mirror of
https://github.com/crskycode/GARbro.git
synced 2024-11-30 08:55:39 +08:00
437 lines
18 KiB
C#
437 lines
18 KiB
C#
//! \file ImageMAI2.cs
|
|
//! \date 2023 Oct 24
|
|
//! \brief Izumi engine image format (PC-98).
|
|
//
|
|
// Copyright (C) 2023 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;
|
|
using System.ComponentModel.Composition;
|
|
using System.IO;
|
|
using System.Windows.Media;
|
|
using System.Windows.Media.Imaging;
|
|
|
|
namespace GameRes.Formats.Izumi
|
|
{
|
|
internal class Mai2MetaData : ImageMetaData
|
|
{
|
|
public byte Flags;
|
|
public ushort Plane0Size;
|
|
public ushort Plane1Size;
|
|
public ushort Plane2Size;
|
|
public ushort Plane3Size;
|
|
|
|
public bool HasPalette => (Flags & 0x80) != 0;
|
|
}
|
|
|
|
[Export(typeof(ImageFormat))]
|
|
public class Mai2Format : ImageFormat
|
|
{
|
|
public override string Tag => "MAI/IZUMI";
|
|
public override string Description => "Izumi engine image format";
|
|
public override uint Signature => 0x3249414D; // 'MAI2'
|
|
|
|
public override ImageMetaData ReadMetaData (IBinaryStream file)
|
|
{
|
|
var header = file.ReadHeader (0x14);
|
|
ushort xy = header.ToUInt16 (4);
|
|
return new Mai2MetaData {
|
|
Width = (uint)(header.ToUInt16 (6) << 3),
|
|
Height = header.ToUInt16 (8),
|
|
OffsetX = xy % 0x50,
|
|
OffsetY = xy / 0x50,
|
|
BPP = 4,
|
|
Flags = header[0xA],
|
|
Plane0Size = header.ToUInt16 (0x0C),
|
|
Plane1Size = header.ToUInt16 (0x0E),
|
|
Plane2Size = header.ToUInt16 (0x10),
|
|
Plane3Size = header.ToUInt16 (0x12),
|
|
};
|
|
}
|
|
|
|
public override ImageData Read (IBinaryStream file, ImageMetaData info)
|
|
{
|
|
var reader = new Mai2Reader (file, (Mai2MetaData)info);
|
|
return reader.Unpack();
|
|
}
|
|
|
|
public override void Write (Stream file, ImageData image)
|
|
{
|
|
throw new System.NotImplementedException ("Mai2Format.Write not implemented");
|
|
}
|
|
}
|
|
|
|
internal class Mai2Reader
|
|
{
|
|
IBinaryStream m_input;
|
|
Mai2MetaData m_info;
|
|
|
|
public Mai2Reader (IBinaryStream input, Mai2MetaData info)
|
|
{
|
|
m_input = input;
|
|
m_info = info;
|
|
}
|
|
|
|
byte[][] m_planes;
|
|
int m_stride;
|
|
int m_height;
|
|
|
|
public ImageData Unpack ()
|
|
{
|
|
m_input.Position = 0x14;
|
|
BitmapPalette palette = null;
|
|
if (m_info.HasPalette)
|
|
palette = ReadPalette();
|
|
else
|
|
palette = BitmapPalettes.Gray16;
|
|
|
|
m_height = m_info.iHeight;
|
|
m_stride = m_info.iWidth >> 3;
|
|
int plane_size = m_stride * m_info.iHeight;
|
|
m_planes = new byte[][] {
|
|
new byte[plane_size], new byte[plane_size], new byte[plane_size], new byte[plane_size],
|
|
};
|
|
|
|
long next_pos = m_input.Position + m_info.Plane0Size;
|
|
if ((m_info.Flags & 1) != 0)
|
|
UnpackPlane (m_planes[0]);
|
|
|
|
m_input.Position = next_pos;
|
|
next_pos += m_info.Plane1Size;
|
|
if ((m_info.Flags & 2) != 0)
|
|
UnpackPlane (m_planes[1]);
|
|
|
|
m_input.Position = next_pos;
|
|
next_pos += m_info.Plane2Size;
|
|
if ((m_info.Flags & 4) != 0)
|
|
UnpackPlane (m_planes[2]);
|
|
|
|
m_input.Position = next_pos;
|
|
if ((m_info.Flags & 8) != 0)
|
|
UnpackPlane (m_planes[3]);
|
|
|
|
int output_stride = m_info.iWidth >> 1;
|
|
var output = new byte[output_stride * m_info.iHeight];
