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#define __RT_MATH_H__ |
#define __RT_MATH_H__ |
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#include <math.h> |
#include <math.h> |
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#include <stdint.h> |
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#include "global.h" |
#include "global.h" |
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/// Needed for calculating frequency ratio used to pitch a sample |
/// Needed for calculating frequency ratio used to pitch a sample |
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class RTMathBase { |
class RTMathBase { |
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public: |
public: |
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/** |
/** |
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* Highly accurate time stamp. |
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*/ |
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typedef uint32_t time_stamp_t; |
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/** |
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* We read the processor's cycle count register as a reference |
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* for the real time. These are of course only abstract values |
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* with arbitrary time entity, but that's not a problem as long |
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* as we calculate relatively. |
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*/ |
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static time_stamp_t CreateTimeStamp(); |
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/** |
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* Calculates the frequency ratio for a pitch value given in cents |
* Calculates the frequency ratio for a pitch value given in cents |
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* (assuming equal tempered scale of course, divided into 12 |
* (assuming equal tempered scale of course, divided into 12 |
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* semitones per octave and 100 cents per semitone). |
* semitones per octave and 100 cents per semitone). |
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case CPP: { |
case CPP: { |
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return (int) a; |
return (int) a; |
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} |
} |
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#if ARCH_X86 |
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case ASM_X86_MMX_SSE: { |
case ASM_X86_MMX_SSE: { |
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int ret; |
int ret; |
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asm ( |
asm ( |
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); |
); |
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return ret; |
return ret; |
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} |
} |
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#endif // ARCH_X86 |
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} |
} |
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} |
} |
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|
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case CPP: { |
case CPP: { |
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return (float) a; |
return (float) a; |
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} |
} |
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#if ARCH_X86 |
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case ASM_X86_MMX_SSE: { |
case ASM_X86_MMX_SSE: { |
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float ret; |
float ret; |
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asm ( |
asm ( |
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); |
); |
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return ret; |
return ret; |
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} |
} |
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#endif // ARCH_X86 |
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} |
} |
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} |
} |
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|
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case CPP: { |
case CPP: { |
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return (a + b); |
return (a + b); |
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} |
} |
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#if ARCH_X86 |
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case ASM_X86_MMX_SSE: { |
case ASM_X86_MMX_SSE: { |
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float ret; |
float ret; |
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asm ( |
asm ( |
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); |
); |
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return ret; |
return ret; |
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} |
} |
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#endif // ARCH_X86 |
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} |
} |
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} |
} |
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case CPP: { |
case CPP: { |
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return (a - b); |
return (a - b); |
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} |
} |
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#if ARCH_X86 |
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case ASM_X86_MMX_SSE: { |
case ASM_X86_MMX_SSE: { |
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float ret; |
float ret; |
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asm ( |
asm ( |
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); |
); |
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return ret; |
return ret; |
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} |
} |
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#endif // ARCH_X86 |
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} |
} |
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} |
} |
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case CPP: { |
case CPP: { |
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return (a * b); |
return (a * b); |
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} |
} |
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#if ARCH_X86 |
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case ASM_X86_MMX_SSE: { |
case ASM_X86_MMX_SSE: { |
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float ret; |
float ret; |
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asm ( |
asm ( |
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); |
); |
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return ret; |
return ret; |
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} |
} |
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#endif // ARCH_X86 |
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} |
} |
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} |
} |
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case CPP: { |
case CPP: { |
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return (a / b); |
return (a / b); |
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} |
} |
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#if ARCH_X86 |
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case ASM_X86_MMX_SSE: { |
case ASM_X86_MMX_SSE: { |
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float ret; |
float ret; |
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asm ( |
asm ( |
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); |
); |
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return ret; |
return ret; |
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} |
} |
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#endif // ARCH_X86 |
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} |
} |
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} |
} |
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|
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case CPP: { |
case CPP: { |
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return (b < a) ? b : a; |
return (b < a) ? b : a; |
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} |
} |
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|
#if ARCH_X86 |
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case ASM_X86_MMX_SSE: { |
case ASM_X86_MMX_SSE: { |
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float ret; |
float ret; |
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asm ( |
asm ( |
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); |
); |
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return ret; |
return ret; |
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} |
} |
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#endif // ARCH_X86 |
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} |
} |
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} |
} |
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|
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case CPP: { |
case CPP: { |
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return (b > a) ? b : a; |
return (b > a) ? b : a; |
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} |
} |
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|
#if ARCH_X86 |
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case ASM_X86_MMX_SSE: { |
case ASM_X86_MMX_SSE: { |
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float ret; |
float ret; |
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asm ( |
asm ( |
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); |
); |
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return ret; |
return ret; |
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} |
} |
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#endif // ARCH_X86 |
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} |
} |
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} |
} |
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|
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case CPP: { |
case CPP: { |
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return fmodf(a, b); |
return fmodf(a, b); |
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} |
} |
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#if ARCH_X86 |
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case ASM_X86_MMX_SSE: { |
case ASM_X86_MMX_SSE: { |
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float ret; |
float ret; |
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asm ( |
asm ( |
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); |
); |
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return ret; |
return ret; |
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} |
} |
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#endif // ARCH_X86 |
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} |
} |
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} |
} |
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}; |
}; |