void write_png(const char *filename, unsigned char *screenbuf)
{
FILE *fp = fopen(filename, "wb");
- png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, NULL, NULL);
+ png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
png_infop info_ptr = png_create_info_struct(png_ptr);
if (setjmp(png_jmpbuf(png_ptr))) {