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         void (*repaint_output)(struct weston_output *output,
 569                                pixman_region32_t *output_damage);
 570         void (*flush_damage)(struct weston_surface *surface);
 571         void (*attach)(struct weston_surface *es, struct weston_buffer *buffer);
 572         void (*surface_set_color)(struct weston_surface *surface,
 573                                float red, float green,
 574                                float blue, float alpha);
 575         void (*destroy)(struct weston_compositor *ec);
 576 };
 577
 578 enum weston_capability {
 579         /* backend/renderer supports arbitrary rotation */
 580         WESTON_CAP_ROTATION_ANY                 = 0x0001,
 581
 582         /* screencaptures need to be y-flipped */
 583         WESTON_CAP_CAPTURE_YFLIP                = 0x0002,
 584
 585         /* backend/renderer has a seperate cursor plane */
 586         WESTON_CAP_CURSOR_PLANE                 = 0x0004,
 587
 588         /* backend supports setting arbitrary resolutions */
 589         WESTON_CAP_ARBITRARY_MODES              = 0x0008,
 590 };
 591
 592 struct weston_compositor {
 593         struct wl_signal destroy_signal;
 594
 595         struct wl_display *wl_display;
 596         struct weston_shell_interface shell_interface;
 597         struct weston_config *config;
 598
 599         /* surface signals */
 600         struct wl_signal create_surface_signal;
 601         struct wl_signal activate_signal;
 602         struct wl_signal transform_signal;
 603
 604         struct wl_signal kill_signal;
 605         struct wl_signal idle_signal;
 606         struct wl_signal wake_signal;
 607
 608         struct wl_signal show_input_panel_signal;
 609         struct wl_signal hide_input_panel_signal;
 610         struct wl_signal update_input_panel_signal;
 611
 612         struct wl_signal seat_created_signal;
 613         struct wl_signal output_created_signal;
 614         struct wl_signal output_destroyed_signal;
 615         struct wl_signal output_moved_signal;
 616
 617         struct wl_event_loop *input_loop;
 618         struct wl_event_source *input_loop_source;
 619
 620         struct wl_signal session_signal;
 621         int session_active;
 622
 623         struct weston_layer fade_layer;
 624         struct weston_layer cursor_layer;
 625
 626         struct wl_list output_list;
 627         struct wl_list seat_list;
 628         struct wl_list layer_list;
 629         struct wl_list view_list;
 630         struct wl_list plane_list;
 631         struct wl_list key_binding_list;
 632         struct wl_list modifier_binding_list;
 633         struct wl_list button_binding_list;
 634         struct wl_list touch_binding_list;
 635         struct wl_list axis_binding_list;
 636         struct wl_list debug_binding_list;
 637
 638         struct weston_output *default_output;
 639
 640         uint32_t state;
 641         struct wl_event_source *idle_source;
 642         uint32_t idle_inhibit;
 643         int idle_time;                  /* timeout, s */
 644
 645         const struct weston_pointer_grab_interface *default_pointer_grab;
 646
 647         /* Repaint state. */
 648         struct weston_plane primary_plane;
 649         uint32_t capabilities; /* combination of enum weston_capability */
 650
 651         struct weston_renderer *renderer;
 652
 653         pixman_format_code_t read_format;
 654
 655         void (*destroy)(struct weston_compositor *ec);
 656         void (*restore)(struct weston_compositor *ec);
 657         int (*authenticate)(struct weston_compositor *c, uint32_t id);
 658
 659         struct weston_launcher *launcher;
 660
 661         uint32_t output_id_pool;
 662
 663         struct xkb_rule_names xkb_names;
 664         struct xkb_context *xkb_context;
 665         struct weston_xkb_info *xkb_info;
 666
 667         /* Raw keyboard processing (no libxkbcommon initialization or handling) */
 668         int use_xkbcommon;
 669
 670         int32_t kb_repeat_rate;
 671         int32_t kb_repeat_delay;
 672 };
 673
 674 struct weston_buffer {
 675         struct wl_resource *resource;
 676         struct wl_signal destroy_signal;
 677         struct wl_listener destroy_listener;
 678
 679         union {
 680                 struct wl_shm_buffer *shm_buffer;
 681                 void *legacy_buffer;
 682         };
 683         int32_t width, height;
 684         uint32_t busy_count;
 685         int y_inverted;
 686 };
 687
 688 struct weston_buffer_reference {
 689         struct weston_buffer *buffer;
 690         struct wl_listener destroy_listener;
 691 };
 692
 693 struct weston_buffer_viewport {
 694         struct {
 695                 /* wl_surface.set_buffer_transform */
 696                 uint32_t transform;
 697
 698                 /* wl_surface.set_scaling_factor */
 699                 int32_t scale;
 700
 701                 /*
 702                  * If src_width != wl_fixed_from_int(-1),
 703                  * then and only then src_* are used.
