I use mupdf on Ubutu on a VMware process on my MacBook Pro, via remote
X on ssh. It works great, and I don't know why. Specifically, I don't
know what font it uses. How can I find out without tracing through the
code in gdb?
mupdf uses OpenGL, but on a headless virtual machine, OpenGL devolves
to simple X11 using GLUT and xlib. Therefore, I should be able to
produce a window with identical text and font using xlib directly. But
no amount of experimentation and intuition using xfontsel has yielded a
font that looks anywhere near as good as what mupdf displays.
It might be more than a matter of simply choosing the right font
(although one must nearly always start somewhere). I don't think it's
anything too fancy. For example, there's no xrandr support:
$ xrandr --listproviders
Providers: number : 0
The xtrace listing looks very much like the ltrace listing. It barely
mentions fonts, and it says it ... uses pointers:
$ grep Font o | cut -b-65
26918 [email protected](0x55b9cebd5400, 68, 0x7ff6e7c
26918 [email protected](0x55b9cebd5400, 0x7ff6e6adf347, 0x7ff
26918 [email protected](0x55b9cebd5400, 0x7ff6
26918 <... XLoadFont resumed> ) = 0x4400002
26918 <... XCreateFontCursor resumed> ) = 0x4400003
26918 [email protected](0x55b9cebd5400, 60, 0x7ff6e6a
26918 <... XCreateFontCursor resumed> ) = 0x4400004
26918 [email protected](0x55b9cebd5400, 150, 0x7ff6e6
26918 <... XCreateFontCursor resumed> ) = 0x4400005
26918 [email protected](0x55b9cebd5400, 152, 0x7ff6e6
26918 <... XCreateFontCursor resumed> ) = 0x4400006
26918 [email protected](0x55b9cebd5400, 0x4400002, 0, 0 <un
26918 <... XUnloadFont resumed> ) = 1
000:<:0016: 20: Request(45): OpenFont fid=0x04400002 name='cursor
000:<:008e: 8: Request(46): CloseFont font=0x04400002
Not much help there.
Suggestions?
--jkl
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