
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (* (floor w) dY.u))
(t_2 (* (floor w) dX.u))
(t_3 (+ (* t_2 t_2) (* t_0 t_0)))
(t_4 (* (floor h) dY.v))
(t_5 (+ (* t_1 t_1) (* t_4 t_4)))
(t_6 (/ 1.0 (sqrt (fmax t_3 t_5)))))
(if (>= t_3 t_5) (* t_6 t_2) (* t_6 t_1))))
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(w) * dY_46_u;
float t_2 = floorf(w) * dX_46_u;
float t_3 = (t_2 * t_2) + (t_0 * t_0);
float t_4 = floorf(h) * dY_46_v;
float t_5 = (t_1 * t_1) + (t_4 * t_4);
float t_6 = 1.0f / sqrtf(fmaxf(t_3, t_5));
float tmp;
if (t_3 >= t_5) {
tmp = t_6 * t_2;
} else {
tmp = t_6 * t_1;
}
return tmp;
}
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(w) * dY_46_u) t_2 = Float32(floor(w) * dX_46_u) t_3 = Float32(Float32(t_2 * t_2) + Float32(t_0 * t_0)) t_4 = Float32(floor(h) * dY_46_v) t_5 = Float32(Float32(t_1 * t_1) + Float32(t_4 * t_4)) t_6 = Float32(Float32(1.0) / sqrt(((t_3 != t_3) ? t_5 : ((t_5 != t_5) ? t_3 : max(t_3, t_5))))) tmp = Float32(0.0) if (t_3 >= t_5) tmp = Float32(t_6 * t_2); else tmp = Float32(t_6 * t_1); end return tmp end
function tmp_2 = 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(w) * dY_46_u; t_2 = floor(w) * dX_46_u; t_3 = (t_2 * t_2) + (t_0 * t_0); t_4 = floor(h) * dY_46_v; t_5 = (t_1 * t_1) + (t_4 * t_4); t_6 = single(1.0) / sqrt(max(t_3, t_5)); tmp = single(0.0); if (t_3 >= t_5) tmp = t_6 * t_2; else tmp = t_6 * t_1; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_3 := t\_2 \cdot t\_2 + t\_0 \cdot t\_0\\
t_4 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_5 := t\_1 \cdot t\_1 + t\_4 \cdot t\_4\\
t_6 := \frac{1}{\sqrt{\mathsf{max}\left(t\_3, t\_5\right)}}\\
\mathbf{if}\;t\_3 \geq t\_5:\\
\;\;\;\;t\_6 \cdot t\_2\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot t\_1\\
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 8 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 w) dY.u))
(t_2 (* (floor w) dX.u))
(t_3 (+ (* t_2 t_2) (* t_0 t_0)))
(t_4 (* (floor h) dY.v))
(t_5 (+ (* t_1 t_1) (* t_4 t_4)))
(t_6 (/ 1.0 (sqrt (fmax t_3 t_5)))))
(if (>= t_3 t_5) (* t_6 t_2) (* t_6 t_1))))
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(w) * dY_46_u;
float t_2 = floorf(w) * dX_46_u;
float t_3 = (t_2 * t_2) + (t_0 * t_0);
float t_4 = floorf(h) * dY_46_v;
float t_5 = (t_1 * t_1) + (t_4 * t_4);
float t_6 = 1.0f / sqrtf(fmaxf(t_3, t_5));
float tmp;
if (t_3 >= t_5) {
tmp = t_6 * t_2;
} else {
tmp = t_6 * t_1;
}
return tmp;
}
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(w) * dY_46_u) t_2 = Float32(floor(w) * dX_46_u) t_3 = Float32(Float32(t_2 * t_2) + Float32(t_0 * t_0)) t_4 = Float32(floor(h) * dY_46_v) t_5 = Float32(Float32(t_1 * t_1) + Float32(t_4 * t_4)) t_6 = Float32(Float32(1.0) / sqrt(((t_3 != t_3) ? t_5 : ((t_5 != t_5) ? t_3 : max(t_3, t_5))))) tmp = Float32(0.0) if (t_3 >= t_5) tmp = Float32(t_6 * t_2); else tmp = Float32(t_6 * t_1); end return tmp end
function tmp_2 = 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(w) * dY_46_u; t_2 = floor(w) * dX_46_u; t_3 = (t_2 * t_2) + (t_0 * t_0); t_4 = floor(h) * dY_46_v; t_5 = (t_1 * t_1) + (t_4 * t_4); t_6 = single(1.0) / sqrt(max(t_3, t_5)); tmp = single(0.0); if (t_3 >= t_5) tmp = t_6 * t_2; else tmp = t_6 * t_1; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_3 := t\_2 \cdot t\_2 + t\_0 \cdot t\_0\\
t_4 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_5 := t\_1 \cdot t\_1 + t\_4 \cdot t\_4\\
t_6 := \frac{1}{\sqrt{\mathsf{max}\left(t\_3, t\_5\right)}}\\
\mathbf{if}\;t\_3 \geq t\_5:\\
\;\;\;\;t\_6 \cdot t\_2\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot t\_1\\
\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.v (floor h)))
(t_2 (* dX.v (floor h)))
(t_3 (pow t_0 2.0))
(t_4 (+ (* t_2 t_2) (* t_0 t_0)))
(t_5 (* dY.u (floor w)))
(t_6 (+ (pow t_5 2.0) (pow t_1 2.0)))
(t_7 (+ (* t_1 t_1) (* t_5 t_5)))
(t_8 (* (/ dX.u (sqrt (fmax (+ t_3 (pow t_2 2.0)) t_6))) (floor w)))
(t_9 (/ 1.0 (sqrt (fmax t_4 t_7))))
(t_10 (if (>= t_4 t_7) (* t_9 t_0) (* t_9 t_5)))
(t_11 (* (/ 1.0 (pow (fmax (+ (exp (/ 0.0 0.0)) t_3) t_6) 0.5)) t_5))
(t_12 (if (>= t_4 (* (* (pow (floor w) 2.0) dY.u) dY.u)) t_8 t_11)))
(if (<= t_10 -0.9998000264167786)
t_12
(if (<= t_10 1.9999999494757503e-5)
(if (>= (* (* (pow (floor h) 2.0) dX.v) dX.v) t_7) t_8 t_11)
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_u * floorf(w);
float t_1 = dY_46_v * floorf(h);
float t_2 = dX_46_v * floorf(h);
float t_3 = powf(t_0, 2.0f);
float t_4 = (t_2 * t_2) + (t_0 * t_0);
float t_5 = dY_46_u * floorf(w);
float t_6 = powf(t_5, 2.0f) + powf(t_1, 2.0f);
float t_7 = (t_1 * t_1) + (t_5 * t_5);
float t_8 = (dX_46_u / sqrtf(fmaxf((t_3 + powf(t_2, 2.0f)), t_6))) * floorf(w);
float t_9 = 1.0f / sqrtf(fmaxf(t_4, t_7));
float tmp;
if (t_4 >= t_7) {
tmp = t_9 * t_0;
} else {
tmp = t_9 * t_5;
}
float t_10 = tmp;
float t_11 = (1.0f / powf(fmaxf((expf((0.0f / 0.0f)) + t_3), t_6), 0.5f)) * t_5;
float tmp_1;
if (t_4 >= ((powf(floorf(w), 2.0f) * dY_46_u) * dY_46_u)) {
tmp_1 = t_8;
} else {
tmp_1 = t_11;
}
float t_12 = tmp_1;
float tmp_2;
if (t_10 <= -0.9998000264167786f) {
tmp_2 = t_12;
} else if (t_10 <= 1.9999999494757503e-5f) {
float tmp_3;
if (((powf(floorf(h), 2.0f) * dX_46_v) * dX_46_v) >= t_7) {
tmp_3 = t_8;
} else {
tmp_3 = t_11;
}
tmp_2 = tmp_3;
} else {
tmp_2 = t_12;
}
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_v * floor(h)) t_2 = Float32(dX_46_v * floor(h)) t_3 = t_0 ^ Float32(2.0) t_4 = Float32(Float32(t_2 * t_2) + Float32(t_0 * t_0)) t_5 = Float32(dY_46_u * floor(w)) t_6 = Float32((t_5 ^ Float32(2.0)) + (t_1 ^ Float32(2.0))) t_7 = Float32(Float32(t_1 * t_1) + Float32(t_5 * t_5)) t_8 = Float32(Float32(dX_46_u / sqrt(((Float32(t_3 + (t_2 ^ Float32(2.0))) != Float32(t_3 + (t_2 ^ Float32(2.0)))) ? t_6 : ((t_6 != t_6) ? Float32(t_3 + (t_2 ^ Float32(2.0))) : max(Float32(t_3 + (t_2 ^ Float32(2.0))), t_6))))) * floor(w)) t_9 = Float32(Float32(1.0) / sqrt(((t_4 != t_4) ? t_7 : ((t_7 != t_7) ? t_4 : max(t_4, t_7))))) tmp = Float32(0.0) if (t_4 >= t_7) tmp = Float32(t_9 * t_0); else tmp = Float32(t_9 * t_5); end t_10 = tmp t_11 = Float32(Float32(Float32(1.0) / (((Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_3) != Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_3)) ? t_6 : ((t_6 != t_6) ? Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_3) : max(Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_3), t_6))) ^ Float32(0.5))) * t_5) tmp_1 = Float32(0.0) if (t_4 >= Float32(Float32((floor(w) ^ Float32(2.0)) * dY_46_u) * dY_46_u)) tmp_1 = t_8; else tmp_1 = t_11; end t_12 = tmp_1 tmp_2 = Float32(0.0) if (t_10 <= Float32(-0.9998000264167786)) tmp_2 = t_12; elseif (t_10 <= Float32(1.9999999494757503e-5)) tmp_3 = Float32(0.0) if (Float32(Float32((floor(h) ^ Float32(2.0)) * dX_46_v) * dX_46_v) >= t_7) tmp_3 = t_8; else tmp_3 = t_11; end tmp_2 = tmp_3; else tmp_2 = t_12; 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_v * floor(h); t_2 = dX_46_v * floor(h); t_3 = t_0 ^ single(2.0); t_4 = (t_2 * t_2) + (t_0 * t_0); t_5 = dY_46_u * floor(w); t_6 = (t_5 ^ single(2.0)) + (t_1 ^ single(2.0)); t_7 = (t_1 * t_1) + (t_5 * t_5); t_8 = (dX_46_u / sqrt(max((t_3 + (t_2 ^ single(2.0))), t_6))) * floor(w); t_9 = single(1.0) / sqrt(max(t_4, t_7)); tmp = single(0.0); if (t_4 >= t_7) tmp = t_9 * t_0; else tmp = t_9 * t_5; end t_10 = tmp; t_11 = (single(1.0) / (max((exp((single(0.0) / single(0.0))) + t_3), t_6) ^ single(0.5))) * t_5; tmp_2 = single(0.0); if (t_4 >= (((floor(w) ^ single(2.0)) * dY_46_u) * dY_46_u)) tmp_2 = t_8; else tmp_2 = t_11; end t_12 = tmp_2; tmp_3 = single(0.0); if (t_10 <= single(-0.9998000264167786)) tmp_3 = t_12; elseif (t_10 <= single(1.9999999494757503e-5)) tmp_4 = single(0.0); if ((((floor(h) ^ single(2.0)) * dX_46_v) * dX_46_v) >= t_7) tmp_4 = t_8; else tmp_4 = t_11; end tmp_3 = tmp_4; else tmp_3 = t_12; 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.v \cdot \left\lfloor h\right\rfloor \\
t_2 := dX.v \cdot \left\lfloor h\right\rfloor \\
t_3 := {t\_0}^{2}\\
t_4 := t\_2 \cdot t\_2 + t\_0 \cdot t\_0\\
t_5 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_6 := {t\_5}^{2} + {t\_1}^{2}\\
t_7 := t\_1 \cdot t\_1 + t\_5 \cdot t\_5\\
t_8 := \frac{dX.u}{\sqrt{\mathsf{max}\left(t\_3 + {t\_2}^{2}, t\_6\right)}} \cdot \left\lfloor w\right\rfloor \\
t_9 := \frac{1}{\sqrt{\mathsf{max}\left(t\_4, t\_7\right)}}\\
t_10 := \begin{array}{l}
\mathbf{if}\;t\_4 \geq t\_7:\\
\;\;\;\;t\_9 \cdot t\_0\\
\mathbf{else}:\\
\;\;\;\;t\_9 \cdot t\_5\\
\end{array}\\
t_11 := \frac{1}{{\left(\mathsf{max}\left(e^{\frac{0}{0}} + t\_3, t\_6\right)\right)}^{0.5}} \cdot t\_5\\
t_12 := \begin{array}{l}
\mathbf{if}\;t\_4 \geq \left({\left(\left\lfloor w\right\rfloor \right)}^{2} \cdot dY.u\right) \cdot dY.u:\\
\;\;\;\;t\_8\\
\mathbf{else}:\\
\;\;\;\;t\_11\\
\end{array}\\
\mathbf{if}\;t\_10 \leq -0.9998000264167786:\\
\;\;\;\;t\_12\\
\mathbf{elif}\;t\_10 \leq 1.9999999494757503 \cdot 10^{-5}:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;\left({\left(\left\lfloor h\right\rfloor \right)}^{2} \cdot dX.v\right) \cdot dX.v \geq t\_7:\\
\;\;\;\;t\_8\\
\mathbf{else}:\\
\;\;\;\;t\_11\\
\end{array}\\
\mathbf{else}:\\
\;\;\;\;t\_12\\
\end{array}
\end{array}
if (if (>=.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v)))) (*.f32 (/.f32 #s(literal 1 binary32) (sqrt.f32 (fmax.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v)))))) (*.f32 (floor.f32 w) dX.u)) (*.f32 (/.f32 #s(literal 1 binary32) (sqrt.f32 (fmax.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v)))))) (*.f32 (floor.f32 w) dY.u))) < -0.999800026 or 1.99999995e-5 < (if (>=.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v)))) (*.f32 (/.f32 #s(literal 1 binary32) (sqrt.f32 (fmax.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v)))))) (*.f32 (floor.f32 w) dX.u)) (*.f32 (/.f32 #s(literal 1 binary32) (sqrt.f32 (fmax.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v)))))) (*.f32 (floor.f32 w) dY.u))) Initial program 99.3%
