From 1b964278762dde86b0b737bd9a34fec569339f54 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Thu, 16 Apr 2026 10:29:30 +0200
Subject: x86_64: use p1204 project layout

---
 arch/x86_64/src/vga/text/buffer.cpp | 101 ------------------------------------
 arch/x86_64/src/vga/text/device.cpp |  60 ---------------------
 2 files changed, 161 deletions(-)
 delete mode 100644 arch/x86_64/src/vga/text/buffer.cpp
 delete mode 100644 arch/x86_64/src/vga/text/device.cpp

(limited to 'arch/x86_64/src/vga')

diff --git a/arch/x86_64/src/vga/text/buffer.cpp b/arch/x86_64/src/vga/text/buffer.cpp
deleted file mode 100644
index 498b9a3..0000000
--- a/arch/x86_64/src/vga/text/buffer.cpp
+++ /dev/null
@@ -1,101 +0,0 @@
-#include <arch/vga/text/buffer.hpp>
-
-#include <arch/vga/text/attribute.hpp>
-
-#include <algorithm>
-#include <bit>
-#include <cstddef>
-#include <span>
-#include <string_view>
-#include <utility>
-
-namespace arch::vga::text
-{
-  buffer::buffer(std::size_t width, std::size_t height, cell * start, std::size_t position)
-      : m_width{width}
-      , m_height{height}
-      , m_buffer{start, m_width * m_height}
-      , m_position{position}
-  {}
-
-  auto buffer::clear() -> void
-  {
-    m_position = 0;
-    std::ranges::fill(m_buffer, std::pair{'\0', static_cast<std::byte>(0x00)});
-  }
-
-  auto buffer::write(std::string_view code_points, attribute attribute) -> void
-  {
-    std::ranges::for_each(code_points, [&](auto code_point) -> void { write(code_point, attribute); });
-  }
-
-  auto buffer::write(char code_point, attribute attribute) -> void
-  {
-    if (m_position + 1 > m_height * m_width)
-    {
-      scroll();
-    }
-
-    if (!handle_special_code_point(code_point, attribute))
-    {
-      do_write(code_point, attribute);
-    }
-  };
-
-  auto buffer::newline() -> void
-  {
-    auto free_glyphs_in_line = m_width - column();
-    m_position += free_glyphs_in_line;
-  }
-
-  auto buffer::scroll(std::size_t nof_lines) -> void
-  {
-    auto scroll_count = std::min(nof_lines, m_height);
-
-    auto scroll_start = m_buffer.begin() + (scroll_count * m_width);
-    std::ranges::move(scroll_start, m_buffer.end(), m_buffer.begin());
-
-    auto clear_start = m_buffer.begin() + (m_height - scroll_count) * m_width;
-    std::ranges::fill(clear_start, m_buffer.end(), cell{});
-
-    m_position = (line() - scroll_count) * m_width;
-  }
-
-  auto buffer::column() const noexcept -> std::ptrdiff_t
-  {
-    return m_position % m_width;
-  }
-
-  auto buffer::line() const noexcept -> std::ptrdiff_t
-  {
-    return m_position / m_width;
-  }
-  auto buffer::handle_special_code_point(char code_point, attribute attribute) -> bool
-  {
-    switch (code_point)
-    {
-      case '\n':
-        newline();
-        return true;
-      case '\r':
-        m_position -= column();
-        return true;
-      case '\t':
-        do_write("  ", attribute);
-        return true;
-      default:
-        return false;
-    }
-  }
-
-  auto buffer::do_write(std::string_view code_points, attribute attribute) -> void
-  {
-    std::ranges::for_each(code_points, [&](auto code_point) -> void { do_write(code_point, attribute); });
-  }
-
-  auto buffer::do_write(char code_point, attribute attribute) -> void
-  {
-    m_buffer[m_position++] = std::pair{code_point, std::bit_cast<std::byte>(attribute)};
-  }
-
-}  // namespace arch::vga::text
diff --git a/arch/x86_64/src/vga/text/device.cpp b/arch/x86_64/src/vga/text/device.cpp
deleted file mode 100644
index 8468358..0000000
--- a/arch/x86_64/src/vga/text/device.cpp
+++ /dev/null
@@ -1,60 +0,0 @@
-#include <arch/boot/boot.hpp>
-#include <arch/boot/ld.hpp>
-#include <arch/vga/crtc.hpp>
-#include <arch/vga/text.hpp>
-
-#include <kapi/cio.hpp>
-
-#include <bit>
-#include <cstddef>
-#include <cstdint>
-#include <string_view>
-
-namespace arch::vga::text
-{
-  namespace
-  {
-    constexpr auto default_buffer_address = std::uintptr_t{0xb8000};
-    constexpr auto default_buffer_width = 80z;
-    constexpr auto default_buffer_height = 25z;
-
-    constexpr auto bit_cursor_enabled = 5U;
-  }  // namespace
-
-  device::device()
-      : m_buffer{
-          default_buffer_width, default_buffer_height,
-          std::bit_cast<buffer::cell *>(default_buffer_address + std::bit_cast<std::uintptr_t>(&boot::TEACHOS_VMA)),
-          kapi::boot::bootstrap_information.vga_buffer_index}
-  {
-    clear();
-  }
-
-  auto device::clear() -> void
-  {
-    m_buffer.clear();
-  }
-
-  auto device::cursor(bool enabled) -> void
-  {
-    auto cursor_disable_byte = std::byte{!enabled} << bit_cursor_enabled;
-
-    crtc::address::write(crtc::registers::cursor_start);
-    crtc::data::write(crtc::data::read() | cursor_disable_byte);
-  }
-
-  auto device::write(kapi::cio::output_stream stream, std::string_view text) -> void
-  {
-    auto attributes = [&] -> attribute {
-      switch (stream)
-      {
-        case kapi::cio::output_stream::stderr:
-          return red_on_black;
-        default:
-          return green_on_black;
-      }
-    }();
-    m_buffer.write(text, attributes);
-  }
-
-}  // namespace arch::vga::text
-- 
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