2 * Copyright © 2010-2011 Intel Corporation
3 * Copyright © 2008-2011 Kristian Høgsberg
4 * Copyright © 2012 Collabora, Ltd.
6 * Permission to use, copy, modify, distribute, and sell this software and
7 * its documentation for any purpose is hereby granted without fee, provided
8 * that the above copyright notice appear in all copies and that both that
9 * copyright notice and this permission notice appear in supporting
10 * documentation, and that the name of the copyright holders not be used in
11 * advertising or publicity pertaining to distribution of the software
12 * without specific, written prior permission. The copyright holders make
13 * no representations about the suitability of this software for any
14 * purpose. It is provided "as is" without express or implied warranty.
16 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
17 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
19 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
20 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
21 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
22 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
36 #include <sys/ioctl.h>
38 #include <sys/types.h>
39 #include <sys/socket.h>
43 #include <linux/input.h>
49 #include <wayland-server.h>
50 #include "compositor.h"
52 static struct wl_list child_process_list;
53 static jmp_buf segv_jmp_buf;
56 sigchld_handler(int signal_number, void *data)
58 struct weston_process *p;
62 pid = waitpid(-1, &status, WNOHANG);
66 wl_list_for_each(p, &child_process_list, link) {
71 if (&p->link == &child_process_list) {
72 fprintf(stderr, "unknown child process exited\n");
76 wl_list_remove(&p->link);
77 p->cleanup(p, status);
83 weston_output_switch_mode(struct weston_output *output, struct weston_mode *mode)
85 if (!output->switch_mode)
88 return output->switch_mode(output, mode);
92 weston_watch_process(struct weston_process *process)
94 wl_list_insert(&child_process_list, &process->link);
98 child_client_exec(int sockfd, const char *path)
104 /* do not give our signal mask to the new process */
105 sigfillset(&allsigs);
106 sigprocmask(SIG_UNBLOCK, &allsigs, NULL);
108 /* Launch clients as the user. */
111 /* SOCK_CLOEXEC closes both ends, so we dup the fd to get a
112 * non-CLOEXEC fd to pass through exec. */
113 clientfd = dup(sockfd);
114 if (clientfd == -1) {
115 fprintf(stderr, "compositor: dup failed: %m\n");
119 snprintf(s, sizeof s, "%d", clientfd);
120 setenv("WAYLAND_SOCKET", s, 1);
122 if (execl(path, path, NULL) < 0)
123 fprintf(stderr, "compositor: executing '%s' failed: %m\n",
127 WL_EXPORT struct wl_client *
128 weston_client_launch(struct weston_compositor *compositor,
129 struct weston_process *proc,
131 weston_process_cleanup_func_t cleanup)
135 struct wl_client *client;
137 if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, sv) < 0) {
138 fprintf(stderr, "weston_client_launch: "
139 "socketpair failed while launching '%s': %m\n",
148 fprintf(stderr, "weston_client_launch: "
149 "fork failed while launching '%s': %m\n", path);
154 child_client_exec(sv[1], path);
160 client = wl_client_create(compositor->wl_display, sv[0]);
163 fprintf(stderr, "weston_client_launch: "
164 "wl_client_create failed while launching '%s'.\n",
170 proc->cleanup = cleanup;
171 weston_watch_process(proc);
177 surface_handle_buffer_destroy(struct wl_listener *listener, void *data)
179 struct weston_surface *es =
180 container_of(listener, struct weston_surface,
181 buffer_destroy_listener);
186 static const pixman_region32_data_t undef_region_data;
189 undef_region(pixman_region32_t *region)
191 pixman_region32_fini(region);
192 region->data = (pixman_region32_data_t *) &undef_region_data;
196 region_is_undefined(pixman_region32_t *region)
198 return region->data == &undef_region_data;
202 empty_region(pixman_region32_t *region)
204 if (!region_is_undefined(region))
205 pixman_region32_fini(region);
207 pixman_region32_init(region);
210 WL_EXPORT struct weston_surface *
211 weston_surface_create(struct weston_compositor *compositor)
213 struct weston_surface *surface;
215 surface = calloc(1, sizeof *surface);
219 wl_signal_init(&surface->surface.resource.destroy_signal);
221 wl_list_init(&surface->link);
222 wl_list_init(&surface->layer_link);
224 surface->surface.resource.client = NULL;
226 surface->compositor = compositor;
227 surface->image = EGL_NO_IMAGE_KHR;
228 surface->alpha = 255;
229 surface->brightness = 255;
230 surface->saturation = 255;
233 surface->buffer = NULL;
234 surface->output = NULL;
236 pixman_region32_init(&surface->damage);
237 pixman_region32_init(&surface->opaque);
238 pixman_region32_init(&surface->clip);
239 undef_region(&surface->input);
240 pixman_region32_init(&surface->transform.opaque);
241 wl_list_init(&surface->frame_callback_list);
243 surface->buffer_destroy_listener.notify =
244 surface_handle_buffer_destroy;
246 wl_list_init(&surface->geometry.transformation_list);
247 wl_list_insert(&surface->geometry.transformation_list,
248 &surface->transform.position.link);
249 weston_matrix_init(&surface->transform.position.matrix);
250 pixman_region32_init(&surface->transform.boundingbox);
251 surface->geometry.dirty = 1;
257 weston_surface_set_color(struct weston_surface *surface,
258 GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha)
260 surface->color[0] = red;
261 surface->color[1] = green;
262 surface->color[2] = blue;
263 surface->color[3] = alpha;
264 surface->shader = &surface->compositor->solid_shader;
268 surface_to_global_float(struct weston_surface *surface,
269 int32_t sx, int32_t sy, GLfloat *x, GLfloat *y)
271 if (surface->transform.enabled) {
272 struct weston_vector v = { { sx, sy, 0.0f, 1.0f } };
274 weston_matrix_transform(&surface->transform.matrix, &v);
276 if (fabsf(v.f[3]) < 1e-6) {
277 fprintf(stderr, "warning: numerical instability in "
278 "weston_surface_to_global(), divisor = %g\n",
285 *x = v.f[0] / v.f[3];
286 *y = v.f[1] / v.f[3];
288 *x = sx + surface->geometry.x;
289 *y = sy + surface->geometry.y;
294 weston_surface_damage_below(struct weston_surface *surface)
296 struct weston_compositor *compositor = surface->compositor;
297 pixman_region32_t damage;
299 pixman_region32_init(&damage);
300 pixman_region32_subtract(&damage, &surface->transform.boundingbox,
302 pixman_region32_union(&compositor->damage,
303 &compositor->damage, &damage);
304 pixman_region32_fini(&damage);
308 surface_compute_bbox(struct weston_surface *surface, int32_t sx, int32_t sy,
309 int32_t width, int32_t height,
310 pixman_region32_t *bbox)
312 GLfloat min_x = HUGE_VALF, min_y = HUGE_VALF;
313 GLfloat max_x = -HUGE_VALF, max_y = -HUGE_VALF;
318 { sx + width, sy + height }
320 GLfloat int_x, int_y;
323 for (i = 0; i < 4; ++i) {
325 surface_to_global_float(surface, s[i][0], s[i][1], &x, &y);
336 int_x = floorf(min_x);
337 int_y = floorf(min_y);
338 pixman_region32_init_rect(bbox, int_x, int_y,
339 ceilf(max_x) - int_x, ceilf(max_y) - int_y);
343 weston_surface_update_transform_disable(struct weston_surface *surface)
345 surface->transform.enabled = 0;
347 /* round off fractions when not transformed */
348 surface->geometry.x = roundf(surface->geometry.x);
349 surface->geometry.y = roundf(surface->geometry.y);
351 pixman_region32_init_rect(&surface->transform.boundingbox,
354 surface->geometry.width,
355 surface->geometry.height);
357 if (surface->alpha == 255) {
358 pixman_region32_copy(&surface->transform.opaque,
360 pixman_region32_translate(&surface->transform.opaque,
362 surface->geometry.y);
367 weston_surface_update_transform_enable(struct weston_surface *surface)
369 struct weston_matrix *matrix = &surface->transform.matrix;
370 struct weston_matrix *inverse = &surface->transform.inverse;
371 struct weston_transform *tform;
373 surface->transform.enabled = 1;
375 /* Otherwise identity matrix, but with x and y translation. */
376 surface->transform.position.matrix.d[12] = surface->geometry.x;
377 surface->transform.position.matrix.d[13] = surface->geometry.y;
379 weston_matrix_init(matrix);
380 wl_list_for_each(tform, &surface->geometry.transformation_list, link)
381 weston_matrix_multiply(matrix, &tform->matrix);
383 if (weston_matrix_invert(inverse, matrix) < 0) {
384 /* Oops, bad total transformation, not invertible */
385 fprintf(stderr, "error: weston_surface %p"
386 " transformation not invertible.\n", surface);
390 surface_compute_bbox(surface, 0, 0, surface->geometry.width,
391 surface->geometry.height,
392 &surface->transform.boundingbox);
398 weston_surface_update_transform(struct weston_surface *surface)
400 if (!surface->geometry.dirty)
403 surface->geometry.dirty = 0;
405 weston_surface_damage_below(surface);
407 pixman_region32_fini(&surface->transform.boundingbox);
408 pixman_region32_fini(&surface->transform.opaque);
409 pixman_region32_init(&surface->transform.opaque);
411 if (region_is_undefined(&surface->input))
412 pixman_region32_init_rect(&surface->input, 0, 0,
413 surface->geometry.width,
414 surface->geometry.height);
416 /* transform.position is always in transformation_list */
417 if (surface->geometry.transformation_list.next ==
