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411 lines (336 loc) · 7.76 KB
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#ifndef _FLOAT_UTILS_
#define _FLOAT_UTILS_
/*******************************************************
*
* Utility functions for float vector types
* float2, float3, float4
*
******************************************************/
#include <vector_functions.h>
/* OPERATORS */
inline __host__ __device__ float2 operator *(float2 a, float2 b)
{
return make_float2(a.x*b.x, a.y*b.y);
}
inline __host__ __device__ float3 operator *(float3 a, float3 b)
{
return make_float3(a.x*b.x, a.y*b.y, a.z*b.z);
}
inline __host__ __device__ float4 operator *(float4 a, float4 b)
{
return make_float4(a.x*b.x, a.y*b.y, a.z*b.z, a.w*b.w);
}
inline __host__ __device__ float2 operator *(float f, float2 v)
{
return make_float2(v.x*f, v.y*f);
}
inline __host__ __device__ float3 operator *(float f, float3 v)
{
return make_float3(v.x*f, v.y*f, v.z*f);
}
inline __host__ __device__ float4 operator *(float f, float4 v)
{
return make_float4(v.x*f, v.y*f, v.z*f, v.w*f);
}
inline __host__ __device__ float2 operator *(float2 v, float f)
{
return make_float2(v.x*f, v.y*f);
}
inline __host__ __device__ float3 operator *(float3 v, float f)
{
return make_float3(v.x*f, v.y*f, v.z*f);
}
inline __host__ __device__ float4 operator *(float4 v, float f)
{
return make_float4(v.x*f, v.y*f, v.z*f, v.w*f);
}
inline __host__ __device__ float2 operator +(float2 a, float2 b)
{
return make_float2(a.x+b.x, a.y+b.y);
}
inline __host__ __device__ float3 operator +(float3 a, float3 b)
{
return make_float3(a.x+b.x, a.y+b.y, a.z+b.z);
}
inline __host__ __device__ float4 operator +(float4 a, float4 b)
{
return make_float4(a.x+b.x, a.y+b.y, a.z+b.z, a.w+b.w);
}
inline __host__ __device__ void operator +=(float2 &b, float2 a)
{
b.x += a.x;
b.y += a.y;
}
inline __host__ __device__ void operator +=(float3 &b, float3 a)
{
b.x += a.x;
b.y += a.y;
b.z += a.z;
}
inline __host__ __device__ void operator +=(float4 &b, float4 a)
{
b.x += a.x;
b.y += a.y;
b.z += a.z;
b.w += a.w;
}
inline __host__ __device__ float2 operator -(float2 a, float2 b)
{
return make_float2(a.x-b.x, a.y-b.y);
}
inline __host__ __device__ float3 operator -(float3 a, float3 b)
{
return make_float3(a.x-b.x, a.y-b.y, a.z-b.z);
}
inline __host__ __device__ float4 operator -(float4 a, float4 b)
{
return make_float4(a.x-b.x, a.y-b.y, a.z-b.z, a.w-b.w);
}
inline __host__ __device__ void operator -=(float2 & b, float2 a)
{
b.x -= a.x;
b.y -= a.y;
}
inline __host__ __device__ void operator -=(float3 & b, float3 a)
{
b.x -= a.x;
b.y -= a.y;
b.z -= a.z;
}
inline __host__ __device__ void operator -=(float4 & b, float4 a)
{
b.x -= a.x;
b.y -= a.y;
b.z -= a.z;
b.w -= a.w;
}
inline __host__ __device__ float2 operator /(float2 a, float2 b)
{
return make_float2(a.x/b.x, a.y/b.y);
}
inline __host__ __device__ float3 operator /(float3 a, float3 b)
{
return make_float3(a.x/b.x, a.y/b.y, a.z/b.z);
}
inline __host__ __device__ float4 operator /(float4 a, float4 b)
{
return make_float4(a.x/b.x, a.y/b.y, a.z/b.z, a.w/b.w);
}
inline __host__ __device__ float2 operator /(float2 a, float f)
{
return make_float2(a.x/f, a.y/f);
}
inline __host__ __device__ float3 operator /(float3 a, float f)
{
return make_float3(a.x/f, a.y/f, a.z/f);
}
inline __host__ __device__ float4 operator /(float4 a, float f)
{
return make_float4(a.x/f, a.y/f, a.z/f, a.w/f);
}
inline __host__ __device__ void operator /=(float2 &b, float f)
{
b.x /= f;
b.y /= f;
}
inline __host__ __device__ void operator /=(float3 &b, float f)
{
b.x /= f;
b.y /= f;
b.z /= f;
}
inline __host__ __device__ void operator /=(float4 &b, float f)
{
b.x /= f;
b.y /= f;
b.z /= f;
b.w /= f;
