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surface: add wlr_surface.previous

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emersion 2018-07-01 11:54:42 +01:00
parent 78555abba3
commit 012e38fbe5
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GPG key ID: 0FDE7BE0E88F5E48
2 changed files with 9 additions and 8 deletions
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5
include/wlr/types/wlr_surface.h
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@ -64,9 +64,10 @@ struct wlr_surface {
/**
* `current` contains the current, committed surface state. `pending`
* accumulates state changes from the client between commits and shouldn't
* be accessed by the compositor directly.
* be accessed by the compositor directly. `previous` contains the state of
* the previous commit.
*/
struct wlr_surface_state current, pending;
struct wlr_surface_state current, pending, previous;
const char *role; // the lifetime-bound role or null
struct {

12
types/wlr_surface.c
View file

@ -339,6 +339,7 @@ static void surface_commit_pending(struct wlr_surface *surface) {
surface_update_damage(&surface->buffer_damage,
&surface->current, &surface->pending);
surface_state_move(&surface->previous, &surface->current);
surface_state_move(&surface->current, &surface->pending);
if (invalid_buffer) {
@ -548,6 +549,7 @@ static void surface_handle_resource_destroy(struct wl_resource *resource) {
wl_list_remove(&surface->renderer_destroy.link);
surface_state_finish(&surface->pending);
surface_state_finish(&surface->current);
surface_state_finish(&surface->previous);
pixman_region32_fini(&surface->buffer_damage);
wlr_buffer_unref(surface->buffer);
free(surface);
@ -586,6 +588,7 @@ struct wlr_surface *wlr_surface_create(struct wl_client *client,
surface_state_init(&surface->current);
surface_state_init(&surface->pending);
surface_state_init(&surface->previous);
wl_signal_init(&surface->events.commit);
wl_signal_init(&surface->events.destroy);
@ -792,16 +795,13 @@ static void subsurface_role_committed(struct wlr_surface *surface, void *data) {
dy = tmp;
}
// TODO: take the previous size
pixman_region32_union_rect(&surface->buffer_damage,
&surface->buffer_damage,
dx * surface->current.scale, dy * surface->current.scale,
surface->current.width,
surface->current.height);
dx * surface->previous.scale, dy * surface->previous.scale,
surface->previous.width, surface->previous.height);
pixman_region32_union_rect(&surface->buffer_damage,
&surface->buffer_damage, 0, 0,
surface->pending.width,
surface->pending.height);
surface->current.width, surface->current.height);
}
}