png_write_sBIT    833 3rdparty/libpng/pngpriv.h PNG_EXTERN void png_write_sBIT PNGARG((png_structp png_ptr,
png_write_sBIT     77 3rdparty/libpng/pngwrite.c       png_write_sBIT(png_ptr, &(info_ptr->sig_bit), info_ptr->color_type);