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#ifndef AL_MAIN_H
#define AL_MAIN_H
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#ifdef HAVE_FENV_H
#include <fenv.h>
#endif
#include "AL/al.h"
#include "AL/alc.h"
#include "AL/alext.h"
#ifdef _WIN32
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0500
#endif
#include <windows.h>
#else
#include <assert.h>
#include <pthread.h>
#ifdef HAVE_PTHREAD_NP_H
#include <pthread_np.h>
#endif
#include <sys/time.h>
#include <time.h>
#include <errno.h>
#define IsBadWritePtr(a,b) (0)
typedef pthread_mutex_t CRITICAL_SECTION;
static inline void EnterCriticalSection(CRITICAL_SECTION *cs)
{
int ret;
ret = pthread_mutex_lock(cs);
assert(ret == 0);
}
static inline void LeaveCriticalSection(CRITICAL_SECTION *cs)
{
int ret;
ret = pthread_mutex_unlock(cs);
assert(ret == 0);
}
static inline void InitializeCriticalSection(CRITICAL_SECTION *cs)
{
pthread_mutexattr_t attrib;
int ret;
ret = pthread_mutexattr_init(&attrib);
assert(ret == 0);
ret = pthread_mutexattr_settype(&attrib, PTHREAD_MUTEX_RECURSIVE);
#ifdef HAVE_PTHREAD_NP_H
if(ret != 0)
ret = pthread_mutexattr_setkind_np(&attrib, PTHREAD_MUTEX_RECURSIVE);
#endif
assert(ret == 0);
ret = pthread_mutex_init(cs, &attrib);
assert(ret == 0);
pthread_mutexattr_destroy(&attrib);
}
static inline void DeleteCriticalSection(CRITICAL_SECTION *cs)
{
int ret;
ret = pthread_mutex_destroy(cs);
assert(ret == 0);
}
/* NOTE: This wrapper isn't quite accurate as it returns an ALuint, as opposed
* to the expected DWORD. Both are defined as unsigned 32-bit types, however.
* Additionally, Win32 is supposed to measure the time since Windows started,
* as opposed to the actual time. */
static inline ALuint timeGetTime(void)
{
struct timeval tv;
int ret;
ret = gettimeofday(&tv, NULL);
assert(ret == 0);
return tv.tv_usec/1000 + tv.tv_sec*1000;
}
static inline void Sleep(ALuint t)
{
struct timespec tv, rem;
tv.tv_nsec = (t*1000000)%1000000000;
tv.tv_sec = t/1000;
while(nanosleep(&tv, &rem) == -1 && errno == EINTR)
tv = rem;
}
#define min(x,y) (((x)<(y))?(x):(y))
#define max(x,y) (((x)>(y))?(x):(y))
#endif
#include "alListener.h"
#include "alu.h"
#ifdef __cplusplus
extern "C" {
#endif
static __inline void al_print(const char *fname, unsigned int line, const char *fmt, ...)
{
const char *fn;
char str[256];
int i;
fn = strrchr(fname, '/');
if(!fn) fn = strrchr(fname, '\\');;
if(!fn) fn = fname;
else fn += 1;
i = snprintf(str, sizeof(str), "AL lib: %s:%d: ", fn, line);
if(i < (int)sizeof(str) && i > 0)
{
va_list ap;
va_start(ap, fmt);
vsnprintf(str+i, sizeof(str)-i, fmt, ap);
va_end(ap);
}
str[sizeof(str)-1] = 0;
fprintf(stderr, "%s", str);
}
#define AL_PRINT(...) al_print(__FILE__, __LINE__, __VA_ARGS__)
#define SWMIXER_OUTPUT_RATE 44100
#define SPEEDOFSOUNDMETRESPERSEC (343.3f)
#define AIRABSORBGAINDBHF (-0.05f)
#define LOWPASSFREQCUTOFF (5000)
#define QUADRANT_NUM 128
#define LUT_NUM (4 * QUADRANT_NUM)
typedef struct {
ALCboolean (*OpenPlayback)(ALCdevice*, const ALCchar*);
void (*ClosePlayback)(ALCdevice*);
ALCboolean (*StartContext)(ALCdevice*, ALCcontext*);
void (*StopContext)(ALCdevice*, ALCcontext*);
ALCboolean (*OpenCapture)(ALCdevice*, const ALCchar*);
void (*CloseCapture)(ALCdevice*);
void (*StartCapture)(ALCdevice*);
void (*StopCapture)(ALCdevice*);
void (*CaptureSamples)(ALCdevice*, void*, ALCuint);
ALCuint (*AvailableSamples)(ALCdevice*);
} BackendFuncs;
void alc_alsa_init(BackendFuncs *func_list);
void alc_oss_init(BackendFuncs *func_list);
void alc_solaris_init(BackendFuncs *func_list);
