[libsigrokflow.git] / src / main.cpp

/*
 * This file is part of the libsigrokflow project.
 *
 * Copyright (C) 2018 Martin Ling <martin-sigrok@earth.li>
 * Copyright (C) 2018 Uwe Hermann <uwe@hermann-uwe.de>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <config.h>
#include <iostream>
#include <libsigrokflow/libsigrokflow.hpp>

namespace Srf
{

using namespace std;
using namespace std::placeholders;

void init()
{
	static bool srf_initialized = false;

	if (srf_initialized)
		throw runtime_error("libsigrokflow is already initialized");

#ifdef HAVE_LIBSIGROKCXX
	Gst::Plugin::register_static(GST_VERSION_MAJOR, GST_VERSION_MINOR,
			"sigrok_legacy_capture_device",
			"Wrapper for capture devices using legacy libsigrok APIs",
			sigc::ptr_fun(&LegacyCaptureDevice::register_element),
			"0.01", "GPL", "sigrok", "libsigrokflow", "http://sigrok.org");
	Gst::Plugin::register_static(GST_VERSION_MAJOR, GST_VERSION_MINOR,
			"sigrok_legacy_input",
			"Wrapper for inputs using legacy libsigrok APIs",
			sigc::ptr_fun(&LegacyInput::register_element),
			"0.01", "GPL", "sigrok", "libsigrokflow", "http://sigrok.org");
	Gst::Plugin::register_static(GST_VERSION_MAJOR, GST_VERSION_MINOR,
			"sigrok_legacy_output",
			"Wrapper for outputs using legacy libsigrok APIs",
			sigc::ptr_fun(&LegacyOutput::register_element),
			"0.01", "GPL", "sigrok", "libsigrokflow", "http://sigrok.org");
#endif
#ifdef HAVE_LIBSIGROKDECODE
	Gst::Plugin::register_static(GST_VERSION_MAJOR, GST_VERSION_MINOR,
			"sigrok_legacy_decoder",
			"Wrapper for protocol decoders using legacy libsigrokdecode APIs",
			sigc::ptr_fun(&LegacyDecoder::register_element),
			"0.01", "GPL", "sigrok", "libsigrokflow", "http://sigrok.org");
#endif

	srf_initialized = true;
}

Sink::Sink(GstBaseSink *gobj) :
	Gst::BaseSink(gobj)
{
}

Device::Device(GstElement *gobj) :
	Gst::Element(gobj)
{
}

CaptureDevice::CaptureDevice(GstElement *gobj) :
	Device(gobj)
{
}

#ifdef HAVE_LIBSIGROKCXX
void LegacyCaptureDevice::class_init(Gst::ElementClass<LegacyCaptureDevice> *klass)
{
	klass->set_metadata("sigrok legacy capture device",
			"Source", "Wrapper for capture devices using legacy libsigrok APIs",
			"Martin Ling");

	klass->add_pad_template(Gst::PadTemplate::create(
			"src",
			Gst::PAD_SRC,
			Gst::PAD_ALWAYS,
			Gst::Caps::create_any()));
}

bool LegacyCaptureDevice::register_element(Glib::RefPtr<Gst::Plugin> plugin)
{
	Gst::ElementFactory::register_element(plugin, "sigrok_legacy_capture_device",
			0, Gst::register_mm_type<LegacyCaptureDevice>(
				"sigrok_legacy_capture_device"));
	return true;
}

LegacyCaptureDevice::LegacyCaptureDevice(GstElement *gobj) :
	Glib::ObjectBase(typeid(LegacyCaptureDevice)),
	CaptureDevice(gobj)
{
	add_pad(_src_pad = Gst::Pad::create(get_pad_template("src"), "src"));
}

Glib::RefPtr<LegacyCaptureDevice>LegacyCaptureDevice::create(
	shared_ptr<sigrok::HardwareDevice> libsigrok_device)
{
	auto element = Gst::ElementFactory::create_element("sigrok_legacy_capture_device");
	if (!element)
		throw runtime_error("Failed to create element - plugin not registered?");
	auto device = Glib::RefPtr<LegacyCaptureDevice>::cast_static(element);
	device->_libsigrok_device = libsigrok_device;
	return device;
}

shared_ptr<sigrok::HardwareDevice> LegacyCaptureDevice::libsigrok_device()
{
	return _libsigrok_device;
}

