gl_model.c File Reference

#include "gl_local.h"

Go to the source code of this file.

Macros
#define	MAX_MOD_KNOWN   512

Functions
void	Mod_LoadSpriteModel (model_t *mod, void *buffer)
void	Mod_LoadBrushModel (model_t *mod, void *buffer)
void	Mod_LoadAliasModel (model_t *mod, void *buffer)
model_t *	Mod_LoadModel (model_t *mod, qboolean crash)
mleaf_t *	Mod_PointInLeaf (vec3_t p, model_t *model)
byte *	Mod_DecompressVis (byte *in, model_t *model)
byte *	Mod_ClusterPVS (int cluster, model_t *model)
void	Mod_Modellist_f (void)
void	Mod_Init (void)
model_t *	Mod_ForName (char *name, qboolean crash)
void	Mod_LoadLighting (lump_t *l)
void	Mod_LoadVisibility (lump_t *l)
void	Mod_LoadVertexes (lump_t *l)
float	RadiusFromBounds (vec3_t mins, vec3_t maxs)
void	Mod_LoadSubmodels (lump_t *l)
void	Mod_LoadEdges (lump_t *l)
void	Mod_LoadTexinfo (lump_t *l)
void	CalcSurfaceExtents (msurface_t *s)
void	GL_BuildPolygonFromSurface (msurface_t *fa)
void	GL_CreateSurfaceLightmap (msurface_t *surf)
void	GL_EndBuildingLightmaps (void)
void	GL_BeginBuildingLightmaps (model_t *m)
void	Mod_LoadFaces (lump_t *l)
void	Mod_SetParent (mnode_t *node, mnode_t *parent)
void	Mod_LoadNodes (lump_t *l)
void	Mod_LoadLeafs (lump_t *l)
void	Mod_LoadMarksurfaces (lump_t *l)
void	Mod_LoadSurfedges (lump_t *l)
void	Mod_LoadPlanes (lump_t *l)
void	R_BeginRegistration (char *model)
struct model_s *	R_RegisterModel (char *name)
void	R_EndRegistration (void)
void	Mod_Free (model_t *mod)
void	Mod_FreeAll (void)

Variables
model_t *	loadmodel
int	modfilelen
byte	mod_novis [MAX_MAP_LEAFS/8]
model_t	mod_known [MAX_MOD_KNOWN]
int	mod_numknown
model_t	mod_inline [MAX_MOD_KNOWN]
int	registration_sequence
byte *	mod_base

Macro Definition Documentation

MAX_MOD_KNOWN

#define MAX_MOD_KNOWN   512

Definition at line 34 of file gl_model.c.

Function Documentation

CalcSurfaceExtents()

void CalcSurfaceExtents

(

msurface_t *

s

)

Definition at line 500 of file gl_model.c.

{
    float   mins[2], maxs[2], val;
    int     i,j, e;
    mvertex_t   *v;
    mtexinfo_t  *tex;
    int     bmins[2], bmaxs[2];
 
    mins[0] = mins[1] = 999999;
    maxs[0] = maxs[1] = -99999;
 
    tex = s->texinfo;
    
    for (i=0 ; i<s->numedges ; i++)
    {
        e = loadmodel->surfedges[s->firstedge+i];
        if (e >= 0)
            v = &loadmodel->vertexes[loadmodel->edges[e].v[0]];
        else
            v = &loadmodel->vertexes[loadmodel->edges[-e].v[1]];
        
        for (j=0 ; j<2 ; j++)
        {
            val = v->position[0] * tex->vecs[j][0] + 
                v->position[1] * tex->vecs[j][1] +
                v->position[2] * tex->vecs[j][2] +
                tex->vecs[j][3];
            if (val < mins[j])
                mins[j] = val;
            if (val > maxs[j])
                maxs[j] = val;
        }
    }
 
    for (i=0 ; i<2 ; i++)
    {   
        bmins[i] = floor(mins[i]/16);
        bmaxs[i] = ceil(maxs[i]/16);
 
        s->texturemins[i] = bmins[i] * 16;
        s->extents[i] = (bmaxs[i] - bmins[i]) * 16;
 
//      if ( !(tex->flags & TEX_SPECIAL) && s->extents[i] > 512 /* 256 */ )
//          ri.Sys_Error (ERR_DROP, "Bad surface extents");
    }
}

Referenced by Mod_LoadFaces().

GL_BeginBuildingLightmaps()

void GL_BeginBuildingLightmaps

(

model_t *

m

)

Definition at line 1565 of file gl_rsurf.c.

{
    static lightstyle_t lightstyles[MAX_LIGHTSTYLES];
    int             i;
    unsigned        dummy[128*128];
 
    memset( gl_lms.allocated, 0, sizeof(gl_lms.allocated) );
 
    r_framecount = 1;       // no dlightcache
 
    GL_EnableMultitexture( true );
    GL_SelectTexture( gl_texture1);
 
    /*
    ** setup the base lightstyles so the lightmaps won't have to be regenerated
    ** the first time they're seen
    */
    for (i=0 ; i<MAX_LIGHTSTYLES ; i++)
    {
        lightstyles[i].rgb[0] = 1;
        lightstyles[i].rgb[1] = 1;
        lightstyles[i].rgb[2] = 1;
        lightstyles[i].white = 3;
    }
    r_newrefdef.lightstyles = lightstyles;
 
    if (!gl_state.lightmap_textures)
    {
        gl_state.lightmap_textures  = TEXNUM_LIGHTMAPS;
//      gl_state.lightmap_textures  = gl_state.texture_extension_number;
//      gl_state.texture_extension_number = gl_state.lightmap_textures + MAX_LIGHTMAPS;
    }
 
    gl_lms.current_lightmap_texture = 1;
 
