fix transform commit shader

src/util.h

@@ -59,6 +59,8 @@ glm::vec3 convert_hsv2rgb(const glm::vec3 c);
 glm::vec3 convert_rgb2hsv(const glm::vec3 c);
 std::vector<std::string> split(const std::string& subject, char d, int max_split = 0);
 std::string unescape(const std::string& s);
+std::wstring str2wstr(const std::string& str);
+std::string wstr2str(const std::wstring& wstr);
 
 size_t curl_data_handler(void *contents, size_t size, size_t nmemb, void *userp);
 size_t curl_data_write(void *ptr, size_t size, size_t nmemb, FILE *stream);