compositor: Track which plane a surface is on
[profile/ivi/weston.git] / 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 #include <pixman.h>
28 #include <xkbcommon/xkbcommon.h>
29 #include <wayland-server.h>
30
31 #include <GLES2/gl2.h>
32 #include <GLES2/gl2ext.h>
33 #include <EGL/egl.h>
34 #include <EGL/eglext.h>
35
36 #include "matrix.h"
37 #include "../shared/config-parser.h"
38 #include "weston-egl-ext.h"
39
40
41 struct weston_transform {
42         struct weston_matrix matrix;
43         struct wl_list link;
44 };
45
46 struct weston_surface;
47 struct shell_surface;
48 struct weston_seat;
49 struct weston_output;
50
51 enum weston_keyboard_modifier {
52         MODIFIER_CTRL = (1 << 0),
53         MODIFIER_ALT = (1 << 1),
54         MODIFIER_SUPER = (1 << 2),
55 };
56
57 enum weston_led {
58         LED_NUM_LOCK = (1 << 0),
59         LED_CAPS_LOCK = (1 << 1),
60         LED_SCROLL_LOCK = (1 << 2),
61 };
62
63 struct weston_mode {
64         uint32_t flags;
65         int32_t width, height;
66         uint32_t refresh;
67         struct wl_list link;
68 };
69
70 struct weston_shell_client {
71         void (*send_configure)(struct weston_surface *surface,
72                                uint32_t edges, int32_t width, int32_t height);
73 };
74
75 struct weston_shell_interface {
76         void *shell;                    /* either desktop or tablet */
77
78         struct shell_surface *(*create_shell_surface)(void *shell,
79                                                       struct weston_surface *surface,
80                                                       const struct weston_shell_client *client);
81
82         void (*set_toplevel)(struct shell_surface *shsurf);
83
84         void (*set_transient)(struct shell_surface *shsurf,
85                               struct shell_surface *pshsurf,
86                               int x, int y, uint32_t flags);
87         int (*move)(struct shell_surface *shsurf, struct weston_seat *ws);
88         int (*resize)(struct shell_surface *shsurf,
89                       struct weston_seat *ws, uint32_t edges);
90
91 };
92
93 struct weston_border {
94         int32_t left, right, top, bottom;
95 };
96
97 struct weston_animation {
98         void (*frame)(struct weston_animation *animation,
99                       struct weston_output *output, uint32_t msecs);
100         int frame_counter;
101         struct wl_list link;
102 };
103
104 struct weston_spring {
105         double k;
106         double friction;
107         double current;
108         double target;
109         double previous;
110         uint32_t timestamp;
111 };
112
113 enum {
114         ZOOM_FOCUS_POINTER,
115         ZOOM_FOCUS_TEXT
116 };
117
118 struct weston_fixed_point {
119         wl_fixed_t x, y;
120 };
121
122 struct weston_output_zoom {
123         int active;
124         uint32_t type;
125         float increment;
126         float level;
127         float max_level;
128         float trans_x, trans_y;
129         struct weston_animation animation_z;
130         struct weston_spring spring_z;
131         struct weston_animation animation_xy;
132         struct weston_spring spring_xy;
133         struct weston_fixed_point from;
134         struct weston_fixed_point to;
135         struct weston_fixed_point current;
136         struct weston_fixed_point text_cursor;
137 };
138
139 /* bit compatible with drm definitions. */
140 enum dpms_enum {
141         WESTON_DPMS_ON,
142         WESTON_DPMS_STANDBY,
143         WESTON_DPMS_SUSPEND,
144         WESTON_DPMS_OFF
145 };
146
147 struct weston_read_pixels {
148         void *data;
149         int x, y, width, height;
150         void (*done)(struct weston_read_pixels *read_pixels,
151                      struct weston_output *output);
152         struct wl_list link;
153 };
154
155 struct weston_output {
156         uint32_t id;
157
158         struct wl_list link;
159         struct wl_list resource_list;
160         struct wl_global *global;
161         struct weston_compositor *compositor;
162         struct weston_matrix matrix;
163         struct wl_list animation_list;
164         int32_t x, y, mm_width, mm_height;
165         struct weston_border border;
166         pixman_region32_t region;
167         pixman_region32_t previous_damage;
