183 lines
8.7 KiB
C#
183 lines
8.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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namespace UnityEngine.XR.ARFoundation
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{
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/// <summary>
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/// A structure for camera-related information pertaining to a particular frame.
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/// This is used to communicate information in the <see cref="ARCameraManager.frameReceived" /> event.
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/// </summary>
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public struct ARCameraFrameEventArgs : IEquatable<ARCameraFrameEventArgs>
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{
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/// <summary>
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/// The <see cref="ARLightEstimationData" /> associated with this frame.
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/// </summary>
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public ARLightEstimationData lightEstimation { get; set; }
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/// <summary>
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/// The time, in nanoseconds, associated with this frame.
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/// Use <c>timestampNs.HasValue</c> to determine if this data is available.
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/// </summary>
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public long? timestampNs { get; set; }
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/// <summary>
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/// Gets or sets the projection matrix for the AR Camera. Use
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/// <c>projectionMatrix.HasValue</c> to determine if this data is available.
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/// </summary>
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public Matrix4x4? projectionMatrix { get; set; }
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/// <summary>
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/// Gets or sets the display matrix for use in the shader used
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/// by the <see cref="ARCameraBackground"/>.
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/// Use <c>displayMatrix.HasValue</c> to determine if this data is available.
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/// </summary>
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public Matrix4x4? displayMatrix { get; set; }
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/// <summary>
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/// The textures associated with this camera frame. These are generally
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/// external textures, which exist only on the GPU. To use them on the
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/// CPU, e.g., for computer vision processing, you will need to read
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/// them back from the GPU.
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/// </summary>
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public List<Texture2D> textures { get; set; }
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/// <summary>
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/// Ids of the property name associated with each texture. This is a
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/// parallel <c>List</c> to the <see cref="textures"/> list.
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/// </summary>
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public List<int> propertyNameIds { get; set; }
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/// <summary>
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/// The exposure duration in seconds with sub-millisecond precision. Used in calculating motion blur.
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/// </summary>
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/// <remarks>
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/// <see cref="exposureDuration"/> can be null if platform does not support exposure duration.
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/// </remarks>
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public double? exposureDuration { get; set; }
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/// <summary>
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/// The offset of camera exposure. Used to scale scene lighting in post-processed lighting stage.
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/// </summary>
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/// <remarks>
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/// <see cref="exposureOffset"/> can be null if platform does not support exposure offset.
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/// </remarks>
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public float? exposureOffset { get; set; }
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/// <summary>
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/// The list of keywords to be enabled for the material.
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/// </summary>
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public List<string> enabledMaterialKeywords { get; internal set; }
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/// <summary>
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/// The list of keywords to be disabled for the material.
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/// </summary>
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public List<string> disabledMaterialKeywords { get; internal set; }
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/// <summary>
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/// The camera grain texture effect.
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/// </summary>
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public Texture cameraGrainTexture { get; internal set; }
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/// <summary>
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/// The camera grain noise intensity.
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/// </summary>
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public float noiseIntensity { get; internal set; }
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/// <summary>
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/// Generates a hash suitable for use with containers like `HashSet` and `Dictionary`.
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/// </summary>
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/// <returns>A hash code generated from this object's fields.</returns>
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public override int GetHashCode()
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{
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unchecked
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{
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var hash = lightEstimation.GetHashCode();
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hash = hash * 486187739 + timestampNs.GetHashCode();
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hash = hash * 486187739 + projectionMatrix.GetHashCode();
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hash = hash * 486187739 + displayMatrix.GetHashCode();
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hash = hash * 486187739 + HashCodeUtil.ReferenceHash(textures);
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hash = hash * 486187739 + HashCodeUtil.ReferenceHash(propertyNameIds);
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hash = hash * 486187739 + exposureDuration.GetHashCode();
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hash = hash * 486187739 + exposureOffset.GetHashCode();
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hash = hash * 486187739 + cameraGrainTexture.GetHashCode();
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hash = hash * 486187739 + noiseIntensity.GetHashCode();
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hash = hash * 486187739 + (enabledMaterialKeywords == null ? 0 : enabledMaterialKeywords.GetHashCode());
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hash = hash * 486187739 + (disabledMaterialKeywords == null ? 0 : disabledMaterialKeywords.GetHashCode());
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return hash;
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}
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}
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/// <summary>
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/// Tests for equality.
