?? dib.cpp
字號:
// 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::CopyDC ( CDC *pDC, int x, int y )
{
SetDIBitsToDevice ( pDC->m_hDC, x, y, m_Size.cx, m_Size.cy, 0, 0, 0, m_Size.cy, m_Bits, &m_Info, 0);
}
void CDib::PasteDC ( CDC *pDC, int x, int y, int w, int h )
{
// If DibSize Wrong Re-Create Dib
if ( (m_Size.cx!=w) || (m_Size.cy!=h) )
Create ( w, h );
CDC BufferDC;
CBitmap BufferBitmap, *OldBitmap;
BufferDC.CreateCompatibleDC ( pDC );
BufferBitmap.CreateCompatibleBitmap ( pDC, w, h );
OldBitmap=BufferDC.SelectObject ( &BufferBitmap );
BufferDC.FillSolidRect ( 0, 0, w, h, 0 );
BufferDC.BitBlt ( 0, 0, w, h, pDC, x, y, SRCCOPY );
BufferDC.SelectObject ( OldBitmap );
GetDIBits ( pDC->m_hDC, HBITMAP(BufferBitmap), 0, h, m_Bits, &(m_Info), DIB_RGB_COLORS );
}
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 )
{
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-- )
{
int Difference;
Difference=src[0]-dst[0];
dst[0]=(BYTE)((Difference<0) ? -Difference : Difference);
Difference=src[1]-dst[1];
dst[1]=(BYTE)((Difference<0) ? -Difference : Difference);
Difference=src[2]-dst[2];
dst[2]=(BYTE)((Difference<0) ? -Difference : Difference);
dst+=4;
src+=4;
}
}
void CDib::Lighten ( 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::Multiply ( 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]))>>8);
dst[1]=(BYTE)(((src[1])*(dst[1]))>>8);
dst[2]=(BYTE)(((src[2])*(dst[2]))>>8);
dst+=4;
src+=4;
}
}
void CDib::Screen ( 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)(255-(((255-src[0])*(255-dst[0]))>>8));
dst[1]=(BYTE)(255-(((255-src[1])*(255-dst[1]))>>8));
dst[2]=(BYTE)(255-(((255-src[2])*(255-dst[2]))>>8));
dst+=4;
src+=4;
}
}
//////////////////////////////////////////////////////////////////////
// Rectangle Functions
//////////////////////////////////////////////////////////////////////
void CDib::CopyRect ( CDib *Dib, int x, int y )
{
// Clip Rect
int px=(x>=0) ? x : 0;
int py=(y>=0) ? y : 0;
int dx=((x+Dib->m_Size.cx)<m_Size.cx) ? Dib->m_Size.cx : m_Size.cx-x;
int dy=((y+Dib->m_Size.cy)<m_Size.cy) ? Dib->m_Size.cy : m_Size.cy-y;
dx=(x>=0) ? dx : dx + x;
dy=(y>=0) ? dy : dy + y;
// If Nothing to Copy return
if ( (dx<=0) || (dy<=0) )
return;
// If DibSize Wrong Re-Create Dib
if ( (dx!=Dib->m_Size.cx) || (dy!=Dib->m_Size.cy) )
Dib->Create ( dx, dy );
// Prepare Buffer Addresses
COLORREF *src=m_Bits+(py*m_Size.cx)+px;
COLORREF *dst=Dib->m_Bits;
// Do Copy
while ( dy-- )
{
for ( int i=0; i<dx; i++ )
dst[i]=src[i];
src+=m_Size.cx;
dst+=Dib->m_Size.cx;
}
}
void CDib::PasteRect ( CDib *Dib, int x, int y )
{
// Clip Rect
int px=(x>=0) ? x : 0;
int py=(y>=0) ? y : 0;
int dx=((x+Dib->m_Size.cx)<m_Size.cx) ? Dib->m_Size.cx : m_Size.cx-x;
int dy=((y+Dib->m_Size.cy)<m_Size.cy) ? Dib->m_Size.cy : m_Size.cy-y;
dx=(x>=0) ? dx : dx + x;
dy=(y>=0) ? dy : dy + y;
// If Nothing to Paste return
if ( (dx<=0) || (dy<=0) )
return;
// Prepare Buffer Addresses
COLORREF *src=Dib->m_Bits+((py-y)*Dib->m_Size.cx)+px-x;
COLORREF *dst=m_Bits+(py*m_Size.cx)+px;
// Do Paste
while ( dy-- )
{
for ( int i=0; i<dx; i++ )
dst[i]=src[i];
src+=Dib->m_Size.cx;
dst+=m_Size.cx;
}
}
void CDib::FillRect ( int x, int y, int w, int h, int R, int G, int B )
{
// Clip Rect
int px=(x>=0) ? x : 0;
int py=(y>=0) ? y : 0;
int dx=((x+w)<m_Size.cx) ? w : m_Size.cx-x;
int dy=((y+h)<m_Size.cy) ? h : m_Size.cy-y;
dx=(x>=0) ? dx : dx + x;
dy=(y>=0) ? dy : dy + y;
// If Nothing to Fill return
if ( (dx<=0) || (dy<=0) )
return;
// Prepare Buffer Address
COLORREF *dst=m_Bits+(py*m_Size.cx)+px;
COLORREF Color=RGB ( B, G, R );
// Do Fill
while ( dy-- )
{
for ( int i=0; i<dx; i++ )
{
dst[i]=Color;
}
dst+=m_Size.cx;
}
}
void CDib::FillGlassRect ( int x, int y, int w, int h, int R, int G, int B, int A )
{
// Clip Rect
int px=(x>=0) ? x : 0;
int py=(y>=0) ? y : 0;
int dx=((x+w)<m_Size.cx) ? w : m_Size.cx-x;
int dy=((y+h)<m_Size.cy) ? h : m_Size.cy-y;
dx=(x>=0) ? dx : dx + x;
dy=(y>=0) ? dy : dy + y;
// If Nothing to FillGlass return
if ( (dx<=0) || (dy<=0) )
return;
// Prepare Buffer Address
BYTE *dst=(BYTE *)m_Bits+((py*m_Size.cx)+px)*4;
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