#include <surfacesdl-graphics.h>

Inheritance diagram for SurfaceSdlGraphicsManager:

Classes
class	AspectRatio

struct	MousePos

struct	TransactionDetails

struct	VideoState

Public Member Functions
	SurfaceSdlGraphicsManager (SdlEventSource sdlEventSource, SdlWindow window)

bool	hasFeature (OSystem::Feature f) const override

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

bool	getFeatureState (OSystem::Feature f) const override

const OSystem::GraphicsMode *	getSupportedGraphicsModes () const override

int	getDefaultGraphicsMode () const override

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

int	getGraphicsMode () const override

uint	getDefaultScaler () const override

uint	getDefaultScaleFactor () const override

bool	setScaler (uint mode, int factor) override

uint	getScaler () const override

uint	getScaleFactor () const override

void	initSize (uint w, uint h, const Graphics::PixelFormat *format=NULL) override

int	getScreenChangeID () const override

void	beginGFXTransaction () override

OSystem::TransactionError	endGFXTransaction () override

int16	getHeight () const override

int16	getWidth () const override

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

Graphics::Surface *	lockScreen () override

void	unlockScreen () override

void	fillScreen (uint32 col) override

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

void	updateScreen () override

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

void	clearFocusRectangle () override

Graphics::PixelFormat	getOverlayFormat () const override

void	clearOverlay () 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 () const override

int16	getOverlayWidth () const override

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

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

bool	notifyEvent (const Common::Event &event) override

void	notifyVideoExpose () override

void	notifyResize (const int width, const int height) override

Public Member Functions inherited from SdlGraphicsManager
	SdlGraphicsManager (SdlEventSource source, SdlWindow window)

virtual void	activateManager ()

virtual void	deactivateManager ()

virtual bool	notifyMousePosition (Common::Point &mouse)

virtual bool	showMouse (bool visible) override

bool	lockMouse (bool lock) override

void	saveScreenshot () override

State	getState () const

bool	setState (const State &state)

SdlWindow *	getWindow () const

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

Common::Keymap *	getKeymap ()

Public Member Functions inherited from WindowedGraphicsManager
void	showOverlay (bool inGUI) override

void	hideOverlay () override

bool	isOverlayVisible () const override

void	setShakePos (int shakeXOffset, int shakeYOffset) override

int	getWindowWidth () const

int	getWindowHeight () const

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 float	getHiDPIScreenFactor () const

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

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

Public Member Functions inherited from Common::EventObserver
virtual void	notifyPoll ()

Protected Types
enum	{ kTransactionNone = 0, kTransactionActive = 1, kTransactionRollback = 2 }

enum	{ NUM_DIRTY_RECT = 100, MAX_SCALING = 3 }

Protected Types inherited from SdlGraphicsManager
enum	CustomEventAction { kActionToggleFullscreen = 100, kActionToggleMouseCapture, kActionSaveScreenshot, kActionToggleAspectRatioCorrection, kActionToggleFilteredScaling, kActionCycleStretchMode, kActionIncreaseScaleFactor, kActionDecreaseScaleFactor, kActionNextScaleFilter, kActionPreviousScaleFilter }

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

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

virtual void	initGraphicsSurface ()

Graphics::PixelFormat	convertSDLPixelFormat (SDL_PixelFormat *in) const

bool	gameNeedsAspectRatioCorrection () const override

int	getGameRenderScale () const override

void	handleResizeImpl (const int width, const int height) override

virtual void	setupHardwareSize ()

void	fixupResolutionForAspectRatio (AspectRatio desiredAspectRatio, int &width, int &height) const

virtual void	addDirtyRect (int x, int y, int w, int h, bool inOverlay, bool realCoordinates=false)

virtual void	drawMouse ()

virtual void	undrawMouse ()

virtual void	blitCursor ()

virtual void	internUpdateScreen ()

virtual void	updateScreen (SDL_Rect *dirtyRectList, int actualDirtyRects)

virtual bool	loadGFXMode ()

virtual void	unloadGFXMode ()

virtual bool	hotswapGFXMode ()

virtual void	setAspectRatioCorrection (bool enable)

void	setFilteringMode (bool enable)

void	setVSync (bool enable)

bool	saveScreenshot (const Common::Path &filename) const override

virtual void	setGraphicsModeIntern ()

virtual void	getDefaultResolution (uint &w, uint &h)

