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         struct {
 186                 char *seatname;
 187                 struct weston_seat *seat;
 188         } seat_data;
 189
 190         void *renderer_state;
 191
 192         struct wl_list link;
 193         struct wl_list resource_list;
 194         struct wl_global *global;
 195         struct weston_compositor *compositor;
 196         struct weston_matrix matrix;
 197         struct wl_list animation_list;
 198         int32_t x, y, width, height;
 199         int32_t mm_width, mm_height;
 200         pixman_region32_t region;
 201         pixman_region32_t previous_damage;
 202         int repaint_needed;
 203         int repaint_scheduled;
 204         struct weston_output_zoom zoom;
 205         int dirty;
 206         struct wl_signal frame_signal;
 207         struct wl_signal destroy_signal;
 208         int move_x, move_y;
 209         uint32_t frame_time;
 210         int disable_planes;
 211         uint32_t default_output;
 212         int destroying;
 213
 214         char *make, *model, *serial_number;
 215         uint32_t subpixel;
 216         uint32_t transform;
 217         int32_t native_scale;
 218         int32_t current_scale;
 219         int32_t original_scale;
 220
 221         struct weston_mode *native_mode;
 222         struct weston_mode *current_mode;
 223         struct weston_mode *original_mode;
 224         struct wl_list mode_list;
 225
 226         void (*start_repaint_loop)(struct weston_output *output);
 227         int (*repaint)(struct weston_output *output,
 228                         pixman_region32_t *damage);
 229         void (*destroy)(struct weston_output *output);
 230         void (*assign_planes)(struct weston_output *output);
 231         int (*switch_mode)(struct weston_output *output, struct weston_mode *mode);
 232
 233         /* backlight values are on 0-255 range, where higher is brighter */
 234         int32_t backlight_current;
 235         void (*set_backlight)(struct weston_output *output, uint32_t value);
 236         void (*set_dpms)(struct weston_output *output, enum dpms_enum level);
 237
 238         int connection_internal;
 239         uint16_t gamma_size;
 240         void (*set_gamma)(struct weston_output *output,
 241                           uint16_t size,
 242                           uint16_t *r,
 243                           uint16_t *g,
 244                           uint16_t *b);
 245 };
 246
 247 struct weston_pointer_grab;
 248 struct weston_pointer_grab_interface {
 249         void (*focus)(struct weston_pointer_grab *grab);
 250         void (*motion)(struct weston_pointer_grab *grab, uint32_t time,
 251                        wl_fixed_t x, wl_fixed_t y);
 252         void (*button)(struct weston_pointer_grab *grab,
 253                        uint32_t time, uint32_t button, uint32_t state);
 254         void (*cancel)(struct weston_pointer_grab *grab);
 255 };
 256
 257 struct weston_pointer_grab {
 258         const struct weston_pointer_grab_interface *interface;
 259         struct weston_pointer *pointer;
 260 };
 261
 262 struct weston_keyboard_grab;
 263 struct weston_keyboard_grab_interface {
 264         void (*key)(struct weston_keyboard_grab *grab, uint32_t time,
 265                     uint32_t key, uint32_t state);
 266         void (*modifiers)(struct weston_keyboard_grab *grab, uint32_t serial,
 267                           uint32_t mods_depressed, uint32_t mods_latched,
 268                           uint32_t mods_locked, uint32_t group);
 269         void (*cancel)(struct weston_keyboard_grab *grab);
 270 };
 271
 272 struct weston_keyboard_grab {
 273         const struct weston_keyboard_grab_interface *interface;
 274         struct weston_keyboard *keyboard;
 275 };
 276
 277 struct weston_touch_grab;
 278 struct weston_touch_grab_interface {
 279         void (*down)(struct weston_touch_grab *grab,
 280                         uint32_t time,
 281                         int touch_id,
 282                         wl_fixed_t sx,
 283                         wl_fixed_t sy);
 284         void (*up)(struct weston_touch_grab *grab,
 285                         uint32_t time,
 286                         int touch_id);
 287         void (*motion)(struct weston_touch_grab *grab,
 288                         uint32_t time,
 289                         int touch_id,
 290                         wl_fixed_t sx,
 291                         wl_fixed_t sy);
 292         void (*frame)(struct weston_touch_grab *grab);
 293         void (*cancel)(struct weston_touch_grab *grab);
 294 };
 295
 296 struct weston_touch_grab {
 297         const struct weston_touch_grab_interface *interface;
 298         struct weston_touch *touch;
 299 };
 300
 301 struct weston_data_offer {
 302         struct wl_resource *resource;
 303         struct weston_data_source *source;
 304         struct wl_listener source_destroy_listener;
 305 };
 306
 307 struct weston_data_source {
 308         struct wl_resource *resource;
 309         struct wl_signal destroy_signal;
 310         struct wl_array mime_types;
 311
 312         void (*accept)(struct weston_data_source *source,
 313                        uint32_t serial, const char *mime_type);
 314         void (*send)(struct weston_data_source *source,
 315                      const char *mime_type, int32_t fd);
 316         void (*cancel)(struct weston_data_source *source);
 317 };
 318
 319 struct weston_pointer {
 320         struct weston_seat *seat;
 321
 322         struct wl_list resource_list;
 323         struct wl_list focus_resource_list;
 324         struct weston_view *focus;
 325         uint32_t focus_serial;
 326         struct wl_listener focus_view_listener;
 327         struct wl_listener focus_resource_listener;
 328         struct wl_signal focus_signal;
 329         struct wl_signal motion_signal;
 330
 331         struct weston_view *sprite;
 332         struct wl_listener sprite_destroy_listener;
 333         int32_t hotspot_x, hotspot_y;
 334
 335         struct weston_pointer_grab *grab;
 336         struct weston_pointer_grab default_grab;
 337         wl_fixed_t grab_x, grab_y;
 338         uint32_t grab_button;
 339         uint32_t grab_serial;
 340         uint32_t grab_time;
 341
 342         wl_fixed_t x, y;
 343         wl_fixed_t sx, sy;
 344         uint32_t button_count;
 345
 346         struct wl_listener output_destroy_listener;
 347 };
 348
 349
 350 struct weston_touch {
 351         struct weston_seat *seat;
