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_watch_process(struct weston_process *process)
85 wl_list_insert(&child_process_list, &process->link);
89 child_client_exec(int sockfd, const char *path)
95 /* do not give our signal mask to the new process */
97 sigprocmask(SIG_UNBLOCK, &allsigs, NULL);
99 /* Launch clients as the user. */
102 /* SOCK_CLOEXEC closes both ends, so we dup the fd to get a
103 * non-CLOEXEC fd to pass through exec. */
104 clientfd = dup(sockfd);
105 if (clientfd == -1) {
106 fprintf(stderr, "compositor: dup failed: %m\n");
110 snprintf(s, sizeof s, "%d", clientfd);
111 setenv("WAYLAND_SOCKET", s, 1);
113 if (execl(path, path, NULL) < 0)
114 fprintf(stderr, "compositor: executing '%s' failed: %m\n",
118 WL_EXPORT struct wl_client *
119 weston_client_launch(struct weston_compositor *compositor,
120 struct weston_process *proc,
122 weston_process_cleanup_func_t cleanup)
126 struct wl_client *client;
128 if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, sv) < 0) {
129 fprintf(stderr, "weston_client_launch: "
130 "socketpair failed while launching '%s': %m\n",
139 fprintf(stderr, "weston_client_launch: "
140 "fork failed while launching '%s': %m\n", path);
145 child_client_exec(sv[1], path);
151 client = wl_client_create(compositor->wl_display, sv[0]);
154 fprintf(stderr, "weston_client_launch: "
155 "wl_client_create failed while launching '%s'.\n",
161 proc->cleanup = cleanup;
162 weston_watch_process(proc);
168 surface_handle_buffer_destroy(struct wl_listener *listener, void *data)
170 struct weston_surface *es =
171 container_of(listener, struct weston_surface,
172 buffer_destroy_listener);
177 static const pixman_region32_data_t undef_region_data;
180 undef_region(pixman_region32_t *region)
182 pixman_region32_fini(region);
183 region->data = (pixman_region32_data_t *) &undef_region_data;
187 region_is_undefined(pixman_region32_t *region)
189 return region->data == &undef_region_data;
193 empty_region(pixman_region32_t *region)
195 if (!region_is_undefined(region))
196 pixman_region32_fini(region);
198 pixman_region32_init(region);
201 WL_EXPORT struct weston_surface *
202 weston_surface_create(struct weston_compositor *compositor)
204 struct weston_surface *surface;
206 surface = calloc(1, sizeof *surface);
210 wl_signal_init(&surface->surface.resource.destroy_signal);
212 wl_list_init(&surface->link);
213 wl_list_init(&surface->layer_link);
215 surface->surface.resource.client = NULL;
217 surface->compositor = compositor;
218 surface->image = EGL_NO_IMAGE_KHR;
219 surface->alpha = 255;
222 surface->buffer = NULL;
223 surface->output = NULL;
225 pixman_region32_init(&surface->damage);
226 pixman_region32_init(&surface->opaque);
227 pixman_region32_init(&surface->clip);
228 undef_region(&surface->input);
229 pixman_region32_init(&surface->transform.opaque);
230 wl_list_init(&surface->frame_callback_list);
232 surface->buffer_destroy_listener.notify =
233 surface_handle_buffer_destroy;
235 wl_list_init(&surface->geometry.transformation_list);
236 wl_list_insert(&surface->geometry.transformation_list,
237 &surface->transform.position.link);
238 weston_matrix_init(&surface->transform.position.matrix);
239 pixman_region32_init(&surface->transform.boundingbox);
240 surface->geometry.dirty = 1;
246 weston_surface_set_color(struct weston_surface *surface,
247 GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha)
249 surface->color[0] = red;
250 surface->color[1] = green;
251 surface->color[2] = blue;
252 surface->color[3] = alpha;
253 surface->shader = &surface->compositor->solid_shader;
257 surface_to_global_float(struct weston_surface *surface,
258 int32_t sx, int32_t sy, GLfloat *x, GLfloat *y)
260 if (surface->transform.enabled) {
261 struct weston_vector v = { { sx, sy, 0.0f, 1.0f } };
263 weston_matrix_transform(&surface->transform.matrix, &v);
265 if (fabsf(v.f[3]) < 1e-6) {
266 fprintf(stderr, "warning: numerical instability in "
267 "weston_surface_to_global(), divisor = %g\n",
274 *x = v.f[0] / v.f[3];
275 *y = v.f[1] / v.f[3];
277 *x = sx + surface->geometry.x;
278 *y = sy + surface->geometry.y;
283 weston_surface_damage_below(struct weston_surface *surface)
285 struct weston_compositor *compositor = surface->compositor;
286 pixman_region32_t damage;
288 pixman_region32_init(&damage);
289 pixman_region32_subtract(&damage, &surface->transform.boundingbox,
291 pixman_region32_union(&compositor->damage,
292 &compositor->damage, &damage);
293 pixman_region32_fini(&damage);
297 surface_compute_bbox(struct weston_surface *surface, int32_t sx, int32_t sy,
298 int32_t width, int32_t height,
299 pixman_region32_t *bbox)
301 GLfloat min_x = HUGE_VALF, min_y = HUGE_VALF;
302 GLfloat max_x = -HUGE_VALF, max_y = -HUGE_VALF;
307 { sx + width, sy + height }
309 GLfloat int_x, int_y;
312 for (i = 0; i < 4; ++i) {
314 surface_to_global_float(surface, s[i][0], s[i][1], &x, &y);
325 int_x = floorf(min_x);
326 int_y = floorf(min_y);
327 pixman_region32_init_rect(bbox, int_x, int_y,
328 ceilf(max_x) - int_x, ceilf(max_y) - int_y);
332 weston_surface_update_transform_disable(struct weston_surface *surface)
334 surface->transform.enabled = 0;
336 /* round off fractions when not transformed */
337 surface->geometry.x = roundf(surface->geometry.x);
338 surface->geometry.y = roundf(surface->geometry.y);
340 pixman_region32_init_rect(&surface->transform.boundingbox,
343 surface->geometry.width,
344 surface->geometry.height);
346 if (surface->alpha == 255) {
347 pixman_region32_copy(&surface->transform.opaque,
349 pixman_region32_translate(&surface->transform.opaque,
351 surface->geometry.y);
356 weston_surface_update_transform_enable(struct weston_surface *surface)
358 struct weston_matrix *matrix = &surface->transform.matrix;
359 struct weston_matrix *inverse = &surface->transform.inverse;
360 struct weston_transform *tform;
362 surface->transform.enabled = 1;
364 /* Otherwise identity matrix, but with x and y translation. */
365 surface->transform.position.matrix.d[12] = surface->geometry.x;
366 surface->transform.position.matrix.d[13] = surface->geometry.y;
368 weston_matrix_init(matrix);
369 wl_list_for_each(tform, &surface->geometry.transformation_list, link)
370 weston_matrix_multiply(matrix, &tform->matrix);
372 if (weston_matrix_invert(inverse, matrix) < 0) {
373 /* Oops, bad total transformation, not invertible */
374 fprintf(stderr, "error: weston_surface %p"
375 " transformation not invertible.\n", surface);
379 surface_compute_bbox(surface, 0, 0, surface->geometry.width,
380 surface->geometry.height,
381 &surface->transform.boundingbox);
387 weston_surface_update_transform(struct weston_surface *surface)
389 if (!surface->geometry.dirty)
392 surface->geometry.dirty = 0;
394 weston_surface_damage_below(surface);
396 pixman_region32_fini(&surface->transform.boundingbox);
397 pixman_region32_fini(&surface->transform.opaque);
398 pixman_region32_init(&surface->transform.opaque);
400 if (region_is_undefined(&surface->input))
401 pixman_region32_init_rect(&surface->input, 0, 0,
402 surface->geometry.width,
403 surface->geometry.height);
405 /* transform.position is always in transformation_list */
406 if (surface->geometry.transformation_list.next ==
407 &surface->transform.position.link &&
408 surface->geometry.transformation_list.prev ==
409 &surface->transform.position.link) {
410 weston_surface_update_transform_disable(surface);
412 if (weston_surface_update_transform_enable(surface) < 0)
413 weston_surface_update_transform_disable(surface);
416 /* weston_surface_damage() without update */
417 pixman_region32_union(&surface->damage, &surface->damage,
418 &surface->transform.boundingbox);
420 if (weston_surface_is_mapped(surface))
421 weston_surface_assign_output(surface);
423 weston_compositor_schedule_repaint(surface->compositor);
427 weston_surface_to_global_float(struct weston_surface *surface,
428 int32_t sx, int32_t sy, GLfloat *x, GLfloat *y)
430 weston_surface_update_transform(surface);
432 surface_to_global_float(surface, sx, sy, x, y);
436 weston_surface_to_global(struct weston_surface *surface,
437 int32_t sx, int32_t sy, int32_t *x, int32_t *y)
441 weston_surface_to_global_float(surface, sx, sy, &xf, &yf);
447 surface_from_global_float(struct weston_surface *surface,
448 int32_t x, int32_t y, GLfloat *sx, GLfloat *sy)
450 if (surface->transform.enabled) {
