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244 lines
7.4 KiB
244 lines
7.4 KiB
/*
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* Copyright © 2008-2011 Kristian Høgsberg
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* Copyright © 2017, 2018 General Electric Company
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* Copyright © 2012, 2017-2019 Collabora, Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/*
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* This header contains the libweston ABI exported only for internal backends.
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*/
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#ifndef LIBWESTON_BACKEND_INTERNAL_H
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#define LIBWESTON_BACKEND_INTERNAL_H
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struct weston_backend {
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void (*destroy)(struct weston_compositor *compositor);
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/** Begin a repaint sequence
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*
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* Provides the backend with explicit markers around repaint
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* sequences, which may allow the backend to aggregate state
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* application. This call will be bracketed by the repaint_flush (on
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* success), or repaint_cancel (when any output in the grouping fails
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* repaint).
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*
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* Returns an opaque pointer, which the backend may use as private
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* data referring to the repaint cycle.
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*/
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void * (*repaint_begin)(struct weston_compositor *compositor);
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/** Cancel a repaint sequence
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*
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* Cancels a repaint sequence, when an error has occurred during
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* one output's repaint; see repaint_begin.
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*
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* @param repaint_data Data returned by repaint_begin
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*/
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void (*repaint_cancel)(struct weston_compositor *compositor,
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void *repaint_data);
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/** Conclude a repaint sequence
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*
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* Called on successful completion of a repaint sequence; see
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* repaint_begin.
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*
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* @param repaint_data Data returned by repaint_begin
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*/
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int (*repaint_flush)(struct weston_compositor *compositor,
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void *repaint_data);
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/** Allocate a new output
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*
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* @param compositor The compositor.
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* @param name Name for the new output.
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*
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* Allocates a new output structure that embeds a weston_output,
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* initializes it, and returns the pointer to the weston_output
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* member.
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*
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* Must set weston_output members @c destroy, @c enable and @c disable.
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*/
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struct weston_output *
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(*create_output)(struct weston_compositor *compositor,
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const char *name);
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/** Notify of device addition/removal
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*
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* @param compositor The compositor.
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* @param device The device that has changed.
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* @param added Where it was added (or removed)
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*
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* Called when a device has been added/removed from the session.
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* The backend can decide what to do based on whether it is a
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* device that it is controlling or not.
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*/
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void (*device_changed)(struct weston_compositor *compositor,
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dev_t device, bool added);
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/** Verifies if the dmabuf can be used directly/scanned-out by the HW.
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*
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* @param compositor The compositor.
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* @param buffer The dmabuf to verify.
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*
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* Determines if the buffer can be imported directly by the display
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* controller/HW. Back-ends can use this to check if the supplied
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* buffer can be scanned-out, as to void importing it into the GPU.
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*/
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bool (*can_scanout_dmabuf)(struct weston_compositor *compositor,
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struct linux_dmabuf_buffer *buffer);
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};
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/* weston_head */
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void
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weston_head_init(struct weston_head *head, const char *name);
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void
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weston_head_release(struct weston_head *head);
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void
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weston_head_set_connection_status(struct weston_head *head, bool connected);
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void
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weston_head_set_internal(struct weston_head *head);
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void
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weston_head_set_monitor_strings(struct weston_head *head,
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const char *make,
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const char *model,
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const char *serialno);
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void
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weston_head_set_non_desktop(struct weston_head *head, bool non_desktop);
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void
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weston_head_set_physical_size(struct weston_head *head,
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int32_t mm_width, int32_t mm_height);
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void
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weston_head_set_subpixel(struct weston_head *head,
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enum wl_output_subpixel sp);
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/* weston_output */
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void
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weston_output_init(struct weston_output *output,
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struct weston_compositor *compositor,
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const char *name);
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void
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weston_output_damage(struct weston_output *output);
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void
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weston_output_release(struct weston_output *output);
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void
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weston_output_init_zoom(struct weston_output *output);
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void
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weston_output_finish_frame(struct weston_output *output,
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const struct timespec *stamp,
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uint32_t presented_flags);
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int
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weston_output_mode_set_native(struct weston_output *output,
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struct weston_mode *mode,
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int32_t scale);
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void
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weston_output_transform_coordinate(struct weston_output *output,
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double device_x, double device_y,
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double *x, double *y);
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/* weston_seat */
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void
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notify_axis(struct weston_seat *seat, const struct timespec *time,
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struct weston_pointer_axis_event *event);
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void
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notify_axis_source(struct weston_seat *seat, uint32_t source);
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void
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notify_button(struct weston_seat *seat, const struct timespec *time,
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int32_t button, enum wl_pointer_button_state state);
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void
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notify_key(struct weston_seat *seat, const struct timespec *time, uint32_t key,
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enum wl_keyboard_key_state state,
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enum weston_key_state_update update_state);
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void
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notify_keyboard_focus_in(struct weston_seat *seat, struct wl_array *keys,
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enum weston_key_state_update update_state);
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void
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notify_keyboard_focus_out(struct weston_seat *seat);
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void
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notify_motion(struct weston_seat *seat, const struct timespec *time,
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struct weston_pointer_motion_event *event);
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void
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notify_motion_absolute(struct weston_seat *seat, const struct timespec *time,
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double x, double y);
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void
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notify_modifiers(struct weston_seat *seat, uint32_t serial);
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void
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notify_pointer_frame(struct weston_seat *seat);
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void
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notify_pointer_focus(struct weston_seat *seat, struct weston_output *output,
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double x, double y);
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/* weston_touch_device */
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void
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notify_touch_normalized(struct weston_touch_device *device,
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const struct timespec *time,
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int touch_id,
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double x, double y,
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const struct weston_point2d_device_normalized *norm,
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int touch_type);
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/** Feed in touch down, motion, and up events, non-calibratable device.
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*
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* @sa notify_touch_cal
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*/
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static inline void
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notify_touch(struct weston_touch_device *device, const struct timespec *time,
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int touch_id, double x, double y, int touch_type)
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{
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notify_touch_normalized(device, time, touch_id, x, y, NULL, touch_type);
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}
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void
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notify_touch_frame(struct weston_touch_device *device);
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void
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notify_touch_cancel(struct weston_touch_device *device);
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void
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notify_touch_calibrator(struct weston_touch_device *device,
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const struct timespec *time, int32_t slot,
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const struct weston_point2d_device_normalized *norm,
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int touch_type);
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void
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notify_touch_calibrator_cancel(struct weston_touch_device *device);
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void
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notify_touch_calibrator_frame(struct weston_touch_device *device);
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#endif
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