659 lines
20 KiB
C++
659 lines
20 KiB
C++
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//-----------------------------------------------------------------------------
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// File: Pipes.cpp
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//
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// Desc: Fun screen saver.
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//
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// Copyright (c) 2000-2001 Microsoft Corporation. All rights reserved.
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//-----------------------------------------------------------------------------
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#include "stdafx.h"
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//-----------------------------------------------------------------------------
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// Name: struct MYVERTEX
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// Desc: D3D vertex type for this app
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//-----------------------------------------------------------------------------
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struct MYVERTEX
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{
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D3DXVECTOR3 p; // Position
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FLOAT tu; // Vertex texture coordinates
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FLOAT tv;
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MYVERTEX(D3DXVECTOR3 pInit, FLOAT tuInit, FLOAT tvInit)
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{ p = pInit; tu = tuInit; tv = tvInit; }
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};
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#define D3DFVF_MYVERTEX (D3DFVF_XYZ | D3DFVF_TEX1)
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#define BUF_SIZE 255
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TCHAR g_szSectName[BUF_SIZE];
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TCHAR g_szFname[BUF_SIZE];
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CPipesScreensaver* g_pMyPipesScreensaver = NULL;
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//-----------------------------------------------------------------------------
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// Name: WinMain()
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// Desc: Entry point to the program. Initializes everything, and goes into a
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// message-processing loop. Idle time is used to render the scene.
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//-----------------------------------------------------------------------------
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INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR, INT )
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{
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HRESULT hr;
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CPipesScreensaver pipesScreensaverSS;
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if( FAILED( hr = pipesScreensaverSS.Create( hInst ) ) )
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{
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pipesScreensaverSS.DisplayErrorMsg( hr );
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return 0;
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}
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return pipesScreensaverSS.Run();
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}
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//-----------------------------------------------------------------------------
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// Name: CPipesScreensaver()
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// Desc: Constructor
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//-----------------------------------------------------------------------------
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CPipesScreensaver::CPipesScreensaver( )
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{
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g_pMyPipesScreensaver = this;
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InitCommonControls();
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for( int i=0; i<MAX_DEVICE_OBJECTS; i++ )
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{
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m_DeviceObjects[i].m_pState = NULL;
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}
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LoadString( NULL, IDS_DESCRIPTION, m_strWindowTitle, 200 );
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m_bUseDepthBuffer = TRUE;
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m_SwapEffectFullscreen = D3DSWAPEFFECT_COPY;
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m_SwapEffectWindowed = D3DSWAPEFFECT_COPY_VSYNC;
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m_pDeviceObjects = NULL;
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lstrcpy( m_strRegPath, TEXT("Software\\Microsoft\\ScreenSavers\\Pipes") );
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m_Config.bMultiPipes = FALSE;
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m_Config.nJointType = JOINT_ELBOW;
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m_Config.bTextured = FALSE;
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m_Config.bDefaultTexture = TRUE;
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lstrcpy( m_Config.strTextureName[0], TEXT("") );
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m_Config.bFlexMode = FALSE;
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m_Config.dwTesselFact = 0;
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m_Config.dwSpeed = 16;
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m_iRenderUnit = 0;
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RandInit();
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}
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//-----------------------------------------------------------------------------
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// Name: SetDevice()
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// Desc:
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//-----------------------------------------------------------------------------
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VOID CPipesScreensaver::SetDevice( UINT iDevice )
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{
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m_pDeviceObjects = &m_DeviceObjects[iDevice];
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m_iRenderUnit = iDevice;
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}
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//-----------------------------------------------------------------------------
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// Name: RegisterSoftwareDevice()
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// Desc: This can register the D3D8RGBRasterizer or any other
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// pluggable software rasterizer.
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//-----------------------------------------------------------------------------
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HRESULT CPipesScreensaver::RegisterSoftwareDevice()
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{
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m_pD3D->RegisterSoftwareDevice( D3D8RGBRasterizer );
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return S_OK;
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}
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//-----------------------------------------------------------------------------
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// Name: FrameMove()
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// Desc: Called once per frame, the call is the entry point for animating
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// the scene.
