File: SC_Unit.cpp

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/*
    SuperCollider real time audio synthesis system
    Copyright (c) 2002 James McCartney. All rights reserved.
    http://www.audiosynth.com

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
*/


#include <stdio.h>
#include "SC_Endian.h"
#include "SC_Unit.h"
#include "SC_UnitSpec.h"
#include "SC_UnitDef.h"
#include "SC_World.h"
#include "SC_Wire.h"
#include "Unroll.h"
#include "SC_Prototypes.h"

void Unit_ChooseMulAddFunc(Unit* unit);

Unit* Unit_New(World* inWorld, UnitSpec* inUnitSpec, char*& memory) {
    UnitDef* def = inUnitSpec->mUnitDef;

    Unit* unit = (Unit*)memory;
    memory += def->mAllocSize;

    unit->mWorld = inWorld;
    unit->mUnitDef = def;

    uint32 numInputs = inUnitSpec->mNumInputs;
    uint32 numOutputs = inUnitSpec->mNumOutputs;
    unit->mNumInputs = numInputs;
    unit->mNumOutputs = numOutputs;
    uint64 numPorts = numInputs + numOutputs;

    unit->mInput = (Wire**)memory;
    memory += numPorts * sizeof(Wire*);

    unit->mOutput = unit->mInput + numInputs;

    unit->mInBuf = (float**)memory;
    memory += numPorts * sizeof(float*);

    unit->mOutBuf = unit->mInBuf + numInputs;

    unit->mCalcRate = inUnitSpec->mCalcRate;
    unit->mSpecialIndex = inUnitSpec->mSpecialIndex;
    Rate* rateInfo = unit->mRate = inUnitSpec->mRateInfo;
    unit->mBufLength = rateInfo->mBufLength;

    unit->mDone = false;

    return unit;
}

void Unit_Dtor(Unit* inUnit) {}

void Unit_ZeroOutputs(Unit* unit, int inNumSamples) {
    uint32 numOuts = unit->mNumOutputs;
    for (uint32 i = 0; i < numOuts; ++i) {
        float* out = OUT(i);
        Clear(inNumSamples, out);
    }
}

void Unit_EndCalc(Unit* inUnit, int inNumSamples) {
    inUnit->mDone = true;
    Unit_ZeroOutputs(inUnit, inNumSamples);
}

void Unit_End(Unit* inUnit) { inUnit->mCalcFunc = (UnitCalcFunc)&Unit_EndCalc; }