1 files changed, 183 insertions, 0 deletions
diff --git a/thirdparty/squish/simd_float.h b/thirdparty/squish/simd_float.h
new file mode 100644
index 0000000000..e6351b80eb
--- /dev/null
+++ b/thirdparty/squish/simd_float.h
@@ -0,0 +1,183 @@
+/* -----------------------------------------------------------------------------
+
+	Copyright (c) 2006 Simon Brown                          si@sjbrown.co.uk
+
+	Permission is hereby granted, free of charge, to any person obtaining
+	a copy of this software and associated documentation files (the 
+	"Software"), to	deal in the Software without restriction, including
+	without limitation the rights to use, copy, modify, merge, publish,
+	distribute, sublicense, and/or sell copies of the Software, and to 
+	permit persons to whom the Software is furnished to do so, subject to 
+	the following conditions:
+
+	The above copyright notice and this permission notice shall be included
+	in all copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
+	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+	IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 
+	CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
+	TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
+	SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+	
+   -------------------------------------------------------------------------- */
+   
+#ifndef SQUISH_SIMD_FLOAT_H
+#define SQUISH_SIMD_FLOAT_H
+
+#include <algorithm>
+
+namespace squish {
+
+#define VEC4_CONST( X ) Vec4( X )
+
+class Vec4
+{
+public:
+	typedef Vec4 const& Arg;
+
+	Vec4() {}
+		
+	explicit Vec4( float s )
+	  : m_x( s ),
+		m_y( s ),
+		m_z( s ),
+		m_w( s )
+	{
+	}
+	
+	Vec4( float x, float y, float z, float w )
+	  : m_x( x ),
+		m_y( y ),
+		m_z( z ),
+		m_w( w )
+	{
+	}
+	
+	Vec3 GetVec3() const
+	{
+		return Vec3( m_x, m_y, m_z );
+	}
+	
+	Vec4 SplatX() const { return Vec4( m_x ); }
+	Vec4 SplatY() const { return Vec4( m_y ); }
+	Vec4 SplatZ() const { return Vec4( m_z ); }
+	Vec4 SplatW() const { return Vec4( m_w ); }
+
+	Vec4& operator+=( Arg v )
+	{
+		m_x += v.m_x;
+		m_y += v.m_y;
+		m_z += v.m_z;
+		m_w += v.m_w;
+		return *this;
+	}
+	
+	Vec4& operator-=( Arg v )
+	{
+		m_x -= v.m_x;
+		m_y -= v.m_y;
+		m_z -= v.m_z;
+		m_w -= v.m_w;
+		return *this;
+	}
+	
+	Vec4& operator*=( Arg v )
+	{
+		m_x *= v.m_x;
+		m_y *= v.m_y;
+		m_z *= v.m_z;
+		m_w *= v.m_w;
+		return *this;
+	}
+	
+	friend Vec4 operator+( Vec4::Arg left, Vec4::Arg right  )
+	{
+		Vec4 copy( left );
+		return copy += right;
+	}
+	
+	friend Vec4 operator-( Vec4::Arg left, Vec4::Arg right  )
+	{
+		Vec4 copy( left );
+		return copy -= right;
+	}
+	
+	friend Vec4 operator*( Vec4::Arg left, Vec4::Arg right  )
+	{
+		Vec4 copy( left );
+		return copy *= right;
+	}
+	
+	//! Returns a*b + c
+	friend Vec4 MultiplyAdd( Vec4::Arg a, Vec4::Arg b, Vec4::Arg c )
+	{
+		return a*b + c;
+	}
+	
+	//! Returns -( a*b - c )
+	friend Vec4 NegativeMultiplySubtract( Vec4::Arg a, Vec4::Arg b, Vec4::Arg c )
+	{
+		return c - a*b;
+	}
+	
+	friend Vec4 Reciprocal( Vec4::Arg v )
+	{
+		return Vec4( 
+			1.0f/v.m_x, 
+			1.0f/v.m_y, 
+			1.0f/v.m_z, 
+			1.0f/v.m_w 
+		);
+	}
+	
+	friend Vec4 Min( Vec4::Arg left, Vec4::Arg right )
+	{
+		return Vec4( 
+			std::min( left.m_x, right.m_x ), 
+			std::min( left.m_y, right.m_y ), 
+			std::min( left.m_z, right.m_z ), 
+			std::min( left.m_w, right.m_w ) 
+		);
+	}
+	
+	friend Vec4 Max( Vec4::Arg left, Vec4::Arg right )
+	{
+		return Vec4( 
+			std::max( left.m_x, right.m_x ), 
+			std::max( left.m_y, right.m_y ), 
+			std::max( left.m_z, right.m_z ), 
+			std::max( left.m_w, right.m_w ) 
+		);
+	}
+	
+	friend Vec4 Truncate( Vec4::Arg v )
+	{
+		return Vec4(
+			v.m_x > 0.0f ? std::floor( v.m_x ) : std::ceil( v.m_x ), 
+			v.m_y > 0.0f ? std::floor( v.m_y ) : std::ceil( v.m_y ), 
+			v.m_z > 0.0f ? std::floor( v.m_z ) : std::ceil( v.m_z ),
+			v.m_w > 0.0f ? std::floor( v.m_w ) : std::ceil( v.m_w )
+		);
+	}
+	
+	friend bool CompareAnyLessThan( Vec4::Arg left, Vec4::Arg right ) 
+	{
+		return left.m_x < right.m_x
+			|| left.m_y < right.m_y
+			|| left.m_z < right.m_z
+			|| left.m_w < right.m_w;
+	}
+	
+private:
+	float m_x;
+	float m_y;
+	float m_z;
+	float m_w;
+};
+
+} // namespace squish
+
+#endif // ndef SQUISH_SIMD_FLOAT_H
+