2 * Copyright © 2008 Kristian Høgsberg
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software Foundation,
16 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
30 #include <sys/ioctl.h>
35 #include <linux/input.h>
40 #include "wayland-server.h"
41 #include "compositor.h"
43 /* The plan here is to generate a random anonymous socket name and
44 * advertise that through a service on the session dbus.
46 static const char *option_socket_name = NULL;
47 static const char *option_background = "background.png";
48 static int option_idle_time = 300;
50 static struct wl_list child_process_list;
53 sigchld_handler(int signal_number, void *data)
55 struct wlsc_process *p;
60 wl_list_for_each(p, &child_process_list, link) {
65 if (&p->link == &child_process_list) {
66 fprintf(stderr, "unknown child process exited\n");
70 wl_list_remove(&p->link);
71 p->cleanup(p, status);
77 wlsc_watch_process(struct wlsc_process *process)
79 wl_list_insert(&child_process_list, &process->link);
83 wlsc_matrix_init(struct wlsc_matrix *matrix)
85 static const struct wlsc_matrix identity = {
86 { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 }
89 memcpy(matrix, &identity, sizeof identity);
93 wlsc_matrix_multiply(struct wlsc_matrix *m, const struct wlsc_matrix *n)
95 struct wlsc_matrix tmp;
96 const GLfloat *row, *column;
100 for (i = 0; i < 16; i++) {
103 row = m->d + d.quot * 4;
104 column = n->d + d.rem;
105 for (j = 0; j < 4; j++)
106 tmp.d[i] += row[j] * column[j * 4];
108 memcpy(m, &tmp, sizeof tmp);
112 wlsc_matrix_translate(struct wlsc_matrix *matrix, GLfloat x, GLfloat y, GLfloat z)
114 struct wlsc_matrix translate = {
115 { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, x, y, z, 1 }
118 wlsc_matrix_multiply(matrix, &translate);
122 wlsc_matrix_scale(struct wlsc_matrix *matrix, GLfloat x, GLfloat y, GLfloat z)
124 struct wlsc_matrix scale = {
125 { x, 0, 0, 0, 0, y, 0, 0, 0, 0, z, 0, 0, 0, 0, 1 }
128 wlsc_matrix_multiply(matrix, &scale);
132 wlsc_matrix_transform(struct wlsc_matrix *matrix, struct wlsc_vector *v)
135 struct wlsc_vector t;
137 for (i = 0; i < 4; i++) {
139 for (j = 0; j < 4; j++)
140 t.f[i] += v->f[j] * matrix->d[i + j * 4];
147 wlsc_spring_init(struct wlsc_spring *spring,
148 double k, double current, double target)
151 spring->friction = 100.0;
152 spring->current = current;
153 spring->previous = current;
154 spring->target = target;
158 wlsc_spring_update(struct wlsc_spring *spring, uint32_t msec)
160 double force, v, current, step;
162 step = (msec - spring->timestamp) / 300.0;
163 spring->timestamp = msec;
165 current = spring->current;
166 v = current - spring->previous;
167 force = spring->k * (spring->target - current) / 10.0 +
168 (spring->previous - current) - v * spring->friction;
171 current + (current - spring->previous) + force * step * step;
172 spring->previous = current;
175 if (spring->current >= 1.0) {
176 #ifdef TWEENER_BOUNCE
177 spring->current = 2.0 - spring->current;
178 spring->previous = 2.0 - spring->previous;
180 spring->current = 1.0;
181 spring->previous = 1.0;
185 if (spring->current <= 0.0) {
186 spring->current = 0.0;
187 spring->previous = 0.0;
193 wlsc_spring_done(struct wlsc_spring *spring)
195 return fabs(spring->previous - spring->target) < 0.0002 &&
196 fabs(spring->current - spring->target) < 0.0002;
200 surface_handle_buffer_destroy(struct wl_listener *listener,
201 struct wl_resource *resource, uint32_t time)
203 struct wlsc_surface *es = container_of(listener, struct wlsc_surface,
204 buffer_destroy_listener);
205 struct wl_buffer *buffer = (struct wl_buffer *) resource;
207 if (es->buffer == buffer)
212 output_handle_scanout_buffer_destroy(struct wl_listener *listener,
213 struct wl_resource *resource,
216 struct wlsc_output *output =
217 container_of(listener, struct wlsc_output,
218 scanout_buffer_destroy_listener);
219 struct wl_buffer *buffer = (struct wl_buffer *) resource;
221 if (output->scanout_buffer == buffer)
222 output->scanout_buffer = NULL;
225 WL_EXPORT struct wlsc_surface *
226 wlsc_surface_create(struct wlsc_compositor *compositor,
227 int32_t x, int32_t y, int32_t width, int32_t height)
229 struct wlsc_surface *surface;
231 surface = malloc(sizeof *surface);
235 wl_list_init(&surface->link);
236 wl_list_init(&surface->buffer_link);
237 surface->map_type = WLSC_SURFACE_MAP_UNMAPPED;
239 glGenTextures(1, &surface->texture);
240 glBindTexture(GL_TEXTURE_2D, surface->texture);
241 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
242 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
244 surface->surface.resource.client = NULL;
246 surface->compositor = compositor;
247 surface->visual = NULL;
248 surface->image = EGL_NO_IMAGE_KHR;
249 surface->saved_texture = 0;
252 surface->width = width;
253 surface->height = height;
255 surface->buffer = NULL;
256 surface->output = NULL;
258 pixman_region32_init(&surface->damage);
259 pixman_region32_init(&surface->opaque);
261 surface->buffer_destroy_listener.func = surface_handle_buffer_destroy;
262 wl_list_init(&surface->buffer_destroy_listener.link);
264 surface->transform = NULL;
270 wlsc_surface_damage_rectangle(struct wlsc_surface *surface,
271 int32_t x, int32_t y,
272 int32_t width, int32_t height)
274 struct wlsc_compositor *compositor = surface->compositor;
276 pixman_region32_union_rect(&surface->damage,
278 surface->x + x, surface->y + y,
280 wlsc_compositor_schedule_repaint(compositor);
284 wlsc_surface_damage(struct wlsc_surface *surface)
286 wlsc_surface_damage_rectangle(surface, 0, 0,
287 surface->width, surface->height);
291 wlsc_surface_damage_below(struct wlsc_surface *surface)
293 struct wlsc_surface *below;
295 if (surface->link.next == &surface->compositor->surface_list)
298 below = container_of(surface->link.next, struct wlsc_surface, link);
300 pixman_region32_union_rect(&below->damage,
302 surface->x, surface->y,
303 surface->width, surface->height);
304 wlsc_compositor_schedule_repaint(surface->compositor);
308 wlsc_surface_configure(struct wlsc_surface *surface,
309 int x, int y, int width, int height)
311 struct wlsc_compositor *compositor = surface->compositor;
313 wlsc_surface_damage_below(surface);
317 surface->width = width;
318 surface->height = height;
320 wlsc_surface_assign_output(surface);
321 wlsc_surface_damage(surface);
323 pixman_region32_fini(&surface->opaque);
