Inheritance diagram for TSLEGLSurface:

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Detailed Description

Platform interface class for the OpenGL drawing surface using OpenGL ES 2.0 and EGL which does not use EGL directly. In most cases users should use the TSLNativeEGLSurface instead of this class.

This class must be set up as follows:

// User code that creates and activates OpenGL ES 2.0 context in the current thread

TSLEGLSurface *surface = new TSLEGLSurface();
if( !surface->attach() )
{
  // Failed to attach, check TSLThreadedErrorStack.
}
if( surface->requiresDeviceCapabilities() )
{
  surface->setDeviceCapabilities( ... );
}

If the OpenGL context is bound to a double-buffered window, the user is always responsible for performing buffer swaps.

This drawing surface requires graphics hardware that is OpenGL ES 2.0 compliant.

Hardware with support for the following OpenGL extensions is recommended, but not required:

GL_OES_element_index_uint
GL_OES_standard_derivatives

Non-Native Rendering

Non-native rendering is not supported with this drawing surface.

Public Member Functions
	TSLEGLSurface ()

virtual	~TSLEGLSurface ()

bool	attach ()

void	detach (bool contextLost=false)

bool	requiresDisplayMetrics () const

void	setContextCallbacks (TSLEGLContextCallbacks *callbacks)

virtual TSLOpenGLSurface *	caw ()

Public Member Functions inherited from TSLOpenGLSurface
virtual	~TSLOpenGLSurface ()

float	acquireDepthSlice ()

virtual TSLDrawingSurface *	clone (bool copyUserData=false)

double	coordinateCentreX () const

double	coordinateCentreY () const

TSLOpenGLSurface *	createChildSurface ()

float	currentDepthSlice () const

float	depthSliceIncrement () const

void	flushPendingDraws ()

void	enableRealtimeReprojection (const char *name, bool enable)

double	getSwitchRangeForFP64 () const

bool	getLayerStorageStrategy (const char *layerName, TSLOpenGLStorageStrategyEnum &strategy) const

bool	getLayerTransparencyHint (const char *layerName, TSLOpenGLTransparencyHintEnum &hint) const

float	incrementDepthSlice (uint32_t numDrawItems)

const float *	modelViewMatrix () const

const float *	projectionMatrix () const

bool	setAntialiasingMode (TSLOpenGLAntialiasModeEnum mode)

bool	targetFrameBuffer (GLuint fbo)

GLuint	targetFrameBuffer () const

float	setDepthSlice (uint32_t numDrawItems)

bool	setDisplayMetrics (double dpiX, double dpiY, int horizontalSizePixels, int verticalSizePixels)

void	setSwitchRangeForFP64 (double range)

bool	setLayerStorageStrategy (const char *layerName, TSLOpenGLStorageStrategyEnum strategy)

bool	setLayerTransparencyHint (const char *layerName, TSLOpenGLTransparencyHintEnum hint)

void	setRGBABackgroundColour (unsigned char r, unsigned char g, unsigned char b, unsigned char a)

TSLOpenGLStateTracker *	stateTracker ()

void	shaderPreloadEnabled (bool enabled)

bool	shaderPreloadEnabled () const

bool	preloadProjectionShaders (const TSLCoordinateSystem *cs, bool loadfp64Variant)

void	flushLoadedShaders ()

void	rasterProjectionControlPointParameters (unsigned int minPointsPerRaster, unsigned int maxPointsPerRaster, unsigned int gridSizePixels)

void	textRoundingEnabled (bool enabled)

bool	textRoundingEnabled () const

void	textRoundingAmount (unsigned int px)

unsigned int	textRoundingAmount () const

Public Member Functions inherited from TSLDrawingSurface
bool	clearAllRendering ()

bool	clearDynamicColours ()

TSLRasterBuffer *	createRasterBuffer (unsigned int width, unsigned int height, TSLRasterBuffer::Format format, TSLRasterBuffer::FilterMode filterMode=TSLRasterBuffer::Linear)

bool	declutterIsVisible (const char feature_name, double resolution=0.0, const char layer_name=0) const

bool	drawDU (TSLDeviceUnits x1, TSLDeviceUnits y1, TSLDeviceUnits x2, TSLDeviceUnits y2, bool clear, bool updateExtentOnly=false)

bool	drawUU (double x1, double y1, double x2, double y2, bool clear, bool updateExtentOnly=false)

bool	DUToLatLong (TSLDeviceUnits x, TSLDeviceUnits y, double latitude, double longitude, bool local=false, bool boundCheck=true) const

bool	DUToMU (TSLDeviceUnits x1, TSLDeviceUnits y1, double x2, double y2) const

bool	DUToTMC (TSLDeviceUnits x1, TSLDeviceUnits y1, TSLTMC x2, TSLTMC y2) const

bool	DUToUU (TSLDeviceUnits x1, TSLDeviceUnits y1, double x2, double y2) const

TSLEntity *	findEntityDU (TSLDeviceUnits x, TSLDeviceUnits y, TSLDeviceUnits aperture, int depth, const char *feature_name=NULL)

