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New SSE interpolating routine for LUT<float>.

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This commit is contained in:
gatoatigrado
2017-12-25 14:55:14 -05:00
parent 3ccfb9b203
commit ebc92e1c35
2 changed files with 38 additions and 63 deletions
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7
rtengine/curves.h
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@@ -881,6 +881,7 @@ inline void StandardToneCurve::Apply (float& r, float& g, float& b) const
g = lutToneCurve[g];
b = lutToneCurve[b];
}
inline void StandardToneCurve::BatchApply(
const size_t start, const size_t end,
float *r, float *g, float *b) const {
@@ -911,9 +912,9 @@ inline void StandardToneCurve::BatchApply(
#if defined( __SSE2__ ) && defined( __x86_64__ )
for (; i + 3 < end; i += 4) {
__m128i r_val = _mm_cvtps_epi32(LVF(r[i]));
__m128i g_val = _mm_cvtps_epi32(LVF(g[i]));
__m128i b_val = _mm_cvtps_epi32(LVF(b[i]));
__m128 r_val = LVF(r[i]);
__m128 g_val = LVF(g[i]);
__m128 b_val = LVF(b[i]);
STVF(r[i], lutToneCurve[r_val]);
STVF(g[i], lutToneCurve[g_val]);
STVF(b[i], lutToneCurve[b_val]);