324 if (surface->visual == &compositor->compositor.rgb_visual)
325 pixman_region32_init_rect(&surface->opaque,
326 surface->x, surface->y,
327 surface->width, surface->height);
329 pixman_region32_init(&surface->opaque);
333 wlsc_compositor_get_time(void)
337 gettimeofday(&tv, NULL);
339 return tv.tv_sec * 1000 + tv.tv_usec / 1000;
343 destroy_surface(struct wl_resource *resource)
345 struct wlsc_surface *surface =
346 container_of(resource, struct wlsc_surface, surface.resource);
347 struct wlsc_compositor *compositor = surface->compositor;
349 wlsc_surface_damage_below(surface);
351 wl_list_remove(&surface->link);
352 if (surface->saved_texture == 0)
353 glDeleteTextures(1, &surface->texture);
355 glDeleteTextures(1, &surface->saved_texture);
358 wl_list_remove(&surface->buffer_destroy_listener.link);
360 if (surface->image != EGL_NO_IMAGE_KHR)
361 compositor->destroy_image(compositor->display,
364 wl_list_remove(&surface->buffer_link);
370 wlsc_buffer_attach(struct wl_buffer *buffer, struct wl_surface *surface)
372 struct wlsc_surface *es = (struct wlsc_surface *) surface;
373 struct wlsc_compositor *ec = es->compositor;
374 struct wl_list *surfaces_attached_to;
376 if (es->saved_texture != 0)
377 es->texture = es->saved_texture;
379 glBindTexture(GL_TEXTURE_2D, es->texture);
381 if (wl_buffer_is_shm(buffer)) {
382 /* Unbind any EGLImage texture that may be bound, so we don't
384 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
385 0, 0, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, NULL);
386 es->pitch = wl_shm_buffer_get_stride(buffer) / 4;
387 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
388 es->pitch, buffer->height, 0,
389 GL_BGRA_EXT, GL_UNSIGNED_BYTE,
390 wl_shm_buffer_get_data(buffer));
391 es->visual = buffer->visual;
393 surfaces_attached_to = buffer->user_data;
395 wl_list_remove(&es->buffer_link);
396 wl_list_insert(surfaces_attached_to, &es->buffer_link);
398 if (es->image != EGL_NO_IMAGE_KHR)
399 ec->destroy_image(ec->display, es->image);
400 es->image = ec->create_image(ec->display, NULL,
401 EGL_WAYLAND_BUFFER_WL,
404 ec->image_target_texture_2d(GL_TEXTURE_2D, es->image);
405 es->visual = buffer->visual;
406 es->pitch = es->width;
411 wlsc_sprite_attach(struct wlsc_sprite *sprite, struct wl_surface *surface)
413 struct wlsc_surface *es = (struct wlsc_surface *) surface;
414 struct wlsc_compositor *ec = es->compositor;
416 es->pitch = es->width;
417 es->image = sprite->image;
418 if (sprite->image != EGL_NO_IMAGE_KHR) {
419 glBindTexture(GL_TEXTURE_2D, es->texture);
420 ec->image_target_texture_2d(GL_TEXTURE_2D, es->image);
422 if (es->saved_texture == 0)
423 es->saved_texture = es->texture;
424 es->texture = sprite->texture;
427 es->visual = sprite->visual;
434 SPRITE_USE_CURSOR = (1 << 0),
437 static struct wlsc_sprite *
438 create_sprite_from_png(struct wlsc_compositor *ec,
439 const char *filename, uint32_t usage)
442 struct wlsc_sprite *sprite;
443 int32_t width, height;
446 pixels = wlsc_load_image(filename, &width, &height, &stride);
450 sprite = malloc(sizeof *sprite);
451 if (sprite == NULL) {
456 sprite->visual = &ec->compositor.premultiplied_argb_visual;
457 sprite->width = width;
458 sprite->height = height;
459 sprite->image = EGL_NO_IMAGE_KHR;
461 if (usage & SPRITE_USE_CURSOR && ec->create_cursor_image != NULL)
462 sprite->image = ec->create_cursor_image(ec, width, height);
464 glGenTextures(1, &sprite->texture);
465 glBindTexture(GL_TEXTURE_2D, sprite->texture);
466 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
467 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
468 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
469 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
471 if (sprite->image != EGL_NO_IMAGE_KHR) {
472 ec->image_target_texture_2d(GL_TEXTURE_2D, sprite->image);
473 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height,
474 GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
476 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, width, height, 0,
477 GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
485 static const struct {
486 const char *filename;
487 int hotspot_x, hotspot_y;
488 } pointer_images[] = {
489 { DATADIR "/wayland/bottom_left_corner.png", 6, 30 },
490 { DATADIR "/wayland/bottom_right_corner.png", 28, 28 },
491 { DATADIR "/wayland/bottom_side.png", 16, 20 },
492 { DATADIR "/wayland/grabbing.png", 20, 17 },
493 { DATADIR "/wayland/left_ptr.png", 10, 5 },
494 { DATADIR "/wayland/left_side.png", 10, 20 },
495 { DATADIR "/wayland/right_side.png", 30, 19 },
496 { DATADIR "/wayland/top_left_corner.png", 8, 8 },
497 { DATADIR "/wayland/top_right_corner.png", 26, 8 },
498 { DATADIR "/wayland/top_side.png", 18, 8 },
499 { DATADIR "/wayland/xterm.png", 15, 15 }
503 create_pointer_images(struct wlsc_compositor *ec)
507 count = ARRAY_LENGTH(pointer_images);
508 ec->pointer_sprites = malloc(count * sizeof *ec->pointer_sprites);
509 for (i = 0; i < count; i++) {
510 ec->pointer_sprites[i] =
511 create_sprite_from_png(ec,
512 pointer_images[i].filename,
517 static struct wlsc_surface *
518 background_create(struct wlsc_output *output, const char *filename)
520 struct wlsc_surface *background;
521 struct wlsc_sprite *sprite;
523 background = wlsc_surface_create(output->compositor,
524 output->x, output->y,
525 output->current->width,
526 output->current->height);
527 if (background == NULL)
530 sprite = create_sprite_from_png(output->compositor, filename, 0);
531 if (sprite == NULL) {
536 wlsc_sprite_attach(sprite, &background->surface);
542 texture_region(struct wlsc_surface *es, pixman_region32_t *region)
544 struct wlsc_compositor *ec = es->compositor;
545 GLfloat *v, inv_width, inv_height;
546 pixman_box32_t *rectangles;
550 rectangles = pixman_region32_rectangles(region, &n);
551 v = wl_array_add(&ec->vertices, n * 16 * sizeof *v);
552 p = wl_array_add(&ec->indices, n * 6 * sizeof *p);
553 inv_width = 1.0 / es->pitch;
554 inv_height = 1.0 / es->height;
556 for (i = 0; i < n; i++, v += 16, p += 6) {
557 v[ 0] = rectangles[i].x1;
558 v[ 1] = rectangles[i].y1;
559 v[ 2] = (GLfloat) (rectangles[i].x1 - es->x) * inv_width;
560 v[ 3] = (GLfloat) (rectangles[i].y1 - es->y) * inv_height;
562 v[ 4] = rectangles[i].x1;
563 v[ 5] = rectangles[i].y2;
565 v[ 7] = (GLfloat) (rectangles[i].y2 - es->y) * inv_height;
567 v[ 8] = rectangles[i].x2;
568 v[ 9] = rectangles[i].y1;