    /*
    ** if mono lightmaps are enabled and we want to use alpha
    ** blending (a,1-a) then we're likely running on a 3DLabs
    ** Permedia2.  In a perfect world we'd use a GL_ALPHA lightmap
    ** in order to conserve space and maximize bandwidth, however 
    ** this isn't a perfect world.
    **
    ** So we have to use alpha lightmaps, but stored in GL_RGBA format,
    ** which means we only get 1/16th the color resolution we should when
    ** using alpha lightmaps.  If we find another board that supports
    ** only alpha lightmaps but that can at least support the GL_ALPHA
    ** format then we should change this code to use real alpha maps.
    */
    if ( toupper( gl_monolightmap->string[0] ) == 'A' )
    {
        gl_lms.internal_format = gl_tex_alpha_format;
    }
    /*
    ** try to do hacked colored lighting with a blended texture
    */
    else if ( toupper( gl_monolightmap->string[0] ) == 'C' )
    {
        gl_lms.internal_format = gl_tex_alpha_format;
    }
    else if ( toupper( gl_monolightmap->string[0] ) == 'I' )
    {
        gl_lms.internal_format = GL_INTENSITY8;
    }
    else if ( toupper( gl_monolightmap->string[0] ) == 'L' ) 
    {
        gl_lms.internal_format = GL_LUMINANCE8;
    }
    else
    {
        gl_lms.internal_format = gl_tex_solid_format;
    }
 
    /*
    ** initialize the dynamic lightmap texture
    */
    GL_Bind( gl_state.lightmap_textures + 0 );
    qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    qglTexImage2D( GL_TEXTURE_2D, 
                   0, 
                   gl_lms.internal_format,
                   BLOCK_WIDTH, BLOCK_HEIGHT, 
                   0, 
                   GL_LIGHTMAP_FORMAT, 
                   GL_UNSIGNED_BYTE, 
                   dummy );
}

Referenced by Mod_LoadFaces().

GL_BuildPolygonFromSurface()

void GL_BuildPolygonFromSurface

(

msurface_t *

fa

)

Definition at line 1450 of file gl_rsurf.c.

{
    int         i, lindex, lnumverts;
    medge_t     *pedges, *r_pedge;
    int         vertpage;
    float       *vec;
    float       s, t;
    glpoly_t    *poly;
    vec3_t      total;
 
// reconstruct the polygon
    pedges = currentmodel->edges;
    lnumverts = fa->numedges;
    vertpage = 0;
 
    VectorClear (total);
    //
    // draw texture
    //
    poly = Hunk_Alloc (sizeof(glpoly_t) + (lnumverts-4) * VERTEXSIZE*sizeof(float));
    poly->next = fa->polys;
    poly->flags = fa->flags;
    fa->polys = poly;
    poly->numverts = lnumverts;
 
    for (i=0 ; i<lnumverts ; i++)
    {
        lindex = currentmodel->surfedges[fa->firstedge + i];
 
        if (lindex > 0)
        {
            r_pedge = &pedges[lindex];
            vec = currentmodel->vertexes[r_pedge->v[0]].position;
        }
        else
        {
            r_pedge = &pedges[-lindex];
            vec = currentmodel->vertexes[r_pedge->v[1]].position;
        }
        s = DotProduct (vec, fa->texinfo->vecs[0]) + fa->texinfo->vecs[0][3];
        s /= fa->texinfo->image->width;
 
        t = DotProduct (vec, fa->texinfo->vecs[1]) + fa->texinfo->vecs[1][3];
        t /= fa->texinfo->image->height;
 
        VectorAdd (total, vec, total);
        VectorCopy (vec, poly->verts[i]);
        poly->verts[i][3] = s;
        poly->verts[i][4] = t;
 
        //
        // lightmap texture coordinates
        //
        s = DotProduct (vec, fa->texinfo->vecs[0]) + fa->texinfo->vecs[0][3];
        s -= fa->texturemins[0];
        s += fa->light_s*16;
        s += 8;
        s /= BLOCK_WIDTH*16; //fa->texinfo->texture->width;
 
        t = DotProduct (vec, fa->texinfo->vecs[1]) + fa->texinfo->vecs[1][3];
        t -= fa->texturemins[1];
        t += fa->light_t*16;
        t += 8;
        t /= BLOCK_HEIGHT*16; //fa->texinfo->texture->height;
 
        poly->verts[i][5] = s;
        poly->verts[i][6] = t;
    }
 
    poly->numverts = lnumverts;
 
}

Referenced by Mod_LoadFaces().

GL_CreateSurfaceLightmap()

void GL_CreateSurfaceLightmap

(

msurface_t *

surf

)

Definition at line 1528 of file gl_rsurf.c.

{
    int     smax, tmax;
    byte    *base;
 
    if (surf->flags & (SURF_DRAWSKY|SURF_DRAWTURB))
        return;
 
    smax = (surf->extents[0]>>4)+1;
    tmax = (surf->extents[1]>>4)+1;
 
    if ( !LM_AllocBlock( smax, tmax, &surf->light_s, &surf->light_t ) )
    {
        LM_UploadBlock( false );
        LM_InitBlock();
        if ( !LM_AllocBlock( smax, tmax, &surf->light_s, &surf->light_t ) )
        {
            ri.Sys_Error( ERR_FATAL, "Consecutive calls to LM_AllocBlock(%d,%d) failed\n", smax, tmax );
        }
    }
 
    surf->lightmaptexturenum = gl_lms.current_lightmap_texture;
 
    base = gl_lms.lightmap_buffer;
    base += (surf->light_t * BLOCK_WIDTH + surf->light_s) * LIGHTMAP_BYTES;
 
    R_SetCacheState( surf );
    R_BuildLightMap (surf, base, BLOCK_WIDTH*LIGHTMAP_BYTES);
}

Referenced by Mod_LoadFaces().

GL_EndBuildingLightmaps()

void GL_EndBuildingLightmaps

(

void

)

Definition at line 1658 of file gl_rsurf.c.

{
    LM_UploadBlock( false );
    GL_EnableMultitexture( false );
}

Referenced by Mod_LoadFaces().

Mod_ClusterPVS()

byte* Mod_ClusterPVS	(	int	cluster,
		model_t *	model
	)

Definition at line 124 of file gl_model.c.

