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
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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