mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-14 08:50:58 +00:00
882 lines
23 KiB
C
882 lines
23 KiB
C
/*
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sw32_rsurf.c
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surface-related refresh code
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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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#define NH_DEFINE
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#include "namehack.h"
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#include "QF/render.h"
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#include "QF/sys.h"
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#include "compat.h"
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#include "r_internal.h"
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drawsurf_t sw32_r_drawsurf;
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static int lightleft, blocksize, sourcetstep;
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static int lightright, lightleftstep, lightrightstep, blockdivshift;
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static unsigned int blockdivmask;
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static byte *prowdestbase;
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static byte *psource;
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static int surfrowbytes;
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static int *r_lightptr;
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static int r_stepback;
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static int r_lightwidth;
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static int r_numhblocks, r_numvblocks;
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static byte *r_source, *r_sourcemax;
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static void R_DrawSurfaceBlock8_mip0 (void);
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static void R_DrawSurfaceBlock8_mip1 (void);
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static void R_DrawSurfaceBlock8_mip2 (void);
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static void R_DrawSurfaceBlock8_mip3 (void);
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static void R_DrawSurfaceBlock16_mip0 (void);
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static void R_DrawSurfaceBlock16_mip1 (void);
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static void R_DrawSurfaceBlock16_mip2 (void);
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static void R_DrawSurfaceBlock16_mip3 (void);
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static void R_DrawSurfaceBlock32_mip0 (void);
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static void R_DrawSurfaceBlock32_mip1 (void);
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static void R_DrawSurfaceBlock32_mip2 (void);
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static void R_DrawSurfaceBlock32_mip3 (void);
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static void (*surfmiptable8[4]) (void) = {
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R_DrawSurfaceBlock8_mip0,
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R_DrawSurfaceBlock8_mip1,
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R_DrawSurfaceBlock8_mip2,
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R_DrawSurfaceBlock8_mip3
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};
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static void (*surfmiptable16[4]) (void) = {
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R_DrawSurfaceBlock16_mip0,
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R_DrawSurfaceBlock16_mip1,
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R_DrawSurfaceBlock16_mip2,
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R_DrawSurfaceBlock16_mip3
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};
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static void (*surfmiptable32[4]) (void) = {
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R_DrawSurfaceBlock32_mip0,
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R_DrawSurfaceBlock32_mip1,
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R_DrawSurfaceBlock32_mip2,
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R_DrawSurfaceBlock32_mip3
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};
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static int blocklights[34 * 34]; //FIXME make dynamic
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static void
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R_AddDynamicLights (void)
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{
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msurface_t *surf;
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unsigned int lnum;
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int sd, td;
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float dist, rad, minlight;
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vec3_t impact, local, lightorigin;
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int s, t;
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int i;
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int smax, tmax;
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mtexinfo_t *tex;
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surf = sw32_r_drawsurf.surf;
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smax = (surf->extents[0] >> 4) + 1;
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tmax = (surf->extents[1] >> 4) + 1;
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tex = surf->texinfo;
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for (lnum = 0; lnum < r_maxdlights; lnum++) {
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if (!(surf->dlightbits & (1 << lnum)))
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continue; // not lit by this light
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VectorSubtract (r_dlights[lnum].origin, currententity->origin,
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lightorigin);
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rad = r_dlights[lnum].radius;
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dist = DotProduct (lightorigin, surf->plane->normal) -
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surf->plane->dist;
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rad -= fabs (dist);
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minlight = r_dlights[lnum].minlight;
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if (rad < minlight)
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continue;
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minlight = rad - minlight;
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for (i = 0; i < 3; i++)
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impact[i] = lightorigin[i] - surf->plane->normal[i] * dist;
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local[0] = DotProduct (impact, tex->vecs[0]) + tex->vecs[0][3];
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local[1] = DotProduct (impact, tex->vecs[1]) + tex->vecs[1][3];
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local[0] -= surf->texturemins[0];
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local[1] -= surf->texturemins[1];
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for (t = 0; t < tmax; t++) {
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td = local[1] - t * 16;
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if (td < 0)
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td = -td;
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for (s = 0; s < smax; s++) {
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sd = local[0] - s * 16;
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if (sd < 0)
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sd = -sd;