{
    if (cluster == -1 || !model->vis)
        return mod_novis;
    return Mod_DecompressVis ( (byte *)model->vis + model->vis->bitofs[cluster][DVIS_PVS],
        model);
}

Mod_DecompressVis()

byte* Mod_DecompressVis	(	byte *	in,
		model_t *	model
	)

Definition at line 79 of file gl_model.c.

{
    static byte decompressed[MAX_MAP_LEAFS/8];
    int     c;
    byte    *out;
    int     row;
 
    row = (model->vis->numclusters+7)>>3;   
    out = decompressed;
 
    if (!in)
    {   // no vis info, so make all visible
        while (row)
        {
            *out++ = 0xff;
            row--;
        }
        return decompressed;        
    }
 
    do
    {
        if (*in)
        {
            *out++ = *in++;
            continue;
        }
    
        c = in[1];
        in += 2;
        while (c)
        {
            *out++ = 0;
            c--;
        }
    } while (out - decompressed < row);
    
    return decompressed;
}

Referenced by Mod_ClusterPVS().

Mod_ForName()

model_t* Mod_ForName	(	char *	name,
		qboolean	crash
	)

Definition at line 177 of file gl_model.c.

{
    model_t *mod;
    unsigned *buf;
    int     i;
    
    if (!name[0])
        ri.Sys_Error (ERR_DROP, "Mod_ForName: NULL name");
        
    //
    // inline models are grabbed only from worldmodel
    //
    if (name[0] == '*')
    {
        i = atoi(name+1);
        if (i < 1 || !r_worldmodel || i >= r_worldmodel->numsubmodels)
            ri.Sys_Error (ERR_DROP, "bad inline model number");
        return &mod_inline[i];
    }
 
    //
    // search the currently loaded models
    //
    for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++)
    {
        if (!mod->name[0])
            continue;
        if (!strcmp (mod->name, name) )
            return mod;
    }
    
    //
    // find a free model slot spot
    //
    for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++)
    {
        if (!mod->name[0])
            break;  // free spot
    }
    if (i == mod_numknown)
    {
        if (mod_numknown == MAX_MOD_KNOWN)
            ri.Sys_Error (ERR_DROP, "mod_numknown == MAX_MOD_KNOWN");
        mod_numknown++;
    }
    strcpy (mod->name, name);
    
    //
    // load the file
    //
    modfilelen = ri.FS_LoadFile (mod->name, (void **)&buf);
    if (!buf)
    {
        if (crash)
            ri.Sys_Error (ERR_DROP, "Mod_NumForName: %s not found", mod->name);
        memset (mod->name, 0, sizeof(mod->name));
        return NULL;
    }
    
    loadmodel = mod;
 
    //
    // fill it in
    //
 
 
    // call the apropriate loader
    
    switch (LittleLong(*(unsigned *)buf))
    {
    case IDALIASHEADER:
        loadmodel->extradata = Hunk_Begin (0x200000);
        Mod_LoadAliasModel (mod, buf);
        break;
        
    case IDSPRITEHEADER:
        loadmodel->extradata = Hunk_Begin (0x10000);
        Mod_LoadSpriteModel (mod, buf);
        break;
    
    case IDBSPHEADER:
        loadmodel->extradata = Hunk_Begin (0x1000000);
        Mod_LoadBrushModel (mod, buf);
        break;
 
    default:
        ri.Sys_Error (ERR_DROP,"Mod_NumForName: unknown fileid for %s", mod->name);
        break;
    }
 
    loadmodel->extradatasize = Hunk_End ();
 
    ri.FS_FreeFile (buf);
 
    return mod;
}

Referenced by R_BeginRegistration(), and R_RegisterModel().

Mod_Free()

void Mod_Free

(

model_t *

mod

)

Definition at line 1206 of file gl_model.c.

{
    Hunk_Free (mod->extradata);
    memset (mod, 0, sizeof(*mod));
}

Referenced by Mod_FreeAll(), R_BeginRegistration(), and R_EndRegistration().

Mod_FreeAll()

void Mod_FreeAll

(

void

)

Definition at line 1217 of file gl_model.c.

{
    int     i;
 
    for (i=0 ; i<mod_numknown ; i++)
    {
        if (mod_known[i].extradatasize)
            Mod_Free (&mod_known[i]);
    }
}

Mod_Init()

void Mod_Init

(

void

)

Definition at line 163 of file gl_model.c.

{
    memset (mod_novis, 0xff, sizeof(mod_novis));
}

Mod_LoadAliasModel()

void Mod_LoadAliasModel	(	model_t *	mod,
		void *	buffer
	)

Definition at line 932 of file gl_model.c.

{
    int                 i, j;
    dmdl_t              *pinmodel, *pheader;
    dstvert_t           *pinst, *poutst;
    dtriangle_t         *pintri, *pouttri;
    daliasframe_t       *pinframe, *poutframe;
    int                 *pincmd, *poutcmd;
    int                 version;
 
    pinmodel = (dmdl_t *)buffer;
 
    version = LittleLong (pinmodel->version);
    if (version != ALIAS_VERSION)
        ri.Sys_Error (ERR_DROP, "%s has wrong version number (%i should be %i)",
                 mod->name, version, ALIAS_VERSION);
 
    pheader = Hunk_Alloc (LittleLong(pinmodel->ofs_end));
    
    // byte swap the header fields and sanity check
    for (i=0 ; i<sizeof(dmdl_t)/4 ; i++)
        ((int *)pheader)[i] = LittleLong (((int *)buffer)[i]);
 
    if (pheader->skinheight > MAX_LBM_HEIGHT)
        ri.Sys_Error (ERR_DROP, "model %s has a skin taller than %d", mod->name,
                   MAX_LBM_HEIGHT);
 
    if (pheader->num_xyz <= 0)
        ri.Sys_Error (ERR_DROP, "model %s has no vertices", mod->name);
 
    if (pheader->num_xyz > MAX_VERTS)
        ri.Sys_Error (ERR_DROP, "model %s has too many vertices", mod->name);
 
    if (pheader->num_st <= 0)
        ri.Sys_Error (ERR_DROP, "model %s has no st vertices", mod->name);
 
    if (pheader->num_tris <= 0)
        ri.Sys_Error (ERR_DROP, "model %s has no triangles", mod->name);
 
    if (pheader->num_frames <= 0)
        ri.Sys_Error (ERR_DROP, "model %s has no frames", mod->name);
 
