/// <summary>
/// Ensures this structure contains valid data.
/// </summary>
/// <param name="font">The <see cref="TinyFont"/> containing this appendix.</param>
public override void Update(TinyFont font)
{
UpdateAssert(_setsData.Count <= ushort.MaxValue, "Too many metadata sets.");
UpdateAssert(_setsData.Count == _setsOffsets.ItemsCount, "Metadata set offset count mismatch.");
SortedDictionary <MetadataSetOffset, byte[]> sortedSets = new SortedDictionary <MetadataSetOffset, byte[]>();
for (int i = 0; i < _setsOffsets.ItemsCount; i++)
{
sortedSets.Add(_setsOffsets[i], _setsData[i]);
}
_setsOffsets.Clear();
_setsOffsets.AddRange(sortedSets.Keys);
_setsData.Clear();
_setsData.AddRange(sortedSets.Values);
int offset = 0;
for (int i = 0; i < _setsData.Count; i++)
{
UpdateAssert(offset <= ushort.MaxValue, "Too large metadata set.");
_setsOffsets[i].Offset = (ushort)offset;
offset += _setsData[i].Length;
}
_setsOffsets.Sentinel.Id = 0xFF;
_setsOffsets.Sentinel.Offset = offset;
}
/// <summary>
/// Ensures this structure contains valid data.
/// </summary>
/// <param name="font">Tiny Font containing this appendix.</param>
public override void Update(TinyFont font)
{
UpdateAssert(_features.ItemsCount <= ushort.MaxValue, "Too many features.");
UpdateAssert(_features.ItemsCount == _featureOffsets.ItemsCount, "Feature offset count mismatch.");
UpdateAssert(_parametersHeap == null || _parametersHeap.Length <= ushort.MaxValue, "The parameters heap is too large.");
_featureCount = (ushort)_features.ItemsCount;
_heapSize = (ushort)(_parametersHeap == null ? 0 : _parametersHeap.Length);
for (int i = 0; i < _features.ItemsCount; i++)
{
_features[i].Update();
}
_features.Sentinel.StateCount = 0;
_features.Sentinel.Rules.Clear();
_features.Sentinel.StateOffsets.Clear();
_features.Sentinel.StateOffsets.Sentinel = 0;
SortedDictionary <FeatureOffset, Feature> sortedFeatures = new SortedDictionary <FeatureOffset, Feature>();
for (int i = 0; i < _featureCount; i++)
{
sortedFeatures.Add(_featureOffsets[i], _features[i]);
}
_featureOffsets.Clear();
_featureOffsets.AddRange(sortedFeatures.Keys);
_features.Clear();
_features.AddRange(sortedFeatures.Values);
int offset = 0;
for (int i = 0; i < _features.Count; i++)
{
UpdateAssert(offset <= ushort.MaxValue, "Too large feature.");
_featureOffsets[i].Offset = (ushort)offset;
offset += _features[i].GetSize();
}
_featureOffsets.Sentinel.Tag = 0xFFFFFFFF;
}