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root/radiance/ray/src/px/panim.c
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Comparing ray/src/px/panim.c (file contents):
Revision 1.6 by greg, Thu Apr 5 13:58:45 1990 UTC vs.
Revision 2.3 by schorsch, Mon Jun 30 14:59:12 2003 UTC

# Line 1 | Line 1
1 – /* Copyright (c) 1988 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   *  Send pictures to PC animation system.
6   *
# Line 11 | Line 8 | static char SCCSid[] = "$SunId$ LBL";
8   */
9  
10   #include <stdio.h>
11 + #include <string.h>
12  
13   #include "random.h"
14   #include "color.h"
# Line 103 | Line 101 | char   *file;
101          }
102                                                  /* get dimensions */
103          getheader(fp, NULL);
104 +        if (checkheader(fp, COLRFMT, NULL) < 0) {
105 +                fputs(file, stderr);
106 +                fputs(": not a Radiance picture\n", stderr);
107 +                exit(1);
108 +        }
109          if (fgetresolu(&xres, &yres, fp) != (YMAJOR|YDECR) ||
110                          xres > SCANLINE || yres > NUMSCANS) {
111                  fputs(file, stderr);
# Line 113 | Line 116 | char   *file;
116          xbeg = (SCANLINE-xres)/2;
117          ybeg = (NUMSCANS-yres)/2;
118                                                  /* clear output */
119 <        bzero(sc_frame_arr, sizeof(sc_frame_arr));
119 >        memset(sc_frame_arr, '\0', sizeof(sc_frame_arr));
120                                                  /* get frame */
121          for (y = yres-1; y >= 0; y--) {
122                  if (freadcolrs(scanin, xres, fp) < 0) {
# Line 144 | Line 147 | compgamma()                            /* compute gamma correction map */
147          register int  i, val;
148  
149          for (i = 0; i < 256; i++) {
150 <                val = pow(i/256.0, 1.0/GAMMA) * 256.0;
150 >                val = pow((i+0.5)/256.0, 1.0/GAMMA) * 256.0;
151                  if (val > 248) val = 248;
152                  gammamap[i] = val;
153          }

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