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//-----------------------------------------------------------------------------
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HRESULT CPipesScreensaver::FrameMove()
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{
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m_pDeviceObjects->m_pState->FrameMove( m_fElapsedTime );
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return S_OK;
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}
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//-----------------------------------------------------------------------------
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// Name: DoPaint()
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// Desc:
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//-----------------------------------------------------------------------------
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VOID CPipesScreensaver::DoPaint(HWND hwnd, HDC hdc)
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{
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CD3DScreensaver::DoPaint( hwnd, hdc );
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for( int iDevice=0; iDevice<MAX_DEVICE_OBJECTS; iDevice++ )
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{
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if( m_DeviceObjects[iDevice].m_pState )
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m_DeviceObjects[iDevice].m_pState->Repaint();
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}
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}
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//-----------------------------------------------------------------------------
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// Name: Render()
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// Desc: Called once per frame, the call is the entry point for 3d
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// rendering. This function sets up render states, clears the
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// viewport, and renders the scene.
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//-----------------------------------------------------------------------------
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HRESULT CPipesScreensaver::Render()
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{
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BOOL bRenderNewPiece = FALSE;
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if( m_Config.dwSpeed == 20 )
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{
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bRenderNewPiece = TRUE;
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}
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else
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{
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FLOAT fCurTime = DXUtil_Timer( TIMER_GETAPPTIME );
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if( fCurTime - m_pDeviceObjects->m_pState->m_fLastTime >
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(20-m_Config.dwSpeed) * 0.005 )
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{
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bRenderNewPiece = TRUE;
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m_pDeviceObjects->m_pState->m_fLastTime = fCurTime;
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}
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}
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if( bRenderNewPiece )
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{
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// Begin the scene
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if( SUCCEEDED( m_pd3dDevice->BeginScene() ) )
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{
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m_pDeviceObjects->m_pState->Render();
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// End the scene.
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m_pd3dDevice->EndScene();
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}
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}
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else
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{
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if( m_iRenderUnit == 0 )
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{
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// Wait for a little while so we don't draw the pipes too fast
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Sleep(10);
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}
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}
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return S_OK;
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}
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//-----------------------------------------------------------------------------
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// Name: RestoreDeviceObjects()
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// Desc:
