diff options
Diffstat (limited to 'src/transfer_function.h')
| -rw-r--r-- | src/transfer_function.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/transfer_function.h b/src/transfer_function.h index 31a794e2..16d00c1a 100644 --- a/src/transfer_function.h +++ b/src/transfer_function.h @@ -29,17 +29,22 @@ namespace dcp { class TransferFunction : public boost::noncopyable { public: + TransferFunction (bool inverse); + virtual ~TransferFunction (); - float const * lut (int bit_depth) const; + /** @return A look-up table (of size 2^bit_depth) whose values range from 0 to 1 */ + double const * lut (int bit_depth) const; - virtual bool about_equal (boost::shared_ptr<const TransferFunction> other, float epsilon) const = 0; + virtual bool about_equal (boost::shared_ptr<const TransferFunction> other, double epsilon) const; protected: - virtual float * make_lut (int bit_depth) const = 0; + virtual double * make_lut (int bit_depth) const = 0; + + bool _inverse; private: - mutable std::map<int, float*> _luts; + mutable std::map<int, double*> _luts; }; } |