Rename integration examples

examples/integration_gl/src/scene.rs

@@ -1,93 +0,0 @@
-use glow::*;
-use iced_glow::Color;
-
-pub struct Scene {
-    program: glow::Program,
-    vertex_array: glow::VertexArray,
-}
-
-impl Scene {
-    pub fn new(gl: &glow::Context, shader_version: &str) -> Self {
-        unsafe {
-            let vertex_array = gl
-                .create_vertex_array()
-                .expect("Cannot create vertex array");
-            gl.bind_vertex_array(Some(vertex_array));
-
-            let program = gl.create_program().expect("Cannot create program");
-
-            let (vertex_shader_source, fragment_shader_source) = (
-                r#"const vec2 verts[3] = vec2[3](
-                    vec2(0.5f, 1.0f),
-                    vec2(0.0f, 0.0f),
-                    vec2(1.0f, 0.0f)
-                );
-                out vec2 vert;
-                void main() {
-                    vert = verts[gl_VertexID];
-                    gl_Position = vec4(vert - 0.5, 0.0, 1.0);
-                }"#,
-                r#"precision highp float;
-                in vec2 vert;
-                out vec4 color;
-                void main() {
-                    color = vec4(vert, 0.5, 1.0);
-                }"#,
-            );
-
-            let shader_sources = [
-                (glow::VERTEX_SHADER, vertex_shader_source),
-                (glow::FRAGMENT_SHADER, fragment_shader_source),
-            ];
-
-            let mut shaders = Vec::with_capacity(shader_sources.len());
-
-            for (shader_type, shader_source) in shader_sources.iter() {
-                let shader = gl
-                    .create_shader(*shader_type)
-                    .expect("Cannot create shader");
-                gl.shader_source(shader, &format!("{}\n{}", shader_version, shader_source));
-                gl.compile_shader(shader);
-                if !gl.get_shader_compile_status(shader) {
-                    panic!(gl.get_shader_info_log(shader));
-                }
-                gl.attach_shader(program, shader);
-                shaders.push(shader);
-            }
-
-            gl.link_program(program);
-            if !gl.get_program_link_status(program) {
-                panic!(gl.get_program_info_log(program));
-            }
-
-            for shader in shaders {
-                gl.detach_shader(program, shader);
-                gl.delete_shader(shader);
-            }
-
-            gl.use_program(Some(program));
-            Self { program, vertex_array }
-        }
-    }
-
-    pub fn clear(&self, gl: &glow::Context, background_color: Color) {
-        let [r, g, b, a] = background_color.into_linear();
-        unsafe {
-            gl.clear_color(r, g, b, a);
-            gl.clear(glow::COLOR_BUFFER_BIT);
-        }
-    }
-
-    pub fn draw(&self, gl: &glow::Context) {
-        unsafe {
-            gl.draw_arrays(glow::TRIANGLES, 0, 3);
-        }
-    }
-
-    pub fn cleanup(&self, gl: &glow::Context) {
-        unsafe {
-            gl.delete_program(self.program);
-            gl.delete_vertex_array(self.vertex_array);
-        }
-    }
-}