569 v[10] = (GLfloat) (rectangles[i].x2 - es->x) * inv_width;
572 v[12] = rectangles[i].x2;
573 v[13] = rectangles[i].y2;
589 transform_vertex(struct wlsc_surface *surface,
590 GLfloat x, GLfloat y, GLfloat u, GLfloat v, GLfloat *r)
592 struct wlsc_vector t;
599 wlsc_matrix_transform(&surface->transform->matrix, &t);
608 texture_transformed_surface(struct wlsc_surface *es)
610 struct wlsc_compositor *ec = es->compositor;
614 v = wl_array_add(&ec->vertices, 16 * sizeof *v);
615 p = wl_array_add(&ec->indices, 6 * sizeof *p);
617 transform_vertex(es, es->x, es->y, 0.0, 0.0, &v[0]);
618 transform_vertex(es, es->x, es->y + es->height, 0.0, 1.0, &v[4]);
619 transform_vertex(es, es->x + es->width, es->y, 1.0, 0.0, &v[8]);
620 transform_vertex(es, es->x + es->width, es->y + es->height,
634 wlsc_surface_draw(struct wlsc_surface *es,
635 struct wlsc_output *output, pixman_region32_t *clip)
637 struct wlsc_compositor *ec = es->compositor;
639 pixman_region32_t repaint;
643 pixman_region32_init_rect(&repaint,
644 es->x, es->y, es->width, es->height);
645 pixman_region32_intersect(&repaint, &repaint, clip);
646 if (!pixman_region32_not_empty(&repaint))
649 if (es->visual == &ec->compositor.argb_visual) {
650 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
652 } else if (es->visual == &ec->compositor.premultiplied_argb_visual) {
653 glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
659 if (es->transform == NULL) {
661 n = texture_region(es, &repaint);
664 n = texture_transformed_surface(es);
667 glBindTexture(GL_TEXTURE_2D, es->texture);
668 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
669 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
671 v = ec->vertices.data;
672 glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[0]);
673 glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[2]);
674 glEnableVertexAttribArray(0);
675 glEnableVertexAttribArray(1);
676 glDrawElements(GL_TRIANGLES, n * 6, GL_UNSIGNED_INT, ec->indices.data);
678 ec->vertices.size = 0;
679 ec->indices.size = 0;
680 pixman_region32_fini(&repaint);
684 wlsc_surface_raise(struct wlsc_surface *surface)
686 struct wlsc_compositor *compositor = surface->compositor;
688 wl_list_remove(&surface->link);
689 wl_list_insert(&compositor->surface_list, &surface->link);
690 wlsc_surface_damage(surface);
694 wlsc_compositor_damage_all(struct wlsc_compositor *compositor)
696 struct wlsc_output *output;
698 wl_list_for_each(output, &compositor->output_list, link)
699 wlsc_output_damage(output);
703 wlsc_buffer_post_release(struct wl_buffer *buffer)
705 if (buffer == NULL || --buffer->busy_count > 0)
708 assert(buffer->resource.client != NULL);
709 wl_resource_post_event(&buffer->resource, WL_BUFFER_RELEASE);
713 wlsc_output_damage(struct wlsc_output *output)
715 struct wlsc_compositor *compositor = output->compositor;
717 pixman_region32_union(&compositor->damage,
718 &compositor->damage, &output->region);
719 wlsc_compositor_schedule_repaint(compositor);
723 fade_frame(struct wlsc_animation *animation,
724 struct wlsc_output *output, uint32_t msecs)
726 struct wlsc_compositor *compositor =
727 container_of(animation,
728 struct wlsc_compositor, fade.animation);
730 wlsc_spring_update(&compositor->fade.spring, msecs);
731 if (wlsc_spring_done(&compositor->fade.spring)) {
732 if (compositor->fade.spring.current > 0.999) {
733 compositor->state = WLSC_COMPOSITOR_SLEEPING;
734 compositor->shell->lock(compositor->shell);
736 compositor->fade.spring.current =
737 compositor->fade.spring.target;
738 wl_list_remove(&animation->link);
739 wl_list_init(&animation->link);
742 wlsc_output_damage(output);
746 fade_output(struct wlsc_output *output,
747 GLfloat tint, pixman_region32_t *region)
749 struct wlsc_compositor *compositor = output->compositor;
750 struct wlsc_surface surface;
751 GLfloat color[4] = { 0.0, 0.0, 0.0, tint };
753 surface.compositor = compositor;
754 surface.x = output->x;
755 surface.y = output->y;
756 surface.pitch = output->current->width;
757 surface.width = output->current->width;
758 surface.height = output->current->height;
759 surface.texture = GL_NONE;
760 surface.transform = NULL;
764 &compositor->compositor.premultiplied_argb_visual;
766 surface.visual = &compositor->compositor.rgb_visual;
768 glUseProgram(compositor->solid_shader.program);
769 glUniformMatrix4fv(compositor->solid_shader.proj_uniform,
770 1, GL_FALSE, output->matrix.d);
771 glUniform4fv(compositor->solid_shader.color_uniform, 1, color);
772 wlsc_surface_draw(&surface, output, region);
776 wlsc_output_set_cursor(struct wlsc_output *output,
777 struct wl_input_device *dev, int force_sw)
779 struct wlsc_compositor *ec = output->compositor;
780 struct wlsc_input_device *device = (struct wlsc_input_device *) dev;
781 pixman_region32_t cursor_region;
782 int use_hardware_cursor = 1, prior_was_hardware;
784 pixman_region32_init_rect(&cursor_region,
785 device->sprite->x, device->sprite->y,
786 device->sprite->width,
787 device->sprite->height);
789 pixman_region32_intersect(&cursor_region, &cursor_region, &output->region);
791 if (!pixman_region32_not_empty(&cursor_region)) {
792 output->set_hardware_cursor(output, NULL);
796 prior_was_hardware = wl_list_empty(&device->sprite->link);
797 if (force_sw || output->set_hardware_cursor(output, device) < 0) {
798 if (prior_was_hardware)
799 wlsc_surface_damage(device->sprite);
800 use_hardware_cursor = 0;
801 } else if (!prior_was_hardware) {
802 wlsc_surface_damage_below(device->sprite);
805 /* Remove always to be on top. */
806 wl_list_remove(&device->sprite->link);
807 if (!use_hardware_cursor && ec->focus)
808 wl_list_insert(&ec->surface_list, &device->sprite->link);
810 wl_list_init(&device->sprite->link);
813 pixman_region32_fini(&cursor_region);
817 wlsc_output_repaint(struct wlsc_output *output)
819 struct wlsc_compositor *ec = output->compositor;
820 struct wlsc_surface *es;
821 pixman_region32_t opaque, new_damage, total_damage, repaint;
823 output->prepare_render(output);
825 glViewport(0, 0, output->current->width, output->current->height);
827 glUseProgram(ec->texture_shader.program);
828 glUniformMatrix4fv(ec->texture_shader.proj_uniform,
829 1, GL_FALSE, output->matrix.d);
830 glUniform1i(ec->texture_shader.tex_uniform, 0);
832 wlsc_output_set_cursor(output, ec->input_device,
833 ec->fade.spring.current >= 0.001);
