ieimage.cpp

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// IEImage.cpp: implementation of the IEImage class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "IEImage.h"
#include "IEDib.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

template class IEImage< BYTE >;
template class IEImage< int >;
template class IEImage< float >;

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

template< class T > IEImage< T >::IEImage()
{
	width = height = 0; 
	pixels = NULL;
}

template< class T > IEImage< T >::IEImage(int w, int h)
{
	width = w;
	height = h;

	int size = w*h;	// size = GetSize(); 客 鞍促.

	// 捞固瘤 单捞磐(侨伎) 历厘 傍埃 且寸 棺 2-D Interface 累己
	//
	// pixels ---> [ ] pixels[0] ---> [ ][ ][ ]...[ ][ ][ ]...[ ][ ][ ] 
	//             [ ] pixels[1] ------------------|           |
	//             ...                                         |
	//             [ ] pixels[h-1]------------------------------
	//
	pixels = new T*[sizeof(T *)*height];
	pixels[0] = new T[sizeof(T)*size];

	for( int i = 1 ; i < h ; i++ )
		pixels[i] = pixels[i-1] + width;

	// 侨伎 蔼 檬扁拳(zero)
	memset(pixels[0], 0, sizeof(T)*size);
}

template< class T > IEImage< T >::IEImage(const IEImage<T>& img)
{
	width  = img.width;
	height = img.height;
	
	int size = width*height;	// size = GetSize(); 客 鞍促.

	// 捞固瘤 单捞磐(侨伎) 历厘 傍埃 且寸 棺 2-D Interface 累己
	pixels = new T*[sizeof(T *)*height];
	pixels[0] = new T[sizeof(T)*size];

	for( int i = 1 ; i < height ; i++ )
		pixels[i] = pixels[i-1] + width;

	// 侨伎 蔼 檬扁拳(copy)
	memcpy(pixels[0], img.pixels[0], sizeof(T)*size);
}

template< class T > IEImage< T >::~IEImage()
{ 
	DestroyImage();
}

template< class T > void IEImage< T >::MakeImage(int w, int h)
{
	DestroyImage(); 

	width = w;
	height = h;

	int size = w*h;	// size = GetSize(); 客 鞍促.

	// 捞固瘤 单捞磐(侨伎) 历厘 傍埃 且寸 棺 2-D Interface 累己
	pixels = new T*[sizeof(T *)*height];
	pixels[0] = new T[sizeof(T)*size];

	for( int i = 1 ; i < height ; i++ )
		pixels[i] = pixels[i-1] + width;

	// 侨伎 蔼 檬扁拳(zero)
	memset(pixels[0], 0, sizeof(T)*size);
}

template< class T > void IEImage< T >::DestroyImage() 
{
	if( pixels != NULL )
	{
		delete [] pixels[0];
		delete [] pixels;

		pixels = NULL;
	}

	width = height = 0;
}

template< class T > BOOL IEImage< T >::ReadImage(char * name)
{
	// 

	return TRUE;
}

template< class T > BOOL IEImage< T >::WriteImage(char * name)
{
	//

	return TRUE;
}

template< class T > void IEImage< T >::SetPixels(int w, int h, T* data)
{
	MakeImage(w, h);

	memcpy(pixels, data, GetSize()*sizeof(T));
}

template< class T > T IEImage< T >::GetMax()
{
	T res = pixels[0][0];
	int size = GetSize();
	for( int i = 0 ; i < size ; i++ )
		res = ( res > pixels[0][i] ) ? res : pixels[0][i];

	return res;
}

template< class T > T IEImage< T >::GetMin()
{
	T res = pixels[0][0];
	int size = GetSize();
	for( int i = 0 ; i < size ; i++ )
		res = ( res < pixels[0][i] ) ? res : pixels[0][i];

	return res;
}

template< class T > IEImage< T >& IEImage< T >::operator=(const IEImage< T >& img)
{
	if( this != &img )
	{
		width = img.width;
		height = img.height;

		MakeImage(width, height);

		memcpy(pixels[0], img.pixels[0], GetSize()*sizeof(T));
	}

	return *this;
}

template< class T > BOOL IEImage< T >::operator==(const IEImage< T >& img)
{
	if( width == img.width && height == img.height )
		return (!memcmp(pixels[0], img.pixels[0], GetSize()*sizeof(T)));
	else
		return FALSE; 
}

template< class T > BOOL IEImage< T >::operator!=(const IEImage< T >& img)
{
	if( width == img.width && height == img.height )
		return (memcmp(pixels[0], img.pixels[0], GetSize()*sizeof(T)));
	else
		return (width != img.width && height != img.height); 
}

template< class T > BOOL IEImage< T >::FromDib(IEDib* pDib)
{
	int i, j;
	int w = pDib->GetWidth();
	int h = pDib->GetHeight();
	
	MakeImage(w, h);
	
	BYTE** src = pDib->GetPtr();
	
	for( j = 0 ; j < h ; j++ )
	for( i = 0 ; i < w ; i++ )
	{
		pixels[j][i] = (T)src[j][i];
	}
	
	pDib->FreePtr(src);
	
	return TRUE;
}