Merge pull request #5 from WinampDesktop/community

Merge to main

1 files changed, 159 insertions, 0 deletions

diff --git a/Src/external_dependencies/openmpt-trunk/soundlib/Dlsbank.h b/Src/external_dependencies/openmpt-trunk/soundlib/Dlsbank.h
new file mode 100644
index 00000000..d9c3fde2
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/soundlib/Dlsbank.h
@@ -0,0 +1,159 @@
+/*
+ * DLSBank.h
+ * ---------
+ * Purpose: Sound bank loading.
+ * Notes  : Supported sound bank types: DLS (including embedded DLS in MSS & RMI), SF2
+ * Authors: Olivier Lapicque
+ *          OpenMPT Devs
+ * The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
+ */
+
+
+#pragma once
+
+#include "openmpt/all/BuildSettings.hpp"
+
+OPENMPT_NAMESPACE_BEGIN
+class CSoundFile;
+OPENMPT_NAMESPACE_END
+#include "Snd_defs.h"
+
+OPENMPT_NAMESPACE_BEGIN
+
+#ifdef MODPLUG_TRACKER
+
+
+struct DLSREGION
+{
+	uint32 ulLoopStart;
+	uint32 ulLoopEnd;
+	uint16 nWaveLink;
+	uint16 uPercEnv;
+	uint16 usVolume;     // 0..256
+	uint16 fuOptions;    // flags + key group
+	int16 sFineTune;     // +128 = +1 semitone
+	int16 panning = -1;  // -1= unset (DLS), otherwise 0...256
+	uint8  uKeyMin;
+	uint8  uKeyMax;
+	uint8  uUnityNote;
+	uint8  tuning = 100;
+
+	constexpr bool IsDummy() const noexcept { return uKeyMin == 0xFF || nWaveLink == Util::MaxValueOfType(nWaveLink); }
+};
+
+struct DLSENVELOPE
+{
+	// Volume Envelope
+	uint16 wVolAttack;       // Attack Time: 0-1000, 1 = 20ms (1/50s) -> [0-20s]
+	uint16 wVolDecay;        // Decay Time: 0-1000, 1 = 20ms (1/50s) -> [0-20s]
+	uint16 wVolRelease;      // Release Time: 0-1000, 1 = 20ms (1/50s) -> [0-20s]
+	uint8 nVolSustainLevel;  // Sustain Level: 0-128, 128=100%
+	uint8 nDefPan;           // Default Pan
+};
+
+// Special Bank bits
+#define F_INSTRUMENT_DRUMS		0x80000000
+
+struct DLSINSTRUMENT
+{
+	uint32 ulBank = 0, ulInstrument = 0;
+	uint32 nMelodicEnv = 0;
+	std::vector<DLSREGION> Regions;
+	char szName[32];
+	// SF2 stuff (DO NOT USE! -> used internally by the SF2 loader)
+	uint16 wPresetBagNdx = 0, wPresetBagNum = 0;
+};
+
+struct DLSSAMPLEEX
+{
+	char   szName[20];
+	uint32 dwLen;
+	uint32 dwStartloop;
+	uint32 dwEndloop;
+	uint32 dwSampleRate;
+	uint8  byOriginalPitch;
+	int8   chPitchCorrection;
+	bool   compressed = false;
+};
+
+
+#define SOUNDBANK_TYPE_INVALID	0
+#define SOUNDBANK_TYPE_DLS		0x01
+#define SOUNDBANK_TYPE_SF2		0x02
+
+struct SOUNDBANKINFO
+{
+	std::string szBankName,
+		szCopyRight,
+		szComments,
+		szEngineer,
+		szSoftware,		// ISFT: Software
+		szDescription;	// ISBJ: Subject
+};
+
+struct IFFCHUNK;
+struct SF2LoaderInfo;
+
+class CDLSBank
+{
+protected:
+	SOUNDBANKINFO m_BankInfo;
+	mpt::PathString m_szFileName;
+	size_t m_dwWavePoolOffset;
+	uint32 m_nType;
+	// DLS Information
+	uint32 m_nMaxWaveLink;
+	uint32 m_sf2version = 0;
+	std::vector<size_t> m_WaveForms;
+	std::vector<DLSINSTRUMENT> m_Instruments;
+	std::vector<DLSSAMPLEEX> m_SamplesEx;
+	std::vector<DLSENVELOPE> m_Envelopes;
+
+public:
+	CDLSBank();
+
+	bool operator==(const CDLSBank &other) const noexcept { return !mpt::PathString::CompareNoCase(m_szFileName, other.m_szFileName); }
+
+	static bool IsDLSBank(const mpt::PathString &filename);
+	static uint32 MakeMelodicCode(uint32 bank, uint32 instr) { return ((bank << 16) | (instr));}
+	static uint32 MakeDrumCode(uint32 rgn, uint32 instr) { return (0x80000000 | (rgn << 16) | (instr));}
+
+public:
+	bool Open(const mpt::PathString &filename);
+	bool Open(FileReader file);
+	mpt::PathString GetFileName() const { return m_szFileName; }
+	uint32 GetBankType() const { return m_nType; }
+	const SOUNDBANKINFO &GetBankInfo() const { return m_BankInfo; }
+
+public:
+	uint32 GetNumInstruments() const { return static_cast<uint32>(m_Instruments.size()); }
+	uint32 GetNumSamples() const { return static_cast<uint32>(m_WaveForms.size()); }
+	const DLSINSTRUMENT *GetInstrument(uint32 iIns) const { return iIns < m_Instruments.size() ? &m_Instruments[iIns] : nullptr; }
+	const DLSINSTRUMENT *FindInstrument(bool isDrum, uint32 bank = 0xFF, uint32 program = 0xFF, uint32 key = 0xFF, uint32 *pInsNo = nullptr) const;
+	bool FindAndExtract(CSoundFile &sndFile, const INSTRUMENTINDEX ins, const bool isDrum) const;
+	uint32 GetRegionFromKey(uint32 nIns, uint32 nKey) const;
+	bool ExtractWaveForm(uint32 nIns, uint32 nRgn, std::vector<uint8> &waveData, uint32 &length) const;
+	bool ExtractSample(CSoundFile &sndFile, SAMPLEINDEX nSample, uint32 nIns, uint32 nRgn, int transpose = 0) const;
+	bool ExtractInstrument(CSoundFile &sndFile, INSTRUMENTINDEX nInstr, uint32 nIns, uint32 nDrumRgn) const;
+	const char *GetRegionName(uint32 nIns, uint32 nRgn) const;
+	uint16 GetPanning(uint32 ins, uint32 region) const;
+
+// Internal Loader Functions
+protected:
+	bool UpdateInstrumentDefinition(DLSINSTRUMENT *pDlsIns, FileReader chunk);
+	bool UpdateSF2PresetData(SF2LoaderInfo &sf2info, const IFFCHUNK &header, FileReader &chunk);
+	bool ConvertSF2ToDLS(SF2LoaderInfo &sf2info);
+
+public:
+	// DLS Unit conversion
+	static int32 DLS32BitTimeCentsToMilliseconds(int32 lTimeCents);
+	static int32 DLS32BitRelativeGainToLinear(int32 lCentibels);	// 0dB = 0x10000
+	static int32 DLS32BitRelativeLinearToGain(int32 lGain);		// 0dB = 0x10000
+	static int32 DLSMidiVolumeToLinear(uint32 nMidiVolume);		// [0-127] -> [0-0x10000]
+};
+
+
+#endif // MODPLUG_TRACKER
+
+
+OPENMPT_NAMESPACE_END