 704                  */
 705                 wl_fixed_t src_x, src_y;
 706                 wl_fixed_t src_width, src_height;
 707         } buffer;
 708
 709         struct {
 710                 /*
 711                  * If width == -1, the size is inferred from the buffer.
 712                  */
 713                 int32_t width, height;
 714         } surface;
 715
 716         int changed;
 717 };
 718
 719 struct weston_region {
 720         struct wl_resource *resource;
 721         pixman_region32_t region;
 722 };
 723
 724 /* Using weston_view transformations
 725  *
 726  * To add a transformation to a view, create a struct weston_transform, and
 727  * add it to the list view->geometry.transformation_list. Whenever you
 728  * change the list, anything under view->geometry, or anything in the
 729  * weston_transforms linked into the list, you must call
 730  * weston_view_geometry_dirty().
 731  *
 732  * The order in the list defines the order of transformations. Let the list
 733  * contain the transformation matrices M1, ..., Mn as head to tail. The
 734  * transformation is applied to view-local coordinate vector p as
 735  *    P = Mn * ... * M2 * M1 * p
 736  * to produce the global coordinate vector P. The total transform
 737  *    Mn * ... * M2 * M1
 738  * is cached in view->transform.matrix, and the inverse of it in
 739  * view->transform.inverse.
 740  *
 741  * The list always contains view->transform.position transformation, which
 742  * is the translation by view->geometry.x and y.
 743  *
 744  * If you want to apply a transformation in local coordinates, add your
 745  * weston_transform to the head of the list. If you want to apply a
 746  * transformation in global coordinates, add it to the tail of the list.
 747  *
 748  * If view->geometry.parent is set, the total transformation of this
 749  * view will be the parent's total transformation and this transformation
 750  * combined:
 751  *    Mparent * Mn * ... * M2 * M1
 752  */
 753
 754 struct weston_view {
 755         struct weston_surface *surface;
 756         struct wl_list surface_link;
 757         struct wl_signal destroy_signal;
 758
 759         struct wl_list link;
 760         struct weston_layer_entry layer_link;
 761         struct weston_plane *plane;
 762         struct weston_view *parent_view;
 763
 764         pixman_region32_t clip;
 765         float alpha;                     /* part of geometry, see below */
 766
 767         void *renderer_state;
 768
 769         /* Surface geometry state, mutable.
 770          * If you change anything, call weston_surface_geometry_dirty().
 771          * That includes the transformations referenced from the list.
 772          */
 773         struct {
 774                 float x, y; /* surface translation on display */
 775
 776                 /* struct weston_transform */
 777                 struct wl_list transformation_list;
 778
 779                 /* managed by weston_surface_set_transform_parent() */
 780                 struct weston_view *parent;
 781                 struct wl_listener parent_destroy_listener;
 782                 struct wl_list child_list; /* geometry.parent_link */
 783                 struct wl_list parent_link;
 784         } geometry;
 785
 786         /* State derived from geometry state, read-only.
 787          * This is updated by weston_view_update_transform().
 788          */
 789         struct {
 790                 int dirty;
 791
 792                 pixman_region32_t boundingbox;
 793                 pixman_region32_t opaque;
 794                 pixman_region32_t masked_boundingbox;
 795                 pixman_region32_t masked_opaque;
 796
 797                 /* matrix and inverse are used only if enabled = 1.
