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added CHERRY PACK 3 image variant.

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This commit is contained in:
morkt 2015-11-22 06:28:04 +04:00
parent 5e55256d8e
commit 383439403e
1 changed files with 56 additions and 10 deletions
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58
ArcFormats/Cherry/ImageGRP.cs
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@ -38,6 +38,8 @@ namespace GameRes.Formats.Cherry
public int PackedSize;
public int UnpackedSize;
public int Offset;
public int HeaderSize;
public bool AlphaChannel;
}
[Export(typeof(ImageFormat))]
@ -74,14 +76,14 @@ namespace GameRes.Formats.Cherry
PackedSize = packed_size,
UnpackedSize = unpacked_size,
Offset = LittleEndian.ToInt32 (header, 0x14),
HeaderSize = 0x18,
AlphaChannel = false,
};
}
public override ImageData Read (Stream stream, ImageMetaData info)
{
var meta = info as GrpMetaData;
if (null == meta)
throw new ArgumentException ("GrpFormat.Read should be supplied with GrpMetaData", "info");
var meta = (GrpMetaData)info;
var reader = new GrpReader (stream, meta);
return reader.CreateImage();
}
@ -92,6 +94,43 @@ namespace GameRes.Formats.Cherry
}
}
[Export(typeof(ImageFormat))]
public class Grp3Format : GrpFormat
{
public override string Tag { get { return "GRP/CHERRY3"; } }
public override string Description { get { return "Cherry Soft compressed image format"; } }
public override uint Signature { get { return 0; } }
public override ImageMetaData ReadMetaData (Stream stream)
{
var header = new byte[0x28];
if (header.Length != stream.Read (header, 0, header.Length))
return null;
if (0xFFFF != LittleEndian.ToInt32 (header, 8))
return null;
int packed_size = LittleEndian.ToInt32 (header, 0);
int unpacked_size = LittleEndian.ToInt32 (header, 4);
uint width = LittleEndian.ToUInt32 (header, 0x10);
uint height = LittleEndian.ToUInt32 (header, 0x14);
int bpp = LittleEndian.ToInt32 (header, 0x18);
if (0 == width || 0 == height || width > 0x7fff || height > 0x7fff
|| (bpp != 32 && bpp != 24 && bpp != 8)
|| unpacked_size <= 0 || packed_size < 0)
return null;
return new GrpMetaData
{
Width = width,
Height = height,
BPP = bpp,
PackedSize = packed_size,
UnpackedSize = unpacked_size,
Offset = 0xFFFF,
HeaderSize = 0x28,
AlphaChannel = LittleEndian.ToInt32 (header, 0x24) != 0,
};
}
}
internal class GrpReader
{
GrpMetaData m_info;
@ -111,6 +150,8 @@ namespace GameRes.Formats.Cherry
Format = PixelFormats.Indexed8;
else if (24 == info.BPP)
Format = PixelFormats.Bgr24;
else if (32 == info.BPP)
Format = m_info.AlphaChannel ? PixelFormats.Bgra32 : PixelFormats.Bgr32;
else
throw new NotSupportedException ("Not supported GRP image depth");
m_stride = (int)m_info.Width*((Format.BitsPerPixel+7)/8);
@ -118,7 +159,7 @@ namespace GameRes.Formats.Cherry
public ImageData CreateImage ()
{
m_input.Position = 0x18;
m_input.Position = m_info.HeaderSize;
int data_size = m_info.UnpackedSize;
if (m_info.PackedSize != 0)
data_size = m_info.PackedSize;
@ -129,7 +170,7 @@ namespace GameRes.Formats.Cherry
24 == m_info.BPP && 0x018 == m_info.Offset)
return ReadV1();
else if (true) // FIXME
return ReadV3();
return ReadV3 (0xFFFF != m_info.Offset);
else
throw new InvalidFormatException();
}
@ -206,7 +247,9 @@ namespace GameRes.Formats.Cherry
}
}
private ImageData ReadV3 () // Exile ~Blood Royal 2~
// Exile ~Blood Royal 2~ : flipped == true
// Gakuen ~Nerawareta Chitai~ : flipped == false
private ImageData ReadV3 (bool flipped)
{
using (var lzs = new LzssStream (m_input, LzssMode.Decompress, true))
{
@ -221,7 +264,10 @@ namespace GameRes.Formats.Cherry
if (m_image_data.Length != lzs.Read (m_image_data, 0, m_image_data.Length))
throw new InvalidFormatException();
if (flipped)
return ImageData.CreateFlipped (m_info, Format, Palette, m_image_data, m_stride);
else
return ImageData.Create (m_info, Format, Palette, m_image_data, m_stride);
}
}