561 lines
10 KiB
C++
561 lines
10 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//=============================================================================//
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// TerrainBlend.cpp : Defines the entry point for the application.
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//
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#include "stdafx.h"
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#include "resource.h"
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#include "mathlib/mathlib.h"
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#include "tier0/dbg.h"
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#include "tier0/icommandline.h"
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#include "tier1/strtools.h"
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#define MAX_LOADSTRING 100
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// Global Variables:
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HINSTANCE hInst; // current instance
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TCHAR szTitle[MAX_LOADSTRING]; // The title bar text
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TCHAR szWindowClass[MAX_LOADSTRING]; // The title bar text
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HWND g_hWnd;
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// Foward declarations of functions included in this code module:
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ATOM MyRegisterClass(HINSTANCE hInstance);
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BOOL InitInstance(HINSTANCE, int);
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LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
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LRESULT CALLBACK About(HWND, UINT, WPARAM, LPARAM);
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int g_nCapture = 0;
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bool g_bFocus = false;
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int g_ScreenWidth, g_ScreenHeight;
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D3DPRESENT_PARAMETERS d3dpp;
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IDirect3D8 *g_pDirect3D;
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IDirect3DDevice8 *g_pDevice;
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POINT GetWindowCenter()
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{
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RECT rc;
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GetWindowRect(g_hWnd, &rc);
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POINT ret;
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ret.x = (rc.left + rc.right) / 2;
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ret.y = (rc.top + rc.bottom) / 2;
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return ret;
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}
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void CallAppRender( bool bInvalidRect )
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{
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static DWORD lastTime = 0;
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static POINT lastMousePos = {0xFFFF, 0xFFFF};
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// Sample time and mouse position and tell the app to render.
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DWORD curTime = GetTickCount();
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float frametime = (curTime - lastTime) / 1000.0f;
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if( frametime > 0.1f )
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frametime = 0.1f;
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lastTime = curTime;
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// Get the cursor delta.
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POINT curMousePos;
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GetCursorPos(&curMousePos);
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int deltaX, deltaY;
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if( lastMousePos.x == 0xFFFF )
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{
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deltaX = deltaY = 0;
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}
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else
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{
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deltaX = curMousePos.x - lastMousePos.x;
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deltaY = curMousePos.y - lastMousePos.y;
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}
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// Recenter the cursor.
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if( g_nCapture )
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{
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lastMousePos = GetWindowCenter();
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SetCursorPos( lastMousePos.x, lastMousePos.y );
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}
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else
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{
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lastMousePos = curMousePos;
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}
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AppRender( frametime, (float)deltaX, (float)deltaY, bInvalidRect );
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}
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SpewRetval_t D3DAppSpewFunc( SpewType_t spewType, char const *pMsg )
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{
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switch (spewType)
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{
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case SPEW_ERROR:
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MessageBox(NULL, pMsg, "FATAL ERROR", MB_OK);
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return SPEW_ABORT;
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default:
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OutputDebugString(pMsg);
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#ifdef _DEBUG
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return spewType == SPEW_ASSERT ? SPEW_DEBUGGER : SPEW_CONTINUE;
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#else
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return SPEW_CONTINUE;
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#endif
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}
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}
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int APIENTRY WinMain(HINSTANCE hInstance,
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HINSTANCE hPrevInstance,
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LPSTR lpCmdLine,
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int nCmdShow)
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{
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CommandLine()->CreateCmdLine( Plat_GetCommandLine() );
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// TODO: Place code here.
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SpewOutputFunc( D3DAppSpewFunc );
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MathLib_Init( true, true, true, 2.2f, 2.2f, 0.0f, 2.0f );
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MSG msg;
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HACCEL hAccelTable;
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// Initialize global strings
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LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
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strcpy( szWindowClass, "d3dapp" );
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MyRegisterClass(hInstance);
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// Perform application initialization:
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if (!InitInstance (hInstance, nCmdShow))
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{
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return FALSE;
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}
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hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_TERRAINBLEND);
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InvalidateRect( g_hWnd, NULL, FALSE );
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// Main message loop:
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while(1)
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{
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while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
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{
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if(msg.message == WM_QUIT)
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break;
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if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
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{
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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}
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if(msg.message == WM_QUIT)
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break;
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CallAppRender( false );
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}
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AppExit();
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return msg.wParam;
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}
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//
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// FUNCTION: MyRegisterClass()
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//
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// PURPOSE: Registers the window class.
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//
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// COMMENTS:
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//
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// This function and its usage is only necessary if you want this code
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// to be compatible with Win32 systems prior to the 'RegisterClassEx'
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// function that was added to Windows 95. It is important to call this function
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// so that the application will get 'well formed' small icons associated
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// with it.
