File FreeverbReverb.h¶

// Copyright (c) 2026-present Sparky Studios. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once

#ifndef _AM_DSP_REVERBS_FREEVERB_REVERB_H
#define _AM_DSP_REVERBS_FREEVERB_REVERB_H

#include <SparkyStudios/Audio/Amplitude/Core/Common.h>
#include <SparkyStudios/Audio/Amplitude/DSP/Reverb.h>

#include <memory>

namespace Freeverb
{
    class ReverbModel;
}

namespace SparkyStudios::Audio::Amplitude
{
    class FreeverbReverb;

    class AM_API_PUBLIC FreeverbReverbInstance final : public ReverbInstance
    {
    public:
        explicit FreeverbReverbInstance(FreeverbReverb* parent);

        ~FreeverbReverbInstance() override;

        void Initialize(AmUInt32 sampleRate) override;

        void Reset() override;

        void SetRoomParameters(AmReal32 roomSize, AmReal32 absorption) override;

        void Configure(AmUInt64 frames) override;

        void Process(const AudioBuffer& in, AudioBuffer& out, AmUInt64 frames, AmUInt32 sampleRate) override;

    private:
        std::unique_ptr<Freeverb::ReverbModel> _model;
        AudioBuffer _scratchBuffer;
    };

    class AM_API_PUBLIC FreeverbReverb final : public Reverb
    {
    public:
        FreeverbReverb();

        ~FreeverbReverb() override = default;

        [[nodiscard]] std::shared_ptr<ReverbInstance> CreateInstance() override;
    };
} // namespace SparkyStudios::Audio::Amplitude

#endif // _AM_DSP_REVERBS_FREEVERB_REVERB_H