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/// </summary>
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/// <param name="obj">The `object` to compare against.</param>
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/// <returns>`True` if <paramref name="obj"/> is of type <see cref="ARCameraFrameEventArgs"/> and
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/// <see cref="Equals(ARCameraFrameEventArgs)"/> also returns `true`; otherwise `false`.</returns>
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public override bool Equals(object obj)
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=> (obj is ARCameraFrameEventArgs) && Equals((ARCameraFrameEventArgs)obj);
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/// <summary>
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/// Generates a string representation of this struct suitable for debug
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/// logging.
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/// </summary>
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/// <returns>A string representation of this struct suitable for debug
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/// logging.</returns>
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public override string ToString()
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{
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var stringBuilder = new StringBuilder();
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stringBuilder.Append("lightEstimation: " + lightEstimation.ToString());
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stringBuilder.Append("\ntimestamp: " + timestampNs);
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if (timestampNs.HasValue)
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stringBuilder.Append("ns");
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stringBuilder.Append("\nprojectionMatrix: " + projectionMatrix);
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stringBuilder.Append("\ndisplayMatrix: " + displayMatrix);
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stringBuilder.Append("\ntexture count: " + (textures == null ? 0 : textures.Count));
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stringBuilder.Append("\npropertyNameId count: " + (propertyNameIds == null ? 0 : propertyNameIds.Count));
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return stringBuilder.ToString();
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}
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/// <summary>
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/// Tests for equality.
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/// </summary>
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/// <param name="other">The other <see cref="ARCameraFrameEventArgs"/> to compare against.</param>
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/// <returns>`True` if every field in <paramref name="other"/> is equal to this <see cref="ARCameraFrameEventArgs"/>, otherwise false.</returns>
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public bool Equals(ARCameraFrameEventArgs other)
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{
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return
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lightEstimation.Equals(other.lightEstimation)
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&& timestampNs == other.timestampNs
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&& projectionMatrix == other.projectionMatrix
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&& displayMatrix == other.displayMatrix
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&& ((textures == null) ? (other.textures == null) : textures.Equals(other.textures))
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&& ((propertyNameIds == null) ? (other.propertyNameIds == null)
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: propertyNameIds.Equals(other.propertyNameIds))
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&& (exposureDuration == other.exposureDuration)
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&& (exposureOffset == other.exposureOffset)
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&& (cameraGrainTexture == other.cameraGrainTexture)
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&& (noiseIntensity == other.noiseIntensity)
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&& ((enabledMaterialKeywords == null) ? (other.enabledMaterialKeywords == null)
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: enabledMaterialKeywords.Equals(other.enabledMaterialKeywords))
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&& ((disabledMaterialKeywords == null) ? (other.disabledMaterialKeywords == null)
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: disabledMaterialKeywords.Equals(other.disabledMaterialKeywords));
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}
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/// <summary>
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/// Tests for equality. Same as <see cref="Equals(ARCameraFrameEventArgs)"/>.
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/// </summary>
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/// <param name="lhs">The left-hand side of the comparison.</param>
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/// <param name="rhs">The right-hand side of the comparison.</param>
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/// <returns>`True` if <paramref name="lhs"/> is equal to <paramref name="rhs"/>, otherwise `false`.</returns>
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public static bool operator ==(ARCameraFrameEventArgs lhs, ARCameraFrameEventArgs rhs) => lhs.Equals(rhs);
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/// <summary>
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/// Tests for inequality. Same as `!`<see cref="Equals(ARCameraFrameEventArgs)"/>.
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/// </summary>
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/// <param name="lhs">The left-hand side of the comparison.</param>
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/// <param name="rhs">The right-hand side of the comparison.</param>
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/// <returns>`True` if <paramref name="lhs"/> is not equal to <paramref name="rhs"/>, otherwise `false`.</returns>
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public static bool operator !=(ARCameraFrameEventArgs lhs, ARCameraFrameEventArgs rhs) => !lhs.Equals(rhs);
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}
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}
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