nanogui: Color display with microwin CVS version, nxlib 0.45, fltk-1.1.7
Subject:
Re: [nanogui] Color display with microwin CVS version, nxlib 0.45,
fltk-1.1.7
From:
Matteo Facchinetti ####@####.####
Date:
7 Jan 2008 09:48:07 -0000
Message-Id: <4781F54B.9070805@sirius-es.it>
Hi Thomas,
In my system I'm working with the same software (fltk - nxlib - nano-x)
and I think that I've encountered the same problem.
I'm working in a 256 color with Palette video card.
Your graphic card works with a hw palette or in TrueColor?
I need this info for give you help.
> Also the image is
> shifted diagonally, the left top corner is right, but the
> left bottom corner is nearly the right bottom corner.
>
>
Image size must be word aligned (long).
Regards,
Matteo Facchinetti
Thomas Malkus wrote:
> Hello,
>
> I have a problem to display the right colors. I am use a system
> with Linux on a ARM AT91RM9200 controller with a 320x240 pixel
> display with 8bpp (256 Colors), kernel 2.6.12 and framebuffer.
>
> All the nanox demos have the correct colors, display of text
> and images are ok. With fltk-1.1.7 I have the problem, that
> the colors are totally wrong. This I could solve if I had changed
> the display info in OpenDis.c of nxlib. I set the rmask, gmask and
> bmask to fixed values:
>
> sinfo.rmask = 0xe0
> sinfo.gmask = 0x1c
> sinfo.bmask = 0x03
> sinfo.bpp = 8
>
> Now the colors for text, widgets and others are ok. But the colors
> for images, i.e. gif, bmp and xpm where wrong if I use the fltk-1.17
> functions to display a image:
>
> box = new Fl_Box(0,0,200,100);
> xpm = new Fl_XPM_Image("/data/fonts/logo.xpm");
> box->image(xpm);
>
>
> I created a xpm image (the same happens with gif and bmp) with
> TheGimp, three color bars using only red (0xff), green (0xff)
> and blue (0xff). Blue is nearly ok(to bright), but green is
> violett and red is green but to bright, too.
> Also the image is
> shifted diagonally, the left top corner is right, but the
> left bottom corner is nearly the right bottom corner.
>
> If I start a second process with nxview to display the same image
> (as gif or bmp) it will be displayed without errors, but all the
> colors of the underlying fltk-1.1.7 program where changed until
> I start it new.
>
>
> I think the problem is nxlib. But where I could have a look to
> solve this? What could I try?
>
> Kind regards, Tom
>
>
>
>
>
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