mirror of
https://github.com/crskycode/GARbro.git
synced 2024-12-29 22:34:13 +08:00
325 lines
13 KiB
C#
325 lines
13 KiB
C#
//! \file ImageGRX.cs
|
|
//! \date Wed Jul 15 00:59:44 2015
|
|
//! \brief U-Me Soft image format.
|
|
//
|
|
// Copyright (C) 2015-2016 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.UMeSoft
|
|
{
|
|
internal class GrxMetaData : ImageMetaData
|
|
{
|
|
public bool IsPacked;
|
|
public bool HasAlpha;
|
|
public int AlphaOffset;
|
|
}
|
|
|
|
[Export(typeof(ImageFormat))]
|
|
public class GrxFormat : ImageFormat
|
|
{
|
|
public override string Tag { get { return "GRX"; } }
|
|
public override string Description { get { return "U-Me Soft image format"; } }
|
|
public override uint Signature { get { return 0x1A585247; } } // 'GRX'
|
|
|
|
public override ImageMetaData ReadMetaData (Stream stream)
|
|
{
|
|
byte[] header = new byte[0x10];
|
|
if (header.Length != stream.Read (header, 0, header.Length))
|
|
return null;
|
|
return new GrxMetaData
|
|
{
|
|
Width = LittleEndian.ToUInt16 (header, 8),
|
|
Height = LittleEndian.ToUInt16 (header, 10),
|
|
BPP = LittleEndian.ToUInt16 (header, 6),
|
|
IsPacked = 0 != header[4],
|
|
HasAlpha = 0 != header[5],
|
|
AlphaOffset = LittleEndian.ToInt32 (header, 12),
|
|
};
|
|
}
|
|
|
|
public override ImageData Read (Stream stream, ImageMetaData info)
|
|
{
|
|
var reader = new Reader (stream, (GrxMetaData)info);
|
|
reader.Unpack();
|
|
return ImageData.Create (info, reader.Format, null, reader.Data, reader.Stride);
|
|
}
|
|
|
|
public override void Write (Stream file, ImageData image)
|
|
{
|
|
throw new System.NotImplementedException ("GrxFormat.Write not implemented");
|
|
}
|
|
|
|
internal class Reader
|
|
{
|
|
Stream m_input;
|
|
byte[] m_output;
|
|
GrxMetaData m_info;
|
|
int m_pixel_size;
|
|
int m_aligned_width;
|
|
|
|
public byte[] Data { get { return m_output; } }
|
|
public PixelFormat Format { get; private set; }
|
|
public int Stride { get; private set; }
|
|
|
|
public Reader (Stream input, GrxMetaData info)
|
|
{
|
|
m_input = input;
|
|
m_info = info;
|
|
m_pixel_size = m_info.BPP / 8;
|
|
switch (m_info.BPP)
|
|
{
|
|
case 32:
|
|
Format = PixelFormats.Bgr32;
|
|
break;
|
|
case 24:
|
|
Format = PixelFormats.Bgr32;
|
|
m_pixel_size = 4;
|
|
break;
|
|
case 16:
|
|
Format = PixelFormats.Bgr565;
|
|
break;
|
|
case 8:
|
|
Format = PixelFormats.Gray8;
|
|
break;
|
|
default:
|
|
throw new InvalidFormatException();
|
|
}
|
|
m_aligned_width = ((int)m_info.Width + 3) & ~3;
|
|
Stride = m_aligned_width * m_pixel_size;
|
|
m_output = new byte[Stride * (int)info.Height];
|
|
}
|
|
|
|
public void Unpack ()
|
|
{
|
|
m_input.Position = 0x10;
|
|
if (!m_info.IsPacked)
|
|
m_input.Read (m_output, 0, m_output.Length);
|
|
else
|
|
UnpackColorData (m_output, m_info.BPP/8, m_pixel_size);
|
|
|
|
if (m_info.HasAlpha && m_info.AlphaOffset > 0)
|
|
{
|
|
m_input.Position = 0x10 + m_info.AlphaOffset;
|
|
var alpha = new byte[m_aligned_width * (int)m_info.Height];
|
|
UnpackColorData (alpha, 1, 1);
|
|
if (m_info.BPP >= 24)
|
|
{
|
|
int dst = 3;
|
|
int src = 0;
|
|
for (uint y = 0; y < m_info.Height; ++y)
|
|
{
|
|
for (int x = 0; x < m_aligned_width; ++x)
|
|
{
|
|
m_output[dst] = alpha[src++];
|
|
dst += 4;
|
|
}
|
|
}
|
|
Format = PixelFormats.Bgra32;
|
|
}
|
|
else if (16 == m_info.BPP)
|
|
ApplyAlpha16bpp (alpha);
|
|
}
|
|
}
|
|
|
|
void ApplyAlpha16bpp (byte[] alpha)
|
|
{
|
|
int dst_stride = m_aligned_width * 4;
|
|
var pixels = new byte[dst_stride * (int)m_info.Height];
|
|
int src = 0;
|
|
int dst = 0;
|
|
int gap = dst_stride - (int)m_info.Width * 4;
|
|
int a = 0;
|
|
for (uint y = 0; y < m_info.Height; ++y)
|
|
{
|
|
for (int x = 0; x < m_info.Width; ++x)
|
|
{
|
|
int pixel = LittleEndian.ToUInt16 (m_output, src + x*2);
|
|
pixels[dst++] = (byte)((pixel & 0x001F) * 0xFF / 0x001F);
|
|
pixels[dst++] = (byte)((pixel & 0x07E0) * 0xFF / 0x07E0);
|
|
pixels[dst++] = (byte)((pixel & 0xF800) * 0xFF / 0xF800);
|
|
pixels[dst++] = alpha[a+x];
|
|
}
|
|
dst += gap;
|