418 &surface->transform.position.link &&
419 surface->geometry.transformation_list.prev ==
420 &surface->transform.position.link) {
421 weston_surface_update_transform_disable(surface);
423 if (weston_surface_update_transform_enable(surface) < 0)
424 weston_surface_update_transform_disable(surface);
427 /* weston_surface_damage() without update */
428 pixman_region32_union(&surface->damage, &surface->damage,
429 &surface->transform.boundingbox);
431 if (weston_surface_is_mapped(surface))
432 weston_surface_assign_output(surface);
434 weston_compositor_schedule_repaint(surface->compositor);
438 weston_surface_to_global_float(struct weston_surface *surface,
439 int32_t sx, int32_t sy, GLfloat *x, GLfloat *y)
441 weston_surface_update_transform(surface);
443 surface_to_global_float(surface, sx, sy, x, y);
447 weston_surface_to_global(struct weston_surface *surface,
448 int32_t sx, int32_t sy, int32_t *x, int32_t *y)
452 weston_surface_to_global_float(surface, sx, sy, &xf, &yf);
458 surface_from_global_float(struct weston_surface *surface,
459 int32_t x, int32_t y, GLfloat *sx, GLfloat *sy)
461 if (surface->transform.enabled) {
462 struct weston_vector v = { { x, y, 0.0f, 1.0f } };
464 weston_matrix_transform(&surface->transform.inverse, &v);
466 if (fabsf(v.f[3]) < 1e-6) {
467 fprintf(stderr, "warning: numerical instability in "
468 "weston_surface_from_global(), divisor = %g\n",
475 *sx = v.f[0] / v.f[3];
476 *sy = v.f[1] / v.f[3];
478 *sx = x - surface->geometry.x;
479 *sy = y - surface->geometry.y;
484 weston_surface_from_global(struct weston_surface *surface,
485 int32_t x, int32_t y, int32_t *sx, int32_t *sy)
489 weston_surface_update_transform(surface);
491 surface_from_global_float(surface, x, y, &sxf, &syf);
497 weston_surface_damage_rectangle(struct weston_surface *surface,
498 int32_t sx, int32_t sy,
499 int32_t width, int32_t height)
501 weston_surface_update_transform(surface);
503 if (surface->transform.enabled) {
504 pixman_region32_t box;
505 surface_compute_bbox(surface, sx, sy, width, height, &box);
506 pixman_region32_union(&surface->damage, &surface->damage,
508 pixman_region32_fini(&box);
510 pixman_region32_union_rect(&surface->damage, &surface->damage,
511 surface->geometry.x + sx,
512 surface->geometry.y + sy,
516 weston_compositor_schedule_repaint(surface->compositor);
520 weston_surface_damage(struct weston_surface *surface)
522 weston_surface_update_transform(surface);
524 pixman_region32_union(&surface->damage, &surface->damage,
525 &surface->transform.boundingbox);
527 weston_compositor_schedule_repaint(surface->compositor);
531 weston_surface_configure(struct weston_surface *surface,
532 GLfloat x, GLfloat y, int width, int height)
534 surface->geometry.x = x;
535 surface->geometry.y = y;
536 surface->geometry.width = width;
537 surface->geometry.height = height;
538 surface->geometry.dirty = 1;
542 weston_surface_set_position(struct weston_surface *surface,
543 GLfloat x, GLfloat y)
545 surface->geometry.x = x;
546 surface->geometry.y = y;
547 surface->geometry.dirty = 1;
551 weston_surface_is_mapped(struct weston_surface *surface)
560 weston_compositor_get_time(void)
564 gettimeofday(&tv, NULL);
566 return tv.tv_sec * 1000 + tv.tv_usec / 1000;
569 static struct weston_surface *
570 weston_compositor_pick_surface(struct weston_compositor *compositor,
571 int32_t x, int32_t y, int32_t *sx, int32_t *sy)
573 struct weston_surface *surface;
575 wl_list_for_each(surface, &compositor->surface_list, link) {
576 weston_surface_from_global(surface, x, y, sx, sy);
577 if (pixman_region32_contains_point(&surface->input,
586 weston_device_repick(struct wl_input_device *device)
588 struct weston_input_device *wd = (struct weston_input_device *) device;
589 const struct wl_pointer_grab_interface *interface;
590 struct weston_surface *surface, *focus;
592 surface = weston_compositor_pick_surface(wd->compositor,
593 device->x, device->y,
597 if (&surface->surface != device->current) {
598 interface = device->pointer_grab->interface;
599 interface->focus(device->pointer_grab, &surface->surface,
600 device->current_x, device->current_y);
601 device->current = &surface->surface;
604 focus = (struct weston_surface *) device->pointer_grab->focus;
606 weston_surface_from_global(focus, device->x, device->y,
607 &device->pointer_grab->x, &device->pointer_grab->y);
611 weston_compositor_repick(struct weston_compositor *compositor)
613 struct weston_input_device *device;
615 if (!compositor->focus)
618 wl_list_for_each(device, &compositor->input_device_list, link)
619 weston_device_repick(&device->input_device);
623 weston_surface_unmap(struct weston_surface *surface)
625 struct wl_input_device *device = surface->compositor->input_device;
627 weston_surface_damage_below(surface);
628 surface->output = NULL;
629 wl_list_remove(&surface->link);
630 wl_list_remove(&surface->layer_link);
632 if (device->keyboard_focus == &surface->surface)
633 wl_input_device_set_keyboard_focus(device, NULL);
634 if (device->pointer_focus == &surface->surface)
635 wl_input_device_set_pointer_focus(device, NULL, 0, 0);
637 weston_compositor_schedule_repaint(surface->compositor);
641 destroy_surface(struct wl_resource *resource)
643 struct weston_surface *surface =
644 container_of(resource,
645 struct weston_surface, surface.resource);
646 struct weston_compositor *compositor = surface->compositor;
648 if (weston_surface_is_mapped(surface))
649 weston_surface_unmap(surface);
651 if (surface->texture)
652 glDeleteTextures(1, &surface->texture);
655 wl_list_remove(&surface->buffer_destroy_listener.link);
657 if (surface->image != EGL_NO_IMAGE_KHR)
658 compositor->destroy_image(compositor->display,
661 pixman_region32_fini(&surface->transform.boundingbox);
662 pixman_region32_fini(&surface->damage);
663 pixman_region32_fini(&surface->opaque);
664 pixman_region32_fini(&surface->clip);
665 if (!region_is_undefined(&surface->input))
666 pixman_region32_fini(&surface->input);
672 weston_surface_destroy(struct weston_surface *surface)
674 /* Not a valid way to destroy a client surface */
675 assert(surface->surface.resource.client == NULL);
677 destroy_surface(&surface->surface.resource);
681 weston_surface_attach(struct wl_surface *surface, struct wl_buffer *buffer)
683 struct weston_surface *es = (struct weston_surface *) surface;
684 struct weston_compositor *ec = es->compositor;
687 weston_buffer_post_release(es->buffer);
688 wl_list_remove(&es->buffer_destroy_listener.link);
694 if (weston_surface_is_mapped(es))
695 weston_surface_unmap(es);
699 buffer->busy_count++;
700 wl_signal_add(&es->buffer->resource.destroy_signal,
701 &es->buffer_destroy_listener);
703 if (es->geometry.width != buffer->width ||
704 es->geometry.height != buffer->height) {
705 undef_region(&es->input);
706 pixman_region32_fini(&es->opaque);
707 pixman_region32_init(&es->opaque);
711 glGenTextures(1, &es->texture);
712 glBindTexture(GL_TEXTURE_2D, es->texture);
713 glTexParameteri(GL_TEXTURE_2D,
714 GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
715 glTexParameteri(GL_TEXTURE_2D,
716 GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
717 es->shader = &ec->texture_shader;
719 glBindTexture(GL_TEXTURE_2D, es->texture);
722 if (wl_buffer_is_shm(buffer)) {
723 es->pitch = wl_shm_buffer_get_stride(buffer) / 4;
724 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
725 es->pitch, es->buffer->height, 0,
726 GL_BGRA_EXT, GL_UNSIGNED_BYTE, NULL);
728 if (es->image != EGL_NO_IMAGE_KHR)
729 ec->destroy_image(ec->display, es->image);
730 es->image = ec->create_image(ec->display, NULL,
731 EGL_WAYLAND_BUFFER_WL,
734 ec->image_target_texture_2d(GL_TEXTURE_2D, es->image);
736 es->pitch = buffer->width;
741 texture_region(struct weston_surface *es, pixman_region32_t *region)
743 struct weston_compositor *ec = es->compositor;
744 GLfloat *v, inv_width, inv_height;
746 pixman_box32_t *rectangles;
750 rectangles = pixman_region32_rectangles(region, &n);
751 v = wl_array_add(&ec->vertices, n * 16 * sizeof *v);
752 p = wl_array_add(&ec->indices, n * 6 * sizeof *p);
753 inv_width = 1.0 / es->pitch;
754 inv_height = 1.0 / es->geometry.height;
756 for (i = 0; i < n; i++, v += 16, p += 6) {
757 surface_from_global_float(es, rectangles[i].x1,
758 rectangles[i].y1, &sx, &sy);
759 v[ 0] = rectangles[i].x1;
760 v[ 1] = rectangles[i].y1;
761 v[ 2] = sx * inv_width;
762 v[ 3] = sy * inv_height;
764 surface_from_global_float(es, rectangles[i].x1,
765 rectangles[i].y2, &sx, &sy);
766 v[ 4] = rectangles[i].x1;
767 v[ 5] = rectangles[i].y2;
768 v[ 6] = sx * inv_width;
769 v[ 7] = sy * inv_height;
771 surface_from_global_float(es, rectangles[i].x2,
772 rectangles[i].y1, &sx, &sy);
773 v[ 8] = rectangles[i].x2;
774 v[ 9] = rectangles[i].y1;
775 v[10] = sx * inv_width;
776 v[11] = sy * inv_height;
778 surface_from_global_float(es, rectangles[i].x2,
779 rectangles[i].y2, &sx, &sy);
780 v[12] = rectangles[i].x2;
781 v[13] = rectangles[i].y2;
782 v[14] = sx * inv_width;
783 v[15] = sy * inv_height;
797 weston_surface_draw(struct weston_surface *es, struct weston_output *output,
