added imgui

PracticeDx/CoreHandler.cpp

 #include "CoreHandler.h"
 #include <sstream>
+#include "imgui/imgui.h"
+#include "imgui/imgui_impl_dx11.h"
+#include "imgui/imgui_impl_win32.h"
 
 using namespace std;
 
@@ -10,8 +13,25 @@ CoreHandler::CoreHandler(Window& window, Logger& logger)
 	seed = int(seed) % 10000;
 };
 
+void CoreHandler::InitCoreHandler(Window& window, Logger& logger)
+{
+    // init imgui
+    ImGui_ImplDX11_Init(window.GetGfx().getDevice().Get(), window.GetGfx().getContext().Get());
+}
+
+void CoreHandler::CloseCoreHandler()
+{
+    // close imgui
+    ImGui_ImplDX11_Shutdown();
+}
+
 void CoreHandler::CoreProcess(Window& window, Graphics& gfx, HWND& hWnd, Logger& logger)
 {
+    // render imgui
+    ImGui_ImplDX11_NewFrame();
+    ImGui_ImplWin32_NewFrame();
+    ImGui::NewFrame();
+
     // Process event
     while (!Window::mouse.IsQueueEmpty())
     {
@@ -95,6 +115,11 @@ void CoreHandler::CoreProcess(Window& window, Graphics& gfx, HWND& hWnd, Logger&
     // Draw all scenes
     window.DrawScenes(window.GetGfx(), logger);
 
+    // render imgui
+    ImGui::ShowDemoWindow();
+    ImGui::Render();
+    ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
+
     // Set view port and present
     window.GetGfx().EndFrame();
 };

PracticeDx/CoreHandler.h

@@ -9,6 +9,8 @@ class CoreHandler
 {
 public:
 	CoreHandler(Window& window, Logger& logger);
+	void InitCoreHandler(Window& window, Logger& logger);
+	void CloseCoreHandler();
 	void CoreProcess(Window& window, Graphics& gfx, HWND& hWnd, Logger& logger);
 	void SetCamera(Window& window, Logger& logger);
 private:

PracticeDx/PracticeDx.vcxproj

@@ -135,6 +135,13 @@
     <ClCompile Include="DrawableBase.cpp" />
     <ClCompile Include="Graphics.cpp" />
     <ClCompile Include="Ground.cpp" />
+    <ClCompile Include="imgui\imgui.cpp" />
+    <ClCompile Include="imgui\imgui_demo.cpp" />
+    <ClCompile Include="imgui\imgui_draw.cpp" />
+    <ClCompile Include="imgui\imgui_impl_dx11.cpp" />
+    <ClCompile Include="imgui\imgui_impl_win32.cpp" />
+    <ClCompile Include="imgui\imgui_tables.cpp" />
+    <ClCompile Include="imgui\imgui_widgets.cpp" />
     <ClCompile Include="Mouse.cpp" />
     <ClCompile Include="Sampler.cpp" />
     <ClCompile Include="Surface.cpp" />
@@ -191,6 +198,14 @@
     <ClInclude Include="DrawableBase.h" />
     <ClInclude Include="Graphics.h" />
     <ClInclude Include="Ground.h" />
+    <ClInclude Include="imgui\imconfig.h" />
+    <ClInclude Include="imgui\imgui.h" />
+    <ClInclude Include="imgui\imgui_impl_dx11.h" />
+    <ClInclude Include="imgui\imgui_impl_win32.h" />
+    <ClInclude Include="imgui\imgui_internal.h" />
+    <ClInclude Include="imgui\imstb_rectpack.h" />
+    <ClInclude Include="imgui\imstb_textedit.h" />
+    <ClInclude Include="imgui\imstb_truetype.h" />
     <ClInclude Include="Mouse.h" />
     <ClInclude Include="Sampler.h" />
     <ClInclude Include="Surface.h" />

