Add project files.

RmdTextureFix.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.32112.339
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "RmdTextureFix", "RmdTextureFix\RmdTextureFix.csproj", "{69628EA3-7306-4D9B-90B3-7D451553FC29}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "GJ.IO", "..\GJConv\GJ.IO\GJ.IO.csproj", "{FC32ACA7-7BA9-436D-84D3-ACC6CC3FD700}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{69628EA3-7306-4D9B-90B3-7D451553FC29}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{69628EA3-7306-4D9B-90B3-7D451553FC29}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{69628EA3-7306-4D9B-90B3-7D451553FC29}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{69628EA3-7306-4D9B-90B3-7D451553FC29}.Release|Any CPU.Build.0 = Release|Any CPU
+		{FC32ACA7-7BA9-436D-84D3-ACC6CC3FD700}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FC32ACA7-7BA9-436D-84D3-ACC6CC3FD700}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FC32ACA7-7BA9-436D-84D3-ACC6CC3FD700}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FC32ACA7-7BA9-436D-84D3-ACC6CC3FD700}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {1632F7A8-8DC9-4C68-B6A1-9452668DC109}
+	EndGlobalSection
+EndGlobal

RmdTextureFix/GJ.IO.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Folder Include="Formats\Gim\" />
+    <Folder Include="Formats\Tmx\" />
+    <Folder Include="Formats\Tim2\" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="ImageProcessor" Version="2.9.1" />
+    <PackageReference Include="System.Drawing.Common" Version="7.0.0" />
+  </ItemGroup>
+
+</Project>

RmdTextureFix/Program.cs

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+using TxnLib;
+using static GJ.IO.IOFunctions;
+using static TxnLib.RmdEnums;
+
+namespace RmdTextureFix
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            if (args.Length == 0)
+                PrintAndExit();
+
+            if (File.Exists(args[0]))
+            {
+                if (Path.GetExtension(args[0]).ToLower() == ".pac")
+                {
+                    Console.WriteLine($"Reading pac file: {Path.GetFileName(args[0])}");
+                    FixPac(args[0]);
+                }
+                else if (Path.GetExtension(args[0]).ToLower() == ".rmd")
+                {
+                    Console.WriteLine($"Reading rmd file: {Path.GetFileName(args[0])}");
+                    FixRmd(args[0]);
+                }
+            }
+            else if (Directory.Exists(args[0]))
+            {
+                string[] RmdFiles = Directory.GetFiles(args[0], "*.rmd*");
+                string[] PacFiles = Directory.GetFiles(args[0], "*.pac*");
+
+                if (RmdFiles.Length > 0)
+                {
+                    Console.WriteLine($"Reading {RmdFiles.Length} rmd files...");
+                    for (int i = 0; i < RmdFiles.Length; i++)
+                    {
+                        Console.WriteLine($"Reading rmd {i + 1}/{RmdFiles.Length}: {Path.GetFileName(RmdFiles[i])}");
+                        FixRmd(RmdFiles[i]);
+                    }
+                }
+                if (PacFiles.Length > 0)
+                {
+                    Console.WriteLine($"Reading {PacFiles.Length} pac files...");
+                    for (int i = 0; i < PacFiles.Length; i++)
+                    {
+                        Console.WriteLine($"Reading pac {i + 1}/{PacFiles.Length}: {Path.GetFileName(PacFiles[i])}");
+                        FixPac(PacFiles[i]);
+                    }
+                }
+                if (RmdFiles.Length == 0 || PacFiles.Length == 0)
+                {
+                    Console.WriteLine($"No pac or rmd files found in {args[0]}");
+                    Console.WriteLine("\nPress any button to exit");
+                    Console.ReadKey();
+                }
+            }
+            else
+            {
+                PrintAndExit();
+            }
+        }
+        static void FixPac(string path)
+        {
+            PacFile pac = new(path);
+            for (int i = 0; i < pac.Entries.Count; i++)
+            {
+                if (Path.GetExtension(pac.Entries[i].Name).ToLower() == ".rmd")
+                {
+                    RmdFile rmd = new(pac.Entries[i].File);
+                    FixRmd(ref rmd);
+                    pac.Entries[i] = new PacFile.PacEntry(pac.Entries[i].Name, rmd.Save());
+                }
+            }
+            pac.Save(path);
+        }
+        static void FixRmd(string path)
+        {
+            RmdFile rmd = new(path);
+            FixRmd(ref rmd);
+            rmd.Save(path);
+        }
+        static void FixRmd(ref RmdFile rmd)
+        {
+            for (int j = 0; j < rmd.Chunks.Count; j++)
+            {
+                if (rmd.Chunks[j].Type == RmdChunkType.TextureDictionary)
+                {
+                    RwTextureDictionary td = (RwTextureDictionary)rmd.Chunks[j];
+                    for (int k = 0; k < td.Textures.Count; k++)
+                    {
+                        if (!td.Textures[k].RasterInfo.Format.HasFlag(RwRasterFormat.HasHeaders))
+                        {
+                            td.Textures[k].RasterData.GenerateHeaders(td.Textures[k].RasterInfo);
+                            td.Textures[k].RasterInfo.Format |= RwRasterFormat.HasHeaders;
+                            td.Textures[k].RasterInfo.Format &= ~RwRasterFormat.Swizzled;
+                            td.Textures[k].RasterInfo.CalculateSizes();
+                        }
+                    }
+                    rmd.Chunks[j] = td;
+                }
+            }
+        }
+        static void PrintAndExit()
+        {
+            Console.WriteLine("RmdTextureFix 1.0 by Pioziomgames");
+            Console.WriteLine("Usage:");
+            Console.WriteLine("\tRmdTextureFix.exe {Rmd/Pac/Directory Path}");
+            Console.WriteLine("\nPress any key to exit");
+            Console.ReadKey();
+            System.Environment.Exit(0);
+        }
+    }
+    class PacFile
+    {
+        public struct PacEntry
+        {
+            public byte[] File;
+            public string Name;
+            public PacEntry(string name, byte[] file)
+            {
+                Name = name;
+                File = file;
+            }
+        }
+        public List<PacEntry> Entries;
+        public PacFile(string path)
+        {
+            Entries = new List<PacEntry>();
+            using (BinaryReader reader = new(File.OpenRead(path)))
+            {
+                while (true)
+                {
+                    if (reader.BaseStream.Position + 256 >= reader.BaseStream.Length)
+                        break;
+                    Align(reader, 64);
+                    string FileName = new(reader.ReadChars(252));
+                    FileName = FileName.Replace("\0", "");
+                    if (FileName.Length == 0)
+                        break;
+                    int Size = reader.ReadInt32();
+                    byte[] file = reader.ReadBytes(Size);
+                    Entries.Add(new PacEntry(FileName, file));
+                }
+            }
+        }
+        public void Save(string path)
+        {
+            using (BinaryWriter writer = new(File.OpenWrite(path)))
+            {
+                for (int i = 0; i < Entries.Count; i++)
+                {
+                    writer.Write(Entries[i].Name.PadRight(252, '\0').ToArray());
+                    writer.Write(Entries[i].File.Length);
+                    writer.Write(Entries[i].File);
+                    Align(writer, 64);
+                }
+                writer.Flush();
+                writer.Close();
+            }
+        }
+    }
+}

RmdTextureFix/RmdTextureFix.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\GJConv\GJ.IO\GJ.IO.csproj" />
+  </ItemGroup>
+
+</Project>