Gst::StateChangeReturn LegacyCaptureDevice::change_state_vfunc(Gst::StateChange transition)
{
	switch (transition)
	{
		case Gst::STATE_CHANGE_READY_TO_PAUSED:
			return Gst::StateChangeReturn::STATE_CHANGE_NO_PREROLL;
		case Gst::STATE_CHANGE_PAUSED_TO_PLAYING:
			_task = Gst::Task::create(std::bind(&LegacyCaptureDevice::_run, this));
			_task->set_lock(_mutex);
			_src_pad->set_active(true);
			_task->start();
			return Gst::STATE_CHANGE_SUCCESS;
		default:
			return Gst::STATE_CHANGE_SUCCESS;
	}
}

void LegacyCaptureDevice::_datafeed_callback(
	shared_ptr<sigrok::Device> device,
	shared_ptr<sigrok::Packet> packet)
{
	(void) device;
	switch (packet->type()->id()) {
		case SR_DF_LOGIC:
		{
			auto logic = static_pointer_cast<sigrok::Logic>(packet->payload());
			auto mem = Gst::Memory::create(
					Gst::MEMORY_FLAG_READONLY,
					logic->data_pointer(),
					logic->data_length(),
					0,
					logic->data_length());
			auto buf = Gst::Buffer::create();
			buf->append_memory(move(mem));
			_src_pad->push(move(buf));
			break;
		}
		case SR_DF_END:
			_session->stop();
			_src_pad->push_event(Gst::EventEos::create());
			break;
		default:
			break;
	}
}

void LegacyCaptureDevice::_run()
{
	_session = _libsigrok_device->driver()->parent()->create_session();
	_session->add_device(_libsigrok_device);
	_session->add_datafeed_callback(bind(&LegacyCaptureDevice::_datafeed_callback, this, _1, _2));
	_session->start();
	_session->run();
	_task->stop();
}

void LegacyInput::class_init(Gst::ElementClass<LegacyInput> *klass)
{
	klass->set_metadata("sigrok legacy input",
			"Transform", "Wrapper for inputs using legacy libsigrok APIs",
			"Martin Ling");

	klass->add_pad_template(Gst::PadTemplate::create(
			"sink",
			Gst::PAD_SINK,
			Gst::PAD_ALWAYS,
			Gst::Caps::create_any()));

	klass->add_pad_template(Gst::PadTemplate::create(
			"src",
			Gst::PAD_SRC,
			Gst::PAD_ALWAYS,
			Gst::Caps::create_any()));
}

bool LegacyInput::register_element(Glib::RefPtr<Gst::Plugin> plugin)
{
	Gst::ElementFactory::register_element(plugin, "sigrok_legacy_input",
			0, Gst::register_mm_type<LegacyInput>(
				"sigrok_legacy_input"));
	return true;
}

LegacyInput::LegacyInput(GstElement *gobj) :
	Glib::ObjectBase(typeid(LegacyInput)),
	Gst::Element(gobj)
{
	add_pad(_sink_pad = Gst::Pad::create(get_pad_template("sink"), "sink"));
	add_pad(_src_pad = Gst::Pad::create(get_pad_template("src"), "src"));
	_sink_pad->set_chain_function(sigc::mem_fun(*this, &LegacyInput::chain));
}

Glib::RefPtr<LegacyInput> LegacyInput::create(
	shared_ptr<sigrok::InputFormat> libsigrok_input_format,
	map<string, Glib::VariantBase> options)
{
	auto element = Gst::ElementFactory::create_element("sigrok_legacy_input");
	if (!element)
		throw runtime_error("Failed to create element - plugin not registered?");
	auto input = Glib::RefPtr<LegacyInput>::cast_static(element);
	input->_libsigrok_input_format = libsigrok_input_format;
	input->_options = options;
	return input;
}

bool LegacyInput::start_vfunc()
{
	_libsigrok_input = _libsigrok_input_format->create_input(_options);
	auto context = _libsigrok_input_format->parent();
	_session = context->create_session();
	_session->add_device(_libsigrok_input->device());
	_session->add_datafeed_callback(bind(&LegacyInput::_datafeed_callback, this, _1, _2));
	_session->start();
	return true;
}