 352
 353         struct wl_list resource_list;
 354         struct wl_list focus_resource_list;
 355         struct weston_view *focus;
 356         struct wl_listener focus_view_listener;
 357         struct wl_listener focus_resource_listener;
 358         uint32_t focus_serial;
 359         struct wl_signal focus_signal;
 360
 361         uint32_t num_tp;
 362
 363         struct weston_touch_grab *grab;
 364         struct weston_touch_grab default_grab;
 365         int grab_touch_id;
 366         wl_fixed_t grab_x, grab_y;
 367         uint32_t grab_serial;
 368         uint32_t grab_time;
 369 };
 370
 371 struct weston_pointer *
 372 weston_pointer_create(struct weston_seat *seat);
 373 void
 374 weston_pointer_destroy(struct weston_pointer *pointer);
 375 void
 376 weston_pointer_set_focus(struct weston_pointer *pointer,
 377                          struct weston_view *view,
 378                          wl_fixed_t sx, wl_fixed_t sy);
 379 void
 380 weston_pointer_start_grab(struct weston_pointer *pointer,
 381                           struct weston_pointer_grab *grab);
 382 void
 383 weston_pointer_end_grab(struct weston_pointer *pointer);
 384 void
 385 weston_pointer_clamp(struct weston_pointer *pointer,
 386                             wl_fixed_t *fx, wl_fixed_t *fy);
 387 void
 388 weston_pointer_move(struct weston_pointer *pointer,
 389                     wl_fixed_t x, wl_fixed_t y);
 390 void
 391 weston_pointer_set_default_grab(struct weston_pointer *pointer,
 392                 const struct weston_pointer_grab_interface *interface);
 393
 394 struct weston_keyboard *
 395 weston_keyboard_create(void);
 396 void
 397 weston_keyboard_destroy(struct weston_keyboard *keyboard);
 398 void
 399 weston_keyboard_set_focus(struct weston_keyboard *keyboard,
 400                           struct weston_surface *surface);
 401 void
 402 weston_keyboard_start_grab(struct weston_keyboard *device,
 403                            struct weston_keyboard_grab *grab);
 404 void
 405 weston_keyboard_end_grab(struct weston_keyboard *keyboard);
 406 int
 407 /*
 408  * 'mask' and 'value' should be a bitwise mask of one or more
 409  * valued of the weston_keyboard_locks enum.
 410  */
 411 weston_keyboard_set_locks(struct weston_keyboard *keyboard,
 412                           uint32_t mask, uint32_t value);
 413
 414 struct weston_touch *
 415 weston_touch_create(void);
 416 void
 417 weston_touch_destroy(struct weston_touch *touch);
 418 void
 419 weston_touch_set_focus(struct weston_seat *seat,
 420                        struct weston_view *view);
 421 void
 422 weston_touch_start_grab(struct weston_touch *device,
 423                         struct weston_touch_grab *grab);
 424 void
 425 weston_touch_end_grab(struct weston_touch *touch);
 426
 427 void
 428 wl_data_device_set_keyboard_focus(struct weston_seat *seat);
 429
 430 int
 431 wl_data_device_manager_init(struct wl_display *display);
 432
 433
 434 void
 435 weston_seat_set_selection(struct weston_seat *seat,
 436                           struct weston_data_source *source, uint32_t serial);
 437 int
 438 weston_pointer_start_drag(struct weston_pointer *pointer,
 439                        struct weston_data_source *source,
 440                        struct weston_surface *icon,
 441                        struct wl_client *client);
 442 int
 443 weston_touch_start_drag(struct weston_touch *touch,
 444                         struct weston_data_source *source,
 445                         struct weston_surface *icon,
 446                         struct wl_client *client);
 447
 448 struct weston_xkb_info {
 449         struct xkb_keymap *keymap;
 450         int keymap_fd;
 451         size_t keymap_size;
 452         char *keymap_area;
 453         int32_t ref_count;
 454         xkb_mod_index_t shift_mod;
 455         xkb_mod_index_t caps_mod;
 456         xkb_mod_index_t ctrl_mod;
 457         xkb_mod_index_t alt_mod;
 458         xkb_mod_index_t mod2_mod;
 459         xkb_mod_index_t mod3_mod;
 460         xkb_mod_index_t super_mod;
 461         xkb_mod_index_t mod5_mod;
 462         xkb_led_index_t num_led;
 463         xkb_led_index_t caps_led;
 464         xkb_led_index_t scroll_led;
 465 };
 466
 467 struct weston_keyboard {
 468         struct weston_seat *seat;
 469
 470         struct wl_list resource_list;
 471         struct wl_list focus_resource_list;
 472         struct weston_surface *focus;
 473         struct wl_listener focus_resource_listener;
 474         uint32_t focus_serial;
 475         struct wl_signal focus_signal;
 476
 477         struct weston_keyboard_grab *grab;
 478         struct weston_keyboard_grab default_grab;
 479         uint32_t grab_key;
 480         uint32_t grab_serial;
 481         uint32_t grab_time;
 482
 483         struct wl_array keys;
 484
 485         struct {
 486                 uint32_t mods_depressed;
 487                 uint32_t mods_latched;
 488                 uint32_t mods_locked;
 489                 uint32_t group;
 490         } modifiers;
 491
 492         struct weston_keyboard_grab input_method_grab;
 493         struct wl_resource *input_method_resource;
 494
 495         struct weston_xkb_info *xkb_info;
 496         struct {
 497                 struct xkb_state *state;
 498                 enum weston_led leds;
 499         } xkb_state;
 500         struct xkb_keymap *pending_keymap;
 501 };
 502
 503 struct weston_seat {
 504         struct wl_list base_resource_list;
 505
 506         struct wl_global *global;
 507         struct weston_pointer *pointer;
 508         struct weston_keyboard *keyboard;
 509         struct weston_touch *touch;
 510         int pointer_device_count;
 511         int keyboard_device_count;
 512         int touch_device_count;
 513
 514         struct wl_signal destroy_signal;
 515         struct wl_signal updated_caps_signal;
 516
 517         struct weston_compositor *compositor;
 518         struct wl_list link;
 519         enum weston_keyboard_modifier modifier_state;
 520         struct weston_surface *saved_kbd_focus;
 521         struct wl_listener saved_kbd_focus_listener;
 522         struct wl_list drag_resource_list;
 523
 524         uint32_t selection_serial;
 525         struct weston_data_source *selection_data_source;
 526         struct wl_listener selection_data_source_listener;
 527         struct wl_signal selection_signal;
 528
 529         void (*led_update)(struct weston_seat *ws, enum weston_led leds);
 530
 531         uint32_t slot_map;
