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[Qemu-devel] [PULL 1/4] console: skip same-size resize
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PULL 1/4] console: skip same-size resize |
Date: |
Wed, 28 Sep 2016 14:01:54 +0200 |
From: Marc-André Lureau <address@hidden>
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 <address@hidden>
Message-id: address@hidden
Signed-off-by: Gerd Hoffmann <address@hidden>
---
ui/console.c | 7 +++++++
1 file changed, 7 insertions(+)
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);
}
--
1.8.3.1
- [Qemu-devel] [PULL 0/4] ui: console+vnc fixes, switch spice to pure opengl with gl=on., Gerd Hoffmann, 2016/09/28
- [Qemu-devel] [PULL 1/4] console: skip same-size resize,
Gerd Hoffmann <=
- [Qemu-devel] [PULL 3/4] spice/gl: render DisplaySurface via opengl, Gerd Hoffmann, 2016/09/28
- [Qemu-devel] [PULL 2/4] console: track gl_block state in QemuConsole, Gerd Hoffmann, 2016/09/28
- [Qemu-devel] [PULL 4/4] ui/vnc-enc-tight: remove switch and have single return, Gerd Hoffmann, 2016/09/28
- Re: [Qemu-devel] [PULL 0/4] ui: console+vnc fixes, switch spice to pure opengl with gl=on., Peter Maydell, 2016/09/28