mirror of
https://github.com/crskycode/GARbro.git
synced 2024-12-25 12:24:12 +08:00
535 lines
21 KiB
C#
535 lines
21 KiB
C#
//! \file ArcIAR.cs
|
|
//! \date Fri Oct 23 12:31:15 2015
|
|
//! \brief Sas5 engine image archive.
|
|
//
|
|
// 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.Collections.Generic;
|
|
using System.ComponentModel.Composition;
|
|
using System.IO;
|
|
using GameRes.Utility;
|
|
using System.Text;
|
|
using System.Diagnostics;
|
|
using System.Drawing;
|
|
|
|
namespace GameRes.Formats.Sas5
|
|
{
|
|
internal class IarArchive : ArcFile
|
|
{
|
|
public readonly int Version;
|
|
|
|
public IarArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, int version)
|
|
: base (arc, impl, dir)
|
|
{
|
|
Version = version;
|
|
}
|
|
}
|
|
|
|
internal class IarImageInfo : ImageMetaData
|
|
{
|
|
public int Flags;
|
|
public bool Compressed;
|
|
public uint PaletteSize;
|
|
public int PackedSize;
|
|
public int UnpackedSize;
|
|
public int Stride;
|
|
}
|
|
|
|
[Export(typeof(ArchiveFormat))]
|
|
public class IarOpener : ArchiveFormat
|
|
{
|
|
public override string Tag { get { return "IAR"; } }
|
|
public override string Description { get { return "SAS5 engine images archive"; } }
|
|
public override uint Signature { get { return 0x20726169; } } // 'iar '
|
|
public override bool IsHierarchic { get { return false; } }
|
|
public override bool CanCreate { get { return false; } }
|
|
|
|
public override ArcFile TryOpen (ArcView file)
|
|
{
|
|
int version = file.View.ReadInt16 (4);
|
|
if (version < 1 || version > 4)
|
|
return null;
|
|
int file_count = file.View.ReadInt32 (0x18);
|
|
int count = file.View.ReadInt32 (0x1C);
|
|
if (count < file_count || !IsSaneCount (count))
|
|
return null;
|
|
|
|
var index = Sec5Opener.LookupIndex (file.Name);
|
|
string base_name = Path.GetFileNameWithoutExtension (file.Name);
|
|
Func<int, Entry> CreateEntry;
|
|
if (null == index)
|
|
CreateEntry = n => GetDefaultEntry (base_name, n);
|
|
else
|
|
CreateEntry = (n) => {
|
|
Entry entry;
|
|
if (index.TryGetValue (n, out entry))
|
|
return new Entry { Name = entry.Name, Type = entry.Type };
|
|
return GetDefaultEntry (base_name, n);
|
|
};
|
|
|
|
uint offset_size = version < 3 ? 4u : 8u;
|
|
Func<uint, long> ReadOffset;
|
|
if (version < 3)
|
|
ReadOffset = x => file.View.ReadUInt32 (x);
|
|
else
|
|
ReadOffset = x => file.View.ReadInt64 (x);
|
|
|
|
uint index_offset = 0x20;
|
|
var dir = new List<Entry> (count);
|
|
var next_offset = ReadOffset (index_offset);
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
var entry = CreateEntry (i);
|
|
entry.Offset = next_offset;
|
|
index_offset += offset_size;
|
|
next_offset = (i + 1) == count ? file.MaxOffset : ReadOffset (index_offset);
|
|
entry.Size = (uint)(next_offset - entry.Offset);
|
|
if (!entry.CheckPlacement (file.MaxOffset))
|
|
return null;
|
|
dir.Add (entry);
|
|
}
|
|
return new IarArchive (file, this, dir, version);
|
|
}
|
|
|
|
static Entry GetDefaultEntry (string base_name, int n)
