2 * Copyright © 2010-2011 Intel Corporation
3 * Copyright © 2008-2011 Kristian Høgsberg
5 * Permission to use, copy, modify, distribute, and sell this software and
6 * its documentation for any purpose is hereby granted without fee, provided
7 * that the above copyright notice appear in all copies and that both that
8 * copyright notice and this permission notice appear in supporting
9 * documentation, and that the name of the copyright holders not be used in
10 * advertising or publicity pertaining to distribution of the software
11 * without specific, written prior permission. The copyright holders make
12 * no representations about the suitability of this software for any
13 * purpose. It is provided "as is" without express or implied warranty.
15 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
16 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
17 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
18 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
19 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
20 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
21 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
35 #include <sys/ioctl.h>
40 #include <linux/input.h>
45 #include "wayland-server.h"
46 #include "compositor.h"
48 /* The plan here is to generate a random anonymous socket name and
49 * advertise that through a service on the session dbus.
51 static const char *option_socket_name = NULL;
52 static int option_idle_time = 300;
54 static struct wl_list child_process_list;
57 sigchld_handler(int signal_number, void *data)
59 struct wlsc_process *p;
64 wl_list_for_each(p, &child_process_list, link) {
69 if (&p->link == &child_process_list) {
70 fprintf(stderr, "unknown child process exited\n");
74 wl_list_remove(&p->link);
75 p->cleanup(p, status);
81 wlsc_watch_process(struct wlsc_process *process)
83 wl_list_insert(&child_process_list, &process->link);
87 wlsc_matrix_init(struct wlsc_matrix *matrix)
89 static const struct wlsc_matrix identity = {
90 { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 }
93 memcpy(matrix, &identity, sizeof identity);
97 wlsc_matrix_multiply(struct wlsc_matrix *m, const struct wlsc_matrix *n)
99 struct wlsc_matrix tmp;
100 const GLfloat *row, *column;
104 for (i = 0; i < 16; i++) {
107 row = m->d + d.quot * 4;
108 column = n->d + d.rem;
109 for (j = 0; j < 4; j++)
110 tmp.d[i] += row[j] * column[j * 4];
112 memcpy(m, &tmp, sizeof tmp);
116 wlsc_matrix_translate(struct wlsc_matrix *matrix, GLfloat x, GLfloat y, GLfloat z)
118 struct wlsc_matrix translate = {
119 { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, x, y, z, 1 }
122 wlsc_matrix_multiply(matrix, &translate);
126 wlsc_matrix_scale(struct wlsc_matrix *matrix, GLfloat x, GLfloat y, GLfloat z)
128 struct wlsc_matrix scale = {
129 { x, 0, 0, 0, 0, y, 0, 0, 0, 0, z, 0, 0, 0, 0, 1 }
132 wlsc_matrix_multiply(matrix, &scale);
136 wlsc_matrix_transform(struct wlsc_matrix *matrix, struct wlsc_vector *v)
139 struct wlsc_vector t;
141 for (i = 0; i < 4; i++) {
143 for (j = 0; j < 4; j++)
144 t.f[i] += v->f[j] * matrix->d[i + j * 4];
151 wlsc_spring_init(struct wlsc_spring *spring,
152 double k, double current, double target)
155 spring->friction = 100.0;
156 spring->current = current;
157 spring->previous = current;
158 spring->target = target;
162 wlsc_spring_update(struct wlsc_spring *spring, uint32_t msec)
164 double force, v, current, step;
166 step = (msec - spring->timestamp) / 300.0;
167 spring->timestamp = msec;
169 current = spring->current;
170 v = current - spring->previous;
171 force = spring->k * (spring->target - current) / 10.0 +
172 (spring->previous - current) - v * spring->friction;
175 current + (current - spring->previous) + force * step * step;
176 spring->previous = current;
179 if (spring->current >= 1.0) {
180 #ifdef TWEENER_BOUNCE
181 spring->current = 2.0 - spring->current;
182 spring->previous = 2.0 - spring->previous;
184 spring->current = 1.0;
185 spring->previous = 1.0;
189 if (spring->current <= 0.0) {
190 spring->current = 0.0;
191 spring->previous = 0.0;
197 wlsc_spring_done(struct wlsc_spring *spring)
199 return fabs(spring->previous - spring->target) < 0.0002 &&
200 fabs(spring->current - spring->target) < 0.0002;
204 surface_handle_buffer_destroy(struct wl_listener *listener,
205 struct wl_resource *resource, uint32_t time)
207 struct wlsc_surface *es = container_of(listener, struct wlsc_surface,
208 buffer_destroy_listener);
209 struct wl_buffer *buffer = (struct wl_buffer *) resource;
211 if (es->buffer == buffer)
216 output_handle_scanout_buffer_destroy(struct wl_listener *listener,
217 struct wl_resource *resource,
220 struct wlsc_output *output =
221 container_of(listener, struct wlsc_output,
222 scanout_buffer_destroy_listener);
223 struct wl_buffer *buffer = (struct wl_buffer *) resource;
225 if (output->scanout_buffer == buffer)
226 output->scanout_buffer = NULL;
229 WL_EXPORT struct wlsc_surface *
230 wlsc_surface_create(struct wlsc_compositor *compositor,
231 int32_t x, int32_t y, int32_t width, int32_t height)
233 struct wlsc_surface *surface;
235 surface = malloc(sizeof *surface);
239 wl_list_init(&surface->link);
240 wl_list_init(&surface->buffer_link);
241 surface->map_type = WLSC_SURFACE_MAP_UNMAPPED;
243 glGenTextures(1, &surface->texture);
244 glBindTexture(GL_TEXTURE_2D, surface->texture);
245 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
246 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
248 surface->surface.resource.client = NULL;
250 surface->compositor = compositor;
251 surface->visual = WLSC_NONE_VISUAL;
252 surface->image = EGL_NO_IMAGE_KHR;
253 surface->saved_texture = 0;
256 surface->width = width;
257 surface->height = height;
259 surface->buffer = NULL;
260 surface->output = NULL;
262 pixman_region32_init(&surface->damage);
263 pixman_region32_init(&surface->opaque);
265 surface->buffer_destroy_listener.func = surface_handle_buffer_destroy;
266 wl_list_init(&surface->buffer_destroy_listener.link);
268 surface->transform = NULL;
274 wlsc_surface_damage_rectangle(struct wlsc_surface *surface,
275 int32_t x, int32_t y,
276 int32_t width, int32_t height)
278 struct wlsc_compositor *compositor = surface->compositor;
280 pixman_region32_union_rect(&surface->damage,
282 surface->x + x, surface->y + y,
284 wlsc_compositor_schedule_repaint(compositor);
288 wlsc_surface_damage(struct wlsc_surface *surface)
290 wlsc_surface_damage_rectangle(surface, 0, 0,
291 surface->width, surface->height);
