
(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\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}
Sampling outcomes in binary32 precision:
Herbie found 5 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\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 (* dX.u (floor w)))
(t_1 (* dY.u (floor w)))
(t_2 (* dY.v (floor h)))
(t_3 (* dX.v (floor h)))
(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
(pow
(/
(fabs (* (- (* dY.v t_0) (* t_1 dX.v)) (floor h)))
(fmax
(+ (pow t_0 2.0) (pow t_3 2.0))
(+ (pow t_1 2.0) (pow t_2 2.0))))
-0.5))
(t_7 (fabs (- (* t_1 t_3) (* t_2 t_0))))
(t_8 (/ t_4 t_7))
(t_9 (> t_8 (floor maxAniso)))
(t_10 (if t_9 (/ t_5 (floor maxAniso)) (/ t_7 t_5))))
(if (< t_10 1.0)
(fmax 1.0 (* (if t_9 (floor maxAniso) t_8) t_10))
(if t_9 (floor maxAniso) (* t_6 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 = dX_46_u * floorf(w);
float t_1 = dY_46_u * floorf(w);
float t_2 = dY_46_v * floorf(h);
float t_3 = dX_46_v * floorf(h);
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 = powf((fabsf((((dY_46_v * t_0) - (t_1 * dX_46_v)) * floorf(h))) / fmaxf((powf(t_0, 2.0f) + powf(t_3, 2.0f)), (powf(t_1, 2.0f) + powf(t_2, 2.0f)))), -0.5f);
float t_7 = fabsf(((t_1 * t_3) - (t_2 * t_0)));
float t_8 = t_4 / t_7;
int t_9 = t_8 > floorf(maxAniso);
float tmp;
if (t_9) {
tmp = t_5 / floorf(maxAniso);
} else {
tmp = t_7 / t_5;
}
float t_10 = tmp;
float tmp_2;
if (t_10 < 1.0f) {
float tmp_3;
if (t_9) {
tmp_3 = floorf(maxAniso);
} else {
tmp_3 = t_8;
}
tmp_2 = fmaxf(1.0f, (tmp_3 * t_10));
} else if (t_9) {
tmp_2 = floorf(maxAniso);
} else {
tmp_2 = t_6 * t_6;
}
return tmp_2;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(dX_46_u * floor(w)) t_1 = Float32(dY_46_u * floor(w)) t_2 = Float32(dY_46_v * floor(h)) t_3 = Float32(dX_46_v * floor(h)) 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 = Float32(abs(Float32(Float32(Float32(dY_46_v * t_0) - Float32(t_1 * dX_46_v)) * floor(h))) / ((Float32((t_0 ^ Float32(2.0)) + (t_3 ^ Float32(2.0))) != Float32((t_0 ^ Float32(2.0)) + (t_3 ^ Float32(2.0)))) ? Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) : ((Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) != Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0)))) ? Float32((t_0 ^ Float32(2.0)) + (t_3 ^ Float32(2.0))) : max(Float32((t_0 ^ Float32(2.0)) + (t_3 ^ Float32(2.0))), Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))))))) ^ Float32(-0.5) t_7 = abs(Float32(Float32(t_1 * t_3) - Float32(t_2 * t_0))) t_8 = Float32(t_4 / t_7) t_9 = t_8 > floor(maxAniso) tmp = Float32(0.0) if (t_9) tmp = Float32(t_5 / floor(maxAniso)); else tmp = Float32(t_7 / t_5); end t_10 = tmp tmp_2 = Float32(0.0) if (t_10 < Float32(1.0)) tmp_3 = Float32(0.0) if (t_9) tmp_3 = floor(maxAniso); else tmp_3 = t_8; end tmp_2 = (Float32(1.0) != Float32(1.0)) ? Float32(tmp_3 * t_10) : ((Float32(tmp_3 * t_10) != Float32(tmp_3 * t_10)) ? Float32(1.0) : max(Float32(1.0), Float32(tmp_3 * t_10))); elseif (t_9) tmp_2 = floor(maxAniso); else tmp_2 = Float32(t_6 * t_6); 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 = dX_46_u * floor(w); t_1 = dY_46_u * floor(w); t_2 = dY_46_v * floor(h); t_3 = dX_46_v * floor(h); 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((((dY_46_v * t_0) - (t_1 * dX_46_v)) * floor(h))) / max(((t_0 ^ single(2.0)) + (t_3 ^ single(2.0))), ((t_1 ^ single(2.0)) + (t_2 ^ single(2.0))))) ^ single(-0.5); t_7 = abs(((t_1 * t_3) - (t_2 * t_0))); t_8 = t_4 / t_7; t_9 = t_8 > floor(maxAniso); tmp = single(0.0); if (t_9) tmp = t_5 / floor(maxAniso); else tmp = t_7 / t_5; end t_10 = tmp; tmp_3 = single(0.0); if (t_10 < single(1.0)) tmp_4 = single(0.0); if (t_9) tmp_4 = floor(maxAniso); else tmp_4 = t_8; end tmp_3 = max(single(1.0), (tmp_4 * t_10)); elseif (t_9) tmp_3 = floor(maxAniso); else tmp_3 = t_6 * t_6; end tmp_5 = tmp_3; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.u \cdot \left\lfloor w\right\rfloor \\
t_1 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_2 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_3 := dX.v \cdot \left\lfloor h\right\rfloor \\