TSLEntity *	findEntityUU (double x, double y, double aperture, int depth, const char *feature_name=NULL)

TSLEntity *	findSelectedEntityDU (TSLDeviceUnits x, TSLDeviceUnits y, TSLDeviceUnits aperture, int depth=-1, bool ignoreMapDataLayers=false)

TSLEntity *	findSelectedEntityUU (double x, double y, double aperture, int depth=-1, bool ignoreMapDataLayers=false)

bool	getColourIndices (int *indices, int num)

TSLDataLayer *	getCoordinateProvidingLayer ()

const TSLDataLayer *	getCoordinateProvidingLayer () const

bool	getDeclutterRange (const char featureName, double innerLimit, double outerLimit, const char dataLayerName=0, const char *detailLayerName=0)

bool	getDeviceCapabilities (int &horizontalSizeMM, int &verticalSizeMM, int &horizontalSizePixels, int &verticalSizePixels) const

bool	getDeviceCapabilities (TSLDeviceCapabilities &capabilities) const

void	getDUExtent (TSLDeviceUnits x1, TSLDeviceUnits y1, TSLDeviceUnits x2, TSLDeviceUnits y2) const

bool	getFillStyleIndices (int *indices, int num)

bool	getFontStyleIndices (int *indices, int num)

bool	getLineStyleIndices (int *indices, int num)

void	getMUExtent (double x1, double y1, double x2, double y2) const

bool	getSymbolStyleIndices (int *indices, int num)

TSLDrawingSurfaceTiledBufferControl *	getTiledBufferController ()

void	getTMCExtent (TSLEnvelope &extent) const

void	getUUExtent (double x1, double y1, double x2, double y2) const

bool	getViewedLatLongRange (double latitude, double longitude, double *range, bool local=false, bool boundCheck=true) const

bool	latLongToDU (double latitude, double longitude, TSLDeviceUnits x, TSLDeviceUnits y, bool local=false) const

bool	latLongToMU (double latitude, double longitude, double x, double y, bool local=false) const

bool	latLongToTMC (double latitude, double longitude, TSLTMC x, TSLTMC y, bool local=false) const

bool	latLongToUU (double latitude, double longitude, double x, double y, bool local=false) const

bool	MUToDU (double x1, double y1, TSLDeviceUnits x2, TSLDeviceUnits y2) const

bool	MUToLatLong (double x, double y, double latitude, double longitude, bool local=false, bool boundCheck=true) const

bool	MUToTMC (double x1, double y1, TSLTMC x2, TSLTMC y2) const

bool	MUToUU (double x1, double y1, double x2, double y2) const

bool	pan (double x1, double y1, bool auto_redraw=true)

bool	pan (double x1, double y1, TSLDeviceUnits xDU, TSLDeviceUnits yDU, bool auto_redraw=true)

TSLMapQuery *	query (const char layerName, TSLTMC x1, TSLTMC y1, TSLTMC x2, TSLTMC y2, int depth=-1, const char feature_name=NULL) const

TSLMapQuery *	query (const char layerName, TSLTMC x1, TSLTMC y1, TSLTMC x2, TSLTMC y2, TSLSelector selector) const

bool	redraw ()

bool	reset (bool auto_redraw=true)

bool	resize (double x1, double y1, double x2, double y2, bool auto_redraw=true, bool keep_aspect=false)

bool	rotate (double angle)

double	rotation () const

bool	setDeclutterRange (const char featureName, double innerLimit, double outerLimit, const char dataLayerName=0, const char *detailLayerName=0)

bool	setDeviceCapabilities (const int horizontalSizeMM=0, const int verticalSizeMM=0, const int horizontalSizePixels=0, const int verticalSizePixels=0)

bool	setDeviceCapabilities (const TSLDeviceCapabilities &capabilities)

void	setRedrawCallback (TSLDrawingSurfaceDrawCallback *callback)

bool	setupDynamicColours (const char *filename)

