From 573a2b9177d4ca81105dad1b368454a9dbd4b992 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Branimir=20Karad=C5=BEi=C4=87?= <branimirkaradzic@gmail.com>
Date: Tue, 17 Apr 2018 07:32:27 -0700
Subject: [PATCH] Cleanup.

---
 include/bx/inline/math.inl | 16 ++++++++++++++++
 include/bx/math.h          |  6 ++++++
 2 files changed, 22 insertions(+)

diff --git a/include/bx/inline/math.inl b/include/bx/inline/math.inl
index 26c4cd2..cb8cb26 100644
--- a/include/bx/inline/math.inl
+++ b/include/bx/inline/math.inl
@@ -942,4 +942,20 @@ namespace bx
 		_result[3] = -vec3Dot(normal, _va);
 	}
 
+	inline BX_CONST_FUNC float toLinear(float _a)
+	{
+		const float lo     = _a / 12.92f;
+		const float hi     = pow( (_a + 0.055f) / 1.055f, 2.4f);
+		const float result = lerp(hi, lo, _a <= 0.04045f);
+		return result;
+	}
+
+	inline BX_CONST_FUNC float toGamma(float _a)
+	{
+		const float lo     = _a * 12.92f;
+		const float hi     = pow(abs(_a), 1.0f/2.4f) * 1.055f - 0.055f;
+		const float result = lerp(hi, lo, _a <= 0.0031308f);
+		return result;
+	}
+
 } // namespace bx
diff --git a/include/bx/math.h b/include/bx/math.h
index 07e8a79..470ed8d 100644
--- a/include/bx/math.h
+++ b/include/bx/math.h
@@ -567,6 +567,12 @@ namespace bx
 	///
 	void hsvToRgb(float _rgb[3], const float _hsv[3]);
 
+	///
+	float toLinear(float _a);
+
+	///
+	float toGamma(float _a);
+
 } // namespace bx
 
 #include "inline/math.inl"