438 lines
16 KiB
C
438 lines
16 KiB
C
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/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifdef ANDROID_NATIVE_ACTIVITY
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#include <jni.h>
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/resource.h>
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#include "android_native_app_glue.h"
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#include <android/log.h>
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#define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "threaded_app", __VA_ARGS__))
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static void free_saved_state(struct android_app* android_app) {
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pthread_mutex_lock(&android_app->mutex);
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if (android_app->savedState != NULL) {
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free(android_app->savedState);
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android_app->savedState = NULL;
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android_app->savedStateSize = 0;
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}
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pthread_mutex_unlock(&android_app->mutex);
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}
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int8_t android_app_read_cmd(struct android_app* android_app) {
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int8_t cmd;
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if (read(android_app->msgread, &cmd, sizeof(cmd)) == sizeof(cmd)) {
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switch (cmd) {
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case APP_CMD_SAVE_STATE:
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free_saved_state(android_app);
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break;
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}
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return cmd;
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} else {
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LOGI("No data on command pipe!");
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}
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return -1;
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}
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static void print_cur_config(struct android_app* android_app) {
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char lang[2], country[2];
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AConfiguration_getLanguage(android_app->config, lang);
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AConfiguration_getCountry(android_app->config, country);
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LOGI("Config: mcc=%d mnc=%d lang=%c%c cnt=%c%c orien=%d touch=%d dens=%d "
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"keys=%d nav=%d keysHid=%d navHid=%d sdk=%d size=%d long=%d "
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"modetype=%d modenight=%d",
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AConfiguration_getMcc(android_app->config),
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AConfiguration_getMnc(android_app->config),
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lang[0], lang[1], country[0], country[1],
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AConfiguration_getOrientation(android_app->config),
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AConfiguration_getTouchscreen(android_app->config),
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AConfiguration_getDensity(android_app->config),
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AConfiguration_getKeyboard(android_app->config),
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AConfiguration_getNavigation(android_app->config),
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AConfiguration_getKeysHidden(android_app->config),
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AConfiguration_getNavHidden(android_app->config),
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AConfiguration_getSdkVersion(android_app->config),
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AConfiguration_getScreenSize(android_app->config),
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AConfiguration_getScreenLong(android_app->config),
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AConfiguration_getUiModeType(android_app->config),
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AConfiguration_getUiModeNight(android_app->config));
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}
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void android_app_pre_exec_cmd(struct android_app* android_app, int8_t cmd) {
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switch (cmd) {
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case APP_CMD_INPUT_CHANGED:
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LOGI("APP_CMD_INPUT_CHANGED\n");
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pthread_mutex_lock(&android_app->mutex);
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if (android_app->inputQueue != NULL) {
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AInputQueue_detachLooper(android_app->inputQueue);
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}
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android_app->inputQueue = android_app->pendingInputQueue;
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if (android_app->inputQueue != NULL) {
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LOGI("Attaching input queue to looper");
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AInputQueue_attachLooper(android_app->inputQueue,
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android_app->looper, LOOPER_ID_INPUT, NULL,
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&android_app->inputPollSource);
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}
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pthread_cond_broadcast(&android_app->cond);
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pthread_mutex_unlock(&android_app->mutex);
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break;
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case APP_CMD_INIT_WINDOW:
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LOGI("APP_CMD_INIT_WINDOW\n");
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pthread_mutex_lock(&android_app->mutex);
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android_app->window = android_app->pendingWindow;
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pthread_cond_broadcast(&android_app->cond);
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pthread_mutex_unlock(&android_app->mutex);
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break;
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case APP_CMD_TERM_WINDOW:
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LOGI("APP_CMD_TERM_WINDOW\n");
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pthread_cond_broadcast(&android_app->cond);
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break;
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case APP_CMD_RESUME:
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case APP_CMD_START:
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case APP_CMD_PAUSE:
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case APP_CMD_STOP:
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LOGI("activityState=%d\n", cmd);
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pthread_mutex_lock(&android_app->mutex);
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android_app->activityState = cmd;
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pthread_cond_broadcast(&android_app->cond);
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pthread_mutex_unlock(&android_app->mutex);
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break;
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case APP_CMD_CONFIG_CHANGED:
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LOGI("APP_CMD_CONFIG_CHANGED\n");
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AConfiguration_fromAssetManager(android_app->config,
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android_app->activity->assetManager);
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print_cur_config(android_app);
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break;
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case APP_CMD_DESTROY:
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LOGI("APP_CMD_DESTROY\n");
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android_app->destroyRequested = 1;
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break;
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}
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}
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void android_app_post_exec_cmd(struct android_app* android_app, int8_t cmd) {
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switch (cmd) {
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case APP_CMD_TERM_WINDOW:
