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spingle/source/gl_model.h

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/*
Copyright (C) 1996-2001 Id Software, Inc.
Copyright (C) 2002-2009 John Fitzgibbons and others
Copyright (C) 2010-2014 QuakeSpasm developers
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
*/
// entity effects
#define EF_BRIGHTFIELD 1
#define EF_MUZZLEFLASH 2
#define EF_BRIGHTLIGHT 4
#define EF_DIMLIGHT 8
/*
==============================================================================
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;
// ericw -- each texture has two chains, so we can clear the model chains
// without affecting the world
typedef enum
{
chain_world = 0,
chain_model = 1
} texchain_t;
typedef struct texture_s
{
char name[16];
unsigned width, height;
struct gltexture_s *gltexture; //johnfitz -- pointer to gltexture
struct gltexture_s *fullbright; //johnfitz -- fullbright mask texture
struct gltexture_s *warpimage; //johnfitz -- for water animation
bool update_warp; //johnfitz -- update warp this frame
struct msurface_s *texturechains[2]; // for texture chains
int32_t anim_total; // total tenths in sequence ( 0 = no)
int32_t 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
#define SURF_UNDERWATER 0x80
#define SURF_NOTEXTURE 0x100 //johnfitz
#define SURF_DRAWFENCE 0x200
#define SURF_DRAWLAVA 0x400
#define SURF_DRAWSLIME 0x800
#define SURF_DRAWTELE 0x1000
#define SURF_DRAWWATER 0x2000
// !!! if this is changed, it must be changed in asm_draw.h too !!!
typedef struct
{
uint32_t v[2];
uint32_t cachededgeoffset;
} medge_t;
typedef struct
{
float vecs[2][4];
float mipadjust;
texture_t *texture;
int32_t flags;
} mtexinfo_t;
#define VERTEXSIZE 7
typedef struct glpoly_s
{
struct glpoly_s *next;
struct glpoly_s *chain;
int32_t numverts;
float verts[4][VERTEXSIZE]; // variable sized (xyz s1t1 s2t2)
} glpoly_t;
typedef struct msurface_s
{
int32_t visframe; // should be drawn when node is crossed
bool culled; // johnfitz -- for frustum culling
float mins[3]; // johnfitz -- for frustum culling
float maxs[3]; // johnfitz -- for frustum culling
mplane_t *plane;
int32_t flags;
int32_t firstedge; // look up in model->surfedges[], negative numbers
int32_t numedges; // are backwards edges
int16_t texturemins[2];
int16_t extents[2];
int32_t light_s, light_t; // gl lightmap coordinates
glpoly_t *polys; // multiple if warped
struct msurface_s *texturechain;
mtexinfo_t *texinfo;
int32_t vbo_firstvert; // index of this surface's first vert in the VBO
// lighting info
int32_t dlightframe;
uint32_t dlightbits[(MAX_DLIGHTS + 31) >> 5];
// int32_t is 32 bits, need an array for MAX_DLIGHTS > 32
int32_t lightmaptexturenum;
byte styles[MAXLIGHTMAPS];
int32_t cached_light[MAXLIGHTMAPS]; // values currently used in lightmap
bool cached_dlight; // true if dynamic light in cache
byte *samples; // [numstyles*surfsize]
} msurface_t;
typedef struct mnode_s
{
// common with leaf
int32_t contents; // 0, to differentiate from leafs
int32_t visframe; // node needs to be traversed if current
float minmaxs[6]; // for bounding box culling
struct mnode_s *parent;
// node specific
mplane_t *plane;
struct mnode_s *children[2];
int32_t firstsurface;
int32_t numsurfaces;
} mnode_t;
typedef struct mleaf_s
{
// common with node
int32_t contents; // wil be a negative contents number
int32_t visframe; // node needs to be traversed if current
float minmaxs[6]; // for bounding box culling
struct mnode_s *parent;
// leaf specific
byte *compressed_vis;
efrag_t *efrags;
msurface_t **firstmarksurface;
int32_t nummarksurfaces;
int32_t key; // BSP sequence number for leaf's contents
byte ambient_sound_level[NUM_AMBIENTS];
} mleaf_t;
//johnfitz -- for clipnodes>32k
typedef struct mclipnode_s
{
int32_t planenum;
int32_t children[2]; // negative numbers are contents
} mclipnode_t;
//johnfitz
// !!! if this is changed, it must be changed in asm_i386.h too !!!
typedef struct
{
mclipnode_t *clipnodes; //johnfitz -- was dclipnode_t
mplane_t *planes;
int32_t firstclipnode;
int32_t lastclipnode;
vec3_t clip_mins;
vec3_t clip_maxs;
} hull_t;
/*
==============================================================================
SPRITE MODELS
==============================================================================
*/
// FIXME: shorten these?
typedef struct mspriteframe_s
{
int32_t width, height;
float up, down, left, right;
float smax, tmax; //johnfitz -- image might be padded
struct gltexture_s *gltexture;
} mspriteframe_t;
typedef struct
{
int32_t numframes;
float *intervals;
mspriteframe_t *frames[1];
} mspritegroup_t;
typedef struct
{
spriteframetype_t type;
mspriteframe_t *frameptr;
} mspriteframedesc_t;
typedef struct
{
int32_t type;
int32_t maxwidth;
int32_t maxheight;
int32_t 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.
