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#pragma once
#include "Interface.h"
#include "HashTable.h"
#include <assert.h>
namespace vst {
class PluginDesc final {
public:
static const uint32_t NoParamID = 0xffffffff;
using ptr = std::shared_ptr<PluginDesc>;
using const_ptr = std::shared_ptr<const PluginDesc>;
PluginDesc(std::shared_ptr<const IFactory> f);
~PluginDesc();
PluginDesc(const PluginDesc&) = delete;
void operator =(const PluginDesc&) = delete;
void setFactory(std::shared_ptr<const IFactory> factory);
const std::string& path() const { return path_; }
CpuArch arch() const;
// create new instances
// throws an Error exception on failure!
IPlugin::ptr create(bool editor, bool threaded, RunMode mode = RunMode::Auto) const;
// read/write plugin description
void serialize(std::ostream& file) const;
void deserialize(std::istream& file, int versionMajor = VERSION_MAJOR,
int versionMinor = VERSION_MINOR, int versionPatch = VERSION_PATCH);
#if USE_VST2
void setUniqueID(int _id); // VST2
int getUniqueID() const {
return id_.id;
}
#endif
#if USE_VST3
void setUID(const char *uid); // VST3
const char* getUID() const {
return id_.uid;
}
#endif
struct SubPlugin {
std::string name;
int id;
};
using SubPluginList = std::vector<SubPlugin>;
SubPluginList subPlugins;
PluginType type() const { return type_; }
std::string key() const {
if (type_ == PluginType::VST3){
// VST3: plug-in name + ".vst3"
return name + ".vst3";
} else {
// VST2: plug-in name
return name;
}
}
// info data
std::string uniqueID;
std::string name;
std::string vendor;
std::string category;
std::string version;
std::string sdkVersion;
struct Bus {
enum Type {
Main = 0,
Aux
};
int numChannels = 0;
Type type = Main;
std::string label;
};
std::vector<Bus> inputs;
int numInputs() const {
return inputs.size();
}
std::vector<Bus> outputs;
int numOutputs() const {
return outputs.size();
}
#if USE_VST3
uint32_t programChange = NoParamID; // no param
uint32_t bypass = NoParamID; // no param
#endif
// parameters
struct Param {
std::string name;
std::string label;
uint32_t id = 0;
bool automatable = true;
};
std::vector<Param> parameters;
void addParameter(Param param);
void addParamAlias(int index, std::string_view key);
// returns -1 if the parameter is not found
int findParam(std::string_view key) const {
return paramMap_.findOr(key, -1);
}
int numParameters() const {
return parameters.size();
}
#if USE_VST3
// get VST3 parameter ID from index
uint32_t getParamID(int index) const {
auto result = indexToIdMap_.find(index);
assert(result); // throw?
return *result;
}
// get index from VST3 parameter ID
// returns -1 if the parameter is not found (not automatable)
int getParamIndex(uint32_t id) const {
return idToIndexMap_.findOr(id, -1);
}
#endif
// presets
void scanPresets();
int numPresets() const { return presets.size(); }
int findPreset(std::string_view name) const;
Preset makePreset(std::string_view name, PresetType type = PresetType::User) const;
int addPreset(Preset preset);
bool removePreset(int index, bool del = true);
bool renamePreset(int index, std::string_view newName);
std::string getPresetFolder(PresetType type, bool create = false) const;
PresetList presets;
// default programs
std::vector<std::string> programs;
int numPrograms() const {
return programs.size();
}
// flags
enum Flags {
HasEditor = 1 << 0,
IsSynth = 1 << 1,
SinglePrecision = 1 << 2,
DoublePrecision = 1 << 3,
MidiInput = 1 << 4,
MidiOutput = 1 << 5,
SysexInput = 1 << 6,
SysexOutput = 1 << 7,
Bridged = 1 << 8,
EditorResizable = 1 << 9
};
bool editor() const {
return flags & HasEditor;
}
bool editorResizable() const {
return flags & EditorResizable;
}
bool synth() const {
return flags & IsSynth;
}
bool singlePrecision() const {
return flags & SinglePrecision;
}
bool doublePrecision() const {
return flags & DoublePrecision;
}
bool hasPrecision(ProcessPrecision precision) const {
if (precision == ProcessPrecision::Double) {
return doublePrecision();
}
else {
return singlePrecision();
}
}
bool midiInput() const {
return flags & MidiInput;
}
bool midiOutput() const {
return flags & MidiOutput;
}
bool sysexInput() const {
return flags & SysexInput;
}
bool sysexOutput() const {
return flags & SysexOutput;
}
bool bridged() const {
return flags & Bridged;
}
uint32_t flags = 0;
#if WARN_VST3_PARAMETERS
bool warnParameters = false;
#endif
private:
std::weak_ptr<const IFactory> factory_;
std::string path_;
// param name -> param index mapping
HashTable<std::string, int, std::string_view> paramMap_;
#if USE_VST3
// param index to ID (VST3 only)
HashTable<int, uint32_t> indexToIdMap_;
// param ID to index (VST3 only)
HashTable<uint32_t, int> idToIndexMap_;
#endif
PluginType type_;
union ID {
char uid[16];
int32_t id;
};
ID id_;
// helper methods
void sortPresets(bool userOnly = true);
mutable bool didCreatePresetFolder = false;
};
} // vst
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