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disk_control_interface.h 5.72 KB
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twinaphex 提交于 2020-08-14 21:00 . More struct reordering/alignment
/* Copyright (C) 2010-2020 The RetroArch team
*
* ---------------------------------------------------------------------------------------
* The following license statement only applies to this file (disk_control_interface.h).
* ---------------------------------------------------------------------------------------
*
* 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 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 __DISK_CONTROL_INTERFACE_H
#define __DISK_CONTROL_INTERFACE_H
#include <retro_common_api.h>
#include <libretro.h>
#include <boolean.h>
#include "disk_index_file.h"
RETRO_BEGIN_DECLS
/* Holds all all objects to operate the disk
* control interface */
typedef struct
{
struct retro_disk_control_ext_callback cb; /* ptr alignment */
disk_index_file_t index_record; /* unsigned alignment */
unsigned initial_num_images;
bool record_enabled;
} disk_control_interface_t;
/*****************/
/* Configuration */
/*****************/
/* Set v0 disk interface callback functions */
void disk_control_set_callback(
disk_control_interface_t *disk_control,
const struct retro_disk_control_callback *cb);
/* Set v1+ disk interface callback functions */
void disk_control_set_ext_callback(
disk_control_interface_t *disk_control,
const struct retro_disk_control_ext_callback *cb);
/**********/
/* Status */
/**********/
/* Returns true if core supports basic disk
* control functionality
* - set_eject_state
* - get_eject_state
* - get_image_index
* - set_image_index
* - get_num_images */
bool disk_control_enabled(
disk_control_interface_t *disk_control);
/* Returns true if core supports disk append
* functionality
* - replace_image_index
* - add_image_index */
bool disk_control_append_enabled(
disk_control_interface_t *disk_control);
/* Returns true if core supports image
* labels
* - get_image_label */
bool disk_control_image_label_enabled(
disk_control_interface_t *disk_control);
/* Returns true if core supports setting
* initial disk index
* - set_initial_image
* - get_image_path */
bool disk_control_initial_image_enabled(
disk_control_interface_t *disk_control);
/***********/
/* Getters */
/***********/
/* Returns true if disk is currently ejected */
bool disk_control_get_eject_state(
disk_control_interface_t *disk_control);
/* Returns number of disk images registered
* by the core */
unsigned disk_control_get_num_images(
disk_control_interface_t *disk_control);
/* Returns currently selected disk image index */
unsigned disk_control_get_image_index(
disk_control_interface_t *disk_control);
/* Fetches core-provided disk image label
* (label is set to an empty string if core
* does not support image labels) */
void disk_control_get_image_label(
disk_control_interface_t *disk_control,
unsigned index, char *label, size_t len);
/***********/
/* Setters */
/***********/
/* Sets the eject state of the virtual disk tray */
bool disk_control_set_eject_state(
disk_control_interface_t *disk_control,
bool eject, bool verbosity);
/* Sets currently selected disk index
* NOTE: Will fail if disk is not currently ejected */
bool disk_control_set_index(
disk_control_interface_t *disk_control,
unsigned index, bool verbosity);
/* Increments selected disk index */
bool disk_control_set_index_next(
disk_control_interface_t *disk_control,
bool verbosity);
/* Decrements selected disk index */
bool disk_control_set_index_prev(
disk_control_interface_t *disk_control,
bool verbosity);
/* Appends specified image file to disk image list */
bool disk_control_append_image(
disk_control_interface_t *disk_control,
const char *image_path);
/*****************************/
/* 'Initial index' functions */
/*****************************/
/* Attempts to set current core's initial disk index.
* > disk_control->record_enabled will be set to
* 'false' if core does not support initial
* index functionality
* > disk_control->index_record will be loaded
* from file (if an existing record is found)
* NOTE: Must be called immediately before
* loading content */
bool disk_control_set_initial_index(
disk_control_interface_t *disk_control,
const char *content_path,
const char *dir_savefile);
/* Checks that initial index has been set correctly
* and provides user notification.
* > Sets disk_control->initial_num_images if
* if functionality is supported by core
* NOTE: Must be called immediately after
* loading content */
bool disk_control_verify_initial_index(
disk_control_interface_t *disk_control,
bool verbosity);
/* Saves current disk index to file, if supported
* by current core */
bool disk_control_save_image_index(
disk_control_interface_t *disk_control);
RETRO_END_DECLS
#endif
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