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(\frac{\left|\left(dY.v \cdot t\_0 - t\_1 \cdot dX.v\right) \cdot \left\lfloor h\right\rfloor \right|}{\mathsf{max}\left({t\_0}^{2} + {t\_3}^{2}, {t\_1}^{2} + {t\_2}^{2}\right)}\right)}^{-0.5}\\
t_7 := \left|t\_1 \cdot t\_3 - t\_2 \cdot t\_0\right|\\
t_8 := \frac{t\_4}{t\_7}\\
t_9 := t\_8 > \left\lfloor maxAniso\right\rfloor \\
t_10 := \begin{array}{l}
\mathbf{if}\;t\_9:\\
\;\;\;\;\frac{t\_5}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_7}{t\_5}\\
\end{array}\\
\mathbf{if}\;t\_10 < 1:\\
\;\;\;\;\mathsf{max}\left(1, \begin{array}{l}
\mathbf{if}\;t\_9:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;t\_8\\
\end{array} \cdot t\_10\right)\\
\mathbf{elif}\;t\_9:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot t\_6\\
\end{array}
\end{array}
Initial program 97.6%
Applied rewrites97.6%
Final simplification97.6%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dX.v (floor h)))
(t_1 (* dY.u (floor w)))
(t_2 (* dY.v (floor h)))
(t_3 (* dX.u (floor w)))
(t_4 (fabs (- (* t_1 t_0) (* t_2 t_3))))
(t_5
(fmax
(+ (pow t_3 2.0) (pow t_0 2.0))
(+ (pow t_1 2.0) (pow t_2 2.0))))
(t_6 (sqrt t_5))
(t_7 (fabs (* (- (* dY.v t_3) (* t_1 dX.v)) (floor h))))
(t_8 (fmax (+ (* t_0 t_0) (* t_3 t_3)) (+ (* t_2 t_2) (* t_1 t_1))))
(t_9 (sqrt t_8))
(t_10 (/ t_8 t_4))
(t_11 (> t_10 (floor maxAniso)))
(t_12 (if t_11 (floor maxAniso) t_10)))
(if (<
(if (> (/ t_5 t_7) (floor maxAniso))
(/ t_6 (floor maxAniso))
(/ t_7 t_6))
1.0)
(fmax 1.0 (* t_12 (if t_11 (/ t_9 (floor maxAniso)) (/ t_4 t_9))))
t_12)))
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 = dY_46_u * floorf(w);
float t_2 = dY_46_v * floorf(h);
float t_3 = dX_46_u * floorf(w);
float t_4 = fabsf(((t_1 * t_0) - (t_2 * t_3)));
float t_5 = fmaxf((powf(t_3, 2.0f) + powf(t_0, 2.0f)), (powf(t_1, 2.0f) + powf(t_2, 2.0f)));
float t_6 = sqrtf(t_5);
float t_7 = fabsf((((dY_46_v * t_3) - (t_1 * dX_46_v)) * floorf(h)));
float t_8 = fmaxf(((t_0 * t_0) + (t_3 * t_3)), ((t_2 * t_2) + (t_1 * t_1)));
float t_9 = sqrtf(t_8);
float t_10 = t_8 / t_4;
int t_11 = t_10 > floorf(maxAniso);
float tmp;
if (t_11) {
tmp = floorf(maxAniso);
} else {
tmp = t_10;
}
float t_12 = tmp;
float tmp_1;
if ((t_5 / t_7) > floorf(maxAniso)) {
tmp_1 = t_6 / floorf(maxAniso);
} else {
tmp_1 = t_7 / t_6;
}
float tmp_3;
if (tmp_1 < 1.0f) {
float tmp_4;
if (t_11) {
tmp_4 = t_9 / floorf(maxAniso);
} else {
tmp_4 = t_4 / t_9;
}
tmp_3 = fmaxf(1.0f, (t_12 * tmp_4));
} else {
tmp_3 = t_12;
}
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(dY_46_u * floor(w)) t_2 = Float32(dY_46_v * floor(h)) t_3 = Float32(dX_46_u * floor(w)) t_4 = abs(Float32(Float32(t_1 * t_0) - Float32(t_2 * t_3))) t_5 = (Float32((t_3 ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) != Float32((t_3 ^ Float32(2.0)) + (t_0 ^ Float32(2.0)))) ? Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) : ((Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) != Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0)))) ? Float32((t_3 ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) : max(Float32((t_3 ^ Float32(2.0)) + (t_0 ^ Float32(2.0))), Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))))) t_6 = sqrt(t_5) t_7 = abs(Float32(Float32(Float32(dY_46_v * t_3) - Float32(t_1 * dX_46_v)) * floor(h))) t_8 = (Float32(Float32(t_0 * t_0) + Float32(t_3 * t_3)) != Float32(Float32(t_0 * t_0) + Float32(t_3 * t_3))) ? 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_0 * t_0) + Float32(t_3 * t_3)) : max(Float32(Float32(t_0 * t_0) + Float32(t_3 * t_3)), Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1)))) t_9 = sqrt(t_8) t_10 = Float32(t_8 / t_4) t_11 = t_10 > floor(maxAniso) tmp = Float32(0.0) if (t_11) tmp = floor(maxAniso); else tmp = t_10; end t_12 = tmp tmp_1 = Float32(0.0) if (Float32(t_5 / t_7) > floor(maxAniso)) tmp_1 = Float32(t_6 / floor(maxAniso)); else tmp_1 = Float32(t_7 / t_6); end tmp_3 = Float32(0.0) if (tmp_1 < Float32(1.0)) tmp_4 = Float32(0.0) if (t_11) tmp_4 = Float32(t_9 / floor(maxAniso)); else tmp_4 = Float32(t_4 / t_9); end tmp_3 = (Float32(1.0) != Float32(1.0)) ? Float32(t_12 * tmp_4) : ((Float32(t_12 * tmp_4) != Float32(t_12 * tmp_4)) ? Float32(1.0) : max(Float32(1.0), Float32(t_12 * tmp_4))); else tmp_3 = t_12; end return tmp_3 end