798 pixman_region32_t *damage)
800 struct weston_compositor *ec = es->compositor;
802 pixman_region32_t repaint;
806 pixman_region32_init(&repaint);
807 pixman_region32_intersect(&repaint,
808 &es->transform.boundingbox, damage);
809 pixman_region32_subtract(&repaint, &repaint, &es->clip);
811 if (!pixman_region32_not_empty(&repaint))
814 glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
817 if (ec->current_shader != es->shader) {
818 glUseProgram(es->shader->program);
819 ec->current_shader = es->shader;
822 glUniformMatrix4fv(es->shader->proj_uniform,
823 1, GL_FALSE, output->matrix.d);
824 glUniform1i(es->shader->tex_uniform, 0);
825 glUniform4fv(es->shader->color_uniform, 1, es->color);
826 glUniform1f(es->shader->alpha_uniform, es->alpha / 255.0);
827 glUniform1f(es->shader->brightness_uniform, es->brightness / 255.0);
828 glUniform1f(es->shader->saturation_uniform, es->saturation / 255.0);
829 glUniform1f(es->shader->texwidth_uniform,
830 (GLfloat)es->geometry.width / es->pitch);
832 if (es->transform.enabled || output->zoom.active)
837 n = texture_region(es, &repaint);
839 glBindTexture(GL_TEXTURE_2D, es->texture);
840 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
841 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
843 v = ec->vertices.data;
844 glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[0]);
845 glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[2]);
846 glEnableVertexAttribArray(0);
847 glEnableVertexAttribArray(1);
849 glDrawElements(GL_TRIANGLES, n * 6, GL_UNSIGNED_INT, ec->indices.data);
851 glDisableVertexAttribArray(1);
852 glDisableVertexAttribArray(0);
854 ec->vertices.size = 0;
855 ec->indices.size = 0;
858 pixman_region32_fini(&repaint);
862 weston_surface_restack(struct weston_surface *surface, struct wl_list *below)
864 wl_list_remove(&surface->layer_link);
865 wl_list_insert(below, &surface->layer_link);
866 weston_surface_damage_below(surface);
867 weston_surface_damage(surface);
871 weston_compositor_damage_all(struct weston_compositor *compositor)
873 struct weston_output *output;
875 wl_list_for_each(output, &compositor->output_list, link)
876 weston_output_damage(output);
880 weston_buffer_post_release(struct wl_buffer *buffer)
882 if (--buffer->busy_count > 0)
885 assert(buffer->resource.client != NULL);
886 wl_resource_queue_event(&buffer->resource, WL_BUFFER_RELEASE);
890 weston_output_damage(struct weston_output *output)
892 struct weston_compositor *compositor = output->compositor;
894 pixman_region32_union(&compositor->damage,
895 &compositor->damage, &output->region);
896 weston_compositor_schedule_repaint(compositor);
900 fade_frame(struct weston_animation *animation,
901 struct weston_output *output, uint32_t msecs)
903 struct weston_compositor *compositor =
904 container_of(animation,
905 struct weston_compositor, fade.animation);
906 struct weston_surface *surface;
908 surface = compositor->fade.surface;
909 weston_spring_update(&compositor->fade.spring, msecs);
910 weston_surface_set_color(surface, 0.0, 0.0, 0.0,
911 compositor->fade.spring.current);
912 weston_surface_damage(surface);
914 if (weston_spring_done(&compositor->fade.spring)) {
915 compositor->fade.spring.current =
916 compositor->fade.spring.target;
917 wl_list_remove(&animation->link);
918 wl_list_init(&animation->link);
920 if (compositor->fade.spring.current < 0.001) {
921 destroy_surface(&surface->surface.resource);
922 compositor->fade.surface = NULL;
923 } else if (compositor->fade.spring.current > 0.999) {
924 compositor->state = WESTON_COMPOSITOR_SLEEPING;
925 wl_signal_emit(&compositor->lock_signal, compositor);
930 struct weston_frame_callback {
931 struct wl_resource resource;
936 weston_output_repaint(struct weston_output *output, int msecs)
938 struct weston_compositor *ec = output->compositor;
939 struct weston_surface *es;
940 struct weston_layer *layer;
941 struct weston_animation *animation, *next;
942 struct weston_frame_callback *cb, *cnext;
943 pixman_region32_t opaque, new_damage, output_damage;
944 int32_t width, height;
946 weston_compositor_update_drag_surfaces(ec);
948 width = output->current->width +
949 output->border.left + output->border.right;
950 height = output->current->height +
951 output->border.top + output->border.bottom;
952 glViewport(0, 0, width, height);
954 /* Rebuild the surface list and update surface transforms up front. */
955 wl_list_init(&ec->surface_list);
956 wl_list_for_each(layer, &ec->layer_list, link) {
957 wl_list_for_each(es, &layer->surface_list, layer_link) {
958 weston_surface_update_transform(es);
959 wl_list_insert(ec->surface_list.prev, &es->link);
963 if (output->assign_planes)
965 * This will queue flips for the fbs and sprites where
966 * applicable and clear the damage for those surfaces.
967 * The repaint loop below will repaint everything
970 output->assign_planes(output);
972 pixman_region32_init(&new_damage);
973 pixman_region32_init(&opaque);
975 wl_list_for_each(es, &ec->surface_list, link) {
976 pixman_region32_subtract(&es->damage, &es->damage, &opaque);
977 pixman_region32_union(&new_damage, &new_damage, &es->damage);
978 empty_region(&es->damage);
979 pixman_region32_copy(&es->clip, &opaque);
980 pixman_region32_union(&opaque, &opaque, &es->transform.opaque);
983 pixman_region32_union(&ec->damage, &ec->damage, &new_damage);
985 pixman_region32_init(&output_damage);
986 pixman_region32_union(&output_damage,
987 &ec->damage, &output->previous_damage);
988 pixman_region32_copy(&output->previous_damage, &ec->damage);
989 pixman_region32_intersect(&output_damage,
990 &output_damage, &output->region);
991 pixman_region32_subtract(&ec->damage, &ec->damage, &output->region);
993 pixman_region32_fini(&opaque);
994 pixman_region32_fini(&new_damage);
997 weston_output_update_matrix(output);
999 output->repaint(output, &output_damage);
1001 pixman_region32_fini(&output_damage);
1003 output->repaint_needed = 0;
1005 weston_compositor_repick(ec);
1006 wl_event_loop_dispatch(ec->input_loop, 0);
1008 wl_list_for_each_safe(cb, cnext, &output->frame_callback_list, link) {
1009 wl_callback_send_done(&cb->resource, msecs);
1010 wl_resource_destroy(&cb->resource);
1013 wl_list_for_each_safe(animation, next, &ec->animation_list, link)
1014 animation->frame(animation, output, msecs);
1018 weston_compositor_read_input(int fd, uint32_t mask, void *data)
1020 struct weston_compositor *compositor = data;
1022 wl_event_loop_dispatch(compositor->input_loop, 0);
1028 weston_output_finish_frame(struct weston_output *output, int msecs)
1030 struct weston_compositor *compositor = output->compositor;
1031 struct wl_event_loop *loop =
1032 wl_display_get_event_loop(compositor->wl_display);
1035 if (output->repaint_needed) {
1036 weston_output_repaint(output, msecs);
1040 output->repaint_scheduled = 0;
1041 if (compositor->input_loop_source)
1044 fd = wl_event_loop_get_fd(compositor->input_loop);
1045 compositor->input_loop_source =
1046 wl_event_loop_add_fd(loop, fd, WL_EVENT_READABLE,
1047 weston_compositor_read_input, compositor);
1051 idle_repaint(void *data)
1053 struct weston_output *output = data;
1055 weston_output_finish_frame(output, weston_compositor_get_time());
1059 weston_layer_init(struct weston_layer *layer, struct wl_list *below)
1061 wl_list_init(&layer->surface_list);
1062 wl_list_insert(below, &layer->link);
1066 weston_compositor_schedule_repaint(struct weston_compositor *compositor)
1068 struct weston_output *output;
1069 struct wl_event_loop *loop;
1071 if (compositor->state == WESTON_COMPOSITOR_SLEEPING)
1074 loop = wl_display_get_event_loop(compositor->wl_display);
1075 wl_list_for_each(output, &compositor->output_list, link) {
1076 output->repaint_needed = 1;
1077 if (output->repaint_scheduled)
1080 wl_event_loop_add_idle(loop, idle_repaint, output);
1081 output->repaint_scheduled = 1;
1084 if (compositor->input_loop_source) {
1085 wl_event_source_remove(compositor->input_loop_source);
1086 compositor->input_loop_source = NULL;
1091 weston_compositor_fade(struct weston_compositor *compositor, float tint)
1093 struct weston_surface *surface;
1096 done = weston_spring_done(&compositor->fade.spring);
1097 compositor->fade.spring.target = tint;
1098 if (weston_spring_done(&compositor->fade.spring))
1102 compositor->fade.spring.timestamp =
1103 weston_compositor_get_time();
1105 if (compositor->fade.surface == NULL) {
1106 surface = weston_surface_create(compositor);
1107 weston_surface_configure(surface, 0, 0, 8192, 8192);
1108 weston_surface_set_color(surface, 0.0, 0.0, 0.0, 0.0);
1109 wl_list_insert(&compositor->fade_layer.surface_list,
1110 &surface->layer_link);
1111 weston_surface_assign_output(surface);
1112 compositor->fade.surface = surface;
1113 pixman_region32_init(&surface->input);
1116 weston_surface_damage(compositor->fade.surface);
1117 if (wl_list_empty(&compositor->fade.animation.link))
1118 wl_list_insert(compositor->animation_list.prev,
1119 &compositor->fade.animation.link);
1123 surface_destroy(struct wl_client *client, struct wl_resource *resource)
1125 wl_resource_destroy(resource);
1128 static struct wl_resource *
