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quakespasm/Quake/gl_model.c
Ozkan Sezer 02b953e993 use C11 _Generic macros for q_min, q_max and CLAMP, if available. 
.. if not, then use GCC expression macros for them, if available.
2022-06-12 14:32:28 +03:00

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/*
Copyright (C) 1996-2001 Id Software, Inc.
Copyright (C) 2002-2009 John Fitzgibbons and others
Copyright (C) 2010-2014 QuakeSpasm developers
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// models.c -- model loading and caching
// models are the only shared resource between a client and server running
// on the same machine.
#include "quakedef.h"
qmodel_t *loadmodel;
char loadname[32]; // for hunk tags
void Mod_LoadSpriteModel (qmodel_t *mod, void *buffer);
void Mod_LoadBrushModel (qmodel_t *mod, void *buffer);
void Mod_LoadAliasModel (qmodel_t *mod, void *buffer);
qmodel_t *Mod_LoadModel (qmodel_t *mod, qboolean crash);
cvar_t external_ents = {"external_ents", "1", CVAR_ARCHIVE};
cvar_t external_vis = {"external_vis", "1", CVAR_ARCHIVE};
static byte *mod_novis;
static int mod_novis_capacity;
static byte *mod_decompressed;
static int mod_decompressed_capacity;
#define MAX_MOD_KNOWN 2048 /*johnfitz -- was 512 */
qmodel_t mod_known[MAX_MOD_KNOWN];
int mod_numknown;
texture_t *r_notexture_mip; //johnfitz -- moved here from r_main.c
texture_t *r_notexture_mip2; //johnfitz -- used for non-lightmapped surfs with a missing texture
/*
===============
Mod_Init
===============
*/
void Mod_Init (void)
{
Cvar_RegisterVariable (&gl_subdivide_size);
Cvar_RegisterVariable (&external_vis);
Cvar_RegisterVariable (&external_ents);
//johnfitz -- create notexture miptex
r_notexture_mip = (texture_t *) Hunk_AllocName (sizeof(texture_t), "r_notexture_mip");
strcpy (r_notexture_mip->name, "notexture");
r_notexture_mip->height = r_notexture_mip->width = 32;
r_notexture_mip2 = (texture_t *) Hunk_AllocName (sizeof(texture_t), "r_notexture_mip2");
strcpy (r_notexture_mip2->name, "notexture2");
r_notexture_mip2->height = r_notexture_mip2->width = 32;
//johnfitz
}
/*
===============
Mod_Extradata
Caches the data if needed
===============
*/
void *Mod_Extradata (qmodel_t *mod)
{
void *r;
r = Cache_Check (&mod->cache);
if (r)
return r;
Mod_LoadModel (mod, true);
if (!mod->cache.data)
Sys_Error ("Mod_Extradata: caching failed");
return mod->cache.data;
}
/*
===============
Mod_PointInLeaf
===============
*/
mleaf_t *Mod_PointInLeaf (vec3_t p, qmodel_t *model)
{
mnode_t *node;
float d;
mplane_t *plane;
if (!model || !model->nodes)
Sys_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, qmodel_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)
Sys_Error ("Mod_DecompressVis: realloc() failed on %d bytes", mod_decompressed_capacity);
}
out = mod_decompressed;
outend = mod_decompressed + row;
if (!in)
{ // 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;
}
byte *Mod_LeafPVS (mleaf_t *leaf, qmodel_t *model)
{
if (leaf == model->leafs)
return Mod_NoVisPVS (model);
return Mod_DecompressVis (leaf->compressed_vis, model);
}
byte *Mod_NoVisPVS (qmodel_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)
Sys_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;
qmodel_t *mod;
for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++)
if (mod->type != mod_alias)
{
mod->needload = true;
TexMgr_FreeTexturesForOwner (mod); //johnfitz
}
}
void Mod_ResetAll (void)
{
int i;
qmodel_t *mod;
//ericw -- free alias model VBOs
GLMesh_DeleteVertexBuffers ();
for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++)
{
if (!mod->needload) //otherwise Mod_ClearAll() did it already
TexMgr_FreeTexturesForOwner (mod);
memset(mod, 0, sizeof(qmodel_t));
}
mod_numknown = 0;
}
/*
==================
Mod_FindName
==================
*/
qmodel_t *Mod_FindName (const char *name)
{
int i;
qmodel_t *mod;
if (!name[0])
Sys_Error ("Mod_FindName: NULL name"); //johnfitz -- was "Mod_ForName"
//
// 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)
Sys_Error ("mod_numknown == MAX_MOD_KNOWN");
q_strlcpy (mod->name, name, MAX_QPATH);
mod->needload = true;
mod_numknown++;
}
return mod;
}
/*
==================
Mod_TouchModel
==================
*/
void Mod_TouchModel (const char *name)
{
qmodel_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
==================
*/
qmodel_t *Mod_LoadModel (qmodel_t *mod, qboolean crash)
{
byte *buf;
byte stackbuf[1024]; // avoid dirtying the cache heap
int mod_type;
if (!mod->needload)
{
if (mod->type == mod_alias)
{
if (Cache_Check (&mod->cache))
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 = COM_LoadStackFile (mod->name, stackbuf, sizeof(stackbuf), & mod->path_id);
if (!buf)
{
if (crash)
Host_Error ("Mod_LoadModel: %s not found", mod->name); //johnfitz -- was "Mod_NumForName"
return NULL;
}
//
// allocate a new model
//
COM_FileBase (mod->name, loadname, sizeof(loadname));
loadmodel = mod;
//
// fill it in
//
// call the apropriate loader
mod->needload = false;
mod_type = (buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24));
switch (mod_type)
{
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
==================
*/
qmodel_t *Mod_ForName (const char *name, qboolean crash)
{
qmodel_t *mod;
mod = Mod_FindName (name);
return Mod_LoadModel (mod, crash);
}
/*
===============================================================================
BRUSHMODEL LOADING
===============================================================================
*/
byte *mod_base;
/*
=================
Mod_CheckFullbrights -- johnfitz
=================
*/
qboolean Mod_CheckFullbrights (byte *pixels, int count)
{
int i;
for (i = 0; i < count; i++)
if (*pixels++ > 223)
return true;
return false;
}
/*
=================
Mod_CheckAnimTextureArrayQ64
Quake64 bsp
Check if we have any missing textures in the array
=================
*/
qboolean Mod_CheckAnimTextureArrayQ64(texture_t *anims[], int numTex)
{
int i;
for (i = 0; i < numTex; i++)
{
if (!anims[i])
return false;
}
return true;
}
/*
=================
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;
//johnfitz -- more variables
char texturename[64];
int nummiptex;
src_offset_t offset;
int mark, fwidth, fheight;
char filename[MAX_OSPATH], filename2[MAX_OSPATH], mapname[MAX_OSPATH];
byte *data;
extern byte *hunk_base;
//johnfitz
//johnfitz -- don't return early if no textures; still need to create dummy texture
if (!l->filelen)
{
Con_Printf ("Mod_LoadTextures: no textures in bsp file\n");
nummiptex = 0;
m = NULL; // avoid bogus compiler warning
}
else
{
m = (dmiptexlump_t *)(mod_base + l->fileofs);
m->nummiptex = LittleLong (m->nummiptex);
nummiptex = m->nummiptex;
}
//johnfitz
loadmodel->numtextures = nummiptex + 2; //johnfitz -- need 2 dummy texture chains for missing textures
loadmodel->textures = (texture_t **) Hunk_AllocName (loadmodel->numtextures * sizeof(*loadmodel->textures) , loadname);
for (i=0 ; i<nummiptex ; i++)
{
m->dataofs[i] = LittleLong(m->dataofs[i]);
if (m->dataofs[i] == -1)
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]);
if ( (mt->width & 15) || (mt->height & 15) )
{
if (loadmodel->bspversion != BSPVERSION_QUAKE64)
Con_Warning ("Texture %s (%d x %d) is not 16 aligned\n", mt->name, mt->width, mt->height);
}
pixels = mt->width*mt->height; // only copy the first mip, the rest are auto-generated
tx = (texture_t *) Hunk_AllocName (sizeof(texture_t) +pixels, loadname );
loadmodel->textures[i] = tx;
memcpy (tx->name, mt->name, sizeof(tx->name));
tx->width = mt->width;
tx->height = mt->height;
// the pixels immediately follow the structures
// ericw -- check for pixels extending past the end of the lump.