 798                  * If enabled = 0, use x, y, width, height directly.
 799                  */
 800                 int enabled;
 801                 struct weston_matrix matrix;
 802                 struct weston_matrix inverse;
 803
 804                 struct weston_transform position; /* matrix from x, y */
 805         } transform;
 806
 807         /*
 808          * Which output to vsync this surface to.
 809          * Used to determine, whether to send or queue frame events.
 810          * Must be NULL, if 'link' is not in weston_compositor::surface_list.
 811          */
 812         struct weston_output *output;
 813
 814         /*
 815          * A more complete representation of all outputs this surface is
 816          * displayed on.
 817          */
 818         uint32_t output_mask;
 819 };
 820
 821 struct weston_surface_state {
 822         /* wl_surface.attach */
 823         int newly_attached;
 824         struct weston_buffer *buffer;
 825         struct wl_listener buffer_destroy_listener;
 826         int32_t sx;
 827         int32_t sy;
 828
 829         /* wl_surface.damage */
 830         pixman_region32_t damage;
 831
 832         /* wl_surface.set_opaque_region */
 833         pixman_region32_t opaque;
 834
 835         /* wl_surface.set_input_region */
 836         pixman_region32_t input;
 837
 838         /* wl_surface.frame */
 839         struct wl_list frame_callback_list;
 840
 841         /* wl_surface.set_buffer_transform */
 842         /* wl_surface.set_scaling_factor */
 843         /* wl_viewport.set */
 844         struct weston_buffer_viewport buffer_viewport;
 845 };
 846
 847 struct weston_surface {
 848         struct wl_resource *resource;
 849         struct wl_signal destroy_signal;
 850         struct weston_compositor *compositor;
 851         pixman_region32_t damage;
 852         pixman_region32_t opaque;        /* part of geometry, see below */
 853         pixman_region32_t input;
 854         int32_t width, height;
 855         int32_t ref_count;
 856
 857         /* Not for long-term storage.  This exists for book-keeping while
 858          * iterating over surfaces and views
 859          */
 860         int32_t touched;
 861
 862         void *renderer_state;
 863
 864         struct wl_list views;
 865
 866         /*
 867          * Which output to vsync this surface to.
 868          * Used to determine, whether to send or queue frame events.
 869          * Must be NULL, if 'link' is not in weston_compositor::surface_list.
 870          */
 871         struct weston_output *output;
 872
 873         /*
 874          * A more complete representation of all outputs this surface is
 875          * displayed on.
 876          */
 877         uint32_t output_mask;
 878
 879         struct wl_list frame_callback_list;
 880
 881         struct weston_buffer_reference buffer_ref;
 882         struct weston_buffer_viewport buffer_viewport;
 883         int32_t width_from_buffer; /* before applying viewport */
 884         int32_t height_from_buffer;
 885         int keep_buffer; /* bool for backends to prevent early release */
 886
 887         /* wl_viewport resource for this surface */
 888         struct wl_resource *viewport_resource;
 889
 890         /* All the pending state, that wl_surface.commit will apply. */
 891         struct weston_surface_state pending;
 892
 893         /*
 894          * If non-NULL, this function will be called on
 895          * wl_surface::commit after a new buffer has been set up for
 896          * this surface. The integer params are the sx and sy
 897          * parameters supplied to wl_surface::attach.
 898          */
 899         void (*configure)(struct weston_surface *es, int32_t sx, int32_t sy);
 900         void *configure_private;
 901
 902         /* Parent's list of its sub-surfaces, weston_subsurface:parent_link.
 903          * Contains also the parent itself as a dummy weston_subsurface,
 904          * if the list is not empty.
