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driver.h
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driver.h
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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2016 - 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 <compat/posix_string.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define AUDIO_CHUNK_SIZE_BLOCKING 512
/* So we don't get complete line-noise when fast-forwarding audio. */
#define AUDIO_CHUNK_SIZE_NONBLOCKING 2048
#define AUDIO_MAX_RATIO 16
/* Specialized _MOUSE that targets the full screen regardless of viewport.
*/
#define RARCH_DEVICE_MOUSE_SCREEN (RETRO_DEVICE_MOUSE | 0x10000)
/* Specialized _POINTER that targets the full screen regardless of viewport.
* Should not be used by a libretro implementation as coordinates returned
* make no sense.
*
* It is only used internally for overlays. */
#define RARCH_DEVICE_POINTER_SCREEN (RETRO_DEVICE_POINTER | 0x10000)
#define RARCH_DEVICE_ID_POINTER_BACK (RETRO_DEVICE_ID_POINTER_PRESSED | 0x10000)
/* libretro has 16 buttons from 0-15 (libretro.h)
* Analog binds use RETRO_DEVICE_ANALOG, but we follow the same scheme
* internally in RetroArch for simplicity, so they are mapped into [16, 23].
*/
#define RARCH_FIRST_CUSTOM_BIND 16
#define RARCH_FIRST_META_KEY RARCH_CUSTOM_BIND_LIST_END
#define AXIS_NEG(x) (((uint32_t)(x) << 16) | UINT16_C(0xFFFF))
#define AXIS_POS(x) ((uint32_t)(x) | UINT32_C(0xFFFF0000))
#define AXIS_NONE UINT32_C(0xFFFFFFFF)
#define AXIS_DIR_NONE UINT16_C(0xFFFF)
#define AXIS_NEG_GET(x) (((uint32_t)(x) >> 16) & UINT16_C(0xFFFF))
#define AXIS_POS_GET(x) ((uint32_t)(x) & UINT16_C(0xFFFF))
#define NO_BTN UINT16_C(0xFFFF)
#define HAT_UP_SHIFT 15
#define HAT_DOWN_SHIFT 14
#define HAT_LEFT_SHIFT 13
#define HAT_RIGHT_SHIFT 12
#define HAT_UP_MASK (1 << HAT_UP_SHIFT)
#define HAT_DOWN_MASK (1 << HAT_DOWN_SHIFT)
#define HAT_LEFT_MASK (1 << HAT_LEFT_SHIFT)
#define HAT_RIGHT_MASK (1 << HAT_RIGHT_SHIFT)
#define HAT_MAP(x, hat) ((x & ((1 << 12) - 1)) | hat)
#define HAT_MASK (HAT_UP_MASK | HAT_DOWN_MASK | HAT_LEFT_MASK | HAT_RIGHT_MASK)
#define GET_HAT_DIR(x) (x & HAT_MASK)
#define GET_HAT(x) (x & (~HAT_MASK))
#define DRIVERS_CMD_ALL \
( DRIVER_AUDIO \
| DRIVER_VIDEO \
| DRIVER_INPUT \
| DRIVER_CAMERA \
| DRIVER_LOCATION \
| DRIVER_MENU \
| DRIVERS_VIDEO_INPUT )
/* RetroArch specific bind IDs. */
enum
{
/* Custom binds that extend the scope of RETRO_DEVICE_JOYPAD for
* RetroArch specifically.
* Analogs (RETRO_DEVICE_ANALOG) */
RARCH_ANALOG_LEFT_X_PLUS = RARCH_FIRST_CUSTOM_BIND,
RARCH_ANALOG_LEFT_X_MINUS,
RARCH_ANALOG_LEFT_Y_PLUS,
RARCH_ANALOG_LEFT_Y_MINUS,
RARCH_ANALOG_RIGHT_X_PLUS,
RARCH_ANALOG_RIGHT_X_MINUS,
RARCH_ANALOG_RIGHT_Y_PLUS,
RARCH_ANALOG_RIGHT_Y_MINUS,
/* Turbo */
RARCH_TURBO_ENABLE,
RARCH_CUSTOM_BIND_LIST_END,
/* Command binds. Not related to game input,
* only usable for port 0. */
RARCH_FAST_FORWARD_KEY = RARCH_FIRST_META_KEY,
RARCH_FAST_FORWARD_HOLD_KEY,
RARCH_LOAD_STATE_KEY,
RARCH_SAVE_STATE_KEY,
RARCH_FULLSCREEN_TOGGLE_KEY,
RARCH_QUIT_KEY,
RARCH_STATE_SLOT_PLUS,
RARCH_STATE_SLOT_MINUS,
RARCH_REWIND,
RARCH_MOVIE_RECORD_TOGGLE,
RARCH_PAUSE_TOGGLE,
RARCH_FRAMEADVANCE,
RARCH_RESET,
RARCH_SHADER_NEXT,
RARCH_SHADER_PREV,
RARCH_CHEAT_INDEX_PLUS,
RARCH_CHEAT_INDEX_MINUS,
RARCH_CHEAT_TOGGLE,
RARCH_SCREENSHOT,
RARCH_MUTE,
RARCH_OSK,
RARCH_NETPLAY_FLIP,
RARCH_SLOWMOTION,
RARCH_ENABLE_HOTKEY,
RARCH_VOLUME_UP,
RARCH_VOLUME_DOWN,
RARCH_OVERLAY_NEXT,
RARCH_DISK_EJECT_TOGGLE,
RARCH_DISK_NEXT,
RARCH_DISK_PREV,
RARCH_GRAB_MOUSE_TOGGLE,
RARCH_MENU_TOGGLE,
RARCH_BIND_LIST_END,
RARCH_BIND_LIST_END_NULL
};
enum analog_dpad_mode
{
ANALOG_DPAD_NONE = 0,
ANALOG_DPAD_LSTICK,
ANALOG_DPAD_RSTICK,
ANALOG_DPAD_LAST
};
enum
{
DRIVER_AUDIO = 1 << 0,
DRIVER_VIDEO = 1 << 1,
DRIVER_INPUT = 1 << 2,
DRIVER_CAMERA = 1 << 3,
DRIVER_LOCATION = 1 << 4,
DRIVER_MENU = 1 << 5,
DRIVERS_VIDEO_INPUT = 1 << 6
};
enum driver_ctl_state
{
RARCH_DRIVER_CTL_NONE = 0,
RARCH_DRIVER_CTL_DEINIT,
/* Deinitializes drivers.
* @data is a bitmask which determines
* which drivers get deinitialized. */
RARCH_DRIVER_CTL_UNINIT,
/* Initializes drivers.
* @data is a bitmask which determines
* which drivers get initialized. */
RARCH_DRIVER_CTL_INIT,
/* 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,
/* Sets audio and video drivers to nonblock state.
*
* If nonblock state is false, sets blocking state for both
* audio and video drivers instead. */
RARCH_DRIVER_CTL_SET_NONBLOCK_STATE,
/* 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_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);
#ifdef __cplusplus
}
#endif
#endif