/[svn]/linuxsampler/trunk/src/common/RTMath.h
ViewVC logotype

Diff of /linuxsampler/trunk/src/common/RTMath.h

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 361 by schoenebeck, Wed Feb 9 01:22:18 2005 UTC revision 563 by schoenebeck, Sun May 22 20:43:32 2005 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6     *   Copyright (C) 2005 Christian Schoenebeck                              *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 35  enum implementation_t { Line 36  enum implementation_t {
36      ASM_X86_MMX_SSE      ASM_X86_MMX_SSE
37  };  };
38    
39    /** @brief Real Time Math Base Class
40     *
41     * Math functions for real time operation. This base class contains all
42     * non-template methods.
43     */
44  class RTMathBase {  class RTMathBase {
45      public:      public:
46          /**          /**
# Line 55  class RTMathBase { Line 61  class RTMathBase {
61           * (assuming equal tempered scale of course, divided into 12           * (assuming equal tempered scale of course, divided into 12
62           * semitones per octave and 100 cents per semitone).           * semitones per octave and 100 cents per semitone).
63           *           *
64           * Note: MAX_PITCH (defined in global.h) has to be defined to an           * Note: CONFIG_MAX_PITCH (defined in config.h) has to be defined to an
65           * appropriate value, otherwise the behavior of this function is           * appropriate value, otherwise the behavior of this function is
66           * undefined, but most probably if MAX_PITCH is too small, the           * undefined, but most probably if CONFIG_MAX_PITCH is too small, the
67           * application will crash due to segmentation fault here.           * application will crash due to segmentation fault here.
68           *           *
69           * @param cents - pitch value in cents (+1200 cents means +1 octave)           * @param cents - pitch value in cents (+1200 cents means +1 octave)
# Line 70  class RTMathBase { Line 76  class RTMathBase {
76          }          }
77    
78      private:      private:
79          static float  CentsToFreqTable[MAX_PITCH * 1200 * 2 + 1];          static float  CentsToFreqTable[CONFIG_MAX_PITCH * 1200 * 2 + 1];
80          static float* pCentsToFreqTable;          static float* pCentsToFreqTable;
81    
82          static float* InitCentsToFreqTable();          static float* InitCentsToFreqTable();
83  };  };
84    
85  /** Real Time Math  /** @brief Real Time Math
86   *   *
87   * Math functions for real time operation.   * This is a template which provides customized methods for the desired low
88     * level implementation. The ASM_X86_MMX_SSE implementation of each method
89     * for example doesn't use 387 FPU instruction. This is needed for MMX
90     * algorithms which do not allow mixed MMX and 387 instructions.
91   */   */
92  template<implementation_t IMPL = CPP>  template<implementation_t IMPL = CPP>
93  class __RTMath : public RTMathBase {  class __RTMath : public RTMathBase {
Legend:
Removed from v.361  
changed lines
  Added in v.563
  ViewVC Help
Powered by ViewVC