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gl_model.c
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/*
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.
$Id: gl_model.c,v 1.41 2007-10-07 08:06:33 tonik Exp $
*/
// 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"
#include "gl_model.h"
#include "gl_local.h"
#include "teamplay.h"
#include "rulesets.h"
#include "wad.h"
#include "crc.h"
#include "fmod.h"
#include "utils.h"
//VULT MODELS
void Mod_AddModelFlags(model_t *mod);
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, int filesize);
void Mod_LoadAliasModel (model_t *mod, void *buffer, int filesize);
model_t *Mod_LoadModel (model_t *mod, qbool crash);
void *Mod_BSPX_FindLump(char *lumpname, int *plumpsize);
byte mod_novis[MAX_MAP_LEAFS/8];
#define MAX_MOD_KNOWN 512
model_t mod_known[MAX_MOD_KNOWN];
int mod_numknown;
void Mod_Init (void) {
memset (mod_novis, 0xff, sizeof(mod_novis));
}
//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)
Sys_Error ("Mod_Extradata: caching failed");
return mod->cache.data;
}
mleaf_t *Mod_PointInLeaf (vec3_t p, model_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 = PlaneDiff(p, plane);
node = (d > 0) ? node->children[0] : node->children[1];
}
return NULL; // never reached
}
byte *Mod_DecompressVis (byte *in, model_t *model) {
static byte decompressed[MAX_MAP_LEAFS / 8];
int c, row;
byte *out;
row = (model->numleafs + 7) >> 3;
out = decompressed;
if (!in) { // no vis info, so make all visible
while (row) {
*out++ = 0xff;
row--;
}
return decompressed;
}
do {
if (*in) {
*out++ = *in++;
continue;
}
c = in[1];
in += 2;
while (c) {
*out++ = 0;
c--;
}
} while (out - decompressed < row);
return decompressed;
}
byte *Mod_LeafPVS (mleaf_t *leaf, model_t *model) {
if (leaf == model->leafs)
return mod_novis;
return Mod_DecompressVis (leaf->compressed_vis, model);
}
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->type != mod_alias3 && mod->type != mod_sprite)
mod->needload = true;
}
model_t *Mod_FindName (char *name) {
int i;
model_t *mod;
if (!name[0])
Sys_Error ("Mod_ForName: 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)
Sys_Error ("mod_numknown == MAX_MOD_KNOWN");
strlcpy (mod->name, name, sizeof (mod->name));
mod->needload = true;
mod_numknown++;
}
return mod;
}
void Mod_TouchModel (char *name) {
model_t *mod;
mod = Mod_FindName (name);
if (!mod->needload) {
if (mod->type == mod_alias || mod->type == mod_alias3 || mod->type == mod_sprite)
Cache_Check (&mod->cache);
}
}
// this is callback from VID after a vid_restart
void Mod_TouchModels (void)
{
int i;
model_t *mod;
if (cls.state != ca_active)
return; // seems we are not loaded models yet, so no need to do anything
for (i = 1; i < MAX_MODELS; i++)
{
if (!cl.model_name[i][0])
break;
mod = cl.model_precache[i];
if (mod->type == mod_alias || mod->type == mod_alias3 || mod->type == mod_sprite)
Mod_Extradata (mod);
}
}
//Loads a model into the cache
model_t *Mod_LoadModel (model_t *mod, qbool crash) {
void *d;
unsigned *buf;
int namelen;
int filesize;
if (!mod->needload) {
if (mod->type == mod_alias || mod->type == mod_alias3 || mod->type == mod_sprite) {
d = Cache_Check (&mod->cache);
if (d)
return mod;
} else {
return mod; // not cached at all
}
}
