From ffda84cfae66b3654cf379008036a04ce798ddd4 Mon Sep 17 00:00:00 2001 From: omar Date: Fri, 23 Feb 2018 10:56:06 +0100 Subject: [PATCH] Examples: DirectX12: Merged to new example format, imgui_impl_dx12.cpp contains the DX12 stuff, couple with imgui_impl_win32.cpp --- .../directx12_example.vcxproj | 6 +- .../directx12_example.vcxproj.filters | 18 +- examples/directx12_example/main.cpp | 12 +- .../imgui_impl_dx12.cpp | 191 +----------------- .../{directx12_example => }/imgui_impl_dx12.h | 24 +-- 5 files changed, 32 insertions(+), 219 deletions(-) rename examples/{directx12_example => }/imgui_impl_dx12.cpp (77%) rename examples/{directx12_example => }/imgui_impl_dx12.h (54%) diff --git a/examples/directx12_example/directx12_example.vcxproj b/examples/directx12_example/directx12_example.vcxproj index d3962a31..1ee7e343 100644 --- a/examples/directx12_example/directx12_example.vcxproj +++ b/examples/directx12_example/directx12_example.vcxproj @@ -146,13 +146,15 @@ - + + - + + diff --git a/examples/directx12_example/directx12_example.vcxproj.filters b/examples/directx12_example/directx12_example.vcxproj.filters index 6baac598..43fdebab 100644 --- a/examples/directx12_example/directx12_example.vcxproj.filters +++ b/examples/directx12_example/directx12_example.vcxproj.filters @@ -15,12 +15,15 @@ imgui - - sources - imgui + + sources + + + sources + @@ -29,15 +32,18 @@ sources - - sources - imgui imgui + + sources + + + sources + diff --git a/examples/directx12_example/main.cpp b/examples/directx12_example/main.cpp index 6a4b78d8..e6d19b8f 100644 --- a/examples/directx12_example/main.cpp +++ b/examples/directx12_example/main.cpp @@ -3,7 +3,8 @@ // FIXME: 64-bit only for now! (Because sizeof(ImTextureId) == sizeof(void*)) #include "imgui.h" -#include "imgui_impl_dx12.h" +#include "../imgui_impl_win32.h" +#include "../imgui_impl_dx12.h" #include #include #include @@ -289,10 +290,9 @@ int main(int, char**) 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()); + ImGui_ImplWin32_Init(hwnd); + ImGui_ImplDX12_Init(g_pd3dDevice, NUM_FRAMES_IN_FLIGHT, DXGI_FORMAT_R8G8B8A8_UNORM, + g_pd3dSrvDescHeap->GetCPUDescriptorHandleForHeapStart(), g_pd3dSrvDescHeap->GetGPUDescriptorHandleForHeapStart()); // Setup style ImGui::StyleColorsDark(); @@ -333,6 +333,7 @@ int main(int, char**) continue; } ImGui_ImplDX12_NewFrame(g_pd3dCommandList); + ImGui_ImplWin32_NewFrame(); // 1. Show a simple window. // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug". @@ -409,6 +410,7 @@ int main(int, char**) WaitForLastSubmittedFrame(); ImGui_ImplDX12_Shutdown(); + ImGui_ImplWin32_Shutdown(); ImGui::DestroyContext(); CleanupDeviceD3D(); UnregisterClass(_T("ImGui Example"), wc.hInstance); diff --git a/examples/directx12_example/imgui_impl_dx12.cpp b/examples/imgui_impl_dx12.cpp similarity index 77% rename from examples/directx12_example/imgui_impl_dx12.cpp rename to examples/imgui_impl_dx12.cpp index beb48b9c..65692a38 100644 --- a/examples/directx12_example/imgui_impl_dx12.cpp +++ b/examples/imgui_impl_dx12.cpp @@ -20,12 +20,6 @@ #include #include -// Win32 data -static HWND g_hWnd = 0; -static INT64 g_Time = 0; -static INT64 g_TicksPerSecond = 0; -static ImGuiMouseCursor g_LastMouseCursor = ImGuiMouseCursor_Count_; - // DirectX data static ID3D12Device* g_pd3dDevice = NULL; static ID3D12GraphicsCommandList* g_pd3dCommandList = NULL; @@ -221,110 +215,6 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data) } } -static void ImGui_ImplWin32_UpdateMouseCursor() -{ - ImGuiIO& io = ImGui::GetIO(); - ImGuiMouseCursor imgui_cursor = io.MouseDrawCursor ? ImGuiMouseCursor_None : ImGui::GetMouseCursor(); - if (imgui_cursor == ImGuiMouseCursor_None) - { - // Hide OS mouse cursor if imgui is drawing it or if it wants no cursor - ::SetCursor(NULL); - } - else - { - // Hardware cursor type - LPTSTR win32_cursor = IDC_ARROW; - switch (imgui_cursor) - { - case ImGuiMouseCursor_Arrow: win32_cursor = IDC_ARROW; break; - case ImGuiMouseCursor_TextInput: win32_cursor = IDC_IBEAM; break; - case ImGuiMouseCursor_ResizeAll: win32_cursor = IDC_SIZEALL; break; - case ImGuiMouseCursor_ResizeEW: win32_cursor = IDC_SIZEWE; break; - case ImGuiMouseCursor_ResizeNS: win32_cursor = IDC_SIZENS; break; - case ImGuiMouseCursor_ResizeNESW: win32_cursor = IDC_SIZENESW; break; - case ImGuiMouseCursor_ResizeNWSE: win32_cursor = IDC_SIZENWSE; break; - } - ::SetCursor(::LoadCursor(NULL, win32_cursor)); - } -} - -// Process Win32 mouse/keyboard inputs. -// 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. -// 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. -// 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. -IMGUI_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) -{ - if (ImGui::GetCurrentContext() == NULL) - return 0; - - ImGuiIO& io = ImGui::GetIO(); - switch (msg) - { - case WM_LBUTTONDOWN: case WM_LBUTTONDBLCLK: - case WM_RBUTTONDOWN: case WM_RBUTTONDBLCLK: - case WM_MBUTTONDOWN: case WM_MBUTTONDBLCLK: - { - int button = 0; - if (msg == WM_LBUTTONDOWN || msg == WM_LBUTTONDBLCLK) button = 0; - if (msg == WM_RBUTTONDOWN || msg == WM_RBUTTONDBLCLK) button = 1; - if (msg == WM_MBUTTONDOWN || msg == WM_MBUTTONDBLCLK) button = 2; - if (!ImGui::IsAnyMouseDown() && ::GetCapture() == NULL) - ::SetCapture(hwnd); - io.MouseDown[button] = true; - return 0; - } - case WM_LBUTTONUP: - case WM_RBUTTONUP: - case WM_MBUTTONUP: - { - int button = 0; - if (msg == WM_LBUTTONUP) button = 0; - if (msg == WM_RBUTTONUP) button = 1; - if (msg == WM_MBUTTONUP) button = 2; - io.MouseDown[button] = false; - if (!ImGui::IsAnyMouseDown() && ::GetCapture() == hwnd) - ::ReleaseCapture(); - return 0; - } - case WM_MOUSEWHEEL: - io.MouseWheel += GET_WHEEL_DELTA_WPARAM(wParam) > 0 ? +1.0f : -1.0f; - return 0; - case WM_MOUSEHWHEEL: - io.MouseWheelH += GET_WHEEL_DELTA_WPARAM(wParam) > 0 ? +1.0f : -1.0f; - return 0; - case WM_MOUSEMOVE: - io.MousePos.x = (signed short)(lParam); - io.MousePos.y = (signed short)(lParam >> 16); - return 0; - case WM_KEYDOWN: - case WM_SYSKEYDOWN: - if (wParam < 256) - io.KeysDown[wParam] = 1; - return 0; - case WM_KEYUP: - case WM_SYSKEYUP: - if (wParam < 256) - io.KeysDown[wParam] = 0; - return 0; - case WM_CHAR: - // You can also use ToAscii()+GetKeyboardState() to retrieve characters. - if (wParam > 0 && wParam < 0x10000) - io.AddInputCharacter((unsigned short)wParam); - return 0; - case WM_SETCURSOR: - if (LOWORD(lParam) == HTCLIENT) - { - ImGui_ImplWin32_UpdateMouseCursor(); - return 1; - } - return 0; - } - return 0; -} - static void ImGui_ImplDX12_CreateFontsTexture() { // Build texture atlas @@ -690,13 +580,9 @@ void ImGui_ImplDX12_InvalidateDeviceObjects() } } -bool ImGui_ImplDX12_Init(void* hwnd, int num_frames_in_flight, - ID3D12Device* device, - DXGI_FORMAT rtv_format, - D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, - D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle) +bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FORMAT rtv_format, + D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle) { - g_hWnd = (HWND)hwnd; g_pd3dDevice = device; g_RTVFormat = rtv_format; g_hFontSrvCpuDescHandle = font_srv_cpu_desc_handle; @@ -713,36 +599,6 @@ bool ImGui_ImplDX12_Init(void* hwnd, int num_frames_in_flight, g_pFrameResources[i].IndexBufferSize = 10000; } - if (!QueryPerformanceFrequency((LARGE_INTEGER *)&g_TicksPerSecond)) - return false; - if (!QueryPerformanceCounter((LARGE_INTEGER *)&g_Time)) - return false; - - ImGuiIO& io = ImGui::GetIO(); - io.KeyMap[ImGuiKey_Tab] = VK_TAB; // Keyboard mapping. ImGui will use those indices to peek into the io.KeyDown[] array that we will update during the application