|
|
FlattenPlanes (output, output_stride);
|
|
|
|
return ImageData.Create (m_info, PixelFormats.Indexed4, palette, output, output_stride);
|
|
}
|
|
|
|
void UnpackPlane (byte[] plane)
|
|
{
|
|
int dst_row = 0;
|
|
for (int x = 0; x < m_stride; ++x)
|
|
{
|
|
int dst = dst_row;
|
|
int remaining = m_height;
|
|
while (remaining > 0)
|
|
{
|
|
int count = 1;
|
|
int ctl = m_input.ReadUInt8();
|
|
if (ctl < 0x90)
|
|
{
|
|
count = ctl & 0x1F;
|
|
if (0 == count)
|
|
count = m_input.ReadUInt8();
|
|
switch (ctl >> 5)
|
|
{
|
|
case 0:
|
|
for (int i = 0; i < count; ++i)
|
|
plane[dst++] = 0;
|
|
break;
|
|
case 1:
|
|
for (int i = 0; i < count; ++i)
|
|
plane[dst++] = 0xFF;
|
|
break;
|
|
case 2:
|
|
Buffer.BlockCopy (m_planes[0], dst, plane, dst, count);
|
|
dst += count;
|
|
break;
|
|
case 3:
|
|
Buffer.BlockCopy (m_planes[1], dst, plane, dst, count);
|
|
dst += count;
|
|
break;
|
|
case 4:
|
|
Buffer.BlockCopy (m_planes[2], dst, plane, dst, count);
|
|
dst += count;
|
|
break;
|
|
}
|
|
}
|
|
else if (ctl < 0xF0)
|
|
{
|
|
count = ctl & 0xF;
|
|
if (0 == count)
|
|
count = m_input.ReadUInt8();
|
|
int off = 0;
|
|
switch (ctl >> 4)
|
|
{
|
|
case 0x9: off = 0x10; break;
|
|
case 0xA: off = 8; break;
|
|
case 0xB: off = 4; break;
|
|
case 0xC: off = 2; break;
|
|
case 0xD: off = m_height << 1; break;
|
|
case 0xE: off = m_height; break;
|
|
}
|
|
Binary.CopyOverlapped (plane, dst - off, dst, count);
|
|
dst += count;
|
|
}
|
|
else if (ctl < 0xF9)
|
|
{
|
|
count = ctl & 0xF;
|
|
if (0 == count)
|
|
count = m_input.ReadUInt8();
|
|
m_input.Read (plane, dst, count);
|
|
dst += count;
|
|
}
|
|
else
|
|
{
|
|
count = m_input.ReadUInt8();
|
|
switch (ctl)
|
|
{
|
|
case 0xF9:
|
|
dst += count;
|
|
break;
|
|
case 0xFA:
|
|
{
|
|
byte b = m_input.ReadUInt8();
|
|
for (int i = 0; i < count; ++i)
|
|
plane[dst++] = b;
|
|
break;
|
|
}
|
|
case 0xFB:
|
|
{
|
|
int src = 0;
|
|
if ((count & 0x80) != 0)
|
|
{
|
|
count &= 0x7F;
|
|
src = 1;
|
|
}
|
|
if (0 == count)
|
|
count = m_input.ReadUInt8();
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
plane[dst] = (byte)~m_planes[src][dst];
|
|
dst++;
|
|
}
|
|
break;
|
|
}
|
|
case 0xFC:
|
|
if ((count & 0x80) != 0)
|
|
{
|
|
count &= 0x7F;
|
|
if (0 == count)
|
|
count = m_input.ReadUInt8();
|
|
byte al, ah;
|
|
al = m_input.ReadUInt8();
|
|
ah = (byte)(al << 4 | al & 0x0F);
|
|
al = (byte)(al >> 4 | al & 0xF0);
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
plane[dst++] = al;
|
|
plane[dst++] = ah;
|
|
}
|
|
count <<= 1;
|
|
}
|
|
else
|
|
{
|
|
if (0 == count)
|
|
count = m_input.ReadUInt8();
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
plane[dst] = (byte)~m_planes[2][dst];
|
|
dst++;
|
|
}
|
|
}
|
|
break;
|
|
case 0xFD:
|
|
if ((count & 0x80) != 0)
|
|
{
|
|
ctl = count;
|
|
count = ctl & 0x3F;
|
|
if (0 == count)
|
|
count = m_input.ReadUInt8();
|
|
byte al, ah, bl, bh;
|
|
al = m_input.ReadUInt8();
|
|
bl = (byte)(al & 0xF0 | al >> 4);
|
|
bh = (byte)(al & 0x0F | al << 4);
|
|
if (ctl < 0xC0)
|
|
{
|
|
al = Binary.RotByteR (bl, 2);
|
|
ah = Binary.RotByteR (bh, 2);
|
|
}
|
|
else
|
|
{
|
|
ah = m_input.ReadUInt8();
|
|
al = (byte)(ah & 0xF0 | ah >> 4);
|
|
