public VkResourceLayout(VkGraphicsDevice gd, ref ResourceLayoutDescription description)
{
_gd = gd;
VkDescriptorSetLayoutCreateInfo dslCI = VkDescriptorSetLayoutCreateInfo.New();
ResourceLayoutElementDescription[] elements = description.Elements;
_descriptorTypes = new VkDescriptorType[elements.Length];
VkDescriptorSetLayoutBinding *bindings = stackalloc VkDescriptorSetLayoutBinding[elements.Length];
for (uint i = 0; i < elements.Length; i++)
{
bindings[i].binding = i;
bindings[i].descriptorCount = 1;
VkDescriptorType descriptorType = VkFormats.VdToVkDescriptorType(elements[i].Kind);
bindings[i].descriptorType = descriptorType;
bindings[i].stageFlags = VkFormats.VdToVkShaderStages(elements[i].Stages);
_descriptorTypes[i] = descriptorType;
}
dslCI.bindingCount = (uint)elements.Length;
dslCI.pBindings = bindings;
VkResult result = vkCreateDescriptorSetLayout(_gd.Device, ref dslCI, null, out _dsl);
CheckResult(result);
}
/// <summary>
/// Adds the given binding descriptor
/// </summary>
/// <param name="binding">Binding to add</param>
/// <param name="type">Binding type</param>
/// <param name="arraySize">Binding's array size</param>
/// <param name="flags">Shader stages</param>
/// <param name="immutableSamplers">Immutable samplers for the binding</param>
/// <returns>this</returns>
public DescriptorSetLayoutBuilder Add(uint binding, VkDescriptorType type, uint arraySize,
VkShaderStageFlag flags, params Sampler[] immutableSamplers)
{
Debug.Assert(immutableSamplers.Length == 0 || type == VkDescriptorType.CombinedImageSampler ||
type == VkDescriptorType.Sampler, "Can't use immutable samplers on non-sampler type");
var samplersRewrite = immutableSamplers.Select(x =>
{
x.AssertValid();
return(x.Handle);
}).ToArray();
if (samplersRewrite.Length > 0)
{
_pins.Add(GCHandle.Alloc(samplersRewrite, GCHandleType.Pinned));
}
unsafe
{
_bindings.Add(binding, new VkDescriptorSetLayoutBinding()
{
Binding = binding,
DescriptorType = type,
DescriptorCount = arraySize,
StageFlags = flags,
PImmutableSamplers =
(VkSampler *)(samplersRewrite.Length > 0
? Marshal.UnsafeAddrOfPinnedArrayElement(samplersRewrite, 0)
: IntPtr.Zero).ToPointer()
});
}
return(this);
}
public DescriptorSetLayoutBinding(uint binding, VkDescriptorType type, VkShaderStageFlags stageFlags, uint descriptorCount = 1)
{
descriptorType = type;
this.binding = binding;
this.descriptorCount = descriptorCount;
this.stageFlags = stageFlags;
pImmutableSamplers = null;
}
public VkDescriptorSetLayoutBinding(uint _binding, VkShaderStageFlags _stageFlags, VkDescriptorType _descriptorType, uint _descriptorCount = 1)
{
binding = _binding;
descriptorType = _descriptorType;
descriptorCount = _descriptorCount;
stageFlags = _stageFlags;
pImmutableSamplers = (IntPtr)0;
}
public VkResourceSet(VkGraphicsDevice gd, ref ResourceSetDescription description)
: base(ref description)
{
_gd = gd;
VkResourceLayout vkLayout = Util.AssertSubtype <ResourceLayout, VkResourceLayout>(description.Layout);
VkDescriptorSetLayout dsl = vkLayout.DescriptorSetLayout;
_descriptorCounts = vkLayout.DescriptorResourceCounts;
_descriptorAllocationToken = _gd.DescriptorPoolManager.Allocate(_descriptorCounts, dsl);
BindableResource[] boundResources = description.BoundResources;
uint descriptorWriteCount = (uint)boundResources.Length;
VkWriteDescriptorSet * descriptorWrites = stackalloc VkWriteDescriptorSet[(int)descriptorWriteCount];