// appears in the wild; e.g. jam2_tronyn.bsp (func_mapjam2),
// kellbase1.bsp (quoth), and can lead to a segfault if we read past
// the end of the .bsp file buffer
if (((byte*)(mt+1) + pixels) > (mod_base + l->fileofs + l->filelen))
{
Con_DPrintf("Texture %s extends past end of lump\n", mt->name);
pixels = q_max(0L, (long)((mod_base + l->fileofs + l->filelen) - (byte*)(mt+1)));
}
tx->update_warp = false; //johnfitz
tx->warpimage = NULL; //johnfitz
tx->fullbright = NULL; //johnfitz
tx->shift = 0; // Q64 only
if (loadmodel->bspversion != BSPVERSION_QUAKE64)
{
memcpy ( tx+1, mt+1, pixels);
}
else
{ // Q64 bsp
miptex64_t *mt64 = (miptex64_t *)mt;
tx->shift = LittleLong (mt64->shift);
memcpy ( tx+1, mt64+1, pixels);
}
//johnfitz -- lots of changes
if (!isDedicated) //no texture uploading for dedicated server
{
if (!q_strncasecmp(tx->name,"sky",3)) //sky texture //also note -- was Q_strncmp, changed to match qbsp
{
if (loadmodel->bspversion == BSPVERSION_QUAKE64)
Sky_LoadTextureQ64 (tx);
else
Sky_LoadTexture (tx);
}
else if (tx->name[0] == '*') //warping texture
{
//external textures -- first look in "textures/mapname/" then look in "textures/"
mark = Hunk_LowMark();
COM_StripExtension (loadmodel->name + 5, mapname, sizeof(mapname));
q_snprintf (filename, sizeof(filename), "textures/%s/#%s", mapname, tx->name+1); //this also replaces the '*' with a '#'
data = Image_LoadImage (filename, &fwidth, &fheight);
if (!data)
{
q_snprintf (filename, sizeof(filename), "textures/#%s", tx->name+1);
data = Image_LoadImage (filename, &fwidth, &fheight);
}
//now load whatever we found
if (data) //load external image
{
q_strlcpy (texturename, filename, sizeof(texturename));
tx->gltexture = TexMgr_LoadImage (loadmodel, texturename, fwidth, fheight,
SRC_RGBA, data, filename, 0, TEXPREF_NONE);
}
else //use the texture from the bsp file
{
q_snprintf (texturename, sizeof(texturename), "%s:%s", loadmodel->name, tx->name);
offset = (src_offset_t)(mt+1) - (src_offset_t)mod_base;
tx->gltexture = TexMgr_LoadImage (loadmodel, texturename, tx->width, tx->height,
SRC_INDEXED, (byte *)(tx+1), loadmodel->name, offset, TEXPREF_NONE);
}
//now create the warpimage, using dummy data from the hunk to create the initial image
Hunk_Alloc (gl_warpimagesize*gl_warpimagesize*4); //make sure hunk is big enough so we don't reach an illegal address
Hunk_FreeToLowMark (mark);
q_snprintf (texturename, sizeof(texturename), "%s_warp", texturename);
tx->warpimage = TexMgr_LoadImage (loadmodel, texturename, gl_warpimagesize,
gl_warpimagesize, SRC_RGBA, hunk_base, "", (src_offset_t)hunk_base, TEXPREF_NOPICMIP | TEXPREF_WARPIMAGE);
tx->update_warp = true;
}
else //regular texture
{
// ericw -- fence textures
int extraflags;
extraflags = 0;
if (tx->name[0] == '{')
extraflags |= TEXPREF_ALPHA;
// ericw
//external textures -- first look in "textures/mapname/" then look in "textures/"
mark = Hunk_LowMark ();
COM_StripExtension (loadmodel->name + 5, mapname, sizeof(mapname));
q_snprintf (filename, sizeof(filename), "textures/%s/%s", mapname, tx->name);
data = Image_LoadImage (filename, &fwidth, &fheight);
if (!data)
{
q_snprintf (filename, sizeof(filename), "textures/%s", tx->name);
data = Image_LoadImage (filename, &fwidth, &fheight);
}
//now load whatever we found
if (data) //load external image
{
tx->gltexture = TexMgr_LoadImage (loadmodel, filename, fwidth, fheight,
SRC_RGBA, data, filename, 0, TEXPREF_MIPMAP | extraflags );
//now try to load glow/luma image from the same place
Hunk_FreeToLowMark (mark);
q_snprintf (filename2, sizeof(filename2), "%s_glow", filename);
data = Image_LoadImage (filename2, &fwidth, &fheight);
if (!data)
{
q_snprintf (filename2, sizeof(filename2), "%s_luma", filename);
data = Image_LoadImage (filename2, &fwidth, &fheight);
}
if (data)
tx->fullbright = TexMgr_LoadImage (loadmodel, filename2, fwidth, fheight,
SRC_RGBA, data, filename, 0, TEXPREF_MIPMAP | extraflags );
}
else //use the texture from the bsp file
{
q_snprintf (texturename, sizeof(texturename), "%s:%s", loadmodel->name, tx->name);
offset = (src_offset_t)(mt+1) - (src_offset_t)mod_base;
if (Mod_CheckFullbrights ((byte *)(tx+1), pixels))
{
tx->gltexture = TexMgr_LoadImage (loadmodel, texturename, tx->width, tx->height,
SRC_INDEXED, (byte *)(tx+1), loadmodel->name, offset, TEXPREF_MIPMAP | TEXPREF_NOBRIGHT | extraflags);
q_snprintf (texturename, sizeof(texturename), "%s:%s_glow", loadmodel->name, tx->name);
tx->fullbright = TexMgr_LoadImage (loadmodel, texturename, tx->width, tx->height,
SRC_INDEXED, (byte *)(tx+1), loadmodel->name, offset, TEXPREF_MIPMAP | TEXPREF_FULLBRIGHT | extraflags);
}
else
{
tx->gltexture = TexMgr_LoadImage (loadmodel, texturename, tx->width, tx->height,
SRC_INDEXED, (byte *)(tx+1), loadmodel->name, offset, TEXPREF_MIPMAP | extraflags);
}
}
Hunk_FreeToLowMark (mark);
}
}
//johnfitz
}
//johnfitz -- last 2 slots in array should be filled with dummy textures
loadmodel->textures[loadmodel->numtextures-2] = r_notexture_mip; //for lightmapped surfs
loadmodel->textures[loadmodel->numtextures-1] = r_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
Sys_Error ("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
Sys_Error ("Bad animating texture %s", tx->name);
}
if (loadmodel->bspversion == BSPVERSION_QUAKE64 && !Mod_CheckAnimTextureArrayQ64(anims, maxanim))
continue; // Just pretend this is a normal texture
#define ANIM_CYCLE 2
// link them all together
for (j=0 ; j<maxanim ; j++)
{