namelen = strlen (mod->name);
buf = NULL;
if (namelen >= 4 && (!strcmp (mod->name + namelen - 4, ".mdl") ||
(namelen >= 9 && mod->name[5] == 'b' && mod->name[6] == '_' && !strcmp (mod->name + namelen - 4, ".bsp"))))
{
char newname[MAX_QPATH];
COM_StripExtension (mod->name, newname);
COM_DefaultExtension (newname, ".md3");
buf = (unsigned *) FS_LoadTempFile (newname, &filesize);
}
// load the file
if (!buf)
buf = (unsigned *) FS_LoadTempFile (mod->name, &filesize);
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;
FMod_CheckModel(mod->name, buf, filesize);
// call the apropriate loader
mod->needload = false;
switch (LittleLong(*((unsigned *) buf))) {
case IDPOLYHEADER:
Mod_LoadAliasModel (mod, buf, filesize);
break;
case MD3_IDENT:
Mod_LoadAlias3Model (mod, buf, filesize);
break;
case IDSPRITEHEADER:
Mod_LoadSpriteModel (mod, buf);
break;
default:
Mod_LoadBrushModel (mod, buf, filesize);
break;
}
return mod;
}
//Loads in a model for the given name
model_t *Mod_ForName (char *name, qbool crash) {
model_t *mod;
mod = Mod_FindName (name);
return Mod_LoadModel (mod, crash);
}
qbool Img_HasFullbrights (byte *pixels, int size) {
int i;
for (i = 0; i < size; i++)
if (pixels[i] >= 224)
return true;
return false;
}
/*
===============================================================================
BRUSHMODEL LOADING
===============================================================================
*/
#define ISTURBTEX(name) ((loadmodel->bspversion == Q1_BSPVERSION && (name)[0] == '*') || \
(loadmodel->bspversion == HL_BSPVERSION && (name)[0] == '!'))
#define ISSKYTEX(name) ((name)[0] == 's' && (name)[1] == 'k' && (name)[2] == 'y')
#define ISALPHATEX(name) (loadmodel->bspversion == HL_BSPVERSION && (name)[0] == '{')
byte *mod_base;
static struct bspx_header_s *bspx_header;
/* Some id maps have textures with identical names but different looks.
We hardcode a list of names, checksums and alternative names to provide a way
for external texture packs to differentiate them. */
static struct {
int md4;
char *origname, *newname;
} translate_names[] = {
// { 0x8a010dc0, "sky4", "sky4" },
{ 0xde688b77, "sky4", "sky1" },
{ 0x45d110ec, "metal5_2", "metal5_2_arc" },
{ 0x0d275f87, "metal5_2", "metal5_2_x" },
{ 0xf8e27da8, "metal5_4", "metal5_4_arc" },
{ 0xa301c52e, "metal5_4", "metal5_4_double" },
{ 0xfaa8bf77, "metal5_8", "metal5_8_back" },
{ 0x88792923, "metal5_8", "metal5_8_rune" },
{ 0xfe4f9f5a, "plat_top1", "plat_top1_bolt" },
{ 0x9ac3fccf, "plat_top1", "plat_top1_cable" },
{ 0, NULL, NULL },
};
static char *TranslateTextureName (texture_t *tx)
{
int i;
int checksum = 0;
qbool checksum_done = false;
for (i = 0; translate_names[i].origname; i++) {
if (strcmp(tx->name, translate_names[i].origname))
continue;
if (!checksum_done) {
checksum = Com_BlockChecksum(tx+1, tx->width*tx->height);
checksum_done = true;
//Com_DPrintf ("checksum(\"%s\") = 0x%x\n", tx->name, checksum);
}
if (translate_names[i].md4 == checksum) {
//Com_DPrintf ("Translating %s --> %s\n", tx->name, translate_names[i].newname);
assert (strlen(translate_names[i].newname) < sizeof(tx->name));
return translate_names[i].newname;
}
}
return NULL;
}
int Mod_LoadExternalTexture(texture_t *tx, int mode, int brighten_flag) {
char *name, *altname, *mapname, *groupname;
