Hi,
ext Bin Chen wrote:
> I am not doing very detailed profiling against this, but by comparing
> the frame rate in my player against using pure framebuffer
> implementation. The performance difference is large. If not using
> shared memory to transfer the decoded image data, obviously the
> performance can't be good in slow machine.
>
> The GTK+ can draw pixbuf and image to the drawable, is there any
> existing method for me to choose to force the low level gdk to use SHM
> extension?
If you have a local connection to X server it uses that
(where it helps, setting up XSHM has its own overhead).
Gdk handles images internally as 32-bits, the display is 16-bits.
Conversion is done automatically when needed by Gdk. Need I say
more?
It sounds like your use-case would be more appropriate to be done
with libSDL (which also does automatic conversions, but can handle
surfaces in display bit-depth if you've just asked it to do that).
- Eero
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