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JBIG2 - reading text segment

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Jakub Melka
2019-11-02 14:35:12 +01:00
parent 0a8e66b16a
commit 90a757e539
2 changed files with 299 additions and 99 deletions
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21
PdfForQtLib/sources/pdfjbig2decoder.h
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@ -533,8 +533,7 @@ public:
m_pageDefaultPixelValue(0),
m_pageDefaultCompositionOperator(PDFJBIG2BitOperation::Invalid),
m_pageDefaultCompositionOperatorOverriden(false),
m_pageSizeUndefined(false),
m_arithmeticDecoderStates()
m_pageSizeUndefined(false)
{
}
@ -560,13 +559,6 @@ public:
private:
static constexpr const uint32_t MAX_BITMAP_SIZE = 65536;
enum ArithmeticDecoderStates
{
Generic,
Refinement,
EndState
};
/// Processes current data stream (reads all data from the stream, interprets
/// them as segments and processes the segments).
void processStream();
@ -609,16 +601,6 @@ private:
/// Read adaptative pixel template positions, positions, which are not read, are filled with 0
PDFJBIG2ATPositions readATTemplatePixelPositions(int count);
/// Reset arithmetic decoder stats for generic
/// \param templateMode Template mode
/// \param state State to copy from (can be nullptr)
void resetArithmeticStatesGeneric(const uint8_t templateMode, const PDFJBIG2ArithmeticDecoderState* state);
/// Reset arithmetic decoder stats for generic refinement
/// \param templateMode Template mode
/// \param state State to copy from (can be nullptr)
void resetArithmeticStatesGenericRefinement(const uint8_t templateMode, const PDFJBIG2ArithmeticDecoderState* state);
/// Skip segment data
void skipSegment(const PDFJBIG2SegmentHeader& header);
@ -641,7 +623,6 @@ private:
bool m_pageDefaultCompositionOperatorOverriden;
bool m_pageSizeUndefined;
PDFJBIG2Bitmap m_pageBitmap;
std::array<PDFJBIG2ArithmeticDecoderState, EndState> m_arithmeticDecoderStates;
};
} // namespace pdf