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Assets/AVProVideo/Runtime/Scripts/Components/ApplyToMaterial.cs
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335
Assets/AVProVideo/Runtime/Scripts/Components/ApplyToMaterial.cs
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//-----------------------------------------------------------------------------
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// Copyright 2015-2024 RenderHeads Ltd. All rights reserved.
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//-----------------------------------------------------------------------------
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#if UNITY_EDITOR_OSX || UNITY_STANDALONE_OSX || UNITY_IOS || UNITY_TVOS || UNITY_VISIONOS
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#define UNITY_PLATFORM_SUPPORTS_YPCBCR
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#endif
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using UnityEngine;
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namespace RenderHeads.Media.AVProVideo
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{
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/// <summary>
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/// Sets up a material to display the video from a MediaPlayer
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/// </summary>
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[AddComponentMenu("AVPro Video/Apply To Material", 300)]
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[HelpURL("https://www.renderheads.com/products/avpro-video/")]
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public sealed class ApplyToMaterial : ApplyToBase
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{
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[Header("Display")]
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[Tooltip("Default texture to display when the video texture is preparing")]
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[SerializeField]
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Texture2D _defaultTexture = null;
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public Texture2D DefaultTexture
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{
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get
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{
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return _defaultTexture;
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}
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set
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{
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if (_defaultTexture != value)
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{
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_defaultTexture = value;
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_isDirty = true;
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}
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}
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}
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[Space(8f)]
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[Header("Material Target")]
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[SerializeField]
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Material _material = null;
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public Material Material
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{
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get
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{
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return _material;
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}
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set
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{
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if (_material != value)
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{
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_material = value;
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_isDirty = true;
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}
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}
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}
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[SerializeField]
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string _texturePropertyName = Helper.UnityBaseTextureName;
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public string TexturePropertyName
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{
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get
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{
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return _texturePropertyName;
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}
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set
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{
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if (_texturePropertyName != value)
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{
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_texturePropertyName = value;
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_propTexture = new LazyShaderProperty(_texturePropertyName);
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_propTexture_R = new LazyShaderProperty(_texturePropertyName + "_R");
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_isDirty = true;
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}
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}
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}
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[SerializeField]
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Vector2 _offset = Vector2.zero;
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public Vector2 Offset
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{
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get
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{
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return _offset;
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}
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set
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{
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if (_offset != value)
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{
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_offset = value;
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_isDirty = true;
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}
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}
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}
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[SerializeField]
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Vector2 _scale = Vector2.one;
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public Vector2 Scale
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{
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get
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{
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return _scale;
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}
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set
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{
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if (_scale != value)
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{
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_scale = value;
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_isDirty = true;
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}
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}
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}
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private Texture _lastTextureApplied;
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private LazyShaderProperty _propTexture;
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private LazyShaderProperty _propTexture_R; // Default property for the right-eye texture
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private Texture _originalTexture;
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private Vector2 _originalScale = Vector2.one;
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private Vector2 _originalOffset = Vector2.zero;
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// We do a LateUpdate() to allow for any changes in the texture that may have happened in Update()
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private void LateUpdate()
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{
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Apply();
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}
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public override void Apply()
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{
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bool applied = false;
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if (_media != null && _media.TextureProducer != null)
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{
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Texture resamplerTex = _media.FrameResampler == null || _media.FrameResampler.OutputTexture == null ? null : _media.FrameResampler.OutputTexture[0];
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Texture texture = _media.UseResampler ? resamplerTex : _media.TextureProducer.GetTexture(0);
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if (texture != null)
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{
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// Check for changing texture
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if (texture != _lastTextureApplied)
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{
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_isDirty = true;
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}
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if (_isDirty)
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{
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bool requiresVerticalFlip = _media.TextureProducer.RequiresVerticalFlip();
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StereoPacking stereoPacking = _media.TextureProducer.GetTextureStereoPacking();
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bool isMultiview = stereoPacking == StereoPacking.MultiviewLeftPrimary || stereoPacking == StereoPacking.MultiviewRightPrimary;
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int planeCount = 1;
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if (!_media.UseResampler)
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{
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// We're not using the resampler so the number of planes will be the texture count
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planeCount = _media.TextureProducer.GetTextureCount();
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if (isMultiview)
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{
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// Unless we're using two texture stereo in which case it'll be half the texture count
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planeCount /= 2;
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}
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}
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for (int plane = 0; plane < planeCount; ++plane)
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{
