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76 lines
2 KiB
C
76 lines
2 KiB
C
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/*
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* modsmp_ctrl.h
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* -------------
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* Purpose: Basic sample editing code
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* Notes : (currently none)
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* Authors: OpenMPT Devs
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* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
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*/
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#pragma once
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#include "openmpt/all/BuildSettings.hpp"
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#include "Snd_defs.h"
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OPENMPT_NAMESPACE_BEGIN
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class CSoundFile;
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struct ModSample;
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struct ModChannel;
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namespace ctrlSmp
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{
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// Replaces sample in 'smp' with given sample and frees the old sample.
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void ReplaceSample(ModSample &smp, void *pNewSample, const SmpLength newLength, CSoundFile &sndFile);
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// Propagate loop point changes to player
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bool UpdateLoopPoints(const ModSample &smp, CSoundFile &sndFile);
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// Reverse sample data
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bool ReverseSample(ModSample &smp, SmpLength start, SmpLength end, CSoundFile &sndFile);
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// Invert sample data (flip by 180 degrees)
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bool InvertSample(ModSample &smp, SmpLength start, SmpLength end, CSoundFile &sndFile);
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// Crossfade sample data to create smooth loops
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bool XFadeSample(ModSample &smp, SmpLength fadeLength, int fadeLaw, bool afterloopFade, bool useSustainLoop, CSoundFile &sndFile);
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enum StereoToMonoMode
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{
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mixChannels,
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onlyLeft,
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onlyRight,
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splitSample,
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};
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// Convert a sample with any number of channels to mono
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bool ConvertToMono(ModSample &smp, CSoundFile &sndFile, StereoToMonoMode conversionMode);
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// Converts a stereo sample into two mono samples. Source sample will not be deleted.
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// Either of the two target samples may be identical to the source sample.
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bool SplitStereo(const ModSample &source, ModSample &left, ModSample &right, CSoundFile &sndFile);
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// Convert a mono sample to stereo
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bool ConvertToStereo(ModSample &smp, CSoundFile &sndFile);
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} // Namespace ctrlSmp
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namespace ctrlChn
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{
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// Replaces sample from sound channels by given sample.
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void ReplaceSample( CSoundFile &sndFile,
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const ModSample &sample,
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const void * const pNewSample,
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const SmpLength newLength,
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FlagSet<ChannelFlags> setFlags,
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FlagSet<ChannelFlags> resetFlags);
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} // namespace ctrlChn
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OPENMPT_NAMESPACE_END
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