freetype渲染有点问题，truetype内置的bitmap字体数字和字母渲染不正常，中文正常。矢量字体全部正常

[Engrtao]

PS C:\Users\danieltao\Desktop\freetype_test> .\build.release.bat 
size=12, unicode('0')

0   0
0   0
0   0
0   0







PS C:\Users\danieltao\Desktop\freetype_test> .\build.release.bat 
size=12, unicode('1')

 00
  0
  0


PS C:\Users\danieltao\Desktop\freetype_test> .\build.release.bat 
size=12, unicode(好)
 0    00000 
 0        0 
00000    0  
 0  0   0   
 0  0   0   
 0  0 00000 
 0 0    0
 0 0    0
  0     0
 0 0    0
0   0  00

[Engrtao]

字体文件：https://github.com/andot/zfull-for-yosemite/blob/master/fonts/Zfull-GB.ttf

另外在在画图软件上使用这个字体是正常的：