static PyObject *startScan (_ScanDevice * self, PyObject * args)
{
SANE_Status st;
if (!PyArg_ParseTuple (args, ""))
raiseError("Invalid arguments.");
if (self->h == NULL)
return raiseDeviceClosedError();
/* sane_start can take several seconds, if the user initiates
a new scan, while the scan head of a flatbed scanner moves
back to the start position after finishing a previous scan.
Hence it is worth to allow threads here.
*/
Py_BEGIN_ALLOW_THREADS
st = sane_start (self->h);
Py_END_ALLOW_THREADS
if (st != SANE_STATUS_GOOD &&
st != SANE_STATUS_EOF &&
st != SANE_STATUS_NO_DOCS)
return raiseSaneError(st);
return Py_BuildValue("i", st);
}
void KSaneScanThread::run()
{
m_dataSize = 0;
m_readStatus = READ_ON_GOING;
m_saneStartDone = false;
// Start the scanning with sane_start
m_saneStatus = sane_start(m_saneHandle);
m_saneStartDone = true;
if (m_readStatus == READ_CANCEL) {
return;
}
if (m_saneStatus != SANE_STATUS_GOOD) {
kDebug() << "sane_start=" << sane_strstatus(m_saneStatus);
m_readStatus = READ_ERROR;
// oneFinalScanDone() does the sane_cancel()
return;
}
// Read image parameters
m_saneStatus = sane_get_parameters(m_saneHandle, &m_params);
if (m_saneStatus != SANE_STATUS_GOOD) {
kDebug() << "sane_get_parameters=" << sane_strstatus(m_saneStatus);
m_readStatus = READ_ERROR;
// oneFinalScanDone() does the sane_cancel()
return;
}
// calculate data size
m_frameSize = m_params.lines * m_params.bytes_per_line;
if ((m_params.format == SANE_FRAME_RED) ||
(m_params.format == SANE_FRAME_GREEN) ||
(m_params.format == SANE_FRAME_BLUE))
{
m_dataSize = m_frameSize*3;
}
else {
m_dataSize = m_frameSize;
}
m_data->clear();
if (m_dataSize > 0) {
m_data->reserve(m_dataSize);
}
m_frameRead = 0;
m_frame_t_count = 0;
m_readStatus = READ_ON_GOING;
while (m_readStatus == READ_ON_GOING) {
readData();
}
}
void KSaneScanThread::readData()
{
SANE_Int readBytes = 0;
m_saneStatus = sane_read(m_saneHandle, m_readData, SCAN_READ_CHUNK_SIZE, &readBytes);
switch (m_saneStatus)
{
case SANE_STATUS_GOOD:
// continue to parsing the data
break;
case SANE_STATUS_EOF:
if (m_frameRead < m_frameSize) {
kDebug() << "frameRead =" << m_frameRead << ", frameSize =" << m_frameSize << "readBytes =" << readBytes;
if ((readBytes > 0) && ((m_frameRead + readBytes) <= m_frameSize)) {
kDebug() << "This is not a standard compliant backend";
copyToScanData(readBytes);
}
m_readStatus = READ_READY; // It is better to return a broken image than nothing
return;
}
if (m_params.last_frame == SANE_TRUE) {
// this is where it all ends well :)
m_readStatus = READ_READY;
return;
}
else {
// start reading next frame
m_saneStatus = sane_start(m_saneHandle);
if (m_saneStatus != SANE_STATUS_GOOD) {
kDebug() << "sane_start =" << sane_strstatus(m_saneStatus);
m_readStatus = READ_ERROR;
return;
}
m_saneStatus = sane_get_parameters(m_saneHandle, &m_params);
if (m_saneStatus != SANE_STATUS_GOOD) {
kDebug() << "sane_get_parameters =" << sane_strstatus(m_saneStatus);
m_readStatus = READ_ERROR;
sane_cancel(m_saneHandle);
return;
}
//kDebug() << "New Frame";
m_frameRead = 0;
m_frame_t_count++;
break;
}
default:
kDebug() << "sane_read=" << m_saneStatus << "=" << sane_strstatus(m_saneStatus);
m_readStatus = READ_ERROR;
sane_cancel(m_saneHandle);
return;
}
copyToScanData(readBytes);
}
static PyObject *
SaneDev_start(SaneDevObject *self, PyObject *args)
{
SANE_Status st;
if (!PyArg_ParseTuple(args, ""))
return NULL;
if (self->h==NULL)
{
PyErr_SetString(ErrorObject, "SaneDev object is closed");
return NULL;
}
/* sane_start can take several seconds, if the user initiates
a new scan, while the scan head of a flatbed scanner moves
back to the start position after finishing a previous scan.
