egl: add dri2_setup_swap_interval helper
The current two implementations - X11 and Wayland were identical,
barrind the upper limit.
Instead of having same code twice - introduce a helper and pass the
limit as an argument.
Thus as Android/DRM/others get support - they only need to call the
function ;-)
v2: Rebase on top of keeping ::swap_available
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> (v1)
diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index f0d1ded..f584740 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -729,6 +729,41 @@
}
}
+void
+dri2_setup_swap_interval(_EGLDisplay *disp, int max_swap_interval)
+{
+ struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+ GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
+
+ /* Allow driconf to override applications.*/
+ if (dri2_dpy->config)
+ dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
+ "vblank_mode", &vblank_mode);
+ switch (vblank_mode) {
+ case DRI_CONF_VBLANK_NEVER:
+ dri2_dpy->min_swap_interval = 0;
+ dri2_dpy->max_swap_interval = 0;
+ dri2_dpy->default_swap_interval = 0;
+ break;
+ case DRI_CONF_VBLANK_ALWAYS_SYNC:
+ dri2_dpy->min_swap_interval = 1;
+ dri2_dpy->max_swap_interval = max_swap_interval;
+ dri2_dpy->default_swap_interval = 1;
+ break;
+ case DRI_CONF_VBLANK_DEF_INTERVAL_0:
+ dri2_dpy->min_swap_interval = 0;
+ dri2_dpy->max_swap_interval = max_swap_interval;
+ dri2_dpy->default_swap_interval = 0;
+ break;
+ default:
+ case DRI_CONF_VBLANK_DEF_INTERVAL_1:
+ dri2_dpy->min_swap_interval = 0;
+ dri2_dpy->max_swap_interval = max_swap_interval;
+ dri2_dpy->default_swap_interval = 1;
+ break;
+ }
+}
+
/* All platforms but DRM call this function to create the screen and populate
* the driver_configs. DRM inherits that information from its display - GBM.
*/