
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (* (floor h) dY.v))
(t_2 (* (floor w) dY.u))
(t_3 (* (floor w) dX.u))
(t_4 (fmax (+ (* t_3 t_3) (* t_0 t_0)) (+ (* t_2 t_2) (* t_1 t_1))))
(t_5 (sqrt t_4))
(t_6 (fabs (- (* t_3 t_1) (* t_0 t_2))))
(t_7 (/ t_4 t_6))
(t_8 (> t_7 (floor maxAniso)))
(t_9 (if t_8 (/ t_5 (floor maxAniso)) (/ t_6 t_5)))
(t_10 (if t_8 (floor maxAniso) t_7)))
(if (< t_9 1.0) (fmax 1.0 (* t_10 t_9)) t_10)))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = floorf(h) * dX_46_v;
float t_1 = floorf(h) * dY_46_v;
float t_2 = floorf(w) * dY_46_u;
float t_3 = floorf(w) * dX_46_u;
float t_4 = fmaxf(((t_3 * t_3) + (t_0 * t_0)), ((t_2 * t_2) + (t_1 * t_1)));
float t_5 = sqrtf(t_4);
float t_6 = fabsf(((t_3 * t_1) - (t_0 * t_2)));
float t_7 = t_4 / t_6;
int t_8 = t_7 > floorf(maxAniso);
float tmp;
if (t_8) {
tmp = t_5 / floorf(maxAniso);
} else {
tmp = t_6 / t_5;
}
float t_9 = tmp;
float tmp_1;
if (t_8) {
tmp_1 = floorf(maxAniso);
} else {
tmp_1 = t_7;
}
float t_10 = tmp_1;
float tmp_2;
if (t_9 < 1.0f) {
tmp_2 = fmaxf(1.0f, (t_10 * t_9));
} else {
tmp_2 = t_10;
}
return tmp_2;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(h) * dX_46_v) t_1 = Float32(floor(h) * dY_46_v) t_2 = Float32(floor(w) * dY_46_u) t_3 = Float32(floor(w) * dX_46_u) t_4 = (Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) != Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0))) ? Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1)) : ((Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1)) != Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1))) ? Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) : max(Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)), Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1)))) t_5 = sqrt(t_4) t_6 = abs(Float32(Float32(t_3 * t_1) - Float32(t_0 * t_2))) t_7 = Float32(t_4 / t_6) t_8 = t_7 > floor(maxAniso) tmp = Float32(0.0) if (t_8) tmp = Float32(t_5 / floor(maxAniso)); else tmp = Float32(t_6 / t_5); end t_9 = tmp tmp_1 = Float32(0.0) if (t_8) tmp_1 = floor(maxAniso); else tmp_1 = t_7; end t_10 = tmp_1 tmp_2 = Float32(0.0) if (t_9 < Float32(1.0)) tmp_2 = (Float32(1.0) != Float32(1.0)) ? Float32(t_10 * t_9) : ((Float32(t_10 * t_9) != Float32(t_10 * t_9)) ? Float32(1.0) : max(Float32(1.0), Float32(t_10 * t_9))); else tmp_2 = t_10; end return tmp_2 end
function tmp_4 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = floor(h) * dX_46_v; t_1 = floor(h) * dY_46_v; t_2 = floor(w) * dY_46_u; t_3 = floor(w) * dX_46_u; t_4 = max(((t_3 * t_3) + (t_0 * t_0)), ((t_2 * t_2) + (t_1 * t_1))); t_5 = sqrt(t_4); t_6 = abs(((t_3 * t_1) - (t_0 * t_2))); t_7 = t_4 / t_6; t_8 = t_7 > floor(maxAniso); tmp = single(0.0); if (t_8) tmp = t_5 / floor(maxAniso); else tmp = t_6 / t_5; end t_9 = tmp; tmp_2 = single(0.0); if (t_8) tmp_2 = floor(maxAniso); else tmp_2 = t_7; end t_10 = tmp_2; tmp_3 = single(0.0); if (t_9 < single(1.0)) tmp_3 = max(single(1.0), (t_10 * t_9)); else tmp_3 = t_10; end tmp_4 = tmp_3; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloorh\right\rfloor \cdot dX.v\\
t_1 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_2 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_3 := \left\lfloorw\right\rfloor \cdot dX.u\\
t_4 := \mathsf{max}\left(t_3 \cdot t_3 + t_0 \cdot t_0, t_2 \cdot t_2 + t_1 \cdot t_1\right)\\
t_5 := \sqrt{t_4}\\
t_6 := \left|t_3 \cdot t_1 - t_0 \cdot t_2\right|\\
t_7 := \frac{t_4}{t_6}\\
t_8 := t_7 > \left\lfloormaxAniso\right\rfloor\\
t_9 := \begin{array}{l}
\mathbf{if}\;t_8:\\
\;\;\;\;\frac{t_5}{\left\lfloormaxAniso\right\rfloor}\\
\mathbf{else}:\\
\;\;\;\;\frac{t_6}{t_5}\\
\end{array}\\
t_10 := \begin{array}{l}
\mathbf{if}\;t_8:\\
\;\;\;\;\left\lfloormaxAniso\right\rfloor\\
\mathbf{else}:\\
\;\;\;\;t_7\\
\end{array}\\
\mathbf{if}\;t_9 < 1:\\
\;\;\;\;\mathsf{max}\left(1, t_10 \cdot t_9\right)\\
\mathbf{else}:\\
\;\;\;\;t_10\\
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 3 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (* (floor h) dY.v))
