public AmtDescriptorPool(MgDescriptorPoolCreateInfo createInfo)
{
if (createInfo == null)
{
throw new ArgumentNullException(nameof(createInfo));
}
PoolSize = createInfo.MaxSets;
FreeSets = new ConcurrentBag <AmtDescriptorSet> ();
AttachedSets = new AmtDescriptorSet[PoolSize];
for (var i = 0; i < PoolSize; ++i)
{
var descriptorSet = new AmtDescriptorSet(i);
AttachedSets[i] = descriptorSet;
FreeSets.Add(descriptorSet);
}
}
public Result AllocateDescriptorSets(MgDescriptorSetAllocateInfo pAllocateInfo, out IMgDescriptorSet[] pDescriptorSets)
{
if (pAllocateInfo == null)
{
throw new ArgumentNullException(nameof(pAllocateInfo));
}
var pool = (AmtDescriptorPool)pAllocateInfo.DescriptorPool;
if (pool == null)
{
throw new ArgumentNullException(nameof(pAllocateInfo.DescriptorPool));
}
var noOfSetsRequested = pAllocateInfo.SetLayouts.Length;
if (pool.RemainingSets < noOfSetsRequested)
{
throw new InvalidOperationException();
}
pDescriptorSets = new AmtDescriptorSet[noOfSetsRequested];
for (int i = 0; i < noOfSetsRequested; ++i)
{
var setLayout = (AmtDescriptorSetLayout)pAllocateInfo.SetLayouts[i];
AmtDescriptorSet dSet;
if (!pool.TryTake(out dSet))
{
throw new InvalidOperationException();
}
// copy here
dSet.Initialize(setLayout);
pDescriptorSets[i] = dSet;
}
return(Result.SUCCESS);
}
public bool TryTake(out AmtDescriptorSet dSet)
{
return(FreeSets.TryTake(out dSet));
}
public void Add(AmtDescriptorSet localSet)
{
FreeSets.Add(localSet);
}