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authorJörg Frings-Fürst <debian@jff-webhosting.net>2015-09-27 08:20:20 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2015-09-27 08:20:20 +0200
commite94622c319e4307617b202f19d3ec05b21a9bb49 (patch)
treec5ddf44352b9bd47aeb3eb432ba79638079efe25 /backend/pieusb_specific.c
parent6f2255c9648b175d51e2c8e5e9670557f9dc4ee1 (diff)
merge to 1.0.25+git20150927
Diffstat (limited to 'backend/pieusb_specific.c')
-rw-r--r--backend/pieusb_specific.c2509
1 files changed, 2509 insertions, 0 deletions
diff --git a/backend/pieusb_specific.c b/backend/pieusb_specific.c
new file mode 100644
index 0000000..8231075
--- /dev/null
+++ b/backend/pieusb_specific.c
@@ -0,0 +1,2509 @@
+/* sane - Scanner Access Now Easy.
+
+ pieusb_specific.c
+
+ Copyright (C) 2012-2015 Jan Vleeshouwers, Michael Rickmann, Klaus Kaempf
+
+ This file is part of the SANE package.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, the authors of SANE give permission for
+ additional uses of the libraries contained in this release of SANE.
+
+ The exception is that, if you link a SANE library with other files
+ to produce an executable, this does not by itself cause the
+ resulting executable to be covered by the GNU General Public
+ License. Your use of that executable is in no way restricted on
+ account of linking the SANE library code into it.
+
+ This exception does not, however, invalidate any other reasons why
+ the executable file might be covered by the GNU General Public
+ License.
+
+ If you submit changes to SANE to the maintainers to be included in
+ a subsequent release, you agree by submitting the changes that
+ those changes may be distributed with this exception intact.
+
+ If you write modifications of your own for SANE, it is your choice
+ whether to permit this exception to apply to your modifications.
+ If you do not wish that, delete this exception notice. */
+
+/* =========================================================================
+ *
+ * Various Pieusb backend specific functions
+ *
+ * Option handling, configuration file handling, post-processing
+ *
+ * ========================================================================= */
+
+#define DEBUG_DECLARE_ONLY
+#include "pieusb.h"
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include "../include/sane/sane.h"
+#include "../include/sane/saneopts.h"
+#include "../include/sane/sanei_config.h"
+
+#include <errno.h>
+#include <math.h>
+#include <time.h>
+
+#include "pieusb_usb.h"
+#include "pieusb_scancmd.h"
+#include "pieusb_buffer.h"
+#include "pieusb_specific.h"
+
+/* Pieusb specific */
+
+/* sub to sanei_pieusb_find_device_callback() */
+static SANE_Status pieusb_initialize_device_definition (Pieusb_Device_Definition* dev, Pieusb_Scanner_Properties* inq, const char* devicename, SANE_Word vendor_id, SANE_Word product_id);
+static void pieusb_print_inquiry (Pieusb_Device_Definition * dev);
+
+/* sub to sane_start() */
+static void pieusb_calculate_shading(struct Pieusb_Scanner *scanner, SANE_Byte* buffer);
+
+/* MR */
+/* sub to sanei_pieusb_post() */
+static SANE_Status pieusb_write_pnm_file (char *filename, uint16_t *data, int depth, int channels, int pixels_per_line, int lines);
+
+/* Auxilary */
+static size_t max_string_size (SANE_String_Const const strings[]);
+static double getGain(int gain);
+static int getGainSetting(double gain);
+/*
+static void updateGain(Pieusb_Scanner *scanner, int color_index);
+*/
+static void updateGain2(Pieusb_Scanner *scanner, int color_index, double gain_increase);
+
+/* --------------------------------------------------------------------------
+ *
+ * SPECIFIC PIEUSB
+ *
+ * --------------------------------------------------------------------------*/
+
+/* Settings for byte order */
+#define SCAN_IMG_FMT_OKLINE 0x08
+#define SCAN_IMG_FMT_BLK_ONE 0x04
+#define SCAN_IMG_FMT_MOTOROLA 0x02
+#define SCAN_IMG_FMT_INTEL 0x01
+
+/* Settings for scanner capabilities */
+#define SCAN_CAP_PWRSAV 0x80
+#define SCAN_CAP_EXT_CAL 0x40
+#define SCAN_CAP_FAST_PREVIEW 0x10
+#define SCAN_CAP_DISABLE_CAL 0x08
+#define SCAN_CAP_SPEEDS 0x07
+
+/* Available scanner options */
+#define SCAN_OPT_DEV_MPCL 0x80
+#define SCAN_OPT_DEV_TP1 0x04
+#define SCAN_OPT_DEV_TP 0x02
+#define SCAN_OPT_DEV_ADF 0x01
+
+/* Options */
+#define SANE_NAME_EXPOSURE_R "exposure-time-r"
+#define SANE_TITLE_EXPOSURE_R "Exposure time red"
+#define SANE_DESC_EXPOSURE_R "The time the red color filter of the CCD is exposed"
+#define SANE_NAME_EXPOSURE_G "exposure-time-g"
+#define SANE_TITLE_EXPOSURE_G "Exposure time green"
+#define SANE_DESC_EXPOSURE_G "The time the green color filter of the CCD is exposed"
+#define SANE_NAME_EXPOSURE_B "exposure-time-b"
+#define SANE_TITLE_EXPOSURE_B "Exposure time blue"
+#define SANE_DESC_EXPOSURE_B "The time the blue color filter of the CCD is exposed"
+#define SANE_NAME_EXPOSURE_I "exposure-time-i"
+#define SANE_TITLE_EXPOSURE_I "Exposure time infrared"
+#define SANE_DESC_EXPOSURE_I "The time the infrared color filter of the CCD is exposed"
+#define SANE_EXPOSURE_DEFAULT DEFAULT_EXPOSURE
+#if 1
+#define SANE_NAME_GAIN_R "gain-r"
+#define SANE_TITLE_GAIN_R "Gain red"
+#define SANE_DESC_GAIN_R "The gain of the signal processor for red"
+#define SANE_NAME_GAIN_G "gain-g"
+#define SANE_TITLE_GAIN_G "Gain green"
+#define SANE_DESC_GAIN_G "The gain of the signal processor for green"
+#define SANE_NAME_GAIN_B "gain-b"
+#define SANE_TITLE_GAIN_B "Gain blue"
+#define SANE_DESC_GAIN_B "The gain of the signal processor for blue"
+#define SANE_NAME_GAIN_I "gain-i"
+#define SANE_TITLE_GAIN_I "Gain infrared"
+#define SANE_DESC_GAIN_I "The gain of the signal processor for infrared"
+#define SANE_GAIN_DEFAULT DEFAULT_GAIN
+
+#define SANE_NAME_OFFSET_R "offset-r"
+#define SANE_TITLE_OFFSET_R "Offset red"
+#define SANE_DESC_OFFSET_R "The offset of the signal processor for red"
+#define SANE_NAME_OFFSET_G "offset-g"
+#define SANE_TITLE_OFFSET_G "Offset greed"
+#define SANE_DESC_OFFSET_G "The offset of the signal processor for green"
+#define SANE_NAME_OFFSET_B "offset-b"
+#define SANE_TITLE_OFFSET_B "Offset blue"
+#define SANE_DESC_OFFSET_B "The offset of the signal processor for blue"
+#define SANE_NAME_OFFSET_I "offset-i"
+#define SANE_TITLE_OFFSET_I "Offset infrared"
+#define SANE_DESC_OFFSET_I "The offset of the signal processor for infrared"
+#define SANE_OFFSET_DEFAULT DEFAULT_OFFSET
+#else
+#define SANE_NAME_GAIN "gain"
+#define SANE_TITLE_GAIN "Gain"
+#define SANE_DESC_GAIN "The gain of the signal processor for the 4 CCD color filters (R,G,B,I)"
+#define SANE_GAIN_DEFAULT 0x13
+
+#define SANE_NAME_OFFSET "offset"
+#define SANE_TITLE_OFFSET "Offset"
+#define SANE_DESC_OFFSET "The offset of the signal processor for the 4 CCD color filters (R,G,B,I)"
+#define SANE_OFFSET_DEFAULT 0
+#endif
+#define min(a,b) (((a)<(b))?(a):(b))
+#define max(a,b) (((a)>(b))?(a):(b))
+
+static const SANE_Range percentage_range_100 = {
+ 0 << SANE_FIXED_SCALE_SHIFT, /* minimum */
+ 100 << SANE_FIXED_SCALE_SHIFT, /* maximum */
+ 0 << SANE_FIXED_SCALE_SHIFT /* quantization */
+};
+
+/* From the firmware disassembly */
+static const SANE_Range gain_range = {
+ 0, /* minimum */
+ 63, /* maximum */
+ 0 /* quantization */
+};
+
+/* From the firmware disassembly */
+static const SANE_Range offset_range = {
+ 0, /* minimum */
+ 255, /* maximum */
+ 0 /* quantization */
+};
+
+static const double gains[] = {
+1.000, 1.075, 1.154, 1.251, 1.362, 1.491, 1.653, /* 0, 5, 10, 15, 20, 25, 30 */
+1.858, 2.115, 2.458, 2.935, 3.638, 4.627 /* 35, 40, 45, 50, 55, 60 */
+};
+
+/**
+ * Callback called whenever a connected USB device reports a supported vendor
+ * and product id combination.
+ * Used by sane_init() and by sane_open().
+ *
+ * @param name Device name which has required vendor and product id
+ * @return SANE_STATUS_GOOD
+ */
+SANE_Status
+sanei_pieusb_find_device_callback (const char *devicename)
+{
+ struct Pieusb_Command_Status status;
+ SANE_Status r;
+ Pieusb_Device_Definition *dev;
+ int device_number; /* index in usb devices list maintained by sani_usb */
+ Pieusb_Scanner_Properties inq;
+ int retry;
+
+ DBG (DBG_info_proc, "sanei_pieusb_find_device_callback: %s\n", devicename);
+
+ /* Check if device is present in the Pieusb device list */
+ for (dev = pieusb_definition_list_head; dev; dev = dev->next) {
+ if (strcmp (dev->sane.name, devicename) == 0) {
+ return SANE_STATUS_GOOD;
+ }
+ }
+
+ /* If not, create a new device struct */
+ dev = malloc (sizeof (*dev));
+ if (!dev) {
+ return SANE_STATUS_NO_MEM;
+ }
+
+ /* Get device number: index of the device in the sanei_usb devices list */
+ r = sanei_usb_open (devicename, &device_number);
+ if (r != SANE_STATUS_GOOD) {
+ free (dev);
+ DBG (DBG_error, "sanei_pieusb_find_device_callback: sanei_usb_open failed for device %s: %s\n",devicename,sane_strstatus(r));
+ return r;
+ }
+
+ /* Get device properties */
+
+ retry = 2;
+ while (retry > 0) {
+ retry--;
+ /* get inquiry data length */
+ sanei_pieusb_cmd_inquiry (device_number, &inq, 5, &status);
+ if (status.pieusb_status == PIEUSB_STATUS_GOOD) {
+ break;
+ }
+ else if (status.pieusb_status == PIEUSB_STATUS_IO_ERROR) {
+ if (retry > 0) {
+ DBG (DBG_info_proc, "inquiry failed, resetting usb\n");
+ if (sanei_pieusb_usb_reset(device_number) == SANE_STATUS_GOOD) {
+ continue; /* retry after IEEE1284 reset */
+ }
+ if (sanei_usb_reset(device_number) == SANE_STATUS_GOOD) {
+ continue; /* retry after USB reset */
+ }
+ }
+ }
+ free (dev);
+ DBG (DBG_error, "sanei_pieusb_find_device_callback: get scanner properties (5 bytes) failed with %d\n", status.pieusb_status);
+ sanei_usb_close (device_number);
+ return status.pieusb_status;
+ }
+ /* get full inquiry data */
+ sanei_pieusb_cmd_inquiry(device_number, &inq, inq.additionalLength+4, &status);
+ if (status.pieusb_status != PIEUSB_STATUS_GOOD) {
+ free (dev);
+ DBG (DBG_error, "sanei_pieusb_find_device_callback: get scanner properties failed\n");
+ sanei_usb_close (device_number);
+ return status.pieusb_status;
+ }
+
+ /* Close the device again */
+ sanei_usb_close(device_number);
+
+ /* Initialize device definition */
+ r = pieusb_initialize_device_definition(dev, &inq, devicename, pieusb_supported_usb_device.vendor, pieusb_supported_usb_device.product);
+ if (r != SANE_STATUS_GOOD) {
+ return r;
+ }
+
+ /* Output */
+ pieusb_print_inquiry (dev);
+
+ /* Check model number */
+ if (inq.model != pieusb_supported_usb_device.model) {
+ free (dev);
+ DBG (DBG_error, "sanei_pieusb_find_device_callback: wrong model number %d\n", inq.model);
+ return SANE_STATUS_INVAL;
+ }
+
+ /* Found a supported scanner, put it in the definitions list*/
+ DBG (DBG_info_proc, "sanei_pieusb_find_device_callback: success\n");
+ dev->next = pieusb_definition_list_head;
+ pieusb_definition_list_head = dev;
+ return SANE_STATUS_GOOD;
+}
+
+/**
+ * Full initialization of a Pieusb_Device structure from INQUIRY data.
+ * The function is used in find_device_callback(), so when sane_init() or
+ * sane_open() is called.
