Examples: DirectX12: Merge, various styling tweaks, update for 1.60 wip, synchronized Win32 features with other examples. (#301)
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@ -123,11 +123,10 @@ Languages: (third-party bindinds)
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- Rust: [imgui-rs](https://github.com/Gekkio/imgui-rs)
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Frameworks:
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- DirectX 9, DirectX 10, DirectX 11: [examples/](https://github.com/ocornut/imgui/tree/master/examples)
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- DirectX 9, DirectX 10, DirectX 11, DirectX 12: [examples/](https://github.com/ocornut/imgui/tree/master/examples)
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- OpenGL 2/3 (with GLFW or SDL): [examples/](https://github.com/ocornut/imgui/tree/master/examples)
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- Vulkan (with GLFW): [examples/](https://github.com/ocornut/imgui/tree/master/examples)
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- Allegro 5, iOS, Marmalade: [examples/](https://github.com/ocornut/imgui/tree/master/examples)
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- Unmerged PR: DirectX12: [#301](https://github.com/ocornut/imgui/pull/301)
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- Unmerged PR: SDL2 + OpenGLES + Emscripten: [#336](https://github.com/ocornut/imgui/pull/336)
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- Unmerged PR: FreeGlut + OpenGL2: [#801](https://github.com/ocornut/imgui/pull/801)
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- Unmerged PR: Native Win32 and OSX: [#281](https://github.com/ocornut/imgui/pull/281)
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@ -4,8 +4,8 @@ Binaries of some of those demos: http://www.miracleworld.net/imgui/binaries
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Third party languages and frameworks bindings:
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https://github.com/ocornut/imgui/wiki/Links
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(languages: C, C#, ChaiScript, D, Go, Haxe, Odin, Python, Rust, Lua, Pascal)
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(frameworks: DX12, OpenGLES, FreeGlut, Cinder, Cocos2d-x, SFML, GML/GameMaker Studio, Irrlicht, Ogre,
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OpenSceneGraph, openFrameworks, LOVE, NanoRT, Qt3d, SFML, Unreal Engine 4, etc.)
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(other frameworks: OpenGLES, FreeGlut, Cinder, Cocos2d-x, SFML, GML/GameMaker Studio, Irrlicht,
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Ogre, OpenSceneGraph, openFrameworks, LOVE, NanoRT, Qt3d, SFML, Unreal Engine 4, etc.)
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(extras: RemoteImGui, ImWindow, imgui_wm, etc.)
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@ -21,7 +21,7 @@
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<PropertyGroup Label="Globals">
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<ProjectGuid>{b4cf9797-519d-4afe-a8f4-5141a6b521d3}</ProjectGuid>
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<RootNamespace>directx12_example</RootNamespace>
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<WindowsTargetPlatformVersion>10.0.10240.0</WindowsTargetPlatformVersion>
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<WindowsTargetPlatformVersion>10.0.16299.0</WindowsTargetPlatformVersion>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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@ -1,18 +1,43 @@
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// ImGui Win32 + DirectX12 binding
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// In this binding, ImTextureID is used to store a 'D3D12_GPU_DESCRIPTOR_HANDLE' texture identifier. Read the FAQ about ImTextureID in imgui.cpp.
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// FIXME: 64-bit only for now! (Because sizeof(ImTextureId) == sizeof(void*))
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// Implemented features:
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// [X] User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
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// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
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// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().
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// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
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// https://github.com/ocornut/imgui
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#include <imgui.h>
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// CHANGELOG
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// (minor and older changes stripped away, please see git history for details)
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// 2018-02-22: Merged into master with all Win32 code synchronized to other examples.
