
(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 = fmax(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 = fmax(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\lfloor h\right\rfloor \cdot dX.v\\
t_1 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_2 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_3 := \left\lfloor w\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\lfloor maxAniso\right\rfloor \\
t_9 := \begin{array}{l}
\mathbf{if}\;t\_8:\\
\;\;\;\;\frac{t\_5}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_6}{t\_5}\\
\end{array}\\
t_10 := \begin{array}{l}
\mathbf{if}\;t\_8:\\
\;\;\;\;\left\lfloor maxAniso\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}
Herbie found 4 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 = fmax(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 = fmax(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\lfloor h\right\rfloor \cdot dX.v\\
t_1 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_2 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_3 := \left\lfloor w\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\lfloor maxAniso\right\rfloor \\
t_9 := \begin{array}{l}
\mathbf{if}\;t\_8:\\
\;\;\;\;\frac{t\_5}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_6}{t\_5}\\
\end{array}\\
t_10 := \begin{array}{l}
\mathbf{if}\;t\_8:\\
\;\;\;\;\left\lfloor maxAniso\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
(fabs (* (* (floor h) (floor w)) (- (* dY.u dX.v) (* dY.v dX.u)))))
(t_1 (* (floor w) dX.u))
(t_2 (+ (pow (* (floor h) dY.v) 2.0) (pow (* (floor w) dY.u) 2.0)))
(t_3 (fmax (+ (pow (* (floor h) dX.v) 2.0) (pow t_1 2.0)) t_2))
(t_4 (/ t_3 t_0))
(t_5 (> t_4 (floor maxAniso)))
(t_6 (sqrt t_3))
(t_7 (if t_5 (/ t_6 (floor maxAniso)) (/ t_0 t_6))))
(if (< t_7 1.0)
(fmax 1.0 (* (if t_5 (floor maxAniso) t_4) t_7))
(if t_5
(floor maxAniso)
(/
(fmax
(+
(pow (* (exp (* (log (floor h)) 1.0)) dX.v) 2.0)
(exp (* (log t_1) 2.0)))
t_2)
t_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 = fabsf(((floorf(h) * floorf(w)) * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u))));
float t_1 = floorf(w) * dX_46_u;
float t_2 = powf((floorf(h) * dY_46_v), 2.0f) + powf((floorf(w) * dY_46_u), 2.0f);
float t_3 = fmaxf((powf((floorf(h) * dX_46_v), 2.0f) + powf(t_1, 2.0f)), t_2);
float t_4 = t_3 / t_0;
int t_5 = t_4 > floorf(maxAniso);
float t_6 = sqrtf(t_3);
float tmp;
if (t_5) {
tmp = t_6 / floorf(maxAniso);
} else {
tmp = t_0 / t_6;
}
float t_7 = tmp;
float tmp_2;
if (t_7 < 1.0f) {
float tmp_3;
if (t_5) {
tmp_3 = floorf(maxAniso);
} else {
tmp_3 = t_4;
}
tmp_2 = fmaxf(1.0f, (tmp_3 * t_7));
} else if (t_5) {
tmp_2 = floorf(maxAniso);
} else {
tmp_2 = fmaxf((powf((expf((logf(floorf(h)) * 1.0f)) * dX_46_v), 2.0f) + expf((logf(t_1) * 2.0f))), t_2) / t_0;
}
return tmp_2;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = abs(Float32(Float32(floor(h) * floor(w)) * Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_46_u)))) t_1 = Float32(floor(w) * dX_46_u) t_2 = Float32((Float32(floor(h) * dY_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dY_46_u) ^ Float32(2.0))) t_3 = fmax(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (t_1 ^ Float32(2.0))), t_2) t_4 = Float32(t_3 / t_0) t_5 = t_4 > floor(maxAniso) t_6 = sqrt(t_3) tmp = Float32(0.0) if (t_5) tmp = Float32(t_6 / floor(maxAniso)); else tmp = Float32(t_0 / t_6); end t_7 = tmp tmp_2 = Float32(0.0) if (t_7 < Float32(1.0)) tmp_3 = Float32(0.0) if (t_5) tmp_3 = floor(maxAniso); else tmp_3 = t_4; end tmp_2 = fmax(Float32(1.0), Float32(tmp_3 * t_7)); elseif (t_5) tmp_2 = floor(maxAniso); else tmp_2 = Float32(fmax(Float32((Float32(exp(Float32(log(floor(h)) * Float32(1.0))) * dX_46_v) ^ Float32(2.0)) + exp(Float32(log(t_1) * Float32(2.0)))), t_2) / t_0); end return tmp_2 end
function tmp_5 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = abs(((floor(h) * floor(w)) * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)))); t_1 = floor(w) * dX_46_u; t_2 = ((floor(h) * dY_46_v) ^ single(2.0)) + ((floor(w) * dY_46_u) ^ single(2.0)); t_3 = max((((floor(h) * dX_46_v) ^ single(2.0)) + (t_1 ^ single(2.0))), t_2); t_4 = t_3 / t_0; t_5 = t_4 > floor(maxAniso); t_6 = sqrt(t_3); tmp = single(0.0); if (t_5) tmp = t_6 / floor(maxAniso); else tmp = t_0 / t_6; end t_7 = tmp; tmp_3 = single(0.0); if (t_7 < single(1.0)) tmp_4 = single(0.0); if (t_5) tmp_4 = floor(maxAniso); else tmp_4 = t_4; end tmp_3 = max(single(1.0), (tmp_4 * t_7)); elseif (t_5) tmp_3 = floor(maxAniso); else tmp_3 = max((((exp((log(floor(h)) * single(1.0))) * dX_46_v) ^ single(2.0)) + exp((log(t_1) * single(2.0)))), t_2) / t_0; end tmp_5 = tmp_3; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left|\left(\left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \right) \cdot \left(dY.u \cdot dX.v - dY.v \cdot dX.u\right)\right|\\
t_1 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_2 := {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2} + {\left(\left\lfloor w\right\rfloor \cdot dY.u\right)}^{2}\\
t_3 := \mathsf{max}\left({\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + {t\_1}^{2}, t\_2\right)\\
t_4 := \frac{t\_3}{t\_0}\\
t_5 := t\_4 > \left\lfloor maxAniso\right\rfloor \\
t_6 := \sqrt{t\_3}\\
t_7 := \begin{array}{l}
\mathbf{if}\;t\_5:\\
\;\;\;\;\frac{t\_6}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_0}{t\_6}\\
\end{array}\\
\mathbf{if}\;t\_7 < 1:\\
\;\;\;\;\mathsf{max}\left(1, \begin{array}{l}
\mathbf{if}\;t\_5:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;t\_4\\
\end{array} \cdot t\_7\right)\\
\mathbf{elif}\;t\_5:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;\frac{\mathsf{max}\left({\left(e^{\log \left(\left\lfloor h\right\rfloor \right) \cdot 1} \cdot dX.v\right)}^{2} + e^{\log t\_1 \cdot 2}, t\_2\right)}{t\_0}\\
\end{array}
\end{array}
Initial program 97.6%
Applied rewrites97.6%
lift-floor.f32N/A
unpow1N/A
pow-to-expN/A
lower-exp.f32N/A
lower-*.f32N/A
lower-log.f32N/A
lift-floor.f3297.6
Applied rewrites97.6%
lift-pow.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
pow-to-expN/A
lower-exp.f32N/A
lower-*.f32N/A
*-commutativeN/A
lower-log.f32N/A
*-commutativeN/A
lift-floor.f32N/A
lift-*.f3297.1
Applied rewrites97.1%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0
