KODI::RETRO::CBasicMemoryStream Class Reference

Inheritance diagram for KODI::RETRO::CBasicMemoryStream:

Collaboration diagram for KODI::RETRO::CBasicMemoryStream:

Public Member Functions
void	Init (size_t frameSize, uint64_t maxFrameCount) override
	Initialize memory stream. More...
void	Reset () override
	Free any resources used by this stream.
size_t	FrameSize () const override
	Return the frame size passed to Init()
uint64_t	MaxFrameCount () const override
	Return the current max frame count.
void	SetMaxFrameCount (uint64_t maxFrameCount) override
	Update the max frame count. More...
uint8_t *	BeginFrame () override
void	SubmitFrame () override
	Indicate that a frame of size FrameSize() has been written to the location returned from BeginFrame()
const uint8_t *	CurrentFrame () const override
	Get a pointer to the current frame. More...
uint64_t	FutureFramesAvailable () const override
	Return the number of frames ahead of the current frame. More...
uint64_t	AdvanceFrames (uint64_t frameCount) override
	Seek ahead the specified number of frames. More...
uint64_t	PastFramesAvailable () const override
	Return the number of frames behind the current frame.
uint64_t	RewindFrames (uint64_t frameCount) override
	Seek backwards the specified number of frames. More...
uint64_t	GetFrameCounter () const override
	Get the total number of frames played until the current frame. More...
void	SetFrameCounter (uint64_t frameCount) override
	Set the total number of frames played until the current frame. More...

Member Function Documentation

AdvanceFrames()

uint64_t KODI::RETRO::CBasicMemoryStream::AdvanceFrames ( uint64_t  frameCount )

inlineoverridevirtual

Seek ahead the specified number of frames.

Returns

The number of frames advanced

Implements KODI::RETRO::IMemoryStream.

BeginFrame()

uint8_t * CBasicMemoryStream::BeginFrame ( )

overridevirtual

\ brief Get a pointer to which FrameSize() bytes can be written

The buffer exposed by this function is passed to the game client, which fills it with a serialization of its current state.

Implements KODI::RETRO::IMemoryStream.

CurrentFrame()

const uint8_t * CBasicMemoryStream::CurrentFrame ( ) const

overridevirtual

Get a pointer to the current frame.

This function must have no side effects. The pointer is valid until the stream is modified.

Returns

A buffer of size FrameSize(), or nullptr if the stream is empty

Implements KODI::RETRO::IMemoryStream.

FutureFramesAvailable()

uint64_t KODI::RETRO::CBasicMemoryStream::FutureFramesAvailable ( ) const

inlineoverridevirtual

Return the number of frames ahead of the current frame.

If the stream supports forward seeking, frames that are passed over during a "rewind" operation can be recovered again.

Implements KODI::RETRO::IMemoryStream.

GetFrameCounter()

uint64_t KODI::RETRO::CBasicMemoryStream::GetFrameCounter ( ) const

inlineoverridevirtual

Get the total number of frames played until the current frame.

Returns

The history of the current frame, or 0 for unknown

Implements KODI::RETRO::IMemoryStream.

Init()

void CBasicMemoryStream::Init ( size_t  frameSize, uint64_t  maxFrameCount  )

overridevirtual

Initialize memory stream.

Parameters

frameSize	The size of the serialized memory state
maxFrameCount	The maximum number of frames this stream can hold

Implements KODI::RETRO::IMemoryStream.

RewindFrames()

uint64_t KODI::RETRO::CBasicMemoryStream::RewindFrames ( uint64_t  frameCount )

inlineoverridevirtual

Seek backwards the specified number of frames.

Returns

The number of frames rewound

Implements KODI::RETRO::IMemoryStream.

SetFrameCounter()

void KODI::RETRO::CBasicMemoryStream::SetFrameCounter ( uint64_t  frameCount )

inlineoverridevirtual

Set the total number of frames played until the current frame.

Parameters

frameCount

The history of the current frame

Implements KODI::RETRO::IMemoryStream.

SetMaxFrameCount()

void KODI::RETRO::CBasicMemoryStream::SetMaxFrameCount ( uint64_t  maxFrameCount )

inlineoverridevirtual

Update the max frame count.

Old frames may be deleted if the max frame count is reduced.

Implements KODI::RETRO::IMemoryStream.

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The documentation for this class was generated from the following files:

• xbmc/cores/RetroPlayer/streams/memory/BasicMemoryStream.h
• xbmc/cores/RetroPlayer/streams/memory/BasicMemoryStream.cpp