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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2021 - 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/>.
*/
#include <stdint.h>
#include <libretro.h>
#include <string/stdstring.h>
#include "../configuration.h"
#include "../driver.h"
#include "../list_special.h"
#include "../runloop.h"
#include "../verbosity.h"
#include "camera_driver.h"
#if defined(HAVE_FFMPEG) && defined(HAVE_AVFORMAT) && defined(HAVE_AVCODEC) && \
defined(HAVE_AVDEVICE) && defined(HAVE_AVUTIL) && defined(HAVE_SWSCALE)
/* FFMPEG consists of several libraries, and the camera driver needs most of them */
#define HAVE_FFMPEG_CAMERA
#endif
static void *nullcamera_init(const char *device, uint64_t caps,
unsigned width, unsigned height) { return (void*)-1; }
static void nullcamera_free(void *data) { }
static void nullcamera_stop(void *data) { }
static bool nullcamera_start(void *data) { return true; }
static bool nullcamera_poll(void *a,
retro_camera_frame_raw_framebuffer_t b,
retro_camera_frame_opengl_texture_t c) { return true; }
static camera_driver_t camera_null = {
nullcamera_init,
nullcamera_free,
nullcamera_start,
nullcamera_stop,
nullcamera_poll,
"null",
};
const camera_driver_t *camera_drivers[] = {
#ifdef HAVE_V4L2
&camera_v4l2,
#endif
#if defined(HAVE_PIPEWIRE) && defined(HAVE_PIPEWIRE_STABLE)
&camera_pipewire,
#endif
#ifdef EMSCRIPTEN
&camera_rwebcam,
#endif
#ifdef ANDROID
&camera_android,
#endif
#ifdef HAVE_AVF
&camera_avfoundation,
#endif
#ifdef HAVE_FFMPEG_CAMERA
&camera_ffmpeg,
#endif
&camera_null,
NULL,
};
static camera_driver_state_t camera_driver_st = {0};
camera_driver_state_t *camera_state_get_ptr(void)
{
return &camera_driver_st;
}
/**
* 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)
{
return char_list_new_special(STRING_LIST_CAMERA_DRIVERS, NULL);
}
bool driver_camera_start(void)
{
camera_driver_state_t *camera_st = &camera_driver_st;
if ( camera_st
&& camera_st->data
&& camera_st->driver
&& camera_st->driver->start)
{
settings_t *settings = config_get_ptr();
bool camera_allow = settings->bools.camera_allow;
if (camera_allow)
return camera_st->driver->start(camera_st->data);
runloop_msg_queue_push(
"Camera is explicitly disabled.\n",
STRLEN_CONST("Camera is explicitly disabled.\n"),
1, 180, false,
NULL, MESSAGE_QUEUE_ICON_DEFAULT, MESSAGE_QUEUE_CATEGORY_INFO);
}
return true;
}
void driver_camera_stop(void)
{
camera_driver_state_t *camera_st = &camera_driver_st;
if ( camera_st->driver
&& camera_st->driver->stop
&& camera_st->data)
camera_st->driver->stop(camera_st->data);
}
bool camera_driver_find_driver(const char *prefix,
bool verbosity_enabled)
{
settings_t *settings = config_get_ptr();
camera_driver_state_t
*camera_st = &camera_driver_st;
int i = (int)driver_find_index(
"camera_driver",
settings->arrays.camera_driver);
if (i >= 0)
camera_st->driver = (const camera_driver_t*)camera_drivers[i];
else
{
if (verbosity_enabled)
{
unsigned d;
RARCH_ERR("Couldn't find any %s named \"%s\"\n", prefix,
settings->arrays.camera_driver);
RARCH_LOG_OUTPUT("Available %ss are:\n", prefix);
for (d = 0; camera_drivers[d]; d++)
{
if (camera_drivers[d])
{
RARCH_LOG_OUTPUT("\t%s\n", camera_drivers[d]->ident);
}
}
RARCH_WARN("Going to default to first %s...\n", prefix);
}
if (!(camera_st->driver = (const camera_driver_t*)camera_drivers[0]))
return false;
}
return true;
}
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