implement cloud browser

engine/util.cpp

@@ -125,6 +125,13 @@ void check_OpenGLError(const char* stmt, const char* fname, int line)
     }
 }
 
+size_t curl_data_handler(void *contents, size_t size, size_t nmemb, void *userp)
+{
+    auto buffer = reinterpret_cast<std::string*>(userp);
+    buffer->append((char*)contents, size * nmemb);
+    return size * nmemb;
+}
+
 #ifdef _DEBUG
 #define GL(stmt) stmt; CheckOpenGLError(#stmt, __FILE__, __LINE__);
 #else