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Fix division by zero in some cases.

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This commit is contained in:
Guido van Rossum 1991-12-03 17:25:52 +00:00
parent 444339d463
commit 696f91151c
1 changed files with 4 additions and 3 deletions
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7
Demo/sgi/video/video.py
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@ -98,11 +98,12 @@ def initcmap(ybits,ibits,qbits,chrompack):
for y in range(maxy): for y in range(maxy):
yv = float(y)/float(maxy-1) yv = float(y)/float(maxy-1)
for i in range(maxi): for i in range(maxi):
iv = (float(i)/float(maxi-1))-0.5 if maxi = 1: iv = 0
else: iv = (float(i)/float(maxi-1))-0.5
for q in range(maxq): for q in range(maxq):
qv = (float(q)/float(maxq-1))-0.5 if maxq = 1: qv = 0
else: qv = (float(q)/float(maxq-1))-0.5
index = 2048 + y + (i << ybits) + (q << (ybits+ibits)) index = 2048 + y + (i << ybits) + (q << (ybits+ibits))
rv,gv,bv = colorsys.yiq_to_rgb(yv,iv,qv) rv,gv,bv = colorsys.yiq_to_rgb(yv,iv,qv)
r,g,b = int(rv*255.0), int(gv*255.0), int(bv*255.0) r,g,b = int(rv*255.0), int(gv*255.0), int(bv*255.0)
if index < 4096 - 256: if index < 4096 - 256: