mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-30 08:00:51 +00:00
bc7858bb87
The node struct was 72 bytes thus two cache line. Moving the pointer into the brush model data block allows nodes to fit in a single cache line (not that they're aligned yet, but that's next). It doesn't seem to have made any difference to performance (at least in the vulkan renderer), but it hasn't hurt, either, as the only place that needed the parent pointer was R_MarkLeaves.
128 lines
2.8 KiB
C
128 lines
2.8 KiB
C
/*
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r_bsp.c
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Common bsp rendering.
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include "string.h"
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#endif
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#ifdef HAVE_STRINGS_H
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# include "strings.h"
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#endif
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#include "QF/cvar.h"
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#include "QF/sys.h"
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#include "r_internal.h"
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mvertex_t *r_pcurrentvertbase;
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mleaf_t *r_viewleaf;
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static mleaf_t *r_oldviewleaf;
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void
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R_MarkLeaves (void)
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{
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byte solid[8192];
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byte *vis;
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int c;
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unsigned int i;
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mleaf_t *leaf;
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mnode_t *node;
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msurface_t **mark;
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mod_brush_t *brush = &r_worldentity.model->brush;
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if (r_oldviewleaf == r_viewleaf && !r_novis->int_val)
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return;
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r_visframecount++;
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r_oldviewleaf = r_viewleaf;
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if (!r_viewleaf)
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return;
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if (r_novis->int_val) {
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r_oldviewleaf = 0; // so vis will be recalcualted when novis gets
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// turned off
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vis = solid;
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memset (solid, 0xff, (brush->numleafs + 7) >> 3);
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} else
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vis = Mod_LeafPVS (r_viewleaf, r_worldentity.model);
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for (i = 0; (int) i < brush->numleafs; i++) {
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if (vis[i >> 3] & (1 << (i & 7))) {
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leaf = &brush->leafs[i + 1];
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if ((c = leaf->nummarksurfaces)) {
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mark = leaf->firstmarksurface;
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do {
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(*mark)->visframe = r_visframecount;
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mark++;
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} while (--c);
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}
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leaf->visframe = r_visframecount;
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node = brush->leaf_parents[leaf - brush->leafs];
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while (node) {
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if (node->visframe == r_visframecount)
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break;
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node->visframe = r_visframecount;
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node = brush->node_parents[node - brush->nodes];
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}
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}
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}
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}
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/*
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R_TextureAnimation
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Returns the proper texture for a given time and base texture
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*/
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texture_t *
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R_TextureAnimation (msurface_t *surf)
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{
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texture_t *base = surf->texinfo->texture;
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int count, relative;
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if (currententity->frame) {
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if (base->alternate_anims)
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base = base->alternate_anims;
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}
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if (!base->anim_total)
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return base;
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relative = (int) (vr_data.realtime * 10) % base->anim_total;
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count = 0;
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while (base->anim_min > relative || base->anim_max <= relative) {
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base = base->anim_next;
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if (!base)
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Sys_Error ("R_TextureAnimation: broken cycle");
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if (++count > 100)
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Sys_Error ("R_TextureAnimation: infinite cycle");
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}
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return base;
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}
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