GARbro-mirror/ArcFormats/Triangle/ArcCGF.cs

120 lines
4.6 KiB
C#

//! \file ArcCGF.cs
//! \date Tue Feb 02 00:47:55 2016
//! \brief route2 engine CG archive.
//
// Copyright (C) 2016 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using GameRes.Compression;
using GameRes.Utility;
namespace GameRes.Formats.Triangle
{
internal class CgfEntry : Entry
{
public uint Flags;
}
[Export(typeof(ArchiveFormat))]
public class CgfOpener : ArchiveFormat
{
public override string Tag { get { return "CGF"; } }
public override string Description { get { return "route2 engine CG archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (0);
if (!IsSaneCount (count) || file.MaxOffset >= ~0xC0000000)
return null;
uint offset1 = file.View.ReadUInt32 (0x14);
uint offset2 = file.View.ReadUInt32 (0x20);
uint entry_size, next_offset;
if (4+(uint)count*0x14 == (offset1 & ~0xC0000000))
{
entry_size = 0x14;
next_offset = offset1;
}
else if (4+(uint)count*0x20 == (offset2 & ~0xC0000000))
{
entry_size = 0x20;
next_offset = offset2;
}
else
return null;
uint index_size = entry_size * (uint)count;
if (index_size > file.View.Reserve (4, index_size))
return null;
uint index_offset = 4;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var name = file.View.ReadString (index_offset, entry_size-4);
uint flags = next_offset >> 30;
Entry entry;
if (1 == flags || name.HasExtension (".iaf"))
entry = new Entry();
else
entry = new CgfEntry { Flags = flags };
entry.Name = name;
entry.Type = "image";
entry.Offset = next_offset & ~0xC0000000;
index_offset += entry_size;
next_offset = i+1 == count ? (uint)file.MaxOffset : file.View.ReadUInt32 (index_offset+entry_size-4);
if (next_offset < entry.Offset)
return null;
entry.Size = (next_offset & ~0xC0000000) - (uint)entry.Offset;
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
}
return new ArcFile (file, this, dir);
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var cent = entry as CgfEntry;
if (null == cent)
return base.OpenEntry (arc, entry);
var offset = entry.Offset;
var header = new byte[12];
if (2 == cent.Flags)
{
arc.File.View.Read (offset, header, 0, 8);
offset += 0x10;
}
uint packed_size = arc.File.View.ReadUInt32 (offset);
arc.File.View.Read (offset+4, header, 8, 4);
var input = arc.File.CreateStream (offset+8, packed_size);
return new PrefixStream (header, input);
}
}
}