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if (sd > td)
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dist = sd + (td >> 1);
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else
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dist = td + (sd >> 1);
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if (dist < minlight)
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blocklights[t * smax + s] += (rad - dist) * 256;
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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_BuildLightMap
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Combine and scale multiple lightmaps into the 8.8 format in blocklights
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*/
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static void
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R_BuildLightMap (void)
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{
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int smax, tmax;
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int t;
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int i, size;
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byte *lightmap;
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unsigned int scale;
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int maps;
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msurface_t *surf;
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surf = sw32_r_drawsurf.surf;
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smax = (surf->extents[0] >> 4) + 1;
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tmax = (surf->extents[1] >> 4) + 1;
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size = smax * tmax;
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lightmap = surf->samples;
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if (!r_worldentity.model->lightdata) {
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for (i = 0; i < size; i++)
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blocklights[i] = 0;
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return;
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}
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// clear to ambient
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for (i = 0; i < size; i++)
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blocklights[i] = r_refdef.ambientlight << 8;
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// add all the lightmaps
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if (lightmap)
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for (maps = 0; maps < MAXLIGHTMAPS && surf->styles[maps] != 255; maps++) {
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scale = sw32_r_drawsurf.lightadj[maps]; // 8.8 fraction
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for (i = 0; i < size; i++)
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blocklights[i] += lightmap[i] * scale;
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lightmap += size; // skip to next lightmap
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}
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// add all the dynamic lights
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if (surf->dlightframe == r_framecount)
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R_AddDynamicLights ();
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// LordHavoc: changed to positive (not inverse) lighting
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for (i = 0; i < size; i++) {
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t = bound(256, blocklights[i] >> (8 - VID_CBITS),
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256 * (VID_GRADES - 1));
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blocklights[i] = t;
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}
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/*
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// bound, invert, and shift
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for (i = 0; i < size; i++) {
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t = (255 * 256 - blocklights[i]) >> (8 - VID_CBITS);
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if (t < (1 << 6))
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t = (1 << 6);
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blocklights[i] = t;
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}
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*/
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}
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void
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sw32_R_DrawSurface (void)
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{
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byte *basetptr;
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int smax, tmax, twidth;
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int u;
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int soffset, basetoffset, texwidth;
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int horzblockstep;
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byte *pcolumndest;
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void (*pblockdrawer) (void);
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texture_t *mt;
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// calculate the lightings
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R_BuildLightMap ();
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surfrowbytes = sw32_r_drawsurf.rowbytes;
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mt = sw32_r_drawsurf.texture;
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r_source = (byte *) mt + mt->offsets[sw32_r_drawsurf.surfmip];
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// the fractional light values should range from 0 to
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// (VID_GRADES - 1) << 16 from a source range of 0 - 255
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texwidth = mt->width >> sw32_r_drawsurf.surfmip;
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blocksize = 16 >> sw32_r_drawsurf.surfmip;
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blockdivshift = 4 - sw32_r_drawsurf.surfmip;
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blockdivmask = (1 << blockdivshift) - 1;
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r_lightwidth = (sw32_r_drawsurf.surf->extents[0] >> 4) + 1;
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r_numhblocks = sw32_r_drawsurf.surfwidth >> blockdivshift;
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r_numvblocks = sw32_r_drawsurf.surfheight >> blockdivshift;
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//==============================
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smax = mt->width >> sw32_r_drawsurf.surfmip;
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twidth = texwidth;
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tmax = mt->height >> sw32_r_drawsurf.surfmip;
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sourcetstep = texwidth;
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r_stepback = tmax * twidth;
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soffset = sw32_r_drawsurf.surf->texturemins[0];
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basetoffset = sw32_r_drawsurf.surf->texturemins[1];
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switch (sw32_r_pixbytes) {
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case 1:
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pblockdrawer = surfmiptable8[sw32_r_drawsurf.surfmip];
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break;
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case 2:
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pblockdrawer = surfmiptable16[sw32_r_drawsurf.surfmip];
