mirror of
https://github.com/crskycode/GARbro.git
synced 2024-12-26 04:44:14 +08:00
307 lines
10 KiB
C#
307 lines
10 KiB
C#
//! \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;
|
|
using System.Collections.Generic;
|
|
|
|
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 (IBinaryStream stream)
|
|
{
|
|
var header = stream.ReadHeader (0x20);
|
|
if (header[0] != 1 && header[0] != 2)
|
|
return null;
|
|
if (header[1] != 1 && header[1] != 0xA1 && header[1] != 0xA2)
|
|
return null;
|
|
int bpp = header.ToUInt16 (6);
|
|
if (bpp != 24 && bpp != 32)
|
|
return null;
|
|
int screen_width = header.ToUInt16 (2);
|
|
int screen_height = header.ToUInt16 (4);
|
|
int left = header.ToUInt16 (8);
|
|
int right = header.ToUInt16 (0xA);
|
|
int top = header.ToUInt16 (0xC);
|
|
int bottom = header.ToUInt16 (0xE);
|
|
var info = new GrdMetaData {
|
|
Format = header.ToUInt16 (0),
|
|
Width = (uint)(right-left),
|
|
Height = (uint)(bottom-top),
|
|
BPP = bpp,
|
|
OffsetX = left,
|
|
OffsetY = screen_height - bottom,
|
|
AlphaSize = header.ToInt32 (0x10),
|
|
RSize = header.ToInt32 (0x14),
|
|
GSize = header.ToInt32 (0x18),
|
|
BSize = header.ToInt32 (0x1C),
|
|
};
|
|
if (0x20 + info.AlphaSize + info.RSize + info.BSize + info.GSize != stream.Length)
|
|
return null;
|
|
return info;
|
|
}
|
|
|
|
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
|
|
{
|
|
var meta = (GrdMetaData)info;
|
|
var reader = new GrdReader (stream.AsStream, 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 (24 == m_info.BPP)
|
|
Format = PixelFormats.Bgr24;
|
|
else if (m_info.AlphaSize > 0)
|
|
Format = PixelFormats.Bgra32;
|
|
else
|
|
Format = PixelFormats.Bgr32;
|
|
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 && m_info.AlphaSize > 0)
|
|
{
|
|
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 (m_input, src_size);
|
|
}
|
|
else
|
|
{
|
|
var data = UnpackHuffman (m_input);
|
|
if (0xA2 == m_pack_type)
|
|
{
|
|
UnpackLZ77 (data, m_channel);
|
|
}
|
|
else
|
|
{
|
|
using (var mem = new MemoryStream (data))
|
|
UnpackRLE (mem, data.Length);
|
|
}
|
|
}
|
|
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 (Stream input, int src_size)
|
|
{
|
|
int src = 0;
|
|
int dst = 0;
|
|
while (src < src_size)
|
|
{
|
|
int count = input.ReadByte();
|
|
if (-1 == count)
|
|
return;
|
|
++src;
|
|
if (count > 0x7F)
|
|
{
|
|
count &= 0x7F;
|
|
byte v = (byte)input.ReadByte();
|
|
++src;
|
|
for (int i = 0; i < count; ++i)
|
|
m_channel[dst++] = v;
|
|
}
|
|
else if (count > 0)
|
|
{
|
|
input.Read (m_channel, dst, count);
|
|
src += count;
|
|
dst += count;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void UnpackLZ77 (byte[] input, byte[] output)
|
|
{
|
|
var special = input[8];
|
|
int src = 12;
|
|
int dst = 0;
|
|
while (dst < output.Length)
|
|
{
|
|
byte b = input[src++];
|
|
if (b == special)
|
|
{
|
|
byte offset = input[src++];
|
|
if (offset != special)
|
|
{
|
|
byte count = input[src++];
|
|
if (offset > special)
|
|
--offset;
|
|
|
|
Binary.CopyOverlapped (output, dst - offset, dst, count);
|
|
dst += count;
|
|
}
|
|
else
|
|
output[dst++] = offset;
|
|
}
|
|
else
|
|
output[dst++] = b;
|
|
}
|
|
}
|
|
|
|
const int RootNodeIndex = 0x1FE;
|
|
int m_huffman_unpacked;
|
|
|
|
byte[] UnpackHuffman (Stream input)
|
|
{
|
|
var tree = CreateHuffmanTree (input);
|
|
var unpacked = new byte[m_huffman_unpacked];
|
|
using (var bits = new LsbBitStream (input, true))
|
|
{
|
|
int dst = 0;
|
|
while (dst < m_huffman_unpacked)
|
|
{
|
|
int node = RootNodeIndex;
|
|
while (node > 0xFF)
|
|
{
|
|
if (0 != bits.GetNextBit())
|
|
node = tree[node].Right;
|
|
else
|
|
node = tree[node].Left;
|
|
}
|
|
unpacked[dst++] = (byte)node;
|
|
}
|
|
}
|
|
return unpacked;
|
|
}
|
|
|
|
HuffmanNode[] CreateHuffmanTree (Stream input)
|
|
{
|
|
var nodes = new HuffmanNode[0x200];
|
|
var tree = new List<int> (0x100);
|
|
using (var reader = new ArcView.Reader (input))
|
|
{
|
|
m_huffman_unpacked = reader.ReadInt32();
|
|
reader.ReadInt32(); // packed_size
|
|
|
|
for (int i = 0; i < 0x100; i++)
|
|
{
|
|
nodes[i].Freq = reader.ReadUInt32();
|
|
AddNode (tree, nodes, i);
|
|
}
|
|
}
|
|
int last_node = 0x100;
|
|
while (tree.Count > 1)
|
|
{
|
|
int l = tree[0];
|
|
tree.RemoveAt (0);
|
|
int r = tree[0];
|
|
tree.RemoveAt (0);
|
|
nodes[last_node].Freq = nodes[l].Freq + nodes[r].Freq;
|
|
nodes[last_node].Left = l;
|
|
nodes[last_node].Right = r;
|
|
AddNode (tree, nodes, last_node++);
|
|
}
|
|
return nodes;
|
|
}
|
|
|
|
static void AddNode (List<int> tree, HuffmanNode[] nodes, int index)
|
|
{
|
|
uint freq = nodes[index].Freq;
|
|
int i;
|
|
for (i = 0; i < tree.Count; ++i)
|
|
if (nodes[tree[i]].Freq > freq)
|
|
break;
|
|
tree.Insert (i, index);
|
|
}
|
|
|
|
internal struct HuffmanNode
|
|
{
|
|
public uint Freq;
|
|
public int Left;
|
|
public int Right;
|
|
}
|
|
}
|
|
}
|