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2020-07-10qom: Crash more nicely on object_property_get_link() failureMarkus Armbruster
Pass &error_abort instead of NULL where the returned value is dereferenced or asserted to be non-null. Drop a now redundant assertion. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200707160613.848843-24-armbru@redhat.com>
2020-07-02vnc: Plug minor memory leak in vnc_display_open()Markus Armbruster
vnc_display_print_local_addr() leaks the Error object when qio_channel_socket_get_local_address() fails. Seems unlikely. Called when we create a VNC display with vnc_display_open(). Plug the leak by passing NULL to ignore the error. Cc: Daniel P. Berrange <berrange@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200630090351.1247703-12-armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-07-02Clean up some calls to ignore Error objects the right wayMarkus Armbruster
Receiving the error in a local variable only to free it is less clear (and also less efficient) than passing NULL. Clean up. Cc: Daniel P. Berrange <berrange@redhat.com> Cc: Jerome Forissier <jerome@forissier.org> CC: Greg Kurz <groug@kaod.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> Message-Id: <20200630090351.1247703-4-armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-05-26audio: Let capture_callback handler use const buffer argumentPhilippe Mathieu-Daudé
The buffer is the captured input to pass to backends. As we should not modify it, mark the argument const. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20200505132603.8575-3-f4bug@amsat.org> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-19ui: increase min required GTK version to 3.22.0Volker Rümelin
Based on a mail on the qemu-devel mailing list at https://lists.nongnu.org/archive/html/qemu-devel/2020-05/msg02909.html and some internet research the GTK3 versions on supported platforms are: RHEL-7.4: 3.22.10 RHEL-7.5: 3.22.26 Debian (Stretch): 3.22.11 Debian (Buster): 3.24.5 OpenBSD (Ports): 3.22.30 FreeBSD (Ports): 3.22.29 OpenSUSE Leap 15: 3.22.30 SLE12-SP2: Unknown SLE15: 3.22.30 Ubuntu (Bionic): 3.22.30 Ubuntu (Focal): 3.24.18 macOS (Homebrew): 3.22.30 This justifies increasing the minimum required GTK version in QEMU to 3.22.0. Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200516072014.7766-11-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-19ui/gtk: use native keyboard scancodes on WindowsVolker Rümelin
Since GTK 3.22 the function gdk_event_get_scancode() is available. On Windows this function returns keyboard scancodes and some extended flags. These raw keyboard scancodes are much better suited for this use case than the half-cooked win32 virtual-key codes because scancodes report the key position on the keyboard and the positions are independent of national language settings. Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200516072014.7766-10-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-19ui/gtk: don't pass on win keys without keyboard grabVolker Rümelin
Without keyboard grab Windows currently handles the two win keys and the key events are also sent to the guest. This is undesir- able. Only one program should handle key events. This patch ap- plies commit c68f74b02e "win32: do not handle win keys when the keyboard is not grabbed" from project spice-gtk to ui/gtk.c to fix this problem. Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200516072014.7766-9-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-19ui/sdl2-input: use trace-events to debug key eventsVolker Rümelin
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200516072014.7766-8-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-19ui/sdl2: start in full screen with grab enabledVolker Rümelin
QEMU with SDL 1.2 display used to enable keyboard and mouse grab- bing when started in full screen. The SDL 2.0 code tries to do the same but fails to enable grabbing because sdl_grab_start(0) returns early. To do it's work the sdl_grab_start() function needs a pointer to a sdl2_console structure. Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200516072014.7766-7-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-19ui/sdl2: fix handling of AltGr key on WindowsVolker Rümelin
Wire up the keyboard hooking code on Windows to fix the AltGr key and improve keyboard grabbing. Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200516072014.7766-6-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-19ui/gtk: remove unused variable ignore_keysVolker Rümelin
Since the removal of GTK2 code in commit 89d85cde75 the code around ignore_keys is unused. See commit 1a01716a30 "gtk: Avoid accel key leakage into guest on console switch" why it was only needed for GTK2. Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200516072014.7766-5-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-19ui/gtk: remove unused codeVolker Rümelin
This code was last used before commit 2ec78706d1 "ui: convert GTK and SDL1 frontends to keycodemapdb". Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200516072014.7766-4-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-19ui/gkt: release all keys on grab-broken-eventVolker Rümelin
There is no way to grab the Ctrl-Alt-Del key combination on Windows. This key combination will leave all three keys in a stuck condition. This patch uses the grab-broken-event to release the keys. Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200516072014.7766-3-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-19ui/gtk: fix handling of AltGr key on WindowsVolker Rümelin
Wire up the keyboard hooking code on Windows to fix the AltGr key and improve keyboard grabbing. Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200516072014.7766-2-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-19ui/win32-kbd-hook: handle AltGr in a hook procedureVolker Rümelin
