test: add a calibrated (swapped) tablet device

Swap any input for both x/y and default to a calibration matrix that
swaps it back. In theory, that device will then behave as every other
device.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

meson.build

@@ -804,6 +804,7 @@ if get_option('tests')
 		'test/litest-device-wacom-bamboo-2fg-pad.c',
 		'test/litest-device-wacom-bamboo-2fg-pen.c',
 		'test/litest-device-wacom-bamboo-16fg-pen.c',
+		'test/litest-device-wacom-calibrated-tablet.c',
 		'test/litest-device-wacom-cintiq-12wx-pen.c',
 		'test/litest-device-wacom-cintiq-13hdt-finger.c',
 		'test/litest-device-wacom-cintiq-13hdt-pad.c',

test/litest-device-wacom-calibrated-tablet.c

@@ -0,0 +1,140 @@
+/*
+ * Copyright © 2023 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "config.h"
+
+#include "litest.h"
+#include "litest-int.h"
+
+static bool
+inverter(struct litest_device *dev,
+		 double *x, double *y,
+		 struct axis_replacement *axes)
+{
+	/* Input data is in percent (0-100), so let's swap x and y around.
+	 * With our matrix this should be undone by libinput later
+	 * and the tablet behaves as if normal */
+	*x = 100 - *x;
+	*y = 100 - *y;
+
+	/* let the generic code handle the event */
+	return false;
+}
+
+static bool
+proximity_in_handler(struct litest_device *dev,
+		     unsigned int tool_type,
+		     double *x, double *y,
+		     struct axis_replacement *axes)
+{
+	/* let the generic code handle the event */
+	return inverter(dev, x, y, axes);
+}
+
+static struct input_event proximity_in[] = {
+	{ .type = EV_ABS, .code = ABS_X, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_Y, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_PRESSURE, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_KEY, .code = LITEST_BTN_TOOL_AUTO, .value = 1 },
+	{ .type = EV_SYN, .code = SYN_REPORT, .value = 0 },
+	{ .type = -1, .code = -1 },
+};
+
+static struct input_event proximity_out[] = {
+	{ .type = EV_ABS, .code = ABS_X, .value = 0 },
+	{ .type = EV_ABS, .code = ABS_Y, .value = 0 },
+	{ .type = EV_KEY, .code = LITEST_BTN_TOOL_AUTO, .value = 0 },
+	{ .type = EV_SYN, .code = SYN_REPORT, .value = 0 },
+	{ .type = -1, .code = -1 },
+};
+
+static struct input_event motion[] = {
+	{ .type = EV_ABS, .code = ABS_X, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_Y, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_ABS, .code = ABS_PRESSURE, .value = LITEST_AUTO_ASSIGN },
+	{ .type = EV_SYN, .code = SYN_REPORT, .value = 0 },
+	{ .type = -1, .code = -1 },
+};
+
+static int
+get_axis_default(struct litest_device *d, unsigned int evcode, int32_t *value)
+{
+	switch (evcode) {
+	case ABS_PRESSURE:
+		*value = 100;
+		return 0;
+	}
+	return 1;
+}
+
+static struct litest_device_interface interface = {
+	.tablet_proximity_in = proximity_in_handler,
+	.tablet_tip_down = inverter,
+	.tablet_tip_up = inverter,
+	.tablet_motion = inverter,
+
+	.tablet_proximity_in_events = proximity_in,
+	.tablet_proximity_out_events = proximity_out,
+	.tablet_motion_events = motion,
+
+	.get_axis_default = get_axis_default,
+};
+
+static struct input_absinfo absinfo[] = {
+	{ ABS_X, 0, 29476, 4, 0, 100 },
+	{ ABS_Y, 0, 16624, 4, 0, 100 },
+	{ ABS_PRESSURE, 0, 1023, 0, 0, 0 },
+	{ .value = -1 },
+};
+
+static struct input_id input_id = {
+	.bustype = 0x3,
+	.vendor = 0x56a,
+	.product = 0x501e,
+	.version = 0x111,
+};
+
+static int events[] = {
+	EV_KEY, BTN_TOOL_PEN,
+	EV_KEY, BTN_TOOL_RUBBER,
+	EV_KEY, BTN_TOUCH,
+	EV_KEY, BTN_STYLUS,
+	EV_KEY, BTN_STYLUS2,
+	INPUT_PROP_MAX, INPUT_PROP_DIRECT,
+	-1, -1,
+};
+
+TEST_DEVICE("wacom-calibrated-tablet",
+	.type = LITEST_WACOM_CALIBRATED_TABLET,
+	.features = LITEST_TABLET|LITEST_PRECALIBRATED,
+	.interface = &interface,
+
+	.name = "Wacom MultiTouch Sensor Pen",
+	.id = &input_id,
+	.events = events,
+	.absinfo = absinfo,
+	.udev_properties = {
+	{ "LIBINPUT_CALIBRATION_MATRIX", "-1 0 1 0 -1 1" },
+	{ NULL }
+	},
+)

test/litest.h

@@ -328,6 +328,7 @@ enum litest_device_type {
 	LITEST_MOUSE_FORMAT_STRING,
 	LITEST_LENOVO_SCROLLPOINT,
 	LITEST_SYNAPTICS_PHANTOMCLICKS,
+	LITEST_WACOM_CALIBRATED_TABLET,
 };
 
 #define LITEST_DEVICELESS	-2