using System;
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using System.Collections.Generic;
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namespace UnityEngine.PostProcessing
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{
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public sealed class RenderTextureFactory : IDisposable
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{
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HashSet<RenderTexture> m_TemporaryRTs;
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public RenderTextureFactory()
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{
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m_TemporaryRTs = new HashSet<RenderTexture>();
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}
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public RenderTexture Get(RenderTexture baseRenderTexture)
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{
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return Get(
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baseRenderTexture.width,
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baseRenderTexture.height,
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baseRenderTexture.depth,
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baseRenderTexture.format,
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baseRenderTexture.sRGB ? RenderTextureReadWrite.sRGB : RenderTextureReadWrite.Linear,
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baseRenderTexture.filterMode,
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baseRenderTexture.wrapMode
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);
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}
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public RenderTexture Get(int width, int height, int depthBuffer = 0, RenderTextureFormat format = RenderTextureFormat.ARGBHalf, RenderTextureReadWrite rw = RenderTextureReadWrite.Default, FilterMode filterMode = FilterMode.Bilinear, TextureWrapMode wrapMode = TextureWrapMode.Clamp, string name = "FactoryTempTexture")
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{
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var rt = RenderTexture.GetTemporary(width, height, depthBuffer, format);
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rt.filterMode = filterMode;
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rt.wrapMode = wrapMode;
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rt.name = name;
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m_TemporaryRTs.Add(rt);
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return rt;
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}
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public void Release(RenderTexture rt)
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{
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if (rt == null)
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return;
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if (!m_TemporaryRTs.Contains(rt))
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throw new ArgumentException(string.Format("Attempting to remove a RenderTexture that was not allocated: {0}", rt));
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m_TemporaryRTs.Remove(rt);
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RenderTexture.ReleaseTemporary(rt);
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}
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public void ReleaseAll()
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{
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var enumerator = m_TemporaryRTs.GetEnumerator();
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while (enumerator.MoveNext())
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RenderTexture.ReleaseTemporary(enumerator.Current);
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m_TemporaryRTs.Clear();
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}
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public void Dispose()
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{
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ReleaseAll();
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}
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}
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}
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