#include <u.h>#include <libc.h>#include <draw.h> staticintunitsperline(Rectangle r, int d, int bitsperunit){ if(d <= 0 || d > 32) /* being called wrong. d is image depth. */ abort(); return (r.max.x*d - (r.min.x*d & -bitsperunit) + bitsperunit - 1) / bitsperunit;} intwordsperline(Rectangle r, int d){ return unitsperline(r, d, 8*sizeof(ulong));} intbytesperline(Rectangle r, int d){ return unitsperline(r, d, 8);}
#include <u.h>
#include <libc.h>
#include <draw.h>
static
int
unitsperline(Rectangle r, int d, int bitsperunit)
{
if(d <= 0 || d > 32) /* being called wrong. d is image depth. */
abort();
return (r.max.x*d - (r.min.x*d & -bitsperunit) + bitsperunit - 1) / bitsperunit;
}
int
wordsperline(Rectangle r, int d)
{
return unitsperline(r, d, 8*sizeof(ulong));
}
int
bytesperline(Rectangle r, int d)
{
return unitsperline(r, d, 8);
}