2 * Copyright © 2012 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial
14 * portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
20 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
21 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 #include "shared/os-compatibility.h"
37 #include "shared/xalloc.h"
38 #include "shared/zalloc.h"
39 #include "weston-test-client-helper.h"
41 #define max(a, b) (((a) > (b)) ? (a) : (b))
42 #define min(a, b) (((a) > (b)) ? (b) : (a))
43 #define clip(x, a, b) min(max(x, a), b)
46 surface_contains(struct surface *surface, int x, int y)
48 /* test whether a global x,y point is contained in the surface */
51 int sw = surface->width;
52 int sh = surface->height;
53 return x >= sx && y >= sy && x < sx + sw && y < sy + sh;
57 frame_callback_handler(void *data, struct wl_callback *callback, uint32_t time)
63 wl_callback_destroy(callback);
66 static const struct wl_callback_listener frame_listener = {
67 frame_callback_handler
71 frame_callback_set(struct wl_surface *surface, int *done)
73 struct wl_callback *callback;
76 callback = wl_surface_frame(surface);
77 wl_callback_add_listener(callback, &frame_listener, done);
83 frame_callback_wait_nofail(struct client *client, int *done)
86 if (wl_display_dispatch(client->wl_display) < 0)
94 move_client(struct client *client, int x, int y)
96 struct surface *surface = client->surface;
99 client->surface->x = x;
100 client->surface->y = y;
101 weston_test_move_surface(client->test->weston_test, surface->wl_surface,
102 surface->x, surface->y);
103 /* The attach here is necessary because commit() will call configure
104 * only on surfaces newly attached, and the one that sets the surface
105 * position is the configure. */
106 wl_surface_attach(surface->wl_surface, surface->wl_buffer, 0, 0);
107 wl_surface_damage(surface->wl_surface, 0, 0, surface->width,
110 frame_callback_set(surface->wl_surface, &done);
112 wl_surface_commit(surface->wl_surface);
114 frame_callback_wait(client, &done);
118 get_n_egl_buffers(struct client *client)
120 client->test->n_egl_buffers = -1;
122 weston_test_get_n_egl_buffers(client->test->weston_test);
123 wl_display_roundtrip(client->wl_display);
125 return client->test->n_egl_buffers;
129 pointer_handle_enter(void *data, struct wl_pointer *wl_pointer,
130 uint32_t serial, struct wl_surface *wl_surface,
131 wl_fixed_t x, wl_fixed_t y)
133 struct pointer *pointer = data;
136 pointer->focus = wl_surface_get_user_data(wl_surface);
138 pointer->focus = NULL;
140 pointer->x = wl_fixed_to_int(x);
141 pointer->y = wl_fixed_to_int(y);
143 fprintf(stderr, "test-client: got pointer enter %d %d, surface %p\n",
144 pointer->x, pointer->y, pointer->focus);
148 pointer_handle_leave(void *data, struct wl_pointer *wl_pointer,
149 uint32_t serial, struct wl_surface *wl_surface)
151 struct pointer *pointer = data;
153 pointer->focus = NULL;
155 fprintf(stderr, "test-client: got pointer leave, surface %p\n",
156 wl_surface ? wl_surface_get_user_data(wl_surface) : NULL);
160 pointer_handle_motion(void *data, struct wl_pointer *wl_pointer,
161 uint32_t time, wl_fixed_t x, wl_fixed_t y)
163 struct pointer *pointer = data;
165 pointer->x = wl_fixed_to_int(x);
166 pointer->y = wl_fixed_to_int(y);
168 fprintf(stderr, "test-client: got pointer motion %d %d\n",
169 pointer->x, pointer->y);
173 pointer_handle_button(void *data, struct wl_pointer *wl_pointer,
174 uint32_t serial, uint32_t time, uint32_t button,
177 struct pointer *pointer = data;
179 pointer->button = button;
180 pointer->state = state;
182 fprintf(stderr, "test-client: got pointer button %u %u\n",
187 pointer_handle_axis(void *data, struct wl_pointer *wl_pointer,
188 uint32_t time, uint32_t axis, wl_fixed_t value)
190 fprintf(stderr, "test-client: got pointer axis %u %f\n",
