47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
const Cogl = imports.gi.Cogl;
|
|
const GLib = imports.gi.GLib;
|
|
const Lang = imports.lang;
|
|
|
|
let renderer = new Cogl.Renderer();
|
|
let display = new Cogl.Display(renderer, new Cogl.OnscreenTemplate(new Cogl.SwapChain()));
|
|
let ctx = new Cogl.Context(display);
|
|
|
|
// Should be able to replace the 3 previous lines with :
|
|
// let ctx = new Cogl.Context(null);
|
|
// But crashing for some reason.
|
|
|
|
// GLib mainloop integration
|
|
let gsource = Cogl.glib_renderer_source_new(renderer, 0);
|
|
let loop = GLib.MainLoop.new(null, false);
|
|
gsource.attach(loop.get_context());
|
|
|
|
// Onscreen creation
|
|
let onscreen = new Cogl.Onscreen(ctx, 800, 600);
|
|
onscreen.show();
|
|
|
|
// Drawing pipeline
|
|
let crate = Cogl.Texture2D.new_from_file(ctx, 'crate.jpg');
|
|
let pipeline = new Cogl.Pipeline(ctx);
|
|
pipeline.set_layer_texture(0, crate);
|
|
let clearColor = new Cogl.Color();
|
|
clearColor.init_from_4f(0, 0, 0, 1.0);
|
|
|
|
// Redraw callback
|
|
let closure = onscreen.add_dirty_callback(Lang.bind(this, function() {
|
|
onscreen.clear(Cogl.BufferBit.COLOR, clearColor);
|
|
onscreen.draw_rectangle(pipeline, -1, -1, 1, 1);
|
|
onscreen.swap_buffers();
|
|
return true;
|
|
}), null);
|
|
|
|
// Quit after 5s
|
|
let tm = GLib.timeout_source_new(5000);
|
|
tm.set_callback(Lang.bind(this, function() {
|
|
loop.quit();
|
|
return false;
|
|
}), null);
|
|
tm.attach(loop.get_context());
|
|
|
|
// Run!
|
|
loop.run();
|