58 lines
1.6 KiB
Rust
58 lines
1.6 KiB
Rust
use sdl2::pixels::{Color, PixelFormatEnum};
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use sdl2::rect::Rect;
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use sdl2::render::{TextureCreator, WindowCanvas};
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use sdl2::video::{Window, WindowContext};
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use rustboyadvance_ng::core::gpu::{DISPLAY_HEIGHT, DISPLAY_WIDTH};
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use rustboyadvance_ng::VideoInterface;
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pub const SCREEN_WIDTH: u32 = DISPLAY_WIDTH as u32;
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pub const SCREEN_HEIGHT: u32 = DISPLAY_HEIGHT as u32;
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pub const SCALE: u32 = 3; // TODO control via CLI & support window resize
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pub struct Sdl2Video {
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tc: TextureCreator<WindowContext>,
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canvas: WindowCanvas,
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}
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impl Sdl2Video {
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pub fn set_window_title(&mut self, title: &str) {
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self.canvas.window_mut().set_title(&title).unwrap();
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}
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}
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impl VideoInterface for Sdl2Video {
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fn render(&mut self, buffer: &[u32]) {
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let mut texture = self
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.tc
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.create_texture_streaming(PixelFormatEnum::BGRA32, SCREEN_WIDTH, SCREEN_HEIGHT)
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.unwrap();
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texture
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.update(
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None,
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unsafe { std::mem::transmute::<&[u32], &[u8]>(buffer) },
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(SCREEN_WIDTH as usize) * 4,
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)
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.unwrap();
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self.canvas
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.copy(
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&texture,
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None,
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Some(Rect::new(0, 0, SCREEN_WIDTH * SCALE, SCREEN_HEIGHT * SCALE)),
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)
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.unwrap();
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self.canvas.present();
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}
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}
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pub fn create_video_interface(window: Window) -> Sdl2Video {
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let mut canvas = window.into_canvas().accelerated().build().unwrap();
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canvas.set_draw_color(Color::RGB(0, 0, 0));
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canvas.clear();
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let tc = canvas.texture_creator();
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Sdl2Video {
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tc: tc,
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canvas: canvas,
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}
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}
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