GARbro-mirror/ArcFormats/Softpal/ImagePGD.cs
2016-04-21 22:53:57 +04:00

494 lines
17 KiB
C#

//! \file ImagePGD.cs
//! \date Sat Feb 13 13:56:06 2016
//! \brief Image format used by subsidiaries of Amuse Craft (former Softpal).
//
// 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.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
using GameRes.Utility;
namespace GameRes.Formats.Softpal
{
[Export(typeof(ImageFormat))]
public class Pgd11Format : ImageFormat
{
public override string Tag { get { return "PGD/11_C"; } }
public override string Description { get { return "Image format used by Softpal subsidiaries"; } }
public override uint Signature { get { return 0x1C4547; } } // 'GE\x1C'
public Pgd11Format ()
{
Extensions = new string[] { "pgd" };
}
public override ImageMetaData ReadMetaData (Stream stream)
{
var header = new byte[0x20];
if (header.Length != stream.Read (header, 0, header.Length))
return null;
if (!Binary.AsciiEqual (header, 0x1C, "11_C"))
return null;
return new ImageMetaData
{
Width = LittleEndian.ToUInt32 (header, 0x0C),
Height = LittleEndian.ToUInt32 (header, 0x10),
OffsetX = LittleEndian.ToInt32 (header, 4),
OffsetY = LittleEndian.ToInt32 (header, 8),
BPP = 32,
};
}
public override ImageData Read (Stream stream, ImageMetaData info)
{
using (var reader = new PgdReader (stream, 0x20))
{
var planes = reader.Unpack11();
var pixels = new byte[planes.Length];
int plane_size = (int)info.Width*(int)info.Height;
int b_src = 0;
int g_src = b_src+plane_size;
int r_src = g_src+plane_size;
int alpha_src = r_src+plane_size;
int dst = 0;
while (dst < pixels.Length)
{
pixels[dst++] = planes[b_src++];
pixels[dst++] = planes[g_src++];
pixels[dst++] = planes[r_src++];
pixels[dst++] = planes[alpha_src++];
}
return ImageData.Create (info, PixelFormats.Bgra32, null, pixels);
}
}
public override void Write (Stream file, ImageData image)
{
throw new NotImplementedException ("Pgd11Format.Write not implemented");
}
}
[Export(typeof(ImageFormat))]
public class Pgd00Format : ImageFormat
{
public override string Tag { get { return "PGD/00_C"; } }
public override string Description { get { return "Image format used by Softpal subsidiaries"; } }
public override uint Signature { get { return 0; } }
public Pgd00Format ()
{
Extensions = new string[] { "pgd" };
}
public override ImageMetaData ReadMetaData (Stream stream)
{
var header = new byte[0x24];
if (header.Length != stream.Read (header, 0, header.Length))
return null;
if (!Binary.AsciiEqual (header, 0x18, "00_C"))
return null;
return new ImageMetaData
{
Width = LittleEndian.ToUInt32 (header, 8),
Height = LittleEndian.ToUInt32 (header, 12),
OffsetX = LittleEndian.ToInt32 (header, 0),
OffsetY = LittleEndian.ToInt32 (header, 4),
BPP = 32,
};
}
public override ImageData Read (Stream stream, ImageMetaData info)
{
using (var reader = new PgdReader (stream, 0x1C))
{
var data = reader.Unpack00();
using (var tga = new MemoryStream (data))
{
var tga_info = Tga.ReadMetaData (tga);
if (null == tga_info)
throw new InvalidFormatException();
tga.Position = 0;
return Tga.Read (tga, tga_info);
}
}
}
public override void Write (Stream file, ImageData image)
{
throw new NotImplementedException ("Pgd00Format.Write not implemented");
}
}
[Export(typeof(ImageFormat))]
public class PgdTgaFormat : TgaFormat
{
public override string Tag { get { return "PGD/TGA"; } }
public override string Description { get { return "Image format used by Softpal subsidiaries"; } }
public override uint Signature { get { return 0; } }
public PgdTgaFormat ()