1129 find_resource_for_client(struct wl_list *list, struct wl_client *client)
1131 struct wl_resource *r;
1133 wl_list_for_each(r, list, link) {
1134 if (r->client == client)
1142 weston_surface_update_output_mask(struct weston_surface *es, uint32_t mask)
1144 uint32_t different = es->output_mask ^ mask;
1145 uint32_t entered = mask & different;
1146 uint32_t left = es->output_mask & different;
1147 struct weston_output *output;
1148 struct wl_resource *resource;
1149 struct wl_client *client = es->surface.resource.client;
1151 if (es->surface.resource.client == NULL)
1156 es->output_mask = mask;
1157 wl_list_for_each(output, &es->compositor->output_list, link) {
1158 if (1 << output->id & different)
1160 find_resource_for_client(&output->resource_list,
1162 if (1 << output->id & entered)
1163 wl_surface_send_enter(&es->surface.resource, resource);
1164 if (1 << output->id & left)
1165 wl_surface_send_leave(&es->surface.resource, resource);
1170 weston_surface_assign_output(struct weston_surface *es)
1172 struct weston_compositor *ec = es->compositor;
1173 struct weston_output *output, *new_output;
1174 pixman_region32_t region;
1175 uint32_t max, area, mask;
1178 weston_surface_update_transform(es);
1183 pixman_region32_init(®ion);
1184 wl_list_for_each(output, &ec->output_list, link) {
1185 pixman_region32_intersect(®ion, &es->transform.boundingbox,
1188 e = pixman_region32_extents(®ion);
1189 area = (e->x2 - e->x1) * (e->y2 - e->y1);
1192 mask |= 1 << output->id;
1195 new_output = output;
1199 pixman_region32_fini(®ion);
1201 es->output = new_output;
1202 weston_surface_update_output_mask(es, mask);
1204 if (!wl_list_empty(&es->frame_callback_list)) {
1205 wl_list_insert_list(new_output->frame_callback_list.prev,
1206 &es->frame_callback_list);
1207 wl_list_init(&es->frame_callback_list);
1212 surface_attach(struct wl_client *client,
1213 struct wl_resource *resource,
1214 struct wl_resource *buffer_resource, int32_t sx, int32_t sy)
1216 struct weston_surface *es = resource->data;
1217 struct wl_buffer *buffer = NULL;
1219 if (buffer_resource)
1220 buffer = buffer_resource->data;
1222 weston_surface_attach(&es->surface, buffer);
1224 if (buffer && es->configure)
1225 es->configure(es, sx, sy);
1229 texture_set_subimage(struct weston_surface *surface,
1230 int32_t x, int32_t y, int32_t width, int32_t height)
1232 glBindTexture(GL_TEXTURE_2D, surface->texture);
1234 #ifdef GL_UNPACK_ROW_LENGTH
1235 /* Mesa does not define GL_EXT_unpack_subimage */
1237 if (surface->compositor->has_unpack_subimage) {
1238 glPixelStorei(GL_UNPACK_ROW_LENGTH, surface->pitch);
1239 glPixelStorei(GL_UNPACK_SKIP_PIXELS, x);
1240 glPixelStorei(GL_UNPACK_SKIP_ROWS, y);
1242 glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, width, height,
1243 GL_BGRA_EXT, GL_UNSIGNED_BYTE,
1244 wl_shm_buffer_get_data(surface->buffer));
1249 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
1250 surface->pitch, surface->buffer->height, 0,
1251 GL_BGRA_EXT, GL_UNSIGNED_BYTE,
1252 wl_shm_buffer_get_data(surface->buffer));
1256 surface_damage(struct wl_client *client,
1257 struct wl_resource *resource,
1258 int32_t x, int32_t y, int32_t width, int32_t height)
1260 struct weston_surface *es = resource->data;
1262 weston_surface_damage_rectangle(es, x, y, width, height);
1264 if (es->buffer && wl_buffer_is_shm(es->buffer))
1265 texture_set_subimage(es, x, y, width, height);
1269 destroy_frame_callback(struct wl_resource *resource)
1271 struct weston_frame_callback *cb = resource->data;
1273 wl_list_remove(&cb->link);
1278 surface_frame(struct wl_client *client,
1279 struct wl_resource *resource, uint32_t callback)
1281 struct weston_frame_callback *cb;
1282 struct weston_surface *es = resource->data;
1284 cb = malloc(sizeof *cb);
1286 wl_resource_post_no_memory(resource);
1290 cb->resource.object.interface = &wl_callback_interface;
1291 cb->resource.object.id = callback;
1292 cb->resource.destroy = destroy_frame_callback;
1293 cb->resource.client = client;
1294 cb->resource.data = cb;
1296 wl_client_add_resource(client, &cb->resource);
1299 wl_list_insert(es->output->frame_callback_list.prev,
1302 wl_list_insert(es->frame_callback_list.prev, &cb->link);
1307 surface_set_opaque_region(struct wl_client *client,
1308 struct wl_resource *resource,
1309 struct wl_resource *region_resource)
1311 struct weston_surface *surface = resource->data;
1312 struct weston_region *region;
1314 pixman_region32_fini(&surface->opaque);
1316 if (region_resource) {
1317 region = region_resource->data;
1318 pixman_region32_init_rect(&surface->opaque, 0, 0,
1319 surface->geometry.width,
1320 surface->geometry.height);
1321 pixman_region32_intersect(&surface->opaque,
1322 &surface->opaque, ®ion->region);
1324 pixman_region32_init(&surface->opaque);
1327 surface->geometry.dirty = 1;
1331 surface_set_input_region(struct wl_client *client,
1332 struct wl_resource *resource,
1333 struct wl_resource *region_resource)
1335 struct weston_surface *surface = resource->data;
1336 struct weston_region *region;
1338 if (region_resource) {
1339 region = region_resource->data;
1340 pixman_region32_init_rect(&surface->input, 0, 0,
1341 surface->geometry.width,
1342 surface->geometry.height);
1343 pixman_region32_intersect(&surface->input,
1344 &surface->input, ®ion->region);
1346 pixman_region32_init_rect(&surface->input, 0, 0,
1347 surface->geometry.width,
1348 surface->geometry.height);
1351 weston_compositor_schedule_repaint(surface->compositor);
1354 static const struct wl_surface_interface surface_interface = {
1359 surface_set_opaque_region,
1360 surface_set_input_region
1364 compositor_create_surface(struct wl_client *client,
1365 struct wl_resource *resource, uint32_t id)
1367 struct weston_compositor *ec = resource->data;
1368 struct weston_surface *surface;
1370 surface = weston_surface_create(ec);
1371 if (surface == NULL) {
1372 wl_resource_post_no_memory(resource);
1376 surface->surface.resource.destroy = destroy_surface;
1378 surface->surface.resource.object.id = id;
1379 surface->surface.resource.object.interface = &wl_surface_interface;
1380 surface->surface.resource.object.implementation =
1381 (void (**)(void)) &surface_interface;
1382 surface->surface.resource.data = surface;
1384 wl_client_add_resource(client, &surface->surface.resource);
1388 destroy_region(struct wl_resource *resource)
1390 struct weston_region *region =
1391 container_of(resource, struct weston_region, resource);
1393 pixman_region32_fini(®ion->region);
1398 region_destroy(struct wl_client *client, struct wl_resource *resource)
1400 wl_resource_destroy(resource);
1404 region_add(struct wl_client *client, struct wl_resource *resource,
1405 int32_t x, int32_t y, int32_t width, int32_t height)
1407 struct weston_region *region = resource->data;
1409 pixman_region32_union_rect(®ion->region, ®ion->region,
1410 x, y, width, height);
1414 region_subtract(struct wl_client *client, struct wl_resource *resource,
1415 int32_t x, int32_t y, int32_t width, int32_t height)
1417 struct weston_region *region = resource->data;
1418 pixman_region32_t rect;
1420 pixman_region32_init_rect(&rect, x, y, width, height);
1421 pixman_region32_subtract(®ion->region, ®ion->region, &rect);
1422 pixman_region32_fini(&rect);
1425 static const struct wl_region_interface region_interface = {
1432 compositor_create_region(struct wl_client *client,
1433 struct wl_resource *resource, uint32_t id)
1435 struct weston_region *region;
1437 region = malloc(sizeof *region);
1438 if (region == NULL) {
1439 wl_resource_post_no_memory(resource);
1443 region->resource.destroy = destroy_region;
1445 region->resource.object.id = id;
1446 region->resource.object.interface = &wl_region_interface;
1447 region->resource.object.implementation =
1448 (void (**)(void)) ®ion_interface;
1449 region->resource.data = region;
1451 pixman_region32_init(®ion->region);
1453 wl_client_add_resource(client, ®ion->resource);
1456 static const struct wl_compositor_interface compositor_interface = {
1457 compositor_create_surface,
1458 compositor_create_region
1462 weston_compositor_wake(struct weston_compositor *compositor)
1464 compositor->state = WESTON_COMPOSITOR_ACTIVE;
1465 weston_compositor_fade(compositor, 0.0);
1467 wl_event_source_timer_update(compositor->idle_source,
1468 compositor->idle_time * 1000);
1472 weston_compositor_dpms_on(struct weston_compositor *compositor)
1474 struct weston_output *output;
1476 wl_list_for_each(output, &compositor->output_list, link)
1477 if (output->set_dpms)
1478 output->set_dpms(output, WESTON_DPMS_ON);
1482 weston_compositor_activity(struct weston_compositor *compositor)
1484 if (compositor->state == WESTON_COMPOSITOR_ACTIVE) {
1485 weston_compositor_wake(compositor);
1487 weston_compositor_dpms_on(compositor);
1488 wl_signal_emit(&compositor->unlock_signal, compositor);
1493 weston_compositor_idle_inhibit(struct weston_compositor *compositor)
1495 weston_compositor_activity(compositor);
1496 compositor->idle_inhibit++;
1500 weston_compositor_idle_release(struct weston_compositor *compositor)
1502 compositor->idle_inhibit--;
