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8341535: sun/awt/font/TestDevTransform.java fails with RuntimeException: Different rendering

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Reviewed-by: mbaesken
This commit is contained in:
Phil Race 2024-10-09 18:17:53 +00:00
parent 3180aaa370
commit 593c27e697
1 changed files with 25 additions and 6 deletions
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31
test/jdk/sun/awt/font/TestDevTransform.java
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@ -23,7 +23,7 @@
/* /*
* @test * @test
* @bug 4269775 * @bug 4269775 8341535
* @summary Check that different text rendering APIs agree * @summary Check that different text rendering APIs agree
*/ */
@ -46,6 +46,8 @@ import java.awt.font.GlyphVector;
import java.awt.font.TextLayout; import java.awt.font.TextLayout;
import java.awt.geom.AffineTransform; import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage; import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import java.io.File;
import java.util.HashMap; import java.util.HashMap;
public class TestDevTransform { public class TestDevTransform {
@ -105,17 +107,34 @@ public class TestDevTransform {
g2d.setFont(font); g2d.setFont(font);
} }
static void compare(BufferedImage bi1, BufferedImage bi2) { static void compare(BufferedImage bi1, String name1, BufferedImage bi2, String name2) throws Exception {
int nonWhite1 = 0;
int nonWhite2 = 0;
int differences = 0;
int whitePixel = Color.white.getRGB();
for (int x = 0; x < bi1.getWidth(); x++) { for (int x = 0; x < bi1.getWidth(); x++) {
for (int y = 0; y < bi1.getHeight(); y++) { for (int y = 0; y < bi1.getHeight(); y++) {
int pix1 = bi1.getRGB(x, y);
int pix2 = bi2.getRGB(x, y);
if (pix1 != whitePixel) { nonWhite1++; }
if (pix2 != whitePixel) { nonWhite2++; }
if (bi1.getRGB(x, y) != bi2.getRGB(x, y)) { if (bi1.getRGB(x, y) != bi2.getRGB(x, y)) {
throw new RuntimeException("Different rendering"); differences++;
} }
} }
} }
int nonWhite = (nonWhite1 < nonWhite2) ? nonWhite1 : nonWhite2;
if (differences > 0 && ((nonWhite / differences) < 20)) {
ImageIO.write(bi1, "png", new File(name1 + ".png"));
ImageIO.write(bi2, "png", new File(name2 + ".png"));
System.err.println("nonWhite image 1 = " + nonWhite1);
System.err.println("nonWhite image 2 = " + nonWhite2);
System.err.println("Number of non-white differing pixels=" + differences);
throw new RuntimeException("Different rendering: " + differences + " pixels differ.");
}
} }
public static void main(String args[]) { public static void main(String args[]) throws Exception {
BufferedImage tl_Image = new BufferedImage(W, H, BufferedImage.TYPE_INT_RGB); BufferedImage tl_Image = new BufferedImage(W, H, BufferedImage.TYPE_INT_RGB);
{ {
@ -149,7 +168,7 @@ public class TestDevTransform {
draw(gv_g2d, gv, 10f, 36f, .33f); draw(gv_g2d, gv, 10f, 36f, .33f);
} }
compare(tl_Image, st_Image); compare(tl_Image, "textlayout", st_Image, "string");
compare(gv_Image, st_Image); compare(gv_Image, "glyphvector", st_Image, "string");
} }
} }