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 */
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 */
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 */
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 */