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https://github.com/dolphin-emu/dolphin.git
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a87dffe52d
Previously, we had WBFS and CISO which both returned an upper bound of the size, and other formats which returned an accurate size. But now we also have NFS, which returns a lower bound of the size. To allow VolumeVerifier to make better informed decisions for NFS, let's use an enum instead of a bool for the type of data size a blob has.
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <memory>
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#include <string>
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#include "Common/CommonTypes.h"
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#include "Common/IOFile.h"
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#include "DiscIO/Blob.h"
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#ifdef _WIN32
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#include <windows.h>
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#include <winioctl.h>
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#endif
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namespace DiscIO
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{
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class DriveReader : public SectorReader
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{
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public:
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static std::unique_ptr<DriveReader> Create(const std::string& drive);
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~DriveReader();
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BlobType GetBlobType() const override { return BlobType::DRIVE; }
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u64 GetRawSize() const override { return m_size; }
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u64 GetDataSize() const override { return m_size; }
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DataSizeType GetDataSizeType() const override { return DataSizeType::Accurate; }
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u64 GetBlockSize() const override { return ECC_BLOCK_SIZE; }
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bool HasFastRandomAccessInBlock() const override { return false; }
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std::string GetCompressionMethod() const override { return {}; }
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std::optional<int> GetCompressionLevel() const override { return std::nullopt; }
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private:
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DriveReader(const std::string& drive);
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bool GetBlock(u64 block_num, u8* out_ptr) override;
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bool ReadMultipleAlignedBlocks(u64 block_num, u64 num_blocks, u8* out_ptr) override;
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#ifdef _WIN32
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HANDLE m_disc_handle = INVALID_HANDLE_VALUE;
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PREVENT_MEDIA_REMOVAL m_lock_cdrom;
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bool IsOK() const { return m_disc_handle != INVALID_HANDLE_VALUE; }
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#else
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File::IOFile m_file;
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bool IsOK() const { return m_file.IsOpen() && m_file.IsGood(); }
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#endif
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static constexpr u64 ECC_BLOCK_SIZE = 0x8000;
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u64 m_size = 0;
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};
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} // namespace DiscIO
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