Hence it is worth to allow threads here.
*/
Py_BEGIN_ALLOW_THREADS
st=sane_start(self->h);
Py_END_ALLOW_THREADS
if (st) return PySane_Error(st);
Py_INCREF(Py_None);
return Py_None;
}
// --------------------------------------------------------------
int32 ControlsWindow::ScanThread()
{
SANE_Status status;
SANE_Handle device;
int len;
SANE_Parameters parm;
BBitmap * image;
bool first_frame;
device = Device();
Lock();
m_status_bar->Show();
rgb_color default_color = m_status_bar->BarColor();
m_scan_button->SetLabel("Cancel");
m_status_bar->Reset("Scanning...");
Unlock();
first_frame = true;
do // for each frame...
{
// start frame reading
if ( m_cancel_scan )
break;
status = sane_start(device);
if ( status != SANE_STATUS_GOOD )
{
fprintf (stderr, "sane_start: %s\n", sane_strstatus (status));
break;
};
// get frame parameters
status = sane_get_parameters(device, &parm);
if (status != SANE_STATUS_GOOD)
{
fprintf (stderr, "sane_get_parameters: %s\n", sane_strstatus (status));
break;
};
if (parm.lines >= 0)
{
Lock();
m_status_bar->SetMaxValue(((parm.format == SANE_FRAME_RGB) ? 1.0 : 3.0) * parm.bytes_per_line * parm.lines);
Unlock();
fprintf (stderr, "scanning image of size %dx%d pixels at "
"%d bits/pixel\n",
parm.pixels_per_line, parm.lines,
8 * parm.bytes_per_line / parm.pixels_per_line);
if ( first_frame )
{
image = new BBitmap(BRect(0, 0, parm.pixels_per_line - 1, parm.lines - 1),
((parm.depth == 1) ? B_GRAY1 : B_RGBA32));
m_parent_window->Lock();
m_parent_window->SetImage(image);
m_parent_window->Unlock();
};
}
else
{
fprintf (stderr, "scanning image %d pixels wide and "
"variable height at %d bits/pixel\n",
parm.pixels_per_line, 8 * parm.bytes_per_line / parm.pixels_per_line);
BAlert * alert = new BAlert("Well...", "Variable height scanning not supported (yet?)", "Sorry");
alert->Go();
break;
};
uint8 * buffer, * data;
uint8 * ptr;
int32 x, y;
int channel;
rgb_color red_color = { 255, 0, 0, 255 };
rgb_color green_color = { 0, 255, 0, 255 };
rgb_color blue_color = { 0, 0, 255, 255 };
BRect updated_rect;
x = y = 0;
channel = 0;
updated_rect.Set(0, 0, parm.pixels_per_line, 0);
Lock();
switch(parm.format)
{
case SANE_FRAME_RED:
channel = 2;
m_status_bar->SetBarColor(red_color);
break;
case SANE_FRAME_GREEN:
channel = 1;
m_status_bar->SetBarColor(green_color);
break;
case SANE_FRAME_BLUE:
channel = 0;
m_status_bar->SetBarColor(blue_color);
break;
default:
channel = 0;
m_status_bar->SetBarColor(default_color);
break;
};
Unlock();
buffer = (uint8 *) malloc(parm.bytes_per_line);
while (1) // read until end of frame or error
{
if ( m_cancel_scan )
break;
len = 0;
status = sane_read(device, buffer, parm.bytes_per_line, &len);
if (status != SANE_STATUS_GOOD)
{
if (status != SANE_STATUS_EOF)
{
fprintf (stderr, "sane_read: %s\n", sane_strstatus (status));
BAlert * alert = new BAlert("sane_read()", sane_strstatus(status), "Glup.");
alert->Go();
};
break;
};
Lock();
m_status_bar->Update((float) len);
Unlock();
if ( image )
{
image->Lock();
ptr = (uint8 *) image->Bits();
ptr += (y * image->BytesPerRow());
ptr += (4*x);
data = buffer;
while ( len > 0 )
{
switch (parm.format)
{
