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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: 12 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_EXTENSIONS_H_
#define LSP_PLUG_IN_PLUG_FW_WRAP_LV2_EXTENSIONS_H_
#include <lsp-plug.in/common/alloc.h>
#include <lsp-plug.in/common/debug.h>
#include <lsp-plug.in/plug-fw/meta/types.h>
#include <lsp-plug.in/plug-fw/meta/func.h>
#include <lsp-plug.in/plug-fw/plug.h>
#include <lsp-plug.in/plug-fw/version.h>
#include <lsp-plug.in/plug-fw/wrap/lv2/lv2.h>
#include <lsp-plug.in/plug-fw/wrap/lv2/types.h>
#include <lsp-plug.in/stdlib/stdio.h>
#include <lsp-plug.in/stdlib/stdlib.h>
#include <lsp-plug.in/stdlib/string.h>
#pragma pack(push, 1)
typedef struct LV2_Atom_Midi
{
LV2_Atom atom;
uint8_t body[8];
} LV2_Atom_Midi;
#pragma pack(pop)
#define LV2PORT_MAX_BLOCK_LENGTH 8192
namespace lsp
{
namespace lv2
{
struct Extensions;
class Wrapper;
/**
* Serializable object
*/
class Serializable
{
protected:
lv2::Extensions *pExt;
LV2_URID urid;
public:
explicit Serializable(Extensions *ext)
{
pExt = ext;
urid = 0;
}
virtual ~Serializable()
{
}
public:
virtual void serialize() {};
virtual void deserialize(const void *data) {};
public:
inline LV2_URID get_urid() const { return urid; };
};
/**
* Set of bindings to LV2 extension interfaces.
*/
struct Extensions
{
public:
LV2_Atom_Forge forge;
// Extension interfaces
LV2_URID_Map *map;
LV2_URID_Unmap *unmap;
LV2_Worker_Schedule *sched;
LV2_Inline_Display *iDisplay;
LV2_State_Map_Path *mapPath;
LV2UI_Resize *ui_resize;
lv2::Wrapper *pWrapper;
LV2UI_Controller ctl;
LV2UI_Write_Function wf;
ssize_t nAtomIn; // Atom input port identifier
ssize_t nAtomOut; // Atom output port identifier
size_t nMaxBlockLength; // Maximum size of audio block passed to plugin
float fUIScaleFactor; // UI scale factor
uint8_t *pBuffer; // Atom serialization buffer
size_t nBufSize; // Atom serialization buffer size
float fUIRefreshRate; // UI refresh rate
void *pParentWindow; // Parent window handle
// State interface
LV2_State_Store_Function hStore;
LV2_State_Retrieve_Function hRetrieve;
LV2_State_Handle hHandle;
// Plugin URI and URID
const char *uriPlugin;
const char *uriTypes;
const char *uriKvt;
LV2_URID uridPlugin;
// Miscellaneous URIDs
LV2_URID uridAtomTransfer;
LV2_URID uridEventTransfer;
LV2_URID uridObject;
LV2_URID uridBlank;
LV2_URID uridStateChanged;
LV2_URID uridUINotification;
LV2_URID uridConnectUI;
LV2_URID uridDisconnectUI;
LV2_URID uridPlaySample;
LV2_URID uridPlayPositionUpdate;
LV2_URID uridDumpState;
LV2_URID uridPathType;
LV2_URID uridMidiEventType;
LV2_URID uridKvtKeys;
LV2_URID uridKvtObject;
LV2_URID uridKvtType;
LV2_URID uridKvtEntryType;
LV2_URID uridKvtEntryKey;
LV2_URID uridKvtEntryValue;
LV2_URID uridKvtEntryFlags;
LV2_URID uridKvtPropertyType;
LV2_URID uridKvtPropertyValue;
LV2_URID uridKvtPropertyFlags;
LV2_URID uridBlobType;
LV2_URID uridContentType;
LV2_URID uridContent;
LV2_URID uridTypeUInt;
LV2_URID uridTypeULong;
LV2_URID uridPatchGet;
LV2_URID uridPatchSet;
LV2_URID uridPatchMessage;
LV2_URID uridPatchProperty;
LV2_URID uridPatchValue;
LV2_URID uridAtomUrid;