835 pixman_region32_init(&new_damage);
836 pixman_region32_copy(&new_damage, &ec->damage);
837 pixman_region32_init(&opaque);
839 wl_list_for_each(es, &ec->surface_list, link) {
840 pixman_region32_subtract(&es->damage, &es->damage, &opaque);
841 pixman_region32_union(&new_damage, &new_damage, &es->damage);
842 pixman_region32_union(&opaque, &opaque, &es->opaque);
845 pixman_region32_subtract(&ec->damage, &ec->damage, &output->region);
847 pixman_region32_init(&total_damage);
848 pixman_region32_union(&total_damage, &new_damage,
849 &output->previous_damage);
850 pixman_region32_intersect(&output->previous_damage,
851 &new_damage, &output->region);
853 pixman_region32_fini(&opaque);
854 pixman_region32_fini(&new_damage);
856 es = container_of(ec->surface_list.next, struct wlsc_surface, link);
858 if (es->visual == &ec->compositor.rgb_visual &&
859 output->prepare_scanout_surface(output, es) == 0) {
860 /* We're drawing nothing now,
861 * draw the damaged regions later. */
862 pixman_region32_union(&ec->damage, &ec->damage, &total_damage);
864 output->scanout_buffer = es->buffer;
865 output->scanout_buffer->busy_count++;
867 wl_list_remove(&output->scanout_buffer_destroy_listener.link);
868 wl_list_insert(output->scanout_buffer->resource.destroy_listener_list.prev,
869 &output->scanout_buffer_destroy_listener.link);
874 if (es->fullscreen_output == output) {
875 if (es->width < output->current->width ||
876 es->height < output->current->height)
877 glClear(GL_COLOR_BUFFER_BIT);
878 wlsc_surface_draw(es, output, &total_damage);
880 wl_list_for_each(es, &ec->surface_list, link) {
881 pixman_region32_copy(&es->damage, &total_damage);
882 pixman_region32_subtract(&total_damage, &total_damage, &es->opaque);
885 wl_list_for_each_reverse(es, &ec->surface_list, link) {
886 pixman_region32_init(&repaint);
887 pixman_region32_intersect(&repaint, &output->region,
889 wlsc_surface_draw(es, output, &repaint);
890 pixman_region32_subtract(&es->damage,
891 &es->damage, &output->region);
895 if (ec->fade.spring.current > 0.001)
896 fade_output(output, ec->fade.spring.current, &total_damage);
899 struct wlsc_frame_callback {
900 struct wl_resource resource;
905 repaint(void *data, int msecs)
907 struct wlsc_output *output = data;
908 struct wlsc_compositor *compositor = output->compositor;
909 struct wlsc_animation *animation, *next;
910 struct wlsc_frame_callback *cb, *cnext;
912 wlsc_output_repaint(output);
913 output->repaint_needed = 0;
914 output->repaint_scheduled = 1;
915 output->present(output);
917 wl_list_for_each_safe(cb, cnext, &output->frame_callback_list, link) {
918 wl_resource_post_event(&cb->resource, WL_CALLBACK_DONE, msecs);
919 wl_resource_destroy(&cb->resource, 0);
922 wl_list_for_each_safe(animation, next,
923 &compositor->animation_list, link)
924 animation->frame(animation, output, msecs);
928 idle_repaint(void *data)
930 repaint(data, wlsc_compositor_get_time());
934 wlsc_output_finish_frame(struct wlsc_output *output, int msecs)
936 wlsc_buffer_post_release(output->scanout_buffer);
937 output->scanout_buffer = NULL;
938 output->repaint_scheduled = 0;
940 if (output->repaint_needed)
941 repaint(output, msecs);
945 wlsc_compositor_schedule_repaint(struct wlsc_compositor *compositor)
947 struct wlsc_output *output;
948 struct wl_event_loop *loop;
950 if (compositor->state == WLSC_COMPOSITOR_SLEEPING)
953 loop = wl_display_get_event_loop(compositor->wl_display);
954 wl_list_for_each(output, &compositor->output_list, link) {
955 output->repaint_needed = 1;
956 if (output->repaint_scheduled)
959 wl_event_loop_add_idle(loop, idle_repaint, output);
960 output->repaint_scheduled = 1;
965 wlsc_compositor_fade(struct wlsc_compositor *compositor, float tint)
969 done = wlsc_spring_done(&compositor->fade.spring);
970 compositor->fade.spring.target = tint;
971 if (wlsc_spring_done(&compositor->fade.spring))
975 compositor->fade.spring.timestamp =
976 wlsc_compositor_get_time();
978 wlsc_compositor_damage_all(compositor);
979 if (wl_list_empty(&compositor->fade.animation.link))
980 wl_list_insert(compositor->animation_list.prev,
981 &compositor->fade.animation.link);
985 surface_destroy(struct wl_client *client, struct wl_resource *resource)
987 wl_resource_destroy(resource, wlsc_compositor_get_time());
991 wlsc_surface_assign_output(struct wlsc_surface *es)
993 struct wlsc_compositor *ec = es->compositor;
994 struct wlsc_output *output;
995 pixman_region32_t region;
1000 wl_list_for_each(output, &ec->output_list, link) {
1001 pixman_region32_init_rect(®ion,
1002 es->x, es->y, es->width, es->height);
1003 pixman_region32_intersect(®ion, ®ion, &output->region);
1005 e = pixman_region32_extents(®ion);
1006 area = (e->x2 - e->x1) * (e->y2 - e->y1);
1009 es->output = output;
1016 surface_attach(struct wl_client *client,
1017 struct wl_resource *resource,
1018 struct wl_resource *buffer_resource, int32_t x, int32_t y)
1020 struct wlsc_surface *es = resource->data;
1021 struct wl_buffer *buffer = buffer_resource->data;
1023 buffer->busy_count++;
1024 wlsc_buffer_post_release(es->buffer);
1026 es->buffer = buffer;
1027 wl_list_remove(&es->buffer_destroy_listener.link);
1028 wl_list_insert(es->buffer->resource.destroy_listener_list.prev,
1029 &es->buffer_destroy_listener.link);
1031 if (es->visual == NULL)
1032 wl_list_insert(&es->compositor->surface_list, &es->link);
1034 es->visual = buffer->visual;
1035 if (x != 0 || y != 0 ||
1036 es->width != buffer->width || es->height != buffer->height)
1037 wlsc_surface_configure(es, es->x + x, es->y + y,
1038 buffer->width, buffer->height);
1040 wlsc_buffer_attach(buffer, &es->surface);
1042 es->compositor->shell->attach(es->compositor->shell, es);
1046 surface_damage(struct wl_client *client,
1047 struct wl_resource *resource,
1048 int32_t x, int32_t y, int32_t width, int32_t height)
1050 struct wlsc_surface *es = resource->data;
1052 wlsc_surface_damage_rectangle(es, x, y, width, height);
1056 destroy_frame_callback(struct wl_resource *resource)
1058 struct wlsc_frame_callback *cb = resource->data;
1060 wl_list_remove(&cb->link);
1065 surface_frame(struct wl_client *client,
1066 struct wl_resource *resource, uint32_t callback)
1068 struct wlsc_frame_callback *cb;
1069 struct wlsc_surface *es = resource->data;
1071 cb = malloc(sizeof *cb);
1073 wl_client_post_no_memory(client);
1077 cb->resource.object.interface = &wl_callback_interface;
