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ppmdiff detects lack of changes more quickly. Improved cache robustness.

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- scripts/ppmdiff/ppmdiff.c (main): do a quick memcmp to detect absence of
  changes instead of comparing pixel by pixel (saves 30% of total run time
  when remaking ben-wpan/atrf from cache)
- scripts/schhist2web: added title and copyright header
- scripts/schhist2web: create $out/names after deleting the cache (-n)
- scripts/schhist2web: fat_* directories were created under $out, not $cache
- scripts/schhist2web: remove ppm_* and fat_* directories being worked on if
  we fail to complete the process for some reason
This commit is contained in:
Werner Almesberger
2010-08-27 13:40:38 -03:00
parent 5761b6e650
commit 94dc35ed98
2 changed files with 24 additions and 7 deletions
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8
scripts/ppmdiff/ppmdiff.c
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@@ -376,16 +376,18 @@ int main(int argc, char *const *argv)
old = load_ppm(argv[optind], &x, &y);
new = load_ppm(argv[optind+1], &x, &y);
d = diff(old, new, x, y);
if (shadow_old) {
a = load_ppm(shadow_old, &x, &y);
b = load_ppm(shadow_new, &x, &y);
if (!force && !memcmp(a, b, x*y*3))
return 1;
shadow_diff(a, b, x, y);
}
if (!force && !areas && !memcmp(old, new, x*y*3))
return 1;
d = diff(old, new, x, y);
if (frame_dist)
mark_areas(d, x, y);
if (!areas && !force)
return 1;
if (out_name) {
out = fopen(out_name, "w");