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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_Types.h"
#include "SC_SndBuf.h"
typedef void (*UnitCtorFunc)(struct Unit* inUnit);
typedef void (*UnitDtorFunc)(struct Unit* inUnit);
typedef void (*UnitCalcFunc)(struct Unit* inThing, int inNumSamples);
struct SC_Unit_Extensions {
float* todo;
};
struct Unit {
struct World* mWorld;
struct UnitDef* mUnitDef;
struct Graph* mParent;
uint32 mNumInputs, mNumOutputs; // changed from uint16 for synthdef ver 2
int16 mCalcRate;
int16 mSpecialIndex; // used by unary and binary ops
int16 mParentIndex;
int16 mDone;
struct Wire **mInput, **mOutput;
struct Rate* mRate;
SC_Unit_Extensions*
mExtensions; // future proofing and backwards compatibility; used to be SC_Dimension struct pointer
float **mInBuf, **mOutBuf;
UnitCalcFunc mCalcFunc;
int mBufLength;
};
typedef struct Unit Unit;
enum { kUnitDef_CantAliasInputsToOutputs = 1 };
#ifdef _WIN32
// Win32 headers (included by C std library headers) define IN and OUT macros
// for their own purposes.
# undef IN
# undef OUT
#endif
// These return float* pointers to input and output buffers.
#define IN(index) (unit->mInBuf[index])
#define OUT(index) (unit->mOutBuf[index])
// These return a float value. Used for control rate inputs and outputs.
#define IN0(index) (IN(index)[0])
#define OUT0(index) (OUT(index)[0])
// get the rate of the input.
#define INRATE(index) (unit->mInput[index]->mCalcRate)
// get the blocksize of the input
#define INBUFLENGTH(index) (unit->mInput[index]->mFromUnit->mBufLength)
// set the calculation function
#define SETCALC(func) (unit->mCalcFunc = (UnitCalcFunc)&func)
// calculate a slope for control rate interpolation to audio rate.
#define CALCSLOPE(next, prev) ((next - prev) * sc_typeof_cast(next) unit->mRate->mSlopeFactor)
// get useful values
#define SAMPLERATE (unit->mRate->mSampleRate)
#define SAMPLEDUR (unit->mRate->mSampleDur)
#define BUFLENGTH (unit->mBufLength)
#define BUFRATE (unit->mRate->mBufRate)
#define BUFDUR (unit->mRate->mBufDuration)
#define FULLRATE (unit->mWorld->mFullRate.mSampleRate)
#define FULLBUFLENGTH (unit->mWorld->mFullRate.mBufLength)
#ifdef SUPERNOVA
template <bool shared1, bool shared2> struct buffer_lock2 {
buffer_lock2(const SndBuf* buf1, const SndBuf* buf2): buf1_(buf1), buf2_(buf2) {
if (buf1 == buf2) {
lock1();
return;
}
for (;;) {
lock1();
if (lock2())
return;
unlock1();
}
}
~buffer_lock2(void) {
unlock1();
if (buf1_ != buf2_)
unlock2();
}
private:
void lock1(void) {
if (buf1_->isLocal)
return;
if (!shared1)
buf1_->lock.lock();
else
buf1_->lock.lock_shared();
}
bool lock2(void) {
if (buf2_->isLocal)
return true;
if (!shared2)
return buf2_->lock.try_lock();
else
return buf2_->lock.try_lock_shared();
}
void unlock1(void) {
if (buf1_->isLocal)
return;
if (!shared1)
buf1_->lock.unlock();
else
buf1_->lock.unlock_shared();
}
void unlock2(void) {