//
// load base s and t vertices (not used in gl version)
//
    pinst = (dstvert_t *) ((byte *)pinmodel + pheader->ofs_st);
    poutst = (dstvert_t *) ((byte *)pheader + pheader->ofs_st);
 
    for (i=0 ; i<pheader->num_st ; i++)
    {
        poutst[i].s = LittleShort (pinst[i].s);
        poutst[i].t = LittleShort (pinst[i].t);
    }
 
//
// load triangle lists
//
    pintri = (dtriangle_t *) ((byte *)pinmodel + pheader->ofs_tris);
    pouttri = (dtriangle_t *) ((byte *)pheader + pheader->ofs_tris);
 
    for (i=0 ; i<pheader->num_tris ; i++)
    {
        for (j=0 ; j<3 ; j++)
        {
            pouttri[i].index_xyz[j] = LittleShort (pintri[i].index_xyz[j]);
            pouttri[i].index_st[j] = LittleShort (pintri[i].index_st[j]);
        }
    }
 
//
// load the frames
//
    for (i=0 ; i<pheader->num_frames ; i++)
    {
        pinframe = (daliasframe_t *) ((byte *)pinmodel 
            + pheader->ofs_frames + i * pheader->framesize);
        poutframe = (daliasframe_t *) ((byte *)pheader 
            + pheader->ofs_frames + i * pheader->framesize);
 
        memcpy (poutframe->name, pinframe->name, sizeof(poutframe->name));
        for (j=0 ; j<3 ; j++)
        {
            poutframe->scale[j] = LittleFloat (pinframe->scale[j]);
            poutframe->translate[j] = LittleFloat (pinframe->translate[j]);
        }
        // verts are all 8 bit, so no swapping needed
        memcpy (poutframe->verts, pinframe->verts, 
            pheader->num_xyz*sizeof(dtrivertx_t));
 
    }
 
    mod->type = mod_alias;
 
    //
    // load the glcmds
    //
    pincmd = (int *) ((byte *)pinmodel + pheader->ofs_glcmds);
    poutcmd = (int *) ((byte *)pheader + pheader->ofs_glcmds);
    for (i=0 ; i<pheader->num_glcmds ; i++)
        poutcmd[i] = LittleLong (pincmd[i]);
 
 
    // register all skins
    memcpy ((char *)pheader + pheader->ofs_skins, (char *)pinmodel + pheader->ofs_skins,
        pheader->num_skins*MAX_SKINNAME);
    for (i=0 ; i<pheader->num_skins ; i++)
    {
        mod->skins[i] = GL_FindImage ((char *)pheader + pheader->ofs_skins + i*MAX_SKINNAME
            , it_skin);
    }
 
    mod->mins[0] = -32;
    mod->mins[1] = -32;
    mod->mins[2] = -32;
    mod->maxs[0] = 32;
    mod->maxs[1] = 32;
    mod->maxs[2] = 32;
}

Referenced by Mod_ForName().

Mod_LoadBrushModel()

void Mod_LoadBrushModel	(	model_t *	mod,
		void *	buffer
	)

Definition at line 852 of file gl_model.c.

{
    int         i;
    dheader_t   *header;
    mmodel_t    *bm;
    
    loadmodel->type = mod_brush;
    if (loadmodel != mod_known)
        ri.Sys_Error (ERR_DROP, "Loaded a brush model after the world");
 
    header = (dheader_t *)buffer;
 
    i = LittleLong (header->version);
    if (i != BSPVERSION)
        ri.Sys_Error (ERR_DROP, "Mod_LoadBrushModel: %s has wrong version number (%i should be %i)", mod->name, i, BSPVERSION);
 
// swap all the lumps
    mod_base = (byte *)header;
 
    for (i=0 ; i<sizeof(dheader_t)/4 ; i++)
        ((int *)header)[i] = LittleLong ( ((int *)header)[i]);
 
// load into heap
    
    Mod_LoadVertexes (&header->lumps[LUMP_VERTEXES]);
    Mod_LoadEdges (&header->lumps[LUMP_EDGES]);
    Mod_LoadSurfedges (&header->lumps[LUMP_SURFEDGES]);
    Mod_LoadLighting (&header->lumps[LUMP_LIGHTING]);
    Mod_LoadPlanes (&header->lumps[LUMP_PLANES]);
    Mod_LoadTexinfo (&header->lumps[LUMP_TEXINFO]);
    Mod_LoadFaces (&header->lumps[LUMP_FACES]);
    Mod_LoadMarksurfaces (&header->lumps[LUMP_LEAFFACES]);
    Mod_LoadVisibility (&header->lumps[LUMP_VISIBILITY]);
    Mod_LoadLeafs (&header->lumps[LUMP_LEAFS]);
    Mod_LoadNodes (&header->lumps[LUMP_NODES]);
    Mod_LoadSubmodels (&header->lumps[LUMP_MODELS]);
    mod->numframes = 2;     // regular and alternate animation
    
//
// set up the submodels
//
    for (i=0 ; i<mod->numsubmodels ; i++)
    {
        model_t *starmod;
 
        bm = &mod->submodels[i];
        starmod = &mod_inline[i];
 
        *starmod = *loadmodel;
        
        starmod->firstmodelsurface = bm->firstface;
        starmod->nummodelsurfaces = bm->numfaces;
        starmod->firstnode = bm->headnode;
        if (starmod->firstnode >= loadmodel->numnodes)
            ri.Sys_Error (ERR_DROP, "Inline model %i has bad firstnode", i);
 
        VectorCopy (bm->maxs, starmod->maxs);
        VectorCopy (bm->mins, starmod->mins);
        starmod->radius = bm->radius;
    
        if (i == 0)
            *loadmodel = *starmod;
 
        starmod->numleafs = bm->visleafs;
    }
}

Referenced by Mod_ForName().

Mod_LoadEdges()

void Mod_LoadEdges

(

lump_t *

l

)

Definition at line 415 of file gl_model.c.

{
    dedge_t *in;
    medge_t *out;
    int     i, count;
 
    in = (void *)(mod_base + l->fileofs);
    if (l->filelen % sizeof(*in))
        ri.Sys_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
    count = l->filelen / sizeof(*in);
    out = Hunk_Alloc ( (count + 1) * sizeof(*out)); 
 
    loadmodel->edges = out;
    loadmodel->numedges = count;
 
    for ( i=0 ; i<count ; i++, in++, out++)
    {
        out->v[0] = (unsigned short)LittleShort(in->v[0]);
        out->v[1] = (unsigned short)LittleShort(in->v[1]);
    }
}

Referenced by Mod_LoadBrushModel().

Mod_LoadFaces()

void Mod_LoadFaces

(

lump_t *

l

)

Definition at line 558 of file gl_model.c.

{
    dface_t     *in;
    msurface_t  *out;
    int         i, count, surfnum;
    int         planenum, side;
    int         ti;
 
    in = (void *)(mod_base + l->fileofs);
    if (l->filelen % sizeof(*in))
        ri.Sys_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
    count = l->filelen / sizeof(*in);
    out = Hunk_Alloc ( count*sizeof(*out)); 
 
    loadmodel->surfaces = out;
    loadmodel->numsurfaces = count;
 
    currentmodel = loadmodel;
 
    GL_BeginBuildingLightmaps (loadmodel);
 
    for ( surfnum=0 ; surfnum<count ; surfnum++, in++, out++)
    {
        out->firstedge = LittleLong(in->firstedge);
        out->numedges = LittleShort(in->numedges);      
        out->flags = 0;
        out->polys = NULL;
 
        planenum = LittleShort(in->planenum);
        side = LittleShort(in->side);
        if (side)
            out->flags |= SURF_PLANEBACK;           
 
        out->plane = loadmodel->planes + planenum;
 
        ti = LittleShort (in->texinfo);
        if (ti < 0 || ti >= loadmodel->numtexinfo)
            ri.Sys_Error (ERR_DROP, "MOD_LoadBmodel: bad texinfo number");
        out->texinfo = loadmodel->texinfo + ti;
 
        CalcSurfaceExtents (out);
                
    // lighting info
 
        for (i=0 ; i<MAXLIGHTMAPS ; i++)
            out->styles[i] = in->styles[i];
        i = LittleLong(in->lightofs);
        if (i == -1)
            out->samples = NULL;
        else
            out->samples = loadmodel->lightdata + i;
        
    // set the drawing flags
        
        if (out->texinfo->flags & SURF_WARP)
        {
            out->flags |= SURF_DRAWTURB;
            for (i=0 ; i<2 ; i++)
            {
                out->extents[i] = 16384;
                out->texturemins[i] = -8192;
            }
            GL_SubdivideSurface (out);  // cut up polygon for warps
        }
 
        // create lightmaps and polygons
        if ( !(out->texinfo->flags & (SURF_SKY|SURF_TRANS33|SURF_TRANS66|SURF_WARP) ) )
            GL_CreateSurfaceLightmap (out);
 
        if (! (out->texinfo->flags & SURF_WARP) ) 
            GL_BuildPolygonFromSurface(out);
 
    }
 
    GL_EndBuildingLightmaps ();
}

Referenced by Mod_LoadBrushModel().

Mod_LoadLeafs()

void Mod_LoadLeafs

(

lump_t *

l

)

Definition at line 703 of file gl_model.c.

{
    dleaf_t     *in;
    mleaf_t     *out;
    int         i, j, count, p;
//  glpoly_t    *poly;
 
    in = (void *)(mod_base + l->fileofs);
    if (l->filelen % sizeof(*in))
        ri.Sys_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
    count = l->filelen / sizeof(*in);
    out = Hunk_Alloc ( count*sizeof(*out)); 
 
    loadmodel->leafs = out;
    loadmodel->numleafs = count;
 
    for ( i=0 ; i<count ; i++, in++, out++)
    {
        for (j=0 ; j<3 ; j++)
        {
            out->minmaxs[j] = LittleShort (in->mins[j]);
            out->minmaxs[3+j] = LittleShort (in->maxs[j]);
        }
 
        p = LittleLong(in->contents);
        out->contents = p;
 
        out->cluster = LittleShort(in->cluster);
        out->area = LittleShort(in->area);
 
        out->firstmarksurface = loadmodel->marksurfaces +
            LittleShort(in->firstleafface);
        out->nummarksurfaces = LittleShort(in->numleaffaces);
        
        // gl underwater warp
#if 0
        if (out->contents & (CONTENTS_WATER|CONTENTS_SLIME|CONTENTS_LAVA|CONTENTS_THINWATER) )
        {
            for (j=0 ; j<out->nummarksurfaces ; j++)
            {
                out->firstmarksurface[j]->flags |= SURF_UNDERWATER;
                for (poly = out->firstmarksurface[j]->polys ; poly ; poly=poly->next)
                    poly->flags |= SURF_UNDERWATER;
            }
        }
#endif
    }   
}

Referenced by Mod_LoadBrushModel().

Mod_LoadLighting()

void Mod_LoadLighting

(

lump_t *

l

)

Definition at line 290 of file gl_model.c.

{
    if (!l->filelen)
    {
        loadmodel->lightdata = NULL;
        return;
    }
    loadmodel->lightdata = Hunk_Alloc ( l->filelen);    
    memcpy (loadmodel->lightdata, mod_base + l->fileofs, l->filelen);
}

Referenced by Mod_LoadBrushModel().