case SANE_FRAME_RED:
case SANE_FRAME_GREEN:
case SANE_FRAME_BLUE:
{
uint8 value;
if (parm.depth == 16)
{
value = (*((uint16 *) data)) >> 8;
data += 2;
len -= 2;
}
else
{
value = *((uint8 *) data);
data++;
len--;
};
*(ptr + channel) = value;
*(ptr + 3) = 255; // Alpha channel
break;
};
case SANE_FRAME_RGB:
{
uint8 red, green, blue;
if (parm.depth == 16)
{
red = (*((uint16 *) data)) >> 8;
data += 2;
green = (*((uint16 *) data)) >> 8;
data += 2;
blue = (*((uint16 *) data)) >> 8;
data += 2;
len -= 6;
}
else
{
red = *((uint8 *) data);
data++;
green = *((uint8 *) data);
data++;
blue = *((uint8 *) data);
data++;
len -= 3;
};
*ptr = blue;
*(ptr+1) = green;
*(ptr+2) = red; // red channel
*(ptr+3) = 255; // Alpha channel
break;
};
case SANE_FRAME_GRAY:
{
uint8 value;
if (parm.depth == 1 )
{
*ptr = *((uint8 *) data);
data++;
len--;
break;
};
if (parm.depth == 16)
{
value = (*((uint16 *) data)) >> 8;
data += 2;
len -= 2;
}
else if ( parm.depth == 8 )
{
value = *((uint8 *) data);
data++;
len--;
};
*ptr = value; // blue channel
*(ptr+1) = value; // green channel
*(ptr+2) = value; // red channel
*(ptr+3) = 255; // Alpha channel
break;
};
/* DG_IMAGE/DAT_IMAGENATIVEXFER/MSG_GET */
TW_UINT16 SANE_ImageNativeXferGet (pTW_IDENTITY pOrigin,
TW_MEMREF pData)
{
#ifndef HAVE_SANE
return TWRC_FAILURE;
#else
TW_UINT16 twRC = TWRC_SUCCESS;
pTW_UINT32 pHandle = (pTW_UINT32) pData;
SANE_Status status;
SANE_Byte buffer[32*1024];
int buff_len;
HBITMAP hDIB;
BITMAPINFO bmpInfo;
VOID *pBits;
HDC dc;
TRACE("DG_IMAGE/DAT_IMAGENATIVEXFER/MSG_GET\n");
if (activeDS.currentState != 6)
{
twRC = TWRC_FAILURE;
activeDS.twCC = TWCC_SEQERROR;
}
else
{
/* Transfer an image from the source to the application */
status = sane_start (activeDS.deviceHandle);
if (status != SANE_STATUS_GOOD)
{
WARN("sane_start: %s\n", sane_strstatus (status));
sane_cancel (activeDS.deviceHandle);
activeDS.twCC = TWCC_OPERATIONERROR;
return TWRC_FAILURE;
}
status = sane_get_parameters (activeDS.deviceHandle, &activeDS.sane_param);
activeDS.sane_param_valid = TRUE;
if (status != SANE_STATUS_GOOD)
{
WARN("sane_get_parameters: %s\n", sane_strstatus (status));
sane_cancel (activeDS.deviceHandle);
activeDS.twCC = TWCC_OPERATIONERROR;
return TWRC_FAILURE;
}
TRACE("Acquiring image %dx%dx%d bits (format=%d last=%d) from sane...\n"
, activeDS.sane_param.pixels_per_line, activeDS.sane_param.lines,
activeDS.sane_param.depth, activeDS.sane_param.format,
activeDS.sane_param.last_frame);
ZeroMemory (&bmpInfo, sizeof (BITMAPINFO));
bmpInfo.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
bmpInfo.bmiHeader.biWidth = activeDS.sane_param.pixels_per_line;
bmpInfo.bmiHeader.biHeight = activeDS.sane_param.lines;
bmpInfo.bmiHeader.biPlanes = 1;
bmpInfo.bmiHeader.biBitCount = activeDS.sane_param.depth;
bmpInfo.bmiHeader.biCompression = BI_RGB;
bmpInfo.bmiHeader.biSizeImage = 0;
bmpInfo.bmiHeader.biXPelsPerMeter = 0;
bmpInfo.bmiHeader.biYPelsPerMeter = 0;
bmpInfo.bmiHeader.biClrUsed = 1;
bmpInfo.bmiHeader.biClrImportant = 0;
bmpInfo.bmiColors[0].rgbBlue = 128;
bmpInfo.bmiColors[0].rgbGreen = 128;
bmpInfo.bmiColors[0].rgbRed = 128;
