/* -*- tab-width:4; c-basic-offset:4 -*- */
/*
* libopenraw - rafcontainer.cpp
*
* Copyright (C) 2011-2017 Hubert Figuière
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <cstdint>
#include <string>
#include <utility>
#include "trace.hpp"
#include "metavalue.hpp"
#include "rafmetacontainer.hpp"
#include "io/stream.hpp"
namespace OpenRaw {
namespace Internals {
RafMetaValue::RafMetaValue(uint16_t tag, uint16_t size, const MetaValue & v)
: m_tag(tag)
, m_size(size)
, m_value(v)
{
}
RafMetaValue::~RafMetaValue()
{
}
RafMetaContainer::RafMetaContainer(const IO::Stream::Ptr &_file)
: RawContainer(_file, 0)
, m_count(0)
{
setEndian(ENDIAN_BIG);
}
uint32_t RafMetaContainer::count()
{
if(m_count == 0) {
_read();
}
return m_count;
}
RafMetaValue::Ref RafMetaContainer::getValue(uint16_t tag)
{
if(m_tags.empty()) {
_read();
}
std::map<uint16_t, RafMetaValue::Ref>::const_iterator iter = m_tags.find(tag);
if(iter != m_tags.end()) {
return iter->second;
}
return RafMetaValue::Ref();
}
void RafMetaContainer::_read()
{
auto result = readUInt32(m_file);
if (result.empty()) {
LOGERR("Couldn't read RAF meta count\n");
return;
}
m_count = result.unwrap();
for(uint32_t i = 0; i < m_count; i++) {
auto result16 = readUInt16(m_file);
if (result16.empty()) {
return;
}
uint16_t tag = result16.unwrap();
result16 = readUInt16(m_file);
if (result16.empty()) {
return;
}
uint16_t size = result16.unwrap();
MetaValue::value_t v;
if(size == 4) {
auto result32 = readUInt32(m_file);
if(result32.ok()) {
v = MetaValue::value_t(result32.unwrap());
}
}
else {
char *content;
content = (char*)calloc(1, size + 1);
content[size] = 0;
m_file->read(content, size);
v = MetaValue::value_t(std::string(content));
free(content);
}
RafMetaValue::Ref value = std::make_shared<RafMetaValue>(tag, size, MetaValue(v));
m_tags.insert(std::make_pair(tag, value));
}
}
}
}