1/**************************************************************************/
2/* openxr_util.h */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
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12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
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17/* the following conditions: */
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29/**************************************************************************/
30
31#ifndef OPENXR_UTIL_H
32#define OPENXR_UTIL_H
33
34#include "core/string/ustring.h"
35
36#include <openxr/openxr.h>
37
38class OpenXRUtil {
39public:
40 static String get_view_configuration_name(XrViewConfigurationType p_view_configuration);
41 static String get_reference_space_name(XrReferenceSpaceType p_reference_space);
42 static String get_structure_type_name(XrStructureType p_structure_type);
43 static String get_session_state_name(XrSessionState p_session_state);
44 static String get_action_type_name(XrActionType p_action_type);
45 static String get_environment_blend_mode_name(XrEnvironmentBlendMode p_blend_mode);
46 static String make_xr_version_string(XrVersion p_version);
47
48 // Copied from OpenXR xr_linear.h private header, so we can still link against
49 // system-provided packages without relying on our `thirdparty` code.
50
51 // Column-major, pre-multiplied. This type does not exist in the OpenXR API and is provided for convenience.
52 typedef struct XrMatrix4x4f {
53 float m[16];
54 } XrMatrix4x4f;
55
56 typedef enum GraphicsAPI {
57 GRAPHICS_VULKAN,
58 GRAPHICS_OPENGL,
59 GRAPHICS_OPENGL_ES,
60 GRAPHICS_D3D
61 } GraphicsAPI;
62
63 static void XrMatrix4x4f_CreateProjection(XrMatrix4x4f *result, GraphicsAPI graphicsApi, const float tanAngleLeft,
64 const float tanAngleRight, const float tanAngleUp, float const tanAngleDown,
65 const float nearZ, const float farZ);
66 static void XrMatrix4x4f_CreateProjectionFov(XrMatrix4x4f *result, GraphicsAPI graphicsApi, const XrFovf fov,
67 const float nearZ, const float farZ);
68};
69
70#endif // OPENXR_UTIL_H
71