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/*
Copyright (C) 1997-2001 Id Software, Inc.
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 2
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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
========================================================================
.MD2 triangle model file format
========================================================================
*/
#define MD2_IDENT (('2'<<24)+('P'<<16)+('D'<<8)+'I')
#define MD2_VERSION 8
#define MD2_MAX_TRIANGLES 4096
#define MD2_MAX_VERTS 2048
#define MD2_MAX_FRAMES 512
#define MD2_MAX_SKINS 32
#define MD2_MAX_SKINNAME 64
#define MD2_MAX_SKINWIDTH 640
#define MD2_MAX_SKINHEIGHT 480
typedef struct {
int16_t s;
int16_t t;
} dmd2stvert_t;
typedef struct {
uint16_t index_xyz[3];
uint16_t index_st[3];
} dmd2triangle_t;
typedef struct {
uint8_t v[3]; // scaled byte to fit in frame mins/maxs
uint8_t lightnormalindex;
} dmd2trivertx_t;
typedef struct {
float scale[3]; // multiply byte verts by this
float translate[3]; // then add this
char name[16]; // frame name from grabbing
dmd2trivertx_t verts[1]; // variable sized
} dmd2frame_t;
#define MD2_MAX_FRAMESIZE \
( sizeof( dmd2frame_t ) + sizeof( dmd2trivertx_t ) * ( MD2_MAX_VERTS - 1 ) )
// the glcmd format:
// a positive integer starts a tristrip command, followed by that many
// vertex structures.
// a negative integer starts a trifan command, followed by -x vertexes
// a zero indicates the end of the command list.
// a vertex consists of a floating point s, a floating point t,
// and an integer vertex index.
typedef struct dmd2header_s {
uint32_t ident;
uint32_t version;
uint32_t skinwidth;
uint32_t skinheight;
uint32_t framesize; // byte size of each frame
uint32_t num_skins;
uint32_t num_xyz;
uint32_t num_st; // greater than num_xyz for seams
uint32_t num_tris;
uint32_t num_glcmds; // dwords in strip/fan command list
uint32_t num_frames;
uint32_t ofs_skins; // each skin is a MAX_SKINNAME string
uint32_t ofs_st; // byte offset from start for stverts
uint32_t ofs_tris; // offset for dtriangles
uint32_t ofs_frames; // offset for first frame
uint32_t ofs_glcmds;
uint32_t ofs_end; // end of file
} dmd2header_t;
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