112 lines
3.5 KiB
C++
Executable File
112 lines
3.5 KiB
C++
Executable File
//
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// KRAudioSample.h
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// Kraken Engine
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//
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// Copyright 2022 Kearwood Gilbert. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other materials
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// provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// The views and conclusions contained in the software and documentation are those of the
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// authors and should not be interpreted as representing official policies, either expressed
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// or implied, of Kearwood Gilbert.
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//
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#pragma once
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#include "KREngine-common.h"
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#include "KRContextObject.h"
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#include "KRDataBlock.h"
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#include "KRResource.h"
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class KRAudioBuffer;
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class KRAudioSample : public KRResource
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{
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public:
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KRAudioSample(KRContext& context, std::string name, std::string extension);
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KRAudioSample(KRContext& context, std::string name, std::string extension, KRDataBlock* data);
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virtual ~KRAudioSample();
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virtual std::string getExtension();
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virtual bool save(KRDataBlock& data);
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float getDuration();
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KRAudioBuffer* getBuffer(int index);
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int getBufferCount();
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// Siren audio engine interface
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int getChannelCount();
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__int64_t getFrameCount();
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float sample(int frame_offset, int frame_rate, int channel);
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void sample(__int64_t frame_offset, int frame_count, int channel, float* buffer, float amplitude, bool loop);
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void _endFrame();
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private:
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__int64_t m_last_frame_used;
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std::string m_extension;
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KRDataBlock* m_pData;
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#ifdef __APPLE__
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// Apple Audio Toolbox
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AudioFileID m_audio_file_id;
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ExtAudioFileRef m_fileRef;
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static OSStatus ReadProc( // AudioFile_ReadProc
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void* inClientData,
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SInt64 inPosition,
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UInt32 requestCount,
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void* buffer,
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UInt32* actualCount);
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static OSStatus WriteProc( // AudioFile_WriteProc
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void* inClientData,
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SInt64 inPosition,
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UInt32 requestCount,
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const void* buffer,
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UInt32* actualCount);
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static SInt64 GetSizeProc( // AudioFile_GetSizeProc
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void* inClientData);
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static OSStatus SetSizeProc( // AudioFile_SetSizeProc
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void* inClientData,
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SInt64 inSize);
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#endif
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int m_bufferCount;
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__int64_t m_totalFrames;
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int m_frameRate;
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int m_bytesPerFrame;
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int m_channelsPerFrame;
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void openFile();
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void closeFile();
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void loadInfo();
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static void PopulateBuffer(KRAudioSample* sound, int index, void* data);
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};
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