Initial commit

2021-02-16 01:04:29 -07:00 · 2021-02-16 01:04:29 -07:00 · 0f86b0434b
commit 0f86b0434b
38 changed files with 2370 additions and 0 deletions
--- a/LibDgf/Aqualead/Image/AlImage.cs
+++ b/LibDgf/Aqualead/Image/AlImage.cs
@ -0,0 +1,95 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+
+namespace LibDgf.Aqualead.Image
+{
+    public class AlImage
+    {
+        string pixelFormat;
+
+        public AlImageMipmapType MipmapType { get; set; }
+        public AlImageFlags Flags { get; set; }
+        public string PixelFormat
+        {
+            get
+            {
+                return pixelFormat;
+            }
+            set
+            {
+                if (value == null) throw new ArgumentNullException(nameof(value));
+                if (value.Length > 4) throw new ArgumentException("String length too long.", nameof(value));
+                pixelFormat = value;
+            }
+        }
+        public uint Width { get; set; }
+        public uint Height { get; set; }
+        public byte[] PlatformWork { get; set; }
+        public uint[] PaletteColors { get; set; }
+        public List<byte[]> Mipmaps { get; set; }
+
+        public void Read(BinaryReader br)
+        {
+            var baseOffset = br.BaseStream.Position;
+            if (new string(br.ReadChars(4)) != "ALIG")
+                throw new InvalidDataException("Not an AquaLead image.");
+            MipmapType = (AlImageMipmapType)br.ReadByte();
+            Flags = (AlImageFlags)br.ReadByte();
+            int numPaletteColors = br.ReadUInt16();
+            if ((Flags & AlImageFlags.PaletteAdd64K) != 0) numPaletteColors += 0x10000;
+            if ((Flags & AlImageFlags.PaletteAdd128K) != 0) numPaletteColors += 0x20000;
+            PixelFormat = new string(br.ReadChars(4));
+            br.ReadUInt32();
+            if (MipmapType != AlImageMipmapType.Platform)
+            {
+                Width = br.ReadUInt32();
+                Height = br.ReadUInt32();
+            }
+            else
+            {
+                Width = br.ReadUInt16();
+                Height = br.ReadUInt16();
+            }
+
+            int numMipmaps = MipmapType == AlImageMipmapType.NoMipmap ? 1 : br.ReadUInt16();
+            ushort paletteOffset = br.ReadUInt16();
+            ushort platformWorkLength = MipmapType == AlImageMipmapType.Platform ? br.ReadUInt16() : (ushort)0;
+
+            uint[] mipmapOffsets = new uint[numMipmaps + 1];
+            if (MipmapType == AlImageMipmapType.NoMipmap)
+            {
+                mipmapOffsets[0] = br.ReadUInt16();
+            }
+            else
+            {
+                for (int i = 0; i < numMipmaps; ++i)
+                {
+                    mipmapOffsets[i] = br.ReadUInt32();
+                }
+            }
+            mipmapOffsets[numMipmaps] = (uint)(br.BaseStream.Length - baseOffset);
+
+            PaletteColors = new uint[numPaletteColors];
+            br.BaseStream.Seek(baseOffset + paletteOffset, SeekOrigin.Begin);
+            for (int i = 0; i < PaletteColors.Length; ++i)
+            {
+                PaletteColors[i] = br.ReadUInt32();
+            }
+
+            if (MipmapType == AlImageMipmapType.Platform)
+            {
+                br.BaseStream.Seek(baseOffset + 0x20, SeekOrigin.Begin);
+                PlatformWork = br.ReadBytes(platformWorkLength);
+            }
+
+            Mipmaps = new List<byte[]>();
+            for (int i = 0; i < numMipmaps; ++i)
+            {
+                br.BaseStream.Seek(baseOffset + mipmapOffsets[i], SeekOrigin.Begin);
+                Mipmaps.Add(br.ReadBytes((int)(mipmapOffsets[i + 1] - mipmapOffsets[i])));
+            }
+        }
+    }
+}