mirror of
https://github.com/crskycode/GARbro.git
synced 2024-12-19 01:14:13 +08:00
343 lines
12 KiB
C#
343 lines
12 KiB
C#
//! \file ImageGBC.cs
|
|
//! \date Mon Oct 03 04:16:11 2016
|
|
//! \brief Primel the Adventure System resource archive.
|
|
//
|
|
// Copyright (C) 2016-2017 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.ComponentModel.Composition;
|
|
using System.IO;
|
|
using System.Windows.Media;
|
|
using GameRes.Utility;
|
|
|
|
namespace GameRes.Formats.Primel
|
|
{
|
|
internal class GbcMetaData : ImageMetaData
|
|
{
|
|
public int Flags;
|
|
}
|
|
|
|
[Export(typeof(ImageFormat))]
|
|
public class GbcFormat : ImageFormat
|
|
{
|
|
public override string Tag { get { return "GBC"; } }
|
|
public override string Description { get { return "Primel Adventure System image format"; } }
|
|
public override uint Signature { get { return 0x46434247; } } // 'GBCF'
|
|
|
|
public override ImageMetaData ReadMetaData (IBinaryStream stream)
|
|
{
|
|
var header = stream.ReadHeader (0x14);
|
|
return new GbcMetaData
|
|
{
|
|
Width = header.ToUInt32 (8),
|
|
Height = header.ToUInt32 (0xC),
|
|
BPP = header.ToUInt16 (0x10),
|
|
Flags = header.ToUInt16 (0x12),
|
|
};
|
|
}
|
|
|
|
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
|
|
{
|
|
using (var reader = new GbcReader (stream.AsStream, (GbcMetaData)info))
|
|
{
|
|
reader.Unpack();
|
|
return ImageData.Create (info, reader.Format, null, reader.Pixels);
|
|
}
|
|
}
|
|
|
|
public override void Write (Stream file, ImageData image)
|
|
{
|
|
throw new System.NotImplementedException ("GbcFormat.Write not implemented");
|
|
}
|
|
}
|
|
|
|
internal sealed class GbcReader : IDisposable
|
|
{
|
|
MsbBitStream m_input;
|
|
byte[] m_output;
|
|
GbcMetaData m_info;
|
|
int m_stride;
|
|
|
|
public byte[] Pixels { get { return m_output; } }
|
|
public PixelFormat Format { get; private set; }
|
|
|
|
public GbcReader (Stream input, GbcMetaData info)
|
|
{
|
|
if (32 == info.BPP)
|
|
Format = PixelFormats.Bgra32;
|
|
else if (24 == info.BPP)
|
|
Format = PixelFormats.Bgr24;
|
|
else if (8 == info.BPP)
|
|
Format = PixelFormats.Gray8;
|
|
else
|
|
throw new InvalidFormatException();
|
|
m_input = new MsbBitStream (input, true);
|
|
m_info = info;
|
|
m_stride = (int)m_info.Width * m_info.BPP / 8;
|
|
m_output = new byte[m_stride * (int)m_info.Height];
|
|
}
|
|
|
|
public void Unpack ()
|
|
{
|
|
if (0x800 == (m_info.Flags & 0xFF00))
|
|
UnpackV2();
|
|
else
|
|
UnpackV1();
|
|
}
|
|
|
|
void UnpackV1 ()
|
|
{
|
|
m_input.Input.Position = 0x30;
|
|
int pixel_size = m_info.BPP / 8;
|
|