PracticeDx/PracticeDx.vcxproj.filters

@@ -46,6 +46,9 @@
     <Filter Include="Source Files\Util">
       <UniqueIdentifier>{65115cd4-ea49-4525-a0c8-6863874ba3f5}</UniqueIdentifier>
     </Filter>
+    <Filter Include="imgui">
+      <UniqueIdentifier>{de32cf52-e9e5-4cb1-aad6-dd272c7b3c20}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="WinMain.cpp">
@@ -123,6 +126,27 @@
     <ClCompile Include="Mouse.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="imgui\imgui.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
+    <ClCompile Include="imgui\imgui_demo.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
+    <ClCompile Include="imgui\imgui_draw.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
+    <ClCompile Include="imgui\imgui_impl_dx11.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
+    <ClCompile Include="imgui\imgui_impl_win32.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
+    <ClCompile Include="imgui\imgui_tables.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
+    <ClCompile Include="imgui\imgui_widgets.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <FxCompile Include="PixelShader.hlsl">
@@ -211,5 +235,29 @@
     <ClInclude Include="Mouse.h">
       <Filter>Header Files\Common</Filter>
     </ClInclude>
+    <ClInclude Include="imgui\imconfig.h">
+      <Filter>imgui</Filter>
+    </ClInclude>
+    <ClInclude Include="imgui\imgui.h">
+      <Filter>imgui</Filter>
+    </ClInclude>
+    <ClInclude Include="imgui\imgui_impl_dx11.h">
+      <Filter>imgui</Filter>
+    </ClInclude>
+    <ClInclude Include="imgui\imgui_impl_win32.h">
+      <Filter>imgui</Filter>
+    </ClInclude>
+    <ClInclude Include="imgui\imgui_internal.h">
+      <Filter>imgui</Filter>
+    </ClInclude>
+    <ClInclude Include="imgui\imstb_rectpack.h">
+      <Filter>imgui</Filter>
+    </ClInclude>
+    <ClInclude Include="imgui\imstb_textedit.h">
+      <Filter>imgui</Filter>
+    </ClInclude>
+    <ClInclude Include="imgui\imstb_truetype.h">
+      <Filter>imgui</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>
\ No newline at end of file

PracticeDx/WinMain.cpp

@@ -3,6 +3,9 @@
 #include "Graphics.h"
 #include "Logger.h"
 #include "CoreHandler.h"
+#include "imgui/imgui.h"
+#include "imgui/imgui_impl_dx11.h"
+#include "imgui/imgui_impl_win32.h"
 
 Logger logger("log.txt");
 
@@ -16,12 +19,17 @@ int WINAPI WinMain(HINSTANCE hInstance,
 
     // the handle for the window, filled by a function
     HWND hWnd = nullptr;
-    
+
     // register window
     Window window(hWnd, hInstance, nCmdShow, 800, 600, logger);
 
+    // init imgui
+    ImGui::CreateContext();
+    ImGui_ImplWin32_Init(hWnd);
+
     // init core handler for interactive process, i.e. retrieve IO and process graphics
     CoreHandler coreHandler(window, logger);
+    coreHandler.InitCoreHandler(window, logger);
 
     // this struct holds Windows event messages
     MSG msg;
@@ -52,6 +60,13 @@ int WINAPI WinMain(HINSTANCE hInstance,
 
     logger.end();
 
+    // Close coreHandler
+    coreHandler.CloseCoreHandler();
+
+    // close imgui
+    ImGui_ImplWin32_Shutdown();
+    ImGui::DestroyContext();
+
     // return this part of the WM_QUIT message to Windows
     return msg.wParam;
 }
\ No newline at end of file

PracticeDx/Window.cpp

 #include "Window.h"
 #include "Ground.h"
+#include "imgui/imgui.h"
 
 Mouse Window::mouse;
 
@@ -88,6 +89,10 @@ LRESULT CALLBACK Window::HandleMsgThunk(HWND hWnd, UINT msg, WPARAM wParam, LPAR
 
 LRESULT Window::HandleMsg(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) noexcept
 {
+    // for imgui
+    extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
+    ImGui_ImplWin32_WndProcHandler(hWnd, msg, wParam, lParam);
+
     POINTS pt;
     switch (msg)
     {

