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https://github.com/RGBCube/serenity
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4ff6150f1b
This ioctl is more appropriate when the hardware supports flushing of the entire framebuffer, so we use that instead of the previous default FB_IOCTL_FLUSH_HEAD_BUFFERS ioctl.
50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/*
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* Copyright (c) 2022, kleines Filmröllchen <filmroellchen@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include "ScreenBackend.h"
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#include "ScreenLayout.h"
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#include <AK/Error.h>
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#include <AK/Span.h>
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#include <AK/String.h>
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#include <sys/ioctl_numbers.h>
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namespace WindowServer {
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class HardwareScreenBackend : public ScreenBackend {
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public:
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virtual ~HardwareScreenBackend();
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HardwareScreenBackend(String device, bool display_connector_device_backed);
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virtual ErrorOr<void> open() override;
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virtual void set_head_buffer(int index) override;
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virtual ErrorOr<void> flush_framebuffer_rects(int buffer_index, Span<FBRect const> rects) override;
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virtual ErrorOr<void> flush_framebuffer() override;
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virtual ErrorOr<void> unmap_framebuffer() override;
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virtual ErrorOr<void> map_framebuffer() override;
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virtual ErrorOr<void> set_head_resolution(FBHeadResolution) override;
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virtual ErrorOr<FBHeadProperties> get_head_properties() override;
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virtual ErrorOr<void> write_all_contents(Gfx::IntRect const&) override;
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String m_device {};
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int m_framebuffer_fd { -1 };
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bool const display_connector_device_backed { false };
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Gfx::ARGB32* scanline(int buffer_index, int y) const
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{
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size_t buffer_offset = buffer_index == 1 ? m_back_buffer_offset : 0;
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return reinterpret_cast<Gfx::ARGB32*>(((u8*)m_framebuffer) + buffer_offset + (y * m_pitch));
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}
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};
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}
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