Mod_LoadMarksurfaces()

void Mod_LoadMarksurfaces

(

lump_t *

l

)

Definition at line 757 of file gl_model.c.

{   
    int     i, j, count;
    short       *in;
    msurface_t **out;
    
    in = (void *)(mod_base + l->fileofs);
    if (l->filelen % sizeof(*in))
        ri.Sys_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
    count = l->filelen / sizeof(*in);
    out = Hunk_Alloc ( count*sizeof(*out)); 
 
    loadmodel->marksurfaces = out;
    loadmodel->nummarksurfaces = count;
 
    for ( i=0 ; i<count ; i++)
    {
        j = LittleShort(in[i]);
        if (j < 0 ||  j >= loadmodel->numsurfaces)
            ri.Sys_Error (ERR_DROP, "Mod_ParseMarksurfaces: bad surface number");
        out[i] = loadmodel->surfaces + j;
    }
}

Referenced by Mod_LoadBrushModel().

Mod_LoadModel()

model_t* Mod_LoadModel	(	model_t *	mod,
		qboolean	crash
	)

Mod_LoadNodes()

void Mod_LoadNodes

(

lump_t *

l

)

Definition at line 655 of file gl_model.c.

{
    int         i, j, count, p;
    dnode_t     *in;
    mnode_t     *out;
 
    in = (void *)(mod_base + l->fileofs);
    if (l->filelen % sizeof(*in))
        ri.Sys_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
    count = l->filelen / sizeof(*in);
    out = Hunk_Alloc ( count*sizeof(*out)); 
 
    loadmodel->nodes = out;
    loadmodel->numnodes = count;
 
    for ( i=0 ; i<count ; i++, in++, out++)
    {
        for (j=0 ; j<3 ; j++)
        {
            out->minmaxs[j] = LittleShort (in->mins[j]);
            out->minmaxs[3+j] = LittleShort (in->maxs[j]);
        }
    
        p = LittleLong(in->planenum);
        out->plane = loadmodel->planes + p;
 
        out->firstsurface = LittleShort (in->firstface);
        out->numsurfaces = LittleShort (in->numfaces);
        out->contents = -1; // differentiate from leafs
 
        for (j=0 ; j<2 ; j++)
        {
            p = LittleLong (in->children[j]);
            if (p >= 0)
                out->children[j] = loadmodel->nodes + p;
            else
                out->children[j] = (mnode_t *)(loadmodel->leafs + (-1 - p));
        }
    }
    
    Mod_SetParent (loadmodel->nodes, NULL); // sets nodes and leafs
}

Referenced by Mod_LoadBrushModel().

Mod_LoadPlanes()

void Mod_LoadPlanes

(

lump_t *

l

)

Definition at line 814 of file gl_model.c.

{
    int         i, j;
    cplane_t    *out;
    dplane_t    *in;
    int         count;
    int         bits;
    
    in = (void *)(mod_base + l->fileofs);
    if (l->filelen % sizeof(*in))
        ri.Sys_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
    count = l->filelen / sizeof(*in);
    out = Hunk_Alloc ( count*2*sizeof(*out));   
    
    loadmodel->planes = out;
    loadmodel->numplanes = count;
 
    for ( i=0 ; i<count ; i++, in++, out++)
    {
        bits = 0;
        for (j=0 ; j<3 ; j++)
        {
            out->normal[j] = LittleFloat (in->normal[j]);
            if (out->normal[j] < 0)
                bits |= 1<<j;
        }
 
        out->dist = LittleFloat (in->dist);
        out->type = LittleLong (in->type);
        out->signbits = bits;
    }
}

Referenced by Mod_LoadBrushModel().

Mod_LoadSpriteModel()

void Mod_LoadSpriteModel	(	model_t *	mod,
		void *	buffer
	)

Definition at line 1064 of file gl_model.c.

{
    dsprite_t   *sprin, *sprout;
    int         i;
 
    sprin = (dsprite_t *)buffer;
    sprout = Hunk_Alloc (modfilelen);
 
    sprout->ident = LittleLong (sprin->ident);
    sprout->version = LittleLong (sprin->version);
    sprout->numframes = LittleLong (sprin->numframes);
 
    if (sprout->version != SPRITE_VERSION)
        ri.Sys_Error (ERR_DROP, "%s has wrong version number (%i should be %i)",
                 mod->name, sprout->version, SPRITE_VERSION);
 
    if (sprout->numframes > MAX_MD2SKINS)
        ri.Sys_Error (ERR_DROP, "%s has too many frames (%i > %i)",
                 mod->name, sprout->numframes, MAX_MD2SKINS);
 
    // byte swap everything
    for (i=0 ; i<sprout->numframes ; i++)
    {
        sprout->frames[i].width = LittleLong (sprin->frames[i].width);
        sprout->frames[i].height = LittleLong (sprin->frames[i].height);
        sprout->frames[i].origin_x = LittleLong (sprin->frames[i].origin_x);
        sprout->frames[i].origin_y = LittleLong (sprin->frames[i].origin_y);
        memcpy (sprout->frames[i].name, sprin->frames[i].name, MAX_SKINNAME);
        mod->skins[i] = GL_FindImage (sprout->frames[i].name,
            it_sprite);
    }
 
    mod->type = mod_sprite;
}

Referenced by Mod_ForName().

Mod_LoadSubmodels()

void Mod_LoadSubmodels

(

lump_t *

l

)

Definition at line 380 of file gl_model.c.

{
    dmodel_t    *in;
    mmodel_t    *out;
    int         i, j, count;
 
    in = (void *)(mod_base + l->fileofs);
    if (l->filelen % sizeof(*in))
        ri.Sys_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
    count = l->filelen / sizeof(*in);
    out = Hunk_Alloc ( count*sizeof(*out)); 
 
    loadmodel->submodels = out;
    loadmodel->numsubmodels = count;
 
    for ( i=0 ; i<count ; i++, in++, out++)
    {
        for (j=0 ; j<3 ; j++)
        {   // spread the mins / maxs by a pixel
            out->mins[j] = LittleFloat (in->mins[j]) - 1;
            out->maxs[j] = LittleFloat (in->maxs[j]) + 1;
            out->origin[j] = LittleFloat (in->origin[j]);
        }
        out->radius = RadiusFromBounds (out->mins, out->maxs);
        out->headnode = LittleLong (in->headnode);
        out->firstface = LittleLong (in->firstface);
        out->numfaces = LittleLong (in->numfaces);
    }
}

Referenced by Mod_LoadBrushModel().