tx2 = anims[j];
if (!tx2)
Sys_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)
Sys_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 -- johnfitz -- replaced with lit support code via lordhavoc
=================
*/
void Mod_LoadLighting (lump_t *l)
{
int i, mark;
byte *in, *out, *data;
byte d, q64_b0, q64_b1;
char litfilename[MAX_OSPATH];
unsigned int path_id;
loadmodel->lightdata = NULL;
// LordHavoc: check for a .lit file
q_strlcpy(litfilename, loadmodel->name, sizeof(litfilename));
COM_StripExtension(litfilename, litfilename, sizeof(litfilename));
q_strlcat(litfilename, ".lit", sizeof(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)
{
Hunk_FreeToLowMark(mark);
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)
{
if (8+l->filelen*3 == com_filesize)
{
Con_DPrintf2("%s loaded\n", litfilename);
loadmodel->lightdata = data + 8;
return;
}
Hunk_FreeToLowMark(mark);
Con_Printf("Outdated .lit file (%s should be %u bytes, not %u)\n", litfilename, 8+l->filelen*3, com_filesize);
}
else
{
Hunk_FreeToLowMark(mark);
Con_Printf("Unknown .lit file version (%d)\n", i);
}
}
else
{
Hunk_FreeToLowMark(mark);
Con_Printf("Corrupt .lit file (old version?), ignoring\n");
}
}
// LordHavoc: no .lit found, expand the white lighting data to color
if (!l->filelen)
return;
// Quake64 bsp lighmap data
if (loadmodel->bspversion == BSPVERSION_QUAKE64)
{
// RGB lightmap samples are packed in 16bits.
// RRRRR GGGGG BBBBBB
loadmodel->lightdata = (byte *) Hunk_AllocName ( (l->filelen / 2)*3, litfilename);
in = mod_base + l->fileofs;
out = loadmodel->lightdata;
for (i = 0;i < (l->filelen / 2) ;i++)
{
q64_b0 = *in++;
q64_b1 = *in++;
*out++ = q64_b0 & 0xf8;/* 0b11111000 */
*out++ = ((q64_b0 & 0x07) << 5) + ((q64_b1 & 0xc0) >> 5);/* 0b00000111, 0b11000000 */
*out++ = (q64_b1 & 0x3f) << 2;/* 0b00111111 */
}
return;
}
loadmodel->lightdata = (byte *) 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;
}
}
/*
=================
Mod_LoadVisibility
=================
*/
void Mod_LoadVisibility (lump_t *l)
{
loadmodel->viswarn = false;
if (!l->filelen)
{
loadmodel->visdata = NULL;
return;
}
loadmodel->visdata = (byte *) Hunk_AllocName ( l->filelen, loadname);
memcpy (loadmodel->visdata, mod_base + l->fileofs, l->filelen);
}
/*
=================
Mod_LoadEntities
=================
*/
void Mod_LoadEntities (lump_t *l)
{
char basemapname[MAX_QPATH];
char entfilename[MAX_QPATH];
char *ents;
int mark;
unsigned int path_id;
unsigned int crc = 0;
if (! external_ents.value)
goto _load_embedded;
mark = Hunk_LowMark();
if (l->filelen > 0) {
crc = CRC_Block(mod_base + l->fileofs, l->filelen - 1);
}
q_strlcpy(basemapname, loadmodel->name, sizeof(basemapname));
COM_StripExtension(basemapname, basemapname, sizeof(basemapname));
q_snprintf(entfilename, sizeof(entfilename), "%s@%04x.ent", basemapname, crc);
Con_DPrintf2("trying to load %s\n", entfilename);
ents = (char *) COM_LoadHunkFile (entfilename, &path_id);
if (!ents)
{
q_snprintf(entfilename, sizeof(entfilename), "%s.ent", basemapname);
Con_DPrintf2("trying to load %s\n", entfilename);
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)
{
Hunk_FreeToLowMark(mark);
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;
}
}
_load_embedded:
if (!l->filelen)
{
loadmodel->entities = NULL;
return;
}
loadmodel->entities = (char *) 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 = (dvertex_t *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*in);
out = (mvertex_t *) 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_LoadEdges
=================
*/
void Mod_LoadEdges (lump_t *l, int bsp2)
{
medge_t *out;
int i, count;
if (bsp2)
{
dledge_t *in = (dledge_t *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*in);
out = (medge_t *) Hunk_AllocName ( (count + 1) * 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]);
}
}
else
{
dsedge_t *in = (dsedge_t *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*in);
out = (medge_t *) Hunk_AllocName ( (count + 1) * 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_LoadTexinfo
=================
*/
void Mod_LoadTexinfo (lump_t *l)
{
texinfo_t *in;
mtexinfo_t *out;
int i, j, count, miptex;
int missing = 0; //johnfitz
in = (texinfo_t *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*in);
out = (mtexinfo_t *) 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]);
}
miptex = LittleLong (in->miptex);
out->flags = LittleLong (in->flags);
//johnfitz -- rewrote this section
if (miptex >= loadmodel->numtextures-1 || !loadmodel->textures[miptex])
{
if (out->flags & TEX_SPECIAL)
out->texture = loadmodel->textures[loadmodel->numtextures-1];
else
out->texture = loadmodel->textures[loadmodel->numtextures-2];
out->flags |= TEX_MISSING;
missing++;
}
else
{
out->texture = loadmodel->textures[miptex];
}
//johnfitz
}
//johnfitz: report missing textures
if (missing && loadmodel->numtextures > 1)
Con_Printf ("Mod_LoadTexinfo: %d texture(s) missing from BSP file\n", missing);
//johnfitz
}
/*
================
CalcSurfaceExtents
Fills in s->texturemins[] and s->extents[]
================
*/
void 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] = FLT_MAX;
maxs[0] = maxs[1] = -FLT_MAX;
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] > 2000) //johnfitz -- was 512 in glquake, 256 in winquake
Sys_Error ("Bad surface extents");
}
}
/*
================
Mod_PolyForUnlitSurface -- johnfitz -- creates polys for unlightmapped surfaces (sky and water)
TODO: merge this into BuildSurfaceDisplayList?
