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ByteStream: Devirtualize where unnecessary

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This commit is contained in:
Connor McLaughlin
2022-08-18 21:16:07 +10:00
parent c66a9f117d
commit 0154a594c9
2 changed files with 86 additions and 97 deletions
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128
src/common/byte_stream.h
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@ -144,51 +144,51 @@ protected:
ByteStream& operator=(const ByteStream&) = delete;
};
class NullByteStream : public ByteStream
class NullByteStream final : public ByteStream
{
public:
NullByteStream();
~NullByteStream();
~NullByteStream() override;
virtual bool ReadByte(u8* pDestByte) override final;
virtual u32 Read(void* pDestination, u32 ByteCount) override final;
virtual bool Read2(void* pDestination, u32 ByteCount, u32* pNumberOfBytesRead /* = nullptr */) override final;
virtual bool WriteByte(u8 SourceByte) override final;
virtual u32 Write(const void* pSource, u32 ByteCount) override final;
virtual bool Write2(const void* pSource, u32 ByteCount, u32* pNumberOfBytesWritten /* = nullptr */) override final;
virtual bool SeekAbsolute(u64 Offset) override final;
virtual bool SeekRelative(s64 Offset) override final;
virtual bool SeekToEnd() override final;
virtual u64 GetSize() const override final;
virtual u64 GetPosition() const override final;
virtual bool Flush() override final;
virtual bool Commit() override final;
virtual bool Discard() override final;
bool ReadByte(u8* pDestByte) override;
u32 Read(void* pDestination, u32 ByteCount) override;
bool Read2(void* pDestination, u32 ByteCount, u32* pNumberOfBytesRead /* = nullptr */) override;
bool WriteByte(u8 SourceByte) override;
u32 Write(const void* pSource, u32 ByteCount) override;
bool Write2(const void* pSource, u32 ByteCount, u32* pNumberOfBytesWritten /* = nullptr */) override;
bool SeekAbsolute(u64 Offset) override;
bool SeekRelative(s64 Offset) override;
bool SeekToEnd() override;
u64 GetSize() const override;
u64 GetPosition() const override;
bool Flush() override;
bool Commit() override;
bool Discard() override;
};
class MemoryByteStream : public ByteStream
class MemoryByteStream final : public ByteStream
{
public:
MemoryByteStream(void* pMemory, u32 MemSize);
virtual ~MemoryByteStream();
~MemoryByteStream() override;
u8* GetMemoryPointer() const { return m_pMemory; }
u32 GetMemorySize() const { return m_iSize; }
virtual bool ReadByte(u8* pDestByte) override;
virtual u32 Read(void* pDestination, u32 ByteCount) override;
virtual bool Read2(void* pDestination, u32 ByteCount, u32* pNumberOfBytesRead /* = nullptr */) override;
virtual bool WriteByte(u8 SourceByte) override;
virtual u32 Write(const void* pSource, u32 ByteCount) override;
virtual bool Write2(const void* pSource, u32 ByteCount, u32* pNumberOfBytesWritten /* = nullptr */) override;
virtual bool SeekAbsolute(u64 Offset) override;
virtual bool SeekRelative(s64 Offset) override;
virtual bool SeekToEnd() override;
virtual u64 GetSize() const override;
virtual u64 GetPosition() const override;
virtual bool Flush() override;
virtual bool Commit() override;
virtual bool Discard() override;
bool ReadByte(u8* pDestByte) override;
u32 Read(void* pDestination, u32 ByteCount) override;
bool Read2(void* pDestination, u32 ByteCount, u32* pNumberOfBytesRead /* = nullptr */) override;
bool WriteByte(u8 SourceByte) override;
u32 Write(const void* pSource, u32 ByteCount) override;
bool Write2(const void* pSource, u32 ByteCount, u32* pNumberOfBytesWritten /* = nullptr */) override;
bool SeekAbsolute(u64 Offset) override;
bool SeekRelative(s64 Offset) override;
bool SeekToEnd() override;
u64 GetSize() const override;
u64 GetPosition() const override;
bool Flush() override;