if (buf2_->isLocal)
return;
if (!shared2)
buf2_->lock.unlock();
else
buf2_->lock.unlock_shared();
}
const SndBuf* buf1_;
const SndBuf* buf2_;
};
template <bool shared> struct buffer_lock {
buffer_lock(const SndBuf* buf): buf_(buf) {
if (!buf->isLocal) {
if (shared)
buf->lock.lock_shared();
else
buf->lock.lock();
}
}
~buffer_lock(void) {
if (!buf_->isLocal) {
if (shared)
buf_->lock.unlock_shared();
else
buf_->lock.unlock();
}
}
const SndBuf* buf_;
};
# define ACQUIRE_BUS_AUDIO(index) unit->mWorld->mAudioBusLocks[index].lock()
# define ACQUIRE_BUS_AUDIO_SHARED(index) unit->mWorld->mAudioBusLocks[index].lock_shared()
# define RELEASE_BUS_AUDIO(index) unit->mWorld->mAudioBusLocks[index].unlock()
# define RELEASE_BUS_AUDIO_SHARED(index) unit->mWorld->mAudioBusLocks[index].unlock_shared()
# define LOCK_SNDBUF(buf) buffer_lock<false> lock_##buf(buf)
# define LOCK_SNDBUF_SHARED(buf) buffer_lock<true> lock_##buf(buf);
# define LOCK_SNDBUF2(buf1, buf2) buffer_lock2<false, false> lock_##buf1##_##buf2(buf1, buf2);
# define LOCK_SNDBUF2_SHARED(buf1, buf2) buffer_lock2<true, true> lock_##buf1##_##buf2(buf1, buf2);
# define LOCK_SNDBUF2_EXCLUSIVE_SHARED(buf1, buf2) buffer_lock2<false, true> lock_##buf1##_##buf2(buf1, buf2);
# define LOCK_SNDBUF2_SHARED_EXCLUSIVE(buf1, buf2) buffer_lock2<true, false> lock_##buf1##_##buf2(buf1, buf2);
# define ACQUIRE_SNDBUF(buf) \
do { \
if (!buf->isLocal) \
buf->lock.lock(); \
} while (false)
# define ACQUIRE_SNDBUF_SHARED(buf) \
do { \
if (!buf->isLocal) \
buf->lock.lock_shared(); \
} while (false)
# define RELEASE_SNDBUF(buf) \
do { \
if (!buf->isLocal) \
buf->lock.unlock(); \
} while (false)
# define RELEASE_SNDBUF_SHARED(buf) \
do { \
if (!buf->isLocal) \
buf->lock.unlock_shared(); \
} while (false)
# define ACQUIRE_BUS_CONTROL(index) unit->mWorld->mControlBusLock->lock()
# define RELEASE_BUS_CONTROL(index) unit->mWorld->mControlBusLock->unlock()
#else
# define ACQUIRE_BUS_AUDIO(index)
# define ACQUIRE_BUS_AUDIO_SHARED(index)
# define RELEASE_BUS_AUDIO(index)
# define RELEASE_BUS_AUDIO_SHARED(index)
# define LOCK_SNDBUF(buf)
# define LOCK_SNDBUF_SHARED(buf)
# define LOCK_SNDBUF2(buf1, buf2)
# define LOCK_SNDBUF2_SHARED(buf1, buf2)
# define LOCK_SNDBUF2_EXCLUSIVE_SHARED(buf1, buf2)
# define LOCK_SNDBUF2_SHARED_EXCLUSIVE(buf1, buf2)
# define ACQUIRE_SNDBUF(buf)
# define ACQUIRE_SNDBUF_SHARED(buf)
# define RELEASE_SNDBUF(buf)
# define RELEASE_SNDBUF_SHARED(buf)
# define ACQUIRE_BUS_CONTROL(index)
# define RELEASE_BUS_CONTROL(index)
#endif
// macros to grab a Buffer reference from the buffer indicated by the UGen's FIRST input
#define GET_BUF \
float fbufnum = ZIN0(0); \
if (fbufnum < 0.f) { \
fbufnum = 0.f; \
} \
if (fbufnum != unit->m_fbufnum) { \
uint32 bufnum = (int)fbufnum; \
World* world = unit->mWorld; \
if (bufnum >= world->mNumSndBufs) { \
int localBufNum = bufnum - world->mNumSndBufs; \