+ *
+ * @param dev
+ */
+static SANE_Status
+pieusb_initialize_device_definition (Pieusb_Device_Definition* dev, Pieusb_Scanner_Properties* inq, const char* devicename,
+ SANE_Word vendor_id, SANE_Word product_id)
+{
+ char *pp, *buf;
+
+ /* Initialize device definition */
+ dev->next = NULL;
+ dev->sane.name = strdup(devicename);
+
+ /* Create 0-terminated string without trailing spaces for vendor */
+ buf = malloc(9);
+ if (buf == NULL)
+ return SANE_STATUS_NO_MEM;
+ strncpy(buf, inq->vendor, 8);
+ pp = buf + 8;
+ *pp-- = '\0';
+ while (*pp == ' ') *pp-- = '\0';
+ dev->sane.vendor = buf;
+
+ /* Create 0-terminated string without trailing spaces for model */
+ buf = malloc(17);
+ if (buf == NULL)
+ return SANE_STATUS_NO_MEM;
+ strncpy(buf, inq->product, 16);
+ pp = buf + 16;
+ *pp-- = '\0';
+ while (*pp == ' ') *pp-- = '\0';
+ dev->sane.model = buf;
+
+ dev->sane.type = "film scanner";
+ dev->vendorId = vendor_id;
+ dev->productId = product_id;
+
+ /* Create 0-terminated strings without trailing spaces for revision */
+ buf = malloc(5);
+ if (buf == NULL)
+ return SANE_STATUS_NO_MEM;
+ strncpy(buf, inq->productRevision, 4);
+ pp = buf + 4;
+ *pp-- = '\0';
+ while (*pp == ' ') *pp-- = '\0';
+ dev->version = buf;
+
+ dev->model = inq->model;
+
+ /* Maximum resolution values */
+ dev->maximum_resolution_x = inq->maxResolutionX;
+ dev->maximum_resolution_y = inq->maxResolutionY;
+ if (dev->maximum_resolution_y < 256) {
+ /* y res is a multiplier */
+ dev->maximum_resolution = dev->maximum_resolution_x;
+ dev->maximum_resolution_x *= dev->maximum_resolution_y;
+ dev->maximum_resolution_y = dev->maximum_resolution_x;
+ } else {
+ /* y res really is resolution */
+ dev->maximum_resolution = min (dev->maximum_resolution_x, dev->maximum_resolution_y);
+ }
+
+ /* Geometry */
+ dev->scan_bed_width = (double) inq->maxScanWidth / dev->maximum_resolution;
+ dev->scan_bed_height = (double) inq->maxScanHeight / dev->maximum_resolution;
+ dev->slide_top_left_x = inq->x0;
+ dev->slide_top_left_y = inq->y0;
+ dev->slide_width = (double) (inq->x1 - inq->x0) / dev->maximum_resolution;
+ dev->slide_height = (double) (inq->y1 - inq->y0) / dev->maximum_resolution;
+
+ /* Integer and bit-encoded properties */
+ dev->halftone_patterns = inq->halftones & 0x0f;
+ dev->color_filters = inq->filters;
+ dev->color_depths = inq->colorDepths;
+ dev->color_formats = inq->colorFormat;
+ dev->image_formats = inq->imageFormat;
+ dev->scan_capabilities = inq->scanCapability;
+ dev->optional_devices = inq->optionalDevices;
+ dev->enhancements = inq->enhancements;
+ dev->gamma_bits = inq->gammaBits;
+ dev->fast_preview_resolution = inq->previewScanResolution;
+ dev->minimum_highlight = inq->minumumHighlight;
+ dev->maximum_shadow = inq->maximumShadow;
+ dev->calibration_equation = inq->calibrationEquation;
+ dev->minimum_exposure = inq->minimumExposure;
+ dev->maximum_exposure = inq->maximumExposure*4; /* *4 to solve the strange situation that the default value is out of range */
+
+ dev->x0 = inq->x0;
+ dev->y0 = inq->y0;
+ dev->x1 = inq->x1;
+ dev->y1 = inq->y1;
+ dev->production = strndup(inq->production, 4);
+ dev->timestamp = strndup(inq->timestamp, 20);
+ dev->signature = (char *)strndup((char *)inq->signature, 40);
+
+ /* Ranges for various quantities */
+ dev->x_range.min = SANE_FIX (0);
+ dev->x_range.quant = SANE_FIX (0);
+ dev->x_range.max = SANE_FIX (dev->scan_bed_width * MM_PER_INCH);
+
+ dev->y_range.min = SANE_FIX (0);
+ dev->y_range.quant = SANE_FIX (0);
+ dev->y_range.max = SANE_FIX (dev->scan_bed_height * MM_PER_INCH);
+
+ dev->dpi_range.min = SANE_FIX (25);
+ dev->dpi_range.quant = SANE_FIX (1);
+ dev->dpi_range.max = SANE_FIX (max (dev->maximum_resolution_x, dev->maximum_resolution_y));
+
+ dev->shadow_range.min = SANE_FIX (0);
+ dev->shadow_range.quant = SANE_FIX (1);
+ dev->shadow_range.max = SANE_FIX (dev->maximum_shadow);
+
+ dev->highlight_range.min = SANE_FIX (dev->minimum_highlight);
+ dev->highlight_range.quant = SANE_FIX (1);
+ dev->highlight_range.max = SANE_FIX (100);
+
+ dev->exposure_range.min = dev->minimum_exposure;
+ dev->exposure_range.quant = 1;
+ dev->exposure_range.max = dev->maximum_exposure;
+
+ dev->dust_range.min = 0;
+ dev->dust_range.quant = 1;
+ dev->dust_range.max = 100;
+
+ /* Enumerated ranges vor various quantities */
+ /*TODO: create from inq->filters */
+ dev->scan_mode_list[0] = SANE_VALUE_SCAN_MODE_LINEART;
+ dev->scan_mode_list[1] = SANE_VALUE_SCAN_MODE_HALFTONE;
+ dev->scan_mode_list[2] = SANE_VALUE_SCAN_MODE_GRAY;
+ dev->scan_mode_list[3] = SANE_VALUE_SCAN_MODE_COLOR;
+ dev->scan_mode_list[4] = SANE_VALUE_SCAN_MODE_RGBI;
+ dev->scan_mode_list[5] = 0;
+
+ dev->calibration_mode_list[0] = SCAN_CALIBRATION_DEFAULT;
+ dev->calibration_mode_list[1] = SCAN_CALIBRATION_AUTO;
+ dev->calibration_mode_list[2] = SCAN_CALIBRATION_PREVIEW;
+ dev->calibration_mode_list[3] = SCAN_CALIBRATION_OPTIONS;
+ dev->calibration_mode_list[4] = 0;
+
+ dev->gain_adjust_list[0] = SCAN_GAIN_ADJUST_03;
+ dev->gain_adjust_list[1] = SCAN_GAIN_ADJUST_05;
+ dev->gain_adjust_list[2] = SCAN_GAIN_ADJUST_08;
+ dev->gain_adjust_list[3] = SCAN_GAIN_ADJUST_10;
+ dev->gain_adjust_list[4] = SCAN_GAIN_ADJUST_12;
+ dev->gain_adjust_list[5] = SCAN_GAIN_ADJUST_16;
+ dev->gain_adjust_list[6] = SCAN_GAIN_ADJUST_19;
+ dev->gain_adjust_list[7] = SCAN_GAIN_ADJUST_24;
+ dev->gain_adjust_list[8] = SCAN_GAIN_ADJUST_30;
+ dev->gain_adjust_list[9] = 0;
+
+ /*TODO: create from inq->colorDepths? Maybe not: didn't experiment with
+ * 4 and 12 bit depths. Don;t know how they behave. */
+ dev->bpp_list[0] = 3; /* count */
+ dev->bpp_list[1] = 1;
+ dev->bpp_list[2] = 8;
+ dev->bpp_list[3] = 16;
+
+ /* Infrared */
+ dev->ir_sw_list[0] = "None";
+ dev->ir_sw_list[1] = "Reduce red overlap";
+ dev->ir_sw_list[2] = "Remove dirt";
+ dev->ir_sw_list[3] = 0;
+
+ dev->grain_sw_list[0] = 4;
+ dev->grain_sw_list[1] = 0;
+ dev->grain_sw_list[2] = 1;
+ dev->grain_sw_list[3] = 2;
+ dev->grain_sw_list[4] = 3;
+ dev->grain_sw_list[5] = 0;
+
+ dev->crop_sw_list[0] = "None";
+ dev->crop_sw_list[1] = "Outside";
+ dev->crop_sw_list[2] = "Inside";
+ dev->crop_sw_list[3] = 0;
+
+ /* halftone_list */
+ dev->halftone_list[0] = "53lpi 45d ROUND"; /* 8x8 pattern */
+ dev->halftone_list[1] = "70lpi 45d ROUND"; /* 6x6 pattern */
+ dev->halftone_list[2] = "75lpi Hori. Line"; /* 4x4 pattern */
+ dev->halftone_list[3] = "4X4 BAYER"; /* 4x4 pattern */
+ dev->halftone_list[4] = "4X4 SCROLL"; /* 4x4 pattern */
+ dev->halftone_list[5] = "5x5 26 Levels"; /* 5x5 pattern */
+ dev->halftone_list[6] = "4x4 SQUARE"; /* 4x4 pattern */
+ dev->halftone_list[7] = "5x5 TILE"; /* 5x5 pattern */
+ dev->halftone_list[8] = 0;
+
+ return SANE_STATUS_GOOD;
+}
+
+/**
+ * Output device definition.
+ * The function is used in find_device_callback(), so when sane_init() or
+ * sane_open() is called.
+ *
+ * @param dev Device to output
+ */
+static void
+pieusb_print_inquiry (Pieusb_Device_Definition * dev)
+{
+ DBG (DBG_inquiry, "INQUIRY:\n");
+ DBG (DBG_inquiry, "========\n");
+ DBG (DBG_inquiry, "\n");
+ DBG (DBG_inquiry, "vendor........................: '%s'\n", dev->sane.vendor);
+ DBG (DBG_inquiry, "product.......................: '%s'\n", dev->sane.model);
+ DBG (DBG_inquiry, "model .......................: 0x%04x\n", dev->model);
+ DBG (DBG_inquiry, "version.......................: '%s'\n", dev->version);
+
+ DBG (DBG_inquiry, "X resolution..................: %d dpi\n",
+ dev->maximum_resolution_x);
+ DBG (DBG_inquiry, "Y resolution..................: %d dpi\n",
+ dev->maximum_resolution_y);
+ DBG (DBG_inquiry, "pixel resolution..............: %d dpi\n",
+ dev->maximum_resolution);
+ DBG (DBG_inquiry, "fb width......................: %f in\n",
+ dev->scan_bed_width);
+ DBG (DBG_inquiry, "fb length.....................: %f in\n",
+ dev->scan_bed_height);
+
+ DBG (DBG_inquiry, "transparency width............: %f in\n",
+ dev->slide_width);
+ DBG (DBG_inquiry, "transparency length...........: %f in\n",
+ dev->slide_height);
+ DBG (DBG_inquiry, "transparency offset...........: %d,%d\n",
+ dev->slide_top_left_x, dev->slide_top_left_y);
+
+ DBG (DBG_inquiry, "# of halftones................: %d\n",
+ dev->halftone_patterns);
+
+ DBG (DBG_inquiry, "One pass color................: %s\n",
+ dev->color_filters & SCAN_ONE_PASS_COLOR ? "yes" : "no");
+
+ DBG (DBG_inquiry, "Filters.......................: %s%s%s%s%s (%02x)\n",
+ dev->color_filters & SCAN_FILTER_INFRARED ? "Infrared " : "",
+ dev->color_filters & SCAN_FILTER_RED ? "Red " : "",
+ dev->color_filters & SCAN_FILTER_GREEN ? "Green " : "",
+ dev->color_filters & SCAN_FILTER_BLUE ? "Blue " : "",
+ dev->color_filters & SCAN_FILTER_NEUTRAL ? "Neutral " : "",
+ dev->color_filters);
+
+ DBG (DBG_inquiry, "Color depths..................: %s%s%s%s%s%s (%02x)\n",
+ dev->color_depths & SCAN_COLOR_DEPTH_16 ? "16 bit " : "",
+ dev->color_depths & SCAN_COLOR_DEPTH_12 ? "12 bit " : "",
+ dev->color_depths & SCAN_COLOR_DEPTH_10 ? "10 bit " : "",
+ dev->color_depths & SCAN_COLOR_DEPTH_8 ? "8 bit " : "",
+ dev->color_depths & SCAN_COLOR_DEPTH_4 ? "4 bit " : "",
+ dev->color_depths & SCAN_COLOR_DEPTH_1 ? "1 bit " : "",
+ dev->color_depths);
+
+ DBG (DBG_inquiry, "Color Format..................: %s%s%s (%02x)\n",
+ dev->color_formats & SCAN_COLOR_FORMAT_INDEX ? "Indexed " : "",
+ dev->color_formats & SCAN_COLOR_FORMAT_LINE ? "Line " : "",
+ dev->color_formats & SCAN_COLOR_FORMAT_PIXEL ? "Pixel " : "",
+ dev->color_formats);
+
+ DBG (DBG_inquiry, "Image Format..................: %s%s%s%s (%02x)\n",
+ dev->image_formats & SCAN_IMG_FMT_OKLINE ? "OKLine " : "",
+ dev->image_formats & SCAN_IMG_FMT_BLK_ONE ? "BlackOne " : "",
+ dev->image_formats & SCAN_IMG_FMT_MOTOROLA ? "Motorola " : "",
+ dev->image_formats & SCAN_IMG_FMT_INTEL ? "Intel" : "",
+ dev->image_formats);
+
+ DBG (DBG_inquiry,
+ "Scan Capability...............: %s%s%s%s%d speeds (%02x)\n",
+ dev->scan_capabilities & SCAN_CAP_PWRSAV ? "PowerSave " : "",
+ dev->scan_capabilities & SCAN_CAP_EXT_CAL ? "ExtCal " : "",
+ dev->scan_capabilities & SCAN_CAP_FAST_PREVIEW ? "FastPreview" :
+ "",
+ dev->scan_capabilities & SCAN_CAP_DISABLE_CAL ? "DisCal " : "",
+ dev->scan_capabilities & SCAN_CAP_SPEEDS,
+ dev->scan_capabilities);
+
+ DBG (DBG_inquiry, "Optional Devices..............: %s%s%s%s (%02x)\n",
+ dev->optional_devices & SCAN_OPT_DEV_MPCL ? "MultiPageLoad " :
+ "",
+ dev->optional_devices & SCAN_OPT_DEV_TP1 ? "TransModule1 " : "",
+ dev->optional_devices & SCAN_OPT_DEV_TP ? "TransModule " : "",
+ dev->optional_devices & SCAN_OPT_DEV_ADF ? "ADF " : "",
+ dev->optional_devices);
+
+ DBG (DBG_inquiry, "Enhancement...................: %02x\n",
+ dev->enhancements);
+ DBG (DBG_inquiry, "Gamma bits....................: %d\n",
+ dev->gamma_bits);
+
+ DBG (DBG_inquiry, "Fast Preview Resolution.......: %d\n",
+ dev->fast_preview_resolution);
+ DBG (DBG_inquiry, "Min Highlight.................: %d\n",
+ dev->minimum_highlight);
+ DBG (DBG_inquiry, "Max Shadow....................: %d\n",
+ dev->maximum_shadow);
+ DBG (DBG_inquiry, "Cal Eqn.......................: %d\n",
+ dev->calibration_equation);
+ DBG (DBG_inquiry, "Min Exposure..................: %d\n",
+ dev->minimum_exposure);
+ DBG (DBG_inquiry, "Max Exposure..................: %d\n",
+ dev->maximum_exposure);
+
+ DBG (DBG_inquiry, "x0,y0 x1,y1...................: %d,%d %d,%d\n",
+ dev->x0, dev->y0, dev->x1, dev->y1);
+ DBG (DBG_inquiry, "production....................: '%s'\n",
+ dev->production);
+ DBG (DBG_inquiry, "timestamp.....................: '%s'\n",
+ dev->timestamp);
+ DBG (DBG_inquiry, "signature.....................: '%s'\n",
+ dev->signature);
+
+}
+
+/**
+ * Initiaize scanner options from the device definition and from exposure,
+ * gain and offset defaults. The function is called by sane_open(), when no
+ * optimized settings are available yet. The scanner object is fully
+ * initialized in sane_start().