LV2_URID uridChunk;
LV2_URID uridUpdateRate;
LV2_URID uridTimePosition;
LV2_URID uridTimeFrame;
LV2_URID uridTimeFrameRate;
LV2_URID uridTimeSpeed;
LV2_URID uridTimeBarBeat;
LV2_URID uridTimeBar;
LV2_URID uridTimeBeatUnit;
LV2_URID uridTimeBeatsPerBar;
LV2_URID uridTimeBeatsPerMinute;
LV2_URID uridMaxBlockLength;
LV2_URID uridScaleFactor;
// OSC-related URIDs
LV2_URID uridOscBundle;
LV2_URID uridOscBundleTimetag;
LV2_URID uridOscBundleItems;
LV2_URID uridOscMessage;
LV2_URID uridOscMessagePath;
LV2_URID uridOscMessageArguments;
LV2_URID uridOscTimetag;
LV2_URID uridOscTimetagIntegral;
LV2_URID uridOscTimetagFraction;
LV2_URID uridOscNil;
LV2_URID uridOscImpulse;
LV2_URID uridOscChar;
LV2_URID uridOscRgba;
LV2_URID uridOscRawPacket;
// LSP-related URIDs
LV2_URID uridMeshType;
LV2_URID uridMeshItems;
LV2_URID uridMeshDimensions;
LV2_URID uridMeshData;
LV2_URID uridFrameBufferType;
LV2_URID uridFrameBufferRows; // Number of rows
LV2_URID uridFrameBufferCols; // Number of cols
LV2_URID uridFrameBufferFirstRowID; // First row identifier
LV2_URID uridFrameBufferLastRowID; // Last row identifier
LV2_URID uridFrameBufferData; // Frame buffer row data
LV2_URID uridStreamType; // Stream data type
LV2_URID uridStreamDimensions; // Stream dimensions
LV2_URID uridStreamFrame; // Stream frame
LV2_URID uridStreamFrameType; // Stream frame type
LV2_URID uridStreamFrameId; // Number of frame
LV2_URID uridStreamFrameSize; // Size of frame
LV2_URID uridStreamFrameData; // Frame data
LV2_URID uridPlayRequestType;
LV2_URID uridPlayRequestFileName;
LV2_URID uridPlayRequestPosition;
LV2_URID uridPlayRequestRelease;
LV2_URID uridPlayPositionType;
LV2_URID uridPlayPositionPosition;
LV2_URID uridPlayPositionLength;
public:
inline Extensions(
const LV2_Feature* const* feat,
const char *plugin_uri,
const char *types_uri,
const char *kvt_uri,
LV2UI_Controller lv2_ctl,
LV2UI_Write_Function lv2_write)
{
map = NULL;
unmap = NULL;
sched = NULL;
iDisplay = NULL;
mapPath = NULL;
ui_resize = NULL;
pWrapper = NULL;
ctl = lv2_ctl;
wf = lv2_write;
nAtomIn = -1;
nAtomOut = -1;
nMaxBlockLength = LV2PORT_MAX_BLOCK_LENGTH;
fUIScaleFactor = 1.0f;
pBuffer = NULL;
nBufSize = 0;
fUIRefreshRate = UI_FRAMES_PER_SECOND;
pParentWindow = NULL;
// State interface
hStore = NULL;
hRetrieve = NULL;
hHandle = NULL;
uriPlugin = plugin_uri;
uriTypes = types_uri;
uriKvt = kvt_uri;
const LV2_Options_Option *opts = NULL;
// Scan features
if (feat != NULL)
{
for (size_t i=0; feat[i]; ++i)
{
const LV2_Feature *f = feat[i];
lsp_trace("Host reported extension uri=%sp", f->URI);
if (!strcmp(f->URI, LV2_URID__map))
map = reinterpret_cast<LV2_URID_Map *>(f->data);
else if (!strcmp(f->URI, LV2_URID__unmap))
unmap = reinterpret_cast<LV2_URID_Unmap *>(f->data);
else if (!strcmp(f->URI, LV2_WORKER__schedule))
sched = reinterpret_cast<LV2_Worker_Schedule *>(f->data);
else if (!strcmp(f->URI, LV2_UI__parent))
pParentWindow = f->data;
else if (!strcmp(f->URI, LV2_UI__resize))
ui_resize = reinterpret_cast<LV2UI_Resize *>(f->data);
else if (!strcmp(f->URI, LV2_INLINEDISPLAY__queue_draw))
iDisplay = reinterpret_cast<LV2_Inline_Display *>(f->data);
