Package: python-pyglet
Version: 1.1.4.dfsg-3
Severity: important
Tags: upstream patch
Dear Maintainer,
pyglet in stretch causes a segmentation fault when using the font
routines. This can be trivially reproduced:
import pyglet
pyglet.font.load("", 30)
Segmentation fault
This problem does not occur in jessie.
I have tracked this down to the way that ctypes is being used to
call the fontconfig library. Please find attached a patch which
fixes this.
This is probably important enough to consider a stable update once the
fix is in unstable, as any application which calls pyglet.font.load in
stretch will segmentation fault (e.g. psychopy as soon as a TextStim
object is created).
Thanks,
Mark
--- a/pyglet/font/freetype.py
+++ b/pyglet/font/freetype.py
@@ -52,6 +52,7 @@
FcResult = c_int
+fontconfig.FcPatternCreate.restype = c_void_p
fontconfig.FcPatternBuild.restype = c_void_p
fontconfig.FcFontMatch.restype = c_void_p
fontconfig.FcFreeTypeCharIndex.restype = c_uint
@@ -320,6 +321,7 @@
name = name.encode('utf8')
pattern = fontconfig.FcPatternCreate()
+ pattern = c_void_p(pattern)
fontconfig.FcPatternAddDouble(pattern, FC_SIZE, c_double(size))
fontconfig.FcPatternAddInteger(pattern, FC_WEIGHT, bold)
fontconfig.FcPatternAddInteger(pattern, FC_SLANT, italic)
@@ -330,6 +332,7 @@
# Look for a font that matches pattern
result = FcResult()
match = fontconfig.FcFontMatch(0, pattern, byref(result))
+ match = c_void_p(match)
fontconfig.FcPatternDestroy(pattern)
return match
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