307 lines
7.0 KiB
C
307 lines
7.0 KiB
C
/*
|
|
model.c
|
|
|
|
model loading and caching
|
|
|
|
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:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
*/
|
|
// Models are the only shared resource between a client and server running
|
|
// on the same machine.
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
static __attribute__ ((used)) const char rcsid[] =
|
|
"$Id$";
|
|
|
|
#ifdef HAVE_STRING_H
|
|
# include <string.h>
|
|
#endif
|
|
#ifdef HAVE_STRINGS_H
|
|
# include <strings.h>
|
|
#endif
|
|
|
|
#include "QF/cvar.h"
|
|
#include "QF/model.h"
|
|
#include "QF/qendian.h"
|
|
#include "QF/quakefs.h"
|
|
#include "QF/sys.h"
|
|
|
|
#include "compat.h"
|
|
|
|
model_t *loadmodel;
|
|
char *loadname; // for hunk tags
|
|
|
|
#define MAX_MOD_KNOWN 512
|
|
model_t mod_known[MAX_MOD_KNOWN];
|
|
int mod_numknown;
|
|
|
|
VISIBLE texture_t *r_notexture_mip;
|
|
|
|
cvar_t *gl_mesh_cache;
|
|
cvar_t *gl_subdivide_size;
|
|
cvar_t *gl_alias_render_tri;
|
|
cvar_t *gl_textures_external;
|
|
|
|
static void Mod_CallbackLoad (void *object, cache_allocator_t allocator);
|
|
|
|
VISIBLE void
|
|
Mod_Init (void)
|
|
{
|
|
byte *dest;
|
|
int m, x, y;
|
|
int mip0size = 16*16, mip1size = 8*8, mip2size = 4*4, mip3size = 2*2;
|
|
|
|
memset (mod_novis, 0xff, sizeof (mod_novis));
|
|
r_notexture_mip = Hunk_AllocName (sizeof (texture_t) + mip0size + mip1size
|
|
+ mip2size + mip3size, "notexture");
|
|
|
|
r_notexture_mip->width = r_notexture_mip->height = 16;
|
|
r_notexture_mip->offsets[0] = sizeof (texture_t);
|
|
|
|
r_notexture_mip->offsets[1] = r_notexture_mip->offsets[0] + mip0size;
|
|
r_notexture_mip->offsets[2] = r_notexture_mip->offsets[1] + mip1size;
|
|
r_notexture_mip->offsets[3] = r_notexture_mip->offsets[2] + mip2size;
|
|
|
|
for (m = 0; m < 4; m++) {
|
|
dest = (byte *) r_notexture_mip + r_notexture_mip->offsets[m];
|
|
for (y = 0; y < (16 >> m); y++)
|
|
for (x = 0; x < (16 >> m); x++) {
|
|
if ((y < (8 >> m)) ^ (x < (8 >> m)))
|
|
*dest++ = 0;
|
|
else
|
|
*dest++ = 0xff;
|
|
}
|
|
}
|
|
}
|
|
|
|
VISIBLE void
|
|
Mod_Init_Cvars (void)
|
|
{
|
|
gl_subdivide_size =
|
|
Cvar_Get ("gl_subdivide_size", "128", CVAR_ARCHIVE, NULL,
|
|
"Sets the division value for the sky brushes.");
|
|
gl_mesh_cache = Cvar_Get ("gl_mesh_cache", "256", CVAR_ARCHIVE, NULL,
|
|
"minimum triangle count in a model for its mesh"
|
|
" to be cached. 0 to disable caching");
|
|
gl_alias_render_tri =
|
|
Cvar_Get ("gl_alias_render_tri", "0", CVAR_ARCHIVE, NULL, "When "
|
|
"loading alias models mesh for pure triangle rendering");
|
|
gl_textures_external =
|
|
Cvar_Get ("gl_textures_external", "1", CVAR_ARCHIVE, NULL,
|
|
"Use external textures to replace BSP textures");
|
|
}
|
|
|
|
VISIBLE void
|
|
Mod_ClearAll (void)
|
|
{
|
|
int i;
|
|
model_t *mod;
|
|
|
|
for (i = 0, mod = mod_known; i < mod_numknown; i++, mod++) {
|
|
if (mod->type != mod_alias)
|
|
mod->needload = true;
|
|
if (mod->type == mod_sprite)
|
|
mod->cache.data = 0;
|
|
}
|
|
}
|
|
|
|
model_t *
|
|
Mod_FindName (const char *name)
|
|
{
|
|
int i;
|
|
model_t *mod;
|
|
|
|
if (!name[0])
|
|
Sys_Error ("Mod_FindName: empty 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");
|
|
strcpy (mod->name, name);
|
|
mod->needload = true;
|
|
mod_numknown++;
|
|
Cache_Add (&mod->cache, mod, Mod_CallbackLoad);
|
|
}
|
|
|
|
return mod;
|
|
}
|
|
|
|
static model_t *
|
|
Mod_RealLoadModel (model_t *mod, qboolean crash, cache_allocator_t allocator)
|
|
{
|
|
