/// <summary>
/// Constructs a new ResourceLayoutElementDescription.
/// </summary>
/// <param name="name">The name of the element.</param>
/// <param name="kind">The kind of resource.</param>
/// <param name="stages">The <see cref="ShaderStages"/> in which this element is used.</param>
public ResourceLayoutElementDescription(string name, ResourceKind kind, ShaderStages stages)
{
Name = name;
Kind = kind;
Stages = stages;
Options = ResourceLayoutElementOptions.None;
}
public static IUniform <T> Create(string name,
BufferUsage bufferUsage,
ShaderStages shaderStages,
ResourceLayoutElementOptions options = ResourceLayoutElementOptions.None)
{
return(new Uniform <T>(name, bufferUsage, shaderStages, options));
}
internal static VkDescriptorType VdToVkDescriptorType(ResourceKind kind, ResourceLayoutElementOptions options)
{
bool dynamicBinding = (options & ResourceLayoutElementOptions.DynamicBinding) != 0;
switch (kind)
{
case ResourceKind.UniformBuffer:
return(dynamicBinding ? VkDescriptorType.UniformBufferDynamic : VkDescriptorType.UniformBuffer);
case ResourceKind.StructuredBufferReadWrite:
case ResourceKind.StructuredBufferReadOnly:
return(dynamicBinding ? VkDescriptorType.StorageBufferDynamic : VkDescriptorType.StorageBuffer);
case ResourceKind.TextureReadOnly:
return(VkDescriptorType.SampledImage);
case ResourceKind.TextureReadWrite:
return(VkDescriptorType.StorageImage);
case ResourceKind.Sampler:
return(VkDescriptorType.Sampler);
default:
throw Illegal.Value <ResourceKind>();
}
}
/// <summary>
/// Constructs a new ResourceLayoutElementDescription.
/// </summary>
/// <param name="name">The name of the element.</param>
/// <param name="kind">The kind of resource.</param>
/// <param name="stages">The <see cref="ShaderStages"/> in which this element is used.</param>
/// <param name="descCount">The number of descriptors to use.</param>
public ResourceLayoutElementDescription(string name, ResourceKind kind, ShaderStages stages, uint descCount)
{
Name = name;
Kind = kind;
Stages = stages;
Options = ResourceLayoutElementOptions.None;
DescriptorCount = descCount;
}
/// <summary>
/// Constructs a new ResourceLayoutElementDescription.
/// </summary>
/// <param name="name">The name of the element.</param>
/// <param name="kind">The kind of resource.</param>
/// <param name="stages">The <see cref="ShaderStages"/> in which this element is used.</param>
/// <param name="options">Miscellaneous resource options for this element.</param>
public ResourceLayoutElementDescription(
string name,
ResourceKind kind,
ShaderStages stages,
ResourceLayoutElementOptions options)
{
Name = name;
Kind = kind;
Stages = stages;
Options = options;
DescriptorCount = 1;
}
internal Uniform(string name,
BufferUsage bufferUsage,
ShaderStages shaderStages,
ResourceLayoutElementOptions options)
{
BufferUsage = bufferUsage;
ShaderStages = shaderStages;
ResourceLayoutElementDescription = new ResourceLayoutElementDescription(
name,
ResourceKind.UniformBuffer,
ShaderStages,
options);
}