bool Commit() override;
bool Discard() override;
private:
u8* m_pMemory;
@ -196,29 +196,29 @@ private:
u32 m_iSize;
};
class ReadOnlyMemoryByteStream : public ByteStream
class ReadOnlyMemoryByteStream final : public ByteStream
{
public:
ReadOnlyMemoryByteStream(const void* pMemory, u32 MemSize);
virtual ~ReadOnlyMemoryByteStream();
~ReadOnlyMemoryByteStream() override;
const u8* GetMemoryPointer() const { return m_pMemory; }
u32 GetMemorySize() const { return m_iSize; }
virtual bool ReadByte(u8* pDestByte) override;
virtual u32 Read(void* pDestination, u32 ByteCount) override;
virtual bool Read2(void* pDestination, u32 ByteCount, u32* pNumberOfBytesRead /* = nullptr */) override;
virtual bool WriteByte(u8 SourceByte) override;
virtual u32 Write(const void* pSource, u32 ByteCount) override;
virtual bool Write2(const void* pSource, u32 ByteCount, u32* pNumberOfBytesWritten /* = nullptr */) override;
virtual bool SeekAbsolute(u64 Offset) override;
virtual bool SeekRelative(s64 Offset) override;
virtual bool SeekToEnd() override;
virtual u64 GetSize() const override;
virtual u64 GetPosition() const override;
virtual bool Flush() override;
virtual bool Commit() override;
virtual bool Discard() override;
bool ReadByte(u8* pDestByte) override;
u32 Read(void* pDestination, u32 ByteCount) override;
bool Read2(void* pDestination, u32 ByteCount, u32* pNumberOfBytesRead /* = nullptr */) override;
bool WriteByte(u8 SourceByte) override;
u32 Write(const void* pSource, u32 ByteCount) override;
bool Write2(const void* pSource, u32 ByteCount, u32* pNumberOfBytesWritten /* = nullptr */) override;
bool SeekAbsolute(u64 Offset) override;
bool SeekRelative(s64 Offset) override;
bool SeekToEnd() override;
u64 GetSize() const override;
u64 GetPosition() const override;
bool Flush() override;
bool Commit() override;
bool Discard() override;
private:
const u8* m_pMemory;
@ -226,11 +226,11 @@ private:
u32 m_iSize;
};
class GrowableMemoryByteStream : public ByteStream
class GrowableMemoryByteStream final : public ByteStream
{
public:
GrowableMemoryByteStream(void* pInitialMem, u32 InitialMemSize);
virtual ~GrowableMemoryByteStream();
~GrowableMemoryByteStream() override;
u8* GetMemoryPointer() const { return m_pMemory; }
u32 GetMemorySize() const { return m_iMemorySize; }
@ -240,20 +240,20 @@ public:
void EnsureSpace(u32 space);
void ShrinkToFit();
virtual bool ReadByte(u8* pDestByte) override;
virtual u32 Read(void* pDestination, u32 ByteCount) override;
virtual bool Read2(void* pDestination, u32 ByteCount, u32* pNumberOfBytesRead /* = nullptr */) override;
virtual bool WriteByte(u8 SourceByte) override;
virtual u32 Write(const void* pSource, u32 ByteCount) override;
virtual bool Write2(const void* pSource, u32 ByteCount, u32* pNumberOfBytesWritten /* = nullptr */) override;
virtual bool SeekAbsolute(u64 Offset) override;
virtual bool SeekRelative(s64 Offset) override;
virtual bool SeekToEnd() override;
virtual u64 GetSize() const override;
virtual u64 GetPosition() const override;
virtual bool Flush() override;
virtual bool Commit() override;
virtual bool Discard() override;
bool ReadByte(u8* pDestByte) override;
u32 Read(void* pDestination, u32 ByteCount) override;
bool Read2(void* pDestination, u32 ByteCount, u32* pNumberOfBytesRead /* = nullptr */) override;
bool WriteByte(u8 SourceByte) override;
u32 Write(const void* pSource, u32 ByteCount) override;
bool Write2(const void* pSource, u32 ByteCount, u32* pNumberOfBytesWritten /* = nullptr */) override;
bool SeekAbsolute(u64 Offset) override;
bool SeekRelative(s64 Offset) override;
bool SeekToEnd() override;
u64 GetSize() const override;
u64 GetPosition() const override;
bool Flush() override;
bool Commit() override;
bool Discard() override;
private:
void Grow(u32 MinimumGrowth);