Java example source code file (DrawBufImgOp.java)
The DrawBufImgOp.java Java example source code
/*
* Copyright (c) 2007, 2008, 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.
*/
/*
* @test
* @bug 6514990
* @summary Verifies that calling
* Graphics2D.drawImage(BufferedImage, BufferedImageOp, x, y) to an
* OpenGL-accelerated destination produces the same results when performed
* in software via BufferedImageOp.filter().
* @run main/othervm -Dsun.java2d.opengl=True DrawBufImgOp -ignore
* @author campbelc
*/
import java.awt.*;
import java.awt.image.*;
import java.io.File;
import javax.imageio.ImageIO;
/**
* REMIND: This testcase was originally intended to automatically compare
* the results of the software BufferedImageOp implementations against
* the OGL-accelerated codepaths. However, there are just too many open
* bugs in the mediaLib-based codepaths (see below), which means that
* creating the reference image may cause crashes or exceptions,
* and even if we work around those cases using the "-ignore" flag,
* the visual results of the reference image are often buggy as well
* (so the comparison will fail even though the OGL results are correct).
* Therefore, for now we will run the testcase with the "-ignore" flag
* but without the "-compare" flag, so at least it will be checking for
* any exceptions/crashes in the OGL code. When we fix all of the
* outstanding bugs with the software codepaths, we can remove the
* "-ignore" flag and maybe even restore the "-compare" flag. In the
* meantime, it stil functions well as a manual testcase (with either
* the "-show" or "-dump" options).
*/
public class DrawBufImgOp extends Canvas {
private static final int TESTW = 600;
private static final int TESTH = 500;
private static boolean done;
/*
* If true, skips tests that are known to trigger bugs (which in
* turn may cause crashes, exceptions, or other artifacts).
*/
private static boolean ignore;
// Test both pow2 and non-pow2 sized images
private static final int[] srcSizes = { 32, 17 };
private static final int[] srcTypes = {
BufferedImage.TYPE_INT_RGB,
BufferedImage.TYPE_INT_ARGB,
BufferedImage.TYPE_INT_ARGB_PRE,
BufferedImage.TYPE_INT_BGR,
BufferedImage.TYPE_3BYTE_BGR,
BufferedImage.TYPE_4BYTE_ABGR,
BufferedImage.TYPE_USHORT_565_RGB,
BufferedImage.TYPE_BYTE_GRAY,
BufferedImage.TYPE_USHORT_GRAY,
};
private static final RescaleOp
rescale1band, rescale3band, rescale4band;
private static final LookupOp
lookup1bandbyte, lookup3bandbyte, lookup4bandbyte;
private static final LookupOp
lookup1bandshort, lookup3bandshort, lookup4bandshort;
private static final ConvolveOp
convolve3x3zero, convolve5x5zero, convolve7x7zero;
private static final ConvolveOp
convolve3x3noop, convolve5x5noop, convolve7x7noop;
static {
rescale1band = new RescaleOp(0.5f, 10.0f, null);
rescale3band = new RescaleOp(
new float[] { 0.6f, 0.4f, 0.6f },
new float[] { 10.0f, -3.0f, 5.0f },
null);
rescale4band = new RescaleOp(
new float[] { 0.6f, 0.4f, 0.6f, 0.9f },
new float[] { -1.0f, 5.0f, 3.0f, 1.0f },
null);
// REMIND: we should probably test non-zero offsets, but that