 532         struct input_method *input_method;
 533         char *seat_name;
 534 };
 535
 536 enum {
 537         WESTON_COMPOSITOR_ACTIVE,
 538         WESTON_COMPOSITOR_IDLE,         /* shell->unlock called on activity */
 539         WESTON_COMPOSITOR_OFFSCREEN,    /* no rendering, no frame events */
 540         WESTON_COMPOSITOR_SLEEPING      /* same as offscreen, but also set dmps
 541                                          * to off */
 542 };
 543
 544 struct weston_layer_entry {
 545         struct wl_list link;
 546         struct weston_layer *layer;
 547 };
 548
 549 struct weston_layer {
 550         struct weston_layer_entry view_list;
 551         struct wl_list link;
 552         pixman_box32_t mask;
 553 };
 554
 555 struct weston_plane {
 556         struct weston_compositor *compositor;
 557         pixman_region32_t damage;
 558         pixman_region32_t clip;
 559         int32_t x, y;
 560         struct wl_list link;
 561 };
 562
 563 struct weston_renderer {
 564         int (*read_pixels)(struct weston_output *output,
 565                                pixman_format_code_t format, void *pixels,
 566                                uint32_t x, uint32_t y,
 567                                uint32_t width, uint32_t height);
 568         int (*read_surface_pixels)(struct weston_surface *es,
 569                                    pixman_format_code_t format, void *pixels,
 570                                    int x, int y, int width, int height);
 571         void (*repaint_output)(struct weston_output *output,
 572                                pixman_region32_t *output_damage);
 573         void (*flush_damage)(struct weston_surface *surface);
 574         void (*attach)(struct weston_surface *es, struct weston_buffer *buffer);
 575         void (*surface_set_color)(struct weston_surface *surface,
 576                                float red, float green,
 577                                float blue, float alpha);
 578         void (*destroy)(struct weston_compositor *ec);
 579 };
 580
 581 enum weston_capability {
 582         /* backend/renderer supports arbitrary rotation */
 583         WESTON_CAP_ROTATION_ANY                 = 0x0001,
 584
 585         /* screencaptures need to be y-flipped */
 586         WESTON_CAP_CAPTURE_YFLIP                = 0x0002,
 587
 588         /* backend/renderer has a seperate cursor plane */
 589         WESTON_CAP_CURSOR_PLANE                 = 0x0004,
 590
 591         /* backend supports setting arbitrary resolutions */
 592         WESTON_CAP_ARBITRARY_MODES              = 0x0008,
 593 };
 594
 595 struct weston_compositor {
 596         struct wl_signal destroy_signal;
 597
 598         struct wl_display *wl_display;
 599         struct weston_shell_interface shell_interface;
 600         struct weston_config *config;
 601
 602         /* surface signals */
 603         struct wl_signal create_surface_signal;
 604         struct wl_signal activate_signal;
 605         struct wl_signal transform_signal;
 606
 607         struct wl_signal kill_signal;
 608         struct wl_signal idle_signal;
 609         struct wl_signal wake_signal;
 610
 611         struct wl_signal show_input_panel_signal;
 612         struct wl_signal hide_input_panel_signal;
 613         struct wl_signal update_input_panel_signal;
 614
 615         struct wl_signal seat_created_signal;
 616         struct wl_signal output_created_signal;
 617         struct wl_signal output_destroyed_signal;
 618         struct wl_signal output_moved_signal;
 619
 620         struct wl_event_loop *input_loop;
 621         struct wl_event_source *input_loop_source;
 622
 623         struct wl_signal session_signal;
 624         int session_active;
 625
 626         struct weston_layer fade_layer;
 627         struct weston_layer cursor_layer;
 628
 629         struct wl_list output_list;
 630         struct wl_list seat_list;
 631         struct wl_list layer_list;
 632         struct wl_list view_list;
 633         struct wl_list plane_list;
 634         struct wl_list key_binding_list;
 635         struct wl_list modifier_binding_list;
 636         struct wl_list button_binding_list;
 637         struct wl_list touch_binding_list;
 638         struct wl_list axis_binding_list;
 639         struct wl_list debug_binding_list;
 640
 641         struct weston_output *default_output;
 642
 643         uint32_t state;
 644         struct wl_event_source *idle_source;
 645         uint32_t idle_inhibit;
 646         int idle_time;                  /* timeout, s */
 647
 648         const struct weston_pointer_grab_interface *default_pointer_grab;
 649
 650         /* Repaint state. */
 651         struct weston_plane primary_plane;
 652         uint32_t capabilities; /* combination of enum weston_capability */
 653
 654         struct weston_renderer *renderer;
 655
 656         pixman_format_code_t read_format;
 657
 658         void (*destroy)(struct weston_compositor *ec);
 659         void (*restore)(struct weston_compositor *ec);
 660         int (*authenticate)(struct weston_compositor *c, uint32_t id);
 661
 662         struct weston_launcher *launcher;
 663
 664         uint32_t output_id_pool;
 665
 666         struct xkb_rule_names xkb_names;
 667         struct xkb_context *xkb_context;
 668         struct weston_xkb_info *xkb_info;
 669
 670         /* Raw keyboard processing (no libxkbcommon initialization or handling) */
 671         int use_xkbcommon;
 672
 673         int32_t kb_repeat_rate;
 674         int32_t kb_repeat_delay;
 675 };
 676
 677 struct weston_buffer {
 678         struct wl_resource *resource;
 679         struct wl_signal destroy_signal;
 680         struct wl_listener destroy_listener;
 681
 682         union {
 683                 struct wl_shm_buffer *shm_buffer;
 684                 void *legacy_buffer;
 685         };
 686         int32_t width, height;
 687         uint32_t busy_count;
 688         int y_inverted;
 689 };
 690
 691 struct weston_buffer_reference {
 692         struct weston_buffer *buffer;
 693         struct wl_listener destroy_listener;
 694 };
 695
 696 struct weston_buffer_viewport {
 697         struct {
 698                 /* wl_surface.set_buffer_transform */
 699                 uint32_t transform;
 700
 701                 /* wl_surface.set_scaling_factor */
 702                 int32_t scale;
 703
 704                 /*
 705                  * If src_width != wl_fixed_from_int(-1),
 706                  * then and only then src_* are used.
