public VertexBuffer GetVertexBuffer(DrawState state)
{
if (_vertexBuffer == null)
{
int size = 32;
if (_buffer.CountKnown)
{
size = _buffer.Count;
}
if (size == 0)
{
throw new ArgumentException(string.Format("Vertices<{0}> data size is zero", typeof(TVertexType).Name));
}
_vertexBuffer = new VertexBuffer(Context, _buffer.Stride * size, Usage.WriteOnly, VertexFormat.None, Pool.Managed);
if ((_usage & Usage.Dynamic) != Usage.Dynamic)
{
_buffer.ClearBuffer();
}
}
if (_buffer.IsDirty)
{
_buffer.UpdateDirtyRegions(state, _vertexBuffer);
}
return(_vertexBuffer);
}
VertexBuffer IDeviceVertexBuffer.GetVertexBuffer(DrawState state)
{
GraphicsDevice device = state.graphics;
if (vb == null)
{
int size = 32;
if (buffer.CountKnown)
{
size = buffer.Count;
}
if (size == 0)
{
throw new ArgumentException(string.Format("Vertices<{0}> data size is zero", typeof(VertexType).Name));
}
if ((usage & ResourceUsage.Dynamic) == ResourceUsage.Dynamic)
{
vb = new DynamicVertexBuffer(device, buffer.Stride * size, Usage);
}
else
{
vb = new VertexBuffer(device, buffer.Stride * size, Usage);
}
if ((ResourceUsage & ResourceUsage.DynamicSequential) != ResourceUsage.DynamicSequential)
{
int written = buffer.WriteBuffer(state, 0, size * buffer.Stride, vb, this);
if (written < buffer.Count)
{
vb.Dispose();
if ((usage & ResourceUsage.Dynamic) == ResourceUsage.Dynamic)
{
vb = new DynamicVertexBuffer(device, buffer.Stride * buffer.Count, Usage);
}
else
{
vb = new VertexBuffer(device, buffer.Stride * buffer.Count, Usage);
}
buffer.WriteBuffer(state, 0, buffer.Count * buffer.Stride, vb, this);
}
this.buffer.ClearDirtyRange();
}
if ((usage & ResourceUsage.Dynamic) != ResourceUsage.Dynamic)
{
buffer.ClearBuffer();
}
}
if ((usage & ResourceUsage.Dynamic) == ResourceUsage.Dynamic &&
vb != null && ((DynamicVertexBuffer)vb).IsContentLost)
{
SetDirty();
}
if (this.buffer.IsDirty)
{
this.buffer.UpdateDirtyRegions(state, this.vb, this);
}
return(vb);
}
IndexBuffer IDeviceIndexBuffer.GetIndexBuffer(DrawState state)
{
GraphicsDevice device = state.graphics;
ValidateDisposed();
if (this.ib == null)
{
int size = 32;
if (buffer.CountKnown)
{
size = buffer.Count;
}
Type indexType = BufferIndexType;
int instanceCount = 1;
#if XBOX360
instanceCount = Math.Max(1, this.buffer.instancingCount);
#endif
if (size == 0)
{
throw new ArgumentException(string.Format("Indices<{0}> data size is zero", typeof(IndexType).Name));
}
if ((usage & ResourceUsage.Dynamic) == ResourceUsage.Dynamic)
{
ib = new DynamicIndexBuffer(device, indexType, size * instanceCount, Usage);
}
else
{
ib = new IndexBuffer(device, indexType, size * instanceCount, Usage);
}
if ((ResourceUsage & ResourceUsage.DynamicSequential) != ResourceUsage.DynamicSequential)
{
int written = buffer.WriteBuffer(state, 0, size * buffer.Stride, ib, this);
if (written < buffer.Count)
{
ib.Dispose();
if ((usage & ResourceUsage.Dynamic) == ResourceUsage.Dynamic)
{
ib = new DynamicIndexBuffer(device, indexType, buffer.Count * instanceCount, Usage);
}
else
{
ib = new IndexBuffer(device, indexType, buffer.Count * instanceCount, Usage);
}
buffer.WriteBuffer(state, 0, buffer.Count * buffer.Stride, ib, this);
}
this.buffer.ClearDirtyRange();
}
if ((usage & ResourceUsage.Dynamic) != ResourceUsage.Dynamic)
{
buffer.ClearBuffer();
}
}
if ((usage & ResourceUsage.Dynamic) == ResourceUsage.Dynamic &&
ib != null && ((DynamicIndexBuffer)ib).IsContentLost)
{
SetDirty();
}
if (this.buffer.IsDirty)
{
this.buffer.UpdateDirtyRegions(state, this.ib, this);
}
return(ib);
}