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#ifndef _AL_SOURCE_H_
#define _AL_SOURCE_H_
#define MAX_SENDS 4
#include "alFilter.h"
#include "alu.h"
#include "AL/al.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
POINT_RESAMPLER = 0,
LINEAR_RESAMPLER,
CUBIC_RESAMPLER,
RESAMPLER_MAX,
RESAMPLER_MIN = -1,
RESAMPLER_DEFAULT = LINEAR_RESAMPLER
} resampler_t;
extern resampler_t DefaultResampler;
static const ALsizei ResamplerPadding[RESAMPLER_MAX] = {
0, /* Point */
1, /* Linear */
2, /* Cubic */
};
static const ALsizei ResamplerPrePadding[RESAMPLER_MAX] = {
0, /* Point */
0, /* Linear */
1, /* Cubic */
};
typedef struct ALbufferlistitem
{
struct ALbuffer *buffer;
struct ALbufferlistitem *next;
struct ALbufferlistitem *prev;
} ALbufferlistitem;
typedef struct ALsource
{
ALfloat flPitch;
ALfloat flGain;
ALfloat flOuterGain;
ALfloat flMinGain;
ALfloat flMaxGain;
ALfloat flInnerAngle;
ALfloat flOuterAngle;
ALfloat flRefDistance;
ALfloat flMaxDistance;
ALfloat flRollOffFactor;
ALfloat vPosition[3];
ALfloat vVelocity[3];
ALfloat vOrientation[3];
ALboolean bHeadRelative;
ALboolean bLooping;
ALenum DistanceModel;
resampler_t Resampler;
ALenum state;
ALuint position;
ALuint position_fraction;
struct ALbuffer *Buffer;
struct ALbufferlistitem *queue; // Linked list of buffers in queue
ALuint BuffersInQueue; // Number of buffers in queue
ALuint BuffersPlayed; // Number of buffers played on this loop
ALfilter DirectFilter;
struct {
struct ALeffectslot *Slot;
ALfilter WetFilter;
} Send[MAX_SENDS];
ALboolean DryGainHFAuto;
ALboolean WetGainAuto;
ALboolean WetGainHFAuto;
ALfloat OuterGainHF;
ALfloat AirAbsorptionFactor;
ALfloat RoomRolloffFactor;
ALfloat DopplerFactor;
ALint lOffset;
ALint lOffsetType;
// Source Type (Static, Streaming, or Undetermined)
ALint lSourceType;
// Current target parameters used for mixing
ALboolean NeedsUpdate;
struct {
ALint Step;
ALfloat DryGains[OUTPUTCHANNELS];
FILTER iirFilter;
ALfloat history[OUTPUTCHANNELS*2];
struct {
ALfloat WetGain;
FILTER iirFilter;
ALfloat history[OUTPUTCHANNELS];
} Send[MAX_SENDS];
} Params;
ALvoid (*Update)(struct ALsource *self, const ALCcontext *context);
// Index to itself
ALuint source;
} ALsource;
#define ALsource_Update(s,a) ((s)->Update(s,a))
ALvoid ReleaseALSources(ALCcontext *Context);
#ifdef __cplusplus
}
#endif
#endif
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