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#include "imgui.h"
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#include "imgui_impl_dx12.h"
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// DirectX
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#include <d3d12.h>
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#include <d3dcompiler.h>
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// Win32 data
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static HWND g_hWnd = 0;
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static INT64 g_Time = 0;
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static INT64 g_TicksPerSecond = 0;
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static ImGuiMouseCursor g_LastMouseCursor = ImGuiMouseCursor_Count_;
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// DirectX data
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static ID3D12Device* g_pd3dDevice = NULL;
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static ID3D12GraphicsCommandList* g_pd3dCommandList = NULL;
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static ID3D10Blob* g_pVertexShaderBlob = NULL;
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static ID3D10Blob* g_pPixelShaderBlob = NULL;
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static ID3D12RootSignature* g_pRootSignature = NULL;
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static ID3D12PipelineState* g_pPipelineState = NULL;
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static DXGI_FORMAT g_RTVFormat = DXGI_FORMAT_UNKNOWN;
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static ID3D12Resource* g_pFontTextureResource = NULL;
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static D3D12_CPU_DESCRIPTOR_HANDLE g_hFontSrvCpuDescHandle = {};
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static D3D12_GPU_DESCRIPTOR_HANDLE g_hFontSrvGpuDescHandle = {};
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struct FrameResources
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{
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ID3D12Resource* IB;
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@ -20,40 +45,21 @@ struct FrameResources
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int VertexBufferSize;
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int IndexBufferSize;
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};
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// Data
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static INT64 g_Time = 0;
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static INT64 g_TicksPerSecond = 0;
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static HWND g_hWnd = 0;
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static ID3D12Device* g_pd3dDevice = NULL;
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static ID3D12GraphicsCommandList* g_pd3dCommandList = NULL;
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static ID3D10Blob* g_pVertexShaderBlob = NULL;
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static ID3D10Blob* g_pPixelShaderBlob = NULL;
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static ID3D12RootSignature* g_pRootSignature = NULL;
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static ID3D12PipelineState* g_pPipelineState = NULL;
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static DXGI_FORMAT g_RTVFormat = DXGI_FORMAT_UNKNOWN;
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static ID3D12Resource* g_pFontTextureResource = NULL;
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static D3D12_CPU_DESCRIPTOR_HANDLE g_hFontSrvCpuDescHandle = {};
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static D3D12_GPU_DESCRIPTOR_HANDLE g_hFontSrvGpuDescHandle = {};
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static FrameResources* g_pFrameResources = NULL;
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static UINT g_numFramesInFlight = 0;
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static UINT g_frameIndex = UINT_MAX;
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static FrameResources* g_pFrameResources = NULL;
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static UINT g_numFramesInFlight = 0;
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static UINT g_frameIndex = UINT_MAX;
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struct VERTEX_CONSTANT_BUFFER
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{
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float mvp[4][4];
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};
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// This is the main rendering function that you have to implement and provide to ImGui (via setting up 'RenderDrawListsFn' in the ImGuiIO structure)
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// If text or lines are blurry when integrating ImGui in your engine:
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// - in your Render function, try translating your projection matrix by (0.5f,0.5f) or (0.375f,0.375f)
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void ImGui_ImplDX12_RenderDrawLists(ImDrawData* draw_data)
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// Render function
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// (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)
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void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data)
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{
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// NOTE: I'm assuming that this only get's called once per frame! If not,
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// we can't just re-allocate the IB or VB, we'll have to do a proper
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// allocator.
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// NOTE: I'm assuming that this only get's called once per frame!
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// If not, we can't just re-allocate the IB or VB, we'll have to do a proper allocator.
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g_frameIndex = g_frameIndex + 1;
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FrameResources* frameResources = &g_pFrameResources[g_frameIndex % g_numFramesInFlight];
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ID3D12Resource* g_pVB = frameResources->VB;
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@ -215,49 +221,106 @@ void ImGui_ImplDX12_RenderDrawLists(ImDrawData* draw_data)
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}
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}
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IMGUI_API LRESULT ImGui_ImplDX12_WndProcHandler(HWND, UINT msg, WPARAM wParam, LPARAM lParam)
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static void ImGui_ImplWin32_UpdateMouseCursor()
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{
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ImGuiIO& io = ImGui::GetIO();
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ImGuiMouseCursor imgui_cursor = io.MouseDrawCursor ? ImGuiMouseCursor_None : ImGui::GetMouseCursor();
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if (imgui_cursor == ImGuiMouseCursor_None)
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{
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// Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
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::SetCursor(NULL);
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}
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else
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{
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// Hardware cursor type
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LPTSTR win32_cursor = IDC_ARROW;
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switch (imgui_cursor)
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{
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case ImGuiMouseCursor_Arrow: win32_cursor = IDC_ARROW; break;
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case ImGuiMouseCursor_TextInput: win32_cursor = IDC_IBEAM; break;
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case ImGuiMouseCursor_ResizeAll: win32_cursor = IDC_SIZEALL; break;
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case ImGuiMouseCursor_ResizeEW: win32_cursor = IDC_SIZEWE; break;
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case ImGuiMouseCursor_ResizeNS: win32_cursor = IDC_SIZENS; break;
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case ImGuiMouseCursor_ResizeNESW: win32_cursor = IDC_SIZENESW; break;
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case ImGuiMouseCursor_ResizeNWSE: win32_cursor = IDC_SIZENWSE; break;
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}
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::SetCursor(::LoadCursor(NULL, win32_cursor));
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}
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}
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// Process Win32 mouse/keyboard inputs.
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// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
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// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application.
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// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application.
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// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
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// PS: In this Win32 handler, we use the capture API (GetCapture/SetCapture/ReleaseCapture) to be able to read mouse coordinations when dragging mouse outside of our window bounds.
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// PS: We treat DBLCLK messages as regular mouse down messages, so this code will work on windows classes that have the CS_DBLCLKS flag set. Our own example app code doesn't set this flag.
