--- a/src/java.desktop/share/native/libfontmanager/freetypeScaler.c Fri Jun 15 23:59:56 2018 +0530
+++ b/src/java.desktop/share/native/libfontmanager/freetypeScaler.c Fri Jun 15 13:05:34 2018 -0700
@@ -364,6 +364,19 @@
context->doBold = (boldness != 1.0);
context->doItalize = (italic != 0);
+ /* freetype is very keen to use embedded bitmaps, even if it knows
+ * there is a rotation or you asked for antialiasing.
+ * In the rendering path we will check useSBits and disable
+ * bitmaps unless it is set. And here we set it only if none
+ * of the conditions invalidate using it.
+ * Note that we allow embedded bitmaps for the LCD case.
+ */
+ if ((aa != TEXT_AA_ON) && (fm != TEXT_FM_ON) &&
+ !context->doBold && !context->doItalize &&
+ (context->transform.yx == 0) && (context->transform.xy == 0))
+ {
+ context->useSbits = 1;
+ }
return ptr_to_jlong(context);
}
@@ -685,9 +698,8 @@
return ptr_to_jlong(getNullGlyphImage());
}
- /* if algorithmic styling is required then we do not request bitmap */
- if (context->doBold || context->doItalize) {
- renderFlags = FT_LOAD_DEFAULT;
+ if (!context->useSbits) {
+ renderFlags |= FT_LOAD_NO_BITMAP;
}
/* NB: in case of non identity transform
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/awt/FontClass/GlyphRotationTest.java Fri Jun 15 13:05:34 2018 -0700
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2018, 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 8204929
+ * @summary test rotation of font with embedded bitmaps
+ * @run main GlyphRotationTest
+ */
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.geom.AffineTransform;
+import java.awt.image.BufferedImage;
+import javax.imageio.ImageIO;
+
+public class GlyphRotationTest {
+
+ public static final String fontName = "MS UI Gothic";
+ public static Font font;
+ public static final int SZ = 50;
+
+ public static void main(String[] args) {
+ font = new Font(fontName, Font.PLAIN, 15);
+ if (!font.getFamily(java.util.Locale.ENGLISH).equals(fontName)) {
+ return;
+ }
+ BufferedImage bi = new BufferedImage(SZ,SZ,BufferedImage.TYPE_INT_RGB);
+ Graphics2D g2d = bi.createGraphics();
+ g2d.setColor(Color.white);
+ g2d.fillRect(0, 0, SZ, SZ);
+ g2d.setColor(Color.black);
+ g2d.setFont(font);
+ g2d.drawString("1", SZ/2, SZ/2);
+ int pixCnt1 = countPixels(bi);
+ AffineTransform at = AffineTransform.getRotateInstance(Math.PI/2);
+ font = font.deriveFont(Font.PLAIN, at);
+ g2d.setFont(font);
+ g2d.drawString("1", SZ/2, SZ/2);
+ int pixCnt2 = countPixels(bi);
+ if (args.length > 0) {
+ try {
+ ImageIO.write(bi, "png", new java.io.File("im.png"));
+ } catch (Exception e) {}
+ }
+ if (pixCnt1 == pixCnt2) {
+ String msg = "cnt 1 = " + pixCnt1 + " cnt 2 = " + pixCnt2;
+ throw new RuntimeException(msg);
+ }
+ }
+
+ static int countPixels(BufferedImage bi) {
+ int cnt = 0;
+ int w = bi.getWidth(null);
+ int h = bi.getHeight(null);
+ for (int i=0; i<w; i++) {
+ for (int j=0; j<w; j++) {
+ int rgb = bi.getRGB(i, j) & 0xFFFFFF;
+ if (rgb == 0) {
+ cnt++;
+ }
+ }
+ }
+ return cnt;
+ }
+}