void LegacyInput::_datafeed_callback(
	shared_ptr<sigrok::Device> device,
	shared_ptr<sigrok::Packet> packet)
{
	(void) device;
	switch (packet->type()->id()) {
		case SR_DF_LOGIC:
		{
			auto logic = static_pointer_cast<sigrok::Logic>(packet->payload());
			auto mem = Gst::Memory::create(
					Gst::MEMORY_FLAG_READONLY,
					logic->data_pointer(),
					logic->data_length(),
					0,
					logic->data_length());
			auto buf = Gst::Buffer::create();
			buf->append_memory(move(mem));
			_src_pad->push(move(buf));
			break;
		}
		case SR_DF_END:
			_session->stop();
			_src_pad->push_event(Gst::EventEos::create());
			break;
		default:
			break;
	}
}

Gst::FlowReturn LegacyInput::chain(const Glib::RefPtr<Gst::Pad> &,
                        const Glib::RefPtr<Gst::Buffer> &buf)
{
	Gst::MapInfo info;
	buf->map(info, Gst::MAP_READ);
	_libsigrok_input->send(info.get_data(), info.get_size());
	buf->unmap(info);
	return Gst::FLOW_OK;
}

bool LegacyInput::stop_vfunc()
{
	_libsigrok_input->end();
	return true;
}

void LegacyOutput::class_init(Gst::ElementClass<LegacyOutput> *klass)
{
	klass->set_metadata("sigrok legacy output",
			"Sink", "Wrapper for outputs using legacy libsigrok APIs",
			"Martin Ling");

	klass->add_pad_template(Gst::PadTemplate::create(
			"sink",
			Gst::PAD_SINK,
			Gst::PAD_ALWAYS,
			Gst::Caps::create_any()));
}

bool LegacyOutput::register_element(Glib::RefPtr<Gst::Plugin> plugin)
{
	Gst::ElementFactory::register_element(plugin, "sigrok_legacy_output",
			0, Gst::register_mm_type<LegacyOutput>(
				"sigrok_legacy_output"));
	return true;
}

LegacyOutput::LegacyOutput(GstBaseSink *gobj) :
	Glib::ObjectBase(typeid(LegacyOutput)),
	Sink(gobj)
{
}

Glib::RefPtr<LegacyOutput>LegacyOutput::create(
	shared_ptr<sigrok::OutputFormat> libsigrok_output_format,
	shared_ptr<sigrok::Device> libsigrok_device,
	map<string, Glib::VariantBase> options)
{
	auto element = Gst::ElementFactory::create_element("sigrok_legacy_output");
	if (!element)
		throw runtime_error("Failed to create element - plugin not registered?");
	auto output = Glib::RefPtr<LegacyOutput>::cast_static(element);
	output->_libsigrok_output_format = libsigrok_output_format;
	output->_libsigrok_device = libsigrok_device;
	output->_options = options;
	return output;
}

bool LegacyOutput::start_vfunc()
{
	_libsigrok_output = _libsigrok_output_format->create_output(
			_libsigrok_device, _options);
	return true;
}

Gst::FlowReturn LegacyOutput::render_vfunc(const Glib::RefPtr<Gst::Buffer> &buffer)
{
	Gst::MapInfo info;
	buffer->map(info, Gst::MAP_READ);
	auto context = _libsigrok_output_format->parent();
	auto packet = context->create_logic_packet(
			info.get_data(), info.get_size(), 2);
	auto result = _libsigrok_output->receive(packet);
	cout << result;
	buffer->unmap(info);
	return Gst::FLOW_OK;
}

bool LegacyOutput::stop_vfunc()
{
	auto context = _libsigrok_output_format->parent();
	auto end_packet = context->create_end_packet();
	auto result = _libsigrok_output->receive(end_packet);
	cout << result;
	return true;
}
#endif

