public VeldridImGuiWindow(GraphicsDevice gd, ImGuiViewportPtr vp)
{
_gcHandle = GCHandle.Alloc(this);
_gd = gd;
_vp = vp;
SDL_WindowFlags flags = SDL_WindowFlags.Hidden;
if ((vp.Flags & ImGuiViewportFlags.NoTaskBarIcon) != 0)
{
flags |= SDL_WindowFlags.SkipTaskbar;
}
if ((vp.Flags & ImGuiViewportFlags.NoDecoration) != 0)
{
flags |= SDL_WindowFlags.Borderless;
}
else
{
flags |= SDL_WindowFlags.Resizable;
}
if ((vp.Flags & ImGuiViewportFlags.TopMost) != 0)
{
flags |= SDL_WindowFlags.AlwaysOnTop;
}
_window = new Sdl2Window(
"No Title Yet",
(int)vp.Pos.X, (int)vp.Pos.Y,
(int)vp.Size.X, (int)vp.Size.Y,
flags,
false);
_window.Resized += () => _vp.PlatformRequestResize = true;
_window.Moved += p => _vp.PlatformRequestMove = true;
_window.Closed += () => _vp.PlatformRequestClose = true;
SwapchainSource scSource = VeldridStartup.GetSwapchainSource(_window);
SwapchainDescription scDesc = new SwapchainDescription(scSource, (uint)_window.Width, (uint)_window.Height, null, true, false);
_sc = _gd.ResourceFactory.CreateSwapchain(scDesc);
_window.Resized += () => _sc.Resize((uint)_window.Width, (uint)_window.Height);
unsafe
{
ViewportDataPtr data = new ViewportDataPtr(Marshal.AllocHGlobal(Unsafe.SizeOf <ViewportDataPtr>()));
vp.PlatformUserData = new HandleRef(data, (IntPtr)data.NativePtr).Handle;
}
vp.PlatformUserData = (IntPtr)_gcHandle;
}
/// <summary> /// Creates a new <see cref="Swapchain"/>. /// </summary> /// <param name="description">The desired properties of the created object.</param> /// <returns>A new <see cref="Swapchain"/>.</returns> public abstract Swapchain CreateSwapchain(ref SwapchainDescription description);
/// <summary> /// Creates a new <see cref="Swapchain"/>. /// </summary> /// <param name="description">The desired properties of the created object.</param> /// <returns>A new <see cref="Swapchain"/>.</returns> public Swapchain CreateSwapchain(SwapchainDescription description) => CreateSwapchain(ref description);