//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="MatrixStorage"
// Project: StgSharp
// AuthorGroup: Nitload
// Copyright (c) Nitload. All rights reserved.
//     
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//     
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using StgSharp.HighPerformance;
using StgSharp.HighPerformance.Memory;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;

using HLSFAllocator = global::StgSharp.HighPerformance.Memory.HybridLayerSegregatedFitAllocator;
using HLSFHandle = global::StgSharp.HighPerformance.Memory.HybridLayerSegregatedFitAllocationHandle;

namespace StgSharp.Mathematics.Numeric
{
    public abstract class MatrixStorage<T> : IDisposable where T : unmanaged, INumber<T>
    {

        internal unsafe ref MatrixKernel<T> this[long index]
        {
            get { return ref Unsafe.AsRef<MatrixKernel<T>>(BufferPointer + MatrixKernel<T>.Size * index); }
        }

        protected internal abstract unsafe T* BufferPointer { get; }

        public abstract void Dispose();

    }

    internal class MatrixStorageHLSF<T>(HLSFAllocator allocator, HLSFHandle handle) : MatrixStorage<T>
        where T : unmanaged, INumber<T>
    {

        internal HLSFAllocator _allocator = allocator;
        internal HLSFHandle _handle = handle;

        protected internal override unsafe T* BufferPointer => (T*)_handle.Pointer;

        public override void Dispose()
        {
            allocator.Free(_handle);
        }

    }
}