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/*
* Copyright (C) 2012-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "ImageFile.h"
#include "ServiceBroker.h"
#include "TextureCache.h"
#include "URL.h"
using namespace XFILE;
CImageFile::CImageFile(void) = default;
CImageFile::~CImageFile(void)
{
Close();
}
bool CImageFile::Open(const CURL& url)
{
std::string file = url.Get();
bool needsRecaching = false;
std::string cachedFile =
CServiceBroker::GetTextureCache()->CheckCachedImage(file, needsRecaching);
if (cachedFile.empty())
{ // not in the cache, so cache it
cachedFile = CServiceBroker::GetTextureCache()->CacheImage(file);
}
if (!cachedFile.empty())
{ // in the cache, return what we have
if (m_file.Open(cachedFile))
return true;
}
return false;
}
bool CImageFile::Exists(const CURL& url)
{
bool needsRecaching = false;
std::string cachedFile =
CServiceBroker::GetTextureCache()->CheckCachedImage(url.Get(), needsRecaching);
if (!cachedFile.empty())
{
if (CFile::Exists(cachedFile, false))
return true;
else
// Remove from cache so it gets cached again on next Open()
CServiceBroker::GetTextureCache()->ClearCachedImage(url.Get());
}
// need to check if the original can be cached on demand and that the file exists
if (!CTextureCache::CanCacheImageURL(url))
return false;
return CFile::Exists(url.GetHostName());
}
int CImageFile::Stat(const CURL& url, struct __stat64* buffer)
{
bool needsRecaching = false;
std::string cachedFile =
CServiceBroker::GetTextureCache()->CheckCachedImage(url.Get(), needsRecaching);
if (!cachedFile.empty())
return CFile::Stat(cachedFile, buffer);
/*
Doesn't exist in the cache yet. We have 3 options here:
1. Cache the file and do the Stat() on the cached file.
2. Do the Stat() on the original file.
3. Return -1;
Only 1 will return valid results, at the cost of being time consuming. ATM we do 3 under
the theory that the only user of this is the webinterface currently, where Stat() is not
required.
*/
return -1;
}
ssize_t CImageFile::Read(void* lpBuf, size_t uiBufSize)
{
return m_file.Read(lpBuf, uiBufSize);
}
int64_t CImageFile::Seek(int64_t iFilePosition, int iWhence /*=SEEK_SET*/)
{
return m_file.Seek(iFilePosition, iWhence);
}
void CImageFile::Close()
{
m_file.Close();
}
int64_t CImageFile::GetPosition()
{
return m_file.GetPosition();
}
int64_t CImageFile::GetLength()
{
return m_file.GetLength();
}
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