lift-*.f32N/A
lift-/.f32N/A
associate-*l/N/A
*-rgt-identityN/A
Applied rewrites99.2%
lift-sqrt.f32N/A
pow1/2N/A
lower-pow.f3299.2
Applied rewrites99.2%
Taylor expanded in dY.v around 0
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3299.2
Applied rewrites99.2%
if -0.999800026 < (if (>=.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v)))) (*.f32 (/.f32 #s(literal 1 binary32) (sqrt.f32 (fmax.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v)))))) (*.f32 (floor.f32 w) dX.u)) (*.f32 (/.f32 #s(literal 1 binary32) (sqrt.f32 (fmax.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v)))))) (*.f32 (floor.f32 w) dY.u))) < 1.99999995e-5Initial program 59.0%
lift-*.f32N/A
lift-/.f32N/A
associate-*l/N/A
*-rgt-identityN/A
Applied rewrites59.2%
lift-sqrt.f32N/A
pow1/2N/A
lower-pow.f3259.2
Applied rewrites59.2%
Taylor expanded in dX.u around 0
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3261.8
Applied rewrites61.8%
Final simplification74.2%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dX.u (floor w)))
(t_1 (pow t_0 2.0))
(t_2 (* dY.u (floor w)))
(t_3 (* dX.v (floor h)))
(t_4 (* dY.v (floor h)))
(t_5 (+ (pow t_2 2.0) (pow t_4 2.0))))
(if (>= (+ (* t_3 t_3) (* t_0 t_0)) (+ (* t_4 t_4) (* t_2 t_2)))
(/
(/ (* (- dX.u) (floor w)) -1.0)
(sqrt (fmax (+ t_1 (pow t_3 2.0)) t_5)))
(* (/ 1.0 (pow (fmax (+ (exp (/ 0.0 0.0)) t_1) t_5) 0.5)) t_2))))
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(t_0, 2.0f);
float t_2 = dY_46_u * floorf(w);
float t_3 = dX_46_v * floorf(h);
float t_4 = dY_46_v * floorf(h);
float t_5 = powf(t_2, 2.0f) + powf(t_4, 2.0f);
float tmp;
if (((t_3 * t_3) + (t_0 * t_0)) >= ((t_4 * t_4) + (t_2 * t_2))) {
tmp = ((-dX_46_u * floorf(w)) / -1.0f) / sqrtf(fmaxf((t_1 + powf(t_3, 2.0f)), t_5));
} else {
tmp = (1.0f / powf(fmaxf((expf((0.0f / 0.0f)) + t_1), t_5), 0.5f)) * t_2;
}
return tmp;
}
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 = t_0 ^ Float32(2.0) t_2 = Float32(dY_46_u * floor(w)) t_3 = Float32(dX_46_v * floor(h)) t_4 = Float32(dY_46_v * floor(h)) t_5 = Float32((t_2 ^ Float32(2.0)) + (t_4 ^ Float32(2.0))) tmp = Float32(0.0) if (Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) >= Float32(Float32(t_4 * t_4) + Float32(t_2 * t_2))) tmp = Float32(Float32(Float32(Float32(-dX_46_u) * floor(w)) / Float32(-1.0)) / sqrt(((Float32(t_1 + (t_3 ^ Float32(2.0))) != Float32(t_1 + (t_3 ^ Float32(2.0)))) ? t_5 : ((t_5 != t_5) ? Float32(t_1 + (t_3 ^ Float32(2.0))) : max(Float32(t_1 + (t_3 ^ Float32(2.0))), t_5))))); else tmp = Float32(Float32(Float32(1.0) / (((Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_1) != Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_1)) ? t_5 : ((t_5 != t_5) ? Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_1) : max(Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_1), t_5))) ^ Float32(0.5))) * t_2); end return tmp end
function tmp_2 = 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 = t_0 ^ single(2.0); t_2 = dY_46_u * floor(w); t_3 = dX_46_v * floor(h); t_4 = dY_46_v * floor(h); t_5 = (t_2 ^ single(2.0)) + (t_4 ^ single(2.0)); tmp = single(0.0); if (((t_3 * t_3) + (t_0 * t_0)) >= ((t_4 * t_4) + (t_2 * t_2))) tmp = ((-dX_46_u * floor(w)) / single(-1.0)) / sqrt(max((t_1 + (t_3 ^ single(2.0))), t_5)); else tmp = (single(1.0) / (max((exp((single(0.0) / single(0.0))) + t_1), t_5) ^ single(0.5))) * t_2; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.u \cdot \left\lfloor w\right\rfloor \\
t_1 := {t\_0}^{2}\\
t_2 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_3 := dX.v \cdot \left\lfloor h\right\rfloor \\
t_4 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_5 := {t\_2}^{2} + {t\_4}^{2}\\
\mathbf{if}\;t\_3 \cdot t\_3 + t\_0 \cdot t\_0 \geq t\_4 \cdot t\_4 + t\_2 \cdot t\_2:\\
\;\;\;\;\frac{\frac{\left(-dX.u\right) \cdot \left\lfloor w\right\rfloor }{-1}}{\sqrt{\mathsf{max}\left(t\_1 + {t\_3}^{2}, t\_5\right)}}\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{{\left(\mathsf{max}\left(e^{\frac{0}{0}} + t\_1, t\_5\right)\right)}^{0.5}} \cdot t\_2\\
\end{array}
\end{array}
Initial program 72.4%
lift-*.f32N/A
lift-/.f32N/A
associate-*l/N/A
frac-2negN/A
Applied rewrites72.5%
lift-sqrt.f32N/A
pow1/2N/A
lower-pow.f3272.5
Applied rewrites72.5%
Final simplification72.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dY.v (floor h)))
(t_1 (* dY.u (floor w)))
(t_2 (+ (pow t_1 2.0) (pow t_0 2.0)))
(t_3 (* dX.v (floor h)))
(t_4 (* dX.u (floor w)))
(t_5 (pow t_4 2.0)))
(if (>= (+ (* t_3 t_3) (* t_4 t_4)) (+ (* t_0 t_0) (* t_1 t_1)))
(* (/ dX.u (sqrt (fmax (+ t_5 (pow t_3 2.0)) t_2))) (floor w))
(* (/ 1.0 (pow (fmax (+ (exp (/ 0.0 0.0)) t_5) t_2) 0.5)) t_1))))
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_v * floorf(h);
float t_1 = dY_46_u * floorf(w);
float t_2 = powf(t_1, 2.0f) + powf(t_0, 2.0f);
float t_3 = dX_46_v * floorf(h);
float t_4 = dX_46_u * floorf(w);
float t_5 = powf(t_4, 2.0f);
float tmp;
