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weston/libweston/compositor.h

1799 lines
50 KiB

/*
* Copyright © 2008-2011 Kristian Høgsberg
* Copyright © 2012 Collabora, Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _WAYLAND_SYSTEM_COMPOSITOR_H_
#define _WAYLAND_SYSTEM_COMPOSITOR_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdbool.h>
#include <time.h>
#include <pixman.h>
#include <xkbcommon/xkbcommon.h>
#define WL_HIDE_DEPRECATED
#include <wayland-server.h>
#include "version.h"
#include "matrix.h"
#include "config-parser.h"
#include "zalloc.h"
#include "timeline-object.h"
struct weston_transform {
struct weston_matrix matrix;
struct wl_list link;
};
struct weston_surface;
struct weston_buffer;
struct shell_surface;
struct weston_seat;
struct weston_output;
struct input_method;
struct weston_pointer;
struct linux_dmabuf_buffer;
struct weston_recorder;
struct weston_pointer_constraint;
enum weston_keyboard_modifier {
MODIFIER_CTRL = (1 << 0),
MODIFIER_ALT = (1 << 1),
MODIFIER_SUPER = (1 << 2),
MODIFIER_SHIFT = (1 << 3),
};
enum weston_keyboard_locks {
WESTON_NUM_LOCK = (1 << 0),
WESTON_CAPS_LOCK = (1 << 1),
};
enum weston_led {
LED_NUM_LOCK = (1 << 0),
LED_CAPS_LOCK = (1 << 1),
LED_SCROLL_LOCK = (1 << 2),
};
struct weston_mode {
uint32_t flags;
int32_t width, height;
uint32_t refresh;
struct wl_list link;
};
struct weston_shell_client {
void (*send_configure)(struct weston_surface *surface, int32_t width, int32_t height);
void (*send_position)(struct weston_surface *surface, int32_t x, int32_t y);
};
struct weston_shell_interface {
void *shell; /* either desktop or tablet */
struct shell_surface *(*create_shell_surface)(void *shell,
struct weston_surface *surface,
const struct weston_shell_client *client);
void (*set_toplevel)(struct shell_surface *shsurf);
void (*set_transient)(struct shell_surface *shsurf,
struct weston_surface *parent,
int x, int y, uint32_t flags);
void (*set_fullscreen)(struct shell_surface *shsurf,
uint32_t method,
uint32_t framerate,
struct weston_output *output);
void (*set_xwayland)(struct shell_surface *shsurf,
int x, int y, uint32_t flags);
int (*move)(struct shell_surface *shsurf, struct weston_pointer *pointer);
int (*resize)(struct shell_surface *shsurf,
struct weston_pointer *pointer, uint32_t edges);
void (*set_title)(struct shell_surface *shsurf,
const char *title);
void (*set_window_geometry)(struct shell_surface *shsurf,
int32_t x, int32_t y,
int32_t width, int32_t height);
void (*set_maximized)(struct shell_surface *shsurf);
void (*set_pid)(struct shell_surface *shsurf, pid_t pid);
void (*get_output_work_area)(void *shell, struct weston_output *output, pixman_rectangle32_t *area);
};
struct weston_animation {
void (*frame)(struct weston_animation *animation,
struct weston_output *output, uint32_t msecs);
int frame_counter;
struct wl_list link;
};
enum {
WESTON_SPRING_OVERSHOOT,
WESTON_SPRING_CLAMP,
WESTON_SPRING_BOUNCE
};
struct weston_spring {
double k;
double friction;
double current;
double target;
double previous;
double min, max;
uint32_t timestamp;
uint32_t clip;
};
struct weston_output_zoom {
bool active;
float increment;
float level;
float max_level;
float trans_x, trans_y;
struct {
double x, y;
} current;
struct weston_seat *seat;
struct weston_animation animation_z;
struct weston_spring spring_z;
struct wl_listener motion_listener;
};
/* bit compatible with drm definitions. */
enum dpms_enum {
WESTON_DPMS_ON,
WESTON_DPMS_STANDBY,
WESTON_DPMS_SUSPEND,
WESTON_DPMS_OFF
};
struct weston_output {
uint32_t id;
char *name;
void *renderer_state;
struct wl_list link;
struct wl_list resource_list;
struct wl_global *global;
struct weston_compositor *compositor;
/** From global to output buffer coordinates. */
struct weston_matrix matrix;
/** From output buffer to global coordinates. */
struct weston_matrix inverse_matrix;
struct wl_list animation_list;
int32_t x, y, width, height;
int32_t mm_width, mm_height;
/** Output area in global coordinates, simple rect */
pixman_region32_t region;
pixman_region32_t previous_damage;
int repaint_needed;
int repaint_scheduled;
struct wl_event_source *repaint_timer;
struct weston_output_zoom zoom;
int dirty;
struct wl_signal frame_signal;
struct wl_signal destroy_signal;
int move_x, move_y;
uint32_t frame_time; /* presentation timestamp in milliseconds */
uint64_t msc; /* media stream counter */
int disable_planes;
int destroying;
struct wl_list feedback_list;
char *make, *model, *serial_number;
uint32_t subpixel;
uint32_t transform;
int32_t native_scale;
int32_t current_scale;
int32_t original_scale;
struct weston_mode *native_mode;
struct weston_mode *current_mode;
struct weston_mode *original_mode;
struct wl_list mode_list;
void (*start_repaint_loop)(struct weston_output *output);
int (*repaint)(struct weston_output *output,
pixman_region32_t *damage);
void (*destroy)(struct weston_output *output);
void (*assign_planes)(struct weston_output *output);
int (*switch_mode)(struct weston_output *output, struct weston_mode *mode);
/* backlight values are on 0-255 range, where higher is brighter */
int32_t backlight_current;
void (*set_backlight)(struct weston_output *output, uint32_t value);
void (*set_dpms)(struct weston_output *output, enum dpms_enum level);
int connection_internal;
uint16_t gamma_size;
void (*set_gamma)(struct weston_output *output,
uint16_t size,
uint16_t *r,
uint16_t *g,
uint16_t *b);
struct weston_timeline_object timeline;
};
enum weston_pointer_motion_mask {
WESTON_POINTER_MOTION_ABS = 1 << 0,
WESTON_POINTER_MOTION_REL = 1 << 1,
WESTON_POINTER_MOTION_REL_UNACCEL = 1 << 2,
};
struct weston_pointer_motion_event {
uint32_t mask;
uint64_t time_usec;
double x;
double y;
double dx;
double dy;
double dx_unaccel;
double dy_unaccel;
};
struct weston_pointer_axis_event {
