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ui_wrapper.h
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ui_wrapper.h
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/*
* Copyright (C) 2023 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2023 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-plugin-fw
* Created on: 24 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_IMPL_UI_WRAPPER_H_
#define LSP_PLUG_IN_PLUG_FW_WRAP_LV2_IMPL_UI_WRAPPER_H_
#include <lsp-plug.in/plug-fw/version.h>
#include <lsp-plug.in/plug-fw/core/osc_buffer.h>
#include <lsp-plug.in/plug-fw/wrap/lv2/ui_wrapper.h>
#include <lsp-plug.in/plug-fw/wrap/lv2/static.h>
namespace lsp
{
namespace lv2
{
//---------------------------------------------------------------------
ssize_t UIWrapper::compare_ports_by_urid(const lv2::UIPort *a, const lv2::UIPort *b)
{
return ssize_t(a->get_urid()) - ssize_t(b->get_urid());
}
ssize_t UIWrapper::compare_abstract_ports_by_urid(const ui::IPort *a, const ui::IPort *b)
{
return compare_ports_by_urid(
static_cast<const lv2::UIPort *>(a),
static_cast<const lv2::UIPort *>(b)
);
}
lv2::UIPort *UIWrapper::find_by_urid(lltl::parray<lv2::UIPort> &v, LV2_URID urid)
{
// Try to find the corresponding port
ssize_t first = 0, last = v.size() - 1;
while (first <= last)
{
size_t center = (first + last) >> 1;
lv2::UIPort *p = v[center];
if (urid == p->get_urid())
return p;
else if (urid < p->get_urid())
last = center - 1;
else
first = center + 1;
}
return NULL;
}
lv2::UIPort *UIWrapper::find_by_urid(lltl::parray<ui::IPort> &v, LV2_URID urid)
{
// Try to find the corresponding port
ssize_t first = 0, last = v.size() - 1;
while (first <= last)
{
size_t center = (first + last) >> 1;
lv2::UIPort *p = static_cast<lv2::UIPort *>(v[center]);
if (urid == p->get_urid())
return p;
else if (urid < p->get_urid())
last = center - 1;
else
first = center + 1;
}
return NULL;
}
//---------------------------------------------------------------------
UIWrapper::UIWrapper(ui::Module *ui, resource::ILoader *loader, lv2::Extensions *ext): ui::IWrapper(ui, loader)
{
pExt = ext;
nLatencyID = 0;
pLatency = NULL;
bConnected = false;
pOscBuffer = NULL;
pPackage = NULL;
nPlayReq = 0;
sPlayFileName = NULL;
nPlayPosition = 0;
bPlayRelease = false;
}
UIWrapper::~UIWrapper()
{
do_destroy();
pUI = NULL;
pExt = NULL;
nLatencyID = 0;
pLatency = NULL;
bConnected = false;
pPackage = NULL;
nPlayReq = 0;
sPlayFileName = NULL;
nPlayPosition = 0;
bPlayRelease = false;
}
void UIWrapper::destroy()
{
do_destroy();
}
void UIWrapper::do_destroy()
{
// Free playback file name if it is set
if (sPlayFileName != NULL)
free(sPlayFileName);
// Disconnect UI
ui_deactivated();
// Drop plugin UI
if (pUI != NULL)
{
pUI->pre_destroy();
pUI->destroy();
delete pUI;
pUI = NULL;
}
// Destroy data
IWrapper::destroy();
// Destroy the display
if (pDisplay != NULL)
{
pDisplay->destroy();
delete pDisplay;
pDisplay = NULL;
}
// Cleanup ports
pLatency = NULL;
// Cleanup generated metadata
for (size_t i=0; i<vGenMetadata.size(); ++i)
{
meta::port_t *p = vGenMetadata.uget(i);
lsp_trace("destroy generated port metadata %p", p);
drop_port_metadata(p);
}
vGenMetadata.flush();
vExtPorts.flush();
vMeshPorts.flush();
vStreamPorts.flush();
vFrameBufferPorts.flush();
// Drop OSC buffer
if (pOscBuffer != NULL)
{
::free(pOscBuffer);
pOscBuffer = NULL;
}
// Drop extensions
if (pExt != NULL)
{
delete pExt;
pExt = NULL;
}
// Destroy manifest
