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8a9597e32e
The constant DESIRED_BUFFER_SIZE was determined by multiplying the old hardcoded value 32 with the default GCZ block size 16 KiB. Not sure if it actually is the best value, but it seems fine.
52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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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/File.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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bool IsDataSizeAccurate() const override { return true; }
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u64 GetBlockSize() const override { return ECC_BLOCK_SIZE; }
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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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