forked from valve/halflife-sdk
228 lines
4 KiB
C
228 lines
4 KiB
C
//========= Copyright © 1996-2002, Valve LLC, All rights reserved. ============
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================
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// lighting.c
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#include "light.h"
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/*
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NOTES
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-----
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*/
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float scaledist = 1.0;
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float scalecos = 0.5;
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float rangescale = 0.5;
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byte *filebase, *file_p, *file_end;
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dmodel_t *bspmodel;
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vec3_t bsp_origin;
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qboolean extrasamples;
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qboolean hicolor;
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qboolean clamp192 = true;
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float minlights[MAX_MAP_FACES];
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lightentity_t lightentities[MAX_MAP_ENTITIES];
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int numlightentities;
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/*
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==================
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LoadEntities
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==================
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*/
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void LoadEntities (void)
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{
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char *s, *s2;
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entity_t *e;
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lightentity_t *le;
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int i, j;
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ParseEntities ();
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// go through all the entities
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for (i=1 ; i<num_entities ; i++)
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{
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e = &entities[i];
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s = ValueForKey (e, "classname");
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if (strncmp (s, "light", 5))
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continue;
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le = &lightentities[numlightentities];
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numlightentities++;
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strcpy (le->classname, s);
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s = ValueForKey( e, "_light" );
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if( s )
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{
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double v1, v2, v3;
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v1 = v2 = v3 = 0;
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if( sscanf( s, "%lf %lf %lf", &v1, &v2, &v3) != 3 )
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v2 = v3 = v1;
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le->light[0] = v1;
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le->light[1] = v2;
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le->light[2] = v3;
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}
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else
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{
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le->light[0] = DEFAULTLIGHTLEVEL;
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le->light[1] = DEFAULTLIGHTLEVEL;
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le->light[2] = DEFAULTLIGHTLEVEL;
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}
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le->style = FloatForKey (e, "style");
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le->angle = FloatForKey (e, "angle");
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GetVectorForKey (e, "origin", le->origin);
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s = ValueForKey (e, "target");
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if (!s[0])
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continue;
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// find matching targetname
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for (j=1 ; j<num_entities ; j++)
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{
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s2 = ValueForKey (&entities[j], "targetname");
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if (!strcmp (s, s2))
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{
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le->targetent = true;
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GetVectorForKey (&entities[j], "origin", le->targetorigin);
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break;
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}
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}
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if (j == num_entities)
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printf ("WARNING: entity %i has unmatched target %s\n", i, s);
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}
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qprintf ("%d lightentities\n", numlightentities);
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}
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byte *GetFileSpace (int size)
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{
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byte *buf;
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ThreadLock();
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file_p = (byte *)(((long)file_p + 3)&~3);
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buf = file_p;
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file_p += size;
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ThreadUnlock();
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if (file_p > file_end)
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Error ("GetFileSpace: overrun");
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return buf;
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}
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/*
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=============
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LightWorld
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=============
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*/
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void LightWorld (void)
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{
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filebase = file_p = dlightdata;
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file_end = filebase + MAX_MAP_LIGHTING;
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RunThreadsOnIndividual (numfaces, true, LightFace);
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lightdatasize = file_p - filebase;
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printf ("lightdatasize: %i\n", lightdatasize);
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}
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/*
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========
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main
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light modelfile
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========
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*/
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int main (int argc, char **argv)
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{
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int i;
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double start, end;
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char source[1024];
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printf("Light.exe Version 1.3 Id Software and valve (%s)\n", __DATE__ );
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printf ("----- LightFaces ----\n");
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// default to 24-bit light info
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hicolor = true;
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for (i=1 ; i<argc ; i++)
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{
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if (!strcmp(argv[i],"-threads"))
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{
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numthreads = atoi (argv[i+1]);
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i++;
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}
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else if (!strcmp(argv[i],"-extra"))
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{
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extrasamples = true;
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printf ("extra sampling enabled\n");
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}
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else if (!strcmp(argv[i],"-dist"))
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{
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scaledist = atof (argv[i+1]);
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i++;
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}
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else if (!strcmp(argv[i],"-range"))
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{
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rangescale = atof (argv[i+1]);
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i++;
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}
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else if (!strcmp(argv[i],"-lowcolor"))
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{
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hicolor = false;
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}
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else if (!strcmp( argv[ i ], "-noclamp" ) )
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{
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clamp192 = false;
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}
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else if (argv[i][0] == '-')
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Error ("Unknown option \"%s\"", argv[i]);
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else
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break;
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}
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if (i != argc - 1)
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Error ("usage: light [-threads num] [-extra] [-lowcolor] bspfile");
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ThreadSetDefault ();
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start = I_FloatTime ();
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strcpy (source, argv[i]);
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StripExtension (source);
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DefaultExtension (source, ".bsp");
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LoadBSPFile (source);
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LoadEntities ();
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MakeTnodes (&dmodels[0]);
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LightWorld ();
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WriteBSPFile (source);
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end = I_FloatTime ();
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printf ("%5.1f seconds elapsed\n", end-start);
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return 0;
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}
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