wehub-resource-sync
51 lines
2.1 KiB
C#
51 lines
2.1 KiB
C#
using SharpDX.Direct3D;
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using SharpDX.Direct3D11;
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namespace Lib.render._dx11.api;
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[Guid("8c41b312-6628-411c-a61d-604413b73a72")]
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internal sealed class SrvFromStructuredBuffer : Instance<SrvFromStructuredBuffer>
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{
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[Output(Guid = "2A1FCDF6-9416-45B2-96CA-A9D6D2692278")]
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public readonly Slot<ShaderResourceView> ShaderResourceView = new();
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[Output(Guid = "E96EED5C-AE63-49B7-8ADD-2A818E4A2B89")]
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public readonly Slot<int> ElementCount = new();
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public SrvFromStructuredBuffer()
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{
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ShaderResourceView.UpdateAction += Update;
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ElementCount.UpdateAction += Update;
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}
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private void Update(EvaluationContext context)
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{
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var buffer = Buffer.GetValue(context);
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if (buffer != null)
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{
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if ((buffer.Description.OptionFlags & ResourceOptionFlags.BufferStructured) == 0)
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{
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Log.Warning($"{nameof(SrvFromStructuredBuffer)} - input buffer is not structured, skipping SRV creation.", this);
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return;
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}
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ShaderResourceView.Value?.Dispose();
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var elementCount = buffer.Description.SizeInBytes / buffer.Description.StructureByteStride;
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var desc = new ShaderResourceViewDescription()
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{
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Dimension = ShaderResourceViewDimension.ExtendedBuffer,
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Format = Format.Unknown,
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BufferEx = new ShaderResourceViewDescription.ExtendedBufferResource()
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{
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FirstElement = 0,
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ElementCount = elementCount
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}
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};
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ShaderResourceView.Value = new ShaderResourceView(ResourceManager.Device, buffer, desc); // todo: create via resource manager
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ElementCount.Value = elementCount;
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}
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}
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[Input(Guid = "BD65EF2C-F32A-4279-BB5C-7F6467B23283")]
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public readonly InputSlot<Buffer> Buffer = new();
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} |