private void CreateDevice()
{
if (m_device != null)
{
return;
}
var param = new D3DPRESENT_PARAMETERS
{
Windowed = 1,
Flags = ((short)D3DPRESENTFLAG.D3DPRESENTFLAG_VIDEO),
BackBufferFormat = D3DFORMAT.D3DFMT_X8R8G8B8,
SwapEffect = D3DSWAPEFFECT.D3DSWAPEFFECT_COPY
};
/* The COM pointer to our D3D Device */
IntPtr dev;
/* Windows Vista runs much more performant with the IDirect3DDevice9Ex */
if (IsVistaOrBetter)
{
m_d3dEx.CreateDeviceEx(0, D3DDEVTYPE.D3DDEVTYPE_HAL, m_hWnd,
CreateFlags.D3DCREATE_SOFTWARE_VERTEXPROCESSING | CreateFlags.D3DCREATE_MULTITHREADED,
ref param, IntPtr.Zero, out dev);
}
else/* Windows XP */
{
m_d3d.CreateDevice(0, D3DDEVTYPE.D3DDEVTYPE_HAL, m_hWnd,
CreateFlags.D3DCREATE_SOFTWARE_VERTEXPROCESSING | CreateFlags.D3DCREATE_MULTITHREADED,
ref param, out dev);
}
m_device = (IDirect3DDevice9)Marshal.GetObjectForIUnknown(dev);
Marshal.Release(dev);
}
private void CreateDevice()
{
if (m_device != null)
{
return;
}
var param = new D3DPRESENT_PARAMETERS
{
Windowed = 1,
Flags = ((short)D3DPRESENTFLAG.D3DPRESENTFLAG_VIDEO),
BackBufferFormat = D3DFORMAT.D3DFMT_X8R8G8B8,
SwapEffect = D3DSWAPEFFECT.D3DSWAPEFFECT_COPY
};
/* The COM pointer to our D3D Device */
IntPtr dev;
/* Windows Vista runs much more performant with the IDirect3DDevice9Ex */
int hr = 0;
if (m_d3dEx != null)
{
hr = m_d3dEx.CreateDeviceEx(0, D3DDEVTYPE.D3DDEVTYPE_HAL, m_hWnd,
CreateFlags.D3DCREATE_SOFTWARE_VERTEXPROCESSING | CreateFlags.D3DCREATE_MULTITHREADED,
ref param, IntPtr.Zero, out dev);
}
else/* Windows XP */
{
hr = m_d3d.CreateDevice(0, D3DDEVTYPE.D3DDEVTYPE_HAL, m_hWnd,
CreateFlags.D3DCREATE_SOFTWARE_VERTEXPROCESSING | CreateFlags.D3DCREATE_MULTITHREADED,
ref param, out dev);
}
if (dev == IntPtr.Zero)
{
throw new WPFMediaKitException($"Cannot create D3D device ({hr:X}). Do you have D3D acceleration enabled for your graphics card?");
}
m_device = (IDirect3DDevice9)Marshal.GetObjectForIUnknown(dev);
Marshal.Release(dev);
}