|
|
{
|
|
return new Entry {
|
|
Name = string.Format ("{0}#{1:D5}", base_name, n),
|
|
Type = "image",
|
|
};
|
|
}
|
|
|
|
public override Stream OpenEntry (ArcFile arc, Entry entry)
|
|
{
|
|
var iarc = arc as IarArchive;
|
|
if (null == iarc)
|
|
return base.OpenEntry (arc, entry);
|
|
try
|
|
{
|
|
int flags = arc.File.View.ReadUInt16 (entry.Offset);
|
|
|
|
var image = new IarImage (iarc, entry);
|
|
if (0 != (flags & 0x1000))
|
|
image = CombineLayers (image, iarc);
|
|
else if (0 != (flags & 0x800))
|
|
image = CombineImage (image, iarc);
|
|
if (null == image)
|
|
return base.OpenEntry (arc, entry);
|
|
|
|
// internal 'IAR SAS5' format
|
|
var header = new byte[0x28+image.Info.PaletteSize];
|
|
using (var mem = new MemoryStream (header))
|
|
using (var writer = new BinaryWriter (mem))
|
|
{
|
|
writer.Write (0x00524149); // 'IAR'
|
|
writer.Write (0x35534153); // 'SAS5'
|
|
writer.Write (image.Info.Width);
|
|
writer.Write (image.Info.Height);
|
|
writer.Write (image.Info.OffsetX);
|
|
writer.Write (image.Info.OffsetY);
|
|
writer.Write (image.Info.BPP);
|
|
writer.Write (image.Info.Stride);
|
|
writer.Write (image.Info.PaletteSize);
|
|
writer.Write (image.Data.Length);
|
|
if (null != image.Palette)
|
|
writer.Write (image.Palette, 0, image.Palette.Length);
|
|
return new PrefixStream (header, new MemoryStream (image.Data));
|
|
}
|
|
}
|
|
catch (Exception X)
|
|
{
|
|
Trace.WriteLine (X.Message, entry.Name);
|
|
return base.OpenEntry (arc, entry);
|
|
}
|
|
}
|
|
|
|
IarImage CombineImage (IarImage overlay, IarArchive iarc)
|
|
{
|
|
using (var mem = new MemoryStream (overlay.Data))
|
|
using (var input = new BinaryReader (mem))
|
|
{
|
|
var dir = (List<Entry>)iarc.Dir;
|
|
int base_index = input.ReadInt32();
|
|
if (base_index >= dir.Count)
|
|
throw new InvalidFormatException ("Invalid base image index");
|
|
int diff_y = input.ReadInt32();
|
|
int diff_count = input.ReadInt32();
|
|
|
|
var overlay_info = overlay.Info;
|
|
var base_image = new IarImage (iarc, dir[base_index]);
|
|
byte[] output = base_image.Data;
|
|
if (overlay_info.Height != base_image.Info.Height || overlay_info.Stride != base_image.Info.Stride)
|
|
{
|
|
int src_y = 0;
|
|
int dst_pos = 0;
|
|
if (base_image.Info.Height > overlay_info.Height)
|
|
src_y = (int)(base_image.Info.Height - overlay_info.Height);
|
|
else if (base_image.Info.Height < overlay_info.Height)
|
|
dst_pos = (int)(overlay_info.Height - base_image.Info.Height) * overlay_info.Stride;
|
|
byte[] src = base_image.Data;
|
|
int base_stride = Math.Min (overlay_info.Stride, base_image.Info.Stride);
|
|
output = new byte[overlay_info.Height * overlay_info.Stride];
|
|
for (int y = src_y; y < base_image.Info.Height; ++y)
|
|
{
|
|
Buffer.BlockCopy (src, y * base_image.Info.Stride, output, dst_pos, base_stride);
|
|
dst_pos += overlay_info.Stride;
|
|
}
|
|
}
|
|
int pixel_size = overlay_info.BPP / 8;
|
|
int dst = diff_y * overlay_info.Stride;
|
|
for (int i = 0; i < diff_count; ++i)
|
|
{