if (loadmodel->isworldmodel) {
if (!gl_externalTextures_world.value)
return 0;
} else {
if (!gl_externalTextures_bmodels.value)
return 0;
}
name = tx->name;
altname = TranslateTextureName (tx);
mapname = TP_MapName();
groupname = TP_GetMapGroupName(mapname, NULL);
if (loadmodel->isworldmodel) {
if ((tx->gl_texturenum = GL_LoadTextureImage (va("textures/%s/%s", mapname, name), name, 0, 0, mode | brighten_flag))) {
if (!ISTURBTEX(name))
tx->fb_texturenum = GL_LoadTextureImage (va("textures/%s/%s_luma", mapname, name), va("@fb_%s", name), 0, 0, mode | TEX_LUMA);
} else {
if (groupname) {
if ((tx->gl_texturenum = GL_LoadTextureImage (va("textures/%s/%s", groupname, name), name, 0, 0, mode | brighten_flag))) {
if (!ISTURBTEX(name))
tx->fb_texturenum = GL_LoadTextureImage (va("textures/%s/%s_luma", groupname, name), va("@fb_%s", name), 0, 0, mode | TEX_LUMA);
}
}
}
} else {
if ((tx->gl_texturenum = GL_LoadTextureImage (va("textures/bmodels/%s", name), name, 0, 0, mode | brighten_flag))) {
if (!ISTURBTEX(name))
tx->fb_texturenum = GL_LoadTextureImage (va("textures/bmodels/%s_luma", name), va("@fb_%s", name), 0, 0, mode | TEX_LUMA);
}
}
if (!tx->gl_texturenum && altname) {
if ((tx->gl_texturenum = GL_LoadTextureImage (va("textures/%s", altname), altname, 0, 0, mode | brighten_flag))) {
if (!ISTURBTEX(name))
tx->fb_texturenum = GL_LoadTextureImage (va("textures/%s_luma", altname), va("@fb_%s", altname), 0, 0, mode | TEX_LUMA);
}
}
if (!tx->gl_texturenum) {
if ((tx->gl_texturenum = GL_LoadTextureImage (va("textures/%s", name), name, 0, 0, mode | brighten_flag))) {
if (!ISTURBTEX(name))
tx->fb_texturenum = GL_LoadTextureImage (va("textures/%s_luma", name), va("@fb_%s", name), 0, 0, mode | TEX_LUMA);
}
}
if (tx->fb_texturenum)
tx->isLumaTexture = true;
return tx->gl_texturenum;
}
static qbool Mod_LoadExternalSkyTexture (texture_t *tx)
{
char *altname, *mapname;
char solidname[MAX_QPATH], alphaname[MAX_QPATH];
char altsolidname[MAX_QPATH], altalphaname[MAX_QPATH];
byte alphapixel = 255;
extern int solidskytexture, alphaskytexture;
if (!gl_externalTextures_world.value)
return false;
altname = TranslateTextureName (tx);
mapname = Cvar_String("mapname");
snprintf (solidname, sizeof(solidname), "%s_solid", tx->name);
snprintf (alphaname, sizeof(alphaname), "%s_alpha", tx->name);
solidskytexture = GL_LoadTextureImage (va("textures/%s/%s", mapname, solidname), solidname, 0, 0, 0);
if (!solidskytexture && altname) {
snprintf (altsolidname, sizeof(altsolidname), "%s_solid", altname);
solidskytexture = GL_LoadTextureImage (va("textures/%s", altsolidname), altsolidname, 0, 0, 0);
}
if (!solidskytexture)
solidskytexture = GL_LoadTextureImage (va("textures/%s", solidname), solidname, 0, 0, 0);
if (!solidskytexture)
return false;
alphaskytexture = GL_LoadTextureImage (va("textures/%s/%s", mapname, alphaname), alphaname, 0, 0, TEX_ALPHA);
if (!alphaskytexture && altname) {
snprintf (altalphaname, sizeof(altalphaname), "%s_alpha", altname);
alphaskytexture = GL_LoadTextureImage (va("textures/%s", altalphaname), altalphaname, 0, 0, TEX_ALPHA);
}
if (!alphaskytexture)
alphaskytexture = GL_LoadTextureImage (va("textures/%s", alphaname), alphaname, 0, 0, TEX_ALPHA);
if (!alphaskytexture) {
