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);
}
void
sane_close (SANE_Handle handle)
{
AS6E_Scan *prev, *s;
SANE_Word repeat = 0;
DBG (2, "sane_close\n");
/* remove handle from list of open handles: */
prev = 0;
for (s = first_handle; s; s = s->next)
{
if (s == handle)
break;
prev = s;
}
if (!s)
{
DBG (1, "close: invalid handle %p\n", handle);
return; /* oops, not a handle we know about */
}
if (s->scanning)
sane_cancel (handle);
write (s->as6e_params.ctloutpipe, &repeat, sizeof (repeat));
close (s->as6e_params.ctloutpipe);
free (s->scan_buffer);
free (s->line_buffer);
if (prev)
prev->next = s->next;
else
first_handle = s;
free (handle);
}
void
sane_close (SANE_Handle handle)
{
V4L_Scanner *prev, *s;
DBG (2, "sane_close: trying to close handle %p\n", (void *) handle);
/* remove handle from list of open handles: */
prev = 0;
for (s = first_handle; s; s = s->next)
{
if (s == handle)
break;
prev = s;
}
if (!s)
{
DBG (1, "sane_close: bad handle %p\n", handle);
return; /* oops, not a handle we know about */
}
if (prev)
prev->next = s->next;
else
first_handle = s->next;
if (s->scanning)
sane_cancel (handle);
v4l1_close (s->fd);
free (s);
}
static PyObject *readScan (_ScanDevice * self, PyObject * args)
{
SANE_Status st;
SANE_Int len;
SANE_Byte buffer[MAX_READSIZE];
int bytes_to_read;
if (!PyArg_ParseTuple (args, "i", &bytes_to_read))
raiseError("Invalid arguments.");
if (bytes_to_read > MAX_READSIZE)
return raiseError("bytes_to_read > MAX_READSIZE");
if (self->h == NULL)
return raiseDeviceClosedError();
//Py_BEGIN_ALLOW_THREADS
Py_UNBLOCK_THREADS
st = sane_read (self->h, buffer, bytes_to_read, &len);
//Py_END_ALLOW_THREADS
Py_BLOCK_THREADS
if (st != SANE_STATUS_GOOD &&
st != SANE_STATUS_EOF &&
st != SANE_STATUS_NO_DOCS)
{
sane_cancel(self->h);
//Py_BLOCK_THREADS
return raiseSaneError(st);
}
return Py_BuildValue (FORMAT_STRING, st, buffer, len);
}
/*
* Ends use of the scanner.
*
* From the SANE spec:
* This function terminates the association between the device handle
* passed in argument h and the device it represents. If the device is
* presently active, a call to sane_cancel() is performed first. After
* this function returns, handle h must not be used anymore.
*/
void
sane_close (SANE_Handle handle)
{
DBG (10, "sane_close: start\n");
sane_cancel(handle);
disconnect_fd((struct scanner *) handle);
DBG (10, "sane_close: finish\n");
}
static void
sane_idadone(void *data)
{
struct sane_state *h = data;
sane_cancel(h->sane);
sane_close(h->sane);
sane_exit();
free(h->buf);
free(h);
}
static PyObject *cancelScan (_ScanDevice * self, PyObject * args)
{
if (!PyArg_ParseTuple (args, ""))
raiseError("Invalid arguments.");
if (self->h == NULL)
return raiseDeviceClosedError();
sane_cancel (self->h);
Py_INCREF (Py_None);
return Py_None;
}
void
sane_close( SANE_Handle handle )
{
ST400_Device *dev = handle;
DBG(DCODE, "sane_close(%p)\n", handle);
if( dev->status.open ) {
sane_cancel(dev);
dev->status.open = 0;
}
}
/*
* Called by SANE when a page acquisition operation is to be started.