295 wlsc_surface_damage_below(struct wlsc_surface *surface)
297 struct wlsc_surface *below;
299 if (surface->link.next == &surface->compositor->surface_list)
302 below = container_of(surface->link.next, struct wlsc_surface, link);
304 pixman_region32_union_rect(&below->damage,
306 surface->x, surface->y,
307 surface->width, surface->height);
308 wlsc_compositor_schedule_repaint(surface->compositor);
312 wlsc_surface_configure(struct wlsc_surface *surface,
313 int x, int y, int width, int height)
315 wlsc_surface_damage_below(surface);
319 surface->width = width;
320 surface->height = height;
322 wlsc_surface_assign_output(surface);
323 wlsc_surface_damage(surface);
325 pixman_region32_fini(&surface->opaque);
326 if (surface->visual == WLSC_RGB_VISUAL)
327 pixman_region32_init_rect(&surface->opaque,
328 surface->x, surface->y,
329 surface->width, surface->height);
331 pixman_region32_init(&surface->opaque);
335 wlsc_compositor_get_time(void)
339 gettimeofday(&tv, NULL);
341 return tv.tv_sec * 1000 + tv.tv_usec / 1000;
345 wlsc_compositor_repick(struct wlsc_compositor *compositor)
347 struct wlsc_input_device *device;
348 struct wlsc_surface *surface;
352 time = wlsc_compositor_get_time();
353 wl_list_for_each(device, &compositor->input_device_list, link) {
354 surface = pick_surface(&device->input_device, &sx, &sy);
355 wl_input_device_set_pointer_focus(&device->input_device,
358 device->input_device.x,
359 device->input_device.y,
365 destroy_surface(struct wl_resource *resource)
367 struct wlsc_surface *surface =
368 container_of(resource, struct wlsc_surface, surface.resource);
369 struct wlsc_compositor *compositor = surface->compositor;
371 wlsc_surface_damage_below(surface);
373 wl_list_remove(&surface->link);
374 wlsc_compositor_repick(compositor);
376 if (surface->saved_texture == 0)
377 glDeleteTextures(1, &surface->texture);
379 glDeleteTextures(1, &surface->saved_texture);
382 wl_list_remove(&surface->buffer_destroy_listener.link);
384 if (surface->image != EGL_NO_IMAGE_KHR)
385 compositor->destroy_image(compositor->display,
388 wl_list_remove(&surface->buffer_link);
394 wlsc_buffer_attach(struct wl_buffer *buffer, struct wl_surface *surface)
396 struct wlsc_surface *es = (struct wlsc_surface *) surface;
397 struct wlsc_compositor *ec = es->compositor;
398 struct wl_list *surfaces_attached_to;
400 if (es->saved_texture != 0)
401 es->texture = es->saved_texture;
403 glBindTexture(GL_TEXTURE_2D, es->texture);
405 if (wl_buffer_is_shm(buffer)) {
406 /* Unbind any EGLImage texture that may be bound, so we don't
408 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
409 0, 0, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, NULL);
410 es->pitch = wl_shm_buffer_get_stride(buffer) / 4;
411 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
412 es->pitch, buffer->height, 0,
413 GL_BGRA_EXT, GL_UNSIGNED_BYTE,
414 wl_shm_buffer_get_data(buffer));
416 switch (wl_shm_buffer_get_format(buffer)) {
417 case WL_SHM_FORMAT_ARGB32:
418 es->visual = WLSC_ARGB_VISUAL;
420 case WL_SHM_FORMAT_PREMULTIPLIED_ARGB32:
421 es->visual = WLSC_PREMUL_ARGB_VISUAL;
423 case WL_SHM_FORMAT_XRGB32:
424 es->visual = WLSC_RGB_VISUAL;
428 surfaces_attached_to = buffer->user_data;
430 wl_list_remove(&es->buffer_link);
431 wl_list_insert(surfaces_attached_to, &es->buffer_link);
433 if (es->image != EGL_NO_IMAGE_KHR)
434 ec->destroy_image(ec->display, es->image);
435 es->image = ec->create_image(ec->display, NULL,
436 EGL_WAYLAND_BUFFER_WL,
439 ec->image_target_texture_2d(GL_TEXTURE_2D, es->image);
441 /* FIXME: we need to get the visual from the wl_buffer */
442 es->visual = WLSC_PREMUL_ARGB_VISUAL;
443 es->pitch = es->width;
448 wlsc_sprite_attach(struct wlsc_sprite *sprite, struct wl_surface *surface)
450 struct wlsc_surface *es = (struct wlsc_surface *) surface;
451 struct wlsc_compositor *ec = es->compositor;
453 es->pitch = es->width;
454 es->image = sprite->image;
455 if (sprite->image != EGL_NO_IMAGE_KHR) {
456 glBindTexture(GL_TEXTURE_2D, es->texture);
457 ec->image_target_texture_2d(GL_TEXTURE_2D, es->image);
459 if (es->saved_texture == 0)
460 es->saved_texture = es->texture;
461 es->texture = sprite->texture;
464 es->visual = sprite->visual;
471 SPRITE_USE_CURSOR = (1 << 0),
474 static struct wlsc_sprite *
475 create_sprite_from_png(struct wlsc_compositor *ec,
476 const char *filename, uint32_t usage)
479 struct wlsc_sprite *sprite;
480 int32_t width, height;
483 pixels = wlsc_load_image(filename, &width, &height, &stride);
487 sprite = malloc(sizeof *sprite);
488 if (sprite == NULL) {
493 sprite->visual = WLSC_PREMUL_ARGB_VISUAL;
494 sprite->width = width;
495 sprite->height = height;
496 sprite->image = EGL_NO_IMAGE_KHR;
498 if (usage & SPRITE_USE_CURSOR && ec->create_cursor_image != NULL)
499 sprite->image = ec->create_cursor_image(ec, width, height);
501 glGenTextures(1, &sprite->texture);
502 glBindTexture(GL_TEXTURE_2D, sprite->texture);
503 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
504 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
505 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
506 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
508 if (sprite->image != EGL_NO_IMAGE_KHR) {
509 ec->image_target_texture_2d(GL_TEXTURE_2D, sprite->image);
510 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height,
511 GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
513 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, width, height, 0,
514 GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
522 static const struct {
523 const char *filename;
524 int hotspot_x, hotspot_y;
525 } pointer_images[] = {
526 { DATADIR "/wayland/bottom_left_corner.png", 6, 30 },
527 { DATADIR "/wayland/bottom_right_corner.png", 28, 28 },
528 { DATADIR "/wayland/bottom_side.png", 16, 20 },
529 { DATADIR "/wayland/grabbing.png", 20, 17 },
530 { DATADIR "/wayland/left_ptr.png", 10, 5 },
531 { DATADIR "/wayland/left_side.png", 10, 20 },
532 { DATADIR "/wayland/right_side.png", 30, 19 },
533 { DATADIR "/wayland/top_left_corner.png", 8, 8 },
534 { DATADIR "/wayland/top_right_corner.png", 26, 8 },
535 { DATADIR "/wayland/top_side.png", 18, 8 },
536 { DATADIR "/wayland/xterm.png", 15, 15 }
540 create_pointer_images(struct wlsc_compositor *ec)
544 count = ARRAY_LENGTH(pointer_images);
545 ec->pointer_sprites = malloc(count * sizeof *ec->pointer_sprites);
546 for (i = 0; i < count; i++) {
547 ec->pointer_sprites[i] =
548 create_sprite_from_png(ec,
549 pointer_images[i].filename,
