private void performSteganographyPerVertex(Vertex v, ByteWriteHelper writeHelper)
{
if (!writeHelper.HasData())
{
return;
}
v.X = performSteganographyPerFloat(writeHelper.GetAndMoveCurrentBit(), v.X);
if (!writeHelper.HasData())
{
return;
}
v.Y = performSteganographyPerFloat(writeHelper.GetAndMoveCurrentBit(), v.Y);
if (!writeHelper.HasData())
{
return;
}
v.Z = performSteganographyPerFloat(writeHelper.GetAndMoveCurrentBit(), v.Z);
}
private bool performStenography(byte[] data)
{
ByteWriteHelper writeHelper = new ByteWriteHelper(checkBox1.Checked, textBox4.Text);
writeHelper.AppendData(new byte[] { 0x77, 0 }); //Magic byte, version
writeHelper.AppendData(BitConverter.GetBytes(data.Length));
writeHelper.AppendData(data);
writeHelper.FinalizeData();
List <Triangle> triangles = new List <Triangle>();
Dictionary <Vertex, Vertex> knownVertices = new Dictionary <Vertex, Vertex>();
foreach (Triangle tri in reader.ReadFromFile(PathRead))
{
if (writeHelper.HasData())
{
if (!(knownVertices.ContainsKey(tri.V1)))
{
Vertex tmp = new Vertex(tri.V1);
performSteganographyPerVertex(tri.V1, writeHelper);
knownVertices.Add(tmp, new Vertex(tri.V1));
}
if (!(knownVertices.ContainsKey(tri.V2)))
{
Vertex tmp = new Vertex(tri.V2);
performSteganographyPerVertex(tri.V2, writeHelper);
knownVertices.Add(tmp, new Vertex(tri.V2));
}
if (!(knownVertices.ContainsKey(tri.V3)))
{
Vertex tmp = new Vertex(tri.V3);
performSteganographyPerVertex(tri.V3, writeHelper);
knownVertices.Add(tmp, new Vertex(tri.V3));
}
}
if (knownVertices.ContainsKey(tri.V1))
{
tri.V1.Set(knownVertices[tri.V1]);
}
if (knownVertices.ContainsKey(tri.V2))
{
tri.V2.Set(knownVertices[tri.V2]);
}
if (knownVertices.ContainsKey(tri.V3))
{
tri.V3.Set(knownVertices[tri.V3]);
}
triangles.Add(tri);
}
if (writeHelper.HasData())
{
MessageBox.Show("The file is to small for the data amount!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
writer.WriteToFile(PathWrite, triangles);
return(true);
}
return(false);
}
