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(Legacy): implemented Speed images.

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morkt 2018-07-25 10:12:52 +04:00
parent df99785d39
commit 4d6e989562
1 changed files with 179 additions and 0 deletions
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Legacy/Speed/ImageDAT.cs Normal file
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//! \file ImageDAT.cs
//! \date 2018 Jul 07
//! \brief Studio Jikkenshitsu compressed image.
//
// Copyright (C) 2018 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.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
using System.Windows.Media.Imaging;
namespace GameRes.Formats.Speed
{
internal class SpMetaData : ImageMetaData
{
public int Flags;
public int Colors;
}
[Export(typeof(ImageFormat))]
public class SpDatFormat : ImageFormat
{
public override string Tag { get { return "DAT/SPEED"; } }
public override string Description { get { return "Studio Jikkenshitsu image format"; } }
public override uint Signature { get { return 0; } }
public SpDatFormat ()
{
Extensions = new string[0];
Signatures = new uint[] { 0x010003, 0x010007, 0 };
}
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0x22);
if (header.ToInt32 (4) != 0)
return null;
int flags = header.ToUInt16 (0);
if ((flags & ~7) != 0)
return null;
return new SpMetaData {
Width = header.ToUInt16 (0x16),
Height = header.ToUInt16 (0x18),
BPP = 8,
Flags = flags,
Colors = header.ToUInt16 (0x1E),
};
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var reader = new SpReader (file, (SpMetaData)info);
var pixels = reader.Unpack();
return ImageData.CreateFlipped (info, reader.Format, reader.Palette, pixels, reader.Stride);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("SpDatFormat.Write not implemented");
}
}
internal class SpReader
{
IBinaryStream m_input;
SpMetaData m_info;
byte[] m_output;
int m_stride;
public PixelFormat Format { get; private set; }
public int Stride { get { return m_stride; } }
public BitmapPalette Palette { get; private set; }
public SpReader (IBinaryStream input, SpMetaData info)
{
m_input = input;
m_info = info;
m_output = new byte[info.Width * info.Height];
m_stride = (int)info.Width;
}
public byte[] Unpack ()
{
m_input.Position = 0x22;
int packed_size = m_input.ReadInt32();
Palette = ImageFormat.ReadPalette (m_input.AsStream, m_info.Colors);
UnpackRle (packed_size, m_output);
if (packed_size != 0 && (m_info.Flags & 4) != 0)
{
var alpha = new byte[m_output.Length >> 1];
packed_size = m_input.ReadInt32();
UnpackRle (packed_size, alpha);
// Format = PixelFormats.Gray4;
// m_stride >>= 1;
// return alpha;
return ConvertToRgbA (alpha);
}
Format = PixelFormats.Indexed8;
return m_output;
}
byte[] ConvertToRgbA (byte[] alpha)
{
m_stride = (int)m_info.Width * 4;
var pixels = new byte[m_stride * (int)m_info.Height];
var colors = Palette.Colors;
int dst = 0;
for (int src = 0; src < m_output.Length; ++src)
{
var color = colors[m_output[src]];
int a = ((alpha[src >> 1] >> ((~src & 1) << 2)) & 0xF) * 0x11;
pixels[dst++] = color.B;
pixels[dst++] = color.G;
pixels[dst++] = color.R;
pixels[dst++] = (byte)a;
}
Format = PixelFormats.Bgra32;
return pixels;
}
void UnpackRle (int packed_size, byte[] output)
{
if (0 == packed_size)
{
m_input.Read (output, 0, output.Length);
return;
}
int dst = 0;
int state = 0;
byte pixel = 0;
for (int i = 0; i < packed_size; ++i)
{
int rep = m_input.ReadByte();
if (-1 == rep)
break;
if (0 == state)
{
state = 1;
output[dst++] = (byte)rep;
}
else if (1 == state)
{
if (output[dst - 1] == rep)
{
pixel = (byte)rep;
state = 2;
}
output[dst++] = (byte)rep;
}
else
{
int count = rep - 2;
for (int j = 0; j < count; ++j)
output[dst++] = pixel;
state = 0;
}
}
}
}
}