1078 cb->resource.object.id = callback;
1079 cb->resource.destroy = destroy_frame_callback;
1080 cb->resource.client = client;
1081 cb->resource.data = cb;
1083 wl_client_add_resource(client, &cb->resource);
1086 wl_list_insert(es->output->frame_callback_list.prev,
1089 wl_list_init(&cb->link);
1090 wl_resource_destroy(&cb->resource, 0);
1094 const static struct wl_surface_interface surface_interface = {
1102 wlsc_input_device_attach(struct wlsc_input_device *device,
1103 int x, int y, int width, int height)
1105 wlsc_surface_damage_below(device->sprite);
1107 device->hotspot_x = x;
1108 device->hotspot_y = y;
1110 device->sprite->x = device->input_device.x - device->hotspot_x;
1111 device->sprite->y = device->input_device.y - device->hotspot_y;
1112 device->sprite->width = width;
1113 device->sprite->height = height;
1115 wlsc_surface_damage(device->sprite);
1119 wlsc_input_device_attach_buffer(struct wlsc_input_device *device,
1120 struct wl_buffer *buffer, int x, int y)
1122 wlsc_buffer_attach(buffer, &device->sprite->surface);
1123 wlsc_input_device_attach(device, x, y, buffer->width, buffer->height);
1127 wlsc_input_device_attach_sprite(struct wlsc_input_device *device,
1128 struct wlsc_sprite *sprite, int x, int y)
1130 wlsc_sprite_attach(sprite, &device->sprite->surface);
1131 wlsc_input_device_attach(device, x, y, sprite->width, sprite->height);
1135 wlsc_input_device_set_pointer_image(struct wlsc_input_device *device,
1136 enum wlsc_pointer_type type)
1138 struct wlsc_compositor *compositor =
1139 (struct wlsc_compositor *) device->input_device.compositor;
1141 wlsc_input_device_attach_sprite(device,
1142 compositor->pointer_sprites[type],
1143 pointer_images[type].hotspot_x,
1144 pointer_images[type].hotspot_y);
1148 compositor_create_surface(struct wl_client *client,
1149 struct wl_resource *resource, uint32_t id)
1151 struct wlsc_compositor *ec = resource->data;
1152 struct wlsc_surface *surface;
1154 surface = wlsc_surface_create(ec, 0, 0, 0, 0);
1155 if (surface == NULL) {
1156 wl_client_post_no_memory(client);
1160 surface->surface.resource.destroy = destroy_surface;
1162 surface->surface.resource.object.id = id;
1163 surface->surface.resource.object.interface = &wl_surface_interface;
1164 surface->surface.resource.object.implementation =
1165 (void (**)(void)) &surface_interface;
1166 surface->surface.resource.data = surface;
1168 wl_client_add_resource(client, &surface->surface.resource);
1171 const static struct wl_compositor_interface compositor_interface = {
1172 compositor_create_surface,
1176 wlsc_surface_transform(struct wlsc_surface *surface,
1177 int32_t x, int32_t y, int32_t *sx, int32_t *sy)
1179 *sx = x - surface->x;
1180 *sy = y - surface->y;
1183 WL_EXPORT struct wlsc_surface *
1184 pick_surface(struct wl_input_device *device, int32_t *sx, int32_t *sy)
1186 struct wlsc_compositor *ec =
1187 (struct wlsc_compositor *) device->compositor;
1188 struct wlsc_surface *es;
1190 wl_list_for_each(es, &ec->surface_list, link) {
1191 if (es->surface.resource.client == NULL)
1193 wlsc_surface_transform(es, device->x, device->y, sx, sy);
1194 if (0 <= *sx && *sx < es->width &&
1195 0 <= *sy && *sy < es->height)
1204 motion_grab_motion(struct wl_grab *grab,
1205 uint32_t time, int32_t x, int32_t y)
1207 struct wlsc_input_device *device =
1208 (struct wlsc_input_device *) grab->input_device;
1209 struct wlsc_surface *es =
1210 (struct wlsc_surface *) device->input_device.pointer_focus;
1212 struct wl_resource *resource;
1214 resource = grab->input_device->pointer_focus_resource;
1216 wlsc_surface_transform(es, x, y, &sx, &sy);
1217 wl_resource_post_event(resource, WL_INPUT_DEVICE_MOTION,
1218 time, x, y, sx, sy);
1223 motion_grab_button(struct wl_grab *grab,
1224 uint32_t time, int32_t button, int32_t state)
1226 struct wl_resource *resource;
1228 resource = grab->input_device->pointer_focus_resource;
1230 wl_resource_post_event(resource, WL_INPUT_DEVICE_BUTTON,
1231 time, button, state);
1235 motion_grab_end(struct wl_grab *grab, uint32_t time)
1239 static const struct wl_grab_interface motion_grab_interface = {
1246 wlsc_compositor_wake(struct wlsc_compositor *compositor)
1248 if (compositor->idle_inhibit)
1251 wlsc_compositor_fade(compositor, 0.0);
1252 compositor->state = WLSC_COMPOSITOR_ACTIVE;
1254 wl_event_source_timer_update(compositor->idle_source,
1255 option_idle_time * 1000);
1259 wlsc_compositor_idle_inhibit(struct wlsc_compositor *compositor)
1261 wlsc_compositor_wake(compositor);
1262 compositor->idle_inhibit++;
1266 wlsc_compositor_idle_release(struct wlsc_compositor *compositor)
1268 compositor->idle_inhibit--;
1269 wlsc_compositor_wake(compositor);
1273 idle_handler(void *data)
1275 struct wlsc_compositor *compositor = data;
1277 if (compositor->idle_inhibit)
1280 wlsc_compositor_fade(compositor, 1.0);
1286 notify_motion(struct wl_input_device *device, uint32_t time, int x, int y)
1288 struct wlsc_surface *es;
1289 struct wlsc_compositor *ec =
1290 (struct wlsc_compositor *) device->compositor;
1291 struct wlsc_output *output;
1292 const struct wl_grab_interface *interface;
1293 struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
1295 int x_valid = 0, y_valid = 0;
1296 int min_x = INT_MAX, min_y = INT_MAX, max_x = INT_MIN, max_y = INT_MIN;
1298 wlsc_compositor_wake(ec);
1300 wl_list_for_each(output, &ec->output_list, link) {
1301 if (output->x <= x && x <= output->x + output->current->width)
1304 if (output->y <= y && y <= output->y + output->current->height)
1307 /* FIXME: calculate this only on output addition/deletion */
1308 if (output->x < min_x)
1310 if (output->y < min_y)
1313 if (output->x + output->current->width > max_x)
1314 max_x = output->x + output->current->width;
1315 if (output->y + output->current->height > max_y)
1316 max_y = output->y + output->current->height;
1322 else if (x >= max_x)
1328 else if (y >= max_y)
1336 interface = device->grab->interface;
1337 interface->motion(device->grab, time, x, y);
1339 es = pick_surface(device, &sx, &sy);
1340 wl_input_device_set_pointer_focus(device,
1342 time, x, y, sx, sy);
1343 if (device->pointer_focus_resource)
1344 wl_resource_post_event(device->pointer_focus_resource,
1345 WL_INPUT_DEVICE_MOTION,
1346 time, x, y, sx, sy);
1349 wlsc_surface_damage_below(wd->sprite);
1351 wd->sprite->x = device->x - wd->hotspot_x;
