/// <summary>
/// Create a new pipeline with the given description, for use in the given renderer and subpass.
/// </summary>
/// <param name="description">The description of the pipeline states to build into the pipeline.</param>
/// <param name="renderer">The renderer to use the pipeline in.</param>
/// <param name="subpass">The subpass index within the renderer to use the pipeline in.</param>
public Pipeline(PipelineDescription description, Renderer renderer, uint subpass)
: base(ResourceType.Pipeline)
{
// Create the pipeline handle
Handle = CreatePipeline(description, renderer, subpass, out var cache);
if (renderer.MSAALayout is not null)
{
BuildCache = cache; // Only save cache if we might rebuild from MSAA change
}
// Assign fields
Layout = description.Shader !.Layout;
Layout.IncRefCount();
ShaderProgram = description.Shader.Program;
ShaderProgram.IncRefCount();
Renderer = renderer;
Subpass = subpass;
// Assign values
VertexBindingCount = (uint)cache.VertexBindings.Length;
// Register to the renderer
renderer.AddPipeline(this);
}
// Internal constructor
internal Material(ShaderLayout layout, ShaderProgram program, MaterialInput input, MaterialOutput output)
{
// Assign objects
Layout = layout;
Program = program;
Layout.IncRefCount();
Program.IncRefCount();
Input = input;
Output = output;
// Validate vertex inputs
if (input.Vertices.Count > 0)
{
uint vmask = 0;
foreach (var vd in input.Vertices)
{
if ((vmask & vd.LocationMask) != 0)
{
throw new ArgumentException("Duplicate vertex location in descriptions", nameof(input));
}
vmask |= vd.LocationMask;
}
if (vmask != Layout.VertexLocationMask)
{
throw new ArgumentException(
$"Missing vertex location in material descriptions ({vmask:X8} != {Layout.VertexLocationMask:X8})",
nameof(input));
}
}
// Validate outputs
if (output.BlendStates.Count != layout.FragmentOutputs.Count)
{
throw new ArgumentException("Output count mismatch", nameof(output));
}
}