 905          */
 906         struct wl_list subsurface_list; /* weston_subsurface::parent_link */
 907         struct wl_list subsurface_list_pending; /* ...::parent_link_pending */
 908 };
 909
 910 struct weston_subsurface {
 911         struct wl_resource *resource;
 912
 913         /* guaranteed to be valid and non-NULL */
 914         struct weston_surface *surface;
 915         struct wl_listener surface_destroy_listener;
 916
 917         /* can be NULL */
 918         struct weston_surface *parent;
 919         struct wl_listener parent_destroy_listener;
 920         struct wl_list parent_link;
 921         struct wl_list parent_link_pending;
 922
 923         struct {
 924                 int32_t x;
 925                 int32_t y;
 926                 int set;
 927         } position;
 928
 929         int has_cached_data;
 930         struct weston_surface_state cached;
 931         struct weston_buffer_reference cached_buffer_ref;
 932
 933         int synchronized;
 934
 935         /* Used for constructing the view tree */
 936         struct wl_list unused_views;
 937 };
 938
 939 enum weston_key_state_update {
 940         STATE_UPDATE_AUTOMATIC,
 941         STATE_UPDATE_NONE,
 942 };
 943
 944 void
 945 weston_version(int *major, int *minor, int *micro);
 946
 947 void
 948 weston_view_update_transform(struct weston_view *view);
 949
 950 void
 951 weston_view_geometry_dirty(struct weston_view *view);
 952
 953 void
 954 weston_view_to_global_fixed(struct weston_view *view,
 955                             wl_fixed_t sx, wl_fixed_t sy,
 956                             wl_fixed_t *x, wl_fixed_t *y);
 957 void
 958 weston_view_to_global_float(struct weston_view *view,
 959                             float sx, float sy, float *x, float *y);
 960
 961 void
 962 weston_view_from_global_float(struct weston_view *view,
 963                               float x, float y, float *vx, float *vy);
 964 void
 965 weston_view_from_global(struct weston_view *view,
 966                         int32_t x, int32_t y, int32_t *vx, int32_t *vy);
 967 void
 968 weston_view_from_global_fixed(struct weston_view *view,
 969                               wl_fixed_t x, wl_fixed_t y,
 970                               wl_fixed_t *vx, wl_fixed_t *vy);
 971
 972 WL_EXPORT void
 973 weston_surface_to_buffer_float(struct weston_surface *surface,
 974                                float x, float y, float *bx, float *by);
 975 WL_EXPORT void
 976 weston_surface_to_buffer(struct weston_surface *surface,
 977                          int sx, int sy, int *bx, int *by);
 978 pixman_box32_t
 979 weston_surface_to_buffer_rect(struct weston_surface *surface,
 980                               pixman_box32_t rect);
 981
 982 void
 983 weston_spring_init(struct weston_spring *spring,
 984                    double k, double current, double target);
 985 void
 986 weston_spring_update(struct weston_spring *spring, uint32_t msec);
 987 int
 988 weston_spring_done(struct weston_spring *spring);
 989
 990 void
 991 weston_surface_activate(struct weston_surface *surface,
 992                         struct weston_seat *seat);
 993 void
 994 notify_motion(struct weston_seat *seat, uint32_t time,
 995               wl_fixed_t dx, wl_fixed_t dy);
 996 void
 997 notify_motion_absolute(struct weston_seat *seat, uint32_t time,
 998                        wl_fixed_t x, wl_fixed_t y);
 999 void
1000 notify_button(struct weston_seat *seat, uint32_t time, int32_t button,
1001               enum wl_pointer_button_state state);
1002 void
1003 notify_axis(struct weston_seat *seat, uint32_t time, uint32_t axis,
1004             wl_fixed_t value);
1005 void
1006 notify_key(struct weston_seat *seat, uint32_t time, uint32_t key,
1007            enum wl_keyboard_key_state state,
1008            enum weston_key_state_update update_state);
1009 void
1010 notify_modifiers(struct weston_seat *seat, uint32_t serial);
1011
1012 void
1013 notify_pointer_focus(struct weston_seat *seat, struct weston_output *output,
1014                      wl_fixed_t x, wl_fixed_t y);
1015
1016 void
