public Swapchain CreateSwapchain()
{
Swapchain swapchain;
if (Widget.Backend == GraphicsBackend.OpenGL)
{
swapchain = Widget.GraphicsDevice.MainSwapchain;
}
else
{
// To embed Veldrid in an Eto control, these platform-specific
// versions of CreateSwapchain use the technique outlined here:
//
// https://github.com/mellinoe/veldrid/issues/155
//
var source = SwapchainSource.CreateXlib(
X11Interop.gdk_x11_display_get_xdisplay(Control.Display.Handle),
X11Interop.gdk_x11_window_get_xid(Control.Window.Handle));
var renderSize = RenderSize;
swapchain = Widget.GraphicsDevice.ResourceFactory.CreateSwapchain(
new SwapchainDescription(
source,
(uint)renderSize.Width,
(uint)renderSize.Height,
Widget.GraphicsDeviceOptions.SwapchainDepthFormat,
Widget.GraphicsDeviceOptions.SyncToVerticalBlank,
Widget.GraphicsDeviceOptions.SwapchainSrgbFormat));
}
return(swapchain);
}
public static unsafe SwapchainSource GetSwapchainSource(Sdl2Window window)
{
IntPtr sdlHandle = window.SdlWindowHandle;
SDL_SysWMinfo sysWmInfo;
Sdl2Native.SDL_GetVersion(&sysWmInfo.version);
Sdl2Native.SDL_GetWMWindowInfo(sdlHandle, &sysWmInfo);
switch (sysWmInfo.subsystem)
{
case SysWMType.Windows:
Win32WindowInfo w32Info = Unsafe.Read <Win32WindowInfo>(&sysWmInfo.info);
return(SwapchainSource.CreateWin32(w32Info.Sdl2Window, w32Info.hinstance));
case SysWMType.X11:
X11WindowInfo x11Info = Unsafe.Read <X11WindowInfo>(&sysWmInfo.info);
return(SwapchainSource.CreateXlib(
x11Info.display,
x11Info.Sdl2Window));
case SysWMType.Cocoa:
CocoaWindowInfo cocoaInfo = Unsafe.Read <CocoaWindowInfo>(&sysWmInfo.info);
IntPtr nsWindow = cocoaInfo.Window;
return(SwapchainSource.CreateNSWindow(nsWindow));
default:
throw new PlatformNotSupportedException("Cannot create a SwapchainSource for " + sysWmInfo.subsystem + ".");
}
}
private static SwapchainSource GetSwapchainSource(IntPtr window)
{
SDL.SDL_SysWMinfo sysWmInfo = new SDL.SDL_SysWMinfo();
SDL.SDL_GetVersion(out sysWmInfo.version);
SDL.SDL_GetWindowWMInfo(window, ref sysWmInfo);
switch (sysWmInfo.subsystem)
{
case SDL.SDL_SYSWM_TYPE.SDL_SYSWM_WINDOWS:
ref var w32Info = ref sysWmInfo.info.win;
return(SwapchainSource.CreateWin32(w32Info.window, w32Info.hdc));
case SDL.SDL_SYSWM_TYPE.SDL_SYSWM_X11:
ref var x11Info = ref sysWmInfo.info.x11;
return(SwapchainSource.CreateXlib(
x11Info.display,
x11Info.window));
case SDL.SDL_SYSWM_TYPE.SDL_SYSWM_COCOA:
ref var cocoaInfo = ref sysWmInfo.info.cocoa;
var nsWindow = cocoaInfo.window;
return(SwapchainSource.CreateNSWindow(nsWindow));
default:
throw new PlatformNotSupportedException("Cannot create a SwapchainSource for " + sysWmInfo.subsystem + ".");
}
}