protected override void Convert(String sourceName, ArraySegment <Byte> sourceData, String target)
{
using (MemoryStream ms = new MemoryStream(sourceData.Array, sourceData.Offset, sourceData.Count))
using (FileStream output = File.Create(target))
{
UnsafeList <Byte> result = _reader.Read(sourceName, ms);
ArraySegment <Byte> buff = result.GetBuffer();
output.Write(buff.Array, buff.Offset, buff.Count);
}
}
private UnsafeList <Byte> Read()
{
_reader = new TiffReader(_tiff);
(Int32 animationType, AMAnimation[] animations, AMFrame[] frames) = GetMetadata(_tiff);
try
{
ReadPages();
_header.AnimationType = animationType;
_header.AnimationCount = animations.Length;
_header.FrameCount = frames.Length;
_header.PaletteCount = _palettes.Count;
_header.ImageHeaderCount = _images.Count;
_header.ImageContentSize = (Int32)_content.Length;
_header.ImageSegmentCount = _segments.Count;
_header.ImageLineCount = _lines.Count;
unsafe
{
_result.SetPosition(sizeof(AMHeader));
_header.AnimationOffset = CurrentPosition;
_result.WriteStructs(animations);
_header.FrameOffset = CurrentPosition;
_result.WriteStructs(frames);
_header.PaletteOffset = CurrentPosition;
_result.WriteStructs(_palettes.GetBuffer());
_header.ImageHeaderOffset = CurrentPosition;
_result.WriteStructs(_images.GetBuffer());
_header.ImageContentOffset = CurrentPosition;
_content.SetPosition(0);
_content.CopyTo(_result);
_header.ImageSegmentOffset = CurrentPosition;
_result.WriteStructs(_segments.GetBuffer());
_header.ImageLineOffset = CurrentPosition;
_result.WriteStructs(_lines.GetBuffer());
_result.SetPosition(0);
_result.WriteStruct(_header);
}
if (!_result.TryGetBuffer(out var result))
{
throw new NotSupportedException();
}
return(new UnsafeList <Byte>(result));
}
finally
{
_images.Clear();
_paletteMaps.Clear();
_palettes.Clear();
_segments.Clear();
_lines.Clear();
_contentOffset = 0;
_content.SetLength(0);
_result.SetLength(0);
}
}