uint32_t axis;
double value;
bool has_discrete;
int32_t discrete;
};
struct weston_pointer_grab;
struct weston_pointer_grab_interface {
void (*focus)(struct weston_pointer_grab *grab);
void (*motion)(struct weston_pointer_grab *grab, uint32_t time,
struct weston_pointer_motion_event *event);
void (*button)(struct weston_pointer_grab *grab,
uint32_t time, uint32_t button, uint32_t state);
void (*axis)(struct weston_pointer_grab *grab,
uint32_t time,
struct weston_pointer_axis_event *event);
void (*axis_source)(struct weston_pointer_grab *grab, uint32_t source);
void (*frame)(struct weston_pointer_grab *grab);
void (*cancel)(struct weston_pointer_grab *grab);
};
struct weston_pointer_grab {
const struct weston_pointer_grab_interface *interface;
struct weston_pointer *pointer;
};
struct weston_keyboard_grab;
struct weston_keyboard_grab_interface {
void (*key)(struct weston_keyboard_grab *grab, uint32_t time,
uint32_t key, uint32_t state);
void (*modifiers)(struct weston_keyboard_grab *grab, uint32_t serial,
uint32_t mods_depressed, uint32_t mods_latched,
uint32_t mods_locked, uint32_t group);
void (*cancel)(struct weston_keyboard_grab *grab);
};
struct weston_keyboard_grab {
const struct weston_keyboard_grab_interface *interface;
struct weston_keyboard *keyboard;
};
struct weston_touch_grab;
struct weston_touch_grab_interface {
void (*down)(struct weston_touch_grab *grab,
uint32_t time,
int touch_id,
wl_fixed_t sx,
wl_fixed_t sy);
void (*up)(struct weston_touch_grab *grab,
uint32_t time,
int touch_id);
void (*motion)(struct weston_touch_grab *grab,
uint32_t time,
int touch_id,
wl_fixed_t sx,
wl_fixed_t sy);
void (*frame)(struct weston_touch_grab *grab);
void (*cancel)(struct weston_touch_grab *grab);
};
struct weston_touch_grab {
const struct weston_touch_grab_interface *interface;
struct weston_touch *touch;
};
struct weston_data_offer {
struct wl_resource *resource;
struct weston_data_source *source;
struct wl_listener source_destroy_listener;
uint32_t dnd_actions;
enum wl_data_device_manager_dnd_action preferred_dnd_action;
bool in_ask;
};
struct weston_data_source {
struct wl_resource *resource;
struct wl_signal destroy_signal;
struct wl_array mime_types;
struct weston_data_offer *offer;
struct weston_seat *seat;
bool accepted;
bool actions_set;
uint32_t dnd_actions;
enum wl_data_device_manager_dnd_action current_dnd_action;
enum wl_data_device_manager_dnd_action compositor_action;
void (*accept)(struct weston_data_source *source,
uint32_t serial, const char *mime_type);
void (*send)(struct weston_data_source *source,
const char *mime_type, int32_t fd);
void (*cancel)(struct weston_data_source *source);
};
struct weston_pointer_client {
struct wl_list link;
struct wl_client *client;
struct wl_list pointer_resources;
struct wl_list relative_pointer_resources;
};
struct weston_pointer {
struct weston_seat *seat;
struct wl_list pointer_clients;
struct weston_view *focus;
struct weston_pointer_client *focus_client;
uint32_t focus_serial;
struct wl_listener focus_view_listener;
struct wl_listener focus_resource_listener;
struct wl_signal focus_signal;
struct wl_signal motion_signal;
struct wl_signal destroy_signal;
struct weston_view *sprite;
struct wl_listener sprite_destroy_listener;
int32_t hotspot_x, hotspot_y;
struct weston_pointer_grab *grab;
struct weston_pointer_grab default_grab;
wl_fixed_t grab_x, grab_y;
uint32_t grab_button;
uint32_t grab_serial;
uint32_t grab_time;
wl_fixed_t x, y;
wl_fixed_t sx, sy;
uint32_t button_count;
struct wl_listener output_destroy_listener;
};
struct weston_touch {
struct weston_seat *seat;
struct wl_list resource_list;
struct wl_list focus_resource_list;
struct weston_view *focus;
struct wl_listener focus_view_listener;
struct wl_listener focus_resource_listener;
uint32_t focus_serial;
struct wl_signal focus_signal;
uint32_t num_tp;
struct weston_touch_grab *grab;
struct weston_touch_grab default_grab;
int grab_touch_id;
wl_fixed_t grab_x, grab_y;
uint32_t grab_serial;
uint32_t grab_time;
};
void
weston_pointer_motion_to_abs(struct weston_pointer *pointer,
struct weston_pointer_motion_event *event,
wl_fixed_t *x, wl_fixed_t *y);
struct weston_pointer *
weston_pointer_create(struct weston_seat *seat);
void
weston_pointer_destroy(struct weston_pointer *pointer);
void
weston_pointer_send_axis(struct weston_pointer *pointer,
uint32_t time,
struct weston_pointer_axis_event *event);
void
weston_pointer_send_axis_source(struct weston_pointer *pointer,
uint32_t source);
void
weston_pointer_send_frame(struct weston_pointer *pointer);
void
weston_pointer_set_focus(struct weston_pointer *pointer,
struct weston_view *view,
wl_fixed_t sx, wl_fixed_t sy);
void
weston_pointer_clear_focus(struct weston_pointer *pointer);
void
weston_pointer_start_grab(struct weston_pointer *pointer,
struct weston_pointer_grab *grab);
void
weston_pointer_end_grab(struct weston_pointer *pointer);
void
weston_pointer_clamp(struct weston_pointer *pointer,
wl_fixed_t *fx, wl_fixed_t *fy);
void
weston_pointer_move(struct weston_pointer *pointer,
struct weston_pointer_motion_event *event);
void
weston_pointer_set_default_grab(struct weston_pointer *pointer,
const struct weston_pointer_grab_interface *interface);
void
weston_pointer_constraint_destroy(struct weston_pointer_constraint *constraint);
struct weston_keyboard *
weston_keyboard_create(void);
void
weston_keyboard_destroy(struct weston_keyboard *keyboard);
void
weston_keyboard_set_focus(struct weston_keyboard *keyboard,
struct weston_surface *surface);
void
weston_keyboard_start_grab(struct weston_keyboard *device,
struct weston_keyboard_grab *grab);
void
weston_keyboard_end_grab(struct weston_keyboard *keyboard);
int
/*
* 'mask' and 'value' should be a bitwise mask of one or more
* valued of the weston_keyboard_locks enum.
