test/touch.c

   1 /*
   2  * Copyright © 2013 Red Hat, Inc.
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and
   5  * its documentation for any purpose is hereby granted without fee, provided
   6  * that the above copyright notice appear in all copies and that both that
   7  * copyright notice and this permission notice appear in supporting
   8  * documentation, and that the name of the copyright holders not be used in
   9  * advertising or publicity pertaining to distribution of the software
  10  * without specific, written prior permission.  The copyright holders make
  11  * no representations about the suitability of this software for any
  12  * purpose.  It is provided "as is" without express or implied warranty.
  13  *
  14  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
  15  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  16  * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
  17  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
  18  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
  19  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  20  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  21  */
  22
  23 #include <config.h>
  24
  25 #include <check.h>
  26 #include <errno.h>
  27 #include <fcntl.h>
  28 #include <libinput.h>
  29 #include <libevdev/libevdev.h>
  30 #include <unistd.h>
  31
  32 #include "libinput-util.h"
  33 #include "litest.h"
  34
  35 START_TEST(touch_frame_events)
  36 {
  37         struct litest_device *dev = litest_current_device();
  38         struct libinput *li = dev->libinput;
  39         struct libinput_event *event;
  40         int have_frame_event = 0;
  41
  42         litest_drain_events(dev->libinput);
  43
  44         litest_touch_down(dev, 0, 10, 10);
  45         libinput_dispatch(li);
  46
  47         while ((event = libinput_get_event(li))) {
  48                 if (libinput_event_get_type(event) == LIBINPUT_EVENT_TOUCH_FRAME)
  49                         have_frame_event++;
  50                 libinput_event_destroy(event);
  51         }
  52         ck_assert_int_eq(have_frame_event, 1);
  53
  54         litest_touch_down(dev, 1, 10, 10);
  55         libinput_dispatch(li);
  56
  57         while ((event = libinput_get_event(li))) {
  58                 if (libinput_event_get_type(event) == LIBINPUT_EVENT_TOUCH_FRAME)
  59                         have_frame_event++;
  60                 libinput_event_destroy(event);
  61         }
  62         ck_assert_int_eq(have_frame_event, 2);
  63 }
  64 END_TEST
  65
  66 START_TEST(touch_abs_transform)
  67 {
  68         struct litest_device *dev;
  69         struct libinput *libinput;
  70         struct libinput_event *ev;
  71         struct libinput_event_touch *tev;
  72         double fx, fy;
  73         bool tested = false;
  74
  75         struct input_absinfo abs[] = {
  76                 { ABS_X, 0, 32767, 75, 0, 10 },
  77                 { ABS_Y, 0, 32767, 129, 0, 9 },
  78                 { ABS_MT_POSITION_X, 0, 32767, 0, 0, 10 },
  79                 { ABS_MT_POSITION_Y, 0, 32767, 0, 0, 9 },
  80                 { .value = -1 },
  81         };
  82
  83         dev = litest_create_device_with_overrides(LITEST_WACOM_TOUCH,
  84                                                   "litest Highres touch device",
  85                                                   NULL, abs, NULL);
  86
  87         libinput = dev->libinput;
  88
  89         litest_touch_down(dev, 0, 100, 100);
  90
  91         libinput_dispatch(libinput);
  92
  93         while ((ev = libinput_get_event(libinput))) {
  94                 if (libinput_event_get_type(ev) != LIBINPUT_EVENT_TOUCH_DOWN) {
  95                         libinput_event_destroy(ev);
  96                         continue;
  97                 }
  98
  99                 tev = libinput_event_get_touch_event(ev);
 100                 fx = libinput_event_touch_get_x_transformed(tev, 1920);
 101                 ck_assert_int_eq(fx, 1919.0);
 102                 fy = libinput_event_touch_get_y_transformed(tev, 720);
 103                 ck_assert_int_eq(fy, 719.0);
 104
 105                 tested = true;
 106
 107                 libinput_event_destroy(ev);
 108         }
 109
 110         ck_assert(tested);
 111
 112         litest_delete_device(dev);
 113 }
 114 END_TEST
 115
 116 START_TEST(touch_many_slots)
 117 {
 118         struct libinput *libinput;
 119         struct litest_device *dev;
 120         struct libinput_event *ev;
 121         int slot;
 122         const int num_tps = 100;
 123         int slot_count = 0;
 124         enum libinput_event_type type;
 125
 126         struct input_absinfo abs[] = {
 127                 { ABS_MT_SLOT, 0, num_tps - 1, 0, 0, 0 },
 128                 { .value = -1 },
 129         };
 130
 131         dev = litest_create_device_with_overrides(LITEST_WACOM_TOUCH,
 132                                                   "litest Multi-touch device",
 133                                                   NULL, abs, NULL);
 134         libinput = dev->libinput;
 135
 136         for (slot = 0; slot < num_tps; ++slot)
 137                 litest_touch_down(dev, slot, 0, 0);
 138         for (slot = 0; slot < num_tps; ++slot)
 139                 litest_touch_up(dev, slot);
 140
 141         libinput_dispatch(libinput);
 142         while ((ev = libinput_get_event(libinput))) {
 143                 type = libinput_event_get_type(ev);
 144
 145                 if (type == LIBINPUT_EVENT_TOUCH_DOWN)
 146                         slot_count++;
 147                 else if (type == LIBINPUT_EVENT_TOUCH_UP)
 148                         break;
 149
 150                 libinput_event_destroy(ev);
 151                 libinput_dispatch(libinput);
 152         }
 153
 154         ck_assert_notnull(ev);
 155         ck_assert_int_gt(slot_count, 0);
 156
 157         libinput_dispatch(libinput);
 158         do {
 159                 type = libinput_event_get_type(ev);
 160                 ck_assert_int_ne(type, LIBINPUT_EVENT_TOUCH_DOWN);
 161                 if (type == LIBINPUT_EVENT_TOUCH_UP)
 162                         slot_count--;
 163
 164                 libinput_event_destroy(ev);
 165                 libinput_dispatch(libinput);
 166         } while ((ev = libinput_get_event(libinput)));
 167
 168         ck_assert_int_eq(slot_count, 0);
 169
 170         litest_delete_device(dev);
 171 }
 172 END_TEST
 173
 174 START_TEST(touch_double_touch_down_up)
 175 {
 176         struct libinput *libinput;
 177         struct litest_device *dev;
 178         struct libinput_event *ev;
 179         bool got_down = false;
 180         bool got_up = false;
 181
 182         dev = litest_current_device();
 183         libinput = dev->libinput;
 184
 185         litest_touch_down(dev, 0, 0, 0);
 186         litest_touch_down(dev, 0, 0, 0);
 187         litest_touch_up(dev, 0);
 188         litest_touch_up(dev, 0);
 189
 190         libinput_dispatch(libinput);
 191
 192         while ((ev = libinput_get_event(libinput))) {
 193                 switch (libinput_event_get_type(ev)) {
 194                 case LIBINPUT_EVENT_TOUCH_DOWN:
 195                         ck_assert(!got_down);
 196                         got_down = true;
 197                         break;
 198                 case LIBINPUT_EVENT_TOUCH_UP:
 199                         ck_assert(got_down);
 200                         ck_assert(!got_up);
 201                         got_up = true;
 202                         break;
 203                 default:
 204                         break;
 205                 }
 206
 207                 libinput_event_destroy(ev);
 208                 libinput_dispatch(libinput);
 209         }
 210
 211         ck_assert(got_down);
 212         ck_assert(got_up);
 213 }
 214 END_TEST
 215
 216 START_TEST(touch_calibration_scale)
 217 {
 218         struct libinput *li;
 219         struct litest_device *dev;
 220         struct libinput_event *ev;
 221         struct libinput_event_touch *tev;
 222         float matrix[6] = {
 223                 1, 0, 0,
 224                 0, 1, 0
 225         };
 226
