src/compositor.h

   1 /*
   2  * Copyright © 2008-2011 Kristian Høgsberg
   3  * Copyright © 2012 Collabora, Ltd.
   4  *
   5  * Permission to use, copy, modify, distribute, and sell this software and
   6  * its documentation for any purpose is hereby granted without fee, provided
   7  * that the above copyright notice appear in all copies and that both that
   8  * copyright notice and this permission notice appear in supporting
   9  * documentation, and that the name of the copyright holders not be used in
  10  * advertising or publicity pertaining to distribution of the software
  11  * without specific, written prior permission.  The copyright holders make
  12  * no representations about the suitability of this software for any
  13  * purpose.  It is provided "as is" without express or implied warranty.
  14  *
  15  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
  16  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  17  * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
  18  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
  19  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
  20  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  21  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  22  */
  23
  24 #ifndef _WAYLAND_SYSTEM_COMPOSITOR_H_
  25 #define _WAYLAND_SYSTEM_COMPOSITOR_H_
  26
  27 #ifdef  __cplusplus
  28 extern "C" {
  29 #endif
  30
  31 #include <pixman.h>
  32 #include <xkbcommon/xkbcommon.h>
  33
  34 #define WL_HIDE_DEPRECATED
  35 #include <wayland-server.h>
  36
  37 #include "version.h"
  38 #include "matrix.h"
  39 #include "config-parser.h"
  40 #include "zalloc.h"
  41
  42 #ifndef MIN
  43 #define MIN(x,y) (((x) < (y)) ? (x) : (y))
  44 #endif
  45
  46 #define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])
  47
  48 #define container_of(ptr, type, member) ({                              \
  49         const __typeof__( ((type *)0)->member ) *__mptr = (ptr);        \
  50         (type *)( (char *)__mptr - offsetof(type,member) );})
  51
  52 struct weston_transform {
  53         struct weston_matrix matrix;
  54         struct wl_list link;
  55 };
  56
  57 struct weston_surface;
  58 struct weston_buffer;
  59 struct shell_surface;
  60 struct weston_seat;
  61 struct weston_output;
  62 struct input_method;
  63
  64 enum weston_keyboard_modifier {
  65         MODIFIER_CTRL = (1 << 0),
  66         MODIFIER_ALT = (1 << 1),
  67         MODIFIER_SUPER = (1 << 2),
  68         MODIFIER_SHIFT = (1 << 3),
  69 };
  70
  71 enum weston_keyboard_locks {
  72         WESTON_NUM_LOCK = (1 << 0),
  73         WESTON_CAPS_LOCK = (1 << 1),
  74 };
  75
  76 enum weston_led {
  77         LED_NUM_LOCK = (1 << 0),
  78         LED_CAPS_LOCK = (1 << 1),
  79         LED_SCROLL_LOCK = (1 << 2),
  80 };
  81
  82 struct weston_mode {
  83         uint32_t flags;
  84         int32_t width, height;
  85         uint32_t refresh;
  86         struct wl_list link;
  87 };
  88
  89 struct weston_shell_client {
  90         void (*send_configure)(struct weston_surface *surface, int32_t width, int32_t height);
  91 };
  92
  93 struct weston_shell_interface {
  94         void *shell;                    /* either desktop or tablet */
  95
  96         struct shell_surface *(*create_shell_surface)(void *shell,
  97                                                       struct weston_surface *surface,
  98                                                       const struct weston_shell_client *client);
  99         struct weston_view *(*get_primary_view)(void *shell,
 100                                                 struct shell_surface *shsurf);
 101
 102         void (*set_toplevel)(struct shell_surface *shsurf);
 103
 104         void (*set_transient)(struct shell_surface *shsurf,
 105                               struct weston_surface *parent,
 106                               int x, int y, uint32_t flags);
 107         void (*set_fullscreen)(struct shell_surface *shsurf,
 108                                uint32_t method,
 109                                uint32_t framerate,
 110                                struct weston_output *output);
 111         void (*set_xwayland)(struct shell_surface *shsurf,
 112                                int x, int y, uint32_t flags);
 113         int (*move)(struct shell_surface *shsurf, struct weston_seat *ws);
 114         int (*resize)(struct shell_surface *shsurf,
 115                       struct weston_seat *ws, uint32_t edges);
 116         void (*set_title)(struct shell_surface *shsurf,
 117                           const char *title);
 118         void (*set_window_geometry)(struct shell_surface *shsurf,
 119                                     int32_t x, int32_t y,
 120                                     int32_t width, int32_t height);
 121 };
 122
 123 struct weston_animation {
 124         void (*frame)(struct weston_animation *animation,
 125                       struct weston_output *output, uint32_t msecs);
 126         int frame_counter;
 127         struct wl_list link;
 128 };
 129
 130 enum {
 131         WESTON_SPRING_OVERSHOOT,
 132         WESTON_SPRING_CLAMP,
 133         WESTON_SPRING_BOUNCE
 134 };
 135
 136 struct weston_spring {
 137         double k;
 138         double friction;
 139         double current;
 140         double target;
 141         double previous;
 142         double min, max;
 143         uint32_t timestamp;
 144         uint32_t clip;
 145 };
 146
 147 struct weston_fixed_point {
 148         wl_fixed_t x, y;
 149 };
 150
 151 struct weston_output_zoom {
 152         int active;
 153         float increment;
 154         float level;
 155         float max_level;
 156         float trans_x, trans_y;
 157         struct weston_animation animation_z;
 158         struct weston_spring spring_z;
 159         struct weston_animation animation_xy;
 160         struct weston_spring spring_xy;
 161         struct weston_fixed_point from;
 162         struct weston_fixed_point to;
 163         struct weston_fixed_point current;
 164         struct wl_listener motion_listener;
 165 };
 166
 167 /* bit compatible with drm definitions. */
 168 enum dpms_enum {
 169         WESTON_DPMS_ON,
 170         WESTON_DPMS_STANDBY,
 171         WESTON_DPMS_SUSPEND,
 172         WESTON_DPMS_OFF
 173 };
 174
 175 enum weston_mode_switch_op {
 176         WESTON_MODE_SWITCH_SET_NATIVE,
 177         WESTON_MODE_SWITCH_SET_TEMPORARY,
 178         WESTON_MODE_SWITCH_RESTORE_NATIVE
 179 };
 180
 181 struct weston_output {
 182         uint32_t id;
 183         char *name;
 184
 185         void *renderer_state;
 186
 187         struct wl_list link;
 188         struct wl_list resource_list;
 189         struct wl_global *global;
 190         struct weston_compositor *compositor;
 191         struct weston_matrix matrix;
 192         struct wl_list animation_list;
 193         int32_t x, y, width, height;
 194         int32_t mm_width, mm_height;
 195         pixman_region32_t region;
 196         pixman_region32_t previous_damage;
 197         int repaint_needed;
 198         int repaint_scheduled;
 199         struct weston_output_zoom zoom;
 200         int dirty;
 201         struct wl_signal frame_signal;
 202         struct wl_signal destroy_signal;
 203         int move_x, move_y;
 204         uint32_t frame_time;
 205         int disable_planes;
 206         uint32_t default_output;
 207         int destroying;
 208
 209         char *make, *model, *serial_number;
 210         uint32_t subpixel;
 211         uint32_t transform;
