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-rw-r--r--backend/fujitsu.c102
1 files changed, 46 insertions, 56 deletions
diff --git a/backend/fujitsu.c b/backend/fujitsu.c
index d24975e..6c1c8f6 100644
--- a/backend/fujitsu.c
+++ b/backend/fujitsu.c
@@ -30,9 +30,7 @@
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.
+ along with this program. If not, see <https://www.gnu.org/licenses/>.
As a special exception, the authors of SANE give permission for
additional uses of the libraries contained in this release of SANE.
@@ -172,11 +170,11 @@
- use sanei_scsi_open_extended() to set buffer size
- fix some compiler warns: 32&64 bit gcc
v26 2006-05-23, MAN
- - dont send scanner control (F1) if unsupported
+ - don't send scanner control (F1) if unsupported
v27 2006-05-30, MAN
- speed up hexdump (adeuring A T gmx D O T net)
- duplex request same size block from both sides
- - dont #include or call sanei_thread
+ - don't #include or call sanei_thread
- split usb/scsi command DBG into 25 and 30
v28 2006-06-01, MAN
- sane_read() usleep if scanner is busy
@@ -201,10 +199,10 @@
- add error msg if VPD missing or non-extended
- remove references to color_lineart and ht units
- rework init_model to support more known models
- - dont send paper size data if using flatbed
+ - don't send paper size data if using flatbed
v31 2006-06-13, MAN
- add 5220C usb id
- - dont show ink level buttons if no imprinter
+ - don't show ink level buttons if no imprinter
- run ghs/rs every second instead of every other
v32 2006-06-14, MAN
- add 4220C2 usb id
@@ -299,7 +297,7 @@
- proper async sane_cancel support
- re-enable JPEG support
- replace s->img_count with s->side
- - sane_get_parameters(): dont round up larger than current paper size
+ - sane_get_parameters(): don't round up larger than current paper size
- sane_start() rewritten, shorter, more clear
- return values are SANE_Status, not int
- hide unused functions
@@ -386,7 +384,7 @@
- set SANE_CAP_INACTIVE on all disabled options
- fix bug in mode_select page for sleep timer
v78 2008-08-26, MAN
- - recent model names (fi-6xxx) dont end in 'C'
+ - recent model names (fi-6xxx) don't end in 'C'
- simplify flatbed area overrides
- call scanner_control to change source during sane_start
v79 2008-10-01, MAN
@@ -423,7 +421,7 @@
- track frontend reading sensor/button values to reload
- deactivate double feed options if df-action == default
v88 2009-01-21, MAN
- - dont export private symbols
+ - don't export private symbols
v89 2009-02-20, MAN
- fi-4750 returns random garbage to serial number queries
v90 2009-02-23, MAN
@@ -482,7 +480,7 @@
- cache software crop/deskew parameters for use on backside of duplex
- fi-6110 does not support bgcolor or prepick
v106 2011-01-30, MAN (SANE 1.0.22)
- - dont call mode_select with a page code the scanner does not support
+ - don't call mode_select with a page code the scanner does not support
v107 2011-11-03, MAN
- M3091 does not support scanner_control(adf)
- Correct buffer overflow in read_from_3091duplex()
@@ -609,6 +607,10 @@
- add support for fi-800R
- add support for card scanning slot (Return Path)
- fix bug with reading hardware sensors on first invocation
+ v137 2020-09-23, MAN
+ - fix JPEG duplex memory corruption
+ - change window_gamma init (fixes bright/contrast for iX1500)
+ - only call send_lut after set_window (remove late_lut)
SANE FLOW DIAGRAM
@@ -658,7 +660,7 @@
#include "fujitsu.h"
#define DEBUG 1
-#define BUILD 136
+#define BUILD 137
/* values for SANE_DEBUG_FUJITSU env var:
- errors 5
@@ -1217,7 +1219,7 @@ init_inquire (struct fujitsu *s)
s->color_raster_offset = get_IN_color_offset(in);
DBG (15, " color offset: %d lines\n",s->color_raster_offset);
- /* FIXME: we dont store all of these? */
+ /* FIXME: we don't store all of these? */
DBG (15, " long gray scan: %d\n",get_IN_long_gray(in));
DBG (15, " long color scan: %d\n",get_IN_long_color(in));