VkDescriptorBufferInfo *bufferInfos = stackalloc VkDescriptorBufferInfo[(int)descriptorWriteCount];
VkDescriptorImageInfo * imageInfos = stackalloc VkDescriptorImageInfo[(int)descriptorWriteCount];
for (int i = 0; i < descriptorWriteCount; i++)
{
VkDescriptorType type = vkLayout.DescriptorTypes[i];
descriptorWrites[i].sType = VkStructureType.WriteDescriptorSet;
descriptorWrites[i].descriptorCount = 1;
descriptorWrites[i].descriptorType = type;
descriptorWrites[i].dstBinding = (uint)i;
descriptorWrites[i].dstSet = _descriptorAllocationToken.Set;
if (type == VkDescriptorType.UniformBuffer || type == VkDescriptorType.StorageBuffer)
{
VkBuffer vkBuffer = Util.AssertSubtype <BindableResource, VkBuffer>(boundResources[i]);
bufferInfos[i].buffer = vkBuffer.DeviceBuffer;
bufferInfos[i].range = vkBuffer.SizeInBytes;
descriptorWrites[i].pBufferInfo = &bufferInfos[i];
}
else if (type == VkDescriptorType.SampledImage)
{
VkTextureView textureView = Util.AssertSubtype <BindableResource, VkTextureView>(boundResources[i]);
imageInfos[i].imageView = textureView.ImageView;
imageInfos[i].imageLayout = VkImageLayout.ShaderReadOnlyOptimal;
descriptorWrites[i].pImageInfo = &imageInfos[i];
}
else if (type == VkDescriptorType.StorageImage)
{
VkTextureView textureView = Util.AssertSubtype <BindableResource, VkTextureView>(boundResources[i]);
imageInfos[i].imageView = textureView.ImageView;
imageInfos[i].imageLayout = VkImageLayout.General;
descriptorWrites[i].pImageInfo = &imageInfos[i];
}
else if (type == VkDescriptorType.Sampler)
{
VkSampler sampler = Util.AssertSubtype <BindableResource, VkSampler>(boundResources[i]);
imageInfos[i].sampler = sampler.DeviceSampler;
descriptorWrites[i].pImageInfo = &imageInfos[i];
}
}
vkUpdateDescriptorSets(_gd.Device, descriptorWriteCount, descriptorWrites, 0, null);
}
public VkResourceSet(VkGraphicsDevice gd, ref ResourceSetDescription description)
{
_gd = gd;
VkResourceLayout vkLayout = Util.AssertSubtype <ResourceLayout, VkResourceLayout>(description.Layout);
VkDescriptorSetAllocateInfo dsAI = VkDescriptorSetAllocateInfo.New();
dsAI.descriptorSetCount = 1;
VkDescriptorSetLayout dsl = vkLayout.DescriptorSetLayout;
dsAI.pSetLayouts = &dsl;
dsAI.descriptorPool = _gd.SharedDescriptorPool;
VkResult result = vkAllocateDescriptorSets(_gd.Device, ref dsAI, out _descriptorSet);
CheckResult(result);
BindableResource[] boundResources = description.BoundResources;
uint descriptorWriteCount = (uint)boundResources.Length;
VkWriteDescriptorSet * descriptorWrites = stackalloc VkWriteDescriptorSet[(int)descriptorWriteCount];
VkDescriptorBufferInfo *bufferInfos = stackalloc VkDescriptorBufferInfo[(int)descriptorWriteCount];
VkDescriptorImageInfo * imageInfos = stackalloc VkDescriptorImageInfo[(int)descriptorWriteCount];
for (int i = 0; i < descriptorWriteCount; i++)
{
VkDescriptorType type = vkLayout.DescriptorTypes[i];
descriptorWrites[i].sType = VkStructureType.WriteDescriptorSet;
descriptorWrites[i].descriptorCount = 1;
descriptorWrites[i].descriptorType = type;
descriptorWrites[i].dstBinding = (uint)i;
descriptorWrites[i].dstSet = _descriptorSet;
if (type == VkDescriptorType.UniformBuffer)
{
VkUniformBuffer uniformBuffer = Util.AssertSubtype <BindableResource, VkUniformBuffer>(boundResources[i]);
bufferInfos[i].buffer = uniformBuffer.DeviceBuffer;
