ivan@137: /**************************************************************************
ivan@137:  *
ivan@137:  * File name: omputils.h
ivan@137:  *
ivan@137:  * Ron Rubinstein
ivan@137:  * Computer Science Department
ivan@137:  * Technion, Haifa 32000 Israel
ivan@137:  * ronrubin@cs
ivan@137:  *
ivan@137:  * Last Updated: 18.8.2009
ivan@137:  *
ivan@137:  * Utility definitions and functions for the OMP library.
ivan@137:  *
ivan@137:  *************************************************************************/
ivan@137: 
ivan@137: 
ivan@137: #ifndef __OMP_UTILS_H__
ivan@137: #define __OMP_UTILS_H__
ivan@137: 
ivan@137: #include "mex.h"
ivan@137: 
ivan@137: 
ivan@137: /* constants for the representation mode of gamma */
ivan@137: 
ivan@137: extern const char FULL_GAMMA_STR[];      /* "full" */
ivan@137: extern const char SPARSE_GAMMA_STR[];    /* "sparse" */
ivan@137: 
ivan@137: 
ivan@137: #define FULL_GAMMA 1
ivan@137: #define SPARSE_GAMMA 2
ivan@137: #define INVALID_MODE 3
ivan@137: 
ivan@137: 
ivan@137: 
ivan@137: /**************************************************************************
ivan@137:  * Memory management for OMP2.
ivan@137:  *
ivan@137:  * GAMMA_INC_FACTOR:
ivan@137:  * The matrix GAMMA is allocated with sqrt(n)/2 coefficients per signal,
ivan@137:  * for a total of nzmax = L*sqrt(n)/2 nonzeros. Whenever GAMMA needs to be
ivan@137:  * increased, it is increased by a factor of GAMMA_INC_FACTOR.
ivan@137:  *
ivan@137:  * MAT_INC_FACTOR:
ivan@137:  * The matrices Lchol, Gsub and Dsub are allocated with sqrt(n)/2
ivan@137:  * columns each. If additional columns are needed, this number is 
ivan@137:  * increased by a factor of MAT_INC_FACTOR.
ivan@137:  **************************************************************************/
ivan@137: 
ivan@137: #define GAMMA_INC_FACTOR (1.4)
ivan@137: #define MAT_INC_FACTOR (1.6)
ivan@137: 
ivan@137: 
ivan@137: 
ivan@137: /**************************************************************************
ivan@137:  * Convert number of seconds to hour, minute and second representation.
ivan@137:  *
ivan@137:  * Parameters:
ivan@137:  *   sectot - total number of seconds
ivan@137:  *   hrs, mins, secs - output hours (whole) and minutes (whole) and seconds
ivan@137:  *
ivan@137:  **************************************************************************/
ivan@137: void secs2hms(double sectot, int *hrs, int *mins, double *secs);
ivan@137: 
ivan@137: 
ivan@137: 
ivan@137: /**************************************************************************
ivan@137:  * QuickSort - public-domain C implementation by Darel Rex Finley.
ivan@137:  *
ivan@137:  * Modified to sort both the array vals[] and the array data[] according 
ivan@137:  * to the values in the array vals[].
ivan@137:  *
ivan@137:  **************************************************************************/
ivan@137: void quicksort(mwIndex vals[], double data[], mwIndex n);
ivan@137: 
ivan@137: 
ivan@137: #endif
ivan@137: