gl_model.c

/*
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.

*/
// gl_model.c -- model loading and caching

// models are the only shared resource between a client and server running
// on the same machine.

#include "quakedef.h"

model_t	*loadmodel;
char	loadname[32];	// for hunk tags

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);

static byte	*mod_novis;
static int	mod_novis_capacity;

static byte	*mod_decompressed;
static int	mod_decompressed_capacity;

#define	MAX_MOD_KNOWN	2048 // was 512
model_t	mod_known[MAX_MOD_KNOWN];
int		mod_numknown;

cvar_t	external_lit = {"external_lit","1"};
cvar_t	external_vis = {"external_vis","1"};
cvar_t	external_ent = {"external_ent","1"};

/*
===============
Mod_External
===============
*/
void Mod_External (void)
{
	Con_Printf ("external resources change takes effect on map restart/change.\n");
}

/*
===============
Mod_Init
===============
*/
void Mod_Init (void)
{
	Cvar_RegisterVariable (&external_lit, Mod_External);
	Cvar_RegisterVariable (&external_vis, Mod_External);
	Cvar_RegisterVariable (&external_ent, Mod_External);
}

/*
===============
Mod_Extradata

Caches the data if needed
===============
*/
void *Mod_Extradata (model_t *mod)
{
	void	*r;
	
	r = Cache_Check (&mod->cache);
	if (r)
		return r;

	Mod_LoadModel (mod, true);
	
	if (!mod->cache.data)
		Host_Error ("Mod_Extradata: caching failed, model %s", mod->name);
	return mod->cache.data;
}

/*
===============
Mod_PointInLeaf
===============
*/
mleaf_t *Mod_PointInLeaf (vec3_t p, model_t *model)
{
	mnode_t		*node;
	float		d;
	mplane_t	*plane;
	
	if (!model || !model->nodes)
		Host_Error ("Mod_PointInLeaf: bad model");

	node = model->nodes;
	while (1)
	{
		if (node->contents < 0)
			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_DecompressVis
===================
*/
byte *Mod_DecompressVis (byte *in, model_t *model)
{
	int		c;
	byte	*out;
	byte	*outend;
	int		row;

	row = (model->numleafs+7)>>3;
	if (mod_decompressed == NULL || row > mod_decompressed_capacity)
	{
		mod_decompressed_capacity = row;
		mod_decompressed = (byte *) realloc (mod_decompressed, mod_decompressed_capacity);
		if (!mod_decompressed)
			Host_Error ("Mod_DecompressVis: realloc() failed on %d bytes", mod_decompressed_capacity);
	}
	out = mod_decompressed;
	outend = mod_decompressed + row;

	if (!in || r_novis.value == 2)
	{	// no vis info, so make all visible
		while (row)
		{
			*out++ = 0xff;
			row--;
		}
		return mod_decompressed;
	}

	do
	{
		if (*in)
		{
			*out++ = *in++;
			continue;
		}
	
		c = in[1];
		in += 2;
		while (c)
		{
			if (out == outend)
			{
				if(!model->viswarn) {
					model->viswarn = true;
					Con_Warning("Mod_DecompressVis: output overrun on model \"%s\"\n", model->name);
				}
				return mod_decompressed;
			}
			*out++ = 0;
			c--;
		}
	} while (out - mod_decompressed < row);
	
	return mod_decompressed;
}

/*
=================
Mod_LeafPVS
=================
*/
byte *Mod_LeafPVS (mleaf_t *leaf, model_t *model)
{
	if (leaf == model->leafs)
        return Mod_NoVisPVS (model);
	return Mod_DecompressVis (leaf->compressed_vis, model);
}

/*
=================
Mod_NoVisPVS
=================
*/
byte *Mod_NoVisPVS (model_t *model)
{
	int pvsbytes;
    
	pvsbytes = (model->numleafs+7)>>3;
	if (mod_novis == NULL || pvsbytes > mod_novis_capacity)
	{
		mod_novis_capacity = pvsbytes;
		mod_novis = (byte *) realloc (mod_novis, mod_novis_capacity);
		if (!mod_novis)
			Host_Error ("Mod_NoVisPVS: realloc() failed on %d bytes", mod_novis_capacity);
		
		memset(mod_novis, 0xff, mod_novis_capacity);
	}
	return mod_novis;
}

/*
===================
Mod_ClearAll
===================
*/
void Mod_ClearAll (void)
{
	int		i;
	model_t	*mod;

	for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++)
	{
		if (mod->type != mod_alias)
		{
			mod->needload = true;
			GL_FreeTextures (mod);
		}
	}
}

/*
==================
Mod_FindName

==================
*/
model_t *Mod_FindName (char *name)
{
	int		i;
	model_t	*mod;
	
	if (!name[0])
		Host_Error ("Mod_FindName: NULL name");
		
//
// search the currently loaded models
//
	for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++)
		if (!strcmp (mod->name, name) )
			break;

	if (i == mod_numknown)
	{
		if (mod_numknown == MAX_MOD_KNOWN)
			Host_Error ("Mod_FindName: mod_numknown == MAX_MOD_KNOWN (%d)", MAX_MOD_KNOWN);

		strcpy (mod->name, name);
		mod->needload = true;
		mod_numknown++;
	}

	return mod;
}

/*
==================
Mod_TouchModel

==================
*/
void Mod_TouchModel (char *name)
{
	model_t	*mod;
	
	mod = Mod_FindName (name);

	if (!mod->needload)
	{
		if (mod->type == mod_alias)
			Cache_Check (&mod->cache);
	}
}

/*
==================
Mod_LoadModel

Loads a model into the cache
==================
*/
model_t *Mod_LoadModel (model_t *mod, qboolean crash)
{
	void	*d;
	unsigned *buf;
	byte	stackbuf[1024];		// avoid dirtying the cache heap

	if (!mod->needload)
	{
		if (mod->type == mod_alias)
		{
			d = Cache_Check (&mod->cache);
			if (d)
				return mod;
		}
		else
			return mod;		// not cached at all
	}

//
// because the world is so huge, load it one piece at a time
//
	if (!crash)
	{

	}

//
// load the file
//
	buf = (unsigned *)COM_LoadStackFile (mod->name, stackbuf, sizeof(stackbuf), &mod->path_id);
	if (!buf)
	{
		if (crash)
			Host_Error ("Mod_LoadModel: %s not found", mod->name);
		return NULL;
	}

//
// allocate a new model
//
	COM_FileBase (mod->name, loadname);

	loadmodel = mod;

//
// fill it in
//

// call the apropriate loader
	mod->needload = false;
	
	switch (LittleLong(*(unsigned *)buf))
	{
	case IDPOLYHEADER:
		Mod_LoadAliasModel (mod, buf);
		break;
		
	case IDSPRITEHEADER:
		Mod_LoadSpriteModel (mod, buf);
		break;
	
	default:
		Mod_LoadBrushModel (mod, buf);
		break;
	}

	return mod;
}

/*
==================
Mod_ForName

Loads in a model for the given name
==================
*/
model_t *Mod_ForName (char *name, qboolean crash)
{
	model_t	*mod;
	
	mod = Mod_FindName (name);
	
	return Mod_LoadModel (mod, crash);
}


/*
===============================================================================

					BRUSHMODEL LOADING

===============================================================================
*/

static int missingtex;
byte	*mod_base = NULL; // set to null

/*
==================
IsFullbright
==================
*/
qboolean IsFullbright (byte *pixels, int size)
{
	int	i;

	for (i=0 ; i<size ; i++)
		if (pixels[i] > 223)
			return true;

	return false;
} 

/*
=================
Mod_LoadTextures
=================
*/
void Mod_LoadTextures (lump_t *l)
{
	int		i, j, pixels, num, maxanim, altmax;
	miptex_t	*mt;
	texture_t	*tx, *tx2;
	texture_t	*anims[10];
	texture_t	*altanims[10];
	dmiptexlump_t *m;
	char		texturename[64];
	char		texname[16 + 1];
	int			nummiptex;
	unsigned	offset;
	int			mark;

	//johnfitz -- don't return early if no textures; still need to create dummy texture
	if (!l->filelen)
	{
		Con_Warning ("Mod_LoadTextures: no textures in bsp file %s\n", loadmodel->name);

		m = NULL; // keep compiler happy
		nummiptex = 0;
	}
	else
	{
		m = (dmiptexlump_t *)(mod_base + l->fileofs);
		m->nummiptex = LittleLong (m->nummiptex);
		nummiptex = m->nummiptex;
	}

	loadmodel->numtextures = nummiptex + 2; // need 2 dummy texture chains for missing textures
	loadmodel->textures = Hunk_AllocName (loadmodel->numtextures * sizeof(*loadmodel->textures) , loadname);

	missingtex = 0;
	for (i=0 ; i<nummiptex ; i++)
	{
		m->dataofs[i] = LittleLong (m->dataofs[i]);
		if (m->dataofs[i] == -1)
		{
			++missingtex;
			continue;
		}
		mt = (miptex_t *)((byte *)m + m->dataofs[i]);
		mt->width = LittleLong (mt->width);
		mt->height = LittleLong (mt->height);
		for (j=0 ; j<MIPLEVELS ; j++)
			mt->offsets[j] = LittleLong (mt->offsets[j]);

		// make sure texname is terminated
		memset (texname, 0, sizeof(texname));
		memcpy (texname, mt->name, sizeof(texname) - 1);
		if (!texname[0]) // check if missing texname
		{
			sprintf (texname, "unnamed%d", i);
			Con_Warning ("Mod_LoadTextures: unnamed texture in %s, renaming to %s\n", loadmodel->name, texname);
		}

		if ( (mt->width & 15) || (mt->height & 15) )
			Host_Error ("Mod_LoadTextures: texture '%s' is not 16 aligned (%dx%d) in %s", texname, mt->width, mt->height, loadmodel->name);

		pixels = mt->width*mt->height/64*85;
		tx = Hunk_AllocName (sizeof(texture_t) +pixels, loadname );
		loadmodel->textures[i] = tx;

		strcpy (tx->name, texname);
		tx->width = mt->width;
		tx->height = mt->height;
		for (j=0 ; j<MIPLEVELS ; j++)
			tx->offsets[j] = mt->offsets[j] + sizeof(texture_t) - sizeof(miptex_t);
		// the pixels immediately follow the structures
		memcpy ( tx+1, mt+1, pixels);

		tx->update_warp = false;
		tx->warpimage = NULL;
		tx->fullbright = NULL;

		if (cls.state != ca_dedicated) // no texture uploading for dedicated server
		{
			if (!strncasecmp(tx->name, "sky", 3)) // sky texture (also note: was strncmp, changed to match qbsp)
			{
				R_InitSky (tx);
			}
			else if (tx->name[0] == '*') // warping texture
			{
				mark = Hunk_LowMark ();

				sprintf (texturename, "%s:%s", loadmodel->name, tx->name);
				offset = (unsigned)(mt+1) - (unsigned)mod_base;
				tx->gltexture = GL_LoadTexture (loadmodel, texturename, tx->width, tx->height, SRC_INDEXED, (byte *)(tx+1), loadmodel->name, offset, TEXPREF_WARP);

				//now create the warpimage, using dummy data from the hunk to create the initial image
				Hunk_Alloc (gl_warpimage_size*gl_warpimage_size*4); //make sure hunk is big enough so we don't reach an illegal address
				
				Hunk_FreeToLowMark (mark);
				
				sprintf (texturename, "%s_warp", texturename);
				tx->warpimage = GL_LoadTexture (loadmodel, texturename, gl_warpimage_size, gl_warpimage_size, SRC_RGBA, hunk_base, "", (unsigned)hunk_base, TEXPREF_NOPICMIP | TEXPREF_WARPIMAGE);
				tx->update_warp = true;
			}
			else // regular texture
			{
				int	extraflags = TEXPREF_NONE;
				
				mark = Hunk_LowMark ();
				
				if (tx->name[0] == '{') // fence texture
					extraflags |= TEXPREF_ALPHA;

				offset = (unsigned)(mt+1) - (unsigned)mod_base;
				if (IsFullbright ((byte *)(tx+1), pixels))
				{
					sprintf (texturename, "%s:%s", loadmodel->name, tx->name);
					tx->gltexture = GL_LoadTexture (loadmodel, texturename, tx->width, tx->height, SRC_INDEXED, (byte *)(tx+1), loadmodel->name, offset, TEXPREF_MIPMAP | TEXPREF_NOBRIGHT | extraflags);
					sprintf (texturename, "%s:%s_glow", loadmodel->name, tx->name);
					tx->fullbright = GL_LoadTexture (loadmodel, texturename, tx->width, tx->height, SRC_INDEXED, (byte *)(tx+1), loadmodel->name, offset, TEXPREF_MIPMAP | TEXPREF_FULLBRIGHT | extraflags);
				}
				else
				{
					sprintf (texturename, "%s:%s", loadmodel->name, tx->name);
					tx->gltexture = GL_LoadTexture (loadmodel, texturename, tx->width, tx->height, SRC_INDEXED, (byte *)(tx+1), loadmodel->name, offset, TEXPREF_MIPMAP | extraflags);
				}
				
				Hunk_FreeToLowMark (mark);
			}
		}
	}

	// last 2 slots in array should be filled with dummy textures
	loadmodel->textures[loadmodel->numtextures-2] = notexture_mip; // for lightmapped surfs
	loadmodel->textures[loadmodel->numtextures-1] = notexture_mip2; // for SURF_DRAWTILED surfs

//
// sequence the animations
//
	for (i=0 ; i<nummiptex ; i++)
	{
		tx = loadmodel->textures[i];
		if (!tx || tx->name[0] != '+')
			continue;
		if (tx->anim_next)
			continue;	// already sequenced

	// find the number of frames in the animation
		memset (anims, 0, sizeof(anims));
		memset (altanims, 0, sizeof(altanims));

		maxanim = tx->name[1];
		altmax = 0;
		if (maxanim >= 'a' && maxanim <= 'z')
			maxanim -= 'a' - 'A';
		if (maxanim >= '0' && maxanim <= '9')
		{
			maxanim -= '0';
			altmax = 0;
			anims[maxanim] = tx;
			maxanim++;
		}
		else if (maxanim >= 'A' && maxanim <= 'J')
		{
			altmax = maxanim - 'A';
			maxanim = 0;
			altanims[altmax] = tx;
			altmax++;
		}
		else
			Host_Error ("Mod_LoadTextures: Bad animating texture '%s'", tx->name);

		for (j=i+1 ; j<nummiptex ; j++)
		{
			tx2 = loadmodel->textures[j];
			if (!tx2 || tx2->name[0] != '+')
				continue;
			if (strcmp (tx2->name+2, tx->name+2))
				continue;

			num = tx2->name[1];
			if (num >= 'a' && num <= 'z')
				num -= 'a' - 'A';
			if (num >= '0' && num <= '9')
			{
				num -= '0';
				anims[num] = tx2;
				if (num+1 > maxanim)
					maxanim = num + 1;
			}
			else if (num >= 'A' && num <= 'J')
			{
				num = num - 'A';
				altanims[num] = tx2;
				if (num+1 > altmax)
					altmax = num+1;
			}
			else
				Host_Error ("Mod_LoadTextures: Bad animating texture '%s'", tx->name);
		}
		
#define	ANIM_CYCLE	2
	// link them all together
		for (j=0 ; j<maxanim ; j++)
		{
			tx2 = anims[j];
			if (!tx2)
				Host_Error ("Missing frame %i of %s",j, tx->name);
			tx2->anim_total = maxanim * ANIM_CYCLE;
			tx2->anim_min = j * ANIM_CYCLE;
			tx2->anim_max = (j+1) * ANIM_CYCLE;
			tx2->anim_next = anims[ (j+1)%maxanim ];
			if (altmax)
				tx2->alternate_anims = altanims[0];
		}
		for (j=0 ; j<altmax ; j++)
		{
			tx2 = altanims[j];
			if (!tx2)
				Host_Error ("Missing frame %i of %s",j, tx->name);
			tx2->anim_total = altmax * ANIM_CYCLE;
			tx2->anim_min = j * ANIM_CYCLE;
			tx2->anim_max = (j+1) * ANIM_CYCLE;
			tx2->anim_next = altanims[ (j+1)%altmax ];
			if (maxanim)
				tx2->alternate_anims = anims[0];
		}
	}
}

/*
=================
Mod_LoadLighting

replaced with lit support code via lordhavoc
=================
*/
void Mod_LoadLighting (lump_t *l)
{
	// LordHavoc: .lit support
	int i;
	int mark;
	byte *in, *out, *data;
	byte d;
	char litfilename[MAX_QPATH];
	unsigned int path_id;

	loadmodel->lightdata = NULL;

	if (loadmodel->isworldmodel && external_lit.value)
	{
		// LordHavoc: check for a .lit file
		strcpy(litfilename, loadmodel->name);
		COM_StripExtension(litfilename, litfilename);
		strcat(litfilename, ".lit");
		Con_DPrintf("trying to load %s\n", litfilename);

		mark = Hunk_LowMark ();
		
		data = (byte *) COM_LoadHunkFile (litfilename, &path_id);
		if (data)
		{
			// use .lit file only from the same gamedir as the map
			// itself or from a searchpath with higher priority.
			if (path_id < loadmodel->path_id)
			{
				Con_DPrintf("Ignored %s from a gamedir with lower priority\n", litfilename);
			}
			else if (data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
			{
				i = LittleLong(((int *)data)[1]);
				if (i == 1)
				{
					Con_DPrintf("%s loaded\n", litfilename);
					loadmodel->lightdata = data + 8;
					return;
				}
				else
					Con_DPrintf("Unknown .lit file version (%d)\n", i);
			}
			else
				Con_DPrintf("Corrupt .lit file (old version?), ignoring\n");
			
			Hunk_FreeToLowMark (mark);
		}
	}

	// LordHavoc: no .lit found, expand the white lighting data to color
	if (!l->filelen)
	{
		return;
	}
	loadmodel->lightdata = Hunk_AllocName ( l->filelen*3, litfilename);
	in = loadmodel->lightdata + l->filelen*2; // place the file at the end, so it will not be overwritten until the very last write
	out = loadmodel->lightdata;
	memcpy (in, mod_base + l->fileofs, l->filelen);
	for (i = 0;i < l->filelen;i++)
	{
		d = *in++;
		*out++ = d;
		*out++ = d;
		*out++ = d;
	}
} 

// store external leaf data
void 	*extleafdata;
int 	extleaflen;

/*
=================
Mod_LoadVisibility

external .vis support via Maddes
=================
*/
void Mod_LoadVisibility (lump_t *l)
{
	// EER1: .vis support
	FILE	*f;
	int		filelen;
	char	visfilename[MAX_QPATH];
	char	loadmapname[MAX_QPATH];
	vispatch_t	vispatch;
	unsigned int path_id;

	loadmodel->viswarn = false;
	loadmodel->visdata = NULL;

	extleafdata = NULL;
	extleaflen = 0;

	if (loadmodel->isworldmodel && external_vis.value)
	{
		// EER1: check for a .vis file
		strcpy(visfilename, loadmodel->name);
		COM_StripExtension(visfilename, visfilename);
		strcat(visfilename, ".vis");
		Con_DPrintf("trying to load %s\n", visfilename);

		filelen = COM_FOpenFile (visfilename, &f, &path_id);
		if (f)
		{
			// use .vis file only from the same gamedir as the map
			// itself or from a searchpath with higher priority.
			if (path_id < loadmodel->path_id)
			{
				Con_DPrintf("Ignored %s from a gamedir with lower priority\n", visfilename);
			}
			else if (filelen)
			{
				int		hlen;
				qboolean match = false;

				// reading header
				hlen = fread (&vispatch.mapname, 1, VISPATCH_MAPNAME_IDLEN, f);
				if (hlen == VISPATCH_MAPNAME_IDLEN)
				{
					strcpy(loadmapname, loadname);
					strcat(loadmapname, ".bsp");
					if (!strcasecmp (vispatch.mapname, loadmapname)) // match
					{
						match = true;
						hlen += fread (&vispatch.datalen, 1, sizeof(int), f);
					}
				}

				if (match && hlen == VISPATCH_HEADER_LEN)
				{
					char	load[32];

					Con_DPrintf ("Loaded external visibility file %s\n", visfilename);
					vispatch.datalen = LittleLong(vispatch.datalen);
					Con_DPrintf ("vispatch file data lenght %i bytes\n", vispatch.datalen);

					// get visibility data length
					fread (&vispatch.vislen, 1, sizeof(int), f);
					vispatch.vislen = LittleLong(vispatch.vislen);
					Con_DPrintf ("...%i bytes visibility data\n", vispatch.vislen);
					// load visibility data
					if (!vispatch.vislen)
					{
						goto standard;
					}
					strcpy(load, loadname);
					strcat(load, ":vis");
					loadmodel->visdata = Hunk_AllocName (vispatch.vislen, load);
					fread (loadmodel->visdata, 1, vispatch.vislen, f);

					// get leaf data length
					fread (&vispatch.leaflen, 1, sizeof(int), f);
					vispatch.leaflen = LittleLong(vispatch.leaflen);
					Con_DPrintf("...%i bytes leaf data\n", vispatch.leaflen);
					// load leaf data
					if (!vispatch.leaflen)
					{
						loadmodel->visdata = NULL;
						goto standard;
					}
					strcpy(load, loadname);
					strcat(load, ":leaf");
					extleafdata = Hunk_AllocName (vispatch.leaflen, load);
					fread (extleafdata, 1, vispatch.leaflen, f);
					extleaflen = vispatch.leaflen;

					fclose  (f);
					return;
				}
				else if (!match && hlen == VISPATCH_MAPNAME_IDLEN)
					Con_DPrintf ("Not match .vis file header mapname (%s should be %s)\n", vispatch.mapname, loadmapname);
				else
					Con_DPrintf ("Wrong .vis file header lenght (%d should be %d)\n", hlen, VISPATCH_HEADER_LEN);
			}
			else
				Con_DPrintf ("Ignoring invalid .vis file. Doing standard vis.\n");
standard:
			fclose (f);
		}
	}

	if (!l->filelen)
	{
		return;
	}
	loadmodel->visdata = Hunk_AllocName ( l->filelen, loadname);
	memcpy (loadmodel->visdata, mod_base + l->fileofs, l->filelen);
}


/*
=================
Mod_LoadEntities

external .ent support from QuakeSpasm
=================
*/
void Mod_LoadEntities (lump_t *l)
{
	// QS: .ent support
	int		mark;
	char	entfilename[MAX_QPATH];
	char	*ents;
	unsigned int	path_id;

	loadmodel->entities = NULL;

	if (loadmodel->isworldmodel && external_ent.value)
	{
		// QS: check for a .ent file
		strcpy(entfilename, loadmodel->name);
		COM_StripExtension(entfilename, entfilename);
		strcat(entfilename, ".ent");
		Con_DPrintf("trying to load %s\n", entfilename);

		mark = Hunk_LowMark ();
		
		ents = (char *) COM_LoadHunkFile (entfilename, &path_id);
		if (ents)
		{
			// use .ent file only from the same gamedir as the map
			// itself or from a searchpath with higher priority.
			if (path_id < loadmodel->path_id)
			{
				Con_DPrintf("Ignored %s from a gamedir with lower priority\n", entfilename);
			}
			else
			{
				loadmodel->entities = ents;
				Con_DPrintf("Loaded external entity file %s\n", entfilename);
				return;
			}
			
			Hunk_FreeToLowMark (mark);
		}
	}

	if (!l->filelen)
	{
		return;
	}
	loadmodel->entities = Hunk_AllocName ( l->filelen, loadname);
	memcpy (loadmodel->entities, mod_base + l->fileofs, l->filelen);
}


/*
=================
Mod_LoadVertexes
=================
*/
void Mod_LoadVertexes (lump_t *l)
{
	dvertex_t	*in;
	mvertex_t	*out;
	int		i, count;

	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadVertexes: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > 65535) // old limit warning
		Con_DWarning ("Mod_LoadVertexes: vertexes exceeds standard limit (%d, normal max = %d) in %s\n", count, 65535, loadmodel->name);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	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]);
	}
}

/*
=================
Mod_LoadSubmodels
=================
*/
void Mod_LoadSubmodels (lump_t *l)
{
	dmodel_t	*in;
	dmodel_t	*out;
	int		i, j, count;

	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadSubmodels: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > 256) // old limit warning
		Con_DWarning ("Mod_LoadSubmodels: models exceeds standard limit (%d, normal max = %d) in %s\n", count, 256, loadmodel->name);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	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]);
		}
		for (j=0 ; j<MAX_MAP_HULLS ; j++)
			out->headnode[j] = LittleLong (in->headnode[j]);
		out->visleafs = LittleLong (in->visleafs);
		out->firstface = LittleLong (in->firstface);
		out->numfaces = LittleLong (in->numfaces);
	}

	// check world visleafs
	out = loadmodel->submodels;

	if (out->visleafs > 8192) // old limit warning
		Con_DWarning ("Mod_LoadSubmodels: visleafs exceeds standard limit (%d, normal max = %d) in %s\n", out->visleafs, 8192, loadmodel->name);
}

/*
=================
Mod_LoadEdges_S

short version
=================
*/
void Mod_LoadEdges_S (lump_t *l)
{
	dedge_s_t *in;
	medge_t *out;
	int 	i, count;

	in = (dedge_s_t *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadEdges_S: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	out = Hunk_AllocName (count * sizeof(*out), loadname);

	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]);
	}
}

/*
=================
Mod_LoadEdges_L

long version (bsp2)
=================
*/
void Mod_LoadEdges_L (lump_t *l)
{
	dedge_l_t *in;
	medge_t *out;
	int 	i, count;

	in = (dedge_l_t *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadEdges_L: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	out = Hunk_AllocName (count * sizeof(*out), loadname);

	loadmodel->edges = out;
	loadmodel->numedges = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		out->v[0] = LittleLong(in->v[0]);
		out->v[1] = LittleLong(in->v[1]);
	}
}

/*
=================
Mod_LoadEdges
=================
*/
void Mod_LoadEdges (lump_t *l, int bsp2)
{
	if (bsp2)
		Mod_LoadEdges_L (l);
	else
		Mod_LoadEdges_S (l);
}

/*
=================
Mod_LoadTexinfo
=================
*/
void Mod_LoadTexinfo (lump_t *l)
{
	texinfo_t *in;
	mtexinfo_t *out;
	int 	i, j, count, miptex;
	float	len1, len2;

	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadTexinfo: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > 32767) // old limit warning
		Con_DWarning ("Mod_LoadTexinfo: texinfo exceeds standard limit (%d, normal max = %d) in %s\n", count, 32767, loadmodel->name);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	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]);
		}
		len1 = VectorLength (out->vecs[0]);
		len2 = VectorLength (out->vecs[1]);
		len1 = (len1 + len2)/2;
		if (len1 < 0.32)
			out->mipadjust = 4;
		else if (len1 < 0.49)
			out->mipadjust = 3;
		else if (len1 < 0.99)
			out->mipadjust = 2;
		else
			out->mipadjust = 1;

		miptex = LittleLong (in->miptex);
		out->flags = LittleLong (in->flags);

		if (miptex >= loadmodel->numtextures-1 || !loadmodel->textures[miptex])
		{
			if (out->flags & TEX_SPECIAL)
				out->texture = loadmodel->textures[loadmodel->numtextures-1]; // checkerboard texture (texture not found)
			else
				out->texture = loadmodel->textures[loadmodel->numtextures-2]; // checkerboard texture (texture not found)
			out->flags |= TEX_MISSING;
		}
		else
		{
			out->texture = loadmodel->textures[miptex];
		}
	}

	if (missingtex > 0)
		Con_Warning ("Mod_LoadTexinfo: %d texture%s missing in %s\n", missingtex, missingtex == 1 ? " is" : "s are", loadmodel->name);
}


/*
================
Mod_CalcSurfaceExtents

Fills in s->texturemins[] and s->extents[]
================
*/
#define MAX_SURF_EXTENTS 2048 // was 512 in glquake, 256 in winquake, fitzquake has 2000
void Mod_CalcSurfaceExtents (msurface_t *s)
{
	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] = -999999;

	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++)
		{
			/* The following calculation is sensitive to floating-point
			 * precision.  It needs to produce the same result that the
			 * light compiler does, because R_BuildLightMap uses surf->
			 * extents to know the width/height of a surface's lightmap,
			 * and incorrect rounding here manifests itself as patches
			 * of "corrupted" looking lightmaps.
			 * Most light compilers are win32 executables, so they use
			 * x87 floating point.  This means the multiplies and adds
			 * are done at 80-bit precision, and the result is rounded
			 * down to 32-bits and stored in val.
			 * Adding the casts to double seems to be good enough to fix
			 * lighting glitches when Quakespasm is compiled as x86_64
			 * and using SSE2 floating-point.  A potential trouble spot
			 * is the hallway at the beginning of mfxsp17.  -- ericw
			 */
			val =   ((double)v->position[0] * (double)tex->vecs[j][0]) + 
                    ((double)v->position[1] * (double)tex->vecs[j][1]) +
                    ((double)v->position[2] * (double)tex->vecs[j][2]) +
                    (double)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] > MAX_SURF_EXTENTS )
			Host_Error ("Mod_CalcSurfaceExtents: bad surface extents (%d, max = %d), texture %s in %s", s->extents[i], MAX_SURF_EXTENTS, tex->texture->name, loadmodel->name);
		
		if ( !(tex->flags & TEX_SPECIAL) && s->extents[i] > 512 ) // old limit warning
			Con_DWarning ("Mod_CalcSurfaceExtents: surface extents exceeds standard limit (%d, normal max = %d), texture %s in %s\n", s->extents[i], 512, tex->texture->name, loadmodel->name);
	}
}

/*
================
Mod_PolyForUnlitSurface
creates polys for unlightmapped surfaces (sky and water)

TODO: merge this into R_BuildSurfaceDisplayList?
================
*/
void Mod_PolyForUnlitSurface (msurface_t *s)
{
	vec3_t		verts[64];
	int			numverts, i, lindex;
	float		*vec;
	glpoly_t	*poly;
	float		texscale;

	if (s->flags & (SURF_DRAWTURB | SURF_DRAWSKY))
		texscale = (1.0/128.0); // warp animation repeats every 128 units
	else
		texscale = (1.0/16.0); // to match notexture_mip

	//
	// convert edges back to a normal polygon
	//
	numverts = 0;
	for (i=0 ; i<s->numedges ; i++)
	{
		lindex = loadmodel->surfedges[s->firstedge + i];

		if (lindex > 0)
			vec = loadmodel->vertexes[loadmodel->edges[lindex].v[0]].position;
		else
			vec = loadmodel->vertexes[loadmodel->edges[-lindex].v[1]].position;

		if (numverts >= 64)
			Host_Error ("Mod_PolyForUnlitSurface: excessive numverts %i", numverts);

		VectorCopy (vec, verts[numverts]);
		numverts++;
	}

	//create the poly
	poly = Hunk_AllocName (sizeof(glpoly_t) + (numverts-4) * VERTEXSIZE * sizeof(float), "unlitpoly");
	poly->next = NULL;
	s->polys = poly;
	poly->numverts = numverts;
	for (i=0, vec=(float *)verts; i<numverts; i++, vec+= 3)
	{
		VectorCopy (vec, poly->verts[i]);
		poly->verts[i][3] = DotProduct(vec, s->texinfo->vecs[0]) * texscale;
		poly->verts[i][4] = DotProduct(vec, s->texinfo->vecs[1]) * texscale;
	}
}

/*
=================
Mod_CalcSurfaceBounds

calculate bounding box for per-surface frustum culling
=================
*/
void Mod_CalcSurfaceBounds (msurface_t *s)
{
	int			i, e;
	mvertex_t	*v;

	s->mins[0] = s->mins[1] = s->mins[2] = 9999;
	s->maxs[0] = s->maxs[1] = s->maxs[2] = -9999;

	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]];

		if (s->mins[0] > v->position[0])
			s->mins[0] = v->position[0];
		if (s->mins[1] > v->position[1])
			s->mins[1] = v->position[1];
		if (s->mins[2] > v->position[2])
			s->mins[2] = v->position[2];

		if (s->maxs[0] < v->position[0])
			s->maxs[0] = v->position[0];
		if (s->maxs[1] < v->position[1])
			s->maxs[1] = v->position[1];
		if (s->maxs[2] < v->position[2])
			s->maxs[2] = v->position[2];
	}
	
	// midpoint
	for (i=0 ; i<3 ; i++)
	{
		// get midpoint
		s->midp[i] = s->mins[i] + (s->maxs[i] - s->mins[i]) * 0.5f;
	}
}


/*
=================
Mod_SetDrawingFlags

set the drawing flags flag
=================
*/
void Mod_SetDrawingFlags (msurface_t *out)
{
	if (!strncasecmp(out->texinfo->texture->name, "sky", 3)) // sky surface (also note: was strncmp, changed to match qbsp)
	{
		out->flags |= (SURF_DRAWSKY | SURF_DRAWTILED);
		Mod_PolyForUnlitSurface (out);
		// no more subdivision 
	}
	else if (out->texinfo->texture->name[0] == '*') // warp surface
	{
		out->flags |= (SURF_DRAWTURB | SURF_DRAWTILED);

		// detect special liquid types
		if (!strncasecmp(out->texinfo->texture->name, "*lava", 5)
		|| !strncasecmp(out->texinfo->texture->name, "*brim", 5))
			out->flags |= SURF_DRAWLAVA;
		else if (!strncasecmp(out->texinfo->texture->name, "*slime", 6))
			out->flags |= SURF_DRAWSLIME;
		else if (!strncasecmp(out->texinfo->texture->name, "*tele", 5)
		|| !strncasecmp(out->texinfo->texture->name, "*rift", 5)
		|| !strncasecmp(out->texinfo->texture->name, "*gate", 5))
			out->flags |= SURF_DRAWTELEPORT;
		else
			out->flags |= SURF_DRAWWATER; 

		Mod_PolyForUnlitSurface (out);
		// no more subdivision 
	}
	else if (out->texinfo->texture->name[0] == '{') // surface with fence texture
	{
		out->flags |= SURF_DRAWFENCE;
	}
	else if (out->texinfo->flags & TEX_MISSING) // texture is missing from bsp
	{
		if (out->samples) // lightmapped
		{
			out->flags |= SURF_NOTEXTURE;
		}
		else // not lightmapped
		{
			out->flags |= (SURF_NOTEXTURE | SURF_DRAWTILED);
			Mod_PolyForUnlitSurface (out);
		}
	}
}

/*
=================
Mod_LoadFaces_S

short version
=================
*/
void Mod_LoadFaces_S (lump_t *l)
{
	dface_s_t	*in;
	msurface_t 	*out;
	int		i, count, surfnum, lofs;
	int			planenum, side;

	in = (dface_s_t *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadFaces_S: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > 32767) // old limit warning
		Con_DWarning ("Mod_LoadFaces_S: faces exceeds standard limit (%d, normal max = %d) in %s\n", count, 32767, loadmodel->name);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->surfaces = out;
	loadmodel->numsurfaces = count;

	for ( surfnum=0 ; surfnum<count ; surfnum++, in++, out++)
	{
		out->firstedge = LittleLong (in->firstedge);
		out->numedges = LittleShort (in->numedges);
		out->flags = 0;

		planenum = LittleShort (in->planenum);
		side = LittleShort (in->side);
		if (side)
			out->flags |= SURF_PLANEBACK;			

		out->plane = loadmodel->planes + planenum;

		out->texinfo = loadmodel->texinfo + LittleShort (in->texinfo);

		Mod_CalcSurfaceExtents (out);

		Mod_CalcSurfaceBounds (out); // for per-surface frustum culling

		// lighting info
		for (i=0 ; i<MAXLIGHTMAPS ; i++)
			out->styles[i] = in->styles[i];
		lofs = LittleLong(in->lightofs);
		if (lofs == -1)
			out->samples = NULL;
		else
			out->samples = loadmodel->lightdata + (lofs * 3); // lit support via lordhavoc (was "+ i") 
		
		Mod_SetDrawingFlags (out); // set the drawing flags flag
	}
}

/*
=================
Mod_LoadFaces_L

long version (bsp2)
=================
*/
void Mod_LoadFaces_L (lump_t *l)
{
	dface_l_t	*in;
	msurface_t 	*out;
	int		i, count, surfnum, lofs;
	int			planenum, side;

	in = (dface_l_t *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadFaces_L: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > MAX_MAP_FACES) // bsp2 excessive count warning
		Con_DWarning ("Mod_LoadFaces_L: bsp2 faces excessive count (%d, normal max = %d) in %s\n", count, MAX_MAP_FACES, loadmodel->name);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->surfaces = out;
	loadmodel->numsurfaces = count;

	for ( surfnum=0 ; surfnum<count ; surfnum++, in++, out++)
	{
		out->firstedge = LittleLong (in->firstedge);
		out->numedges = LittleLong (in->numedges);
		out->flags = 0;

		planenum = LittleLong (in->planenum);
		side = LittleLong (in->side);
		if (side)
			out->flags |= SURF_PLANEBACK;			

		out->plane = loadmodel->planes + planenum;

		out->texinfo = loadmodel->texinfo + LittleLong (in->texinfo);

		Mod_CalcSurfaceExtents (out);

		Mod_CalcSurfaceBounds (out); // for per-surface frustum culling

		// lighting info
		for (i=0 ; i<MAXLIGHTMAPS ; i++)
			out->styles[i] = in->styles[i];
		lofs = LittleLong(in->lightofs);
		if (lofs == -1)
			out->samples = NULL;
		else
			out->samples = loadmodel->lightdata + (lofs * 3); // lit support via lordhavoc (was "+ i") 
		
		Mod_SetDrawingFlags (out); // set the drawing flags flag
	}
}

/*
=================
Mod_LoadFaces
=================
*/
void Mod_LoadFaces (lump_t *l, int bsp2)
{
	if (bsp2)
		Mod_LoadFaces_L (l);
	else
		Mod_LoadFaces_S (l);
}

/*
=================
Mod_SetParent
=================
*/
void Mod_SetParent (mnode_t *node, mnode_t *parent)
{
	node->parent = parent;
	if (node->contents < 0)
		return;
	Mod_SetParent (node->children[0], node);
	Mod_SetParent (node->children[1], node);
}

/*
=================
Mod_LoadNodes_S

short version
=================
*/
void Mod_LoadNodes_S (lump_t *l)
{
	int	i, j, count, p;
	dnode_s_t		*in;
	mnode_t 	*out;

	in = (dnode_s_t *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadNodes_S: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > 32767) // old limit warning
		Con_DWarning ("Mod_LoadNodes_S: nodes exceeds standard limit (%d, normal max = %d) in %s\n", count, 32767, loadmodel->name);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->nodes = out;
	loadmodel->numnodes = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		for (j=0 ; j<3 ; j++)
		{
			out->mins[j] = LittleShort (in->mins[j]);
			out->maxs[j] = LittleShort (in->maxs[j]);
		}
	
		p = LittleLong (in->planenum);
		out->plane = loadmodel->planes + p;

		out->firstsurface = (unsigned short)LittleShort (in->firstface);
		out->numsurfaces = (unsigned short)LittleShort (in->numfaces);

		for (j=0 ; j<2 ; j++)
		{
			//johnfitz -- hack to handle nodes > 32k, adapted from darkplaces
			p = (unsigned short)LittleShort (in->children[j]);
			if (p < count)
				out->children[j] = loadmodel->nodes + p;
			else
			{
				p = 65535 - p; //note this uses 65535 intentionally, -1 is leaf 0
				if (p < loadmodel->numleafs)
					out->children[j] = (mnode_t *)(loadmodel->leafs + p);
				else
				{
					Con_Warning ("Mod_LoadNodes_S: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->numleafs);
					out->children[j] = (mnode_t *)(loadmodel->leafs); //map it to the solid leaf
				}
			}
		}
	}

	Mod_SetParent (loadmodel->nodes, NULL);	// sets nodes and leafs
}

/*
=================
Mod_LoadNodes_L1

long version (bsp2 v1)
=================
*/
void Mod_LoadNodes_L1 (lump_t *l)
{
	int	i, j, count, p;
	dnode_l1_t		*in;
	mnode_t 	*out;

	in = (dnode_l1_t *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadNodes_L1: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > MAX_MAP_NODES) // bsp2 excessive count warning
		Con_DWarning ("Mod_LoadNodes_L1: bsp2 nodes excessive count (%d, normal max = %d) in %s\n", count, MAX_MAP_NODES, loadmodel->name);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->nodes = out;
	loadmodel->numnodes = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		for (j=0 ; j<3 ; j++)
		{
			out->mins[j] = LittleShort (in->mins[j]);
			out->maxs[j] = LittleShort (in->maxs[j]);
		}
	
		p = LittleLong (in->planenum);
		out->plane = loadmodel->planes + p;

		out->firstsurface = LittleLong (in->firstface);
		out->numsurfaces = LittleLong (in->numfaces);

		for (j=0 ; j<2 ; j++)
		{
			//johnfitz -- hack to handle nodes > 32k, adapted from darkplaces
			p = LittleLong (in->children[j]);
			if (p >= 0 && p < count)
				out->children[j] = loadmodel->nodes + p;
			else
			{
				p = 0xffffffff - p; //note this uses 65535^2 intentionally, -1 is leaf 0
				if (p >= 0 && p < loadmodel->numleafs)
					out->children[j] = (mnode_t *)(loadmodel->leafs + p);
				else
				{
					Con_Warning ("Mod_LoadNodes_L1: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->numleafs);
					out->children[j] = (mnode_t *)(loadmodel->leafs); //map it to the solid leaf
				}
			}
		}
	}

	Mod_SetParent (loadmodel->nodes, NULL);	// sets nodes and leafs
}

/*
=================
Mod_LoadNodes_L2

long version (bsp2 v2)
=================
*/
void Mod_LoadNodes_L2 (lump_t *l)
{
	int	i, j, count, p;
	dnode_l2_t		*in;
	mnode_t 	*out;

	in = (dnode_l2_t *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadNodes_L2: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > MAX_MAP_NODES) // bsp2 excessive count warning
		Con_DWarning ("Mod_LoadNodes_L2: bsp2 nodes excessive count (%d, normal max = %d) in %s\n", count, MAX_MAP_NODES, loadmodel->name);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->nodes = out;
	loadmodel->numnodes = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		for (j=0 ; j<3 ; j++)
		{
			out->mins[j] = LittleFloat (in->mins[j]);
			out->maxs[j] = LittleFloat (in->maxs[j]);
		}
	
		p = LittleLong (in->planenum);
		out->plane = loadmodel->planes + p;

		out->firstsurface = LittleLong (in->firstface);
		out->numsurfaces = LittleLong (in->numfaces);

		for (j=0 ; j<2 ; j++)
		{
			//johnfitz -- hack to handle nodes > 32k, adapted from darkplaces
			p = LittleLong (in->children[j]);
			if (p >= 0 && p < count)
				out->children[j] = loadmodel->nodes + p;
			else
			{
				p = 0xffffffff - p; //note this uses 65535^2 intentionally, -1 is leaf 0
				if (p >= 0 && p < loadmodel->numleafs)
					out->children[j] = (mnode_t *)(loadmodel->leafs + p);
				else
				{
					Con_Warning ("Mod_LoadNodes_L2: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->numleafs);
					out->children[j] = (mnode_t *)(loadmodel->leafs); //map it to the solid leaf
				}
			}
		}
	}

	Mod_SetParent (loadmodel->nodes, NULL);	// sets nodes and leafs
}

/*
=================
Mod_LoadNodes
=================
*/
void Mod_LoadNodes (lump_t *l, int bsp2)
{
	if (bsp2 == 2)
		Mod_LoadNodes_L2 (l);
	else if (bsp2)
		Mod_LoadNodes_L1 (l);
	else
		Mod_LoadNodes_S (l);
}

/*
=================
Mod_LoadLeafs_S

short version
=================
*/
void Mod_LoadLeafs_S (lump_t *l)
{
	dleaf_s_t 	*in;
	mleaf_t 	*out;
	int	i, j, count, p;
	int filelen;

	loadmodel->leafs = NULL;
	loadmodel->numleafs = 0;

	if (extleafdata) // load external leaf data, if exist
	{
		Con_DPrintf ("load external leaf data\n");
		in = (dleaf_s_t *)extleafdata;
		filelen = extleaflen;
	}
	else // load standard leaf
	{
		in = (dleaf_s_t *)(mod_base + l->fileofs);
		filelen = l->filelen;
	}

	if (filelen % sizeof(*in))
		Host_Error ("Mod_LoadLeafs_S: funny lump size in %s",loadmodel->name);
	count = filelen / sizeof(*in);
	if (count > 32767) // old limit exceed
		Host_Error ("Mod_LoadLeafs_S: leafs exceeds standard limit (%d, max = %d) in %s", count, 32767, loadmodel->name);
	out = (mleaf_t *) Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->leafs = out;
	loadmodel->numleafs = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		for (j=0 ; j<3 ; j++)
		{
			out->mins[j] = LittleShort (in->mins[j]);
			out->maxs[j] = LittleShort (in->maxs[j]);
		}

		p = LittleLong(in->contents);
		out->contents = p;

		out->firstmarksurface = loadmodel->marksurfaces + (unsigned short)LittleShort (in->firstmarksurface);
		out->nummarksurfaces = (unsigned short)LittleShort (in->nummarksurfaces);

		p = LittleLong(in->visofs);
		if (p == -1)
			out->compressed_vis = NULL;
		else
			out->compressed_vis = loadmodel->visdata + p;
		out->efrags = NULL;
		
		for (j=0 ; j<4 ; j++)
			out->ambient_sound_level[j] = in->ambient_level[j];
	}	
}

/*
=================
Mod_LoadLeafs_L1

long version (bsp2 v1)
=================
*/
void Mod_LoadLeafs_L1 (lump_t *l)
{
	dleaf_l1_t 	*in;
	mleaf_t 	*out;
	int	i, j, count, p;
	int filelen;

	loadmodel->leafs = NULL;
	loadmodel->numleafs = 0;

	if (extleafdata) // load external leaf data, if exist
	{
		Con_DPrintf ("load external leaf data\n");
		in = (dleaf_l1_t *)extleafdata;
		filelen = extleaflen;
	}
	else // load standard leaf
	{
		in = (dleaf_l1_t *)(mod_base + l->fileofs);
		filelen = l->filelen;
	}

	if (filelen % sizeof(*in))
		Host_Error ("Mod_LoadLeafs_L1: funny lump size in %s",loadmodel->name);
	count = filelen / sizeof(*in);
	out = (mleaf_t *) Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->leafs = out;
	loadmodel->numleafs = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		for (j=0 ; j<3 ; j++)
		{
			out->mins[j] = LittleShort (in->mins[j]);
			out->maxs[j] = LittleShort (in->maxs[j]);
		}

		p = LittleLong(in->contents);
		out->contents = p;

		out->firstmarksurface = loadmodel->marksurfaces + LittleLong (in->firstmarksurface);
		out->nummarksurfaces = LittleLong (in->nummarksurfaces);

		p = LittleLong(in->visofs);
		if (p == -1)
			out->compressed_vis = NULL;
		else
			out->compressed_vis = loadmodel->visdata + p;
		out->efrags = NULL;
		
		for (j=0 ; j<4 ; j++)
			out->ambient_sound_level[j] = in->ambient_level[j];
	}	
}

/*
=================
Mod_LoadLeafs_L2

long version (bsp2 v2)
=================
*/
void Mod_LoadLeafs_L2 (lump_t *l)
{
	dleaf_l2_t 	*in;
	mleaf_t 	*out;
	int	i, j, count, p;
	int filelen;

	loadmodel->leafs = NULL;
	loadmodel->numleafs = 0;

	if (extleafdata) // load external leaf data, if exist
	{
		Con_DPrintf ("load external leaf data\n");
		in = (dleaf_l2_t *)extleafdata;
		filelen = extleaflen;
	}
	else // load standard leaf
	{
		in = (dleaf_l2_t *)(mod_base + l->fileofs);
		filelen = l->filelen;
	}

	if (filelen % sizeof(*in))
		Host_Error ("Mod_LoadLeafs_L2: funny lump size in %s",loadmodel->name);
	count = filelen / sizeof(*in);
	out = (mleaf_t *) Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->leafs = out;
	loadmodel->numleafs = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		for (j=0 ; j<3 ; j++)
		{
			out->mins[j] = LittleFloat (in->mins[j]);
			out->maxs[j] = LittleFloat (in->maxs[j]);
		}

		p = LittleLong(in->contents);
		out->contents = p;

		out->firstmarksurface = loadmodel->marksurfaces + LittleLong (in->firstmarksurface);
		out->nummarksurfaces = LittleLong (in->nummarksurfaces);

		p = LittleLong(in->visofs);
		if (p == -1)
			out->compressed_vis = NULL;
		else
			out->compressed_vis = loadmodel->visdata + p;
		out->efrags = NULL;
		
		for (j=0 ; j<4 ; j++)
			out->ambient_sound_level[j] = in->ambient_level[j];
	}	
}

/*
=================
Mod_LoadLeafs
=================
*/
void Mod_LoadLeafs (lump_t *l, int bsp2)
{
	if (bsp2 == 2)
		Mod_LoadLeafs_L2 (l);
	else if (bsp2)
		Mod_LoadLeafs_L1 (l);
	else
		Mod_LoadLeafs_S (l);
}

/*
=================
Mod_LoadClipnodes_S

short version
=================
*/
void Mod_LoadClipnodes_S (lump_t *l)
{
	dclipnode_s_t *in;
	mclipnode_t *out; //johnfitz -- was dclipnode_t
	int			i, count;
	hull_t		*hull;

	in = (dclipnode_s_t *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadClipnodes_S: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > 32767) // old limit warning
		Con_DWarning ("Mod_LoadClipnodes_S: clipnodes exceeds standard limit (%d, normal max = %d) in %s\n", count, 32767, loadmodel->name);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->clipnodes = out;
	loadmodel->numclipnodes = count;

	// Player Hull
	hull = &loadmodel->hulls[1];
	hull->clipnodes = out;
	hull->firstclipnode = 0;
	hull->lastclipnode = count-1;
	hull->planes = loadmodel->planes;

	VectorSet (hull->clip_mins, -16, -16, -24);
	VectorSet (hull->clip_maxs,  16,  16,  32);
	hull->available = true;

	// Monster hull
	hull = &loadmodel->hulls[2];
	hull->clipnodes = out;
	hull->firstclipnode = 0;
	hull->lastclipnode = count-1;
	hull->planes = loadmodel->planes;

	VectorSet (hull->clip_mins, -32, -32, -24);
	VectorSet (hull->clip_maxs,  32,  32,  64);
	hull->available = true;

	for (i=0 ; i<count ; i++, out++, in++)
	{
		out->planenum = LittleLong(in->planenum);

		// bounds check
		if (out->planenum < 0 || out->planenum >= loadmodel->numplanes)
			Host_Error ("Mod_LoadClipnodes_S: planenum in clipnode %d out of bounds (%d, max = %d) in %s", i, out->planenum, loadmodel->numplanes, loadmodel->name);

		//johnfitz -- support clipnodes > 32k
		out->children[0] = (unsigned short)LittleShort(in->children[0]);
		out->children[1] = (unsigned short)LittleShort(in->children[1]);
		
		if (out->children[0] >= count)
			out->children[0] -= 65536;
		if (out->children[1] >= count)
			out->children[1] -= 65536;
		//johnfitz
	}
}

/*
=================
Mod_LoadClipnodes_L

long version (bsp2)
=================
*/
void Mod_LoadClipnodes_L (lump_t *l)
{
	dclipnode_l_t *in;
	mclipnode_t *out; //johnfitz -- was dclipnode_t
	int			i, count;
	hull_t		*hull;

	in = (dclipnode_l_t *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadClipnodes_L: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > MAX_MAP_CLIPNODES) // bsp2 excessive count warning
		Con_DWarning ("Mod_LoadClipnodes_L: bsp2 clipnodes excessive count (%d, normal max = %d) in %s\n", count, MAX_MAP_CLIPNODES, loadmodel->name);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->clipnodes = out;
	loadmodel->numclipnodes = count;

	// Player Hull
	hull = &loadmodel->hulls[1];
	hull->clipnodes = out;
	hull->firstclipnode = 0;
	hull->lastclipnode = count-1;
	hull->planes = loadmodel->planes;

	VectorSet (hull->clip_mins, -16, -16, -24);
	VectorSet (hull->clip_maxs,  16,  16,  32);
	hull->available = true;

	// Monster hull
	hull = &loadmodel->hulls[2];
	hull->clipnodes = out;
	hull->firstclipnode = 0;
	hull->lastclipnode = count-1;
	hull->planes = loadmodel->planes;

	VectorSet (hull->clip_mins, -32, -32, -24);
	VectorSet (hull->clip_maxs,  32,  32,  64);
	hull->available = true;

	for (i=0 ; i<count ; i++, out++, in++)
	{
		out->planenum = LittleLong(in->planenum);

		// bounds check
		if (out->planenum < 0 || out->planenum >= loadmodel->numplanes)
			Host_Error ("Mod_LoadClipnodes_L: planenum in clipnode %d out of bounds (%d, max = %d) in %s", i, out->planenum, loadmodel->numplanes, loadmodel->name);

		//johnfitz -- support clipnodes > 32k
		out->children[0] = LittleLong(in->children[0]);
		out->children[1] = LittleLong(in->children[1]);
		
		//Spike: FIXME: bounds check
	}
}

/*
=================
Mod_LoadClipnodes
=================
*/
void Mod_LoadClipnodes (lump_t *l, int bsp2)
{
	if (bsp2)
		Mod_LoadClipnodes_L (l);
	else
		Mod_LoadClipnodes_S (l);
}

/*
=================
Mod_MakeHull0

Duplicate the drawing hull structure as a clipping hull
=================
*/
void Mod_MakeHull0 (void)
{
	mnode_t		*in, *child;
	mclipnode_t *out; //johnfitz -- was dclipnode_t
	int			i, j, count;
	hull_t		*hull;
	
	hull = &loadmodel->hulls[0];
	
	in = loadmodel->nodes;
	count = loadmodel->numnodes;
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	hull->clipnodes = out;
	hull->firstclipnode = 0;
	hull->lastclipnode = count-1;
	hull->planes = loadmodel->planes;

	for (i=0 ; i<count ; i++, out++, in++)
	{
		out->planenum = in->plane - loadmodel->planes;
		for (j=0 ; j<2 ; j++)
		{
			child = in->children[j];
			if (child->contents < 0)
				out->children[j] = child->contents;
			else
				out->children[j] = child - loadmodel->nodes;
		}
	}
}

/*
=================
Mod_LoadMarksurfaces_S

short version
=================
*/
void Mod_LoadMarksurfaces_S (lump_t *l)
{	
	int		i, j, count;
	short		*in;
	msurface_t **out;
	
	in = (short *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadMarksurfaces_S: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > 32767) // old limit warning
		Con_DWarning ("Mod_LoadMarksurfaces_S: marksurfaces exceeds standard limit (%d, normal max = %d) in %s\n", count, 32767, loadmodel->name);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->marksurfaces = out;
	loadmodel->nummarksurfaces = count;

	for ( i=0 ; i<count ; i++)
	{
		j = (unsigned short)LittleShort(in[i]); //johnfitz -- explicit cast as unsigned short
		if (j >= loadmodel->numsurfaces)
			Host_Error ("Mod_LoadMarksurfaces_S: bad surface number (%d, max = %d) in %s\n", j, loadmodel->numsurfaces, loadmodel->name);
		out[i] = loadmodel->surfaces + j;
	}
}

/*
=================
Mod_LoadMarksurfaces_L

long version (bsp2)
=================
*/
void Mod_LoadMarksurfaces_L (lump_t *l)
{	
	int		i, j, count;
	unsigned int	*in;
	msurface_t **out;
	
	in = (unsigned int *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadMarksurfaces_L: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > MAX_MAP_MARKSURFACES) // bsp2 excessive count warning
		Con_DWarning ("Mod_LoadMarksurfaces_L: bsp2 marksurfaces excessive count (%d, normal max = %d) in %s\n", count, MAX_MAP_MARKSURFACES, loadmodel->name);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->marksurfaces = out;
	loadmodel->nummarksurfaces = count;

	for ( i=0 ; i<count ; i++)
	{
		j = LittleLong(in[i]);
		if (j >= loadmodel->numsurfaces)
			Host_Error ("Mod_LoadMarksurfaces_L: bad surface number (%d, max = %d) in %s\n", j, loadmodel->numsurfaces, loadmodel->name);
		out[i] = loadmodel->surfaces + j;
	}
}

/*
=================
Mod_LoadMarksurfaces
=================
*/
void Mod_LoadMarksurfaces (lump_t *l, int bsp2)
{
	if (bsp2)
		Mod_LoadMarksurfaces_L (l);
	else
		Mod_LoadMarksurfaces_S (l);
}

/*
=================
Mod_LoadSurfedges
=================
*/
void Mod_LoadSurfedges (lump_t *l)
{	
	int		i, count;
	int		*in, *out;
	
	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadSurfedges: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	out = Hunk_AllocName ( count*sizeof(*out), loadname);

	loadmodel->surfedges = out;
	loadmodel->numsurfedges = count;

	for ( i=0 ; i<count ; i++)
		out[i] = LittleLong (in[i]);
}


/*
=================
Mod_LoadPlanes
=================
*/
void Mod_LoadPlanes (lump_t *l)
{
	int			i, j;
	mplane_t	*out;
	dplane_t 	*in;
	int			count;
	int			bits;
	
	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		Host_Error ("Mod_LoadPlanes: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count > 32767) // old limit warning
		Con_DWarning ("Mod_LoadPlanes: planes exceeds standard limit (%d, normal max = %d) in %s\n", count, 32767, loadmodel->name);
	out = Hunk_AllocName ( count*2*sizeof(*out), loadname);

	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;
	}
}

/*
=================
RadiusFromBounds
=================
*/
float RadiusFromBounds (vec3_t mins, vec3_t maxs)
{
	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);
}

/*
=================
Mod_LoadBrushModel
=================
*/
void Mod_LoadBrushModel (model_t *mod, void *buffer)
{
	int			i, j;
	int			bsp2 = 0; // bsp2 support
	dheader_t	*header;
	dmodel_t 	*bm;
	float		radius;
	qboolean	servermatch, clientmatch;
	
	loadmodel->type = mod_brush;
	
// isworldmodel check
	servermatch = sv.modelname[0] && !strcasecmp (loadname, sv.name);
	clientmatch = cl.worldname[0] && !strcasecmp (loadname, cl.worldname);
	Con_DPrintf ("loadname: %s\n", loadname);
	if (servermatch)
		Con_DPrintf ("sv.modelname: %s\n", sv.modelname);
	if (clientmatch)
		Con_DPrintf ("cl.modelname: %s\n", cl.worldname);
	loadmodel->isworldmodel = servermatch || clientmatch;
	
	header = (dheader_t *)buffer;
	mod->bspversion = LittleLong (header->version);
	Con_DPrintf ("bspversion: %i ", mod->bspversion);
	switch(mod->bspversion)
	{
	case BSPVERSION:
		Con_DPrintf ("(Quake)\n");
		bsp2 = 0;
		break;
	case BSP2RMQVERSION:
		Con_DPrintf ("(BSP2 v1 RMQ)\n");
		bsp2 = 1;	// first iteration (RMQ)
		break;
	case BSP2VERSION:
		Con_DPrintf ("(BSP2 v2)\n");
		bsp2 = 2;	// sanitised revision
		break;
	default:
		Con_DPrintf ("(unknown)\n");
		Host_Error ("Mod_LoadBrushModel: %s has wrong version number (%i should be %i (Quake), %i (RMQ) or %i (BSP2))", mod->name, mod->bspversion, BSPVERSION, BSP2RMQVERSION, BSP2VERSION); // was Sys_Error
		break;
	}

// 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], bsp2);
	Mod_LoadSurfedges (&header->lumps[LUMP_SURFEDGES]);
	Mod_LoadTextures (&header->lumps[LUMP_TEXTURES]);
	Mod_LoadLighting (&header->lumps[LUMP_LIGHTING]);
	Mod_LoadPlanes (&header->lumps[LUMP_PLANES]);
	Mod_LoadTexinfo (&header->lumps[LUMP_TEXINFO]);
	Mod_LoadFaces (&header->lumps[LUMP_FACES], bsp2);
	Mod_LoadMarksurfaces (&header->lumps[LUMP_MARKSURFACES], bsp2);
	Mod_LoadVisibility (&header->lumps[LUMP_VISIBILITY]);
	Mod_LoadLeafs (&header->lumps[LUMP_LEAFS], bsp2);
	Mod_LoadNodes (&header->lumps[LUMP_NODES], bsp2);
	Mod_LoadClipnodes (&header->lumps[LUMP_CLIPNODES], bsp2);
	Mod_LoadEntities (&header->lumps[LUMP_ENTITIES]);
	Mod_LoadSubmodels (&header->lumps[LUMP_MODELS]);

	Mod_MakeHull0 ();

	mod->numframes = 2;		// regular and alternate animation

//
// set up the submodels (FIXME: this is confusing)
//

	// okay, so that i stop getting confused every time i look at this loop, here's how it works:
	// we're looping through the submodels starting at 0.  Submodel 0 is the main model, so we don't have to
	// worry about clobbering data the first time through, since it's the same data.  At the end of the loop,
	// we create a new copy of the data to use the next time through.
	for (i=0 ; i<mod->numsubmodels ; i++)
	{
		bm = &mod->submodels[i];

		mod->hulls[0].firstclipnode = bm->headnode[0];
		for (j=1 ; j<MAX_MAP_HULLS ; j++)
		{
			mod->hulls[j].firstclipnode = bm->headnode[j];
			mod->hulls[j].lastclipnode = mod->numclipnodes-1;
		}

		mod->firstmodelsurface = bm->firstface;
		mod->nummodelsurfaces = bm->numfaces;

		VectorCopy (bm->maxs, mod->maxs);
		VectorCopy (bm->mins, mod->mins);

		// calculate rotate bounds and yaw bounds
		radius = RadiusFromBounds (mod->mins, mod->maxs);
		mod->rmaxs[0] = mod->rmaxs[1] = mod->rmaxs[2] = mod->ymaxs[0] = mod->ymaxs[1] = mod->ymaxs[2] = radius;
		mod->rmins[0] = mod->rmins[1] = mod->rmins[2] = mod->ymins[0] = mod->ymins[1] = mod->ymins[2] = -radius;

		mod->numleafs = bm->visleafs;

		if (i < mod->numsubmodels-1)
		{	// duplicate the basic information
			char	name[10];

			sprintf (name, "*%i", i+1);
			loadmodel = Mod_FindName (name);
			*loadmodel = *mod;
			strcpy (loadmodel->name, name);
			mod = loadmodel;
		}
	}
}

/*
==============================================================================

ALIAS MODELS

==============================================================================
*/

aliashdr_t	*pheader;

stvert_t	stverts[MAXALIASVERTS];
mtriangle_t	triangles[MAXALIASTRIS];

// a pose is a single set of vertexes.  a frame may be
// an animating sequence of poses
trivertx_t	*poseverts[MAXALIASFRAMES];
int			posenum;


/*
=================
Mod_LoadAliasFrame
=================
*/
void *Mod_LoadAliasFrame (void *pin, maliasframedesc_t *frame)
{
	trivertx_t		*pinframe;
	int		i;
	daliasframe_t	*pdaliasframe;
	
	pdaliasframe = (daliasframe_t *)pin;

	strcpy (frame->name, pdaliasframe->name);
	frame->firstpose = posenum;
	frame->numposes = 1;

	for (i=0 ; i<3 ; i++)
	{
	// these are byte values, so we don't have to worry about
	// endianness
		frame->bboxmin.v[i] = pdaliasframe->bboxmin.v[i];
		frame->bboxmax.v[i] = pdaliasframe->bboxmax.v[i];
	}

	pinframe = (trivertx_t *)(pdaliasframe + 1);

	if (posenum >= MAXALIASFRAMES)
		Host_Error ("Mod_LoadAliasFrame: invalid # of frames (%d, max = %d) in %s", posenum, MAXALIASFRAMES, loadmodel->name);

	poseverts[posenum] = pinframe;
	posenum++;

	pinframe += pheader->numverts;

	return (void *)pinframe;
}


/*
=================
Mod_LoadAliasGroup
=================
*/
void *Mod_LoadAliasGroup (void *pin,  maliasframedesc_t *frame)
{
	daliasgroup_t		*pingroup;
	int					i, numframes;
	daliasinterval_t	*pin_intervals;
	void				*ptemp;
	
	pingroup = (daliasgroup_t *)pin;

	numframes = LittleLong (pingroup->numframes);

	frame->firstpose = posenum;
	frame->numposes = numframes;

	for (i=0 ; i<3 ; i++)
	{
	// these are byte values, so we don't have to worry about endianness
		frame->bboxmin.v[i] = pingroup->bboxmin.v[i];
		frame->bboxmax.v[i] = pingroup->bboxmax.v[i];
	}

	pin_intervals = (daliasinterval_t *)(pingroup + 1);

	frame->interval = LittleFloat (pin_intervals->interval);

	pin_intervals += numframes;

	ptemp = (void *)pin_intervals;

	for (i=0 ; i<numframes ; i++)
	{
		if (posenum >= MAXALIASFRAMES)
			Host_Error ("Mod_LoadAliasGroup: invalid # of frames (%d, max = %d) in %s", posenum, MAXALIASFRAMES, loadmodel->name);

		poseverts[posenum] = (trivertx_t *)((daliasframe_t *)ptemp + 1);
		posenum++;

		ptemp = (trivertx_t *)((daliasframe_t *)ptemp + 1) + pheader->numverts;
	}

	return ptemp;
}

//=========================================================


/*
=================
Mod_FloodFillSkin

Fill background pixels so mipmapping doesn't have haloes - Ed
=================
*/

typedef struct
{
	short		x, y;
} floodfill_t;

// must be a power of 2
#define FLOODFILL_FIFO_SIZE 0x1000
#define FLOODFILL_FIFO_MASK (FLOODFILL_FIFO_SIZE - 1)

#define FLOODFILL_STEP( off, dx, dy ) \
do { \
	if (pos[off] == fillcolor) \
	{ \
		pos[off] = 255; \
		fifo[inpt].x = x + (dx), fifo[inpt].y = y + (dy); \
		inpt = (inpt + 1) & FLOODFILL_FIFO_MASK; \
	} \
	else if (pos[off] != 255) fdc = pos[off]; \
} while (0)

void Mod_FloodFillSkin( byte *skin, int skinwidth, int skinheight )
{
	byte				fillcolor = *skin; // assume this is the pixel to fill
	floodfill_t			fifo[FLOODFILL_FIFO_SIZE];
	int					inpt = 0, outpt = 0;
	int					filledcolor = -1;
	int					i, size = skinwidth * skinheight, notfill;

	if (filledcolor == -1)
	{
		filledcolor = 0;
		// attempt to find opaque black
		for (i = 0; i < 256; ++i)
			if (d_8to24table[i] == (255 << 0)) // alpha 1.0
			{
				filledcolor = i;
				break;
			}
	}

	// can't fill to filled color or to transparent color (used as visited marker)
	if ((fillcolor == filledcolor) || (fillcolor == 255))
	{
//		Con_Warning ("Mod_FloodFillSkin: not filling skin from %d to %d\n", fillcolor, filledcolor);
		return;
	}

	for (i = notfill = 0; i < size && notfill < 2; ++i)
	{
		if (skin[i] != fillcolor)
			++notfill;
	}

	// don't fill almost mono-coloured texes
	if (notfill < 2)
	{
//		Con_Warning ("Mod_FloodFillSkin: not filling skin in %s\n", loadmodel->name);
		return;
	}

	fifo[inpt].x = 0, fifo[inpt].y = 0;
	inpt = (inpt + 1) & FLOODFILL_FIFO_MASK;

	while (outpt != inpt)
	{
		int			x = fifo[outpt].x, y = fifo[outpt].y;
		int			fdc = filledcolor;
		byte		*pos = &skin[x + skinwidth * y];

		outpt = (outpt + 1) & FLOODFILL_FIFO_MASK;

		if (x > 0)				FLOODFILL_STEP( -1, -1, 0 );
		if (x < skinwidth - 1)	FLOODFILL_STEP( 1, 1, 0 );
		if (y > 0)				FLOODFILL_STEP( -skinwidth, 0, -1 );
		if (y < skinheight - 1)	FLOODFILL_STEP( skinwidth, 0, 1 );
		skin[x + skinwidth * y] = fdc;
	}
}

/*
===============
Mod_LoadAllSkins
===============
*/
void *Mod_LoadAllSkins (int numskins, daliasskintype_t *pskintype)
{
	int		i, j, k, size;
	char	skinname[64];
	byte	*skin;
	byte	*texels;
	daliasskingroup_t		*pinskingroup;
	int		groupskins;
	daliasskininterval_t	*pinskinintervals;
	unsigned				offset; //johnfitz
	unsigned int			texflags = TEXPREF_PAD;

	skin = (byte *)(pskintype + 1);

	if (numskins < 1 || numskins > MAX_SKINS)
		Host_Error ("Mod_LoadAllSkins: invalid # of skins (%d, max = %d) in %s", numskins, MAX_SKINS, loadmodel->name);

	size = pheader->skinwidth * pheader->skinheight;

    if (loadmodel->flags & MF_HOLEY)
		texflags |= TEXPREF_ALPHA;

	for (i=0 ; i<numskins ; i++)
	{
		if (pskintype->type == ALIAS_SKIN_SINGLE) 
		{
			Mod_FloodFillSkin( skin, pheader->skinwidth, pheader->skinheight );
			// save 8 bit texels for the player model to remap
			//if (!strcmp(loadmodel->name,"progs/player.mdl"))
			{
				texels = Hunk_AllocName(size, loadname);
				pheader->texels[i] = texels - (byte *)pheader;
				memcpy (texels, (byte *)(pskintype + 1), size);
			}

			offset = (unsigned)(pskintype+1) - (unsigned)mod_base;
			if (IsFullbright ((byte *)(pskintype+1), size))
			{
				sprintf (skinname, "%s:frame%i", loadmodel->name, i);
				pheader->gltexture[i][0] =
				pheader->gltexture[i][1] =
				pheader->gltexture[i][2] =
				pheader->gltexture[i][3] = GL_LoadTexture (loadmodel, skinname, pheader->skinwidth, pheader->skinheight, SRC_INDEXED, (byte *)(pskintype+1), loadmodel->name, offset, texflags | TEXPREF_NOBRIGHT);

				sprintf (skinname, "%s:frame%i_glow", loadmodel->name, i);
				pheader->fullbright[i][0] =
				pheader->fullbright[i][1] =
				pheader->fullbright[i][2] =
				pheader->fullbright[i][3] = GL_LoadTexture (loadmodel, skinname, pheader->skinwidth, pheader->skinheight, SRC_INDEXED, (byte *)(pskintype+1), loadmodel->name, offset, texflags | TEXPREF_FULLBRIGHT);
			}
			else
			{
				sprintf (skinname, "%s:frame%i", loadmodel->name, i);
				pheader->gltexture[i][0] =
				pheader->gltexture[i][1] =
				pheader->gltexture[i][2] =
				pheader->gltexture[i][3] = GL_LoadTexture (loadmodel, skinname, pheader->skinwidth, pheader->skinheight, SRC_INDEXED, (byte *)(pskintype+1), loadmodel->name, offset, texflags);

				pheader->fullbright[i][0] =
				pheader->fullbright[i][1] =
				pheader->fullbright[i][2] =
				pheader->fullbright[i][3] = NULL;
			}

			pskintype = (daliasskintype_t *)((byte *)(pskintype+1) + size);
		} 
		else 
		{
			// animating skin group. yuck.
			pskintype++;
			pinskingroup = (daliasskingroup_t *)pskintype;
			groupskins = LittleLong (pinskingroup->numskins);
			pinskinintervals = (daliasskininterval_t *)(pinskingroup + 1);

			pskintype = (void *)(pinskinintervals + groupskins);

			for (j=0 ; j<groupskins ; j++)
			{
				Mod_FloodFillSkin( skin, pheader->skinwidth, pheader->skinheight ); // Is 'skin' really correct here?
				if (j == 0) 
				{
					texels = Hunk_AllocName(size, loadname);
					pheader->texels[i] = texels - (byte *)pheader;
					memcpy (texels, (byte *)(pskintype), size);
				}

				offset = (unsigned)(pskintype) - (unsigned)mod_base; //johnfitz
				if (IsFullbright ((byte *)(pskintype), size))
				{
					sprintf (skinname, "%s:frame%i_%i", loadmodel->name, i,j);
					pheader->gltexture[i][j&3] = GL_LoadTexture (loadmodel, skinname, pheader->skinwidth, pheader->skinheight, SRC_INDEXED, (byte *)(pskintype), loadmodel->name, offset, texflags | TEXPREF_NOBRIGHT);

					sprintf (skinname, "%s:frame%i_%i_glow", loadmodel->name, i,j);
					pheader->fullbright[i][j&3] = GL_LoadTexture (loadmodel, skinname, pheader->skinwidth, pheader->skinheight, SRC_INDEXED, (byte *)(pskintype), loadmodel->name, offset, texflags | TEXPREF_FULLBRIGHT);
				}
				else
				{
					sprintf (skinname, "%s:frame%i_%i", loadmodel->name, i,j);
					pheader->gltexture[i][j&3] = GL_LoadTexture (loadmodel, skinname, pheader->skinwidth, pheader->skinheight, SRC_INDEXED, (byte *)(pskintype), loadmodel->name, offset, texflags);

					pheader->fullbright[i][j&3] = NULL;
				}

				pskintype = (daliasskintype_t *)((byte *)(pskintype) + size);
			}
			k = j;
			for (/* */; j < 4; j++)
				pheader->gltexture[i][j&3] = pheader->gltexture[i][j - k]; 
		}
	}

	return (void *)pskintype;
}

//=========================================================================

/*
=================
Mod_CalcAliasBounds

calculate bounds of alias model for nonrotated, yawrotated, and fullrotated cases
=================
*/
void Mod_CalcAliasBounds (aliashdr_t *a)
{
	int			i,j,k;
	float		dist, yawradius, radius;
	vec3_t		v;

	//clear out all data
	for (i=0; i<3;i++)
	{
		loadmodel->mins[i] = loadmodel->ymins[i] = loadmodel->rmins[i] = 999999;
		loadmodel->maxs[i] = loadmodel->ymaxs[i] = loadmodel->rmaxs[i] = -999999;
		radius = yawradius = 0;
	}

	//process verts
	for (i=0 ; i<a->numposes; i++)
		for (j=0; j<a->numverts; j++)
		{
			for (k=0; k<3;k++)
				v[k] = poseverts[i][j].v[k] * pheader->scale[k] + pheader->scale_origin[k];

			for (k=0; k<3;k++)
			{
				loadmodel->mins[k] = min (loadmodel->mins[k], v[k]);
				loadmodel->maxs[k] = max (loadmodel->maxs[k], v[k]);
			}
			dist = v[0] * v[0] + v[1] * v[1];
			if (yawradius < dist)
				yawradius = dist;
			dist += v[2] * v[2];
			if (radius < dist)
				radius = dist;
		}

	//rbounds will be used when entity has nonzero pitch or roll
	radius = sqrt(radius);
	loadmodel->rmins[0] = loadmodel->rmins[1] = loadmodel->rmins[2] = -radius;
	loadmodel->rmaxs[0] = loadmodel->rmaxs[1] = loadmodel->rmaxs[2] = radius;

	//ybounds will be used when entity has nonzero yaw
	yawradius = sqrt(yawradius);
	loadmodel->ymins[0] = loadmodel->ymins[1] = -yawradius;
	loadmodel->ymaxs[0] = loadmodel->ymaxs[1] = yawradius;
	loadmodel->ymins[2] = loadmodel->mins[2];
	loadmodel->ymaxs[2] = loadmodel->maxs[2];
}


/*
=================
Mod_LoadAliasModel
=================
*/
void Mod_LoadAliasModel (model_t *mod, void *buffer)
{
	int					i, j;
	mdl_t				*pinmodel;
	stvert_t			*pinstverts;
	dtriangle_t			*pintriangles;
	int					version, numframes;
	int					size;
	daliasframetype_t	*pframetype;
	daliasskintype_t	*pskintype;
	int					startmark, endmark, total;

	startmark = Hunk_LowMark ();

	pinmodel = (mdl_t *)buffer;
	mod_base = (byte *)buffer;

	version = LittleLong (pinmodel->version);
	if (version != ALIAS_VERSION)
		Host_Error ("Mod_LoadAliasModel: %s has wrong version number (%i should be %i)",
				 mod->name, version, ALIAS_VERSION);

//
// allocate space for a working header, plus all the data except the frames,
// skin and group info
//
	size = 	sizeof (aliashdr_t) 
			+ (LittleLong (pinmodel->numframes) - 1) *
			sizeof (pheader->frames[0]);
	pheader = Hunk_AllocName (size, loadname);
	
	mod->flags = LittleLong (pinmodel->flags);

//
// endian-adjust and copy the data, starting with the alias model header
//
	pheader->boundingradius = LittleFloat (pinmodel->boundingradius);
	pheader->numskins = LittleLong (pinmodel->numskins);
	pheader->skinwidth = LittleLong (pinmodel->skinwidth);
	pheader->skinheight = LittleLong (pinmodel->skinheight);

	if (pheader->skinheight > MAX_LBM_HEIGHT)
		Host_Error ("Mod_LoadAliasModel: model %s has a skin taller than %d (%d)", mod->name,
				   MAX_LBM_HEIGHT, pheader->skinheight);

	if (pheader->skinheight > 480) // old limit warning
		Con_DWarning ("Mod_LoadAliasModel: skin height exceeds standard limit (%d, normal max = %d) in %s\n", pheader->skinheight, 480, mod->name);

	pheader->numverts = LittleLong (pinmodel->numverts);

	if (pheader->numverts <= 0)
		Host_Error ("Mod_LoadAliasModel: model %s has no vertices", mod->name);

	if (pheader->numverts > MAXALIASVERTS)
		Host_Error ("Mod_LoadAliasModel: model %s has too many vertices (%d, max = %d)", mod->name, pheader->numverts, MAXALIASVERTS);

	if (pheader->numverts > 1024 && developer.value > 2) // old limit warning
		Con_DWarning ("Mod_LoadAliasModel: vertices exceeds standard limit (%d, normal max = %d) in %s\n", pheader->numverts, 1024, mod->name);

	pheader->numtris = LittleLong (pinmodel->numtris);

	if (pheader->numtris <= 0)
		Host_Error ("Mod_LoadAliasModel: model %s has no triangles", mod->name);

	if (pheader->numtris > MAXALIASTRIS)
		Host_Error ("Mod_LoadAliasModel: model %s has too many triangles (%d, max = %d)", mod->name, pheader->numtris, MAXALIASTRIS);

	if (pheader->numtris > 2048) // old limit warning
		Con_DWarning ("Mod_LoadAliasModel: triangles exceeds standard limit (%d, normal max = %d) in %s\n", pheader->numtris, 2048, mod->name);

	pheader->numframes = LittleLong (pinmodel->numframes);

	if (pheader->numframes > MAXALIASFRAMES)
	{
		Con_Warning ("Mod_LoadAliasModel: too many frames (%d, max = %d) in %s\n", pheader->numframes, MAXALIASFRAMES, mod->name);
		pheader->numframes = MAXALIASFRAMES; // Cap
	}

	numframes = pheader->numframes;
	if (numframes < 1)
		Host_Error ("Mod_LoadAliasModel: invalid # of frames %d in %s", numframes, mod->name);

	pheader->size = LittleFloat (pinmodel->size) * ALIAS_BASE_SIZE_RATIO;
	mod->synctype = LittleLong (pinmodel->synctype);
	mod->numframes = pheader->numframes;

	for (i=0 ; i<3 ; i++)
	{
		pheader->scale[i] = LittleFloat (pinmodel->scale[i]);
		pheader->scale_origin[i] = LittleFloat (pinmodel->scale_origin[i]);
		pheader->eyeposition[i] = LittleFloat (pinmodel->eyeposition[i]);
	}

//
// load the skins
//
	pskintype = (daliasskintype_t *)&pinmodel[1];
	pskintype = Mod_LoadAllSkins (pheader->numskins, pskintype);

//
// load base s and t vertices
//
	pinstverts = (stvert_t *)pskintype;

	for (i=0 ; i<pheader->numverts ; i++)
	{
		stverts[i].onseam = LittleLong (pinstverts[i].onseam);
		stverts[i].s = LittleLong (pinstverts[i].s);
		stverts[i].t = LittleLong (pinstverts[i].t);
	}

//
// load triangle lists
//
	pintriangles = (dtriangle_t *)&pinstverts[pheader->numverts];

	for (i=0 ; i<pheader->numtris ; i++)
	{
		triangles[i].facesfront = LittleLong (pintriangles[i].facesfront);

		for (j=0 ; j<3 ; j++)
		{
			triangles[i].vertindex[j] =
					LittleLong (pintriangles[i].vertindex[j]);

			if (triangles[i].vertindex[j] < 0 || triangles[i].vertindex[j] >= MAXALIASVERTS)
				Host_Error ("Mod_LoadAliasModel: invalid triangles[%d].vertindex[%d] (%d, max = %d) in %s", i, j, triangles[i].vertindex[j], MAXALIASVERTS, mod->name);
		}
	}

//
// load the frames
//
	posenum = 0;
	pframetype = (daliasframetype_t *)&pintriangles[pheader->numtris];

	for (i=0 ; i<numframes ; i++)
	{
		aliasframetype_t	frametype;
		frametype = LittleLong (pframetype->type);
		if (frametype == ALIAS_SINGLE)
			pframetype = (daliasframetype_t *) Mod_LoadAliasFrame (pframetype + 1, &pheader->frames[i]);
		else
			pframetype = (daliasframetype_t *) Mod_LoadAliasGroup (pframetype + 1, &pheader->frames[i]);
	}

	pheader->numposes = posenum;

	mod->type = mod_alias;
	
    // set up extra flags that aren't in the mdl
    mod->flags &= (0xFF | MF_HOLEY); // only preserve first byte, plus MF_HOLEY

	Mod_CalcAliasBounds (pheader); // calc correct bounds

//
// build the draw lists
//
	R_MakeAliasModelDisplayLists (mod, pheader);

//
// move the complete, relocatable alias model to the cache
//	
	endmark = Hunk_LowMark ();
	total = endmark - startmark;
	
	mod->size = total;

	Cache_Alloc (&mod->cache, total, loadname);
	if (!mod->cache.data)
		return;
	memcpy (mod->cache.data, pheader, total);

	Hunk_FreeToLowMark (startmark);
}

//=============================================================================

/*
=================
Mod_LoadSpriteFrame
=================
*/
void *Mod_LoadSpriteFrame (void *pin, mspriteframe_t **ppframe, int framenum, int bytes)
{
	dspriteframe_t		*pinframe;
	mspriteframe_t		*pspriteframe;
	int					width, height, size, origin[2];
	char				name[64];
	enum srcformat		format;
	unsigned			offset; //johnfitz

	pinframe = (dspriteframe_t *)pin;

	width = LittleLong (pinframe->width);
	height = LittleLong (pinframe->height);
	size = width * height * bytes;

	pspriteframe = Hunk_AllocName (sizeof (mspriteframe_t), loadname);

	memset (pspriteframe, 0, sizeof (mspriteframe_t));

	*ppframe = pspriteframe;

	pspriteframe->width = width;
	pspriteframe->height = height;
	origin[0] = LittleLong (pinframe->origin[0]);
	origin[1] = LittleLong (pinframe->origin[1]);

	pspriteframe->up = origin[1];
	pspriteframe->down = origin[1] - height;
	pspriteframe->left = origin[0];
	pspriteframe->right = width + origin[0];

    //johnfitz -- image might be padded
	pspriteframe->smax = (float)width/(float)TexMgr_PadConditional(width);
	pspriteframe->tmax = (float)height/(float)TexMgr_PadConditional(height);
	//johnfitz

	if (bytes == indexed_bytes)
		format = SRC_INDEXED;
	else
		format = SRC_RGBA;

	sprintf (name, "%s:frame%i", loadmodel->name, framenum);
	offset = (unsigned)(pinframe+1) - (unsigned)mod_base; //johnfitz
	pspriteframe->gltexture = GL_LoadTexture (loadmodel, name, width, height, format, (byte *)(pinframe+1), loadmodel->name, offset, TEXPREF_PAD | TEXPREF_ALPHA | TEXPREF_NOPICMIP);

	return (void *)((byte *)pinframe + sizeof (dspriteframe_t) + size);
}


/*
=================
Mod_LoadSpriteGroup
=================
*/
void *Mod_LoadSpriteGroup (void *pin, mspriteframe_t **ppframe, int framenum, int bytes)
{
	dspritegroup_t		*pingroup;
	mspritegroup_t		*pspritegroup;
	int					i, numframes;
	dspriteinterval_t	*pin_intervals;
	float				*poutintervals;
	void				*ptemp;

	pingroup = (dspritegroup_t *)pin;

	numframes = LittleLong (pingroup->numframes);

	pspritegroup = Hunk_AllocName (sizeof (mspritegroup_t) +
				(numframes - 1) * sizeof (pspritegroup->frames[0]), loadname);

	pspritegroup->numframes = numframes;

	*ppframe = (mspriteframe_t *)pspritegroup;

	pin_intervals = (dspriteinterval_t *)(pingroup + 1);

	poutintervals = Hunk_AllocName (numframes * sizeof (float), loadname);

	pspritegroup->intervals = poutintervals;

	for (i=0 ; i<numframes ; i++)
	{
		*poutintervals = LittleFloat (pin_intervals->interval);
		if (*poutintervals <= 0.0)
			Host_Error ("Mod_LoadSpriteGroup: interval %f <= 0 in %s", *poutintervals, loadmodel->name);

		poutintervals++;
		pin_intervals++;
	}

	ptemp = (void *)pin_intervals;

	for (i=0 ; i<numframes ; i++)
	{
		ptemp = Mod_LoadSpriteFrame (ptemp, &pspritegroup->frames[i], framenum * 100 + i, bytes);
	}

	return ptemp;
}


/*
=================
Mod_LoadSpriteModel
=================
*/
void Mod_LoadSpriteModel (model_t *mod, void *buffer)
{
	int					i;
	int					version;
	dsprite_t			*pin;
	msprite_t			*psprite;
	int					numframes;
	int					size;
	dspriteframetype_t	*pframetype;
	int			bytes;

	pin = (dsprite_t *)buffer;
	mod_base = (byte *)buffer;

	version = LittleLong (pin->version);
	if (version != SPRITE_VERSION && version != SPRITE32_VERSION) // Nehahra 32-bit sprites
		Host_Error ("Mod_LoadSpriteModel: %s has wrong version number (%i should be %i or %i)", mod->name, version, SPRITE_VERSION, SPRITE32_VERSION);

	bytes = indexed_bytes;
	if (version == SPRITE32_VERSION)
		bytes = rgba_bytes;

	numframes = LittleLong (pin->numframes);

	size = sizeof (msprite_t) +	(numframes - 1) * sizeof (psprite->frames);

	psprite = Hunk_AllocName (size, loadname);

	mod->cache.data = psprite;

	psprite->type = LittleLong (pin->type);
	psprite->maxwidth = LittleLong (pin->width);
	psprite->maxheight = LittleLong (pin->height);
	psprite->beamlength = LittleFloat (pin->beamlength);
	mod->synctype = LittleLong (pin->synctype);
	psprite->numframes = numframes;

	mod->mins[0] = mod->mins[1] = -psprite->maxwidth/2;
	mod->maxs[0] = mod->maxs[1] = psprite->maxwidth/2;
	mod->mins[2] = -psprite->maxheight/2;
	mod->maxs[2] = psprite->maxheight/2;
	
//
// load the frames
//
	if (numframes < 1)
		Host_Error ("Mod_LoadSpriteModel: invalid # of frames %d in %s", numframes, mod->name);

	mod->numframes = numframes;

	pframetype = (dspriteframetype_t *)(pin + 1);

	for (i=0 ; i<numframes ; i++)
	{
		spriteframetype_t	frametype;

		frametype = LittleLong (pframetype->type);
		psprite->frames[i].type = frametype;

		if (frametype == SPR_SINGLE)
		{
			pframetype = (dspriteframetype_t *)
					Mod_LoadSpriteFrame (pframetype + 1,
										 &psprite->frames[i].frameptr, i, bytes);
		}
		else
		{
			pframetype = (dspriteframetype_t *)
					Mod_LoadSpriteGroup (pframetype + 1,
										 &psprite->frames[i].frameptr, i, bytes);
		}
	}

	mod->type = mod_sprite;
}

//=============================================================================

/*
================
Mod_Print
================
*/
void Mod_Print (void)
{
	int	i, total;
	model_t	*mod;

	Con_SafePrintf ("Cached models:\n");
	total = 0;
	for (i=0, mod=mod_known ; i < mod_numknown ; i++, mod++)
	{
		total += mod->size;
		
		Con_SafePrintf ("(%8p) ", mod->cache.data);
		
		if (mod->type == mod_alias)
			Con_SafePrintf ("%6.1fk", mod->size / (float)1024);
		else
			Con_SafePrintf ("%6s ", "");
		
		Con_SafePrintf (" : %s\n", mod->name);
	}

	Con_SafePrintf ("\n%d models (%.1f megabyte)\n", mod_numknown, total / (float)(1024 * 1024));
}