/// Leaves stream in indeterminate state; caller should Close() upon return.
public static bool ReadMemory(Stream stream, Guid[] brushList, bool bAdditive, out bool isLegacy, out Dictionary <int, int> oldGroupToNewGroup)
{
bool allowFastPath = BitConverter.IsLittleEndian;
// Buffering speeds up fast path ~1.4x, slow path ~2.3x
var bufferedStream = new BufferedStream(stream, 4096);
// var stopwatch = new System.Diagnostics.Stopwatch();
// stopwatch.Start();
isLegacy = false;
SketchMemoryScript.m_Instance.ClearRedo();
if (!bAdditive)
{
//clean up old draw'ring
SketchMemoryScript.m_Instance.ClearMemory();
}
#if (UNITY_EDITOR || EXPERIMENTAL_ENABLED)
if (Config.IsExperimental)
{
if (App.Config.m_ReplaceBrushesOnLoad)
{
brushList = brushList.Select(guid => App.Config.GetReplacementBrush(guid)).ToArray();
}
}
#endif
oldGroupToNewGroup = new Dictionary <int, int>();
var strokes = GetStrokes(bufferedStream, brushList, allowFastPath);
if (strokes == null)
{
return(false);
}
// Check that the strokes are in timestamp order.
uint headMs = uint.MinValue;
foreach (var stroke in strokes)
{
if (stroke.HeadTimestampMs < headMs)
{
strokes.Sort((a, b) => a.HeadTimestampMs.CompareTo(b.HeadTimestampMs));
ControllerConsoleScript.m_Instance.AddNewLine("Bad timing data detected. Please re-save.");
Debug.LogAssertion("Unsorted timing data in sketch detected. Strokes re-sorted.");
break;
}
headMs = stroke.HeadTimestampMs;
}
QualityControls.m_Instance.AutoAdjustSimplifierLevel(strokes, brushList);
foreach (var stroke in strokes)
{
// Deserialized strokes are expected in timestamp order, yielding aggregate complexity
// of O(N) to populate the by-time linked list.
SketchMemoryScript.m_Instance.MemoryListAdd(stroke);
}
// stopwatch.Stop();
// Debug.LogFormat("Reading took {0}", stopwatch.Elapsed);
GroupManager.MoveStrokesToNewGroups(strokes, oldGroupToNewGroup);
return(true);
}