Initial work for host parameters module

Signed-off-by: falkTX <falktx@falktx.com>

plugins/Cardinal/plugin.json

@@ -11,5 +11,25 @@
   "manualUrl": "https://github.com/DISTRHO/Cardinal/wiki",
   "sourceUrl": "https://github.com/DISTRHO/Cardinal",
   "changelogUrl": "",
-  "modules": []
+  "modules":
+  [
+    {
+      "slug": "HostParameters",
+      "disabled": false,
+      "name": "Host Parameters",
+      "description": "Exposes host-controlled plugin parameters as module",
+      "tags": [
+        "Utility"
+      ]
+    },
+    {
+      "slug": "HostTime",
+      "disabled": false,
+      "name": "Host Time",
+      "description": "Exposes host-provided timing information as module",
+      "tags": [
+        "Utility"
+      ]
+    }
+  ]
 }

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+         id="path5319"
+         inkscape:connector-curvature="0" />
+    </g>
+  </g>
+</svg>

plugins/Cardinal/res/distrho.svg

@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Creator: CorelDRAW -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xml:space="preserve"
+   width="13.038269"
+   height="13.038269"
+   style="fill-rule:evenodd"
+   viewBox="0 0 1.0504196 1.050423"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.48.3.1 r9886"
+   sodipodi:docname="distrho.svg"><metadata
+   id="metadata32"><rdf:RDF><cc:Work
+       rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+         rdf:resource="http://purl.org/dc/dcmitype/StillImage" /></cc:Work></rdf:RDF></metadata><sodipodi:namedview
+   pagecolor="#ffffff"
+   bordercolor="#666666"
+   borderopacity="1"
+   objecttolerance="10"
+   gridtolerance="10"
+   guidetolerance="10"
+   inkscape:pageopacity="0"
+   inkscape:pageshadow="2"
+   inkscape:window-width="1298"
+   inkscape:window-height="646"
+   id="namedview30"
+   showgrid="false"
+   inkscape:zoom="8.8790964"
+   inkscape:cx="22.667459"
+   inkscape:cy="6.4311119"
+   inkscape:window-x="1792"
+   inkscape:window-y="239"
+   inkscape:window-maximized="0"
+   inkscape:current-layer="Layer_x0020_1"
+   fit-margin-top="0"
+   fit-margin-left="0"
+   fit-margin-right="0"
+   fit-margin-bottom="0" />
+ <defs
+   id="defs4">
+  <style
+   type="text/css"
+   id="style6">
+   
+    .str0 {stroke:#565656;stroke-width:0.0966867}
+    .str1 {stroke:#4F4F4F;stroke-width:0.193345}
+    .fil0 {fill:none}
+    .fil2 {fill:#2B2A29}
+    .fil1 {fill:#6B6B6B}
+   
+  </style>
+ </defs>
+ <g
+   id="Layer_x0020_1"
+   transform="translate(-1.6191379e-5,-0.08553947)">
+  <metadata
+   id="CorelCorpID_0Corel-Layer" />
+  <circle
+   class="fil0 str0"
+   cx="0.525226"
+   cy="0.61075097"
+   r="0.15916"
+   id="circle10"
+   style="fill:none;stroke:#ffffff;stroke-width:0.09668670000000000;stroke-opacity:1"
+   sodipodi:cx="0.525226"
+   sodipodi:cy="0.61075097"
+   sodipodi:rx="0.15916"
+   sodipodi:ry="0.15916"
+   d="m 0.684386,0.61075097 c 0,0.0879016 -0.0712584,0.15916001 -0.15916,0.15916001 -0.0879016,0 -0.15916001,-0.0712584 -0.15916001,-0.15916001 0,-0.0879016 0.0712584,-0.15916 0.15916001,-0.15916 0.0879016,0 0.15916,0.0712584 0.15916,0.15916 z" />
+  <circle
+   class="fil0 str1"
+   cx="0.525226"
+   cy="0.61075097"
+   r="0.42853901"
+   id="circle12"
+   style="fill:none;stroke:#ffffff;stroke-width:0.19334499999999999;stroke-opacity:1"
+   sodipodi:cx="0.525226"
+   sodipodi:cy="0.61075097"
+   sodipodi:rx="0.42853901"
+   sodipodi:ry="0.42853901"
+   d="m 0.953765,0.61075097 c 0,0.23667556 -0.19186344,0.42853903 -0.428539,0.42853903 -0.23667556,0 -0.42853901,-0.19186347 -0.42853901,-0.42853903 0,-0.23667556 0.19186345,-0.428539 0.42853901,-0.428539 0.23667556,0 0.428539,0.19186344 0.428539,0.428539 z" />
+  
+  
+  
+  
+  
+  
+  
+  
+ </g>
+</svg>

