diff options
Diffstat (limited to 'src/bin.rs')
| -rw-r--r-- | src/bin.rs | 21 |
1 files changed, 13 insertions, 8 deletions
@@ -184,17 +184,21 @@ fn get_rgb(color: u8) -> (u8, u8, u8) { impl<'a> ppu::Screen for SDLWindow<'a> { fn put(&mut self, x: u8, y: u8, color: u8) { let (r, g, b) = get_rgb(color); + let mut pattern = [0; 3 * PIXEL_SIZE as usize]; let mut base = ((y as u32 * PIXEL_SIZE) as usize * FB_PITCH) + (x as u32 * 3 * PIXEL_SIZE) as usize; - for _ in 0..PIXEL_SIZE { - let slice = &mut self.frame_buffer[base..base + 3 * PIXEL_SIZE as usize]; - let mut j = 0; + { + let mut i = 0; for _ in 0..PIXEL_SIZE { - slice[j] = r; - slice[j + 1] = g; - slice[j + 2] = b; - j += 3; + pattern[i] = r; + pattern[i + 1] = g; + pattern[i + 2] = b; + i += 3; } + } + for _ in 0..PIXEL_SIZE { + self.frame_buffer[base..base + 3 * PIXEL_SIZE as usize] + .copy_from_slice(&pattern[..]); base += FB_PITCH; } } @@ -202,7 +206,8 @@ impl<'a> ppu::Screen for SDLWindow<'a> { fn render(&mut self) { self.texture.update(None, &self.frame_buffer, FB_PITCH).unwrap(); self.canvas.clear(); - self.canvas.copy(&self.texture, None, Some(Rect::new(0, 0, WIN_WIDTH, WIN_HEIGHT))).unwrap(); + self.canvas.copy(&self.texture, None, + Some(Rect::new(0, 0, WIN_WIDTH, WIN_HEIGHT))).unwrap(); self.canvas.present(); if self.poll() {std::process::exit(0);} let e = self.timer.elapsed(); |