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/*
* PARSEC - Subsystem Independent Miscellaneous Drawing Code
*
* $Author: uberlinuxguy $ - $Date: 2004/09/15 12:25:21 $
*
* Orginally written by:
* Copyright (c) Clemens Beer <cbx@parsec.org> 2001-2002
*
* 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 the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// C library
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// compilation flags/debug support
#include "config.h"
#include "debug.h"
// general definitions
#include "general.h"
#include "objstruc.h"
// global externals
#include "globals.h"
// subsystem headers
#include "vid_defs.h"
// drawing subsystem
#include "d_iter.h"
#include "d_misc.h"
// mathematics header
#include "utl_math.h"
// proprietary module headers
#include "e_color.h"
#include "ro_api.h"
#include "ro_supp.h"
// draw a line in world space -------------------------------------------------
//
void D_LineWorld( const Vector3* start, const Vector3* end, const colrgba_s* color )
{
IterLine3 itline;
itline.NumVerts = 2;
itline.flags = ITERFLAG_LS_ANTIALIASED | ITERFLAG_Z_DIV_XYZ | ITERFLAG_Z_TO_DEPTH | ITERFLAG_NONDESTRUCTIVE;
itline.itertype = iter_rgba;
itline.raststate = rast_zbuffer;
itline.rastmask = rast_nomask;
itline.Vtxs[ 0 ].W = GEOMV_1;
itline.Vtxs[ 0 ].R = color->R;
itline.Vtxs[ 0 ].G = color->G;
itline.Vtxs[ 0 ].B = color->B;
itline.Vtxs[ 0 ].A = color->A;
itline.Vtxs[ 0 ].flags = ITERVTXFLAG_NONE;
itline.Vtxs[ 1 ].W = GEOMV_1;
itline.Vtxs[ 1 ].R = color->R;
itline.Vtxs[ 1 ].G = color->G;
itline.Vtxs[ 1 ].B = color->B;
itline.Vtxs[ 1 ].A = color->A;
itline.Vtxs[ 1 ].flags = ITERVTXFLAG_NONE;
MtxVctMUL( ViewCamera, start, (Vertex3*)&itline.Vtxs[ 0 ] );
MtxVctMUL( ViewCamera, end, (Vertex3*)&itline.Vtxs[ 1 ] );
// setup transformation matrix
D_LoadIterMatrix( NULL );
D_DrawIterLine3( &itline, 0x00 );
}
// draw a frame of reference as a axis cross ----------------------------------
//
void D_FrameOfReference( const Xmatrx frame, const Vector3* transl )
{
ASSERT( frame != NULL );
Vector3 orig;
Vector3 axis[ 3 ];
FetchXVector( frame, &axis[ 0 ] );
FetchYVector( frame, &axis[ 1 ] );
FetchZVector( frame, &axis[ 2 ] );
FetchTVector( frame, &orig );
// scale axis
VECMULS( &axis[ 0 ], &axis[ 0 ], INT_TO_GEOMV( 30 ) );
VECMULS( &axis[ 1 ], &axis[ 1 ], INT_TO_GEOMV( 30 ) );
VECMULS( &axis[ 2 ], &axis[ 2 ], INT_TO_GEOMV( 30 ) );
VECADD( &axis[ 0 ], &axis[ 0 ], &orig );
VECADD( &axis[ 1 ], &axis[ 1 ], &orig );
VECADD( &axis[ 2 ], &axis[ 2 ], &orig );
if ( transl != NULL ) {
VECADD( &axis[ 0 ], &axis[ 0 ], transl );
VECADD( &axis[ 1 ], &axis[ 1 ], transl );
VECADD( &axis[ 2 ], &axis[ 2 ], transl );
VECADD( &orig, &orig, transl );
}
colrgba_s color;
SETRGBA( &color, 255, 0, 0, 255 );
D_LineWorld( &orig, &axis[ 0 ], &color );
SETRGBA( &color, 0, 255, 0, 255 );
D_LineWorld( &orig, &axis[ 1 ], &color );
SETRGBA( &color, 0, 0, 255, 255 );
D_LineWorld( &orig, &axis[ 2 ], &color );
}
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