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Fix broken alt. code in filterloop() so that it works

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michaelangel007 2014-12-18 09:29:53 -08:00
parent bca6d9fe3b
commit 085037da43
1 changed files with 5 additions and 4 deletions
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9
source/wsvideo.cpp
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@ -334,8 +334,9 @@ static void filterloop (void)
if (fabs((2 * PI) - phi) < 0.001) phi = phi - 2 * PI;
}
#else
y = y + (z - y) / 4.0;
c = z - y;
// NOTE: This has incorrect colors! The chroma is 180 degrees out of phase: violet <-> orange, green <-> blue
y0 = y0 + (z - y0) / 4.0;
c = z - y0;
c = c * 2.0;
i = i + (c * cos(phi) - i) / 8.0;
@ -343,8 +344,8 @@ static void filterloop (void)
phi += (PI / 4);
if (fabs((2 * PI) - phi) < 0.001) phi = phi - 2 * PI;
y = y + (z - y) / 4.0;
c = z - y;
y0 = y0 + (z - y0) / 4.0;
c = z - y0;
c = c * 2.0;
i = i + (c * cos(phi) - i) / 8.0;