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-rw-r--r--backend/epjitsu.c121
1 files changed, 65 insertions, 56 deletions
diff --git a/backend/epjitsu.c b/backend/epjitsu.c
index 6fda662..7430108 100644
--- a/backend/epjitsu.c
+++ b/backend/epjitsu.c
@@ -3,7 +3,7 @@
This file implements a SANE backend for the Fujitsu fi-60F, the
ScanSnap S300/S1300, and (hopefully) other Epson-based scanners.
- Copyright 2007-2015 by m. allan noah <kitno455 at gmail dot com>
+ Copyright 2007-2022 by m. allan noah <kitno455 at gmail dot com>
Copyright 2009 by Richard Goedeken <richard at fascinationsoftware dot com>
Development funded by Microdea, Inc., TrueCheck, Inc. and Archivista, GmbH
@@ -155,6 +155,10 @@
v31 2017-04-09, MAN
- hardware gray support for fi-60F/65F (disabled pending calibration)
- merge fi-60F/65F settings
+ v32 2022-11-15, MAN
+ - fix hanging scan when using source = ADF Back (fixes #601)
+ v33 2022-11-17, MAN
+ - S1300i: fix color plane offset at 225 and 330 dpi (fixes #538)
SANE FLOW DIAGRAM
@@ -203,8 +207,14 @@
#include "epjitsu-cmd.h"
#define DEBUG 1
-#define BUILD 31
+#define BUILD 33
+#ifndef MIN
+ #define MIN(a,b) ((a) < (b) ? (a) : (b))
+#endif
+#ifndef MAX
+ #define MAX(a,b) ((a) > (b) ? (a) : (b))
+#endif
#ifndef MAX3
#define MAX3(a,b,c) ((a) > (b) ? ((a) > (c) ? a : c) : ((b) > (c) ? b : c))
#endif
@@ -265,7 +275,7 @@ static struct scanner *scanner_devList = NULL;
SANE_Status
sane_init (SANE_Int * version_code, SANE_Auth_Callback authorize)
{
- authorize = authorize; /* get rid of compiler warning */
+ (void) authorize; /* get rid of compiler warning */
DBG_INIT ();
DBG (10, "sane_init: start\n");
@@ -317,7 +327,7 @@ sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
int num_devices=0;
int i=0;
- local_only = local_only; /* get rid of compiler warning */
+ (void) local_only; /* get rid of compiler warning */
DBG (10, "sane_get_devices: start\n");
@@ -1137,7 +1147,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
/* values stored in 1200 dpi units */
/* must be converted to MM for sane */
s->tl_x_range.min = SCANNER_UNIT_TO_FIXED_MM(0);
- s->tl_x_range.max = SCANNER_UNIT_TO_FIXED_MM(get_page_width(s)-s->min_x);
+ s->tl_x_range.max = SCANNER_UNIT_TO_FIXED_MM(MAX(0, get_page_width(s)-s->min_x));
s->tl_x_range.quant = MM_PER_UNIT_FIX;
opt->name = SANE_NAME_SCAN_TL_X;
@@ -1156,7 +1166,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
/* values stored in 1200 dpi units */
/* must be converted to MM for sane */
s->tl_y_range.min = SCANNER_UNIT_TO_FIXED_MM(0);
- s->tl_y_range.max = SCANNER_UNIT_TO_FIXED_MM(get_page_height(s)-s->min_y);
+ s->tl_y_range.max = SCANNER_UNIT_TO_FIXED_MM(MAX(0, get_page_height(s)-s->min_y));
s->tl_y_range.quant = MM_PER_UNIT_FIX;
opt->name = SANE_NAME_SCAN_TL_Y;
@@ -1174,7 +1184,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
/* values stored in 1200 dpi units */
/* must be converted to MM for sane */
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.max = SCANNER_UNIT_TO_FIXED_MM(MAX(s->min_x, get_page_width(s)));
s->br_x_range.quant = MM_PER_UNIT_FIX;
opt->name = SANE_NAME_SCAN_BR_X;
@@ -1193,7 +1203,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
/* values stored in 1200 dpi units */
/* must be converted to MM for sane */
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.max = SCANNER_UNIT_TO_FIXED_MM(MAX(s->min_y, get_page_height(s)));
s->br_y_range.quant = MM_PER_UNIT_FIX;
opt->name = SANE_NAME_SCAN_BR_Y;
@@ -2042,14 +2052,12 @@ change_params(struct scanner *s)
/* height */
if (s->tl_y > s->max_y - s->min_y)
s->tl_y = s->max_y - s->min_y - s->adf_height_padding;
- if (s->tl_y + s->page_height > s->max_y - s->adf_height_padding)
- s->page_height = s->max_y - s->adf_height_padding - s->tl_y;
- if (s->page_height < s->min_y && s->page_height > 0)