168         uint32_t flags;
169         int repaint_needed;
170         int repaint_scheduled;
171         struct weston_output_zoom zoom;
172         int dirty;
173         struct wl_list read_pixels_list;
174         struct wl_signal frame_signal;
175
176         char *make, *model;
177         uint32_t subpixel;
178         
179         struct weston_mode *current;
180         struct weston_mode *origin;
181         struct wl_list mode_list;
182
183         void (*repaint)(struct weston_output *output,
184                         pixman_region32_t *damage);
185         void (*destroy)(struct weston_output *output);
186         void (*assign_planes)(struct weston_output *output);
187         int (*switch_mode)(struct weston_output *output, struct weston_mode *mode);
188
189         /* backlight values are on 0-255 range, where higher is brighter */
190         uint32_t backlight_current;
191         void (*set_backlight)(struct weston_output *output, uint32_t value);
192         void (*set_dpms)(struct weston_output *output, enum dpms_enum level);
193 };
194
195 struct weston_xkb_info {
196         struct xkb_keymap *keymap;
197         int keymap_fd;
198         size_t keymap_size;
199         char *keymap_area;
200         xkb_mod_index_t ctrl_mod;
201         xkb_mod_index_t alt_mod;
202         xkb_mod_index_t super_mod;
203         xkb_led_index_t num_led;
204         xkb_led_index_t caps_led;
205         xkb_led_index_t scroll_led;
206 };
207
208 struct weston_seat {
209         struct wl_seat seat;
210         struct wl_pointer pointer;
211         int has_pointer;
212         struct wl_keyboard keyboard;
213         int has_keyboard;
214         struct wl_touch touch;
215         int has_touch;
216
217         struct weston_compositor *compositor;
218         struct weston_surface *sprite;
219         struct wl_listener sprite_destroy_listener;
220         struct weston_surface *drag_surface;
221         struct wl_listener drag_surface_destroy_listener;
222         int32_t hotspot_x, hotspot_y;
223         struct wl_list link;
224         enum weston_keyboard_modifier modifier_state;
225         struct wl_surface *saved_kbd_focus;
226         struct wl_listener saved_kbd_focus_listener;
227
228         uint32_t num_tp;
229         struct wl_surface *touch_focus;
230         struct wl_listener touch_focus_listener;
231         struct wl_resource *touch_focus_resource;
232         struct wl_listener touch_focus_resource_listener;
233
234         struct wl_listener new_drag_icon_listener;
235
236         void (*led_update)(struct weston_seat *ws, enum weston_led leds);
237
238         struct weston_xkb_info xkb_info;
239         struct {
240                 struct xkb_state *state;
241                 uint32_t mods_depressed;
242                 uint32_t mods_latched;
243                 uint32_t mods_locked;
244                 uint32_t group;
245                 enum weston_led leds;
246         } xkb_state;
247 };
248
249 struct weston_shader {
250         GLuint program;
251         GLuint vertex_shader, fragment_shader;
252         GLint proj_uniform;
253         GLint tex_uniform;
254         GLint alpha_uniform;
255         GLint color_uniform;
256         GLint texwidth_uniform;
257         GLint opaque_uniform;
258 };
259
260 enum {
261         WESTON_COMPOSITOR_ACTIVE,
262         WESTON_COMPOSITOR_IDLE,         /* shell->unlock called on activity */
263         WESTON_COMPOSITOR_SLEEPING      /* no rendering, no frame events */
264 };
265
266 struct weston_layer {
267         struct wl_list surface_list;
268         struct wl_list link;
269 };
270
271 struct weston_compositor {
272         struct wl_shm *shm;
273         struct wl_signal destroy_signal;
274
275         EGLDisplay egl_display;
276         EGLContext egl_context;
277         EGLConfig egl_config;
278         GLuint fbo;
279         struct weston_shader texture_shader;
280         struct weston_shader solid_shader;
281         struct weston_shader *current_shader;
282         struct wl_display *wl_display;
283         struct weston_shell_interface shell_interface;
284
285         struct wl_signal activate_signal;
286         struct wl_signal lock_signal;
287         struct wl_signal unlock_signal;
288
