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/*
* Copyright (C) 2021 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2021 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-plugin-fw
* Created on: 20 нояб. 2021 г.
*
* lsp-plugin-fw is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-plugin-fw is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-plugin-fw. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_PLUG_FW_WRAP_LV2_WRAPPER_H_
#define LSP_PLUG_IN_PLUG_FW_WRAP_LV2_WRAPPER_H_
#include <lsp-plug.in/plug-fw/version.h>
#include <lsp-plug.in/ipc/NativeExecutor.h>
#include <lsp-plug.in/lltl/parray.h>
#include <lsp-plug.in/plug-fw/plug.h>
#include <lsp-plug.in/plug-fw/core/KVTDispatcher.h>
#include <lsp-plug.in/plug-fw/core/KVTStorage.h>
#include <lsp-plug.in/plug-fw/core/SamplePlayer.h>
#include <lsp-plug.in/plug-fw/wrap/lv2/executor.h>
#include <lsp-plug.in/plug-fw/wrap/lv2/extensions.h>
#include <lsp-plug.in/plug-fw/wrap/lv2/ports.h>
#include <lsp-plug.in/plug-fw/wrap/lv2/sink.h>
namespace lsp
{
namespace lv2
{
/**
* LV2 format plugin wrapper
*/
class Wrapper: public plug::IWrapper
{
public:
enum state_mode_t
{
SM_SYNC, // State is in sync with host
SM_CHANGED, // State has been changed
SM_REPORTED, // State change has been reported to the host
SM_LOADING // State has been loaded but still not committed
};
enum kvt_parse_flags_t
{
KP_KEY = 1 << 0, // KVT key has been deserialized
KP_VALUE = 1 << 1, // KVT value has been deserialized
KP_FLAGS = 1 << 2 // KVT flags have been deserialized
};
private:
class LV2KVTListener: public core::KVTListener
{
private:
lv2::Wrapper *pWrapper;
public:
explicit LV2KVTListener(lv2::Wrapper *wrapper) { pWrapper = wrapper; }
public:
virtual void created(core::KVTStorage *storage, const char *id, const core::kvt_param_t *param, size_t pending);
virtual void changed(core::KVTStorage *storage, const char *id, const core::kvt_param_t *oval, const core::kvt_param_t *nval, size_t pending);
virtual void removed(core::KVTStorage *storage, const char *id, const core::kvt_param_t *param, size_t pending);
};
protected:
lltl::parray<lv2::Port> vExtPorts;
lltl::parray<lv2::Port> vAllPorts; // List of all created ports, for garbage collection
lltl::parray<lv2::Port> vPluginPorts; // All plugin ports sorted in urid order
lltl::parray<lv2::Port> vMeshPorts;
lltl::parray<lv2::Port> vFrameBufferPorts;
lltl::parray<lv2::Port> vStreamPorts;
lltl::parray<lv2::Port> vMidiPorts;
lltl::parray<lv2::Port> vOscPorts;
lltl::parray<lv2::AudioPort> vAudioPorts;
lltl::parray<meta::port_t> vGenMetadata; // Generated metadata
lv2::Extensions *pExt;
ipc::IExecutor *pExecutor; // Executor service
void *pAtomIn; // Atom input port
void *pAtomOut; // Atom output port
float *pLatency; // Latency output port
size_t nPatchReqs; // Number of patch requests
size_t nStateReqs; // Number of state requests
ssize_t nSyncTime; // Synchronization time
ssize_t nSyncSamples; // Synchronization counter
ssize_t nClients; // Number of clients
ssize_t nDirectClients; // Number of direct clients
bool bQueueDraw; // Queue draw request
bool bUpdateSettings;// Settings update
float fSampleRate;
uint8_t *pOscPacket; // OSC packet data
volatile uatomic_t nStateMode; // State change flag
volatile uatomic_t nDumpReq;
uatomic_t nDumpResp;
meta::package_t *pPackage;
core::KVTStorage sKVT;
LV2KVTListener sKVTListener;
ipc::Mutex sKVTMutex;
core::KVTDispatcher *pKVTDispatcher;
core::SamplePlayer *pSamplePlayer; // Sample player
wssize_t nPlayPosition; // Sample playback position
wssize_t nPlayLength; // Sample playback length
LV2_Inline_Display_Image_Surface sSurface; // Canvas surface
protected:
lv2::Port *create_port(lltl::parray<plug::IPort> *plugin_ports, const meta::port_t *meta, const char *postfix, bool virt);
void clear_midi_ports();
void save_kvt_parameters();
void restore_kvt_parameters();
void parse_kvt_v1(const LV2_Atom_Object_Body *data, size_t size);
void parse_kvt_v2(const LV2_Atom *data, size_t size);
bool parse_kvt_key(char const **key, const LV2_Atom *value);
bool parse_kvt_flags(size_t *flags, const LV2_Atom *value);
bool parse_kvt_value(core::kvt_param_t *param, const LV2_Atom *value);
void transmit_port_data_to_clients(bool sync_req, bool patch_req, bool state_req);
void transmit_time_position_to_clients();
void transmit_play_position_to_clients();
void transmit_midi_events(lv2::Port *p);
void transmit_osc_events(lv2::Port *p);
void transmit_kvt_events();
void transmit_atoms(size_t samples);
void receive_midi_event(const LV2_Atom_Event *ev);
void receive_raw_osc_event(osc::parse_frame_t *frame);
void receive_atom_object(const LV2_Atom_Event *ev);
void receive_atoms(size_t samples);
static ssize_t compare_ports_by_urid(const lv2::Port *a, const lv2::Port *b);
public:
explicit Wrapper(plug::Module *plugin, resource::ILoader *loader, lv2::Extensions *ext);
virtual ~Wrapper() override;
status_t init(float srate);
void destroy();
public:
inline void activate() { pPlugin->activate(); }
inline void deactivate() { pPlugin->deactivate(); }
inline void connect(size_t id, void *data);
inline void run(size_t samples);
bool change_state_atomic(state_mode_t from, state_mode_t to);
// State part
inline void save_state(
LV2_State_Store_Function store,
LV2_State_Handle handle,
uint32_t flags,
const LV2_Feature *const * features
);
inline void restore_state(
LV2_State_Retrieve_Function retrieve,
LV2_State_Handle handle,
uint32_t flags,
const LV2_Feature *const * features
);
// Job part
inline void job_run(
LV2_Worker_Respond_Handle handle,
LV2_Worker_Respond_Function respond,
uint32_t size,
const void* data
);
inline void job_response(size_t size, const void *body) {}
inline void job_end() {}
// Inline display part
LV2_Inline_Display_Image_Surface *render_inline_display(size_t width, size_t height);
lv2::Port *port(const char *id);
lv2::Port *port_by_urid(LV2_URID urid);
void connect_direct_ui();
void disconnect_direct_ui();
inline float get_sample_rate() const { return fSampleRate; }
inline core::KVTDispatcher *kvt_dispatcher() { return pKVTDispatcher; }
public:
virtual ipc::IExecutor *executor() override;
virtual core::KVTStorage *kvt_lock() override;
virtual core::KVTStorage *kvt_trylock() override;
virtual bool kvt_release() override;
virtual void state_changed() override;
virtual const meta::package_t *package() const override;
virtual void query_display_draw() override;
};
} /* namespace lv2 */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_PLUG_FW_WRAP_LV2_WRAPPER_H_ */
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