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7141914: Draw glyph cause JVM crash

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Reviewed-by: bae, igor
This commit is contained in:
Phil Race 2012-02-03 09:57:45 -08:00
parent d1e88d085e
commit 80e0df803f
4 changed files with 12 additions and 3 deletions
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4
jdk/src/share/classes/sun/font/FileFont.java
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@ -163,7 +163,9 @@ public abstract class FileFont extends PhysicalFont {
} }
} }
} }
scaler.dispose(); if (scaler != null) {
scaler.dispose();
}
scaler = FontScaler.getNullScaler(); scaler = FontScaler.getNullScaler();
} }

5
jdk/src/share/classes/sun/font/StandardGlyphVector.java
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@ -1740,8 +1740,9 @@ public class StandardGlyphVector extends GlyphVector {
tx, tx,
sgv.font.getStyle(), sgv.font.getStyle(),
aa, fm); aa, fm);
// Get the strike via the handle. Shouldn't matter
FontStrike strike = sgv.font2D.getStrike(desc); // !!! getStrike(desc, false) // if we've invalidated the font but its an extra precaution.
FontStrike strike = sgv.font2D.handle.font2D.getStrike(desc); // !!! getStrike(desc, false)
return new GlyphStrike(sgv, strike, dx, dy); return new GlyphStrike(sgv, strike, dx, dy);
} }

3
jdk/src/share/classes/sun/font/SunFontManager.java
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@ -2619,6 +2619,9 @@ public abstract class SunFontManager implements FontSupport, FontManagerForSGE {
physicalFonts.remove(oldFont.fullName); physicalFonts.remove(oldFont.fullName);
fullNameToFont.remove(oldFont.fullName.toLowerCase(Locale.ENGLISH)); fullNameToFont.remove(oldFont.fullName.toLowerCase(Locale.ENGLISH));
FontFamily.remove(oldFont); FontFamily.remove(oldFont);
if (oldFont instanceof FileFont) {
((FileFont)oldFont).deregisterFontAndClearStrikeCache();
}
if (localeFullNamesToFont != null) { if (localeFullNamesToFont != null) {
Map.Entry[] mapEntries = Map.Entry[] mapEntries =

3
jdk/src/share/classes/sun/font/TrueTypeFont.java
View File

@ -1037,6 +1037,9 @@ public class TrueTypeFont extends FileFont {
if (head_Table != null && head_Table.capacity() >= 18) { if (head_Table != null && head_Table.capacity() >= 18) {
ShortBuffer sb = head_Table.asShortBuffer(); ShortBuffer sb = head_Table.asShortBuffer();
upem = sb.get(9) & 0xffff; upem = sb.get(9) & 0xffff;
if (upem < 16 || upem > 16384) {
upem = 2048;
}
} }
ByteBuffer os2_Table = getTableBuffer(os_2Tag); ByteBuffer os2_Table = getTableBuffer(os_2Tag);