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//-----------------------------------------------------------------------------
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HRESULT CPipesScreensaver::RestoreDeviceObjects()
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{
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if( m_pd3dDevice == NULL )
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return S_OK;
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m_pDeviceObjects->m_pState = new STATE( &m_Config );
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m_pDeviceObjects->m_pState->InitDeviceObjects( m_pd3dDevice );
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m_pDeviceObjects->m_pState->RestoreDeviceObjects();
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m_pd3dDevice->Clear( 0L, NULL, D3DCLEAR_TARGET|D3DCLEAR_ZBUFFER,
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0x00000000, 1.0f, 0L );
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return S_OK;
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}
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//-----------------------------------------------------------------------------
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// Name: InvalidateDeviceObjects()
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// Desc:
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//-----------------------------------------------------------------------------
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HRESULT CPipesScreensaver::InvalidateDeviceObjects()
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{
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m_pDeviceObjects->m_pState->InvalidateDeviceObjects();
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m_pDeviceObjects->m_pState->DeleteDeviceObjects();
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SAFE_DELETE( m_pDeviceObjects->m_pState );
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return S_OK;
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}
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//-----------------------------------------------------------------------------
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// Name: ConfigureDialogProcHelper()
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// Desc:
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//-----------------------------------------------------------------------------
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INT_PTR CALLBACK ConfigureDialogProcHelper( HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam )
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{
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return g_pMyPipesScreensaver->ConfigureDialogProc( hwndDlg, uMsg, wParam, lParam );
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}
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//-----------------------------------------------------------------------------
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// Name: DoConfig()
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// Desc:
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//-----------------------------------------------------------------------------
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VOID CPipesScreensaver::DoConfig()
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{
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DialogBox( NULL, MAKEINTRESOURCE(IDD_CONFIGURE), m_hWndParent, ConfigureDialogProcHelper );
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}
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//-----------------------------------------------------------------------------
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// Name: ConfigureDialogProc()
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// Desc:
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//-----------------------------------------------------------------------------
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INT_PTR CALLBACK CPipesScreensaver::ConfigureDialogProc( HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam )
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{
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static CONFIG s_TempConfig;
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switch (uMsg)
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{
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case WM_INITDIALOG:
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{
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ReadSettings();
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s_TempConfig = m_Config;
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lstrcpy( s_TempConfig.strTextureName[0], m_Config.strTextureName[0] );
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if( s_TempConfig.bMultiPipes )
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CheckRadioButton(hwndDlg, IDC_RADIO_SINGLE_PIPE, IDC_RADIO_MULTIPLE_PIPES,
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IDC_RADIO_MULTIPLE_PIPES);
