/*!
*************************************************************************************
* \function ConvertRGBToBMPBuffer
*
* \brief
* This function converts RGB to BMP buffer
*
*
*************************************************************************************
*/
BYTE*
ConvertRGBToBMPBuffer ( BYTE* Buffer, int width, int height, long* newsize )
{
FwiSize roiSize ;
if ( ( NULL == Buffer ) || ( width == 0 ) || ( height == 0 ) )
return NULL;
roiSize.width = width ;
roiSize.height = height ;
if ( fwiMirror_8u_C3IR(Buffer, width*3, roiSize, fwAxsHorizontal) < 0 )
return NULL ;
int padding = 0;
int scanlinebytes = width * 3;
while ( ( scanlinebytes + padding ) % 4 != 0 )
padding++;
int psw = scanlinebytes + padding;
*newsize = height * psw;
BYTE* newbuf = new BYTE[*newsize];
memset ( newbuf, 0, *newsize );
long bufpos = 0;
long newpos = 0;
for ( int y = 0; y < height; y++ )
for ( int x = 0; x < 3 * width; x+=3 )
{
bufpos = y * 3 * width + x;
newpos = ( height - y - 1 ) * psw + x;
newbuf[newpos] = Buffer[bufpos];
newbuf[newpos + 1] = Buffer[bufpos + 1];
newbuf[newpos + 2] = Buffer[bufpos+2];
}
return newbuf;
}
int writeBmpFile(const char *fName, unsigned char *pImageBuffer, unsigned long int imageSize, unsigned int width, unsigned int height)
{
bmpInfo_t bmpInfo;
bmpInfo.bfType[0] = 'B' ;
bmpInfo.bfType[1] = 'M' ;
bmpInfo.bfSize = imageSize+54 ;
bmpInfo.bfReserved1 = 0 ;
bmpInfo.bfReserved2 = 0 ;
bmpInfo.bfOffBits = 54 ;
/* Image Header */
bmpInfo.biSize = 40 ;
bmpInfo.biWidth = width;
bmpInfo.biHeight= height;
bmpInfo.biPlanes = 1 ;
bmpInfo.biBitCount = 24 ;
bmpInfo.biCompression = 0 ;
bmpInfo.biSizeImage = imageSize ;
bmpInfo.biXPelsPerMeter = 0 ;
bmpInfo.biYPelsPerMeter = 0 ;
bmpInfo.biClrUsed = 0 ;
bmpInfo.biClrImportant = 0 ;
FILE* fp;
fopen_s(&fp,fName,"wb");
// write the bitmap file
/* BMP File Header */
fwrite(&bmpInfo.bfType[0], 1, 2, fp ) ; /* The characters "BM" */
fwrite(&bmpInfo.bfSize, 1, 4, fp ) ; /* The size of the file in bytes */
fwrite(&bmpInfo.bfReserved1, 1, 2, fp ) ; /* Unused - must be zero */
fwrite(&bmpInfo.bfReserved2, 1, 2, fp ) ; /* Unused - must be zero */
fwrite(&bmpInfo.bfOffBits, 1, 4, fp ) ; /* Offset to start of Pixel Data */
/* BMP Image Header */
fwrite(&bmpInfo.biSize, 1, 4, fp ) ; /* Header Size - Must be at least 40 */
fwrite(&bmpInfo.biWidth, 1, 4, fp ) ; /* Image width in pixels */
fwrite(&bmpInfo.biHeight, 1, 4, fp ) ; /* Image height in pixels */
fwrite(&bmpInfo.biPlanes, 1, 2, fp ) ; /* Must be 1 */
fwrite(&bmpInfo.biBitCount, 1, 2, fp ) ; /* Bits per pixel - 1, 2, 4, 8, 16, 24, or 32 */
fwrite(&bmpInfo.biCompression, 1, 4, fp ) ; /* Compression type (0 = uncompressed) */
fwrite(&bmpInfo.biSizeImage, 1, 4, fp ) ; /* Image Size - may be zero for uncompressed images */
fwrite(&bmpInfo.biXPelsPerMeter, 1, 4, fp ) ; /* Preferred resolution in pixels per meter */
fwrite(&bmpInfo.biYPelsPerMeter, 1, 4, fp ) ; /* Preferred resolution in pixels per meter */
fwrite(&bmpInfo.biClrUsed, 1, 4, fp ) ; /* Number Color Map entries that are actually used */
fwrite(&bmpInfo.biClrImportant, 1, 4, fp ) ; /* Number of significant colors */
//flip the image before writing to file
Fw8u *temp = (Fw8u*)malloc(imageSize);
memcpy(temp,pImageBuffer,imageSize);
FwiSize roiSize;
roiSize.width = width;
roiSize.height = height;
#if 0
fwiMirror_8u_C3IR(temp, width*3, roiSize, fwAxsHorizontal);//flip along horizontal axis
#endif
fwrite(temp,1,imageSize,fp);
fclose(fp);
free(temp);
return 0;
}