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surface: add wlr_surface.opaque_region

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This commit is contained in:
emersion 2018-07-13 10:54:51 +01:00
parent c4915d1492
commit 5bb272d7f3
2 changed files with 28 additions and 0 deletions
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6
include/wlr/types/wlr_surface.h
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@ -66,6 +66,12 @@ struct wlr_surface {
* just like the buffer's texture.
*/
pixman_region32_t buffer_damage;
/**
* The current opaque region, in surface-local coordinates. It is clipped to
* the surface bounds. If the surface's buffer is using a fully opaque
* format, this is set to the whole surface.
*/
pixman_region32_t opaque_region;
/**
* `current` contains the current, committed surface state. `pending`
* accumulates state changes from the client between commits and shouldn't

22
types/wlr_surface.c
View file

@ -340,6 +340,25 @@ static void surface_apply_damage(struct wlr_surface *surface) {
surface->buffer = buffer;
}
static void surface_update_opaque_region(struct wlr_surface *surface) {
struct wlr_texture *texture = wlr_surface_get_texture(surface);
if (texture == NULL) {
pixman_region32_clear(&surface->opaque_region);
return;
}
if (wlr_texture_is_opaque(texture)) {
pixman_region32_init_rect(&surface->opaque_region,
0, 0, surface->current.width, surface->current.height);
return;
}
pixman_region32_copy(&surface->opaque_region, &surface->current.opaque);
pixman_region32_intersect_rect(&surface->opaque_region,
&surface->opaque_region,
0, 0, surface->current.width, surface->current.height);
}
static void surface_commit_pending(struct wlr_surface *surface) {
bool invalid_buffer = surface->pending.committed & WLR_SURFACE_STATE_BUFFER;
@ -356,6 +375,7 @@ static void surface_commit_pending(struct wlr_surface *surface) {
if (invalid_buffer) {
surface_apply_damage(surface);
}
surface_update_opaque_region(surface);
// commit subsurface order
struct wlr_subsurface *subsurface;
@ -562,6 +582,7 @@ static void surface_handle_resource_destroy(struct wl_resource *resource) {
surface_state_finish(&surface->current);
surface_state_finish(&surface->previous);
pixman_region32_fini(&surface->buffer_damage);
pixman_region32_fini(&surface->opaque_region);
wlr_buffer_unref(surface->buffer);
free(surface);
}
@ -607,6 +628,7 @@ struct wlr_surface *wlr_surface_create(struct wl_client *client,
wl_list_init(&surface->subsurfaces);
wl_list_init(&surface->subsurface_pending_list);
pixman_region32_init(&surface->buffer_damage);
pixman_region32_init(&surface->opaque_region);
wl_signal_add(&renderer->events.destroy, &surface->renderer_destroy);
surface->renderer_destroy.notify = surface_handle_renderer_destroy;