JBR-1624 Fonts rendering is broken in the 2019.2 EAP (Fira Code)

Screen rendering tests in progress

jb/project/java-gradle/.idea/.gitignore

@@ -0,0 +1,2 @@
+# Default ignored files
+/workspace.xml

jb/project/java-gradle/.idea/uiDesigner.xml

@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
+      </item>
+      <item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.png" removable="false" auto-create-binding="false" can-attach-label="true">
+        <default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
+        <initial-values>
+          <property name="text" value="Button" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="RadioButton" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="CheckBox" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="Label" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+          <preferred-size width="-1" height="20" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+      </item>
+    </group>
+  </component>
+</project>

jb/project/java-gradle/.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../../.." vcs="Git" />
+  </component>
+</project>

jb/project/java-gradle/build.gradle

@@ -82,6 +82,7 @@ test {
 
 //  Enable Java2D logging (https://confluence.jetbrains.com/display/JRE/Java2D+Rendering+Logging)
 //  systemProperty "sun.java2d.trace", "log"
+//  systemProperty "sun.java2d.debugfonts", "warn"
 //  systemProperty "sun.java2d.trace", "log,pimpl"
 
     outputs.upToDateWhen { false }

test/jdk/jbu/performance/rendering/RenderPerfTest.java

@@ -24,42 +24,26 @@
 package performance.rendering;
 
 import org.junit.Test;
+import util.Renderer;
 
 import javax.imageio.ImageIO;
-import javax.swing.*;
 import java.awt.*;
-import java.awt.event.WindowAdapter;
-import java.awt.event.WindowEvent;
 import java.awt.geom.AffineTransform;
 import java.awt.geom.Point2D;
 import java.awt.geom.QuadCurve2D;
 import java.awt.image.BufferedImage;
 import java.io.File;
 import java.io.IOException;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.atomic.AtomicBoolean;
 
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 
 public class RenderPerfTest {
     private final static int N = 1000;
-    private final static float WIDTH = 800;
-    private final static float HEIGHT = 800;
     private final static float R = 25;
-    private final static int BW = 50;
-    private final static int BH = 50;
     private final static int COUNT = 300;
-    private final static int DELAY = 10;
-    private final static int RESOLUTION = 5;
-    private final static int COLOR_TOLERANCE = 10;
 
 
-    interface Renderable {
-        void render(Graphics2D g2d);
-        void update();
-    }
-
     static class Particles {
         private float[] bx;
         private float[] by;
@@ -384,113 +368,7 @@ public class RenderPerfTest {
         }
     }
 
