qemu-e2k/include/ui
Gerd Hoffmann 2e5567c903 vnc: deal with surface NULL pointers
Secondary displays in multihead setups are allowed to have a NULL
DisplaySurface.  Typically user interfaces handle this by hiding the
window which shows the display in question.

This isn't an option for vnc though because it simply hasn't a concept
of windows or outputs.  So handle the situation by showing a placeholder
DisplaySurface instead.  Also check in console_select whenever a surface
is preset in the first place before requesting an update.

This fixes a segfault which can be triggered by switching to an unused
display (via vtrl-alt-<nr>) in a multihead setup, for example using
-device virtio-vga,max_outputs=2.

Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-id: 20180308161803.6152-1-kraxel@redhat.com
2018-03-12 09:00:59 +01:00
..
console.h vnc: deal with surface NULL pointers 2018-03-12 09:00:59 +01:00
egl-context.h opengl: add egl-context.[ch] helpers 2015-10-08 10:34:53 +02:00
egl-helpers.h egl-helpers: add egl_texture_blit and egl_texture_blend 2017-10-17 10:25:42 +02:00
gtk.h ui/gtk-egl: add cursor_dmabuf support 2018-03-12 09:00:34 +01:00
input.h Include less of the generated modular QAPI headers 2018-03-02 13:45:50 -06:00
pixel_ops.h ui: move files to ui/ and include/ui/ 2012-12-19 08:31:30 +01:00
qemu-pixman.h Use scripts/clean-includes to drop redundant qemu/typedefs.h 2016-03-22 22:20:16 +01:00
qemu-spice.h Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
sdl2.h sdl2: Ignore UI hotkeys after a focus change when GUI modifier is held 2018-01-12 15:51:18 +01:00
shader.h opengl: add flipping vertex shader 2017-10-17 10:25:42 +02:00
spice-display.h spice: remove QXLWorker interface field 2018-01-12 14:35:58 +01:00