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62 lines
2 KiB
C
62 lines
2 KiB
C
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/* -----------------------------------------------------------------------------
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Copyright (c) 2006 Simon Brown si@sjbrown.co.uk
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Copyright (c) 2007 Ignacio Castano icastano@nvidia.com
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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-------------------------------------------------------------------------- */
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#ifndef SQUISH_CLUSTERFIT_H
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#define SQUISH_CLUSTERFIT_H
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#include "squish.h"
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#include "maths.h"
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#include "simd.h"
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#include "colourfit.h"
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namespace squish {
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class ClusterFit : public ColourFit
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{
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public:
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ClusterFit( ColourSet const* colours, int flags, float* metric );
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private:
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bool ConstructOrdering( Vec3 const& axis, int iteration );
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virtual void Compress3( void* block );
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virtual void Compress4( void* block );
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enum { kMaxIterations = 8 };
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int m_iterationCount;
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Vec3 m_principle;
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u8 m_order[16*kMaxIterations];
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Vec4 m_points_weights[16];
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Vec4 m_xsum_wsum;
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Vec4 m_metric;
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Vec4 m_besterror;
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};
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} // namespace squish
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#endif // ndef SQUISH_CLUSTERFIT_H
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