|
|
int chunk_count = input.ReadUInt16();
|
|
int x = 0;
|
|
for (int j = 0; j < chunk_count; ++j)
|
|
{
|
|
int skip_count = pixel_size * input.ReadUInt16();
|
|
int copy_count = pixel_size * input.ReadUInt16();
|
|
|
|
x += skip_count;
|
|
input.Read (output, dst+x, copy_count);
|
|
x += copy_count;
|
|
}
|
|
dst += overlay_info.Stride;
|
|
}
|
|
return new IarImage (overlay_info, output, overlay.Palette);
|
|
}
|
|
}
|
|
|
|
IarImage CombineLayers (IarImage layers, IarArchive iarc)
|
|
{
|
|
layers.Info.Stride = (int)layers.Info.Width * 4;
|
|
layers.Info.BPP = 32;
|
|
var pixels = new byte[layers.Info.Stride * (int)layers.Info.Height];
|
|
var output = new IarImage (layers.Info, pixels);
|
|
using (var mem = new MemoryStream (layers.Data))
|
|
using (var input = new BinaryReader (mem))
|
|
{
|
|
int offset_x = 0, offset_y = 0;
|
|
var dir = (List<Entry>)iarc.Dir;
|
|
while (input.BaseStream.Position < input.BaseStream.Length)
|
|
{
|
|
int cmd = input.ReadByte();
|
|
switch (cmd)
|
|
{
|
|
case 0x21:
|
|
offset_x += input.ReadInt16();
|
|
offset_y += input.ReadInt16();
|
|
break;
|
|
|
|
case 0x00:
|
|
case 0x20:
|
|
{
|
|
int index = input.ReadInt32();
|
|
if (index < 0 || index >= dir.Count)
|
|
throw new InvalidFormatException ("Invalid image layer index");
|
|
var layer = new IarImage (iarc, dir[index]);
|
|
layer.Info.OffsetX -= offset_x;
|
|
layer.Info.OffsetY -= offset_y;
|
|
if (0x20 == cmd)
|
|
output.ApplyMask (layer);
|
|
else
|
|
output.Blend (layer);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
Trace.WriteLine (string.Format ("Unknown layer type 0x{0:X2}", cmd), "IAR");
|
|
break;
|
|
}
|
|
}
|
|
return output;
|
|
}
|
|
}
|
|
}
|
|
|
|
internal class IarImage
|
|
{
|
|
IarImageInfo m_info;
|
|
byte[] m_palette;
|
|
byte[] m_output;
|
|
|
|
public IarImageInfo Info { get { return m_info; } }
|
|
public byte[] Palette { get { return m_palette; } }
|
|
public byte[] Data { get { return m_output; } }
|
|
|
|
public IarImage (IarArchive iarc, Entry entry)
|
|
{
|
|
int flags = iarc.File.View.ReadUInt16 (entry.Offset);
|
|
int bpp;
|
|
switch (flags & 0x3E)
|
|
{
|
|
case 0x02: bpp = 8; break;
|
|
case 0x1C: bpp = 24; break;
|
|
case 0x3C: bpp = 32; break;
|
|
default: throw new NotSupportedException ("Not supported IAR image format");
|
|
}
|
|
var offset = entry.Offset;
|
|
m_info = new IarImageInfo
|
|
{
|
|
Flags = flags,
|
|
BPP = bpp,
|
|
Compressed = iarc.File.View.ReadByte (offset+3) != 0,
|
|
Width = iarc.File.View.ReadUInt32 (offset+0x20),
|
|
Height = iarc.File.View.ReadUInt32 (offset+0x24),
|
|
Stride = iarc.File.View.ReadInt32 (offset+0x28),
|
|
OffsetX = iarc.File.View.ReadInt32 (offset+0x18),
|
|
OffsetY = iarc.File.View.ReadInt32 (offset+0x1C),
|
|
UnpackedSize = iarc.File.View.ReadInt32 (offset+8),
|
|
PaletteSize = iarc.File.View.ReadUInt32 (offset+0xC),
|
|
PackedSize = iarc.File.View.ReadInt32 (offset+0x10),
|
|
};
|
|
uint header_size = 1 == iarc.Version ? 0x30u : iarc.Version < 4 ? 0x40u : 0x48u;
|
|
