xbmc/filesystem/XbtFile.h

   1 /*
   2  *  Copyright (C) 2015-2018 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #pragma once
  10
  11 #include "IFile.h"
  12 #include "URL.h"
  13 #include "guilib/XBTF.h"
  14 #include "guilib/XBTFReader.h"
  15
  16 #include <cstdint>
  17 #include <cstdio>
  18 #include <vector>
  19
  20 #include "PlatformDefs.h"
  21
  22 namespace XFILE
  23 {
  24 class CXbtFile : public IFile
  25 {
  26 public:
  27   CXbtFile();
  28   ~CXbtFile() override;
  29
  30   bool Open(const CURL& url) override;
  31   void Close() override;
  32   bool Exists(const CURL& url) override;
  33
  34   int64_t GetPosition() override;
  35   int64_t GetLength() override;
  36
  37   int Stat(struct __stat64* buffer) override;
  38   int Stat(const CURL& url, struct __stat64* buffer) override;
  39
  40   ssize_t Read(void* lpBuf, size_t uiBufSize) override;
  41   int64_t Seek(int64_t iFilePosition, int iWhence = SEEK_SET) override;
  42
  43   uint32_t GetImageWidth() const;
  44   uint32_t GetImageHeight() const;
  45   XB_FMT GetImageFormat() const;
  46   bool HasImageAlpha() const;
  47
  48 private:
  49   bool GetFirstFrame(CXBTFFrame& frame) const;
  50
  51   static bool GetReader(const CURL& url, CXBTFReaderPtr& reader);
  52   static bool GetReaderAndFile(const CURL& url, CXBTFReaderPtr& reader, CXBTFFile& file);
  53   static bool GetFile(const CURL& url, CXBTFFile& file);
  54
  55   CURL m_url;
  56   bool m_open = false;
  57   CXBTFReaderPtr m_xbtfReader;
  58   CXBTFFile m_xbtfFile;
  59
  60   std::vector<uint64_t> m_frameStartPositions;
  61   size_t m_frameIndex = 0;
  62   uint64_t m_positionWithinFrame = 0;
  63   int64_t m_positionTotal = 0;
  64
  65   std::vector<std::vector<uint8_t>> m_unpackedFrames;
  66 };
  67 }