if (pPackage != NULL)
{
meta::free_manifest(pPackage);
pPackage = NULL;
}
// Drop loader
if (pLoader != NULL)
{
delete pLoader;
pLoader = NULL;
}
}
status_t UIWrapper::init(void *root_widget)
{
// Get plugin metadata
const meta::plugin_t *meta = pUI->metadata();
if (meta == NULL)
{
lsp_warn("No plugin metadata found");
return STATUS_BAD_STATE;
}
status_t res;
// Load package information
io::IInStream *is = resources()->read_stream(LSP_BUILTIN_PREFIX "manifest.json");
if (is == NULL)
{
lsp_error("No manifest.json found in resources");
return STATUS_BAD_STATE;
}
res = meta::load_manifest(&pPackage, is);
is->close();
delete is;
if (res != STATUS_OK)
{
lsp_error("Error while reading manifest file");
return res;
}
// Create OSC packet buffer
pOscBuffer = reinterpret_cast<uint8_t *>(::malloc(OSC_PACKET_MAX + sizeof(LV2_Atom)));
// Perform all port bindings
for (const meta::port_t *port = meta->ports ; port->id != NULL; ++port)
create_port(port, NULL);
// Create atom transport
if (pExt->atom_supported())
{
size_t buffer_size = lv2_all_port_sizes(meta->ports, true, false);
if (meta->extensions & meta::E_FILE_PREVIEW)
buffer_size += PATH_MAX + 0x100;
pExt->ui_create_atom_transport(vExtPorts.size(), buffer_size);
}
// Add stub for latency reporting
{
const meta::port_t *port = &latency_port;
if ((port->id != NULL) && (port->name != NULL))
{
pLatency = new lv2::UIFloatPort(port, pExt, NULL);
vPorts.add(pLatency);
nLatencyID = vExtPorts.size();
if (pExt->atom_supported())
nLatencyID += 2; // Skip AtomIn, AtomOut
}
}
// Sort plugin ports
vPorts.qsort(compare_abstract_ports_by_urid);
vMeshPorts.qsort(compare_ports_by_urid);
vStreamPorts.qsort(compare_ports_by_urid);
vFrameBufferPorts.qsort(compare_ports_by_urid);
// Initialize wrapper
if ((res = IWrapper::init(root_widget)) != STATUS_OK)
return res;
// Initialize display settings
tk::display_settings_t settings;
resource::Environment env;
settings.resources = pLoader;
settings.environment = &env;
LSP_STATUS_ASSERT(env.set(LSP_TK_ENV_DICT_PATH, LSP_BUILTIN_PREFIX "i18n"));
LSP_STATUS_ASSERT(env.set(LSP_TK_ENV_LANG, "us"));
LSP_STATUS_ASSERT(env.set(LSP_TK_ENV_CONFIG, "lsp-plugins"));
// Create the display
lsp_trace("Initializing display");
pDisplay = new tk::Display(&settings);
if (pDisplay == NULL)
return STATUS_NO_MEM;
if ((res = pDisplay->init(0, NULL)) != STATUS_OK)
return res;
// Load visual schema
if ((res = init_visual_schema()) != STATUS_OK)
return res;
// Initialize the UI
lsp_trace("Initializing UI");
if ((res = pUI->init(this, pDisplay)) != STATUS_OK)
return res;
// Build the UI
if (meta->ui_resource != NULL)
{
void *parent_wnd = pExt->parent_window();
lsp_info("Building UI from %s, parent window=%p", meta->ui_resource, parent_wnd);
if ((res = build_ui(meta->ui_resource, parent_wnd)) != STATUS_OK)
{
lsp_error("Error building UI for resource %s: code=%d", meta->ui_resource, int(res));
return res;
}
}
// Call the post-initialization routine
if ((res = pUI->post_init()) != STATUS_OK)
return res;
// Initialize size of root window
ws::size_limit_t sr;
tk::Window *root = window();
if (root == NULL)
{
lsp_error("No root window present!\n");
return STATUS_BAD_STATE;
}
root->slot(tk::SLOT_SHOW)->bind(slot_ui_show, this);
root->slot(tk::SLOT_HIDE)->bind(slot_ui_hide, this);
root->slot(tk::SLOT_RESIZE)->bind(slot_ui_resize, this);
// Sync state of UI ports with the UI
for (size_t i=0, n=vPorts.size(); i<n; ++i)
{