}
inline __host__ __device__ void operator /=(float2 &b, float2 a)
{
b.x /= a.x;
b.y /= a.y;
}
inline __host__ __device__ void operator /=(float3 &b, float3 a)
{
b.x /= a.x;
b.y /= a.y;
b.z /= a.z;
}
inline __host__ __device__ void operator /=(float4 &b, float4 a)
{
b.x /= a.x;
b.y /= a.y;
b.z /= a.z;
b.w /= a.w;
}
//inline __host__ __device__ float operator[](float2 &v, unsigned int i )
//{
// return ((float*)&v)[i];
//}
/* OPERATORS END */
inline __host__ __device__ float prod(float2 f)
{
return f.x*f.y;
}
inline __host__ __device__ float prod(float3 f)
{
return f.x*f.y*f.z;
}
inline __host__ __device__ float prod(float4 f)
{
return f.x*f.y*f.z*f.w;
}
inline __host__ __device__ float2 float4_to_float2(float4 f)
{
float2 val;
val.x = f.x;
val.y = f.y;
return val;
}
inline __host__ __device__ float3 float4_to_float3(float4 f)
{
float3 val;
val.x = f.x;
val.y = f.y;
val.z = f.z;
return val;
}
inline __host__ __device__ float dot( float2 a, float2 b )
{
return a.x * b.x + a.y * b.y;
}
inline __host__ __device__ float dot( float3 a, float3 b )
{
return a.x * b.x + a.y * b.y + a.z * b.z;
}
inline __host__ __device__ float dot( float4 a, float4 b )
{
return a.x * b.x + a.y * b.y + a.z * b.z + a.w * b.w;
}
inline __host__ __device__ float2 normalize( float2 v )
{
return v * (1.0f/sqrtf(v.x*v.x + v.y*v.y ));
}
inline __host__ __device__ float3 normalize( float3 v )
{
return v * (1.0f/sqrtf(v.x*v.x + v.y*v.y + v.z*v.z ));
}
inline __host__ __device__ float4 normalize( float4 v )
{
return v * (1.0f/sqrtf(v.x*v.x + v.y*v.y + v.z*v.z + v.w*v.w));
}
inline __host__ __device__ float length( float v )
{
return fabs(v);
}
inline __host__ __device__ float length( float2 v )
{
return sqrtf( v.x*v.x + v.y*v.y );
}
inline __host__ __device__ float length( float3 v )
{
return sqrtf( v.x*v.x + v.y*v.y + v.z*v.z );
}
inline __host__ __device__ float length( float4 v )
{
return sqrtf( v.x*v.x + v.y*v.y + v.z*v.z + v.w*v.w );
}
inline __host__ __device__ float squared_length( float2 v )
{
return v.x*v.x + v.y*v.y;
}
inline __host__ __device__ float squared_length( float3 v )
{
return v.x*v.x + v.y*v.y + v.z*v.z;
}
inline __host__ __device__ float squared_length( float4 v )
{
return v.x*v.x + v.y*v.y + v.z*v.z + v.w*v.w;
}
inline __host__ __device__ float4 float2_to_float4_with_ones(float2 ui)
{
float4 val;
val.x = ui.x;
val.y = ui.y;
val.z = 1;
val.w = 1;
return val;
}
inline __host__ __device__ float3 float2_to_float3_with_ones(float2 ui)
{
float3 val;
val.x = ui.x;
val.y = ui.y;
val.z = 1;
return val;
}
inline __host__ __device__ float get_last_dim(float2 ui)
{
return ui.y;
}
inline __host__ __device__ float get_last_dim(float3 ui)
{
return ui.z;
}
inline __host__ __device__ float get_last_dim(float4 ui)
{
return ui.w;
}
inline __host__ __device__ float crop_last_dim(float2 ui)
{
return ui.x;
}
inline __host__ __device__ float2 crop_last_dim(float3 ui)
{
return make_float2( ui.x, ui.y );
}
inline __host__ __device__ float3 crop_last_dim(float4 ui)
{
return make_float3( ui.x, ui.y, ui.z );
}
inline __host__ __device__ void zero(float *z)
{
*z = 0.0f;
}
inline __host__ __device__ void zero(float2 *z)
{
z->x = 0.0f;
z->y = 0.0f;
}
inline __host__ __device__ void zero(float3 *z)
{
z->x = 0.0f;
z->y = 0.0f;
z->z = 0.0f;
}
inline __host__ __device__ void zero(float4 *z)
{
z->x = 0.0f;
z->y = 0.0f;
z->z = 0.0f;
z->w = 0.0f;
}
inline __host__ __device__ void one(float *z)
{
*z = 1.0f;
}
inline __host__ __device__ void one(float2 *z)
{
z->x = 1.0f;
z->y = 1.0f;
}
inline __host__ __device__ void one(float3 *z)
{
z->x = 1.0f;
z->y = 1.0f;
z->z = 1.0f;
}
inline __host__ __device__ void one(float4 *z)
{
z->x = 1.0f;
z->y = 1.0f;
z->z = 1.0f;
z->w = 1.0f;
}
#endif _FLOAT_UTILS_