C++ xfile::auto_buffer类代码示例

bool CBaseTexture::LoadFromFileInternal(const std::string& texturePath, unsigned int maxWidth, unsigned int maxHeight, bool autoRotate, bool requirePixels, const std::string& strMimeType)
{
  if (URIUtils::HasExtension(texturePath, ".dds"))
  { // special case for DDS images
    CDDSImage image;
    if (image.ReadFile(texturePath))
    {
      Update(image.GetWidth(), image.GetHeight(), 0, image.GetFormat(), image.GetData(), false);
      return true;
    }
    return false;
  }

  unsigned int width = maxWidth ? std::min(maxWidth, g_Windowing.GetMaxTextureSize()) : g_Windowing.GetMaxTextureSize();
  unsigned int height = maxHeight ? std::min(maxHeight, g_Windowing.GetMaxTextureSize()) : g_Windowing.GetMaxTextureSize();

  // Read image into memory to use our vfs
  XFILE::CFile file;
  XFILE::auto_buffer buf;

  if (file.LoadFile(texturePath, buf) <= 0)
    return false;

  CURL url(texturePath);
  // make sure resource:// paths are properly resolved
  if (url.IsProtocol("resource"))
  {
    std::string translatedPath;
    if (XFILE::CResourceFile::TranslatePath(url, translatedPath))
      url.Parse(translatedPath);
  }

  // handle xbt:// paths differently because it allows loading the texture directly from memory
  if (url.IsProtocol("xbt"))
  {
    XFILE::CXbtFile xbtFile;
    if (!xbtFile.Open(url))
      return false;

    return LoadFromMemory(xbtFile.GetImageWidth(), xbtFile.GetImageHeight(), 0, xbtFile.GetImageFormat(),
                          xbtFile.HasImageAlpha(), reinterpret_cast<unsigned char*>(buf.get()));
  }

  IImage* pImage;

  if(strMimeType.empty())
    pImage = ImageFactory::CreateLoader(texturePath);
  else
    pImage = ImageFactory::CreateLoaderFromMimeType(strMimeType);

  if (!LoadIImage(pImage, (unsigned char *)buf.get(), buf.size(), width, height, autoRotate))
  {
    CLog::Log(LOGDEBUG, "%s - Load of %s failed.", __FUNCTION__, texturePath.c_str());
    delete pImage;
    return false;
  }
  delete pImage;

  return true;
}

void CGUIDialogAddonInfo::OnJobComplete(unsigned int jobID, bool success,
                                        CJob* job)
{
  if (!m_changelog)
    return;

  CGUIDialogTextViewer* pDlgInfo = (CGUIDialogTextViewer*)g_windowManager.GetWindow(WINDOW_DIALOG_TEXT_VIEWER);

  m_jobid = 0;
  if (!success)
  {
    pDlgInfo->SetText(g_localizeStrings.Get(195));
  }
  else
  {
    CFile file;
    XFILE::auto_buffer buf;
    if (file.LoadFile("special://temp/" +
      URIUtils::GetFileName(((CFileOperationJob*)job)->GetItems()[0]->GetPath()), buf) > 0)
    {
      std::string str(buf.get(), buf.length());
      m_item->SetProperty("Addon.Changelog", str);
      pDlgInfo->SetText(str);
    }
  }
  CGUIMessage msg(GUI_MSG_NOTIFY_ALL, WINDOW_DIALOG_TEXT_VIEWER, 0, GUI_MSG_UPDATE);
  g_windowManager.SendThreadMessage(msg);
}

bool CPODocument::LoadFile(const std::string &pofilename)
{
  CURL poFileUrl(pofilename);
  if (!XFILE::CFile::Exists(poFileUrl))
    return false;

  XFILE::CFile file;
  XFILE::auto_buffer buf;
  if (file.LoadFile(poFileUrl, buf) < 18) // at least a size of a minimalistic header
  {
    CLog::Log(LOGERROR, "%s: can't load file \"%s\" or file is too small", __FUNCTION__,  pofilename.c_str());
    return false;
  }
  
  m_strBuffer = '\n';
  m_strBuffer.append(buf.get(), buf.size());
  buf.clear();

