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Calculate using usize. Didn't do the math, but this seems a safer option.

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Stephen Marz 2020-05-23 08:48:29 -04:00
parent 1ee1250b9d
commit af3527b081
1 changed files with 2 additions and 2 deletions
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4
risc_v/src/gpu.rs
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@ -280,9 +280,9 @@ static mut GPU_DEVICES: [Option<Device>; 8] = [
pub fn test_draw(buffer: *mut Pixel, r: Rect, color: Pixel) { pub fn test_draw(buffer: *mut Pixel, r: Rect, color: Pixel) {
for row in r.y..(r.y+r.height) { for row in r.y..(r.y+r.height) {
for col in r.x..(r.x+r.width) { for col in r.x..(r.x+r.width) {
let byte = row * 640 + col; let byte = row as usize * 640 + col as usize;
unsafe { unsafe {
buffer.add(byte as usize).write(color); buffer.add(byte).write(color);
} }
} }
} }