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The open source OpenXR runtime
1// Copyright 2020, Collabora, Ltd.
2// SPDX-License-Identifier: BSL-1.0
3/*!
4 * @file
5 * @brief Functions for Android-specific global state.
6 * @author Rylie Pavlik <rylie.pavlik@collabora.com>
7 * @ingroup aux_android
8 */
9
10#pragma once
11
12#include <xrt/xrt_config_os.h>
13
14#ifdef XRT_OS_ANDROID
15
16#ifdef __cplusplus
17extern "C" {
18#endif
19
20struct _JNIEnv;
21struct _JavaVM;
22struct _ANativeWindow;
23
24/*!
25 * Store the Java VM pointer and the android.app.Activity jobject.
26 */
27void
28android_globals_store_vm_and_activity(struct _JavaVM *vm, void *activity);
29
30
31/*!
32 * Store the Java VM pointer and the android.content.Context jobject.
33 */
34void
35android_globals_store_vm_and_context(struct _JavaVM *vm, void *context);
36
37
38/*!
39 * Is the provided jobject an instance of android.app.Activity?
40 */
41bool
42android_globals_is_instance_of_activity(struct _JavaVM *vm, void *obj);
43
44/*!
45 * Retrieve the Java VM pointer previously stored, if any.
46 */
47struct _JavaVM *
48android_globals_get_vm(void);
49
50/*!
51 * Retrieve the android.app.Activity jobject previously stored, if any.
52 *
53 * For usage, cast the return value to jobject - a typedef whose definition
54 * differs between C (a void *) and C++ (a pointer to an empty class)
55 */
56void *
57android_globals_get_activity(void);
58
59/*!
60 * Retrieve the android.content.Context jobject previously stored, if any.
61 *
62 * Since android.app.Activity is a sub-class of android.content.Context, the
63 * activity jobject will be returned if it has been set but the context has not.
64 *
65 * For usage, cast the return value to jobject - a typedef whose definition
66 * differs between C (a void *) and C++ (a pointer to an empty class)
67 */
68void *
69android_globals_get_context(void);
70
71
72void
73android_globals_store_window(struct _ANativeWindow *window);
74
75struct _ANativeWindow *
76android_globals_get_window(void);
77
78#ifdef __cplusplus
79}
80#endif
81
82#endif // XRT_OS_ANDROID