RES ResourceFormatPKM::load(const String &p_path, const String &p_original_path, Error *r_error) { if (r_error) *r_error = ERR_CANT_OPEN; Error err; FileAccess *f = FileAccess::open(p_path, FileAccess::READ, &err); if (!f) return RES(); FileAccessRef fref(f); if (r_error) *r_error = ERR_FILE_CORRUPT; ERR_EXPLAIN("Unable to open PKM texture file: " + p_path); ERR_FAIL_COND_V(err != OK, RES()); // big endian f->set_endian_swap(true); ETC1Header h; ERR_EXPLAIN("Invalid or Unsupported PKM texture file: " + p_path); f->get_buffer((uint8_t *)&h.tag, sizeof(h.tag)); if (strncmp(h.tag, "PKM 10", sizeof(h.tag))) ERR_FAIL_V(RES()); h.format = f->get_16(); h.texWidth = f->get_16(); h.texHeight = f->get_16(); h.origWidth = f->get_16(); h.origHeight = f->get_16(); PoolVector<uint8_t> src_data; uint32_t size = h.texWidth * h.texHeight / 2; src_data.resize(size); PoolVector<uint8_t>::Write wb = src_data.write(); f->get_buffer(wb.ptr(), size); wb = PoolVector<uint8_t>::Write(); int mipmaps = h.format; int width = h.origWidth; int height = h.origHeight; Ref<Image> img = memnew(Image(width, height, mipmaps, Image::FORMAT_ETC, src_data)); Ref<ImageTexture> texture = memnew(ImageTexture); texture->create_from_image(img); if (r_error) *r_error = OK; return texture; }