#if LSP_LV2_NO_INSTANCE_ACCESS != 1
else if (!strcmp(f->URI, LV2_INSTANCE_ACCESS_URI))
pWrapper = reinterpret_cast<Wrapper *>(f->data);
#endif
else if (!strcmp(f->URI, LV2_OPTIONS__options))
{
lsp_trace("Received options from host");
opts = reinterpret_cast<const LV2_Options_Option *>(f->data);
}
}
lsp_trace("Plugin instance wrapper pointer: %p", pWrapper);
}
// Initialize basic URIDs
uridPlugin = (map != NULL) ? map->map(map->handle, uriPlugin) : -1;
if (map != NULL)
lv2_atom_forge_init(&forge, map);
uridAtomTransfer = map_uri(LV2_ATOM__atomTransfer);
uridEventTransfer = map_uri(LV2_ATOM__eventTransfer);
uridObject = forge.Object;
uridBlank = map_uri(LV2_ATOM__Blank);
uridStateChanged = map_uri(LV2_STATE__StateChanged);
uridUINotification = map_type_legacy("UINotification");
uridConnectUI = map_primitive("ui_connect");
uridDisconnectUI = map_primitive("ui_disconnect");
uridPlaySample = map_primitive("play_sample");
uridPlayPositionUpdate = map_primitive("play_position_update");
uridDumpState = map_primitive("dumpState");
uridPathType = forge.Path;
uridMidiEventType = map_uri(LV2_MIDI__MidiEvent);
uridKvtObject = map_primitive("KVT");
uridKvtType = map_type_legacy("KVT");
uridKvtEntryType = map_type("KVTEntry");
uridKvtEntryKey = map_field("KVTEntry", "key");
uridKvtEntryValue = map_field("KVTEntry", "value");
uridKvtEntryFlags = map_field("KVTEntry", "flags");
uridKvtPropertyType = map_type_legacy("KVTProperty");
uridKvtPropertyValue = map_field("KVTProperty", "value");
uridKvtPropertyFlags = map_field("KVTProperty", "flags");
uridBlobType = map_type_legacy("Blob");
uridContentType = map_field("Blob", "ContentType");
uridContent = map_field("Blob", "Content");
uridTypeUInt = map_uri(LV2_ATOM_PREFIX "UInt" );
uridTypeULong = map_uri(LV2_ATOM_PREFIX "ULong" );
uridPatchGet = map_uri(LV2_PATCH__Get);
uridPatchSet = map_uri(LV2_PATCH__Set);
uridPatchMessage = map_uri(LV2_PATCH__Message);
uridPatchProperty = map_uri(LV2_PATCH__property);
uridPatchValue = map_uri(LV2_PATCH__value);
uridAtomUrid = forge.URID;
uridChunk = forge.Chunk;
uridUpdateRate = map_uri(LV2_UI__updateRate);
uridTimePosition = map_uri(LV2_TIME__Position);
uridTimeFrame = map_uri(LV2_TIME__frame);
uridTimeFrameRate = map_uri(LV2_TIME__framesPerSecond);
uridTimeSpeed = map_uri(LV2_TIME__speed);
uridTimeBarBeat = map_uri(LV2_TIME__barBeat);
uridTimeBar = map_uri(LV2_TIME__bar);
uridTimeBeatUnit = map_uri(LV2_TIME__beatUnit);
uridTimeBeatsPerBar = map_uri(LV2_TIME__beatsPerBar);
uridTimeBeatsPerMinute = map_uri(LV2_TIME__beatsPerMinute);
uridMaxBlockLength = map_uri(LV2_BUF_SIZE__maxBlockLength);
uridScaleFactor = map_uri(LV2_UI__scaleFactor);
// OSC-related URIDs
uridOscBundle = map_uri(LV2_OSC__Bundle);
uridOscBundleTimetag = map_uri(LV2_OSC__bundleTimetag);
uridOscBundleItems = map_uri(LV2_OSC__bundleItems);
uridOscMessage = map_uri(LV2_OSC__Message);
uridOscMessagePath = map_uri(LV2_OSC__messagePath);
uridOscMessageArguments = map_uri(LV2_OSC__messageArguments);
uridOscTimetag = map_uri(LV2_OSC__Timetag);
uridOscTimetagIntegral = map_uri(LV2_OSC__timetagIntegral);
