95 lines
2.4 KiB
C++
95 lines
2.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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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 3 of the License, or
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* (at your option) any later version.
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*
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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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*
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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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*/
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#ifndef NUVIE_SOUND_MIXER_DECODER_ADLIB_SFX_STREAM_H
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#define NUVIE_SOUND_MIXER_DECODER_ADLIB_SFX_STREAM_H
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#include "ultima/shared/std/string.h"
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#include "ultima/nuvie/sound/adplug/opl_class.h"
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#include "audio/audiostream.h"
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namespace Ultima {
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namespace Nuvie {
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class OriginFXAdLibDriver;
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class Configuration;
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using Std::string;
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class AdLibSfxStream : public Audio::RewindableAudioStream {
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public:
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AdLibSfxStream() {
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opl = nullptr;
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duration = 0;
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}
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AdLibSfxStream(const Configuration *cfg, int rate, uint8 channel, sint8 note, uint8 velocity, uint8 program_number, uint32 d);
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~AdLibSfxStream() override;
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int readBuffer(sint16 *buffer, const int numSamples) override;
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/** Is this a stereo stream? */
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bool isStereo() const override {
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return true;
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}
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/** Sample rate of the stream. */
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int getRate() const override {
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return opl->getRate();
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}
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bool rewind() override {
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return false;
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}
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/**
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* End of data reached? If this returns true, it means that at this
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* time there is no data available in the stream. However there may be
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* more data in the future.
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* This is used by e.g. a rate converter to decide whether to keep on
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* converting data or stop.
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*/
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bool endOfData() const override {
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if (total_samples_played >= duration) {
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return true;
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}
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return false;
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}
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uint32 getLengthInMsec() {
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return (uint32)(duration / (getRate() / 1000.0f));
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}
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protected:
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OplClass *opl;
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OriginFXAdLibDriver *driver;
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uint32 duration;
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int interrupt_samples_left;
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int interrupt_rate;
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uint32 total_samples_played;
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};
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} // End of namespace Nuvie
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} // End of namespace Ultima
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#endif
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