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LOGI("APP_CMD_TERM_WINDOW\n");
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pthread_mutex_lock(&android_app->mutex);
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android_app->window = NULL;
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pthread_cond_broadcast(&android_app->cond);
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pthread_mutex_unlock(&android_app->mutex);
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break;
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case APP_CMD_SAVE_STATE:
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LOGI("APP_CMD_SAVE_STATE\n");
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pthread_mutex_lock(&android_app->mutex);
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android_app->stateSaved = 1;
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pthread_cond_broadcast(&android_app->cond);
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pthread_mutex_unlock(&android_app->mutex);
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break;
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case APP_CMD_RESUME:
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free_saved_state(android_app);
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break;
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}
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}
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void app_dummy() {
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}
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static void android_app_destroy(struct android_app* android_app) {
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LOGI("android_app_destroy!");
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free_saved_state(android_app);
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pthread_mutex_lock(&android_app->mutex);
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if (android_app->inputQueue != NULL) {
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AInputQueue_detachLooper(android_app->inputQueue);
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}
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AConfiguration_delete(android_app->config);
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android_app->destroyed = 1;
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pthread_cond_broadcast(&android_app->cond);
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pthread_mutex_unlock(&android_app->mutex);
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// Can't touch android_app object after this.
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}
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static void process_input(struct android_app* app, struct android_poll_source* source) {
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AInputEvent* event = NULL;
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if (AInputQueue_getEvent(app->inputQueue, &event) >= 0) {
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LOGI("New input event: type=%d\n", AInputEvent_getType(event));
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if (AInputQueue_preDispatchEvent(app->inputQueue, event)) {
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return;
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}
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int32_t handled = 0;
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if (app->onInputEvent != NULL) handled = app->onInputEvent(app, event);
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AInputQueue_finishEvent(app->inputQueue, event, handled);
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} else {
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LOGI("Failure reading next input event: %s\n", strerror(errno));
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}
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}
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static void process_cmd(struct android_app* app, struct android_poll_source* source) {
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int8_t cmd = android_app_read_cmd(app);
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android_app_pre_exec_cmd(app, cmd);
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if (app->onAppCmd != NULL) app->onAppCmd(app, cmd);
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android_app_post_exec_cmd(app, cmd);
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}
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static void* android_app_entry(void* param) {
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struct android_app* android_app = (struct android_app*)param;
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android_app->config = AConfiguration_new();
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AConfiguration_fromAssetManager(android_app->config, android_app->activity->assetManager);
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print_cur_config(android_app);
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android_app->cmdPollSource.id = LOOPER_ID_MAIN;
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android_app->cmdPollSource.app = android_app;
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android_app->cmdPollSource.process = process_cmd;
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android_app->inputPollSource.id = LOOPER_ID_INPUT;
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android_app->inputPollSource.app = android_app;
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android_app->inputPollSource.process = process_input;
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ALooper* looper = ALooper_prepare(ALOOPER_PREPARE_ALLOW_NON_CALLBACKS);
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ALooper_addFd(looper, android_app->msgread, LOOPER_ID_MAIN, ALOOPER_EVENT_INPUT, NULL,
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&android_app->cmdPollSource);
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android_app->looper = looper;
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pthread_mutex_lock(&android_app->mutex);
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android_app->running = 1;
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pthread_cond_broadcast(&android_app->cond);
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pthread_mutex_unlock(&android_app->mutex);
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android_main(android_app);
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android_app_destroy(android_app);
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return NULL;
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}
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// --------------------------------------------------------------------
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// Native activity interaction (called from main thread)
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// --------------------------------------------------------------------
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static struct android_app* android_app_create(ANativeActivity* activity,
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void* savedState, size_t savedStateSize) {
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struct android_app* android_app = (struct android_app*)malloc(sizeof(struct android_app));
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memset(android_app, 0, sizeof(struct android_app));
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android_app->activity = activity;
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pthread_mutex_init(&android_app->mutex, NULL);
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pthread_cond_init(&android_app->cond, NULL);
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if (savedState != NULL) {
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android_app->savedState = malloc(savedStateSize);
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android_app->savedStateSize = savedStateSize;
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memcpy(android_app->savedState, savedState, savedStateSize);
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}
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int msgpipe[2];
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if (pipe(msgpipe)) {
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LOGI("could not create pipe: %s", strerror(errno));
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}
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android_app->msgread = msgpipe[0];
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android_app->msgwrite = msgpipe[1];
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pthread_attr_t attr;
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pthread_attr_init(&attr);
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pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
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pthread_create(&android_app->thread, &attr, android_app_entry, android_app);
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// Wait for thread to start.