uridOscTimetagFraction = map_uri(LV2_OSC__timetagFraction);
uridOscNil = map_uri(LV2_OSC__Nil);
uridOscImpulse = map_uri(LV2_OSC__Impulse);
uridOscChar = map_uri(LV2_OSC__Char);
uridOscRgba = map_uri(LV2_OSC__RGBA);
uridOscRawPacket = map_uri(LV2_OSC__RawPacket);
// LSP-related URIDs
uridMeshType = map_type_legacy("Mesh");
uridMeshItems = map_field("Mesh", "items");
uridMeshDimensions = map_field("Mesh", "dimensions");
uridMeshData = map_field("Mesh", "data");
uridFrameBufferType = map_type_legacy("FrameBuffer");
uridFrameBufferRows = map_field("FrameBuffer", "rows");
uridFrameBufferCols = map_field("FrameBuffer", "columns");
uridFrameBufferFirstRowID = map_field("FrameBuffer", "firstRowID");
uridFrameBufferLastRowID = map_field("FrameBuffer", "lastRowID");
uridFrameBufferData = map_field("FrameBuffer", "data");
uridStreamType = map_type_legacy("Stream");
uridStreamDimensions = map_field("Stream", "dimensions");
uridStreamFrame = map_field("Stream", "frame");
uridStreamFrameType = map_type_legacy("StreamFrame");
uridStreamFrameId = map_field("StreamFrame", "id");
uridStreamFrameSize = map_field("StreamFrame", "size");
uridStreamFrameData = map_field("StreamFrame", "data");
uridPlayRequestType = map_type("PlayRequest");
uridPlayRequestFileName = map_field("PlayRequest", "fileName");
uridPlayRequestPosition = map_field("PlayRequest", "position");
uridPlayRequestRelease = map_field("PlayRequest", "release");
uridPlayPositionType = map_type("PlayPosition");
uridPlayPositionPosition = map_field("PlayPosition", "position");
uridPlayPositionLength = map_field("PlayPosition", "length");
// Decode passed options if they are present
if (opts != NULL)
{
lsp_trace("Decoding passed options");
while ((opts->key != 0) && (opts->value != 0))
{
lsp_trace("context = %d (%s), subject=%d, key = %d (%s), size = %d, type=%d (%s), value=%p",
int(opts->context),
(opts->context == LV2_OPTIONS_INSTANCE) ? "instance" :
(opts->context == LV2_OPTIONS_RESOURCE) ? "resource" :
(opts->context == LV2_OPTIONS_BLANK) ? "blank" :
(opts->context == LV2_OPTIONS_PORT) ? "port" : "unknown",
int(opts->subject),
int(opts->key), unmap_urid(opts->key),
int(opts->size),
int(opts->type), unmap_urid(opts->type),
opts->value
);
// Update Rate for the UI
if ((opts->context == LV2_OPTIONS_INSTANCE) &&
(opts->key == uridUpdateRate) &&
(opts->value != NULL))
{
if ((opts->type == forge.Float) && (opts->size == sizeof(float)))
fUIRefreshRate = *reinterpret_cast<const float *>(opts->value);
else if ((opts->type == forge.Double) && (opts->size == sizeof(double)))
fUIRefreshRate = *reinterpret_cast<const double *>(opts->value);
else if ((opts->type == forge.Int) && (opts->size == sizeof(int32_t)))
fUIRefreshRate = *reinterpret_cast<const int32_t *>(opts->value);
else if ((opts->type == forge.Long) && (opts->size == sizeof(int64_t)))
fUIRefreshRate = *reinterpret_cast<const int64_t *>(opts->value);
if (fUIRefreshRate < 0)
fUIRefreshRate = UI_FRAMES_PER_SECOND;
lsp_trace("UI refresh rate has been set to %f", fUIRefreshRate);
}
if ((opts->context == LV2_OPTIONS_INSTANCE) && (opts->value != NULL))
{
if (opts->key == uridMaxBlockLength)
