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