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capture sharpening: Fix crash when using gamma < 1.0, #5412

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This commit is contained in:
Ingo Weyrich 2019-09-03 17:08:37 +02:00
parent 673b0d31fa
commit fb51c4ca92
1 changed files with 2 additions and 2 deletions
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4
rtengine/capturesharpening.cc
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@ -192,7 +192,7 @@ BENCHFUN
#ifdef __SSE2__ #ifdef __SSE2__
const vfloat gammav = F2V(gamma); const vfloat gammav = F2V(gamma);
for (; j < W - 3; j += 4) { for (; j < W - 3; j += 4) {
const vfloat factor = pow_F(LVFU(YNew[i][j]) / vmaxf(LVFU(YOld[i][j]), F2V(0.00001f)), gammav); const vfloat factor = pow_F(vmaxf(LVFU(YNew[i][j]), ZEROV) / vmaxf(LVFU(YOld[i][j]), F2V(0.00001f)), gammav);
STVFU(red[i][j], LVFU(redVals[i][j]) * factor); STVFU(red[i][j], LVFU(redVals[i][j]) * factor);
STVFU(green[i][j], LVFU(greenVals[i][j]) * factor); STVFU(green[i][j], LVFU(greenVals[i][j]) * factor);
STVFU(blue[i][j], LVFU(blueVals[i][j]) * factor); STVFU(blue[i][j], LVFU(blueVals[i][j]) * factor);
@ -200,7 +200,7 @@ BENCHFUN
#endif #endif
for (; j < W; ++j) { for (; j < W; ++j) {
const float factor = pow_F(YNew[i][j] / std::max(YOld[i][j], 0.00001f), gamma); const float factor = pow_F(std::max(YNew[i][j], 0.f) / std::max(YOld[i][j], 0.00001f), gamma);
red[i][j] = redVals[i][j] * factor; red[i][j] = redVals[i][j] * factor;
green[i][j] = greenVals[i][j] * factor; green[i][j] = greenVals[i][j] * factor;
blue[i][j] = blueVals[i][j] * factor; blue[i][j] = blueVals[i][j] * factor;