Factor out legacy_capture_device.hpp.

[libsigrokflow.git] / include / libsigrokflow / legacy_capture_device.hpp

diff --git a/include/libsigrokflow/legacy_capture_device.hpp b/include/libsigrokflow/legacy_capture_device.hpp
new file mode 100644 (file)
index 0000000..03ff571
--- /dev/null
+++ b/include/libsigrokflow/legacy_capture_device.hpp
@@ -0,0 +1,76 @@
+/*
+ * 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/>.
+ */
+
+#ifndef LIBSIGROKFLOW_LEGACY_CAPTURE_DEVICE_HPP
+#define LIBSIGROKFLOW_LEGACY_CAPTURE_DEVICE_HPP
+
+/* Temporary workaround, will be dropped later. */
+#define HAVE_LIBSIGROKCXX 1
+
+#include <gstreamermm.h>
+#ifdef HAVE_LIBSIGROKCXX
+#include <libsigrokcxx/libsigrokcxx.hpp>
+#endif
+#include <libsigrokflow/main.hpp>
+
+namespace Srf
+{
+
+using namespace std;
+
+#ifdef HAVE_LIBSIGROKCXX
+class LegacyCaptureDevice :
+       public CaptureDevice
+{
+public:
+       /* Create from libsigrok device object. */
+       static Glib::RefPtr<LegacyCaptureDevice> create(
+               shared_ptr<sigrok::HardwareDevice> libsigrok_device);
+
+       /* Retrieve libsigrok device object. */
+       shared_ptr<sigrok::HardwareDevice> libsigrok_device();
+
+       /* Override state change. */
+       Gst::StateChangeReturn change_state_vfunc(Gst::StateChange transition) override;
+
+       /* Gst class init. */
+       static void class_init(Gst::ElementClass<LegacyCaptureDevice> *klass);
+
+       /* Register class with plugin. */
+       static bool register_element(Glib::RefPtr<Gst::Plugin> plugin);
+
+       /* Constructor used by element factory. */
+       explicit LegacyCaptureDevice(GstElement *gobj);
+
+private:
+       shared_ptr<sigrok::HardwareDevice> libsigrok_device_;
+       Glib::RefPtr<Gst::Pad> src_pad_;
+       Glib::Threads::RecMutex mutex_;
+       Glib::RefPtr<Gst::Task> task_;
+       shared_ptr<sigrok::Session> session_;
+
+       void datafeed_callback(shared_ptr<sigrok::Device> device,
+                       shared_ptr<sigrok::Packet> packet);
+       void run();
+};
+#endif
+
+}
+#endif