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Diffstat (limited to 'source/d_md2.h')
| -rw-r--r-- | source/d_md2.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/source/d_md2.h b/source/d_md2.h new file mode 100644 index 0000000..be907ed --- /dev/null +++ b/source/d_md2.h @@ -0,0 +1,97 @@ +/* +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; + |