using System;
using UnityEngine;

namespace RenderHeads.Media.AVProVideo
{
	[AddComponentMenu("AVPro Video/Apply To Material", 300)]
	[HelpURL("http://renderheads.com/product/avpro-video/")]
	public class ApplyToMaterial : MonoBehaviour
	{
		private void Awake()
		{
			if (ApplyToMaterial._propStereo == 0 || ApplyToMaterial._propAlphaPack == 0)
			{
				ApplyToMaterial._propStereo = Shader.PropertyToID("Stereo");
				ApplyToMaterial._propAlphaPack = Shader.PropertyToID("AlphaPack");
				ApplyToMaterial._propApplyGamma = Shader.PropertyToID("_ApplyGamma");
			}
			if (ApplyToMaterial._propChromaTex == 0)
			{
				ApplyToMaterial._propChromaTex = Shader.PropertyToID("_ChromaTex");
			}
			if (ApplyToMaterial._propUseYpCbCr == 0)
			{
				ApplyToMaterial._propUseYpCbCr = Shader.PropertyToID("_UseYpCbCr");
			}
		}

		private void LateUpdate()
		{
			bool flag = false;
			if (this._media != null && this._media.TextureProducer != null)
			{
				int num = (!this._media.m_Resample) ? this._media.TextureProducer.GetTextureCount() : 1;
				for (int i = 0; i < num; i++)
				{
					Texture texture = (this._media.FrameResampler != null && this._media.FrameResampler.OutputTexture != null) ? this._media.FrameResampler.OutputTexture[i] : null;
					Texture texture2 = (!this._media.m_Resample) ? this._media.TextureProducer.GetTexture(i) : texture;
					if (texture2 != null)
					{
						this.ApplyMapping(texture2, this._media.TextureProducer.RequiresVerticalFlip(), i);
						flag = true;
					}
				}
			}
			if (!flag)
			{
				if (this._material.HasProperty(ApplyToMaterial._propUseYpCbCr))
				{
					this._material.DisableKeyword("USE_YPCBCR");
				}
				this.ApplyMapping(this._defaultTexture, false, 0);
			}
		}

		private void ApplyMapping(Texture texture, bool requiresYFlip, int plane = 0)
		{
			if (this._material != null)
			{
				if (plane == 0)
				{
					if (string.IsNullOrEmpty(this._texturePropertyName))
					{
						this._material.mainTexture = texture;
						if (texture != null)
						{
							if (requiresYFlip)
							{
								this._material.mainTextureScale = new Vector2(this._scale.x, -this._scale.y);
								this._material.mainTextureOffset = Vector2.up + this._offset;
							}
							else
							{
								this._material.mainTextureScale = this._scale;
								this._material.mainTextureOffset = this._offset;
							}
						}
					}
					else
					{
						this._material.SetTexture(this._texturePropertyName, texture);
						if (texture != null)
						{
							if (requiresYFlip)
							{
								this._material.SetTextureScale(this._texturePropertyName, new Vector2(this._scale.x, -this._scale.y));
								this._material.SetTextureOffset(this._texturePropertyName, Vector2.up + this._offset);
							}
							else
							{
								this._material.SetTextureScale(this._texturePropertyName, this._scale);
								this._material.SetTextureOffset(this._texturePropertyName, this._offset);
							}
						}
					}
				}
				else if (plane == 1)
				{
					if (this._material.HasProperty(ApplyToMaterial._propUseYpCbCr))
					{
						this._material.EnableKeyword("USE_YPCBCR");
					}
					if (this._material.HasProperty(ApplyToMaterial._propChromaTex))
					{
						this._material.SetTexture(ApplyToMaterial._propChromaTex, texture);
						if (texture != null)
						{
							if (requiresYFlip)
							{
								this._material.SetTextureScale(ApplyToMaterial._propChromaTex, new Vector2(this._scale.x, -this._scale.y));
								this._material.SetTextureOffset(ApplyToMaterial._propChromaTex, Vector2.up + this._offset);
							}
							else
							{
								this._material.SetTextureScale(ApplyToMaterial._propChromaTex, this._scale);
								this._material.SetTextureOffset(ApplyToMaterial._propChromaTex, this._offset);
							}
						}
					}
				}
				if (this._media != null)
				{
					if (this._material.HasProperty(ApplyToMaterial._propStereo))
					{
						Helper.SetupStereoMaterial(this._material, this._media.m_StereoPacking, this._media.m_DisplayDebugStereoColorTint);
					}
					if (this._material.HasProperty(ApplyToMaterial._propAlphaPack))
					{
						Helper.SetupAlphaPackedMaterial(this._material, this._media.m_AlphaPacking);
					}
					if (this._material.HasProperty(ApplyToMaterial._propApplyGamma) && this._media.Info != null)
					{
						Helper.SetupGammaMaterial(this._material, this._media.Info.PlayerSupportsLinearColorSpace());
					}
				}
			}
		}

		private void Start()
		{
			this.SaveProperties();
			this.LateUpdate();
		}

		private void OnEnable()
		{
			this.SaveProperties();
			this.LateUpdate();
		}

		private void OnDisable()
		{
			this.RestoreProperties();
		}

		private void SaveProperties()
		{
			if (this._material != null)
			{
				if (string.IsNullOrEmpty(this._texturePropertyName))
				{
					this._originalTexture = this._material.mainTexture;
					this._originalScale = this._material.mainTextureScale;
					this._originalOffset = this._material.mainTextureOffset;
				}
				else
				{
					this._originalTexture = this._material.GetTexture(this._texturePropertyName);
					this._originalScale = this._material.GetTextureScale(this._texturePropertyName);
					this._originalOffset = this._material.GetTextureOffset(this._texturePropertyName);
				}
			}
		}

		private void RestoreProperties()
		{
			if (this._material != null)
			{
				if (string.IsNullOrEmpty(this._texturePropertyName))
				{
					this._material.mainTexture = this._originalTexture;
					this._material.mainTextureScale = this._originalScale;
					this._material.mainTextureOffset = this._originalOffset;
				}
				else
				{
					this._material.SetTexture(this._texturePropertyName, this._originalTexture);
					this._material.SetTextureScale(this._texturePropertyName, this._originalScale);
					this._material.SetTextureOffset(this._texturePropertyName, this._originalOffset);
				}
			}
		}

		public Vector2 _offset = Vector2.zero;

		public Vector2 _scale = Vector2.one;

		public Material _material;

		public string _texturePropertyName;

		public MediaPlayer _media;

		public Texture2D _defaultTexture;

		private Texture _originalTexture;

		private Vector2 _originalScale = Vector2.one;

		private Vector2 _originalOffset = Vector2.zero;

		private static int _propStereo;

		private static int _propAlphaPack;

		private static int _propApplyGamma;

		private const string PropChromaTexName = "_ChromaTex";

		private static int _propChromaTex;

		private const string PropUseYpCbCrName = "_UseYpCbCr";

		private static int _propUseYpCbCr;
	}
}