offset += header_size;
|
|
uint input_size = entry.Size - header_size;
|
|
|
|
if (m_info.PaletteSize > 0)
|
|
{
|
|
m_palette = new byte[m_info.PaletteSize];
|
|
iarc.File.View.Read (offset, m_palette, 0, m_info.PaletteSize);
|
|
offset += m_info.PaletteSize;
|
|
input_size -= m_info.PaletteSize;
|
|
}
|
|
m_output = new byte[m_info.UnpackedSize];
|
|
using (var input = iarc.File.CreateStream (offset, input_size))
|
|
{
|
|
if (m_info.Compressed)
|
|
{
|
|
using (var reader = new IarDecompressor (input))
|
|
reader.Unpack (m_output);
|
|
}
|
|
else
|
|
input.Read (m_output, 0, m_output.Length);
|
|
}
|
|
}
|
|
|
|
public IarImage (IarImageInfo info, byte[] pixels, byte[] palette = null)
|
|
{
|
|
m_info = info;
|
|
m_output = pixels;
|
|
m_palette = palette;
|
|
}
|
|
|
|
public void Blend (IarImage overlay)
|
|
{
|
|
int pixel_size = Info.Stride / (int)Info.Width;
|
|
if (pixel_size < 4)
|
|
return;
|
|
var self = new Rectangle (-Info.OffsetX, -Info.OffsetY, (int)Info.Width, (int)Info.Height);
|
|
var src = new Rectangle (-overlay.Info.OffsetX, -overlay.Info.OffsetY,
|
|
(int)overlay.Info.Width, (int)overlay.Info.Height);
|
|
var blend = Rectangle.Intersect (self, src);
|
|
if (blend.IsEmpty)
|
|
return;
|
|
src.X = blend.Left - src.Left;
|
|
src.Y = blend.Top - src.Top;
|
|
src.Width = blend.Width;
|
|
src.Height= blend.Height;
|
|
if (src.Width <= 0 || src.Height <= 0)
|
|
return;
|
|
|
|
int x = blend.Left - self.Left;
|
|
int y = blend.Top - self.Top;
|
|
int dst = y * Info.Stride + x * pixel_size;
|
|
int ov = src.Top * overlay.Info.Stride + src.Left * pixel_size;
|
|
for (int row = 0; row < src.Height; ++row)
|
|
{
|
|
for (int col = 0; col < src.Width; ++col)
|
|
{
|
|
int src_pixel = ov + col*pixel_size;
|
|
int src_alpha = overlay.Data[src_pixel+3];
|
|
if (src_alpha > 0)
|
|
{
|
|
int dst_pixel = dst + col*pixel_size;
|
|
if (0xFF == src_alpha || 0 == m_output[dst_pixel+3])
|
|
{
|
|
Buffer.BlockCopy (overlay.Data, src_pixel, m_output, dst_pixel, pixel_size);
|
|
}
|
|
else
|
|
{
|
|
m_output[dst_pixel+0] = (byte)((overlay.Data[src_pixel+0] * src_alpha
|
|
+ m_output[dst_pixel+0] * (0xFF - src_alpha)) / 0xFF);
|
|
m_output[dst_pixel+1] = (byte)((overlay.Data[src_pixel+1] * src_alpha
|
|
+ m_output[dst_pixel+1] * (0xFF - src_alpha)) / 0xFF);
|
|
m_output[dst_pixel+2] = (byte)((overlay.Data[src_pixel+2] * src_alpha
|
|
+ m_output[dst_pixel+2] * (0xFF - src_alpha)) / 0xFF);
|
|
m_output[dst_pixel+3] = (byte)Math.Max (src_alpha, m_output[dst_pixel+3]);
|
|
}
|
|
}
|
|
}
|
|
dst += Info.Stride;
|
|
ov += overlay.Info.Stride;
|
|
}
|
|
}
|
|
|
|
public void ApplyMask (IarImage mask)
|
|
{
|
|
int pixel_size = Info.Stride / (int)Info.Width;
|
|
if (pixel_size < 4 || mask.Info.BPP != 8)
|
|
return;
|
|
var self = new Rectangle (-Info.OffsetX, -Info.OffsetY, (int)Info.Width, (int)Info.Height);
|
|
var mask_region = new Rectangle (-mask.Info.OffsetX, -mask.Info.OffsetY,
|
|
(int)mask.Info.Width, (int)mask.Info.Height);
|
|
var masked = Rectangle.Intersect (self, mask_region);