if (((t_3 * t_3) + (t_4 * t_4)) >= ((t_0 * t_0) + (t_1 * t_1))) {
tmp = (dX_46_u / sqrtf(fmaxf((t_5 + powf(t_3, 2.0f)), t_2))) * floorf(w);
} else {
tmp = (1.0f / powf(fmaxf((expf((0.0f / 0.0f)) + t_5), t_2), 0.5f)) * t_1;
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(dY_46_v * floor(h)) t_1 = Float32(dY_46_u * floor(w)) t_2 = Float32((t_1 ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) t_3 = Float32(dX_46_v * floor(h)) t_4 = Float32(dX_46_u * floor(w)) t_5 = t_4 ^ Float32(2.0) tmp = Float32(0.0) if (Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)) >= Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1))) tmp = Float32(Float32(dX_46_u / sqrt(((Float32(t_5 + (t_3 ^ Float32(2.0))) != Float32(t_5 + (t_3 ^ Float32(2.0)))) ? t_2 : ((t_2 != t_2) ? Float32(t_5 + (t_3 ^ Float32(2.0))) : max(Float32(t_5 + (t_3 ^ Float32(2.0))), t_2))))) * floor(w)); else tmp = Float32(Float32(Float32(1.0) / (((Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_5) != Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_5)) ? t_2 : ((t_2 != t_2) ? Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_5) : max(Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_5), t_2))) ^ Float32(0.5))) * t_1); end return tmp end
function tmp_2 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = dY_46_v * floor(h); t_1 = dY_46_u * floor(w); t_2 = (t_1 ^ single(2.0)) + (t_0 ^ single(2.0)); t_3 = dX_46_v * floor(h); t_4 = dX_46_u * floor(w); t_5 = t_4 ^ single(2.0); tmp = single(0.0); if (((t_3 * t_3) + (t_4 * t_4)) >= ((t_0 * t_0) + (t_1 * t_1))) tmp = (dX_46_u / sqrt(max((t_5 + (t_3 ^ single(2.0))), t_2))) * floor(w); else tmp = (single(1.0) / (max((exp((single(0.0) / single(0.0))) + t_5), t_2) ^ single(0.5))) * t_1; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_1 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_2 := {t\_1}^{2} + {t\_0}^{2}\\
t_3 := dX.v \cdot \left\lfloor h\right\rfloor \\
t_4 := dX.u \cdot \left\lfloor w\right\rfloor \\
t_5 := {t\_4}^{2}\\
\mathbf{if}\;t\_3 \cdot t\_3 + t\_4 \cdot t\_4 \geq t\_0 \cdot t\_0 + t\_1 \cdot t\_1:\\
\;\;\;\;\frac{dX.u}{\sqrt{\mathsf{max}\left(t\_5 + {t\_3}^{2}, t\_2\right)}} \cdot \left\lfloor w\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;\frac{1}{{\left(\mathsf{max}\left(e^{\frac{0}{0}} + t\_5, t\_2\right)\right)}^{0.5}} \cdot t\_1\\
\end{array}
\end{array}
Initial program 72.4%
lift-*.f32N/A
lift-/.f32N/A
associate-*l/N/A
*-rgt-identityN/A
Applied rewrites72.5%
lift-sqrt.f32N/A
pow1/2N/A
lower-pow.f3272.5
Applied rewrites72.5%
Final simplification72.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (* dX.u (floor w)) 2.0))
(t_1 (* dY.v (floor h)))
(t_2 (* dY.u (floor w)))
(t_3 (+ (* t_1 t_1) (* t_2 t_2)))
(t_4 (+ (pow t_2 2.0) (pow t_1 2.0)))
(t_5 (sqrt (fmax (+ t_0 (pow (* dX.v (floor h)) 2.0)) t_4)))
(t_6 (* (/ 1.0 (pow (fmax (+ (exp (/ 0.0 0.0)) t_0) t_4) 0.5)) t_2)))
(if (<= dX.v 0.0009879999561235309)
(if (>= (* (* (pow (floor w) 2.0) dX.u) dX.u) t_3)
(/ (/ (* (- dX.u) (floor w)) -1.0) t_5)
t_6)
(if (>= (* (* (pow (floor h) 2.0) dX.v) dX.v) t_3)
(* (/ dX.u t_5) (floor w))
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 = powf((dX_46_u * floorf(w)), 2.0f);
float t_1 = dY_46_v * floorf(h);
float t_2 = dY_46_u * floorf(w);
float t_3 = (t_1 * t_1) + (t_2 * t_2);
float t_4 = powf(t_2, 2.0f) + powf(t_1, 2.0f);
float t_5 = sqrtf(fmaxf((t_0 + powf((dX_46_v * floorf(h)), 2.0f)), t_4));
float t_6 = (1.0f / powf(fmaxf((expf((0.0f / 0.0f)) + t_0), t_4), 0.5f)) * t_2;
float tmp_1;
if (dX_46_v <= 0.0009879999561235309f) {
float tmp_2;
if (((powf(floorf(w), 2.0f) * dX_46_u) * dX_46_u) >= t_3) {
tmp_2 = ((-dX_46_u * floorf(w)) / -1.0f) / t_5;
} else {
tmp_2 = t_6;
}
tmp_1 = tmp_2;
} else if (((powf(floorf(h), 2.0f) * dX_46_v) * dX_46_v) >= t_3) {
tmp_1 = (dX_46_u / t_5) * floorf(w);
} else {
tmp_1 = t_6;
}
return tmp_1;
}
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)) ^ Float32(2.0) t_1 = Float32(dY_46_v * floor(h)) t_2 = Float32(dY_46_u * floor(w)) t_3 = Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) t_4 = Float32((t_2 ^ Float32(2.0)) + (t_1 ^ Float32(2.0))) t_5 = sqrt(((Float32(t_0 + (Float32(dX_46_v * floor(h)) ^ Float32(2.0))) != Float32(t_0 + (Float32(dX_46_v * floor(h)) ^ Float32(2.0)))) ? t_4 : ((t_4 != t_4) ? Float32(t_0 + (Float32(dX_46_v * floor(h)) ^ Float32(2.0))) : max(Float32(t_0 + (Float32(dX_46_v * floor(h)) ^ Float32(2.0))), t_4)))) t_6 = Float32(Float32(Float32(1.0) / (((Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_0) != Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_0)) ? t_4 : ((t_4 != t_4) ? Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_0) : max(Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_0), t_4))) ^ Float32(0.5))) * t_2) tmp_1 = Float32(0.0) if (dX_46_v <= Float32(0.0009879999561235309)) tmp_2 = Float32(0.0) if (Float32(Float32((floor(w) ^ Float32(2.0)) * dX_46_u) * dX_46_u) >= t_3) tmp_2 = Float32(Float32(Float32(Float32(-dX_46_u) * floor(w)) / Float32(-1.0)) / t_5); else tmp_2 = t_6; end tmp_1 = tmp_2; elseif (Float32(Float32((floor(h) ^ Float32(2.0)) * dX_46_v) * dX_46_v) >= t_3) tmp_1 = Float32(Float32(dX_46_u / t_5) * floor(w)); else tmp_1 = t_6; end return tmp_1 end