- s->page_height = s->min_y;
+ s->page_height = MIN(s->page_height, s->max_y - s->adf_height_padding - s->tl_y);
+ if (s->page_height > 0)
+ s->page_height = MAX(s->page_height, s->min_y);
if (s->tl_y + s->page_height > s->max_y)
s->tl_y = s->max_y - s->adf_height_padding - s->page_height;
- if (s->tl_y < 0)
- s->tl_y = 0;
+ s->tl_y = MAX(s->tl_y, 0);
if (s->page_height > 0) {
s->br_y = s->tl_y + s->page_height;
@@ -2059,10 +2067,9 @@ change_params(struct scanner *s)
}
/*width*/
- if (s->page_width > s->max_x)
- s->page_width = s->max_x;
- else if (s->page_width < s->min_x)
- s->page_width = s->min_x;
+ s->page_width = MIN(s->page_width, s->max_x);
+ s->page_width = MAX(s->page_width, s->min_x);
+
s->tl_x = (s->max_x - s->page_width)/2;
s->br_x = (s->max_x + s->page_width)/2;
@@ -2177,7 +2184,7 @@ change_params(struct scanner *s)
/* adf with specified paper size */
s->front.height = SCANNER_UNIT_TO_PIX(s->page_height, s->front.y_res);
}
- s->front.width_pix = s->block_img.width_pix;
+ s->front.width_pix = SCANNER_UNIT_TO_PIX(s->page_width, s->resolution * img_heads);
s->front.x_start_offset = (s->block_xfr.image->width_pix - s->front.width_pix)/2;
switch (s->mode) {
case MODE_COLOR:
@@ -2310,12 +2317,8 @@ load_lut (unsigned char * lut,
for(i=0;i<=max_in_val;i++){
j = rise*i + shift;
- if(j<out_min){
- j=out_min;
- }
- else if(j>out_max){
- j=out_max;
- }
+ j = MAX(j, out_min);
+ j = MIN(j, out_max);
*lut_p=j;
lut_p++;
@@ -2654,7 +2657,7 @@ coarsecal_send_cal(struct scanner *s, unsigned char *pay)
unsigned char stat[1];
size_t cmdLen,statLen,payLen;
- DBG (5, "coarsecal_send_cal: start\n");
+ DBG (10, "coarsecal_send_cal: start\n");
/* send coarse cal (c6) */
cmd[0] = 0x1b;
cmd[1] = 0xc6;
@@ -2697,7 +2700,7 @@ coarsecal_send_cal(struct scanner *s, unsigned char *pay)
return SANE_STATUS_IO_ERROR;
}
- DBG (5, "coarsecal_send_cal: finish\n");
+ DBG (10, "coarsecal_send_cal: finish\n");
return ret;
}
@@ -2709,7 +2712,7 @@ coarsecal_get_line(struct scanner *s, struct image *img)
unsigned char stat[1];
size_t cmdLen,statLen;
- DBG (5, "coarsecal_get_line: start\n");
+ DBG (10, "coarsecal_get_line: start\n");
/* send scan d2 command */
cmd[0] = 0x1b;
@@ -2746,7 +2749,7 @@ coarsecal_get_line(struct scanner *s, struct image *img)
/* convert the raw data into normal packed pixel data */
descramble_raw(s, &s->cal_image);
- DBG (5, "coarsecal_get_line: finish\n");
+ DBG (10, "coarsecal_get_line: finish\n");
return ret;
}
@@ -2758,7 +2761,7 @@ coarsecal_dark(struct scanner *s, unsigned char *pay)
int try_count, cal_good[2], x, j;
int param[2], zcount[2], high_param[2], low_param[2], avg[2], maxval[2];
- DBG (5, "coarsecal_dark: start\n");
+ DBG (10, "coarsecal_dark: start\n");
/* dark cal, lamp off */
ret = lamp(s,0);
@@ -2844,7 +2847,7 @@ coarsecal_dark(struct scanner *s, unsigned char *pay)
} /* continue looping for up to 8 tries */
- DBG (5, "coarsecal_dark: finish\n");
+ DBG (10, "coarsecal_dark: finish\n");
return ret;
}
@@ -2857,7 +2860,7 @@ coarsecal_light(struct scanner *s, unsigned char *pay)
int param[2], zcount[2], high_param[2], low_param[2], avg[2];
int rgb_avg[2][3], rgb_hicount[2][3];
- DBG (5, "coarsecal_light: start\n");
+ DBG (10, "coarsecal_light: start\n");
/* light cal, lamp on */
ret = lamp(s,1);
@@ -2961,7 +2964,7 @@ coarsecal_light(struct scanner *s, unsigned char *pay)
}
}
- DBG (5, "coarsecal_light: finish\n");
+ DBG (10, "coarsecal_light: finish\n");
return ret;
}
@@ -3023,6 +3026,8 @@ finecal_send_cal(struct scanner *s)
unsigned char *p_out, *p_in = s->sendcal.buffer;
int planes;
+ DBG (10, "finecal_send_cal: start\n");
+
if(s->model == MODEL_FI60F || s->model == MODEL_FI65F)
planes = 3;
if(s->model == MODEL_S300 || s->model == MODEL_S1300i)
@@ -3165,6 +3170,7 @@ finecal_send_cal(struct scanner *s)
return SANE_STATUS_IO_ERROR;
