Inheritance diagram for LibretroGraphics:

Public Member Functions
Common::List< Graphics::PixelFormat >	getSupportedFormats () const override

const OSystem::GraphicsMode *	getSupportedGraphicsModes (void) const override

void	initSize (uint width, uint height, const Graphics::PixelFormat *format) override

int16	getHeight (void) const override

int16	getWidth (void) const override

Graphics::PixelFormat	getScreenFormat (void) const override

void	copyRectToScreen (const void *buf, int pitch, int x, int y, int w, int h) override

void	updateScreen (void) override

void	showOverlay (bool inGUI) override

void	hideOverlay (void) override

void	clearOverlay (void) override

void	grabOverlay (Graphics::Surface &surface) const override

void	copyRectToOverlay (const void *buf, int pitch, int x, int y, int w, int h) override

int16	getOverlayHeight (void) const override

int16	getOverlayWidth (void) const override

Graphics::PixelFormat	getOverlayFormat () const override

const Graphics::Surface *	getScreen (void)

bool	showMouse (bool visible) override

void	warpMouse (int x, int y) override

void	setMouseCursor (const void buf, uint w, uint h, int hotspotX, int hotspotY, uint32 keycolor=255, bool dontScale=false, const Graphics::PixelFormat format=NULL, const byte *mask=nullptr) override

void	setCursorPalette (const byte *colors, uint start, uint num) override

bool	isOverlayInGUI (void)

bool	hasFeature (OSystem::Feature f) const override

void	setFeatureState (OSystem::Feature f, bool enable) override

bool	getFeatureState (OSystem::Feature f) const override

int	getDefaultGraphicsMode () const override

bool	isOverlayVisible () const override

bool	setGraphicsMode (int mode, uint flags=OSystem::kGfxModeNoFlags) override

int	getGraphicsMode () const override

Graphics::Surface *	lockScreen () override

void	unlockScreen () override

void	setShakePos (int shakeXOffset, int shakeYOffset) override

int	getScreenChangeID () const override

void	beginGFXTransaction () override

OSystem::TransactionError	endGFXTransaction () override

void	fillScreen (uint32 col) override

void	fillScreen (const Common::Rect &r, uint32 col) override

void	setFocusRectangle (const Common::Rect &rect) override

void	clearFocusRectangle () override

void	realUpdateScreen (void)

Public Member Functions inherited from GraphicsManager
virtual bool	setShader (const Common::Path &fileName)

virtual const OSystem::GraphicsMode *	getSupportedStretchModes () const

virtual int	getDefaultStretchMode () const

virtual bool	setStretchMode (int mode)

virtual int	getStretchMode () const

virtual uint	getDefaultScaler () const

virtual uint	getDefaultScaleFactor () const

virtual bool	setScaler (uint mode, int factor)

virtual uint	getScaler () const

virtual uint	getScaleFactor () const

virtual void	initSizeHint (const Graphics::ModeList &modes)

virtual float	getHiDPIScreenFactor () const

virtual void	displayMessageOnOSD (const Common::U32String &msg)

virtual void	displayActivityIconOnOSD (const Graphics::Surface *icon)

virtual void	saveScreenshot ()

virtual bool	lockMouse (bool lock)

Public Attributes
Graphics::Surface	_screen

Graphics::Surface	_gameScreen

Graphics::Surface	_overlay

Graphics::Surface	_mouseImage

LibretroPalette	_mousePalette

LibretroPalette	_gamePalette

Protected Member Functions
void	setPalette (const byte *colors, uint start, uint num) override

void	grabPalette (byte *colors, uint start, uint num) const override

Member Function Documentation

◆ setPalette()

void LibretroGraphics::setPalette	(	const byte *	colors,
		uint	start,
		uint	num
	)

overrideprotectedvirtual

Replace the specified range of the palette with new colors. The palette entries from 'start' till (start+num-1) will be replaced - so a full palette update is accomplished via start=0, num=256.

The palette data is specified in interleaved RGB format. That is, the first byte of the memory block 'colors' points at is the red component of the first new color; the second byte the green component of the first new color; the third byte the blue component, the last byte to the alpha (transparency) value. Then the second color starts, and so on. So memory looks like this: R1-G1-B1-R2-G2-B2-R3-...

Parameters

colors	the new palette data, in interleaved RGB format
start	the first palette entry to be updated
num	the number of palette entries to be updated

Note: It is an error if start+num exceeds 256, behavior is undefined in that case (the backend may ignore it silently or assert).; It is an error if this function gets called when the pixel format in use (the return value of getScreenFormat) has more than one byte per pixel.

See also: getScreenFormat

Implements GraphicsManager.

◆ grabPalette()

void LibretroGraphics::grabPalette	(	byte *	colors,
		uint	start,
		uint	num
	)		const

overrideprotectedvirtual

Grabs a specified part of the currently active palette. The format is the same as for setPalette.

This should return exactly the same RGB data as was setup via previous setPalette calls.

For example, for every valid value of start and num of the following code:

byte origPal[num*3]; // Setup origPal's data however you like g_system->setPalette(origPal, start, num); byte obtainedPal[num*3]; g_system->grabPalette(obtainedPal, start, num);

the following should be true:

memcmp(origPal, obtainedPal, num*3) == 0

See also: setPalette

Parameters

colors	the palette data, in interleaved RGB format
start	the first platte entry to be read
num	the number of palette entries to be read

Note: It is an error if this function gets called when the pixel format in use (the return value of getScreenFormat) has more than one byte per pixel.

See also: getScreenFormat

Implements GraphicsManager.

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

backends/platform/libretro/include/libretro-graphics.h

Public Member Functions

Public Attributes

Protected Member Functions

Member Function Documentation

◆ setPalette()

◆ grabPalette()