-    class PerfMeter {
-
-        private int frame = 0;
-
-        private JPanel panel;
-
-        private long time;
-        private double execTime = 0;
-        private Color expColor = Color.RED;
-        AtomicBoolean waiting = new AtomicBoolean(false);
-
-        double exec(final Renderable renderable) throws Exception {
-            final CountDownLatch latch = new CountDownLatch(COUNT);
-            final CountDownLatch latchFrame = new CountDownLatch(1);
-
-            final JFrame f = new JFrame();
-            f.addWindowListener(new WindowAdapter() {
-                @Override
-                public void windowClosed(WindowEvent e) {
-                    latchFrame.countDown();
-                }
-            });
-
-            SwingUtilities.invokeAndWait(new Runnable() {
-                @Override
-                public void run() {
-
-                    panel = new JPanel()
-                    {
-                        @Override
-                        protected void paintComponent(Graphics g) {
-
-                            super.paintComponent(g);
-                            time = System.nanoTime();
-                            Graphics2D g2d = (Graphics2D) g;
-                            renderable.render(g2d);
-                            g2d.setColor(expColor);
-                            g.fillRect(0, 0, BW, BH);
-                        }
-                    };
-
-                    panel.setPreferredSize(new Dimension((int)(WIDTH + BW), (int)(HEIGHT + BH)));
-                    panel.setBackground(Color.BLACK);
-                    f.add(panel);
-                    f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
-                    f.pack();
-                    f.setVisible(true);
-                }
-            });
-            Robot robot = new Robot();
-
-            Timer timer = new Timer(DELAY, e -> {
-
-                if (waiting.compareAndSet(false, true)) {
-                    Color c = robot.getPixelColor(
-                            panel.getTopLevelAncestor().getX() + panel.getTopLevelAncestor().getInsets().left + BW / 2,
-                            panel.getTopLevelAncestor().getY() + panel.getTopLevelAncestor().getInsets().top + BW / 2);
-                    if (isAlmostEqual(c, Color.BLUE)) {
-                        expColor = Color.RED;
-                    } else {
-                        expColor = Color.BLUE;
-                    }
-                    renderable.update();
-                    panel.getParent().repaint();
-
-                } else {
-                    while (!isAlmostEqual(
-                            robot.getPixelColor(
-                                    panel.getTopLevelAncestor().getX() + panel.getTopLevelAncestor().getInsets().left + BW/2,
-                                    panel.getTopLevelAncestor().getY() + panel.getTopLevelAncestor().getInsets().top + BH/2),
-                            expColor))
-                    {
-                        try {
-                            Thread.sleep(RESOLUTION);
-                        } catch (InterruptedException ex) {
-                            ex.printStackTrace();
-                        }
-                    }
-                    time = System.nanoTime() - time;
-                    execTime += time;
-                    frame++;
-                    waiting.set(false);
-                }
-
-                latch.countDown();
-            });
-            timer.start();
-            latch.await();
-            SwingUtilities.invokeAndWait(() -> {
-                timer.stop();
-                f.setVisible(false);
-                f.dispose();
-            });
-
-            latchFrame.await();
-            return 1e9/(execTime / frame);
-        }
-
-        private boolean isAlmostEqual(Color c1, Color c2) {
-            return Math.abs(c1.getRed() - c2.getRed()) < COLOR_TOLERANCE ||
-                    Math.abs(c1.getGreen() - c2.getGreen()) < COLOR_TOLERANCE ||
-                    Math.abs(c1.getBlue() - c2.getBlue()) < COLOR_TOLERANCE;
-
-        }
-    }
-
-    private static final Particles balls = new Particles(N, R, BW, BH, WIDTH, HEIGHT);
+    private static final Particles balls = new Particles(N, R, 0, 0, Renderer.WIDTH, Renderer.HEIGHT);
     private static final ParticleRenderer flatRenderer = new FlatParticleRenderer(N, R);
     private static final ParticleRenderer flatOvalRotRenderer = new FlatOvalRotParticleRenderer(N, R);
     private static final ParticleRenderer flatBoxRenderer = new FlatBoxParticleRenderer(N, R);
@@ -520,7 +398,7 @@ public class RenderPerfTest {
     @Test
     public void testFlatBubbles() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.Renderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, flatRenderer);
@@ -530,6 +408,11 @@ public class RenderPerfTest {
             public void update() {
                 balls.update();
             }
+
+            @Override
+            public void screenShot(BufferedImage result) {
+                System.err.println();
+            }
         });
 