}
+ DBG (10, "finecal_send_cal: finish\n");
return ret;
}
@@ -3182,6 +3188,8 @@ finecal_get_line(struct scanner *s, struct image *img)
int round_offset = img->height / 2;
int i, j, k;
+ DBG (10, "finecal_get_line: start\n");
+
/* ask for 16 lines */
ret = set_window(s, WINDOW_FINECAL);
if(ret){
@@ -3238,6 +3246,8 @@ finecal_get_line(struct scanner *s, struct image *img)
avgpix[j] = (total + round_offset) / img->height;
}
}
+
+ DBG (10, "finecal_get_line: finish\n");
return ret;
}
@@ -3385,8 +3395,8 @@ finecal(struct scanner *s)
else
s->sendcal.buffer[idx * 2 + 1] = newgain;
/* update statistics */
- if (pixvalue < min_value[i][k]) min_value[i][k] = pixvalue;
- if (pixvalue > max_value[i][k]) max_value[i][k] = pixvalue;
+ min_value[i][k] = MIN(min_value[i][k], pixvalue);
+ max_value[i][k] = MAX(max_value[i][k], pixvalue);
avg_value[i][k] += pixerror;
variance[i][k] += (pixerror * pixerror);
idx++;
@@ -3658,13 +3668,8 @@ send_lut (struct scanner *s)
for(i=0;i<width;i++){
j=slope*i + offset + b;
- if(j<0){
- j=0;
- }
-
- if(j>(height-1)){
- j=height-1;
- }
+ j = MAX(j, 0);
+ j = MIN(j, height-1);
if (s->model == MODEL_S1100){
/*only one table, be order*/
@@ -4078,9 +4083,7 @@ sane_read (SANE_Handle handle, SANE_Byte * buf, SANE_Int max_len, SANE_Int * len
}
*len = page->bytes_scanned - page->bytes_read;
- if(*len > max_len){
- *len = max_len;
- }
+ *len = MIN(*len, max_len);
if(*len){
DBG (10, "sane_read: copy rx:%d tx:%d tot:%d len:%d\n",
@@ -4088,12 +4091,12 @@ sane_read (SANE_Handle handle, SANE_Byte * buf, SANE_Int max_len, SANE_Int * len
memcpy(buf, page->image->buffer + page->bytes_read, *len);
page->bytes_read += *len;
+ }
- /* sent it all, return eof on next read */
- if(page->bytes_read == page->bytes_scanned && s->fullscan.done){
- DBG (10, "sane_read: side done\n");
- page->done = 1;
- }
+ /* sent it all, return eof on next read */
+ if(page->bytes_read == page->bytes_scanned && s->fullscan.done){
+ DBG (10, "sane_read: side done\n");
+ page->done = 1;
}
DBG (10, "sane_read: finish si:%d len:%d max:%d\n",s->side,*len,max_len);
@@ -4161,6 +4164,7 @@ descramble_raw(struct scanner *s, struct transfer * tp)
for (j = 0; j < height; j++){ /* row (y)*/
int curr_col = 0;
int r=0, g=0, b=0, ppc=0;
+ int g_offset=0, b_offset=0;
for (k = 0; k <= tp->plane_width; k++){ /* column (x) */
int this_col = k*tp->image->x_res/tp->x_res;
@@ -4185,14 +4189,20 @@ descramble_raw(struct scanner *s, struct transfer * tp)
break;
}
+ /* if we're using an S1300i with scan resolution 225 or 300, on AC power, the color planes are shifted */
+ if(s->model == MODEL_S1300i && !s->usb_power && (tp->x_res == 225 || tp->x_res == 300) && tp != &s->cal_image && k + 2 <= tp->plane_width){
+ g_offset = 3;
+ b_offset = 6;
+ }
+
/*red is first*/
r += tp->raw_data[j*tp->line_stride + k*3 + i];
/*green is second*/
- g += tp->raw_data[j*tp->line_stride + tp->plane_stride + k*3 + i];
+ g += tp->raw_data[j*tp->line_stride + tp->plane_stride + k*3 + i + g_offset];
/*blue is third*/
- b += tp->raw_data[j*tp->line_stride + 2*tp->plane_stride + k*3 + i];
+ b += tp->raw_data[j*tp->line_stride + 2*tp->plane_stride + k*3 + i + b_offset];
ppc++;
}
@@ -4341,8 +4351,8 @@ read_from_scanner(struct scanner *s, struct transfer * tp)
size_t bufLen;
/* determine amount to ask for, S1300i wants big requests */
- if(bytes > remainBlock && s->model != MODEL_S1300i){
- bytes = remainBlock;
+ if(s->model != MODEL_S1300i){
+ bytes = MIN(bytes, remainBlock);
}
if (tp->image == NULL)
@@ -4932,8 +4942,7 @@ maxStringSize (const SANE_String_Const strings[])
for (i = 0; strings[i]; ++i) {
size = strlen (strings[i]) + 1;
- if (size > max_size)
- max_size = size;
+ max_size = MAX(max_size, size);
}
return max_size;
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 11:17:09 +0000