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			253 lines
		
	
	
	
		
			7.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			253 lines
		
	
	
	
		
			7.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*************************************************************************/
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/*  file_access_jandroid.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) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
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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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#ifndef ANDROID_NATIVE_ACTIVITY
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#include "file_access_jandroid.h"
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#include "os/os.h"
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#include <unistd.h>
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#include "thread_jandroid.h"
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jobject FileAccessJAndroid::io=NULL;
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jclass FileAccessJAndroid::cls;
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jmethodID FileAccessJAndroid::_file_open=0;
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jmethodID FileAccessJAndroid::_file_get_size=0;
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jmethodID FileAccessJAndroid::_file_seek=0;
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jmethodID FileAccessJAndroid::_file_read=0;
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jmethodID FileAccessJAndroid::_file_tell=0;
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jmethodID FileAccessJAndroid::_file_eof=0;
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jmethodID FileAccessJAndroid::_file_close=0;
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FileAccess* FileAccessJAndroid::create_jandroid() {
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	return memnew(FileAccessJAndroid);
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}
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Error FileAccessJAndroid::_open(const String& p_path, int p_mode_flags) {
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	if (is_open())
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		close();
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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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	JNIEnv *env = ThreadAndroid::get_env();
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	//OS::get_singleton()->print("env: %p, io %p, fo: %p\n",env,io,_file_open);
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	jstring js = env->NewStringUTF(path.utf8().get_data());
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	int res = env->CallIntMethod(io,_file_open,js,p_mode_flags&WRITE?true:false);
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	env->DeleteLocalRef(js);
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	if (res<=0)
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		return ERR_FILE_CANT_OPEN;
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	id=res;
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	return OK;
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}
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void FileAccessJAndroid::close() {
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	if (!is_open())
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		return;
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	JNIEnv *env = ThreadAndroid::get_env();
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	env->CallVoidMethod(io,_file_close,id);
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	id=0;
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}
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bool FileAccessJAndroid::is_open() const {
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	return id!=0;
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}
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void FileAccessJAndroid::seek(size_t p_position) {
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	JNIEnv *env = ThreadAndroid::get_env();
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	ERR_FAIL_COND(!is_open());
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	env->CallVoidMethod(io,_file_seek,id,p_position);
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}
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void FileAccessJAndroid::seek_end(int64_t p_position) {
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	ERR_FAIL_COND(!is_open());
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	seek(get_len());
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}
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size_t FileAccessJAndroid::get_pos() const {
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	JNIEnv *env = ThreadAndroid::get_env();
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	ERR_FAIL_COND_V(!is_open(),0);
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	return env->CallIntMethod(io,_file_tell,id);
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}
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size_t FileAccessJAndroid::get_len() const {
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	JNIEnv *env = ThreadAndroid::get_env();
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	ERR_FAIL_COND_V(!is_open(),0);
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	return env->CallIntMethod(io,_file_get_size,id);
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}
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bool FileAccessJAndroid::eof_reached() const {
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	JNIEnv *env = ThreadAndroid::get_env();
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	ERR_FAIL_COND_V(!is_open(),0);
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	return env->CallIntMethod(io,_file_eof,id);
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}
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uint8_t FileAccessJAndroid::get_8() const {
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	ERR_FAIL_COND_V(!is_open(),0);
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	uint8_t byte;
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	get_buffer(&byte,1);
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	return byte;
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}
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int FileAccessJAndroid::get_buffer(uint8_t *p_dst, int p_length) const {
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	ERR_FAIL_COND_V(!is_open(),0);
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	if (p_length==0)
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		return 0;
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	JNIEnv *env = ThreadAndroid::get_env();
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	jbyteArray jca = (jbyteArray)env->CallObjectMethod(io,_file_read,id,p_length);
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	int len = env->GetArrayLength(jca);
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	env->GetByteArrayRegion(jca,0,len,(jbyte*)p_dst);
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	env->DeleteLocalRef((jobject)jca);
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	return len;
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}
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Error FileAccessJAndroid::get_error() const {
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	if (eof_reached())
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		return ERR_FILE_EOF;
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	return OK;
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}
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void FileAccessJAndroid::store_8(uint8_t p_dest) {
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}
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bool FileAccessJAndroid::file_exists(const String& p_path) {
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	JNIEnv *env = ThreadAndroid::get_env();
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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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	jstring js = env->NewStringUTF(path.utf8().get_data());
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	int res = env->CallIntMethod(io,_file_open,js,false);
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	if (res<=0)
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		return false;
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	env->CallVoidMethod(io,_file_close,res);
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	env->DeleteLocalRef(js);
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	return true;
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}
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void FileAccessJAndroid::setup(  jobject p_io) {
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	io=p_io;
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	JNIEnv *env = ThreadAndroid::get_env();
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	__android_log_print(ANDROID_LOG_INFO,"godot","STEP5");
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	jclass c = env->GetObjectClass(io);
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	__android_log_print(ANDROID_LOG_INFO,"godot","STEP6");
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	cls=(jclass)env->NewGlobalRef(c);
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	_file_open = env->GetMethodID(cls, "file_open", "(Ljava/lang/String;Z)I");	
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	if(_file_open != 0) {
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		__android_log_print(ANDROID_LOG_INFO,"godot","*******GOT METHOD _file_open ok!!");
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	}
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	_file_get_size = env->GetMethodID(cls, "file_get_size", "(I)I");
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	if(_file_get_size != 0) {
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		__android_log_print(ANDROID_LOG_INFO,"godot","*******GOT METHOD _file_get_size ok!!");
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	}
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	_file_tell = env->GetMethodID(cls, "file_tell", "(I)I");
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	if(_file_tell != 0) {
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		__android_log_print(ANDROID_LOG_INFO,"godot","*******GOT METHOD _file_tell ok!!");
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	}
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	_file_eof = env->GetMethodID(cls, "file_eof", "(I)Z");
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	if(_file_eof != 0) {
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		__android_log_print(ANDROID_LOG_INFO,"godot","*******GOT METHOD _file_eof ok!!");
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	}
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	_file_seek = env->GetMethodID(cls, "file_seek", "(II)V");
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	if(_file_seek != 0) {
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		__android_log_print(ANDROID_LOG_INFO,"godot","*******GOT METHOD _file_seek ok!!");
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	}
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	_file_read = env->GetMethodID(cls, "file_read", "(II)[B");
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	if(_file_read != 0) {
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		__android_log_print(ANDROID_LOG_INFO,"godot","*******GOT METHOD _file_read ok!!");
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	}
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	_file_close = env->GetMethodID(cls, "file_close", "(I)V");
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	if(_file_close != 0) {
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		__android_log_print(ANDROID_LOG_INFO,"godot","*******GOT METHOD _file_close ok!!");
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	}
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//	(*env)->CallVoidMethod(env,obj,aMethodID, myvar);
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}
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FileAccessJAndroid::FileAccessJAndroid()
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{
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	id=0;
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}
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FileAccessJAndroid::~FileAccessJAndroid()
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{
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	if (is_open())
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		close();
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}
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#endif
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