plugins/Cardinal/src/HostParameters.cpp

@@ -17,6 +17,26 @@
 
 #include "plugin.hpp"
 
+// -----------------------------------------------------------------------------------------------------------
+// from PluginContext.hpp
+
+namespace DISTRHO {
+
+static constexpr const uint kModuleParameters = 24;
+
+struct CardinalPluginContext : rack::Context {
+    uint32_t bufferSize;
+    double sampleRate;
+    float parameters[kModuleParameters];
+    // more stuff follows, but we dont care..
+};
+
+}
+
+using namespace DISTRHO;
+
+// -----------------------------------------------------------------------------------------------------------
+
 struct HostParameters : Module {
     enum ParamIds {
         NUM_PARAMS
@@ -25,18 +45,55 @@ struct HostParameters : Module {
         NUM_INPUTS
     };
     enum OutputIds {
-        NUM_OUTPUTS
+        NUM_OUTPUTS = 24
     };
     enum LightIds {
         NUM_LIGHTS
     };
 
-    HostParameters() {
+    rack::dsp::SlewLimiter parameters[kModuleParameters];
+    float sampleTime = 0.0f;
+
+    HostParameters()
+    {
         config(NUM_PARAMS, NUM_INPUTS, NUM_OUTPUTS, NUM_LIGHTS);
+
+        CardinalPluginContext* const pcontext = reinterpret_cast<CardinalPluginContext*>(APP);
+
+        if (pcontext == nullptr)
+            throw rack::Exception("Plugin context is null.");
+
+        const float fsampleRate = static_cast<float>(pcontext->sampleRate);
+        SampleRateChangeEvent e = {
+            fsampleRate,
+            1.0f / fsampleRate
+        };
+        onSampleRateChange(e);
     }
 
-    void process(const ProcessArgs&) override {
-        // TODO
+    void process(const ProcessArgs&) override
+    {
+        if (CardinalPluginContext* const pcontext = reinterpret_cast<CardinalPluginContext*>(APP))
+        {
+            for (uint i=0; i<kModuleParameters; ++i)
+                outputs[i].setVoltage(parameters[i].process(sampleTime, pcontext->parameters[i]));
+        }
+    }
+
+    void onSampleRateChange(const SampleRateChangeEvent& e) override
+    {
+        if (CardinalPluginContext* const pcontext = reinterpret_cast<CardinalPluginContext*>(APP))
+        {
+            const double fall = 1.0 / (double(pcontext->bufferSize) / e.sampleRate);
+
+            for (uint i=0; i<kModuleParameters; ++i)
+            {
+                parameters[i].reset();
+                parameters[i].setRiseFall(fall, fall);
+            }
+
+            sampleTime = e.sampleTime;
+        }
     }
 };
 
@@ -44,6 +101,22 @@ struct HostParametersWidget : ModuleWidget {
     HostParametersWidget(HostParameters* const module) {
         setModule(module);
         setPanel(APP->window->loadSvg(asset::plugin(pluginInstance, "res/HostParameters.svg")));
+
+        addChild(createWidget<ScrewSilver>(Vec(RACK_GRID_WIDTH, 0)));
+        addChild(createWidget<ScrewSilver>(Vec(box.size.x - 2 * RACK_GRID_WIDTH, 0)));
+        addChild(createWidget<ScrewSilver>(Vec(RACK_GRID_WIDTH, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));
+        addChild(createWidget<ScrewSilver>(Vec(box.size.x - 2 * RACK_GRID_WIDTH, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));
+
+        const float startX = 10.0f;
+        const float startY = 170.0f;
+        const float padding = 30.0f;
+
+        for (int i=0; i<24; ++i)
+        {
+            const float x = startX + int(i / 6) * padding;
+            const float y = startY + int(i % 6) * padding;
+            addOutput(createOutput<PJ301MPort>(Vec(x, y), module, i));
+        }
     }
 };
 

