1 /*
2 * Copyright (c) 2007, 2010, 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 * @bug 5009033 6603000 6666362
26 * @summary Verifies that images transformed with bilinear filtering do not
27 * leave artifacts at the edges.
28 * @run main/othervm DrawImageBilinear
29 * @run main/othervm -Dsun.java2d.opengl=True DrawImageBilinear
30 * @author campbelc
31 */
32
33 import java.awt.Canvas;
34 import java.awt.Color;
35 import java.awt.Component;
36 import java.awt.Dimension;
37 import java.awt.Frame;
38 import java.awt.Graphics;
39 import java.awt.Graphics2D;
40 import java.awt.GraphicsConfiguration;
41 import java.awt.Point;
42 import java.awt.Rectangle;
43 import java.awt.RenderingHints;
44 import java.awt.Robot;
45 import java.awt.Toolkit;
46 import java.awt.image.BufferedImage;
47 import java.awt.image.IndexColorModel;
48 import java.awt.image.VolatileImage;
49
50 public class DrawImageBilinear extends Canvas {
51
52 private static final int SIZE = 5;
53
54 private static boolean done;
55 private BufferedImage bimg1, bimg2;
56 private VolatileImage vimg;
57 private static volatile BufferedImage capture;
58 private static void doCapture(Component test) {
59 try {
60 Thread.sleep(2000);
61 } catch (InterruptedException ex) {}
62 // Grab the screen region
63 try {
64 Robot robot = new Robot();
65 Point pt1 = test.getLocationOnScreen();
66 Rectangle rect =
67 new Rectangle(pt1.x, pt1.y, test.getWidth(), test.getHeight());
68 capture = robot.createScreenCapture(rect);
69 } catch (Exception e) {
70 e.printStackTrace();
71 }
72 }
73
74 private void renderPattern(Graphics g) {
75 g.setColor(Color.red);
76 g.fillRect(0, 0, SIZE, SIZE);
77 //g.setColor(Color.green);
78 //g.drawRect(0, 0, SIZE-1, SIZE-1);
79 g.dispose();
80 }
81
82 public void paint(Graphics g) {
83 Graphics2D g2d = (Graphics2D)g;
84
85 if (bimg1 == null) {
86 bimg1 = (BufferedImage)createImage(SIZE, SIZE);
87 bimg1.setAccelerationPriority(0.0f);
88 renderPattern(bimg1.createGraphics());
89
90 bimg2 = (BufferedImage)createImage(SIZE, SIZE);
91 renderPattern(bimg2.createGraphics());
92
93 vimg = createVolatileImage(SIZE, SIZE);
94 vimg.validate(getGraphicsConfiguration());
95 renderPattern(vimg.createGraphics());
96 }
97
98 do {
99 g2d.setColor(Color.white);
100 g2d.fillRect(0, 0, getWidth(), getHeight());
101
102 g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
103 RenderingHints.VALUE_INTERPOLATION_BILINEAR);
104
105 // first time will be a sw->surface blit
106 g2d.drawImage(bimg1, 10, 10, 40, 40, null);
107
108 // second time will be a texture->surface blit
109 g2d.drawImage(bimg2, 80, 10, 40, 40, null);
110 if (!skipOglTextureTest) {
111 g2d.drawImage(bimg2, 80, 10, 40, 40, null);
112 }
113
114 // third time will be a pbuffer->surface blit
115 if (vimg.validate(getGraphicsConfiguration()) != VolatileImage.IMAGE_OK) {
116 renderPattern(vimg.createGraphics());
117 }
118 g2d.drawImage(vimg, 150, 10, 40, 40, null);
119
120 Toolkit.getDefaultToolkit().sync();
121 } while (vimg.contentsLost());
122
123 synchronized (this) {
124 if (!done) {
125 doCapture(this);
126 done = true;
127 }
128 notifyAll();
129 }
130 }
131
132 public Dimension getPreferredSize() {
133 return new Dimension(200, 100);
134 }
135
136 private static void testRegion(BufferedImage bi,
137 Rectangle affectedRegion)
138 {
139 int x1 = affectedRegion.x;
140 int y1 = affectedRegion.y;
141 int x2 = x1 + affectedRegion.width;
142 int y2 = y1 + affectedRegion.height;
143
144 for (int y = y1; y < y2; y++) {
145 for (int x = x1; x < x2; x++) {
146 int actual = bi.getRGB(x, y);
147 if ((actual != 0xfffe0000) && (actual != 0xffff0000)) {
148 throw new RuntimeException("Test failed at x="+x+" y="+y+
149 " (expected=0xffff0000"+
150 " actual=0x"+
151 Integer.toHexString(actual) +
152 ")");
153 }
154 }
155 }
156 }
157
158 private static boolean skipOglTextureTest = false;
159
160 public static void main(String[] args) {
161 boolean show = false;
162 for (String arg : args) {
163 if ("-show".equals(arg)) {
164 show = true;
165 }
166 }
167
168 String arch = System.getProperty("os.arch");
169 boolean isOglEnabled = Boolean.getBoolean("sun.java2d.opengl");
170 skipOglTextureTest = isOglEnabled && ("sparc".equals(arch));
171 System.out.println("Skip OpenGL texture test: " + skipOglTextureTest);
172
173 DrawImageBilinear test = new DrawImageBilinear();
174 Frame frame = new Frame();
175 frame.add(test);
176 frame.pack();
177 frame.setVisible(true);
178
179 // Wait until the component's been painted
180 synchronized (test) {
181 while (!done) {
182 try {
183 test.wait();
184 } catch (InterruptedException e) {
185 throw new RuntimeException("Failed: Interrupted");
186 }
187 }
188 }
189
190 GraphicsConfiguration gc = frame.getGraphicsConfiguration();
191 if (gc.getColorModel() instanceof IndexColorModel) {
192 System.out.println("IndexColorModel detected: " +
193 "test considered PASSED");
194 frame.dispose();
195 return;
196 }
197
198 if (!show) {
199 frame.dispose();
200 }
201 if (capture == null) {
202 throw new RuntimeException("Failed: capture is null");
203 }
204
205 // Test background color
206 int pixel = capture.getRGB(5, 5);
207 if (pixel != 0xffffffff) {
208 throw new RuntimeException("Failed: Incorrect color for " +
209 "background");
210 }
211
212 // Test pixels
213 testRegion(capture, new Rectangle(10, 10, 40, 40));
214 testRegion(capture, new Rectangle(80, 10, 40, 40));
215 testRegion(capture, new Rectangle(150, 10, 40, 40));
216 }
217 }