BOOL ContBritImage(LPIMAGE lpImage, LPCONTBRIT_PARMS lpParms)
/************************************************************************/
{
LPMAPS lpMaps;
int i;
RECT rUpdate;
UPDATE_TYPE UpdateType;
FRMDATATYPE type;
ImgGetInfo(lpImage, NULL, NULL, NULL, &type);
if (type == FDT_LINEART)
return(FALSE);
else if (type == FDT_PALETTECOLOR && ImgGetMask(lpImage))
return(FALSE);
if (!(lpMaps = (LPMAPS)Alloc((long)sizeof(MAPS))))
{
lpParms->Common.StatusCode = SC_MEMERROR;
Message(IDS_EMEMALLOC);
return(FALSE);
}
ProgressBegin(1, lpParms->Common.idDirty-IDS_UNDOFIRST+IDS_PROGFIRST);
ResetMapEx( &lpMaps->MasterMap, MAPPOINTS, NO, YES);
ResetMap( &lpMaps->RedMap, MAPPOINTS, NO ); // sometimes Cyan
ResetMap( &lpMaps->GreenMap, MAPPOINTS, NO ); // sometimes Magenta
ResetMap( &lpMaps->BlueMap, MAPPOINTS, NO ); // sometimes Yellow
ResetMap( &lpMaps->BlackMap, MAPPOINTS, NO );
ResetMap( &lpMaps->HueMap, MAXPOINTS, NO );
ResetMap( &lpMaps->SatMap, MAPPOINTS, NO );
lpMaps->MasterMap.Contrast = lpParms->Contrast;
for (i = 0; i < NUM_BANDS; ++i)
lpMaps->MasterMap.Brightness[i] = lpParms->Brightness[i];
MakeMap(&lpMaps->MasterMap);
lpParms->Common.StatusCode = ApplyMaps(lpImage, lpMaps, lpParms->Common.idDirty, &rUpdate, &UpdateType);
if (UpdateType)
{
lpParms->Common.UpdateType = UpdateType;
lpParms->Common.rUpdateArea = rUpdate;
}
FreeUp(lpMaps);
ProgressEnd();
return(lpParms->Common.StatusCode == SC_SUCCESS);
}
// Uses Mapping.Quarter_HSacrifice & Mapping.Quarter_SSacrifice
// to set the highlights midtones and shaddows.
void CToneBalanceDlg::set_sacrifice(LPQUARTERSTRUCT lpData, WORD wChannel)
{
LPMAP lpMap;
LPDWORD lpHisto;
BOOL bInv;
LONG lSum, lSearch, lTotal;
int hi, lo, i;
// get the map & set its invert flags
lpMap = tone_activate_channel( wChannel );
lpHisto = get_histo(lpData->lpHistos, wChannel, &bInv);
// determine initail values
hi = 170;
lo = 85;
if (lpHisto)
{
// Find the total of all entries to scale
lTotal = 0;
for ( i=0; i<256; i++ )
lTotal += lpHisto[i];
// find the sacrafice
lSearch = bInv ? m_nHSacrifice:m_nSSacrifice;
lSearch = FMUL( lTotal, FGET( lSearch, 100 ) );
lSum = -1;
for ( i=0; i<255; i++ )
{
lSum += lpHisto[i];
if ( lSum >= lSearch )
break;
}
lo = i;
// find the sacrafice
lSearch = bInv ? m_nSSacrifice:m_nHSacrifice;
lSearch = FMUL( lTotal, FGET( lSearch, 100 ) );
lSum = -1;
for ( i=255; i>0; i-- )
{
lSum += lpHisto[i];
if ( lSum >= lSearch )
break;
}
hi = i;
}
if (bInv)
{
hi = 255-hi;
lo = 255-lo;
}
i = lo;
lo = min(lo,hi);
hi = max(i,hi);
// setup the map
if (wChannel == IDC_DO_ALL)
ResetMapEx( lpMap, 3, NO, YES);
else
ResetMap( lpMap, 3, NO );
lpMap->Pnt[0].x = lo;
lpMap->Pnt[1].x = lo + (hi-lo)/2;
lpMap->Pnt[2].x = hi;
}
