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code generator that automatically switches endianness

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This commit is contained in:
Vinzenz Schroeter 2024-04-20 15:54:17 +02:00
parent e603c154b9
commit 5532c4f5a8
8 changed files with 291 additions and 34 deletions
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4
DisplayCommands/DisplayCommands.csproj
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@ -22,6 +22,10 @@
<PackageReference Include="System.Text.Encoding.CodePages" Version="8.0.0"/>
<PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="8.0.1"/>
<PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="8.0.1"/>
<ProjectReference Include="../EndiannessSourceGenerator/EndiannessSourceGenerator.csproj"
OutputItemType="Analyzer"
ReferenceOutputAssembly="false"/>
</ItemGroup>
</Project>

18
DisplayCommands/Internals/DisplayConnection.cs
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@ -14,7 +14,7 @@ internal sealed class DisplayConnection(IOptions<DisplayConfiguration> options)
public ValueTask SendClearAsync()
{
var header = new HeaderWindow { Command = DisplayCommand.Clear };
var header = new HeaderWindow { Command = (ushort)DisplayCommand.Clear };
return SendAsync(header, Memory<byte>.Empty);
}
@ -23,7 +23,7 @@ internal sealed class DisplayConnection(IOptions<DisplayConfiguration> options)
{
var header = new HeaderWindow
{
Command = DisplayCommand.Cp437Data,
Command = (ushort)DisplayCommand.Cp437Data,
Height = grid.Height,
Width = grid.Width,
PosX = x,
@ -37,7 +37,7 @@ internal sealed class DisplayConnection(IOptions<DisplayConfiguration> options)
{
var header = new HeaderWindow
{
Command = DisplayCommand.CharBrightness,
Command = (ushort)DisplayCommand.CharBrightness,
PosX = x,
PosY = y,
Height = luma.Height,
@ -49,7 +49,7 @@ internal sealed class DisplayConnection(IOptions<DisplayConfiguration> options)
public async ValueTask SendBrightnessAsync(byte brightness)
{
var header = new HeaderWindow { Command = DisplayCommand.Brightness };
var header = new HeaderWindow { Command = (ushort)DisplayCommand.Brightness };
var payloadBuffer = _arrayPool.Rent(1);
var payload = payloadBuffer.AsMemory(0, 1);
@ -61,13 +61,13 @@ internal sealed class DisplayConnection(IOptions<DisplayConfiguration> options)
public ValueTask SendHardResetAsync()
{
var header = new HeaderWindow { Command = DisplayCommand.HardReset };
var header = new HeaderWindow { Command = (ushort)DisplayCommand.HardReset };
return SendAsync(header, Memory<byte>.Empty);
}
public async ValueTask SendFadeOutAsync(byte loops)
{
var header = new HeaderWindow { Command = DisplayCommand.FadeOut };
var header = new HeaderWindow { Command = (ushort)DisplayCommand.FadeOut };
var payloadBuffer = _arrayPool.Rent(1);
var payload = payloadBuffer.AsMemory(0, 1);
@ -81,8 +81,9 @@ internal sealed class DisplayConnection(IOptions<DisplayConfiguration> options)
{
var header = new HeaderWindow
{
Command = DisplayCommand.BitmapLinearWin,
PosX = x, PosY = y,
Command = (ushort)DisplayCommand.BitmapLinearWin,
PosX = x,
PosY = y,
Width = (ushort)(pixels.Width / 8),
Height = pixels.Height
};
@ -113,7 +114,6 @@ internal sealed class DisplayConnection(IOptions<DisplayConfiguration> options)
var buffer = _arrayPool.Rent(messageSize);
var message = buffer.AsMemory(0, messageSize);
header.ChangeToNetworkOrder();
MemoryMarshal.Write(message.Span, header);
payload.CopyTo(message[headerSize..]);

16
DisplayCommands/Internals/HeaderBitmap.cs
View file

@ -1,17 +1,19 @@
using System.Runtime.InteropServices;
using EndiannessSourceGenerator;
namespace DisplayCommands.Internals;
[StructEndianness(IsLittleEndian = false)]
[StructLayout(LayoutKind.Sequential, Pack = 16, Size = 10)]
internal struct HeaderBitmap
internal partial struct HeaderBitmap
{
public DisplayCommand Command;
private ushort _command;
public ushort Offset;
private ushort _offset;
public ushort Length;
private ushort _length;
public DisplaySubCommand SubCommand;
private ushort _subCommand;
public ushort Reserved;
}
private ushort _reserved;
}

26
DisplayCommands/Internals/HeaderWindow.cs
View file

@ -1,29 +1,19 @@
using System.Buffers.Binary;
using System.Runtime.InteropServices;
using EndiannessSourceGenerator;
namespace DisplayCommands.Internals;
[StructEndianness(IsLittleEndian = false)]
[StructLayout(LayoutKind.Sequential, Pack = 16, Size = 10)]
internal struct HeaderWindow
internal partial struct HeaderWindow
{
public DisplayCommand Command;
private ushort _command;
public ushort PosX;
private ushort _posX;
public ushort PosY;
private ushort _posY;
public ushort Width;
private ushort _width;
public ushort Height;
public void ChangeToNetworkOrder()
{
if (!BitConverter.IsLittleEndian)
return;
Command = (DisplayCommand)BinaryPrimitives.ReverseEndianness((ushort)Command);
PosX = BinaryPrimitives.ReverseEndianness(PosX);
PosY = BinaryPrimitives.ReverseEndianness(PosY);
Width = BinaryPrimitives.ReverseEndianness(Width);
Height = BinaryPrimitives.ReverseEndianness(Height);
}
private ushort _height;
}