1 <?xml version="1.0" encoding="ISO-8859-1"?>
3 <screensaver name="blitspin" _label="BlitSpin">
7 <number id="delay" type="slider" arg="-delay %"
8 _label="Fuzzy rotation speed" _low-label="Slow" _high-label="Fast"
9 low="1" high="800000" default="500000"
12 <number id="delay2" type="slider" arg="-delay2 %"
13 _label="90 degree rotation speed" _low-label="Slow" _high-label="Fast"
14 low="1" high="800000" default="500000"
17 <number id="duration" type="slider" arg="-duration %"
18 _label="Duration" _low-label="10 seconds" _high-label="10 minutes"
19 low="10" high="600" default="120"/>
21 <!-- <file id="bitmap" _label="Bitmap to rotate" arg="-bitmap %"/> -->
23 <xscreensaver-image />
25 <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
29 Repeatedly rotates a bitmap by 90 degrees by using logical operations:
30 the bitmap is divided into quadrants, and the quadrants are shifted
31 clockwise. Then the same thing is done again with progressively
32 smaller quadrants, except that all sub-quadrants of a given size are
33 rotated in parallel. As you watch it, the image appears to dissolve
34 into static and then reconstitute itself, but rotated.
36 Written by Jamie Zawinski; 1992.