Writing a DIB image

Hi,

I think I may have found an issue with writing a DIB.

I load an image that is basically an 8bit monochrome image.

Image reports the depth as 8, greyscale and monochrome.

I make sure that the image is marked as not monochrome as I want to create
a DIB that is 8bit's (not 1 bit depth) as follows:

      image.monochrome( false );
      image.type( PaletteType );
      image.classType( PseudoClass );

However in dib.c, WriteDIBImage:

The parameter image_info is ignored.

which means that the lines around 1185 are executed instead of obeying what
is in image_info.

     if (characteristics.monochrome)
        dib_info.bits_per_pixel=1;

In fact the settings in image_info are not used very much at all in this
method.

I don't know enough about GraphicsMagik to known if this is expected
behaviour. However I would expect if I say that the image is not monochrome
then WriteDIBImage should respect my settings.

So is there another way of ensuring that I can write a DIB in the depth
that I requested?

Thanks
Damian

PS:
Yep I know that DIB's are ancient and a bit naff, but the software I am
updating is riddled with them... so it has to be one change at a time.

------------------------------------------------------------------------------

_______________________________________________
Graphicsmagick-help mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/graphicsmagick-help