[compiz] fonts unreadable on resize

[Vasek Potocek]

Hello,

be sure you had a look really at the first moment the resizeinfo plugin is used 
after it was *loaded* (you can unload and re-load it if you want to try). In 
subsequent resize operations, the same rectangle is re-used, so its content is 
bad from the beginning.
Notice the double "x" in your picture - I'm quite sure it stems from this 
redrawing issue.

About your last question, looks like this bunch of lines do it:
http://cgit.compiz-fusion.org/fusion/plugins-main/tree/src/resizeinfo/resizeinfo.c#n184

PS. Hope you don't mind sending this back to the list, I forgot about the "Reply 
to all" rule in my first mail.

Vasek

Bill Moseley napsal:
> On Sat, Dec 29, 2007 at 12:39:25AM +0100, Vasek Potocek wrote:
>> Hello,
>>
>> I have noticed this also, but have completely forgot since. I found this 
>> was a problem with unclear understanding of filling with a 
>> (semi-)transparent color in the X library: imagine you want to clear your 
>> semi-transparent window for subsequent drawing. So you use some fill 
>> function to fill it with a semi-transparent color. Now various X versions 
>> behave in either of the following two ways:
>> - setting all the influenced pixels to this color,
>> - blending the color to the background.
>> Newer versions seem to do the latter, but I have no real comparison. It can 
>> equally well be the difference of x86 / x86_64 or anything. The problem is 
>> that we need the former behaviour, but have not much ways to do so.
>>
>> [Your problem is that any time the text is to be changed, the latter 
>> happens instead of the former and the new text is drawn over the old, so 
>> that it quickly cummulates into solid black.]
> 
> I will note that the fonts are un-readable the instant they appear
> -- before any resizing occurs.  But, I'm not sure if that means what
> you describe is happening my my case or not.
> 
> Any idea how Compiz selects the font for that the Resize Info plugin?