问题描述
我正在尝试使我的Java程序跨平台,这就是为什么我在Linux上对其进行测试并且结果非常糟糕的原因。基本上,在修复了一些错误并让本机库正确加载之后,此错误消息使我感到满意,因为程序在一秒钟或更短的时间内退出了:
X Error of failed request: RenderBadPicture (invalid Picture parameter)
Major opcode of failed request: 139 (RENDER)
Minor opcode of failed request: 7 (RenderFreePicture)
Picture id in failed request: 0x4c0002b
Serial number of failed request: 766
Current serial number in output stream: 778
这是程序设置例程:
//Initializes lwjgl
loadLibrary();
//creates the glfw window
System.out.println("Initializing window...");
window=new Window();
//This is not relevant and does not cause any problem
System.out.println("Initializing camera...");
camera = new Camera(window.getWidth(),window.getHeight());
//This is where the error happens
System.out.println("Creating context...");
//"Creating context..." is output correctly of course
GL.createCapabilities();
/*Right after this function is called,there is only a 0,5-1 seconds window in which the program
will stay open before showing the X Error (and it continues normally in that time with the
initialization stuff,confirming that the error is asynchronous*/
用于窗口初始化的代码(为了更好的可读性,我将仅包括相关部分,而不包括整个类):
public Window() {
Dimension d = defaultD();
int w = (int)(d.getWidth()*0.7d);
int h = (int)(d.getHeight()*0.7d);
width=w;
height=h;
createWindow(w,h);
}
public Dimension defaultD() {
GLFWVidMode mode = glfwGetVideoMode(glfwGetPrimaryMonitor());
int w = mode.width();
int h = mode.height();
return new Dimension(w,h);
}
public void createWindow(int width,int height) {
Dimension d = defaultD();
window = glfwCreateWindow(width,height,title,0);
if(window==0) {
JOptionPane.showMessageDialog(null,"Failed to initialize window");
System.exit(1);
}
glfwSetWindowSizeLimits(window,width,height);
glfwSetWindowPos(window,(int)((d.getWidth()-width)/2),(int)((d.getHeight()-height)/2));
//this is necessary before calling GL.createcapabilities(),otherwise the program crashes
glfwMakeContextCurrent(window);
destroyed=false;
}
我真的不知道这是由什么引起的(也是,因为我重复一遍,这个完全相同的代码在Windows上可以很好地工作),而且我也无法捕捉到此错误并防止其中止执行,因为不是Java异常。 可以向我指出正确方向的任何帮助都将受到高度赞赏。如果需要更多代码示例,请告诉我,我会更新我的帖子。
解决方法
问题出在我在问题中张贴的代码之外。显然,调用JOptionPane.showMessageDialog(String)
足以触发此X错误...我的错