//////////////////////////////////////////////////////////////
// rasterop.h

int bit_set( unsigned char bits[3300][300], int x1, int y1, int x2, int y2 );
int bit_blt( unsigned char d[3300][300], int x, int y, unsigned char *s, int w, int h );
int bit_neg( unsigned char *d, int n );
int bit_res( unsigned char *d, int w1, int h1, int w2, int h2 );