289         struct wl_event_loop *input_loop;
290         struct wl_event_source *input_loop_source;
291
292         /* There can be more than one, but not right now... */
293         struct weston_seat *seat;
294
295         struct weston_layer fade_layer;
296         struct weston_layer cursor_layer;
297
298         struct wl_list output_list;
299         struct wl_list seat_list;
300         struct wl_list layer_list;
301         struct wl_list surface_list;
302         struct wl_list key_binding_list;
303         struct wl_list button_binding_list;
304         struct wl_list axis_binding_list;
305         struct {
306                 struct weston_spring spring;
307                 struct weston_animation animation;
308                 struct weston_surface *surface;
309         } fade;
310
311         uint32_t state;
312         struct wl_event_source *idle_source;
313         uint32_t idle_inhibit;
314         int option_idle_time;           /* default timeout, s */
315         int idle_time;                  /* effective timeout, s */
316
317         /* Repaint state. */
318         struct wl_array vertices, indices;
319         pixman_region32_t damage;
320
321         uint32_t focus;
322
323         PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC
324                 image_target_renderbuffer_storage;
325         PFNGLEGLIMAGETARGETTEXTURE2DOESPROC image_target_texture_2d;
326         PFNEGLCREATEIMAGEKHRPROC create_image;
327         PFNEGLDESTROYIMAGEKHRPROC destroy_image;
328
329         int has_unpack_subimage;
330         GLenum read_format;
331
332         PFNEGLBINDWAYLANDDISPLAYWL bind_display;
333         PFNEGLUNBINDWAYLANDDISPLAYWL unbind_display;
334         int has_bind_display;
335
336         void (*destroy)(struct weston_compositor *ec);
337         int (*authenticate)(struct weston_compositor *c, uint32_t id);
338
339         void (*ping_handler)(struct weston_surface *surface, uint32_t serial);
340
341         int launcher_sock;
342
343         uint32_t output_id_pool;
344
345         struct xkb_rule_names xkb_names;
346         struct xkb_context *xkb_context;
347         struct weston_xkb_info xkb_info;
348 };
349
350 enum weston_output_flags {
351         WL_OUTPUT_FLIPPED = 0x01
352 };
353
354 struct weston_region {
355         struct wl_resource resource;
356         pixman_region32_t region;
357 };
358
359 /* Using weston_surface transformations
360  *
361  * To add a transformation to a surface, create a struct weston_transform, and
362  * add it to the list surface->geometry.transformation_list. Whenever you
363  * change the list, anything under surface->geometry, or anything in the
364  * weston_transforms linked into the list, you must set
365  * surface->geometry.dirty = 1.
366  *
367  * The order in the list defines the order of transformations. Let the list
368  * contain the transformation matrices M1, ..., Mn as head to tail. The
369  * transformation is applied to surface-local coordinate vector p as
370  *    P = Mn * ... * M2 * M1 * p
371  * to produce the global coordinate vector P. The total transform
372  *    Mn * ... * M2 * M1
373  * is cached in surface->transform.matrix, and the inverse of it in
374  * surface->transform.inverse.
375  *
376  * The list always contains surface->transform.position transformation, which
377  * is the translation by surface->geometry.x and y.
378  *
379  * If you want to apply a transformation in local coordinates, add your
380  * weston_transform to the head of the list. If you want to apply a
381  * transformation in global coordinates, add it to the tail of the list.
382  */
383
384 enum {
385         WESTON_PLANE_PRIMARY
386 };
387
388 struct weston_surface {
389         struct wl_surface surface;
390         struct weston_compositor *compositor;
391         GLuint texture;
392         pixman_region32_t clip;
393         pixman_region32_t damage;
394         pixman_region32_t opaque;
395         pixman_region32_t input;
396         int32_t pitch;
397         struct wl_list link;
398         struct wl_list layer_link;
399         struct weston_shader *shader;
400         GLfloat color[4];
401         GLfloat opaque_rect[4];
402         GLfloat alpha;
403         int blend;
404         int plane;
405
406         /* Surface geometry state, mutable.
