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