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/*
* This program 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 Foundation; either version 2
* 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 General Public License for more details.
*
* You should have received a copy of the GNU 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.
*/
/** \file
* \ingroup wm
*/
#ifndef __WM_XR_INTERN_H__
#define __WM_XR_INTERN_H__
#include "CLG_log.h"
#include "wm_xr.h"
typedef struct wmXrSessionState {
bool is_started;
/** Last known viewer pose (centroid of eyes, in world space) stored for queries. */
GHOST_XrPose viewer_pose;
/** The last known view matrix, calculated from above's viewer pose. */
float viewer_viewmat[4][4];
float focal_len;
/** Copy of XrSessionSettings.base_pose_ data to detect changes that need
* resetting to base pose. */
char prev_base_pose_type; /* eXRSessionBasePoseType */
Object *prev_base_pose_object;
/** Copy of XrSessionSettings.flag created on the last draw call, stored to detect changes. */
int prev_settings_flag;
/** Copy of wmXrDrawData.eye_position_ofs. */
float prev_eye_position_ofs[3];
bool force_reset_to_base_pose;
bool is_view_data_set;
GHOST_XrPose world_pose;
float world_scale;
} wmXrSessionState;
typedef struct wmXrRuntimeData {
GHOST_XrContextHandle context;
/* Although this struct is internal, RNA gets a handle to this for state information queries. */
wmXrSessionState session_state;
wmXrSessionExitFn exit_fn;
} wmXrRuntimeData;
typedef struct {
struct GPUOffScreen *offscreen;
struct GPUViewport *viewport;
} wmXrSurfaceData;
typedef struct wmXrDrawData {
struct Scene *scene;
struct Depsgraph *depsgraph;
wmXrData *xr_data;
wmXrSurfaceData *surface_data;
/** The pose (location + rotation) to which eye deltas will be applied to when drawing (world
* space). With positional tracking enabled, it should be the same as the base pose, when
* disabled it also contains a location delta from the moment the option was toggled. */
GHOST_XrPose base_pose;
float eye_position_ofs[3]; /* Local/view space. */
} wmXrDrawData;
wmXrRuntimeData *wm_xr_runtime_data_create(void);
void wm_xr_runtime_data_free(wmXrRuntimeData **runtime);
void wm_xr_session_draw_data_update(const wmXrSessionState *state,
const XrSessionSettings *settings,
const GHOST_XrDrawViewInfo *draw_view,
wmXrDrawData *draw_data);
void wm_xr_session_state_update(const XrSessionSettings *settings,
const wmXrDrawData *draw_data,
const GHOST_XrDrawViewInfo *draw_view,
wmXrSessionState *state,
float viewmat[4][4]);
bool wm_xr_session_surface_offscreen_ensure(wmXrSurfaceData *surface_data,
const GHOST_XrDrawViewInfo *draw_view);
void *wm_xr_session_gpu_binding_context_create(void);
void wm_xr_session_gpu_binding_context_destroy(GHOST_ContextHandle context);
void wm_xr_pose_to_viewmat(const GHOST_XrPose *pose, float r_viewmat[4][4]);
void wm_xr_draw_view(const GHOST_XrDrawViewInfo *draw_view, void *customdata);
void wm_xr_session_controller_transform_update(GHOST_XrPose *dst_pose,
const GHOST_XrPose *base_pose,
const GHOST_XrPose *pose);
#endif
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