ui::IPort *p = vPorts.uget(i);
if (p != NULL)
p->notify_all(ui::PORT_NONE);
}
// Resize UI and show
root->get_padded_size_limits(&sr);
pExt->resize_ui(sr.nMinWidth, sr.nMinHeight);
root->show();
return STATUS_OK;
}
lv2::UIPort *UIWrapper::create_port(const meta::port_t *p, const char *postfix)
{
lv2::UIPort *result = NULL;
lv2::Wrapper *w = pExt->wrapper();
switch (p->role)
{
case meta::R_MIDI: // Skip all MIDI ports
break;
case meta::R_AUDIO: // Stub port
result = new lv2::UIPort(p, pExt);
if (postfix == NULL)
{
result->set_id(vExtPorts.size());
vExtPorts.add(result);
lsp_trace("Added external audio port id=%s, external_id=%d", p->id, int(result->get_id()));
}
break;
case meta::R_CONTROL:
result = new lv2::UIFloatPort(p, pExt, (w != NULL) ? w->port(p->id) : NULL);
if (postfix == NULL)
{
result->set_id(vExtPorts.size());
vExtPorts.add(result);
lsp_trace("Added external control port id=%s, external_id=%d", p->id, int(result->get_id()));
}
break;
case meta::R_BYPASS:
result = new lv2::UIBypassPort(p, pExt, (w != NULL) ? w->port(p->id) : NULL);
if (postfix == NULL)
{
result->set_id(vExtPorts.size());
vExtPorts.add(result);
lsp_trace("Added external bypass id=%s, external_id=%d", p->id, int(result->get_id()));
}
break;
case meta::R_METER:
result = new lv2::UIPeakPort(p, pExt, (w != NULL) ? w->port(p->id) : NULL);
if (postfix == NULL)
{
result->set_id(vExtPorts.size());
vExtPorts.add(result);
lsp_trace("Added external metering port id=%s, external_id=%d", p->id, int(result->get_id()));
}
break;
case meta::R_PATH:
if (pExt->atom_supported())
result = new lv2::UIPathPort(p, pExt, (w != NULL) ? w->port(p->id) : NULL);
else
result = new lv2::UIPort(p, pExt); // Stub port
lsp_trace("Added path port id=%", p->id);
break;
case meta::R_MESH:
if (pExt->atom_supported())
{
result = new lv2::UIMeshPort(p, pExt, (w != NULL) ? w->port(p->id) : NULL);
vMeshPorts.add(result);
}
else // Stub port
result = new lv2::UIPort(p, pExt);
lsp_trace("Added mesh port id=%", p->id);
break;
case meta::R_STREAM:
if (pExt->atom_supported())
{
result = new lv2::UIStreamPort(p, pExt, (w != NULL) ? w->port(p->id) : NULL);
vStreamPorts.add(result);
}
else // Stub port
result = new lv2::UIPort(p, pExt);
lsp_trace("Added stream port id=%", p->id);
break;
case meta::R_FBUFFER:
if (pExt->atom_supported())
{
result = new lv2::UIFrameBufferPort(p, pExt, (w != NULL) ? w->port(p->id) : NULL);
vFrameBufferPorts.add(result);
}
else // Stub port
result = new lv2::UIPort(p, pExt);
lsp_trace("Added framebuffer port id=%", p->id);
break;
case meta::R_PORT_SET:
{
char postfix_buf[MAX_PARAM_ID_BYTES];
lv2::UIPortGroup *pg = new lv2::UIPortGroup(p, pExt, (w != NULL) ? w->port(p->id) : NULL);
vPorts.add(pg);
// Add nested ports
for (size_t row=0; row<pg->rows(); ++row)
{
// Generate postfix
snprintf(postfix_buf, sizeof(postfix_buf)-1, "%s_%d", (postfix != NULL) ? postfix : "", int(row));
// Clone port metadata
meta::port_t *cm = clone_port_metadata(p->members, postfix_buf);
if (cm == NULL)
continue;
vGenMetadata.add(cm);
// Create nested ports
for (; cm->id != NULL; ++cm)
{
if (meta::is_growing_port(cm))
cm->start = cm->min + ((cm->max - cm->min) * row) / float(pg->rows());
else if (meta::is_lowering_port(cm))
cm->start = cm->max - ((cm->max - cm->min) * row) / float(pg->rows());
// Create port
create_port(cm, postfix_buf);
}
}
lsp_trace("Added port set port id=%", p->id);
break;
}
default:
break;
}
if (result != NULL)
vPorts.add(result);
