Package org.bytedeco.javacpp
Class FloatPointer
- java.lang.Object
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- org.bytedeco.javacpp.Pointer
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- org.bytedeco.javacpp.FloatPointer
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- All Implemented Interfaces:
java.lang.AutoCloseable
@Properties(inherit=javacpp.class) public class FloatPointer extends Pointer
The peer class to native pointers and arrays offloat
. All operations take into account the position and limit, when appropriate.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer
Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.DeallocatorReference, Pointer.DeallocatorThread, Pointer.NativeDeallocator, Pointer.ProxyDeallocator, Pointer.ReferenceCounter
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Field Summary
Fields Modifier and Type Field Description private static Logger
logger
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Fields inherited from class org.bytedeco.javacpp.Pointer
address, capacity, deallocatorThread, limit, maxBytes, maxPhysicalBytes, maxRetries, position
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Constructor Summary
Constructors Constructor Description FloatPointer()
FloatPointer(float... array)
Allocates enough memory for the array and copies it.FloatPointer(long size)
Allocates a nativefloat
array of the given size.FloatPointer(java.nio.FloatBuffer buffer)
For direct buffers, callsPointer(Buffer)
, while for buffers backed with an array, allocates enough memory for the array and copies it.FloatPointer(Pointer p)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description private void
allocateArray(long size)
java.nio.FloatBuffer
asBuffer()
Same asPointer.asByteBuffer()
, but can be overridden to return subclasses of Buffer.FloatPointer
capacity(long capacity)
Sets the capacity and returns this.float
get()
FloatPointer
get(float[] array)
FloatPointer
get(float[] array, int offset, int length)
Reads a portion of the native array into a Java array.float
get(long i)
FloatPointer
getPointer(long i)
ReturnsgetPointer(getClass(), i)
.FloatPointer
limit(long limit)
Sets the limit and returns this.FloatPointer
position(long position)
Sets the position and returns this.FloatPointer
put(float f)
FloatPointer
put(float... array)
FloatPointer
put(float[] array, int offset, int length)
Writes a portion of a Java array into the native array.FloatPointer
put(long i, float f)
Copies thefloat
value to the i-th element of a native array.int
sizeof()
Returns 1 for Pointer or BytePointer elseLoader.sizeof(getClass())
or -1 on error.-
Methods inherited from class org.bytedeco.javacpp.Pointer
address, asByteBuffer, availablePhysicalBytes, calloc, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, getDirectBufferAddress, getPointer, getPointer, getPointer, hashCode, init, interruptDeallocatorThread, isNull, isNull, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetAddress, offsetof, offsetof, parseBytes, physicalBytes, physicalBytesInaccurate, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, toString, totalBytes, totalCount, totalPhysicalBytes, withDeallocator, zero
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Field Detail
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logger
private static final Logger logger
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Constructor Detail
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FloatPointer
public FloatPointer(float... array)
Allocates enough memory for the array and copies it.- Parameters:
array
- the array to copy- See Also:
put(float[])
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FloatPointer
public FloatPointer(java.nio.FloatBuffer buffer)
For direct buffers, callsPointer(Buffer)
, while for buffers backed with an array, allocates enough memory for the array and copies it.- Parameters:
buffer
- the Buffer to reference or copy- See Also:
put(float[])
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FloatPointer
public FloatPointer(long size)
Allocates a nativefloat
array of the given size.- Parameters:
size
- the number offloat
elements to allocate
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FloatPointer
public FloatPointer()
- See Also:
Pointer()
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FloatPointer
public FloatPointer(Pointer p)
- See Also:
Pointer(Pointer)
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Method Detail
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allocateArray
private void allocateArray(long size)
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position
public FloatPointer position(long position)
Description copied from class:Pointer
Sets the position and returns this. That makes thearray.position(i)
statement sort of equivalent to thearray[i]
statement in C++.- Overrides:
position
in classPointer
- Parameters:
position
- the new position- Returns:
- this
- See Also:
Pointer.position(long)
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limit
public FloatPointer limit(long limit)
Description copied from class:Pointer
Sets the limit and returns this. Used to limit the size of an operation on this object.- Overrides:
limit
in classPointer
- Parameters:
limit
- the new limit- Returns:
- this
- See Also:
Pointer.position(long)
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capacity
public FloatPointer capacity(long capacity)
Description copied from class:Pointer
Sets the capacity and returns this. Should not be called more than once after allocation.- Overrides:
capacity
in classPointer
- Parameters:
capacity
- the new capacity- Returns:
- this
- See Also:
Pointer.capacity(long)
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sizeof
public int sizeof()
Description copied from class:Pointer
Returns 1 for Pointer or BytePointer elseLoader.sizeof(getClass())
or -1 on error.
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getPointer
public FloatPointer getPointer(long i)
Description copied from class:Pointer
ReturnsgetPointer(getClass(), i)
.- Overrides:
getPointer
in classPointer
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get
public float get()
- Returns:
get(0)
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get
public float get(long i)
- Returns:
- the i-th
float
value of a native array
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put
public FloatPointer put(float f)
- Returns:
put(0, f)
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put
public FloatPointer put(long i, float f)
Copies thefloat
value to the i-th element of a native array.- Parameters:
i
- the index into the arrayf
- thefloat
value to copy- Returns:
- this
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get
public FloatPointer get(float[] array)
- Returns:
get(array, 0, array.length)
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put
public FloatPointer put(float... array)
- Returns:
put(array, 0, array.length)
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get
public FloatPointer get(float[] array, int offset, int length)
Reads a portion of the native array into a Java array.- Parameters:
array
- the array to write tooffset
- the offset into the array where to start writinglength
- the length of data to read and write- Returns:
- this
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put
public FloatPointer put(float[] array, int offset, int length)
Writes a portion of a Java array into the native array.- Parameters:
array
- the array to read fromoffset
- the offset into the array where to start readinglength
- the length of data to read and write- Returns:
- this
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asBuffer
public final java.nio.FloatBuffer asBuffer()
Description copied from class:Pointer
Same asPointer.asByteBuffer()
, but can be overridden to return subclasses of Buffer.- Overrides:
asBuffer
in classPointer
- Returns:
asByteBuffer().asFloatBuffer()
- See Also:
BytePointer.asBuffer()
,ShortPointer.asBuffer()
,IntPointer.asBuffer()
,LongPointer.asBuffer()
,asBuffer()
,DoublePointer.asBuffer()
,CharPointer.asBuffer()
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