191 axis, wl_fixed_to_double(value));
195 pointer_handle_frame(void *data, struct wl_pointer *wl_pointer)
197 fprintf(stderr, "test-client: got pointer frame\n");
201 pointer_handle_axis_source(void *data, struct wl_pointer *wl_pointer,
204 fprintf(stderr, "test-client: got pointer axis source %u\n", source);
208 pointer_handle_axis_stop(void *data, struct wl_pointer *wl_pointer,
209 uint32_t time, uint32_t axis)
211 fprintf(stderr, "test-client: got pointer axis stop\n");
215 pointer_handle_axis_discrete(void *data, struct wl_pointer *wl_pointer,
216 uint32_t axis, int32_t value)
218 fprintf(stderr, "test-client: got pointer axis discrete %u %d\n",
222 static const struct wl_pointer_listener pointer_listener = {
223 pointer_handle_enter,
224 pointer_handle_leave,
225 pointer_handle_motion,
226 pointer_handle_button,
228 pointer_handle_frame,
229 pointer_handle_axis_source,
230 pointer_handle_axis_stop,
231 pointer_handle_axis_discrete,
235 keyboard_handle_keymap(void *data, struct wl_keyboard *wl_keyboard,
236 uint32_t format, int fd, uint32_t size)
240 fprintf(stderr, "test-client: got keyboard keymap\n");
244 keyboard_handle_enter(void *data, struct wl_keyboard *wl_keyboard,
245 uint32_t serial, struct wl_surface *wl_surface,
246 struct wl_array *keys)
248 struct keyboard *keyboard = data;
251 keyboard->focus = wl_surface_get_user_data(wl_surface);
253 keyboard->focus = NULL;
255 fprintf(stderr, "test-client: got keyboard enter, surface %p\n",
260 keyboard_handle_leave(void *data, struct wl_keyboard *wl_keyboard,
261 uint32_t serial, struct wl_surface *wl_surface)
263 struct keyboard *keyboard = data;
265 keyboard->focus = NULL;
267 fprintf(stderr, "test-client: got keyboard leave, surface %p\n",
268 wl_surface ? wl_surface_get_user_data(wl_surface) : NULL);
272 keyboard_handle_key(void *data, struct wl_keyboard *wl_keyboard,
273 uint32_t serial, uint32_t time, uint32_t key,
276 struct keyboard *keyboard = data;
279 keyboard->state = state;
281 fprintf(stderr, "test-client: got keyboard key %u %u\n", key, state);
285 keyboard_handle_modifiers(void *data, struct wl_keyboard *wl_keyboard,
286 uint32_t serial, uint32_t mods_depressed,
287 uint32_t mods_latched, uint32_t mods_locked,
290 struct keyboard *keyboard = data;
292 keyboard->mods_depressed = mods_depressed;
293 keyboard->mods_latched = mods_latched;
294 keyboard->mods_locked = mods_locked;
295 keyboard->group = group;
297 fprintf(stderr, "test-client: got keyboard modifiers %u %u %u %u\n",
298 mods_depressed, mods_latched, mods_locked, group);
302 keyboard_handle_repeat_info(void *data, struct wl_keyboard *wl_keyboard,
303 int32_t rate, int32_t delay)
305 struct keyboard *keyboard = data;
307 keyboard->repeat_info.rate = rate;
308 keyboard->repeat_info.delay = delay;
310 fprintf(stderr, "test-client: got keyboard repeat_info %d %d\n",
314 static const struct wl_keyboard_listener keyboard_listener = {
315 keyboard_handle_keymap,
316 keyboard_handle_enter,
317 keyboard_handle_leave,
319 keyboard_handle_modifiers,
320 keyboard_handle_repeat_info,
324 touch_handle_down(void *data, struct wl_touch *wl_touch,
325 uint32_t serial, uint32_t time, struct wl_surface *surface,
326 int32_t id, wl_fixed_t x_w, wl_fixed_t y_w)
328 struct touch *touch = data;
330 touch->down_x = wl_fixed_to_int(x_w);
331 touch->down_y = wl_fixed_to_int(y_w);
334 fprintf(stderr, "test-client: got touch down %d %d, surf: %p, id: %d\n",
335 touch->down_x, touch->down_y, surface, id);
339 touch_handle_up(void *data, struct wl_touch *wl_touch,
340 uint32_t serial, uint32_t time, int32_t id)
342 struct touch *touch = data;
345 fprintf(stderr, "test-client: got touch up, id: %d\n", id);
349 touch_handle_motion(void *data, struct wl_touch *wl_touch,
350 uint32_t time, int32_t id, wl_fixed_t x_w, wl_fixed_t y_w)
