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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
*/
#include "atrac_enc_cache.h"
namespace NAtracDEnc {
TEncCache::TEncCache(size_t numKeys, TProvideUnit provideUnit, TMakeKey makeKey, void* opaque)
: UnitBuffers(numKeys)
, ProvideUnit(provideUnit)
, MakeKey(makeKey)
, Opaque(opaque)
{
}
TUnit* TEncCache::GetOrCompute(size_t ch, size_t bfu, size_t wordlen, const float* values)
{
const size_t key = MakeKey(ch, bfu, wordlen);
std::unique_ptr<TUnit>& slot = UnitBuffers[key];
if (!slot) {
slot.reset(ProvideUnit(ch, bfu, wordlen, values, Opaque));
}
return slot.get();
}
void TEncCache::Reset()
{
// Keep the vector sized; just drop the cached units for the next frame.
for (std::unique_ptr<TUnit>& slot : UnitBuffers) {
slot.reset();
}
}
} // namespace NAtracDEnc
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