(fabs (* (* (floor h) (floor w)) (- (* dY.u dX.v) (* dY.v dX.u)))))
(t_1 (pow (* (floor w) dX.u) 2.0))
(t_2 (+ (pow (* (floor h) dX.v) 2.0) t_1))
(t_3 (pow (* (floor w) dY.u) 2.0))
(t_4 (+ (pow (* (floor h) dY.v) 2.0) t_3))
(t_5 (fmax t_2 t_4))
(t_6 (/ t_5 t_0))
(t_7 (sqrt t_5))
(t_8 (/ t_7 (floor maxAniso)))
(t_9 (> t_6 (floor maxAniso)))
(t_10 (/ t_0 t_7)))
(if (< (if t_9 t_8 t_10) 1.0)
(fmax
1.0
(*
(if t_9 (floor maxAniso) t_6)
(if (> (/ (fmax t_2 t_3) t_0) (floor maxAniso)) t_8 t_10)))
(if t_9
(floor maxAniso)
(/
(fmax (+ (pow (* (exp (* (log (floor h)) 1.0)) dX.v) 2.0) t_1) t_4)
t_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 = fabsf(((floorf(h) * floorf(w)) * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u))));
float t_1 = powf((floorf(w) * dX_46_u), 2.0f);
float t_2 = powf((floorf(h) * dX_46_v), 2.0f) + t_1;
float t_3 = powf((floorf(w) * dY_46_u), 2.0f);
float t_4 = powf((floorf(h) * dY_46_v), 2.0f) + t_3;
float t_5 = fmaxf(t_2, t_4);
float t_6 = t_5 / t_0;
float t_7 = sqrtf(t_5);
float t_8 = t_7 / floorf(maxAniso);
int t_9 = t_6 > floorf(maxAniso);
float t_10 = t_0 / t_7;
float tmp;
if (t_9) {
tmp = t_8;
} else {
tmp = t_10;
}
float tmp_3;
if (tmp < 1.0f) {
float tmp_4;
if (t_9) {
tmp_4 = floorf(maxAniso);
} else {
tmp_4 = t_6;
}
float tmp_5;
if ((fmaxf(t_2, t_3) / t_0) > floorf(maxAniso)) {
tmp_5 = t_8;
} else {
tmp_5 = t_10;
}
tmp_3 = fmaxf(1.0f, (tmp_4 * tmp_5));
} else if (t_9) {
tmp_3 = floorf(maxAniso);
} else {
tmp_3 = fmaxf((powf((expf((logf(floorf(h)) * 1.0f)) * dX_46_v), 2.0f) + t_1), t_4) / t_0;
}
return tmp_3;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = abs(Float32(Float32(floor(h) * floor(w)) * Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_46_u)))) t_1 = Float32(floor(w) * dX_46_u) ^ Float32(2.0) t_2 = Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + t_1) t_3 = Float32(floor(w) * dY_46_u) ^ Float32(2.0) t_4 = Float32((Float32(floor(h) * dY_46_v) ^ Float32(2.0)) + t_3) t_5 = fmax(t_2, t_4) t_6 = Float32(t_5 / t_0) t_7 = sqrt(t_5) t_8 = Float32(t_7 / floor(maxAniso)) t_9 = t_6 > floor(maxAniso) t_10 = Float32(t_0 / t_7) tmp = Float32(0.0) if (t_9) tmp = t_8; else tmp = t_10; end tmp_3 = Float32(0.0) if (tmp < Float32(1.0)) tmp_4 = Float32(0.0) if (t_9) tmp_4 = floor(maxAniso); else tmp_4 = t_6; end tmp_5 = Float32(0.0) if (Float32(fmax(t_2, t_3) / t_0) > floor(maxAniso)) tmp_5 = t_8; else tmp_5 = t_10; end tmp_3 = fmax(Float32(1.0), Float32(tmp_4 * tmp_5)); elseif (t_9) tmp_3 = floor(maxAniso); else tmp_3 = Float32(fmax(Float32((Float32(exp(Float32(log(floor(h)) * Float32(1.0))) * dX_46_v) ^ Float32(2.0)) + t_1), t_4) / t_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 = abs(((floor(h) * floor(w)) * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)))); t_1 = (floor(w) * dX_46_u) ^ single(2.0); t_2 = ((floor(h) * dX_46_v) ^ single(2.0)) + t_1; t_3 = (floor(w) * dY_46_u) ^ single(2.0); t_4 = ((floor(h) * dY_46_v) ^ single(2.0)) + t_3; t_5 = max(t_2, t_4); t_6 = t_5 / t_0; t_7 = sqrt(t_5); t_8 = t_7 / floor(maxAniso); t_9 = t_6 > floor(maxAniso); t_10 = t_0 / t_7; tmp = single(0.0); if (t_9) tmp = t_8; else tmp = t_10; end tmp_4 = single(0.0); if (tmp < single(1.0)) tmp_5 = single(0.0); if (t_9) tmp_5 = floor(maxAniso); else tmp_5 = t_6; end tmp_6 = single(0.0); if ((max(t_2, t_3) / t_0) > floor(maxAniso)) tmp_6 = t_8; else tmp_6 = t_10; end tmp_4 = max(single(1.0), (tmp_5 * tmp_6)); elseif (t_9) tmp_4 = floor(maxAniso); else tmp_4 = max((((exp((log(floor(h)) * single(1.0))) * dX_46_v) ^ single(2.0)) + t_1), t_4) / t_0; end tmp_7 = tmp_4; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left|\left(\left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \right) \cdot \left(dY.u \cdot dX.v - dY.v \cdot dX.u\right)\right|\\
t_1 := {\left(\left\lfloor w\right\rfloor \cdot dX.u\right)}^{2}\\
t_2 := {\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + t\_1\\
t_3 := {\left(\left\lfloor w\right\rfloor \cdot dY.u\right)}^{2}\\
t_4 := {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2} + t\_3\\
t_5 := \mathsf{max}\left(t\_2, t\_4\right)\\
t_6 := \frac{t\_5}{t\_0}\\
t_7 := \sqrt{t\_5}\\
t_8 := \frac{t\_7}{\left\lfloor maxAniso\right\rfloor }\\
t_9 := t\_6 > \left\lfloor maxAniso\right\rfloor \\
t_10 := \frac{t\_0}{t\_7}\\
\mathbf{if}\;\begin{array}{l}
\mathbf{if}\;t\_9:\\
\;\;\;\;t\_8\\
\mathbf{else}:\\
\;\;\;\;t\_10\\
\end{array} < 1:\\
\;\;\;\;\mathsf{max}\left(1, \begin{array}{l}
\mathbf{if}\;t\_9:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;t\_6\\
\end{array} \cdot \begin{array}{l}
\mathbf{if}\;\frac{\mathsf{max}\left(t\_2, t\_3\right)}{t\_0} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;t\_8\\
\mathbf{else}:\\
\;\;\;\;t\_10\\
\end{array}\right)\\
\mathbf{elif}\;t\_9:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;\frac{\mathsf{max}\left({\left(e^{\log \left(\left\lfloor h\right\rfloor \right) \cdot 1} \cdot dX.v\right)}^{2} + t\_1, t\_4\right)}{t\_0}\\
\end{array}
\end{array}
Initial program 97.6%
Applied rewrites97.6%
lift-floor.f32N/A
unpow1N/A
pow-to-expN/A
lower-exp.f32N/A
lower-*.f32N/A
lower-log.f32N/A
lift-floor.f3297.6
Applied rewrites97.6%
Taylor expanded in dY.u around inf
*-commutativeN/A
unpow-prod-downN/A
lift-floor.f32N/A
lift-*.f32N/A
lift-pow.f3297.5
Applied rewrites97.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) (floor w)))
(t_1 (- (* dY.u dX.v) (* dY.v dX.u)))
(t_2 (fabs (* t_0 t_1)))
(t_3 (pow (* (floor h) dY.v) 2.0))
(t_4 (sqrt (* (* t_1 (floor w)) (floor h))))
(t_5 (+ (pow (* (floor h) dX.v) 2.0) (pow (* (floor w) dX.u) 2.0)))
(t_6 (pow (* (floor w) dY.u) 2.0))
(t_7 (fmax t_5 (+ t_3 t_6)))
(t_8 (sqrt t_7))
(t_9 (/ t_8 (floor maxAniso)))
(t_10 (> (/ t_7 t_2) (floor maxAniso))))
(if (< (if t_10 t_9 (/ (fabs (* t_0 (* dY.u dX.v))) t_8)) 1.0)
(fmax
1.0
(*
(if t_10 (floor maxAniso) (/ (fmax t_5 t_6) t_2))
(if t_10 t_9 (/ t_2 t_8))))
(if t_10 (floor maxAniso) (/ (/ (fmax t_5 (+ t_6 t_3)) t_4) t_4)))))
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) * floorf(w);
float t_1 = (dY_46_u * dX_46_v) - (dY_46_v * dX_46_u);
float t_2 = fabsf((t_0 * t_1));
float t_3 = powf((floorf(h) * dY_46_v), 2.0f);
float t_4 = sqrtf(((t_1 * floorf(w)) * floorf(h)));
