private DescriptorSet(GraphicsDevice graphicsDevice, DescriptorPool pool, DescriptorSetLayout desc)
{
if (pool.SrvOffset + desc.SrvCount > pool.SrvCount || pool.SamplerOffset + desc.SamplerCount > pool.SamplerCount)
{
// Eearly exit if OOM, IsValid should return false (TODO: different mechanism?)
Device = null;
BindingOffsets = null;
Description = null;
SrvStart = new CpuDescriptorHandle();
SamplerStart = new CpuDescriptorHandle();
return;
}
Device = graphicsDevice;
BindingOffsets = desc.BindingOffsets;
Description = desc;
// Store start CpuDescriptorHandle
SrvStart = desc.SrvCount > 0 ? (pool.SrvStart + graphicsDevice.SrvHandleIncrementSize * pool.SrvOffset) : new CpuDescriptorHandle();
SamplerStart = desc.SamplerCount > 0 ? (pool.SamplerStart + graphicsDevice.SamplerHandleIncrementSize * pool.SamplerOffset) : new CpuDescriptorHandle();
// Allocation is done, bump offsets
// TODO D3D12 thread safety?
pool.SrvOffset += desc.SrvCount;
pool.SamplerOffset += desc.SamplerCount;
}
protected override void Destroy()
{
foreach (var descriptorPool in descriptorPools)
{
descriptorPool.Dispose();
}
descriptorPools.Clear();
currentDescriptorPool = null;
foreach (var bufferPool in bufferPools)
{
bufferPool.Dispose();
}
bufferPools.Clear();
currentBufferPool = null;
base.Destroy();
}
private void SetupNextDescriptorPool()
{
currentDescriptorPoolIndex++;
if (currentDescriptorPoolIndex >= descriptorPools.Count)
{
descriptorPools.Add(currentDescriptorPool = DescriptorPool.New(graphicsDevice, new[]
{
new DescriptorTypeCount(EffectParameterClass.ConstantBuffer, 16384),
new DescriptorTypeCount(EffectParameterClass.ShaderResourceView, 65536),
new DescriptorTypeCount(EffectParameterClass.UnorderedAccessView, 4096),
new DescriptorTypeCount(EffectParameterClass.Sampler, 16384),
}));
}
else
{
currentDescriptorPool = descriptorPools[currentDescriptorPoolIndex];
}
}
public void Reset(CommandList commandList)
{
this.commandList = commandList;
foreach (var descriptorPool in descriptorPools)
{
descriptorPool.Reset();
}
foreach (var bufferPool in bufferPools)
{
bufferPool.Reset();
}
currentResourceGroupPoolIndex = -1;
currentDescriptorPool = descriptorPools[0];
currentDescriptorPoolIndex = 0;
currentBufferPool = null;
currentBufferPoolIndex = -1;
}
private DescriptorSet(GraphicsDevice graphicsDevice, DescriptorPool pool, DescriptorSetLayout desc)
{
this.HeapObjects = pool.Entries;
this.DescriptorStartOffset = pool.Allocate(desc.ElementCount);
}
public static DescriptorSet New(GraphicsDevice graphicsDevice, DescriptorPool pool, DescriptorSetLayout desc)
{
return(new DescriptorSet(graphicsDevice, pool, desc));
}
private DescriptorSet(GraphicsDevice graphicsDevice, DescriptorPool pool, DescriptorSetLayout desc)
{
GraphicsDevice = graphicsDevice;
NativeDescriptorSet = pool.AllocateDescriptorSet(desc);
}