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/*
* This file is part of AtracDEnc.
*
* AtracDEnc is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* AtracDEnc 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with AtracDEnc; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <cstring>
namespace NAtracDEnc {
template<class T, int N, int S>
class TDelayBuffer {
public:
TDelayBuffer() {
static_assert(std::is_pod<T>::value, "T must be a POD type.");
memset(Buffer_, 0, sizeof(T) * N * S * 2);
}
void Shift(bool erace = true) {
for (int i = 0; i < N; i++) {
memcpy(&Buffer_[i][0], &Buffer_[i][S], sizeof(T) * S);
if (erace)
memset(&Buffer_[i][S], 0, sizeof(T) * S);
}
}
T* GetFirst(int i) {
return &Buffer_[i][0];
}
T* GetSecond(int i) {
return &Buffer_[i][S];
}
private:
T Buffer_[N][S*2];
};
} // namespace NAtracDEnc
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