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pthread_mutex_lock(&android_app->mutex);
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while (!android_app->running) {
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pthread_cond_wait(&android_app->cond, &android_app->mutex);
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}
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pthread_mutex_unlock(&android_app->mutex);
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return android_app;
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}
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static void android_app_write_cmd(struct android_app* android_app, int8_t cmd) {
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if (write(android_app->msgwrite, &cmd, sizeof(cmd)) != sizeof(cmd)) {
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LOGI("Failure writing android_app cmd: %s\n", strerror(errno));
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}
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}
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static void android_app_set_input(struct android_app* android_app, AInputQueue* inputQueue) {
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pthread_mutex_lock(&android_app->mutex);
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android_app->pendingInputQueue = inputQueue;
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android_app_write_cmd(android_app, APP_CMD_INPUT_CHANGED);
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while (android_app->inputQueue != android_app->pendingInputQueue) {
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pthread_cond_wait(&android_app->cond, &android_app->mutex);
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}
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pthread_mutex_unlock(&android_app->mutex);
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}
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static void android_app_set_window(struct android_app* android_app, ANativeWindow* window) {
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pthread_mutex_lock(&android_app->mutex);
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if (android_app->pendingWindow != NULL) {
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android_app_write_cmd(android_app, APP_CMD_TERM_WINDOW);
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}
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android_app->pendingWindow = window;
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if (window != NULL) {
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android_app_write_cmd(android_app, APP_CMD_INIT_WINDOW);
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}
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while (android_app->window != android_app->pendingWindow) {
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pthread_cond_wait(&android_app->cond, &android_app->mutex);
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}
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pthread_mutex_unlock(&android_app->mutex);
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}
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static void android_app_set_activity_state(struct android_app* android_app, int8_t cmd) {
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pthread_mutex_lock(&android_app->mutex);
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android_app_write_cmd(android_app, cmd);
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while (android_app->activityState != cmd) {
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pthread_cond_wait(&android_app->cond, &android_app->mutex);
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}
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pthread_mutex_unlock(&android_app->mutex);
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}
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static void android_app_free(struct android_app* android_app) {
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pthread_mutex_lock(&android_app->mutex);
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android_app_write_cmd(android_app, APP_CMD_DESTROY);
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while (!android_app->destroyed) {
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pthread_cond_wait(&android_app->cond, &android_app->mutex);
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}
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pthread_mutex_unlock(&android_app->mutex);
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close(android_app->msgread);
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close(android_app->msgwrite);
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pthread_cond_destroy(&android_app->cond);
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pthread_mutex_destroy(&android_app->mutex);
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free(android_app);
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}
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static void onDestroy(ANativeActivity* activity) {
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LOGI("Destroy: %p\n", activity);
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android_app_free((struct android_app*)activity->instance);
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}
