Package dev.engine_room.flywheel.backend.engine.indirect

Class ObjectStorage

java.lang.Object

dev.engine_room.flywheel.backend.engine.AbstractArena

dev.engine_room.flywheel.backend.engine.indirect.ObjectStorage

public class ObjectStorage
extends AbstractArena

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	ObjectStorage.Mapping	Maps serial object indices to pages, and manages the allocation of pages.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DESCRIPTOR_SIZE_BYTES
final ResizableStorageBuffer	frameDescriptorBuffer	The GPU side buffer containing 32 bit descriptors for each page frame.
static final int	INITIAL_PAGES_ALLOCATED
static final int	INVALID_PAGE
static final int	LOG_2_PAGE_SIZE
final ResizableStorageBuffer	objectBuffer	The GPU side buffer containing all the objects, logically divided into page frames.
static final int	PAGE_MASK
static final int	PAGE_SIZE

Fields inherited from class dev.engine_room.flywheel.backend.engine.AbstractArena

elementSizeBytes

Constructor Summary

Constructors

Constructor	Description
ObjectStorage(long objectSizeBytes)

Method Summary

Modifier and Type	Method	Description
long	byteCapacity()
ObjectStorage.Mapping	createMapping()
void	delete()
void	free(int i)
protected void	grow()
static int	objectIndex2PageIndex(int objectIndex)
static int	pageIndex2ObjectIndex(int pageIndex)
void	uploadDescriptors(StagingBuffer stagingBuffer)

Methods inherited from class dev.engine_room.flywheel.backend.engine.AbstractArena

alloc, byteOffsetOf, capacity, occupancy

Methods inherited from class java.lang.Object

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

Field Details

LOG_2_PAGE_SIZE

public static final int LOG_2_PAGE_SIZE

See Also:

• Constant Field Values

PAGE_SIZE

public static final int PAGE_SIZE

See Also:

• Constant Field Values

PAGE_MASK

public static final int PAGE_MASK

See Also:

• Constant Field Values

INVALID_PAGE

public static final int INVALID_PAGE

See Also:

• Constant Field Values

INITIAL_PAGES_ALLOCATED

public static final int INITIAL_PAGES_ALLOCATED

See Also:

• Constant Field Values

DESCRIPTOR_SIZE_BYTES

public static final int DESCRIPTOR_SIZE_BYTES

See Also:

• Constant Field Values

objectBuffer

public final ResizableStorageBuffer objectBuffer

The GPU side buffer containing all the objects, logically divided into page frames.

frameDescriptorBuffer

public final ResizableStorageBuffer frameDescriptorBuffer

The GPU side buffer containing 32 bit descriptors for each page frame.

Constructor Details

ObjectStorage

public ObjectStorage(long objectSizeBytes)

Method Details

createMapping

public ObjectStorage.Mapping createMapping()

byteCapacity

public long byteCapacity()

Specified by:

byteCapacity in class AbstractArena

free

public void free(int i)

Overrides:

free in class AbstractArena

grow

protected void grow()

Specified by:

grow in class AbstractArena

uploadDescriptors

public void uploadDescriptors(StagingBuffer stagingBuffer)

delete

public void delete()

objectIndex2PageIndex

public static int objectIndex2PageIndex(int objectIndex)

pageIndex2ObjectIndex

public static int pageIndex2ObjectIndex(int pageIndex)