(t_2 (* (floor w) dY.u))
(t_3 (* (floor w) dX.u))
(t_4 (fmax (+ (* t_3 t_3) (* t_0 t_0)) (+ (* t_2 t_2) (* t_1 t_1))))
(t_5 (sqrt t_4))
(t_6 (fabs (- (* t_3 t_1) (* t_0 t_2))))
(t_7 (/ t_4 t_6))
(t_8 (> t_7 (floor maxAniso)))
(t_9 (if t_8 (/ t_5 (floor maxAniso)) (/ t_6 t_5)))
(t_10 (if t_8 (floor maxAniso) t_7)))
(if (< t_9 1.0) (fmax 1.0 (* t_10 t_9)) t_10)))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = floorf(h) * dX_46_v;
float t_1 = floorf(h) * dY_46_v;
float t_2 = floorf(w) * dY_46_u;
float t_3 = floorf(w) * dX_46_u;
float t_4 = fmaxf(((t_3 * t_3) + (t_0 * t_0)), ((t_2 * t_2) + (t_1 * t_1)));
float t_5 = sqrtf(t_4);
float t_6 = fabsf(((t_3 * t_1) - (t_0 * t_2)));
float t_7 = t_4 / t_6;
int t_8 = t_7 > floorf(maxAniso);
float tmp;
if (t_8) {
tmp = t_5 / floorf(maxAniso);
} else {
tmp = t_6 / t_5;
}
float t_9 = tmp;
float tmp_1;
if (t_8) {
tmp_1 = floorf(maxAniso);
} else {
tmp_1 = t_7;
}
float t_10 = tmp_1;
float tmp_2;
if (t_9 < 1.0f) {
tmp_2 = fmaxf(1.0f, (t_10 * t_9));
} else {
tmp_2 = t_10;
}
return tmp_2;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(h) * dX_46_v) t_1 = Float32(floor(h) * dY_46_v) t_2 = Float32(floor(w) * dY_46_u) t_3 = Float32(floor(w) * dX_46_u) t_4 = (Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) != Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0))) ? Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1)) : ((Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1)) != Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1))) ? Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) : max(Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)), Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1)))) t_5 = sqrt(t_4) t_6 = abs(Float32(Float32(t_3 * t_1) - Float32(t_0 * t_2))) t_7 = Float32(t_4 / t_6) t_8 = t_7 > floor(maxAniso) tmp = Float32(0.0) if (t_8) tmp = Float32(t_5 / floor(maxAniso)); else tmp = Float32(t_6 / t_5); end t_9 = tmp tmp_1 = Float32(0.0) if (t_8) tmp_1 = floor(maxAniso); else tmp_1 = t_7; end t_10 = tmp_1 tmp_2 = Float32(0.0) if (t_9 < Float32(1.0)) tmp_2 = (Float32(1.0) != Float32(1.0)) ? Float32(t_10 * t_9) : ((Float32(t_10 * t_9) != Float32(t_10 * t_9)) ? Float32(1.0) : max(Float32(1.0), Float32(t_10 * t_9))); else tmp_2 = t_10; end return tmp_2 end
function tmp_4 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = floor(h) * dX_46_v; t_1 = floor(h) * dY_46_v; t_2 = floor(w) * dY_46_u; t_3 = floor(w) * dX_46_u; t_4 = max(((t_3 * t_3) + (t_0 * t_0)), ((t_2 * t_2) + (t_1 * t_1))); t_5 = sqrt(t_4); t_6 = abs(((t_3 * t_1) - (t_0 * t_2))); t_7 = t_4 / t_6; t_8 = t_7 > floor(maxAniso); tmp = single(0.0); if (t_8) tmp = t_5 / floor(maxAniso); else tmp = t_6 / t_5; end t_9 = tmp; tmp_2 = single(0.0); if (t_8) tmp_2 = floor(maxAniso); else tmp_2 = t_7; end t_10 = tmp_2; tmp_3 = single(0.0); if (t_9 < single(1.0)) tmp_3 = max(single(1.0), (t_10 * t_9)); else tmp_3 = t_10; end tmp_4 = tmp_3; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloorh\right\rfloor \cdot dX.v\\
t_1 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_2 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_3 := \left\lfloorw\right\rfloor \cdot dX.u\\
t_4 := \mathsf{max}\left(t_3 \cdot t_3 + t_0 \cdot t_0, t_2 \cdot t_2 + t_1 \cdot t_1\right)\\
t_5 := \sqrt{t_4}\\
t_6 := \left|t_3 \cdot t_1 - t_0 \cdot t_2\right|\\
t_7 := \frac{t_4}{t_6}\\
t_8 := t_7 > \left\lfloormaxAniso\right\rfloor\\
t_9 := \begin{array}{l}
\mathbf{if}\;t_8:\\
\;\;\;\;\frac{t_5}{\left\lfloormaxAniso\right\rfloor}\\
\mathbf{else}:\\
\;\;\;\;\frac{t_6}{t_5}\\
\end{array}\\
t_10 := \begin{array}{l}
\mathbf{if}\;t_8:\\
\;\;\;\;\left\lfloormaxAniso\right\rfloor\\
\mathbf{else}:\\
\;\;\;\;t_7\\
\end{array}\\
\mathbf{if}\;t_9 < 1:\\
\;\;\;\;\mathsf{max}\left(1, t_10 \cdot t_9\right)\\
\mathbf{else}:\\
\;\;\;\;t_10\\
\end{array}
\end{array}
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (floor w) 2.0))
