blob: 14ae78cea80bb0324a6bd670b969885ef78b7fe6 [file] [log] [blame]
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "GameActivity"
#include "GameActivity.h"
#include <android/api-level.h>
#include <android/asset_manager.h>
#include <android/asset_manager_jni.h>
#include <android/log.h>
#include <android/looper.h>
#include <android/native_window.h>
#include <android/native_window_jni.h>
#include <dlfcn.h>
#include <errno.h>
#include <fcntl.h>
#include <jni.h>
#include <poll.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/system_properties.h>
#include <sys/types.h>
#include <unistd.h>
#include <memory>
#include <mutex>
#include <string>
// TODO(b/187147166): these functions were extracted from the Game SDK
// (gamesdk/src/common/system_utils.h). system_utils.h/cpp should be used
// instead.
namespace {
#if __ANDROID_API__ >= 26
std::string getSystemPropViaCallback(const char *key,
const char *default_value = "") {
const prop_info *prop = __system_property_find(key);
if (prop == nullptr) {
return default_value;
}
std::string return_value;
auto thunk = [](void *cookie, const char * /*name*/, const char *value,
uint32_t /*serial*/) {
if (value != nullptr) {
std::string *r = static_cast<std::string *>(cookie);
*r = value;
}
};
__system_property_read_callback(prop, thunk, &return_value);
return return_value;
}
#else
std::string getSystemPropViaGet(const char *key,
const char *default_value = "") {
char buffer[PROP_VALUE_MAX + 1] = ""; // +1 for terminator
int bufferLen = __system_property_get(key, buffer);
if (bufferLen > 0)
return buffer;
else
return "";
}
#endif
std::string GetSystemProp(const char *key, const char *default_value = "") {
#if __ANDROID_API__ >= 26
return getSystemPropViaCallback(key, default_value);
#else
return getSystemPropViaGet(key, default_value);
#endif
}
int GetSystemPropAsInt(const char *key, int default_value = 0) {
std::string prop = GetSystemProp(key);
return prop == "" ? default_value : strtoll(prop.c_str(), nullptr, 10);
}
struct OwnedGameTextInputState {
OwnedGameTextInputState &operator=(const GameTextInputState &rhs) {
inner = rhs;
owned_string = std::string(rhs.text_UTF8, rhs.text_length);
inner.text_UTF8 = owned_string.data();
return *this;
}
GameTextInputState inner;
std::string owned_string;
};
} // anonymous namespace
#define ALOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__);
#define ALOGW(...) __android_log_print(ANDROID_LOG_WARN, LOG_TAG, __VA_ARGS__);
#define ALOGD(...) __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__);
#ifdef NDEBUG
#define ALOGV(...)
#else
#define ALOGV(...) \
__android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, __VA_ARGS__);
#endif
/* Returns 2nd arg. Used to substitute default value if caller's vararg list
* is empty.
*/
#define __android_second(first, second, ...) second
/* If passed multiple args, returns ',' followed by all but 1st arg, otherwise
* returns nothing.
*/
#define __android_rest(first, ...) , ##__VA_ARGS__
#define android_printAssert(cond, tag, fmt...) \
__android_log_assert(cond, tag, \
__android_second(0, ##fmt, NULL) __android_rest(fmt))
#define CONDITION(cond) (__builtin_expect((cond) != 0, 0))
#ifndef LOG_ALWAYS_FATAL_IF
#define LOG_ALWAYS_FATAL_IF(cond, ...) \
((CONDITION(cond)) \
? ((void)android_printAssert(#cond, LOG_TAG, ##__VA_ARGS__)) \
: (void)0)
#endif
#ifndef LOG_ALWAYS_FATAL
#define LOG_ALWAYS_FATAL(...) \
(((void)android_printAssert(NULL, LOG_TAG, ##__VA_ARGS__)))
#endif
/*
* Simplified macro to send a warning system log message using current LOG_TAG.
*/
#ifndef SLOGW
#define SLOGW(...) \
((void)__android_log_print(ANDROID_LOG_WARN, LOG_TAG, __VA_ARGS__))
#endif
#ifndef SLOGW_IF
#define SLOGW_IF(cond, ...) \
((__predict_false(cond)) \
? ((void)__android_log_print(ANDROID_LOG_WARN, LOG_TAG, __VA_ARGS__)) \
: (void)0)
#endif
/*
* Versions of LOG_ALWAYS_FATAL_IF and LOG_ALWAYS_FATAL that
* are stripped out of release builds.
*/
#if LOG_NDEBUG
#ifndef LOG_FATAL_IF
#define LOG_FATAL_IF(cond, ...) ((void)0)
#endif
#ifndef LOG_FATAL
#define LOG_FATAL(...) ((void)0)
#endif
#else
#ifndef LOG_FATAL_IF
#define LOG_FATAL_IF(cond, ...) LOG_ALWAYS_FATAL_IF(cond, ##__VA_ARGS__)
#endif
#ifndef LOG_FATAL
#define LOG_FATAL(...) LOG_ALWAYS_FATAL(__VA_ARGS__)
#endif
#endif
/*
* Assertion that generates a log message when the assertion fails.
* Stripped out of release builds. Uses the current LOG_TAG.
*/
#ifndef ALOG_ASSERT
#define ALOG_ASSERT(cond, ...) LOG_FATAL_IF(!(cond), ##__VA_ARGS__)
#endif
#define LOG_TRACE(...)
#ifndef NELEM
#define NELEM(x) ((int)(sizeof(x) / sizeof((x)[0])))
#endif
/*
* JNI methods of the GameActivity Java class.
*/
static struct {
jmethodID finish;
jmethodID setWindowFlags;
jmethodID getWindowInsets;
jmethodID getWaterfallInsets;
jmethodID setImeEditorInfoFields;
} gGameActivityClassInfo;
/*
* JNI fields of the androidx.core.graphics.Insets Java class.
