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Evas: Filter: Brightness: Fix clamp ranges, and don't double negate 

Basically it's a clamp function...

SVN revision: 59068
This commit is contained in:
Brett Nash 2011-05-01 06:39:26 +00:00
parent 370f868003
commit 94275377e5
1 changed files with 6 additions and 6 deletions
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12
legacy/evas/src/lib/canvas/evas_filter.c
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@ -1187,9 +1187,9 @@ brightness_filter(Evas_Filter_Info *info, RGBA_Image *src, RGBA_Image *dst)
g = G_VAL(in);
b = B_VAL(in);
adjdelta = (a * delta) >> 8;
r = MIN(r + adjdelta, 255);
g = MIN(g + adjdelta, 255);
b = MIN(b + adjdelta, 255);
r = MIN(r + adjdelta, a);
g = MIN(g + adjdelta, a);
b = MIN(b + adjdelta, a);
*out = ARGB_JOIN(a, r ,g, b);
out++;
in++;
@ -1208,9 +1208,9 @@ brightness_filter(Evas_Filter_Info *info, RGBA_Image *src, RGBA_Image *dst)
g = G_VAL(in);
b = B_VAL(in);
adjdelta = (a * delta) >> 8;
r = MAX(r - adjdelta, 0);
g = MAX(g - adjdelta, 0);
b = MAX(b - adjdelta, 0);
r = MAX(r + adjdelta, 0);
g = MAX(g + adjdelta, 0);
b = MAX(b + adjdelta, 0);
*out = ARGB_JOIN(a, r ,g, b);
out++;
in++;