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IMGUI_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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if (ImGui::GetCurrentContext() == NULL)
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return 0;
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ImGuiIO& io = ImGui::GetIO();
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switch (msg)
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{
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case WM_LBUTTONDOWN:
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io.MouseDown[0] = true;
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return true;
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case WM_LBUTTONDOWN: case WM_LBUTTONDBLCLK:
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case WM_RBUTTONDOWN: case WM_RBUTTONDBLCLK:
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case WM_MBUTTONDOWN: case WM_MBUTTONDBLCLK:
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{
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int button = 0;
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if (msg == WM_LBUTTONDOWN || msg == WM_LBUTTONDBLCLK) button = 0;
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if (msg == WM_RBUTTONDOWN || msg == WM_RBUTTONDBLCLK) button = 1;
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if (msg == WM_MBUTTONDOWN || msg == WM_MBUTTONDBLCLK) button = 2;
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if (!ImGui::IsAnyMouseDown() && ::GetCapture() == NULL)
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::SetCapture(hwnd);
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io.MouseDown[button] = true;
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return 0;
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}
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case WM_LBUTTONUP:
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io.MouseDown[0] = false;
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return true;
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case WM_RBUTTONDOWN:
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io.MouseDown[1] = true;
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return true;
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case WM_RBUTTONUP:
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io.MouseDown[1] = false;
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return true;
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case WM_MBUTTONDOWN:
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io.MouseDown[2] = true;
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return true;
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case WM_MBUTTONUP:
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io.MouseDown[2] = false;
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return true;
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{
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int button = 0;
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if (msg == WM_LBUTTONUP) button = 0;
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if (msg == WM_RBUTTONUP) button = 1;
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if (msg == WM_MBUTTONUP) button = 2;
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io.MouseDown[button] = false;
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if (!ImGui::IsAnyMouseDown() && ::GetCapture() == hwnd)
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::ReleaseCapture();
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return 0;
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}
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case WM_MOUSEWHEEL:
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io.MouseWheel += GET_WHEEL_DELTA_WPARAM(wParam) > 0 ? +1.0f : -1.0f;
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return true;
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return 0;
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case WM_MOUSEHWHEEL:
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io.MouseWheelH += GET_WHEEL_DELTA_WPARAM(wParam) > 0 ? +1.0f : -1.0f;
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return 0;
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case WM_MOUSEMOVE:
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io.MousePos.x = (signed short)(lParam);
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io.MousePos.y = (signed short)(lParam >> 16);
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return true;
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return 0;
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case WM_KEYDOWN:
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case WM_SYSKEYDOWN:
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if (wParam < 256)
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io.KeysDown[wParam] = 1;
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return true;
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return 0;
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case WM_KEYUP:
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case WM_SYSKEYUP:
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if (wParam < 256)
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io.KeysDown[wParam] = 0;
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return true;
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return 0;
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case WM_CHAR:
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// You can also use ToAscii()+GetKeyboardState() to retrieve characters.
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if (wParam > 0 && wParam < 0x10000)
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io.AddInputCharacter((unsigned short)wParam);
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return true;
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return 0;
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case WM_SETCURSOR:
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if (LOWORD(lParam) == HTCLIENT)
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{
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ImGui_ImplWin32_UpdateMouseCursor();
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return 1;
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}
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return 0;
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}
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return 0;
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}
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@ -317,16 +380,14 @@ static void ImGui_ImplDX12_CreateFontsTexture()
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ID3D12Resource* uploadBuffer = NULL;
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HRESULT hr = g_pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc,
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D3D12_RESOURCE_STATE_GENERIC_READ, NULL, IID_PPV_ARGS(&uploadBuffer));
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assert(SUCCEEDED(hr));
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IM_ASSERT(SUCCEEDED(hr));
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void* mapped = NULL;
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D3D12_RANGE range = { 0, uploadSize };
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hr = uploadBuffer->Map(0, &range, &mapped);
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assert(SUCCEEDED(hr));
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for (int y = 0; y < height; ++y)
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{
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IM_ASSERT(SUCCEEDED(hr));
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for (int y = 0; y < height; y++)
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memcpy((void*) ((uintptr_t) mapped + y * uploadPitch), pixels + y * width * 4, width * 4);
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}
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uploadBuffer->Unmap(0, &range);
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D3D12_TEXTURE_COPY_LOCATION srcLocation = {};
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@ -353,10 +414,10 @@ static void ImGui_ImplDX12_CreateFontsTexture()
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ID3D12Fence* fence = NULL;
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hr = g_pd3dDevice->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&fence));
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assert(SUCCEEDED(hr));
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IM_ASSERT(SUCCEEDED(hr));
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HANDLE event = CreateEvent(0, 0, 0, 0);
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assert(event != NULL);
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IM_ASSERT(event != NULL);
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D3D12_COMMAND_QUEUE_DESC queueDesc = {};
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queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
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@ -365,25 +426,25 @@ static void ImGui_ImplDX12_CreateFontsTexture()
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ID3D12CommandQueue* cmdQueue = NULL;
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hr = g_pd3dDevice->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&cmdQueue));
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assert(SUCCEEDED(hr));
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IM_ASSERT(SUCCEEDED(hr));
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ID3D12CommandAllocator* cmdAlloc = NULL;
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hr = g_pd3dDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&cmdAlloc));
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assert(SUCCEEDED(hr));
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IM_ASSERT(SUCCEEDED(hr));
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ID3D12GraphicsCommandList* cmdList = NULL;
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hr = g_pd3dDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, cmdAlloc, NULL, IID_PPV_ARGS(&cmdList));
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assert(SUCCEEDED(hr));
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IM_ASSERT(SUCCEEDED(hr));
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cmdList->CopyTextureRegion(&dstLocation, 0, 0, 0, &srcLocation, NULL);
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cmdList->ResourceBarrier(1, &barrier);
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hr = cmdList->Close();
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assert(SUCCEEDED(hr));
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IM_ASSERT(SUCCEEDED(hr));
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cmdQueue->ExecuteCommandLists(1, (ID3D12CommandList* const*) &cmdList);
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hr = cmdQueue->Signal(fence, 1);
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assert(SUCCEEDED(hr));
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IM_ASSERT(SUCCEEDED(hr));
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fence->SetEventOnCompletion(1, event);
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WaitForSingleObject(event, INFINITE);
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@ -622,7 +683,7 @@ void ImGui_ImplDX12_InvalidateDeviceObjects()
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if (g_pRootSignature) { g_pRootSignature->Release(); g_pRootSignature = NULL; }
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if (g_pPipelineState) { g_pPipelineState->Release(); g_pPipelineState = NULL; }
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if (g_pFontTextureResource) { g_pFontTextureResource->Release(); g_pFontTextureResource = NULL; ImGui::GetIO().Fonts->TexID = NULL; } // We copied g_pFontTextureView to io.Fonts->TexID so let's clear that as well.