#ifdef HAVE_LIBSIGROKDECODE
void LegacyDecoder::class_init(Gst::ElementClass<LegacyDecoder> *klass)
{
	klass->set_metadata("sigrok legacy decoder",
			"Sink", "Wrapper for protocol decoders using legacy libsigrokdecode APIs",
			"Uwe Hermann");

	klass->add_pad_template(Gst::PadTemplate::create(
			"sink",
			Gst::PAD_SINK,
			Gst::PAD_ALWAYS,
			Gst::Caps::create_any()));
}

bool LegacyDecoder::register_element(Glib::RefPtr<Gst::Plugin> plugin)
{
	Gst::ElementFactory::register_element(plugin, "sigrok_legacy_decoder",
			0, Gst::register_mm_type<LegacyDecoder>(
				"sigrok_legacy_decoder"));
	return true;
}

LegacyDecoder::LegacyDecoder(GstBaseSink *gobj) :
	Glib::ObjectBase(typeid(LegacyDecoder)),
	Sink(gobj)
{
}

Glib::RefPtr<LegacyDecoder>LegacyDecoder::create(
	struct srd_session *libsigrokdecode_session, uint64_t unitsize)
{
	auto element = Gst::ElementFactory::create_element("sigrok_legacy_decoder");
	if (!element)
		throw runtime_error("Failed to create element - plugin not registered?");
	auto decoder = Glib::RefPtr<LegacyDecoder>::cast_static(element);
	decoder->_session = libsigrokdecode_session;
	decoder->_unitsize = unitsize;
	return decoder;
}

struct srd_session *LegacyDecoder::libsigrokdecode_session()
{
	return _session;
}

Gst::FlowReturn LegacyDecoder::render_vfunc(const Glib::RefPtr<Gst::Buffer> &buffer)
{
	Gst::MapInfo info;
	buffer->map(info, Gst::MAP_READ);
	uint64_t num_samples = info.get_size() / _unitsize;
	srd_session_send(_session, _abs_ss, _abs_ss + num_samples,
		info.get_data(), info.get_size(), _unitsize);
	_abs_ss += num_samples;
	buffer->unmap(info);
	return Gst::FLOW_OK;
}

bool LegacyDecoder::start_vfunc()
{
	_abs_ss = 0;
	srd_session_start(_session);
	return true;
}

bool LegacyDecoder::stop_vfunc()
{
	srd_session_terminate_reset(_session);
	return true;
}
#endif