*/
static struct {
jfieldID left;
jfieldID right;
jfieldID top;
jfieldID bottom;
} gInsetsClassInfo;
/*
* JNI methods of the WindowInsetsCompat.Type Java class.
*/
static struct {
jmethodID methods[GAMECOMMON_INSETS_TYPE_COUNT];
jclass clazz;
} gWindowInsetsCompatTypeClassInfo;
/*
* Contains a command to be executed by the GameActivity
* on the application main thread.
*/
struct ActivityWork {
int32_t cmd;
int64_t arg1;
int64_t arg2;
};
/*
* The type of commands that can be passed to the GameActivity and that
* are executed on the application main thread.
*/
enum {
CMD_FINISH = 1,
CMD_SET_WINDOW_FORMAT,
CMD_SET_WINDOW_FLAGS,
CMD_SHOW_SOFT_INPUT,
CMD_HIDE_SOFT_INPUT,
CMD_SET_SOFT_INPUT_STATE
};
/*
* Write a command to be executed by the GameActivity on the application main
* thread.
*/
static void write_work(int fd, int32_t cmd, int64_t arg1 = 0,
int64_t arg2 = 0) {
ActivityWork work;
work.cmd = cmd;
work.arg1 = arg1;
work.arg2 = arg2;
LOG_TRACE("write_work: cmd=%d", cmd);
restart:
int res = write(fd, &work, sizeof(work));
if (res < 0 && errno == EINTR) {
goto restart;
}
if (res == sizeof(work)) return;
if (res < 0) {
ALOGW("Failed writing to work fd: %s", strerror(errno));
} else {
ALOGW("Truncated writing to work fd: %d", res);
}
}
/*
* Read commands to be executed by the GameActivity on the application main
* thread.
*/
static bool read_work(int fd, ActivityWork *outWork) {
int res = read(fd, outWork, sizeof(ActivityWork));
// no need to worry about EINTR, poll loop will just come back again.
if (res == sizeof(ActivityWork)) return true;
if (res < 0) {
ALOGW("Failed reading work fd: %s", strerror(errno));
} else {
ALOGW("Truncated reading work fd: %d", res);
}
return false;
}
/*
* Native state for interacting with the GameActivity class.
*/
struct NativeCode : public GameActivity {
NativeCode() {
memset((GameActivity *)this, 0, sizeof(GameActivity));
memset(&callbacks, 0, sizeof(callbacks));
memset(&insetsState, 0, sizeof(insetsState));
nativeWindow = NULL;
mainWorkRead = mainWorkWrite = -1;
gameTextInput = NULL;
}
~NativeCode() {
if (callbacks.onDestroy != NULL) {
callbacks.onDestroy(this);
}
if (env != NULL) {
if (javaGameActivity != NULL) {
env->DeleteGlobalRef(javaGameActivity);
}
if (javaAssetManager != NULL) {
env->DeleteGlobalRef(javaAssetManager);
}
}
GameTextInput_destroy(gameTextInput);
if (looper != NULL && mainWorkRead >= 0) {
ALooper_removeFd(looper, mainWorkRead);
}
ALooper_release(looper);
looper = NULL;
setSurface(NULL);
if (mainWorkRead >= 0) close(mainWorkRead);
if (mainWorkWrite >= 0) close(mainWorkWrite);
}
void setSurface(jobject _surface) {
if (nativeWindow != NULL) {
ANativeWindow_release(nativeWindow);
}
if (_surface != NULL) {
nativeWindow = ANativeWindow_fromSurface(env, _surface);
} else {
nativeWindow = NULL;
}
}
GameActivityCallbacks callbacks;
std::string internalDataPathObj;
std::string externalDataPathObj;
std::string obbPathObj;
ANativeWindow *nativeWindow;
int32_t lastWindowWidth;
int32_t lastWindowHeight;
// These are used to wake up the main thread to process work.
int mainWorkRead;
int mainWorkWrite;
ALooper *looper;
// Need to hold on to a reference here in case the upper layers destroy our
// AssetManager.
jobject javaAssetManager;
GameTextInput *gameTextInput;
// Set by users in GameActivity_setTextInputState, then passed to
// GameTextInput.
OwnedGameTextInputState gameTextInputState;
std::mutex gameTextInputStateMutex;
ARect insetsState[GAMECOMMON_INSETS_TYPE_COUNT];
};
extern "C" void GameActivity_finish(GameActivity *activity) {
NativeCode *code = static_cast<NativeCode *>(activity);
write_work(code->mainWorkWrite, CMD_FINISH, 0);
}
extern "C" void GameActivity_setWindowFlags(GameActivity *activity,
uint32_t values, uint32_t mask) {
NativeCode *code = static_cast<NativeCode *>(activity);
write_work(code->mainWorkWrite, CMD_SET_WINDOW_FLAGS, values, mask);
}
extern "C" void GameActivity_showSoftInput(GameActivity *activity,
uint32_t flags) {
NativeCode *code = static_cast<NativeCode *>(activity);
write_work(code->mainWorkWrite, CMD_SHOW_SOFT_INPUT, flags);
}
extern "C" void GameActivity_setTextInputState(
GameActivity *activity, const GameTextInputState *state) {
NativeCode *code = static_cast<NativeCode *>(activity);
std::lock_guard<std::mutex> lock(code->gameTextInputStateMutex);
code->gameTextInputState = *state;
write_work(code->mainWorkWrite, CMD_SET_SOFT_INPUT_STATE);
}
extern "C" void GameActivity_getTextInputState(
GameActivity *activity, GameTextInputGetStateCallback callback,
void *context) {
NativeCode *code = static_cast<NativeCode *>(activity);
return GameTextInput_getState(code->gameTextInput, callback, context);
}
extern "C" void GameActivity_hideSoftInput(GameActivity *activity,
uint32_t flags) {
NativeCode *code = static_cast<NativeCode *>(activity);
write_work(code->mainWorkWrite, CMD_HIDE_SOFT_INPUT, flags);
}
extern "C" void GameActivity_getWindowInsets(GameActivity *activity,
GameCommonInsetsType type,
ARect *insets) {
if (type < 0 || type >= GAMECOMMON_INSETS_TYPE_COUNT) return;
NativeCode *code = static_cast<NativeCode *>(activity);
*insets = code->insetsState[type];
}
extern "C" GameTextInput *GameActivity_getTextInput(
const GameActivity *activity) {
const NativeCode *code = static_cast<const NativeCode *>(activity);
return code->gameTextInput;
}
/*
* Log the JNI exception, if any.