float t_5 = powf((floorf(h) * dX_46_v), 2.0f) + powf((floorf(w) * dX_46_u), 2.0f);
float t_6 = powf((floorf(w) * dY_46_u), 2.0f);
float t_7 = fmaxf(t_5, (t_3 + t_6));
float t_8 = sqrtf(t_7);
float t_9 = t_8 / floorf(maxAniso);
int t_10 = (t_7 / t_2) > floorf(maxAniso);
float tmp;
if (t_10) {
tmp = t_9;
} else {
tmp = fabsf((t_0 * (dY_46_u * dX_46_v))) / t_8;
}
float tmp_3;
if (tmp < 1.0f) {
float tmp_4;
if (t_10) {
tmp_4 = floorf(maxAniso);
} else {
tmp_4 = fmaxf(t_5, t_6) / t_2;
}
float tmp_5;
if (t_10) {
tmp_5 = t_9;
} else {
tmp_5 = t_2 / t_8;
}
tmp_3 = fmaxf(1.0f, (tmp_4 * tmp_5));
} else if (t_10) {
tmp_3 = floorf(maxAniso);
} else {
tmp_3 = (fmaxf(t_5, (t_6 + t_3)) / t_4) / t_4;
}
return tmp_3;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(h) * floor(w)) t_1 = Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_46_u)) t_2 = abs(Float32(t_0 * t_1)) t_3 = Float32(floor(h) * dY_46_v) ^ Float32(2.0) t_4 = sqrt(Float32(Float32(t_1 * floor(w)) * floor(h))) t_5 = Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) t_6 = Float32(floor(w) * dY_46_u) ^ Float32(2.0) t_7 = fmax(t_5, Float32(t_3 + t_6)) t_8 = sqrt(t_7) t_9 = Float32(t_8 / floor(maxAniso)) t_10 = Float32(t_7 / t_2) > floor(maxAniso) tmp = Float32(0.0) if (t_10) tmp = t_9; else tmp = Float32(abs(Float32(t_0 * Float32(dY_46_u * dX_46_v))) / t_8); end tmp_3 = Float32(0.0) if (tmp < Float32(1.0)) tmp_4 = Float32(0.0) if (t_10) tmp_4 = floor(maxAniso); else tmp_4 = Float32(fmax(t_5, t_6) / t_2); end tmp_5 = Float32(0.0) if (t_10) tmp_5 = t_9; else tmp_5 = Float32(t_2 / t_8); end tmp_3 = fmax(Float32(1.0), Float32(tmp_4 * tmp_5)); elseif (t_10) tmp_3 = floor(maxAniso); else tmp_3 = Float32(Float32(fmax(t_5, Float32(t_6 + t_3)) / t_4) / t_4); 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 = floor(h) * floor(w); t_1 = (dY_46_u * dX_46_v) - (dY_46_v * dX_46_u); t_2 = abs((t_0 * t_1)); t_3 = (floor(h) * dY_46_v) ^ single(2.0); t_4 = sqrt(((t_1 * floor(w)) * floor(h))); t_5 = ((floor(h) * dX_46_v) ^ single(2.0)) + ((floor(w) * dX_46_u) ^ single(2.0)); t_6 = (floor(w) * dY_46_u) ^ single(2.0); t_7 = max(t_5, (t_3 + t_6)); t_8 = sqrt(t_7); t_9 = t_8 / floor(maxAniso); t_10 = (t_7 / t_2) > floor(maxAniso); tmp = single(0.0); if (t_10) tmp = t_9; else tmp = abs((t_0 * (dY_46_u * dX_46_v))) / t_8; end tmp_4 = single(0.0); if (tmp < single(1.0)) tmp_5 = single(0.0); if (t_10) tmp_5 = floor(maxAniso); else tmp_5 = max(t_5, t_6) / t_2; end tmp_6 = single(0.0); if (t_10) tmp_6 = t_9; else tmp_6 = t_2 / t_8; end tmp_4 = max(single(1.0), (tmp_5 * tmp_6)); elseif (t_10) tmp_4 = floor(maxAniso); else tmp_4 = (max(t_5, (t_6 + t_3)) / t_4) / t_4; end tmp_7 = tmp_4; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \\
t_1 := dY.u \cdot dX.v - dY.v \cdot dX.u\\
t_2 := \left|t\_0 \cdot t\_1\right|\\
t_3 := {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2}\\
t_4 := \sqrt{\left(t\_1 \cdot \left\lfloor w\right\rfloor \right) \cdot \left\lfloor h\right\rfloor }\\
t_5 := {\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + {\left(\left\lfloor w\right\rfloor \cdot dX.u\right)}^{2}\\