555 texture_region(struct wlsc_surface *es, pixman_region32_t *region)
557 struct wlsc_compositor *ec = es->compositor;
558 GLfloat *v, inv_width, inv_height;
559 pixman_box32_t *rectangles;
563 rectangles = pixman_region32_rectangles(region, &n);
564 v = wl_array_add(&ec->vertices, n * 16 * sizeof *v);
565 p = wl_array_add(&ec->indices, n * 6 * sizeof *p);
566 inv_width = 1.0 / es->pitch;
567 inv_height = 1.0 / es->height;
569 for (i = 0; i < n; i++, v += 16, p += 6) {
570 v[ 0] = rectangles[i].x1;
571 v[ 1] = rectangles[i].y1;
572 v[ 2] = (GLfloat) (rectangles[i].x1 - es->x) * inv_width;
573 v[ 3] = (GLfloat) (rectangles[i].y1 - es->y) * inv_height;
575 v[ 4] = rectangles[i].x1;
576 v[ 5] = rectangles[i].y2;
578 v[ 7] = (GLfloat) (rectangles[i].y2 - es->y) * inv_height;
580 v[ 8] = rectangles[i].x2;
581 v[ 9] = rectangles[i].y1;
582 v[10] = (GLfloat) (rectangles[i].x2 - es->x) * inv_width;
585 v[12] = rectangles[i].x2;
586 v[13] = rectangles[i].y2;
602 transform_vertex(struct wlsc_surface *surface,
603 GLfloat x, GLfloat y, GLfloat u, GLfloat v, GLfloat *r)
605 struct wlsc_vector t;
612 wlsc_matrix_transform(&surface->transform->matrix, &t);
621 texture_transformed_surface(struct wlsc_surface *es)
623 struct wlsc_compositor *ec = es->compositor;
627 v = wl_array_add(&ec->vertices, 16 * sizeof *v);
628 p = wl_array_add(&ec->indices, 6 * sizeof *p);
630 transform_vertex(es, es->x, es->y, 0.0, 0.0, &v[0]);
631 transform_vertex(es, es->x, es->y + es->height, 0.0, 1.0, &v[4]);
632 transform_vertex(es, es->x + es->width, es->y, 1.0, 0.0, &v[8]);
633 transform_vertex(es, es->x + es->width, es->y + es->height,
647 wlsc_surface_draw(struct wlsc_surface *es,
648 struct wlsc_output *output, pixman_region32_t *clip)
650 struct wlsc_compositor *ec = es->compositor;
652 pixman_region32_t repaint;
656 pixman_region32_init_rect(&repaint,
657 es->x, es->y, es->width, es->height);
658 pixman_region32_intersect(&repaint, &repaint, clip);
659 if (!pixman_region32_not_empty(&repaint))
662 switch (es->visual) {
663 case WLSC_ARGB_VISUAL:
664 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
667 case WLSC_PREMUL_ARGB_VISUAL:
668 glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
671 case WLSC_RGB_VISUAL:
675 fprintf(stderr, "bogus visual\n");
679 if (es->transform == NULL) {
681 n = texture_region(es, &repaint);
684 n = texture_transformed_surface(es);
687 glBindTexture(GL_TEXTURE_2D, es->texture);
688 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
689 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
691 v = ec->vertices.data;
692 glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[0]);
693 glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[2]);
694 glEnableVertexAttribArray(0);
695 glEnableVertexAttribArray(1);
696 glDrawElements(GL_TRIANGLES, n * 6, GL_UNSIGNED_INT, ec->indices.data);
698 ec->vertices.size = 0;
699 ec->indices.size = 0;
700 pixman_region32_fini(&repaint);
704 wlsc_surface_raise(struct wlsc_surface *surface)
706 struct wlsc_compositor *compositor = surface->compositor;
708 wl_list_remove(&surface->link);
709 wl_list_insert(&compositor->surface_list, &surface->link);
710 wlsc_compositor_repick(compositor);
711 wlsc_surface_damage(surface);
715 wlsc_compositor_damage_all(struct wlsc_compositor *compositor)
717 struct wlsc_output *output;
719 wl_list_for_each(output, &compositor->output_list, link)
720 wlsc_output_damage(output);
724 wlsc_buffer_post_release(struct wl_buffer *buffer)
726 if (buffer == NULL || --buffer->busy_count > 0)
729 assert(buffer->resource.client != NULL);
730 wl_resource_post_event(&buffer->resource, WL_BUFFER_RELEASE);
734 wlsc_output_damage(struct wlsc_output *output)
736 struct wlsc_compositor *compositor = output->compositor;
738 pixman_region32_union(&compositor->damage,
739 &compositor->damage, &output->region);
740 wlsc_compositor_schedule_repaint(compositor);
744 fade_frame(struct wlsc_animation *animation,
745 struct wlsc_output *output, uint32_t msecs)
747 struct wlsc_compositor *compositor =
748 container_of(animation,
749 struct wlsc_compositor, fade.animation);
751 wlsc_spring_update(&compositor->fade.spring, msecs);
752 if (wlsc_spring_done(&compositor->fade.spring)) {
753 if (compositor->fade.spring.current > 0.999) {
754 compositor->state = WLSC_COMPOSITOR_SLEEPING;
755 compositor->shell->lock(compositor->shell);
757 compositor->fade.spring.current =
758 compositor->fade.spring.target;
759 wl_list_remove(&animation->link);
760 wl_list_init(&animation->link);
763 wlsc_output_damage(output);
767 fade_output(struct wlsc_output *output,
768 GLfloat tint, pixman_region32_t *region)
770 struct wlsc_compositor *compositor = output->compositor;
771 struct wlsc_surface surface;
772 GLfloat color[4] = { 0.0, 0.0, 0.0, tint };
774 surface.compositor = compositor;
775 surface.x = output->x;
776 surface.y = output->y;
777 surface.pitch = output->current->width;
778 surface.width = output->current->width;
779 surface.height = output->current->height;
780 surface.texture = GL_NONE;
781 surface.transform = NULL;
784 surface.visual = WLSC_PREMUL_ARGB_VISUAL;
786 surface.visual = WLSC_RGB_VISUAL;
788 glUseProgram(compositor->solid_shader.program);
789 glUniformMatrix4fv(compositor->solid_shader.proj_uniform,
790 1, GL_FALSE, output->matrix.d);
791 glUniform4fv(compositor->solid_shader.color_uniform, 1, color);
792 wlsc_surface_draw(&surface, output, region);
796 wlsc_output_set_cursor(struct wlsc_output *output,
797 struct wl_input_device *dev, int force_sw)
799 struct wlsc_compositor *ec = output->compositor;
800 struct wlsc_input_device *device = (struct wlsc_input_device *) dev;
801 pixman_region32_t cursor_region;
802 int use_hardware_cursor = 1, prior_was_hardware;
804 pixman_region32_init_rect(&cursor_region,
805 device->sprite->x, device->sprite->y,
806 device->sprite->width,
807 device->sprite->height);
809 pixman_region32_intersect(&cursor_region, &cursor_region, &output->region);
811 if (!pixman_region32_not_empty(&cursor_region)) {
812 output->set_hardware_cursor(output, NULL);
816 prior_was_hardware = wl_list_empty(&device->sprite->link);
817 if (force_sw || output->set_hardware_cursor(output, device) < 0) {
818 if (prior_was_hardware) {
819 wlsc_surface_damage(device->sprite);
820 output->set_hardware_cursor(output, NULL);
822 use_hardware_cursor = 0;
823 } else if (!prior_was_hardware) {
824 wlsc_surface_damage_below(device->sprite);
827 /* Remove always to be on top. */
828 wl_list_remove(&device->sprite->link);
829 if (!use_hardware_cursor && ec->focus)
