diff options
| -rw-r--r-- | include/wlr/types/wlr_compositor.h | 11 | ||||
| -rw-r--r-- | types/wlr_compositor.c | 17 |
2 files changed, 28 insertions, 0 deletions
diff --git a/include/wlr/types/wlr_compositor.h b/include/wlr/types/wlr_compositor.h index f65fbf84..e4ac7879 100644 --- a/include/wlr/types/wlr_compositor.h +++ b/include/wlr/types/wlr_compositor.h @@ -165,6 +165,8 @@ struct wlr_surface { bool opaque; int32_t preferred_buffer_scale; + bool preferred_buffer_transform_sent; + enum wl_output_transform preferred_buffer_transform; }; struct wlr_renderer; @@ -331,6 +333,15 @@ void wlr_surface_set_preferred_buffer_scale(struct wlr_surface *surface, int32_t scale); /** + * Set the preferred buffer transform for the surface. + * + * This sends an event to the client indicating the preferred transform to use + * for buffers attached to this surface. + */ +void wlr_surface_set_preferred_buffer_transform(struct wlr_surface *surface, + enum wl_output_transform transform); + +/** * Create the wl_compositor global, which can be used by clients to create * surfaces and regions. * diff --git a/types/wlr_compositor.c b/types/wlr_compositor.c index e6d4c25f..df7352b0 100644 --- a/types/wlr_compositor.c +++ b/types/wlr_compositor.c @@ -1106,6 +1106,23 @@ void wlr_surface_set_preferred_buffer_scale(struct wlr_surface *surface, surface->preferred_buffer_scale = scale; } +void wlr_surface_set_preferred_buffer_transform(struct wlr_surface *surface, + enum wl_output_transform transform) { + if (wl_resource_get_version(surface->resource) < + WL_SURFACE_PREFERRED_BUFFER_TRANSFORM_SINCE_VERSION) { + return; + } + + if (surface->preferred_buffer_transform == transform && + surface->preferred_buffer_transform_sent) { + return; + } + + wl_surface_send_preferred_buffer_transform(surface->resource, transform); + surface->preferred_buffer_transform_sent = true; + surface->preferred_buffer_transform = transform; +} + static const struct wl_compositor_interface compositor_impl; static struct wlr_compositor *compositor_from_resource( |