ogre嵌入mfc，0x0f7a7cfb 处有未经处理的异常: 0xC0000005: 读取位置 0x00000000 时发生访问冲突

kuanbifeng6183 2016-10-10 08:34:38

最近想把ogre嵌入mfc中，参考《一步一步教你把Ogre嵌入MFC》的步骤，http://www.zyh1690.org/step-by-step-to-teach-you-the-ogre-embedded-mfc/#three，第二步骤分割窗口可以，但是第三步的将ogre嵌入mfc中编译成功，但是显示冲突，是在添加定时器消息的时候显示错误，不知道是不是m_pRoot这个指针有问题。就把第三步涉及的代码贴上来。

//添加定时器消息
void Ckuangjia2View::OnTimer(UINT_PTR nIDEvent)
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
m_pRoot->renderOneFrame();
CFormView::OnTimer(nIDEvent);
}

最终程序想生成这个，但是右边的窗口一直显示不出来

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赵4老师 2016-10-11

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有时不将“调用函数名字＋各参数值，进入函数后各参数值，中间变量值，退出函数前准备返回的值，返回函数到调用处后函数名字＋各参数值＋返回值”这些信息写日志到文件中是无论如何也发现不了问题在哪里的，包括捕获各种异常、写日志到屏幕、单步或设断点或生成core文件、……这些方法都不行！写日志到文件参考下面：

//循环向a函数每次发送200个字节长度（这个是固定的）的buffer,
//a函数中需要将循环传进来的buffer，组成240字节（也是固定的）的新buffer进行处理，
//在处理的时候每次从新buffer中取两个字节打印
#ifdef _MSC_VER
    #pragma warning(disable:4996)
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _MSC_VER
    #include <windows.h>
    #include <process.h>
    #include <io.h>
    #define  MYVOID             void
    #define  vsnprintf          _vsnprintf
#else
    #include <unistd.h>
    #include <sys/time.h>
    #include <pthread.h>
    #define  CRITICAL_SECTION   pthread_mutex_t
    #define  MYVOID             void *
#endif
//Log{
#define MAXLOGSIZE 20000000
#define MAXLINSIZE 16000
#include <time.h>
#include <sys/timeb.h>
#include <stdarg.h>
char logfilename1[]="MyLog1.log";
char logfilename2[]="MyLog2.log";
static char logstr[MAXLINSIZE+1];
char datestr[16];
char timestr[16];
char mss[4];
CRITICAL_SECTION cs_log;
FILE *flog;
#ifdef _MSC_VER
void Lock(CRITICAL_SECTION *l) {
    EnterCriticalSection(l);
}
void Unlock(CRITICAL_SECTION *l) {
    LeaveCriticalSection(l);
}
void sleep_ms(int ms) {
    Sleep(ms);
}
#else
void Lock(CRITICAL_SECTION *l) {
    pthread_mutex_lock(l);
}
void Unlock(CRITICAL_SECTION *l) {
    pthread_mutex_unlock(l);
}
void sleep_ms(int ms) {
    usleep(ms*1000);
}
#endif
void LogV(const char *pszFmt,va_list argp) {
    struct tm *now;
    struct timeb tb;

    if (NULL==pszFmt||0==pszFmt[0]) return;
    vsnprintf(logstr,MAXLINSIZE,pszFmt,argp);
    ftime(&tb);
    now=localtime(&tb.time);
    sprintf(datestr,"%04d-%02d-%02d",now->tm_year+1900,now->tm_mon+1,now->tm_mday);
    sprintf(timestr,"%02d:%02d:%02d",now->tm_hour     ,now->tm_min  ,now->tm_sec );
    sprintf(mss,"%03d",tb.millitm);
    printf("%s %s.%s %s",datestr,timestr,mss,logstr);
    flog=fopen(logfilename1,"a");
    if (NULL!=flog) {
        fprintf(flog,"%s %s.%s %s",datestr,timestr,mss,logstr);
        if (ftell(flog)>MAXLOGSIZE) {
            fclose(flog);
            if (rename(logfilename1,logfilename2)) {
                remove(logfilename2);
                rename(logfilename1,logfilename2);
            }
        } else {
            fclose(flog);
        }
    }
}
void Log(const char *pszFmt,...) {
    va_list argp;

