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Code Issues Releases Activity

improve support for 360dpi printers (untested)

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Dominic Radermacher
2026-03-09 08:01:30 +01:00
parent 9cd8a5bc22
commit 57084a30e6
6 changed files with 208 additions and 168 deletions
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src/libptouch.c
+22 -8
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@@ -378,14 +378,7 @@ int ptouch_getstatus(ptouch_dev ptdev, int timeout)
if (tx == 32) {
if (buf[0]==0x80 && buf[1]==0x20) {
memcpy(ptdev->status, buf, 32);
ptdev->tape_width_px=0;
for (i=0; tape_info[i].mm > 0; ++i) {
if (tape_info[i].mm == buf[10]) {
/* TODO: should be adjusted according
to printer dpi ! */
ptdev->tape_width_px=tape_info[i].px;
}
}
ptdev->tape_width_px = ptouch_calc_tape_px(ptdev, buf[10]);
if (ptdev->tape_width_px == 0) {
fprintf(stderr, _("unknown tape width of %imm, please report this.\n"), buf[10]);
}
@@ -420,6 +413,27 @@ int ptouch_get_dpi(ptouch_dev ptdev)
return ptdev->devinfo->dpi;
}
int ptouch_calc_tape_px(ptouch_dev ptdev, const uint8_t tape_width_mm)
{
if (!ptdev) {
fprintf(stderr, _("debug: called ptouch_cal_tape_width() with NULL ptdev\n"));
return 0;
}
int tape_width_px = 0;
for (int i=0; tape_info[i].mm > 0; ++i) {
if (tape_info[i].mm == tape_width_mm) {
if (ptdev->devinfo->dpi == 180) {
tape_width_px = tape_info[i].px;
} else if (ptdev->devinfo->dpi == 360) {
tape_width_px = tape_info[i].px * 2;
} else {
fprintf(stderr, _("printer with %d dpi not supported\n"), ptdev->devinfo->dpi);
}
}
}
return tape_width_px;
}
/* TODO: The actual number of maximum lines should be calculated according to
printer resolution, tapewidth and fontsize */
/* printer resolution is planned to be taken into account when calculating