154 lines
4.1 KiB
C++
154 lines
4.1 KiB
C++
/******************************************************************************
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Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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/* Useful C++ classes and bindings for base obs data */
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#pragma once
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#include "obs.h"
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/* RAII wrappers */
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template<typename T, void addref(T), void release(T)>
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class OBSRef {
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T val;
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inline OBSRef &Replace(T valIn)
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{
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addref(valIn);
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release(val);
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val = valIn;
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return *this;
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}
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public:
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inline OBSRef() : val(nullptr) {}
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inline OBSRef(T val_) : val(val_) {addref(val);}
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inline OBSRef(const OBSRef &ref) : val(ref.val) {addref(val);}
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inline OBSRef(OBSRef &&ref) : val(ref.val) {ref.val = nullptr;}
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inline ~OBSRef() {release(val);}
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inline OBSRef &operator=(T valIn) {return Replace(valIn);}
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inline OBSRef &operator=(const OBSRef &ref) {return Replace(ref.val);}
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inline OBSRef &operator=(OBSRef &&ref)
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{
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if (this != &ref) {
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val = ref.val;
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ref.val = nullptr;
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}
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return *this;
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}
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inline operator T() const {return val;}
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inline bool operator==(T p) const {return val == p;}
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inline bool operator!=(T p) const {return val != p;}
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};
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using OBSSource = OBSRef<obs_source_t*, obs_source_addref, obs_source_release>;
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using OBSScene = OBSRef<obs_scene_t*, obs_scene_addref, obs_scene_release>;
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using OBSSceneItem = OBSRef<obs_sceneitem_t*, obs_sceneitem_addref,
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obs_sceneitem_release>;
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using OBSData = OBSRef<obs_data_t*, obs_data_addref, obs_data_release>;
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using OBSDataArray = OBSRef<obs_data_array_t*, obs_data_array_addref,
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obs_data_array_release>;
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/* objects that are not meant to be instanced */
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template<typename T, void destroy(T)> class OBSObj {
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T obj;
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public:
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inline OBSObj() : obj(nullptr) {}
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inline OBSObj(T obj_) : obj(obj_) {}
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inline ~OBSObj() {destroy(obj);}
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inline OBSObj &operator=(T obj_)
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{
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if (obj_ != obj)
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destroy(obj);
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obj = obj_;
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return *this;
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}
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inline operator T() const {return obj;}
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inline bool operator==(T p) const {return obj == p;}
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inline bool operator!=(T p) const {return obj != p;}
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};
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using OBSDisplay = OBSObj<obs_display_t*, obs_display_destroy>;
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using OBSEncoder = OBSObj<obs_encoder_t*, obs_encoder_destroy>;
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using OBSView = OBSObj<obs_view_t*, obs_view_destroy>;
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using OBSOutput = OBSObj<obs_output_t*, obs_output_destroy>;
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/* signal handler connection */
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class OBSSignal {
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signal_handler_t *handler;
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const char *signal;
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signal_callback_t callback;
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void *param;
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public:
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inline OBSSignal()
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: handler (nullptr),
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signal (nullptr),
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callback (nullptr),
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param (nullptr)
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{}
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inline OBSSignal(signal_handler_t *handler_,
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const char *signal_,
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signal_callback_t callback_,
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void *param_)
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: handler (handler_),
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signal (signal_),
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callback (callback_),
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param (param_)
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{
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signal_handler_connect(handler, signal, callback, param);
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}
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inline void Disconnect()
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{
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signal_handler_disconnect(handler, signal, callback, param);
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handler = nullptr;
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signal = nullptr;
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callback = nullptr;
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param = nullptr;
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}
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inline ~OBSSignal() {Disconnect();}
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inline void Connect(signal_handler_t *handler_,
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const char *signal_,
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signal_callback_t callback_,
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void *param_)
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{
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Disconnect();
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handler = handler_;
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signal = signal_;
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callback = callback_;
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param = param_;
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signal_handler_connect(handler, signal, callback, param);
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}
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};
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