tomato/examples/example_win32_directx11/main.cpp
Green Sky 293f4fd0a0 Squashed 'external/imgui/imgui/' changes from 6ccc561a2ab..00ad3c65bc2
00ad3c65bc2 Version 1.90.7
f814ef816fb Commented out CaptureKeyboardFromApp(), CaptureMouseFromApp(). Commented out obsolete IsKeyPressedMap() from imgui_internal.h (can call IsKeyPressed). Comments
b9084949bd7 Fixed typo in IsMouseDragging and GetMouseDragDelta's documentation. (#7620)
86931393a36 Shortcuts: Revert "SetShortcutRouting: require explicit routing. (#456)
7832e6a70e6 Shortcuts: Routing: fixed mixed keys<>chars filtering not applying on global routes. (#456, #7618)
85d982011e9 Shortcuts: fixed priority of route calculation (higher first). (#456, #7618)
ce4e210dcb6 Shotcuts: renamed ImGuiInputFlags_RouteGlobalOverFocused -> ImGuiInputFlags_RouteOverFocused, ImGuiInputFlags_RouteGlobalOverActive -> ImGuiInputFlags_RouteOverActive in previsiion of using them with a Hovered route. (#456)
5ce3d299555 Shortcuts: rename ImGuiInputFlags_RouteGlobalHighest to ImGuiInputFlags_RouteGlobalOverActive, made ImGuiInputFlags_RouteGlobalOverFocused and ImGuiInputFlags_RouteGlobalOverActive flags. (#456)
650cb51bf10 Shortcuts: renamed ImGuiInputFlags_RouteActiveItem to ImGuiInputFlags_RouteActive. (#456, #7618)
ef9d525f02c Shortcuts: added ImGuiInputFlags_RouteActiveItem. (#456, #7618) + rearrange Changelog
16b72f2d210 Comments
29439bdd27c Windows: BeginChild(): fixed auto-fit calculation when using either (not both) ResizeX/ResizeY and double-clicking on a border. (#1710)
374b9a7fb43 Demo: Documents: refactor + add Renaming option. (#7233)
c150ad50c46 Shortcuts: claim mods ownership once pressed. (#456, #2637, #2620, #2891, #3370, #3724, #4828, #5108, #5242, #5641)
1002cfa6d2d Demo, Shortcut(): amend Shortcuts demo. (#456)
7c71e66370d Shortcuts, SetShortcutRouting: move ImGuiInputFlags_RouteFromRootWindow evaluation to SetShortcutRouting() for now. (#456)
d5a600e9c64 Shortcuts, SetShortcutRouting: added ImGuiInputFlags_RouteFromRootWindow. Made it possible for SetShortcutRouting() to query for another location.
0eb025f4847 Internals: move ItemHandleShortcut() next to Shortcut(), it's calling it anyhow. (#456)
a689fa262ae SetShortcutRouting: require explicit routing. (#456)
c06e6340cde Shortcuts: added ImGuiInputFlags_Tooltip. (#456)
77e41718940 Shortcuts: added flags to SetNextItemShortcut(). (#456)
197f8904fe8 Shortcuts, Nav: make SetNextItemShortcut() work when another item is active. Made NavCalcPreferredRefPos() take account for remote activation. (#456)
dc5caa483cd Demo: added "Shortcuts" section. (#456, #2637)
fc512a24741 Inputs: Added Shortcut(), SetNextItemShortcut(). Added ImGuiInputFlags, ImGuiInputFlags_RouteXXXX. (#456, #2637)
85513de2476 Internals, Inputs: *Breaking* Swapped parameter order of owner-aware versions of IsKeyPressed(), IsKeyChordPressed(), IsMouseClicked(). (#456)
900b29055c5 Internals, Inputs: *Breaking* Swapped parameter order of Shortcut(). (#456)
55748cdbe12 Internals, Inputs: *Breaking* Renamed ImGuiKeyOwner_None to ImGuiKeyOwner_NoOwner: avoid confusion with non zero value, makes IsKeyPressed() calls using ImGuiKeyOwner_NoOwner more explicit.
ec1d2be96f3 Examples: Win32+DX9,DX10,DX11,DX12: rework main loop to handle minimization and screen locking. (#2496, #3907, #6308, #7615)
6d1a6f1c748 Internals, Inputs: Comments, alignment.
