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cfc402db39
Add a command to read edit settings from CMOS RAM, using the cedit definition to indicate which registers and bits are used. Signed-off-by: Simon Glass <sjg@chromium.org>
250 lines
6.8 KiB
C
250 lines
6.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Internal header file for scenes
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*
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* Copyright 2022 Google LLC
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#ifndef __SCENE_INTERNAL_H
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#define __SCENE_INTERNAL_H
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typedef int (*expo_scene_obj_iterator)(struct scene_obj *obj, void *priv);
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/**
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* expo_lookup_scene_id() - Look up a scene ID
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*
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* @exp: Expo to use
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* @id: scene ID to look up
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* Returns: Scene for that ID, or NULL if none
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*/
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struct scene *expo_lookup_scene_id(struct expo *exp, uint scene_id);
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/**
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* resolve_id() - Automatically allocate an ID if needed
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*
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* @exp: Expo to use
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* @id: ID to use, or 0 to auto-allocate one
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* Returns: Either @id, or the auto-allocated ID
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*/
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uint resolve_id(struct expo *exp, uint id);
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/**
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* scene_obj_find() - Find an object in a scene
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*
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* Note that @type is used to restrict the search when the object type is known.
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* If any type is acceptable, set @type to SCENEOBJT_NONE
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*
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* @scn: Scene to search
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* @id: ID of object to find
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* @type: Type of the object, or SCENEOBJT_NONE to match any type
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* Returns: Object found, or NULL if not found
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*/
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void *scene_obj_find(const struct scene *scn, uint id, enum scene_obj_t type);
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/**
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* scene_obj_find_by_name() - Find an object in a scene by name
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*
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* @scn: Scene to search
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* @name: Name to search for
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*/
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void *scene_obj_find_by_name(struct scene *scn, const char *name);
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/**
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* scene_obj_add() - Add a new object to a scene
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*
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* @scn: Scene to update
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* @name: Name to use (this is allocated by this call)
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* @id: ID to use for the new object (0 to allocate one)
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* @type: Type of object to add
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* @size: Size to allocate for the object, in bytes
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* @objp: Returns a pointer to the new object (must not be NULL)
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* Returns: ID number for the object (generally @id), or -ve on error
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*/
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int scene_obj_add(struct scene *scn, const char *name, uint id,
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enum scene_obj_t type, uint size, struct scene_obj **objp);
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/**
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* scene_obj_flag_clrset() - Adjust object flags
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*
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* @scn: Scene to update
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* @id: ID of object to update
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* @clr: Bits to clear in the object's flags
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* @set: Bits to set in the object's flags
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* Returns 0 if OK, -ENOENT if the object was not found
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*/
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int scene_obj_flag_clrset(struct scene *scn, uint id, uint clr, uint set);
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/**
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* scene_calc_dims() - Calculate the dimensions of the scene objects
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*
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* Updates the width and height of all objects based on their contents
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*
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* @scn: Scene to update
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* @do_menus: true to calculate only menus, false to calculate everything else
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* Returns 0 if OK, -ENOTSUPP if there is no graphical console
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*/
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int scene_calc_dims(struct scene *scn, bool do_menus);
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/**
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* scene_menu_arrange() - Set the position of things in the menu
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*
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* This updates any items associated with a menu to make sure they are
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* positioned correctly relative to the menu. It also selects the first item
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* if not already done
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*
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* @scn: Scene to update
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* @menu: Menu to process
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* Returns: 0 if OK, -ve on error
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*/
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int scene_menu_arrange(struct scene *scn, struct scene_obj_menu *menu);
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/**
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* scene_apply_theme() - Apply a theme to a scene
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*
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* @scn: Scene to update
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* @theme: Theme to apply
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* Returns: 0 if OK, -ve on error
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*/
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int scene_apply_theme(struct scene *scn, struct expo_theme *theme);
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/**
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* scene_menu_send_key() - Send a key to a menu for processing
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*
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* @scn: Scene to use
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* @menu: Menu to use
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* @key: Key code to send (KEY_...)
