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https://github.com/dolphin-emu/dolphin.git
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deba9ce256
New dolphin-tool command: "header" -b / --block_size -c / --compression -l / --compression_level Informative RVZ/WIA header2 value "compression_level" is now a s32 instead of a u32, because negative compression is a thing. Speaking of, it is now possible to use negative compression levels in dolphin-tool's convert command (not the GUI, though).
55 lines
1.5 KiB
C++
55 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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bool IsDataSizeAccurate() const override { return true; }
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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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