|
src += Stride;
|
|
a += m_aligned_width;
|
|
}
|
|
m_pixel_size = 4;
|
|
Stride = dst_stride;
|
|
m_output = pixels;
|
|
Format = PixelFormats.Bgra32;
|
|
}
|
|
|
|
static readonly int[,] OffsetTable = new int[2,16] {
|
|
{ 0, -1, -1, -1, 0, -2, -2, -2, 0, -4, -4, -4, -2, -2, -4, -4 },
|
|
{ 0, 0, -1, 1, -2, 0, -2, 2, -4, 0, -4, 4, -4, 4, -2, 2 },
|
|
};
|
|
|
|
void UnpackColorData (byte[] output, int src_pixel_size, int dst_pixel_size)
|
|
{
|
|
int[] offset_step = new int[16];
|
|
|
|
int stride = ((int)m_info.Width * dst_pixel_size + 3) & ~3;
|
|
int delta = stride - (int)m_info.Width * dst_pixel_size;
|
|
for (int i = 0; i < 16; i++)
|
|
offset_step[i] = OffsetTable[0,i] * stride + OffsetTable[1,i] * dst_pixel_size;
|
|
|
|
int dst = 0;
|
|
for (uint y = 0; y < m_info.Height; ++y)
|
|
{
|
|
int w = (int)m_info.Width;
|
|
while (w > 0)
|
|
{
|
|
int flag = m_input.ReadByte();
|
|
if (-1 == flag)
|
|
throw new InvalidFormatException();
|
|
|
|
int count = flag & 3;
|
|
if (0 != (flag & 4))
|
|
{
|
|
count |= m_input.ReadByte() << 2;
|
|
}
|
|
w -= ++count;
|
|
if (0 == (flag & 0xF0))
|
|
{
|
|
if (0 != (flag & 8))
|
|
{
|
|
if (src_pixel_size == dst_pixel_size)
|
|
{
|
|
count *= dst_pixel_size;
|
|
if (count != m_input.Read (output, dst, count))
|
|
throw new InvalidFormatException();
|
|
dst += count;
|
|
}
|
|
else
|
|
{
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
if (src_pixel_size != m_input.Read (output, dst, src_pixel_size))
|
|
throw new InvalidFormatException();
|
|
dst += dst_pixel_size;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (src_pixel_size != m_input.Read (output, dst, src_pixel_size))
|
|
throw new InvalidFormatException();
|
|
--count;
|
|
dst += dst_pixel_size;
|
|
for (int i = count*dst_pixel_size; i > 0; i--)
|
|
{
|
|
output[dst] = output[dst-dst_pixel_size];
|
|
dst++;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int src = dst + offset_step[flag >> 4];
|
|
if (0 == (flag & 8))
|
|
{
|
|
for (int i = 0; i < count; i++)
|
|
{
|
|
for (int j = 0; j < src_pixel_size; ++j)
|
|
output[dst+j] = output[src+j];
|
|
dst += dst_pixel_size;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
count *= dst_pixel_size;
|
|
Binary.CopyOverlapped (output, src, dst, count);
|
|
dst += count;
|
|
}
|
|
}
|
|
}
|
|
dst += delta;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// SGX header format
|
|
// signature 32bit
|
|
// GRX offset 32bit
|
|
// number of frames 32bit
|
|
// ... frames info (* number of frames)
|
|
// x coordinate 16bit
|
|
// y coordinate 16bit
|
|
// frame width 16bit
|
|
// frame height 16bit
|
|
// transparency color 32bit
|
|
|
|
internal class SgxMetaData : ImageMetaData
|
|
{
|
|
public int GrxOffset;
|
|
public ImageMetaData GrxInfo;
|
|
}
|
|
|
|
[Export(typeof(ImageFormat))]
|
|
public class SgxFormat : GrxFormat
|
|
{
|
|
public override string Tag { get { return "SGX"; } }
|
|
public override string Description { get { return "U-Me Soft multi-frame image format"; } }
|
|
public override uint Signature { get { return 0x1A584753; } } // 'SGX'
|
|
|
|
public SgxFormat ()
|
|
{
|
|
Extensions = new string[] { "grx" };
|
|
}
|
|
|
|
public override ImageMetaData ReadMetaData (Stream stream)
|
|
{
|
|
using (var reader = new ArcView.Reader (stream))
|
|
{
|
|
stream.Seek (4, SeekOrigin.Current);
|
|
int offset = reader.ReadInt32();
|
|
if (offset <= 8)
|
|
return null;
|
|
stream.Position = offset;
|
|
uint signature = reader.ReadUInt32();
|
|
if (signature != base.Signature)
|
|
return null;
|
|
stream.Seek (-4, SeekOrigin.Current);
|
|
var info = base.ReadMetaData (stream) as GrxMetaData;
|
|
if (null == info)
|
|
return null;
|
|
if (info.AlphaOffset > 0)
|
|
info.AlphaOffset += offset;
|
|
return new SgxMetaData { GrxOffset = offset, GrxInfo = info };
|
|
}
|
|
}
|
|
|
|
public override ImageData Read (Stream stream, ImageMetaData info)
|
|
{
|
|
var meta = (SgxMetaData)info;
|
|
stream.Position = meta.GrxOffset;
|
|
return base.Read (stream, meta.GrxInfo);
|
|
}
|
|
}
|
|
}
|