把.pvr.ccz文件转换成png

我用的是一个万能转换法，原理是先用CCSprite加载.pvr.ccz，然后把它绘制到一个CCRenderTexture上，然后再保存到文件里。这方法其实不只.pvr.ccz文件，其他所有能被cocos2dx直接加载的文件都可以用这种转换。有个弊端就是可能跟源文件数据稍有些差异(我这个就是看起来有点白边)。

用法是：比如有个文件夹叫Image,里面有个文件叫1.pvr.ccz。把Image文件夹拖拽到PngConverter.exe图标上。然后会在Image的旁边生成一个文件夹叫Image_png(里面有个文件叫1.png)

注意：目录不能带中文！！！！

生成的png文件名字不全的bug已经修正。

点击下载

最近发现有些不道德行为，转载请注明出处：http://www.cnblogs.com/mrblue/p/3420189.html

附上关键源码

bool HelloWorld::init()

{

    //////////////////////////////

    // 1. super init first

    if ( !CCLayer::init() )

    {

        return false;

    }

    

    CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize();

    CCPoint origin = CCDirector::sharedDirector()->getVisibleOrigin();



    CCLabelTTF* pLabel = CCLabelTTF::create("Hello World", "Arial", 24);



    // position the label on the center of the screen

    pLabel->setPosition(ccp(origin.x + visibleSize.width/2,

        origin.y + visibleSize.height - pLabel->getContentSize().height));

    this->addChild(pLabel, 1);



    {//convert

        const char* pszSuffix = ".pvr.ccz";



        int nStartPos = -1;

        while ( nStartPos=g_Param.find('\\',nStartPos+1),-1!=nStartPos )

        {

            g_Param.replace(nStartPos,1,"/");

        }



        std::string strFileFilter = g_Param+"/*"+pszSuffix;



        _finddata_t fileDir;

        long lfDir;





        if((lfDir = _findfirst(strFileFilter.c_str(),&fileDir))==-1l)

        {

            char szMsg[128] = {0};

            sprintf(szMsg,"Please drag a folder which contains \"%s\" files onto this application's icon" ,pszSuffix);

            pLabel->setString(szMsg);

        }

        else

        {

            std::string strSaveFolderPath = g_Param+"_png/";



            BOOL ret = CreateDirectoryA(strSaveFolderPath.c_str(), NULL);

            if (!ret && ERROR_ALREADY_EXISTS != GetLastError())

            {

                CC_ASSERT(false);

            }



            int nFileNum = 0;

            do

            {

                std::string strFileName = fileDir.name;

                std::string strFilePath = g_Param+'/'+strFileName;



                CCSprite *img = CCSprite::create(strFilePath.c_str());

                img->setPosition(ccp(0,0));

                img->setAnchorPoint(ccp(0,0));

                CCSize sz = img->getContentSize();

                

                CCRenderTexture* pRT = CCRenderTexture::create(sz.width, sz.height, kCCTexture2DPixelFormat_RGBA8888);

                pRT->clear(1,1,1,0);

                pRT->begin();

                img->visit();

                pRT->end();



                std::string strSaveFile = strFileName.substr(0,strFileName.rfind(pszSuffix));

                strSaveFile+=".png";

                std::string strSaveFullPath = strSaveFolderPath+strSaveFile;



                CCImage *pImage = pRT->newCCImage(true);

                pImage->saveToFile(strSaveFullPath.c_str(), false);

                CC_SAFE_DELETE(pImage);



                CCLOG("%s",fileDir.name);

                

                nFileNum++;



            }while( _findnext( lfDir, &fileDir ) == 0 );



            char szMsg[128] = {0};

            sprintf(szMsg,"%d files have been converted",nFileNum);

            pLabel->setString(szMsg);

        }

    }





    return true;

}