Exemplo n.º 1
0
func windowDrawLoop(cb Callbacks, w *C.ANativeWindow, queue *C.AInputQueue) {
	C.createEGLWindow(w)

	// TODO: is the library or the app responsible for clearing the buffers?
	gl.ClearColor(0, 0, 0, 1)
	gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
	C.eglSwapBuffers(C.display, C.surface)

	if errv := gl.GetError(); errv != gl.NO_ERROR {
		log.Printf("GL initialization error: %s", errv)
	}

	geom.Width = geom.Pt(float32(C.windowWidth) / geom.PixelsPerPt)
	geom.Height = geom.Pt(float32(C.windowHeight) / geom.PixelsPerPt)

	for {
		processEvents(cb, queue)
		select {
		case <-windowDestroyed:
			return
		default:
			if cb.Draw != nil {
				cb.Draw()
			}
			C.eglSwapBuffers(C.display, C.surface)
		}
	}
}
Exemplo n.º 2
0
func checkGLError() {
	if glErr := gl.GetError(); glErr != gl.NO_ERROR {
		log.Fatalf("gl. error: %v", glErr)
	}
}