830 wl_list_insert(&ec->surface_list, &device->sprite->link);
832 wl_list_init(&device->sprite->link);
835 pixman_region32_fini(&cursor_region);
839 wlsc_output_repaint(struct wlsc_output *output)
841 struct wlsc_compositor *ec = output->compositor;
842 struct wlsc_surface *es;
843 pixman_region32_t opaque, new_damage, total_damage, repaint;
845 output->prepare_render(output);
847 glViewport(0, 0, output->current->width, output->current->height);
849 glUseProgram(ec->texture_shader.program);
850 glUniformMatrix4fv(ec->texture_shader.proj_uniform,
851 1, GL_FALSE, output->matrix.d);
852 glUniform1i(ec->texture_shader.tex_uniform, 0);
854 wlsc_output_set_cursor(output, ec->input_device,
855 ec->fade.spring.current >= 0.001);
857 pixman_region32_init(&new_damage);
858 pixman_region32_copy(&new_damage, &ec->damage);
859 pixman_region32_init(&opaque);
861 wl_list_for_each(es, &ec->surface_list, link) {
862 pixman_region32_subtract(&es->damage, &es->damage, &opaque);
863 pixman_region32_union(&new_damage, &new_damage, &es->damage);
864 pixman_region32_union(&opaque, &opaque, &es->opaque);
867 pixman_region32_subtract(&ec->damage, &ec->damage, &output->region);
869 pixman_region32_init(&total_damage);
870 pixman_region32_union(&total_damage, &new_damage,
871 &output->previous_damage);
872 pixman_region32_intersect(&output->previous_damage,
873 &new_damage, &output->region);
875 pixman_region32_fini(&opaque);
876 pixman_region32_fini(&new_damage);
878 es = container_of(ec->surface_list.next, struct wlsc_surface, link);
880 if (es->visual == WLSC_RGB_VISUAL &&
881 output->prepare_scanout_surface(output, es) == 0) {
882 /* We're drawing nothing now,
883 * draw the damaged regions later. */
884 pixman_region32_union(&ec->damage, &ec->damage, &total_damage);
886 output->scanout_buffer = es->buffer;
887 output->scanout_buffer->busy_count++;
889 wl_list_remove(&output->scanout_buffer_destroy_listener.link);
890 wl_list_insert(output->scanout_buffer->resource.destroy_listener_list.prev,
891 &output->scanout_buffer_destroy_listener.link);
896 if (es->fullscreen_output == output) {
897 if (es->width < output->current->width ||
898 es->height < output->current->height)
899 glClear(GL_COLOR_BUFFER_BIT);
900 wlsc_surface_draw(es, output, &total_damage);
902 wl_list_for_each(es, &ec->surface_list, link) {
903 pixman_region32_copy(&es->damage, &total_damage);
904 pixman_region32_subtract(&total_damage, &total_damage, &es->opaque);
907 wl_list_for_each_reverse(es, &ec->surface_list, link) {
908 pixman_region32_init(&repaint);
909 pixman_region32_intersect(&repaint, &output->region,
911 wlsc_surface_draw(es, output, &repaint);
912 pixman_region32_subtract(&es->damage,
913 &es->damage, &output->region);
917 if (ec->fade.spring.current > 0.001)
918 fade_output(output, ec->fade.spring.current, &total_damage);
921 struct wlsc_frame_callback {
922 struct wl_resource resource;
927 repaint(void *data, int msecs)
929 struct wlsc_output *output = data;
930 struct wlsc_compositor *compositor = output->compositor;
931 struct wlsc_animation *animation, *next;
932 struct wlsc_frame_callback *cb, *cnext;
934 wlsc_output_repaint(output);
935 output->repaint_needed = 0;
936 output->repaint_scheduled = 1;
937 output->present(output);
939 wl_list_for_each_safe(cb, cnext, &output->frame_callback_list, link) {
940 wl_resource_post_event(&cb->resource, WL_CALLBACK_DONE, msecs);
941 wl_resource_destroy(&cb->resource, 0);
944 wl_list_for_each_safe(animation, next,
945 &compositor->animation_list, link)
946 animation->frame(animation, output, msecs);
950 idle_repaint(void *data)
952 repaint(data, wlsc_compositor_get_time());
956 wlsc_output_finish_frame(struct wlsc_output *output, int msecs)
958 wlsc_buffer_post_release(output->scanout_buffer);
959 output->scanout_buffer = NULL;
960 output->repaint_scheduled = 0;
962 if (output->repaint_needed)
963 repaint(output, msecs);
967 wlsc_compositor_schedule_repaint(struct wlsc_compositor *compositor)
969 struct wlsc_output *output;
970 struct wl_event_loop *loop;
972 if (compositor->state == WLSC_COMPOSITOR_SLEEPING)
975 loop = wl_display_get_event_loop(compositor->wl_display);
976 wl_list_for_each(output, &compositor->output_list, link) {
977 output->repaint_needed = 1;
978 if (output->repaint_scheduled)
981 wl_event_loop_add_idle(loop, idle_repaint, output);
982 output->repaint_scheduled = 1;
987 wlsc_compositor_fade(struct wlsc_compositor *compositor, float tint)
991 done = wlsc_spring_done(&compositor->fade.spring);
992 compositor->fade.spring.target = tint;
993 if (wlsc_spring_done(&compositor->fade.spring))
997 compositor->fade.spring.timestamp =
998 wlsc_compositor_get_time();
1000 wlsc_compositor_damage_all(compositor);
1001 if (wl_list_empty(&compositor->fade.animation.link))
1002 wl_list_insert(compositor->animation_list.prev,
1003 &compositor->fade.animation.link);
1007 surface_destroy(struct wl_client *client, struct wl_resource *resource)
1009 wl_resource_destroy(resource, wlsc_compositor_get_time());
1013 wlsc_surface_assign_output(struct wlsc_surface *es)
1015 struct wlsc_compositor *ec = es->compositor;
1016 struct wlsc_output *output;
1017 pixman_region32_t region;
1022 wl_list_for_each(output, &ec->output_list, link) {
1023 pixman_region32_init_rect(®ion,
1024 es->x, es->y, es->width, es->height);
1025 pixman_region32_intersect(®ion, ®ion, &output->region);
1027 e = pixman_region32_extents(®ion);
1028 area = (e->x2 - e->x1) * (e->y2 - e->y1);
1031 es->output = output;
1038 surface_attach(struct wl_client *client,
1039 struct wl_resource *resource,
1040 struct wl_resource *buffer_resource, int32_t x, int32_t y)
1042 struct wlsc_surface *es = resource->data;
1043 struct wl_buffer *buffer = buffer_resource->data;
1046 buffer->busy_count++;
1047 wlsc_buffer_post_release(es->buffer);
1049 es->buffer = buffer;
1050 wl_list_remove(&es->buffer_destroy_listener.link);
1051 wl_list_insert(es->buffer->resource.destroy_listener_list.prev,
1052 &es->buffer_destroy_listener.link);
1054 if (es->visual == WLSC_NONE_VISUAL) {
1055 wl_list_insert(&es->compositor->surface_list, &es->link);
1059 if (x != 0 || y != 0 ||
1060 es->width != buffer->width || es->height != buffer->height) {
1061 wlsc_surface_configure(es, es->x + x, es->y + y,
1062 buffer->width, buffer->height);
1066 wlsc_buffer_attach(buffer, &es->surface);
1068 es->compositor->shell->attach(es->compositor->shell, es);
1071 wlsc_compositor_repick(es->compositor);
1075 surface_damage(struct wl_client *client,
1076 struct wl_resource *resource,
1077 int32_t x, int32_t y, int32_t width, int32_t height)
1079 struct wlsc_surface *es = resource->data;
1081 wlsc_surface_damage_rectangle(es, x, y, width, height);
1085 destroy_frame_callback(struct wl_resource *resource)
1087 struct wlsc_frame_callback *cb = resource->data;
1089 wl_list_remove(&cb->link);
1094 surface_frame(struct wl_client *client,
1095 struct wl_resource *resource, uint32_t callback)
1097 struct wlsc_frame_callback *cb;
1098 struct wlsc_surface *es = resource->data;
1100 cb = malloc(sizeof *cb);
1102 wl_resource_post_no_memory(resource);
1106 cb->resource.object.interface = &wl_callback_interface;
1107 cb->resource.object.id = callback;
1108 cb->resource.destroy = destroy_frame_callback;
1109 cb->resource.client = client;
1110 cb->resource.data = cb;
1112 wl_client_add_resource(client, &cb->resource);
1115 wl_list_insert(es->output->frame_callback_list.prev,
1118 wl_list_init(&cb->link);
1119 wl_resource_destroy(&cb->resource, 0);
1123 const static struct wl_surface_interface surface_interface = {
1131 wlsc_input_device_attach(struct wlsc_input_device *device,
1132 int x, int y, int width, int height)
1134 wlsc_surface_damage_below(device->sprite);
1136 device->hotspot_x = x;
1137 device->hotspot_y = y;
1139 device->sprite->x = device->input_device.x - device->hotspot_x;
1140 device->sprite->y = device->input_device.y - device->hotspot_y;
1141 device->sprite->width = width;
1142 device->sprite->height = height;
1144 wlsc_surface_damage(device->sprite);
1148 wlsc_input_device_attach_buffer(struct wlsc_input_device *device,
1149 struct wl_buffer *buffer, int x, int y)
1151 wlsc_buffer_attach(buffer, &device->sprite->surface);
1152 wlsc_input_device_attach(device, x, y, buffer->width, buffer->height);
1156 wlsc_input_device_attach_sprite(struct wlsc_input_device *device,
1157 struct wlsc_sprite *sprite, int x, int y)
1159 wlsc_sprite_attach(sprite, &device->sprite->surface);
1160 wlsc_input_device_attach(device, x, y, sprite->width, sprite->height);
1164 wlsc_input_device_set_pointer_image(struct wlsc_input_device *device,
1165 enum wlsc_pointer_type type)
1167 struct wlsc_compositor *compositor =
1168 (struct wlsc_compositor *) device->input_device.compositor;
1170 wlsc_input_device_attach_sprite(device,
1171 compositor->pointer_sprites[type],
1172 pointer_images[type].hotspot_x,
1173 pointer_images[type].hotspot_y);
1177 compositor_create_surface(struct wl_client *client,
1178 struct wl_resource *resource, uint32_t id)
1180 struct wlsc_compositor *ec = resource->data;
1181 struct wlsc_surface *surface;
1183 surface = wlsc_surface_create(ec, 0, 0, 0, 0);
1184 if (surface == NULL) {
1185 wl_resource_post_no_memory(resource);
1189 surface->surface.resource.destroy = destroy_surface;
1191 surface->surface.resource.object.id = id;
1192 surface->surface.resource.object.interface = &wl_surface_interface;
1193 surface->surface.resource.object.implementation =
1194 (void (**)(void)) &surface_interface;
1195 surface->surface.resource.data = surface;
1197 wl_client_add_resource(client, &surface->surface.resource);
1200 const static struct wl_compositor_interface compositor_interface = {
1201 compositor_create_surface,
1205 wlsc_surface_transform(struct wlsc_surface *surface,
1206 int32_t x, int32_t y, int32_t *sx, int32_t *sy)
1208 *sx = x - surface->x;
1209 *sy = y - surface->y;
1212 WL_EXPORT struct wlsc_surface *
1213 pick_surface(struct wl_input_device *device, int32_t *sx, int32_t *sy)
1215 struct wlsc_compositor *ec =
1216 (struct wlsc_compositor *) device->compositor;
1217 struct wlsc_surface *es;
1219 wl_list_for_each(es, &ec->surface_list, link) {
1220 if (es->surface.resource.client == NULL)
1222 wlsc_surface_transform(es, device->x, device->y, sx, sy);
1223 if (0 <= *sx && *sx < es->width &&
1224 0 <= *sy && *sy < es->height)
1233 implicit_grab_motion(struct wl_grab *grab,
1234 uint32_t time, int32_t x, int32_t y)
1236 struct wlsc_input_device *device =
1237 (struct wlsc_input_device *) grab->input_device;
1238 struct wlsc_surface *es =
1239 (struct wlsc_surface *) device->input_device.pointer_focus;
1241 struct wl_resource *resource;
1243 resource = grab->input_device->pointer_focus_resource;
1245 wlsc_surface_transform(es, x, y, &sx, &sy);
1246 wl_resource_post_event(resource, WL_INPUT_DEVICE_MOTION,
1247 time, x, y, sx, sy);
1252 implicit_grab_button(struct wl_grab *grab,
1253 uint32_t time, int32_t button, int32_t state)
1255 struct wl_resource *resource;
1257 resource = grab->input_device->pointer_focus_resource;
1259 wl_resource_post_event(resource, WL_INPUT_DEVICE_BUTTON,
1260 time, button, state);
1264 implicit_grab_end(struct wl_grab *grab, uint32_t time)
1268 static const struct wl_grab_interface implicit_grab_interface = {
1269 implicit_grab_motion,
1270 implicit_grab_button,
1275 wlsc_compositor_wake(struct wlsc_compositor *compositor)
1277 if (compositor->idle_inhibit)
1280 wlsc_compositor_fade(compositor, 0.0);
1281 compositor->state = WLSC_COMPOSITOR_ACTIVE;
1283 wl_event_source_timer_update(compositor->idle_source,
1284 option_idle_time * 1000);
1288 wlsc_compositor_idle_inhibit(struct wlsc_compositor *compositor)
1290 wlsc_compositor_wake(compositor);
1291 compositor->idle_inhibit++;
1295 wlsc_compositor_idle_release(struct wlsc_compositor *compositor)
1297 compositor->idle_inhibit--;
1298 wlsc_compositor_wake(compositor);
1302 idle_handler(void *data)
1304 struct wlsc_compositor *compositor = data;
1306 if (compositor->idle_inhibit)
1309 wlsc_compositor_fade(compositor, 1.0);
1315 notify_motion(struct wl_input_device *device, uint32_t time, int x, int y)
1317 struct wlsc_surface *es;
1318 struct wlsc_compositor *ec =
1319 (struct wlsc_compositor *) device->compositor;
1320 struct wlsc_output *output;
1321 const struct wl_grab_interface *interface;
1322 struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
1324 int x_valid = 0, y_valid = 0;
1325 int min_x = INT_MAX, min_y = INT_MAX, max_x = INT_MIN, max_y = INT_MIN;
1327 wlsc_compositor_wake(ec);
1329 wl_list_for_each(output, &ec->output_list, link) {
1330 if (output->x <= x && x <= output->x + output->current->width)
1333 if (output->y <= y && y <= output->y + output->current->height)
1336 /* FIXME: calculate this only on output addition/deletion */
1337 if (output->x < min_x)
1339 if (output->y < min_y)
1342 if (output->x + output->current->width > max_x)
1343 max_x = output->x + output->current->width;
1344 if (output->y + output->current->height > max_y)
