mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-28 23:09:59 +02:00
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/*****************************************************************************
|
|
* vlc_viewpoint.h: viewpoint struct and helpers
|
|
*****************************************************************************
|
|
* Copyright (C) 2017 VLC authors and VideoLAN
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 2.1 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
|
|
*****************************************************************************/
|
|
|
|
#ifndef VLC_VIEWPOINT_H_
|
|
#define VLC_VIEWPOINT_H_ 1
|
|
|
|
#include <vlc_common.h>
|
|
|
|
#include <math.h>
|
|
|
|
/**
|
|
* \defgroup output Output
|
|
* \ingroup output
|
|
*
|
|
* @{
|
|
* \file
|
|
* Video and audio viewpoint struct and helpers
|
|
*/
|
|
|
|
#define FIELD_OF_VIEW_DEGREES_DEFAULT 80.f
|
|
#define FIELD_OF_VIEW_DEGREES_MAX 150.f
|
|
#define FIELD_OF_VIEW_DEGREES_MIN 20.f
|
|
|
|
/**
|
|
* Viewpoints
|
|
*/
|
|
struct vlc_viewpoint_t {
|
|
float yaw; /* yaw in degrees */
|
|
float pitch; /* pitch in degrees */
|
|
float roll; /* roll in degrees */
|
|
float fov; /* field of view in degrees */
|
|
};
|
|
|
|
static inline void vlc_viewpoint_init( vlc_viewpoint_t *p_vp )
|
|
{
|
|
p_vp->yaw = p_vp->pitch = p_vp->roll = 0.0f;
|
|
p_vp->fov = FIELD_OF_VIEW_DEGREES_DEFAULT;
|
|
}
|
|
|
|
static inline void vlc_viewpoint_clip( vlc_viewpoint_t *p_vp )
|
|
{
|
|
p_vp->yaw = fmodf( p_vp->yaw, 360.f );
|
|
p_vp->pitch = fmodf( p_vp->pitch, 360.f );
|
|
p_vp->roll = fmodf( p_vp->roll, 360.f );
|
|
p_vp->fov = VLC_CLIP( p_vp->fov, FIELD_OF_VIEW_DEGREES_MIN,
|
|
FIELD_OF_VIEW_DEGREES_MAX );
|
|
}
|
|
|
|
/**@}*/
|
|
|
|
#endif /* VLC_VIEWPOINT_H_ */
|