    Lock(&cs_log);
    va_start(argp,pszFmt);
    LogV(pszFmt,argp);
    va_end(argp);
    Unlock(&cs_log);
}
//Log}
#define ASIZE    200
#define BSIZE    240
#define CSIZE      2
char Abuf[ASIZE];
char Cbuf[CSIZE];
CRITICAL_SECTION cs_HEX;
CRITICAL_SECTION cs_BBB;
struct FIFO_BUFFER {
    int  head;
    int  tail;
    int  size;
    char data[BSIZE];
} BBB;
int No_Loop=0;
void HexDump(int cn,char *buf,int len) {
    int i,j,k;
    char binstr[80];

    Lock(&cs_HEX);
    for (i=0;i<len;i++) {
        if (0==(i%16)) {
            sprintf(binstr,"%03d %04x -",cn,i);
            sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
        } else if (15==(i%16)) {
            sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
            sprintf(binstr,"%s  ",binstr);
            for (j=i-15;j<=i;j++) {
                sprintf(binstr,"%s%c",binstr,('!'<buf[j]&&buf[j]<='~')?buf[j]:'.');
            }
            Log("%s\n",binstr);
        } else {
            sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
        }
    }
    if (0!=(i%16)) {
        k=16-(i%16);
        for (j=0;j<k;j++) {
            sprintf(binstr,"%s   ",binstr);
        }
        sprintf(binstr,"%s  ",binstr);
        k=16-k;
        for (j=i-k;j<i;j++) {
            sprintf(binstr,"%s%c",binstr,('!'<buf[j]&&buf[j]<='~')?buf[j]:'.');
        }
        Log("%s\n",binstr);
    }
    Unlock(&cs_HEX);
}
int GetFromRBuf(int cn,CRITICAL_SECTION *cs,struct FIFO_BUFFER *fbuf,char *buf,int len) {
    int lent,len1,len2;

    lent=0;
    Lock(cs);
    if (fbuf->size>=len) {
        lent=len;
        if (fbuf->head+lent>BSIZE) {
            len1=BSIZE-fbuf->head;
            memcpy(buf     ,fbuf->data+fbuf->head,len1);
            len2=lent-len1;
            memcpy(buf+len1,fbuf->data           ,len2);
            fbuf->head=len2;
        } else {
            memcpy(buf     ,fbuf->data+fbuf->head,lent);
            fbuf->head+=lent;
        }
        fbuf->size-=lent;
    }
    Unlock(cs);
    return lent;
}
MYVOID thdB(void *pcn) {
    char        *recv_buf;
    int          recv_nbytes;
    int          cn;
    int          wc;
    int          pb;

    cn=(int)pcn;
    Log("%03d thdB              thread begin...\n",cn);
    while (1) {
        sleep_ms(10);
        recv_buf=(char *)Cbuf;
        recv_nbytes=CSIZE;
        wc=0;
        while (1) {
            pb=GetFromRBuf(cn,&cs_BBB,&BBB,recv_buf,recv_nbytes);
            if (pb) {
                Log("%03d recv %d bytes\n",cn,pb);
                HexDump(cn,recv_buf,pb);
                sleep_ms(1);
            } else {
                sleep_ms(1000);
            }
            if (No_Loop) break;//
            wc++;
            if (wc>3600) Log("%03d %d==wc>3600!\n",cn,wc);
        }
        if (No_Loop) break;//
    }
#ifndef _MSC_VER
    pthread_exit(NULL);
#endif
}
int PutToRBuf(int cn,CRITICAL_SECTION *cs,struct FIFO_BUFFER *fbuf,char *buf,int len) {
    int lent,len1,len2;

