/// <summary>
/// MCDeclElementVertexBufferの複製を作る。
/// </summary>
/// <param name="pImmediateContext">ID3D11DeviceContextポインタ</param>
/// <param name="buffer">複製された buffer を格納する</param>
/// <returns>0 の場合、buffer に新たにMCDeclElementVertexBufferが作られる</returns>
public int Clone(out MCDeclElementVertexBuffer buffer)
{
int hr = 0;
DataBox box1, box2;
buffer = new MCDeclElementVertexBuffer();
if (buffer == null)
{
return(-1);
}
// 頂点バッファ リソースの記述を取得する。
BufferDescription VertexBD = m_vertexBuffer.Description;
// 頂点バッファ作成
hr = buffer.CreateVertexBuffer(
m_device,
m_preVertexSize,
m_vetexNum
);
if (hr == 0)
{
buffer = null;
return(hr);
}
LockVertexBuffer(m_device.ImmediateContext, out box1, MapMode.Read);
{
buffer.LockVertexBuffer(m_device.ImmediateContext, out box2, MapMode.WriteDiscard);
{
unsafe
{
var src = (byte *)box1.DataPointer;
var dest = (byte *)box2.DataPointer;
for (int i = 0; i < m_vetexNum * m_preVertexSize; i++)
{
dest[i] = src[i];
}
}
}
buffer.UnlockVertexBuffer(m_device.ImmediateContext);
}
UnlockVertexBuffer(m_device.ImmediateContext);
buffer.m_isMemoryShare = false;
buffer.m_offset = m_offset;
buffer.m_vetexNum = m_vetexNum;
buffer.m_preVertexSize = m_preVertexSize;
buffer.m_vaVertexElement = m_vaVertexElement;
return(hr);
}
