Generic implementation of a pixel-based Renderer. More...

#include <PixelRenderer.hh>

Inheritance diagram for openmsx::PixelRenderer:

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Collaboration diagram for openmsx::PixelRenderer:

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Public Member Functions
	PixelRenderer (VDP &vdp, Display &display)

	~PixelRenderer () override

PostProcessor *	getPostProcessor () const override
	See VDP::getPostProcessor.

void	reInit () override
	Reinitialize Renderer state.

void	frameStart (EmuTime::param time) override
	Signals the start of a new frame.

void	frameEnd (EmuTime::param time) override
	Signals the end of a frame.

void	updateHorizontalScrollLow (byte scroll, EmuTime::param time) override
	Informs the renderer of a horizontal scroll change: the lower scroll value has changed.

void	updateHorizontalScrollHigh (byte scroll, EmuTime::param time) override
	Informs the renderer of a horizontal scroll change: the higher scroll value has changed.

void	updateBorderMask (bool masked, EmuTime::param time) override
	Informs the renderer of a horizontal scroll change: the border mask has been enabled/disabled.

void	updateMultiPage (bool multiPage, EmuTime::param time) override
	Informs the renderer of a horizontal scroll change: the multi page setting has changed.

void	updateTransparency (bool enabled, EmuTime::param time) override
	Informs the renderer of a VDP transparency enable/disable change.

void	updateSuperimposing (const RawFrame *videoSource, EmuTime::param time) override
	Informs the renderer of a VDP superimposing change.

void	updateForegroundColor (byte color, EmuTime::param time) override
	Informs the renderer of a VDP foreground color change.

void	updateBackgroundColor (byte color, EmuTime::param time) override
	Informs the renderer of a VDP background color change.

void	updateBlinkForegroundColor (byte color, EmuTime::param time) override
	Informs the renderer of a VDP blink foreground color change.

void	updateBlinkBackgroundColor (byte color, EmuTime::param time) override
	Informs the renderer of a VDP blink background color change.

void	updateBlinkState (bool enabled, EmuTime::param time) override
	Informs the renderer of a VDP blinking state change.

void	updatePalette (unsigned index, int grb, EmuTime::param time) override
	Informs the renderer of a VDP palette change.

void	updateVerticalScroll (int scroll, EmuTime::param time) override
	Informs the renderer of a vertical scroll change.

void	updateHorizontalAdjust (int adjust, EmuTime::param time) override
	Informs the renderer of a horizontal adjust change.

void	updateDisplayEnabled (bool enabled, EmuTime::param time) override
	Informs the renderer of a VDP display enabled change.

void	updateDisplayMode (DisplayMode mode, EmuTime::param time) override
	Informs the renderer of a VDP display mode change.

void	updateNameBase (unsigned addr, EmuTime::param time) override
	Informs the renderer of a name table base address change.

void	updatePatternBase (unsigned addr, EmuTime::param time) override
	Informs the renderer of a pattern table base address change.

void	updateColorBase (unsigned addr, EmuTime::param time) override
	Informs the renderer of a color table base address change.

void	updateSpritesEnabled (bool enabled, EmuTime::param time) override
	Informs the renderer of a VDP sprites enabled change.

void	updateVRAM (unsigned offset, EmuTime::param time) override
	Informs the observer of a change in VRAM contents.

void	updateWindow (bool enabled, EmuTime::param time) override
	Informs the observer that the entire VRAM window will change.

Public Member Functions inherited from openmsx::Renderer
virtual	~Renderer ()=default

Additional Inherited Members
Static Public Attributes inherited from openmsx::Renderer
static constexpr std::array< uint16_t, 16 >	GRAPHIC7_SPRITE_PALETTE
	Sprite palette in Graphic 7 mode.

Protected Member Functions inherited from openmsx::Renderer
	Renderer ()=default

Protected Member Functions inherited from openmsx::VRAMObserver
	~VRAMObserver ()=default

Detailed Description

Generic implementation of a pixel-based Renderer.

Uses a Rasterizer to plot actual pixels for a specific video system.

Definition at line 29 of file PixelRenderer.hh.

Constructor & Destructor Documentation

◆ PixelRenderer()

openmsx::PixelRenderer::PixelRenderer	(	VDP &	vdp,
		Display &	display
	)

Definition at line 113 of file PixelRenderer.cc.

References openmsx::Subject< T >::attach(), openmsx::RenderSettings::getMaxFrameSkipSetting(), openmsx::RenderSettings::getMinFrameSkipSetting(), and reInit().

◆ ~PixelRenderer()

openmsx::PixelRenderer::~PixelRenderer ( )

override

Definition at line 136 of file PixelRenderer.cc.

References openmsx::Subject< T >::detach(), openmsx::RenderSettings::getMaxFrameSkipSetting(), and openmsx::RenderSettings::getMinFrameSkipSetting().

Member Function Documentation

◆ frameEnd()

void openmsx::PixelRenderer::frameEnd ( EmuTime::param time )

overridevirtual

Signals the end of a frame.

Parameters

time	The moment in emulated time the frame ends. Note: this is the same time stamp as the start of the next frame.

Implements openmsx::Renderer.

Definition at line 219 of file PixelRenderer.cc.

References openmsx::EventDistributor::distributeEvent(), openmsx::RenderSettings::getDeinterlace(), openmsx::MSXDevice::getMotherBoard(), openmsx::VideoSourceSetting::getSource(), openmsx::Timer::getTime(), openmsx::MSXMotherBoard::isActive(), openmsx::VDP::isEvenOddEnabled(), openmsx::MSXMotherBoard::isFastForwarding(), and openmsx::VDP::isInterlaced().

◆ frameStart()

void openmsx::PixelRenderer::frameStart ( EmuTime::param time )

overridevirtual

Signals the start of a new frame.

The Renderer can use this to get fixed-per-frame settings from the VDP, such as PAL/NTSC timing.

Parameters

time	The moment in emulated time the frame starts.

Implements openmsx::Renderer.

Definition at line 165 of file PixelRenderer.cc.

References openmsx::RenderSettings::getAccuracy(), openmsx::RenderSettings::getDeinterlace(), openmsx::VDP::getEvenOdd(), openmsx::RenderSettings::getMaxFrameSkip(), openmsx::RenderSettings::getMinFrameSkip(), openmsx::SpeedManager::getSpeed(), openmsx::Timer::getTime(), openmsx::VDP::isEvenOddEnabled(), openmsx::VDP::isInterlaced(), openmsx::ThrottleManager::isThrottled(), and openmsx::RealTime::timeLeft().

◆ getPostProcessor()

PostProcessor * openmsx::PixelRenderer::getPostProcessor ( ) const

overridevirtual

See VDP::getPostProcessor.

Implements openmsx::Renderer.

Definition at line 142 of file PixelRenderer.cc.

◆ reInit()

void openmsx::PixelRenderer::reInit ( )

overridevirtual

Reinitialize Renderer state.

Implements openmsx::Renderer.

Definition at line 147 of file PixelRenderer.cc.

References openmsx::VDP::isDisplayEnabled().

Referenced by PixelRenderer().

◆ updateBackgroundColor()

void openmsx::PixelRenderer::updateBackgroundColor	(	byte	color,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a VDP background color change.

Parameters

color	The new background color.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 299 of file PixelRenderer.cc.

◆ updateBlinkBackgroundColor()

void openmsx::PixelRenderer::updateBlinkBackgroundColor	(	byte	color,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a VDP blink background color change.

Parameters

color	The new blink background color.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 312 of file PixelRenderer.cc.

◆ updateBlinkForegroundColor()

void openmsx::PixelRenderer::updateBlinkForegroundColor	(	byte	color,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a VDP blink foreground color change.

Parameters

color	The new blink foreground color.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 306 of file PixelRenderer.cc.

◆ updateBlinkState()

void openmsx::PixelRenderer::updateBlinkState	(	bool	enabled,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a VDP blinking state change.

Parameters

enabled	The new blink state.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 318 of file PixelRenderer.cc.

◆ updateBorderMask()

void openmsx::PixelRenderer::updateBorderMask	(	bool	masked,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a horizontal scroll change: the border mask has been enabled/disabled.

Parameters

masked	true iff enabled.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 266 of file PixelRenderer.cc.

◆ updateColorBase()

void openmsx::PixelRenderer::updateColorBase	(	unsigned	addr,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a color table base address change.

Parameters

addr	The new base address.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 390 of file PixelRenderer.cc.

◆ updateDisplayEnabled()

void openmsx::PixelRenderer::updateDisplayEnabled	(	bool	enabled,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a VDP display enabled change.

Both the regular border start/end and forced blanking by clearing the display enable bit are considered display enabled changes.

Parameters

enabled	The new display enabled state.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 159 of file PixelRenderer.cc.

◆ updateDisplayMode()

void openmsx::PixelRenderer::updateDisplayMode	(	DisplayMode	mode,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a VDP display mode change.

Parameters

mode	The new display mode.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 363 of file PixelRenderer.cc.

References openmsx::DisplayMode::getByte(), openmsx::VDP::getDisplayMode(), openmsx::DisplayMode::GRAPHIC5, and openmsx::DisplayMode::GRAPHIC7.

◆ updateForegroundColor()

void openmsx::PixelRenderer::updateForegroundColor	(	byte	color,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a VDP foreground color change.

Parameters

color	The new foreground color.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 293 of file PixelRenderer.cc.

◆ updateHorizontalAdjust()

void openmsx::PixelRenderer::updateHorizontalAdjust	(	int	adjust,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a horizontal adjust change.

Note that there is no similar method for vertical adjust updates, because vertical adjust is calculated at start of frame and then fixed.

Parameters

adjust	The new adjust value.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 356 of file PixelRenderer.cc.

◆ updateHorizontalScrollHigh()

void openmsx::PixelRenderer::updateHorizontalScrollHigh	(	byte	scroll,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a horizontal scroll change: the higher scroll value has changed.

