scaling
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264
lib/fractional-scale-v1.h
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264
lib/fractional-scale-v1.h
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/* Generated by wayland-scanner 1.24.0 */
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#ifndef FRACTIONAL_SCALE_V1_CLIENT_PROTOCOL_H
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#define FRACTIONAL_SCALE_V1_CLIENT_PROTOCOL_H
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#include <stdint.h>
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#include <stddef.h>
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#include "wayland-client.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @page page_fractional_scale_v1 The fractional_scale_v1 protocol
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* Protocol for requesting fractional surface scales
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*
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* @section page_desc_fractional_scale_v1 Description
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*
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* This protocol allows a compositor to suggest for surfaces to render at
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* fractional scales.
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*
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* A client can submit scaled content by utilizing wp_viewport. This is done by
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* creating a wp_viewport object for the surface and setting the destination
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* rectangle to the surface size before the scale factor is applied.
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*
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* The buffer size is calculated by multiplying the surface size by the
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* intended scale.
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*
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* The wl_surface buffer scale should remain set to 1.
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*
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* If a surface has a surface-local size of 100 px by 50 px and wishes to
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* submit buffers with a scale of 1.5, then a buffer of 150px by 75 px should
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* be used and the wp_viewport destination rectangle should be 100 px by 50 px.
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*
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* For toplevel surfaces, the size is rounded halfway away from zero. The
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* rounding algorithm for subsurface position and size is not defined.
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*
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* @section page_ifaces_fractional_scale_v1 Interfaces
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* - @subpage page_iface_wp_fractional_scale_manager_v1 - fractional surface scale information
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* - @subpage page_iface_wp_fractional_scale_v1 - fractional scale interface to a wl_surface
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* @section page_copyright_fractional_scale_v1 Copyright
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* <pre>
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*
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* Copyright © 2022 Kenny Levinsen
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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* </pre>
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*/
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struct wl_surface;
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struct wp_fractional_scale_manager_v1;
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struct wp_fractional_scale_v1;
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#ifndef WP_FRACTIONAL_SCALE_MANAGER_V1_INTERFACE
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#define WP_FRACTIONAL_SCALE_MANAGER_V1_INTERFACE
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/**
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* @page page_iface_wp_fractional_scale_manager_v1 wp_fractional_scale_manager_v1
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* @section page_iface_wp_fractional_scale_manager_v1_desc Description
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*
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* A global interface for requesting surfaces to use fractional scales.
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* @section page_iface_wp_fractional_scale_manager_v1_api API
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* See @ref iface_wp_fractional_scale_manager_v1.
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*/
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/**
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* @defgroup iface_wp_fractional_scale_manager_v1 The wp_fractional_scale_manager_v1 interface
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*
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* A global interface for requesting surfaces to use fractional scales.
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*/
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extern const struct wl_interface wp_fractional_scale_manager_v1_interface;
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#endif
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#ifndef WP_FRACTIONAL_SCALE_V1_INTERFACE
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#define WP_FRACTIONAL_SCALE_V1_INTERFACE
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/**
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* @page page_iface_wp_fractional_scale_v1 wp_fractional_scale_v1
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* @section page_iface_wp_fractional_scale_v1_desc Description
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*
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* An additional interface to a wl_surface object which allows the compositor
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* to inform the client of the preferred scale.
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* @section page_iface_wp_fractional_scale_v1_api API
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* See @ref iface_wp_fractional_scale_v1.
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*/
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/**
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* @defgroup iface_wp_fractional_scale_v1 The wp_fractional_scale_v1 interface
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*
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* An additional interface to a wl_surface object which allows the compositor
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* to inform the client of the preferred scale.
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*/
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extern const struct wl_interface wp_fractional_scale_v1_interface;
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#endif
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#ifndef WP_FRACTIONAL_SCALE_MANAGER_V1_ERROR_ENUM
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#define WP_FRACTIONAL_SCALE_MANAGER_V1_ERROR_ENUM
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enum wp_fractional_scale_manager_v1_error {
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/**
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* the surface already has a fractional_scale object associated
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*/
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WP_FRACTIONAL_SCALE_MANAGER_V1_ERROR_FRACTIONAL_SCALE_EXISTS = 0,
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};
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#endif /* WP_FRACTIONAL_SCALE_MANAGER_V1_ERROR_ENUM */
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#define WP_FRACTIONAL_SCALE_MANAGER_V1_DESTROY 0
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#define WP_FRACTIONAL_SCALE_MANAGER_V1_GET_FRACTIONAL_SCALE 1
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/**
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* @ingroup iface_wp_fractional_scale_manager_v1
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*/
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#define WP_FRACTIONAL_SCALE_MANAGER_V1_DESTROY_SINCE_VERSION 1
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/**
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* @ingroup iface_wp_fractional_scale_manager_v1
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*/
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#define WP_FRACTIONAL_SCALE_MANAGER_V1_GET_FRACTIONAL_SCALE_SINCE_VERSION 1
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/** @ingroup iface_wp_fractional_scale_manager_v1 */
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static inline void
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wp_fractional_scale_manager_v1_set_user_data(struct wp_fractional_scale_manager_v1 *wp_fractional_scale_manager_v1, void *user_data)
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{
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wl_proxy_set_user_data((struct wl_proxy *) wp_fractional_scale_manager_v1, user_data);
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}
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/** @ingroup iface_wp_fractional_scale_manager_v1 */
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static inline void *
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wp_fractional_scale_manager_v1_get_user_data(struct wp_fractional_scale_manager_v1 *wp_fractional_scale_manager_v1)
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{
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return wl_proxy_get_user_data((struct wl_proxy *) wp_fractional_scale_manager_v1);
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}
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static inline uint32_t
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wp_fractional_scale_manager_v1_get_version(struct wp_fractional_scale_manager_v1 *wp_fractional_scale_manager_v1)
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{
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return wl_proxy_get_version((struct wl_proxy *) wp_fractional_scale_manager_v1);
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}
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/**
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* @ingroup iface_wp_fractional_scale_manager_v1
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*
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* Informs the server that the client will not be using this protocol
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* object anymore. This does not affect any other objects,
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* wp_fractional_scale_v1 objects included.
