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sun.java2d.xr

public final Class MaskTileManager

Class Inheritance

extends Object

java.lang.Object
sun.java2d.xr.MaskTileManager

Imports

java.awt.*, java.util.*

We render non-antialiased geometry (consisting of rectangles) into a mask, which is later used in a composition step. To avoid mask-allocations of large size, MaskTileManager splits geometry larger than MASK_SIZE into several tiles, and stores the geometry in instances of MaskTile.

Author: Clemens Eisserer

Field Summary

Modifier and Type	Field and Description
pack-priv int	allocatedTiles
pack-priv XRBackend	con
pack-priv MaskTile	mainTile
public static final int	MASK_SIZE
pack-priv long	maskGC
pack-priv int	maskPicture
pack-priv int	maskPixmap
pack-priv ArrayList<MaskTile>	tileList
pack-priv XRCompositeManager	xrMgr
pack-priv int	xTiles
pack-priv int	yTiles

Constructor Summary

Access	Constructor and Description
public	MaskTileManager(XRCompositeManager xrMgr, int parentXid)

Method Summary

Modifier and Type	Method and Description
protected void	allocTiles(DirtyRegion maskArea) Allocates enough MaskTile instances, to cover the whole mask area, or resets existing ones.
public void	clearUploadMask(int mask, int w, int h) Clears the area of the mask-pixmap used for uploading aa coverage values.
protected void	compositeSingleTile(XRSurfaceData dst, MaskTile tile, DirtyRegion dirtyArea, boolean maskRequired, int tileStartX, int tileStartY, XRColor maskColor) Renders the rectangles provided to the mask, and does a composition operation with the properties set inXRCompositeManager.
public void	fillMask(XRSurfaceData dst) Transfers the geometry stored (rectangles, lines) to one or more masks, and renders the result to the destination surface.
public MaskTile	getMainTile() Returns: MainTile to which rectangles are added before composition.
private void	limitRectCoords(GrowableRectArray rects, int index) Limits the rect's coordinates to the mask coordinates.
protected void	tileRects() Tiles the stored rectangles, if they are larger than the MASK_SIZE
public int	uploadMask(int w, int h, int maskscan, int maskoff, byte[] mask) Uploads aa geometry generated for maskblit/fill into the mask pixmap.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

allocatedTiles	back to summary
pack-priv int allocatedTiles

con	back to summary
pack-priv XRBackend con

mainTile	back to summary
pack-priv MaskTile mainTile

MASK_SIZE	back to summary
public static final int MASK_SIZE

maskGC	back to summary
pack-priv long maskGC

maskPicture	back to summary
pack-priv int maskPicture

maskPixmap	back to summary
pack-priv int maskPixmap

tileList	back to summary
pack-priv ArrayList<MaskTile> tileList

xrMgr	back to summary
pack-priv XRCompositeManager xrMgr

xTiles	back to summary
pack-priv int xTiles

yTiles	back to summary
pack-priv int yTiles

Constructor Detail

MaskTileManager	back to summary
public MaskTileManager(XRCompositeManager xrMgr, int parentXid)

Method Detail

allocTiles	back to summary
protected void allocTiles(DirtyRegion maskArea) Allocates enough MaskTile instances, to cover the whole mask area, or resets existing ones.

clearUploadMask	back to summary
public void clearUploadMask(int mask, int w, int h) Clears the area of the mask-pixmap used for uploading aa coverage values.

compositeSingleTile	back to summary
protected void compositeSingleTile(XRSurfaceData dst, MaskTile tile, DirtyRegion dirtyArea, boolean maskRequired, int tileStartX, int tileStartY, XRColor maskColor) Renders the rectangles provided to the mask, and does a composition operation with the properties set inXRCompositeManager.

fillMask	back to summary
public void fillMask(XRSurfaceData dst) Transfers the geometry stored (rectangles, lines) to one or more masks, and renders the result to the destination surface.

getMainTile	back to summary
public MaskTile getMainTile() Returns:MaskTile MainTile to which rectangles are added before composition.

limitRectCoords	back to summary
private void limitRectCoords(GrowableRectArray rects, int index) Limits the rect's coordinates to the mask coordinates. The result is used by growDirtyRegion.

tileRects	back to summary
protected void tileRects() Tiles the stored rectangles, if they are larger than the MASK_SIZE

uploadMask	back to summary
public int uploadMask(int w, int h, int maskscan, int maskoff, byte[] mask) Uploads aa geometry generated for maskblit/fill into the mask pixmap.