function tmp_4 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = (dX_46_u * floor(w)) ^ single(2.0); t_1 = dY_46_v * floor(h); t_2 = dY_46_u * floor(w); t_3 = (t_1 * t_1) + (t_2 * t_2); t_4 = (t_2 ^ single(2.0)) + (t_1 ^ single(2.0)); t_5 = sqrt(max((t_0 + ((dX_46_v * floor(h)) ^ single(2.0))), t_4)); t_6 = (single(1.0) / (max((exp((single(0.0) / single(0.0))) + t_0), t_4) ^ single(0.5))) * t_2; tmp_2 = single(0.0); if (dX_46_v <= single(0.0009879999561235309)) tmp_3 = single(0.0); if ((((floor(w) ^ single(2.0)) * dX_46_u) * dX_46_u) >= t_3) tmp_3 = ((-dX_46_u * floor(w)) / single(-1.0)) / t_5; else tmp_3 = t_6; end tmp_2 = tmp_3; elseif ((((floor(h) ^ single(2.0)) * dX_46_v) * dX_46_v) >= t_3) tmp_2 = (dX_46_u / t_5) * floor(w); else tmp_2 = t_6; end tmp_4 = tmp_2; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(dX.u \cdot \left\lfloor w\right\rfloor \right)}^{2}\\
t_1 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_2 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_3 := t\_1 \cdot t\_1 + t\_2 \cdot t\_2\\
t_4 := {t\_2}^{2} + {t\_1}^{2}\\
t_5 := \sqrt{\mathsf{max}\left(t\_0 + {\left(dX.v \cdot \left\lfloor h\right\rfloor \right)}^{2}, t\_4\right)}\\
t_6 := \frac{1}{{\left(\mathsf{max}\left(e^{\frac{0}{0}} + t\_0, t\_4\right)\right)}^{0.5}} \cdot t\_2\\
\mathbf{if}\;dX.v \leq 0.0009879999561235309:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;\left({\left(\left\lfloor w\right\rfloor \right)}^{2} \cdot dX.u\right) \cdot dX.u \geq t\_3:\\
\;\;\;\;\frac{\frac{\left(-dX.u\right) \cdot \left\lfloor w\right\rfloor }{-1}}{t\_5}\\
\mathbf{else}:\\
\;\;\;\;t\_6\\
\end{array}\\
\mathbf{elif}\;\left({\left(\left\lfloor h\right\rfloor \right)}^{2} \cdot dX.v\right) \cdot dX.v \geq t\_3:\\
\;\;\;\;\frac{dX.u}{t\_5} \cdot \left\lfloor w\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;t\_6\\
\end{array}
\end{array}
if dX.v < 9.87999956e-4Initial program 74.6%
lift-*.f32N/A
lift-/.f32N/A
associate-*l/N/A
frac-2negN/A
Applied rewrites74.8%
lift-sqrt.f32N/A
pow1/2N/A
lower-pow.f3274.8
Applied rewrites74.8%
Taylor expanded in dX.u around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3269.2
Applied rewrites69.2%
if 9.87999956e-4 < dX.v Initial program 66.7%
lift-*.f32N/A
lift-/.f32N/A
associate-*l/N/A
*-rgt-identityN/A
Applied rewrites67.0%
lift-sqrt.f32N/A
pow1/2N/A
lower-pow.f3267.0
Applied rewrites67.0%
Taylor expanded in dX.u around 0
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3266.6
Applied rewrites66.6%
Final simplification68.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dY.v (floor h)))
(t_1 (* dY.u (floor w)))
(t_2 (+ (pow t_1 2.0) (pow t_0 2.0)))
(t_3 (pow (* dX.u (floor w)) 2.0)))
(if (>= (* (* (pow (floor h) 2.0) dX.v) dX.v) (+ (* t_0 t_0) (* t_1 t_1)))
(*
(/ dX.u (sqrt (fmax (+ t_3 (pow (* dX.v (floor h)) 2.0)) t_2)))
(floor w))
(* (/ 1.0 (pow (fmax (+ (exp (/ 0.0 0.0)) t_3) t_2) 0.5)) t_1))))
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_v * floorf(h);
float t_1 = dY_46_u * floorf(w);
float t_2 = powf(t_1, 2.0f) + powf(t_0, 2.0f);
float t_3 = powf((dX_46_u * floorf(w)), 2.0f);
float tmp;
if (((powf(floorf(h), 2.0f) * dX_46_v) * dX_46_v) >= ((t_0 * t_0) + (t_1 * t_1))) {
tmp = (dX_46_u / sqrtf(fmaxf((t_3 + powf((dX_46_v * floorf(h)), 2.0f)), t_2))) * floorf(w);
} else {
tmp = (1.0f / powf(fmaxf((expf((0.0f / 0.0f)) + t_3), t_2), 0.5f)) * t_1;
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(dY_46_v * floor(h)) t_1 = Float32(dY_46_u * floor(w)) t_2 = Float32((t_1 ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) t_3 = Float32(dX_46_u * floor(w)) ^ Float32(2.0) tmp = Float32(0.0) if (Float32(Float32((floor(h) ^ Float32(2.0)) * dX_46_v) * dX_46_v) >= Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1))) tmp = Float32(Float32(dX_46_u / sqrt(((Float32(t_3 + (Float32(dX_46_v * floor(h)) ^ Float32(2.0))) != Float32(t_3 + (Float32(dX_46_v * floor(h)) ^ Float32(2.0)))) ? t_2 : ((t_2 != t_2) ? Float32(t_3 + (Float32(dX_46_v * floor(h)) ^ Float32(2.0))) : max(Float32(t_3 + (Float32(dX_46_v * floor(h)) ^ Float32(2.0))), t_2))))) * floor(w)); else tmp = Float32(Float32(Float32(1.0) / (((Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_3) != Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_3)) ? t_2 : ((t_2 != t_2) ? Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_3) : max(Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + t_3), t_2))) ^ Float32(0.5))) * t_1); end return tmp end
