RetroArch/driver-contexts/camera_driver.c

143 lines
4.2 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2014 - 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/>.
*/
static const camera_driver_t *camera_drivers[] = {
#ifdef HAVE_V4L2
&camera_v4l2,
#endif
#ifdef EMSCRIPTEN
&camera_rwebcam,
#endif
#ifdef ANDROID
&camera_android,
#endif
#ifdef IOS
&camera_ios,
#endif
NULL,
};
static int find_camera_driver_index(const char *driver)
{
unsigned i;
for (i = 0; camera_drivers[i]; i++)
if (strcasecmp(driver, camera_drivers[i]->ident) == 0)
return i;
return -1;
}
static void find_camera_driver(void)
{
int i = find_camera_driver_index(g_settings.camera.driver);
if (i >= 0)
driver.camera = camera_drivers[i];
else
{
unsigned d;
RARCH_ERR("Couldn't find any camera driver named \"%s\"\n", g_settings.camera.driver);
RARCH_LOG_OUTPUT("Available camera drivers are:\n");
for (d = 0; camera_drivers[d]; d++)
RARCH_LOG_OUTPUT("\t%s\n", camera_drivers[d]->ident);
rarch_fail(1, "find_camera_driver()");
}
}
void find_prev_camera_driver(void)
{
int i = find_camera_driver_index(g_settings.camera.driver);
if (i > 0)
strlcpy(g_settings.camera.driver, camera_drivers[i - 1]->ident, sizeof(g_settings.camera.driver));
else
RARCH_WARN("Couldn't find any previous camera driver (current one: \"%s\").\n", g_settings.camera.driver);
}
void find_next_camera_driver(void)
{
int i = find_camera_driver_index(g_settings.camera.driver);
if (i >= 0 && camera_drivers[i + 1])
strlcpy(g_settings.camera.driver, camera_drivers[i + 1]->ident, sizeof(g_settings.camera.driver));
else
RARCH_WARN("Couldn't find any next camera driver (current one: \"%s\").\n", g_settings.camera.driver);
}
bool driver_camera_start(void)
{
if (driver.camera && driver.camera_data && driver.camera->start)
{
if (g_settings.camera.allow)
return driver.camera->start(driver.camera_data);
else
msg_queue_push(g_extern.msg_queue, "Camera is explicitly disabled.\n", 1, 180);
return false;
}
else
return false;
}
void driver_camera_stop(void)
{
if (driver.camera && driver.camera->stop && driver.camera_data)
driver.camera->stop(driver.camera_data);
}
void driver_camera_poll(void)
{
if (driver.camera && driver.camera->poll && driver.camera_data)
{
driver.camera->poll(driver.camera_data,
g_extern.system.camera_callback.frame_raw_framebuffer,
g_extern.system.camera_callback.frame_opengl_texture);
}
}
void init_camera(void)
{
// Resource leaks will follow if camera is initialized twice.
if (driver.camera_data)
return;
find_camera_driver();
driver.camera_data = camera_init_func(
*g_settings.camera.device ? g_settings.camera.device : NULL,
g_extern.system.camera_callback.caps,
g_settings.camera.width ? g_settings.camera.width : g_extern.system.camera_callback.width,
g_settings.camera.height ? g_settings.camera.height : g_extern.system.camera_callback.height);
if (!driver.camera_data)
{
RARCH_ERR("Failed to initialize camera driver. Will continue without camera.\n");
g_extern.camera_active = false;
}
if (g_extern.system.camera_callback.initialized)
g_extern.system.camera_callback.initialized();
}
void uninit_camera(void)
{
if (driver.camera_data && driver.camera)
{
if (g_extern.system.camera_callback.deinitialized)
g_extern.system.camera_callback.deinitialized();
if (driver.camera->free)
driver.camera->free(driver.camera_data);
}
driver.camera_data = NULL;
}