4c3eac2c10e Backends: OpenGL3: Fixed zealous warning by initializing last_pixel_unpack_buffer. (#7614)
a1566c5e1ba Tables: fixed 28a283b breaking PageDown on tables with no interactive items.
aa725ca79dc Inputs: moving ImGuiInputFlags_RouteAlways into ImGuiInputFlags_RouteTypeMask_
cd48059dc53 Tables: comments about skipping access to table data in coarse clipping path.
28a283b4603 Windows: BeginChild(), Tables:fixed visibility of fully clipped child windows and tables to Test Engine.
aa5a6098ee2 Fixed typos in comments (#7599)
d39ca33b63a Fixed false positive with PVS-Studio.
ae8218a3eaf Inputs, Shortcut: fixes some edge cases for GetKeyChordName(), clarify that it is aimed at display. (#456)
25e279ee73f Inputs: Treat ctrl-left-click as right click when ConfigMacOSXBehaviors is set. (#2343)
b4f564c1ed7 Internals: Shortcuts: *Breaking* : rename ImGuiInputFlags_RouteGlobalLow -> ImGuiInputFlags_RouteGlobal, ImGuiInputFlags_RouteGlobal -> ImGuiInputFlags_RouteGlobalOverFocused, ImGuiInputFlags_RouteGlobalHigh -> ImGuiInputFlags_RouteGlobalHighest (#456)
5107e58b0f3 Inputs: amend changelog and clarify how the swap might be a breaking change for a minority of users. (#2343)
8bd5d1d42f0 Inputs: Fixed swapping of keys associated to mods. Fixed warnings. (#2343, #4084, #5923, #456)
77471066471 Inputs: swap Ctrl and Cmd on macOS X, remove ImGuiMod_Shortcut. (#2343, #4084, #5923, #456)
07dbcf1f70d Fixed typos. (#7593)
93daf232233 Examples: SDL3: updates for latest SDL3 API changes.
e45efa9951a Backends: SDL3: Rename SDLK_QUOTE and SDLK_BACKQUOTE to SDLK_APOSTROPHE and SDLK_GRAVE. (#7580)
5d973a87d45 Backends: SDL_Renderer2/SDL_Renderer3: and ImGui_ImplSDLRenderer2_RenderDrawData() and ImGui_ImplSDLRenderer3_RenderDrawData() now takes a SDL_Renderer* parameter.
af2fbf043df Backends/Internals: Don't use IME and clipboard default win32 functions when WINAPI_FAMILY_GAMES (#7585)
e4576914cb9 Internals: amend f806c76 to better match docking + fixed unused static forward declaration warning.
d0524df8879 Internals: slight refactor FindHoveredWindow() -> FindHoveredWindowEx() toward reducing far-away code duplication.
f806c76e97b Tables, Dpi: added dummy g.DpiScale storage (to be altered in docking), using to scale tables border hit thickness.
f0912833ba9 Update FAQ.md (#7581)
ac90e1bd5bd Backends: Win32: replace bd != nullptr assert with early out. (#6275)
0a5d40a0161 Update FAQ.md
d06b8b58d84 Nav: fixed holding Ctrl or gamepad L1 from not slowing down keyboard/gamepad tweak speed.
5e236804541 Backends: all backends + demo now call IMGUI_CHECKVERSION() to verify ABI compatibility between caller code and compiled version of dear imgui. (#7568)
510eb8f4801 Tables: fixed cell background of fully clipped row overlapping with header. (#7575, #7041)
f48aae600a2 Version 1.90.7 WIP

git-subtree-dir: external/imgui/imgui
git-subtree-split: 00ad3c65bc256a16521288505f26fb335440f8f5
2024-05-28 17:12:43 +02:00

275 lines
12 KiB
C++

// Dear ImGui: standalone example application for DirectX 11
// Learn about Dear ImGui:
// - FAQ https://dearimgui.com/faq
// - Getting Started https://dearimgui.com/getting-started
// - Documentation https://dearimgui.com/docs (same as your local docs/ folder).