PracticeDx/imgui/imconfig.h

+//-----------------------------------------------------------------------------
+// COMPILE-TIME OPTIONS FOR DEAR IMGUI
+// Runtime options (clipboard callbacks, enabling various features, etc.) can generally be set via the ImGuiIO structure.
+// You can use ImGui::SetAllocatorFunctions() before calling ImGui::CreateContext() to rewire memory allocation functions.
+//-----------------------------------------------------------------------------
+// A) You may edit imconfig.h (and not overwrite it when updating Dear ImGui, or maintain a patch/rebased branch with your modifications to it)
+// B) or '#define IMGUI_USER_CONFIG "my_imgui_config.h"' in your project and then add directives in your own file without touching this template.
+//-----------------------------------------------------------------------------
+// You need to make sure that configuration settings are defined consistently _everywhere_ Dear ImGui is used, which include the imgui*.cpp
+// files but also _any_ of your code that uses Dear ImGui. This is because some compile-time options have an affect on data structures.
+// Defining those options in imconfig.h will ensure every compilation unit gets to see the same data structure layouts.
+// Call IMGUI_CHECKVERSION() from your .cpp files to verify that the data structures your files are using are matching the ones imgui.cpp is using.
+//-----------------------------------------------------------------------------
+
+#pragma once
+
+//---- Define assertion handler. Defaults to calling assert().
+// If your macro uses multiple statements, make sure is enclosed in a 'do { .. } while (0)' block so it can be used as a single statement.
+//#define IM_ASSERT(_EXPR)  MyAssert(_EXPR)
+//#define IM_ASSERT(_EXPR)  ((void)(_EXPR))     // Disable asserts
+
+//---- Define attributes of all API symbols declarations, e.g. for DLL under Windows
+// Using Dear ImGui via a shared library is not recommended, because of function call overhead and because we don't guarantee backward nor forward ABI compatibility.
+// DLL users: heaps and globals are not shared across DLL boundaries! You will need to call SetCurrentContext() + SetAllocatorFunctions()
+// for each static/DLL boundary you are calling from. Read "Context and Memory Allocators" section of imgui.cpp for more details.
+//#define IMGUI_API __declspec( dllexport )
+//#define IMGUI_API __declspec( dllimport )
+
+//---- Don't define obsolete functions/enums/behaviors. Consider enabling from time to time after updating to avoid using soon-to-be obsolete function/names.
+//#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+//#define IMGUI_DISABLE_OBSOLETE_KEYIO                      // 1.87: disable legacy io.KeyMap[]+io.KeysDown[] in favor io.AddKeyEvent(). This will be folded into IMGUI_DISABLE_OBSOLETE_FUNCTIONS in a few versions.
+
+//---- Disable all of Dear ImGui or don't implement standard windows/tools.
+// It is very strongly recommended to NOT disable the demo windows and debug tool during development. They are extremely useful in day to day work. Please read comments in imgui_demo.cpp.
+//#define IMGUI_DISABLE                                     // Disable everything: all headers and source files will be empty.
+//#define IMGUI_DISABLE_DEMO_WINDOWS                        // Disable demo windows: ShowDemoWindow()/ShowStyleEditor() will be empty.
+//#define IMGUI_DISABLE_DEBUG_TOOLS                         // Disable metrics/debugger and other debug tools: ShowMetricsWindow(), ShowDebugLogWindow() and ShowStackToolWindow() will be empty (this was called IMGUI_DISABLE_METRICS_WINDOW before 1.88).
+
+//---- Don't implement some functions to reduce linkage requirements.
+//#define IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS   // [Win32] Don't implement default clipboard handler. Won't use and link with OpenClipboard/GetClipboardData/CloseClipboard etc. (user32.lib/.a, kernel32.lib/.a)
+//#define IMGUI_ENABLE_WIN32_DEFAULT_IME_FUNCTIONS          // [Win32] [Default with Visual Studio] Implement default IME handler (require imm32.lib/.a, auto-link for Visual Studio, -limm32 on command-line for MinGW)
+//#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS         // [Win32] [Default with non-Visual Studio compilers] Don't implement default IME handler (won't require imm32.lib/.a)
+//#define IMGUI_DISABLE_WIN32_FUNCTIONS                     // [Win32] Won't use and link with any Win32 function (clipboard, ime).
+//#define IMGUI_ENABLE_OSX_DEFAULT_CLIPBOARD_FUNCTIONS      // [OSX] Implement default OSX clipboard handler (need to link with '-framework ApplicationServices', this is why this is not the default).
+//#define IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS            // Don't implement ImFormatString/ImFormatStringV so you can implement them yourself (e.g. if you don't want to link with vsnprintf)
+//#define IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS              // Don't implement ImFabs/ImSqrt/ImPow/ImFmod/ImCos/ImSin/ImAcos/ImAtan2 so you can implement them yourself.
