From 15740faf9fe9fe4be08965098bbf2947e096aeeb Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Wed, 14 Aug 2019 22:50:43 +0800
Subject: +Unity Runtime code

---
 Runtime/Graphics/MatrixStack.h | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Runtime/Graphics/MatrixStack.h

(limited to 'Runtime/Graphics/MatrixStack.h')

diff --git a/Runtime/Graphics/MatrixStack.h b/Runtime/Graphics/MatrixStack.h
new file mode 100644
index 0000000..fe11a18
--- /dev/null
+++ b/Runtime/Graphics/MatrixStack.h
@@ -0,0 +1,32 @@
+#pragma once
+
+#include "Runtime/Math/Matrix4x4.h"
+
+
+class MatrixStack
+{
+public:
+	enum { kStackDepth = 16 };
+
+public:
+	MatrixStack() { Reset(); }
+
+	void	Reset();
+
+	void	SetMatrix( const float matrix[16] );
+	void	SetCurrentIdentity();
+	void	MultMatrix( const float matrix[16] );
+	const Matrix4x4f& GetMatrix() const;
+
+	void	Push(const float* matrix);
+	void	Push();
+	void	Pop();
+
+	int		GetCurrentDepth() const { return m_Depth; }
+
+private:
+	Matrix4x4f& GetMatrix4x4f (int index);
+
+	Matrix4x4f	m_Matrices[kStackDepth];
+	int		m_Depth;
+};
-- 
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