ah = (byte)(ah & 0x0F | ah << 4);
|
|
}
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
plane[dst++] = bl;
|
|
plane[dst++] = bh;
|
|
plane[dst++] = al;
|
|
plane[dst++] = ah;
|
|
}
|
|
count <<= 2;
|
|
}
|
|
else
|
|
{
|
|
if (0 == count)
|
|
count = m_input.ReadUInt8();
|
|
byte al = m_input.ReadUInt8();
|
|
byte ah = m_input.ReadUInt8();
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
plane[dst++] = al;
|
|
plane[dst++] = ah;
|
|
}
|
|
count <<= 1;
|
|
}
|
|
break;
|
|
case 0xFE:
|
|
ctl = count;
|
|
count &= 0x3F;
|
|
if (0 == count)
|
|
count = m_input.ReadUInt8();
|
|
if (ctl < 0x40)
|
|
{
|
|
m_input.Read (plane, dst, 4);
|
|
count <<= 2;
|
|
Binary.CopyOverlapped (plane, dst, dst + 4, count - 4);
|
|
dst += count;
|
|
}
|
|
else
|
|
{
|
|
int psrc, pmask;
|
|
if ((ctl & 0x80) == 0)
|
|
{
|
|
psrc = 0;
|
|
pmask = 1;
|
|
}
|
|
else if (ctl < 0xC0)
|
|
{
|
|
psrc = 0;
|
|
pmask = 2;
|
|
}
|
|
else
|
|
{
|
|
psrc = 1;
|
|
pmask = 2;
|
|
}
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
byte b = m_planes[psrc][dst];
|
|
b &= m_planes[pmask][dst];
|
|
plane[dst++] = b;
|
|
}
|
|
}
|
|
break;
|
|
case 0xFF:
|
|
{
|
|
Func<int, byte> op;
|
|
if (count < 0x40)
|
|
{
|
|
op = src => (byte)(m_planes[0][src] | m_planes[1][src]);
|
|
}
|
|
else if (count < 0x80)
|
|
{
|
|
op = src => (byte)(m_planes[0][src] ^ m_planes[1][src]);
|
|
count &= 0x3F;
|
|
}
|
|
else
|
|
{
|
|
if (count < 0xA0)
|
|
op = src => (byte)(m_planes[0][src] | m_planes[2][src]);
|
|
else if (count < 0xC0)
|
|
op = src => (byte)(m_planes[1][src] | m_planes[2][src]);
|
|
else if (count < 0xE0)
|
|
op = src => (byte)(m_planes[0][src] ^ m_planes[2][src]);
|
|
else
|
|
op = src => (byte)(m_planes[1][src] ^ m_planes[2][src]);
|
|
count &= 0x1F;
|
|
}
|
|
if (0 == count)
|
|
count = m_input.ReadUInt8();
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
plane[dst] = op (dst);
|
|
dst++;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
remaining -= count;
|
|
}
|
|
dst_row += m_height;
|
|
}
|
|
}
|
|
|
|
void FlattenPlanes (byte[] output, int output_stride)
|
|
{
|
|
int plane_size = m_planes[0].Length;
|
|
int src = 0;
|
|
for (int x = 0; x < output_stride; x += 4)
|
|
{
|
|
int dst = x;
|
|
for (int y = 0; y < m_info.iHeight; ++y)
|
|
{
|
|
byte b0 = m_planes[0][src];
|
|
byte b1 = m_planes[1][src];
|
|
byte b2 = m_planes[2][src];
|
|
byte b3 = m_planes[3][src];
|
|
++src;
|
|
for (int j = 0; j < 8; j += 2)
|
|
{
|
|
byte px = (byte)((((b0 << j) & 0x80) >> 3)
|
|
| (((b1 << j) & 0x80) >> 2)
|
|
| (((b2 << j) & 0x80) >> 1)
|
|
| (((b3 << j) & 0x80) >> 0));
|
|
px |= (byte)((((b0 << j) & 0x40) >> 6)
|
|
| (((b1 << j) & 0x40) >> 5)
|
|
| (((b2 << j) & 0x40) >> 4)
|
|
| (((b3 << j) & 0x40) >> 3));
|
|
output[dst+j/2] = px;
|
|
}
|
|
dst += output_stride;
|
|
}
|
|
}
|
|
}
|
|
|
|
BitmapPalette ReadPalette ()
|
|
{
|
|
using (var bits = new MsbBitStream (m_input.AsStream, true))
|
|
{
|
|
var colors = new Color[16];
|
|
for (int i = 0; i < 16; ++i)
|
|
{
|
|
int r = bits.GetBits (4) * 0x11;
|
|
int g = bits.GetBits (4) * 0x11;
|
|
int b = bits.GetBits (4) * 0x11;
|
|
colors[i] = Color.FromRgb ((byte)r, (byte)g, (byte)b);
|
|
}
|
|
return new BitmapPalette (colors);
|
|
}
|
|
}
|
|
}
|
|
}
|