mirror of
https://github.com/RGBCube/serenity
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b96b2fb9be
The old methods are already can be considered deprecated, and now after we removed framebuffer devices entirely, we can safely remove these methods too, which simplfies the GenericGraphicsAdapter class a lot.
111 lines
4.8 KiB
C++
111 lines
4.8 KiB
C++
/*
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* Copyright (c) 2021, Sahan Fernando <sahan.h.fernando@gmail.com>
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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 <AK/BinaryBufferWriter.h>
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#include <AK/DistinctNumeric.h>
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#include <Kernel/Bus/VirtIO/Device.h>
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#include <Kernel/Bus/VirtIO/Queue.h>
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#include <Kernel/Graphics/GenericGraphicsAdapter.h>
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#include <Kernel/Graphics/VirtIOGPU/Protocol.h>
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namespace Kernel {
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#define VIRTIO_GPU_F_VIRGL (1 << 0)
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#define VIRTIO_GPU_F_EDID (1 << 1)
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#define VIRTIO_GPU_FLAG_FENCE (1 << 0)
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#define CONTROLQ 0
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#define CURSORQ 1
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#define MAX_VIRTIOGPU_RESOLUTION_WIDTH 3840
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#define MAX_VIRTIOGPU_RESOLUTION_HEIGHT 2160
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#define VIRTIO_GPU_EVENT_DISPLAY (1 << 0)
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class VirtIODisplayConnector;
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class VirtIOGPU3DDevice;
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class VirtIOGraphicsAdapter final
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: public GenericGraphicsAdapter
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, public VirtIO::Device {
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friend class VirtIODisplayConnector;
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friend class VirtIOGPU3DDevice;
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public:
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static NonnullRefPtr<VirtIOGraphicsAdapter> initialize(PCI::DeviceIdentifier const&);
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// FIXME: There's a VirtIO VGA GPU variant, so we should consider that
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virtual bool vga_compatible() const override { return false; }
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virtual void initialize() override;
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void initialize_3d_device();
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bool edid_feature_accepted() const;
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Graphics::VirtIOGPU::ResourceID allocate_resource_id(Badge<VirtIODisplayConnector>);
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Graphics::VirtIOGPU::ContextID allocate_context_id(Badge<VirtIODisplayConnector>);
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private:
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void flush_dirty_rectangle(Graphics::VirtIOGPU::ScanoutID, Graphics::VirtIOGPU::ResourceID, Graphics::VirtIOGPU::Protocol::Rect const& dirty_rect);
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struct Scanout {
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RefPtr<VirtIODisplayConnector> display_connector;
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};
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VirtIOGraphicsAdapter(PCI::DeviceIdentifier const&, NonnullOwnPtr<Memory::Region> scratch_space_region);
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ErrorOr<void> initialize_adapter();
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virtual bool handle_device_config_change() override;
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virtual void handle_queue_update(u16 queue_index) override;
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u32 get_pending_events();
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void clear_pending_events(u32 event_bitmask);
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// 3D Command stuff
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Graphics::VirtIOGPU::ContextID create_context();
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void attach_resource_to_context(Graphics::VirtIOGPU::ResourceID resource_id, Graphics::VirtIOGPU::ContextID context_id);
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void submit_command_buffer(Graphics::VirtIOGPU::ContextID, Function<size_t(Bytes)> buffer_writer);
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Graphics::VirtIOGPU::Protocol::TextureFormat get_framebuffer_format() const { return Graphics::VirtIOGPU::Protocol::TextureFormat::VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM; }
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auto& operation_lock() { return m_operation_lock; }
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Graphics::VirtIOGPU::ResourceID allocate_resource_id();
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Graphics::VirtIOGPU::ContextID allocate_context_id();
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PhysicalAddress start_of_scratch_space() const { return m_scratch_space->physical_page(0)->paddr(); }
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AK::BinaryBufferWriter create_scratchspace_writer()
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{
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return { Bytes(m_scratch_space->vaddr().as_ptr(), m_scratch_space->size()) };
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}
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void synchronous_virtio_gpu_command(PhysicalAddress buffer_start, size_t request_size, size_t response_size);
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void populate_virtio_gpu_request_header(Graphics::VirtIOGPU::Protocol::ControlHeader& header, Graphics::VirtIOGPU::Protocol::CommandType ctrl_type, u32 flags = 0);
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Graphics::VirtIOGPU::ResourceID create_2d_resource(Graphics::VirtIOGPU::Protocol::Rect rect);
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Graphics::VirtIOGPU::ResourceID create_3d_resource(Graphics::VirtIOGPU::Protocol::Resource3DSpecification const& resource_3d_specification);
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void delete_resource(Graphics::VirtIOGPU::ResourceID resource_id);
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void ensure_backing_storage(Graphics::VirtIOGPU::ResourceID resource_id, Memory::Region const& region, size_t buffer_offset, size_t buffer_length);
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void detach_backing_storage(Graphics::VirtIOGPU::ResourceID resource_id);
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void set_scanout_resource(Graphics::VirtIOGPU::ScanoutID scanout, Graphics::VirtIOGPU::ResourceID resource_id, Graphics::VirtIOGPU::Protocol::Rect rect);
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void transfer_framebuffer_data_to_host(Graphics::VirtIOGPU::ScanoutID scanout, Graphics::VirtIOGPU::ResourceID resource_id, Graphics::VirtIOGPU::Protocol::Rect const& rect);
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void flush_displayed_image(Graphics::VirtIOGPU::ResourceID resource_id, Graphics::VirtIOGPU::Protocol::Rect const& dirty_rect);
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ErrorOr<void> query_and_set_edid(u32 scanout_id, VirtIODisplayConnector& display_connector);
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size_t m_num_scanouts { 0 };
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Scanout m_scanouts[VIRTIO_GPU_MAX_SCANOUTS];
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VirtIO::Configuration const* m_device_configuration { nullptr };
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// Note: Resource ID 0 is invalid, and we must not allocate 0 as the first resource ID.
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Atomic<u32> m_resource_id_counter { 1 };
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Atomic<u32> m_context_id_counter { 1 };
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RefPtr<VirtIOGPU3DDevice> m_3d_device;
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bool m_has_virgl_support { false };
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// Synchronous commands
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WaitQueue m_outstanding_request;
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Spinlock m_operation_lock;
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NonnullOwnPtr<Memory::Region> m_scratch_space;
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};
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}
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