RFC: hacks to get the SureLab D700 working

Solomon Peachy <[email protected]> Tue, 10 Aug 2021 19:48:18 -0400
Newsgroups	gmane.linux.printing.gimp-print.devel
Message-ID	<[email protected]>
Here are the non-XML changes sitting in my tree. The changes in 
stpi_escp2_init_printer() need to be gated off some sort of feature 
flag, perhaps <rollOnly/> in the model.xml file that defines a 
MODEL_ROLL_ONLY capability bit?  Not sure what approach I should take 
here.

The other change disables the special-case in 720x360 resolution so the 
ESC(U command matches what the windows driver sends the printer, but 
there doesn't seem to be any adverse effects to leaving it unchanged.

diff --git a/src/main/escp2-driver.c b/src/main/escp2-driver.c
index 13c39e73..011a43e1 100644
--- a/src/main/escp2-driver.c
+++ b/src/main/escp2-driver.c
@@ -405,6 +405,16 @@ escp2_set_dot_size(stp_vars_t *v)
     stp_send_command(v, "\033(e", "bcc", 0, pd->drop_size);
 }
 
+static void
+escp2_set_cutter(stp_vars_t *v)
+{
+  escp2_privdata_t *pd = get_privdata(v);
+  int l = pd->page_true_height * 2880 / 72;
+  /* always 2880, independent of configured resolutions */
+
+  stp_send_command(v, "\033(g", "bl", l);
+}
+
 static void
 escp2_set_page_height(stp_vars_t *v)
 {
@@ -623,9 +633,12 @@ stpi_escp2_init_printer(stp_vars_t *v)
   escp2_set_printer_weave(v);
   escp2_set_printhead_speed(v);
   escp2_set_dot_size(v);
+  escp2_set_cutter(v);
   escp2_set_printhead_resolution(v);
+#if 0
   escp2_set_page_height(v);
   escp2_set_margins(v);
+#endif
   escp2_set_paper_dimensions(v);
 }
 
diff --git a/src/main/print-escp2.c b/src/main/print-escp2.c
index a1814eac..24463843 100644
--- a/src/main/print-escp2.c
+++ b/src/main/print-escp2.c
@@ -3889,8 +3889,10 @@ adjusted_vertical_resolution(const stp_vars_t *v, const res_t *res)
 {
   if (res->vres >= escp2_base_separation(v) * 2)
     return res->vres;
+#if 0 // XXX this causes ESC(U to differ from the Windows driver
   else if (res->hres >= escp2_base_separation(v) * 2)	/* Special case 720x360 */
     return escp2_base_separation(v) * 2;
+#endif
   else if (res->vres % 90 == 0)
     return res->vres;
   else


 - Solomon
-- 
Solomon Peachy			      pizza at shaftnet dot org (email&xmpp)
                                      @pizza:shaftnet dot org   (matrix)
High Springs, FL                      speachy (libra.chat)

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