bool Cssao::Init(unsigned int WindowWidth, unsigned int WindowHeight){
m_noiseScale[0] = WindowWidth / m_noise_size;
m_noiseScale[1] = WindowHeight / m_noise_size;
CreateKernel();
CreateNoise();
//Create FBO
glGenFramebuffers(1, &m_fbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_fbo);
glGenTextures(1, &m_ssaoTexture);
glBindTexture(GL_TEXTURE_2D, m_ssaoTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F, WindowWidth, WindowHeight, 0, GL_RGBA, GL_FLOAT, NULL);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_ssaoTexture, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
GLenum DrawBuffers[] = {GL_COLOR_ATTACHMENT0};
glDrawBuffers(1, DrawBuffers);
GLenum Status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if(Status != GL_FRAMEBUFFER_COMPLETE){
printf("FB error, status 0x%04x", Status);
return false;
}
//Restore default framebuffer
glBindFramebuffer(GL_FRAMEBUFFER, 0);
return true;
}
bool CUserCryptoManager::InitPasswordMode(CFilePage *pPage, const wchar_t *pszPassword)
{
IDBStoragePtr pDBStorage = m_pDB->getDBStorage();
CRandomGenerator::GetRandomValues(m_szSalt, ___nSALT_SIZE);
CRandomGenerator::GetRandomValues(m_szSaltIV, ___nSALT_SIZE);
CommonLib::CString sPWD = pszPassword;
std::vector<byte> vecUtf8PWD;
uint32 nUtf8Len = sPWD.calcUTF8Length();
vecUtf8PWD.resize(nUtf8Len + 1);
sPWD.exportToUTF8((char*)&vecUtf8PWD[0], nUtf8Len);
m_nOffset = CalcOffset(&vecUtf8PWD[0], nUtf8Len, m_szSalt, ___nSALT_SIZE);
m_PageChiper.reset( new CPageCipher( m_qryptoAlg));
m_pCheckPageChiper.reset(new CPageCipher(m_qryptoAlg));
m_PageChiper->SetKey(&vecUtf8PWD[0], nUtf8Len, m_szSalt, m_szSaltIV, ___nSALT_SIZE);
((CStorage*)pDBStorage.get())->setPageChiper(m_PageChiper.get());
m_nPWDPage = CreateCheckPWDPage();
CreateNoise(m_nOffset);
CommonLib::FxMemoryWriteStream stream;
stream.attachBuffer(pPage->getRowData(), pPage->getPageSize());
sFilePageHeader header(stream, DATABASE_PAGE, DB_ROOT_USER_PAGE, pPage->getPageSize(),true);
stream.write((uint16)m_UserMode);
stream.write((uint16)m_qryptoAlg);
stream.write(m_szSalt, ___nSALT_SIZE);
stream.write(m_szSaltIV, ___nSALT_SIZE);
stream.write(m_nPWDPage);
header.writeCRC32(stream);
pPage->setNeedEncrypt(false);
pDBStorage->saveFilePage(pPage);
pDBStorage->SetOffset(m_nOffset);
m_bPWDCheck = true;
return true;
}
int64 CDatabase::InitCrypto(byte* pPWD, uint32 nLen)
{
CRandomGenerator::GetRandomValues(m_dbHeader.szSalt, sDBHeader::SALT_SIZE);
CRandomGenerator::GetRandomValues(m_dbHeader.szSaltIV, sDBHeader::SALT_SIZE);
int64 nOffset = CalcOffset(pPWD, nLen, m_dbHeader.szSalt, sDBHeader::SALT_SIZE);
m_PageChiper.reset( new CPageCipher(m_DBParams.qryptoAlg));
m_PageChiper->SetKey(pPWD, nLen, m_dbHeader.szSalt, m_dbHeader.szSaltIV, sDBHeader::SALT_SIZE);
((CStorage*)m_pStorage.get())->setPageChiper(m_PageChiper.get());
CreateCheckPWDPage();
CreateNoise(nOffset);
return nOffset;
}