*/
weston_keyboard_set_locks(struct weston_keyboard *keyboard,
uint32_t mask, uint32_t value);
struct weston_touch *
weston_touch_create(void);
void
weston_touch_destroy(struct weston_touch *touch);
void
weston_touch_set_focus(struct weston_touch *touch,
struct weston_view *view);
void
weston_touch_start_grab(struct weston_touch *device,
struct weston_touch_grab *grab);
void
weston_touch_end_grab(struct weston_touch *touch);
void
wl_data_device_set_keyboard_focus(struct weston_seat *seat);
int
wl_data_device_manager_init(struct wl_display *display);
void
weston_seat_set_selection(struct weston_seat *seat,
struct weston_data_source *source, uint32_t serial);
void
weston_seat_send_selection(struct weston_seat *seat, struct wl_client *client);
int
weston_pointer_start_drag(struct weston_pointer *pointer,
struct weston_data_source *source,
struct weston_surface *icon,
struct wl_client *client);
int
weston_touch_start_drag(struct weston_touch *touch,
struct weston_data_source *source,
struct weston_surface *icon,
struct wl_client *client);
struct weston_xkb_info {
struct xkb_keymap *keymap;
int keymap_fd;
size_t keymap_size;
char *keymap_area;
int32_t ref_count;
xkb_mod_index_t shift_mod;
xkb_mod_index_t caps_mod;
xkb_mod_index_t ctrl_mod;
xkb_mod_index_t alt_mod;
xkb_mod_index_t mod2_mod;
xkb_mod_index_t mod3_mod;
xkb_mod_index_t super_mod;
xkb_mod_index_t mod5_mod;
xkb_led_index_t num_led;
xkb_led_index_t caps_led;
xkb_led_index_t scroll_led;
};
struct weston_keyboard {
struct weston_seat *seat;
struct wl_list resource_list;
struct wl_list focus_resource_list;
struct weston_surface *focus;
struct wl_listener focus_resource_listener;
uint32_t focus_serial;
struct wl_signal focus_signal;
struct weston_keyboard_grab *grab;
struct weston_keyboard_grab default_grab;
uint32_t grab_key;
uint32_t grab_serial;
uint32_t grab_time;
struct wl_array keys;
struct {
uint32_t mods_depressed;
uint32_t mods_latched;
uint32_t mods_locked;
uint32_t group;
} modifiers;
struct weston_keyboard_grab input_method_grab;
struct wl_resource *input_method_resource;
struct weston_xkb_info *xkb_info;
struct {
struct xkb_state *state;
enum weston_led leds;
} xkb_state;
struct xkb_keymap *pending_keymap;
};
struct weston_seat {
struct wl_list base_resource_list;
struct wl_global *global;
struct weston_pointer *pointer_state;
struct weston_keyboard *keyboard_state;
struct weston_touch *touch_state;
int pointer_device_count;
int keyboard_device_count;
int touch_device_count;
struct weston_output *output; /* constraint */
struct wl_signal destroy_signal;
struct wl_signal updated_caps_signal;
struct weston_compositor *compositor;
struct wl_list link;
enum weston_keyboard_modifier modifier_state;
struct weston_surface *saved_kbd_focus;
struct wl_listener saved_kbd_focus_listener;
struct wl_list drag_resource_list;
uint32_t selection_serial;
struct weston_data_source *selection_data_source;
struct wl_listener selection_data_source_listener;
struct wl_signal selection_signal;
void (*led_update)(struct weston_seat *ws, enum weston_led leds);
struct input_method *input_method;
char *seat_name;
};
enum {
WESTON_COMPOSITOR_ACTIVE, /* normal rendering and events */
WESTON_COMPOSITOR_IDLE, /* shell->unlock called on activity */
WESTON_COMPOSITOR_OFFSCREEN, /* no rendering, no frame events */
WESTON_COMPOSITOR_SLEEPING /* same as offscreen, but also set dpms
* to off */
};
struct weston_layer_entry {
struct wl_list link;
struct weston_layer *layer;
};
struct weston_layer {
struct weston_layer_entry view_list;
struct wl_list link;
pixman_box32_t mask;
};
struct weston_plane {
struct weston_compositor *compositor;
pixman_region32_t damage; /**< in global coords */
pixman_region32_t clip;
int32_t x, y;
struct wl_list link;
};
struct weston_renderer {
int (*read_pixels)(struct weston_output *output,
pixman_format_code_t format, void *pixels,
uint32_t x, uint32_t y,
uint32_t width, uint32_t height);
void (*repaint_output)(struct weston_output *output,
pixman_region32_t *output_damage);
void (*flush_damage)(struct weston_surface *surface);
void (*attach)(struct weston_surface *es, struct weston_buffer *buffer);
void (*surface_set_color)(struct weston_surface *surface,
float red, float green,
float blue, float alpha);
void (*destroy)(struct weston_compositor *ec);
/** See weston_surface_get_content_size() */
void (*surface_get_content_size)(struct weston_surface *surface,
int *width, int *height);
/** See weston_surface_copy_content() */
int (*surface_copy_content)(struct weston_surface *surface,
void *target, size_t size,
int src_x, int src_y,
int width, int height);
/** See weston_compositor_import_dmabuf() */
bool (*import_dmabuf)(struct weston_compositor *ec,
struct linux_dmabuf_buffer *buffer);
};
enum weston_capability {
/* backend/renderer supports arbitrary rotation */
WESTON_CAP_ROTATION_ANY = 0x0001,
/* screencaptures need to be y-flipped */
WESTON_CAP_CAPTURE_YFLIP = 0x0002,
/* backend/renderer has a separate cursor plane */
WESTON_CAP_CURSOR_PLANE = 0x0004,
/* backend supports setting arbitrary resolutions */
WESTON_CAP_ARBITRARY_MODES = 0x0008,
/* renderer supports weston_view_set_mask() clipping */
WESTON_CAP_VIEW_CLIP_MASK = 0x0010,
};
/* Configuration struct for an output.