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*/
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static inline void
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wp_fractional_scale_manager_v1_destroy(struct wp_fractional_scale_manager_v1 *wp_fractional_scale_manager_v1)
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{
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wl_proxy_marshal_flags((struct wl_proxy *) wp_fractional_scale_manager_v1,
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WP_FRACTIONAL_SCALE_MANAGER_V1_DESTROY, NULL, wl_proxy_get_version((struct wl_proxy *) wp_fractional_scale_manager_v1), WL_MARSHAL_FLAG_DESTROY);
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}
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/**
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* @ingroup iface_wp_fractional_scale_manager_v1
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*
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* Create an add-on object for the the wl_surface to let the compositor
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* request fractional scales. If the given wl_surface already has a
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* wp_fractional_scale_v1 object associated, the fractional_scale_exists
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* protocol error is raised.
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*/
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static inline struct wp_fractional_scale_v1 *
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wp_fractional_scale_manager_v1_get_fractional_scale(struct wp_fractional_scale_manager_v1 *wp_fractional_scale_manager_v1, struct wl_surface *surface)
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{
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struct wl_proxy *id;
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id = wl_proxy_marshal_flags((struct wl_proxy *) wp_fractional_scale_manager_v1,
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WP_FRACTIONAL_SCALE_MANAGER_V1_GET_FRACTIONAL_SCALE, &wp_fractional_scale_v1_interface, wl_proxy_get_version((struct wl_proxy *) wp_fractional_scale_manager_v1), 0, NULL, surface);
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return (struct wp_fractional_scale_v1 *) id;
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}
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/**
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* @ingroup iface_wp_fractional_scale_v1
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* @struct wp_fractional_scale_v1_listener
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*/
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struct wp_fractional_scale_v1_listener {
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/**
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* notify of new preferred scale
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*
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* Notification of a new preferred scale for this surface that
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* the compositor suggests that the client should use.
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*
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* The sent scale is the numerator of a fraction with a denominator
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* of 120.
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* @param scale the new preferred scale
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*/
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void (*preferred_scale)(void *data,
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struct wp_fractional_scale_v1 *wp_fractional_scale_v1,
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uint32_t scale);
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};
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/**
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* @ingroup iface_wp_fractional_scale_v1
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*/
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static inline int
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wp_fractional_scale_v1_add_listener(struct wp_fractional_scale_v1 *wp_fractional_scale_v1,
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const struct wp_fractional_scale_v1_listener *listener, void *data)
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{
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return wl_proxy_add_listener((struct wl_proxy *) wp_fractional_scale_v1,
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(void (**)(void)) listener, data);
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}
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#define WP_FRACTIONAL_SCALE_V1_DESTROY 0
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/**
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* @ingroup iface_wp_fractional_scale_v1
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*/
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#define WP_FRACTIONAL_SCALE_V1_PREFERRED_SCALE_SINCE_VERSION 1
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/**
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* @ingroup iface_wp_fractional_scale_v1
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*/
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#define WP_FRACTIONAL_SCALE_V1_DESTROY_SINCE_VERSION 1
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/** @ingroup iface_wp_fractional_scale_v1 */
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static inline void
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wp_fractional_scale_v1_set_user_data(struct wp_fractional_scale_v1 *wp_fractional_scale_v1, void *user_data)
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{
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wl_proxy_set_user_data((struct wl_proxy *) wp_fractional_scale_v1, user_data);
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}
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/** @ingroup iface_wp_fractional_scale_v1 */
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static inline void *
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wp_fractional_scale_v1_get_user_data(struct wp_fractional_scale_v1 *wp_fractional_scale_v1)
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{
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return wl_proxy_get_user_data((struct wl_proxy *) wp_fractional_scale_v1);
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}
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static inline uint32_t
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wp_fractional_scale_v1_get_version(struct wp_fractional_scale_v1 *wp_fractional_scale_v1)
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{
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return wl_proxy_get_version((struct wl_proxy *) wp_fractional_scale_v1);
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}
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/**
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* @ingroup iface_wp_fractional_scale_v1
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*
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* Destroy the fractional scale object. When this object is destroyed,
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* preferred_scale events will no longer be sent.
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*/
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static inline void
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wp_fractional_scale_v1_destroy(struct wp_fractional_scale_v1 *wp_fractional_scale_v1)
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{
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wl_proxy_marshal_flags((struct wl_proxy *) wp_fractional_scale_v1,
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WP_FRACTIONAL_SCALE_V1_DESTROY, NULL, wl_proxy_get_version((struct wl_proxy *) wp_fractional_scale_v1), WL_MARSHAL_FLAG_DESTROY);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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