Commit 60f88081 authored by Jeremy Soller's avatar Jeremy Soller

Invert on cursor

parent febfbfed
......@@ -103,6 +103,38 @@ impl Display {
}
}
/// Invert a rectangle
pub fn invert(&mut self, x: usize, y: usize, w: usize, h: usize) {
let start_y = cmp::min(self.height - 1, y);
let end_y = cmp::min(self.height, y + h);
let start_x = cmp::min(self.width - 1, x);
let len = cmp::min(self.width, x + w) - start_x;
let mut offscreen_ptr = self.offscreen.as_mut_ptr() as usize;
let stride = self.width * 4;
let offset = y * stride + start_x * 4;
offscreen_ptr += offset;
let mut rows = end_y - start_y;
while rows > 0 {
let mut row_ptr = offscreen_ptr;
let mut cols = len;
while cols > 0 {
unsafe {
let color = *(row_ptr as *mut u32);
*(row_ptr as *mut u32) = !color;
}
row_ptr += 4;
cols -= 1;
}
offscreen_ptr += stride;
rows -= 1;
}
}
/// Draw a character
#[cfg(not(feature="rusttype"))]
pub fn char(&mut self, x: usize, y: usize, character: char, color: u32, _bold: bool, _italic: bool) {
......
......@@ -163,8 +163,7 @@ impl Screen for TextScreen {
if self.console.cursor && self.console.x < self.console.w && self.console.y < self.console.h {
let x = self.console.x;
let y = self.console.y;
let color = self.console.background;
self.display.rect(x * 8, y * 16, 8, 16, color.data);
self.display.invert(x * 8, y * 16, 8, 16);
self.changed.insert(y);
}
......@@ -196,8 +195,7 @@ impl Screen for TextScreen {
if self.console.cursor && self.console.x < self.console.w && self.console.y < self.console.h {
let x = self.console.x;
let y = self.console.y;
let color = self.console.foreground;
self.display.rect(x * 8, y * 16, 8, 16, color.data);
self.display.invert(x * 8, y * 16, 8, 16);
self.changed.insert(y);
}
......
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