1345 max_y = output->y + output->current->height;
1351 else if (x >= max_x)
1357 else if (y >= max_y)
1365 interface = device->grab->interface;
1366 interface->motion(device->grab, time, x, y);
1368 es = pick_surface(device, &sx, &sy);
1369 wl_input_device_set_pointer_focus(device,
1371 time, x, y, sx, sy);
1372 if (device->pointer_focus_resource)
1373 wl_resource_post_event(device->pointer_focus_resource,
1374 WL_INPUT_DEVICE_MOTION,
1375 time, x, y, sx, sy);
1378 wlsc_surface_damage_below(wd->sprite);
1380 wd->sprite->x = device->x - wd->hotspot_x;
1381 wd->sprite->y = device->y - wd->hotspot_y;
1383 wlsc_surface_damage(wd->sprite);
1387 wlsc_surface_activate(struct wlsc_surface *surface,
1388 struct wlsc_input_device *device, uint32_t time)
1390 struct wlsc_shell *shell = surface->compositor->shell;
1392 wlsc_surface_raise(surface);
1393 if (device->selection)
1394 shell->set_selection_focus(shell,
1396 &surface->surface, time);
1398 wl_input_device_set_keyboard_focus(&device->input_device,
1403 struct wlsc_binding {
1407 wlsc_binding_handler_t handler;
1409 struct wl_list link;
1413 notify_button(struct wl_input_device *device,
1414 uint32_t time, int32_t button, int32_t state)
1416 struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
1417 struct wlsc_compositor *compositor =
1418 (struct wlsc_compositor *) device->compositor;
1419 struct wlsc_binding *b;
1420 struct wlsc_surface *surface =
1421 (struct wlsc_surface *) device->pointer_focus;
1425 wlsc_compositor_idle_inhibit(compositor);
1427 wlsc_compositor_idle_release(compositor);
1429 if (state && surface && device->grab == NULL) {
1430 compositor->shell->activate(compositor->shell,
1432 wl_input_device_start_grab(device,
1433 &device->implicit_grab,
1437 wl_list_for_each(b, &compositor->binding_list, link) {
1438 if (b->button == button &&
1439 b->modifier == wd->modifier_state && state) {
1440 b->handler(&wd->input_device,
1441 time, 0, button, state, b->data);
1447 device->grab->interface->button(device->grab, time,
1450 if (!state && device->grab && device->grab_button == button) {
1451 wl_input_device_end_grab(device, time);
1452 surface = pick_surface(device, &sx, &sy);
1453 wl_input_device_set_pointer_focus(device, &surface->surface,
1454 time, device->x, device->y,
1460 terminate_binding(struct wl_input_device *device, uint32_t time,
1461 uint32_t key, uint32_t button, uint32_t state, void *data)
1463 struct wlsc_compositor *compositor = data;
1466 wl_display_terminate(compositor->wl_display);
1469 WL_EXPORT struct wlsc_binding *
1470 wlsc_compositor_add_binding(struct wlsc_compositor *compositor,
1471 uint32_t key, uint32_t button, uint32_t modifier,
1472 wlsc_binding_handler_t handler, void *data)
1474 struct wlsc_binding *binding;
1476 binding = malloc(sizeof *binding);
1477 if (binding == NULL)
1481 binding->button = button;
1482 binding->modifier = modifier;
1483 binding->handler = handler;
1484 binding->data = data;
1485 wl_list_insert(compositor->binding_list.prev, &binding->link);
1491 wlsc_binding_destroy(struct wlsc_binding *binding)
1493 wl_list_remove(&binding->link);
1498 update_modifier_state(struct wlsc_input_device *device,
1499 uint32_t key, uint32_t state)
1506 modifier = MODIFIER_CTRL;
1511 modifier = MODIFIER_ALT;
1516 modifier = MODIFIER_SUPER;
1525 device->modifier_state |= modifier;
1527 device->modifier_state &= ~modifier;
1531 notify_key(struct wl_input_device *device,
1532 uint32_t time, uint32_t key, uint32_t state)
1534 struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
1535 struct wlsc_compositor *compositor =
1536 (struct wlsc_compositor *) device->compositor;
1538 struct wlsc_binding *b;
1541 wlsc_compositor_idle_inhibit(compositor);
1543 wlsc_compositor_idle_release(compositor);
1545 wl_list_for_each(b, &compositor->binding_list, link) {
1546 if (b->key == key &&
1547 b->modifier == wd->modifier_state) {
1548 b->handler(&wd->input_device,
1549 time, key, 0, state, b->data);
1554 update_modifier_state(wd, key, state);
1555 end = device->keys.data + device->keys.size;
1556 for (k = device->keys.data; k < end; k++) {
1560 device->keys.size = (void *) end - device->keys.data;
1562 k = wl_array_add(&device->keys, sizeof *k);
1566 if (device->keyboard_focus_resource)
1567 wl_resource_post_event(device->keyboard_focus_resource,
1568 WL_INPUT_DEVICE_KEY, time, key, state);
1572 notify_pointer_focus(struct wl_input_device *device,
1573 uint32_t time, struct wlsc_output *output,
1574 int32_t x, int32_t y)
1576 struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
1577 struct wlsc_compositor *compositor =
1578 (struct wlsc_compositor *) device->compositor;
1579 struct wlsc_surface *es;
1585 es = pick_surface(device, &sx, &sy);
1586 wl_input_device_set_pointer_focus(device,
1588 time, x, y, sx, sy);
1590 compositor->focus = 1;
1592 wd->sprite->x = device->x - wd->hotspot_x;
1593 wd->sprite->y = device->y - wd->hotspot_y;
1595 wl_input_device_set_pointer_focus(device, NULL,
1597 compositor->focus = 0;
1600 wlsc_surface_damage(wd->sprite);
1604 notify_keyboard_focus(struct wl_input_device *device,
1605 uint32_t time, struct wlsc_output *output,
1606 struct wl_array *keys)
1608 struct wlsc_input_device *wd =
1609 (struct wlsc_input_device *) device;
1610 struct wlsc_compositor *compositor =
1611 (struct wlsc_compositor *) device->compositor;
1612 struct wlsc_surface *es;
1615 if (!wl_list_empty(&compositor->surface_list))
1616 es = container_of(compositor->surface_list.next,
1617 struct wlsc_surface, link);
1622 wl_array_copy(&wd->input_device.keys, keys);
1623 wd->modifier_state = 0;
1624 end = device->keys.data + device->keys.size;
1625 for (k = device->keys.data; k < end; k++) {
1626 wlsc_compositor_idle_inhibit(compositor);
1627 update_modifier_state(wd, *k, 1);
1630 if (es && es->surface.resource.client)
1631 wl_input_device_set_keyboard_focus(&wd->input_device,
1632 &es->surface, time);
1634 end = device->keys.data + device->keys.size;
1635 for (k = device->keys.data; k < end; k++)
1636 wlsc_compositor_idle_release(compositor);
1638 wd->modifier_state = 0;
1639 wl_input_device_set_keyboard_focus(&wd->input_device,
1646 input_device_attach(struct wl_client *client,
1647 struct wl_resource *resource,
1649 struct wl_resource *buffer_resource, int32_t x, int32_t y)
1651 struct wlsc_input_device *device = resource->data;
1652 struct wl_buffer *buffer;
1654 if (time < device->input_device.pointer_focus_time)
1656 if (device->input_device.pointer_focus == NULL)
