140 lines
3.2 KiB
C
140 lines
3.2 KiB
C
/*
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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/*
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* $Source: /cvs/cvsroot/d2x/3d/setup.c,v $
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* $Revision: 1.1.1.1 $
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* $Author: bradleyb $
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* $Date: 2001-01-19 03:29:58 $
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*
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* Setup for 3d library
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*
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* $Log: not supported by cvs2svn $
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* Revision 1.3 1999/10/07 02:27:14 donut
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* OGL includes to remove warnings
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*
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* Revision 1.2 1999/09/21 04:05:55 donut
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* mostly complete OGL implementation (still needs bitmap handling (reticle), and door/fan textures are corrupt)
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*
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* Revision 1.1.1.1 1999/06/14 21:57:50 donut
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* Import of d1x 1.37 source.
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*
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* Revision 1.4 1995/10/11 00:27:04 allender
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* bash free_num_points to 0
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*
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* Revision 1.3 1995/09/13 11:31:58 allender
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* calc for fCanv_w2 and fCanv_h2
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*
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* Revision 1.2 1995/06/25 21:57:57 allender
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* *** empty log message ***
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*
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* Revision 1.1 1995/05/05 08:52:54 allender
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* Initial revision
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*
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* Revision 1.1 1995/04/17 03:59:01 matt
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* Initial revision
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*
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*
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*/
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#ifdef RCS
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static char rcsid[] = "$Id: setup.c,v 1.1.1.1 2001-01-19 03:29:58 bradleyb Exp $";
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#endif
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#include <conf.h>
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#include <stdlib.h>
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#include "error.h"
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#include "fix.h"
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#include "vecmat.h"
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#include "gr.h"
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#include "3d.h"
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#include "globvars.h"
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#include "clipper.h"
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#ifdef OGL
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#include "ogl_init.h"
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#endif
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//initialize the 3d system
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void g3_init(void)
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{
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// div0_init(DM_ERROR);
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atexit(g3_close);
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}
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//close down the 3d system
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void g3_close(void) {}
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extern void init_interface_vars_to_assembler(void);
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//start the frame
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void g3_start_frame(void)
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{
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fix s;
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//set int w,h & fixed-point w,h/2
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Canv_w2 = (Canvas_width = grd_curcanv->cv_bitmap.bm_w)<<15;
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Canv_h2 = (Canvas_height = grd_curcanv->cv_bitmap.bm_h)<<15;
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#ifdef __powerc
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fCanv_w2 = f2fl((Canvas_width = grd_curcanv->cv_bitmap.bm_w)<<15);
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fCanv_h2 = f2fl((Canvas_height = grd_curcanv->cv_bitmap.bm_h)<<15);
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#endif
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//compute aspect ratio for this canvas
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s = fixmuldiv(grd_curscreen->sc_aspect,Canvas_height,Canvas_width);
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if (s <= f1_0) { //scale x
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Window_scale.x = s;
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Window_scale.y = f1_0;
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}
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else {
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Window_scale.y = fixdiv(f1_0,s);
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Window_scale.x = f1_0;
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}
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Window_scale.z = f1_0; //always 1
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init_free_points();
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#ifdef D1XD3D
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Win32_start_frame ();
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#else
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#ifdef OGL
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ogl_start_frame();
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#else
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init_interface_vars_to_assembler(); //for the texture-mapper
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#endif
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#endif
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}
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//this doesn't do anything, but is here for completeness
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void g3_end_frame(void)
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{
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#ifdef D1XD3D
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Win32_end_frame ();
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#endif
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#ifdef OGL
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ogl_end_frame();
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#endif
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// Assert(free_point_num==0);
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free_point_num = 0;
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}
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