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#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״ָ̬֮ǰ״̬ջеһstack[i]ֵstack[0]*..*stack[i-1]ֵһϵtransform
//
// TODO: template<uint _capacity> MatrixStack
class MatrixStack
{
public:
MatrixStack();
~MatrixStack();
void LoadIdentity();
bool Push();
bool Pop();
Matrix44& GetTop();
void GetTop(ASURA_OUT Matrix44& mat44);
void LoadMatrix(const Matrix44& mat44);
void MultMatrix(const 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:
Matrix44 m_Stack[32]; // 2kB
uint8 m_Top;
};
namespace_end
namespace_end
#endif
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