addsynth_component_filter_envelope.cpp

   1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
   2 /*****************************************************************************
   3  *
   4  *   Copyright (C) 2006,2007,2008,2009 Nedko Arnaudov <nedko@arnaudov.name>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; version 2 of the License
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program; if not, write to the Free Software
  17  *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  *****************************************************************************/
  20
  21 #include <stdbool.h>
  22 #include <assert.h>
  23
  24 #include "common.h"
  25 #include "globals.h"
  26 #include "addsynth.h"
  27 #include "lfo_parameters.h"
  28 #include "filter_parameters.h"
  29 #include "envelope_parameters.h"
  30 #include "resonance.h"
  31 #include "fft.h"
  32 #include "oscillator.h"
  33 #include "portamento.h"
  34 #include "addsynth_internal.h"
  35 #include "log.h"
  36
  37 #define envelope_params_ptr ((EnvelopeParams * )context)
  38
  39 float
  40 zyn_component_filter_envelope_get_float(
  41   void * context,
  42   unsigned int parameter)
  43 {
  44     switch (parameter)
  45     {
  46     case ZYNADD_PARAMETER_FLOAT_ENV_ATTACK_VALUE:
  47       return percent_from_0_127(
  48         envelope_params_ptr->get_value(
  49           envelope_params_ptr->m_attack_value_index));
  50     case ZYNADD_PARAMETER_FLOAT_ENV_ATTACK_DURATION:
  51       return percent_from_0_127(
  52         envelope_params_ptr->get_duration(
  53           envelope_params_ptr->m_attack_duration_index));
  54     case ZYNADD_PARAMETER_FLOAT_ENV_DECAY_VALUE:
  55       return percent_from_0_127(
  56         envelope_params_ptr->get_value(
  57           envelope_params_ptr->m_decay_value_index));
  58     case ZYNADD_PARAMETER_FLOAT_ENV_DECAY_DURATION:
  59       return percent_from_0_127(
  60         envelope_params_ptr->get_duration(
  61           envelope_params_ptr->m_decay_duration_index));
  62     case ZYNADD_PARAMETER_FLOAT_ENV_RELEASE_VALUE:
  63       return percent_from_0_127(
  64         envelope_params_ptr->get_value(
  65           envelope_params_ptr->m_release_value_index));
  66     case ZYNADD_PARAMETER_FLOAT_ENV_RELEASE_DURATION:
  67       return percent_from_0_127(
  68         envelope_params_ptr->get_duration(
  69           envelope_params_ptr->m_release_duration_index));
  70     case ZYNADD_PARAMETER_FLOAT_ENV_STRETCH:
  71       return percent_from_0_127(envelope_params_ptr->m_stretch) * 2;
  72     default:
  73       LOG_ERROR("Unknown filter envelope parameter %u", parameter);
  74       assert(0);
  75     }
  76 }
  77
  78 void
  79 zyn_component_filter_envelope_set_float(
  80   void * context,
  81   unsigned int parameter,
  82   float value)
  83 {
  84     switch (parameter)
  85     {
  86     case ZYNADD_PARAMETER_FLOAT_ENV_ATTACK_VALUE:
  87       envelope_params_ptr->set_value(
  88         envelope_params_ptr->m_attack_value_index,
  89         percent_to_0_127(value));
  90       return;
  91     case ZYNADD_PARAMETER_FLOAT_ENV_ATTACK_DURATION:
  92       envelope_params_ptr->set_duration(
  93         envelope_params_ptr->m_attack_duration_index,
  94         percent_to_0_127(value));
  95       return;
  96     case ZYNADD_PARAMETER_FLOAT_ENV_DECAY_VALUE:
  97       envelope_params_ptr->set_value(
  98         envelope_params_ptr->m_decay_value_index,
  99         percent_to_0_127(value));
 100       return;
 101     case ZYNADD_PARAMETER_FLOAT_ENV_DECAY_DURATION:
 102       envelope_params_ptr->set_duration(
 103         envelope_params_ptr->m_decay_duration_index,
 104         percent_to_0_127(value));
 105       return;
 106     case ZYNADD_PARAMETER_FLOAT_ENV_RELEASE_VALUE:
 107       envelope_params_ptr->set_value(
 108         envelope_params_ptr->m_release_value_index,
 109         percent_to_0_127(value));
 110       return;
 111     case ZYNADD_PARAMETER_FLOAT_ENV_RELEASE_DURATION:
 112       envelope_params_ptr->set_duration(
 113         envelope_params_ptr->m_release_duration_index,
 114         percent_to_0_127(value));
 115       return;
 116     case ZYNADD_PARAMETER_FLOAT_ENV_STRETCH:
 117       envelope_params_ptr->m_stretch = percent_to_0_127(value/2);
 118       return;
 119     default:
 120       LOG_ERROR("Unknown filter envelope parameter %u", parameter);
 121       assert(0);
 122     }
 123 }
 124
 125 signed int
 126 zyn_component_filter_envelope_get_int(
 127   void * context,
 128   unsigned int parameter)
 129 {
 130   assert(0);
 131   return 0;
 132 }
 133
 134 void
 135 zyn_component_filter_envelope_set_int(
 136   void * context,
 137   unsigned int parameter,
 138   signed int value)
 139 {
 140   assert(0);
 141 }
 142
 143 bool
 144 zyn_component_filter_envelope_get_bool(
 145   void * context,
 146   unsigned int parameter)
 147 {
 148     switch (parameter)
 149     {
 150     case ZYNADD_PARAMETER_BOOL_ENV_FORCED_RELEASE:
 151       return envelope_params_ptr->m_forced_release;
 152     default:
 153       LOG_ERROR("Unknown bool filter envelope parameter %u", parameter);
 154       assert(0);
 155     }
 156 }
 157
 158 void
 159 zyn_component_filter_envelope_set_bool(
 160   void * context,
 161   unsigned int parameter,
 162   bool value)
 163 {
 164     switch (parameter)
 165     {
 166     case ZYNADD_PARAMETER_BOOL_ENV_FORCED_RELEASE:
 167       envelope_params_ptr->m_forced_release = value;
 168       return;
 169     default:
 170       LOG_ERROR("Unknown bool filter envelope parameter %u", parameter);
 171       assert(0);
 172     }
 173 }
 174
 175 #undef envelope_params_ptr
 176
 177 void
 178 zyn_addsynth_component_init_filter_envelope(
 179   struct zyn_component_descriptor * component_ptr,
 180   EnvelopeParams * envelope_params_ptr)
 181 {
 182   ZYN_INIT_COMPONENT(component_ptr, envelope_params_ptr, zyn_component_filter_envelope_);
 183 }