1017 notify_keyboard_focus_in(struct weston_seat *seat, struct wl_array *keys,
1018                          enum weston_key_state_update update_state);
1019 void
1020 notify_keyboard_focus_out(struct weston_seat *seat);
1021
1022 void
1023 notify_touch(struct weston_seat *seat, uint32_t time, int touch_id,
1024              wl_fixed_t x, wl_fixed_t y, int touch_type);
1025 void
1026 notify_touch_frame(struct weston_seat *seat);
1027
1028 void
1029 weston_layer_entry_insert(struct weston_layer_entry *list,
1030                           struct weston_layer_entry *entry);
1031 void
1032 weston_layer_entry_remove(struct weston_layer_entry *entry);
1033 void
1034 weston_layer_init(struct weston_layer *layer, struct wl_list *below);
1035
1036 void
1037 weston_layer_set_mask(struct weston_layer *layer, int x, int y, int width, int height);
1038
1039 void
1040 weston_layer_set_mask_infinite(struct weston_layer *layer);
1041
1042 void
1043 weston_plane_init(struct weston_plane *plane,
1044                         struct weston_compositor *ec,
1045                         int32_t x, int32_t y);
1046 void
1047 weston_plane_release(struct weston_plane *plane);
1048
1049 void
1050 weston_compositor_stack_plane(struct weston_compositor *ec,
1051                               struct weston_plane *plane,
1052                               struct weston_plane *above);
1053
1054 void
1055 weston_output_finish_frame(struct weston_output *output, uint32_t msecs);
1056 void
1057 weston_output_schedule_repaint(struct weston_output *output);
1058 void
1059 weston_output_damage(struct weston_output *output);
1060 void
1061 weston_compositor_schedule_repaint(struct weston_compositor *compositor);
1062 void
1063 weston_compositor_fade(struct weston_compositor *compositor, float tint);
1064 void
1065 weston_compositor_damage_all(struct weston_compositor *compositor);
1066 void
1067 weston_compositor_unlock(struct weston_compositor *compositor);
1068 void
1069 weston_compositor_wake(struct weston_compositor *compositor);
1070 void
1071 weston_compositor_offscreen(struct weston_compositor *compositor);
1072 void
1073 weston_compositor_sleep(struct weston_compositor *compositor);
1074 struct weston_view *
1075 weston_compositor_pick_view(struct weston_compositor *compositor,
1076                             wl_fixed_t x, wl_fixed_t y,
1077                             wl_fixed_t *sx, wl_fixed_t *sy);
1078
1079
1080 struct weston_binding;
1081 typedef void (*weston_key_binding_handler_t)(struct weston_seat *seat,
1082                                              uint32_t time, uint32_t key,
1083                                              void *data);
1084 struct weston_binding *
1085 weston_compositor_add_key_binding(struct weston_compositor *compositor,
1086                                   uint32_t key,
1087                                   enum weston_keyboard_modifier modifier,
1088                                   weston_key_binding_handler_t binding,
1089                                   void *data);
1090
1091 typedef void (*weston_modifier_binding_handler_t)(struct weston_seat *seat,
1092                                                   enum weston_keyboard_modifier modifier,
1093                                                   void *data);
1094 struct weston_binding *
1095 weston_compositor_add_modifier_binding(struct weston_compositor *compositor,
1096                                        enum weston_keyboard_modifier modifier,
1097                                        weston_modifier_binding_handler_t binding,
1098                                        void *data);
1099
1100 typedef void (*weston_button_binding_handler_t)(struct weston_seat *seat,
1101                                                 uint32_t time, uint32_t button,
1102                                                 void *data);
1103 struct weston_binding *
1104 weston_compositor_add_button_binding(struct weston_compositor *compositor,
1105                                      uint32_t button,
1106                                      enum weston_keyboard_modifier modifier,