451 struct weston_vector v = { { x, y, 0.0f, 1.0f } };
453 weston_matrix_transform(&surface->transform.inverse, &v);
455 if (fabsf(v.f[3]) < 1e-6) {
456 fprintf(stderr, "warning: numerical instability in "
457 "weston_surface_from_global(), divisor = %g\n",
464 *sx = v.f[0] / v.f[3];
465 *sy = v.f[1] / v.f[3];
467 *sx = x - surface->geometry.x;
468 *sy = y - surface->geometry.y;
473 weston_surface_from_global(struct weston_surface *surface,
474 int32_t x, int32_t y, int32_t *sx, int32_t *sy)
478 weston_surface_update_transform(surface);
480 surface_from_global_float(surface, x, y, &sxf, &syf);
486 weston_surface_damage_rectangle(struct weston_surface *surface,
487 int32_t sx, int32_t sy,
488 int32_t width, int32_t height)
490 weston_surface_update_transform(surface);
492 if (surface->transform.enabled) {
493 pixman_region32_t box;
494 surface_compute_bbox(surface, sx, sy, width, height, &box);
495 pixman_region32_union(&surface->damage, &surface->damage,
497 pixman_region32_fini(&box);
499 pixman_region32_union_rect(&surface->damage, &surface->damage,
500 surface->geometry.x + sx,
501 surface->geometry.y + sy,
505 weston_compositor_schedule_repaint(surface->compositor);
509 weston_surface_damage(struct weston_surface *surface)
511 weston_surface_update_transform(surface);
513 pixman_region32_union(&surface->damage, &surface->damage,
514 &surface->transform.boundingbox);
516 weston_compositor_schedule_repaint(surface->compositor);
520 weston_surface_configure(struct weston_surface *surface,
521 GLfloat x, GLfloat y, int width, int height)
523 surface->geometry.x = x;
524 surface->geometry.y = y;
525 surface->geometry.width = width;
526 surface->geometry.height = height;
527 surface->geometry.dirty = 1;
531 weston_surface_set_position(struct weston_surface *surface,
532 GLfloat x, GLfloat y)
534 surface->geometry.x = x;
535 surface->geometry.y = y;
536 surface->geometry.dirty = 1;
540 weston_surface_is_mapped(struct weston_surface *surface)
549 weston_compositor_get_time(void)
553 gettimeofday(&tv, NULL);
555 return tv.tv_sec * 1000 + tv.tv_usec / 1000;
558 static struct weston_surface *
559 weston_compositor_pick_surface(struct weston_compositor *compositor,
560 int32_t x, int32_t y, int32_t *sx, int32_t *sy)
562 struct weston_surface *surface;
564 wl_list_for_each(surface, &compositor->surface_list, link) {
565 weston_surface_from_global(surface, x, y, sx, sy);
566 if (pixman_region32_contains_point(&surface->input,
575 weston_device_repick(struct wl_input_device *device)
577 struct weston_input_device *wd = (struct weston_input_device *) device;
578 const struct wl_pointer_grab_interface *interface;
579 struct weston_surface *surface, *focus;
581 surface = weston_compositor_pick_surface(wd->compositor,
582 device->x, device->y,
586 if (&surface->surface != device->current) {
587 interface = device->pointer_grab->interface;
588 interface->focus(device->pointer_grab, &surface->surface,
589 device->current_x, device->current_y);
590 device->current = &surface->surface;
593 focus = (struct weston_surface *) device->pointer_grab->focus;
595 weston_surface_from_global(focus, device->x, device->y,
596 &device->pointer_grab->x, &device->pointer_grab->y);
600 weston_compositor_repick(struct weston_compositor *compositor)
602 struct weston_input_device *device;
604 if (!compositor->focus)
607 wl_list_for_each(device, &compositor->input_device_list, link)
608 weston_device_repick(&device->input_device);
612 weston_surface_unmap(struct weston_surface *surface)
614 struct wl_input_device *device = surface->compositor->input_device;
616 weston_surface_damage_below(surface);
617 surface->output = NULL;
618 wl_list_remove(&surface->link);
619 wl_list_remove(&surface->layer_link);
621 if (device->keyboard_focus == &surface->surface)
622 wl_input_device_set_keyboard_focus(device, NULL);
623 if (device->pointer_focus == &surface->surface)
624 wl_input_device_set_pointer_focus(device, NULL, 0, 0);
626 weston_compositor_schedule_repaint(surface->compositor);
630 destroy_surface(struct wl_resource *resource)
632 struct weston_surface *surface =
633 container_of(resource,
634 struct weston_surface, surface.resource);
635 struct weston_compositor *compositor = surface->compositor;
637 if (weston_surface_is_mapped(surface))
638 weston_surface_unmap(surface);
640 if (surface->texture)
641 glDeleteTextures(1, &surface->texture);
644 wl_list_remove(&surface->buffer_destroy_listener.link);
646 if (surface->image != EGL_NO_IMAGE_KHR)
647 compositor->destroy_image(compositor->display,
650 pixman_region32_fini(&surface->transform.boundingbox);
651 pixman_region32_fini(&surface->damage);
652 pixman_region32_fini(&surface->opaque);
653 pixman_region32_fini(&surface->clip);
654 if (!region_is_undefined(&surface->input))
655 pixman_region32_fini(&surface->input);
661 weston_surface_destroy(struct weston_surface *surface)
663 /* Not a valid way to destroy a client surface */
664 assert(surface->surface.resource.client == NULL);
666 destroy_surface(&surface->surface.resource);
670 weston_surface_attach(struct wl_surface *surface, struct wl_buffer *buffer)
672 struct weston_surface *es = (struct weston_surface *) surface;
673 struct weston_compositor *ec = es->compositor;
676 weston_buffer_post_release(es->buffer);
677 wl_list_remove(&es->buffer_destroy_listener.link);
683 if (weston_surface_is_mapped(es))
684 weston_surface_unmap(es);
688 buffer->busy_count++;
689 wl_signal_add(&es->buffer->resource.destroy_signal,
690 &es->buffer_destroy_listener);
692 if (es->geometry.width != buffer->width ||
693 es->geometry.height != buffer->height) {
694 undef_region(&es->input);
695 pixman_region32_fini(&es->opaque);
696 pixman_region32_init(&es->opaque);
700 glGenTextures(1, &es->texture);
701 glBindTexture(GL_TEXTURE_2D, es->texture);
702 glTexParameteri(GL_TEXTURE_2D,
703 GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
704 glTexParameteri(GL_TEXTURE_2D,
705 GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
706 es->shader = &ec->texture_shader;
708 glBindTexture(GL_TEXTURE_2D, es->texture);
711 if (wl_buffer_is_shm(buffer)) {
712 es->pitch = wl_shm_buffer_get_stride(buffer) / 4;
713 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
714 es->pitch, es->buffer->height, 0,
715 GL_BGRA_EXT, GL_UNSIGNED_BYTE, NULL);
717 if (es->image != EGL_NO_IMAGE_KHR)
718 ec->destroy_image(ec->display, es->image);
719 es->image = ec->create_image(ec->display, NULL,
720 EGL_WAYLAND_BUFFER_WL,
723 ec->image_target_texture_2d(GL_TEXTURE_2D, es->image);
725 es->pitch = buffer->width;
730 texture_region(struct weston_surface *es, pixman_region32_t *region)
732 struct weston_compositor *ec = es->compositor;
733 GLfloat *v, inv_width, inv_height;
735 pixman_box32_t *rectangles;
739 rectangles = pixman_region32_rectangles(region, &n);
740 v = wl_array_add(&ec->vertices, n * 16 * sizeof *v);
741 p = wl_array_add(&ec->indices, n * 6 * sizeof *p);
742 inv_width = 1.0 / es->pitch;
743 inv_height = 1.0 / es->geometry.height;
745 for (i = 0; i < n; i++, v += 16, p += 6) {
746 surface_from_global_float(es, rectangles[i].x1,
747 rectangles[i].y1, &sx, &sy);
748 v[ 0] = rectangles[i].x1;
749 v[ 1] = rectangles[i].y1;
750 v[ 2] = sx * inv_width;
751 v[ 3] = sy * inv_height;
753 surface_from_global_float(es, rectangles[i].x1,
754 rectangles[i].y2, &sx, &sy);
755 v[ 4] = rectangles[i].x1;
756 v[ 5] = rectangles[i].y2;
757 v[ 6] = sx * inv_width;
758 v[ 7] = sy * inv_height;
760 surface_from_global_float(es, rectangles[i].x2,
761 rectangles[i].y1, &sx, &sy);
762 v[ 8] = rectangles[i].x2;
763 v[ 9] = rectangles[i].y1;
764 v[10] = sx * inv_width;
765 v[11] = sy * inv_height;
767 surface_from_global_float(es, rectangles[i].x2,
768 rectangles[i].y2, &sx, &sy);
769 v[12] = rectangles[i].x2;
770 v[13] = rectangles[i].y2;
771 v[14] = sx * inv_width;
772 v[15] = sy * inv_height;
786 weston_surface_draw(struct weston_surface *es, struct weston_output *output,
787 pixman_region32_t *damage)
789 struct weston_compositor *ec = es->compositor;
791 pixman_region32_t repaint;
795 pixman_region32_init(&repaint);
796 pixman_region32_intersect(&repaint,
797 &es->transform.boundingbox, damage);
798 pixman_region32_subtract(&repaint, &repaint, &es->clip);
800 if (!pixman_region32_not_empty(&repaint))
803 glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
806 if (ec->current_shader != es->shader) {
