kwingrab.cpp File Reference

KWin direct ScreenCast capture via zkde_screencast_unstable_v1 Wayland protocol. More...

#include <algorithm>
#include <array>
#include <atomic>
#include <chrono>
#include <fstream>
#include <memory>
#include <pwd.h>
#include <ranges>
#include <string>
#include <string_view>
#include <thread>
#include <lizardbyte/common/env.h>
#include <pipewire/pipewire.h>
#include <poll.h>
#include <unistd.h>
#include <wayland-client.h>
#include <kde-output-order-v1.h>
#include <zkde-screencast-unstable-v1.h>
#include "cuda.h"
#include "graphics.h"
#include "pipewire.cpp"
#include "src/platform/common.h"
#include "src/video.h"

Include dependency graph for kwingrab.cpp:

Classes
class	kwin::kwin_t
struct	kwin::output_parameter_t
	KWin screencast output name and geometry. More...
class	kwin::screencast_permission_helper_t
class	kwin::screencast_t

Functions
bool	platf::kwin_available ()
	Check whether KWin screencast capture is available.
std::shared_ptr< display_t >	platf::kwin_display (mem_type_e hwdevice_type, const std::string &display_name, const video::config_t &config)
	Create a KWin screencast display backend.
std::vector< std::string >	platf::kwin_display_names ()
	Enumerate KWin screencast display names.

Detailed Description

KWin direct ScreenCast capture via zkde_screencast_unstable_v1 Wayland protocol.

Bypasses xdg-desktop-portal entirely. Sunshine connects directly to KWin's Wayland protocol to obtain a PipeWire node_id, then streams frames via PipeWire.

Chain: KWin -> Wayland kde_screencast -> PipeWire -> Sunshine

Function Documentation

kwin_available()

bool platf::kwin_available

(

)

Check whether KWin screencast capture is available.

Returns

True when KWin capture support is available.

kwin_display()

std::shared_ptr< display_t > platf::kwin_display	(	mem_type_e	hwdevice_type,
		const std::string &	display_name,
		const video::config_t &	config )

Create a KWin screencast display backend.

Parameters

hwdevice_type	Hardware device type requested for capture or encode.
display_name	Display name.
config	Configuration values to apply.

Returns

KWin/PipeWire display backend, or nullptr when initialization fails.

kwin_display_names()

std::vector< std::string > platf::kwin_display_names

(

)

Enumerate KWin screencast display names.

Returns

KWin display names, or an empty list when KWin capture is unavailable.