mirror of
https://github.com/crskycode/GARbro.git
synced 2024-11-23 21:55:34 +08:00
277 lines
9.9 KiB
C#
277 lines
9.9 KiB
C#
//! \file ImageMSK.cs
|
|
//! \date Sat Oct 17 09:33:34 2015
|
|
//! \brief Silky's bitmap mask.
|
|
//
|
|
// 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 GameRes.Utility;
|
|
using System;
|
|
using System.ComponentModel.Composition;
|
|
using System.IO;
|
|
using System.Windows.Media;
|
|
|
|
namespace GameRes.Formats.Silky
|
|
{
|
|
[Export(typeof(ImageFormat))]
|
|
public class RmskFormat : ImageFormat
|
|
{
|
|
public override string Tag { get { return "RMSK/SILKY'S"; } }
|
|
public override string Description { get { return "Silky's bitmap mask format"; } }
|
|
public override uint Signature { get { return 0x6B736D52; } } // 'Rmsk'
|
|
|
|
public RmskFormat ()
|
|
{
|
|
Extensions = new string[] { "msk" };
|
|
}
|
|
|
|
public override ImageMetaData ReadMetaData (Stream stream)
|
|
{
|
|
var header = new byte[12];
|
|
if (12 != stream.Read (header, 0, 12))
|
|
return null;
|
|
return new ImageMetaData
|
|
{
|
|
Width = LittleEndian.ToUInt16 (header, 8),
|
|
Height = LittleEndian.ToUInt16 (header, 10),
|
|
OffsetX = LittleEndian.ToInt16 (header, 4),
|
|
OffsetY = LittleEndian.ToInt16 (header, 6),
|
|
BPP = 8,
|
|
};
|
|
}
|
|
|
|
public override ImageData Read (Stream stream, ImageMetaData info)
|
|
{
|
|
using (var reader = new RmskReader (stream, info))
|
|
{
|
|
reader.Unpack();
|
|
return ImageData.CreateFlipped (info, PixelFormats.Gray8, null, reader.Data, (int)info.Width);
|
|
}
|
|
}
|
|
|
|
public override void Write (Stream file, ImageData image)
|
|
{
|
|
throw new System.NotImplementedException ("RmskFormat.Write not implemented");
|
|
}
|
|
}
|
|
|
|
internal sealed class RmskReader : IDisposable
|
|
{
|
|
MsbBitStream m_input;
|
|
byte[] m_output;
|
|
int m_flag;
|
|
int m_width;
|
|
int m_height;
|
|
|
|
public byte[] Data { get { return m_output; } }
|
|
|
|
public RmskReader (Stream input, ImageMetaData info)
|
|
{
|
|
input.Position = 0xC;
|
|
m_flag = input.ReadByte();
|
|
if (-1 == m_flag)
|
|
throw new EndOfStreamException();
|
|
input.Position = 0xE;
|
|
m_input = new MsbBitStream (input, true);
|
|
m_width = (int)info.Width;
|
|
m_height = (int)info.Height;
|
|
m_output = new byte[m_width*m_height];
|
|
}
|
|
|
|
public void Unpack ()
|
|
{
|
|
if (0 == (m_flag & 1))
|
|
UnpackV0();
|
|
else
|
|
UnpackV1();
|
|
}
|
|
|
|
void UnpackV0 ()
|
|
{
|
|
int line = m_width * (m_height - 1);
|
|
for (int h = 0; h < m_height; ++h)
|
|
{
|
|
int dst = line;
|
|
int column = m_width;
|
|
while (column > 0)
|
|
{
|
|
if (0 == m_input.GetNextBit())
|
|
{
|
|
int src;
|
|
int count;
|
|
if (1 == m_input.GetNextBit())
|
|
{
|
|
if (0 == m_input.GetNextBit())
|
|
{
|
|
src = dst + OffsetTable8[m_input.GetBits (3)];
|
|
}
|
|
else
|
|
{
|
|
src = m_width + dst + OffsetTable16[m_input.GetBits (4)];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
