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migration to IBinaryStream interface.

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This commit is contained in:
morkt
2016-10-15 09:34:46 +04:00
parent 0b96ef8f77
commit 503b734645
16 changed files with 264 additions and 332 deletions
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49
GameRes/ImageJPEG.cs
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@@ -46,12 +46,12 @@ namespace GameRes
{
Extensions = new string[] { "jpg", "jpeg" };
Signatures = new uint[] { 0xe0ffd8ffu, 0 };
Quality = 90;
Quality = 100;
}
public override ImageData Read (Stream file, ImageMetaData info)
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var decoder = new JpegBitmapDecoder (file,
var decoder = new JpegBitmapDecoder (file.AsStream,
BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
var frame = decoder.Frames[0];
frame.Freeze();
@@ -66,36 +66,33 @@ namespace GameRes
encoder.Save (file);
}
public override ImageMetaData ReadMetaData (Stream stream)
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
if (0xff != stream.ReadByte() || 0xd8 != stream.ReadByte())
if (0xFF != file.ReadByte() || 0xD8 != file.ReadByte())
return null;
using (var file = new ArcView.Reader (stream))
while (-1 != file.PeekByte())
{
while (-1 != file.PeekChar())
ushort marker = Binary.BigEndian (file.ReadUInt16());
if ((marker & 0xff00) != 0xff00)
break;
int length = Binary.BigEndian (file.ReadUInt16());
if ((marker & 0x00f0) == 0xc0 && marker != 0xffc4)
{
ushort marker = Binary.BigEndian (file.ReadUInt16());
if ((marker & 0xff00) != 0xff00)
if (length < 8)
break;
int length = Binary.BigEndian (file.ReadUInt16());
if ((marker & 0x00f0) == 0xc0 && marker != 0xffc4)
{
if (length < 8)
break;
int bits = file.ReadByte();
uint height = Binary.BigEndian (file.ReadUInt16());
uint width = Binary.BigEndian (file.ReadUInt16());
int components = file.ReadByte();
return new ImageMetaData {
Width = width,
Height = height,
BPP = bits * components,
};
}
file.BaseStream.Seek (length-2, SeekOrigin.Current);
int bits = file.ReadByte();
uint height = Binary.BigEndian (file.ReadUInt16());
uint width = Binary.BigEndian (file.ReadUInt16());
int components = file.ReadByte();
return new ImageMetaData {
Width = width,
Height = height,
BPP = bits * components,
};
}
return null;
file.Seek (length-2, SeekOrigin.Current);
}
return null;
}
}
}