*/
SANE_Status
sane_start (SANE_Handle handle)
{
struct scanner *s = handle;
SANE_Status ret;
DBG (10, "sane_start: start\n");
/* first page of batch */
if(s->started){
DBG(5,"sane_start: previous transfer not finished?");
sane_cancel((SANE_Handle)s);
return SANE_STATUS_CANCELLED;
}
/* set clean defaults */
s->started=1;
s->bytes_rx=0;
s->bytes_tx=0;
s->paperless_lines=0;
/* heat up the lamp */
if(s->mode == MODE_COLOR){
ret = heat_lamp_color(s);
}
else{
ret = heat_lamp_gray(s);
}
if (ret != SANE_STATUS_GOOD) {
DBG (5, "sane_start: ERROR: failed to heat lamp\n");
sane_cancel((SANE_Handle)s);
return ret;
}
DBG (10, "sane_start: finish\n");
return SANE_STATUS_GOOD;
}
static PyObject *
SaneDev_cancel(SaneDevObject *self, PyObject *args)
{
if (!PyArg_ParseTuple(args, ""))
return NULL;
if (self->h==NULL)
{
PyErr_SetString(ErrorObject, "SaneDev object is closed");
return NULL;
}
sane_cancel(self->h);
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *
SaneDev_snap(SaneDevObject *self, PyObject *args)
{
SANE_Status st;
/* The buffer should be a multiple of 3 in size, so each sane_read
operation will return an integral number of RGB triples. */
SANE_Byte buffer[READSIZE]; /* XXX how big should the buffer be? */
SANE_Int len, lastlen;
Imaging im;
SANE_Parameters p;
int px, py, remain, cplen, bufpos, padbytes;
long L;
char errmsg[80];
union
{ char c[2];
INT16 i16;
}
endian;
PyObject *pyNoCancel = NULL;
int noCancel = 0;
endian.i16 = 1;
if (!PyArg_ParseTuple(args, "l|O", &L, &pyNoCancel))
return NULL;
if (self->h==NULL)
{
PyErr_SetString(ErrorObject, "SaneDev object is closed");
return NULL;
}
im=(Imaging)L;
if (pyNoCancel)
noCancel = PyObject_IsTrue(pyNoCancel);
st=SANE_STATUS_GOOD; px=py=0;
/* xxx not yet implemented
- handscanner support (i.e., unknown image length during start)
- generally: move the functionality from method snap in sane.py
down here -- I don't like this cross-dependency.
we need to call sane_get_parameters here, and we can create
the result Image object here.
*/
Py_UNBLOCK_THREADS
sane_get_parameters(self->h, &p);
if (p.format == SANE_FRAME_GRAY)
{
switch (p.depth)
{
case 1:
remain = p.bytes_per_line * im->ysize;
padbytes = p.bytes_per_line - (im->xsize+7)/8;
bufpos = 0;
lastlen = len = 0;
while (st!=SANE_STATUS_EOF && py < im->ysize)
{
while (len > 0 && py < im->ysize)
{
int i, j, k;
j = buffer[bufpos++];
k = 0x80;
for (i = 0; i < 8 && px < im->xsize; i++)
{
im->image8[py][px++] = (k&j) ? 0 : 0xFF;
k = k >> 1;
}
len--;
if (px >= im->xsize)
{
bufpos += padbytes;
len -= padbytes;
py++;
px = 0;
}
}
st=sane_read(self->h, buffer,
remain<READSIZE ? remain : READSIZE, &len);
if (st && (st!=SANE_STATUS_EOF))
{
sane_cancel(self->h);
Py_BLOCK_THREADS
return PySane_Error(st);
}
bufpos -= lastlen;
lastlen = len;
remain -= len;
/* skip possible pad bytes at the start of the buffer */
len -= bufpos;
}
break;
case 8:
remain = p.bytes_per_line * im->ysize;
padbytes = p.bytes_per_line - im->xsize;
bufpos = 0;
len = 0;
while (st!=SANE_STATUS_EOF && py < im->ysize)
{
while (len > 0 && py < im->ysize)
{
cplen = len;
if (px + cplen >= im->xsize)
cplen = im->xsize - px;
memcpy(&im->image8[py][px], &buffer[bufpos], cplen);
len -= cplen;
