This class represents a frame that is the (per-pixel) alpha-blend of two other frames. More...

#include <SuperImposedFrame.hh>

Inheritance diagram for openmsx::SuperImposedFrame:

Collaboration diagram for openmsx::SuperImposedFrame:

Public Member Functions
void	init (const FrameSource top, const FrameSource bottom)

virtual	~SuperImposedFrame ()=default

Public Member Functions inherited from openmsx::FrameSource
void	init (FieldType fieldType_)
	(Re)initialize an existing FrameSource. More...

FieldType	getField () const
	Gets the role this frame plays in interlacing. More...

unsigned	getHeight () const
	Gets the number of lines in this frame. More...

virtual unsigned	getLineWidth (unsigned line) const =0
	Gets the number of display pixels on the given line. More...

unsigned	getWidth () const
	Get the width of (all) lines in this frame. More...

template<std::unsigned_integral Pixel>
Pixel	getLineColor (unsigned line) const
	Get the (single) color of the given line. More...

template<std::unsigned_integral Pixel>
std::span< const Pixel >	getLine (int line, std::span< Pixel > buf) const
	Gets a pointer to the pixels of the given line number. More...

virtual const void *	getLineInfo (unsigned line, unsigned &lineWidth, void *buf, unsigned bufWidth) const =0
	Abstract implementation of getLinePtr(). More...

template<std::unsigned_integral Pixel>
std::span< const Pixel, 320 >	getLinePtr320_240 (unsigned line, std::span< Pixel, 320 > buf) const
	Get a pointer to a given line in this frame, the frame is scaled to 320x240 pixels. More...

template<std::unsigned_integral Pixel>
std::span< const Pixel, 640 >	getLinePtr640_480 (unsigned line, std::span< Pixel, 640 > buf) const
	Get a pointer to a given line in this frame, the frame is scaled to 640x480 pixels. More...

template<std::unsigned_integral Pixel>
std::span< const Pixel, 960 >	getLinePtr960_720 (unsigned line, std::span< Pixel, 960 > buf) const
	Get a pointer to a given line in this frame, the frame is scaled to 960x720 pixels. More...

const PixelFormat &	getPixelFormat () const

Static Public Member Functions
static std::unique_ptr< SuperImposedFrame >	create (const PixelFormat &format)

Protected Member Functions
	SuperImposedFrame (const PixelFormat &format)

Protected Member Functions inherited from openmsx::FrameSource
	FrameSource (const PixelFormat &format)

	~FrameSource ()=default

void	setHeight (unsigned height_)

virtual bool	hasContiguousStorage () const
	Returns true when two consecutive rows are also consecutive in memory. More...

template<std::unsigned_integral Pixel>
void	scaleLine (std::span< const Pixel > in, std::span< Pixel > out) const

Protected Attributes
const FrameSource *	top

const FrameSource *	bottom

Additional Inherited Members
Public Types inherited from openmsx::FrameSource
enum	FieldType { FIELD_NONINTERLACED , FIELD_EVEN , FIELD_ODD }
	What role does this frame play in interlacing? More...

Detailed Description

This class represents a frame that is the (per-pixel) alpha-blend of two other frames.

When the two input frames have a different resolution. The result will have the highest resolution of the two inputs (in other words, the lower resolution frame gets upscaled to the higher resolution).

Definition at line 14 of file SuperImposedFrame.hh.

Constructor & Destructor Documentation

◆ ~SuperImposedFrame()

virtual openmsx::SuperImposedFrame::~SuperImposedFrame ( )

virtualdefault

◆ SuperImposedFrame()

openmsx::SuperImposedFrame::SuperImposedFrame ( const PixelFormat & format )

explicitprotected

Definition at line 48 of file SuperImposedFrame.cc.

References openmsx::DiskImageUtils::format().

Member Function Documentation

◆ create()

std::unique_ptr< SuperImposedFrame > openmsx::SuperImposedFrame::create ( const PixelFormat & format )

static

Definition at line 32 of file SuperImposedFrame.cc.

References openmsx::DiskImageUtils::format(), and UNREACHABLE.

Referenced by openmsx::PostProcessor::PostProcessor().

◆ init()

void openmsx::SuperImposedFrame::init	(	const FrameSource *	top,
		const FrameSource *	bottom
	)

Definition at line 53 of file SuperImposedFrame.cc.

References bottom, openmsx::FrameSource::getHeight(), gl::max(), openmsx::FrameSource::setHeight(), and top.

Member Data Documentation

◆ bottom

const FrameSource* openmsx::SuperImposedFrame::bottom

protected

Definition at line 27 of file SuperImposedFrame.hh.

Referenced by init().

◆ top

const FrameSource* openmsx::SuperImposedFrame::top

protected

Definition at line 26 of file SuperImposedFrame.hh.

Referenced by init().

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

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members