@@ -1701,7 +1703,7 @@ init_vpd (struct fujitsu *s)
s->has_comp_JPG3 = get_IN_compression_JPG_INDEP (in);
DBG (15, " compression JPG3: %d\n", s->has_comp_JPG3);
- /* FIXME: we dont store these? */
+ /* FIXME: we don't store these? */
DBG (15, " back endorser mech: %d\n", get_IN_endorser_b_mech(in));
DBG (15, " back endorser stamp: %d\n", get_IN_endorser_b_stamp(in));
DBG (15, " back endorser elec: %d\n", get_IN_endorser_b_elec(in));
@@ -2105,11 +2107,9 @@ init_model (struct fujitsu *s)
s->ppl_mod_by_mode[MODE_GRAYSCALE] = 1;
s->ppl_mod_by_mode[MODE_COLOR] = 1;
- /* if scanner has built-in gamma tables, we use the first one (0) */
- /* otherwise, we use the first downloaded one (0x80) */
- /* note that you may NOT need to send the table to use it, */
- /* the scanner will fall back to the brightness/contrast LUT */
- if (!s->num_internal_gamma && s->num_download_gamma){
+ /* we prefer to use the downloaded (LUT) gamma table (0x80) if possible.
+ * but if scanner has only built-in gamma tables, we use the first one (0) */
+ if (s->num_download_gamma){
s->window_gamma = 0x80;
}
@@ -2365,7 +2365,6 @@ init_model (struct fujitsu *s)
/* weirdness */
s->need_q_table = 1;
- s->late_lut = 1;
s->need_diag_preread = 1;
s->ppl_mod_by_mode[MODE_COLOR] = 2;
s->hopper_before_op = 1;
@@ -2378,7 +2377,7 @@ init_model (struct fujitsu *s)
s->can_mode[MODE_LINEART] = 2;
s->can_mode[MODE_GRAYSCALE] = 2;
- /* dont bother with this one */
+ /* don't bother with this one */
s->can_mode[MODE_HALFTONE] = 0;
}
@@ -2389,7 +2388,6 @@ init_model (struct fujitsu *s)
/* weirdness */
s->need_q_table = 1;
- s->late_lut = 1;
s->need_diag_preread = 1;
s->ppl_mod_by_mode[MODE_COLOR] = 2;
s->hopper_before_op = 1;
@@ -2398,7 +2396,7 @@ init_model (struct fujitsu *s)
/* lies */
s->adbits = 8;
- /* dont bother with this one */
+ /* don't bother with this one */
s->can_mode[MODE_HALFTONE] = 0;
}
@@ -4202,7 +4200,7 @@ sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
opt->unit = SANE_UNIT_NONE;
opt->size = sizeof(SANE_Word);
- /*old type cant do this?*/
+ /*old type can't do this?*/
if ((s->has_endorser_f && s->endorser_type_f != ET_OLD)
|| (s->has_endorser_b && s->endorser_type_b != ET_OLD)){
opt->cap=SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT | SANE_CAP_ADVANCED;
@@ -5336,7 +5334,7 @@ sane_control_option (SANE_Handle handle, SANE_Int option,
DBG (20, "sane_control_option: set value for '%s' (%d)\n", s->opt[option].name,option);
if ( s->started ) {
- DBG (5, "sane_control_option: cant set, device busy\n");
+ DBG (5, "sane_control_option: can't set, device busy\n");
return SANE_STATUS_DEVICE_BUSY;
}
@@ -5351,7 +5349,7 @@ sane_control_option (SANE_Handle handle, SANE_Int option,
return status;
}
- /* may have been changed by constrain, so dont copy until now */
+ /* may have been changed by constrain, so don't copy until now */
val_c = *(SANE_Word *)val;
/*
@@ -6429,7 +6427,7 @@ diag_preread (struct fujitsu *s)
set_SD_preread_yres(out,s->resolution_y);
/* call helper function, scanner wants lies about paper width */
set_SD_preread_paper_width(out, get_page_width(s));
- /* dont call helper function, scanner wants actual length? */
+ /* don't call helper function, scanner wants actual length? */
set_SD_preread_paper_length(out, s->page_height);
set_SD_preread_composition(out, s->s_mode);
@@ -6789,7 +6787,7 @@ sane_get_parameters (SANE_Handle handle, SANE_Parameters * params)
params->pixels_per_line = s->u_params.pixels_per_line;
params->bytes_per_line = s->u_params.bytes_per_line;
- /* we wont know the end until we get to it */
+ /* we won't know the end until we get to it */
if(s->ald && !must_fully_buffer(s)){
DBG (15, "sane_get_parameters: hand-scanner mode\n");
params->lines = -1;
@@ -6941,7 +6939,7 @@ update_u_params (struct fujitsu * s)
*
* this will be called between sides of a duplex scan,
* and at the start of each page of an adf batch.
