/*
- Copyright (C) 1999 Paul Davis
+ Copyright (C) 1999 Paul Davis
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
#ifndef __ardour_utils_h__
#define __ardour_utils_h__
+#ifdef WAF_BUILD
+#include "libardour-config.h"
+#endif
+
#include <iostream>
#include <string>
#include <cmath>
-#if defined(HAVE_COREAUDIO) || defined(HAVE_AUDIOUNITS)
+#include "boost/shared_ptr.hpp"
+
+#if __APPLE__
#include <CoreFoundation/CoreFoundation.h>
-#endif
+#endif /* __APPLE__ */
+
+#include "ardour/ardour.h"
+#include "ardour/data_type.h"
+#include "ardour/dB.h"
+#include "ardour/types.h"
-#include "ardour.h"
+#include "ardour/libardour_visibility.h"
class XMLNode;
-Glib::ustring legalize_for_path (Glib::ustring str);
-std::ostream& operator<< (std::ostream& o, const ARDOUR::BBT_Time& bbt);
-XMLNode* find_named_node (const XMLNode& node, std::string name);
+namespace ARDOUR {
+
+class Route;
+class Track;
+
+LIBARDOUR_API std::string legalize_for_path (const std::string& str);
+LIBARDOUR_API std::string legalize_for_universal_path (const std::string& str);
+LIBARDOUR_API std::string legalize_for_uri (const std::string& str);
+LIBARDOUR_API std::string legalize_for_path_2X (const std::string& str);
+LIBARDOUR_API XMLNode* find_named_node (const XMLNode& node, std::string name);
+LIBARDOUR_API std::string bool_as_string (bool);
static inline float f_max(float x, float a) {
x -= a;
x += fabsf (x);
x *= 0.5f;
x += a;
-
+
return (x);
}
-std::string bump_name_once(std::string s);
+LIBARDOUR_API std::string bump_name_once(const std::string& s, char delimiter);
+LIBARDOUR_API std::string bump_name_number(const std::string& s);
+
+LIBARDOUR_API int cmp_nocase (const std::string& s, const std::string& s2);
+LIBARDOUR_API int cmp_nocase_utf8 (const std::string& s1, const std::string& s2);
+
+LIBARDOUR_API std::string region_name_from_path (std::string path, bool strip_channels, bool add_channel_suffix = false, uint32_t total = 0, uint32_t this_one = 0);
+LIBARDOUR_API bool path_is_paired (std::string path, std::string& pair_base);
+
+LIBARDOUR_API void compute_equal_power_fades (ARDOUR::framecnt_t nframes, float* in, float* out);
+
+LIBARDOUR_API const char* sync_source_to_string (ARDOUR::SyncSource src, bool sh = false);
+LIBARDOUR_API ARDOUR::SyncSource string_to_sync_source (std::string str);
-int cmp_nocase (const std::string& s, const std::string& s2);
+LIBARDOUR_API const char* edit_mode_to_string (ARDOUR::EditMode);
+LIBARDOUR_API ARDOUR::EditMode string_to_edit_mode (std::string);
-int touch_file(Glib::ustring path);
+#undef OLD_GAIN_MATH
+#define OLD_GAIN_MATH
-Glib::ustring path_expand (Glib::ustring);
-Glib::ustring region_name_from_path (Glib::ustring path, bool strip_channels, bool add_channel_suffix = false, uint32_t total = 0, uint32_t this_one = 0);
-bool path_is_paired (Glib::ustring path, Glib::ustring& pair_base);
+static inline double
+gain_to_slider_position (ARDOUR::gain_t g)
+{
+ if (g == 0) return 0;
-void compute_equal_power_fades (nframes_t nframes, float* in, float* out);
+#ifndef OLD_GAIN_MATH
+ /* Power Law With Exponential Cutoff 2D, fit to data from TC Spectra
+ console (image of fader gradations
-const char* slave_source_to_string (ARDOUR::SlaveSource src);
-ARDOUR::SlaveSource string_to_slave_source (std::string str);
+ y = C * x(-T) * exp(-x/K)
-const char* edit_mode_to_string (ARDOUR::EditMode);
-ARDOUR::EditMode string_to_edit_mode (std::string);
+ C = 8.2857630370864188E-01
+ T = -5.1526743785019269E-01
+ K = 7.8990885960495589E+00
+ */
+
+ return 8.2857630370864188E-01 * pow(g,5.1526743785019269E-01) * exp (-g/7.8990885960495589E+00);
+#else
+ return pow((6.0*log(g)/log(2.0)+192.0)/198.0, 8.0);
+#endif
+}
+
+static inline ARDOUR::gain_t
+slider_position_to_gain (double pos)
+{
+ if (pos == 0.0) {
+ return 0.0;
+ }
+
+#ifndef OLD_GAIN_MATH
+ /* 5th order polynomial function fit to data from a TC Spectra console
+ fader (image of fader gradations).
