internal static Rect ProjectBounds(
ref Matrix3D viewProjMatrix,
ref Rect3D originalBox)
{
D3DMATRIX viewProjFloatMatrix = CompositionResourceManager.Matrix3DToD3DMATRIX(viewProjMatrix);
MILRect3D originalBoxFloat = new MILRect3D(ref originalBox);
MilRectF outRect = new MilRectF();
HRESULT.Check(
MIL3DCalcProjected2DBounds(
ref viewProjFloatMatrix,
ref originalBoxFloat,
out outRect));
if (outRect.Left == outRect.Right ||
outRect.Top == outRect.Bottom)
{
return(Rect.Empty);
}
else
{
return(new Rect(
outRect.Left,
outRect.Top,
outRect.Right - outRect.Left,
outRect.Bottom - outRect.Top
));
}
}
//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
internal override void UpdateResource(DUCE.Channel channel, bool skipOnChannelCheck)
{
// If we're told we can skip the channel check, then we must be on channel
Debug.Assert(!skipOnChannelCheck || _duceResource.IsOnChannel(channel));
if (skipOnChannelCheck || _duceResource.IsOnChannel(channel))
{
base.UpdateResource(channel, skipOnChannelCheck);
// Read values of properties into local variables
Transform3D vTransform = Transform;
// Obtain handles for properties that implement DUCE.IResource
DUCE.ResourceHandle hTransform;
if (vTransform == null ||
Object.ReferenceEquals(vTransform, Transform3D.Identity)
)
{
hTransform = DUCE.ResourceHandle.Null;
}
else
{
hTransform = ((DUCE.IResource)vTransform).GetHandle(channel);
}
// Pack & send command packet
DUCE.MILCMD_MATRIXCAMERA data;
unsafe
{
data.Type = MILCMD.MilCmdMatrixCamera;
data.Handle = _duceResource.GetHandle(channel);
data.htransform = hTransform;
data.viewMatrix = CompositionResourceManager.Matrix3DToD3DMATRIX(ViewMatrix);
data.projectionMatrix = CompositionResourceManager.Matrix3DToD3DMATRIX(ProjectionMatrix);
// Send packed command structure
channel.SendCommand(
(byte *)&data,
sizeof(DUCE.MILCMD_MATRIXCAMERA));
}
}
}
//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
internal override void UpdateResource(DUCE.Channel channel, bool skipOnChannelCheck)
{
// If we're told we can skip the channel check, then we must be on channel
Debug.Assert(!skipOnChannelCheck || _duceResource.IsOnChannel(channel));
if (skipOnChannelCheck || _duceResource.IsOnChannel(channel))
{
base.UpdateResource(channel, skipOnChannelCheck);
// Pack & send command packet
DUCE.MILCMD_MATRIXTRANSFORM3D data;
unsafe
{
data.Type = MILCMD.MilCmdMatrixTransform3D;
data.Handle = _duceResource.GetHandle(channel);
data.matrix = CompositionResourceManager.Matrix3DToD3DMATRIX(Matrix);
// Send packed command structure
channel.SendCommand(
(byte *)&data,
sizeof(DUCE.MILCMD_MATRIXTRANSFORM3D));
}
}
}
