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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
*/
#pragma once
#include "SC_PlugIn.h"
#include "SCComplex.h"
#include <string.h>
struct SCComplexBuf {
float dc, nyq;
SCComplex bin[1];
};
struct SCPolarBuf {
float dc, nyq;
SCPolar bin[1];
};
static inline SCPolarBuf* ToPolarApx(SndBuf* buf) {
if (buf->coord == coord_Complex) {
SCComplexBuf* p = (SCComplexBuf*)buf->data;
int numbins = (buf->samples - 2) >> 1;
for (int i = 0; i < numbins; ++i) {
p->bin[i].ToPolarApxInPlace();
}
buf->coord = coord_Polar;
}
return (SCPolarBuf*)buf->data;
}
static inline SCComplexBuf* ToComplexApx(SndBuf* buf) {
if (buf->coord == coord_Polar) {
SCPolarBuf* p = (SCPolarBuf*)buf->data;
int numbins = (buf->samples - 2) >> 1;
for (int i = 0; i < numbins; ++i) {
p->bin[i].ToComplexApxInPlace();
}
buf->coord = coord_Complex;
}
return (SCComplexBuf*)buf->data;
}
struct PV_Unit : Unit {};
// Ordinary ClearUnitOutputs outputs zero, potentially telling the IFFT (+ PV UGens) to act on buffer zero, so let's
// skip that:
static inline void FFT_ClearUnitOutputs(Unit* unit, int wrongNumSamples) { ZOUT0(0) = -1; }
#define ClearFFTUnitIfMemFailed(condition) \
if (!(condition)) { \
Print("%s: alloc failed, increase server's RT memory (e.g. via ServerOptions)\n", __func__); \
SETCALC(FFT_ClearUnitOutputs); \
unit->mDone = true; \
return; \
}
#define sc_clipbuf(x, hi) ((x) >= (hi) ? 0 : ((x) < 0 ? 0 : (x)))
// for operation on one buffer
#define PV_GET_BUF \
float fbufnum = ZIN0(0); \
if (fbufnum < 0.f) { \
ZOUT0(0) = -1.f; \
return; \
} \
ZOUT0(0) = fbufnum; \
uint32 ibufnum = (uint32)fbufnum; \
World* world = unit->mWorld; \
SndBuf* buf; \
if (ibufnum >= world->mNumSndBufs) { \
int localBufNum = ibufnum - world->mNumSndBufs; \
Graph* parent = unit->mParent; \
if (localBufNum <= parent->localBufNum) { \
buf = parent->mLocalSndBufs + localBufNum; \
} else { \
buf = world->mSndBufs; \
} \
} else { \
buf = world->mSndBufs + ibufnum; \
} \
LOCK_SNDBUF(buf); \
int numbins = (buf->samples - 2) >> 1;
// for operation on two input buffers, result goes in first one.
#define PV_GET_BUF2 \
float fbufnum1 = ZIN0(0); \
float fbufnum2 = ZIN0(1); \
if (fbufnum1 < 0.f || fbufnum2 < 0.f) { \
ZOUT0(0) = -1.f; \
return; \
} \
ZOUT0(0) = fbufnum1; \
uint32 ibufnum1 = (int)fbufnum1; \
uint32 ibufnum2 = (int)fbufnum2; \
World* world = unit->mWorld; \
SndBuf* buf1; \
SndBuf* buf2; \
if (ibufnum1 >= world->mNumSndBufs) { \
int localBufNum = ibufnum1 - world->mNumSndBufs; \
Graph* parent = unit->mParent; \
if (localBufNum <= parent->localBufNum) { \
buf1 = parent->mLocalSndBufs + localBufNum; \
} else { \
buf1 = world->mSndBufs; \
} \
} else { \
buf1 = world->mSndBufs + ibufnum1; \
} \
if (ibufnum2 >= world->mNumSndBufs) { \
int localBufNum = ibufnum2 - world->mNumSndBufs; \
Graph* parent = unit->mParent; \
if (localBufNum <= parent->localBufNum) { \
buf2 = parent->mLocalSndBufs + localBufNum; \
} else { \
buf2 = world->mSndBufs; \
} \
} else { \
buf2 = world->mSndBufs + ibufnum2; \
} \
LOCK_SNDBUF2(buf1, buf2); \
if (buf1->samples != buf2->samples) \
return; \
int numbins = (buf1->samples - 2) >> 1;
#define MAKE_TEMP_BUF \
if (!unit->m_tempbuf) { \
unit->m_tempbuf = (float*)RTAlloc(unit->mWorld, buf->samples * sizeof(float)); \
unit->m_numbins = numbins; \
} else if (numbins != unit->m_numbins) \
return;
extern InterfaceTable* ft;
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