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Diffstat (limited to 'libs/surfaces/tranzport/show.cc')
-rw-r--r-- | libs/surfaces/tranzport/show.cc | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/libs/surfaces/tranzport/show.cc b/libs/surfaces/tranzport/show.cc new file mode 100644 index 0000000000..30c8fbffa9 --- /dev/null +++ b/libs/surfaces/tranzport/show.cc @@ -0,0 +1,400 @@ +/* + * Copyright (C) 2006 Paul Davis + * Copyright (C) 2007 Michael Taht + * + * 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 2 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, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * */ + +#include <iostream> +#include <algorithm> +#include <cmath> + +#define __STDC_FORMAT_MACROS +#include <inttypes.h> +#include <float.h> +#include <sys/time.h> +#include <errno.h> + +#include <pbd/pthread_utils.h> + +#include <ardour/route.h> +#include <ardour/audio_track.h> +#include <ardour/session.h> +#include <ardour/tempo.h> +#include <ardour/location.h> +#include <ardour/dB.h> + +#include <tranzport_control_protocol.h> + +using namespace ARDOUR; +using namespace std; +using namespace sigc; +using namespace PBD; + +#include "i18n.h" + +#include <pbd/abstract_ui.cc> + +float +log_meter (float db) +{ + float def = 0.0f; /* Meter deflection %age */ + + if (db < -70.0f) return 0.0f; + if (db > 6.0f) return 1.0f; + + if (db < -60.0f) { + def = (db + 70.0f) * 0.25f; + } else if (db < -50.0f) { + def = (db + 60.0f) * 0.5f + 2.5f; + } else if (db < -40.0f) { + def = (db + 50.0f) * 0.75f + 7.5f; + } else if (db < -30.0f) { + def = (db + 40.0f) * 1.5f + 15.0f; + } else if (db < -20.0f) { + def = (db + 30.0f) * 2.0f + 30.0f; + } else if (db < 6.0f) { + def = (db + 20.0f) * 2.5f + 50.0f; + } + + /* 115 is the deflection %age that would be + when db=6.0. this is an arbitrary + endpoint for our scaling. + */ + + return def/115.0f; +} + +#define TRANZ_U 0x1 /* upper */ +#define TRANZ_BL 0x2 /* lower left */ +#define TRANZ_Q2 0x3 /* 2 quadrant block */ +#define TRANZ_ULB 0x4 /* Upper + lower left */ +#define TRANZ_L 0x5 /* lower */ +#define TRANZ_UBL 0x6 /* upper left + bottom all */ +#define TRANZ_Q4 0x7 /* 4 quadrant block */ +#define TRANZ_UL 0x08 /* upper left */ + +// Shift Space - switches your "view" +// Currently defined views are: +// BigMeter +// +// Shift Record - SAVE SNAPSHOT +// Somewhere I was rewriting this +// Other meters +// Inverted - show meters "inside out" For example 4 meters covering 2 cells each, and the +// +// each 4 character cell could be an 8 bar meter = 10 meters! +// Dual Meter mode - master and current track +// We have 16 rows of pixels so we COULD do a vertical meter +// BEAT BLOCKS - For each beat, flash a 8 block (could use the center for vertical meters) +// Could have something generic that could handle up to /20 time +// Odd times could flash the whole top bar for the first beat + + +// Vertical Meter _ .colon - + ucolon A P R I H FULLBLACK +// MV@$%&*()- + +// 3 char block rotating beat `\'/ +// 1 char rotating beat {/\} +// 4 char in block rotating beat {/\} +// {\/) + +void TranzportControlProtocol::show_mini_meter() +{ + // FIXME - show the current marker in passing + const int meter_buf_size = 41; + static uint32_t last_meter_fill_l = 0; + static uint32_t last_meter_fill_r = 0; + uint32_t