function tmp_2 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = dY_46_v * floor(h); t_1 = dY_46_u * floor(w); t_2 = (t_1 ^ single(2.0)) + (t_0 ^ single(2.0)); t_3 = (dX_46_u * floor(w)) ^ single(2.0); tmp = single(0.0); if ((((floor(h) ^ single(2.0)) * dX_46_v) * dX_46_v) >= ((t_0 * t_0) + (t_1 * t_1))) tmp = (dX_46_u / sqrt(max((t_3 + ((dX_46_v * floor(h)) ^ single(2.0))), t_2))) * floor(w); else tmp = (single(1.0) / (max((exp((single(0.0) / single(0.0))) + t_3), t_2) ^ single(0.5))) * t_1; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_1 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_2 := {t\_1}^{2} + {t\_0}^{2}\\
t_3 := {\left(dX.u \cdot \left\lfloor w\right\rfloor \right)}^{2}\\
\mathbf{if}\;\left({\left(\left\lfloor h\right\rfloor \right)}^{2} \cdot dX.v\right) \cdot dX.v \geq t\_0 \cdot t\_0 + t\_1 \cdot t\_1:\\
\;\;\;\;\frac{dX.u}{\sqrt{\mathsf{max}\left(t\_3 + {\left(dX.v \cdot \left\lfloor h\right\rfloor \right)}^{2}, t\_2\right)}} \cdot \left\lfloor w\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;\frac{1}{{\left(\mathsf{max}\left(e^{\frac{0}{0}} + t\_3, t\_2\right)\right)}^{0.5}} \cdot t\_1\\
\end{array}
\end{array}
Initial program 72.4%
lift-*.f32N/A
lift-/.f32N/A
associate-*l/N/A
*-rgt-identityN/A
Applied rewrites72.5%
lift-sqrt.f32N/A
pow1/2N/A
lower-pow.f3272.5
Applied rewrites72.5%
Taylor expanded in dX.u around 0
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3266.4
Applied rewrites66.4%
Final simplification66.4%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dX.u (floor w)))
(t_1 (* dY.v (floor h)))
(t_2 (pow (floor w) 2.0))
(t_3 (* dY.u (floor w)))
(t_4 (pow t_3 2.0))
(t_5 (* dX.v (floor h)))
(t_6 (+ (* t_5 t_5) (* t_0 t_0)))
(t_7 (/ 1.0 (sqrt (fmax t_6 (+ (* t_1 t_1) (* t_3 t_3))))))
(t_8 (pow (floor h) 2.0)))
(if (<= dY.v 15000.0)
(if (>= (* (* t_2 dX.u) dX.u) (* (* t_2 dY.u) dY.u))
(* t_7 t_0)
(* (/ 1.0 (sqrt (fmax t_6 (fma t_8 (* dY.v dY.v) t_4)))) t_3))
(if (>= (* (* t_8 dX.v) dX.v) (* (* t_8 dY.v) dY.v))
(*
(/
1.0
(pow
(exp
(log
(fmax (+ (exp (/ 0.0 0.0)) (pow t_0 2.0)) (+ t_4 (pow t_1 2.0)))))
0.5))
t_0)
(* t_7 t_3)))))
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_v * floorf(h);
float t_2 = powf(floorf(w), 2.0f);
float t_3 = dY_46_u * floorf(w);
float t_4 = powf(t_3, 2.0f);
float t_5 = dX_46_v * floorf(h);
float t_6 = (t_5 * t_5) + (t_0 * t_0);
float t_7 = 1.0f / sqrtf(fmaxf(t_6, ((t_1 * t_1) + (t_3 * t_3))));
float t_8 = powf(floorf(h), 2.0f);
float tmp_1;
if (dY_46_v <= 15000.0f) {
float tmp_2;
if (((t_2 * dX_46_u) * dX_46_u) >= ((t_2 * dY_46_u) * dY_46_u)) {
tmp_2 = t_7 * t_0;
} else {
tmp_2 = (1.0f / sqrtf(fmaxf(t_6, fmaf(t_8, (dY_46_v * dY_46_v), t_4)))) * t_3;
}
tmp_1 = tmp_2;
} else if (((t_8 * dX_46_v) * dX_46_v) >= ((t_8 * dY_46_v) * dY_46_v)) {
tmp_1 = (1.0f / powf(expf(logf(fmaxf((expf((0.0f / 0.0f)) + powf(t_0, 2.0f)), (t_4 + powf(t_1, 2.0f))))), 0.5f)) * t_0;
} else {
tmp_1 = t_7 * t_3;
}
return tmp_1;
}
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_v * floor(h)) t_2 = floor(w) ^ Float32(2.0) t_3 = Float32(dY_46_u * floor(w)) t_4 = t_3 ^ Float32(2.0) t_5 = Float32(dX_46_v * floor(h)) t_6 = Float32(Float32(t_5 * t_5) + Float32(t_0 * t_0)) t_7 = Float32(Float32(1.0) / sqrt(((t_6 != t_6) ? Float32(Float32(t_1 * t_1) + Float32(t_3 * t_3)) : ((Float32(Float32(t_1 * t_1) + Float32(t_3 * t_3)) != Float32(Float32(t_1 * t_1) + Float32(t_3 * t_3))) ? t_6 : max(t_6, Float32(Float32(t_1 * t_1) + Float32(t_3 * t_3))))))) t_8 = floor(h) ^ Float32(2.0) tmp_1 = Float32(0.0) if (dY_46_v <= Float32(15000.0)) tmp_2 = Float32(0.0) if (Float32(Float32(t_2 * dX_46_u) * dX_46_u) >= Float32(Float32(t_2 * dY_46_u) * dY_46_u)) tmp_2 = Float32(t_7 * t_0); else tmp_2 = Float32(Float32(Float32(1.0) / sqrt(((t_6 != t_6) ? fma(t_8, Float32(dY_46_v * dY_46_v), t_4) : ((fma(t_8, Float32(dY_46_v * dY_46_v), t_4) != fma(t_8, Float32(dY_46_v * dY_46_v), t_4)) ? t_6 : max(t_6, fma(t_8, Float32(dY_46_v * dY_46_v), t_4)))))) * t_3); end tmp_1 = tmp_2; elseif (Float32(Float32(t_8 * dX_46_v) * dX_46_v) >= Float32(Float32(t_8 * dY_46_v) * dY_46_v)) tmp_1 = Float32(Float32(Float32(1.0) / (exp(log(((Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + (t_0 ^ Float32(2.0))) != Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + (t_0 ^ Float32(2.0)))) ? Float32(t_4 + (t_1 ^ Float32(2.0))) : ((Float32(t_4 + (t_1 ^ Float32(2.0))) != Float32(t_4 + (t_1 ^ Float32(2.0)))) ? Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + (t_0 ^ Float32(2.0))) : max(Float32(exp(Float32(Float32(0.0) / Float32(0.0))) + (t_0 ^ Float32(2.0))), Float32(t_4 + (t_1 ^ Float32(2.0)))))))) ^ Float32(0.5))) * t_0); else tmp_1 = Float32(t_7 * t_3); end return tmp_1 end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.u \cdot \left\lfloor w\right\rfloor \\
t_1 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_2 := {\left(\left\lfloor w\right\rfloor \right)}^{2}\\
t_3 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_4 := {t\_3}^{2}\\
t_5 := dX.v \cdot \left\lfloor h\right\rfloor \\
t_6 := t\_5 \cdot t\_5 + t\_0 \cdot t\_0\\
t_7 := \frac{1}{\sqrt{\mathsf{max}\left(t\_6, t\_1 \cdot t\_1 + t\_3 \cdot t\_3\right)}}\\
t_8 := {\left(\left\lfloor h\right\rfloor \right)}^{2}\\
