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/* FluidSynth - A Software Synthesizer
*
* Copyright (C) 2003 Peter Hanappe and others.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License
* as published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA
*/
#include "fluid_gen.h"
#include "fluid_chan.h"
/* See SFSpec21 $8.1.3 */
fluid_gen_info_t fluid_gen_info[] = {
/* number/name init scale min max def */
{ GEN_STARTADDROFS, 1, 1, 0.0f, 1e10f, 0.0f },
{ GEN_ENDADDROFS, 1, 1, -1e10f, 0.0f, 0.0f },
{ GEN_STARTLOOPADDROFS, 1, 1, -1e10f, 1e10f, 0.0f },
{ GEN_ENDLOOPADDROFS, 1, 1, -1e10f, 1e10f, 0.0f },
{ GEN_STARTADDRCOARSEOFS, 0, 1, 0.0f, 1e10f, 0.0f },
{ GEN_MODLFOTOPITCH, 1, 2, -12000.0f, 12000.0f, 0.0f },
{ GEN_VIBLFOTOPITCH, 1, 2, -12000.0f, 12000.0f, 0.0f },
{ GEN_MODENVTOPITCH, 1, 2, -12000.0f, 12000.0f, 0.0f },
{ GEN_FILTERFC, 1, 2, 1500.0f, 13500.0f, 13500.0f },
{ GEN_FILTERQ, 1, 1, 0.0f, 960.0f, 0.0f },
{ GEN_MODLFOTOFILTERFC, 1, 2, -12000.0f, 12000.0f, 0.0f },
{ GEN_MODENVTOFILTERFC, 1, 2, -12000.0f, 12000.0f, 0.0f },
{ GEN_ENDADDRCOARSEOFS, 0, 1, -1e10f, 0.0f, 0.0f },
{ GEN_MODLFOTOVOL, 1, 1, -960.0f, 960.0f, 0.0f },
{ GEN_UNUSED1, 0, 0, 0.0f, 0.0f, 0.0f },
{ GEN_CHORUSSEND, 1, 1, 0.0f, 1000.0f, 0.0f },
{ GEN_REVERBSEND, 1, 1, 0.0f, 1000.0f, 0.0f },
{ GEN_PAN, 1, 1, -500.0f, 500.0f, 0.0f },
{ GEN_UNUSED2, 0, 0, 0.0f, 0.0f, 0.0f },
{ GEN_UNUSED3, 0, 0, 0.0f, 0.0f, 0.0f },
{ GEN_UNUSED4, 0, 0, 0.0f, 0.0f, 0.0f },
{ GEN_MODLFODELAY, 1, 2, -12000.0f, 5000.0f, -12000.0f },
{ GEN_MODLFOFREQ, 1, 4, -16000.0f, 4500.0f, 0.0f },
{ GEN_VIBLFODELAY, 1, 2, -12000.0f, 5000.0f, -12000.0f },
{ GEN_VIBLFOFREQ, 1, 4, -16000.0f, 4500.0f, 0.0f },
{ GEN_MODENVDELAY, 1, 2, -12000.0f, 5000.0f, -12000.0f },
{ GEN_MODENVATTACK, 1, 2, -12000.0f, 8000.0f, -12000.0f },
{ GEN_MODENVHOLD, 1, 2, -12000.0f, 5000.0f, -12000.0f },
{ GEN_MODENVDECAY, 1, 2, -12000.0f, 8000.0f, -12000.0f },
{ GEN_MODENVSUSTAIN, 0, 1, 0.0f, 1000.0f, 0.0f },
{ GEN_MODENVRELEASE, 1, 2, -12000.0f, 8000.0f, -12000.0f },
{ GEN_KEYTOMODENVHOLD, 0, 1, -1200.0f, 1200.0f, 0.0f },
{ GEN_KEYTOMODENVDECAY, 0, 1, -1200.0f, 1200.0f, 0.0f },
{ GEN_VOLENVDELAY, 1, 2, -12000.0f, 5000.0f, -12000.0f },
{ GEN_VOLENVATTACK, 1, 2, -12000.0f, 8000.0f, -12000.0f },
{ GEN_VOLENVHOLD, 1, 2, -12000.0f, 5000.0f, -12000.0f },
{ GEN_VOLENVDECAY, 1, 2, -12000.0f, 8000.0f, -12000.0f },