+ *
+ * @param scanner Scanner to initialize
+ * @return SANE_STATUS_GOOD
+ */
+SANE_Status
+sanei_pieusb_init_options (Pieusb_Scanner* scanner)
+{
+ int i;
+
+ DBG (DBG_info_proc, "sanei_pieusb_init_options\n");
+
+ memset (scanner->opt, 0, sizeof (scanner->opt));
+ memset (scanner->val, 0, sizeof (scanner->val));
+
+ for (i = 0; i < NUM_OPTIONS; ++i) {
+ scanner->opt[i].size = sizeof (SANE_Word);
+ scanner->opt[i].cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
+ }
+
+ /* Number of options (a pseudo-option) */
+ scanner->opt[OPT_NUM_OPTS].name = SANE_NAME_NUM_OPTIONS;
+ scanner->opt[OPT_NUM_OPTS].title = SANE_TITLE_NUM_OPTIONS;
+ scanner->opt[OPT_NUM_OPTS].desc = SANE_DESC_NUM_OPTIONS;
+ scanner->opt[OPT_NUM_OPTS].type = SANE_TYPE_INT;
+ scanner->opt[OPT_NUM_OPTS].cap = SANE_CAP_SOFT_DETECT;
+ scanner->val[OPT_NUM_OPTS].w = NUM_OPTIONS;
+
+ /* "Mode" group: */
+ scanner->opt[OPT_MODE_GROUP].title = "Scan Mode";
+ scanner->opt[OPT_MODE_GROUP].desc = "";
+ scanner->opt[OPT_MODE_GROUP].type = SANE_TYPE_GROUP;
+ scanner->opt[OPT_MODE_GROUP].cap = 0;
+ scanner->opt[OPT_MODE_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
+
+ /* scan mode */
+ scanner->opt[OPT_MODE].name = SANE_NAME_SCAN_MODE;
+ scanner->opt[OPT_MODE].title = SANE_TITLE_SCAN_MODE;
+ scanner->opt[OPT_MODE].desc = SANE_DESC_SCAN_MODE;
+ scanner->opt[OPT_MODE].type = SANE_TYPE_STRING;
+ scanner->opt[OPT_MODE].size = max_string_size ((SANE_String_Const const *) scanner->device->scan_mode_list);
+ scanner->opt[OPT_MODE].constraint_type = SANE_CONSTRAINT_STRING_LIST;
+ scanner->opt[OPT_MODE].constraint.string_list = (SANE_String_Const const *) scanner->device->scan_mode_list;
+ scanner->val[OPT_MODE].s = (SANE_Char *) strdup (scanner->device->scan_mode_list[3]); /* default RGB */
+
+ /* bit depth */
+ scanner->opt[OPT_BIT_DEPTH].name = SANE_NAME_BIT_DEPTH;
+ scanner->opt[OPT_BIT_DEPTH].title = SANE_TITLE_BIT_DEPTH;
+ scanner->opt[OPT_BIT_DEPTH].desc = SANE_DESC_BIT_DEPTH;
+ scanner->opt[OPT_BIT_DEPTH].type = SANE_TYPE_INT;
+ scanner->opt[OPT_BIT_DEPTH].constraint_type = SANE_CONSTRAINT_WORD_LIST;
+ scanner->opt[OPT_BIT_DEPTH].size = sizeof (SANE_Word);
+ scanner->opt[OPT_BIT_DEPTH].constraint.word_list = scanner->device->bpp_list;
+ scanner->val[OPT_BIT_DEPTH].w = scanner->device->bpp_list[2];
+
+ /* resolution */
+ scanner->opt[OPT_RESOLUTION].name = SANE_NAME_SCAN_RESOLUTION;
+ scanner->opt[OPT_RESOLUTION].title = SANE_TITLE_SCAN_RESOLUTION;
+ scanner->opt[OPT_RESOLUTION].desc = SANE_DESC_SCAN_RESOLUTION;
+ scanner->opt[OPT_RESOLUTION].type = SANE_TYPE_FIXED;
+ scanner->opt[OPT_RESOLUTION].unit = SANE_UNIT_DPI;
+ scanner->opt[OPT_RESOLUTION].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[OPT_RESOLUTION].constraint.range = &scanner->device->dpi_range;
+ scanner->val[OPT_RESOLUTION].w = scanner->device->fast_preview_resolution << SANE_FIXED_SCALE_SHIFT;
+
+ /* halftone pattern */
+ scanner->opt[OPT_HALFTONE_PATTERN].name = SANE_NAME_HALFTONE_PATTERN;
+ scanner->opt[OPT_HALFTONE_PATTERN].title = SANE_TITLE_HALFTONE_PATTERN;
+ scanner->opt[OPT_HALFTONE_PATTERN].desc = SANE_DESC_HALFTONE_PATTERN;
+ scanner->opt[OPT_HALFTONE_PATTERN].type = SANE_TYPE_STRING;
+ scanner->opt[OPT_HALFTONE_PATTERN].size = max_string_size ((SANE_String_Const const *) scanner->device->halftone_list);
+ scanner->opt[OPT_HALFTONE_PATTERN].constraint_type = SANE_CONSTRAINT_STRING_LIST;
+ scanner->opt[OPT_HALFTONE_PATTERN].constraint.string_list = (SANE_String_Const const *) scanner->device->halftone_list;
+ scanner->val[OPT_HALFTONE_PATTERN].s = (SANE_Char *) strdup (scanner->device->halftone_list[6]);
+ scanner->opt[OPT_HALFTONE_PATTERN].cap |= SANE_CAP_INACTIVE; /* Not implemented, and only meaningful at depth 1 */
+
+ /* lineart threshold */
+ scanner->opt[OPT_THRESHOLD].name = SANE_NAME_THRESHOLD;
+ scanner->opt[OPT_THRESHOLD].title = SANE_TITLE_THRESHOLD;
+ scanner->opt[OPT_THRESHOLD].desc = SANE_DESC_THRESHOLD;
+ scanner->opt[OPT_THRESHOLD].type = SANE_TYPE_FIXED;
+ scanner->opt[OPT_THRESHOLD].unit = SANE_UNIT_PERCENT;
+ scanner->opt[OPT_THRESHOLD].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[OPT_THRESHOLD].constraint.range = &percentage_range_100;
+ scanner->val[OPT_THRESHOLD].w = SANE_FIX (50);
+ /* scanner->opt[OPT_THRESHOLD].cap |= SANE_CAP_INACTIVE; Not implemented, and only meaningful at depth 1 */
+
+ /* create a sharper scan at the cost of scan time */
+ scanner->opt[OPT_SHARPEN].name = "sharpen";
+ scanner->opt[OPT_SHARPEN].title = "Sharpen scan";
+ scanner->opt[OPT_SHARPEN].desc = "Sharpen scan by taking more time to discharge the CCD.";
+ scanner->opt[OPT_SHARPEN].type = SANE_TYPE_BOOL;
+ scanner->opt[OPT_SHARPEN].unit = SANE_UNIT_NONE;
+ scanner->opt[OPT_SHARPEN].constraint_type = SANE_CONSTRAINT_NONE;
+ scanner->val[OPT_SHARPEN].b = SANE_FALSE;
+ scanner->opt[OPT_SHARPEN].cap |= SANE_CAP_SOFT_SELECT;
+
+ /* skip the auto-calibration phase before the scan */
+ scanner->opt[OPT_SHADING_ANALYSIS].name = "shading-analysis";
+ scanner->opt[OPT_SHADING_ANALYSIS].title = "Perform shading analysis";
+ scanner->opt[OPT_SHADING_ANALYSIS].desc = "Collect shading reference data before scanning the image. If set to 'no', this option may be overridden by the scanner.";
+ scanner->opt[OPT_SHADING_ANALYSIS].type = SANE_TYPE_BOOL;
+ scanner->opt[OPT_SHADING_ANALYSIS].unit = SANE_UNIT_NONE;
+ scanner->opt[OPT_SHADING_ANALYSIS].constraint_type = SANE_CONSTRAINT_NONE;
+ scanner->val[OPT_SHADING_ANALYSIS].b = SANE_FALSE;
+ scanner->opt[OPT_SHADING_ANALYSIS].cap |= SANE_CAP_SOFT_SELECT;
+
+ /* use auto-calibration settings for scan */
+ scanner->opt[OPT_CALIBRATION_MODE].name = "calibration";
+ scanner->opt[OPT_CALIBRATION_MODE].title = "Calibration mode";
+ scanner->opt[OPT_CALIBRATION_MODE].desc = "How to calibrate the scanner.";
+ scanner->opt[OPT_CALIBRATION_MODE].type = SANE_TYPE_STRING;
+ scanner->opt[OPT_CALIBRATION_MODE].size = max_string_size ((SANE_String_Const const *) scanner->device->calibration_mode_list);
+ scanner->opt[OPT_CALIBRATION_MODE].constraint_type = SANE_CONSTRAINT_STRING_LIST;
+ scanner->opt[OPT_CALIBRATION_MODE].constraint.string_list = (SANE_String_Const const *) scanner->device->calibration_mode_list;
+ scanner->val[OPT_CALIBRATION_MODE].s = (SANE_Char *) strdup (scanner->device->calibration_mode_list[1]); /* default auto */
+
+ /* OPT_GAIN_ADJUST */
+ scanner->opt[OPT_GAIN_ADJUST].name = "gain-adjust";
+ scanner->opt[OPT_GAIN_ADJUST].title = "Adjust gain";
+ scanner->opt[OPT_GAIN_ADJUST].desc = "Adjust gain determined by calibration procedure.";
+ scanner->opt[OPT_GAIN_ADJUST].type = SANE_TYPE_STRING;
+ scanner->opt[OPT_GAIN_ADJUST].size = max_string_size ((SANE_String_Const const *) scanner->device->gain_adjust_list);
+ scanner->opt[OPT_GAIN_ADJUST].constraint_type = SANE_CONSTRAINT_STRING_LIST;
+ scanner->opt[OPT_GAIN_ADJUST].constraint.string_list = (SANE_String_Const const *) scanner->device->gain_adjust_list;
+ scanner->val[OPT_GAIN_ADJUST].s = (SANE_Char *) strdup (scanner->device->gain_adjust_list[2]); /* x 1.0 (no change) */
+
+ /* scan infrared channel faster but less accurate */
+ scanner->opt[OPT_FAST_INFRARED].name = "fast-infrared";
+ scanner->opt[OPT_FAST_INFRARED].title = "Fast infrared scan";
+ scanner->opt[OPT_FAST_INFRARED].desc = "Do not reposition scan head before scanning infrared line. Results in an infrared offset which may deteriorate IR dust and scratch removal.";
+ scanner->opt[OPT_FAST_INFRARED].type = SANE_TYPE_BOOL;
+ scanner->opt[OPT_FAST_INFRARED].unit = SANE_UNIT_NONE;
+ scanner->opt[OPT_FAST_INFRARED].constraint_type = SANE_CONSTRAINT_NONE;
+ scanner->val[OPT_FAST_INFRARED].b = SANE_FALSE;
+ scanner->opt[OPT_FAST_INFRARED].cap |= SANE_CAP_SOFT_SELECT;
+
+ /* automatically advance to next slide after scan */
+ scanner->opt[OPT_ADVANCE_SLIDE].name = "advcane";
+ scanner->opt[OPT_ADVANCE_SLIDE].title = "Advance slide";
+ scanner->opt[OPT_ADVANCE_SLIDE].desc = "Automatically advance to next slide after scan";
+ scanner->opt[OPT_ADVANCE_SLIDE].type = SANE_TYPE_BOOL;
+ scanner->opt[OPT_ADVANCE_SLIDE].unit = SANE_UNIT_NONE;
+ scanner->opt[OPT_ADVANCE_SLIDE].constraint_type = SANE_CONSTRAINT_NONE;
+ scanner->val[OPT_ADVANCE_SLIDE].w = SANE_TRUE;
+ scanner->opt[OPT_ADVANCE_SLIDE].cap |= SANE_CAP_SOFT_SELECT;
+
+ /* "Geometry" group: */
+ scanner->opt[OPT_GEOMETRY_GROUP].title = "Geometry";
+ scanner->opt[OPT_GEOMETRY_GROUP].desc = "";
+ scanner->opt[OPT_GEOMETRY_GROUP].type = SANE_TYPE_GROUP;
+ scanner->opt[OPT_GEOMETRY_GROUP].cap = SANE_CAP_ADVANCED;
+ scanner->opt[OPT_GEOMETRY_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
+
+ /* top-left x */
+ scanner->opt[OPT_TL_X].name = SANE_NAME_SCAN_TL_X;
+ scanner->opt[OPT_TL_X].title = SANE_TITLE_SCAN_TL_X;
+ scanner->opt[OPT_TL_X].desc = SANE_DESC_SCAN_TL_X;
+ scanner->opt[OPT_TL_X].type = SANE_TYPE_FIXED;
+ scanner->opt[OPT_TL_X].unit = SANE_UNIT_MM;
+ scanner->opt[OPT_TL_X].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[OPT_TL_X].constraint.range = &(scanner->device->x_range);
+ scanner->val[OPT_TL_X].w = 0;
+
+ /* top-left y */
+ scanner->opt[OPT_TL_Y].name = SANE_NAME_SCAN_TL_Y;
+ scanner->opt[OPT_TL_Y].title = SANE_TITLE_SCAN_TL_Y;
+ scanner->opt[OPT_TL_Y].desc = SANE_DESC_SCAN_TL_Y;
+ scanner->opt[OPT_TL_Y].type = SANE_TYPE_FIXED;
+ scanner->opt[OPT_TL_Y].unit = SANE_UNIT_MM;
+ scanner->opt[OPT_TL_Y].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[OPT_TL_Y].constraint.range = &(scanner->device->y_range);
+ scanner->val[OPT_TL_Y].w = 0;
+
+ /* bottom-right x */
+ scanner->opt[OPT_BR_X].name = SANE_NAME_SCAN_BR_X;
+ scanner->opt[OPT_BR_X].title = SANE_TITLE_SCAN_BR_X;
+ scanner->opt[OPT_BR_X].desc = SANE_DESC_SCAN_BR_X;
+ scanner->opt[OPT_BR_X].type = SANE_TYPE_FIXED;
+ scanner->opt[OPT_BR_X].unit = SANE_UNIT_MM;
+ scanner->opt[OPT_BR_X].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[OPT_BR_X].constraint.range = &(scanner->device->x_range);
+ scanner->val[OPT_BR_X].w = scanner->device->x_range.max;
+
+ /* bottom-right y */
+ scanner->opt[OPT_BR_Y].name = SANE_NAME_SCAN_BR_Y;
+ scanner->opt[OPT_BR_Y].title = SANE_TITLE_SCAN_BR_Y;
+ scanner->opt[OPT_BR_Y].desc = SANE_DESC_SCAN_BR_Y;
+ scanner->opt[OPT_BR_Y].type = SANE_TYPE_FIXED;
+ scanner->opt[OPT_BR_Y].unit = SANE_UNIT_MM;
+ scanner->opt[OPT_BR_Y].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[OPT_BR_Y].constraint.range = &(scanner->device->y_range);
+ scanner->val[OPT_BR_Y].w = scanner->device->y_range.max;
+
+ /* "Enhancement" group: */
+ scanner->opt[OPT_ENHANCEMENT_GROUP].title = "Enhancement";
+ scanner->opt[OPT_ENHANCEMENT_GROUP].desc = "";
+ scanner->opt[OPT_ENHANCEMENT_GROUP].type = SANE_TYPE_GROUP;
+ scanner->opt[OPT_ENHANCEMENT_GROUP].cap = 0;
+ scanner->opt[OPT_ENHANCEMENT_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
+
+ /* correct data for lamp variations (shading) */
+ scanner->opt[OPT_CORRECT_SHADING].name = "correct-shading";
+ scanner->opt[OPT_CORRECT_SHADING].title = "Correct shading";
+ scanner->opt[OPT_CORRECT_SHADING].desc = "Correct data for lamp variations (shading)";
+ scanner->opt[OPT_CORRECT_SHADING].type = SANE_TYPE_BOOL;
+ scanner->opt[OPT_CORRECT_SHADING].unit = SANE_UNIT_NONE;
+ scanner->val[OPT_CORRECT_SHADING].w = SANE_TRUE;
+
+ /* correct infrared for red crosstalk */
+ scanner->opt[OPT_CORRECT_INFRARED].name = "correct-infrared";
+ scanner->opt[OPT_CORRECT_INFRARED].title = "Correct infrared";
+ scanner->opt[OPT_CORRECT_INFRARED].desc = "Correct infrared for red crosstalk";
+ scanner->opt[OPT_CORRECT_INFRARED].type = SANE_TYPE_BOOL;
+ scanner->opt[OPT_CORRECT_INFRARED].unit = SANE_UNIT_NONE;
+ scanner->val[OPT_CORRECT_INFRARED].w = SANE_FALSE;
+
+ /* detect and remove dust and scratch artifacts */
+ scanner->opt[OPT_CLEAN_IMAGE].name = "clean-image";
+ scanner->opt[OPT_CLEAN_IMAGE].title = "Clean image";
+ scanner->opt[OPT_CLEAN_IMAGE].desc = "Detect and remove dust and scratch artifacts";
+ scanner->opt[OPT_CLEAN_IMAGE].type = SANE_TYPE_BOOL;
+ scanner->opt[OPT_CLEAN_IMAGE].unit = SANE_UNIT_NONE;
+ scanner->val[OPT_CLEAN_IMAGE].w = SANE_FALSE;
+
+ /* strength of grain filtering */
+ scanner->opt[OPT_SMOOTH_IMAGE].name = "smooth";
+ scanner->opt[OPT_SMOOTH_IMAGE].title = "Attenuate film grain";
+ scanner->opt[OPT_SMOOTH_IMAGE].desc = "Amount of smoothening";
+ scanner->opt[OPT_SMOOTH_IMAGE].type = SANE_TYPE_INT;
+ scanner->opt[OPT_SMOOTH_IMAGE].constraint_type = SANE_CONSTRAINT_WORD_LIST;
+ scanner->opt[OPT_SMOOTH_IMAGE].size = sizeof (SANE_Word);
+ scanner->opt[OPT_SMOOTH_IMAGE].constraint.word_list = scanner->device->grain_sw_list;
+ scanner->val[OPT_SMOOTH_IMAGE].w = scanner->device->grain_sw_list[1];
+ if (scanner->opt[OPT_SMOOTH_IMAGE].constraint.word_list[0] < 2) {