hDIB = CreateDIBSection ((dc = GetDC(activeDS.hwndOwner)), &bmpInfo,
DIB_RGB_COLORS, &pBits, 0, 0);
if (!hDIB)
{
sane_cancel (activeDS.deviceHandle);
activeDS.twCC = TWCC_LOWMEMORY;
return TWRC_FAILURE;
}
do
{
status = sane_read (activeDS.deviceHandle, buffer,
sizeof (buffer), &buff_len);
if (status == SANE_STATUS_GOOD)
{
/* FIXME: put code for converting the image data into DIB here */
}
else if (status != SANE_STATUS_EOF)
{
WARN("sane_read: %s\n", sane_strstatus (status));
sane_cancel (activeDS.deviceHandle);
activeDS.twCC = TWCC_OPERATIONERROR;
return TWRC_FAILURE;
}
} while (status == SANE_STATUS_GOOD);
sane_cancel (activeDS.deviceHandle);
ReleaseDC (activeDS.hwndOwner, dc);
*pHandle = (TW_UINT32)hDIB;
twRC = TWRC_XFERDONE;
activeDS.twCC = TWCC_SUCCESS;
activeDS.currentState = 7;
}
return twRC;
#endif
}
/* DG_IMAGE/DAT_IMAGEMEMXFER/MSG_GET */
TW_UINT16 SANE_ImageMemXferGet (pTW_IDENTITY pOrigin,
TW_MEMREF pData)
{
#ifndef HAVE_SANE
return TWRC_FAILURE;
#else
TW_UINT16 twRC = TWRC_SUCCESS;
pTW_IMAGEMEMXFER pImageMemXfer = (pTW_IMAGEMEMXFER) pData;
SANE_Status status = SANE_STATUS_GOOD;
TRACE ("DG_IMAGE/DAT_IMAGEMEMXFER/MSG_GET\n");
if (activeDS.currentState < 6 || activeDS.currentState > 7)
{
twRC = TWRC_FAILURE;
activeDS.twCC = TWCC_SEQERROR;
}
else
{
LPBYTE buffer;
int buff_len = 0;
int consumed_len = 0;
LPBYTE ptr;
int rows;
/* Transfer an image from the source to the application */
if (activeDS.currentState == 6)
{
/* trigger scanning dialog */
activeDS.progressWnd = ScanningDialogBox(NULL,0);
ScanningDialogBox(activeDS.progressWnd,0);
status = sane_start (activeDS.deviceHandle);
if (status != SANE_STATUS_GOOD)
{
WARN("sane_start: %s\n", sane_strstatus (status));
sane_cancel (activeDS.deviceHandle);
activeDS.twCC = TWCC_OPERATIONERROR;
return TWRC_FAILURE;
}
status = sane_get_parameters (activeDS.deviceHandle,
&activeDS.sane_param);
activeDS.sane_param_valid = TRUE;
if (status != SANE_STATUS_GOOD)
{
WARN("sane_get_parameters: %s\n", sane_strstatus (status));
sane_cancel (activeDS.deviceHandle);
activeDS.twCC = TWCC_OPERATIONERROR;
return TWRC_FAILURE;
}
TRACE("Acquiring image %dx%dx%d bits (format=%d last=%d) from sane...\n"
, activeDS.sane_param.pixels_per_line, activeDS.sane_param.lines,
activeDS.sane_param.depth, activeDS.sane_param.format,
activeDS.sane_param.last_frame);
activeDS.currentState = 7;
}
/* access memory buffer */
if (pImageMemXfer->Memory.Length < activeDS.sane_param.bytes_per_line)
{
sane_cancel (activeDS.deviceHandle);
activeDS.twCC = TWCC_BADVALUE;
return TWRC_FAILURE;
}
if (pImageMemXfer->Memory.Flags & TWMF_HANDLE)
{
FIXME("Memory Handle, may not be locked correctly\n");
buffer = LocalLock(pImageMemXfer->Memory.TheMem);
}
else
buffer = pImageMemXfer->Memory.TheMem;
memset(buffer,0,pImageMemXfer->Memory.Length);
ptr = buffer;
consumed_len = 0;
rows = pImageMemXfer->Memory.Length / activeDS.sane_param.bytes_per_line;
/* must fill full lines */
while (consumed_len < (activeDS.sane_param.bytes_per_line*rows) &&
status == SANE_STATUS_GOOD)
{
status = sane_read (activeDS.deviceHandle, ptr,
(activeDS.sane_param.bytes_per_line*rows) - consumed_len ,