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Texture resamplerTexPlane = _media.FrameResampler == null || _media.FrameResampler.OutputTexture == null ? null : _media.FrameResampler.OutputTexture[plane];
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texture = _media.UseResampler ? resamplerTexPlane : _media.TextureProducer.GetTexture(plane);
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if (texture != null)
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{
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ApplyMapping(texture, requiresVerticalFlip, plane);
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}
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}
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// Handle the right eye if we're using two texture stereo packing
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if (isMultiview)
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{
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for (int plane = 0; plane < planeCount; ++plane)
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{
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texture = _media.TextureProducer.GetTexture(planeCount + plane);
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if (texture != null)
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{
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ApplyMapping(texture, requiresVerticalFlip, plane, Eye.Right);
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}
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}
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}
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}
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applied = true;
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}
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}
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// If the media didn't apply a texture, then try to apply the default texture
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if (!applied)
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{
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if (_defaultTexture != _lastTextureApplied)
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{
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_isDirty = true;
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}
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if (_isDirty)
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{
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#if UNITY_PLATFORM_SUPPORTS_YPCBCR
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if (_material != null && _material.HasProperty(VideoRender.PropUseYpCbCr.Id))
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{
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_material.DisableKeyword(VideoRender.Keyword_UseYpCbCr);
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}
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#endif
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ApplyMapping(_defaultTexture, false);
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}
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}
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}
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enum Eye
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{
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Left,
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Right
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="texture"></param>
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/// <param name="requiresYFlip"></param>
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/// <param name="plane"></param>
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/// <param name="eye">Which eye we're mapping, defaults to the left eye</param>
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private void ApplyMapping(Texture texture, bool requiresYFlip, int plane = 0, Eye eye = Eye.Left)
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{
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if (_material != null)
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{
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_isDirty = false;
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if (plane == 0)
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{
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int propTextureId = _propTexture.Id;
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if (eye == Eye.Left)
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{
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VideoRender.SetupMaterialForMedia(_material, _media, propTextureId, texture, texture == _defaultTexture);
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_lastTextureApplied = texture;
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#if !UNITY_EDITOR && UNITY_ANDROID
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if (texture == _defaultTexture)
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{
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_material.EnableKeyword("USING_DEFAULT_TEXTURE");
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}
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else
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{
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_material.DisableKeyword("USING_DEFAULT_TEXTURE");
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}
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#endif
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}
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else
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{
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propTextureId = _propTexture_R.Id;
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_material.SetTexture(propTextureId, texture);
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}
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if (texture != null)
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{
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if (requiresYFlip)
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{
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_material.SetTextureScale(propTextureId, new Vector2(_scale.x, -_scale.y));
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_material.SetTextureOffset(propTextureId, Vector2.up + _offset);
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}
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else
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{
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_material.SetTextureScale(propTextureId, _scale);
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_material.SetTextureOffset(propTextureId, _offset);
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}
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}
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}
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else if (plane == 1)
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{
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if (texture != null)
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{
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if (requiresYFlip)
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{
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_material.SetTextureScale(VideoRender.PropChromaTex.Id, new Vector2(_scale.x, -_scale.y));
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_material.SetTextureOffset(VideoRender.PropChromaTex.Id, Vector2.up + _offset);
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}
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else
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{
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_material.SetTextureScale(VideoRender.PropChromaTex.Id, _scale);
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_material.SetTextureOffset(VideoRender.PropChromaTex.Id, _offset);
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}
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}
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}
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}
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}
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protected override void SaveProperties()
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{
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if (_material != null)
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{
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if (string.IsNullOrEmpty(_texturePropertyName))
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{
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_originalTexture = _material.mainTexture;
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_originalScale = _material.mainTextureScale;
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_originalOffset = _material.mainTextureOffset;
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}
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else
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{
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_originalTexture = _material.GetTexture(_texturePropertyName);
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_originalScale = _material.GetTextureScale(_texturePropertyName);
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_originalOffset = _material.GetTextureOffset(_texturePropertyName);
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}
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}
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_propTexture = new LazyShaderProperty(_texturePropertyName);
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_propTexture_R = new LazyShaderProperty(_texturePropertyName + "_R");
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}
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protected override void RestoreProperties()
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{
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if (_material != null)
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{
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if (string.IsNullOrEmpty(_texturePropertyName))
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{
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_material.mainTexture = _originalTexture;
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_material.mainTextureScale = _originalScale;
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_material.mainTextureOffset = _originalOffset;
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}
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else
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{
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_material.SetTexture(_texturePropertyName, _originalTexture);
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_material.SetTextureScale(_texturePropertyName, _originalScale);
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_material.SetTextureOffset(_texturePropertyName, _originalOffset);
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}
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}
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}
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}
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}
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