On 18/05/2015 13:17, Gerd Hoffmann wrote:
On Mo, 2015-05-18 at 09:51 +0200, Frederic Konrad wrote:
On 18/05/2015 09:34, Gerd Hoffmann wrote:
On Mi, 2015-05-13 at 21:12 +0200, fred.kon...@greensocs.com wrote:
From: KONRAD Frederic <fred.kon...@greensocs.com>
This allows to create a surface with a different format than xrgb8888.
What is the use case for this?
cheers,
Gerd
Hi,
The Display Port introduced in patch 7 and the driver use differents
pixel format.
eg: rgb565, RGB888, etc. see xilinx_dp_change_graphic_fmt in patch 7:
Ah, and dpdma scatterlists (patch 6) suggest the guest framebuffer is
not contiguous in guest phyiscal memory, correct? So using guest memory
as surface storage using qemu_create_displaysurface_from() doesn't work.
Exactly, the framebuffer is not necessarilly contiguous, so I need to
put the
fragment into the pixman storage.
But I think you can simply call qemu_create_displaysurface_from() with
linesize=0 and data=NULL to make pixman allocate storage for you.
Ah, maybe! I'll check that.
Thanks,
Fred
cheers,
Gerd
