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https://github.com/RGBCube/serenity
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9ee098b119
Like the HID, Audio and Storage subsystem, the Graphics subsystem (which
handles GPUs technically) exposes unix device files (typically in /dev).
To ensure consistency across the repository, move all related files to a
new directory under Kernel/Devices called "GPU".
Also remove the redundant "GPU" word from the VirtIO driver directory,
and the word "Graphics" from GraphicsManagement.{h,cpp} filenames.
42 lines
1.6 KiB
C++
42 lines
1.6 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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#include <Kernel/Devices/GPU/Console/ContiguousFramebufferConsole.h>
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#include <Kernel/TTY/ConsoleManagement.h>
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namespace Kernel::Graphics {
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NonnullLockRefPtr<ContiguousFramebufferConsole> ContiguousFramebufferConsole::initialize(PhysicalAddress framebuffer_address, size_t width, size_t height, size_t pitch)
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{
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return adopt_lock_ref(*new ContiguousFramebufferConsole(framebuffer_address, width, height, pitch));
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}
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ContiguousFramebufferConsole::ContiguousFramebufferConsole(PhysicalAddress framebuffer_address, size_t width, size_t height, size_t pitch)
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: GenericFramebufferConsole(width, height, pitch)
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, m_framebuffer_address(framebuffer_address)
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{
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set_resolution(width, height, pitch);
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}
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void ContiguousFramebufferConsole::set_resolution(size_t width, size_t height, size_t pitch)
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{
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m_width = width;
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m_height = height;
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m_pitch = pitch;
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size_t size = Memory::page_round_up(pitch * height).release_value_but_fixme_should_propagate_errors();
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dbgln("Framebuffer Console: taking {} bytes", size);
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auto region_or_error = MM.allocate_kernel_region(m_framebuffer_address, size, "Framebuffer Console"sv, Memory::Region::Access::ReadWrite, Memory::Region::Cacheable::Yes);
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VERIFY(!region_or_error.is_error());
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m_framebuffer_region = region_or_error.release_value();
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// Just to start cleanly, we clean the entire framebuffer
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memset(m_framebuffer_region->vaddr().as_ptr(), 0, pitch * height);
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ConsoleManagement::the().resolution_was_changed();
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}
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}
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