// would require massaging the source image data to avoid going
// outside the lookup table array bounds
int offset = 0;
{
byte invert[] = new byte[256];
byte halved[] = new byte[256];
for (int j = 0; j < 256 ; j++) {
invert[j] = (byte) (255-j);
halved[j] = (byte) (j / 2);
}
ByteLookupTable lut1 = new ByteLookupTable(offset, invert);
lookup1bandbyte = new LookupOp(lut1, null);
ByteLookupTable lut3 =
new ByteLookupTable(offset,
new byte[][] {invert, halved, invert});
lookup3bandbyte = new LookupOp(lut3, null);
ByteLookupTable lut4 =
new ByteLookupTable(offset,
new byte[][] {invert, halved, invert, halved});
lookup4bandbyte = new LookupOp(lut4, null);
}
{
short invert[] = new short[256];
short halved[] = new short[256];
for (int j = 0; j < 256 ; j++) {
invert[j] = (short) ((255-j) * 255);
halved[j] = (short) ((j / 2) * 255);
}
ShortLookupTable lut1 = new ShortLookupTable(offset, invert);
lookup1bandshort = new LookupOp(lut1, null);
ShortLookupTable lut3 =
new ShortLookupTable(offset,
new short[][] {invert, halved, invert});
lookup3bandshort = new LookupOp(lut3, null);
ShortLookupTable lut4 =
new ShortLookupTable(offset,
new short[][] {invert, halved, invert, halved});
lookup4bandshort = new LookupOp(lut4, null);
}
// 3x3 blur
float[] data3 = {
0.1f, 0.1f, 0.1f,
0.1f, 0.2f, 0.1f,
0.1f, 0.1f, 0.1f,
};
Kernel k3 = new Kernel(3, 3, data3);
// 5x5 edge
float[] data5 = {
-1.0f, -1.0f, -1.0f, -1.0f, -1.0f,
-1.0f, -1.0f, -1.0f, -1.0f, -1.0f,
-1.0f, -1.0f, 24.0f, -1.0f, -1.0f,
-1.0f, -1.0f, -1.0f, -1.0f, -1.0f,
-1.0f, -1.0f, -1.0f, -1.0f, -1.0f,
};
Kernel k5 = new Kernel(5, 5, data5);
// 7x7 blur
float[] data7 = {
0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f,
0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f,
0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f,
0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f,
0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f,
0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f,
0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f, 0.02f,
};
Kernel k7 = new Kernel(7, 7, data7);
convolve3x3zero = new ConvolveOp(k3, ConvolveOp.EDGE_ZERO_FILL, null);
convolve5x5zero = new ConvolveOp(k5, ConvolveOp.EDGE_ZERO_FILL, null);
convolve7x7zero = new ConvolveOp(k7, ConvolveOp.EDGE_ZERO_FILL, null);
convolve3x3noop = new ConvolveOp(k3, ConvolveOp.EDGE_NO_OP, null);
convolve5x5noop = new ConvolveOp(k5, ConvolveOp.EDGE_NO_OP, null);
convolve7x7noop = new ConvolveOp(k7, ConvolveOp.EDGE_NO_OP, null);
}
public void paint(Graphics g) {
synchronized (this) {
if (done) {
return;
}
}
VolatileImage vimg = createVolatileImage(TESTW, TESTH);
vimg.validate(getGraphicsConfiguration());
Graphics2D g2d = vimg.createGraphics();
renderTest(g2d);
g2d.dispose();
g.drawImage(vimg, 0, 0, null);
Toolkit.getDefaultToolkit().sync();
synchronized (this) {
done = true;
notifyAll();
}
}
/*
* foreach source image size (once with pow2, once with non-pow2)
*
* foreach BufferedImage type
*
* RescaleOp (1 band)
* RescaleOp (3 bands, if src has 3 bands)
* RescaleOp (4 bands, if src has 4 bands)
*
* foreach LookupTable type (once with ByteLUT, once with ShortLUT)
