Package com.openinventor.ldm.tiles

Class SoCpuBufferCompressed

java.lang.Object

com.openinventor.inventor.Inventor

com.openinventor.inventor.devices.SoBufferObject

com.openinventor.inventor.devices.SoCpuBufferObject

com.openinventor.ldm.tiles.SoCpuBufferCompressed

All Implemented Interfaces:

SafeDisposable

public class SoCpuBufferCompressed
extends SoCpuBufferObject

LDM buffer object optimized for compressed tile data. This type of buffer efficiently represents a tile containing compressed data (usually read from a compressed LDM file). The buffer can be used like any other buffer, but uses much less memory when its contents are not actually being accessed.

SoBufferPropertiesInterface

See Also:

SoCpuBufferObject

Nested Class Summary

Nested classes/interfaces inherited from class com.openinventor.inventor.devices.SoBufferObject

SoBufferObject.AccessModes

Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor

Inventor.ConstructorCommand

Field Summary

Fields inherited from class com.openinventor.inventor.devices.SoBufferObject

SO_BUFFER_SIZE_ALL

Fields inherited from class com.openinventor.inventor.Inventor

VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors

Constructor	Description
SoCpuBufferCompressed()	Default constructor.
SoCpuBufferCompressed(SoDataCompressor compressor)	Constructor with compressor given as parameter.

Method Summary

Modifier and Type	Method	Description
double[]	getMinMax()	Get the min and max values in the buffer, if they are known.
long	getRealSize()	Returns the size of the uncompressed data in bytes.
void	map(SoCpuBufferObject targetBufferObject, SoBufferObject.AccessModes accessMode)	Calls map(targetBufferObject, accessMode, (long)0, (long)SO_BUFFER_SIZE_ALL).
void	map(SoCpuBufferObject targetBufferObject, SoBufferObject.AccessModes accessMode, long startPosition)	Calls map(targetBufferObject, accessMode, startPosition, (long)SO_BUFFER_SIZE_ALL).
void	map(SoCpuBufferObject targetBufferObject, SoBufferObject.AccessModes accessMode, long startPosition, long mappingSize)	Map the current buffer object into the specified CPU buffer object.
void	map(SoGLBufferObject targetBufferObject, SoBufferObject.AccessModes accessMode)	Calls map(targetBufferObject, accessMode, (long)0, (long)SO_BUFFER_SIZE_ALL).
void	map(SoGLBufferObject targetBufferObject, SoBufferObject.AccessModes accessMode, long startPosition)	Calls map(targetBufferObject, accessMode, startPosition, (long)SO_BUFFER_SIZE_ALL).
void	map(SoGLBufferObject targetBufferObject, SoBufferObject.AccessModes accessMode, long startPosition, long mappingSize)	Map the current buffer object into the specified GL buffer object.
void	setCompressor(SoDataCompressor compressor)	Set the compressor used to decompress buffer.
void	setMinMax(double min, double max)	Set the min and max values for this buffer.
void	unmap(SoCpuBufferObject bufferObject)	Unmap the specified CPU buffer object It is defined just to speed up the call when the type of the object is known.
void	unmap(SoGLBufferObject bufferObject)	Unmap the specified GL buffer object It is defined just to speed up the call when the type of the object is known.

Methods inherited from class com.openinventor.inventor.devices.SoCpuBufferObject

clearInstance, setBuffer, setSize

Methods inherited from class com.openinventor.inventor.devices.SoBufferObject

createInstance, dispose, getContext, getMappedBufferObject, getMappedBufferObjectAccessMode, getMappedBufferObjectPosition, getMappedBufferObjectSize, getSize, isDisposable, lockBuffer, map, map, map, map, map, map, memcpy, memcpy, memcpy, memcpy, unlockBuffer, unmap, unmap

Methods inherited from class com.openinventor.inventor.Inventor

getNativeResourceHandle

Methods inherited from class java.lang.Object

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

Constructor Detail

SoCpuBufferCompressed

public SoCpuBufferCompressed()

Default constructor.

SoCpuBufferCompressed

public SoCpuBufferCompressed(SoDataCompressor compressor)

Constructor with compressor given as parameter.

Method Detail

map

public void map(SoCpuBufferObject targetBufferObject,
                SoBufferObject.AccessModes accessMode,
                long startPosition)

Calls map(targetBufferObject, accessMode, startPosition, (long)SO_BUFFER_SIZE_ALL).

map

public void map(SoGLBufferObject targetBufferObject,
                SoBufferObject.AccessModes accessMode)

Calls map(targetBufferObject, accessMode, (long)0, (long)SO_BUFFER_SIZE_ALL).

map

public void map(SoGLBufferObject targetBufferObject,
                SoBufferObject.AccessModes accessMode,
                long startPosition)

Calls map(targetBufferObject, accessMode, startPosition, (long)SO_BUFFER_SIZE_ALL).

map

public void map(SoCpuBufferObject targetBufferObject,
                SoBufferObject.AccessModes accessMode)

Calls map(targetBufferObject, accessMode, (long)0, (long)SO_BUFFER_SIZE_ALL).

unmap

public void unmap(SoGLBufferObject bufferObject)

Unmap the specified GL buffer object
It is defined just to speed up the call when the type of the object is known.
If the access mode supports writing the specified buffer is sync'd with the buffer.

See the general unmap function for more information.

Parameters:

bufferObject - Buffer to be unmapped.

map

public void map(SoCpuBufferObject targetBufferObject,
                SoBufferObject.AccessModes accessMode,
                long startPosition,
                long mappingSize)

Map the current buffer object into the specified CPU buffer object.

See the general map method for more information.

map

public void map(SoGLBufferObject targetBufferObject,
                SoBufferObject.AccessModes accessMode,
                long startPosition,
                long mappingSize)

Map the current buffer object into the specified GL buffer object.

See the general map method for more information.

getMinMax

public double[] getMinMax()

Get the min and max values in the buffer, if they are known.
Returns false if these values have not been set or computed. Returns true if values are available.

Parameters:

min - user variable to store min value

max - user variable to store max value

unmap

public void unmap(SoCpuBufferObject bufferObject)

Unmap the specified CPU buffer object
It is defined just to speed up the call when the type of the object is known.
Remove the specified bufferObject from the list of buffers which map the current buffer.

See the general unmap function for more information.

getRealSize

public long getRealSize()

Returns the size of the uncompressed data in bytes.

setMinMax

public void setMinMax(double min,
                      double max)

Set the min and max values for this buffer.

Parameters:

min - user variable containing min value

max - user variable containing max value

setCompressor

public void setCompressor(SoDataCompressor compressor)

Set the compressor used to decompress buffer.

Parameters:

compressor - Pointer to the compressor to use