bufferInfos[i].range = uniformBuffer.SizeInBytes;
descriptorWrites[i].pBufferInfo = &bufferInfos[i];
}
else if (type == VkDescriptorType.SampledImage)
{
VkTextureView textureView = Util.AssertSubtype <BindableResource, VkTextureView>(boundResources[i]);
imageInfos[i].imageView = textureView.ImageView;
imageInfos[i].imageLayout = VkImageLayout.ShaderReadOnlyOptimal;
descriptorWrites[i].pImageInfo = &imageInfos[i];
}
else if (type == VkDescriptorType.Sampler)
{
VkSampler sampler = Util.AssertSubtype <BindableResource, VkSampler>(boundResources[i]);
imageInfos[i].sampler = sampler.DeviceSampler;
descriptorWrites[i].pImageInfo = &imageInfos[i];
}
}
vkUpdateDescriptorSets(_gd.Device, descriptorWriteCount, descriptorWrites, 0, null);
}
public static VkDescriptorPoolSize descriptorPoolSize(
VkDescriptorType type,
uint descriptorCount)
{
VkDescriptorPoolSize descriptorPoolSize = new VkDescriptorPoolSize();
descriptorPoolSize.type = type;
descriptorPoolSize.descriptorCount = descriptorCount;
return(descriptorPoolSize);
}
public DescriptorBindingInfo(
uint index,
VkDescriptorType descriptorType,
uint descriptorCounts,
VkShaderStageFlags shaderStageFlags
)
{
Index = index;
DescriptorType = descriptorType;
DescriptorCounts = descriptorCounts;
ShaderStageFlags = shaderStageFlags;
}
public VkImageViewHandleInfoNVX(
VulkanHandle <VkImageView> imageView = default,
VkDescriptorType descriptorType = default,
VulkanHandle <VkSampler> sampler = default
)
{
sType = TYPE;
pNext = null;
ImageView = imageView;
DescriptorType = descriptorType;
Sampler = sampler;
}
public unsafe VkWriteDescriptorSet(uint binding, VkDescriptorSet dstSet, VkDescriptorType type,
ref VkDescriptorBufferInfo bufferInfo, uint descriptorCount = 1)
{
this.sType = VkStructureType.WriteDescriptorSet;
this.pNext = null;
this.dstSet = dstSet;
this.descriptorType = type;
this.dstBinding = binding;
this.pBufferInfo = (VkDescriptorBufferInfo *)Unsafe.AsPointer(ref bufferInfo);
this.descriptorCount = descriptorCount;
this.pImageInfo = null;
this.pTexelBufferView = null;
this.dstArrayElement = 0;
}
public static VkDescriptorSetLayoutBinding descriptorSetLayoutBinding(
VkDescriptorType type,
VkShaderStageFlags stageFlags,
uint binding,
uint descriptorCount = 1)
{
VkDescriptorSetLayoutBinding setLayoutBinding = new VkDescriptorSetLayoutBinding();
setLayoutBinding.descriptorType = type;
setLayoutBinding.stageFlags = stageFlags;
setLayoutBinding.binding = binding;
setLayoutBinding.descriptorCount = descriptorCount;
return(setLayoutBinding);
}
public unsafe VkWriteDescriptorSet(uint binding,
VkDescriptorSet dstSet,
VkDescriptorType type, VkWriteDescriptorSetInlineUniformBlockEXT *inlineUniformBlockEXT)
{
this.sType = VkStructureType.WriteDescriptorSet;
this.pNext = inlineUniformBlockEXT;
this.dstSet = dstSet;
this.descriptorType = type;
this.dstBinding = binding;
this.descriptorCount = inlineUniformBlockEXT->dataSize;
this.pBufferInfo = null;
this.pTexelBufferView = null;
this.pImageInfo = null;
this.dstArrayElement = 0;
}
public static VkWriteDescriptorSet writeDescriptorSet(
VkDescriptorSet dstSet,
VkDescriptorType type,
uint binding,
VkDescriptorImageInfo *imageInfo,
uint descriptorCount = 1)
{
VkWriteDescriptorSet writeDescriptorSet = VkWriteDescriptorSet.New();
writeDescriptorSet.dstSet = dstSet;
writeDescriptorSet.descriptorType = type;
