include/plugin_interface/SC_Rate.h

   1 /*
   2         SuperCollider real time audio synthesis system
   3     Copyright (c) 2002 James McCartney. All rights reserved.
   4         http://www.audiosynth.com
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
  19 */
  20
  21
  22 #ifndef _Rate_
  23 #define _Rate_
  24
  25 enum { calc_ScalarRate, calc_BufRate, calc_FullRate, calc_DemandRate };
  26
  27 struct Rate
  28 {
  29         double mSampleRate; // samples per second
  30         double mSampleDur;  // seconds per sample
  31         double mBufDuration; // seconds per buffer
  32         double mBufRate;        // buffers per second
  33         double mSlopeFactor;  // 1. / NumSamples
  34         double mRadiansPerSample; // 2pi / SampleRate
  35         int mBufLength; // length of the buffer
  36         // second order filter loops are often unrolled by 3
  37         int mFilterLoops, mFilterRemain;
  38         double mFilterSlope;
  39 };
  40 typedef struct Rate Rate;
  41
  42 #endif