C++ (Cpp) CRYPT_SHA1Generate Examples

Example #1

File: fpdf_page_doc.cpp Project: JinAirsOs/pdfium

CPDF_IccProfile* CPDF_DocPageData::GetIccProfile(
    CPDF_Stream* pIccProfileStream) {
  if (!pIccProfileStream)
    return NULL;

  auto it = m_IccProfileMap.find(pIccProfileStream);
  if (it != m_IccProfileMap.end()) {
    return it->second->AddRef();
  }

  CPDF_StreamAcc stream;
  stream.LoadAllData(pIccProfileStream, FALSE);
  uint8_t digest[20];
  CRYPT_SHA1Generate(stream.GetData(), stream.GetSize(), digest);
  auto hash_it = m_HashProfileMap.find(CFX_ByteStringC(digest, 20));
  if (hash_it != m_HashProfileMap.end()) {
    auto it_copied_stream = m_IccProfileMap.find(hash_it->second);
    return it_copied_stream->second->AddRef();
  }
  CPDF_IccProfile* pProfile =
      new CPDF_IccProfile(stream.GetData(), stream.GetSize());
  CPDF_CountedIccProfile* ipData = new CPDF_CountedIccProfile(pProfile);
  m_IccProfileMap[pIccProfileStream] = ipData;
  m_HashProfileMap[CFX_ByteStringC(digest, 20)] = pIccProfileStream;
  return ipData->AddRef();
}

Example #2

File: fpdf_page_doc.cpp Project: Gottox/pdfium

CPDF_IccProfile* CPDF_DocPageData::GetIccProfile(CPDF_Stream* pIccProfileStream, FX_INT32 nComponents)
{
    if (!pIccProfileStream) {
        return NULL;
    }
    CPDF_CountedObject<CPDF_IccProfile*>* ipData = NULL;
    if (m_IccProfileMap.Lookup(pIccProfileStream, ipData)) {
        ipData->m_nCount++;
        return ipData->m_Obj;
    }
    CPDF_StreamAcc stream;
    stream.LoadAllData(pIccProfileStream, FALSE);
    FX_BYTE digest[20];
    CPDF_Stream* pCopiedStream = NULL;
    CRYPT_SHA1Generate(stream.GetData(), stream.GetSize(), digest);
    if (m_HashProfileMap.Lookup(CFX_ByteStringC(digest, 20), (void*&)pCopiedStream)) {
        m_IccProfileMap.Lookup(pCopiedStream, ipData);
        ipData->m_nCount++;
        return ipData->m_Obj;
    }
    CPDF_IccProfile* pProfile = FX_NEW CPDF_IccProfile(stream.GetData(), stream.GetSize(), nComponents);
    if (!pProfile) {
        return NULL;
    }
    ipData = FX_NEW CPDF_CountedObject<CPDF_IccProfile*>;
    if (!ipData) {
        delete pProfile;
        return NULL;
    }
    ipData->m_nCount = 2;
    ipData->m_Obj = pProfile;
    m_IccProfileMap.SetAt(pIccProfileStream, ipData);
    m_HashProfileMap.SetAt(CFX_ByteStringC(digest, 20), pIccProfileStream);
    return pProfile;
}