         report("FlatOval", fps);
@@ -538,7 +421,7 @@ public class RenderPerfTest {
     @Test
     public void testFlatBoxBubbles() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, flatBoxRenderer);
@@ -556,7 +439,7 @@ public class RenderPerfTest {
     @Test
     public void testImgBubbles() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, imgRenderer);
@@ -574,7 +457,7 @@ public class RenderPerfTest {
     @Test
     public void testFlatBoxRotBubbles() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, flatBoxRotRenderer);
@@ -592,7 +475,7 @@ public class RenderPerfTest {
     @Test
     public void testFlatOvalRotBubbles() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, flatOvalRotRenderer);
@@ -610,7 +493,7 @@ public class RenderPerfTest {
     @Test
     public void testLinGradOvalRotBubbles() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, linGradOvalRotRenderer);
@@ -629,7 +512,7 @@ public class RenderPerfTest {
     @Test
     public void testWiredBubbles() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, wiredRenderer);
@@ -647,7 +530,7 @@ public class RenderPerfTest {
     @Test
     public void testWiredBoxBubbles() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, wiredBoxRenderer);
@@ -665,7 +548,7 @@ public class RenderPerfTest {
     @Test
     public void testLines() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, segRenderer);
@@ -683,7 +566,7 @@ public class RenderPerfTest {
     @Test
     public void testFlatQuad() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, flatQuadRenderer);
@@ -701,7 +584,7 @@ public class RenderPerfTest {
     @Test
     public void testWiredQuad() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, wiredQuadRenderer);
@@ -719,7 +602,7 @@ public class RenderPerfTest {
     @Test
     public void testTextBubblesNoAA() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, textRendererNoAA);
@@ -737,7 +620,7 @@ public class RenderPerfTest {
     @Test
     public void testTextBubblesLCD() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, textRendererLCD);
@@ -755,7 +638,7 @@ public class RenderPerfTest {
     @Test
     public void testTextBubblesGray() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, textRendererGray);
@@ -773,7 +656,7 @@ public class RenderPerfTest {
     @Test
     public void testWhiteTextBubblesNoAA() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, whiteTextRendererNoAA);
@@ -791,7 +674,7 @@ public class RenderPerfTest {
     @Test
     public void testWhiteTextBubblesLCD() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new util.Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, whiteTextRendererLCD);
@@ -809,7 +692,7 @@ public class RenderPerfTest {
     @Test
     public void testWhiteTextBubblesGray() throws Exception {
 
-        double fps = (new PerfMeter()).exec(new Renderable() {
+        double fps = (new Renderer(COUNT)).exec(new Renderer.DefaultRenderable() {
             @Override
             public void render(Graphics2D g2d) {
                 balls.render(g2d, whiteTextRendererGray);

test/jdk/jbu/quality/text/FiraCodeScrTest.java

@@ -0,0 +1,37 @@
+package quality.text;
+
+import org.junit.Assert;
+import org.junit.Test;
+import quality.util.RenderUtil;
+import util.Renderer;
+
+import java.awt.*;
+import java.awt.image.BufferedImage;
+
+public class FiraCodeScrTest {
+
+    @Test
+    public void testRenderText() throws Exception {
+        String [] testResult = new String[] {null};
+
+        (new util.Renderer(2, 300, 30, true)).exec(new Renderer.DefaultRenderable() {
+            @Override
+            public void render(Graphics2D g2d) {
+                g2d.setColor(Color.WHITE);
+                Font f = new Font("Fira Code", Font.PLAIN, 12);
+                g2d.setFont(f);
+                g2d.drawString("The quick brown fox jumps over the lazy dog", 0, 15);
+            }
+            @Override
+            public void screenShot(BufferedImage result) {
+                try {
+                    RenderUtil.checkImage(result, "text", "firacode.png");
+                } catch (Exception e) {
+                    testResult[0] = e.getMessage();
+                }
+            }
+        });
+
+        if (testResult[0] != null) Assert.fail(testResult[0]);
+    }
+}

