gfx/povray/colour.h

   1 /****************************************************************************
   2 *                   colour.h
   3 *
   4 *  This module contains all defines, typedefs, and prototypes for COLOUR.C.
   5 *
   6 *  from Persistence of Vision(tm) Ray Tracer
   7 *  Copyright 1996,1999 Persistence of Vision Team
   8 *---------------------------------------------------------------------------
   9 *  NOTICE: This source code file is provided so that users may experiment
  10 *  with enhancements to POV-Ray and to port the software to platforms other
  11 *  than those supported by the POV-Ray Team.  There are strict rules under
  12 *  which you are permitted to use this file.  The rules are in the file
  13 *  named POVLEGAL.DOC which should be distributed with this file.
  14 *  If POVLEGAL.DOC is not available or for more info please contact the POV-Ray
  15 *  Team Coordinator by email to team-coord@povray.org or visit us on the web at
  16 *  http://www.povray.org. The latest version of POV-Ray may be found at this site.
  17 *
  18 * This program is based on the popular DKB raytracer version 2.12.
  19 * DKBTrace was originally written by David K. Buck.
  20 * DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
  21 *
  22 *****************************************************************************/
  23
  24 /* NOTE: FRAME.H contains other colour stuff. */
  25
  26 #ifndef COLOUR_H
  27 #define COLOUR_H
  28
  29
  30
  31 /*****************************************************************************
  32 * Global preprocessor defines
  33 ******************************************************************************/
  34
  35
  36
  37
  38 /*****************************************************************************
  39 * Global typedefs
  40 ******************************************************************************/
  41
  42
  43
  44
  45 /*****************************************************************************
  46 * Global variables
  47 ******************************************************************************/
  48
  49
  50
  51 /*****************************************************************************
  52 * Global functions
  53 ******************************************************************************/
  54
  55 COLOUR *Create_Colour (void);
  56 COLOUR *Copy_Colour (COLOUR Old);
  57 BLEND_MAP_ENTRY *Create_BMap_Entries (int Map_Size);
  58 BLEND_MAP_ENTRY *Copy_BMap_Entries (BLEND_MAP_ENTRY *Old,int Map_Size,int Type);
  59 BLEND_MAP *Create_Blend_Map (void);
  60 BLEND_MAP *Copy_Blend_Map (BLEND_MAP *Old);
  61 DBL Colour_Distance (COLOUR colour1, COLOUR colour2);
  62 void Add_Colour (COLOUR result, COLOUR colour1, COLOUR colour2);
  63 void Scale_Colour (COLOUR result, COLOUR colour, DBL factor);
  64 void Clip_Colour (COLOUR result, COLOUR colour);
  65 void Destroy_Blend_Map (BLEND_MAP *BMap);
  66
  67
  68
  69 #endif