bufpos += cplen;
px += cplen;
if (px >= im->xsize)
{
px = 0;
py++;
bufpos += padbytes;
len -= padbytes;
}
}
bufpos = -len;
st=sane_read(self->h, buffer,
remain<READSIZE ? remain : READSIZE, &len);
if (st && (st!=SANE_STATUS_EOF))
{
sane_cancel(self->h);
Py_BLOCK_THREADS
return PySane_Error(st);
}
remain -= len;
len -= bufpos;
}
break;
case 16:
remain = p.bytes_per_line * im->ysize;
padbytes = p.bytes_per_line - 2 * im->xsize;
bufpos = endian.c[0];
lastlen = len = 0;
while (st!=SANE_STATUS_EOF && py < im->ysize)
{
while (len > 0 && py < im->ysize)
{
im->image8[py][px++] = buffer[bufpos];
bufpos += 2;
len -= 2;
if (px >= im->xsize)
{
bufpos += padbytes;
len -= padbytes;
py++;
px = 0;
}
}
st=sane_read(self->h, buffer,
remain<READSIZE ? remain : READSIZE, &len);
if (st && (st!=SANE_STATUS_EOF))
{
sane_cancel(self->h);
Py_BLOCK_THREADS
return PySane_Error(st);
}
remain -= len;
bufpos -= lastlen;
lastlen = len;
len -= bufpos;
}
/* 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
}
extern char *internalGetScannerDetails(char *device, char *lang) {
char *answer = NULL;
SANE_Status status;
char *deviceList = o_strdup("");;
int hlp = 0, resolution = 300, minRes=50, maxRes=50, phashAvailable=0;
char *resolution_s, *maxRes_s, *minRes_s;
SANE_Handle *openDeviceHandle;
o_log(DEBUGM, "sane_open of \"%s\"", device);
status = sane_open (device, (SANE_Handle)&openDeviceHandle);
if(status != SANE_STATUS_GOOD) {
o_log(ERROR, "Could not open: '%s' with error: %s", device, sane_strstatus(status));
free(deviceList);
return NULL;
}
//
// Find resolution ranges
//
for (hlp = 0; hlp < 9999; hlp++) {
const SANE_Option_Descriptor *sod;
sod = sane_get_option_descriptor (openDeviceHandle, hlp);
if (sod == NULL)
break;
// Just a placeholder
if (sod->type == SANE_TYPE_GROUP
|| sod->name == NULL
|| hlp == 0)
continue;
if ( 0 == strcmp(sod->name, SANE_NAME_SCAN_RESOLUTION) ) {
// Some kind of sliding range
if (sod->constraint_type == SANE_CONSTRAINT_RANGE) {
o_log(DEBUGM, "Resolution setting detected as 'range'");
// Fixed resolution
if (sod->type == SANE_TYPE_FIXED)
maxRes = (int)SANE_UNFIX (sod->constraint.range->max);
else
maxRes = sod->constraint.range->max;
}
// A fixed list of options
else if (sod->constraint_type == SANE_CONSTRAINT_WORD_LIST) {
int lastIndex = sod->constraint.word_list[0];
o_log(DEBUGM, "Resolution setting detected as 'word list': lastIndex = %d",lastIndex);
// maxRes = sod->constraint.word_list[lastIndex];
// resolution list cannot be treated as low to high ordered list
// remark: impl capability to select scan resolution in webInterface
int n=0;
maxRes = 0;
for (n=1; n<=lastIndex; n++ ) {
o_log(DEBUGM, "index results %d --> %d", n ,(int)sod->constraint.word_list[n]);
if ( maxRes < sod->constraint.word_list[n] ) {
maxRes=sod->constraint.word_list[n];
}
}
}
break; // we've found our resolution - no need to search more
}
}
o_log(DEBUGM, "Determined max resultion to be %d", maxRes);
// Define a default
if(resolution >= maxRes)
resolution = maxRes;
if(resolution <= minRes)
resolution = minRes;
o_log(DEBUGM, "sane_cancel");
sane_cancel(openDeviceHandle);
o_log(DEBUGM, "sane_close");
sane_close(openDeviceHandle);
//
// What languages can we OCR for?
