[Bug 1769132] Re: ubuntu18.04's libfreetype6 2.8.1 has a bug of rendering bitmap font

[zhangboyang.id@gmail.com]

This is the upstream issue:

https://savannah.nongnu.org/bugs/?52613

I reported this bug about 1 year ago. The bug is introduced in

[base] Don't zero out allocated memory twice (#51816).
https://savannah.nongnu.org/bugs/?51816
http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=bd28952e23bcd268a623ea5202e1cde4a92defe4

And fixed in:

Fix access to uninitalized memory (#52613).
http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=e1090c608b72dcfc1899c33974acd056e120aa53

[base] Fix bitmap emboldening.
http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=3b88576ba0807f5203310c22d5dbfff803c4abd9


To fix this problem, there are two ways:
(1) revert changes bd28952e
(2) merge e1090c60 and 3b88576b to current code base

I suggest (1) because it's simpler.

** Bug watch added: Non-GNU Savannah Bug Tracker #52613
   http://savannah.nongnu.org/bugs/?52613

** Bug watch added: Non-GNU Savannah Bug Tracker #51816
   http://savannah.nongnu.org/bugs/?51816

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https://bugs.launchpad.net/bugs/1769132

Title:
  ubuntu18.04's libfreetype6 2.8.1 has a bug of rendering bitmap font

Status in freetype package in Ubuntu:
  Confirmed

Bug description:
  ubuntu18.04's libfreetype6 version 2.8.1 has a bug of rendering bitmap font like ZFull gb, should be upgrade to version 2.9.
  I checked libfreetype 2.9 fix this bug. I post this bug in:

  https://savannah.nongnu.org/bugs/?53798

  there are some picture I grab for this bug:

  http://forum.ubuntu.org.cn/viewtopic.php?f=186&t=487304

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