&buff_len);
consumed_len += buff_len;
ptr += buff_len;
}
if (status == SANE_STATUS_GOOD || status == SANE_STATUS_EOF)
{
pImageMemXfer->Compression = TWCP_NONE;
pImageMemXfer->BytesPerRow = activeDS.sane_param.bytes_per_line;
pImageMemXfer->Columns = activeDS.sane_param.pixels_per_line;
pImageMemXfer->Rows = rows;
pImageMemXfer->XOffset = 0;
pImageMemXfer->YOffset = 0;
pImageMemXfer->BytesWritten = consumed_len;
ScanningDialogBox(activeDS.progressWnd, consumed_len);
if (status == SANE_STATUS_EOF)
{
ScanningDialogBox(activeDS.progressWnd, -1);
TRACE("sane_read: %s\n", sane_strstatus (status));
sane_cancel (activeDS.deviceHandle);
twRC = TWRC_XFERDONE;
}
activeDS.twCC = TWRC_SUCCESS;
}
else if (status != SANE_STATUS_EOF)
{
ScanningDialogBox(activeDS.progressWnd, -1);
WARN("sane_read: %s\n", sane_strstatus (status));
sane_cancel (activeDS.deviceHandle);
activeDS.twCC = TWCC_OPERATIONERROR;
twRC = TWRC_FAILURE;
}
}
if (pImageMemXfer->Memory.Flags & TWMF_HANDLE)
LocalUnlock(pImageMemXfer->Memory.TheMem);
return twRC;
#endif
}
static void*
sane_idainit(FILE *fp, char *filename, unsigned int page, struct ida_image_info *info,
int thumbnail)
{
const SANE_Option_Descriptor *opt;
SANE_Int flags, count;
struct sane_state *h;
int rc,i,value,dpi = 0;
h = malloc(sizeof(*h));
memset(h,0,sizeof(*h));
if (SANE_STATUS_GOOD != (rc = sane_init(NULL,NULL))) {
fprintf(stderr,"sane_init: %s\n",sane_strstatus(rc));
goto oops;
}
if (SANE_STATUS_GOOD != (rc = sane_open(filename,&h->sane))) {
fprintf(stderr,"sane_open: %s\n",sane_strstatus(rc));
goto oops;
}
/* set options */
opt = sane_get_option_descriptor(h->sane,0);
rc = sane_control_option(h->sane, 0, SANE_ACTION_GET_VALUE,
&count, &flags);
for (i = 1; i < count; i++) {
opt = sane_get_option_descriptor(h->sane,i);
if (opt->name && 0 == strcmp(opt->name,SANE_NAME_SCAN_TL_X)) {
value = opt->constraint.range->min;
sane_control_option(h->sane, i, SANE_ACTION_SET_VALUE,
&value, &flags);
} else if (opt->name && 0 == strcmp(opt->name,SANE_NAME_SCAN_TL_Y)) {
value = opt->constraint.range->min;
sane_control_option(h->sane, i, SANE_ACTION_SET_VALUE,
&value, &flags);
} else if (opt->name && 0 == strcmp(opt->name,SANE_NAME_SCAN_BR_X)) {
value = opt->constraint.range->max;
sane_control_option(h->sane, i, SANE_ACTION_SET_VALUE,
&value, &flags);
} else if (opt->name && 0 == strcmp(opt->name,SANE_NAME_SCAN_BR_Y)) {
value = opt->constraint.range->max;
sane_control_option(h->sane, i, SANE_ACTION_SET_VALUE,
&value, &flags);
} else if (opt->name && 0 == strcmp(opt->name,SANE_NAME_PREVIEW)) {
value = SANE_FALSE;
sane_control_option(h->sane, i, SANE_ACTION_SET_VALUE,
&value, &flags);
} else if (opt->cap & SANE_CAP_AUTOMATIC)
sane_control_option(h->sane, i, SANE_ACTION_SET_AUTO,
NULL, &flags);
if (opt->name && 0 == strcmp(opt->name,SANE_NAME_SCAN_RESOLUTION)) {
if (sane_res) {
dpi = sane_res;
sane_control_option(h->sane, i, SANE_ACTION_SET_VALUE,
&dpi, &flags);
}
sane_control_option(h->sane, i, SANE_ACTION_GET_VALUE,
&dpi, &flags);
}
if (debug)
dump_desc(h->sane,i,opt);
}
if (SANE_STATUS_GOOD != (rc = sane_start(h->sane))) {
fprintf(stderr,"sane_start: %s\n",sane_strstatus(rc));