// Load a texture consisting of a single transparent pixel
alphaskytexture = GL_LoadTexture (alphaname, 1, 1, &alphapixel, TEX_ALPHA, 1);
}
return true;
}
void R_LoadBrushModelTextures (model_t *m)
{
char *texname;
texture_t *tx;
int i, texmode, noscale_flag, alpha_flag, brighten_flag, mipTexLevel;
byte *data;
int width, height;
loadmodel = m;
// try load simple textures
memset(loadmodel->simpletexture, 0, sizeof(loadmodel->simpletexture));
loadmodel->simpletexture[0] = Mod_LoadSimpleTexture(loadmodel, 0);
if (!loadmodel->textures)
return;
// Com_Printf("lm %d %s\n", lightmode, loadmodel->name);
for (i = 0; i < loadmodel->numtextures; i++)
{
tx = loadmodel->textures[i];
if (!tx)
continue;
if (tx->loaded)
continue; // seems alredy loaded
tx->gl_texturenum = tx->fb_texturenum = 0;
// Com_Printf("tx %s\n", tx->name);
if (loadmodel->isworldmodel && loadmodel->bspversion != HL_BSPVERSION && ISSKYTEX(tx->name)) {
if (!Mod_LoadExternalSkyTexture (tx))
R_InitSky (tx);
tx->loaded = true;
continue; // mark as loaded
}
noscale_flag = 0;
noscale_flag = (!gl_scaleModelTextures.value && !loadmodel->isworldmodel) ? TEX_NOSCALE : noscale_flag;
noscale_flag = (!gl_scaleTurbTextures.value && ISTURBTEX(tx->name)) ? TEX_NOSCALE : noscale_flag;
mipTexLevel = noscale_flag ? 0 : gl_miptexLevel.value;
texmode = TEX_MIPMAP | noscale_flag;
brighten_flag = (!ISTURBTEX(tx->name) && (lightmode == 2)) ? TEX_BRIGHTEN : 0;
if (Mod_LoadExternalTexture(tx, texmode, brighten_flag)) {
tx->loaded = true; // mark as loaded
continue;
}
if (loadmodel->bspversion == HL_BSPVERSION) {
if ((data = WAD3_LoadTexture(tx))) {
fs_netpath[0] = 0;
alpha_flag = ISALPHATEX(tx->name) ? TEX_ALPHA : 0;
tx->gl_texturenum = GL_LoadTexturePixels (data, tx->name, tx->width, tx->height, texmode | alpha_flag);
Q_free(data);
tx->loaded = true; // mark as loaded
continue;
}
tx->offsets[0] = 0; // this mean use r_notexture_mip, any better solution?
}
if (tx->offsets[0]) {
texname = tx->name;
width = tx->width >> mipTexLevel;
height = tx->height >> mipTexLevel;
data = (byte *) tx + tx->offsets[mipTexLevel];
} else {
texname = r_notexture_mip->name;
width = r_notexture_mip->width >> mipTexLevel;
height = r_notexture_mip->height >> mipTexLevel;
data = (byte *) r_notexture_mip + r_notexture_mip->offsets[mipTexLevel];
}
tx->gl_texturenum = GL_LoadTexture (texname, width, height, data, texmode | brighten_flag, 1);
if (!ISTURBTEX(tx->name) && Img_HasFullbrights(data, width * height))
tx->fb_texturenum = GL_LoadTexture (va("@fb_%s", texname), width, height, data, texmode | TEX_FULLBRIGHT, 1);
tx->loaded = true; // mark as loaded
}
}
void Mod_LoadTextures (lump_t *l) {
int i, j, num, max, altmax, pixels;
miptex_t *mt;
texture_t *tx, *tx2, *anims[10], *altanims[10];
dmiptexlump_t *m;
if (!l->filelen) {
loadmodel->textures = NULL;
return;
}
m = (dmiptexlump_t *) (mod_base + l->fileofs);
m->nummiptex = LittleLong (m->nummiptex);
loadmodel->numtextures = m->nummiptex;
loadmodel->textures = (texture_t **) Hunk_AllocName (m->nummiptex * sizeof(*loadmodel->textures), loadname);
for (i = 0; i < m->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) )
Host_Error ("Texture %s is not 16 aligned", mt->name);
pixels = mt->width * mt->height / 64 * 85;// some magic numbers?
