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authorJörg Frings-Fürst <debian@jff-webhosting.net>2019-07-31 17:00:20 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2019-07-31 17:00:20 +0200
commit3759ce55ba79b8d3b9d8ed247a252273ee7dade3 (patch)
treed69692a274dd1c7d0672e6bb7155a0fc106f9d49 /backend/canon_dr.c
parentc8bd2513ecba169cff44c09c8058c36987357b18 (diff)
parent1687222e1b9e74c89cafbb5910e72d8ec7bfd40f (diff)
Update upstream source from tag 'upstream/1.0.28'
Update to upstream version '1.0.28' with Debian dir ec5bb298266630fc3801ff6dc0c258f6df7ba979
Diffstat (limited to 'backend/canon_dr.c')
-rw-r--r--backend/canon_dr.c743
1 files changed, 499 insertions, 244 deletions
diff --git a/backend/canon_dr.c b/backend/canon_dr.c
index 3c058ab..64aec31 100644
--- a/backend/canon_dr.c
+++ b/backend/canon_dr.c
@@ -10,6 +10,7 @@
Canon, USA. www.usa.canon.com loaned equipment
HPrint hprint.com.br provided funding and testing for DR-2510 support
Stone-IT www.stone-it.com provided funding for DR-2010 and DR-2050 support
+ Smartmatic www.smartmatic.com provided testing and changes for DR-X10C support
--------------------------------------------------------------------------
@@ -165,7 +166,7 @@
- correct rgb padding macro
- skip send_panel and ssm_df commands for DR-20xx scanners
v22 2009-03-25, MAN
- - add deinterlacing code for DR-2510C in duplex and color
+ - add deinterlacing code for DR-2510C in duplex and color
v23 2009-03-27, MAN
- rewrite all image data processing code
- handle more image interlacing formats
@@ -335,6 +336,8 @@
- rename all DUPLEX_INTERLACE_* to indicate start and end of line
v56 2016-08-23, MAN
- initial support for P-150
+ v57 2019-02-24, manuarg
+ - complete support for X-10, including hardware cropping
SANE FLOW DIAGRAM
@@ -352,7 +355,7 @@
. . - sane_start() : start image acquisition
. . - sane_get_parameters() : returns actual scan parameters
. . - sane_read() : read image data (from pipe)
- . . (sane_read called multiple times; after sane_read returns EOF,
+ . . (sane_read called multiple times; after sane_read returns EOF,
. . loop may continue with sane_start which may return a 2nd page
. . when doing duplex scans, or load the next page from the ADF)
. .
@@ -385,14 +388,14 @@
#include "canon_dr.h"
#define DEBUG 1
-#define BUILD 56
+#define BUILD 57
/* values for SANE_DEBUG_CANON_DR env var:
- errors 5
- function trace 10
- function detail 15
- get/setopt cmds 20
- - scsi/usb trace 25
+ - scsi/usb trace 25
- scsi/usb writes 30
- scsi/usb reads 31
- useless noise 35
@@ -455,7 +458,7 @@ static struct scanner *scanner_devList = NULL;
/*
* Called by SANE initially.
- *
+ *
* From the SANE spec:
* This function must be called before any other SANE function can be
* called. The behavior of a SANE backend is undefined if this
@@ -487,7 +490,7 @@ sane_init (SANE_Int * version_code, SANE_Auth_Callback authorize)
/*
* Called by SANE to find out about supported devices.
- *
+ *
* From the SANE spec:
* This function can be used to query the list of devices that are
* available. If the function executes successfully, it stores a
@@ -500,7 +503,7 @@ sane_init (SANE_Int * version_code, SANE_Auth_Callback authorize)
* returned (devices directly attached to the machine that SANE is
* running on). If it is false, the device list includes all remote
* devices that are accessible to the SANE library.
- *
+ *
* SANE does not require that this function is called before a
* sane_open() call is performed. A device name may be specified
* explicitly by a user which would make it unnecessary and
@@ -544,42 +547,42 @@ sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
CANON_DR_CONFIG_FILE);
while (sanei_config_read (line, PATH_MAX, fp)) {
-
+
lp = line;
-
+
/* ignore comments */
if (*lp == '#')
continue;
-
+
/* skip empty lines */
if (*lp == 0)
continue;
-
+
if (!strncmp ("option", lp, 6) && isspace (lp[6])) {
-
+
lp += 6;
lp = sanei_config_skip_whitespace (lp);
-
+
/* BUFFERSIZE: > 4K */
if (!strncmp (lp, "buffer-size", 11) && isspace (lp[11])) {
-
+
int buf;
lp += 11;
lp = sanei_config_skip_whitespace (lp);
buf = atoi (lp);
-
+
if (buf < 4096) {
DBG (5, "sane_get_devices: config option \"buffer-size\" "
"(%d) is < 4096, ignoring!\n", buf);
continue;
}
-
+
if (buf > global_buffer_size_default) {
DBG (5, "sane_get_devices: config option \"buffer-size\" "
"(%d) is > %d, scanning problems may result\n", buf,
global_buffer_size_default);
}
-
+
DBG (15, "sane_get_devices: setting \"buffer-size\" to %d\n",
buf);
@@ -588,24 +591,24 @@ sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
/* PADDED READ: we clamp to 0 or 1 */
else if (!strncmp (lp, "padded-read", 11) && isspace (lp[11])) {
-
+
int buf;
lp += 11;
lp = sanei_config_skip_whitespace (lp);
buf = atoi (lp);
-
+
if (buf < 0) {
DBG (5, "sane_get_devices: config option \"padded-read\" "
"(%d) is < 0, ignoring!\n", buf);
continue;
}
-
+
if (buf > 1) {
DBG (5, "sane_get_devices: config option \"padded-read\" "
"(%d) is > 1, ignoring!\n", buf);
continue;
}
-
+
DBG (15, "sane_get_devices: setting \"padded-read\" to %d\n",
buf);
@@ -614,24 +617,24 @@ sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
/* EXTRA STATUS: we clamp to 0 or 1 */
else if (!strncmp (lp, "extra-status", 12) && isspace (lp[12])) {
-
+
int buf;
lp += 12;
lp = sanei_config_skip_whitespace (lp);
buf = atoi (lp);
-
+
if (buf < 0) {
DBG (5, "sane_get_devices: config option \"extra-status\" "
"(%d) is < 0, ignoring!\n", buf);
continue;
}
-
+
if (buf > 1) {
DBG (5, "sane_get_devices: config option \"extra-status\" "
"(%d) is > 1, ignoring!\n", buf);
continue;
}
-
+
DBG (15, "sane_get_devices: setting \"extra-status\" to %d\n",
buf);
@@ -640,18 +643,18 @@ sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
/* DUPLEXOFFSET: < 2400 */
else if (!strncmp (lp, "duplex-offset", 13) && isspace (lp[13])) {
-
+
int buf;
lp += 13;
lp = sanei_config_skip_whitespace (lp);
buf = atoi (lp);
-
+
if (buf > 2400) {
DBG (5, "sane_get_devices: config option \"duplex-offset\" "
"(%d) is > 2400, ignoring!\n", buf);
continue;
}
-
+
if (buf < 0) {
DBG (5, "sane_get_devices: config option \"duplex-offset\" "
"(%d) is < 0, ignoring!\n", buf);
@@ -671,7 +674,7 @@ sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
lp = sanei_config_skip_whitespace (lp);
strncpy(global_vendor_name, lp, 8);
global_vendor_name[8] = 0;
-
+
DBG (15, "sane_get_devices: setting \"vendor-name\" to %s\n",
global_vendor_name);
}
@@ -683,7 +686,7 @@ sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
lp = sanei_config_skip_whitespace (lp);
strncpy(global_model_name, lp, 16);
global_model_name[16] = 0;
-
+
DBG (15, "sane_get_devices: setting \"model-name\" to %s\n",
global_model_name);
}
@@ -695,7 +698,7 @@ sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
lp = sanei_config_skip_whitespace (lp);
strncpy(global_version_name, lp, 4);
global_version_name[4] = 0;
-
+
DBG (15, "sane_get_devices: setting \"version-name\" to %s\n",
global_version_name);
}
@@ -801,8 +804,8 @@ attach_one_usb (const char *device_name)
return attach_one(device_name,CONNECTION_USB);
}
-/* build the scanner struct and link to global list
- * unless struct is already loaded, then pretend
+/* build the scanner struct and link to global list
+ * unless struct is already loaded, then pretend
*/
static SANE_Status
attach_one (const char *device_name, int connType)
@@ -974,8 +977,8 @@ connect_fd (struct scanner *s)
if(ret == SANE_STATUS_GOOD){
- /* first generation usb scanners can get flaky if not closed
- * properly after last use. very first commands sent to device
+ /* first generation usb scanners can get flaky if not closed
