/**
* Creates the data byte array for this chunk.
*
* @return The data byte array.
*/
private byte[] createDataBytes() {
ByteComposer composer = new ByteComposer(13);
composer.composeInt(width);
composer.composeInt(height);
composer.composeInt(sampleDepth, 1);
composer.composeInt(mode.dataValue(), 1);
composer.composeInt(compressionEngine.dataValue(), 1);
composer.composeInt(filterMethod.dataValue(), 1);
composer.composeInt(interlaceMethod.dataValue(), 1);
return composer.toArray();
}
/**
* Creates the data byte array from the internal properties.
*
* @return The data bytes.
*/
private byte[] createDataBytes() {
ByteComposer composer = null;
switch (mode) {
case INDEXED:
composer = new ByteComposer(1);
composer.composeInt(paletteIndex, 1);
break;
case GRAYSCALE:
case GRAYSCALE_ALPHA:
composer = new ByteComposer(2);
composer.composeInt(color.getRed(), 2);
break;
case TRUECOLOR:
case TRUECOLOR_ALPHA:
composer = new ByteComposer(6);
composer.composeInt(color.getRed(), 2);
composer.composeInt(color.getGreen(), 2);
composer.composeInt(color.getBlue(), 2);
break;
}
return composer.toArray();
}