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package com.sun.webkit.graphics;


public abstract class WCImageDecoder {

    
Receives a portion of image data.
Params:
data –  a portion of image data, or null if all data received/**
     * Receives a portion of image data.
     *
     * @param data  a portion of image data,
     *              or {@code null} if all data received
     */
    protected abstract void addImageData(byte[] data);

    
Returns image size.
/**
     * Returns image size.
     */
    protected abstract int[] getImageSize();

    
Returns a number of frames of the decoded image.
Returns:
 a number of image frames/**
     * Returns a number of frames of the decoded image.
     *
     * @return  a number of image frames
     */
    protected abstract int getFrameCount();

    
Returns image frame at the specified index.
Params:
index – frame index/**
     * Returns image frame at the specified index.
     * @param index frame index
     */
    protected abstract WCImageFrame getFrame(int index);

    
Returns frame duration in ms
Params:
index – frame index/**
     * Returns frame duration in ms
     * @param index frame index
     */
    protected abstract int getFrameDuration(int index);

    
Returns frame size, array[0] represents width and array[1]
represents height.
Params:
index – frame index/**
     * Returns frame size, array[0] represents width and array[1]
     * represents height.
     * @param index frame index
     */
    protected abstract int[] getFrameSize(int index);

    
Returns whether the frame is complete or partial
Params:
index – frame index/**
     * Returns whether the frame is complete or partial
     * @param index frame index
     */
    protected abstract boolean getFrameCompleteStatus(int index);

    protected abstract void loadFromResource(String name);

    protected abstract void destroy();

    protected abstract String getFilenameExtension();

}