Mod_LoadSurfedges()

void Mod_LoadSurfedges

(

lump_t *

l

)

Definition at line 786 of file gl_model.c.

{   
    int     i, count;
    int     *in, *out;
    
    in = (void *)(mod_base + l->fileofs);
    if (l->filelen % sizeof(*in))
        ri.Sys_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
    count = l->filelen / sizeof(*in);
    if (count < 1 || count >= MAX_MAP_SURFEDGES)
        ri.Sys_Error (ERR_DROP, "MOD_LoadBmodel: bad surfedges count in %s: %i",
        loadmodel->name, count);
 
    out = Hunk_Alloc ( count*sizeof(*out)); 
 
    loadmodel->surfedges = out;
    loadmodel->numsurfedges = count;
 
    for ( i=0 ; i<count ; i++)
        out[i] = LittleLong (in[i]);
}

Referenced by Mod_LoadBrushModel().

Mod_LoadTexinfo()

void Mod_LoadTexinfo

(

lump_t *

l

)

Definition at line 442 of file gl_model.c.

{
    texinfo_t *in;
    mtexinfo_t *out, *step;
    int     i, j, count;
    char    name[MAX_QPATH];
    int     next;
 
    in = (void *)(mod_base + l->fileofs);
    if (l->filelen % sizeof(*in))
        ri.Sys_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
    count = l->filelen / sizeof(*in);
    out = Hunk_Alloc ( count*sizeof(*out)); 
 
    loadmodel->texinfo = out;
    loadmodel->numtexinfo = count;
 
    for ( i=0 ; i<count ; i++, in++, out++)
    {
        for (j=0 ; j<4 ; j++)
        {
            out->vecs[0][j] = LittleFloat (in->vecs[0][j]);
            out->vecs[1][j] = LittleFloat (in->vecs[1][j]);
        }
 
        out->flags = LittleLong (in->flags);
        next = LittleLong (in->nexttexinfo);
        if (next > 0)
            out->next = loadmodel->texinfo + next;
        else
            out->next = NULL;
        Com_sprintf (name, sizeof(name), "textures/%s.wal", in->texture);
 
        out->image = GL_FindImage (name, it_wall);
        if (!out->image)
        {
            ri.Con_Printf (PRINT_ALL, "Couldn't load %s\n", name);
            out->image = r_notexture;
        }
    }
 
    // count animation frames
    for (i=0 ; i<count ; i++)
    {
        out = &loadmodel->texinfo[i];
        out->numframes = 1;
        for (step = out->next ; step && step != out ; step=step->next)
            out->numframes++;
    }
}

Referenced by Mod_LoadBrushModel().

Mod_LoadVertexes()

void Mod_LoadVertexes

(

lump_t *

l

)

Definition at line 333 of file gl_model.c.

{
    dvertex_t   *in;
    mvertex_t   *out;
    int         i, count;
 
    in = (void *)(mod_base + l->fileofs);
    if (l->filelen % sizeof(*in))
        ri.Sys_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
    count = l->filelen / sizeof(*in);
    out = Hunk_Alloc ( count*sizeof(*out)); 
 
    loadmodel->vertexes = out;
    loadmodel->numvertexes = count;
 
    for ( i=0 ; i<count ; i++, in++, out++)
    {
        out->position[0] = LittleFloat (in->point[0]);
        out->position[1] = LittleFloat (in->point[1]);
        out->position[2] = LittleFloat (in->point[2]);
    }
}

Referenced by Mod_LoadBrushModel().

Mod_LoadVisibility()

void Mod_LoadVisibility

(

lump_t *

l

)

Definition at line 307 of file gl_model.c.

{
    int     i;
 
    if (!l->filelen)
    {
        loadmodel->vis = NULL;
        return;
    }
    loadmodel->vis = Hunk_Alloc ( l->filelen);  
    memcpy (loadmodel->vis, mod_base + l->fileofs, l->filelen);
 
    loadmodel->vis->numclusters = LittleLong (loadmodel->vis->numclusters);
    for (i=0 ; i<loadmodel->vis->numclusters ; i++)
    {
        loadmodel->vis->bitofs[i][0] = LittleLong (loadmodel->vis->bitofs[i][0]);
        loadmodel->vis->bitofs[i][1] = LittleLong (loadmodel->vis->bitofs[i][1]);
    }
}

Referenced by Mod_LoadBrushModel().

Mod_Modellist_f()

void Mod_Modellist_f

(

void

)

Definition at line 140 of file gl_model.c.

{
    int     i;
    model_t *mod;
    int     total;
 
    total = 0;
    ri.Con_Printf (PRINT_ALL,"Loaded models:\n");
    for (i=0, mod=mod_known ; i < mod_numknown ; i++, mod++)
    {
        if (!mod->name[0])
            continue;
        ri.Con_Printf (PRINT_ALL, "%8i : %s\n",mod->extradatasize, mod->name);
        total += mod->extradatasize;
    }
    ri.Con_Printf (PRINT_ALL, "Total resident: %i\n", total);
}

Mod_PointInLeaf()

mleaf_t* Mod_PointInLeaf	(	vec3_t	p,
		model_t *	model
	)

Definition at line 48 of file gl_model.c.