test/jdk/jbu/util/Renderer.java

@@ -0,0 +1,170 @@
+package util;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.awt.image.BufferedImage;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+public class Renderer {
+
+    public final static int WIDTH = 800;
+    public final static int HEIGHT = 800;
+    public final static int BW = 50;
+    public final static int BH = 50;
+    private final static int RESOLUTION = 5;
+    private final static int COLOR_TOLERANCE = 10;
+    private final static int DELAY = 10;
+    private int frame = 0;
+    private final int count;
+    private final int width;
+    private final int height;
+    private final boolean capture;
+    private JPanel panel;
+
+    private long time;
+    private double execTime = 0;
+    private Color expColor = Color.RED;
+    AtomicBoolean waiting = new AtomicBoolean(false);
+
+
+    public Renderer(int count) {
+        this(count, WIDTH, HEIGHT, false);
+    }
+
+
+    public Renderer(int count, int width, int height, boolean capture) {
+        this.count = count;
+        this.width = width;
+        this.height = height;
+        this.capture = capture;
+    }
+
+    public double exec(final Renderable renderable) throws Exception {
+        final CountDownLatch latch = new CountDownLatch(count);
+        final CountDownLatch latchFrame = new CountDownLatch(1);
+
+        final JFrame f = new JFrame();
+        f.addWindowListener(new WindowAdapter() {
+            @Override
+            public void windowClosed(WindowEvent e) {
+                latchFrame.countDown();
+            }
+        });
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+            @Override
+            public void run() {
+
+                panel = new JPanel()
+                {
+                    @Override
+                    protected void paintComponent(Graphics g) {
+
+                        super.paintComponent(g);
+                        time = System.nanoTime();
+                        Graphics2D g2d = (Graphics2D) g;
+                        g2d.translate(BW, BH);
+                        renderable.render(g2d);
+                        g2d.translate(-BW, -BH);
+                        g2d.setColor(expColor);
+                        g.fillRect(0, 0, BW, BH);
+                    }
+                };
+
+                panel.setPreferredSize(new Dimension(width + BW, height + BH));
+                panel.setBackground(Color.BLACK);
+                f.add(panel);
+                f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
+                f.pack();
+                f.setVisible(true);
+            }
+        });
+        Robot robot = new Robot();
+
+        Timer timer = new Timer(DELAY, e -> {
+
+            if (waiting.compareAndSet(false, true)) {
+                Color c = robot.getPixelColor(
+                        panel.getTopLevelAncestor().getX() + panel.getTopLevelAncestor().getInsets().left + BW / 2,
+                        panel.getTopLevelAncestor().getY() + panel.getTopLevelAncestor().getInsets().top + BH / 2);
+                if (isAlmostEqual(c, Color.BLUE)) {
+                    expColor = Color.RED;
+                } else {
+                    expColor = Color.BLUE;
+                }
+                if (capture) {
+                    renderable.screenShot(robot.createScreenCapture(
+                            new Rectangle(
+                                    panel.getTopLevelAncestor().getX() + panel.getTopLevelAncestor().getInsets().left + BW,
+                                    panel.getTopLevelAncestor().getY() + panel.getTopLevelAncestor().getInsets().top + BH,
+                                    width, height)));
+                }
+                renderable.update();
+                panel.getParent().repaint();
+
+            } else {
+                while (!isAlmostEqual(
+                        robot.getPixelColor(
+                                panel.getTopLevelAncestor().getX() + panel.getTopLevelAncestor().getInsets().left + BW/2,
+                                panel.getTopLevelAncestor().getY() + panel.getTopLevelAncestor().getInsets().top + BH/2),
+                        expColor))
+                {
+                    try {
+                        Thread.sleep(RESOLUTION);
+                    } catch (InterruptedException ex) {
+                        ex.printStackTrace();
+                    }
+                }
+                time = System.nanoTime() - time;
+                execTime += time;
+                frame++;
+                waiting.set(false);
+            }
+
+            latch.countDown();
+        });
+        timer.start();
+        latch.await();
+        SwingUtilities.invokeAndWait(() -> {
+            timer.stop();
+            f.setVisible(false);
+            f.dispose();
+        });
+
+        latchFrame.await();
+        return 1e9/(execTime / frame);
+    }
+
+    private boolean isAlmostEqual(Color c1, Color c2) {
+        return Math.abs(c1.getRed() - c2.getRed()) < COLOR_TOLERANCE ||
+                Math.abs(c1.getGreen() - c2.getGreen()) < COLOR_TOLERANCE ||
+                Math.abs(c1.getBlue() - c2.getBlue()) < COLOR_TOLERANCE;
+    }
+
+    public interface Renderable {
+        void render(Graphics2D g2d);
+        void update();
+        void screenShot(BufferedImage result);
+    }
+
+    public static class DefaultRenderable implements Renderable {
+
+        @Override
+        public void render(Graphics2D g2d) {
+
+        }
+
+        @Override
+        public void update() {
+
+        }
+
+        @Override
+        public void screenShot(BufferedImage result) {
+
+        }
+    }
+}