mirror of
https://github.com/GreemDev/Ryujinx.git
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ba95ee54ab
This reverts commit 4ce4299ca2
.
76 lines
3.3 KiB
C#
76 lines
3.3 KiB
C#
using System;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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namespace Ryujinx.Common.Configuration.Hid.Controller.Motion
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{
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class JsonMotionConfigControllerConverter : JsonConverter<MotionConfigController>
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{
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private static MotionInputBackendType GetMotionInputBackendType(ref Utf8JsonReader reader)
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{
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// Temporary reader to get the backend type
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Utf8JsonReader tempReader = reader;
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MotionInputBackendType result = MotionInputBackendType.Invalid;
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while (tempReader.Read())
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{
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// NOTE: We scan all properties ignoring the depth entirely on purpose.
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// The reason behind this is that we cannot track in a reliable way the depth of the object because Utf8JsonReader never emit the first TokenType == StartObject if the json start with an object.
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// As such, this code will try to parse very field named "motion_backend" to the correct enum.
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if (tempReader.TokenType == JsonTokenType.PropertyName)
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{
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string propertyName = tempReader.GetString();
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if (propertyName.Equals("motion_backend"))
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{
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tempReader.Read();
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if (tempReader.TokenType == JsonTokenType.String)
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{
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string backendTypeRaw = tempReader.GetString();
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if (!Enum.TryParse(backendTypeRaw, out result))
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{
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result = MotionInputBackendType.Invalid;
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}
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else
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{
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break;
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}
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}
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}
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}
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}
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return result;
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}
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public override MotionConfigController Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
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{
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MotionInputBackendType motionBackendType = GetMotionInputBackendType(ref reader);
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return motionBackendType switch
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{
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MotionInputBackendType.GamepadDriver => (MotionConfigController)JsonSerializer.Deserialize(ref reader, typeof(StandardMotionConfigController), options),
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MotionInputBackendType.CemuHook => (MotionConfigController)JsonSerializer.Deserialize(ref reader, typeof(CemuHookMotionConfigController), options),
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_ => throw new InvalidOperationException($"Unknown backend type {motionBackendType}"),
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};
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}
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public override void Write(Utf8JsonWriter writer, MotionConfigController value, JsonSerializerOptions options)
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{
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switch (value.MotionBackend)
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{
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case MotionInputBackendType.GamepadDriver:
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JsonSerializer.Serialize(writer, value as StandardMotionConfigController, options);
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break;
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case MotionInputBackendType.CemuHook:
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JsonSerializer.Serialize(writer, value as CemuHookMotionConfigController, options);
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break;
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default:
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throw new ArgumentException($"Unknown motion backend type {value.MotionBackend}");
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}
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}
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}
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}
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