 707                  */
 708                 wl_fixed_t src_x, src_y;
 709                 wl_fixed_t src_width, src_height;
 710         } buffer;
 711
 712         struct {
 713                 /*
 714                  * If width == -1, the size is inferred from the buffer.
 715                  */
 716                 int32_t width, height;
 717         } surface;
 718
 719         int changed;
 720 };
 721
 722 struct weston_region {
 723         struct wl_resource *resource;
 724         pixman_region32_t region;
 725 };
 726
 727 /* Using weston_view transformations
 728  *
 729  * To add a transformation to a view, create a struct weston_transform, and
 730  * add it to the list view->geometry.transformation_list. Whenever you
 731  * change the list, anything under view->geometry, or anything in the
 732  * weston_transforms linked into the list, you must call
 733  * weston_view_geometry_dirty().
 734  *
 735  * The order in the list defines the order of transformations. Let the list
 736  * contain the transformation matrices M1, ..., Mn as head to tail. The
 737  * transformation is applied to view-local coordinate vector p as
 738  *    P = Mn * ... * M2 * M1 * p
 739  * to produce the global coordinate vector P. The total transform
 740  *    Mn * ... * M2 * M1
 741  * is cached in view->transform.matrix, and the inverse of it in
 742  * view->transform.inverse.
 743  *
 744  * The list always contains view->transform.position transformation, which
 745  * is the translation by view->geometry.x and y.
 746  *
 747  * If you want to apply a transformation in local coordinates, add your
 748  * weston_transform to the head of the list. If you want to apply a
 749  * transformation in global coordinates, add it to the tail of the list.
 750  *
 751  * If view->geometry.parent is set, the total transformation of this
 752  * view will be the parent's total transformation and this transformation
 753  * combined:
 754  *    Mparent * Mn * ... * M2 * M1
 755  */
 756
 757 struct weston_view {
 758         struct weston_surface *surface;
 759         struct wl_list surface_link;
 760         struct wl_signal destroy_signal;
 761
 762         struct wl_list link;
 763         struct weston_layer_entry layer_link;
 764         struct weston_plane *plane;
 765         struct weston_view *parent_view;
 766
 767         pixman_region32_t clip;
 768         float alpha;                     /* part of geometry, see below */
 769
 770         void *renderer_state;
 771
 772         /* Surface geometry state, mutable.
 773          * If you change anything, call weston_surface_geometry_dirty().
 774          * That includes the transformations referenced from the list.
 775          */
 776         struct {
 777                 float x, y; /* surface translation on display */
 778
 779                 /* struct weston_transform */
 780                 struct wl_list transformation_list;
 781
 782                 /* managed by weston_surface_set_transform_parent() */
 783                 struct weston_view *parent;
 784                 struct wl_listener parent_destroy_listener;
 785                 struct wl_list child_list; /* geometry.parent_link */
 786                 struct wl_list parent_link;
 787         } geometry;
 788
 789         /* State derived from geometry state, read-only.
 790          * This is updated by weston_view_update_transform().
 791          */
 792         struct {
 793                 int dirty;
 794
 795                 pixman_region32_t boundingbox;
 796                 pixman_region32_t opaque;
 797                 pixman_region32_t masked_boundingbox;
 798                 pixman_region32_t masked_opaque;
 799
 800                 /* matrix and inverse are used only if enabled = 1.
 801                  * If enabled = 0, use x, y, width, height directly.
 802                  */
 803                 int enabled;
 804                 struct weston_matrix matrix;
 805                 struct weston_matrix inverse;
 806
 807                 struct weston_transform position; /* matrix from x, y */
 808         } transform;
 809
 810         /*
 811          * Which output to vsync this surface to.
 812          * Used to determine, whether to send or queue frame events.
 813          * Must be NULL, if 'link' is not in weston_compositor::surface_list.
 814          */
 815         struct weston_output *output;
 816
 817         /*
 818          * A more complete representation of all outputs this surface is
 819          * displayed on.
