pixelaccess.cpp

来自「数字图像处理的程序」· C++ 代码 · 共 58 行

//--------------------------------------------------------------------------
//  pixelAccess.cpp
//                       
//                        All copyrights reserved by ECNU
//--------------------------------------------------------------------------
//  Abstract:
//	图像类CDIB的实装
//--------------------------------------------------------------------------
//  Hostory:
//	ver1.0.0
//--------------------------------------------------------------------------
#include "stdafx.h"
#include "cdib.h"


//-----------------------------------------------------------------------------
//图像像素8bit/pixel时的图像像素access函数
unsigned char &CDIB::pix8(int x, int y)
{
#ifdef _DEBUG
    if (m_img->nbit!=8) {
    }
    if (x<0 || x>=m_img->w || y<0 || y>=m_img->h) {
    }
#endif
    return *((unsigned char*)*(m_img->buff+y)+x);
}
//----------------------------------------------------------------------------
//图像像素24bit/pixel时的图像像素access函数

imptype24 &CDIB::pix24(int x, int y)
{
#ifdef _DEBUG
    if (m_img->nbit!=24) {
    }
    if (x<0 || x>=m_img->w || y<0 || y>=m_img->h) {
    }
#endif
    return *((imptype24*)*(m_img->buff+y)+x);
}


//-----------------------------------------------------------------------------
//图像像素32bit/pixel时的图像像素access函数

imptype32 &CDIB::pix32(int x, int y)
{
#ifdef _DEBUG
    if (m_img->nbit!=32) {
    }
    if (x<0 || x>=m_img->w || y<0 || y>=m_img->h) {
    }
#endif
    return *((imptype32*)*(m_img->buff+y)+x);
}