OpenBLAS/interface/zimatcopy.c

/***************************************************************************
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/***********************************************************
 * 2014-06-10 Saar
 * 2015-09-07 grisuthedragon 
***********************************************************/

#include <stdio.h>
#include <stdlib.h>
#include "common.h"
#ifdef FUNCTION_PROFILE
#include "functable.h"
#endif

#if defined(DOUBLE)
#define ERROR_NAME "ZIMATCOPY"
#else
#define ERROR_NAME "CIMATCOPY"
#endif

#define BlasRowMajor     0
#define BlasColMajor     1
#define BlasNoTrans      0
#define BlasTrans        1
#define BlasTransConj    2
#define BlasConj         3

#define NEW_IMATCOPY 

#ifndef CBLAS
void NAME( char* ORDER, char* TRANS, blasint *rows, blasint *cols, FLOAT *alpha, FLOAT *a, blasint *lda, blasint *ldb)
{

	char Order, Trans;
	int order=-1,trans=-1;
	blasint info = -1;
	FLOAT *b;
	size_t msize;

	Order = *ORDER;
	Trans = *TRANS;

	TOUPPER(Order);
	TOUPPER(Trans);

	if ( Order == 'C' ) order = BlasColMajor;
	if ( Order == 'R' ) order = BlasRowMajor;
	if ( Trans == 'N' ) trans = BlasNoTrans;
	if ( Trans == 'T' ) trans = BlasTrans;
	if ( Trans == 'C' ) trans = BlasTransConj;
	if ( Trans == 'R' ) trans = BlasConj;

#else 
void CNAME( enum CBLAS_ORDER CORDER, enum CBLAS_TRANSPOSE CTRANS, blasint crows, blasint ccols, FLOAT *alpha, FLOAT *a, blasint clda, blasint cldb)
{

	blasint *rows, *cols, *lda, *ldb; 
	int order=-1,trans=-1;
	blasint info = -1;
	FLOAT *b;
	size_t msize;

	if ( CORDER == CblasColMajor ) order = BlasColMajor; 
	if ( CORDER == CblasRowMajor ) order = BlasRowMajor; 

	if ( CTRANS == CblasNoTrans) trans = BlasNoTrans; 
	if ( CTRANS == CblasConjNoTrans ) trans = BlasConj; 
	if ( CTRANS == CblasTrans) trans = BlasTrans; 
	if ( CTRANS == CblasConjTrans) trans = BlasTransConj; 

	rows = &crows; 
	cols = &ccols; 
	lda  = &clda; 
	ldb  = &cldb; 
#endif

	if ( order == BlasColMajor)
	{
        	if ( trans == BlasNoTrans      &&  *ldb < MAX(1,*rows) ) info = 9;
        	if ( trans == BlasConj         &&  *ldb < MAX(1,*rows) ) info = 9;
        	if ( trans == BlasTrans        &&  *ldb < MAX(1,*cols) ) info = 9;
        	if ( trans == BlasTransConj    &&  *ldb < MAX(1,*cols) ) info = 9;
	}
	if ( order == BlasRowMajor)
	{
        	if ( trans == BlasNoTrans    &&  *ldb < MAX(1,*cols) ) info = 9;
        	if ( trans == BlasConj       &&  *ldb < MAX(1,*cols) ) info = 9;
        	if ( trans == BlasTrans      &&  *ldb < MAX(1,*rows) ) info = 9;
        	if ( trans == BlasTransConj  &&  *ldb < MAX(1,*rows) ) info = 9;
	}

	if ( order == BlasColMajor &&  *lda < MAX(1,*rows) ) info = 7;
	if ( order == BlasRowMajor &&  *lda < MAX(1,*cols) ) info = 7;
	if ( *cols < 0 ) info = 4;
	if ( *rows < 0 ) info = 3;
	if ( trans < 0 ) info = 2;
	if ( order < 0 ) info = 1;

	if (info >= 0) {
    		BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
    		return;
  	}

	if ((*rows == 0) || (*cols == 0)) return;

