/*************************************************************************/ /* file_access_jandroid.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #include "file_access_jandroid.h" #include "core/os/os.h" #include "thread_jandroid.h" #include jobject FileAccessJAndroid::io = NULL; jclass FileAccessJAndroid::cls; jmethodID FileAccessJAndroid::_file_open = 0; jmethodID FileAccessJAndroid::_file_get_size = 0; jmethodID FileAccessJAndroid::_file_seek = 0; jmethodID FileAccessJAndroid::_file_read = 0; jmethodID FileAccessJAndroid::_file_tell = 0; jmethodID FileAccessJAndroid::_file_eof = 0; jmethodID FileAccessJAndroid::_file_close = 0; FileAccess *FileAccessJAndroid::create_jandroid() { return memnew(FileAccessJAndroid); } Error FileAccessJAndroid::_open(const String &p_path, int p_mode_flags) { if (is_open()) close(); String path = fix_path(p_path).simplify_path(); if (path.begins_with("/")) path = path.substr(1, path.length()); else if (path.begins_with("res://")) path = path.substr(6, path.length()); JNIEnv *env = ThreadAndroid::get_env(); jstring js = env->NewStringUTF(path.utf8().get_data()); int res = env->CallIntMethod(io, _file_open, js, (p_mode_flags & WRITE) ? true : false); env->DeleteLocalRef(js); OS::get_singleton()->print("fopen: '%s' ret %i\n", path.utf8().get_data(), res); if (res <= 0) return ERR_FILE_CANT_OPEN; id = res; return OK; } void FileAccessJAndroid::close() { if (!is_open()) return; JNIEnv *env = ThreadAndroid::get_env(); env->CallVoidMethod(io, _file_close, id); id = 0; } bool FileAccessJAndroid::is_open() const { return id != 0; } void FileAccessJAndroid::seek(size_t p_position) { JNIEnv *env = ThreadAndroid::get_env(); ERR_FAIL_COND_MSG(!is_open(), "File must be opened before use."); env->CallVoidMethod(io, _file_seek, id, p_position); } void FileAccessJAndroid::seek_end(int64_t p_position) { ERR_FAIL_COND_MSG(!is_open(), "File must be opened before use."); seek(get_len()); } size_t FileAccessJAndroid::get_position() const { JNIEnv *env = ThreadAndroid::get_env(); ERR_FAIL_COND_V_MSG(!is_open(), 0, "File must be opened before use."); return env->CallIntMethod(io, _file_tell, id); } size_t FileAccessJAndroid::get_len() const { JNIEnv *env = ThreadAndroid::get_env(); ERR_FAIL_COND_V_MSG(!is_open(), 0, "File must be opened before use."); return env->CallIntMethod(io, _file_get_size, id); } bool FileAccessJAndroid::eof_reached() const { JNIEnv *env = ThreadAndroid::get_env(); ERR_FAIL_COND_V_MSG(!is_open(), 0, "File must be opened before use."); return env->CallIntMethod(io, _file_eof, id); } uint8_t FileAccessJAndroid::get_8() const { ERR_FAIL_COND_V_MSG(!is_open(), 0, "File must be opened before use."); uint8_t byte; get_buffer(&byte, 1); return byte; } int FileAccessJAndroid::get_buffer(uint8_t *p_dst, int p_length) const { ERR_FAIL_COND_V_MSG(!is_open(), 0, "File must be opened before use."); if (p_length == 0) return 0; JNIEnv *env = ThreadAndroid::get_env(); jbyteArray jca = (jbyteArray)env->CallObjectMethod(io, _file_read, id, p_length); int len = env->GetArrayLength(jca); env->GetByteArrayRegion(jca, 0, len, (jbyte *)p_dst); env->DeleteLocalRef((jobject)jca); return len; } Error FileAccessJAndroid::get_error() const { if (eof_reached()) return ERR_FILE_EOF; return OK; } void FileAccessJAndroid::flush() { } void FileAccessJAndroid::store_8(uint8_t p_dest) { } bool FileAccessJAndroid::file_exists(const String &p_path) { JNIEnv *env = ThreadAndroid::get_env(); String path = fix_path(p_path).simplify_path(); if (path.begins_with("/")) path = path.substr(1, path.length()); else if (path.begins_with("res://")) path = path.substr(6, path.length()); jstring js = env->NewStringUTF(path.utf8().get_data()); int res = env->CallIntMethod(io, _file_open, js, false); if (res <= 0) { env->DeleteLocalRef(js); return false; } env->CallVoidMethod(io, _file_close, res); env->DeleteLocalRef(js); return true; } void FileAccessJAndroid::setup(jobject p_io) { io = p_io; JNIEnv *env = ThreadAndroid::get_env(); jclass c = env->GetObjectClass(io); cls = (jclass)env->NewGlobalRef(c); _file_open = env->GetMethodID(cls, "file_open", "(Ljava/lang/String;Z)I"); _file_get_size = env->GetMethodID(cls, "file_get_size", "(I)I"); _file_tell = env->GetMethodID(cls, "file_tell", "(I)I"); _file_eof = env->GetMethodID(cls, "file_eof", "(I)Z"); _file_seek = env->GetMethodID(cls, "file_seek", "(II)V"); _file_read = env->GetMethodID(cls, "file_read", "(II)[B"); _file_close = env->GetMethodID(cls, "file_close", "(I)V"); } FileAccessJAndroid::FileAccessJAndroid() { id = 0; } FileAccessJAndroid::~FileAccessJAndroid() { if (is_open()) close(); }