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V2 llmath merge

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This commit is contained in:
Shyotl
2011-02-22 21:44:04 -06:00
parent b31db27545
commit 7deee9336c
34 changed files with 371 additions and 192 deletions
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40
indra/llmath/v3color.cpp
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@@ -56,9 +56,7 @@ LLColor3::LLColor3(const LLVector4 &a)
LLColor3::LLColor3(const LLSD &sd)
{
mV[0] = (F32) sd[0].asReal();
mV[1] = (F32) sd[1].asReal();
mV[2] = (F32) sd[2].asReal();
setValue(sd);
}
const LLColor3& LLColor3::operator=(const LLColor4 &a)
@@ -75,6 +73,42 @@ std::ostream& operator<<(std::ostream& s, const LLColor3 &a)
return s;
}
static F32 hueToRgb ( F32 val1In, F32 val2In, F32 valHUeIn )
{
if ( valHUeIn < 0.0f ) valHUeIn += 1.0f;
if ( valHUeIn > 1.0f ) valHUeIn -= 1.0f;
if ( ( 6.0f * valHUeIn ) < 1.0f ) return ( val1In + ( val2In - val1In ) * 6.0f * valHUeIn );
if ( ( 2.0f * valHUeIn ) < 1.0f ) return ( val2In );
if ( ( 3.0f * valHUeIn ) < 2.0f ) return ( val1In + ( val2In - val1In ) * ( ( 2.0f / 3.0f ) - valHUeIn ) * 6.0f );
return ( val1In );
}
void LLColor3::setHSL ( F32 hValIn, F32 sValIn, F32 lValIn)
{
if ( sValIn < 0.00001f )
{
mV[VRED] = lValIn;
mV[VGREEN] = lValIn;
mV[VBLUE] = lValIn;
}
else
{
F32 interVal1;
F32 interVal2;
if ( lValIn < 0.5f )
interVal2 = lValIn * ( 1.0f + sValIn );
else
interVal2 = ( lValIn + sValIn ) - ( sValIn * lValIn );
interVal1 = 2.0f * lValIn - interVal2;
mV[VRED] = hueToRgb ( interVal1, interVal2, hValIn + ( 1.f / 3.f ) );
mV[VGREEN] = hueToRgb ( interVal1, interVal2, hValIn );
mV[VBLUE] = hueToRgb ( interVal1, interVal2, hValIn - ( 1.f / 3.f ) );
}
}
void LLColor3::calcHSL(F32* hue, F32* saturation, F32* luminance) const
{
F32 var_R = mV[VRED];