Fix warnings reported by Clang static code analyzer:
CC ui/input-linux.o
ui/input-linux.c:343:9: warning: Value stored to 'rc' is never read
rc = ioctl(il->fd, EVIOCGBIT(EV_REL, sizeof(relmap)), &relmap);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ui/input-linux.c:351:9: warning: Value stored to 'rc' is never read
rc = ioctl(il->fd, EVIOCGBIT(EV_ABS, sizeof(absmap)), &absmap);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ui/input-linux.c:354:13: warning: Value stored to 'rc' is never read
rc = ioctl(il->fd, EVIOCGABS(ABS_X), &absinfo);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ui/input-linux.c:357:13: warning: Value stored to 'rc' is never read
rc = ioctl(il->fd, EVIOCGABS(ABS_Y), &absinfo);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ui/input-linux.c:365:9: warning: Value stored to 'rc' is never read
rc = ioctl(il->fd, EVIOCGBIT(EV_KEY, sizeof(keymap)), keymap);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ui/input-linux.c:366:9: warning: Value stored to 'rc' is never read
rc = ioctl(il->fd, EVIOCGKEY(sizeof(keystate)), keystate);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Reported-by: Clang Static Analyzer
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-id: 20200322161219.17757-1-philmd@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
We only need these arrays when using the curses display.
Move them from the .bss to the .heap (sizes reported on
x86_64 host: screen[] is 64KiB, vga_to_curses 7KiB).
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
As we only use this array as input, make it const.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Traditionally, the uint-specific property helpers only offer getters.
When adding object (or class) uint types, one must therefore use the
generic property helper if a setter is needed (and probably duplicate
some code writing their own getters/setters).
This enhances the uint-specific property helper APIs by adding a
bitwise-or'd 'flags' field and modifying all clients of that API to set
this paramater to OBJ_PROP_FLAG_READ. This maintains the current
behaviour whilst allowing others to also set OBJ_PROP_FLAG_WRITE (or use
the more convenient OBJ_PROP_FLAG_READWRITE) in the future (which will
automatically install a setter). Other flags may be added later.
Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We want to stop generating the old qemu-doc.html; first we
must update places that refer to it so they instead go to
our top level index.html documentation landing page.
The Cocoa UI has a menu option to bring up the documentation;
make it point to the new top level index.html instead.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-31-peter.maydell@linaro.org
Fixes: 6105683da3
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200218094402.26625-11-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
misc.json contains definitions that are related to the system emulator,
so it can't be used for other tools like the storage daemon. This patch
moves basic functionality that is shared between all tools (and mostly
related to the monitor itself) into a new control.json, which could be
used in tools as well.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200129102239.31435-3-kwolf@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Our official OSX support policy covers the last two released versions.
Currently that is 10.14 and 10.15. We also may work on older versions, but
don't guarantee it.
In commit 50290c002c in mid-2019 we introduced some uses of
CLOCK_MONOTONIC which incidentally broke compilation for pre-10.12 OSX
versions (see LP:1861551). We don't intend to fix that, so we might
as well drop the code in ui/cocoa.m which caters for pre-10.12
versions as well. (For reference, 10.11 fell out of Apple extended
security support in September 2018.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200201170534.22123-1-peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When specified just set null_cursor to NULL so we get the default
pointer instead of a blank pointer.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use DisplayOpts settings to set the new file-global cursor_hide
variable, stop using the qemu-global cursor_hide variable.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use DisplayOpts settings instead of cursor_hide global variable.
Also make "-display sdl,show-cursor=on" work.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
gtk_widget_get_window() returns NULL if the widget's window is not
realized, and QEMU crashes. Example under gtk 3.22.30 (mate 1.20.1):
qemu-system-x86_64: Gdk: gdk_window_get_origin: assertion 'GDK_IS_WINDOW (window)' failed
(gdb) bt
#0 0x00007ffff496cf70 in gdk_window_get_origin () from /usr/lib64/libgdk-3.so.0
#1 0x00007ffff49582a0 in gdk_display_get_monitor_at_window () from /usr/lib64/libgdk-3.so.0
#2 0x0000555555bb73e2 in gd_refresh_rate_millihz (window=0x5555579d6280) at ui/gtk.c:1973
#3 gd_vc_gfx_init (view_menu=0x5555579f0590, group=0x0, idx=0, con=<optimized out>, vc=0x5555579d4a90, s=0x5555579d49f0) at ui/gtk.c:2048
#4 gd_create_menu_view (s=0x5555579d49f0) at ui/gtk.c:2149
#5 gd_create_menus (s=0x5555579d49f0) at ui/gtk.c:2188
#6 gtk_display_init (ds=<optimized out>, opts=0x55555661ed80 <dpy>) at ui/gtk.c:2256
#7 0x000055555583d5a0 in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4358
Fixes: c4c00922cc and 28b58f19d2 (display/gtk: get proper refreshrate)
Reported-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Jan Kiszka <jan.kiszka@web.de>
Message-id: 20200208161048.11311-3-f4bug@amsat.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Commit c388f408b5 added the possibility to list the display
backends using '-display help'. Since the 'none' backend is
is not implemented as a DisplayChangeListenerOps, it is not
registered to the dpys[] array with qemu_display_register(),
and is not listed in the help output.
This might be confusing, as we list it in the man page:
-display type
Select type of display to use. This option is a replacement for
the old style -sdl/-curses/... options. Valid values for type are
none
Do not display video output. The guest will still see an
emulated graphics card, but its output will not be displayed
to the QEMU user. This option differs from the -nographic
option in that it only affects what is done with video
output; -nographic also changes the destination of the serial
and parallel port data.
Fix by manually listing the special 'none' backend in the help.
