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/* -*- mode: C -*- */
/* Some "inline" functions for generic scalar types */
#ifdef TRANSPOSE_2D_ARRAY
static SLang_Array_Type *TRANSPOSE_2D_ARRAY (SLang_Array_Type *at, SLang_Array_Type *bt)
{
GENERIC_TYPE *a_data, *b_data;
int nr, nc, i;
nr = at->dims[0];
nc = at->dims[1];
a_data = (GENERIC_TYPE *) at->data;
b_data = (GENERIC_TYPE *) bt->data;
for (i = 0; i < nr; i++)
{
GENERIC_TYPE *offset = b_data + i;
int j;
for (j = 0; j < nc; j++)
{
*offset = *a_data++;
offset += nr;
}
}
return bt;
}
#undef TRANSPOSE_2D_ARRAY
#endif
#ifdef INNERPROD_FUNCTION
static void INNERPROD_FUNCTION
(SLang_Array_Type *at, SLang_Array_Type *bt, SLang_Array_Type *ct,
unsigned int a_loops, unsigned int a_stride,
unsigned int b_loops, unsigned int b_inc,
unsigned int inner_loops)
{
GENERIC_TYPE_A *a;
GENERIC_TYPE_B *b;
GENERIC_TYPE_C *c;
c = (GENERIC_TYPE_C *) ct->data;
b = (GENERIC_TYPE_B *) bt->data;
a = (GENERIC_TYPE_A *) at->data;
while (a_loops--)
{
GENERIC_TYPE_B *bb;
unsigned int j;
bb = b;
for (j = 0; j < inner_loops; j++)
{
double x = (double) a[j];
if (x != 0.0)
{
unsigned int k;
for (k = 0; k < b_loops; k++)
c[k] += x * bb[k];
}
bb += b_inc;
}
c += b_loops;
a += a_stride;
}
}
#undef INNERPROD_FUNCTION
#undef GENERIC_TYPE_A
#undef GENERIC_TYPE_B
#undef GENERIC_TYPE_C
#endif
#ifdef INNERPROD_COMPLEX_A
static void INNERPROD_COMPLEX_A
(SLang_Array_Type *at, SLang_Array_Type *bt, SLang_Array_Type *ct,
unsigned int a_loops, unsigned int a_stride,
unsigned int b_loops, unsigned int b_inc,
unsigned int inner_loops)
{
double *a;
GENERIC_TYPE *b;
double *c;
c = (double *) ct->data;
b = (GENERIC_TYPE *) bt->data;
a = (double *) at->data;
a_stride *= 2;
while (a_loops--)
{
GENERIC_TYPE *bb;
unsigned int bb_loops;
bb = b;
bb_loops = b_loops;
while (bb_loops--)
{
double real_sum;
double imag_sum;
unsigned int iloops;
double *aa;
GENERIC_TYPE *bbb;
aa = a;
bbb = bb;
iloops = inner_loops;
real_sum = 0.0;
imag_sum = 0.0;
while (iloops--)
{
real_sum += aa[0] * (double)bbb[0];
imag_sum += aa[1] * (double)bbb[0];
aa += 2;
bbb += b_inc;
}
*c++ = real_sum;
*c++ = imag_sum;
bb++;
}
a += a_stride;
}
}
static void INNERPROD_A_COMPLEX
(SLang_Array_Type *at, SLang_Array_Type *bt, SLang_Array_Type *ct,
unsigned int a_loops, unsigned int a_stride,
unsigned int b_loops, unsigned int b_inc,
unsigned int inner_loops)
{
GENERIC_TYPE *a;
double *b;
double *c;
c = (double *) ct->data;
b = (double *) bt->data;
a = (GENERIC_TYPE *) at->data;
b_inc *= 2;
while (a_loops--)
{
double *bb;
unsigned int bb_loops;
bb = b;
bb_loops = b_loops;
while (bb_loops--)
{
double real_sum;
double imag_sum;
unsigned int iloops;
GENERIC_TYPE *aa;
double *bbb;
aa = a;
bbb = bb;
iloops = inner_loops;
real_sum = 0.0;
imag_sum = 0.0;
while (iloops--)
{
real_sum += (double)aa[0] * bbb[0];
imag_sum += (double)aa[0] * bbb[1];
aa += 1;
bbb += b_inc;
}
*c++ = real_sum;
*c++ = imag_sum;
bb += 2;
}
a += a_stride;
}
}
#undef INNERPROD_A_COMPLEX
#undef INNERPROD_COMPLEX_A
#endif /* INNERPROD_COMPLEX_A */
#ifdef INNERPROD_COMPLEX_COMPLEX
static void INNERPROD_COMPLEX_COMPLEX
(SLang_Array_Type *at, SLang_Array_Type *bt, SLang_Array_Type *ct,
unsigned int a_loops, unsigned int a_stride,
unsigned int b_loops, unsigned int b_inc,
unsigned int inner_loops)
{
double *a;
double *b;
double *c;
c = (double *) ct->data;
b = (double *) bt->data;
a = (double *) at->data;
a_stride *= 2;
b_inc *= 2;
while (a_loops--)
{
double *bb;
unsigned int bb_loops;
bb = b;
bb_loops = b_loops;
while (bb_loops--)
{
double real_sum;
double imag_sum;
unsigned int iloops;
double *aa;
double *bbb;
aa = a;
bbb = bb;
iloops = inner_loops;
real_sum = 0.0;
imag_sum = 0.0;
while (iloops--)
{
real_sum += aa[0]*bbb[0] - aa[1]*bbb[1];
imag_sum += aa[0]*bbb[1] + aa[1]*bbb[0];
aa += 2;
bbb += b_inc;
}
*c++ = real_sum;
*c++ = imag_sum;
bb += 2;
}
a += a_stride;
}
}
#undef INNERPROD_COMPLEX_COMPLEX
#endif
#ifdef GENERIC_TYPE
# undef GENERIC_TYPE
#endif
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