src/main.rs

@@ -0,0 +1,58 @@
+use glium::winit::event::{Event, WindowEvent};
+use glium::Surface;
+
+#[derive(Copy, Clone)]
+struct Vertex {
+    position: [f32; 2],
+}
+implement_vertex!(Vertex, position);
+
+#[macro_use]
+extern crate glium;
+
+fn main() {
+    let event_loop = glium::winit::event_loop::EventLoopBuilder::new().build().expect("event loop building");
+    let (_window, display) = glium::backend::glutin::SimpleWindowBuilder::new().build(&event_loop);
+
+    let vertex1 = Vertex { position: [ -0.5, -0.5 ] };
+    let vertex2 = Vertex { position: [ 0.0, 0.5 ] };
+    let vertex3 = Vertex { position: [ 0.5, -0.25 ] };
+    let shape = vec![vertex1, vertex2, vertex3];
+
+    let vertex_buffer = glium::VertexBuffer::new(&display, &shape).unwrap();
+    let indices = glium::index::NoIndices(glium::index::PrimitiveType::TrianglesList);
+
+    let vertex_shader_src = r#"
+        in vec2 position;
+
+        void main() {
+            gl_Position = vec4(position, 0.0, 1.0);
+        }
+    "#;
+
+    let fragment_shader_src = r#"
+        out vec4 color;
+
+        void main() {
+            color = vec4(1.0, 0.0, 0.0, 1.0);
+        }
+    "#;
+
+    let program = glium::Program::from_source(&display, vertex_shader_src, fragment_shader_src, None).unwrap();
+
+    let mut frame = display.draw();
+    frame.clear_color(0.0, 0.0, 0.0, 1.0);
+    frame.draw(&vertex_buffer, &indices, &program, &glium::uniforms::EmptyUniforms,
+        &Default::default()).unwrap();
+    frame.finish().unwrap();
+
+    let _ = event_loop.run(move |event, window_target| {
+        match event {
+            Event::WindowEvent { event, .. } => match event {
+                WindowEvent::CloseRequested => window_target.exit(),
+                _ => (),
+            },
+            _ => (),
+        };
+    });
+}