src/calf/modules_tools.h

   1 /* Calf DSP plugin pack
   2  * Assorted plugins
   3  *
   4  * Copyright (C) 2001-2010 Krzysztof Foltman, Markus Schmidt, Thor Harald Johansen and others
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General
  17  * Public License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21 #ifndef CALF_MODULES_TOOLS_H
  22 #define CALF_MODULES_TOOLS_H
  23
  24 #include <assert.h>
  25 #include <limits.h>
  26 #include "biquad.h"
  27 #include "inertia.h"
  28 #include "audio_fx.h"
  29 #include "analyzer.h"
  30 #include "giface.h"
  31 #include "metadata.h"
  32 #include "loudness.h"
  33 #include <math.h>
  34 #include "plugin_tools.h"
  35 #include "bypass.h"
  36
  37 namespace calf_plugins {
  38
  39 struct ladspa_plugin_info;
  40
  41 /**********************************************************************
  42  * STEREO TOOLS by Markus Schmidt
  43 **********************************************************************/
  44
  45 class stereo_audio_module:
  46     public audio_module<stereo_metadata>
  47 {
  48     typedef stereo_audio_module AM;
  49     uint32_t srate;
  50     bool active;
  51     dsp::bypass bypass;
  52     float meter_inL, meter_inR, meter_outL, meter_outR, meter_phase;
  53     vumeters meters;
  54
  55     float * buffer;
  56     unsigned int pos;
  57     unsigned int buffer_size;
  58     static inline float sign(float x) {
  59         if(x < 0) return -1.f;
  60         if(x > 0) return 1.f;
  61         return 0.f;
  62     }
  63     float _phase, _phase_sin_coef, _phase_cos_coef, _sc_level, _inv_atan_shape;
  64 public:
  65     stereo_audio_module();
  66     ~stereo_audio_module();
  67     void params_changed();
  68     void activate();
  69     void set_sample_rate(uint32_t sr);
  70     void deactivate();
  71     uint32_t process(uint32_t offset, uint32_t numsamples, uint32_t inputs_mask, uint32_t outputs_mask);
  72 };
  73
  74 /**********************************************************************
  75  * MONO INPUT by Markus Schmidt
  76 **********************************************************************/
  77
  78 class mono_audio_module:
  79     public audio_module<mono_metadata>
  80 {
  81     typedef mono_audio_module AM;
  82     uint32_t srate;
  83     bool active;
  84     dsp::bypass bypass;
  85     float meter_in, meter_outL, meter_outR;
  86     vumeters meters;
  87
  88     float * buffer;
  89     unsigned int pos;
  90     unsigned int buffer_size;
  91     static inline float sign(float x) {
  92         if(x < 0) return -1.f;
  93         if(x > 0) return 1.f;
  94         return 0.f;
  95     }
  96     float _phase, _phase_sin_coef, _phase_cos_coef, _sc_level, _inv_atan_shape;
  97 public:
  98     mono_audio_module();
  99     ~mono_audio_module();
 100     void params_changed();
 101     void activate();
 102     void set_sample_rate(uint32_t sr);
 103     void deactivate();
 104     uint32_t process(uint32_t offset, uint32_t numsamples, uint32_t inputs_mask, uint32_t outputs_mask);
 105 };
 106
 107 /**********************************************************************
 108  * ANALYZER by Markus Schmidt and Christian Holschuh
 109 **********************************************************************/
 110
 111 class analyzer_audio_module:
 112     public audio_module<analyzer_metadata>, public phase_graph_iface,
 113     public frequency_response_line_graph
 114 {
 115     typedef analyzer_audio_module AM;
 116     uint32_t srate;
 117     bool active;
 118     float envelope;
 119     float attack_coef;
 120     float release_coef;
 121     uint32_t clip_L, clip_R;
 122     float meter_L, meter_R;
 123     analyzer _analyzer;
 124 public:
 125     analyzer_audio_module();
 126     void params_changed();
 127     void activate();
 128     void set_sample_rate(uint32_t sr);
 129     void deactivate();
 130     uint32_t process(uint32_t offset, uint32_t numsamples, uint32_t inputs_mask, uint32_t outputs_mask);
 131     bool get_phase_graph(float ** _buffer, int * _length, int * _mode, bool * _use_fade, float * _fade, int * _accuracy, bool * _display) const;
 132     bool get_graph(int index, int subindex, int phase, float *data, int points, cairo_iface *context, int *mode) const;
 133     bool get_moving(int index, int subindex, int &direction, float *data, int x, int y, int &offset, uint32_t &color) const;
 134     bool get_gridline(int index, int subindex, int phase, float &pos, bool &vertical, std::string &legend, cairo_iface *context) const;
 135     bool get_layers(int index, int generation, unsigned int &layers) const;
 136     ~analyzer_audio_module();
 137 protected:
 138     static const int max_phase_buffer_size = 8192;
 139     int phase_buffer_size;
 140     float *phase_buffer;
 141     int ppos;
 142     int plength;
 143 };
 144
 145 /**********************************************************************
 146  * WIDGET TEST
 147 **********************************************************************/
 148
 149 class widgets_audio_module:
 150     public audio_module<widgets_metadata>
 151 {
 152     uint32_t srate;
 153     vumeters meters;
 154     dsp::simple_lfo lfo_sin, lfo_sqr, lfo_tri;
 155 public:
 156     widgets_audio_module();
 157     ~widgets_audio_module();
 158     void params_changed();
 159     void set_sample_rate(uint32_t sr);
 160     uint32_t process(uint32_t offset, uint32_t numsamples, uint32_t inputs_mask, uint32_t outputs_mask);
 161 };
 162
 163 };
 164 #endif