add RAII wrapper class for sources

obs/obs-wrappers.hpp

+/******************************************************************************
+    Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
+
+    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/>.
+******************************************************************************/
+
+#pragma once
+
+class OBSSource {
+	obs_source_t source;
+
+public:
+	inline OBSSource(obs_source_t source) : source(source) {}
+	inline ~OBSSource() {obs_source_release(source);}
+
+	inline operator obs_source_t() {return source;}
+
+	inline bool operator==(obs_source_t p) const {return source == p;}
+	inline bool operator!=(obs_source_t p) const {return source != p;}
+};
+
+class OBSSourceRef {
+	obs_source_t source;
+
+public:
+	inline OBSSourceRef(obs_source_t source) : source(source)
+	{
+		obs_source_addref(source);
+	}
+
+	inline OBSSourceRef(const OBSSourceRef &ref) : source(ref.source)
+	{
+		obs_source_addref(source);
+	}
+
+	inline OBSSourceRef(OBSSourceRef &&ref) : source(ref.source)
+	{
+		ref.source = NULL;
+	}
+
+	inline ~OBSSourceRef() {obs_source_release(source);}
+
+	inline OBSSourceRef &operator=(obs_source_t sourceIn)
+	{
+		obs_source_addref(sourceIn);
+		obs_source_release(source);
+		source = sourceIn;
+		return *this;
+	}
+
+	inline OBSSourceRef &operator=(const OBSSourceRef &ref)
+	{
+		obs_source_addref(ref.source);
+		obs_source_release(source);
+		source = ref.source;
+		return *this;
+	}
+
+	inline OBSSourceRef &operator=(OBSSourceRef &&ref)
+	{
+		if (this != &ref) {
+			source = ref.source;
+			ref.source = NULL;
+		}
+
+		return *this;
+	}
+
+	inline operator obs_source_t() const {return source;}
+
+	inline bool operator==(obs_source_t p) const {return source == p;}
+	inline bool operator!=(obs_source_t p) const {return source != p;}
+};