/** 
 * @file v4coloru.cpp
 * @brief LLColor4U class implementation.
 *
 * $LicenseInfo:firstyear=2001&license=viewergpl$
 * 
 * Copyright (c) 2001-2009, Linden Research, Inc.
 * 
 * Second Life Viewer Source Code
 * The source code in this file ("Source Code") is provided by Linden Lab
 * to you under the terms of the GNU General Public License, version 2.0
 * ("GPL"), unless you have obtained a separate licensing agreement
 * ("Other License"), formally executed by you and Linden Lab.  Terms of
 * the GPL can be found in doc/GPL-license.txt in this distribution, or
 * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
 * 
 * There are special exceptions to the terms and conditions of the GPL as
 * it is applied to this Source Code. View the full text of the exception
 * in the file doc/FLOSS-exception.txt in this software distribution, or
 * online at
 * http://secondlifegrid.net/programs/open_source/licensing/flossexception
 * 
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 * and agree to abide by those obligations.
 * 
 * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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 */

#include "linden_common.h"

//#include "v3coloru.h"
#include "v4coloru.h"
#include "v4color.h"
//#include "vmath.h"
#include "llmath.h"

// LLColor4U
LLColor4U LLColor4U::white(255, 255, 255, 255);
LLColor4U LLColor4U::black(  0,   0,   0, 255);
LLColor4U LLColor4U::red  (255,   0,   0, 255);
LLColor4U LLColor4U::green(  0, 255,   0, 255);
LLColor4U LLColor4U::blue (  0,   0, 255, 255);

// conversion
/* inlined to fix gcc compile link error
LLColor4U::operator LLColor4()
{
	return(LLColor4((F32)mV[VRED]/255.f,(F32)mV[VGREEN]/255.f,(F32)mV[VBLUE]/255.f,(F32)mV[VALPHA]/255.f));
}
*/

// Constructors


/*
LLColor4U::LLColor4U(const LLColor3 &vec)
{
	mV[VX] = vec.mV[VX];
	mV[VY] = vec.mV[VY];
	mV[VZ] = vec.mV[VZ];
	mV[VW] = 255;
}
*/


// Clear and Assignment Functions



// LLColor4U Operators

/*
LLColor4U LLColor4U::operator=(const LLColor3 &a)
{
	mV[VX] = a.mV[VX];
	mV[VY] = a.mV[VY];
	mV[VZ] = a.mV[VZ];

// converting from an rgb sets a=1 (opaque)
	mV[VW] = 255;
	return (*this);
}
*/


std::ostream& operator<<(std::ostream& s, const LLColor4U &a) 
{
	s << "{ " << (S32)a.mV[VX] << ", " << (S32)a.mV[VY] << ", " << (S32)a.mV[VZ] << ", " << (S32)a.mV[VW] << " }";
	return s;
}

// static
BOOL LLColor4U::parseColor4U(const std::string& buf, LLColor4U* value)
{
	if( buf.empty() || value == NULL)
	{
		return FALSE;
	}

	U32 v[4];
	S32 count = sscanf( buf.c_str(), "%u, %u, %u, %u", v + 0, v + 1, v + 2, v + 3 );
	if (1 == count )
	{
		// try this format
		count = sscanf( buf.c_str(), "%u %u %u %u", v + 0, v + 1, v + 2, v + 3 );
	}
	if( 4 != count )
	{
		return FALSE;
	}

	for( S32 i = 0; i < 4; i++ )
	{
		if( v[i] > U8_MAX )
		{
			return FALSE;
		}
	}

	value->set( U8(v[0]), U8(v[1]), U8(v[2]), U8(v[3]) );
	return TRUE;
}