std::vector<display::mode> display::modes() const
{
std::vector<display::mode> result;
if (randr.is_available)
{
XRRScreenResources* sr = XRRGetScreenResources(g_display, g_root);
XRRCrtcInfo* ci = XRRGetCrtcInfo(g_display, sr, crtc);
XRROutputInfo* oi = XRRGetOutputInfo(g_display, sr, output);
for (int i = 0; i < oi->nmode; ++i)
{
XRRModeInfo const* mi = mode_info(sr, oi->modes[i]);
if (mi && !(mi->modeFlags & RR_Interlace))
{
result.emplace_back(make_mode(mi, ci));
}
}
XRRFreeOutputInfo(oi);
XRRFreeCrtcInfo(ci);
XRRFreeScreenResources(sr);
std::sort(result.begin(), result.end());
result.erase(std::unique(result.begin(), result.end()), result.end());
}
else
{
result.emplace_back(current_mode());
}
return result;
}
static int gdlm_lock(struct gfs2_glock *gl, unsigned int req_state,
unsigned int flags)
{
struct lm_lockstruct *ls = &gl->gl_sbd->sd_lockstruct;
int req;
u32 lkf;
char strname[GDLM_STRNAME_BYTES] = "";
req = make_mode(req_state);
lkf = make_flags(gl, flags, req);
gfs2_glstats_inc(gl, GFS2_LKS_DCOUNT);
gfs2_sbstats_inc(gl, GFS2_LKS_DCOUNT);
if (gl->gl_lksb.sb_lkid) {
gfs2_update_request_times(gl);
} else {
memset(strname, ' ', GDLM_STRNAME_BYTES - 1);
strname[GDLM_STRNAME_BYTES - 1] = '\0';
gfs2_reverse_hex(strname + 7, gl->gl_name.ln_type);
gfs2_reverse_hex(strname + 23, gl->gl_name.ln_number);
gl->gl_dstamp = ktime_get_real();
}
/*
* Submit the actual lock request.
*/
return dlm_lock(ls->ls_dlm, req, &gl->gl_lksb, lkf, strname,
GDLM_STRNAME_BYTES - 1, 0, gdlm_ast, gl, gdlm_bast);
}
SANE_Status
sane_get_parameters (SANE_Handle handle, SANE_Parameters *params)
{
Tamarack_Scanner *s = handle;
if (!s->scanning) {
double width, height, dpi;
memset (&s->params, 0, sizeof (s->params));
width = SANE_UNFIX (s->val[OPT_BR_X].w - s->val[OPT_TL_X].w);
height = SANE_UNFIX (s->val[OPT_BR_Y].w - s->val[OPT_TL_Y].w);
dpi = SANE_UNFIX (s->val[OPT_RESOLUTION].w);
s->mode = make_mode (s->val[OPT_MODE].s);
DBG(1, "got mode '%s' -> %d.\n", s->val[OPT_MODE].s, s->mode);
/* make best-effort guess at what parameters will look like once
scanning starts. */
if (dpi > 0.0 && width > 0.0 && height > 0.0) {
double dots_per_mm = dpi / MM_PER_INCH;
s->params.pixels_per_line = width * dots_per_mm;
s->params.lines = height * dots_per_mm;
}
if ((s->mode == THRESHOLDED) || (s->mode == DITHERED)) {
s->params.format = SANE_FRAME_GRAY;
s->params.bytes_per_line = (s->params.pixels_per_line + 7) / 8;
s->params.depth = 1;
} else if (s->mode == GREYSCALE) {
s->params.format = SANE_FRAME_GRAY;
s->params.bytes_per_line = s->params.pixels_per_line;
s->params.depth = 8;
} else {
s->params.format = SANE_FRAME_RED + s->pass;
s->params.bytes_per_line = s->params.pixels_per_line;
s->params.depth = 8;
}
s->pass = 0;
} else {
if (s->mode == TRUECOLOR)
s->params.format = SANE_FRAME_RED + s->pass;
}
s->params.last_frame = (s->mode != TRUECOLOR) || (s->pass == 2);
if (params)
*params = s->params;
DBG(1, "Got parameters: format:%d, ppl: %d, bpl:%d, depth:%d, "
"last %d pass %d\n",
s->params.format, s->params.pixels_per_line,
s->params.bytes_per_line, s->params.depth,
s->params.last_frame, s->pass);
return SANE_STATUS_GOOD;
}
static int gdlm_lock(struct gfs2_glock *gl, unsigned int req_state,
unsigned int flags)
{
struct lm_lockstruct *ls = &gl->gl_sbd->sd_lockstruct;
int req;
u32 lkf;
req = make_mode(req_state);
lkf = make_flags(gl->gl_lksb.sb_lkid, flags, req);
/*
* Submit the actual lock request.