return result;
}
int UIWrapper::resize_ui(ssize_t width, ssize_t height)
{
tk::Window *root = (pUI != NULL) ? window() : NULL;
if (root == NULL)
return 0;
// Resize UI and show
lsp_trace("width=%d, height=%d", int(width), int(height));
ws::size_limit_t sr;
root->get_padded_size_limits(&sr);
// Apply size constraints
if ((sr.nMaxWidth >= 0) && (width > sr.nMaxWidth))
width = sr.nMaxWidth;
if ((sr.nMaxHeight >= 0) && (height > sr.nMaxHeight))
height = sr.nMaxHeight;
if ((sr.nMinWidth >= 0) && (width < sr.nMinWidth))
width = sr.nMinWidth;
if ((sr.nMinHeight >= 0) && (height < sr.nMinHeight))
height = sr.nMinHeight;
// Perform resize
//TODO: root->realize_widget(r)resize(width, height);
return 0;
}
void UIWrapper::ui_activated()
{
if (bConnected)
return;
lsp_trace("UI has been activated");
if (pExt != NULL)
{
lv2::Wrapper *w = pExt->wrapper();
if (w != NULL)
{
lsp_trace("Connecting directly to plugin");
w->connect_direct_ui();
}
else
pExt->ui_connect_to_plugin();
bConnected = true;
}
}
void UIWrapper::ui_deactivated()
{
if (!bConnected)
return;
lsp_finally { bConnected = false; };
lsp_trace("UI has been deactivated");
if (pExt != NULL)
{
lv2::Wrapper *w = pExt->wrapper();
if (w != NULL)
{
lsp_trace("Disconnecting directly from plugin");
w->disconnect_direct_ui();
}
else
pExt->ui_disconnect_from_plugin();
}
}
float UIWrapper::ui_scaling_factor(float scaling)
{
return (pExt != NULL) ? pExt->fUIScaleFactor * 100.0f : scaling;
}
void UIWrapper::parse_raw_osc_event(osc::parse_frame_t *frame)
{
osc::parse_token_t token;
status_t res = osc::parse_token(frame, &token);
if (res != STATUS_OK)
return;
if (token == osc::PT_BUNDLE)
{
osc::parse_frame_t child;
uint64_t time_tag;
status_t res = osc::parse_begin_bundle(&child, frame, &time_tag);
if (res != STATUS_OK)
return;
parse_raw_osc_event(&child); // Perform recursive call
osc::parse_end(&child);
}
else if (token == osc::PT_MESSAGE)
{
const void *msg_start;
size_t msg_size;
const char *msg_addr;
// Perform address lookup and routing
status_t res = osc::parse_raw_message(frame, &msg_start, &msg_size, &msg_addr);
if (res != STATUS_OK)
return;
lsp_trace("Received OSC message, address=%s, size=%d", msg_addr, int(msg_size));
osc::dump_packet(msg_start, msg_size);
// Try to parse KVT message first
res = core::KVTDispatcher::parse_message(&sKVT, msg_start, msg_size, core::KVT_TX);
if (res != STATUS_SKIP)
return;
// Not a KVT message, submit to OSC ports (if present)
for (size_t i=0, n=vOscInPorts.size(); i<n; ++i)
{
lv2::UIPort *p = vOscInPorts.uget(i);
if (p == NULL)
continue;
// Submit message to the buffer
core::osc_buffer_t *buf = p->buffer<core::osc_buffer_t>();
if (buf != NULL)
buf->submit(msg_start, msg_size);
}
}
}
void UIWrapper::receive_raw_osc_packet(const void *data, size_t size)
{
osc::parser_t parser;
osc::parser_frame_t root;
status_t res = osc::parse_begin(&root, &parser, data, size);
if (res == STATUS_OK)
{
parse_raw_osc_event(&root);
osc::parse_end(&root);
osc::parse_destroy(&parser);
}
}
void UIWrapper::receive_atom(const LV2_Atom_Object * obj)
{
if (obj->body.otype == pExt->uridPatchSet)
{
lsp_trace("received PATCH_SET message");
// Parse atom body
LV2_Atom_Property_Body *body = lv2_atom_object_begin(&obj->body);
const LV2_Atom_URID *key = NULL;
const LV2_Atom *value = NULL;
while (!lv2_atom_object_is_end(&obj->body, obj->atom.size, body))
{
lsp_trace("body->key (%d) = %s", int(body->key), pExt->unmap_urid(body->key));
