Add ImGui bindings to Lua

This commit is contained in:
wheremyfoodat 2025-02-11 21:41:16 +02:00
parent da797831ba
commit d29e76da8c
212 changed files with 49453 additions and 21919 deletions

View file

@ -6,4 +6,4 @@
@set SOURCES=main.cpp ..\..\backends\imgui_impl_dx12.cpp ..\..\backends\imgui_impl_win32.cpp ..\..\imgui*.cpp
@set LIBS=d3d12.lib d3dcompiler.lib dxgi.lib
mkdir Debug
cl /nologo /Zi /MD %INCLUDES% /D ImTextureID=ImU64 /D UNICODE /D _UNICODE %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS%
cl /nologo /Zi /MD /utf-8 %INCLUDES% /D ImTextureID=ImU64 /D UNICODE /D _UNICODE %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS%

View file

@ -21,7 +21,7 @@
<PropertyGroup Label="Globals">
<ProjectGuid>{b4cf9797-519d-4afe-a8f4-5141a6b521d3}</ProjectGuid>
<RootNamespace>example_win32_directx12</RootNamespace>
<WindowsTargetPlatformVersion>10.0.14393.0</WindowsTargetPlatformVersion>
<WindowsTargetPlatformVersion>10.0.18362.0</WindowsTargetPlatformVersion>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
@ -88,6 +88,7 @@
<Optimization>Disabled</Optimization>
<AdditionalIncludeDirectories>..\..;..\..\backends;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PreprocessorDefinitions>ImTextureID=ImU64;_UNICODE;UNICODE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
</ClCompile>
<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
@ -102,6 +103,7 @@
<Optimization>Disabled</Optimization>
<AdditionalIncludeDirectories>..\..;..\..\backends;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PreprocessorDefinitions>ImTextureID=ImU64;_UNICODE;UNICODE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
</ClCompile>
<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
@ -118,6 +120,7 @@
<IntrinsicFunctions>true</IntrinsicFunctions>
<AdditionalIncludeDirectories>..\..;..\..\backends;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PreprocessorDefinitions>ImTextureID=ImU64;_UNICODE;UNICODE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
</ClCompile>
<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
@ -136,6 +139,7 @@
<IntrinsicFunctions>true</IntrinsicFunctions>
<AdditionalIncludeDirectories>..\..;..\..\backends;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PreprocessorDefinitions>ImTextureID=ImU64;_UNICODE;UNICODE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
</ClCompile>
<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
@ -164,9 +168,13 @@
<ClCompile Include="main.cpp" />
</ItemGroup>
<ItemGroup>
<None Include="..\..\misc\debuggers\imgui.natstepfilter" />
<None Include="..\README.txt" />
</ItemGroup>
<ItemGroup>
<Natvis Include="..\..\misc\debuggers\imgui.natvis" />
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>
</Project>

View file

@ -53,5 +53,13 @@
</ItemGroup>
<ItemGroup>
<None Include="..\README.txt" />
<None Include="..\..\misc\debuggers\imgui.natstepfilter">
<Filter>imgui</Filter>
</None>
</ItemGroup>
</Project>
<ItemGroup>
<Natvis Include="..\..\misc\debuggers\imgui.natvis">
<Filter>imgui</Filter>
</Natvis>
</ItemGroup>
</Project>

