GODOT IS OPEN SOURCE

platform/android/file_access_android.cpp

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