// - Introduction, links and more at the top of imgui.cpp
#include "imgui.h"
#include "imgui_impl_win32.h"
#include "imgui_impl_dx11.h"
#include <d3d11.h>
#include <tchar.h>
// Data
static ID3D11Device* g_pd3dDevice = nullptr;
static ID3D11DeviceContext* g_pd3dDeviceContext = nullptr;
static IDXGISwapChain* g_pSwapChain = nullptr;
static bool g_SwapChainOccluded = false;
static UINT g_ResizeWidth = 0, g_ResizeHeight = 0;
static ID3D11RenderTargetView* g_mainRenderTargetView = nullptr;
// Forward declarations of helper functions
bool CreateDeviceD3D(HWND hWnd);
void CleanupDeviceD3D();
void CreateRenderTarget();
void CleanupRenderTarget();
LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
// Main code
int main(int, char**)
{
// Create application window
//ImGui_ImplWin32_EnableDpiAwareness();
WNDCLASSEXW wc = { sizeof(wc), CS_CLASSDC, WndProc, 0L, 0L, GetModuleHandle(nullptr), nullptr, nullptr, nullptr, nullptr, L"ImGui Example", nullptr };
::RegisterClassExW(&wc);
HWND hwnd = ::CreateWindowW(wc.lpszClassName, L"Dear ImGui DirectX11 Example", WS_OVERLAPPEDWINDOW, 100, 100, 1280, 800, nullptr, nullptr, wc.hInstance, nullptr);
// Initialize Direct3D
if (!CreateDeviceD3D(hwnd))
{
CleanupDeviceD3D();
::UnregisterClassW(wc.lpszClassName, wc.hInstance);
return 1;
}
// Show the window
::ShowWindow(hwnd, SW_SHOWDEFAULT);
::UpdateWindow(hwnd);
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
// Setup Dear ImGui style
ImGui::StyleColorsDark();
//ImGui::StyleColorsLight();
// Setup Platform/Renderer backends
ImGui_ImplWin32_Init(hwnd);
ImGui_ImplDX11_Init(g_pd3dDevice, g_pd3dDeviceContext);
// Load Fonts
// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
// - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
// - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
// - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
// - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
// - Read 'docs/FONTS.md' for more instructions and details.
// - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
//io.Fonts->AddFontDefault();
//io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
//ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
//IM_ASSERT(font != nullptr);
// Our state
bool show_demo_window = true;
bool show_another_window = false;
ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
// Main loop
bool done = false;
while (!done)
{
// Poll and handle messages (inputs, window resize, etc.)
// See the WndProc() function below for our to dispatch events to the Win32 backend.
MSG msg;
while (::PeekMessage(&msg, nullptr, 0U, 0U, PM_REMOVE))
{
::TranslateMessage(&msg);
::DispatchMessage(&msg);
if (msg.message == WM_QUIT)
done = true;
}
if (done)
break;
// Handle window being minimized or screen locked
if (g_SwapChainOccluded && g_pSwapChain->Present(0, DXGI_PRESENT_TEST) == DXGI_STATUS_OCCLUDED)
{
::Sleep(10);
continue;
}
g_SwapChainOccluded = false;
// Handle window resize (we don't resize directly in the WM_SIZE handler)
if (g_ResizeWidth != 0 && g_ResizeHeight != 0)
{
CleanupRenderTarget();
g_pSwapChain->ResizeBuffers(0, g_ResizeWidth, g_ResizeHeight, DXGI_FORMAT_UNKNOWN, 0);
g_ResizeWidth = g_ResizeHeight = 0;
CreateRenderTarget();
}
// Start the Dear ImGui frame
ImGui_ImplDX11_NewFrame();
ImGui_ImplWin32_NewFrame();
ImGui::NewFrame();
// 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
if (show_demo_window)
ImGui::ShowDemoWindow(&show_demo_window);
// 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
{
static float f = 0.0f;
static int counter = 0;
ImGui::Begin("Hello, world!"); // Create a window called "Hello, world!" and append into it.
