diff options
Diffstat (limited to 'backend/epson2.c')
| -rw-r--r-- | backend/epson2.c | 63 |
1 files changed, 40 insertions, 23 deletions
diff --git a/backend/epson2.c b/backend/epson2.c index e023010..b1eda33 100644 --- a/backend/epson2.c +++ b/backend/epson2.c @@ -977,7 +977,7 @@ init_options(Epson_Scanner *s) s->opt[OPT_MODE].size = max_string_size(mode_list); s->opt[OPT_MODE].constraint_type = SANE_CONSTRAINT_STRING_LIST; s->opt[OPT_MODE].constraint.string_list = mode_list; - s->val[OPT_MODE].w = 0; /* Binary */ + s->val[OPT_MODE].w = 0; /* Lineart */ /* disable infrared on unsupported scanners */ if (!e2_model(s, "GT-X800") && !e2_model(s, "GT-X700") && !e2_model(s, "GT-X900")) @@ -988,14 +988,13 @@ init_options(Epson_Scanner *s) s->opt[OPT_BIT_DEPTH].title = SANE_TITLE_BIT_DEPTH; s->opt[OPT_BIT_DEPTH].desc = SANE_DESC_BIT_DEPTH; s->opt[OPT_BIT_DEPTH].type = SANE_TYPE_INT; - s->opt[OPT_BIT_DEPTH].unit = SANE_UNIT_NONE; + s->opt[OPT_BIT_DEPTH].unit = SANE_UNIT_BIT; s->opt[OPT_BIT_DEPTH].constraint_type = SANE_CONSTRAINT_WORD_LIST; s->opt[OPT_BIT_DEPTH].constraint.word_list = s->hw->depth_list; - s->opt[OPT_BIT_DEPTH].cap |= SANE_CAP_INACTIVE; - s->val[OPT_BIT_DEPTH].w = s->hw->depth_list[1]; /* the first "real" element is the default */ + s->val[OPT_BIT_DEPTH].w = 8; /* default to 8 bit */ - if (s->hw->depth_list[0] == 1) /* only one element in the list -> hide the option */ - s->opt[OPT_BIT_DEPTH].cap |= SANE_CAP_INACTIVE; + /* default is Lineart, disable depth selection */ + s->opt[OPT_BIT_DEPTH].cap |= SANE_CAP_INACTIVE; /* halftone */ s->opt[OPT_HALFTONE].name = SANE_NAME_HALFTONE; @@ -1535,6 +1534,8 @@ sane_close(SANE_Handle handle) int i; Epson_Scanner *s; + DBG(1, "* %s\n", __func__); + /* * XXX Test if there is still data pending from * the scanner. If so, then do a cancel @@ -1909,6 +1910,8 @@ setvalue(SANE_Handle handle, SANE_Int option, void *value, SANE_Int *info) sval->w = optindex; + DBG(17, "%s: setting mode to %d\n", __func__, optindex); + /* halftoning available only on bw scans */ if (s->hw->cmd->set_halftoning != 0) setOptionState(s, mode_params[optindex].depth == 1, @@ -1923,16 +1926,18 @@ setvalue(SANE_Handle handle, SANE_Int option, void *value, SANE_Int *info) /* if binary, then disable the bit depth selection */ if (optindex == 0) { + DBG(17, "%s: disabling bit depth selection\n", __func__); s->opt[OPT_BIT_DEPTH].cap |= SANE_CAP_INACTIVE; } else { - if (s->hw->depth_list[0] == 1) - s->opt[OPT_BIT_DEPTH].cap |= - SANE_CAP_INACTIVE; - else { - s->opt[OPT_BIT_DEPTH].cap &= - ~SANE_CAP_INACTIVE; - s->val[OPT_BIT_DEPTH].w = - mode_params[optindex].depth; + if (s->hw->depth_list[0] == 1) { + DBG(17, "%s: only one depth is available\n", __func__); + s->opt[OPT_BIT_DEPTH].cap |= SANE_CAP_INACTIVE; + } else { + + DBG(17, "%s: enabling bit depth selection\n", __func__); + + s->opt[OPT_BIT_DEPTH].cap &= ~SANE_CAP_INACTIVE; + s->val[OPT_BIT_DEPTH].w = mode_params[optindex].depth; } } @@ -2077,7 +2082,10 @@ sane_start(SANE_Handle handle) Epson_Device *dev = s->hw; SANE_Status status; - DBG(5, "%s\n", __func__); + DBG(5, "* %s\n", __func__); + + s->eof = SANE_FALSE; + s->canceling = SANE_FALSE; /* check if we just have finished working with the ADF */ status = e2_check_adf(s); @@ -2202,9 +2210,7 @@ sane_start(SANE_Handle handle) if (s->buf == NULL) return SANE_STATUS_NO_MEM; - s->eof = SANE_FALSE; s->ptr = s->end = s->buf; - s->canceling = SANE_FALSE; /* feed the first sheet in the ADF */ if (dev->ADF && dev->use_extension && dev->cmd->feed) { @@ -2275,8 +2281,14 @@ sane_read(SANE_Handle handle, SANE_Byte *data, SANE_Int max_length, SANE_Status status; Epson_Scanner *s = (Epson_Scanner *) handle; - if (s->buf == NULL || s->canceling) - return SANE_STATUS_CANCELLED; + DBG(18, "* %s: eof: %d, canceling: %d\n", + __func__, s->eof, s->canceling); + + /* sane_read called before sane_start? */ + if (s->buf == NULL) { + DBG(1, "%s: buffer is NULL", __func__); + return SANE_STATUS_INVAL; + } *length = 0; @@ -2285,9 +2297,12 @@ sane_read(SANE_Handle handle, SANE_Byte *data, SANE_Int max_length, else status = e2_block_read(s); - if (status == SANE_STATUS_CANCELLED) { + /* The scanning operation might be canceled by the scanner itself + * or the fronted program + */ + if (status == SANE_STATUS_CANCELLED || s->canceling) { e2_scan_finish(s); - return status; + return SANE_STATUS_CANCELLED; } /* XXX if FS G and STATUS_IOERR, use e2_check_extended_status */ @@ -2298,9 +2313,9 @@ sane_read(SANE_Handle handle, SANE_Byte *data, SANE_Int max_length, e2_copy_image_data(s, data, max_length, length); - DBG(18, "%d lines read, eof: %d, status: %d\n", + DBG(18, "%d lines read, eof: %d, canceling: %d, status: %d\n", *length / s->params.bytes_per_line, - s->eof, status); + s->canceling, s->eof, status); /* continue reading if appropriate */ if (status == SANE_STATUS_GOOD) @@ -2323,6 +2338,8 @@ sane_cancel(SANE_Handle handle) { Epson_Scanner *s = (Epson_Scanner *) handle; + DBG(1, "* %s\n", __func__); + s->canceling = SANE_TRUE; } |