private unsafe bool TryAllocateDescriptorSets(ReadOnlySpan <DescriptorSetLayout> layouts, bool isTry, out DescriptorSetCollection dsc)
{
Debug.Assert(!_done);
DescriptorSet[] descriptorSets = new DescriptorSet[layouts.Length];
fixed(DescriptorSet *pDescriptorSets = descriptorSets)
{
fixed(DescriptorSetLayout *pLayouts = layouts)
{
var descriptorSetAllocateInfo = new DescriptorSetAllocateInfo()
{
SType = StructureType.DescriptorSetAllocateInfo,
DescriptorPool = _pool,
DescriptorSetCount = (uint)layouts.Length,
PSetLayouts = pLayouts
};
var result = Api.AllocateDescriptorSets(Device, &descriptorSetAllocateInfo, pDescriptorSets);
if (isTry && result == Result.ErrorOutOfPoolMemory)
{
_totalSets = (int)_capacity;
_done = true;
DestroyIfDone();
dsc = default;
return(false);
}
result.ThrowOnError();
}
}
_totalSets += layouts.Length;
_setsInUse += layouts.Length;
dsc = new DescriptorSetCollection(this, descriptorSets);
return(true);
}
public bool TryAllocateDescriptorSets(ReadOnlySpan <DescriptorSetLayout> layouts, out DescriptorSetCollection dsc)
{
return(TryAllocateDescriptorSets(layouts, isTry: true, out dsc));
}
public void FreeDescriptorSets(DescriptorSetCollection dsc)
{
_setsInUse -= dsc.SetsCount;
Debug.Assert(_setsInUse >= 0);
DestroyIfDone();
}