+ * properly after last use. very first commands sent to device
* must be prepared to correct this- see wait_scanner() */
ret = wait_scanner(s);
if (ret != SANE_STATUS_GOOD) {
@@ -1016,9 +1019,9 @@ init_inquire (struct scanner *s)
set_IN_return_size (cmd, inLen);
set_IN_evpd (cmd, 0);
set_IN_page_code (cmd, 0);
-
+
ret = do_cmd (
- s, 1, 0,
+ s, 1, 0,
cmd, cmdLen,
NULL, 0,
in, &inLen
@@ -1323,7 +1326,7 @@ init_model (struct scanner *s)
s->std_res_y[DPI_400]=1;
s->std_res_x[DPI_600]=1;
s->std_res_y[DPI_600]=1;
-
+
/*weirdness*/
s->has_ssm = 0;
s->has_ssm2 = 1;
@@ -1522,7 +1525,7 @@ init_model (struct scanner *s)
s->std_res_y[DPI_400]=1;
s->std_res_x[DPI_600]=1;
s->std_res_y[DPI_600]=1;
-
+
s->has_comp_JPEG = 1;
s->rgb_format = 1;
s->has_df_ultra = 1;
@@ -1562,7 +1565,7 @@ init_model (struct scanner *s)
s->std_res_y[DPI_400]=1;
s->std_res_x[DPI_600]=1;
s->std_res_y[DPI_600]=1;
-
+
s->has_comp_JPEG = 1;
s->rgb_format = 1;
s->has_df_ultra = 1;
@@ -1690,6 +1693,31 @@ init_model (struct scanner *s)
s->can_halftone = 0;
}
+ else if (strstr (s->model_name,"DR-X10C")){
+
+ /* Required for USB coms */
+ s->has_ssm = 0;
+ s->has_ssm2 = 1;
+
+ /* missing */
+ s->std_res_x[DPI_100]=1;
+ s->std_res_y[DPI_100]=1;
+ s->std_res_x[DPI_150]=1;
+ s->std_res_y[DPI_150]=1;
+ s->std_res_x[DPI_200]=1;
+ s->std_res_y[DPI_200]=1;
+ s->std_res_x[DPI_240]=1;
+ s->std_res_y[DPI_240]=1;
+ s->std_res_x[DPI_300]=1;
+ s->std_res_y[DPI_300]=1;
+ s->std_res_x[DPI_400]=1;
+ s->std_res_y[DPI_400]=1;
+ s->std_res_x[DPI_600]=1;
+ s->std_res_y[DPI_600]=1;
+
+ s->has_hwcrop = 1;
+ }
+
DBG (10, "init_model: finish\n");
return SANE_STATUS_GOOD;
@@ -1801,9 +1829,9 @@ init_options (struct scanner *s)
s->opt[i].cap = SANE_CAP_INACTIVE;
}
- /* go ahead and setup the first opt, because
- * frontend may call control_option on it
- * before calling get_option_descriptor
+ /* go ahead and setup the first opt, because
+ * frontend may call control_option on it
+ * before calling get_option_descriptor
*/
s->opt[OPT_NUM_OPTS].name = SANE_NAME_NUM_OPTIONS;
s->opt[OPT_NUM_OPTS].title = SANE_TITLE_NUM_OPTIONS;
@@ -1831,7 +1859,7 @@ sane_open (SANE_String_Const name, SANE_Handle * handle)
struct scanner *dev = NULL;
struct scanner *s = NULL;
SANE_Status ret;
-
+
DBG (10, "sane_open: start\n");
if(scanner_devList){
@@ -1852,7 +1880,7 @@ sane_open (SANE_String_Const name, SANE_Handle * handle)
}
else{
DBG (15, "sane_open: device %s requested\n", name);
-
+
for (dev = scanner_devList; dev; dev = dev->next) {
if (strcmp (dev->sane.name, name) == 0
|| strcmp (dev->device_name, name) == 0) { /*always allow sanei devname*/
@@ -1928,7 +1956,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
}
if(s->has_adf){
s->source_list[i++]=STRING_ADFFRONT;
-
+
if(s->has_back){
s->source_list[i++]=STRING_ADFBACK;
}
@@ -1938,7 +1966,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
}
if(s->has_card){
s->source_list[i++]=STRING_CARDFRONT;
-
+
if(s->has_back){
s->source_list[i++]=STRING_CARDBACK;
}
@@ -1974,7 +2002,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
s->mode_list[i++]=STRING_COLOR;
}
s->mode_list[i]=NULL;
-
+
opt->name = SANE_NAME_SCAN_MODE;
opt->title = SANE_TITLE_SCAN_MODE;
opt->desc = SANE_DESC_SCAN_MODE;
@@ -2041,14 +2069,14 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
s->res_list[++i] = 1200;
}
s->res_list[0] = i;
-
+
opt->name = SANE_NAME_SCAN_RESOLUTION;
opt->title = SANE_TITLE_SCAN_RESOLUTION;
opt->desc = SANE_DESC_SCAN_RESOLUTION;
opt->type = SANE_TYPE_INT;
opt->unit = SANE_UNIT_DPI;
opt->cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
-
+
if(s->step_y_res){
s->res_range.min = s->min_y_res;
s->res_range.max = s->max_y_res;
@@ -2078,7 +2106,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
s->tl_x_range.min = SCANNER_UNIT_TO_FIXED_MM(s->min_x);
s->tl_x_range.max = SCANNER_UNIT_TO_FIXED_MM(get_page_width(s));
s->tl_x_range.quant = MM_PER_UNIT_FIX;
-
+
opt->name = SANE_NAME_SCAN_TL_X;
opt->title = SANE_TITLE_SCAN_TL_X;
opt->desc = SANE_DESC_SCAN_TL_X;
@@ -2096,7 +2124,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
s->tl_y_range.min = SCANNER_UNIT_TO_FIXED_MM(s->min_y);
s->tl_y_range.max = SCANNER_UNIT_TO_FIXED_MM(get_page_height(s));
s->tl_y_range.quant = MM_PER_UNIT_FIX;
-
+
opt->name = SANE_NAME_SCAN_TL_Y;
opt->title = SANE_TITLE_SCAN_TL_Y;
opt->desc = SANE_DESC_SCAN_TL_Y;
@@ -2114,7 +2142,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
s->br_x_range.min = SCANNER_UNIT_TO_FIXED_MM(s->min_x);
s->br_x_range.max = SCANNER_UNIT_TO_FIXED_MM(get_page_width(s));
s->br_x_range.quant = MM_PER_UNIT_FIX;
-
+
opt->name = SANE_NAME_SCAN_BR_X;
opt->title = SANE_TITLE_SCAN_BR_X;
opt->desc = SANE_DESC_SCAN_BR_X;
@@ -2132,7 +2160,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
s->br_y_range.min = SCANNER_UNIT_TO_FIXED_MM(s->min_y);
s->br_y_range.max = SCANNER_UNIT_TO_FIXED_MM(get_page_height(s));
s->br_y_range.quant = MM_PER_UNIT_FIX;
-
+
opt->name = SANE_NAME_SCAN_BR_Y;
opt->title = SANE_TITLE_SCAN_BR_Y;
opt->desc = SANE_DESC_SCAN_BR_Y;
@@ -2370,7 +2398,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
/*double feed by thickness */
if(option==OPT_DF_THICKNESS){
-
+
opt->name = "df-thickness";
opt->title = "DF by thickness";
opt->desc = "Detect double feeds using thickness sensor";
@@ -2482,7 +2510,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
s->do_color_list[5] = STRING_EN_GREEN;
s->do_color_list[6] = STRING_EN_BLUE;
s->do_color_list[7] = NULL;
-
+
opt->name = "dropout-front";
opt->title = "Dropout color front";
opt->desc = "One-pass scanners use only one color during gray or binary scanning, useful for colored paper or ink";
@@ -2510,7 +2538,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
s->do_color_list[5] = STRING_EN_GREEN;
s->do_color_list[6] = STRING_EN_BLUE;
s->do_color_list[7] = NULL;
-
+
opt->name = "dropout-back";
opt->title = "Dropout color back";
opt->desc = "One-pass scanners use only one color during gray or binary scanning, useful for colored paper or ink";
@@ -2551,6 +2579,18 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
opt->constraint_type = SANE_CONSTRAINT_NONE;
}
+ /*hardware crop*/
+ if(option==OPT_HW_CROP){
+ opt->name = "hwcrop";
+ opt->title = "Hardware crop";
+ opt->desc = "Request scanner to crop image automatically";
+ opt->type = SANE_TYPE_BOOL;
+ if (s->has_hwcrop)
+ opt->cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT | SANE_CAP_ADVANCED;
+ else
+ opt->cap = SANE_CAP_INACTIVE;
+ }
+
/* "Sensor" group ------------------------------------------------------ */
if(option==OPT_SENSOR_GROUP){
opt->name = SANE_NAME_SENSORS;
@@ -2671,7 +2711,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
/**
* Gets or sets an option value.
- *
+ *
* From the SANE spec:
* This function is used to set or inquire the current value of option
* number n of the device represented by handle h. The manner in which
@@ -2682,7 +2722,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
* area pointed to by v must be big enough to hold the entire option
* value (determined by member size in the corresponding option
* descriptor).
- *
+ *
* The only exception to this rule is that when setting the value of a
* string option, the string pointed to by argument v may be shorter
* since the backend will stop reading the option value upon
@@ -2918,6 +2958,10 @@ sane_control_option (SANE_Handle handle, SANE_Int option,
*val_p = s->side;
return SANE_STATUS_GOOD;
+ case OPT_HW_CROP:
+ *val_p = s->hwcrop;
+ return SANE_STATUS_GOOD;
+
/* Sensor Group */
case OPT_START:
ret = read_panel(s,OPT_START);
@@ -2999,7 +3043,7 @@ sane_control_option (SANE_Handle handle, SANE_Int option,
* below.
*/
switch (option) {
-
+
/* Mode Group */
case OPT_SOURCE:
if (!strcmp (val, STRING_ADFFRONT)) {
@@ -3024,7 +3068,7 @@ sane_control_option (SANE_Handle handle, SANE_Int option,
tmp = SOURCE_FLATBED;
}
- if (s->u.source == tmp)
+ if (s->u.source == tmp)
return SANE_STATUS_GOOD;
s->u.source = tmp;
@@ -3056,7 +3100,7 @@ sane_control_option (SANE_Handle handle, SANE_Int option,
case OPT_RES:
- if (s->u.dpi_x == val_c && s->u.dpi_y == val_c)
+ if (s->u.dpi_x == val_c && s->u.dpi_y == val_c)
return SANE_STATUS_GOOD;
s->u.dpi_x = val_c;
@@ -3237,6 +3281,10 @@ sane_control_option (SANE_Handle handle, SANE_Int option,
s->buffermode = val_c;
return SANE_STATUS_GOOD;
+ case OPT_HW_CROP:
+ s->hwcrop = val_c;
+ return SANE_STATUS_GOOD;
+
}
} /* else */
@@ -3251,25 +3299,25 @@ ssm_buffer (struct scanner *s)
DBG (10, "ssm_buffer: start\n");
if(s->has_ssm){
-
+
unsigned char cmd[SET_SCAN_MODE_len];
size_t cmdLen = SET_SCAN_MODE_len;
-
+
unsigned char out[SSM_PAY_len];
size_t outLen = SSM_PAY_len;
-
+
memset(cmd,0,cmdLen);
set_SCSI_opcode(cmd, SET_SCAN_MODE_code);
set_SSM_pf(cmd, 1);
set_SSM_pay_len(cmd, outLen);
-
+
memset(out,0,outLen);
if(s->has_ssm_pay_head_len){
set_SSM_pay_head_len(out, SSM_PAY_HEAD_len);
}
set_SSM_page_code(out, SM_pc_buffer);
set_SSM_page_len(out, SSM_PAGE_len);
-
+
if(s->s.source == SOURCE_ADF_DUPLEX || s->s.source == SOURCE_CARD_DUPLEX){
set_SSM_BUFF_duplex(out, 1);
}
@@ -3288,7 +3336,7 @@ ssm_buffer (struct scanner *s)
if(0){
set_SSM_BUFF_unk(out,1);
}
-
+
ret = do_cmd (
s, 1, 0,
cmd, cmdLen,
@@ -3301,20 +3349,20 @@ ssm_buffer (struct scanner *s)
unsigned char cmd[SET_SCAN_MODE2_len];
size_t cmdLen = SET_SCAN_MODE2_len;
-
+
unsigned char out[SSM2_PAY_len];
size_t outLen = SSM2_PAY_len;
-
+
memset(cmd,0,cmdLen);
set_SCSI_opcode(cmd, SET_SCAN_MODE2_code);
set_SSM2_page_code(cmd, SM2_pc_buffer);
set_SSM2_pay_len(cmd, outLen);
-
+
memset(out,0,outLen);
set_SSM2_BUFF_unk(out, !s->buffermode);
set_SSM2_BUFF_unk2(out, 0x40);
set_SSM2_BUFF_sync(out, !s->buffermode);
-
+
ret = do_cmd (
s, 1, 0,
cmd, cmdLen,
@@ -3338,52 +3386,52 @@ ssm_df (struct scanner *s)
SANE_Status ret = SANE_STATUS_GOOD;
DBG (10, "ssm_df: start\n");
-
+
if(!s->has_df){
DBG (10, "ssm_df: unsupported, finishing\n");
return ret;
}
-
+
if(s->has_ssm){
unsigned char cmd[SET_SCAN_MODE_len];
size_t cmdLen = SET_SCAN_MODE_len;
-
+
unsigned char out[SSM_PAY_len];
size_t outLen = SSM_PAY_len;
-
+
memset(cmd,0,cmdLen);
set_SCSI_opcode(cmd, SET_SCAN_MODE_code);
set_SSM_pf(cmd, 1);
set_SSM_pay_len(cmd, outLen);
-
+
memset(out,0,outLen);
if(s->has_ssm_pay_head_len){
set_SSM_pay_head_len(out, SSM_PAY_HEAD_len);
}
set_SSM_page_code(out, SM_pc_df);
set_SSM_page_len(out, SSM_PAGE_len);
-
+
/* deskew by roller */
if(s->rollerdeskew){
set_SSM_DF_deskew_roll(out, 1);
}
-
+
/* staple detection */
if(s->stapledetect){
set_SSM_DF_staple(out, 1);
}
-
+
/* thickness */
if(s->df_thickness){
set_SSM_DF_thick(out, 1);
}
-
+
/* length */
if(s->df_length){
set_SSM_DF_len(out, 1);
}
-
+
ret = do_cmd (
s, 1, 0,
cmd, cmdLen,
@@ -3397,7 +3445,7 @@ ssm_df (struct scanner *s)
unsigned char cmd[SET_SCAN_MODE2_len];
size_t cmdLen = SET_SCAN_MODE2_len;
-
+
unsigned char out[SSM2_PAY_len];
size_t outLen = SSM2_PAY_len;
@@ -3407,11 +3455,11 @@ ssm_df (struct scanner *s)
set_SCSI_opcode(cmd, SET_SCAN_MODE2_code);
set_SSM2_page_code(cmd, SM2_pc_ultra);
set_SSM2_pay_len(cmd, outLen);
-
+
memset(out,0,outLen);
set_SSM2_ULTRA_top(out, 0);
set_SSM2_ULTRA_bot(out, 0);
-
+
ret = do_cmd (
s, 1, 0,
cmd, cmdLen,
@@ -3424,19 +3472,24 @@ ssm_df (struct scanner *s)
set_SCSI_opcode(cmd, SET_SCAN_MODE2_code);
set_SSM2_page_code(cmd, SM2_pc_df);
set_SSM2_pay_len(cmd, outLen);
-
+
memset(out,0,outLen);
-
+
/* thickness */
if(s->df_thickness){
set_SSM2_DF_thick(out, 1);
}
-
+
/* length */
if(s->df_length){
set_SSM2_DF_len(out, 1);
}
-
+
+ /* staple detection */
+ if(s->stapledetect){
+ set_SSM2_DF_staple(out, 1);
+ }
+
ret = do_cmd (
s, 1, 0,
cmd, cmdLen,
@@ -3456,6 +3509,53 @@ ssm_df (struct scanner *s)
}
static SANE_Status
+ssm2_hw_enhancement (struct scanner *s)
+{
+ SANE_Status ret = SANE_STATUS_GOOD;
+
+ DBG (10, "ssm2_hw_enhancement: start\n");
+
+ if(s->has_ssm2){
+ unsigned char cmd[SET_SCAN_MODE2_len];
+ size_t cmdLen = SET_SCAN_MODE2_len;
+
+ unsigned char out[SSM2_PAY_len];
+ size_t outLen = SSM2_PAY_len;
+
+ memset(cmd,0,cmdLen);
+ set_SCSI_opcode(cmd, SET_SCAN_MODE2_code);
+ set_SSM2_page_code(cmd, SM2_pc_hw_enhancement);
+ set_SSM2_pay_len(cmd, outLen);
+
+ memset(out,0,outLen);
+
+ if(s->rollerdeskew){
+ set_SSM2_roller_deskew(out, 1);
+ }
+
+ if(s->hwcrop){
+ set_SSM2_hw_crop(out, 1);
+ }
+
+ ret = do_cmd (
+ s, 1, 0,
+ cmd, cmdLen,
+ out, outLen,
+ NULL, NULL
+ );
+
+ }
+
+ else{
+ DBG (10, "ssm2_hw_enhancement: unsupported\n");
+ }
+
+ DBG (10, "ssm2_hw_enhancement: finish\n");
+
+ return ret;
+}
+
+static SANE_Status
ssm_do (struct scanner *s)
{
SANE_Status ret = SANE_STATUS_GOOD;
@@ -3466,7 +3566,7 @@ ssm_do (struct scanner *s)
DBG (10, "ssm_do: unsupported, finishing\n");
return ret;
}
-
+
if(s->s.mode == MODE_COLOR){
DBG (10, "ssm_do: unneeded, finishing\n");
return ret;
@@ -3476,24 +3576,24 @@ ssm_do (struct scanner *s)
unsigned char cmd[SET_SCAN_MODE_len];
size_t cmdLen = SET_SCAN_MODE_len;
-
+
unsigned char out[SSM_PAY_len];
size_t outLen = SSM_PAY_len;
-
+
memset(cmd,0,cmdLen);
set_SCSI_opcode(cmd, SET_SCAN_MODE_code);
set_SSM_pf(cmd, 1);
set_SSM_pay_len(cmd, outLen);
-
+
memset(out,0,outLen);
if(s->has_ssm_pay_head_len){
set_SSM_pay_head_len(out, SSM_PAY_HEAD_len);
}
set_SSM_page_code(out, SM_pc_dropout);
set_SSM_page_len(out, SSM_PAGE_len);
-
+
set_SSM_DO_unk1(out, 0x03);
-
+
switch(s->dropout_color[SIDE_FRONT]){
case COLOR_RED:
set_SSM_DO_unk2(out, 0x05);
@@ -3520,7 +3620,7 @@ ssm_do (struct scanner *s)
set_SSM_DO_f_en(out,SSM_DO_blue);
break;
}
-
+
switch(s->dropout_color[SIDE_BACK]){