1503 weston_compositor_activity(compositor);
1507 idle_handler(void *data)
1509 struct weston_compositor *compositor = data;
1511 if (compositor->idle_inhibit)
1514 weston_compositor_fade(compositor, 1.0);
1520 weston_input_update_drag_surface(struct wl_input_device *input_device,
1524 notify_motion(struct wl_input_device *device, uint32_t time, int x, int y)
1526 struct weston_output *output;
1527 const struct wl_pointer_grab_interface *interface;
1528 struct weston_input_device *wd = (struct weston_input_device *) device;
1529 struct weston_compositor *ec = wd->compositor;
1530 int x_valid = 0, y_valid = 0;
1531 int min_x = INT_MAX, min_y = INT_MAX, max_x = INT_MIN, max_y = INT_MIN;
1533 weston_compositor_activity(ec);
1535 wl_list_for_each(output, &ec->output_list, link) {
1536 if (output->x <= x && x < output->x + output->current->width)
1539 if (output->y <= y && y < output->y + output->current->height)
1542 /* FIXME: calculate this only on output addition/deletion */
1543 if (output->x < min_x)
1545 if (output->y < min_y)
1548 if (output->x + output->current->width > max_x)
1549 max_x = output->x + output->current->width - 1;
1550 if (output->y + output->current->height > max_y)
1551 max_y = output->y + output->current->height - 1;
1557 else if (x >= max_x)
1563 else if (y >= max_y)
1567 weston_input_update_drag_surface(device,
1568 x - device->x, y - device->y);
1573 wl_list_for_each(output, &ec->output_list, link)
1574 if (output->zoom.active &&
1575 pixman_region32_contains_point(&output->region, x, y, NULL))
1576 weston_output_update_zoom(output, x, y);
1578 weston_device_repick(device);
1579 interface = device->pointer_grab->interface;
1580 interface->motion(device->pointer_grab, time,
1581 device->pointer_grab->x, device->pointer_grab->y);
1584 weston_surface_set_position(wd->sprite,
1585 device->x - wd->hotspot_x,
1586 device->y - wd->hotspot_y);
1588 weston_compositor_schedule_repaint(ec);
1593 weston_surface_activate(struct weston_surface *surface,
1594 struct weston_input_device *device)
1596 struct weston_compositor *compositor = device->compositor;
1598 wl_input_device_set_keyboard_focus(&device->input_device,
1600 wl_data_device_set_keyboard_focus(&device->input_device);
1602 wl_signal_emit(&compositor->activate_signal, surface);
1606 notify_button(struct wl_input_device *device,
1607 uint32_t time, int32_t button, uint32_t state)
1609 struct weston_input_device *wd = (struct weston_input_device *) device;
1610 struct weston_compositor *compositor = wd->compositor;
1611 struct weston_surface *focus = (struct weston_surface *) device->pointer_focus;
1612 uint32_t serial = wl_display_next_serial(compositor->wl_display);
1615 if (compositor->ping_handler && focus)
1616 compositor->ping_handler(focus, serial);
1617 weston_compositor_idle_inhibit(compositor);
1618 if (device->button_count == 0) {
1619 device->grab_button = button;
1620 device->grab_time = time;
1621 device->grab_x = device->x;
1622 device->grab_y = device->y;
1624 device->button_count++;
1626 weston_compositor_idle_release(compositor);
1627 device->button_count--;
1630 weston_compositor_run_binding(compositor, wd, time, 0, button, 0, state);
1632 device->pointer_grab->interface->button(device->pointer_grab, time, button, state);
1634 if (device->button_count == 1)
1635 device->grab_serial =
1636 wl_display_get_serial(compositor->wl_display);
1640 notify_axis(struct wl_input_device *device,
1641 uint32_t time, uint32_t axis, int32_t value)
1643 struct weston_input_device *wd = (struct weston_input_device *) device;
1644 struct weston_compositor *compositor = wd->compositor;
1645 struct weston_surface *focus = (struct weston_surface *) device->pointer_focus;
1646 uint32_t serial = wl_display_next_serial(compositor->wl_display);
1648 if (compositor->ping_handler && focus)
1649 compositor->ping_handler(focus, serial);
1651 weston_compositor_activity(compositor);
1654 weston_compositor_run_binding(compositor, wd,
1655 time, 0, 0, axis, value);
1659 if (device->pointer_focus_resource)
1660 wl_resource_post_event(device->pointer_focus_resource,
1661 WL_INPUT_DEVICE_AXIS, time, axis, value);
1665 update_modifier_state(struct weston_input_device *device,
1666 uint32_t key, uint32_t state)
1673 modifier = MODIFIER_CTRL;
1678 modifier = MODIFIER_ALT;
1683 modifier = MODIFIER_SUPER;
1692 device->modifier_state |= modifier;
1694 device->modifier_state &= ~modifier;
1698 notify_key(struct wl_input_device *device,
1699 uint32_t time, uint32_t key, uint32_t state)
1701 struct weston_input_device *wd = (struct weston_input_device *) device;
1702 struct weston_compositor *compositor = wd->compositor;
1703 struct weston_surface *focus = (struct weston_surface *) device->pointer_focus;
1704 uint32_t serial = wl_display_next_serial(compositor->wl_display);
1708 if (compositor->ping_handler && focus)
1709 compositor->ping_handler(focus, serial);
1711 weston_compositor_idle_inhibit(compositor);
1712 device->grab_key = key;
1713 device->grab_time = time;
1715 weston_compositor_idle_release(compositor);
1718 update_modifier_state(wd, key, state);
1719 end = device->keys.data + device->keys.size;
1720 for (k = device->keys.data; k < end; k++) {
1724 device->keys.size = (void *) end - device->keys.data;
1726 k = wl_array_add(&device->keys, sizeof *k);
1730 if (device->keyboard_grab == &device->default_keyboard_grab)
1731 weston_compositor_run_binding(compositor, wd,
1732 time, key, 0, 0, state);
1734 device->keyboard_grab->interface->key(device->keyboard_grab,
1739 notify_pointer_focus(struct wl_input_device *device,
1740 struct weston_output *output, int32_t x, int32_t y)
1742 struct weston_input_device *wd = (struct weston_input_device *) device;
1743 struct weston_compositor *compositor = wd->compositor;
1746 weston_input_update_drag_surface(device, x - device->x,
1751 compositor->focus = 1;
1752 weston_compositor_repick(compositor);
1754 compositor->focus = 0;
1755 weston_compositor_repick(compositor);
1760 destroy_device_saved_kbd_focus(struct wl_listener *listener, void *data)
1762 struct weston_input_device *wd;
1764 wd = container_of(listener, struct weston_input_device,
1765 saved_kbd_focus_listener);
1767 wd->saved_kbd_focus = NULL;
1771 notify_keyboard_focus(struct wl_input_device *device, struct wl_array *keys)
1773 struct weston_input_device *wd =
1774 (struct weston_input_device *) device;
1775 struct weston_compositor *compositor = wd->compositor;
1776 struct wl_surface *surface;
1780 wl_array_copy(&wd->input_device.keys, keys);
1781 wd->modifier_state = 0;
1782 wl_array_for_each(k, &device->keys) {
1783 weston_compositor_idle_inhibit(compositor);
1784 update_modifier_state(wd, *k, 1);
1787 surface = wd->saved_kbd_focus;
1790 wl_list_remove(&wd->saved_kbd_focus_listener.link);
1791 wl_input_device_set_keyboard_focus(&wd->input_device,
1793 wd->saved_kbd_focus = NULL;
1796 wl_array_for_each(k, &device->keys)
1797 weston_compositor_idle_release(compositor);
1799 wd->modifier_state = 0;
1801 surface = wd->input_device.keyboard_focus;
1804 wd->saved_kbd_focus = surface;
1805 wd->saved_kbd_focus_listener.notify =
1806 destroy_device_saved_kbd_focus;
1807 wl_signal_add(&surface->resource.destroy_signal,
1808 &wd->saved_kbd_focus_listener);
1811 wl_input_device_set_keyboard_focus(&wd->input_device, NULL);
1812 /* FIXME: We really need keyboard grab cancel here to
1813 * let the grab shut down properly. As it is we leak
1815 wl_input_device_end_keyboard_grab(&wd->input_device);
1820 lose_touch_focus_resource(struct wl_listener *listener, void *data)
1822 struct weston_input_device *device =
1823 container_of(listener, struct weston_input_device,
1824 touch_focus_resource_listener);
1826 device->touch_focus_resource = NULL;
1830 lose_touch_focus(struct wl_listener *listener, void *data)
1832 struct weston_input_device *device =
1833 container_of(listener, struct weston_input_device,
1834 touch_focus_listener);
1836 device->touch_focus = NULL;
1840 touch_set_focus(struct weston_input_device *device,
1841 struct wl_surface *surface)
1843 struct wl_input_device *input_device = &device->input_device;
1844 struct wl_resource *resource;
1846 if (device->touch_focus == surface)
1851 find_resource_for_client(&input_device->resource_list,
1852 surface->resource.client);
1854 fprintf(stderr, "couldn't find resource\n");
1858 device->touch_focus_resource_listener.notify =
1859 lose_touch_focus_resource;
1860 wl_signal_add(&resource->destroy_signal,
1861 &device->touch_focus_resource_listener);
1862 device->touch_focus_listener.notify = lose_touch_focus;
1863 wl_signal_add(&surface->resource.destroy_signal,
1864 &device->touch_focus_listener);
1866 device->touch_focus = surface;
1867 device->touch_focus_resource = resource;
1869 if (device->touch_focus)
1870 wl_list_remove(&device->touch_focus_listener.link);
1871 if (device->touch_focus_resource)
1872 wl_list_remove(&device->touch_focus_resource_listener.link);
1873 device->touch_focus = NULL;
1874 device->touch_focus_resource = NULL;
1879 * notify_touch - emulates button touches and notifies surfaces accordingly.