{
    mnode_t     *node;
    float       d;
    cplane_t    *plane;
    
    if (!model || !model->nodes)
        ri.Sys_Error (ERR_DROP, "Mod_PointInLeaf: bad model");
 
    node = model->nodes;
    while (1)
    {
        if (node->contents != -1)
            return (mleaf_t *)node;
        plane = node->plane;
        d = DotProduct (p,plane->normal) - plane->dist;
        if (d > 0)
            node = node->children[0];
        else
            node = node->children[1];
    }
    
    return NULL;    // never reached
}

Mod_SetParent()

void Mod_SetParent	(	mnode_t *	node,
		mnode_t *	parent
	)

Definition at line 641 of file gl_model.c.

{
    node->parent = parent;
    if (node->contents != -1)
        return;
    Mod_SetParent (node->children[0], node);
    Mod_SetParent (node->children[1], node);
}

Referenced by Mod_LoadNodes().

R_BeginRegistration()

void R_BeginRegistration

(

char *

model

)

Definition at line 1108 of file gl_model.c.

{
    char    fullname[MAX_QPATH];
    cvar_t  *flushmap;
 
    registration_sequence++;
    r_oldviewcluster = -1;      // force markleafs
 
    Com_sprintf (fullname, sizeof(fullname), "maps/%s.bsp", model);
 
    // explicitly free the old map if different
    // this guarantees that mod_known[0] is the world map
    flushmap = ri.Cvar_Get ("flushmap", "0", 0);
    if ( strcmp(mod_known[0].name, fullname) || flushmap->value)
        Mod_Free (&mod_known[0]);
    r_worldmodel = Mod_ForName(fullname, true);
 
    r_viewcluster = -1;
}

R_EndRegistration()

void R_EndRegistration

(

void

)

Definition at line 1179 of file gl_model.c.

{
    int     i;
    model_t *mod;
 
    for (i=0, mod=mod_known ; i<mod_numknown ; i++, mod++)
    {
        if (!mod->name[0])
            continue;
        if (mod->registration_sequence != registration_sequence)
        {   // don't need this model
            Mod_Free (mod);
        }
    }
 
    GL_FreeUnusedImages ();
}

R_RegisterModel()

struct model_s* R_RegisterModel

(

char *

name

)

Definition at line 1135 of file gl_model.c.

{
    model_t *mod;
    int     i;
    dsprite_t   *sprout;
    dmdl_t      *pheader;
 
    mod = Mod_ForName (name, false);
    if (mod)
    {
        mod->registration_sequence = registration_sequence;
 
        // register any images used by the models
        if (mod->type == mod_sprite)
        {
            sprout = (dsprite_t *)mod->extradata;
            for (i=0 ; i<sprout->numframes ; i++)
                mod->skins[i] = GL_FindImage (sprout->frames[i].name, it_sprite);
        }
        else if (mod->type == mod_alias)
        {
            pheader = (dmdl_t *)mod->extradata;
            for (i=0 ; i<pheader->num_skins ; i++)
                mod->skins[i] = GL_FindImage ((char *)pheader + pheader->ofs_skins + i*MAX_SKINNAME, it_skin);
//PGM
            mod->numframes = pheader->num_frames;
//PGM
        }
        else if (mod->type == mod_brush)
        {
            for (i=0 ; i<mod->numtexinfo ; i++)
                mod->texinfo[i].image->registration_sequence = registration_sequence;
        }
    }
    return mod;
}

RadiusFromBounds()

float RadiusFromBounds	(	vec3_t	mins,
		vec3_t	maxs
	)

Definition at line 361 of file gl_model.c.

{
    int     i;
    vec3_t  corner;
 
    for (i=0 ; i<3 ; i++)
    {
        corner[i] = fabs(mins[i]) > fabs(maxs[i]) ? fabs(mins[i]) : fabs(maxs[i]);
    }
 
    return VectorLength (corner);
}

Referenced by Mod_LoadSubmodels().

Variable Documentation

loadmodel

model_t* loadmodel

Definition at line 24 of file gl_model.c.

Referenced by CalcSurfaceExtents(), Mod_ForName(), Mod_LoadBrushModel(), Mod_LoadEdges(), Mod_LoadFaces(), Mod_LoadLeafs(), Mod_LoadLighting(), Mod_LoadMarksurfaces(), Mod_LoadNodes(), Mod_LoadPlanes(), Mod_LoadSubmodels(), Mod_LoadSurfedges(), Mod_LoadTexinfo(), Mod_LoadVertexes(), and Mod_LoadVisibility().

mod_base

byte* mod_base

Definition at line 282 of file gl_model.c.

Referenced by Mod_LoadBrushModel(), Mod_LoadEdges(), Mod_LoadFaces(), Mod_LoadLeafs(), Mod_LoadLighting(), Mod_LoadMarksurfaces(), Mod_LoadNodes(), Mod_LoadPlanes(), Mod_LoadSubmodels(), Mod_LoadSurfedges(), Mod_LoadTexinfo(), Mod_LoadVertexes(), and Mod_LoadVisibility().

mod_inline

model_t mod_inline[MAX_MOD_KNOWN]

Definition at line 39 of file gl_model.c.

Referenced by Mod_ForName(), and Mod_LoadBrushModel().

mod_known

model_t mod_known[MAX_MOD_KNOWN]

Definition at line 35 of file gl_model.c.

Referenced by Mod_ForName(), Mod_FreeAll(), Mod_LoadBrushModel(), Mod_Modellist_f(), R_BeginRegistration(), and R_EndRegistration().

mod_novis

byte mod_novis[MAX_MAP_LEAFS/8]

Definition at line 32 of file gl_model.c.

Referenced by Mod_ClusterPVS(), and Mod_Init().

mod_numknown

int mod_numknown

Definition at line 36 of file gl_model.c.

Referenced by Mod_ForName(), Mod_FreeAll(), Mod_Modellist_f(), and R_EndRegistration().

modfilelen

int modfilelen

Definition at line 25 of file gl_model.c.

Referenced by Mod_ForName(), and Mod_LoadSpriteModel().

registration_sequence

int registration_sequence

Definition at line 41 of file gl_model.c.

Referenced by R_BeginRegistration(), R_EndRegistration(), and R_RegisterModel().