From ee177d37df85b982d6c528a7b79e3cd9ca9749d6 Mon Sep 17 00:00:00 2001 From: Egor Yusov Date: Mon, 11 Nov 2019 07:42:14 -0800 Subject: Moved Native App from master repository --- NativeApp/src/Win32/WinMain.cpp | 168 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 168 insertions(+) create mode 100644 NativeApp/src/Win32/WinMain.cpp (limited to 'NativeApp/src/Win32/WinMain.cpp') diff --git a/NativeApp/src/Win32/WinMain.cpp b/NativeApp/src/Win32/WinMain.cpp new file mode 100644 index 0000000..8f63460 --- /dev/null +++ b/NativeApp/src/Win32/WinMain.cpp @@ -0,0 +1,168 @@ +/* Copyright 2019 Diligent Graphics LLC + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS. + * + * In no event and under no legal theory, whether in tort (including negligence), + * contract, or otherwise, unless required by applicable law (such as deliberate + * and grossly negligent acts) or agreed to in writing, shall any Contributor be + * liable for any damages, including any direct, indirect, special, incidental, + * or consequential damages of any character arising as a result of this License or + * out of the use or inability to use the software (including but not limited to damages + * for loss of goodwill, work stoppage, computer failure or malfunction, or any and + * all other commercial damages or losses), even if such Contributor has been advised + * of the possibility of such damages. + */ + +#include +#include +#include +#include +#include "NativeAppBase.h" +#include "StringTools.h" +#include "Timer.h" + +using namespace Diligent; + +std::unique_ptr g_pTheApp; + +LRESULT CALLBACK MessageProc(HWND, UINT, WPARAM, LPARAM); +// Main +int WINAPI WinMain(HINSTANCE instance, HINSTANCE, LPSTR, int cmdShow) +{ +#if defined(_DEBUG) || defined(DEBUG) + _CrtSetDbgFlag( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF ); +#endif + + g_pTheApp.reset( CreateApplication() ); + + const auto* cmdLine = GetCommandLineA(); + g_pTheApp->ProcessCommandLine(cmdLine); + + const auto* AppTitle = g_pTheApp->GetAppTitle(); + +#ifdef UNICODE + const auto* const WindowClassName = L"SampleApp"; +#else + const auto* const WindowClassName = "SampleApp"; +#endif + + // Register our window class + WNDCLASSEX wcex = { sizeof(WNDCLASSEX), CS_HREDRAW|CS_VREDRAW, MessageProc, + 0L, 0L, instance, NULL, NULL, NULL, NULL, WindowClassName, NULL }; + RegisterClassEx(&wcex); + + int DesiredWidth = 0; + int DesiredHeight = 0; + g_pTheApp->GetDesiredInitialWindowSize(DesiredWidth, DesiredHeight); + // Create a window + LONG WindowWidth = DesiredWidth > 0 ? DesiredWidth : 1280; + LONG WindowHeight = DesiredHeight > 0 ? DesiredHeight : 1024; + RECT rc = { 0, 0, WindowWidth, WindowHeight }; + AdjustWindowRect(&rc, WS_OVERLAPPEDWINDOW, FALSE); + HWND wnd = CreateWindowA("SampleApp", AppTitle, + WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, + rc.right-rc.left, rc.bottom-rc.top, NULL, NULL, instance, NULL); + if (!wnd) + { + MessageBoxA(NULL, "Cannot create window", "Error", MB_OK|MB_ICONERROR); + return 0; + } + ShowWindow(wnd, cmdShow); + UpdateWindow(wnd); + + g_pTheApp->OnWindowCreated(wnd, WindowWidth, WindowHeight); + AppTitle = g_pTheApp->GetAppTitle(); + + Diligent::Timer Timer; + auto PrevTime = Timer.GetElapsedTime(); + double filteredFrameTime = 0.0; + + // Main message loop + MSG msg = {0}; + while (WM_QUIT != msg.message) + { + if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) + { + TranslateMessage(&msg); + DispatchMessage(&msg); + } + else + { + auto CurrTime = Timer.GetElapsedTime(); + auto ElapsedTime = CurrTime - PrevTime; + PrevTime = CurrTime; + g_pTheApp->Update(CurrTime, ElapsedTime); + + g_pTheApp->Render(); + + g_pTheApp->Present(); + + double filterScale = 0.2; + filteredFrameTime = filteredFrameTime * (1.0 - filterScale) + filterScale * ElapsedTime; + std::stringstream fpsCounterSS; + fpsCounterSS << AppTitle << " - " << std::fixed << std::setprecision(1) << filteredFrameTime * 1000; + fpsCounterSS << " ms (" << 1.0 / filteredFrameTime << " fps)"; + SetWindowTextA(wnd, fpsCounterSS.str().c_str()); + } + } + + g_pTheApp.reset(); + + return (int)msg.wParam; +} + +// Called every time the NativeNativeAppBase receives a message +LRESULT CALLBACK MessageProc(HWND wnd, UINT message, WPARAM wParam, LPARAM lParam) +{ + if(g_pTheApp) + { + auto res = g_pTheApp->HandleWin32Message(wnd, message, wParam, lParam); + if (res != 0) + return res; + } + + switch (message) + { + case WM_PAINT: + { + PAINTSTRUCT ps; + BeginPaint(wnd, &ps); + EndPaint(wnd, &ps); + return 0; + } + case WM_SIZE: // Window size has been changed + if( g_pTheApp ) + { + g_pTheApp->WindowResize(LOWORD(lParam), HIWORD(lParam)); + } + return 0; + + case WM_CHAR: + if (wParam == VK_ESCAPE) + PostQuitMessage(0); + return 0; + + case WM_DESTROY: + PostQuitMessage(0); + return 0; + + case WM_GETMINMAXINFO: + { + LPMINMAXINFO lpMMI = (LPMINMAXINFO)lParam; + lpMMI->ptMinTrackSize.x = 320; + lpMMI->ptMinTrackSize.y = 240; + return 0; + } + + default: + return DefWindowProc(wnd, message, wParam, lParam); + } +} -- cgit v1.2.3