function tmp_6 = 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 = dY_46_u * floor(w); t_2 = dY_46_v * floor(h); t_3 = dX_46_u * floor(w); t_4 = abs(((t_1 * t_0) - (t_2 * t_3))); t_5 = max(((t_3 ^ single(2.0)) + (t_0 ^ single(2.0))), ((t_1 ^ single(2.0)) + (t_2 ^ single(2.0)))); t_6 = sqrt(t_5); t_7 = abs((((dY_46_v * t_3) - (t_1 * dX_46_v)) * floor(h))); t_8 = max(((t_0 * t_0) + (t_3 * t_3)), ((t_2 * t_2) + (t_1 * t_1))); t_9 = sqrt(t_8); t_10 = t_8 / t_4; t_11 = t_10 > floor(maxAniso); tmp = single(0.0); if (t_11) tmp = floor(maxAniso); else tmp = t_10; end t_12 = tmp; tmp_2 = single(0.0); if ((t_5 / t_7) > floor(maxAniso)) tmp_2 = t_6 / floor(maxAniso); else tmp_2 = t_7 / t_6; end tmp_4 = single(0.0); if (tmp_2 < single(1.0)) tmp_5 = single(0.0); if (t_11) tmp_5 = t_9 / floor(maxAniso); else tmp_5 = t_4 / t_9; end tmp_4 = max(single(1.0), (t_12 * tmp_5)); else tmp_4 = t_12; end tmp_6 = tmp_4; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.v \cdot \left\lfloor h\right\rfloor \\
t_1 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_2 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_3 := dX.u \cdot \left\lfloor w\right\rfloor \\
t_4 := \left|t\_1 \cdot t\_0 - t\_2 \cdot t\_3\right|\\
t_5 := \mathsf{max}\left({t\_3}^{2} + {t\_0}^{2}, {t\_1}^{2} + {t\_2}^{2}\right)\\
t_6 := \sqrt{t\_5}\\
t_7 := \left|\left(dY.v \cdot t\_3 - t\_1 \cdot dX.v\right) \cdot \left\lfloor h\right\rfloor \right|\\
t_8 := \mathsf{max}\left(t\_0 \cdot t\_0 + t\_3 \cdot t\_3, t\_2 \cdot t\_2 + t\_1 \cdot t\_1\right)\\
t_9 := \sqrt{t\_8}\\
t_10 := \frac{t\_8}{t\_4}\\
t_11 := t\_10 > \left\lfloor maxAniso\right\rfloor \\
t_12 := \begin{array}{l}
\mathbf{if}\;t\_11:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;t\_10\\
\end{array}\\
\mathbf{if}\;\begin{array}{l}
\mathbf{if}\;\frac{t\_5}{t\_7} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{t\_6}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_7}{t\_6}\\
\end{array} < 1:\\
\;\;\;\;\mathsf{max}\left(1, t\_12 \cdot \begin{array}{l}
\mathbf{if}\;t\_11:\\
\;\;\;\;\frac{t\_9}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_4}{t\_9}\\
\end{array}\right)\\
\mathbf{else}:\\
\;\;\;\;t\_12\\
\end{array}
\end{array}
Initial program 97.6%
Applied rewrites97.6%
Final simplification97.6%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (floor w) 2.0))
(t_1 (* t_0 dX.u))
(t_2 (* dY.u (floor w)))
(t_3 (* dX.v (floor h)))
(t_4 (* dX.u (floor w)))
(t_5 (pow (floor h) 2.0))
(t_6 (* t_5 dX.v))
(t_7 (* dY.v (floor h)))
(t_8 (* (floor h) (floor w)))
(t_9 (* t_5 dY.v))
(t_10 (fmax (+ (* t_3 t_3) (* t_4 t_4)) (+ (* t_7 t_7) (* t_2 t_2))))
(t_11 (sqrt t_10))
(t_12 (/ t_11 (floor maxAniso)))
(t_13 (/ t_10 (fabs (- (* t_2 t_3) (* t_7 t_4)))))
(t_14 (> t_13 (floor maxAniso)))
(t_15 (* t_0 dY.u)))
(if (<
(if t_14
t_12
(*
(fabs (* t_8 (fma (- dX.u) dY.v (* dY.u dX.v))))
(sqrt
(/
1.0
(fmax
(fma t_6 dX.v (* t_1 dX.u))
(fma t_9 dY.v (* t_15 dY.u)))))))
1.0)
(fmax
1.0
(*
(if t_14 t_12 (/ (fabs (* (* (floor h) dX.u) (* dY.v (floor w)))) t_11))
(if t_14
(floor maxAniso)
(/
(fmax (fma t_1 dX.u (* t_6 dX.v)) (fma t_15 dY.u (* t_9 dY.v)))
(fabs (* (- (* dY.u dX.v) (* dY.v dX.u)) t_8))))))
(if t_14 (floor maxAniso) t_13))))
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 = t_0 * dX_46_u;
float t_2 = dY_46_u * floorf(w);
float t_3 = dX_46_v * floorf(h);
float t_4 = dX_46_u * floorf(w);
float t_5 = powf(floorf(h), 2.0f);
float t_6 = t_5 * dX_46_v;
float t_7 = dY_46_v * floorf(h);
float t_8 = floorf(h) * floorf(w);
float t_9 = t_5 * dY_46_v;
float t_10 = fmaxf(((t_3 * t_3) + (t_4 * t_4)), ((t_7 * t_7) + (t_2 * t_2)));
float t_11 = sqrtf(t_10);
float t_12 = t_11 / floorf(maxAniso);
float t_13 = t_10 / fabsf(((t_2 * t_3) - (t_7 * t_4)));
int t_14 = t_13 > floorf(maxAniso);
float t_15 = t_0 * dY_46_u;
float tmp;
if (t_14) {
tmp = t_12;
} else {
