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Diffstat (limited to 'examples/Info/InfoExamplePlugin.cpp')
| -rw-r--r-- | examples/Info/InfoExamplePlugin.cpp | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/examples/Info/InfoExamplePlugin.cpp b/examples/Info/InfoExamplePlugin.cpp new file mode 100644 index 00000000..f9a508b5 --- /dev/null +++ b/examples/Info/InfoExamplePlugin.cpp @@ -0,0 +1,288 @@ +/*
+ * DISTRHO Plugin Framework (DPF)
+ * Copyright (C) 2012-2015 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "DistrhoPlugin.hpp"
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------------------------------------------
+
+/**
+ Plugin to show how to get some basic information sent to the UI.
+ */
+class InfoExamplePlugin : public Plugin
+{
+public:
+ InfoExamplePlugin()
+ : Plugin(kParameterCount, 0, 0)
+ {
+ // clear all parameters
+ std::memset(fParameters, 0, sizeof(float)*kParameterCount);
+
+ // we can know buffer-size right at the start
+ fParameters[kParameterBufferSize] = getBufferSize();
+ }
+
+protected:
+ /* --------------------------------------------------------------------------------------------------------
+ * Information */
+
+ /**
+ Get the plugin label.
+ This label is a short restricted name consisting of only _, a-z, A-Z and 0-9 characters.
+ */
+ const char* getLabel() const override
+ {
+ return "Info";
+ }
+
+ /**
+ Get an extensive comment/description about the plugin.
+ */
+ const char* getDescription() const override
+ {
+ return "Plugin to show how to get some basic information sent to the UI.";
+ }
+
+ /**
+ Get the plugin author/maker.
+ */
+ const char* getMaker() const override
+ {
+ return "DISTRHO";
+ }
+
+ /**
+ Get the plugin homepage.
+ */
+ const char* getHomePage() const override
+ {
+ return "https://github.com/DISTRHO/plugin-examples";
+ }
+
+ /**
+ Get the plugin license name (a single line of text).
+ For commercial plugins this should return some short copyright information.
+ */
+ const char* getLicense() const override
+ {
+ return "ISC";
+ }
+
+ /**
+ Get the plugin version, in hexadecimal.
+ */
+ uint32_t getVersion() const override
+ {
+ return d_version(1, 0, 0);
+ }
+
+ /**
+ Get the plugin unique Id.
+ This value is used by LADSPA, DSSI and VST plugin formats.
+ */
+ int64_t getUniqueId() const override
+ {
+ return d_cconst('d', 'N', 'f', 'o');
+ }
+
+ /* --------------------------------------------------------------------------------------------------------
+ * Init */
+
+ /**
+ Initialize the parameter @a index.
+ This function will be called once, shortly after the plugin is created.
+ */
+ void initParameter(uint32_t index, Parameter& parameter) override
+ {
+ parameter.hints = kParameterIsAutomable|kParameterIsOutput;
+ parameter.ranges.def = 0.0f;
+ parameter.ranges.min = 0.0f;
+ parameter.ranges.max = 16777216.0f;
+
+ switch (index)
+ {
+ case kParameterBufferSize:
+ parameter.name = "BufferSize";
+ parameter.symbol = "buffer_size";
+ break;
+ case kParameterTimePlaying:
+ parameter.hints |= kParameterIsBoolean;
+ parameter.name = "TimePlaying";
+ parameter.symbol = "time_playing";
+ parameter.ranges.min = 0.0f;
+ parameter.ranges.max = 1.0f;
+ break;
+ case kParameterTimeFrame:
+ parameter.name = "TimeFrame";
+ parameter.symbol = "time_frame";
+ break;
+ case kParameterTimeValidBBT:
+ parameter.hints |= kParameterIsBoolean;
+ parameter.name = "TimeValidBBT";
+ parameter.symbol = "time_validbbt";
+ parameter.ranges.min = 0.0f;
+ parameter.ranges.max = 1.0f;
+ break;
+ case kParameterTimeBar:
+ parameter.name = "TimeBar";
+ parameter.symbol = "time_bar";
+ break;
+ case kParameterTimeBeat:
+ parameter.name = "TimeBeat";
+ parameter.symbol = "time_beat";
+ break;
+ case kParameterTimeTick:
+ parameter.name = "TimeTick";
+ parameter.symbol = "time_tick";
+ break;
+ case kParameterTimeBarStartTick:
+ parameter.name = "TimeBarStartTick";
+ parameter.symbol = "time_barstarttick";
+ break;
+ case kParameterTimeBeatsPerBar:
+ parameter.name = "TimeBeatsPerBar";
+ parameter.symbol = "time_beatsperbar";
+ break;
+ case kParameterTimeBeatType:
+ parameter.name = "TimeBeatType";
+ parameter.symbol = "time_beattype";
+ break;
+ case kParameterTimeTicksPerBeat:
+ parameter.name = "TimeTicksPerBeat";
+ parameter.symbol = "time_ticksperbeat";
+ break;
+ case kParameterTimeBeatsPerMinute:
+ parameter.name = "TimeBeatsPerMinute";
+ parameter.symbol = "time_beatsperminute";
+ break;
+ }
+ }
+
+ /* --------------------------------------------------------------------------------------------------------
+ * Internal data */
+
+ /**
+ Get the current value of a parameter.
