mirror of
https://github.com/hyprwm/xdg-desktop-portal-hyprland.git
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ab8ff54f4c
The goal is to control the rate of capture while in screencast, as it can represent a performance issue and can cause input lag and the feeling of having a laggy mouse. This commit addresses the issue reported in #66. The code measures the time elapsed to make a single screen capture, and calculates how much to wait for the next capture to achieve the targeted frame rate. To delay the capturing of the next frame, the code introduces timers into the event loop based on the event loop in https://github.com/emersion/mako Added a command-line argument and an entry in the config file as well for the max FPS. The default value is 0, meaning no rate control. Added code to measure the average FPS every 5 seconds and print it with DEBUG level.
72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
#ifndef XDPW_H
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#define XDPW_H
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#include <wayland-client.h>
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#ifdef HAVE_LIBSYSTEMD
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#include <systemd/sd-bus.h>
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#elif HAVE_LIBELOGIND
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#include <elogind/sd-bus.h>
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#elif HAVE_BASU
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#include <basu/sd-bus.h>
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#endif
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#include "screencast_common.h"
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#include "config.h"
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struct xdpw_state {
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struct wl_list xdpw_sessions;
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sd_bus *bus;
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struct wl_display *wl_display;
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struct pw_loop *pw_loop;
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struct xdpw_screencast_context screencast;
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uint32_t screencast_source_types; // bitfield of enum source_types
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uint32_t screencast_cursor_modes; // bitfield of enum cursor_modes
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uint32_t screencast_version;
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struct xdpw_config *config;
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int timer_poll_fd;
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struct wl_list timers;
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struct xdpw_timer *next_timer;
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};
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struct xdpw_request {
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sd_bus_slot *slot;
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};
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struct xdpw_session {
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struct wl_list link;
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sd_bus_slot *slot;
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char *session_handle;
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struct xdpw_screencast_instance *screencast_instance;
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};
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typedef void (*xdpw_event_loop_timer_func_t)(void *data);
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struct xdpw_timer {
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struct xdpw_state *state;
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xdpw_event_loop_timer_func_t func;
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void *user_data;
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struct timespec at;
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struct wl_list link; // xdpw_state::timers
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};
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enum {
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PORTAL_RESPONSE_SUCCESS = 0,
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PORTAL_RESPONSE_CANCELLED = 1,
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PORTAL_RESPONSE_ENDED = 2
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};
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int xdpw_screenshot_init(struct xdpw_state *state);
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int xdpw_screencast_init(struct xdpw_state *state);
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struct xdpw_request *xdpw_request_create(sd_bus *bus, const char *object_path);
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void xdpw_request_destroy(struct xdpw_request *req);
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struct xdpw_session *xdpw_session_create(struct xdpw_state *state, sd_bus *bus, char *object_path);
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void xdpw_session_destroy(struct xdpw_session *req);
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struct xdpw_timer *xdpw_add_timer(struct xdpw_state *state,
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uint64_t delay_ns, xdpw_event_loop_timer_func_t func, void *data);
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void xdpw_destroy_timer(struct xdpw_timer *timer);
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#endif
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