tmp = fabsf((t_8 * fmaf(-dX_46_u, dY_46_v, (dY_46_u * dX_46_v)))) * sqrtf((1.0f / fmaxf(fmaf(t_6, dX_46_v, (t_1 * dX_46_u)), fmaf(t_9, dY_46_v, (t_15 * dY_46_u)))));
}
float tmp_3;
if (tmp < 1.0f) {
float tmp_4;
if (t_14) {
tmp_4 = t_12;
} else {
tmp_4 = fabsf(((floorf(h) * dX_46_u) * (dY_46_v * floorf(w)))) / t_11;
}
float tmp_5;
if (t_14) {
tmp_5 = floorf(maxAniso);
} else {
tmp_5 = fmaxf(fmaf(t_1, dX_46_u, (t_6 * dX_46_v)), fmaf(t_15, dY_46_u, (t_9 * dY_46_v))) / fabsf((((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)) * t_8));
}
tmp_3 = fmaxf(1.0f, (tmp_4 * tmp_5));
} else if (t_14) {
tmp_3 = floorf(maxAniso);
} else {
tmp_3 = t_13;
}
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 = Float32(t_0 * dX_46_u) t_2 = Float32(dY_46_u * floor(w)) t_3 = Float32(dX_46_v * floor(h)) t_4 = Float32(dX_46_u * floor(w)) t_5 = floor(h) ^ Float32(2.0) t_6 = Float32(t_5 * dX_46_v) t_7 = Float32(dY_46_v * floor(h)) t_8 = Float32(floor(h) * floor(w)) t_9 = Float32(t_5 * dY_46_v) t_10 = (Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)) != Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4))) ? Float32(Float32(t_7 * t_7) + Float32(t_2 * t_2)) : ((Float32(Float32(t_7 * t_7) + Float32(t_2 * t_2)) != Float32(Float32(t_7 * t_7) + Float32(t_2 * t_2))) ? Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)) : max(Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)), Float32(Float32(t_7 * t_7) + Float32(t_2 * t_2)))) t_11 = sqrt(t_10) t_12 = Float32(t_11 / floor(maxAniso)) t_13 = Float32(t_10 / abs(Float32(Float32(t_2 * t_3) - Float32(t_7 * t_4)))) t_14 = t_13 > floor(maxAniso) t_15 = Float32(t_0 * dY_46_u) tmp = Float32(0.0) if (t_14) tmp = t_12; else tmp = Float32(abs(Float32(t_8 * fma(Float32(-dX_46_u), dY_46_v, Float32(dY_46_u * dX_46_v)))) * sqrt(Float32(Float32(1.0) / ((fma(t_6, dX_46_v, Float32(t_1 * dX_46_u)) != fma(t_6, dX_46_v, Float32(t_1 * dX_46_u))) ? fma(t_9, dY_46_v, Float32(t_15 * dY_46_u)) : ((fma(t_9, dY_46_v, Float32(t_15 * dY_46_u)) != fma(t_9, dY_46_v, Float32(t_15 * dY_46_u))) ? fma(t_6, dX_46_v, Float32(t_1 * dX_46_u)) : max(fma(t_6, dX_46_v, Float32(t_1 * dX_46_u)), fma(t_9, dY_46_v, Float32(t_15 * dY_46_u)))))))); end tmp_3 = Float32(0.0) if (tmp < Float32(1.0)) tmp_4 = Float32(0.0) if (t_14) tmp_4 = t_12; else tmp_4 = Float32(abs(Float32(Float32(floor(h) * dX_46_u) * Float32(dY_46_v * floor(w)))) / t_11); end tmp_5 = Float32(0.0) if (t_14) tmp_5 = floor(maxAniso); else tmp_5 = Float32(((fma(t_1, dX_46_u, Float32(t_6 * dX_46_v)) != fma(t_1, dX_46_u, Float32(t_6 * dX_46_v))) ? fma(t_15, dY_46_u, Float32(t_9 * dY_46_v)) : ((fma(t_15, dY_46_u, Float32(t_9 * dY_46_v)) != fma(t_15, dY_46_u, Float32(t_9 * dY_46_v))) ? fma(t_1, dX_46_u, Float32(t_6 * dX_46_v)) : max(fma(t_1, dX_46_u, Float32(t_6 * dX_46_v)), fma(t_15, dY_46_u, Float32(t_9 * dY_46_v))))) / abs(Float32(Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_46_u)) * t_8))); 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_14) tmp_3 = floor(maxAniso); else tmp_3 = t_13; end return tmp_3 end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\left\lfloor w\right\rfloor \right)}^{2}\\
t_1 := t\_0 \cdot dX.u\\
t_2 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_3 := dX.v \cdot \left\lfloor h\right\rfloor \\
t_4 := dX.u \cdot \left\lfloor w\right\rfloor \\
t_5 := {\left(\left\lfloor h\right\rfloor \right)}^{2}\\
t_6 := t\_5 \cdot dX.v\\
t_7 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_8 := \left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \\
t_9 := t\_5 \cdot dY.v\\
t_10 := \mathsf{max}\left(t\_3 \cdot t\_3 + t\_4 \cdot t\_4, t\_7 \cdot t\_7 + t\_2 \cdot t\_2\right)\\
t_11 := \sqrt{t\_10}\\
t_12 := \frac{t\_11}{\left\lfloor maxAniso\right\rfloor }\\
t_13 := \frac{t\_10}{\left|t\_2 \cdot t\_3 - t\_7 \cdot t\_4\right|}\\
t_14 := t\_13 > \left\lfloor maxAniso\right\rfloor \\
t_15 := t\_0 \cdot dY.u\\
\mathbf{if}\;\begin{array}{l}
\mathbf{if}\;t\_14:\\
\;\;\;\;t\_12\\
\mathbf{else}:\\