case COLOR_RED:
set_SSM_DO_unk2(out, 0x05);
@@ -3547,7 +3647,7 @@ ssm_do (struct scanner *s)
set_SSM_DO_b_en(out,SSM_DO_blue);
break;
}
-
+
ret = do_cmd (
s, 1, 0,
cmd, cmdLen,
@@ -3561,17 +3661,17 @@ ssm_do (struct scanner *s)
unsigned char cmd[SET_SCAN_MODE2_len];
size_t cmdLen = SET_SCAN_MODE2_len;
-
+
unsigned char out[SSM2_PAY_len];
size_t outLen = SSM2_PAY_len;
-
+
memset(cmd,0,cmdLen);
set_SCSI_opcode(cmd, SET_SCAN_MODE2_code);
set_SSM2_page_code(cmd, SM2_pc_dropout);
set_SSM2_pay_len(cmd, outLen);
-
+
memset(out,0,outLen);
-
+
switch(s->dropout_color[SIDE_FRONT]){
case COLOR_RED:
set_SSM2_DO_do(out,SSM_DO_red);
@@ -3599,6 +3699,46 @@ ssm_do (struct scanner *s)
out, outLen,
NULL, NULL
);
+
+ if(ret == SANE_STATUS_GOOD &&
+ (s->s.source == SOURCE_ADF_DUPLEX || s->s.source == SOURCE_CARD_DUPLEX)){
+
+ memset(cmd,0,cmdLen);
+ set_SCSI_opcode(cmd, SET_SCAN_MODE2_code);
+ set_SSM2_page_code(cmd, SM2_pc_dropout);
+ set_SSM2_DO_side(cmd, SIDE_BACK);
+ set_SSM2_pay_len(cmd, outLen);
+
+ memset(out,0,outLen);
+
+ switch(s->dropout_color[SIDE_BACK]){
+ case COLOR_RED:
+ set_SSM2_DO_do(out,SSM_DO_red);
+ break;
+ case COLOR_GREEN:
+ set_SSM2_DO_do(out,SSM_DO_green);
+ break;
+ case COLOR_BLUE:
+ set_SSM2_DO_do(out,SSM_DO_blue);
+ break;
+ case COLOR_EN_RED:
+ set_SSM2_DO_en(out,SSM_DO_red);
+ break;
+ case COLOR_EN_GREEN:
+ set_SSM2_DO_en(out,SSM_DO_green);
+ break;
+ case COLOR_EN_BLUE:
+ set_SSM2_DO_en(out,SSM_DO_blue);
+ break;
+ }
+
+ ret = do_cmd (
+ s, 1, 0,
+ cmd, cmdLen,
+ out, outLen,
+ NULL, NULL
+ );
+ }
}
else{
@@ -3622,7 +3762,7 @@ read_sensors(struct scanner *s,SANE_Int option)
size_t inLen = R_SENSORS_len;
DBG (10, "read_sensors: start %d\n", option);
-
+
if(!s->can_read_sensors){
DBG (10, "read_sensors: unsupported, finishing\n");
return ret;
@@ -3638,14 +3778,14 @@ read_sensors(struct scanner *s,SANE_Int option)
set_SCSI_opcode(cmd, READ_code);
set_R_datatype_code (cmd, SR_datatype_sensors);
set_R_xfer_length (cmd, inLen);
-
+
ret = do_cmd (
s, 1, 0,
cmd, cmdLen,
NULL, 0,
in, &inLen
);
-
+
if (ret == SANE_STATUS_GOOD || ret == SANE_STATUS_EOF) {
/*set flags indicating there is data to read*/
memset(s->sensors_read,1,sizeof(s->sensors_read));
@@ -3656,12 +3796,12 @@ read_sensors(struct scanner *s,SANE_Int option)
ret = SANE_STATUS_GOOD;
}
}
-
+
if(option)
s->sensors_read[option-OPT_ADF_LOADED] = 0;
DBG (10, "read_sensors: finish\n");
-
+
return ret;
}
@@ -3677,7 +3817,7 @@ read_panel(struct scanner *s,SANE_Int option)
size_t inLen = R_PANEL_len;
DBG (10, "read_panel: start %d\n", option);
-
+
if(!s->can_read_panel){
DBG (10, "read_panel: unsupported, finishing\n");
return ret;
@@ -3693,14 +3833,14 @@ read_panel(struct scanner *s,SANE_Int option)
set_SCSI_opcode(cmd, READ_code);
set_R_datatype_code (cmd, SR_datatype_panel);
set_R_xfer_length (cmd, inLen);
-
+
ret = do_cmd (
s, 1, 0,
cmd, cmdLen,
NULL, 0,
in, &inLen
);
-
+
if (ret == SANE_STATUS_GOOD || ret == SANE_STATUS_EOF) {
/*set flags indicating there is data to read*/
memset(s->panel_read,1,sizeof(s->panel_read));
@@ -3717,12 +3857,12 @@ read_panel(struct scanner *s,SANE_Int option)
ret = SANE_STATUS_GOOD;
}
}
-
+
if(option)
s->panel_read[option-OPT_START] = 0;
DBG (10, "read_panel: finish %d\n",s->panel_counter);
-
+
return ret;
}
@@ -3752,24 +3892,112 @@ send_panel(struct scanner *s)
memset(out,0,outLen);
set_S_PANEL_enable_led(out,s->panel_enable_led);
set_S_PANEL_counter(out,s->panel_counter);
-
+
ret = do_cmd (
s, 1, 0,
cmd, cmdLen,
out, outLen,
NULL, NULL
);
-
+
if (ret == SANE_STATUS_EOF) {
ret = SANE_STATUS_GOOD;
}
-
+
DBG (10, "send_panel: finish %d\n", ret);
-
+
return ret;
}
/*
+ * Request the size of the scanned image
+ */
+/* we should really be updating s->s and s->i instead */
+static SANE_Status
+get_pixelsize(struct scanner *s)
+{
+ SANE_Status ret = SANE_STATUS_GOOD;
+
+ unsigned char cmd[READ_len];
+ size_t cmdLen = READ_len;
+
+ unsigned char in[R_PSIZE_len];
+ size_t inLen = R_PSIZE_len;
+
+ int i = 0;
+ const int MAX_TRIES = 5;
+
+ DBG (10, "get_pixelsize: start\n");
+
+ if(!s->hwcrop){
+ DBG (10, "get_pixelsize: unneeded, finishing\n");
+ return ret;
+ }
+
+ memset(cmd,0,cmdLen);
+ set_SCSI_opcode(cmd, READ_code);
+ set_R_datatype_code(cmd, SR_datatype_pixelsize);
+ set_R_xfer_lid(cmd, 0x02);
+ set_R_xfer_length(cmd, inLen);
+
+ /* May need to retry/block until the scanner is done */
+ for(i=0;i<MAX_TRIES;i++){
+ ret = do_cmd (
+ s, 1, 0,
+ cmd, cmdLen,
+ NULL, 0,
+ in, &inLen
+ );
+
+ if(ret == SANE_STATUS_GOOD &&
+ get_R_PSIZE_width(in) > 0 &&
+ get_R_PSIZE_length(in) > 0){
+
+ DBG (15, "get_pixelsize: w:%d h:%d\n",
+ get_R_PSIZE_width(in) * s->u.dpi_x / 1200,
+ get_R_PSIZE_length(in) * s->u.dpi_y / 1200);
+
+ /*
+ * Round up to byte boundary if needed.
+ * For 1 bpp the resulting size may not fit in a byte boundary.
+ */
+ int remainder = (get_R_PSIZE_width(in) * s->u.dpi_x / 1200) % 8;
+
+ if (s->u.mode < MODE_GRAYSCALE && remainder)
+ {
+ int rounded_up = (8 - remainder) + (get_R_PSIZE_width(in) * s->u.dpi_x / 1200);
+
+ s->u.br_x = rounded_up * 1200 / s->u.dpi_x;
+ }
+ else{
+ s->u.br_x = get_R_PSIZE_width(in);
+ }
+
+ s->u.tl_x = 0;
+ s->u.br_y = get_R_PSIZE_length(in);
+ s->u.tl_y = 0;
+
+ s->u.page_x = s->u.br_x;
+ s->u.page_y = s->u.br_y;
+
+ update_params(s,0);
+ clean_params(s);
+ break;
+ }
+
+ else{
+ DBG (10, "get_pixelsize: error reading, status = %d w:%d h:%d\n",
+ ret, get_R_PSIZE_width(in), get_R_PSIZE_length(in));
+ ret = SANE_STATUS_INVAL;
+ usleep(1000000);
+ }
+ }
+ DBG (10, "get_pixelsize: finish\n");
+
+ return ret;
+}
+
+/*
* @@ Section 4 - SANE scanning functions
*/
/*
@@ -3783,7 +4011,7 @@ send_panel(struct scanner *s)
* completion of that request. Outside of that window, the returned
* values are best-effort estimates of what the parameters will be
* when sane_start() gets invoked.