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break;
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case 4:
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pblockdrawer = surfmiptable32[sw32_r_drawsurf.surfmip];
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break;
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default:
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Sys_Error("R_DrawSurface: unsupported r_pixbytes %i", sw32_r_pixbytes);
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pblockdrawer = NULL;
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}
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horzblockstep = blocksize * sw32_r_pixbytes;
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r_sourcemax = r_source + (tmax * smax);
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// << 16 components are to guarantee positive values for %
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basetptr = r_source + (((basetoffset >> sw32_r_drawsurf.surfmip) +
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(tmax << 16)) % tmax) * twidth;
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soffset = (((soffset >> sw32_r_drawsurf.surfmip) + (smax << 16)) % smax);
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pcolumndest = (byte *) sw32_r_drawsurf.surfdat;
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for (u = 0; u < r_numhblocks; u++) {
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r_lightptr = blocklights + u;
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prowdestbase = pcolumndest;
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psource = basetptr + soffset;
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(*pblockdrawer) ();
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soffset = soffset + blocksize;
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if (soffset >= smax)
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soffset = 0;
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pcolumndest += horzblockstep;
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}
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}
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//=============================================================================
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static void
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R_DrawSurfaceBlock8_mip0 (void)
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{
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int v, i, b, lightstep, light;
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unsigned char pix, *prowdest;
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prowdest = prowdestbase;
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for (v = 0; v < r_numvblocks; v++) {
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// FIXME: make these locals?
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// FIXME: use delta rather than both right and left, like ASM?
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lightleft = r_lightptr[0];
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lightright = r_lightptr[1];
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r_lightptr += r_lightwidth;
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lightleftstep = (r_lightptr[0] - lightleft) >> 4;
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lightrightstep = (r_lightptr[1] - lightright) >> 4;
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for (i = 0; i < 16; i++) {
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lightstep = (lightleft - lightright) >> 4;
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light = lightright;
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for (b = 15; b >= 0; b--) {
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pix = psource[b];
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prowdest[b] = vid.colormap8[(light & 0xFF00) + pix];
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light += lightstep;
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}
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psource += sourcetstep;
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lightright += lightrightstep;
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lightleft += lightleftstep;
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prowdest += surfrowbytes;
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}
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if (psource >= r_sourcemax)
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psource -= r_stepback;
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}
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}
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static void
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R_DrawSurfaceBlock8_mip1 (void)
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{
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int v, i, b, lightstep, light;
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unsigned char pix, *prowdest;
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prowdest = prowdestbase;
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for (v = 0; v < r_numvblocks; v++) {
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// FIXME: make these locals?
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// FIXME: use delta rather than both right and left, like ASM?
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lightleft = r_lightptr[0];
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lightright = r_lightptr[1];
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r_lightptr += r_lightwidth;
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lightleftstep = (r_lightptr[0] - lightleft) >> 3;
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lightrightstep = (r_lightptr[1] - lightright) >> 3;
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for (i = 0; i < 8; i++) {
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lightstep = (lightleft - lightright) >> 3;
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light = lightright;
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for (b = 7; b >= 0; b--) {
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pix = psource[b];
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prowdest[b] = vid.colormap8[(light & 0xFF00) + pix];
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light += lightstep;
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}
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psource += sourcetstep;
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lightright += lightrightstep;
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lightleft += lightleftstep;
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prowdest += surfrowbytes;
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}
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if (psource >= r_sourcemax)
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psource -= r_stepback;
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}
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}
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static void
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R_DrawSurfaceBlock8_mip2 (void)
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{
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int v, i, b, lightstep, light;
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unsigned char pix, *prowdest;
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prowdest = prowdestbase;
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for (v = 0; v < r_numvblocks; v++) {
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// FIXME: make these locals?
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// FIXME: use delta rather than both right and left, like ASM?