\;\;\;\;\left|t\_8 \cdot \mathsf{fma}\left(-dX.u, dY.v, dY.u \cdot dX.v\right)\right| \cdot \sqrt{\frac{1}{\mathsf{max}\left(\mathsf{fma}\left(t\_6, dX.v, t\_1 \cdot dX.u\right), \mathsf{fma}\left(t\_9, dY.v, t\_15 \cdot dY.u\right)\right)}}\\
\end{array} < 1:\\
\;\;\;\;\mathsf{max}\left(1, \begin{array}{l}
\mathbf{if}\;t\_14:\\
\;\;\;\;t\_12\\
\mathbf{else}:\\
\;\;\;\;\frac{\left|\left(\left\lfloor h\right\rfloor \cdot dX.u\right) \cdot \left(dY.v \cdot \left\lfloor w\right\rfloor \right)\right|}{t\_11}\\
\end{array} \cdot \begin{array}{l}
\mathbf{if}\;t\_14:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;\frac{\mathsf{max}\left(\mathsf{fma}\left(t\_1, dX.u, t\_6 \cdot dX.v\right), \mathsf{fma}\left(t\_15, dY.u, t\_9 \cdot dY.v\right)\right)}{\left|\left(dY.u \cdot dX.v - dY.v \cdot dX.u\right) \cdot t\_8\right|}\\
\end{array}\right)\\
\mathbf{elif}\;t\_14:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;t\_13\\
\end{array}
\end{array}
Initial program 97.6%
Taylor expanded in dY.v around 0
Applied rewrites96.9%
Taylor expanded in dY.v around 0
Applied rewrites96.9%
Taylor expanded in dY.v around inf
*-commutativeN/A
associate-*r*N/A
associate-*r*N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-floor.f32N/A
lower-*.f32N/A
lower-floor.f3297.2
Applied rewrites96.9%
Final simplification96.6%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (floor h) 2.0))
(t_1 (* dY.u (floor w)))
(t_2 (* (floor h) (floor w)))
(t_3 (fabs (* t_2 (fma (- dX.u) dY.v (* dY.u dX.v)))))
(t_4 (* dY.v (floor h)))
(t_5 (pow (floor w) 2.0))
(t_6 (* t_5 dX.u))
(t_7 (* t_0 dY.v))
(t_8 (* dX.v (floor h)))
(t_9 (* dX.u (floor w)))
(t_10 (fabs (- (* t_1 t_8) (* t_4 t_9))))
(t_11 (fmax (+ (* t_8 t_8) (* t_9 t_9)) (+ (* t_4 t_4) (* t_1 t_1))))
(t_12 (/ t_11 t_10))
(t_13 (> t_12 (floor maxAniso)))
(t_14 (sqrt t_11))
(t_15 (* t_0 dX.v))
(t_16 (fma t_15 dX.v (* t_6 dX.u)))
(t_17 (* t_5 dY.u))
(t_18 (fmax t_16 (fma t_7 dY.v (* t_17 dY.u))))
(t_19
(/
(fmax (fma t_6 dX.u (* t_15 dX.v)) (fma t_17 dY.u (* t_7 dY.v)))
(fabs (* (- (* dY.u dX.v) (* dY.v dX.u)) t_2)))))
(if (<
(if (> (/ t_18 t_3) (floor maxAniso))
(/
(sqrt
(fmax t_16 (pow (/ 1.0 (+ (pow t_1 2.0) (pow t_4 2.0))) -1.0)))
(floor maxAniso))
(* t_3 (sqrt (/ 1.0 t_18))))
1.0)
(fmax
1.0
(*
(if (> t_19 (floor maxAniso)) (floor maxAniso) t_19)
(if t_13 (/ t_14 (floor maxAniso)) (/ t_10 t_14))))
(if t_13 (floor maxAniso) t_12))))
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(h), 2.0f);
float t_1 = dY_46_u * floorf(w);
float t_2 = floorf(h) * floorf(w);
float t_3 = fabsf((t_2 * fmaf(-dX_46_u, dY_46_v, (dY_46_u * dX_46_v))));
float t_4 = dY_46_v * floorf(h);
float t_5 = powf(floorf(w), 2.0f);
float t_6 = t_5 * dX_46_u;
float t_7 = t_0 * dY_46_v;
float t_8 = dX_46_v * floorf(h);
float t_9 = dX_46_u * floorf(w);
float t_10 = fabsf(((t_1 * t_8) - (t_4 * t_9)));
float t_11 = fmaxf(((t_8 * t_8) + (t_9 * t_9)), ((t_4 * t_4) + (t_1 * t_1)));
float t_12 = t_11 / t_10;
int t_13 = t_12 > floorf(maxAniso);
float t_14 = sqrtf(t_11);
float t_15 = t_0 * dX_46_v;
float t_16 = fmaf(t_15, dX_46_v, (t_6 * dX_46_u));
float t_17 = t_5 * dY_46_u;
float t_18 = fmaxf(t_16, fmaf(t_7, dY_46_v, (t_17 * dY_46_u)));
float t_19 = fmaxf(fmaf(t_6, dX_46_u, (t_15 * dX_46_v)), fmaf(t_17, dY_46_u, (t_7 * dY_46_v))) / fabsf((((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)) * t_2));
float tmp;
if ((t_18 / t_3) > floorf(maxAniso)) {
tmp = sqrtf(fmaxf(t_16, powf((1.0f / (powf(t_1, 2.0f) + powf(t_4, 2.0f))), -1.0f))) / floorf(maxAniso);
} else {
tmp = t_3 * sqrtf((1.0f / t_18));
}
float tmp_3;
if (tmp < 1.0f) {
float tmp_4;
if (t_19 > floorf(maxAniso)) {
tmp_4 = floorf(maxAniso);
} else {
tmp_4 = t_19;
}
float tmp_5;
if (t_13) {
tmp_5 = t_14 / floorf(maxAniso);
} else {
tmp_5 = t_10 / t_14;
}
tmp_3 = fmaxf(1.0f, (tmp_4 * tmp_5));
} else if (t_13) {
tmp_3 = floorf(maxAniso);
} else {
tmp_3 = t_12;
}
