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14 * $Source: /cvs/cvsroot/d2x/3d/setup.c,v $
17 * $Date: 2001-01-31 15:17:48 $
19 * Setup for 3d library
21 * $Log: not supported by cvs2svn $
22 * Revision 1.1.1.1 2001/01/19 03:29:58 bradleyb
25 * Revision 1.3 1999/10/07 02:27:14 donut
26 * OGL includes to remove warnings
28 * Revision 1.2 1999/09/21 04:05:55 donut
29 * mostly complete OGL implementation (still needs bitmap handling (reticle), and door/fan textures are corrupt)
31 * Revision 1.1.1.1 1999/06/14 21:57:50 donut
32 * Import of d1x 1.37 source.
34 * Revision 1.4 1995/10/11 00:27:04 allender
35 * bash free_num_points to 0
37 * Revision 1.3 1995/09/13 11:31:58 allender
38 * calc for fCanv_w2 and fCanv_h2
40 * Revision 1.2 1995/06/25 21:57:57 allender
41 * *** empty log message ***
43 * Revision 1.1 1995/05/05 08:52:54 allender
46 * Revision 1.1 1995/04/17 03:59:01 matt
57 static char rcsid[] = "$Id: setup.c,v 1.2 2001-01-31 15:17:48 bradleyb Exp $";
75 //initialize the 3d system
78 // div0_init(DM_ERROR);
82 //close down the 3d system
83 void g3_close(void) {}
85 extern void init_interface_vars_to_assembler(void);
88 void g3_start_frame(void)
92 //set int w,h & fixed-point w,h/2
93 Canv_w2 = (Canvas_width = grd_curcanv->cv_bitmap.bm_w)<<15;
94 Canv_h2 = (Canvas_height = grd_curcanv->cv_bitmap.bm_h)<<15;
96 fCanv_w2 = f2fl((Canvas_width = grd_curcanv->cv_bitmap.bm_w)<<15);
97 fCanv_h2 = f2fl((Canvas_height = grd_curcanv->cv_bitmap.bm_h)<<15);
100 //compute aspect ratio for this canvas
102 s = fixmuldiv(grd_curscreen->sc_aspect,Canvas_height,Canvas_width);
104 if (s <= f1_0) { //scale x
106 Window_scale.y = f1_0;
109 Window_scale.y = fixdiv(f1_0,s);
110 Window_scale.x = f1_0;
113 Window_scale.z = f1_0; //always 1
118 Win32_start_frame ();
123 init_interface_vars_to_assembler(); //for the texture-mapper
129 //this doesn't do anything, but is here for completeness
130 void g3_end_frame(void)
139 // Assert(free_point_num==0);