\mathbf{if}\;dY.v \leq 15000:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;\left(t\_2 \cdot dX.u\right) \cdot dX.u \geq \left(t\_2 \cdot dY.u\right) \cdot dY.u:\\
\;\;\;\;t\_7 \cdot t\_0\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\sqrt{\mathsf{max}\left(t\_6, \mathsf{fma}\left(t\_8, dY.v \cdot dY.v, t\_4\right)\right)}} \cdot t\_3\\
\end{array}\\
\mathbf{elif}\;\left(t\_8 \cdot dX.v\right) \cdot dX.v \geq \left(t\_8 \cdot dY.v\right) \cdot dY.v:\\
\;\;\;\;\frac{1}{{\left(e^{\log \left(\mathsf{max}\left(e^{\frac{0}{0}} + {t\_0}^{2}, t\_4 + {t\_1}^{2}\right)\right)}\right)}^{0.5}} \cdot t\_0\\
\mathbf{else}:\\
\;\;\;\;t\_7 \cdot t\_3\\
\end{array}
\end{array}
if dY.v < 15000Initial program 73.8%
lift-+.f32N/A
+-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
lift-*.f32N/A
swap-sqrN/A
pow2N/A
lower-fma.f32N/A
lower-pow.f32N/A
lower-*.f3247.8
lift-*.f32N/A
pow2N/A
lower-pow.f3247.4
lift-*.f32N/A
*-commutativeN/A
lower-*.f3247.4
Applied rewrites47.4%
Taylor expanded in dY.v around 0
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3246.8
Applied rewrites46.8%
Taylor expanded in dX.u around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3240.3
Applied rewrites40.3%
if 15000 < dY.v Initial program 68.0%
Taylor expanded in dX.u around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3262.4
Applied rewrites62.4%
lift-sqrt.f32N/A
pow1/2N/A
pow-to-expN/A
exp-prodN/A
lower-pow.f32N/A
Applied rewrites59.0%
Taylor expanded in dY.v around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3255.0
Applied rewrites55.0%
Taylor expanded in dX.u around 0
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3259.1
Applied rewrites59.1%
Final simplification45.0%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dX.u (floor w)))
(t_1 (* dY.v (floor h)))
(t_2 (* dY.u (floor w)))
(t_3 (pow (floor w) 2.0))
(t_4 (* (* t_3 dY.u) dY.u))
(t_5 (* dX.v (floor h)))
(t_6 (+ (* t_5 t_5) (* t_0 t_0)))
(t_7 (* (/ 1.0 (sqrt (fmax t_6 (+ (* t_1 t_1) (* t_2 t_2))))) t_0))
(t_8 (pow (floor h) 2.0))
(t_9
(*
(/ 1.0 (sqrt (fmax t_6 (fma t_8 (* dY.v dY.v) (pow t_2 2.0)))))
t_2)))
(if (<= dX.v 122.0)
(if (>= (* (* t_3 dX.u) dX.u) t_4) t_7 t_9)
(if (>= (* (* t_8 dX.v) dX.v) t_4) t_7 t_9))))
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_v * floorf(h);
float t_2 = dY_46_u * floorf(w);
float t_3 = powf(floorf(w), 2.0f);
float t_4 = (t_3 * dY_46_u) * dY_46_u;
float t_5 = dX_46_v * floorf(h);
float t_6 = (t_5 * t_5) + (t_0 * t_0);
float t_7 = (1.0f / sqrtf(fmaxf(t_6, ((t_1 * t_1) + (t_2 * t_2))))) * t_0;
float t_8 = powf(floorf(h), 2.0f);
float t_9 = (1.0f / sqrtf(fmaxf(t_6, fmaf(t_8, (dY_46_v * dY_46_v), powf(t_2, 2.0f))))) * t_2;
float tmp_1;
if (dX_46_v <= 122.0f) {
float tmp_2;
if (((t_3 * dX_46_u) * dX_46_u) >= t_4) {
tmp_2 = t_7;
} else {
tmp_2 = t_9;
}
tmp_1 = tmp_2;
} else if (((t_8 * dX_46_v) * dX_46_v) >= t_4) {
tmp_1 = t_7;
} else {
tmp_1 = t_9;
}
return tmp_1;
}
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_v * floor(h)) t_2 = Float32(dY_46_u * floor(w)) t_3 = floor(w) ^ Float32(2.0) t_4 = Float32(Float32(t_3 * dY_46_u) * dY_46_u) t_5 = Float32(dX_46_v * floor(h)) t_6 = Float32(Float32(t_5 * t_5) + Float32(t_0 * t_0)) t_7 = Float32(Float32(Float32(1.0) / sqrt(((t_6 != t_6) ? 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))) ? t_6 : max(t_6, Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2))))))) * t_0) t_8 = floor(h) ^ Float32(2.0) t_9 = Float32(Float32(Float32(1.0) / sqrt(((t_6 != t_6) ? fma(t_8, Float32(dY_46_v * dY_46_v), (t_2 ^ Float32(2.0))) : ((fma(t_8, Float32(dY_46_v * dY_46_v), (t_2 ^ Float32(2.0))) != fma(t_8, Float32(dY_46_v * dY_46_v), (t_2 ^ Float32(2.0)))) ? t_6 : max(t_6, fma(t_8, Float32(dY_46_v * dY_46_v), (t_2 ^ Float32(2.0)))))))) * t_2) tmp_1 = Float32(0.0) if (dX_46_v <= Float32(122.0)) tmp_2 = Float32(0.0) if (Float32(Float32(t_3 * dX_46_u) * dX_46_u) >= t_4) tmp_2 = t_7; else tmp_2 = t_9; end tmp_1 = tmp_2; elseif (Float32(Float32(t_8 * dX_46_v) * dX_46_v) >= t_4) tmp_1 = t_7; else tmp_1 = t_9; end return tmp_1 end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.u \cdot \left\lfloor w\right\rfloor \\
t_1 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_2 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_3 := {\left(\left\lfloor w\right\rfloor \right)}^{2}\\
t_4 := \left(t\_3 \cdot dY.u\right) \cdot dY.u\\
t_5 := dX.v \cdot \left\lfloor h\right\rfloor \\
t_6 := t\_5 \cdot t\_5 + t\_0 \cdot t\_0\\
t_7 := \frac{1}{\sqrt{\mathsf{max}\left(t\_6, t\_1 \cdot t\_1 + t\_2 \cdot t\_2\right)}} \cdot t\_0\\
t_8 := {\left(\left\lfloor h\right\rfloor \right)}^{2}\\
t_9 := \frac{1}{\sqrt{\mathsf{max}\left(t\_6, \mathsf{fma}\left(t\_8, dY.v \cdot dY.v, {t\_2}^{2}\right)\right)}} \cdot t\_2\\
\mathbf{if}\;dX.v \leq 122:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;\left(t\_3 \cdot dX.u\right) \cdot dX.u \geq t\_4:\\
\;\;\;\;t\_7\\
\mathbf{else}:\\
\;\;\;\;t\_9\\