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for (UINT i = 0; i < g_numFramesInFlight; ++i)
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for (UINT i = 0; i < g_numFramesInFlight; i++)
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{
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if (g_pFrameResources[i].IB) { g_pFrameResources[i].IB->Release(); g_pFrameResources[i].IB = NULL; }
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if (g_pFrameResources[i].VB) { g_pFrameResources[i].VB->Release(); g_pFrameResources[i].VB = NULL; }
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@ -644,7 +705,7 @@ bool ImGui_ImplDX12_Init(void* hwnd, int num_frames_in_flight,
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g_numFramesInFlight = num_frames_in_flight;
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g_frameIndex = UINT_MAX;
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for (int i = 0; i < num_frames_in_flight; ++i)
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for (int i = 0; i < num_frames_in_flight; i++)
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{
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g_pFrameResources[i].IB = NULL;
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g_pFrameResources[i].VB = NULL;
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@ -667,8 +728,10 @@ bool ImGui_ImplDX12_Init(void* hwnd, int num_frames_in_flight,
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io.KeyMap[ImGuiKey_PageDown] = VK_NEXT;
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io.KeyMap[ImGuiKey_Home] = VK_HOME;
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io.KeyMap[ImGuiKey_End] = VK_END;
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io.KeyMap[ImGuiKey_Insert] = VK_INSERT;
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io.KeyMap[ImGuiKey_Delete] = VK_DELETE;
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io.KeyMap[ImGuiKey_Backspace] = VK_BACK;
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io.KeyMap[ImGuiKey_Space] = VK_SPACE;
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io.KeyMap[ImGuiKey_Enter] = VK_RETURN;
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io.KeyMap[ImGuiKey_Escape] = VK_ESCAPE;
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io.KeyMap[ImGuiKey_A] = 'A';
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@ -678,7 +741,6 @@ bool ImGui_ImplDX12_Init(void* hwnd, int num_frames_in_flight,
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io.KeyMap[ImGuiKey_Y] = 'Y';
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io.KeyMap[ImGuiKey_Z] = 'Z';
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io.RenderDrawListsFn = ImGui_ImplDX12_RenderDrawLists; // Alternatively you can set this to NULL and call ImGui::GetDrawData() after ImGui::Render() to get the same ImDrawData pointer.
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io.ImeWindowHandle = g_hWnd;
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return true;
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@ -687,7 +749,6 @@ bool ImGui_ImplDX12_Init(void* hwnd, int num_frames_in_flight,
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void ImGui_ImplDX12_Shutdown()
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{
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||||
ImGui_ImplDX12_InvalidateDeviceObjects();
|
||||
ImGui::Shutdown();
|
||||
delete[] g_pFrameResources;
|
||||
g_pd3dDevice = NULL;
|
||||
g_hWnd = (HWND)0;
|
||||
@ -737,10 +798,14 @@ void ImGui_ImplDX12_NewFrame(ID3D12GraphicsCommandList* command_list)
|
||||
SetCursorPos(pos.x, pos.y);
|
||||
}
|
||||
|
||||
// Hide OS mouse cursor if ImGui is drawing it
|
||||
if (io.MouseDrawCursor)
|
||||
SetCursor(NULL);
|
||||
// Update OS mouse cursor with the cursor requested by imgui
|
||||
ImGuiMouseCursor mouse_cursor = io.MouseDrawCursor ? ImGuiMouseCursor_None : ImGui::GetMouseCursor();
|
||||
if (g_LastMouseCursor != mouse_cursor)
|
||||
{
|
||||
g_LastMouseCursor = mouse_cursor;
|
||||
ImGui_ImplWin32_UpdateMouseCursor();
|
||||
}
|
||||
|
||||
// Start the frame
|
||||
// Start the frame. This call will update the io.WantCaptureMouse, io.WantCaptureKeyboard flag that you can use to dispatch inputs (or not) to your application.