1658 if (device->input_device.pointer_focus->resource.client != client)
1661 if (buffer_resource) {
1662 buffer = buffer_resource->data;
1663 wlsc_input_device_attach_buffer(device, buffer, x, y);
1665 wlsc_input_device_set_pointer_image(device,
1666 WLSC_POINTER_LEFT_PTR);
1671 const static struct wl_input_device_interface input_device_interface = {
1672 input_device_attach,
1675 static void unbind_input_device(struct wl_resource *resource)
1677 wl_list_remove(&resource->link);
1682 bind_input_device(struct wl_client *client,
1683 void *data, uint32_t version, uint32_t id)
1685 struct wl_input_device *device = data;
1686 struct wl_resource *resource;
1688 resource = wl_client_add_object(client, &wl_input_device_interface,
1689 &input_device_interface, id, data);
1690 wl_list_insert(&device->resource_list, &resource->link);
1691 resource->destroy = unbind_input_device;
1695 wlsc_input_device_init(struct wlsc_input_device *device,
1696 struct wlsc_compositor *ec)
1698 wl_input_device_init(&device->input_device, &ec->compositor);
1700 wl_display_add_global(ec->wl_display, &wl_input_device_interface,
1701 device, bind_input_device);
1703 device->sprite = wlsc_surface_create(ec,
1704 device->input_device.x,
1705 device->input_device.y, 32, 32);
1706 wl_list_insert(&ec->surface_list, &device->sprite->link);
1708 device->hotspot_x = 16;
1709 device->hotspot_y = 16;
1710 device->modifier_state = 0;
1712 device->input_device.implicit_grab.interface = &implicit_grab_interface;
1714 wl_list_insert(ec->input_device_list.prev, &device->link);
1716 wlsc_input_device_set_pointer_image(device, WLSC_POINTER_LEFT_PTR);
1720 bind_output(struct wl_client *client,
1721 void *data, uint32_t version, uint32_t id)
1723 struct wlsc_output *output = data;
1724 struct wlsc_mode *mode;
1725 struct wl_resource *resource;
1727 resource = wl_client_add_object(client,
1728 &wl_output_interface, NULL, id, data);
1730 wl_resource_post_event(resource,
1737 output->make, output->model);
1739 wl_list_for_each (mode, &output->mode_list, link) {
1740 wl_resource_post_event(resource,
1749 static const char vertex_shader[] =
1750 "uniform mat4 proj;\n"
1751 "attribute vec2 position;\n"
1752 "attribute vec2 texcoord;\n"
1753 "varying vec2 v_texcoord;\n"
1756 " gl_Position = proj * vec4(position, 0.0, 1.0);\n"
1757 " v_texcoord = texcoord;\n"
1760 static const char texture_fragment_shader[] =
1761 "precision mediump float;\n"
1762 "varying vec2 v_texcoord;\n"
1763 "uniform sampler2D tex;\n"
1766 " gl_FragColor = texture2D(tex, v_texcoord)\n;"
1769 static const char solid_fragment_shader[] =
1770 "precision mediump float;\n"
1771 "uniform vec4 color;\n"
1774 " gl_FragColor = color\n;"
1778 compile_shader(GLenum type, const char *source)
1784 s = glCreateShader(type);
1785 glShaderSource(s, 1, &source, NULL);
1787 glGetShaderiv(s, GL_COMPILE_STATUS, &status);
1789 glGetShaderInfoLog(s, sizeof msg, NULL, msg);
1790 fprintf(stderr, "shader info: %s\n", msg);
1798 wlsc_shader_init(struct wlsc_shader *shader,
1799 const char *vertex_source, const char *fragment_source)
1804 shader->vertex_shader =
1805 compile_shader(GL_VERTEX_SHADER, vertex_source);
1806 shader->fragment_shader =
1807 compile_shader(GL_FRAGMENT_SHADER, fragment_source);
1809 shader->program = glCreateProgram();
1810 glAttachShader(shader->program, shader->vertex_shader);
1811 glAttachShader(shader->program, shader->fragment_shader);
1812 glBindAttribLocation(shader->program, 0, "position");
1813 glBindAttribLocation(shader->program, 1, "texcoord");
1815 glLinkProgram(shader->program);
1816 glGetProgramiv(shader->program, GL_LINK_STATUS, &status);
1818 glGetProgramInfoLog(shader->program, sizeof msg, NULL, msg);
1819 fprintf(stderr, "link info: %s\n", msg);
1823 shader->proj_uniform = glGetUniformLocation(shader->program, "proj");
1824 shader->tex_uniform = glGetUniformLocation(shader->program, "tex");
1830 init_solid_shader(struct wlsc_shader *shader,
1831 GLuint vertex_shader, const char *fragment_source)
1836 shader->vertex_shader = vertex_shader;
1837 shader->fragment_shader =
1838 compile_shader(GL_FRAGMENT_SHADER, fragment_source);
1840 shader->program = glCreateProgram();
1841 glAttachShader(shader->program, shader->vertex_shader);
1842 glAttachShader(shader->program, shader->fragment_shader);
1843 glBindAttribLocation(shader->program, 0, "position");
1844 glBindAttribLocation(shader->program, 1, "texcoord");
1846 glLinkProgram(shader->program);
1847 glGetProgramiv(shader->program, GL_LINK_STATUS, &status);
1849 glGetProgramInfoLog(shader->program, sizeof msg, NULL, msg);
1850 fprintf(stderr, "link info: %s\n", msg);
1854 shader->proj_uniform = glGetUniformLocation(shader->program, "proj");
1855 shader->color_uniform = glGetUniformLocation(shader->program, "color");
1861 wlsc_output_destroy(struct wlsc_output *output)
1863 pixman_region32_fini(&output->region);
1864 pixman_region32_fini(&output->previous_damage);
1868 wlsc_output_move(struct wlsc_output *output, int x, int y)
1870 struct wlsc_compositor *c = output->compositor;
1876 pixman_region32_init(&output->previous_damage);
1877 pixman_region32_init_rect(&output->region, x, y,
1878 output->current->width,
1879 output->current->height);
1881 wlsc_matrix_init(&output->matrix);
1882 wlsc_matrix_translate(&output->matrix,
1883 -output->x - output->current->width / 2.0,
1884 -output->y - output->current->height / 2.0, 0);
1886 flip = (output->flags & WL_OUTPUT_FLIPPED) ? -1 : 1;
1887 wlsc_matrix_scale(&output->matrix,
1888 2.0 / output->current->width,
1889 flip * 2.0 / output->current->height, 1);
1891 pixman_region32_union(&c->damage, &c->damage, &output->region);
1895 wlsc_output_init(struct wlsc_output *output, struct wlsc_compositor *c,
1896 int x, int y, int width, int height, uint32_t flags)
1898 output->compositor = c;
1901 output->mm_width = width;
1902 output->mm_height = height;
1904 output->flags = flags;
1905 wlsc_output_move(output, x, y);
1907 output->scanout_buffer_destroy_listener.func =
1908 output_handle_scanout_buffer_destroy;
1909 wl_list_init(&output->scanout_buffer_destroy_listener.link);
1910 wl_list_init(&output->frame_callback_list);
1912 output->resource.object.interface = &wl_output_interface;
1913 wl_display_add_global(c->wl_display,
1914 &wl_output_interface, output, bind_output);
1918 shm_buffer_created(struct wl_buffer *buffer)
1920 struct wl_list *surfaces_attached_to;
1922 surfaces_attached_to = malloc(sizeof *surfaces_attached_to);
1923 if (!surfaces_attached_to) {
1924 buffer->user_data = NULL;
