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Diffstat (limited to 'common/trilib.c')
| -rw-r--r-- | common/trilib.c | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/common/trilib.c b/common/trilib.c deleted file mode 100644 index 07f5fdb..0000000 --- a/common/trilib.c +++ /dev/null @@ -1,231 +0,0 @@ -/* -=========================================================================== -Copyright (C) 1999-2005 Id Software, Inc. - -This file is part of Quake III Arena source code. - -Quake III Arena source code 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. - -Quake III Arena source code 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 Foobar; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -=========================================================================== -*/ -// -// trilib.c: library for loading triangles from an Alias triangle file -// - -#include <stdio.h> -#include "cmdlib.h" -#include "mathlib.h" -#include "polyset.h" -#include "trilib.h" - -// on disk representation of a face - - -#define FLOAT_START 99999.0 -#define FLOAT_END -FLOAT_START -#define MAGIC 123322 - -//#define NOISY 1 - -typedef struct { - float v[3]; -} vector; - -typedef struct -{ - vector n; /* normal */ - vector p; /* point */ - vector c; /* color */ - float u; /* u */ - float v; /* v */ -} aliaspoint_t; - -typedef struct { - aliaspoint_t pt[3]; -} tf_triangle; - - -static void ByteSwapTri (tf_triangle *tri) -{ - int i; - - for (i=0 ; i<sizeof(tf_triangle)/4 ; i++) - { - ((int *)tri)[i] = BigLong (((int *)tri)[i]); - } -} - -static void ReadPolysetGeometry( triangle_t *tripool, FILE *input, int count, triangle_t *ptri ) -{ - tf_triangle tri; - int i; - - for (i = 0; i < count; ++i) { - int j; - - fread( &tri, sizeof(tf_triangle), 1, input ); - ByteSwapTri (&tri); - for (j=0 ; j<3 ; j++) - { - int k; - - for (k=0 ; k<3 ; k++) - { - ptri->verts[j][k] = tri.pt[j].p.v[k]; - ptri->normals[j][k] = tri.pt[j].n.v[k]; -// ptri->colors[j][k] = tri.pt[j].c.v[k]; - } - - ptri->texcoords[j][0] = tri.pt[j].u; - ptri->texcoords[j][1] = tri.pt[j].v; - } - - ptri++; - if ((ptri - tripool ) >= POLYSET_MAXTRIANGLES) - Error ("Error: too many triangles; increase POLYSET_MAXTRIANGLES\n"); - } -} - -void TRI_LoadPolysets( const char *filename, polyset_t **ppPSET, int *numpsets ) -{ - FILE *input; - float start; - char name[256], tex[256]; - int i, count, magic, pset = 0; - triangle_t *ptri; - polyset_t *pPSET; - int iLevel; - int exitpattern; - float t; - - t = -FLOAT_START; - *((unsigned char *)&exitpattern + 0) = *((unsigned char *)&t + 3); - *((unsigned char *)&exitpattern + 1) = *((unsigned char *)&t + 2); - *((unsigned char *)&exitpattern + 2) = *((unsigned char *)&t + 1); - *((unsigned char *)&exitpattern + 3) = *((unsigned char *)&t + 0); - - if ((input = fopen(filename, "rb")) == 0) - Error ("reader: could not open file '%s'", filename); - - iLevel = 0; - - fread(&magic, sizeof(int), 1, input); - if (BigLong(magic) != MAGIC) - Error ("%s is not a Alias object separated triangle file, magic number is wrong.", filename); - - pPSET = calloc( 1, POLYSET_MAXPOLYSETS * sizeof( polyset_t ) ); - ptri = calloc( 1, POLYSET_MAXTRIANGLES * sizeof( triangle_t ) ); - - *ppPSET = pPSET; - - while (feof(input) == 0) { - if (fread(&start, sizeof(float), 1, input) < 1) - break; - *(int *)&start = BigLong(*(int *)&start); - if (*(int *)&start != exitpattern) - { - if (start == FLOAT_START) { - /* Start of an object or group of objects. */ - i = -1; - do { - /* There are probably better ways to read a string from */ - /* a file, but this does allow you to do error checking */ - /* (which I'm not doing) on a per character basis. */ - ++i; - fread( &(name[i]), sizeof( char ), 1, input); - } while( name[i] != '\0' ); - - if ( i != 0 ) - strncpy( pPSET[pset].name, name, sizeof( pPSET[pset].name ) - 1 ); - else - strcpy( pPSET[pset].name , "(unnamed)" ); - strlwr( pPSET[pset].name ); - -// indent(); -// fprintf(stdout,"OBJECT START: %s\n",name); - fread( &count, sizeof(int), 1, input); - count = BigLong(count); - ++iLevel; - if (count != 0) { -// indent(); -// fprintf(stdout,"NUMBER OF TRIANGLES: %d\n",count); - - i = -1; - do { - ++i; - fread( &(tex[i]), sizeof( char ), 1, input); - } while( tex[i] != '\0' ); - -/* - if ( i != 0 ) - strncpy( pPSET[pset].texname, tex, sizeof( pPSET[pset].texname ) - 1 ); - else - strcpy( pPSET[pset].texname, "(unnamed)" ); - strlwr( pPSET[pset].texname ); -*/ - -// indent(); -// fprintf(stdout," Object texture name: '%s'\n",tex); - } - - /* Else (count == 0) this is the start of a group, and */ - /* no texture name is present. */ - } - else if (start == FLOAT_END) { - /* End of an object or group. Yes, the name should be */ - /* obvious from context, but it is in here just to be */ - /* safe and to provide a little extra information for */ - /* those who do not wish to write a recursive reader. */ - /* Mea culpa. */ - --iLevel; - i = -1; - do { - ++i; - fread( &(name[i]), sizeof( char ), 1, input); - } while( name[i] != '\0' ); - - if ( i != 0 ) - strncpy( pPSET[pset].name, name, sizeof( pPSET[pset].name ) - 1 ); - else - strcpy( pPSET[pset].name , "(unnamed)" ); - - strlwr( pPSET[pset].name ); - -// indent(); -// fprintf(stdout,"OBJECT END: %s\n",name); - continue; - } - } - -// -// read the triangles -// - if ( count > 0 ) - { - pPSET[pset].triangles = ptri; - ReadPolysetGeometry( pPSET[0].triangles, input, count, ptri ); - ptri += count; - pPSET[pset].numtriangles = count; - if ( ++pset >= POLYSET_MAXPOLYSETS ) - { - Error ("Error: too many polysets; increase POLYSET_MAXPOLYSETS\n"); - } - } - } - - *numpsets = pset; - - fclose (input); -} - |