*/
static void checkAndClearException(JNIEnv *env, const char *methodName) {
if (env->ExceptionCheck()) {
ALOGE("Exception while running %s", methodName);
env->ExceptionDescribe();
env->ExceptionClear();
}
}
/*
* Callback for handling native events on the application's main thread.
*/
static int mainWorkCallback(int fd, int events, void *data) {
ALOGD("************** mainWorkCallback *********");
NativeCode *code = (NativeCode *)data;
if ((events & POLLIN) == 0) {
return 1;
}
ActivityWork work;
if (!read_work(code->mainWorkRead, &work)) {
return 1;
}
LOG_TRACE("mainWorkCallback: cmd=%d", work.cmd);
switch (work.cmd) {
case CMD_FINISH: {
code->env->CallVoidMethod(code->javaGameActivity,
gGameActivityClassInfo.finish);
checkAndClearException(code->env, "finish");
} break;
case CMD_SET_WINDOW_FLAGS: {
code->env->CallVoidMethod(code->javaGameActivity,
gGameActivityClassInfo.setWindowFlags,
work.arg1, work.arg2);
checkAndClearException(code->env, "setWindowFlags");
} break;
case CMD_SHOW_SOFT_INPUT: {
GameTextInput_showIme(code->gameTextInput, work.arg1);
} break;
case CMD_SET_SOFT_INPUT_STATE: {
std::lock_guard<std::mutex> lock(code->gameTextInputStateMutex);
GameTextInput_setState(code->gameTextInput,
&code->gameTextInputState.inner);
checkAndClearException(code->env, "setTextInputState");
} break;
case CMD_HIDE_SOFT_INPUT: {
GameTextInput_hideIme(code->gameTextInput, work.arg1);
} break;
default:
ALOGW("Unknown work command: %d", work.cmd);
break;
}
return 1;
}
// ------------------------------------------------------------------------
static thread_local std::string g_error_msg;
static jlong initializeNativeCode_native(JNIEnv *env, jobject javaGameActivity,
jstring internalDataDir, jstring obbDir,
jstring externalDataDir, jobject jAssetMgr,
jbyteArray savedState) {
LOG_TRACE("initializeNativeCode_native");
NativeCode *code = NULL;
code = new NativeCode();
code->looper = ALooper_forThread();
if (code->looper == nullptr) {
g_error_msg = "Unable to retrieve native ALooper";
ALOGW("%s", g_error_msg.c_str());
delete code;
return 0;
}
ALooper_acquire(code->looper);
int msgpipe[2];
if (pipe(msgpipe)) {
g_error_msg = "could not create pipe: ";
g_error_msg += strerror(errno);
ALOGW("%s", g_error_msg.c_str());
delete code;
return 0;
}
code->mainWorkRead = msgpipe[0];
code->mainWorkWrite = msgpipe[1];
int result = fcntl(code->mainWorkRead, F_SETFL, O_NONBLOCK);
SLOGW_IF(result != 0,
"Could not make main work read pipe "
"non-blocking: %s",
strerror(errno));
result = fcntl(code->mainWorkWrite, F_SETFL, O_NONBLOCK);
SLOGW_IF(result != 0,
"Could not make main work write pipe "
"non-blocking: %s",
strerror(errno));
ALooper_addFd(code->looper, code->mainWorkRead, 0, ALOOPER_EVENT_INPUT,
mainWorkCallback, code);
code->GameActivity::callbacks = &code->callbacks;
if (env->GetJavaVM(&code->vm) < 0) {
ALOGW("GameActivity GetJavaVM failed");
delete code;
return 0;
}
code->env = env;
code->javaGameActivity = env->NewGlobalRef(javaGameActivity);
const char *dirStr =
internalDataDir ? env->GetStringUTFChars(internalDataDir, NULL) : "";
code->internalDataPathObj = dirStr;
code->internalDataPath = code->internalDataPathObj.c_str();
if (internalDataDir) env->ReleaseStringUTFChars(internalDataDir, dirStr);
dirStr =
externalDataDir ? env->GetStringUTFChars(externalDataDir, NULL) : "";
code->externalDataPathObj = dirStr;
code->externalDataPath = code->externalDataPathObj.c_str();
if (externalDataDir) env->ReleaseStringUTFChars(externalDataDir, dirStr);
code->javaAssetManager = env->NewGlobalRef(jAssetMgr);
code->assetManager = AAssetManager_fromJava(env, jAssetMgr);
dirStr = obbDir ? env->GetStringUTFChars(obbDir, NULL) : "";
code->obbPathObj = dirStr;
code->obbPath = code->obbPathObj.c_str();
if (obbDir) env->ReleaseStringUTFChars(obbDir, dirStr);
jbyte *rawSavedState = NULL;
jsize rawSavedSize = 0;
if (savedState != NULL) {
rawSavedState = env->GetByteArrayElements(savedState, NULL);
rawSavedSize = env->GetArrayLength(savedState);
}
GameActivity_onCreate(code, rawSavedState, rawSavedSize);
code->gameTextInput = GameTextInput_init(env, 0);
GameTextInput_setEventCallback(code->gameTextInput,
reinterpret_cast<GameTextInputEventCallback>(
code->callbacks.onTextInputEvent),
code);
if (rawSavedState != NULL) {
env->ReleaseByteArrayElements(savedState, rawSavedState, 0);
}
return reinterpret_cast<jlong>(code);
}
static jstring getDlError_native(JNIEnv *env, jobject javaGameActivity) {
jstring result = env->NewStringUTF(g_error_msg.c_str());
g_error_msg.clear();
return result;
}
static void terminateNativeCode_native(JNIEnv *env, jobject javaGameActivity,
jlong handle) {
LOG_TRACE("terminateNativeCode_native");
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
delete code;
}
}
static void onStart_native(JNIEnv *env, jobject javaGameActivity,
jlong handle) {
ALOGV("onStart_native");
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
if (code->callbacks.onStart != NULL) {
code->callbacks.onStart(code);
}
}
}
static void onResume_native(JNIEnv *env, jobject javaGameActivity,
jlong handle) {
LOG_TRACE("onResume_native");
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
if (code->callbacks.onResume != NULL) {
code->callbacks.onResume(code);
}
}
}
struct SaveInstanceLocals {
JNIEnv *env;
jbyteArray array;
};
static jbyteArray onSaveInstanceState_native(JNIEnv *env,
jobject javaGameActivity,
jlong handle) {
LOG_TRACE("onSaveInstanceState_native");
SaveInstanceLocals locals{
env, NULL}; // Passed through the user's state prep function.
