fd_Outline fd_outline_decompose(FT_Outline src)
{
var o = new fd_Outline();
if (Form == LongForm.Long4)
{
var bbox4 = new FT_BBox4();
var err = FT_Outline_Get_BBox_4(ref src, ref bbox4);
if (err != FT_Error.Ok)
{
throw new InvalidOperationException("FT_Outline_Get_BBox_4 failed");
}
o.bbox = new fd_Rect
{
min_x = (float)bbox4.xMin / 64.0f,
min_y = (float)bbox4.yMin / 64.0f,
max_x = (float)bbox4.xMax / 64.0f,
max_y = (float)bbox4.yMax / 64.0f,
};
var funcs = new FT_Outline_Funcs_4
{
move_to = Marshal.GetFunctionPointerForDelegate <MoveToFunc_4>(o.MoveTo_4),
line_to = Marshal.GetFunctionPointerForDelegate <LineToFunc_4>(o.LineTo_4),
conic_to = Marshal.GetFunctionPointerForDelegate <ConicToFunc_4>(o.ConicTo_4),
cubic_to = Marshal.GetFunctionPointerForDelegate <CubicToFunc_4>(o.CubicTo_4),
};
err = FT_Outline_Decompose_4(ref src, ref funcs, IntPtr.Zero);
if (err != FT_Error.Ok)
{
throw new InvalidOperationException("FT_Outline_Decompose_4 failed");
}
}
else
{
var bbox8 = new FT_BBox8();
var err = FT_Outline_Get_BBox_8(ref src, ref bbox8);
if (err != FT_Error.Ok)
{
throw new InvalidOperationException("FT_Outline_Get_BBox_8 failed");
}
o.bbox = new fd_Rect
{
min_x = (float)bbox8.xMin / 64.0f,
min_y = (float)bbox8.yMin / 64.0f,
max_x = (float)bbox8.xMax / 64.0f,
max_y = (float)bbox8.yMax / 64.0f,
};
var funcs = new FT_Outline_Funcs_8
{
move_to = Marshal.GetFunctionPointerForDelegate <MoveToFunc_8>(o.MoveTo_8),
line_to = Marshal.GetFunctionPointerForDelegate <LineToFunc_8>(o.LineTo_8),
conic_to = Marshal.GetFunctionPointerForDelegate <ConicToFunc_8>(o.ConicTo_8),
cubic_to = Marshal.GetFunctionPointerForDelegate <CubicToFunc_8>(o.CubicTo_8),
};
err = FT_Outline_Decompose_8(ref src, ref funcs, IntPtr.Zero);
if (err != FT_Error.Ok)
{
throw new InvalidOperationException("FT_Outline_Decompose_4 failed");
}
}
if (o.contours.Count > 0)
{
o.contours[o.contours.Count - 1].end = (uint)o.points.Count - 1;
}
return(o);
}
static extern FT_Error FT_Outline_Get_BBox_4(ref FT_Outline face, ref FT_BBox4 bbox);