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else
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CheckRadioButton(hwndDlg, IDC_RADIO_SINGLE_PIPE, IDC_RADIO_MULTIPLE_PIPES,
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IDC_RADIO_SINGLE_PIPE);
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HWND hCtrl = GetDlgItem(hwndDlg, DLG_COMBO_JOINTTYPE);
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SendMessage(hCtrl, CB_RESETCONTENT, 0, 0);
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TCHAR strJointNames[IDS_JOINT_COUNT][MAX_PATH];
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for (int i = 0; i < IDS_JOINT_COUNT; i++)
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{
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LoadString( NULL, i+IDS_JOINT_FIRST, strJointNames[i],
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sizeof(strJointNames)/IDS_JOINT_COUNT );
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SendMessage(hCtrl, CB_ADDSTRING, 0, (LPARAM)strJointNames[i]);
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}
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SendMessage(hCtrl, CB_SETCURSEL, s_TempConfig.nJointType, 0);
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if( !s_TempConfig.bTextured )
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{
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CheckRadioButton(hwndDlg, IDC_RADIO_SOLID, IDC_RADIO_TEX,
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IDC_RADIO_SOLID);
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EnableWindow( GetDlgItem( hwndDlg, DLG_SETUP_TEXTURE ), FALSE );
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}
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else
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{
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CheckRadioButton(hwndDlg, IDC_RADIO_SOLID, IDC_RADIO_TEX,
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IDC_RADIO_TEX);
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EnableWindow( GetDlgItem( hwndDlg, DLG_SETUP_TEXTURE ), TRUE );
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}
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SendDlgItemMessage( hwndDlg, IDC_SPEED_SLIDER, TBM_SETRANGE, (WPARAM) TRUE, (LPARAM) MAKELONG( 0, 20 ) );
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SendDlgItemMessage( hwndDlg, IDC_SPEED_SLIDER, TBM_SETPOS, (WPARAM) TRUE, (LPARAM) m_Config.dwSpeed );
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SendDlgItemMessage( hwndDlg, IDC_SPEED_SLIDER, TBM_SETPAGESIZE, (WPARAM) 0, (LPARAM) 5 );
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SendDlgItemMessage( hwndDlg, IDC_SPEED_SLIDER, TBM_SETLINESIZE, (WPARAM) 0, (LPARAM) 1 );
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return TRUE;
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}
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case WM_COMMAND:
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{
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switch( LOWORD( wParam ) )
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{
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case IDC_RADIO_TEX:
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EnableWindow( GetDlgItem( hwndDlg, DLG_SETUP_TEXTURE ), TRUE );
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break;
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case IDC_RADIO_SOLID:
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EnableWindow( GetDlgItem( hwndDlg, DLG_SETUP_TEXTURE ), FALSE );
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break;
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case DLG_SETUP_TEXTURE:
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{
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if( SelectTextureFile( hwndDlg, s_TempConfig.strTextureName[0] ) )
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{
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CheckRadioButton(hwndDlg, IDC_RADIO_SOLID, IDC_RADIO_TEX,
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IDC_RADIO_TEX);
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s_TempConfig.bDefaultTexture = FALSE;
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}
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else
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{
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s_TempConfig.bDefaultTexture = TRUE;
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}
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break;
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}
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case IDC_SCREENSETTINGS:
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{
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DoScreenSettingsDialog( hwndDlg );
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break;
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}
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case IDOK:
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{
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s_TempConfig.bMultiPipes = IsDlgButtonChecked(hwndDlg, IDC_RADIO_MULTIPLE_PIPES);