meter_size; + + float speed = fabsf(session->transport_speed()); + char buf[meter_buf_size]; + + if (speed == 1.0) { + meter_size = 32; + } + + if (speed == 0.0) { + meter_size = 20; // not actually reached + } + + if (speed > 0.0 && (speed < 1.0)) { + meter_size = 20; // may shrink more one day + } + + if (speed > 1.0 && (speed < 2.0)) { + meter_size = 20; + } + + if (speed >= 2.0) { + meter_size = 24; + } + + + // you only seem to get a route_table[0] == 0 on moving forward - bug in next_track? + + if (route_table[0] == 0) { + // Principle of least surprise + print (1, 0, "NoAUDIO "); + return; + } + + float level_l = route_get_peak_input_power (0, 0); + float fraction_l = log_meter (level_l); + + // how to figure out if we are mono? + + float level_r = route_get_peak_input_power (0, 1); + float fraction_r = log_meter (level_r); + + uint32_t fill_left = (uint32_t) floor (fraction_l * ((int) meter_size)); + uint32_t fill_right = (uint32_t) floor (fraction_r * ((int) meter_size)); + + if (fill_left == last_meter_fill_l && fill_right == last_meter_fill_r && !lcd_isdamaged(1,0,meter_size/2)) { + /* nothing to do */ + return; + } + + last_meter_fill_l = fill_left; last_meter_fill_r = fill_right; + + // give some feedback when overdriving - override yellow and red lights + + if (fraction_l > 0.96 || fraction_r > 0.96) { + light_on (LightLoop); + } + + if (fraction_l == 1.0 || fraction_r == 1.0) { + light_on (LightTrackrec); + } + + const uint8_t char_map[16] = { ' ', TRANZ_UL, + TRANZ_U, TRANZ_U, + TRANZ_BL, TRANZ_Q2, + TRANZ_Q2, TRANZ_ULB, + TRANZ_L, TRANZ_UBL, + ' ',' ', + TRANZ_L, TRANZ_UBL, + TRANZ_Q4,TRANZ_Q4 + }; + unsigned int val,j,i; + + for(j = 1, i = 0; i < meter_size/2; i++, j+=2) { + val = (fill_left >= j) | ((fill_left >= j+1) << 1) | + ((fill_right >=j) << 2) | ((fill_right >= j+1) << 3); + buf[i] = char_map[val]; + } + + /* print() requires this */ + + buf[meter_size/2] = '\0'; + + print (1, 0, buf); + + /* Add a peak bar, someday do falloff */ + + // char peak[2]; peak[0] = ' '; peak[1] = '\0'; + // if(fraction_l == 1.0 || fraction_r == 1.0) peak[0] = 'P'; + // print (1,8,peak); // Put a peak meter - P in if we peaked. + +} + +void +TranzportControlProtocol::show_meter () +{ + // you only seem to get a route_table[0] on moving forward - bug elsewhere + if (route_table[0] == 0) { + // Principle of least surprise + print (0, 0, "No audio to meter!!!"); + print (1, 0, "Select another track"); + return; + } + + float level = route_get_peak_input_power (0, 0); + float fraction = log_meter (level); + + /* Someday add a peak bar*/ + + /* we draw using a choice of a sort of double colon-like character ("::") or a single, left-aligned ":". + the screen is 20 chars wide, so we can display 40 different levels. compute the level, + then figure out how many "::" to fill. if the answer is odd, make the last one a ":" + */ + + uint32_t fill = (uint32_t) floor (fraction * 40); + char buf[21]; + uint32_t i; + + if (fill == last_meter_fill) { + /* nothing to do */ + return; + } + + last_meter_fill = fill; + + bool add_single_level = (fill % 2 != 0); + fill /= 2; + + if (fraction > 0.96) { + light_on (LightLoop); + } + + + if (fraction == 1.0) { + light_on (LightTrackrec); + } + + + /* add all full steps */ + + for (i = 0; i < fill; ++i) { + buf[i] = 0x07; /* tranzport special