807 glUseProgram(es->shader->program);
808 ec->current_shader = es->shader;
811 glUniformMatrix4fv(es->shader->proj_uniform,
812 1, GL_FALSE, output->matrix.d);
813 glUniform1i(es->shader->tex_uniform, 0);
814 glUniform4fv(es->shader->color_uniform, 1, es->color);
815 glUniform1f(es->shader->alpha_uniform, es->alpha / 255.0);
816 glUniform1f(es->shader->texwidth_uniform,
817 (GLfloat)es->geometry.width / es->pitch);
819 if (es->transform.enabled || output->zoom.active)
824 n = texture_region(es, &repaint);
826 glBindTexture(GL_TEXTURE_2D, es->texture);
827 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
828 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
830 v = ec->vertices.data;
831 glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[0]);
832 glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[2]);
833 glEnableVertexAttribArray(0);
834 glEnableVertexAttribArray(1);
836 glDrawElements(GL_TRIANGLES, n * 6, GL_UNSIGNED_INT, ec->indices.data);
838 glDisableVertexAttribArray(1);
839 glDisableVertexAttribArray(0);
841 ec->vertices.size = 0;
842 ec->indices.size = 0;
845 pixman_region32_fini(&repaint);
849 weston_surface_restack(struct weston_surface *surface, struct wl_list *below)
851 wl_list_remove(&surface->layer_link);
852 wl_list_insert(below, &surface->layer_link);
853 weston_surface_damage_below(surface);
854 weston_surface_damage(surface);
858 weston_compositor_damage_all(struct weston_compositor *compositor)
860 struct weston_output *output;
862 wl_list_for_each(output, &compositor->output_list, link)
863 weston_output_damage(output);
867 weston_buffer_post_release(struct wl_buffer *buffer)
869 if (--buffer->busy_count > 0)
872 assert(buffer->resource.client != NULL);
873 wl_resource_queue_event(&buffer->resource, WL_BUFFER_RELEASE);
877 weston_output_damage(struct weston_output *output)
879 struct weston_compositor *compositor = output->compositor;
881 pixman_region32_union(&compositor->damage,
882 &compositor->damage, &output->region);
883 weston_compositor_schedule_repaint(compositor);
887 fade_frame(struct weston_animation *animation,
888 struct weston_output *output, uint32_t msecs)
890 struct weston_compositor *compositor =
891 container_of(animation,
892 struct weston_compositor, fade.animation);
893 struct weston_surface *surface;
895 surface = compositor->fade.surface;
896 weston_spring_update(&compositor->fade.spring, msecs);
897 weston_surface_set_color(surface, 0.0, 0.0, 0.0,
898 compositor->fade.spring.current);
899 weston_surface_damage(surface);
901 if (weston_spring_done(&compositor->fade.spring)) {
902 compositor->fade.spring.current =
903 compositor->fade.spring.target;
904 wl_list_remove(&animation->link);
905 wl_list_init(&animation->link);
907 if (compositor->fade.spring.current < 0.001) {
908 destroy_surface(&surface->surface.resource);
909 compositor->fade.surface = NULL;
910 } else if (compositor->fade.spring.current > 0.999) {
911 compositor->state = WESTON_COMPOSITOR_SLEEPING;
912 wl_signal_emit(&compositor->lock_signal, compositor);
917 struct weston_frame_callback {
918 struct wl_resource resource;
923 weston_output_repaint(struct weston_output *output, int msecs)
925 struct weston_compositor *ec = output->compositor;
926 struct weston_surface *es;
927 struct weston_layer *layer;
928 struct weston_animation *animation, *next;
929 struct weston_frame_callback *cb, *cnext;
930 pixman_region32_t opaque, new_damage, output_damage;
931 int32_t width, height;
933 weston_compositor_update_drag_surfaces(ec);
935 width = output->current->width +
936 output->border.left + output->border.right;
937 height = output->current->height +
938 output->border.top + output->border.bottom;
939 glViewport(0, 0, width, height);
941 /* Rebuild the surface list and update surface transforms up front. */
942 wl_list_init(&ec->surface_list);
943 wl_list_for_each(layer, &ec->layer_list, link) {
944 wl_list_for_each(es, &layer->surface_list, layer_link) {
945 weston_surface_update_transform(es);
946 wl_list_insert(ec->surface_list.prev, &es->link);
950 if (output->assign_planes)
952 * This will queue flips for the fbs and sprites where
953 * applicable and clear the damage for those surfaces.
954 * The repaint loop below will repaint everything
957 output->assign_planes(output);
959 pixman_region32_init(&new_damage);
960 pixman_region32_init(&opaque);
962 wl_list_for_each(es, &ec->surface_list, link) {
963 pixman_region32_subtract(&es->damage, &es->damage, &opaque);
964 pixman_region32_union(&new_damage, &new_damage, &es->damage);
965 empty_region(&es->damage);
966 pixman_region32_copy(&es->clip, &opaque);
967 pixman_region32_union(&opaque, &opaque, &es->transform.opaque);
970 pixman_region32_union(&ec->damage, &ec->damage, &new_damage);
972 pixman_region32_init(&output_damage);
973 pixman_region32_union(&output_damage,
974 &ec->damage, &output->previous_damage);
975 pixman_region32_copy(&output->previous_damage, &ec->damage);
976 pixman_region32_intersect(&output_damage,
977 &output_damage, &output->region);
978 pixman_region32_subtract(&ec->damage, &ec->damage, &output->region);
980 pixman_region32_fini(&opaque);
981 pixman_region32_fini(&new_damage);
984 weston_output_update_matrix(output);
986 output->repaint(output, &output_damage);
988 pixman_region32_fini(&output_damage);
990 output->repaint_needed = 0;
992 weston_compositor_repick(ec);
993 wl_event_loop_dispatch(ec->input_loop, 0);
995 wl_list_for_each_safe(cb, cnext, &output->frame_callback_list, link) {
996 wl_callback_send_done(&cb->resource, msecs);
997 wl_resource_destroy(&cb->resource);
1000 wl_list_for_each_safe(animation, next, &ec->animation_list, link)
1001 animation->frame(animation, output, msecs);
1005 weston_compositor_read_input(int fd, uint32_t mask, void *data)
1007 struct weston_compositor *compositor = data;
1009 wl_event_loop_dispatch(compositor->input_loop, 0);
1015 weston_output_finish_frame(struct weston_output *output, int msecs)
1017 struct weston_compositor *compositor = output->compositor;
1018 struct wl_event_loop *loop =
1019 wl_display_get_event_loop(compositor->wl_display);
1022 if (output->repaint_needed) {
1023 weston_output_repaint(output, msecs);
1027 output->repaint_scheduled = 0;
1028 if (compositor->input_loop_source)
1031 fd = wl_event_loop_get_fd(compositor->input_loop);
1032 compositor->input_loop_source =
1033 wl_event_loop_add_fd(loop, fd, WL_EVENT_READABLE,
1034 weston_compositor_read_input, compositor);
1038 idle_repaint(void *data)
1040 struct weston_output *output = data;
1042 weston_output_finish_frame(output, weston_compositor_get_time());
1046 weston_layer_init(struct weston_layer *layer, struct wl_list *below)
1048 wl_list_init(&layer->surface_list);
1049 wl_list_insert(below, &layer->link);
1053 weston_compositor_schedule_repaint(struct weston_compositor *compositor)
1055 struct weston_output *output;
1056 struct wl_event_loop *loop;
1058 if (compositor->state == WESTON_COMPOSITOR_SLEEPING)
1061 loop = wl_display_get_event_loop(compositor->wl_display);
1062 wl_list_for_each(output, &compositor->output_list, link) {
1063 output->repaint_needed = 1;
1064 if (output->repaint_scheduled)
1067 wl_event_loop_add_idle(loop, idle_repaint, output);
1068 output->repaint_scheduled = 1;
1071 if (compositor->input_loop_source) {
1072 wl_event_source_remove(compositor->input_loop_source);
1073 compositor->input_loop_source = NULL;
1078 weston_compositor_fade(struct weston_compositor *compositor, float tint)
1080 struct weston_surface *surface;
1083 done = weston_spring_done(&compositor->fade.spring);
1084 compositor->fade.spring.target = tint;
1085 if (weston_spring_done(&compositor->fade.spring))
1089 compositor->fade.spring.timestamp =
1090 weston_compositor_get_time();
1092 if (compositor->fade.surface == NULL) {
1093 surface = weston_surface_create(compositor);
1094 weston_surface_configure(surface, 0, 0, 8192, 8192);
1095 weston_surface_set_color(surface, 0.0, 0.0, 0.0, 0.0);
1096 wl_list_insert(&compositor->fade_layer.surface_list,
1097 &surface->layer_link);
1098 weston_surface_assign_output(surface);
1099 compositor->fade.surface = surface;
1100 pixman_region32_init(&surface->input);
1103 weston_surface_damage(compositor->fade.surface);
1104 if (wl_list_empty(&compositor->fade.animation.link))
1105 wl_list_insert(compositor->animation_list.prev,
1106 &compositor->fade.animation.link);