352 struct touch *touch = data;
353 touch->x = wl_fixed_to_int(x_w);
354 touch->y = wl_fixed_to_int(y_w);
356 fprintf(stderr, "test-client: got touch motion, %d %d, id: %d\n",
357 touch->x, touch->y, id);
361 touch_handle_frame(void *data, struct wl_touch *wl_touch)
363 struct touch *touch = data;
367 fprintf(stderr, "test-client: got touch frame (%d)\n", touch->frame_no);
371 touch_handle_cancel(void *data, struct wl_touch *wl_touch)
373 struct touch *touch = data;
377 fprintf(stderr, "test-client: got touch cancel (%d)\n", touch->cancel_no);
380 static const struct wl_touch_listener touch_listener = {
389 surface_enter(void *data,
390 struct wl_surface *wl_surface, struct wl_output *output)
392 struct surface *surface = data;
394 surface->output = wl_output_get_user_data(output);
396 fprintf(stderr, "test-client: got surface enter output %p\n",
401 surface_leave(void *data,
402 struct wl_surface *wl_surface, struct wl_output *output)
404 struct surface *surface = data;
406 surface->output = NULL;
408 fprintf(stderr, "test-client: got surface leave output %p\n",
409 wl_output_get_user_data(output));
412 static const struct wl_surface_listener surface_listener = {
418 create_shm_buffer(struct client *client, int width, int height, void **pixels)
420 struct wl_shm *shm = client->wl_shm;
421 int stride = width * 4;
422 int size = stride * height;
423 struct wl_shm_pool *pool;
424 struct wl_buffer *buffer;
428 fd = os_create_anonymous_file(size);
431 data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
432 if (data == MAP_FAILED) {
434 assert(data != MAP_FAILED);
437 pool = wl_shm_create_pool(shm, fd, size);
438 buffer = wl_shm_pool_create_buffer(pool, 0, width, height, stride,
439 WL_SHM_FORMAT_ARGB8888);
440 wl_shm_pool_destroy(pool);
451 shm_format(void *data, struct wl_shm *wl_shm, uint32_t format)
453 struct client *client = data;
455 if (format == WL_SHM_FORMAT_ARGB8888)
456 client->has_argb = 1;
459 struct wl_shm_listener shm_listener = {
464 test_handle_pointer_position(void *data, struct weston_test *weston_test,
465 wl_fixed_t x, wl_fixed_t y)
467 struct test *test = data;
468 test->pointer_x = wl_fixed_to_int(x);
469 test->pointer_y = wl_fixed_to_int(y);
471 fprintf(stderr, "test-client: got global pointer %d %d\n",
472 test->pointer_x, test->pointer_y);
476 test_handle_n_egl_buffers(void *data, struct weston_test *weston_test, uint32_t n)
478 struct test *test = data;
480 test->n_egl_buffers = n;
484 test_handle_capture_screenshot_done(void *data, struct weston_test *weston_test)
486 struct test *test = data;
488 printf("Screenshot has been captured\n");
489 test->buffer_copy_done = 1;
492 static const struct weston_test_listener test_listener = {
493 test_handle_pointer_position,
494 test_handle_n_egl_buffers,
495 test_handle_capture_screenshot_done,
499 input_update_devices(struct input *input)
501 struct pointer *pointer;
502 struct keyboard *keyboard;
505 struct wl_seat *seat = input->wl_seat;
506 enum wl_seat_capability caps = input->caps;
508 if ((caps & WL_SEAT_CAPABILITY_POINTER) && !input->pointer) {
509 pointer = xzalloc(sizeof *pointer);
510 pointer->wl_pointer = wl_seat_get_pointer(seat);
511 wl_pointer_set_user_data(pointer->wl_pointer, pointer);
512 wl_pointer_add_listener(pointer->wl_pointer, &pointer_listener,
514 input->pointer = pointer;
515 } else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && input->pointer) {
516 wl_pointer_destroy(input->pointer->wl_pointer);
517 free(input->pointer);
518 input->pointer = NULL;
521 if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !input->keyboard) {
522 keyboard = xzalloc(sizeof *keyboard);
523 keyboard->wl_keyboard = wl_seat_get_keyboard(seat);
524 wl_keyboard_set_user_data(keyboard->wl_keyboard, keyboard);
525 wl_keyboard_add_listener(keyboard->wl_keyboard, &keyboard_listener,