+
+ y = a + bx1 + cx2 + dx3 + fx4 + gx5
+
+ a = -1.1945480381045521E-02
+ b = 1.5809476525537265E+00
+ c = -1.5850710838966151E+01
+ d = 6.1643128605961991E+01
+ f = -8.5525246160607693E+01
+ g = 4.1312725896188283E+01
+
+ */
+
+ double p = pos;
+ double g = -1.1945480381045521E-02;
+
+ g += 1.5809476525537265E+00 * pos;
+ pos *= p;
+ g += -1.5850710838966151E+01 * pos;
+ pos *= p;
+ g += 6.1643128605961991E+01 * pos;
+ pos *= p;
+ g += -8.5525246160607693E+01 * pos;
+ pos *= p;
+ g += 4.1312725896188283E+01 * pos;
+
+ return g;
+#else
+ /* XXX Marcus writes: this doesn't seem right to me. but i don't have a better answer ... */
+ if (pos == 0.0) return 0;
+ return pow (2.0,(sqrt(sqrt(sqrt(pos)))*198.0-192.0)/6.0);
+#endif
+}
+#undef OLD_GAIN_MATH
+
+LIBARDOUR_API double gain_to_slider_position_with_max (double g, double max_gain = 2.0);
+LIBARDOUR_API double slider_position_to_gain_with_max (double g, double max_gain = 2.0);
/* I don't really like hard-coding these falloff rates here
* Probably should use a map of some kind that could be configured
* These rates are db/sec.
*/
-#define METER_FALLOFF_OFF 0.0f
-#define METER_FALLOFF_SLOWEST 6.6f // BBC standard
-#define METER_FALLOFF_SLOW 8.6f // BBC standard
-#define METER_FALLOFF_MEDIUM 20.0f
-#define METER_FALLOFF_FAST 32.0f
-#define METER_FALLOFF_FASTER 46.0f
-#define METER_FALLOFF_FASTEST 70.0f
+#define METER_FALLOFF_OFF 0.0f
+#define METER_FALLOFF_SLOWEST 6.6f // BBC standard
+#define METER_FALLOFF_SLOW 8.6f // BBC standard, EBU 24dB / 2.8sec
+#define METER_FALLOFF_SLOWISH 12.0f // DIN 20dB / 1.7 sec
+#define METER_FALLOFF_MODERATE 13.3f // EBU-PPM, IRT PPM- 20dB / 1.5 sec
+#define METER_FALLOFF_MEDIUM 20.0f
+#define METER_FALLOFF_FAST 32.0f
+
+LIBARDOUR_API float meter_falloff_to_float (ARDOUR::MeterFalloff);
+LIBARDOUR_API ARDOUR::MeterFalloff meter_falloff_from_float (float);
+LIBARDOUR_API float meter_falloff_to_db_per_sec (float);
+
+LIBARDOUR_API const char* native_header_format_extension (ARDOUR::HeaderFormat, const ARDOUR::DataType& type);
+LIBARDOUR_API bool matching_unsuffixed_filename_exists_in (const std::string& dir, const std::string& name);
+
+LIBARDOUR_API uint32_t how_many_dsp_threads ();
+
+template<typename T> boost::shared_ptr<ControlList> route_list_to_control_list (boost::shared_ptr<RouteList> rl, boost::shared_ptr<T> (Route::*get_control)() const) {
+ boost::shared_ptr<ControlList> cl (new ControlList);
+ for (RouteList::const_iterator r = rl->begin(); r != rl->end(); ++r) {
+ boost::shared_ptr<AutomationControl> ac = ((*r).get()->*get_control)();
+ if (ac) {
+ cl->push_back (ac);
+ }
+ }
+ return cl;
+}
-float meter_falloff_to_float (ARDOUR::MeterFalloff);
-ARDOUR::MeterFalloff meter_falloff_from_float (float);
-float meter_falloff_to_db_per_sec (float);
+template<typename T> boost::shared_ptr<ControlList> route_list_to_control_list (boost::shared_ptr<RouteList> rl, boost::shared_ptr<T> (Track::*get_control)() const) {
+ boost::shared_ptr<ControlList> cl (new ControlList);
+ for (RouteList::const_iterator r = rl->begin(); r != rl->end(); ++r) {
+ boost::shared_ptr<Track> t = boost::dynamic_pointer_cast<Track> (*r);
+ boost::shared_ptr<AutomationControl> ac = (t.get()->*get_control)();
+ if (ac) {
+ cl->push_back (ac);
+ }
+ }
+ return cl;
+}
-#if defined(HAVE_COREAUDIO) || defined(HAVE_AUDIOUNITS)
-std::string CFStringRefToStdString(CFStringRef stringRef);
-#endif // HAVE_COREAUDIO
+#if __APPLE__
+LIBARDOUR_API std::string CFStringRefToStdString(CFStringRef stringRef);
+#endif // __APPLE__
-#endif /* __ardour_utils_h__ */
+} //namespave
+#endif /* __ardour_utils_h__ */
projects / ardour.git / blobdiff