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Log transform: further speedup

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This commit is contained in:
Ingo Weyrich
2020-01-01 15:18:47 +01:00
parent 6302084804
commit 52f7c2c531
1 changed files with 5 additions and 3 deletions
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8
rtengine/iptransform.cc
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@@ -155,9 +155,11 @@ inline void interpolateTransformCubicLog(rtengine::Imagefloat* src, int xs, int
const float t1Hor = A * (Dx - Dx * Dx);
const float t2Hor = (3.f - 2.f * Dx) * Dx * Dx;
const vfloat weight = _mm_set_ps(t1Hor * Dx, t1Hor * Dx - t1Hor + t2Hor, 1.f - (t1Hor * Dx) - t2Hor, t1Hor - (t1Hor * Dx));
r = mul * xexpf(vhadd(weight * rv));
g = mul * xexpf(vhadd(weight * gv));
b = mul * xexpf(vhadd(weight * bv));
const vfloat tempv = _mm_setr_ps(vhadd(weight * rv), vhadd(weight * gv), vhadd(weight * bv), 0.f);
const vfloat resultv = xexpf(tempv);
r = mul * resultv[0];
g = mul * resultv[1];
b = mul * resultv[2];
}
#else
inline void interpolateTransformCubic(rtengine::Imagefloat* src, int xs, int ys, float Dx, float Dy, float &r, float &g, float &b, float mul)