diff options
Diffstat (limited to 'intern/audaspace/SDL/AUD_SDLMixer.cpp')
-rw-r--r-- | intern/audaspace/SDL/AUD_SDLMixer.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/intern/audaspace/SDL/AUD_SDLMixer.cpp b/intern/audaspace/SDL/AUD_SDLMixer.cpp new file mode 100644 index 00000000000..cacc0c7063c --- /dev/null +++ b/intern/audaspace/SDL/AUD_SDLMixer.cpp @@ -0,0 +1,83 @@ +/* + * $Id$ + * + * ***** BEGIN LGPL LICENSE BLOCK ***** + * + * Copyright 2009 Jörg Hermann Müller + * + * This file is part of AudaSpace. + * + * AudaSpace is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * AudaSpace 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with AudaSpace. If not, see <http://www.gnu.org/licenses/>. + * + * ***** END LGPL LICENSE BLOCK ***** + */ + +#include "AUD_SDLMixer.h" +#include "AUD_SDLMixerFactory.h" + +#include <SDL.h> + +AUD_SDLMixer::AUD_SDLMixer() +{ + m_factory = NULL; +} + +AUD_SDLMixer::~AUD_SDLMixer() +{ + if(m_factory) + { + delete m_factory; AUD_DELETE("factory") + } +} + +AUD_IReader* AUD_SDLMixer::prepare(AUD_IReader* reader) +{ + m_factory->setReader(reader); + return m_factory->createReader(); +} + +void AUD_SDLMixer::setSpecs(AUD_Specs specs) +{ + m_samplesize = AUD_SAMPLE_SIZE(specs); + if(m_factory) + { + delete m_factory; AUD_DELETE("factory") + } + m_factory = new AUD_SDLMixerFactory(specs); AUD_NEW("factory") +} + +void AUD_SDLMixer::add(sample_t* buffer, AUD_Specs specs, int length, + float volume) +{ + AUD_SDLMixerBuffer buf; + buf.buffer = buffer; + buf.length = length; + buf.volume = volume; + m_buffers.push_back(buf); +} + +void AUD_SDLMixer::superpose(sample_t* buffer, int length, float volume) +{ + AUD_SDLMixerBuffer buf; + + while(!m_buffers.empty()) + { + buf = m_buffers.front(); + m_buffers.pop_front(); + SDL_MixAudio((Uint8*)buffer, + (Uint8*)buf.buffer, + buf.length * m_samplesize, + (int)(SDL_MIX_MAXVOLUME * volume * buf.volume)); + } +} |