1 files changed, 383 insertions, 0 deletions

diff --git a/apps/plugins/sdl/progs/quake/model.h b/apps/plugins/sdl/progs/quake/model.h
new file mode 100644
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+++ b/apps/plugins/sdl/progs/quake/model.h
@@ -0,0 +1,383 @@
+/*
+Copyright (C) 1996-1997 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.
+
+*/
+
+#ifndef __MODEL__
+#define __MODEL__
+
+#include "modelgen.h"
+#include "spritegn.h"
+
+/*
+
+d*_t structures are on-disk representations
+m*_t structures are in-memory
+
+*/
+
+/*
+==============================================================================
+
+BRUSH MODELS
+
+==============================================================================
+*/
+
+
+//
+// in memory representation
+//
+// !!! if this is changed, it must be changed in asm_draw.h too !!!
+typedef struct
+{
+        vec3_t          position;
+} mvertex_t;
+
+#define SIDE_FRONT      0
+#define SIDE_BACK       1
+#define SIDE_ON         2
+
+
+// plane_t structure
+// !!! if this is changed, it must be changed in asm_i386.h too !!!
+typedef struct mplane_s
+{
+        vec3_t  normal;
+        float   dist;
+        byte    type;                   // for texture axis selection and fast side tests
+        byte    signbits;               // signx + signy<<1 + signz<<1
+        byte    pad[2];
+} mplane_t;
+
+typedef struct texture_s
+{
+        char            name[16];
+        unsigned        width, height;
+        int                     anim_total;                             // total tenths in sequence ( 0 = no)
+        int                     anim_min, anim_max;             // time for this frame min <=time< max
+        struct texture_s *anim_next;            // in the animation sequence
+        struct texture_s *alternate_anims;      // bmodels in frmae 1 use these
+        unsigned        offsets[MIPLEVELS];             // four mip maps stored
+} texture_t;
+
+
+#define SURF_PLANEBACK          2
+#define SURF_DRAWSKY            4
+#define SURF_DRAWSPRITE         8
+#define SURF_DRAWTURB           0x10
+#define SURF_DRAWTILED          0x20
+#define SURF_DRAWBACKGROUND     0x40
+
+// !!! if this is changed, it must be changed in asm_draw.h too !!!
+typedef struct
+{
+        unsigned short  v[2];
+        unsigned int    cachededgeoffset;
+} medge_t;
+
+typedef struct
+{
+        float           vecs[2][4];
+        float           mipadjust;
+        texture_t       *texture;
+        int                     flags;
+} mtexinfo_t;
+
+typedef struct msurface_s
+{
+        int                     visframe;               // should be drawn when node is crossed
+
+        int                     dlightframe;
+        int                     dlightbits;
+
+        mplane_t        *plane;
+        int                     flags;
+
+        int                     firstedge;      // look up in model->surfedges[], negative numbers
+        int                     numedges;       // are backwards edges
+        
+// surface generation data
+        struct surfcache_s      *cachespots[MIPLEVELS];
+
+        short           texturemins[2];
+        short           extents[2];
+
+        mtexinfo_t      *texinfo;
+        
+// lighting info
+        byte            styles[MAXLIGHTMAPS];
+        byte            *samples;               // [numstyles*surfsize]
+} msurface_t;
+
+typedef struct mnode_s
+{
+// common with leaf
+        int                     contents;               // 0, to differentiate from leafs
+        int                     visframe;               // node needs to be traversed if current
+        
+        short           minmaxs[6];             // for bounding box culling
+
+        struct mnode_s  *parent;
+
+// node specific
+        mplane_t        *plane;
+        struct mnode_s  *children[2];   
+
+        unsigned short          firstsurface;
+        unsigned short          numsurfaces;
+} mnode_t;
+
+
+
+typedef struct mleaf_s
+{
+// common with node
+        int                     contents;               // wil be a negative contents number
+        int                     visframe;               // node needs to be traversed if current
+
+        short           minmaxs[6];             // for bounding box culling
+
+        struct mnode_s  *parent;
+
+// leaf specific
+        byte            *compressed_vis;
+        efrag_t         *efrags;
+
+        msurface_t      **firstmarksurface;
+        int                     nummarksurfaces;
+        int                     key;                    // BSP sequence number for leaf's contents
+        byte            ambient_sound_level[NUM_AMBIENTS];
+} mleaf_t;
+
+// !!! if this is changed, it must be changed in asm_i386.h too !!!
+typedef struct
+{
+        dclipnode_t     *clipnodes;
+        mplane_t        *planes;
+        int                     firstclipnode;
+        int                     lastclipnode;
+        vec3_t          clip_mins;
+        vec3_t          clip_maxs;
+} hull_t;
+
+/*
+==============================================================================
+
+SPRITE MODELS
+
+==============================================================================
+*/
+
+
+// FIXME: shorten these?
+typedef struct mspriteframe_s
+{
+        int             width;
+        int             height;
+        void    *pcachespot;                    // remove?