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
if (code->callbacks.onSaveInstanceState != NULL) {
code->callbacks.onSaveInstanceState(
code,
[](const char *bytes, int len, void *context) {
auto locals = static_cast<SaveInstanceLocals *>(context);
if (len > 0) {
locals->array = locals->env->NewByteArray(len);
if (locals->array != NULL) {
locals->env->SetByteArrayRegion(
locals->array, 0, len, (const jbyte *)bytes);
}
}
},
&locals);
}
}
return locals.array;
}
static void onPause_native(JNIEnv *env, jobject javaGameActivity,
jlong handle) {
LOG_TRACE("onPause_native");
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
if (code->callbacks.onPause != NULL) {
code->callbacks.onPause(code);
}
}
}
static void onStop_native(JNIEnv *env, jobject javaGameActivity, jlong handle) {
LOG_TRACE("onStop_native");
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
if (code->callbacks.onStop != NULL) {
code->callbacks.onStop(code);
}
}
}
static void onConfigurationChanged_native(JNIEnv *env, jobject javaGameActivity,
jlong handle) {
LOG_TRACE("onConfigurationChanged_native");
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
if (code->callbacks.onConfigurationChanged != NULL) {
code->callbacks.onConfigurationChanged(code);
}
}
}
static void onTrimMemory_native(JNIEnv *env, jobject javaGameActivity,
jlong handle, jint level) {
LOG_TRACE("onTrimMemory_native");
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
if (code->callbacks.onTrimMemory != NULL) {
code->callbacks.onTrimMemory(code, level);
}
}
}
static void onWindowFocusChanged_native(JNIEnv *env, jobject javaGameActivity,
jlong handle, jboolean focused) {
LOG_TRACE("onWindowFocusChanged_native");
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
if (code->callbacks.onWindowFocusChanged != NULL) {
code->callbacks.onWindowFocusChanged(code, focused ? 1 : 0);
}
}
}
static void onSurfaceCreated_native(JNIEnv *env, jobject javaGameActivity,
jlong handle, jobject surface) {
ALOGV("onSurfaceCreated_native");
LOG_TRACE("onSurfaceCreated_native");
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
code->setSurface(surface);
if (code->nativeWindow != NULL &&
code->callbacks.onNativeWindowCreated != NULL) {
code->callbacks.onNativeWindowCreated(code, code->nativeWindow);
}
}
}
static void onSurfaceChanged_native(JNIEnv *env, jobject javaGameActivity,
jlong handle, jobject surface, jint format,
jint width, jint height) {
LOG_TRACE("onSurfaceChanged_native");
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
ANativeWindow *oldNativeWindow = code->nativeWindow;
// Fix for window being destroyed behind the scenes on older Android
// versions.
if (oldNativeWindow != NULL) {
ANativeWindow_acquire(oldNativeWindow);
}
code->setSurface(surface);
if (oldNativeWindow != code->nativeWindow) {
if (oldNativeWindow != NULL &&
code->callbacks.onNativeWindowDestroyed != NULL) {
code->callbacks.onNativeWindowDestroyed(code, oldNativeWindow);
}
if (code->nativeWindow != NULL) {
if (code->callbacks.onNativeWindowCreated != NULL) {
code->callbacks.onNativeWindowCreated(code,
code->nativeWindow);
}
code->lastWindowWidth =
ANativeWindow_getWidth(code->nativeWindow);
code->lastWindowHeight =
ANativeWindow_getHeight(code->nativeWindow);
}
} else {
// Maybe it was resized?
int32_t newWidth = ANativeWindow_getWidth(code->nativeWindow);
int32_t newHeight = ANativeWindow_getHeight(code->nativeWindow);
if (newWidth != code->lastWindowWidth ||
newHeight != code->lastWindowHeight) {
if (code->callbacks.onNativeWindowResized != NULL) {
code->callbacks.onNativeWindowResized(
code, code->nativeWindow, newWidth, newHeight);
}
}
}
// Release the window we acquired earlier.