    Lock(cs);
    lent=len;
    if (fbuf->size+lent>BSIZE) {
        lent=BSIZE-fbuf->size;
    }
    if (fbuf->tail+lent>BSIZE) {
        len1=BSIZE-fbuf->tail;
        memcpy(fbuf->data+fbuf->tail,buf     ,len1);
        len2=lent-len1;
        memcpy(fbuf->data           ,buf+len1,len2);
        fbuf->tail=len2;
    } else {
        memcpy(fbuf->data+fbuf->tail,buf     ,lent);
        fbuf->tail+=lent;
    }
    fbuf->size+=lent;
    Unlock(cs);
    return lent;
}
MYVOID thdA(void *pcn) {
    char        *send_buf;
    int          send_nbytes;
    int          cn;
    int          wc;
    int           a;
    int          pa;

    cn=(int)pcn;
    Log("%03d thdA              thread begin...\n",cn);
    a=0;
    while (1) {
        sleep_ms(100);
        memset(Abuf,a,ASIZE);
        a=(a+1)%256;
        if (16==a) {No_Loop=1;break;}//去掉这句可以让程序一直循环直到按Ctrl+C或Ctrl+Break或当前目录下存在文件No_Loop
        send_buf=(char *)Abuf;
        send_nbytes=ASIZE;
        Log("%03d sending %d bytes\n",cn,send_nbytes);
        HexDump(cn,send_buf,send_nbytes);
        wc=0;
        while (1) {
            pa=PutToRBuf(cn,&cs_BBB,&BBB,send_buf,send_nbytes);
            Log("%03d sent %d bytes\n",cn,pa);
            HexDump(cn,send_buf,pa);
            send_buf+=pa;
            send_nbytes-=pa;
            if (send_nbytes<=0) break;//
            sleep_ms(1000);
            if (No_Loop) break;//
            wc++;
            if (wc>3600) Log("%03d %d==wc>3600!\n",cn,wc);
        }
        if (No_Loop) break;//
    }
#ifndef _MSC_VER
    pthread_exit(NULL);
#endif
}
int main() {
#ifdef _MSC_VER
    InitializeCriticalSection(&cs_log);
    InitializeCriticalSection(&cs_HEX);
    InitializeCriticalSection(&cs_BBB);
#else
    pthread_t threads[2];
    int threadsN;
    int rc;
    pthread_mutex_init(&cs_log,NULL);
    pthread_mutex_init(&cs_HEX,NULL);
    pthread_mutex_init(&cs_BBB,NULL);
#endif
    Log("Start===========================================================\n");

    BBB.head=0;
    BBB.tail=0;
    BBB.size=0;

#ifdef _MSC_VER
    _beginthread((void(__cdecl *)(void *))thdA,0,(void *)1);
    _beginthread((void(__cdecl *)(void *))thdB,0,(void *)2);
#else
    threadsN=0;
    rc=pthread_create(&(threads[threadsN++]),NULL,thdA,(void *)1);if (rc) Log("%d=pthread_create %d error!\n",rc,threadsN-1);
    rc=pthread_create(&(threads[threadsN++]),NULL,thdB,(void *)2);if (rc) Log("%d=pthread_create %d error!\n",rc,threadsN-1);
#endif

    if (!access("No_Loop",0)) {
        remove("No_Loop");
        if (!access("No_Loop",0)) {
            No_Loop=1;
        }
    }
    while (1) {
        sleep_ms(1000);
        if (No_Loop) break;//
        if (!access("No_Loop",0)) {
            No_Loop=1;
        }
    }
    sleep_ms(3000);
    Log("End=============================================================\n");
#ifdef _MSC_VER
    DeleteCriticalSection(&cs_BBB);
    DeleteCriticalSection(&cs_HEX);
    DeleteCriticalSection(&cs_log);
#else
    pthread_mutex_destroy(&cs_BBB);
    pthread_mutex_destroy(&cs_HEX);
    pthread_mutex_destroy(&cs_log);
#endif
    return 0;
}

