Ejemplo n.º 1
0
void ledm_cancel(SANE_Handle handle)
{
  struct ledm_session *ps = (struct ledm_session *)handle;

  DBG8("sane_hpaio_cancel()\n"); 

  ps -> user_cancel = 1;
  /* Sane_cancel is always called at the end of the scan job. 
  Note that on a multiple page scan job sane_cancel is called only once */

  if (ps->ip_handle)
  {
    ipClose(ps->ip_handle); 
    ps->ip_handle = 0;
  }
  bb_end_scan(ps, 0);
} /* ledm_cancel */
Ejemplo n.º 2
0
SANE_Status soapht_read(SANE_Handle handle, SANE_Byte *data, SANE_Int maxLength, SANE_Int *length)
{
   struct soap_session *ps = (struct soap_session *)handle;
   int ret, stat=SANE_STATUS_IO_ERROR;

   DBG8("sane_hpaio_read() handle=%p data=%p maxLength=%d\n", (void *)handle, data, maxLength);
   if(ps->user_cancel)
   {
     DBG8("soapht_read() EVENT_SCAN_CANCEL****uri=%s\n", ps->uri);
     SendScanEvent(ps->uri, EVENT_SCAN_CANCEL);
     return SANE_STATUS_CANCELLED;
   }
  
   ret = get_ip_data(ps, data, maxLength, length);

   if(ret & (IP_INPUT_ERROR | IP_FATAL_ERROR))
   {
      BUG("ipConvert error=%x\n", ret);
      goto bugout;
   }

   if (ret & IP_DONE)
   {
      stat = SANE_STATUS_EOF;
      SendScanEvent(ps->uri, EVENT_END_SCAN_JOB);
   }
   else
      stat = SANE_STATUS_GOOD;

bugout:
   if (stat != SANE_STATUS_GOOD)
   {
      if (ps->ip_handle)
      {
         /* Note always call ipClose when SANE_STATUS_EOF, do not depend on sane_cancel because sane_cancel is only called at the end of a batch job. */ 
         ipClose(ps->ip_handle);  
         ps->ip_handle = 0;
      } 
      ps->bb_end_page(ps, 0);
   }

   DBG8("-sane_hpaio_read() output=%p bytes_read=%d maxLength=%d status=%d\n", data, *length, maxLength, stat);

   return stat;
} /* soapht_read */
Ejemplo n.º 3
0
void soapht_cancel(SANE_Handle handle)
{
   struct soap_session *ps = (struct soap_session *)handle;

   DBG8("sane_hpaio_cancel()\n"); 

   /*
    * Sane_cancel is always called at the end of the scan job. Note that on a multiple page scan job 
    * sane_cancel is called only once.
    */
   ps -> user_cancel = 1;
   if (ps->ip_handle)
   {
      ipClose(ps->ip_handle); 
      ps->ip_handle = 0;
   }
   ps->bb_end_scan(ps, 0);
} /* soapht_cancel */
Ejemplo n.º 4
0
SANE_Status soapht_start(SANE_Handle handle)
{
   struct soap_session *ps = (struct soap_session *)handle;
   SANE_Parameters pp;
   IP_IMAGE_TRAITS traits;
   IP_XFORM_SPEC xforms[IP_MAX_XFORMS], *pXform=xforms;
   int stat, ret;

   DBG8("sane_hpaio_start()\n");
   
    ps -> user_cancel = 0;
    ps -> cnt = 0;
    ps -> index = 0;
  
   if (set_extents(ps))
   {
      BUG("invalid extents: tlx=%d brx=%d tly=%d bry=%d minwidth=%d minheight%d maxwidth=%d maxheight=%d\n",
         ps->currentTlx, ps->currentTly, ps->currentBrx, ps->currentBry, ps->min_width, ps->min_height, ps->tlxRange.max, ps->tlyRange.max);
      stat = SANE_STATUS_INVAL;
      goto bugout;
   }   

   /* If input is ADF and ADF is empty, return SANE_STATUS_NO_DOCS. */
   if (ps->currentInputSource==IS_ADF || ps->currentInputSource==IS_ADF_DUPLEX)
   {
      ret = ps->bb_is_paper_in_adf(ps);   /* 0 = no paper in adf, 1 = paper in adf, -1 = error */
      if (ret == 0)
      {
         stat = SANE_STATUS_NO_DOCS;     /* done scanning */
         SendScanEvent (ps->uri, EVENT_SCAN_ADF_NO_DOCS);
         goto bugout;
      }
      else if (ret < 0)
      {
         stat = SANE_STATUS_IO_ERROR;
         goto bugout;
      }
   }

   /* Start scan and get actual image traits. */
   if (ps->bb_start_scan(ps))
   {
      stat = SANE_STATUS_IO_ERROR;
      goto bugout;
   }
   SendScanEvent(ps->uri, EVENT_START_SCAN_JOB);
   memset(xforms, 0, sizeof(xforms));    