================
*/
void Mod_PolyForUnlitSurface (msurface_t *fa)
{
vec3_t verts[64];
int numverts, i, lindex;
float *vec;
glpoly_t *poly;
float texscale;
if (fa->flags & (SURF_DRAWTURB | SURF_DRAWSKY))
texscale = (1.0/128.0); //warp animation repeats every 128
else
texscale = (1.0/32.0); //to match r_notexture_mip
// convert edges back to a normal polygon
numverts = 0;
for (i=0 ; i<fa->numedges ; i++)
{
lindex = loadmodel->surfedges[fa->firstedge + i];
if (lindex > 0)
vec = loadmodel->vertexes[loadmodel->edges[lindex].v[0]].position;
else
vec = loadmodel->vertexes[loadmodel->edges[-lindex].v[1]].position;
VectorCopy (vec, verts[numverts]);
numverts++;
}
//create the poly
poly = (glpoly_t *) Hunk_Alloc (sizeof(glpoly_t) + (numverts-4) * VERTEXSIZE*sizeof(float));
poly->next = NULL;
fa->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, fa->texinfo->vecs[0]) * texscale;
poly->verts[i][4] = DotProduct(vec, fa->texinfo->vecs[1]) * texscale;
}
}
/*
=================
Mod_CalcSurfaceBounds -- johnfitz -- 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] = FLT_MAX;
s->maxs[0] = s->maxs[1] = s->maxs[2] = -FLT_MAX;
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];
}
}
/*
=================
Mod_LoadFaces
=================
*/
void Mod_LoadFaces (lump_t *l, qboolean bsp2)
{
dsface_t *ins;
dlface_t *inl;
msurface_t *out;
int i, count, surfnum, lofs;
int planenum, side, texinfon;
if (bsp2)
{
ins = NULL;
inl = (dlface_t *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*inl))
Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*inl);
}
else
{
ins = (dsface_t *)(mod_base + l->fileofs);
inl = NULL;
if (l->filelen % sizeof(*ins))
Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*ins);
}
out = (msurface_t *)Hunk_AllocName ( count*sizeof(*out), loadname);
//johnfitz -- warn mappers about exceeding old limits
if (count > 32767 && !bsp2)
Con_DWarning ("%i faces exceeds standard limit of 32767.\n", count);
//johnfitz
loadmodel->surfaces = out;
loadmodel->numsurfaces = count;
for (surfnum=0 ; surfnum<count ; surfnum++, out++)
{
if (bsp2)
{
out->firstedge = LittleLong(inl->firstedge);
out->numedges = LittleLong(inl->numedges);
planenum = LittleLong(inl->planenum);
side = LittleLong(inl->side);
texinfon = LittleLong (inl->texinfo);
for (i=0 ; i<MAXLIGHTMAPS ; i++)
out->styles[i] = inl->styles[i];
lofs = LittleLong(inl->lightofs);
inl++;
}
else
{
out->firstedge = LittleLong(ins->firstedge);
out->numedges = LittleShort(ins->numedges);
planenum = LittleShort(ins->planenum);
side = LittleShort(ins->side);
texinfon = LittleShort (ins->texinfo);
for (i=0 ; i<MAXLIGHTMAPS ; i++)
out->styles[i] = ins->styles[i];
lofs = LittleLong(ins->lightofs);
ins++;
}
out->flags = 0;
if (side)
out->flags |= SURF_PLANEBACK;
out->plane = loadmodel->planes + planenum;
out->texinfo = loadmodel->texinfo + texinfon;
CalcSurfaceExtents (out);
Mod_CalcSurfaceBounds (out); //johnfitz -- for per-surface frustum culling
// lighting info
if (loadmodel->bspversion == BSPVERSION_QUAKE64)
lofs /= 2; // Q64 samples are 16bits instead 8 in normal Quake
if (lofs == -1)
out->samples = NULL;
else
out->samples = loadmodel->lightdata + (lofs * 3); //johnfitz -- lit support via lordhavoc (was "+ i")
//johnfitz -- this section rewritten
if (!q_strncasecmp(out->texinfo->texture->name,"sky",3)) // sky surface //also note -- was Q_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 (!strncmp (out->texinfo->texture->name, "*lava", 5))
out->flags |= SURF_DRAWLAVA;
else if (!strncmp (out->texinfo->texture->name, "*slime", 6))
out->flags |= SURF_DRAWSLIME;
else if (!strncmp (out->texinfo->texture->name, "*tele", 5))
out->flags |= SURF_DRAWTELE;
else out->flags |= SURF_DRAWWATER;
Mod_PolyForUnlitSurface (out);
GL_SubdivideSurface (out);
}
else if (out->texinfo->texture->name[0] == '{') // ericw -- fence textures
{
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);
}
}
//johnfitz
}
}
/*
=================
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
=================
*/
void Mod_LoadNodes_S (lump_t *l)
{
int i, j, count, p;
dsnode_t *in;
mnode_t *out;
in = (dsnode_t *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*in);
out = (mnode_t *) Hunk_AllocName ( count*sizeof(*out), loadname);
//johnfitz -- warn mappers about exceeding old limits
if (count > 32767)
Con_DWarning ("%i nodes exceeds standard limit of 32767.\n", count);
//johnfitz
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 = (unsigned short)LittleShort (in->firstface); //johnfitz -- explicit cast as unsigned short
out->numsurfaces = (unsigned short)LittleShort (in->numfaces); //johnfitz -- explicit cast as unsigned short
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_Printf("Mod_LoadNodes: 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
}
}
//johnfitz
}
}
}
void Mod_LoadNodes_L1 (lump_t *l)
{
int i, j, count, p;
dl1node_t *in;
mnode_t *out;
in = (dl1node_t *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
Sys_Error ("Mod_LoadNodes: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*in);
out = (mnode_t *)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->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 = LittleLong (in->firstface); //johnfitz -- explicit cast as unsigned short
out->numsurfaces = LittleLong (in->numfaces); //johnfitz -- explicit cast as unsigned short
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 intentionally, -1 is leaf 0
if (p >= 0 && p < loadmodel->numleafs)
out->children[j] = (mnode_t *)(loadmodel->leafs + p);
else
{
Con_Printf("Mod_LoadNodes: 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
}
}
//johnfitz
}
}
}
void Mod_LoadNodes_L2 (lump_t *l)
{
int i, j, count, p;
dl2node_t *in;
mnode_t *out;
in = (dl2node_t *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
Sys_Error ("Mod_LoadNodes: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*in);
out = (mnode_t *)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->minmaxs[j] = LittleFloat (in->mins[j]);
out->minmaxs[3+j] = LittleFloat (in->maxs[j]);
}
p = LittleLong(in->planenum);
out->plane = loadmodel->planes + p;
out->firstsurface = LittleLong (in->firstface); //johnfitz -- explicit cast as unsigned short
out->numsurfaces = LittleLong (in->numfaces); //johnfitz -- explicit cast as unsigned short
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 intentionally, -1 is leaf 0
if (p >= 0 && p < loadmodel->numleafs)
out->children[j] = (mnode_t *)(loadmodel->leafs + p);
else
{
Con_Printf("Mod_LoadNodes: 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
}
}
//johnfitz
}
}
}
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_SetParent (loadmodel->nodes, NULL); // sets nodes and leafs
}
void Mod_ProcessLeafs_S (dsleaf_t *in, int filelen)
{
mleaf_t *out;
int i, j, count, p;
if (filelen % sizeof(*in))
Sys_Error ("Mod_ProcessLeafs: funny lump size in %s", loadmodel->name);
count = filelen / sizeof(*in);
out = (mleaf_t *) Hunk_AllocName ( count*sizeof(*out), loadname);
