256 lines
9.2 KiB
C++
256 lines
9.2 KiB
C++
/*************************************************************************/
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/* power_android.cpp */
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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) 2007-2019 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2019 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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/*
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Adapted from corresponding SDL 2.0 code.
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*/
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "power_android.h"
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#include "core/error_macros.h"
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static void LocalReferenceHolder_Cleanup(struct LocalReferenceHolder *refholder) {
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if (refholder->m_env) {
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JNIEnv *env = refholder->m_env;
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(*env)->PopLocalFrame(env, NULL);
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--s_active;
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}
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}
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static struct LocalReferenceHolder LocalReferenceHolder_Setup(const char *func) {
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struct LocalReferenceHolder refholder;
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refholder.m_env = NULL;
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refholder.m_func = func;
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return refholder;
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}
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static bool LocalReferenceHolder_Init(struct LocalReferenceHolder *refholder, JNIEnv *env) {
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const int capacity = 16;
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if ((*env)->PushLocalFrame(env, capacity) < 0) {
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return false;
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}
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++s_active;
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refholder->m_env = env;
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return true;
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}
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static SDL_bool LocalReferenceHolder_IsActive(void) {
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return s_active > 0;
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}
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ANativeWindow *Android_JNI_GetNativeWindow(void) {
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ANativeWindow *anw;
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jobject s;
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JNIEnv *env = Android_JNI_GetEnv();
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s = (*env)->CallStaticObjectMethod(env, mActivityClass, midGetNativeSurface);
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anw = ANativeWindow_fromSurface(env, s);
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(*env)->DeleteLocalRef(env, s);
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return anw;
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}
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/*
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* CODE CHUNK IMPORTED FROM SDL 2.0
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* returns 0 on success or -1 on error (others undefined then)
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* returns truthy or falsy value in plugged, charged and battery
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* returns the value in seconds and percent or -1 if not available
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*/
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int Android_JNI_GetPowerInfo(int *plugged, int *charged, int *battery, int *seconds, int *percent) {
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env = Android_JNI_GetEnv();
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refs = LocalReferenceHolder_Setup(__FUNCTION__);
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if (!LocalReferenceHolder_Init(&refs, env)) {
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LocalReferenceHolder_Cleanup(&refs);
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return -1;
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}
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mid = (*env)->GetStaticMethodID(env, mActivityClass, "getContext", "()Landroid/content/Context;");
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context = (*env)->CallStaticObjectMethod(env, mActivityClass, mid);
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action = (*env)->NewStringUTF(env, "android.intent.action.BATTERY_CHANGED");
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cls = (*env)->FindClass(env, "android/content/IntentFilter");
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mid = (*env)->GetMethodID(env, cls, "<init>", "(Ljava/lang/String;)V");
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filter = (*env)->NewObject(env, cls, mid, action);
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(*env)->DeleteLocalRef(env, action);
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mid = (*env)->GetMethodID(env, mActivityClass, "registerReceiver", "(Landroid/content/BroadcastReceiver;Landroid/content/IntentFilter;)Landroid/content/Intent;");
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intent = (*env)->CallObjectMethod(env, context, mid, NULL, filter);
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(*env)->DeleteLocalRef(env, filter);
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cls = (*env)->GetObjectClass(env, intent);
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imid = (*env)->GetMethodID(env, cls, "getIntExtra", "(Ljava/lang/String;I)I");
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// Watch out for C89 scoping rules because of the macro
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#define GET_INT_EXTRA(var, key) \
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int var; \
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iname = (*env)->NewStringUTF(env, key); \
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var = (*env)->CallIntMethod(env, intent, imid, iname, -1); \
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(*env)->DeleteLocalRef(env, iname);
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bmid = (*env)->GetMethodID(env, cls, "getBooleanExtra", "(Ljava/lang/String;Z)Z");
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// Watch out for C89 scoping rules because of the macro
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#define GET_BOOL_EXTRA(var, key) \
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int var; \
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bname = (*env)->NewStringUTF(env, key); \
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var = (*env)->CallBooleanMethod(env, intent, bmid, bname, JNI_FALSE); \
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(*env)->DeleteLocalRef(env, bname);
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if (plugged) {
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// Watch out for C89 scoping rules because of the macro
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GET_INT_EXTRA(plug, "plugged") // == BatteryManager.EXTRA_PLUGGED (API 5)
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if (plug == -1) {
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LocalReferenceHolder_Cleanup(&refs);