bool	setViewedLatLongRange (double latitude, double longitude, double range, bool local=false, bool auto_redraw=true, bool keep_aspect=false)

void	TMCperDU (double &xr, double &yr)

double	TMCperUU ()

bool	TMCToDU (TSLTMC x1, TSLTMC y1, TSLDeviceUnits x2, TSLDeviceUnits y2) const

bool	TMCToLatLong (TSLTMC x, TSLTMC y, double latitude, double longitude, bool local=false, bool boundCheck=true) const

bool	TMCToMU (TSLTMC x1, TSLTMC y1, double x2, double y2) const

bool	TMCToUU (TSLTMC x1, TSLTMC y1, double x2, double y2) const

bool	updateEntityExtent (TSLEntity entity, const char layerName)

void	userUnitOrigin (double x_origin, double y_origin)

void	userUnitOrigin (TSLUUEnum origin_enum)

void	userUnits (double factor)

double	userUnits ()

bool	UUToDU (double x1, double y1, TSLDeviceUnits x2, TSLDeviceUnits y2) const

bool	UUToLatLong (double x, double y, double latitude, double longitude, bool local=false, bool boundCheck=true) const

bool	UUToMU (double x1, double y1, double x2, double y2) const

bool	UUToTMC (double x1, double y1, TSLTMC x2, TSLTMC y2) const

bool	wndResize (TSLDeviceUnits x1, TSLDeviceUnits y1, TSLDeviceUnits x2, TSLDeviceUnits y2, bool auto_redraw=true, TSLResizeActionEnum action=TSLResizeActionNone)

bool	zoom (double percent, bool zoom_in, bool auto_redraw=true)

	TSLDrawingSurface ()

virtual	~TSLDrawingSurface ()

void	clearSymbolList ()

void	clearFontList ()

void	clearLineList ()

void	clearFillList ()

bool	removeFillStyle (TSLStyleID style)

bool	removeLineStyle (TSLStyleID style)

bool	removeSymbolStyle (TSLStyleID style)

bool	removeFontStyle (TSLStyleID style)

TSLStyleID	createFontID (const TSLSimpleString &name, TSLFontType meaningOfName, int fontWeight, bool italic=false, bool underline=false, bool antiAliased=false, const unsigned char *memoryBlock=NULL, TSLSize memoryBlockSize=0)

TSLStyleID	createStandardLineID (const unsigned char *pattern, TSLSize patternLength, int initialOffset, TSLLineScalingType scaleType)

TSLStyleID	createSymbolLineID (int symbolID, double size=0.0, TSLDimensionUnits sizeUnits=TSLDimensionUnitsUndefined, float rotation=0.0f, double anchorPointX=0.0, double anchorPointY=0.0, TSLDimensionUnits anchorPointUnits=TSLDimensionUnitsUndefined)

TSLStyleID	createStandardFillID (const unsigned char *pattern=NULL, TSLSize patternSizeInBytes=0, int patternXSize=0, int patternYSize=0)

TSLStyleID	createSymbolFillID (int symbolID, double size=0.0, TSLDimensionUnits sizeUnits=TSLDimensionUnitsUndefined, float rotation=0.0f, double anchorPointX=0.0, double anchorPointY=0.0, TSLDimensionUnits anchorPointUnits=TSLDimensionUnitsUndefined)

TSLStyleID	createSVGSymbolID (const TSLSimpleString &name, const unsigned char *memoryBlock=NULL, TSLSize memoryBlockSize=0)

TSLStyleID	createFontSymbolID (const TSLSimpleString &name, TSLFontType meaningOfName, const unsigned char *memoryBlock=NULL, TSLSize memoryBlockSize=0)

TSLStyleID	createRasterSymbolID (const TSLSimpleString &name, int xorigin, int yorigin, bool scaleable, const unsigned char *memoryBlock=NULL, TSLSize memoryBlockSize=0)

TSLStyleID	createSymbolIDFromSymbol (TSLStyleID symbolID, int numberofColourPairs, const int colourFrom, const int colourTo)

Public Member Functions inherited from TSLDrawingSurfaceBase
bool	addDataLayer (TSLDataLayer data_layer_interface, const char data_id)

bool	addDynamicRenderer (TSLDynamicRenderer renderer, TSLFeatureID featureID=-1, const char layerName=0)

bool	addFeatureRendering (const char *featureName, TSLFeatureID featureID)

void	attach (TSLDeviceContext handle)

void	attach (TSLWindowHandle handle)

void	attach (TSLDrawableHandle handle)

bool	bringInFrontof (const char move_data_layer, const char target_data_layer)

bool	bringToFront (const char *move_data_layer)

bool	clearAllDeclutterData (const char *layer_name=0)

void	clearAllDynamicRenderers ()

bool	clearBackgroundColour ()

bool	clearDeclutterData (const char feature_name, const char layer_name=0)

bool	clearDynamicRenderer (TSLFeatureID featureID=-1, const char *layerName=0)

bool	clearFeatureRendering (const char *featureName, TSLFeatureID featureID)

bool	clearFrame ()

bool	copyDeclutterData (const char src_feature_name, const char dest_feature_name, const char src_layer_name=0, const char dest_layer_name=0)

void	detach ()

void	detachAllDynamicRenderers ()

bool	detachDynamicRenderer (TSLFeatureID featureID=-1, const char *layerName=0)

const char *	featureClass (TSLFeatureID feature_id)

bool	forceLayer (const char data_id, const char detail_layer_name)

bool	getBackgroundColour (TSLStyleID *value)

bool	getColourValue (int colour, unsigned char &r, unsigned char &g, unsigned char &b)

TSLDataLayer *	getDataLayer (const char *data_id)

bool	getDataLayerInfo (int N, TSLDataLayer dataLayer, const char layerName) const

bool	getDataLayerProps (const char data_id, TSLPropertyEnum property_id, TSLPropertyValue old_value)

bool	getDeclutterStatus (const char feature_name, TSLDeclutterStatusResultEnum value, const char dataLayerName=0, const char detailLayerName=0)

bool	getDeclutterStatus (TSLFeatureID feature_id, TSLDeclutterStatusResultEnum value, const char dataLayerName, const char *detailLayerName=0)

TSLDynamicRenderer *	getDynamicRenderer (TSLFeatureID featureID=-1, const char *layerName=0)

bool	getFeatureRendering (const char featureName, TSLFeatureID featureID, TSLRenderingAttributeInt attribute, int result) const

bool	getFeatureRendering (const char featureName, TSLFeatureID featureID, TSLRenderingAttributeDouble attribute, double result) const

bool	getFeatureRendering (const char featureName, TSLFeatureID featureID, TSLRenderingAttributeBool attribute, bool result) const

bool	getFeatureRendering (const char featureName, TSLFeatureID featureID, TSLRenderingAttributes result) const

int	getNumDataLayers () const

bool	getOption (TSLOptionEnum option)

void	id (int id_)

int	id () const

bool	idleProcess ()

bool	loadDeclutter (const char *filename)

bool	loadRendering (const char *filename)

TSLPickResultSet *	pick (TSLDeviceUnits x, TSLDeviceUnits y, TSLDeviceUnits aperture, int depth, TSLPickSelector *selector=0)

TSLPickResultSet *	pick (const char data_id, TSLDeviceUnits x, TSLDeviceUnits y, TSLDeviceUnits aperture, int depth=-1, TSLPickSelector selector=0)

bool	queryActiveLayer (const char data_id, char detail_layer_name, int detail_layer_name_size)

bool	removeDataLayer (const char *data_id)

bool	saveDeclutter (const char *filename, TSLMapLinkVersion ver=TSL_CURRENT_MAPLINK_VERSION)

bool	saveRendering (const char *filename, TSLMapLinkVersion ver=TSL_CURRENT_MAPLINK_VERSION)

bool	sendToBack (const char *move_data_layer)

bool	sendToBackOf (const char move_data_layer, const char target_data_layer)

bool	setBackgroundColour (int value)

bool	setCoordinateProvidingLayer (const char *layer_name)

bool	setDataLayerProps (const char *data_id, TSLPropertyEnum property_id, TSLPropertyValue new_value)

bool	setDeclutterStatus (const char feature_name, TSLDeclutterStatusEnum value, const char dataLayerName=0, const char *detailLayerName=0)

bool	setDeclutterStatus (TSLFeatureID feature_id, TSLDeclutterStatusEnum value, const char dataLayerName=0, const char detailLayerName=0)

bool	setDeclutterStatusOnAllFeatures (TSLDeclutterStatusEnum value, const char dataLayerName=0, const char detailLayerName=0)

bool	setFeatureRendering (const char *featureName, TSLFeatureID featureID, TSLRenderingAttributeInt attribute, int value)

bool	setFeatureRendering (const char *featureName, TSLFeatureID featureID, TSLRenderingAttributeDouble attribute, double value)

bool	setFeatureRendering (const char *featureName, TSLFeatureID featureID, TSLRenderingAttributeBool attribute, bool value)

bool	setFeatureRendering (const char featureName, TSLFeatureID featureID, TSLRenderingAttributes value)

bool	setFrame (int style, int colour, int thickness)

virtual void	setOption (TSLOptionEnum option, bool value)

double	TMCperMU ()

TSLDrawingSurfaceTypeEnum	type () const

void	userWord (void *ptr) const

void *	userWord () const

bool	cloneDynamicRenderersFrom (const TSLDrawingSurfaceBase *otherSurface)

void	addDuplicateLayers (bool value)

virtual	~TSLDrawingSurfaceBase ()

Protected Member Functions
	TSLEGLSurface (bool b)

Protected Member Functions inherited from TSLOpenGLSurface
	TSLOpenGLSurface ()

Protected Member Functions inherited from TSLDrawingSurfaceBase
	TSLDrawingSurfaceBase ()

Additional Inherited Members
Static Public Member Functions inherited from TSLDrawingSurface
static void	cleanup ()

static bool	copy (TSLDrawingSurface copyTo, TSLDrawingSurface copyFrom, bool copyUserData=false)

static TSLStyleID	getIDOfNearestColour (int r, int g, int b)

static bool	loadStandardConfig (const char *path=0, bool delayLoadIncludes=false)

static bool	setupColours (const char *filename)

static bool	setupFillStyles (const char *filename, bool delayLoadIncludes=false)

static bool	setupFonts (const char *filename, bool delayLoadIncludes=false)

static bool	setupLineStyles (const char *filename, bool delayLoadIncludes=false)

static bool	setupSymbols (const char *filename, bool delayLoadIncludes=false)

static void	disableAntiAliasFonts ()

static void	enableAntiAliasFonts ()

Static Public Member Functions inherited from TSLDrawingSurfaceBase
static bool	addLoader (TSLFileLoader *loader)

static bool	addPathList (TSLPathList *path_list)

static bool	findFile (const char *filename, TSLSimpleString &foundPath)

static TSLFileLoader *	getLoader ()

Protected Attributes inherited from TSLDrawingSurfaceBase
void *	m_classID

Constructor & Destructor Documentation

◆ TSLEGLSurface() [1/2]

TSLEGLSurface::TSLEGLSurface ( )

Creates a new drawing surface in a detached state. The attach method must be called from a thread with an active OpenGL ES context before the drawing surface can be used.

◆ ~TSLEGLSurface()

virtual TSLEGLSurface::~TSLEGLSurface ( )

virtual

◆ TSLEGLSurface() [2/2]

TSLEGLSurface::TSLEGLSurface ( bool b )

protected

Member Function Documentation

◆ attach()

bool TSLEGLSurface::attach ( )

Attaches the drawing surface to the OpenGL ES 2.0 context active for the current thread. This method must be called before the drawing surface can be used.

Returns true if the surface was successfully attached, false otherwise.

◆ caw()

virtual TSLOpenGLSurface * TSLEGLSurface::caw ( )

virtual

Reimplemented in TSLNativeEGLSurface.

◆ detach()

void TSLEGLSurface::detach ( bool contextLost = false )

Detaches the drawing surface from the OpenGL ES 2.0 context. This will free any resources used by the drawing surface. The drawing surface cannot be used again until it is attached to a new context using attach().

If the OpenGL context associated with the drawing surface has already been deleted (such as in the case of a context loss event), call this method with the contextLost argument set to true. The drawing surface will not attempt to delete any OpenGL resource handles it has in this case as they will have already been freed when the context was destroyed.

Parameters

contextLost Informs the drawing surface that its OpenGL context has already been destroyed and any OpenGL resource handles it holds are invalid. Note that calling this function with this flag set to true when the OpenGL context has not been deleted or lost will result in resource leaks. The default value is false.

◆ requiresDisplayMetrics()

bool TSLEGLSurface::requiresDisplayMetrics ( ) const

This method should be checked after creating/attaching the drawing surface. If it returns false, the user must call setDeviceCapabilities or setDisplay Metrics with the applicable values for the window the drawing surface is attached to before the first draw is performed.

◆ setContextCallbacks()

void TSLEGLSurface::setContextCallbacks ( TSLEGLContextCallbacks * callbacks )

When the drawing surface is a TSLNativeEGLSurface this method is not used.

When using tiled buffered layers with a TSLEGLSurface an implementation of TSLEGLContextCallbacks must be set on the surface before enabling tiled buffered layers. See TSLOptionTiledBufferedLayers from TSLOptionEnum for more details.