Xen devel - Apr 2008 - [PATCH] ioemu rendering fixes

Hi all,
I am attaching a patch that fixes some issues regarding ioemu rendering.
If you prefer smaller patches, I can split it.
The changes are the following:

- no need to call the colourdepth callback in text mode: the buffer
cannot be shared anyway;

- line size changes are currently undetected: since we added a linesize
parameter to the resize callback, we also need to detect line size
changes and call dpy_resize accordingly;

- 8 bit colour depth with the shared framebuffer is broken: in order to
fix it I disabled the shared buffer in vnc for the 8bit colour depth
case (it has to be done in software anyway..) and implemented paletted
colours in both opengl and sdl;

- opengl rendering is broken when there is padding in the framebuffer 
lines: removing unnecessary GL_UNPACK_ALIGNMENT settings so that the 
GL_UNPACK_ROW_LENGTH parameter can work properly.

Best Regards,

Stefano Stabellini



Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>





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Stefano Stabellini wrote:
> Hi all,
> I am attaching a patch that fixes some issues regarding ioemu rendering.
> If you prefer smaller patches, I can split it.
> The changes are the following:
> 
> - no need to call the colourdepth callback in text mode: the buffer
> cannot be shared anyway;
Samuel helped me realize that this callback is useful when switching 
back from graphical mode to text mode. In fact the mistake is that in 
this case sdl colourdepth doesn''t disable buffer sharing.

I am resending the patch fixed.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>


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