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scx.h

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00001 /* ResidualVM - A 3D game interpreter
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00005  * file distributed with this source distribution.
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00007  * This program is free software; you can redistribute it and/or
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00015  * GNU General Public License for more details.
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00022 
00023 #ifndef GRIM_SCX_H
00024 #define GRIM_SCX_H
00025 
00026 namespace Common {
00027     class SeekableReadStream;
00028 }
00029 
00030 namespace Grim {
00031 
00032 // I've only ever seen up to two
00033 #define SCX_MAX_CHANNELS 2
00034 
00035 class SCXStream : public Audio::RewindableAudioStream {
00036 public:
00037     SCXStream(Common::SeekableReadStream *stream, const Audio::Timestamp *start, DisposeAfterUse::Flag disposeAfterUse);
00038     ~SCXStream();
00039 
00040     bool isStereo() const override { return _channels == 2; }
00041     bool endOfData() const override { return _xaStreams[0]->endOfData(); }
00042     int getRate() const override { return _rate; }
00043     int readBuffer(int16 *buffer, const int numSamples) override;
00044 
00045     bool rewind() override;
00046     Audio::Timestamp getPos() const;
00047 
00048 private:
00049     int _channels;
00050     int _rate;
00051     uint16 _blockSize;
00052 
00053     Common::SeekableReadStream *_fileStreams[SCX_MAX_CHANNELS];
00054     Audio::RewindableAudioStream *_xaStreams[SCX_MAX_CHANNELS];
00055 };
00056 
00065 SCXStream *makeSCXStream(
00066     Common::SeekableReadStream *stream,
00067     const Audio::Timestamp *start,
00068     DisposeAfterUse::Flag disposeAfterUse = DisposeAfterUse::YES);
00069 
00070 } // End of namespace Grim
00071 
00072 #endif


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