30 lines
728 B
C++
30 lines
728 B
C++
#pragma once
|
|
|
|
namespace nall {
|
|
|
|
namespace Matrix {
|
|
|
|
template<typename T> inline auto Multiply(T* output, const T* xdata, uint xrows, uint xcols, const T* ydata, uint yrows, uint ycols) -> void {
|
|
if(xcols != yrows) return;
|
|
|
|
for(uint y : range(xrows)) {
|
|
for(uint x : range(ycols)) {
|
|
T sum = 0;
|
|
for(uint z : range(xcols)) {
|
|
sum += xdata[y * xcols + z] * ydata[z * ycols + x];
|
|
}
|
|
*output++ = sum;
|
|
}
|
|
}
|
|
}
|
|
|
|
template<typename T> inline auto Multiply(const T* xdata, uint xrows, uint xcols, const T* ydata, uint yrows, uint ycols) -> vector<T> {
|
|
vector<T> output;
|
|
output.resize(xrows * ycols);
|
|
Multiply(output.data(), xdata, xrows, xcols, ydata, yrows, ycols);
|
|
return output;
|
|
}
|
|
|
|
}
|
|
|
|
}
|