  ConvertLineEnds(pofilename);

  // we make sure, to have an LF at the end of buffer
  if (*m_strBuffer.rbegin() != '\n')
  {
    m_strBuffer += "\n";
  }

  m_POfilelength = m_strBuffer.size();

  if (GetNextEntry() && m_Entry.Type == MSGID_FOUND)
    return true;

  CLog::Log(LOGERROR, "POParser: unable to read PO file header from file: %s", pofilename.c_str());
  return false;
}

bool CXBMCTinyXML::LoadFile(const std::string& _filename, TiXmlEncoding encoding)
{
  value = _filename.c_str();

  XFILE::CFile file;
  XFILE::auto_buffer buffer;

  if (file.LoadFile(value, buffer) <= 0)
  {
    SetError(TIXML_ERROR_OPENING_FILE, NULL, NULL, TIXML_ENCODING_UNKNOWN);
    return false;
  }

  // Delete the existing data:
  Clear();
  location.Clear();

  std::string data(buffer.get(), buffer.length());
  buffer.clear(); // free memory early

  if (encoding == TIXML_ENCODING_UNKNOWN)
    Parse(data, file.GetContentCharset());
  else
    Parse(data, encoding);

  if (Error())
    return false;
  return true;
}

bool CWebServer::LoadCert(std::string &skey, std::string &scert)
{
  XFILE::CFile file;
  XFILE::auto_buffer buf;
  const char* keyFile = "special://userdata/server.key";
  const char* certFile = "special://userdata/server.pem";

  if (!file.Exists(keyFile) || !file.Exists(certFile))
    return false;

  if (file.LoadFile(keyFile, buf) > 0)
  {
    skey.resize(buf.length());
    skey.assign(buf.get());
    file.Close();
  }
  else
    CLog::Log(LOGDEBUG, "WebServer %s: Error loading: %s", __FUNCTION__, keyFile);

  if (file.LoadFile(certFile, buf) > 0)
  {
    scert.resize(buf.length());
    scert.assign(buf.get());
    file.Close();
  }
  else
    CLog::Log(LOGDEBUG, "WebServer %s: Error loading: %s", __FUNCTION__, certFile);

  if (!skey.empty() && !scert.empty())
  {
    CLog::Log(LOGERROR, "WebServer %s: found server key: %s, certificate: %s, HTTPS support enabled", __FUNCTION__, keyFile, certFile);
    return true;
  }
  return false;
}

unsigned int CFileUtils::LoadFile(const std::string &filename, void* &outputBuffer)
{
  XFILE::auto_buffer buffer;
  XFILE::CFile file;

  const unsigned int total_read = file.LoadFile(filename, buffer);
  outputBuffer = buffer.detach();

  return total_read;
}

int CNfoFile::Load(const std::string& strFile)
{
  Close();
  XFILE::CFile file;
  XFILE::auto_buffer buf;
  if (file.LoadFile(strFile, buf) > 0)
  {
    m_doc.assign(buf.get(), buf.size());
    m_headPos = 0;
    return 0;
  }
  m_doc.clear();
  return 1;
}

std::string CSysInfo::GetPrivacyPolicy()
{
  if (m_privacyPolicy.empty())
  {
    CFile file;
    XFILE::auto_buffer buf;
    if (file.LoadFile("special://xbmc/privacy-policy.txt", buf) > 0)
    {
      std::string strBuf(buf.get(), buf.length());
      m_privacyPolicy = strBuf;
    }
    else
      m_privacyPolicy = g_localizeStrings.Get(19055);
  }
  return m_privacyPolicy;
}

bool CJpegIO::Open(const CStdString &texturePath, unsigned int minx, unsigned int miny, bool read)
{
  Close();

  m_texturePath = texturePath;