if (loadmodel->bspversion == HL_BSPVERSION)
pixels += 2 + 256*3; /* palette and unknown two bytes */
tx = (texture_t *) Hunk_AllocName (sizeof(texture_t) + pixels, loadname);
loadmodel->textures[i] = tx;
memcpy (tx->name, mt->name, sizeof(tx->name));
if (!tx->name[0]) {
snprintf(tx->name, sizeof(tx->name), "unnamed%d", i);
Com_DPrintf("Warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
}
tx->width = mt->width;
tx->height = mt->height;
tx->loaded = false; // so texture will be reloaded
if (loadmodel->bspversion == HL_BSPVERSION)
{
if (!mt->offsets[0])
continue;
// the pixels immediately follow the structures
memcpy (tx+1, mt+1, pixels);
for (j = 0; j < MIPLEVELS; j++)
tx->offsets[j] = mt->offsets[j] + sizeof(texture_t) - sizeof(miptex_t);
continue;
}
if (mt->offsets[0])
{
// the pixels immediately follow the structures
memcpy (tx+1, mt+1, pixels);
for (j = 0; j < MIPLEVELS; j++)
tx->offsets[j] = mt->offsets[j] + sizeof(texture_t) - sizeof(miptex_t);
// HACK HACK HACK
if (!strcmp(mt->name, "shot1sid") && mt->width==32 && mt->height==32
&& CRC_Block((byte*)(mt+1), mt->width*mt->height) == 65393)
{ // This texture in b_shell1.bsp has some of the first 32 pixels painted white.
// They are invisible in software, but look really ugly in GL. So we just copy
// 32 pixels from the bottom to make it look nice.
memcpy (tx+1, (byte *)(tx+1) + 32*31, 32);
}
// just for r_fastturb's sake
{
byte *data = (byte *) &d_8to24table[*((byte *) mt + mt->offsets[0] + ((mt->height * mt->width) >> 1))];
tx->flatcolor3ub = (255 << 24) + (data[0] << 0) + (data[1] << 8) + (data[2] << 16);
}
}
}
R_LoadBrushModelTextures (loadmodel);
// sequence the animations
for (i = 0; i < m->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));
max = tx->name[1];
altmax = 0;
if (max >= 'a' && max <= 'z')
max -= 'a' - 'A';
if (max >= '0' && max <= '9') {
max -= '0';
altmax = 0;
anims[max] = tx;
max++;
} else if (max >= 'A' && max <= 'J') {
altmax = max - 'A';
max = 0;
altanims[altmax] = tx;
altmax++;
} else {
Host_Error ("Mod_LoadTextures: Bad animating texture %s", tx->name);
}
for (j = i + 1; j < m->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 > max)
max = 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 < max; j++) {
tx2 = anims[j];
if (!tx2)
Host_Error ("Mod_LoadTextures: Missing frame %i of %s",j, tx->name);
tx2->anim_total = max * ANIM_CYCLE;
tx2->anim_min = j * ANIM_CYCLE;
tx2->anim_max = (j + 1) * ANIM_CYCLE;
tx2->anim_next = anims[ (j + 1)%max ];
if (altmax)
tx2->alternate_anims = altanims[0];
}
for (j = 0; j < altmax; j++) {
tx2 = altanims[j];
if (!tx2)
Host_Error ("Mod_LoadTextures: 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 (max)
tx2->alternate_anims = anims[0];
}
}
}
// this is callback from VID after a vid_restart
void Mod_ReloadModelsTextures (void)
{
int i, j;
model_t *m;
texture_t *tx;
if (cls.state != ca_active)
return; // seems we are not loaded models yet, so no need to reload textures
// mark all textures as not loaded, for brush models only, this speed up loading.