|
||||
ImGui::NewFrame();
|
||||
}
|
||||
|
||||
@ -1,5 +1,8 @@
|
||||
// ImGui Win32 + DirectX12 binding
|
||||
// In this binding, ImTextureID is used to store a 'D3D12_GPU_DESCRIPTOR_HANDLE' texture identifier. Read the FAQ about ImTextureID in imgui.cpp.
|
||||
// FIXME: 64-bit only for now! (Because sizeof(ImTextureId) == sizeof(void*))
|
||||
|
||||
// Implemented features:
|
||||
// [X] User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
|
||||
|
||||
// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
|
||||
// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().
|
||||
@ -12,22 +15,18 @@ struct ID3D12GraphicsCommandList;
|
||||
struct D3D12_CPU_DESCRIPTOR_HANDLE;
|
||||
struct D3D12_GPU_DESCRIPTOR_HANDLE;
|
||||
|
||||
// cmdList is the command list that the implementation will use to render the
|
||||
// GUI.
|
||||
//
|
||||
// Before calling ImGui::Render(), caller must prepare cmdList by resetting it
|
||||
// and setting the appropriate render target and descriptor heap that contains
|
||||
// fontSrvCpuDescHandle/fontSrvGpuDescHandle.
|
||||
//
|
||||
// fontSrvCpuDescHandle and fontSrvGpuDescHandle are handles to a single SRV
|
||||
// descriptor to use for the internal font texture.
|
||||
IMGUI_API bool ImGui_ImplDX12_Init(void* hwnd, int numFramesInFlight,
|
||||
// cmd_list is the command list that the implementation will use to render imgui draw lists.
|
||||
// Before calling the render function, caller must prepare cmd_list by resetting it and setting the appropriate
|
||||
// render target and descriptor heap that contains font_srv_cpu_desc_handle/font_srv_gpu_desc_handle.
|
||||
// font_srv_cpu_desc_handle and font_srv_gpu_desc_handle are handles to a single SRV descriptor to use for the internal font texture.
|
||||
IMGUI_API bool ImGui_ImplDX12_Init(void* hwnd, int num_frames_in_flight,
|
||||
ID3D12Device* device,
|
||||
DXGI_FORMAT rtv_format,
|
||||
D3D12_CPU_DESCRIPTOR_HANDLE fontSrvCpuDescHandle,
|
||||
D3D12_GPU_DESCRIPTOR_HANDLE fontSrvGpuDescHandle);
|
||||
D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle,
|
||||
D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle);
|
||||
IMGUI_API void ImGui_ImplDX12_Shutdown();
|
||||
IMGUI_API void ImGui_ImplDX12_NewFrame(ID3D12GraphicsCommandList* cmdList);
|
||||
IMGUI_API void ImGui_ImplDX12_NewFrame(ID3D12GraphicsCommandList* cmd_list);
|
||||
IMGUI_API void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data);
|
||||
|
||||
// Use if you want to reset your rendering device without losing ImGui state.
|
||||
IMGUI_API void ImGui_ImplDX12_InvalidateDeviceObjects();
|
||||
@ -37,5 +36,5 @@ IMGUI_API bool ImGui_ImplDX12_CreateDeviceObjects();
|
||||
// You may or not need this for your implementation, but it can serve as reference for handling inputs.
|
||||
// Commented out to avoid dragging dependencies on <windows.h> types. You can copy the extern declaration in your code.
|
||||
/*
|
||||
IMGUI_API LRESULT ImGui_ImplDX12_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
|
||||
IMGUI_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
|
||||
*/
|
||||
|
||||
@ -1,19 +1,19 @@
|
||||
// ImGui - standalone example application for DirectX 11
|
||||
// ImGui - standalone example application for DirectX 12
|
||||
// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
|
||||
// FIXME: 64-bit only for now! (Because sizeof(ImTextureId) == sizeof(void*))
|
||||
|
||||
#include <imgui.h>
|
||||
#include "imgui.h"
|
||||
#include "imgui_impl_dx12.h"
|
||||
#include <d3d12.h>
|
||||
#include <dxgi1_4.h>
|
||||
#include <tchar.h>
|
||||
|
||||
#define D3D11_CREATE_DEVICE_DEBUG 2
|
||||
#define DX12_ENABLE_DEBUG_LAYER 0
|
||||
|
||||
struct FrameContext
|
||||
{
|
||||
ID3D12CommandAllocator* CommandAllocator;
|
||||
UINT64 FenceValue;
|
||||
bool FenceSignalled;
|
||||
};
|
||||
|
||||
// Data
|
||||