+ scanner->opt[OPT_SMOOTH_IMAGE].cap |= SANE_CAP_INACTIVE;
+ }
+
+ /* gamma correction, to make image sRGB like */
+ scanner->opt[OPT_TRANSFORM_TO_SRGB].name = "srgb";
+ scanner->opt[OPT_TRANSFORM_TO_SRGB].title = "sRGB colors";
+ scanner->opt[OPT_TRANSFORM_TO_SRGB].desc = "Transform image to approximate sRGB color space";
+ scanner->opt[OPT_TRANSFORM_TO_SRGB].type = SANE_TYPE_BOOL;
+ scanner->opt[OPT_TRANSFORM_TO_SRGB].unit = SANE_UNIT_NONE;
+ scanner->val[OPT_TRANSFORM_TO_SRGB].w = SANE_FALSE;
+ scanner->opt[OPT_TRANSFORM_TO_SRGB].cap |= SANE_CAP_INACTIVE;
+
+ /* color correction for generic negative film */
+ scanner->opt[OPT_INVERT_IMAGE].name = "invert";
+ scanner->opt[OPT_INVERT_IMAGE].title = "Invert colors";
+ scanner->opt[OPT_INVERT_IMAGE].desc = "Correct for generic negative film";
+ scanner->opt[OPT_INVERT_IMAGE].type = SANE_TYPE_BOOL;
+ scanner->opt[OPT_INVERT_IMAGE].unit = SANE_UNIT_NONE;
+ scanner->val[OPT_INVERT_IMAGE].w = SANE_FALSE;
+ scanner->opt[OPT_INVERT_IMAGE].cap |= SANE_CAP_INACTIVE;
+
+ /* crop image */
+ scanner->opt[OPT_CROP_IMAGE].name = "crop";
+ scanner->opt[OPT_CROP_IMAGE].title = "Cropping";
+ scanner->opt[OPT_CROP_IMAGE].desc = "How to crop the image";
+ scanner->opt[OPT_CROP_IMAGE].type = SANE_TYPE_STRING;
+ scanner->opt[OPT_CROP_IMAGE].size = max_string_size ((SANE_String_Const const *)(void*) scanner->device->crop_sw_list);
+ scanner->opt[OPT_CROP_IMAGE].constraint_type = SANE_CONSTRAINT_STRING_LIST;
+ scanner->opt[OPT_CROP_IMAGE].constraint.string_list = (SANE_String_Const const *)(void*) scanner->device->crop_sw_list;
+ scanner->val[OPT_CROP_IMAGE].s = (SANE_Char *) strdup (scanner->device->crop_sw_list[2]);
+
+ /* "Advanced" group: */
+ scanner->opt[OPT_ADVANCED_GROUP].title = "Advanced";
+ scanner->opt[OPT_ADVANCED_GROUP].desc = "";
+ scanner->opt[OPT_ADVANCED_GROUP].type = SANE_TYPE_GROUP;
+ scanner->opt[OPT_ADVANCED_GROUP].cap = SANE_CAP_ADVANCED;
+ scanner->opt[OPT_ADVANCED_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
+
+ /* preview */
+ scanner->opt[OPT_PREVIEW].name = SANE_NAME_PREVIEW;
+ scanner->opt[OPT_PREVIEW].title = SANE_TITLE_PREVIEW;
+ scanner->opt[OPT_PREVIEW].desc = SANE_DESC_PREVIEW;
+ scanner->opt[OPT_PREVIEW].type = SANE_TYPE_BOOL;
+ scanner->val[OPT_PREVIEW].w = SANE_FALSE;
+
+ /* save shading data */
+ scanner->opt[OPT_SAVE_SHADINGDATA].name = "save-shading-data";
+ scanner->opt[OPT_SAVE_SHADINGDATA].title = "Save shading data";
+ scanner->opt[OPT_SAVE_SHADINGDATA].desc = "Save shading data in 'pieusb.shading'";
+ scanner->opt[OPT_SAVE_SHADINGDATA].type = SANE_TYPE_BOOL;
+ scanner->val[OPT_SAVE_SHADINGDATA].w = SANE_FALSE;
+
+ /* save CCD mask */
+ scanner->opt[OPT_SAVE_CCDMASK].name = "save-ccdmask";
+ scanner->opt[OPT_SAVE_CCDMASK].title = "Save CCD mask";
+ scanner->opt[OPT_SAVE_CCDMASK].desc = "Save CCD mask 'pieusb.ccd'";
+ scanner->opt[OPT_SAVE_CCDMASK].type = SANE_TYPE_BOOL;
+ scanner->val[OPT_SAVE_CCDMASK].w = SANE_FALSE;
+
+ scanner->opt[OPT_LIGHT].name = "light";
+ scanner->opt[OPT_LIGHT].title = "Light";
+ scanner->opt[OPT_LIGHT].desc = "Light";
+ scanner->opt[OPT_LIGHT].type = SANE_TYPE_INT;
+ scanner->opt[OPT_LIGHT].unit = SANE_UNIT_MICROSECOND;
+ scanner->opt[OPT_LIGHT].cap |= SANE_CAP_SOFT_SELECT;
+ scanner->opt[OPT_LIGHT].size = sizeof(SANE_Word);
+ scanner->val[OPT_LIGHT].w = DEFAULT_LIGHT;
+
+ scanner->opt[OPT_DOUBLE_TIMES].name = "double-times";
+ scanner->opt[OPT_DOUBLE_TIMES].title = "Double times";
+ scanner->opt[OPT_DOUBLE_TIMES].desc = "Double times";
+ scanner->opt[OPT_DOUBLE_TIMES].type = SANE_TYPE_INT;
+ scanner->opt[OPT_DOUBLE_TIMES].unit = SANE_UNIT_MICROSECOND;
+ scanner->opt[OPT_DOUBLE_TIMES].cap |= SANE_CAP_SOFT_SELECT;
+ scanner->opt[OPT_DOUBLE_TIMES].size = sizeof(SANE_Word);
+ scanner->val[OPT_DOUBLE_TIMES].w = DEFAULT_DOUBLE_TIMES;
+
+ /* exposure times for R, G, B and I */
+ scanner->opt[OPT_SET_EXPOSURE_R].name = SANE_NAME_EXPOSURE_R;
+ scanner->opt[OPT_SET_EXPOSURE_R].title = SANE_TITLE_EXPOSURE_R;
+ scanner->opt[OPT_SET_EXPOSURE_R].desc = SANE_DESC_EXPOSURE_R;
+ scanner->opt[OPT_SET_EXPOSURE_G].name = SANE_NAME_EXPOSURE_G;
+ scanner->opt[OPT_SET_EXPOSURE_G].title = SANE_TITLE_EXPOSURE_G;
+ scanner->opt[OPT_SET_EXPOSURE_G].desc = SANE_DESC_EXPOSURE_G;
+ scanner->opt[OPT_SET_EXPOSURE_B].name = SANE_NAME_EXPOSURE_B;
+ scanner->opt[OPT_SET_EXPOSURE_B].title = SANE_TITLE_EXPOSURE_B;
+ scanner->opt[OPT_SET_EXPOSURE_B].desc = SANE_DESC_EXPOSURE_B;
+ scanner->opt[OPT_SET_EXPOSURE_I].name = SANE_NAME_EXPOSURE_I;
+ scanner->opt[OPT_SET_EXPOSURE_I].title = SANE_TITLE_EXPOSURE_I;
+ scanner->opt[OPT_SET_EXPOSURE_I].desc = SANE_DESC_EXPOSURE_I;
+ for (i = OPT_SET_EXPOSURE_R; i <= OPT_SET_EXPOSURE_I; ++i) {
+ scanner->opt[i].type = SANE_TYPE_INT;
+ scanner->opt[i].unit = SANE_UNIT_MICROSECOND;
+ scanner->opt[i].cap |= SANE_CAP_SOFT_SELECT;
+ scanner->opt[i].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[i].constraint.range = &(scanner->device->exposure_range);
+ scanner->opt[i].size = sizeof(SANE_Word);
+ scanner->val[i].w = SANE_EXPOSURE_DEFAULT;
+ }
+
+ /* gain for R, G, B and I */
+ scanner->opt[OPT_SET_GAIN_R].name = SANE_NAME_GAIN_R;
+ scanner->opt[OPT_SET_GAIN_R].title = SANE_TITLE_GAIN_R;
+ scanner->opt[OPT_SET_GAIN_R].desc = SANE_DESC_GAIN_R;
+ scanner->opt[OPT_SET_GAIN_G].name = SANE_NAME_GAIN_G;
+ scanner->opt[OPT_SET_GAIN_G].title = SANE_TITLE_GAIN_G;
+ scanner->opt[OPT_SET_GAIN_G].desc = SANE_DESC_GAIN_G;
+ scanner->opt[OPT_SET_GAIN_B].name = SANE_NAME_GAIN_B;
+ scanner->opt[OPT_SET_GAIN_B].title = SANE_TITLE_GAIN_B;
+ scanner->opt[OPT_SET_GAIN_B].desc = SANE_DESC_GAIN_B;
+ scanner->opt[OPT_SET_GAIN_I].name = SANE_NAME_GAIN_I;
+ scanner->opt[OPT_SET_GAIN_I].title = SANE_TITLE_GAIN_I;
+ scanner->opt[OPT_SET_GAIN_I].desc = SANE_DESC_GAIN_I;
+ for (i = OPT_SET_GAIN_R; i <= OPT_SET_GAIN_I; ++i) {
+ scanner->opt[i].type = SANE_TYPE_INT;
+ scanner->opt[i].unit = SANE_UNIT_NONE;
+ scanner->opt[i].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[i].constraint.range = &gain_range;
+ scanner->opt[i].size = sizeof(SANE_Word);
+ scanner->val[i].w = SANE_GAIN_DEFAULT;
+ }
+ /* offsets for R, G, B and I */
+ scanner->opt[OPT_SET_OFFSET_R].name = SANE_NAME_OFFSET_R;
+ scanner->opt[OPT_SET_OFFSET_R].title = SANE_TITLE_OFFSET_R;
+ scanner->opt[OPT_SET_OFFSET_R].desc = SANE_DESC_OFFSET_R;
+ scanner->opt[OPT_SET_OFFSET_G].name = SANE_NAME_OFFSET_G;
+ scanner->opt[OPT_SET_OFFSET_G].title = SANE_TITLE_OFFSET_G;
+ scanner->opt[OPT_SET_OFFSET_G].desc = SANE_DESC_OFFSET_G;
+ scanner->opt[OPT_SET_OFFSET_B].name = SANE_NAME_OFFSET_B;
+ scanner->opt[OPT_SET_OFFSET_B].title = SANE_TITLE_OFFSET_B;
+ scanner->opt[OPT_SET_OFFSET_B].desc = SANE_DESC_OFFSET_B;
+ scanner->opt[OPT_SET_OFFSET_I].name = SANE_NAME_OFFSET_I;
+ scanner->opt[OPT_SET_OFFSET_I].title = SANE_TITLE_OFFSET_I;
+ scanner->opt[OPT_SET_OFFSET_I].desc = SANE_DESC_OFFSET_I;
+ for (i = OPT_SET_OFFSET_R; i <= OPT_SET_OFFSET_I; ++i) {
+ scanner->opt[i].type = SANE_TYPE_INT;
+ scanner->opt[i].unit = SANE_UNIT_NONE;
+ scanner->opt[i].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[i].constraint.range = &offset_range;
+ scanner->opt[i].size = sizeof(SANE_Word);
+ scanner->val[i].w = SANE_OFFSET_DEFAULT;
+ }
+ return SANE_STATUS_GOOD;
+}
+
+/**
+ * Parse line from config file into a vendor id, product id and a model number
+ *
+ * @param config_line Text to parse
+ * @param vendor_id
+ * @param product_id
+ * @param model_number
+ * @return SANE_STATUS_GOOD, or SANE_STATUS_INVAL in case of a parse error
+ */
+SANE_Status
+sanei_pieusb_parse_config_line(const char* config_line, SANE_Word* vendor_id, SANE_Word* product_id, SANE_Word* model_number)
+{
+ char *vendor_id_string, *product_id_string, *model_number_string;
+
+ if (strncmp (config_line, "usb ", 4) != 0) {
+ return SANE_STATUS_INVAL;
+ }
+ /* Detect vendor-id */
+ config_line += 4;
+ config_line = sanei_config_skip_whitespace (config_line);
+ if (*config_line) {
+ config_line = sanei_config_get_string (config_line, &vendor_id_string);
+ if (vendor_id_string) {
+ *vendor_id = strtol (vendor_id_string, 0, 0);
+ free (vendor_id_string);
+ } else {
+ return SANE_STATUS_INVAL;
+ }
+ config_line = sanei_config_skip_whitespace (config_line);
+ } else {
+ return SANE_STATUS_INVAL;
+ }
+ /* Detect product-id */
+ config_line = sanei_config_skip_whitespace (config_line);
+ if (*config_line) {
+ config_line = sanei_config_get_string (config_line, &product_id_string);
+ if (product_id_string) {
+ *product_id = strtol (product_id_string, 0, 0);
+ free (product_id_string);
+ } else {
+ return SANE_STATUS_INVAL;
+ }
+ config_line = sanei_config_skip_whitespace (config_line);
+ } else {
+ return SANE_STATUS_INVAL;
+ }
+ /* Detect product-id */
+ config_line = sanei_config_skip_whitespace (config_line);
+ if (*config_line) {
+ config_line = sanei_config_get_string (config_line, &model_number_string);
+ if (model_number_string) {
+ *model_number = strtol (model_number_string, 0, 0);
+ free (model_number_string);
+ } else {
+ return SANE_STATUS_INVAL;
+ }
+ config_line = sanei_config_skip_whitespace (config_line);
+ } else {
+ return SANE_STATUS_INVAL;
+ }
+ return SANE_STATUS_GOOD;
+}
+
+/**
+ * Check if current list of supported devices contains the given specifications.
+ *
+ * @param vendor_id
+ * @param product_id
+ * @param model_number
+ * @return
+ */
+SANE_Bool
+sanei_pieusb_supported_device_list_contains(SANE_Word vendor_id, SANE_Word product_id, SANE_Word model_number)
+{
+ int i = 0;
+ while (pieusb_supported_usb_device_list[i].vendor != 0) {
+ if (pieusb_supported_usb_device_list[i].vendor == vendor_id
+ && pieusb_supported_usb_device_list[i].product == product_id
+ && pieusb_supported_usb_device_list[i].model == model_number) {
+ return SANE_TRUE;
+ }
+ i++;
+ }
+ return SANE_FALSE;
+}
+
+/**
+ * Add the given specifications to the current list of supported devices
+ * @param vendor_id
+ * @param product_id
+ * @param model_number
+ * @return
+ */
+SANE_Status
+sanei_pieusb_supported_device_list_add(SANE_Word vendor_id, SANE_Word product_id, SANE_Word model_number)
+{
+ int i = 0, k;
+ struct Pieusb_USB_Device_Entry* dl;
+
+ while (pieusb_supported_usb_device_list[i].vendor != 0) {
+ i++;
+ }
+ /* i is index of last entry */
+ for (k=0; k<=i; k++) {
+ DBG(DBG_info_proc,"sanei_pieusb_supported_device_list_add(): current %03d: %04x %04x %02x\n", i,
+ pieusb_supported_usb_device_list[k].vendor,
+ pieusb_supported_usb_device_list[k].product,
+ pieusb_supported_usb_device_list[k].model);
+ }
+
+ dl = realloc(pieusb_supported_usb_device_list,(i+2)*sizeof(struct Pieusb_USB_Device_Entry)); /* Add one entry to list */
+ if (dl == NULL) {
+ return SANE_STATUS_INVAL;
+ }
+ /* Copy values */
+ pieusb_supported_usb_device_list = dl;
+ pieusb_supported_usb_device_list[i].vendor = vendor_id;
+ pieusb_supported_usb_device_list[i].product = product_id;
+ pieusb_supported_usb_device_list[i].model = model_number;
+ pieusb_supported_usb_device_list[i+1].vendor = 0;
+ pieusb_supported_usb_device_list[i+1].product = 0;
+ pieusb_supported_usb_device_list[i+1].model = 0;
+ for (k=0; k<=i+1; k++) {
+ DBG(DBG_info_proc,"sanei_pieusb_supported_device_list_add() add: %03d: %04x %04x %02x\n", i,
+ pieusb_supported_usb_device_list[k].vendor,
+ pieusb_supported_usb_device_list[k].product,
+ pieusb_supported_usb_device_list[k].model);
+ }
+ return SANE_STATUS_GOOD;
+}
+
+/**
+ * Actions to perform when a cancel request has been received.
+ *
+ * @param scanner scanner to stop scanning
+ * @return SANE_STATUS_CANCELLED
+ */
+SANE_Status
+sanei_pieusb_on_cancel (Pieusb_Scanner * scanner)
+{
+ struct Pieusb_Command_Status status;
+
+ DBG (DBG_info_proc, "sanei_pieusb_on_cancel()\n");
+
+ sanei_pieusb_cmd_stop_scan (scanner->device_number, &status);
+ sanei_pieusb_cmd_set_scan_head (scanner->device_number, 1, 0, &status);
+ sanei_pieusb_buffer_delete (&scanner->buffer);
+ scanner->scanning = SANE_FALSE;
+ return SANE_STATUS_CANCELLED;
+}
+
+/**
+ * Determine maximum lengt of a set of strings.
+ *
+ * @param strings Set of strings
+ * @return maximum length
+ */
+static size_t
+max_string_size (SANE_String_Const const strings[])
+{
+ size_t size, max_size = 0;
+ int i;
+
+ for (i = 0; strings[i]; ++i) {
+ size = strlen (strings[i]) + 1;
+ if (size > max_size) {
+ max_size = size;
+ }
+ }
+
+ return max_size;
+}
+
+/* From MR's pie.c */
+
+/* ------------------------- PIEUSB_CORRECT_SHADING -------------------------- */
+
+/**
+ * Correct the given buffer for shading using shading data in scanner.
+ * If the loop order is width->color->height, a 7200 dpi scan correction takes
+ * 45 minutes. If the loop order is color->height->width, this is less than 3
+ * minutes. So it is worthwhile to find the used pixels first (array width_to_loc).