// seems textures shared between models, so we mark textures from ALL models than actually load textures, that why we use two for()
for (i = 1; i < MAX_MODELS; i++)
{
if (!cl.model_name[i][0])
break;
m = cl.model_precache[i];
if (m->type != mod_brush)
continue; // actual only for brush models
if (!m->textures)
continue; // hmm
for (j = 0; j < m->numtextures; j++)
{
tx = m->textures[j];
if (!tx)
continue;
tx->loaded = false; // so texture will be reloaded
}
}
// now actually load textures for brush models
for (i = 1; i < MAX_MODELS; i++)
{
if (!cl.model_name[i][0])
break;
m = cl.model_precache[i];
if (m->type != mod_brush)
continue; // actual only for brush models
R_LoadBrushModelTextures (m);
}
}
static byte *LoadColoredLighting(char *name, char **litfilename, int *filesize) {
qbool system;
byte *data;
char *groupname, *mapname;
extern cvar_t gl_loadlitfiles;
if (! (gl_loadlitfiles.integer == 1 || gl_loadlitfiles.integer == 2))
return NULL;
mapname = TP_MapName();
groupname = TP_GetMapGroupName(mapname, &system);
if (strcmp(name, va("maps/%s.bsp", mapname)))
return NULL;
*litfilename = va("maps/lits/%s.lit", mapname);
data = FS_LoadHunkFile (*litfilename, filesize);
if (!data) {
*litfilename = va("maps/%s.lit", mapname);
data = FS_LoadHunkFile (*litfilename, filesize);
}
if (!data) {
*litfilename = va("lits/%s.lit", mapname);
data = FS_LoadHunkFile (*litfilename, filesize);
}
if (!data && groupname && !system) {
*litfilename = va("maps/%s.lit", groupname);
data = FS_LoadHunkFile (*litfilename, filesize);
}
if (!data && groupname && !system) {
*litfilename = va("lits/%s.lit", groupname);
data = FS_LoadHunkFile (*litfilename, filesize);
}
return data;
}
void Mod_LoadLighting (lump_t *l) {
int i, lit_ver, mark;
byte *in, *out, *data;
char *litfilename;
int filesize;
extern cvar_t gl_loadlitfiles;
loadmodel->lightdata = NULL;
if (!l->filelen)
return;
if (loadmodel->bspversion == HL_BSPVERSION) {
loadmodel->lightdata = (byte *) Hunk_AllocName(l->filelen, loadname);
memcpy (loadmodel->lightdata, mod_base + l->fileofs, l->filelen);
return;
}
if (gl_loadlitfiles.integer == 1 || gl_loadlitfiles.integer == 3) {
int threshold = (lightmode == 1 ? 255 : lightmode == 2 ? 170 : 128);
int lumpsize;
byte *rgb = Mod_BSPX_FindLump("RGBLIGHTING", &lumpsize);
if (rgb && lumpsize == l->filelen * 3) {
loadmodel->lightdata = (byte *) Hunk_AllocName(lumpsize, loadname);
memcpy(loadmodel->lightdata, rgb, lumpsize);
// we trust the inline RGB data to be bug free so we don't check it against the mono lightmap
// what we do though is prevent color wash-out in brightly lit areas
// (one day we may do it in R_BuildLightMap instead)
out = loadmodel->lightdata;
for (i = 0; i < l->filelen; i++, out += 3) {
int m = max(out[0], max(out[1], out[2]));
if (m > threshold) {
out[0] = out[0] * threshold / m;
out[1] = out[1] * threshold / m;
out[2] = out[2] * threshold / m;
}
}
// all done, but we let them override it with a .lit
}
}
//check for a .lit file
mark = Hunk_LowMark();
data = LoadColoredLighting(loadmodel->name, &litfilename, &filesize);
if (data) {
if (filesize < 8 || strncmp((char *)data, "QLIT", 4)) {
Com_Printf("Corrupt .lit file (%s)...ignoring\n", COM_SkipPath(litfilename));
} else if (l->filelen * 3 + 8 != filesize) {
Com_Printf("Warning: .lit file (%s) has incorrect size\n", COM_SkipPath(litfilename));
} else if ((lit_ver = LittleLong(((int *)data)[1])) != 1) {