//johnfitz
if (count > 32767)
Host_Error ("Mod_LoadLeafs: %i leafs exceeds limit of 32767.", count);
//johnfitz
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->firstmarksurface = loadmodel->marksurfaces + (unsigned short)LittleShort(in->firstmarksurface); //johnfitz -- unsigned short
out->nummarksurfaces = (unsigned short)LittleShort(in->nummarksurfaces); //johnfitz -- unsigned short
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];
//johnfitz -- removed code to mark surfaces as SURF_UNDERWATER
}
}
void Mod_ProcessLeafs_L1 (dl1leaf_t *in, int filelen)
{
mleaf_t *out;
int i, j, count, p;
if (filelen % sizeof(*in))
Sys_Error ("Mod_ProcessLeafs: 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->minmaxs[j] = LittleShort (in->mins[j]);
out->minmaxs[3+j] = LittleShort (in->maxs[j]);
}
p = LittleLong(in->contents);
out->contents = p;
out->firstmarksurface = loadmodel->marksurfaces + LittleLong(in->firstmarksurface); //johnfitz -- unsigned short
out->nummarksurfaces = LittleLong(in->nummarksurfaces); //johnfitz -- unsigned short
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];
//johnfitz -- removed code to mark surfaces as SURF_UNDERWATER
}
}
void Mod_ProcessLeafs_L2 (dl2leaf_t *in, int filelen)
{
mleaf_t *out;
int i, j, count, p;
if (filelen % sizeof(*in))
Sys_Error ("Mod_ProcessLeafs: 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->minmaxs[j] = LittleFloat (in->mins[j]);
out->minmaxs[3+j] = LittleFloat (in->maxs[j]);
}
p = LittleLong(in->contents);
out->contents = p;
out->firstmarksurface = loadmodel->marksurfaces + LittleLong(in->firstmarksurface); //johnfitz -- unsigned short
out->nummarksurfaces = LittleLong(in->nummarksurfaces); //johnfitz -- unsigned short
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];
//johnfitz -- removed code to mark surfaces as SURF_UNDERWATER
}
}
/*
=================
Mod_LoadLeafs
=================
*/
void Mod_LoadLeafs (lump_t *l, int bsp2)
{
void *in = (void *)(mod_base + l->fileofs);
if (bsp2 == 2)
Mod_ProcessLeafs_L2 ((dl2leaf_t *)in, l->filelen);
else if (bsp2)
Mod_ProcessLeafs_L1 ((dl1leaf_t *)in, l->filelen);
else
Mod_ProcessLeafs_S ((dsleaf_t *) in, l->filelen);
}
/*
=================
Mod_LoadClipnodes
=================
*/
void Mod_LoadClipnodes (lump_t *l, qboolean bsp2)
{
dsclipnode_t *ins;
dlclipnode_t *inl;
mclipnode_t *out; //johnfitz -- was dclipnode_t
int i, count;
hull_t *hull;
if (bsp2)
{
ins = NULL;
inl = (dlclipnode_t *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*inl))
Sys_Error ("Mod_LoadClipnodes: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*inl);
}
else
{
ins = (dsclipnode_t *)(mod_base + l->fileofs);
inl = NULL;
if (l->filelen % sizeof(*ins))
Sys_Error ("Mod_LoadClipnodes: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*ins);
}
out = (mclipnode_t *) Hunk_AllocName ( count*sizeof(*out), loadname);
//johnfitz -- warn about exceeding old limits
if (count > 32767 && !bsp2)
Con_DWarning ("%i clipnodes exceeds standard limit of 32767.\n", count);
//johnfitz
loadmodel->clipnodes = out;
loadmodel->numclipnodes = count;
hull = &loadmodel->hulls[1];
hull->clipnodes = out;
hull->firstclipnode = 0;
hull->lastclipnode = count-1;
hull->planes = loadmodel->planes;
hull->clip_mins[0] = -16;
hull->clip_mins[1] = -16;
hull->clip_mins[2] = -24;
hull->clip_maxs[0] = 16;
hull->clip_maxs[1] = 16;
hull->clip_maxs[2] = 32;
hull = &loadmodel->hulls[2];
hull->clipnodes = out;
hull->firstclipnode = 0;
hull->lastclipnode = count-1;
hull->planes = loadmodel->planes;
hull->clip_mins[0] = -32;
hull->clip_mins[1] = -32;
hull->clip_mins[2] = -24;
hull->clip_maxs[0] = 32;
hull->clip_maxs[1] = 32;
hull->clip_maxs[2] = 64;
if (bsp2)
{
for (i=0 ; i<count ; i++, out++, inl++)
{
out->planenum = LittleLong(inl->planenum);
//johnfitz -- bounds check
if (out->planenum < 0 || out->planenum >= loadmodel->numplanes)
Host_Error ("Mod_LoadClipnodes: planenum out of bounds");
//johnfitz
out->children[0] = LittleLong(inl->children[0]);
out->children[1] = LittleLong(inl->children[1]);
//Spike: FIXME: bounds check
}
}
else
{
for (i=0 ; i<count ; i++, out++, ins++)
{
out->planenum = LittleLong(ins->planenum);
//johnfitz -- bounds check
if (out->planenum < 0 || out->planenum >= loadmodel->numplanes)
Host_Error ("Mod_LoadClipnodes: planenum out of bounds");
//johnfitz
//johnfitz -- support clipnodes > 32k
out->children[0] = (unsigned short)LittleShort(ins->children[0]);
out->children[1] = (unsigned short)LittleShort(ins->children[1]);
if (out->children[0] >= count)
out->children[0] -= 65536;
if (out->children[1] >= count)
out->children[1] -= 65536;
//johnfitz
}
}
}
/*
=================
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 = (mclipnode_t *) 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
=================
*/
void Mod_LoadMarksurfaces (lump_t *l, int bsp2)
{
int i, j, count;
msurface_t **out;
if (bsp2)
{
unsigned int *in = (unsigned int *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
Host_Error ("Mod_LoadMarksurfaces: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*in);
out = (msurface_t **)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: bad surface number");
out[i] = loadmodel->surfaces + j;
}
}
else
{
short *in = (short *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
Host_Error ("Mod_LoadMarksurfaces: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*in);
out = (msurface_t **)Hunk_AllocName ( count*sizeof(*out), loadname);
loadmodel->marksurfaces = out;
loadmodel->nummarksurfaces = count;
//johnfitz -- warn mappers about exceeding old limits
if (count > 32767)
Con_DWarning ("%i marksurfaces exceeds standard limit of 32767.\n", count);
//johnfitz
for (i=0 ; i<count ; i++)
{
j = (unsigned short)LittleShort(in[i]); //johnfitz -- explicit cast as unsigned short
if (j >= loadmodel->numsurfaces)
Sys_Error ("Mod_LoadMarksurfaces: bad surface number");
out[i] = loadmodel->surfaces + j;
}
}
}
/*
=================
Mod_LoadSurfedges
=================
*/
void Mod_LoadSurfedges (lump_t *l)
{
int i, count;
int *in, *out;
in = (int *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*in);
out = (int *) 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 = (dplane_t *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*in);
out = (mplane_t *) 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_LoadSubmodels
=================
*/
void Mod_LoadSubmodels (lump_t *l)
{
dmodel_t *in;
dmodel_t *out;
int i, j, count;
in = (dmodel_t *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
count = l->filelen / sizeof(*in);
out = (dmodel_t *) 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);
}
// johnfitz -- check world visleafs -- adapted from bjp
out = loadmodel->submodels;
if (out->visleafs > 8192)
Con_DWarning ("%i visleafs exceeds standard limit of 8192.\n", out->visleafs);
//johnfitz
}
/*
=================
Mod_BoundsFromClipNode -- johnfitz
update the model's clipmins and clipmaxs based on each node's plane.