code for 4 quadrant LCD block */ + } + + /* add a possible half-step */ + + if (i < 20 && add_single_level) { + buf[i] = 0x03; /* tranzport special code for 2 left quadrant LCD block */ + ++i; + } + + /* fill rest with space */ + + for (; i < 20; ++i) { + buf[i] = ' '; + } + + /* print() requires this */ + + buf[21] = '\0'; + + print (0, 0, buf); + print (1, 0, buf); +} + +void +TranzportControlProtocol::show_bbt (nframes_t where) +{ + if (where != last_where) { + char buf[16]; + BBT_Time bbt; + + // When recording or playing back < 1.0 speed do 1 or 2 + // FIXME - clean up state machine & break up logic + // this has to co-operate with the mini-meter and + // this is NOT the right way. + + session->tempo_map().bbt_time (where, bbt); + last_bars = bbt.bars; + last_beats = bbt.beats; + last_ticks = bbt.ticks; + last_where = where; + + float speed = fabsf(session->transport_speed()); + + if (speed == 1.0) { + sprintf (buf, "%03" PRIu32 "%1" PRIu32, bbt.bars,bbt.beats); // switch to hex one day + print (1, 16, buf); + } + + if (speed == 0.0) { + sprintf (buf, "%03" PRIu32 "|%1" PRIu32 "|%04" PRIu32, bbt.bars,bbt.beats,bbt.ticks); + print (1, 10, buf); + } + + if (speed > 0.0 && (speed < 1.0)) { + sprintf (buf, "%03" PRIu32 "|%1" PRIu32 "|%04" PRIu32, bbt.bars,bbt.beats,bbt.ticks); + print (1, 10, buf); + } + + if (speed > 1.0 && (speed < 2.0)) { + sprintf (buf, "%03" PRIu32 "|%1" PRIu32 "|%04" PRIu32, bbt.bars,bbt.beats,bbt.ticks); + print (1, 10, buf); + } + + if (speed >= 2.0) { + sprintf (buf, "%03" PRIu32 "|%1" PRIu32 "|%02" PRIu32, bbt.bars,bbt.beats,bbt.ticks); + print (1, 12, buf); + } + + TempoMap::Metric m (session->tempo_map().metric_at (where)); + + // the lights stop working well at above 100 bpm so don't bother + if(m.tempo().beats_per_minute() < 101.0 && (speed > 0.0)) { + + // something else can reset these, so we need to + + lights_pending[LightRecord] = false; + lights_pending[LightAnysolo] = false; + switch(last_beats) { + case 1: if(last_ticks < 250 || last_ticks >= 0) lights_pending[LightRecord] = true; break; + default: if(last_ticks < 250) lights_pending[LightAnysolo] = true; + } + } + } +} + +void +TranzportControlProtocol::show_transport_time () +{ + nframes_t where = session->transport_frame(); + show_bbt(where); +} + +void +TranzportControlProtocol::show_smpte (nframes_t where) +{ + if ((where != last_where) || lcd_isdamaged(1,9,10)) { + + char buf[5]; + SMPTE::Time smpte; + + session->smpte_time (where, smpte); + + if (smpte.negative) { + sprintf (buf, "-%02" PRIu32 ":", smpte.hours); + } else { + sprintf (buf, " %02" PRIu32 ":", smpte.hours); + } + print (1, 8, buf); + + sprintf (buf, "%02" PRIu32 ":", smpte.minutes); + print (1, 12, buf); + + sprintf (buf, "%02" PRIu32 ":", smpte.seconds); + print (1, 15, buf); + + sprintf (buf, "%02" PRIu32, smpte.frames); + print_noretry (1, 18, buf); + + last_where = where; + } +} + +void +TranzportControlProtocol::show_track_gain () +{ +// FIXME last_track gain has to become meter/track specific + if (route_table[0]) { + gain_t g = route_get_gain (0); + if ((g != last_track_gain) || lcd_isdamaged(0,12,8)) { + char buf[16]; + snprintf (buf, sizeof (buf), "%6.1fdB", coefficient_to_dB (route_get_effective_gain (0))); + print (0, 12, buf); + last_track_gain = g; + } + } else { + print (0, 9, " "); + } +} |