 820          */
 821         uint32_t output_mask;
 822 };
 823
 824 struct weston_surface_state {
 825         /* wl_surface.attach */
 826         int newly_attached;
 827         struct weston_buffer *buffer;
 828         struct wl_listener buffer_destroy_listener;
 829         int32_t sx;
 830         int32_t sy;
 831
 832         /* wl_surface.damage */
 833         pixman_region32_t damage;
 834
 835         /* wl_surface.set_opaque_region */
 836         pixman_region32_t opaque;
 837
 838         /* wl_surface.set_input_region */
 839         pixman_region32_t input;
 840
 841         /* wl_surface.frame */
 842         struct wl_list frame_callback_list;
 843
 844         /* wl_surface.set_buffer_transform */
 845         /* wl_surface.set_scaling_factor */
 846         /* wl_viewport.set */
 847         struct weston_buffer_viewport buffer_viewport;
 848 };
 849
 850 struct weston_surface {
 851         struct wl_resource *resource;
 852         struct wl_signal destroy_signal;
 853         struct weston_compositor *compositor;
 854         pixman_region32_t damage;
 855         pixman_region32_t opaque;        /* part of geometry, see below */
 856         pixman_region32_t input;
 857         int32_t width, height;
 858         int32_t ref_count;
 859
 860         /* Not for long-term storage.  This exists for book-keeping while
 861          * iterating over surfaces and views
 862          */
 863         int32_t touched;
 864
 865         void *renderer_state;
 866
 867         struct wl_list views;
 868
 869         /*
 870          * Which output to vsync this surface to.
 871          * Used to determine, whether to send or queue frame events.
 872          * Must be NULL, if 'link' is not in weston_compositor::surface_list.
 873          */
 874         struct weston_output *output;
 875
 876         /*
 877          * A more complete representation of all outputs this surface is
 878          * displayed on.
 879          */
 880         uint32_t output_mask;
 881
 882         struct wl_list frame_callback_list;
 883
 884         struct weston_buffer_reference buffer_ref;
 885         struct weston_buffer_viewport buffer_viewport;
 886         int32_t width_from_buffer; /* before applying viewport */
 887         int32_t height_from_buffer;
 888         int keep_buffer; /* bool for backends to prevent early release */
 889
 890         /* wl_viewport resource for this surface */
 891         struct wl_resource *viewport_resource;
 892
 893         /* All the pending state, that wl_surface.commit will apply. */
 894         struct weston_surface_state pending;
 895
 896         /*
 897          * If non-NULL, this function will be called on
 898          * wl_surface::commit after a new buffer has been set up for
 899          * this surface. The integer params are the sx and sy
 900          * parameters supplied to wl_surface::attach.
 901          */
 902         void (*configure)(struct weston_surface *es, int32_t sx, int32_t sy);
 903         void *configure_private;
 904
 905         /* Parent's list of its sub-surfaces, weston_subsurface:parent_link.
 906          * Contains also the parent itself as a dummy weston_subsurface,
 907          * if the list is not empty.
 908          */
 909         struct wl_list subsurface_list; /* weston_subsurface::parent_link */
 910         struct wl_list subsurface_list_pending; /* ...::parent_link_pending */
 911 };
 912
 913 struct weston_subsurface {
 914         struct wl_resource *resource;
 915
 916         /* guaranteed to be valid and non-NULL */
 917         struct weston_surface *surface;
 918         struct wl_listener surface_destroy_listener;
 919
 920         /* can be NULL */
 921         struct weston_surface *parent;
 922         struct wl_listener parent_destroy_listener;
 923         struct wl_list parent_link;
 924         struct wl_list parent_link_pending;
 925
 926         struct {
 927                 int32_t x;
 928                 int32_t y;
 929                 int set;
 930         } position;
 931
 932         int has_cached_data;
 933         struct weston_surface_state cached;
 934         struct weston_buffer_reference cached_buffer_ref;
 935
 936         int synchronized;
 937
 938         /* Used for constructing the view tree */
 939         struct wl_list unused_views;
 940 };
 941
 942 enum weston_key_state_update {
 943         STATE_UPDATE_AUTOMATIC,
 944         STATE_UPDATE_NONE,
 945 };
 946
 947 void
 948 weston_version(int *major, int *minor, int *micro);
 949
 950 void
 951 weston_view_update_transform(struct weston_view *view);
 952
 953 void
 954 weston_view_geometry_dirty(struct weston_view *view);
 955
 956 void
 957 weston_view_to_global_fixed(struct weston_view *view,
 958                             wl_fixed_t sx, wl_fixed_t sy,
 959                             wl_fixed_t *x, wl_fixed_t *y);
 960 void
 961 weston_view_to_global_float(struct weston_view *view,
 962                             float sx, float sy, float *x, float *y);
 963
 964 void
 965 weston_view_from_global_float(struct weston_view *view,
 966                               float x, float y, float *vx, float *vy);
 967 void
 968 weston_view_from_global(struct weston_view *view,
 969                         int32_t x, int32_t y, int32_t *vx, int32_t *vy);
 970 void
 971 weston_view_from_global_fixed(struct weston_view *view,
 972                               wl_fixed_t x, wl_fixed_t y,
 973                               wl_fixed_t *vx, wl_fixed_t *vy);
 974
 975 WL_EXPORT void
 976 weston_surface_to_buffer_float(struct weston_surface *surface,
 977                                float x, float y, float *bx, float *by);
 978 WL_EXPORT void
 979 weston_surface_to_buffer(struct weston_surface *surface,
 980                          int sx, int sy, int *bx, int *by);
 981 pixman_box32_t
 982 weston_surface_to_buffer_rect(struct weston_surface *surface,
 983                               pixman_box32_t rect);
 984
 985 void
 986 weston_spring_init(struct weston_spring *spring,
 987                    double k, double current, double target);
 988 void
 989 weston_spring_update(struct weston_spring *spring, uint32_t msec);
 990 int
 991 weston_spring_done(struct weston_spring *spring);
 992
 993 void
 994 weston_surface_activate(struct weston_surface *surface,
 995                         struct weston_seat *seat);
 996 void
 997 notify_motion(struct weston_seat *seat, uint32_t time,
 998               wl_fixed_t dx, wl_fixed_t dy);