*
* This struct is used to pass the configuration for an output
* to the compositor backend when creating a new output.
* The backend can subclass this struct to handle backend
* specific data.
*/
struct weston_backend_output_config {
uint32_t transform;
uint32_t width;
uint32_t height;
uint32_t scale;
};
/* Configuration struct for a backend.
*
* This struct carries the configuration for a backend, and it's
* passed to the backend's init entry point. The backend will
* likely want to subclass this in order to handle backend specific
* data.
*
* NOTE: Alternate designs were proposed (Feb 2016) for using opaque
* structures[1] and for section+key/value getter/setters[2]. The rationale
* for selecting the transparent structure design is based on several
* assumptions[3] which may require re-evaluating the design choice if they
* fail to hold.
*
* 1: https://lists.freedesktop.org/archives/wayland-devel/2016-February/026989.html
* 2: https://lists.freedesktop.org/archives/wayland-devel/2016-February/026929.html
* 3: https://lists.freedesktop.org/archives/wayland-devel/2016-February/027228.html
*/
struct weston_backend_config {
/** Major version for the backend-specific config struct
*
* This version must match exactly what the backend expects, otherwise
* the struct is incompatible.
*/
uint32_t struct_version;
/** Minor version of the backend-specific config struct
*
* This must be set to sizeof(struct backend-specific config).
* If the value here is smaller than what the backend expects, the
* extra config members will assume their default values.
*
* A value greater than what the backend expects is incompatible.
*/
size_t struct_size;
};
struct weston_backend {
void (*destroy)(struct weston_compositor *compositor);
void (*restore)(struct weston_compositor *compositor);
};
struct weston_compositor {
struct wl_signal destroy_signal;
struct wl_display *wl_display;
struct weston_shell_interface shell_interface;
/* surface signals */
struct wl_signal create_surface_signal;
struct wl_signal activate_signal;
struct wl_signal transform_signal;
struct wl_signal kill_signal;
struct wl_signal idle_signal;
struct wl_signal wake_signal;
struct wl_signal show_input_panel_signal;
struct wl_signal hide_input_panel_signal;
struct wl_signal update_input_panel_signal;
struct wl_signal seat_created_signal;
struct wl_signal output_created_signal;
struct wl_signal output_destroyed_signal;
struct wl_signal output_moved_signal;
struct wl_signal output_resized_signal; /* callback argument: resized output */
struct wl_signal session_signal;
int session_active;
struct weston_layer fade_layer;
struct weston_layer cursor_layer;
struct wl_list output_list;
struct wl_list seat_list;
struct wl_list layer_list;
struct wl_list view_list; /* struct weston_view::link */
struct wl_list plane_list;
struct wl_list key_binding_list;
struct wl_list modifier_binding_list;
struct wl_list button_binding_list;
struct wl_list touch_binding_list;
struct wl_list axis_binding_list;
struct wl_list debug_binding_list;
uint32_t state;
struct wl_event_source *idle_source;
uint32_t idle_inhibit;
int idle_time; /* timeout, s */
const struct weston_pointer_grab_interface *default_pointer_grab;
/* Repaint state. */
struct weston_plane primary_plane;
uint32_t capabilities; /* combination of enum weston_capability */
struct weston_renderer *renderer;
pixman_format_code_t read_format;
struct weston_backend *backend;
struct weston_launcher *launcher;
struct wl_list plugin_api_list; /* struct weston_plugin_api::link */
uint32_t output_id_pool;
struct xkb_rule_names xkb_names;
struct xkb_context *xkb_context;
struct weston_xkb_info *xkb_info;
/* Raw keyboard processing (no libxkbcommon initialization or handling) */
int use_xkbcommon;
int32_t kb_repeat_rate;
int32_t kb_repeat_delay;
bool vt_switching;
clockid_t presentation_clock;
int32_t repaint_msec;
unsigned int activate_serial;
struct wl_global *pointer_constraints;
int exit_code;
void *user_data;
void (*exit)(struct weston_compositor *c);
};
struct weston_buffer {
struct wl_resource *resource;
struct wl_signal destroy_signal;
struct wl_listener destroy_listener;
union {
struct wl_shm_buffer *shm_buffer;
void *legacy_buffer;
};
int32_t width, height;
uint32_t busy_count;
int y_inverted;
};
struct weston_buffer_reference {
struct weston_buffer *buffer;
struct wl_listener destroy_listener;
};
struct weston_buffer_viewport {
struct {
/* wl_surface.set_buffer_transform */
uint32_t transform;
/* wl_surface.set_scaling_factor */
int32_t scale;
/*
* If src_width != wl_fixed_from_int(-1),
* then and only then src_* are used.
*/
wl_fixed_t src_x, src_y;
wl_fixed_t src_width, src_height;
} buffer;
struct {
/*
* If width == -1, the size is inferred from the buffer.
*/
int32_t width, height;
} surface;
int changed;
};
struct weston_region {
struct wl_resource *resource;
pixman_region32_t region;
};
/* Using weston_view transformations
*
* To add a transformation to a view, create a struct weston_transform, and
* add it to the list view->geometry.transformation_list. Whenever you
* change the list, anything under view->geometry, or anything in the
* weston_transforms linked into the list, you must call
* weston_view_geometry_dirty().
*
* The order in the list defines the order of transformations. Let the list
* contain the transformation matrices M1, ..., Mn as head to tail. The
* transformation is applied to view-local coordinate vector p as
* P = Mn * ... * M2 * M1 * p
* to produce the global coordinate vector P. The total transform
* Mn * ... * M2 * M1
* is cached in view->transform.matrix, and the inverse of it in
* view->transform.inverse.
*
* The list always contains view->transform.position transformation, which
* is the translation by view->geometry.x and y.
*
* If you want to apply a transformation in local coordinates, add your
* weston_transform to the head of the list. If you want to apply a
* transformation in global coordinates, add it to the tail of the list.