1352 wd->sprite->y = device->y - wd->hotspot_y;
1354 wlsc_surface_damage(wd->sprite);
1358 wlsc_surface_activate(struct wlsc_surface *surface,
1359 struct wlsc_input_device *device, uint32_t time)
1361 struct wlsc_shell *shell = surface->compositor->shell;
1363 wlsc_surface_raise(surface);
1364 if (device->selection)
1365 shell->set_selection_focus(shell,
1367 &surface->surface, time);
1369 wl_input_device_set_keyboard_focus(&device->input_device,
1374 struct wlsc_binding {
1378 wlsc_binding_handler_t handler;
1380 struct wl_list link;
1384 notify_button(struct wl_input_device *device,
1385 uint32_t time, int32_t button, int32_t state)
1387 struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
1388 struct wlsc_compositor *compositor =
1389 (struct wlsc_compositor *) device->compositor;
1390 struct wlsc_binding *b;
1391 struct wlsc_surface *surface =
1392 (struct wlsc_surface *) device->pointer_focus;
1395 wlsc_compositor_idle_inhibit(compositor);
1397 wlsc_compositor_idle_release(compositor);
1399 if (state && surface && device->grab == NULL) {
1400 wlsc_surface_activate(surface, wd, time);
1401 wl_input_device_start_grab(device,
1402 &device->motion_grab,
1406 wl_list_for_each(b, &compositor->binding_list, link) {
1407 if (b->button == button &&
1408 b->modifier == wd->modifier_state && state) {
1409 b->handler(&wd->input_device,
1410 time, 0, button, state, b->data);
1416 device->grab->interface->button(device->grab, time,
1419 if (!state && device->grab && device->grab_button == button)
1420 wl_input_device_end_grab(device, time);
1424 terminate_binding(struct wl_input_device *device, uint32_t time,
1425 uint32_t key, uint32_t button, uint32_t state, void *data)
1427 struct wlsc_compositor *compositor = data;
1430 wl_display_terminate(compositor->wl_display);
1433 WL_EXPORT struct wlsc_binding *
1434 wlsc_compositor_add_binding(struct wlsc_compositor *compositor,
1435 uint32_t key, uint32_t button, uint32_t modifier,
1436 wlsc_binding_handler_t handler, void *data)
1438 struct wlsc_binding *binding;
1440 binding = malloc(sizeof *binding);
1441 if (binding == NULL)
1445 binding->button = button;
1446 binding->modifier = modifier;
1447 binding->handler = handler;
1448 binding->data = data;
1449 wl_list_insert(compositor->binding_list.prev, &binding->link);
1455 wlsc_binding_destroy(struct wlsc_binding *binding)
1457 wl_list_remove(&binding->link);
1462 update_modifier_state(struct wlsc_input_device *device,
1463 uint32_t key, uint32_t state)
1470 modifier = MODIFIER_CTRL;
1475 modifier = MODIFIER_ALT;
1480 modifier = MODIFIER_SUPER;
1489 device->modifier_state |= modifier;
1491 device->modifier_state &= ~modifier;
1495 notify_key(struct wl_input_device *device,
1496 uint32_t time, uint32_t key, uint32_t state)
1498 struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
1499 struct wlsc_compositor *compositor =
1500 (struct wlsc_compositor *) device->compositor;
1502 struct wlsc_binding *b;
1505 wlsc_compositor_idle_inhibit(compositor);
1507 wlsc_compositor_idle_release(compositor);
1509 wl_list_for_each(b, &compositor->binding_list, link) {
1510 if (b->key == key &&
1511 b->modifier == wd->modifier_state) {
1512 b->handler(&wd->input_device,
1513 time, key, 0, state, b->data);
1518 update_modifier_state(wd, key, state);
1519 end = device->keys.data + device->keys.size;
1520 for (k = device->keys.data; k < end; k++) {
1524 device->keys.size = (void *) end - device->keys.data;
1526 k = wl_array_add(&device->keys, sizeof *k);
1530 if (device->keyboard_focus_resource)
1531 wl_resource_post_event(device->keyboard_focus_resource,
1532 WL_INPUT_DEVICE_KEY, time, key, state);
1536 notify_pointer_focus(struct wl_input_device *device,
1537 uint32_t time, struct wlsc_output *output,
1538 int32_t x, int32_t y)
1540 struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
1541 struct wlsc_compositor *compositor =
1542 (struct wlsc_compositor *) device->compositor;
1543 struct wlsc_surface *es;
1549 es = pick_surface(device, &sx, &sy);
1550 wl_input_device_set_pointer_focus(device,
1552 time, x, y, sx, sy);
1554 compositor->focus = 1;
1556 wd->sprite->x = device->x - wd->hotspot_x;
1557 wd->sprite->y = device->y - wd->hotspot_y;
1559 wl_input_device_set_pointer_focus(device, NULL,
1561 compositor->focus = 0;
1564 wlsc_surface_damage(wd->sprite);
1568 notify_keyboard_focus(struct wl_input_device *device,
1569 uint32_t time, struct wlsc_output *output,
1570 struct wl_array *keys)
1572 struct wlsc_input_device *wd =
1573 (struct wlsc_input_device *) device;
1574 struct wlsc_compositor *compositor =
1575 (struct wlsc_compositor *) device->compositor;
1576 struct wlsc_surface *es;
1579 if (!wl_list_empty(&compositor->surface_list))
1580 es = container_of(compositor->surface_list.next,
1581 struct wlsc_surface, link);
1586 wl_array_copy(&wd->input_device.keys, keys);
1587 wd->modifier_state = 0;
1588 end = device->keys.data + device->keys.size;
1589 for (k = device->keys.data; k < end; k++) {
1590 wlsc_compositor_idle_inhibit(compositor);
1591 update_modifier_state(wd, *k, 1);
1594 if (es->surface.resource.client)
1595 wl_input_device_set_keyboard_focus(&wd->input_device,
1596 &es->surface, time);
1598 end = device->keys.data + device->keys.size;
1599 for (k = device->keys.data; k < end; k++)
1600 wlsc_compositor_idle_release(compositor);
1602 wd->modifier_state = 0;
1603 wl_input_device_set_keyboard_focus(&wd->input_device,
1610 input_device_attach(struct wl_client *client,
1611 struct wl_resource *resource,
1613 struct wl_resource *buffer_resource, int32_t x, int32_t y)
1615 struct wlsc_input_device *device = resource->data;
1616 struct wl_buffer *buffer;
1618 if (time < device->input_device.pointer_focus_time)
1620 if (device->input_device.pointer_focus == NULL)
1622 if (device->input_device.pointer_focus->resource.client != client)
1625 if (buffer_resource) {
1626 buffer = buffer_resource->data;
1627 wlsc_input_device_attach_buffer(device, buffer, x, y);
1629 wlsc_input_device_set_pointer_image(device,
1630 WLSC_POINTER_LEFT_PTR);
1635 const static struct wl_input_device_interface input_device_interface = {
1636 input_device_attach,
1640 bind_input_device(struct wl_client *client,
1641 void *data, uint32_t version, uint32_t id)
1643 struct wl_input_device *device = data;
1644 struct wl_resource *resource;
1646 resource = wl_client_add_object(client, &wl_input_device_interface,
