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surface: kill wlr_surface.previous 

This wlr_surface_state field was a special case because we don't
want to save the whole current state: for instance, the wlr_buffer
must not be saved or else wouldn't get released soon enough.

Let's just inline the state fields we need instead.
This commit is contained in:
Simon Ser 2021-08-11 15:19:26 +02:00
parent 111d4eafd7
commit 3f9e4f7a44
2 changed files with 19 additions and 7 deletions
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16
include/wlr/types/wlr_surface.h
View File

@ -124,10 +124,9 @@ 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. `previous` contains the state of
* the previous commit.
* be accessed by the compositor directly.
*/
struct wlr_surface_state current, pending, previous;
struct wlr_surface_state current, pending;
struct wl_list cached; // wlr_surface_state.cached_link
@ -150,9 +149,18 @@ struct wlr_surface {
struct wl_list current_outputs; // wlr_surface_output::link
void *data;
// private state
struct wl_listener renderer_destroy;
void *data;
struct {
int32_t scale;
enum wl_output_transform transform;
int width, height;
int buffer_width, buffer_height;
} previous;
};
struct wlr_subsurface_state {

10
types/wlr_surface.c
View File

@ -444,7 +444,13 @@ static void surface_commit_state(struct wlr_surface *surface,
surface->sy += next->dy;
surface_update_damage(&surface->buffer_damage, &surface->current, next);
surface_state_copy(&surface->previous, &surface->current);
surface->previous.scale = surface->current.scale;
surface->previous.transform = surface->current.transform;
surface->previous.width = surface->current.width;
surface->previous.height = surface->current.height;
surface->previous.buffer_width = surface->current.buffer_width;
surface->previous.buffer_height = surface->current.buffer_height;
surface_state_move(&surface->current, next);
if (invalid_buffer) {
@ -726,7 +732,6 @@ 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);
pixman_region32_fini(&surface->opaque_region);
pixman_region32_fini(&surface->input_region);
@ -766,7 +771,6 @@ struct wlr_surface *surface_create(struct wl_client *client,
surface_state_init(&surface->current);
surface_state_init(&surface->pending);
surface_state_init(&surface->previous);
surface->pending.seq = 1;
wl_signal_init(&surface->events.commit);