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libobs/graphics: Precompute more accurate matrix

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This is generated with .NET BigInteger fractions, and late divide.
This commit is contained in:
jpark37 2022-10-03 23:19:57 -07:00 committed by Jim
parent 51c452e937
commit 2a76ffaf02
1 changed files with 9 additions and 9 deletions
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18
libobs/graphics/graphics-ffmpeg.c
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@ -678,15 +678,15 @@ static void convert_pq_to_cccs(const BYTE *intermediate,
const float red2020 = pq_to_linear(red);
const float green2020 = pq_to_linear(green);
const float blue2020 = pq_to_linear(blue);
const float red709 = 1.6604910f * red2020 -
0.5876411f * green2020 -
0.0728499f * blue2020;
const float green709 = -0.1245505f * red2020 +
1.1328999f * green2020 -
0.0083494f * blue2020;
const float blue709 = -0.0181508f * red2020 -
0.1005789f * green2020 +
1.1187297f * blue2020;
const float red709 = 1.6604910021084345f * red2020 -
0.58764113878854951f * green2020 -
0.072849863319884883f * blue2020;
const float green709 = -0.12455047452159074f * red2020 +
1.1328998971259603f * green2020 -
0.0083494226043694768f * blue2020;
const float blue709 = -0.018150763354905303f * red2020 -
0.10057889800800739f * green2020 +
1.1187296613629127f * blue2020;
rgba16[0] = half_from_float(red709 * 125.f);
rgba16[1] = half_from_float(green709 * 125.f);
rgba16[2] = half_from_float(blue709 * 125.f);