DrawImageBilinear.java revision 14851:980da45565c8 
1/*
2 * Copyright (c) 2007, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23/*
24 * @test
25 * @key headful
26 * @bug 5009033 6603000 6666362
27 * @summary Verifies that images transformed with bilinear filtering do not
28 * leave artifacts at the edges.
29 * @run main/othervm DrawImageBilinear
30 * @run main/othervm -Dsun.java2d.opengl=True DrawImageBilinear
31 * @author campbelc
32 */
33
34import java.awt.Canvas;
35import java.awt.Color;
36import java.awt.Component;
37import java.awt.Dimension;
38import java.awt.Frame;
39import java.awt.Graphics;
40import java.awt.Graphics2D;
41import java.awt.GraphicsConfiguration;
42import java.awt.Point;
43import java.awt.Rectangle;
44import java.awt.RenderingHints;
45import java.awt.Robot;
46import java.awt.Toolkit;
47import java.awt.image.BufferedImage;
48import java.awt.image.IndexColorModel;
49import java.awt.image.VolatileImage;
50
51public class DrawImageBilinear extends Canvas {
52
53    private static final int SIZE = 5;
54
55    private static boolean done;
56    private BufferedImage bimg1, bimg2;
57    private VolatileImage vimg;
58    private static volatile BufferedImage capture;
59    private static void doCapture(Component test) {
60        try {
61            Thread.sleep(2000);
62        } catch (InterruptedException ex) {}
63        // Grab the screen region
64        try {
65            Robot robot = new Robot();
66            Point pt1 = test.getLocationOnScreen();
67            Rectangle rect =
68                new Rectangle(pt1.x, pt1.y, test.getWidth(), test.getHeight());
69            capture = robot.createScreenCapture(rect);
70        } catch (Exception e) {
71            e.printStackTrace();
72        }
73    }
74
75    private void renderPattern(Graphics g) {
76        g.setColor(Color.red);
77        g.fillRect(0, 0, SIZE, SIZE);
78        //g.setColor(Color.green);
79        //g.drawRect(0, 0, SIZE-1, SIZE-1);
80        g.dispose();
81    }
82
83    public void paint(Graphics g) {
84        Graphics2D g2d = (Graphics2D)g;
85
86        if (bimg1 == null) {
87            bimg1 = (BufferedImage)createImage(SIZE, SIZE);
88            bimg1.setAccelerationPriority(0.0f);
89            renderPattern(bimg1.createGraphics());
90
91            bimg2 = (BufferedImage)createImage(SIZE, SIZE);
92            renderPattern(bimg2.createGraphics());
93
94            vimg = createVolatileImage(SIZE, SIZE);
95            vimg.validate(getGraphicsConfiguration());
96            renderPattern(vimg.createGraphics());
97        }
98
99        do {
100            g2d.setColor(Color.white);
101            g2d.fillRect(0, 0, getWidth(), getHeight());
102
103            g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
104                                 RenderingHints.VALUE_INTERPOLATION_BILINEAR);
105
106            // first time will be a sw->surface blit
107            g2d.drawImage(bimg1, 10, 10, 40, 40, null);
108
109            // second time will be a texture->surface blit
110            g2d.drawImage(bimg2, 80, 10, 40, 40, null);
111            if (!skipOglTextureTest) {
112                g2d.drawImage(bimg2, 80, 10, 40, 40, null);
113            }
114
115            // third time will be a pbuffer->surface blit
116            if (vimg.validate(getGraphicsConfiguration()) != VolatileImage.IMAGE_OK) {
117                renderPattern(vimg.createGraphics());
118            }
119            g2d.drawImage(vimg, 150, 10, 40, 40, null);
120
121            Toolkit.getDefaultToolkit().sync();
122        } while (vimg.contentsLost());
123
124        synchronized (this) {
125            if (!done) {
126                doCapture(this);
127                done = true;
128            }
129            notifyAll();
130        }
131    }
132
133    public Dimension getPreferredSize() {
134        return new Dimension(200, 100);
135    }
136
137    private static void testRegion(BufferedImage bi,
138                                   Rectangle affectedRegion)
139    {
140        int x1 = affectedRegion.x;
141        int y1 = affectedRegion.y;
142        int x2 = x1 + affectedRegion.width;
143        int y2 = y1 + affectedRegion.height;
144
145        for (int y = y1; y < y2; y++) {
146            for (int x = x1; x < x2; x++) {
147                int actual = bi.getRGB(x, y);
148                if ((actual != 0xfffe0000) && (actual != 0xffff0000)) {
149                    throw new RuntimeException("Test failed at x="+x+" y="+y+
150                                               " (expected=0xffff0000"+
151                                               " actual=0x"+
152                                               Integer.toHexString(actual) +
153                                               ")");
154                }
155            }
156        }
157    }
158
159    private static boolean skipOglTextureTest = false;
160
161    public static void main(String[] args) {
162        boolean show = false;
163        for (String arg : args) {
164            if ("-show".equals(arg)) {
165                show = true;
166            }
167        }
168
169        String arch = System.getProperty("os.arch");
170        boolean isOglEnabled = Boolean.getBoolean("sun.java2d.opengl");
171        skipOglTextureTest = isOglEnabled && ("sparc".equals(arch));
172        System.out.println("Skip OpenGL texture test: " + skipOglTextureTest);
173
174        DrawImageBilinear test = new DrawImageBilinear();
175        Frame frame = new Frame();
176        frame.add(test);
177        frame.pack();
178        frame.setVisible(true);
179
180        // Wait until the component's been painted
181        synchronized (test) {
182            while (!done) {
183                try {
184                    test.wait();
185                } catch (InterruptedException e) {
186                    throw new RuntimeException("Failed: Interrupted");
187                }
188            }
189        }
190
191        GraphicsConfiguration gc = frame.getGraphicsConfiguration();
192        if (gc.getColorModel() instanceof IndexColorModel) {
193            System.out.println("IndexColorModel detected: " +
194                               "test considered PASSED");
195            frame.dispose();
196            return;
197        }
198
199        if (!show) {
200            frame.dispose();
201        }
202        if (capture == null) {
203            throw new RuntimeException("Failed: capture is null");
204        }
205
206        // Test background color
207        int pixel = capture.getRGB(5, 5);
208        if (pixel != 0xffffffff) {
209            throw new RuntimeException("Failed: Incorrect color for " +
210                                       "background");
211        }
212
213        // Test pixels
214        testRegion(capture, new Rectangle(10, 10, 40, 40));
215        testRegion(capture, new Rectangle(80, 10, 40, 40));
216        testRegion(capture, new Rectangle(150, 10, 40, 40));
217    }
218}
219