407          * If you change anything, set dirty = 1.
408          * That includes the transformations referenced from the list.
409          */
410         struct {
411                 GLfloat x, y; /* surface translation on display */
412                 int32_t width, height;
413
414                 /* struct weston_transform */
415                 struct wl_list transformation_list;
416
417                 int dirty;
418         } geometry;
419
420         /* State derived from geometry state, read-only.
421          * This is updated by weston_surface_update_transform().
422          */
423         struct {
424                 pixman_region32_t boundingbox;
425                 pixman_region32_t opaque;
426
427                 /* matrix and inverse are used only if enabled = 1.
428                  * If enabled = 0, use x, y, width, height directly.
429                  */
430                 int enabled;
431                 struct weston_matrix matrix;
432                 struct weston_matrix inverse;
433
434                 struct weston_transform position; /* matrix from x, y */
435         } transform;
436
437         /*
438          * Which output to vsync this surface to.
439          * Used to determine, whether to send or queue frame events.
440          * Must be NULL, if 'link' is not in weston_compositor::surface_list.
441          */
442         struct weston_output *output;
443
444         /*
445          * A more complete representation of all outputs this surface is
446          * displayed on.
447          */
448         uint32_t output_mask;
449
450         struct wl_list frame_callback_list;
451
452         EGLImageKHR image;
453
454         struct wl_buffer *buffer;
455         struct wl_listener buffer_destroy_listener;
456
457         /*
458          * If non-NULL, this function will be called on surface::attach after
459          * a new buffer has been set up for this surface. The integer params
460          * are the sx and sy paramerters supplied to surface::attach .
461          */
462         void (*configure)(struct weston_surface *es, int32_t sx, int32_t sy);
463         void *private;
464 };
465
466 void
467 weston_surface_update_transform(struct weston_surface *surface);
468
469 void
470 weston_surface_to_global_fixed(struct weston_surface *surface,
471                                wl_fixed_t sx, wl_fixed_t sy,
472                                wl_fixed_t *x, wl_fixed_t *y);
473 void
474 weston_surface_to_global_float(struct weston_surface *surface,
475                                GLfloat sx, GLfloat sy, GLfloat *x, GLfloat *y);
476
477 void
478 weston_surface_from_global(struct weston_surface *surface,
479                            int32_t x, int32_t y, int32_t *sx, int32_t *sy);
480 void
481 weston_surface_from_global_fixed(struct weston_surface *surface,
482                                  wl_fixed_t x, wl_fixed_t y,
483                                  wl_fixed_t *sx, wl_fixed_t *sy);
484
485 void
486 weston_spring_init(struct weston_spring *spring,
487                    double k, double current, double target);
488 void
489 weston_spring_update(struct weston_spring *spring, uint32_t msec);
490 int
491 weston_spring_done(struct weston_spring *spring);
492
493 void
494 weston_surface_activate(struct weston_surface *surface,
495                         struct weston_seat *seat);
496 void
497 weston_surface_draw(struct weston_surface *es,
498                     struct weston_output *output, pixman_region32_t *damage);
499
500 void
501 notify_motion(struct wl_seat *seat, uint32_t time,
502               wl_fixed_t x, wl_fixed_t y);
503 void
504 notify_button(struct wl_seat *seat, uint32_t time, int32_t button,
505               enum wl_pointer_button_state state);
506 void
507 notify_axis(struct wl_seat *seat, uint32_t time, uint32_t axis,
508             wl_fixed_t value);
509 void
510 notify_key(struct wl_seat *seat, uint32_t time, uint32_t key,
511            enum wl_keyboard_key_state state);
512
513 void
514 notify_pointer_focus(struct wl_seat *seat, struct weston_output *output,
515                      wl_fixed_t x, wl_fixed_t y);
516
517 void
518 notify_keyboard_focus(struct wl_seat *seat, struct wl_array *keys);
519
520 void
