Merge branch 'master' into DRTVWR-507-maint

1 files changed, 115 insertions, 0 deletions

diff --git a/indra/llmath/v3colorutil.h b/indra/llmath/v3colorutil.h
new file mode 100644
index 0000000000..6d8cd9329b
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+++ b/indra/llmath/v3colorutil.h
@@ -0,0 +1,115 @@
+/** 
+ * @file v3color.h
+ * @brief LLColor3 class header file.
+ *
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_V3COLORUTIL_H
+#define LL_V3COLORUTIL_H
+
+#include "v3color.h"
+
+inline LLColor3 componentDiv(LLColor3 const &left, LLColor3 const & right)
+{
+    return LLColor3(left.mV[0] / right.mV[0],
+        left.mV[1] / right.mV[1],
+        left.mV[2] / right.mV[2]);
+}
+
+
+inline LLColor3 componentMult(LLColor3 const &left, LLColor3 const & right)
+{
+    return LLColor3(left.mV[0] * right.mV[0],
+        left.mV[1] * right.mV[1],
+        left.mV[2] * right.mV[2]);
+}
+
+
+inline LLColor3 componentExp(LLColor3 const &v)
+{
+    return LLColor3(exp(v.mV[0]),
+        exp(v.mV[1]),
+        exp(v.mV[2]));
+}
+
+inline LLColor3 componentPow(LLColor3 const &v, F32 exponent)
+{
+    return LLColor3(pow(v.mV[0], exponent),
+        pow(v.mV[1], exponent),
+        pow(v.mV[2], exponent));
+}
+
+inline LLColor3 componentSaturate(LLColor3 const &v)
+{
+    return LLColor3(std::max(std::min(v.mV[0], 1.f), 0.f),
+        std::max(std::min(v.mV[1], 1.f), 0.f),
+        std::max(std::min(v.mV[2], 1.f), 0.f));
+}
+
+
+inline LLColor3 componentSqrt(LLColor3 const &v)
+{
+    return LLColor3(sqrt(v.mV[0]),
+        sqrt(v.mV[1]),
+        sqrt(v.mV[2]));
+}
+
+inline void componentMultBy(LLColor3 & left, LLColor3 const & right)
+{
+    left.mV[0] *= right.mV[0];
+    left.mV[1] *= right.mV[1];
+    left.mV[2] *= right.mV[2];
+}
+
+inline LLColor3 colorMix(LLColor3 const & left, LLColor3 const & right, F32 amount)
+{
+    return (left + ((right - left) * amount));
+}
+
+inline LLColor3 smear(F32 val)
+{
+    return LLColor3(val, val, val);
+}
+
+inline F32 color_intens(const LLColor3 &col)
+{
+    return col.mV[0] + col.mV[1] + col.mV[2];
+}
+
+inline F32 color_max(const LLColor3 &col)
+{
+    return llmax(col.mV[0], col.mV[1], col.mV[2]);
+}
+
+inline F32 color_max(const LLColor4 &col)
+{
+    return llmax(col.mV[0], col.mV[1], col.mV[2]);
+}
+
+
+inline F32 color_min(const LLColor3 &col)
+{
+    return llmin(col.mV[0], col.mV[1], col.mV[2]);
+}
+
+#endif