+ *
+ * @param scanner Scanner
+ * @param buffer Buffer to correct
+ */
+void
+sanei_pieusb_correct_shading(struct Pieusb_Scanner *scanner, struct Pieusb_Read_Buffer *buffer)
+{
+
+ int i, j, c, k;
+ SANE_Uint val, val_org, *p;
+ int *width_to_loc;
+
+ DBG (DBG_info_proc, "sanei_pieusb_correct_shading()\n");
+
+ /* Loop through CCD-mask to find used pixels */
+ width_to_loc = calloc(buffer->width,sizeof(int));
+ j = 0;
+ for (i = 0; i < scanner->ccd_mask_size; i++) {
+ if (scanner->ccd_mask[i] == 0) {
+ width_to_loc[j++] = i;
+ }
+ }
+ /* Correct complete image */
+ for (c = 0; c < buffer->colors; c++) {
+ DBG(DBG_info,"sanei_pieusb_correct_shading() correct color %d\n",c);
+ for (k = 0; k < buffer->height; k++) {
+ /* DBG(DBG_info,"Correct line %d\n",k); */
+ p = buffer->data + c * buffer->width * buffer->height + k * buffer->width;
+ for (j = 0; j < buffer->width; j++) {
+ val_org = *p;
+ val = lround((double)scanner->shading_mean[c] / scanner->shading_ref[c][width_to_loc[j]] * val_org);
+ /* DBG(DBG_info,"Correct [%d,%d,%d] %d -> %d\n",k,j,c,val_org,val); */
+ *p++ = val;
+ }
+ }
+ }
+ /* Free memory */
+ free(width_to_loc);
+}
+
+/* === functions copied from MR's code === */
+
+/**
+ *
+ * @param scanner
+ * @param in_img
+ * @param planes
+ * @param out_planes
+ * @return
+ */
+SANE_Status
+sanei_pieusb_post (Pieusb_Scanner *scanner, uint16_t **in_img, int planes)
+{
+ uint16_t *cplane[PLANES]; /* R, G, B, I gray scale planes */
+ SANE_Parameters parameters; /* describes the image */
+ int winsize_smooth; /* for adapting replaced pixels */
+ char filename[64];
+ SANE_Status status;
+ int smooth, i;
+
+ memcpy (&parameters, &scanner->scan_parameters, sizeof (SANE_Parameters));
+ parameters.format = SANE_FRAME_GRAY;
+ parameters.bytes_per_line = parameters.pixels_per_line;
+ if (parameters.depth > 8)
+ parameters.bytes_per_line *= 2;
+ parameters.last_frame = 0;
+
+ DBG (DBG_info, "pie_usb_post: %d ppl, %d lines, %d bits, %d planes, %d dpi\n",
+ parameters.pixels_per_line, parameters.lines,
+ parameters.depth, planes, scanner->mode.resolution);
+
+ if (planes > PLANES) {
+ DBG (DBG_error, "pie_usb_post: too many planes: %d (max %d)\n", planes, PLANES);
+ return SANE_STATUS_INVAL;
+ }
+
+ for (i = 0; i < planes; i++)
+ cplane[i] = in_img[i];
+
+ /* dirt is rather resolution invariant, so
+ * setup resolution dependent parameters
+ */
+ /* film grain reduction */
+ smooth = scanner->val[OPT_SMOOTH_IMAGE].w;
+ winsize_smooth = (scanner->mode.resolution / 540) | 1;
+ /* smoothen whole image or only replaced pixels */
+ if (smooth)
+ {
+ winsize_smooth += 2 * (smooth - 3); /* even */
+ if (winsize_smooth < 3)
+ smooth = 0;
+ }
+ if (winsize_smooth < 3)
+ winsize_smooth = 3;
+ DBG (DBG_info, "pie_usb_sw_post: winsize_smooth %d\n", winsize_smooth);
+
+ /* RGBI post-processing if selected:
+ * 1) remove spectral overlay from ired plane,
+ * 2) remove dirt, smoothen if, crop if */
+ if (scanner->val[OPT_CORRECT_INFRARED].b) /* (scanner->processing & POST_SW_IRED_MASK) */
+ {
+ /* remove spectral overlay from ired plane */
+ status = sanei_ir_spectral_clean (&parameters, scanner->ln_lut, cplane[0], cplane[3]);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+ if (DBG_LEVEL >= 15)
+ {
+ snprintf (filename, 63, "/tmp/ir-spectral.pnm");
+ pieusb_write_pnm_file (filename, cplane[3],
+ parameters.depth, 1,
+ parameters.pixels_per_line, parameters.lines);
+ }
+ if (scanner->cancel_request) /* asynchronous cancel ? */
+ return SANE_STATUS_CANCELLED;
+ } /* scanner-> processing & POST_SW_IRED_MASK */
+
+ /* remove dirt, smoothen if, crop if */
+ if (scanner->val[OPT_CLEAN_IMAGE].b) /* (scanner->processing & POST_SW_DIRT) */
+ {
+ double *norm_histo;
+ uint16_t *thresh_data;
+ int static_thresh, too_thresh; /* static thresholds */
+ int winsize_filter; /* primary size of filtering window */
+ int size_dilate; /* the dirt mask */
+
+ /* size of filter detecting dirt */
+ winsize_filter = (int) (5.0 * (double) scanner->mode.resolution / 300.0) | 1;
+ if (winsize_filter < 3)
+ winsize_filter = 3;
+ /* dirt usually has smooth edges which also need correction */
+ size_dilate = scanner->mode.resolution / 1000 + 1;
+
+ /* first detect large dirt by a static threshold */
+ status = sanei_ir_create_norm_histogram (&parameters, cplane[3], &norm_histo);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "pie_usb_sw_post: no buffer\n");
+ return SANE_STATUS_NO_MEM;
+ }
+ /* generate a "bimodal" static threshold */
+ status = sanei_ir_threshold_yen (&parameters, norm_histo, &static_thresh);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+ /* generate traditional static threshold */
+ status = sanei_ir_threshold_otsu (&parameters, norm_histo, &too_thresh);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+ /* choose lower one */
+ if (too_thresh < static_thresh)
+ static_thresh = too_thresh;
+ free (norm_histo);
+
+ /* then generate dirt mask with adaptive thresholding filter
+ * and add the dirt from the static threshold */
+ /* last two parameters: 10, 50 detects more, 20, 75 less */
+ status = sanei_ir_filter_madmean (&parameters, cplane[3], &thresh_data, winsize_filter, 20, 100);
+ if (status != SANE_STATUS_GOOD) {
+ free (thresh_data);
+ return status;
+ }
+ sanei_ir_add_threshold (&parameters, cplane[3], thresh_data, static_thresh);
+ if (DBG_LEVEL >= 15)
+ {
+ snprintf (filename, 63, "/tmp/ir-threshold.pnm");
+ pieusb_write_pnm_file (filename, thresh_data,
+ 8, 1, parameters.pixels_per_line,
+ parameters.lines);
+ }
+ if (scanner->cancel_request) { /* asynchronous cancel ? */
+ free (thresh_data);
+ return SANE_STATUS_CANCELLED;
+ }
+ /* replace the dirt and smoothen film grain and crop if possible */
+ status = sanei_ir_dilate_mean (&parameters, cplane, thresh_data,
+ 500, size_dilate, winsize_smooth, smooth,
+ 0, NULL);
+ if (status != SANE_STATUS_GOOD) {
+ free (thresh_data);
+ return status;
+ }
+ smooth = 0;
+ free (thresh_data);
+ }
+
+ if (DBG_LEVEL >= 15)
+ {
+ pieusb_write_pnm_file ("/tmp/RGBi-img.pnm", scanner->buffer.data,
+ scanner->scan_parameters.depth, 3, scanner->scan_parameters.pixels_per_line,
+ scanner->scan_parameters.lines);
+ }
+
+ return status;
+}
+
+/* ------------------------------ PIE_USB_WRITE_PNM_FILE ------------------------------- */
+static SANE_Status
+pieusb_write_pnm_file (char *filename, SANE_Uint *data, int depth,
+ int channels, int pixels_per_line, int lines)
+{
+ FILE *out;
+ int r, c, ch;
+ SANE_Uint val;
+ uint8_t b = 0;
+
+ DBG (DBG_info_proc,
+ "pie_usb_write_pnm_file: depth=%d, channels=%d, ppl=%d, lines=%d\n",
+ depth, channels, pixels_per_line, lines);
+
+ out = fopen (filename, "w");
+ if (!out)
+ {
+ DBG (DBG_error,
+ "pie_usb_write_pnm_file: could not open %s for writing: %s\n",
+ filename, strerror (errno));
+ return SANE_STATUS_INVAL;
+ }
+
+ switch (depth) {
+ case 1:
+ fprintf (out, "P4\n%d\n%d\n", pixels_per_line, lines);
+ for (r = 0; r < lines; r++) {
+ int i;
+ i = 0;
+ b = 0;
+ for (c = 0; c < pixels_per_line; c++) {
+ val = *(data + r * pixels_per_line + c);
+ if (val > 0) b |= (0x80 >> i);
+ i++;
+ if (i == 7) {
+ fputc(b, out);
+ i = 0;
+ b = 0;
+ }
+ }
+ if (i != 0) {
+ fputc(b, out);
+ }
+ }
+ break;
+ case 8:
+ fprintf (out, "P%c\n%d\n%d\n%d\n", channels == 1 ? '5' : '6', pixels_per_line, lines, 255);
+ for (r = 0; r < lines; r++) {
+ for (c = 0; c < pixels_per_line; c++) {
+ for (ch = 0; ch < channels; ch++) {
+ val = *(data + ch * lines * pixels_per_line + r * pixels_per_line + c);
+ b = val & 0xFF;
+ fputc(b, out);
+ }
+ }
+ }
+ break;
+ case 16:
+ fprintf (out, "P%c\n%d\n%d\n%d\n", channels == 1 ? '5' : '6', pixels_per_line, lines, 65535);
+ for (r = 0; r < lines; r++) {
+ for (c = 0; c < pixels_per_line; c++) {
+ for (ch = 0; ch < channels; ch++) {
+ val = *(data + ch * lines * pixels_per_line + r * pixels_per_line + c);
+ b = (val >> 8) & 0xFF;
+ fputc(b, out);
+ b = val & 0xFF;
+ fputc(b, out);
+ }
+ }
+ }
+ break;
+ default:
+ DBG (DBG_error, "pie_usb_write_pnm_file: depth %d not implemented\n", depth);
+ }
+ fclose (out);
+
+ DBG (DBG_info, "pie_usb_write_pnm_file: finished\n");
+ return SANE_STATUS_GOOD;
+}
+
+/**
+ * Check option inconsistencies.
+ * In most cases an inconsistency can be solved by ignoring an option setting.
+ * Message these situations and return 1 to indicate we can work with the
+ * current set op options. If the settings are really inconsistent, return 0.
+ */
+int
+sanei_pieusb_analyse_options(struct Pieusb_Scanner *scanner)
+{
+ /* Checks*/
+ if (scanner->val[OPT_TL_X].w > scanner->val[OPT_BR_X].w) {
+ DBG (DBG_error, "sane_start: %s (%.1f mm) is bigger than %s (%.1f mm) -- aborting\n",
+ scanner->opt[OPT_TL_X].title,
+ SANE_UNFIX (scanner->val[OPT_TL_X].w),
+ scanner->opt[OPT_BR_X].title,
+ SANE_UNFIX (scanner->val[OPT_BR_X].w));
+ return 0;
+ }
+ if (scanner->val[OPT_TL_Y].w > scanner->val[OPT_BR_Y].w) {
+ DBG (DBG_error, "sane_start: %s (%.1f mm) is bigger than %s (%.1f mm) -- aborting\n",
+ scanner->opt[OPT_TL_Y].title,
+ SANE_UNFIX (scanner->val[OPT_TL_Y].w),
+ scanner->opt[OPT_BR_Y].title,
+ SANE_UNFIX (scanner->val[OPT_BR_Y].w));
+ return 0;
+ }
+ /* Modes sometimes limit other choices */
+ if (scanner->val[OPT_PREVIEW].b) {
+ /* Preview uses its own specific settings */
+ if (scanner->val[OPT_RESOLUTION].w != (scanner->device->fast_preview_resolution << SANE_FIXED_SCALE_SHIFT)) {
+ DBG (DBG_info_sane, "Option %s = %f ignored during preview\n", scanner->opt[OPT_RESOLUTION].name, SANE_UNFIX(scanner->val[OPT_RESOLUTION].w));
+ }
+ if (scanner->val[OPT_SHARPEN].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored during preview\n", scanner->opt[OPT_SHARPEN].name, scanner->val[OPT_SHARPEN].b);
+ }
+ if (!scanner->val[OPT_FAST_INFRARED].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored during preview\n", scanner->opt[OPT_FAST_INFRARED].name, scanner->val[OPT_FAST_INFRARED].b);
+ }
+ if (scanner->val[OPT_CORRECT_INFRARED].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored during preview\n", scanner->opt[OPT_CORRECT_INFRARED].name, scanner->val[OPT_CORRECT_INFRARED].b);
+ }
+ if (scanner->val[OPT_CLEAN_IMAGE].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored during preview\n", scanner->opt[OPT_CLEAN_IMAGE].name, scanner->val[OPT_CLEAN_IMAGE].b);
+ }
+ if (scanner->val[OPT_SMOOTH_IMAGE].w != 0) {
+ DBG (DBG_info_sane, "Option %s = %d ignored during preview\n", scanner->opt[OPT_SMOOTH_IMAGE].name, scanner->val[OPT_SMOOTH_IMAGE].w);
+ }
+ if (strcmp(scanner->val[OPT_CROP_IMAGE].s, scanner->device->crop_sw_list[0]) != 0) {
+ DBG (DBG_info_sane, "Option %s = %s ignored during preview\n", scanner->opt[OPT_CROP_IMAGE].name, scanner->val[OPT_CROP_IMAGE].s);
+ }
+ if (scanner->val[OPT_TRANSFORM_TO_SRGB].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored during preview\n", scanner->opt[OPT_TRANSFORM_TO_SRGB].name, scanner->val[OPT_TRANSFORM_TO_SRGB].w);
+ }
+ if (scanner->val[OPT_INVERT_IMAGE].w) {
+ DBG (DBG_info_sane, "Option %s = %d ignored during preview\n", scanner->opt[OPT_INVERT_IMAGE].name, scanner->val[OPT_INVERT_IMAGE].w);
+ }
+ } else if (strcmp(scanner->val[OPT_MODE].s,SANE_VALUE_SCAN_MODE_LINEART)==0) {
+ /* Can we do any post processing in lineart? Needs testing to see what's possible */
+ if (scanner->val[OPT_BIT_DEPTH].w != 1) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in lineart mode (will use 1)\n", scanner->opt[OPT_BIT_DEPTH].name, scanner->val[OPT_BIT_DEPTH].w);
+ }
+ if (!scanner->val[OPT_FAST_INFRARED].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in lineart mode (irrelevant)\n", scanner->opt[OPT_FAST_INFRARED].name, scanner->val[OPT_FAST_INFRARED].b);
+ }
+ if (!scanner->val[OPT_CORRECT_SHADING].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in lineart mode (irrelevant)\n", scanner->opt[OPT_CORRECT_SHADING].name, scanner->val[OPT_CORRECT_SHADING].b);
+ }
+ if (!scanner->val[OPT_CORRECT_INFRARED].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in lineart mode (irrelevant)\n", scanner->opt[OPT_CORRECT_INFRARED].name, scanner->val[OPT_CORRECT_INFRARED].b);
+ }
+ if (scanner->val[OPT_CLEAN_IMAGE].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in lineart mode (irrelevant)\n", scanner->opt[OPT_CLEAN_IMAGE].name, scanner->val[OPT_CLEAN_IMAGE].b);
+ }
