alysbrooks-public » games » isometric-park-fna

Location: alysbrooks-public/games/isometric-park-fna/FNA/src/Graphics/X360TexUtil.cs - annotation

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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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FNA/src/Graphics/X360TexUtil.cs
184 lines | 5.4 KiB | text/x-csharp | CSharpLexer
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alys
Early working version (including all dependencies, lol).
 r0 #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.
*/
#endregion
#region Using Statements
using System.IO;
#endregion
namespace Microsoft.Xna.Framework.Graphics
{
internal static class X360TexUtil
{
#region Internal Static Methods
internal static byte[] SwapColor(byte[] imageData)
{
using (MemoryStream imageStream = new MemoryStream(imageData))
{
return SwapColor(imageStream, imageData.Length);
}
}
internal static byte[] SwapColor(Stream imageStream, int imageLength)
{
byte[] imageData = new byte[imageLength];
using (BinaryReader imageReader = new BinaryReader(imageStream))
{
for (int i = 0; i < imageLength; i += sizeof(uint))
{
uint data = imageReader.ReadUInt32();
imageData[i + 0] = (byte) ((data >> 24) & 0xFF);
imageData[i + 1] = (byte) ((data >> 16) & 0xFF);
imageData[i + 2] = (byte) ((data >> 8) & 0xFF);
imageData[i + 3] = (byte) ((data >> 0) & 0xFF);
}
}
return imageData;
}
internal static byte[] SwapDxt1(byte[] imageData, int width, int height)
{
using (MemoryStream imageStream = new MemoryStream(imageData))
{
return SwapDxt1(imageStream, imageData.Length, width, height);
}
}
internal static byte[] SwapDxt1(Stream imageStream, int imageLength, int width, int height)
{
byte[] imageData = new byte[imageLength];
using (MemoryStream imageDataStream = new MemoryStream(imageData))
using (BinaryWriter imageWriter = new BinaryWriter(imageDataStream))
using (BinaryReader imageReader = new BinaryReader(imageStream))
{
int blockCountX = (width + 3) / 4;
int blockCountY = (height + 3) / 4;
for (int y = 0; y < blockCountY; y++)
{
for (int x = 0; x < blockCountX; x++)
{
SwapDxt1Block(imageReader, imageWriter);
}
}
}
return imageData;
}
internal static byte[] SwapDxt3(byte[] imageData, int width, int height)
{
using (MemoryStream imageStream = new MemoryStream(imageData))
{
return SwapDxt3(imageStream, imageData.Length, width, height);
}
}
internal static byte[] SwapDxt3(Stream imageStream, int imageLength, int width, int height)
{
byte[] imageData = new byte[imageLength];
using (MemoryStream imageDataStream = new MemoryStream(imageData))
using (BinaryWriter imageWriter = new BinaryWriter(imageDataStream))
using (BinaryReader imageReader = new BinaryReader(imageStream))
{
int blockCountX = (width + 3) / 4;
int blockCountY = (height + 3) / 4;
for (int y = 0; y < blockCountY; y++)
{
for (int x = 0; x < blockCountX; x++)
{
SwapDxt3Block(imageReader, imageWriter);
}
}
}
return imageData;
}
internal static byte[] SwapDxt5(byte[] imageData, int width, int height)
{
using (MemoryStream imageStream = new MemoryStream(imageData))
{
return SwapDxt5(imageStream, imageData.Length, width, height);
}
}
internal static byte[] SwapDxt5(Stream imageStream, int imageLength, int width, int height)
{
byte[] imageData = new byte[imageLength];
using (MemoryStream imageDataStream = new MemoryStream(imageData))
using (BinaryWriter imageWriter = new BinaryWriter(imageDataStream))
using (BinaryReader imageReader = new BinaryReader(imageStream))
{
int blockCountX = (width + 3) / 4;
int blockCountY = (height + 3) / 4;
for (int y = 0; y < blockCountY; y++)
{
for (int x = 0; x < blockCountX; x++)
{
SwapDxt5Block(imageReader, imageWriter);
}
}
}
return imageData;
}
#endregion
#region Private Static Methods
public static ushort SwapEndian(ushort data)
{
return (ushort) (
((ushort) ((data & 0xFF) << 8)) |
((ushort) ((data >> 8) & 0xFF))
);
}
private static void SwapDxt1Block(BinaryReader imageReader, BinaryWriter imageWriter)
{
// Fix the following two big-endian words to litte-endian words.
imageWriter.Write(SwapEndian(imageReader.ReadUInt16()));
imageWriter.Write(SwapEndian(imageReader.ReadUInt16()));
// Two words / 16 bit values instead of a 4 byte / 32 bit table.
imageWriter.Write(SwapEndian(imageReader.ReadUInt16()));
imageWriter.Write(SwapEndian(imageReader.ReadUInt16()));
}
private static void SwapDxt3Block(BinaryReader imageReader, BinaryWriter imageWriter)
{
// Alpha data. 16 4-bit values, but written to / read from as 4 16-bit values.
// Somehow, that one test game I had worked just fine with this unchanged... -ade
imageWriter.Write(SwapEndian(imageReader.ReadUInt16()));
imageWriter.Write(SwapEndian(imageReader.ReadUInt16()));
imageWriter.Write(SwapEndian(imageReader.ReadUInt16()));
imageWriter.Write(SwapEndian(imageReader.ReadUInt16()));
SwapDxt1Block(imageReader, imageWriter);
}
private static void SwapDxt5Block(BinaryReader imageReader, BinaryWriter imageWriter)
{
// Alpha minimum and maximum. Two bytes, but handled internally as one word.
imageWriter.Write(SwapEndian(imageReader.ReadUInt16()));
// Alpha indices. 16 3-bit values, but written to / read from as 3 16-bit values.
imageWriter.Write(SwapEndian(imageReader.ReadUInt16()));
imageWriter.Write(SwapEndian(imageReader.ReadUInt16()));
imageWriter.Write(SwapEndian(imageReader.ReadUInt16()));
SwapDxt1Block(imageReader, imageWriter);
}
#endregion
}
}