(t_1
(fabs (* (floor h) (* (floor w) (fma dX.u dY.v (* dX.v (- dY.u)))))))
(t_2 (- (* dX.u dY.v) (* dX.v dY.u)))
(t_3 (fabs t_2))
(t_4 (fabs (* (floor h) (* (floor w) t_2))))
(t_5 (* dX.v (floor h)))
(t_6
(fmax
(pow (hypot (* dX.u (floor w)) t_5) 2.0)
(pow (hypot (* (floor w) dY.u) (* (floor h) dY.v)) 2.0)))
(t_7 (* t_6 (/ 1.0 t_1)))
(t_8
(fmax
(fma (pow dX.u 2.0) t_0 (pow t_5 2.0))
(fma t_0 (pow dY.u 2.0) (* (pow (floor h) 2.0) (pow dY.v 2.0)))))
(t_9
(fmax
(fma
(floor w)
(* (floor w) (* dX.u dX.u))
(* (* (floor h) (floor h)) (* dX.v dX.v)))
(fma
(floor h)
(* (floor h) (* dY.v dY.v))
(* (floor w) (* (floor w) (* dY.u dY.u))))))
(t_10 (sqrt t_9))
(t_11 (> (/ t_9 t_4) (floor maxAniso))))
(if (<
(if (> (/ t_8 (* (floor h) (* (floor w) t_3))) (floor maxAniso))
(/ (sqrt t_8) (floor maxAniso))
(* t_3 (* (* (floor w) (floor h)) (sqrt (/ 1.0 t_8)))))
1.0)
(fmax
1.0
(*
(if t_11 (/ t_10 (floor maxAniso)) (/ t_4 t_10))
(if (> t_7 (floor maxAniso)) (floor maxAniso) t_7)))
(if t_11 (floor maxAniso) (pow (sqrt (/ t_6 t_1)) 2.0)))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = powf(floorf(w), 2.0f);
float t_1 = fabsf((floorf(h) * (floorf(w) * fmaf(dX_46_u, dY_46_v, (dX_46_v * -dY_46_u)))));
float t_2 = (dX_46_u * dY_46_v) - (dX_46_v * dY_46_u);
float t_3 = fabsf(t_2);
float t_4 = fabsf((floorf(h) * (floorf(w) * t_2)));
float t_5 = dX_46_v * floorf(h);
float t_6 = fmaxf(powf(hypotf((dX_46_u * floorf(w)), t_5), 2.0f), powf(hypotf((floorf(w) * dY_46_u), (floorf(h) * dY_46_v)), 2.0f));
float t_7 = t_6 * (1.0f / t_1);
float t_8 = fmaxf(fmaf(powf(dX_46_u, 2.0f), t_0, powf(t_5, 2.0f)), fmaf(t_0, powf(dY_46_u, 2.0f), (powf(floorf(h), 2.0f) * powf(dY_46_v, 2.0f))));
float t_9 = fmaxf(fmaf(floorf(w), (floorf(w) * (dX_46_u * dX_46_u)), ((floorf(h) * floorf(h)) * (dX_46_v * dX_46_v))), fmaf(floorf(h), (floorf(h) * (dY_46_v * dY_46_v)), (floorf(w) * (floorf(w) * (dY_46_u * dY_46_u)))));
float t_10 = sqrtf(t_9);
int t_11 = (t_9 / t_4) > floorf(maxAniso);
float tmp;
if ((t_8 / (floorf(h) * (floorf(w) * t_3))) > floorf(maxAniso)) {
tmp = sqrtf(t_8) / floorf(maxAniso);
} else {
tmp = t_3 * ((floorf(w) * floorf(h)) * sqrtf((1.0f / t_8)));
}
float tmp_3;
if (tmp < 1.0f) {
float tmp_4;
if (t_11) {
tmp_4 = t_10 / floorf(maxAniso);
} else {
tmp_4 = t_4 / t_10;
}
float tmp_5;
if (t_7 > floorf(maxAniso)) {
tmp_5 = floorf(maxAniso);
} else {
tmp_5 = t_7;
}
tmp_3 = fmaxf(1.0f, (tmp_4 * tmp_5));
} else if (t_11) {
tmp_3 = floorf(maxAniso);
} else {
tmp_3 = powf(sqrtf((t_6 / t_1)), 2.0f);
}
return tmp_3;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = floor(w) ^ Float32(2.0) t_1 = abs(Float32(floor(h) * Float32(floor(w) * fma(dX_46_u, dY_46_v, Float32(dX_46_v * Float32(-dY_46_u)))))) t_2 = Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u)) t_3 = abs(t_2) t_4 = abs(Float32(floor(h) * Float32(floor(w) * t_2))) t_5 = Float32(dX_46_v * floor(h)) t_6 = ((hypot(Float32(dX_46_u * floor(w)), t_5) ^ Float32(2.0)) != (hypot(Float32(dX_46_u * floor(w)), t_5) ^ Float32(2.0))) ? (hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v)) ^ Float32(2.0)) : (((hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v)) ^ Float32(2.0)) != (hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v)) ^ Float32(2.0))) ? (hypot(Float32(dX_46_u * floor(w)), t_5) ^ Float32(2.0)) : max((hypot(Float32(dX_46_u * floor(w)), t_5) ^ Float32(2.0)), (hypot(Float32(floor(w) * dY_46_u), Float32(floor(h) * dY_46_v)) ^ Float32(2.0)))) t_7 = Float32(t_6 * Float32(Float32(1.0) / t_1)) t_8 = (fma((dX_46_u ^ Float32(2.0)), t_0, (t_5 ^ Float32(2.0))) != fma((dX_46_u ^ Float32(2.0)), t_0, (t_5 ^ Float32(2.0)))) ? fma(t_0, (dY_46_u ^ Float32(2.0)), Float32((floor(h) ^ Float32(2.0)) * (dY_46_v ^ Float32(2.0)))) : ((fma(t_0, (dY_46_u ^ Float32(2.0)), Float32((floor(h) ^ Float32(2.0)) * (dY_46_v ^ Float32(2.0)))) != fma(t_0, (dY_46_u ^ Float32(2.0)), Float32((floor(h) ^ Float32(2.0)) * (dY_46_v ^ Float32(2.0))))) ? fma((dX_46_u ^ Float32(2.0)), t_0, (t_5 ^ Float32(2.0))) : max(fma((dX_46_u ^ Float32(2.0)), t_0, (t_5 ^ Float32(2.0))), fma(t_0, (dY_46_u ^ Float32(2.0)), Float32((floor(h) ^ Float32(2.0)) * (dY_46_v ^ Float32(2.0)))))) t_9 = (fma(floor(w), Float32(floor(w) * Float32(dX_46_u * dX_46_u)), Float32(Float32(floor(h) * floor(h)) * Float32(dX_46_v * dX_46_v))) != fma(floor(w), Float32(floor(w) * Float32(dX_46_u * dX_46_u)), Float32(Float32(floor(h) * floor(h)) * Float32(dX_46_v * dX_46_v)))) ? fma(floor(h), Float32(floor(h) * Float32(dY_46_v * dY_46_v)), Float32(floor(w) * Float32(floor(w) * Float32(dY_46_u * dY_46_u)))) : ((fma(floor(h), Float32(floor(h) * Float32(dY_46_v * dY_46_v)), Float32(floor(w) * Float32(floor(w) * Float32(dY_46_u * dY_46_u)))) != fma(floor(h), Float32(floor(h) * Float32(dY_46_v * dY_46_v)), Float32(floor(w) * Float32(floor(w) * Float32(dY_46_u * dY_46_u))))) ? fma(floor(w), Float32(floor(w) * Float32(dX_46_u * dX_46_u)), Float32(Float32(floor(h) * floor(h)) * Float32(dX_46_v * dX_46_v))) : max(fma(floor(w), Float32(floor(w) * Float32(dX_46_u * dX_46_u)), Float32(Float32(floor(h) * floor(h)) * Float32(dX_46_v * dX_46_v))), fma(floor(h), Float32(floor(h) * Float32(dY_46_v * dY_46_v)), Float32(floor(w) * Float32(floor(w) * Float32(dY_46_u * dY_46_u)))))) t_10 = sqrt(t_9) t_11 = Float32(t_9 / t_4) > floor(maxAniso) tmp = Float32(0.0) if (Float32(t_8 / Float32(floor(h) * Float32(floor(w) * t_3))) > floor(maxAniso)) tmp = Float32(sqrt(t_8) / floor(maxAniso)); else tmp = Float32(t_3 * Float32(Float32(floor(w) * floor(h)) * sqrt(Float32(Float32(1.0) / t_8)))); end tmp_3 = Float32(0.0) if (tmp < Float32(1.0)) tmp_4 = Float32(0.0) if (t_11) tmp_4 = Float32(t_10 / floor(maxAniso)); else tmp_4 = Float32(t_4 / t_10); end tmp_5 = Float32(0.0) if (t_7 > floor(maxAniso)) tmp_5 = floor(maxAniso); else tmp_5 = t_7; end tmp_3 = (Float32(1.0) != Float32(1.0)) ? Float32(tmp_4 * tmp_5) : ((Float32(tmp_4 * tmp_5) != Float32(tmp_4 * tmp_5)) ? Float32(1.0) : max(Float32(1.0), Float32(tmp_4 * tmp_5))); elseif (t_11) tmp_3 = floor(maxAniso); else tmp_3 = sqrt(Float32(t_6 / t_1)) ^ Float32(2.0); end return tmp_3 end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\left\lfloorw\right\rfloor\right)}^{2}\\
t_1 := \left|\left\lfloorh\right\rfloor \cdot \left(\left\lfloorw\right\rfloor \cdot \mathsf{fma}\left(dX.u, dY.v, dX.v \cdot \left(-dY.u\right)\right)\right)\right|\\
t_2 := dX.u \cdot dY.v - dX.v \cdot dY.u\\
t_3 := \left|t_2\right|\\
t_4 := \left|\left\lfloorh\right\rfloor \cdot \left(\left\lfloorw\right\rfloor \cdot t_2\right)\right|\\
t_5 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_6 := \mathsf{max}\left({\left(\mathsf{hypot}\left(dX.u \cdot \left\lfloorw\right\rfloor, t_5\right)\right)}^{2}, {\left(\mathsf{hypot}\left(\left\lfloorw\right\rfloor \cdot dY.u, \left\lfloorh\right\rfloor \cdot dY.v\right)\right)}^{2}\right)\\
t_7 := t_6 \cdot \frac{1}{t_1}\\
t_8 := \mathsf{max}\left(\mathsf{fma}\left({dX.u}^{2}, t_0, {t_5}^{2}\right), \mathsf{fma}\left(t_0, {dY.u}^{2}, {\left(\left\lfloorh\right\rfloor\right)}^{2} \cdot {dY.v}^{2}\right)\right)\\
t_9 := \mathsf{max}\left(\mathsf{fma}\left(\left\lfloorw\right\rfloor, \left\lfloorw\right\rfloor \cdot \left(dX.u \cdot dX.u\right), \left(\left\lfloorh\right\rfloor \cdot \left\lfloorh\right\rfloor\right) \cdot \left(dX.v \cdot dX.v\right)\right), \mathsf{fma}\left(\left\lfloorh\right\rfloor, \left\lfloorh\right\rfloor \cdot \left(dY.v \cdot dY.v\right), \left\lfloorw\right\rfloor \cdot \left(\left\lfloorw\right\rfloor \cdot \left(dY.u \cdot dY.u\right)\right)\right)\right)\\
t_10 := \sqrt{t_9}\\
t_11 := \frac{t_9}{t_4} > \left\lfloormaxAniso\right\rfloor\\
\mathbf{if}\;\begin{array}{l}
\mathbf{if}\;\frac{t_8}{\left\lfloorh\right\rfloor \cdot \left(\left\lfloorw\right\rfloor \cdot t_3\right)} > \left\lfloormaxAniso\right\rfloor:\\
\;\;\;\;\frac{\sqrt{t_8}}{\left\lfloormaxAniso\right\rfloor}\\
\mathbf{else}:\\
