//************************************************************************
CDib::CDib(PDIB pdib, LPTR lp, BOOL fCopyBits)
//************************************************************************
{
m_bmiHeader = *pdib->GetInfoHeader();
hmemcpy( m_rgbQuad, pdib->GetColors(), sizeof(m_rgbQuad));
m_lp = lp;
if (fCopyBits)
hmemcpy(m_lp, pdib->GetPtr(), pdib->GetSizeImage());
m_iRefCount = 0;
AddRef();
}
//************************************************************************
BOOL CDib::Create( PDIB pdib )
//************************************************************************
{
DWORD dwSizeImage;
dwSizeImage = pdib->GetSizeImage();
if ( !(m_lp = AllocX( dwSizeImage + 1024, GMEM_ZEROINIT )) )
{
return FALSE;
}
m_bmiHeader = *pdib->GetInfoHeader();
hmemcpy( m_rgbQuad, pdib->GetColors(), sizeof(m_rgbQuad));
hmemcpy(m_lp, pdib->GetPtr(), pdib->GetSizeImage());
return TRUE;
}
BOOL CAliasApp::AntiAliasDib(PDIB pForeDib, PDIB pCompDib)
{
#ifndef CPO
if (pForeDib->GetHeight() != pCompDib->GetHeight() ||
pForeDib->GetWidth() != pCompDib->GetWidth())
{
MessageBox(NULL, "Bitmaps are different sizes", "Error", MB_ICONSTOP|MB_OK);
return(FALSE);
}
if (pForeDib->GetBitCount() != 24 ||
pCompDib->GetBitCount() != 24)
{
MessageBox(NULL, "Bitmaps must both be 24-bits", "Error", MB_ICONSTOP|MB_OK);
return(FALSE);
}
RGBS rgb;
BOOL fColor;
LPTR lpFore = pForeDib->GetPtr();
if (FALSE)
rgb.red = rgb.green = rgb.blue = 148;
else
rgb = *((LPRGB)pForeDib->GetXY(0, 0));
BYTE r = rgb.red;
BYTE g = rgb.green;
BYTE b = rgb.blue;
fColor = ((r == 255 && g == 0 && b == 0) || // red
(r == 0 && g == 255 && b == 0) || // green
(r == 0 && g == 0 && b == 255) || // blue
(r == 0 && g == 255 && b == 255) || // cyan
(r == 255 && g == 0 && b == 255) || // magenta
(r == 255 && g == 255 && b == 0)); // yellow
if (!fColor)
{
m_rgbTrans.red = 255;
m_rgbTrans.green = 0;
m_rgbTrans.blue = 255;
}
else
{
m_rgbTrans = rgb;
}
#endif
LPTR lpComp = pCompDib->GetPtr();
UINT uWidthBytes = pCompDib->GetWidthBytes();
int iHeight = abs(pCompDib->GetHeight());
while (--iHeight >= 0)
{
int iWidth = pCompDib->GetWidth();
LPRGB lpC = (LPRGB)lpComp;
m_Quantize.CountFrequencies((LPRGBTRIPLE)lpComp, iWidth);
#ifndef CPO
LPRGB lpF = (LPRGB)lpFore;
while (--iWidth >= 0)
{
if (lpF->red != r || lpF->green != g || lpF->blue != b)
{
*lpF++ = *lpC++;
}
else
{
if (!fColor)
{
lpF->red = 255;
lpF->green = 0;
lpF->blue = 255;
}
++lpF;
++lpC;
}
}
lpFore += uWidthBytes;
#endif
lpComp += uWidthBytes;
}
return(TRUE);
}