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HWND hCtrl = GetDlgItem(hwndDlg, DLG_COMBO_JOINTTYPE);
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s_TempConfig.nJointType = (DWORD) SendMessage(hCtrl, CB_GETCURSEL, 0, 0);
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s_TempConfig.bTextured = IsDlgButtonChecked(hwndDlg, IDC_RADIO_TEX);
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s_TempConfig.dwSpeed = (DWORD) SendDlgItemMessage( hwndDlg, IDC_SPEED_SLIDER, TBM_GETPOS, 0, 0 );
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m_Config = s_TempConfig;
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lstrcpy( m_Config.strTextureName[0], s_TempConfig.strTextureName[0] );
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WriteSettings();
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EndDialog(hwndDlg, IDOK);
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break;
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}
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case IDCANCEL:
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{
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EndDialog(hwndDlg, IDCANCEL);
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break;
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}
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}
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return TRUE;
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}
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}
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return FALSE;
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}
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//-----------------------------------------------------------------------------
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// Name: SelectTextureFile()
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// Desc:
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//-----------------------------------------------------------------------------
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BOOL CPipesScreensaver::SelectTextureFile( HWND hDlg, TCHAR* origPathName )
|
||
|
|
{
|
||
|
|
TCHAR fn[MAX_PATH] = TEXT("\0");
|
||
|
|
TCHAR szDialogTitle[MAX_PATH];
|
||
|
|
TCHAR szTextureFilter[MAX_PATH];
|
||
|
|
TCHAR szTitle[MAX_PATH];
|
||
|
|
|
||
|
|
LoadString(NULL, IDS_TEXTUREFILTER, szTextureFilter, MAX_PATH);
|
||
|
|
// Filter strings are weird because they contain nulls.
|
||
|
|
// The string loaded from a resource has # where nulls
|
||
|
|
// should be inserted.
|
||
|
|
for( TCHAR* pch = szTextureFilter; *pch != TEXT('\0'); pch++ )
|
||
|
|
{
|
||
|
|
if (*pch == TEXT('#'))
|
||
|
|
*pch = TEXT('\0');
|
||
|
|
}
|
||
|
|
LoadString(NULL, IDS_TEXTUREDIALOGTITLE, szDialogTitle, MAX_PATH);
|
||
|
|
LoadString(NULL, IDS_TITLE, szTitle, MAX_PATH);
|
||
|
|
|
||
|
|
TCHAR szWindowsDir[MAX_PATH];
|
||
|
|
szWindowsDir[0] = TEXT('\0');
|
||
|
|
GetWindowsDirectory( szWindowsDir, MAX_PATH );
|
||
|
|
|
||
|
|
OPENFILENAME ofn;
|
||
|
|
memset( &ofn, 0, sizeof(ofn) );
|
||
|
|
ofn.lStructSize = sizeof(ofn);
|
||
|
|
ofn.hwndOwner = hDlg;
|
||
|
|
ofn.hInstance = m_hInstance;
|
||
|
|
ofn.lpstrFilter = szTextureFilter;
|
||
|
|
ofn.nFilterIndex = 1;
|
||
|
|
ofn.lpstrFile = origPathName;
|
||
|
|
ofn.nMaxFile = sizeof(fn);
|
||
|
|
ofn.lpstrTitle = szDialogTitle;
|
||
|
|
ofn.Flags = OFN_ENABLESIZING|OFN_FILEMUSTEXIST;
|
||
|
|
ofn.lpstrDefExt = TEXT("BMP");
|
||
|
|
if( lstrlen( origPathName ) == 0 )
|
||
|
|
ofn.lpstrInitialDir = szWindowsDir;
|
||
|
|
|
||
|
|
if( GetOpenFileName( &ofn ) )
|
||
|
|
{
|
||
|
|
lstrcpy( origPathName, ofn.lpstrFile );
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Name: ReadSettings()
|
||
|
|
// Desc:
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
VOID CPipesScreensaver::ReadSettings()
|
||
|
|
{
|
||
|
|
HKEY hkey;
|
||
|
|
|
||
|
|
// Read OpenGL settings first, so OS upgrade cases work
|
||
|
|
ss_ReadSettings();
|
||
|
|
|
||
|
|
if( ERROR_SUCCESS == RegCreateKeyEx( HKEY_CURRENT_USER, m_strRegPath,
|
||
|
|
0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hkey, NULL ) )
|
||
|
|
{
|
||
|
|
ReadScreenSettings( hkey );
|
||
|
|
|
||
|
|
// DXUtil_ReadBoolRegKey( hkey, TEXT("Flex Mode"), &m_Config.bFlexMode, m_Config.bFlexMode );
|
||
|
|
DXUtil_ReadBoolRegKey( hkey, TEXT("MultiPipes"), &m_Config.bMultiPipes, m_Config.bMultiPipes );
|
||
|
|
DXUtil_ReadBoolRegKey( hkey, TEXT("Textured"), &m_Config.bTextured, m_Config.bTextured );
|
||
|
|
DXUtil_ReadBoolRegKey( hkey, TEXT("Default Texture"), &m_Config.bDefaultTexture, m_Config.bDefaultTexture );
|
||
|
|
DXUtil_ReadIntRegKey( hkey, TEXT("Tessel Factor"), &m_Config.dwTesselFact, m_Config.dwTesselFact );
|
||
|
|
if( m_Config.dwTesselFact >= 4 )
|
||
|
|
m_Config.dwTesselFact = 4;
|
||
|
|
DXUtil_ReadIntRegKey( hkey, TEXT("Joint Type"), &m_Config.nJointType, m_Config.nJointType );
|
||
|
|
if( m_Config.nJointType >= NUM_JOINTTYPES )
|
||
|
|
m_Config.nJointType = JOINT_ELBOW;
|
||
|
|
DXUtil_ReadIntRegKey( hkey, TEXT("Speed"), &m_Config.dwSpeed, m_Config.dwSpeed );
|
||
|
|