This works because of the way brushes are expanded in hull generation.
Each brush will include all six axial planes, which bound that brush.
Therefore, the bounding box of the hull can be constructed entirely
from axial planes found in the clipnodes for that hull.
=================
*/
void Mod_BoundsFromClipNode (qmodel_t *mod, int hull, int nodenum)
{
mplane_t *plane;
mclipnode_t *node;
if (nodenum < 0)
return; //hit a leafnode
node = &mod->clipnodes[nodenum];
plane = mod->hulls[hull].planes + node->planenum;
switch (plane->type)
{
case PLANE_X:
if (plane->signbits == 1)
mod->clipmins[0] = q_min(mod->clipmins[0], -plane->dist - mod->hulls[hull].clip_mins[0]);
else
mod->clipmaxs[0] = q_max(mod->clipmaxs[0], plane->dist - mod->hulls[hull].clip_maxs[0]);
break;
case PLANE_Y:
if (plane->signbits == 2)
mod->clipmins[1] = q_min(mod->clipmins[1], -plane->dist - mod->hulls[hull].clip_mins[1]);
else
mod->clipmaxs[1] = q_max(mod->clipmaxs[1], plane->dist - mod->hulls[hull].clip_maxs[1]);
break;
case PLANE_Z:
if (plane->signbits == 4)
mod->clipmins[2] = q_min(mod->clipmins[2], -plane->dist - mod->hulls[hull].clip_mins[2]);
else
mod->clipmaxs[2] = q_max(mod->clipmaxs[2], plane->dist - mod->hulls[hull].clip_maxs[2]);
break;
default:
//skip nonaxial planes; don't need them
break;
}
Mod_BoundsFromClipNode (mod, hull, node->children[0]);
Mod_BoundsFromClipNode (mod, hull, node->children[1]);
}
/* EXTERNAL VIS FILE SUPPORT:
*/
typedef struct vispatch_s
{
char mapname[32];
int filelen; // length of data after header (VIS+Leafs)
} vispatch_t;
#define VISPATCH_HEADER_LEN 36
static FILE *Mod_FindVisibilityExternal(void)
{
vispatch_t header;
char visfilename[MAX_QPATH];
const char* shortname;
unsigned int path_id;
FILE *f;
long pos;
size_t r;
q_snprintf(visfilename, sizeof(visfilename), "maps/%s.vis", loadname);
if (COM_FOpenFile(visfilename, &f, &path_id) < 0)
{
Con_DPrintf("%s not found, trying ", visfilename);
q_snprintf(visfilename, sizeof(visfilename), "%s.vis", COM_SkipPath(com_gamedir));
Con_DPrintf("%s\n", visfilename);
if (COM_FOpenFile(visfilename, &f, &path_id) < 0)
{
Con_DPrintf("external vis not found\n");
return NULL;
}
}
if (path_id < loadmodel->path_id)
{
fclose(f);
Con_DPrintf("ignored %s from a gamedir with lower priority\n", visfilename);
return NULL;
}
Con_DPrintf("Found external VIS %s\n", visfilename);
shortname = COM_SkipPath(loadmodel->name);
pos = 0;
while ((r = fread(&header, 1, VISPATCH_HEADER_LEN, f)) == VISPATCH_HEADER_LEN)
{
header.filelen = LittleLong(header.filelen);
if (header.filelen <= 0) { /* bad entry -- don't trust the rest. */
fclose(f);
return NULL;
}
if (!q_strcasecmp(header.mapname, shortname))
break;
pos += header.filelen + VISPATCH_HEADER_LEN;
fseek(f, pos, SEEK_SET);
}
if (r != VISPATCH_HEADER_LEN) {
fclose(f);
Con_DPrintf("%s not found in %s\n", shortname, visfilename);
return NULL;
}
return f;
}
static byte *Mod_LoadVisibilityExternal(FILE* f)
{
int filelen;
byte* visdata;
filelen = 0;
fread(&filelen, 1, 4, f);
filelen = LittleLong(filelen);
if (filelen <= 0) return NULL;
Con_DPrintf("...%d bytes visibility data\n", filelen);
visdata = (byte *) Hunk_AllocName(filelen, "EXT_VIS");
if (!fread(visdata, filelen, 1, f))
return NULL;
return visdata;
}
static void Mod_LoadLeafsExternal(FILE* f)
{
int filelen;
void* in;
filelen = 0;
fread(&filelen, 1, 4, f);
filelen = LittleLong(filelen);
if (filelen <= 0) return;
Con_DPrintf("...%d bytes leaf data\n", filelen);
in = Hunk_AllocName(filelen, "EXT_LEAF");
if (!fread(in, filelen, 1, f))
return;
Mod_ProcessLeafs_S((dsleaf_t *)in, filelen);
}
/*
=================
Mod_LoadBrushModel
=================
*/
void Mod_LoadBrushModel (qmodel_t *mod, void *buffer)
{
int i, j;
int bsp2;
dheader_t *header;
dmodel_t *bm;
float radius; //johnfitz
loadmodel->type = mod_brush;
header = (dheader_t *)buffer;
mod->bspversion = LittleLong (header->version);
switch(mod->bspversion)
{
case BSPVERSION:
bsp2 = false;
break;
case BSP2VERSION_2PSB:
bsp2 = 1; //first iteration
break;
case BSP2VERSION_BSP2:
bsp2 = 2; //sanitised revision
break;
case BSPVERSION_QUAKE64:
bsp2 = false;
break;
default:
Sys_Error ("Mod_LoadBrushModel: %s has unsupported version number (%i)", mod->name, mod->bspversion);
break;
}
// swap all the lumps
mod_base = (byte *)header;
for (i = 0; i < (int) 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);
if (mod->bspversion == BSPVERSION && external_vis.value && sv.modelname[0] && !q_strcasecmp(loadname, sv.name))
{
FILE* fvis;
Con_DPrintf("trying to open external vis file\n");
fvis = Mod_FindVisibilityExternal();
if (fvis) {
int mark = Hunk_LowMark();
loadmodel->leafs = NULL;
loadmodel->numleafs = 0;
Con_DPrintf("found valid external .vis file for map\n");
loadmodel->visdata = Mod_LoadVisibilityExternal(fvis);
if (loadmodel->visdata) {
Mod_LoadLeafsExternal(fvis);
}
fclose(fvis);
if (loadmodel->visdata && loadmodel->leafs && loadmodel->numleafs) {
goto visdone;
}
Hunk_FreeToLowMark(mark);
Con_DPrintf("External VIS data failed, using standard vis.\n");
}
}
Mod_LoadVisibility (&header->lumps[LUMP_VISIBILITY]);
Mod_LoadLeafs (&header->lumps[LUMP_LEAFS], bsp2);
visdone:
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)
//
// johnfitz -- 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);
//johnfitz -- 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;
//johnfitz
//johnfitz -- correct physics cullboxes so that outlying clip brushes on doors and stuff are handled right
if (i > 0 || strcmp(mod->name, sv.modelname) != 0) //skip submodel 0 of sv.worldmodel, which is the actual world
{
// start with the hull0 bounds
VectorCopy (mod->maxs, mod->clipmaxs);
VectorCopy (mod->mins, mod->clipmins);
// process hull1 (we don't need to process hull2 becuase there's
// no such thing as a brush that appears in hull2 but not hull1)
