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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@430 0778d3d1-df1d-0410-868b-ea421aaaa00d
144 lines
3.2 KiB
C++
144 lines
3.2 KiB
C++
/*
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basics.h
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Copyright 2004-5 Tim Goetze <tim@quitte.de>
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http://quitte.de/dsp/
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common constants, typedefs, utility functions
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and simplified LADSPA #defines.
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*/
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/*
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA or point your web browser to http://www.gnu.org.
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*/
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#ifndef _BASICS_H_
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#define _BASICS_H_
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#define _GNU_SOURCE 1
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#define _USE_GNU 1
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/* gcc protects a lot of standard math calls. */
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#define _ISOC99_SOURCE 1
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#define _ISOC9X_SOURCE 1
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <assert.h>
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#include <stdio.h>
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifdef HAVE_LADSPA_H
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#include <ladspa.h>
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#else
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#include "ladspa-1.1.h"
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#endif
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#define BOUNDED (LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE)
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#define INTEGER LADSPA_HINT_INTEGER
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#define FS LADSPA_HINT_SAMPLE_RATE
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#define LOG LADSPA_HINT_LOGARITHMIC
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#define TOGGLE LADSPA_HINT_TOGGLED
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#define DEFAULT_0 LADSPA_HINT_DEFAULT_0
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#define DEFAULT_1 LADSPA_HINT_DEFAULT_1
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#define DEFAULT_100 LADSPA_HINT_DEFAULT_100
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#define DEFAULT_440 LADSPA_HINT_DEFAULT_440
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#define DEFAULT_MIN LADSPA_HINT_DEFAULT_MINIMUM
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#define DEFAULT_LOW LADSPA_HINT_DEFAULT_LOW
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#define DEFAULT_MID LADSPA_HINT_DEFAULT_MIDDLE
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#define DEFAULT_HIGH LADSPA_HINT_DEFAULT_HIGH
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#define DEFAULT_MAX LADSPA_HINT_DEFAULT_MAXIMUM
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#define INPUT LADSPA_PORT_INPUT
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#define OUTPUT LADSPA_PORT_OUTPUT
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#define AUDIO LADSPA_PORT_AUDIO
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#define CONTROL LADSPA_PORT_CONTROL
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#define HARD_RT LADSPA_PROPERTY_HARD_RT_CAPABLE
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#define TEN_TO_THE_SIXTH 1000000
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#define MIN_GAIN .000001 /* -120 dB */
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#define NOISE_FLOOR .00000000000005 /* -266 dB */
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typedef __int8_t int8;
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typedef __uint8_t uint8;
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typedef __int16_t int16;
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typedef __uint16_t uint16;
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typedef __int32_t int32;
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typedef __uint32_t uint32;
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typedef __int64_t int64;
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typedef __uint64_t uint64;
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typedef struct {
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char * name;
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LADSPA_PortDescriptor descriptor;
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LADSPA_PortRangeHint range;
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} PortInfo;
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typedef LADSPA_Data d_sample;
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typedef double d_float;
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typedef unsigned long ulong;
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/* flavours for sample store functions run() and run_adding() */
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typedef void (*sample_func_t) (d_sample *, int, d_sample, d_sample);
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inline void
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store_func (d_sample * s, int i, d_sample x, d_sample gain)
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{
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s[i] = x;
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}
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inline void
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adding_func (d_sample * s, int i, d_sample x, d_sample gain)
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{
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s[i] += gain * x;
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}
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#ifndef max
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template <class X, class Y>
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X min (X x, Y y)
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{
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return x < y ? x : (X) y;
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}
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template <class X, class Y>
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X max (X x, Y y)
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{
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return x > y ? x : (X) y;
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}
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#endif /* ! max */
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static inline float
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frandom()
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{
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return (float) random() / (float) RAND_MAX;
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}
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#endif /* _BASICS_H_ */
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