Import win32 keyboard hooking code from project spice-gtk. This patch removes the extra left control key up/down input events inserted by Windows for the right alt key up/down input events with international keyboard layouts. Additionally there's some code to grab the keyboard. The next patches will use this code. Only Windows needs this. Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200516072014.7766-1-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-15Merge remote-tracking branch 'remotes/kraxel/tags/ui-20200515-pull-request' ↵Peter Maydell
into staging ui: sdl bugfix, -show-cursor deprecation message # gpg: Signature made Fri 15 May 2020 09:21:29 BST # gpg: using RSA key 4CB6D8EED3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full] # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" [full] # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full] # Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138 * remotes/kraxel/tags/ui-20200515-pull-request: ui/sdl2: fix segment fault caused by null pointer dereference ui: improve -show-cursor deprecation message Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-15qom: Drop parameter @errp of object_property_add() & friendsMarkus Armbruster
The only way object_property_add() can fail is when a property with the same name already exists. Since our property names are all hardcoded, failure is a programming error, and the appropriate way to handle it is passing &error_abort. Same for its variants, except for object_property_add_child(), which additionally fails when the child already has a parent. Parentage is also under program control, so this is a programming error, too. We have a bit over 500 callers. Almost half of them pass &error_abort, slightly fewer ignore errors, one test case handles errors, and the remaining few callers pass them to their own callers. The previous few commits demonstrated once again that ignoring programming errors is a bad idea. Of the few ones that pass on errors, several violate the Error API. The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. ich9_pm_add_properties(), sparc32_ledma_realize(), sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize() are wrong that way. When the one appropriate choice of argument is &error_abort, letting users pick the argument is a bad idea. Drop parameter @errp and assert the preconditions instead. There's one exception to "duplicate property name is a programming error": the way object_property_add() implements the magic (and undocumented) "automatic arrayification". Don't drop @errp there. Instead, rename object_property_add() to object_property_try_add(), and add the obvious wrapper object_property_add(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200505152926.18877-15-armbru@redhat.com> [Two semantic rebase conflicts resolved]
2020-05-14ui/sdl2: fix segment fault caused by null pointer dereferenceChangbin Du
I found SDL_GetWindowFromID() sometimes return NULL when I start qemu via ssh forwarding even the window has been crated already. I am not sure whether this is a bug of SDL, but we'd better check it carefully. Signed-off-by: Changbin Du <changbin.du@gmail.com> Message-id: 20200427132412.17909-1-changbin.du@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-05Merge remote-tracking branch ↵Peter Maydell
'remotes/vivier2/tags/trivial-branch-for-5.1-pull-request' into staging trivial patches (20200504) Silent static analyzer warning Remove dead assignments Support -chardev serial on macOS Update MAINTAINERS Some cosmetic changes # gpg: Signature made Mon 04 May 2020 16:45:18 BST # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/vivier2/tags/trivial-branch-for-5.1-pull-request: hw/timer/pxa2xx_timer: Add assertion to silent static analyzer warning hw/timer/stm32f2xx_timer: Remove dead assignment hw/gpio/aspeed_gpio: Remove dead assignment hw/isa/i82378: Remove dead assignment hw/ide/sii3112: Remove dead assignment hw/input/adb-kbd: Remove dead assignment hw/i2c/pm_smbus: Remove dead assignment blockdev: Remove dead assignment block: Avoid dead assignment Compress lines for immediate return chardev: Add macOS to list of OSes that support -chardev serial MAINTAINERS: Update Keith Busch's email address elf_ops: Don't try to g_mapped_file_unref(NULL) hw/mem/pc-dimm: Fix line over 80 characters warning hw/mem/pc-dimm: Print slot number on error at pc_dimm_pre_plug() MAINTAINERS: Mark the LatticeMico32 target as orphan timer/exynos4210_mct: Remove redundant statement in exynos4210_mct_write() display/blizzard: use extract16() for fix clang analyzer warning in blizzard_draw_line16_32() scsi/esp-pci: add g_assert() for fix clang analyzer warning in esp_pci_io_write() Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-04lockable: replaced locks with lock guard macros where appropriateDaniel Brodsky
- ran regexp "qemu_mutex_lock\(.*\).*\n.*if" to find targets - replaced result with QEMU_LOCK_GUARD if all unlocks at function end - replaced result with WITH_QEMU_LOCK_GUARD if unlock not at end Signed-off-by: Daniel Brodsky <dnbrdsky@gmail.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-id: 20200404042108.389635-3-dnbrdsky@gmail.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-05-04Compress lines for immediate returnSimran Singhal
Compress two lines into a single line if immediate return statement is found. It also remove variables progress, val, data, ret and sock as they are no longer needed. Remove space between function "mixer_load" and '(' to fix the checkpatch.pl error:- ERROR: space prohibited between function name and open parenthesis '(' Done using following coccinelle script: @@ local idexpression ret; expression e; @@ -ret = +return e; -return ret; Signed-off-by: Simran Singhal <singhalsimran0@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20200401165314.GA3213@simran-Inspiron-5558> [lv: in handle_aiocb_write_zeroes_unmap() move "int ret" inside the #ifdef] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-25ui/input-linux: Do not ignore ioctl() return valuePhilippe Mathieu-Daudé
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>
2020-03-16ui/curses: Move arrays to .heap to save 74KiB of .bssPhilippe Mathieu-Daudé
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>
