Jeremy Soller
64 lines
1.3 KiB
Rust
64 lines
1.3 KiB
Rust
use super::Display;
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pub struct DebugDisplay {
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pub (crate) display: Display,
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x: usize,
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y: usize,
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w: usize,
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h: usize,
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}
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impl DebugDisplay {
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pub fn new(display: Display) -> DebugDisplay {
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let w = display.width/8;
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let h = display.height/16;
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DebugDisplay {
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display,
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x: 0,
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y: 0,
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w: w,
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h: h,
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}
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}
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pub fn write_char(&mut self, c: char) {
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if self.x >= self.w || c == '\n' {
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self.x = 0;
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self.y += 1;
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}
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if self.y >= self.h {
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let new_y = self.h - 1;
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let d_y = self.y - new_y;
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self.display.scroll(d_y * 16);
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unsafe {
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self.display.sync(0, 0, self.display.width, self.display.height);
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}
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self.y = new_y;
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}
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if c != '\n' {
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self.display.char(
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self.x * 8, self.y * 16,
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c,
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0xFFFFFF
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);
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unsafe {
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self.display.sync(self.x * 8, self.y * 16, 8, 16);
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}
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self.x += 1;
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}
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}
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pub fn write(&mut self, buf: &[u8]) {
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for &b in buf {
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self.write_char(b as char);
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}
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}
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}
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