source/pdffunctiontypes.h

   1 /* This file is part of Shapes.
   2  *
   3  * Shapes is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, either version 3 of the License, or
   6  * any later version.
   7  *
   8  * Shapes is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with Shapes.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  * Copyright 2008 Henrik Tidefelt
  17  */
  18
  19 #pragma once
  20
  21 #include "functiontypes.h"
  22 #include "simplepdfo.h"
  23 #include <memory>
  24
  25 namespace Shapes
  26 {
  27         namespace Lang
  28         {
  29
  30                 class PDF_Function : public Lang::Function
  31                 {
  32                 public:
  33                         typedef enum { INTERPOLATION = 0, EXPONENTIAL, STITCHING, CALCULATOR } SubType;
  34                 private:
  35                         SubType subType_;
  36                 protected:
  37                         const size_t outputDimension_;
  38                         const size_t inputDimension_;
  39                         const bool rangeIsActive_;
  40                         std::vector< std::pair< double, double > > domain_;
  41                         std::vector< std::pair< double, double > > range_;
  42                         RefCountPtr< SimplePDF::PDF_Indirect_out > storage;
  43
  44                         const char * title_;
  45
  46                         void addCommonFields( SimplePDF::PDF_Dictionary * dst ) const;
  47                         virtual std::auto_ptr< const std::vector< double > > callImpl( const std::vector< double > & arg ) const;
  48                 public:
  49                         PDF_Function( SubType subType, size_t outputDimension, size_t inputDimension, bool rangeIsActive );
  50                         virtual ~PDF_Function( );
  51                         virtual void gcMark( Kernel::GCMarkedSet & marked ){ };
  52                         virtual void call( Kernel::EvalState * evalState, Kernel::Arguments & args, const Ast::SourceLocation & callLoc ) const;
  53                         virtual bool isTransforming( ) const { return false; }
  54                         bool matchesDimensions( size_t outputDimension, size_t inputDimension ) const;
  55                         RefCountPtr< SimplePDF::PDF_Indirect_out > getFunction( ) const;
  56                 };
  57
  58                 class PDF_InterpolationFunction : public Lang::PDF_Function
  59                 {
  60                 public:
  61                         PDF_InterpolationFunction( const std::vector< std::pair< double, double > > & range,
  62                                                                                                                                  const std::vector< std::pair< double, double > > & domain,
  63                                                                                                                                  const std::vector< double > & size,
  64                                                                                                                                  unsigned char bitsPerSample,
  65                                                                                                                                  bool cubic,
  66                                                                                                                                  const std::vector< std::pair< double, double > > & encode,
  67                                                                                                                                  const std::vector< std::pair< double, double > > & decode,
  68                                                                                                                                  const std::vector< double > table );
  69                         ~PDF_InterpolationFunction( );
  70                 };
  71
  72         }
  73 }