ladybird/Userland/Services/WindowServer/VirtualScreenBackend.h

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/*
* Copyright (c) 2022, kleines Filmröllchen <filmroellchen@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include "ScreenBackend.h"
#include "ScreenLayout.h"
#include <AK/Error.h>
#include <AK/Span.h>
namespace WindowServer {
class VirtualScreenBackend : public ScreenBackend {
public:
virtual ~VirtualScreenBackend();
VirtualScreenBackend() = default;
private:
friend class Screen;
virtual ErrorOr<void> open() override;
virtual void set_head_buffer(int index) override;
virtual ErrorOr<void> flush_framebuffer_rects(int, ReadonlySpan<FBRect>) override { return {}; }
virtual ErrorOr<void> flush_framebuffer() override { return {}; }
virtual ErrorOr<void> unmap_framebuffer() override;
virtual ErrorOr<void> map_framebuffer() override;
virtual ErrorOr<void> set_safe_head_mode_setting() override;
virtual ErrorOr<void> set_head_mode_setting(GraphicsHeadModeSetting) override;
virtual ErrorOr<GraphicsHeadModeSetting> get_head_mode_setting() override;
int m_height { 0 };
int m_width { 0 };
bool m_first_buffer_active { true };
};
}