motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-07 01:33:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

ui/console: Remove dpy_cursor_define_supported()

Browse source 
Remove dpy_cursor_define_supported() as it brings no benefit today and
it has a few inherent problems.

All graphical displays except egl-headless support cursor composition
without DMA-BUF, and egl-headless is meant to be used in conjunction
with another graphical display, so dpy_cursor_define_supported()
always returns true and meaningless.

Even if we add a new display without cursor composition in the future,
dpy_cursor_define_supported() will be problematic as a cursor display
fix for it because some display devices like virtio-gpu cannot tell the
lack of cursor composition capability to the guest and are unable to
utilize the value the function returns. Therefore, all non-headless
graphical displays must actually implement cursor composition for
correct cursor display.

Another problem with dpy_cursor_define_supported() is that it returns
true even if only some of the display listeners support cursor
composition, which is wrong unless all display listeners that lack
cursor composition is headless.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Phil Dennis-Jordan <phil@philjordan.eu>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-ID: <20240715-cursor-v3-4-afa5b9492dbf@daynix.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Akihiko Odaki 2024-07-15 14:25:45 +09:00 • committed by Philippe Mathieu-Daudé
parent d2277f02b8
commit 4bba839808
4 changed files with 2 additions and 22 deletions
Download patch file Download diff file Expand all files Collapse all files

6
hw/display/vmware_vga.c
View file

@ -904,10 +904,8 @@ static uint32_t vmsvga_value_read(void *opaque, uint32_t address)
caps |= SVGA_CAP_RECT_FILL;
#endif
#ifdef HW_MOUSE_ACCEL
if (dpy_cursor_define_supported(s->vga.con)) {
caps |= SVGA_CAP_CURSOR | SVGA_CAP_CURSOR_BYPASS_2 |
SVGA_CAP_CURSOR_BYPASS;
}
caps |= SVGA_CAP_CURSOR | SVGA_CAP_CURSOR_BYPASS_2 |
SVGA_CAP_CURSOR_BYPASS;
#endif
ret = caps;
break;