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lightleft = r_lightptr[0];
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lightright = r_lightptr[1];
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r_lightptr += r_lightwidth;
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lightleftstep = (r_lightptr[0] - lightleft) >> 2;
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lightrightstep = (r_lightptr[1] - lightright) >> 2;
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for (i = 0; i < 4; i++) {
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lightstep = (lightleft - lightright) >> 2;
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light = lightright;
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for (b = 3; b >= 0; b--) {
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pix = psource[b];
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prowdest[b] = vid.colormap8[(light & 0xFF00) + pix];
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light += lightstep;
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}
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psource += sourcetstep;
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lightright += lightrightstep;
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lightleft += lightleftstep;
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prowdest += surfrowbytes;
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}
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if (psource >= r_sourcemax)
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psource -= r_stepback;
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}
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}
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static void
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R_DrawSurfaceBlock8_mip3 (void)
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{
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int v, i, b, lightstep, light;
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unsigned char pix, *prowdest;
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prowdest = prowdestbase;
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for (v = 0; v < r_numvblocks; v++) {
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// FIXME: make these locals?
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// FIXME: use delta rather than both right and left, like ASM?
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lightleft = r_lightptr[0];
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lightright = r_lightptr[1];
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r_lightptr += r_lightwidth;
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lightleftstep = (r_lightptr[0] - lightleft) >> 1;
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lightrightstep = (r_lightptr[1] - lightright) >> 1;
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for (i = 0; i < 2; i++) {
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lightstep = (lightleft - lightright) >> 1;
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light = lightright;
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for (b = 1; b >= 0; b--) {
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pix = psource[b];
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prowdest[b] = vid.colormap8[(light & 0xFF00) + pix];
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light += lightstep;
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}
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psource += sourcetstep;
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lightright += lightrightstep;
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lightleft += lightleftstep;