赵4老师 2016-10-11

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崩溃的时候在弹出的对话框按相应按钮进入调试，按Alt+7键查看Call Stack即“调用堆栈”里面从上到下列出的对应从里层到外层的函数调用历史。双击某一行可将光标定位到此次调用的源代码或汇编指令处，看不懂时双击下一行，直到能看懂为止。

zgl7903 2016-10-11

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m_pRoot 没有初始化？ if(m_pRoot) m_pRoot ->xxxxxx m_pRoot = new Root 设置断点看看有没有创建成功，

kuanbifeng6183 2016-10-11

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如果直接运行，不加断点，如图

kuanbifeng6183 2016-10-11

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调用堆栈以后不知道怎么看错误，能帮忙看看下一步是什么吗

zgl7903 2016-10-11

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VS IDE 菜单调试异常打开异常 Win32 C00000005 异常调试运行在报这个错误的时候会停止在代码处结合调试堆栈，看看问题出在哪里

kuanbifeng6183 2016-10-11

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@赵4老师 @paschen @zgl7903 ,大神们能帮忙看看吗~

蠓虫带着秤砣飞 2016-10-10

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Ogre没有做过。实在抱歉，无法细看代码。但这个错误，明显是指针为NULL的问题。这里检查一下，是否new失败了吧。 m_pRoot = new Root("plugins_d.cfg");//分配指针其他的地方我个人是没有办法分析了。我自己没有做过，也没有环境。。。

kuanbifeng6183 2016-10-10

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// kuangjia2View.h : Ckuangjia2View 类的接口 // #pragma once #include "resource.h" #include "kuangjia2Doc.h" #include "Ogre\Ogre.h" #include "Ogre\OgreConfigFile.h" using namespace Ogre; class Ckuangjia2View : public CFormView { protected: // 仅从序列化创建 Ckuangjia2View(); DECLARE_DYNCREATE(Ckuangjia2View) public: enum{ IDD = IDD_KUANGJIA2_FORM }; // 特性 public: Ckuangjia2Doc* GetDocument() const; // 操作 public: // 重写 public: virtual BOOL PreCreateWindow(CREATESTRUCT& cs); protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持 virtual void OnInitialUpdate(); // 构造后第一次调用 // 实现 public: virtual ~Ckuangjia2View(); #ifdef _DEBUG virtual void AssertValid() const; virtual void Dump(CDumpContext& dc) const; #endif protected: // 生成的消息映射函数 protected: afx_msg void OnFilePrintPreview(); afx_msg void OnRButtonUp(UINT nFlags, CPoint point); afx_msg void OnContextMenu(CWnd* pWnd, CPoint point); DECLARE_MESSAGE_MAP() public: void SetupResource(void); // 启用手动设置部分 void SetupConfig(void); Root* m_pRoot; void CreateRanderWnd(void); //视图类成员 RenderWindow* m_pWindow; // 创建场景管理器 void CreateSceneManager(void); // 场景管理器 SceneManager* m_pSceneManager; // 创建摄像机 void CreateCamera(void); // 摄像机 Camera* m_pCamera; // 设置视口 void CreateViewPort(void); void LoadResource(void); // 创建场景 void CreateScene(void); // 创建实体 void CreateEntity(void); SceneNode *node1; Entity *ent1; // 创建地面 void CreateFloorPlane(void); // 将上面的函数执行启动3D画面 void SetupMFC(void); afx_msg void OnTimer(UINT_PTR nIDEvent); // ondraw函数设置计时器 bool bHasInit; virtual void OnDraw(CDC* /*pDC*/); afx_msg void OnDestroy(); afx_msg void OnSize(UINT nType, int cx, int cy); }; #ifndef _DEBUG // kuangjia2View.cpp 中的调试版本 inline Ckuangjia2Doc* Ckuangjia2View::GetDocument() const { return reinterpret_cast<Ckuangjia2Doc*>(m_pDocument); } #endif