DXUtil_ReadStringRegKey( hkey, TEXT("Texture Name"), m_Config.strTextureName[0], MAX_PATH, m_Config.strTextureName[0] );
|
||
|
|
|
||
|
|
RegCloseKey( hkey );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Name: ss_ReadSettings()
|
||
|
|
// Desc:
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
VOID CPipesScreensaver::ss_ReadSettings()
|
||
|
|
{
|
||
|
|
// Get registry settings
|
||
|
|
if( ss_RegistrySetup( IDS_SAVERNAME, IDS_INIFILE ) )
|
||
|
|
{
|
||
|
|
m_Config.nJointType = ss_GetRegistryInt( IDS_JOINTTYPE, 0 );
|
||
|
|
m_Config.bTextured = (ss_GetRegistryInt( IDS_SURFSTYLE, 0 ) == 1);
|
||
|
|
if( m_Config.bTextured )
|
||
|
|
m_Config.bDefaultTexture = TRUE;
|
||
|
|
|
||
|
|
m_Config.bMultiPipes = ss_GetRegistryInt( IDS_MULTIPIPES, 0 );
|
||
|
|
ss_GetRegistryString( IDS_TEXTURE, 0, m_Config.strTextureName[0], MAX_PATH);
|
||
|
|
if( lstrlen(m_Config.strTextureName[0]) > 0 )
|
||
|
|
m_Config.bDefaultTexture = FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Name: ss_GetRegistryString()
|
||
|
|
// Desc:
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
BOOL CPipesScreensaver::ss_RegistrySetup( int section, int file )
|
||
|
|
{
|
||
|
|
if( LoadString(m_hInstance, section, g_szSectName, BUF_SIZE) &&
|
||
|
|
LoadString(m_hInstance, file, g_szFname, BUF_SIZE) )
|
||
|
|
{
|
||
|
|
TCHAR pBuffer[100];
|
||
|
|
DWORD dwRealSize = GetPrivateProfileSection( g_szSectName, pBuffer, 100, g_szFname );
|
||
|
|
if( dwRealSize > 0 )
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Name: ss_GetRegistryString()
|
||
|
|
// Desc:
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
int CPipesScreensaver::ss_GetRegistryInt( int name, int iDefault )
|
||
|
|
{
|
||
|
|
TCHAR szItemName[BUF_SIZE];
|
||
|
|
|
||
|
|
if( LoadString( m_hInstance, name, szItemName, BUF_SIZE ) )
|
||
|
|
return GetPrivateProfileInt(g_szSectName, szItemName, iDefault, g_szFname);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Name: ss_GetRegistryString()
|
||
|
|
// Desc:
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
VOID CPipesScreensaver::ss_GetRegistryString( int name, LPTSTR lpDefault,
|
||
|
|
LPTSTR lpDest, int bufSize )
|
||
|
|
{
|
||
|
|
TCHAR szItemName[BUF_SIZE];
|
||
|
|
|
||
|
|
if( LoadString( m_hInstance, name, szItemName, BUF_SIZE ) )
|
||
|
|
GetPrivateProfileString(g_szSectName, szItemName, lpDefault, lpDest,
|
||
|
|
bufSize, g_szFname);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Name: WriteSettings()
|
||
|
|
// Desc:
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
VOID CPipesScreensaver::WriteSettings()
|
||
|
|
{
|
||
|
|
HKEY hkey;
|
||
|
|
DWORD dwType = REG_DWORD;
|
||
|
|
DWORD dwLength = sizeof(DWORD);
|
||
|
|
|
||
|
|
if( ERROR_SUCCESS == RegCreateKeyEx( HKEY_CURRENT_USER, m_strRegPath,
|
||
|
|
0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hkey, NULL ) )
|
||
|
|
{
|
||
|
|
WriteScreenSettings( hkey );
|
||
|
|
|
||
|
|
// DXUtil_WriteBoolRegKey( hkey, TEXT("Flex Mode"), m_Config.bFlexMode );
|
||
|
|
DXUtil_WriteBoolRegKey( hkey, TEXT("MultiPipes"), m_Config.bMultiPipes );
|
||
|
|
DXUtil_WriteBoolRegKey( hkey, TEXT("Textured"), m_Config.bTextured );
|
||
|
|
DXUtil_WriteBoolRegKey( hkey, TEXT("Default Texture"), m_Config.bDefaultTexture );
|
||
|
|
DXUtil_WriteIntRegKey( hkey, TEXT("Tessel Factor"), m_Config.dwTesselFact );
|
||
|
|
DXUtil_WriteIntRegKey( hkey, TEXT("Joint Type"), m_Config.nJointType );
|
||
|
|
DXUtil_WriteStringRegKey( hkey, TEXT("Texture Name"), m_Config.strTextureName[0] );
|
||
|
|
DXUtil_WriteIntRegKey( hkey, TEXT("Speed"), m_Config.dwSpeed );
|
||
|
|
|
||
|
|
RegCloseKey( hkey );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Name: iRand()
|
||
|
|
// Desc: Generates integer random number 0..(max-1)
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
int CPipesScreensaver::iRand( int max )
|
||
|
|
{
|
||
|
|
return (int) ( max * ( ((float)rand()) / ((float)(RAND_MAX+1)) ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Name: iRand2()
|
||
|
|
// Desc: Generates integer random number min..max
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
int CPipesScreensaver::iRand2( int min, int max )
|
||
|
|
{
|
||
|
|
if( min == max )
|
||
|
|
{
|
||
|
|
return min;
|
||
|
|
}
|
||
|
|
else if( max < min )
|
||
|
|
{
|
||
|
|
int temp = min;
|
||
|
|
min = max;
|
||
|
|
max = temp;
|
||
|
|
}
|
||
|
|
|
||
|
|
return min + (int) ( (max-min+1) * ( ((float)rand()) / ((float)(RAND_MAX+1)) ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Name: fRand()
|
||
|
|
// Desc: Generates float random number min...max
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
FLOAT CPipesScreensaver::fRand( FLOAT min, FLOAT max )
|
||
|
|
{
|
||
|
|
FLOAT diff;
|
||
|
|
|
||
|
|
diff = max - min;
|
||
|
|
return min + ( diff * ( ((float)rand()) / ((float)(RAND_MAX)) ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Name: RandInit()
|
||
|
|
// Desc: Initializes the randomizer
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
VOID CPipesScreensaver::RandInit()
|
||
|
|
{
|
||
|
|
struct _timeb time;
|
||
|
|
|
||
|
|
_ftime( &time );
|
||
|
|
srand( time.millitm );
|
||
|
|
|
||
|
|
for( int i = 0; i < 10; i ++ )
|
||
|
|
rand();
|
||
|
|
}
|
||
|
|
|