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Kernel/Core/Video/Font.cpp
2022-12-21 00:43:51 +02:00

55 lines
2.2 KiB
C++

#include <display.hpp>
#include <debug.h>
#include <cstring>
namespace Video
{
Font::Font(uintptr_t *Start, uintptr_t *End, FontType Type)
{
trace("Initializing font with start %#llx and end %#llx Type: %d", Start, End, Type);
this->Info.StartAddress = Start;
this->Info.EndAddress = End;
this->Info.Type = Type;
if (Type == FontType::PCScreenFont2)
{
this->Info.PSF2Font = new PSF2_FONT;
uintptr_t FontDataLength = End - Start;
PSF2_HEADER *font2 = (PSF2_HEADER *)KernelAllocator.RequestPages(FontDataLength / PAGE_SIZE + 1);
for (uintptr_t i = 0; i < FontDataLength / PAGE_SIZE + 1; i++)
Memory::Virtual().Map((void *)(font2 + (i * PAGE_SIZE)), (void *)(font2 + (i * PAGE_SIZE)), Memory::PTFlag::RW);
memcpy((void *)font2, Start, FontDataLength);
this->Info.Width = font2->width;
this->Info.Height = font2->height;
if (font2->magic[0] != PSF2_MAGIC0 || font2->magic[1] != PSF2_MAGIC1 || font2->magic[2] != PSF2_MAGIC2 || font2->magic[3] != PSF2_MAGIC3)
error("Font2 magic mismatch.");
this->Info.PSF2Font->Header = font2;
this->Info.PSF2Font->GlyphBuffer = reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(Start) + sizeof(PSF2_HEADER));
}
else if (Type == FontType::PCScreenFont1)
{
this->Info.PSF1Font = new PSF1_FONT;
PSF1_HEADER *font1 = (PSF1_HEADER *)Start;
if (font1->magic[0] != PSF1_MAGIC0 || font1->magic[1] != PSF1_MAGIC1)
error("Font1 magic mismatch.");
uint32_t glyphBufferSize = font1->charsize * 256;
if (font1->mode == 1) // 512 glyph mode
glyphBufferSize = font1->charsize * 512;
void *glyphBuffer = reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(Start) + sizeof(PSF1_HEADER));
this->Info.PSF1Font->Header = font1;
this->Info.PSF1Font->GlyphBuffer = glyphBuffer;
UNUSED(glyphBufferSize); // TODO: Use this in the future?
// TODO: Get font size.
this->Info.Width = 16;
this->Info.Height = 8;
}
}
Font::~Font()
{
}
}