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// Dib.cpp: implementation of the CDib class.
//
// Creator : El Barto (ef00@luc.ac.be)
// Location : http://www.luc.ac.be/~ef00/ebgfx
// Date : 09-04-98
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "Dib.h"
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CDib::CDib ()
{
m_Bits=NULL;
m_Bitmap=NULL;
m_Size=CSize ( 0, 0 );
}
CDib::~CDib ()
{
Destroy ();
}
BOOL CDib::Create ( int Width, int Height )
{
Destroy ();
ZeroMemory ( &m_Info, sizeof (BITMAPINFO) );
m_Info.bmiHeader.biSize=sizeof (BITMAPINFOHEADER);
m_Info.bmiHeader.biWidth=Width;
m_Info.bmiHeader.biHeight=Height;
m_Info.bmiHeader.biPlanes=1;
m_Info.bmiHeader.biBitCount=32;
m_Info.bmiHeader.biCompression=BI_RGB;
m_Info.bmiHeader.biSizeImage=Width*Height*4;
m_Bitmap=CreateDIBSection ( NULL, &m_Info, DIB_RGB_COLORS, (void **)&m_Bits, NULL, NULL );
if ( m_Bitmap )
{
m_Size=CSize ( Width, Height );
return TRUE;
}
else
{
m_Size=CSize ( 0, 0 );
return FALSE;
}
}
BOOL CDib::Destroy ()
{
if ( m_Bitmap )
DeleteObject ( m_Bitmap );
m_Bitmap=NULL;
m_Size=CSize ( 0, 0 );
return TRUE;
}
void CDib::Render ( CDC *pDC, int Width, int Height )
{
SetDIBitsToDevice ( pDC->m_hDC, 0, 0, Width, Height, 0, 0, 0, Height, m_Bits, &m_Info, 0);
}
void CDib::SetBitmap ( CDC *pDC, CBitmap *pBitmap )
{
if ( m_Bitmap )
GetDIBits ( pDC->m_hDC, HBITMAP(*pBitmap), 0, m_Size.cy, m_Bits, &(m_Info), DIB_RGB_COLORS );
}
void CDib::Fill ( int R, int G, int B )
{
COLORREF Color=RGB ( B, G, R );
int Size=m_Size.cx*m_Size.cy;
for ( int i=0; i<Size; i++ )
m_Bits[i]=Color;
}
void CDib::FillGlass ( int R, int G, int B, int A )
{
BYTE *dst=(BYTE*)m_Bits;
int Size=m_Size.cx*m_Size.cy;
while ( Size-- )
{
dst[0]=(BYTE)(((B-dst[0])*A+(dst[0]<<8))>>8);
dst[1]=(BYTE)(((G-dst[1])*A+(dst[1]<<8))>>8);
dst[2]=(BYTE)(((R-dst[2])*A+(dst[2]<<8))>>8);
dst+=4;
}
}
void CDib::FillStippledGlass ( int R, int G, int B )
{
COLORREF Color=RGB ( B, G, R );
int w=m_Size.cx;
int h=m_Size.cy;
for ( int j=0; j<w; j++ )
{
for ( int i=0; i<h; i++ )
{
m_Bits[j*w+i]=((i+j)&0x1) ? m_Bits[j*w+i] : Color;
}
}
}
void CDib::Copy ( CDib *Dib )
{
// If DibSize Wrong Re-Create Dib
if ( (Dib->m_Size.cx!=m_Size.cx) || (Dib->m_Size.cy!=m_Size.cy) )
Dib->Create ( m_Size.cx, m_Size.cy );
// do Copy
memcpy ( Dib->m_Bits, m_Bits, m_Size.cx*m_Size.cy*4 );
}
void CDib::Paste ( CDib *Dib )
{
// If DibSize Wrong Re-Create Dib
if ( (m_Size.cx!=Dib->m_Size.cx) || (m_Size.cy!=Dib->m_Size.cy) )
Create ( Dib->m_Size.cx, Dib->m_Size.cx );
// do Paste
memcpy ( m_Bits, Dib->m_Bits, m_Size.cx*m_Size.cy*4 );
}
void CDib::Blend ( CDib *Dib, int A )
{
if ( m_Size!=Dib->m_Size )
return;
BYTE *src=(BYTE*)Dib->m_Bits;
BYTE *dst=(BYTE*)m_Bits;
int Size=m_Size.cx*m_Size.cy;
while ( Size-- )
{
dst[0]=(BYTE)(((src[0]-dst[0])*A+(dst[0]<<8))>>8);
dst[1]=(BYTE)(((src[1]-dst[1])*A+(dst[1]<<8))>>8);
dst[2]=(BYTE)(((src[2]-dst[2])*A+(dst[2]<<8))>>8);
dst+=4;
src+=4;
}
}
void CDib::Darken ( CDib *Dib )
{
if ( m_Size!=Dib->m_Size )
return;
BYTE *src=(BYTE*)Dib->m_Bits;
BYTE *dst=(BYTE*)m_Bits;
int Size=m_Size.cx*m_Size.cy;
while ( Size-- )
{
dst[0]=(BYTE)((src[0]<dst[0]) ? src[0] : dst[0]);
dst[1]=(BYTE)((src[1]<dst[1]) ? src[1] : dst[1]);
dst[2]=(BYTE)((src[2]<dst[2]) ? src[2] : dst[2]);
dst+=4;
src+=4;
}
}
void CDib::Difference ( CDib *Dib