Add Sdl canvas

Cargo.toml

@@ -4,8 +4,7 @@ version = "0.0.1"
 authors = ["arnaucube <root@arnaucube.com>"]
 edition = "2018"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
 clap = "2.33.3"
+sdl2 = "0.34.3"
 chip8 = {path="./chip8"}

src/main.rs

@@ -1,3 +1,8 @@
+extern crate sdl2;
+
+use sdl2::pixels::Color;
+use sdl2::render::Canvas;
+
 use clap::{App, Arg};
 
 use chip8::Chip8;
@@ -6,6 +11,7 @@ struct SdlEmulator {
     w: usize,
     h: usize,
     zoom: usize,
+    canvas: Canvas<sdl2::video::Window>,
     chip8: Chip8,
 }
 
@@ -13,10 +19,22 @@ impl SdlEmulator {
     fn new(w: usize, h: usize, zoom: usize) -> SdlEmulator {
         let mut c = Chip8::new();
 
+        let sdl_context = sdl2::init().unwrap();
+        let video_subsystem = sdl_context.video().unwrap();
+
+        let window = video_subsystem
+            .window("rust-sdl2 demo", 800, 600)
+            .position_centered()
+            .build()
+            .unwrap();
+
+        let mut canvas = window.into_canvas().build().unwrap();
+
         SdlEmulator {
             w,
             h,
             zoom,
+            canvas,
             chip8: c,
         }
     }