527 input->keyboard = keyboard;
528 } else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && input->keyboard) {
529 wl_keyboard_destroy(input->keyboard->wl_keyboard);
530 free(input->keyboard);
531 input->keyboard = NULL;
534 if ((caps & WL_SEAT_CAPABILITY_TOUCH) && !input->touch) {
535 touch = xzalloc(sizeof *touch);
536 touch->wl_touch = wl_seat_get_touch(seat);
537 wl_touch_set_user_data(touch->wl_touch, touch);
538 wl_touch_add_listener(touch->wl_touch, &touch_listener,
540 input->touch = touch;
541 } else if (!(caps & WL_SEAT_CAPABILITY_TOUCH) && input->touch) {
542 wl_touch_destroy(input->touch->wl_touch);
549 seat_handle_capabilities(void *data, struct wl_seat *seat,
550 enum wl_seat_capability caps)
552 struct input *input = data;
556 /* we will create/update the devices only with the right (test) seat.
557 * If we haven't discovered which seat is the test seat, just
558 * store capabilities and bail out */
559 if (input->seat_name && strcmp(input->seat_name, "test-seat") == 0)
560 input_update_devices(input);
562 fprintf(stderr, "test-client: got seat %p capabilities: %x\n",
567 seat_handle_name(void *data, struct wl_seat *seat, const char *name)
569 struct input *input = data;
571 input->seat_name = strdup(name);
572 assert(input->seat_name && "No memory");
574 fprintf(stderr, "test-client: got seat %p name: \'%s\'\n",
578 static const struct wl_seat_listener seat_listener = {
579 seat_handle_capabilities,
584 output_handle_geometry(void *data,
585 struct wl_output *wl_output,
594 struct output *output = data;
601 output_handle_mode(void *data,
602 struct wl_output *wl_output,
608 struct output *output = data;
610 if (flags & WL_OUTPUT_MODE_CURRENT) {
611 output->width = width;
612 output->height = height;
617 output_handle_scale(void *data,
618 struct wl_output *wl_output,
621 struct output *output = data;
623 output->scale = scale;
627 output_handle_done(void *data,
628 struct wl_output *wl_output)
630 struct output *output = data;
632 output->initialized = 1;
635 static const struct wl_output_listener output_listener = {
636 output_handle_geometry,
643 handle_global(void *data, struct wl_registry *registry,
644 uint32_t id, const char *interface, uint32_t version)
646 struct client *client = data;
647 struct output *output;
649 struct global *global;
652 global = xzalloc(sizeof *global);
654 global->interface = strdup(interface);
656 global->version = version;
657 wl_list_insert(client->global_list.prev, &global->link);
659 if (strcmp(interface, "wl_compositor") == 0) {
660 client->wl_compositor =
661 wl_registry_bind(registry, id,
662 &wl_compositor_interface, version);
663 } else if (strcmp(interface, "wl_seat") == 0) {
664 input = xzalloc(sizeof *input);
666 wl_registry_bind(registry, id,
667 &wl_seat_interface, version);
668 wl_seat_add_listener(input->wl_seat, &seat_listener, input);
669 wl_list_insert(&client->inputs, &input->link);
670 } else if (strcmp(interface, "wl_shm") == 0) {
672 wl_registry_bind(registry, id,
673 &wl_shm_interface, version);
674 wl_shm_add_listener(client->wl_shm, &shm_listener, client);
675 } else if (strcmp(interface, "wl_output") == 0) {
676 output = xzalloc(sizeof *output);
678 wl_registry_bind(registry, id,
679 &wl_output_interface, version);
680 wl_output_add_listener(output->wl_output,
681 &output_listener, output);
682 client->output = output;
683 } else if (strcmp(interface, "weston_test") == 0) {
684 test = xzalloc(sizeof *test);
686 wl_registry_bind(registry, id,
687 &weston_test_interface, version);
688 weston_test_add_listener(test->weston_test, &test_listener, test);
690 } else if (strcmp(interface, "wl_drm") == 0) {
691 client->has_wl_drm = true;
695 static const struct wl_registry_listener registry_listener = {
700 skip(const char *fmt, ...)
