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2016-10-16 09:22:53 +04:00

146 lines
5.4 KiB
C#

//! \file ImageHIZ.cs
//! \date Fri Jul 31 19:07:24 2015
//! \brief elf HIZ bitmap format.
//
// Copyright (C) 2015 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.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
using GameRes.Compression;
using GameRes.Utility;
namespace GameRes.Formats.Elf
{
internal class HizMetaData : ImageMetaData
{
public bool IsPacked;
public uint DataOffset;
public uint UnpackedSize;
}
[Export(typeof(ImageFormat))]
public class HizFormat : ImageFormat
{
public override string Tag { get { return "HIZ"; } }
public override string Description { get { return "elf bitmap format"; } }
public override uint Signature { get { return 0x007A6968; } } // 'hiz'
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
file.Position = 4;
int n = file.ReadInt32();
if (100 != n)
return null;
uint right = file.ReadUInt32() ^ 0xAA5A5A5A;
uint bottom = file.ReadUInt32() ^ 0xAC9326AF;
int unknown1 = file.ReadInt32(); // @0x10
if (unknown1 == 0x375A8436)
return null;
uint unpacked_size = file.ReadUInt32() ^ 0x19739D6A; // @0x14
if (unpacked_size != right*bottom*4)
return null;
return new HizMetaData
{
Width = right,
Height = bottom,
BPP = 32,
IsPacked = true,
DataOffset = 0x4c,
UnpackedSize = unpacked_size,
};
}
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
{
var meta = (HizMetaData)info;
var pixels = new byte[meta.UnpackedSize];
stream.Position = meta.DataOffset;
using (var lzss = new LzssStream (stream.AsStream, LzssMode.Decompress, true))
{
var channel = new byte[info.Width*info.Height];
for (int p = 0; p < 4; ++p)
{
if (channel.Length != lzss.Read (channel, 0, channel.Length))
throw new InvalidFormatException ("Unexpected end of file");
int src = 0;
for (int i = p; i < pixels.Length; i += 4)
pixels[i] = channel[src++];
}
return ImageData.Create (info, PixelFormats.Bgra32, null, pixels);
}
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("HizFormat.Write not implemented");
}
}
[Export(typeof(ImageFormat))]
public class HipFormat : HizFormat
{
public override string Tag { get { return "HIP"; } }
public override string Description { get { return "elf composite image format"; } }
public override uint Signature { get { return 0x00706968; } } // 'hip'
public override ImageMetaData ReadMetaData (IBinaryStream stream)
{
var header = stream.ReadHeader (0x18);
int index_offset = 0xC;
uint first_offset = header.ToUInt32 (index_offset);
if (0 == first_offset)
{
index_offset += 4;
first_offset = header.ToUInt32 (index_offset);
if (0 == first_offset)
return null;
}
index_offset += 4;
long first_length;
uint second_offset = header.ToUInt32 (index_offset);
if (0 == second_offset)
first_length = stream.Length - first_offset;
else if (second_offset < first_offset)
return null;
else
first_length = second_offset - first_offset;
using (var reg = new StreamRegion (stream.AsStream, first_offset, first_length, true))
using (var hiz = new BinaryStream (reg, stream.Name))
{
var info = base.ReadMetaData (hiz);
(info as HizMetaData).DataOffset += 0x18;
return info;
}
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("HipFormat.Write not implemented");
}
}
}