src = dst;
|
|
if (1 == m_input.GetNextBit())
|
|
{
|
|
src += m_width * (m_input.GetNextBit() + 2);
|
|
}
|
|
else
|
|
{
|
|
src += m_width * (m_input.GetBits (2) + 4);
|
|
}
|
|
src += OffsetTable16[m_input.GetBits (4)];
|
|
}
|
|
if (1 == m_input.GetNextBit())
|
|
{
|
|
count = m_input.GetNextBit() + 2;
|
|
}
|
|
else if (1 == m_input.GetNextBit())
|
|
{
|
|
count = m_input.GetBits (2) + 4;
|
|
}
|
|
else if (1 == m_input.GetNextBit())
|
|
{
|
|
count = m_input.GetBits (3) + 8;
|
|
}
|
|
else if (1 == m_input.GetNextBit())
|
|
{
|
|
count = m_input.GetBits (6) + 16;
|
|
}
|
|
else if (1 == m_input.GetNextBit())
|
|
{
|
|
count = m_input.GetBits (8) + 80;
|
|
}
|
|
else
|
|
{
|
|
count = m_input.GetBits (10) + 336;
|
|
}
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
m_output[dst++] = m_output[src++];
|
|
}
|
|
column -= count;
|
|
}
|
|
else
|
|
{
|
|
m_output[dst++] = (byte)m_input.GetBits (8);
|
|
--column;
|
|
}
|
|
}
|
|
line -= m_width;
|
|
}
|
|
}
|
|
|
|
void UnpackV1 ()
|
|
{
|
|
int column = m_width * (m_height - 1);
|
|
for (int x = 0; x < m_width; ++x)
|
|
{
|
|
int dst = column;
|
|
int line = m_height;
|
|
while (line > 0)
|
|
{
|
|
if (0 != m_input.GetNextBit())
|
|
{
|
|
m_output[dst] = (byte)m_input.GetBits (8);
|
|
dst -= m_width;
|
|
--line;
|
|
}
|
|
else
|
|
{
|
|
int src;
|
|
if (1 == m_input.GetNextBit())
|
|
{
|
|
if (0 == m_input.GetNextBit())
|
|
{
|
|
src = dst - m_width * OffsetTable8[m_input.GetBits (3)];
|
|
}
|
|
else
|
|
{
|
|
src = dst - 1 - m_width * OffsetTable16[m_input.GetBits (4)];
|
|
}
|
|
}
|
|
else if (1 == m_input.GetNextBit())
|
|
{
|
|
int n = dst - 2 - m_input.GetNextBit();
|
|
src = n - m_width * OffsetTable16[m_input.GetBits (4)];
|
|
}
|
|
else
|
|
{
|
|
int n = dst - 4 - m_input.GetBits (2);
|
|
src = n - m_width * OffsetTable16[m_input.GetBits (4)];
|
|
}
|
|
int count;
|
|
if (1 == m_input.GetNextBit())
|
|
{
|
|
count = m_input.GetBits (1) + 2;
|
|
}
|
|
else if (1 == m_input.GetNextBit())
|
|
{
|
|
count = m_input.GetBits (2) + 4;
|
|
}
|
|
else if (1 == m_input.GetNextBit())
|
|
{
|
|
count = m_input.GetBits (3) + 8;
|
|
}
|
|
else if (1 == m_input.GetNextBit())
|
|
{
|
|
count = m_input.GetBits (6) + 16;
|
|
}
|
|
else if (1 == m_input.GetNextBit())
|
|
{
|
|
count = m_input.GetBits (8) + 80;
|
|
}
|
|
else
|
|
{
|
|
count = m_input.GetBits (10) + 336;
|
|
}
|
|
line -= count;
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
m_output[dst] = m_output[src];
|
|
src -= m_width;
|
|
dst -= m_width;
|
|
}
|
|
}
|
|
}
|
|
++column;
|
|
}
|
|
}
|
|
|
|
static int[] OffsetTable8 = { -1, -2, -4, -6, -8, -12, -16, -20 };
|
|
static int[] OffsetTable16 = { -20, -16, -12, -8, -6, -4, -2, -1, 0, 1, 2, 4, 6, 8, 12, 16 };
|
|
|
|
#region IDisposable Members
|
|
bool _disposed = false;
|
|
public void Dispose ()
|
|
{
|
|
if (!_disposed)
|
|
{
|
|
m_input.Dispose();
|
|
_disposed = true;
|
|
}
|
|
}
|
|
#endregion
|
|
}
|
|
}
|