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#region License
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/* FNA - XNA4 Reimplementation for Desktop Platforms
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* Copyright 2009-2020 Ethan Lee and the MonoGame Team
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*
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* Released under the Microsoft Public License.
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* See LICENSE for details.
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*/
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#endregion
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#region Using Statements
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using System;
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using Microsoft.Xna.Framework.Graphics;
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#endregion
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namespace Microsoft.Xna.Framework.Content
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{
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internal class Texture3DReader : ContentTypeReader<Texture3D>
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{
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#region Protected Read Method
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protected internal override Texture3D Read(
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ContentReader reader,
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Texture3D existingInstance
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) {
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Texture3D texture;
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SurfaceFormat format = (SurfaceFormat) reader.ReadInt32();
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int width = reader.ReadInt32();
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int height = reader.ReadInt32();
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int depth = reader.ReadInt32();
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int levelCount = reader.ReadInt32();
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if (existingInstance == null)
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{
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texture = new Texture3D(
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reader.ContentManager.GetGraphicsDevice(),
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width,
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height,
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depth,
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levelCount > 1,
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format
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);
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}
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else
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{
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texture = existingInstance;
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}
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for (int i = 0; i < levelCount; i += 1)
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{
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int dataSize = reader.ReadInt32();
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byte[] data = reader.ReadBytes(dataSize);
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texture.SetData(
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i,
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0,
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0,
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width,
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height,
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0,
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depth,
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data,
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0,
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dataSize
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);
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// Calculate dimensions of next mip level.
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width = Math.Max(width >> 1, 1);
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height = Math.Max(height >> 1, 1);
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depth = Math.Max(depth >> 1, 1);
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}
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return texture;
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}
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#endregion
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}
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}
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