public ResourceGroupDescription(DescriptorSetLayoutBuilder descriptorSetLayout, EffectConstantBufferDescription constantBufferReflection) : this()
{
DescriptorSetLayout = descriptorSetLayout;
ConstantBufferReflection = constantBufferReflection;
// We combine both hash for DescriptorSet and cbuffer itself (if it exists)
Hash = descriptorSetLayout.Hash;
if (constantBufferReflection != null)
{
ObjectId.Combine(ref Hash, ref constantBufferReflection.Hash, out Hash);
}
}
public static EffectDescriptorSetReflection New(GraphicsDevice graphicsDevice, EffectBytecode effectBytecode, List <string> effectDescriptorSetSlots, string defaultSetSlot)
{
// Find resource groups
// TODO: We should precompute most of that at compile time in BytecodeReflection
// just waiting for format to be more stable
var descriptorSetLayouts = new EffectDescriptorSetReflection {
DefaultSetSlot = defaultSetSlot
};
foreach (var effectDescriptorSetSlot in effectDescriptorSetSlots)
{
// Find all resources related to this slot name
// NOTE: Ordering is mirrored by GLSL layout in Vulkan
var descriptorSetLayoutBuilder = new DescriptorSetLayoutBuilder();
bool hasBindings = false;
foreach (var resourceBinding in effectBytecode.Reflection.ResourceBindings
.Where(x => x.ResourceGroup == effectDescriptorSetSlot || (effectDescriptorSetSlot == defaultSetSlot && (x.ResourceGroup == null || x.ResourceGroup == "Globals")))
.GroupBy(x => new { Key = x.KeyInfo.Key, Class = x.Class, Type = x.Type, ElementType = x.ElementType.Type, SlotCount = x.SlotCount, LogicalGroup = x.LogicalGroup })
.OrderBy(x => x.Key.Class == EffectParameterClass.ConstantBuffer ? 0 : 1)) // Note: Putting cbuffer first for now
{
SamplerState samplerState = null;
if (resourceBinding.Key.Class == EffectParameterClass.Sampler)
{
var matchingSamplerState = effectBytecode.Reflection.SamplerStates.FirstOrDefault(x => x.Key == resourceBinding.Key.Key);
if (matchingSamplerState != null)
{
samplerState = SamplerState.New(graphicsDevice, matchingSamplerState.Description);
}
}
hasBindings = true;
descriptorSetLayoutBuilder.AddBinding(resourceBinding.Key.Key, resourceBinding.Key.LogicalGroup, resourceBinding.Key.Class, resourceBinding.Key.Type, resourceBinding.Key.ElementType, resourceBinding.Key.SlotCount, samplerState);
}
descriptorSetLayouts.AddLayout(effectDescriptorSetSlot, hasBindings ? descriptorSetLayoutBuilder : null);
}
return(descriptorSetLayouts);
}
private DescriptorSetLayout(GraphicsDevice device, DescriptorSetLayoutBuilder builder)
{
BindingOffsets = new int[builder.ElementCount];
int currentBindingOffset = 0;
foreach (var entry in builder.Entries)
{
// We will both setup BindingOffsets and increment SamplerCount/SrvCount at the same time
if (entry.Class == EffectParameterClass.Sampler)
{
for (int i = 0; i < entry.ArraySize; ++i)
{
BindingOffsets[currentBindingOffset++] = entry.ImmutableSampler != null ? -1 : SamplerCount++ *device.SamplerHandleIncrementSize;
}
}
else
{
for (int i = 0; i < entry.ArraySize; ++i)
{
BindingOffsets[currentBindingOffset++] = SrvCount++ *device.SrvHandleIncrementSize;
}
}
}
}
public LayoutEntry(string name, DescriptorSetLayoutBuilder layout)
{
Name = name;
Layout = layout;
}
public void AddLayout(string descriptorSetName, DescriptorSetLayoutBuilder descriptorSetLayoutBuilder)
{
Layouts.Add(new LayoutEntry(descriptorSetName, descriptorSetLayoutBuilder));
}
private DescriptorSetLayout(GraphicsDevice device, DescriptorSetLayoutBuilder builder)
{
ElementCount = builder.ElementCount;
Entries = builder.Entries.ToArray();
}
public static DescriptorSetLayout New(GraphicsDevice device, DescriptorSetLayoutBuilder builder)
{
return(new DescriptorSetLayout(device, builder));
}
public static void ProcessResources(this ParameterCollectionLayout parameterCollectionLayout, DescriptorSetLayoutBuilder layout)
{
foreach (var layoutEntry in layout.Entries)
{
parameterCollectionLayout.LayoutParameterKeyInfos.Add(new ParameterKeyInfo(layoutEntry.Key, parameterCollectionLayout.ResourceCount++));
}
}
private DescriptorSetLayout(GraphicsDevice device, DescriptorSetLayoutBuilder builder) : base(device)
{
this.Builder = builder;
Recreate();
}