Parameters

scroll	The new scroll value.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 260 of file PixelRenderer.cc.

◆ updateHorizontalScrollLow()

void openmsx::PixelRenderer::updateHorizontalScrollLow	(	byte	scroll,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a horizontal scroll change: the lower scroll value has changed.

Parameters

scroll	The new scroll value.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 253 of file PixelRenderer.cc.

◆ updateMultiPage()

void openmsx::PixelRenderer::updateMultiPage	(	bool	multiPage,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a horizontal scroll change: the multi page setting has changed.

Parameters

multiPage	The new multi page flag.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 273 of file PixelRenderer.cc.

◆ updateNameBase()

void openmsx::PixelRenderer::updateNameBase	(	unsigned	addr,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a name table base address change.

Parameters

addr	The new base address.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 378 of file PixelRenderer.cc.

◆ updatePalette()

void openmsx::PixelRenderer::updatePalette	(	unsigned	index,
		int	grb,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a VDP palette change.

Parameters

index	The index [0..15] in the palette that changes.
grb	The new definition for the changed palette index: bit 10..8 is green, bit 6..4 is red and bit 2..0 is blue; all other bits are zero.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 328 of file PixelRenderer.cc.

References openmsx::VDP::getBackgroundColor(), openmsx::DisplayMode::getBase(), openmsx::DisplayMode::getByte(), openmsx::VDP::getDisplayMode(), openmsx::DisplayMode::GRAPHIC5, and openmsx::DisplayMode::GRAPHIC7.

◆ updatePatternBase()

void openmsx::PixelRenderer::updatePatternBase	(	unsigned	addr,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a pattern table base address change.

Parameters

addr	The new base address.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 384 of file PixelRenderer.cc.

◆ updateSpritesEnabled()

void openmsx::PixelRenderer::updateSpritesEnabled	(	bool	enabled,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a VDP sprites enabled change.

Parameters

enabled	The new sprites enabled state.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 396 of file PixelRenderer.cc.

◆ updateSuperimposing()

void openmsx::PixelRenderer::updateSuperimposing	(	const RawFrame *	videoSource,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a VDP superimposing change.

Parameters

videoSource	Video that should be superimposed, nullptr if none.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 286 of file PixelRenderer.cc.

◆ updateTransparency()

void openmsx::PixelRenderer::updateTransparency	(	bool	enabled,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a VDP transparency enable/disable change.

Parameters

enabled	The new transparency state.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 279 of file PixelRenderer.cc.

◆ updateVerticalScroll()

void openmsx::PixelRenderer::updateVerticalScroll	(	int	scroll,
		EmuTime::param	time
	)

overridevirtual

Informs the renderer of a vertical scroll change.

Parameters

scroll	The new scroll value.
time	The moment in emulated time this change occurs.

Implements openmsx::Renderer.

Definition at line 350 of file PixelRenderer.cc.

◆ updateVRAM()

void openmsx::PixelRenderer::updateVRAM	(	unsigned	offset,
		EmuTime::param	time
	)

overridevirtual

Informs the observer of a change in VRAM contents.

This update is sent just before the change, so the subcomponent can update itself to the given time based on the old contents.

Parameters

offset	Offset of byte that will change, relative to window base address.
time	The moment in emulated time this change occurs.

Implements openmsx::VRAMObserver.

Definition at line 510 of file PixelRenderer.cc.

◆ updateWindow()

void openmsx::PixelRenderer::updateWindow	(	bool	enabled,
		EmuTime::param	time
	)

overridevirtual

Informs the observer that the entire VRAM window will change.

This update is sent just before the change, so the subcomponent can update itself to the given time based on the old contents. This happens if the base/index masks are changed, or if the window becomes disabled. TODO: Separate enable/disable from window move?

Parameters

enabled	Will the window be enabled after the change? If the observer keeps a cache which is based on VRAM contents, it is only necessary to flush the cache if the new window is enabled, because no reads are allowed from disabled windows.
time	The moment in emulated time this change occurs.

Implements openmsx::VRAMObserver.

Definition at line 519 of file PixelRenderer.cc.

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

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ PixelRenderer()

◆ ~PixelRenderer()

Member Function Documentation

◆ frameEnd()

◆ frameStart()

◆ getPostProcessor()

◆ reInit()

◆ updateBackgroundColor()

◆ updateBlinkBackgroundColor()

◆ updateBlinkForegroundColor()

◆ updateBlinkState()

◆ updateBorderMask()

◆ updateColorBase()

◆ updateDisplayEnabled()

◆ updateDisplayMode()

◆ updateForegroundColor()

◆ updateHorizontalAdjust()

◆ updateHorizontalScrollHigh()

◆ updateHorizontalScrollLow()

◆ updateMultiPage()

◆ updateNameBase()

◆ updatePalette()

◆ updatePatternBase()

◆ updateSpritesEnabled()

◆ updateSuperimposing()

◆ updateTransparency()

◆ updateVerticalScroll()

◆ updateVRAM()

◆ updateWindow()