Graph* parent = unit->mParent; \
if (localBufNum <= parent->localBufNum) { \
unit->m_buf = parent->mLocalSndBufs + localBufNum; \
} else { \
bufnum = 0; \
unit->m_buf = world->mSndBufs + bufnum; \
} \
} else { \
unit->m_buf = world->mSndBufs + bufnum; \
} \
unit->m_fbufnum = fbufnum; \
} \
SndBuf* buf = unit->m_buf; \
LOCK_SNDBUF(buf); \
float* bufData __attribute__((__unused__)) = buf->data; \
uint32 bufChannels __attribute__((__unused__)) = buf->channels; \
uint32 bufSamples __attribute__((__unused__)) = buf->samples; \
uint32 bufFrames = buf->frames; \
int mask __attribute__((__unused__)) = buf->mask; \
int guardFrame __attribute__((__unused__)) = bufFrames - 2;
#define GET_BUF_SHARED \
float fbufnum = ZIN0(0); \
if (fbufnum < 0.f) { \
fbufnum = 0.f; \
} \
if (fbufnum != unit->m_fbufnum) { \
uint32 bufnum = (int)fbufnum; \
World* world = unit->mWorld; \
if (bufnum >= world->mNumSndBufs) { \
int localBufNum = bufnum - world->mNumSndBufs; \
Graph* parent = unit->mParent; \
if (localBufNum <= parent->localBufNum) { \
unit->m_buf = parent->mLocalSndBufs + localBufNum; \
} else { \
bufnum = 0; \
unit->m_buf = world->mSndBufs + bufnum; \
} \
} else { \
unit->m_buf = world->mSndBufs + bufnum; \
} \
unit->m_fbufnum = fbufnum; \
} \
const SndBuf* buf = unit->m_buf; \
LOCK_SNDBUF_SHARED(buf); \
const float* bufData __attribute__((__unused__)) = buf->data; \
uint32 bufChannels __attribute__((__unused__)) = buf->channels; \
uint32 bufSamples __attribute__((__unused__)) = buf->samples; \
uint32 bufFrames = buf->frames; \
int mask __attribute__((__unused__)) = buf->mask; \
int guardFrame __attribute__((__unused__)) = bufFrames - 2;
#define SIMPLE_GET_BUF \
float fbufnum = ZIN0(0); \
fbufnum = sc_max(0.f, fbufnum); \
if (fbufnum != unit->m_fbufnum) { \
uint32 bufnum = (int)fbufnum; \
World* world = unit->mWorld; \
if (bufnum >= world->mNumSndBufs) { \
int localBufNum = bufnum - world->mNumSndBufs; \
Graph* parent = unit->mParent; \
if (localBufNum <= parent->localBufNum) { \
unit->m_buf = parent->mLocalSndBufs + localBufNum; \
} else { \
bufnum = 0; \
unit->m_buf = world->mSndBufs + bufnum; \
} \
} else { \
unit->m_buf = world->mSndBufs + bufnum; \
} \
unit->m_fbufnum = fbufnum; \
} \
SndBuf* buf = unit->m_buf;
#define SIMPLE_GET_BUF_EXCLUSIVE \
SIMPLE_GET_BUF; \
LOCK_SNDBUF(buf);
#define SIMPLE_GET_BUF_SHARED \
SIMPLE_GET_BUF; \
LOCK_SNDBUF_SHARED(buf);
// macros to get pseudo-random number generator, and put its state in registers
#define RGET \
RGen& rgen = *unit->mParent->mRGen; \
uint32 s1 = rgen.s1; \
uint32 s2 = rgen.s2; \
uint32 s3 = rgen.s3;
#define RPUT \
rgen.s1 = s1; \
rgen.s2 = s2; \
rgen.s3 = s3;
typedef void (*UnitCmdFunc)(struct Unit* unit, struct sc_msg_iter* args);
typedef void (*PlugInCmdFunc)(World* inWorld, void* inUserData, struct sc_msg_iter* args, void* replyAddr);
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