1110 surface_destroy(struct wl_client *client, struct wl_resource *resource)
1112 wl_resource_destroy(resource);
1116 weston_surface_assign_output(struct weston_surface *es)
1118 struct weston_compositor *ec = es->compositor;
1119 struct weston_output *output, *new_output;
1120 pixman_region32_t region;
1124 weston_surface_update_transform(es);
1128 pixman_region32_init(®ion);
1129 wl_list_for_each(output, &ec->output_list, link) {
1130 pixman_region32_intersect(®ion, &es->transform.boundingbox,
1133 e = pixman_region32_extents(®ion);
1134 area = (e->x2 - e->x1) * (e->y2 - e->y1);
1137 new_output = output;
1141 pixman_region32_fini(®ion);
1143 es->output = new_output;
1144 if (!wl_list_empty(&es->frame_callback_list)) {
1145 wl_list_insert_list(new_output->frame_callback_list.prev,
1146 &es->frame_callback_list);
1147 wl_list_init(&es->frame_callback_list);
1152 surface_attach(struct wl_client *client,
1153 struct wl_resource *resource,
1154 struct wl_resource *buffer_resource, int32_t sx, int32_t sy)
1156 struct weston_surface *es = resource->data;
1157 struct wl_buffer *buffer = NULL;
1159 if (buffer_resource)
1160 buffer = buffer_resource->data;
1162 weston_surface_attach(&es->surface, buffer);
1164 if (buffer && es->configure)
1165 es->configure(es, sx, sy);
1169 texture_set_subimage(struct weston_surface *surface,
1170 int32_t x, int32_t y, int32_t width, int32_t height)
1172 glBindTexture(GL_TEXTURE_2D, surface->texture);
1174 #ifdef GL_UNPACK_ROW_LENGTH
1175 /* Mesa does not define GL_EXT_unpack_subimage */
1177 if (surface->compositor->has_unpack_subimage) {
1178 glPixelStorei(GL_UNPACK_ROW_LENGTH, surface->pitch);
1179 glPixelStorei(GL_UNPACK_SKIP_PIXELS, x);
1180 glPixelStorei(GL_UNPACK_SKIP_ROWS, y);
1182 glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, width, height,
1183 GL_BGRA_EXT, GL_UNSIGNED_BYTE,
1184 wl_shm_buffer_get_data(surface->buffer));
1189 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
1190 surface->pitch, surface->buffer->height, 0,
1191 GL_BGRA_EXT, GL_UNSIGNED_BYTE,
1192 wl_shm_buffer_get_data(surface->buffer));
1196 surface_damage(struct wl_client *client,
1197 struct wl_resource *resource,
1198 int32_t x, int32_t y, int32_t width, int32_t height)
1200 struct weston_surface *es = resource->data;
1202 weston_surface_damage_rectangle(es, x, y, width, height);
1204 if (es->buffer && wl_buffer_is_shm(es->buffer))
1205 texture_set_subimage(es, x, y, width, height);
1209 destroy_frame_callback(struct wl_resource *resource)
1211 struct weston_frame_callback *cb = resource->data;
1213 wl_list_remove(&cb->link);
1218 surface_frame(struct wl_client *client,
1219 struct wl_resource *resource, uint32_t callback)
1221 struct weston_frame_callback *cb;
1222 struct weston_surface *es = resource->data;
1224 cb = malloc(sizeof *cb);
1226 wl_resource_post_no_memory(resource);
1230 cb->resource.object.interface = &wl_callback_interface;
1231 cb->resource.object.id = callback;
1232 cb->resource.destroy = destroy_frame_callback;
1233 cb->resource.client = client;
1234 cb->resource.data = cb;
1236 wl_client_add_resource(client, &cb->resource);
1239 wl_list_insert(es->output->frame_callback_list.prev,
1242 wl_list_insert(es->frame_callback_list.prev, &cb->link);
1247 surface_set_opaque_region(struct wl_client *client,
1248 struct wl_resource *resource,
1249 struct wl_resource *region_resource)
1251 struct weston_surface *surface = resource->data;
1252 struct weston_region *region;
1254 pixman_region32_fini(&surface->opaque);
1256 if (region_resource) {
1257 region = region_resource->data;
1258 pixman_region32_init_rect(&surface->opaque, 0, 0,
1259 surface->geometry.width,
1260 surface->geometry.height);
1261 pixman_region32_intersect(&surface->opaque,
1262 &surface->opaque, ®ion->region);
1264 pixman_region32_init(&surface->opaque);
1267 surface->geometry.dirty = 1;
1271 surface_set_input_region(struct wl_client *client,
1272 struct wl_resource *resource,
1273 struct wl_resource *region_resource)
1275 struct weston_surface *surface = resource->data;
1276 struct weston_region *region;
1278 if (region_resource) {
1279 region = region_resource->data;
1280 pixman_region32_init_rect(&surface->input, 0, 0,
1281 surface->geometry.width,
1282 surface->geometry.height);
1283 pixman_region32_intersect(&surface->input,
1284 &surface->input, ®ion->region);
1286 pixman_region32_init_rect(&surface->input, 0, 0,
1287 surface->geometry.width,
1288 surface->geometry.height);
1291 weston_compositor_schedule_repaint(surface->compositor);
1294 static const struct wl_surface_interface surface_interface = {
1299 surface_set_opaque_region,
1300 surface_set_input_region
1304 compositor_create_surface(struct wl_client *client,
1305 struct wl_resource *resource, uint32_t id)
1307 struct weston_compositor *ec = resource->data;
1308 struct weston_surface *surface;
1310 surface = weston_surface_create(ec);
1311 if (surface == NULL) {
1312 wl_resource_post_no_memory(resource);
1316 surface->surface.resource.destroy = destroy_surface;
1318 surface->surface.resource.object.id = id;
1319 surface->surface.resource.object.interface = &wl_surface_interface;
1320 surface->surface.resource.object.implementation =
1321 (void (**)(void)) &surface_interface;
1322 surface->surface.resource.data = surface;
1324 wl_client_add_resource(client, &surface->surface.resource);
1328 destroy_region(struct wl_resource *resource)
1330 struct weston_region *region =
1331 container_of(resource, struct weston_region, resource);
1333 pixman_region32_fini(®ion->region);
1338 region_destroy(struct wl_client *client, struct wl_resource *resource)
1340 wl_resource_destroy(resource);
1344 region_add(struct wl_client *client, struct wl_resource *resource,
1345 int32_t x, int32_t y, int32_t width, int32_t height)
1347 struct weston_region *region = resource->data;
1349 pixman_region32_union_rect(®ion->region, ®ion->region,
1350 x, y, width, height);
1354 region_subtract(struct wl_client *client, struct wl_resource *resource,
1355 int32_t x, int32_t y, int32_t width, int32_t height)
1357 struct weston_region *region = resource->data;
1358 pixman_region32_t rect;
1360 pixman_region32_init_rect(&rect, x, y, width, height);
1361 pixman_region32_subtract(®ion->region, ®ion->region, &rect);
1362 pixman_region32_fini(&rect);
1365 static const struct wl_region_interface region_interface = {
1372 compositor_create_region(struct wl_client *client,
1373 struct wl_resource *resource, uint32_t id)
1375 struct weston_region *region;
1377 region = malloc(sizeof *region);
1378 if (region == NULL) {
1379 wl_resource_post_no_memory(resource);
1383 region->resource.destroy = destroy_region;
1385 region->resource.object.id = id;
1386 region->resource.object.interface = &wl_region_interface;
1387 region->resource.object.implementation =
1388 (void (**)(void)) ®ion_interface;
1389 region->resource.data = region;
1391 pixman_region32_init(®ion->region);
1393 wl_client_add_resource(client, ®ion->resource);
1396 static const struct wl_compositor_interface compositor_interface = {
1397 compositor_create_surface,
1398 compositor_create_region
1402 weston_compositor_wake(struct weston_compositor *compositor)
1404 compositor->state = WESTON_COMPOSITOR_ACTIVE;
1405 weston_compositor_fade(compositor, 0.0);
1407 wl_event_source_timer_update(compositor->idle_source,
1408 compositor->idle_time * 1000);
1412 weston_compositor_dpms_on(struct weston_compositor *compositor)
1414 struct weston_output *output;
1416 wl_list_for_each(output, &compositor->output_list, link)
1417 if (output->set_dpms)
1418 output->set_dpms(output, WESTON_DPMS_ON);
1422 weston_compositor_activity(struct weston_compositor *compositor)
1424 if (compositor->state == WESTON_COMPOSITOR_ACTIVE) {
1425 weston_compositor_wake(compositor);
1427 weston_compositor_dpms_on(compositor);
1428 wl_signal_emit(&compositor->unlock_signal, compositor);
1433 weston_compositor_idle_inhibit(struct weston_compositor *compositor)
1435 weston_compositor_activity(compositor);
1436 compositor->idle_inhibit++;
1440 weston_compositor_idle_release(struct weston_compositor *compositor)
1442 compositor->idle_inhibit--;
1443 weston_compositor_activity(compositor);
1447 idle_handler(void *data)
1449 struct weston_compositor *compositor = data;
1451 if (compositor->idle_inhibit)
1454 weston_compositor_fade(compositor, 1.0);
