/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
 * Copyright (C) 2004-2013  HUBzero Foundation, LLC
 *
 */
#ifndef NV_READER_COMMON_H
#define NV_READER_COMMON_H

namespace nv {

extern float *
merge(float *scalar, float *gradient, int size);

extern void
normalizeScalar(float *data, int count, int stride, double min, double max);

extern void
normalizeVector(float *data, int count, double min, double max);

extern float *
computeGradient(float *data,
                int nx, int ny, int nz,
                float dx, float dy, float dz,
                float min, float max);

extern void
computeSimpleGradient(float *data,
                      int nx, int ny, int nz,
                      float dx = 1.0f, float dy = 1.0f, float dz = 1.0f);

}

#endif