521 notify_touch(struct wl_seat *seat, uint32_t time, int touch_id,
522              wl_fixed_t x, wl_fixed_t y, int touch_type);
523
524 void
525 weston_layer_init(struct weston_layer *layer, struct wl_list *below);
526
527 void
528 weston_output_finish_frame(struct weston_output *output, int msecs);
529 void
530 weston_output_damage(struct weston_output *output);
531 void
532 weston_output_do_read_pixels(struct weston_output *output);
533 void
534 weston_compositor_schedule_repaint(struct weston_compositor *compositor);
535 void
536 weston_compositor_fade(struct weston_compositor *compositor, float tint);
537 void
538 weston_compositor_damage_all(struct weston_compositor *compositor);
539 void
540 weston_compositor_unlock(struct weston_compositor *compositor);
541 void
542 weston_compositor_wake(struct weston_compositor *compositor);
543 void
544 weston_compositor_activity(struct weston_compositor *compositor);
545 void
546 weston_compositor_update_drag_surfaces(struct weston_compositor *compositor);
547
548
549 struct weston_binding;
550 typedef void (*weston_key_binding_handler_t)(struct wl_seat *seat,
551                                              uint32_t time, uint32_t key,
552                                              void *data);
553 struct weston_binding *
554 weston_compositor_add_key_binding(struct weston_compositor *compositor,
555                                   uint32_t key,
556                                   enum weston_keyboard_modifier modifier,
557                                   weston_key_binding_handler_t binding,
558                                   void *data);
559
560 typedef void (*weston_button_binding_handler_t)(struct wl_seat *seat,
561                                                 uint32_t time, uint32_t button,
562                                                 void *data);
563 struct weston_binding *
564 weston_compositor_add_button_binding(struct weston_compositor *compositor,
565                                      uint32_t button,
566                                      enum weston_keyboard_modifier modifier,
567                                      weston_button_binding_handler_t binding,
568                                      void *data);
569
570 typedef void (*weston_axis_binding_handler_t)(struct wl_seat *seat,
571                                               uint32_t time, uint32_t axis,
572                                               wl_fixed_t value, void *data);
573 struct weston_binding *
574 weston_compositor_add_axis_binding(struct weston_compositor *compositor,
575                                    uint32_t axis,
576                                    enum weston_keyboard_modifier modifier,
577                                    weston_axis_binding_handler_t binding,
578                                    void *data);
579 void
580 weston_binding_destroy(struct weston_binding *binding);
581
582 void
583 weston_binding_list_destroy_all(struct wl_list *list);
584
585 void
586 weston_compositor_run_key_binding(struct weston_compositor *compositor,
587                                   struct weston_seat *seat, uint32_t time,
588                                   uint32_t key,
589                                   enum wl_keyboard_key_state state);
590 void
591 weston_compositor_run_button_binding(struct weston_compositor *compositor,
592                                      struct weston_seat *seat, uint32_t time,
593                                      uint32_t button,
594                                      enum wl_pointer_button_state value);
595 void
596 weston_compositor_run_axis_binding(struct weston_compositor *compositor,
597                                    struct weston_seat *seat, uint32_t time,
598                                    uint32_t axis, int32_t value);
599
600 int
601 weston_environment_get_fd(const char *env);
602
603 struct wl_list *
604 weston_compositor_top(struct weston_compositor *compositor);
605
606 struct weston_surface *
607 weston_surface_create(struct weston_compositor *compositor);
608
609 void
610 weston_surface_configure(struct weston_surface *surface,
611                          GLfloat x, GLfloat y, int width, int height);
612
613 void
614 weston_surface_restack(struct weston_surface *surface, struct wl_list *below);
