Revision: 55624
http://sourceforge.net/p/brlcad/code/55624
Author: brlcad
Date: 2013-06-01 03:25:26 +0000 (Sat, 01 Jun 2013)
Log Message:
-----------
main() isn't that complicated, doesn't benefit from the min/max scope
Modified Paths:
--------------
brlcad/trunk/src/util/dpix-pix.c
Modified: brlcad/trunk/src/util/dpix-pix.c
===================================================================
--- brlcad/trunk/src/util/dpix-pix.c 2013-06-01 03:22:23 UTC (rev 55623)
+++ brlcad/trunk/src/util/dpix-pix.c 2013-06-01 03:25:26 UTC (rev 55624)
@@ -56,6 +56,8 @@
double b; /* intercept */
char *ifname;
+ double min, max; /* high usage items */
+
if (argc < 2) {
bu_exit(1, "Usage: dpix-pix file.dpix > file.pix\n");
}
@@ -72,46 +74,41 @@
bu_exit(2, "dpix-pix: binary output directed to terminal, aborting\n");
}
- {
- double min, max; /* high usage items */
+ min = INFINITY;
+ max = -INFINITY;
- min = INFINITY;
- max = -INFINITY;
-
- while (1) {
- got = read(fd, (char *)&doub[0], NUM*sizeof(doub[0]));
- if (got <= 0) {
- if (got < 0) {
- perror("dpix-pix READ ERROR");
- }
- break;
+ while (1) {
+ got = read(fd, (char *)&doub[0], NUM*sizeof(doub[0]));
+ if (got <= 0) {
+ if (got < 0) {
+ perror("dpix-pix READ ERROR");
}
- count = got / sizeof(doub[0]);
- ep = &doub[count];
- for (dp = &doub[0]; dp < ep;) {
- double val = *dp++;
+ break;
+ }
+ count = got / sizeof(doub[0]);
+ ep = &doub[count];
+ for (dp = &doub[0]; dp < ep;) {
+ double val = *dp++;
- V_MIN(min, val);
- V_MAX(max, val);
- }
+ V_MIN(min, val);
+ V_MAX(max, val);
}
+ }
- lseek(fd, 0, 0); /* rewind(fp); */
+ lseek(fd, 0, 0); /* rewind(fp); */
+ /* This section uses the maximum and the minimum values found to
+ * compute the m and the b of the line as specified by the
+ * equation y = mx + b.
+ */
+ fprintf(stderr, "min=%f, max=%f\n", min, max);
+ if (max < min) {
+ bu_exit(1, "MINMAX: max less than min!\n");
+ }
- /* This section uses the maximum and the minimum values found to
- * compute the m and the b of the line as specified by the
- * equation y = mx + b.
- */
- fprintf(stderr, "min=%f, max=%f\n", min, max);
- if (max < min) {
- bu_exit(1, "MINMAX: max less than min!\n");
- }
+ m = (255 - 0)/(max - min);
+ b = (-255 * min)/(max - min);
- m = (255 - 0)/(max - min);
- b = (-255 * min)/(max - min);
- }
-
while (1) {
char *cp; /* ptr to c */
double mm; /* slope */
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