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The original Quake 2 sources as originally released under the GPL license on December 21, 2001.
This commit is contained in:
Travis Bradshaw
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ref_soft/r_model.h
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256
ref_soft/r_model.h
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/*
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Copyright (C) 1997-2001 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __MODEL__
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#define __MODEL__
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/*
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d*_t structures are on-disk representations
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m*_t structures are in-memory
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*/
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/*
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==============================================================================
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BRUSH MODELS
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==============================================================================
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*/
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//
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// in memory representation
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//
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// !!! if this is changed, it must be changed in asm_draw.h too !!!
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typedef struct
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{
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vec3_t position;
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} mvertex_t;
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#define SIDE_FRONT 0
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#define SIDE_BACK 1
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#define SIDE_ON 2
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// plane_t structure
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// !!! if this is changed, it must be changed in asm_i386.h too !!!
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typedef struct mplane_s
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{
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vec3_t normal;
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float dist;
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byte type; // for texture axis selection and fast side tests
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byte signbits; // signx + signy<<1 + signz<<1
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byte pad[2];
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} mplane_t;
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// FIXME: differentiate from texinfo SURF_ flags
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#define SURF_PLANEBACK 2
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#define SURF_DRAWSKY 4 // sky brush face
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#define SURF_DRAWTURB 0x10
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#define SURF_DRAWBACKGROUND 0x40
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#define SURF_DRAWSKYBOX 0x80 // sky box
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#define SURF_FLOW 0x100 //PGM
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// !!! if this is changed, it must be changed in asm_draw.h too !!!
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typedef struct
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{
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unsigned short v[2];
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unsigned int cachededgeoffset;
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} medge_t;
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typedef struct mtexinfo_s
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{
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float vecs[2][4];
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float mipadjust;
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image_t *image;
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int flags;
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int numframes;
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struct mtexinfo_s *next; // animation chain
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} mtexinfo_t;
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typedef struct msurface_s
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{
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int visframe; // should be drawn when node is crossed
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int dlightframe;
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int dlightbits;
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mplane_t *plane;
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int flags;
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int firstedge; // look up in model->surfedges[], negative numbers
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int numedges; // are backwards edges
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// surface generation data
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struct surfcache_s *cachespots[MIPLEVELS];
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short texturemins[2];
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short extents[2];
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mtexinfo_t *texinfo;
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// lighting info
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byte styles[MAXLIGHTMAPS];
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byte *samples; // [numstyles*surfsize]
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struct msurface_s *nextalphasurface;
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} msurface_t;
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#define CONTENTS_NODE -1
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typedef struct mnode_s
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{
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// common with leaf
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int contents; // CONTENTS_NODE, to differentiate from leafs
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int visframe; // node needs to be traversed if current
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short minmaxs[6]; // for bounding box culling
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struct mnode_s *parent;
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// node specific
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mplane_t *plane;
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struct mnode_s *children[2];
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unsigned short firstsurface;
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unsigned short numsurfaces;
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} mnode_t;
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typedef struct mleaf_s
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{
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// common with node
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int contents; // wil be something other than CONTENTS_NODE
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int visframe; // node needs to be traversed if current
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short minmaxs[6]; // for bounding box culling
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struct mnode_s *parent;
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// leaf specific
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int cluster;
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int area;
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msurface_t **firstmarksurface;
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int nummarksurfaces;
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int key; // BSP sequence number for leaf's contents
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} mleaf_t;
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//===================================================================
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//
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// Whole model
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//
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typedef enum {mod_bad, mod_brush, mod_sprite, mod_alias } modtype_t;
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typedef struct model_s
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{
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char name[MAX_QPATH];
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int registration_sequence;
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modtype_t type;
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int numframes;
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int flags;
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//
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// volume occupied by the model graphics
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//
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vec3_t mins, maxs;
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//
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// solid volume for clipping (sent from server)
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//
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qboolean clipbox;
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vec3_t clipmins, clipmaxs;
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//
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// brush model
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//
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int firstmodelsurface, nummodelsurfaces;
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int numsubmodels;
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dmodel_t *submodels;
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int numplanes;
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mplane_t *planes;
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int numleafs; // number of visible leafs, not counting 0
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mleaf_t *leafs;
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int numvertexes;
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mvertex_t *vertexes;
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int numedges;
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medge_t *edges;
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int numnodes;
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int firstnode;
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mnode_t *nodes;
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int numtexinfo;
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mtexinfo_t *texinfo;
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int numsurfaces;
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msurface_t *surfaces;
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int numsurfedges;
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int *surfedges;
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int nummarksurfaces;
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msurface_t **marksurfaces;
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dvis_t *vis;
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byte *lightdata;
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// for alias models and sprites
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image_t *skins[MAX_MD2SKINS];
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void *extradata;
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int extradatasize;
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} model_t;
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//============================================================================
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void Mod_Init (void);
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void Mod_ClearAll (void);
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model_t *Mod_ForName (char *name, qboolean crash);
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void *Mod_Extradata (model_t *mod); // handles caching
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void Mod_TouchModel (char *name);
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mleaf_t *Mod_PointInLeaf (float *p, model_t *model);
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byte *Mod_ClusterPVS (int cluster, model_t *model);
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void Mod_Modellist_f (void);
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void Mod_FreeAll (void);
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void Mod_Free (model_t *mod);
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extern int registration_sequence;
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#endif // __MODEL__
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