filters.c File Reference

#include <CL/cl.h>
#include <device/device_config.h>
#include <device/opencl/check.h>
#include <device/opencl/jit.h>
#include <device/opencl/prgm_lib.h>
#include <stdio.h>
#include <stdlib.h>
#include "filter_kernels.cl.h"

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Functions
void	opencl_smooth_step (void *x, real *edge0, real *edge1, int *n)
void	opencl_step_function (void *x, real *edge, real *left, real *right, int *n)
void	opencl_permeability (void *x, real *k_0, real *k_1, real *q, int *n)

Function Documentation

opencl_permeability()

void opencl_permeability	(	void *	x,
		real *	k_0,
		real *	k_1,
		real *	q,
		int *	n
	)

Fortran wrapper for the permeability filter

Parameters

x	array to apply the permeability filter on
k_0	lower bound of the permeability
k_1	upper bound of the permeability
q	parameter
n	size of the array

Definition at line 126 of file filters.c.

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opencl_smooth_step()

void opencl_smooth_step	(	void *	x,
		real *	edge0,
		real *	edge1,
		int *	n
	)

Fortran wrapper for 2nd order smooth_step

Compute the smooth step function for a given array. t = clamp((x - edge0) / (edge1 - edge0), 0.0, 1.0); return t^3 * (t * (6.0 * t - 15.0) + 10.0);

Definition at line 56 of file filters.c.

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opencl_step_function()

void opencl_step_function	(	void *	x,
		real *	edge,
		real *	left,
		real *	right,
		int *	n
	)

Fortran wrapper for step function

Compute the step function for a given array. if (x < edge) return left; else return right;

Parameters

x	array to apply the step function
edge	threshold value
left	value to return if x < edge
right	value to return if x >= edge
n	size of the array

Definition at line 92 of file filters.c.

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