ImGui::Text("This is some useful text."); // Display some text (you can use a format strings too)
ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our window open/close state
ImGui::Checkbox("Another Window", &show_another_window);
ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f
ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
if (ImGui::Button("Button")) // Buttons return true when clicked (most widgets return true when edited/activated)
counter++;
ImGui::SameLine();
ImGui::Text("counter = %d", counter);
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
ImGui::End();
}
// 3. Show another simple window.
if (show_another_window)
{
ImGui::Begin("Another Window", &show_another_window); // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked)
ImGui::Text("Hello from another window!");
if (ImGui::Button("Close Me"))
show_another_window = false;
ImGui::End();
}
// Rendering
ImGui::Render();
const float clear_color_with_alpha[4] = { clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w };
g_pd3dDeviceContext->OMSetRenderTargets(1, &g_mainRenderTargetView, nullptr);
g_pd3dDeviceContext->ClearRenderTargetView(g_mainRenderTargetView, clear_color_with_alpha);
ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
// Present
HRESULT hr = g_pSwapChain->Present(1, 0); // Present with vsync
//HRESULT hr = g_pSwapChain->Present(0, 0); // Present without vsync
g_SwapChainOccluded = (hr == DXGI_STATUS_OCCLUDED);
}
// Cleanup
ImGui_ImplDX11_Shutdown();
ImGui_ImplWin32_Shutdown();
ImGui::DestroyContext();
CleanupDeviceD3D();
::DestroyWindow(hwnd);
::UnregisterClassW(wc.lpszClassName, wc.hInstance);
return 0;
}
// Helper functions
bool CreateDeviceD3D(HWND hWnd)
{
// Setup swap chain
DXGI_SWAP_CHAIN_DESC sd;
ZeroMemory(&sd, sizeof(sd));
sd.BufferCount = 2;
sd.BufferDesc.Width = 0;
sd.BufferDesc.Height = 0;
sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
sd.BufferDesc.RefreshRate.Numerator = 60;
sd.BufferDesc.RefreshRate.Denominator = 1;
sd.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
sd.OutputWindow = hWnd;
sd.SampleDesc.Count = 1;
sd.SampleDesc.Quality = 0;
sd.Windowed = TRUE;
sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
UINT createDeviceFlags = 0;
//createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUG;
D3D_FEATURE_LEVEL featureLevel;
const D3D_FEATURE_LEVEL featureLevelArray[2] = { D3D_FEATURE_LEVEL_11_0, D3D_FEATURE_LEVEL_10_0, };
HRESULT res = D3D11CreateDeviceAndSwapChain(nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, createDeviceFlags, featureLevelArray, 2, D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice, &featureLevel, &g_pd3dDeviceContext);
if (res == DXGI_ERROR_UNSUPPORTED) // Try high-performance WARP software driver if hardware is not available.
res = D3D11CreateDeviceAndSwapChain(nullptr, D3D_DRIVER_TYPE_WARP, nullptr, createDeviceFlags, featureLevelArray, 2, D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice, &featureLevel, &g_pd3dDeviceContext);
if (res != S_OK)
return false;
CreateRenderTarget();
return true;
}
void CleanupDeviceD3D()
{
CleanupRenderTarget();
if (g_pSwapChain) { g_pSwapChain->Release(); g_pSwapChain = nullptr; }
if (g_pd3dDeviceContext) { g_pd3dDeviceContext->Release(); g_pd3dDeviceContext = nullptr; }
if (g_pd3dDevice) { g_pd3dDevice->Release(); g_pd3dDevice = nullptr; }
}
void CreateRenderTarget()
{
ID3D11Texture2D* pBackBuffer;
g_pSwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
g_pd3dDevice->CreateRenderTargetView(pBackBuffer, nullptr, &g_mainRenderTargetView);
pBackBuffer->Release();
}
void CleanupRenderTarget()
{
if (g_mainRenderTargetView) { g_mainRenderTargetView->Release(); g_mainRenderTargetView = nullptr; }
}
// Forward declare message handler from imgui_impl_win32.cpp
extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
// Win32 message handler
// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
if (ImGui_ImplWin32_WndProcHandler(hWnd, msg, wParam, lParam))
return true;
switch (msg)
{
case WM_SIZE:
if (wParam == SIZE_MINIMIZED)
return 0;
g_ResizeWidth = (UINT)LOWORD(lParam); // Queue resize
g_ResizeHeight = (UINT)HIWORD(lParam);
return 0;
case WM_SYSCOMMAND:
if ((wParam & 0xfff0) == SC_KEYMENU) // Disable ALT application menu
return 0;
break;
case WM_DESTROY:
::PostQuitMessage(0);
return 0;
}
return ::DefWindowProcW(hWnd, msg, wParam, lParam);
}