62 lines
2.3 KiB
C++
62 lines
2.3 KiB
C++
#ifndef AUDIOFRAME_H
|
|
#define AUDIOFRAME_H
|
|
|
|
#include "typedefs.h"
|
|
|
|
|
|
static inline float undenormalise(volatile float f)
|
|
{
|
|
union {
|
|
uint32_t i;
|
|
float f;
|
|
} v;
|
|
|
|
v.f = f;
|
|
|
|
// original: return (v.i & 0x7f800000) == 0 ? 0.0f : f;
|
|
// version from Tim Blechmann:
|
|
return (v.i & 0x7f800000) < 0x08000000 ? 0.0f : f;
|
|
}
|
|
|
|
|
|
struct AudioFrame {
|
|
|
|
//left and right samples
|
|
float l,r;
|
|
|
|
_ALWAYS_INLINE_ const float& operator[](int idx) const { return idx==0?l:r; }
|
|
_ALWAYS_INLINE_ float& operator[](int idx) { return idx==0?l:r; }
|
|
|
|
_ALWAYS_INLINE_ AudioFrame operator+(const AudioFrame& p_frame) const { return AudioFrame(l+p_frame.l,r+p_frame.r); }
|
|
_ALWAYS_INLINE_ AudioFrame operator-(const AudioFrame& p_frame) const { return AudioFrame(l-p_frame.l,r-p_frame.r); }
|
|
_ALWAYS_INLINE_ AudioFrame operator*(const AudioFrame& p_frame) const { return AudioFrame(l*p_frame.l,r*p_frame.r); }
|
|
_ALWAYS_INLINE_ AudioFrame operator/(const AudioFrame& p_frame) const { return AudioFrame(l/p_frame.l,r/p_frame.r); }
|
|
|
|
_ALWAYS_INLINE_ AudioFrame operator+(float p_sample) const { return AudioFrame(l+p_sample,r+p_sample); }
|
|
_ALWAYS_INLINE_ AudioFrame operator-(float p_sample) const { return AudioFrame(l-p_sample,r-p_sample); }
|
|
_ALWAYS_INLINE_ AudioFrame operator*(float p_sample) const { return AudioFrame(l*p_sample,r*p_sample); }
|
|
_ALWAYS_INLINE_ AudioFrame operator/(float p_sample) const { return AudioFrame(l/p_sample,r/p_sample); }
|
|
|
|
_ALWAYS_INLINE_ void operator+=(const AudioFrame& p_frame) { l+=p_frame.l; r+=p_frame.r; }
|
|
_ALWAYS_INLINE_ void operator-=(const AudioFrame& p_frame) { l-=p_frame.l; r-=p_frame.r; }
|
|
_ALWAYS_INLINE_ void operator*=(const AudioFrame& p_frame) { l*=p_frame.l; r*=p_frame.r; }
|
|
_ALWAYS_INLINE_ void operator/=(const AudioFrame& p_frame) { l/=p_frame.l; r/=p_frame.r; }
|
|
|
|
_ALWAYS_INLINE_ void operator+=(float p_sample) { l+=p_sample; r+=p_sample; }
|
|
_ALWAYS_INLINE_ void operator-=(float p_sample) { l-=p_sample; r-=p_sample; }
|
|
_ALWAYS_INLINE_ void operator*=(float p_sample) { l*=p_sample; r*=p_sample; }
|
|
_ALWAYS_INLINE_ void operator/=(float p_sample) { l/=p_sample; r/=p_sample; }
|
|
|
|
_ALWAYS_INLINE_ void undenormalise() {
|
|
l = ::undenormalise(l);
|
|
r = ::undenormalise(r);
|
|
}
|
|
|
|
_ALWAYS_INLINE_ AudioFrame(float p_l, float p_r) {l=p_l; r=p_r;}
|
|
_ALWAYS_INLINE_ AudioFrame(const AudioFrame& p_frame) {l=p_frame.l; r=p_frame.r;}
|
|
|
|
_ALWAYS_INLINE_ AudioFrame() {}
|
|
};
|
|
|
|
#endif
|