1460 weston_input_update_drag_surface(struct wl_input_device *input_device,
1464 notify_motion(struct wl_input_device *device, uint32_t time, int x, int y)
1466 struct weston_output *output;
1467 const struct wl_pointer_grab_interface *interface;
1468 struct weston_input_device *wd = (struct weston_input_device *) device;
1469 struct weston_compositor *ec = wd->compositor;
1470 int x_valid = 0, y_valid = 0;
1471 int min_x = INT_MAX, min_y = INT_MAX, max_x = INT_MIN, max_y = INT_MIN;
1473 weston_compositor_activity(ec);
1475 wl_list_for_each(output, &ec->output_list, link) {
1476 if (output->x <= x && x < output->x + output->current->width)
1479 if (output->y <= y && y < output->y + output->current->height)
1482 /* FIXME: calculate this only on output addition/deletion */
1483 if (output->x < min_x)
1485 if (output->y < min_y)
1488 if (output->x + output->current->width > max_x)
1489 max_x = output->x + output->current->width - 1;
1490 if (output->y + output->current->height > max_y)
1491 max_y = output->y + output->current->height - 1;
1497 else if (x >= max_x)
1503 else if (y >= max_y)
1507 weston_input_update_drag_surface(device,
1508 x - device->x, y - device->y);
1513 wl_list_for_each(output, &ec->output_list, link)
1514 if (output->zoom.active &&
1515 pixman_region32_contains_point(&output->region, x, y, NULL))
1516 weston_output_update_zoom(output, x, y);
1518 weston_device_repick(device);
1519 interface = device->pointer_grab->interface;
1520 interface->motion(device->pointer_grab, time,
1521 device->pointer_grab->x, device->pointer_grab->y);
1524 weston_surface_set_position(wd->sprite,
1525 device->x - wd->hotspot_x,
1526 device->y - wd->hotspot_y);
1528 weston_compositor_schedule_repaint(ec);
1533 weston_surface_activate(struct weston_surface *surface,
1534 struct weston_input_device *device)
1536 struct weston_compositor *compositor = device->compositor;
1538 wl_input_device_set_keyboard_focus(&device->input_device,
1540 wl_data_device_set_keyboard_focus(&device->input_device);
1542 wl_signal_emit(&compositor->activate_signal, surface);
1546 notify_button(struct wl_input_device *device,
1547 uint32_t time, int32_t button, int32_t state)
1549 struct weston_input_device *wd = (struct weston_input_device *) device;
1550 struct weston_compositor *compositor = wd->compositor;
1553 weston_compositor_idle_inhibit(compositor);
1554 if (device->button_count == 0) {
1555 device->grab_button = button;
1556 device->grab_time = time;
1557 device->grab_x = device->x;
1558 device->grab_y = device->y;
1560 device->button_count++;
1562 weston_compositor_idle_release(compositor);
1563 device->button_count--;
1566 weston_compositor_run_binding(compositor, wd, time, 0, button, 0, state);
1568 device->pointer_grab->interface->button(device->pointer_grab, time, button, state);
1570 if (device->button_count == 1)
1571 device->grab_serial =
1572 wl_display_get_serial(compositor->wl_display);
1576 notify_axis(struct wl_input_device *device,
1577 uint32_t time, uint32_t axis, int32_t value)
1579 struct weston_input_device *wd = (struct weston_input_device *) device;
1580 struct weston_compositor *compositor = wd->compositor;
1582 weston_compositor_activity(compositor);
1585 weston_compositor_run_binding(compositor, wd,
1586 time, 0, 0, axis, value);
1590 if (device->pointer_focus_resource)
1591 wl_resource_post_event(device->pointer_focus_resource,
1592 WL_INPUT_DEVICE_AXIS, time, axis, value);
1596 update_modifier_state(struct weston_input_device *device,
1597 uint32_t key, uint32_t state)
1604 modifier = MODIFIER_CTRL;
1609 modifier = MODIFIER_ALT;
1614 modifier = MODIFIER_SUPER;
1623 device->modifier_state |= modifier;
1625 device->modifier_state &= ~modifier;
1629 notify_key(struct wl_input_device *device,
1630 uint32_t time, uint32_t key, uint32_t state)
1632 struct weston_input_device *wd = (struct weston_input_device *) device;
1633 struct weston_compositor *compositor = wd->compositor;
1637 weston_compositor_idle_inhibit(compositor);
1638 device->grab_key = key;
1639 device->grab_time = time;
1641 weston_compositor_idle_release(compositor);
1644 update_modifier_state(wd, key, state);
1645 end = device->keys.data + device->keys.size;
1646 for (k = device->keys.data; k < end; k++) {
1650 device->keys.size = (void *) end - device->keys.data;
1652 k = wl_array_add(&device->keys, sizeof *k);
1656 if (device->keyboard_grab == &device->default_keyboard_grab)
1657 weston_compositor_run_binding(compositor, wd,
1658 time, key, 0, 0, state);
1660 device->keyboard_grab->interface->key(device->keyboard_grab,
1665 notify_pointer_focus(struct wl_input_device *device,
1666 struct weston_output *output, int32_t x, int32_t y)
1668 struct weston_input_device *wd = (struct weston_input_device *) device;
1669 struct weston_compositor *compositor = wd->compositor;
1672 weston_input_update_drag_surface(device, x - device->x,
1677 compositor->focus = 1;
1678 weston_compositor_repick(compositor);
1680 compositor->focus = 0;
1681 weston_compositor_repick(compositor);
1686 destroy_device_saved_kbd_focus(struct wl_listener *listener, void *data)
1688 struct weston_input_device *wd;
1690 wd = container_of(listener, struct weston_input_device,
1691 saved_kbd_focus_listener);
1693 wd->saved_kbd_focus = NULL;
1697 notify_keyboard_focus(struct wl_input_device *device, struct wl_array *keys)
1699 struct weston_input_device *wd =
1700 (struct weston_input_device *) device;
1701 struct weston_compositor *compositor = wd->compositor;
1702 struct wl_surface *surface;
1706 wl_array_copy(&wd->input_device.keys, keys);
1707 wd->modifier_state = 0;
1708 wl_array_for_each(k, &device->keys) {
1709 weston_compositor_idle_inhibit(compositor);
1710 update_modifier_state(wd, *k, 1);
1713 surface = wd->saved_kbd_focus;
1716 wl_list_remove(&wd->saved_kbd_focus_listener.link);
1717 wl_input_device_set_keyboard_focus(&wd->input_device,
1719 wd->saved_kbd_focus = NULL;
1722 wl_array_for_each(k, &device->keys)
1723 weston_compositor_idle_release(compositor);
1725 wd->modifier_state = 0;
1727 surface = wd->input_device.keyboard_focus;
1730 wd->saved_kbd_focus = surface;
1731 wd->saved_kbd_focus_listener.notify =
1732 destroy_device_saved_kbd_focus;
1733 wl_signal_add(&surface->resource.destroy_signal,
1734 &wd->saved_kbd_focus_listener);
1737 wl_input_device_set_keyboard_focus(&wd->input_device, NULL);
1738 /* FIXME: We really need keyboard grab cancel here to
1739 * let the grab shut down properly. As it is we leak
1741 wl_input_device_end_keyboard_grab(&wd->input_device);
1745 /* TODO: share this function with wayland-server.c */
1746 static struct wl_resource *
1747 find_resource_for_surface(struct wl_list *list, struct wl_surface *surface)
1749 struct wl_resource *r;
1754 wl_list_for_each(r, list, link) {
1755 if (r->client == surface->resource.client)
1763 lose_touch_focus_resource(struct wl_listener *listener, void *data)
1765 struct weston_input_device *device =
1766 container_of(listener, struct weston_input_device,
1767 touch_focus_resource_listener);
1769 device->touch_focus_resource = NULL;
1773 lose_touch_focus(struct wl_listener *listener, void *data)
1775 struct weston_input_device *device =
1776 container_of(listener, struct weston_input_device,
1777 touch_focus_listener);
1779 device->touch_focus = NULL;
1783 touch_set_focus(struct weston_input_device *device,
1784 struct wl_surface *surface)
1786 struct wl_input_device *input_device = &device->input_device;
1787 struct wl_resource *resource;
1789 if (device->touch_focus == surface)
1794 find_resource_for_surface(&input_device->resource_list,
1797 fprintf(stderr, "couldn't find resource\n");
1801 device->touch_focus_resource_listener.notify =
1802 lose_touch_focus_resource;
1803 wl_signal_add(&resource->destroy_signal,
1804 &device->touch_focus_resource_listener);
1805 device->touch_focus_listener.notify = lose_touch_focus;
1806 wl_signal_add(&surface->resource.destroy_signal,
1807 &device->touch_focus_listener);
1809 device->touch_focus = surface;
1810 device->touch_focus_resource = resource;
1812 if (device->touch_focus)
1813 wl_list_remove(&device->touch_focus_listener.link);
1814 if (device->touch_focus_resource)
1815 wl_list_remove(&device->touch_focus_resource_listener.link);
1816 device->touch_focus = NULL;
1817 device->touch_focus_resource = NULL;
1822 * notify_touch - emulates button touches and notifies surfaces accordingly.
