Re: best approach to fast display of images?

[John Cupitt <jcupitt gmail com>]

Have you tried running gtk+-2.4.x/tests/testrgb? This benchmarks the
gdk_draw_gray_image() function:

http://developer.gnome.org/doc/API/2.0/gdk/gdk-GdkRGB.html#gdk-draw-gray-image

This is the fastest way to draw a buffer of pixels to the screen in
plain gdk. On my very modest machine I get about 30 Mpixels/sec, fast
enough to draw a 1,000 by 1,000 pixel image at 30 fps.

On Wed, 8 Dec 2004 00:20:20 +0100, F. Kater <f kater2 gmx net> wrote:
> I have to quickly display an image which gets brighter and brighter,
> then darker and darker (breathing effect). The image is grey and has no
> alpha channel right now. Time consuming is not the recalculation of the
> image's data but displaying it: