Class NativeCPUVisionBackend

java.lang.Object

org.episteme.nativ.media.vision.backends.NativeCPUVisionBackend

All Implemented Interfaces:

VisionAlgorithmProvider<BufferedImage>, VisionBackend, AlgorithmProvider, Backend, ComputeBackend, CPUBackend, NativeBackend

@AutoService({Backend.class,ComputeBackend.class,VisionBackend.class,CPUBackend.class,NativeBackend.class})
public class NativeCPUVisionBackend
extends Object
implements VisionBackend, CPUBackend, NativeBackend

Native CPU Vision Backend using Project Panama (FFM API).

This backend delegates operations to the 'episteme_vision' native library. Implements CPUBackend and NativeBackend.

Since:

1.2

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

Constructor Summary

Constructors

Constructor	Description
NativeCPUVisionBackend()

Method Summary

Modifier and Type	Method	Description
BufferedImage	apply(BufferedImage image, ImageOp<BufferedImage> op)	Applies a generic operation to an image.
ExecutionContext	createContext()	Creates an execution context for running operations.
BufferedImage	createImage(Object data, int width, int height)	Creates a new image from the given data.
HardwareAccelerator	getAcceleratorType()	Returns the type of hardware accelerator used by this backend.
String	getBackendName()	Returns the friendly name of this backend instance.
String	getDescription()	Returns a description of the backend.
String	getId()	Returns the unique identifier for this backend (e.g., "javafx", "jmol", "cuda").
String	getName()	Returns the display name for UI presentation.
String	getNativeLibraryName()	Returns the name of the native library this backend depends on.
String	getType()	Returns the backend type category (e.g., "plotting", "molecular", "tensor", "math").
boolean	isAvailable()	Checks if this backend is currently available (libraries loaded, etc.).
boolean	isLoaded()	Checks if the native library is loaded and available.
BufferedImage	processNative(BufferedImage image, int opCode)
void	shutdown()	Called when the application is shutting down or the backend is being replaced.

Methods inherited from class Object

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

Methods inherited from interface AlgorithmProvider

description, getMetadata, score

Methods inherited from interface Backend

getAlgorithmProviders, getStatusMessage, isExplicitlyDisabled

Methods inherited from interface CPUBackend

supportsComplexNumbers, supportsFloatingPoint, supportsParallelOps

Methods inherited from interface VisionAlgorithmProvider

getAlgorithmType

Methods inherited from interface VisionBackend

createBackend, getPriority

Constructor Details

NativeCPUVisionBackend

public NativeCPUVisionBackend()

Method Details

isLoaded

public boolean isLoaded()

Description copied from interface: NativeBackend

Checks if the native library is loaded and available.

Specified by:

isLoaded in interface NativeBackend

Returns:

true if the native library has been successfully loaded

getNativeLibraryName

public String getNativeLibraryName()

Description copied from interface: NativeBackend

Returns the name of the native library this backend depends on.

Specified by:

getNativeLibraryName in interface NativeBackend

Returns:

library name (e.g., "openblas", "cuda", "fftw3")

getType

public String getType()

Description copied from interface: Backend

Returns the backend type category (e.g., "plotting", "molecular", "tensor", "math").

Specified by:

getType in interface Backend

Specified by:

getType in interface ComputeBackend

Specified by:

getType in interface CPUBackend

Specified by:

getType in interface VisionBackend

getId

public String getId()

Description copied from interface: Backend

Returns the unique identifier for this backend (e.g., "javafx", "jmol", "cuda").

Specified by:

getId in interface Backend

Specified by:

getId in interface ComputeBackend

Specified by:

getId in interface VisionBackend

getBackendName

public String getBackendName()

Description copied from interface: VisionBackend

Returns the friendly name of this backend instance.

Specified by:

getBackendName in interface VisionBackend

getName

public String getName()

Description copied from interface: Backend

Returns the display name for UI presentation.

Specified by:

getName in interface AlgorithmProvider

Specified by:

getName in interface Backend

Specified by:

getName in interface VisionAlgorithmProvider<BufferedImage>

Specified by:

getName in interface VisionBackend

getDescription

public String getDescription()

Description copied from interface: Backend

Returns a description of the backend.

Specified by:

getDescription in interface Backend

Specified by:

getDescription in interface ComputeBackend

Specified by:

getDescription in interface VisionBackend

isAvailable

public boolean isAvailable()

Description copied from interface: Backend

Checks if this backend is currently available (libraries loaded, etc.).

Default implementation checks Backend.isExplicitlyDisabled() and returns false if it is.

Specified by:

isAvailable in interface AlgorithmProvider

Specified by:

isAvailable in interface Backend

Specified by:

isAvailable in interface VisionBackend

shutdown

public void shutdown()

Description copied from interface: Backend

Called when the application is shutting down or the backend is being replaced. Use this to release hardware resources, close file handles, or stop background threads.

Specified by:

shutdown in interface AlgorithmProvider

Specified by:

shutdown in interface Backend

Specified by:

shutdown in interface VisionBackend

apply

public BufferedImage apply(BufferedImage image,
 ImageOp<BufferedImage> op)

Description copied from interface: VisionAlgorithmProvider

Applies a generic operation to an image.

Specified by:

apply in interface VisionAlgorithmProvider<BufferedImage>

processNative

public BufferedImage processNative(BufferedImage image,
 int opCode)

createImage

public BufferedImage createImage(Object data,
 int width,
 int height)

Description copied from interface: VisionAlgorithmProvider

Creates a new image from the given data.

Specified by:

createImage in interface VisionAlgorithmProvider<BufferedImage>

createContext

public ExecutionContext createContext()

Description copied from interface: ComputeBackend

Creates an execution context for running operations.

The context should be used within a try-with-resources block to ensure proper cleanup of resources.

Specified by:

createContext in interface ComputeBackend

Specified by:

createContext in interface VisionBackend

Returns:

new execution context

getAcceleratorType

public HardwareAccelerator getAcceleratorType()

Description copied from interface: ComputeBackend

Returns the type of hardware accelerator used by this backend.

Specified by:

getAcceleratorType in interface ComputeBackend

Specified by:

getAcceleratorType in interface CPUBackend

Specified by:

getAcceleratorType in interface VisionBackend

Returns:

the accelerator type