1824 * It assumes always the correct cycle sequence until it gets here: touch_down
1825 * → touch_update → ... → touch_update → touch_end. The driver is responsible
1826 * for sending along such order.
1830 notify_touch(struct wl_input_device *device, uint32_t time, int touch_id,
1831 int x, int y, int touch_type)
1833 struct weston_input_device *wd = (struct weston_input_device *) device;
1834 struct weston_compositor *ec = wd->compositor;
1835 struct weston_surface *es;
1837 uint32_t serial = 0;
1839 switch (touch_type) {
1840 case WL_INPUT_DEVICE_TOUCH_DOWN:
1841 weston_compositor_idle_inhibit(ec);
1845 /* the first finger down picks the surface, and all further go
1846 * to that surface for the remainder of the touch session i.e.
1847 * until all touch points are up again. */
1848 if (wd->num_tp == 1) {
1849 es = weston_compositor_pick_surface(ec, x, y, &sx, &sy);
1850 touch_set_focus(wd, &es->surface);
1851 } else if (wd->touch_focus) {
1852 es = (struct weston_surface *) wd->touch_focus;
1853 weston_surface_from_global(es, x, y, &sx, &sy);
1856 if (wd->touch_focus_resource && wd->touch_focus)
1857 wl_input_device_send_touch_down(wd->touch_focus_resource,
1858 serial, time, &wd->touch_focus->resource,
1861 case WL_INPUT_DEVICE_TOUCH_MOTION:
1862 es = (struct weston_surface *) wd->touch_focus;
1866 weston_surface_from_global(es, x, y, &sx, &sy);
1867 if (wd->touch_focus_resource)
1868 wl_input_device_send_touch_motion(wd->touch_focus_resource,
1869 time, touch_id, sx, sy);
1871 case WL_INPUT_DEVICE_TOUCH_UP:
1872 weston_compositor_idle_release(ec);
1875 if (wd->touch_focus_resource)
1876 wl_input_device_send_touch_up(wd->touch_focus_resource,
1877 serial, time, touch_id);
1878 if (wd->num_tp == 0)
1879 touch_set_focus(wd, NULL);
1885 input_device_attach(struct wl_client *client,
1886 struct wl_resource *resource,
1888 struct wl_resource *buffer_resource, int32_t x, int32_t y)
1890 struct weston_input_device *device = resource->data;
1891 struct weston_compositor *compositor = device->compositor;
1892 struct wl_buffer *buffer = NULL;
1894 if (serial < device->input_device.pointer_focus_serial)
1896 if (device->input_device.pointer_focus == NULL)
1898 if (device->input_device.pointer_focus->resource.client != client)
1901 if (buffer_resource)
1902 buffer = buffer_resource->data;
1904 weston_surface_attach(&device->sprite->surface, buffer);
1909 if (!weston_surface_is_mapped(device->sprite)) {
1910 wl_list_insert(&compositor->cursor_layer.surface_list,
1911 &device->sprite->layer_link);
1912 weston_surface_assign_output(device->sprite);
1916 device->hotspot_x = x;
1917 device->hotspot_y = y;
1918 weston_surface_configure(device->sprite,
1919 device->input_device.x - device->hotspot_x,
1920 device->input_device.y - device->hotspot_y,
1921 buffer->width, buffer->height);
1923 surface_damage(NULL, &device->sprite->surface.resource,
1924 0, 0, buffer->width, buffer->height);
1927 static const struct wl_input_device_interface input_device_interface = {
1928 input_device_attach,
1932 handle_drag_surface_destroy(struct wl_listener *listener, void *data)
1934 struct weston_input_device *device;
1936 device = container_of(listener, struct weston_input_device,
1937 drag_surface_destroy_listener);
1939 device->drag_surface = NULL;
1942 static void unbind_input_device(struct wl_resource *resource)
1944 wl_list_remove(&resource->link);
1949 bind_input_device(struct wl_client *client,
1950 void *data, uint32_t version, uint32_t id)
1952 struct wl_input_device *device = data;
1953 struct wl_resource *resource;
1955 resource = wl_client_add_object(client, &wl_input_device_interface,
1956 &input_device_interface, id, data);
1957 wl_list_insert(&device->resource_list, &resource->link);
1958 resource->destroy = unbind_input_device;
1962 device_handle_new_drag_icon(struct wl_listener *listener, void *data)
1964 struct weston_input_device *device;
1966 device = container_of(listener, struct weston_input_device,
1967 new_drag_icon_listener);
1969 weston_input_update_drag_surface(&device->input_device, 0, 0);
1973 weston_input_device_init(struct weston_input_device *device,
1974 struct weston_compositor *ec)
1976 wl_input_device_init(&device->input_device);
1978 wl_display_add_global(ec->wl_display, &wl_input_device_interface,
1979 device, bind_input_device);
1981 device->sprite = weston_surface_create(ec);
1982 device->sprite->surface.resource.data = device->sprite;
1984 device->compositor = ec;
1985 device->hotspot_x = 16;
1986 device->hotspot_y = 16;
1987 device->modifier_state = 0;
1990 device->drag_surface_destroy_listener.notify =
1991 handle_drag_surface_destroy;
1993 wl_list_insert(ec->input_device_list.prev, &device->link);
1995 device->new_drag_icon_listener.notify = device_handle_new_drag_icon;
1996 wl_signal_add(&device->input_device.drag_icon_signal,
1997 &device->new_drag_icon_listener);
2001 weston_input_device_release(struct weston_input_device *device)
2003 wl_list_remove(&device->link);
2004 /* The global object is destroyed at wl_display_destroy() time. */
2007 destroy_surface(&device->sprite->surface.resource);
2009 wl_input_device_release(&device->input_device);
2013 drag_surface_configure(struct weston_surface *es, int32_t sx, int32_t sy)
2015 weston_surface_configure(es,
2016 es->geometry.x + sx, es->geometry.y + sy,
2017 es->buffer->width, es->buffer->height);
2021 device_setup_new_drag_surface(struct weston_input_device *device,
2022 struct weston_surface *surface)
2024 struct wl_input_device *input_device = &device->input_device;
2026 if (surface->configure) {
2027 wl_resource_post_error(&surface->surface.resource,
2028 WL_DISPLAY_ERROR_INVALID_OBJECT,
2029 "surface->configure already set");
2033 device->drag_surface = surface;
2035 weston_surface_set_position(device->drag_surface,
2036 input_device->x, input_device->y);
2038 surface->configure = drag_surface_configure;
2040 wl_signal_add(&surface->surface.resource.destroy_signal,
2041 &device->drag_surface_destroy_listener);
2047 device_release_drag_surface(struct weston_input_device *device)
2049 device->drag_surface->configure = NULL;
2050 undef_region(&device->drag_surface->input);
2051 wl_list_remove(&device->drag_surface_destroy_listener.link);
2052 device->drag_surface = NULL;
2056 device_map_drag_surface(struct weston_input_device *device)
2058 if (weston_surface_is_mapped(device->drag_surface) ||
2059 !device->drag_surface->buffer)
2062 wl_list_insert(&device->sprite->layer_link,
2063 &device->drag_surface->layer_link);
2064 weston_surface_assign_output(device->drag_surface);
2065 empty_region(&device->drag_surface->input);
2069 weston_input_update_drag_surface(struct wl_input_device *input_device,
2072 int surface_changed = 0;
2073 struct weston_input_device *device = (struct weston_input_device *)
2076 if (!device->drag_surface && !input_device->drag_surface)
2079 if (device->drag_surface && input_device->drag_surface &&
2080 (&device->drag_surface->surface.resource !=
2081 &input_device->drag_surface->resource))
2082 /* between calls to this funcion we got a new drag_surface */
2083 surface_changed = 1;
2085 if (!input_device->drag_surface || surface_changed) {
2086 device_release_drag_surface(device);
