryA(name
); }
206 void CloseLib(void *handle
)
207 { FreeLibrary((HANDLE
)handle
); }
208 void *GetSymbol(void *handle
, const char *name
)
212 ret
= (void*)GetProcAddress((HANDLE
)handle
, name
);
214 ERR("Failed to load %s\n", name
);
218 WCHAR
*strdupW(const WCHAR
*str
)
228 ret
= calloc(sizeof(WCHAR
), len
+1);
230 memcpy(ret
, str
, sizeof(WCHAR
)*len
);
237 #ifdef HAVE_PTHREAD_NP_H
238 #include <pthread_np.h>
242 void InitializeCriticalSection(CRITICAL_SECTION
*cs
)
244 pthread_mutexattr_t attrib
;
247 ret
= pthread_mutexattr_init(&attrib
);
250 ret
= pthread_mutexattr_settype(&attrib
, PTHREAD_MUTEX_RECURSIVE
);
251 #ifdef HAVE_PTHREAD_NP_H
253 ret
= pthread_mutexattr_setkind_np(&attrib
, PTHREAD_MUTEX_RECURSIVE
);
256 ret
= pthread_mutex_init(cs
, &attrib
);
259 pthread_mutexattr_destroy(&attrib
);
261 void DeleteCriticalSection(CRITICAL_SECTION
*cs
)
264 ret
= pthread_mutex_destroy(cs
);
267 void EnterCriticalSection(CRITICAL_SECTION
*cs
)
270 ret
= pthread_mutex_lock(cs
);
273 void LeaveCriticalSection(CRITICAL_SECTION
*cs
)
276 ret
= pthread_mutex_unlock(cs
);
280 /* NOTE: This wrapper isn't quite accurate as it returns an ALuint, as opposed
281 * to the expected DWORD. Both are defined as unsigned 32-bit types, however.
282 * Additionally, Win32 is supposed to measure the time since Windows started,
283 * as opposed to the actual time. */
284 ALuint
timeGetTime(void)
286 #if _POSIX_TIMERS > 0
290 #if defined(_POSIX_MONOTONIC_CLOCK) && (_POSIX_MONOTONIC_CLOCK >= 0)
291 #if _POSIX_MONOTONIC_CLOCK == 0
292 static int hasmono
= 0;
293 if(hasmono
> 0 || (hasmono
== 0 &&
294 (hasmono
=sysconf(_SC_MONOTONIC_CLOCK
)) > 0))
296 ret
= clock_gettime(CLOCK_MONOTONIC
, &ts
);
299 ret
= clock_gettime(CLOCK_REALTIME
, &ts
);
302 return ts
.tv_nsec
/1000000 + ts
.tv_sec
*1000;
307 ret
= gettimeofday(&tv
, NULL
);
310 return tv
.tv_usec
/1000 + tv
.tv_sec
*1000;
316 struct timespec tv
, rem
;
317 tv
.tv_nsec
= (t
*1000000)%1000000000;
320 while(nanosleep(&tv
, &rem
) == -1 && errno
== EINTR
)
326 void *LoadLib(const char *name
)
332 handle
= dlopen(name
, RTLD_NOW
);
333 if((err
=dlerror()) != NULL
)
337 void CloseLib(void *handle
)
339 void *GetSymbol(void *handle
, const char *name
)
345 sym
= dlsym(handle
, name
);
346 if((err
=dlerror()) != NULL
)
348 WARN("Failed to load %s: %s\n", name
, err
);
358 void al_print(const char *func
, const char *fmt
, ...)
