Enable throttling in SwapBuffers

flush_with_flags, when available, allows the driver to throttle.
Using this suppress input lag issues that can be observed in heavy
rendering situations on non-intel cards.

Signed-off-by: Axel Davy <axel.davy@ens.fr>
Cc: "10.0" mesa-stable@lists.freedesktop.org
(cherry picked from commit afcce46fd5)
This commit is contained in:
Axel Davy 2013-12-03 17:04:10 +01:00 committed by Carl Worth
parent 1919ec6ba4
commit 2776a496d4

View file

@ -557,6 +557,8 @@ dri2_swap_buffers_with_damage(_EGLDriver *drv,
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
struct dri2_egl_context *dri2_ctx;
_EGLContext *ctx;
int i, ret = 0;
while (dri2_surf->frame_callback && ret != -1)
@ -610,7 +612,17 @@ dri2_swap_buffers_with_damage(_EGLDriver *drv,
}
}
(*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
if (dri2_dpy->flush->base.version >= 4) {
ctx = _eglGetCurrentContext();
dri2_ctx = dri2_egl_context(ctx);
(*dri2_dpy->flush->flush_with_flags)(dri2_ctx->dri_context,
dri2_surf->dri_drawable,
__DRI2_FLUSH_DRAWABLE,
__DRI2_THROTTLE_SWAPBUFFER);
} else {
(*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
}
(*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
wl_surface_commit(dri2_surf->wl_win->surface);