  XFILE::CFile file;
  XFILE::auto_buffer buf;
  if (file.LoadFile(texturePath, buf) <= 0)
    return false;

  m_inputBuffSize = buf.size();
  m_inputBuff = (unsigned char*)buf.detach();

  return Read(m_inputBuff, m_inputBuffSize, minx, miny);
}

bool CBaseTexture::LoadFromFileInternal(const std::string& texturePath, unsigned int maxWidth, unsigned int maxHeight, bool autoRotate, bool requirePixels, const std::string& strMimeType)
{
  if (URIUtils::HasExtension(texturePath, ".dds"))
  { // special case for DDS images
    CDDSImage image;
    if (image.ReadFile(texturePath))
    {
      Update(image.GetWidth(), image.GetHeight(), 0, image.GetFormat(), image.GetData(), false);
      return true;
    }
    return false;
  }

  unsigned int width = maxWidth ? std::min(maxWidth, g_Windowing.GetMaxTextureSize()) : g_Windowing.GetMaxTextureSize();
  unsigned int height = maxHeight ? std::min(maxHeight, g_Windowing.GetMaxTextureSize()) : g_Windowing.GetMaxTextureSize();

  // Read image into memory to use our vfs
  XFILE::CFile file;
  XFILE::auto_buffer buf;

  if (file.LoadFile(texturePath, buf) <= 0)
    return false;

  IImage* pImage;

  if(strMimeType.empty())
    pImage = ImageFactory::CreateLoader(texturePath);
  else
    pImage = ImageFactory::CreateLoaderFromMimeType(strMimeType);

  if (!LoadIImage(pImage, (unsigned char *)buf.get(), buf.size(), width, height, autoRotate))
  {
    delete pImage;
    pImage = ImageFactory::CreateFallbackLoader(texturePath);
    if (!LoadIImage(pImage, (unsigned char *)buf.get(), buf.size(), width, height))
    {
      CLog::Log(LOGDEBUG, "%s - Load of %s failed.", __FUNCTION__, texturePath.c_str());
      delete pImage;
      return false;
    }
  }
  delete pImage;

  return true;
}

std::vector< CStdString > CKaraokeLyricsTextUStar::readFile(const CStdString & lyricsFile, bool report_errors )
{
  std::vector< CStdString > lines;

  XFILE::CFile file;
  XFILE::auto_buffer buf;

  if (file.LoadFile(lyricsFile, buf) <= 0)
  {
    if (report_errors)
      CLog::Log(LOGERROR, "%s: can't load \"%s\" file", __FUNCTION__, lyricsFile.c_str());

    return std::vector< CStdString >();
  }
  file.Close();

  const size_t lyricSize = buf.size();

  // Parse into the string array
  size_t offset = 0;
  size_t lineoffset = 0;

  while ( offset < lyricSize )
  {
    // End of line?
    if (buf.get()[offset] == 0x0D || buf.get()[offset] == 0x0A)
    {
      // An empty line?
      if ( lineoffset != offset )
        lines.push_back(std::string(buf.get() + lineoffset, offset - lineoffset));

      // Point to the next symbol
      lineoffset = offset + 1;
    }

    offset++;
  }

  // Last line, if any
  if ( lineoffset < lyricSize )
    lines.push_back(std::string(buf.get() + lineoffset, buf.size() - lineoffset));

  return lines;
}

bool CScraperUrl::Get(const SUrlEntry& scrURL, std::string& strHTML, XFILE::CCurlFile& http, const CStdString& cacheContext)
{
  CURL url(scrURL.m_url);
  http.SetReferer(scrURL.m_spoof);
  CStdString strCachePath;

  if (scrURL.m_isgz)
    http.SetContentEncoding("gzip");

  if (!scrURL.m_cache.empty())
  {
    strCachePath = URIUtils::AddFileToFolder(g_advancedSettings.m_cachePath,
                              "scrapers/" + cacheContext + "/" + scrURL.m_cache);
    if (XFILE::CFile::Exists(strCachePath))
    {
      XFILE::CFile file;
      XFILE::auto_buffer buffer;
      if (file.LoadFile(strCachePath, buffer))
      {
        strHTML.assign(buffer.get(), buffer.length());
        return true;
      }
    }
  }

