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/* 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.
*
* $URL$
* $Id$
*
*/
/*
* This code is based on Broken Sword 2.5 engine
*
* Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
*
* Licensed under GNU GPL v2
*
*/
// -----------------------------------------------------------------------------
// Includes
// -----------------------------------------------------------------------------
#include "sword25/fmv/oggtheora/audiobuffer.h"
#include <windows.h>
#include <queue>
using namespace std;
// -----------------------------------------------------------------------------
struct BS_AudioBuffer::Impl
{
CRITICAL_SECTION CS;
queue<signed short> Buffer;
};
// -----------------------------------------------------------------------------
BS_AudioBuffer::BS_AudioBuffer() : t(new Impl())
{
InitializeCriticalSection(&t->CS);
}
// -----------------------------------------------------------------------------
BS_AudioBuffer::~BS_AudioBuffer()
{
DeleteCriticalSection(&t->CS);
delete t;
}
// -----------------------------------------------------------------------------
void BS_AudioBuffer::Push(signed short * SamplePtr, unsigned int SampleCount)
{
EnterCriticalSection(&t->CS);
signed short * SampleEndPtr = SamplePtr + SampleCount;
while (SamplePtr != SampleEndPtr) t->Buffer.push(*SamplePtr++);
LeaveCriticalSection(&t->CS);
}
// -----------------------------------------------------------------------------
unsigned int BS_AudioBuffer::Pop(signed short * SamplePtr, unsigned int SampleCount)
{
EnterCriticalSection(&t->CS);
unsigned int i = 0;
for (; i < SampleCount && !t->Buffer.empty(); ++i)
{
SamplePtr[i] = t->Buffer.front();
t->Buffer.pop();
}
LeaveCriticalSection(&t->CS);
return i;
}
// -----------------------------------------------------------------------------
unsigned int BS_AudioBuffer::Size() const
{
EnterCriticalSection(&t->CS);
unsigned int result = t->Buffer.size();
LeaveCriticalSection(&t->CS);
return result;
}
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