// Jason Rohrer
// Dither.h

/**
*
*	Dithering functions for decreasing number of bits per image sample
*
*	Created 11-28-99
*	Mods:
*/


// Dither a 32-bit image down to 16-bit, channel by channel
// drop alpha
// store 16 bit components in 32 bits...
// store 16 bit as R:G:B  =  5:5:5
void Dither16( unsigned long *image32, int imageHigh, int imageWide, unsigned long *image16, int ditherBlockSize = 4 );