goto oops;
}
h->started = 1;
if (SANE_STATUS_GOOD != (rc = sane_get_parameters(h->sane,&h->parm))) {
fprintf(stderr,"sane_get_parameters: %s\n",sane_strstatus(rc));
goto oops;
}
if (h->parm.format != SANE_FRAME_GRAY &&
h->parm.format != SANE_FRAME_RGB) {
fprintf(stderr,"sane: unsupported frame format (%d)\n",h->parm.format);
goto oops;
}
if (h->parm.depth != 8) {
fprintf(stderr,"sane: unsupported color depth (%d)\n",h->parm.depth);
goto oops;
}
if (-1 == h->parm.lines) {
fprintf(stderr,"sane: can't handle unknown image size\n");
goto oops;
}
info->width = h->parm.pixels_per_line;
info->height = h->parm.lines;
if (dpi)
info->dpi = dpi;
h->buf = malloc(h->parm.bytes_per_line * BUF_LINES);
if (debug)
fprintf(stderr,"sane: scanning %dx%d %s\n",info->width,info->height,
(h->parm.format == SANE_FRAME_GRAY) ? "gray" : "color");
return h;
oops:
if (h->buf)
free(h->buf);
if (h->started)
sane_cancel(h->sane);
if (h->sane)
sane_close(h->sane);
sane_exit();
free(h);
return NULL;
}
char *internalDoScanningOperation(char *uuid, char *lang) {
int request_resolution = 0;
int docid;
int current_page = 0;
int total_requested_pages;
double totbytes = 0;
SANE_Status status;
SANE_Handle *openDeviceHandle;
SANE_Byte *raw_image;
SANE_Parameters pars;
char *docid_s;
char *total_requested_pages_s;
char *devName;
char *outFilename;
char *raw_image_format;
char *header;
o_log(DEBUGM, "doScanningOperation: sane initialized uuid(%s)",(char *)uuid);
updateScanProgress(uuid, SCAN_WAITING_ON_SCANNER, 0);
// Open the device
devName = getScanParam(uuid, SCAN_PARAM_DEVNAME);
o_log(DEBUGM, "sane_open of \"%s\"",devName);
status = sane_open ((SANE_String_Const) devName, (SANE_Handle)&openDeviceHandle);
if(status != SANE_STATUS_GOOD) {
handleSaneErrors("Cannot open device ", devName, status, 0);
updateScanProgress(uuid, SCAN_ERRO_FROM_SCANNER, status);
free(devName);
return 0;
}
free(devName);
/* ========================================================== */
if ( ! setOptions( (char *)uuid, openDeviceHandle, &request_resolution ) )
return 0;
o_log(DEBUGM, "sane_start: setOptions returned request_resolution %d\n",request_resolution);
int timeout = 5;
while( 0 < timeout ) {
status = sane_start (openDeviceHandle);
if(status == SANE_STATUS_GOOD) {
break;
}
else {
if(status == SANE_STATUS_DEVICE_BUSY ) {
// BUSY signal could be the scanner just having a
// bit of lag - specially network connected devices
timeout--;
if ( timeout == 0 ) {
handleSaneErrors("Cannot start scanning", "even after trying several time", status, 0);
updateScanProgress(uuid, SCAN_ERRO_FROM_SCANNER, status);
return 0;
}
else {
o_log(WARNING, "Device reports not ready to 'start', waiting 500ms. Will try another %d times", timeout);
usleep(500 * 1000); // 500ms or 0.5sec
}
}
else {
handleSaneErrors("Cannot start scanning", "", status, 0);
updateScanProgress(uuid, SCAN_ERRO_FROM_SCANNER, status);
return 0;
}
}
}
// Get scanning params (from the scanner)
if( request_resolution == 0 ) {
o_log(DEBUGM, "Resolution did not get set in scanner setup.");
updateScanProgress(uuid, SCAN_INTERNAL_ERROR, 10004);
return 0;
}
