dvipng: Debug options
7.2 Debug options
=================
The '-d' flag to dvipng helps in tracking down certain errors. The
parameter to this flag is an integer that tells what errors are
currently being tracked. To track a certain class of debug messages,
simply provide the appropriate number given below; if you wish to track
multiple classes, sum the numbers of the classes you wish to track. To
track all classes, you can use '-1'.
Some of these debugging options are actually provided by Kpathsea
((kpathsea)Debugging).
The classes are:
1
Normal dvi op-codes
2
Virtual fonts
4
PK fonts
8
TFM files
16
Glyph rendering
32
FreeType calls
64
Encoding loads
128
Color specials
256
GhostScript specials
512
Kpathsea 'stat' calls
1024
Kpathsea hash table lookups
2048
Kpathsea path element expansion
4096
Kpathsea path searches