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(MAI4): try default decompression method, fall back to the second one on failure.

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This commit is contained in:
morkt
2017-11-24 01:28:43 +04:00
parent 98288fdf1c
commit 74874e44cf
1 changed files with 18 additions and 3 deletions
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21
ArcFormats/ShiinaRio/ImageMI4.cs
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@@ -53,7 +53,14 @@ namespace GameRes.Formats.ShiinaRio
public override ImageData Read (IBinaryStream stream, ImageMetaData info) public override ImageData Read (IBinaryStream stream, ImageMetaData info)
{ {
var reader = new Reader (stream, (int)info.Width, (int)info.Height); var reader = new Reader (stream, (int)info.Width, (int)info.Height);
reader.Unpack(); try
{
reader.Unpack (MaiVersion.First);
}
catch
{
reader.Unpack (MaiVersion.Second);
}
return ImageData.Create (info, PixelFormats.Bgr24, null, reader.Data, reader.Stride); return ImageData.Create (info, PixelFormats.Bgr24, null, reader.Data, reader.Stride);
} }
@@ -62,6 +69,11 @@ namespace GameRes.Formats.ShiinaRio
throw new System.NotImplementedException ("Mi4Format.Write not implemented"); throw new System.NotImplementedException ("Mi4Format.Write not implemented");
} }
internal enum MaiVersion
{
First, Second
}
internal sealed class Reader internal sealed class Reader
{ {
IBinaryStream m_input; IBinaryStream m_input;
@@ -78,12 +90,15 @@ namespace GameRes.Formats.ShiinaRio
m_output = new byte[m_stride*height]; m_output = new byte[m_stride*height];
} }
public void Unpack () public void Unpack (MaiVersion version = MaiVersion.First)
{ {
m_input.Position = 0x10; m_input.Position = 0x10;
m_bit_count = 0; m_bit_count = 0;
LoadBits(); LoadBits();
UnpackV2(); if (MaiVersion.First == version)
UnpackV1();
else
UnpackV2();
} }
int m_bit_count; int m_bit_count;