lifetime. - io.KeyMap[ImGuiKey_LeftArrow] = VK_LEFT; - io.KeyMap[ImGuiKey_RightArrow] = VK_RIGHT; - io.KeyMap[ImGuiKey_UpArrow] = VK_UP; - io.KeyMap[ImGuiKey_DownArrow] = VK_DOWN; - io.KeyMap[ImGuiKey_PageUp] = VK_PRIOR; - io.KeyMap[ImGuiKey_PageDown] = VK_NEXT; - io.KeyMap[ImGuiKey_Home] = VK_HOME; - io.KeyMap[ImGuiKey_End] = VK_END; - io.KeyMap[ImGuiKey_Insert] = VK_INSERT; - io.KeyMap[ImGuiKey_Delete] = VK_DELETE; - io.KeyMap[ImGuiKey_Backspace] = VK_BACK; - io.KeyMap[ImGuiKey_Space] = VK_SPACE; - io.KeyMap[ImGuiKey_Enter] = VK_RETURN; - io.KeyMap[ImGuiKey_Escape] = VK_ESCAPE; - io.KeyMap[ImGuiKey_A] = 'A'; - io.KeyMap[ImGuiKey_C] = 'C'; - io.KeyMap[ImGuiKey_V] = 'V'; - io.KeyMap[ImGuiKey_X] = 'X'; - io.KeyMap[ImGuiKey_Y] = 'Y'; - io.KeyMap[ImGuiKey_Z] = 'Z'; - - io.ImeWindowHandle = g_hWnd; - return true; } @@ -751,7 +607,6 @@ void ImGui_ImplDX12_Shutdown() ImGui_ImplDX12_InvalidateDeviceObjects(); delete[] g_pFrameResources; g_pd3dDevice = NULL; - g_hWnd = (HWND)0; g_pd3dCommandList = NULL; g_hFontSrvCpuDescHandle.ptr = 0; g_hFontSrvGpuDescHandle.ptr = 0; @@ -766,46 +621,4 @@ void ImGui_ImplDX12_NewFrame(ID3D12GraphicsCommandList* command_list) ImGui_ImplDX12_CreateDeviceObjects(); g_pd3dCommandList = command_list; - - ImGuiIO& io = ImGui::GetIO(); - - // Setup display size (every frame to accommodate for window resizing) - RECT rect; - GetClientRect(g_hWnd, &rect); - io.DisplaySize = ImVec2((float)(rect.right - rect.left), (float)(rect.bottom - rect.top)); - - // Setup time step - INT64 current_time; - QueryPerformanceCounter((LARGE_INTEGER *)¤t_time); - io.DeltaTime = (float)(current_time - g_Time) / g_TicksPerSecond; - g_Time = current_time; - - // Read keyboard modifiers inputs - io.KeyCtrl = (GetKeyState(VK_CONTROL) & 0x8000) != 0; - io.KeyShift = (GetKeyState(VK_SHIFT) & 0x8000) != 0; - io.KeyAlt = (GetKeyState(VK_MENU) & 0x8000) != 0; - io.KeySuper = false; - // io.KeysDown : filled by WM_KEYDOWN/WM_KEYUP events - // io.MousePos : filled by WM_MOUSEMOVE events - // io.MouseDown : filled by WM_*BUTTON* events - // io.MouseWheel : filled by WM_MOUSEWHEEL events - - // Set OS mouse position if requested last frame by io.WantMoveMouse flag (used when io.NavMovesTrue is enabled by user and using directional navigation) - if (io.WantMoveMouse) - { - POINT pos = { (int)io.MousePos.x, (int)io.MousePos.y }; - ClientToScreen(g_hWnd, &pos); - SetCursorPos(pos.x, pos.y); - } - - // 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. This call will update the io.WantCaptureMouse, io.WantCaptureKeyboard flag that you can use to dispatch inputs (or not) to your application. - ImGui::NewFrame(); } diff --git a/examples/directx12_example/imgui_impl_dx12.h b/examples/imgui_impl_dx12.h similarity index 54% rename from examples/directx12_example/imgui_impl_dx12.h rename to examples/imgui_impl_dx12.h index 628bbd49..0f8eaebb 100644 --- a/examples/directx12_example/imgui_impl_dx12.h +++ b/examples/imgui_impl_dx12.h @@ -19,22 +19,12 @@ struct D3D12_GPU_DESCRIPTOR_HANDLE; // 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 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* cmd_list); -IMGUI_API void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data); +IMGUI_API bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FORMAT rtv_format, + 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* 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(); -IMGUI_API bool ImGui_ImplDX12_CreateDeviceObjects(); - -// Handler for Win32 messages, update mouse/keyboard data. -// 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 types. You can copy the extern declaration in your code. -/* -IMGUI_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam); -*/ +IMGUI_API void ImGui_ImplDX12_InvalidateDeviceObjects(); +IMGUI_API bool ImGui_ImplDX12_CreateDeviceObjects();