+//#define IMGUI_DISABLE_FILE_FUNCTIONS                      // Don't implement ImFileOpen/ImFileClose/ImFileRead/ImFileWrite and ImFileHandle at all (replace them with dummies)
+//#define IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS              // Don't implement ImFileOpen/ImFileClose/ImFileRead/ImFileWrite and ImFileHandle so you can implement them yourself if you don't want to link with fopen/fclose/fread/fwrite. This will also disable the LogToTTY() function.
+//#define IMGUI_DISABLE_DEFAULT_ALLOCATORS                  // Don't implement default allocators calling malloc()/free() to avoid linking with them. You will need to call ImGui::SetAllocatorFunctions().
+//#define IMGUI_DISABLE_SSE                                 // Disable use of SSE intrinsics even if available
+
+//---- Include imgui_user.h at the end of imgui.h as a convenience
+//#define IMGUI_INCLUDE_IMGUI_USER_H
+
+//---- Pack colors to BGRA8 instead of RGBA8 (to avoid converting from one to another)
+//#define IMGUI_USE_BGRA_PACKED_COLOR
+
+//---- Use 32-bit for ImWchar (default is 16-bit) to support unicode planes 1-16. (e.g. point beyond 0xFFFF like emoticons, dingbats, symbols, shapes, ancient languages, etc...)
+//#define IMGUI_USE_WCHAR32
+
+//---- Avoid multiple STB libraries implementations, or redefine path/filenames to prioritize another version
+// By default the embedded implementations are declared static and not available outside of Dear ImGui sources files.
+//#define IMGUI_STB_TRUETYPE_FILENAME   "my_folder/stb_truetype.h"
+//#define IMGUI_STB_RECT_PACK_FILENAME  "my_folder/stb_rect_pack.h"
+//#define IMGUI_STB_SPRINTF_FILENAME    "my_folder/stb_sprintf.h"    // only used if enabled
+//#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
+//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
+
+//---- Use stb_sprintf.h for a faster implementation of vsnprintf instead of the one from libc (unless IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS is defined)
+// Compatibility checks of arguments and formats done by clang and GCC will be disabled in order to support the extra formats provided by stb_sprintf.h.
+//#define IMGUI_USE_STB_SPRINTF
+
+//---- Use FreeType to build and rasterize the font atlas (instead of stb_truetype which is embedded by default in Dear ImGui)
+// Requires FreeType headers to be available in the include path. Requires program to be compiled with 'misc/freetype/imgui_freetype.cpp' (in this repository) + the FreeType library (not provided).
+// On Windows you may use vcpkg with 'vcpkg install freetype --triplet=x64-windows' + 'vcpkg integrate install'.
+//#define IMGUI_ENABLE_FREETYPE
+
+//---- Use stb_truetype to build and rasterize the font atlas (default)
+// The only purpose of this define is if you want force compilation of the stb_truetype backend ALONG with the FreeType backend.
+//#define IMGUI_ENABLE_STB_TRUETYPE
+
+//---- Define constructor and implicit cast operators to convert back<>forth between your math types and ImVec2/ImVec4.
+// This will be inlined as part of ImVec2 and ImVec4 class declarations.
+/*
+#define IM_VEC2_CLASS_EXTRA                                                     \
+        constexpr ImVec2(const MyVec2& f) : x(f.x), y(f.y) {}                   \
+        operator MyVec2() const { return MyVec2(x,y); }
+
+#define IM_VEC4_CLASS_EXTRA                                                     \
+        constexpr ImVec4(const MyVec4& f) : x(f.x), y(f.y), z(f.z), w(f.w) {}   \
+        operator MyVec4() const { return MyVec4(x,y,z,w); }
+*/
+//---- ...Or use Dear ImGui's own very basic math operators.
+//#define IMGUI_DEFINE_MATH_OPERATORS
+
+//---- Use 32-bit vertex indices (default is 16-bit) is one way to allow large meshes with more than 64K vertices.
+// Your renderer backend will need to support it (most example renderer backends support both 16/32-bit indices).
+// Another way to allow large meshes while keeping 16-bit indices is to handle ImDrawCmd::VtxOffset in your renderer.
+// Read about ImGuiBackendFlags_RendererHasVtxOffset for details.
+//#define ImDrawIdx unsigned int
+
+//---- Override ImDrawCallback signature (will need to modify renderer backends accordingly)
+//struct ImDrawList;
+//struct ImDrawCmd;
+//typedef void (*MyImDrawCallback)(const ImDrawList* draw_list, const ImDrawCmd* cmd, void* my_renderer_user_data);
+//#define ImDrawCallback MyImDrawCallback
+
+//---- Debug Tools: Macro to break in Debugger
+// (use 'Metrics->Tools->Item Picker' to pick widgets with the mouse and break into them for easy debugging.)
+//#define IM_DEBUG_BREAK  IM_ASSERT(0)
+//#define IM_DEBUG_BREAK  __debugbreak()
+
+//---- Debug Tools: Enable slower asserts
+//#define IMGUI_DEBUG_PARANOID
+
+//---- Tip: You can add extra functions within the ImGui:: namespace, here or in your own headers files.
+/*
+namespace ImGui
+{
+    void MyFunction(const char* name, const MyMatrix44& v);
+}
+*/