   /* Setup image-processing pipeline for xform. */
   if (ps->currentScanMode == CE_RGB24 || ps->currentScanMode == CE_GRAY8)
   {
      switch(ps->currentCompression)
      {
         case SF_JFIF:
            pXform->aXformInfo[IP_JPG_DECODE_FROM_DENALI].dword = 0;    /* 0=no */
            ADD_XFORM(X_JPG_DECODE);
            pXform->aXformInfo[IP_CNV_COLOR_SPACE_WHICH_CNV].dword = IP_CNV_YCC_TO_SRGB;
            pXform->aXformInfo[IP_CNV_COLOR_SPACE_GAMMA].dword = 0x00010000;
            ADD_XFORM(X_CNV_COLOR_SPACE);
            break;
         case SF_HPRAW:
         default:
            break;
      }
   }
   else
   {  /* Must be BLACK_AND_WHITE1 (Lineart). */
      switch(ps->currentCompression)
      {
         case SF_JFIF:
            pXform->aXformInfo[IP_JPG_DECODE_FROM_DENALI].dword = 0;    /* 0=no */
            ADD_XFORM(X_JPG_DECODE);
            pXform->aXformInfo[IP_GRAY_2_BI_THRESHOLD].dword = 127;
            ADD_XFORM(X_GRAY_2_BI);
            break;
         case SF_HPRAW:
            pXform->aXformInfo[IP_GRAY_2_BI_THRESHOLD].dword = 127;
            ADD_XFORM(X_GRAY_2_BI);
         default:
            break;
      }
   }

   /* Setup x/y cropping for xform. (Actually we let cm1017 do it's own cropping) */
   pXform->aXformInfo[IP_CROP_LEFT].dword = 0;
   pXform->aXformInfo[IP_CROP_RIGHT].dword = 0;
   pXform->aXformInfo[IP_CROP_TOP].dword = 0;
   pXform->aXformInfo[IP_CROP_MAXOUTROWS].dword = 0;
   ADD_XFORM(X_CROP);

   /* Setup x/y padding for xform. (Actually we let cm1017 do it's own padding) */
   pXform->aXformInfo[IP_PAD_LEFT].dword = 0; /* # of pixels to add to left side */
   pXform->aXformInfo[IP_PAD_RIGHT].dword = 0; /* # of pixels to add to right side */
   pXform->aXformInfo[IP_PAD_TOP].dword = 0; /* # of rows to add to top */
   pXform->aXformInfo[IP_PAD_BOTTOM].dword = 0;  /* # of rows to add to bottom */
   pXform->aXformInfo[IP_PAD_VALUE].dword = ps->currentScanMode == CE_BLACK_AND_WHITE1 ? 0 : -1;   /* lineart white = 0, rgb white = -1 */ 
   pXform->aXformInfo[IP_PAD_MIN_HEIGHT].dword = 0;
   ADD_XFORM(X_PAD);

   /* Open image processor. */
   if ((ret = ipOpen(pXform-xforms, xforms, 0, &ps->ip_handle)) != IP_DONE)
   {
      BUG("unable open image processor: err=%d\n", ret);
      stat = SANE_STATUS_INVAL;
      goto bugout;
   }

   /* Get scan parameters for image processor. */
   if (ps->currentCompression == SF_HPRAW)
      ps->bb_get_parameters(ps, &pp, SPO_STARTED_JR);     /* hpraw, use actual parameters */
   else
      ps->bb_get_parameters(ps, &pp, SPO_BEST_GUESS);     /* jpeg, use best guess */
   traits.iPixelsPerRow = pp.pixels_per_line;
   switch(ps->currentScanMode)
   {
      case CE_BLACK_AND_WHITE1:         /* lineart (let IP create Mono from Gray8) */
      case CE_GRAY8:
         traits.iBitsPerPixel = 8;     /* grayscale */
         break;
      case CE_RGB24:
      default:
         traits.iBitsPerPixel = 24;      /* color */
         break;
   }
   traits.lHorizDPI = ps->currentResolution << 16;
   traits.lVertDPI = ps->currentResolution << 16;
   traits.lNumRows =  pp.lines;
   traits.iNumPages = 1;
   traits.iPageNum = 1;
   traits.iComponentsPerPixel = ((traits.iBitsPerPixel % 3) ? 1 : 3);
   ipSetDefaultInputTraits(ps->ip_handle, &traits);

   /* If jpeg get output image attributes from the image processor. */
   if (ps->currentCompression == SF_JFIF)
   {
      /* Enable parsed header flag. */
      ipResultMask(ps->ip_handle, IP_PARSED_HEADER);

      /* Wait for image processor to process header so we know the exact size of the image for sane_get_params. */
      while (1)
      {
         ret = get_ip_data(ps, NULL, 0, NULL);

         if (ret & (IP_INPUT_ERROR | IP_FATAL_ERROR | IP_DONE))
         {
            BUG("ipConvert error=%x\n", ret);
            stat = SANE_STATUS_IO_ERROR;
            goto bugout;
         }

         if (ret & IP_PARSED_HEADER)
         {
            ipGetImageTraits(ps->ip_handle, NULL, &ps->image_traits);  /* get valid image traits */
            ipResultMask(ps->ip_handle, 0);                          /* disable parsed header flag */
            break;
         }
      }
   }
   else
      ipGetImageTraits(ps->ip_handle, NULL, &ps->image_traits);  /* get valid image traits */

   stat = SANE_STATUS_GOOD;

bugout:
   if (stat != SANE_STATUS_GOOD)
   {
      if (ps->ip_handle)
      {
         ipClose(ps->ip_handle); 
         ps->ip_handle = 0;
      }   
      ps->bb_end_scan(ps, stat == SANE_STATUS_IO_ERROR ? 1: 0);
   }

   return stat;
} /* soapht_start */