png_set_swap_alpha 1389 3rdparty/libpng/png.h PNG_EXPORT(37, void, png_set_swap_alpha, (png_structp png_ptr));
png_set_swap_alpha 1232 3rdparty/libpng/pngread.c       png_set_swap_alpha(png_ptr);
png_set_swap_alpha 1619 3rdparty/libpng/pngwrite.c       png_set_swap_alpha(png_ptr);