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static void onStart(ANativeActivity* activity) {
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LOGI("Start: %p\n", activity);
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android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_START);
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}
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static void onResume(ANativeActivity* activity) {
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LOGI("Resume: %p\n", activity);
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android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_RESUME);
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}
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static void* onSaveInstanceState(ANativeActivity* activity, size_t* outLen) {
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struct android_app* android_app = (struct android_app*)activity->instance;
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void* savedState = NULL;
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LOGI("SaveInstanceState: %p\n", activity);
|
||
|
|
pthread_mutex_lock(&android_app->mutex);
|
||
|
|
android_app->stateSaved = 0;
|
||
|
|
android_app_write_cmd(android_app, APP_CMD_SAVE_STATE);
|
||
|
|
while (!android_app->stateSaved) {
|
||
|
|
pthread_cond_wait(&android_app->cond, &android_app->mutex);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (android_app->savedState != NULL) {
|
||
|
|
savedState = android_app->savedState;
|
||
|
|
*outLen = android_app->savedStateSize;
|
||
|
|
android_app->savedState = NULL;
|
||
|
|
android_app->savedStateSize = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
pthread_mutex_unlock(&android_app->mutex);
|
||
|
|
|
||
|
|
return savedState;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void onPause(ANativeActivity* activity) {
|
||
|
|
LOGI("Pause: %p\n", activity);
|
||
|
|
android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_PAUSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void onStop(ANativeActivity* activity) {
|
||
|
|
LOGI("Stop: %p\n", activity);
|
||
|
|
android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_STOP);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void onConfigurationChanged(ANativeActivity* activity) {
|
||
|
|
struct android_app* android_app = (struct android_app*)activity->instance;
|
||
|
|
LOGI("ConfigurationChanged: %p\n", activity);
|
||
|
|
android_app_write_cmd(android_app, APP_CMD_CONFIG_CHANGED);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void onLowMemory(ANativeActivity* activity) {
|
||
|
|
struct android_app* android_app = (struct android_app*)activity->instance;
|
||
|
|
LOGI("LowMemory: %p\n", activity);
|
||
|
|
android_app_write_cmd(android_app, APP_CMD_LOW_MEMORY);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void onWindowFocusChanged(ANativeActivity* activity, int focused) {
|
||
|
|
LOGI("WindowFocusChanged: %p -- %d\n", activity, focused);
|
||
|
|
android_app_write_cmd((struct android_app*)activity->instance,
|
||
|
|
focused ? APP_CMD_GAINED_FOCUS : APP_CMD_LOST_FOCUS);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void onNativeWindowCreated(ANativeActivity* activity, ANativeWindow* window) {
|
||
|
|
LOGI("NativeWindowCreated: %p -- %p\n", activity, window);
|
||
|
|
android_app_set_window((struct android_app*)activity->instance, window);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void onNativeWindowDestroyed(ANativeActivity* activity, ANativeWindow* window) {
|
||
|
|
LOGI("NativeWindowDestroyed: %p -- %p\n", activity, window);
|
||
|
|
android_app_set_window((struct android_app*)activity->instance, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void onInputQueueCreated(ANativeActivity* activity, AInputQueue* queue) {
|
||
|
|
LOGI("InputQueueCreated: %p -- %p\n", activity, queue);
|
||
|
|
android_app_set_input((struct android_app*)activity->instance, queue);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void onInputQueueDestroyed(ANativeActivity* activity, AInputQueue* queue) {
|
||
|
|
LOGI("InputQueueDestroyed: %p -- %p\n", activity, queue);
|
||
|
|
android_app_set_input((struct android_app*)activity->instance, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ANativeActivity_onCreate(ANativeActivity* activity,
|
||
|
|
void* savedState, size_t savedStateSize) {
|
||
|
|
LOGI("Creating: %p\n", activity);
|
||
|
|
activity->callbacks->onDestroy = onDestroy;
|
||
|
|
activity->callbacks->onStart = onStart;
|
||
|
|
activity->callbacks->onResume = onResume;
|
||
|
|
activity->callbacks->onSaveInstanceState = onSaveInstanceState;
|
||
|
|
activity->callbacks->onPause = onPause;
|
||
|
|
activity->callbacks->onStop = onStop;
|
||
|
|
activity->callbacks->onConfigurationChanged = onConfigurationChanged;
|
||
|
|
activity->callbacks->onLowMemory = onLowMemory;
|
||
|
|
activity->callbacks->onWindowFocusChanged = onWindowFocusChanged;
|
||
|
|
activity->callbacks->onNativeWindowCreated = onNativeWindowCreated;
|
||
|
|
activity->callbacks->onNativeWindowDestroyed = onNativeWindowDestroyed;
|
||
|
|
activity->callbacks->onInputQueueCreated = onInputQueueCreated;
|
||
|
|
activity->callbacks->onInputQueueDestroyed = onInputQueueDestroyed;
|
||
|
|
|
||
|
|
activity->instance = android_app_create(activity, savedState, savedStateSize);
|
||
|
|
}
|
||
|
|
#endif
|