|
|
if (masked.IsEmpty)
|
|
return;
|
|
mask_region.X = masked.Left - mask_region.Left;
|
|
mask_region.Y = masked.Top - mask_region.Top;
|
|
mask_region.Width = masked.Width;
|
|
mask_region.Height= masked.Height;
|
|
if (mask_region.Width <= 0 || mask_region.Height <= 0)
|
|
return;
|
|
|
|
int x = masked.Left - self.Left;
|
|
int y = masked.Top - self.Top;
|
|
int dst = y * Info.Stride + x * pixel_size;
|
|
int src = mask_region.Top * mask.Info.Stride + mask_region.Left;
|
|
for (int row = 0; row < mask_region.Height; ++row)
|
|
{
|
|
int dst_pixel = dst+3;
|
|
for (int col = 0; col < mask_region.Width; ++col)
|
|
{
|
|
m_output[dst_pixel] = mask.Data[src+col];
|
|
dst_pixel += pixel_size;
|
|
}
|
|
dst += Info.Stride;
|
|
src += mask.Info.Stride;
|
|
}
|
|
}
|
|
}
|
|
|
|
internal sealed class IarDecompressor : IDisposable
|
|
{
|
|
BinaryReader m_input;
|
|
|
|
public IarDecompressor (Stream input)
|
|
{
|
|
m_input = new ArcView.Reader (input);
|
|
}
|
|
|
|
int m_bits = 1;
|
|
|
|
public void Unpack (byte[] output)
|
|
{
|
|
m_bits = 1;
|
|
int dst = 0;
|
|
while (dst < output.Length)
|
|
{
|
|
if (1 == GetNextBit())
|
|
{
|
|
output[dst++] = m_input.ReadByte();
|
|
continue;
|
|
}
|
|
int offset, count;
|
|
if (1 == GetNextBit())
|
|
{
|
|
int tmp = GetNextBit();
|
|
if (1 == GetNextBit())
|
|
offset = 1;
|
|
else if (1 == GetNextBit())
|
|
offset = 0x201;
|
|
else
|
|
{
|
|
tmp = (tmp << 1) | GetNextBit();
|
|
if (1 == GetNextBit())
|
|
offset = 0x401;
|
|
else
|
|
{
|
|
tmp = (tmp << 1) | GetNextBit();
|
|
if (1 == GetNextBit())
|
|
offset = 0x801;
|
|
else
|
|
{
|
|
offset = 0x1001;
|
|
tmp = (tmp << 1) | GetNextBit();
|
|
}
|
|
}
|
|
}
|
|
offset += (tmp << 8) | m_input.ReadByte();
|
|
if (1 == GetNextBit())
|
|
count = 3;
|
|
else if (1 == GetNextBit())
|
|
count = 4;
|
|
else if (1 == GetNextBit())
|
|
count = 5;
|
|
else if (1 == GetNextBit())
|
|
count = 6;
|
|
else if (1 == GetNextBit())
|
|
count = 7 + GetNextBit();
|
|
else if (1 == GetNextBit())
|
|
count = 17 + m_input.ReadByte();
|
|
else
|
|
{
|
|
count = GetNextBit() << 2;
|
|
count |= GetNextBit() << 1;
|
|
count |= GetNextBit();
|
|
count += 9;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
count = 2;
|
|
if (1 == GetNextBit())
|
|
{
|
|
offset = GetNextBit() << 10;
|
|
offset |= GetNextBit() << 9;
|
|
offset |= GetNextBit() << 8;
|
|
offset = (offset | m_input.ReadByte()) + 0x100;
|
|
}
|
|
else
|
|
{
|
|
offset = 1 + m_input.ReadByte();
|
|
if (0x100 == offset)
|
|
break;
|
|
}
|
|
}
|
|
Binary.CopyOverlapped (output, dst - offset, dst, count);
|
|
dst += count;
|
|
}
|
|
}
|
|
|
|
int GetNextBit ()
|
|
{
|
|
if (1 == m_bits)
|
|
{
|
|
m_bits = m_input.ReadUInt16() | 0x10000;
|
|
}
|
|
int b = m_bits & 1;
|
|
m_bits >>= 1;
|
|
return b;
|
|
}
|
|
|
|
#region IDisposable Members
|
|
bool _disposed = false;
|
|
public void Dispose ()
|
|
{
|
|
if (!_disposed)
|
|
{
|
|
m_input.Dispose();
|
|
_disposed = true;
|
|
}
|
|
}
|
|
#endregion
|
|
}
|
|
}
|