mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-22 20:41:20 +00:00
2790972cb0
I needed to mark leaves based on an arbitrary PVS (for lighting) that is independent of the camera position. Also cleaned up some const correctness.
138 lines
3.1 KiB
C
138 lines
3.1 KiB
C
/*
|
|
r_bsp.c
|
|
|
|
Common bsp rendering.
|
|
|
|
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
|
|
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_STRING_H
|
|
# include "string.h"
|
|
#endif
|
|
#ifdef HAVE_STRINGS_H
|
|
# include "strings.h"
|
|
#endif
|
|
|
|
#include "QF/cvar.h"
|
|
#include "QF/set.h"
|
|
#include "QF/sys.h"
|
|
|
|
#include "QF/scene/entity.h"
|
|
|
|
#include "r_internal.h"
|
|
|
|
static set_t *solid;
|
|
|
|
void
|
|
R_MarkLeavesPVS (visstate_t *visstate, const set_t *pvs)
|
|
{
|
|
int visframecount = ++visstate->visframecount;
|
|
auto brush = visstate->brush;
|
|
auto node_visframes = visstate->node_visframes;
|
|
auto leaf_visframes = visstate->leaf_visframes;
|
|
auto face_visframes = visstate->face_visframes;
|
|
for (auto li = set_first (pvs); li; li = set_next (li)) {
|
|
unsigned i = li->element;
|
|
if (set_is_member (pvs, i)) {
|
|
auto leaf = &brush->leafs[i + 1];
|
|
int c;
|
|
if ((c = leaf->nummarksurfaces)) {
|
|
auto mark = brush->marksurfaces + leaf->firstmarksurface;
|
|
do {
|
|
face_visframes[*mark - brush->surfaces] = visframecount;
|
|
mark++;
|
|
} while (--c);
|
|
}
|
|
leaf_visframes[i + 1] = visframecount;
|
|
int node_id = brush->leaf_parents[leaf - brush->leafs];
|
|
while (node_id >= 0) {
|
|
if (node_visframes[node_id] == visframecount)
|
|
break;
|
|
node_visframes[node_id] = visframecount;
|
|
node_id = brush->node_parents[node_id];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
R_MarkLeaves (visstate_t *visstate, const mleaf_t *viewleaf)
|
|
{
|
|
set_t *vis;
|
|
auto brush = visstate->brush;
|
|
|
|
if (visstate->viewleaf == viewleaf && !r_novis)
|
|
return;
|
|
|
|
visstate->viewleaf = viewleaf;
|
|
if (!viewleaf)
|
|
return;
|
|
|
|
if (r_novis) {
|
|
// so vis will be recalculated when novis gets turned off
|
|
visstate->viewleaf = 0;
|
|
if (!solid) {
|
|
solid = set_new ();
|
|
set_everything (solid);
|
|
}
|
|
vis = solid;
|
|
} else {
|
|
vis = Mod_LeafPVS (viewleaf, brush);
|
|
}
|
|
R_MarkLeavesPVS (visstate, vis);
|
|
}
|
|
|
|
/*
|
|
R_TextureAnimation
|
|
|
|
Returns the proper texture for a given time and base texture
|
|
*/
|
|
texture_t *
|
|
R_TextureAnimation (int frame, msurface_t *surf)
|
|
{
|
|
texture_t *base = surf->texinfo->texture;
|
|
int count, relative;
|
|
|
|
if (frame) {
|
|
if (base->alternate_anims)
|
|
base = base->alternate_anims;
|
|
}
|
|
|
|
if (!base->anim_total)
|
|
return base;
|
|
|
|
relative = (int) (r_data->realtime * 10) % base->anim_total;
|
|
|
|
count = 0;
|
|
while (base->anim_min > relative || base->anim_max <= relative) {
|
|
base = base->anim_next;
|
|
if (!base)
|
|
Sys_Error ("R_TextureAnimation: broken cycle");
|
|
if (++count > 100)
|
|
Sys_Error ("R_TextureAnimation: infinite cycle");
|
|
}
|
|
|
|
return base;
|
|
}
|