int blocks_w = (int)(m_info.Width + 7) / 8;
|
|
int blocks_h = (int)(m_info.Height + 7) / 8;
|
|
short[,] block = new short[pixel_size, 64];
|
|
|
|
for (int by = 0; by < blocks_h; ++by)
|
|
{
|
|
int dst_line = by * 8 * m_stride;
|
|
for (int bx = 0; bx < blocks_w; ++bx)
|
|
{
|
|
int dst_block = dst_line + bx * 8 * pixel_size;
|
|
|
|
short last = 0;
|
|
for (int i = 0; i < 64; i++)
|
|
{
|
|
last += (short)GetInt();
|
|
block[0, ZigzagOrder[i]] = last;
|
|
}
|
|
for (int j = 1; j < pixel_size; ++j)
|
|
{
|
|
for (int i = 0; i < 64; ++i)
|
|
block[j, ZigzagOrder[i]] = (short)GetInt();
|
|
RestoreBlock (block, j);
|
|
}
|
|
|
|
for (int y = 0; y < 8; ++y)
|
|
{
|
|
if (by + 1 == blocks_h && (by * 8 + y) >= m_info.Height)
|
|
break;
|
|
|
|
int src = y * 8;
|
|
int dst = dst_block + y * m_stride;
|
|
for (int x = 0; x < 8; ++x)
|
|
{
|
|
if (bx + 1 == blocks_w && (bx * 8 + x) >= m_info.Width)
|
|
break;
|
|
|
|
int p = dst + (x + 1) * pixel_size - 1;
|
|
for (int j = 0; j < pixel_size; ++j)
|
|
{
|
|
m_output[p--] = (byte)(block[j, src] - 128);
|
|
}
|
|
++src;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void UnpackV2 ()
|
|
{
|
|
m_input.Input.Position = 0x30;
|
|
int pixel_size = m_info.BPP / 8;
|
|
int blocks_w = (int)(m_info.Width + 7) / 8;
|
|
int blocks_h = (int)(m_info.Height + 7) / 8;
|
|
short[,] block = new short[pixel_size, 64];
|
|
|
|
for (int by = 0; by < blocks_h; ++by)
|
|
{
|
|
int dst_line = by * 8 * m_stride;
|
|
for (int bx = 0; bx < blocks_w; ++bx)
|
|
{
|
|
int dst_block = dst_line + bx * 8 * pixel_size;
|
|
|
|
for (int i = 0; i < pixel_size; ++i)
|
|
{
|
|
for (int j = 0; j < 64; ++j)
|
|
block[i,j] = 0;
|
|
RestoreBlockV2 (block, i);
|
|
}
|
|
|
|
for (int y = 0; y < 8; ++y)
|
|
{
|
|
if (by + 1 == blocks_h && (by * 8 + y) >= m_info.Height)
|
|
break;
|
|
|
|
int src = y * 8;
|
|
int dst = dst_block + y * m_stride;
|
|
for (int x = 0; x < 8; ++x)
|
|
{
|
|
if (bx + 1 == blocks_w && (bx * 8 + x) >= m_info.Width)
|
|
break;
|
|
if (4 == pixel_size)
|
|
{
|
|
m_output[dst + x * 4 + 2] = (byte)block[0, src+x];
|
|
m_output[dst + x * 4 + 1] = (byte)block[1, src+x];
|
|
m_output[dst + x * 4] = (byte)block[2, src+x];
|
|
m_output[dst + x * 4 + 3] = (byte)block[3, src+x];
|
|
}
|
|
else if (3 == pixel_size)
|
|
{
|
|
m_output[dst + x * 3 + 2] = (byte)block[0, src+x];
|
|
m_output[dst + x * 3 + 1] = (byte)block[1, src+x];
|
|
m_output[dst + x * 3] = (byte)block[2, src+x];
|
|
}
|
|
else
|
|
{
|
|
var val = block[0, src+x];
|
|
m_output[dst + x] = (byte)val;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void RestoreBlock (short[,] block, int n)
|
|