unsigned int *buf;
|
|
|
|
// load the file
|
|
buf = (unsigned int *) QFS_LoadFile (mod->name, 0);
|
|
if (!buf) {
|
|
if (crash)
|
|
Sys_Error ("Mod_LoadModel: %s not found", mod->name);
|
|
return NULL;
|
|
}
|
|
|
|
// allocate a new model
|
|
if (loadname)
|
|
free (loadname);
|
|
loadname = QFS_FileBase (mod->name);
|
|
|
|
loadmodel = mod;
|
|
|
|
// fill it in
|
|
mod->fullbright = 0;
|
|
mod->shadow_alpha = 255;
|
|
mod->min_light = 0.0;
|
|
|
|
// call the apropriate loader
|
|
mod->needload = false;
|
|
mod->hasfullbrights = false;
|
|
|
|
switch (LittleLong (*(unsigned int *) buf)) {
|
|
case IDHEADER_MDL: // Type 6: Quake 1 .mdl
|
|
case HEADER_MDL16: // QF Type 6 extended for 16bit precision
|
|
if (strequal (mod->name, "progs/grenade.mdl")) {
|
|
mod->fullbright = 0;
|
|
mod->shadow_alpha = 0;
|
|
} else if (strnequal (mod->name, "progs/flame", 11)
|
|
|| strnequal (mod->name, "progs/bolt", 10)) {
|
|
mod->fullbright = 1;
|
|
mod->shadow_alpha = 0;
|
|
}
|
|
if (strnequal (mod->name, "progs/v_", 8)) {
|
|
mod->min_light = 0.12;
|
|
} else if (strequal (mod->name, "progs/player.mdl")) {
|
|
mod->min_light = 0.04;
|
|
}
|
|
Mod_LoadAliasModel (mod, buf, allocator);
|
|
break;
|
|
case IDHEADER_MD2: // Type 8: Quake 2 .md2
|
|
// Mod_LoadMD2 (mod, buf, allocator);
|
|
break;
|
|
case IDHEADER_SPR: // Type 1: Quake 1 .spr
|
|
Mod_LoadSpriteModel (mod, buf);
|
|
break;
|
|
case IDHEADER_SP2: // Type 2: Quake 2 .sp2
|
|
// Mod_LoadSP2 (mod, buf);
|
|
break;
|
|
default: // Version 29: Quake 1 .bsp
|
|
// Version 38: Quake 2 .bsp
|
|
Mod_LoadBrushModel (mod, buf);
|
|
|
|
if (gl_textures_external->int_val)
|
|
Mod_LoadExternalTextures (mod);
|
|
break;
|
|
}
|
|
free (buf);
|
|
|
|
return mod;
|
|
}
|
|
|
|
/*
|
|
Mod_LoadModel
|
|
|
|
Loads a model into the cache
|
|
*/
|
|
static model_t *
|
|
Mod_LoadModel (model_t *mod, qboolean crash)
|
|
{
|
|
if (!mod->needload) {
|
|
if (mod->type == mod_alias) {
|
|
if (Cache_Check (&mod->cache))
|
|
return mod;
|
|
} else
|
|
return mod; // not cached at all
|
|
}
|
|
return Mod_RealLoadModel (mod, crash, Cache_Alloc);
|
|
}
|
|
|
|
/*
|
|
Mod_CallbackLoad
|
|
|
|
Callback used to load model automatically
|
|
*/
|
|
static void
|
|
Mod_CallbackLoad (void *object, cache_allocator_t allocator)
|
|
{
|
|
if (((model_t *)object)->type != mod_alias)
|
|
Sys_Error ("Mod_CallbackLoad for non-alias model? FIXME!");
|
|
// FIXME: do we want crash set to true?
|
|
Mod_RealLoadModel (object, true, allocator);
|
|
}
|
|
|
|
/*
|
|
Mod_ForName
|
|
|
|
Loads in a model for the given name
|
|
*/
|
|
VISIBLE model_t *
|
|
Mod_ForName (const char *name, qboolean crash)
|
|
{
|
|
model_t *mod;
|
|
|
|
mod = Mod_FindName (name);
|
|
|
|
Sys_DPrintf ("Mod_ForName: %s, %p\n", name, mod);
|
|
return Mod_LoadModel (mod, crash);
|
|
}
|
|
|
|
VISIBLE void
|
|
Mod_TouchModel (const char *name)
|
|
{
|
|
model_t *mod;
|
|
|
|
mod = Mod_FindName (name);
|
|
|
|
if (!mod->needload) {
|
|
if (mod->type == mod_alias)
|
|
Cache_Check (&mod->cache);
|
|
}
|
|
}
|
|
|
|
VISIBLE void
|
|
Mod_Print (void)
|
|
{
|
|
int i;
|
|
model_t *mod;
|
|
|
|
Sys_Printf ("Cached models:\n");
|
|
for (i = 0, mod = mod_known; i < mod_numknown; i++, mod++) {
|
|
Sys_Printf ("%8p : %s\n", mod->cache.data, mod->name);
|
|
}
|
|
}
|
|
|
|
float
|
|
RadiusFromBounds (const vec3_t mins, const vec3_t maxs)
|
|
{
|
|
int i;
|
|
vec3_t corner;
|
|
|
|
for (i = 0; i < 3; i++)
|
|
corner[i] = max (fabs (mins[i]), fabs (maxs[i]));
|
|
return VectorLength (corner);
|
|
}
|