+ if (scanner->val[OPT_SMOOTH_IMAGE].w != 0) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in lineart mode (irrelevant)\n", scanner->opt[OPT_SMOOTH_IMAGE].name, scanner->val[OPT_SMOOTH_IMAGE].w);
+ }
+ if (strcmp(scanner->val[OPT_CROP_IMAGE].s, scanner->device->crop_sw_list[0]) != 0) {
+ DBG (DBG_info_sane, "Option %s = %s ignored in lineart mode (irrelevant)\n", scanner->opt[OPT_CROP_IMAGE].name, scanner->val[OPT_CROP_IMAGE].s);
+ }
+ if (scanner->val[OPT_TRANSFORM_TO_SRGB].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in lineart mode (irrelevant)\n", scanner->opt[OPT_TRANSFORM_TO_SRGB].name, scanner->val[OPT_TRANSFORM_TO_SRGB].w);
+ }
+ } else if (strcmp(scanner->val[OPT_MODE].s,SANE_VALUE_SCAN_MODE_HALFTONE)==0) {
+ /* Can we do any post processing in halftone? Needs testing to see what's possible */
+ if (scanner->val[OPT_BIT_DEPTH].w != 1) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in halftone mode (will use 1)\n", scanner->opt[OPT_BIT_DEPTH].name, scanner->val[OPT_BIT_DEPTH].w);
+ }
+ if (!scanner->val[OPT_FAST_INFRARED].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in halftone mode (irrelevant)\n", scanner->opt[OPT_FAST_INFRARED].name, scanner->val[OPT_FAST_INFRARED].b);
+ }
+ if (!scanner->val[OPT_CORRECT_SHADING].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in halftone mode (irrelevant)\n", scanner->opt[OPT_CORRECT_SHADING].name, scanner->val[OPT_CORRECT_SHADING].b);
+ }
+ if (!scanner->val[OPT_CORRECT_INFRARED].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in halftone mode (irrelevant)\n", scanner->opt[OPT_CORRECT_INFRARED].name, scanner->val[OPT_CORRECT_INFRARED].b);
+ }
+ if (scanner->val[OPT_CLEAN_IMAGE].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in halftone mode (irrelevant)\n", scanner->opt[OPT_CLEAN_IMAGE].name, scanner->val[OPT_CLEAN_IMAGE].b);
+ }
+ if (scanner->val[OPT_SMOOTH_IMAGE].w != 0) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in halftone mode (irrelevant)\n", scanner->opt[OPT_SMOOTH_IMAGE].name, scanner->val[OPT_SMOOTH_IMAGE].w);
+ }
+ if (strcmp(scanner->val[OPT_CROP_IMAGE].s, scanner->device->crop_sw_list[0]) != 0) {
+ DBG (DBG_info_sane, "Option %s = %s ignored in halftone mode (irrelevant)\n", scanner->opt[OPT_CROP_IMAGE].name, scanner->val[OPT_CROP_IMAGE].s);
+ }
+ if (scanner->val[OPT_TRANSFORM_TO_SRGB].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in halftone mode (irrelevant)\n", scanner->opt[OPT_TRANSFORM_TO_SRGB].name, scanner->val[OPT_TRANSFORM_TO_SRGB].w);
+ }
+ } else if (strcmp(scanner->val[OPT_MODE].s,SANE_VALUE_SCAN_MODE_GRAY)==0) {
+ /* Can we do any post processing in gray mode? */
+ /* Can we obtain a single color channel in this mode? How? */
+ /* Is this just RGB with luminance trasformation? */
+ /* Needs testing to see what's possible */
+ /* Only do 8 or 16 bit scans */
+ if (scanner->val[OPT_BIT_DEPTH].w == 1) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in gray mode (will use 8)\n", scanner->opt[OPT_BIT_DEPTH].name, scanner->val[OPT_BIT_DEPTH].w);
+ }
+ if (!scanner->val[OPT_FAST_INFRARED].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in gray mode (irrelevant)\n", scanner->opt[OPT_FAST_INFRARED].name, scanner->val[OPT_FAST_INFRARED].b);
+ }
+ if (!scanner->val[OPT_CORRECT_INFRARED].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in gray mode (irrelevant)\n", scanner->opt[OPT_CORRECT_INFRARED].name, scanner->val[OPT_CORRECT_INFRARED].b);
+ }
+ if (scanner->val[OPT_CLEAN_IMAGE].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in gray mode (irrelevant)\n", scanner->opt[OPT_CLEAN_IMAGE].name, scanner->val[OPT_CLEAN_IMAGE].b);
+ }
+ if (scanner->val[OPT_TRANSFORM_TO_SRGB].b) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in gray mode (irrelevant)\n", scanner->opt[OPT_TRANSFORM_TO_SRGB].name, scanner->val[OPT_TRANSFORM_TO_SRGB].w);
+ }
+ } else if (strcmp(scanner->val[OPT_MODE].s,SANE_VALUE_SCAN_MODE_COLOR)==0) {
+ /* Some options require infrared data to be obtained, so all infrared options are relevant */
+ /* Only do 8 or 16 bit scans */
+ if (scanner->val[OPT_BIT_DEPTH].w == 1) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in color mode (will use 8)\n", scanner->opt[OPT_BIT_DEPTH].name, scanner->val[OPT_BIT_DEPTH].w);
+ }
+ } else if (strcmp(scanner->val[OPT_MODE].s,SANE_VALUE_SCAN_MODE_RGBI)==0) {
+ /* Only do 8 or 16 bit scans */
+ if (scanner->val[OPT_BIT_DEPTH].w == 1) {
+ DBG (DBG_info_sane, "Option %s = %d ignored in color mode (will use 8)\n", scanner->opt[OPT_BIT_DEPTH].name, scanner->val[OPT_BIT_DEPTH].w);
+ }
+ }
+
+ return 1;
+}
+
+/**
+ * Print options
+ *
+ * @param scanner
+ */
+void
+sanei_pieusb_print_options(struct Pieusb_Scanner *scanner)
+{
+ int k;
+ /* List current options and values */
+ DBG (DBG_info, "Num options = %d\n", scanner->val[OPT_NUM_OPTS].w);
+ for (k = 1; k < scanner->val[OPT_NUM_OPTS].w; k++) {
+ switch (scanner->opt[k].type) {
+ case SANE_TYPE_BOOL:
+ DBG(DBG_info," Option %d: %s = %d\n", k, scanner->opt[k].name, scanner->val[k].b);
+ break;
+ case SANE_TYPE_INT:
+ DBG(DBG_info," Option %d: %s = %d\n", k, scanner->opt[k].name, scanner->val[k].w);
+ break;
+ case SANE_TYPE_FIXED:
+ DBG(DBG_info," Option %d: %s = %f\n", k, scanner->opt[k].name, SANE_UNFIX (scanner->val[k].w));
+ break;
+ case SANE_TYPE_STRING:
+ DBG(DBG_info," Option %d: %s = %s\n", k, scanner->opt[k].name, scanner->val[k].s);
+ break;
+ case SANE_TYPE_GROUP:
+ DBG(DBG_info," Option %d: %s = %s\n", k, scanner->opt[k].title, scanner->val[k].s);
+ break;
+ default:
+ DBG(DBG_info," Option %d: %s unknown type %d\n", k, scanner->opt[k].name, scanner->opt[k].type);
+ break;
+ }
+ }
+}
+
+/**
+ * Calculate reference values for each pixel, line means and line maxima.
+ * We have got 45 lines for all four colors and for each CCD pixel.
+ * The reference value for each pixel is the 45-line average for that
+ * pixel, for each color separately.
+ *
+ * @param scanner
+ * @param buffer
+ */
+static void pieusb_calculate_shading(struct Pieusb_Scanner *scanner, SANE_Byte* buffer)
+{
+ int k, m;
+ SANE_Byte* p;
+ SANE_Int ci, val;
+ SANE_Int shading_width = scanner->device->shading_parameters[0].pixelsPerLine;
+ SANE_Int shading_height = scanner->device->shading_parameters[0].nLines;
+
+ /* Initialze all to 0 */
+ for (k = 0; k < SHADING_PARAMETERS_INFO_COUNT; k++) {
+ scanner->shading_max[k] = 0;
+ scanner->shading_mean[k] = 0;
+ memset(scanner->shading_ref[k], 0, shading_width * sizeof (SANE_Int));
+ }
+ /* Process data from buffer */
+ p = buffer;
+ switch (scanner->mode.colorFormat) {
+ case 0x01: /* Pixel */
+ /* Process pixel by pixel */
+ for (k = 0; k < shading_height; k++) {
+ for (m = 0; m < shading_width; m++) {
+ for (ci = 0; ci < SHADING_PARAMETERS_INFO_COUNT; ci++) {
+ val = *(p) + *(p+1) * 256;
+ scanner->shading_ref[ci][m] += val;
+ scanner->shading_max[ci] = scanner->shading_max[ci] < val ? val : scanner->shading_max[ci];
+ p += 2;
+ }
+ }
+ }
+ break;
+ case 0x04: /* Indexed */
+ /* Process each line in the sequence found in the buffer */
+ for (k = 0; k < shading_height*4; k++) {
+ /* Save at right color */
+ switch (*p) {
+ case 'R': ci = 0; break;
+ case 'G': ci = 1; break;
+ case 'B': ci = 2; break;
+ case 'I': ci = 3; break;
+ default: ci = -1; break; /* ignore line */
+ }
+ /* Add scanned data to reference line and keep track of maximum */
+ if (ci != -1) {
+ for (m = 0; m < shading_width; m++) {
+ val = *(p+2+2*m) + *(p+2+2*m+1) * 256;
+ scanner->shading_ref[ci][m] += val;
+ scanner->shading_max[ci] = scanner->shading_max[ci] < val ? val : scanner->shading_max[ci];
+ /* DBG(DBG_error,"%02d Shading_ref[%d][%d] = %d\n",k,ci,m,scanner->shading_ref[ci][m]); */
+ }
+ }
+ /* Next line */
+ p += 2*shading_width+2;
+ }
+ break;
+ default:
+ DBG (DBG_error,"sane_start(): color format %d not implemented\n",scanner->mode.colorFormat);
+ return;
+ }
+ /* Mean reference value needs division */
+ for (k = 0; k < SHADING_PARAMETERS_INFO_COUNT; k++) {
+ for (m = 0; m < shading_width; m++) {
+ scanner->shading_ref[k][m] = lround((double)scanner->shading_ref[k][m]/shading_height);
+ /* DBG(DBG_error,"Shading_ref[%d][%d] = %d\n",k,m,scanner->shading_ref[k][m]); */
+ }
+ }
+ /* Overall means */
+ for (k = 0; k < SHADING_PARAMETERS_INFO_COUNT; k++) {
+ for (m=0; m<shading_width; m++) {
+ scanner->shading_mean[k] += scanner->shading_ref[k][m];
+ }
+ scanner->shading_mean[k] = lround((double)scanner->shading_mean[k]/shading_width);
+ DBG (DBG_error,"Shading_mean[%d] = %d\n",k,scanner->shading_mean[k]);
+ }
+
+ /* Set shading data present */
+ scanner->shading_data_present = SANE_TRUE;
+
+ /* Export shading data as TIFF */
+#ifdef CAN_DO_4_CHANNEL_TIFF
+ if (scanner->val[OPT_SAVE_SHADINGDATA].b) {
+ struct Pieusb_Read_Buffer shading;
+ SANE_Byte* lboff = buffer;
+ SANE_Int bpl = shading_width*2;
+ SANE_Int n;
+ buffer_create(&shading, shading_width, shading_height, 0x0F, 16);
+ for (n=0; n<4*shading_height; n++) {
+ if (buffer_put_single_color_line(&shading, *lboff, lboff+2, bpl) == 0) {
+ break;
+ }
+ lboff += (bpl + 2);
+ }
+ FILE* fs = fopen("pieusb.shading", "w");
+ /* write_tiff_rgbi_header (fs, shading_width, shading_height, 16, 3600, NULL); */
+ fwrite(shading.data, 1, shading.image_size_bytes, fs);
+ fclose(fs);
+ buffer_delete(&shading);
+ }
+#endif
+
+}
+
+/*
+ * Set frame (from scanner options)
+ */
+
+SANE_Status
+sanei_pieusb_set_frame_from_options(Pieusb_Scanner * scanner)
+{
+ double dpmm;
+ struct Pieusb_Command_Status status;
+
+ dpmm = (double) scanner->device->maximum_resolution / MM_PER_INCH;
+ scanner->frame.x0 = SANE_UNFIX(scanner->val[OPT_TL_X].w) * dpmm;
+ scanner->frame.y0 = SANE_UNFIX(scanner->val[OPT_TL_Y].w) * dpmm;
+ scanner->frame.x1 = SANE_UNFIX(scanner->val[OPT_BR_X].w) * dpmm;
+ scanner->frame.y1 = SANE_UNFIX(scanner->val[OPT_BR_Y].w) * dpmm;
+ scanner->frame.index = 0x80; /* 0x80: value from cyberview */
+ sanei_pieusb_cmd_set_scan_frame (scanner->device_number, scanner->frame.index, &(scanner->frame), &status);
+ DBG (DBG_info_sane, "sanei_pieusb_set_frame_from_options(): sanei_pieusb_cmd_set_scan_frame status %s\n", sane_strstatus (sanei_pieusb_convert_status (status.pieusb_status)));
+ return status.pieusb_status;
+}
+
+/*
+ * Set mode (from scanner options)
+ */
+
+SANE_Status
+sanei_pieusb_set_mode_from_options(Pieusb_Scanner * scanner)
+{
+ struct Pieusb_Command_Status status;
+ const char *mode;
+ SANE_Status res;
+
+ mode = scanner->val[OPT_MODE].s;
+ if (strcmp (mode, SANE_VALUE_SCAN_MODE_LINEART) == 0) {
+ scanner->mode.passes = SCAN_FILTER_GREEN; /* G */
+ scanner->mode.colorFormat = SCAN_COLOR_FORMAT_PIXEL;
+ } else if(strcmp (mode, SANE_VALUE_SCAN_MODE_HALFTONE) == 0) {
+ scanner->mode.passes = SCAN_FILTER_GREEN; /* G */
+ scanner->mode.colorFormat = SCAN_COLOR_FORMAT_PIXEL;
+ } else if(strcmp (mode, SANE_VALUE_SCAN_MODE_GRAY) == 0) {
+ scanner->mode.passes = SCAN_FILTER_GREEN; /* G=gray; unable to get R & B & I to work */
+ scanner->mode.colorFormat = SCAN_COLOR_FORMAT_PIXEL;
+ } else if(scanner->val[OPT_PREVIEW].b) {
+ /* Catch preview here, otherwise next ifs get complicated */
+ scanner->mode.passes = SCAN_ONE_PASS_COLOR;
+ scanner->mode.colorFormat = SCAN_COLOR_FORMAT_INDEX; /* pixel format might be an alternative */
+ } else if(strcmp (mode, SANE_VALUE_SCAN_MODE_RGBI) == 0) {
+ scanner->mode.passes = SCAN_ONE_PASS_RGBI;
+ scanner->mode.colorFormat = SCAN_COLOR_FORMAT_INDEX;
+ } else if(strcmp (mode, SANE_VALUE_SCAN_MODE_COLOR) == 0 && scanner->val[OPT_CLEAN_IMAGE].b) {
+ scanner->mode.passes = SCAN_ONE_PASS_RGBI; /* Need infrared for cleaning */
+ scanner->mode.colorFormat = SCAN_COLOR_FORMAT_INDEX;
+ } else { /* SANE_VALUE_SCAN_MODE_COLOR */
+ scanner->mode.passes = SCAN_ONE_PASS_COLOR;
+ scanner->mode.colorFormat = SCAN_COLOR_FORMAT_INDEX; /* pixel format might be an alternative */
+ }
+ /* Resolution */
+ if (scanner->val[OPT_PREVIEW].b) {
+ scanner->mode.resolution = scanner->device->fast_preview_resolution;
+ DBG (DBG_info_sane, "sanei_pieusb_set_mode_from_options(): resolution fast preview (%d)\n", scanner->mode.resolution);
+ } else {
+ scanner->mode.resolution = SANE_UNFIX (scanner->val[OPT_RESOLUTION].w);
+ DBG (DBG_info_sane, "sanei_pieusb_set_mode_from_options(): resolution from option setting (%d)\n", scanner->mode.resolution);
