1 files changed, 58 insertions, 0 deletions

diff --git a/Source/modules/asura-core/Graphics/MatrixStack.h b/Source/modules/asura-core/Graphics/MatrixStack.h
new file mode 100644
index 0000000..8dd56bf
--- /dev/null
+++ b/Source/modules/asura-core/Graphics/MatrixStack.h
@@ -0,0 +1,58 @@
+#ifndef _ASURA_MATRIX_STACK_H_
+#define _ASURA_MATRIX_STACK_H_
+
+#include <asura-base/Type.h>
+#include <asura-base/Math/Matrix44.h>
+#include <asura-base/Classes.h>
+
+namespace_begin(AsuraEngine)
+namespace_begin(Graphics)
+
+///
+/// ջ�ľ�����ȡ�
+///
+#define ASURA_MAX_MATRIX_STACK_DEPTH 32 // 2KB
+
+///
+/// ����ջ״̬�������ָ�֮ǰ��״̬��ջ�е�һ������stack[i]��ֵ��stack[0]*..*stack[i-1]
+/// ��ֵ��������һϵ��transform��
+/// 
+/// TODO: template<uint _capacity> MatrixStack
+///
+class MatrixStack
+{
+public:
+
+	MatrixStack();
+	~MatrixStack();
+
+	void LoadIdentity();
+	bool Push();
+	bool Pop();
+
+	AEMath::Matrix44& GetTop();
+	void GetTop(ASURA_OUT AEMath::Matrix44& mat44);
+
+	void LoadMatrix(const AEMath::Matrix44& mat44);
+	void MultMatrix(const AEMath::Matrix44& mat44);
+
+	void Rotate(float angle);
+	void Translate(float x, float y);
+	void Scale(float x, float y);
+
+	void Ortho(float l, float r, float b, float t, float n, float f);
+
+	uint GetTopIndex();
+	uint GetCapacity();
+
+private: 
+
+	AEMath::Matrix44 m_Stack[ASURA_MAX_MATRIX_STACK_DEPTH];
+	uint8            top;
+
+};
+
+namespace_end
+namespace_end
+
+#endif
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