/*******************************************************************************/
/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas             */
/*                                                                             */
#include "types.h"
#include "matrix.h"
#include "video.h"

typedef struct triface {
    u16 V1;	
    u16 V2;
    u16 V3;
} triface __attribute__ ((packed));

typedef struct model3d {
    u8 name[12];
    matrix44 view;
    vector4 *vertexlist;
    u16 vertexnb;
    triface *facelist;
    u16 facenb;    
} model3d __attribute__ ((packed));

typedef struct vertex3d {
  union {
    struct {
        float x;	
	    float y;
	    float z;
   };
    float v[3];
  };
} vertex3d __attribute__ ((packed));

typedef enum type3D
{
	TYPE3D_POINTS,
	TYPE3D_LINES,
	TYPE3D_FACES,
	TYPE3D_FLAT,
	TYPE3D_TEXTURE,
} type3D  __attribute__ ((packed));


void proj(vector4 list[], vertex2d plane[], vector4 origin[], u16 number, float factor);
void cube(model3d *model, vector4 *origin, u16 size);
int load3ds(u8 *pointer,u32 size, model3d *model);
void show3dmodel(model3d *model, matrix44 *transformation, vector4 origin[], float factor, type3D type);

/*******************************************************************************/
/* Fichier 3DS */

typedef enum dsState
{
	DS_READ_CHUNK_ID,
	DS_READ_CHUNK_LENGTH,
	DS_READ_OBJECT_NAME,
	DS_SKIP_CHUNK,
	DS_READ_POINT_COUNT,
	DS_READ_POINTS,
	DS_READ_FACE_COUNT,
	DS_READ_FACES,
    DS_READ_MATRIX,
	DS_READ_DONE
} dsState  __attribute__ ((packed));


#define MAIN3DS       0x4D4D

//>------ Main Chunks

#define EDIT3DS       0x3D3D  // this is the start of the editor config
#define KEYF3DS       0xB000  // this is the start of the keyframer config

//>------ sub defines of EDIT3DS

#define EDIT_MATERIAL 0xAFFF
#define EDIT_CONFIG1  0x0100
#define EDIT_CONFIG2  0x3E3D
#define EDIT_VIEW_P1  0x7012
#define EDIT_VIEW_P2  0x7011
#define EDIT_VIEW_P3  0x7020
#define EDIT_VIEW1    0x7001
#define EDIT_BACKGR   0x1200
#define EDIT_AMBIENT  0x2100
#define EDIT_OBJECT   0x4000

#define EDIT_UNKNW01  0x1100
#define EDIT_UNKNW02  0x1201
#define EDIT_UNKNW03  0x1300
#define EDIT_UNKNW04  0x1400
#define EDIT_UNKNW05  0x1420
#define EDIT_UNKNW06  0x1450
#define EDIT_UNKNW07  0x1500
#define EDIT_UNKNW08  0x2200
#define EDIT_UNKNW09  0x2201
#define EDIT_UNKNW10  0x2210
#define EDIT_UNKNW11  0x2300
#define EDIT_UNKNW12  0x2302 // new chunk type
#define EDIT_UNKNW13  0x3000
#define EDIT_UNKNW14  0xAFFF

//>------ sub defines of EDIT_MATERIAL
#define MAT_NAME01    0xA000  //> includes name (see mli doc for materials)

//>------ sub defines of EDIT_OBJECT

#define OBJ_TRIMESH   0x4100
#define OBJ_LIGHT     0x4600
#define OBJ_CAMERA    0x4700

#define OBJ_UNKNWN01  0x4010
#define OBJ_UNKNWN02  0x4012 //>>---- Could be shadow

//>------ sub defines of OBJ_CAMERA
#define CAM_UNKNWN01  0x4710 // new chunk type
#define CAM_UNKNWN02  0x4720 // new chunk type

//>------ sub defines of OBJ_LIGHT
#define LIT_OFF       0x4620
#define LIT_SPOT      0x4610
#define LIT_UNKNWN01  0x465A

//>------ sub defines of OBJ_TRIMESH
#define TRI_VERTEXL   0x4110
#define TRI_FACEL2    0x4111 // unknown yet
#define TRI_FACEL1    0x4120
#define TRI_SMOOTH    0x4150
#define TRI_LOCAL     0x4160
#define TRI_VISIBLE   0x4165

//>>------ sub defs of KEYF3DS

#define KEYF_UNKNWN01 0xB009
#define KEYF_UNKNWN02 0xB00A
#define KEYF_FRAMES   0xB008
#define KEYF_OBJDES   0xB002

#define KEYF_OBJHIERARCH  0xB010
#define KEYF_OBJDUMMYNAME 0xB011
#define KEYF_OBJUNKNWN01  0xB013
#define KEYF_OBJUNKNWN02  0xB014
#define KEYF_OBJUNKNWN03  0xB015  
#define KEYF_OBJPIVOT     0xB020  
#define KEYF_OBJUNKNWN04  0xB021  
#define KEYF_OBJUNKNWN05  0xB022  

//>>------  these define the different color chunk types
#define COL_RGB  0x0010
#define COL_TRU  0x0011
#define COL_UNK  0x0013 // unknown

//>>------ defines for viewport chunks

#define TOP           0x0001
#define BOTTOM        0x0002
#define LEFT          0x0003
#define RIGHT         0x0004
#define FRONT         0x0005
#define BACK          0x0006
#define USER          0x0007
#define CAMERA        0x0008 // 0xFFFF is the code read from file
#define LIGHT         0x0009
#define DISABLED      0x0010
#define BOGUS         0x0011