source/native-plugins/notes.cpp

   1 /*
   2  * Carla Native Plugins
   3  * Copyright (C) 2012-2022 Filipe Coelho <falktx@falktx.com>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of
   8  * the License, or any later version.
   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  * For a full copy of the GNU General Public License see the doc/GPL.txt file.
  16  */
  17
  18 #include "CarlaDefines.h"
  19
  20 #include "CarlaNativeExtUI.hpp"
  21
  22 // -----------------------------------------------------------------------
  23
  24 class NotesPlugin : public NativePluginAndUiClass
  25 {
  26 public:
  27     NotesPlugin(const NativeHostDescriptor* const host)
  28         : NativePluginAndUiClass(host, "notes-ui"),
  29           fCurPage(1) {}
  30
  31 protected:
  32     // -------------------------------------------------------------------
  33     // Plugin parameter calls
  34
  35     uint32_t getParameterCount() const override
  36     {
  37         return 1;
  38     }
  39
  40     const NativeParameter* getParameterInfo(const uint32_t index) const override
  41     {
  42         if (index != 0)
  43             return nullptr;
  44
  45         static NativeParameter param;
  46
  47         param.hints = static_cast<NativeParameterHints>(NATIVE_PARAMETER_IS_ENABLED
  48                                                        |NATIVE_PARAMETER_IS_AUTOMATABLE
  49                                                        |NATIVE_PARAMETER_IS_INTEGER);
  50         param.name  = "Page";
  51         param.unit  = nullptr;
  52         param.ranges.def       = 1.0f;
  53         param.ranges.min       = 1.0f;
  54         param.ranges.max       = 100.0f;
  55         param.ranges.step      = 1.0f;
  56         param.ranges.stepSmall = 1.0f;
  57         param.ranges.stepLarge = 1.0f;
  58         param.scalePointCount  = 0;
  59         param.scalePoints      = nullptr;
  60
  61         return &param;
  62     }
  63
  64     float getParameterValue(const uint32_t index) const override
  65     {
  66         if (index != 0)
  67             return 0.0f;
  68
  69         return static_cast<float>(fCurPage);
  70     }
  71
  72     // -------------------------------------------------------------------
  73     // Plugin state calls
  74
  75     void setParameterValue(const uint32_t index, const float value) override
  76     {
  77         if (index != 0)
  78             return;
  79
  80         fCurPage = static_cast<int>(value);
  81     }
  82
  83     // -------------------------------------------------------------------
  84     // Plugin process calls
  85
  86     void process(const float* const*, float**, const uint32_t, const NativeMidiEvent* const, const uint32_t) override
  87     {
  88     }
  89
  90 private:
  91     int fCurPage;
  92
  93     PluginClassEND(NotesPlugin)
  94     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(NotesPlugin)
  95 };
  96
  97 // -----------------------------------------------------------------------
  98
  99 static const NativePluginDescriptor notesDesc = {
 100     /* category  */ NATIVE_PLUGIN_CATEGORY_UTILITY,
 101     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_RTSAFE
 102                                                   |NATIVE_PLUGIN_HAS_UI),
 103     /* supports  */ NATIVE_PLUGIN_SUPPORTS_NOTHING,
 104     /* audioIns  */ 0,
 105     /* audioOuts */ 0,
 106     /* midiIns   */ 0,
 107     /* midiOuts  */ 0,
 108     /* paramIns  */ 1,
 109     /* paramOuts */ 0,
 110     /* name      */ "Notes",
 111     /* label     */ "notes",
 112     /* maker     */ "falkTX",
 113     /* copyright */ "GNU GPL v2+",
 114     PluginDescriptorFILL(NotesPlugin)
 115 };
 116
 117 // -----------------------------------------------------------------------
 118
 119 CARLA_API_EXPORT
 120 void carla_register_native_plugin_notes();
 121
 122 CARLA_API_EXPORT
 123 void carla_register_native_plugin_notes()
 124 {
 125     carla_register_native_plugin(&notesDesc);
 126 }
 127
 128 // -----------------------------------------------------------------------