61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
/* -----------------------------------------------------------------------------
|
|
|
|
Copyright (c) 2006 Simon Brown si@sjbrown.co.uk
|
|
Copyright (c) 2007 Ignacio Castano icastano@nvidia.com
|
|
|
|
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_CLUSTERFIT_H
|
|
#define SQUISH_CLUSTERFIT_H
|
|
|
|
#include "squish.h"
|
|
#include "maths.h"
|
|
#include "simd.h"
|
|
#include "colourfit.h"
|
|
|
|
namespace squish {
|
|
|
|
class ClusterFit : public ColourFit
|
|
{
|
|
public:
|
|
ClusterFit( ColourSet const* colours, int flags, float* metric );
|
|
|
|
private:
|
|
bool ConstructOrdering( Vec3 const& axis, int iteration );
|
|
|
|
virtual void Compress3( void* block );
|
|
virtual void Compress4( void* block );
|
|
|
|
enum { kMaxIterations = 8 };
|
|
|
|
int m_iterationCount;
|
|
Vec3 m_principle;
|
|
u8 m_order[16*kMaxIterations];
|
|
Vec4 m_points_weights[16];
|
|
Vec4 m_xsum_wsum;
|
|
Vec4 m_metric;
|
|
Vec4 m_besterror;
|
|
};
|
|
|
|
} // namespace squish
|
|
|
|
#endif // ndef SQUISH_CLUSTERFIT_H
|