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clip negative output of demosaicers to zero, #5561

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This commit is contained in:
Ingo Weyrich
2019-12-12 18:45:18 +01:00
parent a2dd906115
commit b2218d05dd
10 changed files with 105 additions and 113 deletions
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18
rtengine/fast_demo.cc
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@@ -452,23 +452,23 @@ void RawImageSource::fast_demosaic()
#ifdef __SSE2__
for (j = left + 2, cc = 2; j < right - 5; j += 4, cc += 4) {
_mm_storeu_ps(&red[i][j], LVFU(redtile[rr * TS + cc]));
_mm_storeu_ps(&green[i][j], LVFU(greentile[rr * TS + cc]));
_mm_storeu_ps(&blue[i][j], LVFU(bluetile[rr * TS + cc]));
_mm_storeu_ps(&red[i][j], vmaxf(LVFU(redtile[rr * TS + cc]), ZEROV));
_mm_storeu_ps(&green[i][j], vmaxf(LVFU(greentile[rr * TS + cc]), ZEROV));
_mm_storeu_ps(&blue[i][j], vmaxf(LVFU(bluetile[rr * TS + cc]), ZEROV));
}
for (; j < right - 2; j++, cc++) {
red[i][j] = redtile[rr * TS + cc];
green[i][j] = greentile[rr * TS + cc];
blue[i][j] = bluetile[rr * TS + cc];
red[i][j] = std::max(0.f, redtile[rr * TS + cc]);
green[i][j] = std::max(0.f, greentile[rr * TS + cc]);
blue[i][j] = std::max(0.f, bluetile[rr * TS + cc]);
}
#else
for (int j = left + 2, cc = 2; j < right - 2; j++, cc++) {
red[i][j] = redtile[rr * TS + cc];
green[i][j] = greentile[rr * TS + cc];
blue[i][j] = bluetile[rr * TS + cc];
red[i][j] = std::max(0.f, redtile[rr * TS + cc]);
green[i][j] = std::max(0.f, greentile[rr * TS + cc]);
blue[i][j] = std::max(0.f, bluetile[rr * TS + cc]);
}
#endif