newfile.cpp

图像处理源代码VC

/**********************    COMAPI.CPP   *******************************/
#include "stdafx.h"
#include <io.h>
#include <direct.h>
#include <afxext.h>
#include "comapi.h"

#include "fig2.h"


/*****************************   fspace_1d  **************************/
/*  To allocation a 1_dimension dynamic array  */
/*
void* WINAPI fspace_1d(WORD col,WORD length)
{
	void *b;
	
	b = (void *)calloc(length,col);
	if (b==NULL){
	//	MessageBox("Memory error 1");  
		exit(1);
	}
	return(b);
}
*/
/*************      fspace_2d    ***************************************/
/*  To allocation a 2_dimension dynamic array  */

void** WINAPI fspace_2d(WORD row,WORD col,WORD lenth)
{
  int i;
  void **b;

  b = (void **)calloc(sizeof(void *),row);
  if (b==NULL)
  {
      //MessageBox("Memory error 1");
	  exit(1);
  }
  for(i=0;i<row;i++)
  {
    b[i] = (void *)calloc(lenth,col);
    if (b[i]==NULL)
    {
      //MessageBox("Memory error 2");
      exit(1);
    }
  }
  return(b);
}

/*******************************  ffree_2d   ****************************/
/*  To free a 2_dimension dynamic array  */

void WINAPI ffree_2d(void **a,WORD row)
{
  int i;

  for(i=0;i<row;i++) free(a[i]);
  free(a);
}

//--copy dib data to 2-D array
unsigned char ** WINAPI DIBToArray(HDIB hDIB,WORD &wHeight,
								   WORD &wWidth)
{
	WORD wNewWidth;
	DWORD dwSize;
	LPSTR lpDIBHdr;
	LPSTR lpDIBBits;
	unsigned char** uppImage;
	lpDIBHdr=(LPSTR)::GlobalLock((HGLOBAL)hDIB);
	lpDIBBits=::FindDIBBits(lpDIBHdr);
	wHeight=(WORD)(::DIBHeight(lpDIBHdr));
	wWidth=(WORD)(::DIBWidth(lpDIBHdr));
	wNewWidth=(((wWidth*8)+31)/32)*4;
	dwSize=(DWORD)wNewWidth*wHeight;
	DWORD dwOffset=dwSize;


	uppImage=(unsigned char**)fspace_2d(wHeight,wWidth,
		                                sizeof(unsigned char));
	for(WORD i=0;i<wHeight;i++){
		dwOffset-=wNewWidth;
		for(WORD j=0;j<wWidth;j++)
			uppImage[i][j]=*(lpDIBBits+dwOffset+j);
	}
/*/
    for(WORD i=0;i<wHeight;i++){
		for(WORD j=0;j<wWidth;j++)
			uppImage[i][j]=*(lpDIBBits+(long)i*wWidth+j);
	}
/*/
	::GlobalUnlock((HGLOBAL)hDIB);
	return(uppImage);
}

//copy a 2-D array to a dib data
void  WINAPI ArrayToDIB(WORD wHeight,WORD wWidth,
						unsigned char **Image,HDIB hDIB)
{
	WORD wNewWidth;
	DWORD dwSize;
	LPSTR lpDIBHdr;
	LPSTR lpDIBBits;
	
	lpDIBHdr=(LPSTR)::GlobalLock((HGLOBAL)hDIB);
	lpDIBBits=::FindDIBBits(lpDIBHdr);
	wNewWidth=(((wWidth*8)+31)/32)*4;
	dwSize=(DWORD)wNewWidth*wHeight;
	DWORD dwOffset=dwSize;
	for(WORD i=0;i<wHeight;i++){
		dwSize-=wNewWidth;
		for(WORD j=0;j<wWidth;j++)
			*(lpDIBBits+dwSize+j)=Image[i][j];
	}
/*/
	for(WORD i=0;i<wHeight;i++){
		for(WORD j=0;j<wWidth;j++)
			*(lpDIBBits+(long)i*wWidth+j)=Image[i][j];
	}
/*/    

	::GlobalUnlock((HGLOBAL)hDIB);
}