*/
return dlm_lock(ls->ls_dlm, req, &gl->gl_lksb, lkf, gl->gl_strname,
GDLM_STRNAME_BYTES - 1, 0, gdlm_ast, gl, gdlm_bast);
}
display::mode display::current_mode() const
{
if (randr.is_available)
{
XRRScreenResources* sr = XRRGetScreenResources(g_display, g_root);
XRRCrtcInfo* ci = XRRGetCrtcInfo(g_display, sr, crtc);
XRRModeInfo const* mi = mode_info(sr, ci->mode);
display::mode const result = make_mode(mi, ci);
XRRFreeCrtcInfo(ci);
XRRFreeScreenResources(sr);
return result;
}
else
{
return display::mode(DisplayWidth(g_display, g_screen), DisplayHeight(g_display, g_screen),
DefaultDepth(g_display, g_screen), 0);
}
}
static unsigned int gdlm_lock(struct gfs2_glock *gl,
unsigned int req_state, unsigned int flags)
{
struct lm_lockstruct *ls = &gl->gl_sbd->sd_lockstruct;
int error;
int req;
u32 lkf;
gl->gl_req = req_state;
req = make_mode(req_state);
lkf = make_flags(gl->gl_lksb.sb_lkid, flags, req);
/*
* Submit the actual lock request.
*/
error = dlm_lock(ls->ls_dlm, req, &gl->gl_lksb, lkf, gl->gl_strname,
GDLM_STRNAME_BYTES - 1, 0, gdlm_ast, gl, gdlm_bast);
if (error == -EAGAIN)
return 0;
if (error)
return LM_OUT_ERROR;
return LM_OUT_ASYNC;
}
SANE_Status
sane_start (SANE_Handle handle)
{
Tamarack_Scanner *s = handle;
SANE_Status status;
int fds[2];
/* First make sure we have a current parameter set. Some of the
parameters will be overwritten below, but that's OK. */
status = sane_get_parameters (s, 0);
if (status != SANE_STATUS_GOOD)
return status;
if (s->fd < 0) {
/* translate options into s->mode for convenient access: */
s->mode = make_mode (s->val[OPT_MODE].s);
if (s->mode == TRUECOLOR)
{
if (s->val[OPT_PREVIEW].w && s->val[OPT_GRAY_PREVIEW].w) {
/* Force gray-scale mode when previewing. */
s->mode = GREYSCALE;
s->params.format = SANE_FRAME_GRAY;
s->params.bytes_per_line = s->params.pixels_per_line;
s->params.last_frame = SANE_TRUE;
}
}
status = sanei_scsi_open (s->hw->sane.name, &s->fd, sense_handler, 0);
if (status != SANE_STATUS_GOOD) {
DBG(1, "open: open of %s failed: %s\n",
s->hw->sane.name, sane_strstatus (status));
return status;
}
}
status = wait_ready (s->fd);
if (status != SANE_STATUS_GOOD) {
DBG(1, "open: wait_ready() failed: %s\n", sane_strstatus (status));
goto stop_scanner_and_return;
}
status = scan_area_and_windows (s);
if (status != SANE_STATUS_GOOD) {
DBG(1, "open: set scan area command failed: %s\n",
sane_strstatus (status));
goto stop_scanner_and_return;
}
status = mode_select (s);
if (status != SANE_STATUS_GOOD)
goto stop_scanner_and_return;
s->scanning = SANE_TRUE;
status = start_scan (s);
if (status != SANE_STATUS_GOOD)
goto stop_scanner_and_return;
status = get_image_status (s);
if (status != SANE_STATUS_GOOD)
goto stop_scanner_and_return;
s->line = 0;
if (pipe (fds) < 0)
return SANE_STATUS_IO_ERROR;
s->pipe = fds[0];
s->reader_pipe = fds[1];
s->reader_pid = sanei_thread_begin (reader_process, (void *) s);
if (sanei_thread_is_forked()) close (s->reader_pipe);
return SANE_STATUS_GOOD;
stop_scanner_and_return:
do_cancel (s);
return status;
}
SANE_Status
sane_control_option (SANE_Handle handle, SANE_Int option,
SANE_Action action, void *val, SANE_Int *info)
{
Tamarack_Scanner *s = handle;
SANE_Status status;
SANE_Word cap;
if (info)
*info = 0;
if (s->scanning)
return SANE_STATUS_DEVICE_BUSY;
if (option >= NUM_OPTIONS)
return SANE_STATUS_INVAL;
cap = s->opt[option].cap;
if (!SANE_OPTION_IS_ACTIVE (cap))
return SANE_STATUS_INVAL;
if (action == SANE_ACTION_GET_VALUE) {
switch (option) {
/* word options: */
case OPT_PREVIEW:
case OPT_GRAY_PREVIEW:
case OPT_RESOLUTION:
case OPT_TL_X:
case OPT_TL_Y:
case OPT_BR_X:
case OPT_BR_Y:
case OPT_NUM_OPTS:
case OPT_TRANS:
case OPT_BRIGHTNESS:
