/// <summary>
/// Frees all graphics resources used by the renderer.
/// </summary>
public void Dispose()
{
#if DEBUG
using Profiler fullProfiler = new Profiler(GetType());
#endif
unsafe
{
var plIo = ImGui.GetPlatformIO();
Marshal.FreeHGlobal(plIo.NativePtr->Monitors.Data);
plIo.NativePtr->Monitors = new ImVector();
}
ClearCachedImageResources();
ImGui.DestroyContext();
ImPlot.DestroyContext();
ImNodes.Shutdown();
pipeline.Dispose();
vertexBuffer.Dispose();
indexBuffer.Dispose();
projMatrixBuffer.Dispose();
fontTextureResourceSet.Dispose();
fontTextureView.Dispose();
fontTexture.Dispose();
vertexShader.Dispose();
fragmentShader.Dispose();
mainResourceSet.Dispose();
layout.Dispose();
textureLayout.Dispose();
}
/// <summary>
/// Constructs a new ImGuiController.
/// </summary>
public ImGuiController(GraphicsDevice gd, OutputDescription outputDescription, WindowBase window)
{
#if DEBUG
using Profiler fullProfiler = new Profiler(GetType());
#endif
mainWindow = window;
Sdl2Window sdlWindow = window.SdlWindow;
windowWidth = sdlWindow.Width;
windowHeight = sdlWindow.Height;
ImPlot.CreateContext();
ImNodes.Initialize();
IntPtr imguiCtx = ImGui.CreateContext();
ImGui.SetCurrentContext(imguiCtx);
ImPlot.SetImGuiContext(imguiCtx);
ImNodes.SetImGuiContext(imguiCtx);
ImGuizmo.SetImGuiContext(imguiCtx);
ImGui.StyleColorsDark();
CreateDeviceResources(gd, outputDescription);
SetupImGuiIo(sdlWindow);
SetImGuiKeyMappings();
SetPerFrameImGuiData(1f / 60);
}
/// <summary>
/// Constructs a new ImGuiController.
/// </summary>
public unsafe ImGuiController(GraphicsDevice gd, Sdl2Window window, OutputDescription outputDescription, int width, int height)
{
_gd = gd;
_window = window;
_windowWidth = width;
_windowHeight = height;
//Create ImGui Context
var context = ImGui.CreateContext();
ImGui.SetCurrentContext(context);
//Create ImPlot Context
ImPlot.SetImGuiContext(context);
ImPlot.CreateContext();
//Create ImNodes Context
imnodes.SetImGuiContext(context);
imnodes.Initialize();
//Create ImGuizmo Context
ImGuizmo.SetImGuiContext(context);
ImGuiIOPtr io = ImGui.GetIO();
io.ConfigFlags |= ImGuiConfigFlags.DockingEnable;
io.ConfigFlags |= ImGuiConfigFlags.ViewportsEnable;
io.ConfigFlags |= ImGuiConfigFlags.NavEnableKeyboard;
io.ConfigFlags |= ImGuiConfigFlags.NavEnableGamepad;
ImGuiPlatformIOPtr platformIo = ImGui.GetPlatformIO();
ImGuiViewportPtr mainViewport = platformIo.Viewports[0];
mainViewport.PlatformHandle = window.Handle;
_mainViewportWindow = new VeldridImGuiWindow(gd, mainViewport, _window);
_createWindow = CreateWindow;
_destroyWindow = DestroyWindow;
_getWindowPos = GetWindowPos;
_showWindow = ShowWindow;
_setWindowPos = SetWindowPos;
_setWindowSize = SetWindowSize;
_getWindowSize = GetWindowSize;
_setWindowFocus = SetWindowFocus;
_getWindowFocus = GetWindowFocus;
_getWindowMinimized = GetWindowMinimized;
_setWindowTitle = SetWindowTitle;
platformIo.Platform_CreateWindow = Marshal.GetFunctionPointerForDelegate(_createWindow);
platformIo.Platform_DestroyWindow = Marshal.GetFunctionPointerForDelegate(_destroyWindow);
platformIo.Platform_ShowWindow = Marshal.GetFunctionPointerForDelegate(_showWindow);
platformIo.Platform_SetWindowPos = Marshal.GetFunctionPointerForDelegate(_setWindowPos);
platformIo.Platform_SetWindowSize = Marshal.GetFunctionPointerForDelegate(_setWindowSize);
platformIo.Platform_SetWindowFocus = Marshal.GetFunctionPointerForDelegate(_setWindowFocus);
platformIo.Platform_GetWindowFocus = Marshal.GetFunctionPointerForDelegate(_getWindowFocus);
platformIo.Platform_GetWindowMinimized = Marshal.GetFunctionPointerForDelegate(_getWindowMinimized);
platformIo.Platform_SetWindowTitle = Marshal.GetFunctionPointerForDelegate(_setWindowTitle);
ImGuiNative.ImGuiPlatformIO_Set_Platform_GetWindowPos(platformIo.NativePtr, Marshal.GetFunctionPointerForDelegate(_getWindowPos));
ImGuiNative.ImGuiPlatformIO_Set_Platform_GetWindowSize(platformIo.NativePtr, Marshal.GetFunctionPointerForDelegate(_getWindowSize));
unsafe
{
io.NativePtr->BackendPlatformName = (byte *)new FixedAsciiString("Veldrid.SDL2 Backend").DataPtr;
}
io.BackendFlags |= ImGuiBackendFlags.HasMouseCursors;
io.BackendFlags |= ImGuiBackendFlags.HasSetMousePos;
io.BackendFlags |= ImGuiBackendFlags.PlatformHasViewports;
io.BackendFlags |= ImGuiBackendFlags.RendererHasViewports;
io.Fonts.AddFontDefault();
CreateDeviceResources(gd, outputDescription);
SetKeyMappings();
SetPerFrameImGuiData(1f / 60f);
UpdateMonitors();
ImGui.NewFrame();
_frameBegun = true;
}
