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+/*
+ ZynAddSubFX - a software synthesizer
+
+ globals.h - it contains program settings and the program capabilities
+ like number of parts, of effects
+ Copyright (C) 2002-2005 Nasca Octavian Paul
+ Author: Nasca Octavian Paul
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of version 2 of the GNU General Public License
+ as published by the Free Software Foundation.
+
+ 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 (version 2) for more details.
+
+ You should have received a copy of the GNU General Public License (version 2)
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+*/
+
+
+#ifndef GLOBALS_H
+#define GLOBALS_H
+
+//What float type I use for internal sampledata
+#define REALTYPE float
+
+struct FFTFREQS{
+ REALTYPE *s,*c;//sine and cosine components
+};
+
+extern void newFFTFREQS(FFTFREQS *f,int size);
+extern void deleteFFTFREQS(FFTFREQS *f);
+
+// Sampling rate
+extern int SAMPLE_RATE;
+
+/*
+ * The size of a sound buffer (or the granularity)
+ * All internal transfer of sound data use buffer of this size
+ * All parameters are constant during this period of time, exception
+ * some parameters(like amplitudes) which are linear interpolated.
+ * If you increase this you'll ecounter big latencies, but if you
+ * decrease this the CPU requirements gets high.
+ */
+extern int SOUND_BUFFER_SIZE;
+
+
+/*
+ * The size of ADnote Oscillator
+ * Decrease this => poor quality
+ * Increase this => CPU requirements gets high (only at start of the note)
+ */
+extern int OSCIL_SIZE;
+
+/*
+ * The number of harmonics of additive synth
+ * This must be smaller than OSCIL_SIZE/2
+ */
+#define MAX_AD_HARMONICS 128
+
+
+/*
+ * The number of harmonics of substractive
+ */
+#define MAX_SUB_HARMONICS 64
+
+
+/*
+ * The maximum number of samples that are used for 1 PADsynth instrument(or item)
+ */
+#define PAD_MAX_SAMPLES 64
+
+
+/*
+ * Number of parts
+ */
+#define NUM_MIDI_PARTS 16
+
+/*
+ * Number of Midi channes
+ */
+#define NUM_MIDI_CHANNELS 16
+
+/*
+ * The number of voices of additive synth for a single note
+ */
+#define NUM_VOICES 8
+
+/*
+ * The poliphony (notes)
+ */
+#define POLIPHONY 60
+
+/*
+ * Number of system effects
+ */
+#define NUM_SYS_EFX 4
+
+
+/*
+ * Number of insertion effects
+ */
+#define NUM_INS_EFX 8
+
+/*
+ * Number of part's insertion effects
+ */
+#define NUM_PART_EFX 3
+
+/*
+ * Maximum number of the instrument on a part
+ */
+#define NUM_KIT_ITEMS 16
+
+
+/*
+ * How is applied the velocity sensing
+ */
+#define VELOCITY_MAX_SCALE 8.0
+
+/*
+ * The maximum length of instrument's name
+ */
+#define PART_MAX_NAME_LEN 30
+
+/*
+ * The maximum number of bands of the equaliser
+ */
+#define MAX_EQ_BANDS 8
+#if (MAX_EQ_BANDS>=20)
+#error "Too many EQ bands in globals.h"
+#endif
+
+
+/*
+ * Maximum filter stages
+ */
+#define MAX_FILTER_STAGES 5
+
+/*
+ * Formant filter (FF) limits
+ */
+#define FF_MAX_VOWELS 6
+#define FF_MAX_FORMANTS 12
+#define FF_MAX_SEQUENCE 8
+
+#define LOG_2 0.693147181
+#define PI 3.1415926536
+#define LOG_10 2.302585093
+
+/*
+ * The threshold for the amplitude interpolation used if the amplitude
+ * is changed (by LFO's or Envelope's). If the change of the amplitude
+ * is below this, the amplitude is not interpolated
+ */
+#define AMPLITUDE_INTERPOLATION_THRESHOLD 0.0001
+
+/*
+ * How the amplitude threshold is computed
+ */
+#define ABOVE_AMPLITUDE_THRESHOLD(a,b) ( ( 2.0*fabs( (b) - (a) ) / \
+ ( fabs( (b) + (a) + 0.0000000001) ) ) > AMPLITUDE_INTERPOLATION_THRESHOLD )
+
+/*
+ * Interpolate Amplitude
+ */
+#define INTERPOLATE_AMPLITUDE(a,b,x,size) ( (a) + \
+ ( (b) - (a) ) * (REALTYPE)(x) / (REALTYPE) (size) )
+
+
+/*
+ * dB
+ */
+#define dB2rap(dB) ((exp((dB)*LOG_10/20.0)))
+#define rap2dB(rap) ((20*log(rap)/LOG_10))
+
+/*
+ * The random generator (0.0..1.0)
+ */
+#define RND (rand()/(RAND_MAX+1.0))
+
+#define ZERO(data,size) {char *data_=(char *) data;for (int i=0;i<size;i++) data_[i]=0;};
+
+enum ONOFFTYPE{OFF=0,ON=1};
+
+enum MidiControllers{C_NULL=0,C_pitchwheel=1000,C_expression=11,C_panning=10,
+ C_filtercutoff=74,C_filterq=71,C_bandwidth=75,C_modwheel=1,C_fmamp=76,
+ C_volume=7,C_sustain=64,C_allnotesoff=123,C_allsoundsoff=120,C_resetallcontrollers=121,
+ C_portamento=65,C_resonance_center=77,C_resonance_bandwidth=78,
+
+ C_dataentryhi=0x06,C_dataentrylo=0x26,C_nrpnhi=99,C_nrpnlo=98};
+
+
+//is like i=(int)(floor(f))
+#ifdef ASM_F2I_YES
+#define F2I(f,i) __asm__ __volatile__ ("fistpl %0" : "=m" (i) : "t" (f-0.49999999) : "st") ;
+#else
+#define F2I(f,i) (i)=((f>0) ? ( (int)(f) ) :( (int)(f-1.0) ));
+#endif
+
+
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+#endif
+