o_log(DEBUGM, "Get scanning params");
status = sane_get_parameters (openDeviceHandle, &pars);
o_log(INFORMATION, "Scanner Parm : stat=%s form=%d,lf=%d,bpl=%d,pixpl=%d,lin=%d,dep=%d",
sane_strstatus (status),
pars.format, pars.last_frame,
pars.bytes_per_line, pars.pixels_per_line,
pars.lines, pars.depth);
switch (pars.format) {
case SANE_FRAME_GRAY:
o_log(DEBUGM, "Expecting Gray data (1 channel only).");
raw_image_format = o_strdup( "P5" );
break;
case SANE_FRAME_RGB:
o_log(DEBUGM, "Expecting RGB data (3 channels).");
raw_image_format = o_strdup( "P6" );
break;
default:
o_log(DEBUGM, "backend returns three frames speratly. We do not currently support this.");
updateScanProgress(uuid, SCAN_INTERNAL_ERROR, 10003);
return 0;
break;
}
header = o_printf ("%s\n# SANE data follows\n%d %d\n%d\n",
raw_image_format, pars.pixels_per_line, pars.lines,
(pars.depth <= 8) ? 255 : 65535);
free( raw_image_format );
// Save Record
//
docid_s = getScanParam(uuid, SCAN_PARAM_DOCID);
total_requested_pages_s = getScanParam(uuid, SCAN_PARAM_REQUESTED_PAGES);
total_requested_pages = atoi(total_requested_pages_s);
free(total_requested_pages_s);
if( docid_s == NULL ) {
o_log(DEBUGM, "Saving record");
updateScanProgress(uuid, SCAN_DB_WORKING, 0);
docid_s = addNewScannedDoc(pars.lines, pars.pixels_per_line, request_resolution, total_requested_pages);
setScanParam(uuid, SCAN_PARAM_DOCID, docid_s);
setScanParam(uuid, SCAN_PARAM_ON_PAGE, "1");
current_page = 1;
}
else {
char *current_page_s = getScanParam(uuid, SCAN_PARAM_ON_PAGE);
current_page = atoi(current_page_s);
free(current_page_s);
current_page++;
current_page_s = itoa(current_page, 10);
setScanParam(uuid, SCAN_PARAM_ON_PAGE, current_page_s);
free(current_page_s);
}
docid = atoi(docid_s);
free(docid_s);
totbytes = (double)((pars.bytes_per_line * pars.lines));
/* ========================================================== */
raw_image = collectData( (char *)uuid, openDeviceHandle, totbytes, pars.bytes_per_line, header );
o_log(INFORMATION, "Scanning done.");
o_log(DEBUGM, "sane_cancel");
sane_cancel(openDeviceHandle);
o_log(DEBUGM, "sane_close");
sane_close(openDeviceHandle);
// Convert Raw into JPEG
//
updateScanProgress(uuid, SCAN_CONVERTING_FORMAT, 0);
PIX *pix;
if ( ( pix = pixReadMem( raw_image, (pars.bytes_per_line*pars.lines)+strlen(header) ) ) == NULL) {
o_log(ERROR, "Could not load the image data into a PIX");
}
updateScanProgress(uuid, SCAN_CONVERTING_FORMAT, 55);
o_log(INFORMATION, "Convertion process: Loaded (depth: %d)", pixGetDepth(pix));
free(raw_image);
free(header);
outFilename = o_printf("%s/scans/%d_%d.jpg", BASE_DIR, docid, current_page);
pixWrite(outFilename, pix, IFF_JFIF_JPEG);
free(outFilename);
updateScanProgress(uuid, SCAN_CONVERTING_FORMAT, 100);
o_log(INFORMATION, "Conversion process: Complete");
// Do OCR - on this page
// - OCR libs just wants the raw data and not the image header
ocrImage( uuid, docid, current_page, request_resolution, pix, lang );
#ifdef CAN_PHASH
// Calulate the pHash, so we can compare images later
if( current_page == 1 ) {
updateScanProgress(uuid, SCAN_CALULATING_PHASH, 0);
