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+/*
+ * Copyright © 2016 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 <check.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <libinput.h>
+#include <unistd.h>
+
+#include "libinput-util.h"
+#include "litest.h"
+
+START_TEST(trackball_rotation_config_defaults)
+{
+ struct litest_device *dev = litest_current_device();
+ struct libinput_device *device = dev->libinput_device;
+ int angle;
+
+ ck_assert(libinput_device_config_rotation_is_available(device));
+
+ angle = libinput_device_config_rotation_get_angle(device);
+ ck_assert_int_eq(angle, 0);
+ angle = libinput_device_config_rotation_get_default_angle(device);
+ ck_assert_int_eq(angle, 0);
+}
+END_TEST
+
+START_TEST(trackball_rotation_config_invalid_range)
+{
+ struct litest_device *dev = litest_current_device();
+ struct libinput_device *device = dev->libinput_device;
+ enum libinput_config_status status;
+
+ status = libinput_device_config_rotation_set_angle(device, 360);
+ ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_INVALID);
+ status = libinput_device_config_rotation_set_angle(device, 361);
+ ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_INVALID);
+ status = libinput_device_config_rotation_set_angle(device, -1);
+ ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_INVALID);
+}
+END_TEST
+
+START_TEST(trackball_rotation_config_no_rotation)
+{
+ struct litest_device *dev = litest_current_device();
+ struct libinput_device *device = dev->libinput_device;
+ enum libinput_config_status status;
+ int angle;
+
+ ck_assert(!libinput_device_config_rotation_is_available(device));
+
+ angle = libinput_device_config_rotation_get_angle(device);
+ ck_assert_int_eq(angle, 0);
+ angle = libinput_device_config_rotation_get_default_angle(device);
+ ck_assert_int_eq(angle, 0);
+
+ /* 0 always succeeds */
+ status = libinput_device_config_rotation_set_angle(device, 0);
+ ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_SUCCESS);
+
+ for (angle = 1; angle < 360; angle++) {
+ if (angle % 90 == 0)
+ continue;
+ status = libinput_device_config_rotation_set_angle(device,
+ angle);
+ ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_UNSUPPORTED);
+ }
+}
+END_TEST
+
+START_TEST(trackball_rotation_config_right_angle)
+{
+ struct litest_device *dev = litest_current_device();
+ struct libinput_device *device = dev->libinput_device;
+ enum libinput_config_status status;
+ int angle;
+
+ ck_assert(libinput_device_config_rotation_is_available(device));
+
+ for (angle = 0; angle < 360; angle += 90) {
+ status = libinput_device_config_rotation_set_angle(device,
+ angle);
+ ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_SUCCESS);
+ }
+}
+END_TEST
+
+START_TEST(trackball_rotation_config_odd_angle)
+{
+ struct litest_device *dev = litest_current_device();
+ struct libinput_device *device = dev->libinput_device;
+ enum libinput_config_status status;
+ int angle;
+
+ ck_assert(libinput_device_config_rotation_is_available(device));
+
+ for (angle = 0; angle < 360; angle++) {
+ if (angle % 90 == 0)
+ continue;
+ status = libinput_device_config_rotation_set_angle(device,
+ angle);
+ ck_assert_int_eq(status, LIBINPUT_CONFIG_STATUS_INVALID);
+ }
+}
+END_TEST
+
+START_TEST(trackball_rotation_x)
+{
+ struct litest_device *dev = litest_current_device();
+ struct libinput *li = dev->libinput;
+ struct libinput_device *device = dev->libinput_device;
+ struct libinput_event *event;
+ struct libinput_event_pointer *ptrev;
+ int angle;
+ double dx, dy;
+
+ litest_drain_events(li);
+
+ for (angle = 0; angle < 360; angle++) {
+ libinput_device_config_rotation_set_angle(device, angle);
+
+ litest_event(dev, EV_REL, REL_X, 1);
+ litest_event(dev, EV_SYN, SYN_REPORT, 0);