- *
+ *
* Calling this function before a scan has actually started allows,
* for example, to get an estimate of how big the scanned image will
* be. The parameters passed to this function are the handle h of the
@@ -3795,7 +4023,7 @@ sane_get_parameters (SANE_Handle handle, SANE_Parameters * params)
{
SANE_Status ret = SANE_STATUS_GOOD;
struct scanner *s = (struct scanner *) handle;
-
+
DBG (10, "sane_get_parameters: start\n");
if(!s->started){
@@ -3825,14 +4053,14 @@ sane_get_parameters (SANE_Handle handle, SANE_Parameters * params)
DBG(15,"sane_get_parameters: area: tlx=%d, brx=%d, tly=%d, bry=%d\n",
s->i.tl_x, s->i.br_x, s->i.tl_y, s->i.br_y);
- DBG (15, "sane_get_parameters: params: ppl=%d, Bpl=%d, lines=%d\n",
+ DBG (15, "sane_get_parameters: params: ppl=%d, Bpl=%d, lines=%d\n",
params->pixels_per_line, params->bytes_per_line, params->lines);
- DBG (15, "sane_get_parameters: params: format=%d, depth=%d, last=%d\n",
+ DBG (15, "sane_get_parameters: params: format=%d, depth=%d, last=%d\n",
params->format, params->depth, params->last_frame);
DBG (10, "sane_get_parameters: finish\n");
-
+
return ret;
}
@@ -3840,9 +4068,9 @@ SANE_Status
update_params(struct scanner *s, int calib)
{
SANE_Status ret = SANE_STATUS_GOOD;
-
+
DBG (10, "update_params: start\n");
-
+
s->u.width = (s->u.br_x - s->u.tl_x) * s->u.dpi_x / 1200;
s->u.height = (s->u.br_y - s->u.tl_y) * s->u.dpi_y / 1200;
@@ -3884,7 +4112,7 @@ update_params(struct scanner *s, int calib)
s->u.br_x, s->u.tl_x, s->u.dpi_x, s->u.br_y, s->u.tl_y, s->u.dpi_y);
/* some scanners are limited in their valid scan params
- * make a second version of the params struct, but
+ * make a second version of the params struct, but
* override the user's values with what the scanner can actually do */
memcpy(&s->s,&s->u,sizeof(struct img_params));
@@ -3971,7 +4199,7 @@ update_params(struct scanner *s, int calib)
/* round lines up to even number */
s->s.height += s->s.height % 2;
-
+
DBG (15, "update_params: scan params: w:%d h:%d m:%d f:%d b:%d\n",
s->s.width, s->s.height, s->s.mode, s->s.format, s->s.bpp);
DBG (15, "update_params: scan params: B:%d vB:%d vw:%d\n",
@@ -4011,12 +4239,12 @@ SANE_Status
update_i_params(struct scanner *s)
{
SANE_Status ret = SANE_STATUS_GOOD;
-
+
DBG (10, "update_i_params: start\n");
s->i.width = s->u.width;
s->i.Bpl = s->u.Bpl;
-
+
DBG (10, "update_i_params: finish\n");
return ret;
}
@@ -4105,6 +4333,16 @@ sane_start (SANE_Handle handle)
DBG (5, "sane_start: ERROR: cannot send panel\n");
}
+ /* we should really be updating s->s and s->i instead */
+ if(s->hwcrop){
+ s->u.br_x = s->max_x;
+ s->u.tl_x = 0;
+ s->u.br_y = s->max_y;
+ s->u.tl_y = 0;
+ s->u.page_x = s->max_x;
+ s->u.page_y = s->max_y;
+ }
+
/* load our own private copy of scan params */
ret = update_params(s,0);
if (ret != SANE_STATUS_GOOD) {
@@ -4140,6 +4378,12 @@ sane_start (SANE_Handle handle)
goto errors;
}
+ ret = ssm2_hw_enhancement(s);
+ if (ret != SANE_STATUS_GOOD) {
+ DBG (5, "sane_start: ERROR: cannot ssm2 hw enhancement\n");
+ goto errors;
+ }
+
/* clean scan params for new scan */
ret = clean_params(s);
if (ret != SANE_STATUS_GOOD) {
@@ -4169,7 +4413,7 @@ sane_start (SANE_Handle handle)
DBG (5, "sane_start: ERROR: cannot load page\n");
goto errors;
}
-
+
/* wait for scanner to finish load */
ret = wait_scanner (s);
if (ret != SANE_STATUS_GOOD) {
@@ -4185,6 +4429,12 @@ sane_start (SANE_Handle handle)
goto errors;
}
+ ret = get_pixelsize(s);
+ if (ret != SANE_STATUS_GOOD) {
+ DBG (5, "sane_start: ERROR: cannot get pixel size\n");
+ goto errors;
+ }
+
s->started = 1;
}
@@ -4235,7 +4485,7 @@ sane_start (SANE_Handle handle)
}
}
}
-
+
/* small, buffering scanners check for more pages by reading counter */
else{
ret = read_panel (s, OPT_COUNTER);
@@ -4251,6 +4501,12 @@ sane_start (SANE_Handle handle)
DBG (5, "sane_start: diff counter (%d/%d)\n",
s->prev_page,s->panel_counter);
}
+
+ ret = get_pixelsize(s);
+ if (ret != SANE_STATUS_GOOD) {
+ DBG (5, "sane_start: ERROR: cannot get pixel size\n");
+ goto errors;
+ }
}
}
@@ -4261,9 +4517,9 @@ sane_start (SANE_Handle handle)
DBG (15, "started=%d, side=%d, source=%d\n",
s->started, s->side, s->u.source);
- /* certain options require the entire image to
+ /* certain options require the entire image to
* be collected from the scanner before we can
- * tell the user the size of the image. the sane
+ * tell the user the size of the image. the sane
* API has no way to inform the frontend of this,
* so we block and buffer. yuck */
if(must_fully_buffer(s)){
@@ -4294,7 +4550,7 @@ sane_start (SANE_Handle handle)
}
if(s->swskip){
/* Skipping means throwing out this image.
- * Pretend the user read the whole thing
+ * Pretend the user read the whole thing
* and call sane_start again.
* This assumes we are running in batch mode. */
if(buffer_isblank(s,s->side)){
@@ -4349,7 +4605,7 @@ clean_params (struct scanner *s)
s->s.bytes_tot[0]=0;
s->s.bytes_tot[1]=0;
- /* store the number of front bytes */
+ /* store the number of front bytes */
if ( s->u.source != SOURCE_ADF_BACK && s->u.source != SOURCE_CARD_BACK )
s->u.bytes_tot[SIDE_FRONT] = s->u.Bpl * s->u.height;
@@ -4359,8 +4615,8 @@ clean_params (struct scanner *s)
if ( s->s.source != SOURCE_ADF_BACK && s->s.source != SOURCE_CARD_BACK )
s->s.bytes_tot[SIDE_FRONT] = s->s.Bpl * s->s.height;
- /* store the number of back bytes */
- if ( s->u.source == SOURCE_ADF_DUPLEX || s->u.source == SOURCE_ADF_BACK
+ /* store the number of back bytes */
+ if ( s->u.source == SOURCE_ADF_DUPLEX || s->u.source == SOURCE_ADF_BACK
|| s->u.source == SOURCE_CARD_DUPLEX || s->u.source == SOURCE_CARD_BACK )
s->u.bytes_tot[SIDE_BACK] = s->u.Bpl * s->u.height;
@@ -4421,14 +4677,14 @@ set_window (struct scanner *s)
{
SANE_Status ret = SANE_STATUS_GOOD;
- /* The command specifies the number of bytes in the data phase
- * the data phase has a header, followed by 1 window desc block
+ /* The command specifies the number of bytes in the data phase
+ * the data phase has a header, followed by 1 window desc block
* the header specifies the number of bytes in 1 window desc block
*/
unsigned char cmd[SET_WINDOW_len];
size_t cmdLen = SET_WINDOW_len;
-
+
unsigned char out[SW_header_len + SW_desc_len];
size_t outLen = SW_header_len + SW_desc_len;
@@ -4484,9 +4740,9 @@ set_window (struct scanner *s)
/*convert our common -127 to +127 range into HW's range
*FIXME: this code assumes hardware range of 0-255 */
set_WD_brightness (desc1, s->brightness+128);
-
+
set_WD_threshold (desc1, s->threshold);
-
+
/*convert our common -127 to +127 range into HW's range
*FIXME: this code assumes hardware range of 0-255 */
set_WD_contrast (desc1, s->contrast+128);
@@ -4593,7 +4849,7 @@ object_position (struct scanner *s, int i_load)
/*
* Issues SCAN command.
- *
+ *
* (This doesn't actually read anything, it just tells the scanner
* to start scanning.)
*/
@@ -4641,7 +4897,7 @@ start_scan (struct scanner *s, int type)
/*
* Called by SANE to read data.
