d5445c25a6
This change implements dynamic loading of the OpenXR Loader library on Android. If an OpenXR Loader library is not found, Godot will still function with OpenXR disabled. Also, on every platform, the OpenXR symbols are resolved at runtime using xrGetInstanceProcAddr. On Windows and Linux the OpenXR loader is included in the main engine binary. On Android, the OpenXR Loader is not built with the engine. Separately distributed Android plugins will be provided with the correct loader library for each device. Co-authored-by: Gábor Pál Korom <gabor.p.korom@migeran.com> Co-authored-by: Gábor Koncz <gabor.koncz@migeran.com>
110 lines
9 KiB
C++
110 lines
9 KiB
C++
/*************************************************************************/
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/* util.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef UTIL_H
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#define UTIL_H
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#define UNPACK(...) __VA_ARGS__
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#define INIT_XR_FUNC_V(openxr_api, name) \
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do { \
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XrResult get_instance_proc_addr_result; \
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get_instance_proc_addr_result = openxr_api->get_instance_proc_addr(#name, (PFN_xrVoidFunction *)&name##_ptr); \
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ERR_FAIL_COND_V(XR_FAILED(get_instance_proc_addr_result), false); \
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} while (0)
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#define EXT_INIT_XR_FUNC_V(name) INIT_XR_FUNC_V(openxr_api, name)
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#define OPENXR_API_INIT_XR_FUNC_V(name) INIT_XR_FUNC_V(this, name)
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#define INIT_XR_FUNC(openxr_api, name) \
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do { \
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XrResult get_instance_proc_addr_result; \
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get_instance_proc_addr_result = openxr_api->get_instance_proc_addr(#name, (PFN_xrVoidFunction *)&name##_ptr); \
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ERR_FAIL_COND(XR_FAILED(get_instance_proc_addr_result)); \
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} while (0)
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#define EXT_INIT_XR_FUNC(name) INIT_XR_FUNC(openxr_api, name)
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#define OPENXR_API_INIT_XR_FUNC(name) INIT_XR_FUNC(this, name)
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#define EXT_PROTO_XRRESULT_FUNC1(func_name, arg1_type, arg1) \
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PFN_##func_name func_name##_ptr = nullptr; \
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XRAPI_ATTR XrResult XRAPI_CALL func_name(UNPACK arg1_type arg1) const { \
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if (!func_name##_ptr) { \
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return XR_ERROR_HANDLE_INVALID; \
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} \
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return (*func_name##_ptr)(arg1); \
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}
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#define EXT_PROTO_XRRESULT_FUNC2(func_name, arg1_type, arg1, arg2_type, arg2) \
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PFN_##func_name func_name##_ptr = nullptr; \
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XRAPI_ATTR XrResult XRAPI_CALL func_name(UNPACK arg1_type arg1, UNPACK arg2_type arg2) const { \
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if (!func_name##_ptr) { \
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return XR_ERROR_HANDLE_INVALID; \
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} \
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return (*func_name##_ptr)(arg1, arg2); \
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}
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#define EXT_PROTO_XRRESULT_FUNC3(func_name, arg1_type, arg1, arg2_type, arg2, arg3_type, arg3) \
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PFN_##func_name func_name##_ptr = nullptr; \
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XRAPI_ATTR XrResult XRAPI_CALL func_name(UNPACK arg1_type arg1, UNPACK arg2_type arg2, UNPACK arg3_type arg3) const { \
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if (!func_name##_ptr) { \
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return XR_ERROR_HANDLE_INVALID; \
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} \
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return (*func_name##_ptr)(arg1, arg2, arg3); \
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}
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#define EXT_PROTO_XRRESULT_FUNC4(func_name, arg1_type, arg1, arg2_type, arg2, arg3_type, arg3, arg4_type, arg4) \
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PFN_##func_name func_name##_ptr = nullptr; \
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XRAPI_ATTR XrResult XRAPI_CALL func_name(UNPACK arg1_type arg1, UNPACK arg2_type arg2, UNPACK arg3_type arg3, UNPACK arg4_type arg4) const { \
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if (!func_name##_ptr) { \
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return XR_ERROR_HANDLE_INVALID; \
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} \
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return (*func_name##_ptr)(arg1, arg2, arg3, arg4); \
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}
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#define EXT_PROTO_XRRESULT_FUNC5(func_name, arg1_type, arg1, arg2_type, arg2, arg3_type, arg3, arg4_type, arg4, arg5_type, arg5) \
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PFN_##func_name func_name##_ptr = nullptr; \
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XRAPI_ATTR XrResult XRAPI_CALL func_name(UNPACK arg1_type arg1, UNPACK arg2_type arg2, UNPACK arg3_type arg3, UNPACK arg4_type arg4, UNPACK arg5_type arg5) const { \
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if (!func_name##_ptr) { \
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return XR_ERROR_HANDLE_INVALID; \
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} \
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return (*func_name##_ptr)(arg1, arg2, arg3, arg4, arg5); \
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}
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#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) \
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PFN_##func_name func_name##_ptr = nullptr; \
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XRAPI_ATTR XrResult XRAPI_CALL func_name(UNPACK arg1_type arg1, UNPACK arg2_type arg2, UNPACK arg3_type arg3, UNPACK arg4_type arg4, UNPACK arg5_type arg5, UNPACK arg6_type arg6) const { \
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if (!func_name##_ptr) { \
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return XR_ERROR_HANDLE_INVALID; \
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} \
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return (*func_name##_ptr)(arg1, arg2, arg3, arg4, arg5, arg6); \
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}
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#endif // UTIL_H
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