[directfb-cvs] DirectFB

[Denis Oliver Kropp via CVS]

CVSROOT:        /cvs/directfb
Module name:    DirectFB
Changes by:     dok     20010810 01:00:33

Modified files:
        include        : directfb.h 
        interfaces/IDirectFBImageProvider: idirectfbimageprovider_gif.c 
                                           idirectfbimageprovider_jpeg.c 
                                           idirectfbimageprovider_png.c 

Log message:
Added 'IDirectFBImageProvider->GetImageDescription' which fills out
a 'DFBImageDescription', it contains a 'DFBImageCapabilities' field
with the flags 'DICAPS_ALPHACHANNEL' and 'DICAPS_COLORKEY' for now.
Additionally the Image Description contains the colorkey if
DICAPS_COLORKEY is set, e.g. when loading a transparent GIF.

The GIF loader no longer generates an alphachannel from the colorkey,
because it turned the transparent color into black.

If you want to have transparent GIFs,
use colorkeying which is way faster anyway.

TODO: Turn 'IDirectFBSurface->SetSrcColorKey()' into a pixelformat
independent function that is called on the source for keyed blitting
to a destination, currently the colorkey of the source is set at the
destination in the source's pixelformat.



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