compositor/compositor.c

   1 /*
   2  * Copyright © 2008 Kristian Høgsberg
   3  *
   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.
   8  *
   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.
  13  *
  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.
  17  */
  18
  19 #define _GNU_SOURCE
  20
  21 #include "config.h"
  22
  23 #include <stdio.h>
  24 #include <string.h>
  25 #include <stdlib.h>
  26 #include <stdint.h>
  27 #include <limits.h>
  28 #include <stdarg.h>
  29 #include <sys/ioctl.h>
  30 #include <fcntl.h>
  31 #include <unistd.h>
  32 #include <gdk-pixbuf/gdk-pixbuf.h>
  33 #include <math.h>
  34 #include <linux/input.h>
  35 #include <dlfcn.h>
  36
  37 #include "wayland-server.h"
  38 #include "compositor.h"
  39
  40 /* The plan here is to generate a random anonymous socket name and
  41  * advertise that through a service on the session dbus.
  42  */
  43 static const char *option_socket_name = NULL;
  44 static const char *option_background = "background.jpg";
  45 static const char *option_geometry = "1024x640";
  46 static const char *option_shell = NULL;
  47 static int option_idle_time = 5;
  48 static int option_connector = 0;
  49
  50 static const GOptionEntry option_entries[] = {
  51         { "background", 'b', 0, G_OPTION_ARG_STRING,
  52           &option_background, "Background image" },
  53         { "connector", 'c', 0, G_OPTION_ARG_INT,
  54           &option_connector, "KMS connector" },
  55         { "geometry", 'g', 0, G_OPTION_ARG_STRING,
  56           &option_geometry, "Geometry" },
  57         { "socket", 's', 0, G_OPTION_ARG_STRING,
  58           &option_socket_name, "Socket Name" },
  59         { "idle-time", 'i', 0, G_OPTION_ARG_INT,
  60           &option_idle_time, "Screensaver idle time" },
  61         { "shell", 'i', 0, G_OPTION_ARG_STRING,
  62           &option_shell, "Shell module" },
  63         { NULL }
  64 };
  65
  66 static void
  67 wlsc_matrix_init(struct wlsc_matrix *matrix)
  68 {
  69         static const struct wlsc_matrix identity = {
  70                 { 1, 0, 0, 0,  0, 1, 0, 0,  0, 0, 1, 0,  0, 0, 0, 1 }
  71         };
  72
  73         memcpy(matrix, &identity, sizeof identity);
  74 }
  75
  76 static void
  77 wlsc_matrix_multiply(struct wlsc_matrix *m, const struct wlsc_matrix *n)
  78 {
  79         struct wlsc_matrix tmp;
  80         const GLfloat *row, *column;
  81         div_t d;
  82         int i, j;
  83
  84         for (i = 0; i < 16; i++) {
  85                 tmp.d[i] = 0;
  86                 d = div(i, 4);
  87                 row = m->d + d.quot * 4;
  88                 column = n->d + d.rem;
  89                 for (j = 0; j < 4; j++)
  90                         tmp.d[i] += row[j] * column[j * 4];
  91         }
  92         memcpy(m, &tmp, sizeof tmp);
  93 }
  94
  95 static void
  96 wlsc_matrix_translate(struct wlsc_matrix *matrix, GLfloat x, GLfloat y, GLfloat z)
  97 {
  98         struct wlsc_matrix translate = {
  99                 { 1, 0, 0, 0,  0, 1, 0, 0,  0, 0, 1, 0,  x, y, z, 1 }
 100         };
 101
 102         wlsc_matrix_multiply(matrix, &translate);
 103 }
 104
 105 static void
 106 wlsc_matrix_scale(struct wlsc_matrix *matrix, GLfloat x, GLfloat y, GLfloat z)
 107 {
 108         struct wlsc_matrix scale = {
 109                 { x, 0, 0, 0,  0, y, 0, 0,  0, 0, z, 0,  0, 0, 0, 1 }
 110         };
 111
 112         wlsc_matrix_multiply(matrix, &scale);
 113 }
 114
 115 static void
 116 wlsc_matrix_transform(struct wlsc_matrix *matrix, struct wlsc_vector *v)
 117 {
 118         int i, j;
 119         struct wlsc_vector t;
 120
 121         for (i = 0; i < 4; i++) {
 122                 t.f[i] = 0;
 123                 for (j = 0; j < 4; j++)
 124                         t.f[i] += v->f[j] * matrix->d[i + j * 4];
 125         }
 126
 127         *v = t;
 128 }
 129
 130 WL_EXPORT void
 131 wlsc_tweener_init(struct wlsc_tweener *tweener,
 132                   double k, double current, double target)
 133 {
 134         tweener->k = k;
 135         tweener->current = current;
 136         tweener->previous = current;
 137         tweener->target = target;
 138 }
 139
 140 WL_EXPORT void
 141 wlsc_tweener_update(struct wlsc_tweener *tweener, uint32_t msec)
 142 {
 143         double force, current, step;
 144
 145         step = (msec - tweener->timestamp) / 100.0;
 146         tweener->timestamp = msec;
 147
 148         current = tweener->current;
 149         force = tweener->k * (tweener->target - current) / 10.0 +
 150                 (tweener->previous - current);
 151
 152         tweener->current =
 153                 current + (current - tweener->previous) + force * step * step;
 154         tweener->previous = current;
 155
 156         if (tweener->current >= 1.0) {
 157                 tweener->current = 1.0;
 158                 tweener->previous = 1.0;
 159         }
 160
 161         if (tweener->current <= 0.0) {
 162                 tweener->current = 0.0;
 163                 tweener->previous = 0.0;
 164         }
 165 }
 166
 167 WL_EXPORT int
 168 wlsc_tweener_done(struct wlsc_tweener *tweener)
 169 {
 170         return fabs(tweener->previous - tweener->target) < 0.0002 &&
 171                 fabs(tweener->current - tweener->target) < 0.0002;
 172 }
 173
 174 WL_EXPORT struct wlsc_surface *
 175 wlsc_surface_create(struct wlsc_compositor *compositor,
 176                     int32_t x, int32_t y, int32_t width, int32_t height)
 177 {
 178         struct wlsc_surface *surface;
 179
 180         surface = malloc(sizeof *surface);
 181         if (surface == NULL)
 182                 return NULL;
 183
 184         wl_list_init(&surface->surface.destroy_listener_list);
 185         wl_list_init(&surface->link);
 186         wl_list_init(&surface->buffer_link);
 187         surface->map_type = WLSC_SURFACE_MAP_UNMAPPED;
 188
 189         glGenTextures(1, &surface->texture);
 190         glBindTexture(GL_TEXTURE_2D, surface->texture);
 191         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 192         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 193         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 194         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 195
 196         surface->compositor = compositor;
 197         surface->visual = NULL;
 198         surface->image = EGL_NO_IMAGE_KHR;
 199         surface->saved_texture = 0;
 200         surface->buffer = NULL;
 201         surface->x = x;
 202         surface->y = y;
 203         surface->width = width;
 204         surface->height = height;
 205         wlsc_matrix_init(&surface->matrix);
 206         wlsc_matrix_scale(&surface->matrix, width, height, 1);
 207         wlsc_matrix_translate(&surface->matrix, x, y, 0);
 208
 209         wlsc_matrix_init(&surface->matrix_inv);
 210         wlsc_matrix_translate(&surface->matrix_inv, -x, -y, 0);
 211         wlsc_matrix_scale(&surface->matrix_inv, 1.0 / width, 1.0 / height, 1);
 212
 213         return surface;
 214 }
 215
 216 WL_EXPORT void
 217 wlsc_surface_damage_rectangle(struct wlsc_surface *surface,
 218                               int32_t x, int32_t y,
 219                               int32_t width, int32_t height)
 220 {
 221         struct wlsc_compositor *compositor = surface->compositor;
 222
 223         pixman_region32_union_rect(&compositor->damage_region,
 224                                    &compositor->damage_region,
 225                                    surface->x + x, surface->y + y,
 226                                    width, height);
 227         wlsc_compositor_schedule_repaint(compositor);
 228 }
 229
 230 WL_EXPORT void
 231 wlsc_surface_damage(struct wlsc_surface *surface)
 232 {
 233         wlsc_surface_damage_rectangle(surface, 0, 0,
 234                                       surface->width, surface->height);
 235 }
 236
 237 WL_EXPORT uint32_t
 238 wlsc_compositor_get_time(void)
 239 {
 240         struct timeval tv;
 241
 242         gettimeofday(&tv, NULL);
 243
 244         return tv.tv_sec * 1000 + tv.tv_usec / 1000;
 245 }
 246
 247 static void
 248 destroy_surface(struct wl_resource *resource, struct wl_client *client)
 249 {
 250         struct wlsc_surface *surface =
 251                 container_of(resource, struct wlsc_surface, surface.resource);
 252         struct wl_listener *l, *next;
 253         uint32_t time;
 254
 255         wlsc_surface_damage(surface);
 256
 257         wl_list_remove(&surface->link);
 258         if (surface->saved_texture == 0)
 259                 glDeleteTextures(1, &surface->texture);
 260         else
 261                 glDeleteTextures(1, &surface->saved_texture);
 262
 263
 264         if (surface->image != EGL_NO_IMAGE_KHR)
 265                 eglDestroyImageKHR(surface->compositor->display,
 266                                    surface->image);
 267
 268         wl_list_remove(&surface->buffer_link);
 269
 270         time = wlsc_compositor_get_time();
 271         wl_list_for_each_safe(l, next,
 272                               &surface->surface.destroy_listener_list, link)
 273                 l->func(l, &surface->surface, time);
 274
 275         free(surface);
 276 }
 277
 278 uint32_t *
 279 wlsc_load_image(const char *filename, int width, int height)
 280 {
 281         GdkPixbuf *pixbuf;
 282         GError *error = NULL;
 283         int stride, i, n_channels;
 284         unsigned char *pixels, *end, *argb_pixels, *s, *d;
 285
 286         pixbuf = gdk_pixbuf_new_from_file_at_scale(filename,
 287                                                    width, height,
 288                                                    FALSE, &error);
 289         if (error != NULL) {
 290                 fprintf(stderr, "failed to load image: %s\n", error->message);
 291                 g_error_free(error);
 292                 return NULL;
 293         }
 294
 295         stride = gdk_pixbuf_get_rowstride(pixbuf);
 296         pixels = gdk_pixbuf_get_pixels(pixbuf);
 297         n_channels = gdk_pixbuf_get_n_channels(pixbuf);
 298
 299         argb_pixels = malloc (height * width * 4);
 300         if (argb_pixels == NULL) {
 301                 g_object_unref(pixbuf);
 302                 return NULL;
 303         }
 304
 305         if (n_channels == 4) {
 306                 for (i = 0; i < height; i++) {
 307                         s = pixels + i * stride;
 308                         end = s + width * 4;
 309                         d = argb_pixels + i * width * 4;
 310                         while (s < end) {
 311                                 unsigned int t;
 312
 313 #define MULT(_d,c,a,t) \
 314         do { t = c * a + 0x7f; _d = ((t >> 8) + t) >> 8; } while (0)
 315
 316                                 MULT(d[0], s[2], s[3], t);
 317                                 MULT(d[1], s[1], s[3], t);
 318                                 MULT(d[2], s[0], s[3], t);
 319                                 d[3] = s[3];
 320                                 s += 4;
 321                                 d += 4;
 322                         }
 323                 }
 324         } else if (n_channels == 3) {
 325                 for (i = 0; i < height; i++) {
 326                         s = pixels + i * stride;
 327                         end = s + width * 3;
 328                         d = argb_pixels + i * width * 4;
 329                         while (s < end) {
 330                                 d[0] = s[2];
 331                                 d[1] = s[1];
 332                                 d[2] = s[0];
 333                                 d[3] = 0xff;
 334                                 s += 3;
 335                                 d += 4;
 336                         }
 337                 }
 338         }
 339
 340         g_object_unref(pixbuf);
 341
 342         return (uint32_t *) argb_pixels;
 343 }
 344
 345 static void
 346 wlsc_buffer_attach(struct wl_buffer *buffer, struct wl_surface *surface)
 347 {
 348         struct wlsc_surface *es = (struct wlsc_surface *) surface;
 349         struct wlsc_compositor *ec = es->compositor;
 350         struct wl_list *surfaces_attached_to;
 351
 352         if (es->saved_texture != 0)
 353                 es->texture = es->saved_texture;
 354
 355         glBindTexture(GL_TEXTURE_2D, es->texture);
 356
 357         if (wl_buffer_is_shm(buffer)) {
 358                 /* Unbind any EGLImage texture that may be bound, so we don't
 359                  * overwrite it.*/
 360                 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
 361                              0, 0, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, NULL);
 362                 es->pitch = wl_shm_buffer_get_stride(buffer) / 4;
 363                 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
 364                              es->pitch, buffer->height, 0,
 365                              GL_BGRA_EXT, GL_UNSIGNED_BYTE,
 366                              wl_shm_buffer_get_data(buffer));
 367                 es->visual = buffer->visual;
 368
 369                 surfaces_attached_to = buffer->user_data;
 370
 371                 if (es->buffer)
 372                         wl_list_remove(&es->buffer_link);
 373                 wl_list_insert(surfaces_attached_to, &es->buffer_link);
 374         } else {
 375                 es->image = eglCreateImageKHR(ec->display, NULL,
 376                                               EGL_WAYLAND_BUFFER_WL,
 377                                               buffer, NULL);
 378
 379                 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, es->image);
 380                 es->visual = buffer->visual;
 381                 es->pitch = es->width;
 382         }
 383 }
 384
 385 static void
 386 wlsc_sprite_attach(struct wlsc_sprite *sprite, struct wl_surface *surface)
 387 {
 388         struct wlsc_surface *es = (struct wlsc_surface *) surface;
 389
 390         es->pitch = es->width;
 391         es->image = sprite->image;
 392         if (sprite->image != EGL_NO_IMAGE_KHR) {
 393                 glBindTexture(GL_TEXTURE_2D, es->texture);
 394                 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, es->image);
 395         } else {
 396                 if (es->saved_texture == 0)
 397                         es->saved_texture = es->texture;
 398                 es->texture = sprite->texture;
 399         }
 400
 401         es->visual = sprite->visual;
 402 }
 403
 404 enum sprite_usage {
 405         SPRITE_USE_CURSOR = (1 << 0),
 406 };
 407
 408 static struct wlsc_sprite *
 409 create_sprite_from_png(struct wlsc_compositor *ec,
 410                        const char *filename, int width, int height,
 411                        uint32_t usage)
 412 {
 413         uint32_t *pixels;
 414         struct wlsc_sprite *sprite;
 415
 416         pixels = wlsc_load_image(filename, width, height);
 417         if(pixels == NULL)
 418                 return NULL;
 419
 420         sprite = malloc(sizeof *sprite);
 421         if (sprite == NULL) {
 422                 free(pixels);
 423                 return NULL;
 424         }
 425
 426         sprite->visual = &ec->compositor.premultiplied_argb_visual;
 427         sprite->width = width;
 428         sprite->height = height;
 429         sprite->image = EGL_NO_IMAGE_KHR;
 430
 431         if (usage & SPRITE_USE_CURSOR && ec->create_cursor_image != NULL)
 432                 sprite->image = ec->create_cursor_image(ec, width, height);
 433
 434         glGenTextures(1, &sprite->texture);
 435         glBindTexture(GL_TEXTURE_2D, sprite->texture);
 436         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 437         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 438         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 439         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 440
 441         if (sprite->image != EGL_NO_IMAGE_KHR) {
 442                 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, sprite->image);
 443                 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height,
 444                                 GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
 445         } else {
 446                 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, width, height, 0,
 447                              GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
 448         }
 449
 450         free(pixels);
 451
 452         return sprite;
 453 }
 454
 455 static const struct {
 456         const char *filename;
 457         int hotspot_x, hotspot_y;
 458 } pointer_images[] = {
 459         { DATADIR "/wayland/bottom_left_corner.png",     6, 30 },
 460         { DATADIR "/wayland/bottom_right_corner.png",   28, 28 },
 461         { DATADIR "/wayland/bottom_side.png",           16, 20 },
 462         { DATADIR "/wayland/grabbing.png",              20, 17 },
 463         { DATADIR "/wayland/left_ptr.png",              10,  5 },
 464         { DATADIR "/wayland/left_side.png",             10, 20 },
 465         { DATADIR "/wayland/right_side.png",            30, 19 },
 466         { DATADIR "/wayland/top_left_corner.png",        8,  8 },
 467         { DATADIR "/wayland/top_right_corner.png",      26,  8 },
 468         { DATADIR "/wayland/top_side.png",              18,  8 },
 469         { DATADIR "/wayland/xterm.png",                 15, 15 }
 470 };
 471
 472 static void
 473 create_pointer_images(struct wlsc_compositor *ec)
 474 {
 475         int i, count;
 476         const int width = 32, height = 32;
 477
 478         count = ARRAY_LENGTH(pointer_images);
 479         ec->pointer_sprites = malloc(count * sizeof *ec->pointer_sprites);
 480         for (i = 0; i < count; i++) {
 481                 ec->pointer_sprites[i] =
 482                         create_sprite_from_png(ec,
 483                                                pointer_images[i].filename,
 484                                                width, height,
 485                                                SPRITE_USE_CURSOR);
 486         }
 487 }
 488
 489 static struct wlsc_surface *
 490 background_create(struct wlsc_output *output, const char *filename)
 491 {
 492         struct wlsc_surface *background;
 493         struct wlsc_sprite *sprite;
 494
 495         background = wlsc_surface_create(output->compositor,
 496                                          output->x, output->y,
 497                                          output->width, output->height);
 498         if (background == NULL)
 499                 return NULL;
 500
 501         sprite = create_sprite_from_png(output->compositor, filename,
 502                                         output->width, output->height, 0);
 503         if (sprite == NULL) {
 504                 free(background);
 505                 return NULL;
 506         }
 507
 508         wlsc_sprite_attach(sprite, &background->surface);
 509
 510         return background;
 511 }
 512
 513 static void
 514 wlsc_surface_draw(struct wlsc_surface *es,
 515                   struct wlsc_output *output, pixman_region32_t *clip)
 516 {
 517         struct wlsc_compositor *ec = es->compositor;
 518         GLfloat *v, inv_width, inv_height;
 519         unsigned int *p;
 520         pixman_region32_t repaint;
 521         pixman_box32_t *rectangles;
 522         int i, n;
 523
 524         pixman_region32_init_rect(&repaint,
 525                                   es->x, es->y, es->width, es->height);
 526         pixman_region32_intersect(&repaint, &repaint, clip);
 527         if (!pixman_region32_not_empty(&repaint))
 528                 return;
 529
 530         if (es->visual == &ec->compositor.argb_visual) {
 531                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 532                 glEnable(GL_BLEND);
 533         } else if (es->visual == &ec->compositor.premultiplied_argb_visual) {
 534                 glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
 535                 glEnable(GL_BLEND);
 536         } else {
 537                 glDisable(GL_BLEND);
 538         }
 539
 540         rectangles = pixman_region32_rectangles(&repaint, &n);
 541         v = wl_array_add(&ec->vertices, n * 16 * sizeof *v);
 542         p = wl_array_add(&ec->indices, n * 6 * sizeof *p);
 543         inv_width = 1.0 / es->pitch;
 544         inv_height = 1.0 / es->height;
 545         for (i = 0; i < n; i++, v += 16, p += 6) {
 546                 v[ 0] = rectangles[i].x1;
 547                 v[ 1] = rectangles[i].y1;
 548                 v[ 2] = (GLfloat) (rectangles[i].x1 - es->x) * inv_width;
 549                 v[ 3] = (GLfloat) (rectangles[i].y1 - es->y) * inv_height;
 550
 551                 v[ 4] = rectangles[i].x1;
 552                 v[ 5] = rectangles[i].y2;
 553                 v[ 6] = v[ 2];
 554                 v[ 7] = (GLfloat) (rectangles[i].y2 - es->y) * inv_height;
 555
 556                 v[ 8] = rectangles[i].x2;
 557                 v[ 9] = rectangles[i].y1;
 558                 v[10] = (GLfloat) (rectangles[i].x2 - es->x) * inv_width;
 559                 v[11] = v[ 3];
 560
 561                 v[12] = rectangles[i].x2;
 562                 v[13] = rectangles[i].y2;
 563                 v[14] = v[10];
 564                 v[15] = v[ 7];
 565
 566                 p[0] = i * 4 + 0;
 567                 p[1] = i * 4 + 1;
 568                 p[2] = i * 4 + 2;
 569                 p[3] = i * 4 + 2;
 570                 p[4] = i * 4 + 1;
 571                 p[5] = i * 4 + 3;
 572         }
 573
 574         glBindTexture(GL_TEXTURE_2D, es->texture);
 575         v = ec->vertices.data;
 576         glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[0]);
 577         glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[2]);
 578         glEnableVertexAttribArray(0);
 579         glEnableVertexAttribArray(1);
 580         glDrawElements(GL_TRIANGLES, n * 6, GL_UNSIGNED_INT, ec->indices.data);
 581
 582         ec->vertices.size = 0;
 583         ec->indices.size = 0;
 584         pixman_region32_fini(&repaint);
 585 }
 586
 587 static void
 588 wlsc_surface_raise(struct wlsc_surface *surface)
 589 {
 590         struct wlsc_compositor *compositor = surface->compositor;
 591
 592         wl_list_remove(&surface->link);
 593         wl_list_insert(&compositor->surface_list, &surface->link);
 594 }
 595
 596 WL_EXPORT void
 597 wlsc_surface_update_matrix(struct wlsc_surface *es)
 598 {
 599         wlsc_matrix_init(&es->matrix);
 600         wlsc_matrix_scale(&es->matrix, es->width, es->height, 1);
 601         wlsc_matrix_translate(&es->matrix, es->x, es->y, 0);
 602
 603         wlsc_matrix_init(&es->matrix_inv);
 604         wlsc_matrix_translate(&es->matrix_inv, -es->x, -es->y, 0);
 605         wlsc_matrix_scale(&es->matrix_inv,
 606                           1.0 / es->width, 1.0 / es->height, 1);
 607 }
 608
 609 WL_EXPORT void
 610 wlsc_compositor_damage_all(struct wlsc_compositor *compositor)
 611 {
 612         struct wlsc_output *output;
 613
 614         wl_list_for_each(output, &compositor->output_list, link)
 615                 wlsc_output_damage(output);
 616 }
 617
 618 WL_EXPORT void
 619 wlsc_output_finish_frame(struct wlsc_output *output, int msecs)
 620 {
 621         struct wlsc_compositor *compositor = output->compositor;
 622         struct wlsc_surface *es;
 623         struct wlsc_animation *animation, *next;
 624
 625         wl_list_for_each(es, &compositor->surface_list, link) {
 626                 if (es->output == output) {
 627                         wl_display_post_frame(compositor->wl_display,
 628                                               &es->surface, msecs);
 629                 }
 630         }
 631
 632         output->finished = 1;
 633
 634         wl_event_source_timer_update(compositor->timer_source, 5);
 635         compositor->repaint_on_timeout = 1;
 636
 637         wl_list_for_each_safe(animation, next,
 638                               &compositor->animation_list, link)
 639                 animation->frame(animation, output, msecs);
 640 }
 641
 642 WL_EXPORT void
 643 wlsc_output_damage(struct wlsc_output *output)
 644 {
 645         struct wlsc_compositor *compositor = output->compositor;
 646
 647         pixman_region32_union_rect(&compositor->damage_region,
 648                                    &compositor->damage_region,
 649                                    output->x, output->y,
 650                                    output->width, output->height);
 651         wlsc_compositor_schedule_repaint(compositor);
 652 }
 653
 654 static void
 655 fade_frame(struct wlsc_animation *animation,
 656            struct wlsc_output *output, uint32_t msecs)
 657 {
 658         struct wlsc_compositor *compositor =
 659                 container_of(animation,
 660                              struct wlsc_compositor, fade.animation);
 661
 662         wlsc_tweener_update(&compositor->fade.tweener, msecs);
 663         if (wlsc_tweener_done(&compositor->fade.tweener)) {
 664                 if (compositor->fade.tweener.current > 0.999) {
 665                         compositor->state = WLSC_COMPOSITOR_SLEEPING;
 666                         compositor->shell->lock(compositor->shell);
 667                 }
 668                 compositor->fade.tweener.current =
 669                         compositor->fade.tweener.target;
 670                 wl_list_remove(&animation->link);
 671                 wl_list_init(&animation->link);
 672         }
 673
 674         wlsc_output_damage(output);
 675 }
 676
 677 static void
 678 fade_output(struct wlsc_output *output,
 679             GLfloat tint, pixman_region32_t *region)
 680 {
 681         struct wlsc_compositor *compositor = output->compositor;
 682         struct wlsc_surface surface;
 683         GLfloat color[4] = { 0.0, 0.0, 0.0, tint };
 684
 685         surface.compositor = compositor;
 686         surface.x = output->x;
 687         surface.y = output->y;
 688         surface.width = output->width;
 689         surface.height = output->height;
 690         surface.texture = GL_NONE;
 691
 692         if (tint <= 1.0)
 693                 surface.visual =
 694                         &compositor->compositor.premultiplied_argb_visual;
 695         else
 696                 surface.visual = &compositor->compositor.rgb_visual;
 697
 698         glUseProgram(compositor->solid_shader.program);
 699         glUniformMatrix4fv(compositor->solid_shader.proj_uniform,
 700                            1, GL_FALSE, output->matrix.d);
 701         glUniform4fv(compositor->solid_shader.color_uniform, 1, color);
 702         wlsc_surface_draw(&surface, output, region);
 703 }
 704
 705 static void
 706 wlsc_output_repaint(struct wlsc_output *output)
 707 {
 708         struct wlsc_compositor *ec = output->compositor;
 709         struct wlsc_surface *es;
 710         struct wlsc_input_device *eid;
 711         pixman_region32_t new_damage, total_damage, repaint;
 712         int using_hardware_cursor = 1;
 713
 714         output->prepare_render(output);
 715
 716         glViewport(0, 0, output->width, output->height);
 717
 718         glUseProgram(ec->texture_shader.program);
 719         glUniformMatrix4fv(ec->texture_shader.proj_uniform,
 720                            1, GL_FALSE, output->matrix.d);
 721         glUniform1i(ec->texture_shader.tex_uniform, 0);
 722
 723         pixman_region32_init(&new_damage);
 724         pixman_region32_init(&total_damage);
 725         pixman_region32_intersect_rect(&new_damage,
 726                                        &ec->damage_region,
 727                                        output->x, output->y,
 728                                        output->width, output->height);
 729         pixman_region32_subtract(&ec->damage_region,
 730                                  &ec->damage_region, &new_damage);
 731         pixman_region32_union(&total_damage, &new_damage,
 732                               &output->previous_damage_region);
 733         pixman_region32_copy(&output->previous_damage_region, &new_damage);
 734
 735         if (ec->focus)
 736                 if (output->set_hardware_cursor(output, ec->input_device) < 0)
 737                         using_hardware_cursor = 0;
 738         if (ec->fade.tweener.current > 0.001)
 739                 using_hardware_cursor = 0;
 740
 741         es = container_of(ec->surface_list.next, struct wlsc_surface, link);
 742         if (es->fullscreen_output == output) {
 743                 if (es->visual == &ec->compositor.rgb_visual &&
 744                     using_hardware_cursor) {
 745                         if (output->prepare_scanout_surface(output, es) == 0) {
 746                                 /* We're drawing nothing now,
 747                                  * draw the damaged regions later. */
 748                                 pixman_region32_union(&ec->damage_region,
 749                                                       &ec->damage_region,
 750                                                       &total_damage);
 751                                 return;
 752                         }
 753                 }
 754
 755                 if (es->width < output->width ||
 756                     es->height < output->height)
 757                         glClear(GL_COLOR_BUFFER_BIT);
 758                 wlsc_surface_draw(es, output, &total_damage);
 759         } else {
 760                 wl_list_for_each(es, &ec->surface_list, link) {
 761                         if (es->visual != &ec->compositor.rgb_visual)
 762                                 continue;
 763
 764                         pixman_region32_init_rect(&repaint,
 765                                                   es->x, es->y,
 766                                                   es->width, es->height);
 767                         wlsc_surface_draw(es, output, &total_damage);
 768                         pixman_region32_subtract(&total_damage,
 769                                                  &total_damage, &repaint);
 770                 }
 771
 772                 if (output->background)
 773                         wlsc_surface_draw(output->background,
 774                                           output, &total_damage);
 775                 else
 776                         fade_output(output, 1.0, &total_damage);
 777
 778                 glUseProgram(ec->texture_shader.program);
 779                 wl_list_for_each_reverse(es, &ec->surface_list, link) {
 780                         if (ec->overlay == es)
 781                                 continue;
 782
 783                         if (es->visual == &ec->compositor.rgb_visual) {
 784                                 pixman_region32_union_rect(&total_damage,
 785                                                            &total_damage,
 786                                                            es->x, es->y,
 787                                                            es->width, es->height);
 788                                 continue;
 789                         }
 790
 791                         wlsc_surface_draw(es, output, &total_damage);
 792                 }
 793         }
 794
 795         if (ec->overlay)
 796                 wlsc_surface_draw(ec->overlay, output, &total_damage);
 797
 798         if (ec->focus)
 799                 wl_list_for_each(eid, &ec->input_device_list, link) {
 800                         if (&eid->input_device != ec->input_device ||
 801                             !using_hardware_cursor)
 802                                 wlsc_surface_draw(eid->sprite, output,
 803                                                   &total_damage);
 804                 }
 805
 806         if (ec->fade.tweener.current > 0.001)
 807                 fade_output(output, ec->fade.tweener.current, &total_damage);
 808 }
 809
 810 static int
 811 repaint(void *data)
 812 {
 813         struct wlsc_compositor *ec = data;
 814         struct wlsc_output *output;
 815         int repainted_all_outputs = 1;
 816
 817         wl_list_for_each(output, &ec->output_list, link) {
 818                 if (!output->repaint_needed)
 819                         continue;
 820
 821                 if (!output->finished) {
 822                         repainted_all_outputs = 0;
 823                         continue;
 824                 }
 825
 826                 wlsc_output_repaint(output);
 827                 output->finished = 0;
 828                 output->repaint_needed = 0;
 829                 output->present(output);
 830         }
 831
 832         if (repainted_all_outputs)
 833                 ec->repaint_on_timeout = 0;
 834         else
 835                 wl_event_source_timer_update(ec->timer_source, 1);
 836
 837         return 1;
 838 }
 839
 840 WL_EXPORT void
 841 wlsc_compositor_schedule_repaint(struct wlsc_compositor *compositor)
 842 {
 843         struct wlsc_output *output;
 844
 845         if (compositor->state == WLSC_COMPOSITOR_SLEEPING)
 846                 return;
 847
 848         wl_list_for_each(output, &compositor->output_list, link)
 849                 output->repaint_needed = 1;
 850
 851         if (compositor->repaint_on_timeout)
 852                 return;
 853
 854         wl_event_source_timer_update(compositor->timer_source, 1);
 855         compositor->repaint_on_timeout = 1;
 856 }
 857
 858 WL_EXPORT void
 859 wlsc_compositor_fade(struct wlsc_compositor *compositor, float tint)
 860 {
 861         int done;
 862
 863         done = wlsc_tweener_done(&compositor->fade.tweener);
 864         compositor->fade.tweener.target = tint;
 865         if (wlsc_tweener_done(&compositor->fade.tweener))
 866                 return;
 867
 868         if (done)
 869                 compositor->fade.tweener.timestamp =
 870                         wlsc_compositor_get_time();
 871
 872         wlsc_compositor_damage_all(compositor);
 873         if (wl_list_empty(&compositor->fade.animation.link))
 874                 wl_list_insert(compositor->animation_list.prev,
 875                                &compositor->fade.animation.link);
 876 }
 877
 878 static void
 879 surface_destroy(struct wl_client *client,
 880                 struct wl_surface *surface)
 881 {
 882         wl_resource_destroy(&surface->resource, client);
 883 }
 884
 885 WL_EXPORT void
 886 wlsc_surface_assign_output(struct wlsc_surface *es)
 887 {
 888         struct wlsc_compositor *ec = es->compositor;
 889         struct wlsc_output *output;
 890
 891         struct wlsc_output *tmp = es->output;
 892         es->output = NULL;
 893
 894         wl_list_for_each(output, &ec->output_list, link) {
 895                 if (output->x < es->x && es->x < output->x + output->width &&
 896                     output->y < es->y && es->y < output->y + output->height) {
 897                         if (output != tmp)
 898                                 printf("assiging surface %p to output %p\n",
 899                                        es, output);
 900                         es->output = output;
 901                 }
 902         }
 903
 904         if (es->output == NULL) {
 905                 printf("no output found\n");
 906                 es->output = container_of(ec->output_list.next,
 907                                           struct wlsc_output, link);
 908         }
 909 }
 910
 911 static void
 912 surface_attach(struct wl_client *client,
 913                struct wl_surface *surface, struct wl_buffer *buffer,
 914                int32_t x, int32_t y)
 915 {
 916         struct wlsc_surface *es = (struct wlsc_surface *) surface;
 917
 918         /* FIXME: This damages the entire old surface, but we should
 919          * really just damage the part that's no longer covered by the
 920          * surface.  Anything covered by the new surface will be
 921          * damaged by the client. */
 922         wlsc_surface_damage(es);
 923
 924         wlsc_buffer_attach(buffer, surface);
 925
 926         es->buffer = buffer;
 927         es->x += x;
 928         es->y += y;
 929         es->width = buffer->width;
 930         es->height = buffer->height;
 931         if (x != 0 || y != 0)
 932                 wlsc_surface_assign_output(es);
 933         wlsc_surface_update_matrix(es);
 934
 935         es->compositor->shell->attach(es->compositor->shell, es);
 936 }
 937
 938 static void
 939 surface_map_toplevel(struct wl_client *client,
 940                      struct wl_surface *surface)
 941 {
 942         struct wlsc_surface *es = (struct wlsc_surface *) surface;
 943         struct wlsc_compositor *ec = es->compositor;
 944
 945         switch (es->map_type) {
 946         case WLSC_SURFACE_MAP_UNMAPPED:
 947                 es->x = 10 + random() % 400;
 948                 es->y = 10 + random() % 400;
 949                 wlsc_surface_update_matrix(es);
 950                 /* assign to first output */
 951                 es->output = container_of(ec->output_list.next,
 952                                           struct wlsc_output, link);
 953                 wl_list_insert(&es->compositor->surface_list, &es->link);
 954                 break;
 955         case WLSC_SURFACE_MAP_TOPLEVEL:
 956                 return;
 957         case WLSC_SURFACE_MAP_FULLSCREEN:
 958                 es->fullscreen_output = NULL;
 959                 es->x = es->saved_x;
 960                 es->y = es->saved_y;
 961                 wlsc_surface_update_matrix(es);
 962                 break;
 963         default:
 964                 break;
 965         }
 966
 967         wlsc_surface_damage(es);
 968         es->map_type = WLSC_SURFACE_MAP_TOPLEVEL;
 969 }
 970
 971 static void
 972 surface_map_transient(struct wl_client *client,
 973                       struct wl_surface *surface, struct wl_surface *parent,
 974                       int x, int y, uint32_t flags)
 975 {
 976         struct wlsc_surface *es = (struct wlsc_surface *) surface;
 977         struct wlsc_surface *pes = (struct wlsc_surface *) parent;
 978
 979         switch (es->map_type) {
 980         case WLSC_SURFACE_MAP_UNMAPPED:
 981                 wl_list_insert(&es->compositor->surface_list, &es->link);
 982                 /* assign to parents output  */
 983                 es->output = pes->output;
 984                 break;
 985         case WLSC_SURFACE_MAP_FULLSCREEN:
 986                 es->fullscreen_output = NULL;
 987                 break;
 988         default:
 989                 break;
 990         }
 991
 992         es->x = pes->x + x;
 993         es->y = pes->y + y;
 994
 995         wlsc_surface_update_matrix(es);
 996         wlsc_surface_damage(es);
 997         es->map_type = WLSC_SURFACE_MAP_TRANSIENT;
 998 }
 999
1000 static void
1001 surface_map_fullscreen(struct wl_client *client, struct wl_surface *surface)
1002 {
1003         struct wlsc_surface *es = (struct wlsc_surface *) surface;
1004         struct wlsc_output *output;
1005
1006         /* FIXME: Fullscreen on first output */
1007         /* FIXME: Handle output going away */
1008         output = container_of(es->compositor->output_list.next,
1009                               struct wlsc_output, link);
1010
1011         switch (es->map_type) {
1012         case WLSC_SURFACE_MAP_UNMAPPED:
1013                 es->x = 10 + random() % 400;
1014                 es->y = 10 + random() % 400;
1015                 /* assign to first output */
1016                 es->output = output;
1017                 wl_list_insert(&es->compositor->surface_list, &es->link);
1018                 break;
1019         case WLSC_SURFACE_MAP_FULLSCREEN:
1020                 return;
1021         default:
1022                 break;
1023         }
1024
1025         es->saved_x = es->x;
1026         es->saved_y = es->y;
1027         es->x = (output->width - es->width) / 2;
1028         es->y = (output->height - es->height) / 2;
1029         es->fullscreen_output = output;
1030         wlsc_surface_update_matrix(es);
1031         wlsc_surface_damage(es);
1032         es->map_type = WLSC_SURFACE_MAP_FULLSCREEN;
1033 }
1034
1035 static void
1036 surface_damage(struct wl_client *client,
1037                struct wl_surface *surface,
1038                int32_t x, int32_t y, int32_t width, int32_t height)
1039 {
1040         struct wlsc_surface *es = (struct wlsc_surface *) surface;
1041
1042         wlsc_surface_damage_rectangle(es, x, y, width, height);
1043 }
1044
1045 const static struct wl_surface_interface surface_interface = {
1046         surface_destroy,
1047         surface_attach,
1048         surface_map_toplevel,
1049         surface_map_transient,
1050         surface_map_fullscreen,
1051         surface_damage
1052 };
1053
1054 static void
1055 wlsc_input_device_attach(struct wlsc_input_device *device,
1056                          int x, int y, int width, int height)
1057 {
1058         wlsc_surface_damage(device->sprite);
1059
1060         device->hotspot_x = x;
1061         device->hotspot_y = y;
1062
1063         device->sprite->x = device->input_device.x - device->hotspot_x;
1064         device->sprite->y = device->input_device.y - device->hotspot_y;
1065         device->sprite->width = width;
1066         device->sprite->height = height;
1067         wlsc_surface_update_matrix(device->sprite);
1068
1069         wlsc_surface_damage(device->sprite);
1070 }
1071
1072 static void
1073 wlsc_input_device_attach_buffer(struct wlsc_input_device *device,
1074                                 struct wl_buffer *buffer, int x, int y)
1075 {
1076         wlsc_buffer_attach(buffer, &device->sprite->surface);
1077         wlsc_input_device_attach(device, x, y, buffer->width, buffer->height);
1078 }
1079
1080 static void
1081 wlsc_input_device_attach_sprite(struct wlsc_input_device *device,
1082                                 struct wlsc_sprite *sprite, int x, int y)
1083 {
1084         wlsc_sprite_attach(sprite, &device->sprite->surface);
1085         wlsc_input_device_attach(device, x, y, sprite->width, sprite->height);
1086 }
1087
1088 void
1089 wlsc_input_device_set_pointer_image(struct wlsc_input_device *device,
1090                                     enum wlsc_pointer_type type)
1091 {
1092         struct wlsc_compositor *compositor =
1093                 (struct wlsc_compositor *) device->input_device.compositor;
1094
1095         wlsc_input_device_attach_sprite(device,
1096                                         compositor->pointer_sprites[type],
1097                                         pointer_images[type].hotspot_x,
1098                                         pointer_images[type].hotspot_y);
1099 }
1100
1101 static void
1102 compositor_create_surface(struct wl_client *client,
1103                           struct wl_compositor *compositor, uint32_t id)
1104 {
1105         struct wlsc_compositor *ec = (struct wlsc_compositor *) compositor;
1106         struct wlsc_surface *surface;
1107
1108         surface = wlsc_surface_create(ec, 0, 0, 0, 0);
1109         if (surface == NULL) {
1110                 wl_client_post_no_memory(client);
1111                 return;
1112         }
1113
1114         surface->surface.resource.destroy = destroy_surface;
1115
1116         surface->surface.resource.object.id = id;
1117         surface->surface.resource.object.interface = &wl_surface_interface;
1118         surface->surface.resource.object.implementation =
1119                 (void (**)(void)) &surface_interface;
1120         surface->surface.client = client;
1121
1122         wl_client_add_resource(client, &surface->surface.resource);
1123 }
1124
1125 const static struct wl_compositor_interface compositor_interface = {
1126         compositor_create_surface,
1127 };
1128
1129 static void
1130 wlsc_surface_transform(struct wlsc_surface *surface,
1131                        int32_t x, int32_t y, int32_t *sx, int32_t *sy)
1132 {
1133         struct wlsc_vector v = { { x, y, 0, 1 } };
1134
1135         wlsc_matrix_transform(&surface->matrix_inv, &v);
1136         *sx = v.f[0] * surface->width;
1137         *sy = v.f[1] * surface->height;
1138 }
1139
1140 struct wlsc_surface *
1141 pick_surface(struct wl_input_device *device, int32_t *sx, int32_t *sy)
1142 {
1143         struct wlsc_compositor *ec =
1144                 (struct wlsc_compositor *) device->compositor;
1145         struct wlsc_surface *es;
1146
1147         wl_list_for_each(es, &ec->surface_list, link) {
1148                 wlsc_surface_transform(es, device->x, device->y, sx, sy);
1149                 if (0 <= *sx && *sx < es->width &&
1150                     0 <= *sy && *sy < es->height)
1151                         return es;
1152         }
1153
1154         return NULL;
1155 }
1156
1157
1158 static void
1159 motion_grab_motion(struct wl_grab *grab,
1160                    uint32_t time, int32_t x, int32_t y)
1161 {
1162         struct wlsc_input_device *device =
1163                 (struct wlsc_input_device *) grab->input_device;
1164         struct wlsc_surface *es =
1165                 (struct wlsc_surface *) device->input_device.pointer_focus;
1166         int32_t sx, sy;
1167
1168         wlsc_surface_transform(es, x, y, &sx, &sy);
1169         wl_client_post_event(es->surface.client,
1170                              &device->input_device.object,
1171                              WL_INPUT_DEVICE_MOTION,
1172                              time, x, y, sx, sy);
1173 }
1174
1175 static void
1176 motion_grab_button(struct wl_grab *grab,
1177                    uint32_t time, int32_t button, int32_t state)
1178 {
1179         wl_client_post_event(grab->input_device->pointer_focus->client,
1180                              &grab->input_device->object,
1181                              WL_INPUT_DEVICE_BUTTON,
1182                              time, button, state);
1183 }
1184
1185 static void
1186 motion_grab_end(struct wl_grab *grab, uint32_t time)
1187 {
1188 }
1189
1190 static const struct wl_grab_interface motion_grab_interface = {
1191         motion_grab_motion,
1192         motion_grab_button,
1193         motion_grab_end
1194 };
1195
1196 WL_EXPORT void
1197 wlsc_compositor_wake(struct wlsc_compositor *compositor)
1198 {
1199         if (compositor->idle_inhibit)
1200                 return;
1201
1202         wlsc_compositor_fade(compositor, 0.0);
1203         compositor->state = WLSC_COMPOSITOR_ACTIVE;
1204
1205         wl_event_source_timer_update(compositor->idle_source,
1206                                      option_idle_time * 1000);
1207 }
1208
1209 static void
1210 wlsc_compositor_idle_inhibit(struct wlsc_compositor *compositor)
1211 {
1212         wlsc_compositor_wake(compositor);
1213         compositor->idle_inhibit++;
1214 }
1215
1216 static void
1217 wlsc_compositor_idle_release(struct wlsc_compositor *compositor)
1218 {
1219         compositor->idle_inhibit--;
1220         wlsc_compositor_wake(compositor);
1221 }
1222
1223 static int
1224 idle_handler(void *data)
1225 {
1226         struct wlsc_compositor *compositor = data;
1227
1228         if (compositor->idle_inhibit)
1229                 return 1;
1230
1231         wlsc_compositor_fade(compositor, 1.0);
1232
1233         return 1;
1234 }
1235
1236 void
1237 notify_motion(struct wl_input_device *device, uint32_t time, int x, int y)
1238 {
1239         struct wlsc_surface *es;
1240         struct wlsc_compositor *ec =
1241                 (struct wlsc_compositor *) device->compositor;
1242         struct wlsc_output *output;
1243         const struct wl_grab_interface *interface;
1244         struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
1245         int32_t sx, sy;
1246         int x_valid = 0, y_valid = 0;
1247         int min_x = INT_MAX, min_y = INT_MAX, max_x = INT_MIN, max_y = INT_MIN;
1248
1249         wlsc_compositor_wake(ec);
1250
1251         wl_list_for_each(output, &ec->output_list, link) {
1252                 if (output->x <= x && x <= output->x + output->width)
1253                         x_valid = 1;
1254
1255                 if (output->y <= y && y <= output->y + output->height)
1256                         y_valid = 1;
1257
1258                 /* FIXME: calculate this only on output addition/deletion */
1259                 if (output->x < min_x)
1260                         min_x = output->x;
1261                 if (output->y < min_y)
1262                         min_y = output->y;
1263
1264                 if (output->x + output->width > max_x)
1265                         max_x = output->x + output->width;
1266                 if (output->y + output->height > max_y)
1267                         max_y = output->y + output->height;
1268         }
1269
1270         if (!x_valid) {
1271                 if (x < min_x)
1272                         x = min_x;
1273                 else if (x >= max_x)
1274                         x = max_x;
1275         }
1276         if (!y_valid) {
1277                 if (y < min_y)
1278                         y = min_y;
1279                 else  if (y >= max_y)
1280                         y = max_y;
1281         }
1282
1283         device->x = x;
1284         device->y = y;
1285
1286         if (device->grab) {
1287                 interface = device->grab->interface;
1288                 interface->motion(device->grab, time, x, y);
1289         } else {
1290                 es = pick_surface(device, &sx, &sy);
1291                 wl_input_device_set_pointer_focus(device,
1292                                                   &es->surface,
1293                                                   time, x, y, sx, sy);
1294                 if (es)
1295                         wl_client_post_event(es->surface.client,
1296                                              &device->object,
1297                                              WL_INPUT_DEVICE_MOTION,
1298                                              time, x, y, sx, sy);
1299         }
1300
1301         wlsc_surface_damage(wd->sprite);
1302
1303         wd->sprite->x = device->x - wd->hotspot_x;
1304         wd->sprite->y = device->y - wd->hotspot_y;
1305         wlsc_surface_update_matrix(wd->sprite);
1306
1307         wlsc_surface_damage(wd->sprite);
1308 }
1309
1310 WL_EXPORT void
1311 wlsc_surface_activate(struct wlsc_surface *surface,
1312                       struct wlsc_input_device *device, uint32_t time)
1313 {
1314         wlsc_surface_raise(surface);
1315         if (device->selection)
1316                 wlsc_selection_set_focus(device->selection,
1317                                          &surface->surface, time);
1318
1319         wl_input_device_set_keyboard_focus(&device->input_device,
1320                                            &surface->surface,
1321                                            time);
1322 }
1323
1324 struct wlsc_binding {
1325         uint32_t key;
1326         uint32_t button;
1327         uint32_t modifier;
1328         wlsc_binding_handler_t handler;
1329         void *data;
1330         struct wl_list link;
1331 };
1332
1333 void
1334 notify_button(struct wl_input_device *device,
1335               uint32_t time, int32_t button, int32_t state)
1336 {
1337         struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
1338         struct wlsc_compositor *compositor =
1339                 (struct wlsc_compositor *) device->compositor;
1340         struct wlsc_binding *b;
1341         struct wlsc_surface *surface =
1342                 (struct wlsc_surface *) device->pointer_focus;
1343
1344         if (state)
1345                 wlsc_compositor_idle_inhibit(compositor);
1346         else
1347                 wlsc_compositor_idle_release(compositor);
1348
1349         if (state && surface && device->grab == NULL) {
1350                 wlsc_surface_activate(surface, wd, time);
1351                 wl_input_device_start_grab(device,
1352                                            &device->motion_grab,
1353                                            button, time);
1354         }
1355
1356         wl_list_for_each(b, &compositor->binding_list, link) {
1357                 if (b->button == button &&
1358                     b->modifier == wd->modifier_state && state) {
1359                         b->handler(&wd->input_device,
1360                                    time, 0, button, state, b->data);
1361                         break;
1362                 }
1363         }
1364
1365         if (device->grab)
1366                 device->grab->interface->button(device->grab, time,
1367                                                 button, state);
1368
1369         if (!state && device->grab && device->grab_button == button)
1370                 wl_input_device_end_grab(device, time);
1371 }
1372
1373 static void
1374 terminate_binding(struct wl_input_device *device, uint32_t time,
1375                   uint32_t key, uint32_t button, uint32_t state, void *data)
1376 {
1377         struct wlsc_compositor *compositor = data;
1378
1379         if (state)
1380                 wl_display_terminate(compositor->wl_display);
1381 }
1382
1383 WL_EXPORT struct wlsc_binding *
1384 wlsc_compositor_add_binding(struct wlsc_compositor *compositor,
1385                             uint32_t key, uint32_t button, uint32_t modifier,
1386                             wlsc_binding_handler_t handler, void *data)
1387 {
1388         struct wlsc_binding *binding;
1389
1390         binding = malloc(sizeof *binding);
1391         if (binding == NULL)
1392                 return NULL;
1393
1394         binding->key = key;
1395         binding->button = button;
1396         binding->modifier = modifier;
1397         binding->handler = handler;
1398         binding->data = data;
1399         wl_list_insert(compositor->binding_list.prev, &binding->link);
1400
1401         return binding;
1402 }
1403
1404 WL_EXPORT void
1405 wlsc_binding_destroy(struct wlsc_binding *binding)
1406 {
1407         wl_list_remove(&binding->link);
1408         free(binding);
1409 }
1410
1411 static void
1412 update_modifier_state(struct wlsc_input_device *device,
1413                       uint32_t key, uint32_t state)
1414 {
1415         uint32_t modifier;
1416
1417         switch (key) {
1418         case KEY_LEFTCTRL:
1419         case KEY_RIGHTCTRL:
1420                 modifier = MODIFIER_CTRL;
1421                 break;
1422
1423         case KEY_LEFTALT:
1424         case KEY_RIGHTALT:
1425                 modifier = MODIFIER_ALT;
1426                 break;
1427
1428         case KEY_LEFTMETA:
1429         case KEY_RIGHTMETA:
1430                 modifier = MODIFIER_SUPER;
1431                 break;
1432
1433         default:
1434                 modifier = 0;
1435                 break;
1436         }
1437
1438         if (state)
1439                 device->modifier_state |= modifier;
1440         else
1441                 device->modifier_state &= ~modifier;
1442 }
1443
1444 void
1445 notify_key(struct wl_input_device *device,
1446            uint32_t time, uint32_t key, uint32_t state)
1447 {
1448         struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
1449         struct wlsc_compositor *compositor =
1450                 (struct wlsc_compositor *) device->compositor;
1451         uint32_t *k, *end;
1452         struct wlsc_binding *b;
1453
1454         if (state)
1455                 wlsc_compositor_idle_inhibit(compositor);
1456         else
1457                 wlsc_compositor_idle_release(compositor);
1458
1459         wl_list_for_each(b, &compositor->binding_list, link) {
1460                 if (b->key == key &&
1461                     b->modifier == wd->modifier_state) {
1462                         b->handler(&wd->input_device,
1463                                    time, key, 0, state, b->data);
1464                         break;
1465                 }
1466         }
1467
1468         update_modifier_state(wd, key, state);
1469         end = device->keys.data + device->keys.size;
1470         for (k = device->keys.data; k < end; k++) {
1471                 if (*k == key)
1472                         *k = *--end;
1473         }
1474         device->keys.size = (void *) end - device->keys.data;
1475         if (state) {
1476                 k = wl_array_add(&device->keys, sizeof *k);
1477                 *k = key;
1478         }
1479
1480         if (device->keyboard_focus != NULL)
1481                 wl_client_post_event(device->keyboard_focus->client,
1482                                      &device->object,
1483                                      WL_INPUT_DEVICE_KEY, time, key, state);
1484 }
1485
1486 void
1487 notify_pointer_focus(struct wl_input_device *device,
1488                      uint32_t time, struct wlsc_output *output,
1489                      int32_t x, int32_t y)
1490 {
1491         struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
1492         struct wlsc_compositor *compositor =
1493                 (struct wlsc_compositor *) device->compositor;
1494         struct wlsc_surface *es;
1495         int32_t sx, sy;
1496
1497         if (output) {
1498                 device->x = x;
1499                 device->y = y;
1500                 es = pick_surface(device, &sx, &sy);
1501                 wl_input_device_set_pointer_focus(device,
1502                                                   &es->surface,
1503                                                   time, x, y, sx, sy);
1504
1505                 compositor->focus = 1;
1506
1507                 wd->sprite->x = device->x - wd->hotspot_x;
1508                 wd->sprite->y = device->y - wd->hotspot_y;
1509                 wlsc_surface_update_matrix(wd->sprite);
1510         } else {
1511                 wl_input_device_set_pointer_focus(device, NULL,
1512                                                   time, 0, 0, 0, 0);
1513                 compositor->focus = 0;
1514         }
1515
1516         wlsc_surface_damage(wd->sprite);
1517 }
1518
1519 void
1520 notify_keyboard_focus(struct wl_input_device *device,
1521                       uint32_t time, struct wlsc_output *output,
1522                       struct wl_array *keys)
1523 {
1524         struct wlsc_input_device *wd =
1525                 (struct wlsc_input_device *) device;
1526         struct wlsc_compositor *compositor =
1527                 (struct wlsc_compositor *) device->compositor;
1528         struct wlsc_surface *es;
1529         uint32_t *k, *end;
1530
1531         if (!wl_list_empty(&compositor->surface_list))
1532                 es = container_of(compositor->surface_list.next,
1533                                   struct wlsc_surface, link);
1534         else
1535                 es = NULL;
1536
1537         if (output) {
1538                 wl_array_copy(&wd->input_device.keys, keys);
1539                 wd->modifier_state = 0;
1540                 end = device->keys.data + device->keys.size;
1541                 for (k = device->keys.data; k < end; k++) {
1542                         wlsc_compositor_idle_inhibit(compositor);
1543                         update_modifier_state(wd, *k, 1);
1544                 }
1545
1546                 wl_input_device_set_keyboard_focus(&wd->input_device,
1547                                                    &es->surface, time);
1548         } else {
1549                 end = device->keys.data + device->keys.size;
1550                 for (k = device->keys.data; k < end; k++)
1551                         wlsc_compositor_idle_release(compositor);
1552
1553                 wd->modifier_state = 0;
1554                 wl_input_device_set_keyboard_focus(&wd->input_device,
1555                                                    NULL, time);
1556         }
1557 }
1558
1559
1560 static void
1561 input_device_attach(struct wl_client *client,
1562                     struct wl_input_device *device_base,
1563                     uint32_t time,
1564                     struct wl_buffer *buffer, int32_t x, int32_t y)
1565 {
1566         struct wlsc_input_device *device =
1567                 (struct wlsc_input_device *) device_base;
1568
1569         if (time < device->input_device.pointer_focus_time)
1570                 return;
1571         if (device->input_device.pointer_focus == NULL)
1572                 return;
1573         if (device->input_device.pointer_focus->client != client)
1574                 return;
1575
1576         if (buffer == NULL) {
1577                 wlsc_input_device_set_pointer_image(device,
1578                                                     WLSC_POINTER_LEFT_PTR);
1579                 return;
1580         }
1581
1582         wlsc_input_device_attach_buffer(device, buffer, x, y);
1583 }
1584
1585 const static struct wl_input_device_interface input_device_interface = {
1586         input_device_attach,
1587 };
1588
1589 void
1590 wlsc_input_device_init(struct wlsc_input_device *device,
1591                        struct wlsc_compositor *ec)
1592 {
1593         wl_input_device_init(&device->input_device, &ec->compositor);
1594
1595         device->input_device.object.interface = &wl_input_device_interface;
1596         device->input_device.object.implementation =
1597                 (void (**)(void)) &input_device_interface;
1598         wl_display_add_object(ec->wl_display, &device->input_device.object);
1599         wl_display_add_global(ec->wl_display, &device->input_device.object, NULL);
1600
1601         device->sprite = wlsc_surface_create(ec,
1602                                              device->input_device.x,
1603                                              device->input_device.y, 32, 32);
1604         device->hotspot_x = 16;
1605         device->hotspot_y = 16;
1606         device->modifier_state = 0;
1607
1608         device->input_device.motion_grab.interface = &motion_grab_interface;
1609
1610         wl_list_insert(ec->input_device_list.prev, &device->link);
1611
1612         wlsc_input_device_set_pointer_image(device, WLSC_POINTER_LEFT_PTR);
1613 }
1614
1615 static void
1616 wlsc_output_post_geometry(struct wl_client *client,
1617                           struct wl_object *global, uint32_t version)
1618 {
1619         struct wlsc_output *output =
1620                 container_of(global, struct wlsc_output, object);
1621
1622         wl_client_post_event(client, global,
1623                              WL_OUTPUT_GEOMETRY,
1624                              output->x, output->y,
1625                              output->width, output->height);
1626 }
1627
1628 static const char vertex_shader[] =
1629         "uniform mat4 proj;\n"
1630         "attribute vec2 position;\n"
1631         "attribute vec2 texcoord;\n"
1632         "varying vec2 v_texcoord;\n"
1633         "void main()\n"
1634         "{\n"
1635         "   gl_Position = proj * vec4(position, 0.0, 1.0);\n"
1636         "   v_texcoord = texcoord;\n"
1637         "}\n";
1638
1639 static const char texture_fragment_shader[] =
1640         "precision mediump float;\n"
1641         "varying vec2 v_texcoord;\n"
1642         "uniform sampler2D tex;\n"
1643         "void main()\n"
1644         "{\n"
1645         "   gl_FragColor = texture2D(tex, v_texcoord)\n;"
1646         "}\n";
1647
1648 static const char solid_fragment_shader[] =
1649         "precision mediump float;\n"
1650         "varying vec2 v_texcoord;\n"
1651         "uniform vec4 color;\n"
1652         "void main()\n"
1653         "{\n"
1654         "   gl_FragColor = color\n;"
1655         "}\n";
1656
1657 static int
1658 compile_shader(GLenum type, const char *source)
1659 {
1660         GLuint s;
1661         char msg[512];
1662         GLint status;
1663
1664         s = glCreateShader(type);
1665         glShaderSource(s, 1, &source, NULL);
1666         glCompileShader(s);
1667         glGetShaderiv(s, GL_COMPILE_STATUS, &status);
1668         if (!status) {
1669                 glGetShaderInfoLog(s, sizeof msg, NULL, msg);
1670                 fprintf(stderr, "shader info: %s\n", msg);
1671                 return GL_NONE;
1672         }
1673
1674         return s;
1675 }
1676
1677 static int
1678 wlsc_shader_init(struct wlsc_shader *shader,
1679                  const char *vertex_source, const char *fragment_source)
1680 {
1681         char msg[512];
1682         GLint status;
1683
1684         shader->vertex_shader =
1685                 compile_shader(GL_VERTEX_SHADER, vertex_source);
1686         shader->fragment_shader =
1687                 compile_shader(GL_FRAGMENT_SHADER, fragment_source);
1688
1689         shader->program = glCreateProgram();
1690         glAttachShader(shader->program, shader->vertex_shader);
1691         glAttachShader(shader->program, shader->fragment_shader);
1692         glBindAttribLocation(shader->program, 0, "position");
1693         glBindAttribLocation(shader->program, 1, "texcoord");
1694
1695         glLinkProgram(shader->program);
1696         glGetProgramiv(shader->program, GL_LINK_STATUS, &status);
1697         if (!status) {
1698                 glGetProgramInfoLog(shader->program, sizeof msg, NULL, msg);
1699                 fprintf(stderr, "link info: %s\n", msg);
1700                 return -1;
1701         }
1702
1703         shader->proj_uniform = glGetUniformLocation(shader->program, "proj");
1704         shader->tex_uniform = glGetUniformLocation(shader->program, "tex");
1705
1706         return 0;
1707 }
1708
1709 static int
1710 init_solid_shader(struct wlsc_shader *shader,
1711                   GLuint vertex_shader, const char *fragment_source)
1712 {
1713         GLint status;
1714         char msg[512];
1715
1716         shader->vertex_shader = vertex_shader;
1717         shader->fragment_shader =
1718                 compile_shader(GL_FRAGMENT_SHADER, fragment_source);
1719
1720         shader->program = glCreateProgram();
1721         glAttachShader(shader->program, shader->vertex_shader);
1722         glAttachShader(shader->program, shader->fragment_shader);
1723         glBindAttribLocation(shader->program, 0, "position");
1724         glBindAttribLocation(shader->program, 1, "texcoord");
1725
1726         glLinkProgram(shader->program);
1727         glGetProgramiv(shader->program, GL_LINK_STATUS, &status);
1728         if (!status) {
1729                 glGetProgramInfoLog(shader->program, sizeof msg, NULL, msg);
1730                 fprintf(stderr, "link info: %s\n", msg);
1731                 return -1;
1732         }
1733
1734         shader->proj_uniform = glGetUniformLocation(shader->program, "proj");
1735         shader->color_uniform = glGetUniformLocation(shader->program, "color");
1736
1737         return 0;
1738 }
1739
1740 void
1741 wlsc_output_destroy(struct wlsc_output *output)
1742 {
1743         destroy_surface(&output->background->surface.resource, NULL);
1744 }
1745
1746 void
1747 wlsc_output_move(struct wlsc_output *output, int x, int y)
1748 {
1749         struct wlsc_compositor *c = output->compositor;
1750         int flip;
1751
1752         output->x = x;
1753         output->y = y;
1754
1755         if (output->background) {
1756                 output->background->x = x;
1757                 output->background->y = y;
1758                 wlsc_surface_update_matrix(output->background);
1759         }
1760
1761         pixman_region32_init(&output->previous_damage_region);
1762
1763         wlsc_matrix_init(&output->matrix);