 999 void
1000 notify_motion_absolute(struct weston_seat *seat, uint32_t time,
1001                        wl_fixed_t x, wl_fixed_t y);
1002 void
1003 notify_button(struct weston_seat *seat, uint32_t time, int32_t button,
1004               enum wl_pointer_button_state state);
1005 void
1006 notify_axis(struct weston_seat *seat, uint32_t time, uint32_t axis,
1007             wl_fixed_t value);
1008 void
1009 notify_key(struct weston_seat *seat, uint32_t time, uint32_t key,
1010            enum wl_keyboard_key_state state,
1011            enum weston_key_state_update update_state);
1012 void
1013 notify_modifiers(struct weston_seat *seat, uint32_t serial);
1014
1015 void
1016 notify_pointer_focus(struct weston_seat *seat, struct weston_output *output,
1017                      wl_fixed_t x, wl_fixed_t y);
1018
1019 void
1020 notify_keyboard_focus_in(struct weston_seat *seat, struct wl_array *keys,
1021                          enum weston_key_state_update update_state);
1022 void
1023 notify_keyboard_focus_out(struct weston_seat *seat);
1024
1025 void
1026 notify_touch(struct weston_seat *seat, uint32_t time, int touch_id,
1027              wl_fixed_t x, wl_fixed_t y, int touch_type);
1028 void
1029 notify_touch_frame(struct weston_seat *seat);
1030
1031 void
1032 weston_layer_entry_insert(struct weston_layer_entry *list,
1033                           struct weston_layer_entry *entry);
1034 void
1035 weston_layer_entry_remove(struct weston_layer_entry *entry);
1036 void
1037 weston_layer_init(struct weston_layer *layer, struct wl_list *below);
1038
1039 void
1040 weston_layer_set_mask(struct weston_layer *layer, int x, int y, int width, int height);
1041
1042 void
1043 weston_layer_set_mask_infinite(struct weston_layer *layer);
1044
1045 void
1046 weston_plane_init(struct weston_plane *plane,
1047                         struct weston_compositor *ec,
1048                         int32_t x, int32_t y);
1049 void
1050 weston_plane_release(struct weston_plane *plane);
1051
1052 void
1053 weston_compositor_stack_plane(struct weston_compositor *ec,
1054                               struct weston_plane *plane,
1055                               struct weston_plane *above);
1056
1057 void
1058 weston_output_finish_frame(struct weston_output *output, uint32_t msecs);
1059 void
1060 weston_output_schedule_repaint(struct weston_output *output);
1061 void
1062 weston_output_damage(struct weston_output *output);
1063 void
1064 weston_compositor_schedule_repaint(struct weston_compositor *compositor);
1065 void
1066 weston_compositor_fade(struct weston_compositor *compositor, float tint);
1067 void
1068 weston_compositor_damage_all(struct weston_compositor *compositor);
1069 void
1070 weston_compositor_unlock(struct weston_compositor *compositor);
1071 void
1072 weston_compositor_wake(struct weston_compositor *compositor);
1073 void
1074 weston_compositor_offscreen(struct weston_compositor *compositor);
1075 void
1076 weston_compositor_sleep(struct weston_compositor *compositor);
1077 struct weston_view *
1078 weston_compositor_pick_view(struct weston_compositor *compositor,
1079                             wl_fixed_t x, wl_fixed_t y,
1080                             wl_fixed_t *sx, wl_fixed_t *sy);
1081
1082
1083 struct weston_binding;
1084 typedef void (*weston_key_binding_handler_t)(struct weston_seat *seat,
1085                                              uint32_t time, uint32_t key,
1086                                              void *data);
1087 struct weston_binding *
1088 weston_compositor_add_key_binding(struct weston_compositor *compositor,
1089                                   uint32_t key,
1090                                   enum weston_keyboard_modifier modifier,
1091                                   weston_key_binding_handler_t binding,
1092                                   void *data);
1093
1094 typedef void (*weston_modifier_binding_handler_t)(struct weston_seat *seat,
1095                                                   enum weston_keyboard_modifier modifier,
1096                                                   void *data);
1097 struct weston_binding *
1098 weston_compositor_add_modifier_binding(struct weston_compositor *compositor,
1099                                        enum weston_keyboard_modifier modifier,
1100                                        weston_modifier_binding_handler_t binding,
1101                                        void *data);
1102
1103 typedef void (*weston_button_binding_handler_t)(struct weston_seat *seat,
1104                                                 uint32_t time, uint32_t button,
1105                                                 void *data);
1106 struct weston_binding *
1107 weston_compositor_add_button_binding(struct weston_compositor *compositor,
1108                                      uint32_t button,
1109                                      enum weston_keyboard_modifier modifier,
1110                                      weston_button_binding_handler_t binding,
1111                                      void *data);
1112
1113 typedef void (*weston_touch_binding_handler_t)(struct weston_seat *seat,
1114                                                uint32_t time,
1115                                                void *data);
1116 struct weston_binding *
1117 weston_compositor_add_touch_binding(struct weston_compositor *compositor,
1118                                     enum weston_keyboard_modifier modifier,
1119                                     weston_touch_binding_handler_t binding,
1120                                     void *data);
1121
1122 typedef void (*weston_axis_binding_handler_t)(struct weston_seat *seat,
1123                                               uint32_t time, uint32_t axis,
1124                                               wl_fixed_t value, void *data);
1125 struct weston_binding *
1126 weston_compositor_add_axis_binding(struct weston_compositor *compositor,
1127                                    uint32_t axis,
1128                                    enum weston_keyboard_modifier modifier,
1129                                    weston_axis_binding_handler_t binding,
1130                                    void *data);
1131 struct weston_binding *
1132 weston_compositor_add_debug_binding(struct weston_compositor *compositor,
1133                                     uint32_t key,
1134                                     weston_key_binding_handler_t binding,
1135                                     void *data);