 212         int32_t native_scale;
 213         int32_t current_scale;
 214         int32_t original_scale;
 215
 216         struct weston_mode *native_mode;
 217         struct weston_mode *current_mode;
 218         struct weston_mode *original_mode;
 219         struct wl_list mode_list;
 220
 221         void (*start_repaint_loop)(struct weston_output *output);
 222         int (*repaint)(struct weston_output *output,
 223                         pixman_region32_t *damage);
 224         void (*destroy)(struct weston_output *output);
 225         void (*assign_planes)(struct weston_output *output);
 226         int (*switch_mode)(struct weston_output *output, struct weston_mode *mode);
 227
 228         /* backlight values are on 0-255 range, where higher is brighter */
 229         int32_t backlight_current;
 230         void (*set_backlight)(struct weston_output *output, uint32_t value);
 231         void (*set_dpms)(struct weston_output *output, enum dpms_enum level);
 232
 233         int connection_internal;
 234         uint16_t gamma_size;
 235         void (*set_gamma)(struct weston_output *output,
 236                           uint16_t size,
 237                           uint16_t *r,
 238                           uint16_t *g,
 239                           uint16_t *b);
 240 };
 241
 242 struct weston_pointer_grab;
 243 struct weston_pointer_grab_interface {
 244         void (*focus)(struct weston_pointer_grab *grab);
 245         void (*motion)(struct weston_pointer_grab *grab, uint32_t time,
 246                        wl_fixed_t x, wl_fixed_t y);
 247         void (*button)(struct weston_pointer_grab *grab,
 248                        uint32_t time, uint32_t button, uint32_t state);
 249         void (*cancel)(struct weston_pointer_grab *grab);
 250 };
 251
 252 struct weston_pointer_grab {
 253         const struct weston_pointer_grab_interface *interface;
 254         struct weston_pointer *pointer;
 255 };
 256
 257 struct weston_keyboard_grab;
 258 struct weston_keyboard_grab_interface {
 259         void (*key)(struct weston_keyboard_grab *grab, uint32_t time,
 260                     uint32_t key, uint32_t state);
 261         void (*modifiers)(struct weston_keyboard_grab *grab, uint32_t serial,
 262                           uint32_t mods_depressed, uint32_t mods_latched,
 263                           uint32_t mods_locked, uint32_t group);
 264         void (*cancel)(struct weston_keyboard_grab *grab);
 265 };
 266
 267 struct weston_keyboard_grab {
 268         const struct weston_keyboard_grab_interface *interface;
 269         struct weston_keyboard *keyboard;
 270 };
 271
 272 struct weston_touch_grab;
 273 struct weston_touch_grab_interface {
 274         void (*down)(struct weston_touch_grab *grab,
 275                         uint32_t time,
 276                         int touch_id,
 277                         wl_fixed_t sx,
 278                         wl_fixed_t sy);
 279         void (*up)(struct weston_touch_grab *grab,
 280                         uint32_t time,
 281                         int touch_id);
 282         void (*motion)(struct weston_touch_grab *grab,
 283                         uint32_t time,
 284                         int touch_id,
 285                         wl_fixed_t sx,
 286                         wl_fixed_t sy);
 287         void (*frame)(struct weston_touch_grab *grab);
 288         void (*cancel)(struct weston_touch_grab *grab);
 289 };
 290
 291 struct weston_touch_grab {
 292         const struct weston_touch_grab_interface *interface;
 293         struct weston_touch *touch;
 294 };
 295
 296 struct weston_data_offer {
 297         struct wl_resource *resource;
 298         struct weston_data_source *source;
 299         struct wl_listener source_destroy_listener;
 300 };
 301
 302 struct weston_data_source {
 303         struct wl_resource *resource;
 304         struct wl_signal destroy_signal;
 305         struct wl_array mime_types;
 306
 307         void (*accept)(struct weston_data_source *source,
 308                        uint32_t serial, const char *mime_type);
 309         void (*send)(struct weston_data_source *source,
 310                      const char *mime_type, int32_t fd);
 311         void (*cancel)(struct weston_data_source *source);
 312 };
 313
 314 struct weston_pointer {
 315         struct weston_seat *seat;
 316
 317         struct wl_list resource_list;
 318         struct wl_list focus_resource_list;
 319         struct weston_view *focus;
 320         uint32_t focus_serial;
 321         struct wl_listener focus_view_listener;
 322         struct wl_listener focus_resource_listener;
 323         struct wl_signal focus_signal;
 324         struct wl_signal motion_signal;
 325
 326         struct weston_view *sprite;
 327         struct wl_listener sprite_destroy_listener;
 328         int32_t hotspot_x, hotspot_y;
 329
 330         struct weston_pointer_grab *grab;
 331         struct weston_pointer_grab default_grab;
 332         wl_fixed_t grab_x, grab_y;
 333         uint32_t grab_button;
 334         uint32_t grab_serial;
 335         uint32_t grab_time;
 336
 337         wl_fixed_t x, y;
 338         wl_fixed_t sx, sy;
 339         uint32_t button_count;
 340
 341         struct wl_listener output_destroy_listener;
 342 };
 343
 344
 345 struct weston_touch {
 346         struct weston_seat *seat;
 347
 348         struct wl_list resource_list;
 349         struct wl_list focus_resource_list;
 350         struct weston_view *focus;
 351         struct wl_listener focus_view_listener;
 352         struct wl_listener focus_resource_listener;
 353         uint32_t focus_serial;
 354         struct wl_signal focus_signal;
 355
 356         uint32_t num_tp;
 357
 358         struct weston_touch_grab *grab;
 359         struct weston_touch_grab default_grab;
 360         int grab_touch_id;
 361         wl_fixed_t grab_x, grab_y;
 362         uint32_t grab_serial;
 363         uint32_t grab_time;
 364 };
 365
 366 struct weston_pointer *
 367 weston_pointer_create(struct weston_seat *seat);
 368 void
 369 weston_pointer_destroy(struct weston_pointer *pointer);
 370 void
 371 weston_pointer_set_focus(struct weston_pointer *pointer,
 372                          struct weston_view *view,
 373                          wl_fixed_t sx, wl_fixed_t sy);
 374 void
 375 weston_pointer_start_grab(struct weston_pointer *pointer,
 376                           struct weston_pointer_grab *grab);
 377 void
 378 weston_pointer_end_grab(struct weston_pointer *pointer);
 379 void
 380 weston_pointer_clamp(struct weston_pointer *pointer,
 381                             wl_fixed_t *fx, wl_fixed_t *fy);
 382 void
 383 weston_pointer_move(struct weston_pointer *pointer,
 384                     wl_fixed_t x, wl_fixed_t y);
 385 void
 386 weston_pointer_set_default_grab(struct weston_pointer *pointer,
 387                 const struct weston_pointer_grab_interface *interface);
 388
 389 struct weston_keyboard *
 390 weston_keyboard_create(void);
 391 void
 392 weston_keyboard_destroy(struct weston_keyboard *keyboard);
 393 void
 394 weston_keyboard_set_focus(struct weston_keyboard *keyboard,
 395                           struct weston_surface *surface);
 396 void
 397 weston_keyboard_start_grab(struct weston_keyboard *device,
 398                            struct weston_keyboard_grab *grab);
 399 void
 400 weston_keyboard_end_grab(struct weston_keyboard *keyboard);
 401 int
 402 /*
 403  * 'mask' and 'value' should be a bitwise mask of one or more
 404  * valued of the weston_keyboard_locks enum.
