diff options
Diffstat (limited to 'arch/x86_64/src/video/vga/text.cpp')
| -rw-r--r-- | arch/x86_64/src/video/vga/text.cpp | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/arch/x86_64/src/video/vga/text.cpp b/arch/x86_64/src/video/vga/text.cpp deleted file mode 100644 index b070a0a..0000000 --- a/arch/x86_64/src/video/vga/text.cpp +++ /dev/null @@ -1,66 +0,0 @@ -#include "arch/video/vga/text.hpp" - -#include "arch/video/vga/io.hpp" -#include "memory/asm_pointer.hpp" - -#include <algorithm> -#include <string_view> -#include <utility> - -extern "C" std::pair<char, teachos::arch::video::vga::text::attribute> * vga_buffer_pointer; - -namespace teachos::arch::video::vga::text -{ - namespace - { - auto constexpr DEFAULT_TEXT_BUFFER_WIDTH = 80U; - auto constexpr DEFAULT_TEXT_BUFFER_HEIGHT = 25U; - - auto constinit text_buffer = teachos::memory::asm_pointer{vga_buffer_pointer}; - } // namespace - - auto clear(attribute attribute) -> void - { - *text_buffer = reinterpret_cast<decltype(text_buffer)::pointer>(DEFAULT_VGA_TEXT_BUFFER_ADDRESS); - std::ranges::fill_n(*text_buffer, 2000, std::pair{' ', attribute}); - } - - auto cursor(bool enabled) -> void - { - auto cursor_disable_byte = std::byte{!enabled} << 5; - - crtc::address_port::write(crtc::registers::cursor_start); - crtc::data_port::write(vga::crtc::data_port::read() | cursor_disable_byte); - } - - auto newline() -> void - { - auto base = reinterpret_cast<decltype(text_buffer)::pointer>(DEFAULT_VGA_TEXT_BUFFER_ADDRESS); - auto & raw_buffer = *text_buffer; - auto current_line = (raw_buffer - base) / DEFAULT_TEXT_BUFFER_WIDTH; - auto next_line = current_line + 1; - - if (next_line >= DEFAULT_TEXT_BUFFER_HEIGHT) - { - auto begin = base + DEFAULT_TEXT_BUFFER_WIDTH; - auto end = base + DEFAULT_TEXT_BUFFER_WIDTH * DEFAULT_TEXT_BUFFER_HEIGHT; - std::ranges::move(begin, end, base); - raw_buffer = base + current_line * DEFAULT_TEXT_BUFFER_WIDTH; - } - else - { - raw_buffer = base + next_line * DEFAULT_TEXT_BUFFER_WIDTH; - } - } - - auto write_char(char code_point, attribute attribute) -> void - { - auto & p = *text_buffer; - (*p++) = std::pair{code_point, attribute}; - }; - - auto write(std::string_view code_points, attribute attribute) -> void - { - std::ranges::for_each(code_points, [&](auto code_point) { write_char(code_point, attribute); }); - } -} // namespace teachos::arch::video::vga::text |
