xdg-desktop-portal-hyprland/include/screencast_common.h

#ifndef SCREENCAST_COMMON_H
#define SCREENCAST_COMMON_H

#include <pthread.h>
#include <pipewire/pipewire.h>
#include <spa/param/video/format-utils.h>
#include <libdrm/drm_fourcc.h>
#include <wayland-client-protocol.h>

// Disableable logger
//#define logger(...) printf(__VA_ARGS__)
#define logger(...)

struct damage {
	uint32_t x;
	uint32_t y;
	uint32_t width;
	uint32_t height;
};

struct simple_frame {
	uint32_t width;
	uint32_t height;
	uint32_t size;
	uint32_t stride;
	bool y_invert;
	uint64_t tv_sec;
	uint32_t tv_nsec;
	enum wl_shm_format format;
	struct damage *damage;

	struct wl_buffer *buffer;
	void *data;
};

struct pwr_type {
	struct spa_type_media_type media_type;
	struct spa_type_media_subtype media_subtype;
	struct spa_type_format_video format_video;
	struct spa_type_video_format video_format;
	uint32_t meta_cursor;
};

struct screencast_context {

	// pipewire
	struct pwr_type type;

	struct pw_main_loop *loop;
	struct spa_source *event;
	struct pw_core *core;
	struct pw_type *t;
	struct pw_remote *remote;
	struct spa_hook remote_listener;
	struct pw_stream *stream;
	struct spa_hook stream_listener;
	struct spa_video_info_raw pwr_format;
	uint32_t seq;
	uint32_t node_id;

	bool stream_state;

	pthread_t pwr_thread;

	// wlroots

	struct wl_display *display;
	struct wl_list output_list;
	struct wl_registry *registry;
	struct zwlr_screencopy_manager_v1 *screencopy_manager;
	struct wl_shm *shm;

	// main frame callback
	struct zwlr_screencopy_frame_v1 *frame_callback;

	// target output
	struct wayland_output *target_output;
	uint32_t framerate;
	bool with_cursor;

	// frame
	struct zwlr_screencopy_frame_v1 *wlr_frame;
	struct simple_frame simple_frame;

	// frame mutex
	pthread_mutex_t lock;

	// if something happens during capture
	int err;
	bool quit;
};

struct wayland_output {
	struct wl_list link;
	uint32_t id;
	struct wl_output *output;
	char *make;
	char *model;
	int width;
	int height;
	float framerate;
};

uint32_t pipewire_from_wl_shm(void *data);
char *strdup(const char *src);

#endif /* SCREENCAST_COMMON_H */