//Mod_BoundsFromClipNode (mod, 1, mod->hulls[1].firstclipnode); // (disabled for now becuase it fucks up on rotating models)
}
//johnfitz
mod->numleafs = bm->visleafs;
if (i < mod->numsubmodels-1)
{ // duplicate the basic information
char name[12];
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;
byte **player_8bit_texels_tbl;
byte *player_8bit_texels;
/*
=================
Mod_LoadAliasFrame
=================
*/
void * Mod_LoadAliasFrame (void * pin, maliasframedesc_t *frame)
{
trivertx_t *pinframe;
int i;
daliasframe_t *pdaliasframe;
if (posenum >= MAXALIASFRAMES)
Sys_Error ("posenum >= MAXALIASFRAMES");
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);
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) Sys_Error ("posenum >= MAXALIASFRAMES");
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;
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))
{
//printf( "not filling skin from %d to %d\n", fillcolor, filledcolor );
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, groupskins;
char name[MAX_QPATH];
byte *skin, *texels;
daliasskingroup_t *pinskingroup;
daliasskininterval_t *pinskinintervals;
char fbr_mask_name[MAX_QPATH]; //johnfitz -- added for fullbright support
src_offset_t offset; //johnfitz
unsigned int texflags = TEXPREF_PAD;
skin = (byte *)(pskintype + 1);
if (numskins < 1 || numskins > MAX_SKINS)
Sys_Error ("Mod_LoadAliasModel: Invalid # of skins: %d", numskins);
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
texels = (byte *) Hunk_AllocName(size, loadname);
pheader->texels[i] = texels - (byte *)pheader;
memcpy (texels, (byte *)(pskintype + 1), size);
//johnfitz -- rewritten
q_snprintf (name, sizeof(name), "%s:frame%i", loadmodel->name, i);
offset = (src_offset_t)(pskintype+1) - (src_offset_t)mod_base;
if (Mod_CheckFullbrights ((byte *)(pskintype+1), size))
{
pheader->gltextures[i][0] = TexMgr_LoadImage (loadmodel, name, pheader->skinwidth, pheader->skinheight,
SRC_INDEXED, (byte *)(pskintype+1), loadmodel->name, offset, texflags | TEXPREF_NOBRIGHT);
q_snprintf (fbr_mask_name, sizeof(fbr_mask_name), "%s:frame%i_glow", loadmodel->name, i);
pheader->fbtextures[i][0] = TexMgr_LoadImage (loadmodel, fbr_mask_name, pheader->skinwidth, pheader->skinheight,
SRC_INDEXED, (byte *)(pskintype+1), loadmodel->name, offset, texflags | TEXPREF_FULLBRIGHT);
}
else
{
pheader->gltextures[i][0] = TexMgr_LoadImage (loadmodel, name, pheader->skinwidth, pheader->skinheight,
SRC_INDEXED, (byte *)(pskintype+1), loadmodel->name, offset, texflags);
pheader->fbtextures[i][0] = NULL;
}
pheader->gltextures[i][3] = pheader->gltextures[i][2] = pheader->gltextures[i][1] = pheader->gltextures[i][0];
pheader->fbtextures[i][3] = pheader->fbtextures[i][2] = pheader->fbtextures[i][1] = pheader->fbtextures[i][0];
//johnfitz
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 = (daliasskintype_t *)(pinskinintervals + groupskins);
for (j=0 ; j<groupskins ; j++)
{
Mod_FloodFillSkin( skin, pheader->skinwidth, pheader->skinheight );
if (j == 0) {
texels = (byte *) Hunk_AllocName(size, loadname);
pheader->texels[i] = texels - (byte *)pheader;
memcpy (texels, (byte *)(pskintype), size);
}
//johnfitz -- rewritten
q_snprintf (name, sizeof(name), "%s:frame%i_%i", loadmodel->name, i,j);
offset = (src_offset_t)(pskintype) - (src_offset_t)mod_base; //johnfitz
if (Mod_CheckFullbrights ((byte *)(pskintype), size))
{
pheader->gltextures[i][j&3] = TexMgr_LoadImage (loadmodel, name, pheader->skinwidth, pheader->skinheight,
SRC_INDEXED, (byte *)(pskintype), loadmodel->name, offset, texflags | TEXPREF_NOBRIGHT);
q_snprintf (fbr_mask_name, sizeof(fbr_mask_name), "%s:frame%i_%i_glow", loadmodel->name, i,j);
pheader->fbtextures[i][j&3] = TexMgr_LoadImage (loadmodel, fbr_mask_name, pheader->skinwidth, pheader->skinheight,
SRC_INDEXED, (byte *)(pskintype), loadmodel->name, offset, texflags | TEXPREF_FULLBRIGHT);
}
else
{
pheader->gltextures[i][j&3] = TexMgr_LoadImage (loadmodel, name, pheader->skinwidth, pheader->skinheight,
SRC_INDEXED, (byte *)(pskintype), loadmodel->name, offset, texflags);
pheader->fbtextures[i][j&3] = NULL;
}
//johnfitz
pskintype = (daliasskintype_t *)((byte *)(pskintype) + size);
}
k = j;
for (/**/; j < 4; j++)
pheader->gltextures[i][j&3] = pheader->gltextures[i][j - k];
}
}
return (void *)pskintype;
}
//=========================================================================
/*
=================
Mod_CalcAliasBounds -- johnfitz -- 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] = FLT_MAX;
loadmodel->maxs[i] = loadmodel->ymaxs[i] = loadmodel->rmaxs[i] = -FLT_MAX;
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] = q_min(loadmodel->mins[k], v[k]);
loadmodel->maxs[k] = q_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];
}
static qboolean
nameInList(const char *list, const char *name)
{
const char *s;
char tmp[MAX_QPATH];
int i;
s = list;
while (*s)
{
// make a copy until the next comma or end of string
i = 0;
while (*s && *s != ',')
{
if (i < MAX_QPATH - 1)
tmp[i++] = *s;
s++;
}
tmp[i] = '\0';
//compare it to the model name
if (!strcmp(name, tmp))
{
return true;
}
//search forwards to the next comma or end of string
while (*s && *s == ',')
s++;
}
return false;
}
/*
=================
Mod_SetExtraFlags -- johnfitz -- set up extra flags that aren't in the mdl
=================
*/
void Mod_SetExtraFlags (qmodel_t *mod)
{
extern cvar_t r_nolerp_list, r_noshadow_list;
if (!mod || mod->type != mod_alias)
return;
mod->flags &= (0xFF | MF_HOLEY); //only preserve first byte, plus MF_HOLEY
// nolerp flag
if (nameInList(r_nolerp_list.string, mod->name))
mod->flags |= MOD_NOLERP;
// noshadow flag
if (nameInList(r_noshadow_list.string, mod->name))
mod->flags |= MOD_NOSHADOW;
// fullbright hack (TODO: make this a cvar list)
if (!strcmp (mod->name, "progs/flame2.mdl") ||
!strcmp (mod->name, "progs/flame.mdl") ||
!strcmp (mod->name, "progs/boss.mdl"))
mod->flags |= MOD_FBRIGHTHACK;