2087 if (!surface_changed)
2091 if (!device->drag_surface || surface_changed) {
2092 struct weston_surface *surface = (struct weston_surface *)
2093 input_device->drag_surface;
2094 if (!device_setup_new_drag_surface(device, surface))
2098 /* the client may not have attached a buffer to the drag surface
2099 * when we setup it up, so check if map is needed on every update */
2100 device_map_drag_surface(device);
2102 /* the client may have attached a buffer with a different size to
2103 * the drag surface, causing the input region to be reset */
2104 if (region_is_undefined(&device->drag_surface->input))
2105 empty_region(&device->drag_surface->input);
2110 weston_surface_set_position(device->drag_surface,
2111 device->drag_surface->geometry.x + dx,
2112 device->drag_surface->geometry.y + dy);
2116 weston_compositor_update_drag_surfaces(struct weston_compositor *compositor)
2118 weston_input_update_drag_surface(compositor->input_device, 0, 0);
2122 bind_output(struct wl_client *client,
2123 void *data, uint32_t version, uint32_t id)
2125 struct weston_output *output = data;
2126 struct weston_mode *mode;
2127 struct wl_resource *resource;
2129 resource = wl_client_add_object(client,
2130 &wl_output_interface, NULL, id, data);
2132 wl_output_send_geometry(resource,
2138 output->make, output->model);
2140 wl_list_for_each (mode, &output->mode_list, link) {
2141 wl_output_send_mode(resource,
2149 static const char vertex_shader[] =
2150 "uniform mat4 proj;\n"
2151 "attribute vec2 position;\n"
2152 "attribute vec2 texcoord;\n"
2153 "varying vec2 v_texcoord;\n"
2156 " gl_Position = proj * vec4(position, 0.0, 1.0);\n"
2157 " v_texcoord = texcoord;\n"
2160 static const char texture_fragment_shader[] =
2161 "precision mediump float;\n"
2162 "varying vec2 v_texcoord;\n"
2163 "uniform sampler2D tex;\n"
2164 "uniform float alpha;\n"
2165 "uniform float texwidth;\n"
2168 " if (v_texcoord.x < 0.0 || v_texcoord.x > texwidth ||\n"
2169 " v_texcoord.y < 0.0 || v_texcoord.y > 1.0)\n"
2171 " gl_FragColor = texture2D(tex, v_texcoord)\n;"
2172 " gl_FragColor = alpha * gl_FragColor;\n"
2175 static const char solid_fragment_shader[] =
2176 "precision mediump float;\n"
2177 "uniform vec4 color;\n"
2178 "uniform float alpha;\n"
2181 " gl_FragColor = alpha * color\n;"
2185 compile_shader(GLenum type, const char *source)
2191 s = glCreateShader(type);
2192 glShaderSource(s, 1, &source, NULL);
2194 glGetShaderiv(s, GL_COMPILE_STATUS, &status);
2196 glGetShaderInfoLog(s, sizeof msg, NULL, msg);
2197 fprintf(stderr, "shader info: %s\n", msg);
2205 weston_shader_init(struct weston_shader *shader,
2206 const char *vertex_source, const char *fragment_source)
2211 shader->vertex_shader =
2212 compile_shader(GL_VERTEX_SHADER, vertex_source);
2213 shader->fragment_shader =
2214 compile_shader(GL_FRAGMENT_SHADER, fragment_source);
2216 shader->program = glCreateProgram();
2217 glAttachShader(shader->program, shader->vertex_shader);
2218 glAttachShader(shader->program, shader->fragment_shader);
2219 glBindAttribLocation(shader->program, 0, "position");
2220 glBindAttribLocation(shader->program, 1, "texcoord");
2222 glLinkProgram(shader->program);
2223 glGetProgramiv(shader->program, GL_LINK_STATUS, &status);
2225 glGetProgramInfoLog(shader->program, sizeof msg, NULL, msg);
2226 fprintf(stderr, "link info: %s\n", msg);
2230 shader->proj_uniform = glGetUniformLocation(shader->program, "proj");
2231 shader->tex_uniform = glGetUniformLocation(shader->program, "tex");
2232 shader->alpha_uniform = glGetUniformLocation(shader->program, "alpha");
2233 shader->color_uniform = glGetUniformLocation(shader->program, "color");
2234 shader->texwidth_uniform = glGetUniformLocation(shader->program,
2241 weston_output_destroy(struct weston_output *output)
2243 struct weston_compositor *c = output->compositor;
2245 pixman_region32_fini(&output->region);
2246 pixman_region32_fini(&output->previous_damage);
2248 wl_display_remove_global(c->wl_display, output->global);
2252 weston_output_update_zoom(struct weston_output *output, int x, int y)
2256 if (output->zoom.level <= 0)
2259 output->zoom.magnification = 1 / output->zoom.level;
2260 ratio = 1 - (1 / output->zoom.magnification);
2262 output->zoom.trans_x = (((float)(x - output->x) / output->current->width) * (ratio * 2)) - ratio;
2263 output->zoom.trans_y = (((float)(y - output->y) / output->current->height) * (ratio * 2)) - ratio;
2266 weston_output_damage(output);
2270 weston_output_update_matrix(struct weston_output *output)
2273 struct weston_matrix camera;
2274 struct weston_matrix modelview;
2276 weston_matrix_init(&output->matrix);
2277 weston_matrix_translate(&output->matrix,
2278 -(output->x + (output->border.right + output->current->width - output->border.left) / 2.0),
2279 -(output->y + (output->border.bottom + output->current->height - output->border.top) / 2.0), 0);
2281 flip = (output->flags & WL_OUTPUT_FLIPPED) ? -1 : 1;
2282 weston_matrix_scale(&output->matrix,
2283 2.0 / (output->current->width + output->border.left + output->border.right),
2284 flip * 2.0 / (output->current->height + output->border.top + output->border.bottom), 1);
2285 if (output->zoom.active) {
2286 weston_matrix_init(&camera);
2287 weston_matrix_init(&modelview);
2288 weston_matrix_translate(&camera, output->zoom.trans_x, flip * output->zoom.trans_y, 0);
2289 weston_matrix_invert(&modelview, &camera);
2290 weston_matrix_scale(&modelview, output->zoom.magnification, output->zoom.magnification, 1.0);
2291 weston_matrix_multiply(&output->matrix, &modelview);
2298 weston_output_move(struct weston_output *output, int x, int y)
2303 pixman_region32_init(&output->previous_damage);
2304 pixman_region32_init_rect(&output->region, x, y,
2305 output->current->width,
2306 output->current->height);
2310 weston_output_init(struct weston_output *output, struct weston_compositor *c,
2311 int x, int y, int width, int height, uint32_t flags)
2313 output->compositor = c;
2316 output->border.top = 0;
2317 output->border.bottom = 0;
2318 output->border.left = 0;
2319 output->border.right = 0;
2320 output->mm_width = width;
2321 output->mm_height = height;
2324 output->zoom.active = 0;
2325 output->zoom.increment = 0.05;
2326 output->zoom.level = 1.0;
2327 output->zoom.magnification = 1.0;
2328 output->zoom.trans_x = 0.0;
2329 output->zoom.trans_y = 0.0;
2331 output->flags = flags;
2332 weston_output_move(output, x, y);
2333 weston_output_damage(output);
2335 wl_list_init(&output->frame_callback_list);
2338 wl_display_add_global(c->wl_display, &wl_output_interface,
2339 output, bind_output);
2343 compositor_bind(struct wl_client *client,
2344 void *data, uint32_t version, uint32_t id)
2346 struct weston_compositor *compositor = data;
2348 wl_client_add_object(client, &wl_compositor_interface,
2349 &compositor_interface, id, compositor);
2353 weston_compositor_init(struct weston_compositor *ec, struct wl_display *display)
2355 struct wl_event_loop *loop;
2356 const char *extensions;
2358 ec->wl_display = display;
2359 wl_signal_init(&ec->destroy_signal);
2360 wl_signal_init(&ec->activate_signal);
2361 wl_signal_init(&ec->lock_signal);
2362 wl_signal_init(&ec->unlock_signal);
2363 ec->launcher_sock = weston_environment_get_fd("WESTON_LAUNCHER_SOCK");