 405  */
 406 weston_keyboard_set_locks(struct weston_keyboard *keyboard,
 407                           uint32_t mask, uint32_t value);
 408
 409 struct weston_touch *
 410 weston_touch_create(void);
 411 void
 412 weston_touch_destroy(struct weston_touch *touch);
 413 void
 414 weston_touch_set_focus(struct weston_seat *seat,
 415                        struct weston_view *view);
 416 void
 417 weston_touch_start_grab(struct weston_touch *device,
 418                         struct weston_touch_grab *grab);
 419 void
 420 weston_touch_end_grab(struct weston_touch *touch);
 421
 422 void
 423 wl_data_device_set_keyboard_focus(struct weston_seat *seat);
 424
 425 int
 426 wl_data_device_manager_init(struct wl_display *display);
 427
 428
 429 void
 430 weston_seat_set_selection(struct weston_seat *seat,
 431                           struct weston_data_source *source, uint32_t serial);
 432 int
 433 weston_pointer_start_drag(struct weston_pointer *pointer,
 434                        struct weston_data_source *source,
 435                        struct weston_surface *icon,
 436                        struct wl_client *client);
 437 int
 438 weston_touch_start_drag(struct weston_touch *touch,
 439                         struct weston_data_source *source,
 440                         struct weston_surface *icon,
 441                         struct wl_client *client);
 442
 443 struct weston_xkb_info {
 444         struct xkb_keymap *keymap;
 445         int keymap_fd;
 446         size_t keymap_size;
 447         char *keymap_area;
 448         int32_t ref_count;
 449         xkb_mod_index_t shift_mod;
 450         xkb_mod_index_t caps_mod;
 451         xkb_mod_index_t ctrl_mod;
 452         xkb_mod_index_t alt_mod;
 453         xkb_mod_index_t mod2_mod;
 454         xkb_mod_index_t mod3_mod;
 455         xkb_mod_index_t super_mod;
 456         xkb_mod_index_t mod5_mod;
 457         xkb_led_index_t num_led;
 458         xkb_led_index_t caps_led;
 459         xkb_led_index_t scroll_led;
 460 };
 461
 462 struct weston_keyboard {
 463         struct weston_seat *seat;
 464
 465         struct wl_list resource_list;
 466         struct wl_list focus_resource_list;
 467         struct weston_surface *focus;
 468         struct wl_listener focus_resource_listener;
 469         uint32_t focus_serial;
 470         struct wl_signal focus_signal;
 471
 472         struct weston_keyboard_grab *grab;
 473         struct weston_keyboard_grab default_grab;
 474         uint32_t grab_key;
 475         uint32_t grab_serial;
 476         uint32_t grab_time;
 477
 478         struct wl_array keys;
 479
 480         struct {
 481                 uint32_t mods_depressed;
 482                 uint32_t mods_latched;
 483                 uint32_t mods_locked;
 484                 uint32_t group;
 485         } modifiers;
 486
 487         struct weston_keyboard_grab input_method_grab;
 488         struct wl_resource *input_method_resource;
 489
 490         struct weston_xkb_info *xkb_info;
 491         struct {
 492                 struct xkb_state *state;
 493                 enum weston_led leds;
 494         } xkb_state;
 495         struct xkb_keymap *pending_keymap;
 496 };
 497
 498 struct weston_seat {
 499         struct wl_list base_resource_list;
 500
 501         struct wl_global *global;
 502         struct weston_pointer *pointer;
 503         struct weston_keyboard *keyboard;
 504         struct weston_touch *touch;
 505         int pointer_device_count;
 506         int keyboard_device_count;
 507         int touch_device_count;
 508
 509         struct weston_output *output; /* constraint */
 510
 511         struct wl_signal destroy_signal;
 512         struct wl_signal updated_caps_signal;
 513
 514         struct weston_compositor *compositor;
 515         struct wl_list link;
 516         enum weston_keyboard_modifier modifier_state;
 517         struct weston_surface *saved_kbd_focus;
 518         struct wl_listener saved_kbd_focus_listener;
 519         struct wl_list drag_resource_list;
 520
 521         uint32_t selection_serial;
 522         struct weston_data_source *selection_data_source;
 523         struct wl_listener selection_data_source_listener;
 524         struct wl_signal selection_signal;
 525
 526         void (*led_update)(struct weston_seat *ws, enum weston_led leds);
 527
 528         uint32_t slot_map;
 529         struct input_method *input_method;
 530         char *seat_name;
 531 };
 532
 533 enum {
 534         WESTON_COMPOSITOR_ACTIVE,
 535         WESTON_COMPOSITOR_IDLE,         /* shell->unlock called on activity */
 536         WESTON_COMPOSITOR_OFFSCREEN,    /* no rendering, no frame events */
 537         WESTON_COMPOSITOR_SLEEPING      /* same as offscreen, but also set dmps
 538                                          * to off */
 539 };
 540
 541 struct weston_layer_entry {
 542         struct wl_list link;
 543         struct weston_layer *layer;
 544 };
 545
 546 struct weston_layer {
 547         struct weston_layer_entry view_list;
 548         struct wl_list link;
 549         pixman_box32_t mask;
 550 };
 551
 552 struct weston_plane {
 553         struct weston_compositor *compositor;
 554         pixman_region32_t damage;
 555         pixman_region32_t clip;
 556         int32_t x, y;
 557         struct wl_list link;
 558 };
 559
 560 struct weston_renderer {
 561         int (*read_pixels)(struct weston_output *output,
 562                                pixman_format_code_t format, void *pixels,
 563                                uint32_t x, uint32_t y,
 564                                uint32_t width, uint32_t height);
 565         void (*repaint_output)(struct weston_output *output,
 566                                pixman_region32_t *output_damage);