if (oldNativeWindow != NULL) {
ANativeWindow_release(oldNativeWindow);
}
}
}
static void onSurfaceRedrawNeeded_native(JNIEnv *env, jobject javaGameActivity,
jlong handle) {
LOG_TRACE("onSurfaceRedrawNeeded_native");
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
if (code->nativeWindow != NULL &&
code->callbacks.onNativeWindowRedrawNeeded != NULL) {
code->callbacks.onNativeWindowRedrawNeeded(code,
code->nativeWindow);
}
}
}
static void onSurfaceDestroyed_native(JNIEnv *env, jobject javaGameActivity,
jlong handle) {
LOG_TRACE("onSurfaceDestroyed_native");
if (handle != 0) {
NativeCode *code = (NativeCode *)handle;
if (code->nativeWindow != NULL &&
code->callbacks.onNativeWindowDestroyed != NULL) {
code->callbacks.onNativeWindowDestroyed(code, code->nativeWindow);
}
code->setSurface(NULL);
}
}
static bool enabledAxes[GAME_ACTIVITY_POINTER_INFO_AXIS_COUNT] = {
/* AMOTION_EVENT_AXIS_X */ true,
/* AMOTION_EVENT_AXIS_Y */ true,
// Disable all other axes by default (they can be enabled using
// `GameActivityPointerAxes_enableAxis`).
false};
extern "C" void GameActivityPointerAxes_enableAxis(int32_t axis) {
if (axis < 0 || axis >= GAME_ACTIVITY_POINTER_INFO_AXIS_COUNT) {
return;
}
enabledAxes[axis] = true;
}
extern "C" void GameActivityPointerAxes_disableAxis(int32_t axis) {
if (axis < 0 || axis >= GAME_ACTIVITY_POINTER_INFO_AXIS_COUNT) {
return;
}
enabledAxes[axis] = false;
}
extern "C" void GameActivity_setImeEditorInfo(GameActivity *activity,
int inputType, int actionId,
int imeOptions) {
JNIEnv *env;
if (activity->vm->AttachCurrentThread(&env, NULL) == JNI_OK) {
env->CallVoidMethod(activity->javaGameActivity,
gGameActivityClassInfo.setImeEditorInfoFields,
inputType, actionId, imeOptions);
}
}
static struct {
jmethodID getDeviceId;
jmethodID getSource;
jmethodID getAction;
jmethodID getEventTime;
jmethodID getDownTime;
jmethodID getFlags;
jmethodID getMetaState;
jmethodID getActionButton;
jmethodID getButtonState;
jmethodID getClassification;
jmethodID getEdgeFlags;
jmethodID getPointerCount;
jmethodID getPointerId;
jmethodID getRawX;
jmethodID getRawY;
jmethodID getXPrecision;
jmethodID getYPrecision;
jmethodID getAxisValue;
} gMotionEventClassInfo;
extern "C" void GameActivityMotionEvent_fromJava(
JNIEnv *env, jobject motionEvent, GameActivityMotionEvent *out_event) {
static bool gMotionEventClassInfoInitialized = false;
if (!gMotionEventClassInfoInitialized) {
int sdkVersion = GetSystemPropAsInt("ro.build.version.sdk");
gMotionEventClassInfo = {0};
jclass motionEventClass = env->FindClass("android/view/MotionEvent");
gMotionEventClassInfo.getDeviceId =
env->GetMethodID(motionEventClass, "getDeviceId", "()I");
gMotionEventClassInfo.getSource =
env->GetMethodID(motionEventClass, "getSource", "()I");
gMotionEventClassInfo.getAction =
env->GetMethodID(motionEventClass, "getAction", "()I");
gMotionEventClassInfo.getEventTime =
env->GetMethodID(motionEventClass, "getEventTime", "()J");
gMotionEventClassInfo.getDownTime =
env->GetMethodID(motionEventClass, "getDownTime", "()J");
gMotionEventClassInfo.getFlags =
env->GetMethodID(motionEventClass, "getFlags", "()I");
gMotionEventClassInfo.getMetaState =
env->GetMethodID(motionEventClass, "getMetaState", "()I");
if (sdkVersion >= 23) {
gMotionEventClassInfo.getActionButton =
env->GetMethodID(motionEventClass, "getActionButton", "()I");
}
if (sdkVersion >= 14) {
gMotionEventClassInfo.getButtonState =
env->GetMethodID(motionEventClass, "getButtonState", "()I");
}
if (sdkVersion >= 29) {
gMotionEventClassInfo.getClassification =
env->GetMethodID(motionEventClass, "getClassification", "()I");
}
gMotionEventClassInfo.getEdgeFlags =
env->GetMethodID(motionEventClass, "getEdgeFlags", "()I");
gMotionEventClassInfo.getPointerCount =
env->GetMethodID(motionEventClass, "getPointerCount", "()I");
gMotionEventClassInfo.getPointerId =
env->GetMethodID(motionEventClass, "getPointerId", "(I)I");
if (sdkVersion >= 29) {
gMotionEventClassInfo.getRawX =
env->GetMethodID(motionEventClass, "getRawX", "(I)F");
gMotionEventClassInfo.getRawY =
env->GetMethodID(motionEventClass, "getRawY", "(I)F");
}
gMotionEventClassInfo.getXPrecision =
env->GetMethodID(motionEventClass, "getXPrecision", "()F");
gMotionEventClassInfo.getYPrecision =
env->GetMethodID(motionEventClass, "getYPrecision", "()F");
gMotionEventClassInfo.getAxisValue =
env->GetMethodID(motionEventClass, "getAxisValue", "(II)F");
gMotionEventClassInfoInitialized = true;
}
int pointerCount =
env->CallIntMethod(motionEvent, gMotionEventClassInfo.getPointerCount);
pointerCount =