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prowdest += surfrowbytes;
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}
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if (psource >= r_sourcemax)
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psource -= r_stepback;
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}
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}
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static void
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R_DrawSurfaceBlock16_mip0 (void)
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{
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int k, v;
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int lightstep, light;
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unsigned short *prowdest;
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prowdest = (unsigned short *) prowdestbase;
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for (v = 0; v < r_numvblocks; v++)
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{
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lightleft = r_lightptr[0];
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lightright = r_lightptr[1];
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r_lightptr += r_lightwidth;
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lightleftstep = (r_lightptr[0] - lightleft) >> 4;
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lightrightstep = (r_lightptr[1] - lightright) >> 4;
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for (k = 0; k < 16; k++)
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{
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light = lightleft;
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lightstep = (lightright - lightleft) >> 4;
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prowdest[0] = vid.colormap16[(light & 0xFF00) + psource[0]];
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light += lightstep;
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prowdest[1] = vid.colormap16[(light & 0xFF00) + psource[1]];
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light += lightstep;
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prowdest[2] = vid.colormap16[(light & 0xFF00) + psource[2]];
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light += lightstep;
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prowdest[3] = vid.colormap16[(light & 0xFF00) + psource[3]];
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light += lightstep;
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prowdest[4] = vid.colormap16[(light & 0xFF00) + psource[4]];
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light += lightstep;
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prowdest[5] = vid.colormap16[(light & 0xFF00) + psource[5]];
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light += lightstep;
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prowdest[6] = vid.colormap16[(light & 0xFF00) + psource[6]];
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light += lightstep;
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prowdest[7] = vid.colormap16[(light & 0xFF00) + psource[7]];
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light += lightstep;
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prowdest[8] = vid.colormap16[(light & 0xFF00) + psource[8]];
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light += lightstep;
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prowdest[9] = vid.colormap16[(light & 0xFF00) + psource[9]];
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light += lightstep;
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prowdest[10] = vid.colormap16[(light & 0xFF00) + psource[10]];
