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/*
* This file is part of the PulseView project.
*
* Copyright (C) 2015 Daniel Elstner <daniel.kitta@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "assetreader.hpp"
#include <memory>
#include <QtCore/QDebug>
#include <QtCore/QFile>
#include <QtCore/QStandardPaths>
#include <libsigrok/libsigrok.h>
using namespace pv;
using std::string;
using std::unique_ptr;
void AndroidAssetReader::open(struct sr_resource *res, string name)
{
if (res->type == SR_RESOURCE_FIRMWARE) {
auto path = QStandardPaths::locate(QStandardPaths::GenericDataLocation,
QString::fromStdString("sigrok-firmware/" + name));
if (path.isEmpty())
path = QString::fromStdString("assets:/sigrok-firmware/" + name);
unique_ptr<QFile> file {new QFile{path}};
if (!file->open(QIODevice::ReadOnly))
throw sigrok::Error{SR_ERR};
const auto size = file->size();
if (size < 0)
throw sigrok::Error{SR_ERR};
res->size = size;
res->handle = file.release();
} else {
qWarning() << "AndroidAssetReader: Unknown resource type" << res->type;
throw sigrok::Error{SR_ERR};
}
}
void AndroidAssetReader::close(struct sr_resource *res)
{
if (!res->handle) {
qCritical("AndroidAssetReader: Invalid handle");
throw sigrok::Error{SR_ERR_ARG};
}
const unique_ptr<QFile> file {static_cast<QFile*>(res->handle)};
res->handle = nullptr;
file->close();
}
size_t AndroidAssetReader::read(const struct sr_resource *res, void *buf, size_t count)
{
if (!res->handle) {
qCritical("AndroidAssetReader: Invalid handle");
throw sigrok::Error{SR_ERR_ARG};
}
auto *const file = static_cast<QFile*>(res->handle);
const auto n_read = file->read(static_cast<char*>(buf), count);
if (n_read < 0)
throw sigrok::Error{SR_ERR};
return n_read;
}
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