1107                                      weston_button_binding_handler_t binding,
1108                                      void *data);
1109
1110 typedef void (*weston_touch_binding_handler_t)(struct weston_seat *seat,
1111                                                uint32_t time,
1112                                                void *data);
1113 struct weston_binding *
1114 weston_compositor_add_touch_binding(struct weston_compositor *compositor,
1115                                     enum weston_keyboard_modifier modifier,
1116                                     weston_touch_binding_handler_t binding,
1117                                     void *data);
1118
1119 typedef void (*weston_axis_binding_handler_t)(struct weston_seat *seat,
1120                                               uint32_t time, uint32_t axis,
1121                                               wl_fixed_t value, void *data);
1122 struct weston_binding *
1123 weston_compositor_add_axis_binding(struct weston_compositor *compositor,
1124                                    uint32_t axis,
1125                                    enum weston_keyboard_modifier modifier,
1126                                    weston_axis_binding_handler_t binding,
1127                                    void *data);
1128 struct weston_binding *
1129 weston_compositor_add_debug_binding(struct weston_compositor *compositor,
1130                                     uint32_t key,
1131                                     weston_key_binding_handler_t binding,
1132                                     void *data);
1133 void
1134 weston_binding_destroy(struct weston_binding *binding);
1135
1136 void
1137 weston_binding_list_destroy_all(struct wl_list *list);
1138
1139 void
1140 weston_compositor_run_key_binding(struct weston_compositor *compositor,
1141                                   struct weston_seat *seat, uint32_t time,
1142                                   uint32_t key,
1143                                   enum wl_keyboard_key_state state);
1144
1145 void
1146 weston_compositor_run_modifier_binding(struct weston_compositor *compositor,
1147                                        struct weston_seat *seat,
1148                                        enum weston_keyboard_modifier modifier,
1149                                        enum wl_keyboard_key_state state);
1150 void
1151 weston_compositor_run_button_binding(struct weston_compositor *compositor,
1152                                      struct weston_seat *seat, uint32_t time,
1153                                      uint32_t button,
1154                                      enum wl_pointer_button_state value);
1155 void
1156 weston_compositor_run_touch_binding(struct weston_compositor *compositor,
1157                                     struct weston_seat *seat, uint32_t time,
1158                                     int touch_type);
1159 int
1160 weston_compositor_run_axis_binding(struct weston_compositor *compositor,
1161                                    struct weston_seat *seat, uint32_t time,
1162                                    uint32_t axis, int32_t value);
1163 int
1164 weston_compositor_run_debug_binding(struct weston_compositor *compositor,
1165                                     struct weston_seat *seat, uint32_t time,
1166                                     uint32_t key,
1167                                     enum wl_keyboard_key_state state);
1168
1169 void
1170 weston_compositor_set_default_pointer_grab(struct weston_compositor *compositor,
1171                         const struct weston_pointer_grab_interface *interface);
1172
1173 int
1174 weston_environment_get_fd(const char *env);
1175
1176 struct wl_list *
1177 weston_compositor_top(struct weston_compositor *compositor);
1178
1179 struct weston_surface *
1180 weston_surface_create(struct weston_compositor *compositor);
1181
1182 struct weston_view *
1183 weston_view_create(struct weston_surface *surface);
1184
1185 void
1186 weston_view_destroy(struct weston_view *view);
1187
1188 void
1189 weston_view_set_position(struct weston_view *view,
