//[Conditional("DEBUG")]
static void CheckBatchInformationsConsistency <T>(params BatchInformation[] ExtraBatchInformation)
where T : IVertexType
{
System.Diagnostics.Debug.Assert(ExtraBatchInformation.Count() > 2);
for (int i = 0; i < ExtraBatchInformation.Count(); i++)
{
System.Diagnostics.Debug.Assert(ExtraBatchInformation[i].BatchType == BatchType.INDEXED);
System.Diagnostics.Debug.Assert(ExtraBatchInformation[i].VertexDeclaration.GetType() == typeof(T));
}
}
/// <summary>
/// Merges some indexedbatchinformation objects.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="GraphicFactory">The graphic factory.</param>
/// <param name="IndexElementSize">Size of the index element.</param>
/// <param name="ExtraBatchInformation">The extra batch information.</param>
public static void MergeIndexedBatchInformation <T>(GraphicFactory GraphicFactory, IndexElementSize IndexElementSize, params BatchInformation[] ExtraBatchInformation)
where T : struct, IVertexType
{
CheckBatchInformationsConsistency <T>(ExtraBatchInformation);
int NumVerts = 0;
int NumIndexes = 0;
for (int i = 0; i < ExtraBatchInformation.Count(); i++)
{
NumVerts += ExtraBatchInformation[i].VertexBuffer.VertexCount;
NumIndexes += ExtraBatchInformation[i].IndexBuffer.IndexCount;
}
//complete
int[] completeindex = new int[NumVerts];
T[] completevertex = new T[NumIndexes];
VertexDeclaration VertexDeclaration = ExtraBatchInformation[0].VertexDeclaration;
//mandatory
int[] indexbuffer = new int[ExtraBatchInformation[0].IndexBuffer.IndexCount];
switch (IndexElementSize)
{
case IndexElementSize.SixteenBits:
short[] tempindex = new short[ExtraBatchInformation[0].IndexBuffer.IndexCount];
ExtraBatchInformation[0].IndexBuffer.GetData <short>(tempindex);
for (int i = 0; i < tempindex.Count(); i++)
{
indexbuffer[i] = tempindex[i];
}
break;
case IndexElementSize.ThirtyTwoBits:
ExtraBatchInformation[0].IndexBuffer.GetData <int>(indexbuffer);
break;
default:
break;
}
//mandatory
T[] vertexBuffer = new T[ExtraBatchInformation[0].VertexBuffer.VertexCount];
ExtraBatchInformation[0].VertexBuffer.GetData <T>(vertexBuffer);
ExtraBatchInformation[0].VertexBuffer.Dispose();
ExtraBatchInformation[0].IndexBuffer.Dispose();
int VertexOffset = 0;
int IndexOffset = 0;
for (int i = 1; i < ExtraBatchInformation.Count(); i++)
{
//extra vertex
T[] ExtravertexBuffer = new T[ExtraBatchInformation[i].VertexBuffer.VertexCount];
ExtraBatchInformation[i].VertexBuffer.GetData <T>(vertexBuffer);
//extra index
int[] ExtraindexBuffer = new int[ExtraBatchInformation[i].IndexBuffer.IndexCount];
switch (IndexElementSize)
{
case IndexElementSize.SixteenBits:
short[] tempindex = new short[ExtraBatchInformation[0].IndexBuffer.IndexCount];
ExtraBatchInformation[0].IndexBuffer.GetData <short>(tempindex);
for (int q = 0; q < ExtraindexBuffer.Count(); q++)
{
ExtraindexBuffer[q] = tempindex[q];
}
break;
case IndexElementSize.ThirtyTwoBits:
ExtraBatchInformation[i].IndexBuffer.GetData <int>(ExtraindexBuffer);
break;
default:
break;
}
for (int v = 0; v < ExtraBatchInformation[i].VertexBuffer.VertexCount; v++)
{
completevertex[VertexOffset + v] = ExtravertexBuffer[v];
}
for (int j = 0; j < ExtraBatchInformation[i].IndexBuffer.IndexCount; j++)
{
completeindex[IndexOffset + i] = ExtraindexBuffer[j] + VertexOffset;
}
ExtraBatchInformation[i].VertexBuffer.Dispose();
ExtraBatchInformation[i].IndexBuffer.Dispose();
ExtraBatchInformation[i].StartIndex = IndexOffset;
ExtraBatchInformation[i].StartVertex = VertexOffset;
VertexOffset += ExtravertexBuffer.Count();
IndexOffset += ExtraindexBuffer.Count();
}
IndexBuffer IndexBuffer = GraphicFactory.CreateIndexBuffer(IndexElementSize.ThirtyTwoBits, NumIndexes, BufferUsage.None);
VertexBuffer VertexBuffer = GraphicFactory.CreateVertexBuffer(VertexDeclaration, NumIndexes, BufferUsage.None);
for (int i = 0; i < ExtraBatchInformation.Count(); i++)
{
ExtraBatchInformation[i].IndexBuffer = IndexBuffer;
ExtraBatchInformation[i].VertexBuffer = VertexBuffer;
}
}