* LookupOp (1 band)
* LookupOp (3 bands, if src has 3 bands)
* LookupOp (4 bands, if src has 4 bands)
*
* foreach edge condition (once with ZERO_FILL, once with EDGE_NO_OP)
* ConvolveOp (3x3)
* ConvolveOp (5x5)
* ConvolveOp (7x7)
*/
private void renderTest(Graphics2D g2d) {
g2d.setColor(Color.white);
g2d.fillRect(0, 0, TESTW, TESTH);
int yorig = 2;
int xinc = 34;
int yinc = srcSizes[0] + srcSizes[1] + 2 + 2;
for (int srcType : srcTypes) {
int y = yorig;
for (int srcSize : srcSizes) {
int x = 2;
System.out.printf("type=%d size=%d\n", srcType, srcSize);
BufferedImage srcImg = makeSourceImage(srcSize, srcType);
ColorModel srcCM = srcImg.getColorModel();
// RescaleOp
g2d.drawImage(srcImg, rescale1band, x, y);
x += xinc;
// REMIND: 3-band RescaleOp.filter() throws IAE for images
// that contain an alpha channel (bug to be filed)
if (srcCM.getNumColorComponents() == 3 &&
!(ignore && srcCM.hasAlpha()))
{
g2d.drawImage(srcImg, rescale3band, x, y);
}
x += xinc;
if (srcCM.getNumComponents() == 4) {
g2d.drawImage(srcImg, rescale4band, x, y);
}
x += xinc;
// LookupOp
// REMIND: Our LUTs are only 256 elements long, so won't
// currently work with USHORT_GRAY data
if (srcType != BufferedImage.TYPE_USHORT_GRAY) {
g2d.drawImage(srcImg, lookup1bandbyte, x, y);
x += xinc;
if (srcCM.getNumColorComponents() == 3) {
g2d.drawImage(srcImg, lookup3bandbyte, x, y);
}
x += xinc;
if (srcCM.getNumComponents() == 4) {
g2d.drawImage(srcImg, lookup4bandbyte, x, y);
}
x += xinc;
// REMIND: LookupOp.createCompatibleDestImage() throws
// IAE for 3BYTE_BGR/4BYTE_ABGR (bug to be filed)
if (!(ignore &&
(srcType == BufferedImage.TYPE_3BYTE_BGR ||
srcType == BufferedImage.TYPE_4BYTE_ABGR)))
{
g2d.drawImage(srcImg, lookup1bandshort, x, y);
x += xinc;
// REMIND: 3-band LookupOp.filter() throws IAE for
// images that contain an alpha channel
// (bug to be filed)
if (srcCM.getNumColorComponents() == 3 &&
!(ignore && srcCM.hasAlpha()))
{
g2d.drawImage(srcImg, lookup3bandshort, x, y);
}
x += xinc;
if (srcCM.getNumComponents() == 4) {
g2d.drawImage(srcImg, lookup4bandshort, x, y);
}
x += xinc;
} else {
x += 3*xinc;
}
} else {
x += 6*xinc;
}
// ConvolveOp
// REMIND: ConvolveOp.filter() throws ImagingOpException
// for 3BYTE_BGR (see 4957775)
if (srcType != BufferedImage.TYPE_3BYTE_BGR) {
g2d.drawImage(srcImg, convolve3x3zero, x, y);
x += xinc;
g2d.drawImage(srcImg, convolve5x5zero, x, y);
x += xinc;
g2d.drawImage(srcImg, convolve7x7zero, x, y);
x += xinc;
g2d.drawImage(srcImg, convolve3x3noop, x, y);
x += xinc;
g2d.drawImage(srcImg, convolve5x5noop, x, y);
x += xinc;
g2d.drawImage(srcImg, convolve7x7noop, x, y);
x += xinc;
} else {
x += 6*xinc;
}
y += srcSize + 2;
}
yorig += yinc;
}
}
private BufferedImage makeSourceImage(int size, int type) {
int s2 = size/2;
BufferedImage img = new BufferedImage(size, size, type);
Graphics2D g2d = img.createGraphics();
g2d.setComposite(AlphaComposite.Src);
g2d.setColor(Color.orange);
g2d.fillRect(0, 0, size, size);
g2d.setColor(Color.red);
g2d.fillRect(0, 0, s2, s2);
g2d.setColor(Color.green);
g2d.fillRect(s2, 0, s2, s2);
g2d.setColor(Color.blue);
