Package icyllis.arc3d.sketch.shaders

Class ImageShader

java.lang.Object

icyllis.arc3d.core.RefCnt

icyllis.arc3d.sketch.shaders.ImageShader

All Implemented Interfaces:

RefCounted, Shader

public final class ImageShader
extends RefCnt
implements Shader

Field Summary

Fields

Modifier and Type	Field	Description
final @SharedPtr Image	mImage
final SamplingOptions	mSampling
final Rect2f	mSubset
final int	mTileModeX
final int	mTileModeY

Fields inherited from interface icyllis.arc3d.sketch.shaders.Shader

LOCAL_MATRIX_AFTER, LOCAL_MATRIX_BEFORE, LOCAL_MATRIX_REPLACE, TILE_MODE_CLAMP, TILE_MODE_DECAL, TILE_MODE_MIRROR, TILE_MODE_REPEAT

Method Summary

Modifier and Type	Method	Description
protected void	deallocate()	Override this method to invoke de-allocation of the underlying resource.
@RawPtr Image	getImage()
SamplingOptions	getSampling()
Rect2fc	getSubset()
int	getTileModeX()
int	getTileModeY()
boolean	isOpaque()	Returns true if the shader is guaranteed to produce only opaque colors, subject to the Paint using the shader to apply an opaque alpha value.
boolean	isTriviallyCounted()	A return value of true means that its ref/unref is unnecessary, for example, they are just no op.
static @Nullable @SharedPtr Shader	make(@SharedPtr Image image, int tileModeX, int tileModeY, SamplingOptions sampling, @Nullable Matrixc localMatrix)
static float[]	makeCubicMatrix(float B, float C)	Create a 4x4 row major matrix for Mitchell–Netravali filters.
static @Nullable @SharedPtr Shader	makeSubset(@SharedPtr Image image, Rect2fc subset, int tileModeX, int tileModeY, SamplingOptions sampling, @Nullable Matrixc localMatrix)
static @NonNull Rect2f	preparePaintForDrawImageRect(@RawPtr Image image, SamplingOptions sampling, Rect2fc src, Rect2fc dst, boolean strictSubset, Paint paint)

Methods inherited from class icyllis.arc3d.core.RefCnt

create, create, getRefCnt, getRefCntAcquire, getRefCntVolatile, move, move, ref, unique, unref

Methods inherited from class java.lang.Object

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

Methods inherited from interface icyllis.arc3d.sketch.shaders.Shader

makeWithLocalMatrix, ref, unref

Field Details

mImage

@SharedPtr
public final @SharedPtr Image mImage

mSampling

public final SamplingOptions mSampling

mTileModeX

public final int mTileModeX

mTileModeY

public final int mTileModeY

mSubset

public final Rect2f mSubset

Method Details

make

@SharedPtr
public static @Nullable @SharedPtr Shader make(@SharedPtr
 @SharedPtr Image image,
 int tileModeX,
 int tileModeY,
 SamplingOptions sampling,
 @Nullable Matrixc localMatrix)

makeSubset

@SharedPtr
public static @Nullable @SharedPtr Shader makeSubset(@SharedPtr
 @SharedPtr Image image,
 Rect2fc subset,
 int tileModeX,
 int tileModeY,
 SamplingOptions sampling,
 @Nullable Matrixc localMatrix)

deallocate

protected void deallocate()

Description copied from class: RefCnt

Override this method to invoke de-allocation of the underlying resource.

Specified by:

deallocate in class RefCnt

isOpaque

public boolean isOpaque()

Description copied from interface: Shader

Returns true if the shader is guaranteed to produce only opaque colors, subject to the Paint using the shader to apply an opaque alpha value. Subclasses should override this to allow some optimizations.

Specified by:

isOpaque in interface Shader

getImage

@RawPtr
public @RawPtr Image getImage()

getSampling

public SamplingOptions getSampling()

getTileModeX

public int getTileModeX()

getTileModeY

public int getTileModeY()

getSubset

public Rect2fc getSubset()

isTriviallyCounted

public boolean isTriviallyCounted()

Description copied from interface: Shader

A return value of true means that its ref/unref is unnecessary, for example, they are just no op. So callers can perform some optimizations. Subclass can override this method to indicate that an instance is trivially counted. For the same instance, the return value of this method must remain unchanged.

Specified by:

isTriviallyCounted in interface Shader

makeCubicMatrix

public static float[] makeCubicMatrix(float B,
 float C)

Create a 4x4 row major matrix for Mitchell–Netravali filters.

preparePaintForDrawImageRect

public static @NonNull Rect2f preparePaintForDrawImageRect(@RawPtr
 @RawPtr Image image,
 SamplingOptions sampling,
 Rect2fc src,
 Rect2fc dst,
 boolean strictSubset,
 Paint paint)