 567         void (*flush_damage)(struct weston_surface *surface);
 568         void (*attach)(struct weston_surface *es, struct weston_buffer *buffer);
 569         void (*surface_set_color)(struct weston_surface *surface,
 570                                float red, float green,
 571                                float blue, float alpha);
 572         void (*destroy)(struct weston_compositor *ec);
 573 };
 574
 575 enum weston_capability {
 576         /* backend/renderer supports arbitrary rotation */
 577         WESTON_CAP_ROTATION_ANY                 = 0x0001,
 578
 579         /* screencaptures need to be y-flipped */
 580         WESTON_CAP_CAPTURE_YFLIP                = 0x0002,
 581
 582         /* backend/renderer has a seperate cursor plane */
 583         WESTON_CAP_CURSOR_PLANE                 = 0x0004,
 584
 585         /* backend supports setting arbitrary resolutions */
 586         WESTON_CAP_ARBITRARY_MODES              = 0x0008,
 587 };
 588
 589 struct weston_compositor {
 590         struct wl_signal destroy_signal;
 591
 592         struct wl_display *wl_display;
 593         struct weston_shell_interface shell_interface;
 594         struct weston_config *config;
 595
 596         /* surface signals */
 597         struct wl_signal create_surface_signal;
 598         struct wl_signal activate_signal;
 599         struct wl_signal transform_signal;
 600
 601         struct wl_signal kill_signal;
 602         struct wl_signal idle_signal;
 603         struct wl_signal wake_signal;
 604
 605         struct wl_signal show_input_panel_signal;
 606         struct wl_signal hide_input_panel_signal;
 607         struct wl_signal update_input_panel_signal;
 608
 609         struct wl_signal seat_created_signal;
 610         struct wl_signal output_created_signal;
 611         struct wl_signal output_destroyed_signal;
 612         struct wl_signal output_moved_signal;
 613
 614         struct wl_event_loop *input_loop;
 615         struct wl_event_source *input_loop_source;
 616
 617         struct wl_signal session_signal;
 618         int session_active;
 619
 620         struct weston_layer fade_layer;
 621         struct weston_layer cursor_layer;
 622
 623         struct wl_list output_list;
 624         struct wl_list seat_list;
 625         struct wl_list layer_list;
 626         struct wl_list view_list;
 627         struct wl_list plane_list;
 628         struct wl_list key_binding_list;
 629         struct wl_list modifier_binding_list;
 630         struct wl_list button_binding_list;
 631         struct wl_list touch_binding_list;
 632         struct wl_list axis_binding_list;
 633         struct wl_list debug_binding_list;
 634
 635         struct weston_output *default_output;
 636
 637         uint32_t state;
 638         struct wl_event_source *idle_source;
 639         uint32_t idle_inhibit;
 640         int idle_time;                  /* timeout, s */
 641
 642         const struct weston_pointer_grab_interface *default_pointer_grab;
 643
 644         /* Repaint state. */
 645         struct weston_plane primary_plane;
 646         uint32_t capabilities; /* combination of enum weston_capability */
 647
 648         struct weston_renderer *renderer;
 649
 650         pixman_format_code_t read_format;
 651
 652         void (*destroy)(struct weston_compositor *ec);
 653         void (*restore)(struct weston_compositor *ec);
 654         int (*authenticate)(struct weston_compositor *c, uint32_t id);
 655
 656         struct weston_launcher *launcher;
 657
 658         uint32_t output_id_pool;
 659
 660         struct xkb_rule_names xkb_names;
 661         struct xkb_context *xkb_context;
 662         struct weston_xkb_info *xkb_info;
 663
 664         /* Raw keyboard processing (no libxkbcommon initialization or handling) */
 665         int use_xkbcommon;
 666
 667         int32_t kb_repeat_rate;
 668         int32_t kb_repeat_delay;
 669 };
 670
 671 struct weston_buffer {
 672         struct wl_resource *resource;
 673         struct wl_signal destroy_signal;
 674         struct wl_listener destroy_listener;
 675
 676         union {
 677                 struct wl_shm_buffer *shm_buffer;
 678                 void *legacy_buffer;
 679         };
 680         int32_t width, height;
 681         uint32_t busy_count;
 682         int y_inverted;
 683 };
 684
 685 struct weston_buffer_reference {
 686         struct weston_buffer *buffer;
 687         struct wl_listener destroy_listener;
 688 };
 689
 690 struct weston_buffer_viewport {
 691         struct {
 692                 /* wl_surface.set_buffer_transform */
 693                 uint32_t transform;
 694
 695                 /* wl_surface.set_scaling_factor */
 696                 int32_t scale;
 697
 698                 /*
 699                  * If src_width != wl_fixed_from_int(-1),
 700                  * then and only then src_* are used.
 701                  */
 702                 wl_fixed_t src_x, src_y;
 703                 wl_fixed_t src_width, src_height;
 704         } buffer;
 705
 706         struct {
 707                 /*
 708                  * If width == -1, the size is inferred from the buffer.
 709                  */
 710                 int32_t width, height;
 711         } surface;
 712
 713         int changed;
 714 };
 715
 716 struct weston_region {
 717         struct wl_resource *resource;
 718         pixman_region32_t region;
 719 };
 720
 721 /* Using weston_view transformations
 722  *
 723  * To add a transformation to a view, create a struct weston_transform, and
 724  * add it to the list view->geometry.transformation_list. Whenever you
 725  * change the list, anything under view->geometry, or anything in the
 726  * weston_transforms linked into the list, you must call
 727  * weston_view_geometry_dirty().