case OPT_CONTRAST:
case OPT_THRESHOLD:
#if 0
case OPT_CUSTOM_GAMMA:
#endif
*(SANE_Word *) val = s->val[option].w;
return SANE_STATUS_GOOD;
#if 0
/* word-array options: */
case OPT_GAMMA_VECTOR:
case OPT_GAMMA_VECTOR_R:
case OPT_GAMMA_VECTOR_G:
case OPT_GAMMA_VECTOR_B:
memcpy (val, s->val[option].wa, s->opt[option].size);
return SANE_STATUS_GOOD;
#endif
/* string options: */
case OPT_MODE:
strcpy (val, s->val[option].s);
return SANE_STATUS_GOOD;
}
} else if (action == SANE_ACTION_SET_VALUE) {
if (!SANE_OPTION_IS_SETTABLE (cap))
return SANE_STATUS_INVAL;
status = constrain_value (s, option, val, info);
if (status != SANE_STATUS_GOOD)
return status;
switch (option)
{
/* (mostly) side-effect-free word options: */
case OPT_RESOLUTION:
case OPT_TL_X:
case OPT_TL_Y:
case OPT_BR_X:
case OPT_BR_Y:
if (info)
*info |= SANE_INFO_RELOAD_PARAMS;
/* fall through */
case OPT_PREVIEW:
case OPT_GRAY_PREVIEW:
case OPT_BRIGHTNESS:
case OPT_CONTRAST:
case OPT_THRESHOLD:
case OPT_TRANS:
s->val[option].w = *(SANE_Word *) val;
return SANE_STATUS_GOOD;
#if 0
/* side-effect-free word-array options: */
case OPT_GAMMA_VECTOR:
case OPT_GAMMA_VECTOR_R:
case OPT_GAMMA_VECTOR_G:
case OPT_GAMMA_VECTOR_B:
memcpy (s->val[option].wa, val, s->opt[option].size);
return SANE_STATUS_GOOD;
/* options with side-effects: */
case OPT_CUSTOM_GAMMA:
w = *(SANE_Word *) val;
if (w == s->val[OPT_CUSTOM_GAMMA].w)
return SANE_STATUS_GOOD; /* no change */
s->val[OPT_CUSTOM_GAMMA].w = w;
if (w) {
s->mode = make_mode (s->val[OPT_MODE].s);
if (s->mode == GREYSCALE) {
s->opt[OPT_GAMMA_VECTOR].cap &= ~SANE_CAP_INACTIVE;
} else if (s->mode == TRUECOLOR) {
s->opt[OPT_GAMMA_VECTOR].cap &= ~SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR_R].cap &= ~SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR_G].cap &= ~SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR_B].cap &= ~SANE_CAP_INACTIVE;
}
} else {
s->opt[OPT_GAMMA_VECTOR].cap |= SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR_R].cap |= SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR_G].cap |= SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR_B].cap |= SANE_CAP_INACTIVE;
}
if (info)
*info |= SANE_INFO_RELOAD_OPTIONS;
return SANE_STATUS_GOOD;
#endif
case OPT_MODE:
{
if (s->val[option].s)
free (s->val[option].s);
s->val[option].s = strdup (val);
s->mode = make_mode (s->val[OPT_MODE].s);
if (info)
*info |= SANE_INFO_RELOAD_OPTIONS | SANE_INFO_RELOAD_PARAMS;
s->opt[OPT_BRIGHTNESS].cap |= SANE_CAP_INACTIVE;
s->opt[OPT_CONTRAST].cap |= SANE_CAP_INACTIVE;
s->opt[OPT_THRESHOLD].cap |= SANE_CAP_INACTIVE;
#if 0
s->opt[OPT_CUSTOM_GAMMA].cap |= SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR].cap |= SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR_R].cap |= SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR_G].cap |= SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR_B].cap |= SANE_CAP_INACTIVE;
#endif
if (strcmp (val, SANE_VALUE_SCAN_MODE_LINEART) == 0)
s->opt[OPT_THRESHOLD].cap &= ~SANE_CAP_INACTIVE;
else {
s->opt[OPT_BRIGHTNESS].cap &= ~SANE_CAP_INACTIVE;
s->opt[OPT_CONTRAST].cap &= ~SANE_CAP_INACTIVE;
}
#if 0
if (!binary)
s->opt[OPT_CUSTOM_GAMMA].cap &= ~SANE_CAP_INACTIVE;
if (s->val[OPT_CUSTOM_GAMMA].w) {
if (strcmp (val, SANE_VALUE_SCAN_MODE_GRAY) == 0)
s->opt[OPT_GAMMA_VECTOR].cap &= ~SANE_CAP_INACTIVE;
else if (strcmp (val, SANE_VALUE_SCAN_MODE_COLOR) == 0) {
s->opt[OPT_GAMMA_VECTOR].cap &= ~SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR_R].cap &= ~SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR_G].cap &= ~SANE_CAP_INACTIVE;
s->opt[OPT_GAMMA_VECTOR_B].cap &= ~SANE_CAP_INACTIVE;
}
}
#endif
return SANE_STATUS_GOOD;
}
}
}
return SANE_STATUS_INVAL;
}