- * hence, we spend alot of time playing with s->started, etc.
+ * hence, we spend a lot of time playing with s->started, etc.
*/
SANE_Status
sane_start (SANE_Handle handle)
@@ -7050,14 +7048,6 @@ sane_start (SANE_Handle handle)
if (ret != SANE_STATUS_GOOD)
DBG (5, "sane_start: WARNING: cannot send_endorser %d\n", ret);
- /* send lut if scanner has no hardware brightness/contrast,
- * or we are going to ask it to use a downloaded gamma table */
- if (!s->late_lut && (!s->brightness_steps || !s->contrast_steps || s->window_gamma & 0x80)){
- ret = send_lut(s);
- if (ret != SANE_STATUS_GOOD)
- DBG (5, "sane_start: WARNING: cannot early send_lut %d\n", ret);
- }
-
/* set window command */
ret = set_window(s);
if (ret != SANE_STATUS_GOOD) {
@@ -7067,7 +7057,7 @@ sane_start (SANE_Handle handle)
/* send lut if scanner has no hardware brightness/contrast,
* or we are going to ask it to use a downloaded gamma table */
- if (s->late_lut && (!s->brightness_steps || !s->contrast_steps || s->window_gamma & 0x80)){
+ if (!s->brightness_steps || !s->contrast_steps || s->window_gamma & 0x80){
ret = send_lut(s);
if (ret != SANE_STATUS_GOOD)
DBG (5, "sane_start: WARNING: cannot late send_lut %d\n", ret);
@@ -7110,10 +7100,10 @@ sane_start (SANE_Handle handle)
}
/* set clean defaults with new sheet of paper */
- /* dont reset the transfer vars on backside of duplex page */
+ /* don't reset the transfer vars on backside of duplex page */
/* otherwise buffered back page will be lost */
/* ingest paper with adf (no-op for fb) */
- /* dont call object pos or scan on back side of duplex scan */
+ /* don't call object pos or scan on back side of duplex scan */
if(s->side == SIDE_FRONT || s->source == SOURCE_ADF_BACK || s->source == SOURCE_CARD_BACK){
s->bytes_rx[0]=0;
@@ -7187,7 +7177,7 @@ sane_start (SANE_Handle handle)
s->buff_tot[SIDE_BACK] = s->bytes_tot[SIDE_BACK];
/* the back buffer is normally very large, but some scanners or
- * option combinations dont need it, so we make a small one */
+ * option combinations don't need it, so we make a small one */
if(s->low_mem || s->source == SOURCE_ADF_BACK || s->source == SOURCE_CARD_BACK
|| s->duplex_interlace == DUPLEX_INTERLACE_NONE)
s->buff_tot[SIDE_BACK] = s->buffer_size;
@@ -7739,7 +7729,7 @@ set_window (struct fujitsu *s)
/* call helper function, scanner wants lies about paper width */
set_WD_paper_width_X (desc1, get_page_width(s));
- /* dont call helper function, scanner wants actual length? */
+ /* don't call helper function, scanner wants actual length? */
set_WD_paper_length_Y (desc1, s->page_height);
}
@@ -7974,7 +7964,7 @@ start_scan (struct fujitsu *s)
/* checks started and cancelled flags in scanner struct,
* sends cancel command to scanner if required. don't call
- * this function asyncronously, wait for pending operation */
+ * this function asynchronously, wait for pending operation */
static SANE_Status
check_for_cancel(struct fujitsu *s)
{
@@ -8166,7 +8156,7 @@ sane_read (SANE_Handle handle, SANE_Byte * buf, SANE_Int max_len, SANE_Int * len
