wayland: fix wl_surface_set_buffer_scale usage

The wl_surface lives for the entire lifetime of the vo. It's only
neccesary to set the scale initially and when the output scaling changes
(the surface moves to a different output with a different scale or the
output itself changes it scale). All of the calls that were being made
in the egl/vulkan resize functions are not needed. vo_wlshm wasn't
correctly rescaling itself before this commit since it had no logic to
handle scale changes. This should all be shared, common code in the
surface/output listeners.

1 files changed, 2 insertions, 0 deletions

diff --git a/video/out/wayland_common.c b/video/out/wayland_common.c
index 3e0ed8bbec..13cdf5f2f8 100644
--- a/video/out/wayland_common.c
+++ b/video/out/wayland_common.c
@@ -653,6 +653,7 @@ static void output_handle_done(void* data, struct wl_output *wl_output)
      * geometry and scaling should be recalculated. */
     if (wl->current_output && wl->current_output->output == wl_output) {
         wl->scaling = wl->current_output->scale;
+        wl_surface_set_buffer_scale(wl->surface, wl->scaling);
         spawn_cursor(wl);
         set_geometry(wl);
         wl->window_size = wl->vdparams;
@@ -711,6 +712,7 @@ static void surface_handle_enter(void *data, struct wl_surface *wl_surface,
     if (wl->scaling != wl->current_output->scale && wl->vo_opts->hidpi_window_scale) {
         double factor = (double)wl->scaling / wl->current_output->scale;
         wl->scaling = wl->current_output->scale;
+        wl_surface_set_buffer_scale(wl->surface, wl->scaling);
         spawn_cursor(wl);
         rescale_geometry_dimensions(wl, factor);
         wl->pending_vo_events |= VO_EVENT_DPI;