{
Extensions = new string[] { "pgd" };
}
public override ImageMetaData ReadMetaData (Stream stream)
{
var header = new byte[0x2A];
if (header.Length != stream.Read (header, 0, header.Length))
return null;
int x = LittleEndian.ToInt32 (header, 0);
int y = LittleEndian.ToInt32 (header, 4);
if (Math.Abs (x) > 0x2000 || Math.Abs (y) > 0x2000)
return null;
uint width = LittleEndian.ToUInt32 (header, 8);
uint height = LittleEndian.ToUInt32 (header, 12);
if (0 == width || 0 == height
|| width != LittleEndian.ToUInt16 (header, 0x24)
|| height != LittleEndian.ToUInt16 (header, 0x26))
return null;
stream.Position = 0x18;
var tga_info = base.ReadMetaData (stream);
if (null == tga_info)
return null;
tga_info.OffsetX = x;
tga_info.OffsetY = y;
return tga_info;
}
public override ImageData Read (Stream stream, ImageMetaData info)
{
using (var tga = new StreamRegion (stream, 0x18, true))
return base.Read (tga, info);
}
public override void Write (Stream file, ImageData image)
{
throw new NotImplementedException ("PgdTgaFormat.Write not implemented");
}
}
internal class PgdGeMetaData : ImageMetaData
{
public int Method;
}
[Export(typeof(ImageFormat))]
public class PgdGeFormat : ImageFormat
{
public override string Tag { get { return "PGD/GE"; } }
public override string Description { get { return "Image format used by Softpal subsidiaries"; } }
public override uint Signature { get { return 0x204547; } } // 'GE '
public PgdGeFormat ()
{
Extensions = new string[] { "pgd" };
}
public override ImageMetaData ReadMetaData (Stream stream)
{
var header = new byte[0x20];
if (header.Length != stream.Read (header, 0, header.Length))
return null;
return new PgdGeMetaData
{
Width = LittleEndian.ToUInt32 (header, 0x0C),
Height = LittleEndian.ToUInt32 (header, 0x10),
OffsetX = LittleEndian.ToInt32 (header, 4),
OffsetY = LittleEndian.ToInt32 (header, 8),
BPP = 32,
Method = LittleEndian.ToUInt16 (header, 0x1C),
};
}
public override ImageData Read (Stream stream, ImageMetaData info)
{
stream.Position = 0x20;
using (var reader = new PgdReader (stream, (PgdGeMetaData)info))
{
var pixels = reader.UnpackGE();
return ImageData.Create (info, reader.Format, null, pixels);
}
}
public override void Write (Stream file, ImageData image)
{
throw new NotImplementedException ("PgdGeFormat.Write not implemented");
}
}
internal sealed class PgdReader : IDisposable
{
BinaryReader m_input;
byte[] m_output;
int m_width;
int m_height;
int m_method;
public byte[] Data { get { return m_output; } }
public PixelFormat Format { get; private set; }
public PgdReader (Stream input, int position)
{
input.Position = position;
m_input = new ArcView.Reader (input);
int unpacked_size = m_input.ReadInt32();
m_input.ReadInt32(); // packed_size
m_output = new byte[unpacked_size];
}
public PgdReader (Stream input, PgdGeMetaData info) : this (input, 0x20)
{
m_width = (int)info.Width;
m_height = (int)info.Height;
m_method = info.Method;
}
public byte[] UnpackGE ()
{
UnpackGePre();
switch (m_method)
{
case 1: return PostProcess1 (m_output);
case 2: return PostProcess2 (m_output);
case 3: return PostProcess3 (m_output);
default: throw new NotSupportedException ("Not supported PGD compression");
}
}
public byte[] Unpack00 ()
{
return Unpack (3000);
}
public byte[] Unpack11 ()
{
return Unpack (0xFFC);
}
byte[] Unpack (int look_behind)
{
int dst = 0;
int ctl = 2;
while (dst < m_output.Length)
{
ctl >>= 1;
if (1 == ctl)
{
ctl = m_input.ReadByte() | 0x100;
}
int count;
if (0 != (ctl & 1))
{
int src = m_input.ReadUInt16();
count = m_input.ReadByte();
