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/************************************************************************
*
* Copyright (C) 2014-2025 IRCAD France
* Copyright (C) 2014-2019 IHU Strasbourg
*
* This file is part of Sight.
*
* Sight 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
* (at your option) any later version.
*
* Sight 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 Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#include "grabber.hpp"
#include <core/com/signal.hxx>
#include <core/com/slots.hxx>
namespace sight::io::service
{
const core::com::signals::key_t grabber::POSITION_MODIFIED_SIG = "position_modified";
const core::com::signals::key_t grabber::DURATION_MODIFIED_SIG = "duration_modified";
const core::com::signals::key_t grabber::CAMERA_STARTED_SIG = "camera_started";
const core::com::signals::key_t grabber::CAMERA_STOPPED_SIG = "camera_stopped";
const core::com::signals::key_t grabber::CAMERA_PAUSED_SIG = "camera_paused";
const core::com::signals::key_t grabber::FRAME_PRESENTED_SIG = "framePresented";
const core::com::signals::key_t grabber::PARAMETER_CHANGED_SIG = "parameter_changed";
const core::com::signals::key_t grabber::MONITOR_CREATED_SIG = "monitor_created";
const core::com::signals::key_t grabber::FPS_CHANGED_SIG = "fps_changed";
const core::com::slots::key_t grabber::START_CAMERA_SLOT = "start_camera";
const core::com::slots::key_t grabber::STOP_CAMERA_SLOT = "stop_camera";
const core::com::slots::key_t grabber::PAUSE_CAMERA_SLOT = "pause_camera";
const core::com::slots::key_t grabber::PLAY_PAUSE_CAMERA_SLOT = "playPauseCamera";
const core::com::slots::key_t grabber::LOOP_VIDEO_SLOT = "loop_video";
const core::com::slots::key_t grabber::SET_POSITION_VIDEO_SLOT = "set_position_video";
const core::com::slots::key_t grabber::PREVIOUS_IMAGE_SLOT = "previous_image";
const core::com::slots::key_t grabber::NEXT_IMAGE_SLOT = "next_image";
const core::com::slots::key_t grabber::SET_STEP_SLOT = "set_step";
const core::com::slots::key_t grabber::SET_PARAMETER_SLOT = "set_parameter";
const core::com::slots::key_t grabber::REQUEST_SETTINGS_SLOT = "request_settings";
const core::com::slots::key_t grabber::OPTIMIZE_SLOT = "optimize";
const core::com::slots::key_t grabber::FORWARD_FPS_CHANGED_SLOT = "forward_fps_changed";
const std::string grabber::ADD_ROI_CENTER_SLOT = "add_roi_center";
const std::string grabber::REMOVE_ROI_CENTER_SLOT = "remove_roi_center";
// ----------------------------------------------------------------------------
grabber::grabber() noexcept :
notifier(m_signals)
{
//Declare all signals
new_signal<position_modified_signal_t>(POSITION_MODIFIED_SIG);
new_signal<duration_modified_signal_t>(DURATION_MODIFIED_SIG);
new_signal<camera_started_signal_t>(CAMERA_STARTED_SIG);
new_signal<camera_stopped_signal_t>(CAMERA_STOPPED_SIG);
new_signal<camera_paused_signal_t>(CAMERA_PAUSED_SIG);
new_signal<frame_presented_signal_t>(FRAME_PRESENTED_SIG);
new_signal<parameter_changed_t>(PARAMETER_CHANGED_SIG);
new_signal<monitor_created_signal_t>(MONITOR_CREATED_SIG);
new_signal<fps_changed_signal_t>(FPS_CHANGED_SIG);
new_slot(START_CAMERA_SLOT, &grabber::start_camera, this);
new_slot(STOP_CAMERA_SLOT, &grabber::stop_camera, this);
new_slot(PAUSE_CAMERA_SLOT, &grabber::pause_camera, this);
new_slot(PLAY_PAUSE_CAMERA_SLOT, &grabber::play_pause_camera, this);
new_slot(LOOP_VIDEO_SLOT, &grabber::toggle_loop_mode, this);
new_slot(SET_POSITION_VIDEO_SLOT, &grabber::set_position, this);
new_slot(PREVIOUS_IMAGE_SLOT, &grabber::previous_image, this);
new_slot(NEXT_IMAGE_SLOT, &grabber::next_image, this);
new_slot(SET_STEP_SLOT, &grabber::set_step, this);
new_slot(SET_PARAMETER_SLOT, &grabber::set_parameter, this);
new_slot(REQUEST_SETTINGS_SLOT, &grabber::request_settings, this);
new_slot(OPTIMIZE_SLOT, &grabber::optimize, this);
new_slot(ADD_ROI_CENTER_SLOT, &grabber::add_roi_center, this);
new_slot(REMOVE_ROI_CENTER_SLOT, &grabber::remove_roi_center, this);
new_slot(FORWARD_FPS_CHANGED_SLOT, &grabber::forward_fps_changed, this);
}
// ----------------------------------------------------------------------------
void grabber::play_pause_camera()
{
if(m_is_started)
{
this->pause_camera();
}
else
{
this->start_camera();
}
}
// ----------------------------------------------------------------------------
void grabber::previous_image()
{
SIGHT_WARN("Frame by frame mode not implemented for this grabber type.");
}
// ----------------------------------------------------------------------------
void grabber::next_image()
{
SIGHT_WARN("Frame by frame mode not implemented for this grabber type.");
}
// ----------------------------------------------------------------------------
void grabber::set_step(int /*step*/, std::string /*key*/)
{
SIGHT_WARN("Frame by frame mode not implemented for this grabber type.");
}
//-----------------------------------------------------------------------------
void grabber::set_parameter(ui::parameter_t /*unused*/, std::string /*unused*/)
{
}
// ----------------------------------------------------------------------------
void grabber::request_settings()
{
}
// ----------------------------------------------------------------------------
void grabber::optimize()
{
}
//------------------------------------------------------------------------------
void grabber::add_roi_center(sight::data::point::sptr /*unused*/)
{
}
//------------------------------------------------------------------------------
void grabber::remove_roi_center(sight::data::point::sptr /*unused*/)
{
}
//------------------------------------------------------------------------------
void grabber::clear_timeline(data::frame_tl& _tl)
{
if(_tl.is_allocated())
{
// Clear the timeline: send a black frame
const core::clock::type timestamp = _tl.get_newer_timestamp() + 1;
SPTR(data::frame_tl::buffer_t) buffer = _tl.create_buffer(timestamp);
auto* dest_buffer = reinterpret_cast<std::uint8_t*>(buffer->add_element(0));
std::memset(dest_buffer, 0, _tl.get_width() * _tl.get_height() * _tl.num_components() * _tl.type().size());
// push buffer and notify
_tl.clear_timeline();
_tl.push_object(buffer);
auto sig_tl = _tl.signal<data::timeline::signals::pushed_t>(
data::timeline::signals::PUSHED
);
sig_tl->async_emit(timestamp);
}
}
//------------------------------------------------------------------------------
void grabber::forward_fps_changed(double /* fps */)
{
}
// ----------------------------------------------------------------------------
} // namespace sight::io::service
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