/// <summary>Initializes a new instance of the <see cref="GraphicsMemoryBlockCollection" /> class.</summary>
/// <param name="device">The device for which the memory block collection is being created</param>
/// <param name="allocator">The allocator that manages the collection.</param>
/// <exception cref="ArgumentNullException"><paramref name="device" /> is <c>null</c>.</exception>
/// <exception cref="ArgumentNullException"><paramref name="allocator" /> is <c>null</c>.</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="allocator" /> was not created for <paramref name="device" />.</exception>
protected GraphicsMemoryBlockCollection(GraphicsDevice device, GraphicsMemoryAllocator allocator)
: base(device)
{
ThrowIfNull(allocator, nameof(allocator));
if (allocator.Device != device)
{
ThrowForInvalidParent(allocator.Device, nameof(allocator));
}
_allocator = allocator;
_blocks = new List <GraphicsMemoryBlock>();
_mutex = new ReaderWriterLockSlim();
ref readonly var allocatorSettings = ref _allocator.Settings;
/// <summary>Initializes a new instance of the <see cref="GraphicsMemoryBlockCollection" /> class.</summary>
/// <param name="blockMinimumSize">The minimum size of any new memory blocks created for the collection, in bytes.</param>
/// <param name="blockPreferredSize">The preferred size of any new memory blocks created for the collection, in bytes.</param>
/// <param name="blockMarginSize">The minimum size of free regions to keep on either side of an allocated region, in bytes.</param>
/// <param name="blockMinimumFreeRegionSizeToRegister">The minimum size of a free region for it to be registered as available, in bytes.</param>
/// <param name="allocator">The allocator that manages the collection.</param>
/// <param name="minimumBlockCount">The minimum number of blocks allowed in the collection.</param>
/// <param name="maximumBlockCount">The maximum number of blocks allowed in the collection.</param>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="blockMinimumSize" /> is <c>zero</c>.</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="blockPreferredSize" /> is less than <paramref name="blockMinimumSize"/>.</exception>
/// <exception cref="ArgumentNullException"><paramref name="allocator" /> is <c>null</c>.</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="maximumBlockCount" /> is <c>zero</c>.</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="blockMinimumSize"/> is greater than <paramref name="maximumBlockCount"/>.</exception>
protected GraphicsMemoryBlockCollection(ulong blockMinimumSize, ulong blockPreferredSize, ulong blockMarginSize, ulong blockMinimumFreeRegionSizeToRegister, GraphicsMemoryAllocator allocator, nuint minimumBlockCount, nuint maximumBlockCount)
{
ThrowIfZero(blockMinimumSize, nameof(blockMinimumSize));
if (blockPreferredSize < blockMinimumSize)
{
ThrowArgumentOutOfRangeException(nameof(blockPreferredSize), blockPreferredSize);
}
ThrowIfNull(allocator, nameof(allocator));
ThrowIfZero(maximumBlockCount, nameof(maximumBlockCount));
if (minimumBlockCount > maximumBlockCount)
{
ThrowArgumentOutOfRangeException(nameof(minimumBlockCount), minimumBlockCount);
}
_blockMarginSize = blockMarginSize;
_blockMinimumSize = blockMinimumSize;
_blockMinimumFreeRegionSizeToRegister = blockMinimumFreeRegionSizeToRegister;
_blockPreferredSize = blockPreferredSize;
_allocator = allocator;
_blocks = new List <GraphicsMemoryBlock>();
_mutex = new ReaderWriterLockSlim();
_maximumBlockCount = maximumBlockCount;
_minimumBlockCount = minimumBlockCount;
for (nuint i = 0; i < _minimumBlockCount; ++i)
{
var block = CreateBlock(blockMinimumSize);
_blocks.Add(block);
}
_ = _state.Transition(to: Initialized);
}
