| 212,7 → 212,7 |
|---|
| if (p[2] <= x) p += 2; |
| if (p[1] <= x) p += 1; |
| |
| return p - lkpSquares; |
| return (uint32_t)(p - lkpSquares); |
| } |
| |
| /* sqr(x) Square root of x */ |
| 235,7 → 235,7 |
|---|
| 1024, inclusive (Mac OS) */ |
| value_type ff_cos(value_type x){ |
| //return RINT(TRIGAMP*cos(FFANGLE(x))); |
| return RINT(TRIGAMP*costab[abs(x) % COSTABSIZE]); |
| return (value_type)RINT(TRIGAMP*costab[abs(x) % COSTABSIZE]); |
| } |
| |
| /* tan(x) Bounded tangent function of x, where x is an integer |
| 246,19 → 246,19 |
|---|
| // TODO: Shouldn't the output be bounded to -1024..1024, or do I understand the definition wrong? |
| if (x < 0) x--; /* required for FilterFactory compatibility */ |
| while (x < 0) x += TANTABSIZE; |
| return RINT(2*TRIGAMP*tantab[x % TANTABSIZE]); /* FIXME: why do we need factor 2? */ |
| return (value_type)RINT(2*TRIGAMP*tantab[x % TANTABSIZE]); /* FIXME: why do we need factor 2? */ |
| } |
| |
| /* r2x(d,m) x displacement of the pixel m units away, at an angle of d, |
| from an arbitrary center */ |
| value_type ff_r2x(value_type d,value_type m){ |
| return RINT(m*costab[abs(d) % COSTABSIZE]); |
| return (value_type)RINT(m*costab[abs(d) % COSTABSIZE]); |
| } |
| |
| /* r2y(d,m) y displacement of the pixel m units away, at an angle of d, |
| from an arbitrary center */ |
| value_type ff_r2y(value_type d,value_type m){ |
| return RINT(m*costab[abs(d-256) % COSTABSIZE]); |
| return (value_type)RINT(m*costab[abs(d-256) % COSTABSIZE]); |
| } |
| |
| /* c2d(x,y) Angle displacement of the pixel at coordinates x,y */ |
| 269,7 → 269,7 |
|---|
| //return RINT(TO_FFANGLE(atan2(-y,-x))); |
| |
| // Behavior in FilterFoundry 1.7+: Matches FilterFactory |
| return RINT(TO_FFANGLE(atan2(y,x))); |
| return (value_type)RINT(TO_FFANGLE(atan2(y,x))); |
| } |
| |
| /* c2m(x,y) Magnitude displacement of the pixel at coordinates x,y */ |