705 vfprintf(stderr, fmt, argp);
708 /* automake tests uses exit code 77. weston-test-runner will see
709 * this and use it, and then weston-test's sigchld handler (in the
710 * weston process) will use that as an exit status, which is what
711 * automake will see in the end. */
716 expect_protocol_error(struct client *client,
717 const struct wl_interface *intf,
721 uint32_t errcode, failed = 0;
722 const struct wl_interface *interface;
725 /* if the error has not come yet, make it happen */
726 wl_display_roundtrip(client->wl_display);
728 err = wl_display_get_error(client->wl_display);
730 assert(err && "Expected protocol error but nothing came");
731 assert(err == EPROTO && "Expected protocol error but got local error");
733 errcode = wl_display_get_protocol_error(client->wl_display,
737 if (errcode != code) {
738 fprintf(stderr, "Should get error code %d but got %d\n",
743 /* this should be definitely set */
746 if (strcmp(intf->name, interface->name) != 0) {
747 fprintf(stderr, "Should get interface '%s' but got '%s'\n",
748 intf->name, interface->name);
753 fprintf(stderr, "Expected other protocol error\n");
758 fprintf(stderr, "Got expected protocol error on '%s' (object id: %d) "
759 "with code %d\n", interface->name, id, errcode);
763 log_handler(const char *fmt, va_list args)
765 fprintf(stderr, "libwayland: ");
766 vfprintf(stderr, fmt, args);
770 input_destroy(struct input *inp)
772 wl_list_remove(&inp->link);
773 wl_seat_destroy(inp->wl_seat);
777 /* find the test-seat and set it in client.
778 * Destroy other inputs */
780 client_set_input(struct client *cl)
782 struct input *inp, *inptmp;
783 wl_list_for_each_safe(inp, inptmp, &cl->inputs, link) {
784 assert(inp->seat_name && "BUG: input with no name");
785 if (strcmp(inp->seat_name, "test-seat") == 0) {
787 input_update_devices(inp);
793 /* we keep only one input */
794 assert(wl_list_length(&cl->inputs) == 1);
800 struct client *client;
802 wl_log_set_handler_client(log_handler);
804 /* connect to display */
805 client = xzalloc(sizeof *client);
806 client->wl_display = wl_display_connect(NULL);
807 assert(client->wl_display);
808 wl_list_init(&client->global_list);
809 wl_list_init(&client->inputs);
811 /* setup registry so we can bind to interfaces */
812 client->wl_registry = wl_display_get_registry(client->wl_display);
813 wl_registry_add_listener(client->wl_registry, ®istry_listener,
816 /* this roundtrip makes sure we have all globals and we bound to them */
817 client_roundtrip(client);
818 /* this roundtrip makes sure we got all wl_shm.format and wl_seat.*
820 client_roundtrip(client);
822 /* find the right input for us */
823 client_set_input(client);
825 /* must have WL_SHM_FORMAT_ARGB32 */
826 assert(client->has_argb);
828 /* must have weston_test interface */
829 assert(client->test);
831 /* must have an output */
832 assert(client->output);
834 /* the output must be initialized */
835 assert(client->output->initialized == 1);
837 /* must have seat set */
838 assert(client->input);
844 create_client_and_test_surface(int x, int y, int width, int height)
846 struct client *client;
847 struct surface *surface;
849 client = create_client();
851 /* initialize the client surface */
852 surface = xzalloc(sizeof *surface);
853 surface->wl_surface =
854 wl_compositor_create_surface(client->wl_compositor);
855 assert(surface->wl_surface);
857 wl_surface_add_listener(surface->wl_surface, &surface_listener,
860 client->surface = surface;
861 wl_surface_set_user_data(surface->wl_surface, surface);
863 surface->width = width;
864 surface->height = height;
865 surface->wl_buffer = create_shm_buffer(client, width, height,
868 memset(surface->data, 64, width * height * 4);
870 move_client(client, x, y);
878 char *path = getenv("WESTON_TEST_OUTPUT_PATH");
886 screenshot_output_filename(const char *basename, uint32_t seq)
890 if (asprintf(&filename, "%s/%s-%02d.png",
891 output_path(), basename, seq) < 0)
899 char *path = getenv("WESTON_TEST_REFERENCE_PATH");
902 return "./tests/reference";
907 screenshot_reference_filename(const char *basename, uint32_t seq)
911 if (asprintf(&filename, "%s/%s-%02d.png",
912 reference_path(), basename, seq) < 0)
918 * check_surfaces_geometry() - verifies two surfaces are same size
920 * @returns true if surfaces have the same width and height, or false
921 * if not, or if there is no actual data.
