private void InitializeGraphicsBackend()
{
switch (Backend)
{
case GraphicsBackend.Metal:
GraphicsDevice = GraphicsDevice.CreateMetal(GraphicsDeviceOptions);
break;
case GraphicsBackend.Vulkan:
GraphicsDevice = GraphicsDevice.CreateVulkan(GraphicsDeviceOptions);
break;
case GraphicsBackend.Direct3D11:
GraphicsDevice = GraphicsDevice.CreateD3D11(GraphicsDeviceOptions);
break;
case GraphicsBackend.OpenGL:
Handler.UpdateWindowInfo(OpenTKGraphicsMode);
var glInfo = new OpenGLPlatformInfo(
VeldridGL.GetGLContextHandle(),
VeldridGL.GetProcAddress,
(c) => OpenTKGraphicsContext.MakeCurrent(Handler.WindowInfo),
VeldridGL.GetCurrentContext,
VeldridGL.ClearCurrentContext,
VeldridGL.DeleteContext,
VeldridGL.SwapBuffers,
VeldridGL.SetVSync,
VeldridGL.SetSwapchainFramebuffer,
Handler.ResizeSwapchain);
GraphicsDevice = GraphicsDevice.CreateOpenGL(
GraphicsDeviceOptions,
glInfo,
(uint)RenderWidth,
(uint)RenderHeight);
break;
default:
string message;
if (!Enum.IsDefined(typeof(GraphicsBackend), Backend))
{
message = "Unrecognized backend!";
}
else
{
message = "Specified backend not supported on this platform!";
}
throw new ArgumentException(message);
}
Swapchain = Handler.CreateSwapchain();
OnVeldridInitialized(EventArgs.Empty);
}
protected virtual void OnWindowInfoUpdated(EventArgs e)
{
if (Backend != GraphicsBackend.OpenGL)
{
return;
}
if (OpenTKGraphicsContext == null)
{
OpenTKGraphicsContext = new GraphicsContext(
OpenTKGraphicsMode,
Handler.WindowInfo,
3, 3,
GraphicsContextFlags.ForwardCompatible);
}
else
{
OpenTKGraphicsContext.Update(Handler.WindowInfo);
}
OpenTKGraphicsContext.MakeCurrent(Handler.WindowInfo);
}