}
Commit	Line	Data
572e76fe UH	1	/*
	2	* This file is part of the libsigrokflow project.
	3	*
f1eaad84	4	* Copyright (C) 2018 Martin Ling <martin-sigrok@earth.li>
572e76fe UH	5	* Copyright (C) 2018 Uwe Hermann <uwe@hermann-uwe.de>
	6	*
	7	* This program is free software: you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation, either version 3 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	19	*/
	20
	21	#include <config.h>
f7363af1	22	#include <iostream>
45e6e688	23	#include <libsigrokflow/libsigrokflow.hpp>
f7363af1	24
b903bb0a UH	25	namespace Srf
	26	{
	27
f7363af1	28	using namespace std;
d03b3a98	29	using namespace std::placeholders;
f7363af1	30
b903bb0a UH	31	void init()
b903bb0a UH	32	{
fa243f2c UH	33	static bool srf_initialized = false;
	34
	35	if (srf_initialized)
	36	throw runtime_error("libsigrokflow is already initialized");
	37
1060e9b5	38	#ifdef HAVE_LIBSIGROKCXX
6d71d36a ML	39	Gst::Plugin::register_static(GST_VERSION_MAJOR, GST_VERSION_MINOR,
	40	"sigrok_legacy_capture_device",
	41	"Wrapper for capture devices using legacy libsigrok APIs",
	42	sigc::ptr_fun(&LegacyCaptureDevice::register_element),
97513ff0	43	"0.01", "GPL", "sigrok", "libsigrokflow", "http://sigrok.org");
92d521e7 ML	44	Gst::Plugin::register_static(GST_VERSION_MAJOR, GST_VERSION_MINOR,
	45	"sigrok_legacy_input",
	46	"Wrapper for inputs using legacy libsigrok APIs",
	47	sigc::ptr_fun(&LegacyInput::register_element),
	48	"0.01", "GPL", "sigrok", "libsigrokflow", "http://sigrok.org");
e2cfc0ef ML	49	Gst::Plugin::register_static(GST_VERSION_MAJOR, GST_VERSION_MINOR,
	50	"sigrok_legacy_output",
	51	"Wrapper for outputs using legacy libsigrok APIs",
	52	sigc::ptr_fun(&LegacyOutput::register_element),
	53	"0.01", "GPL", "sigrok", "libsigrokflow", "http://sigrok.org");
1060e9b5	54	#endif
45e6e688	55	#ifdef HAVE_LIBSIGROKDECODE
b1322000 UH	56	Gst::Plugin::register_static(GST_VERSION_MAJOR, GST_VERSION_MINOR,
	57	"sigrok_legacy_decoder",
	58	"Wrapper for protocol decoders using legacy libsigrokdecode APIs",
	59	sigc::ptr_fun(&LegacyDecoder::register_element),
	60	"0.01", "GPL", "sigrok", "libsigrokflow", "http://sigrok.org");
45e6e688	61	#endif
fa243f2c UH	62
fa243f2c UH	63	srf_initialized = true;
6d71d36a ML	64	}
6d71d36a ML	65
e2cfc0ef ML	66	Sink::Sink(GstBaseSink *gobj) :
e2cfc0ef ML	67	Gst::BaseSink(gobj)
4b7d782a ML	68	{
	69	}
	70
	71	Device::Device(GstElement *gobj) :
e2cfc0ef	72	Gst::Element(gobj)
4b7d782a ML	73	{
	74	}
	75
	76	CaptureDevice::CaptureDevice(GstElement *gobj) :
	77	Device(gobj)
	78	{
	79	}
	80
1060e9b5	81	#ifdef HAVE_LIBSIGROKCXX
6d71d36a ML	82	void LegacyCaptureDevice::class_init(Gst::ElementClass<LegacyCaptureDevice> *klass)
	83	{
	84	klass->set_metadata("sigrok legacy capture device",
	85	"Source", "Wrapper for capture devices using legacy libsigrok APIs",
	86	"Martin Ling");
	87
	88	klass->add_pad_template(Gst::PadTemplate::create(
	89	"src",
	90	Gst::PAD_SRC,
	91	Gst::PAD_ALWAYS,
	92	Gst::Caps::create_any()));
	93	}
	94
	95	bool LegacyCaptureDevice::register_element(Glib::RefPtr<Gst::Plugin> plugin)
	96	{
	97	Gst::ElementFactory::register_element(plugin, "sigrok_legacy_capture_device",
	98	0, Gst::register_mm_type<LegacyCaptureDevice>(
	99	"sigrok_legacy_capture_device"));
	100	return true;
	101	}
	102
	103	LegacyCaptureDevice::LegacyCaptureDevice(GstElement *gobj) :
	104	Glib::ObjectBase(typeid(LegacyCaptureDevice)),
	105	CaptureDevice(gobj)
	106	{
	107	add_pad(_src_pad = Gst::Pad::create(get_pad_template("src"), "src"));
