EGL_SYNC_FENCE_KHR,NULL);if(sync==EGL_NO_SYNC_KHR){// 错误处理printf("Failed to create sync object\n");}returnsync;}voidrender(EGLDisplay display,EGLSyncKHR sync){// 开始绘制glClear(GL_COLOR_BUFFER_BIT);// 表示所有绘制命令已发送到设备eglSignalSync...