*
* If view->geometry.parent is set, the total transformation of this
* view will be the parent's total transformation and this transformation
* combined:
* Mparent * Mn * ... * M2 * M1
*/
struct weston_view {
struct weston_surface *surface;
struct wl_list surface_link;
struct wl_signal destroy_signal;
struct wl_list link; /* weston_compositor::view_list */
struct weston_layer_entry layer_link; /* part of geometry */
struct weston_plane *plane;
/* For weston_layer inheritance from another view */
struct weston_view *parent_view;
unsigned int click_to_activate_serial;
pixman_region32_t clip; /* See weston_view_damage_below() */
float alpha; /* part of geometry, see below */
void *renderer_state;
/* Surface geometry state, mutable.
* If you change anything, call weston_surface_geometry_dirty().
* That includes the transformations referenced from the list.
*/
struct {
float x, y; /* surface translation on display */
/* struct weston_transform */
struct wl_list transformation_list;
/* managed by weston_surface_set_transform_parent() */
struct weston_view *parent;
struct wl_listener parent_destroy_listener;
struct wl_list child_list; /* geometry.parent_link */
struct wl_list parent_link;
/* managed by weston_view_set_mask() */
bool scissor_enabled;
pixman_region32_t scissor; /* always a simple rect */
} geometry;
/* State derived from geometry state, read-only.
* This is updated by weston_view_update_transform().
*/
struct {
int dirty;
/* Approximations in global coordinates:
* - boundingbox is guaranteed to include the whole view in
* the smallest possible single rectangle.
* - opaque is guaranteed to be fully opaque, though not
* necessarily include all opaque areas.
*/
pixman_region32_t boundingbox;
pixman_region32_t opaque;
/* matrix and inverse are used only if enabled = 1.
* If enabled = 0, use x, y, width, height directly.
*/
int enabled;
struct weston_matrix matrix;
struct weston_matrix inverse;
struct weston_transform position; /* matrix from x, y */
} transform;
/*
* The primary output for this view.
* Used for picking the output for driving internal animations on the
* view, inheriting the primary output for related views in shells, etc.
*/
struct weston_output *output;
/*
* A more complete representation of all outputs this surface is
* displayed on.
*/
uint32_t output_mask;
/* Per-surface Presentation feedback flags, controlled by backend. */
uint32_t psf_flags;
bool is_mapped;
};
struct weston_surface_state {
/* wl_surface.attach */
int newly_attached;
struct weston_buffer *buffer;
struct wl_listener buffer_destroy_listener;
int32_t sx;
int32_t sy;
/* wl_surface.damage */
pixman_region32_t damage_surface;
/* wl_surface.damage_buffer */
pixman_region32_t damage_buffer;
/* wl_surface.set_opaque_region */
pixman_region32_t opaque;
/* wl_surface.set_input_region */
pixman_region32_t input;
/* wl_surface.frame */
struct wl_list frame_callback_list;
/* presentation.feedback */
struct wl_list feedback_list;
/* wl_surface.set_buffer_transform */
/* wl_surface.set_scaling_factor */
/* wp_viewport.set_source */
/* wp_viewport.set_destination */
struct weston_buffer_viewport buffer_viewport;
};
struct weston_surface_activation_data {
struct weston_surface *surface;
struct weston_seat *seat;
};
struct weston_pointer_constraint {
struct wl_list link;
struct weston_surface *surface;
struct weston_view *view;
struct wl_resource *resource;
struct weston_pointer_grab grab;
struct weston_pointer *pointer;
uint32_t lifetime;
pixman_region32_t region;
pixman_region32_t region_pending;
bool region_is_pending;
wl_fixed_t hint_x;
wl_fixed_t hint_y;
wl_fixed_t hint_x_pending;
wl_fixed_t hint_y_pending;
bool hint_is_pending;
struct wl_listener pointer_destroy_listener;
struct wl_listener surface_destroy_listener;
struct wl_listener surface_commit_listener;
struct wl_listener surface_activate_listener;
};
struct weston_surface {
struct wl_resource *resource;
struct wl_signal destroy_signal; /* callback argument: this surface */
struct weston_compositor *compositor;
struct wl_signal commit_signal;
/** Damage in local coordinates from the client, for tex upload. */
pixman_region32_t damage;
pixman_region32_t opaque; /* part of geometry, see below */
pixman_region32_t input;
int32_t width, height;
int32_t ref_count;
/* Not for long-term storage. This exists for book-keeping while
* iterating over surfaces and views
*/
bool touched;
void *renderer_state;
struct wl_list views;
/*
* Which output to vsync this surface to.
* Used to determine whether to send or queue frame events, and for
* other client-visible syncing/throttling tied to the output
* repaint cycle.
*/
struct weston_output *output;
/*
* A more complete representation of all outputs this surface is
* displayed on.
*/
uint32_t output_mask;
struct wl_list frame_callback_list;
struct wl_list feedback_list;
struct weston_buffer_reference buffer_ref;
struct weston_buffer_viewport buffer_viewport;
int32_t width_from_buffer; /* before applying viewport */
int32_t height_from_buffer;
bool keep_buffer; /* for backends to prevent early release */
/* wp_viewport resource for this surface */
struct wl_resource *viewport_resource;
/* All the pending state, that wl_surface.commit will apply. */
struct weston_surface_state pending;
/* Matrices representating of the full transformation between
* buffer and surface coordinates. These matrices are updated
* using the weston_surface_build_buffer_matrix function. */
struct weston_matrix buffer_to_surface_matrix;
struct weston_matrix surface_to_buffer_matrix;
/*
* If non-NULL, this function will be called on
* wl_surface::commit after a new buffer has been set up for
* this surface. The integer params are the sx and sy
* parameters supplied to wl_surface::attach.
*/
void (*configure)(struct weston_surface *es, int32_t sx, int32_t sy);
void *configure_private;
int (*get_label)(struct weston_surface *surface, char *buf, size_t len);
/* Parent's list of its sub-surfaces, weston_subsurface:parent_link.
* Contains also the parent itself as a dummy weston_subsurface,
* if the list is not empty.
*/
struct wl_list subsurface_list; /* weston_subsurface::parent_link */
struct wl_list subsurface_list_pending; /* ...::parent_link_pending */
/*
* For tracking protocol role assignments. Different roles may
* have the same configure hook, e.g. in shell.c. Configure hook
* may get reset, this will not.
* XXX: map configure functions 1:1 to roles, and never reset it,
* and replace role_name with configure.