Suggested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20200120192947.31613-1-philmd@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In my investigation, ZRLE always compresses better than ZLIB so
prioritize ZRLE over ZLIB, even if the client hints that ZLIB is
preferred.
zlib buffer is always reset in zrle_compress_data(), so using offset to
calculate next_out and avail_out is useless.
Signed-off-by: Cameron Esfahani <dirty@apple.com>
Message-Id: <b5d129895d08a90d0a2a6183b95875bacfa998b8.1579582674.git.dirty@apple.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This reverts commit de3f7de7f4.
Remove VNC optimization to reencode framebuffer update as raw if it's
smaller than the default encoding.
QEMU's implementation was naive and didn't account for the ZLIB z_stream
mutating with each compression. Because of the mutation, simply
resetting the output buffer's offset wasn't sufficient to "rewind" the
operation. The mutated z_stream would generate future zlib blocks which
referred to symbols in past blocks which weren't sent. This would lead
to artifacting.
Considering that ZRLE is never larger than raw and even though ZLIB can
occasionally be fractionally larger than raw, the overhead of
implementing this optimization correctly isn't worth it.
Signed-off-by: Cameron Esfahani <dirty@apple.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Commit c4c00922cc introduced the use of the GdkMonitor API, which
was introduced in GTK+ 3.22:
https://developer.gnome.org/gdk3/stable/api-index-3-22.html#api-index-3.22
Unfortunately this break building with older versions, as on Ubuntu
Xenial which provides GTK+ 3.18:
$ lsb_release -cd
Description: Ubuntu 16.04.5 LTS
Codename: xenial
$ ./configure && make
GTK support yes (3.18.9)
GTK GL support no
[...]
CC ui/gtk.o
qemu/ui/gtk.c: In function ‘gd_vc_gfx_init’:
qemu/ui/gtk.c:1973:5: error: unknown type name ‘GdkMonitor’
GdkMonitor *monitor = gdk_display_get_monitor_at_window(dpy, win);
^
qemu/ui/gtk.c:1973:27: error: implicit declaration of function ‘gdk_display_get_monitor_at_window’ [-Werror=implicit-function-declaration]
GdkMonitor *monitor = gdk_display_get_monitor_at_window(dpy, win);
^
qemu/ui/gtk.c:1973:5: error: nested extern declaration of ‘gdk_display_get_monitor_at_window’ [-Werror=nested-externs]
GdkMonitor *monitor = gdk_display_get_monitor_at_window(dpy, win);
^
qemu/ui/gtk.c:1973:27: error: initialization makes pointer from integer without a cast [-Werror=int-conversion]
GdkMonitor *monitor = gdk_display_get_monitor_at_window(dpy, win);
^
qemu/ui/gtk.c:2035:28: error: implicit declaration of function ‘gdk_monitor_get_refresh_rate’ [-Werror=implicit-function-declaration]
refresh_rate_millihz = gdk_monitor_get_refresh_rate(monitor);
^
qemu/ui/gtk.c:2035:5: error: nested extern declaration of ‘gdk_monitor_get_refresh_rate’ [-Werror=nested-externs]
refresh_rate_millihz = gdk_monitor_get_refresh_rate(monitor);
^
cc1: all warnings being treated as errors
qemu/rules.mak:69: recipe for target 'ui/gtk.o' failed
make: *** [ui/gtk.o] Error 1
GTK+ provides convenient definition in <gdk/gdkversionmacros.h>
(already include by <gdk/gdk.h>) to check which API are available.
We only use the GdkMonitor API to get the monitor refresh rate.
Extract this code as a new gd_refresh_rate_millihz() function,
and check GDK_VERSION_3_22 is defined before calling its API.
If it is not defined, return 0. This is safe and fixes our build
failure (see https://travis-ci.org/qemu/qemu/builds/636992508).
Reported-by: Travis-CI
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200116115413.31650-1-philmd@redhat.com
Fixes: c4c00922cc (display/gtk: get proper refreshrate)
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Because some VMs in QEMU can get GPU virtualization (using technologies
such as iGVT-g, as mentioned previously), they could produce a video
output that had a higher display refresh rate than of what the GTK
display was displaying. (fxp. Playing a video game inside of a Windows
VM at 60 Hz, while the output stood locked at 33 Hz because of defaults
set in include/ui/console.h)
Since QEMU does indeed have internal systems for determining frame
times as defined in ui/console.c.
The code checks for a variable called update_interval that it later
uses for time calculation. This variable, however, isn't defined
anywhere in ui/gtk.c and instead ui/console.c just sets it to
GUI_REFRESH_INTERVAL_DEFAULT which is 30
update_interval represents the number of milliseconds per display
refresh, and by doing some math we get that 1000/30 = 33.33... Hz
This creates the mentioned problem and what this patch does is that it
checks for the display refresh rate reported by GTK itself (we can take
this as a safe value) and just converts it back to a number of
milliseconds per display refresh.
Signed-off-by: Nikola Pavlica <pavlica.nikola@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200108121342.29597-1-pavlica.nikola@gmail.com
[ kraxel: style tweak: add blank line between vars and code ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
We already print availabled devices with "-device help", or available
backends with "-netdev help" or "-chardev help". Let's provide a way
for the users to query the available display backends, too.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 20200108144702.29969-1-thuth@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Don't attempt to remove /dev/fdset files.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The file opened for ppm_save() may be a /dev/fdset, in which case a
dup fd is added to the fdset. It should be removed by calling
qemu_close(), instead of the implicit close() on fclose().
I don't see a convenient way to solve that with stdio streams, so I
switched the code to QIOChannel which uses qemu_close().
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This will allow to pre-open the file before running the async finish
handler and avoid potential monitor fdset races.
(note: this is preliminary work for asynchronous screendump support)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Matt Borgerson