wehub-resource-sync
77 lines
2.8 KiB
C#
77 lines
2.8 KiB
C#
using SharpDX.Direct3D;
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using SharpDX.Direct3D11;
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using T3.Core.Utils;
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namespace Lib.render._dx11.api;
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[Guid("c2078514-cf1d-439c-a732-0d7b31b5084a")]
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internal sealed class SrvFromTexture2d : Instance<SrvFromTexture2d>
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{
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[Output(Guid = "{DC71F39F-3FBA-4FC6-B8EF-CE57C82BF78E}")]
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public readonly Slot<ShaderResourceView> ShaderResourceView = new();
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public SrvFromTexture2d()
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{
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ShaderResourceView.UpdateAction += Update;
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}
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private void Update(EvaluationContext context)
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{
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var texture = Texture.GetValue(context);
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if (texture != null && ShaderResourceView.Value != null && texture.GetHashCode() == _textureHash)
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return;
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_textureHash = texture?.GetHashCode() ?? 0;
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try
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{
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if (texture != null)
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{
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ShaderResourceView.Value?.Dispose();
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if ((texture.Description.BindFlags & BindFlags.DepthStencil) > 0)
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{
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// it's a depth stencil texture, so we need to set the format explicitly
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var desc = new ShaderResourceViewDescription()
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{
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Format = Format.R32_Float,
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Dimension = ShaderResourceViewDimension.Texture2D,
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Texture2D = new ShaderResourceViewDescription.Texture2DResource
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{
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MipLevels = 1,
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MostDetailedMip = 0
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}
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};
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ShaderResourceView.Value = new ShaderResourceView(ResourceManager.Device, texture, desc);
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}
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else
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{
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// todo: create via resource manager
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// Sadly, this is not straight forward, because the texture resources are created and
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// disposed in various situations that are not really evident (e.g. in AbstractResource).
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ShaderResourceView.Value = new ShaderResourceView(ResourceManager.Device, texture);
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}
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}
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else
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{
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Utilities.Dispose(ref ShaderResourceView.Value);
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}
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_complainedOnce = false;
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}
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catch (Exception e)
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{
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if(!_complainedOnce)
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Log.Error("Updating Shader Resource View failed: " + e.Message, this);
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_complainedOnce = true;
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}
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}
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private bool _complainedOnce = false;
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private int _textureHash;
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[Input(Guid = "{D5AFA102-2F88-431E-9CD4-AF91E41F88F6}")]
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public readonly InputSlot<Texture2D> Texture = new();
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} |