\;\;\;\;t_3 \cdot \left(\left(\left\lfloorw\right\rfloor \cdot \left\lfloorh\right\rfloor\right) \cdot \sqrt{\frac{1}{t_8}}\right)\\
\end{array} < 1:\\
\;\;\;\;\mathsf{max}\left(1, \begin{array}{l}
\mathbf{if}\;t_11:\\
\;\;\;\;\frac{t_10}{\left\lfloormaxAniso\right\rfloor}\\
\mathbf{else}:\\
\;\;\;\;\frac{t_4}{t_10}\\
\end{array} \cdot \begin{array}{l}
\mathbf{if}\;t_7 > \left\lfloormaxAniso\right\rfloor:\\
\;\;\;\;\left\lfloormaxAniso\right\rfloor\\
\mathbf{else}:\\
\;\;\;\;t_7\\
\end{array}\right)\\
\mathbf{elif}\;t_11:\\
\;\;\;\;\left\lfloormaxAniso\right\rfloor\\
\mathbf{else}:\\
\;\;\;\;{\left(\sqrt{\frac{t_6}{t_1}}\right)}^{2}\\
\end{array}
\end{array}
Initial program 98.4%
Simplified98.4%
Applied egg-rr98.4%
Taylor expanded in w around 0 98.4%
Simplified98.8%
Applied egg-rr98.8%
Applied egg-rr98.8%
Final simplification98.8%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dX.v (floor h)))
(t_1 (* (floor w) dY.u))
(t_2 (* (floor h) dY.v))
(t_3 (* dX.u (floor w)))
(t_4 (fmax (+ (* t_3 t_3) (* t_0 t_0)) (+ (* t_1 t_1) (* t_2 t_2))))
(t_5 (sqrt t_4))
(t_6 (/ t_5 (floor maxAniso)))
(t_7 (fabs (- (* t_3 t_2) (* t_0 t_1))))
(t_8 (/ t_4 t_7))
(t_9 (fmax (pow (hypot t_3 t_0) 2.0) (pow (hypot t_1 t_2) 2.0)))
(t_10 (> t_8 (floor maxAniso)))
(t_11 (* (floor h) (fabs (- (* dX.u dY.v) (* dX.v dY.u)))))
(t_12 (> (/ t_9 (* (floor w) t_11)) (floor maxAniso))))
(if (< (if t_12 t_6 (* (floor w) (/ t_11 (sqrt t_9)))) 1.0)
(fmax 1.0 (* (if t_12 (floor maxAniso) t_8) (if t_10 t_6 (/ t_7 t_5))))
(if t_10
(floor maxAniso)
(pow
(sqrt
(/
t_9
(fabs (- (* (floor h) (* dX.v t_1)) (* (floor w) (* dX.u t_2))))))
2.0)))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = dX_46_v * floorf(h);
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(h) * dY_46_v;
float t_3 = dX_46_u * floorf(w);
float t_4 = fmaxf(((t_3 * t_3) + (t_0 * t_0)), ((t_1 * t_1) + (t_2 * t_2)));
float t_5 = sqrtf(t_4);
float t_6 = t_5 / floorf(maxAniso);
float t_7 = fabsf(((t_3 * t_2) - (t_0 * t_1)));
float t_8 = t_4 / t_7;
float t_9 = fmaxf(powf(hypotf(t_3, t_0), 2.0f), powf(hypotf(t_1, t_2), 2.0f));
int t_10 = t_8 > floorf(maxAniso);
float t_11 = floorf(h) * fabsf(((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u)));
int t_12 = (t_9 / (floorf(w) * t_11)) > floorf(maxAniso);
float tmp;
if (t_12) {
tmp = t_6;
} else {
tmp = floorf(w) * (t_11 / sqrtf(t_9));
}
float tmp_3;
if (tmp < 1.0f) {
float tmp_4;
if (t_12) {
tmp_4 = floorf(maxAniso);
} else {
tmp_4 = t_8;
}
float tmp_5;
if (t_10) {
tmp_5 = t_6;
} else {
tmp_5 = t_7 / t_5;
}
tmp_3 = fmaxf(1.0f, (tmp_4 * tmp_5));
} else if (t_10) {
tmp_3 = floorf(maxAniso);
} else {
tmp_3 = powf(sqrtf((t_9 / fabsf(((floorf(h) * (dX_46_v * t_1)) - (floorf(w) * (dX_46_u * t_2)))))), 2.0f);
}
return tmp_3;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(dX_46_v * floor(h)) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(floor(h) * dY_46_v) t_3 = Float32(dX_46_u * floor(w)) t_4 = (Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) != Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0))) ? Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) : ((Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) != Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2))) ? Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) : max(Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)), Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)))) t_5 = sqrt(t_4) t_6 = Float32(t_5 / floor(maxAniso)) t_7 = abs(Float32(Float32(t_3 * t_2) - Float32(t_0 * t_1))) t_8 = Float32(t_4 / t_7) t_9 = ((hypot(t_3, t_0) ^ Float32(2.0)) != (hypot(t_3, t_0) ^ Float32(2.0))) ? (hypot(t_1, t_2) ^ Float32(2.0)) : (((hypot(t_1, t_2) ^ Float32(2.0)) != (hypot(t_1, t_2) ^ Float32(2.0))) ? (hypot(t_3, t_0) ^ Float32(2.0)) : max((hypot(t_3, t_0) ^ Float32(2.0)), (hypot(t_1, t_2) ^ Float32(2.0)))) t_10 = t_8 > floor(maxAniso) t_11 = Float32(floor(h) * abs(Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u)))) t_12 = Float32(t_9 / Float32(floor(w) * t_11)) > floor(maxAniso) tmp = Float32(0.0) if (t_12) tmp = t_6; else tmp = Float32(floor(w) * Float32(t_11 / sqrt(t_9))); end tmp_3 = Float32(0.0) if (tmp < Float32(1.0)) tmp_4 = Float32(0.0) if (t_12) tmp_4 = floor(maxAniso); else tmp_4 = t_8; end tmp_5 = Float32(0.0) if (t_10) tmp_5 = t_6; else tmp_5 = Float32(t_7 / t_5); end tmp_3 = (Float32(1.0) != Float32(1.0)) ? Float32(tmp_4 * tmp_5) : ((Float32(tmp_4 * tmp_5) != Float32(tmp_4 * tmp_5)) ? Float32(1.0) : max(Float32(1.0), Float32(tmp_4 * tmp_5))); elseif (t_10) tmp_3 = floor(maxAniso); else tmp_3 = sqrt(Float32(t_9 / abs(Float32(Float32(floor(h) * Float32(dX_46_v * t_1)) - Float32(floor(w) * Float32(dX_46_u * t_2)))))) ^ Float32(2.0); end return tmp_3 end
function tmp_7 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = dX_46_v * floor(h); t_1 = floor(w) * dY_46_u; t_2 = floor(h) * dY_46_v; t_3 = dX_46_u * floor(w); t_4 = max(((t_3 * t_3) + (t_0 * t_0)), ((t_1 * t_1) + (t_2 * t_2))); t_5 = sqrt(t_4); t_6 = t_5 / floor(maxAniso); t_7 = abs(((t_3 * t_2) - (t_0 * t_1))); t_8 = t_4 / t_7; t_9 = max((hypot(t_3, t_0) ^ single(2.0)), (hypot(t_1, t_2) ^ single(2.0))); t_10 = t_8 > floor(maxAniso); t_11 = floor(h) * abs(((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))); t_12 = (t_9 / (floor(w) * t_11)) > floor(maxAniso); tmp = single(0.0); if (t_12) tmp = t_6; else tmp = floor(w) * (t_11 / sqrt(t_9)); end tmp_4 = single(0.0); if (tmp < single(1.0)) tmp_5 = single(0.0); if (t_12) tmp_5 = floor(maxAniso); else tmp_5 = t_8; end tmp_6 = single(0.0); if (t_10) tmp_6 = t_6; else tmp_6 = t_7 / t_5; end tmp_4 = max(single(1.0), (tmp_5 * tmp_6)); elseif (t_10) tmp_4 = floor(maxAniso); else tmp_4 = sqrt((t_9 / abs(((floor(h) * (dX_46_v * t_1)) - (floor(w) * (dX_46_u * t_2)))))) ^ single(2.0); end tmp_7 = tmp_4; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_3 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_4 := \mathsf{max}\left(t_3 \cdot t_3 + t_0 \cdot t_0, t_1 \cdot t_1 + t_2 \cdot t_2\right)\\
t_5 := \sqrt{t_4}\\
t_6 := \frac{t_5}{\left\lfloormaxAniso\right\rfloor}\\
t_7 := \left|t_3 \cdot t_2 - t_0 \cdot t_1\right|\\
t_8 := \frac{t_4}{t_7}\\
t_9 := \mathsf{max}\left({\left(\mathsf{hypot}\left(t_3, t_0\right)\right)}^{2}, {\left(\mathsf{hypot}\left(t_1, t_2\right)\right)}^{2}\right)\\
t_10 := t_8 > \left\lfloormaxAniso\right\rfloor\\
t_11 := \left\lfloorh\right\rfloor \cdot \left|dX.u \cdot dY.v - dX.v \cdot dY.u\right|\\
t_12 := \frac{t_9}{\left\lfloorw\right\rfloor \cdot t_11} > \left\lfloormaxAniso\right\rfloor\\
\mathbf{if}\;\begin{array}{l}
\mathbf{if}\;t_12:\\
\;\;\;\;t_6\\
\mathbf{else}:\\
\;\;\;\;\left\lfloorw\right\rfloor \cdot \frac{t_11}{\sqrt{t_9}}\\
\end{array} < 1:\\
\;\;\;\;\mathsf{max}\left(1, \begin{array}{l}
\mathbf{if}\;t_12:\\
\;\;\;\;\left\lfloormaxAniso\right\rfloor\\
\mathbf{else}:\\
\;\;\;\;t_8\\
\end{array} \cdot \begin{array}{l}
\mathbf{if}\;t_10:\\
\;\;\;\;t_6\\
\mathbf{else}:\\
\;\;\;\;\frac{t_7}{t_5}\\
\end{array}\right)\\
\mathbf{elif}\;t_10:\\
\;\;\;\;\left\lfloormaxAniso\right\rfloor\\
\mathbf{else}:\\
\;\;\;\;{\left(\sqrt{\frac{t_9}{\left|\left\lfloorh\right\rfloor \cdot \left(dX.v \cdot t_1\right) - \left\lfloorw\right\rfloor \cdot \left(dX.u \cdot t_2\right)\right|}}\right)}^{2}\\
\end{array}
\end{array}
Initial program 98.4%
Applied egg-rr98.4%
Simplified98.6%
expm1-log1p-u98.6%
expm1-udef98.6%
Applied egg-rr98.6%
Simplified98.6%
expm1-log1p-u98.6%
expm1-udef98.6%
Applied egg-rr98.6%
Simplified98.6%
add-sqr-sqrt98.6%
pow298.6%
Applied egg-rr98.6%
Final simplification98.6%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dX.v (floor h)))
(t_1 (* (floor w) dY.u))
(t_2 (* (floor h) dY.v))
(t_3 (* dX.u (floor w)))
(t_4 (fmax (+ (* t_3 t_3) (* t_0 t_0)) (+ (* t_1 t_1) (* t_2 t_2))))
(t_5 (sqrt t_4))
(t_6 (/ t_5 (floor maxAniso)))
(t_7 (fabs (- (* t_3 t_2) (* t_0 t_1))))
(t_8 (/ t_4 t_7))
(t_9 (> t_8 (floor maxAniso)))
(t_10 (fmax (pow (hypot t_3 t_0) 2.0) (pow (hypot t_1 t_2) 2.0)))
