nanogui: Performance : FLTK+Nxlib+Nano-X


Previous by date: 2 Aug 2012 04:22:21 -0000 Re: Performance : FLTK+Nxlib+Nano-X, Pete Klemm
Next by date: 2 Aug 2012 04:22:21 -0000 Re: Performance : FLTK+Nxlib+Nano-X, Arun Ram M
Previous in thread: 2 Aug 2012 04:22:21 -0000 Re: Performance : FLTK+Nxlib+Nano-X, Pete Klemm
Next in thread: 2 Aug 2012 04:22:21 -0000 Re: Performance : FLTK+Nxlib+Nano-X, Arun Ram M

Subject: Re: [nanogui] Performance : FLTK+Nxlib+Nano-X
From: Arun Ram M ####@####.####
Date: 2 Aug 2012 04:22:21 -0000
Message-Id: <CADA=BE4UgSsHwNW8s313DnXeR962gaZSDiadYjt0Th6t0VfTpw@mail.gmail.com>

Pete ,

No, i haven't added freetype support. Am currently using pcf fonts only.
Have been trying to debug it and it looks like it has something to do
with timers from the mouse event handling for the touchscreen. Haven't
yet figured out exactly ! Any ideas ?
Do you have this setup for an ARM target ?

Now that you mention True Type fonts, i have been trying to add
support for true type fonts. I cross compiled freetype 2 for the arm
target and modified nano-x appropriately. that worked fine.
Now while i try to enable xft in FLTK, i understand i needed to build
XFT. Trying to build that, i realized XFT needs FontConfig.
So seems like am getting into a chain of dependencies here and trying
to build all those libraries for the ARM target !
Is there a simpler way to do this ?

Thanks,
Arun

On Wed, Aug 1, 2012 at 9:48 PM, Pete Klemm ####@####.#### wrote:
> Arun,
>
> I have the same setup FLTK-1.3, NXLIB (development head),
> Nano-X (development head) with FreeType2 enabled.
>
> If you are using Truetype fonts it may take a long time
> to load the font for the first time, but after that it
> is cached (if enabled). If TrueType, what version of
> FreeType are you using. I am using FreeType 2.3.9
>
> Pete
>
>
> On 7/31/2012 12:37 PM, Arun Ram M wrote:
>>
>> Hello,
>>
>> Am using FLTK 1.3 , Nxlib (development head) , Nano-X (development
>> head) for an ARM touch screen target.
>>
>> I upgraded it from FLTK 1.1.7+Nxlib 0.45 + Nano-X .91 to add UTF-8
>> support.
>>
>> On a button press, am displaying text in an information box. I see a
>> long delay for the text to be rendered. But if i keep the touch screen
>> pressed after the button press, the rendering is extremely quickly.
>>
>> I tried this with FLTK1.1.7 + the latest of nxlib+nano-x and this
>> delay was not seen.
>>
>> Unable to understand why this could be happening. Any ideas ?
>>
>> Thanks,
>> Arun
>>
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Previous by date: 2 Aug 2012 04:22:21 -0000 Re: Performance : FLTK+Nxlib+Nano-X, Pete Klemm
Next by date: 2 Aug 2012 04:22:21 -0000 Re: Performance : FLTK+Nxlib+Nano-X, Arun Ram M
Previous in thread: 2 Aug 2012 04:22:21 -0000 Re: Performance : FLTK+Nxlib+Nano-X, Pete Klemm
Next in thread: 2 Aug 2012 04:22:21 -0000 Re: Performance : FLTK+Nxlib+Nano-X, Arun Ram M


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