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output-damage: stop relying on output pending state on commit 

References: https://github.com/swaywm/wlroots/issues/2098
This commit is contained in:
Simon Ser 2021-01-10 17:07:31 +01:00
parent afdf4dc890
commit 1fb9535e99
2 changed files with 19 additions and 1 deletions
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3
include/wlr/types/wlr_output_damage.h
View File

@ -42,6 +42,8 @@ struct wlr_output_damage {
pixman_region32_t previous[WLR_OUTPUT_DAMAGE_PREVIOUS_LEN];
size_t previous_idx;
enum wlr_output_state_buffer_type pending_buffer_type;
struct {
struct wl_signal frame;
struct wl_signal destroy;
@ -52,6 +54,7 @@ struct wlr_output_damage {
struct wl_listener output_needs_frame;
struct wl_listener output_damage;
struct wl_listener output_frame;
struct wl_listener output_precommit;
struct wl_listener output_commit;
};

17
types/wlr_output_damage.c
View File

@ -44,6 +44,18 @@ static void output_handle_frame(struct wl_listener *listener, void *data) {
wlr_signal_emit_safe(&output_damage->events.frame, output_damage);
}
static void output_handle_precommit(struct wl_listener *listener, void *data) {
struct wlr_output_damage *output_damage =
wl_container_of(listener, output_damage, output_precommit);
struct wlr_output *output = output_damage->output;
if (output->pending.committed & WLR_OUTPUT_STATE_BUFFER) {
// TODO: find a better way to access this info without a precommit
// handler
output_damage->pending_buffer_type = output->pending.buffer_type;
}
}
static void output_handle_commit(struct wl_listener *listener, void *data) {
struct wlr_output_damage *output_damage =
wl_container_of(listener, output_damage, output_commit);
@ -58,7 +70,7 @@ static void output_handle_commit(struct wl_listener *listener, void *data) {
}
pixman_region32_t *prev;
switch (output_damage->output->pending.buffer_type) {
switch (output_damage->pending_buffer_type) {
case WLR_OUTPUT_STATE_BUFFER_RENDER:
// render-buffers have been swapped, rotate the damage
@ -106,6 +118,8 @@ struct wlr_output_damage *wlr_output_damage_create(struct wlr_output *output) {
output_damage->output_damage.notify = output_handle_damage;
wl_signal_add(&output->events.frame, &output_damage->output_frame);
output_damage->output_frame.notify = output_handle_frame;
wl_signal_add(&output->events.precommit, &output_damage->output_precommit);
output_damage->output_precommit.notify = output_handle_precommit;
wl_signal_add(&output->events.commit, &output_damage->output_commit);
output_damage->output_commit.notify = output_handle_commit;
@ -122,6 +136,7 @@ void wlr_output_damage_destroy(struct wlr_output_damage *output_damage) {
wl_list_remove(&output_damage->output_needs_frame.link);
wl_list_remove(&output_damage->output_damage.link);
wl_list_remove(&output_damage->output_frame.link);
wl_list_remove(&output_damage->output_precommit.link);
wl_list_remove(&output_damage->output_commit.link);
pixman_region32_fini(&output_damage->current);
for (size_t i = 0; i < WLR_OUTPUT_DAMAGE_PREVIOUS_LEN; ++i) {