png_set_swap_alpha 1727 third_party/libpng/png.h extern PNG_EXPORT(void,png_set_swap_alpha) PNGARG((png_structp png_ptr));
png_set_swap_alpha 1461 third_party/libpng/pngread.c        png_set_swap_alpha(png_ptr);
png_set_swap_alpha 1545 third_party/libpng/pngwrite.c       png_set_swap_alpha(png_ptr);