t_6 := {\left(\left\lfloor w\right\rfloor \cdot dY.u\right)}^{2}\\
t_7 := \mathsf{max}\left(t\_5, t\_3 + t\_6\right)\\
t_8 := \sqrt{t\_7}\\
t_9 := \frac{t\_8}{\left\lfloor maxAniso\right\rfloor }\\
t_10 := \frac{t\_7}{t\_2} > \left\lfloor maxAniso\right\rfloor \\
\mathbf{if}\;\begin{array}{l}
\mathbf{if}\;t\_10:\\
\;\;\;\;t\_9\\
\mathbf{else}:\\
\;\;\;\;\frac{\left|t\_0 \cdot \left(dY.u \cdot dX.v\right)\right|}{t\_8}\\
\end{array} < 1:\\
\;\;\;\;\mathsf{max}\left(1, \begin{array}{l}
\mathbf{if}\;t\_10:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;\frac{\mathsf{max}\left(t\_5, t\_6\right)}{t\_2}\\
\end{array} \cdot \begin{array}{l}
\mathbf{if}\;t\_10:\\
\;\;\;\;t\_9\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_2}{t\_8}\\
\end{array}\right)\\
\mathbf{elif}\;t\_10:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;\frac{\frac{\mathsf{max}\left(t\_5, t\_6 + t\_3\right)}{t\_4}}{t\_4}\\
\end{array}
\end{array}
Initial program 97.6%
Applied rewrites97.6%
Taylor expanded in dX.u around 0
*-commutativeN/A
lift-*.f3296.8
Applied rewrites96.8%
Applied rewrites96.2%
Taylor expanded in dY.u around inf
*-commutativeN/A
unpow-prod-downN/A
lift-floor.f32N/A
lift-*.f32N/A
lift-pow.f3296.2
Applied rewrites96.2%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (* (- (* dY.u dX.v) (* dY.v dX.u)) (floor w)) (floor h)))
(t_1 (+ (pow (* (floor w) dY.u) 2.0) (pow (* (floor h) dY.v) 2.0)))
(t_2 (pow (* (floor h) dX.v) 2.0))
(t_3 (fmax (+ t_2 (pow (* (floor w) dX.u) 2.0)) t_1))
(t_4 (sqrt t_3))
(t_5 (/ t_4 (floor maxAniso)))
(t_6 (/ t_3 t_0))
(t_7 (> t_6 (floor maxAniso))))
(if (<
(if t_7 t_5 (/ (fabs (* (* (floor h) (floor w)) (* dY.u dX.v))) t_4))
1.0)
(fmax
1.0
(*
(if t_7 t_5 (/ t_0 t_4))
(if t_7 (floor maxAniso) (/ (fmax t_2 t_1) t_0))))
(if t_7 (floor maxAniso) t_6))))
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 = (((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)) * floorf(w)) * floorf(h);
float t_1 = powf((floorf(w) * dY_46_u), 2.0f) + powf((floorf(h) * dY_46_v), 2.0f);
float t_2 = powf((floorf(h) * dX_46_v), 2.0f);
float t_3 = fmaxf((t_2 + powf((floorf(w) * dX_46_u), 2.0f)), t_1);
float t_4 = sqrtf(t_3);
float t_5 = t_4 / floorf(maxAniso);
float t_6 = t_3 / t_0;
int t_7 = t_6 > floorf(maxAniso);
float tmp;
if (t_7) {
tmp = t_5;
} else {
tmp = fabsf(((floorf(h) * floorf(w)) * (dY_46_u * dX_46_v))) / t_4;
}
float tmp_3;
if (tmp < 1.0f) {
float tmp_4;
if (t_7) {
tmp_4 = t_5;
} else {
tmp_4 = t_0 / t_4;
}
float tmp_5;
if (t_7) {
tmp_5 = floorf(maxAniso);
} else {
tmp_5 = fmaxf(t_2, t_1) / t_0;
}
tmp_3 = fmaxf(1.0f, (tmp_4 * tmp_5));
} else if (t_7) {
tmp_3 = floorf(maxAniso);
} else {
tmp_3 = t_6;
}