\end{array}\\
\mathbf{elif}\;\left(t\_8 \cdot dX.v\right) \cdot dX.v \geq t\_4:\\
\;\;\;\;t\_7\\
\mathbf{else}:\\
\;\;\;\;t\_9\\
\end{array}
\end{array}
if dX.v < 122Initial program 74.3%
lift-+.f32N/A
+-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
lift-*.f32N/A
swap-sqrN/A
pow2N/A
lower-fma.f32N/A
lower-pow.f32N/A
lower-*.f3238.9
lift-*.f32N/A
pow2N/A
lower-pow.f3238.4
lift-*.f32N/A
*-commutativeN/A
lower-*.f3238.4
Applied rewrites38.4%
Taylor expanded in dY.v around 0
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3237.4
Applied rewrites37.4%
Taylor expanded in dX.u around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3235.3
Applied rewrites35.3%
if 122 < dX.v Initial program 65.6%
lift-+.f32N/A
+-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
lift-*.f32N/A
swap-sqrN/A
pow2N/A
lower-fma.f32N/A
lower-pow.f32N/A
lower-*.f3251.1
lift-*.f32N/A
pow2N/A
lower-pow.f3250.1
lift-*.f32N/A
*-commutativeN/A
lower-*.f3250.1
Applied rewrites50.1%
Taylor expanded in dY.v around 0
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3249.2
Applied rewrites49.2%
Taylor expanded in dX.u around 0
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3247.9
Applied rewrites47.9%
Final simplification38.1%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dY.v (floor h)))
(t_1 (* dY.u (floor w)))
(t_2 (* dX.v (floor h)))
(t_3 (pow (floor w) 2.0))
(t_4 (* dX.u (floor w)))
(t_5 (+ (* t_2 t_2) (* t_4 t_4))))
(if (>= (* (* t_3 dX.u) dX.u) (* (* t_3 dY.u) dY.u))
(* (/ 1.0 (sqrt (fmax t_5 (+ (* t_0 t_0) (* t_1 t_1))))) t_4)
(*
(/
1.0
(sqrt (fmax t_5 (fma (pow (floor h) 2.0) (* dY.v dY.v) (pow t_1 2.0)))))
t_1))))
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_v * floorf(h);
float t_1 = dY_46_u * floorf(w);
float t_2 = dX_46_v * floorf(h);
float t_3 = powf(floorf(w), 2.0f);
float t_4 = dX_46_u * floorf(w);
float t_5 = (t_2 * t_2) + (t_4 * t_4);
float tmp;
if (((t_3 * dX_46_u) * dX_46_u) >= ((t_3 * dY_46_u) * dY_46_u)) {
tmp = (1.0f / sqrtf(fmaxf(t_5, ((t_0 * t_0) + (t_1 * t_1))))) * t_4;
} else {
tmp = (1.0f / sqrtf(fmaxf(t_5, fmaf(powf(floorf(h), 2.0f), (dY_46_v * dY_46_v), powf(t_1, 2.0f))))) * t_1;
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(dY_46_v * floor(h)) t_1 = Float32(dY_46_u * floor(w)) t_2 = Float32(dX_46_v * floor(h)) t_3 = floor(w) ^ Float32(2.0) t_4 = Float32(dX_46_u * floor(w)) t_5 = Float32(Float32(t_2 * t_2) + Float32(t_4 * t_4)) tmp = Float32(0.0) if (Float32(Float32(t_3 * dX_46_u) * dX_46_u) >= Float32(Float32(t_3 * dY_46_u) * dY_46_u)) tmp = Float32(Float32(Float32(1.0) / sqrt(((t_5 != t_5) ? Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) : ((Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) != Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1))) ? t_5 : max(t_5, Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1))))))) * t_4); else tmp = Float32(Float32(Float32(1.0) / sqrt(((t_5 != t_5) ? fma((floor(h) ^ Float32(2.0)), Float32(dY_46_v * dY_46_v), (t_1 ^ Float32(2.0))) : ((fma((floor(h) ^ Float32(2.0)), Float32(dY_46_v * dY_46_v), (t_1 ^ Float32(2.0))) != fma((floor(h) ^ Float32(2.0)), Float32(dY_46_v * dY_46_v), (t_1 ^ Float32(2.0)))) ? t_5 : max(t_5, fma((floor(h) ^ Float32(2.0)), Float32(dY_46_v * dY_46_v), (t_1 ^ Float32(2.0)))))))) * t_1); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_1 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_2 := dX.v \cdot \left\lfloor h\right\rfloor \\
t_3 := {\left(\left\lfloor w\right\rfloor \right)}^{2}\\
t_4 := dX.u \cdot \left\lfloor w\right\rfloor \\
t_5 := t\_2 \cdot t\_2 + t\_4 \cdot t\_4\\
\mathbf{if}\;\left(t\_3 \cdot dX.u\right) \cdot dX.u \geq \left(t\_3 \cdot dY.u\right) \cdot dY.u:\\
\;\;\;\;\frac{1}{\sqrt{\mathsf{max}\left(t\_5, t\_0 \cdot t\_0 + t\_1 \cdot t\_1\right)}} \cdot t\_4\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\sqrt{\mathsf{max}\left(t\_5, \mathsf{fma}\left({\left(\left\lfloor h\right\rfloor \right)}^{2}, dY.v \cdot dY.v, {t\_1}^{2}\right)\right)}} \cdot t\_1\\
\end{array}
\end{array}
Initial program 72.4%
lift-+.f32N/A
+-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
lift-*.f32N/A
swap-sqrN/A
pow2N/A
lower-fma.f32N/A
lower-pow.f32N/A
lower-*.f3241.7
lift-*.f32N/A
pow2N/A
lower-pow.f3241.0
lift-*.f32N/A
*-commutativeN/A
lower-*.f3241.0
Applied rewrites41.0%
Taylor expanded in dY.v around 0
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3240.1
Applied rewrites40.1%
Taylor expanded in dX.u around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3234.9
Applied rewrites34.9%
Final simplification34.9%
herbie shell --seed 2024270
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:name "Anisotropic x16 LOD (line direction, u)"
: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 (>= (+ (* (* (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 (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 w) dX.u)) (* (/ 1.0 (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 w) dY.u))))