 227         float calibration;
 228         double x, y;
 229         const int width = 640, height = 480;
 230
 231         dev = litest_current_device();
 232         li = dev->libinput;
 233
 234         for (calibration = 0.1; calibration < 1; calibration += 0.1) {
 235                 libinput_device_config_calibration_set_matrix(dev->libinput_device,
 236                                                               matrix);
 237                 litest_drain_events(li);
 238
 239                 litest_touch_down(dev, 0, 100, 100);
 240                 litest_touch_up(dev, 0);
 241
 242                 litest_wait_for_event(li);
 243                 ev = libinput_get_event(li);
 244                 ck_assert_int_eq(libinput_event_get_type(ev),
 245                                  LIBINPUT_EVENT_TOUCH_DOWN);
 246                 tev = libinput_event_get_touch_event(ev);
 247
 248                 x = libinput_event_touch_get_x_transformed(tev, width);
 249                 y = libinput_event_touch_get_y_transformed(tev, height);
 250
 251                 ck_assert_int_eq(round(x), round(width * matrix[0]));
 252                 ck_assert_int_eq(round(y), round(height * matrix[4]));
 253
 254                 libinput_event_destroy(ev);
 255                 litest_drain_events(li);
 256
 257                 matrix[0] = calibration;
 258                 matrix[4] = 1 - calibration;
 259         }
 260 }
 261 END_TEST
 262
 263 START_TEST(touch_calibration_rotation)
 264 {
 265         struct libinput *li;
 266         struct litest_device *dev;
 267         struct libinput_event *ev;
 268         struct libinput_event_touch *tev;
 269         float matrix[6];
 270         int i;
 271         double x, y;
 272         int width = 1024, height = 480;
 273
 274         dev = litest_current_device();
 275         li = dev->libinput;
 276
 277         for (i = 0; i < 4; i++) {
 278                 float angle = i * M_PI/2;
 279
 280                 /* [ cos -sin  tx ]
 281                    [ sin  cos  ty ]
 282                    [  0    0   1  ] */
 283                 matrix[0] = cos(angle);
 284                 matrix[1] = -sin(angle);
 285                 matrix[3] = sin(angle);
 286                 matrix[4] = cos(angle);
 287
 288                 switch(i) {
 289                 case 0: /* 0 deg */
 290                         matrix[2] = 0;
 291                         matrix[5] = 0;
 292                         break;
 293                 case 1: /* 90 deg cw */
 294                         matrix[2] = 1;
 295                         matrix[5] = 0;
 296                         break;
 297                 case 2: /* 180 deg cw */
 298                         matrix[2] = 1;
 299                         matrix[5] = 1;
 300                         break;
 301                 case 3: /* 270 deg cw */
 302                         matrix[2] = 0;
 303                         matrix[5] = 1;
 304                         break;
 305                 }
 306
 307                 libinput_device_config_calibration_set_matrix(dev->libinput_device,
 308                                                               matrix);
 309                 litest_drain_events(li);
 310
 311                 litest_touch_down(dev, 0, 80, 20);
 312                 litest_touch_up(dev, 0);
 313                 litest_wait_for_event(li);
 314                 ev = libinput_get_event(li);
 315                 ck_assert_int_eq(libinput_event_get_type(ev),
 316                                  LIBINPUT_EVENT_TOUCH_DOWN);
 317                 tev = libinput_event_get_touch_event(ev);
 318
 319                 x = libinput_event_touch_get_x_transformed(tev, width);
 320                 y = libinput_event_touch_get_y_transformed(tev, height);
 321
 322                 /* rounding errors... */
 323 #define almost_equal(a_, b_) \
 324                 { ck_assert_int_ge((a_) + 0.5, (b_) - 1); \
 325                   ck_assert_int_le((a_) + 0.5, (b_) + 1); }
 326                 switch(i) {
 327                 case 0: /* 0 deg */
 328                         almost_equal(x, width * 0.8);