Protected Member Functions inherited from SdlGraphicsManager
Common::Rect	getPreferredFullscreenResolution ()

bool	defaultGraphicsModeConfig () const

void	getWindowSizeFromSdl (int width, int height) const

virtual void	showSystemMouseCursor (bool visible)

void	setSystemMousePosition (const int x, const int y) override

void	notifyActiveAreaChanged () override

Protected Member Functions inherited from WindowedGraphicsManager
Common::Point	convertVirtualToWindow (const int x, const int y) const

Common::Point	convertWindowToVirtual (int x, int y) const

frac_t	getDesiredGameAspectRatio () const

void	handleResize (const int width, const int height)

virtual void	recalculateDisplayAreas ()

bool	showMouse (bool visible) override

void	warpMouse (int x, int y) override

void	setMousePosition (int x, int y)

Static Protected Member Functions
static AspectRatio	getDesiredAspectRatio ()

Protected Attributes
SDL_Surface *	_screen

Graphics::PixelFormat	_screenFormat

Graphics::PixelFormat	_cursorFormat

SDL_Surface *	_tmpscreen

SDL_Surface *	_tmpscreen2

SDL_Surface *	_overlayscreen

bool	_useOldSrc

Graphics::PixelFormat	_overlayFormat

bool	_isDoubleBuf

bool	_isHwPalette

TransactionDetails	_transactionDetails

VideoState	_videoMode

VideoState	_oldVideoMode

int	_transactionMode

bool	_displayDisabled

const PluginList &	_scalerPlugins

ScalerPluginObject *	_scalerPlugin

Scaler *	_scaler

Scaler *	_mouseScaler

uint	_maxExtraPixels

uint	_extraPixels

bool	_screenIsLocked

Graphics::Surface	_framebuffer

int	_screenChangeCount

SDL_Rect	_dirtyRectList [2 *NUM_DIRTY_RECT]

int	_numDirtyRects

SDL_Rect	_prevDirtyRectList [NUM_DIRTY_RECT]

int	_numPrevDirtyRects

SDL_Rect	_mouseLastRect

SDL_Rect	_mouseNextRect

MousePos	_mouseCurState

byte	_mouseKeyColor

byte	_mappedMouseKeyColor

bool	_cursorDontScale

bool	_cursorPaletteDisabled

SDL_Surface *	_mouseOrigSurface

SDL_Surface *	_mouseSurface

int	_currentShakeXOffset

int	_currentShakeYOffset

SDL_Color *	_currentPalette

uint	_paletteDirtyStart

uint	_paletteDirtyEnd

SDL_Color *	_overlayPalette

bool	_isInOverlayPalette

SDL_Color *	_cursorPalette

Common::Mutex	_graphicsMutex

bool	_enableFocusRectDebugCode

bool	_enableFocusRect

Common::Rect	_focusRect

Protected Attributes inherited from SdlGraphicsManager
SDL_Surface *	_hwScreen

SdlEventSource *	_eventSource

SdlWindow *	_window

Protected Attributes inherited from WindowedGraphicsManager
int	_windowWidth

int	_windowHeight

int	_screenAlign

bool	_overlayVisible

bool	_overlayInGUI

int	_gameScreenShakeXOffset

int	_gameScreenShakeYOffset

Common::Rect	_gameDrawRect

Common::Rect	_overlayDrawRect

DisplayArea	_activeArea

bool	_forceRedraw

bool	_cursorVisible

bool	_cursorNeedsRedraw

bool	_cursorLastInActiveArea

int	_cursorX

int	_cursorY

Detailed Description

SDL graphics manager

Member Function Documentation

◆ setPalette()

void SurfaceSdlGraphicsManager::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 SurfaceSdlGraphicsManager::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.

◆ convertSDLPixelFormat()

Graphics::PixelFormat SurfaceSdlGraphicsManager::convertSDLPixelFormat ( SDL_PixelFormat * in ) const

protected

Convert from the SDL pixel format to Graphics::PixelFormat

Parameters

in	The SDL pixel format to convert
out	A pixel format to be written to

◆ notifyEvent()

bool SurfaceSdlGraphicsManager::notifyEvent ( const Common::Event & event )

overridevirtual

Notify the observer of an incoming event.

An observer is supposed to 'eat' the event, with returning true, when it wants to prevent other observers from receiving the event. A usage example here is the keymapper: If it processes an Event, it should 'eat' it and create a new event, which the EventDispatcher will then catch.

Parameters

event The event that is incoming.

Return values

true	If the event should not be passed to other observers, false otherwise.

Reimplemented from SdlGraphicsManager.

◆ notifyVideoExpose()

void SurfaceSdlGraphicsManager::notifyVideoExpose ( )

overridevirtual

Notify the graphics manager that the graphics needs to be redrawn, since the application window was modified.

This is basically called when SDL_VIDEOEXPOSE was received.

Implements SdlGraphicsManager.

◆ notifyResize()

void SurfaceSdlGraphicsManager::notifyResize	(	const int	width,
		const int	height
	)

overridevirtual

Notify the graphics manager about a resize event.

It is noteworthy that the requested width/height should actually be set up as is and not changed by the graphics manager, since otherwise it may lead to odd behavior for certain window managers.

It is only required to overwrite this method in case you want a resizable window. The default implementation just does nothing.

Parameters

width	Requested window width.
height	Requested window height.

Reimplemented from SdlGraphicsManager.

◆ gameNeedsAspectRatioCorrection()

bool SurfaceSdlGraphicsManager::gameNeedsAspectRatioCorrection ( ) const

inlineoverrideprotectedvirtual

Returns: whether or not the game screen must have aspect ratio correction applied for correct rendering.

Implements WindowedGraphicsManager.

◆ getGameRenderScale()

int SurfaceSdlGraphicsManager::getGameRenderScale ( ) const

inlineoverrideprotectedvirtual

Returns: the scale used between the game size and the surface on which it is rendered.

Reimplemented from WindowedGraphicsManager.

◆ handleResizeImpl()

void SurfaceSdlGraphicsManager::handleResizeImpl	(	const int	width,
		const int	height
	)

overrideprotectedvirtual

Backend-specific implementation for updating internal surfaces that need to reflect the new window size.

Reimplemented from SdlGraphicsManager.

Member Data Documentation

◆ _screen

SDL_Surface* SurfaceSdlGraphicsManager::_screen

protected

Unseen game screen

◆ _tmpscreen

SDL_Surface* SurfaceSdlGraphicsManager::_tmpscreen

protected

Temporary screen (for scalers)

◆ _tmpscreen2

SDL_Surface* SurfaceSdlGraphicsManager::_tmpscreen2

protected

Temporary screen (for scalers)

◆ _graphicsMutex

Common::Mutex SurfaceSdlGraphicsManager::_graphicsMutex

protected

Mutex which prevents multiple threads from interfering with each other when accessing the screen.

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

backends/graphics/surfacesdl/surfacesdl-graphics.h

Classes

Public Member Functions

Protected Types

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation

◆ setPalette()

◆ grabPalette()

◆ convertSDLPixelFormat()

◆ notifyEvent()

◆ notifyVideoExpose()

◆ notifyResize()

◆ gameNeedsAspectRatioCorrection()

◆ getGameRenderScale()

◆ handleResizeImpl()

Member Data Documentation

◆ _screen

◆ _tmpscreen

◆ _tmpscreen2

◆ _graphicsMutex