+ The host may call this function from any context, including realtime processing.
+ */
+ float getParameterValue(uint32_t index) const override
+ {
+ return fParameters[index];
+
+ }
+
+ /**
+ Change a parameter value.
+ The host may call this function from any context, including realtime processing.
+ When a parameter is marked as automable, you must ensure no non-realtime operations are performed.
+ @note This function will only be called for parameter inputs.
+ */
+ void setParameterValue(uint32_t, float) override
+ {
+ // this is only called for input paramters, which we have none of.
+ }
+
+ /* --------------------------------------------------------------------------------------------------------
+ * Audio/MIDI Processing */
+
+ /**
+ Run/process function for plugins without MIDI input.
+ @note Some parameters might be null if there are no audio inputs or outputs.
+ */
+ void run(const float** inputs, float** outputs, uint32_t frames) override
+ {
+ /**
+ This plugin does nothing, it just demonstrates information usage.
+ So here we directly copy inputs over outputs, leaving the audio untouched.
+ We need to be careful in case the host re-uses the same buffer for both ins and outs.
+ */
+ if (outputs[0] != inputs[0])
+ std::memcpy(outputs[0], inputs[0], sizeof(float)*frames);
+
+ if (outputs[1] != inputs[1])
+ std::memcpy(outputs[1], inputs[1], sizeof(float)*frames);
+
+ // get time position
+ const TimePosition& timePos(getTimePosition());
+
+ // set basic values
+ fParameters[kParameterTimePlaying] = timePos.playing ? 1.0f : 0.0f;
+ fParameters[kParameterTimeFrame] = timePos.frame;
+ fParameters[kParameterTimeValidBBT] = timePos.bbt.valid ? 1.0f : 0.0f;
+
+ // set bbt
+ if (timePos.bbt.valid)
+ {
+ fParameters[kParameterTimeBar] = timePos.bbt.bar;
+ fParameters[kParameterTimeBeat] = timePos.bbt.beat;
+ fParameters[kParameterTimeTick] = timePos.bbt.tick;
+ fParameters[kParameterTimeBarStartTick] = timePos.bbt.barStartTick;
+ fParameters[kParameterTimeBeatsPerBar] = timePos.bbt.beatsPerBar;
+ fParameters[kParameterTimeBeatType] = timePos.bbt.beatType;
+ fParameters[kParameterTimeTicksPerBeat] = timePos.bbt.ticksPerBeat;
+ fParameters[kParameterTimeBeatsPerMinute] = timePos.bbt.beatsPerMinute;
+ }
+ else
+ {
+ fParameters[kParameterTimeBar] = 0.0f;
+ fParameters[kParameterTimeBeat] = 0.0f;
+ fParameters[kParameterTimeTick] = 0.0f;
+ fParameters[kParameterTimeBarStartTick] = 0.0f;
+ fParameters[kParameterTimeBeatsPerBar] = 0.0f;
+ fParameters[kParameterTimeBeatType] = 0.0f;
+ fParameters[kParameterTimeTicksPerBeat] = 0.0f;
+ fParameters[kParameterTimeBeatsPerMinute] = 0.0f;
+ }
+ }
+
+ /* --------------------------------------------------------------------------------------------------------
+ * Callbacks (optional) */
+
+ /**
+ Optional callback to inform the plugin about a buffer size change.@
+ This function will only be called when the plugin is deactivated.
+ @note This value is only a hint!
+ Hosts might call run() with a higher or lower number of frames.
+ */
+ void bufferSizeChanged(uint32_t newBufferSize) override
+ {
+ fParameters[kParameterBufferSize] = newBufferSize;
+ }
+
+ // -------------------------------------------------------------------------------------------------------
+
+private:
+ // Parameters
+ float fParameters[kParameterCount];
+
+ /**
+ Set our plugin class as non-copyable and add a leak detector just in case.
+ */
+ DISTRHO_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(InfoExamplePlugin)
+};
+
+/* ------------------------------------------------------------------------------------------------------------
+ * Plugin entry point, called by DPF to create a new plugin instance. */
+
+Plugin* createPlugin()
+{
+ return new InfoExamplePlugin();
+}
+
+// -----------------------------------------------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO
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