{
ssize_t blk_len = read_option_int(opts, uridMaxBlockLength, nMaxBlockLength);
if (blk_len > 0)
nMaxBlockLength = blk_len;
lsp_trace("MaxBlockLength has been set to %d", int(nMaxBlockLength));
}
else if (opts->key == uridScaleFactor)
{
float scale = read_option_float(opts, uridScaleFactor, 1.0f);
if (scale > 0.0f)
fUIScaleFactor = scale;
lsp_trace("UIScaleFactor has been set to %f", fUIScaleFactor);
}
}
if ((opts->context == LV2_OPTIONS_INSTANCE) &&
(opts->key == uridMaxBlockLength) &&
(opts->value != NULL))
{
ssize_t blk_len = nMaxBlockLength;
if ((opts->type == forge.Int) && (opts->size == sizeof(int32_t)))
{
blk_len = *reinterpret_cast<const int32_t *>(opts->value);
lsp_trace("blk_len = %d", int(blk_len));
}
else if ((opts->type == forge.Long) && (opts->size == sizeof(int64_t)))
{
blk_len = *reinterpret_cast<const int64_t *>(opts->value);
lsp_trace("blk_len = %d", int(blk_len));
}
if (blk_len > 0)
nMaxBlockLength = blk_len;
}
opts++;
}
}
}
~Extensions()
{
lsp_trace("destroy");
// Drop atom buffer
if (pBuffer != NULL)
{
delete [] pBuffer;
pBuffer = NULL;
}
}
public:
inline float ui_refresh_rate() const
{
return fUIRefreshRate;
}
inline void *parent_window()
{
return pParentWindow;
}
inline bool atom_supported() const
{
return map != NULL;
}
inline const char *unmap_urid(LV2_URID urid)
{
return (unmap != NULL) ? unmap->unmap(unmap->handle, urid) : NULL;
}
inline lv2::Wrapper *wrapper()
{
return pWrapper;
}
inline ssize_t read_option_int(const LV2_Options_Option *opts, LV2_URID urid, ssize_t dfl)
{
if ((opts->type == forge.Int) && (opts->size == sizeof(int32_t)))
return *static_cast<const int32_t *>(opts->value);
else if ((opts->type == forge.Long) && (opts->size == sizeof(int64_t)))
return *static_cast<const int64_t *>(opts->value);
return dfl;
}
inline float read_option_float(const LV2_Options_Option *opts, LV2_URID urid, float dfl)
{
if ((opts->type == forge.Float) && (opts->size == sizeof(float)))
return *static_cast<const float *>(opts->value);
else if ((opts->type == forge.Double) && (opts->size == sizeof(double)))
return *static_cast<const double *>(opts->value);
return dfl;
}
inline void write_data(
uint32_t port_index,
uint32_t buffer_size,
uint32_t port_protocol,
const void* buffer)
{
if ((ctl == NULL) || (wf == NULL))
{
lsp_error("ctl=%p, wf=%p", ctl, wf);
return;
}
wf(ctl, port_index, buffer_size, port_protocol, buffer);
}
inline LV2_Atom *forge_object(LV2_Atom_Forge_Frame* frame, LV2_URID id, LV2_URID otype)
{
const LV2_Atom_Object a = {
{ sizeof(LV2_Atom_Object_Body), uridObject },
{ id, otype }
};
return reinterpret_cast<LV2_Atom *>(
lv2_atom_forge_push(&forge, frame, lv2_atom_forge_write(&forge, &a, sizeof(a)))
);
}
inline LV2_Atom_Vector *forge_vector(
uint32_t child_size,
uint32_t child_type,
uint32_t n_elems,
const void* elems)
{
return reinterpret_cast<LV2_Atom_Vector *>(
lv2_atom_forge_vector(&forge, child_size, child_type, n_elems, elems)
);
}
inline LV2_Atom_Forge_Ref forge_sequence_head(LV2_Atom_Forge_Frame* frame, uint32_t unit)
{
return lv2_atom_forge_sequence_head(&forge, frame, unit);
}
inline LV2_Atom_Forge_Ref forge_key(LV2_URID key)