- *
+ *
* From the SANE spec:
* This function is used to read image data from the device
* represented by handle h. Argument buf is a pointer to a memory
@@ -4649,7 +4905,7 @@ start_scan (struct scanner *s, int type)
* returned is stored in *len. A backend must set this to zero when
* the call fails (i.e., when a status other than SANE_STATUS_GOOD is
* returned).
- *
+ *
* When the call succeeds, the number of bytes returned can be
* anywhere in the range from 0 to maxlen bytes.
*/
@@ -4698,7 +4954,7 @@ sane_read (SANE_Handle handle, SANE_Byte * buf, SANE_Int max_len, SANE_Int * len
}
}
}
-
+
/* simplex or non-alternating duplex */
else{
if(!s->s.eof[s->side]){
@@ -4719,7 +4975,7 @@ sane_read (SANE_Handle handle, SANE_Byte * buf, SANE_Int max_len, SANE_Int * len
ret = read_from_buffer(s,buf,max_len,len,s->side);
if(ret)
goto errors;
-
+
ret = check_for_cancel(s);
s->reading = 0;
@@ -4813,13 +5069,13 @@ read_from_scanner(struct scanner *s, int side, int exact)
size_t i;
for(i=0;i<inLen;i++){
-
+
/* about to change stage */
if(s->jpeg_stage == JPEG_STAGE_NONE && in[i] == 0xff){
s->jpeg_ff_offset=0;
continue;
}
-
+
s->jpeg_ff_offset++;
/* last byte was an ff, this byte is SOF */
@@ -4827,7 +5083,7 @@ read_from_scanner(struct scanner *s, int side, int exact)
s->jpeg_stage = JPEG_STAGE_SOF;
continue;
}
-
+
if(s->jpeg_stage == JPEG_STAGE_SOF){
/* lines in start of frame, overwrite it */
@@ -4839,7 +5095,7 @@ read_from_scanner(struct scanner *s, int side, int exact)
in[i] = s->s.height & 0xff;
continue;
}
-
+
/* width in start of frame, overwrite it */
if(s->jpeg_ff_offset == 7){
in[i] = (s->s.width >> 8) & 0xff;
@@ -4883,7 +5139,7 @@ read_from_scanner(struct scanner *s, int side, int exact)
s->s.bytes_tot[side] = s->s.bytes_sent[side];
s->i.bytes_tot[side] = s->i.bytes_sent[side];
s->u.bytes_tot[side] = s->i.bytes_sent[side];
- }
+ }
/* this is non-jpeg data, fill remainder, change rx'd size */
else{
@@ -5025,7 +5281,7 @@ read_from_scanner_duplex(struct scanner *s,int exact)
return ret;
}
-/* these functions copy image data from input buffer to scanner struct
+/* these functions copy image data from input buffer to scanner struct
* descrambling it, and putting it in the right side buffer */
/* NOTE: they assume buffer is scanline aligned */
static SANE_Status
@@ -5051,7 +5307,7 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
s->s.bytes_sent[side] += len;
return ret;
}
-
+
DBG (15, "copy_simplex: per-line copy\n");
line = malloc(bwidth);
@@ -5061,7 +5317,7 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
for(i=0; i<len; i+=bwidth){
int lineNum = s->s.bytes_sent[side] / bwidth;
-
+
/*increment number of bytes rx'd from scanner*/
s->s.bytes_sent[side] += bwidth;
@@ -5075,9 +5331,9 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
line_next = 0;
if(s->s.format == SANE_FRAME_GRAY){
-
+
switch (s->gray_interlace[side]) {
-
+
/* one line has the following format: ggg...GGG
* where the 'capital' letters are the beginning of the line */
case GRAY_INTERLACE_gG:
@@ -5086,10 +5342,10 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
line[line_next++] = buf[i+j];
}
break;
-
+
case GRAY_INTERLACE_2510:
DBG (17, "copy_simplex: gray, 2510\n");
-
+
/* first read head (third byte of every three) */
for(j=bwidth-1;j>=0;j-=3){
line[line_next++] = buf[i+j];
@@ -5109,11 +5365,11 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
break;
}
}
-
+
else if (s->s.format == SANE_FRAME_RGB){
-
+
switch (inter) {
-
+
/* scanner returns color data as bgrbgr... */
case COLOR_INTERLACE_BGR:
DBG (17, "copy_simplex: color, BGR\n");
@@ -5123,7 +5379,7 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
line[line_next++] = buf[i+j*3];
}
break;
-
+
/* scanner returns color data as gbrgbr... */
case COLOR_INTERLACE_GBR:
DBG (17, "copy_simplex: color, GBR\n");
@@ -5133,7 +5389,7 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
line[line_next++] = buf[i+j*3+1];
}
break;
-
+
/* scanner returns color data as brgbrg... */
case COLOR_INTERLACE_BRG:
DBG (17, "copy_simplex: color, BRG\n");
@@ -5143,7 +5399,7 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
line[line_next++] = buf[i+j*3];
}
break;
-
+
/* one line has the following format: RRR...rrrGGG...gggBBB...bbb */
case COLOR_INTERLACE_RRGGBB:
DBG (17, "copy_simplex: color, RRGGBB\n");
@@ -5153,7 +5409,7 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
line[line_next++] = buf[i+2*pwidth+j];
}
break;
-
+
/* one line has the following format: rrr...RRRggg...GGGbbb...BBB
* where the 'capital' letters are the beginning of the line */
case COLOR_INTERLACE_rRgGbB:
@@ -5164,10 +5420,10 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
line[line_next++] = buf[i+2*pwidth+j];
}
break;
-
+
case COLOR_INTERLACE_2510:
DBG (17, "copy_simplex: color, 2510\n");
-
+
/* first read head (third byte of every three) */
for(j=t-1;j>=0;j-=3){
line[line_next++] = buf[i+j];
@@ -5193,7 +5449,7 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
break;
}
}
-
+
/* nothing sent above? just copy one line of the block */
/* used by uninterlaced gray/color */
if(!line_next){
@@ -5201,14 +5457,14 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
memcpy(line+line_next,buf+i,bwidth);
line_next = bwidth;
}
-
+
/* invert image if scanner needs it for this mode */
if(s->reverse_by_mode[s->s.mode]){
for(j=0; j<line_next; j++){
line[j] ^= 0xff;
}
}
-
+
/* apply calibration if we have it */
if(s->f_offset[side]){
DBG (17, "copy_simplex: apply offset\n");
@@ -5227,7 +5483,7 @@ copy_simplex(struct scanner *s, unsigned char * buf, int len, int side)
line[j] = curr;
}
}
-
+
/* apply brightness and contrast if hardware cannot do it */
if(s->sw_lut && (s->s.mode == MODE_COLOR || s->s.mode == MODE_GRAYSCALE)){
DBG (17, "copy_simplex: apply brightness/contrast\n");
@@ -5283,7 +5539,7 @@ copy_duplex(struct scanner *s, unsigned char * buf, int len)
DBG (10, "copy_duplex: 2510\n");
for(i=0; i<len; i+=dbwidth){
-
+
for(j=0;j<dbwidth;j+=6){
/* we are actually only partially descrambling,
@@ -5473,7 +5729,7 @@ copy_line(struct scanner *s, unsigned char * buff, int side)
line[i*3+2] = line[source+2];
}
}
-
+
/* scan is wider than user wanted, skip some pixels on left side */
if(s->i.width != s->s.width){
offset = ((s->valid_x-s->i.page_x) / 2 + s->i.tl_x) * s->i.dpi_x/1200;
@@ -5481,12 +5737,12 @@ copy_line(struct scanner *s, unsigned char * buff, int side)
/* change mode, store line in buffer */
switch (s->i.mode) {
-
+
case MODE_COLOR:
memcpy(s->buffers[side]+s->i.bytes_sent[side], line+(offset*3), ibwidth);
s->i.bytes_sent[side] += ibwidth;
break;
-
+
case MODE_GRAYSCALE:
for(i=0;i<ibwidth;i++){
int source = (offset+i)*3;
@@ -5494,7 +5750,7 @@ copy_line(struct scanner *s, unsigned char * buff, int side)
= ((int)line[source] + line[source+1] + line[source+2])/3;
}
break;
-
+
default:
/*loop over output bytes*/
for(i=0;i<ibwidth;i++){
@@ -5506,7 +5762,7 @@ copy_line(struct scanner *s, unsigned char * buff, int side)
for(j=0;j<8;j++){
int source = offset*3 + i*24 + j*3;
if( (line[source] + line[source+1] + line[source+2]) < thresh ){
- curr |= 1 << (7-j);
+ curr |= 1 << (7-j);
}
}
@@ -5535,15 +5791,15 @@ read_from_buffer(struct scanner *s, SANE_Byte * buf, SANE_Int max_len,
