Impala Documentation

void Impala::Core::Feature::Bitmap::WriteRgbBufferToBitmap	(	BYTE *	buf,
		const int	Width,
		const int	Height,
		const char *	filename
	)			`[inline]`

Definition at line 67 of file Bitmap.h.

References BYTE.

Referenced by SaveGray2BitmapFile(), and SaveRgb2BitmapFile().

00068     {
00069         
00070         // if it is NOT the multiple of 4,just full it to.
00071         int    byteWidth=(3*Width+3)/4*4; 
00072         long   m_ImageSize = byteWidth*Height;
00073 
00074         BITMAPFILEHEADER  bmfHdr; 
00075         BITMAPINFO *pInfo;
00076 
00077         bmfHdr.bfType=0x4d42; //bmfHdr.bfType='MB';
00078         bmfHdr.bfSize=m_ImageSize+sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER); 
00079         bmfHdr.bfReserved1=0; 
00080         bmfHdr.bfReserved2=0; 
00081         bmfHdr.bfOffBits=sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER); 
00082 
00083         // note:
00084         // ------------------------------------------------------------
00085         // If biHeight is positive, the bitmap is a bottom-up DIB and
00086         //           its origin is the lower-left corner. 
00087         // If biHeight is negative, the bitmap is a top-down DIB and 
00088         //           its origin is the upper-left corner. 
00089         // ------------------------------------------------------------
00090         pInfo = (BITMAPINFO*)malloc(sizeof(BITMAPINFOHEADER));
00091         pInfo->bmiHeader.biSize=sizeof(BITMAPINFOHEADER); 
00092         pInfo->bmiHeader.biWidth=Width; 
00093         pInfo->bmiHeader.biHeight=Height; 
00094         pInfo->bmiHeader.biPlanes=1; 
00095         pInfo->bmiHeader.biBitCount=24; 
00096         pInfo->bmiHeader.biCompression=BI_RGB; 
00097         pInfo->bmiHeader.biSizeImage=m_ImageSize; 
00098         pInfo->bmiHeader.biXPelsPerMeter=0; 
00099         pInfo->bmiHeader.biYPelsPerMeter=0; 
00100         pInfo->bmiHeader.biClrUsed=0; 
00101         pInfo->bmiHeader.biClrImportant=0;
00102 
00103         FILE* fp = fopen(filename, "wb");
00104         if (fp==NULL)
00105         {
00106             printf("Can not open the file: %s\n",filename);
00107             return;
00108         }
00109         
00110         fwrite((LPSTR)&bmfHdr,   sizeof(BITMAPFILEHEADER), 1, fp);
00111         fwrite(pInfo,    sizeof(BITMAPINFOHEADER), 1, fp);
00112         fwrite(buf, sizeof(BYTE), m_ImageSize,   fp);
00113 
00114         fclose(fp);
00115         free(pInfo);
00116     }