/*
* Copyright ( c ) 2015 , 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.Composite;
import java.awt.CompositeContext;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.AffineTransform;
import java.awt.geom.GeneralPath;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.Raster;
import java.awt.image.WritableRaster;
import java.awt.image.RasterFormatException;
/**
* @ test
* @ bug 8048782
* @ summary Test program that demonstrates PiscesRendering bug in
* OpenJDK 1 . 7 . 0 . 60 ( and probably in all other OpenJDK versions , too ) .
*/
public class OpenJDKFillBug
{
/**
* Test program that demonstrates a bug in OpenJDK 1 . 7 . 0 . 60 ( and
* probably in all other OpenJDK versions , too ) . To see the bug , simply run
* the ' main ' program with OpenJDK . The bug makes the ' g2d . fill '
* method fail with the following exception :
*
* This bug is found in OpenJDK but also is present in OracleJDK
* if run with
* - Dsun . java2d . renderer = sun . java2d . pisces . PiscesRenderingEngine
*
* The bug is related to sun . java2d . pisces . PiscesCache constructor
* that accepts ' ( int minx , int miny , int maxx , int maxy ) ' arguments :
* the internal ' bboxX1 ' and ' bboxY1 ' are set to values one greater
* than given maximum X and Y values . Those maximum values are then
* later used in AAShapePipe ' class ' renderTiles ' method , where a
* Y / X loop eventually calls ' GeneralCompositePipe ' class
* ' renderPathTile ' method . In that method , the operation will
* eventually call ' IntegerInterleavedRaster ' class
* ' createWritableChild ' method with arguments :
*
* < UL >
* < LI > x = 800
* < LI > y = 0
* < LI > width = 2 ( this value is too high : should be 1 )
* < LI > height = 32
* < LI > x0 = 0
* < LI > y0 = 0
* < LI > bandList [ ] = null
* < / UL >
*
* This calls for a sub - raster with bounds that fall outside the
* original raster , and therefore the ' createWritableChild ' method
* correctly throws ' RasterFormatException ' .
*
* The bug is closely related to the use of a custom Composite
* implementation , which are quite rare . The application where this
* bug was first detected implements a high - quality PDF rendering
* engine that needs custom Composite operations to properly
* implement PDF advanced color blending and masking operators .
*/
public static void main(String args[])
{
BufferedImage bi = new BufferedImage(801 ,1202 ,
BufferedImage.TYPE_INT_ARGB);
Graphics2D g2d = bi.createGraphics();
GeneralPath gp = new GeneralPath();
AffineTransform m = new AffineTransform(2 .483489907915543 ,
0 .0 ,
0 .0 ,
-2 .4844977263331955 ,
0 .0 ,
1202 .0 );
Composite c = new CustomComposite();
gp.moveTo(-4 .511 , -14 .349 );
gp.lineTo(327 .489 , -14 .349 );
gp.lineTo(327 .489 , 494 .15 );
gp.lineTo(-4 .511 , 494 .15 );
gp.closePath();
g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION,
RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
g2d.setRenderingHint(RenderingHints.KEY_RENDERING,
RenderingHints.VALUE_RENDER_QUALITY);
g2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING,
RenderingHints.VALUE_COLOR_RENDER_QUALITY);
g2d.setRenderingHint(RenderingHints.KEY_TEXT_LCD_CONTRAST,
Integer.valueOf(140 ));
g2d.setRenderingHint(RenderingHints.KEY_DITHERING,
RenderingHints.VALUE_DITHER_ENABLE);
g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
RenderingHints.VALUE_TEXT_ANTIALIAS_DEFAULT);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL,
RenderingHints.VALUE_STROKE_NORMALIZE);
g2d.setPaint(Color.red);
g2d.setComposite(c);
g2d.setTransform(m);
try {
g2d.fill(gp);
} catch (RasterFormatException rfe) {
System.out.println("Test failed" );
throw new RuntimeException("xmax/ymax rounding cause RasterFormatException: " + rfe);
}
g2d.dispose();
System.out.println("Test passed" );
}
// === CustomComposite ===
/**
* Dummy custom Composite implementation .
*/
public static class CustomComposite implements Composite
{
@Override
public CompositeContext createContext(ColorModel srcColorModel,
ColorModel dstColorModel,
RenderingHints hints)
{
return new CustomCompositeContext();
}
// === CustomCompositeContext ===
/**
* Dummy custom CompositeContext implementation .
*/
public static class CustomCompositeContext implements CompositeContext
{
@Override
public void dispose()
{
// NOP
}
@Override
public void compose(Raster src,Raster dstIn,WritableRaster dstOut)
{
// NOP
}
}
}
}
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