/*
   Copyright (C) 1999-2006 Id Software, Inc. and contributors.
   For a list of contributors, see the accompanying CONTRIBUTORS file.

   This file is part of GtkRadiant.

   GtkRadiant 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 2 of the License, or
   (at your option) any later version.

   GtkRadiant 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 GtkRadiant; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#if !defined( INCLUDED_MDLFORMAT_H )
#define INCLUDED_MDLFORMAT_H

typedef unsigned char byte;

const unsigned char MDL_IDENT[4] = { 'I', 'D', 'P', 'O', };

#define MDL_VERSION 6

#define MDL_ONSEAM              0x0020

typedef enum { MDL_FRAME_SINGLE = 0, MDL_FRAME_GROUP } aliasframetype_t;

typedef enum { MDL_SKIN_SINGLE = 0, MDL_SKIN_GROUP } aliasskintype_t;

typedef float float3[3];

typedef struct {
	byte ident[4];
	int version;
	float3 scale;
	float3 scale_origin;
	float boundingradius;
	float3 eyeposition;
	int numskins;
	int skinwidth;
	int skinheight;
	int numverts;
	int numtris;
	int numframes;
	int synctype;
	int flags;
	float size;
} mdlHeader_t;

// TODO: could be shorts

typedef struct {
	int onseam;
	int s;
	int t;
} mdlSt_t;

typedef struct dtriangle_s {
	int facesfront;
	int vertindex[3];
} mdlTriangle_t;

#define MDL_FACES_FRONT             1

// This mirrors trivert_t in trilib.h, is present so Quake knows how to
// load this data

typedef struct {
	byte v[3];
	byte lightnormalindex;
} mdlXyzNormal_t;

const int MDL_XYZNORMAL_SIZE = 4;

typedef struct {
	mdlXyzNormal_t bboxmin;     // lightnormal isn't used
	mdlXyzNormal_t bboxmax;     // lightnormal isn't used
	char name[16];          // frame name from grabbing
} mdlFrame_t;

const int MDL_FRAME_SIZE = ( MDL_XYZNORMAL_SIZE * 2 ) + 16;

typedef struct {
	int numframes;
	mdlXyzNormal_t bboxmin;     // lightnormal isn't used
	mdlXyzNormal_t bboxmax;     // lightnormal isn't used
} mdlFrameGroup_t;

const int MDL_FRAMEGROUP_SIZE = 4 + ( MDL_XYZNORMAL_SIZE * 2 );

typedef struct {
	int numskins;
} mdlSkinGroup_t;

typedef struct {
	float interval;
} mdlFrameInterval_t;

typedef struct {
	float interval;
} mdlSkinInterval_t;

typedef struct {
	aliasframetype_t type;
} mdlFrameType_t;

typedef struct {
	aliasskintype_t type;
} mdlSkinType_t;

#endif