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return -1;
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}
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// 1 == BatteryManager.BATTERY_PLUGGED_AC
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// 2 == BatteryManager.BATTERY_PLUGGED_USB
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*plugged = (0 < plug) ? 1 : 0;
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}
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if (charged) {
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// Watch out for C89 scoping rules because of the macro
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GET_INT_EXTRA(status, "status") // == BatteryManager.EXTRA_STATUS (API 5)
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if (status == -1) {
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LocalReferenceHolder_Cleanup(&refs);
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return -1;
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}
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// 5 == BatteryManager.BATTERY_STATUS_FULL
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*charged = (status == 5) ? 1 : 0;
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}
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if (battery) {
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GET_BOOL_EXTRA(present, "present") // == BatteryManager.EXTRA_PRESENT (API 5)
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*battery = present ? 1 : 0;
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}
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if (seconds) {
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*seconds = -1; // not possible
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}
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if (percent) {
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int level;
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int scale;
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// Watch out for C89 scoping rules because of the macro
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{
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GET_INT_EXTRA(level_temp, "level") // == BatteryManager.EXTRA_LEVEL (API 5)
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level = level_temp;
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}
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// Watch out for C89 scoping rules because of the macro
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{
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GET_INT_EXTRA(scale_temp, "scale") // == BatteryManager.EXTRA_SCALE (API 5)
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scale = scale_temp;
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}
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if ((level == -1) || (scale == -1)) {
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LocalReferenceHolder_Cleanup(&refs);
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return -1;
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}
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*percent = level * 100 / scale;
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}
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(*env)->DeleteLocalRef(env, intent);
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LocalReferenceHolder_Cleanup(&refs);
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return 0;
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}
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bool power_android::GetPowerInfo_Android() {
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int battery;
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int plugged;
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int charged;
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if (Android_JNI_GetPowerInfo(&plugged, &charged, &battery, &this->nsecs_left, &this->percent_left) != -1) {
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if (plugged) {
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if (charged) {
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this->power_state = OS::POWERSTATE_CHARGED;
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} else if (battery) {
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this->power_state = OS::POWERSTATE_CHARGING;
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} else {
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this->power_state = OS::POWERSTATE_NO_BATTERY;
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this->nsecs_left = -1;
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this->percent_left = -1;
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}
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} else {
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this->power_state = OS::POWERSTATE_ON_BATTERY;
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}
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} else {
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this->power_state = OS::POWERSTATE_UNKNOWN;
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this->nsecs_left = -1;
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this->percent_left = -1;
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}
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return true;
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}
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OS::PowerState power_android::get_power_state() {
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if (GetPowerInfo_Android()) {
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return power_state;
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} else {
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WARN_PRINT("Power management is not implemented on this platform, defaulting to POWERSTATE_UNKNOWN");
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return OS::POWERSTATE_UNKNOWN;
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}
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}
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int power_android::get_power_seconds_left() {
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if (GetPowerInfo_Android()) {
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return nsecs_left;
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} else {
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WARN_PRINT("Power management is not implemented on this platform, defaulting to -1");
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return -1;
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}
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}
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int power_android::get_power_percent_left() {
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if (GetPowerInfo_Android()) {
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return percent_left;
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} else {
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WARN_PRINT("Power management is not implemented on this platform, defaulting to -1");
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return -1;
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}
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}
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power_android::power_android() :
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nsecs_left(-1),
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percent_left(-1),
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power_state(OS::POWERSTATE_UNKNOWN) {
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}
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power_android::~power_android() {
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}
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