1881 * It assumes always the correct cycle sequence until it gets here: touch_down
1882 * → touch_update → ... → touch_update → touch_end. The driver is responsible
1883 * for sending along such order.
1887 notify_touch(struct wl_input_device *device, uint32_t time, int touch_id,
1888 int x, int y, int touch_type)
1890 struct weston_input_device *wd = (struct weston_input_device *) device;
1891 struct weston_compositor *ec = wd->compositor;
1892 struct weston_surface *es;
1894 uint32_t serial = 0;
1896 switch (touch_type) {
1897 case WL_INPUT_DEVICE_TOUCH_DOWN:
1898 weston_compositor_idle_inhibit(ec);
1902 /* the first finger down picks the surface, and all further go
1903 * to that surface for the remainder of the touch session i.e.
1904 * until all touch points are up again. */
1905 if (wd->num_tp == 1) {
1906 es = weston_compositor_pick_surface(ec, x, y, &sx, &sy);
1907 touch_set_focus(wd, &es->surface);
1908 } else if (wd->touch_focus) {
1909 es = (struct weston_surface *) wd->touch_focus;
1910 weston_surface_from_global(es, x, y, &sx, &sy);
1913 if (wd->touch_focus_resource && wd->touch_focus)
1914 wl_input_device_send_touch_down(wd->touch_focus_resource,
1915 serial, time, &wd->touch_focus->resource,
1918 case WL_INPUT_DEVICE_TOUCH_MOTION:
1919 es = (struct weston_surface *) wd->touch_focus;
1923 weston_surface_from_global(es, x, y, &sx, &sy);
1924 if (wd->touch_focus_resource)
1925 wl_input_device_send_touch_motion(wd->touch_focus_resource,
1926 time, touch_id, sx, sy);
1928 case WL_INPUT_DEVICE_TOUCH_UP:
1929 weston_compositor_idle_release(ec);
1932 if (wd->touch_focus_resource)
1933 wl_input_device_send_touch_up(wd->touch_focus_resource,
1934 serial, time, touch_id);
1935 if (wd->num_tp == 0)
1936 touch_set_focus(wd, NULL);
1942 input_device_attach(struct wl_client *client,
1943 struct wl_resource *resource,
1945 struct wl_resource *buffer_resource, int32_t x, int32_t y)
1947 struct weston_input_device *device = resource->data;
1948 struct weston_compositor *compositor = device->compositor;
1949 struct wl_buffer *buffer = NULL;
1951 if (serial < device->input_device.pointer_focus_serial)
1953 if (device->input_device.pointer_focus == NULL)
1955 if (device->input_device.pointer_focus->resource.client != client)
1958 if (buffer_resource)
1959 buffer = buffer_resource->data;
1961 weston_surface_attach(&device->sprite->surface, buffer);
1962 empty_region(&device->sprite->input);
1967 if (!weston_surface_is_mapped(device->sprite)) {
1968 wl_list_insert(&compositor->cursor_layer.surface_list,
1969 &device->sprite->layer_link);
1970 weston_surface_assign_output(device->sprite);
1974 device->hotspot_x = x;
1975 device->hotspot_y = y;
1976 weston_surface_configure(device->sprite,
1977 device->input_device.x - device->hotspot_x,
1978 device->input_device.y - device->hotspot_y,
1979 buffer->width, buffer->height);
1981 surface_damage(NULL, &device->sprite->surface.resource,
1982 0, 0, buffer->width, buffer->height);
1985 static const struct wl_input_device_interface input_device_interface = {
1986 input_device_attach,
1990 handle_drag_surface_destroy(struct wl_listener *listener, void *data)
1992 struct weston_input_device *device;
1994 device = container_of(listener, struct weston_input_device,
1995 drag_surface_destroy_listener);
1997 device->drag_surface = NULL;
2000 static void unbind_resource(struct wl_resource *resource)
2002 wl_list_remove(&resource->link);
2007 bind_input_device(struct wl_client *client,
2008 void *data, uint32_t version, uint32_t id)
2010 struct wl_input_device *device = data;
2011 struct wl_resource *resource;
2013 resource = wl_client_add_object(client, &wl_input_device_interface,
2014 &input_device_interface, id, data);
2015 wl_list_insert(&device->resource_list, &resource->link);
2016 resource->destroy = unbind_resource;
2020 device_handle_new_drag_icon(struct wl_listener *listener, void *data)
2022 struct weston_input_device *device;
2024 device = container_of(listener, struct weston_input_device,
2025 new_drag_icon_listener);
2027 weston_input_update_drag_surface(&device->input_device, 0, 0);
2031 weston_input_device_init(struct weston_input_device *device,
2032 struct weston_compositor *ec)
2034 wl_input_device_init(&device->input_device);
2036 wl_display_add_global(ec->wl_display, &wl_input_device_interface,
2037 device, bind_input_device);
2039 device->sprite = weston_surface_create(ec);
2040 device->sprite->surface.resource.data = device->sprite;
2042 device->compositor = ec;
2043 device->hotspot_x = 16;
2044 device->hotspot_y = 16;
2045 device->modifier_state = 0;
2048 device->drag_surface_destroy_listener.notify =
2049 handle_drag_surface_destroy;
2051 wl_list_insert(ec->input_device_list.prev, &device->link);
2053 device->new_drag_icon_listener.notify = device_handle_new_drag_icon;
2054 wl_signal_add(&device->input_device.drag_icon_signal,
2055 &device->new_drag_icon_listener);
2059 weston_input_device_release(struct weston_input_device *device)
2061 wl_list_remove(&device->link);
2062 /* The global object is destroyed at wl_display_destroy() time. */
2065 destroy_surface(&device->sprite->surface.resource);
2067 wl_input_device_release(&device->input_device);
2071 drag_surface_configure(struct weston_surface *es, int32_t sx, int32_t sy)
2073 weston_surface_configure(es,
2074 es->geometry.x + sx, es->geometry.y + sy,
2075 es->buffer->width, es->buffer->height);
2079 device_setup_new_drag_surface(struct weston_input_device *device,
2080 struct weston_surface *surface)
2082 struct wl_input_device *input_device = &device->input_device;
2084 if (surface->configure) {
2085 wl_resource_post_error(&surface->surface.resource,
2086 WL_DISPLAY_ERROR_INVALID_OBJECT,
2087 "surface->configure already set");
2091 device->drag_surface = surface;
2093 weston_surface_set_position(device->drag_surface,
2094 input_device->x, input_device->y);
2096 surface->configure = drag_surface_configure;
2098 wl_signal_add(&surface->surface.resource.destroy_signal,
2099 &device->drag_surface_destroy_listener);
2105 device_release_drag_surface(struct weston_input_device *device)
2107 device->drag_surface->configure = NULL;
2108 undef_region(&device->drag_surface->input);
2109 wl_list_remove(&device->drag_surface_destroy_listener.link);
2110 device->drag_surface = NULL;
2114 device_map_drag_surface(struct weston_input_device *device)
2116 if (weston_surface_is_mapped(device->drag_surface) ||
2117 !device->drag_surface->buffer)
2120 wl_list_insert(&device->sprite->layer_link,
2121 &device->drag_surface->layer_link);
2122 weston_surface_assign_output(device->drag_surface);
2123 empty_region(&device->drag_surface->input);
2127 weston_input_update_drag_surface(struct wl_input_device *input_device,
2130 int surface_changed = 0;
2131 struct weston_input_device *device = (struct weston_input_device *)
2134 if (!device->drag_surface && !input_device->drag_surface)
2137 if (device->drag_surface && input_device->drag_surface &&
2138 (&device->drag_surface->surface.resource !=
2139 &input_device->drag_surface->resource))
2140 /* between calls to this funcion we got a new drag_surface */
2141 surface_changed = 1;
2143 if (!input_device->drag_surface || surface_changed) {
2144 device_release_drag_surface(device);
2145 if (!surface_changed)
2149 if (!device->drag_surface || surface_changed) {
2150 struct weston_surface *surface = (struct weston_surface *)
2151 input_device->drag_surface;
2152 if (!device_setup_new_drag_surface(device, surface))
2156 /* the client may not have attached a buffer to the drag surface
2157 * when we setup it up, so check if map is needed on every update */
2158 device_map_drag_surface(device);
2160 /* the client may have attached a buffer with a different size to
2161 * the drag surface, causing the input region to be reset */
