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qxl: always update displaysurface on resize 

Don't try to be clever and skip displaysurface reinitialization in case
the size hasn't changed.  Other parameters might have changed
nevertheless, for example depth or stride, resulting in rendering being
broken then.

Trigger: boot linux guest with vesafb, start X11, make sure both vesafb
and X11 use the display same resolution.  Then watch X11 screen being
upside down.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-09-14 22:09:23 +02:00
parent 4bb26682f7
commit 0ec8df3974
1 changed files with 0 additions and 4 deletions
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4
hw/qxl-render.c
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@ -99,7 +99,6 @@ static void qxl_render_update_area_unlocked(PCIQXLDevice *qxl)
{
VGACommonState *vga = &qxl->vga;
int i;
DisplaySurface *surface = vga->ds->surface;
if (qxl->guest_primary.resized) {
qxl->guest_primary.resized = 0;
@ -112,9 +111,6 @@ static void qxl_render_update_area_unlocked(PCIQXLDevice *qxl)
qxl->guest_primary.qxl_stride,
qxl->guest_primary.bytes_pp,
qxl->guest_primary.bits_pp);
}
if (surface->width != qxl->guest_primary.surface.width ||
surface->height != qxl->guest_primary.surface.height) {
if (qxl->guest_primary.qxl_stride > 0) {
qemu_free_displaysurface(vga->ds);
qemu_create_displaysurface_from(qxl->guest_primary.surface.width,