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Comparing ray/src/px/pmapgen.c (file contents):
Revision 2.2 by greg, Wed Jul 24 09:18:20 1996 UTC vs.
Revision 2.4 by schorsch, Sun Mar 28 20:33:14 2004 UTC

# Line 1 | Line 1
1 – /* Copyright (c) 1995 Regents of the University of California */
2 –
1   #ifndef lint
2 < static char SCCSid[] = "$SunId$ LBL";
2 > static const char       RCSid[] = "$Id$";
3   #endif
6 –
4   /*
5   * pmapgen.c: general routines for 2-D perspective mappings.
6   * These routines are independent of the poly structure,
# Line 12 | Line 9 | static char SCCSid[] = "$SunId$ LBL";
9   * Paul Heckbert        5 Nov 85, 12 Dec 85
10   */
11  
15 – static char rcsid[] = "$Header$";
12   #include <stdio.h>
13   #include "pmap.h"
14   #include "mx3.h"
# Line 36 | Line 32 | static char rcsid[] = "$Header$";
32   * computing it symbolically.
33   */
34          
35 < pmap_quad_rect(u0, v0, u1, v1, qdrl, QR)
36 < double u0, v0, u1, v1;          /* bounds of rectangle */
37 < double qdrl[4][2];              /* vertices of quadrilateral */
38 < double QR[3][3];                /* qdrl->rect transform (returned) */
35 > extern int
36 > pmap_quad_rect(
37 >        double u0,              /* bounds of rectangle */
38 >        double v0,
39 >        double u1,
40 >        double v1,
41 >        double qdrl[4][2],              /* vertices of quadrilateral */
42 >        double QR[3][3]         /* qdrl->rect transform (returned) */
43 > )
44   {
45      int ret;
46      double du, dv;
# Line 84 | Line 85 | double QR[3][3];               /* qdrl->rect transform (returned) *
85   *      (0,1) --> qdrl[3]
86   */
87  
88 < pmap_square_quad(qdrl, SQ)
89 < register double qdrl[4][2];     /* vertices of quadrilateral */
90 < register double SQ[3][3];       /* square->qdrl transform */
88 > extern int
89 > pmap_square_quad(
90 >        register double qdrl[4][2],     /* vertices of quadrilateral */
91 >        register double SQ[3][3]        /* square->qdrl transform */
92 > )
93   {
94      double px, py;
95  

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