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62 lines
1.3 KiB
62 lines
1.3 KiB
3 years ago
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//
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// sysexfileloader.h
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//
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// See: https://github.com/asb2m10/dexed/blob/master/Documentation/sysex-format.txt
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//
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#ifndef _sysexfileloader_h
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#define _sysexfileloader_h
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#include <stdint.h>
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#include <string>
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#include <circle/macros.h>
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class CSysExFileLoader // Loader for DX7 .syx files
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{
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public:
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static const unsigned MaxVoiceBankID = 127; // TODO? 16383
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static const unsigned VoicesPerBank = 32;
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static const size_t SizePackedVoice = 128;
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static const size_t SizeSingleVoice = 156;
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struct TVoiceBank
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{
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uint8_t StatusStart; // 0xF0
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uint8_t CompanyID; // 0x43
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uint8_t SubStatus; // 0x00
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uint8_t Format; // 0x09
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uint8_t ByteCountMS; // 0x20
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uint8_t ByteCountLS; // 0x00
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uint8_t Voice[VoicesPerBank][SizePackedVoice];
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uint8_t Checksum;
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uint8_t StatusEnd; // 0xF7
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}
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PACKED;
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public:
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CSysExFileLoader (const char *pDirName = "/sysex");
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~CSysExFileLoader (void);
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void Load (void);
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void SelectVoiceBank (unsigned nBankID); // 0 .. 127
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void GetVoice (unsigned nVoiceID, // 0 .. 31
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uint8_t *pVoiceData); // returns unpacked format (156 bytes)
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private:
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static void DecodePackedVoice (const uint8_t *pPackedData, uint8_t *pDecodedData);
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private:
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std::string m_DirName;
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TVoiceBank *m_pVoiceBank[MaxVoiceBankID+1];
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unsigned m_nBankID;
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static uint8_t s_DefaultVoice[SizeSingleVoice];
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};
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#endif
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