924 check_surfaces_geometry(const struct surface *a, const struct surface *b)
926 if (a == NULL || b == NULL) {
927 printf("Undefined surfaces\n");
930 else if (a->data == NULL || b->data == NULL) {
931 printf("Undefined data\n");
934 else if (a->width != b->width || a->height != b->height) {
935 printf("Mismatched dimensions: %d,%d != %d,%d\n",
936 a->width, a->height, b->width, b->height);
943 * check_surfaces_equal() - tests if two surfaces are pixel-identical
945 * Returns true if surface buffers have all the same byte values,
946 * false if the surfaces don't match or can't be compared due to
947 * different dimensions.
950 check_surfaces_equal(const struct surface *a, const struct surface *b)
952 int bpp = 4; /* Assumes ARGB */
954 if (!check_surfaces_geometry(a, b))
957 return (memcmp(a->data, b->data, bpp * a->width * a->height) == 0);
961 * check_surfaces_match_in_clip() - tests if a given region within two
962 * surfaces are pixel-identical.
964 * Returns true if the two surfaces have the same byte values within the
965 * given clipping region, or false if they don't match or the surfaces
969 check_surfaces_match_in_clip(const struct surface *a, const struct surface *b, const struct rectangle *clip_rect)
974 int bpp = 4; /* Assumes ARGB */
976 if (!check_surfaces_geometry(a, b) || clip_rect == NULL)
979 if (clip_rect->x > a->width || clip_rect->y > a->height) {
980 printf("Clip outside image boundaries\n");
984 x0 = max(0, clip_rect->x);
985 y0 = max(0, clip_rect->y);
986 x1 = min(a->width, clip_rect->x + clip_rect->width);
987 y1 = min(a->height, clip_rect->y + clip_rect->height);
989 if (x0 == x1 || y0 == y1) {
990 printf("Degenerate comparison\n");
994 printf("Bytewise comparison inside clip\n");
995 for (i=y0; i<y1; i++) {
996 p = a->data + i * a->width * bpp + x0 * bpp;
997 q = b->data + i * b->width * bpp + x0 * bpp;
998 if (memcmp(p, q, (x1-x0)*bpp) != 0) {
999 /* Dump the bad row */
1000 printf("Mismatched image on row %d\n", i);
1001 for (j=0; j<(x1-x0)*bpp; j++) {
1002 char a_char = *((char*)(p+j*bpp));
1003 char b_char = *((char*)(q+j*bpp));
1004 printf("%d,%d: %8x %8x %s\n", i, j, a_char, b_char,
1005 (a_char != b_char)? " <---": "");
1014 /** write_surface_as_png()
1016 * Writes out a given weston test surface to disk as a PNG image
1017 * using the provided filename (with path).
1019 * @returns true if successfully saved file; false otherwise.
