Re: Gdk::Pixbuf::create_from_data problem

[Aurélien KAMEL <aurelien kamel gmail com>]

Problem solved by copying each pixel value 3 time as if it was an RGB  
image instead of a grayscale one.
Not very convenient but it work ...

Thanks,
Aurélien

Le 24 avr. 06 à 23:13, Aurélien KAMEL a écrit :

> It don't work when multiplying my rowstride by 3, it segfault,  
> probably because the source array is width*height and not  
> width*height*3.
>
> How must be organized the data in the array that I gave as argument  
> to create_from_data ?
>
> Any other solution ?
>
> Aurélien
>
> Le 24 avr. 06 à 22:43, Bob Caryl a écrit :
>
> > Aurélien KAMEL wrote:
> > > Hi everyone,
> > >
> > > I'm trying to create a Pixbuf from an array of pixels. The array  
> > > size is width*height, with only one channel because it's a  
> > > grayscale image.
> > > I call create_from_data like this :
> > >
> > > Gdk::Pixbuf::create_from_data(mp.getImg(i,j)->getSrc(), //  
> > > guint8* array (1024*768)
> > >                     Gdk::COLORSPACE_RGB,false,8,
> > >                     mp.getImg(i,j)->getSizeX(), // 1024
> > >                     mp.getImg(i,j)->getSizeY(), // 768
> > >                     mp.getImg(i,j)->getSizeX()); // 1024
> > >
> > > But when I save it to a file or display it I see my image  
> > > repeated horizontally three times.
> > >
> > > I guess it's a problem of channel number ?
> > >
> > > How can I solve it ?
> > >
> > > Thanks for your help,
> > > Aurélien
> > >
> > > _______________________________________________
> > > gtkmm-list mailing list
> > > gtkmm-list gnome org
> > > http://mail.gnome.org/mailman/listinfo/gtkmm-list
> > Multiply your rowstride by 3...  it should work then.
> >
> > Bob
> > <bob.vcf>
>
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