if (dst > look_behind)
src += dst - look_behind;
Binary.CopyOverlapped (m_output, src, dst, count);
}
else
{
count = m_input.ReadByte();
m_input.Read (m_output, dst, count);
}
dst += count;
}
return m_output;
}
byte[] UnpackGePre ()
{
int dst = 0;
int ctl = 2;
while (dst < m_output.Length)
{
ctl >>= 1;
if (1 == ctl)
ctl = m_input.ReadByte() | 0x100;
int count;
if (0 != (ctl & 1))
{
int offset = m_input.ReadUInt16();
if (0 != (offset & 8))
{
count = (offset & 7) + 4;
}
else
{
count = ((offset & 7) << 8 | m_input.ReadByte()) + 4;
}
offset >>= 4;
Binary.CopyOverlapped (m_output, dst - offset, dst, count);
}
else
{
count = m_input.ReadByte();
m_input.Read (m_output, dst, count);
}
dst += count;
}
return m_output;
}
byte[] PostProcess1 (byte[] input)
{
Format = PixelFormats.Bgra32;
var output = new byte[input.Length];
int plane_size = input.Length / 4;
int a_src = 0;
int r_src = plane_size;
int g_src = 2 * plane_size;
int b_src = 3 * plane_size;
int dst = 0;
for (int i = 0; i < plane_size; ++i)
{
output[dst++] = input[b_src+i];
output[dst++] = input[g_src+i];
output[dst++] = input[r_src+i];
output[dst++] = input[a_src+i];
}
return output;
}
byte[] PostProcess2 (byte[] input)
{
Format = PixelFormats.Bgr24;
int stride = m_width * 3;
int segment_size = m_width * m_height / 4;
int src0 = 0;
int src1 = segment_size;
int src2 = segment_size + src1;
var output = new byte[stride * m_height];
int dst = 0;
int[] points = { 0, 1, m_width, m_width + 1 };
for (int y = m_height / 2; y > 0; --y)
{
for (int x = m_width / 2; x > 0; --x)
{
sbyte i0 = (sbyte)input[src0];
sbyte i1 = (sbyte)input[src1];
int b = 226 * i0;
int g = -43 * i0 - 89 * i1;
int r = 179 * i1;
++src0;
++src1;
for (int i = 0; i < points.Length; ++i)
{
int offset = points[i];
int base_value = input[src2+offset] << 7;
offset = dst + 3 * offset;
output[offset++] = Clamp ((base_value + b) >> 7);
output[offset++] = Clamp ((base_value + g) >> 7);
output[offset++] = Clamp ((base_value + r) >> 7);
}
src2 += 2;
dst += 6;
}
src2 += m_width;
dst += stride;
}
return output;
}
static byte Clamp (int val)
{
if (val > 255) val = 255;
else if (val < 0) val = 0;
return (byte)val;
}
byte[] PostProcess3 (byte[] input)
{
int bpp = LittleEndian.ToUInt16 (input, 2);
if (32 == bpp)
Format = PixelFormats.Bgra32;
else if (24 == bpp)
Format = PixelFormats.Bgr24;
else
throw new InvalidFormatException();
int pixel_size = bpp / 8;
int width = LittleEndian.ToUInt16 (input, 4);
int height = LittleEndian.ToUInt16 (input, 6);
int stride = width * pixel_size;
var output = new byte[height * stride];
int ctl = 8;
int src = ctl + height;
int dst = 0;
for (int row = 0; row < height; ++row)
{
int c = input[ctl++];
if (0 != (c & 1))
{
int prev = dst;
Buffer.BlockCopy (input, src, output, dst, pixel_size);
src += pixel_size;
dst += pixel_size;
int count = stride - pixel_size;
while (count --> 0)
{
output[dst++] = (byte)(output[prev++] - input[src++]);
}
}
else if (0 != (c & 2))
{
int prev = dst - stride;
int count = stride;
while (count --> 0)
{
output[dst++] = (byte)(output[prev++] - input[src++]);
}
}
else
{
Buffer.BlockCopy (input, src, output, dst, pixel_size);
dst += pixel_size;
src += pixel_size;
int prev = dst - stride;
int count = stride - pixel_size;
while (count --> 0)
{
output[dst] = (byte)((output[prev++] + output[dst-pixel_size]) / 2 - input[src++]);
++dst;
}
}
}
return output;
}
#region IDisposable Members
bool _disposed = false;
public void Dispose ()
{
if (!_disposed)
{
m_input.Dispose();
_disposed = true;
}
}
#endregion
}
}