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* @event: Place to put any event which is generated by the key
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* Returns: 0 if OK, -ENOTTY if there is no current menu item, other -ve on other
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* error
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*/
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int scene_menu_send_key(struct scene *scn, struct scene_obj_menu *menu, int key,
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struct expo_action *event);
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/**
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* scene_menu_destroy() - Destroy a menu in a scene
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*
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* @scn: Scene to destroy
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*/
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void scene_menu_destroy(struct scene_obj_menu *menu);
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/**
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* scene_menu_display() - Display a menu as text
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*
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* @menu: Menu to display
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* Returns: 0 if OK, -ENOENT if @id is invalid
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*/
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int scene_menu_display(struct scene_obj_menu *menu);
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/**
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* scene_destroy() - Destroy a scene and all its memory
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*
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* @scn: Scene to destroy
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*/
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void scene_destroy(struct scene *scn);
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/**
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* scene_render() - Render a scene
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*
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* This is called from expo_render()
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*
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* @scn: Scene to render
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* Returns: 0 if OK, -ve on error
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*/
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int scene_render(struct scene *scn);
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/**
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* scene_send_key() - set a keypress to a scene
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*
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* @scn: Scene to receive the key
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* @key: Key to send (KEYCODE_UP)
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* @event: Returns resulting event from this keypress
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* Returns: 0 if OK, -ve on error
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*/
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int scene_send_key(struct scene *scn, int key, struct expo_action *event);
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/**
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* scene_menu_render() - Render the background behind a menu
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*
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* @menu: Menu to render
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*/
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void scene_menu_render(struct scene_obj_menu *menu);
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/**
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* scene_render_deps() - Render an object and its dependencies
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*
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* @scn: Scene to render
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* @id: Object ID to render (or 0 for none)
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* Returns: 0 if OK, -ve on error
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*/
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int scene_render_deps(struct scene *scn, uint id);
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/**
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* scene_menu_render_deps() - Render a menu and its dependencies
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*
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* Renders the menu and all of its attached objects
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*
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* @scn: Scene to render
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* @menu: Menu render
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* Returns: 0 if OK, -ve on error
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*/
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int scene_menu_render_deps(struct scene *scn, struct scene_obj_menu *menu);
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/**
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* scene_menu_calc_dims() - Calculate the dimensions of a menu
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*
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* Updates the width and height of the menu based on its contents
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*
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* @menu: Menu to update
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* Returns 0 if OK, -ENOTSUPP if there is no graphical console
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*/
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int scene_menu_calc_dims(struct scene_obj_menu *menu);
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/**
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* scene_iter_objs() - Iterate through all scene objects
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*
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* @scn: Scene to process
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* @iter: Iterator to call on each object
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* @priv: Private data to pass to the iterator, in addition to the object
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* Return: 0 if OK, -ve on error
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*/
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int scene_iter_objs(struct scene *scn, expo_scene_obj_iterator iter,
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void *priv);
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/**
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* expo_iter_scene_objects() - Iterate through all scene objects
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*
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* @exp: Expo to process
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* @iter: Iterator to call on each object
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* @priv: Private data to pass to the iterator, in addition to the object
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* Return: 0 if OK, -ve on error
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*/
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int expo_iter_scene_objs(struct expo *exp, expo_scene_obj_iterator iter,
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void *priv);
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/**
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* scene_menuitem_find() - Find the menu item for an ID
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*
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* Looks up the menu to find the item with the given ID
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*
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* @menu: Menu to check
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* @id: ID to look for
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* Return: Menu item, or NULL if not found
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*/
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struct scene_menitem *scene_menuitem_find(const struct scene_obj_menu *menu,
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int id);
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/**
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* scene_menuitem_find_seq() - Find the menu item at a sequential position
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*
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* This numbers the items from 0 and returns the seq'th one
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*
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* @menu: Menu to check
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* @seq: Sequence number to look for
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* Return: menu item if found, else NULL
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*/
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struct scene_menitem *scene_menuitem_find_seq(const struct scene_obj_menu *menu,
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uint seq);
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#endif /* __SCENE_INTERNAL_H */
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