2011-12-27 21:18:07 +00:00
commit 9f98ea7e22
192 changed files with 77747 additions and 0 deletions
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+// File: crn_dxt_endpoint_refiner.h
+// See Copyright Notice and license at the end of inc/crnlib.h
+#pragma once
+#include "crn_dxt.h"
+
+namespace crnlib
+{
+   // TODO: Experimental/Not fully implemented
+   class dxt_endpoint_refiner
+   {
+   public:
+      dxt_endpoint_refiner();
+
+      struct params
+      {
+         params() :
+            m_block_index(0),
+            m_pPixels(NULL),
+            m_num_pixels(0),
+            m_pSelectors(NULL),
+            m_alpha_comp_index(0),
+            m_error_to_beat(UINT64_MAX),
+            m_dxt1_selectors(true),
+            m_perceptual(true),
+            m_highest_quality(true)
+         {
+         }
+
+         uint                 m_block_index;
+
+         const color_quad_u8* m_pPixels;
+         uint                 m_num_pixels;
+
+         const uint8*         m_pSelectors;
+
+         uint                 m_alpha_comp_index;
+
+         uint64               m_error_to_beat;
+
+         bool                 m_dxt1_selectors;
+         bool                 m_perceptual;
+         bool                 m_highest_quality;
+      };
+
+      struct results
+      {
+         uint16   m_low_color;
+         uint16   m_high_color;
+         uint64   m_error;
+      };
+
+      bool refine(const params& p, results& r);
+
+   private:
+      const params* m_pParams;
+      results* m_pResults;
+
+      void optimize_dxt1(vec3F low_color, vec3F high_color);
+      void optimize_dxt5(vec3F low_color, vec3F high_color);
+   };
+
+} // namespace crnlib