Implemented a kinda broken tty

2025-07-16 09:41:45 +00:00 · 2022-10-09 04:01:49 +03:00
parent e332fc57e0
commit 7c4d43fec3
11 changed files with 496 additions and 133 deletions
--- a/core/Video/Display.cpp
+++ b/core/Video/Display.cpp
@@ -0,0 +1,111 @@
+#include <display.hpp>
+#include <lock.hpp>
+#include <debug.h>
+
+extern uint64_t _binary_files_ter_powerline_v12n_psf_start;
+extern uint64_t _binary_files_ter_powerline_v12n_psf_end;
+extern uint64_t _binary_files_ter_powerline_v12n_psf_size;
+
+NEWLOCK(PrintLock);
+
+namespace Video
+{
+    char Display::Print(char Char, int Index)
+    {
+        SMARTLOCK(PrintLock);
+        switch (Char)
+        {
+        case '\b':
+        {
+            if (Buffers[Index]->CursorX > 0)
+                Buffers[Index]->CursorX -= this->GetCurrentFont()->GetInfo().Width;
+            return Char;
+        }
+        case '\t':
+        {
+            Buffers[Index]->CursorX = (Buffers[Index]->CursorX + 8) & ~(8 - 1);
+            return Char;
+        }
+        case '\r':
+        {
+            Buffers[Index]->CursorX = 0;
+            return Char;
+        }
+        case '\n':
+        {
+            Buffers[Index]->CursorX = 0;
+            Buffers[Index]->CursorY += this->GetCurrentFont()->GetInfo().Height;
+            return Char;
+        }
+        }
+
+        if (Buffers[Index]->CursorX + this->GetCurrentFont()->GetInfo().Width >= Buffers[Index]->Width)
+        {
+            Buffers[Index]->CursorX = 0;
+            Buffers[Index]->CursorY += this->GetCurrentFont()->GetInfo().Height;
+        }
+
+        if (Buffers[Index]->CursorY + this->GetCurrentFont()->GetInfo().Height >= Buffers[Index]->Height)
+        {
+            Buffers[Index]->CursorY = Buffers[Index]->Height - this->GetCurrentFont()->GetInfo().Height;
+            this->SetBuffer(Index);
+            Scroll(Index, 1);
+        }
+
+        if (CurrentFont->GetInfo().Type == FontType::PCScreenFont2)
+        {
+            // if (CurrentFont->PSF2Font->GlyphBuffer == (uint16_t *)0x01) // HAS UNICODE TABLE
+            //     Char = CurrentFont->PSF2Font->GlyphBuffer[Char];
+            int bytesperline = (CurrentFont->GetInfo().PSF2Font->Header->width + 7) / 8;
+            char *FontPtr = (char *)CurrentFont->GetInfo().StartAddress +
+                            CurrentFont->GetInfo().PSF2Font->Header->headersize +
+                            (Char > 0 && (unsigned char)Char < CurrentFont->GetInfo().PSF2Font->Header->length ? Char : 0) *
+                                CurrentFont->GetInfo().PSF2Font->Header->charsize;
+
+            for (unsigned long Y = Buffers[Index]->CursorY; Y < Buffers[Index]->CursorY + CurrentFont->GetInfo().PSF2Font->Header->height; Y++)
+            {
+                for (unsigned long X = Buffers[Index]->CursorX; X < Buffers[Index]->CursorX + CurrentFont->GetInfo().PSF2Font->Header->width; X++)
+                    if ((*FontPtr & (0b10000000 >> (X - Buffers[Index]->CursorX))) > 0)
+                        *(uint32_t *)((uint64_t)Buffers[Index]->Buffer + (Y * Buffers[Index]->Width + X) * (framebuffer.BitsPerPixel / 8)) = 0xFFFFFF;
+
+                FontPtr += bytesperline;
+            }
+            Buffers[Index]->CursorX += CurrentFont->GetInfo().PSF2Font->Header->width;
+            return Char;
+        }
+        else if (CurrentFont->GetInfo().Type == FontType::PCScreenFont1)
+        {
+            uint32_t *PixelPtr = (uint32_t *)Buffers[Index]->Buffer;
+            char *FontPtr = (char *)CurrentFont->GetInfo().PSF1Font->GlyphBuffer + (Char * CurrentFont->GetInfo().PSF1Font->Header->charsize);
+            for (unsigned long Y = Buffers[Index]->CursorY; Y < Buffers[Index]->CursorY + 16; Y++)
+            {
+                for (unsigned long X = Buffers[Index]->CursorX; X < Buffers[Index]->CursorX + 8; X++)
+                    if ((*FontPtr & (0b10000000 >> (X - Buffers[Index]->CursorX))) > 0)
+                        *(unsigned int *)(PixelPtr + X + (Y * Buffers[Index]->Width)) = Buffers[Index]->Color;
+                FontPtr++;
+            }
+            Buffers[Index]->CursorX += 8;
+            return Char;
+        }
+        return Char;
+    }
+
+    Display::Display(BootInfo::FramebufferInfo Info, bool LoadDefaultFont)
+    {
+        framebuffer = Info;
+        if (LoadDefaultFont)
+        {
+            CurrentFont = new Font(&_binary_files_ter_powerline_v12n_psf_start, &_binary_files_ter_powerline_v12n_psf_end, FontType::PCScreenFont2);
+            FontInfo Info = CurrentFont->GetInfo();
+            debug("Font loaded: %dx%d %s",
+                  Info.Width, Info.Height, Info.Type == FontType::PCScreenFont1 ? "PSF1" : "PSF2");
+        }
+        this->CreateBuffer(Info.Width, Info.Height, 0);
+    }
+
+    Display::~Display()
+    {
+        for (int i = 0; i < 16; i++)
+            DeleteBuffer(i);
+    }
+}