+ libinput_dispatch(li);
+
+ event = libinput_get_event(li);
+ ptrev = litest_is_motion_event(event);
+
+ /* Test unaccelerated because pointer accel may mangle the
+ other coords */
+ dx = libinput_event_pointer_get_dx_unaccelerated(ptrev);
+ dy = libinput_event_pointer_get_dy_unaccelerated(ptrev);
+
+ switch (angle) {
+ case 0:
+ ck_assert_double_eq(dx, 1.0);
+ ck_assert_double_eq(dy, 0.0);
+ break;
+ case 90:
+ ck_assert_double_eq(dx, 0.0);
+ ck_assert_double_eq(dy, 1.0);
+ break;
+ case 180:
+ ck_assert_double_eq(dx, -1.0);
+ ck_assert_double_eq(dy, 0.0);
+ break;
+ case 270:
+ ck_assert_double_eq(dx, 0.0);
+ ck_assert_double_eq(dy, -1.0);
+ break;
+ }
+ libinput_event_destroy(event);
+ }
+}
+END_TEST
+
+START_TEST(trackball_rotation_y)
+{
+ struct litest_device *dev = litest_current_device();
+ struct libinput *li = dev->libinput;
+ struct libinput_device *device = dev->libinput_device;
+ struct libinput_event *event;
+ struct libinput_event_pointer *ptrev;
+ int angle;
+ double dx, dy;
+
+ litest_drain_events(li);
+
+ for (angle = 0; angle < 360; angle++) {
+ libinput_device_config_rotation_set_angle(device, angle);
+
+ litest_event(dev, EV_REL, REL_Y, 1);
+ litest_event(dev, EV_SYN, SYN_REPORT, 0);
+ libinput_dispatch(li);
+
+ event = libinput_get_event(li);
+ ptrev = litest_is_motion_event(event);
+
+ /* Test unaccelerated because pointer accel may mangle the
+ other coords */
+ dx = libinput_event_pointer_get_dx_unaccelerated(ptrev);
+ dy = libinput_event_pointer_get_dy_unaccelerated(ptrev);
+
+ switch (angle) {
+ case 0:
+ ck_assert_double_eq(dx, 0.0);
+ ck_assert_double_eq(dy, 1.0);
+ break;
+ case 90:
+ ck_assert_double_eq(dx, -1.0);
+ ck_assert_double_eq(dy, 0.0);
+ break;
+ case 180:
+ ck_assert_double_eq(dx, 0.0);
+ ck_assert_double_eq(dy, -1.0);
+ break;
+ case 270:
+ ck_assert_double_eq(dx, 1.0);
+ ck_assert_double_eq(dy, 0.0);
+ break;
+ }
+ libinput_event_destroy(event);
+ }
+}
+END_TEST
+
+START_TEST(trackball_rotation_accel)
+{
+ struct litest_device *dev = litest_current_device();
+ struct libinput *li = dev->libinput;
+ struct libinput_device *device = dev->libinput_device;
+ struct libinput_event *event;
+ struct libinput_event_pointer *ptrev;
+ double dx, dy;
+
+ litest_drain_events(li);
+
+ /* Pointer accel mangles the coordinates, so we only test one angle
+ * and rely on the unaccelerated tests above to warn us when
+ * something's off */
+ libinput_device_config_rotation_set_angle(device, 90);
+
+ litest_event(dev, EV_REL, REL_Y, 1);
+ litest_event(dev, EV_REL, REL_X, 1);
+ litest_event(dev, EV_SYN, SYN_REPORT, 0);
+ libinput_dispatch(li);
+
+ event = libinput_get_event(li);
+ ptrev = litest_is_motion_event(event);
+
+ dx = libinput_event_pointer_get_dx(ptrev);
+ dy = libinput_event_pointer_get_dy(ptrev);
+
+ ck_assert_double_lt(dx, 0.0);
+ ck_assert_double_gt(dy, 0.0);
+ libinput_event_destroy(event);
+}
+END_TEST
+
+void
+litest_setup_tests_trackball(void)
+{
+ litest_add("trackball:rotation", trackball_rotation_config_defaults, LITEST_TRACKBALL, LITEST_ANY);
+ litest_add("trackball:rotation", trackball_rotation_config_invalid_range, LITEST_TRACKBALL, LITEST_ANY);
+ litest_add("trackball:rotation", trackball_rotation_config_no_rotation, LITEST_ANY, LITEST_TRACKBALL);
+ litest_add("trackball:rotation", trackball_rotation_config_right_angle, LITEST_TRACKBALL, LITEST_ANY);
+ litest_add("trackball:rotation", trackball_rotation_config_odd_angle, LITEST_TRACKBALL, LITEST_ANY);
+ litest_add("trackball:rotation", trackball_rotation_x, LITEST_TRACKBALL, LITEST_ANY);
+ litest_add("trackball:rotation", trackball_rotation_y, LITEST_TRACKBALL, LITEST_ANY);
+ litest_add("trackball:rotation", trackball_rotation_accel, LITEST_TRACKBALL, LITEST_ANY);
+}