{
const uint32_t body[] = { key, 0 };
return lv2_atom_forge_write(&forge, body, sizeof(body));
}
inline LV2_Atom_Forge_Ref forge_urid(LV2_URID urid)
{
const LV2_Atom_URID a = { { sizeof(LV2_URID), forge.URID }, urid };
return lv2_atom_forge_write(&forge, &a, sizeof(LV2_Atom_URID));
}
inline LV2_Atom_Forge_Ref forge_path(const char *str)
{
size_t len = ::strlen(str);
return lv2_atom_forge_typed_string(&forge, forge.Path, str, len);
}
inline LV2_Atom_Forge_Ref forge_string(const char *str)
{
size_t len = ::strlen(str);
return lv2_atom_forge_typed_string(&forge, forge.String, str, len);
}
inline void forge_pop(LV2_Atom_Forge_Frame* frame)
{
lv2_atom_forge_pop(&forge, frame);
}
inline LV2_Atom_Forge_Ref forge_float(float val)
{
const LV2_Atom_Float a = { { sizeof(float), forge.Float }, val };
return lv2_atom_forge_primitive(&forge, &a.atom);
}
inline LV2_Atom_Forge_Ref forge_int(int32_t val)
{
const LV2_Atom_Int a = { { sizeof(int32_t), forge.Int }, val };
return lv2_atom_forge_primitive(&forge, &a.atom);
}
inline LV2_Atom_Forge_Ref forge_long(int64_t val)
{
const LV2_Atom_Long a = { { sizeof(val), forge.Long }, val };
return lv2_atom_forge_primitive(&forge, &a.atom);
}
inline LV2_Atom_Forge_Ref forge_bool(int32_t val)
{
const LV2_Atom_Bool a = {{sizeof(int32_t), forge.Bool}, val ? 1 : 0};
return lv2_atom_forge_primitive(&forge, &a.atom);
}
inline void forge_pad(size_t size)
{
lv2_atom_forge_pad(&forge, size);
}
inline LV2_Atom_Forge_Ref forge_raw(const void* data, size_t size)
{
return lv2_atom_forge_raw(&forge, data, size);
}
inline LV2_Atom_Forge_Ref forge_primitive(const LV2_Atom *atom)
{
return lv2_atom_forge_primitive(&forge, atom);
}
inline void forge_set_buffer(void* buf, size_t size)
{
lv2_atom_forge_set_buffer(&forge, reinterpret_cast<uint8_t *>(buf), size);
}
inline LV2_Atom_Forge_Ref forge_frame_time(int64_t frames)
{
return lv2_atom_forge_write(&forge, &frames, sizeof(frames));
}
inline void resize_ui(ssize_t width, ssize_t height)
{
if (ui_resize != NULL)
ui_resize->ui_resize(ui_resize->handle, width, height);
}
inline LV2_URID map_uri(const char *fmt...) const
{
if (map == NULL)
return -1;
va_list vl;
char tmpbuf[2048];
va_start(vl, fmt);
vsnprintf(tmpbuf, sizeof(tmpbuf), fmt, vl);
va_end(vl);
LV2_URID res = map->map(map->handle, tmpbuf);
lsp_trace("URID for <%s> is %d (0x%x)", tmpbuf, int(res), int(res));
return res;
}
inline LV2_URID map_port(const char *id) const
{
return map_uri("%s/ports#%s", uriPlugin, id);
}
inline LV2_URID map_type_legacy(const char *type) const
{
return map_uri("%s/types#%s", uriTypes, type);
}
inline LV2_URID map_type(const char *type) const
{
return map_uri("%s/%s", uriTypes, type);
}
inline LV2_URID map_field(const char *type, const char *id) const
{
return map_uri("%s/%s#%s", uriTypes, type, id);
}
inline LV2_URID map_kvt(const char *id) const
{
return map_uri("%s/%s", uriKvt, id);
}
inline LV2_URID map_primitive(const char *id) const
{
return map_uri("%s/%s", uriPlugin, id);
}
inline void init_state_context(
LV2_State_Store_Function store,
LV2_State_Retrieve_Function retrieve,
LV2_State_Handle handle,
