74 lines
2.2 KiB
Rust
74 lines
2.2 KiB
Rust
extern crate sdl2;
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use sdl2::event::Event;
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use sdl2::keyboard::Keycode;
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use sdl2::pixels::Color;
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use sdl2::pixels::PixelFormatEnum;
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use sdl2::surface::Surface;
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use std::time::Duration;
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fn put_pixel(data: &mut [u8], x: usize, y: usize, color: Color) {
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data[y * 3 * 800 + x * 3] = color.r;
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data[y * 3 * 800 + x * 3 + 1] = color.g;
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data[y * 3 * 800 + x * 3 + 2] = color.b;
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}
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fn main() {
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let sdl_context = sdl2::init().unwrap();
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let video_subsystem = sdl_context.video().unwrap();
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let window = video_subsystem
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.window("rust-sdl2 demo", 800, 600)
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.position_centered()
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.opengl()
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.build()
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.unwrap();
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// let surface = Surface::new(512, 512, PixelFormatEnum::RGB24).unwrap();
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let mut data = Box::new([255u8; 1_440_000]);
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// println!("{:?}", data);
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let mut canvas = window.into_canvas().build().unwrap();
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// let mut canvas = surface.into_canvas().unwrap();
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//canvas.set_draw_color(Color::RGB(0, 255, 255));
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// let surface = Surface::from_data(&mut data, 800, 600, 3, PixelFormatEnum::RGB24).unwrap();
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let texture_creator = canvas.texture_creator();
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let mut event_pump = sdl_context.event_pump().unwrap();
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let mut i = 0;
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'running: loop {
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put_pixel(
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&mut *data,
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i,
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i,
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Color {
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r: 0,
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g: 0,
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b: 0,
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a: 0,
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},
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);
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if i < 599 {
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i += 1;
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}
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// canvas.set_draw_color(Color::RGB(i, 64, 255 - i));
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let surface =
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Surface::from_data(&mut *data, 800, 600, 2400, PixelFormatEnum::RGB24).unwrap();
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let texture = texture_creator
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.create_texture_from_surface(surface)
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.unwrap();
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canvas.copy(&texture, None, None).unwrap();
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canvas.present();
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for event in event_pump.poll_iter() {
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match event {
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Event::Quit { .. }
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| Event::KeyDown {
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keycode: Some(Keycode::Escape),
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..
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} => break 'running,
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_ => {}
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}
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}
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// The rest of the game loop goes here...
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// ::std::thread::sleep(Duration::new(0, 1_000_000_000u32 / 60));
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}
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}
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