unsigned long long hash = getImagePhash_px( pix );
savePhash( docid, hash );
}
#endif /* CAN_PHASH */
pixDestroy( &pix );
// cleaup && What should we do next
//
o_log(DEBUGM, "mostly done.");
if(current_page >= total_requested_pages)
updateScanProgress(uuid, SCAN_FINISHED, docid);
else
updateScanProgress(uuid, SCAN_WAITING_ON_NEW_PAGE, ++current_page);
o_log(DEBUGM, "Page scan done.");
return o_strdup("OK");
}
void
testsane (const char *dev_name)
{
int hlp, x;
SANE_Status bla;
SANE_Int blubb;
SANE_Handle hand;
SANE_Parameters pars;
const SANE_Option_Descriptor *sod;
const SANE_Device **device_list;
char buffer[2048];
bla = sane_init (&blubb, auth_callback);
fprintf (stderr, "Init : stat=%d ver=%x\nPress Enter to continue...",
bla, blubb);
getchar ();
if (bla != SANE_STATUS_GOOD)
return;
bla = sane_get_devices (&device_list, SANE_FALSE);
fprintf (stderr, "GetDev : stat=%s\n", sane_strstatus (bla));
if (bla != SANE_STATUS_GOOD)
return;
bla = sane_open (dev_name, &hand);
fprintf (stderr, "Open : stat=%s hand=%p\n", sane_strstatus (bla), hand);
if (bla != SANE_STATUS_GOOD)
return;
bla = sane_set_io_mode (hand, 0);
fprintf (stderr, "SetIoMode : stat=%s\n", sane_strstatus (bla));
for (hlp = 0; hlp < 9999; hlp++)
{
sod = sane_get_option_descriptor (hand, hlp);
if (sod == NULL)
break;
fprintf (stderr, "Gopt(%d) : stat=%p\n", hlp, sod);
fprintf (stderr, "name : %s\n", sod->name);
fprintf (stderr, "title: %s\n", sod->title);
fprintf (stderr, "desc : %s\n", sod->desc);
fprintf (stderr, "type : %d\n", sod->type);
fprintf (stderr, "unit : %d\n", sod->unit);
fprintf (stderr, "size : %d\n", sod->size);
fprintf (stderr, "cap : %d\n", sod->cap);
fprintf (stderr, "ctyp : %d\n", sod->constraint_type);
switch (sod->constraint_type)
{
case SANE_CONSTRAINT_NONE:
break;
case SANE_CONSTRAINT_STRING_LIST:
fprintf (stderr, "stringlist:\n");
break;
case SANE_CONSTRAINT_WORD_LIST:
fprintf (stderr, "wordlist (%d) : ", sod->constraint.word_list[0]);
for (x = 1; x <= sod->constraint.word_list[0]; x++)
fprintf (stderr, " %d ", sod->constraint.word_list[x]);
fprintf (stderr, "\n");
break;
case SANE_CONSTRAINT_RANGE:
fprintf (stderr, "range: %d-%d %d \n", sod->constraint.range->min,
sod->constraint.range->max, sod->constraint.range->quant);
break;
}
}
bla = sane_get_parameters (hand, &pars);
fprintf (stderr,
"Parm : stat=%s form=%d,lf=%d,bpl=%d,pixpl=%d,lin=%d,dep=%d\n",
sane_strstatus (bla),
pars.format, pars.last_frame,
pars.bytes_per_line, pars.pixels_per_line,
pars.lines, pars.depth);
if (bla != SANE_STATUS_GOOD)
return;
bla = sane_start (hand);
fprintf (stderr, "Start : stat=%s\n", sane_strstatus (bla));
if (bla != SANE_STATUS_GOOD)
return;
do
{
bla = sane_read (hand, buffer, sizeof (buffer), &blubb);
/*printf("Read : stat=%s len=%d\n",sane_strstatus (bla),blubb); */
if (bla != SANE_STATUS_GOOD)
{
if (bla == SANE_STATUS_EOF)
break;
return;
}
fwrite (buffer, 1, blubb, stdout);
}
while (1);
sane_cancel (hand);
fprintf (stderr, "Cancel.\n");
sane_close (hand);
fprintf (stderr, "Close\n");
for (hlp = 0; hlp < 20; hlp++)
fprintf (stderr, "STRS %d=%s\n", hlp, sane_strstatus (hlp));
fprintf (stderr, "Exit.\n");
}
