fix(lib & sc.cmd): bc5 and bc7 texture processing and atex export

.gitignore

@@ -237,3 +237,4 @@ $RECYCLE.BIN/
 
 # JetBrains
 .idea
+SaintCoinach.Cmd/Properties/launchSettings.json

SaintCoinach.Cmd/Commands/ImageCommand.cs

@@ -19,17 +19,28 @@ public ImageCommand(ARealmReversed realm)
 
         public override async Task InvokeAsync(string[] paramList) {
             try {
-                if (_Realm.Packs.TryGetFile(paramList[0].Trim(), out var file)) {
-                    if (file is Imaging.ImageFile imgFile) {
-                        var img = imgFile.GetImage();
+                var path = paramList[0].Trim();
+                if (_Realm.Packs.TryGetFile(path, out var file)) {
+                    Imaging.ImageFile imgFile = null;
+                    if (path.EndsWith(".atex")) {
+                        imgFile = new Imaging.ImageFile((IO.FileDefault) file);
+                    } else if (file is Imaging.ImageFile) {
+                        imgFile = (Imaging.ImageFile) file;
+                    }
 
-                        var target = new FileInfo(Path.Combine(_Realm.GameVersion, file.Path));
-                        if (!target.Directory.Exists)
-                            target.Directory.Create();
-                        var pngPath = target.FullName.Substring(0, target.FullName.Length - target.Extension.Length) + ".png";
-                        img.Save(pngPath);
-                    } else
+                    if (imgFile is null) {
                         OutputError($"File is not an image (actual: {file.CommonHeader.FileType}).");
+                        return;
+                    }
+
+                    var img = imgFile.GetImage();
+
+                    var target = new FileInfo(Path.Combine(_Realm.GameVersion, file.Path));
+                    if (!target.Directory.Exists)
+                        target.Directory.Create();
+                    var pngPath = target.FullName.Substring(0, target.FullName.Length - target.Extension.Length) + ".png";
+                    img.Save(pngPath);
+
                 } else
                     OutputError("File not found.");
             } catch (Exception e) {

SaintCoinach/Imaging/ImageConverter.cs

@@ -2,7 +2,9 @@
 using System.Collections.Generic;
 using System.Drawing;
 using System.Drawing.Imaging;
-
+using System.Drawing.Text;
+using BCnEncoder.Decoder;
+using BCnEncoder.Shared;
 using DotSquish;
 
 namespace SaintCoinach.Imaging {
@@ -14,7 +16,7 @@
         public uint dwRGBBitCount;
         public uint dwRBitMask;
         public uint dwGBitMask;
         public uint dwBBitMask;
         public uint dwABitMask;
     };
 
@@ -31,7 +33,7 @@
         public uint dwReserved2;
         public uint dwReserved3;
         public uint dwReserved4;
         public uint dwReserved5;
         public uint dwReserved6;
         public uint dwReserved7;
         public uint dwReserved8;
@@ -41,7 +43,7 @@
         public DDS_PIXELFORMAT ddspf;
         public uint dwCaps;
         public uint dwCaps2;
         public uint dwCaps3;
         public uint dwCaps4;
         public uint dwReserved11;
     };
@@ -103,6 +105,10 @@
                     ImageFormat.Dxt5, ProcessDxt5
                 }, {
                     ImageFormat.R3G3B2, ProcessR3G3B2
+                }, {
+                    ImageFormat.BC5, ProcessBC5
+                }, {
+                    ImageFormat.BC7, ProcessBC7
                 }
             };
 
@@ -183,7 +189,7 @@
                 default:
                     System.Diagnostics.Debug.WriteLine("Texture format " + file.ImageHeader.Format.ToString() + " DDS export not supported!\n");
                     return null;
                     break;
             }
 
             format.dwSize = 32;
@@ -288,6 +294,32 @@
             }
         }
 
+        // https://github.com/0ceal0t/Dalamud-VFXEditor/blob/main/VFXEditor/Formats/TextureFormat/TextureDataFile.cs#L275
+
+        private static void ProcessBC5(byte[] src, byte[] dst, int width, int height) {
+            ProcessBC(src, dst, width, height, CompressionFormat.Bc5);
+        }
+
+        private static void ProcessBC7(byte[] src, byte[] dst, int width, int height) {
+            ProcessBC(src, dst, width, height, CompressionFormat.Bc7);
+        }
+
+        private static void ProcessBC(byte[] src, byte[] dst, int width, int height, CompressionFormat format) {
+            var decoder = new BcDecoder();
+            var output = decoder.DecodeRaw2D(src, width, height, format).ToArray();
+
+            var p = 0;
+            for (var i = 0; i < height; i++) {
+                for (var j = 0; j < width; j++) {
+                    var pixel = output[i, j];
+                    dst[p] = pixel.b;
+                    dst[p + 1] = pixel.g;
+                    dst[p + 2] = pixel.r;
+                    dst[p + 3] = pixel.a;
+                    p += 4;
+                }
+            }
+        }
         #endregion
     }
 }

SaintCoinach/Imaging/ImageFile.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Drawing;
 using System.IO;
 
@@ -38,6 +39,17 @@ public ImageFile(Pack pack, FileCommonHeader commonHeader)
             ImageHeader = new ImageHeader(stream);
         }
 
+        // For atex texture files
+        public ImageFile(FileDefault file) : base(file.Pack, file.CommonHeader) {
+            var data = file.GetData();
+
+            var stream = new MemoryStream(data);
+            ImageHeader = new ImageHeader(stream);
+            var imgData = new byte[data.Length - ImageHeader.EndOfHeader];
+            Array.Copy(data, ImageHeader.EndOfHeader, imgData, 0, imgData.Length);
+            _BufferCache = new WeakReference<byte[]>(imgData);
+        }
+
         #endregion
 
         #region Read

SaintCoinach/Imaging/ImageFormat.cs

@@ -1,20 +1,33 @@
 namespace SaintCoinach.Imaging {
     public enum ImageFormat {
         Unknown = 0,
+        R16G16F = 0x2250,
         A16R16G16B16Float = 0x2460,
+        A32R32G32B32Float = 0x2470,
 
         A8R8G8B8_1 = 0x1131,
         A8R8G8B8_2 = 0x1450,
         A8R8G8B8_Cube = 0x1451,
+        A8R8G8B82 = 0x1452,
         A8R8G8B8_4 = 0x2150,
         A8R8G8B8_5 = 0x4401,
 
         A4R4G4B4 = 0x1440,
         A1R5G5B5 = 0x1441,
         R3G3B2 = 0x1130,
+        L8 = 0x1130,
+        A8 = 0x1131,
 
         Dxt1 = 0x3420,
         Dxt3 = 0x3430,
-        Dxt5 = 0x3431
+        Dxt5 = 0x3431,
+
+        D16 = 0x4140,
+        D24S8 = 0x4250,
+
+        Shadow16 = 0x5140,
+        Shadow24 = 0x5150,
+        BC5 = 0x6230,
+        BC7 = 0x6432,
     }
 }

SaintCoinach/SaintCoinach.csproj

@@ -26,6 +26,7 @@
     </Content>
   </ItemGroup>
   <ItemGroup>
+    <PackageReference Include="BCnEncoder.Net" Version="2.2.0" />
     <PackageReference Include="DotNetZip" Version="1.16.0" />
     <PackageReference Include="EntityFramework" Version="6.4.4" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />