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