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/* sane - Scanner Access Now Easy.
Copyright (C) 2019 Povilas Kanapickas <povilas@radix.lt>
This file is part of the SANE package.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef BACKEND_GENESYS_REGISTER_CACHE_H
#define BACKEND_GENESYS_REGISTER_CACHE_H
#include "register.h"
namespace genesys {
template<class Value>
class RegisterCache
{
public:
void update(std::uint16_t address, Value value)
{
if (regs_.has_reg(address)) {
regs_.set(address, value);
} else {
regs_.init_reg(address, value);
}
}
void update(const Genesys_Register_Set& regs)
{
for (const auto& reg : regs) {
update(reg.address, reg.value);
}
}
Value get(std::uint16_t address) const
{
return regs_.get(address);
}
private:
RegisterContainer<Value> regs_;
template<class V>
friend std::ostream& operator<<(std::ostream& out, const RegisterCache<V>& cache);
};
template<class Value>
std::ostream& operator<<(std::ostream& out, const RegisterCache<Value>& cache)
{
out << cache.regs_;
return out;
}
} // namespace genesys
#endif // BACKEND_GENESYS_LINE_BUFFER_H
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