1928 wl_list_init(surfaces_attached_to);
1930 buffer->user_data = surfaces_attached_to;
1934 shm_buffer_damaged(struct wl_buffer *buffer,
1935 int32_t x, int32_t y, int32_t width, int32_t height)
1937 struct wl_list *surfaces_attached_to = buffer->user_data;
1938 struct wlsc_surface *es;
1939 GLsizei tex_width = wl_shm_buffer_get_stride(buffer) / 4;
1941 wl_list_for_each(es, surfaces_attached_to, buffer_link) {
1942 glBindTexture(GL_TEXTURE_2D, es->texture);
1943 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
1944 tex_width, buffer->height, 0,
1945 GL_BGRA_EXT, GL_UNSIGNED_BYTE,
1946 wl_shm_buffer_get_data(buffer));
1947 /* Hmm, should use glTexSubImage2D() here but GLES2 doesn't
1948 * support any unpack attributes except GL_UNPACK_ALIGNMENT. */
1953 shm_buffer_destroyed(struct wl_buffer *buffer)
1955 struct wl_list *surfaces_attached_to = buffer->user_data;
1956 struct wlsc_surface *es, *next;
1958 wl_list_for_each_safe(es, next, surfaces_attached_to, buffer_link) {
1959 wl_list_remove(&es->buffer_link);
1960 wl_list_init(&es->buffer_link);
1963 free(surfaces_attached_to);
1966 const static struct wl_shm_callbacks shm_callbacks = {
1969 shm_buffer_destroyed
1973 wlsc_compositor_init(struct wlsc_compositor *ec, struct wl_display *display)
1975 struct wl_event_loop *loop;
1976 const char *extensions;
1978 ec->wl_display = display;
1980 wl_compositor_init(&ec->compositor, &compositor_interface, display);
1982 ec->shm = wl_shm_init(display, &shm_callbacks);
1984 ec->image_target_texture_2d =
1985 (void *) eglGetProcAddress("glEGLImageTargetTexture2DOES");
1986 ec->image_target_renderbuffer_storage = (void *)
1987 eglGetProcAddress("glEGLImageTargetRenderbufferStorageOES");
1988 ec->create_image = (void *) eglGetProcAddress("eglCreateImageKHR");
1989 ec->destroy_image = (void *) eglGetProcAddress("eglDestroyImageKHR");
1991 (void *) eglGetProcAddress("eglBindWaylandDisplayWL");
1992 ec->unbind_display =
1993 (void *) eglGetProcAddress("eglUnbindWaylandDisplayWL");
1995 extensions = (const char *) glGetString(GL_EXTENSIONS);
1996 if (!strstr(extensions, "GL_EXT_texture_format_BGRA8888")) {
1998 "GL_EXT_texture_format_BGRA8888 not available\n");
2003 (const char *) eglQueryString(ec->display, EGL_EXTENSIONS);
2004 if (strstr(extensions, "EGL_WL_bind_wayland_display"))
2005 ec->has_bind_display = 1;
2006 if (ec->has_bind_display)
2007 ec->bind_display(ec->display, ec->wl_display);
2009 wl_list_init(&ec->surface_list);
2010 wl_list_init(&ec->input_device_list);
2011 wl_list_init(&ec->output_list);
2012 wl_list_init(&ec->binding_list);
2013 wl_list_init(&ec->animation_list);
2014 wlsc_spring_init(&ec->fade.spring, 0.8, 0.0, 0.0);
2015 ec->fade.animation.frame = fade_frame;
2016 wl_list_init(&ec->fade.animation.link);
2018 wlsc_compositor_add_binding(ec, KEY_BACKSPACE, 0,
2019 MODIFIER_CTRL | MODIFIER_ALT,
2020 terminate_binding, ec);
2022 create_pointer_images(ec);
2024 screenshooter_create(ec);
2026 glActiveTexture(GL_TEXTURE0);
2028 if (wlsc_shader_init(&ec->texture_shader,
2029 vertex_shader, texture_fragment_shader) < 0)
2031 if (init_solid_shader(&ec->solid_shader,
2032 ec->texture_shader.vertex_shader,
2033 solid_fragment_shader) < 0)
2036 loop = wl_display_get_event_loop(ec->wl_display);
2037 ec->idle_source = wl_event_loop_add_timer(loop, idle_handler, ec);
2038 wl_event_source_timer_update(ec->idle_source, option_idle_time * 1000);
2040 pixman_region32_init(&ec->damage);
2041 wlsc_compositor_schedule_repaint(ec);
2047 wlsc_compositor_shutdown(struct wlsc_compositor *ec)
2049 struct wlsc_output *output;
2051 /* Destroy all outputs associated with this compositor */
2052 wl_list_for_each(output, &ec->output_list, link)
2053 output->destroy(output);
2056 static int on_term_signal(int signal_number, void *data)
2058 struct wl_display *display = data;
2060 fprintf(stderr, "caught signal %d\n", signal_number);
2061 wl_display_terminate(display);
2067 load_module(const char *name, const char *entrypoint, void **handle)
2069 char path[PATH_MAX];
2070 void *module, *init;
2073 snprintf(path, sizeof path, MODULEDIR "/%s", name);
2075 snprintf(path, sizeof path, "%s", name);
2077 module = dlopen(path, RTLD_LAZY);
2080 "failed to load module: %s\n", dlerror());
2084 init = dlsym(module, entrypoint);
2087 "failed to lookup init function: %s\n", dlerror());
2094 int main(int argc, char *argv[])
2096 struct wl_display *display;
2097 struct wlsc_compositor *ec;
2098 struct wl_event_loop *loop;
2100 void *shell_module, *backend_module;
2101 int (*shell_init)(struct wlsc_compositor *ec);
2102 struct wlsc_compositor
2103 *(*backend_init)(struct wl_display *display, char *options);
2104 char *backend = NULL;
2105 char *backend_options = "";
2109 static const char opts[] = "B:b:o:S:i:s:x";
2110 static const struct option longopts[ ] = {
2111 { "backend", 1, NULL, 'B' },
2112 { "backend-options", 1, NULL, 'o' },
2113 { "socket", 1, NULL, 'S' },
2114 { "idle-time", 1, NULL, 'i' },
2115 { "shell", 1, NULL, 's' },
2116 { "xserver", 0, NULL, 'x' },
2120 while (o = getopt_long(argc, argv, opts, longopts, &o), o > 0) {
2126 backend_options = optarg;
2129 option_socket_name = optarg;
2132 option_idle_time = strtol(optarg, &p, 0);
2135 "invalid idle time option: %s\n",
2149 display = wl_display_create();
2151 loop = wl_display_get_event_loop(display);
2152 wl_event_loop_add_signal(loop, SIGTERM, on_term_signal, display);
2153 wl_event_loop_add_signal(loop, SIGINT, on_term_signal, display);
2154 wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal, display);
2156 wl_list_init(&child_process_list);
2157 wl_event_loop_add_signal(loop, SIGCHLD, sigchld_handler, NULL);
2160 if (getenv("WAYLAND_DISPLAY"))
2161 backend = "wayland-backend.so";
2162 else if (getenv("DISPLAY"))
2163 backend = "x11-backend.so";
2164 else if (getenv("OPENWFD"))
2165 backend = "openwfd-backend.so";
2167 backend = "drm-backend.so";
2171 shell = "desktop-shell.so";
2173 backend_init = load_module(backend, "backend_init", &backend_module);
2177 shell_init = load_module(shell, "shell_init", &shell_module);
2181 ec = backend_init(display, backend_options);
2183 fprintf(stderr, "failed to create compositor\n");
2187 if (shell_init(ec) < 0)
2191 wlsc_xserver_init(ec);
2193 if (wl_display_add_socket(display, option_socket_name)) {
2194 fprintf(stderr, "failed to add socket: %m\n");
2198 wl_display_run(display);
2201 wlsc_xserver_destroy(ec);
2203 if (ec->has_bind_display)
2204 ec->unbind_display(ec->display, display);
2205 wl_display_destroy(display);