kuanbifeng6183 2016-10-10

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// kuangjia2View.cpp : Ckuangjia2View 类的实现 // #include "stdafx.h" // SHARED_HANDLERS 可以在实现预览、缩略图和搜索筛选器句柄的 // ATL 项目中进行定义，并允许与该项目共享文档代码。 #ifndef SHARED_HANDLERS #include "kuangjia2.h" #endif #include "kuangjia2Doc.h" #include "kuangjia2View.h" #include "MainFrm.h" #ifdef _DEBUG #define OGRE_DEBUG_MEMORY_MANAGER 1 #endif // Ckuangjia2View IMPLEMENT_DYNCREATE(Ckuangjia2View, CFormView) BEGIN_MESSAGE_MAP(Ckuangjia2View, CFormView) ON_WM_CONTEXTMENU() ON_WM_RBUTTONUP() ON_WM_TIMER() ON_WM_DESTROY() ON_WM_SIZE() END_MESSAGE_MAP() // Ckuangjia2View 构造/析构 Ckuangjia2View::Ckuangjia2View() : CFormView(Ckuangjia2View::IDD) , m_pRoot(NULL) , m_pWindow(NULL) , m_pSceneManager(NULL) , m_pCamera(NULL) , node1(NULL) , ent1(NULL) , bHasInit(false) { // TODO: 在此处添加构造代码 m_pRoot = new Root("plugins_d.cfg");//分配指针 BOOL bHasInit = TRUE; } Ckuangjia2View::~Ckuangjia2View() { delete m_pRoot; } void Ckuangjia2View::DoDataExchange(CDataExchange* pDX) { CFormView::DoDataExchange(pDX); } BOOL Ckuangjia2View::PreCreateWindow(CREATESTRUCT& cs) { // TODO: 在此处通过修改 // CREATESTRUCT cs 来修改窗口类或样式 return CFormView::PreCreateWindow(cs); } void Ckuangjia2View::OnInitialUpdate() { CFormView::OnInitialUpdate(); GetParentFrame()->RecalcLayout(); ResizeParentToFit(); } void Ckuangjia2View::OnRButtonUp(UINT /* nFlags */, CPoint point) { ClientToScreen(&point); OnContextMenu(this, point); } void Ckuangjia2View::OnContextMenu(CWnd* /* pWnd */, CPoint point) { #ifndef SHARED_HANDLERS theApp.GetContextMenuManager()->ShowPopupMenu(IDR_POPUP_EDIT, point.x, point.y, this, TRUE); #endif } // Ckuangjia2View 诊断 #ifdef _DEBUG void Ckuangjia2View::AssertValid() const { CFormView::AssertValid(); } void Ckuangjia2View::Dump(CDumpContext& dc) const { CFormView::Dump(dc); } Ckuangjia2Doc* Ckuangjia2View::GetDocument() const // 非调试版本是内联的 { ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(Ckuangjia2Doc))); return (Ckuangjia2Doc*)m_pDocument; } #endif //_DEBUG // Ckuangjia2View 消息处理程序 void Ckuangjia2View::SetupResource(void) { ConfigFile cf; cf.load("resources_d.cfg"); ConfigFile::SectionIterator seci = cf.getSectionIterator(); String secName; String typeName; String archName; while (seci.hasMoreElements()) { secName = seci.peekNextKey(); ConfigFile::SettingsMultiMap* settings = seci.getNext(); ConfigFile::SettingsMultiMap::iterator i; for (i = settings->begin();i!=settings->end();++i) { typeName = i->first; //类型名，如zip，filesystem等 archName = i->second; //档案名（路径） ResourceGroupManager::getSingleton().addResourceLocation(archName,typeName,secName); } } } // 启用手动设置部分 void Ckuangjia2View::SetupConfig(void) { RenderSystemList* rl = &const_cast<RenderSystemList&>(m_pRoot->getAvailableRenderers()); RenderSystem* rSys = NULL; RenderSystemList::iterator it = rl->begin(); while (it!