plugins/plugins.cpp

@@ -769,9 +769,8 @@ static void initStatic__Cardinal()
     const StaticPluginLoader spl(p, "Cardinal");
     if (spl.ok())
     {
-        // TODO implement these
-        // p->addModel(modelHostParameters);
-        // p->addModel(modelHostTime);
+        p->addModel(modelHostParameters);
+        p->addModel(modelHostTime);
     }
 }
 

src/CardinalPlugin.cpp

@@ -119,7 +119,6 @@ static const Initializer& getInitializerInstance()
 
 class CardinalPlugin : public CardinalBasePlugin
 {
-    CardinalPluginContext* const fContext;
     float* fAudioBufferIn;
     float* fAudioBufferOut;
     std::string fAutosavePath;
@@ -129,15 +128,15 @@ class CardinalPlugin : public CardinalBasePlugin
     rack::audio::Device* fCurrentDevice;
     Mutex fDeviceMutex;
 
-    float fParameters[kModuleParameters + kWindowParameterCount];
+    float fWindowParameters[kWindowParameterCount];
 
     struct ScopedContext {
         const MutexLocker cml;
 
         ScopedContext(const CardinalPlugin* const plugin)
-            : cml(plugin->contextMutex)
+            : cml(plugin->context->mutex)
         {
-            rack::contextSet(plugin->fContext);
+            rack::contextSet(plugin->context);
         }
 
         ~ScopedContext()
@@ -149,18 +148,15 @@ class CardinalPlugin : public CardinalBasePlugin
 public:
     CardinalPlugin()
         : CardinalBasePlugin(kModuleParameters + kWindowParameterCount, 0, 1),
-          fContext(new CardinalPluginContext(this)),
           fAudioBufferIn(nullptr),
           fAudioBufferOut(nullptr),
           fIsActive(false),
           fCurrentDevice(nullptr)
     {
-        std::memset(fParameters, 0, sizeof(fParameters));
-
-        fParameters[kModuleParameters + kWindowParameterCableOpacity] = 50.0f;
-        fParameters[kModuleParameters + kWindowParameterCableTension] = 50.0f;
-        fParameters[kModuleParameters + kWindowParameterRackBrightness] = 100.0f;
-        fParameters[kModuleParameters + kWindowParameterHaloBrightness] = 25.0f;
+        fWindowParameters[kWindowParameterCableOpacity] = 50.0f;
+        fWindowParameters[kWindowParameterCableTension] = 50.0f;
+        fWindowParameters[kWindowParameterRackBrightness] = 100.0f;
+        fWindowParameters[kWindowParameterHaloBrightness] = 25.0f;
 
         // create unique temporary path for this instance
         try {
@@ -183,18 +179,18 @@ public:
 
         const ScopedContext sc(this);
 
-        fContext->engine = new rack::engine::Engine;
-        fContext->history = new rack::history::State;
-        fContext->patch = new rack::patch::Manager;
-        fContext->patch->autosavePath = fAutosavePath;
-        fContext->patch->templatePath = CARDINAL_PLUGIN_SOURCE_DIR DISTRHO_OS_SEP_STR "template.vcv";
+        context->engine = new rack::engine::Engine;
+        context->history = new rack::history::State;
+        context->patch = new rack::patch::Manager;
+        context->patch->autosavePath = fAutosavePath;
+        context->patch->templatePath = CARDINAL_PLUGIN_SOURCE_DIR DISTRHO_OS_SEP_STR "template.vcv";
 
-        fContext->event = new rack::widget::EventState;
-        fContext->scene = new rack::app::Scene;
-        fContext->event->rootWidget = fContext->scene;
+        context->event = new rack::widget::EventState;
+        context->scene = new rack::app::Scene;
+        context->event->rootWidget = context->scene;
 
-        fContext->patch->loadTemplate();
-        fContext->engine->startFallbackThread();
+        context->patch->loadTemplate();
+        context->engine->startFallbackThread();
     }
 
