Package icyllis.arc3d.granite

Class ClipStack

java.lang.Object

icyllis.arc3d.granite.ClipStack

public final class ClipStack
extends Object

GPU hierarchical clipping.

We use scissor test and depth test to apply clip, antialiasing only works on multisampled targets.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ClipStack.ClipGeometry
static class	ClipStack.Element

Field Summary

Fields

Modifier and Type	Field	Description
static final int	CLIP_GEOMETRY_A_ONLY
static final int	CLIP_GEOMETRY_B_ONLY
static final int	CLIP_GEOMETRY_BOTH
static final int	CLIP_GEOMETRY_EMPTY
static final int	OP_DIFFERENCE	Clip ops.
static final int	OP_INTERSECT	Clip ops.
static final int	STATE_COMPLEX	Clip states.
static final int	STATE_DEVICE_RECT	Clip states.
static final int	STATE_EMPTY	Clip states.
static final int	STATE_WIDE_OPEN	Clip states.

Constructor Summary

Constructors

Constructor	Description
ClipStack(GraniteDevice device)

Method Summary

Modifier and Type	Method	Description
void	clipRect(@Nullable Matrixc viewMatrix, @NonNull Rect2fc localRect, int clipOp)
int	currentClipState()
@UnmodifiableView Collection<ClipStack.Element>	elements()
static int	getClipGeometry(ClipStack.ClipGeometry A, ClipStack.ClipGeometry B)
void	getConservativeBounds(Rect2f out)
static boolean	intersects(ClipStack.ClipGeometry A, ClipStack.ClipGeometry B)
int	maxDeferredClipDraws()
<GEO> boolean	prepareForDraw(Draw draw, GEO geometry, BiConsumer<GEO,Rect2f> boundsFn, boolean outsetBoundsForAA, List<ClipStack.Element> elementsForMask)
void	recordDeferredClipDraws()
void	restore()
void	save()
int	updateForDraw(Draw draw, List<ClipStack.Element> elementsForMask, BoundsManager boundsManager, int depth)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

OP_DIFFERENCE

public static final int OP_DIFFERENCE

Clip ops.

See Also:

• Constant Field Values

OP_INTERSECT

public static final int OP_INTERSECT

Clip ops.

See Also:

• Constant Field Values

STATE_EMPTY

public static final int STATE_EMPTY

Clip states.

See Also:

• Constant Field Values

STATE_WIDE_OPEN

public static final int STATE_WIDE_OPEN

Clip states.

See Also:

• Constant Field Values

STATE_DEVICE_RECT

public static final int STATE_DEVICE_RECT

Clip states.

See Also:

• Constant Field Values

STATE_COMPLEX

public static final int STATE_COMPLEX

Clip states.

See Also:

• Constant Field Values

CLIP_GEOMETRY_EMPTY

public static final int CLIP_GEOMETRY_EMPTY

See Also:

• Constant Field Values

CLIP_GEOMETRY_A_ONLY

public static final int CLIP_GEOMETRY_A_ONLY

See Also:

• Constant Field Values

CLIP_GEOMETRY_B_ONLY

public static final int CLIP_GEOMETRY_B_ONLY

See Also:

• Constant Field Values

CLIP_GEOMETRY_BOTH

public static final int CLIP_GEOMETRY_BOTH

See Also:

• Constant Field Values

Constructor Details

ClipStack

public ClipStack(GraniteDevice device)

Method Details

currentClipState

public int currentClipState()

save

public void save()

restore

public void restore()

elements

public @UnmodifiableView Collection<ClipStack.Element> elements()

clipRect

public void clipRect(@Nullable Matrixc viewMatrix,
 @NonNull Rect2fc localRect,
 int clipOp)

maxDeferredClipDraws

public int maxDeferredClipDraws()

getConservativeBounds

public void getConservativeBounds(Rect2f out)

prepareForDraw

public <GEO> boolean prepareForDraw(Draw draw,
 GEO geometry,
 BiConsumer<GEO,Rect2f> boundsFn,
 boolean outsetBoundsForAA,
 List<ClipStack.Element> elementsForMask)

updateForDraw

public int updateForDraw(Draw draw,
 List<ClipStack.Element> elementsForMask,
 BoundsManager boundsManager,
 int depth)

recordDeferredClipDraws

public void recordDeferredClipDraws()

intersects

public static boolean intersects(ClipStack.ClipGeometry A,
 ClipStack.ClipGeometry B)

getClipGeometry

public static int getClipGeometry(ClipStack.ClipGeometry A,
 ClipStack.ClipGeometry B)