178 lines
4.8 KiB
C++
178 lines
4.8 KiB
C++
/*************************************************************************/
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/* file_access_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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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2017 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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#include "file_access_android.h"
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#include "print_string.h"
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AAssetManager *FileAccessAndroid::asset_manager = NULL;
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/*void FileAccessAndroid::make_default() {
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create_func=create_android;
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}*/
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FileAccess *FileAccessAndroid::create_android() {
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return memnew(FileAccessAndroid);
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}
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Error FileAccessAndroid::_open(const String &p_path, int p_mode_flags) {
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String path = fix_path(p_path).simplify_path();
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if (path.begins_with("/"))
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path = path.substr(1, path.length());
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else if (path.begins_with("res://"))
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path = path.substr(6, path.length());
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ERR_FAIL_COND_V(p_mode_flags & FileAccess::WRITE, ERR_UNAVAILABLE); //can't write on android..
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a = AAssetManager_open(asset_manager, path.utf8().get_data(), AASSET_MODE_STREAMING);
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if (!a)
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return ERR_CANT_OPEN;
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//ERR_FAIL_COND_V(!a,ERR_FILE_NOT_FOUND);
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len = AAsset_getLength(a);
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pos = 0;
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eof = false;
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return OK;
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}
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void FileAccessAndroid::close() {
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if (!a)
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return;
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AAsset_close(a);
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a = NULL;
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}
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bool FileAccessAndroid::is_open() const {
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return a != NULL;
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}
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void FileAccessAndroid::seek(size_t p_position) {
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ERR_FAIL_COND(!a);
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AAsset_seek(a, p_position, SEEK_SET);
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pos = p_position;
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if (pos > len) {
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pos = len;
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eof = true;
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} else {
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eof = false;
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}
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}
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void FileAccessAndroid::seek_end(int64_t p_position) {
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ERR_FAIL_COND(!a);
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AAsset_seek(a, p_position, SEEK_END);
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pos = len + p_position;
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}
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size_t FileAccessAndroid::get_pos() const {
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return pos;
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}
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size_t FileAccessAndroid::get_len() const {
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return len;
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}
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bool FileAccessAndroid::eof_reached() const {
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return eof;
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}
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uint8_t FileAccessAndroid::get_8() const {
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if (pos >= len) {
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eof = true;
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return 0;
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}
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uint8_t byte;
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AAsset_read(a, &byte, 1);
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pos++;
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return byte;
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}
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int FileAccessAndroid::get_buffer(uint8_t *p_dst, int p_length) const {
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off_t r = AAsset_read(a, p_dst, p_length);
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if (pos + p_length > len) {
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eof = true;
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}
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if (r >= 0) {
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pos += r;
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if (pos > len) {
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pos = len;
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}
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}
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return r;
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}
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Error FileAccessAndroid::get_error() const {
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return eof ? ERR_FILE_EOF : OK; //not sure what else it may happen
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}
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void FileAccessAndroid::store_8(uint8_t p_dest) {
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ERR_FAIL();
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}
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bool FileAccessAndroid::file_exists(const String &p_path) {
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String path = fix_path(p_path).simplify_path();
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if (path.begins_with("/"))
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path = path.substr(1, path.length());
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else if (path.begins_with("res://"))
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path = path.substr(6, path.length());
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AAsset *at = AAssetManager_open(asset_manager, path.utf8().get_data(), AASSET_MODE_STREAMING);
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if (!at)
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return false;
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AAsset_close(at);
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return true;
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}
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FileAccessAndroid::FileAccessAndroid() {
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a = NULL;
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eof = false;
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}
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FileAccessAndroid::~FileAccessAndroid() {
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close();
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}
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