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light += lightstep;
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prowdest[11] = vid.colormap16[(light & 0xFF00) + psource[11]];
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light += lightstep;
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prowdest[12] = vid.colormap16[(light & 0xFF00) + psource[12]];
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light += lightstep;
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prowdest[13] = vid.colormap16[(light & 0xFF00) + psource[13]];
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|
light += lightstep;
|
|
prowdest[14] = vid.colormap16[(light & 0xFF00) + psource[14]];
|
|
light += lightstep;
|
|
prowdest[15] = vid.colormap16[(light & 0xFF00) + psource[15]];
|
|
|
|
psource += sourcetstep;
|
|
lightright += lightrightstep;
|
|
lightleft += lightleftstep;
|
|
prowdest += (surfrowbytes >> 1);
|
|
}
|
|
|
|
if (psource >= r_sourcemax)
|
|
psource -= r_stepback;
|
|
}
|
|
}
|
|
|
|
static void
|
|
R_DrawSurfaceBlock16_mip1 (void)
|
|
{
|
|
int k, v;
|
|
int lightstep, light;
|
|
unsigned short *prowdest;
|
|
|
|
prowdest = (unsigned short *) prowdestbase;
|
|
|
|
for (v = 0; v < r_numvblocks; v++)
|
|
{
|
|
lightleft = r_lightptr[0];
|
|
lightright = r_lightptr[1];
|
|
r_lightptr += r_lightwidth;
|
|
lightleftstep = (r_lightptr[0] - lightleft) >> 3;
|
|
lightrightstep = (r_lightptr[1] - lightright) >> 3;
|
|
|
|
for (k = 0; k < 8; k++)
|
|
{
|
|
light = lightleft;
|
|
lightstep = (lightright - lightleft) >> 3;
|
|
|
|
prowdest[0] = vid.colormap16[(light & 0xFF00) + psource[0]];
|
|
light += lightstep;
|
|
prowdest[1] = vid.colormap16[(light & 0xFF00) + psource[1]];
|
|
light += lightstep;
|
|
prowdest[2] = vid.colormap16[(light & 0xFF00) + psource[2]];
|
|
light += lightstep;
|
|
prowdest[3] = vid.colormap16[(light & 0xFF00) + psource[3]];
|
|
light += lightstep;
|
|
prowdest[4] = vid.colormap16[(light & 0xFF00) + psource[4]];
|
|
light += lightstep;
|
|
prowdest[5] = vid.colormap16[(light & 0xFF00) + psource[5]];
|
|
light += lightstep;
|
|
prowdest[6] = vid.colormap16[(light & 0xFF00) + psource[6]];
|
|
light += lightstep;
|
|
prowdest[7] = vid.colormap16[(light & 0xFF00) + psource[7]];
|
|
|
|
psource += sourcetstep;
|
|
lightright += lightrightstep;
|
|
lightleft += lightleftstep;
|
|
prowdest += (surfrowbytes >> 1);
|
|
}
|
|
|
|
if (psource >= r_sourcemax)
|
|
psource -= r_stepback;
|
|
}
|
|
}
|
|
|
|
static void
|
|
R_DrawSurfaceBlock16_mip2 (void)
|
|
{
|
|
int k, v;
|
|
int lightstep, light;
|
|
unsigned short *prowdest;
|
|
|
|
prowdest = (unsigned short *) prowdestbase;
|
|
|
|
for (v = 0; v < r_numvblocks; v++)
|
|
{
|
|
lightleft = r_lightptr[0];
|
|
lightright = r_lightptr[1];
|
|
r_lightptr += r_lightwidth;
|
|
lightleftstep = (r_lightptr[0] - lightleft) >> 2;
|
|
lightrightstep = (r_lightptr[1] - lightright) >> 2;
|
|
|
|
for (k = 0; k < 4; k++)
|
|
{
|
|
light = lightleft;
|
|
lightstep = (lightright - lightleft) >> 2;
|
|
|
|
prowdest[0] = vid.colormap16[(light & 0xFF00) + psource[0]];
|
|
light += lightstep;
|
|
prowdest[1] = vid.colormap16[(light & 0xFF00) + psource[1]];
|
|
light += lightstep;
|
|
prowdest[2] = vid.colormap16[(light & 0xFF00) + psource[2]];
|
|
light += lightstep;
|
|
prowdest[3] = vid.colormap16[(light & 0xFF00) + psource[3]];
|
|
|
|
psource += sourcetstep;
|
|
lightright += lightrightstep;
|
|
lightleft += lightleftstep;
|
|
prowdest += (surfrowbytes >> 1);
|
|
}
|
|
|
|
if (psource >= r_sourcemax)
|
|
psource -= r_stepback;
|
|
}
|
|
}
|
|
|
|
static void
|
|
R_DrawSurfaceBlock16_mip3 (void)
|
|
{
|
|
int v;
|
|
unsigned short *prowdest;
|
|
|
|
prowdest = (unsigned short *) prowdestbase;
|
|
|
|
for (v = 0; v < r_numvblocks; v++)
