Lines Matching full:png_debug
4969 The macro definition PNG_DEBUG can be used to request debugging
4975 When PNG_DEBUG > 0, the following functions (macros) become available:
4977 png_debug(level, message)
4981 in which "level" is compared to PNG_DEBUG to decide whether to print
4990 if (PNG_DEBUG > 2)
4993 When PNG_DEBUG is defined but is zero, the macros aren't defined, but you
4994 can still use PNG_DEBUG to control your own debugging:
4996 #ifdef PNG_DEBUG
5000 When PNG_DEBUG = 1, the macros are defined, but only png_debug statements
