Adding upstream version 2:20.4+dfsg.upstream/2%20.4+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 73 insertions, 0 deletions

diff --git a/xbmc/filesystem/UDFBlockInput.cpp b/xbmc/filesystem/UDFBlockInput.cpp
new file mode 100644
index 0000000..b4eb265
--- /dev/null
+++ b/xbmc/filesystem/UDFBlockInput.cpp
@@ -0,0 +1,73 @@
+/*
+ *  Copyright (C) 2005-2018 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 "UDFBlockInput.h"
+
+#include "filesystem/File.h"
+
+#include <mutex>
+
+#include <udfread/udfread.h>
+
+int CUDFBlockInput::Close(udfread_block_input* bi)
+{
+  auto m_bi = reinterpret_cast<UDF_BI*>(bi);
+
+  m_bi->fp->Close();
+
+  return 0;
+}
+
+uint32_t CUDFBlockInput::Size(udfread_block_input* bi)
+{
+  auto m_bi = reinterpret_cast<UDF_BI*>(bi);
+
+  return static_cast<uint32_t>(m_bi->fp->GetLength() / UDF_BLOCK_SIZE);
+}
+
+int CUDFBlockInput::Read(
+    udfread_block_input* bi, uint32_t lba, void* buf, uint32_t blocks, int flags)
+{
+  auto m_bi = reinterpret_cast<UDF_BI*>(bi);
+  std::unique_lock<CCriticalSection> lock(m_bi->lock);
+
+  int64_t pos = static_cast<int64_t>(lba) * UDF_BLOCK_SIZE;
+
+  if (m_bi->fp->Seek(pos, SEEK_SET) != pos)
+    return -1;
+
+  ssize_t size = blocks * UDF_BLOCK_SIZE;
+  ssize_t read = m_bi->fp->Read(buf, size);
+  if (read > 0)
+    return static_cast<int>(read / UDF_BLOCK_SIZE);
+
+  return static_cast<int>(read);
+}
+
+udfread_block_input* CUDFBlockInput::GetBlockInput(const std::string& file)
+{
+  auto fp = std::make_shared<XFILE::CFile>();
+
+  if (fp->Open(file))
+  {
+    m_bi = std::make_unique<UDF_BI>();
+    if (m_bi)
+    {
+      m_bi->fp = fp;
+      m_bi->bi.close = CUDFBlockInput::Close;
+      m_bi->bi.read = CUDFBlockInput::Read;
+      m_bi->bi.size = CUDFBlockInput::Size;
+
+      return &m_bi->bi;
+    }
+
+    fp->Close();
+  }
+
+  return nullptr;
+}