private void CopyUnsafe(GraphicsTextureView destination, GraphicsBufferView source)
{
var d3d12DestinationTextureCopyLocation = new D3D12_TEXTURE_COPY_LOCATION(destination.Resource.D3D12Resource, Sub: destination.D3D12SubresourceIndex);
var d3d12SourceTextureCopyLocation = new D3D12_TEXTURE_COPY_LOCATION(source.Resource.D3D12Resource, in destination.D3D12PlacedSubresourceFootprints[0]);
d3d12SourceTextureCopyLocation.PlacedFootprint.Offset = source.ByteOffset;
D3D12GraphicsCommandList->CopyTextureRegion(&d3d12DestinationTextureCopyLocation, DstX: 0, DstY: 0, DstZ: 0, &d3d12SourceTextureCopyLocation, pSrcBox: null);
}
/// <summary>Copies the contents from a buffer view to a texture view.</summary>
/// <param name="destination">The destination texture view.</param>
/// <param name="source">The source buffer view.</param>
/// <exception cref="ArgumentNullException"><paramref name="destination" /> is <c>null</c>.</exception>
/// <exception cref="ArgumentNullException"><paramref name="source" /> is <c>null</c>.</exception>
/// <exception cref="ArgumentOutOfRangeException">The size <paramref name="destination" /> is less than the size of <paramref name="source" />.</exception>
/// <exception cref="ObjectDisposedException">The copy context has been disposed.</exception>
public void Copy(GraphicsTextureView destination, GraphicsBufferView source)
{
ThrowIfDisposed();
ThrowIfNull(destination);
ThrowIfNull(source);
ThrowIfNotInInsertBounds(source.ByteLength, destination.ByteLength);
CopyUnsafe(destination, source);
}
/// <summary>Binds an index buffer view to the context.</summary>
/// <param name="indexBufferView">The index buffer view to set.</param>
/// <exception cref="ArgumentNullException"><paramref name="indexBufferView" /> is <c>null</c>.</exception>
public void BindIndexBufferView(GraphicsBufferView indexBufferView)
{
ThrowIfNull(indexBufferView);
var d3d12IndexBufferView = new D3D12_INDEX_BUFFER_VIEW {
BufferLocation = indexBufferView.D3D12GpuVirtualAddress,
SizeInBytes = checked ((uint)indexBufferView.ByteLength),
Format = indexBufferView.BytesPerElement == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT,
};
D3D12GraphicsCommandList->IASetIndexBuffer(&d3d12IndexBufferView);
}
/// <summary>Binds a vertex buffer view to the context.</summary>
/// <param name="vertexBufferView">The vertex buffer view to bind.</param>
/// <param name="bindingSlot">The binding slot to which <paramref name="vertexBufferView" /> should be bound.</param>
/// <exception cref="ArgumentNullException"><paramref name="vertexBufferView" /> is <c>null</c>.</exception>
public void BindVertexBufferView(GraphicsBufferView vertexBufferView, uint bindingSlot = 0)
{
ThrowIfNull(vertexBufferView);
var d3d12VertexBufferView = new D3D12_VERTEX_BUFFER_VIEW {
BufferLocation = vertexBufferView.D3D12GpuVirtualAddress,
StrideInBytes = vertexBufferView.BytesPerElement,
SizeInBytes = checked ((uint)vertexBufferView.ByteLength),
};
D3D12GraphicsCommandList->IASetVertexBuffers(bindingSlot, NumViews: 1, &d3d12VertexBufferView);
}
/// <summary>Initializes a new instance of the <see cref="GraphicsPrimitive" /> class.</summary>
/// <param name="pipeline">The pipeline for which the graphics primitive was created.</param>
/// <param name="vertexBufferView">The vertex buffer view for the primitive.</param>
/// <param name="indexBufferView">The index buffer view for the primitive or <c>null</c> if none exists.</param>
/// <param name="resourceViews">The resource views for the primitive or <c>empty</c> if none exists.</param>
public GraphicsPrimitive(GraphicsPipeline pipeline, GraphicsBufferView vertexBufferView, GraphicsBufferView?indexBufferView = null, ReadOnlySpan <GraphicsResourceView> resourceViews = default) : base(pipeline)
{
_indexBufferView = indexBufferView;
_pipelineDescriptorSet = !resourceViews.IsEmpty ? pipeline.CreateDescriptorSet(resourceViews) : null;
_vertexBufferView = vertexBufferView;
}
private void CopyUnsafe(GraphicsBufferView destination, GraphicsBufferView source)
{
D3D12GraphicsCommandList->CopyBufferRegion(destination.Resource.D3D12Resource, destination.ByteOffset, source.Resource.D3D12Resource, source.ByteOffset, source.ByteLength);
}