*/
const char *role_name;
struct weston_timeline_object timeline;
bool is_mapped;
/* An list of per seat pointer constraints. */
struct wl_list pointer_constraints;
};
struct weston_subsurface {
struct wl_resource *resource;
/* guaranteed to be valid and non-NULL */
struct weston_surface *surface;
struct wl_listener surface_destroy_listener;
/* can be NULL */
struct weston_surface *parent;
struct wl_listener parent_destroy_listener;
struct wl_list parent_link;
struct wl_list parent_link_pending;
struct {
int32_t x;
int32_t y;
int set;
} position;
int has_cached_data;
struct weston_surface_state cached;
struct weston_buffer_reference cached_buffer_ref;
int synchronized;
/* Used for constructing the view tree */
struct wl_list unused_views;
};
enum weston_key_state_update {
STATE_UPDATE_AUTOMATIC,
STATE_UPDATE_NONE,
};
enum weston_activate_flag {
WESTON_ACTIVATE_FLAG_NONE = 0,
WESTON_ACTIVATE_FLAG_CONFIGURE = 1 << 0,
WESTON_ACTIVATE_FLAG_CLICKED = 1 << 1,
};
void
weston_version(int *major, int *minor, int *micro);
void
weston_view_update_transform(struct weston_view *view);
void
weston_view_geometry_dirty(struct weston_view *view);
void
weston_view_to_global_fixed(struct weston_view *view,
wl_fixed_t sx, wl_fixed_t sy,
wl_fixed_t *x, wl_fixed_t *y);
void
weston_view_to_global_float(struct weston_view *view,
float sx, float sy, float *x, float *y);
void
weston_view_from_global_float(struct weston_view *view,
float x, float y, float *vx, float *vy);
void
weston_view_from_global(struct weston_view *view,
int32_t x, int32_t y, int32_t *vx, int32_t *vy);
void
weston_view_from_global_fixed(struct weston_view *view,
wl_fixed_t x, wl_fixed_t y,
wl_fixed_t *vx, wl_fixed_t *vy);
void
weston_surface_to_buffer_float(struct weston_surface *surface,
float x, float y, float *bx, float *by);
pixman_box32_t
weston_surface_to_buffer_rect(struct weston_surface *surface,
pixman_box32_t rect);
void
weston_surface_to_buffer_region(struct weston_surface *surface,
pixman_region32_t *surface_region,
pixman_region32_t *buffer_region);
void
weston_spring_init(struct weston_spring *spring,
double k, double current, double target);
void
weston_spring_update(struct weston_spring *spring, uint32_t msec);
int
weston_spring_done(struct weston_spring *spring);
void
weston_view_activate(struct weston_view *view,
struct weston_seat *seat,
uint32_t flags);
void
notify_motion(struct weston_seat *seat, uint32_t time,
struct weston_pointer_motion_event *event);
void
notify_motion_absolute(struct weston_seat *seat, uint32_t time,
double x, double y);
void
notify_button(struct weston_seat *seat, uint32_t time, int32_t button,
enum wl_pointer_button_state state);
void
notify_axis(struct weston_seat *seat, uint32_t time,
struct weston_pointer_axis_event *event);
void
notify_axis_source(struct weston_seat *seat, uint32_t source);
void
notify_pointer_frame(struct weston_seat *seat);
void
notify_key(struct weston_seat *seat, uint32_t time, uint32_t key,
enum wl_keyboard_key_state state,
enum weston_key_state_update update_state);
void
notify_modifiers(struct weston_seat *seat, uint32_t serial);
void
notify_pointer_focus(struct weston_seat *seat, struct weston_output *output,
double x, double y);
void
notify_keyboard_focus_in(struct weston_seat *seat, struct wl_array *keys,
enum weston_key_state_update update_state);
void
notify_keyboard_focus_out(struct weston_seat *seat);
void
notify_touch(struct weston_seat *seat, uint32_t time, int touch_id,
double x, double y, int touch_type);
void
notify_touch_frame(struct weston_seat *seat);
void
notify_touch_cancel(struct weston_seat *seat);
void
weston_layer_entry_insert(struct weston_layer_entry *list,
struct weston_layer_entry *entry);
void
weston_layer_entry_remove(struct weston_layer_entry *entry);
void
weston_layer_init(struct weston_layer *layer, struct wl_list *below);
void
weston_layer_set_mask(struct weston_layer *layer, int x, int y, int width, int height);
void
weston_layer_set_mask_infinite(struct weston_layer *layer);
void
weston_plane_init(struct weston_plane *plane,
struct weston_compositor *ec,
int32_t x, int32_t y);
void
weston_plane_release(struct weston_plane *plane);
void
weston_compositor_stack_plane(struct weston_compositor *ec,
struct weston_plane *plane,
struct weston_plane *above);
/* An invalid flag in presented_flags to catch logic errors. */
#define WP_PRESENTATION_FEEDBACK_INVALID (1U << 31)
void
weston_output_finish_frame(struct weston_output *output,
const struct timespec *stamp,
uint32_t presented_flags);
void
weston_output_schedule_repaint(struct weston_output *output);
void
weston_output_damage(struct weston_output *output);
void
weston_compositor_schedule_repaint(struct weston_compositor *compositor);
void
weston_compositor_fade(struct weston_compositor *compositor, float tint);
void
weston_compositor_damage_all(struct weston_compositor *compositor);
void
weston_compositor_unlock(struct weston_compositor *compositor);
void
weston_compositor_wake(struct weston_compositor *compositor);
void
weston_compositor_offscreen(struct weston_compositor *compositor);
void
weston_compositor_sleep(struct weston_compositor *compositor);
struct weston_view *
weston_compositor_pick_view(struct weston_compositor *compositor,
wl_fixed_t x, wl_fixed_t y,
wl_fixed_t *sx, wl_fixed_t *sy);
struct weston_binding;
typedef void (*weston_key_binding_handler_t)(struct weston_keyboard *keyboard,
uint32_t time, uint32_t key,
void *data);
struct weston_binding *
weston_compositor_add_key_binding(struct weston_compositor *compositor,
uint32_t key,
enum weston_keyboard_modifier modifier,
weston_key_binding_handler_t binding,
void *data);
typedef void (*weston_modifier_binding_handler_t)(struct weston_keyboard *keyboard,
enum weston_keyboard_modifier modifier,
void *data);
struct weston_binding *
weston_compositor_add_modifier_binding(struct weston_compositor *compositor,
enum weston_keyboard_modifier modifier,
weston_modifier_binding_handler_t binding,
void *data);
