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ui: simplify gl unblock & flush

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GraphicHw.gl_flushed was introduced to notify the
device (vhost-user-gpu) that the GL resources (the display scanout) are
no longer needed.

It was decoupled from QEMU own gl-blocking mechanism, but that
difference isn't helping. Instead, we can reuse QEMU gl-blocking and
notify virtio_gpu_gl_flushed() when unblocking (to unlock
vhost-user-gpu).

An extra block/unblock is added arount dpy_gl_update() so existing
backends that don't block will have the flush event handled. It will
also help when there are no backends associated.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Marc-André Lureau
2021-03-11 12:11:37 +04:00
parent a9b1e471e1
commit f6413cbfd0
10 changed files with 8 additions and 32 deletions
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2
ui/sdl2-gl.c
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@@ -58,7 +58,6 @@ static void sdl2_gl_render_surface(struct sdl2_console *scon)
surface_gl_render_texture(scon->gls, scon->surface);
SDL_GL_SwapWindow(scon->real_window);
graphic_hw_gl_flushed(scon->dcl.con);
}
void sdl2_gl_update(DisplayChangeListener *dcl,
@@ -241,5 +240,4 @@ void sdl2_gl_scanout_flush(DisplayChangeListener *dcl,
egl_fb_blit(&scon->win_fb, &scon->guest_fb, !scon->y0_top);
SDL_GL_SwapWindow(scon->real_window);
graphic_hw_gl_flushed(dcl->con);
}