PNG_GAMMA_THRESHOLD  479 third_party/libpng/pngconf.h #ifndef PNG_GAMMA_THRESHOLD
PNG_GAMMA_THRESHOLD  559 third_party/libpng/pngrtran.c    if ((fabs(scrn_gamma * file_gamma - 1.0) > PNG_GAMMA_THRESHOLD) ||
PNG_GAMMA_THRESHOLD  913 third_party/libpng/pngrtran.c          < PNG_GAMMA_THRESHOLD))
PNG_GAMMA_THRESHOLD  977 third_party/libpng/pngrtran.c                if ( fabs(gs - 1.0) < PNG_GAMMA_THRESHOLD)
PNG_GAMMA_THRESHOLD 2650 third_party/libpng/pngrtran.c              || fabs(g - 1.0) < PNG_GAMMA_THRESHOLD)