addsynth_component_amp_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_amp_envelope_get_float(
  41   void * context,
  42   unsigned int parameter)
  43 {
  44   switch (parameter)
  45   {
  46   case ZYNADD_PARAMETER_FLOAT_ENV_ATTACK_DURATION:
  47     return percent_from_0_127(
  48       envelope_params_ptr->get_duration(
  49         envelope_params_ptr->m_attack_duration_index));
  50   case ZYNADD_PARAMETER_FLOAT_ENV_DECAY_DURATION:
  51     return percent_from_0_127(
  52       envelope_params_ptr->get_duration(
  53         envelope_params_ptr->m_decay_duration_index));
  54   case ZYNADD_PARAMETER_FLOAT_ENV_SUSTAIN_VALUE:
  55     return percent_from_0_127(
  56       envelope_params_ptr->get_value(
  57         envelope_params_ptr->m_sustain_value_index));
  58   case ZYNADD_PARAMETER_FLOAT_ENV_RELEASE_DURATION:
  59     return percent_from_0_127(
  60       envelope_params_ptr->get_duration(
  61         envelope_params_ptr->m_release_duration_index));
  62   case ZYNADD_PARAMETER_FLOAT_ENV_STRETCH:
  63     return percent_from_0_127(
  64       envelope_params_ptr->m_stretch) * 2;
  65   default:
  66     LOG_ERROR("Unknown amplitude envelope parameter %u", parameter);
  67     assert(0);
  68   }
  69 }
  70
  71 void
  72 zyn_component_amp_envelope_set_float(
  73   void * context,
  74   unsigned int parameter,
  75   float value)
  76 {
  77   switch (parameter)
  78   {
  79   case ZYNADD_PARAMETER_FLOAT_ENV_ATTACK_DURATION:
  80     envelope_params_ptr->set_duration(
  81       envelope_params_ptr->m_attack_duration_index,
  82       percent_to_0_127(value));
  83     return;
  84   case ZYNADD_PARAMETER_FLOAT_ENV_DECAY_DURATION:
  85     envelope_params_ptr->set_duration(
  86       envelope_params_ptr->m_decay_duration_index,
  87       percent_to_0_127(value));
  88     return;
  89   case ZYNADD_PARAMETER_FLOAT_ENV_SUSTAIN_VALUE:
  90     envelope_params_ptr->set_value(
  91       envelope_params_ptr->m_sustain_value_index,
  92       percent_to_0_127(value));
  93     return;
  94   case ZYNADD_PARAMETER_FLOAT_ENV_RELEASE_DURATION:
  95     envelope_params_ptr->set_duration(
  96       envelope_params_ptr->m_release_duration_index,
  97       percent_to_0_127(value));
  98     return;
  99   case ZYNADD_PARAMETER_FLOAT_ENV_STRETCH:
 100     envelope_params_ptr->m_stretch = percent_to_0_127(value/2);
 101     return;
 102   default:
 103     LOG_ERROR("Unknown amplitude envelope parameter %u", parameter);
 104     assert(0);
 105   }
 106 }
 107
 108 signed int
 109 zyn_component_amp_envelope_get_int(
 110   void * context,
 111   unsigned int parameter)
 112 {
 113   assert(0);
 114   return 0;
 115 }
 116
 117 void
 118 zyn_component_amp_envelope_set_int(
 119   void * context,
 120   unsigned int parameter,
 121   signed int value)
 122 {
 123   assert(0);
 124 }
 125
 126 bool
 127 zyn_component_amp_envelope_get_bool(
 128   void * context,
 129   unsigned int parameter)
 130 {
 131   switch (parameter)
 132   {
 133   case ZYNADD_PARAMETER_BOOL_ENV_FORCED_RELEASE:
 134     return envelope_params_ptr->m_forced_release;
 135   case ZYNADD_PARAMETER_BOOL_ENV_LINEAR:
 136     return envelope_params_ptr->m_linear;
 137   default:
 138     LOG_ERROR("Unknown bool amplitude envelope parameter %u", parameter);
 139     assert(0);
 140   }
 141 }
 142
 143 void
 144 zyn_component_amp_envelope_set_bool(
 145   void * context,
 146   unsigned int parameter,
 147   bool value)
 148 {
 149   switch (parameter)
 150   {
 151   case ZYNADD_PARAMETER_BOOL_ENV_FORCED_RELEASE:
 152     envelope_params_ptr->m_forced_release = value;
 153     return;
 154   case ZYNADD_PARAMETER_BOOL_ENV_LINEAR:
 155     envelope_params_ptr->m_linear = value;
 156     return;
 157   default:
 158     LOG_ERROR("Unknown bool amplitude envelope parameter %u", parameter);
 159     assert(0);
 160   }
 161 }
 162
 163 #undef envelope_params_ptr
 164
 165 void
 166 zyn_addsynth_component_init_amp_envelope(
 167   struct zyn_component_descriptor * component_ptr,
 168   EnvelopeParams * envelope_params_ptr)
 169 {
 170   ZYN_INIT_COMPONENT(component_ptr, envelope_params_ptr, zyn_component_amp_envelope_);
 171 }