PracticeDx/imgui/imgui_impl_dx11.h

+// dear imgui: Renderer Backend for DirectX11
+// This needs to be used along with a Platform Backend (e.g. Win32)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this. 
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
+// Read online: https://github.com/ocornut/imgui/tree/master/docs
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+
+struct ID3D11Device;
+struct ID3D11DeviceContext;
+
+IMGUI_IMPL_API bool     ImGui_ImplDX11_Init(ID3D11Device* device, ID3D11DeviceContext* device_context);
+IMGUI_IMPL_API void     ImGui_ImplDX11_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplDX11_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data);
+
+// Use if you want to reset your rendering device without losing Dear ImGui state.
+IMGUI_IMPL_API void     ImGui_ImplDX11_InvalidateDeviceObjects();
+IMGUI_IMPL_API bool     ImGui_ImplDX11_CreateDeviceObjects();

PracticeDx/imgui/imgui_impl_win32.h

+// dear imgui: Platform Backend for Windows (standard windows API for 32-bits AND 64-bits applications)
+// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
+
+// Implemented features:
+//  [X] Platform: Clipboard support (for Win32 this is actually part of core dear imgui)
+//  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen.
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy VK_* values will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set]
+//  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
+// Read online: https://github.com/ocornut/imgui/tree/master/docs
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+
+IMGUI_IMPL_API bool     ImGui_ImplWin32_Init(void* hwnd);
+IMGUI_IMPL_API bool     ImGui_ImplWin32_InitForOpenGL(void* hwnd);
+IMGUI_IMPL_API void     ImGui_ImplWin32_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplWin32_NewFrame();
+
+// Win32 message handler your application need to call.
+// - Intentionally commented out in a '#if 0' block to avoid dragging dependencies on <windows.h> from this helper.
+// - You should COPY the line below into your .cpp code to forward declare the function and then you can call it.
+// - Call from your application's message handler. Keep calling your message handler unless this function returns TRUE.
+
+#if 0
+extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
+#endif
+
+// DPI-related helpers (optional)
+// - Use to enable DPI awareness without having to create an application manifest.
+// - Your own app may already do this via a manifest or explicit calls. This is mostly useful for our examples/ apps.
+// - In theory we could call simple functions from Windows SDK such as SetProcessDPIAware(), SetProcessDpiAwareness(), etc.
+//   but most of the functions provided by Microsoft require Windows 8.1/10+ SDK at compile time and Windows 8/10+ at runtime,
+//   neither we want to require the user to have. So we dynamically select and load those functions to avoid dependencies.
+IMGUI_IMPL_API void     ImGui_ImplWin32_EnableDpiAwareness();
+IMGUI_IMPL_API float    ImGui_ImplWin32_GetDpiScaleForHwnd(void* hwnd);       // HWND hwnd
+IMGUI_IMPL_API float    ImGui_ImplWin32_GetDpiScaleForMonitor(void* monitor); // HMONITOR monitor
+
+// Transparency related helpers (optional) [experimental]
+// - Use to enable alpha compositing transparency with the desktop.
+// - Use together with e.g. clearing your framebuffer with zero-alpha.
+IMGUI_IMPL_API void     ImGui_ImplWin32_EnableAlphaCompositing(void* hwnd);   // HWND hwnd