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//
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ATOM MyRegisterClass(HINSTANCE hInstance)
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{
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WNDCLASSEX wcex;
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wcex.cbSize = sizeof(WNDCLASSEX);
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wcex.style = CS_HREDRAW | CS_VREDRAW;
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wcex.lpfnWndProc = (WNDPROC)WndProc;
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wcex.cbClsExtra = 0;
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wcex.cbWndExtra = 0;
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wcex.hInstance = hInstance;
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wcex.hIcon = LoadIcon(hInstance, (LPCTSTR)IDI_TERRAINBLEND);
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wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
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wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
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wcex.lpszMenuName = NULL;
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wcex.lpszClassName = szWindowClass;
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wcex.hIconSm = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);
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return RegisterClassEx(&wcex);
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}
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void ShutdownD3D()
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{
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if( g_pDevice )
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{
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g_pDevice->Release();
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g_pDevice = NULL;
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}
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if( g_pDirect3D )
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{
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g_pDirect3D->Release();
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g_pDirect3D = NULL;
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}
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}
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void InitD3D()
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{
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ShutdownD3D();
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RECT rcClient;
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GetClientRect( g_hWnd, &rcClient );
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g_ScreenWidth = rcClient.right - rcClient.left;
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g_ScreenHeight = rcClient.bottom - rcClient.top;
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// Initialize D3D.
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g_pDirect3D = Direct3DCreate8( D3D_SDK_VERSION );
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// Get the current desktop display mode, so we can set up a back
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// buffer of the same format
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D3DDISPLAYMODE d3ddm;
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g_pDirect3D->GetAdapterDisplayMode( D3DADAPTER_DEFAULT, &d3ddm );
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// Set up the structure used to create the D3DDevice
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ZeroMemory( &d3dpp, sizeof(d3dpp) );
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d3dpp.Windowed = TRUE;
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d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
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d3dpp.BackBufferFormat = d3ddm.Format;
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d3dpp.EnableAutoDepthStencil = TRUE;
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d3dpp.AutoDepthStencilFormat = D3DFMT_D24S8;
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d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE;
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HRESULT hr = g_pDirect3D->CreateDevice(
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D3DADAPTER_DEFAULT,
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D3DDEVTYPE_HAL,
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g_hWnd,
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D3DCREATE_SOFTWARE_VERTEXPROCESSING,
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&d3dpp,
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&g_pDevice);
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if( FAILED(hr) )
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{
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Sys_Error( "CreateDevice failed (%s)", DXGetErrorString8(hr) );
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}
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g_pDevice->SetRenderState( D3DRS_CULLMODE, D3DCULL_NONE );
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g_pDevice->SetRenderState( D3DRS_LIGHTING, FALSE );
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}
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void DoResize()
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{
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AppPreResize();
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InitD3D();
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AppPostResize();
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CallAppRender( true );
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}
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//
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// FUNCTION: InitInstance(HANDLE, int)
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//
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// PURPOSE: Saves instance handle and creates main window
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//
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// COMMENTS:
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//
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// In this function, we save the instance handle in a global variable and
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// create and display the main program window.
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//
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BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
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{
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hInst = hInstance; // Store instance handle in our global variable
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int x = Sys_FindArgInt( "-x", 0 );
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int y = Sys_FindArgInt( "-y", 0 );
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int w = Sys_FindArgInt( "-width", CW_USEDEFAULT );
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int h = Sys_FindArgInt( "-height", CW_USEDEFAULT );
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DWORD dwFlags = WS_OVERLAPPEDWINDOW;
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// Get the 'work area' so we don't overlap the taskbar on the top or left.
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RECT rcWorkArea;
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SystemParametersInfo( SPI_GETWORKAREA, 0, &rcWorkArea, 0 );
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// If they don't specify anything, maximize the window.
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if( x == 0 && y == 0 && w == CW_USEDEFAULT && h == CW_USEDEFAULT )
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{
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x = rcWorkArea.left;
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y = rcWorkArea.top;
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w = rcWorkArea.right - rcWorkArea.left;
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h = rcWorkArea.bottom - rcWorkArea.top;
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dwFlags |= WS_MAXIMIZE;
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}
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else
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{
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x += rcWorkArea.left;
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y += rcWorkArea.top;
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}
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g_hWnd = CreateWindow(
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szWindowClass,
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szTitle,
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dwFlags, // window style
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x, // x
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y, // y
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w, // width
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h, // height
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NULL,
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NULL,
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hInstance,
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NULL);
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if (!g_hWnd)
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{
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return FALSE;
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}
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ShowWindow(g_hWnd, nCmdShow);
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UpdateWindow(g_hWnd);
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InitD3D();
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AppInit();
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// Reinitialize D3D. For some reason, D3D point primitives are way too large
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// unless we do this.
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DoResize();
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return TRUE;
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}
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//
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// FUNCTION: WndProc(HWND, unsigned, WORD, LONG)
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//
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// PURPOSE: Processes messages for the main window.
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//
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// WM_COMMAND - process the application menu
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// WM_PAINT - Paint the main window
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// WM_DESTROY - post a quit message and return
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//
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//
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LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
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{
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switch (message)
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{
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case WM_PAINT:
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{
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PAINTSTRUCT ps;
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BeginPaint( hWnd, &ps );
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EndPaint( hWnd, &ps );
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if( g_pDevice )
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CallAppRender( true );
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}
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break;
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case WM_KEYDOWN:
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{
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AppKey( (int)wParam, lParam&0xFFFF );
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}
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break;
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case WM_KEYUP:
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{
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AppKey( (int)wParam, 0 );
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}
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break;
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case WM_CHAR:
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{
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AppChar( (int)wParam );
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}
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break;
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case WM_DESTROY:
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PostQuitMessage(0);
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break;
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case WM_LBUTTONDOWN:
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{
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ShowCursor( FALSE );
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SetCapture( g_hWnd );
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g_nCapture++;
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}
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break;
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case WM_LBUTTONUP:
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{
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ShowCursor( TRUE );
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ReleaseCapture( );
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g_nCapture--;
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}
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break;
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case WM_RBUTTONDOWN:
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{
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ShowCursor( FALSE );
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SetCapture( g_hWnd );
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g_nCapture++;
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}
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break;
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case WM_RBUTTONUP:
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{
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ShowCursor( TRUE );
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ReleaseCapture( );
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g_nCapture--;
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}
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break;
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case WM_SIZE:
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{
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if( g_pDevice )
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DoResize();
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}
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break;
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case WM_SETFOCUS:
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{
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g_bFocus = true;
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}
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break;
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case WM_KILLFOCUS:
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{
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g_bFocus = false;
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}
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break;
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default:
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return DefWindowProc(hWnd, message, wParam, lParam);
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}
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return 0;
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}
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bool Sys_Error(const char *pMsg, ...)
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{
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char msg[4096];
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va_list marker;
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va_start( marker, pMsg );
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V_vsprintf_safe( msg, pMsg, marker );
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va_end( marker );
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MessageBox( NULL, msg, "Error!", MB_OK );
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exit(1);
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return true;
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}
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void Sys_Quit()
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{
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PostQuitMessage( 0 );
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}
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void Sys_SetWindowText( char const *pMsg, ... )
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{
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va_list marker;
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char msg[4096];
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va_start(marker, pMsg);
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V_vsprintf_safe(msg, pMsg, marker);
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va_end(marker);
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SetWindowText( g_hWnd, msg );
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}
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bool Sys_GetKeyState( int key )
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{
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int keyTranslations[][2] =
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{
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{APPKEY_LBUTTON, VK_LBUTTON},
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{APPKEY_RBUTTON, VK_RBUTTON},
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{APPKEY_SPACE, VK_SPACE}
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};
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int nKeyTranslations = sizeof(keyTranslations) / sizeof(keyTranslations[0]);
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for( int i=0; i < nKeyTranslations; i++ )
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{
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if( key == keyTranslations[i][0] )
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{
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key = keyTranslations[i][1];
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break;
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}
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}
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return !!( GetAsyncKeyState( key ) & 0x8000 );
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}
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void Sys_Sleep( int ms )
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{
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Sleep( (DWORD)ms );
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}
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bool Sys_HasFocus()
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{
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return g_bFocus;
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}
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char const* Sys_FindArg( char const *pArg, char const *pDefault )
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{
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for( int i=0; i < __argc; i++ )
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{
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if( stricmp( __argv[i], pArg ) == 0 )
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return (i+1) < __argc ? __argv[i+1] : "";
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}
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return pDefault;
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}
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int Sys_FindArgInt( char const *pArg, int defaultVal )
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{
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char const *pVal = Sys_FindArg( pArg, NULL );
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if( pVal )
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return atoi( pVal );
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else
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return defaultVal;
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}
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int Sys_ScreenWidth()
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{
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return g_ScreenWidth;
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}
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int Sys_ScreenHeight()
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{
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return g_ScreenHeight;
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}
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