b903bb0a UH	108	}
b903bb0a UH	109
64b0db03 ML	110	Glib::RefPtr<LegacyCaptureDevice>LegacyCaptureDevice::create(
64b0db03 ML	111	shared_ptr<sigrok::HardwareDevice> libsigrok_device)
f7363af1	112	{
64b0db03	113	auto element = Gst::ElementFactory::create_element("sigrok_legacy_capture_device");
d75c9a6a ML	114	if (!element)
d75c9a6a ML	115	throw runtime_error("Failed to create element - plugin not registered?");
64b0db03	116	auto device = Glib::RefPtr<LegacyCaptureDevice>::cast_static(element);
64b0db03 ML	117	device->_libsigrok_device = libsigrok_device;
64b0db03 ML	118	return device;
f7363af1 ML	119	}
f7363af1 ML	120
d03b3a98	121	shared_ptr<sigrok::HardwareDevice> LegacyCaptureDevice::libsigrok_device()
f7363af1	122	{
64b0db03	123	return _libsigrok_device;
f7363af1 ML	124	}
f7363af1 ML	125
d03b3a98 ML	126	Gst::StateChangeReturn LegacyCaptureDevice::change_state_vfunc(Gst::StateChange transition)
	127	{
	128	switch (transition)
	129	{
	130	case Gst::STATE_CHANGE_READY_TO_PAUSED:
	131	return Gst::StateChangeReturn::STATE_CHANGE_NO_PREROLL;
	132	case Gst::STATE_CHANGE_PAUSED_TO_PLAYING:
d03b3a98 ML	133	_task = Gst::Task::create(std::bind(&LegacyCaptureDevice::_run, this));
	134	_task->set_lock(_mutex);
	135	_src_pad->set_active(true);
	136	_task->start();
	137	return Gst::STATE_CHANGE_SUCCESS;
	138	default:
	139	return Gst::STATE_CHANGE_SUCCESS;
	140	}
	141	}
	142
	143	void LegacyCaptureDevice::_datafeed_callback(
	144	shared_ptr<sigrok::Device> device,
	145	shared_ptr<sigrok::Packet> packet)
	146	{
	147	(void) device;
	148	switch (packet->type()->id()) {
	149	case SR_DF_LOGIC:
	150	{
	151	auto logic = static_pointer_cast<sigrok::Logic>(packet->payload());
	152	auto mem = Gst::Memory::create(
	153	Gst::MEMORY_FLAG_READONLY,
	154	logic->data_pointer(),
	155	logic->data_length(),
	156	0,
	157	logic->data_length());
	158	auto buf = Gst::Buffer::create();
	159	buf->append_memory(move(mem));
	160	_src_pad->push(move(buf));
	161	break;
	162	}
	163	case SR_DF_END:
	164	_session->stop();
	165	_src_pad->push_event(Gst::EventEos::create());
	166	break;
	167	default:
	168	break;
	169	}
	170	}
	171
	172	void LegacyCaptureDevice::_run()
	173	{
64b0db03 ML	174	_session = _libsigrok_device->driver()->parent()->create_session();
64b0db03 ML	175	_session->add_device(_libsigrok_device);
d03b3a98 ML	176	_session->add_datafeed_callback(bind(&LegacyCaptureDevice::_datafeed_callback, this, _1, _2));
	177	_session->start();
	178	_session->run();
	179	_task->stop();
	180	}
	181
92d521e7 ML	182	void LegacyInput::class_init(Gst::ElementClass<LegacyInput> *klass)
	183	{
	184	klass->set_metadata("sigrok legacy input",
	185	"Transform", "Wrapper for inputs using legacy libsigrok APIs",
	186	"Martin Ling");
	187
	188	klass->add_pad_template(Gst::PadTemplate::create(
	189	"sink",
	190	Gst::PAD_SINK,
	191	Gst::PAD_ALWAYS,
	192	Gst::Caps::create_any()));
	193
	194	klass->add_pad_template(Gst::PadTemplate::create(
	195	"src",
	196	Gst::PAD_SRC,
	197	Gst::PAD_ALWAYS,
	198	Gst::Caps::create_any()));
	199	}
	200
	201	bool LegacyInput::register_element(Glib::RefPtr<Gst::Plugin> plugin)
	202	{
	203	Gst::ElementFactory::register_element(plugin, "sigrok_legacy_input",
	204	0, Gst::register_mm_type<LegacyInput>(
	205	"sigrok_legacy_input"));
	206	return true;
	207	}
	208
	209	LegacyInput::LegacyInput(GstElement *gobj) :
	210	Glib::ObjectBase(typeid(LegacyInput)),
	211	Gst::Element(gobj)
	212	{