@ -29,7 +29,7 @@ static ID3D12CommandQueue* g_pd3dCommandQueue = NULL;
|
||||
static ID3D12GraphicsCommandList* g_pd3dCommandList = NULL;
|
||||
static ID3D12Fence* g_fence = NULL;
|
||||
static HANDLE g_fenceEvent = NULL;
|
||||
static UINT64 g_fenceLastSignalledValue = 0;
|
||||
static UINT64 g_fenceLastSignaledValue = 0;
|
||||
static IDXGISwapChain3* g_pSwapChain = NULL;
|
||||
static HANDLE g_hSwapChainWaitableObject = NULL;
|
||||
static ID3D12Resource* g_mainRenderTargetResource[NUM_BACK_BUFFERS] = {};
|
||||
@ -37,19 +37,11 @@ static D3D12_CPU_DESCRIPTOR_HANDLE g_mainRenderTargetDescriptor[NUM_BACK_BUFFER
|
||||
|
||||
void CreateRenderTarget()
|
||||
{
|
||||
DXGI_SWAP_CHAIN_DESC sd;
|
||||
g_pSwapChain->GetDesc(&sd);
|
||||
|
||||
// Create the render target
|
||||
ID3D12Resource* pBackBuffer;
|
||||
D3D12_RENDER_TARGET_VIEW_DESC render_target_view_desc;
|
||||
ZeroMemory(&render_target_view_desc, sizeof(render_target_view_desc));
|
||||
render_target_view_desc.Format = sd.BufferDesc.Format;
|
||||
render_target_view_desc.ViewDimension = D3D12_RTV_DIMENSION_TEXTURE2D;
|
||||
for (UINT i = 0; i < NUM_BACK_BUFFERS; ++i)
|
||||
for (UINT i = 0; i < NUM_BACK_BUFFERS; i++)
|
||||
{
|
||||
g_pSwapChain->GetBuffer(i, IID_PPV_ARGS(&pBackBuffer));
|
||||
g_pd3dDevice->CreateRenderTargetView(pBackBuffer, &render_target_view_desc, g_mainRenderTargetDescriptor[i]);
|
||||
g_pd3dDevice->CreateRenderTargetView(pBackBuffer, NULL, g_mainRenderTargetDescriptor[i]);
|
||||
g_mainRenderTargetResource[i] = pBackBuffer;
|
||||
}
|
||||
}
|
||||
@ -60,7 +52,7 @@ void WaitForLastSubmittedFrame()
|
||||
|
||||
UINT64 fenceValue = frameCtxt->FenceValue;
|
||||
if (fenceValue == 0)
|
||||
return; // no fence was signalled
|
||||
return; // No fence was signaled
|
||||
|
||||
frameCtxt->FenceValue = 0;
|
||||
if (g_fence->GetCompletedValue() >= fenceValue)
|
||||
@ -75,15 +67,12 @@ FrameContext* WaitForNextFrameResources()
|
||||
UINT nextFrameIndex = g_frameIndex + 1;
|
||||
g_frameIndex = nextFrameIndex;
|
||||
|
||||
HANDLE waitableObjects[] = {
|
||||
g_hSwapChainWaitableObject,
|
||||
NULL,
|
||||
};
|
||||
HANDLE waitableObjects[] = { g_hSwapChainWaitableObject, NULL };
|
||||
DWORD numWaitableObjects = 1;
|
||||
|
||||
FrameContext* frameCtxt = &g_frameContext[nextFrameIndex % NUM_FRAMES_IN_FLIGHT];
|
||||
UINT64 fenceValue = frameCtxt->FenceValue;
|
||||
if (fenceValue != 0) // means no fence was signalled
|
||||
if (fenceValue != 0) // means no fence was signaled
|
||||
{
|
||||
frameCtxt->FenceValue = 0;
|
||||
g_fence->SetEventOnCompletion(fenceValue, g_fenceEvent);
|
||||
@ -125,7 +114,7 @@ void CleanupRenderTarget()
|
||||
{
|
||||
WaitForLastSubmittedFrame();
|
||||
|
||||
for (UINT i = 0; i < NUM_BACK_BUFFERS; ++i)
|
||||
for (UINT i = 0; i < NUM_BACK_BUFFERS; i++)
|
||||
if (g_mainRenderTargetResource[i]) { g_mainRenderTargetResource[i]->Release(); g_mainRenderTargetResource[i] = NULL; }
|
||||
}
|
||||
|
||||
@ -149,11 +138,7 @@ HRESULT CreateDeviceD3D(HWND hWnd)
|
||||
sd.Stereo = FALSE;
|
||||
}
|
||||
|
||||
UINT createDeviceFlags = 0;
|
||||
//createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUG;
|
||||
D3D_FEATURE_LEVEL featureLevel;
|
||||
featureLevel = D3D_FEATURE_LEVEL_11_0;
|
||||
if (createDeviceFlags & D3D11_CREATE_DEVICE_DEBUG)
|
||||
if (DX12_ENABLE_DEBUG_LAYER)
|
||||
{
|
||||
ID3D12Debug* dx12Debug = NULL;
|
||||
if (SUCCEEDED(D3D12GetDebugInterface(IID_PPV_ARGS(&dx12Debug))))
|
||||
@ -162,6 +147,8 @@ HRESULT CreateDeviceD3D(HWND hWnd)
|
||||
dx12Debug->Release();
|
||||
}
|
||||
}
|
||||
|
||||
D3D_FEATURE_LEVEL featureLevel = D3D_FEATURE_LEVEL_11_0;
|
||||
if (D3D12CreateDevice(NULL, featureLevel, IID_PPV_ARGS(&g_pd3dDevice)) != S_OK)
|
||||
return E_FAIL;
|
||||
|
||||
@ -176,7 +163,8 @@ HRESULT CreateDeviceD3D(HWND hWnd)
|
||||
|
||||
SIZE_T rtvDescriptorSize = g_pd3dDevice->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