  CStdString strHTML1(strHTML);

  if (scrURL.m_post)
  {
    CStdString strOptions = url.GetOptions();
    strOptions = strOptions.substr(1);
    url.SetOptions("");

    if (!http.Post(url.Get(), strOptions, strHTML1))
      return false;
  }
  else
    if (!http.Get(url.Get(), strHTML1))
      return false;

  strHTML = strHTML1;

  std::string mimeType(http.GetMimeType());
  CMime::EFileType ftype = CMime::GetFileTypeFromMime(mimeType);
  if (ftype == CMime::FileTypeUnknown)
    ftype = CMime::GetFileTypeFromContent(strHTML);

  if (ftype == CMime::FileTypeZip || ftype == CMime::FileTypeGZip)
  {
    XFILE::CZipFile file;
    std::string strBuffer;
    int iSize = file.UnpackFromMemory(strBuffer,strHTML,scrURL.m_isgz); // FIXME: use FileTypeGZip instead of scrURL.m_isgz?
    if (iSize > 0)
    {
      strHTML = strBuffer;
      CLog::Log(LOGDEBUG, "%s: Archive \"%s\" was unpacked in memory", __FUNCTION__, scrURL.m_url.c_str());
    }
    else
      CLog::Log(LOGWARNING, "%s: \"%s\" looks like archive, but cannot be unpacked", __FUNCTION__, scrURL.m_url.c_str());
  }

  std::string reportedCharset(http.GetServerReportedCharset());
  if (ftype == CMime::FileTypeHtml)
  {
    std::string realHtmlCharset, converted;
    if (!CCharsetDetection::ConvertHtmlToUtf8(strHTML, converted, reportedCharset, realHtmlCharset))
      CLog::Log(LOGWARNING, "%s: Can't find precise charset for HTML \"%s\", using \"%s\" as fallback", __FUNCTION__, scrURL.m_url.c_str(), realHtmlCharset.c_str());
    else
      CLog::Log(LOGDEBUG, "%s: Using \"%s\" charset for HTML \"%s\"", __FUNCTION__, realHtmlCharset.c_str(), scrURL.m_url.c_str());

    strHTML = converted;
  }
  else if (ftype == CMime::FileTypeXml)
  {
    CXBMCTinyXML xmlDoc;
    xmlDoc.Parse(strHTML, reportedCharset);
    
    std::string realXmlCharset(xmlDoc.GetUsedCharset());
    if (!realXmlCharset.empty())
    {
      CLog::Log(LOGDEBUG, "%s: Using \"%s\" charset for XML \"%s\"", __FUNCTION__, realXmlCharset.c_str(), scrURL.m_url.c_str());
      std::string converted;
      g_charsetConverter.ToUtf8(realXmlCharset, strHTML, converted);
      strHTML = converted;
    }
  }
  else if (ftype == CMime::FileTypePlainText || StringUtils::CompareNoCase(mimeType.substr(0, 5), "text/") == 0)
  {
    std::string realTextCharset, converted;
    CCharsetDetection::ConvertPlainTextToUtf8(strHTML, converted, reportedCharset, realTextCharset);
    strHTML = converted;
    if (reportedCharset != realTextCharset)
      CLog::Log(LOGWARNING, "%s: Using \"%s\" charset for plain text \"%s\" instead of server reported \"%s\" charset", __FUNCTION__, realTextCharset.c_str(), scrURL.m_url.c_str(), reportedCharset.c_str());
    else
      CLog::Log(LOGDEBUG, "%s: Using \"%s\" charset for plain text \"%s\"", __FUNCTION__, realTextCharset.c_str(), scrURL.m_url.c_str());
  }
  else if (!reportedCharset.empty())
  {
    CLog::Log(LOGDEBUG, "%s: Using \"%s\" charset for \"%s\"", __FUNCTION__, reportedCharset.c_str(), scrURL.m_url.c_str());
    if (reportedCharset != "UTF-8")
//.........这里部分代码省略.........

