예제 #1
0
void CPDF_StreamContentParser::EndImageDict()
{
    if (m_StringBuf.GetSize() != m_LastImageDict.GetSize() ||
            FXSYS_memcmp32(m_StringBuf.GetBuffer(), m_LastImageDict.GetBuffer(), m_StringBuf.GetSize())) {
        m_WordState = 0;
        StartDict();
        InputData(m_StringBuf.GetBuffer(), m_StringBuf.GetSize());
        Finish();
        m_bSameLastDict = FALSE;
        if (m_pLastImageDict && m_bReleaseLastDict) {
            m_pLastImageDict->Release();
            m_pLastImageDict = NULL;
        }
        if (!m_ObjectSize) {
            m_InlineImageState = 0;
            return;
        }
        m_pLastImageDict = (CPDF_Dictionary*)m_pObjectStack[--m_ObjectSize];
        m_bReleaseLastDict = !m_pObjectState[m_ObjectSize];
        m_pObjectState[m_ObjectSize] = FALSE;
        _PDF_ReplaceAbbr(m_pLastImageDict);
        m_LastImageDict.TakeOver(m_StringBuf);
        if (m_pLastImageDict->KeyExist(FX_BSTRC("ColorSpace"))) {
            CPDF_Object* pCSObj = m_pLastImageDict->GetElementValue(FX_BSTRC("ColorSpace"));
            if (pCSObj->GetType() == PDFOBJ_NAME) {
                CFX_ByteString name = pCSObj->GetString();
                if (name != FX_BSTRC("DeviceRGB") && name != FX_BSTRC("DeviceGray") && name != FX_BSTRC("DeviceCMYK")) {
                    pCSObj = FindResourceObj(FX_BSTRC("ColorSpace"), name);
                    if (pCSObj) {
                        if (!pCSObj->GetObjNum()) {
                            pCSObj = pCSObj->Clone();
                        }
                        m_pLastImageDict->SetAt(FX_BSTRC("ColorSpace"), pCSObj, m_pDocument);
                    }
                }
            }
        }
    } else {
        m_bSameLastDict = TRUE;
    }
    m_ImageSrcBuf.Clear();
    if (m_pLastCloneImageDict) {
        m_pLastCloneImageDict->Release();
    }
    m_pLastCloneImageDict = (CPDF_Dictionary*)m_pLastImageDict->Clone();
    if (m_pLastCloneImageDict->KeyExist(FX_BSTRC("Filter"))) {
        m_WordState = 10;
        m_InlineImageState = 0;
    } else {
        int width = m_pLastCloneImageDict->GetInteger(FX_BSTRC("Width"));
        int height = m_pLastCloneImageDict->GetInteger(FX_BSTRC("Height"));
        int OrigSize = 0;
        CPDF_Object* pCSObj = m_pLastCloneImageDict->GetElementValue(FX_BSTRC("ColorSpace"));
        if (pCSObj != NULL) {
            int bpc = m_pLastCloneImageDict->GetInteger(FX_BSTRC("BitsPerComponent"));
            int nComponents = 1;
            CPDF_ColorSpace* pCS = m_pDocument->LoadColorSpace(pCSObj);
            if (pCS == NULL) {
                nComponents = 3;
            } else {
                nComponents = pCS->CountComponents();
                m_pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
            }
            int pitch = (width * bpc * nComponents + 7) / 8;
            OrigSize = pitch * height;
        } else {
            OrigSize = ((width + 7) / 8) * height;
        }
        m_ImageSrcBuf.AppendBlock(NULL, OrigSize);
        m_WordState = 11;
        m_InlineImageState = 0;
    }
}
예제 #2
0
void CPDF_StreamContentParser::Handle_BeginImage()
{
    FX_FILESIZE savePos = m_pSyntax->GetPos();
    CPDF_Dictionary* pDict = CPDF_Dictionary::Create();
    while (1) {
        CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
        if (type == CPDF_StreamParser::Keyword) {
            CFX_ByteString bsKeyword(m_pSyntax->GetWordBuf(), m_pSyntax->GetWordSize());
            if (bsKeyword != FX_BSTRC("ID")) {
                m_pSyntax->SetPos(savePos);
                pDict->Release();
                return;
            }
        }
        if (type != CPDF_StreamParser::Name) {
            break;
        }
        CFX_ByteString key((const FX_CHAR*)m_pSyntax->GetWordBuf() + 1, m_pSyntax->GetWordSize() - 1);
        CPDF_Object* pObj = m_pSyntax->ReadNextObject();
        if (!key.IsEmpty()) {
            pDict->SetAt(key, pObj, m_pDocument);
        } else if (pObj) {
            pObj->Release();
        }
    }
    _PDF_ReplaceAbbr(pDict);
    CPDF_Object* pCSObj = NULL;
    if (pDict->KeyExist(FX_BSTRC("ColorSpace"))) {
        pCSObj = pDict->GetElementValue(FX_BSTRC("ColorSpace"));
        if (pCSObj->GetType() == PDFOBJ_NAME) {
            CFX_ByteString name = pCSObj->GetString();
            if (name != FX_BSTRC("DeviceRGB") && name != FX_BSTRC("DeviceGray") && name != FX_BSTRC("DeviceCMYK")) {
                pCSObj = FindResourceObj(FX_BSTRC("ColorSpace"), name);
                if (pCSObj && !pCSObj->GetObjNum()) {
                    pCSObj = pCSObj->Clone();
                    pDict->SetAt(FX_BSTRC("ColorSpace"), pCSObj, m_pDocument);
                }
            }
        }
    }
    CPDF_Stream* pStream = m_pSyntax->ReadInlineStream(m_pDocument, pDict, pCSObj, m_Options.m_bDecodeInlineImage);
    while (1) {
        CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
        if (type == CPDF_StreamParser::EndOfData) {
            break;
        }
        if (type != CPDF_StreamParser::Keyword) {
            continue;
        }
        if (m_pSyntax->GetWordSize() == 2 && m_pSyntax->GetWordBuf()[0] == 'E' &&
                m_pSyntax->GetWordBuf()[1] == 'I') {
            break;
        }
    }
    if (m_Options.m_bTextOnly) {
        if (pStream) {
            pStream->Release();
        } else {
            pDict->Release();
        }
        return;
    }
    pDict->SetAtName(FX_BSTRC("Subtype"), FX_BSTRC("Image"));
    CPDF_ImageObject *pImgObj = AddImage(pStream, NULL, TRUE);
    if (!pImgObj) {
        if (pStream) {
            pStream->Release();
        } else {
            pDict->Release();
        }
    }
}