png_get_interlace_type 100 third_party/libpng/pngget.c png_get_interlace_type(png_structp png_ptr, png_infop info_ptr) png_get_interlace_type 233 third_party/libpng/pngusr.h #define png_get_interlace_type wk_png_get_interlace_type