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/*
* Copyright (C) 2012-2013 Team XBMC
* http://xbmc.org
*
* 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 2, 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 XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include "ImageFile.h"
#include "URL.h"
#include "TextureCache.h"
using namespace XFILE;
CImageFile::CImageFile(void)
{
}
CImageFile::~CImageFile(void)
{
Close();
}
bool CImageFile::Open(const CURL& url)
{
std::string file = url.Get();
bool needsRecaching = false;
std::string cachedFile = CTextureCache::GetInstance().CheckCachedImage(file, false, needsRecaching);
if (cachedFile.empty())
{ // not in the cache, so cache it
cachedFile = CTextureCache::GetInstance().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 = CTextureCache::GetInstance().CheckCachedImage(url.Get(), false, needsRecaching);
if (!cachedFile.empty())
return CFile::Exists(cachedFile, false);
// 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 = CTextureCache::GetInstance().CheckCachedImage(url.Get(), false, 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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