//
char *availableLangs = o_strdup("");
#ifdef CAN_OCR
struct simpleLinkedList *languages = getOCRAvailableLanguages();
while (languages != NULL ) {
if ( checkOCRLanguage( languages->data ) == 0 ) {
o_concatf(&availableLangs, "<lang>%s</lang>", languages->data);
}
languages = sll_getNext(languages);
}
sll_destroy( languages );
#endif /* CAN_OCR */
//
// Can we give the option of doing 'find simmilar'?
//
#ifdef CAN_PHASH
phashAvailable = 1;
#endif /* CAN_PHASH */
// Build Reply
//
resolution_s = itoa(resolution,10);
maxRes_s = itoa(maxRes,10);
minRes_s = itoa(minRes,10);
o_concatf(&deviceList, "<Resolution><max>%s</max><min>%s</min><default>%s</default></Resolution><OCRLanguages>%s</OCRLanguages><phash>%d</phash>", maxRes_s, minRes_s, resolution_s, availableLangs, phashAvailable);
free(maxRes_s);
free(minRes_s);
free(resolution_s);
free(availableLangs);
// The escaped string placeholder will be interprited in the sane dispatcher client
answer = o_printf("<?xml version='1.0' encoding='utf-8'?>\n<Response><ScannerDetails>%s</ScannerDetails></Response>", deviceList);
free(deviceList);
return answer;
}
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");
}
SANE_Status
sane_start (SANE_Handle handle)
{
struct hp5590_scanner *scanner = handle;
SANE_Status ret;
unsigned int bytes_per_line;
DBG (DBG_proc, "%s\n", __FUNCTION__);
if (!scanner)
return SANE_STATUS_INVAL;
if ( scanner->scanning == SANE_TRUE
&& ( scanner->source == SOURCE_ADF
|| scanner->source == SOURCE_ADF_DUPLEX))
{
DBG (DBG_verbose, "%s: Scanner is scanning, check if more data is available\n",
__FUNCTION__);
ret = hp5590_is_data_available (scanner->dn, scanner->proto_flags);
if (ret == SANE_STATUS_GOOD)
{
DBG (DBG_verbose, "%s: More data is available\n", __FUNCTION__);
scanner->transferred_image_size = scanner->image_size;
return SANE_STATUS_GOOD;
}
if (ret != SANE_STATUS_NO_DOCS)
return ret;
}
sane_cancel (handle);
if (scanner->wait_for_button)
{
enum button_status status;
for (;;)
{
ret = hp5590_read_buttons (scanner->dn,
scanner->proto_flags,
&status);
if (ret != SANE_STATUS_GOOD)
return ret;
if (status == BUTTON_CANCEL)
return SANE_STATUS_CANCELLED;
if (status != BUTTON_NONE && status != BUTTON_POWER)
break;
sleep (1);
}
}
DBG (DBG_verbose, "Init scanner\n");
ret = hp5590_init_scanner (scanner->dn, scanner->proto_flags,
NULL, SCANNER_NONE);
if (ret != SANE_STATUS_GOOD)
return ret;
ret = hp5590_power_status (scanner->dn, scanner->proto_flags);
if (ret != SANE_STATUS_GOOD)
return ret;
DBG (DBG_verbose, "Wakeup\n");
ret = hp5590_select_source_and_wakeup (scanner->dn, scanner->proto_flags,
scanner->source,
scanner->extend_lamp_timeout);
if (ret != SANE_STATUS_GOOD)
return ret;
ret = hp5590_set_scan_params (scanner->dn,
scanner->proto_flags,
scanner->info,
scanner->tl_x * scanner->dpi,