#ifdef NEW_IMATCOPY
    if (*lda == *ldb ) {
        if ( order == BlasColMajor )
        {

            if ( trans == BlasNoTrans )
            {
                IMATCOPY_K_CN(*rows, *cols, alpha[0], alpha[1], a, *lda );
                return;
            }
            if ( trans == BlasConj )
            {
                IMATCOPY_K_CNC(*rows, *cols, alpha[0], alpha[1], a, *lda );
                return;
            }
            if ( trans == BlasTrans && *rows == *cols )
            {
                IMATCOPY_K_CT(*rows, *cols, alpha[0], alpha[1], a, *lda );
                return;
            }
            if ( trans == BlasTransConj && *rows == *cols )
            {
                IMATCOPY_K_CTC(*rows, *cols, alpha[0], alpha[1], a, *lda );
                return;
            }

        }
        else
        {

            if ( trans == BlasNoTrans )
            {
                IMATCOPY_K_RN(*rows, *cols, alpha[0], alpha[1], a, *lda );
                return;
            }
            if ( trans == BlasConj )
            {
                IMATCOPY_K_RNC(*rows, *cols, alpha[0], alpha[1], a, *lda );
                return;
            }
            if ( trans == BlasTrans && *rows == *cols )
            {
                IMATCOPY_K_RT(*rows, *cols, alpha[0], alpha[1], a, *lda );
                return;
            }
            if ( trans == BlasTransConj && *rows == *cols )
            {
                IMATCOPY_K_RTC(*rows, *cols, alpha[0], alpha[1], a, *lda );
                return;
            }

        }
    }
#endif

	msize = (size_t)(*rows) * (*cols) * sizeof(FLOAT) * 2;

	b = malloc(msize);
	if ( b == NULL )
	{
		printf("Memory alloc failed in zimatcopy\n");
		exit(1);
	}

	if ( order == BlasColMajor )
	{

		if ( trans == BlasNoTrans )
		{
	  		OMATCOPY_K_CN(*rows, *cols, alpha[0], alpha[1], a, *lda, b, *rows );
	  		OMATCOPY_K_CN(*rows, *cols, (FLOAT) 1.0, (FLOAT) 0.0 , b, *rows, a, *ldb );
		}
		else if ( trans == BlasConj )
		{
			OMATCOPY_K_CNC(*rows, *cols, alpha[0], alpha[1], a, *lda, b, *rows );
	  		OMATCOPY_K_CN(*rows, *cols, (FLOAT) 1.0, (FLOAT) 0.0 , b, *rows, a, *ldb );
		}
		else if ( trans == BlasTrans )
		{
			OMATCOPY_K_CT(*rows, *cols, alpha[0], alpha[1], a, *lda, b, *cols );
	  		OMATCOPY_K_CN(*cols, *rows, (FLOAT) 1.0, (FLOAT) 0.0 , b, *cols, a, *ldb );
		}
		else if ( trans == BlasTransConj )
		{
			OMATCOPY_K_CTC(*rows, *cols, alpha[0], alpha[1], a, *lda, b, *cols );
	  		OMATCOPY_K_CN(*cols, *rows, (FLOAT) 1.0, (FLOAT) 0.0 , b, *cols, a, *ldb );
		}

	}
	else
	{

		if ( trans == BlasNoTrans )
		{
			OMATCOPY_K_RN(*rows, *cols, alpha[0], alpha[1], a, *lda, b, *cols );
	  		OMATCOPY_K_RN(*rows, *cols, (FLOAT) 1.0, (FLOAT) 0.0 , b, *cols, a, *ldb );
		}
		else if ( trans == BlasConj )
		{
			OMATCOPY_K_RNC(*rows, *cols, alpha[0], alpha[1], a, *lda, b, *cols );
	  		OMATCOPY_K_RN(*rows, *cols, (FLOAT) 1.0, (FLOAT) 0.0 , b, *cols, a, *ldb );
		}
		else if ( trans == BlasTrans )
		{
			OMATCOPY_K_RT(*rows, *cols, alpha[0], alpha[1], a, *lda, b, *rows );
	  		OMATCOPY_K_RN(*cols, *rows, (FLOAT) 1.0, (FLOAT) 0.0 , b, *rows, a, *ldb );
		}
		else if ( trans == BlasTransConj )
		{
			OMATCOPY_K_RTC(*rows, *cols, alpha[0], alpha[1], a, *lda, b, *rows );
	  		OMATCOPY_K_RN(*cols, *rows, (FLOAT) 1.0, (FLOAT) 0.0 , b, *rows, a, *ldb );
		}

	}

	free(b);
	return;

}