writeDescriptorSet.dstBinding = binding;
writeDescriptorSet.pImageInfo = imageInfo;
writeDescriptorSet.descriptorCount = descriptorCount;
return(writeDescriptorSet);
}
public VkDescriptorSetLayoutBinding(uint _binding, VkShaderStageFlags _stageFlags, VkDescriptorType _descriptorType, uint _descriptorCount = 1)
{
binding = _binding;
this._descriptorType = (int)_descriptorType;
descriptorCount = _descriptorCount;
this._stageFlags = (uint)_stageFlags;
_pImmutableSamplers = IntPtr.Zero;
}
public VkDescriptorPoolSize(VkDescriptorType descriptorType, uint count = 1)
{
this._type = (int)descriptorType;
descriptorCount = count;
}
public VkResourceLayout(VkGraphicsDevice gd, ref ResourceLayoutDescription description)
: base(ref description)
{
_gd = gd;
VkDescriptorSetLayoutCreateInfo dslCI = VkDescriptorSetLayoutCreateInfo.New();
ResourceLayoutElementDescription[] elements = description.Elements;
_descriptorTypes = new VkDescriptorType[elements.Length];
VkDescriptorSetLayoutBinding *bindings = stackalloc VkDescriptorSetLayoutBinding[elements.Length];
uint uniformBufferCount = 0;
uint sampledImageCount = 0;
uint samplerCount = 0;
uint storageBufferCount = 0;
uint storageImageCount = 0;
for (uint i = 0; i < elements.Length; i++)
{
bindings[i].binding = i;
bindings[i].descriptorCount = 1;
VkDescriptorType descriptorType = VkFormats.VdToVkDescriptorType(elements[i].Kind, elements[i].Options);
bindings[i].descriptorType = descriptorType;
bindings[i].stageFlags = VkFormats.VdToVkShaderStages(elements[i].Stages);
if ((elements[i].Options & ResourceLayoutElementOptions.DynamicBinding) != 0)
{
DynamicBufferCount += 1;
}
_descriptorTypes[i] = descriptorType;
switch (descriptorType)
{
case VkDescriptorType.Sampler:
samplerCount += 1;
break;
case VkDescriptorType.SampledImage:
sampledImageCount += 1;
break;
case VkDescriptorType.StorageImage:
storageImageCount += 1;
break;
case VkDescriptorType.UniformBuffer:
uniformBufferCount += 1;
break;
case VkDescriptorType.StorageBuffer:
storageBufferCount += 1;
break;
}
}
DescriptorResourceCounts = new DescriptorResourceCounts(
uniformBufferCount,
sampledImageCount,
samplerCount,
storageBufferCount,
storageImageCount);
dslCI.bindingCount = (uint)elements.Length;
dslCI.pBindings = bindings;
VkResult result = vkCreateDescriptorSetLayout(_gd.Device, ref dslCI, null, out _dsl);
CheckResult(result);
}
internal DescriptorData(VkDescriptorSetLayoutBinding b)
{
Type = b.DescriptorType;
Count = b.DescriptorCount;
Stages = b.StageFlags;
}
/// <summary>
/// Create a new material data based off of the pass material also adds the new data to the cache
/// </summary>
/// <param name="material"></param>
/// <returns></returns>
public static MaterialInfo CreateMaterialData(Material material, ShaderMapping mapping = null)
{
// fetch the shadermapping for this materials shader
if (mapping == null && material != null)
{
mapping = ShaderMappingIO.ReadFromJsonFile(material.shader);
if (mapping == null) // if we fail to find a mapping try and load the default
{
mapping = ShaderMappingIO.ReadFromJsonFile(ShaderMappingIO.GetPathForShaderMappingFile("Default"));
}
}
MaterialInfo matdata = new MaterialInfo
{
id = material != null?material.GetInstanceID() : 0,
mapping = mapping
};
// process uniforms
UniformMappedData[] uniformDatas = mapping.GetUniformDatasFromMaterial(material);
foreach (UniformMappedData uniData in uniformDatas)
