server/scsynth/SC_Unit.cpp

   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 #include <stdio.h>
  23 #include "SC_Endian.h"
  24 #include "SC_Unit.h"
  25 #include "SC_UnitSpec.h"
  26 #include "SC_UnitDef.h"
  27 #include "SC_World.h"
  28 #include "SC_Wire.h"
  29 #include "Unroll.h"
  30 #include "SC_Prototypes.h"
  31
  32 void Unit_ChooseMulAddFunc(Unit* unit);
  33
  34 Unit* Unit_New(World *inWorld, UnitSpec *inUnitSpec, char*& memory)
  35 {
  36         UnitDef *def = inUnitSpec->mUnitDef;
  37
  38         Unit *unit = (Unit*)memory;
  39         memory += def->mAllocSize;
  40
  41         unit->mWorld = inWorld;
  42         unit->mUnitDef = def;
  43
  44         int numInputs = inUnitSpec->mNumInputs;
  45         int numOutputs = inUnitSpec->mNumOutputs;
  46         unit->mNumInputs = numInputs;
  47         unit->mNumOutputs = numOutputs;
  48         int numPorts = numInputs + numOutputs;
  49
  50         unit->mInput = (Wire**)memory;
  51         memory += numPorts * sizeof(Wire*);
  52
  53         unit->mOutput = unit->mInput + numInputs;
  54
  55         unit->mInBuf = (float**)memory;
  56         memory += numPorts * sizeof(float*);
  57
  58         unit->mOutBuf = unit->mInBuf + numInputs;
  59
  60         unit->mCalcRate = inUnitSpec->mCalcRate;
  61         unit->mSpecialIndex = inUnitSpec->mSpecialIndex;
  62         Rate* rateInfo = unit->mRate = inUnitSpec->mRateInfo;
  63         unit->mBufLength = rateInfo->mBufLength;
  64
  65         unit->mDone = false;
  66
  67         return unit;
  68 }
  69
  70 void Unit_Dtor(Unit *inUnit)
  71 {
  72 }
  73
  74 void Unit_ZeroOutputs(Unit *unit, int inNumSamples)
  75 {
  76         long numOuts = unit->mNumOutputs;
  77         for (int i=0; i<numOuts; ++i) {
  78                 float *out = OUT(i);
  79                 Clear(inNumSamples, out);
  80         }
  81
  82 }
  83
  84 void Unit_EndCalc(Unit *inUnit, int inNumSamples)
  85 {
  86         inUnit->mDone = true;
  87         Unit_ZeroOutputs(inUnit, inNumSamples);
  88 }
  89
  90 void Unit_End(Unit *inUnit)
  91 {
  92         inUnit->mCalcFunc = (UnitCalcFunc)&Unit_EndCalc;
  93 }
  94