/* ScummVM - Graphic Adventure Engine * * ScummVM is the legal property of its developers, whose names * are too numerous to list here. Please refer to the COPYRIGHT * file distributed with this source distribution. * * 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 2 * 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, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * */ #ifndef TITANIC_AUDIO_BUFFER_H #define TITANIC_AUDIO_BUFFER_H #include "common/array.h" #include "common/mutex.h" namespace Titanic { class CAudioBuffer { private: Common::Mutex _mutex; Common::Array _data; int16 *_frontP, *_backP; /** * Reclaims any space at the start of the array resulting from * having read values off the font */ void compact(); public: bool _finished; public: CAudioBuffer(int maxSize); /** * Resets the audio buffer */ void reset(); /** * Returns true if the buffer is empty */ bool empty() const { return _data.empty(); } /** * Returns the number of 16-bit entries in the buffer */ int size() const { return _backP - _frontP; } /** * Returns true if the buffer is full */ bool full() const { return (_backP - _frontP) == (int)_data.size(); } /** * Returns the number of entries free in the buffer */ int freeSize(); /** * Adds a value to the buffer */ void push(int16 value); /** * Adds a value to the buffer */ void push(int16 *values, int count); /** * Removes a value from the buffer */ int16 pop(); /** * Enters a critical section */ void enterCriticalSection(); /** * Leave a critical section */ void leaveCriticalSection(); }; } // End of namespace Titanic #endif /* TITANIC_AUDIO_BUFFER_H */