 728  *
 729  * The order in the list defines the order of transformations. Let the list
 730  * contain the transformation matrices M1, ..., Mn as head to tail. The
 731  * transformation is applied to view-local coordinate vector p as
 732  *    P = Mn * ... * M2 * M1 * p
 733  * to produce the global coordinate vector P. The total transform
 734  *    Mn * ... * M2 * M1
 735  * is cached in view->transform.matrix, and the inverse of it in
 736  * view->transform.inverse.
 737  *
 738  * The list always contains view->transform.position transformation, which
 739  * is the translation by view->geometry.x and y.
 740  *
 741  * If you want to apply a transformation in local coordinates, add your
 742  * weston_transform to the head of the list. If you want to apply a
 743  * transformation in global coordinates, add it to the tail of the list.
 744  *
 745  * If view->geometry.parent is set, the total transformation of this
 746  * view will be the parent's total transformation and this transformation
 747  * combined:
 748  *    Mparent * Mn * ... * M2 * M1
 749  */
 750
 751 struct weston_view {
 752         struct weston_surface *surface;
 753         struct wl_list surface_link;
 754         struct wl_signal destroy_signal;
 755
 756         struct wl_list link;
 757         struct weston_layer_entry layer_link;
 758         struct weston_plane *plane;
 759         struct weston_view *parent_view;
 760
 761         pixman_region32_t clip;
 762         float alpha;                     /* part of geometry, see below */
 763
 764         void *renderer_state;
 765
 766         /* Surface geometry state, mutable.
 767          * If you change anything, call weston_surface_geometry_dirty().
 768          * That includes the transformations referenced from the list.
 769          */
 770         struct {
 771                 float x, y; /* surface translation on display */
 772
 773                 /* struct weston_transform */
 774                 struct wl_list transformation_list;
 775
 776                 /* managed by weston_surface_set_transform_parent() */
 777                 struct weston_view *parent;
 778                 struct wl_listener parent_destroy_listener;
 779                 struct wl_list child_list; /* geometry.parent_link */
 780                 struct wl_list parent_link;
 781         } geometry;
 782
 783         /* State derived from geometry state, read-only.
 784          * This is updated by weston_view_update_transform().
 785          */
 786         struct {
 787                 int dirty;
 788
 789                 pixman_region32_t boundingbox;
 790                 pixman_region32_t opaque;
 791                 pixman_region32_t masked_boundingbox;
 792                 pixman_region32_t masked_opaque;
 793
 794                 /* matrix and inverse are used only if enabled = 1.
 795                  * If enabled = 0, use x, y, width, height directly.
 796                  */
 797                 int enabled;
 798                 struct weston_matrix matrix;
 799                 struct weston_matrix inverse;
 800
 801                 struct weston_transform position; /* matrix from x, y */
 802         } transform;
 803
 804         /*
 805          * Which output to vsync this surface to.
 806          * Used to determine, whether to send or queue frame events.
 807          * Must be NULL, if 'link' is not in weston_compositor::surface_list.
 808          */
 809         struct weston_output *output;
 810
 811         /*
 812          * A more complete representation of all outputs this surface is
 813          * displayed on.
 814          */
 815         uint32_t output_mask;
 816 };
 817
 818 struct weston_surface_state {
 819         /* wl_surface.attach */
 820         int newly_attached;
 821         struct weston_buffer *buffer;
 822         struct wl_listener buffer_destroy_listener;
 823         int32_t sx;
 824         int32_t sy;
 825
 826         /* wl_surface.damage */
 827         pixman_region32_t damage;
 828
 829         /* wl_surface.set_opaque_region */
 830         pixman_region32_t opaque;
 831
 832         /* wl_surface.set_input_region */
 833         pixman_region32_t input;
 834
 835         /* wl_surface.frame */
 836         struct wl_list frame_callback_list;
 837
 838         /* wl_surface.set_buffer_transform */
 839         /* wl_surface.set_scaling_factor */
 840         /* wl_viewport.set */
 841         struct weston_buffer_viewport buffer_viewport;
 842 };
 843
 844 struct weston_surface {
 845         struct wl_resource *resource;
 846         struct wl_signal destroy_signal;
 847         struct weston_compositor *compositor;
 848         pixman_region32_t damage;
 849         pixman_region32_t opaque;        /* part of geometry, see below */
 850         pixman_region32_t input;
 851         int32_t width, height;
 852         int32_t ref_count;
 853
 854         /* Not for long-term storage.  This exists for book-keeping while
 855          * iterating over surfaces and views
 856          */
 857         int32_t touched;
 858
 859         void *renderer_state;
 860
 861         struct wl_list views;
 862
 863         /*
 864          * Which output to vsync this surface to.
 865          * Used to determine, whether to send or queue frame events.
 866          * Must be NULL, if 'link' is not in weston_compositor::surface_list.
 867          */
 868         struct weston_output *output;
 869
 870         /*
 871          * A more complete representation of all outputs this surface is
 872          * displayed on.
 873          */
 874         uint32_t output_mask;
 875
 876         struct wl_list frame_callback_list;
 877
 878         struct weston_buffer_reference buffer_ref;
 879         struct weston_buffer_viewport buffer_viewport;
 880         int32_t width_from_buffer; /* before applying viewport */
 881         int32_t height_from_buffer;
 882         int keep_buffer; /* bool for backends to prevent early release */
 883
 884         /* wl_viewport resource for this surface */
 885         struct wl_resource *viewport_resource;
 886
 887         /* All the pending state, that wl_surface.commit will apply. */
 888         struct weston_surface_state pending;
 889
 890         /*
 891          * If non-NULL, this function will be called on
 892          * wl_surface::commit after a new buffer has been set up for
 893          * this surface. The integer params are the sx and sy
 894          * parameters supplied to wl_surface::attach.
 895          */
 896         void (*configure)(struct weston_surface *es, int32_t sx, int32_t sy);
 897         void *configure_private;
 898
 899         /* Parent's list of its sub-surfaces, weston_subsurface:parent_link.
 900          * Contains also the parent itself as a dummy weston_subsurface,
 901          * if the list is not empty.
