1 files changed, 93 insertions, 0 deletions
diff --git a/src/Ryujinx.ShaderTools/Program.cs b/src/Ryujinx.ShaderTools/Program.cs
new file mode 100644
index 00000000..3acebbda
--- /dev/null
+++ b/src/Ryujinx.ShaderTools/Program.cs
@@ -0,0 +1,93 @@
+using CommandLine;
+using Ryujinx.Graphics.Shader;
+using Ryujinx.Graphics.Shader.Translation;
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.ShaderTools
+{
+    class Program
+    {
+        private class GpuAccessor : IGpuAccessor
+        {
+            private readonly byte[] _data;
+
+            public GpuAccessor(byte[] data)
+            {
+                _data = data;
+            }
+
+            public ReadOnlySpan<ulong> GetCode(ulong address, int minimumSize)
+            {
+                return MemoryMarshal.Cast<byte, ulong>(new ReadOnlySpan<byte>(_data).Slice((int)address));
+            }
+        }
+
+        private class Options
+        {
+            [Option("compute", Required = false, Default = false, HelpText = "Indicate that the shader is a compute shader.")]
+            public bool Compute { get; set; }
+
+            [Option("target-language", Required = false, Default = TargetLanguage.Glsl, HelpText = "Indicate the target shader language to use.")]
+            public TargetLanguage TargetLanguage { get; set; }
+
+            [Option("target-api", Required = false, Default = TargetApi.OpenGL, HelpText = "Indicate the target graphics api to use.")]
+            public TargetApi TargetApi { get; set; }
+
+            [Value(0, MetaName = "input", HelpText = "Binary Maxwell shader input path.", Required = true)]
+            public string InputPath { get; set; }
+
+            [Value(1, MetaName = "output", HelpText = "Decompiled shader output path.", Required = false)]
+            public string OutputPath { get; set; }
+        }
+
+        static void HandleArguments(Options options)
+        {
+            TranslationFlags flags = TranslationFlags.DebugMode;
+
+            if (options.Compute)
+            {
+                flags |= TranslationFlags.Compute;
+            }
+
+            byte[] data = File.ReadAllBytes(options.InputPath);
+
+            TranslationOptions translationOptions = new TranslationOptions(options.TargetLanguage, options.TargetApi, flags);
+
+            ShaderProgram program = Translator.CreateContext(0, new GpuAccessor(data), translationOptions).Translate();
+
+            if (options.OutputPath == null)
+            {
+                if (program.BinaryCode != null)
+                {
+                    using Stream outputStream = Console.OpenStandardOutput();
+
+                    outputStream.Write(program.BinaryCode);
+                }
+                else
+                {
+                    Console.WriteLine(program.Code);
+                }
+            }
+            else
+            {
+                if (program.BinaryCode != null)
+                {
+                    File.WriteAllBytes(options.OutputPath, program.BinaryCode);
+                }
+                else
+                {
+                    File.WriteAllText(options.OutputPath, program.Code);
+                }
+            }
+        }
+
+        static void Main(string[] args)
+        {
+            Parser.Default.ParseArguments<Options>(args)
+                .WithParsed(options => HandleArguments(options))
+                .WithNotParsed(errors => errors.Output());
+        }
+    }
+}
+\ No newline at end of file