www.pudn.com > tetris_new.rar > DIBPAL.CPP

///////////////////////////////////////////////////////////////////////////// 
// Copyright (C) 1998 by Jörg König 
// All rights reserved 
// 
// This file is part of the completely free tetris clone "CGTetris". 
// 
// This is free software. 
// You may redistribute it by any means providing it is not sold for profit 
// without the authors written consent. 
// 
// No warrantee of any kind, expressed or implied, is included with this 
// software; use at your own risk, responsibility for damages (if any) to 
// anyone resulting from the use of this software rests entirely with the 
// user. 
// 
// Send bug reports, bug fixes, enhancements, requests, flames, etc., and 
// I'll try to keep a version up to date.  I can be reached as follows: 
//    J.Koenig@adg.de                 (company site) 
//    Joerg.Koenig@rhein-neckar.de    (private site) 
///////////////////////////////////////////////////////////////////////////// 
 
 
#include "stdafx.h" 
#include "dib256.h" 
#include "dibpal.h" 
 
CBmpPalette::CBmpPalette( CDIBitmap* pBmp ) 
{ 
    ASSERT( pBmp ); 
    int cPaletteEntries = pBmp->GetPalEntries(); 
    int cPalette = sizeof(LOGPALETTE) + 
                   sizeof(PALETTEENTRY) * cPaletteEntries; 
    // Since the LOGPALETTE structure is open-ended, you 
    // must dynamically allocate it, rather than using one 
    // off the stack. 
    LOGPALETTE* pPal = (LOGPALETTE*)new BYTE[cPalette]; 
    RGBQUAD*    pColorTab = pBmp->GetColorTablePtr(); 
    pPal->palVersion = 0x300; 
    pPal->palNumEntries = cPaletteEntries; 
    // Roll through the color table, and add each color to 
    // the logical palette. 
    for( int ndx = 0; ndx < cPaletteEntries; ndx++ ) 
    { 
        pPal->palPalEntry[ndx].peRed   = pColorTab[ndx].rgbRed; 
        pPal->palPalEntry[ndx].peGreen = pColorTab[ndx].rgbGreen; 
        pPal->palPalEntry[ndx].peBlue  = pColorTab[ndx].rgbBlue; 
        pPal->palPalEntry[ndx].peFlags = NULL; 
    } 
    VERIFY( CreatePalette( pPal ) ); 
    delete [] (BYTE*)pPal; 
}