{
VkDescriptorType descriptorType = VkDescriptorType.VK_DESCRIPTOR_TYPE_MAX_ENUM;
uint descriptorCount = 1;
if (uniData.mapping.uniformType == UniformMapping.UniformType.Texture2DUniform)
{
Texture tex = uniData.data as Texture;
if (tex == null)
{
continue;
}
// get imagedata for the texture
ImageData imageData = TextureConverter.GetOrCreateImageData(tex);
// get descriptor for the image data
DescriptorImageData descriptorImage = GetOrCreateDescriptorImageData(imageData, uniData.mapping.vsgBindingIndex);
matdata.imageDescriptors.Add(descriptorImage);
descriptorType = VkDescriptorType.VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
}
else if (uniData.mapping.uniformType == UniformMapping.UniformType.Texture2DArrayUniform)
{
Texture2DArray tex = uniData.data as Texture2DArray;
if (tex == null)
{
continue;
}
ImageData[] imageDatas = TextureConverter.GetOrCreateImageData(tex);
DescriptorImageData descriptorImage = GetOrCreateDescriptorImageData(imageDatas, uniData.mapping.vsgBindingIndex);
matdata.imageDescriptors.Add(descriptorImage);
descriptorType = VkDescriptorType.VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
descriptorCount = (uint)imageDatas.Length;
}
else if (uniData.mapping.uniformType == UniformMapping.UniformType.FloatUniform)
{
float value = (float)uniData.data;
if (value == float.NaN)
{
continue;
}
// get descriptor for the image data
DescriptorFloatUniformData descriptorFloat = new DescriptorFloatUniformData
{
id = material.GetInstanceID(),
binding = uniData.mapping.vsgBindingIndex,
value = value
};
matdata.floatDescriptors.Add(descriptorFloat);
descriptorType = VkDescriptorType.VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
}
else if (uniData.mapping.uniformType == UniformMapping.UniformType.Vec4Uniform || uniData.mapping.uniformType == UniformMapping.UniformType.ColorUniform)
{
Vector4 vector = Vector4.zero;
if (uniData.mapping.uniformType == UniformMapping.UniformType.Vec4Uniform)
{
vector = (Vector4)uniData.data;
}
if (uniData.mapping.uniformType == UniformMapping.UniformType.ColorUniform)
{
Color color = (Color)uniData.data;
vector = new Vector4(color.r, color.g, color.b, color.a);
}
if (vector == null)
{
continue;
}
// get descriptor for the image data
DescriptorVectorUniformData descriptorVector = new DescriptorVectorUniformData
{
id = material.GetInstanceID(),
binding = uniData.mapping.vsgBindingIndex,
value = NativeUtils.ToNative(vector)
};
matdata.vectorDescriptors.Add(descriptorVector);
descriptorType = VkDescriptorType.VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
}
if (descriptorType == VkDescriptorType.VK_DESCRIPTOR_TYPE_MAX_ENUM)
{
continue;
}
// add any custom defines related to the texture
if (uniData.mapping.vsgDefines != null && uniData.mapping.vsgDefines.Count > 0)
{
matdata.customDefines.AddRange(uniData.mapping.vsgDefines);
}
// create the descriptor binding to match the descriptor image
VkDescriptorSetLayoutBinding descriptorBinding = new VkDescriptorSetLayoutBinding
{
binding = (uint)uniData.mapping.vsgBindingIndex,
descriptorType = descriptorType,
descriptorCount = descriptorCount,
stageFlags = uniData.mapping.stages,
pImmutableSamplers = System.IntPtr.Zero
};
matdata.descriptorBindings.Add(descriptorBinding);
}
if (material != null)
{
string rendertype = material.GetTag("RenderType", true, "Opaque");