1647 &input_device_interface, id, data);
1648 wl_list_insert(&device->resource_list, &resource->link);
1652 wlsc_input_device_init(struct wlsc_input_device *device,
1653 struct wlsc_compositor *ec)
1655 wl_input_device_init(&device->input_device, &ec->compositor);
1657 wl_display_add_global(ec->wl_display, &wl_input_device_interface,
1658 device, bind_input_device);
1660 device->sprite = wlsc_surface_create(ec,
1661 device->input_device.x,
1662 device->input_device.y, 32, 32);
1663 wl_list_insert(&ec->surface_list, &device->sprite->link);
1665 device->hotspot_x = 16;
1666 device->hotspot_y = 16;
1667 device->modifier_state = 0;
1669 device->input_device.motion_grab.interface = &motion_grab_interface;
1671 wl_list_insert(ec->input_device_list.prev, &device->link);
1673 wlsc_input_device_set_pointer_image(device, WLSC_POINTER_LEFT_PTR);
1677 bind_output(struct wl_client *client,
1678 void *data, uint32_t version, uint32_t id)
1680 struct wlsc_output *output = data;
1681 struct wlsc_mode *mode;
1682 struct wl_resource *resource;
1684 resource = wl_client_add_object(client,
1685 &wl_output_interface, NULL, id, data);
1687 wl_resource_post_event(resource,
1694 output->make, output->model);
1696 wl_list_for_each (mode, &output->mode_list, link) {
1697 wl_resource_post_event(resource,
1706 static const char vertex_shader[] =
1707 "uniform mat4 proj;\n"
1708 "attribute vec2 position;\n"
1709 "attribute vec2 texcoord;\n"
1710 "varying vec2 v_texcoord;\n"
1713 " gl_Position = proj * vec4(position, 0.0, 1.0);\n"
1714 " v_texcoord = texcoord;\n"
1717 static const char texture_fragment_shader[] =
1718 "precision mediump float;\n"
1719 "varying vec2 v_texcoord;\n"
1720 "uniform sampler2D tex;\n"
1723 " gl_FragColor = texture2D(tex, v_texcoord)\n;"
1726 static const char solid_fragment_shader[] =
1727 "precision mediump float;\n"
1728 "uniform vec4 color;\n"
1731 " gl_FragColor = color\n;"
1735 compile_shader(GLenum type, const char *source)
1741 s = glCreateShader(type);
1742 glShaderSource(s, 1, &source, NULL);
1744 glGetShaderiv(s, GL_COMPILE_STATUS, &status);
1746 glGetShaderInfoLog(s, sizeof msg, NULL, msg);
1747 fprintf(stderr, "shader info: %s\n", msg);
1755 wlsc_shader_init(struct wlsc_shader *shader,
1756 const char *vertex_source, const char *fragment_source)
1761 shader->vertex_shader =
1762 compile_shader(GL_VERTEX_SHADER, vertex_source);
1763 shader->fragment_shader =
1764 compile_shader(GL_FRAGMENT_SHADER, fragment_source);
1766 shader->program = glCreateProgram();
1767 glAttachShader(shader->program, shader->vertex_shader);
1768 glAttachShader(shader->program, shader->fragment_shader);
1769 glBindAttribLocation(shader->program, 0, "position");
1770 glBindAttribLocation(shader->program, 1, "texcoord");
1772 glLinkProgram(shader->program);
1773 glGetProgramiv(shader->program, GL_LINK_STATUS, &status);
1775 glGetProgramInfoLog(shader->program, sizeof msg, NULL, msg);
1776 fprintf(stderr, "link info: %s\n", msg);
1780 shader->proj_uniform = glGetUniformLocation(shader->program, "proj");
1781 shader->tex_uniform = glGetUniformLocation(shader->program, "tex");
1787 init_solid_shader(struct wlsc_shader *shader,
1788 GLuint vertex_shader, const char *fragment_source)
1793 shader->vertex_shader = vertex_shader;
1794 shader->fragment_shader =
1795 compile_shader(GL_FRAGMENT_SHADER, fragment_source);
1797 shader->program = glCreateProgram();
1798 glAttachShader(shader->program, shader->vertex_shader);
1799 glAttachShader(shader->program, shader->fragment_shader);
1800 glBindAttribLocation(shader->program, 0, "position");
1801 glBindAttribLocation(shader->program, 1, "texcoord");
1803 glLinkProgram(shader->program);
1804 glGetProgramiv(shader->program, GL_LINK_STATUS, &status);
1806 glGetProgramInfoLog(shader->program, sizeof msg, NULL, msg);
1807 fprintf(stderr, "link info: %s\n", msg);
1811 shader->proj_uniform = glGetUniformLocation(shader->program, "proj");
1812 shader->color_uniform = glGetUniformLocation(shader->program, "color");
1818 wlsc_output_destroy(struct wlsc_output *output)
1820 pixman_region32_fini(&output->region);
1821 pixman_region32_fini(&output->previous_damage);
1822 destroy_surface(&output->background->surface.resource);
1826 wlsc_output_move(struct wlsc_output *output, int x, int y)
1828 struct wlsc_compositor *c = output->compositor;
1834 if (output->background) {
1835 output->background->x = x;
1836 output->background->y = y;
1839 pixman_region32_init(&output->previous_damage);
1840 pixman_region32_init_rect(&output->region, x, y,
1841 output->current->width,
1842 output->current->height);
1844 wlsc_matrix_init(&output->matrix);
1845 wlsc_matrix_translate(&output->matrix,
1846 -output->x - output->current->width / 2.0,
1847 -output->y - output->current->height / 2.0, 0);
1849 flip = (output->flags & WL_OUTPUT_FLIPPED) ? -1 : 1;
1850 wlsc_matrix_scale(&output->matrix,
1851 2.0 / output->current->width,
1852 flip * 2.0 / output->current->height, 1);
1854 pixman_region32_union(&c->damage, &c->damage, &output->region);
1858 wlsc_output_init(struct wlsc_output *output, struct wlsc_compositor *c,
1859 int x, int y, int width, int height, uint32_t flags)
1861 output->compositor = c;
1864 output->mm_width = width;
1865 output->mm_height = height;
1867 output->background =
1868 background_create(output, option_background);
1870 if (output->background != NULL)
1871 wl_list_insert(c->surface_list.prev,
1872 &output->background->link);
1874 output->flags = flags;
1875 wlsc_output_move(output, x, y);
1877 output->scanout_buffer_destroy_listener.func =
1878 output_handle_scanout_buffer_destroy;
1879 wl_list_init(&output->scanout_buffer_destroy_listener.link);
1880 wl_list_init(&output->frame_callback_list);
1882 output->resource.object.interface = &wl_output_interface;
1883 wl_display_add_global(c->wl_display,
1884 &wl_output_interface, output, bind_output);
1888 shm_buffer_created(struct wl_buffer *buffer)
1890 struct wl_list *surfaces_attached_to;
1892 surfaces_attached_to = malloc(sizeof *surfaces_attached_to);
1893 if (!surfaces_attached_to) {
1894 buffer->user_data = NULL;
1898 wl_list_init(surfaces_attached_to);
1900 buffer->user_data = surfaces_attached_to;
1904 shm_buffer_damaged(struct wl_buffer *buffer,
1905 int32_t x, int32_t y, int32_t width, int32_t height)
1907 struct wl_list *surfaces_attached_to = buffer->user_data;
