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optimize more

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This commit is contained in:
MaxGraey
2021-07-13 22:38:10 +03:00
parent 3b0b7dbdb1
commit ef176d7565
1 changed files with 5 additions and 5 deletions
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10
codecs/visdif/visdif.cpp
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@@ -12,7 +12,7 @@ static double SrgbToLinear[256];
inline void gammaLookupTable() {
SrgbToLinear[0] = 0;
for (int i = 1; i < 256; ++i) {
SrgbToLinear[i] = pow(i / 255.0, GAMMA);
SrgbToLinear[i] = static_cast<float>(255.0 * pow(i / 255.0, GAMMA));
}
}
@@ -32,10 +32,10 @@ void planarize(std::vector<ImageF>& img,
float* const row_b = img[2].Row(y);
float* const row_a = img[3].Row(y);
for (int x = 0; x < width; x++) {
row_r[x] = static_cast<float>(255.0 * SrgbToLinear[rgba[(y * width + x) * 4 + 0]]);
row_g[x] = static_cast<float>(255.0 * SrgbToLinear[rgba[(y * width + x) * 4 + 1]]);
row_b[x] = static_cast<float>(255.0 * SrgbToLinear[rgba[(y * width + x) * 4 + 2]]);
row_a[x] = static_cast<float>(255.0 * SrgbToLinear[rgba[(y * width + x) * 4 + 3]]);
row_r[x] = SrgbToLinear[rgba[(y * width + x) * 4 + 0]];
row_g[x] = SrgbToLinear[rgba[(y * width + x) * 4 + 1]];
row_b[x] = SrgbToLinear[rgba[(y * width + x) * 4 + 2]];
row_a[x] = SrgbToLinear[rgba[(y * width + x) * 4 + 3]];
}
}
}