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75564b4a5f
This expands the reach of error propagation greatly throughout the kernel. Sadly, it also exposes the fact that we're allocating (and doing other fallible things) in constructors all over the place. This patch doesn't attempt to address that of course. That's work for our future selves.
41 lines
1.5 KiB
C++
41 lines
1.5 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/Graphics/Console/ContiguousFramebufferConsole.h>
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#include <Kernel/TTY/ConsoleManagement.h>
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namespace Kernel::Graphics {
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NonnullRefPtr<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_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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dbgln("Framebuffer Console: taking {} bytes", Memory::page_round_up(pitch * height));
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auto region_or_error = MM.allocate_kernel_region(m_framebuffer_address, Memory::page_round_up(pitch * height), "Framebuffer Console", 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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