From ecfe6ab65bd1fc2c7f5733fe6ef4e6ddaac44a26 Mon Sep 17 00:00:00 2001 From: "madmaxoft@gmail.com" Date: Sun, 23 Sep 2012 22:09:57 +0000 Subject: Source files cleanup: The rest of the files renamed. git-svn-id: http://mc-server.googlecode.com/svn/trunk@887 0a769ca7-a7f5-676a-18bf-c427514a06d6 --- source/Noise.h | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 source/Noise.h (limited to 'source/Noise.h') diff --git a/source/Noise.h b/source/Noise.h new file mode 100644 index 000000000..68428d33e --- /dev/null +++ b/source/Noise.h @@ -0,0 +1,94 @@ +#pragma once + +// Some settings +#define NOISE_USE_INLINE 1 +#define NOISE_USE_SSE 0 + +// Do not touch +#if NOISE_USE_INLINE + #ifdef _MSC_VER + #define __NOISE_INLINE__ __forceinline + #else + #define __NOISE_INLINE__ inline + #endif // _MSC_VER +#else + #define __NOISE_INLINE__ +#endif + +#if NOISE_USE_SSE +# include +#endif + + + + + +class cNoise +{ +public: + cNoise( unsigned int a_Seed ); + ~cNoise(); + +#if NOISE_USE_SSE + __m128 SSE_IntNoise2D( int a_X1, int a_Y1, int a_X2, int a_Y2, int a_X3, int a_Y3, int a_X4, int a_Y4 ) const; +#endif + + __NOISE_INLINE__ float IntNoise( int a_X ) const; + __NOISE_INLINE__ float IntNoise2D( int a_X, int a_Y ) const; + __NOISE_INLINE__ float IntNoise3D( int a_X, int a_Y, int a_Z ) const; + + // Note: These functions have a mod8-irregular chance - each of the mod8 remainders has different chance of occurrence. Divide by 8 to rectify. + __NOISE_INLINE__ int IntNoise1DInt( int a_X ) const; + __NOISE_INLINE__ int IntNoise2DInt( int a_X, int a_Y ) const; + __NOISE_INLINE__ int IntNoise3DInt( int a_X, int a_Y, int a_Z ) const; + + float LinearNoise1D( float a_X ) const; + float CosineNoise1D( float a_X ) const; + float CubicNoise1D( float a_X ) const; + float SmoothNoise1D( int a_X ) const; + + float LinearNoise2D( float a_X, float a_Y ) const; + float CosineNoise2D( float a_X, float a_Y ) const; + float CubicNoise2D( float a_X, float a_Y ) const; + float SSE_CubicNoise2D( float a_X, float a_Y ) const; + + float CosineNoise3D( float a_X, float a_Y, float a_Z ) const; + float CubicNoise3D( float a_X, float a_Y, float a_Z ) const; + + void SetSeed( unsigned int a_Seed ) { m_Seed = a_Seed; } + + __NOISE_INLINE__ static float CubicInterpolate( float a_A, float a_B, float a_C, float a_D, float a_Pct ); + __NOISE_INLINE__ static float CosineInterpolate( float a_A, float a_B, float a_Pct ); + __NOISE_INLINE__ static float LinearInterpolate( float a_A, float a_B, float a_Pct ); + +private: + +#if NOISE_USE_SSE + __m128 CubicInterpolate4( const __m128 & a_A, const __m128 & a_B, const __m128 & a_C, const __m128 & a_D, float a_Pct ) const; +#endif + + unsigned int m_Seed; +}; + + + + + +/// Linearly interpolates values in the array between the anchor points +extern void IntArrayLinearInterpolate2D( + int * a_Array, + int a_SizeX, int a_SizeY, // Dimensions of the array + int a_AnchorStepX, int a_AnchorStepY // Distances between the anchor points in each direction +); + + + + + +#if NOISE_USE_INLINE + #include "Noise.inc" +#endif + + + + -- cgit v1.2.3