1/**************************************************************************/
2/* 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/* */
11/* Permission is hereby granted, free of charge, to any person obtaining */
12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
14/* without limitation the rights to use, copy, modify, merge, publish, */
15/* distribute, sublicense, and/or sell copies of the Software, and to */
16/* permit persons to whom the Software is furnished to do so, subject to */
17/* the following conditions: */
18/* */
19/* The above copyright notice and this permission notice shall be */
20/* included in all copies or substantial portions of the Software. */
21/* */
22/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
24/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
25/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
26/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
27/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
28/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29/**************************************************************************/
30
31#ifndef UTIL_H
32#define UTIL_H
33
34#define UNPACK(...) __VA_ARGS__
35
36#define INIT_XR_FUNC_V(openxr_api, name) \
37 do { \
38 XrResult get_instance_proc_addr_result; \
39 get_instance_proc_addr_result = openxr_api->get_instance_proc_addr(#name, (PFN_xrVoidFunction *)&name##_ptr); \
40 ERR_FAIL_COND_V(XR_FAILED(get_instance_proc_addr_result), false); \
41 } while (0)
42
43#define EXT_INIT_XR_FUNC_V(name) INIT_XR_FUNC_V(OpenXRAPI::get_singleton(), name)
44#define OPENXR_API_INIT_XR_FUNC_V(name) INIT_XR_FUNC_V(this, name)
45
46#define INIT_XR_FUNC(openxr_api, name) \
47 do { \
48 XrResult get_instance_proc_addr_result; \
49 get_instance_proc_addr_result = openxr_api->get_instance_proc_addr(#name, (PFN_xrVoidFunction *)&name##_ptr); \
50 ERR_FAIL_COND(XR_FAILED(get_instance_proc_addr_result)); \
51 } while (0)
52
53#define EXT_INIT_XR_FUNC(name) INIT_XR_FUNC(OpenXRAPI::get_singleton(), name)
54#define OPENXR_API_INIT_XR_FUNC(name) INIT_XR_FUNC(this, name)
55
56#define TRY_INIT_XR_FUNC(openxr_api, name) \
57 openxr_api->try_get_instance_proc_addr(#name, (PFN_xrVoidFunction *)&name##_ptr)
58
59#define EXT_TRY_INIT_XR_FUNC(name) TRY_INIT_XR_FUNC(OpenXRAPI::get_singleton(), name)
60#define OPENXR_TRY_API_INIT_XR_FUNC(name) TRY_INIT_XR_FUNC(this, name)
61#define GDEXTENSION_INIT_XR_FUNC(name) \
62 do { \
63 name##_ptr = reinterpret_cast<PFN_##name>(get_openxr_api()->get_instance_proc_addr(#name)); \
64 ERR_FAIL_COND(name##_ptr == nullptr); \
65 } while (0)
66
67#define GDEXTENSION_INIT_XR_FUNC_V(name) \
68 do { \
69 name##_ptr = reinterpret_cast<PFN_##name>(get_openxr_api()->get_instance_proc_addr(#name)); \
70 ERR_FAIL_COND_V(name##_ptr == nullptr, false); \
71 } while (0)
72
73#define EXT_PROTO_XRRESULT_FUNC1(func_name, arg1_type, arg1) \
74 PFN_##func_name func_name##_ptr = nullptr; \
75 XRAPI_ATTR XrResult XRAPI_CALL func_name(UNPACK arg1_type p_##arg1) const { \
76 if (!func_name##_ptr) { \
77 return XR_ERROR_HANDLE_INVALID; \
78 } \
79 return (*func_name##_ptr)(p_##arg1); \
80 }
81
82#define EXT_PROTO_XRRESULT_FUNC2(func_name, arg1_type, arg1, arg2_type, arg2) \
83 PFN_##func_name func_name##_ptr = nullptr; \
84 XRAPI_ATTR XrResult XRAPI_CALL func_name(UNPACK arg1_type p_##arg1, UNPACK arg2_type p_##arg2) const { \
85 if (!func_name##_ptr) { \
86 return XR_ERROR_HANDLE_INVALID; \
87 } \
88 return (*func_name##_ptr)(p_##arg1, p_##arg2); \
89 }
90
91#define EXT_PROTO_XRRESULT_FUNC3(func_name, arg1_type, arg1, arg2_type, arg2, arg3_type, arg3) \
92 PFN_##func_name func_name##_ptr = nullptr; \
93 XRAPI_ATTR XrResult XRAPI_CALL func_name(UNPACK arg1_type p_##arg1, UNPACK arg2_type p_##arg2, UNPACK arg3_type p_##arg3) const { \
94 if (!func_name##_ptr) { \
95 return XR_ERROR_HANDLE_INVALID; \
96 } \
97 return (*func_name##_ptr)(p_##arg1, p_##arg2, p_##arg3); \
98 }
99
100#define EXT_PROTO_XRRESULT_FUNC4(func_name, arg1_type, arg1, arg2_type, arg2, arg3_type, arg3, arg4_type, arg4) \
101 PFN_##func_name func_name##_ptr = nullptr; \
102 XRAPI_ATTR XrResult XRAPI_CALL func_name(UNPACK arg1_type p_##arg1, UNPACK arg2_type p_##arg2, UNPACK arg3_type p_##arg3, UNPACK arg4_type p_##arg4) const { \
103 if (!func_name##_ptr) { \
104 return XR_ERROR_HANDLE_INVALID; \
105 } \
106 return (*func_name##_ptr)(p_##arg1, p_##arg2, p_##arg3, p_##arg4); \
107 }
108
109#define EXT_PROTO_XRRESULT_FUNC5(func_name, arg1_type, arg1, arg2_type, arg2, arg3_type, arg3, arg4_type, arg4, arg5_type, arg5) \
110 PFN_##func_name func_name##_ptr = nullptr; \
111 XRAPI_ATTR XrResult XRAPI_CALL func_name(UNPACK arg1_type p_##arg1, UNPACK arg2_type p_##arg2, UNPACK arg3_type p_##arg3, UNPACK arg4_type p_##arg4, UNPACK arg5_type p_##arg5) const { \
112 if (!func_name##_ptr) { \
113 return XR_ERROR_HANDLE_INVALID; \
114 } \
115 return (*func_name##_ptr)(p_##arg1, p_##arg2, p_##arg3, p_##arg4, p_##arg5); \
116 }
117
118#define EXT_PROTO_XRRESULT_FUNC6(func_name, arg1_type, arg1, arg2_type, arg2, arg3_type, arg3, arg4_type, arg4, arg5_type, arg5, arg6_type, arg6) \
119 PFN_##func_name func_name##_ptr = nullptr; \
120 XRAPI_ATTR XrResult XRAPI_CALL func_name(UNPACK arg1_type p_##arg1, UNPACK arg2_type p_##arg2, UNPACK arg3_type p_##arg3, UNPACK arg4_type p_##arg4, UNPACK arg5_type p_##arg5, UNPACK arg6_type p_##arg6) const { \
121 if (!func_name##_ptr) { \
122 return XR_ERROR_HANDLE_INVALID; \
123 } \
124 return (*func_name##_ptr)(p_##arg1, p_##arg2, p_##arg3, p_##arg4, p_##arg5, p_##arg6); \
125 }
126
127#endif // UTIL_H
128