 329                         almost_equal(y, height * 0.2);
 330                         break;
 331                 case 1: /* 90 deg cw */
 332                         almost_equal(x, width * 0.8);
 333                         almost_equal(y, height * 0.8);
 334                         break;
 335                 case 2: /* 180 deg cw */
 336                         almost_equal(x, width * 0.2);
 337                         almost_equal(y, height * 0.8);
 338                         break;
 339                 case 3: /* 270 deg cw */
 340                         almost_equal(x, width * 0.2);
 341                         almost_equal(y, height * 0.2);
 342                         break;
 343                 }
 344 #undef almost_equal
 345
 346
 347                 libinput_event_destroy(ev);
 348                 litest_drain_events(li);
 349         }
 350 }
 351 END_TEST
 352
 353 START_TEST(touch_calibration_translation)
 354 {
 355         struct libinput *li;
 356         struct litest_device *dev;
 357         struct libinput_event *ev;
 358         struct libinput_event_touch *tev;
 359         float matrix[6] = {
 360                 1, 0, 0,
 361                 0, 1, 0
 362         };
 363
 364         float translate;
 365         double x, y;
 366         const int width = 640, height = 480;
 367
 368         dev = litest_current_device();
 369         li = dev->libinput;
 370
 371         /* translating from 0 up to 1 device width/height */
 372         for (translate = 0.1; translate <= 1; translate += 0.1) {
 373                 libinput_device_config_calibration_set_matrix(dev->libinput_device,
 374                                                               matrix);
 375                 litest_drain_events(li);
 376
 377                 litest_touch_down(dev, 0, 100, 100);
 378                 litest_touch_up(dev, 0);
 379
 380                 litest_wait_for_event(li);
 381                 ev = libinput_get_event(li);
 382                 ck_assert_int_eq(libinput_event_get_type(ev),
 383                                  LIBINPUT_EVENT_TOUCH_DOWN);
 384                 tev = libinput_event_get_touch_event(ev);
 385
 386                 x = libinput_event_touch_get_x_transformed(tev, width);
 387                 y = libinput_event_touch_get_y_transformed(tev, height);
 388
 389                 /* sigh. rounding errors */
 390                 ck_assert_int_ge(round(x), width + round(width * matrix[2]) - 1);
 391                 ck_assert_int_ge(round(y), height + round(height * matrix[5]) - 1);
 392                 ck_assert_int_le(round(x), width + round(width * matrix[2]) + 1);
 393                 ck_assert_int_le(round(y), height + round(height * matrix[5]) + 1);
 394
 395                 libinput_event_destroy(ev);
 396                 litest_drain_events(li);
 397
 398                 matrix[2] = translate;
 399                 matrix[5] = 1 - translate;
 400         }
 401 }
 402 END_TEST
 403
 404 int
 405 main(int argc, char **argv)
 406 {
 407         litest_add("touch:frame", touch_frame_events, LITEST_TOUCH, LITEST_ANY);
 408         litest_add_no_device("touch:abs-transform", touch_abs_transform);
 409         litest_add_no_device("touch:many-slots", touch_many_slots);
 410         litest_add("touch:double-touch-down-up", touch_double_touch_down_up, LITEST_TOUCH, LITEST_ANY);
 411         litest_add("touch:calibration", touch_calibration_scale, LITEST_TOUCH, LITEST_TOUCHPAD);
 412         litest_add("touch:calibration", touch_calibration_scale, LITEST_SINGLE_TOUCH, LITEST_TOUCHPAD);
 413         litest_add("touch:calibration", touch_calibration_rotation, LITEST_TOUCH, LITEST_TOUCHPAD);
 414         litest_add("touch:calibration", touch_calibration_rotation, LITEST_SINGLE_TOUCH, LITEST_TOUCHPAD);
 415         litest_add("touch:calibration", touch_calibration_translation, LITEST_TOUCH, LITEST_TOUCHPAD);
 416         litest_add("touch:calibration", touch_calibration_translation, LITEST_SINGLE_TOUCH, LITEST_TOUCHPAD);
 417
 418         return litest_run(argc, argv);
 419 }