HdrDecoder

java.lang.Object

org.ngengine.stbimage.HdrDecoder

All Implemented Interfaces:: StbDecoder

public class HdrDecoder extends Object implements StbDecoder

Radiance HDR decoder, RGBE to float conversion.

Constructor Summary

Constructors

Constructor

Description

HdrDecoder(ByteBuffer buffer, IntFunction<ByteBuffer> allocator, boolean flipVertically)

Creates an HDR decoder instance.
Method Summary

Modifier and Type

Method

Description

IntFunction<ByteBuffer>

getAllocator()

Returns the allocator used by this decoder for output buffers.

StbImageInfo

info()

Reads image metadata without fully decoding pixel data.

static boolean

isHdr(ByteBuffer buffer)

Tests if the source starts with a Radiance HDR signature.

StbImageResult

load(int desiredChannels)

Decodes image pixels.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.ngengine.stbimage.StbDecoder
load16, loadAllFrames, loadf, loadNextFrame

Constructor Details
- HdrDecoder
  
  public HdrDecoder(ByteBuffer buffer, IntFunction<ByteBuffer> allocator, boolean flipVertically)
  
  Creates an HDR decoder instance.
  
  Parameters:
  
  buffer - source data
  
  allocator - output allocator
  
  flipVertically - true to vertically flip decoded output
Method Details
- isHdr
  
  public static boolean isHdr(ByteBuffer buffer)
  
  Tests if the source starts with a Radiance HDR signature.
  
  Parameters:
  
  buffer - source bytes
  
  Returns:
  
  true if HDR signature is present
- info
  
  public StbImageInfo info()
  
  Reads image metadata without fully decoding pixel data.
  
  Specified by:
  
  info in interface StbDecoder
  
  Returns:
  
  image information
- getAllocator
  
  public IntFunction<ByteBuffer> getAllocator()
  
  Returns the allocator used by this decoder for output buffers.
  
  Specified by:
  
  getAllocator in interface StbDecoder
  
  Returns:
  
  allocator function
- load
  
  public StbImageResult load(int desiredChannels)
  
  Decodes image pixels.
  
  Specified by:
  
  load in interface StbDecoder
  
  Parameters:
  
  desiredChannels - requested output channels (0 keeps source/default behavior)
  
  Returns:
  
  decoded image result