Render GUI only when window is visible

src/app/RackWidget.cpp

@@ -311,9 +311,9 @@ void RackWidget::draw(NVGcontext *vg) {
 	// Rails
 	// TODO Put this in a framebuffer cache and tile
 	const float railHeight = 15;
-	nvgFillColor(vg, nvgRGBf(0.8, 0.8, 0.8));
+	nvgFillColor(vg, nvgRGBf(0.85, 0.85, 0.85));
 	nvgStrokeWidth(vg, 1.0);
-	nvgStrokeColor(vg, nvgRGBf(0.6, 0.6, 0.6));
+	nvgStrokeColor(vg, nvgRGBf(0.7, 0.7, 0.7));
 	float holeRadius = 3.5;
 	for (float railY = 0; railY < box.size.y; railY += rackGridSize.y) {
 		// Top rail

src/app/WireWidget.cpp

@@ -160,6 +160,7 @@ void WireWidget::draw(NVGcontext *vg) {
 }
 
 void WireWidget::drawPlugs(NVGcontext *vg) {
+	// TODO Figure out a way to draw plugs first and wires last, and cut the plug portion of the wire off.
 }
 
 

src/engine.cpp

@@ -98,9 +98,10 @@ static void engineRun() {
 			}
 		}
 		auto end = std::chrono::high_resolution_clock::now();
-		auto duration = std::chrono::nanoseconds((long) (0.5 * 1e9 * stepSize / gSampleRate)) - (end - start);
+		auto duration = std::chrono::nanoseconds((long) (0.10 * 1e9 * stepSize / gSampleRate)) - (end - start);
 		// Avoid pegging the CPU at 100% when there are no "blocking" modules like AudioInterface, but still step audio at a reasonable rate
-		// std::this_thread::sleep_for(duration);
+		// if (duration > 0)
+		// 	std::this_thread::sleep_for(duration);
 	}
 }
 

src/gui.cpp

@@ -271,7 +271,11 @@ void guiRun() {
 			cursorPosCallback(window, xpos, ypos);
 		}
 		gScene->step();
-		renderGui();
+
+		bool visible = glfwGetWindowAttrib(window, GLFW_VISIBLE) && !glfwGetWindowAttrib(window, GLFW_ICONIFIED);
+		if (visible) {
+			renderGui();
+		}
 
 		double currTime = glfwGetTime();
 		// printf("%lf fps\n", 1.0/(currTime - lastTime));