144 lines
2.4 KiB
C++
144 lines
2.4 KiB
C++
#include "StdAfx.h"
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#include <assert.h>
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#include "Image.h"
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CImage::CImage(CImage & image)
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{
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Initialize();
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int w = image.GetWidth();
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int h = image.GetHeight();
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Create(w, h);
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DWORD * pdwDest = GetBasePointer();
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DWORD * pdwSrc = image.GetBasePointer();
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memcpy(pdwDest, pdwSrc, w * h * sizeof(DWORD));
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}
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void CImage::SetFileName(const char* c_szFileName)
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{
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m_stFileName = c_szFileName;
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}
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const std::string& CImage::GetFileNameString()
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{
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return m_stFileName;
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}
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void CImage::PutImage(int x, int y, CImage* pImage)
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{
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assert(x >= 0 && x + pImage->GetWidth() <= GetWidth());
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assert(y >= 0 && y + pImage->GetHeight() <= GetHeight());
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int len = pImage->GetWidth() * sizeof(DWORD);
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for (int j = 0; j < pImage->GetHeight(); ++j)
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{
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DWORD * pdwDest = GetLinePointer(y + j) + x;
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memcpy(pdwDest, pImage->GetLinePointer(j), len);
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}
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}
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DWORD* CImage::GetBasePointer()
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{
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assert(m_pdwColors != NULL);
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return m_pdwColors;
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}
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DWORD* CImage::GetLinePointer(int line)
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{
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assert(m_pdwColors != NULL);
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return m_pdwColors + line * m_width;
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}
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int CImage::GetWidth() const
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{
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assert(m_pdwColors != NULL);
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return m_width;
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}
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int CImage::GetHeight() const
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{
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assert(m_pdwColors != NULL);
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return m_height;
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}
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void CImage::Clear(DWORD color)
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{
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assert(m_pdwColors != NULL);
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for (int y = 0; y < m_height; ++y)
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{
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DWORD * colorLine = &m_pdwColors[y * m_width];
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for (int x = 0; x < m_width; ++x)
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colorLine[x] = color;
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}
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}
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void CImage::Create(int width, int height)
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{
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Destroy();
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m_width = width;
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m_height = height;
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m_pdwColors = new DWORD[m_width*m_height];
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}
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void CImage::Destroy()
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{
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if (m_pdwColors)
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{
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delete [] m_pdwColors;
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m_pdwColors = NULL;
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}
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}
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void CImage::Initialize()
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{
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m_pdwColors = NULL;
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m_width = 0;
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m_height = 0;
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}
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bool CImage::IsEmpty() const
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{
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return (m_pdwColors == NULL) ? true : false;
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}
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void CImage::FlipTopToBottom()
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{
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DWORD * swap = new DWORD[m_width * m_height];
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int row;
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UINT width = GetWidth();
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UINT height = GetHeight();
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DWORD * end_row;
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DWORD * start_row;
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for (row = 0; row < GetHeight() / 2; row++)
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{
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end_row = &(m_pdwColors[width * (height - row - 1)]);
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start_row = &(m_pdwColors[width * row]);
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memcpy(swap, end_row, width * sizeof(DWORD));
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memcpy(end_row, start_row, width * sizeof(DWORD));
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memcpy(start_row, swap, width * sizeof(DWORD));
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}
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delete [] swap;
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}
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CImage::CImage()
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{
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Initialize();
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}
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CImage::~CImage()
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{
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Destroy();
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}
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