+ }
+ /* Bit depth: exit on untested values */
+ switch (scanner->val[OPT_BIT_DEPTH].w) {
+ case 1: scanner->mode.colorDepth = SCAN_COLOR_DEPTH_1; break;
+ case 8: scanner->mode.colorDepth = SCAN_COLOR_DEPTH_8; break;
+ case 16: scanner->mode.colorDepth = SCAN_COLOR_DEPTH_16; break;
+ default: /* 4, 10 & 12 */
+ DBG (DBG_error, "sanei_pieusb_set_mode_from_options(): sanei_pieusb_cmd_set_scan_frame untested bit depth %d\n", scanner->val[OPT_BIT_DEPTH].w);
+ return SANE_STATUS_INVAL;
+ }
+ scanner->mode.byteOrder = 0x01; /* 0x01 = Intel; only bit 0 used */
+ scanner->mode.sharpen = scanner->val[OPT_SHARPEN].b && !scanner->val[OPT_PREVIEW].b;
+ scanner->mode.skipShadingAnalysis = !scanner->val[OPT_SHADING_ANALYSIS].b;
+ scanner->mode.fastInfrared = scanner->val[OPT_FAST_INFRARED].b && !scanner->val[OPT_PREVIEW].b;
+ if (strcmp (scanner->val[OPT_HALFTONE_PATTERN].s, "53lpi 45d ROUND") == 0) {
+ scanner->mode.halftonePattern = 0;
+ } else { /*TODO: the others */
+ scanner->mode.halftonePattern = 0;
+ }
+ scanner->mode.lineThreshold = SANE_UNFIX (scanner->val[OPT_THRESHOLD].w) / 100 * 0xFF; /* 0xFF = 100% */
+ sanei_pieusb_cmd_set_mode (scanner->device_number, &(scanner->mode), &status);
+ res = sanei_pieusb_convert_status(status.pieusb_status);
+ if (res == SANE_STATUS_GOOD) {
+ res = sanei_pieusb_wait_ready (scanner, 0);
+ }
+ DBG (DBG_info_sane, "sanei_pieusb_set_mode_from_options(): sanei_pieusb_cmd_set_mode status %s\n", sane_strstatus(res));
+ return res;
+}
+
+/**
+ * Set gains, exposure and offset, to:
+ * - values default (pieusb_set_default_gain_offset)
+ * - values set by options
+ * - values set by auto-calibration procedure
+ * - values determined from preceeding preview
+ *
+ * @param scanner
+ * @return
+ */
+SANE_Status
+sanei_pieusb_set_gain_offset(Pieusb_Scanner * scanner, const char *calibration_mode)
+{
+ struct Pieusb_Command_Status status;
+ SANE_Status ret;
+ double gain;
+
+ DBG (DBG_info,"sanei_pieusb_set_gain_offset(): mode = %s\n", calibration_mode);
+
+ if (strcmp (calibration_mode, SCAN_CALIBRATION_DEFAULT) == 0) {
+ /* Default values */
+ DBG(DBG_info_sane,"sanei_pieusb_set_gain_offset(): get calibration data from defaults\n");
+ scanner->settings.exposureTime[0] = DEFAULT_EXPOSURE;
+ scanner->settings.exposureTime[1] = DEFAULT_EXPOSURE;
+ scanner->settings.exposureTime[2] = DEFAULT_EXPOSURE;
+ scanner->settings.exposureTime[3] = DEFAULT_EXPOSURE;
+ scanner->settings.offset[0] = DEFAULT_OFFSET;
+ scanner->settings.offset[1] = DEFAULT_OFFSET;
+ scanner->settings.offset[2] = DEFAULT_OFFSET;
+ scanner->settings.offset[3] = DEFAULT_OFFSET;
+ scanner->settings.gain[0] = DEFAULT_GAIN;
+ scanner->settings.gain[1] = DEFAULT_GAIN;
+ scanner->settings.gain[2] = DEFAULT_GAIN;
+ scanner->settings.gain[3] = DEFAULT_GAIN;
+ scanner->settings.light = DEFAULT_LIGHT;
+ scanner->settings.extraEntries = DEFAULT_ADDITIONAL_ENTRIES;
+ scanner->settings.doubleTimes = DEFAULT_DOUBLE_TIMES;
+ status.pieusb_status = PIEUSB_STATUS_GOOD;
+ } else if ((strcmp(calibration_mode, SCAN_CALIBRATION_PREVIEW) == 0)
+ && scanner->preview_done) {
+ /* If no preview data availble, do the auto-calibration. */
+ double dg, dgi;
+ DBG (DBG_info, "sanei_pieusb_set_gain_offset(): get calibration data from preview. scanner->mode.passes %d\n", scanner->mode.passes);
+ switch (scanner->mode.passes) {
+ case SCAN_ONE_PASS_RGBI:
+ dg = 3.00;
+ dgi = ((double)scanner->settings.saturationLevel[0] / 65536) / ((double)scanner->preview_upper_bound[0] / HISTOGRAM_SIZE);
+ if (dgi < dg) dg = dgi;
+ dgi = ((double)scanner->settings.saturationLevel[1] / 65536) / ((double)scanner->preview_upper_bound[1] / HISTOGRAM_SIZE);
+ if (dgi < dg) dg = dgi;
+ dgi = ((double)scanner->settings.saturationLevel[2] / 65536) / ((double)scanner->preview_upper_bound[2] / HISTOGRAM_SIZE);
+ if (dgi < dg) dg = dgi;
+ updateGain2(scanner, 0, dg);
+ updateGain2(scanner, 1, dg);
+ updateGain2(scanner, 2, dg);
+ break;
+ case SCAN_ONE_PASS_COLOR:
+ dg = 3.00;
+ dgi = ((double)scanner->settings.saturationLevel[0] / 65536) / ((double)scanner->preview_upper_bound[0] / HISTOGRAM_SIZE);
+ if (dgi < dg) dg = dgi;
+ dgi = ((double)scanner->settings.saturationLevel[1] / 65536) / ((double)scanner->preview_upper_bound[1] / HISTOGRAM_SIZE);
+ if (dgi < dg) dg = dgi;
+ dgi = ((double)scanner->settings.saturationLevel[2] / 65536) / ((double)scanner->preview_upper_bound[2] / HISTOGRAM_SIZE);
+ if (dgi < dg) dg = dgi;
+ updateGain2(scanner, 0, dg);
+ updateGain2(scanner, 1, dg);
+ updateGain2(scanner, 2, dg);
+ break;
+ case SCAN_FILTER_BLUE:
+ dg = 3.00;
+ dgi = ((double)scanner->settings.saturationLevel[2] / 65536) / ((double)scanner->preview_upper_bound[2] / HISTOGRAM_SIZE);
+ if (dgi < dg) dg = dgi;
+ updateGain2(scanner, 2, dg);
+ break;
+ case SCAN_FILTER_GREEN:
+ dg = 3.00;
+ dgi = ((double)scanner->settings.saturationLevel[1] / 65536) / ((double)scanner->preview_upper_bound[1] / HISTOGRAM_SIZE);
+ if (dgi < dg) dg = dgi;
+ updateGain2(scanner, 1, dg);
+ break;
+ case SCAN_FILTER_RED:
+ dg = 3.00;
+ dgi = ((double)scanner->settings.saturationLevel[0] / 65536) / ((double)scanner->preview_upper_bound[0] / HISTOGRAM_SIZE);
+ if (dgi < dg) dg = dgi;
+ updateGain2(scanner, 0, dg);
+ break;
+ case SCAN_FILTER_NEUTRAL:
+ break;
+ }
+ status.pieusb_status = PIEUSB_STATUS_GOOD;
+ } else if (strcmp (calibration_mode, SCAN_CALIBRATION_OPTIONS) == 0) {
+ DBG (DBG_info_sane, "sanei_pieusb_set_gain_offset(): get calibration data from options\n");
+ /* Exposure times */
+ scanner->settings.exposureTime[0] = scanner->val[OPT_SET_EXPOSURE_R].w;
+ scanner->settings.exposureTime[1] = scanner->val[OPT_SET_EXPOSURE_G].w;
+ scanner->settings.exposureTime[2] = scanner->val[OPT_SET_EXPOSURE_B].w;
+ scanner->settings.exposureTime[3] = scanner->val[OPT_SET_EXPOSURE_I].w; /* Infrared */
+ /* Offsets */
+ scanner->settings.offset[0] = scanner->val[OPT_SET_OFFSET_R].w;
+ scanner->settings.offset[1] = scanner->val[OPT_SET_OFFSET_G].w;
+ scanner->settings.offset[2] = scanner->val[OPT_SET_OFFSET_B].w;
+ scanner->settings.offset[3] = scanner->val[OPT_SET_OFFSET_I].w; /* Infrared */
+ /* Gains */
+ scanner->settings.gain[0] = scanner->val[OPT_SET_GAIN_R].w;
+ scanner->settings.gain[1] = scanner->val[OPT_SET_GAIN_G].w;
+ scanner->settings.gain[2] = scanner->val[OPT_SET_GAIN_B].w;
+ scanner->settings.gain[3] = scanner->val[OPT_SET_GAIN_I].w; /* Infrared */
+ /* Light, extra entries and doubling */
+ scanner->settings.light = scanner->val[OPT_LIGHT].w;
+ scanner->settings.extraEntries = DEFAULT_ADDITIONAL_ENTRIES;
+ scanner->settings.doubleTimes = scanner->val[OPT_DOUBLE_TIMES].w;
+ status.pieusb_status = PIEUSB_STATUS_GOOD;
+ } else { /* SCAN_CALIBRATION_AUTO */
+ DBG (DBG_info_sane, "sanei_pieusb_set_gain_offset(): get calibration data from scanner\n");
+ sanei_pieusb_cmd_get_gain_offset (scanner->device_number, &scanner->settings, &status);
+ }
+ /* Check status */
+ if (status.pieusb_status == PIEUSB_STATUS_DEVICE_BUSY) {
+ ret = sanei_pieusb_wait_ready (scanner, 0);
+ if (ret != SANE_STATUS_GOOD) {
+ DBG (DBG_error,"sanei_pieusb_set_gain_offset(): not ready after sanei_pieusb_cmd_get_gain_offset(): %d\n", ret);
+ return ret;
+ }
+ }
+ else if (status.pieusb_status != PIEUSB_STATUS_GOOD) {
+ return SANE_STATUS_INVAL;
+ }
+ /* Adjust gain */
+ gain = 1.0;
+ if (strcmp (scanner->val[OPT_GAIN_ADJUST].s, SCAN_GAIN_ADJUST_03) == 0) {
+ gain = 0.3;
+ } else if (strcmp (scanner->val[OPT_GAIN_ADJUST].s, SCAN_GAIN_ADJUST_05) == 0) {
+ gain = 0.5;
+ } else if (strcmp (scanner->val[OPT_GAIN_ADJUST].s, SCAN_GAIN_ADJUST_08) == 0) {
+ gain = 0.8;
+ } else if (strcmp (scanner->val[OPT_GAIN_ADJUST].s, SCAN_GAIN_ADJUST_10) == 0) {
+ gain = 1.0;
+ } else if (strcmp (scanner->val[OPT_GAIN_ADJUST].s, SCAN_GAIN_ADJUST_12) == 0) {
+ gain = 1.2;
+ } else if (strcmp (scanner->val[OPT_GAIN_ADJUST].s, SCAN_GAIN_ADJUST_16) == 0) {
+ gain = 1.6;
+ } else if (strcmp (scanner->val[OPT_GAIN_ADJUST].s, SCAN_GAIN_ADJUST_19) == 0) {
+ gain = 1.9;
+ } else if (strcmp (scanner->val[OPT_GAIN_ADJUST].s, SCAN_GAIN_ADJUST_24) == 0) {
+ gain = 2.4;
+ } else if (strcmp (scanner->val[OPT_GAIN_ADJUST].s, SCAN_GAIN_ADJUST_30) == 0) {
+ gain = 3.0;
+ }
+ switch (scanner->mode.passes) {
+ case SCAN_ONE_PASS_RGBI:
+ case SCAN_ONE_PASS_COLOR:
+ updateGain2 (scanner, 0, gain);
+ updateGain2 (scanner, 1, gain);
+ updateGain2 (scanner, 2, gain);
+ /* Don't correct IR, hampers cleaning process... */
+ break;
+ case SCAN_FILTER_INFRARED:
+ updateGain2 (scanner, 3, gain);
+ break;
+ case SCAN_FILTER_BLUE:
+ updateGain2 (scanner, 2, gain);
+ break;
+ case SCAN_FILTER_GREEN:
+ updateGain2 (scanner, 1, gain);
+ break;
+ case SCAN_FILTER_RED:
+ updateGain2 (scanner, 0, gain);
+ break;
+ case SCAN_FILTER_NEUTRAL:
+ break;
+ }
+ /* Now set values for gain, offset and exposure */
+ sanei_pieusb_cmd_set_gain_offset (scanner->device_number, &(scanner->settings), &status);
+ ret = sanei_pieusb_convert_status (status.pieusb_status);
+ DBG (DBG_info_sane, "sanei_pieusb_set_gain_offset(): status %s\n", sane_strstatus (ret));
+ return ret;
+}
+
+/*
+ * get shading data
+ * must be called immediately after sanei_pieusb_set_gain_offset
+ */
+
+SANE_Status
+sanei_pieusb_get_shading_data(Pieusb_Scanner * scanner)
+{
+ struct Pieusb_Command_Status status;
+ SANE_Int shading_width;
+ SANE_Int shading_height;
+ SANE_Byte* buffer;
+ SANE_Int lines;
+ SANE_Int cols;
+ SANE_Int size;
+ SANE_Status res = SANE_STATUS_GOOD;
+
+ DBG (DBG_info_sane, "sanei_pieusb_get_shading_data()\n");
+ shading_width = scanner->device->shading_parameters[0].pixelsPerLine;
+ shading_height = scanner->device->shading_parameters[0].nLines;
+ if (shading_height < 1) {
+ DBG (DBG_error, "shading_height < 1\n");
+ return SANE_STATUS_INVAL;
+ }
+ switch (scanner->mode.colorFormat) {
+ case SCAN_COLOR_FORMAT_PIXEL: /* Pixel */
+ lines = shading_height * 4;
+ cols = 2 * shading_width;
+ break;
+ case SCAN_COLOR_FORMAT_INDEX: /* Indexed */
+ lines = shading_height * 4;
+ cols = (2 * shading_width + 2);
+ break;
+ default:
+ DBG (DBG_error, "sanei_pieusb_get_shading_data(): color format %d not implemented\n", scanner->mode.colorFormat);
+ return SANE_STATUS_INVAL;
+ }
+
+ size = cols * lines;
+ buffer = malloc (size);
+ if (buffer == NULL) {
+ return SANE_STATUS_NO_MEM;
+ }
+ sanei_pieusb_cmd_get_scanned_lines (scanner->device_number, buffer, 4, cols * 4, &status);
+ if (status.pieusb_status == PIEUSB_STATUS_GOOD) {
+ res = sanei_pieusb_wait_ready (scanner, 0);
+ if (res == SANE_STATUS_GOOD) {
+ sanei_pieusb_cmd_get_scanned_lines (scanner->device_number, buffer + cols*4, lines - 4, (lines - 4) * cols, &status);
+ if (status.pieusb_status == PIEUSB_STATUS_GOOD) {
+ pieusb_calculate_shading (scanner, buffer);
+ }
+ res = sanei_pieusb_convert_status (status.pieusb_status);
+ }
+ }
+ else {
+ res = sanei_pieusb_convert_status (status.pieusb_status);
+ }
+ free (buffer);
+ return res;
+}
+
+/*
+ *
+ */
+
+SANE_Status
+sanei_pieusb_get_ccd_mask(Pieusb_Scanner * scanner)
+{
+ struct Pieusb_Command_Status status;
+
+ DBG(DBG_info_proc, "sanei_pieusb_get_ccd_mask()\n");
+
+ sanei_pieusb_cmd_get_ccd_mask(scanner->device_number, scanner->ccd_mask, scanner->ccd_mask_size, &status);
+ if (status.pieusb_status == PIEUSB_STATUS_GOOD) {
+ /* Save CCD mask */
+ if (scanner->val[OPT_SAVE_CCDMASK].b) {
+ FILE* fs = fopen ("pieusb.ccd", "w");
+ fwrite (scanner->ccd_mask, 1, scanner->ccd_mask_size, fs);
+ fclose (fs);
+ }
+ }
+ return sanei_pieusb_convert_status(status.pieusb_status);
+
+}
+
+/**
+ * Read parameters from scanner
+ * and initialize SANE parameters
+ *
+ * @param scanner
+ * @return parameter_bytes for use in get_scan_data()
+ */
+SANE_Status
+sanei_pieusb_get_parameters(Pieusb_Scanner * scanner, SANE_Int *parameter_bytes)
+{
+ struct Pieusb_Command_Status status;
+ struct Pieusb_Scan_Parameters parameters;
+ const char *mode;
+
+ DBG (DBG_info_proc, "sanei_pieusb_get_parameters()\n");
+
+ sanei_pieusb_cmd_get_parameters (scanner->device_number, &parameters, &status);
+ if (status.pieusb_status != PIEUSB_STATUS_GOOD) {
+ return sanei_pieusb_convert_status (status.pieusb_status);
+ }
+ *parameter_bytes = parameters.bytes;
+ /* Use response from sanei_pieusb_cmd_get_parameters() for initialization of SANE parameters.
