1/* Copyright (c) 2013-2014 Jeffrey Pfau
 2 *
 3 * This Source Code Form is subject to the terms of the Mozilla Public
 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 6#include "VFileDevice.h"
 7
 8#include <mgba-util/vfs.h>
 9
10using namespace QGBA;
11
12VFileDevice::VFileDevice(VFile* vf, QObject* parent)
13	: QIODevice(parent)
14	, m_vf(vf)
15{
16	// TODO: Correct mode
17	if (vf) {
18		setOpenMode(QIODevice::ReadWrite);
19	}
20}
21
22VFileDevice::VFileDevice(const QString& filename, QIODevice::OpenMode mode, QObject* parent)
23	: QIODevice(parent)
24{
25	int posixMode = 0;
26	if ((mode & QIODevice::ReadWrite) == QIODevice::ReadWrite) {
27		posixMode = O_RDWR;
28	} else if (mode & QIODevice::ReadOnly) {
29		posixMode = O_RDONLY;
30	} else if (mode & QIODevice::WriteOnly) {
31		posixMode = O_WRONLY;
32	}
33	m_vf = open(filename, posixMode);
34	if (m_vf) {
35		setOpenMode(mode);
36	}
37}
38
39void VFileDevice::close() {
40	if (!m_vf) {
41		return;
42	}
43	QIODevice::close();
44	m_vf->close(m_vf);
45	m_vf = nullptr;
46}
47
48bool VFileDevice::resize(qint64 sz) {
49	m_vf->truncate(m_vf, sz);
50	return true;
51}
52
53bool VFileDevice::seek(qint64 pos) {
54	QIODevice::seek(pos);
55	return m_vf->seek(m_vf, pos, SEEK_SET) == pos;
56}
57
58VFileDevice& VFileDevice::operator=(VFile* vf) {
59	close();
60	m_vf = vf;
61	setOpenMode(QIODevice::ReadWrite);
62	return *this;
63}
64
65qint64 VFileDevice::readData(char* data, qint64 maxSize) {
66	return m_vf->read(m_vf, data, maxSize);
67}
68
69qint64 VFileDevice::writeData(const char* data, qint64 maxSize) {
70	return m_vf->write(m_vf, data, maxSize);
71}
72
73qint64 VFileDevice::size() const {
74	return m_vf->size(m_vf);
75}
76
77VFile* VFileDevice::open(const QString& path, int mode) {
78	return VFileOpen(path.toUtf8().constData(), mode);
79}
80
81VDir* VFileDevice::openDir(const QString& path) {
82	return VDirOpen(path.toUtf8().constData());
83}
84VDir* VFileDevice::openArchive(const QString& path) {
85	return VDirOpenArchive(path.toUtf8().constData());
86}