 902          */
 903         struct wl_list subsurface_list; /* weston_subsurface::parent_link */
 904         struct wl_list subsurface_list_pending; /* ...::parent_link_pending */
 905 };
 906
 907 struct weston_subsurface {
 908         struct wl_resource *resource;
 909
 910         /* guaranteed to be valid and non-NULL */
 911         struct weston_surface *surface;
 912         struct wl_listener surface_destroy_listener;
 913
 914         /* can be NULL */
 915         struct weston_surface *parent;
 916         struct wl_listener parent_destroy_listener;
 917         struct wl_list parent_link;
 918         struct wl_list parent_link_pending;
 919
 920         struct {
 921                 int32_t x;
 922                 int32_t y;
 923                 int set;
 924         } position;
 925
 926         int has_cached_data;
 927         struct weston_surface_state cached;
 928         struct weston_buffer_reference cached_buffer_ref;
 929
 930         int synchronized;
 931
 932         /* Used for constructing the view tree */
 933         struct wl_list unused_views;
 934 };
 935
 936 enum weston_key_state_update {
 937         STATE_UPDATE_AUTOMATIC,
 938         STATE_UPDATE_NONE,
 939 };
 940
 941 void
 942 weston_version(int *major, int *minor, int *micro);
 943
 944 void
 945 weston_view_update_transform(struct weston_view *view);
 946
 947 void
 948 weston_view_geometry_dirty(struct weston_view *view);
 949
 950 void
 951 weston_view_to_global_fixed(struct weston_view *view,
 952                             wl_fixed_t sx, wl_fixed_t sy,
 953                             wl_fixed_t *x, wl_fixed_t *y);
 954 void
 955 weston_view_to_global_float(struct weston_view *view,
 956                             float sx, float sy, float *x, float *y);
 957
 958 void
 959 weston_view_from_global_float(struct weston_view *view,
 960                               float x, float y, float *vx, float *vy);
 961 void
 962 weston_view_from_global(struct weston_view *view,
 963                         int32_t x, int32_t y, int32_t *vx, int32_t *vy);
 964 void
 965 weston_view_from_global_fixed(struct weston_view *view,
 966                               wl_fixed_t x, wl_fixed_t y,
 967                               wl_fixed_t *vx, wl_fixed_t *vy);
 968
 969 WL_EXPORT void
 970 weston_surface_to_buffer_float(struct weston_surface *surface,
 971                                float x, float y, float *bx, float *by);
 972 WL_EXPORT void
 973 weston_surface_to_buffer(struct weston_surface *surface,
 974                          int sx, int sy, int *bx, int *by);
 975 pixman_box32_t
 976 weston_surface_to_buffer_rect(struct weston_surface *surface,
 977                               pixman_box32_t rect);
 978
 979 void
 980 weston_spring_init(struct weston_spring *spring,
 981                    double k, double current, double target);
 982 void
 983 weston_spring_update(struct weston_spring *spring, uint32_t msec);
 984 int
 985 weston_spring_done(struct weston_spring *spring);
 986
 987 void
 988 weston_surface_activate(struct weston_surface *surface,
 989                         struct weston_seat *seat);
 990 void
 991 notify_motion(struct weston_seat *seat, uint32_t time,
 992               wl_fixed_t dx, wl_fixed_t dy);
 993 void
 994 notify_motion_absolute(struct weston_seat *seat, uint32_t time,
 995                        wl_fixed_t x, wl_fixed_t y);
 996 void
 997 notify_button(struct weston_seat *seat, uint32_t time, int32_t button,
 998               enum wl_pointer_button_state state);
 999 void
1000 notify_axis(struct weston_seat *seat, uint32_t time, uint32_t axis,
1001             wl_fixed_t value);
1002 void
1003 notify_key(struct weston_seat *seat, uint32_t time, uint32_t key,
1004            enum wl_keyboard_key_state state,
1005            enum weston_key_state_update update_state);
1006 void
1007 notify_modifiers(struct weston_seat *seat, uint32_t serial);
1008
1009 void
1010 notify_pointer_focus(struct weston_seat *seat, struct weston_output *output,
1011                      wl_fixed_t x, wl_fixed_t y);
1012
1013 void
1014 notify_keyboard_focus_in(struct weston_seat *seat, struct wl_array *keys,
1015                          enum weston_key_state_update update_state);
1016 void
1017 notify_keyboard_focus_out(struct weston_seat *seat);
1018
1019 void
1020 notify_touch(struct weston_seat *seat, uint32_t time, int touch_id,
1021              wl_fixed_t x, wl_fixed_t y, int touch_type);
1022 void
1023 notify_touch_frame(struct weston_seat *seat);
1024
1025 void
1026 weston_layer_entry_insert(struct weston_layer_entry *list,
1027                           struct weston_layer_entry *entry);
1028 void
1029 weston_layer_entry_remove(struct weston_layer_entry *entry);
1030 void
1031 weston_layer_init(struct weston_layer *layer, struct wl_list *below);
1032
1033 void
1034 weston_layer_set_mask(struct weston_layer *layer, int x, int y, int width, int height);
1035
1036 void
1037 weston_layer_set_mask_infinite(struct weston_layer *layer);
1038
1039 void
1040 weston_plane_init(struct weston_plane *plane,
1041                         struct weston_compositor *ec,
1042                         int32_t x, int32_t y);
1043 void
1044 weston_plane_release(struct weston_plane *plane);
1045
1046 void
1047 weston_compositor_stack_plane(struct weston_compositor *ec,
1048                               struct weston_plane *plane,
1049                               struct weston_plane *above);
1050
1051 void
1052 weston_output_finish_frame(struct weston_output *output, uint32_t msecs);
1053 void
1054 weston_output_schedule_repaint(struct weston_output *output);
1055 void
1056 weston_output_damage(struct weston_output *output);
1057 void
1058 weston_compositor_schedule_repaint(struct weston_compositor *compositor);
1059 void
1060 weston_compositor_fade(struct weston_compositor *compositor, float tint);
1061 void
1062 weston_compositor_damage_all(struct weston_compositor *compositor);
1063 void
1064 weston_compositor_unlock(struct weston_compositor *compositor);
1065 void
1066 weston_compositor_wake(struct weston_compositor *compositor);
1067 void
1068 weston_compositor_offscreen(struct weston_compositor *compositor);
1069 void
1070 weston_compositor_sleep(struct weston_compositor *compositor);
1071 struct weston_view *
1072 weston_compositor_pick_view(struct weston_compositor *compositor,
1073                             wl_fixed_t x, wl_fixed_t y,
1074                             wl_fixed_t *sx, wl_fixed_t *sy);
1075
1076
1077 struct weston_binding;
1078 typedef void (*weston_key_binding_handler_t)(struct weston_seat *seat,
1079                                              uint32_t time, uint32_t key,
1080                                              void *data);
1081 struct weston_binding *
1082 weston_compositor_add_key_binding(struct weston_compositor *compositor,
1083                                   uint32_t key,
1084                                   enum weston_keyboard_modifier modifier,
1085                                   weston_key_binding_handler_t binding,
1086                                   void *data);
1087
1088 typedef void (*weston_modifier_binding_handler_t)(struct weston_seat *seat,
1089                                                   enum weston_keyboard_modifier modifier,
1090                                                   void *data);
1091 struct weston_binding *
1092 weston_compositor_add_modifier_binding(struct weston_compositor *compositor,
1093                                        enum weston_keyboard_modifier modifier,
1094                                        weston_modifier_binding_handler_t binding,
1095                                        void *data);
1096
1097 typedef void (*weston_button_binding_handler_t)(struct weston_seat *seat,
1098                                                 uint32_t time, uint32_t button,
1099                                                 void *data);
1100 struct weston_binding *
1101 weston_compositor_add_button_binding(struct weston_compositor *compositor,
1102                                      uint32_t button,