View file

@ -1,6 +1,10 @@
// Dear ImGui: standalone example application for DirectX 12
// 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
// 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
// Important: to compile on 32-bit systems, the DirectX12 backend requires code to be compiled with '#define ImTextureID ImU64'.
// This is because we need ImTextureID to carry a 64-bit value and by default ImTextureID is defined as void*.
@ -34,16 +38,16 @@ static FrameContext g_frameContext[NUM_FRAMES_IN_FLIGHT] = {};
static UINT g_frameIndex = 0;
static int const NUM_BACK_BUFFERS = 3;
static ID3D12Device* g_pd3dDevice = NULL;
static ID3D12DescriptorHeap* g_pd3dRtvDescHeap = NULL;
static ID3D12DescriptorHeap* g_pd3dSrvDescHeap = NULL;
static ID3D12CommandQueue* g_pd3dCommandQueue = NULL;
static ID3D12GraphicsCommandList* g_pd3dCommandList = NULL;
static ID3D12Fence* g_fence = NULL;
static HANDLE g_fenceEvent = NULL;
static ID3D12Device* g_pd3dDevice = nullptr;
static ID3D12DescriptorHeap* g_pd3dRtvDescHeap = nullptr;
static ID3D12DescriptorHeap* g_pd3dSrvDescHeap = nullptr;
static ID3D12CommandQueue* g_pd3dCommandQueue = nullptr;
static ID3D12GraphicsCommandList* g_pd3dCommandList = nullptr;
static ID3D12Fence* g_fence = nullptr;
static HANDLE g_fenceEvent = nullptr;
static UINT64 g_fenceLastSignaledValue = 0;
static IDXGISwapChain3* g_pSwapChain = NULL;
static HANDLE g_hSwapChainWaitableObject = NULL;
static IDXGISwapChain3* g_pSwapChain = nullptr;
static HANDLE g_hSwapChainWaitableObject = nullptr;
static ID3D12Resource* g_mainRenderTargetResource[NUM_BACK_BUFFERS] = {};
static D3D12_CPU_DESCRIPTOR_HANDLE g_mainRenderTargetDescriptor[NUM_BACK_BUFFERS] = {};
@ -54,7 +58,6 @@ void CreateRenderTarget();
void CleanupRenderTarget();
void WaitForLastSubmittedFrame();
FrameContext* WaitForNextFrameResources();
void ResizeSwapChain(HWND hWnd, int width, int height);
LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
// Main code
@ -62,15 +65,15 @@ int main(int, char**)
{
// Create application window
//ImGui_ImplWin32_EnableDpiAwareness();
WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, WndProc, 0L, 0L, GetModuleHandle(NULL), NULL, NULL, NULL, NULL, _T("ImGui Example"), NULL };
::RegisterClassEx(&wc);
HWND hwnd = ::CreateWindow(wc.lpszClassName, _T("Dear ImGui DirectX12 Example"), WS_OVERLAPPEDWINDOW, 100, 100, 1280, 800, NULL, NULL, wc.hInstance, NULL);
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 DirectX12 Example", WS_OVERLAPPEDWINDOW, 100, 100, 1280, 800, nullptr, nullptr, wc.hInstance, nullptr);
// Initialize Direct3D
if (!CreateDeviceD3D(hwnd))
{
CleanupDeviceD3D();
::UnregisterClass(wc.lpszClassName, wc.hInstance);
::UnregisterClassW(wc.lpszClassName, wc.hInstance);
return 1;
}
@ -82,12 +85,24 @@ int main(int, char**)
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
//io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
//io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
io.ConfigFlags |= ImGuiConfigFlags_DockingEnable; // Enable Docking
io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable; // Enable Multi-Viewport / Platform Windows
//io.ConfigViewportsNoAutoMerge = true;
//io.ConfigViewportsNoTaskBarIcon = true;
// Setup Dear ImGui style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();
//ImGui::StyleColorsLight();
// When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
ImGuiStyle& style = ImGui::GetStyle();
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
style.WindowRounding = 0.0f;
style.Colors[ImGuiCol_WindowBg].w = 1.0f;
}
// Setup Platform/Renderer backends
