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
));
}
}
string Disp(D3DMATRIX m)
{
return($@"{m._11:F3} {m._12:F3} {m._13:F3} {m._14:F3}
{m._21:F3} {m._22:F3} {m._23:F3} {m._24:F3}
{m._31:F3} {m._32:F3} {m._33:F3} {m._34:F3}
{m._41:F3} {m._42:F3} {m._43:F3} {m._44:F3}");
}
/// <unmanaged>HRESULT ID3DXSprite::SetTransform([In] const D3DXMATRIX* pTransform)</unmanaged>
public unsafe HRESULT SetTransform(ref D3DMATRIX transform)
{
fixed(void *pTransform = &transform)
{
//result = calli(System.Int32(System.Void*,System.Void*), this._nativePointer, ptr, *(*(IntPtr*)this._nativePointer + (IntPtr)5 * (IntPtr)sizeof(void*)));
return((HRESULT)NativeHelper.CalliInt32(5, _nativePointer, (void *)pTransform));
}
}
private extern static /*HRESULT*/ int MIL3DCalcProjected2DBounds(
ref D3DMATRIX pFullTransform3D,
ref MILRect3D pboxBounds,
out MilRectF prcDestRect);
public unsafe static void Draw2D(
D3DXSprite sprite,
Direct3DTexture9 texture,
RectangleF dstRect,
Size srcSize)
{
var scale = new D3DXVECTOR2(
dstRect.Width / (float)srcSize.Width,
dstRect.Height / (float)srcSize.Height);
var trans = new D3DXVECTOR2(dstRect.Location.X, dstRect.Location.Y);
D3DMATRIX m;
D3DMATRIX.Transformation2D(&m, null, 0f, &scale, null, 0f, &trans);
sprite.SetTransform(ref m).CheckError();
sprite.Draw(texture, null, null, null, 0xffffffff).CheckError();
}