uint32_t flags,
const LV2_Feature *const * features
)
{
hStore = store;
hRetrieve = retrieve;
hHandle = handle;
for (size_t i=0; features[i]; ++i)
{
const LV2_Feature *f = features[i];
lsp_trace("Host reported state extension uri=%s, data=%p", f->URI, f->data);
if (!::strcmp(f->URI, LV2_STATE__mapPath))
mapPath = reinterpret_cast<LV2_State_Map_Path *>(f->data);
}
}
inline void store_value(LV2_URID urid, LV2_URID type, const void *data, size_t size)
{
if ((hStore == NULL) || (hHandle == NULL))
return;
hStore(hHandle, urid, data, size, type, LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
}
inline const void *retrieve_value(LV2_URID urid, uint32_t *type, size_t *size)
{
if ((hRetrieve == NULL) || (hHandle == NULL))
return NULL;
uint32_t t_flags = 0;
*type = 0;
*size = 0;
lsp_trace("retrieve %d (%s)", urid, unmap_urid(urid));
const void *ptr = hRetrieve(hHandle, urid, size, type, &t_flags);
lsp_trace("retrieved ptr = %p, size=%d, type=%d, flags=0x%x", ptr, int(*size), int(*type), int(t_flags));
return ptr;
}
inline const void *restore_value(LV2_URID urid, LV2_URID type, size_t *size)
{
uint32_t t_type;
size_t t_size;
const void *ptr = retrieve_value(urid, &t_type, &t_size);
if (t_type != type)
return NULL;
lsp_trace("retrieved type = %d (%s)", int(t_type), unmap_urid(t_type));
*size = t_size;
return ptr;
}
inline void reset_state_context()
{
hStore = NULL;
hRetrieve = NULL;
hHandle = NULL;
mapPath = NULL;
}
inline bool ui_create_atom_transport(size_t port, size_t buf_size)
{
// Remember IDs of atom ports
nAtomOut = port++;
nAtomIn = port;
// Allocate buffer
nBufSize = buf_size;
pBuffer = new uint8_t[nBufSize];
if (pBuffer == NULL)
return false;
lsp_trace("Atom rx_id=%d, tx_id=%d, buf_size=%d, buffer=%p", int(nAtomIn), int(nAtomOut), int(nBufSize), pBuffer);
return true;
}
inline bool ui_connect_to_plugin()
{
if (map == NULL)
return false;
if (pWrapper != NULL)
return true;
// Prepare forge for transfer
LV2_Atom_Forge_Frame frame;
forge_set_buffer(pBuffer, nBufSize);
// Send CONNECT UI message
lsp_trace("Sending CONNECT UI message");
LV2_Atom *msg = forge_object(&frame, uridConnectUI, uridUINotification);
forge_pop(&frame);
write_data(nAtomOut, lv2_atom_total_size(msg), uridEventTransfer, msg);
return true;
}
inline bool request_state_dump()
{
if (map == NULL)
return false;
// Prepare forge for transfer
LV2_Atom_Forge_Frame frame;
forge_set_buffer(pBuffer, nBufSize);
// Send DUMP STATE message
lsp_trace("Sending DUMP STATE message");
LV2_Atom *msg = forge_object(&frame, uridDumpState, uridUINotification);
forge_pop(&frame);
write_data(nAtomOut, lv2_atom_total_size(msg), uridEventTransfer, msg);
return true;
}
inline void ui_disconnect_from_plugin()
{
if (map == NULL)
return;
if (pWrapper != NULL)
return;
// Prepare forge for transfer
LV2_Atom_Forge_Frame frame;
forge_set_buffer(pBuffer, nBufSize);
// Send DISCONNECT UI message
lsp_trace("Sending DISCONNECT UI message");
LV2_Atom *msg = forge_object(&frame, uridDisconnectUI, uridUINotification);
forge_pop(&frame);
write_data(nAtomOut, lv2_atom_total_size(msg), uridEventTransfer, msg);
}