return ret;
}
-/* bare jpeg images dont contain resolution, but JFIF APP0 does, so we add */
+/* bare jpeg images don't contain resolution, but JFIF APP0 does, so we add */
static SANE_Status
inject_jfif_header(struct fujitsu *s, int side)
{
@@ -8220,21 +8210,21 @@ read_from_JPEGduplex(struct fujitsu *s)
int avail = s->buff_tot[SIDE_FRONT] - s->buff_rx[SIDE_FRONT];
if(bytes > avail){
bytes = avail;
- /* leave space for JFIF header at start of image */
- if(s->bytes_rx[SIDE_FRONT] < 2)
- bytes -= JFIF_APP0_LENGTH;
}
}
if(!s->eof_rx[SIDE_BACK]){
int avail = s->buff_tot[SIDE_BACK] - s->buff_rx[SIDE_BACK];
if(bytes > avail){
bytes = avail;
- /* leave space for JFIF header at start of image */
- if(s->bytes_rx[SIDE_BACK] < 2)
- bytes -= JFIF_APP0_LENGTH;
}
}
+ /* leave space for JFIF header in the small front side buffer,
+ * if we are at the beginning of the image */
+ if(s->bytes_rx[SIDE_FRONT] < 3){
+ bytes -= JFIF_APP0_LENGTH;
+ }
+
DBG(15, "read_from_JPEGduplex: fto:%d frx:%d bto:%d brx:%d pa:%d\n",
s->bytes_tot[SIDE_FRONT], s->bytes_rx[SIDE_FRONT],
s->bytes_tot[SIDE_BACK], s->bytes_rx[SIDE_BACK],
@@ -8378,7 +8368,7 @@ read_from_JPEGduplex(struct fujitsu *s)
}
/* unknown, warn */
- else if(in[i] != 0xff){
+ else if(in[i] != 0x00){
DBG(15, "read_from_JPEGduplex: unknown %02x\n", in[i]);
}
}
@@ -8415,7 +8405,7 @@ read_from_JPEGduplex(struct fujitsu *s)
s->bytes_rx[SIDE_FRONT]++;
}
- /* image is interlaced afterall, continue */
+ /* image is interlaced after all, continue */
else{
DBG(15, "read_from_JPEGduplex: wrong width, req:%d got:%d\n",
s->s_params.pixels_per_line,width);
@@ -8484,7 +8474,7 @@ read_from_JPEGduplex(struct fujitsu *s)
free(in);
- /* jpeg uses in-band EOI marker, so this is ususally redundant */
+ /* jpeg uses in-band EOI marker, so this is usually redundant */
if(ret == SANE_STATUS_EOF){
DBG(15, "read_from_JPEGduplex: got EOF, finishing\n");
s->eof_rx[SIDE_FRONT] = 1;
@@ -9157,7 +9147,7 @@ downsample_from_buffer(struct fujitsu *s, SANE_Byte * buf,
* handle h is a valid handle) but usually affects long-running
* operations only (such as image is acquisition). It is safe to call
* this function asynchronously (e.g., from within a signal handler).
- * It is important to note that completion of this operaton does not
+ * It is important to note that completion of this operation does not
* imply that the currently pending operation has been cancelled. It
* only guarantees that cancellation has been initiated. Cancellation
* completes only when the cancelled call returns (typically with a
@@ -9963,7 +9953,7 @@ get_page_width(struct fujitsu *s)
return s->page_width;
}
- /* cant overscan larger than scanner max */
+ /* can't overscan larger than scanner max */
if(width > s->max_x){
return s->max_x;
}
@@ -9992,7 +9982,7 @@ get_page_height(struct fujitsu *s)
return s->page_height;
}
- /* cant overscan larger than scanner max */
+ /* can't overscan larger than scanner max */
if(height > s->max_y){
return s->max_y;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 05:32:39 +0000