ImGui_ImplWin32_Init(hwnd);
@ -99,17 +114,18 @@ int main(int, char**)
// 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 NULL. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
// - 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);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/ProggyTiny.ttf", 10.0f);
//ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese());
//IM_ASSERT(font != NULL);
//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;
@ -117,21 +133,21 @@ int main(int, char**)
ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
// Main loop
MSG msg;
ZeroMemory(&msg, sizeof(msg));
while (msg.message != WM_QUIT)
bool done = false;
while (!done)
{
// Poll and handle messages (inputs, window resize, etc.)
// 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.
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application.
// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
if (::PeekMessage(&msg, NULL, 0U, 0U, PM_REMOVE))
// 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);
continue;
if (msg.message == WM_QUIT)
done = true;
}
if (done)
break;
// Start the Dear ImGui frame
ImGui_ImplDX12_NewFrame();
@ -142,7 +158,7 @@ int main(int, char**)
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 created a named 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;
@ -161,7 +177,7 @@ int main(int, char**)
ImGui::SameLine();
ImGui::Text("counter = %d", counter);
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
ImGui::End();
}
@ -189,13 +205,13 @@ int main(int, char**)
barrier.Transition.Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_PRESENT;
barrier.Transition.StateAfter = D3D12_RESOURCE_STATE_RENDER_TARGET;
g_pd3dCommandList->Reset(frameCtx->CommandAllocator, NULL);
g_pd3dCommandList->Reset(frameCtx->CommandAllocator, nullptr);
g_pd3dCommandList->ResourceBarrier(1, &barrier);
// Render Dear ImGui graphics
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_pd3dCommandList->ClearRenderTargetView(g_mainRenderTargetDescriptor[backBufferIdx], clear_color_with_alpha, 0, NULL);
g_pd3dCommandList->OMSetRenderTargets(1, &g_mainRenderTargetDescriptor[backBufferIdx], FALSE, NULL);
g_pd3dCommandList->ClearRenderTargetView(g_mainRenderTargetDescriptor[backBufferIdx], clear_color_with_alpha, 0, nullptr);
g_pd3dCommandList->OMSetRenderTargets(1, &g_mainRenderTargetDescriptor[backBufferIdx], FALSE, nullptr);
g_pd3dCommandList->SetDescriptorHeaps(1, &g_pd3dSrvDescHeap);
ImGui_ImplDX12_RenderDrawData(ImGui::GetDrawData(), g_pd3dCommandList);
barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_RENDER_TARGET;
@ -205,6 +221,13 @@ int main(int, char**)
g_pd3dCommandQueue->ExecuteCommandLists(1, (ID3D12CommandList* const*)&g_pd3dCommandList);
// Update and Render additional Platform Windows
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
ImGui::UpdatePlatformWindows();
ImGui::RenderPlatformWindowsDefault(nullptr, (void*)g_pd3dCommandList);
}
g_pSwapChain->Present(1, 0); // Present with vsync
//g_pSwapChain->Present(0, 0); // Present without vsync
@ -223,13 +246,12 @@ int main(int, char**)
CleanupDeviceD3D();
::DestroyWindow(hwnd);
::UnregisterClass(wc.lpszClassName, wc.hInstance);
::UnregisterClassW(wc.lpszClassName, wc.hInstance);
return 0;
}
// Helper functions
bool CreateDeviceD3D(HWND hWnd)
{
// Setup swap chain
@ -252,21 +274,21 @@ bool CreateDeviceD3D(HWND hWnd)
// [DEBUG] Enable debug interface
#ifdef DX12_ENABLE_DEBUG_LAYER
ID3D12Debug* pdx12Debug = NULL;
ID3D12Debug* pdx12Debug = nullptr;
if (SUCCEEDED(D3D12GetDebugInterface(IID_PPV_ARGS(&pdx12Debug))))
pdx12Debug->EnableDebugLayer();
#endif
// Create device
D3D_FEATURE_LEVEL featureLevel = D3D_FEATURE_LEVEL_11_0;
if (D3D12CreateDevice(NULL, featureLevel, IID_PPV_ARGS(&g_pd3dDevice)) != S_OK)
if (D3D12CreateDevice(nullptr, featureLevel, IID_PPV_ARGS(&g_pd3dDevice)) != S_OK)
return false;
// [DEBUG] Setup debug interface to break on any warnings/errors
#ifdef DX12_ENABLE_DEBUG_LAYER
if (pdx12Debug != NULL)
if (pdx12Debug != nullptr)
{
ID3D12InfoQueue* pInfoQueue = NULL;
ID3D12InfoQueue* pInfoQueue = nullptr;
g_pd3dDevice->QueryInterface(IID_PPV_ARGS(&pInfoQueue));
pInfoQueue->SetBreakOnSeverity(D3D12_MESSAGE_SEVERITY_ERROR, true);
pInfoQueue->SetBreakOnSeverity(D3D12_MESSAGE_SEVERITY_CORRUPTION, true);
@ -316,23 +338,23 @@ bool CreateDeviceD3D(HWND hWnd)
if (g_pd3dDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&g_frameContext[i].CommandAllocator)) != S_OK)
return false;
if (g_pd3dDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, g_frameContext[0].CommandAllocator, NULL, IID_PPV_ARGS(&g_pd3dCommandList)) != S_OK ||
if (g_pd3dDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, g_frameContext[0].CommandAllocator, nullptr, IID_PPV_ARGS(&g_pd3dCommandList)) != S_OK ||
g_pd3dCommandList->Close() != S_OK)
return false;
if (g_pd3dDevice->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&g_fence)) != S_OK)
return false;
g_fenceEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
if (g_fenceEvent == NULL)
g_fenceEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
if (g_fenceEvent == nullptr)
return false;
{
IDXGIFactory4* dxgiFactory = NULL;
IDXGISwapChain1* swapChain1 = NULL;
IDXGIFactory4* dxgiFactory = nullptr;
IDXGISwapChain1* swapChain1 = nullptr;
if (CreateDXGIFactory1(IID_PPV_ARGS(&dxgiFactory)) != S_OK)
return false;
if (dxgiFactory->CreateSwapChainForHwnd(g_pd3dCommandQueue, hWnd, &sd, NULL, NULL, &swapChain1) != S_OK)
if (dxgiFactory->CreateSwapChainForHwnd(g_pd3dCommandQueue, hWnd, &sd, nullptr, nullptr, &swapChain1) != S_OK)
return false;
if (swapChain1->QueryInterface(IID_PPV_ARGS(&g_pSwapChain)) != S_OK)
return false;
@ -349,20 +371,20 @@ bool CreateDeviceD3D(HWND hWnd)
void CleanupDeviceD3D()
{
CleanupRenderTarget();
if (g_pSwapChain) { g_pSwapChain->Release(); g_pSwapChain = NULL; }
if (g_hSwapChainWaitableObject != NULL) { CloseHandle(g_hSwapChainWaitableObject); }
if (g_pSwapChain) { g_pSwapChain->SetFullscreenState(false, nullptr); g_pSwapChain->Release(); g_pSwapChain = nullptr; }
if (g_hSwapChainWaitableObject != nullptr) { CloseHandle(g_hSwapChainWaitableObject); }
for (UINT i = 0; i < NUM_FRAMES_IN_FLIGHT; i++)
if (g_frameContext[i].CommandAllocator) { g_frameContext[i].CommandAllocator->Release(); g_frameContext[i].CommandAllocator = NULL; }
if (g_pd3dCommandQueue) { g_pd3dCommandQueue->Release(); g_pd3dCommandQueue = NULL; }
if (g_pd3dCommandList) { g_pd3dCommandList->Release(); g_pd3dCommandList = NULL; }
if (g_pd3dRtvDescHeap) { g_pd3dRtvDescHeap->Release(); g_pd3dRtvDescHeap = NULL; }
if (g_pd3dSrvDescHeap) { g_pd3dSrvDescHeap->Release(); g_pd3dSrvDescHeap = NULL; }
if (g_fence) { g_fence->Release(); g_fence = NULL; }
if (g_fenceEvent) { CloseHandle(g_fenceEvent); g_fenceEvent = NULL; }
if (g_pd3dDevice) { g_pd3dDevice->Release(); g_pd3dDevice = NULL; }
if (g_frameContext[i].CommandAllocator) { g_frameContext[i].CommandAllocator->Release(); g_frameContext[i].CommandAllocator = nullptr; }
if (g_pd3dCommandQueue) { g_pd3dCommandQueue->Release(); g_pd3dCommandQueue = nullptr; }
if (g_pd3dCommandList) { g_pd3dCommandList->Release(); g_pd3dCommandList = nullptr; }