1022 write_surface_as_png(const struct surface *weston_surface, const char *fname)
1024 cairo_surface_t *cairo_surface;
1025 cairo_status_t status;
1026 int bpp = 4; /* Assume ARGB */
1027 int stride = bpp * weston_surface->width;
1029 cairo_surface = cairo_image_surface_create_for_data(weston_surface->data,
1030 CAIRO_FORMAT_ARGB32,
1031 weston_surface->width,
1032 weston_surface->height,
1034 printf("Writing PNG to disk\n");
1035 status = cairo_surface_write_to_png(cairo_surface, fname);
1036 if (status != CAIRO_STATUS_SUCCESS) {
1037 printf("Failed to save screenshot: %s\n",
1038 cairo_status_to_string(status));
1041 cairo_surface_destroy(cairo_surface);
1045 /** load_surface_from_png()
1047 * Reads a PNG image from disk using the given filename (and path)
1048 * and returns as a freshly allocated weston test surface.
1050 * @returns weston test surface with image, which should be free'd
1051 * when no longer used; or, NULL in case of error.
1054 load_surface_from_png(const char *fname)
1056 struct surface *reference;
1057 cairo_surface_t *reference_cairo_surface;
1058 cairo_status_t status;
1059 size_t source_data_size;
1063 reference_cairo_surface = cairo_image_surface_create_from_png(fname);
1064 status = cairo_surface_status(reference_cairo_surface);
1065 if (status != CAIRO_STATUS_SUCCESS) {
1066 printf("Could not open %s: %s\n", fname, cairo_status_to_string(status));
1067 cairo_surface_destroy(reference_cairo_surface);
1071 /* Disguise the cairo surface in a weston test surface */
1072 reference = zalloc(sizeof *reference);
1073 if (reference == NULL) {
1074 perror("zalloc reference");
1075 cairo_surface_destroy(reference_cairo_surface);
1078 reference->width = cairo_image_surface_get_width(reference_cairo_surface);
1079 reference->height = cairo_image_surface_get_height(reference_cairo_surface);
1080 stride = cairo_image_surface_get_stride(reference_cairo_surface);
1081 source_data_size = stride * reference->height;
1083 /* Check that the file's stride matches our assumption */
1085 if (stride != bpp * reference->width) {
1086 printf("Mismatched stride for screenshot reference image %s\n", fname);
1087 cairo_surface_destroy(reference_cairo_surface);
1092 /* Allocate new buffer for our weston reference, and copy the data from
1093 the cairo surface so we can destroy it */
1094 reference->data = zalloc(source_data_size);
1095 if (reference->data == NULL) {
1096 perror("zalloc reference data");
1097 cairo_surface_destroy(reference_cairo_surface);
1101 memcpy(reference->data,
1102 cairo_image_surface_get_data(reference_cairo_surface),
1105 cairo_surface_destroy(reference_cairo_surface);
1109 /** create_screenshot_surface()
1111 * Allocates and initializes a weston test surface for use in
1112 * storing a screenshot of the client's output. Establishes a
1113 * shm backed wl_buffer for retrieving screenshot image data
1114 * from the server, sized to match the client's output display.
1116 * @returns stack allocated surface image, which should be
1117 * free'd when done using it.
1120 create_screenshot_surface(struct client *client)
1122 struct surface *screenshot;
1123 screenshot = zalloc(sizeof *screenshot);
1124 if (screenshot == NULL)
1126 screenshot->wl_buffer = create_shm_buffer(client,
1127 client->output->width,
1128 client->output->height,
1130 screenshot->height = client->output->height;
1131 screenshot->width = client->output->width;
1136 /** capture_screenshot_of_output()
1138 * Requests a screenshot from the server of the output that the
1139 * client appears on. The image data returned from the server
1140 * can be accessed from the screenshot surface's data member.
1142 * @returns a new surface object, which should be free'd when no
1146 capture_screenshot_of_output(struct client *client)
1148 struct surface *screenshot;
1150 /* Create a surface to hold the screenshot */
1151 screenshot = create_screenshot_surface(client);
1153 client->test->buffer_copy_done = 0;
1154 weston_test_capture_screenshot(client->test->weston_test,
1155 client->output->wl_output,
1156 screenshot->wl_buffer);
1157 while (client->test->buffer_copy_done == 0)
1158 if (wl_display_dispatch(client->wl_display) < 0)
1161 /* FIXME: Document somewhere the orientation the screenshot is taken
1162 * and how the clip coords are interpreted, in case of scaling/transform.
1163 * If we're using read_pixels() just make sure it is documented somewhere.
1164 * Protocol docs in the XML, comparison function docs in Doxygen style.