lsp_trace("body->value.type (%d) = %s", int(body->value.type), pExt->unmap_urid(body->value.type));
if ((body->key == pExt->uridPatchProperty) && (body->value.type == pExt->uridAtomUrid))
{
key = reinterpret_cast<const LV2_Atom_URID *>(&body->value);
lsp_trace("body->value.body (%d) = %s", int(key->body), pExt->unmap_urid(key->body));
}
else if (body->key == pExt->uridPatchValue)
value = &body->value;
if ((key != NULL) && (value != NULL))
{
lv2::UIPort *p = find_by_urid(vPorts, key->body);
if ((p != NULL) && (value->type == p->get_type_urid()))
{
p->deserialize(value);
p->notify_all(ui::PORT_NONE);
}
key = NULL;
value = NULL;
}
body = lv2_atom_object_next(body);
}
}
else if (obj->body.otype == pExt->uridTimePosition)
{
// lsp_trace("Received timePosition");
plug::position_t pos = sPosition;
pos.ticksPerBeat = DEFAULT_TICKS_PER_BEAT;
// lsp_trace("triggered timePosition event");
for (
LV2_Atom_Property_Body *body = lv2_atom_object_begin(&obj->body) ;
!lv2_atom_object_is_end(&obj->body, obj->atom.size, body) ;
body = lv2_atom_object_next(body)
)
{
// lsp_trace("body->key (%d) = %s", int(body->key), pExt->unmap_urid(body->key));
// lsp_trace("body->value.type (%d) = %s", int(body->value.type), pExt->unmap_urid(body->value.type));
if ((body->key == pExt->uridTimeFrame) && (body->value.type == pExt->forge.Long))
pos.frame = (reinterpret_cast<LV2_Atom_Long *>(&body->value))->body;
else if ((body->key == pExt->uridTimeSpeed) && (body->value.type == pExt->forge.Float))
pos.speed = (reinterpret_cast<LV2_Atom_Float *>(&body->value))->body;
else if ((body->key == pExt->uridTimeBeatsPerMinute) && (body->value.type == pExt->forge.Float))
pos.beatsPerMinute = (reinterpret_cast<LV2_Atom_Float *>(&body->value))->body;
else if ((body->key == pExt->uridTimeBeatUnit) && (body->value.type == pExt->forge.Int))
pos.denominator = (reinterpret_cast<LV2_Atom_Int *>(&body->value))->body;
else if ((body->key == pExt->uridTimeBeatsPerBar) && (body->value.type == pExt->forge.Float))
pos.numerator = (reinterpret_cast<LV2_Atom_Float *>(&body->value))->body;
else if ((body->key == pExt->uridTimeBarBeat) && (body->value.type == pExt->forge.Float))
pos.tick = (reinterpret_cast<LV2_Atom_Float *>(&body->value))->body * pos.ticksPerBeat;
else if ((body->key == pExt->uridTimeFrameRate) && (body->value.type == pExt->forge.Float))
pos.sampleRate = (reinterpret_cast<LV2_Atom_Float *>(&body->value))->body;
}
// Call plugin callback and update position
IWrapper::position_updated(&pos);
}
else if (obj->body.otype == pExt->uridMeshType)
{
// Try to find the corresponding mesh port
lv2::UIPort *p = find_by_urid(vMeshPorts, obj->body.id);
if (p != NULL)
{
p->deserialize(obj);
p->notify_all(ui::PORT_NONE);
}
}
else if (obj->body.otype == pExt->uridStreamType)
{
// Try to find the corresponding mesh port
lv2::UIPort *p = find_by_urid(vStreamPorts, obj->body.id);
if (p != NULL)
{
p->deserialize(obj);
p->notify_all(ui::PORT_NONE);
}
}
else if (obj->body.otype == pExt->uridFrameBufferType)
{
// Try to find the corresponding mesh port
lv2::UIPort *p = find_by_urid(vFrameBufferPorts, obj->body.id);
if (p != NULL)
{
p->deserialize(obj);
p->notify_all(ui::PORT_NONE);
}
}
else if (obj->body.otype == pExt->uridPlayPositionType)
{
// We have received the current playback position
wssize_t position = -1;
wssize_t length = -1;
for (
LV2_Atom_Property_Body *body = lv2_atom_object_begin(&obj->body) ;
