alysbrooks-public » games » isometric-park-fna

Location: alysbrooks-public/games/isometric-park-fna/FNA/src/Content/ContentReaders/Texture2DReader.cs

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Commit Description:
Add timers for Simulation and various engines...
Commit Description:
Add timers for Simulation and various engines Starting to add additional timers for different stages of the process of updating in order to get more insight into what is slowing it down. The update takes 9ms, which is much longer than it used to. Engine-specific timers are coming later.
References:
r588:3b7b6298ad9c m6-tiles-and-trees
File last commit:
r0:e33f209de7e5 default
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Action:
FNA/src/Content/ContentReaders/Texture2DReader.cs
257 lines | 5.9 KiB | text/x-csharp | CSharpLexer
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#region License
/* FNA - XNA4 Reimplementation for Desktop Platforms
* Copyright 2009-2020 Ethan Lee and the MonoGame Team
*
* Released under the Microsoft Public License.
* See LICENSE for details.
*/
/* Derived from code by the Mono.Xna Team (Copyright 2006).
* Released under the MIT License. See monoxna.LICENSE for details.
*/
#endregion
#region Using Statements
using System;
using System.IO;
using Microsoft.Xna.Framework.Graphics;
#endregion
namespace Microsoft.Xna.Framework.Content
{
internal class Texture2DReader : ContentTypeReader<Texture2D>
{
#region Private Supported File Extensions Variable
private static string[] supportedExtensions = new string[]
{
".bmp", ".gif", ".jpg", ".jpeg", ".png", ".tga", ".tif", ".tiff", ".dds"
};
#endregion
#region Internal Constructor
internal Texture2DReader()
{
}
#endregion
#region Internal Filename Normalizer Method
internal static string Normalize(string fileName)
{
return Normalize(fileName, supportedExtensions);
}
#endregion
#region Protected Read Method
protected internal override Texture2D Read(
ContentReader reader,
Texture2D existingInstance
) {
Texture2D texture = null;
SurfaceFormat surfaceFormat;
if (reader.version < 5)
{
/* These integer values are based on the enum values
* from previous XNA versions.
* -flibit
*/
int legacyFormat = reader.ReadInt32();
if (legacyFormat == 1)
{
surfaceFormat = SurfaceFormat.ColorBgraEXT;
}
else if (legacyFormat == 28)
{
surfaceFormat = SurfaceFormat.Dxt1;
}
else if (legacyFormat == 30)
{
surfaceFormat = SurfaceFormat.Dxt3;
}
else if (legacyFormat == 32)
{
surfaceFormat = SurfaceFormat.Dxt5;
}
else
{
throw new NotSupportedException(
"Unsupported legacy surface format."
);
}
}
else
{
surfaceFormat = (SurfaceFormat) reader.ReadInt32();
}
int width = reader.ReadInt32();
int height = reader.ReadInt32();
int levelCount = reader.ReadInt32();
int levelCountOutput = levelCount;
GraphicsDevice device = reader.ContentManager.GetGraphicsDevice();
// Check to see if we need to convert the surface data
SurfaceFormat convertedFormat = surfaceFormat;
if ( surfaceFormat == SurfaceFormat.Dxt1 &&
!device.GLDevice.SupportsDxt1 )
{
convertedFormat = SurfaceFormat.Color;
}
else if ( ( surfaceFormat == SurfaceFormat.Dxt3 ||
surfaceFormat == SurfaceFormat.Dxt5 ) &&
!device.GLDevice.SupportsS3tc )
{
convertedFormat = SurfaceFormat.Color;
}
// Check for duplicate instances
if (existingInstance == null)
{
texture = new Texture2D(
device,
width,
height,
levelCountOutput > 1,
convertedFormat
);
}
else
{
texture = existingInstance;
}
for (int level = 0; level < levelCount; level += 1)
{
int levelDataSizeInBytes = reader.ReadInt32();
byte[] levelData = null; // Don't assign this quite yet...
int levelWidth = width >> level;
int levelHeight = height >> level;
if (level >= levelCountOutput)
{
continue;
}
// Swap the image data if required.
if (reader.platform == 'x')
{
if ( surfaceFormat == SurfaceFormat.Color ||
surfaceFormat == SurfaceFormat.ColorBgraEXT )
{
levelData = X360TexUtil.SwapColor(
reader.ReadBytes(levelDataSizeInBytes)
);
levelDataSizeInBytes = levelData.Length;
}
else if (surfaceFormat == SurfaceFormat.Dxt1)
{
levelData = X360TexUtil.SwapDxt1(
reader.ReadBytes(levelDataSizeInBytes),
levelWidth,
levelHeight
);
levelDataSizeInBytes = levelData.Length;
}
else if (surfaceFormat == SurfaceFormat.Dxt3)
{
levelData = X360TexUtil.SwapDxt3(
reader.ReadBytes(levelDataSizeInBytes),
levelWidth,
levelHeight
);
levelDataSizeInBytes = levelData.Length;
}
else if (surfaceFormat == SurfaceFormat.Dxt5)
{
levelData = X360TexUtil.SwapDxt5(
reader.ReadBytes(levelDataSizeInBytes),
levelWidth,
levelHeight
);
levelDataSizeInBytes = levelData.Length;
}
}
// Convert the image data if required
if (convertedFormat != surfaceFormat)
{
// May already be read in by 'x' conversion
if (levelData == null)
{
levelData = reader.ReadBytes(levelDataSizeInBytes);
}
if (surfaceFormat == SurfaceFormat.Dxt1)
{
levelData = DxtUtil.DecompressDxt1(
levelData,
levelWidth,
levelHeight
);
}
else if (surfaceFormat == SurfaceFormat.Dxt3)
{
levelData = DxtUtil.DecompressDxt3(
levelData,
levelWidth,
levelHeight
);
}
else if (surfaceFormat == SurfaceFormat.Dxt5)
{
levelData = DxtUtil.DecompressDxt5(
levelData,
levelWidth,
levelHeight
);
}
levelDataSizeInBytes = levelData.Length;
}
int levelDataByteOffset = 0;
if (levelData == null)
{
if ( reader.BaseStream is MemoryStream &&
((MemoryStream) reader.BaseStream).TryGetBuffer(out levelData) )
{
/* Ideally, we didn't have to perform any conversion or
* unnecessary reading. Just throw the buffer directly
* into SetData, skipping a redundant byte[] copy.
*/
levelDataByteOffset = (int) reader.BaseStream.Seek(0, SeekOrigin.Current);
reader.BaseStream.Seek(
levelDataSizeInBytes,
SeekOrigin.Current
);
}
else
{
/* If we don't have to perform any conversion and
* the ContentReader is not backed by a MemoryStream
* with a public buffer, we have to read the data in.
*/
levelData = reader.ReadBytes(levelDataSizeInBytes);
}
}
texture.SetData(
level,
null,
levelData,
levelDataByteOffset,
levelDataSizeInBytes
);
}
return texture;
}
#endregion
}
}