/* -----------------------------------------------------------------------------

	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 NV_SQUISH_COLOURSET_H
#define NV_SQUISH_COLOURSET_H

#include "squish.h"
#include "maths.h"
#include "simd.h"

namespace nvsquish {

/*! @brief Represents a set of block colours
*/
class ColourSet
{
public:
	ColourSet( u8 const* rgba, int flags, bool createMinimalSet = true );

	int GetCount() const { return m_count; }
	Vec3 const* GetPoints() const { return m_points; }
	float const* GetWeights() const { return m_weights; }
	bool IsTransparent() const { return m_transparent; }

	void RemapIndices( u8 const* source, u8* target ) const;

private:
	int m_count;
	Vec3 m_points[16];
	float m_weights[16];
	int m_remap[16];
	bool m_transparent;

#if SQUISH_USE_SIMD
public:
	Vec4 const* GetPointsSimd() const { return m_points_simd; }
	Vec4 const* GetWeightsSimd() const { return m_weights_simd; }
	
private:
	Vec4 m_points_simd[16];
	Vec4 m_weights_simd[16];
#endif
};

} // namespace sqish

#endif // ndef SQUISH_COLOURSET_H