!lv2_atom_object_is_end(&obj->body, obj->atom.size, body) ;
body = lv2_atom_object_next(body)
)
{
// lsp_trace("body->key (%d) = %s", int(body->key), pExt->unmap_urid(body->key));
// lsp_trace("body->value.type (%d) = %s", int(body->value.type), pExt->unmap_urid(body->value.type));
if ((body->key == pExt->uridPlayPositionPosition) && (body->value.type == pExt->forge.Long))
position = (reinterpret_cast<LV2_Atom_Long *>(&body->value))->body;
else if ((body->key == pExt->uridPlayPositionLength) && (body->value.type == pExt->forge.Long))
length = (reinterpret_cast<LV2_Atom_Long *>(&body->value))->body;
}
lsp_trace("received play position = %lld, length=%lld", (long long)position, (long long)length);
notify_play_position(position, length);
}
else
{
lsp_trace("obj->body.otype = %d (%s)", int(obj->body.otype), pExt->unmap_urid(obj->body.otype));
lsp_trace("obj->body.id = %d (%s)", int(obj->body.id), pExt->unmap_urid(obj->body.id));
}
}
void UIWrapper::notify(size_t id, size_t size, size_t format, const void *buf)
{
if (id < vExtPorts.size())
{
lv2::UIPort *p = vExtPorts[id];
if (p != NULL)
{
p->notify(buf, format, size);
p->notify_all(ui::PORT_NONE);
}
}
else if ((pExt->nAtomIn >= 0) && (id == size_t(pExt->nAtomIn)))
{
if (format != pExt->uridEventTransfer)
return;
// Check that event is an object
const LV2_Atom* atom = reinterpret_cast<const LV2_Atom*>(buf);
lsp_trace("atom.type = %d (%s)", int(atom->type), pExt->unmap_urid(atom->type));
if ((atom->type == pExt->uridObject) || (atom->type == pExt->uridBlank))
receive_atom(reinterpret_cast<const LV2_Atom_Object *>(atom));
else if (atom->type == pExt->uridOscRawPacket)
receive_raw_osc_packet(&atom[1], atom->size);
}
else if (id == nLatencyID)
{
if (pLatency != NULL)
pLatency->notify(buf, format, size);
}
}
void UIWrapper::send_kvt_state()
{
core::KVTIterator *iter = sKVT.enum_rx_pending();
if (iter == NULL)
return;
const core::kvt_param_t *p;
const char *kvt_name;
size_t size;
status_t res;
while (iter->next() == STATUS_OK)
{
// Fetch next change
res = iter->get(&p);
kvt_name = iter->name();
if ((res != STATUS_OK) || (kvt_name == NULL))
break;
// Try to serialize changes
res = core::KVTDispatcher::build_message(kvt_name, p, &pOscBuffer[sizeof(LV2_Atom)], &size, OSC_PACKET_MAX);
if (res == STATUS_OK)
{
core::KVTDispatcher *d = (pExt->wrapper() != NULL) ? pExt->wrapper()->kvt_dispatcher() : NULL;
// Forge raw OSC message as an atom message
if (d != NULL)
{
lsp_trace("Submitting OSC message");
osc::dump_packet(&pOscBuffer[sizeof(LV2_Atom)], size);
d->submit(&pOscBuffer[sizeof(LV2_Atom)], size); // Submit directly to the KVT dispatcher
}
else
{
lsp_trace("Sending OSC message");
osc::dump_packet(&pOscBuffer[sizeof(LV2_Atom)], size);
// Transmit message via atom interface
LV2_Atom *atom = reinterpret_cast<LV2_Atom *>(pOscBuffer);
atom->size = size;
atom->type = pExt->uridOscRawPacket;
size = (size + sizeof(LV2_Atom) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1); // padding
// Submit message to the atom output port
pExt->write_data(pExt->nAtomOut, size, pExt->uridEventTransfer, pOscBuffer);
}
}
// Commit transfer
iter->commit(core::KVT_RX);
}
}
void UIWrapper::receive_kvt_state()
{
lv2::Wrapper *w = pExt->wrapper();
if (w == NULL)
return;
// Obtain the dispatcher
core::KVTDispatcher *d = (pExt->wrapper() != NULL) ? pExt->wrapper()->kvt_dispatcher() : NULL;
if (d == NULL)
return;
if (d->tx_size() <= 0) // Is there data for transfer?
