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121 lines
4.4 KiB
C#
121 lines
4.4 KiB
C#
//! \file ArcEP1.cs
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//! \date 2019 Mar 13
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//! \brief Studio Ebisu resource archive.
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//
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// Copyright (C) 2019 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.IO;
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using System.Windows.Media;
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using GameRes.Compression;
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namespace GameRes.Formats.Ebisu
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{
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internal class Ep1MetaData : ImageMetaData
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{
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public int Method;
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}
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internal class Ep1Entry : Entry
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{
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public Ep1MetaData Info;
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}
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[Export(typeof(ArchiveFormat))]
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public class Ep1Opener : ArchiveFormat
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{
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public override string Tag { get { return "EP1"; } }
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public override string Description { get { return "Studio Ebisu resource archive"; } }
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public override uint Signature { get { return 0x315045; } } // 'EP1'
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public override bool IsHierarchic { get { return false; } }
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public override bool CanWrite { get { return false; } }
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public override ArcFile TryOpen (ArcView file)
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{
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long index_offset = 8;
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var dir = new List<Entry>();
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while (index_offset < file.MaxOffset)
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{
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var name = file.View.ReadString (index_offset, 0x20);
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if (string.IsNullOrEmpty (name))
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return null;
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var entry = new Ep1Entry {
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Name = name,
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Type = "image",
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Offset = index_offset + 0x30,
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Size = file.View.ReadUInt32 (index_offset+0x2C),
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Info = new Ep1MetaData {
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Width = file.View.ReadUInt32 (index_offset+0x20),
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Height = file.View.ReadUInt32 (index_offset+0x24),
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Method = file.View.ReadInt32 (index_offset+0x28),
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BPP = 32,
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},
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};
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if (!entry.CheckPlacement (file.MaxOffset))
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return null;
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dir.Add (entry);
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index_offset += 0x30 + entry.Size;
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}
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return new ArcFile (file, this, dir);
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}
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public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
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{
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var ep1ent = (Ep1Entry)entry;
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var input = arc.File.CreateStream (entry.Offset, entry.Size);
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return new Ep1BitmapDecoder (input, ep1ent.Info);
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}
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}
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internal class Ep1BitmapDecoder : BinaryImageDecoder
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{
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int m_method;
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bool IsCompressed { get { return m_method >= 4 && m_method <= 7; } }
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public Ep1BitmapDecoder (IBinaryStream input, Ep1MetaData info) : base (input, info)
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{
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m_method = info.Method;
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}
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protected override ImageData GetImageData ()
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{
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var pixels = new byte[Info.iWidth * Info.iHeight * 4];
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if (IsCompressed)
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{
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using (var lzss = new LzssStream (m_input.AsStream, LzssMode.Decompress, true))
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{
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lzss.Config.FrameInitPos = 0xFF0;
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lzss.Read (pixels, 0, pixels.Length);
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}
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}
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else
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{
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m_input.Read (pixels, 0, pixels.Length);
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}
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return ImageData.Create (Info, PixelFormats.Bgra32, null, pixels);
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}
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}
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}
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