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compositor: add wlr_surface_set_preferred_buffer_transform()

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References: https://gitlab.freedesktop.org/wayland/wayland/-/merge_requests/220
This commit is contained in:
Simon Ser 2023-02-08 14:44:40 +01:00
parent 42edd36785
commit dae2deb3c9
2 changed files with 28 additions and 0 deletions
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11
include/wlr/types/wlr_compositor.h
View file

@ -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;
@ -330,6 +332,15 @@ void wlr_surface_unlock_cached(struct wlr_surface *surface, uint32_t seq);
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.

17
types/wlr_compositor.c
View file

@ -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(