GARbro-mirror/ArcFormats/AnimeGameSystem/ImageAinos.cs
2018-09-06 10:26:43 +04:00

301 lines
11 KiB
C#

//! \file ImageAinos.cs
//! \date Sun Apr 05 04:16:27 2015
//! \brief Ainos image 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.Utility;
namespace GameRes.Formats.Ags
{
public class CgMetaData : ImageMetaData
{
public int Type;
public int Right, Bottom;
}
[Export(typeof(ImageFormat))]
[ExportMetadata("Priority", -1)]
public class CgFormat : ImageFormat
{
public override string Tag { get { return "CG"; } }
public override string Description { get { return "Anime Game System image format"; } }
public override uint Signature { get { return 0; } }
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("CgFormat.Write not implemented");
}
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
int sig = file.ReadByte();
if (sig >= 0x20)
return null;
int width = file.ReadInt16();
int height = file.ReadInt16();
if (width <= 0 || height <= 0 || width > 4096 || height > 4096)
return null;
var meta = new CgMetaData
{
Width = (uint)width,
Height = (uint)height,
BPP = 24,
Type = sig,
};
if (0 != (sig & 7))
{
meta.OffsetX = file.ReadInt16();
meta.OffsetY = file.ReadInt16();
meta.Right = file.ReadInt16();
meta.Bottom = file.ReadInt16();
if (meta.OffsetX > meta.Right || meta.OffsetY > meta.Bottom ||
meta.Right > width || meta.Bottom > height ||
meta.OffsetX < 0 || meta.OffsetY < 0)
return null;
}
return meta;
}
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
{
using (var reader = new Reader (stream, (CgMetaData)info))
return reader.Image;
}
internal sealed class Reader : IImageDecoder
{
IBinaryStream m_input;
ImageData m_image;
byte[] m_output;
int m_type;
int m_width;
int m_height;
int m_left;
int m_top;
int m_right;
int m_bottom;
bool m_should_dispose;
public Stream Source { get { m_input.Position = 0; return m_input.AsStream; } }
public ImageFormat SourceFormat { get { return null; } }
public ImageMetaData Info { get; private set; }
public ImageData Image
{
get
{
if (null == m_image)
{
Unpack();
m_image = ImageData.Create (Info, PixelFormats.Bgr24, null, m_output, m_width*3);
}
return m_image;
}
}
public byte[] Data { get { return m_output; } }
public Reader (IBinaryStream file, CgMetaData info) : this (file, info, null, true)
{
}
public Reader (IBinaryStream file, CgMetaData info, byte[] base_image, bool leave_open = false)
{
m_type = info.Type;
m_width = (int)info.Width;
m_height = (int)info.Height;
m_left = info.OffsetX;
m_top = info.OffsetY;
m_right = info.Right == 0 ? m_width : info.Right;
m_bottom = info.Bottom == 0 ? m_height : info.Bottom;
m_output = base_image ?? CreateBackground();
m_input = file;
Info = info;
ShiftTable = InitShiftTable();
if (0 != (info.Type & 7))
m_input.Position = 13;
else
m_input.Position = 5;
m_should_dispose = !leave_open;
}
static readonly short[] ShiftX = new short[] { // 409b6c
0, -1, -3, -2, -1, 0, 1, 2
};
static readonly short[] ShiftY = new short[] { // 409b7c
0, 0, -1, -1, -1, -1, -1, -1
};
readonly int[] ShiftTable;
private int[] InitShiftTable ()
{
var table = new int[8];
for (int i = 0; i < 8; ++i)
{
table[i] = 3 * (ShiftX[i] + ShiftY[i] * m_width);
}
return table;
}
private byte[] CreateBackground ()
{
var bg = new byte[3*m_width*m_height];
for (int i = 1; i < bg.Length; i += 3)
bg[i] = 0xFF;
return bg;
}
public void Unpack ()
{
if (0 != (m_type & 0x10))
UnpackRGB();
else
UnpackIndexed();
}
public void UnpackRGB ()
{
int right = 3 * (m_width * m_top + m_right);
int left = 3 * (m_width * m_top + m_left);
for (int i = m_top; i != m_bottom; ++i)
{
int dst = left;
while (dst != right)
{
byte v9 = m_input.ReadUInt8();
if (0 != (v9 & 0x80))
{
if (0 != (v9 & 0x40))
{
m_output[dst] = (byte)(m_output[dst - 3] + ((v9 >> 3) & 6) - 2);
m_output[dst + 1] = (byte)(m_output[dst - 2] + ((v9 >> 1) & 6) - 2);
m_output[dst + 2] = (byte)(m_output[dst - 1] + ((v9 & 3) + 127) * 2);
}
else
{
byte v15 = m_input.ReadUInt8();
m_output[dst] = (byte)(((v9 << 1) + (v15 & 1)) << 1);
m_output[dst + 1] = (byte)(v15 & 0xfe);
m_output[dst + 2] = m_input.ReadUInt8();
}
dst += 3;
continue;
}
uint shift = (uint)v9 >> 4;
int count = v9 & 0xF;
if (0 == count)
{
count = (int)m_input.ReadUInt8() + 15;
if (270 == count)
{
int v12;
do
{
v12 = m_input.ReadUInt8();
count += v12;
}
while (v12 == 0xff);
}
}
if (0 != shift)
{
int src = dst + ShiftTable[shift];
Binary.CopyOverlapped (m_output, src, dst, count * 3);
}
dst += 3 * count;
}
left += m_width*3; //640*3;
right += m_width*3; //640*3;
}
}
public void UnpackIndexed ()
{
byte[] palette = m_input.ReadBytes (0x180);
int right = 3 * (m_width * m_top + m_right);
int left = 3 * (m_width * m_top + m_left); // 3 * (Rect.left + 640 * Rect.top);
for (int i = m_top; i != m_bottom; ++i)
{
int dst = left;
while (dst != right)
{
byte v13 = m_input.ReadUInt8();
if (0 != (v13 & 0x80))
{
int color = 3 * (v13 & 0x7F);
m_output[dst] = palette[color];
m_output[dst+1] = palette[color+1];
m_output[dst+2] = palette[color+2];
dst += 3;
continue;
}
uint shift = (uint)v13 >> 4;
int count = v13 & 0xF;
if (0 == count)
{
count = m_input.ReadUInt8() + 15;
if (270 == count)
{
int v16;
do
{
v16 = m_input.ReadUInt8();
count += v16;
}
while (v16 == 0xff);
}
}
if (0 != shift)
{
int src = dst + ShiftTable[shift];
Binary.CopyOverlapped (m_output, src, dst, count * 3);
}
dst += 3 * count;
}
right += m_width*3;
left += m_width*3;
}
}
#region IDisposable Members
bool m_disposed = false;
public void Dispose ()
{
if (!m_disposed)
{
if (m_should_dispose)
{
m_input.Dispose();
}
m_disposed = true;
}
GC.SuppressFinalize (this);
}
#endregion
}
}
}