|
||||
D3D12_CPU_DESCRIPTOR_HANDLE rtvHandle = g_pd3dRtvDescHeap->GetCPUDescriptorHandleForHeapStart();
|
||||
for (UINT i = 0; i < NUM_BACK_BUFFERS; ++i) {
|
||||
for (UINT i = 0; i < NUM_BACK_BUFFERS; i++)
|
||||
{
|
||||
g_mainRenderTargetDescriptor[i] = rtvHandle;
|
||||
rtvHandle.ptr += rtvDescriptorSize;
|
||||
}
|
||||
@ -200,11 +188,9 @@ HRESULT CreateDeviceD3D(HWND hWnd)
|
||||
return E_FAIL;
|
||||
}
|
||||
|
||||
for (UINT i = 0; i < NUM_FRAMES_IN_FLIGHT; ++i)
|
||||
{
|
||||
for (UINT i = 0; i < NUM_FRAMES_IN_FLIGHT; i++)
|
||||
if (g_pd3dDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&g_frameContext[i].CommandAllocator)) != S_OK)
|
||||
return E_FAIL;
|
||||
}
|
||||
|
||||
if (g_pd3dDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, g_frameContext[0].CommandAllocator, NULL, IID_PPV_ARGS(&g_pd3dCommandList)) != S_OK ||
|
||||
g_pd3dCommandList->Close() != S_OK)
|
||||
@ -240,7 +226,7 @@ void CleanupDeviceD3D()
|
||||
CleanupRenderTarget();
|
||||
if (g_pSwapChain) { g_pSwapChain->Release(); g_pSwapChain = NULL; }
|
||||
if (g_hSwapChainWaitableObject != NULL) { CloseHandle(g_hSwapChainWaitableObject); }
|
||||
for (UINT i = 0; i < NUM_FRAMES_IN_FLIGHT; ++i)
|
||||
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; }
|
||||
@ -251,10 +237,10 @@ void CleanupDeviceD3D()
|
||||
if (g_pd3dDevice) { g_pd3dDevice->Release(); g_pd3dDevice = NULL; }
|
||||
}
|
||||
|
||||
extern LRESULT ImGui_ImplDX12_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
|
||||
extern LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
|
||||
LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
|
||||
{
|
||||
if (ImGui_ImplDX12_WndProcHandler(hWnd, msg, wParam, lParam))
|
||||
if (ImGui_ImplWin32_WndProcHandler(hWnd, msg, wParam, lParam))
|
||||
return true;
|
||||
|
||||
switch (msg)
|
||||
@ -283,7 +269,7 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
|
||||
int main(int, char**)
|
||||
{
|
||||
// Create application window
|
||||
WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, WndProc, 0L, 0L, GetModuleHandle(NULL), NULL, LoadCursor(NULL, IDC_ARROW), NULL, NULL, _T("ImGui Example"), NULL };
|
||||
WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, WndProc, 0L, 0L, GetModuleHandle(NULL), NULL, NULL, NULL, NULL, _T("ImGui Example"), NULL };
|
||||
RegisterClassEx(&wc);
|
||||
HWND hwnd = CreateWindow(_T("ImGui Example"), _T("ImGui DirectX12 Example"), WS_OVERLAPPEDWINDOW, 100, 100, 1280, 800, NULL, NULL, wc.hInstance, NULL);
|
||||
|
||||
@ -300,30 +286,46 @@ int main(int, char**)
|
||||
UpdateWindow(hwnd);
|
||||
|
||||
// Setup ImGui binding
|
||||
ImGui::CreateContext();
|
||||
ImGuiIO& io = ImGui::GetIO(); (void)io;
|
||||
//io.NavFlags |= ImGuiNavFlags_EnableKeyboard; // Enable Keyboard Controls
|
||||
ImGui_ImplDX12_Init(hwnd, NUM_FRAMES_IN_FLIGHT, g_pd3dDevice,
|
||||
DXGI_FORMAT_R8G8B8A8_UNORM,
|
||||
g_pd3dSrvDescHeap->GetCPUDescriptorHandleForHeapStart(),
|
||||
g_pd3dSrvDescHeap->GetGPUDescriptorHandleForHeapStart());
|
||||
|
||||
// Load Fonts
|
||||
// (there is a default font, this is only if you want to change it. see extra_fonts/README.txt for more details)
|
||||
//ImGuiIO& io = ImGui::GetIO();
|
||||
//io.Fonts->AddFontDefault();
|
||||
//io.Fonts->AddFontFromFileTTF("../../extra_fonts/Cousine-Regular.ttf", 15.0f);
|
||||
//io.Fonts->AddFontFromFileTTF("../../extra_fonts/DroidSans.ttf", 16.0f);
|
||||
//io.Fonts->AddFontFromFileTTF("../../extra_fonts/ProggyClean.ttf", 13.0f);
|
||||
//io.Fonts->AddFontFromFileTTF("../../extra_fonts/ProggyTiny.ttf", 10.0f);
|
||||
//io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese());
|
||||
// Setup style
|
||||
ImGui::StyleColorsDark();
|
||||
//ImGui::StyleColorsClassic();
|
||||
|
||||
bool show_test_window = true;
|
||||
// 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).