void alcDSoundInit(BackendFuncs *func_list);
void alcWinMMInit(BackendFuncs *FuncList);
void alc_pa_init(BackendFuncs *func_list);
void alc_wave_init(BackendFuncs *func_list);
void alc_pulse_init(BackendFuncs *func_list);
struct ALCdevice_struct
{
ALboolean IsCaptureDevice;
ALuint Frequency;
ALuint UpdateSize;
ALuint BufferSize;
ALenum Format;
ALCchar *szDeviceName;
// Maximum number of sources that can be created
ALuint MaxNoOfSources;
// Maximum number of slots that can be created
ALuint AuxiliaryEffectSlotMax;
ALint lNumMonoSources;
ALint lNumStereoSources;
ALuint NumAuxSends;
// Linked List of Buffers for this device
struct ALbuffer *Buffers;
ALuint BufferCount;
// Linked List of Effects for this device
struct ALeffect *EffectList;
ALuint EffectCount;
// Linked List of Filters for this device
struct ALfilter *FilterList;
ALuint FilterCount;
// Linked List of Databuffers for this device
struct ALdatabuffer *Databuffers;
ALuint DatabufferCount;
// Context created on this device
ALCcontext *Context;
BackendFuncs *Funcs;
void *ExtraData; // For the backend's use
ALCdevice *next;
};
#define ALCdevice_OpenPlayback(a,b) ((a)->Funcs->OpenPlayback((a), (b)))
#define ALCdevice_ClosePlayback(a) ((a)->Funcs->ClosePlayback((a)))
#define ALCdevice_StartContext(a,b) ((a)->Funcs->StartContext((a), (b)))
#define ALCdevice_StopContext(a,b) ((a)->Funcs->StopContext((a), (b)))
#define ALCdevice_OpenCapture(a,b) ((a)->Funcs->OpenCapture((a), (b)))
#define ALCdevice_CloseCapture(a) ((a)->Funcs->CloseCapture((a)))
#define ALCdevice_StartCapture(a) ((a)->Funcs->StartCapture((a)))
#define ALCdevice_StopCapture(a) ((a)->Funcs->StopCapture((a)))
#define ALCdevice_CaptureSamples(a,b,c) ((a)->Funcs->CaptureSamples((a), (b), (c)))
#define ALCdevice_AvailableSamples(a) ((a)->Funcs->AvailableSamples((a)))
struct ALCcontext_struct
{
ALlistener Listener;
struct ALsource *Source;
ALuint SourceCount;
struct ALeffectslot *AuxiliaryEffectSlot;
ALuint AuxiliaryEffectSlotCount;
struct ALdatabuffer *SampleSource;
struct ALdatabuffer *SampleSink;
ALenum LastError;
ALboolean InUse;
ALuint Frequency;
ALenum DistanceModel;
ALfloat DopplerFactor;
ALfloat DopplerVelocity;
ALfloat flSpeedOfSound;
ALfloat PanningLUT[OUTPUTCHANNELS * LUT_NUM];
ALint NumChan;
ALfloat ChannelMatrix[OUTPUTCHANNELS][OUTPUTCHANNELS];
ALCdevice *Device;
const ALCchar *ExtensionList;
struct bs2b *bs2b;
ALCcontext *next;
};
ALCvoid ReleaseALC(ALCvoid);
ALCchar *AppendDeviceList(char *name);
ALCchar *AppendAllDeviceList(char *name);
ALCchar *AppendCaptureDeviceList(char *name);
ALCvoid SetALCError(ALenum errorCode);
ALCvoid SuspendContext(ALCcontext *context);
ALCvoid ProcessContext(ALCcontext *context);
ALvoid *StartThread(ALuint (*func)(ALvoid*), ALvoid *ptr);
ALuint StopThread(ALvoid *thread);
ALCcontext *GetContextSuspended(void);
typedef struct RingBuffer RingBuffer;
RingBuffer *CreateRingBuffer(ALsizei frame_size, ALsizei length);
void DestroyRingBuffer(RingBuffer *ring);
ALsizei RingBufferSize(RingBuffer *ring);
void WriteRingBuffer(RingBuffer *ring, const ALubyte *data, ALsizei len);
void ReadRingBuffer(RingBuffer *ring, ALubyte *data, ALsizei len);
void ReadALConfig(void);
void FreeALConfig(void);
const char *GetConfigValue(const char *blockName, const char *keyName, const char *def);
int GetConfigValueInt(const char *blockName, const char *keyName, int def);
float GetConfigValueFloat(const char *blockName, const char *keyName, float def);
#ifdef __cplusplus
}
#endif
#endif
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