scanner->tl_y * scanner->dpi,
(scanner->br_x - scanner->tl_x) * scanner->dpi,
(scanner->br_y - scanner->tl_y) * scanner->dpi,
scanner->dpi,
scanner->depth, scanner->preview ? MODE_PREVIEW : MODE_NORMAL,
scanner->source);
if (ret != SANE_STATUS_GOOD)
{
hp5590_reset_scan_head (scanner->dn, scanner->proto_flags);
return ret;
}
ret = calc_image_params (scanner, NULL, NULL,
&bytes_per_line, NULL,
&scanner->image_size);
if (ret != SANE_STATUS_GOOD)
{
hp5590_reset_scan_head (scanner->dn, scanner->proto_flags);
return ret;
}
scanner->transferred_image_size = scanner->image_size;
if ( scanner->depth == DEPTH_COLOR_24
|| scanner->depth == DEPTH_COLOR_48)
{
DBG (1, "Color 24/48 bits: checking if image size is correctly "
"aligned on number of colors\n");
if (bytes_per_line % 3)
{
DBG (DBG_err, "Color 24/48 bits: image size doesn't lined up on number of colors (3) "
"(image size: %u, bytes per line %u)\n",
scanner->image_size, bytes_per_line);
hp5590_reset_scan_head (scanner->dn, scanner->proto_flags);
return SANE_STATUS_INVAL;
}
DBG (1, "Color 24/48 bits: image size is correctly aligned on number of colors "
"(image size: %u, bytes per line %u)\n",
scanner->image_size, bytes_per_line);
DBG (1, "Color 24/48 bits: checking if image size is correctly "
"aligned on bytes per line\n");
if (scanner->image_size % bytes_per_line)
{
DBG (DBG_err, "Color 24/48 bits: image size doesn't lined up on bytes per line "
"(image size: %u, bytes per line %u)\n",
scanner->image_size, bytes_per_line);
hp5590_reset_scan_head (scanner->dn, scanner->proto_flags);
return SANE_STATUS_INVAL;
}
DBG (1, "Color 24/48 bits: image size correctly aligned on bytes per line "
"(images size: %u, bytes per line: %u)\n",
scanner->image_size, bytes_per_line);
}
DBG (DBG_verbose, "Final image size: %u\n", scanner->image_size);
DBG (DBG_verbose, "Reverse calibration maps\n");
ret = hp5590_send_reverse_calibration_map (scanner->dn, scanner->proto_flags);
if (ret != SANE_STATUS_GOOD)
{
hp5590_reset_scan_head (scanner->dn, scanner->proto_flags);
return ret;
}
DBG (DBG_verbose, "Forward calibration maps\n");
ret = hp5590_send_forward_calibration_maps (scanner->dn, scanner->proto_flags);
if (ret != SANE_STATUS_GOOD)
{
hp5590_reset_scan_head (scanner->dn, scanner->proto_flags);
return ret;
}
scanner->scanning = SANE_TRUE;
DBG (DBG_verbose, "Starting scan\n");
ret = hp5590_start_scan (scanner->dn, scanner->proto_flags);
/* Check for paper jam */
if ( ret == SANE_STATUS_DEVICE_BUSY
&& ( scanner->source == SOURCE_ADF
|| scanner->source == SOURCE_ADF_DUPLEX))
return SANE_STATUS_JAMMED;
if (ret != SANE_STATUS_GOOD)
{
hp5590_reset_scan_head (scanner->dn, scanner->proto_flags);
return ret;
}
return SANE_STATUS_GOOD;
}
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;
}
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");
}