Com_Printf("Unknown .lit file version (v%d)\n", lit_ver);
} else {
if (developer.integer || cl_warncmd.integer)
Com_Printf("Static coloured lighting loaded\n");
loadmodel->lightdata = data + 8;
in = mod_base + l->fileofs;
out = loadmodel->lightdata;
if (Cvar_Value("gl_oldlitscaling")) {
// old way (makes colored areas too dark)
for (i = 0; i < l->filelen; i++, in++, out+=3) {
float m, s;
m = max(out[0], max(out[1], out[2]));
if (!m) {
out[0] = out[1] = out[2] = *in;
} else {
s = *in / m;
out[0] = (int) (s * out[0]);
out[1] = (int) (s * out[1]);
out[2] = (int) (s * out[2]);
}
}
} else {
// new way
float threshold = (lightmode == 1 ? 255 : lightmode == 2 ? 170 : 128);
for (i = 0; i < l->filelen; i++, in++, out+=3) {
float r, g, b, m, p, s;
if (!out[0] && !out[1] && !out[2]) {
out[0] = out[1] = out[2] = *in;
continue;
}
// calculate perceived brightness of the color sample
// kudos to Darel Rex Finley for his HSP color model
p = sqrt(out[0]*out[0]*0.241 + out[1]*out[1]*0.691 + out[2]*out[2]*0.068);
// scale to match perceived brightness of monochrome sample
s = *in / p;
r = s * out[0];
g = s * out[1];
b = s * out[2];
m = max(r, max(g, b));
if (m > threshold) {
// scale down to avoid color washout
r *= threshold/m;
g *= threshold/m;
b *= threshold/m;
}
out[0] = (int) (r + 0.5);
out[1] = (int) (g + 0.5);
out[2] = (int) (b + 0.5);
}
}
return;
}
Hunk_FreeToLowMark (mark);
}
if (loadmodel->lightdata)
return; // we have loaded inline RGB data
//no .lit found, expand the white lighting data to color
loadmodel->lightdata = (byte *) Hunk_AllocName (l->filelen * 3, va("%s_@lightdata", loadmodel->name));
in = mod_base + l->fileofs;
out = loadmodel->lightdata;
for (i = 0; i < l->filelen; i++, out += 3)
out[0] = out[1] = out[2] = *in++;
}
void Mod_LoadVisibility (lump_t *l) {
if (!l->filelen) {
loadmodel->visdata = NULL;
return;
}
loadmodel->visdata = (byte *) Hunk_AllocName (l->filelen, loadname);
memcpy (loadmodel->visdata, mod_base + l->fileofs, l->filelen);
}
static void Mod_ParseWadsFromEntityLump (lump_t *l)
{
char *data;
char *s, key[1024], value[1024];
int i, j, k;
if (!l->filelen)
return;
data = (char *)(mod_base + l->fileofs);
data = COM_Parse(data);
if (!data)
return;
if (com_token[0] != '{')
return; // error
while (1) {
if (!(data = COM_Parse(data)))
return; // error
if (com_token[0] == '}')
break; // end of worldspawn
strlcpy(key, (com_token[0] == '_') ? com_token + 1 : com_token, sizeof(key));
for (s = key + strlen(key) - 1; s >= key && *s == ' '; s--) // remove trailing spaces
*s = 0;
if (!(data = COM_Parse(data)))
return; // error
strlcpy(value, com_token, sizeof(value));
if (!strcmp("sky", key) || !strcmp("skyname", key))
Cvar_Set(&r_skyname, value);
if (!strcmp("wad", key)) {
j = 0;
for (i = 0; i < strlen(value); i++) {
if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
break;
}
if (!value[i])
continue;
for ( ; i < sizeof(value); i++) {
// ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
if (value[i] == '\\' || value[i] == '/' || value[i] == ':') {
j = i + 1;
} else if (value[i] == ';' || value[i] == 0) {
k = value[i];
value[i] = 0;
if (value[j])
WAD3_LoadWadFile (value + j);
j = i + 1;
if (!k)
break;
}
}
}
}
}
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);
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]);
}
}
void Mod_LoadSubmodels (lump_t *l) {
dmodel_t *in, *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);