typedef void (*weston_button_binding_handler_t)(struct weston_pointer *pointer,
uint32_t time, uint32_t button,
void *data);
struct weston_binding *
weston_compositor_add_button_binding(struct weston_compositor *compositor,
uint32_t button,
enum weston_keyboard_modifier modifier,
weston_button_binding_handler_t binding,
void *data);
typedef void (*weston_touch_binding_handler_t)(struct weston_touch *touch,
uint32_t time,
void *data);
struct weston_binding *
weston_compositor_add_touch_binding(struct weston_compositor *compositor,
enum weston_keyboard_modifier modifier,
weston_touch_binding_handler_t binding,
void *data);
typedef void (*weston_axis_binding_handler_t)(struct weston_pointer *pointer,
uint32_t time,
struct weston_pointer_axis_event *event,
void *data);
struct weston_binding *
weston_compositor_add_axis_binding(struct weston_compositor *compositor,
uint32_t axis,
enum weston_keyboard_modifier modifier,
weston_axis_binding_handler_t binding,
void *data);
struct weston_binding *
weston_compositor_add_debug_binding(struct weston_compositor *compositor,
uint32_t key,
weston_key_binding_handler_t binding,
void *data);
void
weston_binding_destroy(struct weston_binding *binding);
void
weston_install_debug_key_binding(struct weston_compositor *compositor,
uint32_t mod);
void
weston_binding_list_destroy_all(struct wl_list *list);
void
weston_compositor_run_key_binding(struct weston_compositor *compositor,
struct weston_keyboard *keyboard,
uint32_t time,
uint32_t key,
enum wl_keyboard_key_state state);
void
weston_compositor_run_modifier_binding(struct weston_compositor *compositor,
struct weston_keyboard *keyboard,
enum weston_keyboard_modifier modifier,
enum wl_keyboard_key_state state);
void
weston_compositor_run_button_binding(struct weston_compositor *compositor,
struct weston_pointer *pointer, uint32_t time,
uint32_t button,
enum wl_pointer_button_state value);
void
weston_compositor_run_touch_binding(struct weston_compositor *compositor,
struct weston_touch *touch, uint32_t time,
int touch_type);
int
weston_compositor_run_axis_binding(struct weston_compositor *compositor,
struct weston_pointer *pointer, uint32_t time,
struct weston_pointer_axis_event *event);
int
weston_compositor_run_debug_binding(struct weston_compositor *compositor,
struct weston_keyboard *keyboard, uint32_t time,
uint32_t key,
enum wl_keyboard_key_state state);
void
weston_compositor_set_default_pointer_grab(struct weston_compositor *compositor,
const struct weston_pointer_grab_interface *interface);
int
weston_environment_get_fd(const char *env);
struct wl_list *
weston_compositor_top(struct weston_compositor *compositor);
struct weston_surface *
weston_surface_create(struct weston_compositor *compositor);
struct weston_view *
weston_view_create(struct weston_surface *surface);
void
weston_view_destroy(struct weston_view *view);
void
weston_view_set_position(struct weston_view *view,
float x, float y);
void
weston_view_set_transform_parent(struct weston_view *view,
struct weston_view *parent);
void
weston_view_set_mask(struct weston_view *view,
int x, int y, int width, int height);
void
weston_view_set_mask_infinite(struct weston_view *view);
bool
weston_view_is_mapped(struct weston_view *view);
void
weston_view_schedule_repaint(struct weston_view *view);
bool
weston_surface_is_mapped(struct weston_surface *surface);
void
weston_surface_set_size(struct weston_surface *surface,
int32_t width, int32_t height);
void
weston_surface_schedule_repaint(struct weston_surface *surface);
void
weston_surface_damage(struct weston_surface *surface);
void
weston_view_damage_below(struct weston_view *view);
void
weston_view_move_to_plane(struct weston_view *view,
struct weston_plane *plane);
void
weston_view_unmap(struct weston_view *view);
void
weston_surface_unmap(struct weston_surface *surface);
struct weston_surface *
weston_surface_get_main_surface(struct weston_surface *surface);
int
weston_surface_set_role(struct weston_surface *surface,
const char *role_name,
struct wl_resource *error_resource,
uint32_t error_code);
void
weston_surface_set_label_func(struct weston_surface *surface,
int (*desc)(struct weston_surface *,
char *, size_t));
void
weston_surface_get_content_size(struct weston_surface *surface,
int *width, int *height);
int
weston_surface_copy_content(struct weston_surface *surface,
void *target, size_t size,
int src_x, int src_y,
int width, int height);
struct weston_buffer *
weston_buffer_from_resource(struct wl_resource *resource);
void
weston_buffer_reference(struct weston_buffer_reference *ref,
struct weston_buffer *buffer);
uint32_t
weston_compositor_get_time(void);
void
weston_compositor_destroy(struct weston_compositor *ec);
struct weston_compositor *
weston_compositor_create(struct wl_display *display, void *user_data);
enum weston_compositor_backend {
WESTON_BACKEND_DRM,
WESTON_BACKEND_FBDEV,
WESTON_BACKEND_HEADLESS,
WESTON_BACKEND_RDP,
WESTON_BACKEND_WAYLAND,
WESTON_BACKEND_X11,
};
int
weston_compositor_load_backend(struct weston_compositor *compositor,
enum weston_compositor_backend backend,
struct weston_backend_config *config_base);
void
weston_compositor_exit(struct weston_compositor *ec);
void *
weston_compositor_get_user_data(struct weston_compositor *compositor);
int
weston_compositor_set_presentation_clock(struct weston_compositor *compositor,
clockid_t clk_id);
int
weston_compositor_set_presentation_clock_software(
struct weston_compositor *compositor);
void
weston_compositor_read_presentation_clock(
const struct weston_compositor *compositor,
struct timespec *ts);
bool
weston_compositor_import_dmabuf(struct weston_compositor *compositor,
struct linux_dmabuf_buffer *buffer);
void
weston_compositor_shutdown(struct weston_compositor *ec);
void
weston_compositor_exit_with_code(struct weston_compositor *compositor,
int exit_code);
void
weston_output_init_zoom(struct weston_output *output);
void
weston_output_update_zoom(struct weston_output *output);
void