==============================================================================
*/
//-- from RMQEngine
// split out to keep vertex sizes down
typedef struct aliasmesh_s
{
float st[2];
uint16_t vertindex;
} aliasmesh_t;
typedef struct meshxyz_s
{
byte xyz[4];
int8_t normal[4];
} meshxyz_t;
typedef struct meshst_s
{
float st[2];
} meshst_t;
//--
typedef struct
{
int32_t firstpose;
int32_t numposes;
float interval;
trivertx_t bboxmin;
trivertx_t bboxmax;
int32_t frame;
char name[16];
} maliasframedesc_t;
typedef struct
{
trivertx_t bboxmin;
trivertx_t bboxmax;
int32_t frame;
} maliasgroupframedesc_t;
typedef struct
{
int32_t numframes;
int32_t intervals;
maliasgroupframedesc_t frames[1];
} maliasgroup_t;
// !!! if this is changed, it must be changed in asm_draw.h too !!!
typedef struct mtriangle_s
{
int32_t facesfront;
int32_t vertindex[3];
} mtriangle_t;
#define MAX_SKINS 32
typedef struct
{
int32_t ident;
int32_t version;
vec3_t scale;
vec3_t scale_origin;
float boundingradius;
vec3_t eyeposition;
int32_t numskins;
int32_t skinwidth;
int32_t skinheight;
int32_t numverts;
int32_t numtris;
int32_t numframes;
synctype_t synctype;
int32_t flags;
float size;
//ericw -- used to populate vbo
int32_t numverts_vbo; // number of verts with unique x,y,z,s,t
intptr_t meshdesc; // offset into extradata: numverts_vbo aliasmesh_t
int32_t numindexes;
intptr_t indexes; // offset into extradata: numindexes unsigned shorts
intptr_t vertexes; // offset into extradata: numposes*vertsperframe trivertx_t
//ericw --
int32_t numposes;
int32_t poseverts;
int32_t posedata; // numposes*poseverts trivert_t
int32_t commands; // gl command list with embedded s/t
struct gltexture_s *gltextures[MAX_SKINS][4]; //johnfitz
struct gltexture_s *fbtextures[MAX_SKINS][4]; //johnfitz
int32_t texels[MAX_SKINS]; // only for player skins
maliasframedesc_t frames[1]; // variable sized
} aliashdr_t;
#define MAXALIASVERTS 2000 //johnfitz -- was 1024
#define MAXALIASFRAMES 256
#define MAXALIASTRIS 2048
extern aliashdr_t *pheader;
extern stvert_t stverts[MAXALIASVERTS];
extern mtriangle_t triangles[MAXALIASTRIS];
extern trivertx_t *poseverts[MAXALIASFRAMES];
//===================================================================
//
// Whole model
//
typedef enum {mod_brush, mod_sprite, mod_alias} modtype_t;
#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
#define MF_HOLEY (1u<<14) // MarkV/QSS -- make index 255 transparent on mdl's
//johnfitz -- extra flags for rendering
#define MOD_NOLERP 256 //don't lerp when animating
#define MOD_NOSHADOW 512 //don't cast a shadow
#define MOD_FBRIGHTHACK 1024 //when fullbrights are disabled, use a hack to render this model brighter
//johnfitz
typedef struct qmodel_s
{
char name[MAX_QPATH];
uint32_t path_id; // path id of the game directory
// that this model came from
bool needload; // bmodels and sprites don't cache normally
modtype_t type;
int32_t numframes;
synctype_t synctype;
int32_t flags;
//
// volume occupied by the model graphics
//
vec3_t mins, maxs;
vec3_t ymins, ymaxs; //johnfitz -- bounds for entities with nonzero yaw
vec3_t rmins, rmaxs; //johnfitz -- bounds for entities with nonzero pitch or roll
//johnfitz -- removed float radius;
//
// solid volume for clipping
//
bool clipbox;
vec3_t clipmins, clipmaxs;
//
// brush model
//
int32_t firstmodelsurface, nummodelsurfaces;
int32_t numsubmodels;
dmodel_t *submodels;
int32_t numplanes;
mplane_t *planes;
int32_t numleafs; // number of visible leafs, not counting 0
mleaf_t *leafs;
int32_t numvertexes;
mvertex_t *vertexes;
int32_t numedges;
medge_t *edges;
int32_t numnodes;
mnode_t *nodes;
int32_t numtexinfo;
mtexinfo_t *texinfo;
int32_t numsurfaces;
msurface_t *surfaces;
int32_t numsurfedges;
int32_t *surfedges;
int32_t numclipnodes;
mclipnode_t *clipnodes; //johnfitz -- was dclipnode_t
int32_t nummarksurfaces;
msurface_t **marksurfaces;
hull_t hulls[MAX_MAP_HULLS];
int32_t numtextures;
texture_t **textures;
byte *visdata;
byte *lightdata;
char *entities;
bool viswarn; // for Mod_DecompressVis()
int32_t bspversion;
//
// alias model
//
GLuint meshvbo;
GLuint meshindexesvbo;
int32_t vboindexofs; // offset in vbo of the hdr->numindexes unsigned shorts
int32_t vboxyzofs; // offset in vbo of hdr->numposes*hdr->numverts_vbo meshxyz_t
int32_t vbostofs; // offset in vbo of hdr->numverts_vbo meshst_t
//
// additional model data
//
cache_user_t cache; // only access through Mod_Extradata
} qmodel_t;
//============================================================================
void Mod_Init(void);
void Mod_ClearAll(void);
void Mod_ResetAll(void); // for gamedir changes (Host_Game_f)
qmodel_t *Mod_ForName(const char *name, bool crash);
void *Mod_Extradata(qmodel_t *mod); // handles caching
void Mod_TouchModel(const char *name);
mleaf_t *Mod_PointInLeaf(float *p, qmodel_t *model);
byte *Mod_LeafPVS(mleaf_t *leaf, qmodel_t *model);
byte *Mod_NoVisPVS(qmodel_t *model);
void Mod_SetExtraFlags(qmodel_t *mod);
#endif // __MODEL__
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