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最新推荐文章于 2025-04-14 09:03:46 发布

原创最新推荐文章于 2025-04-14 09:03:46 发布 · 657 阅读

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#buffer #video #null #struct

typedef struct RGB_VALUE
{
int nRed;
int nGreen;
int nBule;
}RGBVALUE;
RGBVALUE GetRGBValue(COLORREF color)
{
RGBVALUE stRGB;
stRGB.nRed = color&RGB(255,0,0);
stRGB.nGreen = (color&RGB(0,255,0)) >> 8;
stRGB.nBule = (color&RGB(0,0,255)) >> 16;
return stRGB;

}

else if (true == bPixel)
{
  memset(&DDde,0,sizeof(DDde));
  DDde.dwSize = sizeof(DDde);

  lpOBuf[nNum]->Lock(NULL, &DDde,
   DDLOCK_SURFACEMEMORYPTR | DDLOCK_WAIT, NULL);


  if (16 == PixelMode)
  {
   COLORREF color = RGB(255,0,255);
   RGBVALUE stRGB = GetRGBValue(color);
   color = _RGB16BIT565(stRGB.nRed,stRGB.nGreen,stRGB.nBule);   int mempitch = DDde.lPitch/2;
   WORD * video_buffer = (WORD *)DDde.lpSurface;
   for (int nRow = 0; nRow < height; nRow++)
   {
    for ( int nCol = 0; nCol < width; nCol++)
    {
     video_buffer[nCol+nRow*mempitch] = color;
    }
   }
  }
  else if (32 == PixelMode)
  {
   COLORREF color = RGB(128,128,128);
   RGBVALUE stRGB = GetRGBValue(color);
   color = _RGB32BIT(0, stRGB.nRed, stRGB.nGreen, stRGB.nBule);
   int mempitch = DDde.lPitch/4;
   DWORD * video_buffer = (DWORD *)DDde.lpSurface;
   for (int nRow = 0; nRow < height; nRow++)
   {
    for ( int nCol = 0; nCol < width; nCol++)
    {
     video_buffer[nCol+nRow*mempitch] = color;
    }
   }
  }

  lpOBuf[nNum]->Unlock(NULL);
}