bool ui_write_patch(lv2::Serializable *p)
{
if ((map == NULL) || (p->get_urid() <= 0))
return false;
// Forge PATCH SET message
LV2_Atom_Forge_Frame frame;
forge_set_buffer(pBuffer, nBufSize);
forge_frame_time(0);
LV2_Atom *msg = forge_object(&frame, uridChunk, uridPatchSet);
forge_key(uridPatchProperty);
forge_urid(p->get_urid());
forge_key(uridPatchValue);
p->serialize();
forge_pop(&frame);
write_data(nAtomOut, lv2_atom_total_size(msg), uridEventTransfer, msg);
return true;
}
bool ui_play_sample(const char *name, wsize_t position, bool release)
{
if (map == NULL)
return false;
// Forge PATCH SET message
LV2_Atom_Forge_Frame frame;
forge_set_buffer(pBuffer, nBufSize);
forge_frame_time(0);
LV2_Atom *msg = forge_object(&frame, uridPlaySample, uridPlayRequestType);
forge_key(uridPlayRequestFileName);
forge_path(name);
forge_key(uridPlayRequestPosition);
forge_long(position);
forge_key(uridPlayRequestRelease);
forge_bool(release);
forge_pop(&frame);
write_data(nAtomOut, lv2_atom_total_size(msg), uridEventTransfer, msg);
return true;
}
};
#define PATCH_OVERHEAD (sizeof(LV2_Atom_Property) + sizeof(LV2_Atom_URID) + sizeof(LV2_Atom) + 0x20)
inline long lv2_all_port_sizes(const meta::port_t *ports, bool in, bool out)
{
long size = 0;
for (const meta::port_t *p = ports; p->id != NULL; ++p)
{
switch (p->role)
{
case meta::R_CONTROL:
case meta::R_METER:
size += PATCH_OVERHEAD + sizeof(LV2_Atom_Float);
break;
case meta::R_MESH:
if (meta::is_out_port(p) && (!out))
break;
else if (meta::is_in_port(p) && (!in))
break;
size += lv2_mesh_t::size_of_port(p);
break;
case meta::R_STREAM:
{
if (meta::is_out_port(p) && (!out))
break;
else if (meta::is_in_port(p) && (!in))
break;
size_t vector_len = sizeof(LV2_Atom_Vector) + 4 * sizeof(LV2_Atom_Int) + sizeof(float) * STREAM_MAX_FRAME_SIZE;
size_t frm_size = sizeof(LV2_Atom_Object) + 8 * sizeof(LV2_Atom_Int) + size_t(p->min) * vector_len;
size_t data_size = sizeof(LV2_Atom_Object) + 8 * sizeof(LV2_Atom_Int) + STREAM_BULK_MAX * frm_size;
size += data_size;
break;
}
case meta::R_FBUFFER:
if (meta::is_out_port(p) && (!out))
break;
else if (meta::is_in_port(p) && (!in))
break;
size += (4 * sizeof(LV2_Atom_Int) + 0x100) + // Headers
size_t(p->step) * FRAMEBUFFER_BULK_MAX * sizeof(float);
break;
case meta::R_OSC:
size += OSC_BUFFER_MAX;
break;
case meta::R_MIDI:
if (meta::is_out_port(p) && (!out))
break;
else if (meta::is_in_port(p) && (!in))
break;
size += (sizeof(LV2_Atom_Event) + 0x10) * MIDI_EVENTS_MAX; // Size of atom event + pad for MIDI data
break;
case meta::R_PATH: // Both sizes: IN and OUT
size += PATCH_OVERHEAD + PATH_MAX;
break;
case meta::R_PORT_SET:
if ((p->members != NULL) && (p->items != NULL))
{
size_t items = list_size(p->items);
size += items * lv2_all_port_sizes(p->members, in, out); // Add some overhead
size += sizeof(LV2_Atom_Int) + 0x10;
}
break;
default:
break;
}
}
// Update state size
return LSP_LV2_SIZE_PAD(size); // Add some extra bytes for
}
#undef PATCH_OVERHEAD
} /* namespace lv2 */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_PLUG_FW_WRAP_LV2_EXTENSIONS_H_ */
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