1908 struct wlsc_surface *es;
1909 GLsizei tex_width = wl_shm_buffer_get_stride(buffer) / 4;
1911 wl_list_for_each(es, surfaces_attached_to, buffer_link) {
1912 glBindTexture(GL_TEXTURE_2D, es->texture);
1913 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
1914 tex_width, buffer->height, 0,
1915 GL_BGRA_EXT, GL_UNSIGNED_BYTE,
1916 wl_shm_buffer_get_data(buffer));
1917 /* Hmm, should use glTexSubImage2D() here but GLES2 doesn't
1918 * support any unpack attributes except GL_UNPACK_ALIGNMENT. */
1923 shm_buffer_destroyed(struct wl_buffer *buffer)
1925 struct wl_list *surfaces_attached_to = buffer->user_data;
1926 struct wlsc_surface *es, *next;
1928 wl_list_for_each_safe(es, next, surfaces_attached_to, buffer_link) {
1929 wl_list_remove(&es->buffer_link);
1930 wl_list_init(&es->buffer_link);
1933 free(surfaces_attached_to);
1936 const static struct wl_shm_callbacks shm_callbacks = {
1939 shm_buffer_destroyed
1943 wlsc_compositor_init(struct wlsc_compositor *ec, struct wl_display *display)
1945 struct wl_event_loop *loop;
1946 const char *extensions;
1948 ec->wl_display = display;
1950 wl_compositor_init(&ec->compositor, &compositor_interface, display);
1952 ec->shm = wl_shm_init(display, &shm_callbacks);
1954 ec->image_target_texture_2d =
1955 (void *) eglGetProcAddress("glEGLImageTargetTexture2DOES");
1956 ec->image_target_renderbuffer_storage = (void *)
1957 eglGetProcAddress("glEGLImageTargetRenderbufferStorageOES");
1958 ec->create_image = (void *) eglGetProcAddress("eglCreateImageKHR");
1959 ec->destroy_image = (void *) eglGetProcAddress("eglDestroyImageKHR");
1961 (void *) eglGetProcAddress("eglBindWaylandDisplayWL");
1962 ec->unbind_display =
1963 (void *) eglGetProcAddress("eglUnbindWaylandDisplayWL");
1965 extensions = (const char *) glGetString(GL_EXTENSIONS);
1966 if (!strstr(extensions, "GL_EXT_texture_format_BGRA8888")) {
1968 "GL_EXT_texture_format_BGRA8888 not available\n");
1973 (const char *) eglQueryString(ec->display, EGL_EXTENSIONS);
1974 if (strstr(extensions, "EGL_WL_bind_wayland_display"))
1975 ec->has_bind_display = 1;
1976 if (ec->has_bind_display)
1977 ec->bind_display(ec->display, ec->wl_display);
1979 wl_list_init(&ec->surface_list);
1980 wl_list_init(&ec->input_device_list);
1981 wl_list_init(&ec->output_list);
1982 wl_list_init(&ec->binding_list);
1983 wl_list_init(&ec->animation_list);
1984 wlsc_spring_init(&ec->fade.spring, 0.8, 0.0, 0.0);
1985 ec->fade.animation.frame = fade_frame;
1986 wl_list_init(&ec->fade.animation.link);
1988 wlsc_compositor_add_binding(ec, KEY_BACKSPACE, 0,
1989 MODIFIER_CTRL | MODIFIER_ALT,
1990 terminate_binding, ec);
1992 create_pointer_images(ec);
1994 screenshooter_create(ec);
1996 glActiveTexture(GL_TEXTURE0);
1998 if (wlsc_shader_init(&ec->texture_shader,
1999 vertex_shader, texture_fragment_shader) < 0)
2001 if (init_solid_shader(&ec->solid_shader,
2002 ec->texture_shader.vertex_shader,
2003 solid_fragment_shader) < 0)
2006 loop = wl_display_get_event_loop(ec->wl_display);
2007 ec->idle_source = wl_event_loop_add_timer(loop, idle_handler, ec);
2008 wl_event_source_timer_update(ec->idle_source, option_idle_time * 1000);
2010 pixman_region32_init(&ec->damage);
2011 wlsc_compositor_schedule_repaint(ec);
2017 wlsc_compositor_shutdown(struct wlsc_compositor *ec)
2019 struct wlsc_output *output;
2021 /* Destroy all outputs associated with this compositor */
2022 wl_list_for_each(output, &ec->output_list, link)
2023 output->destroy(output);
2026 static int on_term_signal(int signal_number, void *data)
2028 struct wl_display *display = data;
2030 fprintf(stderr, "caught signal %d\n", signal_number);
2031 wl_display_terminate(display);
2037 load_module(const char *name, const char *entrypoint, void **handle)
2039 char path[PATH_MAX];
2040 void *module, *init;
2043 snprintf(path, sizeof path, MODULEDIR "/%s", name);
2045 snprintf(path, sizeof path, "%s", name);
2047 module = dlopen(path, RTLD_LAZY);
2050 "failed to load module: %s\n", dlerror());
2054 init = dlsym(module, entrypoint);
2057 "failed to lookup init function: %s\n", dlerror());
2064 int main(int argc, char *argv[])
2066 struct wl_display *display;
2067 struct wlsc_compositor *ec;
2068 struct wl_event_loop *loop;
2070 void *shell_module, *backend_module;
2071 int (*shell_init)(struct wlsc_compositor *ec);
2072 struct wlsc_compositor
2073 *(*backend_init)(struct wl_display *display, char *options);
2074 char *backend = NULL;
2075 char *backend_options = "";
2079 static const char opts[] = "B:b:o:S:i:s:x";
2080 static const struct option longopts[ ] = {
2081 { "backend", 1, NULL, 'B' },
2082 { "backend-options", 1, NULL, 'o' },
2083 { "background", 1, NULL, 'b' },
2084 { "socket", 1, NULL, 'S' },
2085 { "idle-time", 1, NULL, 'i' },
2086 { "shell", 1, NULL, 's' },
2087 { "xserver", 0, NULL, 'x' },
2091 while (o = getopt_long(argc, argv, opts, longopts, &o), o > 0) {
2094 option_background = optarg;
2100 backend_options = optarg;
2103 option_socket_name = optarg;
2106 option_idle_time = strtol(optarg, &p, 0);
2109 "invalid idle time option: %s\n",
2123 display = wl_display_create();
2125 loop = wl_display_get_event_loop(display);
2126 wl_event_loop_add_signal(loop, SIGTERM, on_term_signal, display);
2127 wl_event_loop_add_signal(loop, SIGINT, on_term_signal, display);
2128 wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal, display);
2130 wl_list_init(&child_process_list);
2131 wl_event_loop_add_signal(loop, SIGCHLD, sigchld_handler, NULL);
2134 if (getenv("WAYLAND_DISPLAY"))
2135 backend = "wayland-backend.so";
2136 else if (getenv("DISPLAY"))
2137 backend = "x11-backend.so";
2138 else if (getenv("OPENWFD"))
2139 backend = "openwfd-backend.so";
2141 backend = "drm-backend.so";
2145 shell = "desktop-shell.so";
2147 backend_init = load_module(backend, "backend_init", &backend_module);
2151 shell_init = load_module(shell, "shell_init", &shell_module);
2155 ec = backend_init(display, backend_options);
2157 fprintf(stderr, "failed to create compositor\n");
2161 if (shell_init(ec) < 0)
2165 wlsc_xserver_init(ec);
2167 if (wl_display_add_socket(display, option_socket_name)) {
2168 fprintf(stderr, "failed to add socket: %m\n");
2172 wl_display_run(display);
2175 wlsc_xserver_destroy(ec);
2177 if (ec->has_bind_display)
2178 ec->unbind_display(ec->display, display);
2179 wl_display_destroy(display);