}
/*
=================
Mod_LoadAliasModel
=================
*/
void Mod_LoadAliasModel (qmodel_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 start, end, total;
start = Hunk_LowMark ();
pinmodel = (mdl_t *)buffer;
mod_base = (byte *)buffer; //johnfitz
version = LittleLong (pinmodel->version);
if (version != ALIAS_VERSION)
Sys_Error ("%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 = (aliashdr_t *) 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)
Con_DWarning ("model %s has a skin taller than %d", mod->name,
MAX_LBM_HEIGHT);
pheader->numverts = LittleLong (pinmodel->numverts);
if (pheader->numverts <= 0)
Sys_Error ("model %s has no vertices", mod->name);
if (pheader->numverts > MAXALIASVERTS)
Sys_Error ("model %s has too many vertices (%d; max = %d)", mod->name, pheader->numverts, MAXALIASVERTS);
pheader->numtris = LittleLong (pinmodel->numtris);
if (pheader->numtris <= 0)
Sys_Error ("model %s has no triangles", mod->name);
if (pheader->numtris > MAXALIASTRIS)
Sys_Error ("model %s has too many triangles (%d; max = %d)", mod->name, pheader->numtris, MAXALIASTRIS);
pheader->numframes = LittleLong (pinmodel->numframes);
numframes = pheader->numframes;
if (numframes < 1)
Sys_Error ("Mod_LoadAliasModel: Invalid # of frames: %d", numframes);
pheader->size = LittleFloat (pinmodel->size) * ALIAS_BASE_SIZE_RATIO;
mod->synctype = (synctype_t) 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 = (daliasskintype_t *) 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]);
}
}
//
// load the frames
//
posenum = 0;
pframetype = (daliasframetype_t *)&pintriangles[pheader->numtris];
for (i=0 ; i<numframes ; i++)
{
aliasframetype_t frametype;
frametype = (aliasframetype_t) 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;
Mod_SetExtraFlags (mod); //johnfitz
Mod_CalcAliasBounds (pheader); //johnfitz
//
// build the draw lists
//
GL_MakeAliasModelDisplayLists (mod, pheader);
//
// move the complete, relocatable alias model to the cache
//
end = Hunk_LowMark ();
total = end - start;
Cache_Alloc (&mod->cache, total, loadname);
if (!mod->cache.data)
return;
memcpy (mod->cache.data, pheader, total);
Hunk_FreeToLowMark (start);
}
//=============================================================================
/*
=================
Mod_LoadSpriteFrame
=================
*/
void * Mod_LoadSpriteFrame (void * pin, mspriteframe_t **ppframe, int framenum)
{
dspriteframe_t *pinframe;
mspriteframe_t *pspriteframe;
int width, height, size, origin[2];
char name[64];
src_offset_t offset; //johnfitz
pinframe = (dspriteframe_t *)pin;
width = LittleLong (pinframe->width);
height = LittleLong (pinframe->height);
size = width * height;
pspriteframe = (mspriteframe_t *) Hunk_AllocName (sizeof (mspriteframe_t),loadname);
*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
q_snprintf (name, sizeof(name), "%s:frame%i", loadmodel->name, framenum);
offset = (src_offset_t)(pinframe+1) - (src_offset_t)mod_base; //johnfitz
pspriteframe->gltexture =
TexMgr_LoadImage (loadmodel, name, width, height, SRC_INDEXED,
(byte *)(pinframe + 1), loadmodel->name, offset,
TEXPREF_PAD | TEXPREF_ALPHA | TEXPREF_NOPICMIP); //johnfitz -- TexMgr
return (void *)((byte *)pinframe + sizeof (dspriteframe_t) + size);
}
/*
=================
Mod_LoadSpriteGroup
=================
*/
void * Mod_LoadSpriteGroup (void * pin, mspriteframe_t **ppframe, int framenum)
{
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 = (mspritegroup_t *) 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 = (float *) Hunk_AllocName (numframes * sizeof (float), loadname);
pspritegroup->intervals = poutintervals;
for (i=0 ; i<numframes ; i++)
{
*poutintervals = LittleFloat (pin_intervals->interval);
if (*poutintervals <= 0.0)
Sys_Error ("Mod_LoadSpriteGroup: interval<=0");
poutintervals++;
pin_intervals++;
}
ptemp = (void *)pin_intervals;
for (i=0 ; i<numframes ; i++)
{
ptemp = Mod_LoadSpriteFrame (ptemp, &pspritegroup->frames[i], framenum * 100 + i);
}
return ptemp;
}
/*
=================
Mod_LoadSpriteModel
=================
*/
void Mod_LoadSpriteModel (qmodel_t *mod, void *buffer)
{
int i;
int version;
dsprite_t *pin;
msprite_t *psprite;
int numframes;
int size;
dspriteframetype_t *pframetype;
pin = (dsprite_t *)buffer;
mod_base = (byte *)buffer; //johnfitz
version = LittleLong (pin->version);
if (version != SPRITE_VERSION)
Sys_Error ("%s has wrong version number "
"(%i should be %i)", mod->name, version, SPRITE_VERSION);
numframes = LittleLong (pin->numframes);
size = sizeof (msprite_t) + (numframes - 1) * sizeof (psprite->frames);
psprite = (msprite_t *) 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 = (synctype_t) 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)
Sys_Error ("Mod_LoadSpriteModel: Invalid # of frames: %d", numframes);
mod->numframes = numframes;
pframetype = (dspriteframetype_t *)(pin + 1);
for (i=0 ; i<numframes ; i++)
{
spriteframetype_t frametype;
frametype = (spriteframetype_t) LittleLong (pframetype->type);
psprite->frames[i].type = frametype;
if (frametype == SPR_SINGLE)
{
pframetype = (dspriteframetype_t *)
Mod_LoadSpriteFrame (pframetype + 1, &psprite->frames[i].frameptr, i);
}
else
{
pframetype = (dspriteframetype_t *)
Mod_LoadSpriteGroup (pframetype + 1, &psprite->frames[i].frameptr, i);
}
}
mod->type = mod_sprite;
}
//=============================================================================
/*
================
Mod_Print
================
*/
void Mod_Print (void)
{
int i;
qmodel_t *mod;
Con_SafePrintf ("Cached models:\n"); //johnfitz -- safeprint instead of print
for (i=0, mod=mod_known ; i < mod_numknown ; i++, mod++)
{
Con_SafePrintf ("%8p : %s\n", mod->cache.data, mod->name); //johnfitz -- safeprint instead of print
}
Con_Printf ("%i models\n",mod_numknown); //johnfitz -- print the total too
}
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