org.sunflow.image.writers
Class HDRBitmapWriter

java.lang.Object
  org.sunflow.image.writers.HDRBitmapWriter

All Implemented Interfaces:

BitmapWriter

public class HDRBitmapWriter
extends java.lang.Object
implements BitmapWriter

Constructor Summary

HDRBitmapWriter()

Method Summary

void	closeFile() Close the file, this completes the bitmap writing process.
void	configure(java.lang.String option, java.lang.String value) This method will be called before writing begins.
void	openFile(java.lang.String filename) Open a handle to the specified file for writing.
void	writeHeader(int width, int height, int tileSize) Write the bitmap header.
void	writeTile(int x, int y, int w, int h, Color[] color, float[] alpha) Write a tile of data.

Methods inherited from class java.lang.Object

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

Constructor Detail

HDRBitmapWriter

public HDRBitmapWriter()

Method Detail

configure

public void configure(java.lang.String option,
                      java.lang.String value)

Description copied from interface: BitmapWriter

This method will be called before writing begins. It is used to set common attributes to file writers. Currently supported keywords include:

• "compression"
• "channeltype": "byte", "short", "half", "float"

Note that this method should not fail if its input is not supported or invalid. It should gracefully ignore the error and keep its default state.

Specified by:

configure in interface BitmapWriter

openFile

public void openFile(java.lang.String filename)
              throws java.io.IOException

Description copied from interface: BitmapWriter

Open a handle to the specified file for writing. If the writer buffers the image and writes it on close, then the filename should be stored.

Specified by:

openFile in interface BitmapWriter

Parameters:

filename - filename to write the bitmap to

Throws:

java.io.IOException - thrown if an I/O error occurs

writeHeader

public void writeHeader(int width,
                        int height,
                        int tileSize)
                 throws java.io.IOException,
                        java.lang.UnsupportedOperationException

Description copied from interface: BitmapWriter

Write the bitmap header. This may be defered if the image is buffered for writing all at once on close. Note that if tile size is positive, data sent to this class is guarenteed to arrive in tiles of that size (except at borders). Otherwise, it should be assumed that the data is random, and that it may overlap. The writer should then either throw an error or start buffering data manually.

Specified by:

writeHeader in interface BitmapWriter

Parameters:

width - image width

height - image height

tileSize - tile size or 0 if the image will not be sent in tiled form

Throws:

java.io.IOException - thrown if an I/O error occurs

java.lang.UnsupportedOperationException - thrown if this writer does not support writing the image with the supplied tile size

writeTile

public void writeTile(int x,
                      int y,
                      int w,
                      int h,
                      Color[] color,
                      float[] alpha)
               throws java.io.IOException

Description copied from interface: BitmapWriter

Write a tile of data. Note that this method may be called by more than one thread, so it should be made thread-safe if possible.

Specified by:

writeTile in interface BitmapWriter

Parameters:

x - tile x coordinate

y - tile y coordinate

w - tile width

h - tile height

color - color data

alpha - alpha data

Throws:

java.io.IOException - thrown if an I/O error occurs

closeFile

public void closeFile()
               throws java.io.IOException

Description copied from interface: BitmapWriter

Close the file, this completes the bitmap writing process.

Specified by:

closeFile in interface BitmapWriter

Throws:

java.io.IOException - thrown if an I/O error occurs