1764         wlsc_matrix_translate(&output->matrix,
1765                               -output->x - output->width / 2.0,
1766                               -output->y - output->height / 2.0, 0);
1767
1768         flip = (output->flags & WL_OUTPUT_FLIPPED) ? -1 : 1;
1769         wlsc_matrix_scale(&output->matrix,
1770                           2.0 / output->width,
1771                           flip * 2.0 / output->height, 1);
1772
1773         pixman_region32_union_rect(&c->damage_region,
1774                                    &c->damage_region,
1775                                    x, y, output->width, output->height);
1776 }
1777
1778 void
1779 wlsc_output_init(struct wlsc_output *output, struct wlsc_compositor *c,
1780                  int x, int y, int width, int height, uint32_t flags)
1781 {
1782         output->compositor = c;
1783         output->x = x;
1784         output->y = y;
1785         output->width = width;
1786         output->height = height;
1787
1788         output->background =
1789                 background_create(output, option_background);
1790
1791         output->flags = flags;
1792         output->finished = 1;
1793         wlsc_output_move(output, x, y);
1794
1795         output->object.interface = &wl_output_interface;
1796         wl_display_add_object(c->wl_display, &output->object);
1797         wl_display_add_global(c->wl_display, &output->object,
1798                               wlsc_output_post_geometry);
1799 }
1800
1801 static void
1802 shm_buffer_created(struct wl_buffer *buffer)
1803 {
1804         struct wl_list *surfaces_attached_to;
1805
1806         surfaces_attached_to = malloc(sizeof *surfaces_attached_to);
1807         if (!surfaces_attached_to) {
1808                 buffer->user_data = NULL;
1809                 return;
1810         }
1811
1812         wl_list_init(surfaces_attached_to);
1813
1814         buffer->user_data = surfaces_attached_to;
1815 }
1816
1817 static void
1818 shm_buffer_damaged(struct wl_buffer *buffer,
1819                    int32_t x, int32_t y, int32_t width, int32_t height)
1820 {
1821         struct wl_list *surfaces_attached_to = buffer->user_data;
1822         struct wlsc_surface *es;
1823         GLsizei tex_width = wl_shm_buffer_get_stride(buffer) / 4;
1824
1825         wl_list_for_each(es, surfaces_attached_to, buffer_link) {
1826                 glBindTexture(GL_TEXTURE_2D, es->texture);
1827                 glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
1828                              tex_width, buffer->height, 0,
1829                              GL_BGRA_EXT, GL_UNSIGNED_BYTE,
1830                              wl_shm_buffer_get_data(buffer));
1831                 /* Hmm, should use glTexSubImage2D() here but GLES2 doesn't
1832                  * support any unpack attributes except GL_UNPACK_ALIGNMENT. */
1833         }
1834 }
1835
1836 static void
1837 shm_buffer_destroyed(struct wl_buffer *buffer)
1838 {
1839         struct wl_list *surfaces_attached_to = buffer->user_data;
1840         struct wlsc_surface *es, *next;
1841
1842         wl_list_for_each_safe(es, next, surfaces_attached_to, buffer_link) {
1843                 es->buffer = NULL;
1844                 wl_list_remove(&es->buffer_link);
1845         }
1846
1847         free(surfaces_attached_to);
1848 }
1849
1850 const static struct wl_shm_callbacks shm_callbacks = {
1851         shm_buffer_created,
1852         shm_buffer_damaged,
1853         shm_buffer_destroyed
1854 };
1855
1856 int
1857 wlsc_compositor_init(struct wlsc_compositor *ec, struct wl_display *display)
1858 {
1859         struct wl_event_loop *loop;
1860         const char *extensions;
1861
1862         ec->wl_display = display;
1863
1864         wl_compositor_init(&ec->compositor, &compositor_interface, display);
1865
1866         ec->shm = wl_shm_init(display, &shm_callbacks);
1867         if (strstr(eglQueryString(ec->display, EGL_EXTENSIONS),
1868                    "EGL_WL_bind_wayland_display"))
1869                 eglBindWaylandDisplayWL(ec->display, ec->wl_display);
1870
1871         wl_list_init(&ec->surface_list);
1872         wl_list_init(&ec->input_device_list);
1873         wl_list_init(&ec->output_list);
1874         wl_list_init(&ec->binding_list);
1875         wl_list_init(&ec->animation_list);
1876         wlsc_tweener_init(&ec->fade.tweener, 0.8, 0.0, 0.0);
1877         ec->fade.animation.frame = fade_frame;
1878         wl_list_init(&ec->fade.animation.link);
1879
1880         wlsc_compositor_add_binding(ec, KEY_BACKSPACE, 0,
1881                                     MODIFIER_CTRL | MODIFIER_ALT,
1882                                     terminate_binding, ec);
1883
1884         create_pointer_images(ec);
1885
1886         screenshooter_create(ec);
1887
1888         extensions = (const char *) glGetString(GL_EXTENSIONS);
1889         if (!strstr(extensions, "GL_EXT_texture_format_BGRA8888")) {
1890                 fprintf(stderr,
1891                         "GL_EXT_texture_format_BGRA8888 not available\n");
1892                 return -1;
1893         }
1894
1895         glActiveTexture(GL_TEXTURE0);
1896
1897         if (wlsc_shader_init(&ec->texture_shader,
1898                              vertex_shader, texture_fragment_shader) < 0)
1899                 return -1;
1900         if (init_solid_shader(&ec->solid_shader,
1901                               ec->texture_shader.vertex_shader,
1902                               solid_fragment_shader) < 0)
1903                 return -1;
1904
1905         loop = wl_display_get_event_loop(ec->wl_display);
1906         ec->idle_source = wl_event_loop_add_timer(loop, idle_handler, ec);
1907         wl_event_source_timer_update(ec->idle_source, option_idle_time * 1000);
1908
1909         ec->timer_source = wl_event_loop_add_timer(loop, repaint, ec);
1910         pixman_region32_init(&ec->damage_region);
1911         wlsc_compositor_schedule_repaint(ec);
1912
1913         return 0;
1914 }
1915
1916 static int on_term_signal(int signal_number, void *data)
1917 {
1918         struct wlsc_compositor *ec = data;
1919
1920         wl_display_terminate(ec->wl_display);
1921
1922         return 1;
1923 }
1924
1925 int main(int argc, char *argv[])
1926 {
1927         struct wl_display *display;
1928         struct wlsc_compositor *ec;
1929         struct wl_event_loop *loop;
1930         GError *error = NULL;
1931         GOptionContext *context;
1932         int width, height;
1933         void *shell_module;
1934         int (*shell_init)(struct wlsc_compositor *ec);
1935
1936         g_type_init(); /* GdkPixbuf needs this, it seems. */
1937
1938         context = g_option_context_new(NULL);
1939         g_option_context_add_main_entries(context, option_entries, "Wayland");
1940         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1941                 fprintf(stderr, "option parsing failed: %s\n", error->message);
1942                 exit(EXIT_FAILURE);
1943         }
1944         if (sscanf(option_geometry, "%dx%d", &width, &height) != 2) {
1945                 fprintf(stderr, "invalid geometry option: %s \n",
1946                         option_geometry);
1947                 exit(EXIT_FAILURE);
1948         }
1949
1950         display = wl_display_create();
1951
1952         ec = NULL;
1953
1954         shell_init = desktop_shell_init;
1955         if (option_shell) {
1956                 shell_module = dlopen(option_shell, RTLD_LAZY);
1957                 if (!shell_module) {
1958                         fprintf(stderr, "failed to load shell module: %m\n");
1959                         exit(EXIT_FAILURE);
1960                 }
1961                 shell_init = dlsym(shell_module, "shell_init");
1962                 if (!shell_init) {
1963                         fprintf(stderr,
1964                                 "failed to lookup shell init function: %m\n");
1965                         exit(EXIT_FAILURE);
1966                 }
1967         }
1968
1969 #if BUILD_WAYLAND_COMPOSITOR
1970         if (getenv("WAYLAND_DISPLAY"))
1971                 ec = wayland_compositor_create(display, width, height);
1972 #endif
1973
1974 #if BUILD_X11_COMPOSITOR
1975         if (ec == NULL && getenv("DISPLAY"))
1976                 ec = x11_compositor_create(display, width, height);
1977 #endif
1978
1979 #if BUILD_OPENWFD_COMPOSITOR
1980         if (ec == NULL && getenv("OPENWFD"))
1981                 ec = wfd_compositor_create(display, option_connector);
1982 #endif
1983
1984 #if BUILD_DRM_COMPOSITOR
1985         if (ec == NULL)
1986                 ec = drm_compositor_create(display, option_connector);
1987 #endif
1988
1989         if (ec == NULL) {
1990                 fprintf(stderr, "failed to create compositor\n");
1991                 exit(EXIT_FAILURE);
1992         }
1993
1994         if (shell_init(ec) < 0)
1995                 exit(EXIT_FAILURE);
1996
1997         if (wl_display_add_socket(display, option_socket_name)) {
1998                 fprintf(stderr, "failed to add socket: %m\n");
1999                 exit(EXIT_FAILURE);
2000         }
2001
2002         loop = wl_display_get_event_loop(ec->wl_display);
2003         wl_event_loop_add_signal(loop, SIGTERM, on_term_signal, ec);
2004         wl_event_loop_add_signal(loop, SIGINT, on_term_signal, ec);
2005
2006         wl_display_run(display);
2007
2008         if (strstr(eglQueryString(ec->display, EGL_EXTENSIONS),
2009                    "EGL_WL_bind_wayland_display"))
2010                 eglUnbindWaylandDisplayWL(ec->display, display);
2011         wl_display_destroy(display);
2012
2013         ec->destroy(ec);
2014
2015         return 0;
2016 }