Add libzita-resampler as lib

This simplifies x-compiling and x-platform builds as well
allows to statically link, if needed.

5 files changed, 329 insertions, 0 deletions

diff --git a/libs/zita-resampler/zita-resampler/cresampler.h b/libs/zita-resampler/zita-resampler/cresampler.h
new file mode 100644
index 0000000000..f5e2a96fb1
--- /dev/null
+++ b/libs/zita-resampler/zita-resampler/cresampler.h
@@ -0,0 +1,66 @@
+// ----------------------------------------------------------------------------
+//
+//  Copyright (C) 2013 Fons Adriaensen <fons@linuxaudio.org>
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation; either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+
+
+#ifndef _ZITA_CRESAMPLER_H_
+#define _ZITA_CRESAMPLER_H_
+
+#include "zita-resampler/zresampler_visibility.h"
+
+namespace ArdourZita {
+
+class LIBZRESAMPLER_API CResampler
+{
+public:
+	CResampler (void);
+	~CResampler (void);
+
+	int  setup (double ratio, unsigned int nchan);
+
+	void   clear (void);
+	int    reset (void);
+	int    nchan (void) const { return _nchan; }
+	int    inpsize (void) const;
+	double inpdist (void) const;
+	int    process (void);
+
+	void set_ratio (double r);
+	void set_phase (double p);
+
+	unsigned int         inp_count;
+	unsigned int         out_count;
+	float               *inp_data;
+	float               *out_data;
+	void                *inp_list;
+	void                *out_list;
+
+private:
+	unsigned int         _nchan;
+	unsigned int         _inmax;
+	unsigned int         _index;
+	unsigned int         _nread;
+	unsigned int         _nzero;
+	double               _phase;
+	double               _pstep;
+	float               *_buff;
+};
+
+};
+
+#endif
diff --git a/libs/zita-resampler/zita-resampler/resampler-table.h b/libs/zita-resampler/zita-resampler/resampler-table.h
new file mode 100644
index 0000000000..6fcc0a37fa
--- /dev/null
+++ b/libs/zita-resampler/zita-resampler/resampler-table.h
@@ -0,0 +1,69 @@
+// ----------------------------------------------------------------------------
+//
+//  Copyright (C) 2006-2012 Fons Adriaensen <fons@linuxaudio.org>
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation; either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+
+
+#ifndef _ZITA_RESAMPLER_TABLE_H_
+#define _ZITA_RESAMPLER_TABLE_H_
+
+#include <pthread.h>
+#include "zita-resampler/zresampler_visibility.h"
+
+namespace ArdourZita {
+
+class LIBZRESAMPLER_API Resampler_mutex
+{
+private:
+
+	friend class Resampler_table;
+
+	Resampler_mutex (void) { pthread_mutex_init (&_mutex, 0); }
+	~Resampler_mutex (void) { pthread_mutex_destroy (&_mutex); }
+	void lock (void) { pthread_mutex_lock (&_mutex); }
+	void unlock (void) { pthread_mutex_unlock (&_mutex); }
+
+	pthread_mutex_t  _mutex;
+};
+
+
+class LIBZRESAMPLER_API Resampler_table
+{
+private:
+	Resampler_table (double fr, unsigned int hl, unsigned int np);
+	~Resampler_table (void);
+
+	friend class Resampler;
+	friend class VResampler;
+
+	Resampler_table     *_next;
+	unsigned int         _refc;
+	float               *_ctab;
+	double               _fr;
+	unsigned int         _hl;
+	unsigned int         _np;
+
+	static Resampler_table *create (double fr, unsigned int hl, unsigned int np);
+	static void destroy (Resampler_table *T);
+
+	static Resampler_table  *_list;
+	static Resampler_mutex   _mutex;
+};
+
+};
+
+#endif
diff --git a/libs/zita-resampler/zita-resampler/resampler.h b/libs/zita-resampler/zita-resampler/resampler.h
new file mode 100644
index 0000000000..713b98e36d
--- /dev/null
+++ b/libs/zita-resampler/zita-resampler/resampler.h
@@ -0,0 +1,78 @@
+// ----------------------------------------------------------------------------
+//
+//  Copyright (C) 2006-2012 Fons Adriaensen <fons@linuxaudio.org>
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation; either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+
+
+#ifndef _ZITA_RESAMPLER_H_
+#define _ZITA_RESAMPLER_H_
+
+#include "zita-resampler/zresampler_visibility.h"
+#include "zita-resampler/resampler-table.h"
+
+namespace ArdourZita {
+
+class LIBZRESAMPLER_API Resampler
+{
+
+public:
+
+	Resampler (void);
+	~Resampler (void);
+
+	int  setup (unsigned int fs_inp,
+	            unsigned int fs_out,
+	            unsigned int nchan,
+	            unsigned int hlen);
+
+	int  setup (unsigned int fs_inp,
+	            unsigned int fs_out,
+	            unsigned int nchan,
+	            unsigned int hlen,