     ~CardinalPlugin() override
@@ -202,13 +198,13 @@ public:
         {
             const ScopedContext sc(this);
             /*
-            delete fContext->scene;
-            fContext->scene = nullptr;
+            delete context->scene;
+            context->scene = nullptr;
 
-            delete fContext->event;
-            fContext->event = nullptr;
+            delete context->event;
+            context->event = nullptr;
             */
-            delete fContext;
+            delete context;
         }
 
         if (! fAutosavePath.empty())
@@ -217,7 +213,7 @@ public:
 
     CardinalPluginContext* getRackContext() const noexcept
     {
-        return fContext;
+        return context;
     }
 
 protected:
@@ -365,14 +361,34 @@ protected:
    /* --------------------------------------------------------------------------------------------------------
     * Internal data */
 
-    float getParameterValue(const uint32_t index) const override
+    float getParameterValue(uint32_t index) const override
     {
-        return fParameters[index];
+        if (index < kModuleParameters)
+            return context->parameters[index];
+
+        index -= kModuleParameters;
+
+        if (index < kWindowParameterCount)
+            return fWindowParameters[index];
+
+        return 0.0f;
     }
 
-    void setParameterValue(const uint32_t index, float value) override
+    void setParameterValue(uint32_t index, float value) override
     {
-        fParameters[index] = value;
+        if (index < kModuleParameters)
+        {
+            context->parameters[index] = value;
+            return;
+        }
+
+        index -= kModuleParameters;
+
+        if (index < kWindowParameterCount)
+        {
+            fWindowParameters[index] = value;
+            return;
+        }
     }
 
     String getState(const char* const key) const override
@@ -387,9 +403,9 @@ protected:
         {
             const ScopedContext sc(this);
 
-            fContext->engine->prepareSave();
-            fContext->patch->saveAutosave();
-            fContext->patch->cleanAutosave();
+            context->engine->prepareSave();
+            context->patch->saveAutosave();
+            context->patch->cleanAutosave();
 
             data = rack::system::archiveDirectory(fAutosavePath, 1);
         }
@@ -412,7 +428,7 @@ protected:
         rack::system::createDirectories(fAutosavePath);
         rack::system::unarchiveToDirectory(data, fAutosavePath);
 
-        fContext->patch->loadAutosave();
+        context->patch->loadAutosave();
     }
 
    /* --------------------------------------------------------------------------------------------------------
@@ -450,8 +466,8 @@ protected:
     void run(const float** const inputs, float** const outputs, const uint32_t frames) override
     {
         /*
-        fContext->engine->setFrame(getTimePosition().frame);
-        fContext->engine->stepBlock(frames);
+        context->engine->setFrame(getTimePosition().frame);
+        context->engine->stepBlock(frames);
         */
 
         const MutexLocker cml(fDeviceMutex);
@@ -482,13 +498,6 @@ protected:
         }
     }
 
-    /*
-    void sampleRateChanged(const double newSampleRate) override
-    {
-        fContext->engine->setSampleRate(newSampleRate);
-    }
-    */
-
     // -------------------------------------------------------------------------------------------------------
 
 private:

src/CardinalUI.cpp

@@ -63,7 +63,7 @@ class CardinalUI : public UI,
 
         ScopedContext(CardinalUI* const ui)
             : context(ui->fContext),
-              cml(context->plugin->contextMutex)
+              cml(context->mutex)
         {
             rack::contextSet(context);
             WindowParametersRestore(context->window);
@@ -71,7 +71,7 @@ class CardinalUI : public UI,
 
         ScopedContext(CardinalUI* const ui, const int mods)
             : context(ui->fContext),
-              cml(context->plugin->contextMutex)
+              cml(context->mutex)
         {
             rack::contextSet(context);
             rack::window::WindowMods(context->window, mods);

src/PluginContext.hpp

@@ -33,27 +33,51 @@ START_NAMESPACE_DISTRHO
 
 static constexpr const uint kModuleParameters = 24;
 
