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