|
||||
// - 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.
|
||||
// - Read 'misc/fonts/README.txt' 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("../../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);
|
||||
|
||||
bool show_demo_window = true;
|
||||
bool show_another_window = false;
|
||||
ImVec4 clear_col = ImColor(114, 144, 154);
|
||||
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)
|
||||
{
|
||||
// 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))
|
||||
{
|
||||
TranslateMessage(&msg);
|
||||
@ -332,31 +334,41 @@ int main(int, char**)
|
||||
}
|
||||
ImGui_ImplDX12_NewFrame(g_pd3dCommandList);
|
||||
|
||||
// 1. Show a simple window
|
||||
// Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug"
|
||||
// 1. Show a simple window.
|
||||
// Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
|
||||
{
|
||||
static float f = 0.0f;
|
||||
ImGui::Text("Hello, world!");
|
||||
ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
|
||||
ImGui::ColorEdit3("clear color", (float*)&clear_col);
|
||||
if (ImGui::Button("Test Window")) show_test_window ^= 1;
|
||||
if (ImGui::Button("Another Window")) show_another_window ^= 1;
|
||||
static int counter = 0;
|
||||
ImGui::Text("Hello, world!"); // Display some text (you can use a format string too)
|
||||
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
|
||||
|
||||
ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our windows open/close state
|
||||
ImGui::Checkbox("Another Window", &show_another_window);
|
||||
|
||||
if (ImGui::Button("Button")) // Buttons return true when clicked (NB: 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 / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
|
||||
}
|
||||
|
||||
// 2. Show another simple window, this time using an explicit Begin/End pair
|
||||
// 2. Show another simple window. In most cases you will use an explicit Begin/End pair to name your windows.
|
||||
if (show_another_window)
|
||||
{
|
||||
ImGui::Begin("Another Window", &show_another_window);
|
||||
ImGui::Text("Hello from another window!");
|
||||
if (ImGui::Button("Close Me"))
|
||||
show_another_window = false;
|
||||
ImGui::End();
|
||||
}
|
||||
|
||||
// 3. Show the ImGui test window. Most of the sample code is in ImGui::ShowTestWindow()
|
||||
if (show_test_window)
|
||||
// 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow(). Read its code to learn more about Dear ImGui!
|
||||
if (show_demo_window)
|
||||
{
|
||||
ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call it because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
|
||||
ImGui::ShowTestWindow(&show_test_window);
|
||||
ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
|
||||
ImGui::ShowDemoWindow(&show_demo_window);
|
||||
}
|
||||
|
||||
// Rendering
|
||||
@ -374,10 +386,11 @@ int main(int, char**)
|
||||
|
||||
g_pd3dCommandList->Reset(frameCtxt->CommandAllocator, NULL);
|
||||
g_pd3dCommandList->ResourceBarrier(1, &barrier);
|
||||
g_pd3dCommandList->ClearRenderTargetView(g_mainRenderTargetDescriptor[backBufferIdx], (float*)&clear_col, 0, NULL);
|
||||
g_pd3dCommandList->ClearRenderTargetView(g_mainRenderTargetDescriptor[backBufferIdx], (float*)&clear_color, 0, NULL);
|
||||
g_pd3dCommandList->OMSetRenderTargets(1, &g_mainRenderTargetDescriptor[backBufferIdx], FALSE, NULL);
|
||||
g_pd3dCommandList->SetDescriptorHeaps(1, &g_pd3dSrvDescHeap);
|
||||
ImGui::Render();
|
||||
ImGui_ImplDX12_RenderDrawData(ImGui::GetDrawData());
|
||||
barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_RENDER_TARGET;
|
||||
barrier.Transition.StateAfter = D3D12_RESOURCE_STATE_PRESENT;
|
||||
g_pd3dCommandList->ResourceBarrier(1, &barrier);
|
||||
@ -388,13 +401,15 @@ int main(int, char**)
|
||||
g_pSwapChain->Present(1, 0); // Present with vsync
|
||||
//g_pSwapChain->Present(0, 0); // Present without vsync
|
||||
|
||||
auto fenceValue = g_fenceLastSignalledValue + 1;
|
||||
UINT64 fenceValue = g_fenceLastSignaledValue + 1;
|
||||
g_pd3dCommandQueue->Signal(g_fence, fenceValue);
|
||||
g_fenceLastSignalledValue = fenceValue;
|
||||
g_fenceLastSignaledValue = fenceValue;
|
||||
frameCtxt->FenceValue = fenceValue;
|
||||
}
|
||||
|
||||
ImGui_ImplDX12_Shutdown();
|
||||
ImGui::DestroyContext();
|
||||
|
||||
CleanupDeviceD3D();
|
||||
UnregisterClass(_T("ImGui Example"), wc.hInstance);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user