uint8 u8mulv(uint8* in1, uint8* in2, int size)
{
uint8 out = 0;
int i = 0;
for (i = 0 ; i < size ; ++i)
{
out += u8muls(in1[i], in2[i]);
}
return out;
}
void u8columnproda(uint8 *in, int lines, int columns, uint8 * out) {
int i = 0;
/*
** First assign first row, just in case
** out contains non-zero's elements.
*/
for (i = 0 ; i < lines; ++i)
{
out[i] = (uint8)in[i];
}
/*
** Then accumulate in each row.
*/
for (i = lines ; i < lines * columns ; ++i)
{
out[i % lines] = (uint8)u8muls(out[i % lines] , in[i]);
}
}
void u8rowproda(uint8 *in, int lines, int columns, uint8 * out) {
int i = 0;
/*
** First assign first row, just in case
** out contains non-zero's elements.
*/
for (i = 0 ; i < columns; ++i)
{
out[i] = (uint8)in[i * lines];
}
/*
** Then accumulate in each column.
*/
for (i = 1 ; i <= (lines - 1) * columns ; ++i)
{
out[(i - 1) % columns] = (uint8)u8muls( out[(i - 1) % columns] ,
in[((i - 1) % columns) * lines + 1 + (i - 1) / columns]);
}
}