(t_11 (* (floor h) (fabs (- (* dX.u dY.v) (* dX.v dY.u)))))
(t_12 (/ t_10 (* (floor w) t_11)))
(t_13 (> t_12 (floor maxAniso))))
(if (< (if t_13 t_6 (* (floor w) (/ t_11 (sqrt t_10)))) 1.0)
(fmax 1.0 (* (if t_9 t_6 (/ t_7 t_5)) (if t_13 (floor maxAniso) t_12)))
(if t_9 (floor maxAniso) t_8))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = dX_46_v * floorf(h);
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(h) * dY_46_v;
float t_3 = dX_46_u * floorf(w);
float t_4 = fmaxf(((t_3 * t_3) + (t_0 * t_0)), ((t_1 * t_1) + (t_2 * t_2)));
float t_5 = sqrtf(t_4);
float t_6 = t_5 / floorf(maxAniso);
float t_7 = fabsf(((t_3 * t_2) - (t_0 * t_1)));
float t_8 = t_4 / t_7;
int t_9 = t_8 > floorf(maxAniso);
float t_10 = fmaxf(powf(hypotf(t_3, t_0), 2.0f), powf(hypotf(t_1, t_2), 2.0f));
float t_11 = floorf(h) * fabsf(((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u)));
float t_12 = t_10 / (floorf(w) * t_11);
int t_13 = t_12 > floorf(maxAniso);
float tmp;
if (t_13) {
tmp = t_6;
} else {
tmp = floorf(w) * (t_11 / sqrtf(t_10));
}
float tmp_3;
if (tmp < 1.0f) {
float tmp_4;
if (t_9) {
tmp_4 = t_6;
} else {
tmp_4 = t_7 / t_5;
}
float tmp_5;
if (t_13) {
tmp_5 = floorf(maxAniso);
} else {
tmp_5 = t_12;
}
tmp_3 = fmaxf(1.0f, (tmp_4 * tmp_5));
} else if (t_9) {
tmp_3 = floorf(maxAniso);
} else {
tmp_3 = t_8;
}
return tmp_3;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(dX_46_v * floor(h)) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(floor(h) * dY_46_v) t_3 = Float32(dX_46_u * floor(w)) t_4 = (Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) != Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0))) ? Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) : ((Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) != Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2))) ? Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) : max(Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)), Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)))) t_5 = sqrt(t_4) t_6 = Float32(t_5 / floor(maxAniso)) t_7 = abs(Float32(Float32(t_3 * t_2) - Float32(t_0 * t_1))) t_8 = Float32(t_4 / t_7) t_9 = t_8 > floor(maxAniso) t_10 = ((hypot(t_3, t_0) ^ Float32(2.0)) != (hypot(t_3, t_0) ^ Float32(2.0))) ? (hypot(t_1, t_2) ^ Float32(2.0)) : (((hypot(t_1, t_2) ^ Float32(2.0)) != (hypot(t_1, t_2) ^ Float32(2.0))) ? (hypot(t_3, t_0) ^ Float32(2.0)) : max((hypot(t_3, t_0) ^ Float32(2.0)), (hypot(t_1, t_2) ^ Float32(2.0)))) t_11 = Float32(floor(h) * abs(Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u)))) t_12 = Float32(t_10 / Float32(floor(w) * t_11)) t_13 = t_12 > floor(maxAniso) tmp = Float32(0.0) if (t_13) tmp = t_6; else tmp = Float32(floor(w) * Float32(t_11 / sqrt(t_10))); end tmp_3 = Float32(0.0) if (tmp < Float32(1.0)) tmp_4 = Float32(0.0) if (t_9) tmp_4 = t_6; else tmp_4 = Float32(t_7 / t_5); end tmp_5 = Float32(0.0) if (t_13) tmp_5 = floor(maxAniso); else tmp_5 = t_12; end tmp_3 = (Float32(1.0) != Float32(1.0)) ? Float32(tmp_4 * tmp_5) : ((Float32(tmp_4 * tmp_5) != Float32(tmp_4 * tmp_5)) ? Float32(1.0) : max(Float32(1.0), Float32(tmp_4 * tmp_5))); elseif (t_9) tmp_3 = floor(maxAniso); else tmp_3 = t_8; end return tmp_3 end
function tmp_7 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = dX_46_v * floor(h); t_1 = floor(w) * dY_46_u; t_2 = floor(h) * dY_46_v; t_3 = dX_46_u * floor(w); t_4 = max(((t_3 * t_3) + (t_0 * t_0)), ((t_1 * t_1) + (t_2 * t_2))); t_5 = sqrt(t_4); t_6 = t_5 / floor(maxAniso); t_7 = abs(((t_3 * t_2) - (t_0 * t_1))); t_8 = t_4 / t_7; t_9 = t_8 > floor(maxAniso); t_10 = max((hypot(t_3, t_0) ^ single(2.0)), (hypot(t_1, t_2) ^ single(2.0))); t_11 = floor(h) * abs(((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))); t_12 = t_10 / (floor(w) * t_11); t_13 = t_12 > floor(maxAniso); tmp = single(0.0); if (t_13) tmp = t_6; else tmp = floor(w) * (t_11 / sqrt(t_10)); end tmp_4 = single(0.0); if (tmp < single(1.0)) tmp_5 = single(0.0); if (t_9) tmp_5 = t_6; else tmp_5 = t_7 / t_5; end tmp_6 = single(0.0); if (t_13) tmp_6 = floor(maxAniso); else tmp_6 = t_12; end tmp_4 = max(single(1.0), (tmp_5 * tmp_6)); elseif (t_9) tmp_4 = floor(maxAniso); else tmp_4 = t_8; end tmp_7 = tmp_4; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_3 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_4 := \mathsf{max}\left(t_3 \cdot t_3 + t_0 \cdot t_0, t_1 \cdot t_1 + t_2 \cdot t_2\right)\\