1103                                      enum weston_keyboard_modifier modifier,
1104                                      weston_button_binding_handler_t binding,
1105                                      void *data);
1106
1107 typedef void (*weston_touch_binding_handler_t)(struct weston_seat *seat,
1108                                                uint32_t time,
1109                                                void *data);
1110 struct weston_binding *
1111 weston_compositor_add_touch_binding(struct weston_compositor *compositor,
1112                                     enum weston_keyboard_modifier modifier,
1113                                     weston_touch_binding_handler_t binding,
1114                                     void *data);
1115
1116 typedef void (*weston_axis_binding_handler_t)(struct weston_seat *seat,
1117                                               uint32_t time, uint32_t axis,
1118                                               wl_fixed_t value, void *data);
1119 struct weston_binding *
1120 weston_compositor_add_axis_binding(struct weston_compositor *compositor,
1121                                    uint32_t axis,
1122                                    enum weston_keyboard_modifier modifier,
1123                                    weston_axis_binding_handler_t binding,
1124                                    void *data);
1125 struct weston_binding *
1126 weston_compositor_add_debug_binding(struct weston_compositor *compositor,
1127                                     uint32_t key,
1128                                     weston_key_binding_handler_t binding,
1129                                     void *data);
1130 void
1131 weston_binding_destroy(struct weston_binding *binding);
1132
1133 void
1134 weston_binding_list_destroy_all(struct wl_list *list);
1135
1136 void
1137 weston_compositor_run_key_binding(struct weston_compositor *compositor,
1138                                   struct weston_seat *seat, uint32_t time,
1139                                   uint32_t key,
1140                                   enum wl_keyboard_key_state state);
1141
1142 void
1143 weston_compositor_run_modifier_binding(struct weston_compositor *compositor,
1144                                        struct weston_seat *seat,
1145                                        enum weston_keyboard_modifier modifier,
1146                                        enum wl_keyboard_key_state state);
1147 void
1148 weston_compositor_run_button_binding(struct weston_compositor *compositor,
1149                                      struct weston_seat *seat, uint32_t time,
1150                                      uint32_t button,
1151                                      enum wl_pointer_button_state value);
1152 void
1153 weston_compositor_run_touch_binding(struct weston_compositor *compositor,
1154                                     struct weston_seat *seat, uint32_t time,
1155                                     int touch_type);
1156 int
1157 weston_compositor_run_axis_binding(struct weston_compositor *compositor,
1158                                    struct weston_seat *seat, uint32_t time,
1159                                    uint32_t axis, int32_t value);
1160 int
1161 weston_compositor_run_debug_binding(struct weston_compositor *compositor,
1162                                     struct weston_seat *seat, uint32_t time,
1163                                     uint32_t key,
1164                                     enum wl_keyboard_key_state state);
1165
1166 void
1167 weston_compositor_set_default_pointer_grab(struct weston_compositor *compositor,
1168                         const struct weston_pointer_grab_interface *interface);
1169
1170 int
1171 weston_environment_get_fd(const char *env);
1172
1173 struct wl_list *
1174 weston_compositor_top(struct weston_compositor *compositor);
1175
1176 struct weston_surface *
1177 weston_surface_create(struct weston_compositor *compositor);
1178
1179 struct weston_view *
1180 weston_view_create(struct weston_surface *surface);
1181
1182 void
1183 weston_view_destroy(struct weston_view *view);
1184
1185 void
1186 weston_view_set_position(struct weston_view *view,
1187                          float x, float y);
1188
1189 void
1190 weston_view_set_transform_parent(struct weston_view *view,
1191                                  struct weston_view *parent);
1192
1193 int
1194 weston_view_is_mapped(struct weston_view *view);
1195
1196 void
1197 weston_view_schedule_repaint(struct weston_view *view);
1198
1199 int
1200 weston_surface_is_mapped(struct weston_surface *surface);
1201
1202 WL_EXPORT void
1203 weston_surface_set_size(struct weston_surface *surface,
1204                         int32_t width, int32_t height);
1205
1206 void
1207 weston_surface_schedule_repaint(struct weston_surface *surface);
1208
1209 void
1210 weston_surface_damage(struct weston_surface *surface);
1211
1212 void
1213 weston_view_damage_below(struct weston_view *view);
1214
1215 void
1216 weston_view_move_to_plane(struct weston_view *view,
1217                           struct weston_plane *plane);
1218 void
1219 weston_view_unmap(struct weston_view *view);
1220
1221 void
1222 weston_surface_unmap(struct weston_surface *surface);
1223
1224 struct weston_surface *
1225 weston_surface_get_main_surface(struct weston_surface *surface);
1226
1227 struct weston_buffer *
1228 weston_buffer_from_resource(struct wl_resource *resource);
1229
1230 void
1231 weston_buffer_reference(struct weston_buffer_reference *ref,
1232                         struct weston_buffer *buffer);
1233
1234 uint32_t
1235 weston_compositor_get_time(void);
1236
1237 int
1238 weston_compositor_init(struct weston_compositor *ec, struct wl_display *display,
1239                        int *argc, char *argv[], struct weston_config *config);
1240 void
1241 weston_compositor_shutdown(struct weston_compositor *ec);
1242 void
1243 weston_output_init_zoom(struct weston_output *output);
1244 void
1245 weston_output_update_zoom(struct weston_output *output);
1246 void
1247 weston_output_activate_zoom(struct weston_output *output);
1248 void
1249 weston_output_update_matrix(struct weston_output *output);
1250 void
1251 weston_output_move(struct weston_output *output, int x, int y);
1252 void
1253 weston_output_init(struct weston_output *output, struct weston_compositor *c,
1254                    int x, int y, int width, int height, uint32_t transform, int32_t scale);
1255 void
1256 weston_output_destroy(struct weston_output *output);
1257 void
1258 weston_output_transform_coordinate(struct weston_output *output,
1259                                    wl_fixed_t device_x, wl_fixed_t device_y,
1260                                    wl_fixed_t *x, wl_fixed_t *y);
1261
1262 void
1263 weston_seat_init(struct weston_seat *seat, struct weston_compositor *ec,
1264                  const char *seat_name);
1265 void
1266 weston_seat_init_pointer(struct weston_seat *seat);
1267 void
1268 weston_seat_release_pointer(struct weston_seat *seat);
1269 int
1270 weston_seat_init_keyboard(struct weston_seat *seat, struct xkb_keymap *keymap);
1271 void
1272 weston_seat_release_keyboard(struct weston_seat *seat);
1273 void
1274 weston_seat_init_touch(struct weston_seat *seat);
1275 void
1276 weston_seat_release_touch(struct weston_seat *seat);
1277 void
1278 weston_seat_repick(struct weston_seat *seat);
1279 void
1280 weston_seat_update_keymap(struct weston_seat *seat, struct xkb_keymap *keymap);
1281
1282 void
1283 weston_seat_release(struct weston_seat *seat);
1284 int
1285 weston_compositor_xkb_init(struct weston_compositor *ec,
1286                            struct xkb_rule_names *names);
1287 void
1288 weston_compositor_xkb_destroy(struct weston_compositor *ec);
1289
1290 /* String literal of spaces, the same width as the timestamp. */
1291 #define STAMP_SPACE "               "
1292
1293 void
1294 weston_log_file_open(const char *filename);
1295 void
1296 weston_log_file_close(void);
1297 int
1298 weston_vlog(const char *fmt, va_list ap);
1299 int
1300 weston_vlog_continue(const char *fmt, va_list ap);
1301 int
1302 weston_log(const char *fmt, ...)