g2d.fillRect(0, s2, s2, s2);
g2d.setColor(new Color(255, 255, 0, 128));
g2d.fillRect(s2, s2, s2, s2);
g2d.setColor(Color.pink);
g2d.fillOval(s2-3, s2-3, 6, 6);
g2d.dispose();
return img;
}
public BufferedImage makeReferenceImage() {
BufferedImage img = new BufferedImage(TESTW, TESTH,
BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = img.createGraphics();
renderTest(g2d);
g2d.dispose();
return img;
}
public Dimension getPreferredSize() {
return new Dimension(TESTW, TESTH);
}
private static void compareImages(BufferedImage refImg,
BufferedImage testImg,
int tolerance)
{
int x1 = 0;
int y1 = 0;
int x2 = refImg.getWidth();
int y2 = refImg.getHeight();
for (int y = y1; y < y2; y++) {
for (int x = x1; x < x2; x++) {
Color expected = new Color(refImg.getRGB(x, y));
Color actual = new Color(testImg.getRGB(x, y));
if (!isSameColor(expected, actual, tolerance)) {
throw new RuntimeException("Test failed at x="+x+" y="+y+
" (expected="+expected+
" actual="+actual+
")");
}
}
}
}
private static boolean isSameColor(Color c1, Color c2, int e) {
int r1 = c1.getRed();
int g1 = c1.getGreen();
int b1 = c1.getBlue();
int r2 = c2.getRed();
int g2 = c2.getGreen();
int b2 = c2.getBlue();
int rmin = Math.max(r2-e, 0);
int gmin = Math.max(g2-e, 0);
int bmin = Math.max(b2-e, 0);
int rmax = Math.min(r2+e, 255);
int gmax = Math.min(g2+e, 255);
int bmax = Math.min(b2+e, 255);
if (r1 >= rmin && r1 <= rmax &&
g1 >= gmin && g1 <= gmax &&
b1 >= bmin && b1 <= bmax)
{
return true;
}
return false;
}
public static void main(String[] args) throws Exception {
boolean show = false;
boolean dump = false;
boolean compare = false;
for (String arg : args) {
if (arg.equals("-show")) {
show = true;
} else if (arg.equals("-dump")) {
dump = true;
} else if (arg.equals("-compare")) {
compare = true;
} else if (arg.equals("-ignore")) {
ignore = true;
}
}
DrawBufImgOp test = new DrawBufImgOp();
Frame frame = new Frame();
frame.add(test);
frame.pack();
frame.setVisible(true);
// Wait until the component's been painted
synchronized (test) {
while (!done) {
try {
test.wait();
} catch (InterruptedException e) {
throw new RuntimeException("Failed: Interrupted");
}
}
}
GraphicsConfiguration gc = frame.getGraphicsConfiguration();
if (gc.getColorModel() instanceof IndexColorModel) {
System.out.println("IndexColorModel detected: " +
"test considered PASSED");
frame.dispose();
return;
}
// Grab the screen region
BufferedImage capture = null;
try {
Robot robot = new Robot();
Point pt1 = test.getLocationOnScreen();
Rectangle rect = new Rectangle(pt1.x, pt1.y, TESTW, TESTH);
capture = robot.createScreenCapture(rect);
} catch (Exception e) {
throw new RuntimeException("Problems creating Robot");
} finally {
if (!show) {
frame.dispose();
}
}
// Compare the images (allow for +/- 1 bit differences in color comps)
if (dump || compare) {
BufferedImage ref = test.makeReferenceImage();
if (dump) {
ImageIO.write(ref, "png",
new File("DrawBufImgOp.ref.png"));
ImageIO.write(capture, "png",
new File("DrawBufImgOp.cap.png"));
}
if (compare) {
test.compareImages(ref, capture, 1);
}
}
}
}
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