|
|
{
|
|
lightleft = r_lightptr[0];
|
|
lightright = r_lightptr[1];
|
|
r_lightptr += r_lightwidth;
|
|
lightleftstep = (r_lightptr[0] - lightleft) >> 1;
|
|
lightrightstep = (r_lightptr[1] - lightright) >> 1;
|
|
|
|
prowdest[0] = vid.colormap16[(lightleft & 0xFF00) + psource[0]];
|
|
prowdest[1] = vid.colormap16[(((lightleft + lightright) >> 1) &
|
|
0xFF00) + psource[1]];
|
|
psource += sourcetstep;
|
|
lightright += lightrightstep;
|
|
lightleft += lightleftstep;
|
|
prowdest += (surfrowbytes >> 1);
|
|
|
|
prowdest[0] = vid.colormap16[(lightleft & 0xFF00) + psource[0]];
|
|
prowdest[1] = vid.colormap16[(((lightleft + lightright) >> 1) &
|
|
0xFF00) + psource[1]];
|
|
psource += sourcetstep;
|
|
prowdest += (surfrowbytes >> 1);
|
|
|
|
if (psource >= r_sourcemax)
|
|
psource -= r_stepback;
|
|
}
|
|
}
|
|
|
|
static void
|
|
R_DrawSurfaceBlock32_mip0 (void)
|
|
{
|
|
int k, v;
|
|
int lightstep, light;
|
|
unsigned int *prowdest;
|
|
|
|
prowdest = (unsigned int *) prowdestbase;
|
|
|
|
for (v = 0; v < r_numvblocks; v++)
|
|
{
|
|
lightleft = r_lightptr[0];
|
|
lightright = r_lightptr[1];
|
|
r_lightptr += r_lightwidth;
|
|
lightleftstep = (r_lightptr[0] - lightleft) >> 4;
|
|
lightrightstep = (r_lightptr[1] - lightright) >> 4;
|
|
|
|
for (k = 0; k < 16; k++)
|
|
{
|
|
light = lightleft;
|
|
lightstep = (lightright - lightleft) >> 4;
|
|
|
|
prowdest[0] = vid.colormap32[(light & 0xFF00) + psource[0]];
|
|
light += lightstep;
|
|
prowdest[1] = vid.colormap32[(light & 0xFF00) + psource[1]];
|
|
light += lightstep;
|
|
prowdest[2] = vid.colormap32[(light & 0xFF00) + psource[2]];
|
|
light += lightstep;
|
|
prowdest[3] = vid.colormap32[(light & 0xFF00) + psource[3]];
|
|
light += lightstep;
|
|
prowdest[4] = vid.colormap32[(light & 0xFF00) + psource[4]];
|
|
light += lightstep;
|
|
prowdest[5] = vid.colormap32[(light & 0xFF00) + psource[5]];
|
|
light += lightstep;
|
|
prowdest[6] = vid.colormap32[(light & 0xFF00) + psource[6]];
|
|
light += lightstep;
|
|
prowdest[7] = vid.colormap32[(light & 0xFF00) + psource[7]];
|
|
light += lightstep;
|
|
prowdest[8] = vid.colormap32[(light & 0xFF00) + psource[8]];
|
|
light += lightstep;
|
|
prowdest[9] = vid.colormap32[(light & 0xFF00) + psource[9]];
|
|
light += lightstep;
|
|
prowdest[10] = vid.colormap32[(light & 0xFF00) + psource[10]];
|
|
light += lightstep;
|
|
prowdest[11] = vid.colormap32[(light & 0xFF00) + psource[11]];
|
|
light += lightstep;
|
|
prowdest[12] = vid.colormap32[(light & 0xFF00) + psource[12]];
|
|
light += lightstep;
|
|
prowdest[13] = vid.colormap32[(light & 0xFF00) + psource[13]];
|
|
light += lightstep;
|
|
prowdest[14] = vid.colormap32[(light & 0xFF00) + psource[14]];
|
|
light += lightstep;
|
|
prowdest[15] = vid.colormap32[(light & 0xFF00) + psource[15]];
|
|
|
|
psource += sourcetstep;
|
|
lightright += lightrightstep;
|
|
lightleft += lightleftstep;
|
|
prowdest += (surfrowbytes >> 2);
|
|
}
|
|
|
|
if (psource >= r_sourcemax)
|
|
psource -= r_stepback;
|
|
}
|
|
}
|
|
|
|
static void
|
|
R_DrawSurfaceBlock32_mip1 (void)
|
|
{
|
|
int k, v;
|
|
int lightstep, light;
|
|
unsigned int *prowdest;
|
|
|
|
prowdest = (unsigned int *) prowdestbase;
|
|
|
|
for (v = 0; v < r_numvblocks; v++)
|
|
{
|
|
lightleft = r_lightptr[0];
|
|
lightright = r_lightptr[1];
|
|
r_lightptr += r_lightwidth;
|
|
lightleftstep = (r_lightptr[0] - lightleft) >> 3;
|
|
lightrightstep = (r_lightptr[1] - lightright) >> 3;
|
|
|
|
for (k = 0; k < 8; k++)
|
|
{
|
|
light = lightleft;
|
|
lightstep = (lightright - lightleft) >> 3;
|
|
|
|
prowdest[0] = vid.colormap32[(light & 0xFF00) + psource[0]];
|
|
light += lightstep;
|
|
prowdest[1] = vid.colormap32[(light & 0xFF00) + psource[1]];
|
|
light += lightstep;
|
|
prowdest[2] = vid.colormap32[(light & 0xFF00) + psource[2]];