+	            double       frel);
+
+	void   clear (void);
+	int    reset (void);
+	int    nchan (void) const { return _nchan; }
+	int    inpsize (void) const;
+	double inpdist (void) const;
+	int    process (void);
+
+	unsigned int         inp_count;
+	unsigned int         out_count;
+	float               *inp_data;
+	float               *out_data;
+	void                *inp_list;
+	void                *out_list;
+
+private:
+
+	Resampler_table     *_table;
+	unsigned int         _nchan;
+	unsigned int         _inmax;
+	unsigned int         _index;
+	unsigned int         _nread;
+	unsigned int         _nzero;
+	unsigned int         _phase;
+	unsigned int         _pstep;
+	float               *_buff;
+	void                *_dummy [8];
+};
+
+};
+
+#endif
diff --git a/libs/zita-resampler/zita-resampler/vresampler.h b/libs/zita-resampler/zita-resampler/vresampler.h
new file mode 100644
index 0000000000..056427dae0
--- /dev/null
+++ b/libs/zita-resampler/zita-resampler/vresampler.h
@@ -0,0 +1,84 @@
+// ----------------------------------------------------------------------------
+//
+//  Copyright (C) 2006-2012 Fons Adriaensen <fons@linuxaudio.org>
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation; either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+
+
+#ifndef _ZITA_VRESAMPLER_H_
+#define _ZITA_VRESAMPLER_H_
+
+#include "zita-resampler/zresampler_visibility.h"
+#include "zita-resampler/resampler-table.h"
+
+namespace ArdourZita {
+
+class LIBZRESAMPLER_API VResampler
+{
+public:
+	VResampler (void);
+	~VResampler (void);
+
+	int  setup (double       ratio,
+	            unsigned int nchan,
+	            unsigned int hlen);
+
+	int  setup (double       ratio,
+	            unsigned int nchan,
+	            unsigned int hlen,
+	            double       frel);
+
+	void   clear (void);
+	int    reset (void);
+	int    nchan (void) const { return _nchan; }
+	int    inpsize (void) const;
+	double inpdist (void) const;
+	int    process (void);
+
+	void set_phase (double p);
+	void set_rrfilt (double t);
+	void set_rratio (double r);
+
+	unsigned int         inp_count;
+	unsigned int         out_count;
+	float               *inp_data;
+	float               *out_data;
+	void                *inp_list;
+	void                *out_list;
+
+private:
+	enum { NPHASE = 256 };
+
+	Resampler_table     *_table;
+	unsigned int         _nchan;
+	unsigned int         _inmax;
+	unsigned int         _index;
+	unsigned int         _nread;
+	unsigned int         _nzero;
+	double               _ratio;
+	double               _phase;
+	double               _pstep;
+	double               _qstep;
+	double               _wstep;
+	float               *_buff;
+	float               *_c1;
+	float               *_c2;
+	void                *_dummy [8];
+};
+
+};
+
+#endif
diff --git a/libs/zita-resampler/zita-resampler/zresampler_visibility.h b/libs/zita-resampler/zita-resampler/zresampler_visibility.h
new file mode 100644
index 0000000000..6ebfee9a9e
--- /dev/null
+++ b/libs/zita-resampler/zita-resampler/zresampler_visibility.h
@@ -0,0 +1,32 @@
+#ifndef __libzreampler_visibility_h__
+#define __libzreampler_visibility_h__
+
+#if defined(COMPILER_MSVC)
+  #define LIBZRESAMPLER_DLL_IMPORT __declspec(dllimport)
+  #define LIBZRESAMPLER_DLL_EXPORT __declspec(dllexport)
+  #define LIBZRESAMPLER_DLL_LOCAL
+#else
+  #define LIBZRESAMPLER_DLL_IMPORT __attribute__ ((visibility ("default")))
+  #define LIBZRESAMPLER_DLL_EXPORT __attribute__ ((visibility ("default")))
+  #define LIBZRESAMPLER_DLL_LOCAL  __attribute__ ((visibility ("hidden")))
+#endif
+
+#ifdef LIBZRESAMPLER_STATIC // libzita-reampler is a DLL
+  #define LIBZRESAMPLER_API
+  #define LIBZRESAMPLER_LOCAL
+  #define LIBZRESAMPLER_TEMPLATE_API
+  #define LIBZRESAMPLER_TEMPLATE_MEMBER_API
+#else
+  #ifdef LIBZRESAMPLER_DLL_EXPORTS // defined if we are building the libzita-resampler DLL (instead of using it)
+    #define LIBZRESAMPLER_API LIBZRESAMPLER_DLL_EXPORT
+    #define LIBZRESAMPLER_TEMPLATE_API LIBZRESAMPLER_TEMPLATE_DLL_EXPORT
+    #define LIBZRESAMPLER_TEMPLATE_MEMBER_API LIBZRESAMPLER_TEMPLATE_MEMBER_DLL_EXPORT
+  #else
+    #define LIBZRESAMPLER_API LIBZRESAMPLER_DLL_IMPORT
+    #define LIBZRESAMPLER_TEMPLATE_API LIBZRESAMPLER_TEMPLATE_DLL_IMPORT
+    #define LIBZRESAMPLER_TEMPLATE_MEMBER_API LIBZRESAMPLER_TEMPLATE_MEMBER_DLL_IMPORT
+  #endif
+  #define LIBZRESAMPLER_LOCAL LIBZRESAMPLER_DLL_LOCAL
+#endif
+
+#endif