return;
core::KVTStorage *skvt = w->kvt_trylock();
if (skvt == NULL)
return;
size_t size;
if (sKVTMutex.lock())
{
status_t res;
do
{
// Try to fetch record from buffer
res = d->fetch(pOscBuffer, &size, OSC_PACKET_MAX);
switch (res)
{
case STATUS_OK:
{
lsp_trace("Fetched OSC packet of %d bytes", int(size));
osc::dump_packet(pOscBuffer, size);
core::KVTDispatcher::parse_message(&sKVT, pOscBuffer, size, core::KVT_TX);
break;
}
case STATUS_NO_DATA: // No more data to transmit
break;
case STATUS_OVERFLOW:
{
lsp_warn("Too large OSC packet in the buffer, skipping");
d->skip();
break;
}
default:
{
lsp_warn("OSC packet parsing error %d, skipping", int(res));
d->skip();
break;
}
}
} while (res != STATUS_NO_DATA);
sKVTMutex.unlock();
}
w->kvt_release();
}
void UIWrapper::sync_kvt_state()
{
// Synchronize DSP -> UI transfer
size_t sync;
const char *kvt_name;
const core::kvt_param_t *kvt_value;
do
{
sync = 0;
core::KVTIterator *it = sKVT.enum_tx_pending();
while (it->next() == STATUS_OK)
{
kvt_name = it->name();
if (kvt_name == NULL)
break;
status_t res = it->get(&kvt_value);
if (res != STATUS_OK)
break;
if ((res = it->commit(core::KVT_TX)) != STATUS_OK)
break;
kvt_dump_parameter("TX kvt param (DSP->UI): %s = ", kvt_value, kvt_name);
kvt_notify_write(&sKVT, kvt_name, kvt_value);
++sync;
}
} while (sync > 0);
// Synchronize UI -> DSP transfer
#ifdef LSP_DEBUG
{
core::KVTIterator *it = sKVT.enum_rx_pending();
while (it->next() == STATUS_OK)
{
kvt_name = it->name();
if (kvt_name == NULL)
break;
status_t res = it->get(&kvt_value);
if (res != STATUS_OK)
break;
if ((res = it->commit(core::KVT_RX)) != STATUS_OK)
break;
kvt_dump_parameter("RX kvt param (UI->DSP): %s = ", kvt_value, kvt_name);
}
}
#else
sKVT.commit_all(core::KVT_RX); // Just clear all RX queue for non-debug version
#endif
}
void UIWrapper::main_iteration()
{
// Synchronize port states avoiding LV2 Atom transport
Wrapper *w = pExt->wrapper();
if (w != NULL)
{
for (size_t i=0, n=vPorts.size(); i<n; ++i)
{
lv2::UIPort *p = static_cast<lv2::UIPort *>(vPorts.uget(i));
if (p == NULL)
continue;
if (p->sync())
p->notify_all(ui::PORT_NONE);
}
// Check that sample rate has changed
position_updated(w->position());
}
// Transmit KVT state
if (sKVTMutex.try_lock())
{
receive_kvt_state();
send_kvt_state();
sync_kvt_state();
sKVT.gc();
sKVTMutex.unlock();
}
// Send play event if it is pending
send_play_event();
// Call the parent wrapper code
IWrapper::main_iteration();
// Call main iteration for the underlying display
// For windows, we do not need to call main_iteration() because the main
// event loop is provided by the hosting application
#ifndef PLATFORM_WINDOWS
if (pDisplay != NULL)
pDisplay->main_iteration();
#endif /* PLATFORM_WINDOWS */
}
void UIWrapper::dump_state_request()
{
pExt->request_state_dump();
}
status_t UIWrapper::slot_ui_hide(tk::Widget *sender, void *ptr, void *data)
{
UIWrapper *_this = static_cast<UIWrapper *>(ptr);
_this->ui_deactivated();
return STATUS_OK;
}
status_t UIWrapper::slot_ui_show(tk::Widget *sender, void *ptr, void *data)
{
UIWrapper *_this = static_cast<UIWrapper *>(ptr);
_this->ui_activated();
return STATUS_OK;
}