namespace Metal
{
    [Introduced(PlatformName.iOS, 10, 0, PlatformArchitecture.All, null)]
    [Introduced(PlatformName.TvOS, 10, 0, PlatformArchitecture.All, null)]
    [Introduced(PlatformName.MacOSX, 10, 13, PlatformArchitecture.All, null)]
    [Protocol(Name = "MTLHeap", WrapperType = typeof(MTLHeapWrapper))]
    [ProtocolMember(IsProperty = false, IsRequired = true, IsStatic = false, Name = "GetMaxAvailableSize", ParameterByRef = new[] { false }, ParameterType = new[] { typeof(nuint) }, ReturnType = typeof(nuint), Selector = "maxAvailableSizeWithAlignment:")]
    [ProtocolMember(IsProperty = false, IsRequired = true, IsStatic = false, Name = "CreateBuffer", ParameterByRef = new[] { false, false }, ParameterType = new[] { typeof(nuint), typeof(MTLResourceOptions) }, ReturnType = typeof(IMTLBuffer), Selector = "newBufferWithLength:options:")]
    [ProtocolMember(IsProperty = false, IsRequired = true, IsStatic = false, Name = "CreateTexture", ParameterByRef = new[] { false }, ParameterType = new[] { typeof(MTLTextureDescriptor) }, ReturnType = typeof(IMTLTexture), Selector = "newTextureWithDescriptor:")]
    [ProtocolMember(IsProperty = false, IsRequired = true, IsStatic = false, Name = "SetPurgeableState", ParameterByRef = new[] { false }, ParameterType = new[] { typeof(MTLPurgeableState) }, ReturnType = typeof(MTLPurgeableState), Selector = "setPurgeableState:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "CreateBuffer", ParameterByRef = new[] { false, false, false }, ParameterType = new[] { typeof(nuint), typeof(MTLResourceOptions), typeof(nuint) }, ReturnType = typeof(IMTLBuffer), Selector = "newBufferWithLength:options:offset:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "CreateTexture", ParameterByRef = new[] { false, false }, ParameterType = new[] { typeof(MTLTextureDescriptor), typeof(nuint) }, ReturnType = typeof(IMTLTexture), Selector = "newTextureWithDescriptor:offset:")]
    [ProtocolMember(ArgumentSemantic = ArgumentSemantic.None, GetterSelector = "device", IsProperty = true, IsRequired = true, IsStatic = false, Name = "Device", PropertyType = typeof(IMTLDevice), Selector = "device")]
    [ProtocolMember(ArgumentSemantic = ArgumentSemantic.None, GetterSelector = "storageMode", IsProperty = true, IsRequired = true, IsStatic = false, Name = "StorageMode", PropertyType = typeof(MTLStorageMode), Selector = "storageMode")]
    [ProtocolMember(ArgumentSemantic = ArgumentSemantic.None, GetterSelector = "cpuCacheMode", IsProperty = true, IsRequired = true, IsStatic = false, Name = "CpuCacheMode", PropertyType = typeof(MTLCpuCacheMode), Selector = "cpuCacheMode")]
    [ProtocolMember(ArgumentSemantic = ArgumentSemantic.None, GetterSelector = "size", IsProperty = true, IsRequired = true, IsStatic = false, Name = "Size", PropertyType = typeof(nuint), Selector = "size")]
    [ProtocolMember(ArgumentSemantic = ArgumentSemantic.None, GetterSelector = "usedSize", IsProperty = true, IsRequired = true, IsStatic = false, Name = "UsedSize", PropertyType = typeof(nuint), Selector = "usedSize")]
    [ProtocolMember(ArgumentSemantic = ArgumentSemantic.None, GetterSelector = "currentAllocatedSize", IsProperty = true, IsRequired = false, IsStatic = false, Name = "CurrentAllocatedSize", PropertyType = typeof(nuint), Selector = "currentAllocatedSize")]
    [ProtocolMember(ArgumentSemantic = ArgumentSemantic.None, GetterSelector = "hazardTrackingMode", IsProperty = true, IsRequired = false, IsStatic = false, Name = "HazardTrackingMode", PropertyType = typeof(MTLHazardTrackingMode), Selector = "hazardTrackingMode")]
    [ProtocolMember(ArgumentSemantic = ArgumentSemantic.None, GetterSelector = "resourceOptions", IsProperty = true, IsRequired = false, IsStatic = false, Name = "ResourceOptions", PropertyType = typeof(MTLResourceOptions), Selector = "resourceOptions")]
    [ProtocolMember(ArgumentSemantic = ArgumentSemantic.None, GetterSelector = "type", IsProperty = true, IsRequired = false, IsStatic = false, Name = "Type", PropertyType = typeof(MTLHeapType), Selector = "type")]
    [ProtocolMember(ArgumentSemantic = ArgumentSemantic.None, GetterSelector = "label", IsProperty = true, IsRequired = true, IsStatic = false, Name = "Label", PropertyType = typeof(string), Selector = "label", SetterSelector = "setLabel:")]
    [Unavailable(PlatformName.WatchOS, PlatformArchitecture.All, null)]
    public interface IMTLHeap : INativeObject, IDisposable
    {
        [BindingImpl(BindingImplOptions.GeneratedCode | BindingImplOptions.Optimizable)]
        [Export("maxAvailableSizeWithAlignment:")]
        [Preserve(Conditional = true)]
        nuint GetMaxAvailableSize(nuint alignment);
    }
}