ES-DE/es-core/src/math/Transform4x4f.h

//  SPDX-License-Identifier: MIT
//
//  EmulationStation Desktop Edition
//  Transform4x4f.h
//
//  4x4 matrix functions.
//

#ifndef ES_CORE_MATH_TRANSFORM4X4F_H
#define ES_CORE_MATH_TRANSFORM4X4F_H

#include "math/Vector4f.h"
#include "math/Vector3f.h"

class Transform4x4f
{
public:
    Transform4x4f() {}
    Transform4x4f(
            const Vector4f& _r0,
            const Vector4f& _r1,
            const Vector4f& _r2,
            const Vector4f& _r3)
            : mR0(_r0),
            mR1(_r1),
            mR2(_r2),
            mR3(_r3) {}

    const Transform4x4f operator*(const Transform4x4f& _other) const;
    const Vector3f operator*(const Vector3f& _other) const;
    Transform4x4f& operator*=(const Transform4x4f& _other)
            { *this = *this * _other; return *this; }

    inline Vector4f& r0() { return mR0; }
    inline Vector4f& r1() { return mR1; }
    inline Vector4f& r2() { return mR2; }
    inline Vector4f& r3() { return mR3; }
    inline const Vector4f& r0() const { return mR0; }
    inline const Vector4f& r1() const { return mR1; }
    inline const Vector4f& r2() const { return mR2; }
    inline const Vector4f& r3() const { return mR3; }

    Transform4x4f& orthoProjection(
            float _left,
            float _right,
            float _bottom,
            float _top,
            float _near,
            float _far);
    Transform4x4f& invert(const Transform4x4f& _other);
    Transform4x4f& scale(const Vector3f& _scale);
    Transform4x4f& rotate(const float _angle, const Vector3f& _axis);
    Transform4x4f& rotateX(const float _angle);
    Transform4x4f& rotateY(const float _angle);
    Transform4x4f& rotateZ(const float _angle);
    Transform4x4f& translate(const Vector3f& _translation);
    Transform4x4f& round();

    inline Vector3f& translation() { return mR3.v3(); }
    inline const Vector3f& translation() const { return mR3.v3(); }

    static const Transform4x4f Identity()
            { return { { 1, 0, 0, 0 }, { 0, 1, 0, 0 }, { 0, 0, 1, 0 }, { 0, 0, 0, 1 } }; }

protected:
    Vector4f mR0;
    Vector4f mR1;
    Vector4f mR2;
    Vector4f mR3;
};

#endif // ES_CORE_MATH_TRANSFORM4X4F_H