/* figure out the max amount to transfer */
if(bytes > remain)
bytes = remain;
-
+
*len = bytes;
-
+
/*FIXME this needs to timeout eventually */
if(!bytes){
DBG(5,"read_from_buffer: nothing to do\n");
return SANE_STATUS_GOOD;
}
-
+
DBG(15, "read_from_buffer: si:%d to:%d tx:%d bu:%d pa:%d\n", side,
s->i.bytes_tot[side], s->u.bytes_sent[side], max_len, bytes);
@@ -5701,7 +5957,7 @@ calibrate_AFE (struct scanner *s)
DBG (5, "calibrate_AFE: ERROR: cannot set window\n");
goto cleanup;
}
-
+
/* first pass (black offset), lamp off, no offset/gain/exposure */
DBG (15, "calibrate_AFE: offset\n");
@@ -5925,7 +6181,7 @@ calibrate_fine_buffer (struct scanner *s)
DBG (5, "calibrate_fine_buffer: ERROR: cannot load offset buffers\n");
goto cleanup;
}
-
+
DBG (5, "calibrate_fine_buffer: %d %x\n", s->s.dpi_x/10, s->s.dpi_x/10);
memset(cmd,0,cmdLen);
@@ -5952,13 +6208,13 @@ calibrate_fine_buffer (struct scanner *s)
/*color mode, expand offset across all three channels? */
if(s->s.format == SANE_FRAME_RGB){
for(j=0; j<s->s.valid_width; j++){
-
- /*red*/
+
+ /*red*/
s->f_offset[i][j*3] = in[j*2+i];
if(s->f_offset[i][j*3] < 1)
s->f_offset[i][j*3] = 1;
- /*green and blue, same as red*/
+ /*green and blue, same as red*/
s->f_offset[i][j*3+1] = s->f_offset[i][j*3+2] = s->f_offset[i][j*3];
}
}
@@ -5995,10 +6251,10 @@ calibrate_fine_buffer (struct scanner *s)
int codes[] = {R_FINE_uid_red,R_FINE_uid_green,R_FINE_uid_blue};
for(k=0;k<3;k++){
-
+
set_R_xfer_uid (cmd, codes[k]);
inLen = reqLen;
-
+
hexdump(15, "cmd:", cmd, cmdLen);
ret = do_cmd (
@@ -6009,12 +6265,12 @@ calibrate_fine_buffer (struct scanner *s)
);
if (ret != SANE_STATUS_GOOD)
goto cleanup;
-
+
for(i=0;i<2;i++){
for(j=0; j<s->s.valid_width; j++){
-
+
s->f_gain[i][j*3+k] = in[j*2+i]*3/4;
-
+
if(s->f_gain[i][j*3+k] < 1)
s->f_gain[i][j*3+k] = 1;
}
@@ -6027,7 +6283,7 @@ calibrate_fine_buffer (struct scanner *s)
set_R_xfer_uid (cmd, R_FINE_uid_gray);
inLen = reqLen;
-
+
hexdump(15, "cmd:", cmd, cmdLen);
ret = do_cmd (
@@ -6038,12 +6294,12 @@ calibrate_fine_buffer (struct scanner *s)
);
if (ret != SANE_STATUS_GOOD)
goto cleanup;
-
+
for(i=0;i<2;i++){
for(j=0; j<s->s.valid_width; j++){
-
+
s->f_gain[i][j] = in[j*2+i]*3/4;
-
+
if(s->f_gain[i][j] < 1)
s->f_gain[i][j] = 1;
}
@@ -6127,7 +6383,7 @@ calibrate_fine (struct scanner *s)
DBG (5, "calibrate_fine: ERROR: cannot load buffers\n");
goto cleanup;
}
-
+
/*blast the existing fine cal data so reading code wont apply it*/
ret = offset_buffers(s,0);
ret = gain_buffers(s,0);
@@ -6138,14 +6394,14 @@ calibrate_fine (struct scanner *s)
DBG (5, "calibrate_fine: ERROR: cannot ssm buffer\n");
goto cleanup;
}
-
+
/* set window command */
ret = set_window(s);
if (ret != SANE_STATUS_GOOD) {
DBG (5, "calibrate_fine: ERROR: cannot set window\n");
goto cleanup;
}
-
+
/*handle fifth pass (fine offset), lamp off*/
DBG (15, "calibrate_fine: offset\n");
ret = calibration_scan(s,0xff);
@@ -6159,7 +6415,7 @@ calibrate_fine (struct scanner *s)
DBG (5, "calibrate_fine: ERROR: cannot load offset buffers\n");
goto cleanup;
}
-
+
for(i=0;i<2;i++){
for(j=0; j<s->s.valid_Bpl; j++){
min = 0;
@@ -6184,7 +6440,7 @@ calibrate_fine (struct scanner *s)
DBG (5, "calibrate_fine: ERROR: cannot load gain buffers\n");
goto cleanup;
}
-
+
for(i=0;i<2;i++){
for(j=0; j<s->s.valid_Bpl; j++){
max = 0;
@@ -6231,14 +6487,14 @@ calibration_scan (struct scanner *s, int scan)
DBG (5, "calibration_scan: ERROR: cannot clean_params\n");
return ret;
}
-
+
/* start scanning */
ret = start_scan (s,scan);
if (ret != SANE_STATUS_GOOD) {
DBG (5, "calibration_scan: ERROR: cannot start_scan\n");
return ret;
}
-
+
while(!s->s.eof[SIDE_FRONT] && !s->s.eof[SIDE_BACK]){
ret = read_from_scanner_duplex(s,1);
}
@@ -6260,7 +6516,7 @@ write_AFE(struct scanner *s)
size_t cmdLen = COR_CAL_len;
/*use the longest payload for buffer*/
- unsigned char pay[CC3_pay_len];
+ unsigned char pay[CC3_pay_len];
size_t payLen = CC3_pay_len;
DBG (10, "write_AFE: start\n");
@@ -6272,7 +6528,7 @@ write_AFE(struct scanner *s)
set_SCSI_opcode(cmd, COR_CAL_code);
set_CC_version(cmd,CC3_pay_ver);
set_CC_xferlen(cmd,payLen);
-
+
memset(pay,0,payLen);
set_CC3_gain_f_r(pay,s->c_gain[SIDE_FRONT]);
@@ -6282,7 +6538,7 @@ write_AFE(struct scanner *s)
set_CC3_off_f_r(pay,s->c_offset[SIDE_FRONT]);
set_CC3_off_f_g(pay,s->c_offset[SIDE_FRONT]);
set_CC3_off_f_b(pay,s->c_offset[SIDE_FRONT]);
-
+
set_CC3_exp_f_r(pay,s->c_exposure[SIDE_FRONT][CHAN_RED]);
set_CC3_exp_f_g(pay,s->c_exposure[SIDE_FRONT][CHAN_GREEN]);
set_CC3_exp_f_b(pay,s->c_exposure[SIDE_FRONT][CHAN_BLUE]);
@@ -6307,7 +6563,7 @@ write_AFE(struct scanner *s)
set_SCSI_opcode(cmd, COR_CAL_code);
set_CC_version(cmd,CC_pay_ver);
set_CC_xferlen(cmd,payLen);
-
+
memset(pay,0,payLen);
set_CC_f_gain(pay,s->c_gain[SIDE_FRONT]);
set_CC_unk1(pay,1);
@@ -6319,7 +6575,7 @@ write_AFE(struct scanner *s)
set_CC_exp_f_r2(pay,s->c_exposure[SIDE_FRONT][CHAN_RED]);
set_CC_exp_f_g2(pay,s->c_exposure[SIDE_FRONT][CHAN_GREEN]);
set_CC_exp_f_b2(pay,s->c_exposure[SIDE_FRONT][CHAN_BLUE]);
-
+
set_CC_b_gain(pay,s->c_gain[SIDE_BACK]);
set_CC_b_offset(pay,s->c_offset[SIDE_BACK]);
set_CC_exp_b_r1(pay,s->c_exposure[SIDE_BACK][CHAN_RED]);
@@ -6414,26 +6670,26 @@ gain_buffers (struct scanner *s, int setup)
* @@ Section 6 - SANE cleanup functions
*/
/*
- * Cancels a scan.
+ * Cancels a scan.
*
* It has been said on the mailing list that sane_cancel is a bit of a
* misnomer because it is routinely called to signal the end of a
* batch - quoting David Mosberger-Tang:
- *
+ *
* > In other words, the idea is to have sane_start() be called, and
* > collect as many images as the frontend wants (which could in turn
* > consist of multiple frames each as indicated by frame-type) and
- * > when the frontend is done, it should call sane_cancel().
+ * > when the frontend is done, it should call sane_cancel().
* > Sometimes it's better to think of sane_cancel() as "sane_stop()"
* > but that name would have had some misleading connotations as
* > well, that's why we stuck with "cancel".
- *
+ *
* The current consensus regarding duplex and ADF scans seems to be
* the following call sequence: sane_start; sane_read (repeat until
* EOF); sane_start; sane_read... and then call sane_cancel if the
* batch is at an end. I.e. do not call sane_cancel during the run but
* as soon as you get a SANE_STATUS_NO_DOCS.
- *
+ *
* From the SANE spec:
* This function is used to immediately or as quickly as possible
* cancel the currently pending operation of the device represented by
@@ -6478,13 +6734,13 @@ check_for_cancel(struct scanner *s)
if(s->started && s->cancelled){
unsigned char cmd[CANCEL_len];
size_t cmdLen = CANCEL_len;
-
+
DBG (15, "check_for_cancel: cancelling\n");
-
+
/* cancel scan */
memset(cmd,0,cmdLen);
set_SCSI_opcode(cmd, CANCEL_code);
-
+
ret = do_cmd (
s, 1, 0,
cmd, cmdLen,
@@ -6494,7 +6750,7 @@ check_for_cancel(struct scanner *s)
if(ret){
DBG (5, "check_for_cancel: ignoring bad cancel: %d\n",ret);
}
-
+
ret = object_position(s,SANE_FALSE);
if(ret){
DBG (5, "check_for_cancel: ignoring bad eject: %d\n",ret);
@@ -6516,7 +6772,7 @@ check_for_cancel(struct scanner *s)
/*
* Ends use of the scanner.