=rl->end()) { if (-1 != (*it)->getName().find("GL")) //if (-1 != (*it)->getName().find("Direct3D9")) { rSys = (RenderSystem*)(*it); break; } ++it; } rSys->setConfigOption("Full Screen","Yes"); rSys->setConfigOption("VSync","No"); m_pRoot->setRenderSystem(rSys); } //创造渲染窗口,打错了，render void Ckuangjia2View::CreateRanderWnd(void) { m_pRoot->initialise(false); NameValuePairList miscParams; miscParams["externalWindowHandle"] = StringConverter::toString((unsigned int)m_hWnd); CRect rt; ::GetClientRect(*(((CMainFrame*)AfxGetMainWnd())->m_kuangjia2View),&rt); m_pWindow = m_pRoot->createRenderWindow("test",rt.Width(),rt.Height(),false,&miscParams); } // 创建场景管理器 void Ckuangjia2View::CreateSceneManager(void) { m_pSceneManager = m_pRoot->createSceneManager(ST_GENERIC,"ExampleSMInstance"); } // 创建摄像机 void Ckuangjia2View::CreateCamera(void) { m_pCamera = m_pSceneManager->createCamera("PlayerCam"); m_pCamera->setPosition(Vector3(0,200,500)); m_pCamera->lookAt(Vector3(0,0,0)); m_pCamera->setNearClipDistance(5); m_pCamera->setFarClipDistance(0); } // 设置视口 void Ckuangjia2View::CreateViewPort(void) { Viewport* vp = m_pWindow->addViewport(m_pCamera); vp->setBackgroundColour(ColourValue(255,0,0)); m_pCamera->setAspectRatio(Real(vp->getActualWidth())/Real(vp->getActualHeight())); TextureManager::getSingleton().setDefaultNumMipmaps(5); } //加载所有资源 void Ckuangjia2View::LoadResource(void) { Ogre::ResourceGroupManager::getSingleton().initialiseAllResourceGroups(); } // 创建场景 void Ckuangjia2View::CreateScene(void) { m_pSceneManager->setAmbientLight(ColourValue(1.0,1.0,1.0)); m_pSceneManager->setSkyDome(true,"Examples/CloudySky",65); } // 创建实体 void Ckuangjia2View::CreateEntity(void) { ent1 = m_pSceneManager->createEntity("sphere","ninja.mesh"); node1 = m_pSceneManager->getRootSceneNode()->createChildSceneNode(); node1->translate(Vector3(0,0,0)); node1->attachObject(ent1); } // 创建地面 void Ckuangjia2View::CreateFloorPlane(void) { Entity* ent; Plane p; p.d = 0; p.normal = Vector3::UNIT_Y; MeshManager::getSingleton().createPlane("cube.mesh",ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,p,2000,2000,1,1,true,1,5,5,Vector3::UNIT_Z); ent = m_pSceneManager->createEntity("floor","cube.mesh"); ent->setMaterialName("Examples/RustySteel"); m_pSceneManager->getRootSceneNode()->attachObject(ent); } // 将上面的函数执行启动3D画面 void Ckuangjia2View::SetupMFC(void) { SetupResource(); SetupConfig(); CreateRanderWnd();//打错了，render CreateSceneManager(); CreateCamera(); CreateViewPort(); LoadResource(); CreateScene(); CreateFloorPlane(); CreateEntity(); } //添加定时器消息 void Ckuangjia2View::OnTimer(UINT_PTR nIDEvent) { // TODO: 在此添加消息处理程序代码和/或调用默认值 m_pRoot->renderOneFrame(); CFormView::OnTimer(nIDEvent); } //在OnDraw()函数中设置计时器 void Ckuangjia2View::OnDraw(CDC* /*pDC*/) { // TODO: 在此添加专用代码和/或调用基类 if (bHasInit) { SetupMFC(); bHasInit = FALSE; } SetTimer(1,30,NULL); } //摧毁计时器 void Ckuangjia2View::OnDestroy() { CFormView::OnDestroy(); KillTimer(1); // TODO: 在此处添加消息处理程序代码 } //改变窗口大小时更新重绘 void Ckuangjia2View::OnSize(UINT nType, int cx, int cy) { CFormView::OnSize(nType, cx, cy); if (m_pWindow) { CRect rt; GetClientRect(&rt); m_pWindow->windowMovedOrResized(); if (rt.Height() != 0 && m_pCamera != NULL) { m_pCamera->setNearClipDistance(Real(m_pWindow->getWidth())/Real(m_pWindow->getHeight())); } m_pCamera->yaw(Radian(0)); } // TODO: 在此处添加消息处理程序代码 }