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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef QDENGINE_QDCORE_QD_ENGINE_D3DUTILS_H
#define QDENGINE_QDCORE_QD_ENGINE_D3DUTILS_H
#include "qdengine/xmath.h"
namespace QDEngine {
typedef float VALUE3D;
typedef struct _MATRIX3D {
VALUE3D m[4][4];
_MATRIX3D() { }
_MATRIX3D(VALUE3D _m00, VALUE3D _m01, VALUE3D _m02, VALUE3D _m03,
VALUE3D _m10, VALUE3D _m11, VALUE3D _m12, VALUE3D _m13,
VALUE3D _m20, VALUE3D _m21, VALUE3D _m22, VALUE3D _m23,
VALUE3D _m30, VALUE3D _m31, VALUE3D _m32, VALUE3D _m33
) {
m[0][0] = _m00;
m[0][1] = _m01;
m[0][2] = _m02;
m[0][3] = _m03;
m[1][0] = _m10;
m[1][1] = _m11;
m[1][2] = _m12;
m[1][3] = _m13;
m[2][0] = _m20;
m[2][1] = _m21;
m[2][2] = _m22;
m[2][3] = _m23;
m[3][0] = _m30;
m[3][1] = _m31;
m[3][2] = _m32;
m[3][3] = _m33;
}
VALUE3D &operator()(int iRow, int iColumn) {
return m[iRow][iColumn];
}
const VALUE3D &operator()(int iRow, int iColumn) const {
return m[iRow][iColumn];
}
} MATRIX3D, *LPDMATRIX3D;
/*
**-----------------------------------------------------------------------------
** Function Prototypes
**-----------------------------------------------------------------------------
*/
// generic simple matrix routines
MATRIX3D ZeroMatrix();
MATRIX3D IdentityMatrix();
MATRIX3D ProjectionMatrix(const float near_plane, const float far_plane, const float fov);
MATRIX3D ViewMatrixByDir(const Vect3f &from,
const Vect3f &view_dir,
const Vect3f &world_up,
const Vect3f &cam_up);
MATRIX3D ViewMatrix(const Vect3f &from, const Vect3f &at,
const Vect3f &world_up,
const Vect3f &cam_up);
MATRIX3D RotateXMatrix(const float rads);
MATRIX3D RotateYMatrix(const float rads);
MATRIX3D RotateZMatrix(const float rads);
MATRIX3D TranslateMatrix(const float dx, const float dy, const float dz);
MATRIX3D TranslateMatrix(const Vect3f &v);
MATRIX3D ScaleMatrix(const float size);
MATRIX3D ScaleMatrix(const float a, const float b, const float c);
MATRIX3D ScaleMatrix(const Vect3f &v);
MATRIX3D MatrixMult(const MATRIX3D &a, const MATRIX3D &b);
MATRIX3D MatrixInverse(const MATRIX3D &m);
MATRIX3D MatrixTranspose(const MATRIX3D &m);
Vect3f TransformVector(const Vect3f &v, const MATRIX3D &m);
Vect3f TransformNormal(const Vect3f &v, const MATRIX3D &m);
/*
**-----------------------------------------------------------------------------
** End of File
**-----------------------------------------------------------------------------
*/
} // namespace QDEngine
#endif // QDENGINE_QDCORE_QD_ENGINE_D3DUTILS_H
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