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another variant of CPB TYP1 images.

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This commit is contained in:
morkt 2016-05-27 12:17:32 +04:00
parent 4479c1d417
commit 50cff74a56
1 changed files with 41 additions and 23 deletions
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56
ArcFormats/AZSys/ImageTYP1.cs
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@ -34,6 +34,8 @@ namespace GameRes.Formats.AZSys
internal class Typ1MetaData : CpbMetaData
{
public bool HasPalette;
public bool SeparateChannels;
public uint PackedSize;
}
[Export(typeof(ImageFormat))]
@ -55,14 +57,26 @@ namespace GameRes.Formats.AZSys
bool has_palette = stream.ReadByte() != 0;
using (var input = new ArcView.Reader (stream))
{
var info = new Typ1MetaData { BPP = bpp, HasPalette = has_palette };
var info = new Typ1MetaData { BPP = bpp };
info.Width = input.ReadUInt16();
info.Height = input.ReadUInt16();
input.ReadInt32();
uint packed_size = input.ReadUInt32();
uint palette_size = 8 == bpp ? 0x400u : 0u;
if (packed_size+palette_size+0xE == stream.Length)
{
info.SeparateChannels = false;
info.HasPalette = palette_size > 0;
info.PackedSize = packed_size;
}
else
{
info.SeparateChannels = true;
info.HasPalette = has_palette;
info.Channel[0] = input.ReadUInt32();
info.Channel[1] = input.ReadUInt32();
info.Channel[2] = input.ReadUInt32();
info.Channel[3] = input.ReadUInt32();
}
return info;
}
}
@ -84,11 +98,10 @@ namespace GameRes.Formats.AZSys
{
int m_width;
int m_height;
int m_bpp;
int m_pixel_size;
Stream m_input;
byte[] m_output;
uint[] m_channel;
Typ1MetaData m_info;
public PixelFormat Format { get; private set; }
public BitmapPalette Palette { get; private set; }
@ -98,24 +111,18 @@ namespace GameRes.Formats.AZSys
{
m_width = (int)info.Width;
m_height = (int)info.Height;
m_bpp = info.BPP;
m_pixel_size = 8 == m_bpp ? 1 : 4;
m_channel = info.Channel;
m_info = info;
m_pixel_size = 8 == m_info.BPP ? 1 : 4;
m_output = new byte[m_width * m_height * m_pixel_size];
if (8 == m_bpp)
Format = info.HasPalette ? PixelFormats.Indexed8 : PixelFormats.Gray8;
else if (24 == m_bpp)
if (8 == m_info.BPP)
Format = m_info.HasPalette ? PixelFormats.Indexed8 : PixelFormats.Gray8;
else if (24 == m_info.BPP)
Format = PixelFormats.Bgr32;
else if (32 == m_bpp)
else if (32 == m_info.BPP)
Format = PixelFormats.Bgra32;
else
throw new InvalidFormatException ("Invalid CPB color depth");
m_input = input;
if (info.HasPalette)
{
m_input.Position = 0x1E;
Palette = ReadPalette();
}
}
public BitmapPalette ReadPalette ()
@ -137,7 +144,18 @@ namespace GameRes.Formats.AZSys
public void Unpack ()
{
if (8 == m_bpp)
if (m_info.HasPalette)
{
m_input.Position = m_info.SeparateChannels ? 0x1E : 0x0E;
Palette = ReadPalette();
}
if (!m_info.SeparateChannels)
{
m_input.Position = m_info.HasPalette ? 0x40E : 0xE;
using (var z = new ZLibStream (m_input, CompressionMode.Decompress, true))
z.Read (m_output, 0, m_output.Length);
}
else if (8 == m_info.BPP)
UnpackIndexed();
else
UnpackRGB();
@ -162,7 +180,7 @@ namespace GameRes.Formats.AZSys
long start_pos = 0x1E;
for (int i = 0; i < 4; ++i)
{
if (0 == m_channel[StreamMap[i]])
if (0 == m_info.Channel[StreamMap[i]])
continue;
m_input.Position = start_pos + 4; // skip crc32
using (var input = new ZLibStream (m_input, CompressionMode.Decompress, true))
@ -175,7 +193,7 @@ namespace GameRes.Formats.AZSys
dst += m_pixel_size;
}
}
start_pos += m_channel[StreamMap[i]];
start_pos += m_info.Channel[StreamMap[i]];
}
}
}