1136 void
1137 weston_binding_destroy(struct weston_binding *binding);
1138
1139 void
1140 weston_binding_list_destroy_all(struct wl_list *list);
1141
1142 void
1143 weston_compositor_run_key_binding(struct weston_compositor *compositor,
1144                                   struct weston_seat *seat, uint32_t time,
1145                                   uint32_t key,
1146                                   enum wl_keyboard_key_state state);
1147
1148 void
1149 weston_compositor_run_modifier_binding(struct weston_compositor *compositor,
1150                                        struct weston_seat *seat,
1151                                        enum weston_keyboard_modifier modifier,
1152                                        enum wl_keyboard_key_state state);
1153 void
1154 weston_compositor_run_button_binding(struct weston_compositor *compositor,
1155                                      struct weston_seat *seat, uint32_t time,
1156                                      uint32_t button,
1157                                      enum wl_pointer_button_state value);
1158 void
1159 weston_compositor_run_touch_binding(struct weston_compositor *compositor,
1160                                     struct weston_seat *seat, uint32_t time,
1161                                     int touch_type);
1162 int
1163 weston_compositor_run_axis_binding(struct weston_compositor *compositor,
1164                                    struct weston_seat *seat, uint32_t time,
1165                                    uint32_t axis, int32_t value);
1166 int
1167 weston_compositor_run_debug_binding(struct weston_compositor *compositor,
1168                                     struct weston_seat *seat, uint32_t time,
1169                                     uint32_t key,
1170                                     enum wl_keyboard_key_state state);
1171
1172 void
1173 weston_compositor_set_default_pointer_grab(struct weston_compositor *compositor,
1174                         const struct weston_pointer_grab_interface *interface);
1175
1176 int
1177 weston_environment_get_fd(const char *env);
1178
1179 struct wl_list *
1180 weston_compositor_top(struct weston_compositor *compositor);
1181
1182 struct weston_surface *
1183 weston_surface_create(struct weston_compositor *compositor);
1184
1185 struct weston_view *
1186 weston_view_create(struct weston_surface *surface);
1187
1188 void
1189 weston_view_destroy(struct weston_view *view);
1190
1191 void
1192 weston_view_set_position(struct weston_view *view,
1193                          float x, float y);
1194
1195 void
1196 weston_view_set_transform_parent(struct weston_view *view,
1197                                  struct weston_view *parent);
1198
1199 int
1200 weston_view_is_mapped(struct weston_view *view);
1201
1202 void
1203 weston_view_schedule_repaint(struct weston_view *view);
1204
1205 int
1206 weston_surface_is_mapped(struct weston_surface *surface);
1207
1208 WL_EXPORT void
1209 weston_surface_set_size(struct weston_surface *surface,
1210                         int32_t width, int32_t height);
1211
1212 void
1213 weston_surface_schedule_repaint(struct weston_surface *surface);
1214
1215 void
1216 weston_surface_damage(struct weston_surface *surface);
1217
1218 void
1219 weston_view_damage_below(struct weston_view *view);
1220
1221 void
1222 weston_view_move_to_plane(struct weston_view *view,
1223                           struct weston_plane *plane);
1224 void
1225 weston_view_unmap(struct weston_view *view);
1226
1227 void
1228 weston_surface_unmap(struct weston_surface *surface);
1229
1230 struct weston_surface *
1231 weston_surface_get_main_surface(struct weston_surface *surface);
1232
1233 struct weston_buffer *
1234 weston_buffer_from_resource(struct wl_resource *resource);
1235
1236 void
1237 weston_buffer_reference(struct weston_buffer_reference *ref,
1238                         struct weston_buffer *buffer);
1239
1240 uint32_t
1241 weston_compositor_get_time(void);
1242
1243 int
1244 weston_compositor_init(struct weston_compositor *ec, struct wl_display *display,
1245                        int *argc, char *argv[], struct weston_config *config);
1246 void
1247 weston_compositor_shutdown(struct weston_compositor *ec);
1248 void
1249 weston_output_init_zoom(struct weston_output *output);
1250 void
1251 weston_output_update_zoom(struct weston_output *output);
1252 void
1253 weston_output_activate_zoom(struct weston_output *output);
1254 void
1255 weston_output_update_matrix(struct weston_output *output);
1256 void
1257 weston_output_move(struct weston_output *output, int x, int y);
1258 void
1259 weston_output_init(struct weston_output *output, struct weston_compositor *c,
1260                    int x, int y, int width, int height, uint32_t transform, int32_t scale);
1261 void
1262 weston_output_destroy(struct weston_output *output);
1263 void
1264 weston_output_transform_coordinate(struct weston_output *output,
1265                                    wl_fixed_t device_x, wl_fixed_t device_y,
1266                                    wl_fixed_t *x, wl_fixed_t *y);
1267
1268 void
1269 weston_seat_init(struct weston_seat *seat, struct weston_compositor *ec,
1270                  const char *seat_name);
1271 void
1272 weston_seat_init_pointer(struct weston_seat *seat);
1273 void
1274 weston_seat_release_pointer(struct weston_seat *seat);
1275 int
1276 weston_seat_init_keyboard(struct weston_seat *seat, struct xkb_keymap *keymap);
1277 void
1278 weston_seat_release_keyboard(struct weston_seat *seat);
1279 void
1280 weston_seat_init_touch(struct weston_seat *seat);
1281 void
1282 weston_seat_release_touch(struct weston_seat *seat);
1283 void
1284 weston_seat_repick(struct weston_seat *seat);
1285 void
1286 weston_seat_update_keymap(struct weston_seat *seat, struct xkb_keymap *keymap);
1287
1288 void
1289 weston_seat_release(struct weston_seat *seat);
1290 int
1291 weston_compositor_xkb_init(struct weston_compositor *ec,
1292                            struct xkb_rule_names *names);
1293 void
1294 weston_compositor_xkb_destroy(struct weston_compositor *ec);
1295
1296 /* String literal of spaces, the same width as the timestamp. */
1297 #define STAMP_SPACE "               "
1298
1299 void
1300 weston_log_file_open(const char *filename);
1301 void
1302 weston_log_file_close(void);
1303 int
1304 weston_vlog(const char *fmt, va_list ap);
1305 int
1306 weston_vlog_continue(const char *fmt, va_list ap);
1307 int
1308 weston_log(const char *fmt, ...)