+// -----------------------------------------------------------------------------------------------------------
+
+struct CardinalPluginContext : rack::Context {
+    uint32_t bufferSize;
+    double sampleRate;
+    float parameters[kModuleParameters];
+
+    Mutex mutex;
+    Plugin* const plugin;
+
+    CardinalPluginContext(Plugin* const p)
+        : bufferSize(p->getBufferSize()),
+          sampleRate(p->getSampleRate()),
+          plugin(p)
+    {
+        std::memset(parameters, 0, sizeof(parameters));
+    }
+};
+
+// -----------------------------------------------------------------------------------------------------------
+
 class CardinalBasePlugin : public Plugin {
 public:
+    CardinalPluginContext* const context;
+
     CardinalBasePlugin(uint32_t parameterCount, uint32_t programCount, uint32_t stateCount)
-        : Plugin(parameterCount, programCount, stateCount) {}
+        : Plugin(parameterCount, programCount, stateCount),
+          context(new CardinalPluginContext(this)) {}
     ~CardinalBasePlugin() override {}
     virtual bool isActive() const noexcept = 0;
     virtual bool canAssignDevice() const noexcept = 0;
     virtual void assignDevice(rack::audio::Device* dev) noexcept = 0;
     virtual bool clearDevice(rack::audio::Device* dev) noexcept = 0;
 
-    // ensure context validity through UI and setState
-    Mutex contextMutex;
-};
-
-// -----------------------------------------------------------------------------------------------------------
-
-struct CardinalPluginContext : rack::Context {
-    CardinalBasePlugin* const plugin;
+protected:
+    void bufferSizeChanged(const uint32_t newBufferSize) override
+    {
+        context->bufferSize = newBufferSize;
+    }
 
-    CardinalPluginContext(CardinalBasePlugin* const p)
-        : plugin(p) {}
+    void sampleRateChanged(const double newSampleRate) override
+    {
+        context->sampleRate = newSampleRate;
+        // context->engine->setSampleRate(newSampleRate);
+    }
 };
 
 // -----------------------------------------------------------------------------------------------------------
@@ -144,7 +168,7 @@ struct CardinalAudioDriver : rack::audio::Driver {
         CardinalPluginContext* const pluginContext = reinterpret_cast<CardinalPluginContext*>(port->context);
         DISTRHO_SAFE_ASSERT_RETURN(pluginContext != nullptr, nullptr);
 
-        CardinalBasePlugin* const plugin = pluginContext->plugin;
+        CardinalBasePlugin* const plugin = reinterpret_cast<CardinalBasePlugin*>(pluginContext->plugin);
         DISTRHO_SAFE_ASSERT_RETURN(plugin != nullptr, nullptr);
 
         if (! plugin->canAssignDevice())
@@ -168,7 +192,7 @@ struct CardinalAudioDriver : rack::audio::Driver {
         CardinalPluginContext* const pluginContext = reinterpret_cast<CardinalPluginContext*>(port->context);
         DISTRHO_SAFE_ASSERT_RETURN(pluginContext != nullptr,);
 
-        CardinalBasePlugin* const plugin = pluginContext->plugin;
+        CardinalBasePlugin* const plugin = reinterpret_cast<CardinalBasePlugin*>(pluginContext->plugin);
         DISTRHO_SAFE_ASSERT_RETURN(plugin != nullptr,);
 
         if (plugin->clearDevice(device))

src/template.vcv

@@ -1,5 +1,11 @@
 {
   "version": "2.0",
+  "unsaved": true,
+  "zoom": 1.0,
+  "gridOffset": [
+    -3.5333333015441895,
+    -0.078947365283966064
+  ],
   "modules": [
     {
       "id": 1,
@@ -12,10 +18,11 @@
           "id": 0
         }
       ],
+      "rightModuleId": 4245168092954973,
       "data": {
         "audio": {
           "driver": 0,
-          "deviceName": "Plugin Device",
+          "deviceName": "Cardinal",
           "sampleRate": 48000.0,
           "blockSize": 512,
           "inputOffset": 0,
@@ -27,8 +34,20 @@
         0,
         0
       ]
+    },
+    {
+      "id": 4245168092954973,
+      "plugin": "Cardinal",
+      "model": "HostParameters",
+      "version": "2.0",
+      "params": [],
+      "leftModuleId": 1,
+      "pos": [
+        5,
+        0
+      ]
     }
   ],
   "cables": [],
   "masterModuleId": 1
-}
+}