X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fardour%2Futils.h;h=4edf9fb446f92a74fc6976567783d93ae7754bc8;hb=d9de72215b85fb480bca948069d2c583aa342544;hp=5128c98a777ac9e5d09ae2502f8f4ffc3adc7afd;hpb=21d85f1854461ab6209d23e278fe289505cd106c;p=ardour.git diff --git a/libs/ardour/ardour/utils.h b/libs/ardour/ardour/utils.h index 5128c98a77..4edf9fb446 100644 --- a/libs/ardour/ardour/utils.h +++ b/libs/ardour/ardour/utils.h @@ -1,5 +1,5 @@ /* - 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 @@ -15,52 +15,182 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id$ */ #ifndef __ardour_utils_h__ #define __ardour_utils_h__ +#ifdef WAF_BUILD +#include "libardour-config.h" +#endif + #include #include #include -#ifdef HAVE_COREAUDIO +#include "boost/shared_ptr.hpp" + +#if __APPLE__ #include -#endif +#endif /* __APPLE__ */ -#include "ardour.h" +#include "ardour/ardour.h" +#include "ardour/data_type.h" +#include "ardour/dB.h" +#include "ardour/types.h" + +#include "ardour/libardour_visibility.h" class XMLNode; -void elapsed_time_to_str (char *buf, uint32_t seconds); -std::string legalize_for_path (std::string str); -std::ostream& operator<< (std::ostream& o, const ARDOUR::BBT_Time& bbt); -XMLNode* find_named_node (const XMLNode& node, std::string name); -std::string placement_as_string (ARDOUR::Placement); +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); } -int cmp_nocase (const std::string& s, const std::string& s2); +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); + +LIBARDOUR_API const char* edit_mode_to_string (ARDOUR::EditMode); +LIBARDOUR_API ARDOUR::EditMode string_to_edit_mode (std::string); + +#undef OLD_GAIN_MATH +#define OLD_GAIN_MATH -int tokenize_fullpath (std::string fullpath, std::string& path, std::string& name); +static inline double +gain_to_slider_position (ARDOUR::gain_t g) +{ + if (g == 0) return 0; -int touch_file(std::string path); +#ifndef OLD_GAIN_MATH + /* Power Law With Exponential Cutoff 2D, fit to data from TC Spectra + console (image of fader gradations -std::string region_name_from_path (std::string path); -std::string path_expand (std::string); + y = C * x(-T) * exp(-x/K) + + 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, 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 boost::shared_ptr route_list_to_control_list (boost::shared_ptr rl, boost::shared_ptr (Stripable::*get_control)() const) { + boost::shared_ptr cl (new ControlList); + for (RouteList::const_iterator r = rl->begin(); r != rl->end(); ++r) { + boost::shared_ptr ac = ((*r).get()->*get_control)(); + if (ac) { + cl->push_back (ac); + } + } + return cl; +} -void compute_equal_power_fades (jack_nframes_t nframes, float* in, float* out); +#if __APPLE__ +LIBARDOUR_API std::string CFStringRefToStdString(CFStringRef stringRef); +#endif // __APPLE__ -#ifdef HAVE_COREAUDIO -std::string CFStringRefToStdString(CFStringRef stringRef); -#endif // HAVE_COREAUDIO +} //namespave #endif /* __ardour_utils_h__ */