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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 __CAMERA_DRIVER__H
#define __CAMERA_DRIVER__H
#include <stdint.h>
#include <boolean.h>
#include <retro_common_api.h>
#include <libretro.h>
RETRO_BEGIN_DECLS
enum rarch_camera_ctl_state
{
RARCH_CAMERA_CTL_NONE = 0,
RARCH_CAMERA_CTL_DESTROY,
RARCH_CAMERA_CTL_DEINIT,
RARCH_CAMERA_CTL_SET_OWN_DRIVER,
RARCH_CAMERA_CTL_UNSET_OWN_DRIVER,
RARCH_CAMERA_CTL_OWNS_DRIVER,
RARCH_CAMERA_CTL_SET_ACTIVE,
RARCH_CAMERA_CTL_UNSET_ACTIVE,
RARCH_CAMERA_CTL_IS_ACTIVE,
RARCH_CAMERA_CTL_FIND_DRIVER,
RARCH_CAMERA_CTL_SET_CB,
RARCH_CAMERA_CTL_STOP,
RARCH_CAMERA_CTL_START,
RARCH_CAMERA_CTL_INIT
};
typedef struct camera_driver
{
/* FIXME: params for initialization - queries for resolution,
* framerate, color format which might or might not be honored. */
void *(*init)(const char *device, uint64_t buffer_types,
unsigned width, unsigned height);
void (*free)(void *data);
bool (*start)(void *data);
void (*stop)(void *data);
/* Polls the camera driver.
* Will call the appropriate callback if a new frame is ready.
* Returns true if a new frame was handled. */
bool (*poll)(void *data,
retro_camera_frame_raw_framebuffer_t frame_raw_cb,
retro_camera_frame_opengl_texture_t frame_gl_cb);
const char *ident;
} camera_driver_t;
extern camera_driver_t camera_v4l2;
extern camera_driver_t camera_android;
extern camera_driver_t camera_rwebcam;
extern camera_driver_t camera_avfoundation;
extern camera_driver_t camera_null;
/**
* config_get_camera_driver_options:
*
* Get an enumerated list of all camera driver names,
* separated by '|'.
*
* Returns: string listing of all camera driver names,
* separated by '|'.
**/
const char* config_get_camera_driver_options(void);
/**
* camera_driver_find_handle:
* @index : index of driver to get handle to.
*
* Returns: handle to camera driver at index. Can be NULL
* if nothing found.
**/
const void *camera_driver_find_handle(int index);
/**
* camera_driver_find_ident:
* @index : index of driver to get handle to.
*
* Returns: Human-readable identifier of camera driver at index. Can be NULL
* if nothing found.
**/
const char *camera_driver_find_ident(int index);
void driver_camera_stop(void);
bool driver_camera_start(void);
void camera_driver_poll(void);
bool camera_driver_ctl(enum rarch_camera_ctl_state state, void *data);
RETRO_END_DECLS
#endif
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