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JBIG2 - basic reading of segments

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This commit is contained in:
Jakub Melka
2019-10-26 18:02:37 +02:00
parent ee4e21320e
commit abbe7a920a
5 changed files with 385 additions and 6 deletions
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17
PdfForQtLib/sources/pdfimage.cpp
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@@ -20,6 +20,7 @@
#include "pdfconstants.h"
#include "pdfexception.h"
#include "pdfutils.h"
#include "pdfjbig2decoder.h"
#include "pdfccittfaxdecoder.h"
#include <openjpeg.h>
@@ -656,7 +657,21 @@ PDFImage PDFImage::createImage(const PDFDocument* document,
}
else if (imageFilterName == "JBIG2Decode")
{
throw PDFRendererException(RenderErrorType::NotImplemented, PDFTranslationContext::tr("Not implemented image filter 'JBIG2Decode'."));
QByteArray data = document->getDecodedStream(stream);
QByteArray globalData;
if (filterParamsDictionary)
{
const PDFObject& globalDataObject = document->getObject(filterParamsDictionary->get("JBIG2Globals"));
if (globalDataObject.isStream())
{
globalData = document->getDecodedStream(globalDataObject.getStream());
}
}
PDFJBIG2Decoder decoder(qMove(data), qMove(globalData), errorReporter);
decoder.decode();
// TODO: Finish JBIG2 decoder
}
else if (colorSpace || isSoftMask)
{