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implemented Tmr-Hiro PAC archives.

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morkt
2015-12-23 19:48:21 +04:00
parent bf676b9198
commit 7ff67b1922
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193
ArcFormats/Tmr-Hiro/ImageGRD.cs Normal file
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//! \file ImageGRD.cs
//! \date Wed Dec 23 17:00:30 2015
//! \brief Tmr-Hiro ADV System 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 GameRes.Utility;
using System.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
namespace GameRes.Formats.TmrHiro
{
internal class GrdMetaData : ImageMetaData
{
public int Format;
public int AlphaSize;
public int RSize;
public int GSize;
public int BSize;
}
[Export(typeof(ImageFormat))]
public class GrdFormat : ImageFormat
{
public override string Tag { get { return "GRD/TMR-HIRO"; } }
public override string Description { get { return "Tmr-Hiro ADV System image format"; } }
public override uint Signature { get { return 0; } }
public GrdFormat ()
{
Extensions = new string[] { "grd", "" };
}
public override ImageMetaData ReadMetaData (Stream stream)
{
var header = new byte[0x20];
if (header.Length != stream.Read (header, 0, header.Length))
return null;
if (header[0] != 1 && header[0] != 2)
return null;
if (header[1] != 1 && header[1] != 0xA1 && header[1] != 0xA2)
return null;
int bpp = LittleEndian.ToUInt16 (header, 6);
if (bpp != 24 && bpp != 32)
return null;
int left = LittleEndian.ToUInt16 (header, 8);
int right = LittleEndian.ToUInt16 (header, 0xA);
int top = LittleEndian.ToUInt16 (header, 0xC);
int bottom = LittleEndian.ToUInt16 (header, 0xE);
var info = new GrdMetaData {
Format = LittleEndian.ToUInt16 (header, 0),
Width = (uint)(right-left),
Height = (uint)(bottom-top),
BPP = bpp,
OffsetX = left,
OffsetY = top,
AlphaSize = LittleEndian.ToInt32 (header, 0x10),
RSize = LittleEndian.ToInt32 (header, 0x14),
GSize = LittleEndian.ToInt32 (header, 0x18),
BSize = LittleEndian.ToInt32 (header, 0x1C),
};
if (0x20 + info.AlphaSize + info.RSize + info.BSize + info.GSize != stream.Length)
return null;
return info;
}
public override ImageData Read (Stream stream, ImageMetaData info)
{
var meta = (GrdMetaData)info;
var reader = new GrdReader (stream, meta);
reader.Unpack();
return ImageData.Create (info, reader.Format, null, reader.Data);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("GrdFormat.Write not implemented");
}
}
internal sealed class GrdReader
{
Stream m_input;
GrdMetaData m_info;
byte[] m_output;
int m_pack_type;
int m_pixel_size;
byte[] m_channel;
public PixelFormat Format { get; private set; }
public byte[] Data { get { return m_output; } }
public GrdReader (Stream input, GrdMetaData info)
{
m_input = input;
m_info = info;
if (32 == m_info.BPP)
Format = PixelFormats.Bgra32;
else
Format = PixelFormats.Bgr24;
int channel_size = (int)(m_info.Width * m_info.Height);
m_pack_type = m_info.Format >> 8;
m_pixel_size = m_info.BPP / 8;
m_output = new byte[m_pixel_size * channel_size];
m_channel = new byte[channel_size];
}
public void Unpack ()
{
int next_pos = 0x20;
if (32 == m_info.BPP)
{
UnpackChannel (3, next_pos, m_info.AlphaSize);
next_pos += m_info.AlphaSize;
}
UnpackChannel (2, next_pos, m_info.RSize);
next_pos += m_info.RSize;
UnpackChannel (1, next_pos, m_info.GSize);
next_pos += m_info.GSize;
UnpackChannel (0, next_pos, m_info.BSize);
}
void UnpackChannel (int dst, int src_pos, int src_size)
{
m_input.Position = src_pos;
if (1 == m_pack_type)
{
UnpackRLE (src_size);
}
else
{
throw new System.NotImplementedException ("Huffman-compressed images not implemented");
}
for (int y = (int)m_info.Height-1; y >= 0; --y)
{
int src = y * (int)m_info.Width;
for (uint x = 0; x < m_info.Width; ++x)
{
m_output[dst] = m_channel[src++];
dst += m_pixel_size;
}
}
}
void UnpackRLE (int src_size)
{
int src = 0;
int dst = 0;
while (src < src_size)
{
int count = m_input.ReadByte();
if (-1 == count)
return;
++src;
if (count > 0x7F)
{
count &= 0x7F;
byte v = (byte)m_input.ReadByte();
++src;
for (int i = 0; i < count; ++i)
m_channel[dst++] = v;
}
else
{
m_input.Read (m_channel, dst, count);
src += count;
dst += count;
}
}
}
}
}