2020-03-16ui/curses: Make control_characters[] array constPhilippe Mathieu-Daudé
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>
2020-03-16qom/object: enable setter for uint typesFelipe Franciosi
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>
2020-03-06ui/cocoa.m: Update documentation file and pathnamePeter Maydell
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
2020-02-18ui/input-barrier: Remove superfluous semicolonPhilippe Mathieu-Daudé
Fixes: 6105683da35 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>
2020-02-17qapi: Split control.json off misc.jsonKevin Wolf
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>
2020-02-12ui/cocoa: Drop workarounds for pre-10.12 OSXPeter Maydell
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 50290c002c045280f8d 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>
2020-02-12ui/gtk: implement show-cursor optionGerd Hoffmann
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>
2020-02-12ui/cocoa: switch to new show-cursor optionGerd Hoffmann
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>
2020-02-12ui/sdl: switch to new show-cursor optionGerd Hoffmann
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>
2020-02-12ui/gtk: Fix gd_refresh_rate_millihz() when widget window is not realizedPhilippe Mathieu-Daudé
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>
2020-02-12ui/gtk: Update gd_refresh_rate_millihz() to handle VirtualConsolePhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Jan Kiszka <jan.kiszka@web.de> Message-id: 20200208161048.11311-2-f4bug@amsat.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-01-21ui/console: Display the 'none' backend in '-display help'Philippe Mathieu-Daudé
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>
2020-01-21vnc: prioritize ZRLE compression over ZLIBCameron Esfahani
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>
2020-01-21Revert "vnc: allow fall back to RAW encoding"Gerd Hoffmann
This reverts commit de3f7de7f4e257ce44cdabb90f5f17ee99624557. 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>
2020-01-16ui/gtk: Get display refresh rate with GDK version 3.22 or laterPhilippe Mathieu-Daudé
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>
2020-01-14display/gtk: get proper refreshrateNikola Pavlica
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>
2020-01-14ui: Print available display backends with '-display help'Thomas Huth
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>
2020-01-02screendump: use qemu_unlink()Marc-André Lureau
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>
2020-01-02screendump: replace FILE with QIOChannel and fix close()/qemu_close()Marc-André Lureau
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>
2020-01-02ppm-save: pass opened fdMarc-André Lureau
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>
2020-01-02console: add graphic_hw_update_done()Marc-André Lureau
Add a function to be called when a graphic update is done. Declare the QXL renderer as async: render_update_cookie_num counts the number of outstanding updates, and graphic_hw_update_done() is called when it reaches none. (note: this is preliminary work for asynchronous screendump support) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-18vnc: drop Error pointer indirection in vnc_client_io_errorVladimir Sementsov-Ogievskiy
We don't need Error **, as all callers pass local Error object, which isn't used after the call, or NULL. Use Error * instead. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20191205174635.18758-6-vsementsov@virtuozzo.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2019-12-17glib: use portable g_setenv()Marc-André Lureau
We have a setenv() wrapper in os-win32.c that no one is actually using. Drop it and change to g_setenv() uniformly. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1576074210-52834-7-git-send-email-pbonzini@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-11-21ui/gtk: fix gettext message's charset.yanminhui
Signed-off-by: yanminhui <yanminhui163@163.com> Message-Id: <20191116031037.1207-1-yanminhui163@163.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18ui: fix keymap file search in input-barrier objectLaurent Vivier
If we try to start QEMU with "-k en-us", qemu prints a message and exits with: qemu-system-i386: could not read keymap file: 'en-us' It's because this function is called way too early, before qemu_add_data_dir() is called, and so qemu_find_file() fails. To fix that, move init_keyboard_layout() from the class init function to the instance init function. Reported-by: Anthony PERARD <anthony.perard@citrix.com> Reviewed-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-id: 20190923220658.27007-1-laurent@vivier.eu Fixes: 6105683da35b ("ui: add an embedded Barrier client") Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18curses: correctly pass the color pair to setcchar()Matthew Kilgore
The current code does not correctly pass the color pair information to setcchar(), it instead always passes zero. This results in the curses output always being in white on black. This patch fixes this by using PAIR_NUMBER() to retrieve the color pair number from the chtype value, and then passes that value as an argument to setcchar(). Signed-off-by: Matthew Kilgore <mattkilgore12@gmail.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Tested-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Message-id: 20191004035338.25601-3-mattkilgore12@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-10-18curses: use the bit mask constants provided by cursesMatthew Kilgore
The curses API provides the A_ATTRIBUTES and A_CHARTEXT bit masks for getting the attributes and character parts of a chtype, respectively. We should use provided constants instead of using 0xff. Signed-off-by: Matthew Kilgore <mattkilgore12@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Tested-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Message-id: 20191004035338.25601-2-mattkilgore12@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-26 22:45:34 +0000