/**
* \brief Set decoding behavior property
* \param dec
* \param prop
* \param value
* \return DmtxPass | DmtxFail
*/
extern DmtxPassFail
dmtxDecodeSetProp(DmtxDecode *dec, int prop, int value)
{
switch(prop) {
case DmtxPropEdgeMin:
dec->edgeMin = value;
break;
case DmtxPropEdgeMax:
dec->edgeMax = value;
break;
case DmtxPropScanGap:
dec->scanGap = value; /* XXX Should this be scaled? */
break;
case DmtxPropSquareDevn:
dec->squareDevn = cos(value * (M_PI/180.0));
break;
case DmtxPropSymbolSize:
dec->sizeIdxExpected = value;
break;
case DmtxPropEdgeThresh:
dec->edgeThresh = value;
break;
/* Min and Max values arrive unscaled */
case DmtxPropXmin:
dec->xMin = value / dec->scale;
break;
case DmtxPropXmax:
dec->xMax = value / dec->scale;
break;
case DmtxPropYmin:
dec->yMin = value / dec->scale;
break;
case DmtxPropYmax:
dec->yMax = value / dec->scale;
break;
default:
break;
}
if(dec->squareDevn <= 0.0 || dec->squareDevn >= 1.0)
return DmtxFail;
if(dec->scanGap < 1)
return DmtxFail;
if(dec->edgeThresh < 1 || dec->edgeThresh > 100)
return DmtxFail;
/* Reinitialize scangrid in case any inputs changed */
dec->grid = InitScanGrid(dec);
return DmtxPass;
}
BOOL CScanDlg::OnInitDialog()
{
CDialog::OnInitDialog();
ASSERT(m_pScanner);
InitScanGrid();
// Sleep(3000);
AddComDeviceToGrid(m_pScanner->m_szTstatScandRet);
AddNetDeviceToGrid(m_pScanner->m_szNCScanRet);
return TRUE;
}
/**
* \brief Initialize decode struct with default values
* \param img
* \return Initialized DmtxDecode struct
*/
extern DmtxDecode *
dmtxDecodeCreate(DmtxImage *img, int scale)
{
DmtxDecode *dec;
int width, height;
dec = (DmtxDecode *)calloc(1, sizeof(DmtxDecode));
if(dec == NULL)
return NULL;
width = dmtxImageGetProp(img, DmtxPropWidth) / scale;
height = dmtxImageGetProp(img, DmtxPropHeight) / scale;
dec->edgeMin = DmtxUndefined;
dec->edgeMax = DmtxUndefined;
dec->scanGap = 1;
dec->squareDevn = cos(50 * (M_PI/180));
dec->sizeIdxExpected = DmtxSymbolShapeAuto;
dec->edgeThresh = 10;
dec->xMin = 0;
dec->xMax = width - 1;
dec->yMin = 0;
dec->yMax = height - 1;
dec->scale = scale;
dec->cache = (unsigned char *)calloc(width * height, sizeof(unsigned char));
if(dec->cache == NULL) {
free(dec);
return NULL;
}
dec->image = img;
dec->grid = InitScanGrid(dec);
return dec;
}