615
616 void
617 weston_surface_set_position(struct weston_surface *surface,
618                             GLfloat x, GLfloat y);
619
620 int
621 weston_surface_is_mapped(struct weston_surface *surface);
622
623 void
624 weston_surface_assign_output(struct weston_surface *surface);
625
626 void
627 weston_surface_damage(struct weston_surface *surface);
628
629 void
630 weston_surface_damage_below(struct weston_surface *surface);
631
632 void
633 weston_buffer_post_release(struct wl_buffer *buffer);
634
635 uint32_t
636 weston_compositor_get_time(void);
637
638 int
639 weston_compositor_init(struct weston_compositor *ec, struct wl_display *display,
640                        int argc, char *argv[], const char *config_file);
641 void
642 weston_compositor_shutdown(struct weston_compositor *ec);
643 void
644 weston_text_cursor_position_notify(struct weston_surface *surface,
645                                                 wl_fixed_t x, wl_fixed_t y);
646 void
647 weston_output_init_zoom(struct weston_output *output);
648 void
649 weston_output_update_zoom(struct weston_output *output, uint32_t type);
650 void
651 weston_output_update_matrix(struct weston_output *output);
652 void
653 weston_output_move(struct weston_output *output, int x, int y);
654 void
655 weston_output_init(struct weston_output *output, struct weston_compositor *c,
656                    int x, int y, int width, int height, uint32_t flags);
657 void
658 weston_output_destroy(struct weston_output *output);
659
660 void
661 weston_seat_init(struct weston_seat *seat, struct weston_compositor *ec);
662 void
663 weston_seat_init_pointer(struct weston_seat *seat);
664 void
665 weston_seat_init_keyboard(struct weston_seat *seat, struct xkb_keymap *keymap);
666 void
667 weston_seat_init_touch(struct weston_seat *seat);
668
669 void
670 weston_seat_release(struct weston_seat *seat);
671
672 enum {
673         TTY_ENTER_VT,
674         TTY_LEAVE_VT
675 };
676
677 typedef void (*tty_vt_func_t)(struct weston_compositor *compositor, int event);
678
679 struct tty *
680 tty_create(struct weston_compositor *compositor,
681            tty_vt_func_t vt_func, int tty_nr);
682
683 void
684 tty_destroy(struct tty *tty);
685
686 int
687 tty_activate_vt(struct tty *tty, int vt);
688
689 void
690 screenshooter_create(struct weston_compositor *ec);
691
692 struct clipboard *
693 clipboard_create(struct weston_seat *seat);
694
695 void
696 text_cursor_position_notifier_create(struct weston_compositor *ec);
697
698 struct weston_process;
699 typedef void (*weston_process_cleanup_func_t)(struct weston_process *process,
700                                             int status);
701
702 struct weston_process {
703         pid_t pid;
704         weston_process_cleanup_func_t cleanup;
705         struct wl_list link;
706 };
707
708 struct wl_client *
709 weston_client_launch(struct weston_compositor *compositor,
710                      struct weston_process *proc,
711                      const char *path,
712                      weston_process_cleanup_func_t cleanup);
713
714 void
715 weston_watch_process(struct weston_process *process);
716
717 int
718 weston_xserver_init(struct weston_compositor *compositor);
719
720 struct weston_zoom;
721 typedef void (*weston_zoom_done_func_t)(struct weston_zoom *zoom, void *data);
722
723 struct weston_zoom *
724 weston_zoom_run(struct weston_surface *surface, GLfloat start, GLfloat stop,
725                 weston_zoom_done_func_t done, void *data);
726
727 struct weston_fade;
728 typedef void (*weston_fade_done_func_t)(struct weston_fade *fade, void *data);
729
730 struct weston_fade *
731 weston_fade_run(struct weston_surface *surface,
732                 weston_fade_done_func_t done, void *data);
733
734
735 void
736 weston_surface_set_color(struct weston_surface *surface,
737                          GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
738
739 void
740 weston_surface_destroy(struct weston_surface *surface);
741
742 struct weston_compositor *
743 backend_init(struct wl_display *display, int argc, char *argv[],
744              const char *config_file);
745
746 int
747 weston_output_switch_mode(struct weston_output *output, struct weston_mode *mode);
748
749 #endif