2365 if (!wl_display_add_global(display, &wl_compositor_interface,
2366 ec, compositor_bind))
2369 wl_display_init_shm(display);
2371 ec->image_target_texture_2d =
2372 (void *) eglGetProcAddress("glEGLImageTargetTexture2DOES");
2373 ec->image_target_renderbuffer_storage = (void *)
2374 eglGetProcAddress("glEGLImageTargetRenderbufferStorageOES");
2375 ec->create_image = (void *) eglGetProcAddress("eglCreateImageKHR");
2376 ec->destroy_image = (void *) eglGetProcAddress("eglDestroyImageKHR");
2378 (void *) eglGetProcAddress("eglBindWaylandDisplayWL");
2379 ec->unbind_display =
2380 (void *) eglGetProcAddress("eglUnbindWaylandDisplayWL");
2382 extensions = (const char *) glGetString(GL_EXTENSIONS);
2383 if (!strstr(extensions, "GL_EXT_texture_format_BGRA8888")) {
2385 "GL_EXT_texture_format_BGRA8888 not available\n");
2389 if (!strstr(extensions, "GL_EXT_read_format_bgra")) {
2390 fprintf(stderr, "GL_EXT_read_format_bgra not available\n");
2394 if (strstr(extensions, "GL_EXT_unpack_subimage"))
2395 ec->has_unpack_subimage = 1;
2398 (const char *) eglQueryString(ec->display, EGL_EXTENSIONS);
2399 if (strstr(extensions, "EGL_WL_bind_wayland_display"))
2400 ec->has_bind_display = 1;
2401 if (ec->has_bind_display)
2402 ec->bind_display(ec->display, ec->wl_display);
2404 wl_list_init(&ec->surface_list);
2405 wl_list_init(&ec->layer_list);
2406 wl_list_init(&ec->input_device_list);
2407 wl_list_init(&ec->output_list);
2408 wl_list_init(&ec->binding_list);
2409 wl_list_init(&ec->animation_list);
2410 weston_spring_init(&ec->fade.spring, 30.0, 1.0, 1.0);
2411 ec->fade.animation.frame = fade_frame;
2412 wl_list_init(&ec->fade.animation.link);
2414 weston_layer_init(&ec->fade_layer, &ec->layer_list);
2415 weston_layer_init(&ec->cursor_layer, &ec->fade_layer.link);
2417 screenshooter_create(ec);
2419 wl_data_device_manager_init(ec->wl_display);
2421 glActiveTexture(GL_TEXTURE0);
2423 if (weston_shader_init(&ec->texture_shader,
2424 vertex_shader, texture_fragment_shader) < 0)
2426 if (weston_shader_init(&ec->solid_shader,
2427 vertex_shader, solid_fragment_shader) < 0)
2430 loop = wl_display_get_event_loop(ec->wl_display);
2431 ec->idle_source = wl_event_loop_add_timer(loop, idle_handler, ec);
2432 wl_event_source_timer_update(ec->idle_source, ec->idle_time * 1000);
2434 ec->input_loop = wl_event_loop_create();
2436 weston_compositor_schedule_repaint(ec);
2442 weston_compositor_shutdown(struct weston_compositor *ec)
2444 struct weston_output *output, *next;
2446 wl_event_source_remove(ec->idle_source);
2447 if (ec->input_loop_source)
2448 wl_event_source_remove(ec->input_loop_source);
2450 /* Destroy all outputs associated with this compositor */
2451 wl_list_for_each_safe(output, next, &ec->output_list, link)
2452 output->destroy(output);
2454 weston_binding_list_destroy_all(&ec->binding_list);
2456 wl_array_release(&ec->vertices);
2457 wl_array_release(&ec->indices);
2459 wl_event_loop_destroy(ec->input_loop);
2462 static int on_term_signal(int signal_number, void *data)
2464 struct wl_display *display = data;
2466 fprintf(stderr, "caught signal %d\n", signal_number);
2467 wl_display_terminate(display);
2473 on_segv_signal(int s, siginfo_t *siginfo, void *context)
2479 fprintf(stderr, "caught segv\n");
2481 count = backtrace(buffer, ARRAY_LENGTH(buffer));
2482 for (i = 0; i < count; i++) {
2483 dladdr(buffer[i], &info);
2484 fprintf(stderr, " [%016lx] %s (%s)\n",
2486 info.dli_sname ? info.dli_sname : "--",
2490 longjmp(segv_jmp_buf, 1);
2495 load_module(const char *name, const char *entrypoint, void **handle)
2497 char path[PATH_MAX];
2498 void *module, *init;
2501 snprintf(path, sizeof path, MODULEDIR "/%s", name);
2503 snprintf(path, sizeof path, "%s", name);
2505 module = dlopen(path, RTLD_LAZY);
2508 "failed to load module: %s\n", dlerror());
2512 init = dlsym(module, entrypoint);
2515 "failed to lookup init function: %s\n", dlerror());
2522 int main(int argc, char *argv[])
2524 struct wl_display *display;
2525 struct weston_compositor *ec;
2526 struct wl_event_source *signals[4];
2527 struct wl_event_loop *loop;
2528 struct sigaction segv_action;
2529 void *shell_module, *backend_module, *xserver_module;
2530 int (*shell_init)(struct weston_compositor *ec);
2531 int (*xserver_init)(struct weston_compositor *ec);
2532 struct weston_compositor
2533 *(*backend_init)(struct wl_display *display,
2534 int argc, char *argv[]);
2536 char *backend = NULL;
2538 int32_t idle_time = 300;
2540 char *socket_name = NULL;
2543 const struct config_key shell_config_keys[] = {
2544 { "type", CONFIG_KEY_STRING, &shell },
2547 const struct config_section cs[] = {
2549 shell_config_keys, ARRAY_LENGTH(shell_config_keys) },
2552 const struct weston_option core_options[] = {
2553 { WESTON_OPTION_STRING, "backend", 'B', &backend },
2554 { WESTON_OPTION_STRING, "socket", 'S', &socket_name },
2555 { WESTON_OPTION_INTEGER, "idle-time", 'i', &idle_time },
2556 { WESTON_OPTION_BOOLEAN, "xserver", 0, &xserver },
2559 argc = parse_options(core_options,
2560 ARRAY_LENGTH(core_options), argc, argv);
2562 display = wl_display_create();
2564 loop = wl_display_get_event_loop(display);
2565 signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
2567 signals[1] = wl_event_loop_add_signal(loop, SIGINT, on_term_signal,
2569 signals[2] = wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal,
2572 wl_list_init(&child_process_list);
2573 signals[3] = wl_event_loop_add_signal(loop, SIGCHLD, sigchld_handler,
2576 segv_action.sa_flags = SA_SIGINFO | SA_RESETHAND;
2577 segv_action.sa_sigaction = on_segv_signal;
2578 sigemptyset(&segv_action.sa_mask);
2579 sigaction(SIGSEGV, &segv_action, NULL);
2582 if (getenv("WAYLAND_DISPLAY"))
2583 backend = "wayland-backend.so";
2584 else if (getenv("DISPLAY"))
2585 backend = "x11-backend.so";
2586 else if (getenv("OPENWFD"))
2587 backend = "openwfd-backend.so";
2589 backend = "drm-backend.so";
2592 config_file = config_file_path("weston.ini");
2593 parse_config_file(config_file, cs, ARRAY_LENGTH(cs), shell);
2597 shell = "desktop-shell.so";
2599 backend_init = load_module(backend, "backend_init", &backend_module);
2603 shell_init = load_module(shell, "shell_init", &shell_module);
2607 ec = backend_init(display, argc, argv);
2609 fprintf(stderr, "failed to create compositor\n");
2613 for (i = 1; argv[i]; i++)
2614 fprintf(stderr, "unhandled option: %s\n", argv[i]);
2618 ec->option_idle_time = idle_time;
2619 ec->idle_time = idle_time;
2621 xserver_init = NULL;
2623 xserver_init = load_module("xserver-launcher.so",
2624 "weston_xserver_init",
2629 if (shell_init(ec) < 0)
2632 if (wl_display_add_socket(display, socket_name)) {
2633 fprintf(stderr, "failed to add socket: %m\n");
2637 weston_compositor_dpms_on(ec);
2638 weston_compositor_wake(ec);
2639 if (setjmp(segv_jmp_buf) == 0)
2640 wl_display_run(display);
2642 /* prevent further rendering while shutting down */
2643 ec->state = WESTON_COMPOSITOR_SLEEPING;
2645 wl_signal_emit(&ec->destroy_signal, ec);
2647 if (ec->has_bind_display)
2648 ec->unbind_display(ec->display, display);
2650 for (i = ARRAY_LENGTH(signals); i;)
2651 wl_event_source_remove(signals[--i]);
2654 wl_display_destroy(display);