	213	add_pad(_sink_pad = Gst::Pad::create(get_pad_template("sink"), "sink"));
	214	add_pad(_src_pad = Gst::Pad::create(get_pad_template("src"), "src"));
	215	_sink_pad->set_chain_function(sigc::mem_fun(*this, &LegacyInput::chain));
	216	}
	217
	218	Glib::RefPtr<LegacyInput> LegacyInput::create(
	219	shared_ptr<sigrok::InputFormat> libsigrok_input_format,
	220	map<string, Glib::VariantBase> options)
	221	{
	222	auto element = Gst::ElementFactory::create_element("sigrok_legacy_input");
	223	if (!element)
	224	throw runtime_error("Failed to create element - plugin not registered?");
	225	auto input = Glib::RefPtr<LegacyInput>::cast_static(element);
	226	input->_libsigrok_input_format = libsigrok_input_format;
	227	input->_options = options;
	228	return input;
	229	}
	230
	231	bool LegacyInput::start_vfunc()
	232	{
	233	_libsigrok_input = _libsigrok_input_format->create_input(_options);
	234	auto context = _libsigrok_input_format->parent();
	235	_session = context->create_session();
	236	_session->add_device(_libsigrok_input->device());
	237	_session->add_datafeed_callback(bind(&LegacyInput::_datafeed_callback, this, _1, _2));
	238	_session->start();
	239	return true;
	240	}
	241
	242	void LegacyInput::_datafeed_callback(
	243	shared_ptr<sigrok::Device> device,
	244	shared_ptr<sigrok::Packet> packet)
	245	{
246	(void) device;
247	switch (packet->type()->id()) {
248	case SR_DF_LOGIC:
249	{
250	auto logic = static_pointer_cast<sigrok::Logic>(packet->payload());
251	auto mem = Gst::Memory::create(
252	Gst::MEMORY_FLAG_READONLY,
253	logic->data_pointer(),
254	logic->data_length(),
255	0,
256	logic->data_length());
257	auto buf = Gst::Buffer::create();
258	buf->append_memory(move(mem));
259	_src_pad->push(move(buf));
260	break;
261	}
262	case SR_DF_END:
263	_session->stop();
264	_src_pad->push_event(Gst::EventEos::create());
265	break;
266	default:
267	break;
268	}
269	}
270
271	Gst::FlowReturn LegacyInput::chain(const Glib::RefPtr<Gst::Pad> &,
272	const Glib::RefPtr<Gst::Buffer> &buf)
273	{
274	Gst::MapInfo info;
275	buf->map(info, Gst::MAP_READ);
276	_libsigrok_input->send(info.get_data(), info.get_size());
277	buf->unmap(info);
278	return Gst::FLOW_OK;
279	}
280
281	bool LegacyInput::stop_vfunc()
282	{
283	_libsigrok_input->end();
284	return true;
285	}
286
e2cfc0ef ML	287	void LegacyOutput::class_init(Gst::ElementClass<LegacyOutput> *klass)
	288	{
	289	klass->set_metadata("sigrok legacy output",
	290	"Sink", "Wrapper for outputs using legacy libsigrok APIs",
	291	"Martin Ling");
	292
	293	klass->add_pad_template(Gst::PadTemplate::create(
	294	"sink",
	295	Gst::PAD_SINK,
	296	Gst::PAD_ALWAYS,
	297	Gst::Caps::create_any()));
	298	}
	299
	300	bool LegacyOutput::register_element(Glib::RefPtr<Gst::Plugin> plugin)
	301	{
	302	Gst::ElementFactory::register_element(plugin, "sigrok_legacy_output",
	303	0, Gst::register_mm_type<LegacyOutput>(
	304	"sigrok_legacy_output"));
	305	return true;
	306	}
	307
	308	LegacyOutput::LegacyOutput(GstBaseSink *gobj) :
	309	Glib::ObjectBase(typeid(LegacyOutput)),
	310	Sink(gobj)
	311	{
e2cfc0ef ML	312	}
	313
	314	Glib::RefPtr<LegacyOutput>LegacyOutput::create(
726122c2 ML	315	shared_ptr<sigrok::OutputFormat> libsigrok_output_format,
	316	shared_ptr<sigrok::Device> libsigrok_device,
	317	map<string, Glib::VariantBase> options)
e2cfc0ef ML	318	{
	319	auto element = Gst::ElementFactory::create_element("sigrok_legacy_output");
	320	if (!element)
	321	throw runtime_error("Failed to create element - plugin not registered?");
