png_text_compress 1239 pngwutil.c        if (png_text_compress(png_ptr, png_iCCP, &comp, name_len) != Z_OK)
png_text_compress 1658 pngwutil.c        if (png_text_compress(png_ptr, png_zTXt, &comp, key_len) != Z_OK)
png_text_compress 1744 pngwutil.c           if (png_text_compress(png_ptr, png_iTXt, &comp, prefix_len) != Z_OK)