[ft] caching subsystem, caching images?

[Ulrich Mierendorff]

Hi,
I've looked  into freetype's caching subsystem. As far as I understand 
it does not cache bitmaps of rendered glyphs. Am I correct? I come to 
this opinion because I've also read a bit in "ftcommon.c" from the 
"ft2demos" and it looks like if a glyph is always rerendered (lines 
870ff). So I have to implement bitmap-caching myself?