|
|
light += lightstep;
|
|
prowdest[3] = vid.colormap32[(light & 0xFF00) + psource[3]];
|
|
light += lightstep;
|
|
prowdest[4] = vid.colormap32[(light & 0xFF00) + psource[4]];
|
|
light += lightstep;
|
|
prowdest[5] = vid.colormap32[(light & 0xFF00) + psource[5]];
|
|
light += lightstep;
|
|
prowdest[6] = vid.colormap32[(light & 0xFF00) + psource[6]];
|
|
light += lightstep;
|
|
prowdest[7] = vid.colormap32[(light & 0xFF00) + psource[7]];
|
|
|
|
psource += sourcetstep;
|
|
lightright += lightrightstep;
|
|
lightleft += lightleftstep;
|
|
prowdest += (surfrowbytes >> 2);
|
|
}
|
|
|
|
if (psource >= r_sourcemax)
|
|
psource -= r_stepback;
|
|
}
|
|
}
|
|
|
|
static void
|
|
R_DrawSurfaceBlock32_mip2 (void)
|
|
{
|
|
int k, v;
|
|
int lightstep, light;
|
|
unsigned int *prowdest;
|
|
|
|
prowdest = (unsigned int *) prowdestbase;
|
|
|
|
for (v = 0; v < r_numvblocks; v++)
|
|
{
|
|
lightleft = r_lightptr[0];
|
|
lightright = r_lightptr[1];
|
|
r_lightptr += r_lightwidth;
|
|
lightleftstep = (r_lightptr[0] - lightleft) >> 2;
|
|
lightrightstep = (r_lightptr[1] - lightright) >> 2;
|
|
|
|
for (k = 0; k < 4; k++)
|
|
{
|
|
light = lightleft;
|
|
lightstep = (lightright - lightleft) >> 2;
|
|
|
|
prowdest[0] = vid.colormap32[(light & 0xFF00) + psource[0]];
|
|
light += lightstep;
|
|
prowdest[1] = vid.colormap32[(light & 0xFF00) + psource[1]];
|
|
light += lightstep;
|
|
prowdest[2] = vid.colormap32[(light & 0xFF00) + psource[2]];
|
|
light += lightstep;
|
|
prowdest[3] = vid.colormap32[(light & 0xFF00) + psource[3]];
|
|
|
|
psource += sourcetstep;
|
|
lightright += lightrightstep;
|
|
lightleft += lightleftstep;
|
|
prowdest += (surfrowbytes >> 2);
|
|
}
|
|
|
|
if (psource >= r_sourcemax)
|
|
psource -= r_stepback;
|
|
}
|
|
}
|
|
|
|
static void
|
|
R_DrawSurfaceBlock32_mip3 (void)
|
|
{
|
|
int v;
|
|
unsigned int *prowdest;
|
|
|
|
prowdest = (unsigned int *) prowdestbase;
|
|
|
|
for (v = 0; v < r_numvblocks; v++)
|
|
{
|
|
lightleft = r_lightptr[0];
|
|
lightright = r_lightptr[1];
|
|
r_lightptr += r_lightwidth;
|
|
lightleftstep = (r_lightptr[0] - lightleft) >> 1;
|
|
lightrightstep = (r_lightptr[1] - lightright) >> 1;
|
|
|
|
prowdest[0] = vid.colormap32[(lightleft & 0xFF00) + psource[0]];
|
|
prowdest[1] = vid.colormap32[(((lightleft + lightright) >> 1) &
|
|
0xFF00) + psource[1]];
|
|
psource += sourcetstep;
|
|
lightright += lightrightstep;
|
|
lightleft += lightleftstep;
|
|
prowdest += (surfrowbytes >> 2);
|
|
|
|
prowdest[0] = vid.colormap32[(lightleft & 0xFF00) + psource[0]];
|
|
prowdest[1] = vid.colormap32[(((lightleft + lightright) >> 1) &
|
|
0xFF00) + psource[1]];
|
|
psource += sourcetstep;
|
|
lightright += lightrightstep;
|
|
lightleft += lightleftstep;
|
|
prowdest += (surfrowbytes >> 2);
|
|
|
|
if (psource >= r_sourcemax)
|
|
psource -= r_stepback;
|
|
}
|
|
}
|
|
|
|
/*
|
|
void
|
|
R_DrawSurfaceBlock32 (void)
|
|
{
|
|
int k, v;
|
|
int lightstep, light;
|
|
unsigned int *prowdest;
|
|
|
|
prowdest = prowdestbase;
|
|
|
|
for (v = 0; v < r_numvblocks; v++) {
|
|
|
|
lightleft = r_lightptr[0];
|
|
lightright = r_lightptr[1];
|
|
r_lightptr += r_lightwidth;
|
|
lightleftstep = (r_lightptr[0] - lightleft) >> blockdivshift;
|
|
lightrightstep = (r_lightptr[1] - lightright) >> blockdivshift;
|
|
|
|
for (k = 0; k < blocksize; k++) {
|
|
int b;
|
|
|
|
lightstep = (lightright - lightleft) >> blockdivshift;
|
|
|
|
light = lightleft;
|
|
|
|
for (b = 0;b < blocksize;b++, light += lightstep)
|
|
prowdest[b] = vid.colormap32[(light & 0xFF00) + psource[b]];
|
|
|
|
psource += sourcetstep;
|
|
lightright += lightrightstep;
|
|
lightleft += lightleftstep;
|
|
prowdest += (surfrowbytes >> 2);
|
|
}
|
|
|
|
if (psource >= r_sourcemax)
|
|
psource -= r_stepback;
|
|
}
|
|
}
|
|
*/
|