idamnjanovic@60: /**************************************************************************
idamnjanovic@60:  *
idamnjanovic@60:  * File name: omputils.h
idamnjanovic@60:  *
idamnjanovic@60:  * Ron Rubinstein
idamnjanovic@60:  * Computer Science Department
idamnjanovic@60:  * Technion, Haifa 32000 Israel
idamnjanovic@60:  * ronrubin@cs
idamnjanovic@60:  *
idamnjanovic@60:  * Last Updated: 18.8.2009
idamnjanovic@60:  *
idamnjanovic@60:  * Utility definitions and functions for the OMP library.
idamnjanovic@60:  *
idamnjanovic@60:  *************************************************************************/
idamnjanovic@60: 
idamnjanovic@60: 
idamnjanovic@60: #ifndef __OMP_UTILS_H__
idamnjanovic@60: #define __OMP_UTILS_H__
idamnjanovic@60: 
idamnjanovic@60: #include "mex.h"
idamnjanovic@60: 
idamnjanovic@60: 
idamnjanovic@60: /* constants for the representation mode of gamma */
idamnjanovic@60: 
idamnjanovic@60: extern const char FULL_GAMMA_STR[];      /* "full" */
idamnjanovic@60: extern const char SPARSE_GAMMA_STR[];    /* "sparse" */
idamnjanovic@60: 
idamnjanovic@60: 
idamnjanovic@60: #define FULL_GAMMA 1
idamnjanovic@60: #define SPARSE_GAMMA 2
idamnjanovic@60: #define INVALID_MODE 3
idamnjanovic@60: 
idamnjanovic@60: 
idamnjanovic@60: 
idamnjanovic@60: /**************************************************************************
idamnjanovic@60:  * Memory management for OMP2.
idamnjanovic@60:  *
idamnjanovic@60:  * GAMMA_INC_FACTOR:
idamnjanovic@60:  * The matrix GAMMA is allocated with sqrt(n)/2 coefficients per signal,
idamnjanovic@60:  * for a total of nzmax = L*sqrt(n)/2 nonzeros. Whenever GAMMA needs to be
idamnjanovic@60:  * increased, it is increased by a factor of GAMMA_INC_FACTOR.
idamnjanovic@60:  *
idamnjanovic@60:  * MAT_INC_FACTOR:
idamnjanovic@60:  * The matrices Lchol, Gsub and Dsub are allocated with sqrt(n)/2
idamnjanovic@60:  * columns each. If additional columns are needed, this number is 
idamnjanovic@60:  * increased by a factor of MAT_INC_FACTOR.
idamnjanovic@60:  **************************************************************************/
idamnjanovic@60: 
idamnjanovic@60: #define GAMMA_INC_FACTOR (1.4)
idamnjanovic@60: #define MAT_INC_FACTOR (1.6)
idamnjanovic@60: 
idamnjanovic@60: 
idamnjanovic@60: 
idamnjanovic@60: /**************************************************************************
idamnjanovic@60:  * Convert number of seconds to hour, minute and second representation.
idamnjanovic@60:  *
idamnjanovic@60:  * Parameters:
idamnjanovic@60:  *   sectot - total number of seconds
idamnjanovic@60:  *   hrs, mins, secs - output hours (whole) and minutes (whole) and seconds
idamnjanovic@60:  *
idamnjanovic@60:  **************************************************************************/
idamnjanovic@60: void secs2hms(double sectot, int *hrs, int *mins, double *secs);
idamnjanovic@60: 
idamnjanovic@60: 
idamnjanovic@60: 
idamnjanovic@60: /**************************************************************************
idamnjanovic@60:  * QuickSort - public-domain C implementation by Darel Rex Finley.
idamnjanovic@60:  *
idamnjanovic@60:  * Modified to sort both the array vals[] and the array data[] according 
idamnjanovic@60:  * to the values in the array vals[].
idamnjanovic@60:  *
idamnjanovic@60:  **************************************************************************/
idamnjanovic@60: void quicksort(mwIndex vals[], double data[], mwIndex n);
idamnjanovic@60: 
idamnjanovic@60: 
idamnjanovic@60: #endif
idamnjanovic@60: