andyli

/**
 * Some of the renderings can be found at
 * http://www.flickr.com/photos/andy-li/sets/72157625719497466/
 * 
 * 
 * Copyright (c) 2011, Andy Li http://www.onthewings.net/
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:

andyli

/**
 * Some of the renderings can be found at
 * http://www.flickr.com/photos/andy-li/sets/72157625719497466/
 * 
 * 
 * Copyright (c) 2011, Andy Li http://www.onthewings.net/
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:

andyli

/**
 * Some of the renderings can be found at
 * http://www.flickr.com/photos/andy-li/sets/72157625719497466/
 * 
 * 
 * Copyright (c) 2011, Andy Li http://www.onthewings.net/
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:

andyli

/**
 * Some of the renderings can be found at
 * http://www.flickr.com/photos/andy-li/sets/72157625719497466/
 * 
 * 
 * Copyright (c) 2011, Andy Li http://www.onthewings.net/
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:

andyli

/**
 * Some of the renderings can be found at
 * http://www.flickr.com/photos/andy-li/sets/72157625719497466/
 * 
 * 
 * Copyright (c) 2011, Andy Li http://www.onthewings.net/
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:

andyli

/**
 * Some of the renderings can be found at
 * http://www.flickr.com/photos/andy-li/sets/72157625719497466/
 * 
 * 
 * Copyright (c) 2011, Andy Li http://www.onthewings.net/
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:

andyli

/**
 * Some of the renderings can be found at
 * http://www.flickr.com/photos/andy-li/sets/72157625719497466/
 * 
 * 
 * Copyright (c) 2011, Andy Li http://www.onthewings.net/
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:

andyli

/**
 * Some of the renderings can be found at
 * http://www.flickr.com/photos/andy-li/sets/72157625719497466/
 * 
 * 
 * Copyright (c) 2011, Andy Li http://www.onthewings.net/
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:

andyli

/**
 * Some of the renderings can be found at
 * http://www.flickr.com/photos/andy-li/sets/72157625719497466/
 * 
 * 
 * Copyright (c) 2011, Andy Li http://www.onthewings.net/
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:

andyli

//A backup of http://lists.motion-twin.com/pipermail/haxe/2009-July/027010.html
/**
 * Memory Layout:
 * Block size b = DATA_SIZE * (N + 2) * (M + 2)
 * 1. d			0  ...  b-1
 * 2. d_prev	b  ... 2b-1
 * 3. u			2b ... 3b-1
 * 4. u_prev	3b ... 4b-1
 * 5. v			4b ... 5b-1
 * 6. v_prev	5b ... 6b-1