当前位置: 首页>>代码示例>>C++>>正文


C++ TiffEntry::setData方法代码示例

本文整理汇总了C++中TiffEntry::setData方法的典型用法代码示例。如果您正苦于以下问题:C++ TiffEntry::setData方法的具体用法?C++ TiffEntry::setData怎么用?C++ TiffEntry::setData使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在TiffEntry的用法示例。


在下文中一共展示了TiffEntry::setData方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: getDecoder

RawDecoder* RawParser::getDecoder(CameraMetaData* meta) {
  const unsigned char* data = mInput->getData(0);
  // We need some data.
  // For now it is 104 bytes for RAF images.
  if (mInput->getSize() <=  104)
    ThrowRDE("File too small");

  // MRW images are easy to check for, let's try that first
  if (MrwDecoder::isMRW(mInput)) {
    try {
      return new MrwDecoder(mInput);
    } catch (RawDecoderException) {
    }
  }

  if (0 == memcmp(&data[0], "ARRI\x12\x34\x56\x78", 8)) {
    try {
      return new AriDecoder(mInput);
    } catch (RawDecoderException) {
    }
  }

  // FUJI has pointers to IFD's at fixed byte offsets
  // So if camera is FUJI, we cannot use ordinary TIFF parser
  if (0 == memcmp(&data[0], "FUJIFILM", 8)) {
    // First IFD typically JPEG and EXIF
    uint32 first_ifd = data[87] | (data[86]<<8) | (data[85]<<16) | (data[84]<<24);
    first_ifd += 12;
    if (mInput->getSize() <=  first_ifd)
      ThrowRDE("File too small (FUJI first IFD)");

    // RAW IFD on newer, pointer to raw data on older models, so we try parsing first
    // And adds it as data if parsin fails
    uint32 second_ifd = (uint32)data[103] | (data[102]<<8) | (data[101]<<16) | (data[100]<<24);
    if (mInput->getSize() <=  second_ifd)
      second_ifd = 0;

    // RAW information IFD on older
    uint32 third_ifd = data[95] | (data[94]<<8) | (data[93]<<16) | (data[92]<<24);
    if (mInput->getSize() <=  third_ifd)
      third_ifd = 0;

    // Open the IFDs and merge them
    try {
      FileMap *m1 = new FileMap(mInput->getDataWrt(first_ifd), mInput->getSize()-first_ifd);
      FileMap *m2 = NULL;
      TiffParser p(m1);
      p.parseData();
      if (second_ifd) {
        m2 = new FileMap(mInput->getDataWrt(second_ifd), mInput->getSize()-second_ifd);
        try {
          TiffParser p2(m2);
          p2.parseData();
          p.MergeIFD(&p2);
        } catch (TiffParserException e) {
          delete m2;
          m2 = NULL;
       }
      }

      TiffIFD *new_ifd = new TiffIFD(mInput);
      p.RootIFD()->mSubIFD.push_back(new_ifd);

      if (third_ifd) {
        try {
          ParseFuji(third_ifd, new_ifd);
        } catch (TiffParserException e) {
        }
      }
      // Make sure these aren't leaked.
      RawDecoder *d = p.getDecoder();
      d->ownedObjects.push_back(m1);
      if (m2)
        d->ownedObjects.push_back(m2);

      if (!m2 && second_ifd) {
        TiffEntry *entry = new TiffEntry(FUJI_STRIPOFFSETS, TIFF_LONG, 1);
        entry->setData(&second_ifd, 4);
        new_ifd->mEntry[entry->tag] = entry;
        entry = new TiffEntry(FUJI_STRIPBYTECOUNTS, TIFF_LONG, 1);
        uint32 max_size = mInput->getSize()-second_ifd;
        entry->setData(&max_size, 4);
        new_ifd->mEntry[entry->tag] = entry;
      }
      return d;
    } catch (TiffParserException) {}
    ThrowRDE("No decoder found. Sorry.");
  }

  // Ordinary TIFF images
  try {
    TiffParser p(mInput);
    p.parseData();
    return p.getDecoder();
  } catch (TiffParserException) {}

  try {
    X3fParser parser(mInput);
    return parser.getDecoder();
  } catch (RawDecoderException) {
//.........这里部分代码省略.........
开发者ID:ChunHungLiu,项目名称:PhotoFlow,代码行数:101,代码来源:RawParser.cpp


注:本文中的TiffEntry::setData方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。