public override IEnumerable <Exception> Validate()
{
var exxx = base.Validate().ToList();
if (!_bufferView.HasValue)
{
exxx.Add(new EXCEPTION(this, $"BufferView index missing")); return(exxx);
}
if (_bufferView < 0 || _bufferView >= LogicalParent.LogicalBufferViews.Count)
{
exxx.Add(new EXCEPTION(this, $"BufferView index out of range"));
}
if (_count < 0)
{
exxx.Add(new EXCEPTION(this, $"Count is out of range"));
}
if (_byteOffset < 0)
{
exxx.Add(new EXCEPTION(this, $"ByteOffset is out of range"));
}
if (SourceBufferView.DeviceBufferTarget == BufferMode.ARRAY_BUFFER)
{
var len = Encoding.ByteLength() * Dimensions.DimCount();
if (len > 0 && (len & 3) != 0)
{
exxx.Add(new EXCEPTION(this, $"Expected length to be multiple of 4, found {len}"));
}
}
if (SourceBufferView.DeviceBufferTarget == BufferMode.ELEMENT_ARRAY_BUFFER)
{
var len = Encoding.ByteLength() * Dimensions.DimCount();
if (len != 1 && len != 2 && len != 4)
{
exxx.Add(new EXCEPTION(this, $"Expected length to be 1, 2 or 4, found {len}"));
}
}
// validate bounds
if (_min.Count != _max.Count)
{
exxx.Add(new EXCEPTION(this, "min and max length mismatch")); return(exxx);
}
for (int i = 0; i < _min.Count; ++i)
{
if (_min[i] > _max[i])
{
exxx.Add(new EXCEPTION(this, $"min[{i}] is larger than max[{i}]"));
}
}
return(exxx);
}
public ArraySegment <Byte> TryGetVertexBytes(int vertexIdx)
{
if (_sparse != null)
{
throw new InvalidOperationException("Can't be used on Acessors with Sparse Data");
}
var itemByteSz = Encoding.ByteLength() * Dimensions.DimCount();
var byteStride = Math.Max(itemByteSz, SourceBufferView.ByteStride);
var byteOffset = vertexIdx * byteStride;
return(SourceBufferView.Content.Slice(this.ByteOffset + (vertexIdx * byteStride), itemByteSz));
}
