driver.h

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/* RetroArch - A frontend for libretro.
 * Copyright (C) 2010-2014 - Hans-Kristian Arntzen
 * Copyright (C) 2011-2017 - Daniel De Matteis
 *
 * RetroArch is free software: you can redistribute it and/or modify it under the terms
 * of the GNU General Public License as published by the Free Software Found-
 * ation, either version 3 of the License, or (at your option) any later version.
 *
 * RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with RetroArch.
 * If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __RARCH_DRIVER__H
#define __RARCH_DRIVER__H

#include <stdint.h>
#include <stdlib.h>
#include <sys/types.h>

#include <boolean.h>
#include <retro_common_api.h>

RETRO_BEGIN_DECLS

#define DRIVERS_CMD_ALL \
 ( DRIVER_AUDIO_MASK \
 | DRIVER_VIDEO_MASK \
 | DRIVER_INPUT_MASK \
 | DRIVER_CAMERA_MASK \
 | DRIVER_LOCATION_MASK \
 | DRIVER_MENU_MASK \
 | DRIVERS_VIDEO_INPUT_MASK \
 | DRIVER_WIFI_MASK \
 | DRIVER_LED_MASK \
 | DRIVER_MIDI_MASK )

#define DRIVERS_CMD_ALL_BUT_MENU \
 ( DRIVER_AUDIO_MASK \
 | DRIVER_VIDEO_MASK \
 | DRIVER_INPUT_MASK \
 | DRIVER_CAMERA_MASK \
 | DRIVER_LOCATION_MASK \
 | DRIVERS_VIDEO_INPUT_MASK \
 | DRIVER_WIFI_MASK \
 | DRIVER_LED_MASK \
 | DRIVER_MIDI_MASK )

enum
{
 DRIVER_AUDIO = 0,
 DRIVER_VIDEO,
 DRIVER_INPUT,
 DRIVER_CAMERA,
 DRIVER_LOCATION,
 DRIVER_MENU,
 DRIVERS_VIDEO_INPUT,
 DRIVER_WIFI,
 DRIVER_LED,
 DRIVER_MIDI
};

enum
{
 DRIVER_AUDIO_MASK = 1 << DRIVER_AUDIO,
 DRIVER_VIDEO_MASK = 1 << DRIVER_VIDEO,
 DRIVER_INPUT_MASK = 1 << DRIVER_INPUT,
 DRIVER_CAMERA_MASK = 1 << DRIVER_CAMERA,
 DRIVER_LOCATION_MASK = 1 << DRIVER_LOCATION,
 DRIVER_MENU_MASK = 1 << DRIVER_MENU,
 DRIVERS_VIDEO_INPUT_MASK = 1 << DRIVERS_VIDEO_INPUT,
 DRIVER_WIFI_MASK = 1 << DRIVER_WIFI,
 DRIVER_LED_MASK = 1 << DRIVER_LED,
 DRIVER_MIDI_MASK = 1 << DRIVER_MIDI
};

enum driver_ctl_state
{
 RARCH_DRIVER_CTL_NONE = 0,
 RARCH_DRIVER_CTL_DEINIT,

 /* Attempts to find a default driver for
 * all driver types.
 *
 * Should be run before RARCH_DRIVER_CTL_INIT.
 */
 RARCH_DRIVER_CTL_INIT_PRE,

 /* Sets monitor refresh rate to new value by calling
 * video_monitor_set_refresh_rate(). Subsequently
 * calls audio_monitor_set_refresh_rate(). */
 RARCH_DRIVER_CTL_SET_REFRESH_RATE,

 /* Update the system Audio/Video information.
 * Will reinitialize audio/video drivers.
 * Used by RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO. */
 RARCH_DRIVER_CTL_UPDATE_SYSTEM_AV_INFO,

 RARCH_DRIVER_CTL_FIND_FIRST,

 RARCH_DRIVER_CTL_FIND_LAST,

 RARCH_DRIVER_CTL_FIND_PREV,

 RARCH_DRIVER_CTL_FIND_NEXT,

 /* Find index of the driver, based on @label. */
 RARCH_DRIVER_CTL_FIND_INDEX

};

typedef struct driver_ctx_info
{
 const char *label;
 char *s;
 ssize_t len;
} driver_ctx_info_t;

bool driver_ctl(enum driver_ctl_state state, void *data);

/* Sets audio and video drivers to nonblock state.
 *
 * If nonblock state is false, sets blocking state for both
 * audio and video drivers instead. */
void driver_set_nonblock_state(void);

void driver_uninit(int flags);

void drivers_init(int flags);

RETRO_END_DECLS

#endif