return tmp_3;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = floor(h) ^ Float32(2.0) t_1 = Float32(dY_46_u * floor(w)) t_2 = Float32(floor(h) * floor(w)) t_3 = abs(Float32(t_2 * fma(Float32(-dX_46_u), dY_46_v, Float32(dY_46_u * dX_46_v)))) t_4 = Float32(dY_46_v * floor(h)) t_5 = floor(w) ^ Float32(2.0) t_6 = Float32(t_5 * dX_46_u) t_7 = Float32(t_0 * dY_46_v) t_8 = Float32(dX_46_v * floor(h)) t_9 = Float32(dX_46_u * floor(w)) t_10 = abs(Float32(Float32(t_1 * t_8) - Float32(t_4 * t_9))) t_11 = (Float32(Float32(t_8 * t_8) + Float32(t_9 * t_9)) != Float32(Float32(t_8 * t_8) + Float32(t_9 * t_9))) ? Float32(Float32(t_4 * t_4) + Float32(t_1 * t_1)) : ((Float32(Float32(t_4 * t_4) + Float32(t_1 * t_1)) != Float32(Float32(t_4 * t_4) + Float32(t_1 * t_1))) ? Float32(Float32(t_8 * t_8) + Float32(t_9 * t_9)) : max(Float32(Float32(t_8 * t_8) + Float32(t_9 * t_9)), Float32(Float32(t_4 * t_4) + Float32(t_1 * t_1)))) t_12 = Float32(t_11 / t_10) t_13 = t_12 > floor(maxAniso) t_14 = sqrt(t_11) t_15 = Float32(t_0 * dX_46_v) t_16 = fma(t_15, dX_46_v, Float32(t_6 * dX_46_u)) t_17 = Float32(t_5 * dY_46_u) t_18 = (t_16 != t_16) ? fma(t_7, dY_46_v, Float32(t_17 * dY_46_u)) : ((fma(t_7, dY_46_v, Float32(t_17 * dY_46_u)) != fma(t_7, dY_46_v, Float32(t_17 * dY_46_u))) ? t_16 : max(t_16, fma(t_7, dY_46_v, Float32(t_17 * dY_46_u)))) t_19 = Float32(((fma(t_6, dX_46_u, Float32(t_15 * dX_46_v)) != fma(t_6, dX_46_u, Float32(t_15 * dX_46_v))) ? fma(t_17, dY_46_u, Float32(t_7 * dY_46_v)) : ((fma(t_17, dY_46_u, Float32(t_7 * dY_46_v)) != fma(t_17, dY_46_u, Float32(t_7 * dY_46_v))) ? fma(t_6, dX_46_u, Float32(t_15 * dX_46_v)) : max(fma(t_6, dX_46_u, Float32(t_15 * dX_46_v)), fma(t_17, dY_46_u, Float32(t_7 * dY_46_v))))) / abs(Float32(Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_46_u)) * t_2))) tmp = Float32(0.0) if (Float32(t_18 / t_3) > floor(maxAniso)) tmp = Float32(sqrt(((t_16 != t_16) ? (Float32(Float32(1.0) / Float32((t_1 ^ Float32(2.0)) + (t_4 ^ Float32(2.0)))) ^ Float32(-1.0)) : (((Float32(Float32(1.0) / Float32((t_1 ^ Float32(2.0)) + (t_4 ^ Float32(2.0)))) ^ Float32(-1.0)) != (Float32(Float32(1.0) / Float32((t_1 ^ Float32(2.0)) + (t_4 ^ Float32(2.0)))) ^ Float32(-1.0))) ? t_16 : max(t_16, (Float32(Float32(1.0) / Float32((t_1 ^ Float32(2.0)) + (t_4 ^ Float32(2.0)))) ^ Float32(-1.0)))))) / floor(maxAniso)); else tmp = Float32(t_3 * sqrt(Float32(Float32(1.0) / t_18))); end tmp_3 = Float32(0.0) if (tmp < Float32(1.0)) tmp_4 = Float32(0.0) if (t_19 > floor(maxAniso)) tmp_4 = floor(maxAniso); else tmp_4 = t_19; end tmp_5 = Float32(0.0) if (t_13) tmp_5 = Float32(t_14 / floor(maxAniso)); else tmp_5 = Float32(t_10 / t_14); 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_13) tmp_3 = floor(maxAniso); else tmp_3 = t_12; end return tmp_3 end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\left\lfloor h\right\rfloor \right)}^{2}\\
t_1 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_2 := \left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \\
t_3 := \left|t\_2 \cdot \mathsf{fma}\left(-dX.u, dY.v, dY.u \cdot dX.v\right)\right|\\
t_4 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_5 := {\left(\left\lfloor w\right\rfloor \right)}^{2}\\
t_6 := t\_5 \cdot dX.u\\
t_7 := t\_0 \cdot dY.v\\
t_8 := dX.v \cdot \left\lfloor h\right\rfloor \\
t_9 := dX.u \cdot \left\lfloor w\right\rfloor \\
t_10 := \left|t\_1 \cdot t\_8 - t\_4 \cdot t\_9\right|\\
t_11 := \mathsf{max}\left(t\_8 \cdot t\_8 + t\_9 \cdot t\_9, t\_4 \cdot t\_4 + t\_1 \cdot t\_1\right)\\
t_12 := \frac{t\_11}{t\_10}\\
t_13 := t\_12 > \left\lfloor maxAniso\right\rfloor \\
t_14 := \sqrt{t\_11}\\
t_15 := t\_0 \cdot dX.v\\
t_16 := \mathsf{fma}\left(t\_15, dX.v, t\_6 \cdot dX.u\right)\\
t_17 := t\_5 \cdot dY.u\\
t_18 := \mathsf{max}\left(t\_16, \mathsf{fma}\left(t\_7, dY.v, t\_17 \cdot dY.u\right)\right)\\
t_19 := \frac{\mathsf{max}\left(\mathsf{fma}\left(t\_6, dX.u, t\_15 \cdot dX.v\right), \mathsf{fma}\left(t\_17, dY.u, t\_7 \cdot dY.v\right)\right)}{\left|\left(dY.u \cdot dX.v - dY.v \cdot dX.u\right) \cdot t\_2\right|}\\
\mathbf{if}\;\begin{array}{l}
\mathbf{if}\;\frac{t\_18}{t\_3} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{\sqrt{\mathsf{max}\left(t\_16, {\left(\frac{1}{{t\_1}^{2} + {t\_4}^{2}}\right)}^{-1}\right)}}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;t\_3 \cdot \sqrt{\frac{1}{t\_18}}\\
\end{array} < 1:\\