	322	auto output = Glib::RefPtr<LegacyOutput>::cast_static(element);
726122c2 ML	323	output->_libsigrok_output_format = libsigrok_output_format;
	324	output->_libsigrok_device = libsigrok_device;
	325	output->_options = options;
e2cfc0ef ML	326	return output;
	327	}
	328
726122c2	329	bool LegacyOutput::start_vfunc()
e2cfc0ef	330	{
726122c2 ML	331	_libsigrok_output = _libsigrok_output_format->create_output(
	332	_libsigrok_device, _options);
	333	return true;
e2cfc0ef ML	334	}
	335
	336	Gst::FlowReturn LegacyOutput::render_vfunc(const Glib::RefPtr<Gst::Buffer> &buffer)
	337	{
	338	Gst::MapInfo info;
	339	buffer->map(info, Gst::MAP_READ);
726122c2	340	auto context = _libsigrok_output_format->parent();
e2cfc0ef ML	341	auto packet = context->create_logic_packet(
	342	info.get_data(), info.get_size(), 2);
	343	auto result = _libsigrok_output->receive(packet);
	344	cout << result;
	345	buffer->unmap(info);
	346	return Gst::FLOW_OK;
	347	}
	348
	349	bool LegacyOutput::stop_vfunc()
	350	{
726122c2	351	auto context = _libsigrok_output_format->parent();
e2cfc0ef ML	352	auto end_packet = context->create_end_packet();
	353	auto result = _libsigrok_output->receive(end_packet);
	354	cout << result;
	355	return true;
	356	}
1060e9b5	357	#endif
e2cfc0ef	358
45e6e688	359	#ifdef HAVE_LIBSIGROKDECODE
b1322000 UH	360	void LegacyDecoder::class_init(Gst::ElementClass<LegacyDecoder> *klass)
	361	{
	362	klass->set_metadata("sigrok legacy decoder",
	363	"Sink", "Wrapper for protocol decoders using legacy libsigrokdecode APIs",
	364	"Uwe Hermann");
	365
	366	klass->add_pad_template(Gst::PadTemplate::create(
	367	"sink",
	368	Gst::PAD_SINK,
	369	Gst::PAD_ALWAYS,
	370	Gst::Caps::create_any()));
	371	}
	372
	373	bool LegacyDecoder::register_element(Glib::RefPtr<Gst::Plugin> plugin)
	374	{
	375	Gst::ElementFactory::register_element(plugin, "sigrok_legacy_decoder",
	376	0, Gst::register_mm_type<LegacyDecoder>(
	377	"sigrok_legacy_decoder"));
	378	return true;
	379	}
	380
	381	LegacyDecoder::LegacyDecoder(GstBaseSink *gobj) :
	382	Glib::ObjectBase(typeid(LegacyDecoder)),
	383	Sink(gobj)
	384	{
	385	}
	386
	387	Glib::RefPtr<LegacyDecoder>LegacyDecoder::create(
	388	struct srd_session *libsigrokdecode_session, uint64_t unitsize)
	389	{
	390	auto element = Gst::ElementFactory::create_element("sigrok_legacy_decoder");
	391	if (!element)
	392	throw runtime_error("Failed to create element - plugin not registered?");
	393	auto decoder = Glib::RefPtr<LegacyDecoder>::cast_static(element);
	394	decoder->_session = libsigrokdecode_session;
	395	decoder->_unitsize = unitsize;
	396	return decoder;
	397	}
	398
	399	struct srd_session *LegacyDecoder::libsigrokdecode_session()
	400	{
	401	return _session;
	402	}
	403
	404	Gst::FlowReturn LegacyDecoder::render_vfunc(const Glib::RefPtr<Gst::Buffer> &buffer)
	405	{
	406	Gst::MapInfo info;
	407	buffer->map(info, Gst::MAP_READ);
	408	uint64_t num_samples = info.get_size() / _unitsize;
	409	srd_session_send(_session, _abs_ss, _abs_ss + num_samples,
	410	info.get_data(), info.get_size(), _unitsize);
	411	_abs_ss += num_samples;
	412	buffer->unmap(info);
	413	return Gst::FLOW_OK;
	414	}
	415
	416	bool LegacyDecoder::start_vfunc()
	417	{
	418	_abs_ss = 0;
	419	srd_session_start(_session);
	420	return true;
	421	}
	422
	423	bool LegacyDecoder::stop_vfunc()
424	{
425	srd_session_terminate_reset(_session);
426	return true;
427	}
45e6e688	428	#endif
b1322000	429
b903bb0a	430	}