1303         __attribute__ ((format (printf, 1, 2)));
1304 int
1305 weston_log_continue(const char *fmt, ...)
1306         __attribute__ ((format (printf, 1, 2)));
1307
1308 enum {
1309         TTY_ENTER_VT,
1310         TTY_LEAVE_VT
1311 };
1312
1313 struct tty *
1314 tty_create(struct weston_compositor *compositor, int tty_nr);
1315
1316 void
1317 tty_destroy(struct tty *tty);
1318
1319 void
1320 tty_reset(struct tty *tty);
1321
1322 int
1323 tty_activate_vt(struct tty *tty, int vt);
1324
1325 void
1326 screenshooter_create(struct weston_compositor *ec);
1327
1328 enum weston_screenshooter_outcome {
1329         WESTON_SCREENSHOOTER_SUCCESS,
1330         WESTON_SCREENSHOOTER_NO_MEMORY,
1331         WESTON_SCREENSHOOTER_BAD_BUFFER
1332 };
1333
1334 typedef void (*weston_screenshooter_done_func_t)(void *data,
1335                                 enum weston_screenshooter_outcome outcome);
1336 int
1337 weston_screenshooter_shoot(struct weston_output *output, struct weston_buffer *buffer,
1338                            weston_screenshooter_done_func_t done, void *data);
1339
1340 struct clipboard *
1341 clipboard_create(struct weston_seat *seat);
1342
1343 int
1344 text_backend_init(struct weston_compositor *ec);
1345
1346 struct weston_process;
1347 typedef void (*weston_process_cleanup_func_t)(struct weston_process *process,
1348                                             int status);
1349
1350 struct weston_process {
1351         pid_t pid;
1352         weston_process_cleanup_func_t cleanup;
1353         struct wl_list link;
1354 };
1355
1356 struct wl_client *
1357 weston_client_launch(struct weston_compositor *compositor,
1358                      struct weston_process *proc,
1359                      const char *path,
1360                      weston_process_cleanup_func_t cleanup);
1361
1362 struct wl_client *
1363 weston_client_start(struct weston_compositor *compositor, const char *path);
1364
1365 void
1366 weston_watch_process(struct weston_process *process);
1367
1368 struct weston_view_animation;
1369 typedef void (*weston_view_animation_done_func_t)(struct weston_view_animation *animation, void *data);
1370
1371 void
1372 weston_view_animation_destroy(struct weston_view_animation *animation);
1373
1374 struct weston_view_animation *
1375 weston_zoom_run(struct weston_view *view, float start, float stop,
1376                 weston_view_animation_done_func_t done, void *data);
1377
1378 struct weston_view_animation *
1379 weston_fade_run(struct weston_view *view,
1380                 float start, float end, float k,
1381                 weston_view_animation_done_func_t done, void *data);
1382
1383 struct weston_view_animation *
1384 weston_move_scale_run(struct weston_view *view, int dx, int dy,
1385                       float start, float end, int reverse,
1386                       weston_view_animation_done_func_t done, void *data);
1387
1388 void
1389 weston_fade_update(struct weston_view_animation *fade, float target);
1390
1391 struct weston_view_animation *
1392 weston_stable_fade_run(struct weston_view *front_view, float start,
1393                        struct weston_view *back_view, float end,
1394                        weston_view_animation_done_func_t done, void *data);
1395
1396 struct weston_view_animation *
1397 weston_slide_run(struct weston_view *view, float start, float stop,
1398                  weston_view_animation_done_func_t done, void *data);
1399
1400 void
1401 weston_surface_set_color(struct weston_surface *surface,
1402                          float red, float green, float blue, float alpha);
1403
1404 void
1405 weston_surface_destroy(struct weston_surface *surface);
1406
1407 int
1408 weston_output_switch_mode(struct weston_output *output, struct weston_mode *mode,
1409                         int32_t scale, enum weston_mode_switch_op op);
1410
1411 int
1412 noop_renderer_init(struct weston_compositor *ec);
1413
1414 struct weston_compositor *
1415 backend_init(struct wl_display *display, int *argc, char *argv[],
1416              struct weston_config *config);
1417
1418 int
1419 module_init(struct weston_compositor *compositor,
1420             int *argc, char *argv[]);
1421
1422 void
1423 weston_transformed_coord(int width, int height,
1424                          enum wl_output_transform transform,
1425                          int32_t scale,
1426                          float sx, float sy, float *bx, float *by);
1427 pixman_box32_t
1428 weston_transformed_rect(int width, int height,
1429                         enum wl_output_transform transform,
1430                         int32_t scale,
1431                         pixman_box32_t rect);
1432 void
1433 weston_transformed_region(int width, int height,
1434                           enum wl_output_transform transform,
1435                           int32_t scale,
1436                           pixman_region32_t *src, pixman_region32_t *dest);
1437
1438 void *
1439 weston_load_module(const char *name, const char *entrypoint);
1440
1441 #ifdef  __cplusplus
1442 }
1443 #endif
1444
1445 #endif