Question

我正在尝试为我的未来游戏创建一个关卡编辑器，为此，我需要在wxWidgets库的wxGLCanvas中显示cocos2dx场景。

如何将wxGLCanvas与cocos2d :: GLView链接？

我做了什么：

创建了一个继承自GLView的类ccwxGLView：

class ccwxGLView : public cocos2d::GLView
{
    ccwxGLCanvas* mGLCanvas;

public:
    ccwxGLView(ccwxGLCanvas* canvas) {
        setGLCanvas(canvas);
    }

    virtual ~ccwxGLView(void) {}

    static ccwxGLView* create(ccwxGLCanvas* canvas) {
        auto ret = new (std::nothrow) ccwxGLView(canvas);
        if(ret) {
            ret->autorelease();
            return ret;
        }
        return nullptr;
    }

    void setGLCanvas(ccwxGLCanvas* canvas) {
        mGLCanvas = canvas;
    }
    ccwxGLCanvas* getGLCanvas() {
        return mGLCanvas;
    }

    HWND getWin32Window() {
        return mGLCanvas->GetParent()->GetHWND();
    }

    /** Force destroying EGL view, subclass must implement this method. */
    virtual void end() {
        mGLCanvas->Close();
        wxDELETE(mGLCanvas);
        mGLCanvas = nullptr;
    }

    /** Get whether opengl render system is ready, subclass must implement this method. */
    virtual bool isOpenGLReady() {
        return (mGLCanvas && mGLCanvas->IsShown());
    }

    /** Exchanges the front and back buffers, subclass must implement this method. */
    virtual void swapBuffers() {
        mGLCanvas->SwapBuffers();
    }

    virtual void setIMEKeyboardState(bool open) {}

    virtual bool windowShouldClose() {
        return (mGLCanvas == nullptr);
    }
};

创建了一个继承自wxGLCanvas的类：

class ccwxGLCanvas : public wxGLCanvas
{
    wxGLContext*    m_context;

public:
    ccwxGLCanvas(wxFrame* parent, int* args)
        : wxGLCanvas(parent, wxID_ANY, args, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
    {
        m_context = new wxGLContext(this);
    }

    virtual ~ccwxGLCanvas() { delete m_context; }

    void resized(wxSizeEvent& evt) {
        Refresh();
    }

    void render(wxPaintEvent& evt) {
        cocos2d::Director* director = cocos2d::Director::getInstance();
        if(director != nullptr && director->getRunningScene() != nullptr)
            director->drawScene();
    }
};

在AppDelegate中，我修改了glView初始化：

if(!glview) {
    glview = ccwxGLView::create(mGLCanvas);
    director->setOpenGLView(glview);
}

在app init函数上，我写了这样的东西：

wxBoxSizer* sizer = new wxBoxSizer(wxHORIZONTAL);
frame = new wxFrame((wxFrame *)NULL, -1,  wxT("Hello GL World"), wxPoint(50,50), wxSize(400,200));

int args[] = {WX_GL_RGBA, WX_GL_DOUBLEBUFFER, WX_GL_DEPTH_SIZE, 16, 0};

glPane = new ccwxGLCanvas( (wxFrame*) frame, args);
sizer->Add(glPane, 1, wxEXPAND);

frame->SetSizer(sizer);
frame->SetAutoLayout(true);

frame->Show();

ccApp = new AppDelegate();
ccApp->setGLCanvas(glPane);
ccApp->applicationDidFinishLaunching();

当我跑步时，会显示一个wxFrame（窗口），应用程序会立即崩溃。调用堆栈：

libcocos2d.dll！cocos2d :: Renderer :: setupVBO（）第352行C ++ libcocos2d.dll！cocos2d :: Renderer :: setupBuffer（）第285行C ++ libcocos2d.dll！cocos2d :: Renderer :: initGLView（）第272行C ++ libcocos2d.dll！cocos2d :: Director :: setOpenGLView（cocos2d :: GLView * openGLView）第394行C ++ editor.exe！AppDelegate :: applicationDidFinishLaunching（）第44行C ++ editor.exe！EditorApp :: OnInit（）第25行C ++ wxbase30ud_vc_custom.dll！wxAppConsoleBase :: CallOnInit（）第93行C ++ wxbase30ud_vc_custom.dll！wxEntryReal（int＆amp; argc，wchar_t * * argv）第479行C ++ wxbase30ud_vc_custom.dll！wxEntry（int＆amp; argc，wchar_t * * argv）第188行C ++

如何将cocos2dx转换为wxWidgets

0 个答案: