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LibGL+LibSoftGPU+LibGfx: Reimplement normal transformation

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We now support generating top-left submatrices from a `Gfx::Matrix`
and we move the normal transformation calculation into
`SoftGPU::Device`. No functional changes.
This commit is contained in:
Jelle Raaijmakers 2022-03-23 14:07:27 +01:00 • committed by Brian Gianforcaro
parent 74de8e4224
commit 8a3242cb83
4 changed files with 22 additions and 14 deletions
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14
Userland/Libraries/LibGfx/Matrix.h
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@ -13,6 +13,9 @@ namespace Gfx {
template<size_t N, typename T>
class Matrix {
template<size_t U, typename V>
friend class Matrix;
public:
static constexpr size_t Size = N;
@ -173,6 +176,17 @@ public:
return result;
}
template<size_t U>
[[nodiscard]] constexpr Matrix<U, T> submatrix_from_topleft() const requires(U > 0 && U < N)
{
Matrix<U, T> result;
for (size_t i = 0; i < U; ++i) {
for (size_t j = 0; j < U; ++j)
result.m_elements[i][j] = m_elements[i][j];
}
return result;
}
private:
T m_elements[N][N];
};