std::min(pointerCount, GAMEACTIVITY_MAX_NUM_POINTERS_IN_MOTION_EVENT);
out_event->pointerCount = pointerCount;
for (int i = 0; i < pointerCount; ++i) {
out_event->pointers[i] = {
/*id=*/env->CallIntMethod(motionEvent,
gMotionEventClassInfo.getPointerId, i),
/*axisValues=*/{0},
/*rawX=*/gMotionEventClassInfo.getRawX
? env->CallFloatMethod(motionEvent,
gMotionEventClassInfo.getRawX, i)
: 0,
/*rawY=*/gMotionEventClassInfo.getRawY
? env->CallFloatMethod(motionEvent,
gMotionEventClassInfo.getRawY, i)
: 0,
};
for (int axisIndex = 0;
axisIndex < GAME_ACTIVITY_POINTER_INFO_AXIS_COUNT; ++axisIndex) {
if (enabledAxes[axisIndex]) {
out_event->pointers[i].axisValues[axisIndex] =
env->CallFloatMethod(motionEvent,
gMotionEventClassInfo.getAxisValue,
axisIndex, i);
}
}
}
out_event->deviceId =
env->CallIntMethod(motionEvent, gMotionEventClassInfo.getDeviceId);
out_event->source =
env->CallIntMethod(motionEvent, gMotionEventClassInfo.getSource);
out_event->action =
env->CallIntMethod(motionEvent, gMotionEventClassInfo.getAction);
out_event->eventTime =
env->CallLongMethod(motionEvent, gMotionEventClassInfo.getEventTime) *
1000000;
out_event->downTime =
env->CallLongMethod(motionEvent, gMotionEventClassInfo.getDownTime) *
1000000;
out_event->flags =
env->CallIntMethod(motionEvent, gMotionEventClassInfo.getFlags);
out_event->metaState =
env->CallIntMethod(motionEvent, gMotionEventClassInfo.getMetaState);
out_event->actionButton =
gMotionEventClassInfo.getActionButton
? env->CallIntMethod(motionEvent,
gMotionEventClassInfo.getActionButton)
: 0;
out_event->buttonState =
gMotionEventClassInfo.getButtonState
? env->CallIntMethod(motionEvent,
gMotionEventClassInfo.getButtonState)
: 0;
out_event->classification =
gMotionEventClassInfo.getClassification
? env->CallIntMethod(motionEvent,
gMotionEventClassInfo.getClassification)
: 0;
out_event->edgeFlags =
env->CallIntMethod(motionEvent, gMotionEventClassInfo.getEdgeFlags);
out_event->precisionX =
env->CallFloatMethod(motionEvent, gMotionEventClassInfo.getXPrecision);
out_event->precisionY =
env->CallFloatMethod(motionEvent, gMotionEventClassInfo.getYPrecision);
}
static struct {
jmethodID getDeviceId;
jmethodID getSource;
jmethodID getAction;
jmethodID getEventTime;
jmethodID getDownTime;
jmethodID getFlags;
jmethodID getMetaState;
jmethodID getModifiers;
jmethodID getRepeatCount;
jmethodID getKeyCode;
jmethodID getUnicodeChar;
} gKeyEventClassInfo;
extern "C" void GameActivityKeyEvent_fromJava(JNIEnv *env, jobject keyEvent,
GameActivityKeyEvent *out_event) {
static bool gKeyEventClassInfoInitialized = false;
if (!gKeyEventClassInfoInitialized) {
int sdkVersion = GetSystemPropAsInt("ro.build.version.sdk");
gKeyEventClassInfo = {0};
jclass keyEventClass = env->FindClass("android/view/KeyEvent");
gKeyEventClassInfo.getDeviceId =
env->GetMethodID(keyEventClass, "getDeviceId", "()I");
gKeyEventClassInfo.getSource =
env->GetMethodID(keyEventClass, "getSource", "()I");
gKeyEventClassInfo.getAction =
env->GetMethodID(keyEventClass, "getAction", "()I");
gKeyEventClassInfo.getEventTime =
env->GetMethodID(keyEventClass, "getEventTime", "()J");
gKeyEventClassInfo.getDownTime =
env->GetMethodID(keyEventClass, "getDownTime", "()J");
gKeyEventClassInfo.getFlags =
env->GetMethodID(keyEventClass, "getFlags", "()I");
gKeyEventClassInfo.getMetaState =
env->GetMethodID(keyEventClass, "getMetaState", "()I");
if (sdkVersion >= 13) {
gKeyEventClassInfo.getModifiers =
env->GetMethodID(keyEventClass, "getModifiers", "()I");
}
gKeyEventClassInfo.getRepeatCount =
env->GetMethodID(keyEventClass, "getRepeatCount", "()I");
gKeyEventClassInfo.getKeyCode =
env->GetMethodID(keyEventClass, "getKeyCode", "()I");
gKeyEventClassInfo.getUnicodeChar =
env->GetMethodID(keyEventClass, "getUnicodeChar", "()I");
gKeyEventClassInfoInitialized = true;
}
*out_event = {
/*deviceId=*/env->CallIntMethod(keyEvent,
gKeyEventClassInfo.getDeviceId),
/*source=*/env->CallIntMethod(keyEvent, gKeyEventClassInfo.getSource),
/*action=*/env->CallIntMethod(keyEvent, gKeyEventClassInfo.getAction),
// TODO: introduce a millisecondsToNanoseconds helper:
/*eventTime=*/
env->CallLongMethod(keyEvent, gKeyEventClassInfo.getEventTime) *
1000000,
/*downTime=*/
env->CallLongMethod(keyEvent, gKeyEventClassInfo.getDownTime) * 1000000,
/*flags=*/env->CallIntMethod(keyEvent, gKeyEventClassInfo.getFlags),
/*metaState=*/
env->CallIntMethod(keyEvent, gKeyEventClassInfo.getMetaState),
/*modifiers=*/gKeyEventClassInfo.getModifiers
? env->CallIntMethod(keyEvent, gKeyEventClassInfo.getModifiers)
: 0,
/*repeatCount=*/