t_5 := \sqrt{t_4}\\
t_6 := \frac{t_5}{\left\lfloormaxAniso\right\rfloor}\\
t_7 := \left|t_3 \cdot t_2 - t_0 \cdot t_1\right|\\
t_8 := \frac{t_4}{t_7}\\
t_9 := t_8 > \left\lfloormaxAniso\right\rfloor\\
t_10 := \mathsf{max}\left({\left(\mathsf{hypot}\left(t_3, t_0\right)\right)}^{2}, {\left(\mathsf{hypot}\left(t_1, t_2\right)\right)}^{2}\right)\\
t_11 := \left\lfloorh\right\rfloor \cdot \left|dX.u \cdot dY.v - dX.v \cdot dY.u\right|\\
t_12 := \frac{t_10}{\left\lfloorw\right\rfloor \cdot t_11}\\
t_13 := t_12 > \left\lfloormaxAniso\right\rfloor\\
\mathbf{if}\;\begin{array}{l}
\mathbf{if}\;t_13:\\
\;\;\;\;t_6\\
\mathbf{else}:\\
\;\;\;\;\left\lfloorw\right\rfloor \cdot \frac{t_11}{\sqrt{t_10}}\\
\end{array} < 1:\\
\;\;\;\;\mathsf{max}\left(1, \begin{array}{l}
\mathbf{if}\;t_9:\\
\;\;\;\;t_6\\
\mathbf{else}:\\
\;\;\;\;\frac{t_7}{t_5}\\
\end{array} \cdot \begin{array}{l}
\mathbf{if}\;t_13:\\
\;\;\;\;\left\lfloormaxAniso\right\rfloor\\
\mathbf{else}:\\
\;\;\;\;t_12\\
\end{array}\right)\\
\mathbf{elif}\;t_9:\\
\;\;\;\;\left\lfloormaxAniso\right\rfloor\\
\mathbf{else}:\\
\;\;\;\;t_8\\
\end{array}
\end{array}
Initial program 98.4%
Applied egg-rr98.4%
Simplified98.6%
expm1-log1p-u98.6%
expm1-udef98.6%
Applied egg-rr98.6%
Simplified98.6%
expm1-log1p-u98.6%
expm1-udef98.6%
Applied egg-rr98.6%
Simplified98.6%
expm1-log1p-u98.6%
expm1-udef98.6%
Applied egg-rr98.6%
Simplified98.6%
Final simplification98.6%
herbie shell --seed 2023310
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:name "Anisotropic x16 LOD (ratio of anisotropy)"
:precision binary32
:pre (and (and (and (and (and (and (and (<= 1.0 w) (<= w 16384.0)) (and (<= 1.0 h) (<= h 16384.0))) (and (<= 1e-20 (fabs dX.u)) (<= (fabs dX.u) 1e+20))) (and (<= 1e-20 (fabs dX.v)) (<= (fabs dX.v) 1e+20))) (and (<= 1e-20 (fabs dY.u)) (<= (fabs dY.u) 1e+20))) (and (<= 1e-20 (fabs dY.v)) (<= (fabs dY.v) 1e+20))) (== maxAniso 16.0))
(if (< (if (> (/ (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v)))) (fabs (- (* (* (floor w) dX.u) (* (floor h) dY.v)) (* (* (floor h) dX.v) (* (floor w) dY.u))))) (floor maxAniso)) (/ (sqrt (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v))))) (floor maxAniso)) (/ (fabs (- (* (* (floor w) dX.u) (* (floor h) dY.v)) (* (* (floor h) dX.v) (* (floor w) dY.u)))) (sqrt (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v))))))) 1.0) (fmax 1.0 (* (if (> (/ (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v)))) (fabs (- (* (* (floor w) dX.u) (* (floor h) dY.v)) (* (* (floor h) dX.v) (* (floor w) dY.u))))) (floor maxAniso)) (floor maxAniso) (/ (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v)))) (fabs (- (* (* (floor w) dX.u) (* (floor h) dY.v)) (* (* (floor h) dX.v) (* (floor w) dY.u)))))) (if (> (/ (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v)))) (fabs (- (* (* (floor w) dX.u) (* (floor h) dY.v)) (* (* (floor h) dX.v) (* (floor w) dY.u))))) (floor maxAniso)) (/ (sqrt (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v))))) (floor maxAniso)) (/ (fabs (- (* (* (floor w) dX.u) (* (floor h) dY.v)) (* (* (floor h) dX.v) (* (floor w) dY.u)))) (sqrt (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v))))))))) (if (> (/ (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v)))) (fabs (- (* (* (floor w) dX.u) (* (floor h) dY.v)) (* (* (floor h) dX.v) (* (floor w) dY.u))))) (floor maxAniso)) (floor maxAniso) (/ (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v)))) (fabs (- (* (* (floor w) dX.u) (* (floor h) dY.v)) (* (* (floor h) dX.v) (* (floor w) dY.u))))))))