Test stack for Gif animation and Background Patterns

[BNig]

Hi Alejandro,

I used Livecode 4.6.1

The animation looks good, no black stripes. In the original dimensions of
your stack the processore usage is about 24% when animating, 10% when
"idling" (with the gifs animated without the backgroundpattern.

>Interesting enough, this code change does not show any improvement in XP. 
>Maybe in Windows 7 or Vista, but not in XP. 

The changes I made were not for speed or processor load, just for Livecode
to do its cleanup and make the stack responsive to user interaction like
dragging the stack around and accept mouse events.

I had stacks in a long repeat loop and a lot of image processing that led to
an increase in memory usage and eventually a crash in livecode. The crash
was gone once I used send in time. This apparently gave Livecode enough time
to release memory etc.

Kind regards

Bernd


Alejandro Tejada wrote:
> 
> Hi Bernd,
> 
> on Tue May 10 14:43:56
> Bernd Niggemann wrote:
> 
>> Hi Alejandro,
>> tested your stack in Livecode 4.6, MacOSX 10.6.7,
>> MacBook Pro Intel i5 2.53 GHz
>> Processor usage in full stack size 1920x1200 37%
>> no crash but unresponsive stack.
> 
> In Windows XP, processor usage raise from 01 to 09,
> but memory usage barely goes from 35mb to 40mb.
> 
>> changed:
>> repeat until the mouse is down
>> --  code
>>  wait tFrameDelay millisecond with messages
>> -- code
>>  wait 0 milliseconds with messages
>>  end repeat
> 
> Interesting enough, this code change does not show any improvement in XP.
> Maybe in Windows 7 or Vista, but not in XP.
> 
>> I think the way you coded it you choked Livecode since it had no chance
>> to
>> do a cleanup in the repeat loop.
> 
> This is a good explanation. Recently, running this stack:
> http://revonline2.runrev.com/stack/577/Kaleidoscope-Deluxe
> I was unable to stop the circle animation showed in third card...
> 
>> With the changes I made the stack is responsive and the animation stops
>> as
>> soon as the mouse is down. Previously the mouseClick did not stop the
>> animation for me.
>> I still would do this rather in a send in time manner instead of a repeat
>> loop.
> 
> Yes, "send in time" is a construct that Scott Rossi demostrated in this
> stack:
> http://andregarzia.on-rev.com/alejandro/stacks/walkingman_Rossi.zip
> 
> By the way, Did animated gif look fine in Mac OS X? No black trails?
> Which LiveCode version are you using?
> 
> Thanks for your time testing this stack! :-)
> 
> Al
> 

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