{ GEN_VOLENVSUSTAIN, 0, 1, 0.0f, 1440.0f, 0.0f },
{ GEN_VOLENVRELEASE, 1, 2, -12000.0f, 8000.0f, -12000.0f },
{ GEN_KEYTOVOLENVHOLD, 0, 1, -1200.0f, 1200.0f, 0.0f },
{ GEN_KEYTOVOLENVDECAY, 0, 1, -1200.0f, 1200.0f, 0.0f },
{ GEN_INSTRUMENT, 0, 0, 0.0f, 0.0f, 0.0f },
{ GEN_RESERVED1, 0, 0, 0.0f, 0.0f, 0.0f },
{ GEN_KEYRANGE, 0, 0, 0.0f, 127.0f, 0.0f },
{ GEN_VELRANGE, 0, 0, 0.0f, 127.0f, 0.0f },
{ GEN_STARTLOOPADDRCOARSEOFS, 0, 1, -1e10f, 1e10f, 0.0f },
{ GEN_KEYNUM, 1, 0, 0.0f, 127.0f, -1.0f },
{ GEN_VELOCITY, 1, 1, 0.0f, 127.0f, -1.0f },
{ GEN_ATTENUATION, 1, 1, 0.0f, 1440.0f, 0.0f },
{ GEN_RESERVED2, 0, 0, 0.0f, 0.0f, 0.0f },
{ GEN_ENDLOOPADDRCOARSEOFS, 0, 1, -1e10f, 1e10f, 0.0f },
{ GEN_COARSETUNE, 0, 1, -120.0f, 120.0f, 0.0f },
{ GEN_FINETUNE, 0, 1, -99.0f, 99.0f, 0.0f },
{ GEN_SAMPLEID, 0, 0, 0.0f, 0.0f, 0.0f },
{ GEN_SAMPLEMODE, 0, 0, 0.0f, 0.0f, 0.0f },
{ GEN_RESERVED3, 0, 0, 0.0f, 0.0f, 0.0f },
{ GEN_SCALETUNE, 0, 1, 0.0f, 1200.0f, 100.0f },
{ GEN_EXCLUSIVECLASS, 0, 0, 0.0f, 0.0f, 0.0f },
{ GEN_OVERRIDEROOTKEY, 1, 0, 0.0f, 127.0f, -1.0f },
{ GEN_PITCH, 1, 0, 0.0f, 127.0f, 0.0f }
};
/**
* Set an array of generators to their default values.
* @param gen Array of generators (should be #GEN_LAST in size).
* @return Always returns 0
*/
int
fluid_gen_set_default_values(fluid_gen_t* gen)
{
int i;
for (i = 0; i < GEN_LAST; i++) {
gen[i].flags = GEN_UNUSED;
gen[i].mod = 0.0;
gen[i].nrpn = 0.0;
gen[i].val = fluid_gen_info[i].def;
}
return FLUID_OK;
}
/* fluid_gen_init
*
* Set an array of generators to their initial value
*/
int
fluid_gen_init(fluid_gen_t* gen, fluid_channel_t* channel)
{
int i;
fluid_gen_set_default_values(gen);
for (i = 0; i < GEN_LAST; i++) {
gen[i].nrpn = fluid_channel_get_gen(channel, i);
/* This is an extension to the SoundFont standard. More
* documentation is available at the fluid_synth_set_gen2()
* function. */
if (fluid_channel_get_gen_abs(channel, i)) {
gen[i].flags = GEN_ABS_NRPN;
}
}
return FLUID_OK;
}
fluid_real_t fluid_gen_scale(int gen, float value)
{
return (fluid_gen_info[gen].min
+ value * (fluid_gen_info[gen].max - fluid_gen_info[gen].min));
}
fluid_real_t fluid_gen_scale_nrpn(int gen, int data)
{
fluid_real_t value = (float) data - 8192.0f;
fluid_clip(value, -8192, 8192);
return value * (float) fluid_gen_info[gen].nrpn_scale;
}
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