return tmp_3;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(Float32(Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_46_u)) * floor(w)) * floor(h)) t_1 = Float32((Float32(floor(w) * dY_46_u) ^ Float32(2.0)) + (Float32(floor(h) * dY_46_v) ^ Float32(2.0))) t_2 = Float32(floor(h) * dX_46_v) ^ Float32(2.0) t_3 = fmax(Float32(t_2 + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))), t_1) t_4 = sqrt(t_3) t_5 = Float32(t_4 / floor(maxAniso)) t_6 = Float32(t_3 / t_0) t_7 = t_6 > floor(maxAniso) tmp = Float32(0.0) if (t_7) tmp = t_5; else tmp = Float32(abs(Float32(Float32(floor(h) * floor(w)) * Float32(dY_46_u * dX_46_v))) / t_4); end tmp_3 = Float32(0.0) if (tmp < Float32(1.0)) tmp_4 = Float32(0.0) if (t_7) tmp_4 = t_5; else tmp_4 = Float32(t_0 / t_4); end tmp_5 = Float32(0.0) if (t_7) tmp_5 = floor(maxAniso); else tmp_5 = Float32(fmax(t_2, t_1) / t_0); end tmp_3 = fmax(Float32(1.0), Float32(tmp_4 * tmp_5)); elseif (t_7) tmp_3 = floor(maxAniso); else tmp_3 = t_6; 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 = (((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)) * floor(w)) * floor(h); t_1 = ((floor(w) * dY_46_u) ^ single(2.0)) + ((floor(h) * dY_46_v) ^ single(2.0)); t_2 = (floor(h) * dX_46_v) ^ single(2.0); t_3 = max((t_2 + ((floor(w) * dX_46_u) ^ single(2.0))), t_1); t_4 = sqrt(t_3); t_5 = t_4 / floor(maxAniso); t_6 = t_3 / t_0; t_7 = t_6 > floor(maxAniso); tmp = single(0.0); if (t_7) tmp = t_5; else tmp = abs(((floor(h) * floor(w)) * (dY_46_u * dX_46_v))) / t_4; end tmp_4 = single(0.0); if (tmp < single(1.0)) tmp_5 = single(0.0); if (t_7) tmp_5 = t_5; else tmp_5 = t_0 / t_4; end tmp_6 = single(0.0); if (t_7) tmp_6 = floor(maxAniso); else tmp_6 = max(t_2, t_1) / t_0; end tmp_4 = max(single(1.0), (tmp_5 * tmp_6)); elseif (t_7) tmp_4 = floor(maxAniso); else tmp_4 = t_6; end tmp_7 = tmp_4; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(\left(dY.u \cdot dX.v - dY.v \cdot dX.u\right) \cdot \left\lfloor w\right\rfloor \right) \cdot \left\lfloor h\right\rfloor \\
t_1 := {\left(\left\lfloor w\right\rfloor \cdot dY.u\right)}^{2} + {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2}\\
t_2 := {\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2}\\
t_3 := \mathsf{max}\left(t\_2 + {\left(\left\lfloor w\right\rfloor \cdot dX.u\right)}^{2}, t\_1\right)\\
t_4 := \sqrt{t\_3}\\
t_5 := \frac{t\_4}{\left\lfloor maxAniso\right\rfloor }\\
t_6 := \frac{t\_3}{t\_0}\\
t_7 := t\_6 > \left\lfloor maxAniso\right\rfloor \\
\mathbf{if}\;\begin{array}{l}
\mathbf{if}\;t\_7:\\
\;\;\;\;t\_5\\
\mathbf{else}:\\
\;\;\;\;\frac{\left|\left(\left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \right) \cdot \left(dY.u \cdot dX.v\right)\right|}{t\_4}\\
\end{array} < 1:\\
\;\;\;\;\mathsf{max}\left(1, \begin{array}{l}
\mathbf{if}\;t\_7:\\
\;\;\;\;t\_5\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_0}{t\_4}\\
\end{array} \cdot \begin{array}{l}
\mathbf{if}\;t\_7:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;\frac{\mathsf{max}\left(t\_2, t\_1\right)}{t\_0}\\
\end{array}\right)\\
\mathbf{elif}\;t\_7:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;t\_6\\
\end{array}
\end{array}
Initial program 97.6%
Applied rewrites97.6%
Taylor expanded in dX.u around 0
*-commutativeN/A
lift-*.f3296.8
Applied rewrites96.8%
Applied rewrites57.0%
Taylor expanded in dX.u around 0
*-commutativeN/A
unpow-prod-downN/A
lift-floor.f32N/A
lift-*.f32N/A
lift-pow.f3257.5
Applied rewrites57.5%
herbie shell --seed 2025093
(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))))))))