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More refactoring and a TODO on custom terrain perf

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This commit is contained in:
Paul Chote
2010-07-22 01:13:03 +12:00
parent 2d2362a1a6
commit db9cfb9ddd
2 changed files with 28 additions and 17 deletions
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20
OpenRA.Game/Graphics/Util.cs
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@@ -112,10 +112,30 @@ namespace OpenRA.Graphics
LerpChannel(t, a.G, b.G),
LerpChannel(t, a.B, b.B));
}
public static int LerpARGBColor(float t, int c1, int c2)
{
int a = LerpChannel(t, (c1 >> 24) & 255, (c2 >> 24) & 255);
int r = LerpChannel(t, (c1 >> 16) & 255, (c2 >> 16) & 255);
int g = LerpChannel(t, (c1 >> 8) & 255, (c2 >> 8) & 255);
int b = LerpChannel(t, c1 & 255, c2 & 255);
return (a << 24) | (r << 16) | (g << 8) | b;
}
public static int LerpChannel(float t, int a, int b)
{
return (int)((1 - t) * a + t * b);
}
public static int NextPowerOf2(int v)
{
--v;
v |= v >> 1;
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
++v;
return v;
}
}
}