+        float   up, down, left, right;
+        byte    pixels[4];
+} mspriteframe_t;
+
+typedef struct
+{
+        int                             numframes;
+        float                   *intervals;
+        mspriteframe_t  *frames[1];
+} mspritegroup_t;
+
+typedef struct
+{
+        spriteframetype_t       type;
+        mspriteframe_t          *frameptr;
+} mspriteframedesc_t;
+
+typedef struct
+{
+        int                                     type;
+        int                                     maxwidth;
+        int                                     maxheight;
+        int                                     numframes;
+        float                           beamlength;             // remove?
+        void                            *cachespot;             // remove?
+        mspriteframedesc_t      frames[1];
+} msprite_t;
+
+
+/*
+==============================================================================
+
+ALIAS MODELS
+
+Alias models are position independent, so the cache manager can move them.
+==============================================================================
+*/
+
+typedef struct
+{
+        aliasframetype_t        type;
+        trivertx_t                      bboxmin;
+        trivertx_t                      bboxmax;
+        int                                     frame;
+        char                            name[16];
+} maliasframedesc_t;
+
+typedef struct
+{
+        aliasskintype_t         type;
+        void                            *pcachespot;
+        int                                     skin;
+} maliasskindesc_t;
+
+typedef struct
+{
+        trivertx_t                      bboxmin;
+        trivertx_t                      bboxmax;
+        int                                     frame;
+} maliasgroupframedesc_t;
+
+typedef struct
+{
+        int                                             numframes;
+        int                                             intervals;
+        maliasgroupframedesc_t  frames[1];
+} maliasgroup_t;
+
+typedef struct
+{
+        int                                     numskins;
+        int                                     intervals;
+        maliasskindesc_t        skindescs[1];
+} maliasskingroup_t;
+
+// !!! if this is changed, it must be changed in asm_draw.h too !!!
+typedef struct mtriangle_s {
+        int                                     facesfront;
+        int                                     vertindex[3];
+} mtriangle_t;
+
+typedef struct {
+        int                                     model;
+        int                                     stverts;
+        int                                     skindesc;
+        int                                     triangles;
+        maliasframedesc_t       frames[1];
+} aliashdr_t;
+
+//===================================================================
+
+//
+// Whole model
+//
+
+typedef int modtype_t;
+enum {mod_brush, mod_sprite, mod_alias};
+
+#define EF_ROCKET       1                       // leave a trail
+#define EF_GRENADE      2                       // leave a trail
+#define EF_GIB          4                       // leave a trail
+#define EF_ROTATE       8                       // rotate (bonus items)
+#define EF_TRACER       16                      // green split trail
+#define EF_ZOMGIB       32                      // small blood trail
+#define EF_TRACER2      64                      // orange split trail + rotate
+#define EF_TRACER3      128                     // purple trail
+
+typedef struct model_s
+{
+        char            name[MAX_QPATH];
+        qboolean        needload;               // bmodels and sprites don't cache normally
+
+        modtype_t       type;
+        int                     numframes;
+        synctype_t      synctype;
+        
+        int                     flags;
+
+//
+// volume occupied by the model
+//              
+        vec3_t          mins, maxs;
+        float           radius;
+
+//
+// brush model
+//
+        int                     firstmodelsurface, nummodelsurfaces;
+
+        int                     numsubmodels;
+        dmodel_t        *submodels;
+
+        int                     numplanes;
+        mplane_t        *planes;
+
+        int                     numleafs;               // number of visible leafs, not counting 0
+        mleaf_t         *leafs;
+
+        int                     numvertexes;
+        mvertex_t       *vertexes;
+
+        int                     numedges;
+        medge_t         *edges;
+
+        int                     numnodes;
+        mnode_t         *nodes;
+
+        int                     numtexinfo;
+        mtexinfo_t      *texinfo;
+
+        int                     numsurfaces;
+        msurface_t      *surfaces;
+
+        int                     numsurfedges;
+        int                     *surfedges;
+
+        int                     numclipnodes;
+        dclipnode_t     *clipnodes;
+
+        int                     nummarksurfaces;
+        msurface_t      **marksurfaces;
+
+        hull_t          hulls[MAX_MAP_HULLS];
+
+        int                     numtextures;
+        texture_t       **textures;
+
+        byte            *visdata;
+        byte            *lightdata;
+        char            *entities;
+
+//
+// additional model data
+//
+        cache_user_t    cache;          // only access through Mod_Extradata
+
+} model_t;
+
+//============================================================================
+
+void    Mod_Init (void);
+void    Mod_ClearAll (void);
+model_t *Mod_ForName (char *name, qboolean crash);
+void    *Mod_Extradata (model_t *mod);  // handles caching
+void    Mod_TouchModel (char *name);
+
+mleaf_t *Mod_PointInLeaf (float *p, model_t *model);
+byte    *Mod_LeafPVS (mleaf_t *leaf, model_t *model);
+
+#endif  // __MODEL__