2162 if (region_is_undefined(&device->drag_surface->input))
2163 empty_region(&device->drag_surface->input);
2168 weston_surface_set_position(device->drag_surface,
2169 device->drag_surface->geometry.x + dx,
2170 device->drag_surface->geometry.y + dy);
2174 weston_compositor_update_drag_surfaces(struct weston_compositor *compositor)
2176 weston_input_update_drag_surface(compositor->input_device, 0, 0);
2180 bind_output(struct wl_client *client,
2181 void *data, uint32_t version, uint32_t id)
2183 struct weston_output *output = data;
2184 struct weston_mode *mode;
2185 struct wl_resource *resource;
2187 resource = wl_client_add_object(client,
2188 &wl_output_interface, NULL, id, data);
2190 wl_list_insert(&output->resource_list, &resource->link);
2191 resource->destroy = unbind_resource;
2193 wl_output_send_geometry(resource,
2199 output->make, output->model);
2201 wl_list_for_each (mode, &output->mode_list, link) {
2202 wl_output_send_mode(resource,
2210 static const char vertex_shader[] =
2211 "uniform mat4 proj;\n"
2212 "attribute vec2 position;\n"
2213 "attribute vec2 texcoord;\n"
2214 "varying vec2 v_texcoord;\n"
2217 " gl_Position = proj * vec4(position, 0.0, 1.0);\n"
2218 " v_texcoord = texcoord;\n"
2221 static const char texture_fragment_shader[] =
2222 "precision mediump float;\n"
2223 "varying vec2 v_texcoord;\n"
2224 "uniform sampler2D tex;\n"
2225 "uniform float alpha;\n"
2226 "uniform float bright;\n"
2227 "uniform float saturation;\n"
2228 "uniform float texwidth;\n"
2231 " if (v_texcoord.x < 0.0 || v_texcoord.x > texwidth ||\n"
2232 " v_texcoord.y < 0.0 || v_texcoord.y > 1.0)\n"
2234 " gl_FragColor = texture2D(tex, v_texcoord)\n;"
2235 " float gray = dot(gl_FragColor.rgb, vec3(0.299, 0.587, 0.114));\n"
2236 " vec3 range = (gl_FragColor.rgb - vec3 (gray, gray, gray)) * saturation;\n"
2237 " gl_FragColor = vec4(vec3(gray + range), gl_FragColor.a);\n"
2238 " gl_FragColor = vec4(vec3(bright, bright, bright) * gl_FragColor.rgb, gl_FragColor.a);\n"
2239 " gl_FragColor = alpha * gl_FragColor;\n"
2242 static const char solid_fragment_shader[] =
2243 "precision mediump float;\n"
2244 "uniform vec4 color;\n"
2245 "uniform float alpha;\n"
2248 " gl_FragColor = alpha * color\n;"
2252 compile_shader(GLenum type, const char *source)
2258 s = glCreateShader(type);
2259 glShaderSource(s, 1, &source, NULL);
2261 glGetShaderiv(s, GL_COMPILE_STATUS, &status);
2263 glGetShaderInfoLog(s, sizeof msg, NULL, msg);
2264 fprintf(stderr, "shader info: %s\n", msg);
2272 weston_shader_init(struct weston_shader *shader,
2273 const char *vertex_source, const char *fragment_source)
2278 shader->vertex_shader =
2279 compile_shader(GL_VERTEX_SHADER, vertex_source);
2280 shader->fragment_shader =
2281 compile_shader(GL_FRAGMENT_SHADER, fragment_source);
2283 shader->program = glCreateProgram();
2284 glAttachShader(shader->program, shader->vertex_shader);
2285 glAttachShader(shader->program, shader->fragment_shader);
2286 glBindAttribLocation(shader->program, 0, "position");
2287 glBindAttribLocation(shader->program, 1, "texcoord");
2289 glLinkProgram(shader->program);
2290 glGetProgramiv(shader->program, GL_LINK_STATUS, &status);
2292 glGetProgramInfoLog(shader->program, sizeof msg, NULL, msg);
2293 fprintf(stderr, "link info: %s\n", msg);
2297 shader->proj_uniform = glGetUniformLocation(shader->program, "proj");
2298 shader->tex_uniform = glGetUniformLocation(shader->program, "tex");
2299 shader->alpha_uniform = glGetUniformLocation(shader->program, "alpha");
2300 shader->brightness_uniform = glGetUniformLocation(shader->program, "bright");
2301 shader->saturation_uniform = glGetUniformLocation(shader->program, "saturation");
2302 shader->color_uniform = glGetUniformLocation(shader->program, "color");
2303 shader->texwidth_uniform = glGetUniformLocation(shader->program,
2310 weston_output_destroy(struct weston_output *output)
2312 struct weston_compositor *c = output->compositor;
2314 pixman_region32_fini(&output->region);
2315 pixman_region32_fini(&output->previous_damage);
2316 output->compositor->output_id_pool &= ~(1 << output->id);
2318 wl_display_remove_global(c->wl_display, output->global);
2322 weston_output_update_zoom(struct weston_output *output, int x, int y)
2326 if (output->zoom.level <= 0)
2329 output->zoom.magnification = 1 / output->zoom.level;
2330 ratio = 1 - (1 / output->zoom.magnification);
2332 output->zoom.trans_x = (((float)(x - output->x) / output->current->width) * (ratio * 2)) - ratio;
2333 output->zoom.trans_y = (((float)(y - output->y) / output->current->height) * (ratio * 2)) - ratio;
2336 weston_output_damage(output);
2340 weston_output_update_matrix(struct weston_output *output)
2343 struct weston_matrix camera;
2344 struct weston_matrix modelview;
2346 weston_matrix_init(&output->matrix);
2347 weston_matrix_translate(&output->matrix,
2348 -(output->x + (output->border.right + output->current->width - output->border.left) / 2.0),
2349 -(output->y + (output->border.bottom + output->current->height - output->border.top) / 2.0), 0);
2351 flip = (output->flags & WL_OUTPUT_FLIPPED) ? -1 : 1;
2352 weston_matrix_scale(&output->matrix,
2353 2.0 / (output->current->width + output->border.left + output->border.right),
2354 flip * 2.0 / (output->current->height + output->border.top + output->border.bottom), 1);
2355 if (output->zoom.active) {
2356 weston_matrix_init(&camera);
2357 weston_matrix_init(&modelview);
2358 weston_matrix_translate(&camera, output->zoom.trans_x, flip * output->zoom.trans_y, 0);
2359 weston_matrix_invert(&modelview, &camera);
2360 weston_matrix_scale(&modelview, output->zoom.magnification, output->zoom.magnification, 1.0);
2361 weston_matrix_multiply(&output->matrix, &modelview);
2368 weston_output_move(struct weston_output *output, int x, int y)
2373 pixman_region32_init(&output->previous_damage);
2374 pixman_region32_init_rect(&output->region, x, y,
2375 output->current->width,
2376 output->current->height);
2380 weston_output_init(struct weston_output *output, struct weston_compositor *c,
2381 int x, int y, int width, int height, uint32_t flags)
2383 output->compositor = c;
2386 output->border.top = 0;
2387 output->border.bottom = 0;
2388 output->border.left = 0;
2389 output->border.right = 0;
2390 output->mm_width = width;
2391 output->mm_height = height;
2393 wl_list_init(&output->read_pixels_list);
2395 output->zoom.active = 0;
2396 output->zoom.increment = 0.05;
2397 output->zoom.level = 1.0;
2398 output->zoom.magnification = 1.0;
2399 output->zoom.trans_x = 0.0;
2400 output->zoom.trans_y = 0.0;
2402 output->flags = flags;
2403 weston_output_move(output, x, y);
2404 weston_output_damage(output);
2406 wl_list_init(&output->frame_callback_list);
2407 wl_list_init(&output->resource_list);
2409 output->id = ffs(~output->compositor->output_id_pool) - 1;
2410 output->compositor->output_id_pool |= 1 << output->id;
2413 wl_display_add_global(c->wl_display, &wl_output_interface,
2414 output, bind_output);
2418 weston_output_do_read_pixels(struct weston_output *output)
2420 struct weston_read_pixels *r, *next;
2422 glPixelStorei(GL_PACK_ALIGNMENT, 1);
2423 wl_list_for_each_safe(r, next, &output->read_pixels_list, link) {
2424 glReadPixels(r->x, r->y, r->width, r->height,
2425 output->compositor->read_format,
2426 GL_UNSIGNED_BYTE, r->data);
2432 compositor_bind(struct wl_client *client,
2433 void *data, uint32_t version, uint32_t id)
2435 struct weston_compositor *compositor = data;
2437 wl_client_add_object(client, &wl_compositor_interface,
2438 &compositor_interface, id, compositor);
2442 weston_compositor_init(struct weston_compositor *ec, struct wl_display *display)
2444 struct wl_event_loop *loop;
2445 const char *extensions;
2447 ec->wl_display = display;
2448 wl_signal_init(&ec->destroy_signal);