1309         __attribute__ ((format (printf, 1, 2)));
1310 int
1311 weston_log_continue(const char *fmt, ...)
1312         __attribute__ ((format (printf, 1, 2)));
1313
1314 enum {
1315         TTY_ENTER_VT,
1316         TTY_LEAVE_VT
1317 };
1318
1319 struct tty *
1320 tty_create(struct weston_compositor *compositor, int tty_nr);
1321
1322 void
1323 tty_destroy(struct tty *tty);
1324
1325 void
1326 tty_reset(struct tty *tty);
1327
1328 int
1329 tty_activate_vt(struct tty *tty, int vt);
1330
1331 void
1332 screenshooter_create(struct weston_compositor *ec);
1333
1334 enum weston_screenshooter_outcome {
1335         WESTON_SCREENSHOOTER_SUCCESS,
1336         WESTON_SCREENSHOOTER_NO_MEMORY,
1337         WESTON_SCREENSHOOTER_BAD_BUFFER
1338 };
1339
1340 typedef void (*weston_screenshooter_done_func_t)(void *data,
1341                                 enum weston_screenshooter_outcome outcome);
1342 int
1343 weston_screenshooter_shoot(struct weston_output *output, struct weston_buffer *buffer,
1344                            weston_screenshooter_done_func_t done, void *data);
1345
1346 struct clipboard *
1347 clipboard_create(struct weston_seat *seat);
1348
1349 int
1350 text_backend_init(struct weston_compositor *ec);
1351
1352 struct weston_process;
1353 typedef void (*weston_process_cleanup_func_t)(struct weston_process *process,
1354                                             int status);
1355
1356 struct weston_process {
1357         pid_t pid;
1358         weston_process_cleanup_func_t cleanup;
1359         struct wl_list link;
1360 };
1361
1362 struct wl_client *
1363 weston_client_launch(struct weston_compositor *compositor,
1364                      struct weston_process *proc,
1365                      const char *path,
1366                      weston_process_cleanup_func_t cleanup);
1367
1368 struct wl_client *
1369 weston_client_start(struct weston_compositor *compositor, const char *path);
1370
1371 void
1372 weston_watch_process(struct weston_process *process);
1373
1374 struct weston_view_animation;
1375 typedef void (*weston_view_animation_done_func_t)(struct weston_view_animation *animation, void *data);
1376
1377 void
1378 weston_view_animation_destroy(struct weston_view_animation *animation);
1379
1380 struct weston_view_animation *
1381 weston_zoom_run(struct weston_view *view, float start, float stop,
1382                 weston_view_animation_done_func_t done, void *data);
1383
1384 struct weston_view_animation *
1385 weston_fade_run(struct weston_view *view,
1386                 float start, float end, float k,
1387                 weston_view_animation_done_func_t done, void *data);
1388
1389 struct weston_view_animation *
1390 weston_move_scale_run(struct weston_view *view, int dx, int dy,
1391                       float start, float end, int reverse,
1392                       weston_view_animation_done_func_t done, void *data);
1393
1394 void
1395 weston_fade_update(struct weston_view_animation *fade, float target);
1396
1397 struct weston_view_animation *
1398 weston_stable_fade_run(struct weston_view *front_view, float start,
1399                        struct weston_view *back_view, float end,
1400                        weston_view_animation_done_func_t done, void *data);
1401
1402 struct weston_view_animation *
1403 weston_slide_run(struct weston_view *view, float start, float stop,
1404                  weston_view_animation_done_func_t done, void *data);
1405
1406 void
1407 weston_surface_set_color(struct weston_surface *surface,
1408                          float red, float green, float blue, float alpha);
1409
1410 void
1411 weston_surface_destroy(struct weston_surface *surface);
1412
1413 int
1414 weston_output_switch_mode(struct weston_output *output, struct weston_mode *mode,
1415                         int32_t scale, enum weston_mode_switch_op op);
1416
1417 int
1418 noop_renderer_init(struct weston_compositor *ec);
1419
1420 struct weston_compositor *
1421 backend_init(struct wl_display *display, int *argc, char *argv[],
1422              struct weston_config *config);
1423
1424 int
1425 module_init(struct weston_compositor *compositor,
1426             int *argc, char *argv[]);
1427
1428 void
1429 weston_transformed_coord(int width, int height,
1430                          enum wl_output_transform transform,
1431                          int32_t scale,
1432                          float sx, float sy, float *bx, float *by);
1433 pixman_box32_t
1434 weston_transformed_rect(int width, int height,
1435                         enum wl_output_transform transform,
1436                         int32_t scale,
1437                         pixman_box32_t rect);
1438 void
1439 weston_transformed_region(int width, int height,
1440                           enum wl_output_transform transform,
1441                           int32_t scale,
1442                           pixman_region32_t *src, pixman_region32_t *dest);
1443
1444 void *
1445 weston_load_module(const char *name, const char *entrypoint);
1446
1447 #ifdef  __cplusplus
1448 }
1449 #endif
1450
1451 #endif