- *
+ *
* From the SANE spec:
* This function terminates the association between the device handle
* passed in argument h and the device it represents. If the device is
@@ -6560,7 +6816,7 @@ disconnect_fd (struct scanner *s)
/*
* Terminates the backend.
- *
+ *
* From the SANE spec:
* This function must be called to terminate use of a backend. The
* function will first close all device handles that still might be
@@ -6983,19 +7239,19 @@ do_usb_cmd(struct scanner *s, int runRS, int shortTime,
DBG(5,"cmd: no mem\n");
return SANE_STATUS_NO_MEM;
}
-
+
/* build a USB packet around the SCSI command */
cmdBuffer[3] = cmdLength-4;
cmdBuffer[5] = 1;
cmdBuffer[6] = 0x90;
memcpy(cmdBuffer+cmdOffset,cmdBuff,cmdLen);
-
+
/* write the command out */
DBG(25, "cmd: writing %d bytes, timeout %d\n", (int)cmdLength, cmdTimeout);
hexdump(30, "cmd: >>", cmdBuffer, cmdLength);
ret = sanei_usb_write_bulk(s->fd, cmdBuffer, &cmdActual);
DBG(25, "cmd: wrote %d bytes, retVal %d\n", (int)cmdActual, ret);
-
+
if(cmdLength != cmdActual){
DBG(5,"cmd: wrong size %d/%d\n", (int)cmdLength, (int)cmdActual);
free(cmdBuffer);
@@ -7043,19 +7299,19 @@ do_usb_cmd(struct scanner *s, int runRS, int shortTime,
DBG(5,"out: no mem\n");
return SANE_STATUS_NO_MEM;
}
-
+
/* build a USB packet around the SCSI command */
outBuffer[3] = outLength-4;
outBuffer[5] = 2;
outBuffer[6] = 0xb0;
memcpy(outBuffer+outOffset,outBuff,outLen);
-
+
/* write the command out */
DBG(25, "out: writing %d bytes, timeout %d\n", (int)outLength, outTimeout);
hexdump(30, "out: >>", outBuffer, outLength);
ret = sanei_usb_write_bulk(s->fd, outBuffer, &outActual);
DBG(25, "out: wrote %d bytes, retVal %d\n", (int)outActual, ret);
-
+
if(outLength != outActual){
DBG(5,"out: wrong size %d/%d\n", (int)outLength, (int)outActual);
free(outBuffer);
@@ -7102,7 +7358,7 @@ do_usb_cmd(struct scanner *s, int runRS, int shortTime,
DBG(5,"in: no mem\n");
return SANE_STATUS_NO_MEM;
}
-
+
DBG(25, "in: reading %d bytes, timeout %d\n", (int)inActual, inTimeout);
ret = sanei_usb_read_bulk(s->fd, inBuffer, &inActual);
DBG(25, "in: read %d bytes, retval %d\n", (int)inActual, ret);
@@ -7161,11 +7417,11 @@ do_usb_cmd(struct scanner *s, int runRS, int shortTime,
ret = SANE_STATUS_EOF;
DBG(5,"in: short read, %d/%d\n", (int)inLength,(int)inActual);
}
-
+
/* ignore the USB packet around the SCSI command */
*inLen = inActual - inOffset;
memcpy(inBuff,inBuffer+inOffset,*inLen);
-
+
free(inBuffer);
}
@@ -7214,12 +7470,12 @@ do_usb_status(struct scanner *s, int runRS, int shortTime, size_t * extraLength)
DBG(5,"stat: no mem\n");
return SANE_STATUS_NO_MEM;
}
-
+
DBG(25, "stat: reading %d bytes, timeout %d\n", (int)statLength, statTimeout);
ret = sanei_usb_read_bulk(s->fd, statBuffer, &statActual);
DBG(25, "stat: read %d bytes, retval %d\n", (int)statActual, ret);
hexdump(30, "stat: <<", statBuffer, statActual);
-
+
/*weird status*/
if(ret != SANE_STATUS_GOOD){
DBG(5,"stat: clearing error '%s'\n",sane_strstatus(ret));
@@ -7232,7 +7488,7 @@ do_usb_status(struct scanner *s, int runRS, int shortTime, size_t * extraLength)
}
/*inspect the status byte of the response*/
else if(statBuffer[statOffset]){
- DBG(5,"stat: status %d\n",statBuffer[statLength-1-4]);
+ DBG(5,"stat: status %d\n",statBuffer[statOffset]);
ret = do_usb_clear(s,0,runRS);
}
@@ -7286,7 +7542,7 @@ do_usb_clear(struct scanner *s, int clear, int runRS)
rs_in, &rs_inLen
);
DBG(25,"rs sub call <<\n");
-
+
if(ret2 == SANE_STATUS_EOF){
DBG(5,"rs: got EOF, returning IO_ERROR\n");
return SANE_STATUS_IO_ERROR;
@@ -7309,7 +7565,7 @@ do_usb_clear(struct scanner *s, int clear, int runRS)
}
static SANE_Status
-wait_scanner(struct scanner *s)
+wait_scanner(struct scanner *s)
{
SANE_Status ret = SANE_STATUS_GOOD;
@@ -7360,11 +7616,11 @@ wait_scanner(struct scanner *s)
/* Some scanners have per-resolution
* color interlacing values, but most
- * don't. This helper can tell the
+ * don't. This helper can tell the
* difference.
*/
static int
-get_color_inter(struct scanner *s, int side, int res)
+get_color_inter(struct scanner *s, int side, int res)
{
int i;
for(i=0;i<DPI_1200;i++){
@@ -7384,7 +7640,7 @@ get_color_inter(struct scanner *s, int side, int res)
* due to using FB or overscan.
*/
static int
-get_page_width(struct scanner *s)
+get_page_width(struct scanner *s)
{
int width = s->u.page_x;
@@ -7408,7 +7664,7 @@ get_page_width(struct scanner *s)
* due to using FB or overscan.
*/
static int
-get_page_height(struct scanner *s)
+get_page_height(struct scanner *s)
{
int height = s->u.page_y;
@@ -7600,7 +7856,7 @@ buffer_crop(struct scanner *s, int side)
/* if we will later binarize this image, make sure the width
* is a multiple of 8 pixels, by adjusting the right side */
- if ( must_downsample(s) && s->u.mode < MODE_GRAYSCALE ){
+ if ( must_downsample(s) && s->u.mode < MODE_GRAYSCALE ){
s->crop_vals[3] -= (s->crop_vals[3]-s->crop_vals[2]) % 8;
}
@@ -7618,13 +7874,13 @@ buffer_crop(struct scanner *s, int side)
s->i.width = s->s_params.pixels_per_line;
s->i.height = s->s_params.lines;
s->i.Bpl = s->s_params.bytes_per_line;
-
+
/* update image size counter to new, smaller size */
s->i.bytes_tot[side] = s->s_params.lines * s->s_params.bytes_per_line;
s->i.bytes_sent[side] = s->i.bytes_tot[side];
s->u.bytes_sent[side] = 0;
-
- cleanup:
+
+ cleanup:
DBG (10, "buffer_crop: finish\n");
return ret;
}
@@ -7679,7 +7935,7 @@ buffer_isblank(struct scanner *s, int side)
return status;
}
-/* certain options require the entire image to
+/* certain options require the entire image to
* be collected from the scanner before we can
* tell the user the size of the image. */
static int
@@ -7696,7 +7952,7 @@ must_fully_buffer(struct scanner *s)
return 0;
}
-/* certain scanners require the mode of the
+/* certain scanners require the mode of the
* image to be changed in software. */
static int
must_downsample(struct scanner *s)
@@ -7714,7 +7970,7 @@ must_downsample(struct scanner *s)
used by scanners to implement brightness/contrast/gamma
or by backends to speed binarization/thresholding
- offset and slope inputs are -127 to +127
+ offset and slope inputs are -127 to +127
slope rotates line around central input/output val,
0 makes horizontal line
@@ -7730,9 +7986,9 @@ must_downsample(struct scanner *s)
offset moves line vertically, and clamps to output range
0 keeps the line crossing the center of the table
- pos zero neg
+ pos zero neg
. xxxxxxxx . xx .
- . x . x .
+ . x . x .
out x . x . x
. . x . x
............ xx.......... xxxxxxxx....
@@ -7761,7 +8017,7 @@ load_lut (unsigned char * lut,
* first [-127,127] to [-.999,.999]
* then to [-PI/4,PI/4] then [0,PI/2]
* then take the tangent (T.O.A)
- * then multiply by the normal linear slope
+ * then multiply by the normal linear slope
* because the table may not be square, i.e. 1024x256*/
rise = tan((double)slope/128 * M_PI_4 + M_PI_4) * max_out_val / max_in_val;
@@ -7793,4 +8049,3 @@ load_lut (unsigned char * lut,
DBG (10, "load_lut: finish\n");
return ret;
}
-