const CTextureArray& CGUITextureManager::Load(const std::string& strTextureName, bool checkBundleOnly /*= false */)
{
    std::string strPath;
    static CTextureArray emptyTexture;
    int bundle = -1;
    int size = 0;
    if (!HasTexture(strTextureName, &strPath, &bundle, &size))
        return emptyTexture;

    if (size) // we found the texture
    {
        for (int i = 0; i < (int)m_vecTextures.size(); ++i)
        {
            CTextureMap *pMap = m_vecTextures[i];
            if (pMap->GetName() == strTextureName)
            {
                //CLog::Log(LOGDEBUG, "Total memusage %u", GetMemoryUsage());
                return pMap->GetTexture();
            }
        }
        // Whoops, not there.
        return emptyTexture;
    }

    for (ilistUnused i = m_unusedTextures.begin(); i != m_unusedTextures.end(); ++i)
    {
        CTextureMap* pMap = i->first;
        if (pMap->GetName() == strTextureName && i->second > 0)
        {
            m_vecTextures.push_back(pMap);
            m_unusedTextures.erase(i);
            return pMap->GetTexture();
        }
    }

    if (checkBundleOnly && bundle == -1)
        return emptyTexture;

    //Lock here, we will do stuff that could break rendering
    CSingleLock lock(g_graphicsContext);

#ifdef _DEBUG_TEXTURES
    int64_t start;
    start = CurrentHostCounter();
#endif

    if (bundle >= 0 && StringUtils::EndsWithNoCase(strPath, ".gif"))
    {
        CTextureMap* pMap = nullptr;
        CBaseTexture **pTextures = nullptr;
        int nLoops = 0, width = 0, height = 0;
        int* Delay = nullptr;
        int nImages = m_TexBundle[bundle].LoadAnim(strTextureName, &pTextures, width, height, nLoops, &Delay);
        if (!nImages)
        {
            CLog::Log(LOGERROR, "Texture manager unable to load bundled file: %s", strTextureName.c_str());
            delete[] pTextures;
            delete[] Delay;
            return emptyTexture;
        }

        unsigned int maxWidth = 0;
        unsigned int maxHeight = 0;
        pMap = new CTextureMap(strTextureName, width, height, nLoops);
        for (int iImage = 0; iImage < nImages; ++iImage)
        {
            pMap->Add(pTextures[iImage], Delay[iImage]);
            maxWidth = std::max(maxWidth, pTextures[iImage]->GetWidth());
            maxHeight = std::max(maxHeight, pTextures[iImage]->GetHeight());
        }

        pMap->SetWidth((int)maxWidth);
        pMap->SetHeight((int)maxHeight);

        delete[] pTextures;
        delete[] Delay;

        if (pMap)
        {
            m_vecTextures.push_back(pMap);
            return pMap->GetTexture();
        }
    }
    else if (StringUtils::EndsWithNoCase(strPath, ".gif") ||
             StringUtils::EndsWithNoCase(strPath, ".apng"))
    {
        CTextureMap* pMap = nullptr;

        std::string mimeType;
        if (StringUtils::EndsWithNoCase(strPath, ".gif"))
            mimeType = "image/gif";
        else if (StringUtils::EndsWithNoCase(strPath, ".apng"))
            mimeType = "image/apng";

        XFILE::CFile file;
        XFILE::auto_buffer buf;
        CFFmpegImage anim(mimeType);
        pMap = new CTextureMap(strTextureName, 0, 0, 0);

        if (file.LoadFile(strPath, buf) <= 0 ||
//.........这里部分代码省略.........

bool CKaraokeLyricsTextLRC::Load()
{
  XFILE::CFile file;

