From dfee5107786a839396943e73dff26a16fe8837a5 Mon Sep 17 00:00:00 2001
From: Relintai <relintai@protonmail.com>
Date: Wed, 25 Oct 2023 00:53:41 +0200
Subject: [PATCH] Added a new helper method to MLPPMatrix.

---
 mlpp/lin_alg/mlpp_matrix.cpp | 24 ++++++++++++++++++++++++
 mlpp/lin_alg/mlpp_matrix.h   |  2 ++
 2 files changed, 26 insertions(+)

diff --git a/mlpp/lin_alg/mlpp_matrix.cpp b/mlpp/lin_alg/mlpp_matrix.cpp
index fcc4941..f7a09e4 100644
--- a/mlpp/lin_alg/mlpp_matrix.cpp
+++ b/mlpp/lin_alg/mlpp_matrix.cpp
@@ -558,6 +558,18 @@ void MLPPMatrix::set_from_arrays(const Array &p_from) {
 	}
 }
 
+void MLPPMatrix::set_from_ptr(const real_t *p_from, const int p_size_y, const int p_size_x) {
+	_data = NULL;
+
+	ERR_FAIL_COND(!p_from);
+
+	resize(Size2i(p_size_x, p_size_y));
+	int ds = data_size();
+	for (int i = 0; i < ds; ++i) {
+		_data[i] = p_from[i];
+	}
+}
+
 /*
 std::vector<std::vector<real_t>> MLPPMatrix::gramMatrix(std::vector<std::vector<real_t>> A) {
 	return matmult(transpose(A), A); // AtA
@@ -3005,6 +3017,18 @@ MLPPMatrix::MLPPMatrix(const Array &p_from) {
 	set_from_arrays(p_from);
 }
 
+MLPPMatrix::MLPPMatrix(const real_t *p_from, const int p_size_y, const int p_size_x) {
+	_data = NULL;
+
+	ERR_FAIL_COND(!p_from);
+
+	resize(Size2i(p_size_x, p_size_y));
+	int ds = data_size();
+	for (int i = 0; i < ds; ++i) {
+		_data[i] = p_from[i];
+	}
+}
+
 MLPPMatrix::~MLPPMatrix() {
 	if (_data) {
 		reset();
diff --git a/mlpp/lin_alg/mlpp_matrix.h b/mlpp/lin_alg/mlpp_matrix.h
index 0e257d0..3c87b24 100644
--- a/mlpp/lin_alg/mlpp_matrix.h
+++ b/mlpp/lin_alg/mlpp_matrix.h
@@ -136,6 +136,7 @@ public:
 	void set_from_mlpp_vectors_array(const Array &p_from);
 	void set_from_vectors(const Vector<Vector<real_t>> &p_from);
 	void set_from_arrays(const Array &p_from);
+	void set_from_ptr(const real_t *p_from, const int p_size_y, const int p_size_x);
 
 	//std::vector<std::vector<real_t>> gramMatrix(std::vector<std::vector<real_t>> A);
 	//bool linearIndependenceChecker(std::vector<std::vector<real_t>> A);
@@ -359,6 +360,7 @@ public:
 	MLPPMatrix(const MLPPMatrix &p_from);
 	MLPPMatrix(const Vector<Vector<real_t>> &p_from);
 	MLPPMatrix(const Array &p_from);
+	MLPPMatrix(const real_t *p_from, const int p_size_y, const int p_size_x);
 
 	~MLPPMatrix();