/*
    QGLView
    Copyright (C) 2020  Ivan Pelipenko peri4ko@yandex.ru

    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 LOADER_3DS_H
#define LOADER_3DS_H

#include "gltexture_manager.h"
#include "globject.h"
#include <QFileInfo>
#include <QDateTime>

#define LOADER_3DS_CHUNK_MAIN                    0x4D4D // [-] сцена
#define  LOADER_3DS_CHUNK_COLOR_F                0x0010 // [+] цвет во float
#define  LOADER_3DS_CHUNK_COLOR_B                0x0011 // [+] цвет в byte
#define   LOADER_3DS_CHUNK_OBJECTS               0x3D3D // [-] всяческие объекты
#define     LOADER_3DS_CHUNK_OBJECT              0x4000 // [+] объект
#define       LOADER_3DS_CHUNK_MESH              0x4100 // [-] mesh-объект
#define         LOADER_3DS_CHUNK_VERTLIST        0x4110 // [+] список вершин
#define         LOADER_3DS_CHUNK_FACELIST        0x4120 // [+] список граней
#define         LOADER_3DS_CHUNK_FACEMAT         0x4130 // [+] материалы граней
#define         LOADER_3DS_CHUNK_MAPLIST         0x4140 // [+] текстурные координаты
#define         LOADER_3DS_CHUNK_SMOOTH          0x4150 // [+] группы сглаживания
#define         LOADER_3DS_CHUNK_TRMATRIX        0x4160 // [+] матрица перевода
#define       LOADER_3DS_CHUNK_LIGHT             0x4600 // [+] источник света
#define         LOADER_3DS_CHUNK_SPOTLIGHT       0x4610 // [+]
#define         LOADER_3DS_CHUNK_LIGHT_OFF       0x4620 // [+]
#define         LOADER_3DS_CHUNK_ATTENUATION_ON  0x4625 // [+]
#define         LOADER_3DS_CHUNK_RANGE_START     0x4659 // [+]
#define         LOADER_3DS_CHUNK_RANGE_END       0x465A // [+]
#define         LOADER_3DS_CHUNK_MULTIPLIER      0x465B // [+]
#define       LOADER_3DS_CHUNK_CAMERA            0x4700 // [+] объект-камера
#define   LOADER_3DS_CHUNK_MATERIAL              0xAFFF // [-] материал
#define     LOADER_3DS_CHUNK_MATERIAL_NAME       0xA000
#define       LOADER_3DS_CHUNK_AMBIENT_COLOR     0xA010
#define       LOADER_3DS_CHUNK_DIFFUSE_COLOR     0xA020
#define       LOADER_3DS_CHUNK_SPECULAR_COLOR    0xA030
#define       LOADER_3DS_CHUNK_TEXTURE_MAP       0xA200
#define       LOADER_3DS_CHUNK_BUMP_MAP          0xA230
#define       LOADER_3DS_CHUNK_REFLECTION_MAP    0xA220
#define         LOADER_3DS_CHUNK_MAP_FILENAME    0xA300
#define         LOADER_3DS_CHUNK_MAP_PARAMETERS  0xA351

namespace Loader3DS {
#pragma pack(push, 1)
	struct Chunk {
		ushort id;
		uint size;
	};
	struct Face {
		ushort v0;
		ushort v1;
		ushort v2;
		ushort flags;
	};
#pragma pack(pop)
	void init3DSMesh(GLObjectBase * o, const QVector<uint> & smooth);
	Material materialByName(const QVector<Material> & materials, const QString & name);
}

GLObjectBase * loadFrom3DSFile(const QString & filepath, float scale = 1.0);

#endif // LOADER_3DS_H