env->CallIntMethod(keyEvent, gKeyEventClassInfo.getRepeatCount),
/*keyCode=*/
env->CallIntMethod(keyEvent, gKeyEventClassInfo.getKeyCode),
/*unicodeChar=*/
env->CallIntMethod(keyEvent, gKeyEventClassInfo.getUnicodeChar)};
}
static bool onTouchEvent_native(JNIEnv *env, jobject javaGameActivity,
jlong handle, jobject motionEvent) {
if (handle == 0) return false;
NativeCode *code = (NativeCode *)handle;
if (code->callbacks.onTouchEvent == nullptr) return false;
static GameActivityMotionEvent c_event;
GameActivityMotionEvent_fromJava(env, motionEvent, &c_event);
return code->callbacks.onTouchEvent(code, &c_event);
}
static bool onKeyUp_native(JNIEnv *env, jobject javaGameActivity, jlong handle,
jobject keyEvent) {
if (handle == 0) return false;
NativeCode *code = (NativeCode *)handle;
if (code->callbacks.onKeyUp == nullptr) return false;
static GameActivityKeyEvent c_event;
GameActivityKeyEvent_fromJava(env, keyEvent, &c_event);
return code->callbacks.onKeyUp(code, &c_event);
}
static bool onKeyDown_native(JNIEnv *env, jobject javaGameActivity,
jlong handle, jobject keyEvent) {
if (handle == 0) return false;
NativeCode *code = (NativeCode *)handle;
if (code->callbacks.onKeyDown == nullptr) return false;
static GameActivityKeyEvent c_event;
GameActivityKeyEvent_fromJava(env, keyEvent, &c_event);
return code->callbacks.onKeyDown(code, &c_event);
}
static void onTextInput_native(JNIEnv *env, jobject activity, jlong handle,
jobject textInputEvent) {
if (handle == 0) return;
NativeCode *code = (NativeCode *)handle;
GameTextInput_processEvent(code->gameTextInput, textInputEvent);
}
static void onWindowInsetsChanged_native(JNIEnv *env, jobject activity,
jlong handle) {
if (handle == 0) return;
NativeCode *code = (NativeCode *)handle;
if (code->callbacks.onWindowInsetsChanged == nullptr) return;
for (int type = 0; type < GAMECOMMON_INSETS_TYPE_COUNT; ++type) {
jobject jinsets;
// Note that waterfall insets are handled differently on the Java side.
if (type == GAMECOMMON_INSETS_TYPE_WATERFALL) {
jinsets = env->CallObjectMethod(
code->javaGameActivity,
gGameActivityClassInfo.getWaterfallInsets);
} else {
jint jtype = env->CallStaticIntMethod(
gWindowInsetsCompatTypeClassInfo.clazz,
gWindowInsetsCompatTypeClassInfo.methods[type]);
jinsets = env->CallObjectMethod(
code->javaGameActivity, gGameActivityClassInfo.getWindowInsets,
jtype);
}
ARect &insets = code->insetsState[type];
if (jinsets == nullptr) {
insets.left = 0;
insets.right = 0;
insets.top = 0;
insets.bottom = 0;
} else {
insets.left = env->GetIntField(jinsets, gInsetsClassInfo.left);
insets.right = env->GetIntField(jinsets, gInsetsClassInfo.right);
insets.top = env->GetIntField(jinsets, gInsetsClassInfo.top);
insets.bottom = env->GetIntField(jinsets, gInsetsClassInfo.bottom);
}
}
GameTextInput_processImeInsets(
code->gameTextInput, &code->insetsState[GAMECOMMON_INSETS_TYPE_IME]);
code->callbacks.onWindowInsetsChanged(code);
}
static void setInputConnection_native(JNIEnv *env, jobject activity,
jlong handle, jobject inputConnection) {
NativeCode *code = (NativeCode *)handle;
GameTextInput_setInputConnection(code->gameTextInput, inputConnection);
}
static const JNINativeMethod g_methods[] = {
{"initializeNativeCode",
"(Ljava/lang/String;Ljava/lang/String;"
"Ljava/lang/String;Landroid/content/res/AssetManager;[B)J",
(void *)initializeNativeCode_native},
{"getDlError", "()Ljava/lang/String;", (void *)getDlError_native},
{"terminateNativeCode", "(J)V", (void *)terminateNativeCode_native},
{"onStartNative", "(J)V", (void *)onStart_native},
{"onResumeNative", "(J)V", (void *)onResume_native},
{"onSaveInstanceStateNative", "(J)[B", (void *)onSaveInstanceState_native},
{"onPauseNative", "(J)V", (void *)onPause_native},
{"onStopNative", "(J)V", (void *)onStop_native},
{"onConfigurationChangedNative", "(J)V",
(void *)onConfigurationChanged_native},
{"onTrimMemoryNative", "(JI)V", (void *)onTrimMemory_native},
{"onWindowFocusChangedNative", "(JZ)V",
(void *)onWindowFocusChanged_native},
{"onSurfaceCreatedNative", "(JLandroid/view/Surface;)V",
(void *)onSurfaceCreated_native},
{"onSurfaceChangedNative", "(JLandroid/view/Surface;III)V",
(void *)onSurfaceChanged_native},
{"onSurfaceRedrawNeededNative", "(JLandroid/view/Surface;)V",
(void *)onSurfaceRedrawNeeded_native},
{"onSurfaceDestroyedNative", "(J)V", (void *)onSurfaceDestroyed_native},
{"onTouchEventNative", "(JLandroid/view/MotionEvent;)Z",
(void *)onTouchEvent_native},
{"onKeyDownNative", "(JLandroid/view/KeyEvent;)Z",
(void *)onKeyDown_native},
{"onKeyUpNative", "(JLandroid/view/KeyEvent;)Z", (void *)onKeyUp_native},