matdata.useAlpha = rendertype.Contains("Transparent") ? 1 : 0;
if (matdata.useAlpha == 1)
{
matdata.customDefines.Add("VSG_BLEND");
}
string lightmode = material.GetTag("LightMode", true, "ForwardBase");
if (lightmode != "Always")
{
matdata.customDefines.Add("VSG_LIGHTING");
}
}
// lastly process shaders now we know the defines etc it will use
string customDefinesStr = string.Join(",", matdata.customDefines.ToArray());
matdata.shaderStages = GetOrCreateShaderStagesInfo(mapping.shaders.ToArray(), customDefinesStr, null);
// add to the cache (double check it doesn't exist already)
if (material != null && !_materialDataCache.ContainsKey(matdata.id))
{
_materialDataCache[matdata.id] = matdata;
}
return(matdata);
}
public VkResourceSet(VkGraphicsDevice gd, ref ResourceSetDescription description)
: base(ref description)
{
_gd = gd;
RefCount = new ResourceRefCount(DisposeCore);
VkResourceLayout vkLayout = Util.AssertSubtype <ResourceLayout, VkResourceLayout>(description.Layout);
VkDescriptorSetLayout dsl = vkLayout.DescriptorSetLayout;
_descriptorCounts = vkLayout.DescriptorResourceCounts;
_descriptorAllocationToken = _gd.DescriptorPoolManager.Allocate(_descriptorCounts, dsl);
BindableResource[] boundResources = description.BoundResources;
uint descriptorWriteCount = (uint)boundResources.Length;
VkWriteDescriptorSet * descriptorWrites = stackalloc VkWriteDescriptorSet[(int)descriptorWriteCount];
VkDescriptorBufferInfo *bufferInfos = stackalloc VkDescriptorBufferInfo[(int)descriptorWriteCount];
VkDescriptorImageInfo * imageInfos = stackalloc VkDescriptorImageInfo[(int)descriptorWriteCount];
for (int i = 0; i < descriptorWriteCount; i++)
{
VkDescriptorType type = vkLayout.DescriptorTypes[i];
descriptorWrites[i].sType = VkStructureType.WriteDescriptorSet;
descriptorWrites[i].descriptorCount = 1;
descriptorWrites[i].descriptorType = type;
descriptorWrites[i].dstBinding = (uint)i;
descriptorWrites[i].dstSet = _descriptorAllocationToken.Set;
if (type == VkDescriptorType.UniformBuffer || type == VkDescriptorType.UniformBufferDynamic ||
type == VkDescriptorType.StorageBuffer || type == VkDescriptorType.StorageBufferDynamic)
{
DeviceBufferRange range = Util.GetBufferRange(boundResources[i], 0);
VkBuffer rangedVkBuffer = Util.AssertSubtype <DeviceBuffer, VkBuffer>(range.Buffer);
bufferInfos[i].buffer = rangedVkBuffer.DeviceBuffer;
bufferInfos[i].offset = range.Offset;
bufferInfos[i].range = range.SizeInBytes;
descriptorWrites[i].pBufferInfo = &bufferInfos[i];
_refCounts.Add(rangedVkBuffer.RefCount);
}
else if (type == VkDescriptorType.SampledImage)
{
TextureView texView = Util.GetTextureView(_gd, boundResources[i]);
VkTextureView vkTexView = Util.AssertSubtype <TextureView, VkTextureView>(texView);
imageInfos[i].imageView = vkTexView.ImageView;
imageInfos[i].imageLayout = VkImageLayout.ShaderReadOnlyOptimal;
descriptorWrites[i].pImageInfo = &imageInfos[i];
_sampledTextures.Add(Util.AssertSubtype <Texture, VkTexture>(texView.Target));
_refCounts.Add(vkTexView.RefCount);
}
else if (type == VkDescriptorType.StorageImage)
{
TextureView texView = Util.GetTextureView(_gd, boundResources[i]);
VkTextureView vkTexView = Util.AssertSubtype <TextureView, VkTextureView>(texView);
imageInfos[i].imageView = vkTexView.ImageView;
imageInfos[i].imageLayout = VkImageLayout.General;
descriptorWrites[i].pImageInfo = &imageInfos[i];