1190                          float x, float y);
1191
1192 void
1193 weston_view_set_transform_parent(struct weston_view *view,
1194                                  struct weston_view *parent);
1195
1196 int
1197 weston_view_is_mapped(struct weston_view *view);
1198
1199 void
1200 weston_view_schedule_repaint(struct weston_view *view);
1201
1202 int
1203 weston_surface_is_mapped(struct weston_surface *surface);
1204
1205 WL_EXPORT void
1206 weston_surface_set_size(struct weston_surface *surface,
1207                         int32_t width, int32_t height);
1208
1209 void
1210 weston_surface_schedule_repaint(struct weston_surface *surface);
1211
1212 void
1213 weston_surface_damage(struct weston_surface *surface);
1214
1215 void
1216 weston_view_damage_below(struct weston_view *view);
1217
1218 void
1219 weston_view_move_to_plane(struct weston_view *view,
1220                           struct weston_plane *plane);
1221 void
1222 weston_view_unmap(struct weston_view *view);
1223
1224 void
1225 weston_surface_unmap(struct weston_surface *surface);
1226
1227 struct weston_surface *
1228 weston_surface_get_main_surface(struct weston_surface *surface);
1229
1230 struct weston_buffer *
1231 weston_buffer_from_resource(struct wl_resource *resource);
1232
1233 void
1234 weston_buffer_reference(struct weston_buffer_reference *ref,
1235                         struct weston_buffer *buffer);
1236
1237 uint32_t
1238 weston_compositor_get_time(void);
1239
1240 int
1241 weston_compositor_init(struct weston_compositor *ec, struct wl_display *display,
1242                        int *argc, char *argv[], struct weston_config *config);
1243 void
1244 weston_compositor_shutdown(struct weston_compositor *ec);
1245 void
1246 weston_output_init_zoom(struct weston_output *output);
1247 void
1248 weston_output_update_zoom(struct weston_output *output);
1249 void
1250 weston_output_activate_zoom(struct weston_output *output);
1251 void
1252 weston_output_update_matrix(struct weston_output *output);
1253 void
1254 weston_output_move(struct weston_output *output, int x, int y);
1255 void
1256 weston_output_init(struct weston_output *output, struct weston_compositor *c,
1257                    int x, int y, int width, int height, uint32_t transform, int32_t scale);
1258 void
1259 weston_output_destroy(struct weston_output *output);
1260 void
1261 weston_output_transform_coordinate(struct weston_output *output,
1262                                    wl_fixed_t device_x, wl_fixed_t device_y,
1263                                    wl_fixed_t *x, wl_fixed_t *y);
1264
1265 void
1266 weston_seat_init(struct weston_seat *seat, struct weston_compositor *ec,
1267                  const char *seat_name);
1268 void
1269 weston_seat_init_pointer(struct weston_seat *seat);
1270 void
1271 weston_seat_release_pointer(struct weston_seat *seat);
1272 int
1273 weston_seat_init_keyboard(struct weston_seat *seat, struct xkb_keymap *keymap);
1274 void
1275 weston_seat_release_keyboard(struct weston_seat *seat);
1276 void
1277 weston_seat_init_touch(struct weston_seat *seat);
1278 void
1279 weston_seat_release_touch(struct weston_seat *seat);
1280 void
1281 weston_seat_repick(struct weston_seat *seat);
1282 void
1283 weston_seat_update_keymap(struct weston_seat *seat, struct xkb_keymap *keymap);
1284
1285 void
1286 weston_seat_release(struct weston_seat *seat);
1287 int
1288 weston_compositor_xkb_init(struct weston_compositor *ec,
1289                            struct xkb_rule_names *names);
1290 void
1291 weston_compositor_xkb_destroy(struct weston_compositor *ec);
1292
1293 /* String literal of spaces, the same width as the timestamp. */
1294 #define STAMP_SPACE "               "
1295
1296 void
1297 weston_log_file_open(const char *filename);
1298 void
1299 weston_log_file_close(void);
1300 int
1301 weston_vlog(const char *fmt, va_list ap);
1302 int
1303 weston_vlog_continue(const char *fmt, va_list ap);
1304 int
1305 weston_log(const char *fmt, ...)
1306         __attribute__ ((format (printf, 1, 2)));
1307 int
1308 weston_log_continue(const char *fmt, ...)
