/usr/include/faust/dsp/dsp.h is in faust-common 0.9.95~repack1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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IMPORTANT NOTE : this file contains two clearly delimited sections :
the ARCHITECTURE section (in two parts) and the USER section. Each section
is governed by its own copyright and license. Please check individually
each section for license and copyright information.
*************************************************************************/
/*******************BEGIN ARCHITECTURE SECTION (part 1/2)****************/
/************************************************************************
FAUST Architecture File
Copyright (C) 2003-2011 GRAME, Centre National de Creation Musicale
---------------------------------------------------------------------
This Architecture section 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 3 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, see <http://www.gnu.org/licenses/>.
EXCEPTION : As a special exception, you may create a larger work
that contains this FAUST architecture section and distribute
that work under terms of your choice, so long as this FAUST
architecture section is not modified.
************************************************************************
************************************************************************/
/******************************************************************************
*******************************************************************************
FAUST DSP
*******************************************************************************
*******************************************************************************/
#ifndef __dsp__
#define __dsp__
#ifndef FAUSTFLOAT
#define FAUSTFLOAT float
#endif
class UI;
struct Meta;
/**
* Signal processor definition.
*/
class dsp {
public:
dsp() {}
virtual ~dsp() {}
/* Return instance number of audio inputs */
virtual int getNumInputs() = 0;
/* Return instance number of audio outputs */
virtual int getNumOutputs() = 0;
/**
* Trigger the UI* parameter with instance specific calls
* to 'addBtton', 'addVerticalSlider'... in order to build the UI.
*
* @param ui_interface - the UI* user interface builder
*/
virtual void buildUserInterface(UI* ui_interface) = 0;
/* Returns the sample rate currently used by the instance */
virtual int getSampleRate() = 0;
/** Global init, calls the following methods :
* - static class 'classInit' : static table initialisation
* - 'instanceInit' : constants and instance table initialisation
*
* @param samplingRate - the sampling rate in Herz
*/
virtual void init(int samplingRate) = 0;
/** Init instance state
*
* @param samplingRate - the sampling rate in Herz
*/
virtual void instanceInit(int samplingRate) = 0;
/** Init instance constant state
*
* @param samplingRate - the sampling rate in Herz
*/
virtual void instanceConstants(int samplingRate) = 0;
/* Init default control parameters values */
virtual void instanceResetUserInterface() = 0;
/* Init instance state (delay lines...) */
virtual void instanceClear() = 0;
/**
* Return a clone of the instance.
*
* @return a copy of the instance on success, otherwise a null pointer.
*/
virtual dsp* clone() = 0;
/**
* Trigger the Meta* parameter with instance specific calls to 'declare' (key, value metadata).
*
* @param m - the Meta* meta user
*/
virtual void metadata(Meta* m) = 0;
/**
* DSP instance computation, to be called with sucessive in/out audio buffers.
*
* @param count - the nomber of frames to compute
* @param inputs - the input audio buffers as an array of non-interleaved FAUSTFLOAT samples (eiher float, doucbe or quad)
* @param outputs - the output audio buffers as an array of non-interleaved FAUSTFLOAT samples (eiher float, doucbe or quad)
*
*/
virtual void compute(int count, FAUSTFLOAT** inputs, FAUSTFLOAT** outputs) = 0;
/**
* DSP instance computation : alternative method to be used by subclasses.
*
* @param date_usec - the timestamp in microsec given by audio driver.
* @param count - the nomber of frames to compute
* @param inputs - the input audio buffers as an array of non-interleaved FAUSTFLOAT samples (eiher float, doucbe or quad)
* @param outputs - the output audio buffers as an array of non-interleaved FAUSTFLOAT samples (eiher float, doucbe or quad)
*
*/
virtual void compute(double date_usec, int count, FAUSTFLOAT** inputs, FAUSTFLOAT** outputs) { compute(count, inputs, outputs); }
};
/**
* Generic DSP decorator.
*/
class decorator_dsp : public dsp {
protected:
dsp* fDSP;
public:
decorator_dsp(dsp* dsp = 0):fDSP(dsp) {}
virtual ~decorator_dsp() { delete fDSP; }
virtual int getNumInputs() { return fDSP->getNumInputs(); }
virtual int getNumOutputs() { return fDSP->getNumOutputs(); }
virtual void buildUserInterface(UI* ui_interface) { fDSP->buildUserInterface(ui_interface); }
virtual int getSampleRate() { return fDSP->getSampleRate(); }
virtual void init(int samplingRate) { fDSP->init(samplingRate); }
virtual void instanceInit(int samplingRate) { fDSP->instanceInit(samplingRate); }
virtual void instanceConstants(int samplingRate) { fDSP->instanceConstants(samplingRate); }
virtual void instanceResetUserInterface() { fDSP->instanceResetUserInterface(); }
virtual void instanceClear() { fDSP->instanceClear(); }
virtual decorator_dsp* clone() { return new decorator_dsp(fDSP->clone()); }
virtual void metadata(Meta* m) { return fDSP->metadata(m); }
virtual void compute(int count, FAUSTFLOAT** inputs, FAUSTFLOAT** outputs) { fDSP->compute(count, inputs, outputs); }
virtual void compute(double date_usec, int count, FAUSTFLOAT** inputs, FAUSTFLOAT** outputs) { fDSP->compute(date_usec, count, inputs, outputs); }
};
/**
* On Intel set FZ (Flush to Zero) and DAZ (Denormals Are Zero)
* flags to avoid costly denormals.
*/
#ifdef __SSE__
#include <xmmintrin.h>
#ifdef __SSE2__
#define AVOIDDENORMALS _mm_setcsr(_mm_getcsr() | 0x8040)
#else
#define AVOIDDENORMALS _mm_setcsr(_mm_getcsr() | 0x8000)
#endif
#else
#define AVOIDDENORMALS
#endif
#endif
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