{"onTextInputEventNative",
"(JLcom/google/androidgamesdk/gametextinput/State;)V",
(void *)onTextInput_native},
{"onWindowInsetsChangedNative", "(J)V",
(void *)onWindowInsetsChanged_native},
{"setInputConnectionNative",
"(JLcom/google/androidgamesdk/gametextinput/InputConnection;)V",
(void *)setInputConnection_native},
};
static const char *const kGameActivityPathName =
"com/google/androidgamesdk/GameActivity";
static const char *const kInsetsPathName = "androidx/core/graphics/Insets";
static const char *const kWindowInsetsCompatTypePathName =
"androidx/core/view/WindowInsetsCompat$Type";
#define FIND_CLASS(var, className) \
var = env->FindClass(className); \
LOG_FATAL_IF(!var, "Unable to find class %s", className);
#define GET_METHOD_ID(var, clazz, methodName, fieldDescriptor) \
var = env->GetMethodID(clazz, methodName, fieldDescriptor); \
LOG_FATAL_IF(!var, "Unable to find method %s", methodName);
#define GET_STATIC_METHOD_ID(var, clazz, methodName, fieldDescriptor) \
var = env->GetStaticMethodID(clazz, methodName, fieldDescriptor); \
LOG_FATAL_IF(!var, "Unable to find static method %s", methodName);
#define GET_FIELD_ID(var, clazz, fieldName, fieldDescriptor) \
var = env->GetFieldID(clazz, fieldName, fieldDescriptor); \
LOG_FATAL_IF(!var, "Unable to find field %s", fieldName);
static int jniRegisterNativeMethods(JNIEnv *env, const char *className,
const JNINativeMethod *methods,
int numMethods) {
ALOGV("Registering %s's %d native methods...", className, numMethods);
jclass clazz = env->FindClass(className);
LOG_FATAL_IF(clazz == nullptr,
"Native registration unable to find class '%s'; aborting...",
className);
int result = env->RegisterNatives(clazz, methods, numMethods);
env->DeleteLocalRef(clazz);
if (result == 0) {
return 0;
}
// Failure to register natives is fatal. Try to report the corresponding
// exception, otherwise abort with generic failure message.
jthrowable thrown = env->ExceptionOccurred();
if (thrown != NULL) {
env->ExceptionDescribe();
env->DeleteLocalRef(thrown);
}
LOG_FATAL("RegisterNatives failed for '%s'; aborting...", className);
}
extern "C" int GameActivity_register(JNIEnv *env) {
ALOGD("GameActivity_register");
jclass activity_class;
FIND_CLASS(activity_class, kGameActivityPathName);
GET_METHOD_ID(gGameActivityClassInfo.finish, activity_class, "finish",
"()V");
GET_METHOD_ID(gGameActivityClassInfo.setWindowFlags, activity_class,
"setWindowFlags", "(II)V");
GET_METHOD_ID(gGameActivityClassInfo.getWindowInsets, activity_class,
"getWindowInsets", "(I)Landroidx/core/graphics/Insets;");
GET_METHOD_ID(gGameActivityClassInfo.getWaterfallInsets, activity_class,
"getWaterfallInsets", "()Landroidx/core/graphics/Insets;");
GET_METHOD_ID(gGameActivityClassInfo.setImeEditorInfoFields, activity_class,
"setImeEditorInfoFields", "(III)V");
jclass insets_class;
FIND_CLASS(insets_class, kInsetsPathName);
GET_FIELD_ID(gInsetsClassInfo.left, insets_class, "left", "I");
GET_FIELD_ID(gInsetsClassInfo.right, insets_class, "right", "I");
GET_FIELD_ID(gInsetsClassInfo.top, insets_class, "top", "I");
GET_FIELD_ID(gInsetsClassInfo.bottom, insets_class, "bottom", "I");
jclass windowInsetsCompatType_class;
FIND_CLASS(windowInsetsCompatType_class, kWindowInsetsCompatTypePathName);
gWindowInsetsCompatTypeClassInfo.clazz =
(jclass)env->NewGlobalRef(windowInsetsCompatType_class);
// These names must match, in order, the GameCommonInsetsType enum fields
// Note that waterfall is handled differently by the insets API, so we
// exclude it here.
const char *methodNames[GAMECOMMON_INSETS_TYPE_WATERFALL] = {
"captionBar",
"displayCutout",
"ime",
"mandatorySystemGestures",
"navigationBars",
"statusBars",
"systemBars",
"systemGestures",
"tappableElement"};
for (int i = 0; i < GAMECOMMON_INSETS_TYPE_WATERFALL; ++i) {
GET_STATIC_METHOD_ID(gWindowInsetsCompatTypeClassInfo.methods[i],
windowInsetsCompatType_class, methodNames[i],
"()I");
}
return jniRegisterNativeMethods(env, kGameActivityPathName, g_methods,
NELEM(g_methods));
}
// Register this method so that GameActiviy_register does not need to be called
// manually.
extern "C" JNIEXPORT jlong JNICALL
Java_com_google_androidgamesdk_GameActivity_initializeNativeCode(
JNIEnv *env, jobject javaGameActivity,
jstring internalDataDir, jstring obbDir, jstring externalDataDir,
jobject jAssetMgr, jbyteArray savedState) {
GameActivity_register(env);
jlong nativeCode = initializeNativeCode_native(
env, javaGameActivity,internalDataDir, obbDir,
externalDataDir, jAssetMgr, savedState);
return nativeCode;
}