43 lines
1.5 KiB
Markdown
43 lines
1.5 KiB
Markdown
[](https://github.com/rust-osdev/vga/actions?query=workflow%3ABuild) [](https://docs.rs/vga/)
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# vga
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This crate provides vga specific functions, data structures,
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and access to various registers.
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Memory addresses `0xA0000 -> 0xBFFFF` must be readable and writeable
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this crate to work properly.
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**Note: This crate is currently experimental and subject to change since it's in active development.**
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## Text Mode
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```rust
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use vga::colors::{Color16, TextModeColor};
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use vga::writers::{ScreenCharacter, TextWriter, Text80x25};
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let text_mode = Text80x25::new();
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let color = TextModeColor::new(Color16::Yellow, Color16::Black);
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let screen_character = ScreenCharacter::new(b'T', color);
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text_mode.set_mode();
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text_mode.clear_screen();
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text_mode.write_character(0, 0, screen_character);
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```
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## Graphics Mode
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```rust
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use vga::colors::Color16;
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use vga::writers::{Graphics640x480x16, GraphicsWriter};
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let mode = Graphics640x480x16::new();
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mode.set_mode();
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mode.clear_screen(Color16::Black);
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mode.draw_line((80, 60), (80, 420), Color16::White);
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mode.draw_line((80, 60), (540, 60), Color16::White);
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mode.draw_line((80, 420), (540, 420), Color16::White);
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mode.draw_line((540, 420), (540, 60), Color16::White);
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mode.draw_line((80, 90), (540, 90), Color16::White);
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for (offset, character) in "Hello World!".chars().enumerate() {
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mode.draw_character(270 + offset * 8, 72, character, Color16::White)
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}
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```
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