weston_output_activate_zoom(struct weston_output *output,
struct weston_seat *seat);
void
weston_output_update_matrix(struct weston_output *output);
void
weston_output_move(struct weston_output *output, int x, int y);
void
weston_output_init(struct weston_output *output, struct weston_compositor *c,
int x, int y, int width, int height, uint32_t transform, int32_t scale);
void
weston_compositor_add_output(struct weston_compositor *compositor,
struct weston_output *output);
void
weston_output_destroy(struct weston_output *output);
void
weston_output_transform_coordinate(struct weston_output *output,
double device_x, double device_y,
double *x, double *y);
void
weston_seat_init(struct weston_seat *seat, struct weston_compositor *ec,
const char *seat_name);
void
weston_seat_init_pointer(struct weston_seat *seat);
void
weston_seat_release_pointer(struct weston_seat *seat);
int
weston_seat_init_keyboard(struct weston_seat *seat, struct xkb_keymap *keymap);
void
weston_seat_release_keyboard(struct weston_seat *seat);
void
weston_seat_init_touch(struct weston_seat *seat);
void
weston_seat_release_touch(struct weston_seat *seat);
void
weston_seat_repick(struct weston_seat *seat);
void
weston_seat_update_keymap(struct weston_seat *seat, struct xkb_keymap *keymap);
void
weston_seat_release(struct weston_seat *seat);
int
weston_compositor_set_xkb_rule_names(struct weston_compositor *ec,
struct xkb_rule_names *names);
void
weston_compositor_xkb_destroy(struct weston_compositor *ec);
/* String literal of spaces, the same width as the timestamp. */
#define STAMP_SPACE " "
typedef int (*log_func_t)(const char *fmt, va_list ap);
void
weston_log_set_handler(log_func_t log, log_func_t cont);
int
weston_vlog(const char *fmt, va_list ap);
int
weston_vlog_continue(const char *fmt, va_list ap);
int
weston_log(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
int
weston_log_continue(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
enum {
TTY_ENTER_VT,
TTY_LEAVE_VT
};
struct tty *
tty_create(struct weston_compositor *compositor, int tty_nr);
void
tty_destroy(struct tty *tty);
void
tty_reset(struct tty *tty);
int
tty_activate_vt(struct tty *tty, int vt);
enum weston_screenshooter_outcome {
WESTON_SCREENSHOOTER_SUCCESS,
WESTON_SCREENSHOOTER_NO_MEMORY,
WESTON_SCREENSHOOTER_BAD_BUFFER
};
typedef void (*weston_screenshooter_done_func_t)(void *data,
enum weston_screenshooter_outcome outcome);
int
weston_screenshooter_shoot(struct weston_output *output, struct weston_buffer *buffer,
weston_screenshooter_done_func_t done, void *data);
struct weston_recorder *
weston_recorder_start(struct weston_output *output, const char *filename);
void
weston_recorder_stop(struct weston_recorder *recorder);
struct clipboard *
clipboard_create(struct weston_seat *seat);
struct text_backend;
struct text_backend *
text_backend_init(struct weston_compositor *ec);
void
text_backend_destroy(struct text_backend *text_backend);
struct weston_view_animation;
typedef void (*weston_view_animation_done_func_t)(struct weston_view_animation *animation, void *data);
void
weston_view_animation_destroy(struct weston_view_animation *animation);
struct weston_view_animation *
weston_zoom_run(struct weston_view *view, float start, float stop,
weston_view_animation_done_func_t done, void *data);
struct weston_view_animation *
weston_fade_run(struct weston_view *view,
float start, float end, float k,
weston_view_animation_done_func_t done, void *data);
struct weston_view_animation *
weston_move_scale_run(struct weston_view *view, int dx, int dy,
float start, float end, int reverse,
weston_view_animation_done_func_t done, void *data);
void
weston_fade_update(struct weston_view_animation *fade, float target);
struct weston_view_animation *
weston_stable_fade_run(struct weston_view *front_view, float start,
struct weston_view *back_view, float end,
weston_view_animation_done_func_t done, void *data);
struct weston_view_animation *
weston_slide_run(struct weston_view *view, float start, float stop,
weston_view_animation_done_func_t done, void *data);
void
weston_surface_set_color(struct weston_surface *surface,
float red, float green, float blue, float alpha);
void
weston_surface_destroy(struct weston_surface *surface);
int
weston_output_mode_set_native(struct weston_output *output,
struct weston_mode *mode,
int32_t scale);
int
weston_output_mode_switch_to_temporary(struct weston_output *output,
struct weston_mode *mode,
int32_t scale);
int
weston_output_mode_switch_to_native(struct weston_output *output);
int
noop_renderer_init(struct weston_compositor *ec);
int
weston_input_init(struct weston_compositor *compositor);
int
backend_init(struct weston_compositor *c,
struct weston_backend_config *config_base);
int
module_init(struct weston_compositor *compositor,
int *argc, char *argv[]);
void
weston_transformed_coord(int width, int height,
enum wl_output_transform transform,
int32_t scale,
float sx, float sy, float *bx, float *by);
pixman_box32_t
weston_transformed_rect(int width, int height,
enum wl_output_transform transform,
int32_t scale,
pixman_box32_t rect);
void
weston_matrix_transform_region(pixman_region32_t *dest,
struct weston_matrix *matrix,
pixman_region32_t *src);
void
weston_transformed_region(int width, int height,
enum wl_output_transform transform,
int32_t scale,
pixman_region32_t *src, pixman_region32_t *dest);
void *
weston_load_module(const char *name, const char *entrypoint);
int
weston_parse_transform(const char *transform, uint32_t *out);
const char *
weston_transform_to_string(uint32_t output_transform);
struct weston_keyboard *
weston_seat_get_keyboard(struct weston_seat *seat);
struct weston_pointer *
weston_seat_get_pointer(struct weston_seat *seat);
struct weston_touch *
weston_seat_get_touch(struct weston_seat *seat);
void
weston_seat_set_keyboard_focus(struct weston_seat *seat,
struct weston_surface *surface);
int
weston_compositor_load_xwayland(struct weston_compositor *compositor);
#ifdef __cplusplus
}
#endif
#endif