mirror of
https://github.com/Fennix-Project/Kernel.git
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81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
/*
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This file is part of Fennix Kernel.
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Fennix Kernel is free software: you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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Fennix Kernel is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <display.hpp>
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#include <debug.h>
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#include <cstring>
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namespace Video
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{
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Font::Font(uintptr_t *Start, uintptr_t *End, FontType Type)
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{
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trace("Initializing font with start %#lx and end %#lx Type: %d", Start, End, Type);
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this->Info.StartAddress = Start;
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this->Info.EndAddress = End;
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this->Info.Type = Type;
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size_t FontDataLength = End - Start;
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if (Type == FontType::PCScreenFont2)
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{
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this->Info.PSF2Font = new PSF2_FONT;
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PSF2_HEADER *font2 = (PSF2_HEADER *)KernelAllocator.RequestPages(TO_PAGES(FontDataLength + 1));
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memcpy((void *)font2, Start, FontDataLength);
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Memory::Virtual().Map((void *)font2, (void *)font2,
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FontDataLength, Memory::PTFlag::RW);
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if (font2->magic[0] != PSF2_MAGIC0 || font2->magic[1] != PSF2_MAGIC1 ||
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font2->magic[2] != PSF2_MAGIC2 || font2->magic[3] != PSF2_MAGIC3)
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{
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error("Font2 magic mismatch.");
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KernelAllocator.FreePages((void *)font2, TO_PAGES(FontDataLength + 1));
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return;
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}
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this->Info.PSF2Font->Header = font2;
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this->Info.PSF2Font->GlyphBuffer =
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r_cst(void *, r_cst(uintptr_t, Start) + sizeof(PSF2_HEADER));
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this->Info.Width = font2->width;
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this->Info.Height = font2->height;
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}
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else if (Type == FontType::PCScreenFont1)
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{
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this->Info.PSF1Font = new PSF1_FONT;
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PSF1_HEADER *font1 = (PSF1_HEADER *)Start;
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if (font1->magic[0] != PSF1_MAGIC0 || font1->magic[1] != PSF1_MAGIC1)
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error("Font1 magic mismatch.");
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uint32_t glyphBufferSize = font1->charsize * 256;
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if (font1->mode == 1) // 512 glyph mode
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glyphBufferSize = font1->charsize * 512;
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void *glyphBuffer =
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r_cst(void *, r_cst(uintptr_t, Start) + sizeof(PSF1_HEADER));
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this->Info.PSF1Font->Header = font1;
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this->Info.PSF1Font->GlyphBuffer = glyphBuffer;
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UNUSED(glyphBufferSize); // TODO: Use this in the future?
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// TODO: Get font size.
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this->Info.Width = 16;
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this->Info.Height = 8;
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}
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}
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Font::~Font()
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{
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}
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}
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