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qpdf/libqpdf/qpdf/Pl_TIFFPredictor.hh
Jay Berkenbilt a68703b07e Replace PointerHolder with std::shared_ptr in library sources only
(patrepl and cleanpatch are my own utilities)

patrepl s/PointerHolder/std::shared_ptr/g {include,libqpdf}/qpdf/*.hh
patrepl s/PointerHolder/std::shared_ptr/g libqpdf/*.cc
patrepl s/make_pointer_holder/std::make_shared/g libqpdf/*.cc
patrepl s/make_array_pointer_holder/QUtil::make_shared_array/g libqpdf/*.cc
patrepl s,qpdf/std::shared_ptr,qpdf/PointerHolder, **/*.cc **/*.hh
git restore include/qpdf/PointerHolder.hh
cleanpatch
./format-code
2022-04-09 17:33:29 -04:00

43 lines
956 B
C++

#ifndef PL_TIFFPREDICTOR_HH
#define PL_TIFFPREDICTOR_HH
// This pipeline reverses the application of a TIFF predictor as
// described in the TIFF specification.
#include <qpdf/Pipeline.hh>
class Pl_TIFFPredictor: public Pipeline
{
public:
enum action_e { a_encode, a_decode };
QPDF_DLL
Pl_TIFFPredictor(
char const* identifier,
Pipeline* next,
action_e action,
unsigned int columns,
unsigned int samples_per_pixel = 1,
unsigned int bits_per_sample = 8);
QPDF_DLL
virtual ~Pl_TIFFPredictor();
QPDF_DLL
virtual void write(unsigned char* data, size_t len);
QPDF_DLL
virtual void finish();
private:
void processRow();
action_e action;
unsigned int columns;
unsigned int bytes_per_row;
unsigned int samples_per_pixel;
unsigned int bits_per_sample;
std::shared_ptr<unsigned char> cur_row;
size_t pos;
};
#endif // PL_TIFFPREDICTOR_HH