png_destroy_gamma_table 2756 3rdparty/libpng/png.c     png_destroy_gamma_table(png_ptr);
png_destroy_gamma_table 1662 3rdparty/libpng/pngpriv.h PNG_EXTERN void png_destroy_gamma_table(png_structp png_ptr);
png_destroy_gamma_table 1040 3rdparty/libpng/pngread.c    png_destroy_gamma_table(png_ptr);