if (g_pd3dRtvDescHeap) { g_pd3dRtvDescHeap->Release(); g_pd3dRtvDescHeap = nullptr; }
if (g_pd3dSrvDescHeap) { g_pd3dSrvDescHeap->Release(); g_pd3dSrvDescHeap = nullptr; }
if (g_fence) { g_fence->Release(); g_fence = nullptr; }
if (g_fenceEvent) { CloseHandle(g_fenceEvent); g_fenceEvent = nullptr; }
if (g_pd3dDevice) { g_pd3dDevice->Release(); g_pd3dDevice = nullptr; }
#ifdef DX12_ENABLE_DEBUG_LAYER
IDXGIDebug1* pDebug = NULL;
IDXGIDebug1* pDebug = nullptr;
if (SUCCEEDED(DXGIGetDebugInterface1(0, IID_PPV_ARGS(&pDebug))))
{
pDebug->ReportLiveObjects(DXGI_DEBUG_ALL, DXGI_DEBUG_RLO_SUMMARY);
@ -375,9 +397,9 @@ void CreateRenderTarget()
{
for (UINT i = 0; i < NUM_BACK_BUFFERS; i++)
{
ID3D12Resource* pBackBuffer = NULL;
ID3D12Resource* pBackBuffer = nullptr;
g_pSwapChain->GetBuffer(i, IID_PPV_ARGS(&pBackBuffer));
g_pd3dDevice->CreateRenderTargetView(pBackBuffer, NULL, g_mainRenderTargetDescriptor[i]);
g_pd3dDevice->CreateRenderTargetView(pBackBuffer, nullptr, g_mainRenderTargetDescriptor[i]);
g_mainRenderTargetResource[i] = pBackBuffer;
}
}
@ -387,7 +409,7 @@ void CleanupRenderTarget()
WaitForLastSubmittedFrame();
for (UINT i = 0; i < NUM_BACK_BUFFERS; i++)
if (g_mainRenderTargetResource[i]) { g_mainRenderTargetResource[i]->Release(); g_mainRenderTargetResource[i] = NULL; }
if (g_mainRenderTargetResource[i]) { g_mainRenderTargetResource[i]->Release(); g_mainRenderTargetResource[i] = nullptr; }
}
void WaitForLastSubmittedFrame()
@ -411,7 +433,7 @@ FrameContext* WaitForNextFrameResources()
UINT nextFrameIndex = g_frameIndex + 1;
g_frameIndex = nextFrameIndex;
HANDLE waitableObjects[] = { g_hSwapChainWaitableObject, NULL };
HANDLE waitableObjects[] = { g_hSwapChainWaitableObject, nullptr };
DWORD numWaitableObjects = 1;
FrameContext* frameCtx = &g_frameContext[nextFrameIndex % NUM_FRAMES_IN_FLIGHT];
@ -429,35 +451,14 @@ FrameContext* WaitForNextFrameResources()
return frameCtx;
}
void ResizeSwapChain(HWND hWnd, int width, int height)
{
DXGI_SWAP_CHAIN_DESC1 sd;
g_pSwapChain->GetDesc1(&sd);
sd.Width = width;
sd.Height = height;
IDXGIFactory4* dxgiFactory = NULL;
g_pSwapChain->GetParent(IID_PPV_ARGS(&dxgiFactory));
g_pSwapChain->Release();
CloseHandle(g_hSwapChainWaitableObject);
IDXGISwapChain1* swapChain1 = NULL;
dxgiFactory->CreateSwapChainForHwnd(g_pd3dCommandQueue, hWnd, &sd, NULL, NULL, &swapChain1);
swapChain1->QueryInterface(IID_PPV_ARGS(&g_pSwapChain));
swapChain1->Release();
dxgiFactory->Release();
g_pSwapChain->SetMaximumFrameLatency(NUM_BACK_BUFFERS);
g_hSwapChainWaitableObject = g_pSwapChain->GetFrameLatencyWaitableObject();
assert(g_hSwapChainWaitableObject != NULL);
}
// 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))
@ -466,14 +467,13 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
switch (msg)
{
case WM_SIZE:
if (g_pd3dDevice != NULL && wParam != SIZE_MINIMIZED)
if (g_pd3dDevice != nullptr && wParam != SIZE_MINIMIZED)
{
WaitForLastSubmittedFrame();
ImGui_ImplDX12_InvalidateDeviceObjects();
CleanupRenderTarget();
ResizeSwapChain(hWnd, (UINT)LOWORD(lParam), (UINT)HIWORD(lParam));
HRESULT result = g_pSwapChain->ResizeBuffers(0, (UINT)LOWORD(lParam), (UINT)HIWORD(lParam), DXGI_FORMAT_UNKNOWN, DXGI_SWAP_CHAIN_FLAG_FRAME_LATENCY_WAITABLE_OBJECT);
assert(SUCCEEDED(result) && "Failed to resize swapchain.");
CreateRenderTarget();
ImGui_ImplDX12_CreateDeviceObjects();
}
return 0;
case WM_SYSCOMMAND:
@ -484,5 +484,5 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
::PostQuitMessage(0);
return 0;
}
return ::DefWindowProc(hWnd, msg, wParam, lParam);
return ::DefWindowProcW(hWnd, msg, wParam, lParam);
}