1309         __attribute__ ((format (printf, 1, 2)));
1310
1311 enum {
1312         TTY_ENTER_VT,
1313         TTY_LEAVE_VT
1314 };
1315
1316 struct tty *
1317 tty_create(struct weston_compositor *compositor, int tty_nr);
1318
1319 void
1320 tty_destroy(struct tty *tty);
1321
1322 void
1323 tty_reset(struct tty *tty);
1324
1325 int
1326 tty_activate_vt(struct tty *tty, int vt);
1327
1328 void
1329 screenshooter_create(struct weston_compositor *ec);
1330
1331 enum weston_screenshooter_outcome {
1332         WESTON_SCREENSHOOTER_SUCCESS,
1333         WESTON_SCREENSHOOTER_NO_MEMORY,
1334         WESTON_SCREENSHOOTER_BAD_BUFFER
1335 };
1336
1337 typedef void (*weston_screenshooter_done_func_t)(void *data,
1338                                 enum weston_screenshooter_outcome outcome);
1339 int
1340 weston_screenshooter_shoot(struct weston_output *output, struct weston_buffer *buffer,
1341                            weston_screenshooter_done_func_t done, void *data);
1342
1343 struct clipboard *
1344 clipboard_create(struct weston_seat *seat);
1345
1346 int
1347 text_backend_init(struct weston_compositor *ec);
1348
1349 struct weston_process;
1350 typedef void (*weston_process_cleanup_func_t)(struct weston_process *process,
1351                                             int status);
1352
1353 struct weston_process {
1354         pid_t pid;
1355         weston_process_cleanup_func_t cleanup;
1356         struct wl_list link;
1357 };
1358
1359 struct wl_client *
1360 weston_client_launch(struct weston_compositor *compositor,
1361                      struct weston_process *proc,
1362                      const char *path,
1363                      weston_process_cleanup_func_t cleanup);
1364
1365 struct wl_client *
1366 weston_client_start(struct weston_compositor *compositor, const char *path);
1367
1368 void
1369 weston_watch_process(struct weston_process *process);
1370
1371 struct weston_view_animation;
1372 typedef void (*weston_view_animation_done_func_t)(struct weston_view_animation *animation, void *data);
1373
1374 void
1375 weston_view_animation_destroy(struct weston_view_animation *animation);
1376
1377 struct weston_view_animation *
1378 weston_zoom_run(struct weston_view *view, float start, float stop,
1379                 weston_view_animation_done_func_t done, void *data);
1380
1381 struct weston_view_animation *
1382 weston_fade_run(struct weston_view *view,
1383                 float start, float end, float k,
1384                 weston_view_animation_done_func_t done, void *data);
1385
1386 struct weston_view_animation *
1387 weston_move_scale_run(struct weston_view *view, int dx, int dy,
1388                       float start, float end, int reverse,
1389                       weston_view_animation_done_func_t done, void *data);
1390
1391 void
1392 weston_fade_update(struct weston_view_animation *fade, float target);
1393
1394 struct weston_view_animation *
1395 weston_stable_fade_run(struct weston_view *front_view, float start,
1396                        struct weston_view *back_view, float end,
1397                        weston_view_animation_done_func_t done, void *data);
1398
1399 struct weston_view_animation *
1400 weston_slide_run(struct weston_view *view, float start, float stop,
1401                  weston_view_animation_done_func_t done, void *data);
1402
1403 void
1404 weston_surface_set_color(struct weston_surface *surface,
1405                          float red, float green, float blue, float alpha);
1406
1407 void
1408 weston_surface_destroy(struct weston_surface *surface);
1409
1410 int
1411 weston_output_switch_mode(struct weston_output *output, struct weston_mode *mode,
1412                         int32_t scale, enum weston_mode_switch_op op);
1413
1414 int
1415 noop_renderer_init(struct weston_compositor *ec);
1416
1417 struct weston_compositor *
1418 backend_init(struct wl_display *display, int *argc, char *argv[],
1419              struct weston_config *config);
1420
1421 int
1422 module_init(struct weston_compositor *compositor,
1423             int *argc, char *argv[]);
1424
1425 void
1426 weston_transformed_coord(int width, int height,
1427                          enum wl_output_transform transform,
1428                          int32_t scale,
1429                          float sx, float sy, float *bx, float *by);
1430 pixman_box32_t
1431 weston_transformed_rect(int width, int height,
1432                         enum wl_output_transform transform,
1433                         int32_t scale,
1434                         pixman_box32_t rect);
1435 void
1436 weston_transformed_region(int width, int height,
1437                           enum wl_output_transform transform,
1438                           int32_t scale,
1439                           pixman_region32_t *src, pixman_region32_t *dest);
1440
1441 void *
1442 weston_load_module(const char *name, const char *entrypoint);
1443
1444 #ifdef  __cplusplus
1445 }
1446 #endif
1447
1448 #endif