{
|
|
int row = 8;
|
|
for (int col = 1; col < 8; ++col)
|
|
{
|
|
block[n, col] += block[n, col - 1];
|
|
block[n, row] += block[n, row - 8];
|
|
row += 8;
|
|
}
|
|
row = 8;
|
|
for (int y = 1; y < 8; ++y)
|
|
{
|
|
for (int x = 1; x < 8; ++x)
|
|
{
|
|
block[n, row + x] += block[n, row + x - 9];
|
|
}
|
|
row += 8;
|
|
}
|
|
}
|
|
|
|
void RestoreBlockV2 (short[,] block, int plane)
|
|
{
|
|
int skip;
|
|
for (int i = 0; i < 64; ++i)
|
|
{
|
|
int n = GetIntV2 (out skip);
|
|
if (n != 0)
|
|
block[plane, ZigzagOrder[i]] = (short)n;
|
|
else if (0 == skip)
|
|
break;
|
|
else
|
|
i += skip - 1;
|
|
}
|
|
for (int row = 0; row < 64; row += 8)
|
|
for (int x = 1; x < 8; ++x)
|
|
{
|
|
block[plane, row+x] += block[plane, row+x-1];
|
|
}
|
|
for (int row = 8; row < 64; row += 8)
|
|
for (int x = 0; x < 8; ++x)
|
|
{
|
|
block[plane, row+x] += block[plane, row-8+x];
|
|
}
|
|
}
|
|
|
|
int GetInt ()
|
|
{
|
|
int count = m_input.GetBits (4);
|
|
switch (count)
|
|
{
|
|
case 0: return 0;
|
|
case 1: return 1;
|
|
|
|
case 2:
|
|
case 3:
|
|
case 4:
|
|
case 5:
|
|
case 6:
|
|
case 7:
|
|
return m_input.GetBits (count - 1) + (1 << (count - 1));
|
|
|
|
case 8: return -1;
|
|
case 9: return -2;
|
|
|
|
default:
|
|
return m_input.GetBits (count - 9) - (2 << (count - 9));
|
|
|
|
case -1: throw new EndOfStreamException();
|
|
}
|
|
}
|
|
|
|
int GetIntV2 (out int repeat)
|
|
{
|
|
int count = m_input.GetBits (4);
|
|
repeat = 0;
|
|
switch (count)
|
|
{
|
|
case 0:
|
|
repeat = 1;
|
|
while (repeat < 16 && 1 == m_input.GetNextBit())
|
|
++repeat;
|
|
if (16 == repeat)
|
|
repeat = 0;
|
|
return 0;
|
|
|
|
case 1: return 1;
|
|
|
|
case 2:
|
|
case 3:
|
|
case 4:
|
|
case 5:
|
|
case 6:
|
|
case 7:
|
|
return m_input.GetBits (count - 1) + (1 << (count - 1));
|
|
|
|
case 8: return -1;
|
|
case 9: return -2;
|
|
|
|
default:
|
|
return m_input.GetBits (count - 9) - (2 << (count - 9));
|
|
|
|
case -1: throw new EndOfStreamException();
|
|
}
|
|
}
|
|
|
|
bool _disposed = false;
|
|
public void Dispose ()
|
|
{
|
|
if (!_disposed)
|
|
{
|
|
m_input.Dispose();
|
|
_disposed = true;
|
|
}
|
|
}
|
|
|
|
readonly static byte[] ZigzagOrder = {
|
|
0x00, 0x01, 0x08, 0x10, 0x09, 0x02, 0x03, 0x0A,
|
|
0x11, 0x18, 0x20, 0x19, 0x12, 0x0B, 0x04, 0x05,
|
|
0x0C, 0x13, 0x1A, 0x21, 0x28, 0x30, 0x29, 0x22,
|
|
0x1B, 0x14, 0x0D, 0x06, 0x07, 0x0E, 0x15, 0x1C,
|
|
0x23, 0x2A, 0x31, 0x38, 0x39, 0x32, 0x2B, 0x24,
|
|
0x1D, 0x16, 0x0F, 0x17, 0x1E, 0x25, 0x2C, 0x33,
|
|
0x3A, 0x3B, 0x34, 0x2D, 0x26, 0x1F, 0x27, 0x2E,
|
|
0x35, 0x3C, 0x3D, 0x36, 0x2F, 0x37, 0x3E, 0x3F,
|
|
};
|
|
}
|
|
}
|