  // Clear the lyrics array
  clearLyrics();

  XFILE::auto_buffer buf;
  if (file.LoadFile(m_lyricsFile, buf) <= 0)
  {
    CLog::Log(LOGERROR, "%s: can't load \"%s\" file", __FUNCTION__, m_lyricsFile.c_str());
    return false;
  }

  file.Close();

  // Parse the correction value
  int timing_correction = MathUtils::round_int( g_advancedSettings.m_karaokeSyncDelayLRC * 10 );

  unsigned int offset = 0;

  CStdString songfilename = getSongFile();

  // Skip windoze UTF8 file prefix, if any, and reject UTF16 files
  if (buf.size() > 3)
  {
    if ((unsigned char)buf.get()[0] == 0xFF && (unsigned char)buf.get()[1] == 0xFE)
    {
      CLog::Log( LOGERROR, "LRC lyric loader: lyrics file is in UTF16 encoding, must be in UTF8" );
      return false;
    }

    // UTF8 prefix added by some windoze apps
    if ((unsigned char)buf.get()[0] == 0xEF && (unsigned char)buf.get()[1] == 0xBB && (unsigned char)buf.get()[2] == 0xBF)
      offset = 3;
  }

  if (checkMultiTime(buf.get() + offset, buf.size() - offset))
    return ParserMultiTime(buf.get() + offset, buf.size() - offset, timing_correction);
  else
    return ParserNormal(buf.get() + offset, buf.size() - offset, timing_correction);
}

bool CScraperUrl::Get(const SUrlEntry& scrURL, std::string& strHTML, XFILE::CCurlFile& http, const CStdString& cacheContext)
{
  CURL url(scrURL.m_url);
  http.SetReferer(scrURL.m_spoof);
  CStdString strCachePath;

  if (scrURL.m_isgz)
    http.SetContentEncoding("gzip");

  if (!scrURL.m_cache.IsEmpty())
  {
    strCachePath = URIUtils::AddFileToFolder(g_advancedSettings.m_cachePath,
                              "scrapers/" + cacheContext + "/" + scrURL.m_cache);
    if (XFILE::CFile::Exists(strCachePath))
    {
      XFILE::CFile file;
      XFILE::auto_buffer buffer;
      if (file.LoadFile(strCachePath, buffer))
      {
        strHTML.assign(buffer.get(), buffer.length());
        return true;
      }
    }
  }

  CStdString strHTML1(strHTML);

  if (scrURL.m_post)
  {
    CStdString strOptions = url.GetOptions();
    strOptions = strOptions.substr(1);
    url.SetOptions("");

    if (!http.Post(url.Get(), strOptions, strHTML1))
      return false;
  }
  else
    if (!http.Get(url.Get(), strHTML1))
      return false;

  strHTML = strHTML1;
  std::string fileCharset(http.GetServerReportedCharset());

  if (scrURL.m_url.Find(".zip") > -1 )
  {
    XFILE::CZipFile file;
    CStdString strBuffer;
    int iSize = file.UnpackFromMemory(strBuffer,strHTML,scrURL.m_isgz);
    if (iSize)
    {
      fileCharset.clear();
      strHTML.clear();
      strHTML.append(strBuffer.c_str(),strBuffer.data()+iSize);
    }
  }

  if (!fileCharset.empty() && fileCharset != "UTF-8")
  {
    std::string converted;
    if (g_charsetConverter.ToUtf8(fileCharset, strHTML, converted) && !converted.empty())
      strHTML = converted;
  }

  if (!scrURL.m_cache.IsEmpty())
  {
    CStdString strCachePath = URIUtils::AddFileToFolder(g_advancedSettings.m_cachePath,
                              "scrapers/" + cacheContext + "/" + scrURL.m_cache);
    XFILE::CFile file;
    if (file.OpenForWrite(strCachePath,true))
      file.Write(strHTML.data(),strHTML.size());
    file.Close();
  }
  return true;
}