8215105: java/awt/Robot/HiDPIScreenCapture/ScreenCaptureTest.java: Wrong Pixel Color
Reviewed-by: prr
--- a/src/java.desktop/macosx/native/libawt_lwawt/awt/CRobot.m Wed Mar 27 13:14:55 2019 +0300
+++ b/src/java.desktop/macosx/native/libawt_lwawt/awt/CRobot.m Fri Mar 29 16:09:47 2019 -0700
@@ -300,7 +300,7 @@
// create a graphics context around the Java int array
CGColorSpaceRef picColorSpace = CGColorSpaceCreateWithName(
- kCGColorSpaceGenericRGB);
+ kCGColorSpaceSRGB);
CGContextRef jPicContextRef = CGBitmapContextCreate(
jPixelData,
picWidth, picHeight,
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/awt/Robot/CheckCommonColors/CheckCommonColors.java Fri Mar 29 16:09:47 2019 -0700
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.awt.Color;
+import java.awt.Frame;
+import java.awt.Point;
+import java.awt.Robot;
+import java.util.List;
+
+/**
+ * @test
+ * @key headful
+ * @bug 8215105
+ * @summary tests that Robot can capture the common colors without artifacts
+ */
+public final class CheckCommonColors {
+
+ private static final Frame frame = new Frame();
+ private static Robot robot;
+
+ public static void main(final String[] args) throws Exception {
+ robot = new Robot();
+ try {
+ test();
+ } finally {
+ frame.dispose();
+ }
+ }
+
+ private static void test() {
+ frame.setSize(400, 400);
+ frame.setLocationRelativeTo(null);
+ frame.setUndecorated(true);
+ for (final Color color : List.of(Color.WHITE, Color.LIGHT_GRAY,
+ Color.GRAY, Color.DARK_GRAY,
+ Color.BLACK, Color.RED, Color.PINK,
+ Color.ORANGE, Color.YELLOW,
+ Color.GREEN, Color.MAGENTA, Color.CYAN,
+ Color.BLUE)) {
+ frame.dispose();
+ frame.setBackground(color);
+ frame.setVisible(true);
+ checkPixels(color);
+ }
+ }
+
+ private static void checkPixels(final Color color) {
+ int attempt = 0;
+ while (true) {
+ Point p = frame.getLocationOnScreen();
+ Color pixel = robot.getPixelColor(p.x + frame.getWidth() / 2,
+ p.y + frame.getHeight() / 2);
+ if (color.equals(pixel)) {
+ return;
+ }
+ if (attempt > 10) {
+ System.err.println("Expected: " + color);
+ System.err.println("Actual: " + pixel);
+ throw new RuntimeException("Too many attempts: " + attempt);
+ }
+ // skip Robot.waitForIdle to speedup the common case, but also take
+ // care about slow systems
+ robot.delay((int) Math.pow(2.2, attempt++));
+ }
+ }
+}