363 i
= snprintf(str
, sizeof(str
), "AL lib: %s: ", func
);
364 if(i
< (int)sizeof(str
) && i
> 0)
368 vsnprintf(str
+i
, sizeof(str
)-i
, fmt
, ap
);
371 str
[sizeof(str
)-1] = 0;
373 fprintf(LogFile
, "%s", str
);
378 void SetRTPriority(void)
380 ALboolean failed
= AL_FALSE
;
384 failed
= !SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_TIME_CRITICAL
);
385 #elif defined(HAVE_PTHREAD_SETSCHEDPARAM) && !defined(__OpenBSD__)
388 struct sched_param param
;
389 /* Use the minimum real-time priority possible for now (on Linux this
390 * should be 1 for SCHED_RR) */
391 param
.sched_priority
= sched_get_priority_min(SCHED_RR
);
392 failed
= !!pthread_setschedparam(pthread_self(), SCHED_RR
, ¶m
);
395 /* Real-time priority not available */
396 failed
= (RTPrioLevel
>0);
399 ERR("Failed to set priority level for thread\n");
403 static void Lock(volatile ALenum
*l
)
405 while(ExchangeInt(l
, AL_TRUE
) == AL_TRUE
)
409 static void Unlock(volatile ALenum
*l
)
411 ExchangeInt(l
, AL_FALSE
);
414 void RWLockInit(RWLock
*lock
)
416 lock
->read_count
= 0;
417 lock
->write_count
= 0;
418 lock
->read_lock
= AL_FALSE
;
419 lock
->read_entry_lock
= AL_FALSE
;
420 lock
->write_lock
= AL_FALSE
;
423 void ReadLock(RWLock
*lock
)
425 Lock(&lock
->read_entry_lock
);
426 Lock(&lock
->read_lock
);
427 if(IncrementRef(&lock
->read_count
) == 1)
428 Lock(&lock
->write_lock
);
429 Unlock(&lock
->read_lock
);
430 Unlock(&lock
->read_entry_lock
);
433 void ReadUnlock(RWLock
*lock
)
435 if(DecrementRef(&lock
->read_count
) == 0)
436 Unlock(&lock
->write_lock
);
439 void WriteLock(RWLock
*lock
)
441 if(IncrementRef(&lock
->write_count
) == 1)
442 Lock(&lock
->read_lock
);
443 Lock(&lock
->write_lock
);
446 void WriteUnlock(RWLock
*lock
)
448 Unlock(&lock
->write_lock
);
449 if(DecrementRef(&lock
->write_count
) == 0)
450 Unlock(&lock
->read_lock
);
454 void InitUIntMap(UIntMap
*map
, ALsizei limit
)
460 RWLockInit(&map
->lock
);
463 void ResetUIntMap(UIntMap
*map
)
465 WriteLock(&map
->lock
);
470 WriteUnlock(&map
->lock
);
473 ALenum
InsertUIntMapEntry(UIntMap
*map
, ALuint key
, ALvoid
*value
)
477 WriteLock(&map
->lock
);
481 ALsizei high
= map
->size
- 1;
484 ALsizei mid
= low
+ (high
-low
)/2;
485 if(map
->array
[mid
].key
< key
)
490 if(map
->array
[low
].key
< key
)
495 if(pos
== map
->size
|| map
->array
[pos
].key
!= key
)
497 if(map
->size
== map
->limit
)
499 WriteUnlock(&map
->lock
);
500 return AL_OUT_OF_MEMORY
;
503 if(map
->size
== map
->maxsize
)
508 newsize
= (map
->maxsize
? (map
->maxsize
<<1) : 4);
509 if(newsize
>= map
->maxsize
)
510 temp
= realloc(map
->array
, newsize
*sizeof(map
->array
[0]));
513 WriteUnlock(&map
->lock
);
514 return AL_OUT_OF_MEMORY
;
517 map
->maxsize
= newsize
;
521 memmove(&map
->array
[pos
+1], &map
->array
[pos
],
522 (map
->size
-pos
)*sizeof(map
->array
[0]));
525 map
->array
[pos
].key
= key
;
526 map
->array
[pos
].value
= value
;
527 WriteUnlock(&map
->lock
);
532 ALvoid
*RemoveUIntMapKey(UIntMap
*map
, ALuint key
)
535 WriteLock(&map
->lock
);
539 ALsizei high
= map
->size
- 1;
542 ALsizei mid
= low
+ (high
-low
)/2;
543 if(map
->array
[mid
].key
< key
)
548 if(map
->array
[low
].key
== key
)
550 ptr
= map
->array
[low
].value
;
551 if(low
< map
->size
-1)
552 memmove(&map
->array
[low
], &map
->array
[low
+1],
553 (map
->size
-1-low
)*sizeof(map
->array
[0]));
557 WriteUnlock(&map
->lock
);
561 ALvoid
*LookupUIntMapKey(UIntMap
*map
, ALuint key
)
564 ReadLock(&map
->lock
);
568 ALsizei high
= map
->size
- 1;
571 ALsizei mid
= low
+ (high
-low
)/2;
572 if(map
->array
[mid
].key
< key
)
577 if(map
->array
[low
].key
== key
)
578 ptr
= map
->array
[low
].value
;
580 ReadUnlock(&map
->lock
);