swayfx/include/sway/output.h
Kenny Levinsen d1eab10266 output: Schedule idle frames if we do not render
Repaint scheduling delays output render and frame done events from
output frame events, and block idle frame events from being scheduled in
between output frame done and output render in this period of time.

If a surface is committed after its frame done event, but before output
render, idle frame requests will be blocked, and the surface relies on
the upcoming render to schedule a frame.

If when the repaint timer expires, output render is deemed unnecessary,
no frame will be scheduled. This can lead to surfaces never having their
frame callbacks fire.

To fix this, we store that a surface has requested a frame in
surface_needs_frame. When the repaint expires, if no render is deemed
necessary, we check this flag and schedule an idle frame.

Fixes #4768
2019-12-01 12:44:07 +01:00

175 lines
5.3 KiB
C

#ifndef _SWAY_OUTPUT_H
#define _SWAY_OUTPUT_H
#include <time.h>
#include <unistd.h>
#include <wayland-server-core.h>
#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_output.h>
#include "config.h"
#include "sway/tree/node.h"
#include "sway/tree/view.h"
struct sway_server;
struct sway_container;
struct sway_output_state {
list_t *workspaces;
struct sway_workspace *active_workspace;
};
struct sway_output {
struct sway_node node;
struct wlr_output *wlr_output;
struct sway_server *server;
struct wl_list link;
struct wl_list layers[4]; // sway_layer_surface::link
struct wlr_box usable_area;
struct timespec last_frame;
struct wlr_output_damage *damage;
int lx, ly; // layout coords
int width, height; // transformed buffer size
enum wl_output_subpixel detected_subpixel;
enum scale_filter_mode scale_filter;
// last applied mode when the output is DPMS'ed
struct wlr_output_mode *current_mode;
bool enabled, configured;
list_t *workspaces;
struct sway_output_state current;
struct wl_listener destroy;
struct wl_listener mode;
struct wl_listener transform;
struct wl_listener scale;
struct wl_listener present;
struct wl_listener damage_destroy;
struct wl_listener damage_frame;
struct {
struct wl_signal destroy;
} events;
struct timespec last_presentation;
uint32_t refresh_nsec;
int max_render_time; // In milliseconds
struct wl_event_source *repaint_timer;
bool surface_needs_frame;
};
struct sway_output *output_create(struct wlr_output *wlr_output);
void output_destroy(struct sway_output *output);
void output_begin_destroy(struct sway_output *output);
struct sway_output *output_from_wlr_output(struct wlr_output *output);
struct sway_output *output_get_in_direction(struct sway_output *reference,
enum wlr_direction direction);
void output_add_workspace(struct sway_output *output,
struct sway_workspace *workspace);
typedef void (*sway_surface_iterator_func_t)(struct sway_output *output, struct sway_view *view,
struct wlr_surface *surface, struct wlr_box *box, float rotation,
void *user_data);
int output_repaint_timer_handler(void *data);
void output_damage_whole(struct sway_output *output);
void output_damage_surface(struct sway_output *output, double ox, double oy,
struct wlr_surface *surface, bool whole);
void output_damage_from_view(struct sway_output *output,
struct sway_view *view);
void output_damage_box(struct sway_output *output, struct wlr_box *box);
void output_damage_whole_container(struct sway_output *output,
struct sway_container *con);
// this ONLY includes the enabled outputs
struct sway_output *output_by_name_or_id(const char *name_or_id);
// this includes all the outputs, including disabled ones
struct sway_output *all_output_by_name_or_id(const char *name_or_id);
void output_sort_workspaces(struct sway_output *output);
bool output_enable(struct sway_output *output, struct output_config *oc);
void output_disable(struct sway_output *output);
bool output_has_opaque_overlay_layer_surface(struct sway_output *output);
struct sway_workspace *output_get_active_workspace(struct sway_output *output);
void output_render(struct sway_output *output, struct timespec *when,
pixman_region32_t *damage);
void output_surface_for_each_surface(struct sway_output *output,
struct wlr_surface *surface, double ox, double oy,
sway_surface_iterator_func_t iterator, void *user_data);
void output_view_for_each_surface(struct sway_output *output,
struct sway_view *view, sway_surface_iterator_func_t iterator,
void *user_data);
void output_view_for_each_popup(struct sway_output *output,
struct sway_view *view, sway_surface_iterator_func_t iterator,
void *user_data);
void output_layer_for_each_surface(struct sway_output *output,
struct wl_list *layer_surfaces, sway_surface_iterator_func_t iterator,
void *user_data);
#if HAVE_XWAYLAND
void output_unmanaged_for_each_surface(struct sway_output *output,
struct wl_list *unmanaged, sway_surface_iterator_func_t iterator,
void *user_data);
#endif
void output_drag_icons_for_each_surface(struct sway_output *output,
struct wl_list *drag_icons, sway_surface_iterator_func_t iterator,
void *user_data);
void output_for_each_workspace(struct sway_output *output,
void (*f)(struct sway_workspace *ws, void *data), void *data);
void output_for_each_container(struct sway_output *output,
void (*f)(struct sway_container *con, void *data), void *data);
struct sway_workspace *output_find_workspace(struct sway_output *output,
bool (*test)(struct sway_workspace *ws, void *data), void *data);
struct sway_container *output_find_container(struct sway_output *output,
bool (*test)(struct sway_container *con, void *data), void *data);
void output_get_box(struct sway_output *output, struct wlr_box *box);
enum sway_container_layout output_get_default_layout(
struct sway_output *output);
void render_rect(struct sway_output *output,
pixman_region32_t *output_damage, const struct wlr_box *_box,
float color[static 4]);
void premultiply_alpha(float color[4], float opacity);
void scale_box(struct wlr_box *box, float scale);
enum wlr_direction opposite_direction(enum wlr_direction d);
void handle_output_layout_change(struct wl_listener *listener, void *data);
void handle_output_manager_apply(struct wl_listener *listener, void *data);
void handle_output_manager_test(struct wl_listener *listener, void *data);
#endif