_storageImages.Add(Util.AssertSubtype <Texture, VkTexture>(texView.Target));
_refCounts.Add(vkTexView.RefCount);
}
else if (type == VkDescriptorType.Sampler)
{
VkSampler sampler = Util.AssertSubtype <BindableResource, VkSampler>(boundResources[i]);
imageInfos[i].sampler = sampler.DeviceSampler;
descriptorWrites[i].pImageInfo = &imageInfos[i];
_refCounts.Add(sampler.RefCount);
}
}
vkUpdateDescriptorSets(_gd.Device, descriptorWriteCount, descriptorWrites, 0, null);
}
public VkDescriptorPoolSize(VkDescriptorType descriptorType, uint count = 1)
{
type = descriptorType;
descriptorCount = count;
}
/// <summary>
/// Adds the given single element binding descriptor
/// </summary>
/// <param name="binding">Binding to add</param>
/// <param name="type">Binding type</param>
/// <param name="flags">Shader stages</param>
/// <param name="immutableSampler">Immutable sampler for the binding</param>
/// <returns>this</returns>
public DescriptorSetLayoutBuilder Add(uint binding, VkDescriptorType type, VkShaderStageFlag flags,
Sampler immutableSampler = null)
{
return(Add(binding, type, 1, flags, immutableSampler != null ? new[] { immutableSampler } : new Sampler[0]));
}
/// <summary>
/// VkDescriptorPoolSize - Structure specifying descriptor pool size
/// </summary>
/// <param name="type">type is the type of descriptor</param>
/// <param name="descriptorCount">descriptorCount is the number of descriptors of that type to
/// allocate.
/// If type is VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT then
/// descriptorCount is the number of bytes to allocate for descriptors
/// of this type</param>
public VkDescriptorPoolSize(VkDescriptorType type, UInt32 descriptorCount)
{
this.type = type;
this.descriptorCount = descriptorCount;
}
/// <summary>
/// VkDescriptorSetLayoutBinding - Structure specifying a descriptor set layout binding
/// </summary>
/// <param name="binding">binding is the binding number of this entry and corresponds to a
/// resource of the same binding number in the shader stages</param>
/// <param name="descriptorType">descriptorType is a VkDescriptorType specifying which type
/// of resource descriptors are used for this binding</param>
/// <param name="descriptorCount">descriptorCount is the number of descriptors contained in the
/// binding, accessed in a shader as an array
/// , except if descriptorType is
/// VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT in which case
/// descriptorCount is the size in bytes of the inline uniform block
/// .
/// If descriptorCount is zero this binding entry is reserved and the
/// resource must not be accessed from any stage via this binding within
/// any pipeline using the set layout</param>
/// <param name="stageFlags">stageFlags member is a bitmask of VkShaderStageFlagBits
/// specifying which pipeline shader stages can access a resource for this
/// binding.
/// VK_SHADER_STAGE_ALL is a shorthand specifying that all defined
/// shader stages, including any additional stages defined by extensions,
/// can access the resource</param>
public VkDescriptorSetLayoutBinding(UInt32 binding, VkDescriptorType descriptorType, UInt32 descriptorCount, VkShaderStageFlagBits stageFlags)
{
this.binding = binding; this.descriptorType = descriptorType;
this.descriptorCount = descriptorCount; this.stageFlags = stageFlags;
this.pImmutableSamplers = null;
}