\;\;\;\;\mathsf{max}\left(1, \begin{array}{l}
\mathbf{if}\;t\_19 > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;t\_19\\
\end{array} \cdot \begin{array}{l}
\mathbf{if}\;t\_13:\\
\;\;\;\;\frac{t\_14}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_10}{t\_14}\\
\end{array}\right)\\
\mathbf{elif}\;t\_13:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;t\_12\\
\end{array}
\end{array}
Initial program 97.6%
Taylor expanded in dY.v around 0
Applied rewrites86.9%
Taylor expanded in dY.v around 0
Applied rewrites87.3%
Taylor expanded in dY.v around 0
Applied rewrites87.2%
Applied rewrites89.5%
Final simplification89.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dX.u (floor w)))
(t_1 (pow (floor w) 2.0))
(t_2 (* t_1 dX.u))
(t_3 (* dY.v (floor h)))
(t_4 (* dY.u (floor w)))
(t_5 (* (floor h) (floor w)))
(t_6 (fabs (* t_5 (fma (- dX.u) dY.v (* dY.u dX.v)))))
(t_7 (* dX.v (floor h)))
(t_8 (* t_1 dY.u))
(t_9 (pow (floor h) 2.0))
(t_10 (* t_9 dY.v))
(t_11 (* t_9 dX.v))
(t_12 (fmax (fma t_11 dX.v (* t_2 dX.u)) (fma t_10 dY.v (* t_8 dY.u))))
(t_13
(/
(fmax (fma t_2 dX.u (* t_11 dX.v)) (fma t_8 dY.u (* t_10 dY.v)))
(fabs (* (- (* dY.u dX.v) (* dY.v dX.u)) t_5))))
(t_14 (fmax (+ (* t_7 t_7) (* t_0 t_0)) (+ (* t_3 t_3) (* t_4 t_4))))
(t_15 (/ t_14 (fabs (- (* t_4 t_7) (* t_3 t_0)))))
(t_16 (> t_15 (floor maxAniso)))
(t_17 (sqrt t_14)))
(if (<
(if (> (/ t_12 t_6) (floor maxAniso))
(/ (sqrt t_12) (floor maxAniso))
(* t_6 (sqrt (/ 1.0 t_12))))
1.0)
(fmax
1.0
(*
(if (> t_13 (floor maxAniso)) (floor maxAniso) t_13)
(if t_16
(/ t_17 (floor maxAniso))
(/ (fabs (* (* (floor h) dX.u) (* dY.v (floor w)))) t_17))))
(if t_16 (floor maxAniso) t_15))))
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_u * floorf(w);
float t_1 = powf(floorf(w), 2.0f);
float t_2 = t_1 * dX_46_u;
float t_3 = dY_46_v * floorf(h);
float t_4 = dY_46_u * floorf(w);
float t_5 = floorf(h) * floorf(w);
float t_6 = fabsf((t_5 * fmaf(-dX_46_u, dY_46_v, (dY_46_u * dX_46_v))));
float t_7 = dX_46_v * floorf(h);
float t_8 = t_1 * dY_46_u;
float t_9 = powf(floorf(h), 2.0f);
float t_10 = t_9 * dY_46_v;
float t_11 = t_9 * dX_46_v;
float t_12 = fmaxf(fmaf(t_11, dX_46_v, (t_2 * dX_46_u)), fmaf(t_10, dY_46_v, (t_8 * dY_46_u)));
float t_13 = fmaxf(fmaf(t_2, dX_46_u, (t_11 * dX_46_v)), fmaf(t_8, dY_46_u, (t_10 * dY_46_v))) / fabsf((((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)) * t_5));
float t_14 = fmaxf(((t_7 * t_7) + (t_0 * t_0)), ((t_3 * t_3) + (t_4 * t_4)));
float t_15 = t_14 / fabsf(((t_4 * t_7) - (t_3 * t_0)));
int t_16 = t_15 > floorf(maxAniso);
float t_17 = sqrtf(t_14);
float tmp;
if ((t_12 / t_6) > floorf(maxAniso)) {
tmp = sqrtf(t_12) / floorf(maxAniso);
} else {
tmp = t_6 * sqrtf((1.0f / t_12));
}
float tmp_3;
if (tmp < 1.0f) {
float tmp_4;
if (t_13 > floorf(maxAniso)) {
tmp_4 = floorf(maxAniso);
} else {
tmp_4 = t_13;
}
float tmp_5;
if (t_16) {
tmp_5 = t_17 / floorf(maxAniso);
} else {
tmp_5 = fabsf(((floorf(h) * dX_46_u) * (dY_46_v * floorf(w)))) / t_17;
}
tmp_3 = fmaxf(1.0f, (tmp_4 * tmp_5));
} else if (t_16) {
tmp_3 = floorf(maxAniso);
} else {
tmp_3 = t_15;
}
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_u * floor(w)) t_1 = floor(w) ^ Float32(2.0) t_2 = Float32(t_1 * dX_46_u) t_3 = Float32(dY_46_v * floor(h)) t_4 = Float32(dY_46_u * floor(w)) t_5 = Float32(floor(h) * floor(w)) t_6 = abs(Float32(t_5 * fma(Float32(-dX_46_u), dY_46_v, Float32(dY_46_u * dX_46_v)))) t_7 = Float32(dX_46_v * floor(h)) t_8 = Float32(t_1 * dY_46_u) t_9 = floor(h) ^ Float32(2.0) t_10 = Float32(t_9 * dY_46_v) t_11 = Float32(t_9 * dX_46_v) t_12 = (fma(t_11, dX_46_v, Float32(t_2 * dX_46_u)) != fma(t_11, dX_46_v, Float32(t_2 * dX_46_u))) ? fma(t_10, dY_46_v, Float32(t_8 * dY_46_u)) : ((fma(t_10, dY_46_v, Float32(t_8 * dY_46_u)) != fma(t_10, dY_46_v, Float32(t_8 * dY_46_u))) ? fma(t_11, dX_46_v, Float32(t_2 * dX_46_u)) : max(fma(t_11, dX_46_v, Float32(t_2 * dX_46_u)), fma(t_10, dY_46_v, Float32(t_8 * dY_46_u)))) t_13 = Float32(((fma(t_2, dX_46_u, Float32(t_11 * dX_46_v)) != fma(t_2, dX_46_u, Float32(t_11 * dX_46_v))) ? fma(t_8, dY_46_u, Float32(t_10 * dY_46_v)) : ((fma(t_8, dY_46_u, Float32(t_10 * dY_46_v)) != fma(t_8, dY_46_u, Float32(t_10 * dY_46_v))) ? fma(t_2, dX_46_u, Float32(t_11 * dX_46_v)) : max(fma(t_2, dX_46_u, Float32(t_11 * dX_46_v)), fma(t_8, dY_46_u, Float32(t_10 * dY_46_v))))) / abs(Float32(Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_46_u)) * t_5))) t_14 = (Float32(Float32(t_7 * t_7) + Float32(t_0 * t_0)) != Float32(Float32(t_7 * t_7) + Float32(t_0 * t_0))) ? Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)) : ((Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)) != Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4))) ? Float32(Float32(t_7 * t_7) + Float32(t_0 * t_0)) : max(Float32(Float32(t_7 * t_7) + Float32(t_0 * t_0)), Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)))) t_15 = Float32(t_14 / abs(Float32(Float32(t_4 * t_7) - Float32(t_3 * t_0)))) t_16 = t_15 > floor(maxAniso) t_17 = sqrt(t_14) tmp = Float32(0.0) if (Float32(t_12 / t_6) > floor(maxAniso)) tmp = Float32(sqrt(t_12) / floor(maxAniso)); else tmp = Float32(t_6 * sqrt(Float32(Float32(1.0) / t_12))); end tmp_3 = Float32(0.0) if (tmp < Float32(1.0)) tmp_4 = Float32(0.0) if (t_13 > floor(maxAniso)) tmp_4 = floor(maxAniso); else tmp_4 = t_13; end tmp_5 = Float32(0.0) if (t_16) tmp_5 = Float32(t_17 / floor(maxAniso)); else tmp_5 = Float32(abs(Float32(Float32(floor(h) * dX_46_u) * Float32(dY_46_v * floor(w)))) / t_17); 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_16) tmp_3 = floor(maxAniso); else tmp_3 = t_15; end return tmp_3 end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.u \cdot \left\lfloor w\right\rfloor \\
t_1 := {\left(\left\lfloor w\right\rfloor \right)}^{2}\\
t_2 := t\_1 \cdot dX.u\\
t_3 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_4 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_5 := \left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \\
t_6 := \left|t\_5 \cdot \mathsf{fma}\left(-dX.u, dY.v, dY.u \cdot dX.v\right)\right|\\
t_7 := dX.v \cdot \left\lfloor h\right\rfloor \\
t_8 := t\_1 \cdot dY.u\\
t_9 := {\left(\left\lfloor h\right\rfloor \right)}^{2}\\
t_10 := t\_9 \cdot dY.v\\
t_11 := t\_9 \cdot dX.v\\
t_12 := \mathsf{max}\left(\mathsf{fma}\left(t\_11, dX.v, t\_2 \cdot dX.u\right), \mathsf{fma}\left(t\_10, dY.v, t\_8 \cdot dY.u\right)\right)\\
t_13 := \frac{\mathsf{max}\left(\mathsf{fma}\left(t\_2, dX.u, t\_11 \cdot dX.v\right), \mathsf{fma}\left(t\_8, dY.u, t\_10 \cdot dY.v\right)\right)}{\left|\left(dY.u \cdot dX.v - dY.v \cdot dX.u\right) \cdot t\_5\right|}\\
t_14 := \mathsf{max}\left(t\_7 \cdot t\_7 + t\_0 \cdot t\_0, t\_3 \cdot t\_3 + t\_4 \cdot t\_4\right)\\
t_15 := \frac{t\_14}{\left|t\_4 \cdot t\_7 - t\_3 \cdot t\_0\right|}\\
t_16 := t\_15 > \left\lfloor maxAniso\right\rfloor \\
t_17 := \sqrt{t\_14}\\
\mathbf{if}\;\begin{array}{l}
\mathbf{if}\;\frac{t\_12}{t\_6} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{\sqrt{t\_12}}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot \sqrt{\frac{1}{t\_12}}\\
\end{array} < 1:\\
\;\;\;\;\mathsf{max}\left(1, \begin{array}{l}
\mathbf{if}\;t\_13 > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;t\_13\\
\end{array} \cdot \begin{array}{l}
\mathbf{if}\;t\_16:\\
\;\;\;\;\frac{t\_17}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{\left|\left(\left\lfloor h\right\rfloor \cdot dX.u\right) \cdot \left(dY.v \cdot \left\lfloor w\right\rfloor \right)\right|}{t\_17}\\
\end{array}\right)\\
\mathbf{elif}\;t\_16:\\
\;\;\;\;\left\lfloor maxAniso\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;t\_15\\
\end{array}
\end{array}
Initial program 97.6%
Taylor expanded in dY.v around 0
Applied rewrites86.3%
Taylor expanded in dY.v around 0
Applied rewrites87.3%
Taylor expanded in dY.v around 0
Applied rewrites87.2%
Taylor expanded in dY.v around inf
*-commutativeN/A
associate-*r*N/A
associate-*r*N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-floor.f32N/A
lower-*.f32N/A
lower-floor.f3286.5
Applied rewrites87.1%
Final simplification87.2%
herbie shell --seed 2024282
(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))))))))