2449 wl_signal_init(&ec->activate_signal);
2450 wl_signal_init(&ec->lock_signal);
2451 wl_signal_init(&ec->unlock_signal);
2452 ec->launcher_sock = weston_environment_get_fd("WESTON_LAUNCHER_SOCK");
2454 ec->output_id_pool = 0;
2456 if (!wl_display_add_global(display, &wl_compositor_interface,
2457 ec, compositor_bind))
2460 wl_display_init_shm(display);
2462 ec->image_target_texture_2d =
2463 (void *) eglGetProcAddress("glEGLImageTargetTexture2DOES");
2464 ec->image_target_renderbuffer_storage = (void *)
2465 eglGetProcAddress("glEGLImageTargetRenderbufferStorageOES");
2466 ec->create_image = (void *) eglGetProcAddress("eglCreateImageKHR");
2467 ec->destroy_image = (void *) eglGetProcAddress("eglDestroyImageKHR");
2469 (void *) eglGetProcAddress("eglBindWaylandDisplayWL");
2470 ec->unbind_display =
2471 (void *) eglGetProcAddress("eglUnbindWaylandDisplayWL");
2473 extensions = (const char *) glGetString(GL_EXTENSIONS);
2475 fprintf(stderr, "Retrieving GL extension string failed.\n");
2479 if (!strstr(extensions, "GL_EXT_texture_format_BGRA8888")) {
2481 "GL_EXT_texture_format_BGRA8888 not available\n");
2485 if (strstr(extensions, "GL_EXT_read_format_bgra"))
2486 ec->read_format = GL_BGRA_EXT;
2488 ec->read_format = GL_RGBA;
2490 if (strstr(extensions, "GL_EXT_unpack_subimage"))
2491 ec->has_unpack_subimage = 1;
2494 (const char *) eglQueryString(ec->display, EGL_EXTENSIONS);
2496 fprintf(stderr, "Retrieving EGL extension string failed.\n");
2500 if (strstr(extensions, "EGL_WL_bind_wayland_display"))
2501 ec->has_bind_display = 1;
2502 if (ec->has_bind_display)
2503 ec->bind_display(ec->display, ec->wl_display);
2505 wl_list_init(&ec->surface_list);
2506 wl_list_init(&ec->layer_list);
2507 wl_list_init(&ec->input_device_list);
2508 wl_list_init(&ec->output_list);
2509 wl_list_init(&ec->binding_list);
2510 wl_list_init(&ec->animation_list);
2511 weston_spring_init(&ec->fade.spring, 30.0, 1.0, 1.0);
2512 ec->fade.animation.frame = fade_frame;
2513 wl_list_init(&ec->fade.animation.link);
2515 weston_layer_init(&ec->fade_layer, &ec->layer_list);
2516 weston_layer_init(&ec->cursor_layer, &ec->fade_layer.link);
2518 screenshooter_create(ec);
2520 ec->ping_handler = NULL;
2522 wl_data_device_manager_init(ec->wl_display);
2524 glActiveTexture(GL_TEXTURE0);
2526 if (weston_shader_init(&ec->texture_shader,
2527 vertex_shader, texture_fragment_shader) < 0)
2529 if (weston_shader_init(&ec->solid_shader,
2530 vertex_shader, solid_fragment_shader) < 0)
2533 loop = wl_display_get_event_loop(ec->wl_display);
2534 ec->idle_source = wl_event_loop_add_timer(loop, idle_handler, ec);
2535 wl_event_source_timer_update(ec->idle_source, ec->idle_time * 1000);
2537 ec->input_loop = wl_event_loop_create();
2539 weston_compositor_schedule_repaint(ec);
2545 weston_compositor_shutdown(struct weston_compositor *ec)
2547 struct weston_output *output, *next;
2549 wl_event_source_remove(ec->idle_source);
2550 if (ec->input_loop_source)
2551 wl_event_source_remove(ec->input_loop_source);
2553 /* Destroy all outputs associated with this compositor */
2554 wl_list_for_each_safe(output, next, &ec->output_list, link)
2555 output->destroy(output);
2557 weston_binding_list_destroy_all(&ec->binding_list);
2559 wl_array_release(&ec->vertices);
2560 wl_array_release(&ec->indices);
2562 wl_event_loop_destroy(ec->input_loop);
2565 static int on_term_signal(int signal_number, void *data)
2567 struct wl_display *display = data;
2569 fprintf(stderr, "caught signal %d\n", signal_number);
2570 wl_display_terminate(display);
2576 on_segv_signal(int s, siginfo_t *siginfo, void *context)
2582 fprintf(stderr, "caught segv\n");
2584 count = backtrace(buffer, ARRAY_LENGTH(buffer));
2585 for (i = 0; i < count; i++) {
2586 dladdr(buffer[i], &info);
2587 fprintf(stderr, " [%016lx] %s (%s)\n",
2589 info.dli_sname ? info.dli_sname : "--",
2593 longjmp(segv_jmp_buf, 1);
2598 load_module(const char *name, const char *entrypoint, void **handle)
2600 char path[PATH_MAX];
2601 void *module, *init;
2604 snprintf(path, sizeof path, MODULEDIR "/%s", name);
2606 snprintf(path, sizeof path, "%s", name);
2608 module = dlopen(path, RTLD_LAZY);
2611 "failed to load module '%s': %s\n", path, dlerror());
2615 init = dlsym(module, entrypoint);
2618 "failed to lookup init function in '%s': %s\n",
2626 int main(int argc, char *argv[])
2628 struct wl_display *display;
2629 struct weston_compositor *ec;
2630 struct wl_event_source *signals[4];
2631 struct wl_event_loop *loop;
2632 struct sigaction segv_action;
2633 void *shell_module, *backend_module, *xserver_module;
2634 int (*module_init)(struct weston_compositor *ec);
2635 struct weston_compositor
2636 *(*backend_init)(struct wl_display *display,
2637 int argc, char *argv[]);
2639 char *backend = NULL;
2641 char *module = NULL;
2642 int32_t idle_time = 300;
2643 int32_t xserver = 0;
2644 char *socket_name = NULL;
2647 const struct config_key shell_config_keys[] = {
2648 { "type", CONFIG_KEY_STRING, &shell },
2651 const struct config_section cs[] = {
2653 shell_config_keys, ARRAY_LENGTH(shell_config_keys) },
2656 const struct weston_option core_options[] = {
2657 { WESTON_OPTION_STRING, "backend", 'B', &backend },
2658 { WESTON_OPTION_STRING, "socket", 'S', &socket_name },
2659 { WESTON_OPTION_INTEGER, "idle-time", 'i', &idle_time },
2660 { WESTON_OPTION_BOOLEAN, "xserver", 0, &xserver },
2661 { WESTON_OPTION_STRING, "module", 0, &module },
2664 argc = parse_options(core_options,
2665 ARRAY_LENGTH(core_options), argc, argv);
2667 display = wl_display_create();
2669 loop = wl_display_get_event_loop(display);
2670 signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
2672 signals[1] = wl_event_loop_add_signal(loop, SIGINT, on_term_signal,
2674 signals[2] = wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal,
2677 wl_list_init(&child_process_list);
2678 signals[3] = wl_event_loop_add_signal(loop, SIGCHLD, sigchld_handler,
2681 segv_action.sa_flags = SA_SIGINFO | SA_RESETHAND;
2682 segv_action.sa_sigaction = on_segv_signal;
2683 sigemptyset(&segv_action.sa_mask);
2684 sigaction(SIGSEGV, &segv_action, NULL);
2687 if (getenv("WAYLAND_DISPLAY"))
2688 backend = "wayland-backend.so";
2689 else if (getenv("DISPLAY"))
2690 backend = "x11-backend.so";
2691 else if (getenv("OPENWFD"))
2692 backend = "openwfd-backend.so";
2694 backend = "drm-backend.so";
2697 config_file = config_file_path("weston.ini");
2698 parse_config_file(config_file, cs, ARRAY_LENGTH(cs), shell);
2701 backend_init = load_module(backend, "backend_init", &backend_module);
2705 ec = backend_init(display, argc, argv);
2707 fprintf(stderr, "failed to create compositor\n");
2711 for (i = 1; argv[i]; i++)
2712 fprintf(stderr, "unhandled option: %s\n", argv[i]);
2716 ec->option_idle_time = idle_time;
2717 ec->idle_time = idle_time;
2721 module_init = load_module("xserver-launcher.so",
2722 "weston_xserver_init",
2724 if (module_init && module_init(ec) < 0)
2728 shell = "desktop-shell.so";
2729 module_init = load_module(shell, "shell_init", &shell_module);
2730 if (!module_init || module_init(ec) < 0)
2736 module_init = load_module(module, "module_init", NULL);
2737 if (module_init && module_init(ec) < 0)
2740 if (wl_display_add_socket(display, socket_name)) {
2741 fprintf(stderr, "failed to add socket: %m\n");
2745 weston_compositor_dpms_on(ec);
2746 weston_compositor_wake(ec);
2747 if (setjmp(segv_jmp_buf) == 0)
2748 wl_display_run(display);
2750 /* prevent further rendering while shutting down */
2751 ec->state = WESTON_COMPOSITOR_SLEEPING;
2753 wl_signal_emit(&ec->destroy_signal, ec);
2755 if (ec->has_bind_display)
2756 ec->unbind_display(ec->display, display);
2758 for (i = ARRAY_LENGTH(signals); i;)
2759 wl_event_source_remove(signals[--i]);
2762 wl_display_destroy(display);