65 lines
2.0 KiB
C#
65 lines
2.0 KiB
C#
using System;
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using Unity.XR.CoreUtils;
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using UnityEngine.XR.ARSubsystems;
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namespace UnityEngine.XR.ARFoundation
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{
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class UpdatableTexture3D : IUpdatableTexture
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{
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XRTextureDescriptor IUpdatableTexture.descriptor => m_Descriptor;
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XRTextureDescriptor m_Descriptor;
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Texture IUpdatableTexture.texture => m_Texture;
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Texture3D m_Texture;
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internal UpdatableTexture3D(XRTextureDescriptor descriptor)
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{
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if (descriptor.textureType != XRTextureType.Texture3D)
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throw new ArgumentException($"Expected Texture3D but descriptor was of type {descriptor.textureType}");
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m_Descriptor = descriptor;
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m_Texture = CreateTextureFromDescriptor(descriptor);
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}
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static Texture3D CreateTextureFromDescriptor(XRTextureDescriptor descriptor)
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{
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return Texture3D.CreateExternalTexture(
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width: descriptor.width,
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height: descriptor.height,
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depth: descriptor.depth,
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format: descriptor.format,
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mipChain: descriptor.mipmapCount > 1,
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nativeTex: descriptor.nativeTexture);
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}
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bool IUpdatableTexture.TryUpdateFromDescriptor(XRTextureDescriptor newDescriptor)
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{
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if (m_Descriptor == newDescriptor)
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return true;
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if (m_Descriptor.hasIdenticalTextureMetadata(newDescriptor))
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{
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m_Texture.UpdateExternalTexture(newDescriptor.nativeTexture);
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m_Descriptor = newDescriptor;
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return true;
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}
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UnityObjectUtils.Destroy(m_Texture);
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m_Texture = CreateTextureFromDescriptor(newDescriptor);
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m_Descriptor = newDescriptor;
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return true;
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}
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public void DestroyTexture()
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{
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UnityObjectUtils.Destroy(m_Texture);
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m_Descriptor = default;
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}
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void IDisposable.Dispose()
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{
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DestroyTexture();
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}
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}
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}
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