Initial community commit

Src/external_dependencies/openmpt-trunk/mptrack/Autotune.h

@@ -0,0 +1,81 @@
+/*
+ * Autotune.h
+ * ----------
+ * Purpose: Class for tuning a sample to a given base note automatically.
+ * Notes  : (currently none)
+ * Authors: OpenMPT Devs
+ * The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
+ */
+
+
+#pragma once
+
+#include "openmpt/all/BuildSettings.hpp"
+
+#include "../soundlib/Snd_defs.h"
+#include "resource.h"
+
+
+OPENMPT_NAMESPACE_BEGIN
+
+
+struct ModSample;
+
+
+class Autotune
+{
+protected:
+	ModSample &m_sample;
+	MODTYPE m_modType;
+
+	SmpLength m_selectionStart, m_selectionEnd;
+
+	int16 *m_sampleData = nullptr;
+	SmpLength m_sampleLength = 0;
+
+public:
+	Autotune(ModSample &smp, MODTYPE type, SmpLength selStart, SmpLength selEnd) : m_sample(smp), m_modType(type), m_selectionStart(selStart), m_selectionEnd(selEnd)
+	{ };
+
+	~Autotune()
+	{
+		delete[] m_sampleData;
+	}
+
+	bool CanApply() const;
+	bool Apply(double pitchReference, int targetNote);
+
+protected:
+
+	template <class T>
+	void CopySamples(const T* origSample, SmpLength sampleLoopStart, SmpLength sampleLoopEnd);
+
+	bool PrepareSample(SmpLength maxShift);
+
+};
+
+
+class CAutotuneDlg : public CDialog
+{
+protected:
+	static int m_pitchReference;	// Pitch reference (440Hz by default)
+	static int m_targetNote;		// Note which the sample should be tuned to (C by default)
+
+	CComboBox m_CbnNoteBox;
+
+public:
+	CAutotuneDlg(CWnd *parent) : CDialog(IDD_AUTOTUNE, parent)
+	{ };
+
+	int GetPitchReference() const { return m_pitchReference; }
+	int GetTargetNote() const { return m_targetNote; }
+
+protected:
+	BOOL OnInitDialog() override;
+	void OnOK() override;
+	void DoDataExchange(CDataExchange* pDX) override;
+
+};
+
+
+OPENMPT_NAMESPACE_END