+ * Note the weird values of the bytes-field: this is because of the colorFormat
+ * setting in sanei_pieusb_cmd_set_mode(). The single-color modes all use the pixel format,
+ * which makes sanei_pieusb_cmd_get_parameters() return a full color line although just
+ * one color actually contains data. For the index format, the bytes field
+ * gives the size of a single color line. */
+ mode = scanner->val[OPT_MODE].s;
+ if (strcmp (mode, SANE_VALUE_SCAN_MODE_LINEART) == 0) {
+ scanner->scan_parameters.format = SANE_FRAME_GRAY;
+ scanner->scan_parameters.depth = 1;
+ scanner->scan_parameters.bytes_per_line = parameters.bytes/3;
+ } else if (strcmp (mode, SANE_VALUE_SCAN_MODE_HALFTONE) == 0) {
+ scanner->scan_parameters.format = SANE_FRAME_GRAY;
+ scanner->scan_parameters.depth = 1;
+ scanner->scan_parameters.bytes_per_line = parameters.bytes/3;
+ } else if (strcmp (mode, SANE_VALUE_SCAN_MODE_GRAY) == 0) {
+ scanner->scan_parameters.format = SANE_FRAME_GRAY;
+ scanner->scan_parameters.depth = scanner->val[OPT_BIT_DEPTH].w;
+ scanner->scan_parameters.bytes_per_line = parameters.bytes/3;
+ } else if (strcmp (mode, SANE_VALUE_SCAN_MODE_RGBI) == 0) {
+ scanner->scan_parameters.format = SANE_FRAME_RGB; /* was: SANE_FRAME_RGBI */
+ scanner->scan_parameters.depth = scanner->val[OPT_BIT_DEPTH].w;
+ scanner->scan_parameters.bytes_per_line = 4*parameters.bytes;
+ } else { /* SANE_VALUE_SCAN_MODE_COLOR, with and without option clean image set */
+ scanner->scan_parameters.format = SANE_FRAME_RGB;
+ scanner->scan_parameters.depth = scanner->val[OPT_BIT_DEPTH].w;
+ scanner->scan_parameters.bytes_per_line = 3*parameters.bytes;
+ }
+ scanner->scan_parameters.lines = parameters.lines;
+ scanner->scan_parameters.pixels_per_line = parameters.width;
+ scanner->scan_parameters.last_frame = SANE_TRUE;
+
+ DBG (DBG_info_sane,"sanei_pieusb_get_parameters(): mode '%s'\n", mode);
+ DBG (DBG_info_sane," format = %d\n", scanner->scan_parameters.format);
+ DBG (DBG_info_sane," depth = %d\n", scanner->scan_parameters.depth);
+ DBG (DBG_info_sane," bytes_per_line = %d\n", scanner->scan_parameters.bytes_per_line);
+ DBG (DBG_info_sane," lines = %d\n", scanner->scan_parameters.lines);
+ DBG (DBG_info_sane," pixels_per_line = %d\n", scanner->scan_parameters.pixels_per_line);
+ DBG (DBG_info_sane," last_frame = %d\n", scanner->scan_parameters.last_frame);
+
+ return SANE_STATUS_GOOD;
+}
+
+SANE_Status
+sanei_pieusb_get_scan_data(Pieusb_Scanner * scanner, SANE_Int parameter_bytes)
+{
+ struct Pieusb_Command_Status status;
+ SANE_Parameters *parameters = &scanner->scan_parameters;
+ SANE_Int lines_to_read, lines_remaining;
+ SANE_Int ppl, bpl;
+ SANE_Byte *linebuf, *lboff;
+ SANE_Bool compress;
+ int n, k, i;
+
+ switch (scanner->mode.colorFormat) {
+ case SCAN_COLOR_FORMAT_PIXEL: /* Pixel */
+ lines_to_read = scanner->buffer.height;
+ break;
+ case SCAN_COLOR_FORMAT_INDEX: /* Indexed */
+ lines_to_read = scanner->buffer.colors * scanner->buffer.height;
+ break;
+ default:
+ DBG(DBG_error, "sanei_pieusb_get_scan_data(): color format %d not implemented\n",scanner->mode.colorFormat);
+ return SANE_STATUS_INVAL;
+ }
+ lines_remaining = lines_to_read;
+ DBG (DBG_info_proc, "sanei_pieusb_get_scan_data(colorFormat %d), lines_to_read %d, bytes %d\n", scanner->mode.colorFormat, lines_to_read, parameter_bytes);
+
+ /*
+ fdraw = open("/tmp/pieusb.raw", O_WRONLY | O_CREAT | O_TRUNC, (mode_t)0600);
+ if (fdraw == -1) {
+ perror("error opening raw image buffer file");
+ }
+*/
+ while (lines_remaining > 0) {
+ SANE_Int lines;
+ /* Read lines */
+ /* The amount of bytes_per_line varies with color format setting; only 'pixel' and 'index' implemented */
+ ppl = parameters->pixels_per_line;
+ switch (scanner->mode.colorFormat) {
+ case SCAN_COLOR_FORMAT_PIXEL: /* Pixel */
+ bpl = parameter_bytes;
+ break;
+ case SCAN_COLOR_FORMAT_INDEX: /* Indexed */
+ bpl = parameter_bytes + 2; /* Index bytes! */
+ break;
+ default:
+ DBG(DBG_error, "sanei_pieusb_get_scan_data(): color format %d not implemented\n", scanner->mode.colorFormat);
+ return SANE_STATUS_INVAL;
+ }
+ lines = (lines_remaining < 256) ? lines_remaining : 255;
+ DBG(DBG_info_sane, "sanei_pieusb_get_scan_data(): reading lines: now %d, bytes per line = %d\n", lines, bpl);
+ linebuf = malloc(lines * bpl);
+ sanei_pieusb_cmd_get_scanned_lines(scanner->device_number, linebuf, lines, lines * bpl, &status);
+ if (status.pieusb_status != PIEUSB_STATUS_GOOD ) {
+ /* Error, return */
+ free(linebuf);
+ return SANE_STATUS_INVAL;
+ }
+ /* Save raw data */
+/*
+ if (fdraw != -1) {
+ wcnt = write(fdraw,linebuf,parameters.lines*bpl);
+ DBG(DBG_info_sane,"Raw written %d\n",wcnt);
+ }
+*/
+ /* Copy into official buffer
+ * Sometimes the scanner returns too many lines. Take care not to
+ * overflow the buffer. */
+ lboff = linebuf;
+ switch (scanner->mode.colorFormat) {
+ case SCAN_COLOR_FORMAT_PIXEL:
+ /* The scanner may return lines with 3 colors even though only
+ * one color is actually scanned. Detect this situation and
+ * eliminate the excess samples from the line buffer before
+ * handing it to buffer_put_full_color_line(). */
+ compress = SANE_FALSE;
+ if (scanner->buffer.colors == 1
+ && (bpl * scanner->buffer.packing_density / ppl) == (3 * scanner->buffer.packet_size_bytes)) {
+ compress = SANE_TRUE;
+ }
+ for (n = 0; n < lines; n++) {
+ if (compress) {
+ /* Move samples to fill up all unused locations */
+ int ps = scanner->buffer.packet_size_bytes;
+ for (k = 0; k < scanner->buffer.line_size_packets; k++) {
+ for (i = 0; i < ps; i++) {
+ lboff[ps*k+i] = lboff[3*ps*k+i];
+ }
+ }
+ }
+ if (sanei_pieusb_buffer_put_full_color_line(&scanner->buffer, lboff, bpl/3) == 0) {
+ /* Error, return */
+ return SANE_STATUS_INVAL;
+ }
+ lboff += bpl;
+ }
+ break;
+ case SCAN_COLOR_FORMAT_INDEX:
+ /* Indexed data */
+ for (n = 0; n < lines; n++) {
+ if (sanei_pieusb_buffer_put_single_color_line(&scanner->buffer, *lboff, lboff+2, bpl-2) == 0) {
+ /* Error, return */
+ return SANE_STATUS_INVAL;
+ }
+ lboff += bpl;
+ }
+ break;
+ default:
+ DBG(DBG_error, "sanei_pieusb_get_scan_data(): store color format %d not implemented\n", scanner->mode.colorFormat);
+ free(linebuf);
+ return SANE_STATUS_INVAL;
+ }
+ free(linebuf);
+ lines_remaining -= lines; /* Note: excess discarded */
+ DBG(DBG_info_sane, "sanei_pieusb_get_scan_data(): reading lines: remaining %d\n", lines_remaining);
+ }
+/*
+ if (fdraw != -1) close(fdraw);
+*/
+ return SANE_STATUS_GOOD;
+}
+
+/**
+ * Wait for scanner to get ready
+ *
+ * loop of test_ready/read_state
+ *
+ * @param scanner
+ * @param device_number, used if scanner == NULL
+ * @return SANE_Status
+ */
+
+SANE_Status
+sanei_pieusb_wait_ready(Pieusb_Scanner * scanner, SANE_Int device_number)
+{
+ struct Pieusb_Command_Status status;
+ struct Pieusb_Scanner_State state;
+ time_t start, elapsed;
+
+ DBG (DBG_info_proc, "sanei_pieusb_wait_ready()\n");
+ start = time(NULL);
+ if (scanner)
+ device_number = scanner->device_number;
+
+ for(;;) {
+ sanei_pieusb_cmd_test_unit_ready(device_number, &status);
+ DBG (DBG_info_proc, "-> sanei_pieusb_cmd_test_unit_ready: %d\n", status.pieusb_status);
+ if (status.pieusb_status == PIEUSB_STATUS_GOOD)
+ break;
+ if (status.pieusb_status == PIEUSB_STATUS_IO_ERROR)
+ break;
+ sanei_pieusb_cmd_read_state(device_number, &state, &status);
+ DBG (DBG_info_proc, "-> sanei_pieusb_cmd_read_state: %d\n", status.pieusb_status);
+ if (status.pieusb_status != PIEUSB_STATUS_DEVICE_BUSY)
+ break;
+ sleep(2);
+ elapsed = time(NULL) - start;
+ if (elapsed > 120) { /* 2 minute overall timeout */
+ DBG (DBG_error, "scanner not ready after 2 minutes\n");
+ break;
+ }
+ if (elapsed % 2) {
+ DBG (DBG_info, "still waiting for scanner to get ready\n");
+ }
+ }
+ return sanei_pieusb_convert_status(status.pieusb_status);
+}
+
+
+SANE_Status sanei_pieusb_analyze_preview(Pieusb_Scanner * scanner)
+{
+ int k, n;
+ SANE_Parameters params;
+ SANE_Int N;
+ double *norm_histo;
+ double level;
+
+ DBG(DBG_info, "sanei_pieusb_analyze_preview(): saving preview data\n");
+
+ /* Settings */
+ scanner->preview_done = SANE_TRUE;
+ for (k = 0; k < 4; k++) {
+ scanner->preview_exposure[k] = scanner->settings.exposureTime[k];
+ scanner->preview_gain[k] = scanner->settings.gain[k];
+ scanner->preview_offset[k] = scanner->settings.offset[k];
+ }
+ /* Analyze color planes */
+ N = scanner->buffer.width * scanner->buffer.height;
+ params.format = SANE_FRAME_GRAY;
+ params.depth = scanner->buffer.depth;
+ params.pixels_per_line = scanner->buffer.width;
+ params.lines = scanner->buffer.height;
+ for (k = 0; k < scanner->buffer.colors; k++) {
+ /* Create histogram for color k */
+ sanei_ir_create_norm_histogram (&params, scanner->buffer.data + k * N, &norm_histo);
+ /* Find 1% and 99% limits */
+ level = 0;
+ for (n =0; n < HISTOGRAM_SIZE; n++) {
+
+ level += norm_histo[n];
+ if (level < 0.01) {
+ scanner->preview_lower_bound[k] = n;
+ }
+ if (level < 0.99) {
+ scanner->preview_upper_bound[k] = n;
+ }
+ }
+ DBG(DBG_info,"sanei_pieusb_analyze_preview(): 1%%-99%% levels for color %d: %d - %d\n", k, scanner->preview_lower_bound[k], scanner->preview_upper_bound[k]);
+ }
+ /* Disable remaining color planes */
+ for (k = scanner->buffer.colors; k < 4; k++) {
+ scanner->preview_lower_bound[k] = 0;
+ scanner->preview_upper_bound[k] = 0;
+ }
+ return SANE_STATUS_GOOD;
+}
+
+
+/**
+ * Return actual gain at given gain setting
+ *
+ * @param gain Gain setting (0 - 63)
+ * @return
+ */
+static double getGain(int gain)
+{
+ int k;
+
+ /* Actually an error, but don't be picky */
+ if (gain <= 0) {
+ return gains[0];
+ }
+ /* A gain > 63 is also an error, but don't be picky */
+ if (gain >= 60) {
+ return (gain-55)*(gains[12]-gains[11])/5 + gains[11];
+ }
+ /* Interpolate other values */
+ k = gain/5; /* index of array value just below given gain */
+ return (gain-5*k)*(gains[k+1]-gains[k])/5 + gains[k];
+}
+
+static int getGainSetting(double gain)
+{
+ int k, m;
+
+ /* Out of bounds */
+ if (gain < 1.0) {
+ return 0;
+ }
+ if (gain >= gains[12]) {
+ m = 60 + lround((gain-gains[11])/(gains[12]-gains[11])*5);
+ if (m > 63) m = 63;
+ return m;
+ }
+ /* Interpolate the rest */
+ m = 0;
+ for (k = 0; k <= 11; k++) {
+ if (gains[k] <= gain && gain < gains[k+1]) {
+ m = 5*k + lround((gain-gains[k])/(gains[k+1]-gains[k])*5);
+ }
+ }
+ return m;
+}
+
+/**
+ * Modify gain and exposure times in order to make maximal use of the scan depth.
+ * Each color treated separately, infrared excluded.
+ *
+ * This may be too aggressive => leads to a noisy whitish border instead of the orange.
+ * In a couuple of tries, gain was set to values of 60 and above, which introduces
+ * the noise?
+ * The whitish border is logical since the brightest parts of the negative, the
+ * unexposed borders, are amplified to values near CCD saturation, which is white.
+ * Maybe a uniform gain increase for each color is more appropriate? Somewhere
+ * between 2.5 and 3 seems worthwhile trying, see updateGain2().
+ *
+ switch (scanner->mode.passes) {
+ case SCAN_ONE_PASS_RGBI:
+ updateGain(scanner,0);
+ updateGain(scanner,1);
+ updateGain(scanner,2);
+ updateGain(scanner,3);
+ break;
+ case SCAN_ONE_PASS_COLOR:
+ updateGain(scanner,0);
+ updateGain(scanner,1);
+ updateGain(scanner,2);
+ break;
+ case SCAN_FILTER_INFRARED:
+ updateGain(scanner,3);
+ break;
+ case SCAN_FILTER_BLUE:
+ updateGain(scanner,2);
+ break;
+ case SCAN_FILTER_GREEN:
+ updateGain(scanner,1);
+ break;
+ case SCAN_FILTER_RED:
+ updateGain(scanner,0);
+ break;
+ case SCAN_FILTER_NEUTRAL:
+ break;
+ }
+ * @param scanner
+ */
+/*
+static void updateGain(Pieusb_Scanner *scanner, int color_index)
+{
+ double g, dg;
+
+ DBG(DBG_info_sane,"updateGain(): color %d preview used G=%d Exp=%d\n", color_index, scanner->preview_gain[color_index], scanner->preview_exposure[color_index]);
+ // Additional gain to obtain
+ dg = ((double)scanner->settings.saturationLevel[color_index] / 65536) / ((double)scanner->preview_upper_bound[color_index] / HISTOGRAM_SIZE);
+ DBG(DBG_info_sane,"updateGain(): additional gain %f\n", dg);
+ // Achieve this by modifying gain and exposure
+ // Gain used for preview
+ g = getGain(scanner->preview_gain[color_index]);
+ DBG(DBG_info_sane,"updateGain(): preview had gain %d => %f\n",scanner->preview_gain[color_index],g);
+ // Look up new gain setting g*sqrt(dg)
+ DBG(DBG_info_sane,"updateGain(): optimized gain * %f = %f\n",sqrt(dg),sqrt(dg)*g);
+ scanner->settings.gain[color_index] = getGainSetting(g*sqrt(dg));
+ DBG(DBG_info_sane,"updateGain(): optimized gain setting %d => %f\n",scanner->settings.gain[color_index],getGain(scanner->settings.gain[color_index]));
+ // Exposure change is straightforward
+ DBG(DBG_info_sane,"updateGain(): remains for exposure %f\n",dg/(getGain(scanner->settings.gain[color_index])/g));
+ scanner->settings.exposureTime[color_index] = lround( g / getGain(scanner->settings.gain[color_index]) * dg * scanner->preview_exposure[color_index] );
+ DBG(DBG_info_sane,"updateGain(): new setting G=%d Exp=%d\n", scanner->settings.gain[color_index], scanner->settings.exposureTime[color_index]);
+}
+*/
+
+static void updateGain2(Pieusb_Scanner *scanner, int color_index, double gain_increase)
+{
+ double g;
+
+ DBG(DBG_info,"updateGain2(): color %d preview used G=%d Exp=%d\n", color_index, scanner->settings.gain[color_index], scanner->settings.exposureTime[color_index]);
+ /* Additional gain to obtain */
+ DBG(DBG_info,"updateGain2(): additional gain %f\n", gain_increase);
+ /* Achieve this by modifying gain and exposure */
+ /* Gain used for preview */
+ g = getGain(scanner->settings.gain[color_index]);
+ DBG(DBG_info,"updateGain2(): preview had gain %d => %f\n", scanner->settings.gain[color_index], g);
+ /* Look up new gain setting g*sqrt(dg) */
+ DBG(DBG_info,"updateGain2(): optimized gain * %f = %f\n", sqrt(gain_increase), sqrt(gain_increase) * g);
+ scanner->settings.gain[color_index] = getGainSetting(g * sqrt(gain_increase));
+ DBG(DBG_info,"updateGain2(): optimized gain setting %d => %f\n", scanner->settings.gain[color_index], getGain(scanner->settings.gain[color_index]));
+ /* Exposure change is straightforward */
+ DBG(DBG_info,"updateGain2(): remains for exposure %f\n", gain_increase / (getGain(scanner->settings.gain[color_index]) / g));
+ scanner->settings.exposureTime[color_index] = lround( g / getGain(scanner->settings.gain[color_index]) * gain_increase * scanner->settings.exposureTime[color_index] );
+ DBG(DBG_info,"updateGain2(): new setting G=%d Exp=%d\n", scanner->settings.gain[color_index], scanner->settings.exposureTime[color_index]);
+}