#include <qpdf/Pl_Discard.hh>

#include <qpdf/Pl_TIFFPredictor.hh>

#include <iostream>

#include <stdexcept>

class FuzzHelper

{

  public:

    FuzzHelper(unsigned char const* data, size_t size);

    void run();

  private:

    void doChecks();

    unsigned char const* data;

    size_t size;

};

FuzzHelper::FuzzHelper(unsigned char const* data, size_t size) :

    data(data),

    size(size)

{

}

void

FuzzHelper::doChecks()

{

    Pl_Discard discard;

    Pl_TIFFPredictor p("decoder", &discard, Pl_TIFFPredictor::a_decode, 16, 1, 8);

    p.write(const_cast<unsigned char*>(data), size);

    p.finish();

    // Exercise with strange values for some of the parameters.

    Pl_TIFFPredictor p2("decoder", &discard, Pl_TIFFPredictor::a_decode, 16, 2, 5);

    p2.write(const_cast<unsigned char*>(data), size);

    p2.finish();

}

void

FuzzHelper::run()

{

    try {

        doChecks();

    } catch (std::runtime_error const& e) {

        std::cerr << "runtime_error: " << e.what() << '\n';

    }

}

extern "C" int

LLVMFuzzerTestOneInput(unsigned char const* data, size_t size)

{

    FuzzHelper f(data, size);

    f.run();

    return 0;

}