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| author | Marc-André Lureau <marcandre.lureau@redhat.com> | 2016-08-26 13:47:11 +0400 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2016-09-28 12:49:26 +0200 |
| commit | cd958edb1fae85d0c7d1e1acbff82d22724e8d64 (patch) | |
| tree | 6cbe468332cab73000187aab999bd8e8dc9a39b0 | |
| parent | 7cfdc02dae0d2ff58c897496cfdbbafc0eda0f3f (diff) | |
| download | qemu-cd958edb1fae85d0c7d1e1acbff82d22724e8d64.zip qemu-cd958edb1fae85d0c7d1e1acbff82d22724e8d64.tar.gz qemu-cd958edb1fae85d0c7d1e1acbff82d22724e8d64.tar.bz2 | |
console: skip same-size resize
virtio-gpu does a set-scanout at each frame (it might be a driver
regression). qemu_console_resize() recreate a surface even if the size
didn't change, and this shows up in profiling reports because the
surface is cleared. With this patch, I get a +15-20% glmark2
improvement.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20160826094711.14470-1-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| -rw-r--r-- | ui/console.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/ui/console.c b/ui/console.c index 3940762..394786b 100644 --- a/ui/console.c +++ b/ui/console.c @@ -2101,6 +2101,13 @@ void qemu_console_resize(QemuConsole *s, int width, int height) DisplaySurface *surface; assert(s->console_type == GRAPHIC_CONSOLE); + + if (s->surface && + pixman_image_get_width(s->surface->image) == width && + pixman_image_get_height(s->surface->image) == height) { + return; + } + surface = qemu_create_displaysurface(width, height); dpy_gfx_replace_surface(s, surface); } |